diff --git a/CMakeLists.txt b/CMakeLists.txt index 366c95e..4d586fb 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -47,6 +47,8 @@ set(C_SOURCES "component/uart/fsl_adapter_lpuart.c" "source/freertos_hello.c" "source/user_irqhandlers.c" + "source/sdmmc_config.c" + "source/tasks/user_hello_task.c" "board/peripherals.c" "board/pin_mux.c" "board/board.c" @@ -56,6 +58,17 @@ set(C_SOURCES "utilities/fsl_sbrk.c" "utilities/fsl_assert.c" "utilities/fsl_str.c" + "middleware/sdmmc/sd/fsl_sd.c" + "middleware/sdmmc/common/fsl_sdmmc_common.c" + "middleware/sdmmc/mmc/fsl_mmc.c" + "middleware/sdmmc/osa/fsl_sdmmc_osa.c" + "middleware/sdmmc/sdio/fsl_sdio.c" + "middleware/sdmmc/host/usdhc/non_blocking/fsl_sdmmc_host.c" + "middleware/fatfs/source/ffsystem.c" + "middleware/fatfs/source/ffunicode.c" + "middleware/fatfs/source/diskio.c" + "middleware/fatfs/source/ff.c" + "middleware/fatfs/source/fsl_sd_disk/fsl_sd_disk.c" ) # Copy them from Makefile @@ -87,15 +100,25 @@ include_directories( "source" "board" "utilities" + "middleware/sdmmc/sd" + "middleware/sdmmc/common" + "middleware/sdmmc/mmc" + "middleware/sdmmc/osa" + "middleware/sdmmc/sdio" + "middleware/sdmmc/host/usdhc" + "middleware/fatfs/source" + "middleware/fatfs/source/fsl_sd_disk" ) # Conditional compiler flags -set(CMAKE_C_FLAGS_DEBUG "-DDEBUG") +set(CMAKE_C_FLAGS_DEBUG "-g -DDEBUG") set(CMAKE_C_FLAGS_RELEASE "-DNDEBUG") -set(CMAKE_CXX_FLAGS_DEBUG "-DDEBUG") +set(CMAKE_CXX_FLAGS_DEBUG "-g -DDEBUG") set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG") +set(CMAKE_EXE_LINKER_FLAGS_DEBUG "-g") + # Final compiler flags set(CMAKE_C_FLAGS "${CFLAGS_HARDWARE} ${CFLAGS_EXTRA} -Wall -fdata-sections -ffunction-sections -ffreestanding -fno-builtin") set(CMAKE_CXX_FLAGS "${CFLAGS_HARDWARE} ${CFLAGS_EXTRA} -Wall -fdata-sections -ffunction-sections -ffreestanding -fno-builtin") diff --git a/board/clock_config.c b/board/clock_config.c index 62797e3..5f9cd56 100644 --- a/board/clock_config.c +++ b/board/clock_config.c @@ -67,7 +67,7 @@ outputs: - {id: GPT1_ipg_clk_highfreq.outFreq, value: 75 MHz} - {id: GPT2_ipg_clk_highfreq.outFreq, value: 75 MHz} - {id: IPG_CLK_ROOT.outFreq, value: 150 MHz} -- {id: LCDIF_CLK_ROOT.outFreq, value: 36 MHz} +- {id: LCDIF_CLK_ROOT.outFreq, value: 33.75 MHz} - {id: LPI2C_CLK_ROOT.outFreq, value: 60 MHz} - {id: LPSPI_CLK_ROOT.outFreq, value: 105.6 MHz} - {id: LVDS1_CLK.outFreq, value: 1.2 GHz} @@ -95,8 +95,8 @@ settings: - {id: CCM.ARM_PODF.scale, value: '2', locked: true} - {id: CCM.FLEXSPI_PODF.scale, value: '3', locked: true} - {id: CCM.FLEXSPI_SEL.sel, value: CCM.PLL3_SW_CLK_SEL} -- {id: CCM.LCDIF_PODF.scale, value: '5', locked: true} -- {id: CCM.LCDIF_PRED.scale, value: '3', locked: true} +- {id: CCM.LCDIF_PODF.scale, value: '4', locked: true} +- {id: CCM.LCDIF_PRED.scale, value: '4', locked: true} - {id: CCM.LPSPI_PODF.scale, value: '5', locked: true} - {id: CCM.PERCLK_PODF.scale, value: '2', locked: true} - {id: CCM.SEMC_PODF.scale, value: '4', locked: true} @@ -336,9 +336,9 @@ void BOARD_BootClockRUN(void) /* Disable LCDIF clock gate. */ CLOCK_DisableClock(kCLOCK_LcdPixel); /* Set LCDIF_PRED. */ - CLOCK_SetDiv(kCLOCK_LcdifPreDiv, 2); + CLOCK_SetDiv(kCLOCK_LcdifPreDiv, 3); /* Set LCDIF_CLK_PODF. */ - CLOCK_SetDiv(kCLOCK_LcdifDiv, 4); + CLOCK_SetDiv(kCLOCK_LcdifDiv, 3); /* Set Lcdif pre clock source. */ CLOCK_SetMux(kCLOCK_LcdifPreMux, 5); /* Disable SPDIF clock gate. */ diff --git a/board/clock_config.c.bak b/board/clock_config.c.bak index 5f9cd56..62797e3 100644 --- a/board/clock_config.c.bak +++ b/board/clock_config.c.bak @@ -67,7 +67,7 @@ outputs: - {id: GPT1_ipg_clk_highfreq.outFreq, value: 75 MHz} - {id: GPT2_ipg_clk_highfreq.outFreq, value: 75 MHz} - {id: IPG_CLK_ROOT.outFreq, value: 150 MHz} -- {id: LCDIF_CLK_ROOT.outFreq, value: 33.75 MHz} +- {id: LCDIF_CLK_ROOT.outFreq, value: 36 MHz} - {id: LPI2C_CLK_ROOT.outFreq, value: 60 MHz} - {id: LPSPI_CLK_ROOT.outFreq, value: 105.6 MHz} - {id: LVDS1_CLK.outFreq, value: 1.2 GHz} @@ -95,8 +95,8 @@ settings: - {id: CCM.ARM_PODF.scale, value: '2', locked: true} - {id: CCM.FLEXSPI_PODF.scale, value: '3', locked: true} - {id: CCM.FLEXSPI_SEL.sel, value: CCM.PLL3_SW_CLK_SEL} -- {id: CCM.LCDIF_PODF.scale, value: '4', locked: true} -- {id: CCM.LCDIF_PRED.scale, value: '4', locked: true} +- {id: CCM.LCDIF_PODF.scale, value: '5', locked: true} +- {id: CCM.LCDIF_PRED.scale, value: '3', locked: true} - {id: CCM.LPSPI_PODF.scale, value: '5', locked: true} - {id: CCM.PERCLK_PODF.scale, value: '2', locked: true} - {id: CCM.SEMC_PODF.scale, value: '4', locked: true} @@ -336,9 +336,9 @@ void BOARD_BootClockRUN(void) /* Disable LCDIF clock gate. */ CLOCK_DisableClock(kCLOCK_LcdPixel); /* Set LCDIF_PRED. */ - CLOCK_SetDiv(kCLOCK_LcdifPreDiv, 3); + CLOCK_SetDiv(kCLOCK_LcdifPreDiv, 2); /* Set LCDIF_CLK_PODF. */ - CLOCK_SetDiv(kCLOCK_LcdifDiv, 3); + CLOCK_SetDiv(kCLOCK_LcdifDiv, 4); /* Set Lcdif pre clock source. */ CLOCK_SetMux(kCLOCK_LcdifPreMux, 5); /* Disable SPDIF clock gate. */ diff --git a/board/clock_config.h b/board/clock_config.h index 75252c2..8f75159 100644 --- a/board/clock_config.h +++ b/board/clock_config.h @@ -53,7 +53,7 @@ void BOARD_InitBootClocks(void); #define BOARD_BOOTCLOCKRUN_GPT1_IPG_CLK_HIGHFREQ 75000000UL #define BOARD_BOOTCLOCKRUN_GPT2_IPG_CLK_HIGHFREQ 75000000UL #define BOARD_BOOTCLOCKRUN_IPG_CLK_ROOT 150000000UL -#define BOARD_BOOTCLOCKRUN_LCDIF_CLK_ROOT 36000000UL +#define BOARD_BOOTCLOCKRUN_LCDIF_CLK_ROOT 33750000UL #define BOARD_BOOTCLOCKRUN_LPI2C_CLK_ROOT 60000000UL #define BOARD_BOOTCLOCKRUN_LPSPI_CLK_ROOT 105600000UL #define BOARD_BOOTCLOCKRUN_LVDS1_CLK 1200000000UL diff --git a/board/clock_config.h.bak b/board/clock_config.h.bak index 8f75159..75252c2 100644 --- a/board/clock_config.h.bak +++ b/board/clock_config.h.bak @@ -53,7 +53,7 @@ void BOARD_InitBootClocks(void); #define BOARD_BOOTCLOCKRUN_GPT1_IPG_CLK_HIGHFREQ 75000000UL #define BOARD_BOOTCLOCKRUN_GPT2_IPG_CLK_HIGHFREQ 75000000UL #define BOARD_BOOTCLOCKRUN_IPG_CLK_ROOT 150000000UL -#define BOARD_BOOTCLOCKRUN_LCDIF_CLK_ROOT 33750000UL +#define BOARD_BOOTCLOCKRUN_LCDIF_CLK_ROOT 36000000UL #define BOARD_BOOTCLOCKRUN_LPI2C_CLK_ROOT 60000000UL #define BOARD_BOOTCLOCKRUN_LPSPI_CLK_ROOT 105600000UL #define BOARD_BOOTCLOCKRUN_LVDS1_CLK 1200000000UL diff --git a/board/peripherals.c b/board/peripherals.c index 60a01ad..ca8390c 100644 --- a/board/peripherals.c +++ b/board/peripherals.c @@ -320,6 +320,102 @@ instance: static void NVIC_init(void) { } */ +/*********************************************************************************************************************** + * FATFS initialization code + **********************************************************************************************************************/ +/* clang-format off */ +/* TEXT BELOW IS USED AS SETTING FOR TOOLS ************************************* +instance: +- name: 'FATFS' +- type: 'fatfs' +- mode: 'general' +- custom_name_enabled: 'false' +- type_id: 'fatfs_2f85acf758668258920f70258052a088' +- functional_group: 'BOARD_InitPeripherals' +- config_sets: + - init_config: + - initConfig: + - initPartitionsStr: 'false' + - multiplePartitions: + - 0: + - Volume: '0' + - Partition: 'autoDetect' + - 1: + - Volume: '0' + - Partition: 'autoDetect' + - enablePhysicalLayerInit: 'false' + - diskConfig: + - initFunctionID: 'FATFS_DiskInit' + - initResultObject: 'false' + - resultName: 'FATFS_Result' + - fatfsObjects: + - 0: + - objID: 'FATFS_System_0' + - diskMount: 'false' + - mountPath: '0:' + - mountInitOpt: 'false' + - filObjects: [] + - filInfoObjects: [] + - dirObjects: [] + - ff_config: + - revisionID: 'rev14_1' + - MSDKadaptation: 'SD_DISK_ENABLE' + - functionConfig: + - FF_FS_READONLY: 'false' + - FF_FS_MINIMIZE: 'level1' + - FF_USE_STRFUNC: 'enableWithoutConversion' + - FF_USE_FIND: 'disableDirRead' + - FF_USE_MKFS: 'true' + - FF_USE_FASTSEEK: 'false' + - FF_USE_EXPAND: 'false' + - FF_USE_CHMOD: 'false' + - FF_USE_LABEL: 'false' + - FF_USE_FORWARD: 'false' + - namespaceConfig: + - FF_USE_LFN: 'enableLfnStack' + - FF_MAX_LFN: '255' + - FF_LFN_BUF: 'LFNID' + - FF_SFN_BUF: 'SFNID' + - FF_LFN_UNICODE: 'UTF8' + - FF_STRF_ENCODE: 'UTF8' + - FF_CODE_PAGE: 'cpUS' + - FF_FS_RPATH: 'enableRP2' + - driveConfig: + - FF_VOLUMES: '1' + - FF_STR_VOLUME_ID: 'stringIdWindows' + - volumes: + - 0: + - volumeStr: 'SD' + - FF_MULTI_PARTITION: 'false' + - FF_MIN_SS: 'value512' + - FF_MAX_SS: 'value512' + - FF_LBA64: 'false' + - FF_MIN_GPT: '0x100000000' + - FF_USE_TRIM: 'false' + - systemConfig: + - FF_FS_TINY: 'false' + - FF_FS_EXFAT: 'true' + - FF_FS_NORTC: 'false' + - FF_NORTC_MON: '1' + - FF_NORTC_MDAY: '1' + - FF_NORTC_YEAR: '2020' + - FF_FS_NOFSINFO: '' + - FF_FS_LOCK: '0' + - FF_FS_REENTRANT: 'false' + - FF_FS_TIMEOUT: '1000' + - FF_SYNC_t: 'HANDLE' + - includeOS: 'false' + - headerFileName: 'somertos.h' + - fatfs_codegenerator: [] + * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/ +/* clang-format on */ +/* FATFS System object */ +FATFS FATFS_System_0; + +/* Empty initialization function (commented out) +static void FATFS_init(void) { +} */ + /*********************************************************************************************************************** * Initialization functions **********************************************************************************************************************/ diff --git a/board/peripherals.c.bak b/board/peripherals.c.bak index 1ed586e..347fb7e 100644 --- a/board/peripherals.c.bak +++ b/board/peripherals.c.bak @@ -10,7 +10,7 @@ product: Peripherals v9.0 processor: MIMXRT1052xxxxB package_id: MIMXRT1052DVL6B mcu_data: ksdk2_0 -processor_version: 9.0.0 +processor_version: 9.0.1 board: IMXRT1050-EVKB functionalGroups: - name: BOARD_InitPeripherals @@ -295,6 +295,31 @@ static void LCDIF_init(void) { ELCDIF_RgbModeStart(LCDIF_PERIPHERAL); } +/*********************************************************************************************************************** + * NVIC initialization code + **********************************************************************************************************************/ +/* clang-format off */ +/* TEXT BELOW IS USED AS SETTING FOR TOOLS ************************************* +instance: +- name: 'NVIC' +- type: 'nvic' +- mode: 'general' +- custom_name_enabled: 'false' +- type_id: 'nvic_57b5eef3774cc60acaede6f5b8bddc67' +- functional_group: 'BOARD_InitPeripherals' +- peripheral: 'NVIC' +- config_sets: + - nvic: + - interrupt_table: + - 0: [] + - interrupts: [] + * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/ +/* clang-format on */ + +/* Empty initialization function (commented out) +static void NVIC_init(void) { +} */ + /*********************************************************************************************************************** * FATFS initialization code **********************************************************************************************************************/ @@ -318,7 +343,7 @@ instance: - 1: - Volume: '0' - Partition: 'autoDetect' - - enablePhysicalLayerInit: 'false' + - enablePhysicalLayerInit: 'true' - diskConfig: - initFunctionID: 'FATFS_DiskInit' - initResultObject: 'false' @@ -351,26 +376,16 @@ instance: - FF_MAX_LFN: '255' - FF_LFN_BUF: 'LFNID' - FF_SFN_BUF: 'SFNID' - - FF_LFN_UNICODE: 'ansiOEM' - - FF_STRF_ENCODE: 'ansiOEM' - - FF_CODE_PAGE: 'cpJapanese' + - FF_LFN_UNICODE: 'UTF8' + - FF_STRF_ENCODE: 'UTF8' + - FF_CODE_PAGE: 'cpUS' - FF_FS_RPATH: 'enableRP2' - driveConfig: - - FF_VOLUMES: '6' - - FF_STR_VOLUME_ID: 'numericId' + - FF_VOLUMES: '1' + - FF_STR_VOLUME_ID: 'stringIdWindows' - volumes: - 0: - - volumeStr: 'RAM' - - 1: - - volumeStr: 'NAND' - - 2: - - volumeStr: 'CF' - - 3: - volumeStr: 'SD' - - 4: - - volumeStr: 'SD2' - - 5: - - volumeStr: 'USB' - FF_MULTI_PARTITION: 'false' - FF_MIN_SS: 'value512' - FF_MAX_SS: 'value512' @@ -379,7 +394,7 @@ instance: - FF_USE_TRIM: 'false' - systemConfig: - FF_FS_TINY: 'false' - - FF_FS_EXFAT: 'false' + - FF_FS_EXFAT: 'true' - FF_FS_NORTC: 'false' - FF_NORTC_MON: '1' - FF_NORTC_MDAY: '1' @@ -397,9 +412,10 @@ instance: /* FATFS System object */ FATFS FATFS_System_0; -/* Empty initialization function (commented out) static void FATFS_init(void) { -} */ + /* FATFS physical layer user initialization */ + FATFS_DiskInit(); +} /*********************************************************************************************************************** * Initialization functions @@ -410,6 +426,7 @@ void BOARD_InitPeripherals(void) LPUART1_init(); SEMC_init(); LCDIF_init(); + FATFS_init(); } /*********************************************************************************************************************** diff --git a/board/peripherals.h b/board/peripherals.h index 48559da..6154fa8 100644 --- a/board/peripherals.h +++ b/board/peripherals.h @@ -14,6 +14,8 @@ #include "fsl_clock.h" #include "fsl_semc.h" #include "fsl_elcdif.h" +#include "ff.h" +#include "diskio.h" #if defined(__cplusplus) extern "C" { @@ -57,6 +59,8 @@ extern semc_sdram_config_t SEMC_sdram_struct; extern const elcdif_rgb_mode_config_t LCDIF_rgbConfig; /* RGB buffer */ extern uint16_t LCDIF_Buffer[2][LCDIF_PANEL_HEIGHT][LCDIF_PANEL_WIDTH]; +/* FATFS System object */ +extern FATFS FATFS_System_0; /*********************************************************************************************************************** * Initialization functions diff --git a/board/peripherals.h.bak b/board/peripherals.h.bak index 6154fa8..7f42ed3 100644 --- a/board/peripherals.h.bak +++ b/board/peripherals.h.bak @@ -62,6 +62,12 @@ extern uint16_t LCDIF_Buffer[2][LCDIF_PANEL_HEIGHT][LCDIF_PANEL_WIDTH]; /* FATFS System object */ extern FATFS FATFS_System_0; +/*********************************************************************************************************************** + * Callback functions + **********************************************************************************************************************/ +/* Extern function for the physical layer initialization*/ +extern void FATFS_DiskInit(void); + /*********************************************************************************************************************** * Initialization functions **********************************************************************************************************************/ diff --git a/board/pin_mux.c b/board/pin_mux.c index 0a3f171..579383a 100644 --- a/board/pin_mux.c +++ b/board/pin_mux.c @@ -14,6 +14,7 @@ processor_version: 9.0.1 board: IMXRT1050-EVKB pin_labels: - {pin_num: M11, pin_signal: GPIO_AD_B0_02, label: LCDIF_RESET, identifier: LCDIF_RESEt;LCDIF_RESET} +- {pin_num: G11, pin_signal: GPIO_AD_B0_03, label: 'USB_OTG1_OC/J24[1]', identifier: SD1_CD} - {pin_num: G13, pin_signal: GPIO_AD_B0_10, label: LED_BLUE, identifier: INT1_COMBO;LED_BLUE} - {pin_num: L10, pin_signal: GPIO_AD_B0_15, label: LCDIF_BL, identifier: CAN2_RX;LCDIF_BL} power_domains: {NVCC_GPIO: '3.3', NVCC_SD0: '3.3'} @@ -125,6 +126,7 @@ BOARD_InitPins: - {pin_num: H2, peripheral: USDHC1, signal: 'usdhc_data, 2', pin_signal: GPIO_SD_B0_04} - {pin_num: J2, peripheral: USDHC1, signal: 'usdhc_data, 3', pin_signal: GPIO_SD_B0_05} - {pin_num: J1, peripheral: USDHC1, signal: 'usdhc_data, 0', pin_signal: GPIO_SD_B0_02} + - {pin_num: G11, peripheral: GPIO1, signal: 'gpio_io, 03', pin_signal: GPIO_AD_B0_03, direction: INPUT, gpio_interrupt: kGPIO_IntFallingEdge, pull_up_down_config: Pull_Up_100K_Ohm} * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS *********** */ @@ -146,6 +148,17 @@ void BOARD_InitPins(void) { /* Initialize GPIO functionality on GPIO_AD_B0_02 (pin M11) */ GPIO_PinInit(GPIO1, 2U, &LCDIF_RESET_config); + /* GPIO configuration of SD1_CD on GPIO_AD_B0_03 (pin G11) */ + gpio_pin_config_t SD1_CD_config = { + .direction = kGPIO_DigitalInput, + .outputLogic = 0U, + .interruptMode = kGPIO_IntFallingEdge + }; + /* Initialize GPIO functionality on GPIO_AD_B0_03 (pin G11) */ + GPIO_PinInit(GPIO1, 3U, &SD1_CD_config); + /* Enable GPIO pin interrupt on GPIO_AD_B0_03 (pin G11) */ + GPIO_PortEnableInterrupts(GPIO1, 1U << 3U); + /* GPIO configuration of LED_BLUE on GPIO_AD_B0_10 (pin G13) */ gpio_pin_config_t LED_BLUE_config = { .direction = kGPIO_DigitalOutput, @@ -165,6 +178,7 @@ void BOARD_InitPins(void) { GPIO_PinInit(GPIO1, 15U, &LCDIF_BL_config); IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_02_GPIO1_IO02, 0U); + IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_03_GPIO1_IO03, 0U); IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_10_GPIO1_IO10, 0U); IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_12_LPUART1_TX, 0U); IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_13_LPUART1_RX, 0U); @@ -247,6 +261,7 @@ void BOARD_InitPins(void) { IOMUXC_SetPinMux(IOMUXC_GPIO_SD_B0_03_USDHC1_DATA1, 0U); IOMUXC_SetPinMux(IOMUXC_GPIO_SD_B0_04_USDHC1_DATA2, 0U); IOMUXC_SetPinMux(IOMUXC_GPIO_SD_B0_05_USDHC1_DATA3, 0U); + IOMUXC_SetPinConfig(IOMUXC_GPIO_AD_B0_03_GPIO1_IO03, 0x90B0U); IOMUXC_SetPinConfig(IOMUXC_GPIO_AD_B0_12_LPUART1_TX, 0x10B0U); IOMUXC_SetPinConfig(IOMUXC_GPIO_AD_B0_13_LPUART1_RX, 0x10B0U); } diff --git a/board/pin_mux.c.bak b/board/pin_mux.c.bak index 1df2580..0a3f171 100644 --- a/board/pin_mux.c.bak +++ b/board/pin_mux.c.bak @@ -10,7 +10,7 @@ product: Pins v9.0 processor: MIMXRT1052xxxxB package_id: MIMXRT1052DVL6B mcu_data: ksdk2_0 -processor_version: 9.0.0 +processor_version: 9.0.1 board: IMXRT1050-EVKB pin_labels: - {pin_num: M11, pin_signal: GPIO_AD_B0_02, label: LCDIF_RESET, identifier: LCDIF_RESEt;LCDIF_RESET} diff --git a/board/pin_mux.h b/board/pin_mux.h index ff26e9d..399f85e 100644 --- a/board/pin_mux.h +++ b/board/pin_mux.h @@ -538,6 +538,20 @@ void BOARD_InitBootPins(void); #define BOARD_INITPINS_SD1_D0_SIGNAL usdhc_data /*!< Signal name */ #define BOARD_INITPINS_SD1_D0_CHANNEL 0U /*!< Signal channel */ +/* GPIO_AD_B0_03 (coord G11), USB_OTG1_OC/J24[1] */ +/* Routed pin properties */ +#define BOARD_INITPINS_SD1_CD_PERIPHERAL GPIO1 /*!< Peripheral name */ +#define BOARD_INITPINS_SD1_CD_SIGNAL gpio_io /*!< Signal name */ +#define BOARD_INITPINS_SD1_CD_CHANNEL 3U /*!< Signal channel */ + +/* Symbols to be used with GPIO driver */ +#define BOARD_INITPINS_SD1_CD_GPIO GPIO1 /*!< GPIO peripheral base pointer */ +#define BOARD_INITPINS_SD1_CD_GPIO_PIN 3U /*!< GPIO pin number */ +#define BOARD_INITPINS_SD1_CD_GPIO_PIN_MASK (1U << 3U) /*!< GPIO pin mask */ +#define BOARD_INITPINS_SD1_CD_PORT GPIO1 /*!< PORT peripheral base pointer */ +#define BOARD_INITPINS_SD1_CD_PIN 3U /*!< PORT pin number */ +#define BOARD_INITPINS_SD1_CD_PIN_MASK (1U << 3U) /*!< PORT pin mask */ + /*! * @brief Configures pin routing and optionally pin electrical features. diff --git a/board/pin_mux.h.bak b/board/pin_mux.h.bak index b6cd6ef..ff26e9d 100644 --- a/board/pin_mux.h.bak +++ b/board/pin_mux.h.bak @@ -499,6 +499,45 @@ void BOARD_InitBootPins(void); #define BOARD_INITPINS_ENET_CRS_DV_PERIPHERAL ENET /*!< Peripheral name */ #define BOARD_INITPINS_ENET_CRS_DV_SIGNAL enet_rx_en /*!< Signal name */ +/* GPIO_B1_14 (coord C14), SD0_VSELECT */ +/* Routed pin properties */ +#define BOARD_INITPINS_SD0_VSELECT_PERIPHERAL USDHC1 /*!< Peripheral name */ +#define BOARD_INITPINS_SD0_VSELECT_SIGNAL usdhc_vselect /*!< Signal name */ + +/* GPIO_SD_B0_01 (coord J3), SD1_CLK/J24[3] */ +/* Routed pin properties */ +#define BOARD_INITPINS_SD1_CLK_PERIPHERAL USDHC1 /*!< Peripheral name */ +#define BOARD_INITPINS_SD1_CLK_SIGNAL usdhc_clk /*!< Signal name */ + +/* GPIO_SD_B0_00 (coord J4), SD1_CMD/J24[6] */ +/* Routed pin properties */ +#define BOARD_INITPINS_SD1_CMD_PERIPHERAL USDHC1 /*!< Peripheral name */ +#define BOARD_INITPINS_SD1_CMD_SIGNAL usdhc_cmd /*!< Signal name */ + +/* GPIO_SD_B0_03 (coord K1), SD1_D1/J24[5]/SPI_MISO */ +/* Routed pin properties */ +#define BOARD_INITPINS_SD1_D1_PERIPHERAL USDHC1 /*!< Peripheral name */ +#define BOARD_INITPINS_SD1_D1_SIGNAL usdhc_data /*!< Signal name */ +#define BOARD_INITPINS_SD1_D1_CHANNEL 1U /*!< Signal channel */ + +/* GPIO_SD_B0_04 (coord H2), SD1_D2 */ +/* Routed pin properties */ +#define BOARD_INITPINS_SD1_D2_PERIPHERAL USDHC1 /*!< Peripheral name */ +#define BOARD_INITPINS_SD1_D2_SIGNAL usdhc_data /*!< Signal name */ +#define BOARD_INITPINS_SD1_D2_CHANNEL 2U /*!< Signal channel */ + +/* GPIO_SD_B0_05 (coord J2), SD1_D3 */ +/* Routed pin properties */ +#define BOARD_INITPINS_SD1_D3_PERIPHERAL USDHC1 /*!< Peripheral name */ +#define BOARD_INITPINS_SD1_D3_SIGNAL usdhc_data /*!< Signal name */ +#define BOARD_INITPINS_SD1_D3_CHANNEL 3U /*!< Signal channel */ + +/* GPIO_SD_B0_02 (coord J1), SD1_D0/J24[4]/SPI_MOSI/PWM */ +/* Routed pin properties */ +#define BOARD_INITPINS_SD1_D0_PERIPHERAL USDHC1 /*!< Peripheral name */ +#define BOARD_INITPINS_SD1_D0_SIGNAL usdhc_data /*!< Signal name */ +#define BOARD_INITPINS_SD1_D0_CHANNEL 0U /*!< Signal channel */ + /*! * @brief Configures pin routing and optionally pin electrical features. diff --git a/imxrt1050.cfg b/imxrt1050.cfg index 8ee0290..7e6e36f 100644 --- a/imxrt1050.cfg +++ b/imxrt1050.cfg @@ -27,7 +27,7 @@ set _TARGETNAME $_CHIPNAME dap create $_TARGETNAME.dap -chain-position $_TARGETNAME.cpu target create $_TARGETNAME cortex_m -dap $_TARGETNAME.dap -$_TARGETNAME configure -rtos auto +# $_TARGETNAME configure -rtos auto cortex_m reset_config sysresetreq diff --git a/middleware/fatfs/LICENSE.txt b/middleware/fatfs/LICENSE.txt new file mode 100644 index 0000000..467e2a2 --- /dev/null +++ b/middleware/fatfs/LICENSE.txt @@ -0,0 +1,24 @@ +FatFs License + +FatFs has being developped as a personal project of the author, ChaN. It is free from the code anyone else wrote at current release. Following code block shows a copy of the FatFs license document that heading the source files. + +/*----------------------------------------------------------------------------/ +/ FatFs - Generic FAT Filesystem Module Rx.xx / +/-----------------------------------------------------------------------------/ +/ +/ Copyright (C) 20xx, ChaN, all right reserved. +/ +/ FatFs module is an open source software. Redistribution and use of FatFs in +/ source and binary forms, with or without modification, are permitted provided +/ that the following condition is met: +/ +/ 1. Redistributions of source code must retain the above copyright notice, +/ this condition and the following disclaimer. +/ +/ This software is provided by the copyright holder and contributors "AS IS" +/ and any warranties related to this software are DISCLAIMED. +/ The copyright owner or contributors be NOT LIABLE for any damages caused +/ by use of this software. +/----------------------------------------------------------------------------*/ + +Therefore FatFs license is one of the BSD-style licenses but there is a significant feature. FatFs is mainly intended for embedded systems. In order to extend the usability for commercial products, the redistributions of FatFs in binary form, such as embedded code, binary library and any forms without source code, does not need to include about FatFs in the documentations. This is equivalent to the 1-clause BSD license. Of course FatFs is compatible with the most of open source software licenses including GNU GPL. When you redistribute the FatFs source code with any changes or create a fork, the license can also be changed to GNU GPL, BSD-style license or any open source software license that not conflict with FatFs license. diff --git a/middleware/fatfs/source/00history.txt b/middleware/fatfs/source/00history.txt new file mode 100644 index 0000000..cb8753b --- /dev/null +++ b/middleware/fatfs/source/00history.txt @@ -0,0 +1,340 @@ +---------------------------------------------------------------------------- + Revision history of FatFs module +---------------------------------------------------------------------------- + +R0.00 (February 26, 2006) + + Prototype. + + + +R0.01 (April 29, 2006) + + The first release. + + + +R0.02 (June 01, 2006) + + Added FAT12 support. + Removed unbuffered mode. + Fixed a problem on small (<32M) partition. + + + +R0.02a (June 10, 2006) + + Added a configuration option (_FS_MINIMUM). + + + +R0.03 (September 22, 2006) + + Added f_rename(). + Changed option _FS_MINIMUM to _FS_MINIMIZE. + + + +R0.03a (December 11, 2006) + + Improved cluster scan algorithm to write files fast. + Fixed f_mkdir() creates incorrect directory on FAT32. + + + +R0.04 (February 04, 2007) + + Added f_mkfs(). + Supported multiple drive system. + Changed some interfaces for multiple drive system. + Changed f_mountdrv() to f_mount(). + + + +R0.04a (April 01, 2007) + + Supported multiple partitions on a physical drive. + Added a capability of extending file size to f_lseek(). + Added minimization level 3. + Fixed an endian sensitive code in f_mkfs(). + + + +R0.04b (May 05, 2007) + + Added a configuration option _USE_NTFLAG. + Added FSINFO support. + Fixed DBCS name can result FR_INVALID_NAME. + Fixed short seek (<= csize) collapses the file object. + + + +R0.05 (August 25, 2007) + + Changed arguments of f_read(), f_write() and f_mkfs(). + Fixed f_mkfs() on FAT32 creates incorrect FSINFO. + Fixed f_mkdir() on FAT32 creates incorrect directory. + + + +R0.05a (February 03, 2008) + + Added f_truncate() and f_utime(). + Fixed off by one error at FAT sub-type determination. + Fixed btr in f_read() can be mistruncated. + Fixed cached sector is not flushed when create and close without write. + + + +R0.06 (April 01, 2008) + + Added fputc(), fputs(), fprintf() and fgets(). + Improved performance of f_lseek() on moving to the same or following cluster. + + + +R0.07 (April 01, 2009) + + Merged Tiny-FatFs as a configuration option. (_FS_TINY) + Added long file name feature. (_USE_LFN) + Added multiple code page feature. (_CODE_PAGE) + Added re-entrancy for multitask operation. (_FS_REENTRANT) + Added auto cluster size selection to f_mkfs(). + Added rewind option to f_readdir(). + Changed result code of critical errors. + Renamed string functions to avoid name collision. + + + +R0.07a (April 14, 2009) + + Septemberarated out OS dependent code on reentrant cfg. + Added multiple sector size feature. + + + +R0.07c (June 21, 2009) + + Fixed f_unlink() can return FR_OK on error. + Fixed wrong cache control in f_lseek(). + Added relative path feature. + Added f_chdir() and f_chdrive(). + Added proper case conversion to extended character. + + + +R0.07e (November 03, 2009) + + Septemberarated out configuration options from ff.h to ffconf.h. + Fixed f_unlink() fails to remove a sub-directory on _FS_RPATH. + Fixed name matching error on the 13 character boundary. + Added a configuration option, _LFN_UNICODE. + Changed f_readdir() to return the SFN with always upper case on non-LFN cfg. + + + +R0.08 (May 15, 2010) + + Added a memory configuration option. (_USE_LFN = 3) + Added file lock feature. (_FS_SHARE) + Added fast seek feature. (_USE_FASTSEEK) + Changed some types on the API, XCHAR->TCHAR. + Changed .fname in the FILINFO structure on Unicode cfg. + String functions support UTF-8 encoding files on Unicode cfg. + + + +R0.08a (August 16, 2010) + + Added f_getcwd(). (_FS_RPATH = 2) + Added sector erase feature. (_USE_ERASE) + Moved file lock semaphore table from fs object to the bss. + Fixed f_mkfs() creates wrong FAT32 volume. + + + +R0.08b (January 15, 2011) + + Fast seek feature is also applied to f_read() and f_write(). + f_lseek() reports required table size on creating CLMP. + Extended format syntax of f_printf(). + Ignores duplicated directory separators in given path name. + + + +R0.09 (September 06, 2011) + + f_mkfs() supports multiple partition to complete the multiple partition feature. + Added f_fdisk(). + + + +R0.09a (August 27, 2012) + + Changed f_open() and f_opendir() reject null object pointer to avoid crash. + Changed option name _FS_SHARE to _FS_LOCK. + Fixed assertion failure due to OS/2 EA on FAT12/16 volume. + + + +R0.09b (January 24, 2013) + + Added f_setlabel() and f_getlabel(). + + + +R0.10 (October 02, 2013) + + Added selection of character encoding on the file. (_STRF_ENCODE) + Added f_closedir(). + Added forced full FAT scan for f_getfree(). (_FS_NOFSINFO) + Added forced mount feature with changes of f_mount(). + Improved behavior of volume auto detection. + Improved write throughput of f_puts() and f_printf(). + Changed argument of f_chdrive(), f_mkfs(), disk_read() and disk_write(). + Fixed f_write() can be truncated when the file size is close to 4GB. + Fixed f_open(), f_mkdir() and f_setlabel() can return incorrect value on error. + + + +R0.10a (January 15, 2014) + + Added arbitrary strings as drive number in the path name. (_STR_VOLUME_ID) + Added a configuration option of minimum sector size. (_MIN_SS) + 2nd argument of f_rename() can have a drive number and it will be ignored. + Fixed f_mount() with forced mount fails when drive number is >= 1. (appeared at R0.10) + Fixed f_close() invalidates the file object without volume lock. + Fixed f_closedir() returns but the volume lock is left acquired. (appeared at R0.10) + Fixed creation of an entry with LFN fails on too many SFN collisions. (appeared at R0.07) + + + +R0.10b (May 19, 2014) + + Fixed a hard error in the disk I/O layer can collapse the directory entry. + Fixed LFN entry is not deleted when delete/rename an object with lossy converted SFN. (appeared at R0.07) + + + +R0.10c (November 09, 2014) + + Added a configuration option for the platforms without RTC. (_FS_NORTC) + Changed option name _USE_ERASE to _USE_TRIM. + Fixed volume label created by Mac OS X cannot be retrieved with f_getlabel(). (appeared at R0.09b) + Fixed a potential problem of FAT access that can appear on disk error. + Fixed null pointer dereference on attempting to delete the root direcotry. (appeared at R0.08) + + + +R0.11 (February 09, 2015) + + Added f_findfirst(), f_findnext() and f_findclose(). (_USE_FIND) + Fixed f_unlink() does not remove cluster chain of the file. (appeared at R0.10c) + Fixed _FS_NORTC option does not work properly. (appeared at R0.10c) + + + +R0.11a (September 05, 2015) + + Fixed wrong media change can lead a deadlock at thread-safe configuration. + Added code page 771, 860, 861, 863, 864, 865 and 869. (_CODE_PAGE) + Removed some code pages actually not exist on the standard systems. (_CODE_PAGE) + Fixed errors in the case conversion teble of code page 437 and 850 (ff.c). + Fixed errors in the case conversion teble of Unicode (cc*.c). + + + +R0.12 (April 12, 2016) + + Added support for exFAT file system. (_FS_EXFAT) + Added f_expand(). (_USE_EXPAND) + Changed some members in FINFO structure and behavior of f_readdir(). + Added an option _USE_CHMOD. + Removed an option _WORD_ACCESS. + Fixed errors in the case conversion table of Unicode (cc*.c). + + + +R0.12a (July 10, 2016) + + Added support for creating exFAT volume with some changes of f_mkfs(). + Added a file open method FA_OPEN_APPEND. An f_lseek() following f_open() is no longer needed. + f_forward() is available regardless of _FS_TINY. + Fixed f_mkfs() creates wrong volume. (appeared at R0.12) + Fixed wrong memory read in create_name(). (appeared at R0.12) + Fixed compilation fails at some configurations, _USE_FASTSEEK and _USE_FORWARD. + + + +R0.12b (September 04, 2016) + + Made f_rename() be able to rename objects with the same name but case. + Fixed an error in the case conversion teble of code page 866. (ff.c) + Fixed writing data is truncated at the file offset 4GiB on the exFAT volume. (appeared at R0.12) + Fixed creating a file in the root directory of exFAT volume can fail. (appeared at R0.12) + Fixed f_mkfs() creating exFAT volume with too small cluster size can collapse unallocated memory. (appeared at R0.12) + Fixed wrong object name can be returned when read directory at Unicode cfg. (appeared at R0.12) + Fixed large file allocation/removing on the exFAT volume collapses allocation bitmap. (appeared at R0.12) + Fixed some internal errors in f_expand() and f_lseek(). (appeared at R0.12) + + + +R0.12c (March 04, 2017) + + Improved write throughput at the fragmented file on the exFAT volume. + Made memory usage for exFAT be able to be reduced as decreasing _MAX_LFN. + Fixed successive f_getfree() can return wrong count on the FAT12/16 volume. (appeared at R0.12) + Fixed configuration option _VOLUMES cannot be set 10. (appeared at R0.10c) + + + +R0.13 (May 21, 2017) + + Changed heading character of configuration keywords "_" to "FF_". + Removed ASCII-only configuration, FF_CODE_PAGE = 1. Use FF_CODE_PAGE = 437 instead. + Added f_setcp(), run-time code page configuration. (FF_CODE_PAGE = 0) + Improved cluster allocation time on stretch a deep buried cluster chain. + Improved processing time of f_mkdir() with large cluster size by using FF_USE_LFN = 3. + Improved NoFatChain flag of the fragmented file to be set after it is truncated and got contiguous. + Fixed archive attribute is left not set when a file on the exFAT volume is renamed. (appeared at R0.12) + Fixed exFAT FAT entry can be collapsed when write or lseek operation to the existing file is done. (appeared at R0.12c) + Fixed creating a file can fail when a new cluster allocation to the exFAT directory occures. (appeared at R0.12c) + + + +R0.13a (October 14, 2017) + + Added support for UTF-8 encoding on the API. (FF_LFN_UNICODE = 2) + Added options for file name output buffer. (FF_LFN_BUF, FF_SFN_BUF). + Added dynamic memory allocation option for working buffer of f_mkfs() and f_fdisk(). + Fixed f_fdisk() and f_mkfs() create the partition table with wrong CHS parameters. (appeared at R0.09) + Fixed f_unlink() can cause lost clusters at fragmented file on the exFAT volume. (appeared at R0.12c) + Fixed f_setlabel() rejects some valid characters for exFAT volume. (appeared at R0.12) + + + +R0.13b (April 07, 2018) + + Added support for UTF-32 encoding on the API. (FF_LFN_UNICODE = 3) + Added support for Unix style volume ID. (FF_STR_VOLUME_ID = 2) + Fixed accesing any object on the exFAT root directory beyond the cluster boundary can fail. (appeared at R0.12c) + Fixed f_setlabel() does not reject some invalid characters. (appeared at R0.09b) + + + +R0.13c (October 14, 2018) + Supported stdint.h for C99 and later. (integer.h was included in ff.h) + Fixed reading a directory gets infinite loop when the last directory entry is not empty. (appeared at R0.12) + Fixed creating a sub-directory in the fragmented sub-directory on the exFAT volume collapses FAT chain of the parent directory. (appeared at R0.12) + Fixed f_getcwd() cause output buffer overrun when the buffer has a valid drive number. (appeared at R0.13b) + + + +R0.14 (October 14, 2019) + Added support for 64-bit LBA and GUID partition table (FF_LBA64 = 1) + Changed some API functions, f_mkfs() and f_fdisk(). + Fixed f_open() function cannot find the file with file name in length of FF_MAX_LFN characters. + Fixed f_readdir() function cannot retrieve long file names in length of FF_MAX_LFN - 1 characters. + Fixed f_readdir() function returns file names with wrong case conversion. (appeared at R0.12) + Fixed f_mkfs() function can fail to create exFAT volume in the second partition. (appeared at R0.12) + diff --git a/middleware/fatfs/source/00readme.txt b/middleware/fatfs/source/00readme.txt new file mode 100644 index 0000000..234c675 --- /dev/null +++ b/middleware/fatfs/source/00readme.txt @@ -0,0 +1,21 @@ +FatFs Module Source Files R0.14 + + +FILES + + 00readme.txt This file. + 00history.txt Revision history. + ff.c FatFs module. + ffconf.h Configuration file of FatFs module. + ff.h Common include file for FatFs and application module. + diskio.h Common include file for FatFs and disk I/O module. + diskio.c An example of glue function to attach existing disk I/O module to FatFs. + ffunicode.c Optional Unicode utility functions. + ffsystem.c An example of optional O/S related functions. + + + Low level disk I/O module is not included in this archive because the FatFs + module is only a generic file system layer and it does not depend on any specific + storage device. You need to provide a low level disk I/O module written to + control the storage device that attached to the target system. + diff --git a/middleware/fatfs/source/diskio.c b/middleware/fatfs/source/diskio.c new file mode 100644 index 0000000..62e8f9c --- /dev/null +++ b/middleware/fatfs/source/diskio.c @@ -0,0 +1,301 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/*-----------------------------------------------------------------------*/ +/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2019 */ +/*-----------------------------------------------------------------------*/ +/* If a working storage control module is available, it should be */ +/* attached to the FatFs via a glue function rather than modifying it. */ +/* This is an example of glue functions to attach various exsisting */ +/* storage control modules to the FatFs module with a defined API. */ +/*-----------------------------------------------------------------------*/ +#include "ffconf.h" /* FatFs configuration options */ +#include "ff.h" /* Obtains integer types */ +#include "diskio.h" /* Declarations of disk functions */ + +#ifdef RAM_DISK_ENABLE +#include "fsl_ram_disk.h" +#endif + +#ifdef USB_DISK_ENABLE +#include "fsl_usb_disk.h" +#endif + +#ifdef SD_DISK_ENABLE +#include "fsl_sd_disk.h" +#endif + +#ifdef MMC_DISK_ENABLE +#include "fsl_mmc_disk.h" +#endif + +#ifdef SDSPI_DISK_ENABLE +#include "fsl_sdspi_disk.h" +#endif + +#ifdef NAND_DISK_ENABLE +#include "fsl_nand_disk.h" +#endif + +/*-----------------------------------------------------------------------*/ +/* Get Drive Status */ +/*-----------------------------------------------------------------------*/ + +DSTATUS disk_status ( + BYTE pdrv /* Physical drive nmuber to identify the drive */ +) +{ + DSTATUS stat; + switch (pdrv) + { +#ifdef RAM_DISK_ENABLE + case RAMDISK: + stat = ram_disk_status(pdrv); + return stat; +#endif +#ifdef USB_DISK_ENABLE + case USBDISK: + stat = USB_HostMsdGetDiskStatus(pdrv); + return stat; +#endif +#ifdef SD_DISK_ENABLE + case SDDISK: + stat = sd_disk_status(pdrv); + return stat; +#endif +#ifdef MMC_DISK_ENABLE + case MMCDISK: + stat = mmc_disk_status(pdrv); + return stat; +#endif +#ifdef SDSPI_DISK_ENABLE + case SDSPIDISK: + stat = sdspi_disk_status(pdrv); + return stat; +#endif +#ifdef NAND_DISK_ENABLE + case NANDDISK: + stat = nand_disk_status(pdrv); + return stat; +#endif + default: + break; + } + return STA_NOINIT; +} + + + +/*-----------------------------------------------------------------------*/ +/* Inidialize a Drive */ +/*-----------------------------------------------------------------------*/ + +DSTATUS disk_initialize ( + BYTE pdrv /* Physical drive nmuber to identify the drive */ +) +{ + DSTATUS stat; + switch (pdrv) + { +#ifdef RAM_DISK_ENABLE + case RAMDISK: + stat = ram_disk_initialize(pdrv); + return stat; +#endif +#ifdef USB_DISK_ENABLE + case USBDISK: + stat = USB_HostMsdInitializeDisk(pdrv); + return stat; +#endif +#ifdef SD_DISK_ENABLE + case SDDISK: + stat = sd_disk_initialize(pdrv); + return stat; +#endif +#ifdef MMC_DISK_ENABLE + case MMCDISK: + stat = mmc_disk_initialize(pdrv); + return stat; +#endif +#ifdef SDSPI_DISK_ENABLE + case SDSPIDISK: + stat = sdspi_disk_initialize(pdrv); + return stat; +#endif + +#ifdef NAND_DISK_ENABLE + case NANDDISK: + stat = nand_disk_initialize(pdrv); + return stat; +#endif + default: + break; + } + return STA_NOINIT; +} + + + +/*-----------------------------------------------------------------------*/ +/* Read Sector(s) */ +/*-----------------------------------------------------------------------*/ + +DRESULT disk_read ( + BYTE pdrv, /* Physical drive nmuber to identify the drive */ + BYTE *buff, /* Data buffer to store read data */ + LBA_t sector, /* Start sector in LBA */ + UINT count /* Number of sectors to read */ +) +{ + DRESULT res; + switch (pdrv) + { +#ifdef RAM_DISK_ENABLE + case RAMDISK: + res = ram_disk_read(pdrv, buff, sector, count); + return res; +#endif +#ifdef USB_DISK_ENABLE + case USBDISK: + res = USB_HostMsdReadDisk(pdrv, buff, sector, count); + return res; +#endif +#ifdef SD_DISK_ENABLE + case SDDISK: + res = sd_disk_read(pdrv, buff, sector, count); + return res; +#endif +#ifdef MMC_DISK_ENABLE + case MMCDISK: + res = mmc_disk_read(pdrv, buff, sector, count); + return res; +#endif +#ifdef SDSPI_DISK_ENABLE + case SDSPIDISK: + res = sdspi_disk_read(pdrv, buff, sector, count); + return res; +#endif + +#ifdef NAND_DISK_ENABLE + case NANDDISK: + res = nand_disk_read(pdrv, buff, sector, count); + return res; +#endif + default: + break; + } + + return RES_PARERR; +} + + + +/*-----------------------------------------------------------------------*/ +/* Write Sector(s) */ +/*-----------------------------------------------------------------------*/ + +#if FF_FS_READONLY == 0 +DRESULT disk_write ( + BYTE pdrv, /* Physical drive nmuber to identify the drive */ + const BYTE *buff, /* Data to be written */ + LBA_t sector, /* Start sector in LBA */ + UINT count /* Number of sectors to write */ +) +{ + DRESULT res; + switch (pdrv) + { +#ifdef RAM_DISK_ENABLE + case RAMDISK: + res = ram_disk_write(pdrv, buff, sector, count); + return res; +#endif +#ifdef USB_DISK_ENABLE + case USBDISK: + res = USB_HostMsdWriteDisk(pdrv, buff, sector, count); + return res; +#endif +#ifdef SD_DISK_ENABLE + case SDDISK: + res = sd_disk_write(pdrv, buff, sector, count); + return res; +#endif +#ifdef MMC_DISK_ENABLE + case MMCDISK: + res = mmc_disk_write(pdrv, buff, sector, count); + return res; +#endif +#ifdef SDSPI_DISK_ENABLE + case SDSPIDISK: + res = sdspi_disk_write(pdrv, buff, sector, count); + return res; +#endif + +#ifdef NAND_DISK_ENABLE + case NANDDISK: + res = nand_disk_write(pdrv, buff, sector, count); + return res; +#endif + default: + break; + } + return RES_PARERR; +} +#endif + + +/*-----------------------------------------------------------------------*/ +/* Miscellaneous Functions */ +/*-----------------------------------------------------------------------*/ + +DRESULT disk_ioctl ( + BYTE pdrv, /* Physical drive nmuber (0..) */ + BYTE cmd, /* Control code */ + void *buff /* Buffer to send/receive control data */ +) +{ + DRESULT res; + switch (pdrv) + { +#ifdef RAM_DISK_ENABLE + case RAMDISK: + res = ram_disk_ioctl(pdrv, cmd, buff); + return res; +#endif +#ifdef USB_DISK_ENABLE + case USBDISK: + res = USB_HostMsdIoctlDisk(pdrv, cmd, buff); + return res; +#endif +#ifdef SD_DISK_ENABLE + case SDDISK: + res = sd_disk_ioctl(pdrv, cmd, buff); + return res; +#endif +#ifdef MMC_DISK_ENABLE + case MMCDISK: + res = mmc_disk_ioctl(pdrv, cmd, buff); + return res; +#endif +#ifdef SDSPI_DISK_ENABLE + case SDSPIDISK: + res = sdspi_disk_ioctl(pdrv, cmd, buff); + return res; +#endif + +#ifdef NAND_DISK_ENABLE + case NANDDISK: + res = nand_disk_ioctl(pdrv, cmd, buff); + return res; +#endif + default: + break; + } + return RES_PARERR; +} + diff --git a/middleware/fatfs/source/diskio.h b/middleware/fatfs/source/diskio.h new file mode 100644 index 0000000..8b3b224 --- /dev/null +++ b/middleware/fatfs/source/diskio.h @@ -0,0 +1,85 @@ +/*-----------------------------------------------------------------------/ +/ Low level disk interface modlue include file (C)ChaN, 2019 / +/-----------------------------------------------------------------------*/ + +#ifndef _DISKIO_DEFINED +#define _DISKIO_DEFINED + +#ifdef __cplusplus +extern "C" { +#endif + +/* Definitions of physical drive number for each drive */ +#define RAMDISK 0 /* Example: ram disk to physical drive 0 */ +#define USBDISK 1 /* usb disk to physical drive 1 */ +#define SDDISK 2 /* sd disk to physical drive 2 */ +#define MMCDISK 3 /* mmc disk to physical drive 3 */ +#define SDSPIDISK 4 /* sdspi disk to physical drive 4 */ +#define NANDDISK 5 /* nand disk to physical drive 5 */ + +/* Status of Disk Functions */ +typedef BYTE DSTATUS; + +/* Results of Disk Functions */ +typedef enum { + RES_OK = 0, /* 0: Successful */ + RES_ERROR, /* 1: R/W Error */ + RES_WRPRT, /* 2: Write Protected */ + RES_NOTRDY, /* 3: Not Ready */ + RES_PARERR /* 4: Invalid Parameter */ +} DRESULT; + + +/*---------------------------------------*/ +/* Prototypes for disk control functions */ + + +DSTATUS disk_initialize (BYTE pdrv); +DSTATUS disk_status (BYTE pdrv); +DRESULT disk_read (BYTE pdrv, BYTE* buff, LBA_t sector, UINT count); +DRESULT disk_write (BYTE pdrv, const BYTE* buff, LBA_t sector, UINT count); +DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff); + + +/* Disk Status Bits (DSTATUS) */ + +#define STA_NOINIT 0x01 /* Drive not initialized */ +#define STA_NODISK 0x02 /* No medium in the drive */ +#define STA_PROTECT 0x04 /* Write protected */ + + +/* Command code for disk_ioctrl fucntion */ + +/* Generic command (Used by FatFs) */ +#define CTRL_SYNC 0 /* Complete pending write process (needed at FF_FS_READONLY == 0) */ +#define GET_SECTOR_COUNT 1 /* Get media size (needed at FF_USE_MKFS == 1) */ +#define GET_SECTOR_SIZE 2 /* Get sector size (needed at FF_MAX_SS != FF_MIN_SS) */ +#define GET_BLOCK_SIZE 3 /* Get erase block size (needed at FF_USE_MKFS == 1) */ +#define CTRL_TRIM 4 /* Inform device that the data on the block of sectors is no longer used (needed at FF_USE_TRIM == 1) */ + +/* Generic command (Not used by FatFs) */ +#define CTRL_POWER 5 /* Get/Set power status */ +#define CTRL_LOCK 6 /* Lock/Unlock media removal */ +#define CTRL_EJECT 7 /* Eject media */ +#define CTRL_FORMAT 8 /* Create physical format on the media */ + +/* MMC/SDC specific ioctl command */ +#define MMC_GET_TYPE 10 /* Get card type */ +#define MMC_GET_CSD 11 /* Get CSD */ +#define MMC_GET_CID 12 /* Get CID */ +#define MMC_GET_OCR 13 /* Get OCR */ +#define MMC_GET_SDSTAT 14 /* Get SD status */ +#define ISDIO_READ 55 /* Read data form SD iSDIO register */ +#define ISDIO_WRITE 56 /* Write data to SD iSDIO register */ +#define ISDIO_MRITE 57 /* Masked write data to SD iSDIO register */ + +/* ATA/CF specific ioctl command */ +#define ATA_GET_REV 20 /* Get F/W revision */ +#define ATA_GET_MODEL 21 /* Get model name */ +#define ATA_GET_SN 22 /* Get serial number */ + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/middleware/fatfs/source/ff.c b/middleware/fatfs/source/ff.c new file mode 100644 index 0000000..7ea1e53 --- /dev/null +++ b/middleware/fatfs/source/ff.c @@ -0,0 +1,6861 @@ +/*----------------------------------------------------------------------------/ +/ FatFs - Generic FAT Filesystem Module R0.14 / +/-----------------------------------------------------------------------------/ +/ +/ Copyright (C) 2019, ChaN, all right reserved. +/ +/ FatFs module is an open source software. Redistribution and use of FatFs in +/ source and binary forms, with or without modification, are permitted provided +/ that the following condition is met: +/ +/ 1. Redistributions of source code must retain the above copyright notice, +/ this condition and the following disclaimer. +/ +/ This software is provided by the copyright holder and contributors "AS IS" +/ and any warranties related to this software are DISCLAIMED. +/ The copyright owner or contributors be NOT LIABLE for any damages caused +/ by use of this software. +/ +/----------------------------------------------------------------------------*/ + + +#include "ff.h" /* Declarations of FatFs API */ +#include "diskio.h" /* Declarations of device I/O functions */ + + +/*-------------------------------------------------------------------------- + + Module Private Definitions + +---------------------------------------------------------------------------*/ + +#if FF_DEFINED != 86606 /* Revision ID */ +#error Wrong include file (ff.h). +#endif + + +/* Limits and boundaries */ +#define MAX_DIR 0x200000 /* Max size of FAT directory */ +#define MAX_DIR_EX 0x10000000 /* Max size of exFAT directory */ +#define MAX_FAT12 0xFF5 /* Max FAT12 clusters (differs from specs, but right for real DOS/Windows behavior) */ +#define MAX_FAT16 0xFFF5 /* Max FAT16 clusters (differs from specs, but right for real DOS/Windows behavior) */ +#define MAX_FAT32 0x0FFFFFF5 /* Max FAT32 clusters (not specified, practical limit) */ +#define MAX_EXFAT 0x7FFFFFFD /* Max exFAT clusters (differs from specs, implementation limit) */ + + +/* Character code support macros */ +#define IsUpper(c) ((c) >= 'A' && (c) <= 'Z') +#define IsLower(c) ((c) >= 'a' && (c) <= 'z') +#define IsDigit(c) ((c) >= '0' && (c) <= '9') +#define IsSurrogate(c) ((c) >= 0xD800 && (c) <= 0xDFFF) +#define IsSurrogateH(c) ((c) >= 0xD800 && (c) <= 0xDBFF) +#define IsSurrogateL(c) ((c) >= 0xDC00 && (c) <= 0xDFFF) + + +/* Additional file access control and file status flags for internal use */ +#define FA_SEEKEND 0x20 /* Seek to end of the file on file open */ +#define FA_MODIFIED 0x40 /* File has been modified */ +#define FA_DIRTY 0x80 /* FIL.buf[] needs to be written-back */ + + +/* Additional file attribute bits for internal use */ +#define AM_VOL 0x08 /* Volume label */ +#define AM_LFN 0x0F /* LFN entry */ +#define AM_MASK 0x3F /* Mask of defined bits */ + + +/* Name status flags in fn[11] */ +#define NSFLAG 11 /* Index of the name status byte */ +#define NS_LOSS 0x01 /* Out of 8.3 format */ +#define NS_LFN 0x02 /* Force to create LFN entry */ +#define NS_LAST 0x04 /* Last segment */ +#define NS_BODY 0x08 /* Lower case flag (body) */ +#define NS_EXT 0x10 /* Lower case flag (ext) */ +#define NS_DOT 0x20 /* Dot entry */ +#define NS_NOLFN 0x40 /* Do not find LFN */ +#define NS_NONAME 0x80 /* Not followed */ + + +/* exFAT directory entry types */ +#define ET_BITMAP 0x81 /* Allocation bitmap */ +#define ET_UPCASE 0x82 /* Up-case table */ +#define ET_VLABEL 0x83 /* Volume label */ +#define ET_FILEDIR 0x85 /* File and directory */ +#define ET_STREAM 0xC0 /* Stream extension */ +#define ET_FILENAME 0xC1 /* Name extension */ + + +/* FatFs refers the FAT structure as simple byte array instead of structure member +/ because the C structure is not binary compatible between different platforms */ + +#define BS_JmpBoot 0 /* x86 jump instruction (3-byte) */ +#define BS_OEMName 3 /* OEM name (8-byte) */ +#define BPB_BytsPerSec 11 /* Sector size [byte] (WORD) */ +#define BPB_SecPerClus 13 /* Cluster size [sector] (BYTE) */ +#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (WORD) */ +#define BPB_NumFATs 16 /* Number of FATs (BYTE) */ +#define BPB_RootEntCnt 17 /* Size of root directory area for FAT [entry] (WORD) */ +#define BPB_TotSec16 19 /* Volume size (16-bit) [sector] (WORD) */ +#define BPB_Media 21 /* Media descriptor byte (BYTE) */ +#define BPB_FATSz16 22 /* FAT size (16-bit) [sector] (WORD) */ +#define BPB_SecPerTrk 24 /* Number of sectors per track for int13h [sector] (WORD) */ +#define BPB_NumHeads 26 /* Number of heads for int13h (WORD) */ +#define BPB_HiddSec 28 /* Volume offset from top of the drive (DWORD) */ +#define BPB_TotSec32 32 /* Volume size (32-bit) [sector] (DWORD) */ +#define BS_DrvNum 36 /* Physical drive number for int13h (BYTE) */ +#define BS_NTres 37 /* WindowsNT error flag (BYTE) */ +#define BS_BootSig 38 /* Extended boot signature (BYTE) */ +#define BS_VolID 39 /* Volume serial number (DWORD) */ +#define BS_VolLab 43 /* Volume label string (8-byte) */ +#define BS_FilSysType 54 /* Filesystem type string (8-byte) */ +#define BS_BootCode 62 /* Boot code (448-byte) */ +#define BS_55AA 510 /* Signature word (WORD) */ + +#define BPB_FATSz32 36 /* FAT32: FAT size [sector] (DWORD) */ +#define BPB_ExtFlags32 40 /* FAT32: Extended flags (WORD) */ +#define BPB_FSVer32 42 /* FAT32: Filesystem version (WORD) */ +#define BPB_RootClus32 44 /* FAT32: Root directory cluster (DWORD) */ +#define BPB_FSInfo32 48 /* FAT32: Offset of FSINFO sector (WORD) */ +#define BPB_BkBootSec32 50 /* FAT32: Offset of backup boot sector (WORD) */ +#define BS_DrvNum32 64 /* FAT32: Physical drive number for int13h (BYTE) */ +#define BS_NTres32 65 /* FAT32: Error flag (BYTE) */ +#define BS_BootSig32 66 /* FAT32: Extended boot signature (BYTE) */ +#define BS_VolID32 67 /* FAT32: Volume serial number (DWORD) */ +#define BS_VolLab32 71 /* FAT32: Volume label string (8-byte) */ +#define BS_FilSysType32 82 /* FAT32: Filesystem type string (8-byte) */ +#define BS_BootCode32 90 /* FAT32: Boot code (420-byte) */ + +#define BPB_ZeroedEx 11 /* exFAT: MBZ field (53-byte) */ +#define BPB_VolOfsEx 64 /* exFAT: Volume offset from top of the drive [sector] (QWORD) */ +#define BPB_TotSecEx 72 /* exFAT: Volume size [sector] (QWORD) */ +#define BPB_FatOfsEx 80 /* exFAT: FAT offset from top of the volume [sector] (DWORD) */ +#define BPB_FatSzEx 84 /* exFAT: FAT size [sector] (DWORD) */ +#define BPB_DataOfsEx 88 /* exFAT: Data offset from top of the volume [sector] (DWORD) */ +#define BPB_NumClusEx 92 /* exFAT: Number of clusters (DWORD) */ +#define BPB_RootClusEx 96 /* exFAT: Root directory start cluster (DWORD) */ +#define BPB_VolIDEx 100 /* exFAT: Volume serial number (DWORD) */ +#define BPB_FSVerEx 104 /* exFAT: Filesystem version (WORD) */ +#define BPB_VolFlagEx 106 /* exFAT: Volume flags (WORD) */ +#define BPB_BytsPerSecEx 108 /* exFAT: Log2 of sector size in unit of byte (BYTE) */ +#define BPB_SecPerClusEx 109 /* exFAT: Log2 of cluster size in unit of sector (BYTE) */ +#define BPB_NumFATsEx 110 /* exFAT: Number of FATs (BYTE) */ +#define BPB_DrvNumEx 111 /* exFAT: Physical drive number for int13h (BYTE) */ +#define BPB_PercInUseEx 112 /* exFAT: Percent in use (BYTE) */ +#define BPB_RsvdEx 113 /* exFAT: Reserved (7-byte) */ +#define BS_BootCodeEx 120 /* exFAT: Boot code (390-byte) */ + +#define DIR_Name 0 /* Short file name (11-byte) */ +#define DIR_Attr 11 /* Attribute (BYTE) */ +#define DIR_NTres 12 /* Lower case flag (BYTE) */ +#define DIR_CrtTime10 13 /* Created time sub-second (BYTE) */ +#define DIR_CrtTime 14 /* Created time (DWORD) */ +#define DIR_LstAccDate 18 /* Last accessed date (WORD) */ +#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (WORD) */ +#define DIR_ModTime 22 /* Modified time (DWORD) */ +#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (WORD) */ +#define DIR_FileSize 28 /* File size (DWORD) */ +#define LDIR_Ord 0 /* LFN: LFN order and LLE flag (BYTE) */ +#define LDIR_Attr 11 /* LFN: LFN attribute (BYTE) */ +#define LDIR_Type 12 /* LFN: Entry type (BYTE) */ +#define LDIR_Chksum 13 /* LFN: Checksum of the SFN (BYTE) */ +#define LDIR_FstClusLO 26 /* LFN: MBZ field (WORD) */ +#define XDIR_Type 0 /* exFAT: Type of exFAT directory entry (BYTE) */ +#define XDIR_NumLabel 1 /* exFAT: Number of volume label characters (BYTE) */ +#define XDIR_Label 2 /* exFAT: Volume label (11-WORD) */ +#define XDIR_CaseSum 4 /* exFAT: Sum of case conversion table (DWORD) */ +#define XDIR_NumSec 1 /* exFAT: Number of secondary entries (BYTE) */ +#define XDIR_SetSum 2 /* exFAT: Sum of the set of directory entries (WORD) */ +#define XDIR_Attr 4 /* exFAT: File attribute (WORD) */ +#define XDIR_CrtTime 8 /* exFAT: Created time (DWORD) */ +#define XDIR_ModTime 12 /* exFAT: Modified time (DWORD) */ +#define XDIR_AccTime 16 /* exFAT: Last accessed time (DWORD) */ +#define XDIR_CrtTime10 20 /* exFAT: Created time subsecond (BYTE) */ +#define XDIR_ModTime10 21 /* exFAT: Modified time subsecond (BYTE) */ +#define XDIR_CrtTZ 22 /* exFAT: Created timezone (BYTE) */ +#define XDIR_ModTZ 23 /* exFAT: Modified timezone (BYTE) */ +#define XDIR_AccTZ 24 /* exFAT: Last accessed timezone (BYTE) */ +#define XDIR_GenFlags 33 /* exFAT: General secondary flags (BYTE) */ +#define XDIR_NumName 35 /* exFAT: Number of file name characters (BYTE) */ +#define XDIR_NameHash 36 /* exFAT: Hash of file name (WORD) */ +#define XDIR_ValidFileSize 40 /* exFAT: Valid file size (QWORD) */ +#define XDIR_FstClus 52 /* exFAT: First cluster of the file data (DWORD) */ +#define XDIR_FileSize 56 /* exFAT: File/Directory size (QWORD) */ + +#define SZDIRE 32 /* Size of a directory entry */ +#define DDEM 0xE5 /* Deleted directory entry mark set to DIR_Name[0] */ +#define RDDEM 0x05 /* Replacement of the character collides with DDEM */ +#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */ + +#define FSI_LeadSig 0 /* FAT32 FSI: Leading signature (DWORD) */ +#define FSI_StrucSig 484 /* FAT32 FSI: Structure signature (DWORD) */ +#define FSI_Free_Count 488 /* FAT32 FSI: Number of free clusters (DWORD) */ +#define FSI_Nxt_Free 492 /* FAT32 FSI: Last allocated cluster (DWORD) */ + +#define MBR_Table 446 /* MBR: Offset of partition table in the MBR */ +#define SZ_PTE 16 /* MBR: Size of a partition table entry */ +#define PTE_Boot 0 /* MBR PTE: Boot indicator */ +#define PTE_StHead 1 /* MBR PTE: Start head */ +#define PTE_StSec 2 /* MBR PTE: Start sector */ +#define PTE_StCyl 3 /* MBR PTE: Start cylinder */ +#define PTE_System 4 /* MBR PTE: System ID */ +#define PTE_EdHead 5 /* MBR PTE: End head */ +#define PTE_EdSec 6 /* MBR PTE: End sector */ +#define PTE_EdCyl 7 /* MBR PTE: End cylinder */ +#define PTE_StLba 8 /* MBR PTE: Start in LBA */ +#define PTE_SizLba 12 /* MBR PTE: Size in LBA */ + +#define GPTH_Sign 0 /* GPT: Header signature (8-byte) */ +#define GPTH_Rev 8 /* GPT: Revision (DWORD) */ +#define GPTH_Size 12 /* GPT: Header size (DWORD) */ +#define GPTH_Bcc 16 /* GPT: Header BCC (DWORD) */ +#define GPTH_CurLba 24 /* GPT: Main header LBA (QWORD) */ +#define GPTH_BakLba 32 /* GPT: Backup header LBA (QWORD) */ +#define GPTH_FstLba 40 /* GPT: First LBA for partitions (QWORD) */ +#define GPTH_LstLba 48 /* GPT: Last LBA for partitions (QWORD) */ +#define GPTH_DskGuid 56 /* GPT: Disk GUID (16-byte) */ +#define GPTH_PtOfs 72 /* GPT: Partation table LBA (QWORD) */ +#define GPTH_PtNum 80 /* GPT: Number of table entries (DWORD) */ +#define GPTH_PteSize 84 /* GPT: Size of table entry (DWORD) */ +#define GPTH_PtBcc 88 /* GPT: Partation table BCC (DWORD) */ +#define SZ_GPTE 128 /* GPT: Size of partition table entry */ +#define GPTE_PtGuid 0 /* GPT PTE: Partition type GUID (16-byte) */ +#define GPTE_UpGuid 16 /* GPT PTE: Partition unique GUID (16-byte) */ +#define GPTE_FstLba 32 /* GPT PTE: First LBA (QWORD) */ +#define GPTE_LstLba 40 /* GPT PTE: Last LBA inclusive (QWORD) */ +#define GPTE_Flags 48 /* GPT PTE: Flags (QWORD) */ +#define GPTE_Name 56 /* GPT PTE: Name */ + + +/* Post process on fatal error in the file operations */ +#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); } + + +/* Re-entrancy related */ +#if FF_FS_REENTRANT +#if FF_USE_LFN == 1 +#error Static LFN work area cannot be used at thread-safe configuration +#endif +#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; } +#else +#define LEAVE_FF(fs, res) return res +#endif + + +/* Definitions of logical drive - physical location conversion */ +#if FF_MULTI_PARTITION +#define LD2PD(vol) VolToPart[vol].pd /* Get physical drive number */ +#define LD2PT(vol) VolToPart[vol].pt /* Get partition index */ +#else +#define LD2PD(vol) (BYTE)(vol) /* Each logical drive is associated with the same physical drive number */ +#define LD2PT(vol) 0 /* Find first valid partition or in SFD */ +#endif + + +/* Definitions of sector size */ +#if (FF_MAX_SS < FF_MIN_SS) || (FF_MAX_SS != 512 && FF_MAX_SS != 1024 && FF_MAX_SS != 2048 && FF_MAX_SS != 4096) || (FF_MIN_SS != 512 && FF_MIN_SS != 1024 && FF_MIN_SS != 2048 && FF_MIN_SS != 4096) +#error Wrong sector size configuration +#endif +#if FF_MAX_SS == FF_MIN_SS +#define SS(fs) ((UINT)FF_MAX_SS) /* Fixed sector size */ +#else +#define SS(fs) ((fs)->ssize) /* Variable sector size */ +#endif + + +/* Timestamp */ +#if FF_FS_NORTC == 1 +#if FF_NORTC_YEAR < 1980 || FF_NORTC_YEAR > 2107 || FF_NORTC_MON < 1 || FF_NORTC_MON > 12 || FF_NORTC_MDAY < 1 || FF_NORTC_MDAY > 31 +#error Invalid FF_FS_NORTC settings +#endif +#define GET_FATTIME() ((DWORD)(FF_NORTC_YEAR - 1980) << 25 | (DWORD)FF_NORTC_MON << 21 | (DWORD)FF_NORTC_MDAY << 16) +#else +#define GET_FATTIME() get_fattime() +#endif + + +/* File lock controls */ +#if FF_FS_LOCK != 0 +#if FF_FS_READONLY +#error FF_FS_LOCK must be 0 at read-only configuration +#endif +typedef struct { + FATFS *fs; /* Object ID 1, volume (NULL:blank entry) */ + DWORD clu; /* Object ID 2, containing directory (0:root) */ + DWORD ofs; /* Object ID 3, offset in the directory */ + WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */ +} FILESEM; +#endif + + +/* SBCS up-case tables (\x80-\xFF) */ +#define TBL_CT437 {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \ + 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT720 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \ + 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT737 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \ + 0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \ + 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT771 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \ + 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \ + 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF} +#define TBL_CT775 {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \ + 0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \ + 0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT850 {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \ + 0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \ + 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \ + 0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT852 {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \ + 0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \ + 0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF} +#define TBL_CT855 {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \ + 0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \ + 0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \ + 0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \ + 0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT857 {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \ + 0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \ + 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT860 {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \ + 0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT861 {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \ + 0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \ + 0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT862 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \ + 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT863 {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \ + 0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \ + 0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT864 {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \ + 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT865 {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \ + 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \ + 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT866 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \ + 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} +#define TBL_CT869 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \ + 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \ + 0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \ + 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \ + 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \ + 0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \ + 0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF} + + +/* DBCS code range |----- 1st byte -----| |----------- 2nd byte -----------| */ +/* <------> <------> <------> <------> <------> */ +#define TBL_DC932 {0x81, 0x9F, 0xE0, 0xFC, 0x40, 0x7E, 0x80, 0xFC, 0x00, 0x00} +#define TBL_DC936 {0x81, 0xFE, 0x00, 0x00, 0x40, 0x7E, 0x80, 0xFE, 0x00, 0x00} +#define TBL_DC949 {0x81, 0xFE, 0x00, 0x00, 0x41, 0x5A, 0x61, 0x7A, 0x81, 0xFE} +#define TBL_DC950 {0x81, 0xFE, 0x00, 0x00, 0x40, 0x7E, 0xA1, 0xFE, 0x00, 0x00} + + +/* Macros for table definitions */ +#define MERGE_2STR(a, b) a ## b +#define MKCVTBL(hd, cp) MERGE_2STR(hd, cp) + + + + +/*-------------------------------------------------------------------------- + + Module Private Work Area + +---------------------------------------------------------------------------*/ +/* Remark: Variables defined here without initial value shall be guaranteed +/ zero/null at start-up. If not, the linker option or start-up routine is +/ not compliance with C standard. */ + +/*--------------------------------*/ +/* File/Volume controls */ +/*--------------------------------*/ + +#if FF_VOLUMES < 1 || FF_VOLUMES > 10 +#error Wrong FF_VOLUMES setting +#endif +static FATFS* FatFs[FF_VOLUMES]; /* Pointer to the filesystem objects (logical drives) */ +static WORD Fsid; /* Filesystem mount ID */ + +#if FF_FS_RPATH != 0 +static BYTE CurrVol; /* Current drive */ +#endif + +#if FF_FS_LOCK != 0 +static FILESEM Files[FF_FS_LOCK]; /* Open object lock semaphores */ +#endif + +#if FF_STR_VOLUME_ID +#ifdef FF_VOLUME_STRS +static const char* const VolumeStr[FF_VOLUMES] = {FF_VOLUME_STRS}; /* Pre-defined volume ID */ +#endif +#endif + +#if FF_LBA64 +#if FF_MIN_GPT > 0x100000000 +#error Wrong FF_MIN_GPT setting +#endif +static const BYTE GUID_MS_Basic[16] = {0xA2,0xA0,0xD0,0xEB,0xE5,0xB9,0x33,0x44,0x87,0xC0,0x68,0xB6,0xB7,0x26,0x99,0xC7}; +#endif + + + +/*--------------------------------*/ +/* LFN/Directory working buffer */ +/*--------------------------------*/ + +#if FF_USE_LFN == 0 /* Non-LFN configuration */ +#if FF_FS_EXFAT +#error LFN must be enabled when enable exFAT +#endif +#define DEF_NAMBUF +#define INIT_NAMBUF(fs) +#define FREE_NAMBUF() +#define LEAVE_MKFS(res) return res + +#else /* LFN configurations */ +#if FF_MAX_LFN < 12 || FF_MAX_LFN > 255 +#error Wrong setting of FF_MAX_LFN +#endif +#if FF_LFN_BUF < FF_SFN_BUF || FF_SFN_BUF < 12 +#error Wrong setting of FF_LFN_BUF or FF_SFN_BUF +#endif +#if FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 3 +#error Wrong setting of FF_LFN_UNICODE +#endif +static const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* FAT: Offset of LFN characters in the directory entry */ +#define MAXDIRB(nc) ((nc + 44U) / 15 * SZDIRE) /* exFAT: Size of directory entry block scratchpad buffer needed for the name length */ + +#if FF_USE_LFN == 1 /* LFN enabled with static working buffer */ +#if FF_FS_EXFAT +static BYTE DirBuf[MAXDIRB(FF_MAX_LFN)]; /* Directory entry block scratchpad buffer */ +#endif +static WCHAR LfnBuf[FF_MAX_LFN + 1]; /* LFN working buffer */ +#define DEF_NAMBUF +#define INIT_NAMBUF(fs) +#define FREE_NAMBUF() +#define LEAVE_MKFS(res) return res + +#elif FF_USE_LFN == 2 /* LFN enabled with dynamic working buffer on the stack */ +#if FF_FS_EXFAT +#define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; BYTE dbuf[MAXDIRB(FF_MAX_LFN)]; /* LFN working buffer and directory entry block scratchpad buffer */ +#define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; (fs)->dirbuf = dbuf; } +#define FREE_NAMBUF() +#else +#define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; /* LFN working buffer */ +#define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; } +#define FREE_NAMBUF() +#endif +#define LEAVE_MKFS(res) return res + +#elif FF_USE_LFN == 3 /* LFN enabled with dynamic working buffer on the heap */ +#if FF_FS_EXFAT +#define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer and directory entry block scratchpad buffer */ +#define INIT_NAMBUF(fs) { lfn = ff_memalloc((FF_MAX_LFN+1)*2 + MAXDIRB(FF_MAX_LFN)); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; (fs)->dirbuf = (BYTE*)(lfn+FF_MAX_LFN+1); } +#define FREE_NAMBUF() ff_memfree(lfn) +#else +#define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer */ +#define INIT_NAMBUF(fs) { lfn = ff_memalloc((FF_MAX_LFN+1)*2); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; } +#define FREE_NAMBUF() ff_memfree(lfn) +#endif +#define LEAVE_MKFS(res) { if (!work) ff_memfree(buf); return res; } +#define MAX_MALLOC 0x8000 /* Must be >=FF_MAX_SS */ + +#else +#error Wrong setting of FF_USE_LFN + +#endif /* FF_USE_LFN == 1 */ +#endif /* FF_USE_LFN == 0 */ + + + +/*--------------------------------*/ +/* Code conversion tables */ +/*--------------------------------*/ + +#if FF_CODE_PAGE == 0 /* Run-time code page configuration */ +#define CODEPAGE CodePage +static WORD CodePage; /* Current code page */ +static const BYTE *ExCvt, *DbcTbl; /* Pointer to current SBCS up-case table and DBCS code range table below */ + +static const BYTE Ct437[] = TBL_CT437; +static const BYTE Ct720[] = TBL_CT720; +static const BYTE Ct737[] = TBL_CT737; +static const BYTE Ct771[] = TBL_CT771; +static const BYTE Ct775[] = TBL_CT775; +static const BYTE Ct850[] = TBL_CT850; +static const BYTE Ct852[] = TBL_CT852; +static const BYTE Ct855[] = TBL_CT855; +static const BYTE Ct857[] = TBL_CT857; +static const BYTE Ct860[] = TBL_CT860; +static const BYTE Ct861[] = TBL_CT861; +static const BYTE Ct862[] = TBL_CT862; +static const BYTE Ct863[] = TBL_CT863; +static const BYTE Ct864[] = TBL_CT864; +static const BYTE Ct865[] = TBL_CT865; +static const BYTE Ct866[] = TBL_CT866; +static const BYTE Ct869[] = TBL_CT869; +static const BYTE Dc932[] = TBL_DC932; +static const BYTE Dc936[] = TBL_DC936; +static const BYTE Dc949[] = TBL_DC949; +static const BYTE Dc950[] = TBL_DC950; + +#elif FF_CODE_PAGE < 900 /* Static code page configuration (SBCS) */ +#define CODEPAGE FF_CODE_PAGE +static const BYTE ExCvt[] = MKCVTBL(TBL_CT, FF_CODE_PAGE); + +#else /* Static code page configuration (DBCS) */ +#define CODEPAGE FF_CODE_PAGE +static const BYTE DbcTbl[] = MKCVTBL(TBL_DC, FF_CODE_PAGE); + +#endif + + + + +/*-------------------------------------------------------------------------- + + Module Private Functions + +---------------------------------------------------------------------------*/ + + +/*-----------------------------------------------------------------------*/ +/* Load/Store multi-byte word in the FAT structure */ +/*-----------------------------------------------------------------------*/ + +static WORD ld_word (const BYTE* ptr) /* Load a 2-byte little-endian word */ +{ + WORD rv; + + rv = ptr[1]; + rv = rv << 8 | ptr[0]; + return rv; +} + +static DWORD ld_dword (const BYTE* ptr) /* Load a 4-byte little-endian word */ +{ + DWORD rv; + + rv = ptr[3]; + rv = rv << 8 | ptr[2]; + rv = rv << 8 | ptr[1]; + rv = rv << 8 | ptr[0]; + return rv; +} + +#if FF_FS_EXFAT +static QWORD ld_qword (const BYTE* ptr) /* Load an 8-byte little-endian word */ +{ + QWORD rv; + + rv = ptr[7]; + rv = rv << 8 | ptr[6]; + rv = rv << 8 | ptr[5]; + rv = rv << 8 | ptr[4]; + rv = rv << 8 | ptr[3]; + rv = rv << 8 | ptr[2]; + rv = rv << 8 | ptr[1]; + rv = rv << 8 | ptr[0]; + return rv; +} +#endif + +#if !FF_FS_READONLY +static void st_word (BYTE* ptr, WORD val) /* Store a 2-byte word in little-endian */ +{ + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; +} + +static void st_dword (BYTE* ptr, DWORD val) /* Store a 4-byte word in little-endian */ +{ + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; +} + +#if FF_FS_EXFAT +static void st_qword (BYTE* ptr, QWORD val) /* Store an 8-byte word in little-endian */ +{ + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; val >>= 8; + *ptr++ = (BYTE)val; +} +#endif +#endif /* !FF_FS_READONLY */ + + + +/*-----------------------------------------------------------------------*/ +/* String functions */ +/*-----------------------------------------------------------------------*/ + +/* Copy memory to memory */ +static void mem_cpy (void* dst, const void* src, UINT cnt) +{ + BYTE *d = (BYTE*)dst; + const BYTE *s = (const BYTE*)src; + + if (cnt != 0) { + do { + *d++ = *s++; + } while (--cnt); + } +} + + +/* Fill memory block */ +static void mem_set (void* dst, int val, UINT cnt) +{ + BYTE *d = (BYTE*)dst; + + do { + *d++ = (BYTE)val; + } while (--cnt); +} + + +/* Compare memory block */ +static int mem_cmp (const void* dst, const void* src, UINT cnt) /* ZR:same, NZ:different */ +{ + const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src; + int r = 0; + + do { + r = *d++ - *s++; + } while (--cnt && r == 0); + + return r; +} + + +/* Check if chr is contained in the string */ +static int chk_chr (const char* str, int chr) /* NZ:contained, ZR:not contained */ +{ + while (*str && *str != chr) str++; + return *str; +} + + +/* Test if the byte is DBC 1st byte */ +static int dbc_1st (BYTE c) +{ +#if FF_CODE_PAGE == 0 /* Variable code page */ + if (DbcTbl && c >= DbcTbl[0]) { + if (c <= DbcTbl[1]) return 1; /* 1st byte range 1 */ + if (c >= DbcTbl[2] && c <= DbcTbl[3]) return 1; /* 1st byte range 2 */ + } +#elif FF_CODE_PAGE >= 900 /* DBCS fixed code page */ + if (c >= DbcTbl[0]) { + if (c <= DbcTbl[1]) return 1; + if (c >= DbcTbl[2] && c <= DbcTbl[3]) return 1; + } +#else /* SBCS fixed code page */ + if (c != 0) return 0; /* Always false */ +#endif + return 0; +} + + +/* Test if the byte is DBC 2nd byte */ +static int dbc_2nd (BYTE c) +{ +#if FF_CODE_PAGE == 0 /* Variable code page */ + if (DbcTbl && c >= DbcTbl[4]) { + if (c <= DbcTbl[5]) return 1; /* 2nd byte range 1 */ + if (c >= DbcTbl[6] && c <= DbcTbl[7]) return 1; /* 2nd byte range 2 */ + if (c >= DbcTbl[8] && c <= DbcTbl[9]) return 1; /* 2nd byte range 3 */ + } +#elif FF_CODE_PAGE >= 900 /* DBCS fixed code page */ + if (c >= DbcTbl[4]) { + if (c <= DbcTbl[5]) return 1; + if (c >= DbcTbl[6] && c <= DbcTbl[7]) return 1; + if (c >= DbcTbl[8] && c <= DbcTbl[9]) return 1; + } +#else /* SBCS fixed code page */ + if (c != 0) return 0; /* Always false */ +#endif + return 0; +} + + +#if FF_USE_LFN + +/* Get a Unicode code point from the TCHAR string in defined API encodeing */ +static DWORD tchar2uni ( /* Returns a character in UTF-16 encoding (>=0x10000 on surrogate pair, 0xFFFFFFFF on decode error) */ + const TCHAR** str /* Pointer to pointer to TCHAR string in configured encoding */ +) +{ + DWORD uc; + const TCHAR *p = *str; + +#if FF_LFN_UNICODE == 1 /* UTF-16 input */ + WCHAR wc; + + uc = *p++; /* Get a unit */ + if (IsSurrogate(uc)) { /* Surrogate? */ + wc = *p++; /* Get low surrogate */ + if (!IsSurrogateH(uc) || !IsSurrogateL(wc)) return 0xFFFFFFFF; /* Wrong surrogate? */ + uc = uc << 16 | wc; + } + +#elif FF_LFN_UNICODE == 2 /* UTF-8 input */ + BYTE b; + int nf; + + uc = (BYTE)*p++; /* Get an encoding unit */ + if (uc & 0x80) { /* Multiple byte code? */ + if ((uc & 0xE0) == 0xC0) { /* 2-byte sequence? */ + uc &= 0x1F; nf = 1; + } else { + if ((uc & 0xF0) == 0xE0) { /* 3-byte sequence? */ + uc &= 0x0F; nf = 2; + } else { + if ((uc & 0xF8) == 0xF0) { /* 4-byte sequence? */ + uc &= 0x07; nf = 3; + } else { /* Wrong sequence */ + return 0xFFFFFFFF; + } + } + } + do { /* Get trailing bytes */ + b = (BYTE)*p++; + if ((b & 0xC0) != 0x80) return 0xFFFFFFFF; /* Wrong sequence? */ + uc = uc << 6 | (b & 0x3F); + } while (--nf != 0); + if (uc < 0x80 || IsSurrogate(uc) || uc >= 0x110000) return 0xFFFFFFFF; /* Wrong code? */ + if (uc >= 0x010000) uc = 0xD800DC00 | ((uc - 0x10000) << 6 & 0x3FF0000) | (uc & 0x3FF); /* Make a surrogate pair if needed */ + } + +#elif FF_LFN_UNICODE == 3 /* UTF-32 input */ + uc = (TCHAR)*p++; /* Get a unit */ + if (uc >= 0x110000 || IsSurrogate(uc)) return 0xFFFFFFFF; /* Wrong code? */ + if (uc >= 0x010000) uc = 0xD800DC00 | ((uc - 0x10000) << 6 & 0x3FF0000) | (uc & 0x3FF); /* Make a surrogate pair if needed */ + +#else /* ANSI/OEM input */ + BYTE b; + WCHAR wc; + + wc = (BYTE)*p++; /* Get a byte */ + if (dbc_1st((BYTE)wc)) { /* Is it a DBC 1st byte? */ + b = (BYTE)*p++; /* Get 2nd byte */ + if (!dbc_2nd(b)) return 0xFFFFFFFF; /* Invalid code? */ + wc = (wc << 8) + b; /* Make a DBC */ + } + if (wc != 0) { + wc = ff_oem2uni(wc, CODEPAGE); /* ANSI/OEM ==> Unicode */ + if (wc == 0) return 0xFFFFFFFF; /* Invalid code? */ + } + uc = wc; + +#endif + *str = p; /* Next read pointer */ + return uc; +} + + +/* Output a TCHAR string in defined API encoding */ +static BYTE put_utf ( /* Returns number of encoding units written (0:buffer overflow or wrong encoding) */ + DWORD chr, /* UTF-16 encoded character (Surrogate pair if >=0x10000) */ + TCHAR* buf, /* Output buffer */ + UINT szb /* Size of the buffer */ +) +{ +#if FF_LFN_UNICODE == 1 /* UTF-16 output */ + WCHAR hs, wc; + + hs = (WCHAR)(chr >> 16); + wc = (WCHAR)chr; + if (hs == 0) { /* Single encoding unit? */ + if (szb < 1 || IsSurrogate(wc)) return 0; /* Buffer overflow or wrong code? */ + *buf = wc; + return 1; + } + if (szb < 2 || !IsSurrogateH(hs) || !IsSurrogateL(wc)) return 0; /* Buffer overflow or wrong surrogate? */ + *buf++ = hs; + *buf++ = wc; + return 2; + +#elif FF_LFN_UNICODE == 2 /* UTF-8 output */ + DWORD hc; + + if (chr < 0x80) { /* Single byte code? */ + if (szb < 1) return 0; /* Buffer overflow? */ + *buf = (TCHAR)chr; + return 1; + } + if (chr < 0x800) { /* 2-byte sequence? */ + if (szb < 2) return 0; /* Buffer overflow? */ + *buf++ = (TCHAR)(0xC0 | (chr >> 6 & 0x1F)); + *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F)); + return 2; + } + if (chr < 0x10000) { /* 3-byte sequence? */ + if (szb < 3 || IsSurrogate(chr)) return 0; /* Buffer overflow or wrong code? */ + *buf++ = (TCHAR)(0xE0 | (chr >> 12 & 0x0F)); + *buf++ = (TCHAR)(0x80 | (chr >> 6 & 0x3F)); + *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F)); + return 3; + } + /* 4-byte sequence */ + if (szb < 4) return 0; /* Buffer overflow? */ + hc = ((chr & 0xFFFF0000) - 0xD8000000) >> 6; /* Get high 10 bits */ + chr = (chr & 0xFFFF) - 0xDC00; /* Get low 10 bits */ + if (hc >= 0x100000 || chr >= 0x400) return 0; /* Wrong surrogate? */ + chr = (hc | chr) + 0x10000; + *buf++ = (TCHAR)(0xF0 | (chr >> 18 & 0x07)); + *buf++ = (TCHAR)(0x80 | (chr >> 12 & 0x3F)); + *buf++ = (TCHAR)(0x80 | (chr >> 6 & 0x3F)); + *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F)); + return 4; + +#elif FF_LFN_UNICODE == 3 /* UTF-32 output */ + DWORD hc; + + if (szb < 1) return 0; /* Buffer overflow? */ + if (chr >= 0x10000) { /* Out of BMP? */ + hc = ((chr & 0xFFFF0000) - 0xD8000000) >> 6; /* Get high 10 bits */ + chr = (chr & 0xFFFF) - 0xDC00; /* Get low 10 bits */ + if (hc >= 0x100000 || chr >= 0x400) return 0; /* Wrong surrogate? */ + chr = (hc | chr) + 0x10000; + } + *buf++ = (TCHAR)chr; + return 1; + +#else /* ANSI/OEM output */ + WCHAR wc; + + wc = ff_uni2oem(chr, CODEPAGE); + if (wc >= 0x100) { /* Is this a DBC? */ + if (szb < 2) return 0; + *buf++ = (char)(wc >> 8); /* Store DBC 1st byte */ + *buf++ = (TCHAR)wc; /* Store DBC 2nd byte */ + return 2; + } + if (wc == 0 || szb < 1) return 0; /* Invalid char or buffer overflow? */ + *buf++ = (TCHAR)wc; /* Store the character */ + return 1; +#endif +} +#endif /* FF_USE_LFN */ + + +#if FF_FS_REENTRANT +/*-----------------------------------------------------------------------*/ +/* Request/Release grant to access the volume */ +/*-----------------------------------------------------------------------*/ +static int lock_fs ( /* 1:Ok, 0:timeout */ + FATFS* fs /* Filesystem object */ +) +{ + return ff_req_grant(fs->sobj); +} + + +static void unlock_fs ( + FATFS* fs, /* Filesystem object */ + FRESULT res /* Result code to be returned */ +) +{ + if (fs && res != FR_NOT_ENABLED && res != FR_INVALID_DRIVE && res != FR_TIMEOUT) { + ff_rel_grant(fs->sobj); + } +} + +#endif + + + +#if FF_FS_LOCK != 0 +/*-----------------------------------------------------------------------*/ +/* File lock control functions */ +/*-----------------------------------------------------------------------*/ + +static FRESULT chk_lock ( /* Check if the file can be accessed */ + DIR* dp, /* Directory object pointing the file to be checked */ + int acc /* Desired access type (0:Read mode open, 1:Write mode open, 2:Delete or rename) */ +) +{ + UINT i, be; + + /* Search open object table for the object */ + be = 0; + for (i = 0; i < FF_FS_LOCK; i++) { + if (Files[i].fs) { /* Existing entry */ + if (Files[i].fs == dp->obj.fs && /* Check if the object matches with an open object */ + Files[i].clu == dp->obj.sclust && + Files[i].ofs == dp->dptr) break; + } else { /* Blank entry */ + be = 1; + } + } + if (i == FF_FS_LOCK) { /* The object has not been opened */ + return (!be && acc != 2) ? FR_TOO_MANY_OPEN_FILES : FR_OK; /* Is there a blank entry for new object? */ + } + + /* The object was opened. Reject any open against writing file and all write mode open */ + return (acc != 0 || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK; +} + + +static int enq_lock (void) /* Check if an entry is available for a new object */ +{ + UINT i; + + for (i = 0; i < FF_FS_LOCK && Files[i].fs; i++) ; + return (i == FF_FS_LOCK) ? 0 : 1; +} + + +static UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */ + DIR* dp, /* Directory object pointing the file to register or increment */ + int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */ +) +{ + UINT i; + + + for (i = 0; i < FF_FS_LOCK; i++) { /* Find the object */ + if (Files[i].fs == dp->obj.fs + && Files[i].clu == dp->obj.sclust + && Files[i].ofs == dp->dptr) break; + } + + if (i == FF_FS_LOCK) { /* Not opened. Register it as new. */ + for (i = 0; i < FF_FS_LOCK && Files[i].fs; i++) ; + if (i == FF_FS_LOCK) return 0; /* No free entry to register (int err) */ + Files[i].fs = dp->obj.fs; + Files[i].clu = dp->obj.sclust; + Files[i].ofs = dp->dptr; + Files[i].ctr = 0; + } + + if (acc >= 1 && Files[i].ctr) return 0; /* Access violation (int err) */ + + Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */ + + return i + 1; /* Index number origin from 1 */ +} + + +static FRESULT dec_lock ( /* Decrement object open counter */ + UINT i /* Semaphore index (1..) */ +) +{ + WORD n; + FRESULT res; + + + if (--i < FF_FS_LOCK) { /* Index number origin from 0 */ + n = Files[i].ctr; + if (n == 0x100) n = 0; /* If write mode open, delete the entry */ + if (n > 0) n--; /* Decrement read mode open count */ + Files[i].ctr = n; + if (n == 0) Files[i].fs = 0; /* Delete the entry if open count gets zero */ + res = FR_OK; + } else { + res = FR_INT_ERR; /* Invalid index nunber */ + } + return res; +} + + +static void clear_lock ( /* Clear lock entries of the volume */ + FATFS *fs +) +{ + UINT i; + + for (i = 0; i < FF_FS_LOCK; i++) { + if (Files[i].fs == fs) Files[i].fs = 0; + } +} + +#endif /* FF_FS_LOCK != 0 */ + + + +/*-----------------------------------------------------------------------*/ +/* Move/Flush disk access window in the filesystem object */ +/*-----------------------------------------------------------------------*/ +#if !FF_FS_READONLY +static FRESULT sync_window ( /* Returns FR_OK or FR_DISK_ERR */ + FATFS* fs /* Filesystem object */ +) +{ + FRESULT res = FR_OK; + + + if (fs->wflag) { /* Is the disk access window dirty? */ + if (disk_write(fs->pdrv, fs->win, fs->winsect, 1) == RES_OK) { /* Write it back into the volume */ + fs->wflag = 0; /* Clear window dirty flag */ + if (fs->winsect - fs->fatbase < fs->fsize) { /* Is it in the 1st FAT? */ + if (fs->n_fats == 2) disk_write(fs->pdrv, fs->win, fs->winsect + fs->fsize, 1); /* Reflect it to 2nd FAT if needed */ + } + } else { + res = FR_DISK_ERR; + } + } + return res; +} +#endif + + +static FRESULT move_window ( /* Returns FR_OK or FR_DISK_ERR */ + FATFS* fs, /* Filesystem object */ + LBA_t sect /* Sector LBA to make appearance in the fs->win[] */ +) +{ + FRESULT res = FR_OK; + + + if (sect != fs->winsect) { /* Window offset changed? */ +#if !FF_FS_READONLY + res = sync_window(fs); /* Flush the window */ +#endif + if (res == FR_OK) { /* Fill sector window with new data */ + if (disk_read(fs->pdrv, fs->win, sect, 1) != RES_OK) { + sect = (LBA_t)0 - 1; /* Invalidate window if read data is not valid */ + res = FR_DISK_ERR; + } + fs->winsect = sect; + } + } + return res; +} + + + + +#if !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Synchronize filesystem and data on the storage */ +/*-----------------------------------------------------------------------*/ + +static FRESULT sync_fs ( /* Returns FR_OK or FR_DISK_ERR */ + FATFS* fs /* Filesystem object */ +) +{ + FRESULT res; + + + res = sync_window(fs); + if (res == FR_OK) { + if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) { /* FAT32: Update FSInfo sector if needed */ + /* Create FSInfo structure */ + mem_set(fs->win, 0, sizeof fs->win); + st_word(fs->win + BS_55AA, 0xAA55); + st_dword(fs->win + FSI_LeadSig, 0x41615252); + st_dword(fs->win + FSI_StrucSig, 0x61417272); + st_dword(fs->win + FSI_Free_Count, fs->free_clst); + st_dword(fs->win + FSI_Nxt_Free, fs->last_clst); + /* Write it into the FSInfo sector */ + fs->winsect = fs->volbase + 1; + disk_write(fs->pdrv, fs->win, fs->winsect, 1); + fs->fsi_flag = 0; + } + /* Make sure that no pending write process in the lower layer */ + if (disk_ioctl(fs->pdrv, CTRL_SYNC, 0) != RES_OK) res = FR_DISK_ERR; + } + + return res; +} + +#endif + + + +/*-----------------------------------------------------------------------*/ +/* Get physical sector number from cluster number */ +/*-----------------------------------------------------------------------*/ + +static LBA_t clst2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */ + FATFS* fs, /* Filesystem object */ + DWORD clst /* Cluster# to be converted */ +) +{ + clst -= 2; /* Cluster number is origin from 2 */ + if (clst >= fs->n_fatent - 2) return 0; /* Is it invalid cluster number? */ + return fs->database + (LBA_t)fs->csize * clst; /* Start sector number of the cluster */ +} + + + + +/*-----------------------------------------------------------------------*/ +/* FAT access - Read value of a FAT entry */ +/*-----------------------------------------------------------------------*/ + +static DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluster status */ + FFOBJID* obj, /* Corresponding object */ + DWORD clst /* Cluster number to get the value */ +) +{ + UINT wc, bc; + DWORD val; + FATFS *fs = obj->fs; + + + if (clst < 2 || clst >= fs->n_fatent) { /* Check if in valid range */ + val = 1; /* Internal error */ + + } else { + val = 0xFFFFFFFF; /* Default value falls on disk error */ + + switch (fs->fs_type) { + case FS_FAT12 : + bc = (UINT)clst; bc += bc / 2; + if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break; + wc = fs->win[bc++ % SS(fs)]; /* Get 1st byte of the entry */ + if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break; + wc |= fs->win[bc % SS(fs)] << 8; /* Merge 2nd byte of the entry */ + val = (clst & 1) ? (wc >> 4) : (wc & 0xFFF); /* Adjust bit position */ + break; + + case FS_FAT16 : + if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break; + val = ld_word(fs->win + clst * 2 % SS(fs)); /* Simple WORD array */ + break; + + case FS_FAT32 : + if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break; + val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x0FFFFFFF; /* Simple DWORD array but mask out upper 4 bits */ + break; +#if FF_FS_EXFAT + case FS_EXFAT : + if ((obj->objsize != 0 && obj->sclust != 0) || obj->stat == 0) { /* Object except root dir must have valid data length */ + DWORD cofs = clst - obj->sclust; /* Offset from start cluster */ + DWORD clen = (DWORD)((LBA_t)((obj->objsize - 1) / SS(fs)) / fs->csize); /* Number of clusters - 1 */ + + if (obj->stat == 2 && cofs <= clen) { /* Is it a contiguous chain? */ + val = (cofs == clen) ? 0x7FFFFFFF : clst + 1; /* No data on the FAT, generate the value */ + break; + } + if (obj->stat == 3 && cofs < obj->n_cont) { /* Is it in the 1st fragment? */ + val = clst + 1; /* Generate the value */ + break; + } + if (obj->stat != 2) { /* Get value from FAT if FAT chain is valid */ + if (obj->n_frag != 0) { /* Is it on the growing edge? */ + val = 0x7FFFFFFF; /* Generate EOC */ + } else { + if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break; + val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x7FFFFFFF; + } + break; + } + } + /* go to default */ +#endif + default: + val = 1; /* Internal error */ + } + } + + return val; +} + + + + +#if !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* FAT access - Change value of a FAT entry */ +/*-----------------------------------------------------------------------*/ + +static FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */ + FATFS* fs, /* Corresponding filesystem object */ + DWORD clst, /* FAT index number (cluster number) to be changed */ + DWORD val /* New value to be set to the entry */ +) +{ + UINT bc; + BYTE *p; + FRESULT res = FR_INT_ERR; + + + if (clst >= 2 && clst < fs->n_fatent) { /* Check if in valid range */ + switch (fs->fs_type) { + case FS_FAT12 : + bc = (UINT)clst; bc += bc / 2; /* bc: byte offset of the entry */ + res = move_window(fs, fs->fatbase + (bc / SS(fs))); + if (res != FR_OK) break; + p = fs->win + bc++ % SS(fs); + *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; /* Update 1st byte */ + fs->wflag = 1; + res = move_window(fs, fs->fatbase + (bc / SS(fs))); + if (res != FR_OK) break; + p = fs->win + bc % SS(fs); + *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); /* Update 2nd byte */ + fs->wflag = 1; + break; + + case FS_FAT16 : + res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))); + if (res != FR_OK) break; + st_word(fs->win + clst * 2 % SS(fs), (WORD)val); /* Simple WORD array */ + fs->wflag = 1; + break; + + case FS_FAT32 : +#if FF_FS_EXFAT + case FS_EXFAT : +#endif + res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))); + if (res != FR_OK) break; + if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { + val = (val & 0x0FFFFFFF) | (ld_dword(fs->win + clst * 4 % SS(fs)) & 0xF0000000); + } + st_dword(fs->win + clst * 4 % SS(fs), val); + fs->wflag = 1; + break; + } + } + return res; +} + +#endif /* !FF_FS_READONLY */ + + + + +#if FF_FS_EXFAT && !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* exFAT: Accessing FAT and Allocation Bitmap */ +/*-----------------------------------------------------------------------*/ + +/*--------------------------------------*/ +/* Find a contiguous free cluster block */ +/*--------------------------------------*/ + +static DWORD find_bitmap ( /* 0:Not found, 2..:Cluster block found, 0xFFFFFFFF:Disk error */ + FATFS* fs, /* Filesystem object */ + DWORD clst, /* Cluster number to scan from */ + DWORD ncl /* Number of contiguous clusters to find (1..) */ +) +{ + BYTE bm, bv; + UINT i; + DWORD val, scl, ctr; + + + clst -= 2; /* The first bit in the bitmap corresponds to cluster #2 */ + if (clst >= fs->n_fatent - 2) clst = 0; + scl = val = clst; ctr = 0; + for (;;) { + if (move_window(fs, fs->bitbase + val / 8 / SS(fs)) != FR_OK) return 0xFFFFFFFF; + i = val / 8 % SS(fs); bm = 1 << (val % 8); + do { + do { + bv = fs->win[i] & bm; bm <<= 1; /* Get bit value */ + if (++val >= fs->n_fatent - 2) { /* Next cluster (with wrap-around) */ + val = 0; bm = 0; i = SS(fs); + } + if (bv == 0) { /* Is it a free cluster? */ + if (++ctr == ncl) return scl + 2; /* Check if run length is sufficient for required */ + } else { + scl = val; ctr = 0; /* Encountered a cluster in-use, restart to scan */ + } + if (val == clst) return 0; /* All cluster scanned? */ + } while (bm != 0); + bm = 1; + } while (++i < SS(fs)); + } +} + + +/*----------------------------------------*/ +/* Set/Clear a block of allocation bitmap */ +/*----------------------------------------*/ + +static FRESULT change_bitmap ( + FATFS* fs, /* Filesystem object */ + DWORD clst, /* Cluster number to change from */ + DWORD ncl, /* Number of clusters to be changed */ + int bv /* bit value to be set (0 or 1) */ +) +{ + BYTE bm; + UINT i; + LBA_t sect; + + + clst -= 2; /* The first bit corresponds to cluster #2 */ + sect = fs->bitbase + clst / 8 / SS(fs); /* Sector address */ + i = clst / 8 % SS(fs); /* Byte offset in the sector */ + bm = 1 << (clst % 8); /* Bit mask in the byte */ + for (;;) { + if (move_window(fs, sect++) != FR_OK) return FR_DISK_ERR; + do { + do { + if (bv == (int)((fs->win[i] & bm) != 0)) return FR_INT_ERR; /* Is the bit expected value? */ + fs->win[i] ^= bm; /* Flip the bit */ + fs->wflag = 1; + if (--ncl == 0) return FR_OK; /* All bits processed? */ + } while (bm <<= 1); /* Next bit */ + bm = 1; + } while (++i < SS(fs)); /* Next byte */ + i = 0; + } +} + + +/*---------------------------------------------*/ +/* Fill the first fragment of the FAT chain */ +/*---------------------------------------------*/ + +static FRESULT fill_first_frag ( + FFOBJID* obj /* Pointer to the corresponding object */ +) +{ + FRESULT res; + DWORD cl, n; + + + if (obj->stat == 3) { /* Has the object been changed 'fragmented' in this session? */ + for (cl = obj->sclust, n = obj->n_cont; n; cl++, n--) { /* Create cluster chain on the FAT */ + res = put_fat(obj->fs, cl, cl + 1); + if (res != FR_OK) return res; + } + obj->stat = 0; /* Change status 'FAT chain is valid' */ + } + return FR_OK; +} + + +/*---------------------------------------------*/ +/* Fill the last fragment of the FAT chain */ +/*---------------------------------------------*/ + +static FRESULT fill_last_frag ( + FFOBJID* obj, /* Pointer to the corresponding object */ + DWORD lcl, /* Last cluster of the fragment */ + DWORD term /* Value to set the last FAT entry */ +) +{ + FRESULT res; + + + while (obj->n_frag > 0) { /* Create the chain of last fragment */ + res = put_fat(obj->fs, lcl - obj->n_frag + 1, (obj->n_frag > 1) ? lcl - obj->n_frag + 2 : term); + if (res != FR_OK) return res; + obj->n_frag--; + } + return FR_OK; +} + +#endif /* FF_FS_EXFAT && !FF_FS_READONLY */ + + + +#if !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* FAT handling - Remove a cluster chain */ +/*-----------------------------------------------------------------------*/ + +static FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */ + FFOBJID* obj, /* Corresponding object */ + DWORD clst, /* Cluster to remove a chain from */ + DWORD pclst /* Previous cluster of clst (0 if entire chain) */ +) +{ + FRESULT res = FR_OK; + DWORD nxt; + FATFS *fs = obj->fs; +#if FF_FS_EXFAT || FF_USE_TRIM + DWORD scl = clst, ecl = clst; +#endif +#if FF_USE_TRIM + LBA_t rt[2]; +#endif + + if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Check if in valid range */ + + /* Mark the previous cluster 'EOC' on the FAT if it exists */ + if (pclst != 0 && (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT || obj->stat != 2)) { + res = put_fat(fs, pclst, 0xFFFFFFFF); + if (res != FR_OK) return res; + } + + /* Remove the chain */ + do { + nxt = get_fat(obj, clst); /* Get cluster status */ + if (nxt == 0) break; /* Empty cluster? */ + if (nxt == 1) return FR_INT_ERR; /* Internal error? */ + if (nxt == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error? */ + if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { + res = put_fat(fs, clst, 0); /* Mark the cluster 'free' on the FAT */ + if (res != FR_OK) return res; + } + if (fs->free_clst < fs->n_fatent - 2) { /* Update FSINFO */ + fs->free_clst++; + fs->fsi_flag |= 1; + } +#if FF_FS_EXFAT || FF_USE_TRIM + if (ecl + 1 == nxt) { /* Is next cluster contiguous? */ + ecl = nxt; + } else { /* End of contiguous cluster block */ +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + res = change_bitmap(fs, scl, ecl - scl + 1, 0); /* Mark the cluster block 'free' on the bitmap */ + if (res != FR_OK) return res; + } +#endif +#if FF_USE_TRIM + rt[0] = clst2sect(fs, scl); /* Start of data area to be freed */ + rt[1] = clst2sect(fs, ecl) + fs->csize - 1; /* End of data area to be freed */ + disk_ioctl(fs->pdrv, CTRL_TRIM, rt); /* Inform storage device that the data in the block may be erased */ +#endif + scl = ecl = nxt; + } +#endif + clst = nxt; /* Next cluster */ + } while (clst < fs->n_fatent); /* Repeat while not the last link */ + +#if FF_FS_EXFAT + /* Some post processes for chain status */ + if (fs->fs_type == FS_EXFAT) { + if (pclst == 0) { /* Has the entire chain been removed? */ + obj->stat = 0; /* Change the chain status 'initial' */ + } else { + if (obj->stat == 0) { /* Is it a fragmented chain from the beginning of this session? */ + clst = obj->sclust; /* Follow the chain to check if it gets contiguous */ + while (clst != pclst) { + nxt = get_fat(obj, clst); + if (nxt < 2) return FR_INT_ERR; + if (nxt == 0xFFFFFFFF) return FR_DISK_ERR; + if (nxt != clst + 1) break; /* Not contiguous? */ + clst++; + } + if (clst == pclst) { /* Has the chain got contiguous again? */ + obj->stat = 2; /* Change the chain status 'contiguous' */ + } + } else { + if (obj->stat == 3 && pclst >= obj->sclust && pclst <= obj->sclust + obj->n_cont) { /* Was the chain fragmented in this session and got contiguous again? */ + obj->stat = 2; /* Change the chain status 'contiguous' */ + } + } + } + } +#endif + return FR_OK; +} + + + + +/*-----------------------------------------------------------------------*/ +/* FAT handling - Stretch a chain or Create a new chain */ +/*-----------------------------------------------------------------------*/ + +static DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */ + FFOBJID* obj, /* Corresponding object */ + DWORD clst /* Cluster# to stretch, 0:Create a new chain */ +) +{ + DWORD cs, ncl, scl; + FRESULT res; + FATFS *fs = obj->fs; + + + if (clst == 0) { /* Create a new chain */ + scl = fs->last_clst; /* Suggested cluster to start to find */ + if (scl == 0 || scl >= fs->n_fatent) scl = 1; + } + else { /* Stretch a chain */ + cs = get_fat(obj, clst); /* Check the cluster status */ + if (cs < 2) return 1; /* Test for insanity */ + if (cs == 0xFFFFFFFF) return cs; /* Test for disk error */ + if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */ + scl = clst; /* Cluster to start to find */ + } + if (fs->free_clst == 0) return 0; /* No free cluster */ + +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ + ncl = find_bitmap(fs, scl, 1); /* Find a free cluster */ + if (ncl == 0 || ncl == 0xFFFFFFFF) return ncl; /* No free cluster or hard error? */ + res = change_bitmap(fs, ncl, 1, 1); /* Mark the cluster 'in use' */ + if (res == FR_INT_ERR) return 1; + if (res == FR_DISK_ERR) return 0xFFFFFFFF; + if (clst == 0) { /* Is it a new chain? */ + obj->stat = 2; /* Set status 'contiguous' */ + } else { /* It is a stretched chain */ + if (obj->stat == 2 && ncl != scl + 1) { /* Is the chain got fragmented? */ + obj->n_cont = scl - obj->sclust; /* Set size of the contiguous part */ + obj->stat = 3; /* Change status 'just fragmented' */ + } + } + if (obj->stat != 2) { /* Is the file non-contiguous? */ + if (ncl == clst + 1) { /* Is the cluster next to previous one? */ + obj->n_frag = obj->n_frag ? obj->n_frag + 1 : 2; /* Increment size of last framgent */ + } else { /* New fragment */ + if (obj->n_frag == 0) obj->n_frag = 1; + res = fill_last_frag(obj, clst, ncl); /* Fill last fragment on the FAT and link it to new one */ + if (res == FR_OK) obj->n_frag = 1; + } + } + } else +#endif + { /* On the FAT/FAT32 volume */ + ncl = 0; + if (scl == clst) { /* Stretching an existing chain? */ + ncl = scl + 1; /* Test if next cluster is free */ + if (ncl >= fs->n_fatent) ncl = 2; + cs = get_fat(obj, ncl); /* Get next cluster status */ + if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* Test for error */ + if (cs != 0) { /* Not free? */ + cs = fs->last_clst; /* Start at suggested cluster if it is valid */ + if (cs >= 2 && cs < fs->n_fatent) scl = cs; + ncl = 0; + } + } + if (ncl == 0) { /* The new cluster cannot be contiguous and find another fragment */ + ncl = scl; /* Start cluster */ + for (;;) { + ncl++; /* Next cluster */ + if (ncl >= fs->n_fatent) { /* Check wrap-around */ + ncl = 2; + if (ncl > scl) return 0; /* No free cluster found? */ + } + cs = get_fat(obj, ncl); /* Get the cluster status */ + if (cs == 0) break; /* Found a free cluster? */ + if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* Test for error */ + if (ncl == scl) return 0; /* No free cluster found? */ + } + } + res = put_fat(fs, ncl, 0xFFFFFFFF); /* Mark the new cluster 'EOC' */ + if (res == FR_OK && clst != 0) { + res = put_fat(fs, clst, ncl); /* Link it from the previous one if needed */ + } + } + + if (res == FR_OK) { /* Update FSINFO if function succeeded. */ + fs->last_clst = ncl; + if (fs->free_clst <= fs->n_fatent - 2) fs->free_clst--; + fs->fsi_flag |= 1; + } else { + ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1; /* Failed. Generate error status */ + } + + return ncl; /* Return new cluster number or error status */ +} + +#endif /* !FF_FS_READONLY */ + + + + +#if FF_USE_FASTSEEK +/*-----------------------------------------------------------------------*/ +/* FAT handling - Convert offset into cluster with link map table */ +/*-----------------------------------------------------------------------*/ + +static DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */ + FIL* fp, /* Pointer to the file object */ + FSIZE_t ofs /* File offset to be converted to cluster# */ +) +{ + DWORD cl, ncl, *tbl; + FATFS *fs = fp->obj.fs; + + + tbl = fp->cltbl + 1; /* Top of CLMT */ + cl = (DWORD)(ofs / SS(fs) / fs->csize); /* Cluster order from top of the file */ + for (;;) { + ncl = *tbl++; /* Number of cluters in the fragment */ + if (ncl == 0) return 0; /* End of table? (error) */ + if (cl < ncl) break; /* In this fragment? */ + cl -= ncl; tbl++; /* Next fragment */ + } + return cl + *tbl; /* Return the cluster number */ +} + +#endif /* FF_USE_FASTSEEK */ + + + + +/*-----------------------------------------------------------------------*/ +/* Directory handling - Fill a cluster with zeros */ +/*-----------------------------------------------------------------------*/ + +#if !FF_FS_READONLY +static FRESULT dir_clear ( /* Returns FR_OK or FR_DISK_ERR */ + FATFS *fs, /* Filesystem object */ + DWORD clst /* Directory table to clear */ +) +{ + LBA_t sect; + UINT n, szb; + BYTE *ibuf; + + + if (sync_window(fs) != FR_OK) return FR_DISK_ERR; /* Flush disk access window */ + sect = clst2sect(fs, clst); /* Top of the cluster */ + fs->winsect = sect; /* Set window to top of the cluster */ + mem_set(fs->win, 0, sizeof fs->win); /* Clear window buffer */ +#if FF_USE_LFN == 3 /* Quick table clear by using multi-secter write */ + /* Allocate a temporary buffer */ + for (szb = ((DWORD)fs->csize * SS(fs) >= MAX_MALLOC) ? MAX_MALLOC : fs->csize * SS(fs), ibuf = 0; szb > SS(fs) && (ibuf = ff_memalloc(szb)) == 0; szb /= 2) ; + if (szb > SS(fs)) { /* Buffer allocated? */ + mem_set(ibuf, 0, szb); + szb /= SS(fs); /* Bytes -> Sectors */ + for (n = 0; n < fs->csize && disk_write(fs->pdrv, ibuf, sect + n, szb) == RES_OK; n += szb) ; /* Fill the cluster with 0 */ + ff_memfree(ibuf); + } else +#endif + { + ibuf = fs->win; szb = 1; /* Use window buffer (many single-sector writes may take a time) */ + for (n = 0; n < fs->csize && disk_write(fs->pdrv, ibuf, sect + n, szb) == RES_OK; n += szb) ; /* Fill the cluster with 0 */ + } + return (n == fs->csize) ? FR_OK : FR_DISK_ERR; +} +#endif /* !FF_FS_READONLY */ + + + + +/*-----------------------------------------------------------------------*/ +/* Directory handling - Set directory index */ +/*-----------------------------------------------------------------------*/ + +static FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */ + DIR* dp, /* Pointer to directory object */ + DWORD ofs /* Offset of directory table */ +) +{ + DWORD csz, clst; + FATFS *fs = dp->obj.fs; + + + if (ofs >= (DWORD)((FF_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR) || ofs % SZDIRE) { /* Check range of offset and alignment */ + return FR_INT_ERR; + } + dp->dptr = ofs; /* Set current offset */ + clst = dp->obj.sclust; /* Table start cluster (0:root) */ + if (clst == 0 && fs->fs_type >= FS_FAT32) { /* Replace cluster# 0 with root cluster# */ + clst = (DWORD)fs->dirbase; + if (FF_FS_EXFAT) dp->obj.stat = 0; /* exFAT: Root dir has an FAT chain */ + } + + if (clst == 0) { /* Static table (root-directory on the FAT volume) */ + if (ofs / SZDIRE >= fs->n_rootdir) return FR_INT_ERR; /* Is index out of range? */ + dp->sect = fs->dirbase; + + } else { /* Dynamic table (sub-directory or root-directory on the FAT32/exFAT volume) */ + csz = (DWORD)fs->csize * SS(fs); /* Bytes per cluster */ + while (ofs >= csz) { /* Follow cluster chain */ + clst = get_fat(&dp->obj, clst); /* Get next cluster */ + if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */ + if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Reached to end of table or internal error */ + ofs -= csz; + } + dp->sect = clst2sect(fs, clst); + } + dp->clust = clst; /* Current cluster# */ + if (dp->sect == 0) return FR_INT_ERR; + dp->sect += ofs / SS(fs); /* Sector# of the directory entry */ + dp->dir = fs->win + (ofs % SS(fs)); /* Pointer to the entry in the win[] */ + + return FR_OK; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Directory handling - Move directory table index next */ +/*-----------------------------------------------------------------------*/ + +static FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */ + DIR* dp, /* Pointer to the directory object */ + int stretch /* 0: Do not stretch table, 1: Stretch table if needed */ +) +{ + DWORD ofs, clst; + FATFS *fs = dp->obj.fs; + + + ofs = dp->dptr + SZDIRE; /* Next entry */ + if (ofs >= (DWORD)((FF_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR)) dp->sect = 0; /* Disable it if the offset reached the max value */ + if (dp->sect == 0) return FR_NO_FILE; /* Report EOT if it has been disabled */ + + if (ofs % SS(fs) == 0) { /* Sector changed? */ + dp->sect++; /* Next sector */ + + if (dp->clust == 0) { /* Static table */ + if (ofs / SZDIRE >= fs->n_rootdir) { /* Report EOT if it reached end of static table */ + dp->sect = 0; return FR_NO_FILE; + } + } + else { /* Dynamic table */ + if ((ofs / SS(fs) & (fs->csize - 1)) == 0) { /* Cluster changed? */ + clst = get_fat(&dp->obj, dp->clust); /* Get next cluster */ + if (clst <= 1) return FR_INT_ERR; /* Internal error */ + if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */ + if (clst >= fs->n_fatent) { /* It reached end of dynamic table */ +#if !FF_FS_READONLY + if (!stretch) { /* If no stretch, report EOT */ + dp->sect = 0; return FR_NO_FILE; + } + clst = create_chain(&dp->obj, dp->clust); /* Allocate a cluster */ + if (clst == 0) return FR_DENIED; /* No free cluster */ + if (clst == 1) return FR_INT_ERR; /* Internal error */ + if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */ + if (dir_clear(fs, clst) != FR_OK) return FR_DISK_ERR; /* Clean up the stretched table */ + if (FF_FS_EXFAT) dp->obj.stat |= 4; /* exFAT: The directory has been stretched */ +#else + if (!stretch) dp->sect = 0; /* (this line is to suppress compiler warning) */ + dp->sect = 0; return FR_NO_FILE; /* Report EOT */ +#endif + } + dp->clust = clst; /* Initialize data for new cluster */ + dp->sect = clst2sect(fs, clst); + } + } + } + dp->dptr = ofs; /* Current entry */ + dp->dir = fs->win + ofs % SS(fs); /* Pointer to the entry in the win[] */ + + return FR_OK; +} + + + + +#if !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Directory handling - Reserve a block of directory entries */ +/*-----------------------------------------------------------------------*/ + +static FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */ + DIR* dp, /* Pointer to the directory object */ + UINT nent /* Number of contiguous entries to allocate */ +) +{ + FRESULT res; + UINT n; + FATFS *fs = dp->obj.fs; + + + res = dir_sdi(dp, 0); + if (res == FR_OK) { + n = 0; + do { + res = move_window(fs, dp->sect); + if (res != FR_OK) break; +#if FF_FS_EXFAT + if ((fs->fs_type == FS_EXFAT) ? (int)((dp->dir[XDIR_Type] & 0x80) == 0) : (int)(dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0)) { +#else + if (dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0) { +#endif + if (++n == nent) break; /* A block of contiguous free entries is found */ + } else { + n = 0; /* Not a blank entry. Restart to search */ + } + res = dir_next(dp, 1); + } while (res == FR_OK); /* Next entry with table stretch enabled */ + } + + if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */ + return res; +} + +#endif /* !FF_FS_READONLY */ + + + + +/*-----------------------------------------------------------------------*/ +/* FAT: Directory handling - Load/Store start cluster number */ +/*-----------------------------------------------------------------------*/ + +static DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */ + FATFS* fs, /* Pointer to the fs object */ + const BYTE* dir /* Pointer to the key entry */ +) +{ + DWORD cl; + + cl = ld_word(dir + DIR_FstClusLO); + if (fs->fs_type == FS_FAT32) { + cl |= (DWORD)ld_word(dir + DIR_FstClusHI) << 16; + } + + return cl; +} + + +#if !FF_FS_READONLY +static void st_clust ( + FATFS* fs, /* Pointer to the fs object */ + BYTE* dir, /* Pointer to the key entry */ + DWORD cl /* Value to be set */ +) +{ + st_word(dir + DIR_FstClusLO, (WORD)cl); + if (fs->fs_type == FS_FAT32) { + st_word(dir + DIR_FstClusHI, (WORD)(cl >> 16)); + } +} +#endif + + + +#if FF_USE_LFN +/*--------------------------------------------------------*/ +/* FAT-LFN: Compare a part of file name with an LFN entry */ +/*--------------------------------------------------------*/ + +static int cmp_lfn ( /* 1:matched, 0:not matched */ + const WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */ + BYTE* dir /* Pointer to the directory entry containing the part of LFN */ +) +{ + UINT i, s; + WCHAR wc, uc; + + + if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */ + + i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */ + + for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */ + uc = ld_word(dir + LfnOfs[s]); /* Pick an LFN character */ + if (wc != 0) { + if (i >= FF_MAX_LFN + 1 || ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) { /* Compare it */ + return 0; /* Not matched */ + } + wc = uc; + } else { + if (uc != 0xFFFF) return 0; /* Check filler */ + } + } + + if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) return 0; /* Last segment matched but different length */ + + return 1; /* The part of LFN matched */ +} + + +#if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 || FF_USE_LABEL || FF_FS_EXFAT +/*-----------------------------------------------------*/ +/* FAT-LFN: Pick a part of file name from an LFN entry */ +/*-----------------------------------------------------*/ + +static int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */ + WCHAR* lfnbuf, /* Pointer to the LFN working buffer */ + BYTE* dir /* Pointer to the LFN entry */ +) +{ + UINT i, s; + WCHAR wc, uc; + + + if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO is 0 */ + + i = ((dir[LDIR_Ord] & ~LLEF) - 1) * 13; /* Offset in the LFN buffer */ + + for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */ + uc = ld_word(dir + LfnOfs[s]); /* Pick an LFN character */ + if (wc != 0) { + if (i >= FF_MAX_LFN + 1) return 0; /* Buffer overflow? */ + lfnbuf[i++] = wc = uc; /* Store it */ + } else { + if (uc != 0xFFFF) return 0; /* Check filler */ + } + } + + if (dir[LDIR_Ord] & LLEF && wc != 0) { /* Put terminator if it is the last LFN part and not terminated */ + if (i >= FF_MAX_LFN + 1) return 0; /* Buffer overflow? */ + lfnbuf[i] = 0; + } + + return 1; /* The part of LFN is valid */ +} +#endif + + +#if !FF_FS_READONLY +/*-----------------------------------------*/ +/* FAT-LFN: Create an entry of LFN entries */ +/*-----------------------------------------*/ + +static void put_lfn ( + const WCHAR* lfn, /* Pointer to the LFN */ + BYTE* dir, /* Pointer to the LFN entry to be created */ + BYTE ord, /* LFN order (1-20) */ + BYTE sum /* Checksum of the corresponding SFN */ +) +{ + UINT i, s; + WCHAR wc; + + + dir[LDIR_Chksum] = sum; /* Set checksum */ + dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */ + dir[LDIR_Type] = 0; + st_word(dir + LDIR_FstClusLO, 0); + + i = (ord - 1) * 13; /* Get offset in the LFN working buffer */ + s = wc = 0; + do { + if (wc != 0xFFFF) wc = lfn[i++]; /* Get an effective character */ + st_word(dir + LfnOfs[s], wc); /* Put it */ + if (wc == 0) wc = 0xFFFF; /* Padding characters for following items */ + } while (++s < 13); + if (wc == 0xFFFF || !lfn[i]) ord |= LLEF; /* Last LFN part is the start of LFN sequence */ + dir[LDIR_Ord] = ord; /* Set the LFN order */ +} + +#endif /* !FF_FS_READONLY */ +#endif /* FF_USE_LFN */ + + + +#if FF_USE_LFN && !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* FAT-LFN: Create a Numbered SFN */ +/*-----------------------------------------------------------------------*/ + +static void gen_numname ( + BYTE* dst, /* Pointer to the buffer to store numbered SFN */ + const BYTE* src, /* Pointer to SFN */ + const WCHAR* lfn, /* Pointer to LFN */ + UINT seq /* Sequence number */ +) +{ + BYTE ns[8], c; + UINT i, j; + WCHAR wc; + DWORD sreg; + + + mem_cpy(dst, src, 11); + + if (seq > 5) { /* In case of many collisions, generate a hash number instead of sequential number */ + sreg = seq; + while (*lfn) { /* Create a CRC as hash value */ + wc = *lfn++; + for (i = 0; i < 16; i++) { + sreg = (sreg << 1) + (wc & 1); + wc >>= 1; + if (sreg & 0x10000) sreg ^= 0x11021; + } + } + seq = (UINT)sreg; + } + + /* itoa (hexdecimal) */ + i = 7; + do { + c = (BYTE)((seq % 16) + '0'); + if (c > '9') c += 7; + ns[i--] = c; + seq /= 16; + } while (seq); + ns[i] = '~'; + + /* Append the number to the SFN body */ + for (j = 0; j < i && dst[j] != ' '; j++) { + if (dbc_1st(dst[j])) { + if (j == i - 1) break; + j++; + } + } + do { + dst[j++] = (i < 8) ? ns[i++] : ' '; + } while (j < 8); +} +#endif /* FF_USE_LFN && !FF_FS_READONLY */ + + + +#if FF_USE_LFN +/*-----------------------------------------------------------------------*/ +/* FAT-LFN: Calculate checksum of an SFN entry */ +/*-----------------------------------------------------------------------*/ + +static BYTE sum_sfn ( + const BYTE* dir /* Pointer to the SFN entry */ +) +{ + BYTE sum = 0; + UINT n = 11; + + do { + sum = (sum >> 1) + (sum << 7) + *dir++; + } while (--n); + return sum; +} + +#endif /* FF_USE_LFN */ + + + +#if FF_FS_EXFAT +/*-----------------------------------------------------------------------*/ +/* exFAT: Checksum */ +/*-----------------------------------------------------------------------*/ + +static WORD xdir_sum ( /* Get checksum of the directoly entry block */ + const BYTE* dir /* Directory entry block to be calculated */ +) +{ + UINT i, szblk; + WORD sum; + + + szblk = (dir[XDIR_NumSec] + 1) * SZDIRE; /* Number of bytes of the entry block */ + for (i = sum = 0; i < szblk; i++) { + if (i == XDIR_SetSum) { /* Skip 2-byte sum field */ + i++; + } else { + sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + dir[i]; + } + } + return sum; +} + + + +static WORD xname_sum ( /* Get check sum (to be used as hash) of the file name */ + const WCHAR* name /* File name to be calculated */ +) +{ + WCHAR chr; + WORD sum = 0; + + + while ((chr = *name++) != 0) { + chr = (WCHAR)ff_wtoupper(chr); /* File name needs to be up-case converted */ + sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr & 0xFF); + sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr >> 8); + } + return sum; +} + + +#if !FF_FS_READONLY && FF_USE_MKFS +static DWORD xsum32 ( /* Returns 32-bit checksum */ + BYTE dat, /* Byte to be calculated (byte-by-byte processing) */ + DWORD sum /* Previous sum value */ +) +{ + sum = ((sum & 1) ? 0x80000000 : 0) + (sum >> 1) + dat; + return sum; +} +#endif + + +#if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 +/*------------------------------------------------------*/ +/* exFAT: Get object information from a directory block */ +/*------------------------------------------------------*/ + +static void get_xfileinfo ( + BYTE* dirb, /* Pointer to the direcotry entry block 85+C0+C1s */ + FILINFO* fno /* Buffer to store the extracted file information */ +) +{ + WCHAR wc, hs; + UINT di, si, nc; + + /* Get file name from the entry block */ + si = SZDIRE * 2; /* 1st C1 entry */ + nc = 0; hs = 0; di = 0; + while (nc < dirb[XDIR_NumName]) { + if (si >= MAXDIRB(FF_MAX_LFN)) { di = 0; break; } /* Truncated directory block? */ + if ((si % SZDIRE) == 0) si += 2; /* Skip entry type field */ + wc = ld_word(dirb + si); si += 2; nc++; /* Get a character */ + if (hs == 0 && IsSurrogate(wc)) { /* Is it a surrogate? */ + hs = wc; continue; /* Get low surrogate */ + } + wc = put_utf((DWORD)hs << 16 | wc, &fno->fname[di], FF_LFN_BUF - di); /* Store it in API encoding */ + if (wc == 0) { di = 0; break; } /* Buffer overflow or wrong encoding? */ + di += wc; + hs = 0; + } + if (hs != 0) di = 0; /* Broken surrogate pair? */ + if (di == 0) fno->fname[di++] = '?'; /* Inaccessible object name? */ + fno->fname[di] = 0; /* Terminate the name */ + fno->altname[0] = 0; /* exFAT does not support SFN */ + + fno->fattrib = dirb[XDIR_Attr]; /* Attribute */ + fno->fsize = (fno->fattrib & AM_DIR) ? 0 : ld_qword(dirb + XDIR_FileSize); /* Size */ + fno->ftime = ld_word(dirb + XDIR_ModTime + 0); /* Time */ + fno->fdate = ld_word(dirb + XDIR_ModTime + 2); /* Date */ +} + +#endif /* FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 */ + + +/*-----------------------------------*/ +/* exFAT: Get a directry entry block */ +/*-----------------------------------*/ + +static FRESULT load_xdir ( /* FR_INT_ERR: invalid entry block */ + DIR* dp /* Reading direcotry object pointing top of the entry block to load */ +) +{ + FRESULT res; + UINT i, sz_ent; + BYTE* dirb = dp->obj.fs->dirbuf; /* Pointer to the on-memory direcotry entry block 85+C0+C1s */ + + + /* Load file-directory entry */ + res = move_window(dp->obj.fs, dp->sect); + if (res != FR_OK) return res; + if (dp->dir[XDIR_Type] != ET_FILEDIR) return FR_INT_ERR; /* Invalid order */ + mem_cpy(dirb + 0 * SZDIRE, dp->dir, SZDIRE); + sz_ent = (dirb[XDIR_NumSec] + 1) * SZDIRE; + if (sz_ent < 3 * SZDIRE || sz_ent > 19 * SZDIRE) return FR_INT_ERR; + + /* Load stream-extension entry */ + res = dir_next(dp, 0); + if (res == FR_NO_FILE) res = FR_INT_ERR; /* It cannot be */ + if (res != FR_OK) return res; + res = move_window(dp->obj.fs, dp->sect); + if (res != FR_OK) return res; + if (dp->dir[XDIR_Type] != ET_STREAM) return FR_INT_ERR; /* Invalid order */ + mem_cpy(dirb + 1 * SZDIRE, dp->dir, SZDIRE); + if (MAXDIRB(dirb[XDIR_NumName]) > sz_ent) return FR_INT_ERR; + + /* Load file-name entries */ + i = 2 * SZDIRE; /* Name offset to load */ + do { + res = dir_next(dp, 0); + if (res == FR_NO_FILE) res = FR_INT_ERR; /* It cannot be */ + if (res != FR_OK) return res; + res = move_window(dp->obj.fs, dp->sect); + if (res != FR_OK) return res; + if (dp->dir[XDIR_Type] != ET_FILENAME) return FR_INT_ERR; /* Invalid order */ + if (i < MAXDIRB(FF_MAX_LFN)) mem_cpy(dirb + i, dp->dir, SZDIRE); + } while ((i += SZDIRE) < sz_ent); + + /* Sanity check (do it for only accessible object) */ + if (i <= MAXDIRB(FF_MAX_LFN)) { + if (xdir_sum(dirb) != ld_word(dirb + XDIR_SetSum)) return FR_INT_ERR; + } + return FR_OK; +} + + +/*------------------------------------------------------------------*/ +/* exFAT: Initialize object allocation info with loaded entry block */ +/*------------------------------------------------------------------*/ + +static void init_alloc_info ( + FATFS* fs, /* Filesystem object */ + FFOBJID* obj /* Object allocation information to be initialized */ +) +{ + obj->sclust = ld_dword(fs->dirbuf + XDIR_FstClus); /* Start cluster */ + obj->objsize = ld_qword(fs->dirbuf + XDIR_FileSize); /* Size */ + obj->stat = fs->dirbuf[XDIR_GenFlags] & 2; /* Allocation status */ + obj->n_frag = 0; /* No last fragment info */ +} + + + +#if !FF_FS_READONLY || FF_FS_RPATH != 0 +/*------------------------------------------------*/ +/* exFAT: Load the object's directory entry block */ +/*------------------------------------------------*/ + +static FRESULT load_obj_xdir ( + DIR* dp, /* Blank directory object to be used to access containing direcotry */ + const FFOBJID* obj /* Object with its containing directory information */ +) +{ + FRESULT res; + + /* Open object containing directory */ + dp->obj.fs = obj->fs; + dp->obj.sclust = obj->c_scl; + dp->obj.stat = (BYTE)obj->c_size; + dp->obj.objsize = obj->c_size & 0xFFFFFF00; + dp->obj.n_frag = 0; + dp->blk_ofs = obj->c_ofs; + + res = dir_sdi(dp, dp->blk_ofs); /* Goto object's entry block */ + if (res == FR_OK) { + res = load_xdir(dp); /* Load the object's entry block */ + } + return res; +} +#endif + + +#if !FF_FS_READONLY +/*----------------------------------------*/ +/* exFAT: Store the directory entry block */ +/*----------------------------------------*/ + +static FRESULT store_xdir ( + DIR* dp /* Pointer to the direcotry object */ +) +{ + FRESULT res; + UINT nent; + BYTE* dirb = dp->obj.fs->dirbuf; /* Pointer to the direcotry entry block 85+C0+C1s */ + + /* Create set sum */ + st_word(dirb + XDIR_SetSum, xdir_sum(dirb)); + nent = dirb[XDIR_NumSec] + 1; + + /* Store the direcotry entry block to the directory */ + res = dir_sdi(dp, dp->blk_ofs); + while (res == FR_OK) { + res = move_window(dp->obj.fs, dp->sect); + if (res != FR_OK) break; + mem_cpy(dp->dir, dirb, SZDIRE); + dp->obj.fs->wflag = 1; + if (--nent == 0) break; + dirb += SZDIRE; + res = dir_next(dp, 0); + } + return (res == FR_OK || res == FR_DISK_ERR) ? res : FR_INT_ERR; +} + + + +/*-------------------------------------------*/ +/* exFAT: Create a new directory enrty block */ +/*-------------------------------------------*/ + +static void create_xdir ( + BYTE* dirb, /* Pointer to the direcotry entry block buffer */ + const WCHAR* lfn /* Pointer to the object name */ +) +{ + UINT i; + BYTE nc1, nlen; + WCHAR wc; + + + /* Create file-directory and stream-extension entry */ + mem_set(dirb, 0, 2 * SZDIRE); + dirb[0 * SZDIRE + XDIR_Type] = ET_FILEDIR; + dirb[1 * SZDIRE + XDIR_Type] = ET_STREAM; + + /* Create file-name entries */ + i = SZDIRE * 2; /* Top of file_name entries */ + nlen = nc1 = 0; wc = 1; + do { + dirb[i++] = ET_FILENAME; dirb[i++] = 0; + do { /* Fill name field */ + if (wc != 0 && (wc = lfn[nlen]) != 0) nlen++; /* Get a character if exist */ + st_word(dirb + i, wc); /* Store it */ + i += 2; + } while (i % SZDIRE != 0); + nc1++; + } while (lfn[nlen]); /* Fill next entry if any char follows */ + + dirb[XDIR_NumName] = nlen; /* Set name length */ + dirb[XDIR_NumSec] = 1 + nc1; /* Set secondary count (C0 + C1s) */ + st_word(dirb + XDIR_NameHash, xname_sum(lfn)); /* Set name hash */ +} + +#endif /* !FF_FS_READONLY */ +#endif /* FF_FS_EXFAT */ + + + +#if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 || FF_USE_LABEL || FF_FS_EXFAT +/*-----------------------------------------------------------------------*/ +/* Read an object from the directory */ +/*-----------------------------------------------------------------------*/ + +#define DIR_READ_FILE(dp) dir_read(dp, 0) +#define DIR_READ_LABEL(dp) dir_read(dp, 1) + +static FRESULT dir_read ( + DIR* dp, /* Pointer to the directory object */ + int vol /* Filtered by 0:file/directory or 1:volume label */ +) +{ + FRESULT res = FR_NO_FILE; + FATFS *fs = dp->obj.fs; + BYTE attr, b; +#if FF_USE_LFN + BYTE ord = 0xFF, sum = 0xFF; +#endif + + while (dp->sect) { + res = move_window(fs, dp->sect); + if (res != FR_OK) break; + b = dp->dir[DIR_Name]; /* Test for the entry type */ + if (b == 0) { + res = FR_NO_FILE; break; /* Reached to end of the directory */ + } +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ + if (FF_USE_LABEL && vol) { + if (b == ET_VLABEL) break; /* Volume label entry? */ + } else { + if (b == ET_FILEDIR) { /* Start of the file entry block? */ + dp->blk_ofs = dp->dptr; /* Get location of the block */ + res = load_xdir(dp); /* Load the entry block */ + if (res == FR_OK) { + dp->obj.attr = fs->dirbuf[XDIR_Attr] & AM_MASK; /* Get attribute */ + } + break; + } + } + } else +#endif + { /* On the FAT/FAT32 volume */ + dp->obj.attr = attr = dp->dir[DIR_Attr] & AM_MASK; /* Get attribute */ +#if FF_USE_LFN /* LFN configuration */ + if (b == DDEM || b == '.' || (int)((attr & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */ + ord = 0xFF; + } else { + if (attr == AM_LFN) { /* An LFN entry is found */ + if (b & LLEF) { /* Is it start of an LFN sequence? */ + sum = dp->dir[LDIR_Chksum]; + b &= (BYTE)~LLEF; ord = b; + dp->blk_ofs = dp->dptr; + } + /* Check LFN validity and capture it */ + ord = (b == ord && sum == dp->dir[LDIR_Chksum] && pick_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF; + } else { /* An SFN entry is found */ + if (ord != 0 || sum != sum_sfn(dp->dir)) { /* Is there a valid LFN? */ + dp->blk_ofs = 0xFFFFFFFF; /* It has no LFN. */ + } + break; + } + } +#else /* Non LFN configuration */ + if (b != DDEM && b != '.' && attr != AM_LFN && (int)((attr & ~AM_ARC) == AM_VOL) == vol) { /* Is it a valid entry? */ + break; + } +#endif + } + res = dir_next(dp, 0); /* Next entry */ + if (res != FR_OK) break; + } + + if (res != FR_OK) dp->sect = 0; /* Terminate the read operation on error or EOT */ + return res; +} + +#endif /* FF_FS_MINIMIZE <= 1 || FF_USE_LABEL || FF_FS_RPATH >= 2 */ + + + +/*-----------------------------------------------------------------------*/ +/* Directory handling - Find an object in the directory */ +/*-----------------------------------------------------------------------*/ + +static FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */ + DIR* dp /* Pointer to the directory object with the file name */ +) +{ + FRESULT res; + FATFS *fs = dp->obj.fs; + BYTE c; +#if FF_USE_LFN + BYTE a, ord, sum; +#endif + + res = dir_sdi(dp, 0); /* Rewind directory object */ + if (res != FR_OK) return res; +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ + BYTE nc; + UINT di, ni; + WORD hash = xname_sum(fs->lfnbuf); /* Hash value of the name to find */ + + while ((res = DIR_READ_FILE(dp)) == FR_OK) { /* Read an item */ +#if FF_MAX_LFN < 255 + if (fs->dirbuf[XDIR_NumName] > FF_MAX_LFN) continue; /* Skip comparison if inaccessible object name */ +#endif + if (ld_word(fs->dirbuf + XDIR_NameHash) != hash) continue; /* Skip comparison if hash mismatched */ + for (nc = fs->dirbuf[XDIR_NumName], di = SZDIRE * 2, ni = 0; nc; nc--, di += 2, ni++) { /* Compare the name */ + if ((di % SZDIRE) == 0) di += 2; + if (ff_wtoupper(ld_word(fs->dirbuf + di)) != ff_wtoupper(fs->lfnbuf[ni])) break; + } + if (nc == 0 && !fs->lfnbuf[ni]) break; /* Name matched? */ + } + return res; + } +#endif + /* On the FAT/FAT32 volume */ +#if FF_USE_LFN + ord = sum = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */ +#endif + do { + res = move_window(fs, dp->sect); + if (res != FR_OK) break; + c = dp->dir[DIR_Name]; + if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */ +#if FF_USE_LFN /* LFN configuration */ + dp->obj.attr = a = dp->dir[DIR_Attr] & AM_MASK; + if (c == DDEM || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */ + ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */ + } else { + if (a == AM_LFN) { /* An LFN entry is found */ + if (!(dp->fn[NSFLAG] & NS_NOLFN)) { + if (c & LLEF) { /* Is it start of LFN sequence? */ + sum = dp->dir[LDIR_Chksum]; + c &= (BYTE)~LLEF; ord = c; /* LFN start order */ + dp->blk_ofs = dp->dptr; /* Start offset of LFN */ + } + /* Check validity of the LFN entry and compare it with given name */ + ord = (c == ord && sum == dp->dir[LDIR_Chksum] && cmp_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF; + } + } else { /* An SFN entry is found */ + if (ord == 0 && sum == sum_sfn(dp->dir)) break; /* LFN matched? */ + if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dp->dir, dp->fn, 11)) break; /* SFN matched? */ + ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */ + } + } +#else /* Non LFN configuration */ + dp->obj.attr = dp->dir[DIR_Attr] & AM_MASK; + if (!(dp->dir[DIR_Attr] & AM_VOL) && !mem_cmp(dp->dir, dp->fn, 11)) break; /* Is it a valid entry? */ +#endif + res = dir_next(dp, 0); /* Next entry */ + } while (res == FR_OK); + + return res; +} + + + + +#if !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Register an object to the directory */ +/*-----------------------------------------------------------------------*/ + +static FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */ + DIR* dp /* Target directory with object name to be created */ +) +{ + FRESULT res; + FATFS *fs = dp->obj.fs; +#if FF_USE_LFN /* LFN configuration */ + UINT n, nlen, nent; + BYTE sn[12], sum; + + + if (dp->fn[NSFLAG] & (NS_DOT | NS_NONAME)) return FR_INVALID_NAME; /* Check name validity */ + for (nlen = 0; fs->lfnbuf[nlen]; nlen++) ; /* Get lfn length */ + +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ + nent = (nlen + 14) / 15 + 2; /* Number of entries to allocate (85+C0+C1s) */ + res = dir_alloc(dp, nent); /* Allocate directory entries */ + if (res != FR_OK) return res; + dp->blk_ofs = dp->dptr - SZDIRE * (nent - 1); /* Set the allocated entry block offset */ + + if (dp->obj.stat & 4) { /* Has the directory been stretched by new allocation? */ + dp->obj.stat &= ~4; + res = fill_first_frag(&dp->obj); /* Fill the first fragment on the FAT if needed */ + if (res != FR_OK) return res; + res = fill_last_frag(&dp->obj, dp->clust, 0xFFFFFFFF); /* Fill the last fragment on the FAT if needed */ + if (res != FR_OK) return res; + if (dp->obj.sclust != 0) { /* Is it a sub-directory? */ + DIR dj; + + res = load_obj_xdir(&dj, &dp->obj); /* Load the object status */ + if (res != FR_OK) return res; + dp->obj.objsize += (DWORD)fs->csize * SS(fs); /* Increase the directory size by cluster size */ + st_qword(fs->dirbuf + XDIR_FileSize, dp->obj.objsize); + st_qword(fs->dirbuf + XDIR_ValidFileSize, dp->obj.objsize); + fs->dirbuf[XDIR_GenFlags] = dp->obj.stat | 1; /* Update the allocation status */ + res = store_xdir(&dj); /* Store the object status */ + if (res != FR_OK) return res; + } + } + + create_xdir(fs->dirbuf, fs->lfnbuf); /* Create on-memory directory block to be written later */ + return FR_OK; + } +#endif + /* On the FAT/FAT32 volume */ + mem_cpy(sn, dp->fn, 12); + if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */ + dp->fn[NSFLAG] = NS_NOLFN; /* Find only SFN */ + for (n = 1; n < 100; n++) { + gen_numname(dp->fn, sn, fs->lfnbuf, n); /* Generate a numbered name */ + res = dir_find(dp); /* Check if the name collides with existing SFN */ + if (res != FR_OK) break; + } + if (n == 100) return FR_DENIED; /* Abort if too many collisions */ + if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */ + dp->fn[NSFLAG] = sn[NSFLAG]; + } + + /* Create an SFN with/without LFNs. */ + nent = (sn[NSFLAG] & NS_LFN) ? (nlen + 12) / 13 + 1 : 1; /* Number of entries to allocate */ + res = dir_alloc(dp, nent); /* Allocate entries */ + if (res == FR_OK && --nent) { /* Set LFN entry if needed */ + res = dir_sdi(dp, dp->dptr - nent * SZDIRE); + if (res == FR_OK) { + sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */ + do { /* Store LFN entries in bottom first */ + res = move_window(fs, dp->sect); + if (res != FR_OK) break; + put_lfn(fs->lfnbuf, dp->dir, (BYTE)nent, sum); + fs->wflag = 1; + res = dir_next(dp, 0); /* Next entry */ + } while (res == FR_OK && --nent); + } + } + +#else /* Non LFN configuration */ + res = dir_alloc(dp, 1); /* Allocate an entry for SFN */ + +#endif + + /* Set SFN entry */ + if (res == FR_OK) { + res = move_window(fs, dp->sect); + if (res == FR_OK) { + mem_set(dp->dir, 0, SZDIRE); /* Clean the entry */ + mem_cpy(dp->dir + DIR_Name, dp->fn, 11); /* Put SFN */ +#if FF_USE_LFN + dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY | NS_EXT); /* Put NT flag */ +#endif + fs->wflag = 1; + } + } + + return res; +} + +#endif /* !FF_FS_READONLY */ + + + +#if !FF_FS_READONLY && FF_FS_MINIMIZE == 0 +/*-----------------------------------------------------------------------*/ +/* Remove an object from the directory */ +/*-----------------------------------------------------------------------*/ + +static FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */ + DIR* dp /* Directory object pointing the entry to be removed */ +) +{ + FRESULT res; + FATFS *fs = dp->obj.fs; +#if FF_USE_LFN /* LFN configuration */ + DWORD last = dp->dptr; + + res = (dp->blk_ofs == 0xFFFFFFFF) ? FR_OK : dir_sdi(dp, dp->blk_ofs); /* Goto top of the entry block if LFN is exist */ + if (res == FR_OK) { + do { + res = move_window(fs, dp->sect); + if (res != FR_OK) break; + if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ + dp->dir[XDIR_Type] &= 0x7F; /* Clear the entry InUse flag. */ + } else { /* On the FAT/FAT32 volume */ + dp->dir[DIR_Name] = DDEM; /* Mark the entry 'deleted'. */ + } + fs->wflag = 1; + if (dp->dptr >= last) break; /* If reached last entry then all entries of the object has been deleted. */ + res = dir_next(dp, 0); /* Next entry */ + } while (res == FR_OK); + if (res == FR_NO_FILE) res = FR_INT_ERR; + } +#else /* Non LFN configuration */ + + res = move_window(fs, dp->sect); + if (res == FR_OK) { + dp->dir[DIR_Name] = DDEM; /* Mark the entry 'deleted'.*/ + fs->wflag = 1; + } +#endif + + return res; +} + +#endif /* !FF_FS_READONLY && FF_FS_MINIMIZE == 0 */ + + + +#if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 +/*-----------------------------------------------------------------------*/ +/* Get file information from directory entry */ +/*-----------------------------------------------------------------------*/ + +static void get_fileinfo ( + DIR* dp, /* Pointer to the directory object */ + FILINFO* fno /* Pointer to the file information to be filled */ +) +{ + UINT si, di; +#if FF_USE_LFN + BYTE lcf; + WCHAR wc, hs; + FATFS *fs = dp->obj.fs; +#else + TCHAR c; +#endif + + + fno->fname[0] = 0; /* Invaidate file info */ + if (dp->sect == 0) return; /* Exit if read pointer has reached end of directory */ + +#if FF_USE_LFN /* LFN configuration */ +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ + get_xfileinfo(fs->dirbuf, fno); + return; + } else +#endif + { /* On the FAT/FAT32 volume */ + if (dp->blk_ofs != 0xFFFFFFFF) { /* Get LFN if available */ + si = di = hs = 0; + while (fs->lfnbuf[si] != 0) { + wc = fs->lfnbuf[si++]; /* Get an LFN character (UTF-16) */ + if (hs == 0 && IsSurrogate(wc)) { /* Is it a surrogate? */ + hs = wc; continue; /* Get low surrogate */ + } + wc = put_utf((DWORD)hs << 16 | wc, &fno->fname[di], FF_LFN_BUF - di); /* Store it in UTF-16 or UTF-8 encoding */ + if (wc == 0) { di = 0; break; } /* Invalid char or buffer overflow? */ + di += wc; + hs = 0; + } + if (hs != 0) di = 0; /* Broken surrogate pair? */ + fno->fname[di] = 0; /* Terminate the LFN (null string means LFN is invalid) */ + } + } + + si = di = 0; + while (si < 11) { /* Get SFN from SFN entry */ + wc = dp->dir[si++]; /* Get a char */ + if (wc == ' ') continue; /* Skip padding spaces */ + if (wc == RDDEM) wc = DDEM; /* Restore replaced DDEM character */ + if (si == 9 && di < FF_SFN_BUF) fno->altname[di++] = '.'; /* Insert a . if extension is exist */ +#if FF_LFN_UNICODE >= 1 /* Unicode output */ + if (dbc_1st((BYTE)wc) && si != 8 && si != 11 && dbc_2nd(dp->dir[si])) { /* Make a DBC if needed */ + wc = wc << 8 | dp->dir[si++]; + } + wc = ff_oem2uni(wc, CODEPAGE); /* ANSI/OEM -> Unicode */ + if (wc == 0) { di = 0; break; } /* Wrong char in the current code page? */ + wc = put_utf(wc, &fno->altname[di], FF_SFN_BUF - di); /* Store it in Unicode */ + if (wc == 0) { di = 0; break; } /* Buffer overflow? */ + di += wc; +#else /* ANSI/OEM output */ + fno->altname[di++] = (TCHAR)wc; /* Store it without any conversion */ +#endif + } + fno->altname[di] = 0; /* Terminate the SFN (null string means SFN is invalid) */ + + if (fno->fname[0] == 0) { /* If LFN is invalid, altname[] needs to be copied to fname[] */ + if (di == 0) { /* If LFN and SFN both are invalid, this object is inaccesible */ + fno->fname[di++] = '?'; + } else { + for (si = di = 0, lcf = NS_BODY; fno->altname[si]; si++, di++) { /* Copy altname[] to fname[] with case information */ + wc = (WCHAR)fno->altname[si]; + if (wc == '.') lcf = NS_EXT; + if (IsUpper(wc) && (dp->dir[DIR_NTres] & lcf)) wc += 0x20; + fno->fname[di] = (TCHAR)wc; + } + } + fno->fname[di] = 0; /* Terminate the LFN */ + if (!dp->dir[DIR_NTres]) fno->altname[0] = 0; /* Altname is not needed if neither LFN nor case info is exist. */ + } + +#else /* Non-LFN configuration */ + si = di = 0; + while (si < 11) { /* Copy name body and extension */ + c = (TCHAR)dp->dir[si++]; + if (c == ' ') continue; /* Skip padding spaces */ + if (c == RDDEM) c = DDEM; /* Restore replaced DDEM character */ + if (si == 9) fno->fname[di++] = '.';/* Insert a . if extension is exist */ + fno->fname[di++] = c; + } + fno->fname[di] = 0; +#endif + + fno->fattrib = dp->dir[DIR_Attr]; /* Attribute */ + fno->fsize = ld_dword(dp->dir + DIR_FileSize); /* Size */ + fno->ftime = ld_word(dp->dir + DIR_ModTime + 0); /* Time */ + fno->fdate = ld_word(dp->dir + DIR_ModTime + 2); /* Date */ +} + +#endif /* FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 */ + + + +#if FF_USE_FIND && FF_FS_MINIMIZE <= 1 +/*-----------------------------------------------------------------------*/ +/* Pattern matching */ +/*-----------------------------------------------------------------------*/ + +static DWORD get_achar ( /* Get a character and advances ptr */ + const TCHAR** ptr /* Pointer to pointer to the ANSI/OEM or Unicode string */ +) +{ + DWORD chr; + + +#if FF_USE_LFN && FF_LFN_UNICODE >= 1 /* Unicode input */ + chr = tchar2uni(ptr); + if (chr == 0xFFFFFFFF) chr = 0; /* Wrong UTF encoding is recognized as end of the string */ + chr = ff_wtoupper(chr); + +#else /* ANSI/OEM input */ + chr = (BYTE)*(*ptr)++; /* Get a byte */ + if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */ +#if FF_CODE_PAGE == 0 + if (ExCvt && chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */ +#elif FF_CODE_PAGE < 900 + if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */ +#endif +#if FF_CODE_PAGE == 0 || FF_CODE_PAGE >= 900 + if (dbc_1st((BYTE)chr)) { /* Get DBC 2nd byte if needed */ + chr = dbc_2nd((BYTE)**ptr) ? chr << 8 | (BYTE)*(*ptr)++ : 0; + } +#endif + +#endif + return chr; +} + + +static int pattern_matching ( /* 0:not matched, 1:matched */ + const TCHAR* pat, /* Matching pattern */ + const TCHAR* nam, /* String to be tested */ + int skip, /* Number of pre-skip chars (number of ?s) */ + int inf /* Infinite search (* specified) */ +) +{ + const TCHAR *pp, *np; + DWORD pc, nc; + int nm, nx; + + + while (skip--) { /* Pre-skip name chars */ + if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */ + } + if (*pat == 0 && inf) return 1; /* (short circuit) */ + + do { + pp = pat; np = nam; /* Top of pattern and name to match */ + for (;;) { + if (*pp == '?' || *pp == '*') { /* Wildcard? */ + nm = nx = 0; + do { /* Analyze the wildcard block */ + if (*pp++ == '?') nm++; else nx = 1; + } while (*pp == '?' || *pp == '*'); + if (pattern_matching(pp, np, nm, nx)) return 1; /* Test new branch (recurs upto number of wildcard blocks in the pattern) */ + nc = *np; break; /* Branch mismatched */ + } + pc = get_achar(&pp); /* Get a pattern char */ + nc = get_achar(&np); /* Get a name char */ + if (pc != nc) break; /* Branch mismatched? */ + if (pc == 0) return 1; /* Branch matched? (matched at end of both strings) */ + } + get_achar(&nam); /* nam++ */ + } while (inf && nc); /* Retry until end of name if infinite search is specified */ + + return 0; +} + +#endif /* FF_USE_FIND && FF_FS_MINIMIZE <= 1 */ + + + +/*-----------------------------------------------------------------------*/ +/* Pick a top segment and create the object name in directory form */ +/*-----------------------------------------------------------------------*/ + +static FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */ + DIR* dp, /* Pointer to the directory object */ + const TCHAR** path /* Pointer to pointer to the segment in the path string */ +) +{ +#if FF_USE_LFN /* LFN configuration */ + BYTE b, cf; + WCHAR wc, *lfn; + DWORD uc; + UINT i, ni, si, di; + const TCHAR *p; + + + /* Create LFN into LFN working buffer */ + p = *path; lfn = dp->obj.fs->lfnbuf; di = 0; + for (;;) { + uc = tchar2uni(&p); /* Get a character */ + if (uc == 0xFFFFFFFF) return FR_INVALID_NAME; /* Invalid code or UTF decode error */ + if (uc >= 0x10000) lfn[di++] = (WCHAR)(uc >> 16); /* Store high surrogate if needed */ + wc = (WCHAR)uc; + if (wc < ' ' || wc == '/' || wc == '\\') break; /* Break if end of the path or a separator is found */ + if (wc < 0x80 && chk_chr("\"*:<>\?|\x7F", wc)) return FR_INVALID_NAME; /* Reject illegal characters for LFN */ + if (di >= FF_MAX_LFN) return FR_INVALID_NAME; /* Reject too long name */ + lfn[di++] = wc; /* Store the Unicode character */ + } + if (wc < ' ') { /* End of path? */ + cf = NS_LAST; /* Set last segment flag */ + } else { + cf = 0; /* Next segment follows */ + while (*p == '/' || *p == '\\') p++; /* Skip duplicated separators if exist */ + } + *path = p; /* Return pointer to the next segment */ + +#if FF_FS_RPATH != 0 + if ((di == 1 && lfn[di - 1] == '.') || + (di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot name? */ + lfn[di] = 0; + for (i = 0; i < 11; i++) { /* Create dot name for SFN entry */ + dp->fn[i] = (i < di) ? '.' : ' '; + } + dp->fn[i] = cf | NS_DOT; /* This is a dot entry */ + return FR_OK; + } +#endif + while (di) { /* Snip off trailing spaces and dots if exist */ + wc = lfn[di - 1]; + if (wc != ' ' && wc != '.') break; + di--; + } + lfn[di] = 0; /* LFN is created into the working buffer */ + if (di == 0) return FR_INVALID_NAME; /* Reject null name */ + + /* Create SFN in directory form */ + for (si = 0; lfn[si] == ' '; si++) ; /* Remove leading spaces */ + if (si > 0 || lfn[si] == '.') cf |= NS_LOSS | NS_LFN; /* Is there any leading space or dot? */ + while (di > 0 && lfn[di - 1] != '.') di--; /* Find last dot (di<=si: no extension) */ + + mem_set(dp->fn, ' ', 11); + i = b = 0; ni = 8; + for (;;) { + wc = lfn[si++]; /* Get an LFN character */ + if (wc == 0) break; /* Break on end of the LFN */ + if (wc == ' ' || (wc == '.' && si != di)) { /* Remove embedded spaces and dots */ + cf |= NS_LOSS | NS_LFN; + continue; + } + + if (i >= ni || si == di) { /* End of field? */ + if (ni == 11) { /* Name extension overflow? */ + cf |= NS_LOSS | NS_LFN; + break; + } + if (si != di) cf |= NS_LOSS | NS_LFN; /* Name body overflow? */ + if (si > di) break; /* No name extension? */ + si = di; i = 8; ni = 11; b <<= 2; /* Enter name extension */ + continue; + } + + if (wc >= 0x80) { /* Is this a non-ASCII character? */ + cf |= NS_LFN; /* LFN entry needs to be created */ +#if FF_CODE_PAGE == 0 + if (ExCvt) { /* At SBCS */ + wc = ff_uni2oem(wc, CODEPAGE); /* Unicode ==> ANSI/OEM code */ + if (wc & 0x80) wc = ExCvt[wc & 0x7F]; /* Convert extended character to upper (SBCS) */ + } else { /* At DBCS */ + wc = ff_uni2oem(ff_wtoupper(wc), CODEPAGE); /* Unicode ==> Upper convert ==> ANSI/OEM code */ + } +#elif FF_CODE_PAGE < 900 /* SBCS cfg */ + wc = ff_uni2oem(wc, CODEPAGE); /* Unicode ==> ANSI/OEM code */ + if (wc & 0x80) wc = ExCvt[wc & 0x7F]; /* Convert extended character to upper (SBCS) */ +#else /* DBCS cfg */ + wc = ff_uni2oem(ff_wtoupper(wc), CODEPAGE); /* Unicode ==> Upper convert ==> ANSI/OEM code */ +#endif + } + + if (wc >= 0x100) { /* Is this a DBC? */ + if (i >= ni - 1) { /* Field overflow? */ + cf |= NS_LOSS | NS_LFN; + i = ni; continue; /* Next field */ + } + dp->fn[i++] = (BYTE)(wc >> 8); /* Put 1st byte */ + } else { /* SBC */ + if (wc == 0 || chk_chr("+,;=[]", wc)) { /* Replace illegal characters for SFN if needed */ + wc = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */ + } else { + if (IsUpper(wc)) { /* ASCII upper case? */ + b |= 2; + } + if (IsLower(wc)) { /* ASCII lower case? */ + b |= 1; wc -= 0x20; + } + } + } + dp->fn[i++] = (BYTE)wc; + } + + if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */ + + if (ni == 8) b <<= 2; /* Shift capital flags if no extension */ + if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) cf |= NS_LFN; /* LFN entry needs to be created if composite capitals */ + if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */ + if (b & 0x01) cf |= NS_EXT; /* NT flag (Extension has small capital letters only) */ + if (b & 0x04) cf |= NS_BODY; /* NT flag (Body has small capital letters only) */ + } + + dp->fn[NSFLAG] = cf; /* SFN is created into dp->fn[] */ + + return FR_OK; + + +#else /* FF_USE_LFN : Non-LFN configuration */ + BYTE c, d, *sfn; + UINT ni, si, i; + const char *p; + + /* Create file name in directory form */ + p = *path; sfn = dp->fn; + mem_set(sfn, ' ', 11); + si = i = 0; ni = 8; +#if FF_FS_RPATH != 0 + if (p[si] == '.') { /* Is this a dot entry? */ + for (;;) { + c = (BYTE)p[si++]; + if (c != '.' || si >= 3) break; + sfn[i++] = c; + } + if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME; + *path = p + si; /* Return pointer to the next segment */ + sfn[NSFLAG] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of the path */ + return FR_OK; + } +#endif + for (;;) { + c = (BYTE)p[si++]; /* Get a byte */ + if (c <= ' ') break; /* Break if end of the path name */ + if (c == '/' || c == '\\') { /* Break if a separator is found */ + while (p[si] == '/' || p[si] == '\\') si++; /* Skip duplicated separator if exist */ + break; + } + if (c == '.' || i >= ni) { /* End of body or field overflow? */ + if (ni == 11 || c != '.') return FR_INVALID_NAME; /* Field overflow or invalid dot? */ + i = 8; ni = 11; /* Enter file extension field */ + continue; + } +#if FF_CODE_PAGE == 0 + if (ExCvt && c >= 0x80) { /* Is SBC extended character? */ + c = ExCvt[c & 0x7F]; /* To upper SBC extended character */ + } +#elif FF_CODE_PAGE < 900 + if (c >= 0x80) { /* Is SBC extended character? */ + c = ExCvt[c & 0x7F]; /* To upper SBC extended character */ + } +#endif + if (dbc_1st(c)) { /* Check if it is a DBC 1st byte */ + d = (BYTE)p[si++]; /* Get 2nd byte */ + if (!dbc_2nd(d) || i >= ni - 1) return FR_INVALID_NAME; /* Reject invalid DBC */ + sfn[i++] = c; + sfn[i++] = d; + } else { /* SBC */ + if (chk_chr("\"*+,:;<=>\?[]|\x7F", c)) return FR_INVALID_NAME; /* Reject illegal chrs for SFN */ + if (IsLower(c)) c -= 0x20; /* To upper */ + sfn[i++] = c; + } + } + *path = p + si; /* Return pointer to the next segment */ + if (i == 0) return FR_INVALID_NAME; /* Reject nul string */ + + if (sfn[0] == DDEM) sfn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */ + sfn[NSFLAG] = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of the path */ + + return FR_OK; +#endif /* FF_USE_LFN */ +} + + + + +/*-----------------------------------------------------------------------*/ +/* Follow a file path */ +/*-----------------------------------------------------------------------*/ + +static FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */ + DIR* dp, /* Directory object to return last directory and found object */ + const TCHAR* path /* Full-path string to find a file or directory */ +) +{ + FRESULT res; + BYTE ns; + FATFS *fs = dp->obj.fs; + + +#if FF_FS_RPATH != 0 + if (*path != '/' && *path != '\\') { /* Without heading separator */ + dp->obj.sclust = fs->cdir; /* Start from current directory */ + } else +#endif + { /* With heading separator */ + while (*path == '/' || *path == '\\') path++; /* Strip heading separator */ + dp->obj.sclust = 0; /* Start from root directory */ + } +#if FF_FS_EXFAT + dp->obj.n_frag = 0; /* Invalidate last fragment counter of the object */ +#if FF_FS_RPATH != 0 + if (fs->fs_type == FS_EXFAT && dp->obj.sclust) { /* exFAT: Retrieve the sub-directory's status */ + DIR dj; + + dp->obj.c_scl = fs->cdc_scl; + dp->obj.c_size = fs->cdc_size; + dp->obj.c_ofs = fs->cdc_ofs; + res = load_obj_xdir(&dj, &dp->obj); + if (res != FR_OK) return res; + dp->obj.objsize = ld_dword(fs->dirbuf + XDIR_FileSize); + dp->obj.stat = fs->dirbuf[XDIR_GenFlags] & 2; + } +#endif +#endif + + if ((UINT)*path < ' ') { /* Null path name is the origin directory itself */ + dp->fn[NSFLAG] = NS_NONAME; + res = dir_sdi(dp, 0); + + } else { /* Follow path */ + for (;;) { + res = create_name(dp, &path); /* Get a segment name of the path */ + if (res != FR_OK) break; + res = dir_find(dp); /* Find an object with the segment name */ + ns = dp->fn[NSFLAG]; + if (res != FR_OK) { /* Failed to find the object */ + if (res == FR_NO_FILE) { /* Object is not found */ + if (FF_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, stay there */ + if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */ + dp->fn[NSFLAG] = NS_NONAME; + res = FR_OK; + } else { /* Could not find the object */ + if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */ + } + } + break; + } + if (ns & NS_LAST) break; /* Last segment matched. Function completed. */ + /* Get into the sub-directory */ + if (!(dp->obj.attr & AM_DIR)) { /* It is not a sub-directory and cannot follow */ + res = FR_NO_PATH; break; + } +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* Save containing directory information for next dir */ + dp->obj.c_scl = dp->obj.sclust; + dp->obj.c_size = ((DWORD)dp->obj.objsize & 0xFFFFFF00) | dp->obj.stat; + dp->obj.c_ofs = dp->blk_ofs; + init_alloc_info(fs, &dp->obj); /* Open next directory */ + } else +#endif + { + dp->obj.sclust = ld_clust(fs, fs->win + dp->dptr % SS(fs)); /* Open next directory */ + } + } + } + + return res; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Get logical drive number from path name */ +/*-----------------------------------------------------------------------*/ + +static int get_ldnumber ( /* Returns logical drive number (-1:invalid drive number or null pointer) */ + const TCHAR** path /* Pointer to pointer to the path name */ +) +{ + const TCHAR *tp, *tt; + TCHAR tc; + int i, vol = -1; +#if FF_STR_VOLUME_ID /* Find string volume ID */ + const char *sp; + char c; +#endif + + tt = tp = *path; + if (!tp) return vol; /* Invalid path name? */ + do tc = *tt++; while ((UINT)tc >= (FF_USE_LFN ? ' ' : '!') && tc != ':'); /* Find a colon in the path */ + + if (tc == ':') { /* DOS/Windows style volume ID? */ + i = FF_VOLUMES; + if (IsDigit(*tp) && tp + 2 == tt) { /* Is there a numeric volume ID + colon? */ + i = (int)*tp - '0'; /* Get the LD number */ + } +#if FF_STR_VOLUME_ID == 1 /* Arbitrary string is enabled */ + else { + i = 0; + do { + sp = VolumeStr[i]; tp = *path; /* This string volume ID and path name */ + do { /* Compare the volume ID with path name */ + c = *sp++; tc = *tp++; + if (IsLower(c)) c -= 0x20; + if (IsLower(tc)) tc -= 0x20; + } while (c && (TCHAR)c == tc); + } while ((c || tp != tt) && ++i < FF_VOLUMES); /* Repeat for each id until pattern match */ + } +#endif + if (i < FF_VOLUMES) { /* If a volume ID is found, get the drive number and strip it */ + vol = i; /* Drive number */ + *path = tt; /* Snip the drive prefix off */ + } + return vol; + } +#if FF_STR_VOLUME_ID == 2 /* Unix style volume ID is enabled */ + if (*tp == '/') { + i = 0; + do { + sp = VolumeStr[i]; tp = *path; /* This string volume ID and path name */ + do { /* Compare the volume ID with path name */ + c = *sp++; tc = *(++tp); + if (IsLower(c)) c -= 0x20; + if (IsLower(tc)) tc -= 0x20; + } while (c && (TCHAR)c == tc); + } while ((c || (tc != '/' && (UINT)tc >= (FF_USE_LFN ? ' ' : '!'))) && ++i < FF_VOLUMES); /* Repeat for each ID until pattern match */ + if (i < FF_VOLUMES) { /* If a volume ID is found, get the drive number and strip it */ + vol = i; /* Drive number */ + *path = tp; /* Snip the drive prefix off */ + return vol; + } + } +#endif + /* No drive prefix is found */ +#if FF_FS_RPATH != 0 + vol = CurrVol; /* Default drive is current drive */ +#else + vol = 0; /* Default drive is 0 */ +#endif + return vol; /* Return the default drive */ +} + + + + +/*-----------------------------------------------------------------------*/ +/* GPT support functions */ +/*-----------------------------------------------------------------------*/ + +#if FF_LBA64 + +/* Calculate CRC32 in byte-by-byte */ + +static DWORD crc32 ( /* Returns next CRC value */ + DWORD crc, /* Current CRC value */ + BYTE d /* A byte to be processed */ +) +{ + BYTE b; + + + for (b = 1; b; b <<= 1) { + crc ^= (d & b) ? 1 : 0; + crc = (crc & 1) ? crc >> 1 ^ 0xEDB88320 : crc >> 1; + } + return crc; +} + + +/* Check validity of GPT header */ + +static int test_gpt_header ( /* 0:Invalid, 1:Valid */ + const BYTE* gpth /* Pointer to the GPT header */ +) +{ + UINT i; + DWORD bcc; + + + if (mem_cmp(gpth + GPTH_Sign, "EFI PART" "\0\0\1\0" "\x5C\0\0", 16)) return 0; /* Check sign, version (1.0) and length (92) */ + for (i = 0, bcc = 0xFFFFFFFF; i < 92; i++) { /* Check header BCC */ + bcc = crc32(bcc, i - GPTH_Bcc < 4 ? 0 : gpth[i]); + } + if (~bcc != ld_dword(gpth + GPTH_Bcc)) return 0; + if (ld_dword(gpth + GPTH_PteSize) != SZ_GPTE) return 0; /* Table entry size (must be SZ_GPTE bytes) */ + if (ld_dword(gpth + GPTH_PtNum) > 128) return 0; /* Table size (must be 128 entries or less) */ + + return 1; +} + +#if !FF_FS_READONLY && FF_USE_MKFS + +/* Generate random value */ +static DWORD make_rand ( + DWORD seed, /* Seed value */ + BYTE* buff, /* Output buffer */ + UINT n /* Data length */ +) +{ + UINT r; + + + if (seed == 0) seed = 1; + do { + for (r = 0; r < 8; r++) seed = seed & 1 ? seed >> 1 ^ 0xA3000000 : seed >> 1; /* Shift 8 bits the 32-bit LFSR */ + *buff++ = (BYTE)seed; + } while (--n); + return seed; +} + +#endif +#endif + + + +/*-----------------------------------------------------------------------*/ +/* Load a sector and check if it is an FAT VBR */ +/*-----------------------------------------------------------------------*/ + +/* Check what the sector is */ + +static UINT check_fs ( /* 0:FAT VBR, 1:exFAT VBR, 2:Not FAT and valid BS, 3:Not FAT and invalid BS, 4:Disk error */ + FATFS* fs, /* Filesystem object */ + LBA_t sect /* Sector to load and check if it is an FAT-VBR or not */ +) +{ + WORD w, sign; + BYTE b; + + fs->wflag = 0; fs->winsect = (LBA_t)0 - 1; /* Invaidate window */ + if (move_window(fs, sect) != FR_OK) return 4; /* Load the boot sector */ + sign = ld_word(fs->win + BS_55AA); +#if FF_FS_EXFAT + if (sign == 0xAA55 && !mem_cmp(fs->win + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11)) return 1; /* It is an exFAT VBR */ +#endif + b = fs->win[BS_JmpBoot]; + if (b == 0xEB || b == 0xE9 || b == 0xE8) { /* Valid JumpBoot code? (short jump, near jump or near call) */ + if (sign == 0xAA55 && !mem_cmp(fs->win + BS_FilSysType32, "FAT32 ", 8)) return 0; /* It is an FAT32 VBR */ + /* FAT volumes formatted with early MS-DOS lack boot signature and FAT string, so that we need to identify the FAT VBR without them. */ + w = ld_word(fs->win + BPB_BytsPerSec); + if ((w & (w - 1)) == 0 && w >= FF_MIN_SS && w <= FF_MAX_SS) { /* Properness of sector size */ + b = fs->win[BPB_SecPerClus]; + if (b != 0 && (b & (b - 1)) == 0 /* Properness of cluster size */ + && (fs->win[BPB_NumFATs] == 1 || fs->win[BPB_NumFATs] == 2) /* Properness of number of FATs */ + && ld_word(fs->win + BPB_RootEntCnt) != 0 /* Properness of root entry count */ + && ld_word(fs->win + BPB_FATSz16) != 0) { /* Properness of FAT size */ + return 0; /* Sector can be presumed an FAT VBR */ + } + } + } + return sign == 0xAA55 ? 2 : 3; /* Not an FAT VBR (valid or invalid BS) */ +} + + +/* Find an FAT volume */ +/* (It supports only generic partitioning rules, MBR, GPT and SFD) */ + +static UINT find_volume ( /* Returns BS status found in the hosting drive */ + FATFS* fs, /* Filesystem object */ + UINT part /* Partition to fined = 0:auto, 1..:forced */ +) +{ + UINT fmt, i; + DWORD mbr_pt[4]; + + + fmt = check_fs(fs, 0); /* Load sector 0 and check if it is an FAT VBR as SFD */ + if (fmt != 2 && (fmt >= 3 || part == 0)) return fmt; /* Returns if it is a FAT VBR as auto scan, not a BS or disk error */ + + /* Sector 0 is not an FAT VBR or forced partition number wants a partition */ + +#if FF_LBA64 + if (fs->win[MBR_Table + PTE_System] == 0xEE) { /* GPT protective MBR? */ + DWORD n_ent, v_ent, ofs; + QWORD pt_lba; + + if (move_window(fs, 1) != FR_OK) return 4; /* Load GPT header sector (next to MBR) */ + if (!test_gpt_header(fs->win)) return 3; /* Check if GPT header is valid */ + n_ent = ld_dword(fs->win + GPTH_PtNum); /* Number of entries */ + pt_lba = ld_qword(fs->win + GPTH_PtOfs); /* Table location */ + for (v_ent = i = 0; i < n_ent; i++) { /* Find FAT partition */ + if (move_window(fs, pt_lba + i * SZ_GPTE / SS(fs)) != FR_OK) return 4; /* PT sector */ + ofs = i * SZ_GPTE % SS(fs); /* Offset in the sector */ + if (!mem_cmp(fs->win + ofs + GPTE_PtGuid, GUID_MS_Basic, 16)) { /* MS basic data partition? */ + v_ent++; + fmt = check_fs(fs, ld_qword(fs->win + ofs + GPTE_FstLba)); /* Load VBR and check status */ + if (part == 0 && fmt <= 1) return fmt; /* Auto search (valid FAT volume found first) */ + if (part != 0 && v_ent == part) return fmt; /* Forced partition order (regardless of it is valid or not) */ + } + } + return 3; /* Not found */ + } +#endif + if (FF_MULTI_PARTITION && part > 4) return 3; /* MBR has 4 partitions max */ + for (i = 0; i < 4; i++) { /* Load partition offset in the MBR */ + mbr_pt[i] = ld_dword(fs->win + MBR_Table + i * SZ_PTE + PTE_StLba); + } + i = part ? part - 1 : 0; /* Table index to find first */ + do { /* Find an FAT volume */ + fmt = mbr_pt[i] ? check_fs(fs, mbr_pt[i]) : 3; /* Check if the partition is FAT */ + } while (part == 0 && fmt >= 2 && ++i < 4); + return fmt; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Determine logical drive number and mount the volume if needed */ +/*-----------------------------------------------------------------------*/ + +static FRESULT mount_volume ( /* FR_OK(0): successful, !=0: an error occurred */ + const TCHAR** path, /* Pointer to pointer to the path name (drive number) */ + FATFS** rfs, /* Pointer to pointer to the found filesystem object */ + BYTE mode /* !=0: Check write protection for write access */ +) +{ + int vol; + DSTATUS stat; + LBA_t bsect; + DWORD tsect, sysect, fasize, nclst, szbfat; + WORD nrsv; + FATFS *fs; + UINT fmt; + + + /* Get logical drive number */ + *rfs = 0; + vol = get_ldnumber(path); + if (vol < 0) return FR_INVALID_DRIVE; + + /* Check if the filesystem object is valid or not */ + fs = FatFs[vol]; /* Get pointer to the filesystem object */ + if (!fs) return FR_NOT_ENABLED; /* Is the filesystem object available? */ +#if FF_FS_REENTRANT + if (!lock_fs(fs)) return FR_TIMEOUT; /* Lock the volume */ +#endif + *rfs = fs; /* Return pointer to the filesystem object */ + + mode &= (BYTE)~FA_READ; /* Desired access mode, write access or not */ + if (fs->fs_type != 0) { /* If the volume has been mounted */ + stat = disk_status(fs->pdrv); + if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */ + if (!FF_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check write protection if needed */ + return FR_WRITE_PROTECTED; + } + return FR_OK; /* The filesystem object is already valid */ + } + } + + /* The filesystem object is not valid. */ + /* Following code attempts to mount the volume. (find a FAT volume, analyze the BPB and initialize the filesystem object) */ + + fs->fs_type = 0; /* Clear the filesystem object */ + fs->pdrv = LD2PD(vol); /* Volume hosting physical drive */ + stat = disk_initialize(fs->pdrv); /* Initialize the physical drive */ + if (stat & STA_NOINIT) { /* Check if the initialization succeeded */ + return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */ + } + if (!FF_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check disk write protection if needed */ + return FR_WRITE_PROTECTED; + } +#if FF_MAX_SS != FF_MIN_SS /* Get sector size (multiple sector size cfg only) */ + if (disk_ioctl(fs->pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK) return FR_DISK_ERR; + if (SS(fs) > FF_MAX_SS || SS(fs) < FF_MIN_SS || (SS(fs) & (SS(fs) - 1))) return FR_DISK_ERR; +#endif + + /* Find an FAT volume on the drive */ + fmt = find_volume(fs, LD2PT(vol)); + if (fmt == 4) return FR_DISK_ERR; /* An error occured in the disk I/O layer */ + if (fmt >= 2) return FR_NO_FILESYSTEM; /* No FAT volume is found */ + bsect = fs->winsect; /* Volume location */ + + /* An FAT volume is found (bsect). Following code initializes the filesystem object */ + +#if FF_FS_EXFAT + if (fmt == 1) { + QWORD maxlba; + DWORD so, cv, bcl, i; + + for (i = BPB_ZeroedEx; i < BPB_ZeroedEx + 53 && fs->win[i] == 0; i++) ; /* Check zero filler */ + if (i < BPB_ZeroedEx + 53) return FR_NO_FILESYSTEM; + + if (ld_word(fs->win + BPB_FSVerEx) != 0x100) return FR_NO_FILESYSTEM; /* Check exFAT version (must be version 1.0) */ + + if (1 << fs->win[BPB_BytsPerSecEx] != SS(fs)) { /* (BPB_BytsPerSecEx must be equal to the physical sector size) */ + return FR_NO_FILESYSTEM; + } + + maxlba = ld_qword(fs->win + BPB_TotSecEx) + bsect; /* Last LBA + 1 of the volume */ + if (!FF_LBA64 && maxlba >= 0x100000000) return FR_NO_FILESYSTEM; /* (It cannot be handled in 32-bit LBA) */ + + fs->fsize = ld_dword(fs->win + BPB_FatSzEx); /* Number of sectors per FAT */ + + fs->n_fats = fs->win[BPB_NumFATsEx]; /* Number of FATs */ + if (fs->n_fats != 1) return FR_NO_FILESYSTEM; /* (Supports only 1 FAT) */ + + fs->csize = 1 << fs->win[BPB_SecPerClusEx]; /* Cluster size */ + if (fs->csize == 0) return FR_NO_FILESYSTEM; /* (Must be 1..32768) */ + + nclst = ld_dword(fs->win + BPB_NumClusEx); /* Number of clusters */ + if (nclst > MAX_EXFAT) return FR_NO_FILESYSTEM; /* (Too many clusters) */ + fs->n_fatent = nclst + 2; + + /* Boundaries and Limits */ + fs->volbase = bsect; + fs->database = bsect + ld_dword(fs->win + BPB_DataOfsEx); + fs->fatbase = bsect + ld_dword(fs->win + BPB_FatOfsEx); + if (maxlba < (QWORD)fs->database + nclst * fs->csize) return FR_NO_FILESYSTEM; /* (Volume size must not be smaller than the size requiered) */ + fs->dirbase = ld_dword(fs->win + BPB_RootClusEx); + + /* Get bitmap location and check if it is contiguous (implementation assumption) */ + so = i = 0; + for (;;) { /* Find the bitmap entry in the root directory (in only first cluster) */ + if (i == 0) { + if (so >= fs->csize) return FR_NO_FILESYSTEM; /* Not found? */ + if (move_window(fs, clst2sect(fs, (DWORD)fs->dirbase) + so) != FR_OK) return FR_DISK_ERR; + so++; + } + if (fs->win[i] == ET_BITMAP) break; /* Is it a bitmap entry? */ + i = (i + SZDIRE) % SS(fs); /* Next entry */ + } + bcl = ld_dword(fs->win + i + 20); /* Bitmap cluster */ + if (bcl < 2 || bcl >= fs->n_fatent) return FR_NO_FILESYSTEM; + fs->bitbase = fs->database + fs->csize * (bcl - 2); /* Bitmap sector */ + for (;;) { /* Check if bitmap is contiguous */ + if (move_window(fs, fs->fatbase + bcl / (SS(fs) / 4)) != FR_OK) return FR_DISK_ERR; + cv = ld_dword(fs->win + bcl % (SS(fs) / 4) * 4); + if (cv == 0xFFFFFFFF) break; /* Last link? */ + if (cv != ++bcl) return FR_NO_FILESYSTEM; /* Fragmented? */ + } + +#if !FF_FS_READONLY + fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */ +#endif + fmt = FS_EXFAT; /* FAT sub-type */ + } else +#endif /* FF_FS_EXFAT */ + { + if (ld_word(fs->win + BPB_BytsPerSec) != SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_BytsPerSec must be equal to the physical sector size) */ + + fasize = ld_word(fs->win + BPB_FATSz16); /* Number of sectors per FAT */ + if (fasize == 0) fasize = ld_dword(fs->win + BPB_FATSz32); + fs->fsize = fasize; + + fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FATs */ + if (fs->n_fats != 1 && fs->n_fats != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */ + fasize *= fs->n_fats; /* Number of sectors for FAT area */ + + fs->csize = fs->win[BPB_SecPerClus]; /* Cluster size */ + if (fs->csize == 0 || (fs->csize & (fs->csize - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */ + + fs->n_rootdir = ld_word(fs->win + BPB_RootEntCnt); /* Number of root directory entries */ + if (fs->n_rootdir % (SS(fs) / SZDIRE)) return FR_NO_FILESYSTEM; /* (Must be sector aligned) */ + + tsect = ld_word(fs->win + BPB_TotSec16); /* Number of sectors on the volume */ + if (tsect == 0) tsect = ld_dword(fs->win + BPB_TotSec32); + + nrsv = ld_word(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */ + if (nrsv == 0) return FR_NO_FILESYSTEM; /* (Must not be 0) */ + + /* Determine the FAT sub type */ + sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZDIRE); /* RSV + FAT + DIR */ + if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */ + nclst = (tsect - sysect) / fs->csize; /* Number of clusters */ + if (nclst == 0) return FR_NO_FILESYSTEM; /* (Invalid volume size) */ + fmt = 0; + if (nclst <= MAX_FAT32) fmt = FS_FAT32; + if (nclst <= MAX_FAT16) fmt = FS_FAT16; + if (nclst <= MAX_FAT12) fmt = FS_FAT12; + if (fmt == 0) return FR_NO_FILESYSTEM; + + /* Boundaries and Limits */ + fs->n_fatent = nclst + 2; /* Number of FAT entries */ + fs->volbase = bsect; /* Volume start sector */ + fs->fatbase = bsect + nrsv; /* FAT start sector */ + fs->database = bsect + sysect; /* Data start sector */ + if (fmt == FS_FAT32) { + if (ld_word(fs->win + BPB_FSVer32) != 0) return FR_NO_FILESYSTEM; /* (Must be FAT32 revision 0.0) */ + if (fs->n_rootdir != 0) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */ + fs->dirbase = ld_dword(fs->win + BPB_RootClus32); /* Root directory start cluster */ + szbfat = fs->n_fatent * 4; /* (Needed FAT size) */ + } else { + if (fs->n_rootdir == 0) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */ + fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */ + szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */ + fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1); + } + if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_FATSz must not be less than the size needed) */ + +#if !FF_FS_READONLY + /* Get FSInfo if available */ + fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */ + fs->fsi_flag = 0x80; +#if (FF_FS_NOFSINFO & 3) != 3 + if (fmt == FS_FAT32 /* Allow to update FSInfo only if BPB_FSInfo32 == 1 */ + && ld_word(fs->win + BPB_FSInfo32) == 1 + && move_window(fs, bsect + 1) == FR_OK) + { + fs->fsi_flag = 0; + if (ld_word(fs->win + BS_55AA) == 0xAA55 /* Load FSInfo data if available */ + && ld_dword(fs->win + FSI_LeadSig) == 0x41615252 + && ld_dword(fs->win + FSI_StrucSig) == 0x61417272) + { +#if (FF_FS_NOFSINFO & 1) == 0 + fs->free_clst = ld_dword(fs->win + FSI_Free_Count); +#endif +#if (FF_FS_NOFSINFO & 2) == 0 + fs->last_clst = ld_dword(fs->win + FSI_Nxt_Free); +#endif + } + } +#endif /* (FF_FS_NOFSINFO & 3) != 3 */ +#endif /* !FF_FS_READONLY */ + } + + fs->fs_type = (BYTE)fmt;/* FAT sub-type */ + fs->id = ++Fsid; /* Volume mount ID */ +#if FF_USE_LFN == 1 + fs->lfnbuf = LfnBuf; /* Static LFN working buffer */ +#if FF_FS_EXFAT + fs->dirbuf = DirBuf; /* Static directory block scratchpad buuffer */ +#endif +#endif +#if FF_FS_RPATH != 0 + fs->cdir = 0; /* Initialize current directory */ +#endif +#if FF_FS_LOCK != 0 /* Clear file lock semaphores */ + clear_lock(fs); +#endif + return FR_OK; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Check if the file/directory object is valid or not */ +/*-----------------------------------------------------------------------*/ + +static FRESULT validate ( /* Returns FR_OK or FR_INVALID_OBJECT */ + FFOBJID* obj, /* Pointer to the FFOBJID, the 1st member in the FIL/DIR object, to check validity */ + FATFS** rfs /* Pointer to pointer to the owner filesystem object to return */ +) +{ + FRESULT res = FR_INVALID_OBJECT; + + + if (obj && obj->fs && obj->fs->fs_type && obj->id == obj->fs->id) { /* Test if the object is valid */ +#if FF_FS_REENTRANT + if (lock_fs(obj->fs)) { /* Obtain the filesystem object */ + if (!(disk_status(obj->fs->pdrv) & STA_NOINIT)) { /* Test if the phsical drive is kept initialized */ + res = FR_OK; + } else { + unlock_fs(obj->fs, FR_OK); + } + } else { + res = FR_TIMEOUT; + } +#else + if (!(disk_status(obj->fs->pdrv) & STA_NOINIT)) { /* Test if the phsical drive is kept initialized */ + res = FR_OK; + } +#endif + } + *rfs = (res == FR_OK) ? obj->fs : 0; /* Corresponding filesystem object */ + return res; +} + + + + +/*--------------------------------------------------------------------------- + + Public Functions (FatFs API) + +----------------------------------------------------------------------------*/ + + + +/*-----------------------------------------------------------------------*/ +/* Mount/Unmount a Logical Drive */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_mount ( + FATFS* fs, /* Pointer to the filesystem object (NULL:unmount)*/ + const TCHAR* path, /* Logical drive number to be mounted/unmounted */ + BYTE opt /* Mode option 0:Do not mount (delayed mount), 1:Mount immediately */ +) +{ + FATFS *cfs; + int vol; + FRESULT res; + const TCHAR *rp = path; + + + /* Get logical drive number */ + vol = get_ldnumber(&rp); + if (vol < 0) return FR_INVALID_DRIVE; + cfs = FatFs[vol]; /* Pointer to fs object */ + + if (cfs) { +#if FF_FS_LOCK != 0 + clear_lock(cfs); +#endif +#if FF_FS_REENTRANT /* Discard sync object of the current volume */ + if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR; +#endif + cfs->fs_type = 0; /* Clear old fs object */ + } + + if (fs) { + fs->fs_type = 0; /* Clear new fs object */ +#if FF_FS_REENTRANT /* Create sync object for the new volume */ + if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR; +#endif + } + FatFs[vol] = fs; /* Register new fs object */ + + if (opt == 0) return FR_OK; /* Do not mount now, it will be mounted later */ + + res = mount_volume(&path, &fs, 0); /* Force mounted the volume */ + LEAVE_FF(fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Open or Create a File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_open ( + FIL* fp, /* Pointer to the blank file object */ + const TCHAR* path, /* Pointer to the file name */ + BYTE mode /* Access mode and file open mode flags */ +) +{ + FRESULT res; + DIR dj; + FATFS *fs; +#if !FF_FS_READONLY + DWORD cl, bcs, clst; + LBA_t sc; + FSIZE_t ofs; +#endif + DEF_NAMBUF + + + if (!fp) return FR_INVALID_OBJECT; + + /* Get logical drive number */ + mode &= FF_FS_READONLY ? FA_READ : FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_CREATE_NEW | FA_OPEN_ALWAYS | FA_OPEN_APPEND; + res = mount_volume(&path, &fs, mode); + if (res == FR_OK) { + dj.obj.fs = fs; + INIT_NAMBUF(fs); + res = follow_path(&dj, path); /* Follow the file path */ +#if !FF_FS_READONLY /* Read/Write configuration */ + if (res == FR_OK) { + if (dj.fn[NSFLAG] & NS_NONAME) { /* Origin directory itself? */ + res = FR_INVALID_NAME; + } +#if FF_FS_LOCK != 0 + else { + res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0); /* Check if the file can be used */ + } +#endif + } + /* Create or Open a file */ + if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) { + if (res != FR_OK) { /* No file, create new */ + if (res == FR_NO_FILE) { /* There is no file to open, create a new entry */ +#if FF_FS_LOCK != 0 + res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES; +#else + res = dir_register(&dj); +#endif + } + mode |= FA_CREATE_ALWAYS; /* File is created */ + } + else { /* Any object with the same name is already existing */ + if (dj.obj.attr & (AM_RDO | AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */ + res = FR_DENIED; + } else { + if (mode & FA_CREATE_NEW) res = FR_EXIST; /* Cannot create as new file */ + } + } + if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate the file if overwrite mode */ +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + /* Get current allocation info */ + fp->obj.fs = fs; + init_alloc_info(fs, &fp->obj); + /* Set directory entry block initial state */ + mem_set(fs->dirbuf + 2, 0, 30); /* Clear 85 entry except for NumSec */ + mem_set(fs->dirbuf + 38, 0, 26); /* Clear C0 entry except for NumName and NameHash */ + fs->dirbuf[XDIR_Attr] = AM_ARC; + st_dword(fs->dirbuf + XDIR_CrtTime, GET_FATTIME()); + fs->dirbuf[XDIR_GenFlags] = 1; + res = store_xdir(&dj); + if (res == FR_OK && fp->obj.sclust != 0) { /* Remove the cluster chain if exist */ + res = remove_chain(&fp->obj, fp->obj.sclust, 0); + fs->last_clst = fp->obj.sclust - 1; /* Reuse the cluster hole */ + } + } else +#endif + { + /* Set directory entry initial state */ + cl = ld_clust(fs, dj.dir); /* Get current cluster chain */ + st_dword(dj.dir + DIR_CrtTime, GET_FATTIME()); /* Set created time */ + dj.dir[DIR_Attr] = AM_ARC; /* Reset attribute */ + st_clust(fs, dj.dir, 0); /* Reset file allocation info */ + st_dword(dj.dir + DIR_FileSize, 0); + fs->wflag = 1; + if (cl != 0) { /* Remove the cluster chain if exist */ + sc = fs->winsect; + res = remove_chain(&dj.obj, cl, 0); + if (res == FR_OK) { + res = move_window(fs, sc); + fs->last_clst = cl - 1; /* Reuse the cluster hole */ + } + } + } + } + } + else { /* Open an existing file */ + if (res == FR_OK) { /* Is the object exsiting? */ + if (dj.obj.attr & AM_DIR) { /* File open against a directory */ + res = FR_NO_FILE; + } else { + if ((mode & FA_WRITE) && (dj.obj.attr & AM_RDO)) { /* Write mode open against R/O file */ + res = FR_DENIED; + } + } + } + } + if (res == FR_OK) { + if (mode & FA_CREATE_ALWAYS) mode |= FA_MODIFIED; /* Set file change flag if created or overwritten */ + fp->dir_sect = fs->winsect; /* Pointer to the directory entry */ + fp->dir_ptr = dj.dir; +#if FF_FS_LOCK != 0 + fp->obj.lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0); /* Lock the file for this session */ + if (fp->obj.lockid == 0) res = FR_INT_ERR; +#endif + } +#else /* R/O configuration */ + if (res == FR_OK) { + if (dj.fn[NSFLAG] & NS_NONAME) { /* Is it origin directory itself? */ + res = FR_INVALID_NAME; + } else { + if (dj.obj.attr & AM_DIR) { /* Is it a directory? */ + res = FR_NO_FILE; + } + } + } +#endif + + if (res == FR_OK) { +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + fp->obj.c_scl = dj.obj.sclust; /* Get containing directory info */ + fp->obj.c_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat; + fp->obj.c_ofs = dj.blk_ofs; + init_alloc_info(fs, &fp->obj); + } else +#endif + { + fp->obj.sclust = ld_clust(fs, dj.dir); /* Get object allocation info */ + fp->obj.objsize = ld_dword(dj.dir + DIR_FileSize); + } +#if FF_USE_FASTSEEK + fp->cltbl = 0; /* Disable fast seek mode */ +#endif + fp->obj.fs = fs; /* Validate the file object */ + fp->obj.id = fs->id; + fp->flag = mode; /* Set file access mode */ + fp->err = 0; /* Clear error flag */ + fp->sect = 0; /* Invalidate current data sector */ + fp->fptr = 0; /* Set file pointer top of the file */ +#if !FF_FS_READONLY +#if !FF_FS_TINY + mem_set(fp->buf, 0, sizeof fp->buf); /* Clear sector buffer */ +#endif + if ((mode & FA_SEEKEND) && fp->obj.objsize > 0) { /* Seek to end of file if FA_OPEN_APPEND is specified */ + fp->fptr = fp->obj.objsize; /* Offset to seek */ + bcs = (DWORD)fs->csize * SS(fs); /* Cluster size in byte */ + clst = fp->obj.sclust; /* Follow the cluster chain */ + for (ofs = fp->obj.objsize; res == FR_OK && ofs > bcs; ofs -= bcs) { + clst = get_fat(&fp->obj, clst); + if (clst <= 1) res = FR_INT_ERR; + if (clst == 0xFFFFFFFF) res = FR_DISK_ERR; + } + fp->clust = clst; + if (res == FR_OK && ofs % SS(fs)) { /* Fill sector buffer if not on the sector boundary */ + sc = clst2sect(fs, clst); + if (sc == 0) { + res = FR_INT_ERR; + } else { + fp->sect = sc + (DWORD)(ofs / SS(fs)); +#if !FF_FS_TINY + if (disk_read(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) res = FR_DISK_ERR; +#endif + } + } + } +#endif + } + + FREE_NAMBUF(); + } + + if (res != FR_OK) fp->obj.fs = 0; /* Invalidate file object on error */ + + LEAVE_FF(fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Read File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_read ( + FIL* fp, /* Pointer to the file object */ + void* buff, /* Pointer to data buffer */ + UINT btr, /* Number of bytes to read */ + UINT* br /* Pointer to number of bytes read */ +) +{ + FRESULT res; + FATFS *fs; + DWORD clst; + LBA_t sect; + FSIZE_t remain; + UINT rcnt, cc, csect; + BYTE *rbuff = (BYTE*)buff; + + + *br = 0; /* Clear read byte counter */ + res = validate(&fp->obj, &fs); /* Check validity of the file object */ + if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */ + if (!(fp->flag & FA_READ)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */ + remain = fp->obj.objsize - fp->fptr; + if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */ + + for ( ; btr; /* Repeat until btr bytes read */ + btr -= rcnt, *br += rcnt, rbuff += rcnt, fp->fptr += rcnt) { + if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */ + csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */ + if (csect == 0) { /* On the cluster boundary? */ + if (fp->fptr == 0) { /* On the top of the file? */ + clst = fp->obj.sclust; /* Follow cluster chain from the origin */ + } else { /* Middle or end of the file */ +#if FF_USE_FASTSEEK + if (fp->cltbl) { + clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */ + } else +#endif + { + clst = get_fat(&fp->obj, fp->clust); /* Follow cluster chain on the FAT */ + } + } + if (clst < 2) ABORT(fs, FR_INT_ERR); + if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR); + fp->clust = clst; /* Update current cluster */ + } + sect = clst2sect(fs, fp->clust); /* Get current sector */ + if (sect == 0) ABORT(fs, FR_INT_ERR); + sect += csect; + cc = btr / SS(fs); /* When remaining bytes >= sector size, */ + if (cc > 0) { /* Read maximum contiguous sectors directly */ + if (csect + cc > fs->csize) { /* Clip at cluster boundary */ + cc = fs->csize - csect; + } + if (disk_read(fs->pdrv, rbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR); +#if !FF_FS_READONLY && FF_FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */ +#if FF_FS_TINY + if (fs->wflag && fs->winsect - sect < cc) { + mem_cpy(rbuff + ((fs->winsect - sect) * SS(fs)), fs->win, SS(fs)); + } +#else + if ((fp->flag & FA_DIRTY) && fp->sect - sect < cc) { + mem_cpy(rbuff + ((fp->sect - sect) * SS(fs)), fp->buf, SS(fs)); + } +#endif +#endif + rcnt = SS(fs) * cc; /* Number of bytes transferred */ + continue; + } +#if !FF_FS_TINY + if (fp->sect != sect) { /* Load data sector if not in cache */ +#if !FF_FS_READONLY + if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */ + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + fp->flag &= (BYTE)~FA_DIRTY; + } +#endif + if (disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */ + } +#endif + fp->sect = sect; + } + rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes remains in the sector */ + if (rcnt > btr) rcnt = btr; /* Clip it by btr if needed */ +#if FF_FS_TINY + if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */ + mem_cpy(rbuff, fs->win + fp->fptr % SS(fs), rcnt); /* Extract partial sector */ +#else + mem_cpy(rbuff, fp->buf + fp->fptr % SS(fs), rcnt); /* Extract partial sector */ +#endif + } + + LEAVE_FF(fs, FR_OK); +} + + + + +#if !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Write File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_write ( + FIL* fp, /* Pointer to the file object */ + const void* buff, /* Pointer to the data to be written */ + UINT btw, /* Number of bytes to write */ + UINT* bw /* Pointer to number of bytes written */ +) +{ + FRESULT res; + FATFS *fs; + DWORD clst; + LBA_t sect; + UINT wcnt, cc, csect; + const BYTE *wbuff = (const BYTE*)buff; + + + *bw = 0; /* Clear write byte counter */ + res = validate(&fp->obj, &fs); /* Check validity of the file object */ + if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */ + if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */ + + /* Check fptr wrap-around (file size cannot reach 4 GiB at FAT volume) */ + if ((!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) && (DWORD)(fp->fptr + btw) < (DWORD)fp->fptr) { + btw = (UINT)(0xFFFFFFFF - (DWORD)fp->fptr); + } + + for ( ; btw; /* Repeat until all data written */ + btw -= wcnt, *bw += wcnt, wbuff += wcnt, fp->fptr += wcnt, fp->obj.objsize = (fp->fptr > fp->obj.objsize) ? fp->fptr : fp->obj.objsize) { + if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */ + csect = (UINT)(fp->fptr / SS(fs)) & (fs->csize - 1); /* Sector offset in the cluster */ + if (csect == 0) { /* On the cluster boundary? */ + if (fp->fptr == 0) { /* On the top of the file? */ + clst = fp->obj.sclust; /* Follow from the origin */ + if (clst == 0) { /* If no cluster is allocated, */ + clst = create_chain(&fp->obj, 0); /* create a new cluster chain */ + } + } else { /* On the middle or end of the file */ +#if FF_USE_FASTSEEK + if (fp->cltbl) { + clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */ + } else +#endif + { + clst = create_chain(&fp->obj, fp->clust); /* Follow or stretch cluster chain on the FAT */ + } + } + if (clst == 0) break; /* Could not allocate a new cluster (disk full) */ + if (clst == 1) ABORT(fs, FR_INT_ERR); + if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR); + fp->clust = clst; /* Update current cluster */ + if (fp->obj.sclust == 0) fp->obj.sclust = clst; /* Set start cluster if the first write */ + } +#if FF_FS_TINY + if (fs->winsect == fp->sect && sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Write-back sector cache */ +#else + if (fp->flag & FA_DIRTY) { /* Write-back sector cache */ + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + fp->flag &= (BYTE)~FA_DIRTY; + } +#endif + sect = clst2sect(fs, fp->clust); /* Get current sector */ + if (sect == 0) ABORT(fs, FR_INT_ERR); + sect += csect; + cc = btw / SS(fs); /* When remaining bytes >= sector size, */ + if (cc > 0) { /* Write maximum contiguous sectors directly */ + if (csect + cc > fs->csize) { /* Clip at cluster boundary */ + cc = fs->csize - csect; + } + if (disk_write(fs->pdrv, wbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR); +#if FF_FS_MINIMIZE <= 2 +#if FF_FS_TINY + if (fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */ + mem_cpy(fs->win, wbuff + ((fs->winsect - sect) * SS(fs)), SS(fs)); + fs->wflag = 0; + } +#else + if (fp->sect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */ + mem_cpy(fp->buf, wbuff + ((fp->sect - sect) * SS(fs)), SS(fs)); + fp->flag &= (BYTE)~FA_DIRTY; + } +#endif +#endif + wcnt = SS(fs) * cc; /* Number of bytes transferred */ + continue; + } +#if FF_FS_TINY + if (fp->fptr >= fp->obj.objsize) { /* Avoid silly cache filling on the growing edge */ + if (sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR); + fs->winsect = sect; + } +#else + if (fp->sect != sect && /* Fill sector cache with file data */ + fp->fptr < fp->obj.objsize && + disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) { + ABORT(fs, FR_DISK_ERR); + } +#endif + fp->sect = sect; + } + wcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes remains in the sector */ + if (wcnt > btw) wcnt = btw; /* Clip it by btw if needed */ +#if FF_FS_TINY + if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */ + mem_cpy(fs->win + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */ + fs->wflag = 1; +#else + mem_cpy(fp->buf + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */ + fp->flag |= FA_DIRTY; +#endif + } + + fp->flag |= FA_MODIFIED; /* Set file change flag */ + + LEAVE_FF(fs, FR_OK); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Synchronize the File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_sync ( + FIL* fp /* Pointer to the file object */ +) +{ + FRESULT res; + FATFS *fs; + DWORD tm; + BYTE *dir; + + + res = validate(&fp->obj, &fs); /* Check validity of the file object */ + if (res == FR_OK) { + if (fp->flag & FA_MODIFIED) { /* Is there any change to the file? */ +#if !FF_FS_TINY + if (fp->flag & FA_DIRTY) { /* Write-back cached data if needed */ + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) LEAVE_FF(fs, FR_DISK_ERR); + fp->flag &= (BYTE)~FA_DIRTY; + } +#endif + /* Update the directory entry */ + tm = GET_FATTIME(); /* Modified time */ +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + res = fill_first_frag(&fp->obj); /* Fill first fragment on the FAT if needed */ + if (res == FR_OK) { + res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */ + } + if (res == FR_OK) { + DIR dj; + DEF_NAMBUF + + INIT_NAMBUF(fs); + res = load_obj_xdir(&dj, &fp->obj); /* Load directory entry block */ + if (res == FR_OK) { + fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive attribute to indicate that the file has been changed */ + fs->dirbuf[XDIR_GenFlags] = fp->obj.stat | 1; /* Update file allocation information */ + st_dword(fs->dirbuf + XDIR_FstClus, fp->obj.sclust); /* Update start cluster */ + st_qword(fs->dirbuf + XDIR_FileSize, fp->obj.objsize); /* Update file size */ + st_qword(fs->dirbuf + XDIR_ValidFileSize, fp->obj.objsize); /* (FatFs does not support Valid File Size feature) */ + st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Update modified time */ + fs->dirbuf[XDIR_ModTime10] = 0; + st_dword(fs->dirbuf + XDIR_AccTime, 0); + res = store_xdir(&dj); /* Restore it to the directory */ + if (res == FR_OK) { + res = sync_fs(fs); + fp->flag &= (BYTE)~FA_MODIFIED; + } + } + FREE_NAMBUF(); + } + } else +#endif + { + res = move_window(fs, fp->dir_sect); + if (res == FR_OK) { + dir = fp->dir_ptr; + dir[DIR_Attr] |= AM_ARC; /* Set archive attribute to indicate that the file has been changed */ + st_clust(fp->obj.fs, dir, fp->obj.sclust); /* Update file allocation information */ + st_dword(dir + DIR_FileSize, (DWORD)fp->obj.objsize); /* Update file size */ + st_dword(dir + DIR_ModTime, tm); /* Update modified time */ + st_word(dir + DIR_LstAccDate, 0); + fs->wflag = 1; + res = sync_fs(fs); /* Restore it to the directory */ + fp->flag &= (BYTE)~FA_MODIFIED; + } + } + } + } + + LEAVE_FF(fs, res); +} + +#endif /* !FF_FS_READONLY */ + + + + +/*-----------------------------------------------------------------------*/ +/* Close File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_close ( + FIL* fp /* Pointer to the file object to be closed */ +) +{ + FRESULT res; + FATFS *fs; + +#if !FF_FS_READONLY + res = f_sync(fp); /* Flush cached data */ + if (res == FR_OK) +#endif + { + res = validate(&fp->obj, &fs); /* Lock volume */ + if (res == FR_OK) { +#if FF_FS_LOCK != 0 + res = dec_lock(fp->obj.lockid); /* Decrement file open counter */ + if (res == FR_OK) fp->obj.fs = 0; /* Invalidate file object */ +#else + fp->obj.fs = 0; /* Invalidate file object */ +#endif +#if FF_FS_REENTRANT + unlock_fs(fs, FR_OK); /* Unlock volume */ +#endif + } + } + return res; +} + + + + +#if FF_FS_RPATH >= 1 +/*-----------------------------------------------------------------------*/ +/* Change Current Directory or Current Drive, Get Current Directory */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_chdrive ( + const TCHAR* path /* Drive number to set */ +) +{ + int vol; + + + /* Get logical drive number */ + vol = get_ldnumber(&path); + if (vol < 0) return FR_INVALID_DRIVE; + CurrVol = (BYTE)vol; /* Set it as current volume */ + + return FR_OK; +} + + + +FRESULT f_chdir ( + const TCHAR* path /* Pointer to the directory path */ +) +{ +#if FF_STR_VOLUME_ID == 2 + UINT i; +#endif + FRESULT res; + DIR dj; + FATFS *fs; + DEF_NAMBUF + + + /* Get logical drive */ + res = mount_volume(&path, &fs, 0); + if (res == FR_OK) { + dj.obj.fs = fs; + INIT_NAMBUF(fs); + res = follow_path(&dj, path); /* Follow the path */ + if (res == FR_OK) { /* Follow completed */ + if (dj.fn[NSFLAG] & NS_NONAME) { /* Is it the start directory itself? */ + fs->cdir = dj.obj.sclust; +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + fs->cdc_scl = dj.obj.c_scl; + fs->cdc_size = dj.obj.c_size; + fs->cdc_ofs = dj.obj.c_ofs; + } +#endif + } else { + if (dj.obj.attr & AM_DIR) { /* It is a sub-directory */ +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + fs->cdir = ld_dword(fs->dirbuf + XDIR_FstClus); /* Sub-directory cluster */ + fs->cdc_scl = dj.obj.sclust; /* Save containing directory information */ + fs->cdc_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat; + fs->cdc_ofs = dj.blk_ofs; + } else +#endif + { + fs->cdir = ld_clust(fs, dj.dir); /* Sub-directory cluster */ + } + } else { + res = FR_NO_PATH; /* Reached but a file */ + } + } + } + FREE_NAMBUF(); + if (res == FR_NO_FILE) res = FR_NO_PATH; +#if FF_STR_VOLUME_ID == 2 /* Also current drive is changed at Unix style volume ID */ + if (res == FR_OK) { + for (i = FF_VOLUMES - 1; i && fs != FatFs[i]; i--) ; /* Set current drive */ + CurrVol = (BYTE)i; + } +#endif + } + + LEAVE_FF(fs, res); +} + + +#if FF_FS_RPATH >= 2 +FRESULT f_getcwd ( + TCHAR* buff, /* Pointer to the directory path */ + UINT len /* Size of buff in unit of TCHAR */ +) +{ + FRESULT res; + DIR dj; + FATFS *fs; + UINT i, n; + DWORD ccl; + TCHAR *tp = buff; +#if FF_VOLUMES >= 2 + UINT vl; +#if FF_STR_VOLUME_ID + const char *vp; +#endif +#endif + FILINFO fno; + DEF_NAMBUF + + + /* Get logical drive */ + buff[0] = 0; /* Set null string to get current volume */ + res = mount_volume((const TCHAR**)&buff, &fs, 0); /* Get current volume */ + if (res == FR_OK) { + dj.obj.fs = fs; + INIT_NAMBUF(fs); + + /* Follow parent directories and create the path */ + i = len; /* Bottom of buffer (directory stack base) */ + if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { /* (Cannot do getcwd on exFAT and returns root path) */ + dj.obj.sclust = fs->cdir; /* Start to follow upper directory from current directory */ + while ((ccl = dj.obj.sclust) != 0) { /* Repeat while current directory is a sub-directory */ + res = dir_sdi(&dj, 1 * SZDIRE); /* Get parent directory */ + if (res != FR_OK) break; + res = move_window(fs, dj.sect); + if (res != FR_OK) break; + dj.obj.sclust = ld_clust(fs, dj.dir); /* Goto parent directory */ + res = dir_sdi(&dj, 0); + if (res != FR_OK) break; + do { /* Find the entry links to the child directory */ + res = DIR_READ_FILE(&dj); + if (res != FR_OK) break; + if (ccl == ld_clust(fs, dj.dir)) break; /* Found the entry */ + res = dir_next(&dj, 0); + } while (res == FR_OK); + if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */ + if (res != FR_OK) break; + get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */ + for (n = 0; fno.fname[n]; n++) ; /* Name length */ + if (i < n + 1) { /* Insufficient space to store the path name? */ + res = FR_NOT_ENOUGH_CORE; break; + } + while (n) buff[--i] = fno.fname[--n]; /* Stack the name */ + buff[--i] = '/'; + } + } + if (res == FR_OK) { + if (i == len) buff[--i] = '/'; /* Is it the root-directory? */ +#if FF_VOLUMES >= 2 /* Put drive prefix */ + vl = 0; +#if FF_STR_VOLUME_ID >= 1 /* String volume ID */ + for (n = 0, vp = (const char*)VolumeStr[CurrVol]; vp[n]; n++) ; + if (i >= n + 2) { + if (FF_STR_VOLUME_ID == 2) *tp++ = (TCHAR)'/'; + for (vl = 0; vl < n; *tp++ = (TCHAR)vp[vl], vl++) ; + if (FF_STR_VOLUME_ID == 1) *tp++ = (TCHAR)':'; + vl++; + } +#else /* Numeric volume ID */ + if (i >= 3) { + *tp++ = (TCHAR)'0' + CurrVol; + *tp++ = (TCHAR)':'; + vl = 2; + } +#endif + if (vl == 0) res = FR_NOT_ENOUGH_CORE; +#endif + /* Add current directory path */ + if (res == FR_OK) { + do *tp++ = buff[i++]; while (i < len); /* Copy stacked path string */ + } + } + FREE_NAMBUF(); + } + + *tp = 0; + LEAVE_FF(fs, res); +} + +#endif /* FF_FS_RPATH >= 2 */ +#endif /* FF_FS_RPATH >= 1 */ + + + +#if FF_FS_MINIMIZE <= 2 +/*-----------------------------------------------------------------------*/ +/* Seek File Read/Write Pointer */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_lseek ( + FIL* fp, /* Pointer to the file object */ + FSIZE_t ofs /* File pointer from top of file */ +) +{ + FRESULT res; + FATFS *fs; + DWORD clst, bcs; + LBA_t nsect; + FSIZE_t ifptr; +#if FF_USE_FASTSEEK + DWORD cl, pcl, ncl, tcl, tlen, ulen, *tbl; + LBA_t dsc; +#endif + + res = validate(&fp->obj, &fs); /* Check validity of the file object */ + if (res == FR_OK) res = (FRESULT)fp->err; +#if FF_FS_EXFAT && !FF_FS_READONLY + if (res == FR_OK && fs->fs_type == FS_EXFAT) { + res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */ + } +#endif + if (res != FR_OK) LEAVE_FF(fs, res); + +#if FF_USE_FASTSEEK + if (fp->cltbl) { /* Fast seek */ + if (ofs == CREATE_LINKMAP) { /* Create CLMT */ + tbl = fp->cltbl; + tlen = *tbl++; ulen = 2; /* Given table size and required table size */ + cl = fp->obj.sclust; /* Origin of the chain */ + if (cl != 0) { + do { + /* Get a fragment */ + tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */ + do { + pcl = cl; ncl++; + cl = get_fat(&fp->obj, cl); + if (cl <= 1) ABORT(fs, FR_INT_ERR); + if (cl == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR); + } while (cl == pcl + 1); + if (ulen <= tlen) { /* Store the length and top of the fragment */ + *tbl++ = ncl; *tbl++ = tcl; + } + } while (cl < fs->n_fatent); /* Repeat until end of chain */ + } + *fp->cltbl = ulen; /* Number of items used */ + if (ulen <= tlen) { + *tbl = 0; /* Terminate table */ + } else { + res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */ + } + } else { /* Fast seek */ + if (ofs > fp->obj.objsize) ofs = fp->obj.objsize; /* Clip offset at the file size */ + fp->fptr = ofs; /* Set file pointer */ + if (ofs > 0) { + fp->clust = clmt_clust(fp, ofs - 1); + dsc = clst2sect(fs, fp->clust); + if (dsc == 0) ABORT(fs, FR_INT_ERR); + dsc += (DWORD)((ofs - 1) / SS(fs)) & (fs->csize - 1); + if (fp->fptr % SS(fs) && dsc != fp->sect) { /* Refill sector cache if needed */ +#if !FF_FS_TINY +#if !FF_FS_READONLY + if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */ + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + fp->flag &= (BYTE)~FA_DIRTY; + } +#endif + if (disk_read(fs->pdrv, fp->buf, dsc, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Load current sector */ +#endif + fp->sect = dsc; + } + } + } + } else +#endif + + /* Normal Seek */ + { +#if FF_FS_EXFAT + if (fs->fs_type != FS_EXFAT && ofs >= 0x100000000) ofs = 0xFFFFFFFF; /* Clip at 4 GiB - 1 if at FATxx */ +#endif + if (ofs > fp->obj.objsize && (FF_FS_READONLY || !(fp->flag & FA_WRITE))) { /* In read-only mode, clip offset with the file size */ + ofs = fp->obj.objsize; + } + ifptr = fp->fptr; + fp->fptr = nsect = 0; + if (ofs > 0) { + bcs = (DWORD)fs->csize * SS(fs); /* Cluster size (byte) */ + if (ifptr > 0 && + (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */ + fp->fptr = (ifptr - 1) & ~(FSIZE_t)(bcs - 1); /* start from the current cluster */ + ofs -= fp->fptr; + clst = fp->clust; + } else { /* When seek to back cluster, */ + clst = fp->obj.sclust; /* start from the first cluster */ +#if !FF_FS_READONLY + if (clst == 0) { /* If no cluster chain, create a new chain */ + clst = create_chain(&fp->obj, 0); + if (clst == 1) ABORT(fs, FR_INT_ERR); + if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR); + fp->obj.sclust = clst; + } +#endif + fp->clust = clst; + } + if (clst != 0) { + while (ofs > bcs) { /* Cluster following loop */ + ofs -= bcs; fp->fptr += bcs; +#if !FF_FS_READONLY + if (fp->flag & FA_WRITE) { /* Check if in write mode or not */ + if (FF_FS_EXFAT && fp->fptr > fp->obj.objsize) { /* No FAT chain object needs correct objsize to generate FAT value */ + fp->obj.objsize = fp->fptr; + fp->flag |= FA_MODIFIED; + } + clst = create_chain(&fp->obj, clst); /* Follow chain with forceed stretch */ + if (clst == 0) { /* Clip file size in case of disk full */ + ofs = 0; break; + } + } else +#endif + { + clst = get_fat(&fp->obj, clst); /* Follow cluster chain if not in write mode */ + } + if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR); + if (clst <= 1 || clst >= fs->n_fatent) ABORT(fs, FR_INT_ERR); + fp->clust = clst; + } + fp->fptr += ofs; + if (ofs % SS(fs)) { + nsect = clst2sect(fs, clst); /* Current sector */ + if (nsect == 0) ABORT(fs, FR_INT_ERR); + nsect += (DWORD)(ofs / SS(fs)); + } + } + } + if (!FF_FS_READONLY && fp->fptr > fp->obj.objsize) { /* Set file change flag if the file size is extended */ + fp->obj.objsize = fp->fptr; + fp->flag |= FA_MODIFIED; + } + if (fp->fptr % SS(fs) && nsect != fp->sect) { /* Fill sector cache if needed */ +#if !FF_FS_TINY +#if !FF_FS_READONLY + if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */ + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + fp->flag &= (BYTE)~FA_DIRTY; + } +#endif + if (disk_read(fs->pdrv, fp->buf, nsect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */ +#endif + fp->sect = nsect; + } + } + + LEAVE_FF(fs, res); +} + + + +#if FF_FS_MINIMIZE <= 1 +/*-----------------------------------------------------------------------*/ +/* Create a Directory Object */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_opendir ( + DIR* dp, /* Pointer to directory object to create */ + const TCHAR* path /* Pointer to the directory path */ +) +{ + FRESULT res; + FATFS *fs; + DEF_NAMBUF + + + if (!dp) return FR_INVALID_OBJECT; + + /* Get logical drive */ + res = mount_volume(&path, &fs, 0); + if (res == FR_OK) { + dp->obj.fs = fs; + INIT_NAMBUF(fs); + res = follow_path(dp, path); /* Follow the path to the directory */ + if (res == FR_OK) { /* Follow completed */ + if (!(dp->fn[NSFLAG] & NS_NONAME)) { /* It is not the origin directory itself */ + if (dp->obj.attr & AM_DIR) { /* This object is a sub-directory */ +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + dp->obj.c_scl = dp->obj.sclust; /* Get containing directory inforamation */ + dp->obj.c_size = ((DWORD)dp->obj.objsize & 0xFFFFFF00) | dp->obj.stat; + dp->obj.c_ofs = dp->blk_ofs; + init_alloc_info(fs, &dp->obj); /* Get object allocation info */ + } else +#endif + { + dp->obj.sclust = ld_clust(fs, dp->dir); /* Get object allocation info */ + } + } else { /* This object is a file */ + res = FR_NO_PATH; + } + } + if (res == FR_OK) { + dp->obj.id = fs->id; + res = dir_sdi(dp, 0); /* Rewind directory */ +#if FF_FS_LOCK != 0 + if (res == FR_OK) { + if (dp->obj.sclust != 0) { + dp->obj.lockid = inc_lock(dp, 0); /* Lock the sub directory */ + if (!dp->obj.lockid) res = FR_TOO_MANY_OPEN_FILES; + } else { + dp->obj.lockid = 0; /* Root directory need not to be locked */ + } + } +#endif + } + } + FREE_NAMBUF(); + if (res == FR_NO_FILE) res = FR_NO_PATH; + } + if (res != FR_OK) dp->obj.fs = 0; /* Invalidate the directory object if function faild */ + + LEAVE_FF(fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Close Directory */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_closedir ( + DIR *dp /* Pointer to the directory object to be closed */ +) +{ + FRESULT res; + FATFS *fs; + + + res = validate(&dp->obj, &fs); /* Check validity of the file object */ + if (res == FR_OK) { +#if FF_FS_LOCK != 0 + if (dp->obj.lockid) res = dec_lock(dp->obj.lockid); /* Decrement sub-directory open counter */ + if (res == FR_OK) dp->obj.fs = 0; /* Invalidate directory object */ +#else + dp->obj.fs = 0; /* Invalidate directory object */ +#endif +#if FF_FS_REENTRANT + unlock_fs(fs, FR_OK); /* Unlock volume */ +#endif + } + return res; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Read Directory Entries in Sequence */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_readdir ( + DIR* dp, /* Pointer to the open directory object */ + FILINFO* fno /* Pointer to file information to return */ +) +{ + FRESULT res; + FATFS *fs; + DEF_NAMBUF + + + res = validate(&dp->obj, &fs); /* Check validity of the directory object */ + if (res == FR_OK) { + if (!fno) { + res = dir_sdi(dp, 0); /* Rewind the directory object */ + } else { + INIT_NAMBUF(fs); + res = DIR_READ_FILE(dp); /* Read an item */ + if (res == FR_NO_FILE) res = FR_OK; /* Ignore end of directory */ + if (res == FR_OK) { /* A valid entry is found */ + get_fileinfo(dp, fno); /* Get the object information */ + res = dir_next(dp, 0); /* Increment index for next */ + if (res == FR_NO_FILE) res = FR_OK; /* Ignore end of directory now */ + } + FREE_NAMBUF(); + } + } + LEAVE_FF(fs, res); +} + + + +#if FF_USE_FIND +/*-----------------------------------------------------------------------*/ +/* Find Next File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_findnext ( + DIR* dp, /* Pointer to the open directory object */ + FILINFO* fno /* Pointer to the file information structure */ +) +{ + FRESULT res; + + + for (;;) { + res = f_readdir(dp, fno); /* Get a directory item */ + if (res != FR_OK || !fno || !fno->fname[0]) break; /* Terminate if any error or end of directory */ + if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for the file name */ +#if FF_USE_LFN && FF_USE_FIND == 2 + if (pattern_matching(dp->pat, fno->altname, 0, 0)) break; /* Test for alternative name if exist */ +#endif + } + return res; +} + + + +/*-----------------------------------------------------------------------*/ +/* Find First File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_findfirst ( + DIR* dp, /* Pointer to the blank directory object */ + FILINFO* fno, /* Pointer to the file information structure */ + const TCHAR* path, /* Pointer to the directory to open */ + const TCHAR* pattern /* Pointer to the matching pattern */ +) +{ + FRESULT res; + + + dp->pat = pattern; /* Save pointer to pattern string */ + res = f_opendir(dp, path); /* Open the target directory */ + if (res == FR_OK) { + res = f_findnext(dp, fno); /* Find the first item */ + } + return res; +} + +#endif /* FF_USE_FIND */ + + + +#if FF_FS_MINIMIZE == 0 +/*-----------------------------------------------------------------------*/ +/* Get File Status */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_stat ( + const TCHAR* path, /* Pointer to the file path */ + FILINFO* fno /* Pointer to file information to return */ +) +{ + FRESULT res; + DIR dj; + DEF_NAMBUF + + + /* Get logical drive */ + res = mount_volume(&path, &dj.obj.fs, 0); + if (res == FR_OK) { + INIT_NAMBUF(dj.obj.fs); + res = follow_path(&dj, path); /* Follow the file path */ + if (res == FR_OK) { /* Follow completed */ + if (dj.fn[NSFLAG] & NS_NONAME) { /* It is origin directory */ + res = FR_INVALID_NAME; + } else { /* Found an object */ + if (fno) get_fileinfo(&dj, fno); + } + } + FREE_NAMBUF(); + } + + LEAVE_FF(dj.obj.fs, res); +} + + + +#if !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Get Number of Free Clusters */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_getfree ( + const TCHAR* path, /* Logical drive number */ + DWORD* nclst, /* Pointer to a variable to return number of free clusters */ + FATFS** fatfs /* Pointer to return pointer to corresponding filesystem object */ +) +{ + FRESULT res; + FATFS *fs; + DWORD nfree, clst, stat; + LBA_t sect; + UINT i; + FFOBJID obj; + + + /* Get logical drive */ + res = mount_volume(&path, &fs, 0); + if (res == FR_OK) { + *fatfs = fs; /* Return ptr to the fs object */ + /* If free_clst is valid, return it without full FAT scan */ + if (fs->free_clst <= fs->n_fatent - 2) { + *nclst = fs->free_clst; + } else { + /* Scan FAT to obtain number of free clusters */ + nfree = 0; + if (fs->fs_type == FS_FAT12) { /* FAT12: Scan bit field FAT entries */ + clst = 2; obj.fs = fs; + do { + stat = get_fat(&obj, clst); + if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } + if (stat == 1) { res = FR_INT_ERR; break; } + if (stat == 0) nfree++; + } while (++clst < fs->n_fatent); + } else { +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* exFAT: Scan allocation bitmap */ + BYTE bm; + UINT b; + + clst = fs->n_fatent - 2; /* Number of clusters */ + sect = fs->bitbase; /* Bitmap sector */ + i = 0; /* Offset in the sector */ + do { /* Counts numbuer of bits with zero in the bitmap */ + if (i == 0) { + res = move_window(fs, sect++); + if (res != FR_OK) break; + } + for (b = 8, bm = fs->win[i]; b && clst; b--, clst--) { + if (!(bm & 1)) nfree++; + bm >>= 1; + } + i = (i + 1) % SS(fs); + } while (clst); + } else +#endif + { /* FAT16/32: Scan WORD/DWORD FAT entries */ + clst = fs->n_fatent; /* Number of entries */ + sect = fs->fatbase; /* Top of the FAT */ + i = 0; /* Offset in the sector */ + do { /* Counts numbuer of entries with zero in the FAT */ + if (i == 0) { + res = move_window(fs, sect++); + if (res != FR_OK) break; + } + if (fs->fs_type == FS_FAT16) { + if (ld_word(fs->win + i) == 0) nfree++; + i += 2; + } else { + if ((ld_dword(fs->win + i) & 0x0FFFFFFF) == 0) nfree++; + i += 4; + } + i %= SS(fs); + } while (--clst); + } + } + *nclst = nfree; /* Return the free clusters */ + fs->free_clst = nfree; /* Now free_clst is valid */ + fs->fsi_flag |= 1; /* FAT32: FSInfo is to be updated */ + } + } + + LEAVE_FF(fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Truncate File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_truncate ( + FIL* fp /* Pointer to the file object */ +) +{ + FRESULT res; + FATFS *fs; + DWORD ncl; + + + res = validate(&fp->obj, &fs); /* Check validity of the file object */ + if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); + if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */ + + if (fp->fptr < fp->obj.objsize) { /* Process when fptr is not on the eof */ + if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */ + res = remove_chain(&fp->obj, fp->obj.sclust, 0); + fp->obj.sclust = 0; + } else { /* When truncate a part of the file, remove remaining clusters */ + ncl = get_fat(&fp->obj, fp->clust); + res = FR_OK; + if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR; + if (ncl == 1) res = FR_INT_ERR; + if (res == FR_OK && ncl < fs->n_fatent) { + res = remove_chain(&fp->obj, ncl, fp->clust); + } + } + fp->obj.objsize = fp->fptr; /* Set file size to current read/write point */ + fp->flag |= FA_MODIFIED; +#if !FF_FS_TINY + if (res == FR_OK && (fp->flag & FA_DIRTY)) { + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) { + res = FR_DISK_ERR; + } else { + fp->flag &= (BYTE)~FA_DIRTY; + } + } +#endif + if (res != FR_OK) ABORT(fs, res); + } + + LEAVE_FF(fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Delete a File/Directory */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_unlink ( + const TCHAR* path /* Pointer to the file or directory path */ +) +{ + FRESULT res; + DIR dj, sdj; + DWORD dclst = 0; + FATFS *fs; +#if FF_FS_EXFAT + FFOBJID obj; +#endif + DEF_NAMBUF + + + /* Get logical drive */ + res = mount_volume(&path, &fs, FA_WRITE); + if (res == FR_OK) { + dj.obj.fs = fs; + INIT_NAMBUF(fs); + res = follow_path(&dj, path); /* Follow the file path */ + if (FF_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT)) { + res = FR_INVALID_NAME; /* Cannot remove dot entry */ + } +#if FF_FS_LOCK != 0 + if (res == FR_OK) res = chk_lock(&dj, 2); /* Check if it is an open object */ +#endif + if (res == FR_OK) { /* The object is accessible */ + if (dj.fn[NSFLAG] & NS_NONAME) { + res = FR_INVALID_NAME; /* Cannot remove the origin directory */ + } else { + if (dj.obj.attr & AM_RDO) { + res = FR_DENIED; /* Cannot remove R/O object */ + } + } + if (res == FR_OK) { +#if FF_FS_EXFAT + obj.fs = fs; + if (fs->fs_type == FS_EXFAT) { + init_alloc_info(fs, &obj); + dclst = obj.sclust; + } else +#endif + { + dclst = ld_clust(fs, dj.dir); + } + if (dj.obj.attr & AM_DIR) { /* Is it a sub-directory? */ +#if FF_FS_RPATH != 0 + if (dclst == fs->cdir) { /* Is it the current directory? */ + res = FR_DENIED; + } else +#endif + { + sdj.obj.fs = fs; /* Open the sub-directory */ + sdj.obj.sclust = dclst; +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + sdj.obj.objsize = obj.objsize; + sdj.obj.stat = obj.stat; + } +#endif + res = dir_sdi(&sdj, 0); + if (res == FR_OK) { + res = DIR_READ_FILE(&sdj); /* Test if the directory is empty */ + if (res == FR_OK) res = FR_DENIED; /* Not empty? */ + if (res == FR_NO_FILE) res = FR_OK; /* Empty? */ + } + } + } + } + if (res == FR_OK) { + res = dir_remove(&dj); /* Remove the directory entry */ + if (res == FR_OK && dclst != 0) { /* Remove the cluster chain if exist */ +#if FF_FS_EXFAT + res = remove_chain(&obj, dclst, 0); +#else + res = remove_chain(&dj.obj, dclst, 0); +#endif + } + if (res == FR_OK) res = sync_fs(fs); + } + } + FREE_NAMBUF(); + } + + LEAVE_FF(fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Create a Directory */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_mkdir ( + const TCHAR* path /* Pointer to the directory path */ +) +{ + FRESULT res; + DIR dj; + FFOBJID sobj; + FATFS *fs; + DWORD dcl, pcl, tm; + DEF_NAMBUF + + + res = mount_volume(&path, &fs, FA_WRITE); /* Get logical drive */ + if (res == FR_OK) { + dj.obj.fs = fs; + INIT_NAMBUF(fs); + res = follow_path(&dj, path); /* Follow the file path */ + if (res == FR_OK) res = FR_EXIST; /* Name collision? */ + if (FF_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT)) { /* Invalid name? */ + res = FR_INVALID_NAME; + } + if (res == FR_NO_FILE) { /* It is clear to create a new directory */ + sobj.fs = fs; /* New object id to create a new chain */ + dcl = create_chain(&sobj, 0); /* Allocate a cluster for the new directory */ + res = FR_OK; + if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster? */ + if (dcl == 1) res = FR_INT_ERR; /* Any insanity? */ + if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR; /* Disk error? */ + tm = GET_FATTIME(); + if (res == FR_OK) { + res = dir_clear(fs, dcl); /* Clean up the new table */ + if (res == FR_OK) { + if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { /* Create dot entries (FAT only) */ + mem_set(fs->win + DIR_Name, ' ', 11); /* Create "." entry */ + fs->win[DIR_Name] = '.'; + fs->win[DIR_Attr] = AM_DIR; + st_dword(fs->win + DIR_ModTime, tm); + st_clust(fs, fs->win, dcl); + mem_cpy(fs->win + SZDIRE, fs->win, SZDIRE); /* Create ".." entry */ + fs->win[SZDIRE + 1] = '.'; pcl = dj.obj.sclust; + st_clust(fs, fs->win + SZDIRE, pcl); + fs->wflag = 1; + } + res = dir_register(&dj); /* Register the object to the parent directoy */ + } + } + if (res == FR_OK) { +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* Initialize directory entry block */ + st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Created time */ + st_dword(fs->dirbuf + XDIR_FstClus, dcl); /* Table start cluster */ + st_dword(fs->dirbuf + XDIR_FileSize, (DWORD)fs->csize * SS(fs)); /* Directory size needs to be valid */ + st_dword(fs->dirbuf + XDIR_ValidFileSize, (DWORD)fs->csize * SS(fs)); + fs->dirbuf[XDIR_GenFlags] = 3; /* Initialize the object flag */ + fs->dirbuf[XDIR_Attr] = AM_DIR; /* Attribute */ + res = store_xdir(&dj); + } else +#endif + { + st_dword(dj.dir + DIR_ModTime, tm); /* Created time */ + st_clust(fs, dj.dir, dcl); /* Table start cluster */ + dj.dir[DIR_Attr] = AM_DIR; /* Attribute */ + fs->wflag = 1; + } + if (res == FR_OK) { + res = sync_fs(fs); + } + } else { + remove_chain(&sobj, dcl, 0); /* Could not register, remove the allocated cluster */ + } + } + FREE_NAMBUF(); + } + + LEAVE_FF(fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Rename a File/Directory */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_rename ( + const TCHAR* path_old, /* Pointer to the object name to be renamed */ + const TCHAR* path_new /* Pointer to the new name */ +) +{ + FRESULT res; + DIR djo, djn; + FATFS *fs; + BYTE buf[FF_FS_EXFAT ? SZDIRE * 2 : SZDIRE], *dir; + LBA_t sect; + DEF_NAMBUF + + + get_ldnumber(&path_new); /* Snip the drive number of new name off */ + res = mount_volume(&path_old, &fs, FA_WRITE); /* Get logical drive of the old object */ + if (res == FR_OK) { + djo.obj.fs = fs; + INIT_NAMBUF(fs); + res = follow_path(&djo, path_old); /* Check old object */ + if (res == FR_OK && (djo.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check validity of name */ +#if FF_FS_LOCK != 0 + if (res == FR_OK) { + res = chk_lock(&djo, 2); + } +#endif + if (res == FR_OK) { /* Object to be renamed is found */ +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* At exFAT volume */ + BYTE nf, nn; + WORD nh; + + mem_cpy(buf, fs->dirbuf, SZDIRE * 2); /* Save 85+C0 entry of old object */ + mem_cpy(&djn, &djo, sizeof djo); + res = follow_path(&djn, path_new); /* Make sure if new object name is not in use */ + if (res == FR_OK) { /* Is new name already in use by any other object? */ + res = (djn.obj.sclust == djo.obj.sclust && djn.dptr == djo.dptr) ? FR_NO_FILE : FR_EXIST; + } + if (res == FR_NO_FILE) { /* It is a valid path and no name collision */ + res = dir_register(&djn); /* Register the new entry */ + if (res == FR_OK) { + nf = fs->dirbuf[XDIR_NumSec]; nn = fs->dirbuf[XDIR_NumName]; + nh = ld_word(fs->dirbuf + XDIR_NameHash); + mem_cpy(fs->dirbuf, buf, SZDIRE * 2); /* Restore 85+C0 entry */ + fs->dirbuf[XDIR_NumSec] = nf; fs->dirbuf[XDIR_NumName] = nn; + st_word(fs->dirbuf + XDIR_NameHash, nh); + if (!(fs->dirbuf[XDIR_Attr] & AM_DIR)) fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive attribute if it is a file */ +/* Start of critical section where an interruption can cause a cross-link */ + res = store_xdir(&djn); + } + } + } else +#endif + { /* At FAT/FAT32 volume */ + mem_cpy(buf, djo.dir, SZDIRE); /* Save directory entry of the object */ + mem_cpy(&djn, &djo, sizeof (DIR)); /* Duplicate the directory object */ + res = follow_path(&djn, path_new); /* Make sure if new object name is not in use */ + if (res == FR_OK) { /* Is new name already in use by any other object? */ + res = (djn.obj.sclust == djo.obj.sclust && djn.dptr == djo.dptr) ? FR_NO_FILE : FR_EXIST; + } + if (res == FR_NO_FILE) { /* It is a valid path and no name collision */ + res = dir_register(&djn); /* Register the new entry */ + if (res == FR_OK) { + dir = djn.dir; /* Copy directory entry of the object except name */ + mem_cpy(dir + 13, buf + 13, SZDIRE - 13); + dir[DIR_Attr] = buf[DIR_Attr]; + if (!(dir[DIR_Attr] & AM_DIR)) dir[DIR_Attr] |= AM_ARC; /* Set archive attribute if it is a file */ + fs->wflag = 1; + if ((dir[DIR_Attr] & AM_DIR) && djo.obj.sclust != djn.obj.sclust) { /* Update .. entry in the sub-directory if needed */ + sect = clst2sect(fs, ld_clust(fs, dir)); + if (sect == 0) { + res = FR_INT_ERR; + } else { +/* Start of critical section where an interruption can cause a cross-link */ + res = move_window(fs, sect); + dir = fs->win + SZDIRE * 1; /* Ptr to .. entry */ + if (res == FR_OK && dir[1] == '.') { + st_clust(fs, dir, djn.obj.sclust); + fs->wflag = 1; + } + } + } + } + } + } + if (res == FR_OK) { + res = dir_remove(&djo); /* Remove old entry */ + if (res == FR_OK) { + res = sync_fs(fs); + } + } +/* End of the critical section */ + } + FREE_NAMBUF(); + } + + LEAVE_FF(fs, res); +} + +#endif /* !FF_FS_READONLY */ +#endif /* FF_FS_MINIMIZE == 0 */ +#endif /* FF_FS_MINIMIZE <= 1 */ +#endif /* FF_FS_MINIMIZE <= 2 */ + + + +#if FF_USE_CHMOD && !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Change Attribute */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_chmod ( + const TCHAR* path, /* Pointer to the file path */ + BYTE attr, /* Attribute bits */ + BYTE mask /* Attribute mask to change */ +) +{ + FRESULT res; + DIR dj; + FATFS *fs; + DEF_NAMBUF + + + res = mount_volume(&path, &fs, FA_WRITE); /* Get logical drive */ + if (res == FR_OK) { + dj.obj.fs = fs; + INIT_NAMBUF(fs); + res = follow_path(&dj, path); /* Follow the file path */ + if (res == FR_OK && (dj.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check object validity */ + if (res == FR_OK) { + mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */ +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + fs->dirbuf[XDIR_Attr] = (attr & mask) | (fs->dirbuf[XDIR_Attr] & (BYTE)~mask); /* Apply attribute change */ + res = store_xdir(&dj); + } else +#endif + { + dj.dir[DIR_Attr] = (attr & mask) | (dj.dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */ + fs->wflag = 1; + } + if (res == FR_OK) { + res = sync_fs(fs); + } + } + FREE_NAMBUF(); + } + + LEAVE_FF(fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Change Timestamp */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_utime ( + const TCHAR* path, /* Pointer to the file/directory name */ + const FILINFO* fno /* Pointer to the timestamp to be set */ +) +{ + FRESULT res; + DIR dj; + FATFS *fs; + DEF_NAMBUF + + + res = mount_volume(&path, &fs, FA_WRITE); /* Get logical drive */ + if (res == FR_OK) { + dj.obj.fs = fs; + INIT_NAMBUF(fs); + res = follow_path(&dj, path); /* Follow the file path */ + if (res == FR_OK && (dj.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check object validity */ + if (res == FR_OK) { +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + st_dword(fs->dirbuf + XDIR_ModTime, (DWORD)fno->fdate << 16 | fno->ftime); + res = store_xdir(&dj); + } else +#endif + { + st_dword(dj.dir + DIR_ModTime, (DWORD)fno->fdate << 16 | fno->ftime); + fs->wflag = 1; + } + if (res == FR_OK) { + res = sync_fs(fs); + } + } + FREE_NAMBUF(); + } + + LEAVE_FF(fs, res); +} + +#endif /* FF_USE_CHMOD && !FF_FS_READONLY */ + + + +#if FF_USE_LABEL +/*-----------------------------------------------------------------------*/ +/* Get Volume Label */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_getlabel ( + const TCHAR* path, /* Logical drive number */ + TCHAR* label, /* Buffer to store the volume label */ + DWORD* vsn /* Variable to store the volume serial number */ +) +{ + FRESULT res; + DIR dj; + FATFS *fs; + UINT si, di; + WCHAR wc; + + /* Get logical drive */ + res = mount_volume(&path, &fs, 0); + + /* Get volume label */ + if (res == FR_OK && label) { + dj.obj.fs = fs; dj.obj.sclust = 0; /* Open root directory */ + res = dir_sdi(&dj, 0); + if (res == FR_OK) { + res = DIR_READ_LABEL(&dj); /* Find a volume label entry */ + if (res == FR_OK) { +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + WCHAR hs; + + for (si = di = hs = 0; si < dj.dir[XDIR_NumLabel]; si++) { /* Extract volume label from 83 entry */ + wc = ld_word(dj.dir + XDIR_Label + si * 2); + if (hs == 0 && IsSurrogate(wc)) { /* Is the code a surrogate? */ + hs = wc; continue; + } + wc = put_utf((DWORD)hs << 16 | wc, &label[di], 4); + if (wc == 0) { di = 0; break; } + di += wc; + hs = 0; + } + if (hs != 0) di = 0; /* Broken surrogate pair? */ + label[di] = 0; + } else +#endif + { + si = di = 0; /* Extract volume label from AM_VOL entry */ + while (si < 11) { + wc = dj.dir[si++]; +#if FF_USE_LFN && FF_LFN_UNICODE >= 1 /* Unicode output */ + if (dbc_1st((BYTE)wc) && si < 11) wc = wc << 8 | dj.dir[si++]; /* Is it a DBC? */ + wc = ff_oem2uni(wc, CODEPAGE); /* Convert it into Unicode */ + if (wc != 0) wc = put_utf(wc, &label[di], 4); /* Put it in Unicode */ + if (wc == 0) { di = 0; break; } + di += wc; +#else /* ANSI/OEM output */ + label[di++] = (TCHAR)wc; +#endif + } + do { /* Truncate trailing spaces */ + label[di] = 0; + if (di == 0) break; + } while (label[--di] == ' '); + } + } + } + if (res == FR_NO_FILE) { /* No label entry and return nul string */ + label[0] = 0; + res = FR_OK; + } + } + + /* Get volume serial number */ + if (res == FR_OK && vsn) { + res = move_window(fs, fs->volbase); + if (res == FR_OK) { + switch (fs->fs_type) { + case FS_EXFAT: + di = BPB_VolIDEx; break; + + case FS_FAT32: + di = BS_VolID32; break; + + default: + di = BS_VolID; + } + *vsn = ld_dword(fs->win + di); + } + } + + LEAVE_FF(fs, res); +} + + + +#if !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Set Volume Label */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_setlabel ( + const TCHAR* label /* Volume label to set with heading logical drive number */ +) +{ + FRESULT res; + DIR dj; + FATFS *fs; + BYTE dirvn[22]; + UINT di; + WCHAR wc; + static const char badchr[] = "+.,;=[]/\\\"*:<>\?|\x7F"; /* [0..] for FAT, [7..] for exFAT */ +#if FF_USE_LFN + DWORD dc; +#endif + + /* Get logical drive */ + res = mount_volume(&label, &fs, FA_WRITE); + if (res != FR_OK) LEAVE_FF(fs, res); + +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */ + mem_set(dirvn, 0, 22); + di = 0; + while ((UINT)*label >= ' ') { /* Create volume label */ + dc = tchar2uni(&label); /* Get a Unicode character */ + if (dc >= 0x10000) { + if (dc == 0xFFFFFFFF || di >= 10) { /* Wrong surrogate or buffer overflow */ + dc = 0; + } else { + st_word(dirvn + di * 2, (WCHAR)(dc >> 16)); di++; + } + } + if (dc == 0 || chk_chr(badchr + 7, (int)dc) || di >= 11) { /* Check validity of the volume label */ + LEAVE_FF(fs, FR_INVALID_NAME); + } + st_word(dirvn + di * 2, (WCHAR)dc); di++; + } + } else +#endif + { /* On the FAT/FAT32 volume */ + mem_set(dirvn, ' ', 11); + di = 0; + while ((UINT)*label >= ' ') { /* Create volume label */ +#if FF_USE_LFN + dc = tchar2uni(&label); + wc = (dc < 0x10000) ? ff_uni2oem(ff_wtoupper(dc), CODEPAGE) : 0; +#else /* ANSI/OEM input */ + wc = (BYTE)*label++; + if (dbc_1st((BYTE)wc)) wc = dbc_2nd((BYTE)*label) ? wc << 8 | (BYTE)*label++ : 0; + if (IsLower(wc)) wc -= 0x20; /* To upper ASCII characters */ +#if FF_CODE_PAGE == 0 + if (ExCvt && wc >= 0x80) wc = ExCvt[wc - 0x80]; /* To upper extended characters (SBCS cfg) */ +#elif FF_CODE_PAGE < 900 + if (wc >= 0x80) wc = ExCvt[wc - 0x80]; /* To upper extended characters (SBCS cfg) */ +#endif +#endif + if (wc == 0 || chk_chr(badchr + 0, (int)wc) || di >= (UINT)((wc >= 0x100) ? 10 : 11)) { /* Reject invalid characters for volume label */ + LEAVE_FF(fs, FR_INVALID_NAME); + } + if (wc >= 0x100) dirvn[di++] = (BYTE)(wc >> 8); + dirvn[di++] = (BYTE)wc; + } + if (dirvn[0] == DDEM) LEAVE_FF(fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */ + while (di && dirvn[di - 1] == ' ') di--; /* Snip trailing spaces */ + } + + /* Set volume label */ + dj.obj.fs = fs; dj.obj.sclust = 0; /* Open root directory */ + res = dir_sdi(&dj, 0); + if (res == FR_OK) { + res = DIR_READ_LABEL(&dj); /* Get volume label entry */ + if (res == FR_OK) { + if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) { + dj.dir[XDIR_NumLabel] = (BYTE)di; /* Change the volume label */ + mem_cpy(dj.dir + XDIR_Label, dirvn, 22); + } else { + if (di != 0) { + mem_cpy(dj.dir, dirvn, 11); /* Change the volume label */ + } else { + dj.dir[DIR_Name] = DDEM; /* Remove the volume label */ + } + } + fs->wflag = 1; + res = sync_fs(fs); + } else { /* No volume label entry or an error */ + if (res == FR_NO_FILE) { + res = FR_OK; + if (di != 0) { /* Create a volume label entry */ + res = dir_alloc(&dj, 1); /* Allocate an entry */ + if (res == FR_OK) { + mem_set(dj.dir, 0, SZDIRE); /* Clean the entry */ + if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) { + dj.dir[XDIR_Type] = ET_VLABEL; /* Create volume label entry */ + dj.dir[XDIR_NumLabel] = (BYTE)di; + mem_cpy(dj.dir + XDIR_Label, dirvn, 22); + } else { + dj.dir[DIR_Attr] = AM_VOL; /* Create volume label entry */ + mem_cpy(dj.dir, dirvn, 11); + } + fs->wflag = 1; + res = sync_fs(fs); + } + } + } + } + } + + LEAVE_FF(fs, res); +} + +#endif /* !FF_FS_READONLY */ +#endif /* FF_USE_LABEL */ + + + +#if FF_USE_EXPAND && !FF_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Allocate a Contiguous Blocks to the File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_expand ( + FIL* fp, /* Pointer to the file object */ + FSIZE_t fsz, /* File size to be expanded to */ + BYTE opt /* Operation mode 0:Find and prepare or 1:Find and allocate */ +) +{ + FRESULT res; + FATFS *fs; + DWORD n, clst, stcl, scl, ncl, tcl, lclst; + + + res = validate(&fp->obj, &fs); /* Check validity of the file object */ + if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); + if (fsz == 0 || fp->obj.objsize != 0 || !(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); +#if FF_FS_EXFAT + if (fs->fs_type != FS_EXFAT && fsz >= 0x100000000) LEAVE_FF(fs, FR_DENIED); /* Check if in size limit */ +#endif + n = (DWORD)fs->csize * SS(fs); /* Cluster size */ + tcl = (DWORD)(fsz / n) + ((fsz & (n - 1)) ? 1 : 0); /* Number of clusters required */ + stcl = fs->last_clst; lclst = 0; + if (stcl < 2 || stcl >= fs->n_fatent) stcl = 2; + +#if FF_FS_EXFAT + if (fs->fs_type == FS_EXFAT) { + scl = find_bitmap(fs, stcl, tcl); /* Find a contiguous cluster block */ + if (scl == 0) res = FR_DENIED; /* No contiguous cluster block was found */ + if (scl == 0xFFFFFFFF) res = FR_DISK_ERR; + if (res == FR_OK) { /* A contiguous free area is found */ + if (opt) { /* Allocate it now */ + res = change_bitmap(fs, scl, tcl, 1); /* Mark the cluster block 'in use' */ + lclst = scl + tcl - 1; + } else { /* Set it as suggested point for next allocation */ + lclst = scl - 1; + } + } + } else +#endif + { + scl = clst = stcl; ncl = 0; + for (;;) { /* Find a contiguous cluster block */ + n = get_fat(&fp->obj, clst); + if (++clst >= fs->n_fatent) clst = 2; + if (n == 1) { res = FR_INT_ERR; break; } + if (n == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } + if (n == 0) { /* Is it a free cluster? */ + if (++ncl == tcl) break; /* Break if a contiguous cluster block is found */ + } else { + scl = clst; ncl = 0; /* Not a free cluster */ + } + if (clst == stcl) { res = FR_DENIED; break; } /* No contiguous cluster? */ + } + if (res == FR_OK) { /* A contiguous free area is found */ + if (opt) { /* Allocate it now */ + for (clst = scl, n = tcl; n; clst++, n--) { /* Create a cluster chain on the FAT */ + res = put_fat(fs, clst, (n == 1) ? 0xFFFFFFFF : clst + 1); + if (res != FR_OK) break; + lclst = clst; + } + } else { /* Set it as suggested point for next allocation */ + lclst = scl - 1; + } + } + } + + if (res == FR_OK) { + fs->last_clst = lclst; /* Set suggested start cluster to start next */ + if (opt) { /* Is it allocated now? */ + fp->obj.sclust = scl; /* Update object allocation information */ + fp->obj.objsize = fsz; + if (FF_FS_EXFAT) fp->obj.stat = 2; /* Set status 'contiguous chain' */ + fp->flag |= FA_MODIFIED; + if (fs->free_clst <= fs->n_fatent - 2) { /* Update FSINFO */ + fs->free_clst -= tcl; + fs->fsi_flag |= 1; + } + } + } + + LEAVE_FF(fs, res); +} + +#endif /* FF_USE_EXPAND && !FF_FS_READONLY */ + + + +#if FF_USE_FORWARD +/*-----------------------------------------------------------------------*/ +/* Forward Data to the Stream Directly */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_forward ( + FIL* fp, /* Pointer to the file object */ + UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */ + UINT btf, /* Number of bytes to forward */ + UINT* bf /* Pointer to number of bytes forwarded */ +) +{ + FRESULT res; + FATFS *fs; + DWORD clst; + LBA_t sect; + FSIZE_t remain; + UINT rcnt, csect; + BYTE *dbuf; + + + *bf = 0; /* Clear transfer byte counter */ + res = validate(&fp->obj, &fs); /* Check validity of the file object */ + if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); + if (!(fp->flag & FA_READ)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */ + + remain = fp->obj.objsize - fp->fptr; + if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */ + + for ( ; btf && (*func)(0, 0); /* Repeat until all data transferred or stream goes busy */ + fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) { + csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */ + if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */ + if (csect == 0) { /* On the cluster boundary? */ + clst = (fp->fptr == 0) ? /* On the top of the file? */ + fp->obj.sclust : get_fat(&fp->obj, fp->clust); + if (clst <= 1) ABORT(fs, FR_INT_ERR); + if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR); + fp->clust = clst; /* Update current cluster */ + } + } + sect = clst2sect(fs, fp->clust); /* Get current data sector */ + if (sect == 0) ABORT(fs, FR_INT_ERR); + sect += csect; +#if FF_FS_TINY + if (move_window(fs, sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window to the file data */ + dbuf = fs->win; +#else + if (fp->sect != sect) { /* Fill sector cache with file data */ +#if !FF_FS_READONLY + if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */ + if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + fp->flag &= (BYTE)~FA_DIRTY; + } +#endif + if (disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); + } + dbuf = fp->buf; +#endif + fp->sect = sect; + rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes remains in the sector */ + if (rcnt > btf) rcnt = btf; /* Clip it by btr if needed */ + rcnt = (*func)(dbuf + ((UINT)fp->fptr % SS(fs)), rcnt); /* Forward the file data */ + if (rcnt == 0) ABORT(fs, FR_INT_ERR); + } + + LEAVE_FF(fs, FR_OK); +} +#endif /* FF_USE_FORWARD */ + + + +#if !FF_FS_READONLY && FF_USE_MKFS +/*-----------------------------------------------------------------------*/ +/* Create an FAT/exFAT volume */ +/*-----------------------------------------------------------------------*/ + +#define N_SEC_TRACK 63 /* Sectors per track for determination of drive CHS */ +#define GPT_ALIGN 0x100000 /* Alignment of partitions in GPT [byte] (>=128KB) */ +#define GPT_ITEMS 128 /* Number of GPT table size (>=128, sector aligned) */ + + +/* Create partitions on the physical drive */ + +static FRESULT create_partition ( + BYTE drv, /* Physical drive number */ + const LBA_t plst[], /* Partition list */ + UINT sys, /* System ID (for only MBR, temp setting) and bit8:GPT */ + BYTE* buf /* Working buffer for a sector */ +) +{ + UINT i, cy; + LBA_t sz_drv; + DWORD sz_drv32, s_lba32, n_lba32; + BYTE *pte, hd, n_hd, sc, n_sc; + + /* Get drive size */ + if (disk_ioctl(drv, GET_SECTOR_COUNT, &sz_drv) != RES_OK) return FR_DISK_ERR; + +#if FF_LBA64 + if (sz_drv >= FF_MIN_GPT) { /* Create partitions in GPT */ + WORD ss; + UINT sz_pt, pi, si, ofs; + DWORD bcc, rnd, align; + QWORD s_lba64, n_lba64, sz_pool, s_bpt; + static const BYTE gpt_mbr[16] = {0x00, 0x00, 0x02, 0x00, 0xEE, 0xFE, 0xFF, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF}; + +#if FF_MAX_SS != FF_MIN_SS + if (disk_ioctl(drv, GET_SECTOR_SIZE, &ss) != RES_OK) return FR_DISK_ERR; /* Get sector size */ + if (ss > FF_MAX_SS || ss < FF_MIN_SS || (ss & (ss - 1))) return FR_DISK_ERR; +#else + ss = FF_MAX_SS; +#endif + rnd = GET_FATTIME(); /* Random seed */ + align = GPT_ALIGN / ss; /* Partition alignment [sector] */ + sz_pt = GPT_ITEMS * SZ_GPTE / ss; /* Size of PT [sector] */ + s_bpt = sz_drv - sz_pt - 1; /* Backup PT start sector */ + s_lba64 = 2 + sz_pt; /* First allocatable sector */ + sz_pool = s_bpt - s_lba64; /* Size of allocatable area */ + bcc = 0xFFFFFFFF; n_lba64 = 1; + pi = si = 0; /* partition table index, size table index */ + do { + if (pi * SZ_GPTE % ss == 0) mem_set(buf, 0, ss); /* Clean the buffer if needed */ + if (n_lba64 != 0) { /* Is the size table not termintated? */ + s_lba64 = (s_lba64 + align - 1) & ((QWORD)0 - align); /* Align partition start */ + n_lba64 = plst[si++]; /* Get a partition size */ + if (n_lba64 <= 100) { /* Is the size in percentage? */ + n_lba64 = sz_pool * n_lba64 / 100; + n_lba64 = (n_lba64 + align - 1) & ((QWORD)0 - align); /* Align partition end (only if in percentage) */ + } + if (s_lba64 + n_lba64 > s_bpt) { /* Clip at end of the pool */ + n_lba64 = (s_lba64 < s_bpt) ? s_bpt - s_lba64 : 0; + } + } + if (n_lba64 != 0) { /* Add a partition? */ + ofs = pi * SZ_GPTE % ss; + mem_cpy(buf + ofs + GPTE_PtGuid, GUID_MS_Basic, 16); /* Partition GUID (Microsoft Basic Data) */ + rnd = make_rand(rnd, buf + ofs + GPTE_UpGuid, 16); /* Unique partition GUID */ + st_qword(buf + ofs + GPTE_FstLba, s_lba64); /* Partition start LBA */ + st_qword(buf + ofs + GPTE_LstLba, s_lba64 + n_lba64 - 1); /* Partition end LBA */ + s_lba64 += n_lba64; /* Next partition LBA */ + } + if ((pi + 1) * SZ_GPTE % ss == 0) { /* Write the buffer if it is filled up */ + for (i = 0; i < ss; bcc = crc32(bcc, buf[i++])) ; /* Calculate table check sum */ + if (disk_write(drv, buf, 2 + pi * SZ_GPTE / ss, 1) != RES_OK) return FR_DISK_ERR; /* Primary table */ + if (disk_write(drv, buf, s_bpt + pi * SZ_GPTE / ss, 1) != RES_OK) return FR_DISK_ERR; /* Secondary table */ + } + } while (++pi < GPT_ITEMS); + + /* Create primary GPT header */ + mem_set(buf, 0, ss); + mem_cpy(buf + GPTH_Sign, "EFI PART" "\0\0\1\0" "\x5C\0\0", 16); /* Signature, version (1.0) and size (92) */ + st_dword(buf + GPTH_PtBcc, ~bcc); /* Table check sum */ + st_qword(buf + GPTH_CurLba, 1); /* LBA of this header */ + st_qword(buf + GPTH_BakLba, sz_drv - 1); /* LBA of another header */ + st_qword(buf + GPTH_FstLba, 2 + sz_pt); /* LBA of first allocatable sector */ + st_qword(buf + GPTH_LstLba, s_bpt - 1); /* LBA of last allocatable sector */ + st_dword(buf + GPTH_PteSize, SZ_GPTE); /* Size of a table entry */ + st_dword(buf + GPTH_PtNum, GPT_ITEMS); /* Number of table entries */ + st_dword(buf + GPTH_PtOfs, 2); /* LBA of this table */ + rnd = make_rand(rnd, buf + GPTH_DskGuid, 16); /* Disk GUID */ + for (i = 0, bcc= 0xFFFFFFFF; i < 92; bcc = crc32(bcc, buf[i++])) ; /* Calculate header check sum */ + st_dword(buf + GPTH_Bcc, ~bcc); /* Header check sum */ + if (disk_write(drv, buf, 1, 1) != RES_OK) return FR_DISK_ERR; + + /* Create secondary GPT header */ + st_qword(buf + GPTH_CurLba, sz_drv - 1); /* LBA of this header */ + st_qword(buf + GPTH_BakLba, 1); /* LBA of another header */ + st_qword(buf + GPTH_PtOfs, s_bpt); /* LBA of this table */ + st_dword(buf + GPTH_Bcc, 0); + for (i = 0, bcc= 0xFFFFFFFF; i < 92; bcc = crc32(bcc, buf[i++])) ; /* Calculate header check sum */ + st_dword(buf + GPTH_Bcc, ~bcc); /* Header check sum */ + if (disk_write(drv, buf, sz_drv - 1, 1) != RES_OK) return FR_DISK_ERR; + + /* Create protective MBR */ + mem_set(buf, 0, ss); + mem_cpy(buf + MBR_Table, gpt_mbr, 16); /* Create a GPT partition */ + st_word(buf + BS_55AA, 0xAA55); + if (disk_write(drv, buf, 0, 1) != RES_OK) return FR_DISK_ERR; + + } else +#endif + { /* Create partitions in MBR */ + sz_drv32 = (DWORD)sz_drv; + n_sc = N_SEC_TRACK; /* Determine drive CHS without any consideration of the drive geometry */ + for (n_hd = 8; n_hd != 0 && sz_drv32 / n_hd / n_sc > 1024; n_hd *= 2) ; + if (n_hd == 0) n_hd = 255; /* Number of heads needs to be <256 */ + + mem_set(buf, 0, FF_MAX_SS); /* Clear MBR */ + pte = buf + MBR_Table; /* Partition table in the MBR */ + for (i = 0, s_lba32 = n_sc; i < 4 && s_lba32 != 0 && s_lba32 < sz_drv32; i++, s_lba32 += n_lba32) { + n_lba32 = (DWORD)plst[i]; /* Get partition size */ + if (n_lba32 <= 100) n_lba32 = (n_lba32 == 100) ? sz_drv32 : sz_drv32 / 100 * n_lba32; /* Size in percentage? */ + if (s_lba32 + n_lba32 > sz_drv32 || s_lba32 + n_lba32 < s_lba32) n_lba32 = sz_drv32 - s_lba32; /* Clip at drive size */ + if (n_lba32 == 0) break; /* End of table or no sector to allocate? */ + + st_dword(pte + PTE_StLba, s_lba32); /* Start LBA */ + st_dword(pte + PTE_SizLba, n_lba32); /* Number of sectors */ + pte[PTE_System] = (BYTE)sys; /* System type */ + + cy = (UINT)(s_lba32 / n_sc / n_hd); /* Start cylinder */ + hd = (BYTE)(s_lba32 / n_sc % n_hd); /* Start head */ + sc = (BYTE)(s_lba32 % n_sc + 1); /* Start sector */ + pte[PTE_StHead] = hd; + pte[PTE_StSec] = (BYTE)((cy >> 2 & 0xC0) | sc); + pte[PTE_StCyl] = (BYTE)cy; + + cy = (UINT)((s_lba32 + n_lba32 - 1) / n_sc / n_hd); /* End cylinder */ + hd = (BYTE)((s_lba32 + n_lba32 - 1) / n_sc % n_hd); /* End head */ + sc = (BYTE)((s_lba32 + n_lba32 - 1) % n_sc + 1); /* End sector */ + pte[PTE_EdHead] = hd; + pte[PTE_EdSec] = (BYTE)((cy >> 2 & 0xC0) | sc); + pte[PTE_EdCyl] = (BYTE)cy; + + pte += SZ_PTE; /* Next entry */ + } + + st_word(buf + BS_55AA, 0xAA55); /* MBR signature */ + if (disk_write(drv, buf, 0, 1) != RES_OK) return FR_DISK_ERR; /* Write it to the MBR */ + } + + return FR_OK; +} + + + +FRESULT f_mkfs ( + const TCHAR* path, /* Logical drive number */ + const MKFS_PARM* opt, /* Format options */ + void* work, /* Pointer to working buffer (null: use heap memory) */ + UINT len /* Size of working buffer [byte] */ +) +{ + static const WORD cst[] = {1, 4, 16, 64, 256, 512, 0}; /* Cluster size boundary for FAT volume (4Ks unit) */ + static const WORD cst32[] = {1, 2, 4, 8, 16, 32, 0}; /* Cluster size boundary for FAT32 volume (128Ks unit) */ + static const MKFS_PARM defopt = {FM_ANY, 0, 0, 0, 0}; /* Default parameter */ + BYTE fsopt, fsty, sys, *buf, *pte, pdrv, ipart; + WORD ss; /* Sector size */ + DWORD sz_buf, sz_blk, n_clst, pau, nsect, n; + LBA_t sz_vol, b_vol, b_fat, b_data; /* Size of volume, Base LBA of volume, fat, data */ + LBA_t sect, lba[2]; + DWORD sz_rsv, sz_fat, sz_dir, sz_au; /* Size of reserved, fat, dir, data, cluster */ + UINT n_fat, n_root, i; /* Index, Number of FATs and Number of roor dir entries */ + int vol; + DSTATUS ds; + FRESULT fr; + + + /* Check mounted drive and clear work area */ + vol = get_ldnumber(&path); /* Get target logical drive */ + if (vol < 0) return FR_INVALID_DRIVE; + if (FatFs[vol]) FatFs[vol]->fs_type = 0; /* Clear the fs object if mounted */ + pdrv = LD2PD(vol); /* Physical drive */ + ipart = LD2PT(vol); /* Partition (0:create as new, 1..:get from partition table) */ + if (!opt) opt = &defopt; /* Use default parameter if it is not given */ + + /* Get physical drive status (sz_drv, sz_blk, ss) */ + ds = disk_initialize(pdrv); + if (ds & STA_NOINIT) return FR_NOT_READY; + if (ds & STA_PROTECT) return FR_WRITE_PROTECTED; + sz_blk = opt->align; + if (sz_blk == 0 && disk_ioctl(pdrv, GET_BLOCK_SIZE, &sz_blk) != RES_OK) sz_blk = 1; + if (sz_blk == 0 || sz_blk > 0x8000 || (sz_blk & (sz_blk - 1))) sz_blk = 1; +#if FF_MAX_SS != FF_MIN_SS + if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &ss) != RES_OK) return FR_DISK_ERR; + if (ss > FF_MAX_SS || ss < FF_MIN_SS || (ss & (ss - 1))) return FR_DISK_ERR; +#else + ss = FF_MAX_SS; +#endif + /* Options for FAT sub-type and FAT parameters */ + fsopt = opt->fmt & (FM_ANY | FM_SFD); + n_fat = (opt->n_fat >= 1 && opt->n_fat <= 2) ? opt->n_fat : 1; + n_root = (opt->n_root >= 1 && opt->n_root <= 32768 && (opt->n_root % (ss / SZDIRE)) == 0) ? opt->n_root : 512; + sz_au = (opt->au_size <= 0x1000000 && (opt->au_size & (opt->au_size - 1)) == 0) ? opt->au_size : 0; + sz_au /= ss; /* Byte --> Sector */ + + /* Get working buffer */ + sz_buf = len / ss; /* Size of working buffer [sector] */ + if (sz_buf == 0) return FR_NOT_ENOUGH_CORE; + buf = (BYTE*)work; /* Working buffer */ +#if FF_USE_LFN == 3 + if (!buf) buf = ff_memalloc(sz_buf * ss); /* Use heap memory for working buffer */ +#endif + if (!buf) return FR_NOT_ENOUGH_CORE; + + /* Determine where the volume to be located (b_vol, sz_vol) */ + b_vol = sz_vol = 0; + if (FF_MULTI_PARTITION && ipart != 0) { /* Is the volume associated with any specific partition? */ + /* Get partition location from the existing partition table */ + if (disk_read(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Load MBR */ + if (ld_word(buf + BS_55AA) != 0xAA55) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if MBR is valid */ +#if FF_LBA64 + if (buf[MBR_Table + PTE_System] == 0xEE) { /* GPT protective MBR? */ + DWORD n_ent, ofs; + QWORD pt_lba; + + /* Get the partition location from GPT */ + if (disk_read(pdrv, buf, 1, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Load GPT header sector (next to MBR) */ + if (!test_gpt_header(buf)) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if GPT header is valid */ + n_ent = ld_dword(buf + GPTH_PtNum); /* Number of entries */ + pt_lba = ld_qword(buf + GPTH_PtOfs); /* Table start sector */ + ofs = i = 0; + while (n_ent) { /* Find MS Basic partition with order of ipart */ + if (ofs == 0 && disk_read(pdrv, buf, pt_lba++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Get PT sector */ + if (!mem_cmp(buf + ofs + GPTE_PtGuid, GUID_MS_Basic, 16) && ++i == ipart) { /* MS basic data partition? */ + b_vol = ld_qword(buf + ofs + GPTE_FstLba); + sz_vol = ld_qword(buf + ofs + GPTE_LstLba) - b_vol + 1; + break; + } + n_ent--; ofs = (ofs + SZ_GPTE) % ss; /* Next entry */ + } + if (n_ent == 0) LEAVE_MKFS(FR_MKFS_ABORTED); /* Partition not found */ + fsopt |= 0x80; /* Partitioning is in GPT */ + } else +#endif + { /* Get the partition location from MBR partition table */ + pte = buf + (MBR_Table + (ipart - 1) * SZ_PTE); + if (ipart > 4 || pte[PTE_System] == 0) LEAVE_MKFS(FR_MKFS_ABORTED); /* No partition? */ + b_vol = ld_dword(pte + PTE_StLba); /* Get volume start sector */ + sz_vol = ld_dword(pte + PTE_SizLba); /* Get volume size */ + } + } else { /* The volume is associated with a physical drive */ + if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_vol) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + if (!(fsopt & FM_SFD)) { /* To be partitioned? */ + /* Create a single-partition on the drive in this function */ +#if FF_LBA64 + if (sz_vol >= FF_MIN_GPT) { /* Which partition type to create, MBR or GPT? */ + fsopt |= 0x80; /* Partitioning is in GPT */ + b_vol = GPT_ALIGN / ss; sz_vol -= b_vol + GPT_ITEMS * SZ_GPTE / ss + 1; /* Estimated partition offset and size */ + } else +#endif + { /* Partitioning is in MBR */ + if (sz_vol > N_SEC_TRACK) { + b_vol = N_SEC_TRACK; sz_vol -= b_vol; /* Estimated partition offset and size */ + } + } + } + } + if (sz_vol < 128) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if volume size is >=128s */ + + /* Now start to create a FAT volume at b_vol and sz_vol */ + + do { /* Pre-determine the FAT type */ + if (FF_FS_EXFAT && (fsopt & FM_EXFAT)) { /* exFAT possible? */ + if ((fsopt & FM_ANY) == FM_EXFAT || sz_vol >= 0x4000000 || sz_au > 128) { /* exFAT only, vol >= 64MS or sz_au > 128S ? */ + fsty = FS_EXFAT; break; + } + } +#if FF_LBA64 + if (sz_vol >= 0x100000000) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too large volume for FAT/FAT32 */ +#endif + if (sz_au > 128) sz_au = 128; /* Invalid AU for FAT/FAT32? */ + if (fsopt & FM_FAT32) { /* FAT32 possible? */ + if (!(fsopt & FM_FAT)) { /* no-FAT? */ + fsty = FS_FAT32; break; + } + } + if (!(fsopt & FM_FAT)) LEAVE_MKFS(FR_INVALID_PARAMETER); /* no-FAT? */ + fsty = FS_FAT16; + } while (0); + +#if FF_FS_EXFAT + if (fsty == FS_EXFAT) { /* Create an exFAT volume */ + DWORD szb_bit, szb_case, sum, nb, cl, tbl[3]; + WCHAR ch, si; + UINT j, st; + BYTE b; + + if (sz_vol < 0x1000) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume for exFAT? */ +#if FF_USE_TRIM + lba[0] = b_vol; lba[1] = b_vol + sz_vol - 1; /* Inform storage device that the volume area may be erased */ + disk_ioctl(pdrv, CTRL_TRIM, lba); +#endif + /* Determine FAT location, data location and number of clusters */ + if (sz_au == 0) { /* AU auto-selection */ + sz_au = 8; + if (sz_vol >= 0x80000) sz_au = 64; /* >= 512Ks */ + if (sz_vol >= 0x4000000) sz_au = 256; /* >= 64Ms */ + } + b_fat = b_vol + 32; /* FAT start at offset 32 */ + sz_fat = (DWORD)((sz_vol / sz_au + 2) * 4 + ss - 1) / ss; /* Number of FAT sectors */ + b_data = (b_fat + sz_fat + sz_blk - 1) & ~((LBA_t)sz_blk - 1); /* Align data area to the erase block boundary */ + if (b_data - b_vol >= sz_vol / 2) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */ + n_clst = (DWORD)(sz_vol - (b_data - b_vol)) / sz_au; /* Number of clusters */ + if (n_clst <16) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too few clusters? */ + if (n_clst > MAX_EXFAT) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters? */ + + szb_bit = (n_clst + 7) / 8; /* Size of allocation bitmap */ + tbl[0] = (szb_bit + sz_au * ss - 1) / (sz_au * ss); /* Number of allocation bitmap clusters */ + + /* Create a compressed up-case table */ + sect = b_data + sz_au * tbl[0]; /* Table start sector */ + sum = 0; /* Table checksum to be stored in the 82 entry */ + st = 0; si = 0; i = 0; j = 0; szb_case = 0; + do { + switch (st) { + case 0: + ch = (WCHAR)ff_wtoupper(si); /* Get an up-case char */ + if (ch != si) { + si++; break; /* Store the up-case char if exist */ + } + for (j = 1; (WCHAR)(si + j) && (WCHAR)(si + j) == ff_wtoupper((WCHAR)(si + j)); j++) ; /* Get run length of no-case block */ + if (j >= 128) { + ch = 0xFFFF; st = 2; break; /* Compress the no-case block if run is >= 128 */ + } + st = 1; /* Do not compress short run */ + /* go to next case */ + case 1: + ch = si++; /* Fill the short run */ + if (--j == 0) st = 0; + break; + + default: + ch = (WCHAR)j; si += (WCHAR)j; /* Number of chars to skip */ + st = 0; + } + sum = xsum32(buf[i + 0] = (BYTE)ch, sum); /* Put it into the write buffer */ + sum = xsum32(buf[i + 1] = (BYTE)(ch >> 8), sum); + i += 2; szb_case += 2; + if (si == 0 || i == sz_buf * ss) { /* Write buffered data when buffer full or end of process */ + n = (i + ss - 1) / ss; + if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + sect += n; i = 0; + } + } while (si); + tbl[1] = (szb_case + sz_au * ss - 1) / (sz_au * ss); /* Number of up-case table clusters */ + tbl[2] = 1; /* Number of root dir clusters */ + + /* Initialize the allocation bitmap */ + sect = b_data; nsect = (szb_bit + ss - 1) / ss; /* Start of bitmap and number of sectors */ + nb = tbl[0] + tbl[1] + tbl[2]; /* Number of clusters in-use by system */ + do { + mem_set(buf, 0, sz_buf * ss); + for (i = 0; nb >= 8 && i < sz_buf * ss; buf[i++] = 0xFF, nb -= 8) ; + for (b = 1; nb != 0 && i < sz_buf * ss; buf[i] |= b, b <<= 1, nb--) ; + n = (nsect > sz_buf) ? sz_buf : nsect; /* Write the buffered data */ + if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + sect += n; nsect -= n; + } while (nsect); + + /* Initialize the FAT */ + sect = b_fat; nsect = sz_fat; /* Start of FAT and number of FAT sectors */ + j = nb = cl = 0; + do { + mem_set(buf, 0, sz_buf * ss); i = 0; /* Clear work area and reset write index */ + if (cl == 0) { /* Set FAT [0] and FAT[1] */ + st_dword(buf + i, 0xFFFFFFF8); i += 4; cl++; + st_dword(buf + i, 0xFFFFFFFF); i += 4; cl++; + } + do { /* Create chains of bitmap, up-case and root dir */ + while (nb != 0 && i < sz_buf * ss) { /* Create a chain */ + st_dword(buf + i, (nb > 1) ? cl + 1 : 0xFFFFFFFF); + i += 4; cl++; nb--; + } + if (nb == 0 && j < 3) nb = tbl[j++]; /* Next chain */ + } while (nb != 0 && i < sz_buf * ss); + n = (nsect > sz_buf) ? sz_buf : nsect; /* Write the buffered data */ + if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + sect += n; nsect -= n; + } while (nsect); + + /* Initialize the root directory */ + mem_set(buf, 0, sz_buf * ss); + buf[SZDIRE * 0 + 0] = ET_VLABEL; /* Volume label entry (no label) */ + buf[SZDIRE * 1 + 0] = ET_BITMAP; /* Bitmap entry */ + st_dword(buf + SZDIRE * 1 + 20, 2); /* cluster */ + st_dword(buf + SZDIRE * 1 + 24, szb_bit); /* size */ + buf[SZDIRE * 2 + 0] = ET_UPCASE; /* Up-case table entry */ + st_dword(buf + SZDIRE * 2 + 4, sum); /* sum */ + st_dword(buf + SZDIRE * 2 + 20, 2 + tbl[0]); /* cluster */ + st_dword(buf + SZDIRE * 2 + 24, szb_case); /* size */ + sect = b_data + sz_au * (tbl[0] + tbl[1]); nsect = sz_au; /* Start of the root directory and number of sectors */ + do { /* Fill root directory sectors */ + n = (nsect > sz_buf) ? sz_buf : nsect; + if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + mem_set(buf, 0, ss); + sect += n; nsect -= n; + } while (nsect); + + /* Create two set of the exFAT VBR blocks */ + sect = b_vol; + for (n = 0; n < 2; n++) { + /* Main record (+0) */ + mem_set(buf, 0, ss); + mem_cpy(buf + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11); /* Boot jump code (x86), OEM name */ + st_qword(buf + BPB_VolOfsEx, b_vol); /* Volume offset in the physical drive [sector] */ + st_qword(buf + BPB_TotSecEx, sz_vol); /* Volume size [sector] */ + st_dword(buf + BPB_FatOfsEx, (DWORD)(b_fat - b_vol)); /* FAT offset [sector] */ + st_dword(buf + BPB_FatSzEx, sz_fat); /* FAT size [sector] */ + st_dword(buf + BPB_DataOfsEx, (DWORD)(b_data - b_vol)); /* Data offset [sector] */ + st_dword(buf + BPB_NumClusEx, n_clst); /* Number of clusters */ + st_dword(buf + BPB_RootClusEx, 2 + tbl[0] + tbl[1]); /* Root dir cluster # */ + st_dword(buf + BPB_VolIDEx, GET_FATTIME()); /* VSN */ + st_word(buf + BPB_FSVerEx, 0x100); /* Filesystem version (1.00) */ + for (buf[BPB_BytsPerSecEx] = 0, i = ss; i >>= 1; buf[BPB_BytsPerSecEx]++) ; /* Log2 of sector size [byte] */ + for (buf[BPB_SecPerClusEx] = 0, i = sz_au; i >>= 1; buf[BPB_SecPerClusEx]++) ; /* Log2 of cluster size [sector] */ + buf[BPB_NumFATsEx] = 1; /* Number of FATs */ + buf[BPB_DrvNumEx] = 0x80; /* Drive number (for int13) */ + st_word(buf + BS_BootCodeEx, 0xFEEB); /* Boot code (x86) */ + st_word(buf + BS_55AA, 0xAA55); /* Signature (placed here regardless of sector size) */ + for (i = sum = 0; i < ss; i++) { /* VBR checksum */ + if (i != BPB_VolFlagEx && i != BPB_VolFlagEx + 1 && i != BPB_PercInUseEx) sum = xsum32(buf[i], sum); + } + if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + /* Extended bootstrap record (+1..+8) */ + mem_set(buf, 0, ss); + st_word(buf + ss - 2, 0xAA55); /* Signature (placed at end of sector) */ + for (j = 1; j < 9; j++) { + for (i = 0; i < ss; sum = xsum32(buf[i++], sum)) ; /* VBR checksum */ + if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + } + /* OEM/Reserved record (+9..+10) */ + mem_set(buf, 0, ss); + for ( ; j < 11; j++) { + for (i = 0; i < ss; sum = xsum32(buf[i++], sum)) ; /* VBR checksum */ + if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + } + /* Sum record (+11) */ + for (i = 0; i < ss; i += 4) st_dword(buf + i, sum); /* Fill with checksum value */ + if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + } + + } else +#endif /* FF_FS_EXFAT */ + { /* Create an FAT/FAT32 volume */ + do { + pau = sz_au; + /* Pre-determine number of clusters and FAT sub-type */ + if (fsty == FS_FAT32) { /* FAT32 volume */ + if (pau == 0) { /* AU auto-selection */ + n = (DWORD)sz_vol / 0x20000; /* Volume size in unit of 128KS */ + for (i = 0, pau = 1; cst32[i] && cst32[i] <= n; i++, pau <<= 1) ; /* Get from table */ + } + n_clst = (DWORD)sz_vol / pau; /* Number of clusters */ + sz_fat = (n_clst * 4 + 8 + ss - 1) / ss; /* FAT size [sector] */ + sz_rsv = 32; /* Number of reserved sectors */ + sz_dir = 0; /* No static directory */ + if (n_clst <= MAX_FAT16 || n_clst > MAX_FAT32) LEAVE_MKFS(FR_MKFS_ABORTED); + } else { /* FAT volume */ + if (pau == 0) { /* au auto-selection */ + n = (DWORD)sz_vol / 0x1000; /* Volume size in unit of 4KS */ + for (i = 0, pau = 1; cst[i] && cst[i] <= n; i++, pau <<= 1) ; /* Get from table */ + } + n_clst = (DWORD)sz_vol / pau; + if (n_clst > MAX_FAT12) { + n = n_clst * 2 + 4; /* FAT size [byte] */ + } else { + fsty = FS_FAT12; + n = (n_clst * 3 + 1) / 2 + 3; /* FAT size [byte] */ + } + sz_fat = (n + ss - 1) / ss; /* FAT size [sector] */ + sz_rsv = 1; /* Number of reserved sectors */ + sz_dir = (DWORD)n_root * SZDIRE / ss; /* Root dir size [sector] */ + } + b_fat = b_vol + sz_rsv; /* FAT base */ + b_data = b_fat + sz_fat * n_fat + sz_dir; /* Data base */ + + /* Align data area to erase block boundary (for flash memory media) */ + n = (DWORD)(((b_data + sz_blk - 1) & ~(sz_blk - 1)) - b_data); /* Sectors to next nearest from current data base */ + if (fsty == FS_FAT32) { /* FAT32: Move FAT */ + sz_rsv += n; b_fat += n; + } else { /* FAT: Expand FAT */ + if (n % n_fat) { /* Adjust fractional error if needed */ + n--; sz_rsv++; b_fat++; + } + sz_fat += n / n_fat; + } + + /* Determine number of clusters and final check of validity of the FAT sub-type */ + if (sz_vol < b_data + pau * 16 - b_vol) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */ + n_clst = ((DWORD)sz_vol - sz_rsv - sz_fat * n_fat - sz_dir) / pau; + if (fsty == FS_FAT32) { + if (n_clst <= MAX_FAT16) { /* Too few clusters for FAT32? */ + if (sz_au == 0 && (sz_au = pau / 2) != 0) continue; /* Adjust cluster size and retry */ + LEAVE_MKFS(FR_MKFS_ABORTED); + } + } + if (fsty == FS_FAT16) { + if (n_clst > MAX_FAT16) { /* Too many clusters for FAT16 */ + if (sz_au == 0 && (pau * 2) <= 64) { + sz_au = pau * 2; continue; /* Adjust cluster size and retry */ + } + if ((fsopt & FM_FAT32)) { + fsty = FS_FAT32; continue; /* Switch type to FAT32 and retry */ + } + if (sz_au == 0 && (sz_au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */ + LEAVE_MKFS(FR_MKFS_ABORTED); + } + if (n_clst <= MAX_FAT12) { /* Too few clusters for FAT16 */ + if (sz_au == 0 && (sz_au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */ + LEAVE_MKFS(FR_MKFS_ABORTED); + } + } + if (fsty == FS_FAT12 && n_clst > MAX_FAT12) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters for FAT12 */ + + /* Ok, it is the valid cluster configuration */ + break; + } while (1); + +#if FF_USE_TRIM + lba[0] = b_vol; lba[1] = b_vol + sz_vol - 1; /* Inform storage device that the volume area may be erased */ + disk_ioctl(pdrv, CTRL_TRIM, lba); +#endif + /* Create FAT VBR */ + mem_set(buf, 0, ss); + mem_cpy(buf + BS_JmpBoot, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code (x86), OEM name */ + st_word(buf + BPB_BytsPerSec, ss); /* Sector size [byte] */ + buf[BPB_SecPerClus] = (BYTE)pau; /* Cluster size [sector] */ + st_word(buf + BPB_RsvdSecCnt, (WORD)sz_rsv); /* Size of reserved area */ + buf[BPB_NumFATs] = (BYTE)n_fat; /* Number of FATs */ + st_word(buf + BPB_RootEntCnt, (WORD)((fsty == FS_FAT32) ? 0 : n_root)); /* Number of root directory entries */ + if (sz_vol < 0x10000) { + st_word(buf + BPB_TotSec16, (WORD)sz_vol); /* Volume size in 16-bit LBA */ + } else { + st_dword(buf + BPB_TotSec32, (DWORD)sz_vol); /* Volume size in 32-bit LBA */ + } + buf[BPB_Media] = 0xF8; /* Media descriptor byte */ + st_word(buf + BPB_SecPerTrk, 63); /* Number of sectors per track (for int13) */ + st_word(buf + BPB_NumHeads, 255); /* Number of heads (for int13) */ + st_dword(buf + BPB_HiddSec, (DWORD)b_vol); /* Volume offset in the physical drive [sector] */ + if (fsty == FS_FAT32) { + st_dword(buf + BS_VolID32, GET_FATTIME()); /* VSN */ + st_dword(buf + BPB_FATSz32, sz_fat); /* FAT size [sector] */ + st_dword(buf + BPB_RootClus32, 2); /* Root directory cluster # (2) */ + st_word(buf + BPB_FSInfo32, 1); /* Offset of FSINFO sector (VBR + 1) */ + st_word(buf + BPB_BkBootSec32, 6); /* Offset of backup VBR (VBR + 6) */ + buf[BS_DrvNum32] = 0x80; /* Drive number (for int13) */ + buf[BS_BootSig32] = 0x29; /* Extended boot signature */ + mem_cpy(buf + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */ + } else { + st_dword(buf + BS_VolID, GET_FATTIME()); /* VSN */ + st_word(buf + BPB_FATSz16, (WORD)sz_fat); /* FAT size [sector] */ + buf[BS_DrvNum] = 0x80; /* Drive number (for int13) */ + buf[BS_BootSig] = 0x29; /* Extended boot signature */ + mem_cpy(buf + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */ + } + st_word(buf + BS_55AA, 0xAA55); /* Signature (offset is fixed here regardless of sector size) */ + if (disk_write(pdrv, buf, b_vol, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it to the VBR sector */ + + /* Create FSINFO record if needed */ + if (fsty == FS_FAT32) { + disk_write(pdrv, buf, b_vol + 6, 1); /* Write backup VBR (VBR + 6) */ + mem_set(buf, 0, ss); + st_dword(buf + FSI_LeadSig, 0x41615252); + st_dword(buf + FSI_StrucSig, 0x61417272); + st_dword(buf + FSI_Free_Count, n_clst - 1); /* Number of free clusters */ + st_dword(buf + FSI_Nxt_Free, 2); /* Last allocated cluster# */ + st_word(buf + BS_55AA, 0xAA55); + disk_write(pdrv, buf, b_vol + 7, 1); /* Write backup FSINFO (VBR + 7) */ + disk_write(pdrv, buf, b_vol + 1, 1); /* Write original FSINFO (VBR + 1) */ + } + + /* Initialize FAT area */ + mem_set(buf, 0, sz_buf * ss); + sect = b_fat; /* FAT start sector */ + for (i = 0; i < n_fat; i++) { /* Initialize FATs each */ + if (fsty == FS_FAT32) { + st_dword(buf + 0, 0xFFFFFFF8); /* FAT[0] */ + st_dword(buf + 4, 0xFFFFFFFF); /* FAT[1] */ + st_dword(buf + 8, 0x0FFFFFFF); /* FAT[2] (root directory) */ + } else { + st_dword(buf + 0, (fsty == FS_FAT12) ? 0xFFFFF8 : 0xFFFFFFF8); /* FAT[0] and FAT[1] */ + } + nsect = sz_fat; /* Number of FAT sectors */ + do { /* Fill FAT sectors */ + n = (nsect > sz_buf) ? sz_buf : nsect; + if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + mem_set(buf, 0, ss); /* Rest of FAT all are cleared */ + sect += n; nsect -= n; + } while (nsect); + } + + /* Initialize root directory (fill with zero) */ + nsect = (fsty == FS_FAT32) ? pau : sz_dir; /* Number of root directory sectors */ + do { + n = (nsect > sz_buf) ? sz_buf : nsect; + if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + sect += n; nsect -= n; + } while (nsect); + } + + /* A FAT volume has been created here */ + + /* Determine system ID in the MBR partition table */ + if (FF_FS_EXFAT && fsty == FS_EXFAT) { + sys = 0x07; /* exFAT */ + } else { + if (fsty == FS_FAT32) { + sys = 0x0C; /* FAT32X */ + } else { + if (sz_vol >= 0x10000) { + sys = 0x06; /* FAT12/16 (large) */ + } else { + sys = (fsty == FS_FAT16) ? 0x04 : 0x01; /* FAT16 : FAT12 */ + } + } + } + + /* Update partition information */ + if (FF_MULTI_PARTITION && ipart != 0) { /* Volume is in the existing partition */ + if (!FF_LBA64 || !(fsopt & 0x80)) { + /* Update system ID in the partition table */ + if (disk_read(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Read the MBR */ + buf[MBR_Table + (ipart - 1) * SZ_PTE + PTE_System] = sys; /* Set system ID */ + if (disk_write(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it back to the MBR */ + } + } else { /* Volume as a new single partition */ + if (!(fsopt & FM_SFD)) { /* Create partition table if not in SFD */ + lba[0] = sz_vol, lba[1] = 0; + fr = create_partition(pdrv, lba, sys, buf); + if (fr != FR_OK) LEAVE_MKFS(fr); + } + } + + if (disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); + + LEAVE_MKFS(FR_OK); +} + + + + +#if FF_MULTI_PARTITION +/*-----------------------------------------------------------------------*/ +/* Create Partition Table on the Physical Drive */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_fdisk ( + BYTE pdrv, /* Physical drive number */ + const LBA_t ptbl[], /* Pointer to the size table for each partitions */ + void* work /* Pointer to the working buffer (null: use heap memory) */ +) +{ + BYTE *buf = (BYTE*)work; + DSTATUS stat; + + + stat = disk_initialize(pdrv); + if (stat & STA_NOINIT) return FR_NOT_READY; + if (stat & STA_PROTECT) return FR_WRITE_PROTECTED; +#if FF_USE_LFN == 3 + if (!buf) buf = ff_memalloc(FF_MAX_SS); /* Use heap memory for working buffer */ +#endif + if (!buf) return FR_NOT_ENOUGH_CORE; + + LEAVE_MKFS(create_partition(pdrv, ptbl, 0x07, buf)); +} + +#endif /* FF_MULTI_PARTITION */ +#endif /* !FF_FS_READONLY && FF_USE_MKFS */ + + + + +#if FF_USE_STRFUNC +#if FF_USE_LFN && FF_LFN_UNICODE && (FF_STRF_ENCODE < 0 || FF_STRF_ENCODE > 3) +#error Wrong FF_STRF_ENCODE setting +#endif +/*-----------------------------------------------------------------------*/ +/* Get a String from the File */ +/*-----------------------------------------------------------------------*/ + +TCHAR* f_gets ( + TCHAR* buff, /* Pointer to the buffer to store read string */ + int len, /* Size of string buffer (items) */ + FIL* fp /* Pointer to the file object */ +) +{ + int nc = 0; + TCHAR *p = buff; + BYTE s[4]; + UINT rc; + DWORD dc; +#if FF_USE_LFN && FF_LFN_UNICODE && FF_STRF_ENCODE <= 2 + WCHAR wc; +#endif +#if FF_USE_LFN && FF_LFN_UNICODE && FF_STRF_ENCODE == 3 + UINT ct; +#endif + +#if FF_USE_LFN && FF_LFN_UNICODE /* With code conversion (Unicode API) */ + /* Make a room for the character and terminator */ + if (FF_LFN_UNICODE == 1) len -= (FF_STRF_ENCODE == 0) ? 1 : 2; + if (FF_LFN_UNICODE == 2) len -= (FF_STRF_ENCODE == 0) ? 3 : 4; + if (FF_LFN_UNICODE == 3) len -= 1; + while (nc < len) { +#if FF_STRF_ENCODE == 0 /* Read a character in ANSI/OEM */ + f_read(fp, s, 1, &rc); /* Get a code unit */ + if (rc != 1) break; /* EOF? */ + wc = s[0]; + if (dbc_1st((BYTE)wc)) { /* DBC 1st byte? */ + f_read(fp, s, 1, &rc); /* Get DBC 2nd byte */ + if (rc != 1 || !dbc_2nd(s[0])) continue; /* Wrong code? */ + wc = wc << 8 | s[0]; + } + dc = ff_oem2uni(wc, CODEPAGE); /* OEM --> */ + if (dc == 0) continue; +#elif FF_STRF_ENCODE == 1 || FF_STRF_ENCODE == 2 /* Read a character in UTF-16LE/BE */ + f_read(fp, s, 2, &rc); /* Get a code unit */ + if (rc != 2) break; /* EOF? */ + dc = (FF_STRF_ENCODE == 1) ? ld_word(s) : s[0] << 8 | s[1]; + if (IsSurrogateL(dc)) continue; /* Broken surrogate pair? */ + if (IsSurrogateH(dc)) { /* High surrogate? */ + f_read(fp, s, 2, &rc); /* Get low surrogate */ + if (rc != 2) break; /* EOF? */ + wc = (FF_STRF_ENCODE == 1) ? ld_word(s) : s[0] << 8 | s[1]; + if (!IsSurrogateL(wc)) continue; /* Broken surrogate pair? */ + dc = ((dc & 0x3FF) + 0x40) << 10 | (wc & 0x3FF); /* Merge surrogate pair */ + } +#else /* Read a character in UTF-8 */ + f_read(fp, s, 1, &rc); /* Get a code unit */ + if (rc != 1) break; /* EOF? */ + dc = s[0]; + if (dc >= 0x80) { /* Multi-byte sequence? */ + ct = 0; + if ((dc & 0xE0) == 0xC0) { dc &= 0x1F; ct = 1; } /* 2-byte sequence? */ + if ((dc & 0xF0) == 0xE0) { dc &= 0x0F; ct = 2; } /* 3-byte sequence? */ + if ((dc & 0xF8) == 0xF0) { dc &= 0x07; ct = 3; } /* 4-byte sequence? */ + if (ct == 0) continue; + f_read(fp, s, ct, &rc); /* Get trailing bytes */ + if (rc != ct) break; + rc = 0; + do { /* Merge the byte sequence */ + if ((s[rc] & 0xC0) != 0x80) break; + dc = dc << 6 | (s[rc] & 0x3F); + } while (++rc < ct); + if (rc != ct || dc < 0x80 || IsSurrogate(dc) || dc >= 0x110000) continue; /* Wrong encoding? */ + } +#endif + /* A code point is avaialble in dc to be output */ + + if (FF_USE_STRFUNC == 2 && dc == '\r') continue; /* Strip \r off if needed */ +#if FF_LFN_UNICODE == 1 || FF_LFN_UNICODE == 3 /* Output it in UTF-16/32 encoding */ + if (FF_LFN_UNICODE == 1 && dc >= 0x10000) { /* Out of BMP at UTF-16? */ + *p++ = (TCHAR)(0xD800 | ((dc >> 10) - 0x40)); nc++; /* Make and output high surrogate */ + dc = 0xDC00 | (dc & 0x3FF); /* Make low surrogate */ + } + *p++ = (TCHAR)dc; nc++; + if (dc == '\n') break; /* End of line? */ +#elif FF_LFN_UNICODE == 2 /* Output it in UTF-8 encoding */ + if (dc < 0x80) { /* Single byte? */ + *p++ = (TCHAR)dc; + nc++; + if (dc == '\n') break; /* End of line? */ + } else { + if (dc < 0x800) { /* 2-byte sequence? */ + *p++ = (TCHAR)(0xC0 | (dc >> 6 & 0x1F)); + *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F)); + nc += 2; + } else { + if (dc < 0x10000) { /* 3-byte sequence? */ + *p++ = (TCHAR)(0xE0 | (dc >> 12 & 0x0F)); + *p++ = (TCHAR)(0x80 | (dc >> 6 & 0x3F)); + *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F)); + nc += 3; + } else { /* 4-byte sequence? */ + *p++ = (TCHAR)(0xF0 | (dc >> 18 & 0x07)); + *p++ = (TCHAR)(0x80 | (dc >> 12 & 0x3F)); + *p++ = (TCHAR)(0x80 | (dc >> 6 & 0x3F)); + *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F)); + nc += 4; + } + } + } +#endif + } + +#else /* Byte-by-byte read without any conversion (ANSI/OEM API) */ + len -= 1; /* Make a room for the terminator */ + while (nc < len) { + f_read(fp, s, 1, &rc); /* Get a byte */ + if (rc != 1) break; /* EOF? */ + dc = s[0]; + if (FF_USE_STRFUNC == 2 && dc == '\r') continue; + *p++ = (TCHAR)dc; nc++; + if (dc == '\n') break; + } +#endif + + *p = 0; /* Terminate the string */ + return nc ? buff : 0; /* When no data read due to EOF or error, return with error. */ +} + + + + +#if !FF_FS_READONLY +#include +/*-----------------------------------------------------------------------*/ +/* Put a Character to the File (sub-functions) */ +/*-----------------------------------------------------------------------*/ + +/* Putchar output buffer and work area */ + +typedef struct { + FIL *fp; /* Ptr to the writing file */ + int idx, nchr; /* Write index of buf[] (-1:error), number of encoding units written */ +#if FF_USE_LFN && FF_LFN_UNICODE == 1 + WCHAR hs; +#elif FF_USE_LFN && FF_LFN_UNICODE == 2 + BYTE bs[4]; + UINT wi, ct; +#endif + BYTE buf[64]; /* Write buffer */ +} putbuff; + + +/* Buffered write with code conversion */ + +static void putc_bfd (putbuff* pb, TCHAR c) +{ + UINT n; + int i, nc; +#if FF_USE_LFN && FF_LFN_UNICODE + WCHAR hs, wc; +#if FF_LFN_UNICODE == 2 + DWORD dc; + const TCHAR *tp; +#endif +#endif + + if (FF_USE_STRFUNC == 2 && c == '\n') { /* LF -> CRLF conversion */ + putc_bfd(pb, '\r'); + } + + i = pb->idx; /* Write index of pb->buf[] */ + if (i < 0) return; + nc = pb->nchr; /* Write unit counter */ + +#if FF_USE_LFN && FF_LFN_UNICODE +#if FF_LFN_UNICODE == 1 /* UTF-16 input */ + if (IsSurrogateH(c)) { /* High surrogate? */ + pb->hs = c; return; /* Save it for next */ + } + hs = pb->hs; pb->hs = 0; + if (hs != 0) { /* There is a leading high surrogate */ + if (!IsSurrogateL(c)) hs = 0; /* Discard high surrogate if not a surrogate pair */ + } else { + if (IsSurrogateL(c)) return; /* Discard stray low surrogate */ + } + wc = c; +#elif FF_LFN_UNICODE == 2 /* UTF-8 input */ + for (;;) { + if (pb->ct == 0) { /* Out of multi-byte sequence? */ + pb->bs[pb->wi = 0] = (BYTE)c; /* Save 1st byte */ + if ((BYTE)c < 0x80) break; /* Single byte? */ + if (((BYTE)c & 0xE0) == 0xC0) pb->ct = 1; /* 2-byte sequence? */ + if (((BYTE)c & 0xF0) == 0xE0) pb->ct = 2; /* 3-byte sequence? */ + if (((BYTE)c & 0xF1) == 0xF0) pb->ct = 3; /* 4-byte sequence? */ + return; + } else { /* In the multi-byte sequence */ + if (((BYTE)c & 0xC0) != 0x80) { /* Broken sequence? */ + pb->ct = 0; continue; + } + pb->bs[++pb->wi] = (BYTE)c; /* Save the trailing byte */ + if (--pb->ct == 0) break; /* End of multi-byte sequence? */ + return; + } + } + tp = (const TCHAR*)pb->bs; + dc = tchar2uni(&tp); /* UTF-8 ==> UTF-16 */ + if (dc == 0xFFFFFFFF) return; /* Wrong code? */ + wc = (WCHAR)dc; + hs = (WCHAR)(dc >> 16); +#elif FF_LFN_UNICODE == 3 /* UTF-32 input */ + if (IsSurrogate(c) || c >= 0x110000) return; /* Discard invalid code */ + if (c >= 0x10000) { /* Out of BMP? */ + hs = (WCHAR)(0xD800 | ((c >> 10) - 0x40)); /* Make high surrogate */ + wc = 0xDC00 | (c & 0x3FF); /* Make low surrogate */ + } else { + hs = 0; + wc = (WCHAR)c; + } +#endif + /* A code point in UTF-16 is available in hs and wc */ + +#if FF_STRF_ENCODE == 1 /* Write a code point in UTF-16LE */ + if (hs != 0) { /* Surrogate pair? */ + st_word(&pb->buf[i], hs); + i += 2; + nc++; + } + st_word(&pb->buf[i], wc); + i += 2; +#elif FF_STRF_ENCODE == 2 /* Write a code point in UTF-16BE */ + if (hs != 0) { /* Surrogate pair? */ + pb->buf[i++] = (BYTE)(hs >> 8); + pb->buf[i++] = (BYTE)hs; + nc++; + } + pb->buf[i++] = (BYTE)(wc >> 8); + pb->buf[i++] = (BYTE)wc; +#elif FF_STRF_ENCODE == 3 /* Write a code point in UTF-8 */ + if (hs != 0) { /* 4-byte sequence? */ + nc += 3; + hs = (hs & 0x3FF) + 0x40; + pb->buf[i++] = (BYTE)(0xF0 | hs >> 8); + pb->buf[i++] = (BYTE)(0x80 | (hs >> 2 & 0x3F)); + pb->buf[i++] = (BYTE)(0x80 | (hs & 3) << 4 | (wc >> 6 & 0x0F)); + pb->buf[i++] = (BYTE)(0x80 | (wc & 0x3F)); + } else { + if (wc < 0x80) { /* Single byte? */ + pb->buf[i++] = (BYTE)wc; + } else { + if (wc < 0x800) { /* 2-byte sequence? */ + nc += 1; + pb->buf[i++] = (BYTE)(0xC0 | wc >> 6); + } else { /* 3-byte sequence */ + nc += 2; + pb->buf[i++] = (BYTE)(0xE0 | wc >> 12); + pb->buf[i++] = (BYTE)(0x80 | (wc >> 6 & 0x3F)); + } + pb->buf[i++] = (BYTE)(0x80 | (wc & 0x3F)); + } + } +#else /* Write a code point in ANSI/OEM */ + if (hs != 0) return; + wc = ff_uni2oem(wc, CODEPAGE); /* UTF-16 ==> ANSI/OEM */ + if (wc == 0) return; + if (wc >= 0x100) { + pb->buf[i++] = (BYTE)(wc >> 8); nc++; + } + pb->buf[i++] = (BYTE)wc; +#endif + +#else /* ANSI/OEM input (without re-encoding) */ + pb->buf[i++] = (BYTE)c; +#endif + + if (i >= (int)(sizeof pb->buf) - 4) { /* Write buffered characters to the file */ + f_write(pb->fp, pb->buf, (UINT)i, &n); + i = (n == (UINT)i) ? 0 : -1; + } + pb->idx = i; + pb->nchr = nc + 1; +} + + +/* Flush remaining characters in the buffer */ + +static int putc_flush (putbuff* pb) +{ + UINT nw; + + if ( pb->idx >= 0 /* Flush buffered characters to the file */ + && f_write(pb->fp, pb->buf, (UINT)pb->idx, &nw) == FR_OK + && (UINT)pb->idx == nw) return pb->nchr; + return EOF; +} + + +/* Initialize write buffer */ + +static void putc_init (putbuff* pb, FIL* fp) +{ + mem_set(pb, 0, sizeof (putbuff)); + pb->fp = fp; +} + + + +int f_putc ( + TCHAR c, /* A character to be output */ + FIL* fp /* Pointer to the file object */ +) +{ + putbuff pb; + + + putc_init(&pb, fp); + putc_bfd(&pb, c); /* Put the character */ + return putc_flush(&pb); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Put a String to the File */ +/*-----------------------------------------------------------------------*/ + +int f_puts ( + const TCHAR* str, /* Pointer to the string to be output */ + FIL* fp /* Pointer to the file object */ +) +{ + putbuff pb; + + + putc_init(&pb, fp); + while (*str) putc_bfd(&pb, *str++); /* Put the string */ + return putc_flush(&pb); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Put a Formatted String to the File */ +/*-----------------------------------------------------------------------*/ + +int f_printf ( + FIL* fp, /* Pointer to the file object */ + const TCHAR* fmt, /* Pointer to the format string */ + ... /* Optional arguments... */ +) +{ + va_list arp; + putbuff pb; + BYTE f, r; + UINT i, j, w; + DWORD v; + TCHAR c, d, str[32], *p; + + + putc_init(&pb, fp); + + va_start(arp, fmt); + + for (;;) { + c = *fmt++; + if (c == 0) break; /* End of string */ + if (c != '%') { /* Non escape character */ + putc_bfd(&pb, c); + continue; + } + w = f = 0; + c = *fmt++; + if (c == '0') { /* Flag: '0' padding */ + f = 1; c = *fmt++; + } else { + if (c == '-') { /* Flag: left justified */ + f = 2; c = *fmt++; + } + } + if (c == '*') { /* Minimum width by argument */ + w = va_arg(arp, int); + c = *fmt++; + } else { + while (IsDigit(c)) { /* Minimum width */ + w = w * 10 + c - '0'; + c = *fmt++; + } + } + if (c == 'l' || c == 'L') { /* Type prefix: Size is long int */ + f |= 4; c = *fmt++; + } + if (c == 0) break; + d = c; + if (IsLower(d)) d -= 0x20; + switch (d) { /* Atgument type is... */ + case 'S' : /* String */ + p = va_arg(arp, TCHAR*); + for (j = 0; p[j]; j++) ; + if (!(f & 2)) { /* Right padded */ + while (j++ < w) putc_bfd(&pb, ' ') ; + } + while (*p) putc_bfd(&pb, *p++) ; /* String body */ + while (j++ < w) putc_bfd(&pb, ' ') ; /* Left padded */ + continue; + + case 'C' : /* Character */ + putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue; + + case 'B' : /* Unsigned binary */ + r = 2; break; + + case 'O' : /* Unsigned octal */ + r = 8; break; + + case 'D' : /* Signed decimal */ + case 'U' : /* Unsigned decimal */ + r = 10; break; + + case 'X' : /* Unsigned hexdecimal */ + r = 16; break; + + default: /* Unknown type (pass-through) */ + putc_bfd(&pb, c); continue; + } + + /* Get an argument and put it in numeral */ + v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int)); + if (d == 'D' && (v & 0x80000000)) { + v = 0 - v; + f |= 8; + } + i = 0; + do { + d = (TCHAR)(v % r); v /= r; + if (d > 9) d += (c == 'x') ? 0x27 : 0x07; + str[i++] = d + '0'; + } while (v && i < sizeof str / sizeof *str); + if (f & 8) str[i++] = '-'; + j = i; d = (f & 1) ? '0' : ' '; + if (!(f & 2)) { + while (j++ < w) putc_bfd(&pb, d); /* Right pad */ + } + do { + putc_bfd(&pb, str[--i]); /* Number body */ + } while (i); + while (j++ < w) putc_bfd(&pb, d); /* Left pad */ + } + + va_end(arp); + + return putc_flush(&pb); +} + +#endif /* !FF_FS_READONLY */ +#endif /* FF_USE_STRFUNC */ + + + +#if FF_CODE_PAGE == 0 +/*-----------------------------------------------------------------------*/ +/* Set Active Codepage for the Path Name */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_setcp ( + WORD cp /* Value to be set as active code page */ +) +{ + static const WORD validcp[] = { 437, 720, 737, 771, 775, 850, 852, 857, 860, 861, 862, 863, 864, 865, 866, 869, 932, 936, 949, 950, 0}; + static const BYTE* const tables[] = {Ct437, Ct720, Ct737, Ct771, Ct775, Ct850, Ct852, Ct857, Ct860, Ct861, Ct862, Ct863, Ct864, Ct865, Ct866, Ct869, Dc932, Dc936, Dc949, Dc950, 0}; + UINT i; + + + for (i = 0; validcp[i] != 0 && validcp[i] != cp; i++) ; /* Find the code page */ + if (validcp[i] != cp) return FR_INVALID_PARAMETER; /* Not found? */ + + CodePage = cp; + if (cp >= 900) { /* DBCS */ + ExCvt = 0; + DbcTbl = tables[i]; + } else { /* SBCS */ + ExCvt = tables[i]; + DbcTbl = 0; + } + return FR_OK; +} +#endif /* FF_CODE_PAGE == 0 */ + diff --git a/middleware/fatfs/source/ff.h b/middleware/fatfs/source/ff.h new file mode 100644 index 0000000..5225041 --- /dev/null +++ b/middleware/fatfs/source/ff.h @@ -0,0 +1,426 @@ +/*----------------------------------------------------------------------------/ +/ FatFs - Generic FAT Filesystem module R0.14 / +/-----------------------------------------------------------------------------/ +/ +/ Copyright (C) 2019, ChaN, all right reserved. +/ +/ FatFs module is an open source software. Redistribution and use of FatFs in +/ source and binary forms, with or without modification, are permitted provided +/ that the following condition is met: + +/ 1. Redistributions of source code must retain the above copyright notice, +/ this condition and the following disclaimer. +/ +/ This software is provided by the copyright holder and contributors "AS IS" +/ and any warranties related to this software are DISCLAIMED. +/ The copyright owner or contributors be NOT LIABLE for any damages caused +/ by use of this software. +/ +/----------------------------------------------------------------------------*/ + + +#ifndef FF_DEFINED +#define FF_DEFINED 86606 /* Revision ID */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "ffconf.h" /* FatFs configuration options */ + +#if FF_DEFINED != FFCONF_DEF +#error Wrong configuration file (ffconf.h). +#endif + + +/* Integer types used for FatFs API */ + +#if defined(_WIN32) /* Main development platform */ +#define FF_INTDEF 2 +#include +typedef unsigned __int64 QWORD; +#elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__cplusplus) /* C99 or later */ +#define FF_INTDEF 2 +#include +typedef unsigned int UINT; /* int must be 16-bit or 32-bit */ +typedef unsigned char BYTE; /* char must be 8-bit */ +typedef uint16_t WORD; /* 16-bit unsigned integer */ +typedef uint32_t DWORD; /* 32-bit unsigned integer */ +typedef uint64_t QWORD; /* 64-bit unsigned integer */ +typedef WORD WCHAR; /* UTF-16 character type */ +#else /* Earlier than C99 */ +#define FF_INTDEF 1 +typedef unsigned int UINT; /* int must be 16-bit or 32-bit */ +typedef unsigned char BYTE; /* char must be 8-bit */ +typedef unsigned short WORD; /* 16-bit unsigned integer */ +typedef unsigned long DWORD; /* 32-bit unsigned integer */ +typedef WORD WCHAR; /* UTF-16 character type */ +#endif + + +/* Definitions of volume management */ + +#if FF_MULTI_PARTITION /* Multiple partition configuration */ +typedef struct { + BYTE pd; /* Physical drive number */ + BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */ +} PARTITION; +extern PARTITION VolToPart[]; /* Volume - Partition mapping table */ +#endif + +#if FF_STR_VOLUME_ID +#ifndef FF_VOLUME_STRS +extern const char* VolumeStr[FF_VOLUMES]; /* User defied volume ID */ +#endif +#endif + + + +/* Type of path name strings on FatFs API */ + +#ifndef _INC_TCHAR +#define _INC_TCHAR + +#if FF_USE_LFN && FF_LFN_UNICODE == 1 /* Unicode in UTF-16 encoding */ +typedef WCHAR TCHAR; +#define _T(x) L ## x +#define _TEXT(x) L ## x +#elif FF_USE_LFN && FF_LFN_UNICODE == 2 /* Unicode in UTF-8 encoding */ +typedef char TCHAR; +#define _T(x) u8 ## x +#define _TEXT(x) u8 ## x +#elif FF_USE_LFN && FF_LFN_UNICODE == 3 /* Unicode in UTF-32 encoding */ +typedef DWORD TCHAR; +#define _T(x) U ## x +#define _TEXT(x) U ## x +#elif FF_USE_LFN && (FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 3) +#error Wrong FF_LFN_UNICODE setting +#else /* ANSI/OEM code in SBCS/DBCS */ +typedef char TCHAR; +#define _T(x) x +#define _TEXT(x) x +#endif + +#endif + + + +/* Type of file size and LBA variables */ + +#if FF_FS_EXFAT +#if FF_INTDEF != 2 +#error exFAT feature wants C99 or later +#endif +typedef QWORD FSIZE_t; +#if FF_LBA64 +typedef QWORD LBA_t; +#else +typedef DWORD LBA_t; +#endif +#else +#if FF_LBA64 +#error exFAT needs to be enabled when enable 64-bit LBA +#endif +typedef DWORD FSIZE_t; +typedef DWORD LBA_t; +#endif + + + +/* Filesystem object structure (FATFS) */ + +typedef struct { + BYTE fs_type; /* Filesystem type (0:not mounted) */ + BYTE pdrv; /* Associated physical drive */ + BYTE n_fats; /* Number of FATs (1 or 2) */ + BYTE wflag; /* win[] flag (b0:dirty) */ + BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */ + WORD id; /* Volume mount ID */ + WORD n_rootdir; /* Number of root directory entries (FAT12/16) */ + WORD csize; /* Cluster size [sectors] */ +#if FF_MAX_SS != FF_MIN_SS + WORD ssize; /* Sector size (512, 1024, 2048 or 4096) */ +#endif +#if FF_USE_LFN + WCHAR* lfnbuf; /* LFN working buffer */ +#endif +#if FF_FS_EXFAT + BYTE* dirbuf; /* Directory entry block scratchpad buffer for exFAT */ +#endif +#if FF_FS_REENTRANT + FF_SYNC_t sobj; /* Identifier of sync object */ +#endif +#if !FF_FS_READONLY + DWORD last_clst; /* Last allocated cluster */ + DWORD free_clst; /* Number of free clusters */ +#endif +#if FF_FS_RPATH + DWORD cdir; /* Current directory start cluster (0:root) */ +#if FF_FS_EXFAT + DWORD cdc_scl; /* Containing directory start cluster (invalid when cdir is 0) */ + DWORD cdc_size; /* b31-b8:Size of containing directory, b7-b0: Chain status */ + DWORD cdc_ofs; /* Offset in the containing directory (invalid when cdir is 0) */ +#endif +#endif + DWORD n_fatent; /* Number of FAT entries (number of clusters + 2) */ + DWORD fsize; /* Size of an FAT [sectors] */ + LBA_t volbase; /* Volume base sector */ + LBA_t fatbase; /* FAT base sector */ + LBA_t dirbase; /* Root directory base sector/cluster */ + LBA_t database; /* Data base sector */ +#if FF_FS_EXFAT + LBA_t bitbase; /* Allocation bitmap base sector */ +#endif + LBA_t winsect; /* Current sector appearing in the win[] */ + BYTE win[FF_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */ +} FATFS; + + + +/* Object ID and allocation information (FFOBJID) */ + +typedef struct { + FATFS* fs; /* Pointer to the hosting volume of this object */ + WORD id; /* Hosting volume mount ID */ + BYTE attr; /* Object attribute */ + BYTE stat; /* Object chain status (b1-0: =0:not contiguous, =2:contiguous, =3:fragmented in this session, b2:sub-directory stretched) */ + DWORD sclust; /* Object data start cluster (0:no cluster or root directory) */ + FSIZE_t objsize; /* Object size (valid when sclust != 0) */ +#if FF_FS_EXFAT + DWORD n_cont; /* Size of first fragment - 1 (valid when stat == 3) */ + DWORD n_frag; /* Size of last fragment needs to be written to FAT (valid when not zero) */ + DWORD c_scl; /* Containing directory start cluster (valid when sclust != 0) */ + DWORD c_size; /* b31-b8:Size of containing directory, b7-b0: Chain status (valid when c_scl != 0) */ + DWORD c_ofs; /* Offset in the containing directory (valid when file object and sclust != 0) */ +#endif +#if FF_FS_LOCK + UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */ +#endif +} FFOBJID; + + + +/* File object structure (FIL) */ + +typedef struct { + FFOBJID obj; /* Object identifier (must be the 1st member to detect invalid object pointer) */ + BYTE flag; /* File status flags */ + BYTE err; /* Abort flag (error code) */ + FSIZE_t fptr; /* File read/write pointer (Zeroed on file open) */ + DWORD clust; /* Current cluster of fpter (invalid when fptr is 0) */ + LBA_t sect; /* Sector number appearing in buf[] (0:invalid) */ +#if !FF_FS_READONLY + LBA_t dir_sect; /* Sector number containing the directory entry (not used at exFAT) */ + BYTE* dir_ptr; /* Pointer to the directory entry in the win[] (not used at exFAT) */ +#endif +#if FF_USE_FASTSEEK + DWORD* cltbl; /* Pointer to the cluster link map table (nulled on open, set by application) */ +#endif +#if !FF_FS_TINY + BYTE buf[FF_MAX_SS]; /* File private data read/write window */ +#endif +} FIL; + + + +/* Directory object structure (DIR) */ + +typedef struct { + FFOBJID obj; /* Object identifier */ + DWORD dptr; /* Current read/write offset */ + DWORD clust; /* Current cluster */ + LBA_t sect; /* Current sector (0:Read operation has terminated) */ + BYTE* dir; /* Pointer to the directory item in the win[] */ + BYTE fn[12]; /* SFN (in/out) {body[8],ext[3],status[1]} */ +#if FF_USE_LFN + DWORD blk_ofs; /* Offset of current entry block being processed (0xFFFFFFFF:Invalid) */ +#endif +#if FF_USE_FIND + const TCHAR* pat; /* Pointer to the name matching pattern */ +#endif +} DIR; + + + +/* File information structure (FILINFO) */ + +typedef struct { + FSIZE_t fsize; /* File size */ + WORD fdate; /* Modified date */ + WORD ftime; /* Modified time */ + BYTE fattrib; /* File attribute */ +#if FF_USE_LFN + TCHAR altname[FF_SFN_BUF + 1];/* Altenative file name */ + TCHAR fname[FF_LFN_BUF + 1]; /* Primary file name */ +#else + TCHAR fname[12 + 1]; /* File name */ +#endif +} FILINFO; + + + +/* Format parameter structure (MKFS_PARM) */ + +typedef struct { + BYTE fmt; /* Format option (FM_FAT, FM_FAT32, FM_EXFAT and FM_SFD) */ + BYTE n_fat; /* Number of FATs */ + UINT align; /* Data area alignment (sector) */ + UINT n_root; /* Number of root directory entries */ + DWORD au_size; /* Cluster size (byte) */ +} MKFS_PARM; + + + +/* File function return code (FRESULT) */ + +typedef enum { + FR_OK = 0, /* (0) Succeeded */ + FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */ + FR_INT_ERR, /* (2) Assertion failed */ + FR_NOT_READY, /* (3) The physical drive cannot work */ + FR_NO_FILE, /* (4) Could not find the file */ + FR_NO_PATH, /* (5) Could not find the path */ + FR_INVALID_NAME, /* (6) The path name format is invalid */ + FR_DENIED, /* (7) Access denied due to prohibited access or directory full */ + FR_EXIST, /* (8) Access denied due to prohibited access */ + FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */ + FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */ + FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */ + FR_NOT_ENABLED, /* (12) The volume has no work area */ + FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */ + FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any problem */ + FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */ + FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */ + FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */ + FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > FF_FS_LOCK */ + FR_INVALID_PARAMETER /* (19) Given parameter is invalid */ +} FRESULT; + + + +/*--------------------------------------------------------------*/ +/* FatFs module application interface */ + +FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */ +FRESULT f_close (FIL* fp); /* Close an open file object */ +FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from the file */ +FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to the file */ +FRESULT f_lseek (FIL* fp, FSIZE_t ofs); /* Move file pointer of the file object */ +FRESULT f_truncate (FIL* fp); /* Truncate the file */ +FRESULT f_sync (FIL* fp); /* Flush cached data of the writing file */ +FRESULT f_opendir (DIR* dp, const TCHAR* path); /* Open a directory */ +FRESULT f_closedir (DIR* dp); /* Close an open directory */ +FRESULT f_readdir (DIR* dp, FILINFO* fno); /* Read a directory item */ +FRESULT f_findfirst (DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */ +FRESULT f_findnext (DIR* dp, FILINFO* fno); /* Find next file */ +FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */ +FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */ +FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */ +FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */ +FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of a file/dir */ +FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change timestamp of a file/dir */ +FRESULT f_chdir (const TCHAR* path); /* Change current directory */ +FRESULT f_chdrive (const TCHAR* path); /* Change current drive */ +FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */ +FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */ +FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */ +FRESULT f_setlabel (const TCHAR* label); /* Set volume label */ +FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */ +FRESULT f_expand (FIL* fp, FSIZE_t fsz, BYTE opt); /* Allocate a contiguous block to the file */ +FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */ +FRESULT f_mkfs (const TCHAR* path, const MKFS_PARM* opt, void* work, UINT len); /* Create a FAT volume */ +FRESULT f_fdisk (BYTE pdrv, const LBA_t ptbl[], void* work); /* Divide a physical drive into some partitions */ +FRESULT f_setcp (WORD cp); /* Set current code page */ +int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */ +int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */ +int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */ +TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */ + +#define f_eof(fp) ((int)((fp)->fptr == (fp)->obj.objsize)) +#define f_error(fp) ((fp)->err) +#define f_tell(fp) ((fp)->fptr) +#define f_size(fp) ((fp)->obj.objsize) +#define f_rewind(fp) f_lseek((fp), 0) +#define f_rewinddir(dp) f_readdir((dp), 0) +#define f_rmdir(path) f_unlink(path) +#define f_unmount(path) f_mount(0, path, 0) + +#ifndef EOF +#define EOF (-1) +#endif + + + + +/*--------------------------------------------------------------*/ +/* Additional user defined functions */ + +/* RTC function */ +#if !FF_FS_READONLY && !FF_FS_NORTC +DWORD get_fattime (void); +#endif + +/* LFN support functions */ +#if FF_USE_LFN >= 1 /* Code conversion (defined in unicode.c) */ +WCHAR ff_oem2uni (WCHAR oem, WORD cp); /* OEM code to Unicode conversion */ +WCHAR ff_uni2oem (DWORD uni, WORD cp); /* Unicode to OEM code conversion */ +DWORD ff_wtoupper (DWORD uni); /* Unicode upper-case conversion */ +#endif +#if FF_USE_LFN == 3 /* Dynamic memory allocation */ +void* ff_memalloc (UINT msize); /* Allocate memory block */ +void ff_memfree (void* mblock); /* Free memory block */ +#endif + +/* Sync functions */ +#if FF_FS_REENTRANT +int ff_cre_syncobj (BYTE vol, FF_SYNC_t* sobj); /* Create a sync object */ +int ff_req_grant (FF_SYNC_t sobj); /* Lock sync object */ +void ff_rel_grant (FF_SYNC_t sobj); /* Unlock sync object */ +int ff_del_syncobj (FF_SYNC_t sobj); /* Delete a sync object */ +#endif + + + + +/*--------------------------------------------------------------*/ +/* Flags and offset address */ + + +/* File access mode and open method flags (3rd argument of f_open) */ +#define FA_READ 0x01 +#define FA_WRITE 0x02 +#define FA_OPEN_EXISTING 0x00 +#define FA_CREATE_NEW 0x04 +#define FA_CREATE_ALWAYS 0x08 +#define FA_OPEN_ALWAYS 0x10 +#define FA_OPEN_APPEND 0x30 + +/* Fast seek controls (2nd argument of f_lseek) */ +#define CREATE_LINKMAP ((FSIZE_t)0 - 1) + +/* Format options (2nd argument of f_mkfs) */ +#define FM_FAT 0x01 +#define FM_FAT32 0x02 +#define FM_EXFAT 0x04 +#define FM_ANY 0x07 +#define FM_SFD 0x08 + +/* Filesystem type (FATFS.fs_type) */ +#define FS_FAT12 1 +#define FS_FAT16 2 +#define FS_FAT32 3 +#define FS_EXFAT 4 + +/* File attribute bits for directory entry (FILINFO.fattrib) */ +#define AM_RDO 0x01 /* Read only */ +#define AM_HID 0x02 /* Hidden */ +#define AM_SYS 0x04 /* System */ +#define AM_DIR 0x10 /* Directory */ +#define AM_ARC 0x20 /* Archive */ + + +#ifdef __cplusplus +} +#endif + +#endif /* FF_DEFINED */ diff --git a/middleware/fatfs/source/ffconf_template.h b/middleware/fatfs/source/ffconf_template.h new file mode 100644 index 0000000..bdbe320 --- /dev/null +++ b/middleware/fatfs/source/ffconf_template.h @@ -0,0 +1,298 @@ +/*---------------------------------------------------------------------------/ +/ FatFs Functional Configurations +/---------------------------------------------------------------------------*/ + +#define FFCONF_DEF 86606 /* Revision ID */ + +/*---------------------------------------------------------------------------/ +/ Function Configurations +/---------------------------------------------------------------------------*/ + +#define FF_FS_READONLY 0 +/* This option switches read-only configuration. (0:Read/Write or 1:Read-only) +/ Read-only configuration removes writing API functions, f_write(), f_sync(), +/ f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree() +/ and optional writing functions as well. */ + + +#define FF_FS_MINIMIZE 0 +/* This option defines minimization level to remove some basic API functions. +/ +/ 0: Basic functions are fully enabled. +/ 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_truncate() and f_rename() +/ are removed. +/ 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1. +/ 3: f_lseek() function is removed in addition to 2. */ + + +#define FF_USE_STRFUNC 0 +/* This option switches string functions, f_gets(), f_putc(), f_puts() and f_printf(). +/ +/ 0: Disable string functions. +/ 1: Enable without LF-CRLF conversion. +/ 2: Enable with LF-CRLF conversion. */ + + +#define FF_USE_FIND 0 +/* This option switches filtered directory read functions, f_findfirst() and +/ f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */ + + +#define FF_USE_MKFS 0 +/* This option switches f_mkfs() function. (0:Disable or 1:Enable) */ + + +#define FF_USE_FASTSEEK 0 +/* This option switches fast seek function. (0:Disable or 1:Enable) */ + + +#define FF_USE_EXPAND 0 +/* This option switches f_expand function. (0:Disable or 1:Enable) */ + + +#define FF_USE_CHMOD 0 +/* This option switches attribute manipulation functions, f_chmod() and f_utime(). +/ (0:Disable or 1:Enable) Also FF_FS_READONLY needs to be 0 to enable this option. */ + + +#define FF_USE_LABEL 0 +/* This option switches volume label functions, f_getlabel() and f_setlabel(). +/ (0:Disable or 1:Enable) */ + + +#define FF_USE_FORWARD 0 +/* This option switches f_forward() function. (0:Disable or 1:Enable) */ + + +/*---------------------------------------------------------------------------/ +/ Locale and Namespace Configurations +/---------------------------------------------------------------------------*/ + +#define FF_CODE_PAGE 932 +/* This option specifies the OEM code page to be used on the target system. +/ Incorrect code page setting can cause a file open failure. +/ +/ 437 - U.S. +/ 720 - Arabic +/ 737 - Greek +/ 771 - KBL +/ 775 - Baltic +/ 850 - Latin 1 +/ 852 - Latin 2 +/ 855 - Cyrillic +/ 857 - Turkish +/ 860 - Portuguese +/ 861 - Icelandic +/ 862 - Hebrew +/ 863 - Canadian French +/ 864 - Arabic +/ 865 - Nordic +/ 866 - Russian +/ 869 - Greek 2 +/ 932 - Japanese (DBCS) +/ 936 - Simplified Chinese (DBCS) +/ 949 - Korean (DBCS) +/ 950 - Traditional Chinese (DBCS) +/ 0 - Include all code pages above and configured by f_setcp() +*/ + + +#define FF_USE_LFN 0 +#define FF_MAX_LFN 255 +/* The FF_USE_LFN switches the support for LFN (long file name). +/ +/ 0: Disable LFN. FF_MAX_LFN has no effect. +/ 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe. +/ 2: Enable LFN with dynamic working buffer on the STACK. +/ 3: Enable LFN with dynamic working buffer on the HEAP. +/ +/ To enable the LFN, ffunicode.c needs to be added to the project. The LFN function +/ requiers certain internal working buffer occupies (FF_MAX_LFN + 1) * 2 bytes and +/ additional (FF_MAX_LFN + 44) / 15 * 32 bytes when exFAT is enabled. +/ The FF_MAX_LFN defines size of the working buffer in UTF-16 code unit and it can +/ be in range of 12 to 255. It is recommended to be set it 255 to fully support LFN +/ specification. +/ When use stack for the working buffer, take care on stack overflow. When use heap +/ memory for the working buffer, memory management functions, ff_memalloc() and +/ ff_memfree() exemplified in ffsystem.c, need to be added to the project. */ + + +#define FF_LFN_UNICODE 0 +/* This option switches the character encoding on the API when LFN is enabled. +/ +/ 0: ANSI/OEM in current CP (TCHAR = char) +/ 1: Unicode in UTF-16 (TCHAR = WCHAR) +/ 2: Unicode in UTF-8 (TCHAR = char) +/ 3: Unicode in UTF-32 (TCHAR = DWORD) +/ +/ Also behavior of string I/O functions will be affected by this option. +/ When LFN is not enabled, this option has no effect. */ + + +#define FF_LFN_BUF 255 +#define FF_SFN_BUF 12 +/* This set of options defines size of file name members in the FILINFO structure +/ which is used to read out directory items. These values should be suffcient for +/ the file names to read. The maximum possible length of the read file name depends +/ on character encoding. When LFN is not enabled, these options have no effect. */ + + +#define FF_STRF_ENCODE 3 +/* When FF_LFN_UNICODE >= 1 with LFN enabled, string I/O functions, f_gets(), +/ f_putc(), f_puts and f_printf() convert the character encoding in it. +/ This option selects assumption of character encoding ON THE FILE to be +/ read/written via those functions. +/ +/ 0: ANSI/OEM in current CP +/ 1: Unicode in UTF-16LE +/ 2: Unicode in UTF-16BE +/ 3: Unicode in UTF-8 +*/ + + +#define FF_FS_RPATH 0 +/* This option configures support for relative path. +/ +/ 0: Disable relative path and remove related functions. +/ 1: Enable relative path. f_chdir() and f_chdrive() are available. +/ 2: f_getcwd() function is available in addition to 1. +*/ + + +/*---------------------------------------------------------------------------/ +/ Drive/Volume Configurations +/---------------------------------------------------------------------------*/ + +#define FF_VOLUMES 1 +/* Number of volumes (logical drives) to be used. (1-10) */ + + +#define FF_STR_VOLUME_ID 0 +#define FF_VOLUME_STRS "RAM","NAND","CF","SD","SD2","USB","USB2","USB3" +/* FF_STR_VOLUME_ID switches support for volume ID in arbitrary strings. +/ When FF_STR_VOLUME_ID is set to 1 or 2, arbitrary strings can be used as drive +/ number in the path name. FF_VOLUME_STRS defines the volume ID strings for each +/ logical drives. Number of items must not be less than FF_VOLUMES. Valid +/ characters for the volume ID strings are A-Z, a-z and 0-9, however, they are +/ compared in case-insensitive. If FF_STR_VOLUME_ID >= 1 and FF_VOLUME_STRS is +/ not defined, a user defined volume string table needs to be defined as: +/ +/ const char* VolumeStr[FF_VOLUMES] = {"ram","flash","sd","usb",... +*/ + + +#define FF_MULTI_PARTITION 0 +/* This option switches support for multiple volumes on the physical drive. +/ By default (0), each logical drive number is bound to the same physical drive +/ number and only an FAT volume found on the physical drive will be mounted. +/ When this function is enabled (1), each logical drive number can be bound to +/ arbitrary physical drive and partition listed in the VolToPart[]. Also f_fdisk() +/ funciton will be available. */ + + +#define FF_MIN_SS 512 +#define FF_MAX_SS 512 +/* This set of options configures the range of sector size to be supported. (512, +/ 1024, 2048 or 4096) Always set both 512 for most systems, generic memory card and +/ harddisk. But a larger value may be required for on-board flash memory and some +/ type of optical media. When FF_MAX_SS is larger than FF_MIN_SS, FatFs is configured +/ for variable sector size mode and disk_ioctl() function needs to implement +/ GET_SECTOR_SIZE command. */ + + +#define FF_LBA64 0 +/* This option switches support for 64-bit LBA. (0:Disable or 1:Enable) +/ To enable the 64-bit LBA, also exFAT needs to be enabled. (FF_FS_EXFAT == 1) */ + + +#define FF_MIN_GPT 0x100000000 +/* Minimum number of sectors to switch GPT format to create partition in f_mkfs and +/ f_fdisk function. 0x100000000 max. This option has no effect when FF_LBA64 == 0. */ + + +#define FF_USE_TRIM 0 +/* This option switches support for ATA-TRIM. (0:Disable or 1:Enable) +/ To enable Trim function, also CTRL_TRIM command should be implemented to the +/ disk_ioctl() function. */ + + + +/*---------------------------------------------------------------------------/ +/ System Configurations +/---------------------------------------------------------------------------*/ + +#define FF_FS_TINY 0 +/* This option switches tiny buffer configuration. (0:Normal or 1:Tiny) +/ At the tiny configuration, size of file object (FIL) is shrinked FF_MAX_SS bytes. +/ Instead of private sector buffer eliminated from the file object, common sector +/ buffer in the filesystem object (FATFS) is used for the file data transfer. */ + + +#define FF_FS_EXFAT 0 +/* This option switches support for exFAT filesystem. (0:Disable or 1:Enable) +/ To enable exFAT, also LFN needs to be enabled. (FF_USE_LFN >= 1) +/ Note that enabling exFAT discards ANSI C (C89) compatibility. */ + + +#define FF_FS_NORTC 0 +#define FF_NORTC_MON 1 +#define FF_NORTC_MDAY 1 +#define FF_NORTC_YEAR 2019 +/* The option FF_FS_NORTC switches timestamp functiton. If the system does not have +/ any RTC function or valid timestamp is not needed, set FF_FS_NORTC = 1 to disable +/ the timestamp function. Every object modified by FatFs will have a fixed timestamp +/ defined by FF_NORTC_MON, FF_NORTC_MDAY and FF_NORTC_YEAR in local time. +/ To enable timestamp function (FF_FS_NORTC = 0), get_fattime() function need to be +/ added to the project to read current time form real-time clock. FF_NORTC_MON, +/ FF_NORTC_MDAY and FF_NORTC_YEAR have no effect. +/ These options have no effect in read-only configuration (FF_FS_READONLY = 1). */ + + +#define FF_FS_NOFSINFO 0 +/* If you need to know correct free space on the FAT32 volume, set bit 0 of this +/ option, and f_getfree() function at first time after volume mount will force +/ a full FAT scan. Bit 1 controls the use of last allocated cluster number. +/ +/ bit0=0: Use free cluster count in the FSINFO if available. +/ bit0=1: Do not trust free cluster count in the FSINFO. +/ bit1=0: Use last allocated cluster number in the FSINFO if available. +/ bit1=1: Do not trust last allocated cluster number in the FSINFO. +*/ + + +#define FF_FS_LOCK 0 +/* The option FF_FS_LOCK switches file lock function to control duplicated file open +/ and illegal operation to open objects. This option must be 0 when FF_FS_READONLY +/ is 1. +/ +/ 0: Disable file lock function. To avoid volume corruption, application program +/ should avoid illegal open, remove and rename to the open objects. +/ >0: Enable file lock function. The value defines how many files/sub-directories +/ can be opened simultaneously under file lock control. Note that the file +/ lock control is independent of re-entrancy. */ + + +/* #include // O/S definitions */ +#define FF_FS_REENTRANT 0 +#define FF_FS_TIMEOUT 1000 +#define FF_SYNC_t HANDLE +/* The option FF_FS_REENTRANT switches the re-entrancy (thread safe) of the FatFs +/ module itself. Note that regardless of this option, file access to different +/ volume is always re-entrant and volume control functions, f_mount(), f_mkfs() +/ and f_fdisk() function, are always not re-entrant. Only file/directory access +/ to the same volume is under control of this function. +/ +/ 0: Disable re-entrancy. FF_FS_TIMEOUT and FF_SYNC_t have no effect. +/ 1: Enable re-entrancy. Also user provided synchronization handlers, +/ ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj() +/ function, must be added to the project. Samples are available in +/ option/syscall.c. +/ +/ The FF_FS_TIMEOUT defines timeout period in unit of time tick. +/ The FF_SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*, +/ SemaphoreHandle_t and etc. A header file for O/S definitions needs to be +/ included somewhere in the scope of ff.h. */ + + + +/*--- End of configuration options ---*/ diff --git a/middleware/fatfs/source/ffsystem.c b/middleware/fatfs/source/ffsystem.c new file mode 100644 index 0000000..009cb3e --- /dev/null +++ b/middleware/fatfs/source/ffsystem.c @@ -0,0 +1,182 @@ +/*------------------------------------------------------------------------*/ +/* Sample Code of OS Dependent Functions for FatFs */ +/* (C)ChaN, 2018 */ +/*------------------------------------------------------------------------*/ + + +#include "ff.h" + + +#if FF_USE_LFN == 3 /* Dynamic memory allocation */ + +#ifdef FSL_RTOS_FREE_RTOS +#include "FreeRTOS.h" +#endif + +/*------------------------------------------------------------------------*/ +/* Allocate a memory block */ +/*------------------------------------------------------------------------*/ + +void* ff_memalloc ( /* Returns pointer to the allocated memory block (null if not enough core) */ + UINT msize /* Number of bytes to allocate */ +) +{ +#ifdef FSL_RTOS_FREE_RTOS + return pvPortMalloc(msize); +#else + return malloc(msize); /* Allocate a new memory block with POSIX API */ +#endif +} + + +/*------------------------------------------------------------------------*/ +/* Free a memory block */ +/*------------------------------------------------------------------------*/ + +void ff_memfree ( + void* mblock /* Pointer to the memory block to free (nothing to do if null) */ +) +{ +#ifdef FSL_RTOS_FREE_RTOS + vPortFree(mblock); +#else + free(mblock); /* Free the memory block with POSIX API */ +#endif +} + +#endif + + + +#if FF_FS_REENTRANT /* Mutal exclusion */ + +/*------------------------------------------------------------------------*/ +/* Create a Synchronization Object */ +/*------------------------------------------------------------------------*/ +/* This function is called in f_mount() function to create a new +/ synchronization object for the volume, such as semaphore and mutex. +/ When a 0 is returned, the f_mount() function fails with FR_INT_ERR. +*/ + +//const osMutexDef_t Mutex[FF_VOLUMES]; /* Table of CMSIS-RTOS mutex */ + + +int ff_cre_syncobj ( /* 1:Function succeeded, 0:Could not create the sync object */ + BYTE vol, /* Corresponding volume (logical drive number) */ + FF_SYNC_t* sobj /* Pointer to return the created sync object */ +) +{ + /* Win32 */ +// *sobj = CreateMutex(NULL, FALSE, NULL); +// return (int)(*sobj != INVALID_HANDLE_VALUE); + + /* uITRON */ +// T_CSEM csem = {TA_TPRI,1,1}; +// *sobj = acre_sem(&csem); +// return (int)(*sobj > 0); + + /* uC/OS-II */ +// OS_ERR err; +// *sobj = OSMutexCreate(0, &err); +// return (int)(err == OS_NO_ERR); + + /* FreeRTOS */ + *sobj = xSemaphoreCreateMutex(); + return (int)(*sobj != NULL); + + /* CMSIS-RTOS */ +// *sobj = osMutexCreate(&Mutex[vol]); +// return (int)(*sobj != NULL); +} + + +/*------------------------------------------------------------------------*/ +/* Delete a Synchronization Object */ +/*------------------------------------------------------------------------*/ +/* This function is called in f_mount() function to delete a synchronization +/ object that created with ff_cre_syncobj() function. When a 0 is returned, +/ the f_mount() function fails with FR_INT_ERR. +*/ + +int ff_del_syncobj ( /* 1:Function succeeded, 0:Could not delete due to an error */ + FF_SYNC_t sobj /* Sync object tied to the logical drive to be deleted */ +) +{ + /* Win32 */ +// return (int)CloseHandle(sobj); + + /* uITRON */ +// return (int)(del_sem(sobj) == E_OK); + + /* uC/OS-II */ +// OS_ERR err; +// OSMutexDel(sobj, OS_DEL_ALWAYS, &err); +// return (int)(err == OS_NO_ERR); + + /* FreeRTOS */ + vSemaphoreDelete(sobj); + return 1; + + /* CMSIS-RTOS */ +// return (int)(osMutexDelete(sobj) == osOK); +} + + +/*------------------------------------------------------------------------*/ +/* Request Grant to Access the Volume */ +/*------------------------------------------------------------------------*/ +/* This function is called on entering file functions to lock the volume. +/ When a 0 is returned, the file function fails with FR_TIMEOUT. +*/ + +int ff_req_grant ( /* 1:Got a grant to access the volume, 0:Could not get a grant */ + FF_SYNC_t sobj /* Sync object to wait */ +) +{ + /* Win32 */ +// return (int)(WaitForSingleObject(sobj, FF_FS_TIMEOUT) == WAIT_OBJECT_0); + + /* uITRON */ +// return (int)(wai_sem(sobj) == E_OK); + + /* uC/OS-II */ +// OS_ERR err; +// OSMutexPend(sobj, FF_FS_TIMEOUT, &err)); +// return (int)(err == OS_NO_ERR); + + /* FreeRTOS */ + return (int)(xSemaphoreTake(sobj, FF_FS_TIMEOUT) == pdTRUE); + + /* CMSIS-RTOS */ +// return (int)(osMutexWait(sobj, FF_FS_TIMEOUT) == osOK); +} + + +/*------------------------------------------------------------------------*/ +/* Release Grant to Access the Volume */ +/*------------------------------------------------------------------------*/ +/* This function is called on leaving file functions to unlock the volume. +*/ + +void ff_rel_grant ( + FF_SYNC_t sobj /* Sync object to be signaled */ +) +{ + /* Win32 */ +// ReleaseMutex(sobj); + + /* uITRON */ +// sig_sem(sobj); + + /* uC/OS-II */ +// OSMutexPost(sobj); + + /* FreeRTOS */ + xSemaphoreGive(sobj); + + /* CMSIS-RTOS */ +// osMutexRelease(sobj); +} + +#endif + diff --git a/middleware/fatfs/source/ffunicode.c b/middleware/fatfs/source/ffunicode.c new file mode 100644 index 0000000..a69b24c --- /dev/null +++ b/middleware/fatfs/source/ffunicode.c @@ -0,0 +1,15593 @@ +/*------------------------------------------------------------------------*/ +/* Unicode handling functions for FatFs R0.13+ */ +/*------------------------------------------------------------------------*/ +/* This module will occupy a huge memory in the .const section when the / +/ FatFs is configured for LFN with DBCS. If the system has any Unicode / +/ utilitiy for the code conversion, this module should be modified to use / +/ that function to avoid silly memory consumption. / +/-------------------------------------------------------------------------*/ +/* +/ Copyright (C) 2014, ChaN, all right reserved. +/ +/ FatFs module is an open source software. Redistribution and use of FatFs in +/ source and binary forms, with or without modification, are permitted provided +/ that the following condition is met: +/ +/ 1. Redistributions of source code must retain the above copyright notice, +/ this condition and the following disclaimer. +/ +/ This software is provided by the copyright holder and contributors "AS IS" +/ and any warranties related to this software are DISCLAIMED. +/ The copyright owner or contributors be NOT LIABLE for any damages caused +/ by use of this software. +*/ + + +#include "ff.h" + +#if FF_USE_LFN /* This module will be blanked if non-LFN configuration */ + +#define MERGE2(a, b) a ## b +#define CVTBL(tbl, cp) MERGE2(tbl, cp) + + +/*------------------------------------------------------------------------*/ +/* Code Conversion Tables */ +/*------------------------------------------------------------------------*/ + +#if FF_CODE_PAGE == 932 || FF_CODE_PAGE == 0 /* Japanese */ +static const WCHAR uni2oem932[] = { /* Unicode --> Shift_JIS pairs */ + 0x00A7, 0x8198, 0x00A8, 0x814E, 0x00B0, 0x818B, 0x00B1, 0x817D, 0x00B4, 0x814C, 0x00B6, 0x81F7, 0x00D7, 0x817E, 0x00F7, 0x8180, + 0x0391, 0x839F, 0x0392, 0x83A0, 0x0393, 0x83A1, 0x0394, 0x83A2, 0x0395, 0x83A3, 0x0396, 0x83A4, 0x0397, 0x83A5, 0x0398, 0x83A6, + 0x0399, 0x83A7, 0x039A, 0x83A8, 0x039B, 0x83A9, 0x039C, 0x83AA, 0x039D, 0x83AB, 0x039E, 0x83AC, 0x039F, 0x83AD, 0x03A0, 0x83AE, + 0x03A1, 0x83AF, 0x03A3, 0x83B0, 0x03A4, 0x83B1, 0x03A5, 0x83B2, 0x03A6, 0x83B3, 0x03A7, 0x83B4, 0x03A8, 0x83B5, 0x03A9, 0x83B6, + 0x03B1, 0x83BF, 0x03B2, 0x83C0, 0x03B3, 0x83C1, 0x03B4, 0x83C2, 0x03B5, 0x83C3, 0x03B6, 0x83C4, 0x03B7, 0x83C5, 0x03B8, 0x83C6, + 0x03B9, 0x83C7, 0x03BA, 0x83C8, 0x03BB, 0x83C9, 0x03BC, 0x83CA, 0x03BD, 0x83CB, 0x03BE, 0x83CC, 0x03BF, 0x83CD, 0x03C0, 0x83CE, + 0x03C1, 0x83CF, 0x03C3, 0x83D0, 0x03C4, 0x83D1, 0x03C5, 0x83D2, 0x03C6, 0x83D3, 0x03C7, 0x83D4, 0x03C8, 0x83D5, 0x03C9, 0x83D6, + 0x0401, 0x8446, 0x0410, 0x8440, 0x0411, 0x8441, 0x0412, 0x8442, 0x0413, 0x8443, 0x0414, 0x8444, 0x0415, 0x8445, 0x0416, 0x8447, + 0x0417, 0x8448, 0x0418, 0x8449, 0x0419, 0x844A, 0x041A, 0x844B, 0x041B, 0x844C, 0x041C, 0x844D, 0x041D, 0x844E, 0x041E, 0x844F, + 0x041F, 0x8450, 0x0420, 0x8451, 0x0421, 0x8452, 0x0422, 0x8453, 0x0423, 0x8454, 0x0424, 0x8455, 0x0425, 0x8456, 0x0426, 0x8457, + 0x0427, 0x8458, 0x0428, 0x8459, 0x0429, 0x845A, 0x042A, 0x845B, 0x042B, 0x845C, 0x042C, 0x845D, 0x042D, 0x845E, 0x042E, 0x845F, + 0x042F, 0x8460, 0x0430, 0x8470, 0x0431, 0x8471, 0x0432, 0x8472, 0x0433, 0x8473, 0x0434, 0x8474, 0x0435, 0x8475, 0x0436, 0x8477, + 0x0437, 0x8478, 0x0438, 0x8479, 0x0439, 0x847A, 0x043A, 0x847B, 0x043B, 0x847C, 0x043C, 0x847D, 0x043D, 0x847E, 0x043E, 0x8480, + 0x043F, 0x8481, 0x0440, 0x8482, 0x0441, 0x8483, 0x0442, 0x8484, 0x0443, 0x8485, 0x0444, 0x8486, 0x0445, 0x8487, 0x0446, 0x8488, + 0x0447, 0x8489, 0x0448, 0x848A, 0x0449, 0x848B, 0x044A, 0x848C, 0x044B, 0x848D, 0x044C, 0x848E, 0x044D, 0x848F, 0x044E, 0x8490, + 0x044F, 0x8491, 0x0451, 0x8476, 0x2010, 0x815D, 0x2015, 0x815C, 0x2018, 0x8165, 0x2019, 0x8166, 0x201C, 0x8167, 0x201D, 0x8168, + 0x2020, 0x81F5, 0x2021, 0x81F6, 0x2025, 0x8164, 0x2026, 0x8163, 0x2030, 0x81F1, 0x2032, 0x818C, 0x2033, 0x818D, 0x203B, 0x81A6, + 0x2103, 0x818E, 0x2116, 0x8782, 0x2121, 0x8784, 0x212B, 0x81F0, 0x2160, 0x8754, 0x2161, 0x8755, 0x2162, 0x8756, 0x2163, 0x8757, + 0x2164, 0x8758, 0x2165, 0x8759, 0x2166, 0x875A, 0x2167, 0x875B, 0x2168, 0x875C, 0x2169, 0x875D, 0x2170, 0xFA40, 0x2171, 0xFA41, + 0x2172, 0xFA42, 0x2173, 0xFA43, 0x2174, 0xFA44, 0x2175, 0xFA45, 0x2176, 0xFA46, 0x2177, 0xFA47, 0x2178, 0xFA48, 0x2179, 0xFA49, + 0x2190, 0x81A9, 0x2191, 0x81AA, 0x2192, 0x81A8, 0x2193, 0x81AB, 0x21D2, 0x81CB, 0x21D4, 0x81CC, 0x2200, 0x81CD, 0x2202, 0x81DD, + 0x2203, 0x81CE, 0x2207, 0x81DE, 0x2208, 0x81B8, 0x220B, 0x81B9, 0x2211, 0x8794, 0x221A, 0x81E3, 0x221D, 0x81E5, 0x221E, 0x8187, + 0x221F, 0x8798, 0x2220, 0x81DA, 0x2225, 0x8161, 0x2227, 0x81C8, 0x2228, 0x81C9, 0x2229, 0x81BF, 0x222A, 0x81BE, 0x222B, 0x81E7, + 0x222C, 0x81E8, 0x222E, 0x8793, 0x2234, 0x8188, 0x2235, 0x81E6, 0x223D, 0x81E4, 0x2252, 0x81E0, 0x2260, 0x8182, 0x2261, 0x81DF, + 0x2266, 0x8185, 0x2267, 0x8186, 0x226A, 0x81E1, 0x226B, 0x81E2, 0x2282, 0x81BC, 0x2283, 0x81BD, 0x2286, 0x81BA, 0x2287, 0x81BB, + 0x22A5, 0x81DB, 0x22BF, 0x8799, 0x2312, 0x81DC, 0x2460, 0x8740, 0x2461, 0x8741, 0x2462, 0x8742, 0x2463, 0x8743, 0x2464, 0x8744, + 0x2465, 0x8745, 0x2466, 0x8746, 0x2467, 0x8747, 0x2468, 0x8748, 0x2469, 0x8749, 0x246A, 0x874A, 0x246B, 0x874B, 0x246C, 0x874C, + 0x246D, 0x874D, 0x246E, 0x874E, 0x246F, 0x874F, 0x2470, 0x8750, 0x2471, 0x8751, 0x2472, 0x8752, 0x2473, 0x8753, 0x2500, 0x849F, + 0x2501, 0x84AA, 0x2502, 0x84A0, 0x2503, 0x84AB, 0x250C, 0x84A1, 0x250F, 0x84AC, 0x2510, 0x84A2, 0x2513, 0x84AD, 0x2514, 0x84A4, + 0x2517, 0x84AF, 0x2518, 0x84A3, 0x251B, 0x84AE, 0x251C, 0x84A5, 0x251D, 0x84BA, 0x2520, 0x84B5, 0x2523, 0x84B0, 0x2524, 0x84A7, + 0x2525, 0x84BC, 0x2528, 0x84B7, 0x252B, 0x84B2, 0x252C, 0x84A6, 0x252F, 0x84B6, 0x2530, 0x84BB, 0x2533, 0x84B1, 0x2534, 0x84A8, + 0x2537, 0x84B8, 0x2538, 0x84BD, 0x253B, 0x84B3, 0x253C, 0x84A9, 0x253F, 0x84B9, 0x2542, 0x84BE, 0x254B, 0x84B4, 0x25A0, 0x81A1, + 0x25A1, 0x81A0, 0x25B2, 0x81A3, 0x25B3, 0x81A2, 0x25BC, 0x81A5, 0x25BD, 0x81A4, 0x25C6, 0x819F, 0x25C7, 0x819E, 0x25CB, 0x819B, + 0x25CE, 0x819D, 0x25CF, 0x819C, 0x25EF, 0x81FC, 0x2605, 0x819A, 0x2606, 0x8199, 0x2640, 0x818A, 0x2642, 0x8189, 0x266A, 0x81F4, + 0x266D, 0x81F3, 0x266F, 0x81F2, 0x3000, 0x8140, 0x3001, 0x8141, 0x3002, 0x8142, 0x3003, 0x8156, 0x3005, 0x8158, 0x3006, 0x8159, + 0x3007, 0x815A, 0x3008, 0x8171, 0x3009, 0x8172, 0x300A, 0x8173, 0x300B, 0x8174, 0x300C, 0x8175, 0x300D, 0x8176, 0x300E, 0x8177, + 0x300F, 0x8178, 0x3010, 0x8179, 0x3011, 0x817A, 0x3012, 0x81A7, 0x3013, 0x81AC, 0x3014, 0x816B, 0x3015, 0x816C, 0x301D, 0x8780, + 0x301F, 0x8781, 0x3041, 0x829F, 0x3042, 0x82A0, 0x3043, 0x82A1, 0x3044, 0x82A2, 0x3045, 0x82A3, 0x3046, 0x82A4, 0x3047, 0x82A5, + 0x3048, 0x82A6, 0x3049, 0x82A7, 0x304A, 0x82A8, 0x304B, 0x82A9, 0x304C, 0x82AA, 0x304D, 0x82AB, 0x304E, 0x82AC, 0x304F, 0x82AD, + 0x3050, 0x82AE, 0x3051, 0x82AF, 0x3052, 0x82B0, 0x3053, 0x82B1, 0x3054, 0x82B2, 0x3055, 0x82B3, 0x3056, 0x82B4, 0x3057, 0x82B5, + 0x3058, 0x82B6, 0x3059, 0x82B7, 0x305A, 0x82B8, 0x305B, 0x82B9, 0x305C, 0x82BA, 0x305D, 0x82BB, 0x305E, 0x82BC, 0x305F, 0x82BD, + 0x3060, 0x82BE, 0x3061, 0x82BF, 0x3062, 0x82C0, 0x3063, 0x82C1, 0x3064, 0x82C2, 0x3065, 0x82C3, 0x3066, 0x82C4, 0x3067, 0x82C5, + 0x3068, 0x82C6, 0x3069, 0x82C7, 0x306A, 0x82C8, 0x306B, 0x82C9, 0x306C, 0x82CA, 0x306D, 0x82CB, 0x306E, 0x82CC, 0x306F, 0x82CD, + 0x3070, 0x82CE, 0x3071, 0x82CF, 0x3072, 0x82D0, 0x3073, 0x82D1, 0x3074, 0x82D2, 0x3075, 0x82D3, 0x3076, 0x82D4, 0x3077, 0x82D5, + 0x3078, 0x82D6, 0x3079, 0x82D7, 0x307A, 0x82D8, 0x307B, 0x82D9, 0x307C, 0x82DA, 0x307D, 0x82DB, 0x307E, 0x82DC, 0x307F, 0x82DD, + 0x3080, 0x82DE, 0x3081, 0x82DF, 0x3082, 0x82E0, 0x3083, 0x82E1, 0x3084, 0x82E2, 0x3085, 0x82E3, 0x3086, 0x82E4, 0x3087, 0x82E5, + 0x3088, 0x82E6, 0x3089, 0x82E7, 0x308A, 0x82E8, 0x308B, 0x82E9, 0x308C, 0x82EA, 0x308D, 0x82EB, 0x308E, 0x82EC, 0x308F, 0x82ED, + 0x3090, 0x82EE, 0x3091, 0x82EF, 0x3092, 0x82F0, 0x3093, 0x82F1, 0x309B, 0x814A, 0x309C, 0x814B, 0x309D, 0x8154, 0x309E, 0x8155, + 0x30A1, 0x8340, 0x30A2, 0x8341, 0x30A3, 0x8342, 0x30A4, 0x8343, 0x30A5, 0x8344, 0x30A6, 0x8345, 0x30A7, 0x8346, 0x30A8, 0x8347, + 0x30A9, 0x8348, 0x30AA, 0x8349, 0x30AB, 0x834A, 0x30AC, 0x834B, 0x30AD, 0x834C, 0x30AE, 0x834D, 0x30AF, 0x834E, 0x30B0, 0x834F, + 0x30B1, 0x8350, 0x30B2, 0x8351, 0x30B3, 0x8352, 0x30B4, 0x8353, 0x30B5, 0x8354, 0x30B6, 0x8355, 0x30B7, 0x8356, 0x30B8, 0x8357, + 0x30B9, 0x8358, 0x30BA, 0x8359, 0x30BB, 0x835A, 0x30BC, 0x835B, 0x30BD, 0x835C, 0x30BE, 0x835D, 0x30BF, 0x835E, 0x30C0, 0x835F, + 0x30C1, 0x8360, 0x30C2, 0x8361, 0x30C3, 0x8362, 0x30C4, 0x8363, 0x30C5, 0x8364, 0x30C6, 0x8365, 0x30C7, 0x8366, 0x30C8, 0x8367, + 0x30C9, 0x8368, 0x30CA, 0x8369, 0x30CB, 0x836A, 0x30CC, 0x836B, 0x30CD, 0x836C, 0x30CE, 0x836D, 0x30CF, 0x836E, 0x30D0, 0x836F, + 0x30D1, 0x8370, 0x30D2, 0x8371, 0x30D3, 0x8372, 0x30D4, 0x8373, 0x30D5, 0x8374, 0x30D6, 0x8375, 0x30D7, 0x8376, 0x30D8, 0x8377, + 0x30D9, 0x8378, 0x30DA, 0x8379, 0x30DB, 0x837A, 0x30DC, 0x837B, 0x30DD, 0x837C, 0x30DE, 0x837D, 0x30DF, 0x837E, 0x30E0, 0x8380, + 0x30E1, 0x8381, 0x30E2, 0x8382, 0x30E3, 0x8383, 0x30E4, 0x8384, 0x30E5, 0x8385, 0x30E6, 0x8386, 0x30E7, 0x8387, 0x30E8, 0x8388, + 0x30E9, 0x8389, 0x30EA, 0x838A, 0x30EB, 0x838B, 0x30EC, 0x838C, 0x30ED, 0x838D, 0x30EE, 0x838E, 0x30EF, 0x838F, 0x30F0, 0x8390, + 0x30F1, 0x8391, 0x30F2, 0x8392, 0x30F3, 0x8393, 0x30F4, 0x8394, 0x30F5, 0x8395, 0x30F6, 0x8396, 0x30FB, 0x8145, 0x30FC, 0x815B, + 0x30FD, 0x8152, 0x30FE, 0x8153, 0x3231, 0x878A, 0x3232, 0x878B, 0x3239, 0x878C, 0x32A4, 0x8785, 0x32A5, 0x8786, 0x32A6, 0x8787, + 0x32A7, 0x8788, 0x32A8, 0x8789, 0x3303, 0x8765, 0x330D, 0x8769, 0x3314, 0x8760, 0x3318, 0x8763, 0x3322, 0x8761, 0x3323, 0x876B, + 0x3326, 0x876A, 0x3327, 0x8764, 0x332B, 0x876C, 0x3336, 0x8766, 0x333B, 0x876E, 0x3349, 0x875F, 0x334A, 0x876D, 0x334D, 0x8762, + 0x3351, 0x8767, 0x3357, 0x8768, 0x337B, 0x877E, 0x337C, 0x878F, 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0x9AC0, 0xE98F, 0x9AC4, 0x9091, 0x9ACF, 0xE990, 0x9AD1, 0xE991, 0x9AD3, 0xE992, 0x9AD4, 0xE993, 0x9AD8, 0x8D82, 0x9AD9, 0xFBFC, + 0x9ADC, 0xFC40, 0x9ADE, 0xE994, 0x9ADF, 0xE995, 0x9AE2, 0xE996, 0x9AE3, 0xE997, 0x9AE6, 0xE998, 0x9AEA, 0x94AF, 0x9AEB, 0xE99A, + 0x9AED, 0x9545, 0x9AEE, 0xE99B, 0x9AEF, 0xE999, 0x9AF1, 0xE99D, 0x9AF4, 0xE99C, 0x9AF7, 0xE99E, 0x9AFB, 0xE99F, 0x9B06, 0xE9A0, + 0x9B18, 0xE9A1, 0x9B1A, 0xE9A2, 0x9B1F, 0xE9A3, 0x9B22, 0xE9A4, 0x9B23, 0xE9A5, 0x9B25, 0xE9A6, 0x9B27, 0xE9A7, 0x9B28, 0xE9A8, + 0x9B29, 0xE9A9, 0x9B2A, 0xE9AA, 0x9B2E, 0xE9AB, 0x9B2F, 0xE9AC, 0x9B31, 0x9F54, 0x9B32, 0xE9AD, 0x9B3B, 0xE2F6, 0x9B3C, 0x8B53, + 0x9B41, 0x8A40, 0x9B42, 0x8DB0, 0x9B43, 0xE9AF, 0x9B44, 0xE9AE, 0x9B45, 0x96A3, 0x9B4D, 0xE9B1, 0x9B4E, 0xE9B2, 0x9B4F, 0xE9B0, + 0x9B51, 0xE9B3, 0x9B54, 0x9682, 0x9B58, 0xE9B4, 0x9B5A, 0x8B9B, 0x9B6F, 0x9844, 0x9B72, 0xFC42, 0x9B74, 0xE9B5, 0x9B75, 0xFC41, + 0x9B83, 0xE9B7, 0x9B8E, 0x88BC, 0x9B8F, 0xFC43, 0x9B91, 0xE9B8, 0x9B92, 0x95A9, 0x9B93, 0xE9B6, 0x9B96, 0xE9B9, 0x9B97, 0xE9BA, + 0x9B9F, 0xE9BB, 0x9BA0, 0xE9BC, 0x9BA8, 0xE9BD, 0x9BAA, 0x968E, 0x9BAB, 0x8E4C, 0x9BAD, 0x8DF8, 0x9BAE, 0x914E, 0x9BB1, 0xFC44, + 0x9BB4, 0xE9BE, 0x9BB9, 0xE9C1, 0x9BBB, 0xFC45, 0x9BC0, 0xE9BF, 0x9BC6, 0xE9C2, 0x9BC9, 0x8CEF, 0x9BCA, 0xE9C0, 0x9BCF, 0xE9C3, + 0x9BD1, 0xE9C4, 0x9BD2, 0xE9C5, 0x9BD4, 0xE9C9, 0x9BD6, 0x8E49, 0x9BDB, 0x91E2, 0x9BE1, 0xE9CA, 0x9BE2, 0xE9C7, 0x9BE3, 0xE9C6, + 0x9BE4, 0xE9C8, 0x9BE8, 0x8C7E, 0x9BF0, 0xE9CE, 0x9BF1, 0xE9CD, 0x9BF2, 0xE9CC, 0x9BF5, 0x88B1, 0x9C00, 0xFC46, 0x9C04, 0xE9D8, + 0x9C06, 0xE9D4, 0x9C08, 0xE9D5, 0x9C09, 0xE9D1, 0x9C0A, 0xE9D7, 0x9C0C, 0xE9D3, 0x9C0D, 0x8A82, 0x9C10, 0x986B, 0x9C12, 0xE9D6, + 0x9C13, 0xE9D2, 0x9C14, 0xE9D0, 0x9C15, 0xE9CF, 0x9C1B, 0xE9DA, 0x9C21, 0xE9DD, 0x9C24, 0xE9DC, 0x9C25, 0xE9DB, 0x9C2D, 0x9568, + 0x9C2E, 0xE9D9, 0x9C2F, 0x88F1, 0x9C30, 0xE9DE, 0x9C32, 0xE9E0, 0x9C39, 0x8A8F, 0x9C3A, 0xE9CB, 0x9C3B, 0x8956, 0x9C3E, 0xE9E2, + 0x9C46, 0xE9E1, 0x9C47, 0xE9DF, 0x9C48, 0x924C, 0x9C52, 0x9690, 0x9C57, 0x97D8, 0x9C5A, 0xE9E3, 0x9C60, 0xE9E4, 0x9C67, 0xE9E5, + 0x9C76, 0xE9E6, 0x9C78, 0xE9E7, 0x9CE5, 0x92B9, 0x9CE7, 0xE9E8, 0x9CE9, 0x94B5, 0x9CEB, 0xE9ED, 0x9CEC, 0xE9E9, 0x9CF0, 0xE9EA, + 0x9CF3, 0x9650, 0x9CF4, 0x96C2, 0x9CF6, 0x93CE, 0x9D03, 0xE9EE, 0x9D06, 0xE9EF, 0x9D07, 0x93BC, 0x9D08, 0xE9EC, 0x9D09, 0xE9EB, + 0x9D0E, 0x89A8, 0x9D12, 0xE9F7, 0x9D15, 0xE9F6, 0x9D1B, 0x8995, 0x9D1F, 0xE9F4, 0x9D23, 0xE9F3, 0x9D26, 0xE9F1, 0x9D28, 0x8A9B, + 0x9D2A, 0xE9F0, 0x9D2B, 0x8EB0, 0x9D2C, 0x89A7, 0x9D3B, 0x8D83, 0x9D3E, 0xE9FA, 0x9D3F, 0xE9F9, 0x9D41, 0xE9F8, 0x9D44, 0xE9F5, + 0x9D46, 0xE9FB, 0x9D48, 0xE9FC, 0x9D50, 0xEA44, 0x9D51, 0xEA43, 0x9D59, 0xEA45, 0x9D5C, 0x894C, 0x9D5D, 0xEA40, 0x9D5E, 0xEA41, + 0x9D60, 0x8D94, 0x9D61, 0x96B7, 0x9D64, 0xEA42, 0x9D6B, 0xFC48, 0x9D6C, 0x9651, 0x9D6F, 0xEA4A, 0x9D70, 0xFC47, 0x9D72, 0xEA46, + 0x9D7A, 0xEA4B, 0x9D87, 0xEA48, 0x9D89, 0xEA47, 0x9D8F, 0x8C7B, 0x9D9A, 0xEA4C, 0x9DA4, 0xEA4D, 0x9DA9, 0xEA4E, 0x9DAB, 0xEA49, + 0x9DAF, 0xE9F2, 0x9DB2, 0xEA4F, 0x9DB4, 0x92DF, 0x9DB8, 0xEA53, 0x9DBA, 0xEA54, 0x9DBB, 0xEA52, 0x9DC1, 0xEA51, 0x9DC2, 0xEA57, + 0x9DC4, 0xEA50, 0x9DC6, 0xEA55, 0x9DCF, 0xEA56, 0x9DD3, 0xEA59, 0x9DD9, 0xEA58, 0x9DE6, 0xEA5B, 0x9DED, 0xEA5C, 0x9DEF, 0xEA5D, + 0x9DF2, 0x9868, 0x9DF8, 0xEA5A, 0x9DF9, 0x91E9, 0x9DFA, 0x8DEB, 0x9DFD, 0xEA5E, 0x9E19, 0xFC4A, 0x9E1A, 0xEA5F, 0x9E1B, 0xEA60, + 0x9E1E, 0xEA61, 0x9E75, 0xEA62, 0x9E78, 0x8CB2, 0x9E79, 0xEA63, 0x9E7D, 0xEA64, 0x9E7F, 0x8EAD, 0x9E81, 0xEA65, 0x9E88, 0xEA66, + 0x9E8B, 0xEA67, 0x9E8C, 0xEA68, 0x9E91, 0xEA6B, 0x9E92, 0xEA69, 0x9E93, 0x985B, 0x9E95, 0xEA6A, 0x9E97, 0x97ED, 0x9E9D, 0xEA6C, + 0x9E9F, 0x97D9, 0x9EA5, 0xEA6D, 0x9EA6, 0x949E, 0x9EA9, 0xEA6E, 0x9EAA, 0xEA70, 0x9EAD, 0xEA71, 0x9EB8, 0xEA6F, 0x9EB9, 0x8D8D, + 0x9EBA, 0x96CB, 0x9EBB, 0x9683, 0x9EBC, 0x9BF5, 0x9EBE, 0x9F80, 0x9EBF, 0x969B, 0x9EC4, 0x89A9, 0x9ECC, 0xEA73, 0x9ECD, 0x8B6F, + 0x9ECE, 0xEA74, 0x9ECF, 0xEA75, 0x9ED0, 0xEA76, 0x9ED1, 0xFC4B, 0x9ED2, 0x8D95, 0x9ED4, 0xEA77, 0x9ED8, 0xE0D2, 0x9ED9, 0x96D9, + 0x9EDB, 0x91E1, 0x9EDC, 0xEA78, 0x9EDD, 0xEA7A, 0x9EDE, 0xEA79, 0x9EE0, 0xEA7B, 0x9EE5, 0xEA7C, 0x9EE8, 0xEA7D, 0x9EEF, 0xEA7E, + 0x9EF4, 0xEA80, 0x9EF6, 0xEA81, 0x9EF7, 0xEA82, 0x9EF9, 0xEA83, 0x9EFB, 0xEA84, 0x9EFC, 0xEA85, 0x9EFD, 0xEA86, 0x9F07, 0xEA87, + 0x9F08, 0xEA88, 0x9F0E, 0x9343, 0x9F13, 0x8CDB, 0x9F15, 0xEA8A, 0x9F20, 0x916C, 0x9F21, 0xEA8B, 0x9F2C, 0xEA8C, 0x9F3B, 0x9540, + 0x9F3E, 0xEA8D, 0x9F4A, 0xEA8E, 0x9F4B, 0xE256, 0x9F4E, 0xE6D8, 0x9F4F, 0xE8EB, 0x9F52, 0xEA8F, 0x9F54, 0xEA90, 0x9F5F, 0xEA92, + 0x9F60, 0xEA93, 0x9F61, 0xEA94, 0x9F62, 0x97EE, 0x9F63, 0xEA91, 0x9F66, 0xEA95, 0x9F67, 0xEA96, 0x9F6A, 0xEA98, 0x9F6C, 0xEA97, + 0x9F72, 0xEA9A, 0x9F76, 0xEA9B, 0x9F77, 0xEA99, 0x9F8D, 0x97B4, 0x9F95, 0xEA9C, 0x9F9C, 0xEA9D, 0x9F9D, 0xE273, 0x9FA0, 0xEA9E, + 0xF929, 0xFAE0, 0xF9DC, 0xFBE9, 0xFA0E, 0xFA90, 0xFA0F, 0xFA9B, 0xFA10, 0xFA9C, 0xFA11, 0xFAB1, 0xFA12, 0xFAD8, 0xFA13, 0xFAE8, + 0xFA14, 0xFAEA, 0xFA15, 0xFB58, 0xFA16, 0xFB5E, 0xFA17, 0xFB75, 0xFA18, 0xFB7D, 0xFA19, 0xFB7E, 0xFA1A, 0xFB80, 0xFA1B, 0xFB82, + 0xFA1C, 0xFB86, 0xFA1D, 0xFB89, 0xFA1E, 0xFB92, 0xFA1F, 0xFB9D, 0xFA20, 0xFB9F, 0xFA21, 0xFBA0, 0xFA22, 0xFBA9, 0xFA23, 0xFBB1, + 0xFA24, 0xFBB3, 0xFA25, 0xFBB4, 0xFA26, 0xFBB7, 0xFA27, 0xFBD3, 0xFA28, 0xFBDA, 0xFA29, 0xFBEA, 0xFA2A, 0xFBF6, 0xFA2B, 0xFBF7, + 0xFA2C, 0xFBF9, 0xFA2D, 0xFC49, 0xFF01, 0x8149, 0xFF02, 0xFA57, 0xFF03, 0x8194, 0xFF04, 0x8190, 0xFF05, 0x8193, 0xFF06, 0x8195, + 0xFF07, 0xFA56, 0xFF08, 0x8169, 0xFF09, 0x816A, 0xFF0A, 0x8196, 0xFF0B, 0x817B, 0xFF0C, 0x8143, 0xFF0D, 0x817C, 0xFF0E, 0x8144, + 0xFF0F, 0x815E, 0xFF10, 0x824F, 0xFF11, 0x8250, 0xFF12, 0x8251, 0xFF13, 0x8252, 0xFF14, 0x8253, 0xFF15, 0x8254, 0xFF16, 0x8255, + 0xFF17, 0x8256, 0xFF18, 0x8257, 0xFF19, 0x8258, 0xFF1A, 0x8146, 0xFF1B, 0x8147, 0xFF1C, 0x8183, 0xFF1D, 0x8181, 0xFF1E, 0x8184, + 0xFF1F, 0x8148, 0xFF20, 0x8197, 0xFF21, 0x8260, 0xFF22, 0x8261, 0xFF23, 0x8262, 0xFF24, 0x8263, 0xFF25, 0x8264, 0xFF26, 0x8265, + 0xFF27, 0x8266, 0xFF28, 0x8267, 0xFF29, 0x8268, 0xFF2A, 0x8269, 0xFF2B, 0x826A, 0xFF2C, 0x826B, 0xFF2D, 0x826C, 0xFF2E, 0x826D, + 0xFF2F, 0x826E, 0xFF30, 0x826F, 0xFF31, 0x8270, 0xFF32, 0x8271, 0xFF33, 0x8272, 0xFF34, 0x8273, 0xFF35, 0x8274, 0xFF36, 0x8275, + 0xFF37, 0x8276, 0xFF38, 0x8277, 0xFF39, 0x8278, 0xFF3A, 0x8279, 0xFF3B, 0x816D, 0xFF3C, 0x815F, 0xFF3D, 0x816E, 0xFF3E, 0x814F, + 0xFF3F, 0x8151, 0xFF40, 0x814D, 0xFF41, 0x8281, 0xFF42, 0x8282, 0xFF43, 0x8283, 0xFF44, 0x8284, 0xFF45, 0x8285, 0xFF46, 0x8286, + 0xFF47, 0x8287, 0xFF48, 0x8288, 0xFF49, 0x8289, 0xFF4A, 0x828A, 0xFF4B, 0x828B, 0xFF4C, 0x828C, 0xFF4D, 0x828D, 0xFF4E, 0x828E, + 0xFF4F, 0x828F, 0xFF50, 0x8290, 0xFF51, 0x8291, 0xFF52, 0x8292, 0xFF53, 0x8293, 0xFF54, 0x8294, 0xFF55, 0x8295, 0xFF56, 0x8296, + 0xFF57, 0x8297, 0xFF58, 0x8298, 0xFF59, 0x8299, 0xFF5A, 0x829A, 0xFF5B, 0x816F, 0xFF5C, 0x8162, 0xFF5D, 0x8170, 0xFF5E, 0x8160, + 0xFF61, 0x00A1, 0xFF62, 0x00A2, 0xFF63, 0x00A3, 0xFF64, 0x00A4, 0xFF65, 0x00A5, 0xFF66, 0x00A6, 0xFF67, 0x00A7, 0xFF68, 0x00A8, + 0xFF69, 0x00A9, 0xFF6A, 0x00AA, 0xFF6B, 0x00AB, 0xFF6C, 0x00AC, 0xFF6D, 0x00AD, 0xFF6E, 0x00AE, 0xFF6F, 0x00AF, 0xFF70, 0x00B0, + 0xFF71, 0x00B1, 0xFF72, 0x00B2, 0xFF73, 0x00B3, 0xFF74, 0x00B4, 0xFF75, 0x00B5, 0xFF76, 0x00B6, 0xFF77, 0x00B7, 0xFF78, 0x00B8, + 0xFF79, 0x00B9, 0xFF7A, 0x00BA, 0xFF7B, 0x00BB, 0xFF7C, 0x00BC, 0xFF7D, 0x00BD, 0xFF7E, 0x00BE, 0xFF7F, 0x00BF, 0xFF80, 0x00C0, + 0xFF81, 0x00C1, 0xFF82, 0x00C2, 0xFF83, 0x00C3, 0xFF84, 0x00C4, 0xFF85, 0x00C5, 0xFF86, 0x00C6, 0xFF87, 0x00C7, 0xFF88, 0x00C8, + 0xFF89, 0x00C9, 0xFF8A, 0x00CA, 0xFF8B, 0x00CB, 0xFF8C, 0x00CC, 0xFF8D, 0x00CD, 0xFF8E, 0x00CE, 0xFF8F, 0x00CF, 0xFF90, 0x00D0, + 0xFF91, 0x00D1, 0xFF92, 0x00D2, 0xFF93, 0x00D3, 0xFF94, 0x00D4, 0xFF95, 0x00D5, 0xFF96, 0x00D6, 0xFF97, 0x00D7, 0xFF98, 0x00D8, + 0xFF99, 0x00D9, 0xFF9A, 0x00DA, 0xFF9B, 0x00DB, 0xFF9C, 0x00DC, 0xFF9D, 0x00DD, 0xFF9E, 0x00DE, 0xFF9F, 0x00DF, 0xFFE0, 0x8191, + 0xFFE1, 0x8192, 0xFFE2, 0x81CA, 0xFFE3, 0x8150, 0xFFE4, 0xFA55, 0xFFE5, 0x818F, 0, 0 +}; + +static const WCHAR oem2uni932[] = { /* Shift_JIS --> Unicode pairs */ + 0x00A1, 0xFF61, 0x00A2, 0xFF62, 0x00A3, 0xFF63, 0x00A4, 0xFF64, 0x00A5, 0xFF65, 0x00A6, 0xFF66, 0x00A7, 0xFF67, 0x00A8, 0xFF68, + 0x00A9, 0xFF69, 0x00AA, 0xFF6A, 0x00AB, 0xFF6B, 0x00AC, 0xFF6C, 0x00AD, 0xFF6D, 0x00AE, 0xFF6E, 0x00AF, 0xFF6F, 0x00B0, 0xFF70, + 0x00B1, 0xFF71, 0x00B2, 0xFF72, 0x00B3, 0xFF73, 0x00B4, 0xFF74, 0x00B5, 0xFF75, 0x00B6, 0xFF76, 0x00B7, 0xFF77, 0x00B8, 0xFF78, + 0x00B9, 0xFF79, 0x00BA, 0xFF7A, 0x00BB, 0xFF7B, 0x00BC, 0xFF7C, 0x00BD, 0xFF7D, 0x00BE, 0xFF7E, 0x00BF, 0xFF7F, 0x00C0, 0xFF80, + 0x00C1, 0xFF81, 0x00C2, 0xFF82, 0x00C3, 0xFF83, 0x00C4, 0xFF84, 0x00C5, 0xFF85, 0x00C6, 0xFF86, 0x00C7, 0xFF87, 0x00C8, 0xFF88, + 0x00C9, 0xFF89, 0x00CA, 0xFF8A, 0x00CB, 0xFF8B, 0x00CC, 0xFF8C, 0x00CD, 0xFF8D, 0x00CE, 0xFF8E, 0x00CF, 0xFF8F, 0x00D0, 0xFF90, + 0x00D1, 0xFF91, 0x00D2, 0xFF92, 0x00D3, 0xFF93, 0x00D4, 0xFF94, 0x00D5, 0xFF95, 0x00D6, 0xFF96, 0x00D7, 0xFF97, 0x00D8, 0xFF98, + 0x00D9, 0xFF99, 0x00DA, 0xFF9A, 0x00DB, 0xFF9B, 0x00DC, 0xFF9C, 0x00DD, 0xFF9D, 0x00DE, 0xFF9E, 0x00DF, 0xFF9F, 0x8140, 0x3000, + 0x8141, 0x3001, 0x8142, 0x3002, 0x8143, 0xFF0C, 0x8144, 0xFF0E, 0x8145, 0x30FB, 0x8146, 0xFF1A, 0x8147, 0xFF1B, 0x8148, 0xFF1F, + 0x8149, 0xFF01, 0x814A, 0x309B, 0x814B, 0x309C, 0x814C, 0x00B4, 0x814D, 0xFF40, 0x814E, 0x00A8, 0x814F, 0xFF3E, 0x8150, 0xFFE3, + 0x8151, 0xFF3F, 0x8152, 0x30FD, 0x8153, 0x30FE, 0x8154, 0x309D, 0x8155, 0x309E, 0x8156, 0x3003, 0x8157, 0x4EDD, 0x8158, 0x3005, + 0x8159, 0x3006, 0x815A, 0x3007, 0x815B, 0x30FC, 0x815C, 0x2015, 0x815D, 0x2010, 0x815E, 0xFF0F, 0x815F, 0xFF3C, 0x8160, 0xFF5E, + 0x8161, 0x2225, 0x8162, 0xFF5C, 0x8163, 0x2026, 0x8164, 0x2025, 0x8165, 0x2018, 0x8166, 0x2019, 0x8167, 0x201C, 0x8168, 0x201D, + 0x8169, 0xFF08, 0x816A, 0xFF09, 0x816B, 0x3014, 0x816C, 0x3015, 0x816D, 0xFF3B, 0x816E, 0xFF3D, 0x816F, 0xFF5B, 0x8170, 0xFF5D, + 0x8171, 0x3008, 0x8172, 0x3009, 0x8173, 0x300A, 0x8174, 0x300B, 0x8175, 0x300C, 0x8176, 0x300D, 0x8177, 0x300E, 0x8178, 0x300F, + 0x8179, 0x3010, 0x817A, 0x3011, 0x817B, 0xFF0B, 0x817C, 0xFF0D, 0x817D, 0x00B1, 0x817E, 0x00D7, 0x8180, 0x00F7, 0x8181, 0xFF1D, + 0x8182, 0x2260, 0x8183, 0xFF1C, 0x8184, 0xFF1E, 0x8185, 0x2266, 0x8186, 0x2267, 0x8187, 0x221E, 0x8188, 0x2234, 0x8189, 0x2642, + 0x818A, 0x2640, 0x818B, 0x00B0, 0x818C, 0x2032, 0x818D, 0x2033, 0x818E, 0x2103, 0x818F, 0xFFE5, 0x8190, 0xFF04, 0x8191, 0xFFE0, + 0x8192, 0xFFE1, 0x8193, 0xFF05, 0x8194, 0xFF03, 0x8195, 0xFF06, 0x8196, 0xFF0A, 0x8197, 0xFF20, 0x8198, 0x00A7, 0x8199, 0x2606, + 0x819A, 0x2605, 0x819B, 0x25CB, 0x819C, 0x25CF, 0x819D, 0x25CE, 0x819E, 0x25C7, 0x819F, 0x25C6, 0x81A0, 0x25A1, 0x81A1, 0x25A0, + 0x81A2, 0x25B3, 0x81A3, 0x25B2, 0x81A4, 0x25BD, 0x81A5, 0x25BC, 0x81A6, 0x203B, 0x81A7, 0x3012, 0x81A8, 0x2192, 0x81A9, 0x2190, + 0x81AA, 0x2191, 0x81AB, 0x2193, 0x81AC, 0x3013, 0x81B8, 0x2208, 0x81B9, 0x220B, 0x81BA, 0x2286, 0x81BB, 0x2287, 0x81BC, 0x2282, + 0x81BD, 0x2283, 0x81BE, 0x222A, 0x81BF, 0x2229, 0x81C8, 0x2227, 0x81C9, 0x2228, 0x81CA, 0xFFE2, 0x81CB, 0x21D2, 0x81CC, 0x21D4, + 0x81CD, 0x2200, 0x81CE, 0x2203, 0x81DA, 0x2220, 0x81DB, 0x22A5, 0x81DC, 0x2312, 0x81DD, 0x2202, 0x81DE, 0x2207, 0x81DF, 0x2261, + 0x81E0, 0x2252, 0x81E1, 0x226A, 0x81E2, 0x226B, 0x81E3, 0x221A, 0x81E4, 0x223D, 0x81E5, 0x221D, 0x81E6, 0x2235, 0x81E7, 0x222B, + 0x81E8, 0x222C, 0x81F0, 0x212B, 0x81F1, 0x2030, 0x81F2, 0x266F, 0x81F3, 0x266D, 0x81F4, 0x266A, 0x81F5, 0x2020, 0x81F6, 0x2021, + 0x81F7, 0x00B6, 0x81FC, 0x25EF, 0x824F, 0xFF10, 0x8250, 0xFF11, 0x8251, 0xFF12, 0x8252, 0xFF13, 0x8253, 0xFF14, 0x8254, 0xFF15, + 0x8255, 0xFF16, 0x8256, 0xFF17, 0x8257, 0xFF18, 0x8258, 0xFF19, 0x8260, 0xFF21, 0x8261, 0xFF22, 0x8262, 0xFF23, 0x8263, 0xFF24, + 0x8264, 0xFF25, 0x8265, 0xFF26, 0x8266, 0xFF27, 0x8267, 0xFF28, 0x8268, 0xFF29, 0x8269, 0xFF2A, 0x826A, 0xFF2B, 0x826B, 0xFF2C, + 0x826C, 0xFF2D, 0x826D, 0xFF2E, 0x826E, 0xFF2F, 0x826F, 0xFF30, 0x8270, 0xFF31, 0x8271, 0xFF32, 0x8272, 0xFF33, 0x8273, 0xFF34, + 0x8274, 0xFF35, 0x8275, 0xFF36, 0x8276, 0xFF37, 0x8277, 0xFF38, 0x8278, 0xFF39, 0x8279, 0xFF3A, 0x8281, 0xFF41, 0x8282, 0xFF42, + 0x8283, 0xFF43, 0x8284, 0xFF44, 0x8285, 0xFF45, 0x8286, 0xFF46, 0x8287, 0xFF47, 0x8288, 0xFF48, 0x8289, 0xFF49, 0x828A, 0xFF4A, + 0x828B, 0xFF4B, 0x828C, 0xFF4C, 0x828D, 0xFF4D, 0x828E, 0xFF4E, 0x828F, 0xFF4F, 0x8290, 0xFF50, 0x8291, 0xFF51, 0x8292, 0xFF52, + 0x8293, 0xFF53, 0x8294, 0xFF54, 0x8295, 0xFF55, 0x8296, 0xFF56, 0x8297, 0xFF57, 0x8298, 0xFF58, 0x8299, 0xFF59, 0x829A, 0xFF5A, + 0x829F, 0x3041, 0x82A0, 0x3042, 0x82A1, 0x3043, 0x82A2, 0x3044, 0x82A3, 0x3045, 0x82A4, 0x3046, 0x82A5, 0x3047, 0x82A6, 0x3048, + 0x82A7, 0x3049, 0x82A8, 0x304A, 0x82A9, 0x304B, 0x82AA, 0x304C, 0x82AB, 0x304D, 0x82AC, 0x304E, 0x82AD, 0x304F, 0x82AE, 0x3050, + 0x82AF, 0x3051, 0x82B0, 0x3052, 0x82B1, 0x3053, 0x82B2, 0x3054, 0x82B3, 0x3055, 0x82B4, 0x3056, 0x82B5, 0x3057, 0x82B6, 0x3058, + 0x82B7, 0x3059, 0x82B8, 0x305A, 0x82B9, 0x305B, 0x82BA, 0x305C, 0x82BB, 0x305D, 0x82BC, 0x305E, 0x82BD, 0x305F, 0x82BE, 0x3060, + 0x82BF, 0x3061, 0x82C0, 0x3062, 0x82C1, 0x3063, 0x82C2, 0x3064, 0x82C3, 0x3065, 0x82C4, 0x3066, 0x82C5, 0x3067, 0x82C6, 0x3068, + 0x82C7, 0x3069, 0x82C8, 0x306A, 0x82C9, 0x306B, 0x82CA, 0x306C, 0x82CB, 0x306D, 0x82CC, 0x306E, 0x82CD, 0x306F, 0x82CE, 0x3070, + 0x82CF, 0x3071, 0x82D0, 0x3072, 0x82D1, 0x3073, 0x82D2, 0x3074, 0x82D3, 0x3075, 0x82D4, 0x3076, 0x82D5, 0x3077, 0x82D6, 0x3078, + 0x82D7, 0x3079, 0x82D8, 0x307A, 0x82D9, 0x307B, 0x82DA, 0x307C, 0x82DB, 0x307D, 0x82DC, 0x307E, 0x82DD, 0x307F, 0x82DE, 0x3080, + 0x82DF, 0x3081, 0x82E0, 0x3082, 0x82E1, 0x3083, 0x82E2, 0x3084, 0x82E3, 0x3085, 0x82E4, 0x3086, 0x82E5, 0x3087, 0x82E6, 0x3088, + 0x82E7, 0x3089, 0x82E8, 0x308A, 0x82E9, 0x308B, 0x82EA, 0x308C, 0x82EB, 0x308D, 0x82EC, 0x308E, 0x82ED, 0x308F, 0x82EE, 0x3090, + 0x82EF, 0x3091, 0x82F0, 0x3092, 0x82F1, 0x3093, 0x8340, 0x30A1, 0x8341, 0x30A2, 0x8342, 0x30A3, 0x8343, 0x30A4, 0x8344, 0x30A5, + 0x8345, 0x30A6, 0x8346, 0x30A7, 0x8347, 0x30A8, 0x8348, 0x30A9, 0x8349, 0x30AA, 0x834A, 0x30AB, 0x834B, 0x30AC, 0x834C, 0x30AD, + 0x834D, 0x30AE, 0x834E, 0x30AF, 0x834F, 0x30B0, 0x8350, 0x30B1, 0x8351, 0x30B2, 0x8352, 0x30B3, 0x8353, 0x30B4, 0x8354, 0x30B5, + 0x8355, 0x30B6, 0x8356, 0x30B7, 0x8357, 0x30B8, 0x8358, 0x30B9, 0x8359, 0x30BA, 0x835A, 0x30BB, 0x835B, 0x30BC, 0x835C, 0x30BD, + 0x835D, 0x30BE, 0x835E, 0x30BF, 0x835F, 0x30C0, 0x8360, 0x30C1, 0x8361, 0x30C2, 0x8362, 0x30C3, 0x8363, 0x30C4, 0x8364, 0x30C5, + 0x8365, 0x30C6, 0x8366, 0x30C7, 0x8367, 0x30C8, 0x8368, 0x30C9, 0x8369, 0x30CA, 0x836A, 0x30CB, 0x836B, 0x30CC, 0x836C, 0x30CD, + 0x836D, 0x30CE, 0x836E, 0x30CF, 0x836F, 0x30D0, 0x8370, 0x30D1, 0x8371, 0x30D2, 0x8372, 0x30D3, 0x8373, 0x30D4, 0x8374, 0x30D5, + 0x8375, 0x30D6, 0x8376, 0x30D7, 0x8377, 0x30D8, 0x8378, 0x30D9, 0x8379, 0x30DA, 0x837A, 0x30DB, 0x837B, 0x30DC, 0x837C, 0x30DD, + 0x837D, 0x30DE, 0x837E, 0x30DF, 0x8380, 0x30E0, 0x8381, 0x30E1, 0x8382, 0x30E2, 0x8383, 0x30E3, 0x8384, 0x30E4, 0x8385, 0x30E5, + 0x8386, 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0x9DE6, + 0xEA5C, 0x9DED, 0xEA5D, 0x9DEF, 0xEA5E, 0x9DFD, 0xEA5F, 0x9E1A, 0xEA60, 0x9E1B, 0xEA61, 0x9E1E, 0xEA62, 0x9E75, 0xEA63, 0x9E79, + 0xEA64, 0x9E7D, 0xEA65, 0x9E81, 0xEA66, 0x9E88, 0xEA67, 0x9E8B, 0xEA68, 0x9E8C, 0xEA69, 0x9E92, 0xEA6A, 0x9E95, 0xEA6B, 0x9E91, + 0xEA6C, 0x9E9D, 0xEA6D, 0x9EA5, 0xEA6E, 0x9EA9, 0xEA6F, 0x9EB8, 0xEA70, 0x9EAA, 0xEA71, 0x9EAD, 0xEA72, 0x9761, 0xEA73, 0x9ECC, + 0xEA74, 0x9ECE, 0xEA75, 0x9ECF, 0xEA76, 0x9ED0, 0xEA77, 0x9ED4, 0xEA78, 0x9EDC, 0xEA79, 0x9EDE, 0xEA7A, 0x9EDD, 0xEA7B, 0x9EE0, + 0xEA7C, 0x9EE5, 0xEA7D, 0x9EE8, 0xEA7E, 0x9EEF, 0xEA80, 0x9EF4, 0xEA81, 0x9EF6, 0xEA82, 0x9EF7, 0xEA83, 0x9EF9, 0xEA84, 0x9EFB, + 0xEA85, 0x9EFC, 0xEA86, 0x9EFD, 0xEA87, 0x9F07, 0xEA88, 0x9F08, 0xEA89, 0x76B7, 0xEA8A, 0x9F15, 0xEA8B, 0x9F21, 0xEA8C, 0x9F2C, + 0xEA8D, 0x9F3E, 0xEA8E, 0x9F4A, 0xEA8F, 0x9F52, 0xEA90, 0x9F54, 0xEA91, 0x9F63, 0xEA92, 0x9F5F, 0xEA93, 0x9F60, 0xEA94, 0x9F61, + 0xEA95, 0x9F66, 0xEA96, 0x9F67, 0xEA97, 0x9F6C, 0xEA98, 0x9F6A, 0xEA99, 0x9F77, 0xEA9A, 0x9F72, 0xEA9B, 0x9F76, 0xEA9C, 0x9F95, + 0xEA9D, 0x9F9C, 0xEA9E, 0x9FA0, 0xEA9F, 0x582F, 0xEAA0, 0x69C7, 0xEAA1, 0x9059, 0xEAA2, 0x7464, 0xEAA3, 0x51DC, 0xEAA4, 0x7199, + 0xFA40, 0x2170, 0xFA41, 0x2171, 0xFA42, 0x2172, 0xFA43, 0x2173, 0xFA44, 0x2174, 0xFA45, 0x2175, 0xFA46, 0x2176, 0xFA47, 0x2177, + 0xFA48, 0x2178, 0xFA49, 0x2179, 0xFA55, 0xFFE4, 0xFA56, 0xFF07, 0xFA57, 0xFF02, 0xFA5C, 0x7E8A, 0xFA5D, 0x891C, 0xFA5E, 0x9348, + 0xFA5F, 0x9288, 0xFA60, 0x84DC, 0xFA61, 0x4FC9, 0xFA62, 0x70BB, 0xFA63, 0x6631, 0xFA64, 0x68C8, 0xFA65, 0x92F9, 0xFA66, 0x66FB, + 0xFA67, 0x5F45, 0xFA68, 0x4E28, 0xFA69, 0x4EE1, 0xFA6A, 0x4EFC, 0xFA6B, 0x4F00, 0xFA6C, 0x4F03, 0xFA6D, 0x4F39, 0xFA6E, 0x4F56, + 0xFA6F, 0x4F92, 0xFA70, 0x4F8A, 0xFA71, 0x4F9A, 0xFA72, 0x4F94, 0xFA73, 0x4FCD, 0xFA74, 0x5040, 0xFA75, 0x5022, 0xFA76, 0x4FFF, + 0xFA77, 0x501E, 0xFA78, 0x5046, 0xFA79, 0x5070, 0xFA7A, 0x5042, 0xFA7B, 0x5094, 0xFA7C, 0x50F4, 0xFA7D, 0x50D8, 0xFA7E, 0x514A, + 0xFA80, 0x5164, 0xFA81, 0x519D, 0xFA82, 0x51BE, 0xFA83, 0x51EC, 0xFA84, 0x5215, 0xFA85, 0x529C, 0xFA86, 0x52A6, 0xFA87, 0x52C0, + 0xFA88, 0x52DB, 0xFA89, 0x5300, 0xFA8A, 0x5307, 0xFA8B, 0x5324, 0xFA8C, 0x5372, 0xFA8D, 0x5393, 0xFA8E, 0x53B2, 0xFA8F, 0x53DD, + 0xFA90, 0xFA0E, 0xFA91, 0x549C, 0xFA92, 0x548A, 0xFA93, 0x54A9, 0xFA94, 0x54FF, 0xFA95, 0x5586, 0xFA96, 0x5759, 0xFA97, 0x5765, + 0xFA98, 0x57AC, 0xFA99, 0x57C8, 0xFA9A, 0x57C7, 0xFA9B, 0xFA0F, 0xFA9C, 0xFA10, 0xFA9D, 0x589E, 0xFA9E, 0x58B2, 0xFA9F, 0x590B, + 0xFAA0, 0x5953, 0xFAA1, 0x595B, 0xFAA2, 0x595D, 0xFAA3, 0x5963, 0xFAA4, 0x59A4, 0xFAA5, 0x59BA, 0xFAA6, 0x5B56, 0xFAA7, 0x5BC0, + 0xFAA8, 0x752F, 0xFAA9, 0x5BD8, 0xFAAA, 0x5BEC, 0xFAAB, 0x5C1E, 0xFAAC, 0x5CA6, 0xFAAD, 0x5CBA, 0xFAAE, 0x5CF5, 0xFAAF, 0x5D27, + 0xFAB0, 0x5D53, 0xFAB1, 0xFA11, 0xFAB2, 0x5D42, 0xFAB3, 0x5D6D, 0xFAB4, 0x5DB8, 0xFAB5, 0x5DB9, 0xFAB6, 0x5DD0, 0xFAB7, 0x5F21, + 0xFAB8, 0x5F34, 0xFAB9, 0x5F67, 0xFABA, 0x5FB7, 0xFABB, 0x5FDE, 0xFABC, 0x605D, 0xFABD, 0x6085, 0xFABE, 0x608A, 0xFABF, 0x60DE, + 0xFAC0, 0x60D5, 0xFAC1, 0x6120, 0xFAC2, 0x60F2, 0xFAC3, 0x6111, 0xFAC4, 0x6137, 0xFAC5, 0x6130, 0xFAC6, 0x6198, 0xFAC7, 0x6213, + 0xFAC8, 0x62A6, 0xFAC9, 0x63F5, 0xFACA, 0x6460, 0xFACB, 0x649D, 0xFACC, 0x64CE, 0xFACD, 0x654E, 0xFACE, 0x6600, 0xFACF, 0x6615, + 0xFAD0, 0x663B, 0xFAD1, 0x6609, 0xFAD2, 0x662E, 0xFAD3, 0x661E, 0xFAD4, 0x6624, 0xFAD5, 0x6665, 0xFAD6, 0x6657, 0xFAD7, 0x6659, + 0xFAD8, 0xFA12, 0xFAD9, 0x6673, 0xFADA, 0x6699, 0xFADB, 0x66A0, 0xFADC, 0x66B2, 0xFADD, 0x66BF, 0xFADE, 0x66FA, 0xFADF, 0x670E, + 0xFAE0, 0xF929, 0xFAE1, 0x6766, 0xFAE2, 0x67BB, 0xFAE3, 0x6852, 0xFAE4, 0x67C0, 0xFAE5, 0x6801, 0xFAE6, 0x6844, 0xFAE7, 0x68CF, + 0xFAE8, 0xFA13, 0xFAE9, 0x6968, 0xFAEA, 0xFA14, 0xFAEB, 0x6998, 0xFAEC, 0x69E2, 0xFAED, 0x6A30, 0xFAEE, 0x6A6B, 0xFAEF, 0x6A46, + 0xFAF0, 0x6A73, 0xFAF1, 0x6A7E, 0xFAF2, 0x6AE2, 0xFAF3, 0x6AE4, 0xFAF4, 0x6BD6, 0xFAF5, 0x6C3F, 0xFAF6, 0x6C5C, 0xFAF7, 0x6C86, + 0xFAF8, 0x6C6F, 0xFAF9, 0x6CDA, 0xFAFA, 0x6D04, 0xFAFB, 0x6D87, 0xFAFC, 0x6D6F, 0xFB40, 0x6D96, 0xFB41, 0x6DAC, 0xFB42, 0x6DCF, + 0xFB43, 0x6DF8, 0xFB44, 0x6DF2, 0xFB45, 0x6DFC, 0xFB46, 0x6E39, 0xFB47, 0x6E5C, 0xFB48, 0x6E27, 0xFB49, 0x6E3C, 0xFB4A, 0x6EBF, + 0xFB4B, 0x6F88, 0xFB4C, 0x6FB5, 0xFB4D, 0x6FF5, 0xFB4E, 0x7005, 0xFB4F, 0x7007, 0xFB50, 0x7028, 0xFB51, 0x7085, 0xFB52, 0x70AB, + 0xFB53, 0x710F, 0xFB54, 0x7104, 0xFB55, 0x715C, 0xFB56, 0x7146, 0xFB57, 0x7147, 0xFB58, 0xFA15, 0xFB59, 0x71C1, 0xFB5A, 0x71FE, + 0xFB5B, 0x72B1, 0xFB5C, 0x72BE, 0xFB5D, 0x7324, 0xFB5E, 0xFA16, 0xFB5F, 0x7377, 0xFB60, 0x73BD, 0xFB61, 0x73C9, 0xFB62, 0x73D6, + 0xFB63, 0x73E3, 0xFB64, 0x73D2, 0xFB65, 0x7407, 0xFB66, 0x73F5, 0xFB67, 0x7426, 0xFB68, 0x742A, 0xFB69, 0x7429, 0xFB6A, 0x742E, + 0xFB6B, 0x7462, 0xFB6C, 0x7489, 0xFB6D, 0x749F, 0xFB6E, 0x7501, 0xFB6F, 0x756F, 0xFB70, 0x7682, 0xFB71, 0x769C, 0xFB72, 0x769E, + 0xFB73, 0x769B, 0xFB74, 0x76A6, 0xFB75, 0xFA17, 0xFB76, 0x7746, 0xFB77, 0x52AF, 0xFB78, 0x7821, 0xFB79, 0x784E, 0xFB7A, 0x7864, + 0xFB7B, 0x787A, 0xFB7C, 0x7930, 0xFB7D, 0xFA18, 0xFB7E, 0xFA19, 0xFB80, 0xFA1A, 0xFB81, 0x7994, 0xFB82, 0xFA1B, 0xFB83, 0x799B, + 0xFB84, 0x7AD1, 0xFB85, 0x7AE7, 0xFB86, 0xFA1C, 0xFB87, 0x7AEB, 0xFB88, 0x7B9E, 0xFB89, 0xFA1D, 0xFB8A, 0x7D48, 0xFB8B, 0x7D5C, + 0xFB8C, 0x7DB7, 0xFB8D, 0x7DA0, 0xFB8E, 0x7DD6, 0xFB8F, 0x7E52, 0xFB90, 0x7F47, 0xFB91, 0x7FA1, 0xFB92, 0xFA1E, 0xFB93, 0x8301, + 0xFB94, 0x8362, 0xFB95, 0x837F, 0xFB96, 0x83C7, 0xFB97, 0x83F6, 0xFB98, 0x8448, 0xFB99, 0x84B4, 0xFB9A, 0x8553, 0xFB9B, 0x8559, + 0xFB9C, 0x856B, 0xFB9D, 0xFA1F, 0xFB9E, 0x85B0, 0xFB9F, 0xFA20, 0xFBA0, 0xFA21, 0xFBA1, 0x8807, 0xFBA2, 0x88F5, 0xFBA3, 0x8A12, + 0xFBA4, 0x8A37, 0xFBA5, 0x8A79, 0xFBA6, 0x8AA7, 0xFBA7, 0x8ABE, 0xFBA8, 0x8ADF, 0xFBA9, 0xFA22, 0xFBAA, 0x8AF6, 0xFBAB, 0x8B53, + 0xFBAC, 0x8B7F, 0xFBAD, 0x8CF0, 0xFBAE, 0x8CF4, 0xFBAF, 0x8D12, 0xFBB0, 0x8D76, 0xFBB1, 0xFA23, 0xFBB2, 0x8ECF, 0xFBB3, 0xFA24, + 0xFBB4, 0xFA25, 0xFBB5, 0x9067, 0xFBB6, 0x90DE, 0xFBB7, 0xFA26, 0xFBB8, 0x9115, 0xFBB9, 0x9127, 0xFBBA, 0x91DA, 0xFBBB, 0x91D7, + 0xFBBC, 0x91DE, 0xFBBD, 0x91ED, 0xFBBE, 0x91EE, 0xFBBF, 0x91E4, 0xFBC0, 0x91E5, 0xFBC1, 0x9206, 0xFBC2, 0x9210, 0xFBC3, 0x920A, + 0xFBC4, 0x923A, 0xFBC5, 0x9240, 0xFBC6, 0x923C, 0xFBC7, 0x924E, 0xFBC8, 0x9259, 0xFBC9, 0x9251, 0xFBCA, 0x9239, 0xFBCB, 0x9267, + 0xFBCC, 0x92A7, 0xFBCD, 0x9277, 0xFBCE, 0x9278, 0xFBCF, 0x92E7, 0xFBD0, 0x92D7, 0xFBD1, 0x92D9, 0xFBD2, 0x92D0, 0xFBD3, 0xFA27, + 0xFBD4, 0x92D5, 0xFBD5, 0x92E0, 0xFBD6, 0x92D3, 0xFBD7, 0x9325, 0xFBD8, 0x9321, 0xFBD9, 0x92FB, 0xFBDA, 0xFA28, 0xFBDB, 0x931E, + 0xFBDC, 0x92FF, 0xFBDD, 0x931D, 0xFBDE, 0x9302, 0xFBDF, 0x9370, 0xFBE0, 0x9357, 0xFBE1, 0x93A4, 0xFBE2, 0x93C6, 0xFBE3, 0x93DE, + 0xFBE4, 0x93F8, 0xFBE5, 0x9431, 0xFBE6, 0x9445, 0xFBE7, 0x9448, 0xFBE8, 0x9592, 0xFBE9, 0xF9DC, 0xFBEA, 0xFA29, 0xFBEB, 0x969D, + 0xFBEC, 0x96AF, 0xFBED, 0x9733, 0xFBEE, 0x973B, 0xFBEF, 0x9743, 0xFBF0, 0x974D, 0xFBF1, 0x974F, 0xFBF2, 0x9751, 0xFBF3, 0x9755, + 0xFBF4, 0x9857, 0xFBF5, 0x9865, 0xFBF6, 0xFA2A, 0xFBF7, 0xFA2B, 0xFBF8, 0x9927, 0xFBF9, 0xFA2C, 0xFBFA, 0x999E, 0xFBFB, 0x9A4E, + 0xFBFC, 0x9AD9, 0xFC40, 0x9ADC, 0xFC41, 0x9B75, 0xFC42, 0x9B72, 0xFC43, 0x9B8F, 0xFC44, 0x9BB1, 0xFC45, 0x9BBB, 0xFC46, 0x9C00, + 0xFC47, 0x9D70, 0xFC48, 0x9D6B, 0xFC49, 0xFA2D, 0xFC4A, 0x9E19, 0xFC4B, 0x9ED1, 0, 0 +}; +#endif + +#if FF_CODE_PAGE == 936 || FF_CODE_PAGE == 0 /* Simplified Chinese */ +static const WCHAR uni2oem936[] = { /* Unicode --> GBK pairs */ + 0x00A4, 0xA1E8, 0x00A7, 0xA1EC, 0x00A8, 0xA1A7, 0x00B0, 0xA1E3, 0x00B1, 0xA1C0, 0x00B7, 0xA1A4, 0x00D7, 0xA1C1, 0x00E0, 0xA8A4, + 0x00E1, 0xA8A2, 0x00E8, 0xA8A8, 0x00E9, 0xA8A6, 0x00EA, 0xA8BA, 0x00EC, 0xA8AC, 0x00ED, 0xA8AA, 0x00F2, 0xA8B0, 0x00F3, 0xA8AE, + 0x00F7, 0xA1C2, 0x00F9, 0xA8B4, 0x00FA, 0xA8B2, 0x00FC, 0xA8B9, 0x0101, 0xA8A1, 0x0113, 0xA8A5, 0x011B, 0xA8A7, 0x012B, 0xA8A9, + 0x0144, 0xA8BD, 0x0148, 0xA8BE, 0x014D, 0xA8AD, 0x016B, 0xA8B1, 0x01CE, 0xA8A3, 0x01D0, 0xA8AB, 0x01D2, 0xA8AF, 0x01D4, 0xA8B3, + 0x01D6, 0xA8B5, 0x01D8, 0xA8B6, 0x01DA, 0xA8B7, 0x01DC, 0xA8B8, 0x0251, 0xA8BB, 0x0261, 0xA8C0, 0x02C7, 0xA1A6, 0x02C9, 0xA1A5, + 0x02CA, 0xA840, 0x02CB, 0xA841, 0x02D9, 0xA842, 0x0391, 0xA6A1, 0x0392, 0xA6A2, 0x0393, 0xA6A3, 0x0394, 0xA6A4, 0x0395, 0xA6A5, + 0x0396, 0xA6A6, 0x0397, 0xA6A7, 0x0398, 0xA6A8, 0x0399, 0xA6A9, 0x039A, 0xA6AA, 0x039B, 0xA6AB, 0x039C, 0xA6AC, 0x039D, 0xA6AD, + 0x039E, 0xA6AE, 0x039F, 0xA6AF, 0x03A0, 0xA6B0, 0x03A1, 0xA6B1, 0x03A3, 0xA6B2, 0x03A4, 0xA6B3, 0x03A5, 0xA6B4, 0x03A6, 0xA6B5, + 0x03A7, 0xA6B6, 0x03A8, 0xA6B7, 0x03A9, 0xA6B8, 0x03B1, 0xA6C1, 0x03B2, 0xA6C2, 0x03B3, 0xA6C3, 0x03B4, 0xA6C4, 0x03B5, 0xA6C5, + 0x03B6, 0xA6C6, 0x03B7, 0xA6C7, 0x03B8, 0xA6C8, 0x03B9, 0xA6C9, 0x03BA, 0xA6CA, 0x03BB, 0xA6CB, 0x03BC, 0xA6CC, 0x03BD, 0xA6CD, + 0x03BE, 0xA6CE, 0x03BF, 0xA6CF, 0x03C0, 0xA6D0, 0x03C1, 0xA6D1, 0x03C3, 0xA6D2, 0x03C4, 0xA6D3, 0x03C5, 0xA6D4, 0x03C6, 0xA6D5, + 0x03C7, 0xA6D6, 0x03C8, 0xA6D7, 0x03C9, 0xA6D8, 0x0401, 0xA7A7, 0x0410, 0xA7A1, 0x0411, 0xA7A2, 0x0412, 0xA7A3, 0x0413, 0xA7A4, + 0x0414, 0xA7A5, 0x0415, 0xA7A6, 0x0416, 0xA7A8, 0x0417, 0xA7A9, 0x0418, 0xA7AA, 0x0419, 0xA7AB, 0x041A, 0xA7AC, 0x041B, 0xA7AD, + 0x041C, 0xA7AE, 0x041D, 0xA7AF, 0x041E, 0xA7B0, 0x041F, 0xA7B1, 0x0420, 0xA7B2, 0x0421, 0xA7B3, 0x0422, 0xA7B4, 0x0423, 0xA7B5, + 0x0424, 0xA7B6, 0x0425, 0xA7B7, 0x0426, 0xA7B8, 0x0427, 0xA7B9, 0x0428, 0xA7BA, 0x0429, 0xA7BB, 0x042A, 0xA7BC, 0x042B, 0xA7BD, + 0x042C, 0xA7BE, 0x042D, 0xA7BF, 0x042E, 0xA7C0, 0x042F, 0xA7C1, 0x0430, 0xA7D1, 0x0431, 0xA7D2, 0x0432, 0xA7D3, 0x0433, 0xA7D4, + 0x0434, 0xA7D5, 0x0435, 0xA7D6, 0x0436, 0xA7D8, 0x0437, 0xA7D9, 0x0438, 0xA7DA, 0x0439, 0xA7DB, 0x043A, 0xA7DC, 0x043B, 0xA7DD, + 0x043C, 0xA7DE, 0x043D, 0xA7DF, 0x043E, 0xA7E0, 0x043F, 0xA7E1, 0x0440, 0xA7E2, 0x0441, 0xA7E3, 0x0442, 0xA7E4, 0x0443, 0xA7E5, + 0x0444, 0xA7E6, 0x0445, 0xA7E7, 0x0446, 0xA7E8, 0x0447, 0xA7E9, 0x0448, 0xA7EA, 0x0449, 0xA7EB, 0x044A, 0xA7EC, 0x044B, 0xA7ED, + 0x044C, 0xA7EE, 0x044D, 0xA7EF, 0x044E, 0xA7F0, 0x044F, 0xA7F1, 0x0451, 0xA7D7, 0x2010, 0xA95C, 0x2013, 0xA843, 0x2014, 0xA1AA, + 0x2015, 0xA844, 0x2016, 0xA1AC, 0x2018, 0xA1AE, 0x2019, 0xA1AF, 0x201C, 0xA1B0, 0x201D, 0xA1B1, 0x2025, 0xA845, 0x2026, 0xA1AD, + 0x2030, 0xA1EB, 0x2032, 0xA1E4, 0x2033, 0xA1E5, 0x2035, 0xA846, 0x203B, 0xA1F9, 0x20AC, 0x0080, 0x2103, 0xA1E6, 0x2105, 0xA847, + 0x2109, 0xA848, 0x2116, 0xA1ED, 0x2121, 0xA959, 0x2160, 0xA2F1, 0x2161, 0xA2F2, 0x2162, 0xA2F3, 0x2163, 0xA2F4, 0x2164, 0xA2F5, + 0x2165, 0xA2F6, 0x2166, 0xA2F7, 0x2167, 0xA2F8, 0x2168, 0xA2F9, 0x2169, 0xA2FA, 0x216A, 0xA2FB, 0x216B, 0xA2FC, 0x2170, 0xA2A1, + 0x2171, 0xA2A2, 0x2172, 0xA2A3, 0x2173, 0xA2A4, 0x2174, 0xA2A5, 0x2175, 0xA2A6, 0x2176, 0xA2A7, 0x2177, 0xA2A8, 0x2178, 0xA2A9, + 0x2179, 0xA2AA, 0x2190, 0xA1FB, 0x2191, 0xA1FC, 0x2192, 0xA1FA, 0x2193, 0xA1FD, 0x2196, 0xA849, 0x2197, 0xA84A, 0x2198, 0xA84B, + 0x2199, 0xA84C, 0x2208, 0xA1CA, 0x220F, 0xA1C7, 0x2211, 0xA1C6, 0x2215, 0xA84D, 0x221A, 0xA1CC, 0x221D, 0xA1D8, 0x221E, 0xA1DE, + 0x221F, 0xA84E, 0x2220, 0xA1CF, 0x2223, 0xA84F, 0x2225, 0xA1CE, 0x2227, 0xA1C4, 0x2228, 0xA1C5, 0x2229, 0xA1C9, 0x222A, 0xA1C8, + 0x222B, 0xA1D2, 0x222E, 0xA1D3, 0x2234, 0xA1E0, 0x2235, 0xA1DF, 0x2236, 0xA1C3, 0x2237, 0xA1CB, 0x223D, 0xA1D7, 0x2248, 0xA1D6, + 0x224C, 0xA1D5, 0x2252, 0xA850, 0x2260, 0xA1D9, 0x2261, 0xA1D4, 0x2264, 0xA1DC, 0x2265, 0xA1DD, 0x2266, 0xA851, 0x2267, 0xA852, + 0x226E, 0xA1DA, 0x226F, 0xA1DB, 0x2295, 0xA892, 0x2299, 0xA1D1, 0x22A5, 0xA1CD, 0x22BF, 0xA853, 0x2312, 0xA1D0, 0x2460, 0xA2D9, + 0x2461, 0xA2DA, 0x2462, 0xA2DB, 0x2463, 0xA2DC, 0x2464, 0xA2DD, 0x2465, 0xA2DE, 0x2466, 0xA2DF, 0x2467, 0xA2E0, 0x2468, 0xA2E1, + 0x2469, 0xA2E2, 0x2474, 0xA2C5, 0x2475, 0xA2C6, 0x2476, 0xA2C7, 0x2477, 0xA2C8, 0x2478, 0xA2C9, 0x2479, 0xA2CA, 0x247A, 0xA2CB, + 0x247B, 0xA2CC, 0x247C, 0xA2CD, 0x247D, 0xA2CE, 0x247E, 0xA2CF, 0x247F, 0xA2D0, 0x2480, 0xA2D1, 0x2481, 0xA2D2, 0x2482, 0xA2D3, + 0x2483, 0xA2D4, 0x2484, 0xA2D5, 0x2485, 0xA2D6, 0x2486, 0xA2D7, 0x2487, 0xA2D8, 0x2488, 0xA2B1, 0x2489, 0xA2B2, 0x248A, 0xA2B3, + 0x248B, 0xA2B4, 0x248C, 0xA2B5, 0x248D, 0xA2B6, 0x248E, 0xA2B7, 0x248F, 0xA2B8, 0x2490, 0xA2B9, 0x2491, 0xA2BA, 0x2492, 0xA2BB, + 0x2493, 0xA2BC, 0x2494, 0xA2BD, 0x2495, 0xA2BE, 0x2496, 0xA2BF, 0x2497, 0xA2C0, 0x2498, 0xA2C1, 0x2499, 0xA2C2, 0x249A, 0xA2C3, + 0x249B, 0xA2C4, 0x2500, 0xA9A4, 0x2501, 0xA9A5, 0x2502, 0xA9A6, 0x2503, 0xA9A7, 0x2504, 0xA9A8, 0x2505, 0xA9A9, 0x2506, 0xA9AA, + 0x2507, 0xA9AB, 0x2508, 0xA9AC, 0x2509, 0xA9AD, 0x250A, 0xA9AE, 0x250B, 0xA9AF, 0x250C, 0xA9B0, 0x250D, 0xA9B1, 0x250E, 0xA9B2, + 0x250F, 0xA9B3, 0x2510, 0xA9B4, 0x2511, 0xA9B5, 0x2512, 0xA9B6, 0x2513, 0xA9B7, 0x2514, 0xA9B8, 0x2515, 0xA9B9, 0x2516, 0xA9BA, + 0x2517, 0xA9BB, 0x2518, 0xA9BC, 0x2519, 0xA9BD, 0x251A, 0xA9BE, 0x251B, 0xA9BF, 0x251C, 0xA9C0, 0x251D, 0xA9C1, 0x251E, 0xA9C2, + 0x251F, 0xA9C3, 0x2520, 0xA9C4, 0x2521, 0xA9C5, 0x2522, 0xA9C6, 0x2523, 0xA9C7, 0x2524, 0xA9C8, 0x2525, 0xA9C9, 0x2526, 0xA9CA, + 0x2527, 0xA9CB, 0x2528, 0xA9CC, 0x2529, 0xA9CD, 0x252A, 0xA9CE, 0x252B, 0xA9CF, 0x252C, 0xA9D0, 0x252D, 0xA9D1, 0x252E, 0xA9D2, + 0x252F, 0xA9D3, 0x2530, 0xA9D4, 0x2531, 0xA9D5, 0x2532, 0xA9D6, 0x2533, 0xA9D7, 0x2534, 0xA9D8, 0x2535, 0xA9D9, 0x2536, 0xA9DA, + 0x2537, 0xA9DB, 0x2538, 0xA9DC, 0x2539, 0xA9DD, 0x253A, 0xA9DE, 0x253B, 0xA9DF, 0x253C, 0xA9E0, 0x253D, 0xA9E1, 0x253E, 0xA9E2, + 0x253F, 0xA9E3, 0x2540, 0xA9E4, 0x2541, 0xA9E5, 0x2542, 0xA9E6, 0x2543, 0xA9E7, 0x2544, 0xA9E8, 0x2545, 0xA9E9, 0x2546, 0xA9EA, + 0x2547, 0xA9EB, 0x2548, 0xA9EC, 0x2549, 0xA9ED, 0x254A, 0xA9EE, 0x254B, 0xA9EF, 0x2550, 0xA854, 0x2551, 0xA855, 0x2552, 0xA856, + 0x2553, 0xA857, 0x2554, 0xA858, 0x2555, 0xA859, 0x2556, 0xA85A, 0x2557, 0xA85B, 0x2558, 0xA85C, 0x2559, 0xA85D, 0x255A, 0xA85E, + 0x255B, 0xA85F, 0x255C, 0xA860, 0x255D, 0xA861, 0x255E, 0xA862, 0x255F, 0xA863, 0x2560, 0xA864, 0x2561, 0xA865, 0x2562, 0xA866, + 0x2563, 0xA867, 0x2564, 0xA868, 0x2565, 0xA869, 0x2566, 0xA86A, 0x2567, 0xA86B, 0x2568, 0xA86C, 0x2569, 0xA86D, 0x256A, 0xA86E, + 0x256B, 0xA86F, 0x256C, 0xA870, 0x256D, 0xA871, 0x256E, 0xA872, 0x256F, 0xA873, 0x2570, 0xA874, 0x2571, 0xA875, 0x2572, 0xA876, + 0x2573, 0xA877, 0x2581, 0xA878, 0x2582, 0xA879, 0x2583, 0xA87A, 0x2584, 0xA87B, 0x2585, 0xA87C, 0x2586, 0xA87D, 0x2587, 0xA87E, + 0x2588, 0xA880, 0x2589, 0xA881, 0x258A, 0xA882, 0x258B, 0xA883, 0x258C, 0xA884, 0x258D, 0xA885, 0x258E, 0xA886, 0x258F, 0xA887, + 0x2593, 0xA888, 0x2594, 0xA889, 0x2595, 0xA88A, 0x25A0, 0xA1F6, 0x25A1, 0xA1F5, 0x25B2, 0xA1F8, 0x25B3, 0xA1F7, 0x25BC, 0xA88B, + 0x25BD, 0xA88C, 0x25C6, 0xA1F4, 0x25C7, 0xA1F3, 0x25CB, 0xA1F0, 0x25CE, 0xA1F2, 0x25CF, 0xA1F1, 0x25E2, 0xA88D, 0x25E3, 0xA88E, + 0x25E4, 0xA88F, 0x25E5, 0xA890, 0x2605, 0xA1EF, 0x2606, 0xA1EE, 0x2609, 0xA891, 0x2640, 0xA1E2, 0x2642, 0xA1E1, 0x3000, 0xA1A1, + 0x3001, 0xA1A2, 0x3002, 0xA1A3, 0x3003, 0xA1A8, 0x3005, 0xA1A9, 0x3006, 0xA965, 0x3007, 0xA996, 0x3008, 0xA1B4, 0x3009, 0xA1B5, + 0x300A, 0xA1B6, 0x300B, 0xA1B7, 0x300C, 0xA1B8, 0x300D, 0xA1B9, 0x300E, 0xA1BA, 0x300F, 0xA1BB, 0x3010, 0xA1BE, 0x3011, 0xA1BF, + 0x3012, 0xA893, 0x3013, 0xA1FE, 0x3014, 0xA1B2, 0x3015, 0xA1B3, 0x3016, 0xA1BC, 0x3017, 0xA1BD, 0x301D, 0xA894, 0x301E, 0xA895, + 0x3021, 0xA940, 0x3022, 0xA941, 0x3023, 0xA942, 0x3024, 0xA943, 0x3025, 0xA944, 0x3026, 0xA945, 0x3027, 0xA946, 0x3028, 0xA947, + 0x3029, 0xA948, 0x3041, 0xA4A1, 0x3042, 0xA4A2, 0x3043, 0xA4A3, 0x3044, 0xA4A4, 0x3045, 0xA4A5, 0x3046, 0xA4A6, 0x3047, 0xA4A7, + 0x3048, 0xA4A8, 0x3049, 0xA4A9, 0x304A, 0xA4AA, 0x304B, 0xA4AB, 0x304C, 0xA4AC, 0x304D, 0xA4AD, 0x304E, 0xA4AE, 0x304F, 0xA4AF, + 0x3050, 0xA4B0, 0x3051, 0xA4B1, 0x3052, 0xA4B2, 0x3053, 0xA4B3, 0x3054, 0xA4B4, 0x3055, 0xA4B5, 0x3056, 0xA4B6, 0x3057, 0xA4B7, + 0x3058, 0xA4B8, 0x3059, 0xA4B9, 0x305A, 0xA4BA, 0x305B, 0xA4BB, 0x305C, 0xA4BC, 0x305D, 0xA4BD, 0x305E, 0xA4BE, 0x305F, 0xA4BF, + 0x3060, 0xA4C0, 0x3061, 0xA4C1, 0x3062, 0xA4C2, 0x3063, 0xA4C3, 0x3064, 0xA4C4, 0x3065, 0xA4C5, 0x3066, 0xA4C6, 0x3067, 0xA4C7, + 0x3068, 0xA4C8, 0x3069, 0xA4C9, 0x306A, 0xA4CA, 0x306B, 0xA4CB, 0x306C, 0xA4CC, 0x306D, 0xA4CD, 0x306E, 0xA4CE, 0x306F, 0xA4CF, + 0x3070, 0xA4D0, 0x3071, 0xA4D1, 0x3072, 0xA4D2, 0x3073, 0xA4D3, 0x3074, 0xA4D4, 0x3075, 0xA4D5, 0x3076, 0xA4D6, 0x3077, 0xA4D7, + 0x3078, 0xA4D8, 0x3079, 0xA4D9, 0x307A, 0xA4DA, 0x307B, 0xA4DB, 0x307C, 0xA4DC, 0x307D, 0xA4DD, 0x307E, 0xA4DE, 0x307F, 0xA4DF, + 0x3080, 0xA4E0, 0x3081, 0xA4E1, 0x3082, 0xA4E2, 0x3083, 0xA4E3, 0x3084, 0xA4E4, 0x3085, 0xA4E5, 0x3086, 0xA4E6, 0x3087, 0xA4E7, + 0x3088, 0xA4E8, 0x3089, 0xA4E9, 0x308A, 0xA4EA, 0x308B, 0xA4EB, 0x308C, 0xA4EC, 0x308D, 0xA4ED, 0x308E, 0xA4EE, 0x308F, 0xA4EF, + 0x3090, 0xA4F0, 0x3091, 0xA4F1, 0x3092, 0xA4F2, 0x3093, 0xA4F3, 0x309B, 0xA961, 0x309C, 0xA962, 0x309D, 0xA966, 0x309E, 0xA967, + 0x30A1, 0xA5A1, 0x30A2, 0xA5A2, 0x30A3, 0xA5A3, 0x30A4, 0xA5A4, 0x30A5, 0xA5A5, 0x30A6, 0xA5A6, 0x30A7, 0xA5A7, 0x30A8, 0xA5A8, + 0x30A9, 0xA5A9, 0x30AA, 0xA5AA, 0x30AB, 0xA5AB, 0x30AC, 0xA5AC, 0x30AD, 0xA5AD, 0x30AE, 0xA5AE, 0x30AF, 0xA5AF, 0x30B0, 0xA5B0, + 0x30B1, 0xA5B1, 0x30B2, 0xA5B2, 0x30B3, 0xA5B3, 0x30B4, 0xA5B4, 0x30B5, 0xA5B5, 0x30B6, 0xA5B6, 0x30B7, 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0xA3D7, 0xFF38, 0xA3D8, 0xFF39, 0xA3D9, 0xFF3A, 0xA3DA, 0xFF3B, 0xA3DB, 0xFF3C, 0xA3DC, + 0xFF3D, 0xA3DD, 0xFF3E, 0xA3DE, 0xFF3F, 0xA3DF, 0xFF40, 0xA3E0, 0xFF41, 0xA3E1, 0xFF42, 0xA3E2, 0xFF43, 0xA3E3, 0xFF44, 0xA3E4, + 0xFF45, 0xA3E5, 0xFF46, 0xA3E6, 0xFF47, 0xA3E7, 0xFF48, 0xA3E8, 0xFF49, 0xA3E9, 0xFF4A, 0xA3EA, 0xFF4B, 0xA3EB, 0xFF4C, 0xA3EC, + 0xFF4D, 0xA3ED, 0xFF4E, 0xA3EE, 0xFF4F, 0xA3EF, 0xFF50, 0xA3F0, 0xFF51, 0xA3F1, 0xFF52, 0xA3F2, 0xFF53, 0xA3F3, 0xFF54, 0xA3F4, + 0xFF55, 0xA3F5, 0xFF56, 0xA3F6, 0xFF57, 0xA3F7, 0xFF58, 0xA3F8, 0xFF59, 0xA3F9, 0xFF5A, 0xA3FA, 0xFF5B, 0xA3FB, 0xFF5C, 0xA3FC, + 0xFF5D, 0xA3FD, 0xFF5E, 0xA1AB, 0xFFE0, 0xA1E9, 0xFFE1, 0xA1EA, 0xFFE2, 0xA956, 0xFFE3, 0xA3FE, 0xFFE4, 0xA957, 0xFFE5, 0xA3A4, + 0, 0 +}; + +static const WCHAR oem2uni936[] = { /* GBK --> Unicode pairs */ + 0x0080, 0x20AC, 0x8140, 0x4E02, 0x8141, 0x4E04, 0x8142, 0x4E05, 0x8143, 0x4E06, 0x8144, 0x4E0F, 0x8145, 0x4E12, 0x8146, 0x4E17, + 0x8147, 0x4E1F, 0x8148, 0x4E20, 0x8149, 0x4E21, 0x814A, 0x4E23, 0x814B, 0x4E26, 0x814C, 0x4E29, 0x814D, 0x4E2E, 0x814E, 0x4E2F, + 0x814F, 0x4E31, 0x8150, 0x4E33, 0x8151, 0x4E35, 0x8152, 0x4E37, 0x8153, 0x4E3C, 0x8154, 0x4E40, 0x8155, 0x4E41, 0x8156, 0x4E42, + 0x8157, 0x4E44, 0x8158, 0x4E46, 0x8159, 0x4E4A, 0x815A, 0x4E51, 0x815B, 0x4E55, 0x815C, 0x4E57, 0x815D, 0x4E5A, 0x815E, 0x4E5B, + 0x815F, 0x4E62, 0x8160, 0x4E63, 0x8161, 0x4E64, 0x8162, 0x4E65, 0x8163, 0x4E67, 0x8164, 0x4E68, 0x8165, 0x4E6A, 0x8166, 0x4E6B, + 0x8167, 0x4E6C, 0x8168, 0x4E6D, 0x8169, 0x4E6E, 0x816A, 0x4E6F, 0x816B, 0x4E72, 0x816C, 0x4E74, 0x816D, 0x4E75, 0x816E, 0x4E76, + 0x816F, 0x4E77, 0x8170, 0x4E78, 0x8171, 0x4E79, 0x8172, 0x4E7A, 0x8173, 0x4E7B, 0x8174, 0x4E7C, 0x8175, 0x4E7D, 0x8176, 0x4E7F, + 0x8177, 0x4E80, 0x8178, 0x4E81, 0x8179, 0x4E82, 0x817A, 0x4E83, 0x817B, 0x4E84, 0x817C, 0x4E85, 0x817D, 0x4E87, 0x817E, 0x4E8A, + 0x8180, 0x4E90, 0x8181, 0x4E96, 0x8182, 0x4E97, 0x8183, 0x4E99, 0x8184, 0x4E9C, 0x8185, 0x4E9D, 0x8186, 0x4E9E, 0x8187, 0x4EA3, + 0x8188, 0x4EAA, 0x8189, 0x4EAF, 0x818A, 0x4EB0, 0x818B, 0x4EB1, 0x818C, 0x4EB4, 0x818D, 0x4EB6, 0x818E, 0x4EB7, 0x818F, 0x4EB8, + 0x8190, 0x4EB9, 0x8191, 0x4EBC, 0x8192, 0x4EBD, 0x8193, 0x4EBE, 0x8194, 0x4EC8, 0x8195, 0x4ECC, 0x8196, 0x4ECF, 0x8197, 0x4ED0, + 0x8198, 0x4ED2, 0x8199, 0x4EDA, 0x819A, 0x4EDB, 0x819B, 0x4EDC, 0x819C, 0x4EE0, 0x819D, 0x4EE2, 0x819E, 0x4EE6, 0x819F, 0x4EE7, + 0x81A0, 0x4EE9, 0x81A1, 0x4EED, 0x81A2, 0x4EEE, 0x81A3, 0x4EEF, 0x81A4, 0x4EF1, 0x81A5, 0x4EF4, 0x81A6, 0x4EF8, 0x81A7, 0x4EF9, + 0x81A8, 0x4EFA, 0x81A9, 0x4EFC, 0x81AA, 0x4EFE, 0x81AB, 0x4F00, 0x81AC, 0x4F02, 0x81AD, 0x4F03, 0x81AE, 0x4F04, 0x81AF, 0x4F05, + 0x81B0, 0x4F06, 0x81B1, 0x4F07, 0x81B2, 0x4F08, 0x81B3, 0x4F0B, 0x81B4, 0x4F0C, 0x81B5, 0x4F12, 0x81B6, 0x4F13, 0x81B7, 0x4F14, + 0x81B8, 0x4F15, 0x81B9, 0x4F16, 0x81BA, 0x4F1C, 0x81BB, 0x4F1D, 0x81BC, 0x4F21, 0x81BD, 0x4F23, 0x81BE, 0x4F28, 0x81BF, 0x4F29, + 0x81C0, 0x4F2C, 0x81C1, 0x4F2D, 0x81C2, 0x4F2E, 0x81C3, 0x4F31, 0x81C4, 0x4F33, 0x81C5, 0x4F35, 0x81C6, 0x4F37, 0x81C7, 0x4F39, + 0x81C8, 0x4F3B, 0x81C9, 0x4F3E, 0x81CA, 0x4F3F, 0x81CB, 0x4F40, 0x81CC, 0x4F41, 0x81CD, 0x4F42, 0x81CE, 0x4F44, 0x81CF, 0x4F45, + 0x81D0, 0x4F47, 0x81D1, 0x4F48, 0x81D2, 0x4F49, 0x81D3, 0x4F4A, 0x81D4, 0x4F4B, 0x81D5, 0x4F4C, 0x81D6, 0x4F52, 0x81D7, 0x4F54, + 0x81D8, 0x4F56, 0x81D9, 0x4F61, 0x81DA, 0x4F62, 0x81DB, 0x4F66, 0x81DC, 0x4F68, 0x81DD, 0x4F6A, 0x81DE, 0x4F6B, 0x81DF, 0x4F6D, + 0x81E0, 0x4F6E, 0x81E1, 0x4F71, 0x81E2, 0x4F72, 0x81E3, 0x4F75, 0x81E4, 0x4F77, 0x81E5, 0x4F78, 0x81E6, 0x4F79, 0x81E7, 0x4F7A, + 0x81E8, 0x4F7D, 0x81E9, 0x4F80, 0x81EA, 0x4F81, 0x81EB, 0x4F82, 0x81EC, 0x4F85, 0x81ED, 0x4F86, 0x81EE, 0x4F87, 0x81EF, 0x4F8A, + 0x81F0, 0x4F8C, 0x81F1, 0x4F8E, 0x81F2, 0x4F90, 0x81F3, 0x4F92, 0x81F4, 0x4F93, 0x81F5, 0x4F95, 0x81F6, 0x4F96, 0x81F7, 0x4F98, + 0x81F8, 0x4F99, 0x81F9, 0x4F9A, 0x81FA, 0x4F9C, 0x81FB, 0x4F9E, 0x81FC, 0x4F9F, 0x81FD, 0x4FA1, 0x81FE, 0x4FA2, 0x8240, 0x4FA4, + 0x8241, 0x4FAB, 0x8242, 0x4FAD, 0x8243, 0x4FB0, 0x8244, 0x4FB1, 0x8245, 0x4FB2, 0x8246, 0x4FB3, 0x8247, 0x4FB4, 0x8248, 0x4FB6, + 0x8249, 0x4FB7, 0x824A, 0x4FB8, 0x824B, 0x4FB9, 0x824C, 0x4FBA, 0x824D, 0x4FBB, 0x824E, 0x4FBC, 0x824F, 0x4FBD, 0x8250, 0x4FBE, + 0x8251, 0x4FC0, 0x8252, 0x4FC1, 0x8253, 0x4FC2, 0x8254, 0x4FC6, 0x8255, 0x4FC7, 0x8256, 0x4FC8, 0x8257, 0x4FC9, 0x8258, 0x4FCB, + 0x8259, 0x4FCC, 0x825A, 0x4FCD, 0x825B, 0x4FD2, 0x825C, 0x4FD3, 0x825D, 0x4FD4, 0x825E, 0x4FD5, 0x825F, 0x4FD6, 0x8260, 0x4FD9, + 0x8261, 0x4FDB, 0x8262, 0x4FE0, 0x8263, 0x4FE2, 0x8264, 0x4FE4, 0x8265, 0x4FE5, 0x8266, 0x4FE7, 0x8267, 0x4FEB, 0x8268, 0x4FEC, + 0x8269, 0x4FF0, 0x826A, 0x4FF2, 0x826B, 0x4FF4, 0x826C, 0x4FF5, 0x826D, 0x4FF6, 0x826E, 0x4FF7, 0x826F, 0x4FF9, 0x8270, 0x4FFB, + 0x8271, 0x4FFC, 0x8272, 0x4FFD, 0x8273, 0x4FFF, 0x8274, 0x5000, 0x8275, 0x5001, 0x8276, 0x5002, 0x8277, 0x5003, 0x8278, 0x5004, + 0x8279, 0x5005, 0x827A, 0x5006, 0x827B, 0x5007, 0x827C, 0x5008, 0x827D, 0x5009, 0x827E, 0x500A, 0x8280, 0x500B, 0x8281, 0x500E, + 0x8282, 0x5010, 0x8283, 0x5011, 0x8284, 0x5013, 0x8285, 0x5015, 0x8286, 0x5016, 0x8287, 0x5017, 0x8288, 0x501B, 0x8289, 0x501D, + 0x828A, 0x501E, 0x828B, 0x5020, 0x828C, 0x5022, 0x828D, 0x5023, 0x828E, 0x5024, 0x828F, 0x5027, 0x8290, 0x502B, 0x8291, 0x502F, + 0x8292, 0x5030, 0x8293, 0x5031, 0x8294, 0x5032, 0x8295, 0x5033, 0x8296, 0x5034, 0x8297, 0x5035, 0x8298, 0x5036, 0x8299, 0x5037, + 0x829A, 0x5038, 0x829B, 0x5039, 0x829C, 0x503B, 0x829D, 0x503D, 0x829E, 0x503F, 0x829F, 0x5040, 0x82A0, 0x5041, 0x82A1, 0x5042, + 0x82A2, 0x5044, 0x82A3, 0x5045, 0x82A4, 0x5046, 0x82A5, 0x5049, 0x82A6, 0x504A, 0x82A7, 0x504B, 0x82A8, 0x504D, 0x82A9, 0x5050, + 0x82AA, 0x5051, 0x82AB, 0x5052, 0x82AC, 0x5053, 0x82AD, 0x5054, 0x82AE, 0x5056, 0x82AF, 0x5057, 0x82B0, 0x5058, 0x82B1, 0x5059, + 0x82B2, 0x505B, 0x82B3, 0x505D, 0x82B4, 0x505E, 0x82B5, 0x505F, 0x82B6, 0x5060, 0x82B7, 0x5061, 0x82B8, 0x5062, 0x82B9, 0x5063, + 0x82BA, 0x5064, 0x82BB, 0x5066, 0x82BC, 0x5067, 0x82BD, 0x5068, 0x82BE, 0x5069, 0x82BF, 0x506A, 0x82C0, 0x506B, 0x82C1, 0x506D, + 0x82C2, 0x506E, 0x82C3, 0x506F, 0x82C4, 0x5070, 0x82C5, 0x5071, 0x82C6, 0x5072, 0x82C7, 0x5073, 0x82C8, 0x5074, 0x82C9, 0x5075, + 0x82CA, 0x5078, 0x82CB, 0x5079, 0x82CC, 0x507A, 0x82CD, 0x507C, 0x82CE, 0x507D, 0x82CF, 0x5081, 0x82D0, 0x5082, 0x82D1, 0x5083, + 0x82D2, 0x5084, 0x82D3, 0x5086, 0x82D4, 0x5087, 0x82D5, 0x5089, 0x82D6, 0x508A, 0x82D7, 0x508B, 0x82D8, 0x508C, 0x82D9, 0x508E, + 0x82DA, 0x508F, 0x82DB, 0x5090, 0x82DC, 0x5091, 0x82DD, 0x5092, 0x82DE, 0x5093, 0x82DF, 0x5094, 0x82E0, 0x5095, 0x82E1, 0x5096, + 0x82E2, 0x5097, 0x82E3, 0x5098, 0x82E4, 0x5099, 0x82E5, 0x509A, 0x82E6, 0x509B, 0x82E7, 0x509C, 0x82E8, 0x509D, 0x82E9, 0x509E, + 0x82EA, 0x509F, 0x82EB, 0x50A0, 0x82EC, 0x50A1, 0x82ED, 0x50A2, 0x82EE, 0x50A4, 0x82EF, 0x50A6, 0x82F0, 0x50AA, 0x82F1, 0x50AB, + 0x82F2, 0x50AD, 0x82F3, 0x50AE, 0x82F4, 0x50AF, 0x82F5, 0x50B0, 0x82F6, 0x50B1, 0x82F7, 0x50B3, 0x82F8, 0x50B4, 0x82F9, 0x50B5, + 0x82FA, 0x50B6, 0x82FB, 0x50B7, 0x82FC, 0x50B8, 0x82FD, 0x50B9, 0x82FE, 0x50BC, 0x8340, 0x50BD, 0x8341, 0x50BE, 0x8342, 0x50BF, + 0x8343, 0x50C0, 0x8344, 0x50C1, 0x8345, 0x50C2, 0x8346, 0x50C3, 0x8347, 0x50C4, 0x8348, 0x50C5, 0x8349, 0x50C6, 0x834A, 0x50C7, + 0x834B, 0x50C8, 0x834C, 0x50C9, 0x834D, 0x50CA, 0x834E, 0x50CB, 0x834F, 0x50CC, 0x8350, 0x50CD, 0x8351, 0x50CE, 0x8352, 0x50D0, + 0x8353, 0x50D1, 0x8354, 0x50D2, 0x8355, 0x50D3, 0x8356, 0x50D4, 0x8357, 0x50D5, 0x8358, 0x50D7, 0x8359, 0x50D8, 0x835A, 0x50D9, + 0x835B, 0x50DB, 0x835C, 0x50DC, 0x835D, 0x50DD, 0x835E, 0x50DE, 0x835F, 0x50DF, 0x8360, 0x50E0, 0x8361, 0x50E1, 0x8362, 0x50E2, + 0x8363, 0x50E3, 0x8364, 0x50E4, 0x8365, 0x50E5, 0x8366, 0x50E8, 0x8367, 0x50E9, 0x8368, 0x50EA, 0x8369, 0x50EB, 0x836A, 0x50EF, + 0x836B, 0x50F0, 0x836C, 0x50F1, 0x836D, 0x50F2, 0x836E, 0x50F4, 0x836F, 0x50F6, 0x8370, 0x50F7, 0x8371, 0x50F8, 0x8372, 0x50F9, + 0x8373, 0x50FA, 0x8374, 0x50FC, 0x8375, 0x50FD, 0x8376, 0x50FE, 0x8377, 0x50FF, 0x8378, 0x5100, 0x8379, 0x5101, 0x837A, 0x5102, + 0x837B, 0x5103, 0x837C, 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0x9EBA, 0xFC4E, 0x9EBC, 0xFC4F, 0x9EBF, + 0xFC50, 0x9EC0, 0xFC51, 0x9EC1, 0xFC52, 0x9EC2, 0xFC53, 0x9EC3, 0xFC54, 0x9EC5, 0xFC55, 0x9EC6, 0xFC56, 0x9EC7, 0xFC57, 0x9EC8, + 0xFC58, 0x9ECA, 0xFC59, 0x9ECB, 0xFC5A, 0x9ECC, 0xFC5B, 0x9ED0, 0xFC5C, 0x9ED2, 0xFC5D, 0x9ED3, 0xFC5E, 0x9ED5, 0xFC5F, 0x9ED6, + 0xFC60, 0x9ED7, 0xFC61, 0x9ED9, 0xFC62, 0x9EDA, 0xFC63, 0x9EDE, 0xFC64, 0x9EE1, 0xFC65, 0x9EE3, 0xFC66, 0x9EE4, 0xFC67, 0x9EE6, + 0xFC68, 0x9EE8, 0xFC69, 0x9EEB, 0xFC6A, 0x9EEC, 0xFC6B, 0x9EED, 0xFC6C, 0x9EEE, 0xFC6D, 0x9EF0, 0xFC6E, 0x9EF1, 0xFC6F, 0x9EF2, + 0xFC70, 0x9EF3, 0xFC71, 0x9EF4, 0xFC72, 0x9EF5, 0xFC73, 0x9EF6, 0xFC74, 0x9EF7, 0xFC75, 0x9EF8, 0xFC76, 0x9EFA, 0xFC77, 0x9EFD, + 0xFC78, 0x9EFF, 0xFC79, 0x9F00, 0xFC7A, 0x9F01, 0xFC7B, 0x9F02, 0xFC7C, 0x9F03, 0xFC7D, 0x9F04, 0xFC7E, 0x9F05, 0xFC80, 0x9F06, + 0xFC81, 0x9F07, 0xFC82, 0x9F08, 0xFC83, 0x9F09, 0xFC84, 0x9F0A, 0xFC85, 0x9F0C, 0xFC86, 0x9F0F, 0xFC87, 0x9F11, 0xFC88, 0x9F12, + 0xFC89, 0x9F14, 0xFC8A, 0x9F15, 0xFC8B, 0x9F16, 0xFC8C, 0x9F18, 0xFC8D, 0x9F1A, 0xFC8E, 0x9F1B, 0xFC8F, 0x9F1C, 0xFC90, 0x9F1D, + 0xFC91, 0x9F1E, 0xFC92, 0x9F1F, 0xFC93, 0x9F21, 0xFC94, 0x9F23, 0xFC95, 0x9F24, 0xFC96, 0x9F25, 0xFC97, 0x9F26, 0xFC98, 0x9F27, + 0xFC99, 0x9F28, 0xFC9A, 0x9F29, 0xFC9B, 0x9F2A, 0xFC9C, 0x9F2B, 0xFC9D, 0x9F2D, 0xFC9E, 0x9F2E, 0xFC9F, 0x9F30, 0xFCA0, 0x9F31, + 0xFD40, 0x9F32, 0xFD41, 0x9F33, 0xFD42, 0x9F34, 0xFD43, 0x9F35, 0xFD44, 0x9F36, 0xFD45, 0x9F38, 0xFD46, 0x9F3A, 0xFD47, 0x9F3C, + 0xFD48, 0x9F3F, 0xFD49, 0x9F40, 0xFD4A, 0x9F41, 0xFD4B, 0x9F42, 0xFD4C, 0x9F43, 0xFD4D, 0x9F45, 0xFD4E, 0x9F46, 0xFD4F, 0x9F47, + 0xFD50, 0x9F48, 0xFD51, 0x9F49, 0xFD52, 0x9F4A, 0xFD53, 0x9F4B, 0xFD54, 0x9F4C, 0xFD55, 0x9F4D, 0xFD56, 0x9F4E, 0xFD57, 0x9F4F, + 0xFD58, 0x9F52, 0xFD59, 0x9F53, 0xFD5A, 0x9F54, 0xFD5B, 0x9F55, 0xFD5C, 0x9F56, 0xFD5D, 0x9F57, 0xFD5E, 0x9F58, 0xFD5F, 0x9F59, + 0xFD60, 0x9F5A, 0xFD61, 0x9F5B, 0xFD62, 0x9F5C, 0xFD63, 0x9F5D, 0xFD64, 0x9F5E, 0xFD65, 0x9F5F, 0xFD66, 0x9F60, 0xFD67, 0x9F61, + 0xFD68, 0x9F62, 0xFD69, 0x9F63, 0xFD6A, 0x9F64, 0xFD6B, 0x9F65, 0xFD6C, 0x9F66, 0xFD6D, 0x9F67, 0xFD6E, 0x9F68, 0xFD6F, 0x9F69, + 0xFD70, 0x9F6A, 0xFD71, 0x9F6B, 0xFD72, 0x9F6C, 0xFD73, 0x9F6D, 0xFD74, 0x9F6E, 0xFD75, 0x9F6F, 0xFD76, 0x9F70, 0xFD77, 0x9F71, + 0xFD78, 0x9F72, 0xFD79, 0x9F73, 0xFD7A, 0x9F74, 0xFD7B, 0x9F75, 0xFD7C, 0x9F76, 0xFD7D, 0x9F77, 0xFD7E, 0x9F78, 0xFD80, 0x9F79, + 0xFD81, 0x9F7A, 0xFD82, 0x9F7B, 0xFD83, 0x9F7C, 0xFD84, 0x9F7D, 0xFD85, 0x9F7E, 0xFD86, 0x9F81, 0xFD87, 0x9F82, 0xFD88, 0x9F8D, + 0xFD89, 0x9F8E, 0xFD8A, 0x9F8F, 0xFD8B, 0x9F90, 0xFD8C, 0x9F91, 0xFD8D, 0x9F92, 0xFD8E, 0x9F93, 0xFD8F, 0x9F94, 0xFD90, 0x9F95, + 0xFD91, 0x9F96, 0xFD92, 0x9F97, 0xFD93, 0x9F98, 0xFD94, 0x9F9C, 0xFD95, 0x9F9D, 0xFD96, 0x9F9E, 0xFD97, 0x9FA1, 0xFD98, 0x9FA2, + 0xFD99, 0x9FA3, 0xFD9A, 0x9FA4, 0xFD9B, 0x9FA5, 0xFD9C, 0xF92C, 0xFD9D, 0xF979, 0xFD9E, 0xF995, 0xFD9F, 0xF9E7, 0xFDA0, 0xF9F1, + 0xFE40, 0xFA0C, 0xFE41, 0xFA0D, 0xFE42, 0xFA0E, 0xFE43, 0xFA0F, 0xFE44, 0xFA11, 0xFE45, 0xFA13, 0xFE46, 0xFA14, 0xFE47, 0xFA18, + 0xFE48, 0xFA1F, 0xFE49, 0xFA20, 0xFE4A, 0xFA21, 0xFE4B, 0xFA23, 0xFE4C, 0xFA24, 0xFE4D, 0xFA27, 0xFE4E, 0xFA28, 0xFE4F, 0xFA29, + 0, 0 +}; +#endif + +#if FF_CODE_PAGE == 949 || FF_CODE_PAGE == 0 /* Korean */ +static const WCHAR uni2oem949[] = { /* Unicode --> Korean pairs */ + 0x00A1, 0xA2AE, 0x00A4, 0xA2B4, 0x00A7, 0xA1D7, 0x00A8, 0xA1A7, 0x00AA, 0xA8A3, 0x00AD, 0xA1A9, 0x00AE, 0xA2E7, 0x00B0, 0xA1C6, + 0x00B1, 0xA1BE, 0x00B2, 0xA9F7, 0x00B3, 0xA9F8, 0x00B4, 0xA2A5, 0x00B6, 0xA2D2, 0x00B7, 0xA1A4, 0x00B8, 0xA2AC, 0x00B9, 0xA9F6, + 0x00BA, 0xA8AC, 0x00BC, 0xA8F9, 0x00BD, 0xA8F6, 0x00BE, 0xA8FA, 0x00BF, 0xA2AF, 0x00C6, 0xA8A1, 0x00D0, 0xA8A2, 0x00D7, 0xA1BF, + 0x00D8, 0xA8AA, 0x00DE, 0xA8AD, 0x00DF, 0xA9AC, 0x00E6, 0xA9A1, 0x00F0, 0xA9A3, 0x00F7, 0xA1C0, 0x00F8, 0xA9AA, 0x00FE, 0xA9AD, + 0x0111, 0xA9A2, 0x0126, 0xA8A4, 0x0127, 0xA9A4, 0x0131, 0xA9A5, 0x0132, 0xA8A6, 0x0133, 0xA9A6, 0x0138, 0xA9A7, 0x013F, 0xA8A8, + 0x0140, 0xA9A8, 0x0141, 0xA8A9, 0x0142, 0xA9A9, 0x0149, 0xA9B0, 0x014A, 0xA8AF, 0x014B, 0xA9AF, 0x0152, 0xA8AB, 0x0153, 0xA9AB, + 0x0166, 0xA8AE, 0x0167, 0xA9AE, 0x02C7, 0xA2A7, 0x02D0, 0xA2B0, 0x02D8, 0xA2A8, 0x02D9, 0xA2AB, 0x02DA, 0xA2AA, 0x02DB, 0xA2AD, + 0x02DD, 0xA2A9, 0x0391, 0xA5C1, 0x0392, 0xA5C2, 0x0393, 0xA5C3, 0x0394, 0xA5C4, 0x0395, 0xA5C5, 0x0396, 0xA5C6, 0x0397, 0xA5C7, + 0x0398, 0xA5C8, 0x0399, 0xA5C9, 0x039A, 0xA5CA, 0x039B, 0xA5CB, 0x039C, 0xA5CC, 0x039D, 0xA5CD, 0x039E, 0xA5CE, 0x039F, 0xA5CF, + 0x03A0, 0xA5D0, 0x03A1, 0xA5D1, 0x03A3, 0xA5D2, 0x03A4, 0xA5D3, 0x03A5, 0xA5D4, 0x03A6, 0xA5D5, 0x03A7, 0xA5D6, 0x03A8, 0xA5D7, + 0x03A9, 0xA5D8, 0x03B1, 0xA5E1, 0x03B2, 0xA5E2, 0x03B3, 0xA5E3, 0x03B4, 0xA5E4, 0x03B5, 0xA5E5, 0x03B6, 0xA5E6, 0x03B7, 0xA5E7, + 0x03B8, 0xA5E8, 0x03B9, 0xA5E9, 0x03BA, 0xA5EA, 0x03BB, 0xA5EB, 0x03BC, 0xA5EC, 0x03BD, 0xA5ED, 0x03BE, 0xA5EE, 0x03BF, 0xA5EF, + 0x03C0, 0xA5F0, 0x03C1, 0xA5F1, 0x03C3, 0xA5F2, 0x03C4, 0xA5F3, 0x03C5, 0xA5F4, 0x03C6, 0xA5F5, 0x03C7, 0xA5F6, 0x03C8, 0xA5F7, + 0x03C9, 0xA5F8, 0x0401, 0xACA7, 0x0410, 0xACA1, 0x0411, 0xACA2, 0x0412, 0xACA3, 0x0413, 0xACA4, 0x0414, 0xACA5, 0x0415, 0xACA6, + 0x0416, 0xACA8, 0x0417, 0xACA9, 0x0418, 0xACAA, 0x0419, 0xACAB, 0x041A, 0xACAC, 0x041B, 0xACAD, 0x041C, 0xACAE, 0x041D, 0xACAF, + 0x041E, 0xACB0, 0x041F, 0xACB1, 0x0420, 0xACB2, 0x0421, 0xACB3, 0x0422, 0xACB4, 0x0423, 0xACB5, 0x0424, 0xACB6, 0x0425, 0xACB7, + 0x0426, 0xACB8, 0x0427, 0xACB9, 0x0428, 0xACBA, 0x0429, 0xACBB, 0x042A, 0xACBC, 0x042B, 0xACBD, 0x042C, 0xACBE, 0x042D, 0xACBF, + 0x042E, 0xACC0, 0x042F, 0xACC1, 0x0430, 0xACD1, 0x0431, 0xACD2, 0x0432, 0xACD3, 0x0433, 0xACD4, 0x0434, 0xACD5, 0x0435, 0xACD6, + 0x0436, 0xACD8, 0x0437, 0xACD9, 0x0438, 0xACDA, 0x0439, 0xACDB, 0x043A, 0xACDC, 0x043B, 0xACDD, 0x043C, 0xACDE, 0x043D, 0xACDF, + 0x043E, 0xACE0, 0x043F, 0xACE1, 0x0440, 0xACE2, 0x0441, 0xACE3, 0x0442, 0xACE4, 0x0443, 0xACE5, 0x0444, 0xACE6, 0x0445, 0xACE7, + 0x0446, 0xACE8, 0x0447, 0xACE9, 0x0448, 0xACEA, 0x0449, 0xACEB, 0x044A, 0xACEC, 0x044B, 0xACED, 0x044C, 0xACEE, 0x044D, 0xACEF, + 0x044E, 0xACF0, 0x044F, 0xACF1, 0x0451, 0xACD7, 0x2015, 0xA1AA, 0x2018, 0xA1AE, 0x2019, 0xA1AF, 0x201C, 0xA1B0, 0x201D, 0xA1B1, + 0x2020, 0xA2D3, 0x2021, 0xA2D4, 0x2025, 0xA1A5, 0x2026, 0xA1A6, 0x2030, 0xA2B6, 0x2032, 0xA1C7, 0x2033, 0xA1C8, 0x203B, 0xA1D8, + 0x2074, 0xA9F9, 0x207F, 0xA9FA, 0x2081, 0xA9FB, 0x2082, 0xA9FC, 0x2083, 0xA9FD, 0x2084, 0xA9FE, 0x20AC, 0xA2E6, 0x2103, 0xA1C9, + 0x2109, 0xA2B5, 0x2113, 0xA7A4, 0x2116, 0xA2E0, 0x2121, 0xA2E5, 0x2122, 0xA2E2, 0x2126, 0xA7D9, 0x212B, 0xA1CA, 0x2153, 0xA8F7, + 0x2154, 0xA8F8, 0x215B, 0xA8FB, 0x215C, 0xA8FC, 0x215D, 0xA8FD, 0x215E, 0xA8FE, 0x2160, 0xA5B0, 0x2161, 0xA5B1, 0x2162, 0xA5B2, + 0x2163, 0xA5B3, 0x2164, 0xA5B4, 0x2165, 0xA5B5, 0x2166, 0xA5B6, 0x2167, 0xA5B7, 0x2168, 0xA5B8, 0x2169, 0xA5B9, 0x2170, 0xA5A1, + 0x2171, 0xA5A2, 0x2172, 0xA5A3, 0x2173, 0xA5A4, 0x2174, 0xA5A5, 0x2175, 0xA5A6, 0x2176, 0xA5A7, 0x2177, 0xA5A8, 0x2178, 0xA5A9, + 0x2179, 0xA5AA, 0x2190, 0xA1E7, 0x2191, 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0xD783, 0xC59A, + 0xD784, 0xC59B, 0xD785, 0xC59C, 0xD786, 0xC59D, 0xD787, 0xC59E, 0xD788, 0xC8F7, 0xD789, 0xC8F8, 0xD78A, 0xC59F, 0xD78B, 0xC5A0, + 0xD78C, 0xC8F9, 0xD78D, 0xC641, 0xD78E, 0xC642, 0xD78F, 0xC643, 0xD790, 0xC8FA, 0xD791, 0xC644, 0xD792, 0xC645, 0xD793, 0xC646, + 0xD794, 0xC647, 0xD795, 0xC648, 0xD796, 0xC649, 0xD797, 0xC64A, 0xD798, 0xC8FB, 0xD799, 0xC8FC, 0xD79A, 0xC64B, 0xD79B, 0xC8FD, + 0xD79C, 0xC64C, 0xD79D, 0xC8FE, 0xD79E, 0xC64D, 0xD79F, 0xC64E, 0xD7A0, 0xC64F, 0xD7A1, 0xC650, 0xD7A2, 0xC651, 0xD7A3, 0xC652, + 0xF900, 0xCBD0, 0xF901, 0xCBD6, 0xF902, 0xCBE7, 0xF903, 0xCDCF, 0xF904, 0xCDE8, 0xF905, 0xCEAD, 0xF906, 0xCFFB, 0xF907, 0xD0A2, + 0xF908, 0xD0B8, 0xF909, 0xD0D0, 0xF90A, 0xD0DD, 0xF90B, 0xD1D4, 0xF90C, 0xD1D5, 0xF90D, 0xD1D8, 0xF90E, 0xD1DB, 0xF90F, 0xD1DC, + 0xF910, 0xD1DD, 0xF911, 0xD1DE, 0xF912, 0xD1DF, 0xF913, 0xD1E0, 0xF914, 0xD1E2, 0xF915, 0xD1E3, 0xF916, 0xD1E4, 0xF917, 0xD1E5, + 0xF918, 0xD1E6, 0xF919, 0xD1E8, 0xF91A, 0xD1E9, 0xF91B, 0xD1EA, 0xF91C, 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0xF95A, 0xD4E6, 0xF95B, 0xD4FC, 0xF95C, 0xD5A5, 0xF95D, 0xD5AB, 0xF95E, 0xD5AE, 0xF95F, 0xD6B8, + 0xF960, 0xD6CD, 0xF961, 0xD7CB, 0xF962, 0xD7E4, 0xF963, 0xDBC5, 0xF964, 0xDBE4, 0xF965, 0xDCA5, 0xF966, 0xDDA5, 0xF967, 0xDDD5, + 0xF968, 0xDDF4, 0xF969, 0xDEFC, 0xF96A, 0xDEFE, 0xF96B, 0xDFB3, 0xF96C, 0xDFE1, 0xF96D, 0xDFE8, 0xF96E, 0xE0F1, 0xF96F, 0xE1AD, + 0xF970, 0xE1ED, 0xF971, 0xE3F5, 0xF972, 0xE4A1, 0xF973, 0xE4A9, 0xF974, 0xE5AE, 0xF975, 0xE5B1, 0xF976, 0xE5B2, 0xF977, 0xE5B9, + 0xF978, 0xE5BB, 0xF979, 0xE5BC, 0xF97A, 0xE5C4, 0xF97B, 0xE5CE, 0xF97C, 0xE5D0, 0xF97D, 0xE5D2, 0xF97E, 0xE5D6, 0xF97F, 0xE5FA, + 0xF980, 0xE5FB, 0xF981, 0xE5FC, 0xF982, 0xE5FE, 0xF983, 0xE6A1, 0xF984, 0xE6A4, 0xF985, 0xE6A7, 0xF986, 0xE6AD, 0xF987, 0xE6AF, + 0xF988, 0xE6B0, 0xF989, 0xE6B1, 0xF98A, 0xE6B3, 0xF98B, 0xE6B7, 0xF98C, 0xE6B8, 0xF98D, 0xE6BC, 0xF98E, 0xE6C4, 0xF98F, 0xE6C6, + 0xF990, 0xE6C7, 0xF991, 0xE6CA, 0xF992, 0xE6D2, 0xF993, 0xE6D6, 0xF994, 0xE6D9, 0xF995, 0xE6DC, 0xF996, 0xE6DF, 0xF997, 0xE6E1, + 0xF998, 0xE6E4, 0xF999, 0xE6E5, 0xF99A, 0xE6E6, 0xF99B, 0xE6E8, 0xF99C, 0xE6EA, 0xF99D, 0xE6EB, 0xF99E, 0xE6EC, 0xF99F, 0xE6EF, + 0xF9A0, 0xE6F1, 0xF9A1, 0xE6F2, 0xF9A2, 0xE6F5, 0xF9A3, 0xE6F6, 0xF9A4, 0xE6F7, 0xF9A5, 0xE6F9, 0xF9A6, 0xE7A1, 0xF9A7, 0xE7A6, + 0xF9A8, 0xE7A9, 0xF9A9, 0xE7AA, 0xF9AA, 0xE7AC, 0xF9AB, 0xE7AD, 0xF9AC, 0xE7B0, 0xF9AD, 0xE7BF, 0xF9AE, 0xE7C1, 0xF9AF, 0xE7C6, + 0xF9B0, 0xE7C7, 0xF9B1, 0xE7CB, 0xF9B2, 0xE7CD, 0xF9B3, 0xE7CF, 0xF9B4, 0xE7D0, 0xF9B5, 0xE7D3, 0xF9B6, 0xE7DF, 0xF9B7, 0xE7E4, + 0xF9B8, 0xE7E6, 0xF9B9, 0xE7F7, 0xF9BA, 0xE8E7, 0xF9BB, 0xE8E8, 0xF9BC, 0xE8F0, 0xF9BD, 0xE8F1, 0xF9BE, 0xE8F7, 0xF9BF, 0xE8F9, + 0xF9C0, 0xE8FB, 0xF9C1, 0xE8FE, 0xF9C2, 0xE9A7, 0xF9C3, 0xE9AC, 0xF9C4, 0xE9CC, 0xF9C5, 0xE9F7, 0xF9C6, 0xEAC1, 0xF9C7, 0xEAE5, + 0xF9C8, 0xEAF4, 0xF9C9, 0xEAF7, 0xF9CA, 0xEAFC, 0xF9CB, 0xEAFE, 0xF9CC, 0xEBA4, 0xF9CD, 0xEBA7, 0xF9CE, 0xEBA9, 0xF9CF, 0xEBAA, + 0xF9D0, 0xEBBA, 0xF9D1, 0xEBBB, 0xF9D2, 0xEBBD, 0xF9D3, 0xEBC1, 0xF9D4, 0xEBC2, 0xF9D5, 0xEBC6, 0xF9D6, 0xEBC7, 0xF9D7, 0xEBCC, + 0xF9D8, 0xEBCF, 0xF9D9, 0xEBD0, 0xF9DA, 0xEBD1, 0xF9DB, 0xEBD2, 0xF9DC, 0xEBD8, 0xF9DD, 0xECA6, 0xF9DE, 0xECA7, 0xF9DF, 0xECAA, + 0xF9E0, 0xECAF, 0xF9E1, 0xECB0, 0xF9E2, 0xECB1, 0xF9E3, 0xECB2, 0xF9E4, 0xECB5, 0xF9E5, 0xECB8, 0xF9E6, 0xECBA, 0xF9E7, 0xECC0, + 0xF9E8, 0xECC1, 0xF9E9, 0xECC5, 0xF9EA, 0xECC6, 0xF9EB, 0xECC9, 0xF9EC, 0xECCA, 0xF9ED, 0xECD5, 0xF9EE, 0xECDD, 0xF9EF, 0xECDE, + 0xF9F0, 0xECE1, 0xF9F1, 0xECE4, 0xF9F2, 0xECE7, 0xF9F3, 0xECE8, 0xF9F4, 0xECF7, 0xF9F5, 0xECF8, 0xF9F6, 0xECFA, 0xF9F7, 0xEDA1, + 0xF9F8, 0xEDA2, 0xF9F9, 0xEDA3, 0xF9FA, 0xEDEE, 0xF9FB, 0xEEDB, 0xF9FC, 0xF2BD, 0xF9FD, 0xF2FA, 0xF9FE, 0xF3B1, 0xF9FF, 0xF4A7, + 0xFA00, 0xF4EE, 0xFA01, 0xF6F4, 0xFA02, 0xF6F6, 0xFA03, 0xF7B8, 0xFA04, 0xF7C8, 0xFA05, 0xF7D3, 0xFA06, 0xF8DB, 0xFA07, 0xF8F0, + 0xFA08, 0xFAA1, 0xFA09, 0xFAA2, 0xFA0A, 0xFAE6, 0xFA0B, 0xFCA9, 0xFF01, 0xA3A1, 0xFF02, 0xA3A2, 0xFF03, 0xA3A3, 0xFF04, 0xA3A4, + 0xFF05, 0xA3A5, 0xFF06, 0xA3A6, 0xFF07, 0xA3A7, 0xFF08, 0xA3A8, 0xFF09, 0xA3A9, 0xFF0A, 0xA3AA, 0xFF0B, 0xA3AB, 0xFF0C, 0xA3AC, + 0xFF0D, 0xA3AD, 0xFF0E, 0xA3AE, 0xFF0F, 0xA3AF, 0xFF10, 0xA3B0, 0xFF11, 0xA3B1, 0xFF12, 0xA3B2, 0xFF13, 0xA3B3, 0xFF14, 0xA3B4, + 0xFF15, 0xA3B5, 0xFF16, 0xA3B6, 0xFF17, 0xA3B7, 0xFF18, 0xA3B8, 0xFF19, 0xA3B9, 0xFF1A, 0xA3BA, 0xFF1B, 0xA3BB, 0xFF1C, 0xA3BC, + 0xFF1D, 0xA3BD, 0xFF1E, 0xA3BE, 0xFF1F, 0xA3BF, 0xFF20, 0xA3C0, 0xFF21, 0xA3C1, 0xFF22, 0xA3C2, 0xFF23, 0xA3C3, 0xFF24, 0xA3C4, + 0xFF25, 0xA3C5, 0xFF26, 0xA3C6, 0xFF27, 0xA3C7, 0xFF28, 0xA3C8, 0xFF29, 0xA3C9, 0xFF2A, 0xA3CA, 0xFF2B, 0xA3CB, 0xFF2C, 0xA3CC, + 0xFF2D, 0xA3CD, 0xFF2E, 0xA3CE, 0xFF2F, 0xA3CF, 0xFF30, 0xA3D0, 0xFF31, 0xA3D1, 0xFF32, 0xA3D2, 0xFF33, 0xA3D3, 0xFF34, 0xA3D4, + 0xFF35, 0xA3D5, 0xFF36, 0xA3D6, 0xFF37, 0xA3D7, 0xFF38, 0xA3D8, 0xFF39, 0xA3D9, 0xFF3A, 0xA3DA, 0xFF3B, 0xA3DB, 0xFF3C, 0xA1AC, + 0xFF3D, 0xA3DD, 0xFF3E, 0xA3DE, 0xFF3F, 0xA3DF, 0xFF40, 0xA3E0, 0xFF41, 0xA3E1, 0xFF42, 0xA3E2, 0xFF43, 0xA3E3, 0xFF44, 0xA3E4, + 0xFF45, 0xA3E5, 0xFF46, 0xA3E6, 0xFF47, 0xA3E7, 0xFF48, 0xA3E8, 0xFF49, 0xA3E9, 0xFF4A, 0xA3EA, 0xFF4B, 0xA3EB, 0xFF4C, 0xA3EC, + 0xFF4D, 0xA3ED, 0xFF4E, 0xA3EE, 0xFF4F, 0xA3EF, 0xFF50, 0xA3F0, 0xFF51, 0xA3F1, 0xFF52, 0xA3F2, 0xFF53, 0xA3F3, 0xFF54, 0xA3F4, + 0xFF55, 0xA3F5, 0xFF56, 0xA3F6, 0xFF57, 0xA3F7, 0xFF58, 0xA3F8, 0xFF59, 0xA3F9, 0xFF5A, 0xA3FA, 0xFF5B, 0xA3FB, 0xFF5C, 0xA3FC, + 0xFF5D, 0xA3FD, 0xFF5E, 0xA2A6, 0xFFE0, 0xA1CB, 0xFFE1, 0xA1CC, 0xFFE2, 0xA1FE, 0xFFE3, 0xA3FE, 0xFFE5, 0xA1CD, 0xFFE6, 0xA3DC, + 0, 0 +}; + +static const WCHAR oem2uni949[] = { /* Korean --> Unicode pairs */ + 0x8141, 0xAC02, 0x8142, 0xAC03, 0x8143, 0xAC05, 0x8144, 0xAC06, 0x8145, 0xAC0B, 0x8146, 0xAC0C, 0x8147, 0xAC0D, 0x8148, 0xAC0E, + 0x8149, 0xAC0F, 0x814A, 0xAC18, 0x814B, 0xAC1E, 0x814C, 0xAC1F, 0x814D, 0xAC21, 0x814E, 0xAC22, 0x814F, 0xAC23, 0x8150, 0xAC25, + 0x8151, 0xAC26, 0x8152, 0xAC27, 0x8153, 0xAC28, 0x8154, 0xAC29, 0x8155, 0xAC2A, 0x8156, 0xAC2B, 0x8157, 0xAC2E, 0x8158, 0xAC32, + 0x8159, 0xAC33, 0x815A, 0xAC34, 0x8161, 0xAC35, 0x8162, 0xAC36, 0x8163, 0xAC37, 0x8164, 0xAC3A, 0x8165, 0xAC3B, 0x8166, 0xAC3D, + 0x8167, 0xAC3E, 0x8168, 0xAC3F, 0x8169, 0xAC41, 0x816A, 0xAC42, 0x816B, 0xAC43, 0x816C, 0xAC44, 0x816D, 0xAC45, 0x816E, 0xAC46, + 0x816F, 0xAC47, 0x8170, 0xAC48, 0x8171, 0xAC49, 0x8172, 0xAC4A, 0x8173, 0xAC4C, 0x8174, 0xAC4E, 0x8175, 0xAC4F, 0x8176, 0xAC50, + 0x8177, 0xAC51, 0x8178, 0xAC52, 0x8179, 0xAC53, 0x817A, 0xAC55, 0x8181, 0xAC56, 0x8182, 0xAC57, 0x8183, 0xAC59, 0x8184, 0xAC5A, + 0x8185, 0xAC5B, 0x8186, 0xAC5D, 0x8187, 0xAC5E, 0x8188, 0xAC5F, 0x8189, 0xAC60, 0x818A, 0xAC61, 0x818B, 0xAC62, 0x818C, 0xAC63, + 0x818D, 0xAC64, 0x818E, 0xAC65, 0x818F, 0xAC66, 0x8190, 0xAC67, 0x8191, 0xAC68, 0x8192, 0xAC69, 0x8193, 0xAC6A, 0x8194, 0xAC6B, + 0x8195, 0xAC6C, 0x8196, 0xAC6D, 0x8197, 0xAC6E, 0x8198, 0xAC6F, 0x8199, 0xAC72, 0x819A, 0xAC73, 0x819B, 0xAC75, 0x819C, 0xAC76, + 0x819D, 0xAC79, 0x819E, 0xAC7B, 0x819F, 0xAC7C, 0x81A0, 0xAC7D, 0x81A1, 0xAC7E, 0x81A2, 0xAC7F, 0x81A3, 0xAC82, 0x81A4, 0xAC87, + 0x81A5, 0xAC88, 0x81A6, 0xAC8D, 0x81A7, 0xAC8E, 0x81A8, 0xAC8F, 0x81A9, 0xAC91, 0x81AA, 0xAC92, 0x81AB, 0xAC93, 0x81AC, 0xAC95, + 0x81AD, 0xAC96, 0x81AE, 0xAC97, 0x81AF, 0xAC98, 0x81B0, 0xAC99, 0x81B1, 0xAC9A, 0x81B2, 0xAC9B, 0x81B3, 0xAC9E, 0x81B4, 0xACA2, + 0x81B5, 0xACA3, 0x81B6, 0xACA4, 0x81B7, 0xACA5, 0x81B8, 0xACA6, 0x81B9, 0xACA7, 0x81BA, 0xACAB, 0x81BB, 0xACAD, 0x81BC, 0xACAE, + 0x81BD, 0xACB1, 0x81BE, 0xACB2, 0x81BF, 0xACB3, 0x81C0, 0xACB4, 0x81C1, 0xACB5, 0x81C2, 0xACB6, 0x81C3, 0xACB7, 0x81C4, 0xACBA, + 0x81C5, 0xACBE, 0x81C6, 0xACBF, 0x81C7, 0xACC0, 0x81C8, 0xACC2, 0x81C9, 0xACC3, 0x81CA, 0xACC5, 0x81CB, 0xACC6, 0x81CC, 0xACC7, + 0x81CD, 0xACC9, 0x81CE, 0xACCA, 0x81CF, 0xACCB, 0x81D0, 0xACCD, 0x81D1, 0xACCE, 0x81D2, 0xACCF, 0x81D3, 0xACD0, 0x81D4, 0xACD1, + 0x81D5, 0xACD2, 0x81D6, 0xACD3, 0x81D7, 0xACD4, 0x81D8, 0xACD6, 0x81D9, 0xACD8, 0x81DA, 0xACD9, 0x81DB, 0xACDA, 0x81DC, 0xACDB, + 0x81DD, 0xACDC, 0x81DE, 0xACDD, 0x81DF, 0xACDE, 0x81E0, 0xACDF, 0x81E1, 0xACE2, 0x81E2, 0xACE3, 0x81E3, 0xACE5, 0x81E4, 0xACE6, + 0x81E5, 0xACE9, 0x81E6, 0xACEB, 0x81E7, 0xACED, 0x81E8, 0xACEE, 0x81E9, 0xACF2, 0x81EA, 0xACF4, 0x81EB, 0xACF7, 0x81EC, 0xACF8, + 0x81ED, 0xACF9, 0x81EE, 0xACFA, 0x81EF, 0xACFB, 0x81F0, 0xACFE, 0x81F1, 0xACFF, 0x81F2, 0xAD01, 0x81F3, 0xAD02, 0x81F4, 0xAD03, + 0x81F5, 0xAD05, 0x81F6, 0xAD07, 0x81F7, 0xAD08, 0x81F8, 0xAD09, 0x81F9, 0xAD0A, 0x81FA, 0xAD0B, 0x81FB, 0xAD0E, 0x81FC, 0xAD10, + 0x81FD, 0xAD12, 0x81FE, 0xAD13, 0x8241, 0xAD14, 0x8242, 0xAD15, 0x8243, 0xAD16, 0x8244, 0xAD17, 0x8245, 0xAD19, 0x8246, 0xAD1A, + 0x8247, 0xAD1B, 0x8248, 0xAD1D, 0x8249, 0xAD1E, 0x824A, 0xAD1F, 0x824B, 0xAD21, 0x824C, 0xAD22, 0x824D, 0xAD23, 0x824E, 0xAD24, + 0x824F, 0xAD25, 0x8250, 0xAD26, 0x8251, 0xAD27, 0x8252, 0xAD28, 0x8253, 0xAD2A, 0x8254, 0xAD2B, 0x8255, 0xAD2E, 0x8256, 0xAD2F, + 0x8257, 0xAD30, 0x8258, 0xAD31, 0x8259, 0xAD32, 0x825A, 0xAD33, 0x8261, 0xAD36, 0x8262, 0xAD37, 0x8263, 0xAD39, 0x8264, 0xAD3A, + 0x8265, 0xAD3B, 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0xFAB4, 0x99ED, 0xFAB5, 0x9AB8, 0xFAB6, 0x52BE, 0xFAB7, 0x6838, 0xFAB8, 0x5016, + 0xFAB9, 0x5E78, 0xFABA, 0x674F, 0xFABB, 0x8347, 0xFABC, 0x884C, 0xFABD, 0x4EAB, 0xFABE, 0x5411, 0xFABF, 0x56AE, 0xFAC0, 0x73E6, + 0xFAC1, 0x9115, 0xFAC2, 0x97FF, 0xFAC3, 0x9909, 0xFAC4, 0x9957, 0xFAC5, 0x9999, 0xFAC6, 0x5653, 0xFAC7, 0x589F, 0xFAC8, 0x865B, + 0xFAC9, 0x8A31, 0xFACA, 0x61B2, 0xFACB, 0x6AF6, 0xFACC, 0x737B, 0xFACD, 0x8ED2, 0xFACE, 0x6B47, 0xFACF, 0x96AA, 0xFAD0, 0x9A57, + 0xFAD1, 0x5955, 0xFAD2, 0x7200, 0xFAD3, 0x8D6B, 0xFAD4, 0x9769, 0xFAD5, 0x4FD4, 0xFAD6, 0x5CF4, 0xFAD7, 0x5F26, 0xFAD8, 0x61F8, + 0xFAD9, 0x665B, 0xFADA, 0x6CEB, 0xFADB, 0x70AB, 0xFADC, 0x7384, 0xFADD, 0x73B9, 0xFADE, 0x73FE, 0xFADF, 0x7729, 0xFAE0, 0x774D, + 0xFAE1, 0x7D43, 0xFAE2, 0x7D62, 0xFAE3, 0x7E23, 0xFAE4, 0x8237, 0xFAE5, 0x8852, 0xFAE6, 0xFA0A, 0xFAE7, 0x8CE2, 0xFAE8, 0x9249, + 0xFAE9, 0x986F, 0xFAEA, 0x5B51, 0xFAEB, 0x7A74, 0xFAEC, 0x8840, 0xFAED, 0x9801, 0xFAEE, 0x5ACC, 0xFAEF, 0x4FE0, 0xFAF0, 0x5354, + 0xFAF1, 0x593E, 0xFAF2, 0x5CFD, 0xFAF3, 0x633E, 0xFAF4, 0x6D79, 0xFAF5, 0x72F9, 0xFAF6, 0x8105, 0xFAF7, 0x8107, 0xFAF8, 0x83A2, + 0xFAF9, 0x92CF, 0xFAFA, 0x9830, 0xFAFB, 0x4EA8, 0xFAFC, 0x5144, 0xFAFD, 0x5211, 0xFAFE, 0x578B, 0xFBA1, 0x5F62, 0xFBA2, 0x6CC2, + 0xFBA3, 0x6ECE, 0xFBA4, 0x7005, 0xFBA5, 0x7050, 0xFBA6, 0x70AF, 0xFBA7, 0x7192, 0xFBA8, 0x73E9, 0xFBA9, 0x7469, 0xFBAA, 0x834A, + 0xFBAB, 0x87A2, 0xFBAC, 0x8861, 0xFBAD, 0x9008, 0xFBAE, 0x90A2, 0xFBAF, 0x93A3, 0xFBB0, 0x99A8, 0xFBB1, 0x516E, 0xFBB2, 0x5F57, + 0xFBB3, 0x60E0, 0xFBB4, 0x6167, 0xFBB5, 0x66B3, 0xFBB6, 0x8559, 0xFBB7, 0x8E4A, 0xFBB8, 0x91AF, 0xFBB9, 0x978B, 0xFBBA, 0x4E4E, + 0xFBBB, 0x4E92, 0xFBBC, 0x547C, 0xFBBD, 0x58D5, 0xFBBE, 0x58FA, 0xFBBF, 0x597D, 0xFBC0, 0x5CB5, 0xFBC1, 0x5F27, 0xFBC2, 0x6236, + 0xFBC3, 0x6248, 0xFBC4, 0x660A, 0xFBC5, 0x6667, 0xFBC6, 0x6BEB, 0xFBC7, 0x6D69, 0xFBC8, 0x6DCF, 0xFBC9, 0x6E56, 0xFBCA, 0x6EF8, + 0xFBCB, 0x6F94, 0xFBCC, 0x6FE0, 0xFBCD, 0x6FE9, 0xFBCE, 0x705D, 0xFBCF, 0x72D0, 0xFBD0, 0x7425, 0xFBD1, 0x745A, 0xFBD2, 0x74E0, + 0xFBD3, 0x7693, 0xFBD4, 0x795C, 0xFBD5, 0x7CCA, 0xFBD6, 0x7E1E, 0xFBD7, 0x80E1, 0xFBD8, 0x82A6, 0xFBD9, 0x846B, 0xFBDA, 0x84BF, + 0xFBDB, 0x864E, 0xFBDC, 0x865F, 0xFBDD, 0x8774, 0xFBDE, 0x8B77, 0xFBDF, 0x8C6A, 0xFBE0, 0x93AC, 0xFBE1, 0x9800, 0xFBE2, 0x9865, + 0xFBE3, 0x60D1, 0xFBE4, 0x6216, 0xFBE5, 0x9177, 0xFBE6, 0x5A5A, 0xFBE7, 0x660F, 0xFBE8, 0x6DF7, 0xFBE9, 0x6E3E, 0xFBEA, 0x743F, + 0xFBEB, 0x9B42, 0xFBEC, 0x5FFD, 0xFBED, 0x60DA, 0xFBEE, 0x7B0F, 0xFBEF, 0x54C4, 0xFBF0, 0x5F18, 0xFBF1, 0x6C5E, 0xFBF2, 0x6CD3, + 0xFBF3, 0x6D2A, 0xFBF4, 0x70D8, 0xFBF5, 0x7D05, 0xFBF6, 0x8679, 0xFBF7, 0x8A0C, 0xFBF8, 0x9D3B, 0xFBF9, 0x5316, 0xFBFA, 0x548C, + 0xFBFB, 0x5B05, 0xFBFC, 0x6A3A, 0xFBFD, 0x706B, 0xFBFE, 0x7575, 0xFCA1, 0x798D, 0xFCA2, 0x79BE, 0xFCA3, 0x82B1, 0xFCA4, 0x83EF, + 0xFCA5, 0x8A71, 0xFCA6, 0x8B41, 0xFCA7, 0x8CA8, 0xFCA8, 0x9774, 0xFCA9, 0xFA0B, 0xFCAA, 0x64F4, 0xFCAB, 0x652B, 0xFCAC, 0x78BA, + 0xFCAD, 0x78BB, 0xFCAE, 0x7A6B, 0xFCAF, 0x4E38, 0xFCB0, 0x559A, 0xFCB1, 0x5950, 0xFCB2, 0x5BA6, 0xFCB3, 0x5E7B, 0xFCB4, 0x60A3, + 0xFCB5, 0x63DB, 0xFCB6, 0x6B61, 0xFCB7, 0x6665, 0xFCB8, 0x6853, 0xFCB9, 0x6E19, 0xFCBA, 0x7165, 0xFCBB, 0x74B0, 0xFCBC, 0x7D08, + 0xFCBD, 0x9084, 0xFCBE, 0x9A69, 0xFCBF, 0x9C25, 0xFCC0, 0x6D3B, 0xFCC1, 0x6ED1, 0xFCC2, 0x733E, 0xFCC3, 0x8C41, 0xFCC4, 0x95CA, + 0xFCC5, 0x51F0, 0xFCC6, 0x5E4C, 0xFCC7, 0x5FA8, 0xFCC8, 0x604D, 0xFCC9, 0x60F6, 0xFCCA, 0x6130, 0xFCCB, 0x614C, 0xFCCC, 0x6643, + 0xFCCD, 0x6644, 0xFCCE, 0x69A5, 0xFCCF, 0x6CC1, 0xFCD0, 0x6E5F, 0xFCD1, 0x6EC9, 0xFCD2, 0x6F62, 0xFCD3, 0x714C, 0xFCD4, 0x749C, + 0xFCD5, 0x7687, 0xFCD6, 0x7BC1, 0xFCD7, 0x7C27, 0xFCD8, 0x8352, 0xFCD9, 0x8757, 0xFCDA, 0x9051, 0xFCDB, 0x968D, 0xFCDC, 0x9EC3, + 0xFCDD, 0x532F, 0xFCDE, 0x56DE, 0xFCDF, 0x5EFB, 0xFCE0, 0x5F8A, 0xFCE1, 0x6062, 0xFCE2, 0x6094, 0xFCE3, 0x61F7, 0xFCE4, 0x6666, + 0xFCE5, 0x6703, 0xFCE6, 0x6A9C, 0xFCE7, 0x6DEE, 0xFCE8, 0x6FAE, 0xFCE9, 0x7070, 0xFCEA, 0x736A, 0xFCEB, 0x7E6A, 0xFCEC, 0x81BE, + 0xFCED, 0x8334, 0xFCEE, 0x86D4, 0xFCEF, 0x8AA8, 0xFCF0, 0x8CC4, 0xFCF1, 0x5283, 0xFCF2, 0x7372, 0xFCF3, 0x5B96, 0xFCF4, 0x6A6B, + 0xFCF5, 0x9404, 0xFCF6, 0x54EE, 0xFCF7, 0x5686, 0xFCF8, 0x5B5D, 0xFCF9, 0x6548, 0xFCFA, 0x6585, 0xFCFB, 0x66C9, 0xFCFC, 0x689F, + 0xFCFD, 0x6D8D, 0xFCFE, 0x6DC6, 0xFDA1, 0x723B, 0xFDA2, 0x80B4, 0xFDA3, 0x9175, 0xFDA4, 0x9A4D, 0xFDA5, 0x4FAF, 0xFDA6, 0x5019, + 0xFDA7, 0x539A, 0xFDA8, 0x540E, 0xFDA9, 0x543C, 0xFDAA, 0x5589, 0xFDAB, 0x55C5, 0xFDAC, 0x5E3F, 0xFDAD, 0x5F8C, 0xFDAE, 0x673D, + 0xFDAF, 0x7166, 0xFDB0, 0x73DD, 0xFDB1, 0x9005, 0xFDB2, 0x52DB, 0xFDB3, 0x52F3, 0xFDB4, 0x5864, 0xFDB5, 0x58CE, 0xFDB6, 0x7104, + 0xFDB7, 0x718F, 0xFDB8, 0x71FB, 0xFDB9, 0x85B0, 0xFDBA, 0x8A13, 0xFDBB, 0x6688, 0xFDBC, 0x85A8, 0xFDBD, 0x55A7, 0xFDBE, 0x6684, + 0xFDBF, 0x714A, 0xFDC0, 0x8431, 0xFDC1, 0x5349, 0xFDC2, 0x5599, 0xFDC3, 0x6BC1, 0xFDC4, 0x5F59, 0xFDC5, 0x5FBD, 0xFDC6, 0x63EE, + 0xFDC7, 0x6689, 0xFDC8, 0x7147, 0xFDC9, 0x8AF1, 0xFDCA, 0x8F1D, 0xFDCB, 0x9EBE, 0xFDCC, 0x4F11, 0xFDCD, 0x643A, 0xFDCE, 0x70CB, + 0xFDCF, 0x7566, 0xFDD0, 0x8667, 0xFDD1, 0x6064, 0xFDD2, 0x8B4E, 0xFDD3, 0x9DF8, 0xFDD4, 0x5147, 0xFDD5, 0x51F6, 0xFDD6, 0x5308, + 0xFDD7, 0x6D36, 0xFDD8, 0x80F8, 0xFDD9, 0x9ED1, 0xFDDA, 0x6615, 0xFDDB, 0x6B23, 0xFDDC, 0x7098, 0xFDDD, 0x75D5, 0xFDDE, 0x5403, + 0xFDDF, 0x5C79, 0xFDE0, 0x7D07, 0xFDE1, 0x8A16, 0xFDE2, 0x6B20, 0xFDE3, 0x6B3D, 0xFDE4, 0x6B46, 0xFDE5, 0x5438, 0xFDE6, 0x6070, + 0xFDE7, 0x6D3D, 0xFDE8, 0x7FD5, 0xFDE9, 0x8208, 0xFDEA, 0x50D6, 0xFDEB, 0x51DE, 0xFDEC, 0x559C, 0xFDED, 0x566B, 0xFDEE, 0x56CD, + 0xFDEF, 0x59EC, 0xFDF0, 0x5B09, 0xFDF1, 0x5E0C, 0xFDF2, 0x6199, 0xFDF3, 0x6198, 0xFDF4, 0x6231, 0xFDF5, 0x665E, 0xFDF6, 0x66E6, + 0xFDF7, 0x7199, 0xFDF8, 0x71B9, 0xFDF9, 0x71BA, 0xFDFA, 0x72A7, 0xFDFB, 0x79A7, 0xFDFC, 0x7A00, 0xFDFD, 0x7FB2, 0xFDFE, 0x8A70, + 0, 0 +}; +#endif + +#if FF_CODE_PAGE == 950 || FF_CODE_PAGE == 0 /* Traditional Chinese */ +static const WCHAR uni2oem950[] = { /* Unicode --> Big5 pairs */ + 0x00A7, 0xA1B1, 0x00AF, 0xA1C2, 0x00B0, 0xA258, 0x00B1, 0xA1D3, 0x00B7, 0xA150, 0x00D7, 0xA1D1, 0x00F7, 0xA1D2, 0x02C7, 0xA3BE, + 0x02C9, 0xA3BC, 0x02CA, 0xA3BD, 0x02CB, 0xA3BF, 0x02CD, 0xA1C5, 0x02D9, 0xA3BB, 0x0391, 0xA344, 0x0392, 0xA345, 0x0393, 0xA346, + 0x0394, 0xA347, 0x0395, 0xA348, 0x0396, 0xA349, 0x0397, 0xA34A, 0x0398, 0xA34B, 0x0399, 0xA34C, 0x039A, 0xA34D, 0x039B, 0xA34E, + 0x039C, 0xA34F, 0x039D, 0xA350, 0x039E, 0xA351, 0x039F, 0xA352, 0x03A0, 0xA353, 0x03A1, 0xA354, 0x03A3, 0xA355, 0x03A4, 0xA356, + 0x03A5, 0xA357, 0x03A6, 0xA358, 0x03A7, 0xA359, 0x03A8, 0xA35A, 0x03A9, 0xA35B, 0x03B1, 0xA35C, 0x03B2, 0xA35D, 0x03B3, 0xA35E, + 0x03B4, 0xA35F, 0x03B5, 0xA360, 0x03B6, 0xA361, 0x03B7, 0xA362, 0x03B8, 0xA363, 0x03B9, 0xA364, 0x03BA, 0xA365, 0x03BB, 0xA366, + 0x03BC, 0xA367, 0x03BD, 0xA368, 0x03BE, 0xA369, 0x03BF, 0xA36A, 0x03C0, 0xA36B, 0x03C1, 0xA36C, 0x03C3, 0xA36D, 0x03C4, 0xA36E, + 0x03C5, 0xA36F, 0x03C6, 0xA370, 0x03C7, 0xA371, 0x03C8, 0xA372, 0x03C9, 0xA373, 0x2013, 0xA156, 0x2014, 0xA158, 0x2018, 0xA1A5, + 0x2019, 0xA1A6, 0x201C, 0xA1A7, 0x201D, 0xA1A8, 0x2025, 0xA14C, 0x2026, 0xA14B, 0x2027, 0xA145, 0x2032, 0xA1AC, 0x2035, 0xA1AB, + 0x203B, 0xA1B0, 0x20AC, 0xA3E1, 0x2103, 0xA24A, 0x2105, 0xA1C1, 0x2109, 0xA24B, 0x2160, 0xA2B9, 0x2161, 0xA2BA, 0x2162, 0xA2BB, + 0x2163, 0xA2BC, 0x2164, 0xA2BD, 0x2165, 0xA2BE, 0x2166, 0xA2BF, 0x2167, 0xA2C0, 0x2168, 0xA2C1, 0x2169, 0xA2C2, 0x2190, 0xA1F6, + 0x2191, 0xA1F4, 0x2192, 0xA1F7, 0x2193, 0xA1F5, 0x2196, 0xA1F8, 0x2197, 0xA1F9, 0x2198, 0xA1FB, 0x2199, 0xA1FA, 0x2215, 0xA241, + 0x221A, 0xA1D4, 0x221E, 0xA1DB, 0x221F, 0xA1E8, 0x2220, 0xA1E7, 0x2223, 0xA1FD, 0x2225, 0xA1FC, 0x2229, 0xA1E4, 0x222A, 0xA1E5, + 0x222B, 0xA1EC, 0x222E, 0xA1ED, 0x2234, 0xA1EF, 0x2235, 0xA1EE, 0x2252, 0xA1DC, 0x2260, 0xA1DA, 0x2261, 0xA1DD, 0x2266, 0xA1D8, + 0x2267, 0xA1D9, 0x2295, 0xA1F2, 0x2299, 0xA1F3, 0x22A5, 0xA1E6, 0x22BF, 0xA1E9, 0x2500, 0xA277, 0x2502, 0xA278, 0x250C, 0xA27A, + 0x2510, 0xA27B, 0x2514, 0xA27C, 0x2518, 0xA27D, 0x251C, 0xA275, 0x2524, 0xA274, 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0xC24C, 0x9EDC, 0xC24A, 0x9EDD, 0xC24B, 0x9EDE, 0xC249, 0x9EDF, 0xF1E0, 0x9EE0, 0xC35C, 0x9EE4, 0xF5B5, 0x9EE5, 0xF5B4, + 0x9EE6, 0xF5B7, 0x9EE7, 0xF5B6, 0x9EE8, 0xC4D2, 0x9EEB, 0xF6CB, 0x9EED, 0xF6CD, 0x9EEE, 0xF6CC, 0x9EEF, 0xC566, 0x9EF0, 0xF7C8, + 0x9EF2, 0xF876, 0x9EF3, 0xF877, 0x9EF4, 0xC5F0, 0x9EF5, 0xF964, 0x9EF6, 0xF97D, 0x9EF7, 0xC675, 0x9EF9, 0xDCB0, 0x9EFA, 0xECB6, + 0x9EFB, 0xEFB0, 0x9EFC, 0xF3F5, 0x9EFD, 0xE0EF, 0x9EFF, 0xEFB1, 0x9F00, 0xF1E2, 0x9F01, 0xF1E1, 0x9F06, 0xF878, 0x9F07, 0xC652, + 0x9F09, 0xF965, 0x9F0A, 0xF97E, 0x9F0E, 0xB9A9, 0x9F0F, 0xE8F2, 0x9F10, 0xE8F3, 0x9F12, 0xECB7, 0x9F13, 0xB9AA, 0x9F15, 0xC35D, + 0x9F16, 0xF1E3, 0x9F18, 0xF6CF, 0x9F19, 0xC567, 0x9F1A, 0xF6D0, 0x9F1B, 0xF6CE, 0x9F1C, 0xF879, 0x9F1E, 0xF8E9, 0x9F20, 0xB9AB, + 0x9F22, 0xEFB4, 0x9F23, 0xEFB3, 0x9F24, 0xEFB2, 0x9F25, 0xF1E4, 0x9F28, 0xF1E8, 0x9F29, 0xF1E7, 0x9F2A, 0xF1E6, 0x9F2B, 0xF1E5, + 0x9F2C, 0xC35E, 0x9F2D, 0xF3F6, 0x9F2E, 0xF5B9, 0x9F2F, 0xC4D3, 0x9F30, 0xF5B8, 0x9F31, 0xF6D1, 0x9F32, 0xF7CB, 0x9F33, 0xF7CA, + 0x9F34, 0xC5C4, 0x9F35, 0xF7C9, 0x9F36, 0xF87C, 0x9F37, 0xF87B, 0x9F38, 0xF87A, 0x9F3B, 0xBBF3, 0x9F3D, 0xECB8, 0x9F3E, 0xC24D, + 0x9F40, 0xF3F7, 0x9F41, 0xF3F8, 0x9F42, 0xF7CC, 0x9F43, 0xF87D, 0x9F46, 0xF8EA, 0x9F47, 0xF966, 0x9F48, 0xF9B9, 0x9F49, 0xF9D4, + 0x9F4A, 0xBBF4, 0x9F4B, 0xC24E, 0x9F4C, 0xF1E9, 0x9F4D, 0xF3F9, 0x9F4E, 0xF6D2, 0x9F4F, 0xF87E, 0x9F52, 0xBEA6, 0x9F54, 0xEFB5, + 0x9F55, 0xF1EA, 0x9F56, 0xF3FA, 0x9F57, 0xF3FB, 0x9F58, 0xF3FC, 0x9F59, 0xF5BE, 0x9F5B, 0xF5BA, 0x9F5C, 0xC568, 0x9F5D, 0xF5BD, + 0x9F5E, 0xF5BC, 0x9F5F, 0xC4D4, 0x9F60, 0xF5BB, 0x9F61, 0xC4D6, 0x9F63, 0xC4D5, 0x9F64, 0xF6D4, 0x9F65, 0xF6D3, 0x9F66, 0xC569, + 0x9F67, 0xC56A, 0x9F6A, 0xC5C6, 0x9F6B, 0xF7CD, 0x9F6C, 0xC5C5, 0x9F6E, 0xF8A3, 0x9F6F, 0xF8A4, 0x9F70, 0xF8A2, 0x9F71, 0xF8A1, + 0x9F72, 0xC654, 0x9F74, 0xF8EB, 0x9F75, 0xF8EC, 0x9F76, 0xF8ED, 0x9F77, 0xC653, 0x9F78, 0xF967, 0x9F79, 0xF96A, 0x9F7A, 0xF969, + 0x9F7B, 0xF968, 0x9F7E, 0xF9D3, 0x9F8D, 0xC073, 0x9F90, 0xC365, 0x9F91, 0xF5BF, 0x9F92, 0xF6D5, 0x9F94, 0xC5C7, 0x9F95, 0xF7CE, + 0x9F98, 0xF9D5, 0x9F9C, 0xC074, 0x9FA0, 0xEFB6, 0x9FA2, 0xF7CF, 0x9FA4, 0xF9A1, 0xFA0C, 0xC94A, 0xFA0D, 0xDDFC, 0xFE30, 0xA14A, + 0xFE31, 0xA157, 0xFE33, 0xA159, 0xFE34, 0xA15B, 0xFE35, 0xA15F, 0xFE36, 0xA160, 0xFE37, 0xA163, 0xFE38, 0xA164, 0xFE39, 0xA167, + 0xFE3A, 0xA168, 0xFE3B, 0xA16B, 0xFE3C, 0xA16C, 0xFE3D, 0xA16F, 0xFE3E, 0xA170, 0xFE3F, 0xA173, 0xFE40, 0xA174, 0xFE41, 0xA177, + 0xFE42, 0xA178, 0xFE43, 0xA17B, 0xFE44, 0xA17C, 0xFE49, 0xA1C6, 0xFE4A, 0xA1C7, 0xFE4B, 0xA1CA, 0xFE4C, 0xA1CB, 0xFE4D, 0xA1C8, + 0xFE4E, 0xA1C9, 0xFE4F, 0xA15C, 0xFE50, 0xA14D, 0xFE51, 0xA14E, 0xFE52, 0xA14F, 0xFE54, 0xA151, 0xFE55, 0xA152, 0xFE56, 0xA153, + 0xFE57, 0xA154, 0xFE59, 0xA17D, 0xFE5A, 0xA17E, 0xFE5B, 0xA1A1, 0xFE5C, 0xA1A2, 0xFE5D, 0xA1A3, 0xFE5E, 0xA1A4, 0xFE5F, 0xA1CC, + 0xFE60, 0xA1CD, 0xFE61, 0xA1CE, 0xFE62, 0xA1DE, 0xFE63, 0xA1DF, 0xFE64, 0xA1E0, 0xFE65, 0xA1E1, 0xFE66, 0xA1E2, 0xFE68, 0xA242, + 0xFE69, 0xA24C, 0xFE6A, 0xA24D, 0xFE6B, 0xA24E, 0xFF01, 0xA149, 0xFF03, 0xA1AD, 0xFF04, 0xA243, 0xFF05, 0xA248, 0xFF06, 0xA1AE, + 0xFF08, 0xA15D, 0xFF09, 0xA15E, 0xFF0A, 0xA1AF, 0xFF0B, 0xA1CF, 0xFF0C, 0xA141, 0xFF0D, 0xA1D0, 0xFF0E, 0xA144, 0xFF0F, 0xA1FE, + 0xFF10, 0xA2AF, 0xFF11, 0xA2B0, 0xFF12, 0xA2B1, 0xFF13, 0xA2B2, 0xFF14, 0xA2B3, 0xFF15, 0xA2B4, 0xFF16, 0xA2B5, 0xFF17, 0xA2B6, + 0xFF18, 0xA2B7, 0xFF19, 0xA2B8, 0xFF1A, 0xA147, 0xFF1B, 0xA146, 0xFF1C, 0xA1D5, 0xFF1D, 0xA1D7, 0xFF1E, 0xA1D6, 0xFF1F, 0xA148, + 0xFF20, 0xA249, 0xFF21, 0xA2CF, 0xFF22, 0xA2D0, 0xFF23, 0xA2D1, 0xFF24, 0xA2D2, 0xFF25, 0xA2D3, 0xFF26, 0xA2D4, 0xFF27, 0xA2D5, + 0xFF28, 0xA2D6, 0xFF29, 0xA2D7, 0xFF2A, 0xA2D8, 0xFF2B, 0xA2D9, 0xFF2C, 0xA2DA, 0xFF2D, 0xA2DB, 0xFF2E, 0xA2DC, 0xFF2F, 0xA2DD, + 0xFF30, 0xA2DE, 0xFF31, 0xA2DF, 0xFF32, 0xA2E0, 0xFF33, 0xA2E1, 0xFF34, 0xA2E2, 0xFF35, 0xA2E3, 0xFF36, 0xA2E4, 0xFF37, 0xA2E5, + 0xFF38, 0xA2E6, 0xFF39, 0xA2E7, 0xFF3A, 0xA2E8, 0xFF3C, 0xA240, 0xFF3F, 0xA1C4, 0xFF41, 0xA2E9, 0xFF42, 0xA2EA, 0xFF43, 0xA2EB, + 0xFF44, 0xA2EC, 0xFF45, 0xA2ED, 0xFF46, 0xA2EE, 0xFF47, 0xA2EF, 0xFF48, 0xA2F0, 0xFF49, 0xA2F1, 0xFF4A, 0xA2F2, 0xFF4B, 0xA2F3, + 0xFF4C, 0xA2F4, 0xFF4D, 0xA2F5, 0xFF4E, 0xA2F6, 0xFF4F, 0xA2F7, 0xFF50, 0xA2F8, 0xFF51, 0xA2F9, 0xFF52, 0xA2FA, 0xFF53, 0xA2FB, + 0xFF54, 0xA2FC, 0xFF55, 0xA2FD, 0xFF56, 0xA2FE, 0xFF57, 0xA340, 0xFF58, 0xA341, 0xFF59, 0xA342, 0xFF5A, 0xA343, 0xFF5B, 0xA161, + 0xFF5C, 0xA155, 0xFF5D, 0xA162, 0xFF5E, 0xA1E3, 0xFFE0, 0xA246, 0xFFE1, 0xA247, 0xFFE3, 0xA1C3, 0xFFE5, 0xA244, 0, 0 +}; + +static const WCHAR oem2uni950[] = { /* Big5 --> Unicode pairs */ + 0xA140, 0x3000, 0xA141, 0xFF0C, 0xA142, 0x3001, 0xA143, 0x3002, 0xA144, 0xFF0E, 0xA145, 0x2027, 0xA146, 0xFF1B, 0xA147, 0xFF1A, + 0xA148, 0xFF1F, 0xA149, 0xFF01, 0xA14A, 0xFE30, 0xA14B, 0x2026, 0xA14C, 0x2025, 0xA14D, 0xFE50, 0xA14E, 0xFE51, 0xA14F, 0xFE52, + 0xA150, 0x00B7, 0xA151, 0xFE54, 0xA152, 0xFE55, 0xA153, 0xFE56, 0xA154, 0xFE57, 0xA155, 0xFF5C, 0xA156, 0x2013, 0xA157, 0xFE31, + 0xA158, 0x2014, 0xA159, 0xFE33, 0xA15A, 0x2574, 0xA15B, 0xFE34, 0xA15C, 0xFE4F, 0xA15D, 0xFF08, 0xA15E, 0xFF09, 0xA15F, 0xFE35, + 0xA160, 0xFE36, 0xA161, 0xFF5B, 0xA162, 0xFF5D, 0xA163, 0xFE37, 0xA164, 0xFE38, 0xA165, 0x3014, 0xA166, 0x3015, 0xA167, 0xFE39, + 0xA168, 0xFE3A, 0xA169, 0x3010, 0xA16A, 0x3011, 0xA16B, 0xFE3B, 0xA16C, 0xFE3C, 0xA16D, 0x300A, 0xA16E, 0x300B, 0xA16F, 0xFE3D, + 0xA170, 0xFE3E, 0xA171, 0x3008, 0xA172, 0x3009, 0xA173, 0xFE3F, 0xA174, 0xFE40, 0xA175, 0x300C, 0xA176, 0x300D, 0xA177, 0xFE41, + 0xA178, 0xFE42, 0xA179, 0x300E, 0xA17A, 0x300F, 0xA17B, 0xFE43, 0xA17C, 0xFE44, 0xA17D, 0xFE59, 0xA17E, 0xFE5A, 0xA1A1, 0xFE5B, + 0xA1A2, 0xFE5C, 0xA1A3, 0xFE5D, 0xA1A4, 0xFE5E, 0xA1A5, 0x2018, 0xA1A6, 0x2019, 0xA1A7, 0x201C, 0xA1A8, 0x201D, 0xA1A9, 0x301D, + 0xA1AA, 0x301E, 0xA1AB, 0x2035, 0xA1AC, 0x2032, 0xA1AD, 0xFF03, 0xA1AE, 0xFF06, 0xA1AF, 0xFF0A, 0xA1B0, 0x203B, 0xA1B1, 0x00A7, + 0xA1B2, 0x3003, 0xA1B3, 0x25CB, 0xA1B4, 0x25CF, 0xA1B5, 0x25B3, 0xA1B6, 0x25B2, 0xA1B7, 0x25CE, 0xA1B8, 0x2606, 0xA1B9, 0x2605, + 0xA1BA, 0x25C7, 0xA1BB, 0x25C6, 0xA1BC, 0x25A1, 0xA1BD, 0x25A0, 0xA1BE, 0x25BD, 0xA1BF, 0x25BC, 0xA1C0, 0x32A3, 0xA1C1, 0x2105, + 0xA1C2, 0x00AF, 0xA1C3, 0xFFE3, 0xA1C4, 0xFF3F, 0xA1C5, 0x02CD, 0xA1C6, 0xFE49, 0xA1C7, 0xFE4A, 0xA1C8, 0xFE4D, 0xA1C9, 0xFE4E, + 0xA1CA, 0xFE4B, 0xA1CB, 0xFE4C, 0xA1CC, 0xFE5F, 0xA1CD, 0xFE60, 0xA1CE, 0xFE61, 0xA1CF, 0xFF0B, 0xA1D0, 0xFF0D, 0xA1D1, 0x00D7, + 0xA1D2, 0x00F7, 0xA1D3, 0x00B1, 0xA1D4, 0x221A, 0xA1D5, 0xFF1C, 0xA1D6, 0xFF1E, 0xA1D7, 0xFF1D, 0xA1D8, 0x2266, 0xA1D9, 0x2267, + 0xA1DA, 0x2260, 0xA1DB, 0x221E, 0xA1DC, 0x2252, 0xA1DD, 0x2261, 0xA1DE, 0xFE62, 0xA1DF, 0xFE63, 0xA1E0, 0xFE64, 0xA1E1, 0xFE65, + 0xA1E2, 0xFE66, 0xA1E3, 0xFF5E, 0xA1E4, 0x2229, 0xA1E5, 0x222A, 0xA1E6, 0x22A5, 0xA1E7, 0x2220, 0xA1E8, 0x221F, 0xA1E9, 0x22BF, + 0xA1EA, 0x33D2, 0xA1EB, 0x33D1, 0xA1EC, 0x222B, 0xA1ED, 0x222E, 0xA1EE, 0x2235, 0xA1EF, 0x2234, 0xA1F0, 0x2640, 0xA1F1, 0x2642, + 0xA1F2, 0x2295, 0xA1F3, 0x2299, 0xA1F4, 0x2191, 0xA1F5, 0x2193, 0xA1F6, 0x2190, 0xA1F7, 0x2192, 0xA1F8, 0x2196, 0xA1F9, 0x2197, + 0xA1FA, 0x2199, 0xA1FB, 0x2198, 0xA1FC, 0x2225, 0xA1FD, 0x2223, 0xA1FE, 0xFF0F, 0xA240, 0xFF3C, 0xA241, 0x2215, 0xA242, 0xFE68, + 0xA243, 0xFF04, 0xA244, 0xFFE5, 0xA245, 0x3012, 0xA246, 0xFFE0, 0xA247, 0xFFE1, 0xA248, 0xFF05, 0xA249, 0xFF20, 0xA24A, 0x2103, + 0xA24B, 0x2109, 0xA24C, 0xFE69, 0xA24D, 0xFE6A, 0xA24E, 0xFE6B, 0xA24F, 0x33D5, 0xA250, 0x339C, 0xA251, 0x339D, 0xA252, 0x339E, + 0xA253, 0x33CE, 0xA254, 0x33A1, 0xA255, 0x338E, 0xA256, 0x338F, 0xA257, 0x33C4, 0xA258, 0x00B0, 0xA259, 0x5159, 0xA25A, 0x515B, + 0xA25B, 0x515E, 0xA25C, 0x515D, 0xA25D, 0x5161, 0xA25E, 0x5163, 0xA25F, 0x55E7, 0xA260, 0x74E9, 0xA261, 0x7CCE, 0xA262, 0x2581, + 0xA263, 0x2582, 0xA264, 0x2583, 0xA265, 0x2584, 0xA266, 0x2585, 0xA267, 0x2586, 0xA268, 0x2587, 0xA269, 0x2588, 0xA26A, 0x258F, + 0xA26B, 0x258E, 0xA26C, 0x258D, 0xA26D, 0x258C, 0xA26E, 0x258B, 0xA26F, 0x258A, 0xA270, 0x2589, 0xA271, 0x253C, 0xA272, 0x2534, + 0xA273, 0x252C, 0xA274, 0x2524, 0xA275, 0x251C, 0xA276, 0x2594, 0xA277, 0x2500, 0xA278, 0x2502, 0xA279, 0x2595, 0xA27A, 0x250C, + 0xA27B, 0x2510, 0xA27C, 0x2514, 0xA27D, 0x2518, 0xA27E, 0x256D, 0xA2A1, 0x256E, 0xA2A2, 0x2570, 0xA2A3, 0x256F, 0xA2A4, 0x2550, + 0xA2A5, 0x255E, 0xA2A6, 0x256A, 0xA2A7, 0x2561, 0xA2A8, 0x25E2, 0xA2A9, 0x25E3, 0xA2AA, 0x25E5, 0xA2AB, 0x25E4, 0xA2AC, 0x2571, + 0xA2AD, 0x2572, 0xA2AE, 0x2573, 0xA2AF, 0xFF10, 0xA2B0, 0xFF11, 0xA2B1, 0xFF12, 0xA2B2, 0xFF13, 0xA2B3, 0xFF14, 0xA2B4, 0xFF15, + 0xA2B5, 0xFF16, 0xA2B6, 0xFF17, 0xA2B7, 0xFF18, 0xA2B8, 0xFF19, 0xA2B9, 0x2160, 0xA2BA, 0x2161, 0xA2BB, 0x2162, 0xA2BC, 0x2163, + 0xA2BD, 0x2164, 0xA2BE, 0x2165, 0xA2BF, 0x2166, 0xA2C0, 0x2167, 0xA2C1, 0x2168, 0xA2C2, 0x2169, 0xA2C3, 0x3021, 0xA2C4, 0x3022, + 0xA2C5, 0x3023, 0xA2C6, 0x3024, 0xA2C7, 0x3025, 0xA2C8, 0x3026, 0xA2C9, 0x3027, 0xA2CA, 0x3028, 0xA2CB, 0x3029, 0xA2CC, 0x5341, + 0xA2CD, 0x5344, 0xA2CE, 0x5345, 0xA2CF, 0xFF21, 0xA2D0, 0xFF22, 0xA2D1, 0xFF23, 0xA2D2, 0xFF24, 0xA2D3, 0xFF25, 0xA2D4, 0xFF26, + 0xA2D5, 0xFF27, 0xA2D6, 0xFF28, 0xA2D7, 0xFF29, 0xA2D8, 0xFF2A, 0xA2D9, 0xFF2B, 0xA2DA, 0xFF2C, 0xA2DB, 0xFF2D, 0xA2DC, 0xFF2E, + 0xA2DD, 0xFF2F, 0xA2DE, 0xFF30, 0xA2DF, 0xFF31, 0xA2E0, 0xFF32, 0xA2E1, 0xFF33, 0xA2E2, 0xFF34, 0xA2E3, 0xFF35, 0xA2E4, 0xFF36, + 0xA2E5, 0xFF37, 0xA2E6, 0xFF38, 0xA2E7, 0xFF39, 0xA2E8, 0xFF3A, 0xA2E9, 0xFF41, 0xA2EA, 0xFF42, 0xA2EB, 0xFF43, 0xA2EC, 0xFF44, + 0xA2ED, 0xFF45, 0xA2EE, 0xFF46, 0xA2EF, 0xFF47, 0xA2F0, 0xFF48, 0xA2F1, 0xFF49, 0xA2F2, 0xFF4A, 0xA2F3, 0xFF4B, 0xA2F4, 0xFF4C, + 0xA2F5, 0xFF4D, 0xA2F6, 0xFF4E, 0xA2F7, 0xFF4F, 0xA2F8, 0xFF50, 0xA2F9, 0xFF51, 0xA2FA, 0xFF52, 0xA2FB, 0xFF53, 0xA2FC, 0xFF54, + 0xA2FD, 0xFF55, 0xA2FE, 0xFF56, 0xA340, 0xFF57, 0xA341, 0xFF58, 0xA342, 0xFF59, 0xA343, 0xFF5A, 0xA344, 0x0391, 0xA345, 0x0392, + 0xA346, 0x0393, 0xA347, 0x0394, 0xA348, 0x0395, 0xA349, 0x0396, 0xA34A, 0x0397, 0xA34B, 0x0398, 0xA34C, 0x0399, 0xA34D, 0x039A, + 0xA34E, 0x039B, 0xA34F, 0x039C, 0xA350, 0x039D, 0xA351, 0x039E, 0xA352, 0x039F, 0xA353, 0x03A0, 0xA354, 0x03A1, 0xA355, 0x03A3, + 0xA356, 0x03A4, 0xA357, 0x03A5, 0xA358, 0x03A6, 0xA359, 0x03A7, 0xA35A, 0x03A8, 0xA35B, 0x03A9, 0xA35C, 0x03B1, 0xA35D, 0x03B2, + 0xA35E, 0x03B3, 0xA35F, 0x03B4, 0xA360, 0x03B5, 0xA361, 0x03B6, 0xA362, 0x03B7, 0xA363, 0x03B8, 0xA364, 0x03B9, 0xA365, 0x03BA, + 0xA366, 0x03BB, 0xA367, 0x03BC, 0xA368, 0x03BD, 0xA369, 0x03BE, 0xA36A, 0x03BF, 0xA36B, 0x03C0, 0xA36C, 0x03C1, 0xA36D, 0x03C3, + 0xA36E, 0x03C4, 0xA36F, 0x03C5, 0xA370, 0x03C6, 0xA371, 0x03C7, 0xA372, 0x03C8, 0xA373, 0x03C9, 0xA374, 0x3105, 0xA375, 0x3106, + 0xA376, 0x3107, 0xA377, 0x3108, 0xA378, 0x3109, 0xA379, 0x310A, 0xA37A, 0x310B, 0xA37B, 0x310C, 0xA37C, 0x310D, 0xA37D, 0x310E, + 0xA37E, 0x310F, 0xA3A1, 0x3110, 0xA3A2, 0x3111, 0xA3A3, 0x3112, 0xA3A4, 0x3113, 0xA3A5, 0x3114, 0xA3A6, 0x3115, 0xA3A7, 0x3116, + 0xA3A8, 0x3117, 0xA3A9, 0x3118, 0xA3AA, 0x3119, 0xA3AB, 0x311A, 0xA3AC, 0x311B, 0xA3AD, 0x311C, 0xA3AE, 0x311D, 0xA3AF, 0x311E, + 0xA3B0, 0x311F, 0xA3B1, 0x3120, 0xA3B2, 0x3121, 0xA3B3, 0x3122, 0xA3B4, 0x3123, 0xA3B5, 0x3124, 0xA3B6, 0x3125, 0xA3B7, 0x3126, + 0xA3B8, 0x3127, 0xA3B9, 0x3128, 0xA3BA, 0x3129, 0xA3BB, 0x02D9, 0xA3BC, 0x02C9, 0xA3BD, 0x02CA, 0xA3BE, 0x02C7, 0xA3BF, 0x02CB, + 0xA3E1, 0x20AC, 0xA440, 0x4E00, 0xA441, 0x4E59, 0xA442, 0x4E01, 0xA443, 0x4E03, 0xA444, 0x4E43, 0xA445, 0x4E5D, 0xA446, 0x4E86, + 0xA447, 0x4E8C, 0xA448, 0x4EBA, 0xA449, 0x513F, 0xA44A, 0x5165, 0xA44B, 0x516B, 0xA44C, 0x51E0, 0xA44D, 0x5200, 0xA44E, 0x5201, + 0xA44F, 0x529B, 0xA450, 0x5315, 0xA451, 0x5341, 0xA452, 0x535C, 0xA453, 0x53C8, 0xA454, 0x4E09, 0xA455, 0x4E0B, 0xA456, 0x4E08, + 0xA457, 0x4E0A, 0xA458, 0x4E2B, 0xA459, 0x4E38, 0xA45A, 0x51E1, 0xA45B, 0x4E45, 0xA45C, 0x4E48, 0xA45D, 0x4E5F, 0xA45E, 0x4E5E, + 0xA45F, 0x4E8E, 0xA460, 0x4EA1, 0xA461, 0x5140, 0xA462, 0x5203, 0xA463, 0x52FA, 0xA464, 0x5343, 0xA465, 0x53C9, 0xA466, 0x53E3, + 0xA467, 0x571F, 0xA468, 0x58EB, 0xA469, 0x5915, 0xA46A, 0x5927, 0xA46B, 0x5973, 0xA46C, 0x5B50, 0xA46D, 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0x9DDC, 0xF7BE, 0x9DD1, 0xF7BF, 0x9DDF, 0xF7C0, 0x9DE9, 0xF7C1, 0x9DD9, + 0xF7C2, 0x9DD8, 0xF7C3, 0x9DD6, 0xF7C4, 0x9DF5, 0xF7C5, 0x9DD5, 0xF7C6, 0x9DDD, 0xF7C7, 0x9EB6, 0xF7C8, 0x9EF0, 0xF7C9, 0x9F35, + 0xF7CA, 0x9F33, 0xF7CB, 0x9F32, 0xF7CC, 0x9F42, 0xF7CD, 0x9F6B, 0xF7CE, 0x9F95, 0xF7CF, 0x9FA2, 0xF7D0, 0x513D, 0xF7D1, 0x5299, + 0xF7D2, 0x58E8, 0xF7D3, 0x58E7, 0xF7D4, 0x5972, 0xF7D5, 0x5B4D, 0xF7D6, 0x5DD8, 0xF7D7, 0x882F, 0xF7D8, 0x5F4F, 0xF7D9, 0x6201, + 0xF7DA, 0x6203, 0xF7DB, 0x6204, 0xF7DC, 0x6529, 0xF7DD, 0x6525, 0xF7DE, 0x6596, 0xF7DF, 0x66EB, 0xF7E0, 0x6B11, 0xF7E1, 0x6B12, + 0xF7E2, 0x6B0F, 0xF7E3, 0x6BCA, 0xF7E4, 0x705B, 0xF7E5, 0x705A, 0xF7E6, 0x7222, 0xF7E7, 0x7382, 0xF7E8, 0x7381, 0xF7E9, 0x7383, + 0xF7EA, 0x7670, 0xF7EB, 0x77D4, 0xF7EC, 0x7C67, 0xF7ED, 0x7C66, 0xF7EE, 0x7E95, 0xF7EF, 0x826C, 0xF7F0, 0x863A, 0xF7F1, 0x8640, + 0xF7F2, 0x8639, 0xF7F3, 0x863C, 0xF7F4, 0x8631, 0xF7F5, 0x863B, 0xF7F6, 0x863E, 0xF7F7, 0x8830, 0xF7F8, 0x8832, 0xF7F9, 0x882E, + 0xF7FA, 0x8833, 0xF7FB, 0x8976, 0xF7FC, 0x8974, 0xF7FD, 0x8973, 0xF7FE, 0x89FE, 0xF840, 0x8B8C, 0xF841, 0x8B8E, 0xF842, 0x8B8B, + 0xF843, 0x8B88, 0xF844, 0x8C45, 0xF845, 0x8D19, 0xF846, 0x8E98, 0xF847, 0x8F64, 0xF848, 0x8F63, 0xF849, 0x91BC, 0xF84A, 0x9462, + 0xF84B, 0x9455, 0xF84C, 0x945D, 0xF84D, 0x9457, 0xF84E, 0x945E, 0xF84F, 0x97C4, 0xF850, 0x97C5, 0xF851, 0x9800, 0xF852, 0x9A56, + 0xF853, 0x9A59, 0xF854, 0x9B1E, 0xF855, 0x9B1F, 0xF856, 0x9B20, 0xF857, 0x9C52, 0xF858, 0x9C58, 0xF859, 0x9C50, 0xF85A, 0x9C4A, + 0xF85B, 0x9C4D, 0xF85C, 0x9C4B, 0xF85D, 0x9C55, 0xF85E, 0x9C59, 0xF85F, 0x9C4C, 0xF860, 0x9C4E, 0xF861, 0x9DFB, 0xF862, 0x9DF7, + 0xF863, 0x9DEF, 0xF864, 0x9DE3, 0xF865, 0x9DEB, 0xF866, 0x9DF8, 0xF867, 0x9DE4, 0xF868, 0x9DF6, 0xF869, 0x9DE1, 0xF86A, 0x9DEE, + 0xF86B, 0x9DE6, 0xF86C, 0x9DF2, 0xF86D, 0x9DF0, 0xF86E, 0x9DE2, 0xF86F, 0x9DEC, 0xF870, 0x9DF4, 0xF871, 0x9DF3, 0xF872, 0x9DE8, + 0xF873, 0x9DED, 0xF874, 0x9EC2, 0xF875, 0x9ED0, 0xF876, 0x9EF2, 0xF877, 0x9EF3, 0xF878, 0x9F06, 0xF879, 0x9F1C, 0xF87A, 0x9F38, + 0xF87B, 0x9F37, 0xF87C, 0x9F36, 0xF87D, 0x9F43, 0xF87E, 0x9F4F, 0xF8A1, 0x9F71, 0xF8A2, 0x9F70, 0xF8A3, 0x9F6E, 0xF8A4, 0x9F6F, + 0xF8A5, 0x56D3, 0xF8A6, 0x56CD, 0xF8A7, 0x5B4E, 0xF8A8, 0x5C6D, 0xF8A9, 0x652D, 0xF8AA, 0x66ED, 0xF8AB, 0x66EE, 0xF8AC, 0x6B13, + 0xF8AD, 0x705F, 0xF8AE, 0x7061, 0xF8AF, 0x705D, 0xF8B0, 0x7060, 0xF8B1, 0x7223, 0xF8B2, 0x74DB, 0xF8B3, 0x74E5, 0xF8B4, 0x77D5, + 0xF8B5, 0x7938, 0xF8B6, 0x79B7, 0xF8B7, 0x79B6, 0xF8B8, 0x7C6A, 0xF8B9, 0x7E97, 0xF8BA, 0x7F89, 0xF8BB, 0x826D, 0xF8BC, 0x8643, + 0xF8BD, 0x8838, 0xF8BE, 0x8837, 0xF8BF, 0x8835, 0xF8C0, 0x884B, 0xF8C1, 0x8B94, 0xF8C2, 0x8B95, 0xF8C3, 0x8E9E, 0xF8C4, 0x8E9F, + 0xF8C5, 0x8EA0, 0xF8C6, 0x8E9D, 0xF8C7, 0x91BE, 0xF8C8, 0x91BD, 0xF8C9, 0x91C2, 0xF8CA, 0x946B, 0xF8CB, 0x9468, 0xF8CC, 0x9469, + 0xF8CD, 0x96E5, 0xF8CE, 0x9746, 0xF8CF, 0x9743, 0xF8D0, 0x9747, 0xF8D1, 0x97C7, 0xF8D2, 0x97E5, 0xF8D3, 0x9A5E, 0xF8D4, 0x9AD5, + 0xF8D5, 0x9B59, 0xF8D6, 0x9C63, 0xF8D7, 0x9C67, 0xF8D8, 0x9C66, 0xF8D9, 0x9C62, 0xF8DA, 0x9C5E, 0xF8DB, 0x9C60, 0xF8DC, 0x9E02, + 0xF8DD, 0x9DFE, 0xF8DE, 0x9E07, 0xF8DF, 0x9E03, 0xF8E0, 0x9E06, 0xF8E1, 0x9E05, 0xF8E2, 0x9E00, 0xF8E3, 0x9E01, 0xF8E4, 0x9E09, + 0xF8E5, 0x9DFF, 0xF8E6, 0x9DFD, 0xF8E7, 0x9E04, 0xF8E8, 0x9EA0, 0xF8E9, 0x9F1E, 0xF8EA, 0x9F46, 0xF8EB, 0x9F74, 0xF8EC, 0x9F75, + 0xF8ED, 0x9F76, 0xF8EE, 0x56D4, 0xF8EF, 0x652E, 0xF8F0, 0x65B8, 0xF8F1, 0x6B18, 0xF8F2, 0x6B19, 0xF8F3, 0x6B17, 0xF8F4, 0x6B1A, + 0xF8F5, 0x7062, 0xF8F6, 0x7226, 0xF8F7, 0x72AA, 0xF8F8, 0x77D8, 0xF8F9, 0x77D9, 0xF8FA, 0x7939, 0xF8FB, 0x7C69, 0xF8FC, 0x7C6B, + 0xF8FD, 0x7CF6, 0xF8FE, 0x7E9A, 0xF940, 0x7E98, 0xF941, 0x7E9B, 0xF942, 0x7E99, 0xF943, 0x81E0, 0xF944, 0x81E1, 0xF945, 0x8646, + 0xF946, 0x8647, 0xF947, 0x8648, 0xF948, 0x8979, 0xF949, 0x897A, 0xF94A, 0x897C, 0xF94B, 0x897B, 0xF94C, 0x89FF, 0xF94D, 0x8B98, + 0xF94E, 0x8B99, 0xF94F, 0x8EA5, 0xF950, 0x8EA4, 0xF951, 0x8EA3, 0xF952, 0x946E, 0xF953, 0x946D, 0xF954, 0x946F, 0xF955, 0x9471, + 0xF956, 0x9473, 0xF957, 0x9749, 0xF958, 0x9872, 0xF959, 0x995F, 0xF95A, 0x9C68, 0xF95B, 0x9C6E, 0xF95C, 0x9C6D, 0xF95D, 0x9E0B, + 0xF95E, 0x9E0D, 0xF95F, 0x9E10, 0xF960, 0x9E0F, 0xF961, 0x9E12, 0xF962, 0x9E11, 0xF963, 0x9EA1, 0xF964, 0x9EF5, 0xF965, 0x9F09, + 0xF966, 0x9F47, 0xF967, 0x9F78, 0xF968, 0x9F7B, 0xF969, 0x9F7A, 0xF96A, 0x9F79, 0xF96B, 0x571E, 0xF96C, 0x7066, 0xF96D, 0x7C6F, + 0xF96E, 0x883C, 0xF96F, 0x8DB2, 0xF970, 0x8EA6, 0xF971, 0x91C3, 0xF972, 0x9474, 0xF973, 0x9478, 0xF974, 0x9476, 0xF975, 0x9475, + 0xF976, 0x9A60, 0xF977, 0x9C74, 0xF978, 0x9C73, 0xF979, 0x9C71, 0xF97A, 0x9C75, 0xF97B, 0x9E14, 0xF97C, 0x9E13, 0xF97D, 0x9EF6, + 0xF97E, 0x9F0A, 0xF9A1, 0x9FA4, 0xF9A2, 0x7068, 0xF9A3, 0x7065, 0xF9A4, 0x7CF7, 0xF9A5, 0x866A, 0xF9A6, 0x883E, 0xF9A7, 0x883D, + 0xF9A8, 0x883F, 0xF9A9, 0x8B9E, 0xF9AA, 0x8C9C, 0xF9AB, 0x8EA9, 0xF9AC, 0x8EC9, 0xF9AD, 0x974B, 0xF9AE, 0x9873, 0xF9AF, 0x9874, + 0xF9B0, 0x98CC, 0xF9B1, 0x9961, 0xF9B2, 0x99AB, 0xF9B3, 0x9A64, 0xF9B4, 0x9A66, 0xF9B5, 0x9A67, 0xF9B6, 0x9B24, 0xF9B7, 0x9E15, + 0xF9B8, 0x9E17, 0xF9B9, 0x9F48, 0xF9BA, 0x6207, 0xF9BB, 0x6B1E, 0xF9BC, 0x7227, 0xF9BD, 0x864C, 0xF9BE, 0x8EA8, 0xF9BF, 0x9482, + 0xF9C0, 0x9480, 0xF9C1, 0x9481, 0xF9C2, 0x9A69, 0xF9C3, 0x9A68, 0xF9C4, 0x9B2E, 0xF9C5, 0x9E19, 0xF9C6, 0x7229, 0xF9C7, 0x864B, + 0xF9C8, 0x8B9F, 0xF9C9, 0x9483, 0xF9CA, 0x9C79, 0xF9CB, 0x9EB7, 0xF9CC, 0x7675, 0xF9CD, 0x9A6B, 0xF9CE, 0x9C7A, 0xF9CF, 0x9E1D, + 0xF9D0, 0x7069, 0xF9D1, 0x706A, 0xF9D2, 0x9EA4, 0xF9D3, 0x9F7E, 0xF9D4, 0x9F49, 0xF9D5, 0x9F98, 0xF9D6, 0x7881, 0xF9D7, 0x92B9, + 0xF9D8, 0x88CF, 0xF9D9, 0x58BB, 0xF9DA, 0x6052, 0xF9DB, 0x7CA7, 0xF9DC, 0x5AFA, 0xF9DD, 0x2554, 0xF9DE, 0x2566, 0xF9DF, 0x2557, + 0xF9E0, 0x2560, 0xF9E1, 0x256C, 0xF9E2, 0x2563, 0xF9E3, 0x255A, 0xF9E4, 0x2569, 0xF9E5, 0x255D, 0xF9E6, 0x2552, 0xF9E7, 0x2564, + 0xF9E8, 0x2555, 0xF9E9, 0x255E, 0xF9EA, 0x256A, 0xF9EB, 0x2561, 0xF9EC, 0x2558, 0xF9ED, 0x2567, 0xF9EE, 0x255B, 0xF9EF, 0x2553, + 0xF9F0, 0x2565, 0xF9F1, 0x2556, 0xF9F2, 0x255F, 0xF9F3, 0x256B, 0xF9F4, 0x2562, 0xF9F5, 0x2559, 0xF9F6, 0x2568, 0xF9F7, 0x255C, + 0xF9F8, 0x2551, 0xF9F9, 0x2550, 0xF9FA, 0x256D, 0xF9FB, 0x256E, 0xF9FC, 0x2570, 0xF9FD, 0x256F, 0xF9FE, 0x2593, 0, 0 +}; +#endif + +#if FF_CODE_PAGE == 437 || FF_CODE_PAGE == 0 +static const WCHAR uc437[] = { /* CP437(U.S.) to Unicode conversion table */ + 0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5, + 0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9, 0x00FF, 0x00D6, 0x00DC, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192, + 0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, 0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, + 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, + 0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229, + 0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 720 || FF_CODE_PAGE == 0 +static const WCHAR uc720[] = { /* CP720(Arabic) to Unicode conversion table */ + 0x0000, 0x0000, 0x00E9, 0x00E2, 0x0000, 0x00E0, 0x0000, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0651, 0x0652, 0x00F4, 0x00A4, 0x0640, 0x00FB, 0x00F9, 0x0621, 0x0622, 0x0623, 0x0624, 0x00A3, 0x0625, 0x0626, 0x0627, + 0x0628, 0x0629, 0x062A, 0x062B, 0x062C, 0x062D, 0x062E, 0x062F, 0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, + 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, + 0x0636, 0x0637, 0x0638, 0x0639, 0x063A, 0x0641, 0x00B5, 0x0642, 0x0643, 0x0644, 0x0645, 0x0646, 0x0647, 0x0648, 0x0649, 0x064A, + 0x2261, 0x064B, 0x064C, 0x064D, 0x064E, 0x064F, 0x0650, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 737 || FF_CODE_PAGE == 0 +static const WCHAR uc737[] = { /* CP737(Greek) to Unicode conversion table */ + 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397, 0x0398, 0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F, 0x03A0, + 0x03A1, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7, 0x03A8, 0x03A9, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 0x03B8, + 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0, 0x03C1, 0x03C3, 0x03C2, 0x03C4, 0x03C5, 0x03C6, 0x03C7, 0x03C8, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, + 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, + 0x03C9, 0x03AC, 0x03AD, 0x03AE, 0x03CA, 0x03AF, 0x03CC, 0x03CD, 0x03CB, 0x03CE, 0x0386, 0x0388, 0x0389, 0x038A, 0x038C, 0x038E, + 0x038F, 0x00B1, 0x2265, 0x2264, 0x03AA, 0x03AB, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 771 || FF_CODE_PAGE == 0 +static const WCHAR uc771[] = { /* CP771(KBL) to Unicode conversion table */ + 0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417, 0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F, + 0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427, 0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F, + 0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437, 0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x2558, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, + 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x0104, 0x0105, 0x010C, 0x010D, + 0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447, 0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F, + 0x0118, 0x0119, 0x0116, 0x0117, 0x012E, 0x012F, 0x0160, 0x0161, 0x0172, 0x0173, 0x016A, 0x016B, 0x017D, 0x017E, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 775 || FF_CODE_PAGE == 0 +static const WCHAR uc775[] = { /* CP775(Baltic) to Unicode conversion table */ + 0x0106, 0x00FC, 0x00E9, 0x0101, 0x00E4, 0x0123, 0x00E5, 0x0107, 0x0142, 0x0113, 0x0156, 0x0157, 0x012B, 0x0179, 0x00C4, 0x00C5, + 0x00C9, 0x00E6, 0x00C6, 0x014D, 0x00F6, 0x0122, 0x00A2, 0x015A, 0x015B, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x00A4, + 0x0100, 0x012A, 0x00F3, 0x017B, 0x017C, 0x017A, 0x201D, 0x00A6, 0x00A9, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x0141, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x0104, 0x010C, 0x0118, 0x0116, 0x2563, 0x2551, 0x2557, 0x255D, 0x012E, 0x0160, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x0172, 0x016A, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x017D, + 0x0105, 0x010D, 0x0119, 0x0117, 0x012F, 0x0161, 0x0173, 0x016B, 0x017E, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, + 0x00D3, 0x00DF, 0x014C, 0x0143, 0x00F5, 0x00D5, 0x00B5, 0x0144, 0x0136, 0x0137, 0x013B, 0x013C, 0x0146, 0x0112, 0x0145, 0x2019, + 0x00AD, 0x00B1, 0x201C, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x201E, 0x00B0, 0x2219, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 850 || FF_CODE_PAGE == 0 +static const WCHAR uc850[] = { /* CP850(Latin 1) to Unicode conversion table */ + 0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5, + 0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9, 0x00FF, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x0192, + 0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, 0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0, 0x00A9, 0x2563, 0x2551, 0x2557, 0x255D, 0x00A2, 0x00A5, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4, + 0x00F0, 0x00D0, 0x00CA, 0x00CB, 0x00C8, 0x0131, 0x00CD, 0x00CE, 0x00CF, 0x2518, 0x250C, 0x2588, 0x2584, 0x00A6, 0x00CC, 0x2580, + 0x00D3, 0x00DF, 0x00D4, 0x00D2, 0x00F5, 0x00D5, 0x00B5, 0x00FE, 0x00DE, 0x00DA, 0x00DB, 0x00D9, 0x00FD, 0x00DD, 0x00AF, 0x00B4, + 0x00AD, 0x00B1, 0x2017, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x00B8, 0x00B0, 0x00A8, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 852 || FF_CODE_PAGE == 0 +static const WCHAR uc852[] = { /* CP852(Latin 2) to Unicode conversion table */ + 0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x016F, 0x0107, 0x00E7, 0x0142, 0x00EB, 0x0150, 0x0151, 0x00EE, 0x0179, 0x00C4, 0x0106, + 0x00C9, 0x0139, 0x013A, 0x00F4, 0x00F6, 0x013D, 0x013E, 0x015A, 0x015B, 0x00D6, 0x00DC, 0x0164, 0x0165, 0x0141, 0x00D7, 0x010D, + 0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x0104, 0x0105, 0x017D, 0x017E, 0x0118, 0x0119, 0x00AC, 0x017A, 0x010C, 0x015F, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x011A, 0x015E, 0x2563, 0x2551, 0x2557, 0x255D, 0x017B, 0x017C, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x0102, 0x0103, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4, + 0x0111, 0x0110, 0x010E, 0x00CB, 0x010F, 0x0147, 0x00CD, 0x00CE, 0x011B, 0x2518, 0x250C, 0x2588, 0x2584, 0x0162, 0x016E, 0x2580, + 0x00D3, 0x00DF, 0x00D4, 0x0143, 0x0144, 0x0148, 0x0160, 0x0161, 0x0154, 0x00DA, 0x0155, 0x0170, 0x00FD, 0x00DD, 0x0163, 0x00B4, + 0x00AD, 0x02DD, 0x02DB, 0x02C7, 0x02D8, 0x00A7, 0x00F7, 0x00B8, 0x00B0, 0x00A8, 0x02D9, 0x0171, 0x0158, 0x0159, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 855 || FF_CODE_PAGE == 0 +static const WCHAR uc855[] = { /* CP855(Cyrillic) to Unicode conversion table */ + 0x0452, 0x0402, 0x0453, 0x0403, 0x0451, 0x0401, 0x0454, 0x0404, 0x0455, 0x0405, 0x0456, 0x0406, 0x0457, 0x0407, 0x0458, 0x0408, + 0x0459, 0x0409, 0x045A, 0x040A, 0x045B, 0x040B, 0x045C, 0x040C, 0x045E, 0x040E, 0x045F, 0x040F, 0x044E, 0x042E, 0x044A, 0x042A, + 0x0430, 0x0410, 0x0431, 0x0411, 0x0446, 0x0426, 0x0434, 0x0414, 0x0435, 0x0415, 0x0444, 0x0424, 0x0433, 0x0413, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x0445, 0x0425, 0x0438, 0x0418, 0x2563, 0x2551, 0x2557, 0x255D, 0x0439, 0x0419, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x043A, 0x041A, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4, + 0x043B, 0x041B, 0x043C, 0x041C, 0x043D, 0x041D, 0x043E, 0x041E, 0x043F, 0x2518, 0x250C, 0x2588, 0x2584, 0x041F, 0x044F, 0x2580, + 0x042F, 0x0440, 0x0420, 0x0441, 0x0421, 0x0442, 0x0422, 0x0443, 0x0423, 0x0436, 0x0416, 0x0432, 0x0412, 0x044C, 0x042C, 0x2116, + 0x00AD, 0x044B, 0x042B, 0x0437, 0x0417, 0x0448, 0x0428, 0x044D, 0x042D, 0x0449, 0x0429, 0x0447, 0x0427, 0x00A7, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 857 || FF_CODE_PAGE == 0 +static const WCHAR uc857[] = { /* CP857(Turkish) to Unicode conversion table */ + 0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x0131, 0x00C4, 0x00C5, + 0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9, 0x0130, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x015E, 0x015F, + 0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x011E, 0x011F, 0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0, 0x00A9, 0x2563, 0x2551, 0x2557, 0x255D, 0x00A2, 0x00A5, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4, + 0x00BA, 0x00AA, 0x00CA, 0x00CB, 0x00C8, 0x0000, 0x00CD, 0x00CE, 0x00CF, 0x2518, 0x250C, 0x2588, 0x2584, 0x00A6, 0x00CC, 0x2580, + 0x00D3, 0x00DF, 0x00D4, 0x00D2, 0x00F5, 0x00D5, 0x00B5, 0x0000, 0x00D7, 0x00DA, 0x00DB, 0x00D9, 0x00EC, 0x00FF, 0x00AF, 0x00B4, + 0x00AD, 0x00B1, 0x0000, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x00B8, 0x00B0, 0x00A8, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 860 || FF_CODE_PAGE == 0 +static const WCHAR uc860[] = { /* CP860(Portuguese) to Unicode conversion table */ + 0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E3, 0x00E0, 0x00C1, 0x00E7, 0x00EA, 0x00CA, 0x00E8, 0x00CD, 0x00D4, 0x00EC, 0x00C3, 0x00C2, + 0x00C9, 0x00C0, 0x00C8, 0x00F4, 0x00F5, 0x00F2, 0x00DA, 0x00F9, 0x00CC, 0x00D5, 0x00DC, 0x00A2, 0x00A3, 0x00D9, 0x20A7, 0x00D3, + 0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, 0x00BF, 0x00D2, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x2558, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, + 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, + 0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229, + 0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 861 || FF_CODE_PAGE == 0 +static const WCHAR uc861[] = { /* CP861(Icelandic) to Unicode conversion table */ + 0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E6, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00D0, 0x00F0, 0x00DE, 0x00C4, 0x00C5, + 0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00FE, 0x00FB, 0x00DD, 0x00FD, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x20A7, 0x0192, + 0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00C1, 0x00CD, 0x00D3, 0x00DA, 0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, + 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, + 0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229, + 0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 862 || FF_CODE_PAGE == 0 +static const WCHAR uc862[] = { /* CP862(Hebrew) to Unicode conversion table */ + 0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7, 0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF, + 0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7, 0x05E8, 0x05E9, 0x05EA, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192, + 0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, 0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, + 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, + 0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229, + 0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 863 || FF_CODE_PAGE == 0 +static const WCHAR uc863[] = { /* CP863(Canadian French) to Unicode conversion table */ + 0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00C2, 0x00E0, 0x00B6, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x2017, 0x00C0, + 0x00C9, 0x00C8, 0x00CA, 0x00F4, 0x00CB, 0x00CF, 0x00FB, 0x00F9, 0x00A4, 0x00D4, 0x00DC, 0x00A2, 0x00A3, 0x00D9, 0x00DB, 0x0192, + 0x00A6, 0x00B4, 0x00F3, 0x00FA, 0x00A8, 0x00BB, 0x00B3, 0x00AF, 0x00CE, 0x3210, 0x00AC, 0x00BD, 0x00BC, 0x00BE, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, + 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, + 0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2219, + 0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 864 || FF_CODE_PAGE == 0 +static const WCHAR uc864[] = { /* CP864(Arabic) to Unicode conversion table */ + 0x00B0, 0x00B7, 0x2219, 0x221A, 0x2592, 0x2500, 0x2502, 0x253C, 0x2524, 0x252C, 0x251C, 0x2534, 0x2510, 0x250C, 0x2514, 0x2518, + 0x03B2, 0x221E, 0x03C6, 0x00B1, 0x00BD, 0x00BC, 0x2248, 0x00AB, 0x00BB, 0xFEF7, 0xFEF8, 0x0000, 0x0000, 0xFEFB, 0xFEFC, 0x0000, + 0x00A0, 0x00AD, 0xFE82, 0x00A3, 0x00A4, 0xFE84, 0x0000, 0x20AC, 0xFE8E, 0xFE8F, 0xFE95, 0xFE99, 0x060C, 0xFE9D, 0xFEA1, 0xFEA5, + 0x0660, 0x0661, 0x0662, 0x0663, 0x0664, 0x0665, 0x0666, 0x0667, 0x0668, 0x0669, 0xFED1, 0x061B, 0xFEB1, 0xFEB5, 0xFEB9, 0x061F, + 0x00A2, 0xFE80, 0xFE81, 0xFE83, 0xFE85, 0xFECA, 0xFE8B, 0xFE8D, 0xFE91, 0xFE93, 0xFE97, 0xFE9B, 0xFE9F, 0xFEA3, 0xFEA7, 0xFEA9, + 0xFEAB, 0xFEAD, 0xFEAF, 0xFEB3, 0xFEB7, 0xFEBB, 0xFEBF, 0xFEC1, 0xFEC5, 0xFECB, 0xFECF, 0x00A6, 0x00AC, 0x00F7, 0x00D7, 0xFEC9, + 0x0640, 0xFED3, 0xFED7, 0xFEDB, 0xFEDF, 0xFEE3, 0xFEE7, 0xFEEB, 0xFEED, 0xFEEF, 0xFEF3, 0xFEBD, 0xFECC, 0xFECE, 0xFECD, 0xFEE1, + 0xFE7D, 0x0651, 0xFEE5, 0xFEE9, 0xFEEC, 0xFEF0, 0xFEF2, 0xFED0, 0xFED5, 0xFEF5, 0xFEF6, 0xFEDD, 0xFED9, 0xFEF1, 0x25A0, 0x0000 +}; +#endif +#if FF_CODE_PAGE == 865 || FF_CODE_PAGE == 0 +static const WCHAR uc865[] = { /* CP865(Nordic) to Unicode conversion table */ + 0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5, + 0x00C5, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9, 0x00FF, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x20A7, 0x0192, + 0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, 0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00A4, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x2558, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, + 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, + 0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229, + 0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 866 || FF_CODE_PAGE == 0 +static const WCHAR uc866[] = { /* CP866(Russian) to Unicode conversion table */ + 0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417, 0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F, + 0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427, 0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F, + 0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437, 0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, + 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, + 0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447, 0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F, + 0x0401, 0x0451, 0x0404, 0x0454, 0x0407, 0x0457, 0x040E, 0x045E, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x2116, 0x00A4, 0x25A0, 0x00A0 +}; +#endif +#if FF_CODE_PAGE == 869 || FF_CODE_PAGE == 0 +static const WCHAR uc869[] = { /* CP869(Greek 2) to Unicode conversion table */ + 0x00B7, 0x00B7, 0x00B7, 0x00B7, 0x00B7, 0x00B7, 0x0386, 0x00B7, 0x00B7, 0x00AC, 0x00A6, 0x2018, 0x2019, 0x0388, 0x2015, 0x0389, + 0x038A, 0x03AA, 0x038C, 0x00B7, 0x00B7, 0x038E, 0x03AB, 0x00A9, 0x038F, 0x00B2, 0x00B3, 0x03AC, 0x00A3, 0x03AD, 0x03AE, 0x03AF, + 0x03CA, 0x0390, 0x03CC, 0x03CD, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397, 0x00BD, 0x0398, 0x0399, 0x00AB, 0x00BB, + 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x039A, 0x039B, 0x039C, 0x039D, 0x2563, 0x2551, 0x2557, 0x255D, 0x039E, 0x039F, 0x2510, + 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x0A30, 0x03A1, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x03A3, + 0x03A4, 0x03A5, 0x03A6, 0x03A7, 0x03A8, 0x03A9, 0x03B1, 0x03B2, 0x03B3, 0x2518, 0x250C, 0x2588, 0x2584, 0x03B4, 0x03B5, 0x2580, + 0x03B6, 0x03B7, 0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0, 0x03C1, 0x03C3, 0x03C2, 0x03C4, 0x0384, + 0x00AD, 0x00B1, 0x03C5, 0x03C6, 0x03C7, 0x00A7, 0x03C8, 0x0385, 0x00B0, 0x00A8, 0x03C9, 0x03CB, 0x03B0, 0x03CE, 0x25A0, 0x00A0 +}; +#endif + + + + +/*------------------------------------------------------------------------*/ +/* OEM <==> Unicode conversions for static code page configuration */ +/* SBCS fixed code page */ +/*------------------------------------------------------------------------*/ + +#if FF_CODE_PAGE != 0 && FF_CODE_PAGE < 900 +WCHAR ff_uni2oem ( /* Returns OEM code character, zero on error */ + DWORD uni, /* UTF-16 encoded character to be converted */ + WORD cp /* Code page for the conversion */ +) +{ + WCHAR c = 0; + const WCHAR *p = CVTBL(uc, FF_CODE_PAGE); + + + if (uni < 0x80) { /* ASCII? */ + c = (WCHAR)uni; + + } else { /* Non-ASCII */ + if (uni < 0x10000 && cp == FF_CODE_PAGE) { /* Is it in BMP and valid code page? */ + for (c = 0; c < 0x80 && uni != p[c]; c++) ; + c = (c + 0x80) & 0xFF; + } + } + + return c; +} + +WCHAR ff_oem2uni ( /* Returns Unicode character in UTF-16, zero on error */ + WCHAR oem, /* OEM code to be converted */ + WORD cp /* Code page for the conversion */ +) +{ + WCHAR c = 0; + const WCHAR *p = CVTBL(uc, FF_CODE_PAGE); + + + if (oem < 0x80) { /* ASCII? */ + c = oem; + + } else { /* Extended char */ + if (cp == FF_CODE_PAGE) { /* Is it a valid code page? */ + if (oem < 0x100) c = p[oem - 0x80]; + } + } + + return c; +} + +#endif + + + +/*------------------------------------------------------------------------*/ +/* OEM <==> Unicode conversions for static code page configuration */ +/* DBCS fixed code page */ +/*------------------------------------------------------------------------*/ + +#if FF_CODE_PAGE >= 900 +WCHAR ff_uni2oem ( /* Returns OEM code character, zero on error */ + DWORD uni, /* UTF-16 encoded character to be converted */ + WORD cp /* Code page for the conversion */ +) +{ + const WCHAR *p; + WCHAR c = 0, uc; + UINT i = 0, n, li, hi; + + + if (uni < 0x80) { /* ASCII? */ + c = (WCHAR)uni; + + } else { /* Non-ASCII */ + if (uni < 0x10000 && cp == FF_CODE_PAGE) { /* Is it in BMP and valid code page? */ + uc = (WCHAR)uni; + p = CVTBL(uni2oem, FF_CODE_PAGE); + hi = sizeof CVTBL(uni2oem, FF_CODE_PAGE) / 4 - 1; + li = 0; + for (n = 16; n; n--) { + i = li + (hi - li) / 2; + if (uc == p[i * 2]) break; + if (uc > p[i * 2]) { + li = i; + } else { + hi = i; + } + } + if (n != 0) c = p[i * 2 + 1]; + } + } + + return c; +} + + +WCHAR ff_oem2uni ( /* Returns Unicode character in UTF-16, zero on error */ + WCHAR oem, /* OEM code to be converted */ + WORD cp /* Code page for the conversion */ +) +{ + const WCHAR *p; + WCHAR c = 0; + UINT i = 0, n, li, hi; + + + if (oem < 0x80) { /* ASCII? */ + c = oem; + + } else { /* Extended char */ + if (cp == FF_CODE_PAGE) { /* Is it valid code page? */ + p = CVTBL(oem2uni, FF_CODE_PAGE); + hi = sizeof CVTBL(oem2uni, FF_CODE_PAGE) / 4 - 1; + li = 0; + for (n = 16; n; n--) { + i = li + (hi - li) / 2; + if (oem == p[i * 2]) break; + if (oem > p[i * 2]) { + li = i; + } else { + hi = i; + } + } + if (n != 0) c = p[i * 2 + 1]; + } + } + + return c; +} +#endif + + + +/*------------------------------------------------------------------------*/ +/* OEM <==> Unicode conversions for dynamic code page configuration */ +/*------------------------------------------------------------------------*/ + +#if FF_CODE_PAGE == 0 + +static const WORD cp_code[] = { 437, 720, 737, 771, 775, 850, 852, 855, 857, 860, 861, 862, 863, 864, 865, 866, 869, 0}; +static const WCHAR* const cp_table[] = {uc437, uc720, uc737, uc771, uc775, uc850, uc852, uc855, uc857, uc860, uc861, uc862, uc863, uc864, uc865, uc866, uc869, 0}; + + +WCHAR ff_uni2oem ( /* Returns OEM code character, zero on error */ + DWORD uni, /* UTF-16 encoded character to be converted */ + WORD cp /* Code page for the conversion */ +) +{ + const WCHAR *p; + WCHAR c = 0, uc; + UINT i, n, li, hi; + + + if (uni < 0x80) { /* ASCII? */ + c = (WCHAR)uni; + + } else { /* Non-ASCII */ + if (uni < 0x10000) { /* Is it in BMP? */ + uc = (WCHAR)uni; + p = 0; + if (cp < 900) { /* SBCS */ + for (i = 0; cp_code[i] != 0 && cp_code[i] != cp; i++) ; /* Get conversion table */ + p = cp_table[i]; + if (p) { /* Is it valid code page ? */ + for (c = 0; c < 0x80 && uc != p[c]; c++) ; /* Find OEM code in the table */ + c = (c + 0x80) & 0xFF; + } + } else { /* DBCS */ + switch (cp) { /* Get conversion table */ + case 932 : p = uni2oem932; hi = sizeof uni2oem932 / 4 - 1; break; + case 936 : p = uni2oem936; hi = sizeof uni2oem936 / 4 - 1; break; + case 949 : p = uni2oem949; hi = sizeof uni2oem949 / 4 - 1; break; + case 950 : p = uni2oem950; hi = sizeof uni2oem950 / 4 - 1; break; + } + if (p) { /* Is it valid code page? */ + li = 0; + for (n = 16; n; n--) { /* Find OEM code */ + i = li + (hi - li) / 2; + if (uc == p[i * 2]) break; + if (uc > p[i * 2]) { + li = i; + } else { + hi = i; + } + } + if (n != 0) c = p[i * 2 + 1]; + } + } + } + } + + return c; +} + + +WCHAR ff_oem2uni ( /* Returns Unicode character in UTF-16, zero on error */ + WCHAR oem, /* OEM code to be converted (DBC if >=0x100) */ + WORD cp /* Code page for the conversion */ +) +{ + const WCHAR *p; + WCHAR c = 0; + UINT i, n, li, hi; + + + if (oem < 0x80) { /* ASCII? */ + c = oem; + + } else { /* Extended char */ + p = 0; + if (cp < 900) { /* SBCS */ + for (i = 0; cp_code[i] != 0 && cp_code[i] != cp; i++) ; /* Get table */ + p = cp_table[i]; + if (p) { /* Is it a valid CP ? */ + if (oem < 0x100) c = p[oem - 0x80]; + } + } else { /* DBCS */ + switch (cp) { + case 932 : p = oem2uni932; hi = sizeof oem2uni932 / 4 - 1; break; + case 936 : p = oem2uni936; hi = sizeof oem2uni936 / 4 - 1; break; + case 949 : p = oem2uni949; hi = sizeof oem2uni949 / 4 - 1; break; + case 950 : p = oem2uni950; hi = sizeof oem2uni950 / 4 - 1; break; + } + if (p) { + li = 0; + for (n = 16; n; n--) { + i = li + (hi - li) / 2; + if (oem == p[i * 2]) break; + if (oem > p[i * 2]) { + li = i; + } else { + hi = i; + } + } + if (n != 0) c = p[i * 2 + 1]; + } + } + } + + return c; +} +#endif + + + +/*------------------------------------------------------------------------*/ +/* Unicode up-case conversion */ +/*------------------------------------------------------------------------*/ + +DWORD ff_wtoupper ( /* Returns up-converted code point */ + DWORD uni /* Unicode code point to be up-converted */ +) +{ + const WORD *p; + WORD uc, bc, nc, cmd; + static const WORD cvt1[] = { /* Compressed up conversion table for U+0000 - U+0FFF */ + /* Basic Latin */ + 0x0061,0x031A, + /* Latin-1 Supplement */ + 0x00E0,0x0317, + 0x00F8,0x0307, + 0x00FF,0x0001,0x0178, + /* Latin Extended-A */ + 0x0100,0x0130, + 0x0132,0x0106, + 0x0139,0x0110, + 0x014A,0x012E, + 0x0179,0x0106, + /* Latin Extended-B */ + 0x0180,0x004D,0x0243,0x0181,0x0182,0x0182,0x0184,0x0184,0x0186,0x0187,0x0187,0x0189,0x018A,0x018B,0x018B,0x018D,0x018E,0x018F,0x0190,0x0191,0x0191,0x0193,0x0194,0x01F6,0x0196,0x0197,0x0198,0x0198,0x023D,0x019B,0x019C,0x019D,0x0220,0x019F,0x01A0,0x01A0,0x01A2,0x01A2,0x01A4,0x01A4,0x01A6,0x01A7,0x01A7,0x01A9,0x01AA,0x01AB,0x01AC,0x01AC,0x01AE,0x01AF,0x01AF,0x01B1,0x01B2,0x01B3,0x01B3,0x01B5,0x01B5,0x01B7,0x01B8,0x01B8,0x01BA,0x01BB,0x01BC,0x01BC,0x01BE,0x01F7,0x01C0,0x01C1,0x01C2,0x01C3,0x01C4,0x01C5,0x01C4,0x01C7,0x01C8,0x01C7,0x01CA,0x01CB,0x01CA, + 0x01CD,0x0110, + 0x01DD,0x0001,0x018E, + 0x01DE,0x0112, + 0x01F3,0x0003,0x01F1,0x01F4,0x01F4, + 0x01F8,0x0128, + 0x0222,0x0112, + 0x023A,0x0009,0x2C65,0x023B,0x023B,0x023D,0x2C66,0x023F,0x0240,0x0241,0x0241, + 0x0246,0x010A, + /* IPA Extensions */ + 0x0253,0x0040,0x0181,0x0186,0x0255,0x0189,0x018A,0x0258,0x018F,0x025A,0x0190,0x025C,0x025D,0x025E,0x025F,0x0193,0x0261,0x0262,0x0194,0x0264,0x0265,0x0266,0x0267,0x0197,0x0196,0x026A,0x2C62,0x026C,0x026D,0x026E,0x019C,0x0270,0x0271,0x019D,0x0273,0x0274,0x019F,0x0276,0x0277,0x0278,0x0279,0x027A,0x027B,0x027C,0x2C64,0x027E,0x027F,0x01A6,0x0281,0x0282,0x01A9,0x0284,0x0285,0x0286,0x0287,0x01AE,0x0244,0x01B1,0x01B2,0x0245,0x028D,0x028E,0x028F,0x0290,0x0291,0x01B7, + /* Greek, Coptic */ + 0x037B,0x0003,0x03FD,0x03FE,0x03FF, + 0x03AC,0x0004,0x0386,0x0388,0x0389,0x038A, + 0x03B1,0x0311, + 0x03C2,0x0002,0x03A3,0x03A3, + 0x03C4,0x0308, + 0x03CC,0x0003,0x038C,0x038E,0x038F, + 0x03D8,0x0118, + 0x03F2,0x000A,0x03F9,0x03F3,0x03F4,0x03F5,0x03F6,0x03F7,0x03F7,0x03F9,0x03FA,0x03FA, + /* Cyrillic */ + 0x0430,0x0320, + 0x0450,0x0710, + 0x0460,0x0122, + 0x048A,0x0136, + 0x04C1,0x010E, + 0x04CF,0x0001,0x04C0, + 0x04D0,0x0144, + /* Armenian */ + 0x0561,0x0426, + + 0x0000 /* EOT */ + }; + static const WORD cvt2[] = { /* Compressed up conversion table for U+1000 - U+FFFF */ + /* Phonetic Extensions */ + 0x1D7D,0x0001,0x2C63, + /* Latin Extended Additional */ + 0x1E00,0x0196, + 0x1EA0,0x015A, + /* Greek Extended */ + 0x1F00,0x0608, + 0x1F10,0x0606, + 0x1F20,0x0608, + 0x1F30,0x0608, + 0x1F40,0x0606, + 0x1F51,0x0007,0x1F59,0x1F52,0x1F5B,0x1F54,0x1F5D,0x1F56,0x1F5F, + 0x1F60,0x0608, + 0x1F70,0x000E,0x1FBA,0x1FBB,0x1FC8,0x1FC9,0x1FCA,0x1FCB,0x1FDA,0x1FDB,0x1FF8,0x1FF9,0x1FEA,0x1FEB,0x1FFA,0x1FFB, + 0x1F80,0x0608, + 0x1F90,0x0608, + 0x1FA0,0x0608, + 0x1FB0,0x0004,0x1FB8,0x1FB9,0x1FB2,0x1FBC, + 0x1FCC,0x0001,0x1FC3, + 0x1FD0,0x0602, + 0x1FE0,0x0602, + 0x1FE5,0x0001,0x1FEC, + 0x1FF3,0x0001,0x1FFC, + /* Letterlike Symbols */ + 0x214E,0x0001,0x2132, + /* Number forms */ + 0x2170,0x0210, + 0x2184,0x0001,0x2183, + /* Enclosed Alphanumerics */ + 0x24D0,0x051A, + 0x2C30,0x042F, + /* Latin Extended-C */ + 0x2C60,0x0102, + 0x2C67,0x0106, 0x2C75,0x0102, + /* Coptic */ + 0x2C80,0x0164, + /* Georgian Supplement */ + 0x2D00,0x0826, + /* Full-width */ + 0xFF41,0x031A, + + 0x0000 /* EOT */ + }; + + + if (uni < 0x10000) { /* Is it in BMP? */ + uc = (WORD)uni; + p = uc < 0x1000 ? cvt1 : cvt2; + for (;;) { + bc = *p++; /* Get the block base */ + if (bc == 0 || uc < bc) break; /* Not matched? */ + nc = *p++; cmd = nc >> 8; nc &= 0xFF; /* Get processing command and block size */ + if (uc < bc + nc) { /* In the block? */ + switch (cmd) { + case 0: uc = p[uc - bc]; break; /* Table conversion */ + case 1: uc -= (uc - bc) & 1; break; /* Case pairs */ + case 2: uc -= 16; break; /* Shift -16 */ + case 3: uc -= 32; break; /* Shift -32 */ + case 4: uc -= 48; break; /* Shift -48 */ + case 5: uc -= 26; break; /* Shift -26 */ + case 6: uc += 8; break; /* Shift +8 */ + case 7: uc -= 80; break; /* Shift -80 */ + case 8: uc -= 0x1C60; break; /* Shift -0x1C60 */ + } + break; + } + if (cmd == 0) p += nc; /* Skip table if needed */ + } + uni = uc; + } + + return uni; +} + + +#endif /* #if FF_USE_LFN */ diff --git a/middleware/fatfs/source/fsl_sd_disk/fsl_sd_disk.c b/middleware/fatfs/source/fsl_sd_disk/fsl_sd_disk.c new file mode 100644 index 0000000..d38e565 --- /dev/null +++ b/middleware/fatfs/source/fsl_sd_disk/fsl_sd_disk.c @@ -0,0 +1,146 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include "ffconf.h" +/* This fatfs subcomponent is disabled by default + * To enable it, define following macro in ffconf.h */ +#ifdef SD_DISK_ENABLE + +#include +#include +#include +#include "fsl_sd_disk.h" + +/******************************************************************************* + * Definitons + ******************************************************************************/ + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/*! @brief Card descriptor */ +sd_card_t g_sd; + +/******************************************************************************* + * Code + ******************************************************************************/ +DRESULT sd_disk_write(BYTE pdrv, const BYTE* buff, LBA_t sector, UINT count) +{ + if (pdrv != SDDISK) + { + return RES_PARERR; + } + + if (kStatus_Success != SD_WriteBlocks(&g_sd, buff, sector, count)) + { + return RES_ERROR; + } + + return RES_OK; +} + +DRESULT sd_disk_read(BYTE pdrv, BYTE* buff, LBA_t sector, UINT count) +{ + if (pdrv != SDDISK) + { + return RES_PARERR; + } + + if (kStatus_Success != SD_ReadBlocks(&g_sd, buff, sector, count)) + { + return RES_ERROR; + } + + return RES_OK; +} + +DRESULT sd_disk_ioctl(BYTE pdrv, BYTE cmd, void* buff) +{ + DRESULT result = RES_OK; + + if (pdrv != SDDISK) + { + return RES_PARERR; + } + + switch (cmd) + { + case GET_SECTOR_COUNT: + if (buff) + { + *(uint32_t *)buff = g_sd.blockCount; + } + else + { + result = RES_PARERR; + } + break; + case GET_SECTOR_SIZE: + if (buff) + { + *(uint32_t *)buff = g_sd.blockSize; + } + else + { + result = RES_PARERR; + } + break; + case GET_BLOCK_SIZE: + if (buff) + { + *(uint32_t *)buff = g_sd.csd.eraseSectorSize; + } + else + { + result = RES_PARERR; + } + break; + case CTRL_SYNC: + result = RES_OK; + break; + default: + result = RES_PARERR; + break; + } + + return result; +} + +DSTATUS sd_disk_status(BYTE pdrv) +{ + if (pdrv != SDDISK) + { + return STA_NOINIT; + } + + return 0; +} + +DSTATUS sd_disk_initialize(BYTE pdrv) +{ + if (pdrv != SDDISK) + { + return STA_NOINIT; + } + + if (kStatus_Success != SD_Init(&g_sd)) + { + SD_Deinit(&g_sd); + memset(&g_sd, 0U, sizeof(g_sd)); + return STA_NOINIT; + } + + return RES_OK; +} +#endif /* SD_DISK_ENABLE */ diff --git a/middleware/fatfs/source/fsl_sd_disk/fsl_sd_disk.h b/middleware/fatfs/source/fsl_sd_disk/fsl_sd_disk.h new file mode 100644 index 0000000..9b61829 --- /dev/null +++ b/middleware/fatfs/source/fsl_sd_disk/fsl_sd_disk.h @@ -0,0 +1,105 @@ + /* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef _FSL_SD_DISK_H_ +#define _FSL_SD_DISK_H_ + +#include +#include "ff.h" +#include "diskio.h" +#include "fsl_sd.h" + +/*! + * @addtogroup SD Disk + * @{ + */ + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +#define CD_USING_GPIO + +/******************************************************************************* + * Variables + ******************************************************************************/ +extern sd_card_t g_sd; /* sd card descriptor */ + +/************************************************************************************************* + * API + ************************************************************************************************/ + +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name SD Disk Function + * @{ + */ + +/*! + * @brief Initializes SD disk. + * + * @param pdrv Physical drive number. + * @retval STA_NOINIT Failed. + * @retval RES_OK Success. + */ +DSTATUS sd_disk_initialize(BYTE pdrv); + +/*! + * Gets SD disk status + * + * @param pdrv Physical drive number. + * @retval STA_NOINIT Failed. + * @retval RES_OK Success. + */ +DSTATUS sd_disk_status(BYTE pdrv); + +/*! + * @brief Reads SD disk. + * + * @param pdrv Physical drive number. + * @param buff The data buffer pointer to store read content. + * @param sector The start sector number to be read. + * @param count The sector count to be read. + * @retval RES_PARERR Failed. + * @retval RES_OK Success. + */ +DRESULT sd_disk_read(BYTE pdrv, BYTE* buff, LBA_t sector, UINT count); + +/*! + * @brief Writes SD disk. + * + * @param pdrv Physical drive number. + * @param buff The data buffer pointer to store write content. + * @param sector The start sector number to be written. + * @param count The sector count to be written. + * @retval RES_PARERR Failed. + * @retval RES_OK Success. + */ +DRESULT sd_disk_write(BYTE pdrv, const BYTE* buff, LBA_t sector, UINT count); + +/*! + * @brief SD disk IO operation. + * + * @param pdrv Physical drive number. + * @param cmd The command to be set. + * @param buff The buffer to store command result. + * @retval RES_PARERR Failed. + * @retval RES_OK Success. + */ +DRESULT sd_disk_ioctl(BYTE pdrv, BYTE cmd, void* buff); + +/* @} */ +#if defined(__cplusplus) +} +#endif + +#endif /* _FSL_SD_DISK_H_ */ diff --git a/middleware/lwip/BUILDING b/middleware/lwip/BUILDING new file mode 100644 index 0000000..8202f5f --- /dev/null +++ b/middleware/lwip/BUILDING @@ -0,0 +1,107 @@ +Building lwIP +============= + +lwIP uses a CMake based build system. + +The CMake files in this project are designed to +be included into your own CMake files. They are +mainly variable definitions containing a list of +source files and predefined static libraries to +be linked against application code. + +1) lwIP sources: + src/Filelists.cmake provides file lists containing + the lwIP core library. + The file also contains two static libraries, lwipcore + and lwipallapps, where you can link your app against. + This is the file that is useful to all lwIP users. + +2) Example applications: + contrib/Filelists.cmake provides several file lists + containing the example applications. + The file also contains several static libraries + for these example apps. + This file is only useful for you, if you can use one + of the examples in your application, which is normally + not the case. + +3) OS/platform port: + Usually the OS port needs to be provided by the user. + If a port to Linux, Windows or MacOS is useful for + you, you can use + contrib/ports/{win32, unix}/Filelists.cmake + that contains file lists and libraries for + these operating systems. + +VARIABLES +========= +In all cases, you need to provide two variables. + +"LWIP_DIR" pointing to the lwIP directory +Example: +set(LWIP_DIR ${CMAKE_CURRENT_SOURCE_DIR}/externals/lwip) + +"LWIP_INCLUDE_DIRS" that contains the include base paths +- for lwIP itself (${LWIP_DIR}/src/include) +- for lwIP contrib if you use it (${LWIP_DIR}/contrib) +- to a directory containing an OS port +- to a directory containing lwipopts.h + +Example: +set (LWIP_INCLUDE_DIRS + "${LWIP_DIR}/src/include" + "${LWIP_DIR}/contrib" + "${LWIP_DIR}/contrib/ports/unix/port/include" + "${LWIP_DIR}/contrib/examples/example_app" +) + +Putting it all together +======================= +To get a working application, your CMake system +needs to provide the variables described above, e.g. +set (LWIP_DIR ) +set (LWIP_INCLUDE_DIRS + "${LWIP_DIR}/src/include" + "${LWIP_DIR}/contrib" + "/include" + "" +) + +You may add some defines: +set (LWIP_DEFINITIONS LWIP_DEBUG=1) + +Then include the filelists you need: +include(${LWIP_DIR}/src/Filelists.cmake) +include(${LWIP_DIR}/contrib/Filelists.cmake) + +Then, declare you executable: +add_executable(my_app ) + +Add lwIP include dirs to your app: +target_include_directories(my_app PRIVATE ${LWIP_INCLUDE_DIRS}) + +Link your app against the lwIP libs from the filelists you need: +target_link_libraries(my_app lwipcontribapps lwipallapps lwipcore) + +Working example +=============== +Working build examples can be found in the +contrib/ports/{win32, unix}/example_app +subdirectory. +To use them, create a build directory and call cmake with +the lwIP root dir: + +- mkdir build +- cd build +- cmake .. +- cmake --build . + +The CMakeLists.txt will autoselect the correct port +for your system (supported: Linux, Windows, Darwin). + +Makefile based build system +=========================== +lwIP also maintains file lists for Makefile-based +build systems. Look for Filelists.mk files +in the source tree. We try to maintain them, +but lwIP's mainly focused build system is CMake. diff --git a/middleware/lwip/CHANGELOG b/middleware/lwip/CHANGELOG new file mode 100644 index 0000000..df33490 --- /dev/null +++ b/middleware/lwip/CHANGELOG @@ -0,0 +1,4538 @@ +HISTORY + * These are only the most important changes. For a full list, use git log: + http://git.savannah.nongnu.org/cgit/lwip.git + +(git master) + + * [Enter new changes just after this line - do not remove this line] + + 2018-10-04: Jasper Verschueren + * Implement IPv4 ACD (Address Conflict Detection) + + 2018-10-02: Dirk Ziegelmeier + * Integrate contrib repository into main lwIP rep, tag STABLE-2_1_0_RELEASE + +(STABLE-2.1.1): + + ++ Bugfixes: + + 2018-11-01: Joan Lledó + * sockets.c: fix bad assertion in lwip_poll_dec_sockets_used() (bug #54933) + + 2018-11-01: Dirk Ziegelmeier + * ip4.c: don't send 127.* to default netif (bug #54670) + + 2018-10-23: David Girault + * altcp_tls_mbedtls.c: fix use-after free (bug #54774) + + 2018-10-23: Ognjen Bjelica, Dirk Ziegelmeier + * snmp_scalar.c: Avoid NULL pointer dereference (bug #54886) + + 2018-10-23: Simon Goldschmidt + * Fix missing standard includes in multiple files + + 2018-10-17: Ivan Warren + * def.h: fix casting htonX and ntohX to u16_t (bug #54850) + + 2018-10-12: Simon Goldschmidt + * Revert "tcp_abandon: no need to buffer pcb->local_port" (fix that source port was 0 for RST + called when aborting a connection) + + 2018-10-11: Jonas Rabenstein + * tcp.c: tcp_recved: check for overflow and warn about too big values (patch #9699) + + 2018-10-06: Joan Lledó + * sockets.c: alloc_socket(): Check for LWIP_SOCKET_POLL when setting select- + related variables (patch #9696) + + 2018-10-04: Spencer + * tcp.c: Update prev pointer when skipping entries in tcp_slowtmr (patch #9694) + + 2018-09-27: Martine Lenders + * lowpan6.c: Fix IEEE 802.15.4 address setting (bug #54749) + +(STABLE-2.1.0): + + ++ New features: + + 2018-06-17: Simon Goldschmidt + * lwiperf: implemented iPerf client mode + + 2018-04-23: Dirk Ziegelmeier + * added cmake build files + + 2018-03-04: Ray Abram + * netbios responder: respond to '*' queries + + 2018-02-23: Benjamin Aigner + * 6lowpan: add 6lowpan-over-BLE netif (based on existing 6lowpan netif) + + 2018-02-22: Simon Goldschmidt + * ipv6: add support for stateless DHCPv6 (to get DNS servers in SLAAC nets) + + 2018-02-16: Simon Goldschmidt + * add raw API http(s) client (with proxy support) + + 2018-02-01: Simon Goldschmidt + * tcp: add hooks to implement additional socket options + + 2018-02-01: Simon Goldschmidt + * tcp: add hooks to implement tcp md5 signatures or similar (see contrib/addons for an example) + + 2018-01-05: Simon Goldschmidt + * Added sys_mbox_trypost_fromisr() and tcpip_callbackmsg_trycallback_fromisr() + These can be used to post preallocated messages from an ISR to the tcpip thread + (e.g. when using FreeRTOS) + + 2018-01-02: Dirk Ziegelmeier + * task #14780: Add debug helper asserts to ensure threading/locking requirements are met + + 2017-11-21: Simon Goldschmidt + * task #14600: tcp_alloc(): kill TF_CLOSEPEND connections before other ESTABLISHED + + 2017-11-21: Simon Goldschmidt + * makefsdata: added option "-ssi:" to control SSI tag checking/insertion + through a list of filenames, not by checking the file extension at runtime + + 2017-11-20: Joel Cunningham + * netconn: add LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE to use external DNS resolver (patch #9427) + + 2017-11-14: Joel Cunningham + * netifapi: Add thread safe ARP cache APIs (task #14724) + + 2017-11-06: Axel Lin + * TCP: kill existing connections with a LOWER priority than the one currently being opened. + Previous implementations also kill existing connections of the SAME priority. + + 2017-09-21: Kalle Olavi Niemitalo + * sockets: add poll() implementation (patch #9450) + + 2017-09-10: Joel Cunningham + * sockets: add readv() implementation (task #14610) + + 2017-08-04: Simon Goldschmidt + * Clean up DHCP a bit: no need keep msg_out and msg_in as members in struct + dhcp - they are used in a call stack only (p_out and options_out_len as well) + + 2017-08-04: Simon Goldschmidt + * pbuf: split pbuf_header(s16_t) into pbuf_add_header(size_t) and + pbuf_remove_header(size_t) + + 2017-07-20: Douglas + * sys: deprecate sys_arch_sem_wait and sys_arch_mbox_fetch returning the + time waited rather they are now defined to return != SYS_ARCH_TIMEOUT + on success. + + 2017-07-03: Jakub Schmidtke + * tcp: added support for sending TCP SACKs + + 2017-06-20: Joel Cunningham + * netconn/netdb: added core locking support to netconn_gethostbyname (task #14523) + + 2017-04-25: Simon Goldschmidt + * dhcp: added two hooks for adding and parsing user defined DHCP options + + 2017-04-25: Joel Cunningham + * sockets: added recvmsg for UDP (together with CMSG and IP_PKTINFO) (task #14247) + + 2017-04-20: Joel Cunningham + * tcp: added Appropriate Byte Counting support (task #14128) + + 2017-04-11: Simon Goldschmidt + * netconn/sockets: remove fatal error handling, fix asynchronous error handling, + ensure data before RST can be received + + 2017-03-30: Simon Goldschmidt + * added "application layered TCP" connection API (altcp) for seamless integration + of TLS or proxy connections + + 2017-03-09: Simon Goldschmidt + * sockets: add recvmsg for TCP + + 2017-03-02: Joel Cunningham + * netconn/sockets: vectorize netconn_write for TCP, treating a vectored I/O write + atomically in regards to TCP segmentation (patch #8882) + + 2017-03-02: Simon Goldschmidt + * netconn: added nonblocking accept/recv to netconn API (task #14396) + + 2017-02-28: Simon Goldschmidt + * Added LWIP_SINGLE_NETIF for small targets with only one netif + + 2017-02-10: David van Moolenbroek + * Implement UDP and RAW multicast support for IPv6 (core API, not netconn/sockets) + + 2017-02-04: David van Moolenbroek + * IPv6 scopes support + + 2017-01-20: Joel Cunningham + * sockets: add interface name/index APIs (task #14314) + + 2017-01-08: David van Moolenbroek + * Extensions to RAW API (patch #9208) + - Connected RAW PCBs + - Add raw_sendto_if_src() + - Support IP_HDRINCL socket option + + ++ Bugfixes: + + 2018-06-19: Simon Goldschmidt + * tcp: fix RTO timer not working if link is down + + 2018-06-15: Sylvain Rochet + * ppp: multiple smaller bugfixes + + 2018-05-17: Simon Goldschmidt + * etharp: arp table can now be bigger than 127 entries + + 2018-04-25: Jens Nielsen + * tftp server: correctly handle retransmissions + + 2018-04-18: Simon Goldschmidt + sockets: fix race conditions when closing full-duplex sockets + + 2018-03-09: Simon Goldschmidt + * 6lowpan: fix to work against contiki; added ZigBee encapsulation netif for tests + + 2018-02-04: Simon Goldschmidt + * sockets: fix inconsistencies on close (inconsistent error codes, double FIN) + + 2018-01-05: Dirk Ziegelmeier + * Fix bug #52748: the bug in timeouts.c by reimplementing timer logic to use + absolute instead of relative timeout values + + 2017-12-31: Dirk Ziegelmeier + * Fix bug #52704: DHCP and bad OFFER: Stop timeout only if offer is accepted + + 2017-11-08: Joel Cunningham + * netif: ensure link and admin states are up in issue reports (bug #52353) + + 2017-09-12: David Lockyer + * select: allocate select_cb from memp for LWIP_MPU_COMPATIBLE = 1 (bug #51990) + + 2017-09-11: Simon Goldschmidt + * tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data) + + 2017-08-11: Joel Cunningham + * lwip_itoa: fix converting the number 0 (previously converted to '\0') (bug #51729) + + 2017-08-08: Dirk Ziegelmeier + * ip4_route_src: parameter order is reversed: ip4_route_src(dest, src) -> ip4_route_src(src, dest) + to make parameter order consistent with other ip*_route*() functions + Same also applies to LWIP_HOOK_IP4_ROUTE_SRC() parameter order. + + 2017-08-04: Joel Cunningham + * tcp: re-work persist timer to fully close window (details in bug #50837) + + 2017-07-26: Simon Goldschmidt + * snmp_msg.c: fix bug #51578 (SNMP failed to decode some values on non 32bit platforms) + + 2017-07-20: Simon Goldschmidt + * compatibility headers: moved from 'src/include/posix' to 'src/include/compat/posix', + 'src/include/compat/stdc' etc. + + 2017-05-09: Joel Cunningham + * tcp: add zero-window probe timeout (bug #50837) + + 2017-04-11: Simon Goldschmidt + * sockets.c: task #14420 (Remove sys_sem_signal from inside SYS_ARCH_PROTECT + crit section) done for LWIP_TCPIP_CORE_LOCKING==1 + + 2017-02-24: Simon Goldschmidt + * sockets.c: fixed close race conditions in lwip_select (for LWIP_NETCONN_FULLDUPLEX) + + 2017-02-24: Simon Goldschmidt + * sockets.c: fixed that select ignored invalid/not open sockets in the fd_sets (bug #50392) + + 2017-01-11: David van Moolenbroek + * Lots of IPv6 related fixes and improvements + +(STABLE-2.0.3) + + ++ Bugfixes: + + 2017-09-11: Simon Goldschmidt + * tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data) + + 2017-08-02: Abroz Bizjak/Simon Goldschmidt + * multiple fixes in IPv4 reassembly (leading to corrupted datagrams received) + + 2017-03-30: Simon Goldschmidt + * dhcp.c: return ERR_VAL instead of asserting on offset-out-of-pbuf + + 2017-03-23: Dirk Ziegelmeier + * dhcp.h: fix bug #50618 (dhcp_remove_struct() macro does not work) + +(STABLE-2.0.2) + + ++ New features: + + 2017-02-10: Dirk Ziegelmeier + * Implement task #14367: Hooks need a better place to be defined: + We now have a #define for a header file name that is #included in every .c + file that provides hooks. + + 2017-02-10: Simon Goldschmidt + * tcp_close does not fail on memory error (instead, FIN is sent from tcp_tmr) + + ++ Bugfixes: + + 2017-03-08 + * tcp: do not keep sending SYNs when getting ACKs + + 2017-03-08: Joel Cunningham + * tcp: Initialize ssthresh to TCP_SND_BUF (bug #50476) + + 2017-03-01: Simon Goldschmidt + * httpd: LWIP_HTTPD_POST_MANUAL_WND: fixed double-free when httpd_post_data_recved + is called nested from httpd_post_receive_data() (bug #50424) + + 2017-02-28: David van Moolenbroek/Simon Goldschmidt + * tcp: fixed bug #50418: LWIP_EVENT_API: fix invalid calbacks for SYN_RCVD pcb + + 2017-02-17: Simon Goldschmidt + * dns: Improved DNS_LOCAL_HOSTLIST interface (bug #50325) + + 2017-02-16: Simon Goldschmidt + * LWIP_NETCONN_FULLDUPLEX: fixed shutdown during write (bug #50274) + + 2017-02-13: Simon Goldschmidt/Dirk Ziegelmeier + * For tiny targtes, LWIP_RAND is optional (fix compile time checks) + + 2017-02-10: Simon Goldschmidt + * tcp: Fixed bug #47485 (tcp_close() should not fail on memory error) by retrying + to send FIN from tcp_fasttmr + + 2017-02-09: Simon Goldschmidt + * sockets: Fixed bug #44032 (LWIP_NETCONN_FULLDUPLEX: select might work on + invalid/reused socket) by not allowing to reallocate a socket that has + "select_waiting != 0" + + 2017-02-09: Simon Goldschmidt + * httpd: Fixed bug #50059 (httpd LWIP_HTTPD_SUPPORT_11_KEEPALIVE vs. + LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED) + + 2017-02-08: Dirk Ziegelmeier + * Rename "IPv6 mapped IPv4 addresses" to their correct name from RFC4191: + "IPv4-mapped IPv6 address" + + 2017-02-08: Luc Revardel + * mld6.c: Fix bug #50220 (mld6_leavegroup does not send ICMP6_TYPE_MLD, even + if last reporter) + + 2017-02-08: David van Moolenbroek + * ip6.c: Patch #9250: fix source substitution in ip6_output_if() + + 2017-02-08: Simon Goldschmidt + * tcp_out.c: Fixed bug #50090 (last_unsent->oversize_left can become wrong value + in tcp_write error path) + + 2017-02-02: Dirk Ziegelmeier + * Fix bug #50206: UDP Netconn bind to IP6_ADDR_ANY fails + + 2017-01-18: Dirk Ziegelmeier + * Fix zero-copy RX, see bug bug #50064. PBUF_REFs were not supported as ARP requests. + + 2017-01-15: Axel Lin, Dirk Ziegelmeier + * minor bug fixes in mqtt + + 2017-01-11: Knut Andre Tidemann + * sockets/netconn: fix broken default ICMPv6 handling of checksums + +(STABLE-2.0.1) + + ++ New features: + + 2016-12-31: Simon Goldschmidt + * tcp.h/.c: added function tcp_listen_with_backlog_and_err() to get the error + reason when listening fails (bug #49861) + + 2016-12-20: Erik Andersen + * Add MQTT client + + 2016-12-14: Jan Breuer: + * opt.h, ndc.h/.c: add support for RDNSS option (as per RFC 6106) + + 2016-12-14: David van Moolenbroek + * opt.h, nd6.c: Added LWIP_HOOK_ND6_GET_GW() + + 2016-12-09: Dirk Ziegelmeier + * ip6_frag.c: Implemented support for LWIP_NETIF_TX_SINGLE_PBUF + + 2016-12-09: Simon Goldschmidt + * dns.c: added one-shot multicast DNS queries + + 2016-11-24: Ambroz Bizjak, David van Moolenbroek + * tcp_out.c: Optimize passing contiguous nocopy buffers to tcp_write (bug #46290) + + 2016-11-16: Dirk Ziegelmeier + * sockets.c: added support for IPv6 mapped IPv4 addresses + + ++ Bugfixes: + + 2016-12-16: Thomas Mueller + * api_lib.c: fixed race condition in return value of netconn_gethostbyname() + (and thus also lwip_gethostbyname/_r() and lwip_getaddrinfo()) + + 2016-12-15: David van Moolenbroek + * opt.h, tcp: added LWIP_HOOK_TCP_ISN() to implement less predictable initial + sequence numbers (see contrib/addons/tcp_isn for an example implementation) + + 2016-12-05: Dirk Ziegelmeier + * fixed compiling with IPv4 disabled (IPv6 only case) + + 2016-11-28: Simon Goldschmidt + * api_lib.c: fixed bug #49725 (send-timeout: netconn_write() can return + ERR_OK without all bytes being written) + + 2016-11-28: Ambroz Bizjak + * tcpi_in.c: fixed bug #49717 (window size in received SYN and SYN-ACK + assumed scaled) + + 2016-11-25: Simon Goldschmidt + * dhcp.c: fixed bug #49676 (Possible endless loop when parsing dhcp options) + + 2016-11-23: Dirk Ziegelmeier + * udp.c: fixed bug #49662: multicast traffic is now only received on a UDP PCB + (and therefore on a UDP socket/netconn) when the PCB is bound to IP_ADDR_ANY + + 2016-11-16: Dirk Ziegelmeier + * *: Fixed dual-stack behaviour, IPv6 mapped IPv4 support in socket API + + 2016-11-14: Joel Cunningham + * tcp_out.c: fixed bug #49533 (start persist timer when unsent seg can't fit + in window) + + 2016-11-16: Roberto Barbieri Carrera + * autoip.c: fixed bug #49610 (sometimes AutoIP fails to reuse the same address) + + 2016-11-11: Dirk Ziegelmeier + * sockets.c: fixed bug #49578 (dropping multicast membership does not work + with LWIP_SOCKET_OFFSET) + +(STABLE-2.0.0) + + ++ New features: + + 2016-07-27: Simon Goldschmidt + * opt.h, timeouts.h/.c: added LWIP_TIMERS_CUSTOM to override the default + implementation of timeouts + + 2016-07-xx: Dirk Ziegelmeier + * Large overhaul of doxygen documentation + + 2016-04-05: Simon Goldschmidt + * timers.h/.c: prepare for overriding current timeout implementation: all + stack-internal caclic timers are avaliable in the lwip_cyclic_timers array + + 2016-03-23: Simon Goldschmidt + * tcp: call accept-callback with ERR_MEM when allocating a pcb fails on + passive open to inform the application about this error + ATTENTION: applications have to handle NULL pcb in accept callback! + + 2016-02-22: Ivan Delamer + * Initial 6LoWPAN support + + 2016-02-XX to 2016-03-XX: Dirk Ziegelmeier + * Cleanup TCPIP thread sync methods in a way that it is possibe to use them + in arbitrary code that needs things to be done in TCPIP thread. Used to + decouple netconn, netif, ppp and 6LoWPAN from LWIP core. + + 2016-02-XX: Dirk Ziegelmeier + * Implement dual-stack support in RAW, UDP and TCP. Add new IP address + type IPADDR_ANY_TYPE for this. Netconn/Socket API: Dual-stack is + automatically supported when an IPv6 netconn/socket is created. + + 2015-12-26: Martin Hentschel and Dirk Ziegelmeier + * Rewrite SNMP agent. SNMPv2c + MIB compiler. + + 2015-11-12: Dirk Ziegelmeier + * Decouple SNMP stack from lwIP core and move stack to apps/ directory. + Breaking change: Users have to call snmp_init() now! + + 2015-11-12: Dirk Ziegelmeier + * Implement possibility to declare private memory pools. This is useful to + decouple some apps from the core (SNMP stack) or make contrib app usage + simpler (httpserver_raw) + + 2015-10-09: Simon Goldschmidt + * started to move "private" header files containing implementation details to + "lwip/priv/" include directory to seperate the API from the implementation. + + 2015-10-07: Simon Goldschmidt + * added sntp client as first "supported" application layer protocol implementation + added 'apps' folder + + 2015-09-30: Dirk Ziegelmeier + * snmp_structs.h, mib_structs.c, mib2.c: snmp: fixed ugly inheritance + implementation by aggregating the "base class" (struct mib_node) in all + derived node classes to get more type-safe code + + 2015-09-23: Simon Goldschmidt + * netif.h/.c, nd6.c: task #13729: Convert netif addresses (IPv4 & IPv6) to + ip_addr_t (so they can be used without conversion/temporary storage) + + 2015-09-08: Dirk Ziegelmeier + * snmp: Separate mib2 counter/table callbacks from snmp agent. This both cleans + up the code and should allow integration of a 3rd party agent/mib2. Simple + counters are kept in MIB2_STATS, tree/table change function prototypes moved to + snmp_mib2.h. + + 2015-09-03: Simon Goldschmidt + * opt.h, dns.h/.c: DNS/IPv6: added support for AAAA records + + 2015-09-01: Simon Goldschmidt + * task #12178: hardware checksum capabilities can be configured per netif + (use NETIF_SET_CHECKSUM_CTRL() in your netif's init function) + + 2015-08-30: Simon Goldschmidt + * PBUF_REF with "custom" pbufs is now supported for RX pbufs (see pcapif in + contrib for an example, LWIP_SUPPORT_CUSTOM_PBUF is required) + + 2015-08-30: Simon Goldschmidt + * support IPv4 source based routing: define LWIP_HOOK_IP4_ROUTE_SRC to point + to a routing function + + 2015-08-05: Simon Goldschmidt + * many files: allow multicast socket options IP_MULTICAST_TTL, IP_MULTICAST_IF + and IP_MULTICAST_LOOP to be used without IGMP + + 2015-04-24: Simon Goldschmidt + * dhcp.h/c, autoip.h/.c: added functions dhcp/autoip_supplied_address() to + check for the source of address assignment (replacement for NETIF_FLAG_DHCP) + + 2015-04-10: Simon Goldschmidt + * many files: task #13480: added LWIP_IPV4 define - IPv4 can be disabled, + leaving an IPv6-only stack + + 2015-04-09: Simon Goldschmidt + * nearly all files: task #12722 (improve IPv4/v6 address handling): renamed + ip_addr_t to ip4_addr_t, renamed ipX_addr_t to ip_addr_t and added IP + version; ip_addr_t is used for all generic IP addresses for the API, + ip(4/6)_addr_t are only used internally or when initializing netifs or when + calling version-related functions + + 2015-03-24: Simon Goldschmidt + * opt.h, ip4_addr.h, ip4.c, ip6.c: loopif is not required for loopback traffic + any more but passed through any netif (ENABLE_LOOPBACK has to be enabled) + + 2015-03-23: Simon Goldschmidt + * opt.h, etharp.c: with ETHARP_TABLE_MATCH_NETIF== 1, duplicate (Auto)-IP + addresses on multiple netifs should now be working correctly (if correctly + addressed by routing, that is) + + 2015-03-23: Simon Goldschmidt + * etharp.c: Stable etharp entries that are about to expire are now refreshed + using unicast to prevent unnecessary broadcast. Only if no answer is received + after 15 seconds, broadcast is used. + + 2015-03-06: Philip Gladstone + * netif.h/.c: patch #8359 (Provide utility function to add an IPv6 address to + an interface) + + 2015-03-05: Simon Goldschmidt + * netif.c, ip4.c, dhcp.c, autoip.c: fixed bug #37068 (netif up/down handling + is unclear): correclty separated administrative status of a netif (up/down) + from 'valid address' status + ATTENTION: netif_set_up() now always has to be called, even when dhcp/autoip + is used! + + 2015-02-26: patch by TabascoEye + * netif.c, udp.h/.c: fixed bug #40753 (re-bind UDP pcbs on change of IP address) + + 2015-02-22: chrysn, Simon Goldschmidt + * *.*: Changed nearly all functions taking 'ip(X)_addr_t' pointer to take + const pointers (changed user callbacks: raw_recv_fn, udp_recv_fn; changed + port callbacks: netif_output_fn, netif_igmp_mac_filter_fn) + + 2015-02-19: Ivan Delamer + * netif.h, dhcp.c: Removed unused netif flag for DHCP. The preferred way to evaluate + if DHCP is active is through netif->dhcp field. + + 2015-02-19: Ivan Delamer + * netif.h, slipif.c, ppp.c: Removed unused netif flag for point to point connections + + 2015-02-18: Simon Goldschmidt + * api_lib.c: fixed bug #37958 "netconn API doesn't handle correctly + connections half-closed by peer" + + 2015-02-18: Simon Goldschmidt + * tcp.c: tcp_alloc() prefers killing CLOSING/LAST_ACK over active connections + (see bug #39565) + + 2015-02-16: Claudius Zingerli, Sergio Caprile + * opt.h, dhcp.h/.c: patch #8361 "Add support for NTP option in DHCP" + + 2015-02-14: Simon Goldschmidt + * opt.h, snmp*: added support for write-access community and dedicated + community for sending traps + + 2015-02-13: Simon Goldschmidt + * opt.h, memp.c: added hook LWIP_HOOK_MEMP_AVAILABLE() to get informed when + a memp pool was empty and an item is now available + + 2015-02-13: Simon Goldschmidt + * opt.h, pbuf.h/.c, etharp.c: Added the option PBUF_LINK_ENCAPSULATION_HLEN to + allocate additional header space for TX on netifs requiring additional headers + + 2015-02-12: chrysn + * timers.h/.c: introduce sys_timeouts_sleeptime (returns the time left before + the next timeout is due, for NO_SYS==1) + + 2015-02-11: Nick van Ijzendoorn + * opt.h, sockets.h/c: patch #7702 "Include ability to increase the socket number + with defined offset" + + 2015-02-11: Frederick Baksik + * opt.h, def.h, others: patch #8423 "arch/perf.h" should be made an optional item + + 2015-02-11: Simon Goldschmidt + * api_msg.c, opt.h: started to implement fullduplex sockets/netconns + (note that this is highly unstable yet!) + + 2015-01-17: Simon Goldschmidt + * api: allow enabling socket API without (public) netconn API - netconn API is + still used by sockets, but keeping it private (static) should allow better + compiler optimizations + + 2015-01-16: Simon Goldschmidt + * tcp_in.c: fixed bug #20506 "Initial congestion window is very small" again + by implementing the calculation formula from RFC3390 + + 2014-12-10: Simon Goldschmidt + * api: added option LWIP_NETCONN_SEM_PER_THREAD to use a semaphore per thread + instead of using one per netconn and per select call + + 2014-12-08: Simon Goldschmidt + * ip6.h: fixed bug #43778: IPv6 header version not set on 16-bit platform + (macro IP6H_VTCFL_SET()) + + 2014-12-08: Simon Goldschmidt + * icmp.c, ip4.c, pbuf.c, udp.c, pbuf.h: task #11472 Support PBUF_REF for RX + (IPv6 and IPv4/v6 reassembly might not work yet) + + 2014-11-06: Simon Goldschmidt + * sockets.c/.h, init.c: lwip_socket_init() is not needed any more + -> compatibility define + + 2014-09-16: Simon Goldschmidt + * dns.c, opt.h: reduced ram usage by parsing DNS responses in place + + 2014-09-16: Simon Goldschmidt + * pbuf.h/.c: added pbuf_take_at() and pbuf_put_at() + + 2014-09-15: Simon Goldschmidt + * dns.c: added source port randomization to make the DNS client more robust + (see bug #43144) + + 2013-09-02: Simon Goldschmidt + * arch.h and many other files: added optional macros PACK_STRUCT_FLD_8() and + PACK_STRUCT_FLD_S() to prevent gcc 4 from warning about struct members that + do not need packing + + 2013-08-19: Simon Goldschmidt + * netif.h: bug #42998: made NETIF_MAX_HWADDR_LEN overridable for some special + networks + + 2013-03-17: Simon Goldschmidt (patch by Ghobad Emadi) + * opt.h, etharp.c: Added LWIP_HOOK_ETHARP_GET_GW to implement IPv4 routing with + multiple gateways + + 2013-04-20: Fatih Asici + * opt.h, etharp.h/.c: patch #7993: Added support for transmitting packets + with VLAN headers via hook function LWIP_HOOK_VLAN_SET and to check them + via hook function LWIP_HOOK_VLAN_CHECK + + 2014-02-20: Simon Goldschmidt (based on patch by Artem Pisarenko) + * patch #7885: modification of api modules to support FreeRTOS-MPU + (don't pass stack-pointers to other threads) + + 2014-02-05: Simon Goldschmidt (patch by "xtian" and "alex_ab") + * patch #6537/#7858: TCP window scaling support + + 2014-01-17: Jiri Engelthaler + * icmp, icmp6, opt.h: patch #8027: Completed HW checksuming for IPv4 and + IPv6 ICMP's + + 2012-08-22: Sylvain Rochet + * New PPP stack for lwIP, developed in ppp-new branch. + Based from pppd 2.4.5, released 2009-11-17, with huge changes to match + code size and memory requirements for embedded devices, including: + - Gluing together the previous low-level PPP code in lwIP to pppd 2.4.5, which + is more or less what pppd sys-* files are, so that we get something working + using the unix port. + - Merged some patchs from lwIP Git repository which add interesting features + or fix bugs. + - Merged some patchs from Debian pppd package which add interesting features + or fix bugs. + - Ported PPP timeout handling to the lwIP timers system + - Disabled all the PPP code using filesystem access, replaced in necessary cases + to configuration variables. + - Disabled all the PPP code forking processes. + - Removed IPX support, lwIP does not support IPX. + - Ported and improved random module from the previous PPP port. + - Removed samba TDB (file-driven database) usage, because it needs a filesystem. + - MS-CHAP required a DES implementation, we added the latest PolarSSL DES + implementation which is under a BSD-ish license. + - Also switched to PolarSSL MD4,MD5,SHA1 implementations, which are meant to be + used in embedded devices with reduced memory footprint. + - Removed PPP configuration file parsing support. + - Added macro definition EAP_SUPPORT to make EAP support optional. + - Added macro definition CHAP_SUPPORT to make CHAP support optional. + - Added macro definition MSCHAP_SUPPORT to make MSCHAP support optional. + - Added macro definition PAP_SUPPORT to make PAP support optional. + - Cleared all Linux syscall calls. + - Disabled demand support using a macro, so that it can be ported later. + - Disabled ECP support using a macro, so that it can be ported later. + - Disabled CCP support using a macro, so that it can be ported later. + - Disabled CBCP support using a macro, so that it can be ported later. + - Disabled LQR support using a macro, so that it can be ported later. + - Print packet debug feature optional, through PRINTPKT_SUPPORT + - Removed POSIX signal usage. + - Fully ported PPPoS code from the previous port. + - Fully ported PPPoE code from the previous port. + - Fully ported VJ compression protocol code from the previous port. + - Removed all malloc()/free() use from PPP, replaced by stack usage or PBUF. + - Disabled PPP server support using a macro, so that it can be ported later. + - Switched all PPP debug to lwIP debug system. + - Created PPP Control Block (PPP PCB), removed PPP unit integer everywhere, + removed all global variables everywhere, did everything necessary for + the PPP stack to support more than one PPP session (pppd only support + one session per process). + - Removed the statically allocated output buffer, now using PBUF. + - Improved structure size of all PPP modules, deep analyze of code to reduce + variables size to the bare minimum. Switched all boolean type (char type in + most architecture) to compiler generated bitfields. + - Added PPP IPv6 support, glued lwIP IPv6 support to PPP. + - Now using a persistent netif interface which can then be used in lwIP + functions requiring a netif. + - Now initializing PPP in lwip_init() function. + - Reworked completely the PPP state machine, so that we don't end up in + anymore in inconsistent state, especially with PPPoE. + - Improved the way we handle PPP reconnection after disconnect, cleaning + everything required so that we start the PPP connection again from a + clean state. + - Added PPP holdoff support, allow the lwIP user to wait a little bit before + reconnecting, prevents connection flood, especially when using PPPoL2TP. + - Added PPPoL2TP LAC support (a.k.a. UDP tunnels), adding a VPN client + feature to lwIP, L2TP being a widely used tunnel protocol. + - Switched all used PPP types to lwIP types (u8t, u16t, u32t, ...) + - Added PPP API "sequential" thread-safe API, based from NETIFAPI. + + 2011-07-21: Simon Goldschmidt + * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes + ioctl/FIONREAD return the size of the next pending datagram. + + 2011-05-25: Simon Goldschmidt + * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c, + combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4 + and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP + code so that the code is more readable. + + 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt) + * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to + Ivan! (this is work in progress: we're just post release anyway :-) + + + ++ Bugfixes: + + 2016-08-23: Simon Goldschmidt + * etharp: removed ETHARP_TRUST_IP_MAC since it is insecure and we don't need + it any more after implementing unicast ARP renewal towards arp entry timeout + + 2016-07-20: Simon Goldschmidt + * memp.h/.c: fixed bug #48442 (memp stats don't work for MEMP_MEM_MALLOC) + + 2016-07-21: Simon Goldschmidt (patch by Ambroz Bizjak) + * tcp_in.c, tcp_out.c: fixed bug #48543 (TCP sent callback may prematurely + report sent data when only part of a segment is acked) and don't include + SYN/FIN in snd_buf counter + + 2016-07-19: Simon Goldschmidt + * etharp.c: fixed bug #48477 (ARP input packet might update static entry) + + 2016-07-11: Simon Goldschmidt + * tcp_in.c: fixed bug #48476 (TCP sent callback called wrongly due to picking + up old pcb->acked + + 2016-06-30: Simon Goldschmidt (original patch by Fabian Koch) + * tcp_in.c: fixed bug #48170 (Vulnerable to TCP RST spoofing) + + 2016-05-20: Dirk Ziegelmeier + * sntp.h/.c: Fix return value of sntp_getserver() call to return a pointer + + 2016-04-05: Simon Goldschmidt (patch by Philip Gladstone) + * udp.c: patch #8358: allow more combinations of listening PCB for IPv6 + + 2016-04-05: Simon Goldschmidt + * netconn/socket API: fixed bug# 43739 (Accept not reporting errors about + aborted connections): netconn_accept() returns ERR_ABRT (sockets: ECONNABORTED) + for aborted connections, ERR_CLSD (sockets: EINVAL) if the listening netconn + is closed, which better seems to follow the standard. + + 2016-03-23: Florent Matignon + * dhcp.c: fixed bug #38203: DHCP options are not recorded in all DHCP ack messages + + 2016-03-22: Simon Goldschmidt + * tcp: changed accept handling to be done internally: the application does not + have to call tcp_accepted() any more. Instead, when delaying accept (e.g. sockets + do), call tcp_backlog_delayed()/tcp_backlog_accepted() (fixes bug #46696) + + 2016-03-22: Simon Goldschmidt + * dns.c: ignore dns response parsing errors, only abort resolving for correct + responses or error responses from correct server (bug #47459) + + 2016-03-17: Simon Goldschmidt + * api_msg.c: fixed bug #47448 (netconn/socket leak if RST is received during close) + + 2016-03-17: Joel Cunningham + * api_msg.c: don't fail closing a socket/netconn when failing to allocate the + FIN segment; blocking the calling thread for a while is better than risking + leaking a netconn/socket (see bug #46701) + + 2016-03-16: Joel Cunningham + * tcp_out.c: reset rto timer on fast retransmission + + 2016-03-16: Deomid Ryabkov + * tcp_out.c: fixed bug #46384 Segment size calculation bug with MSS != TCP_MSS + + 2016-03-05: Simon Goldschmidt + * err.h/.c, sockets.c: ERR_IF is not necessarily a fatal error + + 2015-11-19: fix by Kerem Hadimli + * sockets.c: fixed bug #46471: lwip_accept() leaks socket descriptors if new + netconn was already closed because of peer behavior + + 2015-11-12: fix by Valery Ushakov + * tcp_in.c: fixed bug #46365 tcp_accept_null() should call tcp_abort() + + 2015-10-02: Dirk Ziegelmeier/Simon Goldschmidt + * snmp: cleaned up snmp structs API (fixed race conditions from bug #46089, + reduce ram/rom usage of tables): incompatible change for private MIBs + + 2015-09-30: Simon Goldschmidt + * ip4_addr.c: fixed bug #46072: ip4addr_aton() does not check the number range + of all address parts + + 2015-08-28: Simon Goldschmidt + * tcp.c, tcp_in.c: fixed bug #44023: TCP ssthresh value is unclear: ssthresh + is set to the full send window for active open, too, and is updated once + after SYN to ensure the correct send window is used + + 2015-08-28: Simon Goldschmidt + * tcp: fixed bug #45559: Window scaling casts u32_t to u16_t without checks + + 2015-08-26: Simon Goldschmidt + * ip6_frag.h/.c: fixed bug bug #41009: IPv6 reassembly broken on 64-bit platforms: + define IPV6_FRAG_COPYHEADER==1 on these platforms to copy the IPv6 header + instead of referencing it, which gives more room for struct ip6_reass_helper + + 2015-08-25: Simon Goldschmidt + * sockets.c: fixed bug #45827: recvfrom: TCP window is updated with MSG_PEEK + + 2015-08-20: Manoj Kumar + * snmp_msg.h, msg_in.c: fixed bug #43790: Sending octet string of Length >255 + from SNMP agent + + 2015-08-19: Jens Nielsen + * icmp.c, ip4.c, tcp_in.c, udp.c, raw.c: fixed bug #45120: Broadcast & multiple + interfaces handling + + 2015-08-19: Simon Goldschmidt (patch by "Sandra") + * dns.c: fixed bug #45004: dns response without answer might be discarded + + 2015-08-18: Chrysn + * timers.c: patch #8704 fix sys_timeouts_sleeptime function + + 2015-07-01: Erik Ekman + * puf.c: fixed bug #45454 (pbuf_take_at() skips write and returns OK if offset + is at start of pbuf in chain) + + 2015-05-19: Simon Goldschmidt + * dhcp.h/.c: fixed bugs #45140 and #45141 (dhcp was not stopped correctly after + fixing bug #38204) + + 2015-03-21: Simon Goldschmidt (patch by Homyak) + * tcp_in.c: fixed bug #44766 (LWIP_WND_SCALE: tcphdr->wnd was not scaled in + two places) + + 2015-03-21: Simon Goldschmidt + * tcp_impl.h, tcp.c, tcp_in.c: fixed bug #41318 (Bad memory ref in tcp_input() + after tcp_close()) + + 2015-03-21: Simon Goldschmidt + * tcp_in.c: fixed bug #38468 (tcp_sent() not called on half-open connection for + data ACKed with the same ack as FIN) + + 2015-03-21: Simon Goldschmidt (patch by Christoffer Lind) + * dhcp.h/.c: fixed bug #38204 (DHCP lease time not handled correctly) + + 2015-03-20: Simon Goldschmidt + * dhcp.c: fixed bug #38714 (Missing option and client address in DHCPRELEASE message) + + 2015-03-19: Simon Goldschmidt + * api.h, tcpip.h, api_lib.c, api_msg.c: fixed race conditions in assigning + netconn->last_err (fixed bugs #38121 and #37676) + + 2015-03-09: Simon Goldschmidt + * ip4.c: fixed the IPv4 part of bug #43904 (ip_route() must detect linkup status) + + 2015-03-04: Simon Goldschmidt + * nd6.c: fixed bug #43784 (a host should send at least one Router Solicitation) + + 2015-03-04: Valery Ushakov + * ip6.c: fixed bug #41094 (Byte-order bug in IPv6 fragmentation header test) + + 2015-03-04: Zach Smith + * nd6.c: fixed bug #38153 (nd6_input() byte order issues) + + 2015-02-26: Simon Goldschmidt + * netif.c, tcp.h/.c: fixed bug #44378 (TCP connections are not aborted on netif + remove) + + 2015-02-25: Simon Goldschmidt + * ip4.c, etharp.c: fixed bug #40177 (System hangs when dealing with corrupted + packets), implemented task #12357 (Ensure that malicious packets don't + assert-fail): improved some pbuf_header calls to not assert-fail. + + 2015-02-25: patch by Joel Cunningham + * udp.h/.c, sockets.c: fixed bug #43028 (IP_MULTICAST_TTL affects unicast + datagrams) + + 2015-02-25: patch by Greg Renda + * ip4_frag.c: fixed bug #38210 (ip reassembly while remove oldest datagram) + + 2015-02-25: Simon Goldschmidt + * sockets.c: fixed bug #38165 (socket with mulicast): ensure igmp membership + are dropped when socket (not netconn!) is closed. + + 2015-02-25: Simon Goldschmidt + * ip4.h/.c, udp.c: fixed bug #38061 (wrong multicast routing in IPv4) by + adding an optional default netif for multicast routing + + 2015-02-25: Simon Goldschmidt + * netconn API: fixed that netconn_connect still used message passing for + LWIP_TCPIP_CORE_LOCKING==1 + + 2015-02-22: patch by Jens Nielsen + * icmp.c: fixed bug #38803 (Source address in broadcast ping reply) + + 2015-02-22: Simon Goldschmidt + * udp.h, sockets.c: added proper accessor functions for pcb->multicast_ip + (previously used by get/setsockopt only) + + 2015-02-18: Simon Goldschmidt + * sockets.c: Fixed select not reporting received FIN as 'readable' in certain + rare cases (bug #43779: select(), close(), and TCP retransmission error) + + 2015-02-17: Simon Goldschmidt + * err.h, sockets.c, api_msg.c: fixed bug #38853 "connect() use a wrong errno": + return ERR_ALREADY/EALRADY during connect, ERR_ISCONN/EISCONN when already + connected + + 2015-02-17: Simon Goldschmidt + * tcp_impl.h, tcp_out.c, tcp.c, api_msg.c: fixed bug #37614 "Errors from + ipX_output are not processed". Now tcp_output(_segment) checks for the return + value of ipX_output and does not try to send more on error. A netif driver + can call tcp_txnow() (from tcpip_thread!) to try to send again if TX buffers + are available again. + + 2015-02-14: patches by Freddie Chopin + * snmp*: made community writable, fixed some const pointers + + 2015-02-13: Simon Goldschmidt + * msg_in.c: fixed bug #22070 "MIB_OBJECT_WRITE_ONLY not implemented in SNMP" + + 2015-02-12: Simon Goldschmidt + * ip.h, ip4.c, ip6.c: fixed bug #36403 "ip4_input() and ip6_input() always pass + inp to higher layers": now the accepting netif is passed up, but the input + netif is available through ip_current_input_netif() if required. + + 2015-02-11: patch by hichard + * tcpip.c: fixed bug #43094 "The function tcpip_input() forget to handle IPv6" + + 2015-02-10: Simon Goldschmidt + * netconn API: fixed that netconn_close/netconn_delete still used message passing + for LWIP_TCPIP_CORE_LOCKING==1 + + 2015-02-10: Simon Goldschmidt + * netconn/socket api: fixed bug #44225 "closing TCP socket should time out + eventually", implemented task #6930 "Implement SO_LINGER": closing TCP sockets + times out after 20 seconds or after the configured SND_TIMEOUT or depending + on the linger settings. + + 2015-01-27: Simon Goldschmidt + * api_msg.c: fixed that SHUT_RD followed by SHUT_WR was different to SHUT_RDWR, + fixed return value of lwip_netconn_do_close on unconnected netconns + + 2015-01-17: Simon Goldschmidt + * sockets.c: fixed bug #43361 select() crashes with stale FDs + + 2015-01-17: Simon Goldschmidt + * sockets.c/.h, memp_std.h: fixed bug #40788 "lwip_setsockopt_internal() crashes" + by rewriting set/getsockopt functions to combine checks with the actual code + and add more NULL checks; this also fixes that CORE_LOCKING used message + passing for set/getsockopt. + + 2014-12-19: Simon Goldschmidt + * opt.h, dhcp.h/.c: prevent dhcp from starting when netif link is down (only + when LWIP_DHCP_CHECK_LINK_UP==1, which is disabled by default for + compatibility reasons) + + 2014-12-17: Simon Goldschmidt + * tcp_out.c: fixed bug #43840 Checksum error for TCP_CHECKSUM_ON_COPY==1 for + no-copy data with odd length + + 2014-12-10: Simon Goldschmidt + * sockets.c, tcp.c, others: fixed bug #43797 set/getsockopt: SO_SNDTIMEO/SO_RCVTIMEO + take int as option but should take timeval (LWIP_SO_SNDRCVTIMEO_STANDARD==0 can + be used to revert to the old 'winsock' style behaviour) + Fixed implementation of SO_ACCEPTCONN to just look at the pcb state + + 2014-12-09: Simon Goldschmidt + * ip4.c: fixed bug #43596 IGMP queries from 0.0.0.0 are discarded + + 2014-10-21: Simon Goldschmidt (patch by Joel Cunningham and Albert Huitsing) + * sockts.c: fixed bugs #41495 Possible threading issue in select() and #43278 + event_callback() handle context switch when calling sys_sem_signal() + + 2014-10-21: Simon Goldschmidt + * api_msg.c: fixed bug #38219 Assert on TCP netconn_write with sndtimeout set + + 2014-09-16: Kevin Cernekee + * dns.c: patch #8480 Fix handling of dns_seqno wraparound + + 2014-09-16: Simon Goldschmidt + * tcp_out.c: fixed bug #43192 tcp_enqueue_flags() should not check TCP_SND_QUEUELEN + when sending FIN + + 2014-09-03: Simon Goldschmidt + * msg_in.c: fixed bug #39355 SNMP Memory Leak in case of error + + 2014-09-02: Simon Goldschmidt + * err.h/.c, sockets.c, api_msg.c: fixed bug #43110 call getpeername() before + listen() will cause a error + + 2014-09-02: Simon Goldschmidt + * sockets.c: fixed bug #42117 lwip_fcntl does not set errno + + 2014-09-02: Simon Goldschmidt + * tcp.c: fixed bug #42299 tcp_abort() leaves freed pcb on tcp_bound_pcbs list + + 2014-08-20: Simon Goldschmidt + * dns.c: fixed bug #42987 lwIP is vulnerable to DNS cache poisoning due to + non-randomized TXIDs + + 2014-06-03: Simon Goldschmidt + * tcp_impl.h, tcp_in.c: fixed bug #37969 SYN packet dropped as short packet in + tcp_input function + + 2014-05-20: Simon Goldschmidt + * tcp_out.c: fixed bug #37184 tcp_write problem for pcbs in the SYN_SENT state + + 2014-05-19: Simon Goldschmidt + * *.h: Fixed bug #35874 reserved identifier violation (removed leading underscores + from header include guards) + + 2014-04-08: Simon Goldschmidt + * tcp.c: Fixed bug #36167 tcp server crash when client closes (maximum window) + + 2014-04-06: Simon Goldschmidt + * tcp_in.c: Fixed bug #36210 lwIP does not elicit an empty ACK when received + unacceptable ACK + + 2014-04-06: Simon Goldschmidt + * dhcp.c, ip4.c/.h, ip6.c/.h, udp.c/.h, ip.h: Fixed bug #41787 DHCP Discovery + is invalid when an IP is set to thet netif. + + 2014-03-14: Simon Goldschmidt + * tcp_out.c: Fixed bug #36153 TCP Cheksum error if LWIP_CHECKSUM_ON_COPY=1 + + 2014-03-11: Simon Goldschmidt (patch by Mason) + * opt.h, sockets.c: fixed bug #35928 BSD sockets functions must set errno for + POSIX-compliance + + 2014-02-27: Simon Goldschmidt + * dhcp.c: fixed bug #40303 DHCP xid renewed when sending a DHCPREQUEST + + 2014-02-27: Simon Goldschmidt + * raw.c: fixed bug #41680 raw socket can not receive IPv6 packet when + IP_SOF_BROADCAST_RECV==1 + + 2014-02-27: Simon Goldschmidt + * api_msg.c, sockets.c: fixed bug #38404 getpeeraddr returns success on + unconnected/listening TCP sockets + + 2014-02-27: Simon Goldschmidt + * sockets.c: fixed bug #41729 Some socket functions return Exyz instead of -1 + + 2014-02-25: Simon Goldschmidt + * ip4.c: fixed bug #39514 ip_route() may return an IPv6-only interface + + 2014-02-25: Simon Goldschmidt, patch by Fatih Asici + * pbuf.c: fixed bug #39356 Wrong increment in pbuf_memfind() + + 2014-02-25: Simon Goldschmidt + * netif.c/.h, udp.c: fixed bug #39225 udp.c uses netif_matches_ip6_addr() incorrectly; + renamed function netif_matches_ip6_addr() to netif_get_ip6_addr_match() + + 2014-02-25: Simon Goldschmidt + * igmp.c: fixed bug #39145 IGMP membership report for 224.0.0.1 + + 2014-02-22: Simon Goldschmidt (patch by Amir Shalem) + * etharp.c, opt.h: fixed bug #34681 Limit ARP queue length by ARP_QUEUE_LEN (=3) + + 2014-02-22: Simon Goldschmidt (patch by Amir Shalem) + * etharp.h/.c: fixed bug #34682 Limit ARP request flood for unresolved entry + + 2014-02-20: Simon Goldschmidt + * tcp_out.c: fixed bug #39683 Assertion "seg->tcphdr not aligned" failed with + MEM_ALIGNMENT = 8 + + 2014-02-20: Simon Goldschmidt + * sockets.c: fixed bug #39882 No function shall set errno to 0 + + 2014-02-20: Simon Goldschmidt + * mib_structs.c: fixed bug #40050 SNMP problem with MIB arrays > 255 + + 2014-02-20: Simon Goldschmidt + * api.h, sockets.c: fixed bug #41499 netconn::recv_avail can overflow + + 2014-01-08: Stathis Voukelatos + * memp_std.h: patch #7928 Fixed size calculation in MALLOC memory pool + creation macro + + 2014-01-18: Brian Fahs + * tcp_out.c: patch #8237: tcp_rexmit_rto fails to update pcb->unsent_oversize + when necessary + + 2014-01-17: Grant Erickson, Jay Logue, Simon Goldschmidt + * ipv6.c, netif.c: patch #7913 Enable Support for IPv6 Loopback + + 2014-01-16: Stathis Voukelatos + * netif.c: patch #7902 Fixed netif_poll() operation when LWIP_LOOPBACK_MAX_PBUFS > 0 + + 2014-01-14: "Freddie Chopin" + * snmp.h, mib2.c: fixed constness and spelling of sysdescr + + 2014-01-14: Simon Goldschmidt (patch by Thomas Faber) + * tcpip.c: patch #8241: Fix implicit declaration of ip_input with + LWIP_TCPIP_CORE_LOCKING_INPUT disabled + + 2014-01-14: chrysn + * timers.c: patch #8244 make timeouts usable reliably from outside of the + timeout routine + + 2014-01-10: Simon Goldschmidt + * ip_frag.c, ip6_frag.c: fixed bug #41041 Potential use-after-free in IPv6 reassembly + + 2014-01-10: Simon Goldschmidt + * memp.c: fixed bug #41188 Alignment error in memp_init() when MEMP_SEPARATE_POOLS==1 + + 2014-01-10: Simon Goldschmidt + * tcp.c: fixed bug #39898 tcp_fasttmr() possible lock due to infinte queue process loop + + 2013-06-29: Simon Goldschmidt + * inet.h, sockets.h: partially fixed bug #37585: IPv6 compatibility (in socket structs) + + 2013-06-29: Simon Goldschmidt + * inet6.h: bug #37585/task #12600: fixed struct in6_addr.s6_addr to conform to spec + + 2013-04-24: patch by Liam + * api_msg.c: patch #8008 Fix a potential null pointer dereference in assert + + 2013-04-24: Simon Goldschmidt + * igmp.c: fixed possible division by zero + + 2013-04-24: Simon Goldschmidt + * ip6.h, some ipv6 C files: fixed bug #38526 Coverity: Recursive Header Inclusion in ip6.h + + 2013-04-24: Simon Goldschmidt (patch by Emil Ljungdahl): + * netif.c: fixed bug #38586 netif_loop_output() "deadlocks" + + 2013-01-15: Simon Goldschmidt + * ip4.c: fixed bug #37665 ip_canforward operates on address in wrong byte order + + 2013-01-15: Simon Goldschmidt + * pbuf.h: fixed bug #38097 pbuf_free_ooseq() warning + + 2013-01-14: Simon Goldschmidt + * dns.c: fixed bug #37705 Possible memory corruption in DNS query + + 2013-01-11: Simon Goldschmidt + * raw.c: fixed bug #38066 Raw pcbs can alter packet without eating it + + 2012-08-22: Simon Goldschmidt + * memp.c: fixed bug #37166: memp_sanity check loops itself + + 2012-08-13: Simon Goldschmidt + * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start + dereferences NULL + + 2012-08-13: Simon Goldschmidt + * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps + configured but no interfaces available + + 2012-08-13: Simon Goldschmidt + * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time + + 2012-05-11: Simon Goldschmidt (patch by Marty) + * memp.c: fixed bug #36412: memp.c does not compile when + MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1 + + 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet) + * ppp.c: fixed bug #36283 (PPP struct used on header size computation and + not packed) + + 2012-05-03: Simon Goldschmidt (patch by David Empson) + * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with + zero length) + + 2012-03-25: Simon Goldschmidt + * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed + for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1 + + 2012-03-25: Simon Goldschmidt + * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space + pollution in api_msg.c and netifapi.c + + 2011-08-24: Simon Goldschmidt + * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard + + + +(STABLE-1.4.1) + + ++ New features: + + 2012-03-25: Simon Goldschmidt (idea by Mason) + * posix/*: added posix-compatibility include files posix/netdb.h and posix/sys/socket.h + which are a simple wrapper to the correct lwIP include files. + + 2012-01-16: Simon Goldschmidt + * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP + + 2011-12-17: Simon Goldschmidt + * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW) + (fixes bug #35061) + + 2011-09-27: Simon Goldschmidt + * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989) + (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h) + + 2011-09-21: Simon Goldschmidt + * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on + send (TCP only, bug #33820) + + 2011-09-21: Simon Goldschmidt + * init.c: Converted runtime-sanity-checks into compile-time checks that can + be disabled (since runtime checks can often not be seen on embedded targets) + + 2011-09-11: Simon Goldschmidt + * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file + to get a clear separation of which functions an application or port may use + (task #11281) + + 2011-09-11: Simon Goldschmidt + * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize + initial local TCP/UDP ports (so that different port ranges are used after + a reboot; bug #33818; this one added tcp_init/udp_init functions again) + + 2011-09-03: Simon Goldschmidt + * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302) + + 2011-08-24: Simon Goldschmidt + * opt.h, netif.h/.c: added netif remove callback (bug #32397) + + 2011-07-26: Simon Goldschmidt + * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter + function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN) + + 2011-07-21: Simon Goldschmidt (patch by hanhui) + * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour: + Added pbuf flags to mark incoming packets as link-layer broadcast/multicast. + Also added code to allow ip_forward() to forward non-broadcast packets to + the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1). + + 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman) + * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that + pcb->state != LISTEN + + 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage) + * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static + memory message + + + ++ Bugfixes: + + 2012-09-26: Simon Goldschmidt + * api_msg.c: fixed bug #37405 'err_tcp()' uses already freed 'netconn' object + + 2012-09-26: patch by Henrik Persson + * dhcp.c: patch #7843 Fix corner case with dhcp timeouts + + 2012-09-26: patch by Henrik Persson + * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet + + 2012-08-22: Simon Goldschmidt + * memp.c: fixed bug #37166: memp_sanity check loops itself + + 2012-05-08: Simon Goldschmidt + * tcp_out.c: fixed bug: #36380 unsent_oversize mismatch in 1.4.1RC1 (this was + a debug-check issue only) + + 2012-03-27: Simon Goldschmidt + * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c + + 2012-03-27: Simon Goldschmidt (patch by Mason) + * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the + send MSS + + 2012-03-22: Simon Goldschmidt + * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward + + 2012-03-20: Simon Goldschmidt (patch by Mason) + * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list + + 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic) + * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian, + possible bug on little endian system + + 2012-02-23: Simon Goldschmidt + * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway + (introduced when fixing bug# 33551) + + 2012-02-16: Simon Goldschmidt + * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP() + (bug #35541: PPP Memory Leak) + + 2012-02-16: Simon Goldschmidt + * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway + (introduced when fixing bug# 33551) + + 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage) + * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed + + 2012-02-15: Simon Goldschmidt + * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with + MEMP_MEM_MALLOC==1 + + 2012-02-12: Simon Goldschmidt + * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on + MSS > pcb->snd_wnd (by not creating segments bigger than half the window) + + 2012-02-11: Simon Goldschmidt + * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait + queue while closing + + 2012-01-22: Simon Goldschmidt + * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR) + + 2012-01-21: Simon Goldschmidt + * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb + + 2012-01-20: Simon Goldschmidt + * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths + + 2012-01-20: Simon Goldschmidt + * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy + + 2011-11-25: Simon Goldschmidt + * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt + tcp_active_pcbs in some cases + + 2011-11-23: Simon Goldschmidt + * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with + '#ifndef sys_msleep' + + 2011-11-22: Simon Goldschmidt + * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when + netif is brought down + + 2011-10-28: Simon Goldschmidt + * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks + + 2011-10-23: Simon Goldschmidt + * mem.c: fixed bug #34429: possible memory corruption with + LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1 + + 2011-10-18: Simon Goldschmidt + * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard + error value + + 2011-10-18: Simon Goldschmidt + * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small + windows (bug #34176 select after non-blocking send times out) + + 2011-10-18: Simon Goldschmidt + * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't + consider netif->mtu, causes slow network + + 2011-10-18: Simon Goldschmidt + * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code + + 2011-10-18: Simon Goldschmidt + * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS + + 2011-10-17: Simon Goldschmidt + * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api + + 2011-10-13: Simon Goldschmidt + * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no + zero window is received) by starting the persist timer when a zero window is + received, not when we have more data queued for sending than fits into the + window + + 2011-10-13: Simon Goldschmidt + * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex + + 2011-10-13: Simon Goldschmidt + * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is + used and not all protocols are enabled + + 2011-10-12: Simon Goldschmidt + * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4 + + 2011-10-09: Simon Goldschmidt + * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect + byte value when pcb->unacked != NULL + + 2011-10-09: Simon Goldschmidt + * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong + + 2011-09-27: Simon Goldschmidt + * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places... + + 2011-09-27: Simon Goldschmidt + * tcp_in.c: fixed bug #28288: Data after FIN in oos queue + + 2011-09-27: Simon Goldschmidt + * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf + + 2011-09-24: Simon Goldschmidt + * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1 + + 2011-09-23: Simon Goldschmidt + * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for + the last packet including FIN can lose data + + 2011-09-22: Simon Goldschmidt + * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into + account + + 2011-09-21: Simon Goldschmidt + * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks + in init.c + + 2011-09-20: Simon Goldschmidt + * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts) + + 2011-09-11: Simon Goldschmidt + * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs + (bug #34019) + + 2011-09-09: Simon Goldschmidt + * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if + udp port matches + + 2011-09-03: Simon Goldschmidt + * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet + is aggregated and sent to application + + 2011-09-01: Simon Goldschmidt + * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared + to other options + + 2011-09-01: Simon Goldschmidt + * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno + + 2011-08-24: Simon Goldschmidt + * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling + accept() on UDP connections + + 2011-08-24: Simon Goldschmidt + * sockets.h: fixed bug #34057 socklen_t should be a typedef + + 2011-08-24: Simon Goldschmidt + * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo) + + 2011-08-24: Simon Goldschmidt + * dhcp.c: fixed bug #34122 dhcp: hostname can overflow + + 2011-08-24: Simon Goldschmidt + * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr + + 2011-08-22: Simon Goldschmidt + * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This + merely prevents nagle from not transmitting fast after closing.) + + 2011-07-22: Simon Goldschmidt + * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns + always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now + lwip_send() sends as much as possible for non-blocking sockets + + 2011-07-22: Simon Goldschmidt + * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented + for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ() + at regular intervals from main level. + + 2011-07-21: Simon Goldschmidt + * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by + sending an ARP request when an ARP entry is used in the last minute before + it would time out. + + 2011-07-04: Simon Goldschmidt + * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0. + + 2011-06-26: Simon Goldschmidt + * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by + updating its documentation only. + + 2011-06-26: Simon Goldschmidt + * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an + unaligned pointer. + + 2011-06-26: Simon Goldschmidt + * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1" + + 2011-05-25: Simon Goldschmidt + * tcp.c: fixed bug #33398 (pointless conversion when checking TCP port range) + + + +(STABLE-1.4.0) + + ++ New features: + + 2011-03-27: Simon Goldschmidt + * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and + calculate it in tcp_zero_window_probe (the only place where it was used). + + 2010-11-21: Simon Goldschmidt + * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif + (fixes bug #31525). + + 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage) + * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for + IP_MULTICAST_LOOP at socket- and raw-API level. + + 2010-06-16: Simon Goldschmidt + * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow + link-layer-addressed UDP traffic to be received while a netif is down (just + like DHCP during configuration) + + 2010-05-22: Simon Goldschmidt + * many many files: bug #27352: removed packing from ip_addr_t, the packed + version is now only used in protocol headers. Added global storage for + current src/dest IP address while in input functions. + + 2010-05-16: Simon Goldschmidt + * def.h: task #10391: Add preprocessor-macros for compile-time htonl + calculation (and use them throughout the stack where applicable) + + 2010-05-16: Simon Goldschmidt + * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool + instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h) + + 2010-05-16: Simon Goldschmidt + * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own + MEMP pool instead of the heap + + 2010-05-13: Simon Goldschmidt + * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added + new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast + packets to more than one pcb. + + 2010-05-02: Simon Goldschmidt + * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending + UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1 + + 2010-04-30: Simon Goldschmidt + * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that + take a precalculated checksum, added pbuf_fill_chksum() to copy data + into a pbuf and at the same time calculating the checksum for that data + + 2010-04-29: Simon Goldschmidt + * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying + 2-byte-aligned IP addresses and MAC addresses + + 2010-04-28: Patch by Bill Auerbach + * ip.c: Inline generating IP checksum to save a function call + + 2010-04-14: Simon Goldschmidt + * tcpip.h/.c, timers.c: Added an overridable define to get informed when the + tcpip_thread processes messages or timeouts to implement a watchdog. + + 2010-03-28: Simon Goldschmidt + * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing + fragment if LWIP_NETIF_TX_SINGLE_PBUF==1 + + 2010-03-27: Simon Goldschmidt + * etharp.c: Speedup TX by moving code from find_entry to etharp_output/ + etharp_query to prevent unnecessary function calls (inspired by + patch #7135). + + 2010-03-20: Simon Goldschmidt + * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code + since the linker cannot do this automatically to save space. + + 2010-03-20: Simon Goldschmidt + * opt.h, etharp.c/.h: Added support for static ARP table entries + + 2010-03-14: Simon Goldschmidt + * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum + when creating TCP segments, not when (re-)transmitting them. + + 2010-03-07: Simon Goldschmidt + * sockets.c: bug #28775 (select/event_callback: only check select_cb_list + on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code. + This should speed up receiving data on sockets as the select code in + event_callback is only executed when select is waiting. + + 2010-03-06: Simon Goldschmidt + * tcp_out.c: task #7013 (Create option to have all packets delivered to + netif->output in one piece): Always copy to try to create single pbufs + in tcp_write. + + 2010-03-06: Simon Goldschmidt + * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv + by not allocating a netbuf): added function netconn_recv_tcp_pbuf() + for tcp netconns to receive pbufs, not netbufs; use that function + for tcp sockets. + + 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt + * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040: + Work on tcp_enqueue: Don't waste memory when chaining segments, + added option TCP_OVERSIZE to prevent creating many small pbufs when + calling tcp_write with many small blocks of data. Instead, pbufs are + allocated larger than needed and the space is used for later calls to + tcp_write. + + 2010-02-21: Simon Goldschmidt + * stats.c/.h: Added const char* name to mem- and memp-stats for easier + debugging. + + 2010-02-21: Simon Goldschmidt + * tcp.h (and usages), added tcp_impl.h: Splitted API and internal + implementation of tcp to make API usage cleare to application programmers + + 2010-02-14: Simon Goldschmidt/Stephane Lesage + * ip_addr.h: Improved some defines working on ip addresses, added faster + macro to copy addresses that cannot be NULL + + 2010-02-13: Simon Goldschmidt + * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non- + blocking send operation) + + 2010-02-12: Simon Goldschmidt + * sockets.c/.h: Added a minimal version of posix fctl() to have a + standardised way to set O_NONBLOCK for nonblocking sockets. + + 2010-02-12: Simon Goldschmidt + * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated + memory): added autoip_set_struct() and dhcp_set_struct() to let autoip + and dhcp work with user-allocated structs instead of callin mem_malloc + + 2010-02-12: Simon Goldschmidt/Jeff Barber + * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has + SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT + + 2010-02-12: Simon Goldschmidt + * sys layer: task #10139 (Prefer statically allocated memory): converted + mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t; + converted sys_mbox_new/sys_sem_new to take pointers and return err_t; + task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX + to let sys.h use binary semaphores instead of mutexes - as before) + + 2010-02-09: Simon Goldschmidt (Simon Kallweit) + * timers.c/.h: Added function sys_restart_timeouts() from patch #7085 + (Restart system timeout handling) + + 2010-02-09: Simon Goldschmidt + * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into + netif.c) - loopif does not have to be created by the port any more, + just define LWIP_HAVE_LOOPIF to 1. + + 2010-02-08: Simon Goldschmidt + * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa + inet_ntoa_r/ipaddr_ntoa_r + + 2010-02-08: Simon Goldschmidt + * netif.h: Added netif_s/get_igmp_mac_filter() macros + + 2010-02-05: Simon Goldschmidt + * netif.h: Added function-like macros to get/set the hostname on a netif + + 2010-02-04: Simon Goldschmidt + * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to + make changing the actual implementation behind the typedef easier. + + 2010-02-01: Simon Goldschmidt + * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool + for allocating memory when getaddrinfo() is called. + + 2010-01-31: Simon Goldschmidt + * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse + them once instead of parsing for every option. This also removes + the need for mem_malloc from dhcp_recv and makes it possible to + correctly retrieve the BOOTP file. + + 2010-01-30: simon Goldschmidt + * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect + the sockets array. + + 2010-01-29: Simon Goldschmidt (patch by Laura Garrett) + * api.h, api_msg.c, sockets.c: Added except set support in select + (patch #6860) + + 2010-01-29: Simon Goldschmidt (patch by Laura Garrett) + * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c: + Add non-blocking support for connect (partly from patch #6860), + plus many cleanups in socket & netconn API. + + 2010-01-27: Simon Goldschmidt + * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding + to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605 + + 2010-01-26: Simon Goldschmidt + * snmp: Use memp pools for snmp instead of the heap; added 4 new pools. + + 2010-01-14: Simon Goldschmidt + * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback + by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback() + + 2010-01-13: Simon Goldschmidt + * mem.c: The heap now may be moved to user-defined memory by defining + LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address + (patch #6966 and bug #26133) + + 2010-01-10: Simon Goldschmidt (Bill Auerbach) + * opt.h, memp.c: patch #6822 (Add option to place memory pools in + separate arrays) + + 2010-01-10: Simon Goldschmidt + * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define + LWIP_RAND() for lwip-wide randomization (to be defined in cc.h) + + 2009-12-31: Simon Goldschmidt + * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h + added timers.c/.h: Separated timer implementation from semaphore/mbox + implementation, moved timer implementation to timers.c/.h, timers are + now only called from tcpip_thread or by explicitly checking them. + (TASK#7235) + + 2009-12-27: Simon Goldschmidt + * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option + LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE) + + + ++ Bugfixes: + + 2011-04-20: Simon Goldschmidt + * sys_arch.txt: sys_arch_timeouts() is not needed any more. + + 2011-04-13: Simon Goldschmidt + * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by + using ports in the IANA private/dynamic range (49152 through 65535). + + 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl: + * etharp.h/.c: Fixed broken VLAN support. + + 2011-03-27: Simon Goldschmidt + * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp + pcbs) by checking if the pcb was bound (local_port != 0). + + 2011-03-27: Simon Goldschmidt + * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice) + + 2011-03-27: Simon Goldschmidt + * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and + raw pcbs with LWIP_TCPIP_CORE_LOCKING==1. + + 2011-03-27: Simon Goldschmidt + * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route + is present never times out) by starting retransmission timer before checking + route. + + 2011-03-22: Simon Goldschmidt + * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only + calling sio_read_abort() if the file descriptor is valid. + + 2011-03-14: Simon Goldschmidt + * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect + more than once can render a socket useless) since it mainly involves changing + "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal. + + 2011-03-13: Simon Goldschmidt + * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing + err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN: + use EALRADY instead of -1 + + 2011-03-13: Simon Goldschmidt + * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the + connection has been aborted by err_tcp (since this is not a normal closing + procedure). + + 2011-03-13: Simon Goldschmidt + * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind + with pcb->state != CLOSED + + 2011-02-17: Simon Goldschmidt + * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in + documentation + + 2011-02-17: Simon Goldschmidt + * many files: Added missing U/UL modifiers to fix 16-bit-arch portability. + + 2011-01-24: Simon Goldschmidt + * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems + + 2010-12-02: Simon Goldschmidt + * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal. + + 2010-11-23: Simon Goldschmidt + * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for + LWIP_SO_RCVBUF and ioctl/FIONREAD. + + 2010-11-23: Simon Goldschmidt + * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at + least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet. + + 2010-11-23: Simon Goldschmidt + * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after + refusing 'refused_data' again. + + 2010-11-22: Simon Goldschmidt + * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS + after a successful nonblocking connection. + + 2010-11-22: Simon Goldschmidt + * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr + must be sent link-local + + 2010-11-22: Simon Goldschmidt + * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for + LWIP_TIMERS==0 + + 2010-11-20: Simon Goldschmidt + * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number + + 2010-11-20: Simon Goldschmidt + * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to + resemble other stacks. + + 2010-11-20: Simon Goldschmidt + * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else + no-copy TCP writes will never succeed. + + 2010-11-20: Simon Goldschmidt + * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does + not match documentation: return ERR_ARG instead of ERR_VAL if not + initialized or wrong argument. + + 2010-10-20: Simon Goldschmidt + * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16 + + 2010-10-05: Simon Goldschmidt + * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when + replugging the network cable after an AutoIP address was assigned. + + 2010-08-10: Simon Goldschmidt + * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs + + 2010-08-03: Simon Goldschmidt + * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625) + + 2010-08-01: Simon Goldschmidt (patch by Greg Renda) + * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big + endian architectures) + + 2010-07-28: Simon Goldschmidt + * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP + disabled. + + 2010-07-27: Simon Goldschmidt + * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no + harm but never did anything + + 2010-07-21: Simon Goldschmidt + * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not + add IP options) + + 2010-07-16: Kieran Mansley + * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator + + 2010-07-10: Simon Goldschmidt + * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options + + 2010-06-30: Simon Goldschmidt + * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in + netconn_delete) + + 2010-06-28: Kieran Mansley + * timers.c remove unportable printing of C function pointers + + 2010-06-24: Simon Goldschmidt + * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag + NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading + + 2010-06-24: Simon Goldschmidt + * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly + implemented shutdown at socket level. + + 2010-06-21: Simon Goldschmidt + * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has + problems with zero-copy DMA MACs) by adding custom pbufs and implementing + custom pbufs that reference other (original) pbufs. Additionally set + IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side. + + 2010-06-15: Simon Goldschmidt + * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses + + 2010-06-14: Simon Goldschmidt + * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses + + 2010-06-12: Simon Goldschmidt + * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop + state + + 2010-05-17: Simon Goldschmidt + * netdb.c: Correctly NULL-terminate h_addr_list + + 2010-05-16: Simon Goldschmidt + * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent + "symbol already defined" i.e. when linking to winsock + + 2010-05-05: Simon Goldschmidt + * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may + overflow) + + 2010-04-21: Simon Goldschmidt + * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening + connection) + + 2010-03-28: Luca Ceresoli + * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers + + 2010-03-27: Luca Ceresoli + * mib2.c: patch #7130: remove meaningless const qualifiers + + 2010-03-26: Simon Goldschmidt + * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too + + 2010-03-26: Simon Goldschmidt + * various files: Fixed compiling with different options disabled (TCP/UDP), + triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled + + 2010-03-25: Simon Goldschmidt + * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly + + 2010-03-25: Simon Goldschmidt + * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side + overrunning our rcv_wnd in ooseq case. + + 2010-03-22: Simon Goldschmidt + * tcp.c: tcp_listen() did not copy the pcb's prio. + + 2010-03-19: Simon Goldschmidt + * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set + + 2010-03-14: Simon Goldschmidt + * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports + where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h + and basing PBUF_LINK_HLEN on it. + + 2010-03-08: Simon Goldschmidt + * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections + when assiging routable address): when checking incoming packets and + aborting existing connection on address change, filter out link-local + addresses. + + 2010-03-06: Simon Goldschmidt + * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING + + 2010-03-06: Simon Goldschmidt + * ipv4/ip.c: Don't try to forward link-local addresses + + 2010-03-06: Simon Goldschmidt + * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal- + addresses to gw + + 2010-03-05: Simon Goldschmidt + * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type + and state. + + 2010-03-05: Simon Goldschmidt + * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split + into multiple calls to tcp_write. + + 2010-02-21: Simon Goldschmidt + * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep + the implementation of DNS_USES_STATIC_BUF==1) + + 2010-02-20: Simon Goldschmidt + * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement + close() vs. shutdown(). Now the application does not get any more + recv callbacks after calling tcp_close(). Added tcp_shutdown(). + + 2010-02-19: Simon Goldschmidt + * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent + confusion with realloc() + + 2010-02-15: Simon Goldschmidt/Stephane Lesage + * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK + (fixes bug #28899) + + 2010-02-14: Simon Goldschmidt + * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with + LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and + admin-status of a netif are up + + 2010-02-14: Simon Goldschmidt + * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet + reception and is not really necessary + + 2010-02-14: Simon Goldschmidt + * etharp.c/.h: Fixed ARP input processing: only add a new entry if a + request was directed as us (RFC 826, Packet Reception), otherwise + only update existing entries; internalized some functions + + 2010-02-14: Simon Goldschmidt + * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be + disabled on netif used for PPPoE) by adding a new netif flag + (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet + device but prevents usage of ARP (so that ethernet_input can be used + for PPPoE). + + 2010-02-12: Simon Goldschmidt + * netif.c: netif_set_link_up/down: only do something if the link state + actually changes + + 2010-02-12: Simon Goldschmidt/Stephane Lesage + * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking + connect) + + 2010-02-12: Simon Goldschmidt + * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h) + + 2010-02-09: Simon Goldschmidt + * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110 + (recv() makes receive window update for data that wasn't received by + application) + + 2010-02-09: Simon Goldschmidt/Stephane Lesage + * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out + or any netconn_recv() error) + + 2010-02-09: Simon Goldschmidt + * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets) + + 2010-02-09: Simon Goldschmidt + * netif.c: For loopback packets, adjust the stats- and snmp-counters + for the loopback netif. + + 2010-02-08: Simon Goldschmidt + * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity + since they are not used anywhere else. + + 2010-02-08: Simon Goldschmidt (Stéphane Lesage) + * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats + (patch from bug #28798) + + 2010-02-08: Simon Goldschmidt (Stéphane Lesage) + * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and + another bug when LWIP_RAND() returns zero. + + 2010-02-04: Simon Goldschmidt + * nearly every file: Use macros defined in ip_addr.h (some of them new) + to work with IP addresses (preparation for bug #27352 - Change ip_addr + from struct to typedef (u32_t) - and better code). + + 2010-01-31: Simon Goldschmidt + * netif.c: Don't call the link-callback from netif_set_up/down() since + this invalidly retriggers DHCP. + + 2010-01-29: Simon Goldschmidt + * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the + portability file inet.h and its contents from the stack: moved htonX- + functions to def.h (and the new def.c - they are not ipv4 dependent), + let inet.h depend on ip_addr.h and not the other way round. + This fixes bug #28732. + + 2010-01-28: Kieran Mansley + * tcp.c: Ensure ssthresh >= 2*MSS + + 2010-01-27: Simon Goldschmidt + * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv + callback can lead to accessing unallocated memory. As a consequence, + ERR_ABRT means the application has called tcp_abort()! + + 2010-01-25: Simon Goldschmidt + * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY + not implemented in SNMP): write-only or not-accessible are still + returned by getnext (though not by get) + + 2010-01-24: Simon Goldschmidt + * snmp: Renamed the private mib node from 'private' to 'mib_private' to + not use reserved C/C++ keywords + + 2010-01-23: Simon Goldschmidt + * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less + than 1 ms + + 2010-01-21: Simon Goldschmidt + * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called + if tcp_enqueue fails) both in raw- and netconn-API + + 2010-01-19: Simon Goldschmidt + * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp + + 2010-01-18: Iordan Neshev/Simon Goldschmidt + * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some + bugfix backports from 2.4.x. + + 2010-01-18: Simon Goldschmidt + * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong + + 2010-01-17: Simon Goldschmidt + * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c): + task #10102: "netconn: clean up conn->err threading issues" by adding + error return value to struct api_msg_msg + + 2010-01-17: Simon Goldschmidt + * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept() + to return err_t (bugs #27709 and #28087) + + 2010-01-14: Simon Goldschmidt + * ...: Use typedef for function prototypes throughout the stack. + + 2010-01-13: Simon Goldschmidt + * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive + window = 0) by correctly draining recvmbox/acceptmbox + + 2010-01-11: Simon Goldschmidt + * pap.c: Fixed bug #13315 (PPP PAP authentication can result in + erroneous callbacks) by copying the code from recent pppd + + 2010-01-10: Simon Goldschmidt + * raw.c: Fixed bug #28506 (raw_bind should filter received packets) + + 2010-01-10: Simon Goldschmidt + * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)()) + + 2010-01-08: Simon Goldschmidt + * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535) + + 2010-01-08: Simon Goldschmidt + * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string + passed to dns_local_addhost() might be volatile + + 2010-01-07: Simon Goldschmidt + * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too + + 2010-01-06: Simon Goldschmidt + * netdb.h: Fixed bug #28496: missing include guards in netdb.h + + 2009-12-31: Simon Goldschmidt + * many ppp files: Reorganised PPP source code from ucip structure to pppd + structure to easily compare our code against the pppd code (around v2.3.1) + + 2009-12-27: Simon Goldschmidt + * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted + unit test + + +(STABLE-1.3.2) + + ++ New features: + + 2009-10-27 Simon Goldschmidt/Stephan Lesage + * netifapi.c/.h: Added netifapi_netif_set_addr() + + 2009-10-07 Simon Goldschmidt/Fabian Koch + * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to + support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO) + + 2009-08-26 Simon Goldschmidt/Simon Kallweit + * slipif.c/.h: bug #26397: SLIP polling support + + 2009-08-25 Simon Goldschmidt + * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN), + New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK. + + 2009-08-25 Simon Goldschmidt + * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*) + + 2009-08-24 Jakob Stoklund Olesen + * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond + to netif_set_link_up(). + + 2009-08-23 Simon Goldschmidt + * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state + to a human-readable string. + + ++ Bugfixes: + + 2009-12-24: Kieran Mansley + * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing + (BUG#28241) + + 2009-12-06: Simon Goldschmidt + * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can + be statically allocated (like in ucip) + + 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev) + * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT + + 2009-12-03: Simon Goldschmidt + * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit + could have non-zero length + + 2009-12-02: Simon Goldschmidt + * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting + tcp_input_pcb until after calling the pcb's callbacks + + 2009-11-29: Simon Goldschmidt + * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of- + sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code + + 2009-11-29: Simon Goldschmidt + * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by + queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty + + 2009-11-26: Simon Goldschmidt + * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending + segment + + 2009-11-26: Simon Goldschmidt + * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle + algorithm at PCB level + + 2009-11-22: Simon Goldschmidt + * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent + + 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach) + * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when + reusing time-wait pcb + + 2009-11-20: Simon Goldschmidt (patch by Albert Bartel) + * sockets.c: Fixed bug #28062: Data received directly after accepting + does not wake up select + + 2009-11-11: Simon Goldschmidt + * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo) + + 2009-10-30: Simon Goldschmidt + * opt.h: Increased default value for TCP_MSS to 536, updated default + value for TCP_WND to 4*TCP_MSS to keep delayed ACK working. + + 2009-10-28: Kieran Mansley + * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code + to follow algorithm from TCP/IP Illustrated + + 2009-10-27: Kieran Mansley + * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK + + 2009-10-25: Simon Goldschmidt + * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if + pcb->recv is NULL to keep rcv_wnd correct) + + 2009-10-25: Simon Goldschmidt + * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state + + 2009-10-23: Simon Goldschmidt (David Empson) + * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes + + 2009-10-21: Simon Goldschmidt + * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and + trailing 1 byte len (SYN/FIN) + + 2009-10-21: Simon Goldschmidt + * tcp_out.c: Fixed bug #27315: zero window probe and FIN + + 2009-10-19: Simon Goldschmidt + * dhcp.c/.h: Minor code simplification (don't store received pbuf, change + conditional code to assert where applicable), check pbuf length before + testing for valid reply + + 2009-10-19: Simon Goldschmidt + * dhcp.c: Removed most calls to udp_connect since they aren't necessary + when using udp_sendto_if() - always stay connected to IP_ADDR_ANY. + + 2009-10-16: Simon Goldschmidt + * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop + valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is + enabled + + 2009-10-15: Simon Goldschmidt (Oleg Tyshev) + * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit + + 2009-10-15: Simon Goldschmidt + * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv() + timeout + + 2009-10-15: Simon Goldschmidt + * autoip.c: Fixed bug #27704: autoip starts with wrong address + LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead + of network byte order + + 2009-10-11 Simon Goldschmidt (Jörg Kesten) + * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments + which are not consecutive when retransmitting unacked segments + + 2009-10-09 Simon Goldschmidt + * opt.h: Fixed default values of some stats to only be enabled if used + Fixes bug #27338: sys_stats is defined when NO_SYS = 1 + + 2009-08-30 Simon Goldschmidt + * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK + function" by checking for loopback before calling ip_frag + + 2009-08-25 Simon Goldschmidt + * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0 + + 2009-08-23 Simon Goldschmidt + * ppp.c: bug #27078: Possible memory leak in pppInit() + + 2009-08-23 Simon Goldschmidt + * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result + is error. + + 2009-08-23 Simon Goldschmidt + * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF + Fixed wrong parenthesis, added check in init.c + + 2009-08-23 Simon Goldschmidt + * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms + + 2009-08-23 Simon Goldschmidt + * many ppp files: bug #27267: Added include to string.h where needed + + 2009-08-23 Simon Goldschmidt + * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian) + + +(STABLE-1.3.1) + + ++ New features: + + 2009-05-10 Simon Goldschmidt + * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option + LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only + one pbuf to help MACs that don't support scatter-gather DMA. + + 2009-05-09 Simon Goldschmidt + * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming + ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN + + 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen + * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive + extended info about the currently received packet. + + 2009-04-27 Simon Goldschmidt + * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1 + + 2009-04-25 Simon Goldschmidt + * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next + bigger malloc pool if one is empty (only usable with MEM_USE_POOLS). + + 2009-04-21 Simon Goldschmidt + * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static + hosts table. New configuration options DNS_LOCAL_HOSTLIST and + DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined + as an external function for lookup. + + 2009-04-15 Simon Goldschmidt + * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique + + 2009-03-31 Kieran Mansley + * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for + TCP timestamp options, off by default. Rework tcp_enqueue() to + take option flags rather than specified option data + + 2009-02-18 Simon Goldschmidt + * cc.h: Added printf formatter for size_t: SZT_F + + 2009-02-16 Simon Goldschmidt (patch by Rishi Khan) + * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast + pings + + 2009-02-12 Simon Goldschmidt + * init.h: Added LWIP_VERSION to get the current version of the stack + + 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler) + * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead + of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc + is otherwise used) + + 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach) + * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial() + is only used by UDPLITE at present, so conditionalise it. + + 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli) + * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP + "seed" address. This should reduce AUTOIP conflicts if + LWIP_AUTOIP_CREATE_SEED_ADDR is overridden. + + 2008-10-02 Jonathan Larmour and Rishi Khan + * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking + socket. + + 2008-06-30 Simon Goldschmidt + * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from + interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows + mem_free to run between mem_malloc iterations. Added illegal counter for + mem stats. + + 2008-06-27 Simon Goldschmidt + * stats.h/.c, some other files: patch #6483: stats module improvement: + Added defines to display each module's statistic individually, added stats + defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter. + + 2008-06-17 Simon Goldschmidt + * err.h: patch #6459: Made err_t overridable to use a more efficient type + (define LWIP_ERR_T in cc.h) + + 2008-06-17 Simon Goldschmidt + * slipif.c: patch #6480: Added a configuration option for slipif for symmetry + to loopif + + 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli) + * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly + modified version of patch # 6370: Moved loopif code to netif.c so that + loopback traffic is supported on all netifs (all local IPs). + Added option to limit loopback packets for each netifs. + + + ++ Bugfixes: + 2009-08-12 Kieran Mansley + * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when + out of window or out of order properly + + 2009-08-12 Kieran Mansley + * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1 + + 2009-07-28 Simon Goldschmidt + * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s + + 2009-07-27 Kieran Mansley + * api.h api_msg.h netdb.h sockets.h: add missing #include directives + + 2009-07-09 Kieran Mansley + * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for + recv_avail and don't increment counters until message successfully + sent to mbox + + 2009-06-25 Kieran Mansley + * api_msg.c api.h: BUG26722: initialise netconn write variables + in netconn_alloc + + 2009-06-25 Kieran Mansley + * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set + + 2009-06-25 Kieran Mansley + * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct + simultaneous close behaviour, and make snd_nxt have the same meaning + as in the RFCs. + + 2009-05-12 Simon Goldschmidt + * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on + arp_table / uses etharp_query" by adding etharp_gratuitous() + + 2009-05-12 Simon Goldschmidt + * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options + to the IP header (used by igmp_ip_output_if) + + 2009-05-06 Simon Goldschmidt + * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if + defined) for SWAP_BYTES_IN_WORD to speed up checksumming. + + 2009-05-05 Simon Goldschmidt + * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select() + to crash + + 2009-05-04 Simon Goldschmidt + * init.c: snmp was not initialized in lwip_init() + + 2009-05-04 Frédéric Bernon + * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled. + + 2009-05-03 Simon Goldschmidt + * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full + (and unsent->next == NULL) + + 2009-05-02 Simon Goldschmidt + * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after + 1.3.0 in CVS only) - fixes compilation of ppp_oe.c + + 2009-05-02 Simon Goldschmidt + * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields + + 2009-05-01 Simon Goldschmidt + * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets + + 2009-05-01 Simon Goldschmidt + * ppp.c: bug #24228: Memory corruption with PPP and DHCP + + 2009-04-29 Frédéric Bernon + * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the + SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception + of broadcast packets even when this option wasn't set. Port maintainers + which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h. + If you want this option also filter broadcast on recv operations, you also + have to set IP_SOF_BROADCAST_RECV=1 in opt.h. + + 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen + * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and + DHCP/AUTOIP cooperation + + 2009-04-25 Simon Goldschmidt, Oleg Tyshev + * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd + Fixed by sorting the unsent and unacked queues (segments are inserted at the + right place in tcp_output and tcp_rexmit). + + 2009-04-25 Simon Goldschmidt + * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation + when debugging": memp_sizes contained the wrong sizes (including sanity + regions); memp pools for MEM_USE_POOLS were too small + + 2009-04-24 Simon Goldschmidt, Frédéric Bernon + * inet.c: patch #6765: Fix a small problem with the last changes (incorrect + behavior, with with ip address string not ended by a '\0', a space or a + end of line) + + 2009-04-19 Simon Goldschmidt + * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails, + pcb->err is called, not pcb->connected (with an error code). + + 2009-04-19 Simon Goldschmidt + * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with + no-copy-tcpwrite": deallocate option data, only concat segments with same flags + + 2009-04-19 Simon Goldschmidt + * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated + in the header pbuf, not the data pbuf) + + 2009-04-18 Simon Goldschmidt + * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore() + + 2009-04-15 Simon Goldschmidt + * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp + + 2009-04-15 Simon Goldschmidt + * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in + + 2009-04-15 Simon Goldschmidt + * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function + ip_hinted_output() (for smaller code mainly) + + 2009-04-15 Simon Goldschmidt + * inet.c: patch #6765: Supporting new line characters in inet_aton() + + 2009-04-15 Simon Goldschmidt + * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option; + Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu + is big enough in dhcp_start + + 2009-04-15 Simon Goldschmidt + * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak + + 2009-04-15 Simon Goldschmidt + * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY + + 2009-04-15 Simon Goldschmidt + * sockets.c: bug #26121: set_errno can be overridden + + 2009-04-09 Kieran Mansley (patch from Luca Ceresoli ) + * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when + LWIP_TCP==0 + + 2009-04-09 Kieran Mansley (patch from Roy Lee ) + * tcp.h: Patch#6802 Add do-while-clauses to those function like + macros in tcp.h + + 2009-03-31 Kieran Mansley + * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window + updates are calculated and sent (BUG20515) + + * tcp_in.c: cope with SYN packets received during established states, + and retransmission of initial SYN. + + * tcp_out.c: set push bit correctly when tcp segments are merged + + 2009-03-27 Kieran Mansley + * tcp_out.c set window correctly on probes (correcting change made + yesterday) + + 2009-03-26 Kieran Mansley + * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping + connections where no reset required (bug #25622) + + * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes + (bug #20779) + + 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach) + * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be + too small depending on MEM_ALIGNMENT + + 2009-02-16 Simon Goldschmidt + * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard; + converted size argument of netconn_write to 'size_t' + + 2009-02-16 Simon Goldschmidt + * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host + by moving accept callback function pointer to TCP_PCB_COMMON + + 2009-02-12 Simon Goldschmidt + * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size" + option) + + 2009-02-11 Simon Goldschmidt + * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start) + + 2009-02-11 Simon Goldschmidt + * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize: + RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv()) + + 2009-02-10 Simon Goldschmidt + * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD: + Accepts_pending is decrease on a corresponding listen pcb when a connection + in state SYN_RCVD is close. + + 2009-01-28 Jonathan Larmour + * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run + out of pool pbufs. + + 2008-12-19 Simon Goldschmidt + * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2 + + 2008-12-10 Tamas Somogyi, Frédéric Bernon + * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and + port uses deleted netbuf. + + 2008-10-18 Simon Goldschmidt + * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length + in tcp_parseopt + + 2008-10-15 Simon Goldschmidt + * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers + by packing the struct ip_reass_helper. + + 2008-10-03 David Woodhouse, Jonathan Larmour + * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address. + + 2008-10-02 Jonathan Larmour + * dns.c: Hard-code structure sizes, to avoid issues on some compilers where + padding is included. + + 2008-09-30 Jonathan Larmour + * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an + assertion check that addrlen isn't NULL. + + 2008-09-30 Jonathan Larmour + * tcp.c: Fix bug #24227, wrong error message in tcp_bind. + + 2008-08-26 Simon Goldschmidt + * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and + inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h + + 2008-08-14 Simon Goldschmidt + * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when + tcp_close returns != ERR_OK) + + 2008-07-08 Frédéric Bernon + * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters + in macros, mainly if MEM_STATS=0 and MEMP_STATS=0). + + 2008-06-24 Jonathan Larmour + * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused + if tcp_seg_copy fails. + + 2008-06-17 Simon Goldschmidt + * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations) + and created defines for swapping bytes and folding u32 to u16. + + 2008-05-30 Kieran Mansley + * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd + rather than rcv_ann_wnd when deciding if packets are in-window. + Contributed by + + 2008-05-30 Kieran Mansley + * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow + passing as function pointers when MEM_LIBC_MALLOC is defined. + + 2008-05-09 Jonathan Larmour + * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to + stop it being treated as a fatal error. + + 2008-04-15 Simon Goldschmidt + * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP + (flag now cleared) + + 2008-03-27 Simon Goldschmidt + * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free + from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1 + in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs + or heap memory from interrupt context + + 2008-03-26 Simon Goldschmidt + * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote + host sent a zero mss as TCP option. + + +(STABLE-1.3.0) + + ++ New features: + + 2008-03-10 Jonathan Larmour + * inet_chksum.c: Allow choice of one of the sample algorithms to be + made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM. + + 2008-01-22 Frédéric Bernon + * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in + TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names. + + 2008-01-14 Frédéric Bernon + * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable + to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the + tcp_recv callback (see rawapi.txt). + + 2008-01-14 Frédéric Bernon, Marc Chaland + * ip.c: Integrate patch #6369" ip_input : checking before realloc". + + 2008-01-12 Frédéric Bernon + * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field + netconn::sem per netconn::op_completed like suggested for the task #7490 + "Add return value to sys_mbox_post". + + 2008-01-12 Frédéric Bernon + * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE, + DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues + sizes), like suggested for the task #7490 "Add return value to sys_mbox_post". + + 2008-01-10 Frédéric Bernon + * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490 + "Add return value to sys_mbox_post". tcpip_callback is always defined as + "blocking" ("block" parameter = 1). + + 2008-01-10 Frédéric Bernon + * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field + netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490 + "Add return value to sys_mbox_post". + + 2008-01-05 Frédéric Bernon + * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h: + Introduce changes for task #7490 "Add return value to sys_mbox_post" with some + modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which + indicate the number of pointers query by the mailbox. There is three defines + in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the + netconn::acceptmbox. Port maintainers, you can decide to just add this new + parameter in your implementation, but to ignore it to keep the previous behavior. + The new sys_mbox_trypost function return a value to know if the mailbox is + full or if the message is posted. Take a look to sys_arch.txt for more details. + This new function is used in tcpip_input (so, can be called in an interrupt + context since the function is not blocking), and in recv_udp and recv_raw. + + 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour + * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c, + tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the + "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add + documentation in the rawapi.txt file. + + 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm) + * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer + + 2007-12-31 Frédéric Bernon, Luca Ceresoli + * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets + in autoip". The change in etharp_raw could be removed, since all calls to + etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be + wrong in the future. + + 2007-12-30 Frédéric Bernon, Tom Evans + * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address + Filtering" reported by Tom Evans. + + 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour + * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c, + sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API + applications have to call 'tcp_accepted(pcb)' in their accept callback to + keep accepting new connections. + + 2007-12-13 Frédéric Bernon + * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result" + by err_t type. Add a new err_t code "ERR_INPROGRESS". + + 2007-12-12 Frédéric Bernon + * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles + are the one which have ram usage. + + 2007-12-05 Frédéric Bernon + * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static + set of variables (=0) or a local one (=1). In this last case, your port should + provide a function "struct hostent* sys_thread_hostent( struct hostent* h)" + which have to do a copy of "h" and return a pointer ont the "per-thread" copy. + + 2007-12-03 Simon Goldschmidt + * ip.c: ip_input: check if a packet is for inp first before checking all other + netifs on netif_list (speeds up packet receiving in most cases) + + 2007-11-30 Simon Goldschmidt + * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access + UDP: move a (connected) pcb selected for input to the front of the list of + pcbs so that it is found faster next time. Same for RAW pcbs that have eaten + a packet. + + 2007-11-28 Simon Goldschmidt + * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS + + 2007-11-25 Simon Goldschmidt + * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy + algorithm. + + 2007-11-24 Simon Goldschmidt + * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c + to the new file netdb.c; included lwip_getaddrinfo. + + 2007-11-21 Simon Goldschmidt + * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss + based on the MTU of the netif used to send. Enabled by default. Disable by + setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492. + + 2007-11-19 Frédéric Bernon + * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name + received match the name query), implement DNS_USES_STATIC_BUF (the place where + copy dns payload to parse the response), return an error if there is no place + for a new query, and fix some minor problems. + + 2007-11-16 Simon Goldschmidt + * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c + removed files: core/inet.c, core/inet6.c + Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into + inet and chksum part; changed includes in all lwIP files as appropriate + + 2007-11-16 Simon Goldschmidt + * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential + dns resolver function for netconn api (netconn_gethostbyname) and socket api + (gethostbyname/gethostbyname_r). + + 2007-11-15 Jim Pettinato, Frédéric Bernon + * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name + requests with RAW api interface. Initialization is done in lwip_init() with + build time options. DNS timer is added in tcpip_thread context. DHCP can set + DNS server ip addresses when options are received. You need to set LWIP_DNS=1 + in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get + some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo" + list with points to improve. + + 2007-11-06 Simon Goldschmidt + * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly + enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status + for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined. + + 2007-11-06 Simon Goldschmidt + * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include + core header files in api.h (ip/tcp/udp/raw.h) to hide the internal + implementation from netconn api applications. + + 2007-11-03 Frédéric Bernon + * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP & + RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled + by default). Netconn API users can use the netconn_recv_bufsize macro to access + it. This is a first release which have to be improve for TCP. Note it used the + netconn::recv_avail which need to be more "thread-safe" (note there is already + the problem for FIONREAD with lwip_ioctl/ioctlsocket). + + 2007-11-01 Frédéric Bernon, Marc Chaland + * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c: + Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api + layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api + layer. This option enable to delayed TCP PUSH flag on multiple "write" calls. + Note that previous "copy" parameter for "write" APIs is now called "apiflags". + + 2007-10-24 Frédéric Bernon + * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than + TCP_EVENT_xxx macros to get a code more readable. It could also help to remove + some code (like we have talk in "patch #5919 : Create compile switch to remove + select code"), but it could be done later. + + 2007-10-08 Simon Goldschmidt + * many files: Changed initialization: many init functions are not needed any + more since we now rely on the compiler initializing global and static + variables to zero! + + 2007-10-06 Simon Goldschmidt + * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY + to enqueue the received pbufs so that multiple packets can be reassembled + simultaneously and no static reassembly buffer is needed. + + 2007-10-05 Simon Goldschmidt + * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so + all netifs (or ports) can use it. + + 2007-10-05 Frédéric Bernon + * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the + common function to reduce a little bit the footprint (for all functions using + only the "netif" parameter). + + 2007-10-03 Frédéric Bernon + * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down, + netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce + a little bit the footprint (for all functions using only the "netif" parameter). + + 2007-09-15 Frédéric Bernon + * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF + option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for + netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for + IP_MULTICAST_TTL and IP_MULTICAST_IF. + + 2007-09-10 Frédéric Bernon + * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles + even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime() + each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can + decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but + call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime() + or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro. + This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside + snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only + when it's queried (any direct call to "sysuptime" is changed by a call to + snmp_get_sysuptime). + + 2007-09-09 Frédéric Bernon, Bill Florac + * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP, + and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags + if you want IGMP on an interface. igmp_stop() is now called inside netif_remove(). + igmp_report_groups() is now called inside netif_set_link_up() (need to have + LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait + the next query message to receive the matching multicast streams). + + 2007-09-08 Frédéric Bernon + * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains + IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change). + Use this new field to access to common pcb fields (ttl, tos, so_options, etc...). + Enable to access to these fields with LWIP_TCP=0. + + 2007-09-05 Frédéric Bernon + * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h, + ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option + LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default). + Be careful, disabling ICMP make your product non-compliant to RFC1122, but + help to reduce footprint, and to reduce "visibility" on the Internet. + + 2007-09-05 Frédéric Bernon, Bill Florac + * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list + for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new + parameters have to be provided: a task name, and a task stack size. For this + one, since it's platform dependant, you could define the best one for you in + your lwipopts.h. For port maintainers, you can just add these new parameters + in your sys_arch.c file, and but it's not mandatory, use them in your OS + specific functions. + + 2007-09-05 Frédéric Bernon + * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings + inside init.c for task #7142 "Sanity check user-configurable values". + + 2007-09-04 Frédéric Bernon, Bill Florac + * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by + memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the + value). It will avoid potential fragmentation problems, use a counter to know + how many times a group is used on an netif, and free it when all applications + leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity + check if LWIP_IGMP!=0). + + 2007-09-03 Frédéric Bernon + * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement". + Initialize igmp_mac_filter to NULL in netif_add (this field should be set in + the netif's "init" function). Use the "imr_interface" field (for socket layer) + and/or the "interface" field (for netconn layer), for join/leave operations. + The igmp_join/leavegroup first parameter change from a netif to an ipaddr. + This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany). + + 2007-08-30 Frédéric Bernon + * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions + from api/api_lib". Now netbuf API is independant of netconn, and can be used + with other API (application based on raw API, or future "socket2" API). Ports + maintainers just have to add src/api/netbuf.c in their makefile/projects. + + 2007-08-30 Frédéric Bernon, Jonathan Larmour + * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check + user-configurable values". + + 2007-08-29 Frédéric Bernon + * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start. + igmp_start is call inside netif_add. Now, igmp initialization is in the same + spirit than the others modules. Modify some IGMP debug traces. + + 2007-08-29 Frédéric Bernon + * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function" + Add lwip_init function to regroup all modules initializations, and to provide + a place to add code for task #7142 "Sanity check user-configurable values". + Ports maintainers should remove direct initializations calls from their code, + and add init.c in their makefiles. Note that lwip_init() function is called + inside tcpip_init, but can also be used by raw api users since all calls are + disabled when matching options are disabled. Also note that their is new options + in opt.h, you should configure in your lwipopts.h (they are enabled per default). + + 2007-08-26 Marc Boucher + * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL + since they can under certain circumstances be called with an invalid conn + pointer after the connection has been closed (and conn has been freed). + + 2007-08-25 Frédéric Bernon (Artem Migaev's Patch) + * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up". + Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set. + + 2007-08-22 Frédéric Bernon + * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK + to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release. + + 2007-08-22 Frédéric Bernon + * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT & + ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the + name is tcpip_input (we keep the name of 1.2.0 function). + + 2007-08-17 Jared Grubb + * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool + settings into new memp_std.h and optional user file lwippools.h. This adds + more dynamic mempools, and allows the user to create an arbitrary number of + mempools for mem_malloc. + + 2007-08-16 Marc Boucher + * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function; + otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely + close the connection. + + 2007-08-16 Marc Boucher + * sockets.c: lwip_accept(): check netconn_peer() error return. + + 2007-08-16 Marc Boucher + * mem.c, mem.h: Added mem_calloc(). + + 2007-08-16 Marc Boucher + * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT) + for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG + and starving other message types. + Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API + + 2007-08-16 Marc Boucher + * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf + type and flgs (later renamed to flags). + Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*. + Improved lwip_recvfrom(). TCP push now propagated. + + 2007-08-16 Marc Boucher + * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global + provided by etharp. + + 2007-08-16 Marc Boucher + * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h, + etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c: + Added PPPoE support and various PPP improvements. + + 2007-07-25 Simon Goldschmidt + * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial, + making netbuf_copy_partial use this function. + + 2007-07-25 Simon Goldschmidt + * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with + 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and + other stacks. + + 2007-07-13 Jared Grubb (integrated by Frédéric Bernon) + * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add + a link callback in the netif struct, and functions to handle it. Be carefull + for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c) + if you want to be sure to be compatible with future changes... + + 2007-06-30 Frédéric Bernon + * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions. + + 2007-06-21 Simon Goldschmidt + * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both + LWIP_AUTOIP =0 and =1 to remove redundant code. + + 2007-06-21 Simon Goldschmidt + * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option + MEM_USE_POOLS to use 4 pools with different sized elements instead of a + heap. This both prevents memory fragmentation and gives a higher speed + at the cost of more memory consumption. Turned off by default. + + 2007-06-21 Simon Goldschmidt + * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of + netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into + int to be able to send a bigger buffer than 64K with one time (mainly + used from lwip_send). + + 2007-06-21 Simon Goldschmidt + * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write + into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too. + + 2007-06-21 Simon Goldschmidt + * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in + netconn_write from api_lib.c to api_msg.c to also prevent multiple context- + changes on low memory or empty send-buffer. + + 2007-06-18 Simon Goldschmidt + * etharp.c, etharp.h: Changed etharp to use a defined hardware address length + of 6 to avoid loading netif->hwaddr_len every time (since this file is only + used for ethernet and struct eth_addr already had a defined length of 6). + + 2007-06-17 Simon Goldschmidt + * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets + to disable UDP checksum generation on transmit. + + 2007-06-13 Frédéric Bernon, Simon Goldschmidt + * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid + pointers or parameters, and let the possibility to redefined it in cc.h. Use + this macro to check "conn" parameter in api_msg.c functions. + + 2007-06-11 Simon Goldschmidt + * sockets.c, sockets.h: Added UDP lite support for sockets + + 2007-06-10 Simon Goldschmidt + * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled + by default) to switch off UDP-Lite support if not needed (reduces udp.c code + size) + + 2007-06-09 Dominik Spies (integrated by Frédéric Bernon) + * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h: + AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and + LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt + (see TODO mark in the source code). + + 2007-06-09 Simon Goldschmidt + * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for + etharp_output() to match netif->output so etharp_output() can be used + directly as netif->output to save one function call. + + 2007-06-08 Simon Goldschmidt + * netif.h, ethernetif.c, slipif.c, loopif.c: Added define + NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables, + added initialization of those to ethernetif, slipif and loopif. + + 2007-05-18 Simon Goldschmidt + * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF + (defaulting to off for now) that can be set to 0 to send fragmented + packets by passing PBUF_REFs down the stack. + + 2007-05-23 Frédéric Bernon + * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP + connections, such present in patch #5959. + + 2007-05-23 Frédéric Bernon + * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx + code in only one part... + + 2007-05-18 Simon Goldschmidt + * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp + elements to overflow. This is achieved by adding some bytes before and after + each pool element (increasing their size, of course), filling them with a + prominent value and checking them on freeing the element. + Set it to 2 to also check every element in every pool each time memp_malloc() + or memp_free() is called (slower but more helpful). + + 2007-05-10 Simon Goldschmidt + * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for + PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce + code size. + + 2007-05-11 Frédéric Bernon + * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c: + Include a function pointer instead of a table index in the message to reduce + footprint. Disable some part of lwip_send and lwip_sendto if some options are + not set (LWIP_TCP, LWIP_UDP, LWIP_RAW). + + 2007-05-10 Simon Goldschmidt + * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus + \ extern "C" {' in all header files. Now you can write your application using + the lwIP stack in C++ and simply #include the core files. Note I have left + out the netif/ppp/*h header files for now, since I don't know which files are + included by applications and which are for internal use only. + + 2007-05-09 Simon Goldschmidt + * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library + memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for + situations where some compilers might inline the copy and save a function + call. Also replaced all calls to memcpy() with calls to (S)MEMCPY(). + + 2007-05-08 Simon Goldschmidt + * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc()) + to be overriden in case the C-library malloc implementation is not protected + against concurrent access. + + 2007-05-04 Simon Goldschmidt (Atte Kojo) + * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending + multiple packets to the same host. + + 2007-05-04 Frédéric Bernon, Jonathan Larmour + * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible + to corrupt remote addr/port connection state". Reduce problems "not enought memory" with + netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between + sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function. + Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct, + these fields are now renamed "addr" & "port". + + 2007-04-11 Jonathan Larmour + * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new + sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return + with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro + by the port in sys_arch.h if desired. + + 2007-04-06 Frédéric Bernon, Simon Goldschmidt + * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API + allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp + clients, using new functions from netifapi.h. Disable as default (no port change to do). + + 2007-04-05 Frédéric Bernon + * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant. + + 2007-04-04 Simon Goldschmidt + * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x) + use this for and architecture-independent form to tell the compiler you intentionally + are not using this variable. Can be overriden in cc.h. + + 2007-03-28 Frédéric Bernon + * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to + define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded + string, point on one of your's ethernetif field, or alloc a string you will free yourself). + It will be used by DHCP to register a client hostname, but can also be use when you call + snmp_set_sysname. + + 2007-03-28 Frédéric Bernon + * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to + initialize a network interface's flag with. It tell this interface is an ethernet + device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility + Support for IPv4" section 4.6) when interface is "up" with netif_set_up(). + + 2007-03-26 Frédéric Bernon, Jonathan Larmour + * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build + time if you only use PPP or SLIP. The default is enable. Note we don't have to call + etharp_init in your port's initilization sequence if you use tcpip.c, because this call + is done in tcpip_init function. + + 2007-03-22 Frédéric Bernon + * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the + new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in + your lwipopts.h. More, unused counters are not defined in the stats structs, and not + display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined + but never used. Fix msg_in.c with the correct #if test for a stat display. + + 2007-03-21 Kieran Mansley + * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com). + Provides callback on netif up/down state change. + + 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds + * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c, + ip.c, netif.h, tcpip.c, opt.h: + New configuration option LWIP_IGMP to enable IGMP processing. Based on only one + filter per all network interfaces. Declare a new function in netif to enable to + control the MAC filter (to reduce lwIP traffic processing). + + 2007-03-11 Frédéric Bernon + * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can + be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this + unless you know what you're doing (default are RFC1122 compliant). Note + that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds. + + 2007-03-08 Frédéric Bernon + * tcp.h: Keepalive values can be configured at compile time, but don't change + this unless you know what you're doing (default are RFC1122 compliant). + + 2007-03-08 Frédéric Bernon + * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h: + Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO + on UDP sockets/netconn. + + 2007-03-08 Simon Goldschmidt + * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time. + + 2007-03-06 Frédéric Bernon + * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h: + Implement SO_RCVTIMEO on UDP sockets/netconn. + + 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt) + * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated + on the stack and remove the API msg type from memp + + 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt) + * sockets.h, sockets.c: Move socket initialization to new + lwip_socket_init() function. + NOTE: this changes the API with ports. Ports will have to be + updated to call lwip_socket_init() now. + + 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt) + * api_lib.c: Use memcpy in netbuf_copy_partial. + + + ++ Bug fixes: + + 2008-03-17 Frédéric Bernon, Ed Kerekes + * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have + some problems to fill the IP header on some targets, use now the + ip.h macros to do it). + + 2008-03-13 Frédéric Bernon + * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using + (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a + TCP connection caused a crash. Note that using (lwip_)recvfrom + like this is a bit slow and that using (lwip)getpeername is the + good lwip way to do it (so, using recv is faster on tcp sockets). + + 2008-03-12 Frédéric Bernon, Jonathan Larmour + * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's + recv_raw() does not consume data", and the ping sample (with + LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom + returned the IP payload, without the IP header). + + 2008-03-04 Jonathan Larmour + * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors + and/or warnings on some systems where mem_size_t and size_t differ. + * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc. + + 2008-03-04 Kieran Mansley (contributions by others) + * Numerous small compiler error/warning fixes from contributions to + mailing list after 1.3.0 release candidate made. + + 2008-01-25 Cui hengbin (integrated by Frédéric Bernon) + * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures. + + 2008-01-15 Kieran Mansley + * tcp_out.c: BUG20511. Modify persist timer to start when we are + prevented from sending by a small send window, not just a zero + send window. + + 2008-01-09 Jonathan Larmour + * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid + conflict with Linux system headers. + + 2008-01-06 Jonathan Larmour + * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP + address entirely on receiving a DHCPNAK, and restarting discovery. + + 2007-12-21 Simon Goldschmidt + * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail + is not protected" by using new macros for interlocked access to modify/test + netconn->recv_avail. + + 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev) + * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state) + + 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm) + * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling + of silly window avoidance and prevent lwIP from shrinking the window) + + 2007-12-04 Simon Goldschmidt + * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last + data packet was lost): add assert that all segment lists are empty in + tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED + state from LAST_ACK in tcp_process + + 2007-12-02 Simon Goldschmidt + * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET + If including for system-struct timeval, LWIP_TIMEVAL_PRIVATE now + has to be set to 0 in lwipopts.h + + 2007-12-02 Simon Goldschmidt + * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always + allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen + netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox. + This is a fix for thread-safety and allocates all items needed for a netconn + when the netconn is created. + + 2007-11-30 Simon Goldschmidt + * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple + netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed + to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same + port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address) + + 2007-11-27 Simon Goldschmidt + * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by + letting ip_route only use netifs that are up. + + 2007-11-27 Simon Goldschmidt + * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF + and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and + sockets block most operations once they have seen a fatal error. + + 2007-11-27 Simon Goldschmidt + * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the + netif to send as an argument (to be able to send on netifs that are down). + + 2007-11-26 Simon Goldschmidt + * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs + arrive out-of-order + + 2007-11-21 Simon Goldschmidt + * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early + Fixed the nagle algorithm; nagle now also works for all raw API applications + and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY' + + 2007-11-12 Frédéric Bernon + * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most + of the netconn_peer and netconn_addr processing is done inside tcpip_thread + context in do_getaddr. + + 2007-11-10 Simon Goldschmidt + * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can + happen any time). Now the packet simply isn't enqueued when out of memory. + + 2007-11-01 Simon Goldschmidt + * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or + TCP_MSS if that is smaller) as long as no MSS option is received from the + remote host. + + 2007-11-01 Simon Goldschmidt + * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN) + is now based on TCP_MSS instead of pcb->mss (on passive open now effectively + sending our configured TCP_MSS instead of the one received). + + 2007-11-01 Simon Goldschmidt + * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was + calculated based on the configured TCP_MSS, not on the MSS option received + with SYN+ACK. + + 2007-10-09 Simon Goldschmidt + * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too + short and also was generated wrong if checksum coverage != tot_len; + receive: checksum was calculated wrong if checksum coverage != tot_len + + 2007-10-08 Simon Goldschmidt + * mem.c: lfree was not updated in mem_realloc! + + 2007-10-07 Frédéric Bernon + * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential + crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT: + this change cause an API breakage for netconn_addr, since a parameter + type change. Any compiler should cause an error without any changes in + yours netconn_peer calls (so, it can't be a "silent change"). It also + reduce a little bit the footprint for socket layer (lwip_getpeername & + lwip_getsockname use now a common lwip_getaddrname function since + netconn_peer & netconn_addr have the same parameters). + + 2007-09-20 Simon Goldschmidt + * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state) + by checking tcp_tw_pcbs also + + 2007-09-19 Simon Goldschmidt + * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies) + + 2007-09-15 Mike Kleshov + * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used) + + 2007-09-06 Frédéric Bernon + * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove + it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which + already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h" + if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h. + + 2007-08-30 Frédéric Bernon + * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces, + and fix some coding style. + + 2007-08-28 Frédéric Bernon + * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any + kind of packets. These packets are considered like Ethernet packets (payload + pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets + are considered like IP packets (payload pointing to iphdr). + + 2007-08-27 Frédéric Bernon + * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error + problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state + and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT). + + 2007-08-24 Kieran Mansley + * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy + compiler (Paradigm C++) + + 2007-08-09 Frédéric Bernon, Bill Florac + * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement. + Introduce IGMP_STATS to centralize statistics management. + + 2007-08-09 Frédéric Bernon, Bill Florac + * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast + packet on a udp pcb binded on an netif's IP address, and not on "any". + + 2007-08-09 Frédéric Bernon, Bill Florac + * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement. + This is mainly on using lookup/lookfor, and some coding styles... + + 2007-07-26 Frédéric Bernon (and "thedoctor") + * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages. + + 2007-07-25 Simon Goldschmidt + * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if + tcp_output fails in tcp_close, the code in do_close_internal gets simpler + (tcp_output is called again later from tcp timers). + + 2007-07-25 Simon Goldschmidt + * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old + copy_from_pbuf, which illegally modified the given pbuf. + + 2007-07-25 Simon Goldschmidt + * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs: + changed snd_queuelen++ to snd_queuelen += pbuf_clen(p). + + 2007-07-24 Simon Goldschmidt + * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the + correct state (must be CLOSED). + + 2007-07-13 Thomas Taranowski (commited by Jared Grubb) + * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed + allocation. It now returns NULL. + + 2007-07-13 Frédéric Bernon + * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in + all error cases. + + 2007-07-13 Frédéric Bernon + * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed, + because current code doesn't follow rawapi.txt documentation. + + 2007-07-13 Kieran Mansley + * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in + out of sequence processing of received packets + + 2007-07-03 Simon Goldschmidt + * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an + assumption is made that this pbuf is in one piece (i.e. not chained). These + assumptions clash with the possibility of converting to fully pool-based + pbuf implementations, where PBUF_RAM pbufs might be chained. + + 2007-07-03 Simon Goldschmidt + * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems + when closing tcp netconns: removed conn->sem, less context switches when + closing, both netconn_close and netconn_delete should safely close tcp + connections. + + 2007-07-02 Simon Goldschmidt + * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c, + tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off) + to cache ARP table indices with each pcb instead of single-entry cache for + the complete stack. + + 2007-07-02 Simon Goldschmidt + * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent + warnings when assigning to smaller types. + + 2007-06-28 Simon Goldschmidt + * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing. + + 2007-06-28 Simon Goldschmidt + * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if + a segment contained chained pbufs) + + 2007-06-28 Frédéric Bernon + * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute + a "pseudo-random" value based on netif's MAC and some autoip fields. It's always + possible to define this macro in your own lwipopts.h to always use C library's + rand(). Note that autoip_create_rand_addr doesn't use this macro. + + 2007-06-28 Frédéric Bernon + * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option + LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications + in api_lib/api_msg (use pointers and not type with table, etc...) + + 2007-06-26 Simon Goldschmidt + * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines. + + 2007-06-25 Simon Goldschmidt + * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload + for udp packets with no matching pcb. + + 2007-06-25 Simon Goldschmidt + * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match + could get udp input packets if the remote side matched. + + 2007-06-13 Simon Goldschmidt + * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get + changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0. + + 2007-06-13 Simon Goldschmidt + * api_msg.c: pcb_new sets conn->err if protocol is not implemented + -> netconn_new_..() does not allocate a new connection for unsupported + protocols. + + 2007-06-13 Frédéric Bernon, Simon Goldschmidt + * api_lib.c: change return expression in netconn_addr and netconn_peer, because + conn->err was reset to ERR_OK without any reasons (and error was lost)... + + 2007-06-13 Frédéric Bernon, Matthias Weisser + * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename + MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid + some macro names collision with some OS macros. + + 2007-06-11 Simon Goldschmidt + * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0, + create checksum over the complete packet. On RX, if it's < 8 (and not 0), + discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both + UDP & UDP Lite. + + 2007-06-11 Srinivas Gollakota & Oleg Tyshev + * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags" + where TCP flags wasn't initialized in tcp_keepalive. + + 2007-06-03 Simon Goldschmidt + * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function + registered, p->payload was modified without modifying p->len if sending + icmp_dest_unreach() (had no negative effect but was definitively wrong). + + 2007-06-03 Simon Goldschmidt + * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp + re-used the input pbuf even if that didn't have enough space to include the + link headers. Now the space is tested and a new pbuf is allocated for the + echo response packet if the echo request pbuf isn't big enough. + + 2007-06-01 Simon Goldschmidt + * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread. + + 2007-05-23 Frédéric Bernon + * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only + allocated by do_listen if success) and netconn_accept errors handling. In + most of api_lib functions, we replace some errors checkings like "if (conn==NULL)" + by ASSERT, except for netconn_delete. + + 2007-05-23 Frédéric Bernon + * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return + an error code if it's impossible to fetch a pbuf on a TCP connection (and not + directly close the recvmbox). + + 2007-05-22 Simon Goldschmidt + * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of + bound but unconnected (and non-listening) tcp_pcbs. + + 2007-05-22 Frédéric Bernon + * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only + used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of + sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features + like "sys_timeout" in their application threads. + + 2007-05-22 Frédéric Bernon + * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see + which parameters are used by which do_xxx function, and to avoid "misusing" + parameters (patch #5938). + + 2007-05-22 Simon Goldschmidt + * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938: + changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto + is only 8 bits wide. This affects the api, as there, the protocol was + u16_t, too. + + 2007-05-18 Simon Goldschmidt + * memp.c: addition to patch #5913: smaller pointer was returned but + memp_memory was the same size -> did not save memory. + + 2007-05-16 Simon Goldschmidt + * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns + != ERR_OK. + + 2007-05-16 Simon Goldschmidt + * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same + as the one of the netif used for sending to prevent sending from old + addresses after a netif address gets changed (partly fixes bug #3168). + + 2007-05-16 Frédéric Bernon + * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work + with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in + tcpip_init) because we have to be sure that network interfaces are already + added (mac filter is updated only in igmp_init for the moment). + + 2007-05-16 Simon Goldschmidt + * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls + into sys_arch_sem_wait calls to prevent timers from running while waiting + for the heap. This fixes bug #19167. + + 2007-05-13 Simon Goldschmidt + * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines + for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from + tcp.h to sockets.h. + + 2007-05-07 Simon Goldschmidt + * mem.c: Another attempt to fix bug #17922. + + 2007-05-04 Simon Goldschmidt + * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy() + implementation so that it can be reused (don't allocate the target + pbuf inside pbuf_copy()). + + 2007-05-04 Simon Goldschmidt + * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem + to save a little RAM (next pointer of memp is not used while not in pool). + + 2007-05-03 "maq" + * sockets.c: Fix ioctl FIONREAD when some data remains from last recv. + (patch #3574). + + 2007-04-23 Simon Goldschmidt + * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results + in NULL reference for incoming TCP packets". Loopif has to be configured + (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input() + (multithreading environments, e.g. netif->input() = tcpip_input()) or + putting packets on a list that is fed to the stack by calling loopif_poll() + (single-thread / NO_SYS / polling environment where e.g. + netif->input() = ip_input). + + 2007-04-17 Jonathan Larmour + * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold + the difference between two u16_t's. + * sockets.h: FD_SETSIZE needs to match number of sockets, which is + MEMP_NUM_NETCONN in sockets.c right now. + + 2007-04-12 Jonathan Larmour + * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580). + + 2007-04-12 Kieran Mansley + * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission + timer is reset to fix bug#19434, with help from Oleg Tyshev. + + 2007-04-11 Simon Goldschmidt + * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than + previously thought need to be copied (everything but PBUF_ROM!). Cleaned up + pbuf.c: removed functions no needed any more (by etharp). + + 2007-04-11 Kieran Mansley + * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix + "Constant is long" warnings with 16bit compilers. Contributed by + avatar@mmlab.cse.yzu.edu.tw + + 2007-04-05 Frédéric Bernon, Jonathan Larmour + * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on + the mailbox is active". Now, the post is only done during a connect, and do_send, + do_write and do_join_leave_group don't do anything if a previous error was signaled. + + 2007-04-03 Frédéric Bernon + * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output + packets. See patch #5834. + + 2007-03-30 Frédéric Bernon + * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add + missing pcb allocations checking (in do_bind, and for each raw_new). Fix style. + + 2007-03-30 Frédéric Bernon + * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with + others environment defines (these were too "generic"). + + 2007-03-28 Frédéric Bernon + * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call + result and can cause a crash. lwip_send now check netbuf_ref result. + + 2007-03-28 Simon Goldschmidt + * sockets.c Remove "#include " from sockets.c to avoid multiple + definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is + defined. This is the way it should have been already (looking at + doc/sys_arch.txt) + + 2007-03-28 Kieran Mansley + * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS + + IP and TCP headers *and* physical link headers + + 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov) + * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause + to send some garbage. It is not a definitive solution, but the patch does solve + the problem for most cases. + + 2007-03-22 Frédéric Bernon + * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used). + + 2007-03-22 Frédéric Bernon + * api_lib.c: somes resources couldn't be freed if there was errors during + netconn_new_with_proto_and_callback. + + 2007-03-22 Frédéric Bernon + * ethernetif.c: update netif->input calls to check return value. In older ports, + it's a good idea to upgrade them, even if before, there could be another problem + (access to an uninitialized mailbox). + + 2007-03-21 Simon Goldschmidt + * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed + by casting to unsigned). + + 2007-03-21 Frédéric Bernon + * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from + api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a + dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call. + Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a + faster and more reliable communication between api_lib and tcpip. + + 2007-03-21 Frédéric Bernon + * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0. + + 2007-03-21 Frédéric Bernon + * api_msg.c, igmp.c, igmp.h: Fix C++ style comments + + 2007-03-21 Kieran Mansley + * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS + + IP and TCP headers + + 2007-03-21 Kieran Mansley + * Fix all uses of pbuf_header to check the return value. In some + cases just assert if it fails as I'm not sure how to fix them, but + this is no worse than before when they would carry on regardless + of the failure. + + 2007-03-21 Kieran Mansley + * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and + comment out missing header include in icmp.c + + 2007-03-20 Frédéric Bernon + * memp.h, stats.c: Fix stats_display function where memp_names table wasn't + synchronized with memp.h. + + 2007-03-20 Frédéric Bernon + * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input, + tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with + network interfaces. Also fix a compiler warning. + + 2007-03-20 Kieran Mansley + * udp.c: Only try and use pbuf_header() to make space for headers if + not a ROM or REF pbuf. + + 2007-03-19 Frédéric Bernon + * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg() + and api_msg_post(). + + 2007-03-19 Frédéric Bernon + * Remove unimplemented "memp_realloc" function from memp.h. + + 2007-03-11 Simon Goldschmidt + * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused + memory corruption. + + 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov) + * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251 + (missing `const' qualifier in socket functions), to get more compatible to + standard POSIX sockets. + + 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov) + * sockets.c: Add asserts inside bind, connect and sendto to check input + parameters. Remove excessive set_errno() calls after get_socket(), because + errno is set inside of get_socket(). Move last sock_set_errno() inside + lwip_close. + + 2007-03-09 Simon Goldschmidt + * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory + was allocated too small. + + 2007-03-06 Simon Goldschmidt + * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect + the stack from concurrent access. + + 2007-03-06 Frédéric Bernon, Dmitry Potapov + * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy + call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input(). + + 2007-03-06 Simon Goldschmidt + * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files + if IP_FRAG == 0 and IP_REASSEMBLY == 0 + + 2007-03-06 Frédéric Bernon, Simon Goldschmidt + * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration + option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput. + Allow to do ARP processing for incoming packets inside tcpip_thread + (protecting ARP layer against concurrent access). You can also disable + old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0. + Older ports have to use tcpip_ethinput. + + 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov) + * err.h, err.c: fixed compiler warning "initialization dircards qualifiers + from pointer target type" + + 2007-03-05 Frédéric Bernon + * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES, + ETHARP_TRUST_IP_MAC, review SO_REUSE) + + 2007-03-04 Frédéric Bernon + * api_msg.c: Remove some compiler warnings : parameter "pcb" was never + referenced. + + 2007-03-04 Frédéric Bernon + * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from + Dmitry Potapov). + The api_msg struct stay on the stack (not moved to netconn struct). + + 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov) + * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if + SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available) + Also fixed cast warning in pbuf_alloc() + + 2007-03-04 Simon Goldschmidt + * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt + existing pbuf chain when enqueuing multiple pbufs to a pending ARP request + + 2007-03-03 Frédéric Bernon + * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;" + It is static, and never used in udp.c except udp_init(). + + 2007-03-02 Simon Goldschmidt + * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from + tcpip_thread() to tcpip_init(). This way, raw API connections can be + initialized before tcpip_thread is running (e.g. before OS is started) + + 2007-03-02 Frédéric Bernon + * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call + interval. + + 2007-02-28 Kieran Mansley + * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved + outside the region of the pbuf by pbuf_header() + + 2007-02-28 Kieran Mansley + * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero + when supplied timeout is also non-zero + +(STABLE-1.2.0) + + 2006-12-05 Leon Woestenberg + * CHANGELOG: Mention STABLE-1.2.0 release. + + ++ New features: + + 2006-12-01 Christiaan Simons + * mem.h, opt.h: Added MEM_LIBC_MALLOC option. + Note this is a workaround. Currently I have no other options left. + + 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour) + * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define + to include/lwip/opt.h. + * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL. + Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h. + * opt.h: Add above new options. + + 2006-08-18 Christiaan Simons + * tcp_{in,out}.c: added SNMP counters. + * ipv4/ip.c: added SNMP counters. + * ipv4/ip_frag.c: added SNMP counters. + + 2006-08-08 Christiaan Simons + * etharp.{c,h}: added etharp_find_addr() to read + (stable) ethernet/IP address pair from ARP table + + 2006-07-14 Christiaan Simons + * mib_structs.c: added + * include/lwip/snmp_structs.h: added + * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct + + 2006-07-06 Christiaan Simons + * snmp/asn1_{enc,dec}.c added + * snmp/mib2.c added + * snmp/msg_{in,out}.c added + * include/lwip/snmp_asn1.h added + * include/lwip/snmp_msg.h added + * doc/snmp_agent.txt added + + 2006-03-29 Christiaan Simons + * inet.c, inet.h: Added platform byteswap support. + Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and + optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros. + + ++ Bug fixes: + + 2006-11-30 Christiaan Simons + * dhcp.c: Fixed false triggers of request_timeout. + + 2006-11-28 Christiaan Simons + * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags. + + 2006-10-11 Christiaan Simons + * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h: + Partially accepted patch #5449 for ANSI C compatibility / build fixes. + * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol + identifier from 170 to 136 (bug #17574). + + 2006-10-10 Christiaan Simons + * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice. + + 2006-08-17 Christiaan Simons + * udp.c: Fixed bug #17200, added check for broadcast + destinations for PCBs bound to a unicast address. + + 2006-08-07 Christiaan Simons + * api_msg.c: Flushing TCP output in do_close() (bug #15926). + + 2006-06-27 Christiaan Simons + * api_msg.c: Applied patch for cold case (bug #11135). + In accept_function() ensure newconn->callback is always initialized. + + 2006-06-15 Christiaan Simons + * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748), + facilitate printing of mem_size_t and u16_t statistics. + + 2006-06-14 Christiaan Simons + * api_msg.c: Applied patch #5146 to handle allocation failures + in accept() by Kevin Lawson. + + 2006-05-26 Christiaan Simons + * api_lib.c: Removed conn->sem creation and destruction + from netconn_write() and added sys_sem_new to netconn_new_*. + +(STABLE-1_1_1) + + 2006-03-03 Christiaan Simons + * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap + access and added pbuf_alloc() return value checks. + + 2006-01-01 Leon Woestenberg + * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is + now handled by the checksum routine properly. + + 2006-02-27 Leon Woestenberg + * pbuf.c: Fix alignment; pbuf_init() would not work unless + pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.) + + 2005-12-20 Leon Woestenberg + * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch + submitted by Mitrani Hiroshi. + + 2005-12-15 Christiaan Simons + * inet.c: Disabled the added summing routine to preserve code space. + + 2005-12-14 Leon Woestenberg + * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson. + Added Curt McDowell's optimized checksumming routine for future + inclusion. Need to create test case for unaliged, aligned, odd, + even length combination of cases on various endianess machines. + + 2005-12-09 Christiaan Simons + * inet.c: Rewrote standard checksum routine in proper portable C. + + 2005-11-25 Christiaan Simons + * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only. + * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t, + u32_t, s32_t typedefs. This solves most debug word-length assumes. + + 2005-07-17 Leon Woestenberg + * inet.c: Fixed unaligned 16-bit access in the standard checksum + routine by Peter Jolasson. + * slipif.c: Fixed implementation assumption of single-pbuf datagrams. + + 2005-02-04 Leon Woestenberg + * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch. + * tcp_{out|in}.c: Applied patch fixing unaligned access. + + 2005-01-04 Leon Woestenberg + * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement. + + 2005-01-03 Leon Woestenberg + * udp.c: UDP pcb->recv() was called even when it was NULL. + +(STABLE-1_1_0) + + 2004-12-28 Leon Woestenberg + * etharp.*: Disabled multiple packets on the ARP queue. + This clashes with TCP queueing. + + 2004-11-28 Leon Woestenberg + * etharp.*: Fixed race condition from ARP request to ARP timeout. + Halved the ARP period, doubled the period counts. + ETHARP_MAX_PENDING now should be at least 2. This prevents + the counter from reaching 0 right away (which would allow + too little time for ARP responses to be received). + + 2004-11-25 Leon Woestenberg + * dhcp.c: Decline messages were not multicast but unicast. + * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD. + Do not try hard to insert arbitrary packet's source address, + etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD. + etharp_query() now always DOES call ETHARP_TRY_HARD so that users + querying an address will see it appear in the cache (DHCP could + suffer from this when a server invalidly gave an in-use address.) + * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are + comparing network addresses (identifiers), not the network masks + themselves. + * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given + IP address actually belongs to the network of the given interface. + + 2004-11-24 Kieran Mansley + * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state. + +(STABLE-1_1_0-RC1) + + 2004-10-16 Kieran Mansley + * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately, + even if one is already pending, if the rcv_wnd is above a threshold + (currently TCP_WND/2). This avoids waiting for a timer to expire to send a + delayed ACK in order to open the window if the stack is only receiving data. + + 2004-09-12 Kieran Mansley + * tcp*.*: Retransmit time-out handling improvement by Sam Jansen. + + 2004-08-20 Tony Mountifield + * etharp.c: Make sure the first pbuf queued on an ARP entry + is properly ref counted. + + 2004-07-27 Tony Mountifield + * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler + warnings about comparison. + * pbuf.c: Stopped compiler complaining of empty if statement + when LWIP_DEBUGF() empty. Closed an unclosed comment. + * tcp.c: Stopped compiler complaining of empty if statement + when LWIP_DEBUGF() empty. + * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons(). + * inet.c: Added a couple of casts to quiet the compiler. + No need to test isascii(c) before isdigit(c) or isxdigit(c). + + 2004-07-22 Tony Mountifield + * inet.c: Made data types consistent in inet_ntoa(). + Added casts for return values of checksum routines, to pacify compiler. + * ip_frag.c, tcp_out.c, sockets.c, pbuf.c + Small corrections to some debugging statements, to pacify compiler. + + 2004-07-21 Tony Mountifield + * etharp.c: Removed spurious semicolon and added missing end-of-comment. + * ethernetif.c Updated low_level_output() to match prototype for + netif->linkoutput and changed low_level_input() similarly for consistency. + * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype + of raw_recv() in raw.h and so avoid compiler error. + * sockets.c: Added trivial (int) cast to keep compiler happier. + * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros. + +(STABLE-1_0_0) + + ++ Changes: + + 2004-07-05 Leon Woestenberg + * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure + your cc.h file defines this either 1 or 0. If non-defined, + defaults to 1. + * .c: Added and includes where used. + * etharp.c: Made some array indices unsigned. + + 2004-06-27 Leon Woestenberg + * netif.*: Added netif_set_up()/down(). + * dhcp.c: Changes to restart program flow. + + 2004-05-07 Leon Woestenberg + * etharp.c: In find_entry(), instead of a list traversal per candidate, do a + single-pass lookup for different candidates. Should exploit locality. + + 2004-04-29 Leon Woestenberg + * tcp*.c: Cleaned up source comment documentation for Doxygen processing. + * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC. + * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by + the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option. + + ++ Bug fixes: + + 2004-04-27 Leon Woestenberg + * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution + suggested by Timmy Brolin. Fix for 32-bit processors that cannot access + non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix + is to prefix the 14-bit Ethernet headers with two padding bytes. + + 2004-04-23 Leon Woestenberg + * ip_addr.c: Fix in the ip_addr_isbroadcast() check. + * etharp.c: Fixed the case where the packet that initiates the ARP request + is not queued, and gets lost. Fixed the case where the packets destination + address is already known; we now always queue the packet and perform an ARP + request. + +(STABLE-0_7_0) + + ++ Bug fixes: + + * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition. + * Fixed TCP bug in dequeueing of FIN from out of order segment queue. + * Fixed two possible NULL references in rare cases. + +(STABLE-0_6_6) + + ++ Bug fixes: + + * Fixed DHCP which did not include the IP address in DECLINE messages. + + ++ Changes: + + * etharp.c has been hauled over a bit. + +(STABLE-0_6_5) + + ++ Bug fixes: + + * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic. + * Packets sent from ARP queue had invalid source hardware address. + + ++ Changes: + + * Pass-by ARP requests do now update the cache. + + ++ New features: + + * No longer dependent on ctype.h. + * New socket options. + * Raw IP pcb support. + +(STABLE-0_6_4) + + ++ Bug fixes: + + * Some debug formatters and casts fixed. + * Numereous fixes in PPP. + + ++ Changes: + + * DEBUGF now is LWIP_DEBUGF + * pbuf_dechain() has been re-enabled. + * Mentioned the changed use of CVS branches in README. + +(STABLE-0_6_3) + + ++ Bug fixes: + + * Fixed pool pbuf memory leak in pbuf_alloc(). + Occured if not enough PBUF_POOL pbufs for a packet pbuf chain. + Reported by Savin Zlobec. + + * PBUF_POOL chains had their tot_len field not set for non-first + pbufs. Fixed in pbuf_alloc(). + + ++ New features: + + * Added PPP stack contributed by Marc Boucher + + ++ Changes: + + * Now drops short packets for ICMP/UDP/TCP protocols. More robust. + + * ARP queueuing now queues the latest packet instead of the first. + This is the RFC recommended behaviour, but can be overridden in + lwipopts.h. + +(0.6.2) + + ++ Bugfixes: + + * TCP has been fixed to deal with the new use of the pbuf->ref + counter. + + * DHCP dhcp_inform() crash bug fixed. + + ++ Changes: + + * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed + pbuf_refresh(). This has sped up pbuf pool operations considerably. + Implemented by David Haas. + +(0.6.1) + + ++ New features: + + * The packet buffer implementation has been enhanced to support + zero-copy and copy-on-demand for packet buffers which have their + payloads in application-managed memory. + Implemented by David Haas. + + Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy + if an outgoing packet can be directly sent on the link, or perform + a copy-on-demand when necessary. + + The application can safely assume the packet is sent, and the RAM + is available to the application directly after calling udp_send() + or similar function. + + ++ Bugfixes: + + * ARP_QUEUEING should now correctly work for all cases, including + PBUF_REF. + Implemented by Leon Woestenberg. + + ++ Changes: + + * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer + to a '0.0.0.0' IP address. + + * The packet buffer implementation is changed. The pbuf->ref counter + meaning has changed, and several pbuf functions have been + adapted accordingly. + + * netif drivers have to be changed to set the hardware address length field + that must be initialized correctly by the driver (hint: 6 for Ethernet MAC). + See the contrib/ports/c16x cs8900 driver as a driver example. + + * netif's have a dhcp field that must be initialized to NULL by the driver. + See the contrib/ports/c16x cs8900 driver as a driver example. + +(0.5.x) This file has been unmaintained up to 0.6.1. All changes are + logged in CVS but have not been explained here. + +(0.5.3) Changes since version 0.5.2 + + ++ Bugfixes: + + * memp_malloc(MEMP_API_MSG) could fail with multiple application + threads because it wasn't protected by semaphores. + + ++ Other changes: + + * struct ip_addr now packed. + + * The name of the time variable in arp.c has been changed to ctime + to avoid conflicts with the time() function. + +(0.5.2) Changes since version 0.5.1 + + ++ New features: + + * A new TCP function, tcp_tmr(), now handles both TCP timers. + + ++ Bugfixes: + + * A bug in tcp_parseopt() could cause the stack to hang because of a + malformed TCP option. + + * The address of new connections in the accept() function in the BSD + socket library was not handled correctly. + + * pbuf_dechain() did not update the ->tot_len field of the tail. + + * Aborted TCP connections were not handled correctly in all + situations. + + ++ Other changes: + + * All protocol header structs are now packed. + + * The ->len field in the tcp_seg structure now counts the actual + amount of data, and does not add one for SYN and FIN segments. + +(0.5.1) Changes since version 0.5.0 + + ++ New features: + + * Possible to run as a user process under Linux. + + * Preliminary support for cross platform packed structs. + + * ARP timer now implemented. + + ++ Bugfixes: + + * TCP output queue length was badly initialized when opening + connections. + + * TCP delayed ACKs were not sent correctly. + + * Explicit initialization of BSS segment variables. + + * read() in BSD socket library could drop data. + + * Problems with memory alignment. + + * Situations when all TCP buffers were used could lead to + starvation. + + * TCP MSS option wasn't parsed correctly. + + * Problems with UDP checksum calculation. + + * IP multicast address tests had endianess problems. + + * ARP requests had wrong destination hardware address. + + ++ Other changes: + + * struct eth_addr changed from u16_t[3] array to u8_t[6]. + + * A ->linkoutput() member was added to struct netif. + + * TCP and UDP ->dest_* struct members where changed to ->remote_*. + + * ntoh* macros are now null definitions for big endian CPUs. + +(0.5.0) Changes since version 0.4.2 + + ++ New features: + + * Redesigned operating system emulation layer to make porting easier. + + * Better control over TCP output buffers. + + * Documenation added. + + ++ Bugfixes: + + * Locking issues in buffer management. + + * Bugfixes in the sequential API. + + * IP forwarding could cause memory leakage. This has been fixed. + + ++ Other changes: + + * Directory structure somewhat changed; the core/ tree has been + collapsed. + +(0.4.2) Changes since version 0.4.1 + + ++ New features: + + * Experimental ARP implementation added. + + * Skeleton Ethernet driver added. + + * Experimental BSD socket API library added. + + ++ Bugfixes: + + * In very intense situations, memory leakage could occur. This has + been fixed. + + ++ Other changes: + + * Variables named "data" and "code" have been renamed in order to + avoid name conflicts in certain compilers. + + * Variable++ have in appliciable cases been translated to ++variable + since some compilers generate better code in the latter case. + +(0.4.1) Changes since version 0.4 + + ++ New features: + + * TCP: Connection attempts time out earlier than data + transmissions. Nagle algorithm implemented. Push flag set on the + last segment in a burst. + + * UDP: experimental support for UDP-Lite extensions. + + ++ Bugfixes: + + * TCP: out of order segments were in some cases handled incorrectly, + and this has now been fixed. Delayed acknowledgements was broken + in 0.4, has now been fixed. Binding to an address that is in use + now results in an error. Reset connections sometimes hung an + application; this has been fixed. + + * Checksum calculation sometimes failed for chained pbufs with odd + lengths. This has been fixed. + + * API: a lot of bug fixes in the API. The UDP API has been improved + and tested. Error reporting and handling has been + improved. Logical flaws and race conditions for incoming TCP + connections has been found and removed. + + * Memory manager: alignment issues. Reallocating memory sometimes + failed, this has been fixed. + + * Generic library: bcopy was flawed and has been fixed. + + ++ Other changes: + + * API: all datatypes has been changed from generic ones such as + ints, to specified ones such as u16_t. Functions that return + errors now have the correct type (err_t). + + * General: A lot of code cleaned up and debugging code removed. Many + portability issues have been fixed. + + * The license was changed; the advertising clause was removed. + + * C64 port added. + + * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri + Kosunen, Mikael Caleres, and Frits Wilmink for reporting and + fixing bugs! + +(0.4) Changes since version 0.3.1 + + * Memory management has been radically changed; instead of + allocating memory from a shared heap, memory for objects that are + rapidly allocated and deallocated is now kept in pools. Allocation + and deallocation from those memory pools is very fast. The shared + heap is still present but is used less frequently. + + * The memory, memory pool, and packet buffer subsystems now support + 4-, 2-, or 1-byte alignment. + + * "Out of memory" situations are handled in a more robust way. + + * Stack usage has been reduced. + + * Easier configuration of lwIP parameters such as memory usage, + TTLs, statistics gathering, etc. All configuration parameters are + now kept in a single header file "lwipopts.h". + + * The directory structure has been changed slightly so that all + architecture specific files are kept under the src/arch + hierarchy. + + * Error propagation has been improved, both in the protocol modules + and in the API. + + * The code for the RTXC architecture has been implemented, tested + and put to use. + + * Bugs have been found and corrected in the TCP, UDP, IP, API, and + the Internet checksum modules. + + * Bugs related to porting between a 32-bit and a 16-bit architecture + have been found and corrected. + + * The license has been changed slightly to conform more with the + original BSD license, including the advertisement clause. + +(0.3.1) Changes since version 0.3 + + * Fix of a fatal bug in the buffer management. Pbufs with allocated + RAM never returned the RAM when the pbuf was deallocated. + + * TCP congestion control, window updates and retransmissions did not + work correctly. This has now been fixed. + + * Bugfixes in the API. + +(0.3) Changes since version 0.2 + + * New and improved directory structure. All include files are now + kept in a dedicated include/ directory. + + * The API now has proper error handling. A new function, + netconn_err(), now returns an error code for the connection in + case of errors. + + * Improvements in the memory management subsystem. The system now + keeps a pointer to the lowest free memory block. A new function, + mem_malloc2() tries to allocate memory once, and if it fails tries + to free some memory and retry the allocation. + + * Much testing has been done with limited memory + configurations. lwIP now does a better job when overloaded. + + * Some bugfixes and improvements to the buffer (pbuf) subsystem. + + * Many bugfixes in the TCP code: + + - Fixed a bug in tcp_close(). + + - The TCP receive window was incorrectly closed when out of + sequence segments was received. This has been fixed. + + - Connections are now timed-out of the FIN-WAIT-2 state. + + - The initial congestion window could in some cases be too + large. This has been fixed. + + - The retransmission queue could in some cases be screwed up. This + has been fixed. + + - TCP RST flag now handled correctly. + + - Out of sequence data was in some cases never delivered to the + application. This has been fixed. + + - Retransmitted segments now contain the correct acknowledgment + number and advertised window. + + - TCP retransmission timeout backoffs are not correctly computed + (ala BSD). After a number of retransmissions, TCP now gives up + the connection. + + * TCP connections now are kept on three lists, one for active + connections, one for listening connections, and one for + connections that are in TIME-WAIT. This greatly speeds up the fast + timeout processing for sending delayed ACKs. + + * TCP now provides proper feedback to the application when a + connection has been successfully set up. + + * More comments have been added to the code. The code has also been + somewhat cleaned up. + +(0.2) Initial public release. diff --git a/middleware/lwip/CMakeLists.txt b/middleware/lwip/CMakeLists.txt new file mode 100644 index 0000000..55fc44a --- /dev/null +++ b/middleware/lwip/CMakeLists.txt @@ -0,0 +1,35 @@ +cmake_minimum_required(VERSION 3.10) + +set (CMAKE_CONFIGURATION_TYPES "Debug;Release") + +project(lwIP) + +# Example lwIP application +set(LWIP_DIR ${CMAKE_CURRENT_SOURCE_DIR}) + +set (LWIP_DEFINITIONS LWIP_DEBUG=1) + +if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows") + add_subdirectory(${LWIP_DIR}/contrib/ports/win32/example_app) +elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Linux" OR ${CMAKE_SYSTEM_NAME} STREQUAL "Darwin") + add_subdirectory(${LWIP_DIR}/contrib/ports/unix/example_app) +else() + message(WARNING "Host ${CMAKE_SYSTEM_NAME} is not supported to build example_app") +endif() + +# Source package generation +set(CPACK_SOURCE_GENERATOR "ZIP") +set(CPACK_SOURCE_PACKAGE_DESCRIPTION_SUMMARY "lwIP lightweight IP stack") +set(CPACK_PACKAGE_VERSION_MAJOR "${LWIP_VERSION_MAJOR}") +set(CPACK_PACKAGE_VERSION_MINOR "${LWIP_VERSION_MINOR}") +set(CPACK_PACKAGE_VERSION_PATCH "${LWIP_VERSION_REVISION}") +set(CPACK_SOURCE_IGNORE_FILES "/build/;${CPACK_SOURCE_IGNORE_FILES};.git") +set(CPACK_SOURCE_PACKAGE_FILE_NAME "lwip-${LWIP_VERSION_MAJOR}.${LWIP_VERSION_MINOR}.${LWIP_VERSION_REVISION}") +include(CPack) + +# Generate docs before creating source package +include(src/Filelists.cmake) +add_custom_target(dist COMMAND ${CMAKE_MAKE_PROGRAM} package_source) +if (TARGET lwipdocs) + add_dependencies(dist lwipdocs) +endif() diff --git a/middleware/lwip/COPYING b/middleware/lwip/COPYING new file mode 100644 index 0000000..e23898b --- /dev/null +++ b/middleware/lwip/COPYING @@ -0,0 +1,33 @@ +/* + * Copyright (c) 2001, 2002 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + + diff --git a/middleware/lwip/ChangeLogKSDK.txt b/middleware/lwip/ChangeLogKSDK.txt new file mode 100644 index 0000000..f8a77df --- /dev/null +++ b/middleware/lwip/ChangeLogKSDK.txt @@ -0,0 +1,96 @@ +/*! +@page middleware_log Middleware Change Log + +@section lwip lwIP for MCUXpresso SDK + The current version of lwIP is based on lwIP 2.2.0.dev. + + - 2.2.0_rev3 + - New features: + - Ported lwIP 2.2.0.dev (2020-07-07, branch: master, SHA-1: c385f31076b27efb8ee37f00cb5568783a58f299) to KSDK 2.0.0. + + - 2.2.0_rev2 + - New features: + - Kinetis ENET adaptation layer - implemented zero-copy on receive. + - lwiperf - counter of transferred bytes extended from 32 to 64 bit + - Bug fixes: + - Fixed restarting Auto IP from DHCP. + + - 2.2.0_rev1 + - New features: + - Ported lwIP 2.2.0.dev (2019-12-12, branch: master, SHA-1: 555812dcec38c9a2ef1ef9b31816291549fbf9f8) to KSDK 2.0.0. + - Implemented LWIP_ASSERT_CORE_LOCKED related functions in sys_arch.c. It can be enabled in lwipopts.h: + - \#define LWIP_ASSERT_CORE_LOCKED() sys_check_core_locking() + - \#define LWIP_MARK_TCPIP_THREAD() sys_mark_tcpip_thread() // if NO_SYS == 0 + - \#define LOCK_TCPIP_CORE() sys_lock_tcpip_core() // if NO_SYS == 0 and LWIP_TCPIP_CORE_LOCKING == 1 + - \#define UNLOCK_TCPIP_CORE() sys_unlock_tcpip_core() // if NO_SYS == 0 and LWIP_TCPIP_CORE_LOCKING == 1 + + - 2.1.2_rev5 + - New features: + - Implemented TCP_USER_TIMEOUT socket option. + - Implemented SIOCOUTQ ioctl. + + - 2.1.2_rev4 + - New features: + - Ported lwIP 2.1.3.dev (2019-02-27, branch: STABLE-2_1_x, SHA-1: 1bb6e7f52de1cd86be0eed31e348431edc2cd01e) to KSDK 2.0.0. + - Updated sys_thread_new implementation and comment. + - Kinetis ENET adaptation layer - reading frames into a pbuf chain is conditionally compiled only when a single pbuf from pool + cannot hold maximum frame size (PBUF_POOL_BUFSIZE >= maximum frame size). + Avoiding this code also reduces stack size requirements by about 1.5 kilobytes. + - Bug fixes: + - Fixes in ethernetif_linkoutput() in enet_ethernetif_lpc.c: + - Removed access to possibly freed pbuf. + - Call pbuf_free() when transmit buffers not available. + - When copying pbuf chain, updating the number of necessary transmit buffers to wait for, which can be often smaller in the copy. + - When CGI script is reading POST data by chunks, the loop in httpsrv_read() may cause blocking in receive function waiting for more data at the end of the stream + - HTTPSRV_cgi_read() - added limiting of the last chunk length according to content length to avoid undesired blocking + - Applied AUTOIP patch https://savannah.nongnu.org/patch/?9847 - with modification to support multiple network interfaces. + - Fixed buffer overflow in httpsrv when application provided CGI script does not handle the whole content of POST request + - Removed LwipMibCompiler contrib application as it contained LGPL licensed files in SharpSnmpLib. + + - 2.1.2_rev3 + - New features: + - lwiperf updated with UDP client/server support from the patch 9751 (https://savannah.nongnu.org/patch/?9751) + + - 2.1.2_rev2 + - Bug fixes: + - Fixed lwiperf_abort() in lwiperf.c to correctly close connections and free resources + + - 2.1.2_rev1 + - New features: + - Ported lwIP 2.1.2 (2018-11-22, SHA-1: 159e31b689577dbf69cf0683bbaffbd71fa5ee10) to KSDK 2.0.0. + - Ported lwIP-contrib 2.1.0 (2018-09-24, SHA-1: 35b011d4cf4c4b480f8859c456587a884ec9d287) to KSDK 2.0.0. + + - 2.0.3_rev1 + - New features: + - Ported lwIP 2.0.3 (2017-09-15, SHA-1: 92f23d6ca0971a32f2085b9480e738d34174417b) to KSDK 2.0.0. + + - 2.0.2_rev1 + - New features: + - Ported lwIP 2.0.2 (2017-03-13, SHA-1: c0862d60746e2d1ceae69af4c6f24e469570ecef) to KSDK 2.0.0. + + - 2.0.0_rev3 + - New features: + - Ported lwIP 2.0.0 (2016-11-10, SHA-1: 216bf89491815029aa15463a18744afa04df58fe) to KSDK 2.0.0. + + - 2.0.0_rev2 + - New features: + - Ported lwIP 2.0.0 RC2 (2016-08-08, SHA-1: b1dfd00f9233d124514a36a8c8606990016f2ad4) to KSDK 2.0.0. + + - 2.0.0_rev1 + - New features: + - Ported lwIP 2.0.0 RC0 (2016-05-26) to KSDK 2.0.0. + - Changed lwIP bare-metal examples to use poll-driven approach instead of interrupt-driven one. + + - 1.4.1_rev2 + - New features: + - Enabled critical sections in lwIP. + - Bug fixes: + - Fixed default lwIP packet-buffer size to be able to accept a maximum size frame from the ENET driver. + - Fixed possible drop of multi-frame packets during transmission. + + - 1.4.1_rev1 + - New features: + - Ported lwIP 1.4.1 to KSDK 2.0.0. +*/ + + diff --git a/middleware/lwip/FEATURES b/middleware/lwip/FEATURES new file mode 100644 index 0000000..87802d1 --- /dev/null +++ b/middleware/lwip/FEATURES @@ -0,0 +1,11 @@ +lwIP is a small independent implementation of the TCP/IP protocol suite targeted at embedded systems. + +The focus of the lwIP TCP/IP implementation is to reduce resource usage while still having a full scale TCP. This makes lwIP suitable for use in embedded systems with tens of kilobytes of free RAM and room for around 40 kilobytes of code ROM. + +Main features include: +- Protocols: IP, IPv6, ICMP, ND, MLD, UDP, TCP, IGMP, ARP, PPPoS, PPPoE, 6LowPAN (via IEEE 802.15.4, BLE or ZEP; since v2.1.0) +- DHCP client, stateless DHCPv6 (since v2.1.0), DNS client (incl. mDNS hostname resolver), AutoIP/APIPA (Zeroconf), ACD (Address Conflict Detection), SNMP agent (v1, v2c, v3 (since v2.1.0), private MIB support & MIB compiler) +- APIs: specialized APIs for enhanced performance & zero copy, optional Berkeley-alike socket API +- Extended features: IP forwarding over multiple network interfaces +- Extended TCP features: congestion control, RTT estimation and fast recovery/fast retransmit, sending SACKs (since v2.1.0), "altcp": nearly transparent TLS for any tcp pcb (since v2.1.0) +- Addon applications: HTTP server (HTTPS via altcp), HTTP(S) client (since v2.1.0), SNTP client, SMTP client (SMTPS via altcp), ping, NetBIOS nameserver, mDNS responder, MQTT client (TLS support since v2.1.0), TFTP server, iPerf2 counterpart diff --git a/middleware/lwip/FILES b/middleware/lwip/FILES new file mode 100644 index 0000000..2a7086c --- /dev/null +++ b/middleware/lwip/FILES @@ -0,0 +1,6 @@ +contrib/ - lwIP examples, ports, and small apps (formerly http://git.savannah.gnu.org/cgit/lwip/lwip-contrib.git/) +src/ - The source code for the lwIP TCP/IP stack. +doc/ - The documentation for lwIP. +test/ - Some code to test whether the sources do what they should. + +See also the FILES file in each subdirectory. diff --git a/middleware/lwip/README b/middleware/lwip/README new file mode 100644 index 0000000..09e1a7b --- /dev/null +++ b/middleware/lwip/README @@ -0,0 +1,109 @@ +INTRODUCTION + +lwIP is a small independent implementation of the TCP/IP protocol suite. + +The focus of the lwIP TCP/IP implementation is to reduce the RAM usage +while still having a full scale TCP. This making lwIP suitable for use +in embedded systems with tens of kilobytes of free RAM and room for +around 40 kilobytes of code ROM. + +lwIP was originally developed by Adam Dunkels at the Computer and Networks +Architectures (CNA) lab at the Swedish Institute of Computer Science (SICS) +and is now developed and maintained by a worldwide network of developers. + +FEATURES + + * IP (Internet Protocol, IPv4 and IPv6) including packet forwarding over + multiple network interfaces + * ICMP (Internet Control Message Protocol) for network maintenance and debugging + * IGMP (Internet Group Management Protocol) for multicast traffic management + * MLD (Multicast listener discovery for IPv6). Aims to be compliant with + RFC 2710. No support for MLDv2 + * ND (Neighbor discovery and stateless address autoconfiguration for IPv6). + Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 + (Address autoconfiguration) + * DHCP, AutoIP/APIPA (Zeroconf), ACD (Address Conflict Detection) + and (stateless) DHCPv6 + * UDP (User Datagram Protocol) including experimental UDP-lite extensions + * TCP (Transmission Control Protocol) with congestion control, RTT estimation + fast recovery/fast retransmit and sending SACKs + * raw/native API for enhanced performance + * Optional Berkeley-like socket API + * TLS: optional layered TCP ("altcp") for nearly transparent TLS for any + TCP-based protocol (ported to mbedTLS) (see changelog for more info) + * PPPoS and PPPoE (Point-to-point protocol over Serial/Ethernet) + * DNS (Domain name resolver incl. mDNS) + * 6LoWPAN (via IEEE 802.15.4, BLE or ZEP) + + +APPLICATIONS + + * HTTP server with SSI and CGI (HTTPS via altcp) + * SNMPv2c agent with MIB compiler (Simple Network Management Protocol), v3 via altcp + * SNTP (Simple network time protocol) + * NetBIOS name service responder + * MDNS (Multicast DNS) responder + * iPerf server implementation + * MQTT client (TLS support via altcp) + + +LICENSE + +lwIP is freely available under a BSD license. + + +DEVELOPMENT + +lwIP has grown into an excellent TCP/IP stack for embedded devices, +and developers using the stack often submit bug fixes, improvements, +and additions to the stack to further increase its usefulness. + +Development of lwIP is hosted on Savannah, a central point for +software development, maintenance and distribution. Everyone can +help improve lwIP by use of Savannah's interface, Git and the +mailing list. A core team of developers will commit changes to the +Git source tree. + +The lwIP TCP/IP stack is maintained in the 'src' directory and +contributions (such as platform ports and applications) are in +the 'contrib' directory. + +See doc/savannah.txt for details on Git server access for users and +developers. + +The current Git tree is web-browsable: + https://git.savannah.gnu.org/cgit/lwip.git + +Submit patches and bugs via the lwIP project page: + https://savannah.nongnu.org/projects/lwip/ + +Continuous integration builds (GCC, clang): + https://travis-ci.org/lwip-tcpip/lwip + + +DOCUMENTATION + +Self documentation of the source code is regularly extracted from the current +Git sources and is available from this web page: + https://www.nongnu.org/lwip/ + +Also, there are mailing lists you can subscribe at + https://savannah.nongnu.org/mail/?group=lwip +plus searchable archives: + https://lists.nongnu.org/archive/html/lwip-users/ + https://lists.nongnu.org/archive/html/lwip-devel/ + +There is a wiki about lwIP at + https://lwip.wikia.com/wiki/LwIP_Wiki +You might get questions answered there, but unfortunately, it is not as +well maintained as it should be. + +lwIP was originally written by Adam Dunkels: + http://dunkels.com/adam/ + +Reading Adam's papers, the files in docs/, browsing the source code +documentation and browsing the mailing list archives is a good way to +become familiar with the design of lwIP. + +Adam Dunkels +Leon Woestenberg diff --git a/middleware/lwip/UPGRADING b/middleware/lwip/UPGRADING new file mode 100644 index 0000000..0082412 --- /dev/null +++ b/middleware/lwip/UPGRADING @@ -0,0 +1,280 @@ +This file lists major changes between release versions that require +ports or applications to be changed. Use it to update a port or an +application written for an older version of lwIP to correctly work +with newer versions. + + +(git master) + + * [Enter new changes just after this line - do not remove this line] + * The eth_addr_cmp and ip_addr_cmp set of functions have been renamed to eth_addr_eq, ip_addr_eq + and so on, since they return non-zero on equality. Macros for the old names exist. + +(2.1.0) + + ++ Application changes: + + * Use the new altcp API for seamless TLS integration into existing TCP applications (see changelog) + * TCP only kills existing connections with a LOWER priority than the one currently being opened. + Previous implementations also kill existing connections of the SAME priority. + * ip4_route_src: parameter order is reversed: ip4_route_src(dest, src) -> ip4_route_src(src, dest) + to make parameter order consistent with other ip*_route*() functions. + Same also applies to LWIP_HOOK_IP4_ROUTE_SRC() parameter order. + * pbuf API: pbuf->type (an u8_t holding the enum 'pbuf_type') has changed to only hold a + description of the pbuf (e.g. data following pbuf struct, data volatile, allocation + source heap/pool/etc.). As a consequence, applications can't test pbuf->type any more. + Use pbuf_match_type(pbuf, type) instead. + * socket API: according to the standard, SO_ERROR now only returns asynchronous errors. + All other/normal/synchronous errors are (and always were) available via 'errno'. + LWIP_SOCKET_SET_ERRNO has been removed - 'errno' is always set - and required! + * httpd LWIP_HTTPD_CGI_SSI: httpd_cgi_handler() has an additional parameter "struct fs_file *" + + ++ Port changes: + + * tcpip_trycallback() was renamed to tcpip_callbackmsg_trycallback() to avoid confusion + with tcpip_try_callback() + * compatibility headers: moved from 'src/include/posix' to 'src/include/compat/posix', + 'src/include/compat/stdc' etc. + * The IPv6 implementation now supports address scopes. (See LWIP_IPV6_SCOPES documentation + and ip6_zone.h for more documentation) + * LWIP_HOOK_DHCP_APPEND_OPTIONS() has changed, see description in opt.h (options_out_len is not + available in struct dhcp any more) + * Added debug helper asserts to ensure threading/locking requirements are met (define + LWIP_MARK_TCPIP_THREAD() and LWIP_ASSERT_CORE_LOCKED()). + * Added sys_mbox_trypost_fromisr() and tcpip_callbackmsg_trycallback_fromisr() + These can be used to post preallocated messages from an ISR to the tcpip thread + (e.g. when using FreeRTOS) + +(2.0.2) + + ++ Application changes: + + * slipif: The way to pass serial port number has changed. netif->num is not + supported any more, netif->state is interpreted as an u8_t port number now + (it's not a POINTER to an u8_t any more!) + +(2.0.1) + + ++ Application changes: + + * UDP does NOT receive multicast traffic from ALL netifs on an UDP PCB bound to a specific + netif any more. Users need to bind to IP_ADDR_ANY to receive multicast traffic and compare + ip_current_netif() to the desired netif for every packet. + See bug #49662 for an explanation. + +(2.0.0) + + ++ Application changes: + + * Changed netif "up" flag handling to be an administrative flag (as opposed to the previous meaning of + "ip4-address-valid", a netif will now not be used for transmission if not up) -> even a DHCP netif + has to be set "up" before starting the DHCP client + * Added IPv6 support (dual-stack or IPv4/IPv6 only) + * Changed ip_addr_t to be a union in dual-stack mode (use ip4_addr_t where referring to IPv4 only). + * Major rewrite of SNMP (added MIB parser that creates code stubs for custom MIBs); + supports SNMPv2c (experimental v3 support) + * Moved some core applications from contrib repository to src/apps (and include/lwip/apps) + + +++ Raw API: + * Changed TCP listen backlog: removed tcp_accepted(), added the function pair tcp_backlog_delayed()/ + tcp_backlog_accepted() to explicitly delay backlog handling on a connection pcb + + +++ Socket API: + * Added an implementation for posix sendmsg() + * Added LWIP_FIONREAD_LINUXMODE that makes ioctl/FIONREAD return the size of the next pending datagram + + ++ Port changes + + +++ new files: + * MANY new and moved files! + * Added src/Filelists.mk for use in Makefile projects + * Continued moving stack-internal parts from abc.h to abc_priv.h in sub-folder "priv" + to let abc.h only contain the actual application programmer's API + + +++ sys layer: + * Made LWIP_TCPIP_CORE_LOCKING==1 the default as it usually performs better than + the traditional message passing (although with LWIP_COMPAT_MUTEX you are still + open to priority inversion, so this is not recommended any more) + * Added LWIP_NETCONN_SEM_PER_THREAD to use one "op_completed" semaphore per thread + instead of using one per netconn (these semaphores are used even with core locking + enabled as some longer lasting functions like big writes still need to delay) + * Added generalized abstraction for itoa(), strnicmp(), stricmp() and strnstr() + in def.h (to be overridden in cc.h) instead of config + options for netbiosns, httpd, dns, etc. ... + * New abstraction for hton* and ntoh* functions in def.h. + To override them, use the following in cc.h: + #define lwip_htons(x) + #define lwip_htonl(x) + + +++ new options: + * TODO + + +++ new pools: + * Added LWIP_MEMPOOL_* (declare/init/alloc/free) to declare private memp pools + that share memp.c code but do not have to be made global via lwippools.h + * Added pools for IPv6, MPU_COMPATIBLE, dns-api, netif-api, etc. + * added hook LWIP_HOOK_MEMP_AVAILABLE() to get informed when a memp pool was empty and an item + is now available + + * Signature of LWIP_HOOK_VLAN_SET macro was changed + + * LWIP_DECLARE_MEMORY_ALIGNED() may be used to declare aligned memory buffers (mem/memp) + or to move buffers to dedicated memory using compiler attributes + + * Standard C headers are used to define sized types and printf formatters + (disable by setting LWIP_NO_STDINT_H=1 or LWIP_NO_INTTYPES_H=1 if your compiler + does not support these) + + + ++ Major bugfixes/improvements + + * Added IPv6 support (dual-stack or IPv4/IPv6 only) + * Major rewrite of PPP (incl. keep-up with apache pppd) + see doc/ppp.txt for an upgrading how-to + * Major rewrite of SNMP (incl. MIB parser) + * Fixed timing issues that might have lead to losing a DHCP lease + * Made rx processing path more robust against crafted errors + * TCP window scaling support + * modification of api modules to support FreeRTOS-MPU (don't pass stack-pointers to other threads) + * made DNS client more robust + * support PBUF_REF for RX packets + * LWIP_NETCONN_FULLDUPLEX allows netconn/sockets to be used for reading/writing from separate + threads each (needs LWIP_NETCONN_SEM_PER_THREAD) + * Moved and reordered stats (mainly memp/mib2) + +(1.4.0) + + ++ Application changes: + + * Replaced struct ip_addr by typedef ip_addr_t (struct ip_addr is kept for + compatibility to old applications, but will be removed in the future). + + * Renamed mem_realloc() to mem_trim() to prevent confusion with realloc() + + +++ Raw API: + * Changed the semantics of tcp_close() (since it was rather a + shutdown before): Now the application does *NOT* get any calls to the recv + callback (aside from NULL/closed) after calling tcp_close() + + * When calling tcp_abort() from a raw API TCP callback function, + make sure you return ERR_ABRT to prevent accessing unallocated memory. + (ERR_ABRT now means the applicaiton has called tcp_abort!) + + +++ Netconn API: + * Changed netconn_receive() and netconn_accept() to return + err_t, not a pointer to new data/netconn. + + +++ Socket API: + * LWIP_SO_RCVTIMEO: when accept() or recv() time out, they + now set errno to EWOULDBLOCK/EAGAIN, not ETIMEDOUT. + + * Added a minimal version of posix fctl() to have a + standardised way to set O_NONBLOCK for nonblocking sockets. + + +++ all APIs: + * correctly implemented SO(F)_REUSEADDR + + ++ Port changes + + +++ new files: + + * Added 4 new files: def.c, timers.c, timers.h, tcp_impl.h: + + * Moved stack-internal parts of tcp.h to tcp_impl.h, tcp.h now only contains + the actual application programmer's API + + * Separated timer implementation from sys.h/.c, moved to timers.h/.c; + Added timer implementation for NO_SYS==1, set NO_SYS_NO_TIMERS==1 if you + still want to use your own timer implementation for NO_SYS==0 (as before). + + +++ sys layer: + + * Converted mbox- and semaphore-functions to take pointers to sys_mbox_t/ + sys_sem_t; + + * Converted sys_mbox_new/sys_sem_new to take pointers and return err_t; + + * Added Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX to let sys.h use + binary semaphores instead of mutexes - as before) + + +++ new options: + + * Don't waste memory when chaining segments, added option TCP_OVERSIZE to + prevent creating many small pbufs when calling tcp_write with many small + blocks of data. Instead, pbufs are allocated larger than needed and the + space is used for later calls to tcp_write. + + * Added LWIP_NETIF_TX_SINGLE_PBUF to always copy to try to create single pbufs + in tcp_write/udp_send. + + * Added an additional option LWIP_ETHERNET to support ethernet without ARP + (necessary for pure PPPoE) + + * Add MEMP_SEPARATE_POOLS to place memory pools in separate arrays. This may + be used to place these pools into user-defined memory by using external + declaration. + + * Added TCP_SNDQUEUELOWAT corresponding to TCP_SNDLOWAT + + +++ new pools: + + * Netdb uses a memp pool for allocating memory when getaddrinfo() is called, + so MEMP_NUM_NETDB has to be set accordingly. + + * DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses a memp pool instead of the heap, so + MEMP_NUM_LOCALHOSTLIST has to be set accordingly. + + * Snmp-agent uses a memp pools instead of the heap, so MEMP_NUM_SNMP_* have + to be set accordingly. + + * PPPoE uses a MEMP pool instead of the heap, so MEMP_NUM_PPPOE_INTERFACES + has to be set accordingly + + * Integrated loopif into netif.c - loopif does not have to be created by the + port any more, just define LWIP_HAVE_LOOPIF to 1. + + * Added define LWIP_RAND() for lwip-wide randomization (needs to be defined + in cc.h, e.g. used by igmp) + + * Added printf-formatter X8_F to printf u8_t as hex + + * The heap now may be moved to user-defined memory by defining + LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address + + * added autoip_set_struct() and dhcp_set_struct() to let autoip and dhcp work + with user-allocated structs instead of calling mem_malloc + + * Added const char* name to mem- and memp-stats for easier debugging. + + * Calculate the TCP/UDP checksum while copying to only fetch data once: + Define LWIP_CHKSUM_COPY to a memcpy-like function that returns the checksum + + * Added SO_REUSE_RXTOALL to pass received UDP broadcast/multicast packets to + more than one pcb. + + * Changed the semantics of ARP_QUEUEING==0: ARP_QUEUEING now cannot be turned + off any more, if this is set to 0, only one packet (the most recent one) is + queued (like demanded by RFC 1122). + + + ++ Major bugfixes/improvements + + * Implemented tcp_shutdown() to only shut down one end of a connection + * Implemented shutdown() at socket- and netconn-level + * Added errorset support to select() + improved select speed overhead + * Merged pppd to v2.3.11 (including some backported bugfixes from 2.4.x) + * Added timer implementation for NO_SYS==1 (may be disabled with NO_SYS_NO_TIMERS==1 + * Use macros defined in ip_addr.h to work with IP addresses + * Implemented many nonblocking socket/netconn functions + * Fixed ARP input processing: only add a new entry if a request was directed as us + * mem_realloc() to mem_trim() to prevent confusion with realloc() + * Some improvements for AutoIP (don't route/forward link-local addresses, don't break + existing connections when assigning a routable address) + * Correctly handle remote side overrunning our rcv_wnd in ooseq case + * Removed packing from ip_addr_t, the packed version is now only used in protocol headers + * Corrected PBUF_POOL_BUFSIZE for ports where ETH_PAD_SIZE > 0 + * Added support for static ARP table entries + +(STABLE-1.3.2) + + * initial version of this file diff --git a/middleware/lwip/contrib/Coverity/coverity.c b/middleware/lwip/contrib/Coverity/coverity.c new file mode 100644 index 0000000..99bebae --- /dev/null +++ b/middleware/lwip/contrib/Coverity/coverity.c @@ -0,0 +1,106 @@ +typedef unsigned char err_t; +typedef unsigned int u32_t; +typedef unsigned short u16_t; +typedef unsigned char u8_t; +typedef void sys_sem_t; +typedef void sys_mutex_t; +typedef size_t mem_size_t; +typedef size_t memp_t; +struct pbuf; +struct netif; + +void* mem_malloc(mem_size_t size) +{ + __coverity_alloc__(size); +} +void mem_free(void* mem) +{ + __coverity_free__(mem); +} + +void* memp_malloc(memp_t type) +{ + __coverity_alloc_nosize__(); +} +void memp_free(memp_t type, void* mem) +{ + __coverity_free__(mem); +} + +void sys_mutex_lock(sys_mutex_t* mutex) +{ + __coverity_exclusive_lock_acquire__(mutex); +} +void sys_mutex_unlock(sys_mutex_t* mutex) +{ + __coverity_exclusive_lock_release__(mutex); +} + +u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout) +{ + __coverity_recursive_lock_acquire__(sem); +} +void sys_sem_signal(sys_sem_t *sem) +{ + __coverity_recursive_lock_release__(sem); +} + +err_t ethernet_input(struct pbuf *p, struct netif *inp) +{ + __coverity_tainted_string_sink_content__(p); +} +err_t tcpip_input(struct pbuf *p, struct netif *inp) +{ + __coverity_tainted_string_sink_content__(p); +} +err_t ip_input(struct pbuf *p, struct netif *inp) +{ + __coverity_tainted_string_sink_content__(p); +} +err_t ip4_input(struct pbuf *p, struct netif *inp) +{ + __coverity_tainted_string_sink_content__(p); +} +err_t ip6_input(struct pbuf *p, struct netif *inp) +{ + __coverity_tainted_string_sink_content__(p); +} + +err_t pbuf_take(struct pbuf *buf, const void *dataptr, u16_t len) +{ + __coverity_tainted_string_argument__(buf); + __coverity_tainted_data_argument__(buf); +} +err_t pbuf_take_at(struct pbuf *buf, const void *dataptr, u16_t len, u16_t offset) +{ + __coverity_tainted_string_argument__(buf); + __coverity_tainted_data_argument__(buf); +} +err_t pbuf_copy(struct pbuf *p_to, struct pbuf *p_from) +{ + __coverity_tainted_data_transitive__(p_to, p_from); +} +u16_t pbuf_copy_partial(struct pbuf *p, void *dataptr, u16_t len, u16_t offset) +{ + __coverity_tainted_string_argument__(dataptr); + __coverity_tainted_data_argument__(dataptr); +} +u8_t pbuf_get_at(struct pbuf* p, u16_t offset) +{ + __coverity_tainted_data_return__(); +} + +void abort(void) +{ + __coverity_panic__(); +} + +int check_path(char* path, size_t size) +{ + if (size) { + __coverity_tainted_data_sanitize__(path); + return 1; + } else { + return 0; + } +} diff --git a/middleware/lwip/contrib/Filelists.mk b/middleware/lwip/contrib/Filelists.mk new file mode 100644 index 0000000..f0fb48b --- /dev/null +++ b/middleware/lwip/contrib/Filelists.mk @@ -0,0 +1,57 @@ +# +# Copyright (c) 2001, 2002 Swedish Institute of Computer Science. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT +# SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT +# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY +# OF SUCH DAMAGE. +# +# This file is part of the lwIP TCP/IP stack. +# +# Author: Adam Dunkels +# + +# CONTRIBAPPFILES: Contrib Applications. +CONTRIBAPPFILES=$(CONTRIBDIR)/apps/httpserver/httpserver-netconn.c \ + $(CONTRIBDIR)/apps/chargen/chargen.c \ + $(CONTRIBDIR)/apps/udpecho/udpecho.c \ + $(CONTRIBDIR)/apps/tcpecho/tcpecho.c \ + $(CONTRIBDIR)/apps/shell/shell.c \ + $(CONTRIBDIR)/apps/udpecho_raw/udpecho_raw.c \ + $(CONTRIBDIR)/apps/tcpecho_raw/tcpecho_raw.c \ + $(CONTRIBDIR)/apps/netio/netio.c \ + $(CONTRIBDIR)/apps/ping/ping.c \ + $(CONTRIBDIR)/apps/socket_examples/socket_examples.c \ + $(CONTRIBDIR)/apps/rtp/rtp.c \ + $(CONTRIBDIR)/examples/httpd/fs_example/fs_example.c \ + $(CONTRIBDIR)/examples/httpd/https_example/https_example.c \ + $(CONTRIBDIR)/examples/httpd/ssi_example/ssi_example.c \ + $(CONTRIBDIR)/examples/lwiperf/lwiperf_example.c \ + $(CONTRIBDIR)/examples/mdns/mdns_example.c \ + $(CONTRIBDIR)/examples/mqtt/mqtt_example.c \ + $(CONTRIBDIR)/examples/ppp/pppos_example.c \ + $(CONTRIBDIR)/examples/snmp/snmp_private_mib/lwip_prvmib.c \ + $(CONTRIBDIR)/examples/snmp/snmp_v3/snmpv3_dummy.c \ + $(CONTRIBDIR)/examples/snmp/snmp_example.c \ + $(CONTRIBDIR)/examples/sntp/sntp_example.c \ + $(CONTRIBDIR)/examples/tftp/tftp_example.c \ + $(CONTRIBDIR)/addons/tcp_isn/tcp_isn.c \ + $(CONTRIBDIR)/addons/ipv6_static_routing/ip6_route_table.c diff --git a/middleware/lwip/contrib/addons/ipv6_static_routing/README b/middleware/lwip/contrib/addons/ipv6_static_routing/README new file mode 100644 index 0000000..0c3b06c --- /dev/null +++ b/middleware/lwip/contrib/addons/ipv6_static_routing/README @@ -0,0 +1,43 @@ +A simple routing table implementation for addition, deletion and lookup of IPv6 routes.  + +APIs are: +1) s8_t ip6_add_route_entry(struct ip6_prefix *ip6_prefix, +                            struct netif *netif, +                            ip6_addr_t *gateway, +                            s8_t *index); + +2) err_t ip6_remove_route_entry(struct ip6_prefix *ip6_prefix); + +3) s8_t ip6_find_route_entry(ip6_addr_t *ip6_dest_addr); + +4) struct netif *ip6_static_route(ip6_addr_t *src, ip6_addr_t *dest); + +5) ip6_addr_t *ip6_get_gateway(struct netif *netif, ip6_addr_t *dest); + +6) struct ip6_route_entry *ip6_get_route_table(void); + +For route lookup from the table, The LWIP_HOOK_IP6_ROUTE hook in ip6_route(..) of ip6.c +could be assigned to the ip6_static_route() API of this implementation to return the +appropriate netif. + +-- The application can add routes using the API ip6_add_route_entry(..).  +   This API adds the ip6 prefix route into the static route table while +   keeping all entries sorted in decreasing order of prefix length. +   Subsequently, a linear search down the list can be performed to retrieve a +   matching route entry for a Longest Prefix Match. +   The prefix length is expected to be at an 8-bit boundary. While this is  +   a limitation, it would serve most practical purposes. + +-- The application can remove routes using the API ip6_remove_route_entry(..). + +-- The application can find a route entry for a specific address using the  +   ip6_find_route_entry() function which returns the index of the found entry.  +   This is used internally by the route lookup function ip6_static_route() API. + +-- To fetch the gateway IPv6 address for a specific destination IPv6  +   address and target netif, the application can call ip6_get_gateway(..). + This API could be assigned to the LWIP_HOOK_ND6_GET_GW() if a gateway has + been added as part of the ip6_add_route_entry(). + +-- To fetch a pointer to the head of the table, the application can call  +   ip6_get_route_table(). diff --git a/middleware/lwip/contrib/addons/ipv6_static_routing/ip6_route_table.c b/middleware/lwip/contrib/addons/ipv6_static_routing/ip6_route_table.c new file mode 100644 index 0000000..a92dd33 --- /dev/null +++ b/middleware/lwip/contrib/addons/ipv6_static_routing/ip6_route_table.c @@ -0,0 +1,248 @@ +/** + * @file + * IPv6 static route table. + */ + +/* + * Copyright (c) 2015 Nest Labs, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Pradip De + * + * + * Please coordinate changes and requests with Pradip De + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "ip6_route_table.h" +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/netif.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/nd6.h" +#include "lwip/debug.h" +#include "lwip/stats.h" + +#include "string.h" + +static struct ip6_route_entry static_route_table[LWIP_IPV6_NUM_ROUTE_ENTRIES]; + +/** + * Add the ip6 prefix route and target netif into the static route table while + * keeping all entries sorted in decreasing order of prefix length. + * 1. Search from the last entry up to find the correct slot to insert while + * moving entries one position down to create room. + * 2. Insert into empty slot created. + * + * Subsequently, a linear search down the list can be performed to retrieve a + * matching route entry for a Longest Prefix Match. + * + * @param ip6_prefix the route prefix entry to add. + * @param netif pointer to target netif. + * @param gateway the gateway address to use to send through. Has to be link local. + * @param idx return value argument of index where route entry was added in table. + * @return ERR_OK if addition was successful. + * ERR_MEM if table is already full. + * ERR_ARG if passed argument is bad or route already exists in table. + */ +err_t +ip6_add_route_entry(const struct ip6_prefix *ip6_prefix, struct netif *netif, const ip6_addr_t *gateway, s8_t *idx) +{ + s8_t i = -1; + err_t retval = ERR_OK; + + if (!ip6_prefix_valid(ip6_prefix->prefix_len) || (netif == NULL)) { + retval = ERR_ARG; + goto exit; + } + + /* Check if an entry already exists with matching prefix; If so, replace it. */ + for (i = 0; i < LWIP_IPV6_NUM_ROUTE_ENTRIES; i++) { + if ((ip6_prefix->prefix_len == static_route_table[i].prefix.prefix_len) && + memcmp(&ip6_prefix->addr, &static_route_table[i].prefix.addr, + ip6_prefix->prefix_len / 8) == 0) { + /* Prefix matches; replace the netif with the one being added. */ + goto insert; + } + } + + /* Check if the table is full */ + if (static_route_table[LWIP_IPV6_NUM_ROUTE_ENTRIES - 1].netif != NULL) { + retval = ERR_MEM; + goto exit; + } + + /* Shift all entries down the table until slot is found */ + for (i = LWIP_IPV6_NUM_ROUTE_ENTRIES - 1; + i > 0 && (ip6_prefix->prefix_len > static_route_table[i - 1].prefix.prefix_len); i--) { + SMEMCPY(&static_route_table[i], &static_route_table[i - 1], sizeof(struct ip6_route_entry)); + } + +insert: + /* Insert into the slot selected */ + SMEMCPY(&static_route_table[i].prefix, ip6_prefix, sizeof(struct ip6_prefix)); + static_route_table[i].netif = netif; + + /* Add gateway to route table */ + static_route_table[i].gateway = gateway; + + if (idx != NULL) { + *idx = i; + } + +exit: + return retval; +} + +/** + * Removes the route entry from the static route table. + * + * @param ip6_prefix the route prefix entry to delete. + */ +void +ip6_remove_route_entry(const struct ip6_prefix *ip6_prefix) +{ + int i, pos = -1; + + for (i = 0; i < LWIP_IPV6_NUM_ROUTE_ENTRIES; i++) { + /* compare prefix to find position to delete */ + if (ip6_prefix->prefix_len == static_route_table[i].prefix.prefix_len && + memcmp(&ip6_prefix->addr, &static_route_table[i].prefix.addr, + ip6_prefix->prefix_len / 8) == 0) { + pos = i; + break; + } + } + + if (pos >= 0) { + /* Shift everything beyond pos one slot up */ + for (i = pos; i < LWIP_IPV6_NUM_ROUTE_ENTRIES - 1; i++) { + SMEMCPY(&static_route_table[i], &static_route_table[i+1], sizeof(struct ip6_route_entry)); + if (static_route_table[i].netif == NULL) { + break; + } + } + /* Zero the remaining entries */ + for (; i < LWIP_IPV6_NUM_ROUTE_ENTRIES; i++) { + ip6_addr_set_zero((&static_route_table[i].prefix.addr)); + static_route_table[i].netif = NULL; + } + } +} + +/** + * Finds the appropriate route entry in the static route table corresponding to the given + * destination IPv6 address. Since the entries in the route table are kept sorted in decreasing + * order of prefix length, a linear search down the list is performed to retrieve a matching + * index. + * + * @param ip6_dest_addr the destination address to match + * @return the idx of the found route entry; -1 if not found. + */ +s8_t +ip6_find_route_entry(const ip6_addr_t *ip6_dest_addr) +{ + s8_t i, idx = -1; + + /* Search prefix in the sorted(decreasing order of prefix length) list */ + for(i = 0; i < LWIP_IPV6_NUM_ROUTE_ENTRIES; i++) { + if (memcmp(ip6_dest_addr, &static_route_table[i].prefix.addr, + static_route_table[i].prefix.prefix_len / 8) == 0) { + idx = i; + break; + } + } + + return idx; +} + +/** + * Finds the appropriate network interface for a given IPv6 address from a routing table with + * static IPv6 routes. + * + * @param src the source IPv6 address, if known + * @param dest the destination IPv6 address for which to find the route + * @return the netif on which to send to reach dest + */ +struct netif * +ip6_static_route(const ip6_addr_t *src, const ip6_addr_t *dest) +{ + int i; + + LWIP_UNUSED_ARG(src); + + /* Perform table lookup */ + i = ip6_find_route_entry(dest); + + if (i >= 0) { + return static_route_table[i].netif; + } else { + return NULL; + } +} + +/** + * Finds the gateway IP6 address for a given destination IPv6 address and target netif + * from a routing table with static IPv6 routes. + * + * @param netif the netif used for sending + * @param dest the destination IPv6 address + * @return the ip6 address of the gateway to forward packet to + */ +const ip6_addr_t * +ip6_get_gateway(struct netif *netif, const ip6_addr_t *dest) +{ + const ip6_addr_t *ret_gw = NULL; + const int i = ip6_find_route_entry(dest); + + LWIP_UNUSED_ARG(netif); + + if (i >= 0) { + if (static_route_table[i].gateway != NULL) { + ret_gw = static_route_table[i].gateway; + } + } + + return ret_gw; +} + +/** + * Returns the top of the route table. + * This should be used for debug printing only. + * + * @return the top of the route table. + */ +const struct ip6_route_entry * +ip6_get_route_table(void) +{ + return static_route_table; +} + +#endif /* LWIP_IPV6 */ diff --git a/middleware/lwip/contrib/addons/ipv6_static_routing/ip6_route_table.h b/middleware/lwip/contrib/addons/ipv6_static_routing/ip6_route_table.h new file mode 100644 index 0000000..478328e --- /dev/null +++ b/middleware/lwip/contrib/addons/ipv6_static_routing/ip6_route_table.h @@ -0,0 +1,94 @@ +/** + * @file + * + * IPv6 static route table. + */ + +/* + * Copyright (c) 2015 Nest Labs, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Pradip De + * + * + * Please coordinate changes and requests with Pradip De + * + */ + +#ifndef __LWIP_IP6_ROUTE_TABLE_H__ +#define __LWIP_IP6_ROUTE_TABLE_H__ + +#include "lwip/opt.h" + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/ip6_addr.h" +#include "lwip/err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct netif; + +/** + * LWIP_IPV6_NUM_ROUTES: Number of IPV6 routes that can be kept in the static route table. + */ +#ifndef LWIP_IPV6_NUM_ROUTE_ENTRIES +#define LWIP_IPV6_NUM_ROUTE_ENTRIES (8) +#endif + +#define IP6_MAX_PREFIX_LEN (128) +#define IP6_PREFIX_ALLOWED_GRANULARITY (8) +/* Prefix length cannot be greater than 128 bits and needs to be at a byte boundary */ +#define ip6_prefix_valid(prefix_len) (((prefix_len) <= IP6_MAX_PREFIX_LEN) && \ + (((prefix_len) % IP6_PREFIX_ALLOWED_GRANULARITY) == 0)) + +struct ip6_prefix { + ip6_addr_t addr; + u8_t prefix_len; /* prefix length in bits at byte boundaries */ +}; + +struct ip6_route_entry { + struct ip6_prefix prefix; + struct netif *netif; + const ip6_addr_t *gateway; +}; + +err_t ip6_add_route_entry(const struct ip6_prefix *ip6_prefix, struct netif *netif, + const ip6_addr_t *gateway, s8_t *idx); +void ip6_remove_route_entry(const struct ip6_prefix *ip6_prefix); +s8_t ip6_find_route_entry(const ip6_addr_t *ip6_dest_addr); +struct netif *ip6_static_route(const ip6_addr_t *src, const ip6_addr_t *dest); +const ip6_addr_t *ip6_get_gateway(struct netif *netif, const ip6_addr_t *dest); +const struct ip6_route_entry *ip6_get_route_table(void); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6 */ + +#endif /* __LWIP_IP6_ROUTE_TABLE_H__ */ diff --git a/middleware/lwip/contrib/addons/netconn/external_resolve/dnssd.c b/middleware/lwip/contrib/addons/netconn/external_resolve/dnssd.c new file mode 100644 index 0000000..d26743b --- /dev/null +++ b/middleware/lwip/contrib/addons/netconn/external_resolve/dnssd.c @@ -0,0 +1,164 @@ +/** + * @file + * DNS-SD APIs used by LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE + * + * This implementation assumes the DNS-SD API implementation (most likely provided by + * mDNSResponder) is implemented in the same process space as LwIP and can directly + * invoke the callback for DNSServiceGetAddrInfo. This is the typical deployment in + * an embedded environment where as a traditional OS requires pumping the callback results + * through an IPC mechanism (see DNSServiceRefSockFD/DNSServiceProcessResult) + * + * @defgroup dnssd DNS-SD + * @ingroup dns + */ + +/* + * Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Joel Cunningham + * + */ +#include "lwip/opt.h" + +#include "lwip/err.h" +#include "lwip/inet.h" +#include "lwip/sockets.h" +#include "lwip/sys.h" + +#include "dnssd.h" + +/* External headers */ +#include +#include + +/* This timeout should allow for multiple queries. +mDNSResponder has the following query timeline: + Query 1: time = 0s + Query 2: time = 1s + Query 3: time = 4s +*/ +#define GETADDR_TIMEOUT_MS 5000 +#define LOCAL_DOMAIN ".local" + +/* Only consume .local hosts */ +#ifndef CONSUME_LOCAL_ONLY +#define CONSUME_LOCAL_ONLY 1 +#endif + +struct addr_clbk_msg { + sys_sem_t sem; + struct sockaddr_storage addr; + err_t err; +}; + +static void addr_info_callback(DNSServiceRef ref, DNSServiceFlags flags, u32_t interface_index, + DNSServiceErrorType error_code, char const* hostname, + const struct sockaddr* address, u32_t ttl, void* context); + +int +lwip_dnssd_gethostbyname(const char *name, ip_addr_t *addr, u8_t addrtype, err_t *err) +{ + DNSServiceErrorType result; + DNSServiceRef ref; + struct addr_clbk_msg msg; + char *p; + + /* @todo: use with IPv6 */ + LWIP_UNUSED_ARG(addrtype); + +#if CONSUME_LOCAL_ONLY + /* check if this is a .local host. If it is, then we consume the query */ + p = strstr(name, LOCAL_DOMAIN); + if (p == NULL) { + return 0; /* not consumed */ + } + p += (sizeof(LOCAL_DOMAIN) - 1); + /* check to make sure .local isn't a substring (only allow .local\0 or .local.\0) */ + if ((*p != '.' && *p != '\0') || + (*p == '.' && *(p + 1) != '\0')) { + return 0; /* not consumed */ + } +#endif /* CONSUME_LOCAL_ONLY */ + + msg.err = sys_sem_new(&msg.sem, 0); + if (msg.err != ERR_OK) { + goto query_done; + } + + msg.err = ERR_TIMEOUT; + result = DNSServiceGetAddrInfo(&ref, 0, 0, kDNSServiceProtocol_IPv4, name, addr_info_callback, &msg); + if (result == kDNSServiceErr_NoError) { + sys_arch_sem_wait(&msg.sem, GETADDR_TIMEOUT_MS); + DNSServiceRefDeallocate(ref); + + /* We got a response */ + if (msg.err == ERR_OK) { + struct sockaddr_in* addr_in = (struct sockaddr_in *)&msg.addr; + if (addr_in->sin_family == AF_INET) { + inet_addr_to_ip4addr(ip_2_ip4(addr), &addr_in->sin_addr); + } else { + /* @todo add IPv6 support */ + msg.err = ERR_VAL; + } + } + } + sys_sem_free(&msg.sem); + +/* Query has been consumed and is finished */ +query_done: +*err = msg.err; +return 1; +} + +static void +addr_info_callback(DNSServiceRef ref, DNSServiceFlags flags, u32_t interface_index, + DNSServiceErrorType error_code, char const* hostname, + const struct sockaddr* address, u32_t ttl, void* context) +{ + struct addr_clbk_msg* msg = (struct addr_clbk_msg*)context; + struct sockaddr_in* addr_in = (struct sockaddr_in *)address; + + LWIP_UNUSED_ARG(ref); + LWIP_UNUSED_ARG(flags); + LWIP_UNUSED_ARG(interface_index); + LWIP_UNUSED_ARG(hostname); + LWIP_UNUSED_ARG(ttl); + LWIP_UNUSED_ARG(context); + + if ((error_code == kDNSServiceErr_NoError) && + (addr_in->sin_family == AF_INET)) { + MEMCPY(&msg->addr, addr_in, sizeof(*addr_in)); + msg->err = ERR_OK; + } + else { + /* @todo add IPv6 support */ + msg->err = ERR_VAL; + } + + sys_sem_signal(&msg->sem); +} /* addr_info_callback() */ diff --git a/middleware/lwip/contrib/addons/netconn/external_resolve/dnssd.h b/middleware/lwip/contrib/addons/netconn/external_resolve/dnssd.h new file mode 100644 index 0000000..e2d71d9 --- /dev/null +++ b/middleware/lwip/contrib/addons/netconn/external_resolve/dnssd.h @@ -0,0 +1,50 @@ +/** + * @file + * DNS-SD APIs used by LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE + * + * @defgroup dnssd DNS-SD + * @ingroup dns + */ + +/* + * Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Joel Cunningham + * + */ +#include "lwip/opt.h" + +#ifndef LWIP_HDR_DNSSD_H +#define LWIP_HDR_DNSSD_H + +#include "lwip/err.h" +#include "lwip/ip_addr.h" + +int lwip_dnssd_gethostbyname(const char *name, ip_addr_t *addr, u8_t addrtype, err_t *err); + +#endif /* LWIP_HDR_DNSSD_H */ diff --git a/middleware/lwip/contrib/addons/tcp_isn/tcp_isn.c b/middleware/lwip/contrib/addons/tcp_isn/tcp_isn.c new file mode 100644 index 0000000..c161499 --- /dev/null +++ b/middleware/lwip/contrib/addons/tcp_isn/tcp_isn.c @@ -0,0 +1,182 @@ +/** + * @file + * + * Reference implementation of the TCP ISN algorithm standardized in RFC 6528. + * Produce TCP Initial Sequence Numbers by combining an MD5-generated hash + * based on the new TCP connection's identity and a stable secret, with the + * current time at 4-microsecond granularity. + * + * Specifically, the implementation uses MD5 to compute a hash of the input + * buffer, which contains both the four-tuple of the new TCP connection (local + * and remote IP address and port), as well as a 16-byte secret to make the + * results unpredictable to external parties. The secret must be given at + * initialization time and should ideally remain the same across system + * reboots. To be sure: the spoofing-resistance of the resulting ISN depends + * mainly on the strength of the supplied secret! + * + * The implementation takes 32 bits from the computed hash, and adds to it the + * current time, in 4-microsecond units. The current time is computed from a + * boot time given at initialization, and the current uptime as provided by + * sys_now(). Thus, it assumes that sys_now() returns a time value that is + * relative to the boot time, i.e., that it starts at 0 at system boot, and + * only ever increases monotonically. + * + * For efficiency reasons, a single MD5 input buffer is used, and partially + * filled in at initialization time. Specifically, of this 64-byte buffer, the + * first 36 bytes are used for the four-way TCP tuple data, followed by the + * 16-byte secret, followed by 12-byte zero padding. The 64-byte size of the + * buffer should achieve the best performance for the actual MD5 computation. + * + * Basic usage: + * + * 1. in your lwipopts.h, add the following lines: + * + * #include + * struct ip_addr; + * u32_t lwip_hook_tcp_isn(const struct ip_addr *local_ip, u16_t local_port, + * const struct ip_addr *remote_ip, u16_t remote_port); + * "#define LWIP_HOOK_TCP_ISN lwip_hook_tcp_isn"; + * + * 2. from your own code, call lwip_init_tcp_isn() at initialization time, with + * appropriate parameters. + */ + +/* + * Copyright (c) 2016 The MINIX 3 Project. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: David van Moolenbroek + */ + +#include "tcp_isn.h" +#include "lwip/ip_addr.h" +#include "lwip/sys.h" +#include + +#ifdef LWIP_HOOK_TCP_ISN + +/* pull in md5 of ppp? */ +#include "netif/ppp/ppp_opts.h" +#if !PPP_SUPPORT || (!LWIP_USE_EXTERNAL_POLARSSL && !LWIP_USE_EXTERNAL_MBEDTLS) +#undef LWIP_INCLUDED_POLARSSL_MD5 +#define LWIP_INCLUDED_POLARSSL_MD5 1 +#include "netif/ppp/polarssl/md5.h" +#endif + +static u8_t input[64]; +static u32_t base_time; + +/** + * Initialize the TCP ISN module, with the boot time and a secret. + * + * @param boot_time Wall clock boot time of the system, in seconds. + * @param secret_16_bytes A 16-byte secret used to randomize the TCP ISNs. + */ +void +lwip_init_tcp_isn(u32_t boot_time, const u8_t *secret_16_bytes) +{ + /* Initialize the input buffer with the secret and trailing zeroes. */ + memset(input, 0, sizeof(input)); + + MEMCPY(&input[36], secret_16_bytes, 16); + + /* Save the boot time in 4-us units. Overflow is no problem here. */ + base_time = boot_time * 250000; +} + +/** + * Hook to generate an Initial Sequence Number (ISN) for a new TCP connection. + * + * @param local_ip The local IP address. + * @param local_port The local port number, in host-byte order. + * @param remote_ip The remote IP address. + * @param remote_port The remote port number, in host-byte order. + * @return The ISN to use for the new TCP connection. + */ +u32_t +lwip_hook_tcp_isn(const ip_addr_t *local_ip, u16_t local_port, + const ip_addr_t *remote_ip, u16_t remote_port) +{ + md5_context ctx; + u8_t output[16]; + u32_t isn; + +#if LWIP_IPV4 && LWIP_IPV6 + if (IP_IS_V6(local_ip)) +#endif /* LWIP_IPV4 && LWIP_IPV6 */ +#if LWIP_IPV6 + { + const ip6_addr_t *local_ip6, *remote_ip6; + + local_ip6 = ip_2_ip6(local_ip); + remote_ip6 = ip_2_ip6(remote_ip); + + SMEMCPY(&input[0], &local_ip6->addr, 16); + SMEMCPY(&input[16], &remote_ip6->addr, 16); + } +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 && LWIP_IPV6 + else +#endif /* LWIP_IPV4 && LWIP_IPV6 */ +#if LWIP_IPV4 + { + const ip4_addr_t *local_ip4, *remote_ip4; + + local_ip4 = ip_2_ip4(local_ip); + remote_ip4 = ip_2_ip4(remote_ip); + + /* Represent IPv4 addresses as IPv4-mapped IPv6 addresses, to ensure that + * the IPv4 and IPv6 address spaces are completely disjoint. */ + memset(&input[0], 0, 10); + input[10] = 0xff; + input[11] = 0xff; + SMEMCPY(&input[12], &local_ip4->addr, 4); + memset(&input[16], 0, 10); + input[26] = 0xff; + input[27] = 0xff; + SMEMCPY(&input[28], &remote_ip4->addr, 4); + } +#endif /* LWIP_IPV4 */ + + input[32] = (u8_t)(local_port >> 8); + input[33] = (u8_t)(local_port & 0xff); + input[34] = (u8_t)(remote_port >> 8); + input[35] = (u8_t)(remote_port & 0xff); + + /* The secret and padding are already filled in. */ + + /* Generate the hash, using MD5. */ + md5_starts(&ctx); + md5_update(&ctx, input, sizeof(input)); + md5_finish(&ctx, output); + + /* Arbitrarily take the first 32 bits from the generated hash. */ + MEMCPY(&isn, output, sizeof(isn)); + + /* Add the current time in 4-microsecond units. */ + return isn + base_time + sys_now() * 250; +} + +#endif /* LWIP_HOOK_TCP_ISN */ diff --git a/middleware/lwip/contrib/addons/tcp_isn/tcp_isn.h b/middleware/lwip/contrib/addons/tcp_isn/tcp_isn.h new file mode 100644 index 0000000..ebaeca2 --- /dev/null +++ b/middleware/lwip/contrib/addons/tcp_isn/tcp_isn.h @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2016 The MINIX 3 Project. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: David van Moolenbroek + */ + +#ifndef LWIP_HDR_CONTRIB_ADDONS_TCP_ISN_H +#define LWIP_HDR_CONTRIB_ADDONS_TCP_ISN_H + +#include "lwip/opt.h" +#include "lwip/ip_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +void lwip_init_tcp_isn(u32_t boot_time, const u8_t *secret_16_bytes); +u32_t lwip_hook_tcp_isn(const ip_addr_t *local_ip, u16_t local_port, + const ip_addr_t *remote_ip, u16_t remote_port); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_CONTRIB_ADDONS_TCP_ISN_H */ diff --git a/middleware/lwip/contrib/addons/tcp_md5/README b/middleware/lwip/contrib/addons/tcp_md5/README new file mode 100644 index 0000000..a6408ca --- /dev/null +++ b/middleware/lwip/contrib/addons/tcp_md5/README @@ -0,0 +1,27 @@ +This folder provides an example implementation of how to add custom tcp header +options and custom socket options. + +It does this by implementing the (seldom used) tcp md5 signature. + +To enable it, add an LWIP_HOOK_FILENAME hook file, include tcp_md5.h in it and +define these hooks: + + #define LWIP_HOOK_TCP_INPACKET_PCB(pcb, hdr, optlen, opt1len, opt2, p) tcp_md5_check_inpacket(pcb, hdr, optlen, opt1len, opt2, p) + #define LWIP_HOOK_TCP_OPT_LENGTH_SEGMENT(pcb, internal_len) tcp_md5_get_additional_option_length(pcb, internal_len) + #define LWIP_HOOK_TCP_ADD_TX_OPTIONS(p, hdr, pcb, opts) tcp_md5_add_tx_options(p, hdr, pcb, opts) + #define LWIP_HOOK_SOCKETS_SETSOCKOPT(s, sock, level, optname, optval, optlen, err) tcp_md5_setsockopt_hook(sock, level, optname, optval, optlen, err) + +Then, in your sockets application, enable md5 signature on a socket like this: + + struct tcp_md5sig md5; + struct sockaddr_storage addr_remote; /* Initialize this to remote address and port */ + memcpy(&md5.tcpm_addr, &addr_remote, sizeof(addr_remote)); + strcpy(md5.tcpm_key, key); /* this is the md5 key per connection */ + md5.tcpm_keylen = strlen(key); + if ((ret = setsockopt(sockfd, IPPROTO_TCP, TCP_MD5SIG, &md5, sizeof(md5))) < 0) { + perror("setsockopt TCP_MD5SIG"); + return; + } + +After that, your connection (client) or all incoming connections (server) require +tcp md5 signatures. diff --git a/middleware/lwip/contrib/addons/tcp_md5/tcp_md5.c b/middleware/lwip/contrib/addons/tcp_md5/tcp_md5.c new file mode 100644 index 0000000..e7815d8 --- /dev/null +++ b/middleware/lwip/contrib/addons/tcp_md5/tcp_md5.c @@ -0,0 +1,534 @@ +/** + * @file: An implementation of TCP MD5 signatures by using various hooks in + * lwIP to implement custom tcp options and custom socket options. + */ + +/* + * Copyright (c) 2018 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Simon Goldschmidt + */ + +#include "tcp_md5.h" +#include "lwip/ip_addr.h" +#include "lwip/sys.h" +#include "lwip/prot/tcp.h" +#include "lwip/priv/tcp_priv.h" +#include "lwip/sockets.h" +#include "lwip/priv/sockets_priv.h" +#include "lwip/api.h" +#include + +/* pull in md5 of ppp? */ +#include "netif/ppp/ppp_opts.h" +#if !PPP_SUPPORT || (!LWIP_USE_EXTERNAL_POLARSSL && !LWIP_USE_EXTERNAL_MBEDTLS) +#undef LWIP_INCLUDED_POLARSSL_MD5 +#define LWIP_INCLUDED_POLARSSL_MD5 1 +#include "netif/ppp/polarssl/md5.h" +#endif + +#if !LWIP_TCP_PCB_NUM_EXT_ARGS +#error tcp_md5 needs LWIP_TCP_PCB_NUM_EXT_ARGS +#endif + +#define LWIP_TCP_OPT_MD5 19 /* number of the md5 option */ +#define LWIP_TCP_OPT_LEN_MD5 18 /* length of the md5 option */ +#define LWIP_TCP_OPT_LEN_MD5_OUT 20 /* 18 + alignment */ + +#define LWIP_TCP_MD5_DIGEST_LEN 16 + +/* This keeps the md5 state internally */ +struct tcp_md5_conn_info { + struct tcp_md5_conn_info *next; + ip_addr_t remote_addr; + u16_t remote_port; + u8_t key[TCP_MD5SIG_MAXKEYLEN]; + u16_t key_len; +}; + +/* Callback function prototypes: */ +static void tcp_md5_extarg_destroy(u8_t id, void *data); +static err_t tcp_md5_extarg_passive_open(u8_t id, struct tcp_pcb_listen *lpcb, struct tcp_pcb *cpcb); +/* Define our tcp ext arg callback structure: */ +const struct tcp_ext_arg_callbacks tcp_md5_ext_arg_callbacks = { + tcp_md5_extarg_destroy, + tcp_md5_extarg_passive_open +}; + +static u8_t tcp_md5_extarg_id = LWIP_TCP_PCB_NUM_EXT_ARG_ID_INVALID; +static u8_t tcp_md5_opts_buf[40]; + +/** Initialize this module (allocates a tcp ext arg id) */ +void +tcp_md5_init(void) +{ + tcp_md5_extarg_id = tcp_ext_arg_alloc_id(); +} + +/* Create a conn-info structure that holds the md5 state per connection */ +static struct tcp_md5_conn_info * +tcp_md5_conn_info_alloc(void) +{ + return (struct tcp_md5_conn_info *)mem_malloc(sizeof(struct tcp_md5_conn_info)); +} + +/* Frees a conn-info structure that holds the md5 state per connection */ +static void +tcp_md5_conn_info_free(struct tcp_md5_conn_info *info) +{ + mem_free(info); +} + +/* A pcb is about to be destroyed. Free its extdata */ +static void +tcp_md5_extarg_destroy(u8_t id, void *data) +{ + struct tcp_md5_conn_info *iter; + + LWIP_ASSERT("tcp_md5_extarg_id != LWIP_TCP_PCB_NUM_EXT_ARG_ID_INVALID", + tcp_md5_extarg_id != LWIP_TCP_PCB_NUM_EXT_ARG_ID_INVALID); + LWIP_ASSERT("id == tcp_md5_extarg_id", id == tcp_md5_extarg_id); + LWIP_UNUSED_ARG(id); + + iter = (struct tcp_md5_conn_info *)data; + while (iter != NULL) { + struct tcp_md5_conn_info *info = iter; + iter = iter->next; + tcp_md5_conn_info_free(info); + } +} + +/* Try to find an md5 connection info for the specified remote connection */ +static struct tcp_md5_conn_info * +tcp_md5_get_info(const struct tcp_pcb *pcb, const ip_addr_t *remote_ip, u16_t remote_port) +{ + if (pcb != NULL) { + struct tcp_md5_conn_info *info = (struct tcp_md5_conn_info *)tcp_ext_arg_get(pcb, tcp_md5_extarg_id); + while (info != NULL) { + if (ip_addr_eq(&info->remote_addr, remote_ip)) { + if (info->remote_port == remote_port) { + return info; + } + } + info = info->next; + } + } + return NULL; +} + +/* Passive open: copy md5 connection info from listen pcb to connection pcb + * or return error (connection will be closed) + */ +static err_t +tcp_md5_extarg_passive_open(u8_t id, struct tcp_pcb_listen *lpcb, struct tcp_pcb *cpcb) +{ + struct tcp_md5_conn_info *iter; + + LWIP_ASSERT("lpcb != NULL", lpcb != NULL); + LWIP_ASSERT("cpcb != NULL", cpcb != NULL); + LWIP_ASSERT("tcp_md5_extarg_id != LWIP_TCP_PCB_NUM_EXT_ARG_ID_INVALID", + tcp_md5_extarg_id != LWIP_TCP_PCB_NUM_EXT_ARG_ID_INVALID); + LWIP_ASSERT("id == tcp_md5_extarg_id", id == tcp_md5_extarg_id); + LWIP_UNUSED_ARG(id); + + iter = (struct tcp_md5_conn_info *)tcp_ext_arg_get((struct tcp_pcb *)lpcb, id); + while (iter != NULL) { + if (iter->remote_port == cpcb->remote_port) { + if (ip_addr_eq(&iter->remote_addr, &cpcb->remote_ip)) { + struct tcp_md5_conn_info *info = tcp_md5_conn_info_alloc(); + if (info != NULL) { + memcpy(info, iter, sizeof(struct tcp_md5_conn_info)); + tcp_ext_arg_set(cpcb, id, info); + tcp_ext_arg_set_callbacks(cpcb, id, &tcp_md5_ext_arg_callbacks); + return ERR_OK; + } else { + return ERR_MEM; + } + } + } + iter = iter->next; + } + /* remote connection not found */ + return ERR_VAL; +} + +/* Parse tcp header options and return 1 if an md5 signature option was found */ +static int +tcp_md5_parseopt(const u8_t *opts, u16_t optlen, u8_t *md5_digest_out) +{ + u8_t data; + u16_t optidx; + + /* Parse the TCP MSS option, if present. */ + if (optlen != 0) { + for (optidx = 0; optidx < optlen; ) { + u8_t opt = opts[optidx++]; + switch (opt) { + case LWIP_TCP_OPT_EOL: + /* End of options. */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: EOL\n")); + return 0; + case LWIP_TCP_OPT_NOP: + /* NOP option. */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: NOP\n")); + break; + case LWIP_TCP_OPT_MD5: + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: MD5\n")); + if (opts[optidx++] != LWIP_TCP_OPT_LEN_MD5 || (optidx - 2 + LWIP_TCP_OPT_LEN_MD5) > optlen) { + /* Bad length */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); + return 0; + } + /* An MD5 option with the right option length. */ + memcpy(md5_digest_out, &opts[optidx], LWIP_TCP_MD5_DIGEST_LEN); + /* no need to process the options further */ + return 1; + break; + default: + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: other\n")); + data = opts[optidx++]; + if (data < 2) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); + /* If the length field is zero, the options are malformed + and we don't process them further. */ + return 0; + } + /* All other options have a length field, so that we easily + can skip past them. */ + optidx += data - 2; + } + } + } + return 0; +} + +/* Get tcp options into contiguous memory. May be required if input pbufs + * are chained. + */ +static const u8_t* +tcp_md5_options_singlebuf(struct tcp_hdr *hdr, u16_t optlen, u16_t opt1len, u8_t *opt2) +{ + const u8_t *opts; + LWIP_ASSERT("hdr != NULL", hdr != NULL); + LWIP_ASSERT("optlen >= opt1len", optlen >= opt1len); + opts = (const u8_t *)hdr + TCP_HLEN; + if (optlen == opt1len) { + /* arleady in one piece */ + return opts; + } + if (optlen > sizeof(tcp_md5_opts_buf)) { + /* options too long */ + return NULL; + } + LWIP_ASSERT("opt2 != NULL", opt2 != NULL); + /* copy first part */ + memcpy(tcp_md5_opts_buf, opts, opt1len); + /* copy second part */ + memcpy(&tcp_md5_opts_buf[opt1len], opt2, optlen - opt1len); + return tcp_md5_opts_buf; +} + +/* Create the md5 digest for a given segment */ +static int +tcp_md5_create_digest(const ip_addr_t *ip_src, const ip_addr_t *ip_dst, const struct tcp_hdr *hdr, + const u8_t *key, size_t key_len, u8_t *digest_out, struct pbuf *p) +{ + md5_context ctx; + u8_t tmp8; + u16_t tmp16; + const size_t addr_len = IP_ADDR_RAW_SIZE(*ip_src); + + if (p != NULL) { + LWIP_ASSERT("pbuf must not point to tcp header here!", (const void *)hdr != p->payload); + } + + /* Generate the hash, using MD5. */ + md5_starts(&ctx); + /* 1. the TCP pseudo-header (in the order: source IP address, + destination IP address, zero-padded protocol number, and + segment length) */ + md5_update(&ctx, (const unsigned char*)ip_src, addr_len); + md5_update(&ctx, (const unsigned char*)ip_dst, addr_len); + tmp8 = 0; /* zero-padded */ + md5_update(&ctx, &tmp8, 1); + tmp8 = IP_PROTO_TCP; + md5_update(&ctx, &tmp8, 1); + tmp16 = lwip_htons(TCPH_HDRLEN_BYTES(hdr) + (p ? p->tot_len : 0)); + md5_update(&ctx, (const unsigned char*)&tmp16, 2); + /* 2. the TCP header, excluding options, and assuming a checksum of + zero */ + md5_update(&ctx, (const unsigned char*)hdr, sizeof(struct tcp_hdr)); + /* 3. the TCP segment data (if any) */ + if ((p != NULL) && (p->tot_len != 0)) { + struct pbuf *q; + for (q = p; q != NULL; q = q->next) { + md5_update(&ctx, (const unsigned char*)q->payload, q->len); + } + } + /* 4. an independently-specified key or password, known to both TCPs + and presumably connection-specific */ + md5_update(&ctx, key, key_len); + + md5_finish(&ctx, digest_out); + return 1; +} + +/* Duplicate a tcp header and make sure the fields are in network byte order */ +static void +tcp_md5_dup_tcphdr(struct tcp_hdr *tcphdr_copy, const struct tcp_hdr *tcphdr_in, int tcphdr_in_is_host_order) +{ + memcpy(tcphdr_copy, tcphdr_in, sizeof(struct tcp_hdr)); + tcphdr_copy->chksum = 0; /* checksum is zero for the pseudo header */ + if (tcphdr_in_is_host_order) { + /* lwIP writes the TCP header values back to the buffer, we need to invert that here: */ + tcphdr_copy->src = lwip_htons(tcphdr_copy->src); + tcphdr_copy->dest = lwip_htons(tcphdr_copy->dest); + tcphdr_copy->seqno = lwip_htonl(tcphdr_copy->seqno); + tcphdr_copy->ackno = lwip_htonl(tcphdr_copy->ackno); + tcphdr_copy->wnd = lwip_htons(tcphdr_copy->wnd); + tcphdr_copy->urgp = lwip_htons(tcphdr_copy->urgp); + } +} + +/* Check if md5 is enabled on a given pcb */ +static int +tcp_md5_is_enabled_on_pcb(const struct tcp_pcb *pcb) +{ + if (tcp_md5_extarg_id != LWIP_TCP_PCB_NUM_EXT_ARG_ID_INVALID) { + struct tcp_md5_conn_info *info = (struct tcp_md5_conn_info *)tcp_ext_arg_get(pcb, tcp_md5_extarg_id); + if (info != NULL) { + return 1; + } + } + return 0; +} + +/* Check if md5 is enabled on a given listen pcb */ +static int +tcp_md5_is_enabled_on_lpcb(const struct tcp_pcb_listen *lpcb) +{ + /* same as for connection pcbs */ + return tcp_md5_is_enabled_on_pcb((const struct tcp_pcb *)lpcb); +} + +/* Hook implementation for LWIP_HOOK_TCP_OPT_LENGTH_SEGMENT */ +u8_t +tcp_md5_get_additional_option_length(const struct tcp_pcb *pcb, u8_t internal_option_length) +{ + if ((pcb != NULL) && tcp_md5_is_enabled_on_pcb(pcb)) { + u8_t new_option_length = internal_option_length + LWIP_TCP_OPT_LEN_MD5_OUT; + LWIP_ASSERT("overflow", new_option_length > internal_option_length); + LWIP_ASSERT("options too long", new_option_length <= TCP_MAX_OPTION_BYTES); + return new_option_length; + } + return internal_option_length; +} + +/* Hook implementation for LWIP_HOOK_TCP_INPACKET_PCB when called for listen pcbs */ +static err_t +tcp_md5_check_listen(struct tcp_pcb_listen* lpcb, struct tcp_hdr *hdr, u16_t optlen, u16_t opt1len, u8_t *opt2) +{ + LWIP_ASSERT("lpcb != NULL", lpcb != NULL); + + if (tcp_md5_is_enabled_on_lpcb(lpcb)) { + const u8_t *opts; + u8_t digest_received[LWIP_TCP_MD5_DIGEST_LEN]; + u8_t digest_calculated[LWIP_TCP_MD5_DIGEST_LEN]; + const struct tcp_md5_conn_info *info = tcp_md5_get_info((struct tcp_pcb *)lpcb, ip_current_src_addr(), hdr->src); + if (info != NULL) { + opts = tcp_md5_options_singlebuf(hdr, optlen, opt1len, opt2); + if (opts != NULL) { + if (tcp_md5_parseopt(opts, optlen, digest_received)) { + struct tcp_hdr tcphdr_copy; + tcp_md5_dup_tcphdr(&tcphdr_copy, hdr, 1); + if (tcp_md5_create_digest(ip_current_src_addr(), ip_current_dest_addr(), &tcphdr_copy, info->key, info->key_len, digest_calculated, NULL)) { + /* everything set up, compare the digests */ + if (!memcmp(digest_received, digest_calculated, LWIP_TCP_MD5_DIGEST_LEN)) { + /* equal */ + return ERR_OK; + } + /* not equal */ + } + } + } + } + /* md5 enabled on this pcb but no match or other error -> fail */ + return ERR_VAL; + } + return ERR_OK; +} + +/* Hook implementation for LWIP_HOOK_TCP_INPACKET_PCB */ +err_t +tcp_md5_check_inpacket(struct tcp_pcb* pcb, struct tcp_hdr *hdr, u16_t optlen, u16_t opt1len, u8_t *opt2, struct pbuf *p) +{ + LWIP_ASSERT("pcb != NULL", pcb != NULL); + + if (pcb->state == LISTEN) { + return tcp_md5_check_listen((struct tcp_pcb_listen *)pcb, hdr, optlen, opt1len, opt2); + } + + if (tcp_md5_is_enabled_on_pcb(pcb)) { + const struct tcp_md5_conn_info *info = tcp_md5_get_info(pcb, ip_current_src_addr(), hdr->src); + if (info != NULL) { + const u8_t *opts; + u8_t digest_received[LWIP_TCP_MD5_DIGEST_LEN]; + u8_t digest_calculated[LWIP_TCP_MD5_DIGEST_LEN]; + opts = tcp_md5_options_singlebuf(hdr, optlen, opt1len, opt2); + if (opts != NULL) { + if (tcp_md5_parseopt(opts, optlen, digest_received)) { + struct tcp_hdr hdr_copy; + tcp_md5_dup_tcphdr(&hdr_copy, hdr, 1); + if (tcp_md5_create_digest(&pcb->remote_ip, &pcb->local_ip, &hdr_copy, info->key, info->key_len, digest_calculated, p)) { + /* everything set up, compare the digests */ + if (!memcmp(digest_received, digest_calculated, LWIP_TCP_MD5_DIGEST_LEN)) { + /* equal */ + return ERR_OK; + } + /* not equal */ + } + } + } + } + /* md5 enabled on this pcb but no match or other error -> fail */ + return ERR_VAL; + } + return ERR_OK; +} + +/* Hook implementation for LWIP_HOOK_TCP_ADD_TX_OPTIONS */ +u32_t * +tcp_md5_add_tx_options(struct pbuf *p, struct tcp_hdr *hdr, const struct tcp_pcb *pcb, u32_t *opts) +{ + LWIP_ASSERT("p != NULL", p != NULL); + LWIP_ASSERT("hdr != NULL", hdr != NULL); + LWIP_ASSERT("pcb != NULL", pcb != NULL); + LWIP_ASSERT("opts != NULL", opts != NULL); + + if (tcp_md5_is_enabled_on_pcb(pcb)) { + u8_t digest_calculated[LWIP_TCP_MD5_DIGEST_LEN]; + u32_t *opts_ret = opts + 5; /* we use 20 bytes: 2 bytes padding + 18 bytes for this option */ + u8_t *ptr = (u8_t*)opts; + + const struct tcp_md5_conn_info *info = tcp_md5_get_info(pcb, &pcb->remote_ip, pcb->remote_port); + if (info != NULL) { + struct tcp_hdr hdr_copy; + size_t hdrsize = TCPH_HDRLEN_BYTES(hdr); + tcp_md5_dup_tcphdr(&hdr_copy, hdr, 0); + /* p->payload points to the tcp header */ + LWIP_ASSERT("p->payload == hdr", p->payload == hdr); + if (!pbuf_remove_header(p, hdrsize)) { + u8_t ret; + if (!tcp_md5_create_digest(&pcb->local_ip, &pcb->remote_ip, &hdr_copy, info->key, info->key_len, digest_calculated, p)) { + info = NULL; + } + ret = pbuf_add_header_force(p, hdrsize); + LWIP_ASSERT("tcp_md5_add_tx_options: pbuf_add_header_force failed", !ret); + LWIP_UNUSED_ARG(ret); + } else { + LWIP_ASSERT("error", 0); + } + } + if (info == NULL) { + /* create an invalid signature by zeroing the digest */ + memset(&digest_calculated, 0, sizeof(digest_calculated)); + } + + *ptr++ = LWIP_TCP_OPT_NOP; + *ptr++ = LWIP_TCP_OPT_NOP; + *ptr++ = LWIP_TCP_OPT_MD5; + *ptr++ = LWIP_TCP_OPT_LEN_MD5; + memcpy(ptr, digest_calculated, LWIP_TCP_MD5_DIGEST_LEN); + ptr += LWIP_TCP_MD5_DIGEST_LEN; + LWIP_ASSERT("ptr == opts_ret", ptr == (u8_t *)opts_ret); + return opts_ret; + } + return opts; +} + +/* Hook implementation for LWIP_HOOK_SOCKETS_SETSOCKOPT */ +int +tcp_md5_setsockopt_hook(struct lwip_sock *sock, int level, int optname, const void *optval, socklen_t optlen, int *err) +{ + LWIP_ASSERT("sock != NULL", sock != NULL); + LWIP_ASSERT("err != NULL", err != NULL); + + if ((level == IPPROTO_TCP) && (optname == TCP_MD5SIG)) { + const struct tcp_md5sig *md5 = (const struct tcp_md5sig*)optval; + if ((optval == NULL) || (optlen < sizeof(struct tcp_md5sig))) { + *err = EINVAL; + } else { + if (sock->conn && (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP) && (sock->conn->pcb.tcp != NULL)) { + if (tcp_md5_extarg_id == LWIP_TCP_PCB_NUM_EXT_ARG_ID_INVALID) { + /* not initialized */ + *err = EINVAL; + } else { + struct tcp_md5_conn_info *info = tcp_md5_conn_info_alloc(); + if (info == NULL) { + *err = ENOMEM; + } else { + int addr_valid = 0; + /* OK, fill and link this request */ + memcpy(info->key, md5->tcpm_key, TCP_MD5SIG_MAXKEYLEN); + info->key_len = md5->tcpm_keylen; + memset(&info->remote_addr, 0, sizeof(info->remote_addr)); + if (md5->tcpm_addr.ss_family == AF_INET) { +#if LWIP_IPV4 + const struct sockaddr_in *sin = (const struct sockaddr_in *)&md5->tcpm_addr; + memcpy(&info->remote_addr, &sin->sin_addr, sizeof(sin->sin_addr)); + IP_SET_TYPE_VAL(info->remote_addr, IPADDR_TYPE_V4); + info->remote_port = lwip_htons(sin->sin_port); + addr_valid = 1; +#endif /* LWIP_IPV4 */ + } else if (md5->tcpm_addr.ss_family == AF_INET6) { +#if LWIP_IPV6 + const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)&md5->tcpm_addr; + memcpy(&info->remote_addr, &sin6->sin6_addr, sizeof(sin6->sin6_addr)); + IP_SET_TYPE_VAL(info->remote_addr, IPADDR_TYPE_V6); + info->remote_port = lwip_htons(sin6->sin6_port); + addr_valid = 1; +#endif /* LWIP_IPV6 */ + } + if (addr_valid) { + /* store it */ + tcp_ext_arg_set_callbacks(sock->conn->pcb.tcp, tcp_md5_extarg_id, &tcp_md5_ext_arg_callbacks); + info->next = (struct tcp_md5_conn_info *)tcp_ext_arg_get(sock->conn->pcb.tcp, tcp_md5_extarg_id); + tcp_ext_arg_set(sock->conn->pcb.tcp, tcp_md5_extarg_id, info); + } else { + *err = EINVAL; + tcp_md5_conn_info_free(info); + } + } + } + } else { + /* not a tcp netconn */ + *err = EINVAL; + } + } + return 1; + } + return 0; +} diff --git a/middleware/lwip/contrib/addons/tcp_md5/tcp_md5.h b/middleware/lwip/contrib/addons/tcp_md5/tcp_md5.h new file mode 100644 index 0000000..e55740a --- /dev/null +++ b/middleware/lwip/contrib/addons/tcp_md5/tcp_md5.h @@ -0,0 +1,84 @@ +/* + * Copyright (c) 2018 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Simon Goldschmidt + * + * To use the hooks in this file, make sure this file is included in LWIP_HOOK_FILENAME + * and define these hooks: + * + * #define LWIP_HOOK_TCP_INPACKET_PCB(pcb, hdr, optlen, opt1len, opt2, p) tcp_md5_check_inpacket(pcb, hdr, optlen, opt1len, opt2, p) + * #define LWIP_HOOK_TCP_OPT_LENGTH_SEGMENT(pcb, internal_len) tcp_md5_get_additional_option_length(pcb, internal_len) + * #define LWIP_HOOK_TCP_ADD_TX_OPTIONS(p, hdr, pcb, opts) tcp_md5_add_tx_options(p, hdr, pcb, opts) + * + * #define LWIP_HOOK_SOCKETS_SETSOCKOPT(s, sock, level, optname, optval, optlen, err) tcp_md5_setsockopt_hook(sock, level, optname, optval, optlen, err) + */ + +#ifndef LWIP_HDR_CONTRIB_ADDONS_TCP_MD5_H +#define LWIP_HDR_CONTRIB_ADDONS_TCP_MD5_H + +#include "lwip/opt.h" +#include "lwip/ip_addr.h" +#include "lwip/err.h" + +#include "lwip/priv/sockets_priv.h" +#include "lwip/priv/tcp_priv.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* setsockopt definitions and structs: */ + +/* This is the optname (for level = IPPROTO_TCP) */ +#ifndef TCP_MD5SIG +#define TCP_MD5SIG 14 +#endif + +#define TCP_MD5SIG_MAXKEYLEN 80 + +/* This is the optval type */ +struct tcp_md5sig { + struct sockaddr_storage tcpm_addr; + u16_t __tcpm_pad1; + u16_t tcpm_keylen; + u32_t __tcpm_pad2; + u8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN]; +}; + +/* socket setsockopt hook: */ +int tcp_md5_setsockopt_hook(struct lwip_sock *sock, int level, int optname, const void *optval, u32_t optlen, int *err); + +/* Internal hook functions */ +void tcp_md5_init(void); +err_t tcp_md5_check_inpacket(struct tcp_pcb* pcb, struct tcp_hdr *hdr, u16_t optlen, u16_t opt1len, u8_t *opt2, struct pbuf *p); +u8_t tcp_md5_get_additional_option_length(const struct tcp_pcb *pcb, u8_t internal_option_length); +u32_t *tcp_md5_add_tx_options(struct pbuf *p, struct tcp_hdr *hdr, const struct tcp_pcb *pcb, u32_t *opts); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_CONTRIB_ADDONS_TCP_MD5_H */ diff --git a/middleware/lwip/contrib/apps/chargen/README b/middleware/lwip/contrib/apps/chargen/README new file mode 100644 index 0000000..7dc2ee5 --- /dev/null +++ b/middleware/lwip/contrib/apps/chargen/README @@ -0,0 +1,52 @@ + + CHARGEN + +This file implements a nice example of handling multiple tcp sockets in a +server environment. Just call chargen_init() from your application after +you have initialized lwip and added your network interfaces. Change the +MAX_SERV option to increase or decrease the number of sessions supported. + +chargen will jam as much data as possible into the output socket, so it +will take up a lot of CPU time. Therefore it will be a good idea to run it +as the lowest possible priority (just ahead of any idle task). + +This is also a good example of how to support multiple sessions in an +embedded system where you might not have fork(). The multiple sessions are +all handled by the same thread and select() is used for demultiplexing. + +No makefile is provided, just add chargen to the makefile for your +application. It is OS and HW independent. + +Once the chargen server is running in your application, go to another system +and open a telnet session to your lwip platform at port 19. You should see an +ASCII pattern start to stream on you screen. + +As an example, lets say that your system running lwip is at IP address +192.168.10.244 and you have a linux system connected to it at IP address +192.168.10.59. Issue the following command at a terminal prompt on the linux system: + +telnet 192.168.10.244 19 + +You will see a pattern similar to the following on streaming by on your +screen: + +ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{ +BCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{| +CDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|} +DEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~ +EFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~! +FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!" +GHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!"# +HIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!"#$ +IJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!"#$% +JKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!"#$%& +KLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!"#$%&' +LMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!"#$%&'( + +It even works from windows: At a dos prompt you can also issue the same +telnet command and you will get a similar (but much slower, at least on W98) +data stream. + +David Haas + + diff --git a/middleware/lwip/contrib/apps/chargen/chargen.c b/middleware/lwip/contrib/apps/chargen/chargen.c new file mode 100644 index 0000000..47408ee --- /dev/null +++ b/middleware/lwip/contrib/apps/chargen/chargen.c @@ -0,0 +1,274 @@ +/** @file + * + * chargen server for lwip + */ +/* + * Copyright (c) 2003 NBS Card Technology, Paramus, NJ. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: David Haas + * + * Purpose: chargen server for testing and demonstration purposes + * + * This file implements a nice example of handling multiple tcp sockets in a + * server environment. Just call chargen_init() from your application after + * you have initialized lwip and added your network interfaces. Change the + * MAX_SERV option to increase or decrease the number of sessions supported. + * + * chargen will jam as much data as possible into the output socket, so it + * will take up a lot of CPU time. Therefore it will be a good idea to run it + * as the lowest possible priority (just ahead of any idle task). + * + * This is also a good example of how to support multiple sessions in an + * embedded system where you might not have fork(). + */ + +#include "lwip/opt.h" +#include "lwip/sys.h" +#include "lwip/sockets.h" +#include "lwip/mem.h" + +#include + +#include "chargen.h" + +#if LWIP_SOCKET && LWIP_SOCKET_SELECT + +#define MAX_SERV 5 /* Maximum number of chargen services. Don't need too many */ +#define CHARGEN_THREAD_NAME "chargen" +#define CHARGEN_PRIORITY 254 /* Really low priority */ +#define CHARGEN_THREAD_STACKSIZE 0 +#define SEND_SIZE TCP_SNDLOWAT /* If we only send this much, then when select + says we can send, we know we won't block */ + +struct charcb { + struct charcb *next; + int socket; + struct sockaddr_storage cliaddr; + socklen_t clilen; + char nextchar; +}; + +static struct charcb *charcb_list = 0; + +/************************************************************** + * void close_chargen(struct charcb *p_charcb) + * + * Close the socket and remove this charcb from the list. + **************************************************************/ +static void +close_chargen(struct charcb *p_charcb) +{ + struct charcb *p_search_charcb; + + /* Either an error or tcp connection closed on other + * end. Close here */ + lwip_close(p_charcb->socket); + /* Free charcb */ + if (charcb_list == p_charcb) { + charcb_list = p_charcb->next; + } else { + for (p_search_charcb = charcb_list; p_search_charcb; p_search_charcb = p_search_charcb->next) { + if (p_search_charcb->next == p_charcb) { + p_search_charcb->next = p_charcb->next; + break; + } + } + } + mem_free(p_charcb); +} + +/************************************************************** + * void do_read(struct charcb *p_charcb) + * + * Socket definitely is ready for reading. Read a buffer from the socket and + * discard the data. If no data is read, then the socket is closed and the + * charcb is removed from the list and freed. + **************************************************************/ +static int +do_read(struct charcb *p_charcb) +{ + char buffer[80]; + int readcount; + + /* Read some data */ + readcount = lwip_read(p_charcb->socket, &buffer, 80); + if (readcount <= 0) { + close_chargen(p_charcb); + return -1; + } + return 0; +} + +/************************************************************** + * void chargen_thread(void *arg) + * + * chargen task. This server will wait for connections on well + * known TCP port number: 19. For every connection, the server will + * write as much data as possible to the tcp port. + **************************************************************/ +static void +chargen_thread(void *arg) +{ + int listenfd; +#if LWIP_IPV6 + struct sockaddr_in6 chargen_saddr; +#else /* LWIP_IPV6 */ + struct sockaddr_in chargen_saddr; +#endif /* LWIP_IPV6 */ + fd_set readset; + fd_set writeset; + int i, maxfdp1; + struct charcb *p_charcb; + LWIP_UNUSED_ARG(arg); + + memset(&chargen_saddr, 0, sizeof (chargen_saddr)); +#if LWIP_IPV6 + /* First acquire our socket for listening for connections */ + listenfd = lwip_socket(AF_INET6, SOCK_STREAM, 0); + chargen_saddr.sin6_family = AF_INET6; + chargen_saddr.sin6_addr = in6addr_any; + chargen_saddr.sin6_port = lwip_htons(19); /* Chargen server port */ +#else /* LWIP_IPV6 */ + /* First acquire our socket for listening for connections */ + listenfd = lwip_socket(AF_INET, SOCK_STREAM, 0); + chargen_saddr.sin_family = AF_INET; + chargen_saddr.sin_addr.s_addr = PP_HTONL(INADDR_ANY); + chargen_saddr.sin_port = lwip_htons(19); /* Chargen server port */ +#endif /* LWIP_IPV6 */ + + LWIP_ASSERT("chargen_thread(): Socket create failed.", listenfd >= 0); + + if (lwip_bind(listenfd, (struct sockaddr *) &chargen_saddr, sizeof (chargen_saddr)) == -1) { + LWIP_ASSERT("chargen_thread(): Socket bind failed.", 0); + } + + /* Put socket into listening mode */ + if (lwip_listen(listenfd, MAX_SERV) == -1) { + LWIP_ASSERT("chargen_thread(): Listen failed.", 0); + } + + + /* Wait forever for network input: This could be connections or data */ + for (;;) { + maxfdp1 = listenfd + 1; + + /* Determine what sockets need to be in readset */ + FD_ZERO(&readset); + FD_ZERO(&writeset); + FD_SET(listenfd, &readset); + for (p_charcb = charcb_list; p_charcb; p_charcb = p_charcb->next) { + if (maxfdp1 < p_charcb->socket + 1) { + maxfdp1 = p_charcb->socket + 1; + } + FD_SET(p_charcb->socket, &readset); + FD_SET(p_charcb->socket, &writeset); + } + + /* Wait for data or a new connection */ + i = lwip_select(maxfdp1, &readset, &writeset, 0, 0); + + if (i == 0) { + continue; + } + /* At least one descriptor is ready */ + if (FD_ISSET(listenfd, &readset)) { + /* We have a new connection request!!! */ + /* Lets create a new control block */ + p_charcb = (struct charcb *) mem_malloc(sizeof (struct charcb)); + if (p_charcb) { + p_charcb->socket = lwip_accept(listenfd, + (struct sockaddr *) &p_charcb->cliaddr, + &p_charcb->clilen); + if (p_charcb->socket < 0) { + mem_free(p_charcb); + } else { + /* Keep this tecb in our list */ + p_charcb->next = charcb_list; + charcb_list = p_charcb; + p_charcb->nextchar = 0x21; + } + } else { + /* No memory to accept connection. Just accept and then close */ + int sock; + struct sockaddr cliaddr; + socklen_t clilen; + + sock = lwip_accept(listenfd, &cliaddr, &clilen); + if (sock >= 0) { + lwip_close(sock); + } + } + } + /* Go through list of connected clients and process data */ + for (p_charcb = charcb_list; p_charcb; p_charcb = p_charcb->next) { + if (FD_ISSET(p_charcb->socket, &readset)) { + /* This socket is ready for reading. This could be because someone typed + * some characters or it could be because the socket is now closed. Try reading + * some data to see. */ + if (do_read(p_charcb) < 0) { + break; + } + } + if (FD_ISSET(p_charcb->socket, &writeset)) { + char line[80]; + char setchar = p_charcb->nextchar; + + for (i = 0; i < 59; i++) { + line[i] = setchar; + if (++setchar == 0x7f) { + setchar = 0x21; + } + } + line[i] = 0; + strcat(line, "\n\r"); + if (lwip_write(p_charcb->socket, line, strlen(line)) < 0) { + close_chargen(p_charcb); + break; + } + if (++p_charcb->nextchar == 0x7f) { + p_charcb->nextchar = 0x21; + } + } + } + } +} + + +/************************************************************** + * void chargen_init(void) + * + * This function initializes the chargen service. This function + * may only be called either before or after tasking has started. + **************************************************************/ +void +chargen_init(void) +{ + sys_thread_new(CHARGEN_THREAD_NAME, chargen_thread, 0, CHARGEN_THREAD_STACKSIZE, CHARGEN_PRIORITY); +} + +#endif /* LWIP_SOCKET && LWIP_SOCKET_SELECT */ diff --git a/middleware/lwip/contrib/apps/chargen/chargen.h b/middleware/lwip/contrib/apps/chargen/chargen.h new file mode 100644 index 0000000..eb83e4f --- /dev/null +++ b/middleware/lwip/contrib/apps/chargen/chargen.h @@ -0,0 +1,12 @@ +#ifndef LWIP_CHARGEN_H +#define LWIP_CHARGEN_H + +#include "lwip/opt.h" + +#if LWIP_SOCKET + +void chargen_init(void); + +#endif /* LWIP_SOCKET */ + +#endif /* LWIP_CHARGEN_H */ diff --git a/middleware/lwip/contrib/apps/httpserver/README b/middleware/lwip/contrib/apps/httpserver/README new file mode 100644 index 0000000..1f18bb8 --- /dev/null +++ b/middleware/lwip/contrib/apps/httpserver/README @@ -0,0 +1,12 @@ +HTTPSERVER + +This is a demonstration of how to make the most basic kind +of server using lWIP. + +* httpserver-raw.c - uses raw TCP calls (coming soon!) + +* httpserver-netconn.c - uses netconn and netbuf API + +This code updates the examples in Adam Dunkel's original +lwIP documentation to match changes in the code since that +PDF release. diff --git a/middleware/lwip/contrib/apps/httpserver/httpserver-netconn.c b/middleware/lwip/contrib/apps/httpserver/httpserver-netconn.c new file mode 100644 index 0000000..36f5ad8 --- /dev/null +++ b/middleware/lwip/contrib/apps/httpserver/httpserver-netconn.c @@ -0,0 +1,103 @@ + +#include "lwip/opt.h" +#include "lwip/arch.h" +#include "lwip/api.h" + +#include "httpserver-netconn.h" + +#if LWIP_NETCONN + +#ifndef HTTPD_DEBUG +#define HTTPD_DEBUG LWIP_DBG_OFF +#endif + +static const char http_html_hdr[] = "HTTP/1.1 200 OK\r\nContent-type: text/html\r\n\r\n"; +static const char http_index_html[] = "Congrats!

Welcome to our lwIP HTTP server!

This is a small test page, served by httpserver-netconn."; + +/** Serve one HTTP connection accepted in the http thread */ +static void +http_server_netconn_serve(struct netconn *conn) +{ + struct netbuf *inbuf; + char *buf; + u16_t buflen; + err_t err; + + /* Read the data from the port, blocking if nothing yet there. + We assume the request (the part we care about) is in one netbuf */ + err = netconn_recv(conn, &inbuf); + + if (err == ERR_OK) { + netbuf_data(inbuf, (void**)&buf, &buflen); + + /* Is this an HTTP GET command? (only check the first 5 chars, since + there are other formats for GET, and we're keeping it very simple )*/ + if (buflen>=5 && + buf[0]=='G' && + buf[1]=='E' && + buf[2]=='T' && + buf[3]==' ' && + buf[4]=='/' ) { + + /* Send the HTML header + * subtract 1 from the size, since we don't send the \0 in the string + * NETCONN_NOCOPY: our data is const static, so no need to copy it + */ + netconn_write(conn, http_html_hdr, sizeof(http_html_hdr)-1, NETCONN_NOCOPY); + + /* Send our HTML page */ + netconn_write(conn, http_index_html, sizeof(http_index_html)-1, NETCONN_NOCOPY); + } + } + /* Close the connection (server closes in HTTP) */ + netconn_close(conn); + + /* Delete the buffer (netconn_recv gives us ownership, + so we have to make sure to deallocate the buffer) */ + netbuf_delete(inbuf); +} + +/** The main function, never returns! */ +static void +http_server_netconn_thread(void *arg) +{ + struct netconn *conn, *newconn; + err_t err; + LWIP_UNUSED_ARG(arg); + + /* Create a new TCP connection handle */ + /* Bind to port 80 (HTTP) with default IP address */ +#if LWIP_IPV6 + conn = netconn_new(NETCONN_TCP_IPV6); + netconn_bind(conn, IP6_ADDR_ANY, 80); +#else /* LWIP_IPV6 */ + conn = netconn_new(NETCONN_TCP); + netconn_bind(conn, IP_ADDR_ANY, 80); +#endif /* LWIP_IPV6 */ + LWIP_ERROR("http_server: invalid conn", (conn != NULL), return;); + + /* Put the connection into LISTEN state */ + netconn_listen(conn); + + do { + err = netconn_accept(conn, &newconn); + if (err == ERR_OK) { + http_server_netconn_serve(newconn); + netconn_delete(newconn); + } + } while(err == ERR_OK); + LWIP_DEBUGF(HTTPD_DEBUG, + ("http_server_netconn_thread: netconn_accept received error %d, shutting down", + err)); + netconn_close(conn); + netconn_delete(conn); +} + +/** Initialize the HTTP server (start its thread) */ +void +http_server_netconn_init(void) +{ + sys_thread_new("http_server_netconn", http_server_netconn_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); +} + +#endif /* LWIP_NETCONN*/ diff --git a/middleware/lwip/contrib/apps/httpserver/httpserver-netconn.h b/middleware/lwip/contrib/apps/httpserver/httpserver-netconn.h new file mode 100644 index 0000000..d84b103 --- /dev/null +++ b/middleware/lwip/contrib/apps/httpserver/httpserver-netconn.h @@ -0,0 +1,6 @@ +#ifndef LWIP_HTTPSERVER_NETCONN_H +#define LWIP_HTTPSERVER_NETCONN_H + +void http_server_netconn_init(void); + +#endif /* LWIP_HTTPSERVER_NETCONN_H */ diff --git a/middleware/lwip/contrib/apps/netio/netio.c b/middleware/lwip/contrib/apps/netio/netio.c new file mode 100644 index 0000000..7d12ac8 --- /dev/null +++ b/middleware/lwip/contrib/apps/netio/netio.c @@ -0,0 +1,55 @@ +#include "netio.h" + +#include "lwip/opt.h" +#include "lwip/tcp.h" + +/* See http://www.nwlab.net/art/netio/netio.html to get the netio tool */ + +#if LWIP_TCP && LWIP_CALLBACK_API +static err_t +netio_recv(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err) +{ + LWIP_UNUSED_ARG(arg); + + if (err == ERR_OK && p != NULL) { + tcp_recved(pcb, p->tot_len); + pbuf_free(p); + } else { + pbuf_free(p); + } + + if (err == ERR_OK && p == NULL) { + tcp_arg(pcb, NULL); + tcp_sent(pcb, NULL); + tcp_recv(pcb, NULL); + tcp_close(pcb); + } + + return ERR_OK; +} + +static err_t +netio_accept(void *arg, struct tcp_pcb *pcb, err_t err) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(err); + + if (pcb != NULL) { + tcp_arg(pcb, NULL); + tcp_sent(pcb, NULL); + tcp_recv(pcb, netio_recv); + } + return ERR_OK; +} + +void +netio_init(void) +{ + struct tcp_pcb *pcb; + + pcb = tcp_new_ip_type(IPADDR_TYPE_ANY); + tcp_bind(pcb, IP_ANY_TYPE, 18767); + pcb = tcp_listen(pcb); + tcp_accept(pcb, netio_accept); +} +#endif /* LWIP_TCP && LWIP_CALLBACK_API */ diff --git a/middleware/lwip/contrib/apps/netio/netio.h b/middleware/lwip/contrib/apps/netio/netio.h new file mode 100644 index 0000000..11d7730 --- /dev/null +++ b/middleware/lwip/contrib/apps/netio/netio.h @@ -0,0 +1,6 @@ +#ifndef LWIP_NETIO_H +#define LWIP_NETIO_H + +void netio_init(void); + +#endif /* LWIP_NETIO_H */ diff --git a/middleware/lwip/contrib/apps/ping/ping.c b/middleware/lwip/contrib/apps/ping/ping.c new file mode 100644 index 0000000..40668da --- /dev/null +++ b/middleware/lwip/contrib/apps/ping/ping.c @@ -0,0 +1,397 @@ +/** + * @file + * Ping sender module + * + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +/** + * This is an example of a "ping" sender (with raw API and socket API). + * It can be used as a start point to maintain opened a network connection, or + * like a network "watchdog" for your device. + * + */ + +#include "lwip/opt.h" + +#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */ + +#include "ping.h" + +#include "lwip/mem.h" +#include "lwip/raw.h" +#include "lwip/icmp.h" +#include "lwip/netif.h" +#include "lwip/sys.h" +#include "lwip/timeouts.h" +#include "lwip/inet_chksum.h" +#include "lwip/prot/ip4.h" + +#if PING_USE_SOCKETS +#include "lwip/sockets.h" +#include "lwip/inet.h" +#include +#endif /* PING_USE_SOCKETS */ + + +/** + * PING_DEBUG: Enable debugging for PING. + */ +#ifndef PING_DEBUG +#define PING_DEBUG LWIP_DBG_ON +#endif + +/** ping receive timeout - in milliseconds */ +#ifndef PING_RCV_TIMEO +#define PING_RCV_TIMEO 1000 +#endif + +/** ping delay - in milliseconds */ +#ifndef PING_DELAY +#define PING_DELAY 1000 +#endif + +/** ping identifier - must fit on a u16_t */ +#ifndef PING_ID +#define PING_ID 0xAFAF +#endif + +/** ping additional data size to include in the packet */ +#ifndef PING_DATA_SIZE +#define PING_DATA_SIZE 32 +#endif + +/** ping result action - no default action */ +#ifndef PING_RESULT +#define PING_RESULT(ping_ok) +#endif + +/* ping variables */ +static const ip_addr_t* ping_target; +static u16_t ping_seq_num; +#ifdef LWIP_DEBUG +static u32_t ping_time; +#endif /* LWIP_DEBUG */ +#if !PING_USE_SOCKETS +static struct raw_pcb *ping_pcb; +#endif /* PING_USE_SOCKETS */ + +/** Prepare a echo ICMP request */ +static void +ping_prepare_echo( struct icmp_echo_hdr *iecho, u16_t len) +{ + size_t i; + size_t data_len = len - sizeof(struct icmp_echo_hdr); + + ICMPH_TYPE_SET(iecho, ICMP_ECHO); + ICMPH_CODE_SET(iecho, 0); + iecho->chksum = 0; + iecho->id = PING_ID; + iecho->seqno = lwip_htons(++ping_seq_num); + + /* fill the additional data buffer with some data */ + for(i = 0; i < data_len; i++) { + ((char*)iecho)[sizeof(struct icmp_echo_hdr) + i] = (char)i; + } + + iecho->chksum = inet_chksum(iecho, len); +} + +#if PING_USE_SOCKETS + +/* Ping using the socket ip */ +static err_t +ping_send(int s, const ip_addr_t *addr) +{ + int err; + struct icmp_echo_hdr *iecho; + struct sockaddr_storage to; + size_t ping_size = sizeof(struct icmp_echo_hdr) + PING_DATA_SIZE; + LWIP_ASSERT("ping_size is too big", ping_size <= 0xffff); + +#if LWIP_IPV6 + if(IP_IS_V6(addr) && !ip6_addr_isipv4mappedipv6(ip_2_ip6(addr))) { + /* todo: support ICMP6 echo */ + return ERR_VAL; + } +#endif /* LWIP_IPV6 */ + + iecho = (struct icmp_echo_hdr *)mem_malloc((mem_size_t)ping_size); + if (!iecho) { + return ERR_MEM; + } + + ping_prepare_echo(iecho, (u16_t)ping_size); + +#if LWIP_IPV4 + if(IP_IS_V4(addr)) { + struct sockaddr_in *to4 = (struct sockaddr_in*)&to; + to4->sin_len = sizeof(to4); + to4->sin_family = AF_INET; + inet_addr_from_ip4addr(&to4->sin_addr, ip_2_ip4(addr)); + } +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 + if(IP_IS_V6(addr)) { + struct sockaddr_in6 *to6 = (struct sockaddr_in6*)&to; + to6->sin6_len = sizeof(to6); + to6->sin6_family = AF_INET6; + inet6_addr_from_ip6addr(&to6->sin6_addr, ip_2_ip6(addr)); + } +#endif /* LWIP_IPV6 */ + + err = lwip_sendto(s, iecho, ping_size, 0, (struct sockaddr*)&to, sizeof(to)); + + mem_free(iecho); + + return (err ? ERR_OK : ERR_VAL); +} + +static void +ping_recv(int s) +{ + char buf[64]; + int len; + struct sockaddr_storage from; + int fromlen = sizeof(from); + + while((len = lwip_recvfrom(s, buf, sizeof(buf), 0, (struct sockaddr*)&from, (socklen_t*)&fromlen)) > 0) { + if (len >= (int)(sizeof(struct ip_hdr)+sizeof(struct icmp_echo_hdr))) { + ip_addr_t fromaddr; + memset(&fromaddr, 0, sizeof(fromaddr)); + +#if LWIP_IPV4 + if(from.ss_family == AF_INET) { + struct sockaddr_in *from4 = (struct sockaddr_in*)&from; + inet_addr_to_ip4addr(ip_2_ip4(&fromaddr), &from4->sin_addr); + IP_SET_TYPE_VAL(fromaddr, IPADDR_TYPE_V4); + } +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 + if(from.ss_family == AF_INET6) { + struct sockaddr_in6 *from6 = (struct sockaddr_in6*)&from; + inet6_addr_to_ip6addr(ip_2_ip6(&fromaddr), &from6->sin6_addr); + IP_SET_TYPE_VAL(fromaddr, IPADDR_TYPE_V6); + } +#endif /* LWIP_IPV6 */ + + LWIP_DEBUGF( PING_DEBUG, ("ping: recv ")); + ip_addr_debug_print_val(PING_DEBUG, fromaddr); + LWIP_DEBUGF( PING_DEBUG, (" %"U32_F" ms\n", (sys_now() - ping_time))); + + /* todo: support ICMP6 echo */ +#if LWIP_IPV4 + if (IP_IS_V4_VAL(fromaddr)) { + struct ip_hdr *iphdr; + struct icmp_echo_hdr *iecho; + + iphdr = (struct ip_hdr *)buf; + iecho = (struct icmp_echo_hdr *)(buf + (IPH_HL(iphdr) * 4)); + if ((iecho->id == PING_ID) && (iecho->seqno == lwip_htons(ping_seq_num))) { + /* do some ping result processing */ + PING_RESULT((ICMPH_TYPE(iecho) == ICMP_ER)); + return; + } else { + LWIP_DEBUGF( PING_DEBUG, ("ping: drop\n")); + } + } +#endif /* LWIP_IPV4 */ + } + fromlen = sizeof(from); + } + + if (len == 0) { + LWIP_DEBUGF( PING_DEBUG, ("ping: recv - %"U32_F" ms - timeout\n", (sys_now()-ping_time))); + } + + /* do some ping result processing */ + PING_RESULT(0); +} + +static void +ping_thread(void *arg) +{ + int s; + int ret; + +#if LWIP_SO_SNDRCVTIMEO_NONSTANDARD + int timeout = PING_RCV_TIMEO; +#else + struct timeval timeout; + timeout.tv_sec = PING_RCV_TIMEO/1000; + timeout.tv_usec = (PING_RCV_TIMEO%1000)*1000; +#endif + LWIP_UNUSED_ARG(arg); + +#if LWIP_IPV6 + if(IP_IS_V4(ping_target) || ip6_addr_isipv4mappedipv6(ip_2_ip6(ping_target))) { + s = lwip_socket(AF_INET6, SOCK_RAW, IP_PROTO_ICMP); + } else { + s = lwip_socket(AF_INET6, SOCK_RAW, IP6_NEXTH_ICMP6); + } +#else + s = lwip_socket(AF_INET, SOCK_RAW, IP_PROTO_ICMP); +#endif + if (s < 0) { + return; + } + + ret = lwip_setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout)); + LWIP_ASSERT("setting receive timeout failed", ret == 0); + LWIP_UNUSED_ARG(ret); + + while (1) { + if (ping_send(s, ping_target) == ERR_OK) { + LWIP_DEBUGF( PING_DEBUG, ("ping: send ")); + ip_addr_debug_print(PING_DEBUG, ping_target); + LWIP_DEBUGF( PING_DEBUG, ("\n")); + +#ifdef LWIP_DEBUG + ping_time = sys_now(); +#endif /* LWIP_DEBUG */ + ping_recv(s); + } else { + LWIP_DEBUGF( PING_DEBUG, ("ping: send ")); + ip_addr_debug_print(PING_DEBUG, ping_target); + LWIP_DEBUGF( PING_DEBUG, (" - error\n")); + } + sys_msleep(PING_DELAY); + } +} + +#else /* PING_USE_SOCKETS */ + +/* Ping using the raw ip */ +static u8_t +ping_recv(void *arg, struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *addr) +{ + struct icmp_echo_hdr *iecho; + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(addr); + LWIP_ASSERT("p != NULL", p != NULL); + + if ((p->tot_len >= (PBUF_IP_HLEN + sizeof(struct icmp_echo_hdr))) && + pbuf_remove_header(p, PBUF_IP_HLEN) == 0) { + iecho = (struct icmp_echo_hdr *)p->payload; + + if ((iecho->id == PING_ID) && (iecho->seqno == lwip_htons(ping_seq_num))) { + LWIP_DEBUGF( PING_DEBUG, ("ping: recv ")); + ip_addr_debug_print(PING_DEBUG, addr); + LWIP_DEBUGF( PING_DEBUG, (" %"U32_F" ms\n", (sys_now()-ping_time))); + + /* do some ping result processing */ + PING_RESULT(1); + pbuf_free(p); + return 1; /* eat the packet */ + } + /* not eaten, restore original packet */ + /* Changed to the "_force" version because of LPC zerocopy pbufs */ + pbuf_add_header_force(p, PBUF_IP_HLEN); + } + + return 0; /* don't eat the packet */ +} + +static void +ping_send(struct raw_pcb *raw, const ip_addr_t *addr) +{ + struct pbuf *p; + struct icmp_echo_hdr *iecho; + size_t ping_size = sizeof(struct icmp_echo_hdr) + PING_DATA_SIZE; + + LWIP_DEBUGF( PING_DEBUG, ("ping: send ")); + ip_addr_debug_print(PING_DEBUG, addr); + LWIP_DEBUGF( PING_DEBUG, ("\n")); + LWIP_ASSERT("ping_size <= 0xffff", ping_size <= 0xffff); + + p = pbuf_alloc(PBUF_IP, (u16_t)ping_size, PBUF_RAM); + if (!p) { + return; + } + if ((p->len == p->tot_len) && (p->next == NULL)) { + iecho = (struct icmp_echo_hdr *)p->payload; + + ping_prepare_echo(iecho, (u16_t)ping_size); + + raw_sendto(raw, p, addr); +#ifdef LWIP_DEBUG + ping_time = sys_now(); +#endif /* LWIP_DEBUG */ + } + pbuf_free(p); +} + +static void +ping_timeout(void *arg) +{ + struct raw_pcb *pcb = (struct raw_pcb*)arg; + + LWIP_ASSERT("ping_timeout: no pcb given!", pcb != NULL); + + ping_send(pcb, ping_target); + + sys_timeout(PING_DELAY, ping_timeout, pcb); +} + +static void +ping_raw_init(void) +{ + ping_pcb = raw_new(IP_PROTO_ICMP); + LWIP_ASSERT("ping_pcb != NULL", ping_pcb != NULL); + + raw_recv(ping_pcb, ping_recv, NULL); + raw_bind(ping_pcb, IP_ADDR_ANY); + sys_timeout(PING_DELAY, ping_timeout, ping_pcb); +} + +void +ping_send_now(void) +{ + LWIP_ASSERT("ping_pcb != NULL", ping_pcb != NULL); + ping_send(ping_pcb, ping_target); +} + +#endif /* PING_USE_SOCKETS */ + +void +ping_init(const ip_addr_t* ping_addr) +{ + ping_target = ping_addr; + +#if PING_USE_SOCKETS + sys_thread_new("ping_thread", ping_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); +#else /* PING_USE_SOCKETS */ + ping_raw_init(); +#endif /* PING_USE_SOCKETS */ +} + +#endif /* LWIP_RAW */ diff --git a/middleware/lwip/contrib/apps/ping/ping.h b/middleware/lwip/contrib/apps/ping/ping.h new file mode 100644 index 0000000..1f21c7b --- /dev/null +++ b/middleware/lwip/contrib/apps/ping/ping.h @@ -0,0 +1,19 @@ +#ifndef LWIP_PING_H +#define LWIP_PING_H + +#include "lwip/ip_addr.h" + +/** + * PING_USE_SOCKETS: Set to 1 to use sockets, otherwise the raw api is used + */ +#ifndef PING_USE_SOCKETS +#define PING_USE_SOCKETS LWIP_SOCKET +#endif + +void ping_init(const ip_addr_t* ping_addr); + +#if !PING_USE_SOCKETS +void ping_send_now(void); +#endif /* !PING_USE_SOCKETS */ + +#endif /* LWIP_PING_H */ diff --git a/middleware/lwip/contrib/apps/rtp/rtp.c b/middleware/lwip/contrib/apps/rtp/rtp.c new file mode 100644 index 0000000..4be6973 --- /dev/null +++ b/middleware/lwip/contrib/apps/rtp/rtp.c @@ -0,0 +1,308 @@ +/** + * @file + * RTP client/server module + * + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "lwip/opt.h" + +#if LWIP_SOCKET && LWIP_IGMP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/sys.h" +#include "lwip/sockets.h" + +#include "rtp.h" + +#include "rtpdata.h" + +#include + +/** This is an example of a "RTP" client/server based on a MPEG4 bitstream (with socket API). + */ + +/** + * RTP_DEBUG: Enable debugging for RTP. + */ +#ifndef RTP_DEBUG +#define RTP_DEBUG LWIP_DBG_ON +#endif + +/** RTP stream port */ +#ifndef RTP_STREAM_PORT +#define RTP_STREAM_PORT 4000 +#endif + +/** RTP stream multicast address as IPv4 address in "u32_t" format */ +#ifndef RTP_STREAM_ADDRESS +#define RTP_STREAM_ADDRESS inet_addr("232.0.0.0") +#endif + +/** RTP send delay - in milliseconds */ +#ifndef RTP_SEND_DELAY +#define RTP_SEND_DELAY 40 +#endif + +/** RTP receive timeout - in milliseconds */ +#ifndef RTP_RECV_TIMEOUT +#define RTP_RECV_TIMEOUT 2000 +#endif + +/** RTP stats display period - in received packets */ +#ifndef RTP_RECV_STATS +#define RTP_RECV_STATS 50 +#endif + +/** RTP macro to let the application process the data */ +#ifndef RTP_RECV_PROCESSING +#define RTP_RECV_PROCESSING(p,s) +#endif + +/** RTP packet/payload size */ +#define RTP_PACKET_SIZE 1500 +#define RTP_PAYLOAD_SIZE 1024 + +/** RTP header constants */ +#define RTP_VERSION 0x80 +#define RTP_TIMESTAMP_INCREMENT 3600 +#define RTP_SSRC 0 +#define RTP_PAYLOADTYPE 96 +#define RTP_MARKER_MASK 0x80 + +/** RTP message header */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct rtp_hdr { + PACK_STRUCT_FLD_8(u8_t version); + PACK_STRUCT_FLD_8(u8_t payloadtype); + PACK_STRUCT_FIELD(u16_t seqNum); + PACK_STRUCT_FIELD(u32_t timestamp); + PACK_STRUCT_FIELD(u32_t ssrc); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** RTP packets */ +static u8_t rtp_send_packet[RTP_PACKET_SIZE]; +static u8_t rtp_recv_packet[RTP_PACKET_SIZE]; + +/** + * RTP send packets + */ +static void +rtp_send_packets( int sock, struct sockaddr_in* to) +{ + struct rtp_hdr* rtphdr; + u8_t* rtp_payload; + size_t rtp_payload_size; + size_t rtp_data_index; + + /* prepare RTP packet */ + rtphdr = (struct rtp_hdr*)rtp_send_packet; + rtphdr->version = RTP_VERSION; + rtphdr->payloadtype = 0; + rtphdr->ssrc = PP_HTONL(RTP_SSRC); + rtphdr->timestamp = lwip_htonl(lwip_ntohl(rtphdr->timestamp) + RTP_TIMESTAMP_INCREMENT); + + /* send RTP stream packets */ + rtp_data_index = 0; + do { + rtp_payload = rtp_send_packet+sizeof(struct rtp_hdr); + rtp_payload_size = LWIP_MIN(RTP_PAYLOAD_SIZE, sizeof(rtp_data) - rtp_data_index); + + MEMCPY(rtp_payload, rtp_data + rtp_data_index, rtp_payload_size); + + /* set MARKER bit in RTP header on the last packet of an image */ + if ((rtp_data_index + rtp_payload_size) >= sizeof(rtp_data)) { + rtphdr->payloadtype = RTP_PAYLOADTYPE | RTP_MARKER_MASK; + } else { + rtphdr->payloadtype = RTP_PAYLOADTYPE; + } + + /* send RTP stream packet */ + if (lwip_sendto(sock, rtp_send_packet, sizeof(struct rtp_hdr) + rtp_payload_size, + 0, (struct sockaddr *)to, sizeof(struct sockaddr)) >= 0) { + rtphdr->seqNum = lwip_htons((u16_t)(lwip_ntohs(rtphdr->seqNum) + 1)); + rtp_data_index += rtp_payload_size; + } else { + LWIP_DEBUGF(RTP_DEBUG, ("rtp_sender: not sendto==%i\n", errno)); + } + }while (rtp_data_index < sizeof(rtp_data)); +} + +/** + * RTP send thread + */ +static void +rtp_send_thread(void *arg) +{ + int sock; + struct sockaddr_in local; + struct sockaddr_in to; + u32_t rtp_stream_address; + + LWIP_UNUSED_ARG(arg); + + /* initialize RTP stream address */ + rtp_stream_address = RTP_STREAM_ADDRESS; + + /* if we got a valid RTP stream address... */ + if (rtp_stream_address != 0) { + /* create new socket */ + sock = lwip_socket(AF_INET, SOCK_DGRAM, 0); + if (sock >= 0) { + /* prepare local address */ + memset(&local, 0, sizeof(local)); + local.sin_family = AF_INET; + local.sin_port = PP_HTONS(INADDR_ANY); + local.sin_addr.s_addr = PP_HTONL(INADDR_ANY); + + /* bind to local address */ + if (lwip_bind(sock, (struct sockaddr *)&local, sizeof(local)) == 0) { + /* prepare RTP stream address */ + memset(&to, 0, sizeof(to)); + to.sin_family = AF_INET; + to.sin_port = PP_HTONS(RTP_STREAM_PORT); + to.sin_addr.s_addr = rtp_stream_address; + + /* send RTP packets */ + memset(rtp_send_packet, 0, sizeof(rtp_send_packet)); + while (1) { + rtp_send_packets( sock, &to); + sys_msleep(RTP_SEND_DELAY); + } + } + + /* close the socket */ + lwip_close(sock); + } + } +} + +/** + * RTP recv thread + */ +static void +rtp_recv_thread(void *arg) +{ + int sock; + struct sockaddr_in local; + struct sockaddr_in from; + int fromlen; + struct ip_mreq ipmreq; + struct rtp_hdr* rtphdr; + u32_t rtp_stream_address; + int timeout; + int result; + int recvrtppackets = 0; + int lostrtppackets = 0; + u16_t lastrtpseq = 0; + + LWIP_UNUSED_ARG(arg); + + /* initialize RTP stream address */ + rtp_stream_address = RTP_STREAM_ADDRESS; + + /* if we got a valid RTP stream address... */ + if (rtp_stream_address != 0) { + /* create new socket */ + sock = lwip_socket(AF_INET, SOCK_DGRAM, 0); + if (sock >= 0) { + /* prepare local address */ + memset(&local, 0, sizeof(local)); + local.sin_family = AF_INET; + local.sin_port = PP_HTONS(RTP_STREAM_PORT); + local.sin_addr.s_addr = PP_HTONL(INADDR_ANY); + + /* bind to local address */ + if (lwip_bind(sock, (struct sockaddr *)&local, sizeof(local)) == 0) { + /* set recv timeout */ + timeout = RTP_RECV_TIMEOUT; + result = lwip_setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout)); + if (result) { + LWIP_DEBUGF(RTP_DEBUG, ("rtp_recv_thread: setsockopt(SO_RCVTIMEO) failed: errno=%d\n", errno)); + } + + /* prepare multicast "ip_mreq" struct */ + ipmreq.imr_multiaddr.s_addr = rtp_stream_address; + ipmreq.imr_interface.s_addr = PP_HTONL(INADDR_ANY); + + /* join multicast group */ + if (lwip_setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, &ipmreq, sizeof(ipmreq)) == 0) { + /* receive RTP packets */ + while(1) { + fromlen = sizeof(from); + result = lwip_recvfrom(sock, rtp_recv_packet, sizeof(rtp_recv_packet), 0, + (struct sockaddr *)&from, (socklen_t *)&fromlen); + if ((result > 0) && ((size_t)result >= sizeof(struct rtp_hdr))) { + size_t recved = (size_t)result; + rtphdr = (struct rtp_hdr *)rtp_recv_packet; + recvrtppackets++; + if ((lastrtpseq == 0) || ((lastrtpseq + 1) == lwip_ntohs(rtphdr->seqNum))) { + RTP_RECV_PROCESSING((rtp_recv_packet + sizeof(rtp_hdr)), (recved-sizeof(rtp_hdr))); + LWIP_UNUSED_ARG(recved); /* just in case... */ + } else { + lostrtppackets++; + } + lastrtpseq = lwip_ntohs(rtphdr->seqNum); + if ((recvrtppackets % RTP_RECV_STATS) == 0) { + LWIP_DEBUGF(RTP_DEBUG, ("rtp_recv_thread: recv %6i packet(s) / lost %4i packet(s) (%.4f%%)...\n", recvrtppackets, lostrtppackets, (lostrtppackets*100.0)/recvrtppackets)); + } + } else { + LWIP_DEBUGF(RTP_DEBUG, ("rtp_recv_thread: recv timeout...\n")); + } + } + + /* leave multicast group */ + /* TODO: this code is never reached + result = lwip_setsockopt(sock, IPPROTO_IP, IP_DROP_MEMBERSHIP, &ipmreq, sizeof(ipmreq)); + if (result) { + LWIP_DEBUGF(RTP_DEBUG, ("rtp_recv_thread: setsockopt(IP_DROP_MEMBERSHIP) failed: errno=%d\n", errno)); + }*/ + } + } + + /* close the socket */ + lwip_close(sock); + } + } +} + +void +rtp_init(void) +{ + sys_thread_new("rtp_send_thread", rtp_send_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); + sys_thread_new("rtp_recv_thread", rtp_recv_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); +} + +#endif /* LWIP_SOCKET && LWIP_IGMP */ diff --git a/middleware/lwip/contrib/apps/rtp/rtp.h b/middleware/lwip/contrib/apps/rtp/rtp.h new file mode 100644 index 0000000..c53d89b --- /dev/null +++ b/middleware/lwip/contrib/apps/rtp/rtp.h @@ -0,0 +1,8 @@ +#ifndef LWIP_RTP_H +#define LWIP_RTP_H + +#if LWIP_SOCKET && LWIP_IGMP +void rtp_init(void); +#endif /* LWIP_SOCKET && LWIP_IGMP */ + +#endif /* LWIP_RTP_H */ diff --git a/middleware/lwip/contrib/apps/rtp/rtpdata.h b/middleware/lwip/contrib/apps/rtp/rtpdata.h new file mode 100644 index 0000000..76ff344 --- /dev/null +++ b/middleware/lwip/contrib/apps/rtp/rtpdata.h @@ -0,0 +1,2040 @@ +const unsigned char rtp_data[] = { + 0x00, 0x00, 0x01, 0xb0, 0xf5, 0x00, 0x00, 0x01, + 0xb5, 0x09, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, + 0x01, 0x20, 0x00, 0x86, 0x84, 0x00, 0x67, 0x0c, + 0x2c, 0x10, 0x90, 0x51, 0x8f, 0x00, 0x00, 0x01, + 0xb2, 0x44, 0x69, 0x76, 0x58, 0x35, 0x30, 0x33, + 0x62, 0x31, 0x33, 0x39, 0x33, 0x70, 0x00, 0x00, + 0x01, 0xb2, 0x58, 0x76, 0x69, 0x44, 0x30, 0x30, + 0x33, 0x39, 0x00, 0x00, 0x01, 0xb6, 0x18, 0x60, + 0xab, 0x94, 0x03, 0xc0, 0xca, 0xc0, 0x3e, 0xd0, + 0x78, 0x4f, 0xf9, 0x44, 0x91, 0xe9, 0xfa, 0xc9, + 0xfe, 0xa1, 0xa4, 0xc1, 0x66, 0x03, 0x2e, 0x39, + 0x0c, 0x7e, 0x0e, 0xaa, 0x02, 0x92, 0xf8, 0xd5, + 0xec, 0xe2, 0x35, 0xb9, 0x35, 0x0c, 0xb3, 0x82, + 0xa6, 0xad, 0xd0, 0xd1, 0xca, 0xb8, 0xe8, 0x10, + 0x55, 0x78, 0x03, 0xc0, 0x38, 0x15, 0xba, 0xce, + 0xe2, 0xea, 0x00, 0xc3, 0x60, 0xb1, 0x70, 0xf4, + 0x14, 0x6c, 0x35, 0x4d, 0xe8, 0x5a, 0x1e, 0x58, + 0xdf, 0x03, 0x01, 0xfd, 0x2a, 0x45, 0x54, 0xca, + 0x0f, 0x05, 0x00, 0xbd, 0xd0, 0xcc, 0xb4, 0x90, + 0x4c, 0x24, 0x6b, 0x20, 0x30, 0x95, 0xf1, 0x2f, + 0xb4, 0xa7, 0x83, 0xdc, 0xce, 0x03, 0x05, 0x02, + 0x1a, 0x5d, 0x1a, 0x2c, 0xbf, 0x51, 0x28, 0x8b, + 0xd7, 0x6b, 0xdd, 0xf9, 0x44, 0xbb, 0x0e, 0x91, + 0x64, 0xb9, 0xa6, 0x33, 0xd3, 0x6e, 0x34, 0xa4, + 0xac, 0xac, 0x53, 0x0d, 0x79, 0xbe, 0xae, 0x5b, + 0x47, 0x2e, 0xde, 0x62, 0xa1, 0x53, 0xcd, 0x7d, + 0xfe, 0x66, 0xa1, 0x2b, 0x9c, 0xe1, 0xca, 0xbc, + 0xea, 0x84, 0x1c, 0x68, 0xff, 0xbb, 0x28, 0xa1, + 0x26, 0x18, 0x99, 0xb1, 0x4f, 0x68, 0x80, 0x28, + 0x0e, 0x20, 0xc3, 0xbf, 0x0f, 0x80, 0xf8, 0x90, + 0x3b, 0x1f, 0x16, 0xe4, 0xb0, 0x6f, 0x44, 0x16, + 0x38, 0xb8, 0xc3, 0x81, 0x22, 0xfa, 0xe3, 0x09, + 0xf6, 0x61, 0x6d, 0xef, 0x67, 0x56, 0x3b, 0x57, + 0xb5, 0x23, 0x03, 0x1f, 0x6d, 0x0d, 0xb9, 0x08, + 0xc6, 0x43, 0xba, 0xd1, 0x40, 0x5a, 0xe8, 0xca, + 0x9e, 0x17, 0x1f, 0x6d, 0x5d, 0x16, 0x98, 0xab, + 0xe6, 0x99, 0xf6, 0x37, 0xc6, 0x1b, 0xdc, 0xb9, + 0xb3, 0xfe, 0x9a, 0x4b, 0x1e, 0xec, 0xf9, 0x5f, + 0xb8, 0xc7, 0xfc, 0xbe, 0x6c, 0xd5, 0xf3, 0x9b, + 0x17, 0x8b, 0x89, 0x82, 0xff, 0x30, 0x19, 0x20, + 0x30, 0xe6, 0x29, 0x96, 0x75, 0x75, 0xeb, 0x00, + 0x3f, 0xa1, 0x20, 0x5b, 0x06, 0x11, 0x98, 0x1f, + 0xb2, 0xad, 0x3a, 0x59, 0xe6, 0x7d, 0x38, 0xa4, + 0xb1, 0x4f, 0xfe, 0xdf, 0x3a, 0x4b, 0xdb, 0x69, + 0xc3, 0x93, 0xcc, 0xdf, 0x5e, 0xf7, 0x2a, 0x38, + 0x2a, 0x89, 0x84, 0x80, 0x6c, 0x12, 0x44, 0x95, + 0x78, 0xd8, 0x7e, 0x3f, 0x4e, 0xcf, 0x3f, 0x39, + 0xba, 0x9f, 0xfa, 0x8f, 0x2f, 0x62, 0xfa, 0xf0, + 0xb6, 0x20, 0xa7, 0x06, 0x02, 0x3f, 0x28, 0x96, + 0x80, 0xf0, 0x99, 0x8e, 0x82, 0x15, 0x11, 0x87, + 0x35, 0xa4, 0xfd, 0x53, 0xcb, 0xcd, 0x68, 0x38, + 0xe8, 0xdb, 0x8d, 0xc2, 0x71, 0xbc, 0x65, 0x3e, + 0xac, 0x5b, 0x0d, 0xae, 0xc0, 0x3c, 0x77, 0xfe, + 0xe8, 0xde, 0x3c, 0xbd, 0xdb, 0xb3, 0x39, 0x09, + 0x56, 0x0a, 0xa2, 0xfe, 0x40, 0xd7, 0x6f, 0x56, + 0x07, 0x02, 0xec, 0xd6, 0xed, 0x06, 0x5e, 0x2f, + 0xb6, 0xce, 0xf1, 0x4f, 0x16, 0x88, 0x04, 0x41, + 0x79, 0x0e, 0x98, 0xbe, 0x54, 0x75, 0x1a, 0xd6, + 0x50, 0xcf, 0x82, 0x6a, 0xf7, 0xaf, 0x7f, 0xfb, + 0x6d, 0x88, 0x97, 0x24, 0x40, 0x68, 0xa0, 0x57, + 0x79, 0x57, 0xe9, 0x6b, 0xaa, 0xe5, 0xe4, 0x2b, + 0xaa, 0x14, 0x64, 0x90, 0x6c, 0x50, 0x4a, 0xe3, + 0x97, 0x43, 0xf6, 0x81, 0x90, 0xa9, 0xa6, 0xba, + 0xb1, 0x21, 0x12, 0x5f, 0xe0, 0xdf, 0x88, 0x86, + 0x03, 0x30, 0x94, 0xb2, 0x6d, 0xd2, 0xdc, 0x45, + 0x14, 0x54, 0x1d, 0xe8, 0x38, 0x8d, 0xbe, 0x8a, + 0xaf, 0x20, 0xa2, 0x3e, 0xa2, 0x5c, 0xc6, 0xae, + 0xe6, 0xc4, 0x48, 0xec, 0xea, 0xc7, 0x4e, 0x17, + 0xb2, 0x91, 0x52, 0xb4, 0xe9, 0x8b, 0x15, 0xfb, + 0x99, 0x7c, 0xda, 0xb8, 0xad, 0x57, 0x31, 0x5b, + 0x5b, 0x67, 0xaa, 0x1e, 0x93, 0x76, 0xa5, 0x25, + 0xd9, 0x0d, 0x70, 0xd8, 0xb9, 0x11, 0x34, 0xfd, + 0xaf, 0x0e, 0x0d, 0x42, 0x57, 0x97, 0x26, 0x06, + 0xdf, 0x29, 0x7e, 0x79, 0x72, 0x22, 0x36, 0xa5, + 0x9f, 0x6a, 0x16, 0x24, 0x6f, 0x10, 0x56, 0xec, + 0x5b, 0x46, 0x50, 0x94, 0x88, 0xc4, 0xfa, 0x9e, + 0xd8, 0x5b, 0xb7, 0x50, 0x72, 0x62, 0x25, 0xaa, + 0x39, 0x84, 0x69, 0xaa, 0xfc, 0xbf, 0x9b, 0x45, + 0xf7, 0xc5, 0x41, 0x97, 0x41, 0xc7, 0xac, 0x7f, + 0x68, 0x92, 0xab, 0x64, 0xaa, 0x46, 0x32, 0x84, + 0x77, 0x1b, 0xfc, 0xbc, 0x5a, 0x42, 0x28, 0xfa, + 0x3e, 0x55, 0xf4, 0xe9, 0x44, 0xac, 0xc5, 0x4a, + 0x6c, 0x93, 0xde, 0x03, 0x6d, 0xdc, 0xb8, 0x5b, + 0xb7, 0x83, 0x7e, 0xc2, 0xaa, 0x33, 0x70, 0x34, + 0x41, 0x46, 0x25, 0xa5, 0x6f, 0xdb, 0x96, 0x0f, + 0xd3, 0xab, 0xd4, 0x17, 0x65, 0x96, 0x0c, 0x1e, + 0x39, 0x4c, 0x9d, 0x90, 0x3f, 0x5b, 0x8d, 0xaa, + 0xce, 0xac, 0xa6, 0x50, 0xf0, 0x66, 0xb2, 0x30, + 0xce, 0x42, 0x61, 0xaa, 0xb6, 0x7e, 0xca, 0xbf, + 0xfd, 0xbf, 0xef, 0x51, 0xed, 0xdf, 0x95, 0x0b, + 0xa7, 0x34, 0x24, 0x13, 0x62, 0x44, 0x81, 0xdf, + 0x3a, 0x8e, 0x95, 0x91, 0x67, 0xd7, 0x57, 0x54, + 0x92, 0x1d, 0x79, 0xa3, 0x2a, 0xf3, 0x0c, 0x7a, + 0x12, 0xa8, 0x33, 0xf9, 0x05, 0x02, 0x7b, 0xef, + 0x12, 0x18, 0xab, 0x8b, 0x40, 0x38, 0x7e, 0x0c, + 0x1f, 0x04, 0x30, 0x62, 0xa8, 0xd5, 0xd9, 0x78, + 0xdd, 0x1c, 0xb4, 0x57, 0xc1, 0x83, 0xc4, 0x41, + 0x08, 0x72, 0x5c, 0xc2, 0xb6, 0xd3, 0xd4, 0x85, + 0x4a, 0x7e, 0x58, 0xc3, 0x19, 0xfa, 0xdd, 0x51, + 0x03, 0x85, 0x1d, 0xe9, 0x10, 0x5e, 0x8c, 0x8f, + 0x41, 0x03, 0xe9, 0xbc, 0xa8, 0xba, 0xeb, 0x73, + 0x7d, 0x85, 0x69, 0xc7, 0x3b, 0xd9, 0x49, 0x0b, + 0x39, 0x03, 0x12, 0x11, 0x8b, 0x72, 0x97, 0x62, + 0x5f, 0xfe, 0x59, 0x4d, 0xc0, 0x3a, 0xdf, 0xcb, + 0x3e, 0x80, 0x39, 0xd5, 0x7a, 0xb1, 0x45, 0x86, + 0x06, 0xf6, 0xb6, 0xda, 0x98, 0xa1, 0x41, 0xae, + 0x12, 0xd3, 0xd1, 0x71, 0x5a, 0xa5, 0x40, 0xc0, + 0x8a, 0x3f, 0x4e, 0xac, 0x78, 0x93, 0x55, 0x31, + 0xfc, 0xcf, 0x67, 0x93, 0x52, 0xc4, 0x53, 0x0d, + 0xdf, 0x49, 0xd7, 0x83, 0x00, 0x18, 0x4b, 0xcd, + 0x65, 0xaf, 0xb5, 0xd5, 0x6c, 0xc4, 0x14, 0xb7, + 0xdb, 0x9d, 0x06, 0x17, 0xca, 0xe1, 0x60, 0x07, + 0x6d, 0x57, 0xd0, 0xfb, 0x1a, 0xf5, 0xb2, 0x56, + 0xca, 0xea, 0x21, 0x77, 0x41, 0xc0, 0x46, 0xc8, + 0x85, 0xe3, 0x15, 0x6a, 0xdb, 0x80, 0x47, 0x6d, + 0x05, 0x44, 0x06, 0x04, 0xf6, 0x92, 0x24, 0xdb, + 0x9b, 0x6f, 0xfa, 0x8d, 0x72, 0x2d, 0x75, 0x7e, + 0x33, 0x9c, 0xe7, 0x06, 0xbb, 0x3d, 0xa4, 0xb7, + 0xee, 0x31, 0x46, 0x4b, 0x91, 0xe2, 0xb0, 0x54, + 0x5c, 0x78, 0x9e, 0x45, 0x90, 0xe4, 0x76, 0xbe, + 0xe1, 0x4c, 0xae, 0x89, 0x20, 0x6e, 0x77, 0x76, + 0x94, 0x63, 0x93, 0xaa, 0x62, 0x0e, 0x28, 0x7b, + 0xec, 0xc9, 0xc5, 0x25, 0x64, 0x5a, 0xe9, 0xcc, + 0x91, 0x1a, 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Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "shell.h" + +#include "lwip/opt.h" + +#if LWIP_NETCONN && LWIP_TCP + +#include +#include + +#include "lwip/mem.h" +#include "lwip/debug.h" +#include "lwip/def.h" +#include "lwip/api.h" +#include "lwip/stats.h" + +#if LWIP_SOCKET +#include "lwip/errno.h" +#include "lwip/if_api.h" +#endif + +#ifdef WIN32 +#define NEWLINE "\r\n" +#else /* WIN32 */ +#define NEWLINE "\n" +#endif /* WIN32 */ + +/** Define this to 1 if you want to echo back all received characters + * (e.g. so they are displayed on a remote telnet) + */ +#ifndef SHELL_ECHO +#define SHELL_ECHO 0 +#endif + +#define BUFSIZE 1024 +static unsigned char buffer[BUFSIZE]; + +struct command { + struct netconn *conn; + s8_t (* exec)(struct command *); + u8_t nargs; + char *args[10]; +}; + +#include +#include +#include + +#define ESUCCESS 0 +#define ESYNTAX -1 +#define ETOOFEW -2 +#define ETOOMANY -3 +#define ECLOSED -4 + +#define NCONNS 10 +static struct netconn *conns[NCONNS]; + +/* help_msg is split into 3 strings to prevent exceeding the C89 maximum length of 509 per string */ +static char help_msg1[] = "Available commands:"NEWLINE"\ +open [IP address] [TCP port]: opens a TCP connection to the specified address."NEWLINE"\ +lstn [TCP port]: sets up a server on the specified port."NEWLINE"\ +acpt [connection #]: waits for an incoming connection request."NEWLINE"\ +send [connection #] [message]: sends a message on a TCP connection."NEWLINE"\ +udpc [local UDP port] [IP address] [remote port]: opens a UDP \"connection\"."NEWLINE"\ +udpl [local UDP port] [IP address] [remote port]: opens a UDP-Lite \"connection\"."NEWLINE""; +static char help_msg2[] = "udpn [local UDP port] [IP address] [remote port]: opens a UDP \"connection\" without checksums."NEWLINE"\ +udpb [local port] [remote port]: opens a UDP broadcast \"connection\"."NEWLINE"\ +usnd [connection #] [message]: sends a message on a UDP connection."NEWLINE"\ +recv [connection #]: receives data on a TCP or UDP connection."NEWLINE"\ +clos [connection #]: closes a TCP or UDP connection."NEWLINE"\ +stat: prints out lwIP statistics."NEWLINE"\ +idxtoname [index]: outputs interface name from index."NEWLINE"\ +nametoidx [name]: outputs interface index from name."NEWLINE; +static char help_msg3[] = +"gethostnm [name]: outputs IP address of host."NEWLINE"\ +quit: quits"NEWLINE""; + +#if LWIP_STATS +static char padding_10spaces[] = " "; + +#define PROTOCOL_STATS (LINK_STATS && ETHARP_STATS && IPFRAG_STATS && IP_STATS && ICMP_STATS && UDP_STATS && TCP_STATS) + +#if PROTOCOL_STATS +static const char* shell_stat_proto_names[] = { +#if LINK_STATS + "LINK ", +#endif +#if ETHARP_STATS + "ETHARP ", +#endif +#if IPFRAG_STATS + "IP_FRAG ", +#endif +#if IP_STATS + "IP ", +#endif +#if ICMP_STATS + "ICMP ", +#endif +#if UDP_STATS + "UDP ", +#endif +#if TCP_STATS + "TCP ", +#endif + "last" +}; + +static struct stats_proto* shell_stat_proto_stats[] = { +#if LINK_STATS + &lwip_stats.link, +#endif +#if ETHARP_STATS + &lwip_stats.etharp, +#endif +#if IPFRAG_STATS + &lwip_stats.ip_frag, +#endif +#if IP_STATS + &lwip_stats.ip, +#endif +#if ICMP_STATS + &lwip_stats.icmp, +#endif +#if UDP_STATS + &lwip_stats.udp, +#endif +#if TCP_STATS + &lwip_stats.tcp, +#endif +}; +const size_t num_protostats = sizeof(shell_stat_proto_stats)/sizeof(struct stats_proto*); + +static const char *stat_msgs_proto[] = { + " * transmitted ", + " * received ", + " forwarded ", + " * dropped ", + " * checksum errors ", + " * length errors ", + " * memory errors ", + " routing errors ", + " protocol errors ", + " option errors ", + " * misc errors ", + " cache hits " +}; +#endif /* PROTOCOL_STATS */ +#endif /* LWIP_STATS */ + +/*-----------------------------------------------------------------------------------*/ +static void +sendstr(const char *str, struct netconn *conn) +{ + netconn_write(conn, (const void *)str, strlen(str), NETCONN_NOCOPY); +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_open(struct command *com) +{ + ip_addr_t ipaddr; + u16_t port; + int i; + err_t err; + long tmp; + + if (ipaddr_aton(com->args[0], &ipaddr) == -1) { + sendstr(strerror(errno), com->conn); + return ESYNTAX; + } + tmp = strtol(com->args[1], NULL, 10); + if((tmp < 0) || (tmp > 0xffff)) { + sendstr("Invalid port number."NEWLINE, com->conn); + return ESUCCESS; + } + port = (u16_t)tmp; + + /* Find the first unused connection in conns. */ + for(i = 0; i < NCONNS && conns[i] != NULL; i++); + + if (i == NCONNS) { + sendstr("No more connections available, sorry."NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Opening connection to ", com->conn); + netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY); + sendstr(":", com->conn); + netconn_write(com->conn, com->args[1], strlen(com->args[1]), NETCONN_COPY); + sendstr(NEWLINE, com->conn); + + conns[i] = netconn_new(NETCONN_TCP); + if (conns[i] == NULL) { + sendstr("Could not create connection identifier (out of memory)."NEWLINE, com->conn); + return ESUCCESS; + } + err = netconn_connect(conns[i], &ipaddr, port); + if (err != ERR_OK) { + fprintf(stderr, "error %s"NEWLINE, lwip_strerr(err)); + sendstr("Could not connect to remote host: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + netconn_delete(conns[i]); + conns[i] = NULL; + return ESUCCESS; + } + + sendstr("Opened connection, connection identifier is ", com->conn); + snprintf((char *)buffer, sizeof(buffer), "%d"NEWLINE, i); + netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY); + + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_lstn(struct command *com) +{ + u16_t port; + int i; + err_t err; + long tmp; + + tmp = strtol(com->args[0], NULL, 10); + if((tmp < 0) || (tmp > 0xffff)) { + sendstr("Invalid port number."NEWLINE, com->conn); + return ESUCCESS; + } + port = (u16_t)tmp; + + /* Find the first unused connection in conns. */ + for(i = 0; i < NCONNS && conns[i] != NULL; i++); + + if (i == NCONNS) { + sendstr("No more connections available, sorry."NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Opening a listening connection on port ", com->conn); + netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY); + sendstr(NEWLINE, com->conn); + + conns[i] = netconn_new(NETCONN_TCP); + if (conns[i] == NULL) { + sendstr("Could not create connection identifier (out of memory)."NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_bind(conns[i], IP_ADDR_ANY, port); + if (err != ERR_OK) { + netconn_delete(conns[i]); + conns[i] = NULL; + sendstr("Could not bind: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_listen(conns[i]); + if (err != ERR_OK) { + netconn_delete(conns[i]); + conns[i] = NULL; + sendstr("Could not listen: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Opened connection, connection identifier is ", com->conn); + snprintf((char *)buffer, sizeof(buffer), "%d"NEWLINE, i); + netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY); + + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_clos(struct command *com) +{ + int i; + err_t err; + + i = strtol(com->args[0], NULL, 10); + + if (i > NCONNS) { + sendstr("Connection identifier too high."NEWLINE, com->conn); + return ESUCCESS; + } + if (conns[i] == NULL) { + sendstr("Connection identifier not in use."NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_close(conns[i]); + if (err != ERR_OK) { + sendstr("Could not close connection: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Connection closed."NEWLINE, com->conn); + netconn_delete(conns[i]); + conns[i] = NULL; + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_acpt(struct command *com) +{ + int i, j; + err_t err; + + /* Find the first unused connection in conns. */ + for(j = 0; j < NCONNS && conns[j] != NULL; j++); + + if (j == NCONNS) { + sendstr("No more connections available, sorry."NEWLINE, com->conn); + return ESUCCESS; + } + + i = strtol(com->args[0], NULL, 10); + + if (i > NCONNS) { + sendstr("Connection identifier too high."NEWLINE, com->conn); + return ESUCCESS; + } + if (conns[i] == NULL) { + sendstr("Connection identifier not in use."NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_accept(conns[i], &conns[j]); + + if (err != ERR_OK) { + sendstr("Could not accept connection: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Accepted connection, connection identifier for new connection is ", com->conn); + snprintf((char *)buffer, sizeof(buffer), "%d"NEWLINE, j); + netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY); + + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +#if LWIP_STATS +static void +com_stat_write_mem(struct netconn *conn, struct stats_mem *elem, int i) +{ + u16_t len; + char buf[100]; + size_t slen; + +#ifdef LWIP_DEBUG + LWIP_UNUSED_ARG(i); + slen = strlen(elem->name); + netconn_write(conn, elem->name, slen, NETCONN_COPY); +#else /* LWIP_DEBUG */ + len = (u16_t)sprintf(buf, "%d", i); + slen = strlen(buf); + netconn_write(conn, buf, slen, NETCONN_COPY); +#endif /* LWIP_DEBUG */ + if(slen < 10) { + netconn_write(conn, padding_10spaces, 10-slen, NETCONN_COPY); + } + + len = (u16_t)sprintf(buf, " * available %"MEM_SIZE_F NEWLINE, elem->avail); + netconn_write(conn, buf, len, NETCONN_COPY); + len = (u16_t)sprintf(buf, " * used %"MEM_SIZE_F NEWLINE, elem->used); + netconn_write(conn, buf, len, NETCONN_COPY); + len = (u16_t)sprintf(buf, " * high water mark %"MEM_SIZE_F NEWLINE, elem->max); + netconn_write(conn, buf, len, NETCONN_COPY); + len = (u16_t)sprintf(buf, " * errors %"STAT_COUNTER_F NEWLINE, elem->err); + netconn_write(conn, buf, len, NETCONN_COPY); + len = (u16_t)sprintf(buf, " * illegal %"STAT_COUNTER_F NEWLINE, elem->illegal); + netconn_write(conn, buf, len, NETCONN_COPY); +} +static void +com_stat_write_sys(struct netconn *conn, struct stats_syselem *elem, const char *name) +{ + u16_t len; + char buf[100]; + size_t slen = strlen(name); + + netconn_write(conn, name, slen, NETCONN_COPY); + if(slen < 10) { + netconn_write(conn, padding_10spaces, 10-slen, NETCONN_COPY); + } + + len = (u16_t)sprintf(buf, " * used %"STAT_COUNTER_F NEWLINE, elem->used); + netconn_write(conn, buf, len, NETCONN_COPY); + len = (u16_t)sprintf(buf, " * high water mark %"STAT_COUNTER_F NEWLINE, elem->max); + netconn_write(conn, buf, len, NETCONN_COPY); + len = (u16_t)sprintf(buf, " * errors %"STAT_COUNTER_F NEWLINE, elem->err); + netconn_write(conn, buf, len, NETCONN_COPY); +} +static s8_t +com_stat(struct command *com) +{ +#if PROTOCOL_STATS || MEMP_STATS + size_t i; +#endif /* PROTOCOL_STATS || MEMP_STATS */ +#if PROTOCOL_STATS + size_t k; + char buf[100]; + u16_t len; + + /* protocol stats, @todo: add IGMP */ + for(i = 0; i < num_protostats; i++) { + size_t s = sizeof(struct stats_proto)/sizeof(STAT_COUNTER); + STAT_COUNTER *c = &shell_stat_proto_stats[i]->xmit; + LWIP_ASSERT("stats not in sync", s == sizeof(stat_msgs_proto)/sizeof(char*)); + netconn_write(com->conn, shell_stat_proto_names[i], strlen(shell_stat_proto_names[i]), NETCONN_COPY); + for(k = 0; k < s; k++) { + len = (u16_t)sprintf(buf, "%s%"STAT_COUNTER_F NEWLINE, stat_msgs_proto[k], c[k]); + netconn_write(com->conn, buf, len, NETCONN_COPY); + } + } +#endif /* PROTOCOL_STATS */ +#if MEM_STATS + com_stat_write_mem(com->conn, &lwip_stats.mem, -1); +#endif /* MEM_STATS */ +#if MEMP_STATS + for(i = 0; i < MEMP_MAX; i++) { + com_stat_write_mem(com->conn, lwip_stats.memp[i], -1); + } +#endif /* MEMP_STATS */ +#if SYS_STATS + com_stat_write_sys(com->conn, &lwip_stats.sys.sem, "SEM "); + com_stat_write_sys(com->conn, &lwip_stats.sys.mutex, "MUTEX "); + com_stat_write_sys(com->conn, &lwip_stats.sys.mbox, "MBOX "); +#endif /* SYS_STATS */ + + return ESUCCESS; +} +#endif +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_send(struct command *com) +{ + int i; + err_t err; + size_t len; + + i = strtol(com->args[0], NULL, 10); + + if (i > NCONNS) { + sendstr("Connection identifier too high."NEWLINE, com->conn); + return ESUCCESS; + } + + if (conns[i] == NULL) { + sendstr("Connection identifier not in use."NEWLINE, com->conn); + return ESUCCESS; + } + + len = strlen(com->args[1]); + com->args[1][len] = '\r'; + com->args[1][len + 1] = '\n'; + com->args[1][len + 2] = 0; + + err = netconn_write(conns[i], com->args[1], len + 3, NETCONN_COPY); + if (err != ERR_OK) { + sendstr("Could not send data: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Data enqueued for sending."NEWLINE, com->conn); + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_recv(struct command *com) +{ + int i; + err_t err; + struct netbuf *buf; + u16_t len; + + i = strtol(com->args[0], NULL, 10); + + if (i > NCONNS) { + sendstr("Connection identifier too high."NEWLINE, com->conn); + return ESUCCESS; + } + + if (conns[i] == NULL) { + sendstr("Connection identifier not in use."NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_recv(conns[i], &buf); + if (err == ERR_OK) { + + netbuf_copy(buf, buffer, BUFSIZE); + len = netbuf_len(buf); + sendstr("Reading from connection:"NEWLINE, com->conn); + netconn_write(com->conn, buffer, len, NETCONN_COPY); + netbuf_delete(buf); + } else { + sendstr("EOF."NEWLINE, com->conn); + } + err = netconn_err(conns[i]); + if (err != ERR_OK) { + sendstr("Could not receive data: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_udpc(struct command *com) +{ + ip_addr_t ipaddr; + u16_t lport, rport; + int i; + err_t err; + long tmp; + + tmp = strtol(com->args[0], NULL, 10); + if((tmp < 0) || (tmp > 0xffff)) { + sendstr("Invalid port number."NEWLINE, com->conn); + return ESUCCESS; + } + lport = (u16_t)tmp; + if (ipaddr_aton(com->args[1], &ipaddr) == -1) { + sendstr(strerror(errno), com->conn); + return ESYNTAX; + } + tmp = strtol(com->args[2], NULL, 10); + if((tmp < 0) || (tmp > 0xffff)) { + sendstr("Invalid port number."NEWLINE, com->conn); + return ESUCCESS; + } + rport = (u16_t)tmp; + + /* Find the first unused connection in conns. */ + for(i = 0; i < NCONNS && conns[i] != NULL; i++); + + if (i == NCONNS) { + sendstr("No more connections available, sorry."NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Setting up UDP connection from port ", com->conn); + netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY); + sendstr(" to ", com->conn); + netconn_write(com->conn, com->args[1], strlen(com->args[1]), NETCONN_COPY); + sendstr(":", com->conn); + netconn_write(com->conn, com->args[2], strlen(com->args[2]), NETCONN_COPY); + sendstr(NEWLINE, com->conn); + + conns[i] = netconn_new(NETCONN_UDP); + if (conns[i] == NULL) { + sendstr("Could not create connection identifier (out of memory)."NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_connect(conns[i], &ipaddr, rport); + if (err != ERR_OK) { + netconn_delete(conns[i]); + conns[i] = NULL; + sendstr("Could not connect to remote host: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_bind(conns[i], IP_ADDR_ANY, lport); + if (err != ERR_OK) { + netconn_delete(conns[i]); + conns[i] = NULL; + sendstr("Could not bind: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Connection set up, connection identifier is ", com->conn); + snprintf((char *)buffer, sizeof(buffer), "%d"NEWLINE, i); + netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY); + + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_udpl(struct command *com) +{ + ip_addr_t ipaddr; + u16_t lport, rport; + int i; + err_t err; + long tmp; + + tmp = strtol(com->args[0], NULL, 10); + if((tmp < 0) || (tmp > 0xffff)) { + sendstr("Invalid port number."NEWLINE, com->conn); + return ESUCCESS; + } + lport = (u16_t)tmp; + if (ipaddr_aton(com->args[1], &ipaddr) == -1) { + sendstr(strerror(errno), com->conn); + return ESYNTAX; + } + tmp = strtol(com->args[2], NULL, 10); + if((tmp < 0) || (tmp > 0xffff)) { + sendstr("Invalid port number."NEWLINE, com->conn); + return ESUCCESS; + } + rport = (u16_t)tmp; + + /* Find the first unused connection in conns. */ + for(i = 0; i < NCONNS && conns[i] != NULL; i++); + + if (i == NCONNS) { + sendstr("No more connections available, sorry."NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Setting up UDP-Lite connection from port ", com->conn); + netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY); + sendstr(" to ", com->conn); + netconn_write(com->conn, com->args[1], strlen(com->args[1]), NETCONN_COPY); + sendstr(":", com->conn); + netconn_write(com->conn, com->args[2], strlen(com->args[2]), NETCONN_COPY); + sendstr(NEWLINE, com->conn); + + conns[i] = netconn_new(NETCONN_UDPLITE); + if (conns[i] == NULL) { + sendstr("Could not create connection identifier (out of memory)."NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_connect(conns[i], &ipaddr, rport); + if (err != ERR_OK) { + netconn_delete(conns[i]); + conns[i] = NULL; + sendstr("Could not connect to remote host: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_bind(conns[i], IP_ADDR_ANY, lport); + if (err != ERR_OK) { + netconn_delete(conns[i]); + conns[i] = NULL; + sendstr("Could not bind: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Connection set up, connection identifier is ", com->conn); + snprintf((char *)buffer, sizeof(buffer), "%d"NEWLINE, i); + netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY); + + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_udpn(struct command *com) +{ + ip_addr_t ipaddr; + u16_t lport, rport; + int i; + err_t err; + long tmp; + + tmp = strtol(com->args[0], NULL, 10); + if((tmp < 0) || (tmp > 0xffff)) { + sendstr("Invalid port number."NEWLINE, com->conn); + return ESUCCESS; + } + lport = (u16_t)tmp; + if (ipaddr_aton(com->args[1], &ipaddr) == -1) { + sendstr(strerror(errno), com->conn); + return ESYNTAX; + } + tmp = strtol(com->args[2], NULL, 10); + if((tmp < 0) || (tmp > 0xffff)) { + sendstr("Invalid port number."NEWLINE, com->conn); + return ESUCCESS; + } + rport = (u16_t)tmp; + + /* Find the first unused connection in conns. */ + for(i = 0; i < NCONNS && conns[i] != NULL; i++); + + if (i == NCONNS) { + sendstr("No more connections available, sorry."NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Setting up UDP connection without checksums from port ", com->conn); + netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY); + sendstr(" to ", com->conn); + netconn_write(com->conn, com->args[1], strlen(com->args[1]), NETCONN_COPY); + sendstr(":", com->conn); + netconn_write(com->conn, com->args[2], strlen(com->args[2]), NETCONN_COPY); + sendstr(NEWLINE, com->conn); + + conns[i] = netconn_new(NETCONN_UDPNOCHKSUM); + if (conns[i] == NULL) { + sendstr("Could not create connection identifier (out of memory)."NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_connect(conns[i], &ipaddr, rport); + if (err != ERR_OK) { + netconn_delete(conns[i]); + conns[i] = NULL; + sendstr("Could not connect to remote host: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_bind(conns[i], IP_ADDR_ANY, lport); + if (err != ERR_OK) { + netconn_delete(conns[i]); + conns[i] = NULL; + sendstr("Could not bind: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Connection set up, connection identifier is ", com->conn); + snprintf((char *)buffer, sizeof(buffer), "%d"NEWLINE, i); + netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY); + + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_udpb(struct command *com) +{ + ip_addr_t ipaddr; +#if LWIP_IPV4 + u16_t lport; +#endif /* LWIP_IPV4 */ + u16_t rport; + int i; + err_t err; + long tmp; + + tmp = strtol(com->args[0], NULL, 10); + if((tmp < 0) || (tmp > 0xffff)) { + sendstr("Invalid port number."NEWLINE, com->conn); + return ESUCCESS; + } +#if LWIP_IPV4 + lport = (u16_t)tmp; +#endif /* LWIP_IPV4 */ + if (ipaddr_aton(com->args[1], &ipaddr) == -1) { + sendstr(strerror(errno), com->conn); + return ESYNTAX; + } + tmp = strtol(com->args[2], NULL, 10); + if((tmp < 0) || (tmp > 0xffff)) { + sendstr("Invalid port number."NEWLINE, com->conn); + return ESUCCESS; + } + rport = (u16_t)tmp; + + /* Find the first unused connection in conns. */ + for(i = 0; i < NCONNS && conns[i] != NULL; i++); + + if (i == NCONNS) { + sendstr("No more connections available, sorry."NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Setting up UDP broadcast connection from port ", com->conn); + netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY); + sendstr(" to ", com->conn); + netconn_write(com->conn, com->args[1], strlen(com->args[1]), NETCONN_COPY); + sendstr(NEWLINE, com->conn); + + conns[i] = netconn_new(NETCONN_UDP); + if (conns[i] == NULL) { + sendstr("Could not create connection identifier (out of memory)."NEWLINE, com->conn); + return ESUCCESS; + } + + err = netconn_connect(conns[i], &ipaddr, rport); + if (err != ERR_OK) { + netconn_delete(conns[i]); + conns[i] = NULL; + sendstr("Could not connect to remote host: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + +#if LWIP_IPV4 + if (IP_IS_V6_VAL(ipaddr)) { + err = netconn_bind(conns[i], &ip_addr_broadcast, lport); + if (err != ERR_OK) { + netconn_delete(conns[i]); + conns[i] = NULL; + sendstr("Could not bind: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + } +#endif /* LWIP_IPV4 */ + + sendstr("Connection set up, connection identifier is ", com->conn); + snprintf((char *)buffer, sizeof(buffer), "%d"NEWLINE, i); + netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY); + + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_usnd(struct command *com) +{ + long i; + err_t err; + struct netbuf *buf; + char *mem; + u16_t len; + size_t tmp; + + i = strtol(com->args[0], NULL, 10); + + if (i > NCONNS) { + sendstr("Connection identifier too high."NEWLINE, com->conn); + return ESUCCESS; + } + + if (conns[i] == NULL) { + sendstr("Connection identifier not in use."NEWLINE, com->conn); + return ESUCCESS; + } + tmp = strlen(com->args[1]) + 1; + if (tmp > 0xffff) { + sendstr("Invalid length."NEWLINE, com->conn); + return ESUCCESS; + } + len = (u16_t)tmp; + + buf = netbuf_new(); + mem = (char *)netbuf_alloc(buf, len); + if (mem == NULL) { + sendstr("Could not allocate memory for sending."NEWLINE, com->conn); + return ESUCCESS; + } + strncpy(mem, com->args[1], len); + err = netconn_send(conns[i], buf); + netbuf_delete(buf); + if (err != ERR_OK) { + sendstr("Could not send data: ", com->conn); +#ifdef LWIP_DEBUG + sendstr(lwip_strerr(err), com->conn); +#else + sendstr("(debugging must be turned on for error message to appear)", com->conn); +#endif /* LWIP_DEBUG */ + sendstr(NEWLINE, com->conn); + return ESUCCESS; + } + + sendstr("Data sent."NEWLINE, com->conn); + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +#if LWIP_SOCKET +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_idxtoname(struct command *com) +{ + long i = strtol(com->args[0], NULL, 10); + + if (lwip_if_indextoname((unsigned int)i, (char *)buffer)) { + netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY); + sendstr(NEWLINE, com->conn); + } else { + snprintf((char *)buffer, sizeof(buffer), "if_indextoname() failed: %d"NEWLINE, errno); + netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY); + } + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_nametoidx(struct command *com) +{ + unsigned int idx = lwip_if_nametoindex(com->args[0]); + + if (idx) { + snprintf((char *)buffer, sizeof(buffer), "%u"NEWLINE, idx); + netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY); + } else { + sendstr("No interface found"NEWLINE, com->conn); + } + return ESUCCESS; +} +#endif /* LWIP_SOCKET */ +/*-----------------------------------------------------------------------------------*/ +#if LWIP_DNS +static s8_t +com_gethostbyname(struct command *com) +{ + ip_addr_t addr; + err_t err = netconn_gethostbyname(com->args[0], &addr); + + if (err == ERR_OK) { + if (ipaddr_ntoa_r(&addr, (char *)buffer, sizeof(buffer))) { + sendstr("Host found: ", com->conn); + sendstr((char *)buffer, com->conn); + sendstr(NEWLINE, com->conn); + } else { + sendstr("ipaddr_ntoa_r failed", com->conn); + } + } else { + sendstr("No host found"NEWLINE, com->conn); + } + return ESUCCESS; +} +#endif /* LWIP_DNS */ +/*-----------------------------------------------------------------------------------*/ +static s8_t +com_help(struct command *com) +{ + sendstr(help_msg1, com->conn); + sendstr(help_msg2, com->conn); + sendstr(help_msg3, com->conn); + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static s8_t +parse_command(struct command *com, u32_t len) +{ + u16_t i; + u16_t bufp; + + if (strncmp((const char *)buffer, "open", 4) == 0) { + com->exec = com_open; + com->nargs = 2; + } else if (strncmp((const char *)buffer, "lstn", 4) == 0) { + com->exec = com_lstn; + com->nargs = 1; + } else if (strncmp((const char *)buffer, "acpt", 4) == 0) { + com->exec = com_acpt; + com->nargs = 1; + } else if (strncmp((const char *)buffer, "clos", 4) == 0) { + com->exec = com_clos; + com->nargs = 1; +#if LWIP_STATS + } else if (strncmp((const char *)buffer, "stat", 4) == 0) { + com->exec = com_stat; + com->nargs = 0; +#endif + } else if (strncmp((const char *)buffer, "send", 4) == 0) { + com->exec = com_send; + com->nargs = 2; + } else if (strncmp((const char *)buffer, "recv", 4) == 0) { + com->exec = com_recv; + com->nargs = 1; + } else if (strncmp((const char *)buffer, "udpc", 4) == 0) { + com->exec = com_udpc; + com->nargs = 3; + } else if (strncmp((const char *)buffer, "udpb", 4) == 0) { + com->exec = com_udpb; + com->nargs = 2; + } else if (strncmp((const char *)buffer, "udpl", 4) == 0) { + com->exec = com_udpl; + com->nargs = 3; + } else if (strncmp((const char *)buffer, "udpn", 4) == 0) { + com->exec = com_udpn; + com->nargs = 3; + } else if (strncmp((const char *)buffer, "usnd", 4) == 0) { + com->exec = com_usnd; + com->nargs = 2; +#if LWIP_SOCKET + } else if (strncmp((const char *)buffer, "idxtoname", 9) == 0) { + com->exec = com_idxtoname; + com->nargs = 1; + } else if (strncmp((const char *)buffer, "nametoidx", 9) == 0) { + com->exec = com_nametoidx; + com->nargs = 1; +#endif /* LWIP_SOCKET */ +#if LWIP_DNS + } else if (strncmp((const char *)buffer, "gethostnm", 9) == 0) { + com->exec = com_gethostbyname; + com->nargs = 1; +#endif /* LWIP_DNS */ + } else if (strncmp((const char *)buffer, "help", 4) == 0) { + com->exec = com_help; + com->nargs = 0; + } else if (strncmp((const char *)buffer, "quit", 4) == 0) { + printf("quit"NEWLINE); + return ECLOSED; + } else { + return ESYNTAX; + } + + if (com->nargs == 0) { + return ESUCCESS; + } + bufp = 0; + for(; bufp < len && buffer[bufp] != ' '; bufp++); + for(i = 0; i < 10; i++) { + for(; bufp < len && buffer[bufp] == ' '; bufp++); + if (buffer[bufp] == '\r' || + buffer[bufp] == '\n') { + buffer[bufp] = 0; + if (i < com->nargs - 1) { + return ETOOFEW; + } + if (i > com->nargs - 1) { + return ETOOMANY; + } + break; + } + if (bufp > len) { + return ETOOFEW; + } + com->args[i] = (char *)&buffer[bufp]; + for(; bufp < len && buffer[bufp] != ' ' && buffer[bufp] != '\r' && + buffer[bufp] != '\n'; bufp++) { + if (buffer[bufp] == '\\') { + buffer[bufp] = ' '; + } + } + if (bufp > len) { + return ESYNTAX; + } + buffer[bufp] = 0; + bufp++; + if (i == com->nargs - 1) { + break; + } + + } + + return ESUCCESS; +} +/*-----------------------------------------------------------------------------------*/ +static void +shell_error(s8_t err, struct netconn *conn) +{ + switch (err) { + case ESYNTAX: + sendstr("## Syntax error"NEWLINE, conn); + break; + case ETOOFEW: + sendstr("## Too few arguments to command given"NEWLINE, conn); + break; + case ETOOMANY: + sendstr("## Too many arguments to command given"NEWLINE, conn); + break; + case ECLOSED: + sendstr("## Connection closed"NEWLINE, conn); + break; + default: + /* unknown error, don't assert here */ + break; + } +} +/*-----------------------------------------------------------------------------------*/ +static void +prompt(struct netconn *conn) +{ + sendstr("> ", conn); +} +/*-----------------------------------------------------------------------------------*/ +static void +shell_main(struct netconn *conn) +{ + struct pbuf *p; + u16_t len = 0, cur_len; + struct command com; + s8_t err; + int i; + err_t ret; +#if SHELL_ECHO + void *echomem; +#endif /* SHELL_ECHO */ + + do { + ret = netconn_recv_tcp_pbuf(conn, &p); + if (ret == ERR_OK) { + pbuf_copy_partial(p, &buffer[len], (u16_t)(BUFSIZE - len), 0); + cur_len = p->tot_len; + len = (u16_t)(len + cur_len); + if ((len < cur_len) || (len > BUFSIZE)) { + len = BUFSIZE; + } +#if SHELL_ECHO + echomem = mem_malloc(cur_len); + if (echomem != NULL) { + pbuf_copy_partial(p, echomem, cur_len, 0); + netconn_write(conn, echomem, cur_len, NETCONN_COPY); + mem_free(echomem); + } +#endif /* SHELL_ECHO */ + pbuf_free(p); + if (((len > 0) && ((buffer[len-1] == '\r') || (buffer[len-1] == '\n'))) || + (len >= BUFSIZE)) { + if (buffer[0] != 0xff && + buffer[1] != 0xfe) { + err = parse_command(&com, len); + if (err == ESUCCESS) { + com.conn = conn; + err = com.exec(&com); + } + if (err == ECLOSED) { + printf("Closed"NEWLINE); + shell_error(err, conn); + goto close; + } + if (err != ESUCCESS) { + shell_error(err, conn); + } + } else { + sendstr(NEWLINE NEWLINE + "lwIP simple interactive shell."NEWLINE + "(c) Copyright 2001, Swedish Institute of Computer Science."NEWLINE + "Written by Adam Dunkels."NEWLINE + "For help, try the \"help\" command."NEWLINE, conn); + } + if (ret == ERR_OK) { + prompt(conn); + } + len = 0; + } + } + } while (ret == ERR_OK); + printf("err %s"NEWLINE, lwip_strerr(ret)); + +close: + netconn_close(conn); + + for(i = 0; i < NCONNS; i++) { + if (conns[i] != NULL) { + netconn_delete(conns[i]); + } + conns[i] = NULL; + } +} +/*-----------------------------------------------------------------------------------*/ +static void +shell_thread(void *arg) +{ + struct netconn *conn, *newconn; + err_t err; + LWIP_UNUSED_ARG(arg); + +#if LWIP_IPV6 + conn = netconn_new(NETCONN_TCP_IPV6); + LWIP_ERROR("shell: invalid conn", (conn != NULL), return;); + err = netconn_bind(conn, IP6_ADDR_ANY, 23); +#else /* LWIP_IPV6 */ + conn = netconn_new(NETCONN_TCP); + LWIP_ERROR("shell: invalid conn", (conn != NULL), return;); + err = netconn_bind(conn, IP_ADDR_ANY, 23); +#endif /* LWIP_IPV6 */ + LWIP_ERROR("shell: netconn_bind failed", (err == ERR_OK), netconn_delete(conn); return;); + err = netconn_listen(conn); + LWIP_ERROR("shell: netconn_listen failed", (err == ERR_OK), netconn_delete(conn); return;); + + while (1) { + err = netconn_accept(conn, &newconn); + if (err == ERR_OK) { + shell_main(newconn); + netconn_delete(newconn); + } + } +} +/*-----------------------------------------------------------------------------------*/ +void +shell_init(void) +{ + sys_thread_new("shell_thread", shell_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); +} + +#endif /* LWIP_NETCONN && LWIP_TCP */ diff --git a/middleware/lwip/contrib/apps/shell/shell.h b/middleware/lwip/contrib/apps/shell/shell.h new file mode 100644 index 0000000..1ba9d19 --- /dev/null +++ b/middleware/lwip/contrib/apps/shell/shell.h @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_SHELL_H +#define LWIP_SHELL_H + +void shell_init(void); + +#endif /* LWIP_SHELL_H */ diff --git a/middleware/lwip/contrib/apps/socket_examples/socket_examples.c b/middleware/lwip/contrib/apps/socket_examples/socket_examples.c new file mode 100644 index 0000000..e7af5ee --- /dev/null +++ b/middleware/lwip/contrib/apps/socket_examples/socket_examples.c @@ -0,0 +1,680 @@ + +#include "socket_examples.h" + +#include "lwip/opt.h" + +#if LWIP_SOCKET && (LWIP_IPV4 || LWIP_IPV6) + +#include "lwip/sockets.h" +#include "lwip/sys.h" + +#include +#include + +#ifndef SOCK_TARGET_HOST4 +#define SOCK_TARGET_HOST4 "192.168.0.1" +#endif + +#ifndef SOCK_TARGET_HOST6 +#define SOCK_TARGET_HOST6 "FE80::12:34FF:FE56:78AB" +#endif + +#ifndef SOCK_TARGET_PORT +#define SOCK_TARGET_PORT 80 +#endif + +#ifndef SOCK_TARGET_MAXHTTPPAGESIZE +#define SOCK_TARGET_MAXHTTPPAGESIZE 1024 +#endif + +#ifndef SOCKET_EXAMPLES_RUN_PARALLEL +#define SOCKET_EXAMPLES_RUN_PARALLEL 0 +#endif + +const u8_t cmpbuf[8] = {0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab}; + +/* a helper struct to ensure memory before/after fd_set is not touched */ +typedef struct _xx +{ + u8_t buf1[8]; + fd_set readset; + u8_t buf2[8]; + fd_set writeset; + u8_t buf3[8]; + fd_set errset; + u8_t buf4[8]; +} fdsets; + +#define INIT_FDSETS(sets) do { \ + memset((sets)->buf1, 0xab, 8); \ + memset((sets)->buf2, 0xab, 8); \ + memset((sets)->buf3, 0xab, 8); \ + memset((sets)->buf4, 0xab, 8); \ +}while(0) + +#define CHECK_FDSETS(sets) do { \ + LWIP_ASSERT("buf1 fail", !memcmp((sets)->buf1, cmpbuf, 8)); \ + LWIP_ASSERT("buf2 fail", !memcmp((sets)->buf2, cmpbuf, 8)); \ + LWIP_ASSERT("buf3 fail", !memcmp((sets)->buf3, cmpbuf, 8)); \ + LWIP_ASSERT("buf4 fail", !memcmp((sets)->buf4, cmpbuf, 8)); \ +}while(0) + +static ip_addr_t dstaddr; + +/** This is an example function that tests + blocking- and nonblocking connect. */ +static void +sockex_nonblocking_connect(void *arg) +{ +#if LWIP_SOCKET_SELECT + int s; + int ret; + int opt; +#if LWIP_IPV6 + struct sockaddr_in6 addr; +#else /* LWIP_IPV6 */ + struct sockaddr_in addr; +#endif /* LWIP_IPV6 */ + fdsets sets; + struct timeval tv; + u32_t ticks_a, ticks_b; + int err; + const ip_addr_t *ipaddr = (const ip_addr_t*)arg; + struct pollfd fds; + INIT_FDSETS(&sets); + + /* set up address to connect to */ + memset(&addr, 0, sizeof(addr)); +#if LWIP_IPV6 + addr.sin6_len = sizeof(addr); + addr.sin6_family = AF_INET6; + addr.sin6_port = PP_HTONS(SOCK_TARGET_PORT); + inet6_addr_from_ip6addr(&addr.sin6_addr, ip_2_ip6(ipaddr)); +#else /* LWIP_IPV6 */ + addr.sin_len = sizeof(addr); + addr.sin_family = AF_INET; + addr.sin_port = PP_HTONS(SOCK_TARGET_PORT); + inet_addr_from_ip4addr(&addr.sin_addr, ip_2_ip4(ipaddr)); +#endif /* LWIP_IPV6 */ + + /* first try blocking: */ + + /* create the socket */ +#if LWIP_IPV6 + s = lwip_socket(AF_INET6, SOCK_STREAM, 0); +#else /* LWIP_IPV6 */ + s = lwip_socket(AF_INET, SOCK_STREAM, 0); +#endif /* LWIP_IPV6 */ + LWIP_ASSERT("s >= 0", s >= 0); + + /* connect */ + ret = lwip_connect(s, (struct sockaddr*)&addr, sizeof(addr)); + /* should succeed */ + LWIP_ASSERT("ret == 0", ret == 0); + + /* write something */ + ret = lwip_write(s, "test", 4); + LWIP_ASSERT("ret == 4", ret == 4); + + /* close */ + ret = lwip_close(s); + LWIP_ASSERT("ret == 0", ret == 0); + + /* now try nonblocking and close before being connected */ + + /* create the socket */ +#if LWIP_IPV6 + s = lwip_socket(AF_INET6, SOCK_STREAM, 0); +#else /* LWIP_IPV6 */ + s = lwip_socket(AF_INET, SOCK_STREAM, 0); +#endif /* LWIP_IPV6 */ + LWIP_ASSERT("s >= 0", s >= 0); + /* nonblocking */ + opt = lwip_fcntl(s, F_GETFL, 0); + LWIP_ASSERT("ret != -1", ret != -1); + opt |= O_NONBLOCK; + ret = lwip_fcntl(s, F_SETFL, opt); + LWIP_ASSERT("ret != -1", ret != -1); + /* connect */ + ret = lwip_connect(s, (struct sockaddr*)&addr, sizeof(addr)); + /* should have an error: "inprogress" */ + LWIP_ASSERT("ret == -1", ret == -1); + err = errno; + LWIP_ASSERT("errno == EINPROGRESS", err == EINPROGRESS); + /* close */ + ret = lwip_close(s); + LWIP_ASSERT("ret == 0", ret == 0); + /* try to close again, should fail with EBADF */ + ret = lwip_close(s); + LWIP_ASSERT("ret == -1", ret == -1); + err = errno; + LWIP_ASSERT("errno == EBADF", err == EBADF); + printf("closing socket in nonblocking connect succeeded\n"); + + /* now try nonblocking, connect should succeed: + this test only works if it is fast enough, i.e. no breakpoints, please! */ + + /* create the socket */ +#if LWIP_IPV6 + s = lwip_socket(AF_INET6, SOCK_STREAM, 0); +#else /* LWIP_IPV6 */ + s = lwip_socket(AF_INET, SOCK_STREAM, 0); +#endif /* LWIP_IPV6 */ + LWIP_ASSERT("s >= 0", s >= 0); + + /* nonblocking */ + opt = 1; + ret = lwip_ioctl(s, FIONBIO, &opt); + LWIP_ASSERT("ret == 0", ret == 0); + + /* connect */ + ret = lwip_connect(s, (struct sockaddr*)&addr, sizeof(addr)); + /* should have an error: "inprogress" */ + LWIP_ASSERT("ret == -1", ret == -1); + err = errno; + LWIP_ASSERT("errno == EINPROGRESS", err == EINPROGRESS); + + /* write should fail, too */ + ret = lwip_write(s, "test", 4); + LWIP_ASSERT("ret == -1", ret == -1); + err = errno; + LWIP_ASSERT("errno == EINPROGRESS", err == EINPROGRESS); + + CHECK_FDSETS(&sets); + FD_ZERO(&sets.readset); + CHECK_FDSETS(&sets); + FD_SET(s, &sets.readset); + CHECK_FDSETS(&sets); + FD_ZERO(&sets.writeset); + CHECK_FDSETS(&sets); + FD_SET(s, &sets.writeset); + CHECK_FDSETS(&sets); + FD_ZERO(&sets.errset); + CHECK_FDSETS(&sets); + FD_SET(s, &sets.errset); + CHECK_FDSETS(&sets); + tv.tv_sec = 0; + tv.tv_usec = 0; + /* select without waiting should fail */ + ret = lwip_select(s + 1, &sets.readset, &sets.writeset, &sets.errset, &tv); + CHECK_FDSETS(&sets); + LWIP_ASSERT("ret == 0", ret == 0); + LWIP_ASSERT("!FD_ISSET(s, &writeset)", !FD_ISSET(s, &sets.writeset)); + LWIP_ASSERT("!FD_ISSET(s, &readset)", !FD_ISSET(s, &sets.readset)); + LWIP_ASSERT("!FD_ISSET(s, &errset)", !FD_ISSET(s, &sets.errset)); + + fds.fd = s; + fds.events = POLLIN|POLLOUT; + fds.revents = 0; + ret = lwip_poll(&fds, 1, 0); + LWIP_ASSERT("ret == 0", ret == 0); + LWIP_ASSERT("fds.revents == 0", fds.revents == 0); + + FD_ZERO(&sets.readset); + FD_SET(s, &sets.readset); + FD_ZERO(&sets.writeset); + FD_SET(s, &sets.writeset); + FD_ZERO(&sets.errset); + FD_SET(s, &sets.errset); + ticks_a = sys_now(); + /* select with waiting should succeed */ + ret = lwip_select(s + 1, &sets.readset, &sets.writeset, &sets.errset, NULL); + ticks_b = sys_now(); + LWIP_ASSERT("ret == 1", ret == 1); + LWIP_ASSERT("FD_ISSET(s, &writeset)", FD_ISSET(s, &sets.writeset)); + LWIP_ASSERT("!FD_ISSET(s, &readset)", !FD_ISSET(s, &sets.readset)); + LWIP_ASSERT("!FD_ISSET(s, &errset)", !FD_ISSET(s, &sets.errset)); + + fds.fd = s; + fds.events = POLLIN|POLLOUT; + fds.revents = 0; + ret = lwip_poll(&fds, 1, 0); + LWIP_ASSERT("ret == 1", ret == 1); + LWIP_ASSERT("fds.revents & POLLOUT", fds.revents & POLLOUT); + + /* now write should succeed */ + ret = lwip_write(s, "test", 4); + LWIP_ASSERT("ret == 4", ret == 4); + + /* close */ + ret = lwip_close(s); + LWIP_ASSERT("ret == 0", ret == 0); + + printf("select() needed %d ticks to return writable\n", (int)(ticks_b - ticks_a)); + + + /* now try nonblocking to invalid address: + this test only works if it is fast enough, i.e. no breakpoints, please! */ + + /* create the socket */ +#if LWIP_IPV6 + s = lwip_socket(AF_INET6, SOCK_STREAM, 0); +#else /* LWIP_IPV6 */ + s = lwip_socket(AF_INET, SOCK_STREAM, 0); +#endif /* LWIP_IPV6 */ + LWIP_ASSERT("s >= 0", s >= 0); + + /* nonblocking */ + opt = 1; + ret = lwip_ioctl(s, FIONBIO, &opt); + LWIP_ASSERT("ret == 0", ret == 0); + +#if LWIP_IPV6 + addr.sin6_addr.un.u8_addr[0]++; /* this should result in an invalid address */ +#else /* LWIP_IPV6 */ + addr.sin_addr.s_addr++; /* this should result in an invalid address */ +#endif /* LWIP_IPV6 */ + + /* connect */ + ret = lwip_connect(s, (struct sockaddr*)&addr, sizeof(addr)); + /* should have an error: "inprogress" */ + LWIP_ASSERT("ret == -1", ret == -1); + err = errno; + LWIP_ASSERT("errno == EINPROGRESS", err == EINPROGRESS); + + /* write should fail, too */ + ret = lwip_write(s, "test", 4); + LWIP_ASSERT("ret == -1", ret == -1); + err = errno; + LWIP_ASSERT("errno == EINPROGRESS", err == EINPROGRESS); + LWIP_UNUSED_ARG(err); + + FD_ZERO(&sets.readset); + FD_SET(s, &sets.readset); + FD_ZERO(&sets.writeset); + FD_SET(s, &sets.writeset); + FD_ZERO(&sets.errset); + FD_SET(s, &sets.errset); + tv.tv_sec = 0; + tv.tv_usec = 0; + /* select without waiting should fail */ + ret = lwip_select(s + 1, &sets.readset, &sets.writeset, &sets.errset, &tv); + LWIP_ASSERT("ret == 0", ret == 0); + + FD_ZERO(&sets.readset); + FD_SET(s, &sets.readset); + FD_ZERO(&sets.writeset); + FD_SET(s, &sets.writeset); + FD_ZERO(&sets.errset); + FD_SET(s, &sets.errset); + ticks_a = sys_now(); + /* select with waiting should eventually succeed and return errset! */ + ret = lwip_select(s + 1, &sets.readset, &sets.writeset, &sets.errset, NULL); + ticks_b = sys_now(); + LWIP_ASSERT("ret > 0", ret > 0); + LWIP_ASSERT("FD_ISSET(s, &errset)", FD_ISSET(s, &sets.errset)); + /*LWIP_ASSERT("!FD_ISSET(s, &readset)", !FD_ISSET(s, &sets.readset)); + LWIP_ASSERT("!FD_ISSET(s, &writeset)", !FD_ISSET(s, &sets.writeset));*/ + + /* close */ + ret = lwip_close(s); + LWIP_ASSERT("ret == 0", ret == 0); + LWIP_UNUSED_ARG(ret); + + printf("select() needed %d ticks to return error\n", (int)(ticks_b - ticks_a)); + printf("sockex_nonblocking_connect finished successfully\n"); +#else + LWIP_UNUSED_ARG(arg); +#endif +} + +/** This is an example function that tests + the recv function (timeout etc.). */ +static void +sockex_testrecv(void *arg) +{ + int s; + int ret; + int err; +#if LWIP_SO_SNDRCVTIMEO_NONSTANDARD + int opt, opt2; +#else + struct timeval opt, opt2; +#endif + socklen_t opt2size; +#if LWIP_IPV6 + struct sockaddr_in6 addr; +#else /* LWIP_IPV6 */ + struct sockaddr_in addr; +#endif /* LWIP_IPV6 */ + size_t len; + char rxbuf[SOCK_TARGET_MAXHTTPPAGESIZE]; +#if LWIP_SOCKET_SELECT + fd_set readset; + fd_set errset; + struct timeval tv; +#endif + const ip_addr_t *ipaddr = (const ip_addr_t*)arg; + + /* set up address to connect to */ + memset(&addr, 0, sizeof(addr)); +#if LWIP_IPV6 + addr.sin6_len = sizeof(addr); + addr.sin6_family = AF_INET6; + addr.sin6_port = PP_HTONS(SOCK_TARGET_PORT); + inet6_addr_from_ip6addr(&addr.sin6_addr, ip_2_ip6(ipaddr)); +#else /* LWIP_IPV6 */ + addr.sin_len = sizeof(addr); + addr.sin_family = AF_INET; + addr.sin_port = PP_HTONS(SOCK_TARGET_PORT); + inet_addr_from_ip4addr(&addr.sin_addr, ip_2_ip4(ipaddr)); +#endif /* LWIP_IPV6 */ + + /* first try blocking: */ + + /* create the socket */ +#if LWIP_IPV6 + s = lwip_socket(AF_INET6, SOCK_STREAM, 0); +#else /* LWIP_IPV6 */ + s = lwip_socket(AF_INET, SOCK_STREAM, 0); +#endif /* LWIP_IPV6 */ + LWIP_ASSERT("s >= 0", s >= 0); + + /* connect */ + ret = lwip_connect(s, (struct sockaddr*)&addr, sizeof(addr)); + /* should succeed */ + LWIP_ASSERT("ret == 0", ret == 0); + + /* set recv timeout (100 ms) */ +#if LWIP_SO_SNDRCVTIMEO_NONSTANDARD + opt = 100; +#else + opt.tv_sec = 0; + opt.tv_usec = 100 * 1000; +#endif + ret = lwip_setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &opt, sizeof(opt)); + LWIP_ASSERT("ret == 0", ret == 0); +#if LWIP_SO_SNDRCVTIMEO_NONSTANDARD + opt2 = 0; +#else + opt2.tv_sec = 0; + opt2.tv_usec = 0; +#endif + opt2size = sizeof(opt2); + ret = lwip_getsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &opt2, &opt2size); + LWIP_ASSERT("ret == 0", ret == 0); + LWIP_ASSERT("opt2size == sizeof(opt2)", opt2size == sizeof(opt2)); +#if LWIP_SO_SNDRCVTIMEO_NONSTANDARD + LWIP_ASSERT("opt == opt2", opt == opt2); +#else + LWIP_ASSERT("opt == opt2", opt.tv_sec == opt2.tv_sec); + LWIP_ASSERT("opt == opt2", opt.tv_usec == opt2.tv_usec); +#endif + + /* write the start of a GET request */ +#define SNDSTR1 "G" + len = strlen(SNDSTR1); + ret = lwip_write(s, SNDSTR1, len); + LWIP_ASSERT("ret == len", ret == (int)len); + + /* should time out if the other side is a good HTTP server */ + ret = lwip_read(s, rxbuf, 1); + LWIP_ASSERT("ret == -1", ret == -1); + err = errno; + LWIP_ASSERT("errno == EAGAIN", err == EAGAIN); + LWIP_UNUSED_ARG(err); + + /* write the rest of a GET request */ +#define SNDSTR2 "ET / HTTP_1.1\r\n\r\n" + len = strlen(SNDSTR2); + ret = lwip_write(s, SNDSTR2, len); + LWIP_ASSERT("ret == len", ret == (int)len); + + /* wait a while: should be enough for the server to send a response */ + sys_msleep(1000); + + /* should not time out but receive a response */ + ret = lwip_read(s, rxbuf, SOCK_TARGET_MAXHTTPPAGESIZE); + LWIP_ASSERT("ret > 0", ret > 0); + +#if LWIP_SOCKET_SELECT + /* now select should directly return because the socket is readable */ + FD_ZERO(&readset); + FD_ZERO(&errset); + FD_SET(s, &readset); + FD_SET(s, &errset); + tv.tv_sec = 10; + tv.tv_usec = 0; + ret = lwip_select(s + 1, &readset, NULL, &errset, &tv); + LWIP_ASSERT("ret == 1", ret == 1); + LWIP_ASSERT("!FD_ISSET(s, &errset)", !FD_ISSET(s, &errset)); + LWIP_ASSERT("FD_ISSET(s, &readset)", FD_ISSET(s, &readset)); +#endif + + /* should not time out but receive a response */ + ret = lwip_read(s, rxbuf, SOCK_TARGET_MAXHTTPPAGESIZE); + /* might receive a second packet for HTTP/1.1 servers */ + if (ret > 0) { + /* should return 0: closed */ + ret = lwip_read(s, rxbuf, SOCK_TARGET_MAXHTTPPAGESIZE); + LWIP_ASSERT("ret == 0", ret == 0); + } + + /* close */ + ret = lwip_close(s); + LWIP_ASSERT("ret == 0", ret == 0); + LWIP_UNUSED_ARG(ret); + + printf("sockex_testrecv finished successfully\n"); +} + +#if LWIP_SOCKET_SELECT +/** helper struct for the 2 functions below (multithreaded: thread-argument) */ +struct sockex_select_helper { + int socket; + int wait_read; + int expect_read; + int wait_write; + int expect_write; + int wait_err; + int expect_err; + int wait_ms; + sys_sem_t sem; +}; + +/** helper thread to wait for socket events using select */ +static void +sockex_select_waiter(void *arg) +{ + struct sockex_select_helper *helper = (struct sockex_select_helper *)arg; + int ret; + fd_set readset; + fd_set writeset; + fd_set errset; + struct timeval tv; + + LWIP_ASSERT("helper != NULL", helper != NULL); + + FD_ZERO(&readset); + FD_ZERO(&writeset); + FD_ZERO(&errset); + if (helper->wait_read) { + FD_SET(helper->socket, &readset); + } + if (helper->wait_write) { + FD_SET(helper->socket, &writeset); + } + if (helper->wait_err) { + FD_SET(helper->socket, &errset); + } + + tv.tv_sec = helper->wait_ms / 1000; + tv.tv_usec = (helper->wait_ms % 1000) * 1000; + + ret = lwip_select(helper->socket, &readset, &writeset, &errset, &tv); + if (helper->expect_read || helper->expect_write || helper->expect_err) { + LWIP_ASSERT("ret > 0", ret > 0); + } else { + LWIP_ASSERT("ret == 0", ret == 0); + } + LWIP_UNUSED_ARG(ret); + if (helper->expect_read) { + LWIP_ASSERT("FD_ISSET(helper->socket, &readset)", FD_ISSET(helper->socket, &readset)); + } else { + LWIP_ASSERT("!FD_ISSET(helper->socket, &readset)", !FD_ISSET(helper->socket, &readset)); + } + if (helper->expect_write) { + LWIP_ASSERT("FD_ISSET(helper->socket, &writeset)", FD_ISSET(helper->socket, &writeset)); + } else { + LWIP_ASSERT("!FD_ISSET(helper->socket, &writeset)", !FD_ISSET(helper->socket, &writeset)); + } + if (helper->expect_err) { + LWIP_ASSERT("FD_ISSET(helper->socket, &errset)", FD_ISSET(helper->socket, &errset)); + } else { + LWIP_ASSERT("!FD_ISSET(helper->socket, &errset)", !FD_ISSET(helper->socket, &errset)); + } + sys_sem_signal(&helper->sem); +} + +/** This is an example function that tests + more than one thread being active in select. */ +static void +sockex_testtwoselects(void *arg) +{ + int s1; + int s2; + int ret; +#if LWIP_IPV6 + struct sockaddr_in6 addr; +#else /* LWIP_IPV6 */ + struct sockaddr_in addr; +#endif /* LWIP_IPV6 */ + size_t len; + err_t lwiperr; + struct sockex_select_helper h1, h2, h3, h4; + const ip_addr_t *ipaddr = (const ip_addr_t*)arg; + + /* set up address to connect to */ + memset(&addr, 0, sizeof(addr)); +#if LWIP_IPV6 + addr.sin6_len = sizeof(addr); + addr.sin6_family = AF_INET6; + addr.sin6_port = PP_HTONS(SOCK_TARGET_PORT); + inet6_addr_from_ip6addr(&addr.sin6_addr, ip_2_ip6(ipaddr)); +#else /* LWIP_IPV6 */ + addr.sin_len = sizeof(addr); + addr.sin_family = AF_INET; + addr.sin_port = PP_HTONS(SOCK_TARGET_PORT); + inet_addr_from_ip4addr(&addr.sin_addr, ip_2_ip4(ipaddr)); +#endif /* LWIP_IPV6 */ + + /* create the sockets */ +#if LWIP_IPV6 + s1 = lwip_socket(AF_INET6, SOCK_STREAM, 0); + s2 = lwip_socket(AF_INET6, SOCK_STREAM, 0); +#else /* LWIP_IPV6 */ + s1 = lwip_socket(AF_INET, SOCK_STREAM, 0); + s2 = lwip_socket(AF_INET, SOCK_STREAM, 0); +#endif /* LWIP_IPV6 */ + LWIP_ASSERT("s1 >= 0", s1 >= 0); + LWIP_ASSERT("s2 >= 0", s2 >= 0); + + /* connect, should succeed */ + ret = lwip_connect(s1, (struct sockaddr*)&addr, sizeof(addr)); + LWIP_ASSERT("ret == 0", ret == 0); + ret = lwip_connect(s2, (struct sockaddr*)&addr, sizeof(addr)); + LWIP_ASSERT("ret == 0", ret == 0); + + /* write the start of a GET request */ +#define SNDSTR1 "G" + len = strlen(SNDSTR1); + ret = lwip_write(s1, SNDSTR1, len); + LWIP_ASSERT("ret == len", ret == (int)len); + ret = lwip_write(s2, SNDSTR1, len); + LWIP_ASSERT("ret == len", ret == (int)len); + LWIP_UNUSED_ARG(ret); + + h1.wait_read = 1; + h1.wait_write = 1; + h1.wait_err = 1; + h1.expect_read = 0; + h1.expect_write = 0; + h1.expect_err = 0; + lwiperr = sys_sem_new(&h1.sem, 0); + LWIP_ASSERT("lwiperr == ERR_OK", lwiperr == ERR_OK); + h1.socket = s1; + h1.wait_ms = 500; + + h2 = h1; + lwiperr = sys_sem_new(&h2.sem, 0); + LWIP_ASSERT("lwiperr == ERR_OK", lwiperr == ERR_OK); + h2.socket = s2; + h2.wait_ms = 1000; + + h3 = h1; + lwiperr = sys_sem_new(&h3.sem, 0); + LWIP_ASSERT("lwiperr == ERR_OK", lwiperr == ERR_OK); + h3.socket = s2; + h3.wait_ms = 1500; + + h4 = h1; + lwiperr = sys_sem_new(&h4.sem, 0); + LWIP_ASSERT("lwiperr == ERR_OK", lwiperr == ERR_OK); + LWIP_UNUSED_ARG(lwiperr); + h4.socket = s2; + h4.wait_ms = 2000; + + /* select: all sockets should time out if the other side is a good HTTP server */ + + sys_thread_new("sockex_select_waiter1", sockex_select_waiter, &h2, 0, 0); + sys_msleep(100); + sys_thread_new("sockex_select_waiter2", sockex_select_waiter, &h1, 0, 0); + sys_msleep(100); + sys_thread_new("sockex_select_waiter2", sockex_select_waiter, &h4, 0, 0); + sys_msleep(100); + sys_thread_new("sockex_select_waiter2", sockex_select_waiter, &h3, 0, 0); + + sys_sem_wait(&h1.sem); + sys_sem_wait(&h2.sem); + sys_sem_wait(&h3.sem); + sys_sem_wait(&h4.sem); + + /* close */ + ret = lwip_close(s1); + LWIP_ASSERT("ret == 0", ret == 0); + ret = lwip_close(s2); + LWIP_ASSERT("ret == 0", ret == 0); + + printf("sockex_testtwoselects finished successfully\n"); +} +#else +static void +sockex_testtwoselects(void *arg) +{ + LWIP_UNUSED_ARG(arg); +} +#endif + +#if !SOCKET_EXAMPLES_RUN_PARALLEL +static void +socket_example_test(void* arg) +{ + sys_msleep(1000); + sockex_nonblocking_connect(arg); + sockex_testrecv(arg); + sockex_testtwoselects(arg); + printf("all tests done, thread ending\n"); +} +#endif + +void socket_examples_init(void) +{ + int addr_ok; +#if LWIP_IPV6 + IP_SET_TYPE_VAL(dstaddr, IPADDR_TYPE_V6); + addr_ok = ip6addr_aton(SOCK_TARGET_HOST6, ip_2_ip6(&dstaddr)); +#else /* LWIP_IPV6 */ + IP_SET_TYPE_VAL(dstaddr, IPADDR_TYPE_V4); + addr_ok = ip4addr_aton(SOCK_TARGET_HOST4, ip_2_ip4(&dstaddr)); +#endif /* LWIP_IPV6 */ + LWIP_ASSERT("invalid address", addr_ok); +#if SOCKET_EXAMPLES_RUN_PARALLEL + sys_thread_new("sockex_nonblocking_connect", sockex_nonblocking_connect, &dstaddr, 0, 0); + sys_thread_new("sockex_testrecv", sockex_testrecv, &dstaddr, 0, 0); + sys_thread_new("sockex_testtwoselects", sockex_testtwoselects, &dstaddr, 0, 0); +#else + sys_thread_new("socket_example_test", socket_example_test, &dstaddr, 0, 0); +#endif +} + +#endif /* LWIP_SOCKET */ diff --git a/middleware/lwip/contrib/apps/socket_examples/socket_examples.h b/middleware/lwip/contrib/apps/socket_examples/socket_examples.h new file mode 100644 index 0000000..354d03a --- /dev/null +++ b/middleware/lwip/contrib/apps/socket_examples/socket_examples.h @@ -0,0 +1,6 @@ +#ifndef LWIP_SOCKET_EXAMPLES_H +#define LWIP_SOCKET_EXAMPLES_H + +void socket_examples_init(void); + +#endif /* LWIP_SOCKET_EXAMPLES_H */ diff --git a/middleware/lwip/contrib/apps/tcpecho/tcpecho.c b/middleware/lwip/contrib/apps/tcpecho/tcpecho.c new file mode 100644 index 0000000..8fe1359 --- /dev/null +++ b/middleware/lwip/contrib/apps/tcpecho/tcpecho.c @@ -0,0 +1,101 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#include "tcpecho.h" + +#include "lwip/opt.h" + +#if LWIP_NETCONN + +#include "lwip/sys.h" +#include "lwip/api.h" +/*-----------------------------------------------------------------------------------*/ +static void +tcpecho_thread(void *arg) +{ + struct netconn *conn, *newconn; + err_t err; + LWIP_UNUSED_ARG(arg); + + /* Create a new connection identifier. */ + /* Bind connection to well known port number 7. */ +#if LWIP_IPV6 + conn = netconn_new(NETCONN_TCP_IPV6); + netconn_bind(conn, IP6_ADDR_ANY, 7); +#else /* LWIP_IPV6 */ + conn = netconn_new(NETCONN_TCP); + netconn_bind(conn, IP_ADDR_ANY, 7); +#endif /* LWIP_IPV6 */ + LWIP_ERROR("tcpecho: invalid conn", (conn != NULL), return;); + + /* Tell connection to go into listening mode. */ + netconn_listen(conn); + + while (1) { + + /* Grab new connection. */ + err = netconn_accept(conn, &newconn); + /*printf("accepted new connection %p\n", newconn);*/ + /* Process the new connection. */ + if (err == ERR_OK) { + struct netbuf *buf; + void *data; + u16_t len; + + while ((err = netconn_recv(newconn, &buf)) == ERR_OK) { + /*printf("Recved\n");*/ + do { + netbuf_data(buf, &data, &len); + err = netconn_write(newconn, data, len, NETCONN_COPY); +#if 0 + if (err != ERR_OK) { + printf("tcpecho: netconn_write: error \"%s\"\n", lwip_strerr(err)); + } +#endif + } while (netbuf_next(buf) >= 0); + netbuf_delete(buf); + } + /*printf("Got EOF, looping\n");*/ + /* Close connection and discard connection identifier. */ + netconn_close(newconn); + netconn_delete(newconn); + } + } +} +/*-----------------------------------------------------------------------------------*/ +void +tcpecho_init(void) +{ + sys_thread_new("tcpecho_thread", tcpecho_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); +} +/*-----------------------------------------------------------------------------------*/ + +#endif /* LWIP_NETCONN */ diff --git a/middleware/lwip/contrib/apps/tcpecho/tcpecho.h b/middleware/lwip/contrib/apps/tcpecho/tcpecho.h new file mode 100644 index 0000000..b27c50f --- /dev/null +++ b/middleware/lwip/contrib/apps/tcpecho/tcpecho.h @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#ifndef LWIP_TCPECHO_H +#define LWIP_TCPECHO_H + +void tcpecho_init(void); + +#endif /* LWIP_TCPECHO_H */ diff --git a/middleware/lwip/contrib/apps/tcpecho_raw/tcpecho_raw.c b/middleware/lwip/contrib/apps/tcpecho_raw/tcpecho_raw.c new file mode 100644 index 0000000..5a71d84 --- /dev/null +++ b/middleware/lwip/contrib/apps/tcpecho_raw/tcpecho_raw.c @@ -0,0 +1,301 @@ +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of and a contribution to the lwIP TCP/IP stack. + * + * Credits go to Adam Dunkels (and the current maintainers) of this software. + * + * Christiaan Simons rewrote this file to get a more stable echo example. + */ + +/** + * @file + * TCP echo server example using raw API. + * + * Echos all bytes sent by connecting client, + * and passively closes when client is done. + * + */ + +#include "lwip/opt.h" +#include "lwip/debug.h" +#include "lwip/stats.h" +#include "lwip/tcp.h" +#include "tcpecho_raw.h" + +#if LWIP_TCP && LWIP_CALLBACK_API + +static struct tcp_pcb *tcpecho_raw_pcb; + +enum tcpecho_raw_states +{ + ES_NONE = 0, + ES_ACCEPTED, + ES_RECEIVED, + ES_CLOSING +}; + +struct tcpecho_raw_state +{ + u8_t state; + u8_t retries; + struct tcp_pcb *pcb; + /* pbuf (chain) to recycle */ + struct pbuf *p; +}; + +static void +tcpecho_raw_free(struct tcpecho_raw_state *es) +{ + if (es != NULL) { + if (es->p) { + /* free the buffer chain if present */ + pbuf_free(es->p); + } + + mem_free(es); + } +} + +static void +tcpecho_raw_close(struct tcp_pcb *tpcb, struct tcpecho_raw_state *es) +{ + tcp_arg(tpcb, NULL); + tcp_sent(tpcb, NULL); + tcp_recv(tpcb, NULL); + tcp_err(tpcb, NULL); + tcp_poll(tpcb, NULL, 0); + + tcpecho_raw_free(es); + + tcp_close(tpcb); +} + +static void +tcpecho_raw_send(struct tcp_pcb *tpcb, struct tcpecho_raw_state *es) +{ + struct pbuf *ptr; + err_t wr_err = ERR_OK; + + while ((wr_err == ERR_OK) && + (es->p != NULL) && + (es->p->len <= tcp_sndbuf(tpcb))) { + ptr = es->p; + + /* enqueue data for transmission */ + wr_err = tcp_write(tpcb, ptr->payload, ptr->len, 1); + if (wr_err == ERR_OK) { + u16_t plen; + + plen = ptr->len; + /* continue with next pbuf in chain (if any) */ + es->p = ptr->next; + if(es->p != NULL) { + /* new reference! */ + pbuf_ref(es->p); + } + /* chop first pbuf from chain */ + pbuf_free(ptr); + /* we can read more data now */ + tcp_recved(tpcb, plen); + } else if(wr_err == ERR_MEM) { + /* we are low on memory, try later / harder, defer to poll */ + es->p = ptr; + } else { + /* other problem ?? */ + } + } +} + +static void +tcpecho_raw_error(void *arg, err_t err) +{ + struct tcpecho_raw_state *es; + + LWIP_UNUSED_ARG(err); + + es = (struct tcpecho_raw_state *)arg; + + tcpecho_raw_free(es); +} + +static err_t +tcpecho_raw_poll(void *arg, struct tcp_pcb *tpcb) +{ + err_t ret_err; + struct tcpecho_raw_state *es; + + es = (struct tcpecho_raw_state *)arg; + if (es != NULL) { + if (es->p != NULL) { + /* there is a remaining pbuf (chain) */ + tcpecho_raw_send(tpcb, es); + } else { + /* no remaining pbuf (chain) */ + if(es->state == ES_CLOSING) { + tcpecho_raw_close(tpcb, es); + } + } + ret_err = ERR_OK; + } else { + /* nothing to be done */ + tcp_abort(tpcb); + ret_err = ERR_ABRT; + } + return ret_err; +} + +static err_t +tcpecho_raw_sent(void *arg, struct tcp_pcb *tpcb, u16_t len) +{ + struct tcpecho_raw_state *es; + + LWIP_UNUSED_ARG(len); + + es = (struct tcpecho_raw_state *)arg; + es->retries = 0; + + if(es->p != NULL) { + /* still got pbufs to send */ + tcp_sent(tpcb, tcpecho_raw_sent); + tcpecho_raw_send(tpcb, es); + } else { + /* no more pbufs to send */ + if(es->state == ES_CLOSING) { + tcpecho_raw_close(tpcb, es); + } + } + return ERR_OK; +} + +static err_t +tcpecho_raw_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err) +{ + struct tcpecho_raw_state *es; + err_t ret_err; + + LWIP_ASSERT("arg != NULL",arg != NULL); + es = (struct tcpecho_raw_state *)arg; + if (p == NULL) { + /* remote host closed connection */ + es->state = ES_CLOSING; + if(es->p == NULL) { + /* we're done sending, close it */ + tcpecho_raw_close(tpcb, es); + } else { + /* we're not done yet */ + tcpecho_raw_send(tpcb, es); + } + ret_err = ERR_OK; + } else if(err != ERR_OK) { + /* cleanup, for unknown reason */ + LWIP_ASSERT("no pbuf expected here", p == NULL); + ret_err = err; + } + else if(es->state == ES_ACCEPTED) { + /* first data chunk in p->payload */ + es->state = ES_RECEIVED; + /* store reference to incoming pbuf (chain) */ + es->p = p; + tcpecho_raw_send(tpcb, es); + ret_err = ERR_OK; + } else if (es->state == ES_RECEIVED) { + /* read some more data */ + if(es->p == NULL) { + es->p = p; + tcpecho_raw_send(tpcb, es); + } else { + struct pbuf *ptr; + + /* chain pbufs to the end of what we recv'ed previously */ + ptr = es->p; + pbuf_cat(ptr,p); + } + ret_err = ERR_OK; + } else { + /* unknown es->state, trash data */ + tcp_recved(tpcb, p->tot_len); + pbuf_free(p); + ret_err = ERR_OK; + } + return ret_err; +} + +static err_t +tcpecho_raw_accept(void *arg, struct tcp_pcb *newpcb, err_t err) +{ + err_t ret_err; + struct tcpecho_raw_state *es; + + LWIP_UNUSED_ARG(arg); + if ((err != ERR_OK) || (newpcb == NULL)) { + return ERR_VAL; + } + + /* Unless this pcb should have NORMAL priority, set its priority now. + When running out of pcbs, low priority pcbs can be aborted to create + new pcbs of higher priority. */ + tcp_setprio(newpcb, TCP_PRIO_MIN); + + es = (struct tcpecho_raw_state *)mem_malloc(sizeof(struct tcpecho_raw_state)); + if (es != NULL) { + es->state = ES_ACCEPTED; + es->pcb = newpcb; + es->retries = 0; + es->p = NULL; + /* pass newly allocated es to our callbacks */ + tcp_arg(newpcb, es); + tcp_recv(newpcb, tcpecho_raw_recv); + tcp_err(newpcb, tcpecho_raw_error); + tcp_poll(newpcb, tcpecho_raw_poll, 0); + tcp_sent(newpcb, tcpecho_raw_sent); + ret_err = ERR_OK; + } else { + ret_err = ERR_MEM; + } + return ret_err; +} + +void +tcpecho_raw_init(void) +{ + tcpecho_raw_pcb = tcp_new_ip_type(IPADDR_TYPE_ANY); + if (tcpecho_raw_pcb != NULL) { + err_t err; + + err = tcp_bind(tcpecho_raw_pcb, IP_ANY_TYPE, 7); + if (err == ERR_OK) { + tcpecho_raw_pcb = tcp_listen(tcpecho_raw_pcb); + tcp_accept(tcpecho_raw_pcb, tcpecho_raw_accept); + } else { + /* abort? output diagnostic? */ + } + } else { + /* abort? output diagnostic? */ + } +} + +#endif /* LWIP_TCP && LWIP_CALLBACK_API */ diff --git a/middleware/lwip/contrib/apps/tcpecho_raw/tcpecho_raw.h b/middleware/lwip/contrib/apps/tcpecho_raw/tcpecho_raw.h new file mode 100644 index 0000000..d1e3b33 --- /dev/null +++ b/middleware/lwip/contrib/apps/tcpecho_raw/tcpecho_raw.h @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ +#ifndef LWIP_TCPECHO_RAW_H +#define LWIP_TCPECHO_RAW_H + +void tcpecho_raw_init(void); + +#endif /* LWIP_TCPECHO_RAW_H */ diff --git a/middleware/lwip/contrib/apps/udpecho/udpecho.c b/middleware/lwip/contrib/apps/udpecho/udpecho.c new file mode 100644 index 0000000..b68301e --- /dev/null +++ b/middleware/lwip/contrib/apps/udpecho/udpecho.c @@ -0,0 +1,88 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "udpecho.h" + +#include "lwip/opt.h" + +#if LWIP_NETCONN + +#include "lwip/api.h" +#include "lwip/sys.h" + +/*-----------------------------------------------------------------------------------*/ +static void +udpecho_thread(void *arg) +{ + struct netconn *conn; + struct netbuf *buf; + char buffer[4096]; + err_t err; + LWIP_UNUSED_ARG(arg); + +#if LWIP_IPV6 + conn = netconn_new(NETCONN_UDP_IPV6); + LWIP_ERROR("udpecho: invalid conn", (conn != NULL), return;); + netconn_bind(conn, IP6_ADDR_ANY, 7); +#else /* LWIP_IPV6 */ + conn = netconn_new(NETCONN_UDP); + LWIP_ERROR("udpecho: invalid conn", (conn != NULL), return;); + netconn_bind(conn, IP_ADDR_ANY, 7); +#endif /* LWIP_IPV6 */ + + while (1) { + err = netconn_recv(conn, &buf); + if (err == ERR_OK) { + /* no need netconn_connect here, since the netbuf contains the address */ + if(netbuf_copy(buf, buffer, sizeof(buffer)) != buf->p->tot_len) { + LWIP_DEBUGF(LWIP_DBG_ON, ("netbuf_copy failed\n")); + } else { + buffer[buf->p->tot_len] = '\0'; + err = netconn_send(conn, buf); + if(err != ERR_OK) { + LWIP_DEBUGF(LWIP_DBG_ON, ("netconn_send failed: %d\n", (int)err)); + } else { + LWIP_DEBUGF(LWIP_DBG_ON, ("got %s\n", buffer)); + } + } + netbuf_delete(buf); + } + } +} +/*-----------------------------------------------------------------------------------*/ +void +udpecho_init(void) +{ + sys_thread_new("udpecho_thread", udpecho_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); +} + +#endif /* LWIP_NETCONN */ diff --git a/middleware/lwip/contrib/apps/udpecho/udpecho.h b/middleware/lwip/contrib/apps/udpecho/udpecho.h new file mode 100644 index 0000000..c438911 --- /dev/null +++ b/middleware/lwip/contrib/apps/udpecho/udpecho.h @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_UDPECHO_H +#define LWIP_UDPECHO_H + +void udpecho_init(void); + +#endif /* LWIP_UDPECHO_H */ diff --git a/middleware/lwip/contrib/apps/udpecho_raw/udpecho_raw.c b/middleware/lwip/contrib/apps/udpecho_raw/udpecho_raw.c new file mode 100644 index 0000000..43c9f0b --- /dev/null +++ b/middleware/lwip/contrib/apps/udpecho_raw/udpecho_raw.c @@ -0,0 +1,88 @@ +/* + * Copyright (c) 2016 Stephan Linz , Li-Pro.Net + * All rights reserved. + * + * Based on examples provided by + * Iwan Budi Kusnanto (https://gist.github.com/iwanbk/1399729) + * Juri Haberland (https://lists.gnu.org/archive/html/lwip-users/2007-06/msg00078.html) + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of and a contribution to the lwIP TCP/IP stack. + * + * Credits go to Adam Dunkels (and the current maintainers) of this software. + * + * Stephan Linz rewrote this file to get a basic echo example. + */ + +/** + * @file + * UDP echo server example using raw API. + * + * Echos all bytes sent by connecting client, + * and passively closes when client is done. + * + */ + +#include "lwip/opt.h" +#include "lwip/debug.h" +#include "lwip/stats.h" +#include "lwip/udp.h" +#include "udpecho_raw.h" + +#if LWIP_UDP + +static struct udp_pcb *udpecho_raw_pcb; + +static void +udpecho_raw_recv(void *arg, struct udp_pcb *upcb, struct pbuf *p, + const ip_addr_t *addr, u16_t port) +{ + LWIP_UNUSED_ARG(arg); + if (p != NULL) { + /* send received packet back to sender */ + udp_sendto(upcb, p, addr, port); + /* free the pbuf */ + pbuf_free(p); + } +} + +void +udpecho_raw_init(void) +{ + udpecho_raw_pcb = udp_new_ip_type(IPADDR_TYPE_ANY); + if (udpecho_raw_pcb != NULL) { + err_t err; + + err = udp_bind(udpecho_raw_pcb, IP_ANY_TYPE, 7); + if (err == ERR_OK) { + udp_recv(udpecho_raw_pcb, udpecho_raw_recv, NULL); + } else { + /* abort? output diagnostic? */ + } + } else { + /* abort? output diagnostic? */ + } +} + +#endif /* LWIP_UDP */ diff --git a/middleware/lwip/contrib/apps/udpecho_raw/udpecho_raw.h b/middleware/lwip/contrib/apps/udpecho_raw/udpecho_raw.h new file mode 100644 index 0000000..4a98b74 --- /dev/null +++ b/middleware/lwip/contrib/apps/udpecho_raw/udpecho_raw.h @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2016 Stephan Linz , Li-Pro.Net + * All rights reserved. + * + * Based on examples provided by + * Iwan Budi Kusnanto (https://gist.github.com/iwanbk/1399729) + * Juri Haberland (https://lists.gnu.org/archive/html/lwip-users/2007-06/msg00078.html) + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ +#ifndef LWIP_UDPECHO_RAW_H +#define LWIP_UDPECHO_RAW_H + +void udpecho_raw_init(void); + +#endif /* LWIP_UDPECHO_RAW_H */ diff --git a/middleware/lwip/contrib/examples/ethernetif/ethernetif.c b/middleware/lwip/contrib/examples/ethernetif/ethernetif.c new file mode 100644 index 0000000..79763e8 --- /dev/null +++ b/middleware/lwip/contrib/examples/ethernetif/ethernetif.c @@ -0,0 +1,337 @@ +/** + * @file + * Ethernet Interface Skeleton + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +/* + * This file is a skeleton for developing Ethernet network interface + * drivers for lwIP. Add code to the low_level functions and do a + * search-and-replace for the word "ethernetif" to replace it with + * something that better describes your network interface. + */ + +#include "lwip/opt.h" + +#if 0 /* don't build, this is only a skeleton, see previous comment */ + +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/pbuf.h" +#include "lwip/stats.h" +#include "lwip/snmp.h" +#include "lwip/ethip6.h" +#include "lwip/etharp.h" +#include "netif/ppp/pppoe.h" + +/* Define those to better describe your network interface. */ +#define IFNAME0 'e' +#define IFNAME1 'n' + +/** + * Helper struct to hold private data used to operate your ethernet interface. + * Keeping the ethernet address of the MAC in this struct is not necessary + * as it is already kept in the struct netif. + * But this is only an example, anyway... + */ +struct ethernetif { + struct eth_addr *ethaddr; + /* Add whatever per-interface state that is needed here. */ +}; + +/* Forward declarations. */ +static void ethernetif_input(struct netif *netif); + +/** + * In this function, the hardware should be initialized. + * Called from ethernetif_init(). + * + * @param netif the already initialized lwip network interface structure + * for this ethernetif + */ +static void +low_level_init(struct netif *netif) +{ + struct ethernetif *ethernetif = netif->state; + + /* set MAC hardware address length */ + netif->hwaddr_len = ETHARP_HWADDR_LEN; + + /* set MAC hardware address */ + netif->hwaddr[0] = ; + ... + netif->hwaddr[5] = ; + + /* maximum transfer unit */ + netif->mtu = 1500; + + /* device capabilities */ + /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */ + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP; + +#if LWIP_IPV6 && LWIP_IPV6_MLD + /* + * For hardware/netifs that implement MAC filtering. + * All-nodes link-local is handled by default, so we must let the hardware know + * to allow multicast packets in. + * Should set mld_mac_filter previously. */ + if (netif->mld_mac_filter != NULL) { + ip6_addr_t ip6_allnodes_ll; + ip6_addr_set_allnodes_linklocal(&ip6_allnodes_ll); + netif->mld_mac_filter(netif, &ip6_allnodes_ll, NETIF_ADD_MAC_FILTER); + } +#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ + + /* Do whatever else is needed to initialize interface. */ +} + +/** + * This function should do the actual transmission of the packet. The packet is + * contained in the pbuf that is passed to the function. This pbuf + * might be chained. + * + * @param netif the lwip network interface structure for this ethernetif + * @param p the MAC packet to send (e.g. IP packet including MAC addresses and type) + * @return ERR_OK if the packet could be sent + * an err_t value if the packet couldn't be sent + * + * @note Returning ERR_MEM here if a DMA queue of your MAC is full can lead to + * strange results. You might consider waiting for space in the DMA queue + * to become available since the stack doesn't retry to send a packet + * dropped because of memory failure (except for the TCP timers). + */ + +static err_t +low_level_output(struct netif *netif, struct pbuf *p) +{ + struct ethernetif *ethernetif = netif->state; + struct pbuf *q; + + initiate transfer(); + +#if ETH_PAD_SIZE + pbuf_remove_header(p, ETH_PAD_SIZE); /* drop the padding word */ +#endif + + for (q = p; q != NULL; q = q->next) { + /* Send the data from the pbuf to the interface, one pbuf at a + time. The size of the data in each pbuf is kept in the ->len + variable. */ + send data from(q->payload, q->len); + } + + signal that packet should be sent(); + + MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p->tot_len); + if (((u8_t *)p->payload)[0] & 1) { + /* broadcast or multicast packet*/ + MIB2_STATS_NETIF_INC(netif, ifoutnucastpkts); + } else { + /* unicast packet */ + MIB2_STATS_NETIF_INC(netif, ifoutucastpkts); + } + /* increase ifoutdiscards or ifouterrors on error */ + +#if ETH_PAD_SIZE + pbuf_add_header(p, ETH_PAD_SIZE); /* reclaim the padding word */ +#endif + + LINK_STATS_INC(link.xmit); + + return ERR_OK; +} + +/** + * Should allocate a pbuf and transfer the bytes of the incoming + * packet from the interface into the pbuf. + * + * @param netif the lwip network interface structure for this ethernetif + * @return a pbuf filled with the received packet (including MAC header) + * NULL on memory error + */ +static struct pbuf * +low_level_input(struct netif *netif) +{ + struct ethernetif *ethernetif = netif->state; + struct pbuf *p, *q; + u16_t len; + + /* Obtain the size of the packet and put it into the "len" + variable. */ + len = ; + +#if ETH_PAD_SIZE + len += ETH_PAD_SIZE; /* allow room for Ethernet padding */ +#endif + + /* We allocate a pbuf chain of pbufs from the pool. */ + p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL); + + if (p != NULL) { + +#if ETH_PAD_SIZE + pbuf_remove_header(p, ETH_PAD_SIZE); /* drop the padding word */ +#endif + + /* We iterate over the pbuf chain until we have read the entire + * packet into the pbuf. */ + for (q = p; q != NULL; q = q->next) { + /* Read enough bytes to fill this pbuf in the chain. The + * available data in the pbuf is given by the q->len + * variable. + * This does not necessarily have to be a memcpy, you can also preallocate + * pbufs for a DMA-enabled MAC and after receiving truncate it to the + * actually received size. In this case, ensure the tot_len member of the + * pbuf is the sum of the chained pbuf len members. + */ + read data into(q->payload, q->len); + } + acknowledge that packet has been read(); + + MIB2_STATS_NETIF_ADD(netif, ifinoctets, p->tot_len); + if (((u8_t *)p->payload)[0] & 1) { + /* broadcast or multicast packet*/ + MIB2_STATS_NETIF_INC(netif, ifinnucastpkts); + } else { + /* unicast packet*/ + MIB2_STATS_NETIF_INC(netif, ifinucastpkts); + } +#if ETH_PAD_SIZE + pbuf_add_header(p, ETH_PAD_SIZE); /* reclaim the padding word */ +#endif + + LINK_STATS_INC(link.recv); + } else { + drop packet(); + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(netif, ifindiscards); + } + + return p; +} + +/** + * This function should be called when a packet is ready to be read + * from the interface. It uses the function low_level_input() that + * should handle the actual reception of bytes from the network + * interface. Then the type of the received packet is determined and + * the appropriate input function is called. + * + * @param netif the lwip network interface structure for this ethernetif + */ +static void +ethernetif_input(struct netif *netif) +{ + struct ethernetif *ethernetif; + struct eth_hdr *ethhdr; + struct pbuf *p; + + ethernetif = netif->state; + + /* move received packet into a new pbuf */ + p = low_level_input(netif); + /* if no packet could be read, silently ignore this */ + if (p != NULL) { + /* pass all packets to ethernet_input, which decides what packets it supports */ + if (netif->input(p, netif) != ERR_OK) { + LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n")); + pbuf_free(p); + p = NULL; + } + } +} + +/** + * Should be called at the beginning of the program to set up the + * network interface. It calls the function low_level_init() to do the + * actual setup of the hardware. + * + * This function should be passed as a parameter to netif_add(). + * + * @param netif the lwip network interface structure for this ethernetif + * @return ERR_OK if the loopif is initialized + * ERR_MEM if private data couldn't be allocated + * any other err_t on error + */ +err_t +ethernetif_init(struct netif *netif) +{ + struct ethernetif *ethernetif; + + LWIP_ASSERT("netif != NULL", (netif != NULL)); + + ethernetif = mem_malloc(sizeof(struct ethernetif)); + if (ethernetif == NULL) { + LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_init: out of memory\n")); + return ERR_MEM; + } + +#if LWIP_NETIF_HOSTNAME + /* Initialize interface hostname */ + netif->hostname = "lwip"; +#endif /* LWIP_NETIF_HOSTNAME */ + + /* + * Initialize the snmp variables and counters inside the struct netif. + * The last argument should be replaced with your link speed, in units + * of bits per second. + */ + MIB2_INIT_NETIF(netif, snmp_ifType_ethernet_csmacd, LINK_SPEED_OF_YOUR_NETIF_IN_BPS); + + netif->state = ethernetif; + netif->name[0] = IFNAME0; + netif->name[1] = IFNAME1; + /* We directly use etharp_output() here to save a function call. + * You can instead declare your own function an call etharp_output() + * from it if you have to do some checks before sending (e.g. if link + * is available...) */ +#if LWIP_IPV4 + netif->output = etharp_output; +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + netif->output_ip6 = ethip6_output; +#endif /* LWIP_IPV6 */ + netif->linkoutput = low_level_output; + + ethernetif->ethaddr = (struct eth_addr *) & (netif->hwaddr[0]); + + /* initialize the hardware */ + low_level_init(netif); + + return ERR_OK; +} + +#endif /* 0 */ diff --git a/middleware/lwip/contrib/examples/example_app/default_netif.h b/middleware/lwip/contrib/examples/example_app/default_netif.h new file mode 100644 index 0000000..1a64f02 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/default_netif.h @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#ifndef LWIP_DEFAULT_NETIF_H +#define LWIP_DEFAULT_NETIF_H + +#include "lwip/ip_addr.h" + +#if LWIP_IPV4 +void init_default_netif(const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw); +#else +void init_default_netif(void); +#endif + +void default_netif_poll(void); +void default_netif_shutdown(void); + +#endif diff --git a/middleware/lwip/contrib/examples/example_app/lwipcfg.h.example b/middleware/lwip/contrib/examples/example_app/lwipcfg.h.example new file mode 100644 index 0000000..a751713 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/lwipcfg.h.example @@ -0,0 +1,77 @@ +/** + * Additional settings for the win32 port. + * Copy this to lwipcfg_msvc.h and make the config changes you need. + */ + +/* configuration for this port */ +#define PPP_USERNAME "Admin" +#define PPP_PASSWORD "pass" + +/** Define this to the index of the windows network adapter to use */ +#define PACKET_LIB_ADAPTER_NR 1 +/** Define this to the GUID of the windows network adapter to use + * or NOT define this if you want PACKET_LIB_ADAPTER_NR to be used */ +/*#define PACKET_LIB_ADAPTER_GUID "00000000-0000-0000-0000-000000000000"*/ +/*#define PACKET_LIB_GET_ADAPTER_NETADDRESS(addr) IP4_ADDR((addr), 192,168,1,0)*/ +/*#define PACKET_LIB_QUIET*/ + +/* If these 2 are not defined, the corresponding config setting is used */ +/* #define USE_DHCP 0 */ +/* #define USE_AUTOIP 0 */ + +/* #define USE_PCAPIF 1 */ +#define LWIP_PORT_INIT_IPADDR(addr) IP4_ADDR((addr), 192,168,1,200) +#define LWIP_PORT_INIT_GW(addr) IP4_ADDR((addr), 192,168,1,1) +#define LWIP_PORT_INIT_NETMASK(addr) IP4_ADDR((addr), 255,255,255,0) + +/* remember to change this MAC address to suit your needs! + the last octet will be increased by netif->num for each netif */ +#define LWIP_MAC_ADDR_BASE {0x00,0x01,0x02,0x03,0x04,0x05} + +/* #define USE_SLIPIF 0 */ +/* #define SIO_USE_COMPORT 0 */ +#ifdef USE_SLIPIF +#if USE_SLIPIF +#define LWIP_PORT_INIT_SLIP1_IPADDR(addr) IP4_ADDR((addr), 192, 168, 2, 2) +#define LWIP_PORT_INIT_SLIP1_GW(addr) IP4_ADDR((addr), 192, 168, 2, 1) +#define LWIP_PORT_INIT_SLIP1_NETMASK(addr) IP4_ADDR((addr), 255, 255, 255, 0) +#if USE_SLIPIF > 1 +#define LWIP_PORT_INIT_SLIP2_IPADDR(addr) IP4_ADDR((addr), 192, 168, 2, 1) +#define LWIP_PORT_INIT_SLIP2_GW(addr) IP4_ADDR((addr), 0, 0, 0, 0) +#define LWIP_PORT_INIT_SLIP2_NETMASK(addr) IP4_ADDR((addr), 255, 255, 255, 0)*/ +#endif /* USE_SLIPIF > 1 */ +#endif /* USE_SLIPIF */ +#endif /* USE_SLIPIF */ + +/* configuration for applications */ + +#define LWIP_CHARGEN_APP 0 +#define LWIP_DNS_APP 0 +#define LWIP_HTTPD_APP 0 +/* Set this to 1 to use the netconn http server, + * otherwise the raw api server will be used. */ +/*#define LWIP_HTTPD_APP_NETCONN */ +#define LWIP_NETBIOS_APP 0 +#define LWIP_NETIO_APP 0 +#define LWIP_MDNS_APP 0 +#define LWIP_MQTT_APP 0 +#define LWIP_PING_APP 0 +#define LWIP_RTP_APP 0 +#define LWIP_SHELL_APP 0 +#define LWIP_SNMP_APP 0 +#define LWIP_SNTP_APP 0 +#define LWIP_SOCKET_EXAMPLES_APP 0 +#define LWIP_TCPECHO_APP 0 +/* Set this to 1 to use the netconn tcpecho server, + * otherwise the raw api server will be used. */ +/*#define LWIP_TCPECHO_APP_NETCONN */ +#define LWIP_TFTP_APP 0 +#define LWIP_TFTP_CLIENT_APP 0 +#define LWIP_UDPECHO_APP 0 +#define LWIP_LWIPERF_APP 0 + +/*#define USE_DHCP 1*/ +/*#define USE_AUTOIP 1*/ + +/* define this to your custom application-init function */ +/* #define LWIP_APP_INIT my_app_init() */ diff --git a/middleware/lwip/contrib/examples/example_app/lwipcfg.h.travis b/middleware/lwip/contrib/examples/example_app/lwipcfg.h.travis new file mode 100644 index 0000000..d5df939 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/lwipcfg.h.travis @@ -0,0 +1,73 @@ +/** + * Additional settings for the win32 port. + * Copy this to lwipcfg_msvc.h and make the config changes you need. + */ + +/* configuration for this port */ +#define PPP_USERNAME "Admin" +#define PPP_PASSWORD "pass" + +/** Define this to the index of the windows network adapter to use */ +#define PACKET_LIB_ADAPTER_NR 1 +/** Define this to the GUID of the windows network adapter to use + * or NOT define this if you want PACKET_LIB_ADAPTER_NR to be used */ +/*#define PACKET_LIB_ADAPTER_GUID "00000000-0000-0000-0000-000000000000"*/ +/*#define PACKET_LIB_GET_ADAPTER_NETADDRESS(addr) IP4_ADDR((addr), 192,168,1,0)*/ +/*#define PACKET_LIB_QUIET*/ + +/* #define USE_PCAPIF 1 */ +#define LWIP_PORT_INIT_IPADDR(addr) IP4_ADDR((addr), 192,168,1,200) +#define LWIP_PORT_INIT_GW(addr) IP4_ADDR((addr), 192,168,1,1) +#define LWIP_PORT_INIT_NETMASK(addr) IP4_ADDR((addr), 255,255,255,0) + +/* remember to change this MAC address to suit your needs! + the last octet will be increased by netif->num for each netif */ +#define LWIP_MAC_ADDR_BASE {0x00,0x01,0x02,0x03,0x04,0x05} + +/* #define USE_SLIPIF 0 */ +/* #define SIO_USE_COMPORT 0 */ +#ifdef USE_SLIPIF +#if USE_SLIPIF +#define LWIP_PORT_INIT_SLIP1_IPADDR(addr) IP4_ADDR((addr), 192, 168, 2, 2) +#define LWIP_PORT_INIT_SLIP1_GW(addr) IP4_ADDR((addr), 192, 168, 2, 1) +#define LWIP_PORT_INIT_SLIP1_NETMASK(addr) IP4_ADDR((addr), 255, 255, 255, 0) +#if USE_SLIPIF > 1 +#define LWIP_PORT_INIT_SLIP2_IPADDR(addr) IP4_ADDR((addr), 192, 168, 2, 1) +#define LWIP_PORT_INIT_SLIP2_GW(addr) IP4_ADDR((addr), 0, 0, 0, 0) +#define LWIP_PORT_INIT_SLIP2_NETMASK(addr) IP4_ADDR((addr), 255, 255, 255, 0)*/ +#endif /* USE_SLIPIF > 1 */ +#endif /* USE_SLIPIF */ +#endif /* USE_SLIPIF */ + +/* configuration for applications */ + +#define LWIP_CHARGEN_APP 1 +#define LWIP_DNS_APP 1 +#define LWIP_HTTPD_APP LWIP_TCP +/* Set this to 1 to use the netconn http server, + * otherwise the raw api server will be used. */ +/*#define LWIP_HTTPD_APP_NETCONN */ +#define LWIP_NETBIOS_APP LWIP_IPV4 && LWIP_UDP +#define LWIP_NETIO_APP 1 +#define LWIP_MDNS_APP LWIP_UDP +#define LWIP_MQTT_APP LWIP_TCP +#define LWIP_PING_APP 1 +#define LWIP_RTP_APP 1 +#define LWIP_SHELL_APP LWIP_TCP +#define LWIP_SNMP_APP LWIP_UDP +#define LWIP_SNTP_APP LWIP_UDP +#define LWIP_SOCKET_EXAMPLES_APP 1 +#define LWIP_TCPECHO_APP LWIP_TCP +/* Set this to 1 to use the netconn tcpecho server, + * otherwise the raw api server will be used. */ +/*#define LWIP_TCPECHO_APP_NETCONN */ +#define LWIP_TFTP_APP LWIP_UDP +#define LWIP_TFTP_CLIENT_APP LWIP_UDP +#define LWIP_UDPECHO_APP LWIP_UDP +#define LWIP_LWIPERF_APP LWIP_TCP + +#define USE_DHCP LWIP_DHCP +#define USE_AUTOIP LWIP_AUTOIP + +/* define this to your custom application-init function */ +/* #define LWIP_APP_INIT my_app_init() */ diff --git a/middleware/lwip/contrib/examples/example_app/lwipopts.h b/middleware/lwip/contrib/examples/example_app/lwipopts.h new file mode 100644 index 0000000..4721a79 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/lwipopts.h @@ -0,0 +1,326 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_LWIPOPTS_H +#define LWIP_LWIPOPTS_H + +#ifdef LWIP_OPTTEST_FILE +#include "lwipopts_test.h" +#else /* LWIP_OPTTEST_FILE */ + +#define LWIP_IPV4 1 +#define LWIP_IPV6 1 + +#define NO_SYS 0 +#define LWIP_SOCKET (NO_SYS==0) +#define LWIP_NETCONN (NO_SYS==0) +#define LWIP_NETIF_API (NO_SYS==0) + +#define LWIP_IGMP LWIP_IPV4 +#define LWIP_ICMP LWIP_IPV4 + +#define LWIP_SNMP LWIP_UDP +#define MIB2_STATS LWIP_SNMP +#ifdef LWIP_HAVE_MBEDTLS +#define LWIP_SNMP_V3 (LWIP_SNMP) +#endif + +#define LWIP_DNS LWIP_UDP +#define LWIP_MDNS_RESPONDER LWIP_UDP + +#define LWIP_NUM_NETIF_CLIENT_DATA (LWIP_MDNS_RESPONDER) + +#define LWIP_HAVE_LOOPIF 1 +#define LWIP_NETIF_LOOPBACK 1 +#define LWIP_LOOPBACK_MAX_PBUFS 10 + +#define TCP_LISTEN_BACKLOG 1 + +#define LWIP_COMPAT_SOCKETS 1 +#define LWIP_SO_RCVTIMEO 1 +#define LWIP_SO_RCVBUF 1 + +#define LWIP_TCPIP_CORE_LOCKING 1 + +#define LWIP_NETIF_LINK_CALLBACK 1 +#define LWIP_NETIF_STATUS_CALLBACK 1 +#define LWIP_NETIF_EXT_STATUS_CALLBACK 1 + +#ifdef LWIP_DEBUG + +#define LWIP_DBG_MIN_LEVEL 0 +#define PPP_DEBUG LWIP_DBG_OFF +#define MEM_DEBUG LWIP_DBG_OFF +#define MEMP_DEBUG LWIP_DBG_OFF +#define PBUF_DEBUG LWIP_DBG_OFF +#define API_LIB_DEBUG LWIP_DBG_OFF +#define API_MSG_DEBUG LWIP_DBG_OFF +#define TCPIP_DEBUG LWIP_DBG_OFF +#define NETIF_DEBUG LWIP_DBG_OFF +#define SOCKETS_DEBUG LWIP_DBG_OFF +#define DNS_DEBUG LWIP_DBG_OFF +#define AUTOIP_DEBUG LWIP_DBG_OFF +#define DHCP_DEBUG LWIP_DBG_OFF +#define IP_DEBUG LWIP_DBG_OFF +#define IP_REASS_DEBUG LWIP_DBG_OFF +#define ICMP_DEBUG LWIP_DBG_OFF +#define IGMP_DEBUG LWIP_DBG_OFF +#define UDP_DEBUG LWIP_DBG_OFF +#define TCP_DEBUG LWIP_DBG_OFF +#define TCP_INPUT_DEBUG LWIP_DBG_OFF +#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF +#define TCP_RTO_DEBUG LWIP_DBG_OFF +#define TCP_CWND_DEBUG LWIP_DBG_OFF +#define TCP_WND_DEBUG LWIP_DBG_OFF +#define TCP_FR_DEBUG LWIP_DBG_OFF +#define TCP_QLEN_DEBUG LWIP_DBG_OFF +#define TCP_RST_DEBUG LWIP_DBG_OFF +#endif + +#define LWIP_DBG_TYPES_ON (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT) + + +/* ---------- Memory options ---------- */ +/* MEM_ALIGNMENT: should be set to the alignment of the CPU for which + lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2 + byte alignment -> define MEM_ALIGNMENT to 2. */ +/* MSVC port: intel processors don't need 4-byte alignment, + but are faster that way! */ +#define MEM_ALIGNMENT 4U + +/* MEM_SIZE: the size of the heap memory. If the application will send +a lot of data that needs to be copied, this should be set high. */ +#define MEM_SIZE 10240 + +/* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application + sends a lot of data out of ROM (or other static memory), this + should be set high. */ +#define MEMP_NUM_PBUF 16 +/* MEMP_NUM_RAW_PCB: the number of UDP protocol control blocks. One + per active RAW "connection". */ +#define MEMP_NUM_RAW_PCB 3 +/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One + per active UDP "connection". */ +#define MEMP_NUM_UDP_PCB 8 +/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP + connections. */ +#define MEMP_NUM_TCP_PCB 5 +/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP + connections. */ +#define MEMP_NUM_TCP_PCB_LISTEN 8 +/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP + segments. */ +#define MEMP_NUM_TCP_SEG 16 +/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active + timeouts. */ +#define MEMP_NUM_SYS_TIMEOUT 17 + +/* The following four are used only with the sequential API and can be + set to 0 if the application only will use the raw API. */ +/* MEMP_NUM_NETBUF: the number of struct netbufs. */ +#define MEMP_NUM_NETBUF 2 +/* MEMP_NUM_NETCONN: the number of struct netconns. */ +#define MEMP_NUM_NETCONN 12 +/* MEMP_NUM_TCPIP_MSG_*: the number of struct tcpip_msg, which is used + for sequential API communication and incoming packets. Used in + src/api/tcpip.c. */ +#define MEMP_NUM_TCPIP_MSG_API 16 +#define MEMP_NUM_TCPIP_MSG_INPKT 16 + + +/* ---------- Pbuf options ---------- */ +/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */ +#define PBUF_POOL_SIZE 120 + +/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */ +#define PBUF_POOL_BUFSIZE 256 + +/** SYS_LIGHTWEIGHT_PROT + * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection + * for certain critical regions during buffer allocation, deallocation and memory + * allocation and deallocation. + */ +#define SYS_LIGHTWEIGHT_PROT (NO_SYS==0) + + +/* ---------- TCP options ---------- */ +#define LWIP_TCP 1 +#define TCP_TTL 255 + +#define LWIP_ALTCP (LWIP_TCP) +#ifdef LWIP_HAVE_MBEDTLS +#define LWIP_ALTCP_TLS (LWIP_TCP) +#define LWIP_ALTCP_TLS_MBEDTLS (LWIP_TCP) +#endif + + +/* Controls if TCP should queue segments that arrive out of + order. Define to 0 if your device is low on memory. */ +#define TCP_QUEUE_OOSEQ 1 + +/* TCP Maximum segment size. */ +#define TCP_MSS 1024 + +/* TCP sender buffer space (bytes). */ +#define TCP_SND_BUF 2048 + +/* TCP sender buffer space (pbufs). This must be at least = 2 * + TCP_SND_BUF/TCP_MSS for things to work. */ +#define TCP_SND_QUEUELEN (4 * TCP_SND_BUF/TCP_MSS) + +/* TCP writable space (bytes). This must be less than or equal + to TCP_SND_BUF. It is the amount of space which must be + available in the tcp snd_buf for select to return writable */ +#define TCP_SNDLOWAT (TCP_SND_BUF/2) + +/* TCP receive window. */ +#define TCP_WND (20 * 1024) + +/* Maximum number of retransmissions of data segments. */ +#define TCP_MAXRTX 12 + +/* Maximum number of retransmissions of SYN segments. */ +#define TCP_SYNMAXRTX 4 + + +/* ---------- ARP options ---------- */ +#define LWIP_ARP 1 +#define ARP_TABLE_SIZE 10 +#define ARP_QUEUEING 1 + + +/* ---------- IP options ---------- */ +/* Define IP_FORWARD to 1 if you wish to have the ability to forward + IP packets across network interfaces. If you are going to run lwIP + on a device with only one network interface, define this to 0. */ +#define IP_FORWARD 1 + +/* IP reassembly and segmentation.These are orthogonal even + * if they both deal with IP fragments */ +#define IP_REASSEMBLY 1 +#define IP_REASS_MAX_PBUFS (10 * ((1500 + PBUF_POOL_BUFSIZE - 1) / PBUF_POOL_BUFSIZE)) +#define MEMP_NUM_REASSDATA IP_REASS_MAX_PBUFS +#define IP_FRAG 1 +#define IPV6_FRAG_COPYHEADER 1 + +/* ---------- ICMP options ---------- */ +#define ICMP_TTL 255 + + +/* ---------- DHCP options ---------- */ +/* Define LWIP_DHCP to 1 if you want DHCP configuration of + interfaces. */ +#define LWIP_DHCP LWIP_UDP + +/* 1 if you want to do an ARP check on the offered address + (recommended). */ +#define DHCP_DOES_ARP_CHECK (LWIP_DHCP) + + +/* ---------- AUTOIP options ------- */ +#define LWIP_AUTOIP (LWIP_DHCP) +#define LWIP_DHCP_AUTOIP_COOP (LWIP_DHCP && LWIP_AUTOIP) + + +/* ---------- UDP options ---------- */ +#define LWIP_UDP 1 +#define LWIP_UDPLITE LWIP_UDP +#define UDP_TTL 255 + + +/* ---------- RAW options ---------- */ +#define LWIP_RAW 1 + + +/* ---------- Statistics options ---------- */ + +#define LWIP_STATS 1 +#define LWIP_STATS_DISPLAY 1 + +#if LWIP_STATS +#define LINK_STATS 1 +#define IP_STATS 1 +#define ICMP_STATS 1 +#define IGMP_STATS 1 +#define IPFRAG_STATS 1 +#define UDP_STATS 1 +#define TCP_STATS 1 +#define MEM_STATS 1 +#define MEMP_STATS 1 +#define PBUF_STATS 1 +#define SYS_STATS 1 +#endif /* LWIP_STATS */ + +/* ---------- NETBIOS options ---------- */ +#define LWIP_NETBIOS_RESPOND_NAME_QUERY 1 + +/* ---------- PPP options ---------- */ + +#define PPP_SUPPORT 1 /* Set > 0 for PPP */ + +#if PPP_SUPPORT + +#define NUM_PPP 1 /* Max PPP sessions. */ + + +/* Select modules to enable. Ideally these would be set in the makefile but + * we're limited by the command line length so you need to modify the settings + * in this file. + */ +#define PPPOE_SUPPORT 1 +#define PPPOS_SUPPORT 1 + +#define PAP_SUPPORT 1 /* Set > 0 for PAP. */ +#define CHAP_SUPPORT 1 /* Set > 0 for CHAP. */ +#define MSCHAP_SUPPORT 0 /* Set > 0 for MSCHAP */ +#define CBCP_SUPPORT 0 /* Set > 0 for CBCP (NOT FUNCTIONAL!) */ +#define CCP_SUPPORT 0 /* Set > 0 for CCP */ +#define VJ_SUPPORT 1 /* Set > 0 for VJ header compression. */ +#define MD5_SUPPORT 1 /* Set > 0 for MD5 (see also CHAP) */ + +#endif /* PPP_SUPPORT */ + +#endif /* LWIP_OPTTEST_FILE */ + +/* The following defines must be done even in OPTTEST mode: */ + +#if !defined(NO_SYS) || !NO_SYS /* default is 0 */ +void sys_check_core_locking(void); +#define LWIP_ASSERT_CORE_LOCKED() sys_check_core_locking() +#endif + +#ifndef LWIP_PLATFORM_ASSERT +/* Define LWIP_PLATFORM_ASSERT to something to catch missing stdio.h includes */ +void lwip_example_app_platform_assert(const char *msg, int line, const char *file); +#define LWIP_PLATFORM_ASSERT(x) lwip_example_app_platform_assert(x, __LINE__, __FILE__) +#endif + +#endif /* LWIP_LWIPOPTS_H */ diff --git a/middleware/lwip/contrib/examples/example_app/lwippools.h b/middleware/lwip/contrib/examples/example_app/lwippools.h new file mode 100644 index 0000000..f58aa59 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/lwippools.h @@ -0,0 +1,20 @@ +/* OPTIONAL: Pools to replace heap allocation + * Optional: Pools can be used instead of the heap for mem_malloc. If + * so, these should be defined here, in increasing order according to + * the pool element size. + * + * LWIP_MALLOC_MEMPOOL(number_elements, element_size) + */ +#if MEM_USE_POOLS +LWIP_MALLOC_MEMPOOL_START +LWIP_MALLOC_MEMPOOL(100, 256) +LWIP_MALLOC_MEMPOOL(50, 512) +LWIP_MALLOC_MEMPOOL(20, 1024) +LWIP_MALLOC_MEMPOOL(20, 1536) +LWIP_MALLOC_MEMPOOL_END +#endif /* MEM_USE_POOLS */ + +/* Optional: Your custom pools can go here if you would like to use + * lwIP's memory pools for anything else. + */ +LWIP_MEMPOOL(SYS_MBOX, 22, 100, "SYS_MBOX") diff --git a/middleware/lwip/contrib/examples/example_app/ppp_settings.h b/middleware/lwip/contrib/examples/example_app/ppp_settings.h new file mode 100644 index 0000000..7b3ee1a --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/ppp_settings.h @@ -0,0 +1,6 @@ +#ifdef _MSC_VER +#pragma warning (disable: 4242) /* PPP only: conversion from 'x' to 'y', possible loss of data */ +#pragma warning (disable: 4244) /* PPP only: conversion from 'x' to 'y', possible loss of data (again?) */ +#pragma warning (disable: 4310) /* PPP only: cast truncates constant value */ +#pragma warning (disable: 4706) /* PPP only: assignment within conditional expression */ +#endif /* MSC_VER */ diff --git a/middleware/lwip/contrib/examples/example_app/test.c b/middleware/lwip/contrib/examples/example_app/test.c new file mode 100644 index 0000000..95cca1f --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test.c @@ -0,0 +1,773 @@ +/* + * Copyright (c) 2001,2002 Florian Schulze. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the authors nor the names of the contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * test.c - This file is part of lwIP test + * + */ + +/* C runtime includes */ +#include +#include +#include +#include +#include + +/* lwIP core includes */ +#include "lwip/opt.h" + +#include "lwip/sys.h" +#include "lwip/timeouts.h" +#include "lwip/debug.h" +#include "lwip/stats.h" +#include "lwip/init.h" +#include "lwip/tcpip.h" +#include "lwip/netif.h" +#include "lwip/api.h" + +#include "lwip/tcp.h" +#include "lwip/udp.h" +#include "lwip/dns.h" +#include "lwip/dhcp.h" +#include "lwip/autoip.h" + +/* lwIP netif includes */ +#include "lwip/etharp.h" +#include "netif/ethernet.h" + +/* applications includes */ +#include "lwip/apps/netbiosns.h" +#include "lwip/apps/httpd.h" +#include "apps/httpserver/httpserver-netconn.h" +#include "apps/netio/netio.h" +#include "apps/ping/ping.h" +#include "apps/rtp/rtp.h" +#include "apps/chargen/chargen.h" +#include "apps/shell/shell.h" +#include "apps/tcpecho/tcpecho.h" +#include "apps/udpecho/udpecho.h" +#include "apps/tcpecho_raw/tcpecho_raw.h" +#include "apps/socket_examples/socket_examples.h" + +#include "examples/lwiperf/lwiperf_example.h" +#include "examples/mdns/mdns_example.h" +#include "examples/snmp/snmp_example.h" +#include "examples/tftp/tftp_example.h" +#include "examples/sntp/sntp_example.h" +#include "examples/mqtt/mqtt_example.h" + +#include "examples/httpd/cgi_example/cgi_example.h" +#include "examples/httpd/fs_example/fs_example.h" +#include "examples/httpd/https_example/https_example.h" +#include "examples/httpd/ssi_example/ssi_example.h" + +#include "default_netif.h" + +#if NO_SYS +/* ... then we need information about the timer intervals: */ +#include "lwip/ip4_frag.h" +#include "lwip/igmp.h" +#endif /* NO_SYS */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT +/* PPP includes */ +#include "lwip/sio.h" +#include "netif/ppp/pppapi.h" +#include "netif/ppp/pppos.h" +#include "netif/ppp/pppoe.h" +#if !NO_SYS && !LWIP_PPP_API +#error With NO_SYS==0, LWIP_PPP_API==1 is required. +#endif +#endif /* PPP_SUPPORT */ + +/* include the port-dependent configuration */ +#include "lwipcfg.h" + +#ifndef LWIP_EXAMPLE_APP_ABORT +#define LWIP_EXAMPLE_APP_ABORT() 0 +#endif + +/** Define this to 1 to enable a port-specific ethernet interface as default interface. */ +#ifndef USE_DEFAULT_ETH_NETIF +#define USE_DEFAULT_ETH_NETIF 1 +#endif + +/** Define this to 1 to enable a PPP interface. */ +#ifndef USE_PPP +#define USE_PPP 0 +#endif + +/** Define this to 1 or 2 to support 1 or 2 SLIP interfaces. */ +#ifndef USE_SLIPIF +#define USE_SLIPIF 0 +#endif + +/** Use an ethernet adapter? Default to enabled if port-specific ethernet netif or PPPoE are used. */ +#ifndef USE_ETHERNET +#define USE_ETHERNET (USE_DEFAULT_ETH_NETIF || PPPOE_SUPPORT) +#endif + +/** Use an ethernet adapter for TCP/IP? By default only if port-specific ethernet netif is used. */ +#ifndef USE_ETHERNET_TCPIP +#define USE_ETHERNET_TCPIP (USE_DEFAULT_ETH_NETIF) +#endif + +#if USE_SLIPIF +#include +#endif /* USE_SLIPIF */ + +#ifndef USE_DHCP +#define USE_DHCP LWIP_DHCP +#endif +#ifndef USE_AUTOIP +#define USE_AUTOIP LWIP_AUTOIP +#endif + +/* globales variables for netifs */ +#if USE_ETHERNET +#if LWIP_DHCP +/* dhcp struct for the ethernet netif */ +struct dhcp netif_dhcp; +#endif /* LWIP_DHCP */ +#if LWIP_AUTOIP +/* autoip struct for the ethernet netif */ +struct autoip netif_autoip; +#endif /* LWIP_AUTOIP */ +#endif /* USE_ETHERNET */ +#if USE_PPP +/* THE PPP PCB */ +ppp_pcb *ppp; +/* THE PPP interface */ +struct netif ppp_netif; +/* THE PPP descriptor */ +u8_t sio_idx = 0; +sio_fd_t ppp_sio; +#endif /* USE_PPP */ +#if USE_SLIPIF +struct netif slipif1; +#if USE_SLIPIF > 1 +struct netif slipif2; +#endif /* USE_SLIPIF > 1 */ +#endif /* USE_SLIPIF */ + + +#if USE_PPP +static void +pppLinkStatusCallback(ppp_pcb *pcb, int errCode, void *ctx) +{ + struct netif *pppif = ppp_netif(pcb); + LWIP_UNUSED_ARG(ctx); + + switch(errCode) { + case PPPERR_NONE: { /* No error. */ + printf("pppLinkStatusCallback: PPPERR_NONE\n"); +#if LWIP_IPV4 + printf(" our_ipaddr = %s\n", ip4addr_ntoa(netif_ip4_addr(pppif))); + printf(" his_ipaddr = %s\n", ip4addr_ntoa(netif_ip4_gw(pppif))); + printf(" netmask = %s\n", ip4addr_ntoa(netif_ip4_netmask(pppif))); +#endif /* LWIP_IPV4 */ +#if LWIP_DNS + printf(" dns1 = %s\n", ipaddr_ntoa(dns_getserver(0))); + printf(" dns2 = %s\n", ipaddr_ntoa(dns_getserver(1))); +#endif /* LWIP_DNS */ +#if PPP_IPV6_SUPPORT + printf(" our6_ipaddr = %s\n", ip6addr_ntoa(netif_ip6_addr(pppif, 0))); +#endif /* PPP_IPV6_SUPPORT */ + break; + } + case PPPERR_PARAM: { /* Invalid parameter. */ + printf("pppLinkStatusCallback: PPPERR_PARAM\n"); + break; + } + case PPPERR_OPEN: { /* Unable to open PPP session. */ + printf("pppLinkStatusCallback: PPPERR_OPEN\n"); + break; + } + case PPPERR_DEVICE: { /* Invalid I/O device for PPP. */ + printf("pppLinkStatusCallback: PPPERR_DEVICE\n"); + break; + } + case PPPERR_ALLOC: { /* Unable to allocate resources. */ + printf("pppLinkStatusCallback: PPPERR_ALLOC\n"); + break; + } + case PPPERR_USER: { /* User interrupt. */ + printf("pppLinkStatusCallback: PPPERR_USER\n"); + break; + } + case PPPERR_CONNECT: { /* Connection lost. */ + printf("pppLinkStatusCallback: PPPERR_CONNECT\n"); + break; + } + case PPPERR_AUTHFAIL: { /* Failed authentication challenge. */ + printf("pppLinkStatusCallback: PPPERR_AUTHFAIL\n"); + break; + } + case PPPERR_PROTOCOL: { /* Failed to meet protocol. */ + printf("pppLinkStatusCallback: PPPERR_PROTOCOL\n"); + break; + } + case PPPERR_PEERDEAD: { /* Connection timeout */ + printf("pppLinkStatusCallback: PPPERR_PEERDEAD\n"); + break; + } + case PPPERR_IDLETIMEOUT: { /* Idle Timeout */ + printf("pppLinkStatusCallback: PPPERR_IDLETIMEOUT\n"); + break; + } + case PPPERR_CONNECTTIME: { /* Max connect time reached */ + printf("pppLinkStatusCallback: PPPERR_CONNECTTIME\n"); + break; + } + case PPPERR_LOOPBACK: { /* Loopback detected */ + printf("pppLinkStatusCallback: PPPERR_LOOPBACK\n"); + break; + } + default: { + printf("pppLinkStatusCallback: unknown errCode %d\n", errCode); + break; + } + } +} + +#if PPPOS_SUPPORT +static u32_t +ppp_output_cb(ppp_pcb *pcb, u8_t *data, u32_t len, void *ctx) +{ + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(ctx); + return sio_write(ppp_sio, data, len); +} +#endif /* PPPOS_SUPPORT */ +#endif /* USE_PPP */ + +#if LWIP_NETIF_STATUS_CALLBACK +static void +status_callback(struct netif *state_netif) +{ + if (netif_is_up(state_netif)) { +#if LWIP_IPV4 + printf("status_callback==UP, local interface IP is %s\n", ip4addr_ntoa(netif_ip4_addr(state_netif))); +#else + printf("status_callback==UP\n"); +#endif + } else { + printf("status_callback==DOWN\n"); + } +} +#endif /* LWIP_NETIF_STATUS_CALLBACK */ + +#if LWIP_NETIF_LINK_CALLBACK +static void +link_callback(struct netif *state_netif) +{ + if (netif_is_link_up(state_netif)) { + printf("link_callback==UP\n"); + } else { + printf("link_callback==DOWN\n"); + } +} +#endif /* LWIP_NETIF_LINK_CALLBACK */ + +/* This function initializes all network interfaces */ +static void +test_netif_init(void) +{ +#if LWIP_IPV4 && USE_ETHERNET + ip4_addr_t ipaddr, netmask, gw; +#endif /* LWIP_IPV4 && USE_ETHERNET */ +#if USE_SLIPIF + u8_t num_slip1 = 0; +#if LWIP_IPV4 + ip4_addr_t ipaddr_slip1, netmask_slip1, gw_slip1; +#endif +#if USE_SLIPIF > 1 + u8_t num_slip2 = 1; +#if LWIP_IPV4 + ip4_addr_t ipaddr_slip2, netmask_slip2, gw_slip2; +#endif +#endif /* USE_SLIPIF > 1 */ +#endif /* USE_SLIPIF */ +#if USE_DHCP || USE_AUTOIP + err_t err; +#endif + +#if USE_PPP + const char *username = NULL, *password = NULL; +#ifdef PPP_USERNAME + username = PPP_USERNAME; +#endif +#ifdef PPP_PASSWORD + password = PPP_PASSWORD; +#endif + printf("ppp_connect: COM%d\n", (int)sio_idx); +#if PPPOS_SUPPORT + ppp_sio = sio_open(sio_idx); + if (ppp_sio == NULL) { + printf("sio_open error\n"); + } else { + ppp = pppos_create(&ppp_netif, ppp_output_cb, pppLinkStatusCallback, NULL); + if (ppp == NULL) { + printf("pppos_create error\n"); + } else { + ppp_set_auth(ppp, PPPAUTHTYPE_ANY, username, password); + ppp_connect(ppp, 0); + } + } +#endif /* PPPOS_SUPPORT */ +#endif /* USE_PPP */ + +#if USE_ETHERNET +#if LWIP_IPV4 + ip4_addr_set_zero(&gw); + ip4_addr_set_zero(&ipaddr); + ip4_addr_set_zero(&netmask); +#if USE_ETHERNET_TCPIP +#if USE_DHCP + printf("Starting lwIP, local interface IP is dhcp-enabled\n"); +#elif USE_AUTOIP + printf("Starting lwIP, local interface IP is autoip-enabled\n"); +#else /* USE_DHCP */ + LWIP_PORT_INIT_GW(&gw); + LWIP_PORT_INIT_IPADDR(&ipaddr); + LWIP_PORT_INIT_NETMASK(&netmask); + printf("Starting lwIP, local interface IP is %s\n", ip4addr_ntoa(&ipaddr)); +#endif /* USE_DHCP */ +#endif /* USE_ETHERNET_TCPIP */ +#else /* LWIP_IPV4 */ + printf("Starting lwIP, IPv4 disable\n"); +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV4 + init_default_netif(&ipaddr, &netmask, &gw); +#else + init_default_netif(); +#endif +#if LWIP_IPV6 + netif_create_ip6_linklocal_address(netif_default, 1); + printf("ip6 linklocal address: %s\n", ip6addr_ntoa(netif_ip6_addr(netif_default, 0))); +#endif /* LWIP_IPV6 */ +#if LWIP_NETIF_STATUS_CALLBACK + netif_set_status_callback(netif_default, status_callback); +#endif /* LWIP_NETIF_STATUS_CALLBACK */ +#if LWIP_NETIF_LINK_CALLBACK + netif_set_link_callback(netif_default, link_callback); +#endif /* LWIP_NETIF_LINK_CALLBACK */ + +#if USE_ETHERNET_TCPIP +#if LWIP_AUTOIP + autoip_set_struct(netif_default, &netif_autoip); +#endif /* LWIP_AUTOIP */ +#if LWIP_DHCP + dhcp_set_struct(netif_default, &netif_dhcp); +#endif /* LWIP_DHCP */ + netif_set_up(netif_default); +#if USE_DHCP + err = dhcp_start(netif_default); + LWIP_ASSERT("dhcp_start failed", err == ERR_OK); +#elif USE_AUTOIP + err = autoip_start(netif_default); + LWIP_ASSERT("autoip_start failed", err == ERR_OK); +#endif /* USE_DHCP */ +#else /* USE_ETHERNET_TCPIP */ + /* Use ethernet for PPPoE only */ + netif.flags &= ~(NETIF_FLAG_ETHARP | NETIF_FLAG_IGMP); /* no ARP */ + netif.flags |= NETIF_FLAG_ETHERNET; /* but pure ethernet */ +#endif /* USE_ETHERNET_TCPIP */ + +#if USE_PPP && PPPOE_SUPPORT + /* start PPPoE after ethernet netif is added! */ + ppp = pppoe_create(&ppp_netif, netif_default, NULL, NULL, pppLinkStatusCallback, NULL); + if (ppp == NULL) { + printf("pppoe_create error\n"); + } else { + ppp_set_auth(ppp, PPPAUTHTYPE_ANY, username, password); + ppp_connect(ppp, 0); + } +#endif /* USE_PPP && PPPOE_SUPPORT */ + +#endif /* USE_ETHERNET */ +#if USE_SLIPIF +#if LWIP_IPV4 +#define SLIP1_ADDRS &ipaddr_slip1, &netmask_slip1, &gw_slip1, + LWIP_PORT_INIT_SLIP1_IPADDR(&ipaddr_slip1); + LWIP_PORT_INIT_SLIP1_GW(&gw_slip1); + LWIP_PORT_INIT_SLIP1_NETMASK(&netmask_slip1); + printf("Starting lwIP slipif, local interface IP is %s\n", ip4addr_ntoa(&ipaddr_slip1)); +#else +#define SLIP1_ADDRS + printf("Starting lwIP slipif\n"); +#endif +#if defined(SIO_USE_COMPORT) && SIO_USE_COMPORT + num_slip1++; /* COM ports cannot be 0-based */ +#endif + netif_add(&slipif1, SLIP1_ADDRS &num_slip1, slipif_init, ip_input); +#if !USE_ETHERNET + netif_set_default(&slipif1); +#endif /* !USE_ETHERNET */ +#if LWIP_IPV6 + netif_create_ip6_linklocal_address(&slipif1, 1); + printf("SLIP ip6 linklocal address: %s\n", ip6addr_ntoa(netif_ip6_addr(&slipif1, 0))); +#endif /* LWIP_IPV6 */ +#if LWIP_NETIF_STATUS_CALLBACK + netif_set_status_callback(&slipif1, status_callback); +#endif /* LWIP_NETIF_STATUS_CALLBACK */ +#if LWIP_NETIF_LINK_CALLBACK + netif_set_link_callback(&slipif1, link_callback); +#endif /* LWIP_NETIF_LINK_CALLBACK */ + netif_set_up(&slipif1); + +#if USE_SLIPIF > 1 +#if LWIP_IPV4 +#define SLIP2_ADDRS &ipaddr_slip2, &netmask_slip2, &gw_slip2, + LWIP_PORT_INIT_SLIP2_IPADDR(&ipaddr_slip2); + LWIP_PORT_INIT_SLIP2_GW(&gw_slip2); + LWIP_PORT_INIT_SLIP2_NETMASK(&netmask_slip2); + printf("Starting lwIP SLIP if #2, local interface IP is %s\n", ip4addr_ntoa(&ipaddr_slip2)); +#else +#define SLIP2_ADDRS + printf("Starting lwIP SLIP if #2\n"); +#endif +#if defined(SIO_USE_COMPORT) && SIO_USE_COMPORT + num_slip2++; /* COM ports cannot be 0-based */ +#endif + netif_add(&slipif2, SLIP2_ADDRS &num_slip2, slipif_init, ip_input); +#if LWIP_IPV6 + netif_create_ip6_linklocal_address(&slipif1, 1); + printf("SLIP2 ip6 linklocal address: "); + ip6_addr_debug_print(0xFFFFFFFF & ~LWIP_DBG_HALT, netif_ip6_addr(&slipif2, 0)); + printf("\n"); +#endif /* LWIP_IPV6 */ +#if LWIP_NETIF_STATUS_CALLBACK + netif_set_status_callback(&slipif2, status_callback); +#endif /* LWIP_NETIF_STATUS_CALLBACK */ +#if LWIP_NETIF_LINK_CALLBACK + netif_set_link_callback(&slipif2, link_callback); +#endif /* LWIP_NETIF_LINK_CALLBACK */ + netif_set_up(&slipif2); +#endif /* USE_SLIPIF > 1*/ +#endif /* USE_SLIPIF */ +} + +#if LWIP_DNS_APP && LWIP_DNS +static void +dns_found(const char *name, const ip_addr_t *addr, void *arg) +{ + LWIP_UNUSED_ARG(arg); + printf("%s: %s\n", name, addr ? ipaddr_ntoa(addr) : ""); +} + +static void +dns_dorequest(void *arg) +{ + const char* dnsname = "3com.com"; + ip_addr_t dnsresp; + LWIP_UNUSED_ARG(arg); + + if (dns_gethostbyname(dnsname, &dnsresp, dns_found, 0) == ERR_OK) { + dns_found(dnsname, &dnsresp, 0); + } +} +#endif /* LWIP_DNS_APP && LWIP_DNS */ + +/* This function initializes applications */ +static void +apps_init(void) +{ +#if LWIP_DNS_APP && LWIP_DNS + /* wait until the netif is up (for dhcp, autoip or ppp) */ + sys_timeout(5000, dns_dorequest, NULL); +#endif /* LWIP_DNS_APP && LWIP_DNS */ + +#if LWIP_CHARGEN_APP && LWIP_SOCKET + chargen_init(); +#endif /* LWIP_CHARGEN_APP && LWIP_SOCKET */ + +#if LWIP_PING_APP && LWIP_RAW && LWIP_ICMP + ping_init(&netif_default->gw); +#endif /* LWIP_PING_APP && LWIP_RAW && LWIP_ICMP */ + +#if LWIP_NETBIOS_APP && LWIP_UDP + netbiosns_init(); +#ifndef NETBIOS_LWIP_NAME +#if LWIP_NETIF_HOSTNAME + netbiosns_set_name(netif_default->hostname); +#else + netbiosns_set_name("NETBIOSLWIPDEV"); +#endif +#endif +#endif /* LWIP_NETBIOS_APP && LWIP_UDP */ + +#if LWIP_HTTPD_APP && LWIP_TCP +#ifdef LWIP_HTTPD_APP_NETCONN + http_server_netconn_init(); +#else /* LWIP_HTTPD_APP_NETCONN */ +#if defined(LWIP_HTTPD_EXAMPLE_CUSTOMFILES) && LWIP_HTTPD_EXAMPLE_CUSTOMFILES && defined(LWIP_HTTPD_EXAMPLE_CUSTOMFILES_ROOTDIR) + fs_ex_init(LWIP_HTTPD_EXAMPLE_CUSTOMFILES_ROOTDIR); +#endif + httpd_init(); +#if defined(LWIP_HTTPD_EXAMPLE_SSI_SIMPLE) && LWIP_HTTPD_EXAMPLE_SSI_SIMPLE + ssi_ex_init(); +#endif +#if defined(LWIP_HTTPD_EXAMPLE_CGI_SIMPLE) && LWIP_HTTPD_EXAMPLE_CGI_SIMPLE + cgi_ex_init(); +#endif +#if defined(LWIP_HTTPD_EXAMPLE_HTTPS) && LWIP_HTTPD_EXAMPLE_HTTPS + https_ex_init(); +#endif +#endif /* LWIP_HTTPD_APP_NETCONN */ +#endif /* LWIP_HTTPD_APP && LWIP_TCP */ + +#if LWIP_NETIO_APP && LWIP_TCP + netio_init(); +#endif /* LWIP_NETIO_APP && LWIP_TCP */ + +#if LWIP_RTP_APP && LWIP_SOCKET && LWIP_IGMP + rtp_init(); +#endif /* LWIP_RTP_APP && LWIP_SOCKET && LWIP_IGMP */ + +#if LWIP_SHELL_APP && LWIP_NETCONN + shell_init(); +#endif /* LWIP_SHELL_APP && LWIP_NETCONN */ +#if LWIP_TCPECHO_APP +#if LWIP_NETCONN && defined(LWIP_TCPECHO_APP_NETCONN) + tcpecho_init(); +#else /* LWIP_NETCONN && defined(LWIP_TCPECHO_APP_NETCONN) */ + tcpecho_raw_init(); +#endif +#endif /* LWIP_TCPECHO_APP && LWIP_NETCONN */ +#if LWIP_UDPECHO_APP && LWIP_NETCONN + udpecho_init(); +#endif /* LWIP_UDPECHO_APP && LWIP_NETCONN */ +#if LWIP_SOCKET_EXAMPLES_APP && LWIP_SOCKET + socket_examples_init(); +#endif /* LWIP_SOCKET_EXAMPLES_APP && LWIP_SOCKET */ +#if LWIP_MDNS_APP + mdns_example_init(); +#endif +#if LWIP_SNMP_APP + snmp_example_init(); +#endif +#if LWIP_SNTP_APP + sntp_example_init(); +#endif +#if LWIP_TFTP_APP + tftp_example_init_server(); +#endif +#if LWIP_TFTP_CLIENT_APP + tftp_example_init_client(); +#endif +#if LWIP_LWIPERF_APP + lwiperf_example_init(); +#endif +#if LWIP_MQTT_APP + mqtt_example_init(); +#endif + +#ifdef LWIP_APP_INIT + LWIP_APP_INIT(); +#endif +} + +/* This function initializes this lwIP test. When NO_SYS=1, this is done in + * the main_loop context (there is no other one), when NO_SYS=0, this is done + * in the tcpip_thread context */ +static void +test_init(void * arg) +{ /* remove compiler warning */ +#if NO_SYS + LWIP_UNUSED_ARG(arg); +#else /* NO_SYS */ + sys_sem_t *init_sem; + LWIP_ASSERT("arg != NULL", arg != NULL); + init_sem = (sys_sem_t*)arg; +#endif /* NO_SYS */ + + /* init randomizer again (seed per thread) */ + srand((unsigned int)time(0)); + + /* init network interfaces */ + test_netif_init(); + + /* init apps */ + apps_init(); + +#if !NO_SYS + sys_sem_signal(init_sem); +#endif /* !NO_SYS */ +} + +/* This is somewhat different to other ports: we have a main loop here: + * a dedicated task that waits for packets to arrive. This would normally be + * done from interrupt context with embedded hardware, but we don't get an + * interrupt in windows for that :-) */ +static void +main_loop(void) +{ +#if !NO_SYS + err_t err; + sys_sem_t init_sem; +#endif /* NO_SYS */ +#if USE_PPP +#if !USE_ETHERNET + int count; + u8_t rxbuf[1024]; +#endif + volatile int callClosePpp = 0; +#endif /* USE_PPP */ + + /* initialize lwIP stack, network interfaces and applications */ +#if NO_SYS + lwip_init(); + test_init(NULL); +#else /* NO_SYS */ + err = sys_sem_new(&init_sem, 0); + LWIP_ASSERT("failed to create init_sem", err == ERR_OK); + LWIP_UNUSED_ARG(err); + tcpip_init(test_init, &init_sem); + /* we have to wait for initialization to finish before + * calling update_adapter()! */ + sys_sem_wait(&init_sem); + sys_sem_free(&init_sem); +#endif /* NO_SYS */ + +#if (LWIP_SOCKET || LWIP_NETCONN) && LWIP_NETCONN_SEM_PER_THREAD + netconn_thread_init(); +#endif + + /* MAIN LOOP for driver update (and timers if NO_SYS) */ + while (!LWIP_EXAMPLE_APP_ABORT()) { +#if NO_SYS + /* handle timers (already done in tcpip.c when NO_SYS=0) */ + sys_check_timeouts(); +#endif /* NO_SYS */ + +#if USE_ETHERNET + default_netif_poll(); +#else /* USE_ETHERNET */ + /* try to read characters from serial line and pass them to PPPoS */ + count = sio_read(ppp_sio, (u8_t*)rxbuf, 1024); + if(count > 0) { + pppos_input(ppp, rxbuf, count); + } else { + /* nothing received, give other tasks a chance to run */ + sys_msleep(1); + } + +#endif /* USE_ETHERNET */ +#if USE_SLIPIF + slipif_poll(&slipif1); +#if USE_SLIPIF > 1 + slipif_poll(&slipif2); +#endif /* USE_SLIPIF > 1 */ +#endif /* USE_SLIPIF */ +#if ENABLE_LOOPBACK && !LWIP_NETIF_LOOPBACK_MULTITHREADING + /* check for loopback packets on all netifs */ + netif_poll_all(); +#endif /* ENABLE_LOOPBACK && !LWIP_NETIF_LOOPBACK_MULTITHREADING */ +#if USE_PPP + { + int do_hup = 0; + if(do_hup) { + ppp_close(ppp, 1); + do_hup = 0; + } + } + if(callClosePpp && ppp) { + /* make sure to disconnect PPP before stopping the program... */ + callClosePpp = 0; +#if NO_SYS + ppp_close(ppp, 0); +#else + pppapi_close(ppp, 0); +#endif + ppp = NULL; + } +#endif /* USE_PPP */ + } + +#if USE_PPP + if(ppp) { + u32_t started; + printf("Closing PPP connection...\n"); + /* make sure to disconnect PPP before stopping the program... */ +#if NO_SYS + ppp_close(ppp, 0); +#else + pppapi_close(ppp, 0); +#endif + ppp = NULL; + /* Wait for some time to let PPP finish... */ + started = sys_now(); + do + { +#if USE_ETHERNET + default_netif_poll(); +#endif + /* @todo: need a better check here: only wait until PPP is down */ + } while(sys_now() - started < 5000); + } +#endif /* USE_PPP */ +#if (LWIP_SOCKET || LWIP_NETCONN) && LWIP_NETCONN_SEM_PER_THREAD + netconn_thread_cleanup(); +#endif +#if USE_ETHERNET + default_netif_shutdown(); +#endif /* USE_ETHERNET */ +} + +#if USE_PPP && PPPOS_SUPPORT +int main(int argc, char **argv) +#else /* USE_PPP && PPPOS_SUPPORT */ +int main(void) +#endif /* USE_PPP && PPPOS_SUPPORT */ +{ +#if USE_PPP && PPPOS_SUPPORT + if(argc > 1) { + sio_idx = (u8_t)atoi(argv[1]); + } + printf("Using serial port %d for PPP\n", sio_idx); +#endif /* USE_PPP && PPPOS_SUPPORT */ + /* no stdio-buffering, please! */ + setvbuf(stdout, NULL,_IONBF, 0); + + main_loop(); + + return 0; +} + +/* This function is only required to prevent arch.h including stdio.h + * (which it does if LWIP_PLATFORM_ASSERT is undefined) + */ +void lwip_example_app_platform_assert(const char *msg, int line, const char *file) +{ + printf("Assertion \"%s\" failed at line %d in %s\n", msg, line, file); + fflush(NULL); + abort(); +} diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_default.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_default.h new file mode 100644 index 0000000..67b69d2 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_default.h @@ -0,0 +1,295 @@ +/* test an lwipopts.h file with default contents */ +#define NO_SYS 0 +#define NO_SYS_NO_TIMERS 0 +#define LWIP_TIMERS 1 +#define LWIP_TIMERS_CUSTOM 0 +#define LWIP_MPU_COMPATIBLE 0 +#define LWIP_TCPIP_CORE_LOCKING 1 +#define LWIP_TCPIP_CORE_LOCKING_INPUT 0 +#define SYS_LIGHTWEIGHT_PROT 1 +#define MEM_LIBC_MALLOC 0 +#define MEMP_MEM_MALLOC 0 +#define MEMP_MEM_INIT 0 +#define MEM_ALIGNMENT 1 +#define MEM_SIZE 1600 +#define MEMP_OVERFLOW_CHECK 0 +#define MEMP_SANITY_CHECK 0 +#define MEM_OVERFLOW_CHECK 0 +#define MEM_SANITY_CHECK 0 +#define MEM_USE_POOLS 0 +#define MEM_USE_POOLS_TRY_BIGGER_POOL 0 +#define MEMP_USE_CUSTOM_POOLS 0 +#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0 +/*#define MEMP_NUM_PBUF 16 +#define MEMP_NUM_RAW_PCB 4 +#define MEMP_NUM_UDP_PCB 4 +#define MEMP_NUM_TCP_PCB 5 +#define MEMP_NUM_TCP_PCB_LISTEN 8 +#define MEMP_NUM_TCP_SEG 16 +#define MEMP_NUM_ALTCP_PCB MEMP_NUM_TCP_PCB +#define MEMP_NUM_REASSDATA 5 +#define MEMP_NUM_FRAG_PBUF 15 +#define MEMP_NUM_ARP_QUEUE 30 +#define MEMP_NUM_IGMP_GROUP 8 +#define MEMP_NUM_SYS_TIMEOUT (LWIP_NUM_SYS_TIMEOUT_INTERNAL + 2) +#define MEMP_NUM_NETBUF 2 +#define MEMP_NUM_NETCONN 4 +#define MEMP_NUM_SELECT_CB 4 +#define MEMP_NUM_TCPIP_MSG_API 8 +#define MEMP_NUM_TCPIP_MSG_INPKT 8 +#define MEMP_NUM_NETDB 1 +#define MEMP_NUM_LOCALHOSTLIST 1 +#define PBUF_POOL_SIZE 16 +#define MEMP_NUM_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_DNS_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_NETIFAPI_MSG MEMP_NUM_TCPIP_MSG_API*/ +#define LWIP_ARP 1 +#define ARP_TABLE_SIZE 10 +#define ARP_MAXAGE 300 +#define ARP_QUEUEING 0 +#define ARP_QUEUE_LEN 3 +#define ETHARP_SUPPORT_VLAN 0 +#define LWIP_ETHERNET LWIP_ARP +#define ETH_PAD_SIZE 0 +#define ETHARP_SUPPORT_STATIC_ENTRIES 0 +#define ETHARP_TABLE_MATCH_NETIF !LWIP_SINGLE_NETIF +#define LWIP_IPV4 1 +#define IP_FORWARD 0 +#define IP_REASSEMBLY 1 +#define IP_FRAG 1 +#define IP_OPTIONS_ALLOWED 1 +#define IP_REASS_MAXAGE 15 +#define IP_REASS_MAX_PBUFS 10 +#define IP_DEFAULT_TTL 255 +#define IP_SOF_BROADCAST 0 +#define IP_SOF_BROADCAST_RECV 0 +#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0 +#define LWIP_ICMP 1 +#define ICMP_TTL (IP_DEFAULT_TTL) +#define LWIP_BROADCAST_PING 0 +#define LWIP_MULTICAST_PING 0 +#define LWIP_RAW 0 +#define RAW_TTL (IP_DEFAULT_TTL) +#define LWIP_DHCP 1 +#define LWIP_DHCP_CHECK_LINK_UP 0 +#define LWIP_DHCP_BOOTP_FILE 0 +#define LWIP_DHCP_GET_NTP_SRV 0 +#define LWIP_DHCP_MAX_NTP_SERVERS 1 +#define LWIP_DHCP_MAX_DNS_SERVERS DNS_MAX_SERVERS +#define LWIP_AUTOIP 0 +#define LWIP_DHCP_AUTOIP_COOP 0 +#define LWIP_DHCP_AUTOIP_COOP_TRIES 9 +#define LWIP_MIB2_CALLBACKS 0 +#define LWIP_MULTICAST_TX_OPTIONS ((LWIP_IGMP || LWIP_IPV6_MLD) && (LWIP_UDP || LWIP_RAW)) +#define LWIP_IGMP 0 +#define LWIP_DNS 0 +#define DNS_TABLE_SIZE 4 +#define DNS_MAX_NAME_LENGTH 256 +#define DNS_MAX_SERVERS 2 +#define DNS_MAX_RETRIES 4 +#define DNS_DOES_NAME_CHECK 1 +#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT) +#define DNS_LOCAL_HOSTLIST 0 +#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0 +#define LWIP_DNS_SUPPORT_MDNS_QUERIES 0 +#define LWIP_UDP 1 +#define LWIP_UDPLITE 0 +#define UDP_TTL (IP_DEFAULT_TTL) +#define LWIP_NETBUF_RECVINFO 0 +#define LWIP_TCP 1 +#define TCP_TTL (IP_DEFAULT_TTL) +#define TCP_WND (4 * TCP_MSS) +#define TCP_MAXRTX 12 +#define TCP_SYNMAXRTX 6 +#define TCP_QUEUE_OOSEQ (LWIP_TCP) +#define LWIP_TCP_SACK_OUT 0 +#define LWIP_TCP_MAX_SACK_NUM 4 +#define TCP_MSS 536 +#define TCP_CALCULATE_EFF_SEND_MSS 1 +#define TCP_SND_BUF (2 * TCP_MSS) +#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS)) +#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1) +#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5) +#define TCP_OOSEQ_MAX_BYTES 0 +#define TCP_OOSEQ_BYTES_LIMIT(pcb) TCP_OOSEQ_MAX_BYTES +#define TCP_OOSEQ_MAX_PBUFS 0 +#define TCP_OOSEQ_PBUFS_LIMIT(pcb) TCP_OOSEQ_MAX_PBUFS +#define TCP_LISTEN_BACKLOG 0 +#define TCP_DEFAULT_LISTEN_BACKLOG 0xff +#define TCP_OVERSIZE TCP_MSS +#define LWIP_TCP_TIMESTAMPS 0 +#define TCP_WND_UPDATE_THRESHOLD LWIP_MIN((TCP_WND / 4), (TCP_MSS * 4)) +#define LWIP_EVENT_API 0 +#define LWIP_CALLBACK_API 1 +#define LWIP_WND_SCALE 0 +#define TCP_RCV_SCALE 0 +#define LWIP_TCP_PCB_NUM_EXT_ARGS 0 +#define LWIP_ALTCP 0 +#define LWIP_ALTCP_TLS 0 +#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE) +#define PBUF_LINK_ENCAPSULATION_HLEN 0 +#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN) +#define LWIP_PBUF_REF_T u8_t +#define LWIP_SINGLE_NETIF 0 +#define LWIP_NETIF_HOSTNAME 0 +#define LWIP_NETIF_API 0 +#define LWIP_NETIF_STATUS_CALLBACK 0 +#define LWIP_NETIF_EXT_STATUS_CALLBACK 0 +#define LWIP_NETIF_LINK_CALLBACK 0 +#define LWIP_NETIF_REMOVE_CALLBACK 0 +#define LWIP_NETIF_HWADDRHINT 0 +#define LWIP_NETIF_TX_SINGLE_PBUF 0 +#define LWIP_NUM_NETIF_CLIENT_DATA 0 +#define LWIP_HAVE_LOOPIF (LWIP_NETIF_LOOPBACK && !LWIP_SINGLE_NETIF) +#define LWIP_LOOPIF_MULTICAST 0 +#define LWIP_NETIF_LOOPBACK 0 +#define LWIP_LOOPBACK_MAX_PBUFS 0 +#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS) +/*#define TCPIP_THREAD_NAME "tcpip_thread" +#define TCPIP_THREAD_STACKSIZE 0 +#define TCPIP_THREAD_PRIO 1 +#define TCPIP_MBOX_SIZE 0 +#define LWIP_TCPIP_THREAD_ALIVE() +#define SLIPIF_THREAD_NAME "slipif_loop" +#define SLIPIF_THREAD_STACKSIZE 0 +#define SLIPIF_THREAD_PRIO 1 +#define DEFAULT_THREAD_NAME "lwIP" +#define DEFAULT_THREAD_STACKSIZE 0 +#define DEFAULT_THREAD_PRIO 1 +#define DEFAULT_RAW_RECVMBOX_SIZE 0 +#define DEFAULT_UDP_RECVMBOX_SIZE 0 +#define DEFAULT_TCP_RECVMBOX_SIZE 0 +#define DEFAULT_ACCEPTMBOX_SIZE 0*/ +#define LWIP_NETCONN 1 +#define LWIP_TCPIP_TIMEOUT 0 +#define LWIP_NETCONN_SEM_PER_THREAD 0 +#define LWIP_NETCONN_FULLDUPLEX 0 +#define LWIP_SOCKET 1 +#define LWIP_COMPAT_SOCKETS 1 /* 0..2 */ +#define LWIP_POSIX_SOCKETS_IO_NAMES 1 +#define LWIP_SOCKET_OFFSET 0 +#define LWIP_TCP_KEEPALIVE 0 +#define LWIP_SO_SNDTIMEO 0 +#define LWIP_SO_RCVTIMEO 0 +#define LWIP_SO_SNDRCVTIMEO_NONSTANDARD 0 +#define LWIP_SO_RCVBUF 0 +#define LWIP_SO_LINGER 0 +#define RECV_BUFSIZE_DEFAULT INT_MAX +#define LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT 20000 +#define SO_REUSE 0 +#define SO_REUSE_RXTOALL 0 +#define LWIP_FIONREAD_LINUXMODE 0 +#define LWIP_SOCKET_SELECT 1 +#define LWIP_SOCKET_POLL 1 +#define LWIP_STATS 1 +#define LWIP_STATS_DISPLAY 0 +#define LINK_STATS 1 +#define ETHARP_STATS (LWIP_ARP) +#define IP_STATS 1 +#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG) +#define ICMP_STATS 1 +#define IGMP_STATS (LWIP_IGMP) +#define UDP_STATS (LWIP_UDP) +#define TCP_STATS (LWIP_TCP) +#define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0)) +#define MEMP_STATS (MEMP_MEM_MALLOC == 0) +#define SYS_STATS (NO_SYS == 0) +#define IP6_STATS (LWIP_IPV6) +#define ICMP6_STATS (LWIP_IPV6 && LWIP_ICMP6) +#define IP6_FRAG_STATS (LWIP_IPV6 && (LWIP_IPV6_FRAG || LWIP_IPV6_REASS)) +#define MLD6_STATS (LWIP_IPV6 && LWIP_IPV6_MLD) +#define ND6_STATS (LWIP_IPV6) +#define MIB2_STATS 0 +#define LWIP_CHECKSUM_CTRL_PER_NETIF 0 +#define CHECKSUM_GEN_IP 1 +#define CHECKSUM_GEN_UDP 1 +#define CHECKSUM_GEN_TCP 1 +#define CHECKSUM_GEN_ICMP 1 +#define CHECKSUM_GEN_ICMP6 1 +#define CHECKSUM_CHECK_IP 1 +#define CHECKSUM_CHECK_UDP 1 +#define CHECKSUM_CHECK_TCP 1 +#define CHECKSUM_CHECK_ICMP 1 +#define CHECKSUM_CHECK_ICMP6 1 +#define LWIP_CHECKSUM_ON_COPY 0 +#define LWIP_IPV6 0 +#define IPV6_REASS_MAXAGE 60 +#define LWIP_IPV6_SCOPES (LWIP_IPV6 && !LWIP_SINGLE_NETIF) +#define LWIP_IPV6_SCOPES_DEBUG 0 +#define LWIP_IPV6_NUM_ADDRESSES 3 +#define LWIP_IPV6_FORWARD 0 +#define LWIP_IPV6_FRAG 1 +#define LWIP_IPV6_REASS (LWIP_IPV6) +#define LWIP_IPV6_SEND_ROUTER_SOLICIT 1 +#define LWIP_IPV6_AUTOCONFIG (LWIP_IPV6) +#define LWIP_IPV6_ADDRESS_LIFETIMES (LWIP_IPV6_AUTOCONFIG) +#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 1 +#define LWIP_ICMP6 (LWIP_IPV6) +#define LWIP_ICMP6_DATASIZE 8 +#define LWIP_ICMP6_HL 255 +#define LWIP_IPV6_MLD (LWIP_IPV6) +#define MEMP_NUM_MLD6_GROUP 4 +#define LWIP_ND6_QUEUEING (LWIP_IPV6) +#define MEMP_NUM_ND6_QUEUE 20 +#define LWIP_ND6_NUM_NEIGHBORS 10 +#define LWIP_ND6_NUM_DESTINATIONS 10 +#define LWIP_ND6_NUM_PREFIXES 5 +#define LWIP_ND6_NUM_ROUTERS 3 +#define LWIP_ND6_MAX_MULTICAST_SOLICIT 3 +#define LWIP_ND6_MAX_UNICAST_SOLICIT 3 +#define LWIP_ND6_MAX_ANYCAST_DELAY_TIME 1000 +#define LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT 3 +#define LWIP_ND6_REACHABLE_TIME 30000 +#define LWIP_ND6_RETRANS_TIMER 1000 +#define LWIP_ND6_DELAY_FIRST_PROBE_TIME 5000 +#define LWIP_ND6_ALLOW_RA_UPDATES 1 +#define LWIP_ND6_TCP_REACHABILITY_HINTS 1 +#define LWIP_ND6_RDNSS_MAX_DNS_SERVERS 0 +#define LWIP_IPV6_DHCP6 0 +#define LWIP_IPV6_DHCP6_STATEFUL 0 +#define LWIP_IPV6_DHCP6_STATELESS LWIP_IPV6_DHCP6 +#define LWIP_DHCP6_GET_NTP_SRV 0 +#define LWIP_DHCP6_MAX_NTP_SERVERS 1 +#define LWIP_DHCP6_MAX_DNS_SERVERS DNS_MAX_SERVERS + +/* TODO: check hooks */ + +#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL +#define LWIP_DBG_TYPES_ON LWIP_DBG_ON +#define ETHARP_DEBUG LWIP_DBG_OFF +#define NETIF_DEBUG LWIP_DBG_OFF +#define PBUF_DEBUG LWIP_DBG_OFF +#define API_LIB_DEBUG LWIP_DBG_OFF +#define API_MSG_DEBUG LWIP_DBG_OFF +#define SOCKETS_DEBUG LWIP_DBG_OFF +#define ICMP_DEBUG LWIP_DBG_OFF +#define IGMP_DEBUG LWIP_DBG_OFF +#define INET_DEBUG LWIP_DBG_OFF +#define IP_DEBUG LWIP_DBG_OFF +#define IP_REASS_DEBUG LWIP_DBG_OFF +#define RAW_DEBUG LWIP_DBG_OFF +#define MEM_DEBUG LWIP_DBG_OFF +#define MEMP_DEBUG LWIP_DBG_OFF +#define SYS_DEBUG LWIP_DBG_OFF +#define TIMERS_DEBUG LWIP_DBG_OFF +#define TCP_DEBUG LWIP_DBG_OFF +#define TCP_INPUT_DEBUG LWIP_DBG_OFF +#define TCP_FR_DEBUG LWIP_DBG_OFF +#define TCP_RTO_DEBUG LWIP_DBG_OFF +#define TCP_CWND_DEBUG LWIP_DBG_OFF +#define TCP_WND_DEBUG LWIP_DBG_OFF +#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF +#define TCP_RST_DEBUG LWIP_DBG_OFF +#define TCP_QLEN_DEBUG LWIP_DBG_OFF +#define UDP_DEBUG LWIP_DBG_OFF +#define TCPIP_DEBUG LWIP_DBG_OFF +#define SLIP_DEBUG LWIP_DBG_OFF +#define DHCP_DEBUG LWIP_DBG_OFF +#define AUTOIP_DEBUG LWIP_DBG_OFF +#define DNS_DEBUG LWIP_DBG_OFF +#define IP6_DEBUG LWIP_DBG_OFF +#define DHCP6_DEBUG LWIP_DBG_OFF +#define LWIP_TESTMODE 0 + +#define LWIP_PERF 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_dualstack.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_dualstack.h new file mode 100644 index 0000000..4caf490 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_dualstack.h @@ -0,0 +1,295 @@ +/* test an lwipopts.h file with default contents */ +#define NO_SYS 0 +#define NO_SYS_NO_TIMERS 0 +#define LWIP_TIMERS 1 +#define LWIP_TIMERS_CUSTOM 0 +#define LWIP_MPU_COMPATIBLE 0 +#define LWIP_TCPIP_CORE_LOCKING 1 +#define LWIP_TCPIP_CORE_LOCKING_INPUT 0 +#define SYS_LIGHTWEIGHT_PROT 1 +#define MEM_LIBC_MALLOC 0 +#define MEMP_MEM_MALLOC 0 +#define MEMP_MEM_INIT 0 +#define MEM_ALIGNMENT 1 +#define MEM_SIZE 1600 +#define MEMP_OVERFLOW_CHECK 0 +#define MEMP_SANITY_CHECK 0 +#define MEM_OVERFLOW_CHECK 0 +#define MEM_SANITY_CHECK 0 +#define MEM_USE_POOLS 0 +#define MEM_USE_POOLS_TRY_BIGGER_POOL 0 +#define MEMP_USE_CUSTOM_POOLS 0 +#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0 +/*#define MEMP_NUM_PBUF 16 +#define MEMP_NUM_RAW_PCB 4 +#define MEMP_NUM_UDP_PCB 4 +#define MEMP_NUM_TCP_PCB 5 +#define MEMP_NUM_TCP_PCB_LISTEN 8 +#define MEMP_NUM_TCP_SEG 16 +#define MEMP_NUM_ALTCP_PCB MEMP_NUM_TCP_PCB +#define MEMP_NUM_REASSDATA 5 +#define MEMP_NUM_FRAG_PBUF 15 +#define MEMP_NUM_ARP_QUEUE 30 +#define MEMP_NUM_IGMP_GROUP 8 +#define MEMP_NUM_SYS_TIMEOUT (LWIP_NUM_SYS_TIMEOUT_INTERNAL + 2) +#define MEMP_NUM_NETBUF 2 +#define MEMP_NUM_NETCONN 4 +#define MEMP_NUM_SELECT_CB 4 +#define MEMP_NUM_TCPIP_MSG_API 8 +#define MEMP_NUM_TCPIP_MSG_INPKT 8 +#define MEMP_NUM_NETDB 1 +#define MEMP_NUM_LOCALHOSTLIST 1 +#define PBUF_POOL_SIZE 16 +#define MEMP_NUM_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_DNS_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_NETIFAPI_MSG MEMP_NUM_TCPIP_MSG_API*/ +#define LWIP_ARP 1 +#define ARP_TABLE_SIZE 10 +#define ARP_MAXAGE 300 +#define ARP_QUEUEING 0 +#define ARP_QUEUE_LEN 3 +#define ETHARP_SUPPORT_VLAN 0 +#define LWIP_ETHERNET LWIP_ARP +#define ETH_PAD_SIZE 0 +#define ETHARP_SUPPORT_STATIC_ENTRIES 0 +#define ETHARP_TABLE_MATCH_NETIF !LWIP_SINGLE_NETIF +#define LWIP_IPV4 1 +#define IP_FORWARD 0 +#define IP_REASSEMBLY 1 +#define IP_FRAG 1 +#define IP_OPTIONS_ALLOWED 1 +#define IP_REASS_MAXAGE 15 +#define IP_REASS_MAX_PBUFS 10 +#define IP_DEFAULT_TTL 255 +#define IP_SOF_BROADCAST 0 +#define IP_SOF_BROADCAST_RECV 0 +#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0 +#define LWIP_ICMP 1 +#define ICMP_TTL (IP_DEFAULT_TTL) +#define LWIP_BROADCAST_PING 0 +#define LWIP_MULTICAST_PING 0 +#define LWIP_RAW 0 +#define RAW_TTL (IP_DEFAULT_TTL) +#define LWIP_DHCP LWIP_UDP +#define LWIP_DHCP_CHECK_LINK_UP 0 +#define LWIP_DHCP_BOOTP_FILE 0 +#define LWIP_DHCP_GET_NTP_SRV 0 +#define LWIP_DHCP_MAX_NTP_SERVERS 1 +#define LWIP_DHCP_MAX_DNS_SERVERS DNS_MAX_SERVERS +#define LWIP_AUTOIP 0 +#define LWIP_DHCP_AUTOIP_COOP 0 +#define LWIP_DHCP_AUTOIP_COOP_TRIES 9 +#define LWIP_MIB2_CALLBACKS 0 +#define LWIP_MULTICAST_TX_OPTIONS ((LWIP_IGMP || LWIP_IPV6_MLD) && (LWIP_UDP || LWIP_RAW)) +#define LWIP_IGMP 0 +#define LWIP_DNS 0 +#define DNS_TABLE_SIZE 4 +#define DNS_MAX_NAME_LENGTH 256 +#define DNS_MAX_SERVERS 2 +#define DNS_MAX_RETRIES 4 +#define DNS_DOES_NAME_CHECK 1 +#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT) +#define DNS_LOCAL_HOSTLIST 0 +#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0 +#define LWIP_DNS_SUPPORT_MDNS_QUERIES 0 +#define LWIP_UDP 1 +#define LWIP_UDPLITE 0 +#define UDP_TTL (IP_DEFAULT_TTL) +#define LWIP_NETBUF_RECVINFO 0 +#define LWIP_TCP 1 +#define TCP_TTL (IP_DEFAULT_TTL) +#define TCP_WND (4 * TCP_MSS) +#define TCP_MAXRTX 12 +#define TCP_SYNMAXRTX 6 +#define TCP_QUEUE_OOSEQ (LWIP_TCP) +#define LWIP_TCP_SACK_OUT 0 +#define LWIP_TCP_MAX_SACK_NUM 4 +#define TCP_MSS 536 +#define TCP_CALCULATE_EFF_SEND_MSS 1 +#define TCP_SND_BUF (2 * TCP_MSS) +#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS)) +#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1) +#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5) +#define TCP_OOSEQ_MAX_BYTES 0 +#define TCP_OOSEQ_BYTES_LIMIT(pcb) TCP_OOSEQ_MAX_BYTES +#define TCP_OOSEQ_MAX_PBUFS 0 +#define TCP_OOSEQ_PBUFS_LIMIT(pcb) TCP_OOSEQ_MAX_PBUFS +#define TCP_LISTEN_BACKLOG 0 +#define TCP_DEFAULT_LISTEN_BACKLOG 0xff +#define TCP_OVERSIZE TCP_MSS +#define LWIP_TCP_TIMESTAMPS 0 +#define TCP_WND_UPDATE_THRESHOLD LWIP_MIN((TCP_WND / 4), (TCP_MSS * 4)) +#define LWIP_EVENT_API 0 +#define LWIP_CALLBACK_API 1 +#define LWIP_WND_SCALE 0 +#define TCP_RCV_SCALE 0 +#define LWIP_TCP_PCB_NUM_EXT_ARGS 0 +#define LWIP_ALTCP 0 +#define LWIP_ALTCP_TLS 0 +#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE) +#define PBUF_LINK_ENCAPSULATION_HLEN 0 +#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN) +#define LWIP_PBUF_REF_T u8_t +#define LWIP_SINGLE_NETIF 0 +#define LWIP_NETIF_HOSTNAME 0 +#define LWIP_NETIF_API 0 +#define LWIP_NETIF_STATUS_CALLBACK 0 +#define LWIP_NETIF_EXT_STATUS_CALLBACK 0 +#define LWIP_NETIF_LINK_CALLBACK 0 +#define LWIP_NETIF_REMOVE_CALLBACK 0 +#define LWIP_NETIF_HWADDRHINT 0 +#define LWIP_NETIF_TX_SINGLE_PBUF 0 +#define LWIP_NUM_NETIF_CLIENT_DATA 0 +#define LWIP_HAVE_LOOPIF (LWIP_NETIF_LOOPBACK && !LWIP_SINGLE_NETIF) +#define LWIP_LOOPIF_MULTICAST 0 +#define LWIP_NETIF_LOOPBACK 0 +#define LWIP_LOOPBACK_MAX_PBUFS 0 +#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS) +/*#define TCPIP_THREAD_NAME "tcpip_thread" +#define TCPIP_THREAD_STACKSIZE 0 +#define TCPIP_THREAD_PRIO 1 +#define TCPIP_MBOX_SIZE 0 +#define LWIP_TCPIP_THREAD_ALIVE() +#define SLIPIF_THREAD_NAME "slipif_loop" +#define SLIPIF_THREAD_STACKSIZE 0 +#define SLIPIF_THREAD_PRIO 1 +#define DEFAULT_THREAD_NAME "lwIP" +#define DEFAULT_THREAD_STACKSIZE 0 +#define DEFAULT_THREAD_PRIO 1 +#define DEFAULT_RAW_RECVMBOX_SIZE 0 +#define DEFAULT_UDP_RECVMBOX_SIZE 0 +#define DEFAULT_TCP_RECVMBOX_SIZE 0 +#define DEFAULT_ACCEPTMBOX_SIZE 0*/ +#define LWIP_NETCONN 1 +#define LWIP_TCPIP_TIMEOUT 0 +#define LWIP_NETCONN_SEM_PER_THREAD 0 +#define LWIP_NETCONN_FULLDUPLEX 0 +#define LWIP_SOCKET 1 +#define LWIP_COMPAT_SOCKETS 1 /* 0..2 */ +#define LWIP_POSIX_SOCKETS_IO_NAMES 1 +#define LWIP_SOCKET_OFFSET 0 +#define LWIP_TCP_KEEPALIVE 0 +#define LWIP_SO_SNDTIMEO 0 +#define LWIP_SO_RCVTIMEO 0 +#define LWIP_SO_SNDRCVTIMEO_NONSTANDARD 0 +#define LWIP_SO_RCVBUF 0 +#define LWIP_SO_LINGER 0 +#define RECV_BUFSIZE_DEFAULT INT_MAX +#define LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT 20000 +#define SO_REUSE 0 +#define SO_REUSE_RXTOALL 0 +#define LWIP_FIONREAD_LINUXMODE 0 +#define LWIP_SOCKET_SELECT 1 +#define LWIP_SOCKET_POLL 1 +#define LWIP_STATS 1 +#define LWIP_STATS_DISPLAY 0 +#define LINK_STATS 1 +#define ETHARP_STATS (LWIP_ARP) +#define IP_STATS 1 +#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG) +#define ICMP_STATS 1 +#define IGMP_STATS (LWIP_IGMP) +#define UDP_STATS (LWIP_UDP) +#define TCP_STATS (LWIP_TCP) +#define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0)) +#define MEMP_STATS (MEMP_MEM_MALLOC == 0) +#define SYS_STATS (NO_SYS == 0) +#define IP6_STATS (LWIP_IPV6) +#define ICMP6_STATS (LWIP_IPV6 && LWIP_ICMP6) +#define IP6_FRAG_STATS (LWIP_IPV6 && (LWIP_IPV6_FRAG || LWIP_IPV6_REASS)) +#define MLD6_STATS (LWIP_IPV6 && LWIP_IPV6_MLD) +#define ND6_STATS (LWIP_IPV6) +#define MIB2_STATS 0 +#define LWIP_CHECKSUM_CTRL_PER_NETIF 0 +#define CHECKSUM_GEN_IP 1 +#define CHECKSUM_GEN_UDP 1 +#define CHECKSUM_GEN_TCP 1 +#define CHECKSUM_GEN_ICMP 1 +#define CHECKSUM_GEN_ICMP6 1 +#define CHECKSUM_CHECK_IP 1 +#define CHECKSUM_CHECK_UDP 1 +#define CHECKSUM_CHECK_TCP 1 +#define CHECKSUM_CHECK_ICMP 1 +#define CHECKSUM_CHECK_ICMP6 1 +#define LWIP_CHECKSUM_ON_COPY 0 +#define LWIP_IPV6 1 +#define IPV6_REASS_MAXAGE 60 +#define LWIP_IPV6_SCOPES (LWIP_IPV6 && !LWIP_SINGLE_NETIF) +#define LWIP_IPV6_SCOPES_DEBUG 0 +#define LWIP_IPV6_NUM_ADDRESSES 3 +#define LWIP_IPV6_FORWARD 0 +#define LWIP_IPV6_FRAG 1 +#define LWIP_IPV6_REASS (LWIP_IPV6) +#define LWIP_IPV6_SEND_ROUTER_SOLICIT 1 +#define LWIP_IPV6_AUTOCONFIG (LWIP_IPV6) +#define LWIP_IPV6_ADDRESS_LIFETIMES (LWIP_IPV6_AUTOCONFIG) +#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 1 +#define LWIP_ICMP6 (LWIP_IPV6) +#define LWIP_ICMP6_DATASIZE 8 +#define LWIP_ICMP6_HL 255 +#define LWIP_IPV6_MLD (LWIP_IPV6) +#define MEMP_NUM_MLD6_GROUP 4 +#define LWIP_ND6_QUEUEING (LWIP_IPV6) +#define MEMP_NUM_ND6_QUEUE 20 +#define LWIP_ND6_NUM_NEIGHBORS 10 +#define LWIP_ND6_NUM_DESTINATIONS 10 +#define LWIP_ND6_NUM_PREFIXES 5 +#define LWIP_ND6_NUM_ROUTERS 3 +#define LWIP_ND6_MAX_MULTICAST_SOLICIT 3 +#define LWIP_ND6_MAX_UNICAST_SOLICIT 3 +#define LWIP_ND6_MAX_ANYCAST_DELAY_TIME 1000 +#define LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT 3 +#define LWIP_ND6_REACHABLE_TIME 30000 +#define LWIP_ND6_RETRANS_TIMER 1000 +#define LWIP_ND6_DELAY_FIRST_PROBE_TIME 5000 +#define LWIP_ND6_ALLOW_RA_UPDATES 1 +#define LWIP_ND6_TCP_REACHABILITY_HINTS 1 +#define LWIP_ND6_RDNSS_MAX_DNS_SERVERS 0 +#define LWIP_IPV6_DHCP6 0 +#define LWIP_IPV6_DHCP6_STATEFUL 0 +#define LWIP_IPV6_DHCP6_STATELESS LWIP_IPV6_DHCP6 +#define LWIP_DHCP6_GET_NTP_SRV 0 +#define LWIP_DHCP6_MAX_NTP_SERVERS 1 +#define LWIP_DHCP6_MAX_DNS_SERVERS DNS_MAX_SERVERS + +/* TODO: check hooks */ + +#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL +#define LWIP_DBG_TYPES_ON LWIP_DBG_ON +#define ETHARP_DEBUG LWIP_DBG_OFF +#define NETIF_DEBUG LWIP_DBG_OFF +#define PBUF_DEBUG LWIP_DBG_OFF +#define API_LIB_DEBUG LWIP_DBG_OFF +#define API_MSG_DEBUG LWIP_DBG_OFF +#define SOCKETS_DEBUG LWIP_DBG_OFF +#define ICMP_DEBUG LWIP_DBG_OFF +#define IGMP_DEBUG LWIP_DBG_OFF +#define INET_DEBUG LWIP_DBG_OFF +#define IP_DEBUG LWIP_DBG_OFF +#define IP_REASS_DEBUG LWIP_DBG_OFF +#define RAW_DEBUG LWIP_DBG_OFF +#define MEM_DEBUG LWIP_DBG_OFF +#define MEMP_DEBUG LWIP_DBG_OFF +#define SYS_DEBUG LWIP_DBG_OFF +#define TIMERS_DEBUG LWIP_DBG_OFF +#define TCP_DEBUG LWIP_DBG_OFF +#define TCP_INPUT_DEBUG LWIP_DBG_OFF +#define TCP_FR_DEBUG LWIP_DBG_OFF +#define TCP_RTO_DEBUG LWIP_DBG_OFF +#define TCP_CWND_DEBUG LWIP_DBG_OFF +#define TCP_WND_DEBUG LWIP_DBG_OFF +#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF +#define TCP_RST_DEBUG LWIP_DBG_OFF +#define TCP_QLEN_DEBUG LWIP_DBG_OFF +#define UDP_DEBUG LWIP_DBG_OFF +#define TCPIP_DEBUG LWIP_DBG_OFF +#define SLIP_DEBUG LWIP_DBG_OFF +#define DHCP_DEBUG LWIP_DBG_OFF +#define AUTOIP_DEBUG LWIP_DBG_OFF +#define DNS_DEBUG LWIP_DBG_OFF +#define IP6_DEBUG LWIP_DBG_OFF +#define DHCP6_DEBUG LWIP_DBG_OFF +#define LWIP_TESTMODE 0 + +#define LWIP_PERF 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_ipv4only.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_ipv4only.h new file mode 100644 index 0000000..82ba467 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_ipv4only.h @@ -0,0 +1,295 @@ +/* test an lwipopts.h file with default contents */ +#define NO_SYS 0 +#define NO_SYS_NO_TIMERS 0 +#define LWIP_TIMERS 1 +#define LWIP_TIMERS_CUSTOM 0 +#define LWIP_MPU_COMPATIBLE 0 +#define LWIP_TCPIP_CORE_LOCKING 1 +#define LWIP_TCPIP_CORE_LOCKING_INPUT 0 +#define SYS_LIGHTWEIGHT_PROT 1 +#define MEM_LIBC_MALLOC 0 +#define MEMP_MEM_MALLOC 0 +#define MEMP_MEM_INIT 0 +#define MEM_ALIGNMENT 1 +#define MEM_SIZE 1600 +#define MEMP_OVERFLOW_CHECK 0 +#define MEMP_SANITY_CHECK 0 +#define MEM_OVERFLOW_CHECK 0 +#define MEM_SANITY_CHECK 0 +#define MEM_USE_POOLS 0 +#define MEM_USE_POOLS_TRY_BIGGER_POOL 0 +#define MEMP_USE_CUSTOM_POOLS 0 +#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0 +/*#define MEMP_NUM_PBUF 16 +#define MEMP_NUM_RAW_PCB 4 +#define MEMP_NUM_UDP_PCB 4 +#define MEMP_NUM_TCP_PCB 5 +#define MEMP_NUM_TCP_PCB_LISTEN 8 +#define MEMP_NUM_TCP_SEG 16 +#define MEMP_NUM_ALTCP_PCB MEMP_NUM_TCP_PCB +#define MEMP_NUM_REASSDATA 5 +#define MEMP_NUM_FRAG_PBUF 15 +#define MEMP_NUM_ARP_QUEUE 30 +#define MEMP_NUM_IGMP_GROUP 8 +#define MEMP_NUM_SYS_TIMEOUT (LWIP_NUM_SYS_TIMEOUT_INTERNAL + 2) +#define MEMP_NUM_NETBUF 2 +#define MEMP_NUM_NETCONN 4 +#define MEMP_NUM_SELECT_CB 4 +#define MEMP_NUM_TCPIP_MSG_API 8 +#define MEMP_NUM_TCPIP_MSG_INPKT 8 +#define MEMP_NUM_NETDB 1 +#define MEMP_NUM_LOCALHOSTLIST 1 +#define PBUF_POOL_SIZE 16 +#define MEMP_NUM_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_DNS_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_NETIFAPI_MSG MEMP_NUM_TCPIP_MSG_API*/ +#define LWIP_ARP 1 +#define ARP_TABLE_SIZE 10 +#define ARP_MAXAGE 300 +#define ARP_QUEUEING 0 +#define ARP_QUEUE_LEN 3 +#define ETHARP_SUPPORT_VLAN 0 +#define LWIP_ETHERNET LWIP_ARP +#define ETH_PAD_SIZE 0 +#define ETHARP_SUPPORT_STATIC_ENTRIES 0 +#define ETHARP_TABLE_MATCH_NETIF !LWIP_SINGLE_NETIF +#define LWIP_IPV4 1 +#define IP_FORWARD 0 +#define IP_REASSEMBLY 1 +#define IP_FRAG 1 +#define IP_OPTIONS_ALLOWED 1 +#define IP_REASS_MAXAGE 15 +#define IP_REASS_MAX_PBUFS 10 +#define IP_DEFAULT_TTL 255 +#define IP_SOF_BROADCAST 0 +#define IP_SOF_BROADCAST_RECV 0 +#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0 +#define LWIP_ICMP 1 +#define ICMP_TTL (IP_DEFAULT_TTL) +#define LWIP_BROADCAST_PING 0 +#define LWIP_MULTICAST_PING 0 +#define LWIP_RAW 0 +#define RAW_TTL (IP_DEFAULT_TTL) +#define LWIP_DHCP LWIP_UDP +#define LWIP_DHCP_CHECK_LINK_UP 0 +#define LWIP_DHCP_BOOTP_FILE 0 +#define LWIP_DHCP_GET_NTP_SRV 0 +#define LWIP_DHCP_MAX_NTP_SERVERS 1 +#define LWIP_DHCP_MAX_DNS_SERVERS DNS_MAX_SERVERS +#define LWIP_AUTOIP 0 +#define LWIP_DHCP_AUTOIP_COOP 0 +#define LWIP_DHCP_AUTOIP_COOP_TRIES 9 +#define LWIP_MIB2_CALLBACKS 0 +#define LWIP_MULTICAST_TX_OPTIONS ((LWIP_IGMP || LWIP_IPV6_MLD) && (LWIP_UDP || LWIP_RAW)) +#define LWIP_IGMP 0 +#define LWIP_DNS 0 +#define DNS_TABLE_SIZE 4 +#define DNS_MAX_NAME_LENGTH 256 +#define DNS_MAX_SERVERS 2 +#define DNS_MAX_RETRIES 4 +#define DNS_DOES_NAME_CHECK 1 +#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT) +#define DNS_LOCAL_HOSTLIST 0 +#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0 +#define LWIP_DNS_SUPPORT_MDNS_QUERIES 0 +#define LWIP_UDP 1 +#define LWIP_UDPLITE 0 +#define UDP_TTL (IP_DEFAULT_TTL) +#define LWIP_NETBUF_RECVINFO 0 +#define LWIP_TCP 1 +#define TCP_TTL (IP_DEFAULT_TTL) +#define TCP_WND (4 * TCP_MSS) +#define TCP_MAXRTX 12 +#define TCP_SYNMAXRTX 6 +#define TCP_QUEUE_OOSEQ (LWIP_TCP) +#define LWIP_TCP_SACK_OUT 0 +#define LWIP_TCP_MAX_SACK_NUM 4 +#define TCP_MSS 536 +#define TCP_CALCULATE_EFF_SEND_MSS 1 +#define TCP_SND_BUF (2 * TCP_MSS) +#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS)) +#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1) +#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5) +#define TCP_OOSEQ_MAX_BYTES 0 +#define TCP_OOSEQ_BYTES_LIMIT(pcb) TCP_OOSEQ_MAX_BYTES +#define TCP_OOSEQ_MAX_PBUFS 0 +#define TCP_OOSEQ_PBUFS_LIMIT(pcb) TCP_OOSEQ_MAX_PBUFS +#define TCP_LISTEN_BACKLOG 0 +#define TCP_DEFAULT_LISTEN_BACKLOG 0xff +#define TCP_OVERSIZE TCP_MSS +#define LWIP_TCP_TIMESTAMPS 0 +#define TCP_WND_UPDATE_THRESHOLD LWIP_MIN((TCP_WND / 4), (TCP_MSS * 4)) +#define LWIP_EVENT_API 0 +#define LWIP_CALLBACK_API 1 +#define LWIP_WND_SCALE 0 +#define TCP_RCV_SCALE 0 +#define LWIP_TCP_PCB_NUM_EXT_ARGS 0 +#define LWIP_ALTCP 0 +#define LWIP_ALTCP_TLS 0 +#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE) +#define PBUF_LINK_ENCAPSULATION_HLEN 0 +#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN) +#define LWIP_PBUF_REF_T u8_t +#define LWIP_SINGLE_NETIF 0 +#define LWIP_NETIF_HOSTNAME 0 +#define LWIP_NETIF_API 0 +#define LWIP_NETIF_STATUS_CALLBACK 0 +#define LWIP_NETIF_EXT_STATUS_CALLBACK 0 +#define LWIP_NETIF_LINK_CALLBACK 0 +#define LWIP_NETIF_REMOVE_CALLBACK 0 +#define LWIP_NETIF_HWADDRHINT 0 +#define LWIP_NETIF_TX_SINGLE_PBUF 0 +#define LWIP_NUM_NETIF_CLIENT_DATA 0 +#define LWIP_HAVE_LOOPIF (LWIP_NETIF_LOOPBACK && !LWIP_SINGLE_NETIF) +#define LWIP_LOOPIF_MULTICAST 0 +#define LWIP_NETIF_LOOPBACK 0 +#define LWIP_LOOPBACK_MAX_PBUFS 0 +#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS) +/*#define TCPIP_THREAD_NAME "tcpip_thread" +#define TCPIP_THREAD_STACKSIZE 0 +#define TCPIP_THREAD_PRIO 1 +#define TCPIP_MBOX_SIZE 0 +#define LWIP_TCPIP_THREAD_ALIVE() +#define SLIPIF_THREAD_NAME "slipif_loop" +#define SLIPIF_THREAD_STACKSIZE 0 +#define SLIPIF_THREAD_PRIO 1 +#define DEFAULT_THREAD_NAME "lwIP" +#define DEFAULT_THREAD_STACKSIZE 0 +#define DEFAULT_THREAD_PRIO 1 +#define DEFAULT_RAW_RECVMBOX_SIZE 0 +#define DEFAULT_UDP_RECVMBOX_SIZE 0 +#define DEFAULT_TCP_RECVMBOX_SIZE 0 +#define DEFAULT_ACCEPTMBOX_SIZE 0*/ +#define LWIP_NETCONN 1 +#define LWIP_TCPIP_TIMEOUT 0 +#define LWIP_NETCONN_SEM_PER_THREAD 0 +#define LWIP_NETCONN_FULLDUPLEX 0 +#define LWIP_SOCKET 1 +#define LWIP_COMPAT_SOCKETS 1 /* 0..2 */ +#define LWIP_POSIX_SOCKETS_IO_NAMES 1 +#define LWIP_SOCKET_OFFSET 0 +#define LWIP_TCP_KEEPALIVE 0 +#define LWIP_SO_SNDTIMEO 0 +#define LWIP_SO_RCVTIMEO 0 +#define LWIP_SO_SNDRCVTIMEO_NONSTANDARD 0 +#define LWIP_SO_RCVBUF 0 +#define LWIP_SO_LINGER 0 +#define RECV_BUFSIZE_DEFAULT INT_MAX +#define LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT 20000 +#define SO_REUSE 0 +#define SO_REUSE_RXTOALL 0 +#define LWIP_FIONREAD_LINUXMODE 0 +#define LWIP_SOCKET_SELECT 1 +#define LWIP_SOCKET_POLL 1 +#define LWIP_STATS 1 +#define LWIP_STATS_DISPLAY 0 +#define LINK_STATS 1 +#define ETHARP_STATS (LWIP_ARP) +#define IP_STATS 1 +#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG) +#define ICMP_STATS 1 +#define IGMP_STATS (LWIP_IGMP) +#define UDP_STATS (LWIP_UDP) +#define TCP_STATS (LWIP_TCP) +#define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0)) +#define MEMP_STATS (MEMP_MEM_MALLOC == 0) +#define SYS_STATS (NO_SYS == 0) +#define IP6_STATS (LWIP_IPV6) +#define ICMP6_STATS (LWIP_IPV6 && LWIP_ICMP6) +#define IP6_FRAG_STATS (LWIP_IPV6 && (LWIP_IPV6_FRAG || LWIP_IPV6_REASS)) +#define MLD6_STATS (LWIP_IPV6 && LWIP_IPV6_MLD) +#define ND6_STATS (LWIP_IPV6) +#define MIB2_STATS 0 +#define LWIP_CHECKSUM_CTRL_PER_NETIF 0 +#define CHECKSUM_GEN_IP 1 +#define CHECKSUM_GEN_UDP 1 +#define CHECKSUM_GEN_TCP 1 +#define CHECKSUM_GEN_ICMP 1 +#define CHECKSUM_GEN_ICMP6 1 +#define CHECKSUM_CHECK_IP 1 +#define CHECKSUM_CHECK_UDP 1 +#define CHECKSUM_CHECK_TCP 1 +#define CHECKSUM_CHECK_ICMP 1 +#define CHECKSUM_CHECK_ICMP6 1 +#define LWIP_CHECKSUM_ON_COPY 0 +#define LWIP_IPV6 0 +#define IPV6_REASS_MAXAGE 60 +#define LWIP_IPV6_SCOPES (LWIP_IPV6 && !LWIP_SINGLE_NETIF) +#define LWIP_IPV6_SCOPES_DEBUG 0 +#define LWIP_IPV6_NUM_ADDRESSES 3 +#define LWIP_IPV6_FORWARD 0 +#define LWIP_IPV6_FRAG 1 +#define LWIP_IPV6_REASS (LWIP_IPV6) +#define LWIP_IPV6_SEND_ROUTER_SOLICIT 1 +#define LWIP_IPV6_AUTOCONFIG (LWIP_IPV6) +#define LWIP_IPV6_ADDRESS_LIFETIMES (LWIP_IPV6_AUTOCONFIG) +#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 1 +#define LWIP_ICMP6 (LWIP_IPV6) +#define LWIP_ICMP6_DATASIZE 8 +#define LWIP_ICMP6_HL 255 +#define LWIP_IPV6_MLD (LWIP_IPV6) +#define MEMP_NUM_MLD6_GROUP 4 +#define LWIP_ND6_QUEUEING (LWIP_IPV6) +#define MEMP_NUM_ND6_QUEUE 20 +#define LWIP_ND6_NUM_NEIGHBORS 10 +#define LWIP_ND6_NUM_DESTINATIONS 10 +#define LWIP_ND6_NUM_PREFIXES 5 +#define LWIP_ND6_NUM_ROUTERS 3 +#define LWIP_ND6_MAX_MULTICAST_SOLICIT 3 +#define LWIP_ND6_MAX_UNICAST_SOLICIT 3 +#define LWIP_ND6_MAX_ANYCAST_DELAY_TIME 1000 +#define LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT 3 +#define LWIP_ND6_REACHABLE_TIME 30000 +#define LWIP_ND6_RETRANS_TIMER 1000 +#define LWIP_ND6_DELAY_FIRST_PROBE_TIME 5000 +#define LWIP_ND6_ALLOW_RA_UPDATES 1 +#define LWIP_ND6_TCP_REACHABILITY_HINTS 1 +#define LWIP_ND6_RDNSS_MAX_DNS_SERVERS 0 +#define LWIP_IPV6_DHCP6 0 +#define LWIP_IPV6_DHCP6_STATEFUL 0 +#define LWIP_IPV6_DHCP6_STATELESS LWIP_IPV6_DHCP6 +#define LWIP_DHCP6_GET_NTP_SRV 0 +#define LWIP_DHCP6_MAX_NTP_SERVERS 1 +#define LWIP_DHCP6_MAX_DNS_SERVERS DNS_MAX_SERVERS + +/* TODO: check hooks */ + +#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL +#define LWIP_DBG_TYPES_ON LWIP_DBG_ON +#define ETHARP_DEBUG LWIP_DBG_OFF +#define NETIF_DEBUG LWIP_DBG_OFF +#define PBUF_DEBUG LWIP_DBG_OFF +#define API_LIB_DEBUG LWIP_DBG_OFF +#define API_MSG_DEBUG LWIP_DBG_OFF +#define SOCKETS_DEBUG LWIP_DBG_OFF +#define ICMP_DEBUG LWIP_DBG_OFF +#define IGMP_DEBUG LWIP_DBG_OFF +#define INET_DEBUG LWIP_DBG_OFF +#define IP_DEBUG LWIP_DBG_OFF +#define IP_REASS_DEBUG LWIP_DBG_OFF +#define RAW_DEBUG LWIP_DBG_OFF +#define MEM_DEBUG LWIP_DBG_OFF +#define MEMP_DEBUG LWIP_DBG_OFF +#define SYS_DEBUG LWIP_DBG_OFF +#define TIMERS_DEBUG LWIP_DBG_OFF +#define TCP_DEBUG LWIP_DBG_OFF +#define TCP_INPUT_DEBUG LWIP_DBG_OFF +#define TCP_FR_DEBUG LWIP_DBG_OFF +#define TCP_RTO_DEBUG LWIP_DBG_OFF +#define TCP_CWND_DEBUG LWIP_DBG_OFF +#define TCP_WND_DEBUG LWIP_DBG_OFF +#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF +#define TCP_RST_DEBUG LWIP_DBG_OFF +#define TCP_QLEN_DEBUG LWIP_DBG_OFF +#define UDP_DEBUG LWIP_DBG_OFF +#define TCPIP_DEBUG LWIP_DBG_OFF +#define SLIP_DEBUG LWIP_DBG_OFF +#define DHCP_DEBUG LWIP_DBG_OFF +#define AUTOIP_DEBUG LWIP_DBG_OFF +#define DNS_DEBUG LWIP_DBG_OFF +#define IP6_DEBUG LWIP_DBG_OFF +#define DHCP6_DEBUG LWIP_DBG_OFF +#define LWIP_TESTMODE 0 + +#define LWIP_PERF 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_ipv6only.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_ipv6only.h new file mode 100644 index 0000000..b3cb1e0 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_ipv6only.h @@ -0,0 +1,295 @@ +/* test an lwipopts.h file with default contents */ +#define NO_SYS 0 +#define NO_SYS_NO_TIMERS 0 +#define LWIP_TIMERS 1 +#define LWIP_TIMERS_CUSTOM 0 +#define LWIP_MPU_COMPATIBLE 0 +#define LWIP_TCPIP_CORE_LOCKING 1 +#define LWIP_TCPIP_CORE_LOCKING_INPUT 0 +#define SYS_LIGHTWEIGHT_PROT 1 +#define MEM_LIBC_MALLOC 0 +#define MEMP_MEM_MALLOC 0 +#define MEMP_MEM_INIT 0 +#define MEM_ALIGNMENT 1 +#define MEM_SIZE 1600 +#define MEMP_OVERFLOW_CHECK 0 +#define MEMP_SANITY_CHECK 0 +#define MEM_OVERFLOW_CHECK 0 +#define MEM_SANITY_CHECK 0 +#define MEM_USE_POOLS 0 +#define MEM_USE_POOLS_TRY_BIGGER_POOL 0 +#define MEMP_USE_CUSTOM_POOLS 0 +#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0 +/*#define MEMP_NUM_PBUF 16 +#define MEMP_NUM_RAW_PCB 4 +#define MEMP_NUM_UDP_PCB 4 +#define MEMP_NUM_TCP_PCB 5 +#define MEMP_NUM_TCP_PCB_LISTEN 8 +#define MEMP_NUM_TCP_SEG 16 +#define MEMP_NUM_ALTCP_PCB MEMP_NUM_TCP_PCB +#define MEMP_NUM_REASSDATA 5 +#define MEMP_NUM_FRAG_PBUF 15 +#define MEMP_NUM_ARP_QUEUE 30 +#define MEMP_NUM_IGMP_GROUP 8 +#define MEMP_NUM_SYS_TIMEOUT (LWIP_NUM_SYS_TIMEOUT_INTERNAL + 2) +#define MEMP_NUM_NETBUF 2 +#define MEMP_NUM_NETCONN 4 +#define MEMP_NUM_SELECT_CB 4 +#define MEMP_NUM_TCPIP_MSG_API 8 +#define MEMP_NUM_TCPIP_MSG_INPKT 8 +#define MEMP_NUM_NETDB 1 +#define MEMP_NUM_LOCALHOSTLIST 1 +#define PBUF_POOL_SIZE 16 +#define MEMP_NUM_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_DNS_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_NETIFAPI_MSG MEMP_NUM_TCPIP_MSG_API*/ +#define LWIP_ARP 1 +#define ARP_TABLE_SIZE 10 +#define ARP_MAXAGE 300 +#define ARP_QUEUEING 0 +#define ARP_QUEUE_LEN 3 +#define ETHARP_SUPPORT_VLAN 0 +#define LWIP_ETHERNET LWIP_ARP +#define ETH_PAD_SIZE 0 +#define ETHARP_SUPPORT_STATIC_ENTRIES 0 +#define ETHARP_TABLE_MATCH_NETIF !LWIP_SINGLE_NETIF +#define LWIP_IPV4 0 +#define IP_FORWARD 0 +#define IP_REASSEMBLY 1 +#define IP_FRAG 1 +#define IP_OPTIONS_ALLOWED 1 +#define IP_REASS_MAXAGE 15 +#define IP_REASS_MAX_PBUFS 10 +#define IP_DEFAULT_TTL 255 +#define IP_SOF_BROADCAST 0 +#define IP_SOF_BROADCAST_RECV 0 +#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0 +#define LWIP_ICMP 1 +#define ICMP_TTL (IP_DEFAULT_TTL) +#define LWIP_BROADCAST_PING 0 +#define LWIP_MULTICAST_PING 0 +#define LWIP_RAW 0 +#define RAW_TTL (IP_DEFAULT_TTL) +#define LWIP_DHCP 0 +#define LWIP_DHCP_CHECK_LINK_UP 0 +#define LWIP_DHCP_BOOTP_FILE 0 +#define LWIP_DHCP_GET_NTP_SRV 0 +#define LWIP_DHCP_MAX_NTP_SERVERS 1 +#define LWIP_DHCP_MAX_DNS_SERVERS DNS_MAX_SERVERS +#define LWIP_AUTOIP 0 +#define LWIP_DHCP_AUTOIP_COOP 0 +#define LWIP_DHCP_AUTOIP_COOP_TRIES 9 +#define LWIP_MIB2_CALLBACKS 0 +#define LWIP_MULTICAST_TX_OPTIONS ((LWIP_IGMP || LWIP_IPV6_MLD) && (LWIP_UDP || LWIP_RAW)) +#define LWIP_IGMP 0 +#define LWIP_DNS 0 +#define DNS_TABLE_SIZE 4 +#define DNS_MAX_NAME_LENGTH 256 +#define DNS_MAX_SERVERS 2 +#define DNS_MAX_RETRIES 4 +#define DNS_DOES_NAME_CHECK 1 +#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT) +#define DNS_LOCAL_HOSTLIST 0 +#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0 +#define LWIP_DNS_SUPPORT_MDNS_QUERIES 0 +#define LWIP_UDP 1 +#define LWIP_UDPLITE 0 +#define UDP_TTL (IP_DEFAULT_TTL) +#define LWIP_NETBUF_RECVINFO 0 +#define LWIP_TCP 1 +#define TCP_TTL (IP_DEFAULT_TTL) +#define TCP_WND (4 * TCP_MSS) +#define TCP_MAXRTX 12 +#define TCP_SYNMAXRTX 6 +#define TCP_QUEUE_OOSEQ (LWIP_TCP) +#define LWIP_TCP_SACK_OUT 0 +#define LWIP_TCP_MAX_SACK_NUM 4 +#define TCP_MSS 536 +#define TCP_CALCULATE_EFF_SEND_MSS 1 +#define TCP_SND_BUF (2 * TCP_MSS) +#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS)) +#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1) +#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5) +#define TCP_OOSEQ_MAX_BYTES 0 +#define TCP_OOSEQ_BYTES_LIMIT(pcb) TCP_OOSEQ_MAX_BYTES +#define TCP_OOSEQ_MAX_PBUFS 0 +#define TCP_OOSEQ_PBUFS_LIMIT(pcb) TCP_OOSEQ_MAX_PBUFS +#define TCP_LISTEN_BACKLOG 0 +#define TCP_DEFAULT_LISTEN_BACKLOG 0xff +#define TCP_OVERSIZE TCP_MSS +#define LWIP_TCP_TIMESTAMPS 0 +#define TCP_WND_UPDATE_THRESHOLD LWIP_MIN((TCP_WND / 4), (TCP_MSS * 4)) +#define LWIP_EVENT_API 0 +#define LWIP_CALLBACK_API 1 +#define LWIP_WND_SCALE 0 +#define TCP_RCV_SCALE 0 +#define LWIP_TCP_PCB_NUM_EXT_ARGS 0 +#define LWIP_ALTCP 0 +#define LWIP_ALTCP_TLS 0 +#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE) +#define PBUF_LINK_ENCAPSULATION_HLEN 0 +#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN) +#define LWIP_PBUF_REF_T u8_t +#define LWIP_SINGLE_NETIF 0 +#define LWIP_NETIF_HOSTNAME 0 +#define LWIP_NETIF_API 0 +#define LWIP_NETIF_STATUS_CALLBACK 0 +#define LWIP_NETIF_EXT_STATUS_CALLBACK 0 +#define LWIP_NETIF_LINK_CALLBACK 0 +#define LWIP_NETIF_REMOVE_CALLBACK 0 +#define LWIP_NETIF_HWADDRHINT 0 +#define LWIP_NETIF_TX_SINGLE_PBUF 0 +#define LWIP_NUM_NETIF_CLIENT_DATA 0 +#define LWIP_HAVE_LOOPIF (LWIP_NETIF_LOOPBACK && !LWIP_SINGLE_NETIF) +#define LWIP_LOOPIF_MULTICAST 0 +#define LWIP_NETIF_LOOPBACK 0 +#define LWIP_LOOPBACK_MAX_PBUFS 0 +#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS) +/*#define TCPIP_THREAD_NAME "tcpip_thread" +#define TCPIP_THREAD_STACKSIZE 0 +#define TCPIP_THREAD_PRIO 1 +#define TCPIP_MBOX_SIZE 0 +#define LWIP_TCPIP_THREAD_ALIVE() +#define SLIPIF_THREAD_NAME "slipif_loop" +#define SLIPIF_THREAD_STACKSIZE 0 +#define SLIPIF_THREAD_PRIO 1 +#define DEFAULT_THREAD_NAME "lwIP" +#define DEFAULT_THREAD_STACKSIZE 0 +#define DEFAULT_THREAD_PRIO 1 +#define DEFAULT_RAW_RECVMBOX_SIZE 0 +#define DEFAULT_UDP_RECVMBOX_SIZE 0 +#define DEFAULT_TCP_RECVMBOX_SIZE 0 +#define DEFAULT_ACCEPTMBOX_SIZE 0*/ +#define LWIP_NETCONN 1 +#define LWIP_TCPIP_TIMEOUT 0 +#define LWIP_NETCONN_SEM_PER_THREAD 0 +#define LWIP_NETCONN_FULLDUPLEX 0 +#define LWIP_SOCKET 1 +#define LWIP_COMPAT_SOCKETS 1 /* 0..2 */ +#define LWIP_POSIX_SOCKETS_IO_NAMES 1 +#define LWIP_SOCKET_OFFSET 0 +#define LWIP_TCP_KEEPALIVE 0 +#define LWIP_SO_SNDTIMEO 0 +#define LWIP_SO_RCVTIMEO 0 +#define LWIP_SO_SNDRCVTIMEO_NONSTANDARD 0 +#define LWIP_SO_RCVBUF 0 +#define LWIP_SO_LINGER 0 +#define RECV_BUFSIZE_DEFAULT INT_MAX +#define LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT 20000 +#define SO_REUSE 0 +#define SO_REUSE_RXTOALL 0 +#define LWIP_FIONREAD_LINUXMODE 0 +#define LWIP_SOCKET_SELECT 1 +#define LWIP_SOCKET_POLL 1 +#define LWIP_STATS 1 +#define LWIP_STATS_DISPLAY 0 +#define LINK_STATS 1 +#define ETHARP_STATS (LWIP_ARP) +#define IP_STATS 1 +#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG) +#define ICMP_STATS 1 +#define IGMP_STATS (LWIP_IGMP) +#define UDP_STATS (LWIP_UDP) +#define TCP_STATS (LWIP_TCP) +#define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0)) +#define MEMP_STATS (MEMP_MEM_MALLOC == 0) +#define SYS_STATS (NO_SYS == 0) +#define IP6_STATS (LWIP_IPV6) +#define ICMP6_STATS (LWIP_IPV6 && LWIP_ICMP6) +#define IP6_FRAG_STATS (LWIP_IPV6 && (LWIP_IPV6_FRAG || LWIP_IPV6_REASS)) +#define MLD6_STATS (LWIP_IPV6 && LWIP_IPV6_MLD) +#define ND6_STATS (LWIP_IPV6) +#define MIB2_STATS 0 +#define LWIP_CHECKSUM_CTRL_PER_NETIF 0 +#define CHECKSUM_GEN_IP 1 +#define CHECKSUM_GEN_UDP 1 +#define CHECKSUM_GEN_TCP 1 +#define CHECKSUM_GEN_ICMP 1 +#define CHECKSUM_GEN_ICMP6 1 +#define CHECKSUM_CHECK_IP 1 +#define CHECKSUM_CHECK_UDP 1 +#define CHECKSUM_CHECK_TCP 1 +#define CHECKSUM_CHECK_ICMP 1 +#define CHECKSUM_CHECK_ICMP6 1 +#define LWIP_CHECKSUM_ON_COPY 0 +#define LWIP_IPV6 1 +#define IPV6_REASS_MAXAGE 60 +#define LWIP_IPV6_SCOPES (LWIP_IPV6 && !LWIP_SINGLE_NETIF) +#define LWIP_IPV6_SCOPES_DEBUG 0 +#define LWIP_IPV6_NUM_ADDRESSES 3 +#define LWIP_IPV6_FORWARD 0 +#define LWIP_IPV6_FRAG 1 +#define LWIP_IPV6_REASS (LWIP_IPV6) +#define LWIP_IPV6_SEND_ROUTER_SOLICIT 1 +#define LWIP_IPV6_AUTOCONFIG (LWIP_IPV6) +#define LWIP_IPV6_ADDRESS_LIFETIMES (LWIP_IPV6_AUTOCONFIG) +#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 1 +#define LWIP_ICMP6 (LWIP_IPV6) +#define LWIP_ICMP6_DATASIZE 8 +#define LWIP_ICMP6_HL 255 +#define LWIP_IPV6_MLD (LWIP_IPV6) +#define MEMP_NUM_MLD6_GROUP 4 +#define LWIP_ND6_QUEUEING (LWIP_IPV6) +#define MEMP_NUM_ND6_QUEUE 20 +#define LWIP_ND6_NUM_NEIGHBORS 10 +#define LWIP_ND6_NUM_DESTINATIONS 10 +#define LWIP_ND6_NUM_PREFIXES 5 +#define LWIP_ND6_NUM_ROUTERS 3 +#define LWIP_ND6_MAX_MULTICAST_SOLICIT 3 +#define LWIP_ND6_MAX_UNICAST_SOLICIT 3 +#define LWIP_ND6_MAX_ANYCAST_DELAY_TIME 1000 +#define LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT 3 +#define LWIP_ND6_REACHABLE_TIME 30000 +#define LWIP_ND6_RETRANS_TIMER 1000 +#define LWIP_ND6_DELAY_FIRST_PROBE_TIME 5000 +#define LWIP_ND6_ALLOW_RA_UPDATES 1 +#define LWIP_ND6_TCP_REACHABILITY_HINTS 1 +#define LWIP_ND6_RDNSS_MAX_DNS_SERVERS 0 +#define LWIP_IPV6_DHCP6 0 +#define LWIP_IPV6_DHCP6_STATEFUL 0 +#define LWIP_IPV6_DHCP6_STATELESS LWIP_IPV6_DHCP6 +#define LWIP_DHCP6_GET_NTP_SRV 0 +#define LWIP_DHCP6_MAX_NTP_SERVERS 1 +#define LWIP_DHCP6_MAX_DNS_SERVERS DNS_MAX_SERVERS + +/* TODO: check hooks */ + +#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL +#define LWIP_DBG_TYPES_ON LWIP_DBG_ON +#define ETHARP_DEBUG LWIP_DBG_OFF +#define NETIF_DEBUG LWIP_DBG_OFF +#define PBUF_DEBUG LWIP_DBG_OFF +#define API_LIB_DEBUG LWIP_DBG_OFF +#define API_MSG_DEBUG LWIP_DBG_OFF +#define SOCKETS_DEBUG LWIP_DBG_OFF +#define ICMP_DEBUG LWIP_DBG_OFF +#define IGMP_DEBUG LWIP_DBG_OFF +#define INET_DEBUG LWIP_DBG_OFF +#define IP_DEBUG LWIP_DBG_OFF +#define IP_REASS_DEBUG LWIP_DBG_OFF +#define RAW_DEBUG LWIP_DBG_OFF +#define MEM_DEBUG LWIP_DBG_OFF +#define MEMP_DEBUG LWIP_DBG_OFF +#define SYS_DEBUG LWIP_DBG_OFF +#define TIMERS_DEBUG LWIP_DBG_OFF +#define TCP_DEBUG LWIP_DBG_OFF +#define TCP_INPUT_DEBUG LWIP_DBG_OFF +#define TCP_FR_DEBUG LWIP_DBG_OFF +#define TCP_RTO_DEBUG LWIP_DBG_OFF +#define TCP_CWND_DEBUG LWIP_DBG_OFF +#define TCP_WND_DEBUG LWIP_DBG_OFF +#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF +#define TCP_RST_DEBUG LWIP_DBG_OFF +#define TCP_QLEN_DEBUG LWIP_DBG_OFF +#define UDP_DEBUG LWIP_DBG_OFF +#define TCPIP_DEBUG LWIP_DBG_OFF +#define SLIP_DEBUG LWIP_DBG_OFF +#define DHCP_DEBUG LWIP_DBG_OFF +#define AUTOIP_DEBUG LWIP_DBG_OFF +#define DNS_DEBUG LWIP_DBG_OFF +#define IP6_DEBUG LWIP_DBG_OFF +#define DHCP6_DEBUG LWIP_DBG_OFF +#define LWIP_TESTMODE 0 + +#define LWIP_PERF 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_tcp_dualstack.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_tcp_dualstack.h new file mode 100644 index 0000000..9d70ace --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_tcp_dualstack.h @@ -0,0 +1,4 @@ +#include "test_configs/opt_dualstack.h" + +#undef LWIP_TCP +#define LWIP_TCP 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_tcp_ipv4only.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_tcp_ipv4only.h new file mode 100644 index 0000000..bd22831 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_tcp_ipv4only.h @@ -0,0 +1,4 @@ +#include "test_configs/opt_ipv4only.h" + +#undef LWIP_TCP +#define LWIP_TCP 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_tcp_ipv6only.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_tcp_ipv6only.h new file mode 100644 index 0000000..9f956e3 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_tcp_ipv6only.h @@ -0,0 +1,4 @@ +#include "test_configs/opt_ipv6only.h" + +#undef LWIP_TCP +#define LWIP_TCP 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_udp_dualstack.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_udp_dualstack.h new file mode 100644 index 0000000..c9b9e9a --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_udp_dualstack.h @@ -0,0 +1,4 @@ +#include "test_configs/opt_dualstack.h" + +#undef LWIP_UDP +#define LWIP_UDP 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_udp_ipv4only.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_udp_ipv4only.h new file mode 100644 index 0000000..7aa3ace --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_udp_ipv4only.h @@ -0,0 +1,4 @@ +#include "test_configs/opt_ipv4only.h" + +#undef LWIP_UDP +#define LWIP_UDP 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_udp_ipv6only.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_udp_ipv6only.h new file mode 100644 index 0000000..0572798 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_no_udp_ipv6only.h @@ -0,0 +1,4 @@ +#include "test_configs/opt_ipv6only.h" + +#undef LWIP_UDP +#define LWIP_UDP 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_none.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_none.h new file mode 100644 index 0000000..3c39321 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_none.h @@ -0,0 +1,2 @@ +/* test and empty lwipopts.h file */ + diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_nosys_dual.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_nosys_dual.h new file mode 100644 index 0000000..17ee97f --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_nosys_dual.h @@ -0,0 +1,295 @@ +/* test an lwipopts.h file with default contents */ +#define NO_SYS 0 +#define NO_SYS_NO_TIMERS 0 +#define LWIP_TIMERS 1 +#define LWIP_TIMERS_CUSTOM 0 +#define LWIP_MPU_COMPATIBLE 0 +#define LWIP_TCPIP_CORE_LOCKING 1 +#define LWIP_TCPIP_CORE_LOCKING_INPUT 0 +#define SYS_LIGHTWEIGHT_PROT 1 +#define MEM_LIBC_MALLOC 0 +#define MEMP_MEM_MALLOC 0 +#define MEMP_MEM_INIT 0 +#define MEM_ALIGNMENT 1 +#define MEM_SIZE 1600 +#define MEMP_OVERFLOW_CHECK 0 +#define MEMP_SANITY_CHECK 0 +#define MEM_OVERFLOW_CHECK 0 +#define MEM_SANITY_CHECK 0 +#define MEM_USE_POOLS 0 +#define MEM_USE_POOLS_TRY_BIGGER_POOL 0 +#define MEMP_USE_CUSTOM_POOLS 0 +#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0 +/*#define MEMP_NUM_PBUF 16 +#define MEMP_NUM_RAW_PCB 4 +#define MEMP_NUM_UDP_PCB 4 +#define MEMP_NUM_TCP_PCB 5 +#define MEMP_NUM_TCP_PCB_LISTEN 8 +#define MEMP_NUM_TCP_SEG 16 +#define MEMP_NUM_ALTCP_PCB MEMP_NUM_TCP_PCB +#define MEMP_NUM_REASSDATA 5 +#define MEMP_NUM_FRAG_PBUF 15 +#define MEMP_NUM_ARP_QUEUE 30 +#define MEMP_NUM_IGMP_GROUP 8 +#define MEMP_NUM_SYS_TIMEOUT (LWIP_NUM_SYS_TIMEOUT_INTERNAL + 2) +#define MEMP_NUM_NETBUF 2 +#define MEMP_NUM_NETCONN 4 +#define MEMP_NUM_SELECT_CB 4 +#define MEMP_NUM_TCPIP_MSG_API 8 +#define MEMP_NUM_TCPIP_MSG_INPKT 8 +#define MEMP_NUM_NETDB 1 +#define MEMP_NUM_LOCALHOSTLIST 1 +#define PBUF_POOL_SIZE 16 +#define MEMP_NUM_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_DNS_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_NETIFAPI_MSG MEMP_NUM_TCPIP_MSG_API*/ +#define LWIP_ARP 1 +#define ARP_TABLE_SIZE 10 +#define ARP_MAXAGE 300 +#define ARP_QUEUEING 0 +#define ARP_QUEUE_LEN 3 +#define ETHARP_SUPPORT_VLAN 0 +#define LWIP_ETHERNET LWIP_ARP +#define ETH_PAD_SIZE 0 +#define ETHARP_SUPPORT_STATIC_ENTRIES 0 +#define ETHARP_TABLE_MATCH_NETIF !LWIP_SINGLE_NETIF +#define LWIP_IPV4 1 +#define IP_FORWARD 0 +#define IP_REASSEMBLY 1 +#define IP_FRAG 1 +#define IP_OPTIONS_ALLOWED 1 +#define IP_REASS_MAXAGE 15 +#define IP_REASS_MAX_PBUFS 10 +#define IP_DEFAULT_TTL 255 +#define IP_SOF_BROADCAST 0 +#define IP_SOF_BROADCAST_RECV 0 +#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0 +#define LWIP_ICMP 1 +#define ICMP_TTL (IP_DEFAULT_TTL) +#define LWIP_BROADCAST_PING 0 +#define LWIP_MULTICAST_PING 0 +#define LWIP_RAW 0 +#define RAW_TTL (IP_DEFAULT_TTL) +#define LWIP_DHCP 1 +#define LWIP_DHCP_CHECK_LINK_UP 0 +#define LWIP_DHCP_BOOTP_FILE 0 +#define LWIP_DHCP_GET_NTP_SRV 0 +#define LWIP_DHCP_MAX_NTP_SERVERS 1 +#define LWIP_DHCP_MAX_DNS_SERVERS DNS_MAX_SERVERS +#define LWIP_AUTOIP 0 +#define LWIP_DHCP_AUTOIP_COOP 0 +#define LWIP_DHCP_AUTOIP_COOP_TRIES 9 +#define LWIP_MIB2_CALLBACKS 0 +#define LWIP_MULTICAST_TX_OPTIONS ((LWIP_IGMP || LWIP_IPV6_MLD) && (LWIP_UDP || LWIP_RAW)) +#define LWIP_IGMP 0 +#define LWIP_DNS 0 +#define DNS_TABLE_SIZE 4 +#define DNS_MAX_NAME_LENGTH 256 +#define DNS_MAX_SERVERS 2 +#define DNS_MAX_RETRIES 4 +#define DNS_DOES_NAME_CHECK 1 +#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT) +#define DNS_LOCAL_HOSTLIST 0 +#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0 +#define LWIP_DNS_SUPPORT_MDNS_QUERIES 0 +#define LWIP_UDP 1 +#define LWIP_UDPLITE 0 +#define UDP_TTL (IP_DEFAULT_TTL) +#define LWIP_NETBUF_RECVINFO 0 +#define LWIP_TCP 1 +#define TCP_TTL (IP_DEFAULT_TTL) +#define TCP_WND (4 * TCP_MSS) +#define TCP_MAXRTX 12 +#define TCP_SYNMAXRTX 6 +#define TCP_QUEUE_OOSEQ (LWIP_TCP) +#define LWIP_TCP_SACK_OUT 0 +#define LWIP_TCP_MAX_SACK_NUM 4 +#define TCP_MSS 536 +#define TCP_CALCULATE_EFF_SEND_MSS 1 +#define TCP_SND_BUF (2 * TCP_MSS) +#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS)) +#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1) +#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5) +#define TCP_OOSEQ_MAX_BYTES 0 +#define TCP_OOSEQ_BYTES_LIMIT(pcb) TCP_OOSEQ_MAX_BYTES +#define TCP_OOSEQ_MAX_PBUFS 0 +#define TCP_OOSEQ_PBUFS_LIMIT(pcb) TCP_OOSEQ_MAX_PBUFS +#define TCP_LISTEN_BACKLOG 0 +#define TCP_DEFAULT_LISTEN_BACKLOG 0xff +#define TCP_OVERSIZE TCP_MSS +#define LWIP_TCP_TIMESTAMPS 0 +#define TCP_WND_UPDATE_THRESHOLD LWIP_MIN((TCP_WND / 4), (TCP_MSS * 4)) +#define LWIP_EVENT_API 0 +#define LWIP_CALLBACK_API 1 +#define LWIP_WND_SCALE 0 +#define TCP_RCV_SCALE 0 +#define LWIP_TCP_PCB_NUM_EXT_ARGS 0 +#define LWIP_ALTCP 0 +#define LWIP_ALTCP_TLS 0 +#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE) +#define PBUF_LINK_ENCAPSULATION_HLEN 0 +#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN) +#define LWIP_PBUF_REF_T u8_t +#define LWIP_SINGLE_NETIF 0 +#define LWIP_NETIF_HOSTNAME 0 +#define LWIP_NETIF_API 0 +#define LWIP_NETIF_STATUS_CALLBACK 0 +#define LWIP_NETIF_EXT_STATUS_CALLBACK 0 +#define LWIP_NETIF_LINK_CALLBACK 0 +#define LWIP_NETIF_REMOVE_CALLBACK 0 +#define LWIP_NETIF_HWADDRHINT 0 +#define LWIP_NETIF_TX_SINGLE_PBUF 0 +#define LWIP_NUM_NETIF_CLIENT_DATA 0 +#define LWIP_HAVE_LOOPIF (LWIP_NETIF_LOOPBACK && !LWIP_SINGLE_NETIF) +#define LWIP_LOOPIF_MULTICAST 0 +#define LWIP_NETIF_LOOPBACK 0 +#define LWIP_LOOPBACK_MAX_PBUFS 0 +#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS) +/*#define TCPIP_THREAD_NAME "tcpip_thread" +#define TCPIP_THREAD_STACKSIZE 0 +#define TCPIP_THREAD_PRIO 1 +#define TCPIP_MBOX_SIZE 0 +#define LWIP_TCPIP_THREAD_ALIVE() +#define SLIPIF_THREAD_NAME "slipif_loop" +#define SLIPIF_THREAD_STACKSIZE 0 +#define SLIPIF_THREAD_PRIO 1 +#define DEFAULT_THREAD_NAME "lwIP" +#define DEFAULT_THREAD_STACKSIZE 0 +#define DEFAULT_THREAD_PRIO 1 +#define DEFAULT_RAW_RECVMBOX_SIZE 0 +#define DEFAULT_UDP_RECVMBOX_SIZE 0 +#define DEFAULT_TCP_RECVMBOX_SIZE 0 +#define DEFAULT_ACCEPTMBOX_SIZE 0*/ +#define LWIP_NETCONN 0 +#define LWIP_TCPIP_TIMEOUT 0 +#define LWIP_NETCONN_SEM_PER_THREAD 0 +#define LWIP_NETCONN_FULLDUPLEX 0 +#define LWIP_SOCKET 0 +#define LWIP_COMPAT_SOCKETS 1 /* 0..2 */ +#define LWIP_POSIX_SOCKETS_IO_NAMES 1 +#define LWIP_SOCKET_OFFSET 0 +#define LWIP_TCP_KEEPALIVE 0 +#define LWIP_SO_SNDTIMEO 0 +#define LWIP_SO_RCVTIMEO 0 +#define LWIP_SO_SNDRCVTIMEO_NONSTANDARD 0 +#define LWIP_SO_RCVBUF 0 +#define LWIP_SO_LINGER 0 +#define RECV_BUFSIZE_DEFAULT INT_MAX +#define LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT 20000 +#define SO_REUSE 0 +#define SO_REUSE_RXTOALL 0 +#define LWIP_FIONREAD_LINUXMODE 0 +#define LWIP_SOCKET_SELECT 1 +#define LWIP_SOCKET_POLL 1 +#define LWIP_STATS 1 +#define LWIP_STATS_DISPLAY 0 +#define LINK_STATS 1 +#define ETHARP_STATS (LWIP_ARP) +#define IP_STATS 1 +#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG) +#define ICMP_STATS 1 +#define IGMP_STATS (LWIP_IGMP) +#define UDP_STATS (LWIP_UDP) +#define TCP_STATS (LWIP_TCP) +#define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0)) +#define MEMP_STATS (MEMP_MEM_MALLOC == 0) +#define SYS_STATS (NO_SYS == 0) +#define IP6_STATS (LWIP_IPV6) +#define ICMP6_STATS (LWIP_IPV6 && LWIP_ICMP6) +#define IP6_FRAG_STATS (LWIP_IPV6 && (LWIP_IPV6_FRAG || LWIP_IPV6_REASS)) +#define MLD6_STATS (LWIP_IPV6 && LWIP_IPV6_MLD) +#define ND6_STATS (LWIP_IPV6) +#define MIB2_STATS 0 +#define LWIP_CHECKSUM_CTRL_PER_NETIF 0 +#define CHECKSUM_GEN_IP 1 +#define CHECKSUM_GEN_UDP 1 +#define CHECKSUM_GEN_TCP 1 +#define CHECKSUM_GEN_ICMP 1 +#define CHECKSUM_GEN_ICMP6 1 +#define CHECKSUM_CHECK_IP 1 +#define CHECKSUM_CHECK_UDP 1 +#define CHECKSUM_CHECK_TCP 1 +#define CHECKSUM_CHECK_ICMP 1 +#define CHECKSUM_CHECK_ICMP6 1 +#define LWIP_CHECKSUM_ON_COPY 0 +#define LWIP_IPV6 1 +#define IPV6_REASS_MAXAGE 60 +#define LWIP_IPV6_SCOPES (LWIP_IPV6 && !LWIP_SINGLE_NETIF) +#define LWIP_IPV6_SCOPES_DEBUG 0 +#define LWIP_IPV6_NUM_ADDRESSES 3 +#define LWIP_IPV6_FORWARD 0 +#define LWIP_IPV6_FRAG 1 +#define LWIP_IPV6_REASS (LWIP_IPV6) +#define LWIP_IPV6_SEND_ROUTER_SOLICIT 1 +#define LWIP_IPV6_AUTOCONFIG (LWIP_IPV6) +#define LWIP_IPV6_ADDRESS_LIFETIMES (LWIP_IPV6_AUTOCONFIG) +#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 1 +#define LWIP_ICMP6 (LWIP_IPV6) +#define LWIP_ICMP6_DATASIZE 8 +#define LWIP_ICMP6_HL 255 +#define LWIP_IPV6_MLD (LWIP_IPV6) +#define MEMP_NUM_MLD6_GROUP 4 +#define LWIP_ND6_QUEUEING (LWIP_IPV6) +#define MEMP_NUM_ND6_QUEUE 20 +#define LWIP_ND6_NUM_NEIGHBORS 10 +#define LWIP_ND6_NUM_DESTINATIONS 10 +#define LWIP_ND6_NUM_PREFIXES 5 +#define LWIP_ND6_NUM_ROUTERS 3 +#define LWIP_ND6_MAX_MULTICAST_SOLICIT 3 +#define LWIP_ND6_MAX_UNICAST_SOLICIT 3 +#define LWIP_ND6_MAX_ANYCAST_DELAY_TIME 1000 +#define LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT 3 +#define LWIP_ND6_REACHABLE_TIME 30000 +#define LWIP_ND6_RETRANS_TIMER 1000 +#define LWIP_ND6_DELAY_FIRST_PROBE_TIME 5000 +#define LWIP_ND6_ALLOW_RA_UPDATES 1 +#define LWIP_ND6_TCP_REACHABILITY_HINTS 1 +#define LWIP_ND6_RDNSS_MAX_DNS_SERVERS 0 +#define LWIP_IPV6_DHCP6 0 +#define LWIP_IPV6_DHCP6_STATEFUL 0 +#define LWIP_IPV6_DHCP6_STATELESS LWIP_IPV6_DHCP6 +#define LWIP_DHCP6_GET_NTP_SRV 0 +#define LWIP_DHCP6_MAX_NTP_SERVERS 1 +#define LWIP_DHCP6_MAX_DNS_SERVERS DNS_MAX_SERVERS + +/* TODO: check hooks */ + +#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL +#define LWIP_DBG_TYPES_ON LWIP_DBG_ON +#define ETHARP_DEBUG LWIP_DBG_OFF +#define NETIF_DEBUG LWIP_DBG_OFF +#define PBUF_DEBUG LWIP_DBG_OFF +#define API_LIB_DEBUG LWIP_DBG_OFF +#define API_MSG_DEBUG LWIP_DBG_OFF +#define SOCKETS_DEBUG LWIP_DBG_OFF +#define ICMP_DEBUG LWIP_DBG_OFF +#define IGMP_DEBUG LWIP_DBG_OFF +#define INET_DEBUG LWIP_DBG_OFF +#define IP_DEBUG LWIP_DBG_OFF +#define IP_REASS_DEBUG LWIP_DBG_OFF +#define RAW_DEBUG LWIP_DBG_OFF +#define MEM_DEBUG LWIP_DBG_OFF +#define MEMP_DEBUG LWIP_DBG_OFF +#define SYS_DEBUG LWIP_DBG_OFF +#define TIMERS_DEBUG LWIP_DBG_OFF +#define TCP_DEBUG LWIP_DBG_OFF +#define TCP_INPUT_DEBUG LWIP_DBG_OFF +#define TCP_FR_DEBUG LWIP_DBG_OFF +#define TCP_RTO_DEBUG LWIP_DBG_OFF +#define TCP_CWND_DEBUG LWIP_DBG_OFF +#define TCP_WND_DEBUG LWIP_DBG_OFF +#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF +#define TCP_RST_DEBUG LWIP_DBG_OFF +#define TCP_QLEN_DEBUG LWIP_DBG_OFF +#define UDP_DEBUG LWIP_DBG_OFF +#define TCPIP_DEBUG LWIP_DBG_OFF +#define SLIP_DEBUG LWIP_DBG_OFF +#define DHCP_DEBUG LWIP_DBG_OFF +#define AUTOIP_DEBUG LWIP_DBG_OFF +#define DNS_DEBUG LWIP_DBG_OFF +#define IP6_DEBUG LWIP_DBG_OFF +#define DHCP6_DEBUG LWIP_DBG_OFF +#define LWIP_TESTMODE 0 + +#define LWIP_PERF 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_nosys_ipv4.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_nosys_ipv4.h new file mode 100644 index 0000000..024d79b --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_nosys_ipv4.h @@ -0,0 +1,295 @@ +/* test an lwipopts.h file with default contents */ +#define NO_SYS 0 +#define NO_SYS_NO_TIMERS 0 +#define LWIP_TIMERS 1 +#define LWIP_TIMERS_CUSTOM 0 +#define LWIP_MPU_COMPATIBLE 0 +#define LWIP_TCPIP_CORE_LOCKING 1 +#define LWIP_TCPIP_CORE_LOCKING_INPUT 0 +#define SYS_LIGHTWEIGHT_PROT 1 +#define MEM_LIBC_MALLOC 0 +#define MEMP_MEM_MALLOC 0 +#define MEMP_MEM_INIT 0 +#define MEM_ALIGNMENT 1 +#define MEM_SIZE 1600 +#define MEMP_OVERFLOW_CHECK 0 +#define MEMP_SANITY_CHECK 0 +#define MEM_OVERFLOW_CHECK 0 +#define MEM_SANITY_CHECK 0 +#define MEM_USE_POOLS 0 +#define MEM_USE_POOLS_TRY_BIGGER_POOL 0 +#define MEMP_USE_CUSTOM_POOLS 0 +#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0 +/*#define MEMP_NUM_PBUF 16 +#define MEMP_NUM_RAW_PCB 4 +#define MEMP_NUM_UDP_PCB 4 +#define MEMP_NUM_TCP_PCB 5 +#define MEMP_NUM_TCP_PCB_LISTEN 8 +#define MEMP_NUM_TCP_SEG 16 +#define MEMP_NUM_ALTCP_PCB MEMP_NUM_TCP_PCB +#define MEMP_NUM_REASSDATA 5 +#define MEMP_NUM_FRAG_PBUF 15 +#define MEMP_NUM_ARP_QUEUE 30 +#define MEMP_NUM_IGMP_GROUP 8 +#define MEMP_NUM_SYS_TIMEOUT (LWIP_NUM_SYS_TIMEOUT_INTERNAL + 2) +#define MEMP_NUM_NETBUF 2 +#define MEMP_NUM_NETCONN 4 +#define MEMP_NUM_SELECT_CB 4 +#define MEMP_NUM_TCPIP_MSG_API 8 +#define MEMP_NUM_TCPIP_MSG_INPKT 8 +#define MEMP_NUM_NETDB 1 +#define MEMP_NUM_LOCALHOSTLIST 1 +#define PBUF_POOL_SIZE 16 +#define MEMP_NUM_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_DNS_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_NETIFAPI_MSG MEMP_NUM_TCPIP_MSG_API*/ +#define LWIP_ARP 1 +#define ARP_TABLE_SIZE 10 +#define ARP_MAXAGE 300 +#define ARP_QUEUEING 0 +#define ARP_QUEUE_LEN 3 +#define ETHARP_SUPPORT_VLAN 0 +#define LWIP_ETHERNET LWIP_ARP +#define ETH_PAD_SIZE 0 +#define ETHARP_SUPPORT_STATIC_ENTRIES 0 +#define ETHARP_TABLE_MATCH_NETIF !LWIP_SINGLE_NETIF +#define LWIP_IPV4 1 +#define IP_FORWARD 0 +#define IP_REASSEMBLY 1 +#define IP_FRAG 1 +#define IP_OPTIONS_ALLOWED 1 +#define IP_REASS_MAXAGE 15 +#define IP_REASS_MAX_PBUFS 10 +#define IP_DEFAULT_TTL 255 +#define IP_SOF_BROADCAST 0 +#define IP_SOF_BROADCAST_RECV 0 +#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0 +#define LWIP_ICMP 1 +#define ICMP_TTL (IP_DEFAULT_TTL) +#define LWIP_BROADCAST_PING 0 +#define LWIP_MULTICAST_PING 0 +#define LWIP_RAW 0 +#define RAW_TTL (IP_DEFAULT_TTL) +#define LWIP_DHCP 1 +#define LWIP_DHCP_CHECK_LINK_UP 0 +#define LWIP_DHCP_BOOTP_FILE 0 +#define LWIP_DHCP_GET_NTP_SRV 0 +#define LWIP_DHCP_MAX_NTP_SERVERS 1 +#define LWIP_DHCP_MAX_DNS_SERVERS DNS_MAX_SERVERS +#define LWIP_AUTOIP 0 +#define LWIP_DHCP_AUTOIP_COOP 0 +#define LWIP_DHCP_AUTOIP_COOP_TRIES 9 +#define LWIP_MIB2_CALLBACKS 0 +#define LWIP_MULTICAST_TX_OPTIONS ((LWIP_IGMP || LWIP_IPV6_MLD) && (LWIP_UDP || LWIP_RAW)) +#define LWIP_IGMP 0 +#define LWIP_DNS 0 +#define DNS_TABLE_SIZE 4 +#define DNS_MAX_NAME_LENGTH 256 +#define DNS_MAX_SERVERS 2 +#define DNS_MAX_RETRIES 4 +#define DNS_DOES_NAME_CHECK 1 +#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT) +#define DNS_LOCAL_HOSTLIST 0 +#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0 +#define LWIP_DNS_SUPPORT_MDNS_QUERIES 0 +#define LWIP_UDP 1 +#define LWIP_UDPLITE 0 +#define UDP_TTL (IP_DEFAULT_TTL) +#define LWIP_NETBUF_RECVINFO 0 +#define LWIP_TCP 1 +#define TCP_TTL (IP_DEFAULT_TTL) +#define TCP_WND (4 * TCP_MSS) +#define TCP_MAXRTX 12 +#define TCP_SYNMAXRTX 6 +#define TCP_QUEUE_OOSEQ (LWIP_TCP) +#define LWIP_TCP_SACK_OUT 0 +#define LWIP_TCP_MAX_SACK_NUM 4 +#define TCP_MSS 536 +#define TCP_CALCULATE_EFF_SEND_MSS 1 +#define TCP_SND_BUF (2 * TCP_MSS) +#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS)) +#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1) +#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5) +#define TCP_OOSEQ_MAX_BYTES 0 +#define TCP_OOSEQ_BYTES_LIMIT(pcb) TCP_OOSEQ_MAX_BYTES +#define TCP_OOSEQ_MAX_PBUFS 0 +#define TCP_OOSEQ_PBUFS_LIMIT(pcb) TCP_OOSEQ_MAX_PBUFS +#define TCP_LISTEN_BACKLOG 0 +#define TCP_DEFAULT_LISTEN_BACKLOG 0xff +#define TCP_OVERSIZE TCP_MSS +#define LWIP_TCP_TIMESTAMPS 0 +#define TCP_WND_UPDATE_THRESHOLD LWIP_MIN((TCP_WND / 4), (TCP_MSS * 4)) +#define LWIP_EVENT_API 0 +#define LWIP_CALLBACK_API 1 +#define LWIP_WND_SCALE 0 +#define TCP_RCV_SCALE 0 +#define LWIP_TCP_PCB_NUM_EXT_ARGS 0 +#define LWIP_ALTCP 0 +#define LWIP_ALTCP_TLS 0 +#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE) +#define PBUF_LINK_ENCAPSULATION_HLEN 0 +#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN) +#define LWIP_PBUF_REF_T u8_t +#define LWIP_SINGLE_NETIF 0 +#define LWIP_NETIF_HOSTNAME 0 +#define LWIP_NETIF_API 0 +#define LWIP_NETIF_STATUS_CALLBACK 0 +#define LWIP_NETIF_EXT_STATUS_CALLBACK 0 +#define LWIP_NETIF_LINK_CALLBACK 0 +#define LWIP_NETIF_REMOVE_CALLBACK 0 +#define LWIP_NETIF_HWADDRHINT 0 +#define LWIP_NETIF_TX_SINGLE_PBUF 0 +#define LWIP_NUM_NETIF_CLIENT_DATA 0 +#define LWIP_HAVE_LOOPIF (LWIP_NETIF_LOOPBACK && !LWIP_SINGLE_NETIF) +#define LWIP_LOOPIF_MULTICAST 0 +#define LWIP_NETIF_LOOPBACK 0 +#define LWIP_LOOPBACK_MAX_PBUFS 0 +#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS) +/*#define TCPIP_THREAD_NAME "tcpip_thread" +#define TCPIP_THREAD_STACKSIZE 0 +#define TCPIP_THREAD_PRIO 1 +#define TCPIP_MBOX_SIZE 0 +#define LWIP_TCPIP_THREAD_ALIVE() +#define SLIPIF_THREAD_NAME "slipif_loop" +#define SLIPIF_THREAD_STACKSIZE 0 +#define SLIPIF_THREAD_PRIO 1 +#define DEFAULT_THREAD_NAME "lwIP" +#define DEFAULT_THREAD_STACKSIZE 0 +#define DEFAULT_THREAD_PRIO 1 +#define DEFAULT_RAW_RECVMBOX_SIZE 0 +#define DEFAULT_UDP_RECVMBOX_SIZE 0 +#define DEFAULT_TCP_RECVMBOX_SIZE 0 +#define DEFAULT_ACCEPTMBOX_SIZE 0*/ +#define LWIP_NETCONN 0 +#define LWIP_TCPIP_TIMEOUT 0 +#define LWIP_NETCONN_SEM_PER_THREAD 0 +#define LWIP_NETCONN_FULLDUPLEX 0 +#define LWIP_SOCKET 0 +#define LWIP_COMPAT_SOCKETS 1 /* 0..2 */ +#define LWIP_POSIX_SOCKETS_IO_NAMES 1 +#define LWIP_SOCKET_OFFSET 0 +#define LWIP_TCP_KEEPALIVE 0 +#define LWIP_SO_SNDTIMEO 0 +#define LWIP_SO_RCVTIMEO 0 +#define LWIP_SO_SNDRCVTIMEO_NONSTANDARD 0 +#define LWIP_SO_RCVBUF 0 +#define LWIP_SO_LINGER 0 +#define RECV_BUFSIZE_DEFAULT INT_MAX +#define LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT 20000 +#define SO_REUSE 0 +#define SO_REUSE_RXTOALL 0 +#define LWIP_FIONREAD_LINUXMODE 0 +#define LWIP_SOCKET_SELECT 1 +#define LWIP_SOCKET_POLL 1 +#define LWIP_STATS 1 +#define LWIP_STATS_DISPLAY 0 +#define LINK_STATS 1 +#define ETHARP_STATS (LWIP_ARP) +#define IP_STATS 1 +#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG) +#define ICMP_STATS 1 +#define IGMP_STATS (LWIP_IGMP) +#define UDP_STATS (LWIP_UDP) +#define TCP_STATS (LWIP_TCP) +#define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0)) +#define MEMP_STATS (MEMP_MEM_MALLOC == 0) +#define SYS_STATS (NO_SYS == 0) +#define IP6_STATS (LWIP_IPV6) +#define ICMP6_STATS (LWIP_IPV6 && LWIP_ICMP6) +#define IP6_FRAG_STATS (LWIP_IPV6 && (LWIP_IPV6_FRAG || LWIP_IPV6_REASS)) +#define MLD6_STATS (LWIP_IPV6 && LWIP_IPV6_MLD) +#define ND6_STATS (LWIP_IPV6) +#define MIB2_STATS 0 +#define LWIP_CHECKSUM_CTRL_PER_NETIF 0 +#define CHECKSUM_GEN_IP 1 +#define CHECKSUM_GEN_UDP 1 +#define CHECKSUM_GEN_TCP 1 +#define CHECKSUM_GEN_ICMP 1 +#define CHECKSUM_GEN_ICMP6 1 +#define CHECKSUM_CHECK_IP 1 +#define CHECKSUM_CHECK_UDP 1 +#define CHECKSUM_CHECK_TCP 1 +#define CHECKSUM_CHECK_ICMP 1 +#define CHECKSUM_CHECK_ICMP6 1 +#define LWIP_CHECKSUM_ON_COPY 0 +#define LWIP_IPV6 0 +#define IPV6_REASS_MAXAGE 60 +#define LWIP_IPV6_SCOPES (LWIP_IPV6 && !LWIP_SINGLE_NETIF) +#define LWIP_IPV6_SCOPES_DEBUG 0 +#define LWIP_IPV6_NUM_ADDRESSES 3 +#define LWIP_IPV6_FORWARD 0 +#define LWIP_IPV6_FRAG 1 +#define LWIP_IPV6_REASS (LWIP_IPV6) +#define LWIP_IPV6_SEND_ROUTER_SOLICIT 1 +#define LWIP_IPV6_AUTOCONFIG (LWIP_IPV6) +#define LWIP_IPV6_ADDRESS_LIFETIMES (LWIP_IPV6_AUTOCONFIG) +#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 1 +#define LWIP_ICMP6 (LWIP_IPV6) +#define LWIP_ICMP6_DATASIZE 8 +#define LWIP_ICMP6_HL 255 +#define LWIP_IPV6_MLD (LWIP_IPV6) +#define MEMP_NUM_MLD6_GROUP 4 +#define LWIP_ND6_QUEUEING (LWIP_IPV6) +#define MEMP_NUM_ND6_QUEUE 20 +#define LWIP_ND6_NUM_NEIGHBORS 10 +#define LWIP_ND6_NUM_DESTINATIONS 10 +#define LWIP_ND6_NUM_PREFIXES 5 +#define LWIP_ND6_NUM_ROUTERS 3 +#define LWIP_ND6_MAX_MULTICAST_SOLICIT 3 +#define LWIP_ND6_MAX_UNICAST_SOLICIT 3 +#define LWIP_ND6_MAX_ANYCAST_DELAY_TIME 1000 +#define LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT 3 +#define LWIP_ND6_REACHABLE_TIME 30000 +#define LWIP_ND6_RETRANS_TIMER 1000 +#define LWIP_ND6_DELAY_FIRST_PROBE_TIME 5000 +#define LWIP_ND6_ALLOW_RA_UPDATES 1 +#define LWIP_ND6_TCP_REACHABILITY_HINTS 1 +#define LWIP_ND6_RDNSS_MAX_DNS_SERVERS 0 +#define LWIP_IPV6_DHCP6 0 +#define LWIP_IPV6_DHCP6_STATEFUL 0 +#define LWIP_IPV6_DHCP6_STATELESS LWIP_IPV6_DHCP6 +#define LWIP_DHCP6_GET_NTP_SRV 0 +#define LWIP_DHCP6_MAX_NTP_SERVERS 1 +#define LWIP_DHCP6_MAX_DNS_SERVERS DNS_MAX_SERVERS + +/* TODO: check hooks */ + +#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL +#define LWIP_DBG_TYPES_ON LWIP_DBG_ON +#define ETHARP_DEBUG LWIP_DBG_OFF +#define NETIF_DEBUG LWIP_DBG_OFF +#define PBUF_DEBUG LWIP_DBG_OFF +#define API_LIB_DEBUG LWIP_DBG_OFF +#define API_MSG_DEBUG LWIP_DBG_OFF +#define SOCKETS_DEBUG LWIP_DBG_OFF +#define ICMP_DEBUG LWIP_DBG_OFF +#define IGMP_DEBUG LWIP_DBG_OFF +#define INET_DEBUG LWIP_DBG_OFF +#define IP_DEBUG LWIP_DBG_OFF +#define IP_REASS_DEBUG LWIP_DBG_OFF +#define RAW_DEBUG LWIP_DBG_OFF +#define MEM_DEBUG LWIP_DBG_OFF +#define MEMP_DEBUG LWIP_DBG_OFF +#define SYS_DEBUG LWIP_DBG_OFF +#define TIMERS_DEBUG LWIP_DBG_OFF +#define TCP_DEBUG LWIP_DBG_OFF +#define TCP_INPUT_DEBUG LWIP_DBG_OFF +#define TCP_FR_DEBUG LWIP_DBG_OFF +#define TCP_RTO_DEBUG LWIP_DBG_OFF +#define TCP_CWND_DEBUG LWIP_DBG_OFF +#define TCP_WND_DEBUG LWIP_DBG_OFF +#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF +#define TCP_RST_DEBUG LWIP_DBG_OFF +#define TCP_QLEN_DEBUG LWIP_DBG_OFF +#define UDP_DEBUG LWIP_DBG_OFF +#define TCPIP_DEBUG LWIP_DBG_OFF +#define SLIP_DEBUG LWIP_DBG_OFF +#define DHCP_DEBUG LWIP_DBG_OFF +#define AUTOIP_DEBUG LWIP_DBG_OFF +#define DNS_DEBUG LWIP_DBG_OFF +#define IP6_DEBUG LWIP_DBG_OFF +#define DHCP6_DEBUG LWIP_DBG_OFF +#define LWIP_TESTMODE 0 + +#define LWIP_PERF 0 diff --git a/middleware/lwip/contrib/examples/example_app/test_configs/opt_nosys_ipv6.h b/middleware/lwip/contrib/examples/example_app/test_configs/opt_nosys_ipv6.h new file mode 100644 index 0000000..d027352 --- /dev/null +++ b/middleware/lwip/contrib/examples/example_app/test_configs/opt_nosys_ipv6.h @@ -0,0 +1,295 @@ +/* test an lwipopts.h file with default contents */ +#define NO_SYS 0 +#define NO_SYS_NO_TIMERS 0 +#define LWIP_TIMERS 1 +#define LWIP_TIMERS_CUSTOM 0 +#define LWIP_MPU_COMPATIBLE 0 +#define LWIP_TCPIP_CORE_LOCKING 1 +#define LWIP_TCPIP_CORE_LOCKING_INPUT 0 +#define SYS_LIGHTWEIGHT_PROT 1 +#define MEM_LIBC_MALLOC 0 +#define MEMP_MEM_MALLOC 0 +#define MEMP_MEM_INIT 0 +#define MEM_ALIGNMENT 1 +#define MEM_SIZE 1600 +#define MEMP_OVERFLOW_CHECK 0 +#define MEMP_SANITY_CHECK 0 +#define MEM_OVERFLOW_CHECK 0 +#define MEM_SANITY_CHECK 0 +#define MEM_USE_POOLS 0 +#define MEM_USE_POOLS_TRY_BIGGER_POOL 0 +#define MEMP_USE_CUSTOM_POOLS 0 +#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0 +/*#define MEMP_NUM_PBUF 16 +#define MEMP_NUM_RAW_PCB 4 +#define MEMP_NUM_UDP_PCB 4 +#define MEMP_NUM_TCP_PCB 5 +#define MEMP_NUM_TCP_PCB_LISTEN 8 +#define MEMP_NUM_TCP_SEG 16 +#define MEMP_NUM_ALTCP_PCB MEMP_NUM_TCP_PCB +#define MEMP_NUM_REASSDATA 5 +#define MEMP_NUM_FRAG_PBUF 15 +#define MEMP_NUM_ARP_QUEUE 30 +#define MEMP_NUM_IGMP_GROUP 8 +#define MEMP_NUM_SYS_TIMEOUT (LWIP_NUM_SYS_TIMEOUT_INTERNAL + 2) +#define MEMP_NUM_NETBUF 2 +#define MEMP_NUM_NETCONN 4 +#define MEMP_NUM_SELECT_CB 4 +#define MEMP_NUM_TCPIP_MSG_API 8 +#define MEMP_NUM_TCPIP_MSG_INPKT 8 +#define MEMP_NUM_NETDB 1 +#define MEMP_NUM_LOCALHOSTLIST 1 +#define PBUF_POOL_SIZE 16 +#define MEMP_NUM_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_DNS_API_MSG MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA MEMP_NUM_TCPIP_MSG_API +#define MEMP_NUM_NETIFAPI_MSG MEMP_NUM_TCPIP_MSG_API*/ +#define LWIP_ARP 1 +#define ARP_TABLE_SIZE 10 +#define ARP_MAXAGE 300 +#define ARP_QUEUEING 0 +#define ARP_QUEUE_LEN 3 +#define ETHARP_SUPPORT_VLAN 0 +#define LWIP_ETHERNET LWIP_ARP +#define ETH_PAD_SIZE 0 +#define ETHARP_SUPPORT_STATIC_ENTRIES 0 +#define ETHARP_TABLE_MATCH_NETIF !LWIP_SINGLE_NETIF +#define LWIP_IPV4 0 +#define IP_FORWARD 0 +#define IP_REASSEMBLY 1 +#define IP_FRAG 1 +#define IP_OPTIONS_ALLOWED 1 +#define IP_REASS_MAXAGE 15 +#define IP_REASS_MAX_PBUFS 10 +#define IP_DEFAULT_TTL 255 +#define IP_SOF_BROADCAST 0 +#define IP_SOF_BROADCAST_RECV 0 +#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0 +#define LWIP_ICMP 1 +#define ICMP_TTL (IP_DEFAULT_TTL) +#define LWIP_BROADCAST_PING 0 +#define LWIP_MULTICAST_PING 0 +#define LWIP_RAW 0 +#define RAW_TTL (IP_DEFAULT_TTL) +#define LWIP_DHCP 0 +#define LWIP_DHCP_CHECK_LINK_UP 0 +#define LWIP_DHCP_BOOTP_FILE 0 +#define LWIP_DHCP_GET_NTP_SRV 0 +#define LWIP_DHCP_MAX_NTP_SERVERS 1 +#define LWIP_DHCP_MAX_DNS_SERVERS DNS_MAX_SERVERS +#define LWIP_AUTOIP 0 +#define LWIP_DHCP_AUTOIP_COOP 0 +#define LWIP_DHCP_AUTOIP_COOP_TRIES 9 +#define LWIP_MIB2_CALLBACKS 0 +#define LWIP_MULTICAST_TX_OPTIONS ((LWIP_IGMP || LWIP_IPV6_MLD) && (LWIP_UDP || LWIP_RAW)) +#define LWIP_IGMP 0 +#define LWIP_DNS 0 +#define DNS_TABLE_SIZE 4 +#define DNS_MAX_NAME_LENGTH 256 +#define DNS_MAX_SERVERS 2 +#define DNS_MAX_RETRIES 4 +#define DNS_DOES_NAME_CHECK 1 +#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT) +#define DNS_LOCAL_HOSTLIST 0 +#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0 +#define LWIP_DNS_SUPPORT_MDNS_QUERIES 0 +#define LWIP_UDP 1 +#define LWIP_UDPLITE 0 +#define UDP_TTL (IP_DEFAULT_TTL) +#define LWIP_NETBUF_RECVINFO 0 +#define LWIP_TCP 1 +#define TCP_TTL (IP_DEFAULT_TTL) +#define TCP_WND (4 * TCP_MSS) +#define TCP_MAXRTX 12 +#define TCP_SYNMAXRTX 6 +#define TCP_QUEUE_OOSEQ (LWIP_TCP) +#define LWIP_TCP_SACK_OUT 0 +#define LWIP_TCP_MAX_SACK_NUM 4 +#define TCP_MSS 536 +#define TCP_CALCULATE_EFF_SEND_MSS 1 +#define TCP_SND_BUF (2 * TCP_MSS) +#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS)) +#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1) +#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5) +#define TCP_OOSEQ_MAX_BYTES 0 +#define TCP_OOSEQ_BYTES_LIMIT(pcb) TCP_OOSEQ_MAX_BYTES +#define TCP_OOSEQ_MAX_PBUFS 0 +#define TCP_OOSEQ_PBUFS_LIMIT(pcb) TCP_OOSEQ_MAX_PBUFS +#define TCP_LISTEN_BACKLOG 0 +#define TCP_DEFAULT_LISTEN_BACKLOG 0xff +#define TCP_OVERSIZE TCP_MSS +#define LWIP_TCP_TIMESTAMPS 0 +#define TCP_WND_UPDATE_THRESHOLD LWIP_MIN((TCP_WND / 4), (TCP_MSS * 4)) +#define LWIP_EVENT_API 0 +#define LWIP_CALLBACK_API 1 +#define LWIP_WND_SCALE 0 +#define TCP_RCV_SCALE 0 +#define LWIP_TCP_PCB_NUM_EXT_ARGS 0 +#define LWIP_ALTCP 0 +#define LWIP_ALTCP_TLS 0 +#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE) +#define PBUF_LINK_ENCAPSULATION_HLEN 0 +#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN) +#define LWIP_PBUF_REF_T u8_t +#define LWIP_SINGLE_NETIF 0 +#define LWIP_NETIF_HOSTNAME 0 +#define LWIP_NETIF_API 0 +#define LWIP_NETIF_STATUS_CALLBACK 0 +#define LWIP_NETIF_EXT_STATUS_CALLBACK 0 +#define LWIP_NETIF_LINK_CALLBACK 0 +#define LWIP_NETIF_REMOVE_CALLBACK 0 +#define LWIP_NETIF_HWADDRHINT 0 +#define LWIP_NETIF_TX_SINGLE_PBUF 0 +#define LWIP_NUM_NETIF_CLIENT_DATA 0 +#define LWIP_HAVE_LOOPIF (LWIP_NETIF_LOOPBACK && !LWIP_SINGLE_NETIF) +#define LWIP_LOOPIF_MULTICAST 0 +#define LWIP_NETIF_LOOPBACK 0 +#define LWIP_LOOPBACK_MAX_PBUFS 0 +#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS) +/*#define TCPIP_THREAD_NAME "tcpip_thread" +#define TCPIP_THREAD_STACKSIZE 0 +#define TCPIP_THREAD_PRIO 1 +#define TCPIP_MBOX_SIZE 0 +#define LWIP_TCPIP_THREAD_ALIVE() +#define SLIPIF_THREAD_NAME "slipif_loop" +#define SLIPIF_THREAD_STACKSIZE 0 +#define SLIPIF_THREAD_PRIO 1 +#define DEFAULT_THREAD_NAME "lwIP" +#define DEFAULT_THREAD_STACKSIZE 0 +#define DEFAULT_THREAD_PRIO 1 +#define DEFAULT_RAW_RECVMBOX_SIZE 0 +#define DEFAULT_UDP_RECVMBOX_SIZE 0 +#define DEFAULT_TCP_RECVMBOX_SIZE 0 +#define DEFAULT_ACCEPTMBOX_SIZE 0*/ +#define LWIP_NETCONN 0 +#define LWIP_TCPIP_TIMEOUT 0 +#define LWIP_NETCONN_SEM_PER_THREAD 0 +#define LWIP_NETCONN_FULLDUPLEX 0 +#define LWIP_SOCKET 0 +#define LWIP_COMPAT_SOCKETS 1 /* 0..2 */ +#define LWIP_POSIX_SOCKETS_IO_NAMES 1 +#define LWIP_SOCKET_OFFSET 0 +#define LWIP_TCP_KEEPALIVE 0 +#define LWIP_SO_SNDTIMEO 0 +#define LWIP_SO_RCVTIMEO 0 +#define LWIP_SO_SNDRCVTIMEO_NONSTANDARD 0 +#define LWIP_SO_RCVBUF 0 +#define LWIP_SO_LINGER 0 +#define RECV_BUFSIZE_DEFAULT INT_MAX +#define LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT 20000 +#define SO_REUSE 0 +#define SO_REUSE_RXTOALL 0 +#define LWIP_FIONREAD_LINUXMODE 0 +#define LWIP_SOCKET_SELECT 1 +#define LWIP_SOCKET_POLL 1 +#define LWIP_STATS 1 +#define LWIP_STATS_DISPLAY 0 +#define LINK_STATS 1 +#define ETHARP_STATS (LWIP_ARP) +#define IP_STATS 1 +#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG) +#define ICMP_STATS 1 +#define IGMP_STATS (LWIP_IGMP) +#define UDP_STATS (LWIP_UDP) +#define TCP_STATS (LWIP_TCP) +#define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0)) +#define MEMP_STATS (MEMP_MEM_MALLOC == 0) +#define SYS_STATS (NO_SYS == 0) +#define IP6_STATS (LWIP_IPV6) +#define ICMP6_STATS (LWIP_IPV6 && LWIP_ICMP6) +#define IP6_FRAG_STATS (LWIP_IPV6 && (LWIP_IPV6_FRAG || LWIP_IPV6_REASS)) +#define MLD6_STATS (LWIP_IPV6 && LWIP_IPV6_MLD) +#define ND6_STATS (LWIP_IPV6) +#define MIB2_STATS 0 +#define LWIP_CHECKSUM_CTRL_PER_NETIF 0 +#define CHECKSUM_GEN_IP 1 +#define CHECKSUM_GEN_UDP 1 +#define CHECKSUM_GEN_TCP 1 +#define CHECKSUM_GEN_ICMP 1 +#define CHECKSUM_GEN_ICMP6 1 +#define CHECKSUM_CHECK_IP 1 +#define CHECKSUM_CHECK_UDP 1 +#define CHECKSUM_CHECK_TCP 1 +#define CHECKSUM_CHECK_ICMP 1 +#define CHECKSUM_CHECK_ICMP6 1 +#define LWIP_CHECKSUM_ON_COPY 0 +#define LWIP_IPV6 1 +#define IPV6_REASS_MAXAGE 60 +#define LWIP_IPV6_SCOPES (LWIP_IPV6 && !LWIP_SINGLE_NETIF) +#define LWIP_IPV6_SCOPES_DEBUG 0 +#define LWIP_IPV6_NUM_ADDRESSES 3 +#define LWIP_IPV6_FORWARD 0 +#define LWIP_IPV6_FRAG 1 +#define LWIP_IPV6_REASS (LWIP_IPV6) +#define LWIP_IPV6_SEND_ROUTER_SOLICIT 1 +#define LWIP_IPV6_AUTOCONFIG (LWIP_IPV6) +#define LWIP_IPV6_ADDRESS_LIFETIMES (LWIP_IPV6_AUTOCONFIG) +#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 1 +#define LWIP_ICMP6 (LWIP_IPV6) +#define LWIP_ICMP6_DATASIZE 8 +#define LWIP_ICMP6_HL 255 +#define LWIP_IPV6_MLD (LWIP_IPV6) +#define MEMP_NUM_MLD6_GROUP 4 +#define LWIP_ND6_QUEUEING (LWIP_IPV6) +#define MEMP_NUM_ND6_QUEUE 20 +#define LWIP_ND6_NUM_NEIGHBORS 10 +#define LWIP_ND6_NUM_DESTINATIONS 10 +#define LWIP_ND6_NUM_PREFIXES 5 +#define LWIP_ND6_NUM_ROUTERS 3 +#define LWIP_ND6_MAX_MULTICAST_SOLICIT 3 +#define LWIP_ND6_MAX_UNICAST_SOLICIT 3 +#define LWIP_ND6_MAX_ANYCAST_DELAY_TIME 1000 +#define LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT 3 +#define LWIP_ND6_REACHABLE_TIME 30000 +#define LWIP_ND6_RETRANS_TIMER 1000 +#define LWIP_ND6_DELAY_FIRST_PROBE_TIME 5000 +#define LWIP_ND6_ALLOW_RA_UPDATES 1 +#define LWIP_ND6_TCP_REACHABILITY_HINTS 1 +#define LWIP_ND6_RDNSS_MAX_DNS_SERVERS 0 +#define LWIP_IPV6_DHCP6 0 +#define LWIP_IPV6_DHCP6_STATEFUL 0 +#define LWIP_IPV6_DHCP6_STATELESS LWIP_IPV6_DHCP6 +#define LWIP_DHCP6_GET_NTP_SRV 0 +#define LWIP_DHCP6_MAX_NTP_SERVERS 1 +#define LWIP_DHCP6_MAX_DNS_SERVERS DNS_MAX_SERVERS + +/* TODO: check hooks */ + +#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL +#define LWIP_DBG_TYPES_ON LWIP_DBG_ON +#define ETHARP_DEBUG LWIP_DBG_OFF +#define NETIF_DEBUG LWIP_DBG_OFF +#define PBUF_DEBUG LWIP_DBG_OFF +#define API_LIB_DEBUG LWIP_DBG_OFF +#define API_MSG_DEBUG LWIP_DBG_OFF +#define SOCKETS_DEBUG LWIP_DBG_OFF +#define ICMP_DEBUG LWIP_DBG_OFF +#define IGMP_DEBUG LWIP_DBG_OFF +#define INET_DEBUG LWIP_DBG_OFF +#define IP_DEBUG LWIP_DBG_OFF +#define IP_REASS_DEBUG LWIP_DBG_OFF +#define RAW_DEBUG LWIP_DBG_OFF +#define MEM_DEBUG LWIP_DBG_OFF +#define MEMP_DEBUG LWIP_DBG_OFF +#define SYS_DEBUG LWIP_DBG_OFF +#define TIMERS_DEBUG LWIP_DBG_OFF +#define TCP_DEBUG LWIP_DBG_OFF +#define TCP_INPUT_DEBUG LWIP_DBG_OFF +#define TCP_FR_DEBUG LWIP_DBG_OFF +#define TCP_RTO_DEBUG LWIP_DBG_OFF +#define TCP_CWND_DEBUG LWIP_DBG_OFF +#define TCP_WND_DEBUG LWIP_DBG_OFF +#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF +#define TCP_RST_DEBUG LWIP_DBG_OFF +#define TCP_QLEN_DEBUG LWIP_DBG_OFF +#define UDP_DEBUG LWIP_DBG_OFF +#define TCPIP_DEBUG LWIP_DBG_OFF +#define SLIP_DEBUG LWIP_DBG_OFF +#define DHCP_DEBUG LWIP_DBG_OFF +#define AUTOIP_DEBUG LWIP_DBG_OFF +#define DNS_DEBUG LWIP_DBG_OFF +#define IP6_DEBUG LWIP_DBG_OFF +#define DHCP6_DEBUG LWIP_DBG_OFF +#define LWIP_TESTMODE 0 + +#define LWIP_PERF 0 diff --git a/middleware/lwip/contrib/examples/httpd/cgi_example/cgi_example.c b/middleware/lwip/contrib/examples/httpd/cgi_example/cgi_example.c new file mode 100644 index 0000000..c9c7476 --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/cgi_example/cgi_example.c @@ -0,0 +1,107 @@ +/** + * @file + * HTTPD simple CGI example + * + * This file demonstrates how to add support for basic CGI. + */ + + /* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" +#include "cgi_example.h" + +#include "lwip/apps/httpd.h" + +#include "lwip/def.h" +#include "lwip/mem.h" + +#include +#include + +/** define LWIP_HTTPD_EXAMPLE_CGI_SIMPLE to 1 to enable this cgi example */ +#ifndef LWIP_HTTPD_EXAMPLE_CGI_SIMPLE +#define LWIP_HTTPD_EXAMPLE_CGI_SIMPLE 0 +#endif + +#if LWIP_HTTPD_EXAMPLE_CGI_SIMPLE + +#if !LWIP_HTTPD_CGI +#error LWIP_HTTPD_EXAMPLE_CGI_SIMPLE needs LWIP_HTTPD_CGI +#endif + +static const char *cgi_handler_basic(int iIndex, int iNumParams, char *pcParam[], char *pcValue[]); + +static const tCGI cgi_handlers[] = { + { + "/basic_cgi", + cgi_handler_basic + }, + { + "/basic_cgi_2", + cgi_handler_basic + } +}; + +void +cgi_ex_init(void) +{ + http_set_cgi_handlers(cgi_handlers, LWIP_ARRAYSIZE(cgi_handlers)); +} + +/** This basic CGI function can parse param/value pairs and return an url that + * is sent as a response by httpd. + * + * This example function just checks that the input url has two key value + * parameter pairs: "foo=bar" and "test=123" + * If not, it returns 404 + */ +static const char * +cgi_handler_basic(int iIndex, int iNumParams, char *pcParam[], char *pcValue[]) +{ + LWIP_ASSERT("check index", iIndex < LWIP_ARRAYSIZE(cgi_handlers)); + + if (iNumParams == 2) { + if (!strcmp(pcParam[0], "foo")) { + if (!strcmp(pcValue[0], "bar")) { + if (!strcmp(pcParam[1], "test")) { + if (!strcmp(pcValue[1], "123")) { + return "/index.html"; + } + } + } + } + } + return "/404.html"; +} + +#endif /* LWIP_HTTPD_EXAMPLE_CGI_SIMPLE */ diff --git a/middleware/lwip/contrib/examples/httpd/cgi_example/cgi_example.h b/middleware/lwip/contrib/examples/httpd/cgi_example/cgi_example.h new file mode 100644 index 0000000..b655661 --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/cgi_example/cgi_example.h @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_HTTP_EXAMPLES_CGI_EXAMPLE +#define LWIP_HDR_HTTP_EXAMPLES_CGI_EXAMPLE + +void cgi_ex_init(void); + +#endif /* LWIP_HDR_HTTP_EXAMPLES_CGI_EXAMPLE */ diff --git a/middleware/lwip/contrib/examples/httpd/examples_fs/404.html b/middleware/lwip/contrib/examples/httpd/examples_fs/404.html new file mode 100644 index 0000000..40b343a --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/examples_fs/404.html @@ -0,0 +1,21 @@ + +lwIP - A Lightweight TCP/IP Stack + + + + +
+ SICS logo + +

lwIP - A Lightweight TCP/IP Stack

+

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+ + diff --git a/middleware/lwip/contrib/examples/httpd/examples_fs/img/sics.gif b/middleware/lwip/contrib/examples/httpd/examples_fs/img/sics.gif new file mode 100644 index 0000000..0a4fc7b Binary files /dev/null and b/middleware/lwip/contrib/examples/httpd/examples_fs/img/sics.gif differ diff --git a/middleware/lwip/contrib/examples/httpd/examples_fs/index.html b/middleware/lwip/contrib/examples/httpd/examples_fs/index.html new file mode 100644 index 0000000..ab575ef --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/examples_fs/index.html @@ -0,0 +1,47 @@ + +lwIP - A Lightweight TCP/IP Stack + + + + +
+ SICS logo + +

lwIP - A Lightweight TCP/IP Stack

+

+ The web page you are watching was served by a simple web + server running on top of the lightweight TCP/IP stack lwIP. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ The focus of the lwIP TCP/IP implementation is to reduce + the RAM usage while still having a full scale TCP. This + makes lwIP suitable for use in embedded systems with tens + of kilobytes of free RAM and room for around 40 kilobytes + of code ROM. +

+

+ More information about lwIP can be found at the lwIP + homepage at http://savannah.nongnu.org/projects/lwip/ + or at the lwIP wiki at http://lwip.wikia.com/. +

+ 		+   +
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+ + diff --git a/middleware/lwip/contrib/examples/httpd/examples_fs/session.html b/middleware/lwip/contrib/examples/httpd/examples_fs/session.html new file mode 100644 index 0000000..72d3bff --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/examples_fs/session.html @@ -0,0 +1,25 @@ + +lwIP - A Lightweight TCP/IP Stack + + + + + + + + +
+ SICS logo + +

lwIP - A Lightweight TCP/IP Stack

+

+ Login succeeded, session active. +

+

+ Click here to retry login. +

+ 		+   +
+ + diff --git a/middleware/lwip/contrib/examples/httpd/examples_fs/ssi.shtml b/middleware/lwip/contrib/examples/httpd/examples_fs/ssi.shtml new file mode 100644 index 0000000..153d016 --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/examples_fs/ssi.shtml @@ -0,0 +1,315 @@ + +lwIP - A Lightweight TCP/IP Stack + + + + +
+ SICS logo + +

lwIP - A Lightweight TCP/IP Stack

+

+

+ The web page you are watching was served by a simple web + server running on top of the lightweight TCP/IP stack lwIP. +

+

+ This page is here to test SSI, so here is a counter as + an example of content changing for every request: + "" +

+

+ And here is an example of a tag result buffer return in + multiple parts: "" +

+

+ To test LWIP_HTTPD_CGI_SSI, here are the CGI parameters: + +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ lwIP is an open source implementation of the TCP/IP + protocol suite that was originally written by Adam Dunkels + of the Swedish Institute of Computer Science but now is + being actively developed by a team of developers + distributed world-wide. Since it's release, lwIP has + spurred a lot of interest and has been ported to several + platforms and operating systems. lwIP can be used either + with or without an underlying OS. +

+

+ The focus of the lwIP TCP/IP implementation is to reduce + the RAM usage while still having a full scale TCP. This + makes lwIP suitable for use in embedded systems with tens + of kilobytes of free RAM and room for around 40 kilobytes + of code ROM. +

+

+ More information about lwIP can be found at the lwIP + homepage at http://savannah.nongnu.org/projects/lwip/ + or at the lwIP wiki at http://lwip.wikia.com/. +

+ 		+   +
+ + + diff --git a/middleware/lwip/contrib/examples/httpd/examples_fsdata.c b/middleware/lwip/contrib/examples/httpd/examples_fsdata.c new file mode 100644 index 0000000..7eed926 --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/examples_fsdata.c @@ -0,0 +1,1543 @@ +#include "lwip/apps/fs.h" +#include "lwip/def.h" + + +#define file_NULL (struct fsdata_file *) NULL + + +#ifndef FS_FILE_FLAGS_HEADER_INCLUDED +#define FS_FILE_FLAGS_HEADER_INCLUDED 1 +#endif +#ifndef FS_FILE_FLAGS_HEADER_PERSISTENT +#define FS_FILE_FLAGS_HEADER_PERSISTENT 0 +#endif +/* FSDATA_FILE_ALIGNMENT: 0=off, 1=by variable, 2=by include */ +#ifndef FSDATA_FILE_ALIGNMENT +#define FSDATA_FILE_ALIGNMENT 0 +#endif +#ifndef FSDATA_ALIGN_PRE +#define FSDATA_ALIGN_PRE +#endif +#ifndef FSDATA_ALIGN_POST +#define FSDATA_ALIGN_POST +#endif +#if FSDATA_FILE_ALIGNMENT==2 +#include "fsdata_alignment.h" +#endif +#if FSDATA_FILE_ALIGNMENT==1 +static const unsigned int dummy_align__img_sics_gif = 0; +#endif +static const unsigned char FSDATA_ALIGN_PRE data__img_sics_gif[] FSDATA_ALIGN_POST = { +/* /img/sics.gif (14 chars) */ +0x2f,0x69,0x6d,0x67,0x2f,0x73,0x69,0x63,0x73,0x2e,0x67,0x69,0x66,0x00,0x00,0x00, + +/* HTTP header */ +/* "HTTP/1.1 200 OK +" (17 bytes) */ +0x48,0x54,0x54,0x50,0x2f,0x31,0x2e,0x31,0x20,0x32,0x30,0x30,0x20,0x4f,0x4b,0x0d, +0x0a, +/* "Server: lwIP/2.0.3d (http://savannah.nongnu.org/projects/lwip) +" (64 bytes) */ +0x53,0x65,0x72,0x76,0x65,0x72,0x3a,0x20,0x6c,0x77,0x49,0x50,0x2f,0x32,0x2e,0x30, +0x2e,0x33,0x64,0x20,0x28,0x68,0x74,0x74,0x70,0x3a,0x2f,0x2f,0x73,0x61,0x76,0x61, +0x6e,0x6e,0x61,0x68,0x2e,0x6e,0x6f,0x6e,0x67,0x6e,0x75,0x2e,0x6f,0x72,0x67,0x2f, +0x70,0x72,0x6f,0x6a,0x65,0x63,0x74,0x73,0x2f,0x6c,0x77,0x69,0x70,0x29,0x0d,0x0a, + +/* "Content-Length: 724 +" (18+ bytes) */ +0x43,0x6f,0x6e,0x74,0x65,0x6e,0x74,0x2d,0x4c,0x65,0x6e,0x67,0x74,0x68,0x3a,0x20, +0x37,0x32,0x34,0x0d,0x0a, +/* "Connection: keep-alive +" (24 bytes) */ +0x43,0x6f,0x6e,0x6e,0x65,0x63,0x74,0x69,0x6f,0x6e,0x3a,0x20,0x6b,0x65,0x65,0x70, +0x2d,0x61,0x6c,0x69,0x76,0x65,0x0d,0x0a, +/* "Content-Type: image/gif + +" (27 bytes) */ +0x43,0x6f,0x6e,0x74,0x65,0x6e,0x74,0x2d,0x54,0x79,0x70,0x65,0x3a,0x20,0x69,0x6d, +0x61,0x67,0x65,0x2f,0x67,0x69,0x66,0x0d,0x0a,0x0d,0x0a, +/* raw file data (724 bytes) */ +0x47,0x49,0x46,0x38,0x39,0x61,0x46,0x00,0x22,0x00,0xa5,0x00,0x00,0xd9,0x2b,0x39, +0x6a,0x6a,0x6a,0xbf,0xbf,0xbf,0x93,0x93,0x93,0x0f,0x0f,0x0f,0xb0,0xb0,0xb0,0xa6, +0xa6,0xa6,0x80,0x80,0x80,0x76,0x76,0x76,0x1e,0x1e,0x1e,0x9d,0x9d,0x9d,0x2e,0x2e, +0x2e,0x49,0x49,0x49,0x54,0x54,0x54,0x8a,0x8a,0x8a,0x60,0x60,0x60,0xc6,0xa6,0x99, +0xbd,0xb5,0xb2,0xc2,0xab,0xa1,0xd9,0x41,0x40,0xd5,0x67,0x55,0xc0,0xb0,0xaa,0xd5, +0x5e,0x4e,0xd6,0x50,0x45,0xcc,0x93,0x7d,0xc8,0xa1,0x90,0xce,0x8b,0x76,0xd2,0x7b, +0x65,0xd1,0x84,0x6d,0xc9,0x99,0x86,0x3a,0x3a,0x3a,0x00,0x00,0x00,0xb8,0xb8,0xb8, +0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, +0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, +0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, +0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, +0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, +0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x2c,0x00,0x00, +0x00,0x00,0x46,0x00,0x22,0x00,0x00,0x06,0xfe,0x40,0x90,0x70,0x48,0x2c,0x1a,0x8f, +0xc8,0xa4,0x72,0xc9,0x6c,0x3a,0x9f,0xd0,0xa8,0x74,0x4a,0xad,0x5a,0xaf,0xd8,0xac, +0x76,0xa9,0x40,0x04,0xbe,0x83,0xe2,0x60,0x3c,0x50,0x20,0x0d,0x8e,0x6f,0x00,0x31, +0x28,0x1c,0x0d,0x07,0xb5,0xc3,0x60,0x75,0x24,0x3e,0xf8,0xfc,0x87,0x11,0x06,0xe9, +0x3d,0x46,0x07,0x0b,0x7a,0x7a,0x7c,0x43,0x06,0x1e,0x84,0x78,0x0b,0x07,0x6e,0x51, +0x01,0x8a,0x84,0x08,0x7e,0x79,0x80,0x87,0x89,0x91,0x7a,0x93,0x0a,0x04,0x99,0x78, +0x96,0x4f,0x03,0x9e,0x79,0x01,0x94,0x9f,0x43,0x9c,0xa3,0xa4,0x05,0x77,0xa3,0xa0, +0x4e,0x98,0x79,0x0b,0x1e,0x83,0xa4,0xa6,0x1f,0x96,0x05,0x9d,0xaa,0x78,0x01,0x07, +0x84,0x04,0x1e,0x1e,0xbb,0xb8,0x51,0x84,0x0e,0x43,0x05,0x07,0x77,0xa5,0x7f,0x42, +0xb1,0xb2,0x01,0x63,0x08,0x0d,0xbb,0x01,0x0c,0x7a,0x0d,0x44,0x0e,0xd8,0xaf,0x4c, +0x05,0x7a,0x04,0x47,0x07,0x07,0xb7,0x80,0xa2,0xe1,0x7d,0x44,0x05,0x01,0x04,0x01, +0xd0,0xea,0x87,0x93,0x4f,0xe0,0x9a,0x49,0xce,0xd8,0x79,0x04,0x66,0x20,0x15,0x10, +0x10,0x11,0x92,0x29,0x80,0xb6,0xc0,0x91,0x15,0x45,0x1e,0x90,0x19,0x71,0x46,0xa8, +0x5c,0x04,0x0e,0x00,0x22,0x4e,0xe8,0x40,0x24,0x9f,0x3e,0x04,0x06,0xa7,0x58,0xd4, +0x93,0xa0,0x1c,0x91,0x3f,0xe8,0xf0,0x88,0x03,0xb1,0x21,0xa2,0x49,0x00,0x19,0x86, +0xfc,0x52,0x44,0xe0,0x01,0x9d,0x29,0x21,0x15,0x25,0x50,0xf7,0x67,0x25,0x1e,0x06, +0xfd,0x4e,0x9a,0xb4,0x90,0xac,0x15,0xfa,0xcb,0x52,0x53,0x1e,0x8c,0xf2,0xf8,0x07, +0x92,0x2d,0x08,0x3a,0x4d,0x12,0x49,0x95,0x49,0xdb,0x14,0x04,0xc4,0x14,0x85,0x29, +0xaa,0xe7,0x01,0x08,0xa4,0x49,0x01,0x14,0x51,0xe0,0x53,0x91,0xd5,0x29,0x06,0x1a, +0x64,0x02,0xf4,0xc7,0x81,0x9e,0x05,0x20,0x22,0x64,0xa5,0x30,0xae,0xab,0x9e,0x97, +0x53,0xd8,0xb9,0xfd,0x50,0xef,0x93,0x02,0x42,0x74,0x34,0xe8,0x9c,0x20,0x21,0xc9, +0x01,0x68,0x78,0xe6,0x55,0x29,0x20,0x56,0x4f,0x4c,0x40,0x51,0x71,0x82,0xc0,0x70, +0x21,0x22,0x85,0xbe,0x4b,0x1c,0x44,0x05,0xea,0xa4,0x01,0xbf,0x22,0xb5,0xf0,0x1c, +0x06,0x51,0x38,0x8f,0xe0,0x22,0xec,0x18,0xac,0x39,0x22,0xd4,0xd6,0x93,0x44,0x01, +0x32,0x82,0xc8,0xfc,0x61,0xb3,0x01,0x45,0x0c,0x2e,0x83,0x30,0xd0,0x0e,0x17,0x24, +0x0f,0x70,0x85,0x94,0xee,0x05,0x05,0x53,0x4b,0x32,0x1b,0x3f,0x98,0xd3,0x1d,0x29, +0x81,0xb0,0xae,0x1e,0x8c,0x7e,0x68,0xe0,0x60,0x5a,0x54,0x8f,0xb0,0x78,0x69,0x73, +0x06,0xa2,0x00,0x6b,0x57,0xca,0x3d,0x11,0x50,0xbd,0x04,0x30,0x4b,0x3a,0xd4,0xab, +0x5f,0x1f,0x9b,0x3d,0x13,0x74,0x27,0x88,0x3c,0x25,0xe0,0x17,0xbe,0x7a,0x79,0x45, +0x0d,0x0c,0xb0,0x8b,0xda,0x90,0xca,0x80,0x06,0x5d,0x17,0x60,0x1c,0x22,0x4c,0xd8, +0x57,0x22,0x06,0x20,0x00,0x98,0x07,0x08,0xe4,0x56,0x80,0x80,0x1c,0xc5,0xb7,0xc5, +0x82,0x0c,0x36,0xe8,0xe0,0x83,0x10,0x46,0x28,0xe1,0x84,0x14,0x56,0x68,0xa1,0x10, +0x41,0x00,0x00,0x3b,}; + +#if FSDATA_FILE_ALIGNMENT==1 +static const unsigned int dummy_align__404_html = 1; +#endif +static const unsigned char FSDATA_ALIGN_PRE data__404_html[] FSDATA_ALIGN_POST = { +/* /404.html (10 chars) */ +0x2f,0x34,0x30,0x34,0x2e,0x68,0x74,0x6d,0x6c,0x00,0x00,0x00, + +/* HTTP header */ +/* "HTTP/1.1 404 File not found +" (29 bytes) */ +0x48,0x54,0x54,0x50,0x2f,0x31,0x2e,0x31,0x20,0x34,0x30,0x34,0x20,0x46,0x69,0x6c, +0x65,0x20,0x6e,0x6f,0x74,0x20,0x66,0x6f,0x75,0x6e,0x64,0x0d,0x0a, +/* "Server: lwIP/2.0.3d (http://savannah.nongnu.org/projects/lwip) +" (64 bytes) */ +0x53,0x65,0x72,0x76,0x65,0x72,0x3a,0x20,0x6c,0x77,0x49,0x50,0x2f,0x32,0x2e,0x30, +0x2e,0x33,0x64,0x20,0x28,0x68,0x74,0x74,0x70,0x3a,0x2f,0x2f,0x73,0x61,0x76,0x61, +0x6e,0x6e,0x61,0x68,0x2e,0x6e,0x6f,0x6e,0x67,0x6e,0x75,0x2e,0x6f,0x72,0x67,0x2f, 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struct fsdata_file file__login_html[] = { { +file__index_html, +data__login_html, +data__login_html + 12, +sizeof(data__login_html) - 12, +FS_FILE_FLAGS_HEADER_INCLUDED | FS_FILE_FLAGS_HEADER_PERSISTENT | FS_FILE_FLAGS_HEADER_HTTPVER_1_1, +}}; + +const struct fsdata_file file__loginfail_html[] = { { +file__login_html, +data__loginfail_html, +data__loginfail_html + 16, +sizeof(data__loginfail_html) - 16, +FS_FILE_FLAGS_HEADER_INCLUDED | FS_FILE_FLAGS_HEADER_PERSISTENT | FS_FILE_FLAGS_HEADER_HTTPVER_1_1, +}}; + +const struct fsdata_file file__session_html[] = { { +file__loginfail_html, +data__session_html, +data__session_html + 16, +sizeof(data__session_html) - 16, +FS_FILE_FLAGS_HEADER_INCLUDED | FS_FILE_FLAGS_HEADER_PERSISTENT | FS_FILE_FLAGS_HEADER_HTTPVER_1_1, +}}; + +const struct fsdata_file file__ssi_shtml[] = { { +file__session_html, +data__ssi_shtml, +data__ssi_shtml + 12, +sizeof(data__ssi_shtml) - 12, +FS_FILE_FLAGS_HEADER_INCLUDED | FS_FILE_FLAGS_SSI, +}}; + +#define FS_ROOT file__ssi_shtml +#define FS_NUMFILES 7 + diff --git a/middleware/lwip/contrib/examples/httpd/fs_example/fs_example.c b/middleware/lwip/contrib/examples/httpd/fs_example/fs_example.c new file mode 100644 index 0000000..92c6435 --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/fs_example/fs_example.c @@ -0,0 +1,321 @@ +/** + * @file + * HTTPD custom file system example + * + * This file demonstrates how to add support for an external file system to httpd. + * It provides access to the specified root directory and uses stdio.h file functions + * to read files. + * + * ATTENTION: This implementation is *not* secure: no checks are added to ensure + * files are only read below the specified root directory! + */ + + /* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" +#include "fs_example.h" + +#include "lwip/apps/fs.h" +#include "lwip/def.h" +#include "lwip/mem.h" + +#include +#include + +/** define LWIP_HTTPD_EXAMPLE_CUSTOMFILES to 1 to enable this file system */ +#ifndef LWIP_HTTPD_EXAMPLE_CUSTOMFILES +#define LWIP_HTTPD_EXAMPLE_CUSTOMFILES 0 +#endif + +/** define LWIP_HTTPD_EXAMPLE_CUSTOMFILES_DELAYED to 1 to delay open and read + * as if e.g. reading from external SPI flash */ +#ifndef LWIP_HTTPD_EXAMPLE_CUSTOMFILES_DELAYED +#define LWIP_HTTPD_EXAMPLE_CUSTOMFILES_DELAYED 1 +#endif + +/** define LWIP_HTTPD_EXAMPLE_CUSTOMFILES_LIMIT_READ to the number of bytes + * to read to emulate limited transfer buffers and don't read whole files in + * one chunk. + * WARNING: lowering this slows down the connection! + */ +#ifndef LWIP_HTTPD_EXAMPLE_CUSTOMFILES_LIMIT_READ +#define LWIP_HTTPD_EXAMPLE_CUSTOMFILES_LIMIT_READ 0 +#endif + +#if LWIP_HTTPD_EXAMPLE_CUSTOMFILES + +#if !LWIP_HTTPD_CUSTOM_FILES +#error This needs LWIP_HTTPD_CUSTOM_FILES +#endif +#if !LWIP_HTTPD_DYNAMIC_HEADERS +#error This needs LWIP_HTTPD_DYNAMIC_HEADERS +#endif +#if !LWIP_HTTPD_DYNAMIC_FILE_READ +#error This wants to demonstrate read-after-open, so LWIP_HTTPD_DYNAMIC_FILE_READ is required! +#endif +#if !LWIP_HTTPD_FS_ASYNC_READ +#error This needs LWIP_HTTPD_FS_ASYNC_READ +#endif + +#if LWIP_HTTPD_EXAMPLE_CUSTOMFILES_DELAYED +#include "lwip/tcpip.h" +#endif + +struct fs_custom_data { + FILE *f; +#if LWIP_HTTPD_EXAMPLE_CUSTOMFILES_DELAYED + int delay_read; + fs_wait_cb callback_fn; + void *callback_arg; +#endif +}; + +const char* fs_ex_root_dir; + +void +fs_ex_init(const char *httpd_root_dir) +{ + fs_ex_root_dir = strdup(httpd_root_dir); +} + +#if LWIP_HTTPD_CUSTOM_FILES +int +fs_open_custom(struct fs_file *file, const char *name) +{ + char full_filename[256]; + FILE *f; + + snprintf(full_filename, 255, "%s%s", fs_ex_root_dir, name); + full_filename[255] = 0; + + f = fopen(full_filename, "rb"); + if (f != NULL) { + if (!fseek(f, 0, SEEK_END)) { + int len = (int)ftell(f); + if(!fseek(f, 0, SEEK_SET)) { + struct fs_custom_data *data = (struct fs_custom_data *)mem_malloc(sizeof(struct fs_custom_data)); + LWIP_ASSERT("out of memory?", data != NULL); + memset(file, 0, sizeof(struct fs_file)); +#if LWIP_HTTPD_EXAMPLE_CUSTOMFILES_DELAYED + file->len = 0; /* read size delayed */ + data->delay_read = 3; + LWIP_UNUSED_ARG(len); +#else + file->len = len; +#endif + file->flags = FS_FILE_FLAGS_HEADER_PERSISTENT; + data->f = f; + file->pextension = data; + return 1; + } + } + fclose(f); + } + return 0; +} + +void +fs_close_custom(struct fs_file *file) +{ + if (file && file->pextension) { + struct fs_custom_data *data = (struct fs_custom_data *)file->pextension; + if (data->f != NULL) { + fclose(data->f); + data->f = NULL; + } + mem_free(data); + } +} + +#if LWIP_HTTPD_FS_ASYNC_READ +u8_t +fs_canread_custom(struct fs_file *file) +{ + /* This function is only necessary for asynchronous I/O: + If reading would block, return 0 and implement fs_wait_read_custom() to call the + supplied callback if reading works. */ +#if LWIP_HTTPD_EXAMPLE_CUSTOMFILES_DELAYED + struct fs_custom_data *data; + LWIP_ASSERT("file != NULL", file != NULL); + data = (struct fs_custom_data *)file->pextension; + if (data == NULL) { + /* file transfer has been completed already */ + LWIP_ASSERT("transfer complete", file->index == file->len); + return 1; + } + LWIP_ASSERT("data != NULL", data != NULL); + /* This just simulates a simple delay. This delay would normally come e.g. from SPI transfer */ + if (data->delay_read == 3) { + /* delayed file size mode */ + data->delay_read = 1; + LWIP_ASSERT("", file->len == 0); + if (!fseek(data->f, 0, SEEK_END)) { + int len = (int)ftell(data->f); + if(!fseek(data->f, 0, SEEK_SET)) { + file->len = len; /* read size delayed */ + data->delay_read = 1; + return 0; + } + } + /* if we come here, something is wrong with the file */ + LWIP_ASSERT("file error", 0); + } + if (data->delay_read == 1) { + /* tell read function to delay further */ + } +#endif + LWIP_UNUSED_ARG(file); + return 1; +} + +#if LWIP_HTTPD_EXAMPLE_CUSTOMFILES_DELAYED +static void +fs_example_read_cb(void *arg) +{ + struct fs_custom_data *data = (struct fs_custom_data *)arg; + fs_wait_cb callback_fn = data->callback_fn; + void *callback_arg = data->callback_arg; + data->callback_fn = NULL; + data->callback_arg = NULL; + + LWIP_ASSERT("no callback_fn", callback_fn != NULL); + + callback_fn(callback_arg); +} +#endif + +u8_t +fs_wait_read_custom(struct fs_file *file, fs_wait_cb callback_fn, void *callback_arg) +{ +#if LWIP_HTTPD_EXAMPLE_CUSTOMFILES_DELAYED + err_t err; + struct fs_custom_data *data = (struct fs_custom_data *)file->pextension; + LWIP_ASSERT("data not set", data != NULL); + data->callback_fn = callback_fn; + data->callback_arg = callback_arg; + err = tcpip_try_callback(fs_example_read_cb, data); + LWIP_ASSERT("out of queue elements?", err == ERR_OK); + LWIP_UNUSED_ARG(err); +#else + LWIP_ASSERT("not implemented in this example configuration", 0); +#endif + LWIP_UNUSED_ARG(file); + LWIP_UNUSED_ARG(callback_fn); + LWIP_UNUSED_ARG(callback_arg); + /* Return + - 1 if ready to read (at least one byte) + - 0 if reading should be delayed (call 'tcpip_callback(callback_fn, callback_arg)' when ready) */ + return 1; +} + +int +fs_read_async_custom(struct fs_file *file, char *buffer, int count, fs_wait_cb callback_fn, void *callback_arg) +{ + struct fs_custom_data *data = (struct fs_custom_data *)file->pextension; + FILE *f; + int len; + int read_count = count; + LWIP_ASSERT("data not set", data != NULL); + +#if LWIP_HTTPD_EXAMPLE_CUSTOMFILES_DELAYED + /* This just simulates a delay. This delay would normally come e.g. from SPI transfer */ + LWIP_ASSERT("invalid state", data->delay_read >= 0 && data->delay_read <= 2); + if (data->delay_read == 2) { + /* no delay next time */ + data->delay_read = 0; + return FS_READ_DELAYED; + } else if (data->delay_read == 1) { + err_t err; + /* execute requested delay */ + data->delay_read = 2; + LWIP_ASSERT("duplicate callback request", data->callback_fn == NULL); + data->callback_fn = callback_fn; + data->callback_arg = callback_arg; + err = tcpip_try_callback(fs_example_read_cb, data); + LWIP_ASSERT("out of queue elements?", err == ERR_OK); + LWIP_UNUSED_ARG(err); + return FS_READ_DELAYED; + } + /* execute this read but delay the next one */ + data->delay_read = 1; +#endif + +#if LWIP_HTTPD_EXAMPLE_CUSTOMFILES_LIMIT_READ + read_count = LWIP_MIN(read_count, LWIP_HTTPD_EXAMPLE_CUSTOMFILES_LIMIT_READ); +#endif + + f = data->f; + len = (int)fread(buffer, 1, read_count, f); + + LWIP_UNUSED_ARG(callback_fn); + LWIP_UNUSED_ARG(callback_arg); + + file->index += len; + + /* Return + - FS_READ_EOF if all bytes have been read + - FS_READ_DELAYED if reading is delayed (call 'tcpip_callback(callback_fn, callback_arg)' when done) */ + if (len == 0) { + /* all bytes read already */ + return FS_READ_EOF; + } + return len; +} + +#else /* LWIP_HTTPD_FS_ASYNC_READ */ +int +fs_read_custom(struct fs_file *file, char *buffer, int count) +{ + struct fs_custom_data *data = (struct fs_custom_data *)file->pextension; + FILE *f; + int len; + int read_count = count; + LWIP_ASSERT("data not set", data != NULL); + +#if LWIP_HTTPD_EXAMPLE_CUSTOMFILES_LIMIT_READ + read_count = LWIP_MIN(read_count, LWIP_HTTPD_EXAMPLE_CUSTOMFILES_LIMIT_READ); +#endif + + f = data->f; + len = (int)fread(buffer, 1, read_count, f); + + file->index += len; + + /* Return FS_READ_EOF if all bytes have been read */ + return len; +} + +#endif /* LWIP_HTTPD_FS_ASYNC_READ */ +#endif /* LWIP_HTTPD_CUSTOM_FILES */ + +#endif /* LWIP_HTTPD_EXAMPLE_CUSTOMFILES */ diff --git a/middleware/lwip/contrib/examples/httpd/fs_example/fs_example.h b/middleware/lwip/contrib/examples/httpd/fs_example/fs_example.h new file mode 100644 index 0000000..b399e4d --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/fs_example/fs_example.h @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_HTTP_EXAMPLES_FS_EXAMPLE +#define LWIP_HDR_HTTP_EXAMPLES_FS_EXAMPLE + +void fs_ex_init(const char *httpd_root_dir); + +#endif /* LWIP_HDR_HTTP_EXAMPLES_FS_EXAMPLE */ diff --git a/middleware/lwip/contrib/examples/httpd/genfiles_example/genfiles_example.c b/middleware/lwip/contrib/examples/httpd/genfiles_example/genfiles_example.c new file mode 100644 index 0000000..95e5bdb --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/genfiles_example/genfiles_example.c @@ -0,0 +1,183 @@ +/** + * @file + * HTTPD custom file system example for runtime generated files + * + * This file demonstrates how to add support for generated files to httpd. + */ + + /* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" +#include "genfiles_example.h" + +#include "lwip/apps/fs.h" +#include "lwip/def.h" +#include "lwip/mem.h" + +#include +#include + +/** define LWIP_HTTPD_EXAMPLE_GENERATEDFILES to 1 to enable this file system */ +#ifndef LWIP_HTTPD_EXAMPLE_GENERATEDFILES +#define LWIP_HTTPD_EXAMPLE_GENERATEDFILES 0 +#endif + +#if LWIP_HTTPD_EXAMPLE_GENERATEDFILES + +#if !LWIP_HTTPD_CUSTOM_FILES +#error This needs LWIP_HTTPD_CUSTOM_FILES +#endif +#if !LWIP_HTTPD_DYNAMIC_HEADERS +#error This needs LWIP_HTTPD_DYNAMIC_HEADERS +#endif + +/* This is the page we send. It's not generated, as you see. + * Generating custom things instead of memcpy is left to your imagination :-) + */ +const char generated_html[] = +"\n" +"lwIP - A Lightweight TCP/IP Stack\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +"
\n" +" \"SICS\n" +" \n" +"

lwIP - A Lightweight TCP/IP Stack

\n" +"

Generated page

\n" +"

This page might be generated in-memory at runtime

\n" +" 		\n" +"  \n" +"
\n" +" \n" +""; + + +void +genfiles_ex_init(void) +{ + /* nothing to do here yet */ +} + +int +fs_open_custom(struct fs_file *file, const char *name) +{ + /* this example only provides one file */ + if (!strcmp(name, "/generated.html")) { + /* initialize fs_file correctly */ + memset(file, 0, sizeof(struct fs_file)); + file->pextension = mem_malloc(sizeof(generated_html)); + if (file->pextension != NULL) { + /* instead of doing memcpy, you would generate e.g. a JSON here */ + memcpy(file->pextension, generated_html, sizeof(generated_html)); + file->data = (const char *)file->pextension; + file->len = sizeof(generated_html) - 1; /* don't send the trailing 0 */ + file->index = file->len; + /* allow persisteng connections */ + file->flags = FS_FILE_FLAGS_HEADER_PERSISTENT; + return 1; + } + } + return 0; +} + +void +fs_close_custom(struct fs_file *file) +{ + if (file && file->pextension) { + mem_free(file->pextension); + file->pextension = NULL; + } +} + +#if LWIP_HTTPD_FS_ASYNC_READ +u8_t +fs_canread_custom(struct fs_file *file) +{ + LWIP_UNUSED_ARG(file); + /* This example does not use delayed/async reading */ + return 1; +} + +u8_t +fs_wait_read_custom(struct fs_file *file, fs_wait_cb callback_fn, void *callback_arg) +{ + LWIP_ASSERT("not implemented in this example configuration", 0); + LWIP_UNUSED_ARG(file); + LWIP_UNUSED_ARG(callback_fn); + LWIP_UNUSED_ARG(callback_arg); + /* Return + - 1 if ready to read (at least one byte) + - 0 if reading should be delayed (call 'tcpip_callback(callback_fn, callback_arg)' when ready) */ + return 1; +} + +int +fs_read_async_custom(struct fs_file *file, char *buffer, int count, fs_wait_cb callback_fn, void *callback_arg) +{ + LWIP_ASSERT("not implemented in this example configuration", 0); + LWIP_UNUSED_ARG(file); + LWIP_UNUSED_ARG(buffer); + LWIP_UNUSED_ARG(count); + LWIP_UNUSED_ARG(callback_fn); + LWIP_UNUSED_ARG(callback_arg); + /* Return + - FS_READ_EOF if all bytes have been read + - FS_READ_DELAYED if reading is delayed (call 'tcpip_callback(callback_fn, callback_arg)' when done) */ + /* all bytes read already */ + return FS_READ_EOF; +} + +#else /* LWIP_HTTPD_FS_ASYNC_READ */ +int +fs_read_custom(struct fs_file *file, char *buffer, int count) +{ + LWIP_ASSERT("not implemented in this example configuration", 0); + LWIP_UNUSED_ARG(file); + LWIP_UNUSED_ARG(buffer); + LWIP_UNUSED_ARG(count); + /* Return + - FS_READ_EOF if all bytes have been read + - FS_READ_DELAYED if reading is delayed (call 'tcpip_callback(callback_fn, callback_arg)' when done) */ + /* all bytes read already */ + return FS_READ_EOF; +} + +#endif /* LWIP_HTTPD_FS_ASYNC_READ */ + +#endif /* LWIP_HTTPD_EXAMPLE_GENERATEDFILES */ diff --git a/middleware/lwip/contrib/examples/httpd/genfiles_example/genfiles_example.h b/middleware/lwip/contrib/examples/httpd/genfiles_example/genfiles_example.h new file mode 100644 index 0000000..dd9731e --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/genfiles_example/genfiles_example.h @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_HTTP_EXAMPLES_GENFILES_EXAMPLE +#define LWIP_HDR_HTTP_EXAMPLES_GENFILES_EXAMPLE + +void genfiles_ex_init(void); + +#endif /* LWIP_HDR_HTTP_EXAMPLES_GENFILES_EXAMPLE */ diff --git a/middleware/lwip/contrib/examples/httpd/https_example/https_example.c b/middleware/lwip/contrib/examples/httpd/https_example/https_example.c new file mode 100644 index 0000000..7619896 --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/https_example/https_example.c @@ -0,0 +1,144 @@ +/** + * @file + * HTTPD https example + * + * This file demonstrates how to initialize httpd for https. + * To do this, it needs 2 files: + * - server certificate + * - server private key + * + * In addition to that, watch out for resource shortage. You'll need plenty of + * heap (start with MEM_SIZE >= 200 KByte or monitor its err counters) and be + * sure to at least set the following settings high enough (monitor + * lwip_stats for an idea of what's needed): + * - MEMP_NUM_TCP_PCB/MEMP_NUM_ALTCP_PCB + * - MEMP_NUM_TCPIP_MSG_INPKT + * - MEMP_NUM_TCP_SEG + */ + + /* + * Copyright (c) 2017-2019 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" +#include "https_example.h" + +#include "lwip/altcp_tls.h" +#include "lwip/apps/httpd.h" + +#include +#include +#include + +/** define LWIP_HTTPD_EXAMPLE_HTTPS to 1 to enable this file system */ +#ifndef LWIP_HTTPD_EXAMPLE_HTTPS +#define LWIP_HTTPD_EXAMPLE_HTTPS 0 +#endif + +#if LWIP_HTTPD_EXAMPLE_HTTPS && LWIP_ALTCP_TLS + +#ifndef LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE +#error "define LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE to the created server private key" +#endif + +/* If the key file is password-protected, define LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE_PASS */ +#ifdef LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE_PASS +#ifndef LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE_PASS_LEN +#define LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE_PASS_LEN strlen(LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE_PASS) +#endif +#else +#define LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE_PASS NULL +#define LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE_PASS_LEN 0 +#endif + +#ifndef LWIP_HTTPD_EXAMPLE_HTTPS_CERT_FILE +#error "define LWIP_HTTPD_EXAMPLE_HTTPS_CERT_FILE to the created server certificate" +#endif + +static u8_t *read_file(const char *filename, size_t *file_size) +{ + u8_t *buf; + long fsize; + FILE *f = fopen(filename, "rb"); + if (!f) { + return NULL; + } + fseek(f, 0, SEEK_END); + fsize = ftell(f); + fseek(f, 0, SEEK_SET); + + buf = (u8_t *)malloc(fsize + 1); + if (!buf) { + fclose(f); + return NULL; + } + fread(buf, 1, fsize, f); + fclose(f); + + buf[fsize] = 0; + if (file_size) { + /* Note: the '+ 1' is required for mbedTLS to correctly parse the buffer */ + *file_size = (size_t)(fsize + 1); + } + return buf; +} + +/** This function loads a server certificate and private key as x509 from disk. + * For information how to create such files, see mbedTLS tutorial ("How to + * generate a self-signed certificate") or OpenSSL documentation ("How to + * generate a self-signed certificate and private key using OpenSSL"), e.g. + * 'openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout privateKey.key -out certificate.crt' + * Copy the resulting files and define the path to them + */ +void +https_ex_init(void) +{ + struct altcp_tls_config *conf; + u8_t *privkey, *cert; + size_t privkey_size, cert_size; + + privkey = read_file(LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE, &privkey_size); + LWIP_ASSERT("Failed to open https server private key", privkey != NULL); + cert = read_file(LWIP_HTTPD_EXAMPLE_HTTPS_CERT_FILE, &cert_size); + LWIP_ASSERT("Failed to open https server certificate", cert != NULL); + + conf = altcp_tls_create_config_server_privkey_cert(privkey, privkey_size, + LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE_PASS, LWIP_HTTPD_EXAMPLE_HTTPS_KEY_FILE_PASS_LEN, cert, cert_size); + LWIP_ASSERT("Failed to create https server config", conf != NULL); + + httpd_inits(conf); + + /* secure erase should be done in production environment */ + free(privkey); + free(cert); +} + +#endif /* LWIP_HTTPD_EXAMPLE_HTTPS */ diff --git a/middleware/lwip/contrib/examples/httpd/https_example/https_example.h b/middleware/lwip/contrib/examples/httpd/https_example/https_example.h new file mode 100644 index 0000000..c1525e6 --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/https_example/https_example.h @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_HTTP_EXAMPLES_HTTPS_EXAMPLE +#define LWIP_HDR_HTTP_EXAMPLES_HTTPS_EXAMPLE + +void https_ex_init(void); + +#endif /* LWIP_HDR_HTTP_EXAMPLES_HTTPS_EXAMPLE */ diff --git a/middleware/lwip/contrib/examples/httpd/post_example/post_example.c b/middleware/lwip/contrib/examples/httpd/post_example/post_example.c new file mode 100644 index 0000000..f4e4369 --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/post_example/post_example.c @@ -0,0 +1,167 @@ +/** + * @file + * HTTPD example for simple POST + */ + + /* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" + +#include "lwip/apps/httpd.h" +#include "lwip/def.h" +#include "lwip/mem.h" + +#include +#include + +/** define LWIP_HTTPD_EXAMPLE_GENERATEDFILES to 1 to enable this file system */ +#ifndef LWIP_HTTPD_EXAMPLE_SIMPLEPOST +#define LWIP_HTTPD_EXAMPLE_SIMPLEPOST 0 +#endif + +#if LWIP_HTTPD_EXAMPLE_SIMPLEPOST + +#if !LWIP_HTTPD_SUPPORT_POST +#error This needs LWIP_HTTPD_SUPPORT_POST +#endif + +#define USER_PASS_BUFSIZE 16 + +static void *current_connection; +static void *valid_connection; +static char last_user[USER_PASS_BUFSIZE]; + +err_t +httpd_post_begin(void *connection, const char *uri, const char *http_request, + u16_t http_request_len, int content_len, char *response_uri, + u16_t response_uri_len, u8_t *post_auto_wnd) +{ + LWIP_UNUSED_ARG(connection); + LWIP_UNUSED_ARG(http_request); + LWIP_UNUSED_ARG(http_request_len); + LWIP_UNUSED_ARG(content_len); + LWIP_UNUSED_ARG(post_auto_wnd); + if (!memcmp(uri, "/login.cgi", 11)) { + if (current_connection != connection) { + current_connection = connection; + valid_connection = NULL; + /* default page is "login failed" */ + snprintf(response_uri, response_uri_len, "/loginfail.html"); + /* e.g. for large uploads to slow flash over a fast connection, you should + manually update the rx window. That way, a sender can only send a full + tcp window at a time. If this is required, set 'post_aut_wnd' to 0. + We do not need to throttle upload speed here, so: */ + *post_auto_wnd = 1; + return ERR_OK; + } + } + return ERR_VAL; +} + +err_t +httpd_post_receive_data(void *connection, struct pbuf *p) +{ + err_t ret; + + LWIP_ASSERT("NULL pbuf", p != NULL); + + if (current_connection == connection) { + u16_t token_user = pbuf_memfind(p, "user=", 5, 0); + u16_t token_pass = pbuf_memfind(p, "pass=", 5, 0); + if ((token_user != 0xFFFF) && (token_pass != 0xFFFF)) { + u16_t value_user = token_user + 5; + u16_t value_pass = token_pass + 5; + u16_t len_user = 0; + u16_t len_pass = 0; + u16_t tmp; + /* find user len */ + tmp = pbuf_memfind(p, "&", 1, value_user); + if (tmp != 0xFFFF) { + len_user = tmp - value_user; + } else { + len_user = p->tot_len - value_user; + } + /* find pass len */ + tmp = pbuf_memfind(p, "&", 1, value_pass); + if (tmp != 0xFFFF) { + len_pass = tmp - value_pass; + } else { + len_pass = p->tot_len - value_pass; + } + if ((len_user > 0) && (len_user < USER_PASS_BUFSIZE) && + (len_pass > 0) && (len_pass < USER_PASS_BUFSIZE)) { + /* provide contiguous storage if p is a chained pbuf */ + char buf_user[USER_PASS_BUFSIZE]; + char buf_pass[USER_PASS_BUFSIZE]; + char *user = (char *)pbuf_get_contiguous(p, buf_user, sizeof(buf_user), len_user, value_user); + char *pass = (char *)pbuf_get_contiguous(p, buf_pass, sizeof(buf_pass), len_pass, value_pass); + if (user && pass) { + user[len_user] = 0; + pass[len_pass] = 0; + if (!strcmp(user, "lwip") && !strcmp(pass, "post")) { + /* user and password are correct, create a "session" */ + valid_connection = connection; + memcpy(last_user, user, sizeof(last_user)); + } + } + } + } + /* not returning ERR_OK aborts the connection, so return ERR_OK unless the + connection is unknown */ + ret = ERR_OK; + } else { + ret = ERR_VAL; + } + + /* this function must ALWAYS free the pbuf it is passed or it will leak memory */ + pbuf_free(p); + + return ret; +} + +void +httpd_post_finished(void *connection, char *response_uri, u16_t response_uri_len) +{ + /* default page is "login failed" */ + snprintf(response_uri, response_uri_len, "/loginfail.html"); + if (current_connection == connection) { + if (valid_connection == connection) { + /* login succeeded */ + snprintf(response_uri, response_uri_len, "/session.html"); + } + current_connection = NULL; + valid_connection = NULL; + } +} + +#endif /* LWIP_HTTPD_EXAMPLE_SIMPLEPOST*/ diff --git a/middleware/lwip/contrib/examples/httpd/ssi_example/ssi_example.c b/middleware/lwip/contrib/examples/httpd/ssi_example/ssi_example.c new file mode 100644 index 0000000..2024e2e --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/ssi_example/ssi_example.c @@ -0,0 +1,264 @@ +/** + * @file + * HTTPD simple SSI example + * + * This file demonstrates how to add support for SSI. + * It does this in a very simple way by providing the three tags 'HelloWorld' + * 'counter', and 'MultiPart'. + * + * This file also demonstrates how to integrate CGI with SSI. + */ + + /* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" +#include "ssi_example.h" + +#include "lwip/apps/httpd.h" + +#include "lwip/def.h" +#include "lwip/mem.h" + +#include +#include + +/** define LWIP_HTTPD_EXAMPLE_SSI_SIMPLE to 1 to enable this ssi example*/ +#ifndef LWIP_HTTPD_EXAMPLE_SSI_SIMPLE +#define LWIP_HTTPD_EXAMPLE_SSI_SIMPLE 0 +#endif + +/** define LWIP_HTTPD_EXAMPLE_SSI_SIMPLE_CGI_INTEGRATION to 1 to show how to + * integrate CGI into SSI (LWIP_HTTPD_CGI_SSI) */ +#ifndef LWIP_HTTPD_EXAMPLE_SSI_SIMPLE_CGI_INTEGRATION +#define LWIP_HTTPD_EXAMPLE_SSI_SIMPLE_CGI_INTEGRATION 0 +#endif + +#if LWIP_HTTPD_EXAMPLE_SSI_SIMPLE + +#if LWIP_HTTPD_EXAMPLE_SSI_SIMPLE_CGI_INTEGRATION +#if !LWIP_HTTPD_FILE_STATE +#error LWIP_HTTPD_EXAMPLE_SSI_SIMPLE_CGI_INTEGRATION needs LWIP_HTTPD_FILE_STATE +#endif +#if !LWIP_HTTPD_CGI_SSI +#error LWIP_HTTPD_EXAMPLE_SSI_SIMPLE_CGI_INTEGRATION needs LWIP_HTTPD_CGI_SSI +#endif + +#define MAX_CGI_LEN 16 +#endif + +const char * ssi_example_tags[] = { + "HellWorl", + "counter", + "MultPart" +#if LWIP_HTTPD_EXAMPLE_SSI_SIMPLE_CGI_INTEGRATION + ,"CgiParam" +#endif +}; + +u16_t ssi_example_ssi_handler( +#if LWIP_HTTPD_SSI_RAW + const char* ssi_tag_name, +#else /* LWIP_HTTPD_SSI_RAW */ + int iIndex, +#endif /* LWIP_HTTPD_SSI_RAW */ + char *pcInsert, int iInsertLen +#if LWIP_HTTPD_SSI_MULTIPART + , u16_t current_tag_part, u16_t *next_tag_part +#endif /* LWIP_HTTPD_SSI_MULTIPART */ +#if defined(LWIP_HTTPD_FILE_STATE) && LWIP_HTTPD_FILE_STATE + , void *connection_state +#endif /* LWIP_HTTPD_FILE_STATE */ + ) +{ + size_t printed; +#if LWIP_HTTPD_SSI_RAW + /* a real application could use if(!strcmp) blocks here, but we want to keep + the differences between configurations small, so translate string to index here */ + int iIndex; + for (iIndex = 0; iIndex < LWIP_ARRAYSIZE(ssi_example_tags); iIndex++) { + if(!strcmp(ssi_tag_name, ssi_example_tags[iIndex])) { + break; + } + } +#endif +#if defined(LWIP_HTTPD_FILE_STATE) && LWIP_HTTPD_FILE_STATE + LWIP_UNUSED_ARG(connection_state); +#endif + + switch (iIndex) { + case 0: /* "HelloWorld" */ + printed = snprintf(pcInsert, iInsertLen, "Hello World!"); + break; + case 1: /* "counter" */ + { + static int counter; + counter++; + printed = snprintf(pcInsert, iInsertLen, "%d", counter); + } + break; + case 2: /* "MultPart" */ +#if LWIP_HTTPD_SSI_MULTIPART + switch (current_tag_part) { + case 0: + printed = snprintf(pcInsert, iInsertLen, "part0"); + *next_tag_part = 1; + break; + case 1: + printed = snprintf(pcInsert, iInsertLen, "part1"); + *next_tag_part = 2; + break; + case 2: + printed = snprintf(pcInsert, iInsertLen, "part2"); + break; + default: + printed = snprintf(pcInsert, iInsertLen, "unhandled part: %d", (int)current_tag_part); + break; + } +#else + printed = snprintf(pcInsert, iInsertLen, "LWIP_HTTPD_SSI_MULTIPART disabled"); +#endif + break; +#if LWIP_HTTPD_EXAMPLE_SSI_SIMPLE_CGI_INTEGRATION + case 3: + if (connection_state) { + char *params = (char *)connection_state; + if (*params) { + printed = snprintf(pcInsert, iInsertLen, "%s", (char *)params); + } else { + printed = snprintf(pcInsert, iInsertLen, "none"); + } + } else { + printed = snprintf(pcInsert, iInsertLen, "NULL"); + } + break; +#endif + default: /* unknown tag */ + printed = 0; + break; + } + LWIP_ASSERT("sane length", printed <= 0xFFFF); + return (u16_t)printed; +} + +void +ssi_ex_init(void) +{ + int i; + for (i = 0; i < LWIP_ARRAYSIZE(ssi_example_tags); i++) { + LWIP_ASSERT("tag too long for LWIP_HTTPD_MAX_TAG_NAME_LEN", + strlen(ssi_example_tags[i]) <= LWIP_HTTPD_MAX_TAG_NAME_LEN); + } + + http_set_ssi_handler(ssi_example_ssi_handler, +#if LWIP_HTTPD_SSI_RAW + NULL, 0 +#else + ssi_example_tags, LWIP_ARRAYSIZE(ssi_example_tags) +#endif + ); +} + +#if LWIP_HTTPD_EXAMPLE_SSI_SIMPLE_CGI_INTEGRATION +void * +fs_state_init(struct fs_file *file, const char *name) +{ + char *ret; + LWIP_UNUSED_ARG(file); + LWIP_UNUSED_ARG(name); + ret = (char *)mem_malloc(MAX_CGI_LEN); + if (ret) { + *ret = 0; + } + return ret; +} + +void +fs_state_free(struct fs_file *file, void *state) +{ + LWIP_UNUSED_ARG(file); + if (state != NULL) { + mem_free(state); + } +} + +void +httpd_cgi_handler(struct fs_file *file, const char* uri, int iNumParams, + char **pcParam, char **pcValue +#if defined(LWIP_HTTPD_FILE_STATE) && LWIP_HTTPD_FILE_STATE + , void *connection_state +#endif /* LWIP_HTTPD_FILE_STATE */ + ) +{ + LWIP_UNUSED_ARG(file); + LWIP_UNUSED_ARG(uri); + if (connection_state != NULL) { + char *start = (char *)connection_state; + char *end = start + MAX_CGI_LEN; + int i; + memset(start, 0, MAX_CGI_LEN); + /* print a string of the arguments: */ + for (i = 0; i < iNumParams; i++) { + size_t len; + len = end - start; + if (len) { + size_t inlen = strlen(pcParam[i]); + size_t copylen = LWIP_MIN(inlen, len); + memcpy(start, pcParam[i], copylen); + start += copylen; + len -= copylen; + } + if (len) { + *start = '='; + start++; + len--; + } + if (len) { + size_t inlen = strlen(pcValue[i]); + size_t copylen = LWIP_MIN(inlen, len); + memcpy(start, pcValue[i], copylen); + start += copylen; + len -= copylen; + } + if (len) { + *start = ';'; + len--; + } + /* ensure NULL termination */ + end--; + *end = 0; + } + } +} +#endif /* LWIP_HTTPD_EXAMPLE_SSI_SIMPLE_CGI_INTEGRATION */ + +#endif /* LWIP_HTTPD_EXAMPLE_SSI_SIMPLE */ diff --git a/middleware/lwip/contrib/examples/httpd/ssi_example/ssi_example.h b/middleware/lwip/contrib/examples/httpd/ssi_example/ssi_example.h new file mode 100644 index 0000000..b7ec298 --- /dev/null +++ b/middleware/lwip/contrib/examples/httpd/ssi_example/ssi_example.h @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_HTTP_EXAMPLES_SSI_EXAMPLE +#define LWIP_HDR_HTTP_EXAMPLES_SSI_EXAMPLE + +void ssi_ex_init(void); + +#endif /* LWIP_HDR_HTTP_EXAMPLES_SSI_EXAMPLE */ diff --git a/middleware/lwip/contrib/examples/lwiperf/lwiperf_example.c b/middleware/lwip/contrib/examples/lwiperf/lwiperf_example.c new file mode 100644 index 0000000..a33bc6f --- /dev/null +++ b/middleware/lwip/contrib/examples/lwiperf/lwiperf_example.c @@ -0,0 +1,50 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#include "lwip/apps/lwiperf.h" +#include "lwiperf_example.h" + +static void +lwiperf_report(void *arg, enum lwiperf_report_type report_type, + const ip_addr_t* local_addr, u16_t local_port, const ip_addr_t* remote_addr, u16_t remote_port, + u32_t bytes_transferred, u32_t ms_duration, u32_t bandwidth_kbitpsec) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(local_addr); + LWIP_UNUSED_ARG(local_port); + + LWIP_PLATFORM_DIAG(("IPERF report: type=%d, remote: %s:%d, total bytes: %"U32_F", duration in ms: %"U32_F", kbits/s: %"U32_F"\n", + (int)report_type, ipaddr_ntoa(remote_addr), (int)remote_port, bytes_transferred, ms_duration, bandwidth_kbitpsec)); +} + +void +lwiperf_example_init(void) +{ + lwiperf_start_tcp_server_default(lwiperf_report, NULL); +} diff --git a/middleware/lwip/contrib/examples/lwiperf/lwiperf_example.h b/middleware/lwip/contrib/examples/lwiperf/lwiperf_example.h new file mode 100644 index 0000000..d7b35c8 --- /dev/null +++ b/middleware/lwip/contrib/examples/lwiperf/lwiperf_example.h @@ -0,0 +1,43 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#ifndef LWIPERF_EXAMPLE_H +#define LWIPERF_EXAMPLE_H + +#ifdef __cplusplus +extern "C" { +#endif + +void lwiperf_example_init(void); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIPERF_EXAMPLE_H */ diff --git a/middleware/lwip/contrib/examples/mdns/mdns_example.c b/middleware/lwip/contrib/examples/mdns/mdns_example.c new file mode 100644 index 0000000..49625ef --- /dev/null +++ b/middleware/lwip/contrib/examples/mdns/mdns_example.c @@ -0,0 +1,63 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#include "lwip/apps/mdns.h" +#include "mdns_example.h" + +#if LWIP_MDNS_RESPONDER +static void +srv_txt(struct mdns_service *service, void *txt_userdata) +{ + err_t res; + LWIP_UNUSED_ARG(txt_userdata); + + res = mdns_resp_add_service_txtitem(service, "path=/", 6); + LWIP_ERROR("mdns add service txt failed\n", (res == ERR_OK), return); +} +#endif + +#if LWIP_MDNS_RESPONDER +static void +mdns_example_report(struct netif* netif, u8_t result, s8_t service) +{ + LWIP_PLATFORM_DIAG(("mdns status[netif %d][service %d]: %d\n", netif->num, service, result)); +} +#endif + +void +mdns_example_init(void) +{ +#if LWIP_MDNS_RESPONDER + mdns_resp_register_name_result_cb(mdns_example_report); + mdns_resp_init(); + mdns_resp_add_netif(netif_default, "lwip"); + mdns_resp_add_service(netif_default, "myweb", "_http", DNSSD_PROTO_TCP, 80, srv_txt, NULL); + mdns_resp_announce(netif_default); +#endif +} diff --git a/middleware/lwip/contrib/examples/mdns/mdns_example.h b/middleware/lwip/contrib/examples/mdns/mdns_example.h new file mode 100644 index 0000000..ab51ade --- /dev/null +++ b/middleware/lwip/contrib/examples/mdns/mdns_example.h @@ -0,0 +1,43 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#ifndef MDNS_EXAMPLE_H +#define MDNS_EXAMPLE_H + +#ifdef __cplusplus +extern "C" { +#endif + +void mdns_example_init(void); + +#ifdef __cplusplus +} +#endif + +#endif /* MDNS_EXAMPLE_H */ diff --git a/middleware/lwip/contrib/examples/mqtt/mqtt_example.c b/middleware/lwip/contrib/examples/mqtt/mqtt_example.c new file mode 100644 index 0000000..bb277d6 --- /dev/null +++ b/middleware/lwip/contrib/examples/mqtt/mqtt_example.c @@ -0,0 +1,128 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#include "lwip/apps/mqtt.h" +#include "mqtt_example.h" + +#if LWIP_TCP + +/** Define this to a compile-time IP address initialization + * to connect anything else than IPv4 loopback + */ +#ifndef LWIP_MQTT_EXAMPLE_IPADDR_INIT +#if LWIP_IPV4 +#define LWIP_MQTT_EXAMPLE_IPADDR_INIT = IPADDR4_INIT(PP_HTONL(IPADDR_LOOPBACK)) +#else +#define LWIP_MQTT_EXAMPLE_IPADDR_INIT +#endif +#endif + +static ip_addr_t mqtt_ip LWIP_MQTT_EXAMPLE_IPADDR_INIT; +static mqtt_client_t* mqtt_client; + +static const struct mqtt_connect_client_info_t mqtt_client_info = +{ + "test", + NULL, /* user */ + NULL, /* pass */ + 100, /* keep alive */ + NULL, /* will_topic */ + NULL, /* will_msg */ + 0, /* will_qos */ + 0 /* will_retain */ +#if LWIP_ALTCP && LWIP_ALTCP_TLS + , NULL +#endif +}; + +static void +mqtt_incoming_data_cb(void *arg, const u8_t *data, u16_t len, u8_t flags) +{ + const struct mqtt_connect_client_info_t* client_info = (const struct mqtt_connect_client_info_t*)arg; + LWIP_UNUSED_ARG(data); + + LWIP_PLATFORM_DIAG(("MQTT client \"%s\" data cb: len %d, flags %d\n", client_info->client_id, + (int)len, (int)flags)); +} + +static void +mqtt_incoming_publish_cb(void *arg, const char *topic, u32_t tot_len) +{ + const struct mqtt_connect_client_info_t* client_info = (const struct mqtt_connect_client_info_t*)arg; + + LWIP_PLATFORM_DIAG(("MQTT client \"%s\" publish cb: topic %s, len %d\n", client_info->client_id, + topic, (int)tot_len)); +} + +static void +mqtt_request_cb(void *arg, err_t err) +{ + const struct mqtt_connect_client_info_t* client_info = (const struct mqtt_connect_client_info_t*)arg; + + LWIP_PLATFORM_DIAG(("MQTT client \"%s\" request cb: err %d\n", client_info->client_id, (int)err)); +} + +static void +mqtt_connection_cb(mqtt_client_t *client, void *arg, mqtt_connection_status_t status) +{ + const struct mqtt_connect_client_info_t* client_info = (const struct mqtt_connect_client_info_t*)arg; + LWIP_UNUSED_ARG(client); + + LWIP_PLATFORM_DIAG(("MQTT client \"%s\" connection cb: status %d\n", client_info->client_id, (int)status)); + + if (status == MQTT_CONNECT_ACCEPTED) { + mqtt_sub_unsub(client, + "topic_qos1", 1, + mqtt_request_cb, LWIP_CONST_CAST(void*, client_info), + 1); + mqtt_sub_unsub(client, + "topic_qos0", 0, + mqtt_request_cb, LWIP_CONST_CAST(void*, client_info), + 1); + } +} +#endif /* LWIP_TCP */ + +void +mqtt_example_init(void) +{ +#if LWIP_TCP + mqtt_client = mqtt_client_new(); + + mqtt_set_inpub_callback(mqtt_client, + mqtt_incoming_publish_cb, + mqtt_incoming_data_cb, + LWIP_CONST_CAST(void*, &mqtt_client_info)); + + mqtt_client_connect(mqtt_client, + &mqtt_ip, MQTT_PORT, + mqtt_connection_cb, LWIP_CONST_CAST(void*, &mqtt_client_info), + &mqtt_client_info); +#endif /* LWIP_TCP */ +} diff --git a/middleware/lwip/contrib/examples/mqtt/mqtt_example.h b/middleware/lwip/contrib/examples/mqtt/mqtt_example.h new file mode 100644 index 0000000..797678b --- /dev/null +++ b/middleware/lwip/contrib/examples/mqtt/mqtt_example.h @@ -0,0 +1,43 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#ifndef MQTT_EXAMPLE_H +#define MQTT_EXAMPLE_H + +#ifdef __cplusplus +extern "C" { +#endif + +void mqtt_example_init(void); + +#ifdef __cplusplus +} +#endif + +#endif /* MQTT_EXAMPLE_H */ diff --git a/middleware/lwip/contrib/examples/ppp/pppos_example.c b/middleware/lwip/contrib/examples/ppp/pppos_example.c new file mode 100644 index 0000000..84e0224 --- /dev/null +++ b/middleware/lwip/contrib/examples/ppp/pppos_example.c @@ -0,0 +1,221 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#include "lwip/dns.h" + +#ifndef PPPOS_SUPPORT +#define PPPOS_SUPPORT 0 +#endif /* PPPOS_SUPPORT */ + +#if PPPOS_SUPPORT +#include "netif/ppp/pppos.h" +#include "lwip/sio.h" +#define PPP_PTY_TEST 1 +#endif /* PPPOS_SUPPORT */ + +#include "pppos_example.h" + +#include + +#if PPPOS_SUPPORT +static sio_fd_t ppp_sio; +static ppp_pcb *ppp; +static struct netif pppos_netif; + +static void +pppos_rx_thread(void *arg) +{ + u32_t len; + u8_t buffer[128]; + LWIP_UNUSED_ARG(arg); + + /* Please read the "PPPoS input path" chapter in the PPP documentation. */ + while (1) { + len = sio_read(ppp_sio, buffer, sizeof(buffer)); + if (len > 0) { + /* Pass received raw characters from PPPoS to be decoded through lwIP + * TCPIP thread using the TCPIP API. This is thread safe in all cases + * but you should avoid passing data byte after byte. */ + pppos_input_tcpip(ppp, buffer, len); + } + } +} + +static void +ppp_link_status_cb(ppp_pcb *pcb, int err_code, void *ctx) +{ + struct netif *pppif = ppp_netif(pcb); + LWIP_UNUSED_ARG(ctx); + + switch(err_code) { + case PPPERR_NONE: /* No error. */ + { +#if LWIP_DNS + const ip_addr_t *ns; +#endif /* LWIP_DNS */ + fprintf(stderr, "ppp_link_status_cb: PPPERR_NONE\n\r"); +#if LWIP_IPV4 + fprintf(stderr, " our_ip4addr = %s\n\r", ip4addr_ntoa(netif_ip4_addr(pppif))); + fprintf(stderr, " his_ipaddr = %s\n\r", ip4addr_ntoa(netif_ip4_gw(pppif))); + fprintf(stderr, " netmask = %s\n\r", ip4addr_ntoa(netif_ip4_netmask(pppif))); +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + fprintf(stderr, " our_ip6addr = %s\n\r", ip6addr_ntoa(netif_ip6_addr(pppif, 0))); +#endif /* LWIP_IPV6 */ + +#if LWIP_DNS + ns = dns_getserver(0); + fprintf(stderr, " dns1 = %s\n\r", ipaddr_ntoa(ns)); + ns = dns_getserver(1); + fprintf(stderr, " dns2 = %s\n\r", ipaddr_ntoa(ns)); +#endif /* LWIP_DNS */ +#if PPP_IPV6_SUPPORT + fprintf(stderr, " our6_ipaddr = %s\n\r", ip6addr_ntoa(netif_ip6_addr(pppif, 0))); +#endif /* PPP_IPV6_SUPPORT */ + } + break; + + case PPPERR_PARAM: /* Invalid parameter. */ + printf("ppp_link_status_cb: PPPERR_PARAM\n"); + break; + + case PPPERR_OPEN: /* Unable to open PPP session. */ + printf("ppp_link_status_cb: PPPERR_OPEN\n"); + break; + + case PPPERR_DEVICE: /* Invalid I/O device for PPP. */ + printf("ppp_link_status_cb: PPPERR_DEVICE\n"); + break; + + case PPPERR_ALLOC: /* Unable to allocate resources. */ + printf("ppp_link_status_cb: PPPERR_ALLOC\n"); + break; + + case PPPERR_USER: /* User interrupt. */ + printf("ppp_link_status_cb: PPPERR_USER\n"); + break; + + case PPPERR_CONNECT: /* Connection lost. */ + printf("ppp_link_status_cb: PPPERR_CONNECT\n"); + break; + + case PPPERR_AUTHFAIL: /* Failed authentication challenge. */ + printf("ppp_link_status_cb: PPPERR_AUTHFAIL\n"); + break; + + case PPPERR_PROTOCOL: /* Failed to meet protocol. */ + printf("ppp_link_status_cb: PPPERR_PROTOCOL\n"); + break; + + case PPPERR_PEERDEAD: /* Connection timeout. */ + printf("ppp_link_status_cb: PPPERR_PEERDEAD\n"); + break; + + case PPPERR_IDLETIMEOUT: /* Idle Timeout. */ + printf("ppp_link_status_cb: PPPERR_IDLETIMEOUT\n"); + break; + + case PPPERR_CONNECTTIME: /* PPPERR_CONNECTTIME. */ + printf("ppp_link_status_cb: PPPERR_CONNECTTIME\n"); + break; + + case PPPERR_LOOPBACK: /* Connection timeout. */ + printf("ppp_link_status_cb: PPPERR_LOOPBACK\n"); + break; + + default: + printf("ppp_link_status_cb: unknown errCode %d\n", err_code); + break; + } +} + +static u32_t +ppp_output_cb(ppp_pcb *pcb, u8_t *data, u32_t len, void *ctx) +{ + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(ctx); + return sio_write(ppp_sio, data, len); +} + +#if LWIP_NETIF_STATUS_CALLBACK +static void +netif_status_callback(struct netif *nif) +{ + printf("PPPNETIF: %c%c%d is %s\n", nif->name[0], nif->name[1], nif->num, + netif_is_up(nif) ? "UP" : "DOWN"); +#if LWIP_IPV4 + printf("IPV4: Host at %s ", ip4addr_ntoa(netif_ip4_addr(nif))); + printf("mask %s ", ip4addr_ntoa(netif_ip4_netmask(nif))); + printf("gateway %s\n", ip4addr_ntoa(netif_ip4_gw(nif))); +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + printf("IPV6: Host at %s\n", ip6addr_ntoa(netif_ip6_addr(nif, 0))); +#endif /* LWIP_IPV6 */ +#if LWIP_NETIF_HOSTNAME + printf("FQDN: %s\n", netif_get_hostname(nif)); +#endif /* LWIP_NETIF_HOSTNAME */ +} +#endif /* LWIP_NETIF_STATUS_CALLBACK */ +#endif + +void +pppos_example_init(void) +{ +#if PPPOS_SUPPORT +#if PPP_PTY_TEST + ppp_sio = sio_open(2); +#else + ppp_sio = sio_open(0); +#endif + if(!ppp_sio) + { + perror("PPPOS example: Error opening device"); + return; + } + + ppp = pppos_create(&pppos_netif, ppp_output_cb, ppp_link_status_cb, NULL); + if (!ppp) + { + printf("PPPOS example: Could not create PPP control interface"); + return; + } + +#ifdef LWIP_PPP_CHAP_TEST + ppp_set_auth(ppp, PPPAUTHTYPE_CHAP, "lwip", "mysecret"); +#endif + + ppp_connect(ppp, 0); + +#if LWIP_NETIF_STATUS_CALLBACK + netif_set_status_callback(&pppos_netif, netif_status_callback); +#endif /* LWIP_NETIF_STATUS_CALLBACK */ + + sys_thread_new("pppos_rx_thread", pppos_rx_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); +#endif /* PPPOS_SUPPORT */ +} diff --git a/middleware/lwip/contrib/examples/ppp/pppos_example.h b/middleware/lwip/contrib/examples/ppp/pppos_example.h new file mode 100644 index 0000000..726961c --- /dev/null +++ b/middleware/lwip/contrib/examples/ppp/pppos_example.h @@ -0,0 +1,43 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#ifndef PPPOS_EXAMPLE_H +#define PPPOS_EXAMPLE_H + +#ifdef __cplusplus +extern "C" { +#endif + +void pppos_example_init(void); + +#ifdef __cplusplus +} +#endif + +#endif /* PPPOS_EXAMPLE_H */ diff --git a/middleware/lwip/contrib/examples/snmp/snmp_example.c b/middleware/lwip/contrib/examples/snmp/snmp_example.c new file mode 100644 index 0000000..5952474 --- /dev/null +++ b/middleware/lwip/contrib/examples/snmp/snmp_example.c @@ -0,0 +1,80 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#include "lwip/netif.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_mib2.h" +#include "lwip/apps/snmpv3.h" +#include "lwip/apps/snmp_snmpv2_framework.h" +#include "lwip/apps/snmp_snmpv2_usm.h" +#include "examples/snmp/snmp_v3/snmpv3_dummy.h" +#include "examples/snmp/snmp_private_mib/private_mib.h" +#include "snmp_example.h" + +#if LWIP_SNMP +static const struct snmp_mib *mibs[] = { + &mib2, + &mib_private +#if LWIP_SNMP_V3 + , &snmpframeworkmib + , &snmpusmmib +#endif +}; +#endif /* LWIP_SNMP */ + +void +snmp_example_init(void) +{ +#if LWIP_SNMP + s32_t req_nr; + lwip_privmib_init(); +#if SNMP_LWIP_MIB2 +#if SNMP_USE_NETCONN + snmp_threadsync_init(&snmp_mib2_lwip_locks, snmp_mib2_lwip_synchronizer); +#endif /* SNMP_USE_NETCONN */ + snmp_mib2_set_syscontact_readonly((const u8_t*)"root", NULL); + snmp_mib2_set_syslocation_readonly((const u8_t*)"lwIP development PC", NULL); + snmp_mib2_set_sysdescr((const u8_t*)"lwIP example", NULL); +#endif /* SNMP_LWIP_MIB2 */ + +#if LWIP_SNMP_V3 + snmpv3_dummy_init(); +#endif + + snmp_set_mibs(mibs, LWIP_ARRAYSIZE(mibs)); + snmp_init(); + + snmp_trap_dst_ip_set(0, &netif_default->gw); + snmp_trap_dst_enable(0, 1); + + snmp_send_inform_generic(SNMP_GENTRAP_COLDSTART, NULL, &req_nr); + snmp_send_trap_generic(SNMP_GENTRAP_COLDSTART); + +#endif /* LWIP_SNMP */ +} diff --git a/middleware/lwip/contrib/examples/snmp/snmp_example.h b/middleware/lwip/contrib/examples/snmp/snmp_example.h new file mode 100644 index 0000000..fafcd68 --- /dev/null +++ b/middleware/lwip/contrib/examples/snmp/snmp_example.h @@ -0,0 +1,43 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#ifndef SNMP_EXAMPLE_H +#define SNMP_EXAMPLE_H + +#ifdef __cplusplus +extern "C" { +#endif + +void snmp_example_init(void); + +#ifdef __cplusplus +} +#endif + +#endif /* SNMP_EXAMPLE_H */ diff --git a/middleware/lwip/contrib/examples/snmp/snmp_private_mib/lwip_prvmib.c b/middleware/lwip/contrib/examples/snmp/snmp_private_mib/lwip_prvmib.c new file mode 100644 index 0000000..51a49fe --- /dev/null +++ b/middleware/lwip/contrib/examples/snmp/snmp_private_mib/lwip_prvmib.c @@ -0,0 +1,401 @@ +/** + * @file + * lwip Private MIB + * + * @todo create MIB file for this example + * @note the lwip enterprise tree root (26381) is owned by the lwIP project. + * It is NOT allowed to allocate new objects under this ID (26381) without our, + * the lwip developers, permission! + * + * Please apply for your own ID with IANA: http://www.iana.org/numbers.html + * + * lwip OBJECT IDENTIFIER ::= { enterprises 26381 } + * example OBJECT IDENTIFIER ::= { lwip 1 } + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Christiaan Simons + */ + +#include "private_mib.h" + +#if LWIP_SNMP + +/** Directory where the sensor files are */ +#define SENSORS_DIR "w:\\sensors" +/** Set to 1 to read sensor values from files (in directory defined by SENSORS_DIR) */ +#define SENSORS_USE_FILES 0 +/** Set to 1 to search sensor files at startup (in directory defined by SENSORS_DIR) */ +#define SENSORS_SEARCH_FILES 0 + +#if SENSORS_SEARCH_FILES +#include +#include +#include +#include +#include +#endif /* SENSORS_SEARCH_FILES */ + +#include +#include + +#include "lwip/apps/snmp_table.h" +#include "lwip/apps/snmp_scalar.h" + +#if !SENSORS_USE_FILES || !SENSORS_SEARCH_FILES +/** When not using & searching files, defines the number of sensors */ +#define SENSOR_COUNT 4 +#endif /* !SENSORS_USE_FILES || !SENSORS_SEARCH_FILES */ + +/* + This example presents a table for a few (at most 10) sensors. + Sensor detection takes place at initialization (once only). + Sensors may and can not be added or removed after agent + has started. Note this is only a limitation of this crude example, + the agent does support dynamic object insertions and removals. + + You'll need to manually create a directory called "sensors" and + a few single line text files with an integer temperature value. + The files must be called [0..9].txt. + + ./sensors/0.txt [content: 20] + ./sensors/3.txt [content: 75] + + The sensor values may be changed in runtime by editing the + text files in the "sensors" directory. +*/ + +#define SENSOR_MAX 10 +#define SENSOR_NAME_LEN 20 + +struct sensor_inf +{ + u8_t num; + + char file[SENSOR_NAME_LEN + 1]; + +#if !SENSORS_USE_FILES + /** When not using files, contains the value of the sensor */ + s32_t value; +#endif /* !SENSORS_USE_FILES */ +}; + +static struct sensor_inf sensors[SENSOR_MAX]; + +static s16_t sensor_count_get_value(struct snmp_node_instance* instance, void* value); +static snmp_err_t sensor_table_get_cell_instance(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, struct snmp_node_instance* cell_instance); +static snmp_err_t sensor_table_get_next_cell_instance(const u32_t* column, struct snmp_obj_id* row_oid, struct snmp_node_instance* cell_instance); +static s16_t sensor_table_get_value(struct snmp_node_instance* instance, void* value); +static snmp_err_t sensor_table_set_value(struct snmp_node_instance* instance, u16_t len, void *value); + +/* sensorentry .1.3.6.1.4.1.26381.1.1.1 (.level0.level1) + where level 0 is the table column (temperature/file name) + and level 1 the table row (sensor index) */ +static const struct snmp_table_col_def sensor_table_columns[] = { + { 1, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_WRITE }, + { 2, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY } +}; + +/* sensortable .1.3.6.1.4.1.26381.1.1 */ +static const struct snmp_table_node sensor_table = SNMP_TABLE_CREATE( + 1, sensor_table_columns, + sensor_table_get_cell_instance, sensor_table_get_next_cell_instance, + sensor_table_get_value, snmp_set_test_ok, sensor_table_set_value); + +/* sensorcount .1.3.6.1.4.1.26381.1.2 */ +static const struct snmp_scalar_node sensor_count = SNMP_SCALAR_CREATE_NODE_READONLY( + 2, SNMP_ASN1_TYPE_INTEGER, sensor_count_get_value); + +/* example .1.3.6.1.4.1.26381.1 */ +static const struct snmp_node* const example_nodes[] = { + &sensor_table.node.node, + &sensor_count.node.node +}; +static const struct snmp_tree_node example_node = SNMP_CREATE_TREE_NODE(1, example_nodes); + +static const u32_t prvmib_base_oid[] = { 1,3,6,1,4,1,26381,1 }; +const struct snmp_mib mib_private = SNMP_MIB_CREATE(prvmib_base_oid, &example_node.node); + +#if 0 +/* for reference: we could also have expressed it like this: */ + +/* lwip .1.3.6.1.4.1.26381 */ +static const struct snmp_node* const lwip_nodes[] = { + &example_node.node +}; +static const struct snmp_tree_node lwip_node = SNMP_CREATE_TREE_NODE(26381, lwip_nodes); + +/* enterprises .1.3.6.1.4.1 */ +static const struct snmp_node* const enterprises_nodes[] = { + &lwip_node.node +}; +static const struct snmp_tree_node enterprises_node = SNMP_CREATE_TREE_NODE(1, enterprises_nodes); + +/* private .1.3.6.1.4 */ +static const struct snmp_node* const private_nodes[] = { + &enterprises_node.node +}; +static const struct snmp_tree_node private_root = SNMP_CREATE_TREE_NODE(4, private_nodes); + +static const u32_t prvmib_base_oid[] = { 1,3,6,1,4 }; +const struct snmp_mib mib_private = SNMP_MIB_CREATE(prvmib_base_oid, &private_root.node); +#endif + +/** + * Initialises this private MIB before use. + * @see main.c + */ +void +lwip_privmib_init(void) +{ +#if SENSORS_USE_FILES && SENSORS_SEARCH_FILES + char *buf, *ebuf, *cp; + size_t bufsize; + int nbytes; + struct stat sb; + struct dirent *dp; + int fd; +#else /* SENSORS_USE_FILES && SENSORS_SEARCH_FILES */ + u8_t i; +#endif /* SENSORS_USE_FILES && SENSORS_SEARCH_FILES */ + + memset(sensors, 0, sizeof(sensors)); + + printf("SNMP private MIB start, detecting sensors.\n"); + +#if SENSORS_USE_FILES && SENSORS_SEARCH_FILES + /* look for sensors in sensors directory */ + fd = open(SENSORS_DIR, O_RDONLY); + if (fd > -1) + { + fstat(fd, &sb); + bufsize = sb.st_size; + if (bufsize < (size_t)sb.st_blksize) + { + bufsize = sb.st_blksize; + } + buf = (char*)malloc(bufsize); + if (buf != NULL) + { + do + { + long base; + + nbytes = getdirentries(fd, buf, bufsize, &base); + if (nbytes > 0) + { + ebuf = buf + nbytes; + cp = buf; + while (cp < ebuf) + { + dp = (struct dirent *)cp; + if (lwip_isdigit(dp->d_name[0])) + { + unsigned char idx = dp->d_name[0] - '0'; + + sensors[idx].num = idx+1; + strncpy(&sensors[idx].file[0], dp->d_name, SENSOR_NAME_LEN); + printf("%s\n", sensors[idx].file); + } + cp += dp->d_reclen; + } + } + } + while (nbytes > 0); + + free(buf); + } + close(fd); + } +#else /* SENSORS_USE_FILES && SENSORS_SEARCH_FILES */ + for (i = 0; i < SENSOR_COUNT; i++) { + sensors[i].num = (u8_t)(i + 1); + snprintf(sensors[i].file, sizeof(sensors[i].file), "%d.txt", i); + +#if !SENSORS_USE_FILES + /* initialize sensor value to != zero */ + sensors[i].value = 11 * (i+1); +#endif /* !SENSORS_USE_FILES */ + } +#endif /* SENSORS_USE_FILE && SENSORS_SEARCH_FILES */ +} + +/* sensorcount .1.3.6.1.4.1.26381.1.2 */ +static s16_t +sensor_count_get_value(struct snmp_node_instance* instance, void* value) +{ + size_t count = 0; + u32_t *uint_ptr = (u32_t*)value; + + LWIP_UNUSED_ARG(instance); + + for(count=0; countreference.u32 = (u32_t)i; + return SNMP_ERR_NOERROR; + } + } + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static snmp_err_t +sensor_table_get_next_cell_instance(const u32_t* column, struct snmp_obj_id* row_oid, struct snmp_node_instance* cell_instance) +{ + size_t i; + struct snmp_next_oid_state state; + u32_t result_temp[LWIP_ARRAYSIZE(sensor_table_oid_ranges)]; + + LWIP_UNUSED_ARG(column); + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(sensor_table_oid_ranges)); + + /* iterate over all possible OIDs to find the next one */ + for(i=0; ireference.u32 = LWIP_CONST_CAST(u32_t, state.reference); + return SNMP_ERR_NOERROR; + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static s16_t +sensor_table_get_value(struct snmp_node_instance* instance, void* value) +{ + u32_t i = instance->reference.u32; + s32_t *temperature = (s32_t *)value; + + switch (SNMP_TABLE_GET_COLUMN_FROM_OID(instance->instance_oid.id)) + { + case 1: /* sensor value */ +#if SENSORS_USE_FILES + FILE* sensf; + char senspath[sizeof(SENSORS_DIR)+1+SENSOR_NAME_LEN+1] = SENSORS_DIR"/"; + + strncpy(&senspath[sizeof(SENSORS_DIR)], + sensors[i].file, + SENSOR_NAME_LEN); + sensf = fopen(senspath,"r"); + if (sensf != NULL) + { + fscanf(sensf,"%"S32_F,temperature); + fclose(sensf); + } +#else /* SENSORS_USE_FILES */ + *temperature = sensors[i].value; +#endif /* SENSORS_USE_FILES */ + return sizeof(s32_t); + case 2: /* file name */ + MEMCPY(value, sensors[i].file, strlen(sensors[i].file)); + return (s16_t)strlen(sensors[i].file); + default: + return 0; + } +} + +static snmp_err_t +sensor_table_set_value(struct snmp_node_instance* instance, u16_t len, void *value) +{ + u32_t i = instance->reference.u32; + s32_t *temperature = (s32_t *)value; +#if SENSORS_USE_FILES + FILE* sensf; + char senspath[sizeof(SENSORS_DIR)+1+SENSOR_NAME_LEN+1] = SENSORS_DIR"/"; + + strncpy(&senspath[sizeof(SENSORS_DIR)], + sensors[i].file, + SENSOR_NAME_LEN); + sensf = fopen(senspath, "w"); + if (sensf != NULL) + { + fprintf(sensf, "%"S32_F, *temperature); + fclose(sensf); + } +#else /* SENSORS_USE_FILES */ + sensors[i].value = *temperature; +#endif /* SENSORS_USE_FILES */ + + LWIP_UNUSED_ARG(len); + + return SNMP_ERR_NOERROR; +} + +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/contrib/examples/snmp/snmp_private_mib/private_mib.h b/middleware/lwip/contrib/examples/snmp/snmp_private_mib/private_mib.h new file mode 100644 index 0000000..69be8a4 --- /dev/null +++ b/middleware/lwip/contrib/examples/snmp/snmp_private_mib/private_mib.h @@ -0,0 +1,26 @@ +/** + * @file + * Exports Private lwIP MIB + */ + +#ifndef LWIP_HDR_PRIVATE_MIB_H +#define LWIP_HDR_PRIVATE_MIB_H + +#include "lwip/apps/snmp_opts.h" + +#include "lwip/apps/snmp_core.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* export MIB */ +extern const struct snmp_mib mib_private; + +void lwip_privmib_init(void); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/middleware/lwip/contrib/examples/snmp/snmp_v3/snmpv3_dummy.c b/middleware/lwip/contrib/examples/snmp/snmp_v3/snmpv3_dummy.c new file mode 100644 index 0000000..a7c53ed --- /dev/null +++ b/middleware/lwip/contrib/examples/snmp/snmp_v3/snmpv3_dummy.c @@ -0,0 +1,395 @@ +/** + * @file + * Dummy SNMPv3 functions. + */ + +/* + * Copyright (c) 2016 Elias Oenal. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Elias Oenal + * Dirk Ziegelmeier + */ + +#include "lwip/apps/snmpv3.h" +#include "snmpv3_dummy.h" +#include +#include "lwip/err.h" +#include "lwip/def.h" +#include "lwip/timeouts.h" + +#if LWIP_SNMP && LWIP_SNMP_V3 + +struct user_table_entry { + char username[32]; + snmpv3_auth_algo_t auth_algo; + u8_t auth_key[20]; + snmpv3_priv_algo_t priv_algo; + u8_t priv_key[20]; +}; + +static struct user_table_entry user_table[] = { + { "lwip", SNMP_V3_AUTH_ALGO_INVAL, "" , SNMP_V3_PRIV_ALGO_INVAL, "" }, + { "piwl", SNMP_V3_AUTH_ALGO_INVAL, "" , SNMP_V3_PRIV_ALGO_INVAL, "" }, + { "test", SNMP_V3_AUTH_ALGO_INVAL, "" , SNMP_V3_PRIV_ALGO_INVAL, "" } +}; + +static char snmpv3_engineid[32]; +static u8_t snmpv3_engineid_len; + +static u32_t enginetime = 0; + +/* In this implementation engineboots is volatile. In a real world application this value should be stored in non-volatile memory.*/ +static u32_t engineboots = 0; + +/** + * @brief Get the user table entry for the given username. + * + * @param[in] username pointer to the username + * + * @return pointer to the user table entry or NULL if not found. + */ +static struct user_table_entry* +get_user(const char *username) +{ + size_t i; + + for (i = 0; i < LWIP_ARRAYSIZE(user_table); i++) { + if (strnlen(username, 32) != strnlen(user_table[i].username, 32)) { + continue; + } + + if (memcmp(username, user_table[i].username, strnlen(username, 32)) == 0) { + return &user_table[i]; + } + } + + return NULL; +} + +u8_t +snmpv3_get_amount_of_users(void) +{ + return LWIP_ARRAYSIZE(user_table); +} + +/** + * @brief Get the username of a user number (index) + * @param username is a pointer to a string. + * @param index is the user index. + * @return ERR_OK if user is found, ERR_VAL is user is not found. + */ +err_t +snmpv3_get_username(char *username, u8_t index) +{ + if (index < LWIP_ARRAYSIZE(user_table)) { + MEMCPY(username, user_table[index].username, sizeof(user_table[0].username)); + return ERR_OK; + } + + return ERR_VAL; +} + +/** + * Timer callback function that increments enginetime and reschedules itself. + * + * @param arg unused argument + */ +static void +snmpv3_enginetime_timer(void *arg) +{ + LWIP_UNUSED_ARG(arg); + + enginetime++; + + /* This handles the engine time reset */ + snmpv3_get_engine_time_internal(); + + /* restart timer */ + sys_timeout(1000, snmpv3_enginetime_timer, NULL); +} + +err_t +snmpv3_set_user_auth_algo(const char *username, snmpv3_auth_algo_t algo) +{ + struct user_table_entry *p = get_user(username); + + if (p) { + switch (algo) { + case SNMP_V3_AUTH_ALGO_INVAL: + if (p->priv_algo != SNMP_V3_PRIV_ALGO_INVAL) { + /* Privacy MUST be disabled before configuring authentication */ + break; + } else { + p->auth_algo = algo; + return ERR_OK; + } +#if LWIP_SNMP_V3_CRYPTO + case SNMP_V3_AUTH_ALGO_MD5: + case SNMP_V3_AUTH_ALGO_SHA: +#endif + p->auth_algo = algo; + return ERR_OK; + default: + break; + } + } + + return ERR_VAL; +} + +err_t +snmpv3_set_user_priv_algo(const char *username, snmpv3_priv_algo_t algo) +{ + struct user_table_entry *p = get_user(username); + + if (p) { + switch (algo) { +#if LWIP_SNMP_V3_CRYPTO + case SNMP_V3_PRIV_ALGO_AES: + case SNMP_V3_PRIV_ALGO_DES: + if (p->auth_algo == SNMP_V3_AUTH_ALGO_INVAL) { + /* Authentication MUST be enabled before configuring privacy */ + break; + } else { + p->priv_algo = algo; + return ERR_OK; + } +#endif + case SNMP_V3_PRIV_ALGO_INVAL: + p->priv_algo = algo; + return ERR_OK; + default: + break; + } + } + + return ERR_VAL; +} + +err_t +snmpv3_set_user_auth_key(const char *username, const char *password) +{ + struct user_table_entry *p = get_user(username); + const char *engineid; + u8_t engineid_len; + + if (p) { + /* password should be at least 8 characters long */ + if (strlen(password) >= 8) { + memset(p->auth_key, 0, sizeof(p->auth_key)); + snmpv3_get_engine_id(&engineid, &engineid_len); + switch (p->auth_algo) { + case SNMP_V3_AUTH_ALGO_INVAL: + return ERR_OK; +#if LWIP_SNMP_V3_CRYPTO + case SNMP_V3_AUTH_ALGO_MD5: + snmpv3_password_to_key_md5((const u8_t*)password, strlen(password), (const u8_t*)engineid, engineid_len, p->auth_key); + return ERR_OK; + case SNMP_V3_AUTH_ALGO_SHA: + snmpv3_password_to_key_sha((const u8_t*)password, strlen(password), (const u8_t*)engineid, engineid_len, p->auth_key); + return ERR_OK; +#endif + default: + return ERR_VAL; + } + } + } + + return ERR_VAL; +} + +err_t +snmpv3_set_user_priv_key(const char *username, const char *password) +{ + struct user_table_entry *p = get_user(username); + const char *engineid; + u8_t engineid_len; + + if (p) { + /* password should be at least 8 characters long */ + if (strlen(password) >= 8) { + memset(p->priv_key, 0, sizeof(p->priv_key)); + snmpv3_get_engine_id(&engineid, &engineid_len); + switch (p->auth_algo) { + case SNMP_V3_AUTH_ALGO_INVAL: + return ERR_OK; +#if LWIP_SNMP_V3_CRYPTO + case SNMP_V3_AUTH_ALGO_MD5: + snmpv3_password_to_key_md5((const u8_t*)password, strlen(password), (const u8_t*)engineid, engineid_len, p->priv_key); + return ERR_OK; + case SNMP_V3_AUTH_ALGO_SHA: + snmpv3_password_to_key_sha((const u8_t*)password, strlen(password), (const u8_t*)engineid, engineid_len, p->priv_key); + return ERR_OK; +#endif + default: + return ERR_VAL; + } + } + } + + return ERR_VAL; +} + +/** + * @brief Get the storage type of the given username. + * + * @param[in] username pointer to the username + * @param[out] type the storage type + * + * @return ERR_OK if the user was found, ERR_VAL if not. + */ +err_t +snmpv3_get_user_storagetype(const char *username, snmpv3_user_storagetype_t *type) +{ + if (get_user(username) != NULL) { + /* Found user in user table + * In this dummy implementation, storage is permanent because no user can be deleted. + * All changes to users are lost after a reboot.*/ + *type = SNMP_V3_USER_STORAGETYPE_PERMANENT; + return ERR_OK; + } + + return ERR_VAL; +} + +/** + * @param username is a pointer to a string. + * @param auth_algo is a pointer to u8_t. The implementation has to set this if user was found. + * @param auth_key is a pointer to a pointer to a string. Implementation has to set this if user was found. + * @param priv_algo is a pointer to u8_t. The implementation has to set this if user was found. + * @param priv_key is a pointer to a pointer to a string. Implementation has to set this if user was found. + */ +err_t +snmpv3_get_user(const char* username, snmpv3_auth_algo_t *auth_algo, u8_t *auth_key, snmpv3_priv_algo_t *priv_algo, u8_t *priv_key) +{ + const struct user_table_entry *p; + + /* The msgUserName specifies the user (principal) on whose behalf the + message is being exchanged. Note that a zero-length userName will + not match any user, but it can be used for snmpEngineID discovery. */ + if(strlen(username) == 0) { + return ERR_OK; + } + + p = get_user(username); + + if (!p) { + return ERR_VAL; + } + + if (auth_algo != NULL) { + *auth_algo = p->auth_algo; + } + if(auth_key != NULL) { + MEMCPY(auth_key, p->auth_key, sizeof(p->auth_key)); + } + if (priv_algo != NULL) { + *priv_algo = p->priv_algo; + } + if(priv_key != NULL) { + MEMCPY(priv_key, p->priv_key, sizeof(p->priv_key)); + } + return ERR_OK; +} + +/** + * Get engine ID from persistence + */ +void +snmpv3_get_engine_id(const char **id, u8_t *len) +{ + *id = snmpv3_engineid; + *len = snmpv3_engineid_len; +} + +/** + * Store engine ID in persistence + */ +err_t +snmpv3_set_engine_id(const char *id, u8_t len) +{ + MEMCPY(snmpv3_engineid, id, len); + snmpv3_engineid_len = len; + return ERR_OK; +} + +/** + * Get engine boots from persistence. Must be increased on each boot. + */ +u32_t +snmpv3_get_engine_boots(void) +{ + return engineboots; +} + +/** + * Store engine boots in persistence + */ +void +snmpv3_set_engine_boots(u32_t boots) +{ + engineboots = boots; +} + +/** + * RFC3414 2.2.2. + * Once the timer reaches 2147483647 it gets reset to zero and the + * engine boot ups get incremented. + */ +u32_t +snmpv3_get_engine_time(void) +{ + return enginetime; +} + +/** + * Reset current engine time to 0 + */ +void +snmpv3_reset_engine_time(void) +{ + enginetime = 0; +} + +/** + * Initialize dummy SNMPv3 implementation + */ +void +snmpv3_dummy_init(void) +{ + snmpv3_set_engine_id("FOO", 3); + + snmpv3_set_user_auth_algo("lwip", SNMP_V3_AUTH_ALGO_SHA); + snmpv3_set_user_auth_key("lwip", "maplesyrup"); + + snmpv3_set_user_priv_algo("lwip", SNMP_V3_PRIV_ALGO_DES); + snmpv3_set_user_priv_key("lwip", "maplesyrup"); + + /* Start the engine time timer */ + snmpv3_enginetime_timer(NULL); +} + +#endif /* LWIP_SNMP && LWIP_SNMP_V3 */ diff --git a/middleware/lwip/contrib/examples/snmp/snmp_v3/snmpv3_dummy.h b/middleware/lwip/contrib/examples/snmp/snmp_v3/snmpv3_dummy.h new file mode 100644 index 0000000..ba25b6d --- /dev/null +++ b/middleware/lwip/contrib/examples/snmp/snmp_v3/snmpv3_dummy.h @@ -0,0 +1,53 @@ +/** + * @file + * Dummy SNMPv3 functions. + */ + +/* + * Copyright (c) 2017 Dirk Ziegelmeier. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + */ + +#ifndef LWIP_HDR_APPS_SNMP_V3_DUMMY_H +#define LWIP_HDR_APPS_SNMP_V3_DUMMY_H + +#include "lwip/apps/snmp_opts.h" +#include "lwip/err.h" +#include "lwip/apps/snmpv3.h" + +#if LWIP_SNMP && LWIP_SNMP_V3 + +err_t snmpv3_set_user_auth_algo(const char *username, snmpv3_auth_algo_t algo); +err_t snmpv3_set_user_priv_algo(const char *username, snmpv3_priv_algo_t algo); +err_t snmpv3_set_user_auth_key(const char *username, const char *password); +err_t snmpv3_set_user_priv_key(const char *username, const char *password); + +void snmpv3_dummy_init(void); + +#endif /* LWIP_SNMP && LWIP_SNMP_V3 */ + +#endif /* LWIP_HDR_APPS_SNMP_V3_DUMMY_H */ diff --git a/middleware/lwip/contrib/examples/sntp/sntp_example.c b/middleware/lwip/contrib/examples/sntp/sntp_example.c new file mode 100644 index 0000000..60178bf --- /dev/null +++ b/middleware/lwip/contrib/examples/sntp/sntp_example.c @@ -0,0 +1,66 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#include + +#include "lwip/opt.h" +#include "lwip/apps/sntp.h" +#include "sntp_example.h" +#include "lwip/netif.h" + +void +sntp_set_system_time(u32_t sec) +{ + char buf[32]; + struct tm current_time_val; + time_t current_time = (time_t)sec; + +#ifdef _MSC_VER + localtime_s(¤t_time_val, ¤t_time); +#else + localtime_r(¤t_time, ¤t_time_val); +#endif + + strftime(buf, sizeof(buf), "%d.%m.%Y %H:%M:%S", ¤t_time_val); + LWIP_PLATFORM_DIAG(("SNTP time: %s\n", buf)); +} + +void +sntp_example_init(void) +{ + sntp_setoperatingmode(SNTP_OPMODE_POLL); +#if LWIP_DHCP + sntp_servermode_dhcp(1); /* get SNTP server via DHCP */ +#else /* LWIP_DHCP */ +#if LWIP_IPV4 + sntp_setserver(0, netif_ip_gw4(netif_default)); +#endif /* LWIP_IPV4 */ +#endif /* LWIP_DHCP */ + sntp_init(); +} diff --git a/middleware/lwip/contrib/examples/sntp/sntp_example.h b/middleware/lwip/contrib/examples/sntp/sntp_example.h new file mode 100644 index 0000000..94fc10d --- /dev/null +++ b/middleware/lwip/contrib/examples/sntp/sntp_example.h @@ -0,0 +1,45 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#ifndef SNTP_EXAMPLE_H +#define SNTP_EXAMPLE_H + +#ifdef __cplusplus +extern "C" { +#endif + +void sntp_example_init(void); + +void sntp_set_system_time(u32_t sec); + +#ifdef __cplusplus +} +#endif + +#endif /* SNTP_EXAMPLE_H */ diff --git a/middleware/lwip/contrib/examples/tftp/tftp_example.c b/middleware/lwip/contrib/examples/tftp/tftp_example.c new file mode 100644 index 0000000..3e14014 --- /dev/null +++ b/middleware/lwip/contrib/examples/tftp/tftp_example.c @@ -0,0 +1,155 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#include + +#include "lwip/apps/tftp_client.h" +#include "lwip/apps/tftp_server.h" +#include "tftp_example.h" + +#include + +#if LWIP_UDP + +/* Define a base directory for TFTP access + * ATTENTION: This code does NOT check for sandboxing, + * i.e. '..' in paths is not checked! */ +#ifndef LWIP_TFTP_EXAMPLE_BASE_DIR +#define LWIP_TFTP_EXAMPLE_BASE_DIR "" +#endif + +/* Define this to a file to get via tftp client */ +#ifndef LWIP_TFTP_EXAMPLE_CLIENT_FILENAME +#define LWIP_TFTP_EXAMPLE_CLIENT_FILENAME "test.bin" +#endif + +/* Define this to a server IP string */ +#ifndef LWIP_TFTP_EXAMPLE_CLIENT_REMOTEIP +#define LWIP_TFTP_EXAMPLE_CLIENT_REMOTEIP "192.168.0.1" +#endif + +static char full_filename[256]; + +static void * +tftp_open_file(const char* fname, u8_t is_write) +{ + snprintf(full_filename, sizeof(full_filename), "%s%s", LWIP_TFTP_EXAMPLE_BASE_DIR, fname); + full_filename[sizeof(full_filename)-1] = 0; + + if (is_write) { + return (void*)fopen(full_filename, "wb"); + } else { + return (void*)fopen(full_filename, "rb"); + } +} + +static void* +tftp_open(const char* fname, const char* mode, u8_t is_write) +{ + LWIP_UNUSED_ARG(mode); + return tftp_open_file(fname, is_write); +} + +static void +tftp_close(void* handle) +{ + fclose((FILE*)handle); +} + +static int +tftp_read(void* handle, void* buf, int bytes) +{ + int ret = fread(buf, 1, bytes, (FILE*)handle); + if (ret <= 0) { + return -1; + } + return ret; +} + +static int +tftp_write(void* handle, struct pbuf* p) +{ + while (p != NULL) { + if (fwrite(p->payload, 1, p->len, (FILE*)handle) != (size_t)p->len) { + return -1; + } + p = p->next; + } + + return 0; +} + +/* For TFTP client only */ +static void +tftp_error(void* handle, int err, const char* msg, int size) +{ + char message[100]; + + LWIP_UNUSED_ARG(handle); + + memset(message, 0, sizeof(message)); + MEMCPY(message, msg, LWIP_MIN(sizeof(message)-1, (size_t)size)); + + printf("TFTP error: %d (%s)", err, message); +} + +static const struct tftp_context tftp = { + tftp_open, + tftp_close, + tftp_read, + tftp_write, + tftp_error +}; + +void +tftp_example_init_server(void) +{ + tftp_init_server(&tftp); +} + +void +tftp_example_init_client(void) +{ + void *f; + err_t err; + ip_addr_t srv; + int ret = ipaddr_aton(LWIP_TFTP_EXAMPLE_CLIENT_REMOTEIP, &srv); + LWIP_ASSERT("ipaddr_aton failed", ret == 1); + + err = tftp_init_client(&tftp); + LWIP_ASSERT("tftp_init_client failed", err == ERR_OK); + + f = tftp_open_file(LWIP_TFTP_EXAMPLE_CLIENT_FILENAME, 1); + LWIP_ASSERT("failed to create file", f != NULL); + + err = tftp_get(f, &srv, TFTP_PORT, LWIP_TFTP_EXAMPLE_CLIENT_FILENAME, TFTP_MODE_OCTET); + LWIP_ASSERT("tftp_get failed", err == ERR_OK); +} + +#endif /* LWIP_UDP */ diff --git a/middleware/lwip/contrib/examples/tftp/tftp_example.h b/middleware/lwip/contrib/examples/tftp/tftp_example.h new file mode 100644 index 0000000..7340700 --- /dev/null +++ b/middleware/lwip/contrib/examples/tftp/tftp_example.h @@ -0,0 +1,29 @@ +/* + * To change this license header, choose License Headers in Project Properties. + * To change this template file, choose Tools | Templates + * and open the template in the editor. + */ + +/* + * File: tftp_example.h + * Author: dziegel + * + * Created on February 17, 2018, 3:43 PM + */ + +#ifndef TFTP_EXAMPLE_H +#define TFTP_EXAMPLE_H + +#ifdef __cplusplus +extern "C" { +#endif + +void tftp_example_init_server(void); +void tftp_example_init_client(void); + +#ifdef __cplusplus +} +#endif + +#endif /* TFTP_EXAMPLE_H */ + diff --git a/middleware/lwip/contrib/ports/Common.allports.mk b/middleware/lwip/contrib/ports/Common.allports.mk new file mode 100644 index 0000000..862324e --- /dev/null +++ b/middleware/lwip/contrib/ports/Common.allports.mk @@ -0,0 +1,91 @@ +# +# Copyright (c) 2001, 2002 Swedish Institute of Computer Science. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT +# SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT +# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY +# OF SUCH DAMAGE. +# +# This file is part of the lwIP TCP/IP stack. +# +# Author: Adam Dunkels +# + +#CC=gcc +#CC=clang +CCDEP?=$(CC) + +CFLAGS+=-g -DLWIP_DEBUG -Wall -pedantic -Werror \ + -Wparentheses -Wsequence-point -Wswitch-default \ + -Wextra -Wundef -Wshadow -Wpointer-arith -Wcast-qual \ + -Wc++-compat -Wwrite-strings -Wold-style-definition -Wcast-align \ + -Wmissing-prototypes -Wredundant-decls -Wnested-externs \ + -Wunreachable-code -Wuninitialized -Wmissing-prototypes \ + -Wredundant-decls -Waggregate-return -Wlogical-not-parentheses +# -Wconversion -Wsign-compare -Wmissing-include-dirs + +ifeq (,$(findstring clang,$(CC))) +CFLAGS+= -Wlogical-op -Wc90-c99-compat -Wtrampolines +# if GCC is newer than 4.8/4.9 you may use: +#CFLAGS:=$(CFLAGS) -fsanitize=address -fstack-protector -fstack-check -fsanitize=undefined -fno-sanitize=alignment +else +# we cannot sanitize alignment on x86-64 targets because clang wants 64 bit alignment +CFLAGS+= -fsanitize=address -fsanitize=undefined -fno-sanitize=alignment -Wdocumentation -Wno-documentation-deprecated-sync +endif + +CONTRIBDIR?=../../.. +ARFLAGS?=rs + +#Set this to where you have the lwip core module checked out from git +#default assumes it's a dir above the contrib module +LWIPDIR?=$(CONTRIBDIR)/.. + +CFLAGS+=-I. \ + -I$(CONTRIBDIR) \ + -I$(LWIPDIR)/include \ + -I$(LWIPARCH)/include + +# Add include path and link to mbedTLS lib if available +MBEDTLSDIR?=$(LWIPDIR)/../mbedtls +ifneq (,$(wildcard $(MBEDTLSDIR)/include/mbedtls/*.h)) +LDFLAGS+=-L$(MBEDTLSDIR)/library -lmbedtls -lmbedcrypto -lmbedx509 +CFLAGS+=-I$(MBEDTLSDIR)/include -Wno-redundant-decls -DLWIP_HAVE_MBEDTLS=1 -Wno-c90-c99-compat +endif + +include $(CONTRIBDIR)/Filelists.mk +include $(LWIPDIR)/Filelists.mk + +# LWIPFILES: All the above. +LWIPFILES=$(LWIPNOAPPSFILES) $(ARCHFILES) +LWIPOBJS=$(notdir $(LWIPFILES:.c=.o)) + +LWIPLIBCOMMON=liblwipcommon.a +$(LWIPLIBCOMMON): $(LWIPOBJS) + $(AR) $(ARFLAGS) $(LWIPLIBCOMMON) $? + +APPFILES=$(CONTRIBAPPFILES) $(LWIPAPPFILES) +APPLIB=liblwipapps.a +APPOBJS=$(notdir $(APPFILES:.c=.o)) +$(APPLIB): $(APPOBJS) + $(AR) $(ARFLAGS) $(APPLIB) $? + +%.o: + $(CC) $(CFLAGS) -c $< diff --git a/middleware/lwip/contrib/ports/freertos/include/arch/sys_arch.h b/middleware/lwip/contrib/ports/freertos/include/arch/sys_arch.h new file mode 100644 index 0000000..0cfc889 --- /dev/null +++ b/middleware/lwip/contrib/ports/freertos/include/arch/sys_arch.h @@ -0,0 +1,95 @@ +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmdit + * + */ +#ifndef LWIP_ARCH_SYS_ARCH_H +#define LWIP_ARCH_SYS_ARCH_H + +#include "lwip/opt.h" +#include "lwip/arch.h" + +/** This is returned by _fromisr() sys functions to tell the outermost function + * that a higher priority task was woken and the scheduler needs to be invoked. + */ +#define ERR_NEED_SCHED 123 + +/* This port includes FreeRTOS headers in sys_arch.c only. + * FreeRTOS uses pointers as object types. We use wrapper structs instead of + * void pointers directly to get a tiny bit of type safety. + */ + +void sys_arch_msleep(u32_t delay_ms); +#define sys_msleep(ms) sys_arch_msleep(ms) + +#if SYS_LIGHTWEIGHT_PROT +typedef u32_t sys_prot_t; +#endif /* SYS_LIGHTWEIGHT_PROT */ + +#if !LWIP_COMPAT_MUTEX +struct _sys_mut { + void *mut; +}; +typedef struct _sys_mut sys_mutex_t; +#define sys_mutex_valid_val(mutex) ((mutex).mut != NULL) +#define sys_mutex_valid(mutex) (((mutex) != NULL) && sys_mutex_valid_val(*(mutex))) +#define sys_mutex_set_invalid(mutex) ((mutex)->mut = NULL) +#endif /* !LWIP_COMPAT_MUTEX */ + +struct _sys_sem { + void *sem; +}; +typedef struct _sys_sem sys_sem_t; +#define sys_sem_valid_val(sema) ((sema).sem != NULL) +#define sys_sem_valid(sema) (((sema) != NULL) && sys_sem_valid_val(*(sema))) +#define sys_sem_set_invalid(sema) ((sema)->sem = NULL) + +struct _sys_mbox { + void *mbx; +}; +typedef struct _sys_mbox sys_mbox_t; +#define sys_mbox_valid_val(mbox) ((mbox).mbx != NULL) +#define sys_mbox_valid(mbox) (((mbox) != NULL) && sys_mbox_valid_val(*(mbox))) +#define sys_mbox_set_invalid(mbox) ((mbox)->mbx = NULL) + +struct _sys_thread { + void *thread_handle; +}; +typedef struct _sys_thread sys_thread_t; + +#if LWIP_NETCONN_SEM_PER_THREAD +sys_sem_t* sys_arch_netconn_sem_get(void); +void sys_arch_netconn_sem_alloc(void); +void sys_arch_netconn_sem_free(void); +#define LWIP_NETCONN_THREAD_SEM_GET() sys_arch_netconn_sem_get() +#define LWIP_NETCONN_THREAD_SEM_ALLOC() sys_arch_netconn_sem_alloc() +#define LWIP_NETCONN_THREAD_SEM_FREE() sys_arch_netconn_sem_free() +#endif /* LWIP_NETCONN_SEM_PER_THREAD */ + +#endif /* LWIP_ARCH_SYS_ARCH_H */ diff --git a/middleware/lwip/contrib/ports/freertos/sys_arch.c b/middleware/lwip/contrib/ports/freertos/sys_arch.c new file mode 100644 index 0000000..68a427f --- /dev/null +++ b/middleware/lwip/contrib/ports/freertos/sys_arch.c @@ -0,0 +1,606 @@ +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +/* lwIP includes. */ +#include "lwip/debug.h" +#include "lwip/def.h" +#include "lwip/sys.h" +#include "lwip/mem.h" +#include "lwip/stats.h" +#include "FreeRTOS.h" +#include "semphr.h" +#include "task.h" + +/** Set this to 1 if you want the stack size passed to sys_thread_new() to be + * interpreted as number of stack words (FreeRTOS-like). + * Default is that they are interpreted as byte count (lwIP-like). + */ +#ifndef LWIP_FREERTOS_THREAD_STACKSIZE_IS_STACKWORDS +#define LWIP_FREERTOS_THREAD_STACKSIZE_IS_STACKWORDS 0 +#endif + +/** Set this to 1 to use a mutex for SYS_ARCH_PROTECT() critical regions. + * Default is 0 and locks interrupts/scheduler for SYS_ARCH_PROTECT(). + */ +#ifndef LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX +#define LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX 0 +#endif + +/** Set this to 1 to include a sanity check that SYS_ARCH_PROTECT() and + * SYS_ARCH_UNPROTECT() are called matching. + */ +#ifndef LWIP_FREERTOS_SYS_ARCH_PROTECT_SANITY_CHECK +#define LWIP_FREERTOS_SYS_ARCH_PROTECT_SANITY_CHECK 0 +#endif + +/** Set this to 1 to let sys_mbox_free check that queues are empty when freed */ +#ifndef LWIP_FREERTOS_CHECK_QUEUE_EMPTY_ON_FREE +#define LWIP_FREERTOS_CHECK_QUEUE_EMPTY_ON_FREE 0 +#endif + +/** Set this to 1 to enable core locking check functions in this port. + * For this to work, you'll have to define LWIP_ASSERT_CORE_LOCKED() + * and LWIP_MARK_TCPIP_THREAD() correctly in your lwipopts.h! */ +#ifndef LWIP_FREERTOS_CHECK_CORE_LOCKING +#define LWIP_FREERTOS_CHECK_CORE_LOCKING 0 +#endif + +/** Set this to 0 to implement sys_now() yourself, e.g. using a hw timer. + * Default is 1, where FreeRTOS ticks are used to calculate back to ms. + */ +#ifndef LWIP_FREERTOS_SYS_NOW_FROM_FREERTOS +#define LWIP_FREERTOS_SYS_NOW_FROM_FREERTOS 1 +#endif + +#if !configSUPPORT_DYNAMIC_ALLOCATION +# error "lwIP FreeRTOS port requires configSUPPORT_DYNAMIC_ALLOCATION" +#endif +#if !INCLUDE_vTaskDelay +# error "lwIP FreeRTOS port requires INCLUDE_vTaskDelay" +#endif +#if !INCLUDE_vTaskSuspend +# error "lwIP FreeRTOS port requires INCLUDE_vTaskSuspend" +#endif +#if LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX || !LWIP_COMPAT_MUTEX +#if !configUSE_MUTEXES +# error "lwIP FreeRTOS port requires configUSE_MUTEXES" +#endif +#endif + +#if SYS_LIGHTWEIGHT_PROT && LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX +static SemaphoreHandle_t sys_arch_protect_mutex; +#endif +#if SYS_LIGHTWEIGHT_PROT && LWIP_FREERTOS_SYS_ARCH_PROTECT_SANITY_CHECK +static sys_prot_t sys_arch_protect_nesting; +#endif + +/* Initialize this module (see description in sys.h) */ +void +sys_init(void) +{ +#if SYS_LIGHTWEIGHT_PROT && LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX + /* initialize sys_arch_protect global mutex */ + sys_arch_protect_mutex = xSemaphoreCreateRecursiveMutex(); + LWIP_ASSERT("failed to create sys_arch_protect mutex", + sys_arch_protect_mutex != NULL); +#endif /* SYS_LIGHTWEIGHT_PROT && LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX */ +} + +#if configUSE_16_BIT_TICKS == 1 +#error This port requires 32 bit ticks or timer overflow will fail +#endif + +#if LWIP_FREERTOS_SYS_NOW_FROM_FREERTOS +u32_t +sys_now(void) +{ + return xTaskGetTickCount() * portTICK_PERIOD_MS; +} +#endif + +u32_t +sys_jiffies(void) +{ + return xTaskGetTickCount(); +} + +#if SYS_LIGHTWEIGHT_PROT + +sys_prot_t +sys_arch_protect(void) +{ +#if LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX + BaseType_t ret; + LWIP_ASSERT("sys_arch_protect_mutex != NULL", sys_arch_protect_mutex != NULL); + + ret = xSemaphoreTakeRecursive(sys_arch_protect_mutex, portMAX_DELAY); + LWIP_ASSERT("sys_arch_protect failed to take the mutex", ret == pdTRUE); +#else /* LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX */ + taskENTER_CRITICAL(); +#endif /* LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX */ +#if LWIP_FREERTOS_SYS_ARCH_PROTECT_SANITY_CHECK + { + /* every nested call to sys_arch_protect() returns an increased number */ + sys_prot_t ret = sys_arch_protect_nesting; + sys_arch_protect_nesting++; + LWIP_ASSERT("sys_arch_protect overflow", sys_arch_protect_nesting > ret); + return ret; + } +#else + return 1; +#endif +} + +void +sys_arch_unprotect(sys_prot_t pval) +{ +#if LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX + BaseType_t ret; +#endif +#if LWIP_FREERTOS_SYS_ARCH_PROTECT_SANITY_CHECK + LWIP_ASSERT("unexpected sys_arch_protect_nesting", sys_arch_protect_nesting > 0); + sys_arch_protect_nesting--; + LWIP_ASSERT("unexpected sys_arch_protect_nesting", sys_arch_protect_nesting == pval); +#endif + +#if LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX + LWIP_ASSERT("sys_arch_protect_mutex != NULL", sys_arch_protect_mutex != NULL); + + ret = xSemaphoreGiveRecursive(sys_arch_protect_mutex); + LWIP_ASSERT("sys_arch_unprotect failed to give the mutex", ret == pdTRUE); +#else /* LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX */ + taskEXIT_CRITICAL(); +#endif /* LWIP_FREERTOS_SYS_ARCH_PROTECT_USES_MUTEX */ + LWIP_UNUSED_ARG(pval); +} + +#endif /* SYS_LIGHTWEIGHT_PROT */ + +void +sys_arch_msleep(u32_t delay_ms) +{ + TickType_t delay_ticks = delay_ms / portTICK_RATE_MS; + vTaskDelay(delay_ticks); +} + +#if !LWIP_COMPAT_MUTEX + +/* Create a new mutex*/ +err_t +sys_mutex_new(sys_mutex_t *mutex) +{ + LWIP_ASSERT("mutex != NULL", mutex != NULL); + + mutex->mut = xSemaphoreCreateRecursiveMutex(); + if(mutex->mut == NULL) { + SYS_STATS_INC(mutex.err); + return ERR_MEM; + } + SYS_STATS_INC_USED(mutex); + return ERR_OK; +} + +void +sys_mutex_lock(sys_mutex_t *mutex) +{ + BaseType_t ret; + LWIP_ASSERT("mutex != NULL", mutex != NULL); + LWIP_ASSERT("mutex->mut != NULL", mutex->mut != NULL); + + ret = xSemaphoreTakeRecursive(mutex->mut, portMAX_DELAY); + LWIP_ASSERT("failed to take the mutex", ret == pdTRUE); +} + +void +sys_mutex_unlock(sys_mutex_t *mutex) +{ + BaseType_t ret; + LWIP_ASSERT("mutex != NULL", mutex != NULL); + LWIP_ASSERT("mutex->mut != NULL", mutex->mut != NULL); + + ret = xSemaphoreGiveRecursive(mutex->mut); + LWIP_ASSERT("failed to give the mutex", ret == pdTRUE); +} + +void +sys_mutex_free(sys_mutex_t *mutex) +{ + LWIP_ASSERT("mutex != NULL", mutex != NULL); + LWIP_ASSERT("mutex->mut != NULL", mutex->mut != NULL); + + SYS_STATS_DEC(mutex.used); + vSemaphoreDelete(mutex->mut); + mutex->mut = NULL; +} + +#endif /* !LWIP_COMPAT_MUTEX */ + +err_t +sys_sem_new(sys_sem_t *sem, u8_t initial_count) +{ + LWIP_ASSERT("sem != NULL", sem != NULL); + LWIP_ASSERT("initial_count invalid (not 0 or 1)", + (initial_count == 0) || (initial_count == 1)); + + sem->sem = xSemaphoreCreateBinary(); + if(sem->sem == NULL) { + SYS_STATS_INC(sem.err); + return ERR_MEM; + } + SYS_STATS_INC_USED(sem); + + if(initial_count == 1) { + BaseType_t ret = xSemaphoreGive(sem->sem); + LWIP_ASSERT("sys_sem_new: initial give failed", ret == pdTRUE); + } + return ERR_OK; +} + +void +sys_sem_signal(sys_sem_t *sem) +{ + BaseType_t ret; + LWIP_ASSERT("sem != NULL", sem != NULL); + LWIP_ASSERT("sem->sem != NULL", sem->sem != NULL); + + ret = xSemaphoreGive(sem->sem); + /* queue full is OK, this is a signal only... */ + LWIP_ASSERT("sys_sem_signal: sane return value", + (ret == pdTRUE) || (ret == errQUEUE_FULL)); +} + +u32_t +sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout_ms) +{ + BaseType_t ret; + LWIP_ASSERT("sem != NULL", sem != NULL); + LWIP_ASSERT("sem->sem != NULL", sem->sem != NULL); + + if(!timeout_ms) { + /* wait infinite */ + ret = xSemaphoreTake(sem->sem, portMAX_DELAY); + LWIP_ASSERT("taking semaphore failed", ret == pdTRUE); + } else { + TickType_t timeout_ticks = timeout_ms / portTICK_RATE_MS; + ret = xSemaphoreTake(sem->sem, timeout_ticks); + if (ret == errQUEUE_EMPTY) { + /* timed out */ + return SYS_ARCH_TIMEOUT; + } + LWIP_ASSERT("taking semaphore failed", ret == pdTRUE); + } + + /* Old versions of lwIP required us to return the time waited. + This is not the case any more. Just returning != SYS_ARCH_TIMEOUT + here is enough. */ + return 1; +} + +void +sys_sem_free(sys_sem_t *sem) +{ + LWIP_ASSERT("sem != NULL", sem != NULL); + LWIP_ASSERT("sem->sem != NULL", sem->sem != NULL); + + SYS_STATS_DEC(sem.used); + vSemaphoreDelete(sem->sem); + sem->sem = NULL; +} + +err_t +sys_mbox_new(sys_mbox_t *mbox, int size) +{ + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("size > 0", size > 0); + + mbox->mbx = xQueueCreate((UBaseType_t)size, sizeof(void *)); + if(mbox->mbx == NULL) { + SYS_STATS_INC(mbox.err); + return ERR_MEM; + } + SYS_STATS_INC_USED(mbox); + return ERR_OK; +} + +void +sys_mbox_post(sys_mbox_t *mbox, void *msg) +{ + BaseType_t ret; + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("mbox->mbx != NULL", mbox->mbx != NULL); + + ret = xQueueSendToBack(mbox->mbx, &msg, portMAX_DELAY); + LWIP_ASSERT("mbox post failed", ret == pdTRUE); +} + +err_t +sys_mbox_trypost(sys_mbox_t *mbox, void *msg) +{ + BaseType_t ret; + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("mbox->mbx != NULL", mbox->mbx != NULL); + + ret = xQueueSendToBack(mbox->mbx, &msg, 0); + if (ret == pdTRUE) { + return ERR_OK; + } else { + LWIP_ASSERT("mbox trypost failed", ret == errQUEUE_FULL); + SYS_STATS_INC(mbox.err); + return ERR_MEM; + } +} + +err_t +sys_mbox_trypost_fromisr(sys_mbox_t *mbox, void *msg) +{ + BaseType_t ret; + BaseType_t xHigherPriorityTaskWoken = pdFALSE; + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("mbox->mbx != NULL", mbox->mbx != NULL); + + ret = xQueueSendToBackFromISR(mbox->mbx, &msg, &xHigherPriorityTaskWoken); + if (ret == pdTRUE) { + if (xHigherPriorityTaskWoken == pdTRUE) { + return ERR_NEED_SCHED; + } + return ERR_OK; + } else { + LWIP_ASSERT("mbox trypost failed", ret == errQUEUE_FULL); + SYS_STATS_INC(mbox.err); + return ERR_MEM; + } +} + +u32_t +sys_arch_mbox_fetch(sys_mbox_t *mbox, void **msg, u32_t timeout_ms) +{ + BaseType_t ret; + void *msg_dummy; + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("mbox->mbx != NULL", mbox->mbx != NULL); + + if (!msg) { + msg = &msg_dummy; + } + + if (!timeout_ms) { + /* wait infinite */ + ret = xQueueReceive(mbox->mbx, &(*msg), portMAX_DELAY); + LWIP_ASSERT("mbox fetch failed", ret == pdTRUE); + } else { + TickType_t timeout_ticks = timeout_ms / portTICK_RATE_MS; + ret = xQueueReceive(mbox->mbx, &(*msg), timeout_ticks); + if (ret == errQUEUE_EMPTY) { + /* timed out */ + *msg = NULL; + return SYS_ARCH_TIMEOUT; + } + LWIP_ASSERT("mbox fetch failed", ret == pdTRUE); + } + + /* Old versions of lwIP required us to return the time waited. + This is not the case any more. Just returning != SYS_ARCH_TIMEOUT + here is enough. */ + return 1; +} + +u32_t +sys_arch_mbox_tryfetch(sys_mbox_t *mbox, void **msg) +{ + BaseType_t ret; + void *msg_dummy; + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("mbox->mbx != NULL", mbox->mbx != NULL); + + if (!msg) { + msg = &msg_dummy; + } + + ret = xQueueReceive(mbox->mbx, &(*msg), 0); + if (ret == errQUEUE_EMPTY) { + *msg = NULL; + return SYS_MBOX_EMPTY; + } + LWIP_ASSERT("mbox fetch failed", ret == pdTRUE); + + return 0; +} + +void +sys_mbox_free(sys_mbox_t *mbox) +{ + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("mbox->mbx != NULL", mbox->mbx != NULL); + +#if LWIP_FREERTOS_CHECK_QUEUE_EMPTY_ON_FREE + { + UBaseType_t msgs_waiting = uxQueueMessagesWaiting(mbox->mbx); + LWIP_ASSERT("mbox quence not empty", msgs_waiting == 0); + + if (msgs_waiting != 0) { + SYS_STATS_INC(mbox.err); + } + } +#endif + + vQueueDelete(mbox->mbx); + + SYS_STATS_DEC(mbox.used); +} + +sys_thread_t +sys_thread_new(const char *name, lwip_thread_fn thread, void *arg, int stacksize, int prio) +{ + TaskHandle_t rtos_task; + BaseType_t ret; + sys_thread_t lwip_thread; + size_t rtos_stacksize; + + LWIP_ASSERT("invalid stacksize", stacksize > 0); +#if LWIP_FREERTOS_THREAD_STACKSIZE_IS_STACKWORDS + rtos_stacksize = (size_t)stacksize; +#else + rtos_stacksize = (size_t)stacksize / sizeof(StackType_t); +#endif + + /* lwIP's lwip_thread_fn matches FreeRTOS' TaskFunction_t, so we can pass the + thread function without adaption here. */ + ret = xTaskCreate(thread, name, (configSTACK_DEPTH_TYPE)rtos_stacksize, arg, prio, &rtos_task); + LWIP_ASSERT("task creation failed", ret == pdTRUE); + + lwip_thread.thread_handle = rtos_task; + return lwip_thread; +} + +#if LWIP_NETCONN_SEM_PER_THREAD +#if configNUM_THREAD_LOCAL_STORAGE_POINTERS > 0 + +sys_sem_t * +sys_arch_netconn_sem_get(void) +{ + void* ret; + TaskHandle_t task = xTaskGetCurrentTaskHandle(); + LWIP_ASSERT("task != NULL", task != NULL); + + ret = pvTaskGetThreadLocalStoragePointer(task, 0); + return ret; +} + +void +sys_arch_netconn_sem_alloc(void) +{ + void *ret; + TaskHandle_t task = xTaskGetCurrentTaskHandle(); + LWIP_ASSERT("task != NULL", task != NULL); + + ret = pvTaskGetThreadLocalStoragePointer(task, 0); + if(ret == NULL) { + sys_sem_t *sem; + err_t err; + /* need to allocate the memory for this semaphore */ + sem = mem_malloc(sizeof(sys_sem_t)); + LWIP_ASSERT("sem != NULL", sem != NULL); + err = sys_sem_new(sem, 0); + LWIP_ASSERT("err == ERR_OK", err == ERR_OK); + LWIP_ASSERT("sem invalid", sys_sem_valid(sem)); + vTaskSetThreadLocalStoragePointer(task, 0, sem); + } +} + +void sys_arch_netconn_sem_free(void) +{ + void* ret; + TaskHandle_t task = xTaskGetCurrentTaskHandle(); + LWIP_ASSERT("task != NULL", task != NULL); + + ret = pvTaskGetThreadLocalStoragePointer(task, 0); + if(ret != NULL) { + sys_sem_t *sem = ret; + sys_sem_free(sem); + mem_free(sem); + vTaskSetThreadLocalStoragePointer(task, 0, NULL); + } +} + +#else /* configNUM_THREAD_LOCAL_STORAGE_POINTERS > 0 */ +#error LWIP_NETCONN_SEM_PER_THREAD needs configNUM_THREAD_LOCAL_STORAGE_POINTERS +#endif /* configNUM_THREAD_LOCAL_STORAGE_POINTERS > 0 */ + +#endif /* LWIP_NETCONN_SEM_PER_THREAD */ + +#if LWIP_FREERTOS_CHECK_CORE_LOCKING +#if LWIP_TCPIP_CORE_LOCKING + +/** Flag the core lock held. A counter for recursive locks. */ +static u8_t lwip_core_lock_count; +static TaskHandle_t lwip_core_lock_holder_thread; + +void +sys_lock_tcpip_core(void) +{ + sys_mutex_lock(&lock_tcpip_core); + if (lwip_core_lock_count == 0) { + lwip_core_lock_holder_thread = xTaskGetCurrentTaskHandle(); + } + lwip_core_lock_count++; +} + +void +sys_unlock_tcpip_core(void) +{ + lwip_core_lock_count--; + if (lwip_core_lock_count == 0) { + lwip_core_lock_holder_thread = 0; + } + sys_mutex_unlock(&lock_tcpip_core); +} + +#endif /* LWIP_TCPIP_CORE_LOCKING */ + +#if !NO_SYS +static TaskHandle_t lwip_tcpip_thread; +#endif + +void +sys_mark_tcpip_thread(void) +{ +#if !NO_SYS + lwip_tcpip_thread = xTaskGetCurrentTaskHandle(); +#endif +} + +void +sys_check_core_locking(void) +{ + /* Embedded systems should check we are NOT in an interrupt context here */ + /* E.g. core Cortex-M3/M4 ports: + configASSERT( ( portNVIC_INT_CTRL_REG & portVECTACTIVE_MASK ) == 0 ); + + Instead, we use more generic FreeRTOS functions here, which should fail from ISR: */ + taskENTER_CRITICAL(); + taskEXIT_CRITICAL(); + +#if !NO_SYS + if (lwip_tcpip_thread != 0) { + TaskHandle_t current_thread = xTaskGetCurrentTaskHandle(); + +#if LWIP_TCPIP_CORE_LOCKING + LWIP_ASSERT("Function called without core lock", + current_thread == lwip_core_lock_holder_thread && lwip_core_lock_count > 0); +#else /* LWIP_TCPIP_CORE_LOCKING */ + LWIP_ASSERT("Function called from wrong thread", current_thread == lwip_tcpip_thread); +#endif /* LWIP_TCPIP_CORE_LOCKING */ + } +#endif /* !NO_SYS */ +} + +#endif /* LWIP_FREERTOS_CHECK_CORE_LOCKING*/ diff --git a/middleware/lwip/contrib/ports/unix/Common.mk b/middleware/lwip/contrib/ports/unix/Common.mk new file mode 100644 index 0000000..f80a980 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/Common.mk @@ -0,0 +1,51 @@ +# +# Copyright (c) 2001, 2002 Swedish Institute of Computer Science. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT +# SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT +# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY +# OF SUCH DAMAGE. +# +# This file is part of the lwIP TCP/IP stack. +# +# Author: Adam Dunkels +# + +# Architecture specific files. +LWIPARCH?=$(CONTRIBDIR)/ports/unix/port +SYSARCH?=$(LWIPARCH)/sys_arch.c +ARCHFILES=$(LWIPARCH)/perf.c \ + $(SYSARCH) \ + $(LWIPARCH)/netif/tapif.c \ + $(LWIPARCH)/netif/list.c \ + $(LWIPARCH)/netif/sio.c \ + $(LWIPARCH)/netif/fifo.c + +UNIX_COMMON_MK_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST)))) +include $(UNIX_COMMON_MK_DIR)../Common.allports.mk + +LDFLAGS+=-lutil + +UNAME_S:= $(shell uname -s) +ifneq ($(UNAME_S),Darwin) +# Darwin doesn't have pthreads or POSIX real-time extensions libs +LDFLAGS+=-pthread -lrt +endif diff --git a/middleware/lwip/contrib/ports/unix/README b/middleware/lwip/contrib/ports/unix/README new file mode 100644 index 0000000..3b8f995 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/README @@ -0,0 +1,25 @@ +This port contains infrastructure and examples for running lwIP on Unix-like +operating systems (Linux, OpenBSD, cygwin). Much of this is targeted towards +testing lwIP applications. + +* port/sys_arch.c, port/perf.c, port/include/arch/: Generic platform porting, + for both states of NO_SYS. (Mapping debugging to printf, providing + sys_now & co from the system time etc.) + +* check: Runs the unit tests shipped with main lwIP on the Unix port. + +* port/netif, port/include/netif: Various network interface implementations and + their helpers, some explicitly for Unix infrastructure, some generic (but most + useful on an easy to debug system): + + * fifo: Helper for sio + + * list: Helper for unixif + + * pcapif: Network interface that replays packages from a PCAP dump file, and + discards packages sent out from it + + * sio: Mapping Unix character devices to lwIP's sio mechanisms + + * tapif: Network interface that is mapped to a tap interface (Unix user + space layer 2 network device). Uses lwIP threads. diff --git a/middleware/lwip/contrib/ports/unix/check/CMakeLists.txt b/middleware/lwip/contrib/ports/unix/check/CMakeLists.txt new file mode 100644 index 0000000..9cf8d05 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/check/CMakeLists.txt @@ -0,0 +1,61 @@ +cmake_minimum_required(VERSION 3.8) + +set (CMAKE_CONFIGURATION_TYPES "Debug;Release") + +project(lwipunittests C) + +if (NOT CMAKE_SYSTEM_NAME STREQUAL "Linux" AND NOT CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND NOT CMAKE_SYSTEM_NAME STREQUAL "GNU") + message(FATAL_ERROR "Unit test are currently only working on Linux, Darwin or Hurd") +endif() + +set(LWIP_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../../..) +if (NOT CMAKE_SYSTEM_NAME STREQUAL "GNU") + set(LWIP_USE_SANITIZERS true) +endif() +include(${LWIP_DIR}/contrib/ports/CMakeCommon.cmake) + +if(CMAKE_C_COMPILER_ID STREQUAL "Clang") + # check.h causes 'error: token pasting of ',' and __VA_ARGS__ is a GNU extension' with clang 9.0.0 + list(LWIP_COMPILER_FLAGS APPEND -Wno-gnu-zero-variadic-macro-arguments) +endif() + +set (LWIP_DEFINITIONS -DLWIP_DEBUG -DLWIP_NOASSERT_ON_ERROR) +set (LWIP_INCLUDE_DIRS + "${LWIP_DIR}/test/unit" + "${LWIP_DIR}/src/include" + "${LWIP_CONTRIB_DIR}/" + "${LWIP_CONTRIB_DIR}/ports/unix/port/include" + "${CMAKE_CURRENT_SOURCE_DIR}/" +) + +include(${LWIP_CONTRIB_DIR}/ports/unix/Filelists.cmake) +include(${LWIP_DIR}/src/Filelists.cmake) +include(${LWIP_DIR}/test/unit/Filelists.cmake) + +add_executable(lwip_unittests ${LWIP_TESTFILES}) +target_include_directories(lwip_unittests PRIVATE ${LWIP_INCLUDE_DIRS}) +target_compile_options(lwip_unittests PRIVATE ${LWIP_COMPILER_FLAGS}) +target_compile_definitions(lwip_unittests PRIVATE ${LWIP_DEFINITIONS} ${LWIP_MBEDTLS_DEFINITIONS}) + +find_library(LIBCHECK check) +find_library(LIBM m) +target_link_libraries(lwip_unittests ${LWIP_SANITIZER_LIBS} lwipallapps lwipcore ${LIBCHECK} ${LIBM}) + +if (NOT CMAKE_SYSTEM_NAME STREQUAL "Darwin") + # check installed via brew on Darwin doesn't have a separate subunit library (must be statically linked) + find_library(LIBSUBUNIT subunit) + target_link_libraries(lwip_unittests ${LIBSUBUNIT}) +endif() + +if (CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "GNU") + find_library(LIBUTIL util) + find_library(LIBPTHREAD pthread) + find_library(LIBRT rt) + target_link_libraries(lwip_unittests ${LIBUTIL} ${LIBPTHREAD} ${LIBRT}) +endif() + +if (CMAKE_SYSTEM_NAME STREQUAL "Darwin") + # Darwin doesn't have pthreads or POSIX real-time extensions libs + find_library(LIBUTIL util) + target_link_libraries(lwip_unittests ${LIBUTIL}) +endif() diff --git a/middleware/lwip/contrib/ports/unix/check/Makefile b/middleware/lwip/contrib/ports/unix/check/Makefile new file mode 100644 index 0000000..01a6d05 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/check/Makefile @@ -0,0 +1,80 @@ +# +# Copyright (c) 2001, 2002 Swedish Institute of Computer Science. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT +# SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT +# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY +# OF SUCH DAMAGE. +# +# This file is part of the lwIP TCP/IP stack. +# +# Author: Adam Dunkels +# + +all compile: lwip_unittests +.PHONY: all clean check + +LWIPDIR=../../../../src + +# The include path to sys_arch.h and lwipopts.h must be first, so this must be before Common.mk +CFLAGS=-DLWIP_NOASSERT_ON_ERROR -I/usr/include/check -I$(LWIPDIR)/../test/unit + +ifeq (clang,$(findstring clang,$(CC))) +# check.h causes 'error: token pasting of ',' and __VA_ARGS__ is a GNU extension' with clang 9.0.0 +CFLAGS+=-Wno-gnu-zero-variadic-macro-arguments +endif + +# Prevent compiling sys_arch.c of unix port because unit test provide their own port +SYSARCH?= +include ../Common.mk + +LDFLAGS:=-lcheck -lm $(LDFLAGS) + +ifneq ($(UNAME_S),Darwin) +# check installed via brew on Darwin doesn't have a separate subunit library (must be statically linked) +LDFLAGS+=-lsubunit +endif + +TESTDIR=$(LWIPDIR)/../test/unit +include $(TESTDIR)/Filelists.mk +TESTOBJS=$(notdir $(TESTFILES:.c=.o)) + +clean: + @rm -f *.o $(LWIPLIBCOMMON) $(APPLIB) lwip_unittests *.s .depend* *.core core lwip_unittests.xml + +depend dep: .depend + +include .depend + +.depend: $(LWIPFILES) $(APPFILES) $(TESTFILES) + $(CCDEP) $(CFLAGS) -MM $^ > .depend || rm -f .depend + +ifneq ($(UNAME_S),Darwin) +# clang on Darwin doesn't support --start-group +lwip_unittests: .depend $(TESTOBJS) $(LWIPLIBCOMMON) $(APPLIB) + $(CC) $(CFLAGS) -o lwip_unittests $(TESTOBJS) -Wl,--start-group $(LWIPLIBCOMMON) $(APPLIB) $(LDFLAGS) -Wl,--end-group +else +lwip_unittests: .depend $(TESTOBJS) $(LWIPLIBCOMMON) $(APPLIB) + $(CC) $(CFLAGS) -o lwip_unittests $(TESTOBJS) $(LWIPLIBCOMMON) $(APPLIB) $(LDFLAGS) +endif + +check: lwip_unittests + @./lwip_unittests diff --git a/middleware/lwip/contrib/ports/unix/check/README b/middleware/lwip/contrib/ports/unix/check/README new file mode 100644 index 0000000..3d67866 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/check/README @@ -0,0 +1,8 @@ + +Helper files to run lwIP unit tests on unix-like systems. + +1. Install the check library, through a package manager or from http://check.sourceforge.net/ +2. Put the lwip code in a directory called 'lwip' +3. Run `make check` +4. Make sure all tests pass + diff --git a/middleware/lwip/contrib/ports/unix/check/config.h b/middleware/lwip/contrib/ports/unix/check/config.h new file mode 100644 index 0000000..0d84b36 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/check/config.h @@ -0,0 +1,2 @@ +/* Enable this to simplify debugging */ +/* #define LWIP_UNITTESTS_NOFORK */ diff --git a/middleware/lwip/contrib/ports/unix/example_app/CMakeLists.txt b/middleware/lwip/contrib/ports/unix/example_app/CMakeLists.txt new file mode 100644 index 0000000..c5e9430 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/example_app/CMakeLists.txt @@ -0,0 +1,23 @@ +include(${LWIP_DIR}/contrib/ports/CMakeCommon.cmake) + +set (LWIP_INCLUDE_DIRS + "${LWIP_DIR}/src/include" + "${LWIP_DIR}/contrib/" + "${LWIP_DIR}/contrib/ports/unix/port/include" + "${LWIP_DIR}/contrib/examples/example_app" +) + +include(${LWIP_DIR}/src/Filelists.cmake) +include(${LWIP_DIR}/contrib/Filelists.cmake) +include(${LWIP_DIR}/contrib/ports/unix/Filelists.cmake) + +add_executable(example_app ${LWIP_DIR}/contrib/examples/example_app/test.c default_netif.c) +target_include_directories(example_app PRIVATE ${LWIP_INCLUDE_DIRS}) +target_compile_options(example_app PRIVATE ${LWIP_COMPILER_FLAGS}) +target_compile_definitions(example_app PRIVATE ${LWIP_DEFINITIONS} ${LWIP_MBEDTLS_DEFINITIONS}) +target_link_libraries(example_app ${LWIP_SANITIZER_LIBS} lwipcontribexamples lwipcontribapps lwipcontribaddons lwipallapps lwipcontribportunix lwipcore lwipmbedtls) + +add_executable(makefsdata ${lwipmakefsdata_SRCS}) +target_compile_options(makefsdata PRIVATE ${LWIP_COMPILER_FLAGS}) +target_include_directories(makefsdata PRIVATE ${LWIP_INCLUDE_DIRS}) +target_link_libraries(makefsdata ${LWIP_SANITIZER_LIBS}) diff --git a/middleware/lwip/contrib/ports/unix/example_app/Makefile b/middleware/lwip/contrib/ports/unix/example_app/Makefile new file mode 100644 index 0000000..38aaba1 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/example_app/Makefile @@ -0,0 +1,60 @@ +# +# Copyright (c) 2001, 2002 Swedish Institute of Computer Science. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT +# SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT +# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY +# OF SUCH DAMAGE. +# +# This file is part of the lwIP TCP/IP stack. +# +# Author: Adam Dunkels +# + +all compile: example_app makefsdata +.PHONY: all + +LWIPDIR=../../../../src + +include ../Common.mk + +CFLAGS+=-I$(CONTRIBDIR)/examples/example_app + +TESTFLAGS?= +CFLAGS+=$(TESTFLAGS) + +MAKEFSDATAOBJS=$(notdir $(MAKEFSDATAFILES:.c=.o)) + +clean: + rm -f *.o $(LWIPLIBCOMMON) $(APPLIB) example_app makefsdata *.s .depend* *.core core + +depend dep: .depend + +include .depend + +.depend: $(CONTRIBDIR)/examples/example_app/test.c default_netif.c $(LWIPFILES) $(APPFILES) $(MAKEFSDATAFILES) + $(CCDEP) $(CFLAGS) -MM $^ > .depend || rm -f .depend + +example_app: .depend $(LWIPLIBCOMMON) $(APPLIB) default_netif.o test.o + $(CC) $(CFLAGS) -o example_app test.o default_netif.o -Wl,--start-group $(APPLIB) $(LWIPLIBCOMMON) -Wl,--end-group $(LDFLAGS) + +makefsdata: .depend $(MAKEFSDATAOBJS) + $(CC) $(CFLAGS) -o makefsdata $(MAKEFSDATAOBJS) diff --git a/middleware/lwip/contrib/ports/unix/example_app/default_netif.c b/middleware/lwip/contrib/ports/unix/example_app/default_netif.c new file mode 100644 index 0000000..4c7eb6a --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/example_app/default_netif.c @@ -0,0 +1,68 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#include "lwip/netif.h" +#include "lwip/ip_addr.h" +#include "lwip/tcpip.h" +#include "netif/tapif.h" +#include "examples/example_app/default_netif.h" + +static struct netif netif; + +#if LWIP_IPV4 +#define NETIF_ADDRS ipaddr, netmask, gw, +void init_default_netif(const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw) +#else +#define NETIF_ADDRS +void init_default_netif(void) +#endif +{ +#if NO_SYS +netif_add(&netif, NETIF_ADDRS NULL, tapif_init, netif_input); +#else + netif_add(&netif, NETIF_ADDRS NULL, tapif_init, tcpip_input); +#endif + netif_set_default(&netif); +} + +void +default_netif_poll(void) +{ + tapif_poll(&netif); +} + +void +default_netif_shutdown(void) +{ +} diff --git a/middleware/lwip/contrib/ports/unix/example_app/iteropts.sh b/middleware/lwip/contrib/ports/unix/example_app/iteropts.sh new file mode 100644 index 0000000..05ec031 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/example_app/iteropts.sh @@ -0,0 +1,34 @@ +#!/bin/bash + +LOGFILE=iteropts.log +EXAPPDIR=../../../examples/example_app +RETVAL=0 + +pushd `dirname "$0"` +pwd +echo Starting Iteropts run >> $LOGFILE +for f in $EXAPPDIR/test_configs/*.h +do + echo Cleaning... + make clean > /dev/null + BUILDLOG=$(basename "$f" ".h").log + echo testing $f + echo testing $f >> $LOGFILE + rm $EXAPPDIR/lwipopts_test.h + # cat the file to update its timestamp + cat $f > $EXAPPDIR/lwipopts_test.h + make TESTFLAGS="-DLWIP_OPTTEST_FILE -Wno-documentation" -j 4 1> $BUILDLOG 2>&1 + ERR=$? + if [ $ERR != 0 ]; then + cat $BUILDLOG + echo file $f failed with $ERR >> $LOGFILE + echo ++++++++ $f FAILED +++++++ + RETVAL=1 + fi + echo test $f done >> $LOGFILE +done +echo done, cleaning +make clean > /dev/null +popd +echo Exit value: $RETVAL +exit $RETVAL diff --git a/middleware/lwip/contrib/ports/unix/lib/CMakeLists.txt b/middleware/lwip/contrib/ports/unix/lib/CMakeLists.txt new file mode 100644 index 0000000..93d17bd --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/lib/CMakeLists.txt @@ -0,0 +1,32 @@ +cmake_minimum_required(VERSION 3.8) + +project(lwip C) + +set (BUILD_SHARED_LIBS ON) + +if (NOT CMAKE_SYSTEM_NAME STREQUAL "Linux" AND NOT CMAKE_SYSTEM_NAME STREQUAL "GNU") + message(FATAL_ERROR "Lwip shared library is only working on Linux or the Hurd") +endif() + +set(LWIP_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../../..) +include(${LWIP_DIR}/contrib/ports/CMakeCommon.cmake) + +set (LWIP_DEFINITIONS -DLWIP_DEBUG) +set (LWIP_INCLUDE_DIRS + "${LWIP_DIR}/src/include" + "${LWIP_CONTRIB_DIR}/" + "${LWIP_CONTRIB_DIR}/ports/unix/port/include" + "${CMAKE_CURRENT_SOURCE_DIR}/" +) + +include(${LWIP_CONTRIB_DIR}/ports/unix/Filelists.cmake) +include(${LWIP_DIR}/src/Filelists.cmake) + +add_library(lwip ${lwipnoapps_SRCS} ${lwipcontribportunix_SRCS} ${lwipcontribportunixnetifs_SRCS}) +target_compile_options(lwip PRIVATE ${LWIP_COMPILER_FLAGS}) +target_compile_definitions(lwip PRIVATE ${LWIP_DEFINITIONS} ${LWIP_MBEDTLS_DEFINITIONS}) +target_include_directories(lwip PRIVATE ${LWIP_INCLUDE_DIRS} ${LWIP_MBEDTLS_INCLUDE_DIRS}) +target_link_libraries(lwip ${LWIP_SANITIZER_LIBS}) + +find_library(LIBPTHREAD pthread) +target_link_libraries(lwip ${LIBPTHREAD}) diff --git a/middleware/lwip/contrib/ports/unix/lib/README b/middleware/lwip/contrib/ports/unix/lib/README new file mode 100644 index 0000000..3e6d0b1 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/lib/README @@ -0,0 +1,28 @@ +This directory contains an example of how to compile lwIP as a shared library +on Linux. + +Some brief instructions: + +* Compile the code: + + > mkdir build + > cd build + > cmake .. + > make clean all + + This should produce liblwip.so. This is the shared library. + +* Link an application against the shared library + + If you're using gcc you can do this by including -llwip in your link command. + +* Run your application + + Ensure that LD_LIBRARY_PATH includes the directory that contains liblwip.so + (ie. this directory) + + +If you are unsure about shared libraries and libraries on linux in +general, you might find this HOWTO useful: + + diff --git a/middleware/lwip/contrib/ports/unix/lib/lwipopts.h b/middleware/lwip/contrib/ports/unix/lib/lwipopts.h new file mode 100644 index 0000000..231fc77 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/lib/lwipopts.h @@ -0,0 +1,436 @@ +/** + * @file + * + * lwIP Options Configuration + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_LWIPOPTS_H +#define LWIP_LWIPOPTS_H + +/* + * Include user defined options first. Anything not defined in these files + * will be set to standard values. Override anything you don't like! + */ +#include "lwipopts.h" +#include "lwip/debug.h" + +/* + ----------------------------------------------- + ---------- Platform specific locking ---------- + ----------------------------------------------- +*/ + +/** + * SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain + * critical regions during buffer allocation, deallocation and memory + * allocation and deallocation. + */ +#define SYS_LIGHTWEIGHT_PROT 0 + +/** + * NO_SYS==1: Provides VERY minimal functionality. Otherwise, + * use lwIP facilities. + */ +#define NO_SYS 0 + +/* + ------------------------------------ + ---------- Memory options ---------- + ------------------------------------ +*/ + +/** + * MEM_ALIGNMENT: should be set to the alignment of the CPU + * 4 byte alignment -> #define MEM_ALIGNMENT 4 + * 2 byte alignment -> #define MEM_ALIGNMENT 2 + */ +#define MEM_ALIGNMENT 1U + +/** + * MEM_SIZE: the size of the heap memory. If the application will send + * a lot of data that needs to be copied, this should be set high. + */ +#define MEM_SIZE 1600 + +/* + ------------------------------------------------ + ---------- Internal Memory Pool Sizes ---------- + ------------------------------------------------ +*/ +/** + * MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF). + * If the application sends a lot of data out of ROM (or other static memory), + * this should be set high. + */ +#define MEMP_NUM_PBUF 16 + +/** + * MEMP_NUM_RAW_PCB: Number of raw connection PCBs + * (requires the LWIP_RAW option) + */ +#define MEMP_NUM_RAW_PCB 4 + +/** + * MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One + * per active UDP "connection". + * (requires the LWIP_UDP option) + */ +#define MEMP_NUM_UDP_PCB 4 + +/** + * MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections. + * (requires the LWIP_TCP option) + */ +#define MEMP_NUM_TCP_PCB 4 + +/** + * MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections. + * (requires the LWIP_TCP option) + */ +#define MEMP_NUM_TCP_PCB_LISTEN 4 + +/** + * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments. + * (requires the LWIP_TCP option) + */ +#define MEMP_NUM_TCP_SEG 16 + +/** + * MEMP_NUM_REASSDATA: the number of simultaneously IP packets queued for + * reassembly (whole packets, not fragments!) + */ +#define MEMP_NUM_REASSDATA 1 + +/** + * MEMP_NUM_ARP_QUEUE: the number of simulateously queued outgoing + * packets (pbufs) that are waiting for an ARP request (to resolve + * their destination address) to finish. + * (requires the ARP_QUEUEING option) + */ +#define MEMP_NUM_ARP_QUEUE 2 + +/** + * MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts. + * (requires NO_SYS==0) + */ +#define MEMP_NUM_SYS_TIMEOUT 8 + +/** + * MEMP_NUM_NETBUF: the number of struct netbufs. + * (only needed if you use the sequential API, like api_lib.c) + */ +#define MEMP_NUM_NETBUF 2 + +/** + * MEMP_NUM_NETCONN: the number of struct netconns. + * (only needed if you use the sequential API, like api_lib.c) + */ +#define MEMP_NUM_NETCONN 32 + +/** + * MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used + * for callback/timeout API communication. + * (only needed if you use tcpip.c) + */ +#define MEMP_NUM_TCPIP_MSG_API 8 + +/** + * MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used + * for incoming packets. + * (only needed if you use tcpip.c) + */ +#define MEMP_NUM_TCPIP_MSG_INPKT 8 + +/** + * PBUF_POOL_SIZE: the number of buffers in the pbuf pool. + */ +#define PBUF_POOL_SIZE 8 + +/* + --------------------------------- + ---------- ARP options ---------- + --------------------------------- +*/ +/** + * LWIP_ARP==1: Enable ARP functionality. + */ +#define LWIP_ARP 1 + +/* + -------------------------------- + ---------- IP options ---------- + -------------------------------- +*/ +/** + * IP_FORWARD==1: Enables the ability to forward IP packets across network + * interfaces. If you are going to run lwIP on a device with only one network + * interface, define this to 0. + */ +#define IP_FORWARD 0 + +/** + * IP_OPTIONS: Defines the behavior for IP options. + * IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped. + * IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed). + */ +#define IP_OPTIONS_ALLOWED 1 + +/** + * IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that + * this option does not affect outgoing packet sizes, which can be controlled + * via IP_FRAG. + */ +#define IP_REASSEMBLY 1 + +/** + * IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note + * that this option does not affect incoming packet sizes, which can be + * controlled via IP_REASSEMBLY. + */ +#define IP_FRAG 1 + +/** + * IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally) + * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived + * in this time, the whole packet is discarded. + */ +#define IP_REASS_MAXAGE 3 + +/** + * IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled. + * Since the received pbufs are enqueued, be sure to configure + * PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive + * packets even if the maximum amount of fragments is enqueued for reassembly! + */ +#define IP_REASS_MAX_PBUFS 4 + +/** + * IP_FRAG_USES_STATIC_BUF==1: Use a static MTU-sized buffer for IP + * fragmentation. Otherwise pbufs are allocated and reference the original + * packet data to be fragmented. +*/ +#define IP_FRAG_USES_STATIC_BUF 0 + +/** + * IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers. + */ +#define IP_DEFAULT_TTL 255 + +/* + ---------------------------------- + ---------- ICMP options ---------- + ---------------------------------- +*/ +/** + * LWIP_ICMP==1: Enable ICMP module inside the IP stack. + * Be careful, disable that make your product non-compliant to RFC1122 + */ +#define LWIP_ICMP 1 + +/* + --------------------------------- + ---------- RAW options ---------- + --------------------------------- +*/ +/** + * LWIP_RAW==1: Enable application layer to hook into the IP layer itself. + */ +#define LWIP_RAW 1 + +/* + ---------------------------------- + ---------- DHCP options ---------- + ---------------------------------- +*/ +/** + * LWIP_DHCP==1: Enable DHCP module. + */ +#define LWIP_DHCP 0 + + +/* + ------------------------------------ + ---------- AUTOIP options ---------- + ------------------------------------ +*/ +/** + * LWIP_AUTOIP==1: Enable AUTOIP module. + */ +#define LWIP_AUTOIP 0 + +/* + ---------------------------------- + ---------- SNMP options ---------- + ---------------------------------- +*/ +/** + * LWIP_SNMP==1: Turn on SNMP module. UDP must be available for SNMP + * transport. + */ +#define LWIP_SNMP 0 + +/* + ---------------------------------- + ---------- IGMP options ---------- + ---------------------------------- +*/ +/** + * LWIP_IGMP==1: Turn on IGMP module. + */ +#define LWIP_IGMP 0 + +/* + ---------------------------------- + ---------- DNS options ----------- + ---------------------------------- +*/ +/** + * LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS + * transport. + */ +#define LWIP_DNS 0 + +/* + --------------------------------- + ---------- UDP options ---------- + --------------------------------- +*/ +/** + * LWIP_UDP==1: Turn on UDP. + */ +#define LWIP_UDP 1 + +/* + --------------------------------- + ---------- TCP options ---------- + --------------------------------- +*/ +/** + * LWIP_TCP==1: Turn on TCP. + */ +#define LWIP_TCP 1 + +#define LWIP_LISTEN_BACKLOG 0 + +/* + ---------------------------------- + ---------- Pbuf options ---------- + ---------------------------------- +*/ +/** + * PBUF_LINK_HLEN: the number of bytes that should be allocated for a + * link level header. The default is 14, the standard value for + * Ethernet. + */ +#define PBUF_LINK_HLEN 16 + +/** + * PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. The default is + * designed to accommodate single full size TCP frame in one pbuf, including + * TCP_MSS, IP header, and link header. +* + */ +#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_HLEN) + +/* + ------------------------------------ + ---------- LOOPIF options ---------- + ------------------------------------ +*/ +/** + * LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1) and loopif.c + */ +#define LWIP_HAVE_LOOPIF 0 + +/* + ---------------------------------------------- + ---------- Sequential layer options ---------- + ---------------------------------------------- +*/ + +/** + * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c) + */ +#define LWIP_NETCONN 1 + +/* + ------------------------------------ + ---------- Socket options ---------- + ------------------------------------ +*/ +/** + * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c) + */ +#define LWIP_SOCKET 1 + +/** + * SO_REUSE==1: Enable SO_REUSEADDR + */ +#define SO_REUSE 1 + +/* + ---------------------------------------- + ---------- Statistics options ---------- + ---------------------------------------- +*/ +/** + * LWIP_STATS==1: Enable statistics collection in lwip_stats. + */ +#define LWIP_STATS 0 +/* + --------------------------------- + ---------- PPP options ---------- + --------------------------------- +*/ +/** + * PPP_SUPPORT==1: Enable PPP. + */ +#define PPP_SUPPORT 0 + + + +/* + --------------------------------------- + ---------- Threading options ---------- + --------------------------------------- +*/ + +#define LWIP_TCPIP_CORE_LOCKING 1 + +#if !NO_SYS +void sys_check_core_locking(void); +#define LWIP_ASSERT_CORE_LOCKED() sys_check_core_locking() +#endif + +#endif /* LWIP_LWIPOPTS_H */ diff --git a/middleware/lwip/contrib/ports/unix/port/include/arch/cc.h b/middleware/lwip/contrib/ports/unix/port/include/arch/cc.h new file mode 100644 index 0000000..7be900b --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/include/arch/cc.h @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_ARCH_CC_H +#define LWIP_ARCH_CC_H + +/* see https://sourceforge.net/p/predef/wiki/OperatingSystems/ */ +#if defined __ANDROID__ +#define LWIP_UNIX_ANDROID +#elif defined __linux__ +#define LWIP_UNIX_LINUX +#elif defined __APPLE__ +#define LWIP_UNIX_MACH +#elif defined __OpenBSD__ +#define LWIP_UNIX_OPENBSD +#elif defined __FreeBSD_kernel__ && __GLIBC__ +#define LWIP_UNIX_KFREEBSD +#elif defined __CYGWIN__ +#define LWIP_UNIX_CYGWIN +#elif defined __GNU__ +#define LWIP_UNIX_HURD +#endif + +#define LWIP_TIMEVAL_PRIVATE 0 +#include + +#define LWIP_ERRNO_INCLUDE + +#if defined(LWIP_UNIX_LINUX) || defined(LWIP_UNIX_HURD) || defined(LWIP_UNIX_KFREEBSD) +#define LWIP_ERRNO_STDINCLUDE 1 +#endif + +extern unsigned int lwip_port_rand(void); +#define LWIP_RAND() (lwip_port_rand()) + +/* different handling for unit test, normally not needed */ +#ifdef LWIP_NOASSERT_ON_ERROR +#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \ + handler;}} while(0) +#endif + +#if defined(LWIP_UNIX_ANDROID) && defined(FD_SET) +typedef __kernel_fd_set fd_set; +#endif + +#if defined(LWIP_UNIX_MACH) +/* sys/types.h and signal.h bring in Darwin byte order macros. pull the + header here and disable LwIP's version so that apps still can get + the macros via LwIP headers and use system headers */ +#include +#define LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS +#endif + +struct sio_status_s; +typedef struct sio_status_s sio_status_t; +#define sio_fd_t sio_status_t* +#define __sio_fd_t_defined + +typedef unsigned int sys_prot_t; + +#endif /* LWIP_ARCH_CC_H */ diff --git a/middleware/lwip/contrib/ports/unix/port/include/arch/perf.h b/middleware/lwip/contrib/ports/unix/port/include/arch/perf.h new file mode 100644 index 0000000..364f316 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/include/arch/perf.h @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_ARCH_PERF_H +#define LWIP_ARCH_PERF_H + +#include + +#ifdef PERF +#define PERF_START { \ + unsigned long __c1l, __c1h, __c2l, __c2h; \ + __asm__(".byte 0x0f, 0x31" : "=a" (__c1l), "=d" (__c1h)) +#define PERF_STOP(x) __asm__(".byte 0x0f, 0x31" : "=a" (__c2l), "=d" (__c2h)); \ + perf_print(__c1l, __c1h, __c2l, __c2h, x);} + +/*#define PERF_START do { \ + struct tms __perf_start, __perf_end; \ + times(&__perf_start) +#define PERF_STOP(x) times(&__perf_end); \ + perf_print_times(&__perf_start, &__perf_end, x);\ + } while(0)*/ +#else /* PERF */ +#define PERF_START /* null definition */ +#define PERF_STOP(x) /* null definition */ +#endif /* PERF */ + +void perf_print(unsigned long c1l, unsigned long c1h, + unsigned long c2l, unsigned long c2h, + char *key); + +void perf_print_times(struct tms *start, struct tms *end, char *key); + +void perf_init(char *fname); + +#endif /* LWIP_ARCH_PERF_H */ diff --git a/middleware/lwip/contrib/ports/unix/port/include/arch/sys_arch.h b/middleware/lwip/contrib/ports/unix/port/include/arch/sys_arch.h new file mode 100644 index 0000000..422104a --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/include/arch/sys_arch.h @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_ARCH_SYS_ARCH_H +#define LWIP_ARCH_SYS_ARCH_H + +#define SYS_MBOX_NULL NULL +#define SYS_SEM_NULL NULL + +/*typedef u32_t sys_prot_t;*/ + +struct sys_sem; +typedef struct sys_sem * sys_sem_t; +#define sys_sem_valid(sem) (((sem) != NULL) && (*(sem) != NULL)) +#define sys_sem_valid_val(sem) ((sem) != NULL) +#define sys_sem_set_invalid(sem) do { if((sem) != NULL) { *(sem) = NULL; }}while(0) +#define sys_sem_set_invalid_val(sem) do { (sem) = NULL; }while(0) + +struct sys_mutex; +typedef struct sys_mutex * sys_mutex_t; +#define sys_mutex_valid(mutex) sys_sem_valid(mutex) +#define sys_mutex_set_invalid(mutex) sys_sem_set_invalid(mutex) + +struct sys_mbox; +typedef struct sys_mbox * sys_mbox_t; +#define sys_mbox_valid(mbox) sys_sem_valid(mbox) +#define sys_mbox_valid_val(mbox) sys_sem_valid_val(mbox) +#define sys_mbox_set_invalid(mbox) sys_sem_set_invalid(mbox) +#define sys_mbox_set_invalid_val(mbox) sys_sem_set_invalid_val(mbox) + +struct sys_thread; +typedef struct sys_thread * sys_thread_t; + +#define LWIP_EXAMPLE_APP_ABORT() lwip_unix_keypressed() +int lwip_unix_keypressed(void); + +/* + --------------------------------------- + ---------- Threading options ---------- + --------------------------------------- +*/ + +void sys_mark_tcpip_thread(void); +#define LWIP_MARK_TCPIP_THREAD() sys_mark_tcpip_thread() + +#if LWIP_TCPIP_CORE_LOCKING +void sys_lock_tcpip_core(void); +#define LOCK_TCPIP_CORE() sys_lock_tcpip_core() +void sys_unlock_tcpip_core(void); +#define UNLOCK_TCPIP_CORE() sys_unlock_tcpip_core() +#endif + +#endif /* LWIP_ARCH_SYS_ARCH_H */ diff --git a/middleware/lwip/contrib/ports/unix/port/include/netif/fifo.h b/middleware/lwip/contrib/ports/unix/port/include/netif/fifo.h new file mode 100644 index 0000000..bda352a --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/include/netif/fifo.h @@ -0,0 +1,54 @@ +#ifndef FIFO_H +#define FIFO_H + +#include "lwip/sys.h" + +/** How many bytes in fifo */ +#define FIFOSIZE 2048 + +/** fifo data structure, this one is passed to all fifo functions */ +typedef struct fifo_t { + u8_t data[FIFOSIZE+10]; /* data segment, +10 is a hack probably not needed.. FIXME! */ + int dataslot; /* index to next char to be read */ + int emptyslot; /* index to next empty slot */ + int len; /* len probably not needed, may be calculated from dataslot and emptyslot in conjunction with FIFOSIZE */ + + sys_sem_t sem; /* semaphore protecting simultaneous data manipulation */ + sys_sem_t getSem; /* sepaphore used to signal new data if getWaiting is set */ + u8_t getWaiting; /* flag used to indicate that fifoget is waiting for data. fifoput is supposed to clear */ + /* this flag prior to signaling the getSem semaphore */ +} fifo_t; + + +/** +* Get a character from fifo +* Blocking call. +* @param fifo pointer to fifo data structure +* @return character read from fifo +*/ +u8_t fifoGet(fifo_t * fifo); + +/** +* Get a character from fifo +* Non blocking call. +* @param fifo pointer to fifo data structure +* @return character read from fifo, or < zero if non was available +*/ +s16_t fifoGetNonBlock(fifo_t * fifo); + +/** +* fifoput is called by the signalhandler when new data has arrived (or some other event is indicated) +* fifoput reads directly from the serialport and is thus highly dependent on unix arch at this moment +* @param fifo pointer to fifo data structure +* @param fd unix file descriptor +*/ +void fifoPut(fifo_t * fifo, int fd); + +/** +* fifoinit initiate fifo +* @param fifo pointer to fifo data structure, allocated by the user +*/ +void fifoInit(fifo_t * fifo); + +#endif + diff --git a/middleware/lwip/contrib/ports/unix/port/include/netif/list.h b/middleware/lwip/contrib/ports/unix/port/include/netif/list.h new file mode 100644 index 0000000..2c4d142 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/include/netif/list.h @@ -0,0 +1,26 @@ + +#ifndef LWIP_LIST_H +#define LWIP_LIST_H + +struct elem; + +struct list { + struct elem *first, *last; + int size, elems; +}; + +struct elem { + struct elem *next; + void *data; +}; + +struct list *list_new(int size); +int list_push(struct list *list, void *data); +void *list_pop(struct list *list); +void *list_first(struct list *list); +int list_elems(struct list *list); +void list_delete(struct list *list); +int list_remove(struct list *list, void *elem); +void list_map(struct list *list, void (* func)(void *arg)); + +#endif diff --git a/middleware/lwip/contrib/ports/unix/port/include/netif/pcapif.h b/middleware/lwip/contrib/ports/unix/port/include/netif/pcapif.h new file mode 100644 index 0000000..ef7abd5 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/include/netif/pcapif.h @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_PCAPIF_H +#define LWIP_PCAPIF_H + +#include "lwip/netif.h" + +err_t pcapif_init(struct netif *netif); + +#endif /* LWIP_PCAPIF_H */ diff --git a/middleware/lwip/contrib/ports/unix/port/include/netif/sio.h b/middleware/lwip/contrib/ports/unix/port/include/netif/sio.h new file mode 100644 index 0000000..b9ff131 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/include/netif/sio.h @@ -0,0 +1,60 @@ +#ifndef SIO_UNIX_H +#define SIO_UNIX_H + +#include "lwip/sys.h" +#include "lwip/netif.h" +#include "netif/fifo.h" +/*#include "netif/pppif.h"*/ + +struct sio_status_s { + int fd; + fifo_t myfifo; +}; + +/* BAUDRATE is defined in sio.c as it is implementation specific */ +/** Baudrates */ +typedef enum sioBaudrates { + SIO_BAUD_9600, + SIO_BAUD_19200, + SIO_BAUD_38400, + SIO_BAUD_57600, + SIO_BAUD_115200 +} sioBaudrates; + +/** +* Poll for a new character from incoming data stream +* @param siostat siostatus struct, contains sio instance data, given by sio_open +* @return char read from input stream, or < 0 if no char was available +*/ +s16_t sio_poll(sio_status_t * siostat); + +/** +* Parse incoming characters until a string str is received, blocking call +* @param str zero terminated string to expect +* @param siostat siostatus struct, contains sio instance data, given by sio_open +*/ +void sio_expect_string(u8_t *str, sio_status_t * siostat); + +/** +* Write a char to output data stream +* @param str pointer to a zero terminated string +* @param siostat siostatus struct, contains sio instance data, given by sio_open +*/ +void sio_send_string(u8_t *str, sio_status_t * siostat); + +/** +* Flush outbuffer (send everything in buffer now), useful if some layer below is +* holding on to data, waitng to fill a buffer +* @param siostat siostatus struct, contains sio instance data, given by sio_open +*/ +void sio_flush( sio_status_t * siostat ); + +/** +* Change baudrate of port, may close and reopen port +* @param baud new baudrate +* @param siostat siostatus struct, contains sio instance data, given by sio_open +*/ +void sio_change_baud( sioBaudrates baud, sio_status_t * siostat ); + +#endif + diff --git a/middleware/lwip/contrib/ports/unix/port/include/netif/tapif.h b/middleware/lwip/contrib/ports/unix/port/include/netif/tapif.h new file mode 100644 index 0000000..4c0fa6b --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/include/netif/tapif.h @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_TAPIF_H +#define LWIP_TAPIF_H + +#include "lwip/netif.h" + +err_t tapif_init(struct netif *netif); +void tapif_poll(struct netif *netif); +#if NO_SYS +int tapif_select(struct netif *netif); +#endif /* NO_SYS */ + +#endif /* LWIP_TAPIF_H */ diff --git a/middleware/lwip/contrib/ports/unix/port/netif/fifo.c b/middleware/lwip/contrib/ports/unix/port/netif/fifo.c new file mode 100644 index 0000000..350d3ea --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/netif/fifo.c @@ -0,0 +1,139 @@ +/* Author: Magnus Ivarsson */ + +/* ---------------------------------------------- */ +/* --- fifo 4 unix ------------------------------ */ +/* ---------------------------------------------- */ +#include "lwip/err.h" +#include "netif/fifo.h" +#include "lwip/debug.h" +#include "lwip/def.h" +#include "lwip/sys.h" +#include "lwip/arch.h" +#include + +#ifndef TRUE +#define TRUE 1 +#endif +#ifndef FALSE +#define FALSE 0 +#endif + +#ifndef SIO_FIFO_DEBUG +#define SIO_FIFO_DEBUG LWIP_DBG_OFF +#endif + +u8_t fifoGet(fifo_t * fifo) +{ + u8_t c; + + sys_sem_wait(&fifo->sem); /* enter critical section */ + + if (fifo->dataslot == fifo->emptyslot) + { + fifo->getWaiting = TRUE; /* tell putFifo to signal us when data is available */ + sys_sem_signal(&fifo->sem); /* leave critical section (allow input from serial port..) */ + sys_sem_wait(&fifo->getSem); /* wait 4 data */ + sys_sem_wait(&fifo->sem); /* reenter critical section */ + } + + c = fifo->data[fifo->dataslot++]; + fifo->len--; + + if (fifo->dataslot == FIFOSIZE) + { + fifo->dataslot = 0; + } + sys_sem_signal(&fifo->sem); /* leave critical section */ + return c; +} + + +s16_t fifoGetNonBlock(fifo_t * fifo) +{ + u16_t c; + + sys_sem_wait(&fifo->sem); /* enter critical section */ + + if (fifo->dataslot == fifo->emptyslot) + { + /* empty fifo */ + c = -1; + } + else + { + c = fifo->data[fifo->dataslot++]; + fifo->len--; + + if (fifo->dataslot == FIFOSIZE) + { + fifo->dataslot = 0; + } + } + sys_sem_signal(&fifo->sem); /* leave critical section */ + return c; +} + + +void fifoPut(fifo_t * fifo, int fd) +{ + /* FIXME: mutex around struct data.. */ + int cnt=0; + + sys_sem_wait(&fifo->sem ); /* enter critical */ + + LWIP_DEBUGF( SIO_FIFO_DEBUG,("fifoput: len%d dat%d empt%d --> ", fifo->len, fifo->dataslot, fifo->emptyslot ) ); + + if ( fifo->emptyslot < fifo->dataslot ) + { + cnt = read( fd, &fifo->data[fifo->emptyslot], fifo->dataslot - fifo->emptyslot ); + } + else + { + cnt = read( fd, &fifo->data[fifo->emptyslot], FIFOSIZE-fifo->emptyslot ); + } + fifo->emptyslot += cnt; + fifo->len += cnt; + + LWIP_DEBUGF( SIO_FIFO_DEBUG,("len%d dat%d empt%d\n", fifo->len, fifo->dataslot, fifo->emptyslot ) ); + + if ( fifo->len > FIFOSIZE ) + { + printf( "ERROR: fifo overrun detected len=%d, flushing\n", fifo->len ); + fifo->dataslot = 0; + fifo->emptyslot = 0; + fifo->len = 0; + } + + if ( fifo->emptyslot == FIFOSIZE ) + { + fifo->emptyslot = 0; + LWIP_DEBUGF( SIO_FIFO_DEBUG, ("(WRAP) ") ); + + sys_sem_signal(&fifo->sem ); /* leave critical */ + fifoPut( fifo, fd ); + return; + } + if ( fifo->getWaiting ) + { + fifo->getWaiting = FALSE; + sys_sem_signal(&fifo->getSem ); + } + + sys_sem_signal(&fifo->sem ); /* leave critical */ + return; +} + + +void fifoInit(fifo_t * fifo) +{ + fifo->dataslot = 0; + fifo->emptyslot = 0; + fifo->len = 0; + if(sys_sem_new(&fifo->sem, 1) != ERR_OK) { /* critical section 1=free to enter */ + LWIP_ASSERT("Failed to create semaphore", 0); + } + if(sys_sem_new(&fifo->getSem, 0) != ERR_OK) { /* 0 = no one waiting */ + LWIP_ASSERT("Failed to create semaphore", 0); + } + fifo->getWaiting = FALSE; +} diff --git a/middleware/lwip/contrib/ports/unix/port/netif/list.c b/middleware/lwip/contrib/ports/unix/port/netif/list.c new file mode 100644 index 0000000..77faab5 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/netif/list.c @@ -0,0 +1,152 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + + + +#include +#include + + +/*-----------------------------------------------------------------------------------*/ +struct list * +list_new(int size) +{ + struct list *list; + list = (struct list *)malloc(sizeof(struct list)); + list->first = list->last = NULL; + list->size = size; + list->elems = 0; + return list; +} +/*-----------------------------------------------------------------------------------*/ +int +list_push(struct list *list, void *data) +{ + struct elem *elem; + + if (list->elems < list->size) { + elem = (struct elem *)malloc(sizeof(struct elem)); + elem->data = data; + elem->next = NULL; + if (list->last != NULL) { + list->last->next = elem; + } + list->last = elem; + if (list->first == NULL) { + list->first = elem; + } + list->elems++; + return 1; + } + return 0; +} +/*-----------------------------------------------------------------------------------*/ +void * +list_pop(struct list *list) +{ + struct elem *elem; + void *data; + + if (list->elems > 0) { + elem = list->first; + if (elem == list->last) { + list->last = elem->next; + } + list->first = elem->next; + + list->elems--; + + data = elem->data; + free(elem); + + return data; + } + return NULL; +} +/*-----------------------------------------------------------------------------------*/ +void * +list_first(struct list *list) +{ + return list->first; +} +/*-----------------------------------------------------------------------------------*/ +int +list_elems(struct list *list) +{ + return list->elems; +} +/*-----------------------------------------------------------------------------------*/ +void +list_delete(struct list *list) +{ + while (list_pop(list) != NULL); + free(list); +} +/*-----------------------------------------------------------------------------------*/ +int +list_remove(struct list *list, void *elem) +{ + struct elem *e, *p; + + p = NULL; + for(e = list->first; e != NULL; e = e->next) { + if (e->data == elem) { + if (p != NULL) { + p->next = e->next; + } else { + list->first = e->next; + } + if (list->last == e) { + list->last = p; + if (p != NULL) { + p->next = NULL; + } + } + free(e); + list->elems--; + return 1; + } + p = e; + } + return 0; +} +/*-----------------------------------------------------------------------------------*/ +void +list_map(struct list *list, void (* func)(void *arg)) +{ + struct elem *e; + + for(e = list->first; e != NULL; e = e->next) { + func(e->data); + } +} +/*-----------------------------------------------------------------------------------*/ diff --git a/middleware/lwip/contrib/ports/unix/port/netif/pcapif.c b/middleware/lwip/contrib/ports/unix/port/netif/pcapif.c new file mode 100644 index 0000000..2851c82 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/netif/pcapif.c @@ -0,0 +1,207 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#ifndef linux /* Apparently, this doesn't work under Linux. */ + +#include "lwip/debug.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "netif/etharp.h" + +#include "lwip/stats.h" + +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/pbuf.h" +#include "lwip/sys.h" + +#include "lwip/ip.h" + + +struct pcapif { + pcap_t *pd; + sys_sem_t sem; + u8_t pkt[2048]; + u32_t len; + u32_t lasttime; + struct pbuf *p; + struct eth_addr *ethaddr; +}; + +static char errbuf[PCAP_ERRBUF_SIZE]; + +/*-----------------------------------------------------------------------------------*/ +static err_t +pcapif_output(struct netif *netif, struct pbuf *p, + ip_addr_t *ipaddr) +{ + return ERR_OK; +} +/*-----------------------------------------------------------------------------------*/ +static void +timeout(void *arg) +{ + struct netif *netif; + struct pcapif *pcapif; + struct pbuf *p; + struct eth_hdr *ethhdr; + + netif = (struct netif *)arg; + pcapif = netif->state; + ethhdr = (struct eth_hdr *)pcapif->pkt; + + + if (lwip_htons(ethhdr->type) != ETHTYPE_IP || + ip_lookup(pcapif->pkt + 14, netif)) { + + /* We allocate a pbuf chain of pbufs from the pool. */ + p = pbuf_alloc(PBUF_LINK, pcapif->len, PBUF_POOL); + + if (p != NULL) { + pbuf_take(p, pcapif->pkt, pcapif->len); + + ethhdr = p->payload; + switch (lwip_htons(ethhdr->type)) { + /* IP or ARP packet? */ + case ETHTYPE_IP: + case ETHTYPE_ARP: +#if PPPOE_SUPPORT + /* PPPoE packet? */ + case ETHTYPE_PPPOEDISC: + case ETHTYPE_PPPOE: +#endif /* PPPOE_SUPPORT */ + /* full packet send to tcpip_thread to process */ + if (netif->input(p, netif) != ERR_OK) { + LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n")); + pbuf_free(p); + p = NULL; + } + break; + default: + pbuf_free(p); + break; + } + } + } else { + printf("ip_lookup dropped\n"); + } + + sys_sem_signal(&pcapif->sem); +} +/*-----------------------------------------------------------------------------------*/ +static void +callback(u_char *arg, const struct pcap_pkthdr *hdr, const u_char *pkt) +{ + struct netif *netif; + struct pcapif *pcapif; + u32_t time, lasttime; + + netif = (struct netif *)arg; + pcapif = netif->state; + + pcapif->len = hdr->len; + + bcopy(pkt, pcapif->pkt, hdr->len); + + time = hdr->ts.tv_sec * 1000 + hdr->ts.tv_usec / 1000; + + lasttime = pcapif->lasttime; + pcapif->lasttime = time; + + + if (lasttime == 0) { + sys_timeout(1000, timeout, netif); + } else { + sys_timeout(time - lasttime, timeout, netif); + } +} +/*-----------------------------------------------------------------------------------*/ +static void +pcapif_thread(void *arg) +{ + struct netif *netif; + struct pcapif *pcapif; + netif = arg; + pcapif = netif->state; + + while (1) { + pcap_loop(pcapif->pd, 1, callback, (u_char *)netif); + sys_sem_wait(&pcapif->sem); + if (pcapif->p != NULL) { + netif->input(pcapif->p, netif); + } + } +} +/*-----------------------------------------------------------------------------------*/ +err_t +pcapif_init(struct netif *netif) +{ + struct pcapif *p; + + p = malloc(sizeof(struct pcapif)); + if (p == NULL) + return ERR_MEM; + netif->state = p; + netif->name[0] = 'p'; + netif->name[1] = 'c'; + netif->output = pcapif_output; + + p->pd = pcap_open_offline("pcapdump", errbuf); + if (p->pd == NULL) { + printf("pcapif_init: failed %s\n", errbuf); + return ERR_IF; + } + + if(sys_sem_new(&p->sem, 0) != ERR_OK) { + LWIP_ASSERT("Failed to create semaphore", 0); + } + p->p = NULL; + p->lasttime = 0; + + sys_thread_new("pcapif_thread", pcapif_thread, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); + return ERR_OK; +} +/*-----------------------------------------------------------------------------------*/ +#endif /* linux */ diff --git a/middleware/lwip/contrib/ports/unix/port/netif/sio.c b/middleware/lwip/contrib/ports/unix/port/netif/sio.c new file mode 100644 index 0000000..b33e675 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/netif/sio.c @@ -0,0 +1,485 @@ +/* Author: Magnus Ivarsson */ + +/* to get rid of implicit function declarations */ +#define _XOPEN_SOURCE 600 +#define _GNU_SOURCE + +/* build with Darwin C extensions not part of POSIX, i.e. FASYNC, SIGIO. + we can't use LWIP_UNIX_MACH because extensions need to be turned + on before any system headers (which are pulled in through cc.h) + are included */ +#if defined(__APPLE__) +#define _DARWIN_C_SOURCE +#endif + +#include "netif/sio.h" +#include "netif/fifo.h" +#include "lwip/debug.h" +#include "lwip/def.h" +#include "lwip/sys.h" +#include "lwip/arch.h" +#include "lwip/sio.h" +#include "netif/ppp/ppp_opts.h" + +/* Following #undefs are here to keep compiler from issuing warnings + about them being double defined. (They are defined in lwip/inet.h + as well as the Unix #includes below.) */ +#undef htonl +#undef ntohl +#undef htons +#undef ntohs +#undef HTONL +#undef NTOHL +#undef HTONS +#undef NTOHS + +#include +#include +#if defined(LWIP_UNIX_OPENBSD) +#include +#endif +#include +#include +#include +#include +#include +#include +#include +#include + +#ifndef LWIP_HAVE_SLIPIF +#define LWIP_HAVE_SLIPIF 0 +#endif + +#if (PPP_SUPPORT || LWIP_HAVE_SLIPIF) && defined(LWIP_UNIX_LINUX) +#include +#endif + +/*#define BAUDRATE B19200 */ +/*#define BAUDRATE B57600 */ +#define BAUDRATE B115200 + +#ifndef TRUE +#define TRUE 1 +#endif +#ifndef FALSE +#define FALSE 0 +#endif + +/* for all of you who don't define SIO_DEBUG in debug.h */ +#ifndef SIO_DEBUG +#define SIO_DEBUG 0 +#endif + + +/* typedef struct siostruct_t */ +/* { */ +/* sio_status_t *sio; */ +/* } siostruct_t; */ + +/** array of ((siostruct*)netif->state)->sio structs */ +static sio_status_t statusar[4]; + +#if ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) +/* --private-functions----------------------------------------------------------------- */ +/** + * Signal handler for ttyXX0 to indicate bytes received + * one per interface is needed since we cannot send a instance number / pointer as callback argument (?) + */ +static void signal_handler_IO_0( int status ) +{ + LWIP_UNUSED_ARG(status); + LWIP_DEBUGF(SIO_DEBUG, ("SigHand: rxSignal channel 0\n")); + fifoPut( &statusar[0].myfifo, statusar[0].fd ); +} + +/** + * Signal handler for ttyXX1 to indicate bytes received + * one per interface is needed since we cannot send a instance number / pointer as callback argument (?) + */ +static void signal_handler_IO_1( int status ) +{ + LWIP_UNUSED_ARG(status); + LWIP_DEBUGF(SIO_DEBUG, ("SigHand: rxSignal channel 1\n")); + fifoPut( &statusar[1].myfifo, statusar[1].fd ); +} +#endif /* ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) */ + +/** +* Initiation of serial device +* @param device string with the device name and path, eg. "/dev/ttyS0" +* @param devnum device number +* @param siostat status +* @return file handle to serial dev. +*/ +static int sio_init( char * device, int devnum, sio_status_t * siostat ) +{ + struct termios oldtio,newtio; +#if ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) + struct sigaction saio; /* definition of signal action */ +#endif + int fd; + LWIP_UNUSED_ARG(siostat); + LWIP_UNUSED_ARG(devnum); + + /* open the device to be non-blocking (read will return immediately) */ + fd = open( device, O_RDWR | O_NOCTTY | O_NONBLOCK ); + if ( fd < 0 ) + { + perror( device ); + exit( -1 ); + } + +#if ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) + memset(&saio, 0, sizeof(struct sigaction)); + /* install the signal handler before making the device asynchronous */ + switch ( devnum ) + { + case 0: + LWIP_DEBUGF( SIO_DEBUG, ("sioinit, signal_handler_IO_0\n") ); + saio.sa_handler = signal_handler_IO_0; + break; + case 1: + LWIP_DEBUGF( SIO_DEBUG, ("sioinit, signal_handler_IO_1\n") ); + saio.sa_handler = signal_handler_IO_1; + break; + default: + LWIP_DEBUGF( SIO_DEBUG,("sioinit, devnum not allowed\n") ); + break; + } + + sigaction( SIGIO,&saio,NULL ); + + /* allow the process to receive SIGIO */ + if ( fcntl( fd, F_SETOWN, getpid( ) ) != 0) + { + perror( device ); + exit( -1 ); + } + /* Make the file descriptor asynchronous (the manual page says only + O_APPEND and O_NONBLOCK, will work with F_SETFL...) */ + if ( fcntl( fd, F_SETFL, FASYNC ) != 0) + { + perror( device ); + exit( -1 ); + } +#else + if ( fcntl( fd, F_SETFL, 0 ) != 0) + { + perror( device ); + exit( -1 ); + } + +#endif /* ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) */ + + tcgetattr( fd,&oldtio ); /* save current port settings */ + /* set new port settings */ + /* see 'man termios' for further settings */ + memset(&newtio, 0, sizeof(newtio)); + newtio.c_cflag = BAUDRATE | CS8 | CLOCAL | CREAD | CRTSCTS; + newtio.c_iflag = 0; + newtio.c_oflag = 0; + newtio.c_lflag = 0; /*ECHO; */ + newtio.c_cc[VMIN] = 1; /* Read 1 byte at a time, no timer */ + newtio.c_cc[VTIME] = 0; + + tcsetattr( fd,TCSANOW,&newtio ); + tcflush( fd, TCIOFLUSH ); + + return fd; +} + +/** +* +*/ +static void sio_speed( int fd, int speed ) +{ + struct termios oldtio,newtio; + /* int fd; */ + + LWIP_DEBUGF(SIO_DEBUG, ("sio_speed[%d]: baudcode:%d enter\n", fd, speed)); + + if ( fd < 0 ) + { + LWIP_DEBUGF(SIO_DEBUG, ("sio_speed[%d]: fd ERROR\n", fd)); + exit( -1 ); + } + + tcgetattr( fd,&oldtio ); /* get current port settings */ + + /* set new port settings + * see 'man termios' for further settings */ + memset(&newtio, 0, sizeof(newtio)); + newtio.c_cflag = speed | CS8 | CLOCAL | CREAD; /* | CRTSCTS; */ + newtio.c_iflag = 0; + newtio.c_oflag = 0; + newtio.c_lflag = 0; /*ECHO; */ + newtio.c_cc[VMIN] = 1; /* Read 1 byte at a time, no timer */ + newtio.c_cc[VTIME] = 0; + + tcsetattr( fd,TCSANOW,&newtio ); + tcflush( fd, TCIOFLUSH ); + + LWIP_DEBUGF(SIO_DEBUG, ("sio_speed[%d]: leave\n", fd)); +} + +/* --public-functions----------------------------------------------------------------------------- */ +void sio_send( u8_t c, sio_status_t * siostat ) +{ + /* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio; */ + + if ( write( siostat->fd, &c, 1 ) <= 0 ) + { + LWIP_DEBUGF(SIO_DEBUG, ("sio_send[%d]: write refused\n", siostat->fd)); + } +} + +void sio_send_string( u8_t *str, sio_status_t * siostat ) +{ + /* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio; */ + int len = strlen( (const char *)str ); + + if ( write( siostat->fd, str, len ) <= 0 ) + { + LWIP_DEBUGF(SIO_DEBUG, ("sio_send_string[%d]: write refused\n", siostat->fd)); + } + LWIP_DEBUGF(SIO_DEBUG, ("sio_send_string[%d]: sent: %s\n", siostat->fd, str)); +} + + +void sio_flush( sio_status_t * siostat ) +{ + LWIP_UNUSED_ARG(siostat); + /* not implemented in unix as it is not needed */ + /*sio_status_t * siostat = ((siostruct_t*)netif->state)->sio; */ +} + + +#if ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) +/*u8_t sio_recv( struct netif * netif )*/ +u8_t sio_recv( sio_status_t * siostat ) +{ + /* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio; */ + return fifoGet( &(siostat->myfifo) ); +} + +s16_t sio_poll(sio_status_t * siostat) +{ + /* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio;*/ + return fifoGetNonBlock( &(siostat->myfifo) ); +} + + +void sio_expect_string( u8_t *str, sio_status_t * siostat ) +{ + /* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio;*/ + u8_t c; + int finger=0; + + LWIP_DEBUGF(SIO_DEBUG, ("sio_expect_string[%d]: %s\n", siostat->fd, str)); + while ( 1 ) + { + c=fifoGet( &(siostat->myfifo) ); + LWIP_DEBUGF(SIO_DEBUG, ("_%c", c)); + if ( c==str[finger] ) + { + finger++; + } else if ( finger > 0 ) + { + /*it might fit in the beginning? */ + if ( str[0] == c ) + { + finger = 1; + } + } + if ( 0 == str[finger] ) + break; /* done, we have a match */ + } + LWIP_DEBUGF(SIO_DEBUG, ("sio_expect_string[%d]: [match]\n", siostat->fd)); +} +#endif /* ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) */ + +#if (PPP_SUPPORT || LWIP_HAVE_SLIPIF) +u32_t sio_write(sio_status_t * siostat, u8_t *buf, u32_t size) +{ + ssize_t wsz = write( siostat->fd, buf, size ); + return wsz < 0 ? 0 : wsz; +} + +u32_t sio_read(sio_status_t * siostat, u8_t *buf, u32_t size) +{ + ssize_t rsz = read( siostat->fd, buf, size ); + return rsz < 0 ? 0 : rsz; +} + +void sio_read_abort(sio_status_t * siostat) +{ + LWIP_UNUSED_ARG(siostat); + printf("sio_read_abort[%d]: not yet implemented for unix\n", siostat->fd); +} +#endif /* (PPP_SUPPORT || LWIP_HAVE_SLIPIF) */ + +sio_fd_t sio_open(u8_t devnum) +{ + char dev[20]; + + /* would be nice with dynamic memory alloc */ + sio_status_t * siostate = &statusar[ devnum ]; +/* siostruct_t * tmp; */ + + +/* tmp = (siostruct_t*)(netif->state); */ +/* tmp->sio = siostate; */ + +/* tmp = (siostruct_t*)(netif->state); */ + +/* ((sio_status_t*)(tmp->sio))->fd = 0; */ + + LWIP_DEBUGF(SIO_DEBUG, ("sio_open: for devnum %d\n", devnum)); + +#if ! (PPP_SUPPORT || LWIP_HAVE_SLIPIF) + fifoInit( &siostate->myfifo ); +#endif /* ! PPP_SUPPORT */ + + snprintf( dev, sizeof(dev), "/dev/ttyS%d", devnum ); + + if ( (devnum == 1) || (devnum == 0) ) + { + if ( ( siostate->fd = sio_init( dev, devnum, siostate ) ) == 0 ) + { + LWIP_DEBUGF(SIO_DEBUG, ("sio_open: ERROR opening serial device dev=%s\n", dev)); + abort( ); + return NULL; + } + LWIP_DEBUGF(SIO_DEBUG, ("sio_open[%d]: dev=%s open.\n", siostate->fd, dev)); + } +#if PPP_SUPPORT + else if (devnum == 2) { + pid_t childpid; + char name[256]; + childpid = forkpty(&siostate->fd, name, NULL, NULL); + if(childpid < 0) { + perror("forkpty"); + exit (1); + } + if(childpid == 0) { + execl("/usr/sbin/pppd", "pppd", + "ms-dns", "198.168.100.7", + "local", "crtscts", + "debug", +#ifdef LWIP_PPP_CHAP_TEST + "auth", + "require-chap", + "remotename", "lwip", +#else + "noauth", +#endif +#if LWIP_IPV6 + "+ipv6", +#endif + "192.168.1.1:192.168.1.2", + NULL); + perror("execl pppd"); + exit (1); + } else { + LWIP_DEBUGF(SIO_DEBUG, ("sio_open[%d]: spawned pppd pid %d on %s\n", + siostate->fd, childpid, name)); + } + + } +#endif +#if LWIP_HAVE_SLIPIF + else if (devnum == 3) { + pid_t childpid; + /* create PTY pair */ + siostate->fd = posix_openpt(O_RDWR | O_NOCTTY); + if (siostate->fd < 0) { + perror("open pty master"); + exit (1); + } + if (grantpt(siostate->fd) != 0) { + perror("grant pty master"); + exit (1); + } + if (unlockpt(siostate->fd) != 0) { + perror("unlock pty master"); + exit (1); + } + LWIP_DEBUGF(SIO_DEBUG, ("sio_open[%d]: for %s\n", + siostate->fd, ptsname(siostate->fd))); + /* fork for slattach */ + childpid = fork(); + if(childpid < 0) { + perror("fork"); + exit (1); + } + if(childpid == 0) { + /* esteblish SLIP interface on host side connected to PTY slave */ + execl("/sbin/slattach", "slattach", + "-d", "-v", "-L", "-p", "slip", + ptsname(siostate->fd), + NULL); + perror("execl slattach"); + exit (1); + } else { + int ret; + char buf[1024]; + LWIP_DEBUGF(SIO_DEBUG, ("sio_open[%d]: spawned slattach pid %d on %s\n", + siostate->fd, childpid, ptsname(siostate->fd))); + /* wait a moment for slattach startup */ + sleep(1); + /* configure SLIP interface on host side as P2P interface */ + snprintf(buf, sizeof(buf), + "/sbin/ifconfig sl0 mtu %d %s pointopoint %s up", + SLIP_MAX_SIZE, "192.168.2.1", "192.168.2.2"); + LWIP_DEBUGF(SIO_DEBUG, ("sio_open[%d]: system(\"%s\");\n", siostate->fd, buf)); + ret = system(buf); + if (ret < 0) { + perror("ifconfig failed"); + exit(1); + } + } + } +#endif /* LWIP_HAVE_SLIPIF */ + else + { + LWIP_DEBUGF(SIO_DEBUG, ("sio_open: device %s (%d) is not supported\n", dev, devnum)); + return NULL; + } + + return siostate; +} + +/** +* +*/ +void sio_change_baud( sioBaudrates baud, sio_status_t * siostat ) +{ + /* sio_status_t * siostat = ((siostruct_t*)netif->state)->sio;*/ + + LWIP_DEBUGF(SIO_DEBUG, ("sio_change_baud[%d]\n", siostat->fd)); + + switch ( baud ) + { + case SIO_BAUD_9600: + sio_speed( siostat->fd, B9600 ); + break; + case SIO_BAUD_19200: + sio_speed( siostat->fd, B19200 ); + break; + case SIO_BAUD_38400: + sio_speed( siostat->fd, B38400 ); + break; + case SIO_BAUD_57600: + sio_speed( siostat->fd, B57600 ); + break; + case SIO_BAUD_115200: + sio_speed( siostat->fd, B115200 ); + break; + + default: + LWIP_DEBUGF(SIO_DEBUG, ("sio_change_baud[%d]: Unknown baudrate, code:%d\n", + siostat->fd, baud)); + break; + } +} diff --git a/middleware/lwip/contrib/ports/unix/port/netif/tapif.c b/middleware/lwip/contrib/ports/unix/port/netif/tapif.c new file mode 100644 index 0000000..b5f8ad2 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/netif/tapif.c @@ -0,0 +1,432 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "lwip/opt.h" + +#include "lwip/debug.h" +#include "lwip/def.h" +#include "lwip/ip.h" +#include "lwip/mem.h" +#include "lwip/stats.h" +#include "lwip/snmp.h" +#include "lwip/pbuf.h" +#include "lwip/sys.h" +#include "lwip/timeouts.h" +#include "netif/etharp.h" +#include "lwip/ethip6.h" + +#include "netif/tapif.h" + +#define IFCONFIG_BIN "/sbin/ifconfig " + +#if defined(LWIP_UNIX_LINUX) +#include +#include +#include +/* + * Creating a tap interface requires special privileges. If the interfaces + * is created in advance with `tunctl -u ` it can be opened as a regular + * user. The network must already be configured. If DEVTAP_IF is defined it + * will be opened instead of creating a new tap device. + * + * You can also use PRECONFIGURED_TAPIF environment variable to do so. + */ +#ifndef DEVTAP_DEFAULT_IF +#define DEVTAP_DEFAULT_IF "tap0" +#endif +#ifndef DEVTAP +#define DEVTAP "/dev/net/tun" +#endif +#define NETMASK_ARGS "netmask %d.%d.%d.%d" +#define IFCONFIG_ARGS "tap0 inet %d.%d.%d.%d " NETMASK_ARGS +#elif defined(LWIP_UNIX_OPENBSD) +#define DEVTAP "/dev/tun0" +#define NETMASK_ARGS "netmask %d.%d.%d.%d" +#define IFCONFIG_ARGS "tun0 inet %d.%d.%d.%d " NETMASK_ARGS " link0" +#else /* others */ +#define DEVTAP "/dev/tap0" +#define NETMASK_ARGS "netmask %d.%d.%d.%d" +#define IFCONFIG_ARGS "tap0 inet %d.%d.%d.%d " NETMASK_ARGS +#endif + +/* Define those to better describe your network interface. */ +#define IFNAME0 't' +#define IFNAME1 'p' + +#ifndef TAPIF_DEBUG +#define TAPIF_DEBUG LWIP_DBG_OFF +#endif + +struct tapif { + /* Add whatever per-interface state that is needed here. */ + int fd; +}; + +/* Forward declarations. */ +static void tapif_input(struct netif *netif); +#if !NO_SYS +static void tapif_thread(void *arg); +#endif /* !NO_SYS */ + +/*-----------------------------------------------------------------------------------*/ +static void +low_level_init(struct netif *netif) +{ + struct tapif *tapif; +#if LWIP_IPV4 + int ret; + char buf[1024]; +#endif /* LWIP_IPV4 */ + char *preconfigured_tapif = getenv("PRECONFIGURED_TAPIF"); + + tapif = (struct tapif *)netif->state; + + /* Obtain MAC address from network interface. */ + + /* (We just fake an address...) */ + netif->hwaddr[0] = 0x02; + netif->hwaddr[1] = 0x12; + netif->hwaddr[2] = 0x34; + netif->hwaddr[3] = 0x56; + netif->hwaddr[4] = 0x78; + netif->hwaddr[5] = 0xab; + netif->hwaddr_len = 6; + + /* device capabilities */ + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_IGMP; + + tapif->fd = open(DEVTAP, O_RDWR); + LWIP_DEBUGF(TAPIF_DEBUG, ("tapif_init: fd %d\n", tapif->fd)); + if (tapif->fd == -1) { +#ifdef LWIP_UNIX_LINUX + perror("tapif_init: try running \"modprobe tun\" or rebuilding your kernel with CONFIG_TUN; cannot open "DEVTAP); +#else /* LWIP_UNIX_LINUX */ + perror("tapif_init: cannot open "DEVTAP); +#endif /* LWIP_UNIX_LINUX */ + exit(1); + } + +#ifdef LWIP_UNIX_LINUX + { + struct ifreq ifr; + memset(&ifr, 0, sizeof(ifr)); + + if (preconfigured_tapif) { + strncpy(ifr.ifr_name, preconfigured_tapif, sizeof(ifr.ifr_name)); + } else { + strncpy(ifr.ifr_name, DEVTAP_DEFAULT_IF, sizeof(ifr.ifr_name)); + } + ifr.ifr_name[sizeof(ifr.ifr_name)-1] = 0; /* ensure \0 termination */ + + ifr.ifr_flags = IFF_TAP|IFF_NO_PI; + if (ioctl(tapif->fd, TUNSETIFF, (void *) &ifr) < 0) { + perror("tapif_init: "DEVTAP" ioctl TUNSETIFF"); + exit(1); + } + } +#endif /* LWIP_UNIX_LINUX */ + + netif_set_link_up(netif); + + if (preconfigured_tapif == NULL) { +#if LWIP_IPV4 + snprintf(buf, 1024, IFCONFIG_BIN IFCONFIG_ARGS, + ip4_addr1(netif_ip4_gw(netif)), + ip4_addr2(netif_ip4_gw(netif)), + ip4_addr3(netif_ip4_gw(netif)), + ip4_addr4(netif_ip4_gw(netif)) +#ifdef NETMASK_ARGS + , + ip4_addr1(netif_ip4_netmask(netif)), + ip4_addr2(netif_ip4_netmask(netif)), + ip4_addr3(netif_ip4_netmask(netif)), + ip4_addr4(netif_ip4_netmask(netif)) +#endif /* NETMASK_ARGS */ + ); + + LWIP_DEBUGF(TAPIF_DEBUG, ("tapif_init: system(\"%s\");\n", buf)); + ret = system(buf); + if (ret < 0) { + perror("ifconfig failed"); + exit(1); + } + if (ret != 0) { + printf("ifconfig returned %d\n", ret); + } +#else /* LWIP_IPV4 */ + perror("todo: support IPv6 support for non-preconfigured tapif"); + exit(1); +#endif /* LWIP_IPV4 */ + } + +#if !NO_SYS + sys_thread_new("tapif_thread", tapif_thread, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); +#endif /* !NO_SYS */ +} +/*-----------------------------------------------------------------------------------*/ +/* + * low_level_output(): + * + * Should do the actual transmission of the packet. The packet is + * contained in the pbuf that is passed to the function. This pbuf + * might be chained. + * + */ +/*-----------------------------------------------------------------------------------*/ + +static err_t +low_level_output(struct netif *netif, struct pbuf *p) +{ + struct tapif *tapif = (struct tapif *)netif->state; + char buf[1518]; /* max packet size including VLAN excluding CRC */ + ssize_t written; + +#if 0 + if (((double)rand()/(double)RAND_MAX) < 0.2) { + printf("drop output\n"); + return ERR_OK; /* ERR_OK because we simulate packet loss on cable */ + } +#endif + + if (p->tot_len > sizeof(buf)) { + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + perror("tapif: packet too large"); + return ERR_IF; + } + + /* initiate transfer(); */ + pbuf_copy_partial(p, buf, p->tot_len, 0); + + /* signal that packet should be sent(); */ + written = write(tapif->fd, buf, p->tot_len); + if (written < p->tot_len) { + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + perror("tapif: write"); + return ERR_IF; + } else { + MIB2_STATS_NETIF_ADD(netif, ifoutoctets, (u32_t)written); + return ERR_OK; + } +} +/*-----------------------------------------------------------------------------------*/ +/* + * low_level_input(): + * + * Should allocate a pbuf and transfer the bytes of the incoming + * packet from the interface into the pbuf. + * + */ +/*-----------------------------------------------------------------------------------*/ +static struct pbuf * +low_level_input(struct netif *netif) +{ + struct pbuf *p; + u16_t len; + ssize_t readlen; + char buf[1518]; /* max packet size including VLAN excluding CRC */ + struct tapif *tapif = (struct tapif *)netif->state; + + /* Obtain the size of the packet and put it into the "len" + variable. */ + readlen = read(tapif->fd, buf, sizeof(buf)); + if (readlen < 0) { + perror("read returned -1"); + exit(1); + } + len = (u16_t)readlen; + + MIB2_STATS_NETIF_ADD(netif, ifinoctets, len); + +#if 0 + if (((double)rand()/(double)RAND_MAX) < 0.2) { + printf("drop\n"); + return NULL; + } +#endif + + /* We allocate a pbuf chain of pbufs from the pool. */ + p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL); + if (p != NULL) { + pbuf_take(p, buf, len); + /* acknowledge that packet has been read(); */ + } else { + /* drop packet(); */ + MIB2_STATS_NETIF_INC(netif, ifindiscards); + LWIP_DEBUGF(NETIF_DEBUG, ("tapif_input: could not allocate pbuf\n")); + } + + return p; +} + +/*-----------------------------------------------------------------------------------*/ +/* + * tapif_input(): + * + * This function should be called when a packet is ready to be read + * from the interface. It uses the function low_level_input() that + * should handle the actual reception of bytes from the network + * interface. + * + */ +/*-----------------------------------------------------------------------------------*/ +static void +tapif_input(struct netif *netif) +{ + struct pbuf *p = low_level_input(netif); + + if (p == NULL) { +#if LINK_STATS + LINK_STATS_INC(link.recv); +#endif /* LINK_STATS */ + LWIP_DEBUGF(TAPIF_DEBUG, ("tapif_input: low_level_input returned NULL\n")); + return; + } + + if (netif->input(p, netif) != ERR_OK) { + LWIP_DEBUGF(NETIF_DEBUG, ("tapif_input: netif input error\n")); + pbuf_free(p); + } +} +/*-----------------------------------------------------------------------------------*/ +/* + * tapif_init(): + * + * Should be called at the beginning of the program to set up the + * network interface. It calls the function low_level_init() to do the + * actual setup of the hardware. + * + */ +/*-----------------------------------------------------------------------------------*/ +err_t +tapif_init(struct netif *netif) +{ + struct tapif *tapif = (struct tapif *)mem_malloc(sizeof(struct tapif)); + + if (tapif == NULL) { + LWIP_DEBUGF(NETIF_DEBUG, ("tapif_init: out of memory for tapif\n")); + return ERR_MEM; + } + netif->state = tapif; + MIB2_INIT_NETIF(netif, snmp_ifType_other, 100000000); + + netif->name[0] = IFNAME0; + netif->name[1] = IFNAME1; +#if LWIP_IPV4 + netif->output = etharp_output; +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + netif->output_ip6 = ethip6_output; +#endif /* LWIP_IPV6 */ + netif->linkoutput = low_level_output; + netif->mtu = 1500; + + low_level_init(netif); + + return ERR_OK; +} + + +/*-----------------------------------------------------------------------------------*/ +void +tapif_poll(struct netif *netif) +{ + tapif_input(netif); +} + +#if NO_SYS + +int +tapif_select(struct netif *netif) +{ + fd_set fdset; + int ret; + struct timeval tv; + struct tapif *tapif; + u32_t msecs = sys_timeouts_sleeptime(); + + tapif = (struct tapif *)netif->state; + + tv.tv_sec = msecs / 1000; + tv.tv_usec = (msecs % 1000) * 1000; + + FD_ZERO(&fdset); + FD_SET(tapif->fd, &fdset); + + ret = select(tapif->fd + 1, &fdset, NULL, NULL, &tv); + if (ret > 0) { + tapif_input(netif); + } + return ret; +} + +#else /* NO_SYS */ + +static void +tapif_thread(void *arg) +{ + struct netif *netif; + struct tapif *tapif; + fd_set fdset; + int ret; + + netif = (struct netif *)arg; + tapif = (struct tapif *)netif->state; + + while(1) { + FD_ZERO(&fdset); + FD_SET(tapif->fd, &fdset); + + /* Wait for a packet to arrive. */ + ret = select(tapif->fd + 1, &fdset, NULL, NULL, NULL); + + if(ret == 1) { + /* Handle incoming packet. */ + tapif_input(netif); + } else if(ret == -1) { + perror("tapif_thread: select"); + } + } +} + +#endif /* NO_SYS */ diff --git a/middleware/lwip/contrib/ports/unix/port/perf.c b/middleware/lwip/contrib/ports/unix/port/perf.c new file mode 100644 index 0000000..bed4614 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/perf.c @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "arch/perf.h" + +#include + +static FILE *f; + +void +perf_print(unsigned long c1l, unsigned long c1h, + unsigned long c2l, unsigned long c2h, + char *key) +{ + unsigned long sub_ms, sub_ls; + + sub_ms = c2h - c1h; + sub_ls = c2l - c1l; + if (c2l < c1l) sub_ms--; + fprintf(f, "%s: %.8lu%.8lu\n", key, sub_ms, sub_ls); + fflush(NULL); +} + +void +perf_print_times(struct tms *start, struct tms *end, char *key) +{ + fprintf(f, "%s: %lu\n", key, end->tms_stime - start->tms_stime); + fflush(NULL); +} + +void +perf_init(char *fname) +{ + f = fopen(fname, "w"); +} + diff --git a/middleware/lwip/contrib/ports/unix/port/sys_arch.c b/middleware/lwip/contrib/ports/unix/port/sys_arch.c new file mode 100644 index 0000000..9f7c8d3 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/port/sys_arch.c @@ -0,0 +1,771 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +/* + * Wed Apr 17 16:05:29 EDT 2002 (James Roth) + * + * - Fixed an unlikely sys_thread_new() race condition. + * + * - Made current_thread() work with threads which where + * not created with sys_thread_new(). This includes + * the main thread and threads made with pthread_create(). + * + * - Catch overflows where more than SYS_MBOX_SIZE messages + * are waiting to be read. The sys_mbox_post() routine + * will block until there is more room instead of just + * leaking messages. + */ +#define _GNU_SOURCE /* pull in pthread_setname_np() on Linux */ + +#include "lwip/debug.h" + +#include +#include +#include +#include +#include +#include +#include + +#include "lwip/def.h" + +#ifdef LWIP_UNIX_MACH +#include +#include +#endif + +#include "lwip/sys.h" +#include "lwip/opt.h" +#include "lwip/stats.h" +#include "lwip/tcpip.h" + +/* Return code for an interrupted timed wait */ +#define SYS_ARCH_INTR 0xfffffffeUL + +u32_t +lwip_port_rand(void) +{ + return (u32_t)rand(); +} + +static void +get_monotonic_time(struct timespec *ts) +{ +#ifdef LWIP_UNIX_MACH + /* darwin impl (no CLOCK_MONOTONIC) */ + u64_t t = mach_absolute_time(); + mach_timebase_info_data_t timebase_info = {0, 0}; + mach_timebase_info(&timebase_info); + u64_t nano = (t * timebase_info.numer) / (timebase_info.denom); + u64_t sec = nano/1000000000L; + nano -= sec * 1000000000L; + ts->tv_sec = sec; + ts->tv_nsec = nano; +#else + clock_gettime(CLOCK_MONOTONIC, ts); +#endif +} + +#if SYS_LIGHTWEIGHT_PROT +static pthread_mutex_t lwprot_mutex = PTHREAD_MUTEX_INITIALIZER; +static pthread_t lwprot_thread = (pthread_t)0xDEAD; +static int lwprot_count = 0; +#endif /* SYS_LIGHTWEIGHT_PROT */ + +#if !NO_SYS + +static struct sys_thread *threads = NULL; +static pthread_mutex_t threads_mutex = PTHREAD_MUTEX_INITIALIZER; + +struct sys_mbox_msg { + struct sys_mbox_msg *next; + void *msg; +}; + +#define SYS_MBOX_SIZE 128 + +struct sys_mbox { + int first, last; + void *msgs[SYS_MBOX_SIZE]; + struct sys_sem *not_empty; + struct sys_sem *not_full; + struct sys_sem *mutex; + int wait_send; +}; + +struct sys_sem { + unsigned int c; + pthread_condattr_t condattr; + pthread_cond_t cond; + pthread_mutex_t mutex; +}; + +struct sys_mutex { + pthread_mutex_t mutex; +}; + +struct sys_thread { + struct sys_thread *next; + pthread_t pthread; +}; + +static struct sys_sem *sys_sem_new_internal(u8_t count); +static void sys_sem_free_internal(struct sys_sem *sem); + +static u32_t cond_wait(pthread_cond_t * cond, pthread_mutex_t * mutex, + u32_t timeout); + +/*-----------------------------------------------------------------------------------*/ +/* Threads */ +static struct sys_thread * +introduce_thread(pthread_t id) +{ + struct sys_thread *thread; + + thread = (struct sys_thread *)malloc(sizeof(struct sys_thread)); + + if (thread != NULL) { + pthread_mutex_lock(&threads_mutex); + thread->next = threads; + thread->pthread = id; + threads = thread; + pthread_mutex_unlock(&threads_mutex); + } + + return thread; +} + +struct thread_wrapper_data +{ + lwip_thread_fn function; + void *arg; +}; + +static void * +thread_wrapper(void *arg) +{ + struct thread_wrapper_data *thread_data = (struct thread_wrapper_data *)arg; + + thread_data->function(thread_data->arg); + + /* we should never get here */ + free(arg); + return NULL; +} + +sys_thread_t +sys_thread_new(const char *name, lwip_thread_fn function, void *arg, int stacksize, int prio) +{ + int code; + pthread_t tmp; + struct sys_thread *st = NULL; + struct thread_wrapper_data *thread_data; + LWIP_UNUSED_ARG(name); + LWIP_UNUSED_ARG(stacksize); + LWIP_UNUSED_ARG(prio); + + thread_data = (struct thread_wrapper_data *)malloc(sizeof(struct thread_wrapper_data)); + thread_data->arg = arg; + thread_data->function = function; + code = pthread_create(&tmp, + NULL, + thread_wrapper, + thread_data); + +#ifdef LWIP_UNIX_LINUX + pthread_setname_np(tmp, name); +#endif + + if (0 == code) { + st = introduce_thread(tmp); + } + + if (NULL == st) { + LWIP_DEBUGF(SYS_DEBUG, ("sys_thread_new: pthread_create %d, st = 0x%lx", + code, (unsigned long)st)); + abort(); + } + return st; +} + +#if LWIP_TCPIP_CORE_LOCKING +static pthread_t lwip_core_lock_holder_thread_id; +void sys_lock_tcpip_core(void) +{ + sys_mutex_lock(&lock_tcpip_core); + lwip_core_lock_holder_thread_id = pthread_self(); +} + +void sys_unlock_tcpip_core(void) +{ + lwip_core_lock_holder_thread_id = 0; + sys_mutex_unlock(&lock_tcpip_core); +} +#endif /* LWIP_TCPIP_CORE_LOCKING */ + +static pthread_t lwip_tcpip_thread_id; +void sys_mark_tcpip_thread(void) +{ + lwip_tcpip_thread_id = pthread_self(); +} + +void sys_check_core_locking(void) +{ + /* Embedded systems should check we are NOT in an interrupt context here */ + + if (lwip_tcpip_thread_id != 0) { + pthread_t current_thread_id = pthread_self(); + +#if LWIP_TCPIP_CORE_LOCKING + LWIP_ASSERT("Function called without core lock", current_thread_id == lwip_core_lock_holder_thread_id); +#else /* LWIP_TCPIP_CORE_LOCKING */ + LWIP_ASSERT("Function called from wrong thread", current_thread_id == lwip_tcpip_thread_id); +#endif /* LWIP_TCPIP_CORE_LOCKING */ + } +} + +/*-----------------------------------------------------------------------------------*/ +/* Mailbox */ +err_t +sys_mbox_new(struct sys_mbox **mb, int size) +{ + struct sys_mbox *mbox; + LWIP_UNUSED_ARG(size); + + mbox = (struct sys_mbox *)malloc(sizeof(struct sys_mbox)); + if (mbox == NULL) { + return ERR_MEM; + } + mbox->first = mbox->last = 0; + mbox->not_empty = sys_sem_new_internal(0); + mbox->not_full = sys_sem_new_internal(0); + mbox->mutex = sys_sem_new_internal(1); + mbox->wait_send = 0; + + SYS_STATS_INC_USED(mbox); + *mb = mbox; + return ERR_OK; +} + +void +sys_mbox_free(struct sys_mbox **mb) +{ + if ((mb != NULL) && (*mb != SYS_MBOX_NULL)) { + struct sys_mbox *mbox = *mb; + SYS_STATS_DEC(mbox.used); + sys_arch_sem_wait(&mbox->mutex, 0); + + sys_sem_free_internal(mbox->not_empty); + sys_sem_free_internal(mbox->not_full); + sys_sem_free_internal(mbox->mutex); + mbox->not_empty = mbox->not_full = mbox->mutex = NULL; + /* LWIP_DEBUGF("sys_mbox_free: mbox 0x%lx\n", mbox); */ + free(mbox); + } +} + +err_t +sys_mbox_trypost(struct sys_mbox **mb, void *msg) +{ + u8_t first; + struct sys_mbox *mbox; + LWIP_ASSERT("invalid mbox", (mb != NULL) && (*mb != NULL)); + mbox = *mb; + + sys_arch_sem_wait(&mbox->mutex, 0); + + LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_trypost: mbox %p msg %p\n", + (void *)mbox, (void *)msg)); + + if ((mbox->last + 1) >= (mbox->first + SYS_MBOX_SIZE)) { + sys_sem_signal(&mbox->mutex); + return ERR_MEM; + } + + mbox->msgs[mbox->last % SYS_MBOX_SIZE] = msg; + + if (mbox->last == mbox->first) { + first = 1; + } else { + first = 0; + } + + mbox->last++; + + if (first) { + sys_sem_signal(&mbox->not_empty); + } + + sys_sem_signal(&mbox->mutex); + + return ERR_OK; +} + +err_t +sys_mbox_trypost_fromisr(sys_mbox_t *q, void *msg) +{ + return sys_mbox_trypost(q, msg); +} + +void +sys_mbox_post(struct sys_mbox **mb, void *msg) +{ + u8_t first; + struct sys_mbox *mbox; + LWIP_ASSERT("invalid mbox", (mb != NULL) && (*mb != NULL)); + mbox = *mb; + + sys_arch_sem_wait(&mbox->mutex, 0); + + LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_post: mbox %p msg %p\n", (void *)mbox, (void *)msg)); + + while ((mbox->last + 1) >= (mbox->first + SYS_MBOX_SIZE)) { + mbox->wait_send++; + sys_sem_signal(&mbox->mutex); + sys_arch_sem_wait(&mbox->not_full, 0); + sys_arch_sem_wait(&mbox->mutex, 0); + mbox->wait_send--; + } + + mbox->msgs[mbox->last % SYS_MBOX_SIZE] = msg; + + if (mbox->last == mbox->first) { + first = 1; + } else { + first = 0; + } + + mbox->last++; + + if (first) { + sys_sem_signal(&mbox->not_empty); + } + + sys_sem_signal(&mbox->mutex); +} + +u32_t +sys_arch_mbox_tryfetch(struct sys_mbox **mb, void **msg) +{ + struct sys_mbox *mbox; + LWIP_ASSERT("invalid mbox", (mb != NULL) && (*mb != NULL)); + mbox = *mb; + + sys_arch_sem_wait(&mbox->mutex, 0); + + if (mbox->first == mbox->last) { + sys_sem_signal(&mbox->mutex); + return SYS_MBOX_EMPTY; + } + + if (msg != NULL) { + LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_tryfetch: mbox %p msg %p\n", (void *)mbox, *msg)); + *msg = mbox->msgs[mbox->first % SYS_MBOX_SIZE]; + } + else{ + LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_tryfetch: mbox %p, null msg\n", (void *)mbox)); + } + + mbox->first++; + + if (mbox->wait_send) { + sys_sem_signal(&mbox->not_full); + } + + sys_sem_signal(&mbox->mutex); + + return 0; +} + +u32_t +sys_arch_mbox_fetch(struct sys_mbox **mb, void **msg, u32_t timeout) +{ + u32_t time_needed = 0; + struct sys_mbox *mbox; + LWIP_ASSERT("invalid mbox", (mb != NULL) && (*mb != NULL)); + mbox = *mb; + + /* The mutex lock is quick so we don't bother with the timeout + stuff here. */ + sys_arch_sem_wait(&mbox->mutex, 0); + + while (mbox->first == mbox->last) { + sys_sem_signal(&mbox->mutex); + + /* We block while waiting for a mail to arrive in the mailbox. We + must be prepared to timeout. */ + if (timeout != 0) { + time_needed = sys_arch_sem_wait(&mbox->not_empty, timeout); + + if (time_needed == SYS_ARCH_TIMEOUT) { + return SYS_ARCH_TIMEOUT; + } + } else { + sys_arch_sem_wait(&mbox->not_empty, 0); + } + + sys_arch_sem_wait(&mbox->mutex, 0); + } + + if (msg != NULL) { + LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_fetch: mbox %p msg %p\n", (void *)mbox, *msg)); + *msg = mbox->msgs[mbox->first % SYS_MBOX_SIZE]; + } + else{ + LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_fetch: mbox %p, null msg\n", (void *)mbox)); + } + + mbox->first++; + + if (mbox->wait_send) { + sys_sem_signal(&mbox->not_full); + } + + sys_sem_signal(&mbox->mutex); + + return time_needed; +} + +/*-----------------------------------------------------------------------------------*/ +/* Semaphore */ +static struct sys_sem * +sys_sem_new_internal(u8_t count) +{ + struct sys_sem *sem; + + sem = (struct sys_sem *)malloc(sizeof(struct sys_sem)); + if (sem != NULL) { + sem->c = count; + pthread_condattr_init(&(sem->condattr)); +#if !(defined(LWIP_UNIX_MACH) || (defined(LWIP_UNIX_ANDROID) && __ANDROID_API__ < 21)) + pthread_condattr_setclock(&(sem->condattr), CLOCK_MONOTONIC); +#endif + pthread_cond_init(&(sem->cond), &(sem->condattr)); + pthread_mutex_init(&(sem->mutex), NULL); + } + return sem; +} + +err_t +sys_sem_new(struct sys_sem **sem, u8_t count) +{ + SYS_STATS_INC_USED(sem); + *sem = sys_sem_new_internal(count); + if (*sem == NULL) { + return ERR_MEM; + } + return ERR_OK; +} + +static u32_t +cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex, u32_t timeout) +{ + struct timespec rtime1, rtime2, ts; + int ret; + +#ifdef LWIP_UNIX_HURD + #define pthread_cond_wait pthread_hurd_cond_wait_np + #define pthread_cond_timedwait pthread_hurd_cond_timedwait_np +#endif + + if (timeout == 0) { + ret = pthread_cond_wait(cond, mutex); + return +#ifdef LWIP_UNIX_HURD + /* On the Hurd, ret == 1 means the RPC has been cancelled. + * The thread is awakened (not terminated) and execution must continue */ + ret == 1 ? SYS_ARCH_INTR : +#endif + (u32_t)ret; + } + + /* Get a timestamp and add the timeout value. */ + get_monotonic_time(&rtime1); +#if defined(LWIP_UNIX_MACH) || (defined(LWIP_UNIX_ANDROID) && __ANDROID_API__ < 21) + ts.tv_sec = timeout / 1000L; + ts.tv_nsec = (timeout % 1000L) * 1000000L; + ret = pthread_cond_timedwait_relative_np(cond, mutex, &ts); +#else + ts.tv_sec = rtime1.tv_sec + timeout / 1000L; + ts.tv_nsec = rtime1.tv_nsec + (timeout % 1000L) * 1000000L; + if (ts.tv_nsec >= 1000000000L) { + ts.tv_sec++; + ts.tv_nsec -= 1000000000L; + } + + ret = pthread_cond_timedwait(cond, mutex, &ts); +#endif + if (ret == ETIMEDOUT) { + return SYS_ARCH_TIMEOUT; +#ifdef LWIP_UNIX_HURD + /* On the Hurd, ret == 1 means the RPC has been cancelled. + * The thread is awakened (not terminated) and execution must continue */ + } else if (ret == EINTR) { + return SYS_ARCH_INTR; +#endif + } + + /* Calculate for how long we waited for the cond. */ + get_monotonic_time(&rtime2); + ts.tv_sec = rtime2.tv_sec - rtime1.tv_sec; + ts.tv_nsec = rtime2.tv_nsec - rtime1.tv_nsec; + if (ts.tv_nsec < 0) { + ts.tv_sec--; + ts.tv_nsec += 1000000000L; + } + return (u32_t)(ts.tv_sec * 1000L + ts.tv_nsec / 1000000L); +} + +u32_t +sys_arch_sem_wait(struct sys_sem **s, u32_t timeout) +{ + u32_t time_needed = 0; + struct sys_sem *sem; + LWIP_ASSERT("invalid sem", (s != NULL) && (*s != NULL)); + sem = *s; + + pthread_mutex_lock(&(sem->mutex)); + while (sem->c <= 0) { + if (timeout > 0) { + time_needed = cond_wait(&(sem->cond), &(sem->mutex), timeout); + + if (time_needed == SYS_ARCH_TIMEOUT) { + pthread_mutex_unlock(&(sem->mutex)); + return SYS_ARCH_TIMEOUT; +#ifdef LWIP_UNIX_HURD + } else if(time_needed == SYS_ARCH_INTR) { + pthread_mutex_unlock(&(sem->mutex)); + return 0; +#endif + } + /* pthread_mutex_unlock(&(sem->mutex)); + return time_needed; */ + } else if(cond_wait(&(sem->cond), &(sem->mutex), 0)) { + /* Some error happened or the thread has been awakened but not by lwip */ + pthread_mutex_unlock(&(sem->mutex)); + return 0; + } + } + sem->c--; + pthread_mutex_unlock(&(sem->mutex)); + return (u32_t)time_needed; +} + +void +sys_sem_signal(struct sys_sem **s) +{ + struct sys_sem *sem; + LWIP_ASSERT("invalid sem", (s != NULL) && (*s != NULL)); + sem = *s; + + pthread_mutex_lock(&(sem->mutex)); + sem->c++; + + if (sem->c > 1) { + sem->c = 1; + } + + pthread_cond_broadcast(&(sem->cond)); + pthread_mutex_unlock(&(sem->mutex)); +} + +static void +sys_sem_free_internal(struct sys_sem *sem) +{ + pthread_cond_destroy(&(sem->cond)); + pthread_condattr_destroy(&(sem->condattr)); + pthread_mutex_destroy(&(sem->mutex)); + free(sem); +} + +void +sys_sem_free(struct sys_sem **sem) +{ + if ((sem != NULL) && (*sem != SYS_SEM_NULL)) { + SYS_STATS_DEC(sem.used); + sys_sem_free_internal(*sem); + } +} + +/*-----------------------------------------------------------------------------------*/ +/* Mutex */ +/** Create a new mutex + * @param mutex pointer to the mutex to create + * @return a new mutex */ +err_t +sys_mutex_new(struct sys_mutex **mutex) +{ + struct sys_mutex *mtx; + + mtx = (struct sys_mutex *)malloc(sizeof(struct sys_mutex)); + if (mtx != NULL) { + pthread_mutex_init(&(mtx->mutex), NULL); + *mutex = mtx; + return ERR_OK; + } + else { + return ERR_MEM; + } +} + +/** Lock a mutex + * @param mutex the mutex to lock */ +void +sys_mutex_lock(struct sys_mutex **mutex) +{ + pthread_mutex_lock(&((*mutex)->mutex)); +} + +/** Unlock a mutex + * @param mutex the mutex to unlock */ +void +sys_mutex_unlock(struct sys_mutex **mutex) +{ + pthread_mutex_unlock(&((*mutex)->mutex)); +} + +/** Delete a mutex + * @param mutex the mutex to delete */ +void +sys_mutex_free(struct sys_mutex **mutex) +{ + pthread_mutex_destroy(&((*mutex)->mutex)); + free(*mutex); +} + +#endif /* !NO_SYS */ + +/*-----------------------------------------------------------------------------------*/ +/* Time */ +u32_t +sys_now(void) +{ + struct timespec ts; + u32_t now; + + get_monotonic_time(&ts); + now = (u32_t)(ts.tv_sec * 1000L + ts.tv_nsec / 1000000L); +#ifdef LWIP_FUZZ_SYS_NOW + now += sys_now_offset; +#endif + return now; +} + +u32_t +sys_jiffies(void) +{ + struct timespec ts; + + get_monotonic_time(&ts); + return (u32_t)(ts.tv_sec * 1000000000L + ts.tv_nsec); +} + +/*-----------------------------------------------------------------------------------*/ +/* Init */ + +void +sys_init(void) +{ +} + +/*-----------------------------------------------------------------------------------*/ +/* Critical section */ +#if SYS_LIGHTWEIGHT_PROT +/** sys_prot_t sys_arch_protect(void) + +This optional function does a "fast" critical region protection and returns +the previous protection level. This function is only called during very short +critical regions. An embedded system which supports ISR-based drivers might +want to implement this function by disabling interrupts. Task-based systems +might want to implement this by using a mutex or disabling tasking. This +function should support recursive calls from the same task or interrupt. In +other words, sys_arch_protect() could be called while already protected. In +that case the return value indicates that it is already protected. + +sys_arch_protect() is only required if your port is supporting an operating +system. +*/ +sys_prot_t +sys_arch_protect(void) +{ + /* Note that for the UNIX port, we are using a lightweight mutex, and our + * own counter (which is locked by the mutex). The return code is not actually + * used. */ + if (lwprot_thread != pthread_self()) + { + /* We are locking the mutex where it has not been locked before * + * or is being locked by another thread */ + pthread_mutex_lock(&lwprot_mutex); + lwprot_thread = pthread_self(); + lwprot_count = 1; + } + else + /* It is already locked by THIS thread */ + lwprot_count++; + return 0; +} + +/** void sys_arch_unprotect(sys_prot_t pval) + +This optional function does a "fast" set of critical region protection to the +value specified by pval. See the documentation for sys_arch_protect() for +more information. This function is only required if your port is supporting +an operating system. +*/ +void +sys_arch_unprotect(sys_prot_t pval) +{ + LWIP_UNUSED_ARG(pval); + if (lwprot_thread == pthread_self()) + { + lwprot_count--; + if (lwprot_count == 0) + { + lwprot_thread = (pthread_t) 0xDEAD; + pthread_mutex_unlock(&lwprot_mutex); + } + } +} +#endif /* SYS_LIGHTWEIGHT_PROT */ + +#if !NO_SYS +/* get keyboard state to terminate the debug app by using select */ +int +lwip_unix_keypressed(void) +{ + struct timeval tv = { 0L, 0L }; + fd_set fds; + FD_ZERO(&fds); + FD_SET(0, &fds); + return select(1, &fds, NULL, NULL, &tv); +} +#endif /* !NO_SYS */ diff --git a/middleware/lwip/contrib/ports/unix/setup-tapif b/middleware/lwip/contrib/ports/unix/setup-tapif new file mode 100644 index 0000000..d5c4935 --- /dev/null +++ b/middleware/lwip/contrib/ports/unix/setup-tapif @@ -0,0 +1,22 @@ +#!/bin/bash + +# This script needs bridge-util debian package or similar +# for other distros. + +# Run using "source setup-tapif" to get exported PRECONFIGURED_TAPIF variable +# Alternatively, add "export PRECONFIGURED_TAPIF=tap0" to ~/.bashrc + +# http://backreference.org/2010/03/26/tuntap-interface-tutorial/ + +# After executing this script, start example_app. +# Enter 192.168.1.200 or "http://lwip.local/" (Zeroconf) +# in your webbrowser to see example_app webpage. + +export PRECONFIGURED_TAPIF=tap0 + +sudo ip tuntap add dev $PRECONFIGURED_TAPIF mode tap user `whoami` +sudo ip link set $PRECONFIGURED_TAPIF up +sudo brctl addbr lwipbridge +sudo brctl addif lwipbridge $PRECONFIGURED_TAPIF +sudo ip addr add 192.168.1.1/24 dev lwipbridge +sudo ip link set dev lwipbridge up diff --git a/middleware/lwip/contrib/ports/win32/Common.mk b/middleware/lwip/contrib/ports/win32/Common.mk new file mode 100644 index 0000000..2260162 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/Common.mk @@ -0,0 +1,51 @@ +# +# Copyright (c) 2001, 2002 Swedish Institute of Computer Science. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT +# SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT +# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY +# OF SUCH DAMAGE. +# +# This file is part of the lwIP TCP/IP stack. +# +# Author: Adam Dunkels +# + +CC=gcc + +# Architecture specific files. +LWIPARCH?=$(CONTRIBDIR)/ports/win32 +SYSARCH?=$(LWIPARCH)/sys_arch.c +ARCHFILES=$(SYSARCH) $(LWIPARCH)/pcapif.c \ + $(LWIPARCH)/pcapif_helper.c $(LWIPARCH)/sio.c + +WIN32_COMMON_MK_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST)))) +include $(WIN32_COMMON_MK_DIR)/../Common.allports.mk + +PCAPDIR=$(PCAP_DIR)/Include +LDFLAGS+=-L$(PCAP_DIR)/lib -lwpcap -lpacket +# -Wno-format: GCC complains about non-standard 64 bit modifier needed for MSVC runtime +CFLAGS+=-I$(PCAPDIR) -Wno-format + +pcapif.o: + $(CC) $(CFLAGS) -Wno-error -Wno-redundant-decls -c $(<:.o=.c) +pcapif_helper.o: + $(CC) $(CFLAGS) -std=c99 -Wno-redundant-decls -c $(<:.o=.c) diff --git a/middleware/lwip/contrib/ports/win32/check/check_stdint.h b/middleware/lwip/contrib/ports/win32/check/check_stdint.h new file mode 100644 index 0000000..c2c100d --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/check/check_stdint.h @@ -0,0 +1 @@ +/* deliberateliy empty */ diff --git a/middleware/lwip/contrib/ports/win32/check/config.h b/middleware/lwip/contrib/ports/win32/check/config.h new file mode 100644 index 0000000..69c04f9 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/check/config.h @@ -0,0 +1,30 @@ +/* config.h for check-0.11.0 on win32 under MSVC/MinGW */ + +#ifdef _MSC_VER + +typedef unsigned int pid_t; +typedef unsigned int uint32_t; + +typedef int ssize_t; +#define snprintf _snprintf + +#define HAVE_DECL_STRDUP 1 +#define HAVE_DECL_FILENO 1 +#define HAVE_DECL_PUTENV 1 + +#define _CRT_SECURE_NO_WARNINGS + +/* disable some warnings */ +#pragma warning (disable: 4090) /* const assigned to non-const */ +#pragma warning (disable: 4996) /* fileno is deprecated */ + +#endif /* _ MSC_VER */ + + +#define LWIP_UNITTESTS_NOFORK + +#include + +typedef unsigned int clockid_t; +typedef unsigned int timer_t; +#define STRUCT_TIMESPEC_DEFINITION_MISSING diff --git a/middleware/lwip/contrib/ports/win32/check/stdbool.h b/middleware/lwip/contrib/ports/win32/check/stdbool.h new file mode 100644 index 0000000..1f504d9 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/check/stdbool.h @@ -0,0 +1,9 @@ +#ifndef MY_STDBOOL_H +#define MY_STDBOOL_H + +typedef int bool; +#define true 1 +#define false 0 +#define __bool_true_false_are_defined 1 + +#endif diff --git a/middleware/lwip/contrib/ports/win32/check/sys/time.h b/middleware/lwip/contrib/ports/win32/check/sys/time.h new file mode 100644 index 0000000..d71d827 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/check/sys/time.h @@ -0,0 +1,12 @@ +#ifndef LWIP_SYS__TIME_H +#define LWIP_SYS__TIME_H + +#include /* time_t */ + +struct timeval { + time_t tv_sec; /* seconds */ + long tv_usec; /* and microseconds */ +}; +int gettimeofday(struct timeval* tp, void* tzp); + +#endif diff --git a/middleware/lwip/contrib/ports/win32/check/time.c b/middleware/lwip/contrib/ports/win32/check/time.c new file mode 100644 index 0000000..b5947cd --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/check/time.c @@ -0,0 +1,66 @@ +#include + +#include +#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS) + #define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64 +#else + #define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL +#endif + +#include "config.h" + +struct timezone +{ + int tz_minuteswest; /* minutes W of Greenwich */ + int tz_dsttime; /* type of dst correction */ +}; + +int gettimeofday(struct timeval *tv, struct timezone *tz) +{ + FILETIME ft; + unsigned __int64 tmpres = 0; + static int tzflag; + + if (NULL != tv) { + GetSystemTimeAsFileTime(&ft); + + tmpres |= ft.dwHighDateTime; + tmpres <<= 32; + tmpres |= ft.dwLowDateTime; + + /*converting file time to unix epoch*/ + tmpres -= DELTA_EPOCH_IN_MICROSECS; + tmpres /= 10; /*convert into microseconds*/ + tv->tv_sec = (long)(tmpres / 1000000UL); + tv->tv_usec = (long)(tmpres % 1000000UL); + } + + if (NULL != tz) { + if (!tzflag) { + _tzset(); + tzflag++; + } + tz->tz_minuteswest = _timezone / 60; + tz->tz_dsttime = _daylight; + } + + return 0; +} + +struct tm * +localtime_r(const time_t *timer, struct tm *result) +{ + struct tm *local_result; + + if (result == NULL) { + return NULL; + } + + local_result = localtime (timer); + if (local_result == NULL) { + return NULL; + } + + memcpy(result, local_result, sizeof(*result)); + return result; +} diff --git a/middleware/lwip/contrib/ports/win32/check/unistd.h b/middleware/lwip/contrib/ports/win32/check/unistd.h new file mode 100644 index 0000000..332e6e1 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/check/unistd.h @@ -0,0 +1,7 @@ +#ifndef LWIP_UNISTD_H +#define LWIP_UNISTD_H + +/* include io.h for read() and write() */ +#include + +#endif diff --git a/middleware/lwip/contrib/ports/win32/example_app/CMakeLists.txt b/middleware/lwip/contrib/ports/win32/example_app/CMakeLists.txt new file mode 100644 index 0000000..417e2a4 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/example_app/CMakeLists.txt @@ -0,0 +1,23 @@ +include(${LWIP_DIR}/contrib/ports/CMakeCommon.cmake) + +set (LWIP_INCLUDE_DIRS + "${LWIP_DIR}/src/include" + "${LWIP_DIR}/contrib/" + "${LWIP_DIR}/contrib/ports/win32/include" + "${LWIP_DIR}/contrib/examples/example_app" +) + +include(${LWIP_DIR}/src/Filelists.cmake) +include(${LWIP_DIR}/contrib/Filelists.cmake) +include(${LWIP_DIR}/contrib/ports/win32/Filelists.cmake) + +add_executable(example_app ${LWIP_DIR}/contrib/examples/example_app/test.c default_netif.c) +target_include_directories(example_app PRIVATE ${LWIP_INCLUDE_DIRS}) +target_compile_options(example_app PRIVATE ${LWIP_COMPILER_FLAGS}) +target_compile_definitions(example_app PRIVATE ${LWIP_DEFINITIONS} ${LWIP_MBEDTLS_DEFINITIONS}) +target_link_libraries(example_app ${LWIP_SANITIZER_LIBS} lwipcontribexamples lwipcontribapps lwipcontribaddons lwipallapps lwipcore lwipcontribportwindows lwipmbedtls) + +add_executable(makefsdata ${lwipmakefsdata_SRCS}) +target_compile_options(makefsdata PRIVATE ${LWIP_COMPILER_FLAGS}) +target_include_directories(makefsdata PRIVATE ${LWIP_INCLUDE_DIRS}) +target_link_libraries(makefsdata ${LWIP_SANITIZER_LIBS} lwipcore lwipcontribportwindows) diff --git a/middleware/lwip/contrib/ports/win32/example_app/Makefile b/middleware/lwip/contrib/ports/win32/example_app/Makefile new file mode 100644 index 0000000..452af7a --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/example_app/Makefile @@ -0,0 +1,55 @@ +# +# Copyright (c) 2001, 2002 Swedish Institute of Computer Science. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT +# SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT +# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY +# OF SUCH DAMAGE. +# +# This file is part of the lwIP TCP/IP stack. +# +# Author: Adam Dunkels +# + +all compile: example_app makefsdata +.PHONY: all + +include ../Common.mk + +CFLAGS+=-I$(CONTRIBDIR)/examples/example_app + +MAKEFSDATAOBJS=$(notdir $(MAKEFSDATAFILES:.c=.o)) + +clean: + cmd /c del /q *.o $(LWIPLIBCOMMON) $(APPLIB) test.exe *.s .depend* *.map + +depend dep: .depend + +include .depend + +.depend: $(CONTRIBDIR)/examples/example_app/test.c default_netif.c $(LWIPFILES) $(APPFILES) $(MAKEFSDATAFILES) + $(CCDEP) $(CFLAGS) -MM $^ > .depend || cmd /c del .depend + +example_app: .depend $(LWIPLIBCOMMON) $(APPLIB) default_netif.o test.o + $(CC) $(CFLAGS) -o example_app test.o default_netif.o -Wl,--start-group $(APPLIB) $(LWIPLIBCOMMON) -Wl,--end-group $(LDFLAGS) -Xlinker -Map=test.map + +makefsdata: .depend $(MAKEFSDATAOBJS) + $(CC) $(CFLAGS) -o makefsdata $(MAKEFSDATAOBJS) diff --git a/middleware/lwip/contrib/ports/win32/example_app/default_netif.c b/middleware/lwip/contrib/ports/win32/example_app/default_netif.c new file mode 100644 index 0000000..9af2ecc --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/example_app/default_netif.c @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#include "lwip/netif.h" +#include "lwip/ip_addr.h" +#include "lwip/sys.h" +#include "lwip/tcpip.h" +#include "../pcapif.h" +#include "examples/example_app/default_netif.h" + +static struct netif netif; + +#if LWIP_IPV4 +#define NETIF_ADDRS ipaddr, netmask, gw, +void init_default_netif(const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw) +#else +#define NETIF_ADDRS +void init_default_netif(void) +#endif +{ +#if NO_SYS + netif_add(&netif, NETIF_ADDRS NULL, pcapif_init, netif_input); +#else /* NO_SYS */ + netif_add(&netif, NETIF_ADDRS NULL, pcapif_init, tcpip_input); +#endif /* NO_SYS */ + netif_set_default(&netif); +} + +void +default_netif_poll(void) +{ +#if !PCAPIF_RX_USE_THREAD + /* check for packets and link status*/ + pcapif_poll(&netif); + /* When pcapif_poll comes back, there are not packets, so sleep to + prevent 100% CPU load. Don't do this in an embedded system since it + increases latency! */ + sys_msleep(1); +#else /* !PCAPIF_RX_USE_THREAD */ + sys_msleep(50); +#endif /* !PCAPIF_RX_USE_THREAD */ +} + +void +default_netif_shutdown(void) +{ + /* release the pcap library... */ + pcapif_shutdown(&netif); +} diff --git a/middleware/lwip/contrib/ports/win32/include/arch/bpstruct.h b/middleware/lwip/contrib/ports/win32/include/arch/bpstruct.h new file mode 100644 index 0000000..1d81e3f --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/include/arch/bpstruct.h @@ -0,0 +1 @@ +#pragma pack(push,1) diff --git a/middleware/lwip/contrib/ports/win32/include/arch/cc.h b/middleware/lwip/contrib/ports/win32/include/arch/cc.h new file mode 100644 index 0000000..b738d67 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/include/arch/cc.h @@ -0,0 +1,110 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_ARCH_CC_H +#define LWIP_ARCH_CC_H + +#ifdef _MSC_VER +#pragma warning (disable: 4127) /* conditional expression is constant */ +#pragma warning (disable: 4996) /* 'strncpy' was declared deprecated */ +#pragma warning (disable: 4103) /* structure packing changed by including file */ +#pragma warning (disable: 4820) /* 'x' bytes padding added after data member 'y' */ +#pragma warning (disable: 4711) /* The compiler performed inlining on the given function, although it was not marked for inlining */ +#endif + +#ifdef _MSC_VER +#if _MSC_VER >= 1910 +#include /* use MSVC errno for >= 2017 */ +#else +#define LWIP_PROVIDE_ERRNO /* provide errno for MSVC pre-2017 */ +#endif +#else /* _MSC_VER */ +#define LWIP_PROVIDE_ERRNO /* provide errno for non-MSVC */ +#endif /* _MSC_VER */ + +/* Define platform endianness (might already be defined) */ +#ifndef BYTE_ORDER +#define BYTE_ORDER LITTLE_ENDIAN +#endif /* BYTE_ORDER */ + +typedef int sys_prot_t; + +#ifdef _MSC_VER +/* define _INTPTR for Win32 MSVC stdint.h */ +#define _INTPTR 2 + +/* Do not use lwIP default definitions for format strings + * because these do not work with MSVC 2010 compiler (no inttypes.h) + */ +#define LWIP_NO_INTTYPES_H 1 + +/* Define (sn)printf formatters for these lwIP types */ +#define X8_F "02x" +#define U16_F "hu" +#define U32_F "lu" +#define S32_F "ld" +#define X32_F "lx" + +#define S16_F "hd" +#define X16_F "hx" +#define SZT_F "lu" +#endif /* _MSC_VER */ + +/* Compiler hints for packing structures */ +#define PACK_STRUCT_USE_INCLUDES + +#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \ + LWIP_PLATFORM_DIAG(("Assertion \"%s\" failed at line %d in %s\n", message, __LINE__, __FILE__)); \ + handler;} } while(0) + +#ifdef _MSC_VER +/* C runtime functions redefined */ +#if _MSC_VER < 1910 +#define snprintf _snprintf +#endif +#define strdup _strdup +#endif + +/* Define an example for LWIP_PLATFORM_DIAG: since this uses varargs and the old +* C standard lwIP targets does not support this in macros, we have extra brackets +* around the arguments, which are left out in the following macro definition: +*/ +#if !defined(LWIP_TESTMODE) || !LWIP_TESTMODE +void lwip_win32_platform_diag(const char *format, ...); +#define LWIP_PLATFORM_DIAG(x) lwip_win32_platform_diag x +#endif + +extern unsigned int lwip_port_rand(void); +#define LWIP_RAND() ((uint32_t)lwip_port_rand()) + +#define PPP_INCLUDE_SETTINGS_HEADER + +#endif /* LWIP_ARCH_CC_H */ diff --git a/middleware/lwip/contrib/ports/win32/include/arch/epstruct.h b/middleware/lwip/contrib/ports/win32/include/arch/epstruct.h new file mode 100644 index 0000000..65898b5 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/include/arch/epstruct.h @@ -0,0 +1 @@ +#pragma pack(pop) diff --git a/middleware/lwip/contrib/ports/win32/include/arch/perf.h b/middleware/lwip/contrib/ports/win32/include/arch/perf.h new file mode 100644 index 0000000..d1150b1 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/include/arch/perf.h @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2001, Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_PERF_H +#define LWIP_PERF_H + +#define PERF_START /* null definition */ +#define PERF_STOP(x) /* null definition */ + +#endif /* LWIP_PERF_H */ diff --git a/middleware/lwip/contrib/ports/win32/include/arch/sys_arch.h b/middleware/lwip/contrib/ports/win32/include/arch/sys_arch.h new file mode 100644 index 0000000..ded1028 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/include/arch/sys_arch.h @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_ARCH_SYS_ARCH_H +#define LWIP_ARCH_SYS_ARCH_H + +/* HANDLE is used for sys_sem_t but we won't include windows.h */ +struct _sys_sem { + void *sem; +}; +typedef struct _sys_sem sys_sem_t; +#define sys_sem_valid_val(sema) (((sema).sem != NULL) && ((sema).sem != (void*)-1)) +#define sys_sem_valid(sema) (((sema) != NULL) && sys_sem_valid_val(*(sema))) +#define sys_sem_set_invalid(sema) ((sema)->sem = NULL) + +/* HANDLE is used for sys_mutex_t but we won't include windows.h */ +struct _sys_mut { + void *mut; +}; +typedef struct _sys_mut sys_mutex_t; +#define sys_mutex_valid_val(mutex) (((mutex).mut != NULL) && ((mutex).mut != (void*)-1)) +#define sys_mutex_valid(mutex) (((mutex) != NULL) && sys_mutex_valid_val(*(mutex))) +#define sys_mutex_set_invalid(mutex) ((mutex)->mut = NULL) + +#ifndef MAX_QUEUE_ENTRIES +#define MAX_QUEUE_ENTRIES 100 +#endif +struct lwip_mbox { + void* sem; + void* q_mem[MAX_QUEUE_ENTRIES]; + u32_t head, tail; +}; +typedef struct lwip_mbox sys_mbox_t; +#define SYS_MBOX_NULL NULL +#define sys_mbox_valid_val(mbox) (((mbox).sem != NULL) && ((mbox).sem != (void*)-1)) +#define sys_mbox_valid(mbox) ((mbox != NULL) && sys_mbox_valid_val(*(mbox))) +#define sys_mbox_set_invalid(mbox) ((mbox)->sem = NULL) + +/* DWORD (thread id) is used for sys_thread_t but we won't include windows.h */ +typedef u32_t sys_thread_t; + +sys_sem_t* sys_arch_netconn_sem_get(void); +void sys_arch_netconn_sem_alloc(void); +void sys_arch_netconn_sem_free(void); +#define LWIP_NETCONN_THREAD_SEM_GET() sys_arch_netconn_sem_get() +#define LWIP_NETCONN_THREAD_SEM_ALLOC() sys_arch_netconn_sem_alloc() +#define LWIP_NETCONN_THREAD_SEM_FREE() sys_arch_netconn_sem_free() + +#define LWIP_EXAMPLE_APP_ABORT() lwip_win32_keypressed() +int lwip_win32_keypressed(void); + +/* Threading options */ +void sys_mark_tcpip_thread(void); +#define LWIP_MARK_TCPIP_THREAD() sys_mark_tcpip_thread() + +#if LWIP_TCPIP_CORE_LOCKING +void sys_lock_tcpip_core(void); +#define LOCK_TCPIP_CORE() sys_lock_tcpip_core() +void sys_unlock_tcpip_core(void); +#define UNLOCK_TCPIP_CORE() sys_unlock_tcpip_core() +#endif + +#endif /* LWIP_ARCH_SYS_ARCH_H */ diff --git a/middleware/lwip/contrib/ports/win32/msvc/build_coverity.cmd b/middleware/lwip/contrib/ports/win32/msvc/build_coverity.cmd new file mode 100644 index 0000000..f96cc63 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/build_coverity.cmd @@ -0,0 +1,26 @@ +@echo off +rem Usage: pass the path to cov-build.exe (with trailing backslash, without the exe) as first parameter +rem ATTENTION: this deletes the output folder "cov-int" and the output file "cov-int.zip" first! + +set devenv="%ProgramFiles%\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe" +if not exist %devenv% set devenv="%ProgramFiles%\Microsoft Visual Studio 10.0\Common7\IDE\vcexpress.exe" +if not exist %devenv% set devenv="%ProgramFiles(x86)%\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe" +if not exist %devenv% set devenv="%ProgramFiles(x86)%\Microsoft Visual Studio 10.0\Common7\IDE\vcexpress.exe" +set covbuild=%1cov-build.exe +set covoutput=cov-int +set zip7="c:\Program Files\7-Zip\7z.exe" + +pushd %~dp0 + +if exist %covoutput% rd /s /q %covoutput% +if exist %covoutput%.zip del %covoutput%.zip + +%covbuild% --dir %covoutput% %devenv% lwip_test.sln /build Debug || goto error + +if exist %zip7% goto dozip +echo error: 7zip not found at \"%zip7% +goto error +:dozip +%zip7% a %covoutput%.zip %covoutput% +:error +popd \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/libcheck.vcxproj b/middleware/lwip/contrib/ports/win32/msvc/libcheck.vcxproj new file mode 100644 index 0000000..e63731e --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/libcheck.vcxproj @@ -0,0 +1,100 @@ + + + + + Debug + Win32 + + + Release + Win32 + + + + {EBB156DC-01BF-47B2-B69C-1A750B6B5F09} + libcheck + + + + StaticLibrary + MultiByte + true + + + StaticLibrary + MultiByte + + + + + + + + + + + + + <_ProjectFileVersion>10.0.40219.1 + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + + + + Disabled + ..\check;..\..\..\..\..\check\src;%(AdditionalIncludeDirectories) + _LIB;WIN32;_DEBUG;HAVE_CONFIG_H;%(PreprocessorDefinitions) + true + EnableFastChecks + MultiThreadedDebug + Level3 + EditAndContinue + + + + + MaxSpeed + true + ..\check;..\..\..\..\..\check\src;%(AdditionalIncludeDirectories) + WIN32;NDEBUG;_LIB;HAVE_CONFIG_H;%(PreprocessorDefinitions) + MultiThreaded + true + Level3 + ProgramDatabase + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/libcheck.vcxproj.filters b/middleware/lwip/contrib/ports/win32/msvc/libcheck.vcxproj.filters new file mode 100644 index 0000000..d8bfdfc --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/libcheck.vcxproj.filters @@ -0,0 +1,96 @@ + + + + + {05d172f9-8ca6-4d9c-96e4-2b0480a8222f} + + + {eb9ccf88-7e08-4202-bb4f-5a51443fa480} + + + {3f044d95-ab52-45ce-b4ae-27797eb221b2} + + + {abb21abe-51c2-45df-bdc9-8e00ce7fe404} + + + + + Win32 + + + Win32 + + + Win32\sys + + + src + + + src + + + src + + + src + + + src + + + src + + + src + + + src + + + src + + + libcompat + + + + + Win32 + + + src + + + src + + + src + + + src + + + src + + + src + + + src + + + src + + + src + + + libcompat + + + libcompat + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/lwIP.vcxproj b/middleware/lwip/contrib/ports/win32/msvc/lwIP.vcxproj new file mode 100644 index 0000000..0004592 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/lwIP.vcxproj @@ -0,0 +1,589 @@ + + + + + Debug unittests + Win32 + + + Debug + Win32 + + + Release unittests + Win32 + + + Release + Win32 + + + + {2CC276FA-B226-49C9-8F82-7FCD5A228E28} + + + + StaticLibrary + false + MultiByte + + + StaticLibrary + false + MultiByte + + + StaticLibrary + false + MultiByte + + + StaticLibrary + false + MultiByte + + + + + + + + + + + + + + + + + + + + + + + <_ProjectFileVersion>10.0.40219.1 + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + + + + MaxSpeed + OnlyExplicitInline + ..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..\..\..\examples\example_app;..\..\..\apps\snmp_private_mib;%(AdditionalIncludeDirectories) + WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions) + true + MultiThreaded + true + $(IntDir)$(ProjectName).pdb + EnableAllWarnings + true + ProgramDatabase + Default + true + + + NDEBUG;%(PreprocessorDefinitions) + 0x0407 + + + true + + + + + Disabled + ..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..\..\..\examples\example_app;..\..\..\apps\snmp_private_mib;%(AdditionalIncludeDirectories) + _LIB;WIN32;_DEBUG;LWIP_DEBUG;%(PreprocessorDefinitions) + EnableFastChecks + MultiThreadedDebug + + + $(IntDir)$(ProjectName).pdb + EnableAllWarnings + true + EditAndContinue + Default + true + + + _DEBUG;%(PreprocessorDefinitions) + 0x0407 + + + true + + + + + Disabled + ..\..\..\..\test\unit;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..\..\..\examples\example_app;%(AdditionalIncludeDirectories) + _LIB;WIN32;_DEBUG;LWIP_DEBUG;%(PreprocessorDefinitions) + EnableFastChecks + MultiThreadedDebug + + + $(IntDir)$(ProjectName).pdb + EnableAllWarnings + true + EditAndContinue + Default + true + + + _DEBUG;%(PreprocessorDefinitions) + 0x0407 + + + true + + + + + MaxSpeed + OnlyExplicitInline + ..\..\..\..\test\unit;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..\..\..\examples\example_app;%(AdditionalIncludeDirectories) + WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions) + true + MultiThreaded + true + $(IntDir)$(ProjectName).pdb + EnableAllWarnings + true + ProgramDatabase + Default + true + + + NDEBUG;%(PreprocessorDefinitions) + 0x0407 + + + true + + + + + true + true + true + true + + + Document + true + true + true + true + + + true + true + true + true + + + true + true + true + true + + + true + true + true + true + + + true + true + true + true + + + Document + true + true + true + true + + + Document + + + Document + true + true + true + true + + + + + + + + + + + + + + + + true + true + true + true + + + + + true + true + true + true + + + + + + + + + + + + ..\..\..\..\..\mbedtls\include;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;..\..\..\apps\snmp_private_mib;%(AdditionalIncludeDirectories) + ..\..\..\..\..\mbedtls\include;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;..\..\..\apps\snmp_private_mib;%(AdditionalIncludeDirectories) + ..\..\..\..\..\mbedtls\include;..\..\..\..\test\unit;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;%(AdditionalIncludeDirectories) + ..\..\..\..\..\mbedtls\include;..\..\..\..\test\unit;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;%(AdditionalIncludeDirectories) + + + ..\..\..\..\..\mbedtls\include;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;..\..\..\apps\snmp_private_mib;%(AdditionalIncludeDirectories) + ..\..\..\..\..\mbedtls\include;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;..\..\..\apps\snmp_private_mib;%(AdditionalIncludeDirectories) + ..\..\..\..\..\mbedtls\include;..\..\..\..\test\unit;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;%(AdditionalIncludeDirectories) + ..\..\..\..\..\mbedtls\include;..\..\..\..\test\unit;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;%(AdditionalIncludeDirectories) + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + true + true + true + true + + + + + + + + + + + + + + + + + + + + + + + + + + + + ..\..\..\..\..\mbedtls\include;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;..\..\..\apps\snmp_private_mib;%(AdditionalIncludeDirectories) + ..\..\..\..\..\mbedtls\include;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;..\..\..\apps\snmp_private_mib;%(AdditionalIncludeDirectories) + ..\..\..\..\..\mbedtls\include;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;..\..\..\apps\snmp_private_mib;%(AdditionalIncludeDirectories) + ..\..\..\..\..\mbedtls\include;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;..\..\..\apps\snmp_private_mib;%(AdditionalIncludeDirectories) + + + + + true + true + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/lwIP.vcxproj.filters b/middleware/lwip/contrib/ports/win32/msvc/lwIP.vcxproj.filters new file mode 100644 index 0000000..bb90c3e --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/lwIP.vcxproj.filters @@ -0,0 +1,1075 @@ + + + + + {51757ae3-05ca-4e6a-a745-19c9ffc62278} + + + {e40d58ed-58be-4618-9664-6df29e27f835} + + + {5752fd8f-90c3-4381-8b6a-86c09a2f9859} + + + {48a805a9-e5d2-4eed-b29c-02b57140a03d} + + + {8a8dba58-934c-4292-aa8d-d20e2b801bd4} + + + {20594706-d6e1-4503-bc38-f297892d752a} + + + {1075aec7-b001-47bd-9846-ed635687e26e} + + + {9b7b3b39-f3b0-4915-81d9-d66c3443c348} + + + {75f75ac5-73a4-4458-bc23-eaed529c37e1} + + + {97772339-4210-4a32-82d0-d25269d3e3d6} + + + {06467ead-0683-44db-bc41-6aa5a82490f0} + + + {166a3203-ccc3-4eff-9eaa-1e5648a7fb5b} + + + {6b889738-b59a-450a-b4dd-0d1986bffca1} + + + {c64c0664-acd9-4f2f-8bd7-78250f4b7b4b} + + + {56e8d041-f1e0-4b02-a173-563190c0eb4a} + + + {dc783ea8-63ed-4de6-b576-a87c318a7ad1} + + + {7822191b-1cd0-4ce8-a852-da0474977fc4} + + + {b22a3b7a-d076-44a5-9a16-1e6f49cd5a94} + + + {0109fdbb-3aed-45fa-a308-493988755364} + + + {32a9c4ed-7687-48bb-8b9d-482c2f6c7554} + + + {c6c4a1a7-dab8-4463-b155-07e7303b54e4} + + + {2e87d0f7-38a3-45f8-870d-f8622c20e9d9} + + + {45f6a578-1f4b-4741-9b55-5b5084ecc1d9} + + + {92215272-cad9-4cf0-a2e1-705f6220e2a9} + + + {bdd3995a-aa34-4a4e-891e-a13c5373d618} + + + {d0ce6e8b-4b30-498b-a1bb-aecee958df42} + + + {6db73869-23f6-48ab-8d92-c8e478e55892} + + + {65542a97-c588-47b3-b1f6-ae51645c736e} + + + {ffd283f4-44f0-4be2-83a3-8bd55f29e80f} + + + {d9456888-d299-48ff-8165-ff499e5a0ba3} + + + {5aa786e4-df26-432c-b32c-9c4fac00b951} + + + {8fb42d78-1e77-4208-b457-44f41c4cc901} + + + {81578f11-9d3c-4bc8-a518-6f78f082fe0e} + + + {f8d65087-0cee-46de-8d8c-dca719bf2a4b} + + + {91d8473a-deb5-4943-8b63-b43d86c7fa1c} + + + {15855a74-48c6-473c-b4cb-40ec065698d4} + + + {2c795490-531d-4a03-b30d-73760b09975a} + + + + + + + + + + doc + + + doc + + + doc + + + doc + + + doc + + + doc\doxygen + + + doc\doxygen + + + doc\doxygen + + + example_app + + + + + src\api + + + src\api + + + src\api + + + src\api + + + src\api + + + src\api + + + src\api + + + src\api + + + src\apps\lwiperf + + + src\apps\netbiosns + + + src\apps\sntp + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core + + + src\core\ipv4 + + + src\core\ipv4 + + + src\core\ipv4 + + + src\core\ipv4 + + + src\core\ipv4 + + + src\core\ipv4 + + + src\core\ipv4 + + + src\core\ipv6 + + + src\core\ipv6 + + + src\core\ipv6 + + + src\core\ipv6 + + + src\core\ipv6 + + + src\core\ipv6 + + + src\core\ipv6 + + + src\core\ipv6 + + + src\core\ipv6 + + + src\netif + + + src\netif + + + src\netif + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp + + + src\netif\ppp\polarssl + + + src\netif\ppp\polarssl + + + src\netif\ppp\polarssl + + + src\netif\ppp\polarssl + + + src\netif\ppp\polarssl + + + arch + + + arch + + + src\apps\http + + + src\apps\http + + + src\apps\http + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\core + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\netif\ppp + + + src\core\ipv4 + + + src\core\ipv4 + + + src\core + + + src\apps\mdns + + + src\apps\snmp + + + doc + + + src\apps\tftp + + + src\apps\mqtt + + + src\api + + + src\netif + + + src\apps\snmp + + + src\apps\snmp + + + src\core + + + src\core + + + src\apps\altcp_tls + + + src\apps\altcp_tls + + + src\apps\smtp + + + src\netif + + + src\apps\http + + + src\core + + + src\apps\http + + + src\netif + + + src\netif + + + src\netif + + + src\apps\mdns + + + src\apps\mdns + + + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\netif + + + src\include\netif + + + src\include\netif + + + src\include\netif + + + src\include\netif + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp + + + src\include\netif\ppp\polarssl + + + src\include\netif\ppp\polarssl + + + src\include\netif\ppp\polarssl + + + src\include\netif\ppp\polarssl + + + src\include\netif\ppp\polarssl + + + arch + + + arch + + + arch + + + arch + + + arch + + + src\include\lwip\priv + + + src\include\lwip\priv + + + src\include\lwip\priv + + + src\include\lwip\priv + + + src\include\lwip\priv + + + src\apps\http + + + src\apps\http + + + src\apps\snmp + + + src\apps\snmp + + + src\apps\snmp + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\apps\snmp + + + src\include\netif\ppp + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\apps\snmp + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\apps + + + src\include\lwip\prot + + + src\include\lwip\prot + + + doc\doxygen + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip + + + src\include\lwip\priv + + + src\include\lwip\apps + + + src\include\lwip + + + src\include\lwip + + + src\include\lwip\priv + + + src\include\netif + + + src\include\netif + + + src\include\lwip + + + src\include\lwip + + + src\apps\altcp_tls + + + src\apps\altcp_tls + + + src\include\lwip + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\priv + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\compat\posix\sys + + + src\include\compat\posix + + + src\include\compat\posix\net + + + src\include\compat\posix\arpa + + + src\include\compat\stdc + + + src\include\lwip\prot + + + src\include\lwip\prot + + + src\include\lwip\priv + + + src\include\lwip\priv + + + src\include\lwip\apps + + + src\include\lwip\apps + + + src\include\lwip\prot + + + src\include\netif + + + src\include\netif + + + src\include\netif + + + src\include\netif + + + example_app + + + example_app + + + example_app + + + example_app + + + example_app + + + src\include\lwip\apps + + + src\include\lwip\apps + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/lwIP_Test.sln b/middleware/lwip/contrib/ports/win32/msvc/lwIP_Test.sln new file mode 100644 index 0000000..ce59abd --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/lwIP_Test.sln @@ -0,0 +1,37 @@ +Microsoft Visual Studio Solution File, Format Version 11.00 +# Visual C++ Express 2010 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lwIP_Test", "lwIP_Test.vcxproj", "{8CC0CE51-32CF-4585-BFAF-A9343BC5A96D}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lwIP pcapif", "lwIP_pcapif.vcxproj", "{6F44E49E-9F21-4144-91EC-53B92AEF62CE}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lwIP", "lwIP.vcxproj", "{2CC276FA-B226-49C9-8F82-7FCD5A228E28}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "makefsdata", "makefsdata.vcxproj", "{0BFC0F21-8E84-4E68-A9E1-CE2A09B72F6D}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Win32 = Debug|Win32 + Release|Win32 = Release|Win32 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {8CC0CE51-32CF-4585-BFAF-A9343BC5A96D}.Debug|Win32.ActiveCfg = Debug|Win32 + {8CC0CE51-32CF-4585-BFAF-A9343BC5A96D}.Debug|Win32.Build.0 = Debug|Win32 + {8CC0CE51-32CF-4585-BFAF-A9343BC5A96D}.Release|Win32.ActiveCfg = Release|Win32 + {8CC0CE51-32CF-4585-BFAF-A9343BC5A96D}.Release|Win32.Build.0 = Release|Win32 + {6F44E49E-9F21-4144-91EC-53B92AEF62CE}.Debug|Win32.ActiveCfg = Debug|Win32 + {6F44E49E-9F21-4144-91EC-53B92AEF62CE}.Debug|Win32.Build.0 = Debug|Win32 + {6F44E49E-9F21-4144-91EC-53B92AEF62CE}.Release|Win32.ActiveCfg = Release|Win32 + {6F44E49E-9F21-4144-91EC-53B92AEF62CE}.Release|Win32.Build.0 = Release|Win32 + {2CC276FA-B226-49C9-8F82-7FCD5A228E28}.Debug|Win32.ActiveCfg = Debug|Win32 + {2CC276FA-B226-49C9-8F82-7FCD5A228E28}.Debug|Win32.Build.0 = Debug|Win32 + {2CC276FA-B226-49C9-8F82-7FCD5A228E28}.Release|Win32.ActiveCfg = Release|Win32 + {2CC276FA-B226-49C9-8F82-7FCD5A228E28}.Release|Win32.Build.0 = Release|Win32 + {0BFC0F21-8E84-4E68-A9E1-CE2A09B72F6D}.Debug|Win32.ActiveCfg = Debug|Win32 + {0BFC0F21-8E84-4E68-A9E1-CE2A09B72F6D}.Debug|Win32.Build.0 = Debug|Win32 + {0BFC0F21-8E84-4E68-A9E1-CE2A09B72F6D}.Release|Win32.ActiveCfg = Release|Win32 + {0BFC0F21-8E84-4E68-A9E1-CE2A09B72F6D}.Release|Win32.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/middleware/lwip/contrib/ports/win32/msvc/lwIP_Test.vcxproj b/middleware/lwip/contrib/ports/win32/msvc/lwIP_Test.vcxproj new file mode 100644 index 0000000..372e918 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/lwIP_Test.vcxproj @@ -0,0 +1,205 @@ + + + + + Debug + Win32 + + + Release + Win32 + + + + {8CC0CE51-32CF-4585-BFAF-A9343BC5A96D} + lwIP_test + + + + Application + false + MultiByte + + + Application + false + MultiByte + + + + + + + + + + + + + + + <_ProjectFileVersion>10.0.40219.1 + .\$(Configuration)\ + .\$(Configuration)\$(ProjectName)\ + false + true + + + + .\Release/test.tlb + + + + + MaxSpeed + OnlyExplicitInline + ..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..\..\..\examples\example_app;..\..\..;%(AdditionalIncludeDirectories) + WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_DEPRECATE;%(PreprocessorDefinitions) + true + MultiThreaded + true + + + $(IntDir)$(TargetName).pch + $(IntDir)$(ProjectName).pdb + EnableAllWarnings + true + Default + true + + + NDEBUG;%(PreprocessorDefinitions) + 0x0407 + + + Packet.lib;wpcap.lib;%(AdditionalDependencies) + true + $(PCAP_DIR)\Lib;..\..\..\..\..\winpcap\WpdPack\Lib;%(AdditionalLibraryDirectories) + .\Release/test.pdb + Console + false + + + MachineX86 + true + $(TargetDir)$(TargetName).map + + + + + .\Debug/test.tlb + + + + + Disabled + ..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..\..\..\examples\example_app;..\..\..;%(AdditionalIncludeDirectories) + _CONSOLE;WIN32;_DEBUG;LWIP_DEBUG;_CRT_SECURE_NO_DEPRECATE;%(PreprocessorDefinitions) + EnableFastChecks + MultiThreadedDebug + + + $(IntDir)$(TargetName).pch + $(IntDir)$(ProjectName).pdb + EnableAllWarnings + true + EditAndContinue + Default + true + + + _DEBUG;%(PreprocessorDefinitions) + 0x0407 + + + Packet.lib;wpcap.lib;%(AdditionalDependencies) + true + $(PCAP_DIR)\Lib;..\..\..\..\..\winpcap\WpdPack\Lib;%(AdditionalLibraryDirectories) + true + Console + false + + + MachineX86 + false + $(TargetDir)$(TargetName).map + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + {2cc276fa-b226-49c9-8f82-7fcd5a228e28} + false + + + {6f44e49e-9f21-4144-91ec-53b92aef62ce} + false + + + + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/lwIP_Test.vcxproj.filters b/middleware/lwip/contrib/ports/win32/msvc/lwIP_Test.vcxproj.filters new file mode 100644 index 0000000..52f7732 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/lwIP_Test.vcxproj.filters @@ -0,0 +1,252 @@ + + + + + {e858c3d0-1558-4d47-bc6a-9d4a55ce3d3a} + cpp;c;cxx;rc;def;r;odl;idl;hpj;bat + + + {0582eefd-a68e-45f8-b93c-f828c4794f30} + + + {ed0627c2-099a-4da8-af0c-142003828f9f} + + + {4ffb2268-6fc6-44d7-8e3b-2a3f68b8d5a3} + + + {93b36161-88b2-448c-9c45-ac6f27b98290} + + + {6456d2d6-61e6-4c99-9f1f-1f225437a642} + + + {75bb877e-aa45-4e2e-82fe-946ddadc6a64} + + + {78411edf-fe39-4edb-a6bd-2833755e0342} + + + {531dd0cf-ec13-42b7-a3bb-b837382d4ecd} + + + {d71bdb12-c5ed-4823-99f0-2d537765a2eb} + + + {0b9db8c7-f352-4ca6-86c6-1a6c58482c5d} + + + {97f0ea5c-16cf-4640-a6b3-ace059ed2388} + + + {24079d2d-aab1-49f9-b0fa-57910a18b93a} + + + {d38ed32b-9498-429e-a02c-08332c463725} + + + {672a49fd-94ff-4126-8de3-e96c9c32dfb8} + + + {e5276e3f-3e2a-4376-aee3-85aafd12c77b} + + + {f6d95ce0-df4f-4988-8654-624468dd4ecd} + + + {a37e5539-232e-4d91-9c10-3d7a851b8c4c} + + + {a2a65260-5055-4a0d-bd0b-4a3ca3560918} + + + {aa359e5e-131e-4f20-9e5d-416f9ae76abd} + + + {bd6f1fcc-c88f-4b96-a267-401f6bf9898b} + + + {1098bc59-6867-48a3-afa4-b896510241d1} + + + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\addons\tcp_isn + + + Source Files\addons\ipv6_static_routing + + + Source Files\examples\httpd\fs_example + + + Source Files\examples\httpd\ssi_example + + + Source Files\examples\snmp\snmp_private_mib + + + Source Files\examples\snmp\snmp_v3 + + + Source Files\examples\httpd\cgi_example + + + Source Files\examples\httpd\genfiles_example + + + Source Files\examples\httpd\post_example + + + Source Files\examples\mdns + + + Source Files\examples\tftp + + + Source Files\examples\snmp + + + Source Files\examples\sntp + + + Source Files\examples\ppp + + + Source Files\examples\lwiperf + + + Source Files\examples\mqtt + + + Source Files + + + Source Files + + + Source Files\examples\httpd\https_example + + + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\apps + + + Source Files\addons\tcp_isn + + + Source Files\addons\ipv6_static_routing + + + Source Files\examples\httpd\fs_example + + + Source Files\examples\httpd\ssi_example + + + Source Files\examples\snmp\snmp_private_mib + + + Source Files\examples\snmp\snmp_v3 + + + Source Files\examples\httpd\cgi_example + + + Source Files\examples\httpd\genfiles_example + + + Source Files\examples\mdns + + + Source Files\examples\tftp + + + Source Files\examples\snmp + + + Source Files\examples\sntp + + + Source Files\examples\ppp + + + Source Files\examples\lwiperf + + + Source Files\examples\mqtt + + + Source Files\examples\httpd\https_example + + + + + Source Files\addons\ipv6_static_routing + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/lwIP_pcapif.vcxproj b/middleware/lwip/contrib/ports/win32/msvc/lwIP_pcapif.vcxproj new file mode 100644 index 0000000..193c9ca --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/lwIP_pcapif.vcxproj @@ -0,0 +1,111 @@ + + + + + Debug + Win32 + + + Release + Win32 + + + + lwIP pcapif + {6F44E49E-9F21-4144-91EC-53B92AEF62CE} + lwIP pcapif + + + + StaticLibrary + false + MultiByte + + + StaticLibrary + false + MultiByte + + + + + + + + + + + + + + + <_ProjectFileVersion>10.0.40219.1 + .\$(Configuration)\ + .\$(Configuration)\$(ProjectName)\ + + + + Disabled + ..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..\..\..\examples\example_app;.\;$(PCAP_DIR)\Include;..\..\..\..\..\winpcap\WpdPack\Include\;%(AdditionalIncludeDirectories) + _LIB;WIN32;_DEBUG;LWIP_DEBUG;%(PreprocessorDefinitions) + EnableFastChecks + MultiThreadedDebug + + + $(IntDir)$(ProjectName).pdb + EnableAllWarnings + true + EditAndContinue + Default + true + + + _DEBUG;%(PreprocessorDefinitions) + 0x0407 + + + + + + MaxSpeed + OnlyExplicitInline + ..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..\..\..\examples\example_app;.\;$(PCAP_DIR)\Include;..\..\..\..\..\winpcap\WpdPack\Include\;%(AdditionalIncludeDirectories) + WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions) + true + MultiThreaded + true + + + $(IntDir)$(TargetName).pch + $(IntDir)$(ProjectName).pdb + EnableAllWarnings + true + Default + true + + + NDEBUG;%(PreprocessorDefinitions) + 0x0407 + + + true + + + + + + + + + + + + + {2cc276fa-b226-49c9-8f82-7fcd5a228e28} + false + + + + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/lwIP_pcapif.vcxproj.filters b/middleware/lwip/contrib/ports/win32/msvc/lwIP_pcapif.vcxproj.filters new file mode 100644 index 0000000..f933f17 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/lwIP_pcapif.vcxproj.filters @@ -0,0 +1,28 @@ + + + + + {0d38b8c3-e694-4572-89b8-fc6e825a092d} + cpp;c;cxx;rc;def;r;odl;idl;hpj;bat + + + {e5ce29d5-319e-4e99-978b-b88e8d6167e4} + + + + + Source Files + + + Source Files + + + + + Header Files + + + Header Files + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/lwIP_unittests.sln b/middleware/lwip/contrib/ports/win32/msvc/lwIP_unittests.sln new file mode 100644 index 0000000..2dfefb0 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/lwIP_unittests.sln @@ -0,0 +1,31 @@ +Microsoft Visual Studio Solution File, Format Version 11.00 +# Visual C++ Express 2010 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lwip_unittests", "lwip_unittests.vcxproj", "{6CCABAA4-F86F-4119-AFF8-43C9A4A234C2}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lwIP", "lwIP.vcxproj", "{2CC276FA-B226-49C9-8F82-7FCD5A228E28}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libcheck", "libcheck.vcxproj", "{EBB156DC-01BF-47B2-B69C-1A750B6B5F09}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Win32 = Debug|Win32 + Release|Win32 = Release|Win32 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {6CCABAA4-F86F-4119-AFF8-43C9A4A234C2}.Debug|Win32.ActiveCfg = Debug|Win32 + {6CCABAA4-F86F-4119-AFF8-43C9A4A234C2}.Debug|Win32.Build.0 = Debug|Win32 + {6CCABAA4-F86F-4119-AFF8-43C9A4A234C2}.Release|Win32.ActiveCfg = Release|Win32 + {6CCABAA4-F86F-4119-AFF8-43C9A4A234C2}.Release|Win32.Build.0 = Release|Win32 + {2CC276FA-B226-49C9-8F82-7FCD5A228E28}.Debug|Win32.ActiveCfg = Debug unittests|Win32 + {2CC276FA-B226-49C9-8F82-7FCD5A228E28}.Debug|Win32.Build.0 = Debug unittests|Win32 + {2CC276FA-B226-49C9-8F82-7FCD5A228E28}.Release|Win32.ActiveCfg = Release unittests|Win32 + {2CC276FA-B226-49C9-8F82-7FCD5A228E28}.Release|Win32.Build.0 = Release unittests|Win32 + {EBB156DC-01BF-47B2-B69C-1A750B6B5F09}.Debug|Win32.ActiveCfg = Debug|Win32 + {EBB156DC-01BF-47B2-B69C-1A750B6B5F09}.Debug|Win32.Build.0 = Debug|Win32 + {EBB156DC-01BF-47B2-B69C-1A750B6B5F09}.Release|Win32.ActiveCfg = Release|Win32 + {EBB156DC-01BF-47B2-B69C-1A750B6B5F09}.Release|Win32.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/middleware/lwip/contrib/ports/win32/msvc/lwip_unittests.vcxproj b/middleware/lwip/contrib/ports/win32/msvc/lwip_unittests.vcxproj new file mode 100644 index 0000000..f859eaf --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/lwip_unittests.vcxproj @@ -0,0 +1,137 @@ + + + + + Debug + Win32 + + + Release + Win32 + + + + {6CCABAA4-F86F-4119-AFF8-43C9A4A234C2} + lwip_unittests + + + + Application + MultiByte + true + + + Application + MultiByte + + + + + + + + + + + + + <_ProjectFileVersion>10.0.40219.1 + $(Configuration)\$(ProjectName)\ + $(Configuration)\$(ProjectName)\ + + + + Disabled + ..\check;..\..\..\..\..\check\src;..\..\..\..\test\unit;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;%(AdditionalIncludeDirectories) + _LIB;WIN32;_DEBUG;LWIP_DEBUG;%(PreprocessorDefinitions) + true + EnableFastChecks + MultiThreadedDebug + EnableAllWarnings + EditAndContinue + 4820 + + + true + false + + + MachineX86 + + + + + MaxSpeed + true + ..\check;..\..\..\..\..\check\src;..\..\..\..\test\unit;..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..;%(AdditionalIncludeDirectories) + WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions) + MultiThreaded + true + Level4 + ProgramDatabase + + + true + true + true + false + + + MachineX86 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + {ebb156dc-01bf-47b2-b69c-1a750b6b5f09} + false + + + {2cc276fa-b226-49c9-8f82-7fcd5a228e28} + false + + + + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/lwip_unittests.vcxproj.filters b/middleware/lwip/contrib/ports/win32/msvc/lwip_unittests.vcxproj.filters new file mode 100644 index 0000000..09455da --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/lwip_unittests.vcxproj.filters @@ -0,0 +1,147 @@ + + + + + {e351c538-9f2b-4a01-bf46-3ee8873cbc0f} + + + {5805c4bc-32c1-49cf-a35e-af58757e2d7a} + + + {173ba4ab-b194-4933-8e02-319044c2a8fa} + + + {70c655a7-f40f-4728-b586-33fd9598b355} + + + {a6b60d4e-4b81-44f2-9408-2e45cc769391} + + + {d454902e-ce5b-48ae-a690-e6490bdbbf17} + + + {d9501476-6102-4f14-90bd-35322fbd2fb2} + + + {b04f182c-1910-456d-9388-397dfe82dbc9} + + + {fd48ae04-ec85-478f-a97c-a7c8384a2d94} + + + {fe93fc95-f1af-4a1f-a086-c1771dbf4d79} + + + {924d29be-e5e4-4b25-8bc4-92db91ce4c49} + + + + + core + + + core + + + tcp + + + tcp + + + tcp + + + udp + + + etharp + + + dhcp + + + + mdns + + + api + + + arch + + + mqtt + + + ip4 + + + core + + + core + + + core + + + ipv6 + + + + + core + + + core + + + tcp + + + tcp + + + tcp + + + udp + + + etharp + + + dhcp + + + + + mdns + + + api + + + arch + + + mqtt + + + ip4 + + + core + + + core + + + core + + + ipv6 + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/makefsdata.vcxproj b/middleware/lwip/contrib/ports/win32/msvc/makefsdata.vcxproj new file mode 100644 index 0000000..adb1d7e --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/makefsdata.vcxproj @@ -0,0 +1,99 @@ + + + + + Debug + Win32 + + + Release + Win32 + + + + + + + {0BFC0F21-8E84-4E68-A9E1-CE2A09B72F6D} + makefsdata + Win32Proj + + + + Application + Unicode + true + + + Application + Unicode + + + + + + + + + + + + + <_ProjectFileVersion>10.0.40219.1 + true + $(SolutionDir)$(Configuration)\ + $(Configuration)\ + false + + + + Disabled + ..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..\..\..\examples\example_app;%(AdditionalIncludeDirectories) + WIN32;_DEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions) + true + EnableFastChecks + MultiThreadedDebugDLL + + + Level4 + true + EditAndContinue + + + true + Console + false + + + MachineX86 + + + + + MaxSpeed + true + ..\..\..\..\src\include;..\..\..\..\src\include\ipv4;..\..\..\..\src\include\ipv6;..\include;..\..\..\examples\example_app;%(AdditionalIncludeDirectories) + WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions) + MultiThreadedDLL + true + + + Level4 + true + ProgramDatabase + + + true + Console + true + true + false + + + MachineX86 + + + + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/msvc/makefsdata.vcxproj.filters b/middleware/lwip/contrib/ports/win32/msvc/makefsdata.vcxproj.filters new file mode 100644 index 0000000..0f0210d --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/msvc/makefsdata.vcxproj.filters @@ -0,0 +1,14 @@ + + + + + {4FC737F1-C7A5-4376-A066-2A32D752A2FF} + cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx + + + + + Quelldateien + + + \ No newline at end of file diff --git a/middleware/lwip/contrib/ports/win32/pcapif.c b/middleware/lwip/contrib/ports/win32/pcapif.c new file mode 100644 index 0000000..3066abd --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/pcapif.c @@ -0,0 +1,1121 @@ +/** + * pcapif.c - This file is part of lwIP pcapif + * + **************************************************************************** + * + * This file is derived from an example in lwIP with the following license: + * + * Copyright (c) 2001, Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +/* include the port-dependent configuration */ +#include "lwipcfg.h" + +#include +#include + +#ifdef _MSC_VER +#pragma warning( push, 3 ) +#include "pcap.h" +#pragma warning ( pop ) +#else +/* e.g. mingw */ +#define _MSC_VER 1500 +#include "pcap.h" +#undef _MSC_VER +#endif + +#include "lwip/opt.h" + +#if LWIP_ETHERNET + +#include "pcapif.h" + +#include +#include +#include + +#include "lwip/debug.h" + +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/pbuf.h" +#include "lwip/stats.h" +#include "lwip/sys.h" +#include "lwip/ip.h" +#include "lwip/snmp.h" +#include "lwip/tcpip.h" +#include "lwip/timeouts.h" +#include "lwip/ethip6.h" + +#include "lwip/etharp.h" + +/* For compatibility with old pcap */ +#ifndef PCAP_OPENFLAG_PROMISCUOUS +#define PCAP_OPENFLAG_PROMISCUOUS 1 +#endif + +/** Set this to 0 to receive all multicast ethernet destination addresses */ +#ifndef PCAPIF_FILTER_GROUP_ADDRESSES +#define PCAPIF_FILTER_GROUP_ADDRESSES 1 +#endif + +/** Set this to 1 to receive all frames (also unicast to other addresses) + * In this mode, filtering out our own tx packets from loopback receiving + * is done via matching rx against recent tx (memcmp). + */ +#ifndef PCAPIF_RECEIVE_PROMISCUOUS +#define PCAPIF_RECEIVE_PROMISCUOUS 0 +#endif + +/* Define those to better describe your network interface. + For now, we use 'e0', 'e1', 'e2' and so on */ +#define IFNAME0 'e' +#define IFNAME1 '0' + +/** index of the network adapter to use for lwIP */ +#ifndef PACKET_LIB_ADAPTER_NR +#define PACKET_LIB_ADAPTER_NR 0 +#endif + +/** If 1, check link state and report it to lwIP. + * If 0, don't check link state (lwIP link state is always UP). + */ +#ifndef PCAPIF_HANDLE_LINKSTATE +#define PCAPIF_HANDLE_LINKSTATE 1 +#endif + +/** If 1, use PBUF_REF for RX (for testing purposes mainly). + * For this, LWIP_SUPPORT_CUSTOM_PBUF must be enabled. + * Also, PBUF_POOL_BUFSIZE must be set high enough to ensure all rx packets + * fit into a single pbuf. + */ +#ifndef PCAPIF_RX_REF +#define PCAPIF_RX_REF 0 +#endif + +/** This can be used when netif->state is used for something else in your + * application (e.g. when wrapping a class around this interface). Just + * make sure this define returns the state pointer set by + * pcapif_low_level_init() (e.g. by using an offset or a callback). + */ +#ifndef PCAPIF_GET_STATE_PTR +#define PCAPIF_GET_STATE_PTR(netif) ((netif)->state) +#endif + +/** Define this to 1 to allocate readonly pbufs for RX (needs PCAPIF_RX_REF, + * only implemented for windows, for now) + */ +#ifndef PCAPIF_RX_READONLY +#define PCAPIF_RX_READONLY 0 +#endif + +#if PCAPIF_HANDLE_LINKSTATE +#include "pcapif_helper.h" + +/* Define "PHY" delay when "link up" */ +#ifndef PCAPIF_LINKUP_DELAY +#define PCAPIF_LINKUP_DELAY 0 +#endif + +#define PCAPIF_LINKCHECK_INTERVAL_MS 500 + +/* link state notification macro */ +#if PCAPIF_LINKUP_DELAY +#define PCAPIF_NOTIFY_LINKSTATE(netif, linkfunc) sys_timeout(PCAPIF_LINKUP_DELAY, (sys_timeout_handler)linkfunc, netif) +#else /* PHY_LINKUP_DELAY */ +#define PCAPIF_NOTIFY_LINKSTATE(netif, linkfunc) linkfunc(netif) +#endif /* PHY_LINKUP_DELAY */ + +#endif /* PCAPIF_HANDLE_LINKSTATE */ + +/* Define PCAPIF_RX_LOCK_LWIP and PCAPIF_RX_UNLOCK_LWIP if you need to lock the lwIP core + before/after pbuf_alloc() or netif->input() are called on RX. */ +#ifndef PCAPIF_RX_LOCK_LWIP +#define PCAPIF_RX_LOCK_LWIP() +#endif +#ifndef PCAPIF_RX_UNLOCK_LWIP +#define PCAPIF_RX_UNLOCK_LWIP() +#endif + +#define ETH_MIN_FRAME_LEN 60U +#define ETH_MAX_FRAME_LEN 1518U + +#define ADAPTER_NAME_LEN 128 +#define ADAPTER_DESC_LEN 128 + +#if PCAPIF_RECEIVE_PROMISCUOUS +#ifndef PCAPIF_LOOPBACKFILTER_NUM_TX_PACKETS +#define PCAPIF_LOOPBACKFILTER_NUM_TX_PACKETS 128 +#endif +struct pcapipf_pending_packet { + struct pcapipf_pending_packet *next; + u16_t len; + u8_t data[ETH_MAX_FRAME_LEN]; +}; +#endif /* PCAPIF_RECEIVE_PROMISCUOUS */ + +/* Packet Adapter information */ +struct pcapif_private { + void *input_fn_arg; + pcap_t *adapter; + char name[ADAPTER_NAME_LEN]; + char description[ADAPTER_DESC_LEN]; + int shutdown_called; +#if PCAPIF_RX_USE_THREAD + volatile int rx_run; + volatile int rx_running; +#endif /* PCAPIF_RX_USE_THREAD */ +#if PCAPIF_HANDLE_LINKSTATE + struct pcapifh_linkstate *link_state; + enum pcapifh_link_event last_link_event; +#endif /* PCAPIF_HANDLE_LINKSTATE */ +#if PCAPIF_RECEIVE_PROMISCUOUS + struct pcapipf_pending_packet packets[PCAPIF_LOOPBACKFILTER_NUM_TX_PACKETS]; + struct pcapipf_pending_packet *tx_packets; + struct pcapipf_pending_packet *free_packets; +#endif /* PCAPIF_RECEIVE_PROMISCUOUS */ +}; + +#if PCAPIF_RECEIVE_PROMISCUOUS +static void +pcapif_init_tx_packets(struct pcapif_private *priv) +{ + int i; + priv->tx_packets = NULL; + priv->free_packets = NULL; + for (i = 0; i < PCAPIF_LOOPBACKFILTER_NUM_TX_PACKETS; i++) { + struct pcapipf_pending_packet *pack = &priv->packets[i]; + pack->len = 0; + pack->next = priv->free_packets; + priv->free_packets = pack; + } +} + +static void +pcapif_add_tx_packet(struct pcapif_private *priv, unsigned char *buf, u16_t tot_len) +{ + struct pcapipf_pending_packet *tx; + struct pcapipf_pending_packet *pack; + SYS_ARCH_DECL_PROTECT(lev); + + /* get a free packet (locked) */ + SYS_ARCH_PROTECT(lev); + pack = priv->free_packets; + if ((pack == NULL) && (priv->tx_packets != NULL)) { + /* no free packets, reuse the oldest */ + pack = priv->tx_packets; + priv->tx_packets = pack->next; + } + LWIP_ASSERT("no free packet", pack != NULL); + priv->free_packets = pack->next; + pack->next = NULL; + SYS_ARCH_UNPROTECT(lev); + + /* set up the packet (unlocked) */ + pack->len = tot_len; + memcpy(pack->data, buf, tot_len); + + /* put the packet on the list (locked) */ + SYS_ARCH_PROTECT(lev); + if (priv->tx_packets != NULL) { + for (tx = priv->tx_packets; tx->next != NULL; tx = tx->next); + LWIP_ASSERT("bug", tx != NULL); + tx->next = pack; + } else { + priv->tx_packets = pack; + } + SYS_ARCH_UNPROTECT(lev); +} + +static int +pcapif_compare_packets(struct pcapipf_pending_packet *pack, const void *packet, int packet_len) +{ + if (pack->len == packet_len) { + if (!memcmp(pack->data, packet, packet_len)) { + return 1; + } + } + return 0; +} + +static int +pcaipf_is_tx_packet(struct netif *netif, const void *packet, int packet_len) +{ + struct pcapif_private *priv = (struct pcapif_private*)PCAPIF_GET_STATE_PTR(netif); + struct pcapipf_pending_packet *iter, *last; + SYS_ARCH_DECL_PROTECT(lev); + + last = priv->tx_packets; + if (last == NULL) { + /* list is empty */ + return 0; + } + /* compare the first packet */ + if (pcapif_compare_packets(last, packet, packet_len)) { + SYS_ARCH_PROTECT(lev); + LWIP_ASSERT("list has changed", last == priv->tx_packets); + priv->tx_packets = last->next; + last->next = priv->free_packets; + priv->free_packets = last; + last->len = 0; + SYS_ARCH_UNPROTECT(lev); + return 1; + } + SYS_ARCH_PROTECT(lev); + for (iter = last->next; iter != NULL; last = iter, iter = iter->next) { + /* unlock while comparing (this works because we have a clean threading separation + of adding and removing items and adding is only done at the end) */ + SYS_ARCH_UNPROTECT(lev); + if (pcapif_compare_packets(iter, packet, packet_len)) { + SYS_ARCH_PROTECT(lev); + LWIP_ASSERT("last != NULL", last != NULL); + last->next = iter->next; + iter->next = priv->free_packets; + priv->free_packets = iter; + last->len = 0; + SYS_ARCH_UNPROTECT(lev); + return 1; + } + SYS_ARCH_PROTECT(lev); + } + SYS_ARCH_UNPROTECT(lev); + return 0; +} +#else /* PCAPIF_RECEIVE_PROMISCUOUS */ +#define pcapif_init_tx_packets(priv) +#define pcapif_add_tx_packet(priv, buf, tot_len) +static int +pcaipf_is_tx_packet(struct netif *netif, const void *packet, int packet_len) +{ + const struct eth_addr *src = (const struct eth_addr *)packet + 1; + if (packet_len >= (ETH_HWADDR_LEN * 2)) { + /* Don't let feedback packets through (limitation in winpcap?) */ + if(!memcmp(src, netif->hwaddr, ETH_HWADDR_LEN)) { + return 1; + } + } + return 0; +} +#endif /* PCAPIF_RECEIVE_PROMISCUOUS */ + +#if PCAPIF_RX_REF +struct pcapif_pbuf_custom +{ + struct pbuf_custom pc; +#if PCAPIF_RX_READONLY + void *ro_mem; +#else + struct pbuf* p; +#endif +}; +#endif /* PCAPIF_RX_REF */ + +/* Forward declarations. */ +static void pcapif_input(u_char *user, const struct pcap_pkthdr *pkt_header, const u_char *packet); + +#ifdef PACKET_LIB_GET_ADAPTER_NETADDRESS +/** Get the index of an adapter by its network address + * + * @param netaddr network address of the adapter (e.g. 192.168.1.0) + * @return index of the adapter or negative on error + */ +static int +get_adapter_index_from_addr(struct in_addr *netaddr, char *guid, size_t guid_len) +{ + pcap_if_t *alldevs; + pcap_if_t *d; + char errbuf[PCAP_ERRBUF_SIZE+1]; + int index = 0; + + memset(guid, 0, guid_len); + + /* Retrieve the interfaces list */ + if (pcap_findalldevs(&alldevs, errbuf) == -1) { + printf("Error in pcap_findalldevs: %s\n", errbuf); + return -1; + } + /* Scan the list printing every entry */ + for (d = alldevs; d != NULL; d = d->next, index++) { + pcap_addr_t *a; + for(a = d->addresses; a != NULL; a = a->next) { + if (a->addr->sa_family == AF_INET) { + ULONG a_addr = ((struct sockaddr_in *)a->addr)->sin_addr.s_addr; + ULONG a_netmask = ((struct sockaddr_in *)a->netmask)->sin_addr.s_addr; + ULONG a_netaddr = a_addr & a_netmask; + ULONG addr = (*netaddr).s_addr; + if (a_netaddr == addr) { + int ret = -1; + char name[128]; + char *start, *end; + size_t len = strlen(d->name); + if(len > 127) { + len = 127; + } + MEMCPY(name, d->name, len); + name[len] = 0; + start = strstr(name, "{"); + if (start != NULL) { + end = strstr(start, "}"); + if (end != NULL) { + size_t len = end - start + 1; + MEMCPY(guid, start, len); + ret = index; + } + } + pcap_freealldevs(alldevs); + return ret; + } + } + } + } + printf("Network address not found.\n"); + + pcap_freealldevs(alldevs); + return -1; +} +#endif /* PACKET_LIB_GET_ADAPTER_NETADDRESS */ + +#if defined(PACKET_LIB_GET_ADAPTER_NETADDRESS) || defined(PACKET_LIB_ADAPTER_GUID) +/** Get the index of an adapter by its GUID + * + * @param adapter_guid GUID of the adapter + * @return index of the adapter or negative on error + */ +static int +get_adapter_index(const char* adapter_guid) +{ + pcap_if_t *alldevs; + pcap_if_t *d; + char errbuf[PCAP_ERRBUF_SIZE+1]; + int idx = 0; + + /* Retrieve the interfaces list */ + if (pcap_findalldevs(&alldevs, errbuf) == -1) { + printf("Error in pcap_findalldevs: %s\n", errbuf); + return -1; + } + /* Scan the list and compare name vs. adapter_guid */ + for (d = alldevs; d != NULL; d = d->next, idx++) { + if(strstr(d->name, adapter_guid)) { + pcap_freealldevs(alldevs); + return idx; + } + } + /* not found, dump all adapters */ + printf("%d available adapters:\n", idx); + for (d = alldevs, idx = 0; d != NULL; d = d->next, idx++) { + printf("- %d: %s\n", idx, d->name); + } + pcap_freealldevs(alldevs); + return -1; +} +#endif /* defined(PACKET_LIB_GET_ADAPTER_NETADDRESS) || defined(PACKET_LIB_ADAPTER_GUID) */ + +static pcap_t* +pcapif_open_adapter(const char* adapter_name, char* errbuf) +{ + pcap_t* adapter = pcap_open_live(adapter_name,/* name of the device */ + 65536, /* portion of the packet to capture */ + /* 65536 guarantees that the whole packet will be captured on all the link layers */ + PCAP_OPENFLAG_PROMISCUOUS,/* promiscuous mode */ +#if PCAPIF_RX_USE_THREAD + /*-*/1, /* don't wait at all for lower latency */ +#else + 1, /* wait 1 ms in ethernetif_poll */ +#endif + errbuf); /* error buffer */ + return adapter; +} + +#if !PCAPIF_RX_USE_THREAD +static void +pcap_reopen_adapter(struct pcapif_private *pa) +{ + char errbuf[PCAP_ERRBUF_SIZE+1]; + pcap_if_t *alldevs; + if (pa->adapter != NULL) { + pcap_close(pa->adapter); + pa->adapter = NULL; + } + if (pcap_findalldevs(&alldevs, errbuf) != -1) { + pcap_if_t *d; + for (d = alldevs; d != NULL; d = d->next) { + if (!strcmp(d->name, pa->name)) { + pa->adapter = pcapif_open_adapter(pa->name, errbuf); + if (pa->adapter == NULL) { + printf("failed to reopen pcap adapter after failure: %s\n", errbuf); + } + break; + } + } + pcap_freealldevs(alldevs); + } +} +#endif + +/** + * Open a network adapter and set it up for packet input + * + * @param adapter_num the index of the adapter to use + * @param arg argument to pass to input + * @return an adapter handle on success, NULL on failure + */ +static struct pcapif_private* +pcapif_init_adapter(int adapter_num, void *arg) +{ + int i; + int number_of_adapters; + struct pcapif_private *pa; + char errbuf[PCAP_ERRBUF_SIZE+1]; + + pcap_if_t *alldevs; + pcap_if_t *d; + pcap_if_t *used_adapter = NULL; + + pa = (struct pcapif_private *)malloc(sizeof(struct pcapif_private)); + if (!pa) { + printf("Unable to alloc the adapter!\n"); + return NULL; + } + + memset(pa, 0, sizeof(struct pcapif_private)); + pcapif_init_tx_packets(pa); + pa->input_fn_arg = arg; + + /* Retrieve the interfaces list */ + if (pcap_findalldevs(&alldevs, errbuf) == -1) { + free(pa); + return NULL; /* no adapters found */ + } + /* get number of adapters and adapter pointer */ + for (d = alldevs, number_of_adapters = 0; d != NULL; d = d->next, number_of_adapters++) { + if (number_of_adapters == adapter_num) { + char *desc = d->description; + size_t len; + + len = strlen(d->name); + LWIP_ASSERT("len < ADAPTER_NAME_LEN", len < ADAPTER_NAME_LEN); + strcpy(pa->name, d->name); + + used_adapter = d; + /* format vendor description */ + if (desc != NULL) { + len = strlen(desc); + if (strstr(desc, " ' on local host") != NULL) { + len -= 16; + } + else if (strstr(desc, "' on local host") != NULL) { + len -= 15; + } + if (strstr(desc, "Network adapter '") == desc) { + len -= 17; + desc += 17; + } + len = LWIP_MIN(len, ADAPTER_DESC_LEN-1); + while ((desc[len-1] == ' ') || (desc[len-1] == '\t')) { + /* don't copy trailing whitespace */ + len--; + } + strncpy(pa->description, desc, len); + pa->description[len] = 0; + } else { + strcpy(pa->description, ""); + } + } + } + +#ifndef PCAPIF_LIB_QUIET + /* Scan the list printing every entry */ + for (d = alldevs, i = 0; d != NULL; d = d->next, i++) { + char *desc = d->description; + char descBuf[128]; + size_t len; + const char* devname = d->name; + if (d->name == NULL) { + devname = ""; + } else { + if (strstr(devname, "\\Device\\") == devname) { + /* windows: strip the first part */ + devname += 8; + } + } + printf("%2i: %s\n", i, devname); + if (desc != NULL) { + /* format vendor description */ + len = strlen(desc); + if (strstr(desc, " ' on local host") != NULL) { + len -= 16; + } + else if (strstr(desc, "' on local host") != NULL) { + len -= 15; + } + if (strstr(desc, "Network adapter '") == desc) { + len -= 17; + desc += 17; + } + len = LWIP_MIN(len, 127); + while ((desc[len-1] == ' ') || (desc[len-1] == '\t')) { + /* don't copy trailing whitespace */ + len--; + } + strncpy(descBuf, desc, len); + descBuf[len] = 0; + printf(" Desc: \"%s\"\n", descBuf); + } + } +#endif /* PCAPIF_LIB_QUIET */ + + /* invalid adapter index -> check this after printing the adapters */ + if (adapter_num < 0) { + printf("Invalid adapter_num: %d\n", adapter_num); + free(pa); + pcap_freealldevs(alldevs); + return NULL; + } + /* adapter index out of range */ + if (adapter_num >= number_of_adapters) { + printf("Invalid adapter_num: %d\n", adapter_num); + free(pa); + pcap_freealldevs(alldevs); + return NULL; + } +#ifndef PCAPIF_LIB_QUIET + printf("Using adapter_num: %d\n", adapter_num); +#endif /* PCAPIF_LIB_QUIET */ + /* set up the selected adapter */ + + LWIP_ASSERT("used_adapter != NULL", used_adapter != NULL); + + /* Open the device */ + pa->adapter = pcapif_open_adapter(used_adapter->name, errbuf); + if (pa->adapter == NULL) { + printf("\nUnable to open the adapter. %s is not supported by pcap (\"%s\").\n", used_adapter->name, errbuf); + /* Free the device list */ + pcap_freealldevs(alldevs); + free(pa); + return NULL; + } + printf("Using adapter: \"%s\"\n", pa->description); + pcap_freealldevs(alldevs); + +#if PCAPIF_HANDLE_LINKSTATE + pa->link_state = pcapifh_linkstate_init(pa->name); + pa->last_link_event = PCAPIF_LINKEVENT_UNKNOWN; +#endif /* PCAPIF_HANDLE_LINKSTATE */ + + return pa; +} + +#if PCAPIF_HANDLE_LINKSTATE +static void +pcapif_check_linkstate(void *netif_ptr) +{ + struct netif *netif = (struct netif*)netif_ptr; + struct pcapif_private *pa = (struct pcapif_private*)PCAPIF_GET_STATE_PTR(netif); + enum pcapifh_link_event le; + + le = pcapifh_linkstate_get(pa->link_state); + + if (pa->last_link_event != le) { + pa->last_link_event = le; + switch (le) { + case PCAPIF_LINKEVENT_UP: { + PCAPIF_NOTIFY_LINKSTATE(netif, netif_set_link_up); + break; + } + case PCAPIF_LINKEVENT_DOWN: { + PCAPIF_NOTIFY_LINKSTATE(netif, netif_set_link_down); + break; + } + case PCAPIF_LINKEVENT_UNKNOWN: /* fall through */ + default: + break; + } + } + sys_timeout(PCAPIF_LINKCHECK_INTERVAL_MS, pcapif_check_linkstate, netif); +} +#endif /* PCAPIF_HANDLE_LINKSTATE */ + + +/** + * Close the adapter (no more packets can be sent or received) + * + * @param netif netif to shutdown + */ +void +pcapif_shutdown(struct netif *netif) +{ + struct pcapif_private *pa = (struct pcapif_private*)PCAPIF_GET_STATE_PTR(netif); + if (pa) { +#if PCAPIF_RX_USE_THREAD + pa->rx_run = 0; +#endif /* PCAPIF_RX_USE_THREAD */ + if (pa->adapter) { + pcap_breakloop(pa->adapter); + pcap_close(pa->adapter); + } +#if PCAPIF_RX_USE_THREAD + /* wait for rxthread to end */ + while(pa->rx_running); +#endif /* PCAPIF_RX_USE_THREAD */ +#if PCAPIF_HANDLE_LINKSTATE + pcapifh_linkstate_close(pa->link_state); +#endif /* PCAPIF_HANDLE_LINKSTATE */ + free(pa); + } +} + +#if PCAPIF_RX_USE_THREAD +/** RX running in its own thread */ +static void +pcapif_input_thread(void *arg) +{ + struct netif *netif = (struct netif *)arg; + struct pcapif_private *pa = (struct pcapif_private*)PCAPIF_GET_STATE_PTR(netif); + do + { + struct pcap_pkthdr pkt_header; + const u_char *packet = pcap_next(pa->adapter, &pkt_header); + if(packet != NULL) { + pcapif_input((u_char*)pa, &pkt_header, packet); + } + } while (pa->rx_run); + pa->rx_running = 0; +} +#endif /* PCAPIF_RX_USE_THREAD */ + +/** Low-level initialization: find the correct adapter and initialize it. + */ +static void +pcapif_low_level_init(struct netif *netif) +{ + u8_t my_mac_addr[ETH_HWADDR_LEN] = LWIP_MAC_ADDR_BASE; + int adapter_num = PACKET_LIB_ADAPTER_NR; + struct pcapif_private *pa; +#ifdef PACKET_LIB_GET_ADAPTER_NETADDRESS + ip4_addr_t netaddr; +#define GUID_LEN 128 + char guid[GUID_LEN + 1]; +#endif /* PACKET_LIB_GET_ADAPTER_NETADDRESS */ + + /* If 'state' is != NULL at this point, we assume it is an 'int' giving + the index of the adapter to use (+ 1 because 0==NULL is invalid). + This can be used to instantiate multiple PCAP drivers. */ + if (netif->state != NULL) { + adapter_num = (LWIP_PTR_NUMERIC_CAST(int, netif->state)) - 1; + if (adapter_num < 0) { + printf("ERROR: invalid adapter index \"%d\"!\n", adapter_num); + LWIP_ASSERT("ERROR initializing network adapter!", 0); + return; + } + } + +#ifdef PACKET_LIB_GET_ADAPTER_NETADDRESS + memset(&guid, 0, sizeof(guid)); + PACKET_LIB_GET_ADAPTER_NETADDRESS(&netaddr); + if (get_adapter_index_from_addr((struct in_addr *)&netaddr, guid, GUID_LEN) < 0) { + printf("ERROR initializing network adapter, failed to get GUID for network address %s\n", ip4addr_ntoa(&netaddr)); + LWIP_ASSERT("ERROR initializing network adapter, failed to get GUID for network address!", 0); + return; + } + adapter_num = get_adapter_index(guid); + if (adapter_num < 0) { + printf("ERROR finding network adapter with GUID \"%s\"!\n", guid); + LWIP_ASSERT("ERROR finding network adapter with expected GUID!", 0); + return; + } + +#else /* PACKET_LIB_GET_ADAPTER_NETADDRESS */ +#ifdef PACKET_LIB_ADAPTER_GUID + /* get adapter index for guid string */ + adapter_num = get_adapter_index(PACKET_LIB_ADAPTER_GUID); + if (adapter_num < 0) { + printf("ERROR finding network adapter with GUID \"%s\"!\n", PACKET_LIB_ADAPTER_GUID); + LWIP_ASSERT("ERROR initializing network adapter!", 0); + return; + } +#endif /* PACKET_LIB_ADAPTER_GUID */ +#endif /* PACKET_LIB_GET_ADAPTER_NETADDRESS */ + + /* Do whatever else is needed to initialize interface. */ + pa = pcapif_init_adapter(adapter_num, netif); + if (pa == NULL) { + printf("ERROR initializing network adapter %d!\n", adapter_num); + LWIP_ASSERT("ERROR initializing network adapter!", 0); + return; + } + netif->state = pa; + + /* change the MAC address to a unique value + so that multiple ethernetifs are supported */ + /* @todo: this does NOT support multiple processes using this adapter! */ + my_mac_addr[ETH_HWADDR_LEN - 1] += netif->num; + /* Copy MAC addr */ + SMEMCPY(&netif->hwaddr, my_mac_addr, ETH_HWADDR_LEN); + + /* get the initial link state of the selected interface */ +#if PCAPIF_HANDLE_LINKSTATE + pa->last_link_event = pcapifh_linkstate_get(pa->link_state); + if (pa->last_link_event == PCAPIF_LINKEVENT_DOWN) { + netif_set_link_down(netif); + } else { + netif_set_link_up(netif); + } + sys_timeout(PCAPIF_LINKCHECK_INTERVAL_MS, pcapif_check_linkstate, netif); +#else /* PCAPIF_HANDLE_LINKSTATE */ + /* just set the link up so that lwIP can transmit */ + netif_set_link_up(netif); +#endif /* PCAPIF_HANDLE_LINKSTATE */ + +#if PCAPIF_RX_USE_THREAD + pa->rx_run = 1; + pa->rx_running = 1; + sys_thread_new("pcapif_rxthread", pcapif_input_thread, netif, 0, 0); +#endif + + LWIP_DEBUGF(NETIF_DEBUG, ("pcapif: eth_addr %02X%02X%02X%02X%02X%02X\n",netif->hwaddr[0],netif->hwaddr[1],netif->hwaddr[2],netif->hwaddr[3],netif->hwaddr[4],netif->hwaddr[5])); +} + +/** low_level_output(): + * Transmit a packet. The packet is contained in the pbuf that is passed to + * the function. This pbuf might be chained. + */ +static err_t +pcapif_low_level_output(struct netif *netif, struct pbuf *p) +{ + struct pbuf *q; + unsigned char buffer[ETH_MAX_FRAME_LEN + ETH_PAD_SIZE]; + unsigned char *buf = buffer; + unsigned char *ptr; + struct eth_hdr *ethhdr; + u16_t tot_len = p->tot_len - ETH_PAD_SIZE; + struct pcapif_private *pa = (struct pcapif_private*)PCAPIF_GET_STATE_PTR(netif); + +#if defined(LWIP_DEBUG) && LWIP_NETIF_TX_SINGLE_PBUF && !(LWIP_IPV4 && IP_FRAG) && (LWIP_IPV6 && LWIP_IPV6_FRAG) + LWIP_ASSERT("p->next == NULL && p->len == p->tot_len", p->next == NULL && p->len == p->tot_len); +#endif + + /* initiate transfer */ + if ((p->len == p->tot_len) && (p->len >= ETH_MIN_FRAME_LEN + ETH_PAD_SIZE)) { + /* no pbuf chain, don't have to copy -> faster */ + buf = &((unsigned char*)p->payload)[ETH_PAD_SIZE]; + } else { + /* pbuf chain, copy into contiguous buffer */ + if (p->tot_len >= sizeof(buffer)) { + LINK_STATS_INC(link.lenerr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + return ERR_BUF; + } + ptr = buffer; + for(q = p; q != NULL; q = q->next) { + /* Send the data from the pbuf to the interface, one pbuf at a + time. The size of the data in each pbuf is kept in the ->len + variable. */ + /* send data from(q->payload, q->len); */ + LWIP_DEBUGF(NETIF_DEBUG, ("netif: send ptr %p q->payload %p q->len %i q->next %p\n", ptr, q->payload, (int)q->len, (void*)q->next)); + if (q == p) { + MEMCPY(ptr, &((char*)q->payload)[ETH_PAD_SIZE], q->len - ETH_PAD_SIZE); + ptr += q->len - ETH_PAD_SIZE; + } else { + MEMCPY(ptr, q->payload, q->len); + ptr += q->len; + } + } + } + + if (tot_len < ETH_MIN_FRAME_LEN) { + /* ensure minimal frame length */ + memset(&buf[tot_len], 0, ETH_MIN_FRAME_LEN - tot_len); + tot_len = ETH_MIN_FRAME_LEN; + } + + /* signal that packet should be sent */ + if (pcap_sendpacket(pa->adapter, buf, tot_len) < 0) { + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + return ERR_BUF; + } + if (netif_is_link_up(netif)) { + pcapif_add_tx_packet(pa, buf, tot_len); + } + + LINK_STATS_INC(link.xmit); + MIB2_STATS_NETIF_ADD(netif, ifoutoctets, tot_len); + ethhdr = (struct eth_hdr *)p->payload; + if ((ethhdr->dest.addr[0] & 1) != 0) { + /* broadcast or multicast packet*/ + MIB2_STATS_NETIF_INC(netif, ifoutnucastpkts); + } else { + /* unicast packet */ + MIB2_STATS_NETIF_INC(netif, ifoutucastpkts); + } + return ERR_OK; +} + +/** low_level_input(): Allocate a pbuf and transfer the bytes of the incoming + * packet from the interface into the pbuf. + */ +static struct pbuf * +pcapif_low_level_input(struct netif *netif, const void *packet, int packet_len) +{ + struct pbuf *p, *q; + int start; + int length = packet_len; + const struct eth_addr *dest = (const struct eth_addr*)packet; + int unicast; +#if PCAPIF_FILTER_GROUP_ADDRESSES && !PCAPIF_RECEIVE_PROMISCUOUS + const u8_t bcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + const u8_t ipv4mcast[] = {0x01, 0x00, 0x5e}; + const u8_t ipv6mcast[] = {0x33, 0x33}; +#endif /* PCAPIF_FILTER_GROUP_ADDRESSES && !PCAPIF_RECEIVE_PROMISCUOUS */ + + if (pcaipf_is_tx_packet(netif, packet, packet_len)) { + /* don't update counters here! */ + return NULL; + } + + unicast = ((dest->addr[0] & 0x01) == 0); +#if !PCAPIF_RECEIVE_PROMISCUOUS + /* MAC filter: only let my MAC or non-unicast through (pcap receives loopback traffic, too) */ + if (memcmp(dest, &netif->hwaddr, ETH_HWADDR_LEN) && +#if PCAPIF_FILTER_GROUP_ADDRESSES + (memcmp(dest, ipv4mcast, 3) || ((dest->addr[3] & 0x80) != 0)) && + memcmp(dest, ipv6mcast, 2) && + memcmp(dest, bcast, 6) +#else /* PCAPIF_FILTER_GROUP_ADDRESSES */ + unicast +#endif /* PCAPIF_FILTER_GROUP_ADDRESSES */ + ) { + /* don't update counters here! */ + return NULL; + } +#endif /* !PCAPIF_RECEIVE_PROMISCUOUS */ + + /* We allocate a pbuf chain of pbufs from the pool. */ + p = pbuf_alloc(PBUF_RAW, (u16_t)length + ETH_PAD_SIZE, PBUF_POOL); + LWIP_DEBUGF(NETIF_DEBUG, ("netif: recv length %i p->tot_len %i\n", length, (int)p->tot_len)); + + if (p != NULL) { + /* We iterate over the pbuf chain until we have read the entire + packet into the pbuf. */ + start = 0; + for (q = p; q != NULL; q = q->next) { + u16_t copy_len = q->len; + /* Read enough bytes to fill this pbuf in the chain. The + available data in the pbuf is given by the q->len + variable. */ + /* read data into(q->payload, q->len); */ + LWIP_DEBUGF(NETIF_DEBUG, ("netif: recv start %i length %i q->payload %p q->len %i q->next %p\n", start, length, q->payload, (int)q->len, (void*)q->next)); + if (q == p) { +#if ETH_PAD_SIZE + LWIP_ASSERT("q->len >= ETH_PAD_SIZE", q->len >= ETH_PAD_SIZE); + copy_len -= ETH_PAD_SIZE; +#endif /* ETH_PAD_SIZE*/ + MEMCPY(&((char*)q->payload)[ETH_PAD_SIZE], &((const char*)packet)[start], copy_len); + } else { + MEMCPY(q->payload, &((const char*)packet)[start], copy_len); + } + start += copy_len; + length -= copy_len; + if (length <= 0) { + break; + } + } + LINK_STATS_INC(link.recv); + MIB2_STATS_NETIF_ADD(netif, ifinoctets, p->tot_len - ETH_PAD_SIZE); + if (unicast) { + MIB2_STATS_NETIF_INC(netif, ifinucastpkts); + } else { + MIB2_STATS_NETIF_INC(netif, ifinnucastpkts); + } + } else { + /* drop packet */ + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(netif, ifindiscards); + } + + return p; +} + +#if PCAPIF_RX_REF +static void +pcapif_rx_pbuf_free_custom(struct pbuf *p) +{ + struct pcapif_pbuf_custom* ppc; + LWIP_ASSERT("NULL pointer", p != NULL); + ppc = (struct pcapif_pbuf_custom*)p; +#if PCAPIF_RX_READONLY + LWIP_ASSERT("NULL pointer", ppc->ro_mem != NULL); + pcapifh_free_readonly_mem(ppc->ro_mem); + ppc->ro_mem = NULL; +#else + LWIP_ASSERT("NULL pointer", ppc->p != NULL); + pbuf_free(ppc->p); + ppc->p = NULL; +#endif + mem_free(p); +} + +static struct pbuf* +pcapif_rx_ref(struct pbuf* p) +{ + struct pcapif_pbuf_custom* ppc; + struct pbuf* q; + u16_t len; + void *payload_mem; + + LWIP_ASSERT("NULL pointer", p != NULL); + LWIP_ASSERT("chained pbuf not supported here", p->next == NULL); + + ppc = (struct pcapif_pbuf_custom*)mem_malloc(sizeof(struct pcapif_pbuf_custom)); + LWIP_ASSERT("out of memory for RX", ppc != NULL); + ppc->pc.custom_free_function = pcapif_rx_pbuf_free_custom; + len = p->tot_len; +#if PCAPIF_RX_READONLY + payload_mem = pcapifh_alloc_readonly_copy(p->payload, len); + LWIP_ASSERT("out of readonly memory for RX", payload_mem != NULL); + pbuf_free(p); + ppc->ro_mem = payload_mem; +#else + ppc->p = p; + payload_mem = p->payload; +#endif + + q = pbuf_alloced_custom(PBUF_RAW, len, PBUF_REF, &ppc->pc, payload_mem, len); + LWIP_ASSERT("pbuf_alloced_custom returned NULL", q != NULL); + return q; +} +#endif /* PCAPIF_RX_REF */ + +/** pcapif_input: This function is called when a packet is ready to be read + * from the interface. It uses the function low_level_input() that should + * handle the actual reception of bytes from the network interface. + */ +static void +pcapif_input(u_char *user, const struct pcap_pkthdr *pkt_header, const u_char *packet) +{ + struct pcapif_private *pa = (struct pcapif_private*)user; + int packet_len = pkt_header->caplen; + struct netif *netif = (struct netif *)pa->input_fn_arg; + struct pbuf *p; + + PCAPIF_RX_LOCK_LWIP(); + + /* move received packet into a new pbuf */ + p = pcapif_low_level_input(netif, packet, packet_len); + /* if no packet could be read, silently ignore this */ + if (p != NULL) { +#if PCAPIF_RX_REF + p = pcapif_rx_ref(p); +#endif + /* pass all packets to ethernet_input, which decides what packets it supports */ + if (netif->input(p, netif) != ERR_OK) { + LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n")); + pbuf_free(p); + } + } + PCAPIF_RX_UNLOCK_LWIP(); +} + +/** + * pcapif_init(): initialization function, pass to netif_add(). + */ +err_t +pcapif_init(struct netif *netif) +{ + static int ethernetif_index; + + int local_index; + SYS_ARCH_DECL_PROTECT(lev); + SYS_ARCH_PROTECT(lev); + local_index = ethernetif_index++; + SYS_ARCH_UNPROTECT(lev); + + LWIP_ASSERT("pcapif needs an input callback", netif->input != NULL); + + netif->name[0] = IFNAME0; + netif->name[1] = (char)(IFNAME1 + local_index); + netif->linkoutput = pcapif_low_level_output; +#if LWIP_IPV4 +#if LWIP_ARP + netif->output = etharp_output; +#else /* LWIP_ARP */ + netif->output = NULL; /* not used for PPPoE */ +#endif /* LWIP_ARP */ +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + netif->output_ip6 = ethip6_output; +#endif /* LWIP_IPV6 */ +#if LWIP_NETIF_HOSTNAME + /* Initialize interface hostname */ + netif_set_hostname(netif, "lwip"); +#endif /* LWIP_NETIF_HOSTNAME */ + + netif->mtu = 1500; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP; +#if LWIP_IPV6 && LWIP_IPV6_MLD + netif->flags |= NETIF_FLAG_MLD6; +#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ + netif->hwaddr_len = ETH_HWADDR_LEN; + + NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 100000000); + + /* sets link up or down based on current status */ + pcapif_low_level_init(netif); + + return ERR_OK; +} + +#if !PCAPIF_RX_USE_THREAD +void +pcapif_poll(struct netif *netif) +{ + struct pcapif_private *pa = (struct pcapif_private*)PCAPIF_GET_STATE_PTR(netif); + + int ret; + do { + if (pa->adapter != NULL) { + ret = pcap_dispatch(pa->adapter, -1, pcapif_input, (u_char*)pa); + } else { + ret = -1; + } + if (ret < 0) { + /* error (e.g. adapter removed or resume from standby), try to reopen the adapter */ + pcap_reopen_adapter(pa); + } + } while (ret > 0); + +} +#endif /* !PCAPIF_RX_USE_THREAD */ + +#endif /* LWIP_ETHERNET */ diff --git a/middleware/lwip/contrib/ports/win32/pcapif.h b/middleware/lwip/contrib/ports/win32/pcapif.h new file mode 100644 index 0000000..8d67ea4 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/pcapif.h @@ -0,0 +1,32 @@ +#ifndef LWIP_PCAPIF_H +#define LWIP_PCAPIF_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include "lwip/err.h" + +/** Set to 1 to let rx use an own thread (only for NO_SYS==0). + * If set to 0, ethernetif_poll is used to poll for packets. + */ +#ifndef PCAPIF_RX_USE_THREAD +#define PCAPIF_RX_USE_THREAD !NO_SYS +#endif +#if PCAPIF_RX_USE_THREAD && NO_SYS +#error "Can't create a dedicated RX thread with NO_SYS==1" +#endif + +struct netif; + +err_t pcapif_init (struct netif *netif); +void pcapif_shutdown(struct netif *netif); +#if !PCAPIF_RX_USE_THREAD +void pcapif_poll (struct netif *netif); +#endif /* !PCAPIF_RX_USE_THREAD */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_PCAPIF_H */ diff --git a/middleware/lwip/contrib/ports/win32/pcapif_helper.c b/middleware/lwip/contrib/ports/win32/pcapif_helper.c new file mode 100644 index 0000000..bc6ca8d --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/pcapif_helper.c @@ -0,0 +1,142 @@ +/** + * pcapif_helper.c - This file is part of lwIP pcapif and provides helper functions + * for managing the link state. + */ + +#include "pcapif_helper.h" + +#include +#include + +#include "lwip/arch.h" + +#ifdef WIN32 + +#define WIN32_LEAN_AND_MEAN + +#ifdef _MSC_VER +#pragma warning( push, 3 ) +#endif +#include +#include +#include +#ifdef _MSC_VER +#pragma warning ( pop ) +#endif + +struct pcapifh_linkstate { + LPADAPTER lpAdapter; + PPACKET_OID_DATA ppacket_oid_data; +}; + +struct pcapifh_linkstate* pcapifh_linkstate_init(char *adapter_name) +{ + struct pcapifh_linkstate* state = (struct pcapifh_linkstate*)malloc(sizeof(struct pcapifh_linkstate)); + if (state != NULL) { + memset(state, 0, sizeof(struct pcapifh_linkstate)); + state->ppacket_oid_data = (PPACKET_OID_DATA)malloc(sizeof(PACKET_OID_DATA) + sizeof(NDIS_MEDIA_STATE)); + if (state->ppacket_oid_data == NULL) { + free(state); + state = NULL; + } else { + state->lpAdapter = PacketOpenAdapter((char*)adapter_name); + if ((state->lpAdapter == NULL) || (state->lpAdapter->hFile == INVALID_HANDLE_VALUE)) { + /* failed to open adapter */ + free(state); + state = NULL; + } + } + } + return state; +} + +enum pcapifh_link_event pcapifh_linkstate_get(struct pcapifh_linkstate* state) +{ + enum pcapifh_link_event ret = PCAPIF_LINKEVENT_UNKNOWN; + if (state != NULL) { + state->ppacket_oid_data->Oid = OID_GEN_MEDIA_CONNECT_STATUS; + state->ppacket_oid_data->Length = sizeof(NDIS_MEDIA_STATE); + if (PacketRequest(state->lpAdapter, FALSE, state->ppacket_oid_data)) { + NDIS_MEDIA_STATE fNdisMediaState; + fNdisMediaState = (*((PNDIS_MEDIA_STATE)(state->ppacket_oid_data->Data))); + ret = ((fNdisMediaState == NdisMediaStateConnected) ? PCAPIF_LINKEVENT_UP : PCAPIF_LINKEVENT_DOWN); + } + } + return ret; +} + +void pcapifh_linkstate_close(struct pcapifh_linkstate* state) +{ + if (state != NULL) { + if (state->lpAdapter != NULL) { + PacketCloseAdapter(state->lpAdapter); + } + if (state->ppacket_oid_data != NULL) { + free(state->ppacket_oid_data); + } + free(state); + } +} + +/** Helper function for PCAPIF_RX_READONLY for windows: copy the date to a new + * page which is set to READONLY after copying. + * This is a helper to simulate hardware that receives to memory that cannot be + * written by the CPU. + */ +void * +pcapifh_alloc_readonly_copy(void *data, size_t len) +{ + DWORD oldProtect; + void *ret; + if (len > 4096) { + lwip_win32_platform_diag("pcapifh_alloc_readonly_copy: invalid len: %d\n", len); + while(1); + } + ret = VirtualAlloc(NULL, 4096, MEM_COMMIT, PAGE_READWRITE); + if (ret == NULL) { + lwip_win32_platform_diag("VirtualAlloc failed: %d\n", GetLastError()); + while(1); + } + memcpy(ret, data, len); + if (!VirtualProtect(ret, len, PAGE_READONLY, &oldProtect)) { + lwip_win32_platform_diag("VirtualProtect failed: %d\n", GetLastError()); + while(1); + } + printf("pcapifh_alloc_readonly_copy(%d): 0x%08x\n", len, ret); + return ret; +} + +void +pcapifh_free_readonly_mem(void *data) +{ + if (!VirtualFree(data, 0, MEM_RELEASE)) { + lwip_win32_platform_diag("VirtualFree(0x%08x) failed: %d\n", data, GetLastError()); + while(1); + } +} + +#else /* WIN32 */ + +/* @todo: add linux/unix implementation? */ + +struct pcapifh_linkstate { + u8_t empty; +}; + +struct pcapifh_linkstate* pcapifh_linkstate_init(char *adapter_name) +{ + LWIP_UNUSED_ARG(adapter_name); + return NULL; +} + +enum pcapifh_link_event pcapifh_linkstate_get(struct pcapifh_linkstate* state) +{ + LWIP_UNUSED_ARG(state); + return PCAPIF_LINKEVENT_UP; +} +void pcapifh_linkstate_close(struct pcapifh_linkstate* state) +{ + LWIP_UNUSED_ARG(state); +} + +#endif /* WIN32 */ diff --git a/middleware/lwip/contrib/ports/win32/pcapif_helper.h b/middleware/lwip/contrib/ports/win32/pcapif_helper.h new file mode 100644 index 0000000..d4315a0 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/pcapif_helper.h @@ -0,0 +1,29 @@ +#ifndef LWIP_PCAPIF_HELPER_H +#define LWIP_PCAPIF_HELPER_H + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +struct pcapifh_linkstate; + +enum pcapifh_link_event { + PCAPIF_LINKEVENT_UNKNOWN, + PCAPIF_LINKEVENT_UP, + PCAPIF_LINKEVENT_DOWN +}; + +struct pcapifh_linkstate* pcapifh_linkstate_init(char *adapter_name); +enum pcapifh_link_event pcapifh_linkstate_get(struct pcapifh_linkstate* state); +void pcapifh_linkstate_close(struct pcapifh_linkstate* state); + +void *pcapifh_alloc_readonly_copy(void *data, size_t len); +void pcapifh_free_readonly_mem(void *data); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_PCAPIF_HELPER_H */ diff --git a/middleware/lwip/contrib/ports/win32/readme.txt b/middleware/lwip/contrib/ports/win32/readme.txt new file mode 100644 index 0000000..02a79e2 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/readme.txt @@ -0,0 +1,26 @@ +lwIP for Win32 + +This is an example port of lwIP for Win32. It uses WinPCAP to send & receive packets. +To compile it, use the MSVC projects in the 'msvc' subdir or the Makefile in the 'mingw' subdir. + +For both compilers: +- the lwIP core repository must be in a folder "lwip" next to the "contrib" folder +- you have to set an environment variable PCAP_DIR pointing to the WinPcap Developer's + Pack (containing 'include' and 'lib') + alternatively, place the WinPcap Developer's pack next to the "lwip" and "contrib" folders: + "winpcap\WpdPack" + +You also will have to copy the file 'lwipcfg_msvc.h.example' to +'lwipcfg_msvc.h' and modify to suit your needs (WinPcap adapter number, +IP configuration, applications...). + +Included in the contrib\ports\win32 directory is the network interface driver +using the winpcap library. + +lwIP: http://savannah.nongnu.org/projects/lwip/ +WinPCap: https://www.winpcap.org/devel.htm +Visual C++: http://www.microsoft.com/express/download/ + +To compile the unittests (msvc\lwIP_unittests.sln), download check (tested with v0.11.0) from +https://github.com/libcheck/check/releases/ +and place it in a folder "check" next to the "contrib" folder. diff --git a/middleware/lwip/contrib/ports/win32/sio.c b/middleware/lwip/contrib/ports/win32/sio.c new file mode 100644 index 0000000..1cf1ef5 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/sio.c @@ -0,0 +1,304 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include +#include +#include + +#include +#include + +#ifdef _MSC_VER +#pragma warning (push, 3) +#endif +#include +#ifdef _MSC_VER +#pragma warning (pop) +#endif +#include "lwipcfg.h" + +/** When 1, use COM ports, when 0, use named pipes (for simulation). */ +#ifndef SIO_USE_COMPORT +#define SIO_USE_COMPORT 1 +#endif + +/** If SIO_USE_COMPORT==1, use COMx, if 0, use a pipe (default) */ +#if SIO_USE_COMPORT +#define SIO_DEVICENAME "\\\\.\\COM" +#else +#define SIO_DEVICENAME "\\\\.\\pipe\\lwip" +#endif + +#if SIO_USE_COMPORT +#ifndef SIO_COMPORT_SPEED +#define SIO_COMPORT_SPEED 115200 +#endif +#ifndef SIO_COMPORT_BYTESIZE +#define SIO_COMPORT_BYTESIZE 8 +#endif +#ifndef SIO_COMPORT_STOPBITS +#define SIO_COMPORT_STOPBITS 0 /* ONESTOPBIT */ +#endif +#ifndef SIO_COMPORT_PARITY +#define SIO_COMPORT_PARITY 0 /* NOPARITY */ +#endif +#endif /* SIO_USE_COMPORT */ + +static int sio_abort = 0; + +/* \\.\pipe\lwip0 */ +/* pppd /dev/ttyS0 logfile mylog debug nocrtscts local noauth noccp ms-dns 212.27.54.252 192.168.0.4:192.168.0.5 + */ + +/** + * SIO_DEBUG: Enable debugging for SIO. + */ +#ifndef SIO_DEBUG +#define SIO_DEBUG LWIP_DBG_OFF +#endif + +#if SIO_USE_COMPORT +/** When using a real COM port, set up the + * serial line settings (baudrate etc.) + */ +static BOOL +sio_setup(HANDLE fd) +{ + COMMTIMEOUTS cto; + DCB dcb; + + /* set up baudrate and other communication settings */ + memset(&dcb, 0, sizeof(dcb)); + /* Obtain the DCB structure for the device */ + if (!GetCommState(fd, &dcb)) { + return FALSE; + } + /* Set the new data */ + dcb.BaudRate = SIO_COMPORT_SPEED; + dcb.ByteSize = SIO_COMPORT_BYTESIZE; + dcb.StopBits = 0; /* ONESTOPBIT */ + dcb.Parity = 0; /* NOPARITY */ + dcb.fParity = 0; /* parity is not used */ + /* do not use flow control */ + /*dcb.fOutxDsrFlow = dcb.fDtrControl = 0; + dcb.fOutxCtsFlow = dcb.fRtsControl = 0; + dcb.fErrorChar = dcb.fNull = 0; + dcb.fInX = dcb.fOutX = 0; + dcb.XonChar = dcb.XoffChar = 0; + dcb.XonLim = dcb.XoffLim = 100;*/ + + /* Set the new DCB structure */ + if (!SetCommState(fd, &dcb)) { + return FALSE; + } + + memset(&cto, 0, sizeof(cto)); + if(!GetCommTimeouts(fd, &cto)) + { + return FALSE; + } + /* change read timeout, leave write timeout as it is */ + cto.ReadIntervalTimeout = 1; + cto.ReadTotalTimeoutMultiplier = 0; + cto.ReadTotalTimeoutConstant = 1; /* 1 ms */ + if(!SetCommTimeouts(fd, &cto)) { + return FALSE; + } + + return TRUE; +} +#endif /* SIO_USE_COMPORT */ + +/** + * Opens a serial device for communication. + * + * @param devnum device number + * @return handle to serial device if successful, NULL otherwise + */ +sio_fd_t sio_open(u8_t devnum) +{ + HANDLE fileHandle = INVALID_HANDLE_VALUE; + CHAR fileName[256]; + LWIP_DEBUGF(SIO_DEBUG, ("sio_open(%lu)\n", (DWORD)devnum)); +#if SIO_USE_COMPORT + snprintf(fileName, 255, SIO_DEVICENAME"%lu", (DWORD)(devnum)); +#else /* SIO_USE_COMPORT */ + snprintf(fileName, 255, SIO_DEVICENAME"%lu", (DWORD)(devnum & ~1)); + if ((devnum & 1) == 0) { + fileHandle = CreateNamedPipeA(fileName, PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE | PIPE_NOWAIT, + PIPE_UNLIMITED_INSTANCES, 102400, 102400, 100, NULL); + } else +#endif /* SIO_USE_COMPORT */ + { + fileHandle = CreateFileA(fileName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL); + } + if (fileHandle != INVALID_HANDLE_VALUE) { + sio_abort = 0; +#if !SIO_USE_COMPORT + if (devnum & 1) { + DWORD mode = PIPE_NOWAIT; + if (!SetNamedPipeHandleState(fileHandle, &mode, NULL, NULL)) { + LWIP_DEBUGF(SIO_DEBUG, ("sio_open(%lu): SetNamedPipeHandleState failed. GetLastError() returns %d\n", + (DWORD)devnum, GetLastError())); + } + } else +#endif /* !SIO_USE_COMPORT */ + { + FlushFileBuffers(fileHandle); + } +#if SIO_USE_COMPORT + if(!sio_setup(fileHandle)) { + CloseHandle(fileHandle); + LWIP_DEBUGF(SIO_DEBUG, ("sio_open(%lu): sio_setup failed. GetLastError() returns %lu\n", + (DWORD)devnum, GetLastError())); + return NULL; + } +#endif /* SIO_USE_COMPORT */ + LWIP_DEBUGF(SIO_DEBUG, ("sio_open: file \"%s\" successfully opened.\n", fileName)); + printf("sio_open: file \"%s\" (%d) successfully opened: 0x%08x\n", fileName, devnum, LWIP_PTR_NUMERIC_CAST(unsigned int, fileHandle)); + return (sio_fd_t)(fileHandle); + } + LWIP_DEBUGF(SIO_DEBUG, ("sio_open(%lu) failed. GetLastError() returns %lu\n", + (DWORD)devnum, GetLastError())); + printf("sio_open(%lu) failed. GetLastError() returns %lu\n", + (DWORD)devnum, GetLastError()); + return NULL; +} + +/** + * Sends a single character to the serial device. + * + * @param c character to send + * @param fd serial device handle + * + * @note This function will block until the character can be sent. + */ +void sio_send(u8_t c, sio_fd_t fd) +{ + DWORD dwNbBytesWritten = 0; + LWIP_DEBUGF(SIO_DEBUG, ("sio_send(%lu)\n", (DWORD)c)); + while ((!WriteFile((HANDLE)(fd), &c, 1, &dwNbBytesWritten, NULL)) || (dwNbBytesWritten < 1)) { + } +} + +/** + * Receives a single character from the serial device. + * + * @param fd serial device handle + * + * @note This function will block until a character is received. + */ +u8_t sio_recv(sio_fd_t fd) +{ + DWORD dwNbBytesReadden = 0; + u8_t byte = 0; + LWIP_DEBUGF(SIO_DEBUG, ("sio_recv()\n")); + while ((sio_abort == 0) && ((!ReadFile((HANDLE)(fd), &byte, 1, &dwNbBytesReadden, NULL)) || (dwNbBytesReadden < 1))); + LWIP_DEBUGF(SIO_DEBUG, ("sio_recv()=%lu\n", (DWORD)byte)); + return byte; +} + +/** + * Reads from the serial device. + * + * @param fd serial device handle + * @param data pointer to data buffer for receiving + * @param len maximum length (in bytes) of data to receive + * @return number of bytes actually received - may be 0 if aborted by sio_read_abort + * + * @note This function will block until data can be received. The blocking + * can be cancelled by calling sio_read_abort(). + */ +u32_t sio_read(sio_fd_t fd, u8_t* data, u32_t len) +{ + BOOL ret; + DWORD dwNbBytesReadden = 0; + LWIP_DEBUGF(SIO_DEBUG, ("sio_read()...\n")); + ret = ReadFile((HANDLE)(fd), data, len, &dwNbBytesReadden, NULL); + LWIP_DEBUGF(SIO_DEBUG, ("sio_read()=%lu bytes -> %d\n", dwNbBytesReadden, ret)); + LWIP_UNUSED_ARG(ret); + return dwNbBytesReadden; +} + +/** + * Tries to read from the serial device. Same as sio_read but returns + * immediately if no data is available and never blocks. + * + * @param fd serial device handle + * @param data pointer to data buffer for receiving + * @param len maximum length (in bytes) of data to receive + * @return number of bytes actually received + */ +u32_t sio_tryread(sio_fd_t fd, u8_t* data, u32_t len) +{ + /* @todo: implement non-blocking read */ + BOOL ret; + DWORD dwNbBytesReadden = 0; + LWIP_DEBUGF(SIO_DEBUG, ("sio_read()...\n")); + ret = ReadFile((HANDLE)(fd), data, len, &dwNbBytesReadden, NULL); + LWIP_DEBUGF(SIO_DEBUG, ("sio_read()=%lu bytes -> %d\n", dwNbBytesReadden, ret)); + LWIP_UNUSED_ARG(ret); + return dwNbBytesReadden; +} + +/** + * Writes to the serial device. + * + * @param fd serial device handle + * @param data pointer to data to send + * @param len length (in bytes) of data to send + * @return number of bytes actually sent + * + * @note This function will block until all data can be sent. + */ +u32_t sio_write(sio_fd_t fd, u8_t* data, u32_t len) +{ + BOOL ret; + DWORD dwNbBytesWritten = 0; + LWIP_DEBUGF(SIO_DEBUG, ("sio_write()...\n")); + ret = WriteFile((HANDLE)(fd), data, len, &dwNbBytesWritten, NULL); + LWIP_DEBUGF(SIO_DEBUG, ("sio_write()=%lu bytes -> %d\n", dwNbBytesWritten, ret)); + LWIP_UNUSED_ARG(ret); + return dwNbBytesWritten; +} + +/** + * Aborts a blocking sio_read() call. + * @todo: This currently ignores fd and aborts all reads + * + * @param fd serial device handle + */ +void sio_read_abort(sio_fd_t fd) +{ + LWIP_UNUSED_ARG(fd); + LWIP_DEBUGF(SIO_DEBUG, ("sio_read_abort() !!!!!...\n")); + sio_abort = 1; + return; +} diff --git a/middleware/lwip/contrib/ports/win32/sys_arch.c b/middleware/lwip/contrib/ports/win32/sys_arch.c new file mode 100644 index 0000000..61897e9 --- /dev/null +++ b/middleware/lwip/contrib/ports/win32/sys_arch.c @@ -0,0 +1,782 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * Simon Goldschmidt + * + */ + +#include +#include /* sprintf() for task names */ + +#ifdef _MSC_VER +#pragma warning (push, 3) +#endif +#include +#ifdef _MSC_VER +#pragma warning (pop) +#endif +#include + +#include +#include +#include +#include +#include +#include + +/** Set this to 1 to enable assertion checks that SYS_ARCH_PROTECT() is only + * called once in a call stack (calling it nested might cause trouble in some + * implementations, so let's avoid this in core code as long as we can). + */ +#ifndef LWIP_SYS_ARCH_CHECK_NESTED_PROTECT +#define LWIP_SYS_ARCH_CHECK_NESTED_PROTECT 1 +#endif + +/** Set this to 1 to enable assertion checks that SYS_ARCH_PROTECT() is *not* + * called before functions potentiolly involving the OS scheduler. + * + * This scheme is currently broken only for non-core-locking when waking up + * threads waiting on a socket via select/poll. + */ +#ifndef LWIP_SYS_ARCH_CHECK_SCHEDULING_UNPROTECTED +#define LWIP_SYS_ARCH_CHECK_SCHEDULING_UNPROTECTED LWIP_TCPIP_CORE_LOCKING +#endif + +#define LWIP_WIN32_SYS_ARCH_ENABLE_PROTECT_COUNTER (LWIP_SYS_ARCH_CHECK_NESTED_PROTECT || LWIP_SYS_ARCH_CHECK_SCHEDULING_UNPROTECTED) + +/* These functions are used from NO_SYS also, for precise timer triggering */ +static LARGE_INTEGER freq, sys_start_time; +#define SYS_INITIALIZED() (freq.QuadPart != 0) + +static DWORD netconn_sem_tls_index; + +static HCRYPTPROV hcrypt; + +static void +sys_win_rand_init(void) +{ + if (!CryptAcquireContext(&hcrypt, NULL, NULL, PROV_RSA_FULL, 0)) { + DWORD err = GetLastError(); + LWIP_PLATFORM_DIAG(("CryptAcquireContext failed with error %d, trying to create NEWKEYSET", (int)err)); + if(!CryptAcquireContext(&hcrypt, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET)) { + char errbuf[128]; + err = GetLastError(); + snprintf(errbuf, sizeof(errbuf), "CryptAcquireContext failed with error %d", (int)err); + LWIP_UNUSED_ARG(err); + LWIP_ASSERT(errbuf, 0); + } + } +} + +unsigned int +lwip_port_rand(void) +{ + u32_t ret; + if (CryptGenRandom(hcrypt, sizeof(ret), (BYTE*)&ret)) { + return ret; + } + // maybe CryptAcquireContext has not been called... + sys_win_rand_init(); + if (CryptGenRandom(hcrypt, sizeof(ret), (BYTE*)&ret)) { + return ret; + } + LWIP_ASSERT("CryptGenRandom failed", 0); + return 0; +} + +static void +sys_init_timing(void) +{ + QueryPerformanceFrequency(&freq); + QueryPerformanceCounter(&sys_start_time); +} + +static LONGLONG +sys_get_ms_longlong(void) +{ + LONGLONG ret; + LARGE_INTEGER now; +#if NO_SYS + if (!SYS_INITIALIZED()) { + sys_init(); + LWIP_ASSERT("initialization failed", SYS_INITIALIZED()); + } +#endif /* NO_SYS */ + QueryPerformanceCounter(&now); + ret = now.QuadPart-sys_start_time.QuadPart; + return (u32_t)(((ret)*1000)/freq.QuadPart); +} + +u32_t +sys_jiffies(void) +{ + return (u32_t)sys_get_ms_longlong(); +} + +u32_t +sys_now(void) +{ + u32_t now = (u32_t)sys_get_ms_longlong(); +#ifdef LWIP_FUZZ_SYS_NOW + now += sys_now_offset; +#endif + return now; +} + +CRITICAL_SECTION critSec; +#if LWIP_WIN32_SYS_ARCH_ENABLE_PROTECT_COUNTER +static int protection_depth; +#endif + +static void +InitSysArchProtect(void) +{ + InitializeCriticalSection(&critSec); +} + +sys_prot_t +sys_arch_protect(void) +{ +#if NO_SYS + if (!SYS_INITIALIZED()) { + sys_init(); + LWIP_ASSERT("initialization failed", SYS_INITIALIZED()); + } +#endif + EnterCriticalSection(&critSec); +#if LWIP_SYS_ARCH_CHECK_NESTED_PROTECT + LWIP_ASSERT("nested SYS_ARCH_PROTECT", protection_depth == 0); +#endif +#if LWIP_WIN32_SYS_ARCH_ENABLE_PROTECT_COUNTER + protection_depth++; +#endif + return 0; +} + +void +sys_arch_unprotect(sys_prot_t pval) +{ + LWIP_UNUSED_ARG(pval); +#if LWIP_SYS_ARCH_CHECK_NESTED_PROTECT + LWIP_ASSERT("missing SYS_ARCH_PROTECT", protection_depth == 1); +#else + LWIP_ASSERT("missing SYS_ARCH_PROTECT", protection_depth > 0); +#endif +#if LWIP_WIN32_SYS_ARCH_ENABLE_PROTECT_COUNTER + protection_depth--; +#endif + LeaveCriticalSection(&critSec); +} + +#if LWIP_SYS_ARCH_CHECK_SCHEDULING_UNPROTECTED +/** This checks that SYS_ARCH_PROTECT() hasn't been called by protecting + * and then checking the level + */ +static void +sys_arch_check_not_protected(void) +{ + sys_arch_protect(); + LWIP_ASSERT("SYS_ARCH_PROTECT before scheduling", protection_depth == 1); + sys_arch_unprotect(0); +} +#else +#define sys_arch_check_not_protected() +#endif + +static void +msvc_sys_init(void) +{ + sys_win_rand_init(); + sys_init_timing(); + InitSysArchProtect(); + netconn_sem_tls_index = TlsAlloc(); + LWIP_ASSERT("TlsAlloc failed", netconn_sem_tls_index != TLS_OUT_OF_INDEXES); +} + +void +sys_init(void) +{ + msvc_sys_init(); +} + +#if !NO_SYS + +struct threadlist { + lwip_thread_fn function; + void *arg; + DWORD id; + struct threadlist *next; +}; + +static struct threadlist *lwip_win32_threads = NULL; + +err_t +sys_sem_new(sys_sem_t *sem, u8_t count) +{ + HANDLE new_sem = NULL; + + LWIP_ASSERT("sem != NULL", sem != NULL); + + new_sem = CreateSemaphore(0, count, 100000, 0); + LWIP_ASSERT("Error creating semaphore", new_sem != NULL); + if(new_sem != NULL) { + if (SYS_INITIALIZED()) { + SYS_ARCH_LOCKED(SYS_STATS_INC_USED(sem)); + } else { + SYS_STATS_INC_USED(sem); + } +#if LWIP_STATS && SYS_STATS + LWIP_ASSERT("sys_sem_new() counter overflow", lwip_stats.sys.sem.used != 0); +#endif /* LWIP_STATS && SYS_STATS*/ + sem->sem = new_sem; + return ERR_OK; + } + + /* failed to allocate memory... */ + if (SYS_INITIALIZED()) { + SYS_ARCH_LOCKED(SYS_STATS_INC(sem.err)); + } else { + SYS_STATS_INC(sem.err); + } + sem->sem = NULL; + return ERR_MEM; +} + +void +sys_sem_free(sys_sem_t *sem) +{ + /* parameter check */ + LWIP_ASSERT("sem != NULL", sem != NULL); + LWIP_ASSERT("sem->sem != NULL", sem->sem != NULL); + LWIP_ASSERT("sem->sem != INVALID_HANDLE_VALUE", sem->sem != INVALID_HANDLE_VALUE); + CloseHandle(sem->sem); + + SYS_ARCH_LOCKED(SYS_STATS_DEC(sem.used)); +#if LWIP_STATS && SYS_STATS + LWIP_ASSERT("sys_sem_free() closed more than created", lwip_stats.sys.sem.used != (u16_t)-1); +#endif /* LWIP_STATS && SYS_STATS */ + sem->sem = NULL; +} + +u32_t +sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout) +{ + DWORD ret; + LONGLONG starttime, endtime; + LWIP_ASSERT("sem != NULL", sem != NULL); + LWIP_ASSERT("sem->sem != NULL", sem->sem != NULL); + LWIP_ASSERT("sem->sem != INVALID_HANDLE_VALUE", sem->sem != INVALID_HANDLE_VALUE); + if (!timeout) { + /* wait infinite */ + starttime = sys_get_ms_longlong(); + ret = WaitForSingleObject(sem->sem, INFINITE); + LWIP_ASSERT("Error waiting for semaphore", ret == WAIT_OBJECT_0); + endtime = sys_get_ms_longlong(); + /* return the time we waited for the sem */ + return (u32_t)(endtime - starttime); + } else { + starttime = sys_get_ms_longlong(); + ret = WaitForSingleObject(sem->sem, timeout); + LWIP_ASSERT("Error waiting for semaphore", (ret == WAIT_OBJECT_0) || (ret == WAIT_TIMEOUT)); + if (ret == WAIT_OBJECT_0) { + endtime = sys_get_ms_longlong(); + /* return the time we waited for the sem */ + return (u32_t)(endtime - starttime); + } else { + /* timeout */ + return SYS_ARCH_TIMEOUT; + } + } +} + +void +sys_sem_signal(sys_sem_t *sem) +{ + BOOL ret; + sys_arch_check_not_protected(); + LWIP_ASSERT("sem != NULL", sem != NULL); + LWIP_ASSERT("sem->sem != NULL", sem->sem != NULL); + LWIP_ASSERT("sem->sem != INVALID_HANDLE_VALUE", sem->sem != INVALID_HANDLE_VALUE); + ret = ReleaseSemaphore(sem->sem, 1, NULL); + LWIP_ASSERT("Error releasing semaphore", ret != 0); + LWIP_UNUSED_ARG(ret); +} + +err_t +sys_mutex_new(sys_mutex_t *mutex) +{ + HANDLE new_mut = NULL; + + LWIP_ASSERT("mutex != NULL", mutex != NULL); + + new_mut = CreateMutex(NULL, FALSE, NULL); + LWIP_ASSERT("Error creating mutex", new_mut != NULL); + if (new_mut != NULL) { + SYS_ARCH_LOCKED(SYS_STATS_INC_USED(mutex)); +#if LWIP_STATS && SYS_STATS + LWIP_ASSERT("sys_mutex_new() counter overflow", lwip_stats.sys.mutex.used != 0); +#endif /* LWIP_STATS && SYS_STATS*/ + mutex->mut = new_mut; + return ERR_OK; + } + + /* failed to allocate memory... */ + SYS_ARCH_LOCKED(SYS_STATS_INC(mutex.err)); + mutex->mut = NULL; + return ERR_MEM; +} + +void +sys_mutex_free(sys_mutex_t *mutex) +{ + /* parameter check */ + LWIP_ASSERT("mutex != NULL", mutex != NULL); + LWIP_ASSERT("mutex->mut != NULL", mutex->mut != NULL); + LWIP_ASSERT("mutex->mut != INVALID_HANDLE_VALUE", mutex->mut != INVALID_HANDLE_VALUE); + CloseHandle(mutex->mut); + + SYS_ARCH_LOCKED(SYS_STATS_DEC(mutex.used)); +#if LWIP_STATS && SYS_STATS + LWIP_ASSERT("sys_mutex_free() closed more than created", lwip_stats.sys.mutex.used != (u16_t)-1); +#endif /* LWIP_STATS && SYS_STATS */ + mutex->mut = NULL; +} + +void sys_mutex_lock(sys_mutex_t *mutex) +{ + DWORD ret; + LWIP_ASSERT("mutex != NULL", mutex != NULL); + LWIP_ASSERT("mutex->mut != NULL", mutex->mut != NULL); + LWIP_ASSERT("mutex->mut != INVALID_HANDLE_VALUE", mutex->mut != INVALID_HANDLE_VALUE); + /* wait infinite */ + ret = WaitForSingleObject(mutex->mut, INFINITE); + LWIP_ASSERT("Error waiting for mutex", ret == WAIT_OBJECT_0); + LWIP_UNUSED_ARG(ret); +} + +void +sys_mutex_unlock(sys_mutex_t *mutex) +{ + sys_arch_check_not_protected(); + LWIP_ASSERT("mutex != NULL", mutex != NULL); + LWIP_ASSERT("mutex->mut != NULL", mutex->mut != NULL); + LWIP_ASSERT("mutex->mut != INVALID_HANDLE_VALUE", mutex->mut != INVALID_HANDLE_VALUE); + /* wait infinite */ + if (!ReleaseMutex(mutex->mut)) { + LWIP_ASSERT("Error releasing mutex", 0); + } +} + + +#ifdef _MSC_VER +const DWORD MS_VC_EXCEPTION=0x406D1388; +#pragma pack(push,8) +typedef struct tagTHREADNAME_INFO +{ + DWORD dwType; /* Must be 0x1000. */ + LPCSTR szName; /* Pointer to name (in user addr space). */ + DWORD dwThreadID; /* Thread ID (-1=caller thread). */ + DWORD dwFlags; /* Reserved for future use, must be zero. */ +} THREADNAME_INFO; +#pragma pack(pop) + +static void +SetThreadName(DWORD dwThreadID, const char* threadName) +{ + THREADNAME_INFO info; + info.dwType = 0x1000; + info.szName = threadName; + info.dwThreadID = dwThreadID; + info.dwFlags = 0; + + __try { + RaiseException(MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(ULONG_PTR), (ULONG_PTR*)&info); + } + __except(EXCEPTION_EXECUTE_HANDLER) { + } +} +#else /* _MSC_VER */ +static void +SetThreadName(DWORD dwThreadID, const char* threadName) +{ + LWIP_UNUSED_ARG(dwThreadID); + LWIP_UNUSED_ARG(threadName); +} +#endif /* _MSC_VER */ + +static DWORD WINAPI +sys_thread_function(void* arg) +{ + struct threadlist* t = (struct threadlist*)arg; +#if LWIP_NETCONN_SEM_PER_THREAD + sys_arch_netconn_sem_alloc(); +#endif + t->function(t->arg); +#if LWIP_NETCONN_SEM_PER_THREAD + sys_arch_netconn_sem_free(); +#endif + return 0; +} + +sys_thread_t +sys_thread_new(const char *name, lwip_thread_fn function, void *arg, int stacksize, int prio) +{ + struct threadlist *new_thread; + HANDLE h; + SYS_ARCH_DECL_PROTECT(lev); + + LWIP_UNUSED_ARG(name); + LWIP_UNUSED_ARG(stacksize); + LWIP_UNUSED_ARG(prio); + + new_thread = (struct threadlist*)malloc(sizeof(struct threadlist)); + LWIP_ASSERT("new_thread != NULL", new_thread != NULL); + if (new_thread != NULL) { + new_thread->function = function; + new_thread->arg = arg; + SYS_ARCH_PROTECT(lev); + new_thread->next = lwip_win32_threads; + lwip_win32_threads = new_thread; + + h = CreateThread(0, 0, sys_thread_function, new_thread, 0, &(new_thread->id)); + LWIP_ASSERT("h != 0", h != 0); + LWIP_ASSERT("h != -1", h != INVALID_HANDLE_VALUE); + LWIP_UNUSED_ARG(h); + SetThreadName(new_thread->id, name); + + SYS_ARCH_UNPROTECT(lev); + return new_thread->id; + } + return 0; +} + +#if !NO_SYS +#if LWIP_TCPIP_CORE_LOCKING + +static DWORD lwip_core_lock_holder_thread_id; + +void +sys_lock_tcpip_core(void) +{ + sys_mutex_lock(&lock_tcpip_core); + lwip_core_lock_holder_thread_id = GetCurrentThreadId(); +} + +void +sys_unlock_tcpip_core(void) +{ + lwip_core_lock_holder_thread_id = 0; + sys_mutex_unlock(&lock_tcpip_core); +} +#endif /* LWIP_TCPIP_CORE_LOCKING */ + +static DWORD lwip_tcpip_thread_id; + +void +sys_mark_tcpip_thread(void) +{ + lwip_tcpip_thread_id = GetCurrentThreadId(); +} + +void +sys_check_core_locking(void) +{ + /* Embedded systems should check we are NOT in an interrupt context here */ + + if (lwip_tcpip_thread_id != 0) { + DWORD current_thread_id = GetCurrentThreadId(); + +#if LWIP_TCPIP_CORE_LOCKING + LWIP_ASSERT("Function called without core lock", current_thread_id == lwip_core_lock_holder_thread_id); +#else /* LWIP_TCPIP_CORE_LOCKING */ + LWIP_ASSERT("Function called from wrong thread", current_thread_id == lwip_tcpip_thread_id); +#endif /* LWIP_TCPIP_CORE_LOCKING */ + LWIP_UNUSED_ARG(current_thread_id); /* for LWIP_NOASSERT */ + } +} +#endif /* !NO_SYS */ + +err_t +sys_mbox_new(sys_mbox_t *mbox, int size) +{ + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_UNUSED_ARG(size); + + mbox->sem = CreateSemaphore(0, 0, MAX_QUEUE_ENTRIES, 0); + LWIP_ASSERT("Error creating semaphore", mbox->sem != NULL); + if (mbox->sem == NULL) { + SYS_ARCH_LOCKED(SYS_STATS_INC(mbox.err)); + return ERR_MEM; + } + memset(&mbox->q_mem, 0, sizeof(u32_t)*MAX_QUEUE_ENTRIES); + mbox->head = 0; + mbox->tail = 0; + SYS_ARCH_LOCKED(SYS_STATS_INC_USED(mbox)); +#if LWIP_STATS && SYS_STATS + LWIP_ASSERT("sys_mbox_new() counter overflow", lwip_stats.sys.mbox.used != 0); +#endif /* LWIP_STATS && SYS_STATS */ + return ERR_OK; +} + +void +sys_mbox_free(sys_mbox_t *mbox) +{ + /* parameter check */ + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("mbox->sem != NULL", mbox->sem != NULL); + LWIP_ASSERT("mbox->sem != INVALID_HANDLE_VALUE", mbox->sem != INVALID_HANDLE_VALUE); + + CloseHandle(mbox->sem); + + SYS_STATS_DEC(mbox.used); +#if LWIP_STATS && SYS_STATS + LWIP_ASSERT( "sys_mbox_free() ", lwip_stats.sys.mbox.used != (u16_t)-1); +#endif /* LWIP_STATS && SYS_STATS */ + mbox->sem = NULL; +} + +void +sys_mbox_post(sys_mbox_t *q, void *msg) +{ + BOOL ret; + SYS_ARCH_DECL_PROTECT(lev); + sys_arch_check_not_protected(); + + /* parameter check */ + LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL); + LWIP_ASSERT("q->sem != NULL", q->sem != NULL); + LWIP_ASSERT("q->sem != INVALID_HANDLE_VALUE", q->sem != INVALID_HANDLE_VALUE); + + SYS_ARCH_PROTECT(lev); + q->q_mem[q->head] = msg; + q->head++; + if (q->head >= MAX_QUEUE_ENTRIES) { + q->head = 0; + } + LWIP_ASSERT("mbox is full!", q->head != q->tail); + ret = ReleaseSemaphore(q->sem, 1, 0); + LWIP_ASSERT("Error releasing sem", ret != 0); + LWIP_UNUSED_ARG(ret); + + SYS_ARCH_UNPROTECT(lev); +} + +err_t +sys_mbox_trypost(sys_mbox_t *q, void *msg) +{ + u32_t new_head; + BOOL ret; + SYS_ARCH_DECL_PROTECT(lev); + sys_arch_check_not_protected(); + + /* parameter check */ + LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL); + LWIP_ASSERT("q->sem != NULL", q->sem != NULL); + LWIP_ASSERT("q->sem != INVALID_HANDLE_VALUE", q->sem != INVALID_HANDLE_VALUE); + + SYS_ARCH_PROTECT(lev); + + new_head = q->head + 1; + if (new_head >= MAX_QUEUE_ENTRIES) { + new_head = 0; + } + if (new_head == q->tail) { + SYS_ARCH_UNPROTECT(lev); + return ERR_MEM; + } + + q->q_mem[q->head] = msg; + q->head = new_head; + LWIP_ASSERT("mbox is full!", q->head != q->tail); + ret = ReleaseSemaphore(q->sem, 1, 0); + LWIP_ASSERT("Error releasing sem", ret != 0); + LWIP_UNUSED_ARG(ret); + + SYS_ARCH_UNPROTECT(lev); + return ERR_OK; +} + +err_t +sys_mbox_trypost_fromisr(sys_mbox_t *q, void *msg) +{ + return sys_mbox_trypost(q, msg); +} + +u32_t +sys_arch_mbox_fetch(sys_mbox_t *q, void **msg, u32_t timeout) +{ + DWORD ret; + LONGLONG starttime, endtime; + SYS_ARCH_DECL_PROTECT(lev); + + /* parameter check */ + LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL); + LWIP_ASSERT("q->sem != NULL", q->sem != NULL); + LWIP_ASSERT("q->sem != INVALID_HANDLE_VALUE", q->sem != INVALID_HANDLE_VALUE); + + if (timeout == 0) { + timeout = INFINITE; + } + starttime = sys_get_ms_longlong(); + ret = WaitForSingleObject(q->sem, timeout); + if (ret == WAIT_OBJECT_0) { + SYS_ARCH_PROTECT(lev); + if (msg != NULL) { + *msg = q->q_mem[q->tail]; + } + + q->tail++; + if (q->tail >= MAX_QUEUE_ENTRIES) { + q->tail = 0; + } + SYS_ARCH_UNPROTECT(lev); + endtime = sys_get_ms_longlong(); + return (u32_t)(endtime - starttime); + } else { + LWIP_ASSERT("Error waiting for sem", ret == WAIT_TIMEOUT); + if (msg != NULL) { + *msg = NULL; + } + + return SYS_ARCH_TIMEOUT; + } +} + +u32_t +sys_arch_mbox_tryfetch(sys_mbox_t *q, void **msg) +{ + DWORD ret; + SYS_ARCH_DECL_PROTECT(lev); + + /* parameter check */ + LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL); + LWIP_ASSERT("q->sem != NULL", q->sem != NULL); + LWIP_ASSERT("q->sem != INVALID_HANDLE_VALUE", q->sem != INVALID_HANDLE_VALUE); + + ret = WaitForSingleObject(q->sem, 0); + if (ret == WAIT_OBJECT_0) { + SYS_ARCH_PROTECT(lev); + if (msg != NULL) { + *msg = q->q_mem[q->tail]; + } + + q->tail++; + if (q->tail >= MAX_QUEUE_ENTRIES) { + q->tail = 0; + } + SYS_ARCH_UNPROTECT(lev); + return 0; + } else { + LWIP_ASSERT("Error waiting for sem", ret == WAIT_TIMEOUT); + if (msg != NULL) { + *msg = NULL; + } + + return SYS_MBOX_EMPTY; + } +} + +#if LWIP_NETCONN_SEM_PER_THREAD +sys_sem_t* +sys_arch_netconn_sem_get(void) +{ + LPVOID tls_data = TlsGetValue(netconn_sem_tls_index); + return (sys_sem_t*)tls_data; +} + +void +sys_arch_netconn_sem_alloc(void) +{ + sys_sem_t *sem; + err_t err; + BOOL done; + + sem = (sys_sem_t*)malloc(sizeof(sys_sem_t)); + LWIP_ASSERT("failed to allocate memory for TLS semaphore", sem != NULL); + err = sys_sem_new(sem, 0); + LWIP_ASSERT("failed to initialise TLS semaphore", err == ERR_OK); + done = TlsSetValue(netconn_sem_tls_index, sem); + LWIP_UNUSED_ARG(done); + LWIP_ASSERT("failed to initialise TLS semaphore storage", done == TRUE); +} + +void +sys_arch_netconn_sem_free(void) +{ + LPVOID tls_data = TlsGetValue(netconn_sem_tls_index); + if (tls_data != NULL) { + BOOL done; + free(tls_data); + done = TlsSetValue(netconn_sem_tls_index, NULL); + LWIP_UNUSED_ARG(done); + LWIP_ASSERT("failed to de-init TLS semaphore storage", done == TRUE); + } +} +#endif /* LWIP_NETCONN_SEM_PER_THREAD */ + +#endif /* !NO_SYS */ + +/* get keyboard state to terminate the debug app on any kbhit event using win32 API */ +int +lwip_win32_keypressed(void) +{ + INPUT_RECORD rec; + DWORD num = 0; + HANDLE h = GetStdHandle(STD_INPUT_HANDLE); + BOOL ret = PeekConsoleInput(h, &rec, 1, &num); + if (ret && num) { + ReadConsoleInput(h, &rec, 1, &num); + if (rec.EventType == KEY_EVENT) { + if (rec.Event.KeyEvent.bKeyDown) { + /* not a special key? */ + if (rec.Event.KeyEvent.uChar.AsciiChar != 0) { + return 1; + } + } + } + } + return 0; +} + +#include + +/* This is an example implementation for LWIP_PLATFORM_DIAG: + * format a string and pass it to your output function. + */ +void +lwip_win32_platform_diag(const char *format, ...) +{ + va_list ap; + /* get the varargs */ + va_start(ap, format); + /* print via varargs; to use another output function, you could use + vsnprintf here */ + vprintf(format, ap); + va_end(ap); +} diff --git a/middleware/lwip/doc/FILES b/middleware/lwip/doc/FILES new file mode 100644 index 0000000..e588575 --- /dev/null +++ b/middleware/lwip/doc/FILES @@ -0,0 +1,9 @@ +doxygen/ - Configuration files and scripts to create the lwIP doxygen source + documentation (found at http://www.nongnu.org/lwip/) + +savannah.txt - How to obtain the current development source code. +contrib.txt - How to contribute to lwIP as a developer. +rawapi.txt - The documentation for the core API of lwIP. + Also provides an overview about the other APIs and multithreading. +sys_arch.txt - The documentation for a system abstraction layer of lwIP. +ppp.txt - Documentation of the PPP interface for lwIP. diff --git a/middleware/lwip/doc/NO_SYS_SampleCode.c b/middleware/lwip/doc/NO_SYS_SampleCode.c new file mode 100644 index 0000000..b263420 --- /dev/null +++ b/middleware/lwip/doc/NO_SYS_SampleCode.c @@ -0,0 +1,121 @@ +void +eth_mac_irq() +{ + /* Service MAC IRQ here */ + + /* Allocate pbuf from pool (avoid using heap in interrupts) */ + struct pbuf* p = pbuf_alloc(PBUF_RAW, eth_data_count, PBUF_POOL); + + if(p != NULL) { + /* Copy ethernet frame into pbuf */ + pbuf_take(p, eth_data, eth_data_count); + + /* Put in a queue which is processed in main loop */ + if(!queue_try_put(&queue, p)) { + /* queue is full -> packet loss */ + pbuf_free(p); + } + } +} + +static err_t +netif_output(struct netif *netif, struct pbuf *p) +{ + LINK_STATS_INC(link.xmit); + + /* Update SNMP stats (only if you use SNMP) */ + MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p->tot_len); + int unicast = ((p->payload[0] & 0x01) == 0); + if (unicast) { + MIB2_STATS_NETIF_INC(netif, ifoutucastpkts); + } else { + MIB2_STATS_NETIF_INC(netif, ifoutnucastpkts); + } + + lock_interrupts(); + pbuf_copy_partial(p, mac_send_buffer, p->tot_len, 0); + /* Start MAC transmit here */ + unlock_interrupts(); + + return ERR_OK; +} + +static void +netif_status_callback(struct netif *netif) +{ + printf("netif status changed %s\n", ip4addr_ntoa(netif_ip4_addr(netif))); +} + +static err_t +netif_init(struct netif *netif) +{ + netif->linkoutput = netif_output; + netif->output = etharp_output; + netif->output_ip6 = ethip6_output; + netif->mtu = ETHERNET_MTU; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP | NETIF_FLAG_MLD6; + MIB2_INIT_NETIF(netif, snmp_ifType_ethernet_csmacd, 100000000); + + SMEMCPY(netif->hwaddr, your_mac_address_goes_here, ETH_HWADDR_LEN); + netif->hwaddr_len = ETH_HWADDR_LEN; + + return ERR_OK; +} + +void +main(void) +{ + struct netif netif; + + lwip_init(); + + netif_add(&netif, IP4_ADDR_ANY, IP4_ADDR_ANY, IP4_ADDR_ANY, NULL, netif_init, netif_input); + netif.name[0] = 'e'; + netif.name[1] = '0'; + netif_create_ip6_linklocal_address(&netif, 1); + netif_set_status_callback(&netif, netif_status_callback); + netif_set_default(&netif); + netif_set_up(&netif); + + /* Start DHCP and HTTPD */ + dhcp_start(&netif ); + httpd_init(); + + while(1) { + /* Check link state, e.g. via MDIO communication with PHY */ + if(link_state_changed()) { + if(link_is_up()) { + netif_set_link_up(&netif); + } else { + netif_set_link_down(&netif); + } + } + + /* Check for received frames, feed them to lwIP */ + lock_interrupts(); + struct pbuf* p = queue_try_get(&queue); + unlock_interrupts(); + + if(p != NULL) { + LINK_STATS_INC(link.recv); + + /* Update SNMP stats (only if you use SNMP) */ + MIB2_STATS_NETIF_ADD(netif, ifinoctets, p->tot_len); + int unicast = ((p->payload[0] & 0x01) == 0); + if (unicast) { + MIB2_STATS_NETIF_INC(netif, ifinucastpkts); + } else { + MIB2_STATS_NETIF_INC(netif, ifinnucastpkts); + } + + if(netif.input(p, &netif) != ERR_OK) { + pbuf_free(p); + } + } + + /* Cyclic lwIP timers check */ + sys_check_timeouts(); + + /* your application goes here */ + } +} diff --git a/middleware/lwip/doc/ZeroCopyRx.c b/middleware/lwip/doc/ZeroCopyRx.c new file mode 100644 index 0000000..600b13a --- /dev/null +++ b/middleware/lwip/doc/ZeroCopyRx.c @@ -0,0 +1,45 @@ +typedef struct my_custom_pbuf +{ + struct pbuf_custom p; + void* dma_descriptor; +} my_custom_pbuf_t; + +LWIP_MEMPOOL_DECLARE(RX_POOL, 10, sizeof(my_custom_pbuf_t), "Zero-copy RX PBUF pool"); + +void my_pbuf_free_custom(void* p) +{ + SYS_ARCH_DECL_PROTECT(old_level); + + my_custom_pbuf_t* my_puf = (my_custom_pbuf_t*)p; + + // invalidate data cache here - lwIP and/or application may have written into buffer! + // (invalidate is faster than flushing, and no one needs the correct data in the buffer) + invalidate_cpu_cache(p->payload, p->tot_len); + + SYS_ARCH_PROTECT(old_level); + free_rx_dma_descriptor(my_pbuf->dma_descriptor); + LWIP_MEMPOOL_FREE(RX_POOL, my_pbuf); + SYS_ARCH_UNPROTECT(old_level); +} + +void eth_rx_irq() +{ + dma_descriptor* dma_desc = get_RX_DMA_descriptor_from_ethernet(); + my_custom_pbuf_t* my_pbuf = (my_custom_pbuf_t*)LWIP_MEMPOOL_ALLOC(RX_POOL); + + my_pbuf->p.custom_free_function = my_pbuf_free_custom; + my_pbuf->dma_descriptor = dma_desc; + + invalidate_cpu_cache(dma_desc->rx_data, dma_desc->rx_length); + + struct pbuf* p = pbuf_alloced_custom(PBUF_RAW, + dma_desc->rx_length, + PBUF_REF, + &my_pbuf->p, + dma_desc->rx_data, + dma_desc->max_buffer_size); + + if(netif->input(p, netif) != ERR_OK) { + pbuf_free(p); + } +} diff --git a/middleware/lwip/doc/contrib.txt b/middleware/lwip/doc/contrib.txt new file mode 100644 index 0000000..2a44857 --- /dev/null +++ b/middleware/lwip/doc/contrib.txt @@ -0,0 +1,58 @@ +1 Introduction + +This document describes some guidelines for people participating +in lwIP development. + +2 How to contribute to lwIP + +Here is a short list of suggestions to anybody working with lwIP and +trying to contribute bug reports, fixes, enhancements, platform ports etc. +First of all as you may already know lwIP is a volunteer project so feedback +to fixes or questions might often come late. Hopefully the bug and patch tracking +features of Savannah help us not lose users' input. + +2.1 Source code style: + +1. do not use tabs. +2. indentation is two spaces per level (i.e. per tab). +3. end debug messages with a trailing newline (\n). +4. one space between keyword and opening bracket. +5. no space between function and opening bracket. +6. one space and no newline before opening curly braces of a block. +7. closing curly brace on a single line. +8. spaces surrounding assignment and comparisons. +9. don't initialize static and/or global variables to zero, the compiler takes care of that. +10. use current source code style as further reference. + +2.2 Source code documentation style: + +1. JavaDoc compliant and Doxygen compatible. +2. Function documentation above functions in .c files, not .h files. + (This forces you to synchronize documentation and implementation.) +3. Use current documentation style as further reference. + +2.3 Bug reports and patches: + +1. Make sure you are reporting bugs or send patches against the latest + sources. (From the latest release and/or the current Git sources.) +2. If you think you found a bug make sure it's not already filed in the + bugtracker at Savannah. +3. If you have a fix put the patch on Savannah. If it is a patch that affects + both core and arch specific stuff please separate them so that the core can + be applied separately while leaving the other patch 'open'. The preferred way + is to NOT touch archs you can't test and let maintainers take care of them. + This is a good way to see if they are used at all - the same goes for unix + netifs except tapif. +4. Do not file a bug and post a fix to it to the patch area. Either a bug report + or a patch will be enough. + If you correct an existing bug then attach the patch to the bug rather than creating a new entry in the patch area. +5. Patches should be specific to a single change or to related changes. Do not mix bugfixes with spelling and other + trivial fixes unless the bugfix is trivial too. Do not reorganize code and rename identifiers in the same patch you + change behaviour if not necessary. A patch is easier to read and understand if it's to the point and short than + if it's not to the point and long :) so the chances for it to be applied are greater. + +2.4 Platform porters: + +1. If you have ported lwIP to a platform (an OS, a uC/processor or a combination of these) and + you think it could benefit others[1] you might want discuss this on the mailing list. You + can also ask for Git access to submit and maintain your port in the lwIP/contrib subdir. diff --git a/middleware/lwip/doc/doxygen/generate.bat b/middleware/lwip/doc/doxygen/generate.bat new file mode 100644 index 0000000..99afb12 --- /dev/null +++ b/middleware/lwip/doc/doxygen/generate.bat @@ -0,0 +1 @@ +doxygen lwip.Doxyfile diff --git a/middleware/lwip/doc/doxygen/generate.sh b/middleware/lwip/doc/doxygen/generate.sh new file mode 100644 index 0000000..89344b0 --- /dev/null +++ b/middleware/lwip/doc/doxygen/generate.sh @@ -0,0 +1,3 @@ +#!/bin/sh + +doxygen lwip.Doxyfile diff --git a/middleware/lwip/doc/doxygen/lwip.Doxyfile b/middleware/lwip/doc/doxygen/lwip.Doxyfile new file mode 100644 index 0000000..750e0ad --- /dev/null +++ b/middleware/lwip/doc/doxygen/lwip.Doxyfile @@ -0,0 +1,2531 @@ +# Doxyfile 1.8.13 + +# This file describes the settings to be used by the documentation system +# doxygen (www.doxygen.org) for a project. +# +# All text after a double hash (##) is considered a comment and is placed in +# front of the TAG it is preceding. +# +# All text after a single hash (#) is considered a comment and will be ignored. +# The format is: +# TAG = value [value, ...] +# For lists, items can also be appended using: +# TAG += value [value, ...] +# Values that contain spaces should be placed between quotes (\" \"). + +#--------------------------------------------------------------------------- +# Project related configuration options +#--------------------------------------------------------------------------- + +# This tag specifies the encoding used for all characters in the config file +# that follow. The default is UTF-8 which is also the encoding used for all text +# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv +# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv +# for the list of possible encodings. +# The default value is: UTF-8. + +DOXYFILE_ENCODING = UTF-8 + +# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by +# double-quotes, unless you are using Doxywizard) that should identify the +# project for which the documentation is generated. This name is used in the +# title of most generated pages and in a few other places. +# The default value is: My Project. + +PROJECT_NAME = "lwIP" + +# The PROJECT_NUMBER tag can be used to enter a project or revision number. This +# could be handy for archiving the generated documentation or if some version +# control system is used. + +PROJECT_NUMBER = "2.2.0.dev" + +# Using the PROJECT_BRIEF tag one can provide an optional one line description +# for a project that appears at the top of each page and should give viewer a +# quick idea about the purpose of the project. Keep the description short. + +PROJECT_BRIEF = "Lightweight IP stack" + +# With the PROJECT_LOGO tag one can specify a logo or an icon that is included +# in the documentation. The maximum height of the logo should not exceed 55 +# pixels and the maximum width should not exceed 200 pixels. Doxygen will copy +# the logo to the output directory. + +PROJECT_LOGO = + +# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path +# into which the generated documentation will be written. If a relative path is +# entered, it will be relative to the location where doxygen was started. If +# left blank the current directory will be used. + +OUTPUT_DIRECTORY = "output" + +# If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub- +# directories (in 2 levels) under the output directory of each output format and +# will distribute the generated files over these directories. Enabling this +# option can be useful when feeding doxygen a huge amount of source files, where +# putting all generated files in the same directory would otherwise causes +# performance problems for the file system. +# The default value is: NO. + +CREATE_SUBDIRS = NO + +# If the ALLOW_UNICODE_NAMES tag is set to YES, doxygen will allow non-ASCII +# characters to appear in the names of generated files. If set to NO, non-ASCII +# characters will be escaped, for example _xE3_x81_x84 will be used for Unicode +# U+3044. +# The default value is: NO. + +ALLOW_UNICODE_NAMES = NO + +# The OUTPUT_LANGUAGE tag is used to specify the language in which all +# documentation generated by doxygen is written. Doxygen will use this +# information to generate all constant output in the proper language. +# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese, +# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States), +# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian, +# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages), +# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian, +# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian, +# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish, +# Ukrainian and Vietnamese. +# The default value is: English. + +OUTPUT_LANGUAGE = English + +# If the BRIEF_MEMBER_DESC tag is set to YES, doxygen will include brief member +# descriptions after the members that are listed in the file and class +# documentation (similar to Javadoc). Set to NO to disable this. +# The default value is: YES. + +BRIEF_MEMBER_DESC = YES + +# If the REPEAT_BRIEF tag is set to YES, doxygen will prepend the brief +# description of a member or function before the detailed description +# +# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the +# brief descriptions will be completely suppressed. +# The default value is: YES. + +REPEAT_BRIEF = YES + +# This tag implements a quasi-intelligent brief description abbreviator that is +# used to form the text in various listings. Each string in this list, if found +# as the leading text of the brief description, will be stripped from the text +# and the result, after processing the whole list, is used as the annotated +# text. Otherwise, the brief description is used as-is. If left blank, the +# following values are used ($name is automatically replaced with the name of +# the entity):The $name class, The $name widget, The $name file, is, provides, +# specifies, contains, represents, a, an and the. + +ABBREVIATE_BRIEF = "The $name class " \ + "The $name widget " \ + "The $name file " \ + is \ + provides \ + specifies \ + contains \ + represents \ + a \ + an \ + the + +# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then +# doxygen will generate a detailed section even if there is only a brief +# description. +# The default value is: NO. + +ALWAYS_DETAILED_SEC = NO + +# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all +# inherited members of a class in the documentation of that class as if those +# members were ordinary class members. Constructors, destructors and assignment +# operators of the base classes will not be shown. +# The default value is: NO. + +INLINE_INHERITED_MEMB = NO + +# If the FULL_PATH_NAMES tag is set to YES, doxygen will prepend the full path +# before files name in the file list and in the header files. If set to NO the +# shortest path that makes the file name unique will be used +# The default value is: YES. + +FULL_PATH_NAMES = YES + +# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path. +# Stripping is only done if one of the specified strings matches the left-hand +# part of the path. The tag can be used to show relative paths in the file list. +# If left blank the directory from which doxygen is run is used as the path to +# strip. +# +# Note that you can specify absolute paths here, but also relative paths, which +# will be relative from the directory where doxygen is started. +# This tag requires that the tag FULL_PATH_NAMES is set to YES. + +STRIP_FROM_PATH = ../../ + +# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the +# path mentioned in the documentation of a class, which tells the reader which +# header file to include in order to use a class. If left blank only the name of +# the header file containing the class definition is used. Otherwise one should +# specify the list of include paths that are normally passed to the compiler +# using the -I flag. + +STRIP_FROM_INC_PATH = + +# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but +# less readable) file names. This can be useful is your file systems doesn't +# support long names like on DOS, Mac, or CD-ROM. +# The default value is: NO. + +SHORT_NAMES = NO + +# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the +# first line (until the first dot) of a Javadoc-style comment as the brief +# description. If set to NO, the Javadoc-style will behave just like regular Qt- +# style comments (thus requiring an explicit @brief command for a brief +# description.) +# The default value is: NO. + +JAVADOC_AUTOBRIEF = NO + +# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first +# line (until the first dot) of a Qt-style comment as the brief description. If +# set to NO, the Qt-style will behave just like regular Qt-style comments (thus +# requiring an explicit \brief command for a brief description.) +# The default value is: NO. + +QT_AUTOBRIEF = NO + +# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a +# multi-line C++ special comment block (i.e. a block of //! or /// comments) as +# a brief description. This used to be the default behavior. The new default is +# to treat a multi-line C++ comment block as a detailed description. Set this +# tag to YES if you prefer the old behavior instead. +# +# Note that setting this tag to YES also means that rational rose comments are +# not recognized any more. +# The default value is: NO. + +MULTILINE_CPP_IS_BRIEF = NO + +# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the +# documentation from any documented member that it re-implements. +# The default value is: YES. + +INHERIT_DOCS = YES + +# If the SEPARATE_MEMBER_PAGES tag is set to YES then doxygen will produce a new +# page for each member. If set to NO, the documentation of a member will be part +# of the file/class/namespace that contains it. +# The default value is: NO. + +SEPARATE_MEMBER_PAGES = NO + +# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen +# uses this value to replace tabs by spaces in code fragments. +# Minimum value: 1, maximum value: 16, default value: 4. + +TAB_SIZE = 8 + +# This tag can be used to specify a number of aliases that act as commands in +# the documentation. An alias has the form: +# name=value +# For example adding +# "sideeffect=@par Side Effects:\n" +# will allow you to put the command \sideeffect (or @sideeffect) in the +# documentation, which will result in a user-defined paragraph with heading +# "Side Effects:". You can put \n's in the value part of an alias to insert +# newlines. + +ALIASES = + +# This tag can be used to specify a number of word-keyword mappings (TCL only). +# A mapping has the form "name=value". For example adding "class=itcl::class" +# will allow you to use the command class in the itcl::class meaning. + +TCL_SUBST = + +# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources +# only. Doxygen will then generate output that is more tailored for C. For +# instance, some of the names that are used will be different. The list of all +# members will be omitted, etc. +# The default value is: NO. + +OPTIMIZE_OUTPUT_FOR_C = YES + +# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or +# Python sources only. Doxygen will then generate output that is more tailored +# for that language. For instance, namespaces will be presented as packages, +# qualified scopes will look different, etc. +# The default value is: NO. + +OPTIMIZE_OUTPUT_JAVA = NO + +# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran +# sources. Doxygen will then generate output that is tailored for Fortran. +# The default value is: NO. + +OPTIMIZE_FOR_FORTRAN = NO + +# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL +# sources. Doxygen will then generate output that is tailored for VHDL. +# The default value is: NO. + +OPTIMIZE_OUTPUT_VHDL = NO + +# Doxygen selects the parser to use depending on the extension of the files it +# parses. With this tag you can assign which parser to use for a given +# extension. Doxygen has a built-in mapping, but you can override or extend it +# using this tag. The format is ext=language, where ext is a file extension, and +# language is one of the parsers supported by doxygen: IDL, Java, Javascript, +# C#, C, C++, D, PHP, Objective-C, Python, Fortran (fixed format Fortran: +# FortranFixed, free formatted Fortran: FortranFree, unknown formatted Fortran: +# Fortran. In the later case the parser tries to guess whether the code is fixed +# or free formatted code, this is the default for Fortran type files), VHDL. For +# instance to make doxygen treat .inc files as Fortran files (default is PHP), +# and .f files as C (default is Fortran), use: inc=Fortran f=C. +# +# Note: For files without extension you can use no_extension as a placeholder. +# +# Note that for custom extensions you also need to set FILE_PATTERNS otherwise +# the files are not read by doxygen. + +EXTENSION_MAPPING = + +# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments +# according to the Markdown format, which allows for more readable +# documentation. See http://daringfireball.net/projects/markdown/ for details. +# The output of markdown processing is further processed by doxygen, so you can +# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in +# case of backward compatibilities issues. +# The default value is: YES. + +MARKDOWN_SUPPORT = YES + +# When the TOC_INCLUDE_HEADINGS tag is set to a non-zero value, all headings up +# to that level are automatically included in the table of contents, even if +# they do not have an id attribute. +# Note: This feature currently applies only to Markdown headings. +# Minimum value: 0, maximum value: 99, default value: 0. +# This tag requires that the tag MARKDOWN_SUPPORT is set to YES. + +TOC_INCLUDE_HEADINGS = 0 + +# When enabled doxygen tries to link words that correspond to documented +# classes, or namespaces to their corresponding documentation. Such a link can +# be prevented in individual cases by putting a % sign in front of the word or +# globally by setting AUTOLINK_SUPPORT to NO. +# The default value is: YES. + +AUTOLINK_SUPPORT = YES + +# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want +# to include (a tag file for) the STL sources as input, then you should set this +# tag to YES in order to let doxygen match functions declarations and +# definitions whose arguments contain STL classes (e.g. func(std::string); +# versus func(std::string) {}). This also make the inheritance and collaboration +# diagrams that involve STL classes more complete and accurate. +# The default value is: NO. + +BUILTIN_STL_SUPPORT = NO + +# If you use Microsoft's C++/CLI language, you should set this option to YES to +# enable parsing support. +# The default value is: NO. + +CPP_CLI_SUPPORT = NO + +# Set the SIP_SUPPORT tag to YES if your project consists of sip (see: +# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen +# will parse them like normal C++ but will assume all classes use public instead +# of private inheritance when no explicit protection keyword is present. +# The default value is: NO. + +SIP_SUPPORT = NO + +# For Microsoft's IDL there are propget and propput attributes to indicate +# getter and setter methods for a property. Setting this option to YES will make +# doxygen to replace the get and set methods by a property in the documentation. +# This will only work if the methods are indeed getting or setting a simple +# type. If this is not the case, or you want to show the methods anyway, you +# should set this option to NO. +# The default value is: YES. + +IDL_PROPERTY_SUPPORT = YES + +# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC +# tag is set to YES then doxygen will reuse the documentation of the first +# member in the group (if any) for the other members of the group. By default +# all members of a group must be documented explicitly. +# The default value is: NO. + +DISTRIBUTE_GROUP_DOC = NO + +# If one adds a struct or class to a group and this option is enabled, then also +# any nested class or struct is added to the same group. By default this option +# is disabled and one has to add nested compounds explicitly via \ingroup. +# The default value is: NO. + +GROUP_NESTED_COMPOUNDS = NO + +# Set the SUBGROUPING tag to YES to allow class member groups of the same type +# (for instance a group of public functions) to be put as a subgroup of that +# type (e.g. under the Public Functions section). Set it to NO to prevent +# subgrouping. Alternatively, this can be done per class using the +# \nosubgrouping command. +# The default value is: YES. + +SUBGROUPING = YES + +# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions +# are shown inside the group in which they are included (e.g. using \ingroup) +# instead of on a separate page (for HTML and Man pages) or section (for LaTeX +# and RTF). +# +# Note that this feature does not work in combination with +# SEPARATE_MEMBER_PAGES. +# The default value is: NO. + +INLINE_GROUPED_CLASSES = NO + +# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions +# with only public data fields or simple typedef fields will be shown inline in +# the documentation of the scope in which they are defined (i.e. file, +# namespace, or group documentation), provided this scope is documented. If set +# to NO, structs, classes, and unions are shown on a separate page (for HTML and +# Man pages) or section (for LaTeX and RTF). +# The default value is: NO. + +INLINE_SIMPLE_STRUCTS = NO + +# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or +# enum is documented as struct, union, or enum with the name of the typedef. So +# typedef struct TypeS {} TypeT, will appear in the documentation as a struct +# with name TypeT. When disabled the typedef will appear as a member of a file, +# namespace, or class. And the struct will be named TypeS. This can typically be +# useful for C code in case the coding convention dictates that all compound +# types are typedef'ed and only the typedef is referenced, never the tag name. +# The default value is: NO. + +TYPEDEF_HIDES_STRUCT = NO + +# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This +# cache is used to resolve symbols given their name and scope. Since this can be +# an expensive process and often the same symbol appears multiple times in the +# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small +# doxygen will become slower. If the cache is too large, memory is wasted. The +# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range +# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536 +# symbols. At the end of a run doxygen will report the cache usage and suggest +# the optimal cache size from a speed point of view. +# Minimum value: 0, maximum value: 9, default value: 0. + +LOOKUP_CACHE_SIZE = 0 + +#--------------------------------------------------------------------------- +# Build related configuration options +#--------------------------------------------------------------------------- + +# If the EXTRACT_ALL tag is set to YES, doxygen will assume all entities in +# documentation are documented, even if no documentation was available. Private +# class members and static file members will be hidden unless the +# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES. +# Note: This will also disable the warnings about undocumented members that are +# normally produced when WARNINGS is set to YES. +# The default value is: NO. + +EXTRACT_ALL = NO + +# If the EXTRACT_PRIVATE tag is set to YES, all private members of a class will +# be included in the documentation. +# The default value is: NO. + +EXTRACT_PRIVATE = NO + +# If the EXTRACT_PACKAGE tag is set to YES, all members with package or internal +# scope will be included in the documentation. +# The default value is: NO. + +EXTRACT_PACKAGE = NO + +# If the EXTRACT_STATIC tag is set to YES, all static members of a file will be +# included in the documentation. +# The default value is: NO. + +EXTRACT_STATIC = NO + +# If the EXTRACT_LOCAL_CLASSES tag is set to YES, classes (and structs) defined +# locally in source files will be included in the documentation. If set to NO, +# only classes defined in header files are included. Does not have any effect +# for Java sources. +# The default value is: YES. + +EXTRACT_LOCAL_CLASSES = YES + +# This flag is only useful for Objective-C code. If set to YES, local methods, +# which are defined in the implementation section but not in the interface are +# included in the documentation. If set to NO, only methods in the interface are +# included. +# The default value is: NO. + +EXTRACT_LOCAL_METHODS = NO + +# If this flag is set to YES, the members of anonymous namespaces will be +# extracted and appear in the documentation as a namespace called +# 'anonymous_namespace{file}', where file will be replaced with the base name of +# the file that contains the anonymous namespace. By default anonymous namespace +# are hidden. +# The default value is: NO. + +EXTRACT_ANON_NSPACES = NO + +# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all +# undocumented members inside documented classes or files. If set to NO these +# members will be included in the various overviews, but no documentation +# section is generated. This option has no effect if EXTRACT_ALL is enabled. +# The default value is: NO. + +HIDE_UNDOC_MEMBERS = YES + +# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all +# undocumented classes that are normally visible in the class hierarchy. If set +# to NO, these classes will be included in the various overviews. This option +# has no effect if EXTRACT_ALL is enabled. +# The default value is: NO. + +HIDE_UNDOC_CLASSES = YES + +# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend +# (class|struct|union) declarations. If set to NO, these declarations will be +# included in the documentation. +# The default value is: NO. + +HIDE_FRIEND_COMPOUNDS = NO + +# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any +# documentation blocks found inside the body of a function. If set to NO, these +# blocks will be appended to the function's detailed documentation block. +# The default value is: NO. + +HIDE_IN_BODY_DOCS = NO + +# The INTERNAL_DOCS tag determines if documentation that is typed after a +# \internal command is included. If the tag is set to NO then the documentation +# will be excluded. Set it to YES to include the internal documentation. +# The default value is: NO. + +INTERNAL_DOCS = NO + +# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file +# names in lower-case letters. If set to YES, upper-case letters are also +# allowed. This is useful if you have classes or files whose names only differ +# in case and if your file system supports case sensitive file names. Windows +# and Mac users are advised to set this option to NO. +# The default value is: system dependent. + +CASE_SENSE_NAMES = NO + +# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with +# their full class and namespace scopes in the documentation. If set to YES, the +# scope will be hidden. +# The default value is: NO. + +HIDE_SCOPE_NAMES = NO + +# If the HIDE_COMPOUND_REFERENCE tag is set to NO (default) then doxygen will +# append additional text to a page's title, such as Class Reference. If set to +# YES the compound reference will be hidden. +# The default value is: NO. + +HIDE_COMPOUND_REFERENCE= NO + +# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of +# the files that are included by a file in the documentation of that file. +# The default value is: YES. + +SHOW_INCLUDE_FILES = YES + +# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each +# grouped member an include statement to the documentation, telling the reader +# which file to include in order to use the member. +# The default value is: NO. + +SHOW_GROUPED_MEMB_INC = NO + +# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include +# files with double quotes in the documentation rather than with sharp brackets. +# The default value is: NO. + +FORCE_LOCAL_INCLUDES = NO + +# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the +# documentation for inline members. +# The default value is: YES. + +INLINE_INFO = YES + +# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the +# (detailed) documentation of file and class members alphabetically by member +# name. If set to NO, the members will appear in declaration order. +# The default value is: YES. + +SORT_MEMBER_DOCS = YES + +# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief +# descriptions of file, namespace and class members alphabetically by member +# name. If set to NO, the members will appear in declaration order. Note that +# this will also influence the order of the classes in the class list. +# The default value is: NO. + +SORT_BRIEF_DOCS = NO + +# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the +# (brief and detailed) documentation of class members so that constructors and +# destructors are listed first. If set to NO the constructors will appear in the +# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS. +# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief +# member documentation. +# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting +# detailed member documentation. +# The default value is: NO. + +SORT_MEMBERS_CTORS_1ST = NO + +# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy +# of group names into alphabetical order. If set to NO the group names will +# appear in their defined order. +# The default value is: NO. + +SORT_GROUP_NAMES = NO + +# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by +# fully-qualified names, including namespaces. If set to NO, the class list will +# be sorted only by class name, not including the namespace part. +# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES. +# Note: This option applies only to the class list, not to the alphabetical +# list. +# The default value is: NO. + +SORT_BY_SCOPE_NAME = NO + +# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper +# type resolution of all parameters of a function it will reject a match between +# the prototype and the implementation of a member function even if there is +# only one candidate or it is obvious which candidate to choose by doing a +# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still +# accept a match between prototype and implementation in such cases. +# The default value is: NO. + +STRICT_PROTO_MATCHING = NO + +# The GENERATE_TODOLIST tag can be used to enable (YES) or disable (NO) the todo +# list. This list is created by putting \todo commands in the documentation. +# The default value is: YES. + +GENERATE_TODOLIST = NO + +# The GENERATE_TESTLIST tag can be used to enable (YES) or disable (NO) the test +# list. This list is created by putting \test commands in the documentation. +# The default value is: YES. + +GENERATE_TESTLIST = YES + +# The GENERATE_BUGLIST tag can be used to enable (YES) or disable (NO) the bug +# list. This list is created by putting \bug commands in the documentation. +# The default value is: YES. + +GENERATE_BUGLIST = YES + +# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or disable (NO) +# the deprecated list. This list is created by putting \deprecated commands in +# the documentation. +# The default value is: YES. + +GENERATE_DEPRECATEDLIST= YES + +# The ENABLED_SECTIONS tag can be used to enable conditional documentation +# sections, marked by \if ... \endif and \cond +# ... \endcond blocks. + +ENABLED_SECTIONS = + +# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the +# initial value of a variable or macro / define can have for it to appear in the +# documentation. If the initializer consists of more lines than specified here +# it will be hidden. Use a value of 0 to hide initializers completely. The +# appearance of the value of individual variables and macros / defines can be +# controlled using \showinitializer or \hideinitializer command in the +# documentation regardless of this setting. +# Minimum value: 0, maximum value: 10000, default value: 30. + +MAX_INITIALIZER_LINES = 30 + +# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at +# the bottom of the documentation of classes and structs. If set to YES, the +# list will mention the files that were used to generate the documentation. +# The default value is: YES. + +SHOW_USED_FILES = YES + +# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This +# will remove the Files entry from the Quick Index and from the Folder Tree View +# (if specified). +# The default value is: YES. + +SHOW_FILES = YES + +# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces +# page. This will remove the Namespaces entry from the Quick Index and from the +# Folder Tree View (if specified). +# The default value is: YES. + +SHOW_NAMESPACES = YES + +# The FILE_VERSION_FILTER tag can be used to specify a program or script that +# doxygen should invoke to get the current version for each file (typically from +# the version control system). Doxygen will invoke the program by executing (via +# popen()) the command command input-file, where command is the value of the +# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided +# by doxygen. Whatever the program writes to standard output is used as the file +# version. For an example see the documentation. + +FILE_VERSION_FILTER = + +# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed +# by doxygen. The layout file controls the global structure of the generated +# output files in an output format independent way. To create the layout file +# that represents doxygen's defaults, run doxygen with the -l option. You can +# optionally specify a file name after the option, if omitted DoxygenLayout.xml +# will be used as the name of the layout file. +# +# Note that if you run doxygen from a directory containing a file called +# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE +# tag is left empty. + +LAYOUT_FILE = + +# The CITE_BIB_FILES tag can be used to specify one or more bib files containing +# the reference definitions. This must be a list of .bib files. The .bib +# extension is automatically appended if omitted. This requires the bibtex tool +# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info. +# For LaTeX the style of the bibliography can be controlled using +# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the +# search path. See also \cite for info how to create references. + +CITE_BIB_FILES = + +#--------------------------------------------------------------------------- +# Configuration options related to warning and progress messages +#--------------------------------------------------------------------------- + +# The QUIET tag can be used to turn on/off the messages that are generated to +# standard output by doxygen. If QUIET is set to YES this implies that the +# messages are off. +# The default value is: NO. + +QUIET = NO + +# The WARNINGS tag can be used to turn on/off the warning messages that are +# generated to standard error (stderr) by doxygen. If WARNINGS is set to YES +# this implies that the warnings are on. +# +# Tip: Turn warnings on while writing the documentation. +# The default value is: YES. + +WARNINGS = YES + +# If the WARN_IF_UNDOCUMENTED tag is set to YES then doxygen will generate +# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag +# will automatically be disabled. +# The default value is: YES. + +WARN_IF_UNDOCUMENTED = YES + +# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for +# potential errors in the documentation, such as not documenting some parameters +# in a documented function, or documenting parameters that don't exist or using +# markup commands wrongly. +# The default value is: YES. + +WARN_IF_DOC_ERROR = YES + +# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that +# are documented, but have no documentation for their parameters or return +# value. If set to NO, doxygen will only warn about wrong or incomplete +# parameter documentation, but not about the absence of documentation. +# The default value is: NO. + +WARN_NO_PARAMDOC = NO + +# If the WARN_AS_ERROR tag is set to YES then doxygen will immediately stop when +# a warning is encountered. +# The default value is: NO. + +WARN_AS_ERROR = YES + +# The WARN_FORMAT tag determines the format of the warning messages that doxygen +# can produce. The string should contain the $file, $line, and $text tags, which +# will be replaced by the file and line number from which the warning originated +# and the warning text. Optionally the format may contain $version, which will +# be replaced by the version of the file (if it could be obtained via +# FILE_VERSION_FILTER) +# The default value is: $file:$line: $text. + +WARN_FORMAT = "$file:$line: $text " + +# The WARN_LOGFILE tag can be used to specify a file to which warning and error +# messages should be written. If left blank the output is written to standard +# error (stderr). + +WARN_LOGFILE = + +#--------------------------------------------------------------------------- +# Configuration options related to the input files +#--------------------------------------------------------------------------- + +# The INPUT tag is used to specify the files and/or directories that contain +# documented source files. You may enter file names like myfile.cpp or +# directories like /usr/src/myproject. Separate the files or directories with +# spaces. See also FILE_PATTERNS and EXTENSION_MAPPING +# Note: If this tag is empty the current directory is searched. + +INPUT = main_page.h \ + ../../src + +# This tag can be used to specify the character encoding of the source files +# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses +# libiconv (or the iconv built into libc) for the transcoding. See the libiconv +# documentation (see: http://www.gnu.org/software/libiconv) for the list of +# possible encodings. +# The default value is: UTF-8. + +INPUT_ENCODING = UTF-8 + +# If the value of the INPUT tag contains directories, you can use the +# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and +# *.h) to filter out the source-files in the directories. +# +# Note that for custom extensions or not directly supported extensions you also +# need to set EXTENSION_MAPPING for the extension otherwise the files are not +# read by doxygen. +# +# If left blank the following patterns are tested:*.c, *.cc, *.cxx, *.cpp, +# *.c++, *.java, *.ii, *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, +# *.hh, *.hxx, *.hpp, *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, +# *.m, *.markdown, *.md, *.mm, *.dox, *.py, *.pyw, *.f90, *.f95, *.f03, *.f08, +# *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf and *.qsf. + +FILE_PATTERNS = *.c \ + *.cc \ + *.cxx \ + *.cpp \ + *.c++ \ + *.java \ + *.ii \ + *.ixx \ + *.ipp \ + *.i++ \ + *.inl \ + *.h \ + *.hh \ + *.hxx \ + *.hpp \ + *.h++ \ + *.idl \ + *.odl \ + *.inc \ + *.m \ + *.mm \ + *.dox + +# The RECURSIVE tag can be used to specify whether or not subdirectories should +# be searched for input files as well. +# The default value is: NO. + +RECURSIVE = YES + +# The EXCLUDE tag can be used to specify files and/or directories that should be +# excluded from the INPUT source files. This way you can easily exclude a +# subdirectory from a directory tree whose root is specified with the INPUT tag. +# +# Note that relative paths are relative to the directory from which doxygen is +# run. + +EXCLUDE = ../../src/include/netif/ppp/polarssl + +# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or +# directories that are symbolic links (a Unix file system feature) are excluded +# from the input. +# The default value is: NO. + +EXCLUDE_SYMLINKS = NO + +# If the value of the INPUT tag contains directories, you can use the +# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude +# certain files from those directories. +# +# Note that the wildcards are matched against the file with absolute path, so to +# exclude all test directories for example use the pattern */test/* + +EXCLUDE_PATTERNS = + +# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names +# (namespaces, classes, functions, etc.) that should be excluded from the +# output. The symbol name can be a fully qualified name, a word, or if the +# wildcard * is used, a substring. Examples: ANamespace, AClass, +# AClass::ANamespace, ANamespace::*Test +# +# Note that the wildcards are matched against the file with absolute path, so to +# exclude all test directories use the pattern */test/* + +EXCLUDE_SYMBOLS = + +# The EXAMPLE_PATH tag can be used to specify one or more files or directories +# that contain example code fragments that are included (see the \include +# command). + +EXAMPLE_PATH = ../ \ + ../../ + +# If the value of the EXAMPLE_PATH tag contains directories, you can use the +# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and +# *.h) to filter out the source-files in the directories. If left blank all +# files are included. + +EXAMPLE_PATTERNS = * + +# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be +# searched for input files to be used with the \include or \dontinclude commands +# irrespective of the value of the RECURSIVE tag. +# The default value is: NO. + +EXAMPLE_RECURSIVE = NO + +# The IMAGE_PATH tag can be used to specify one or more files or directories +# that contain images that are to be included in the documentation (see the +# \image command). + +IMAGE_PATH = + +# The INPUT_FILTER tag can be used to specify a program that doxygen should +# invoke to filter for each input file. Doxygen will invoke the filter program +# by executing (via popen()) the command: +# +# +# +# where is the value of the INPUT_FILTER tag, and is the +# name of an input file. Doxygen will then use the output that the filter +# program writes to standard output. If FILTER_PATTERNS is specified, this tag +# will be ignored. +# +# Note that the filter must not add or remove lines; it is applied before the +# code is scanned, but not when the output code is generated. If lines are added +# or removed, the anchors will not be placed correctly. +# +# Note that for custom extensions or not directly supported extensions you also +# need to set EXTENSION_MAPPING for the extension otherwise the files are not +# properly processed by doxygen. + +INPUT_FILTER = + +# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern +# basis. Doxygen will compare the file name with each pattern and apply the +# filter if there is a match. The filters are a list of the form: pattern=filter +# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how +# filters are used. If the FILTER_PATTERNS tag is empty or if none of the +# patterns match the file name, INPUT_FILTER is applied. +# +# Note that for custom extensions or not directly supported extensions you also +# need to set EXTENSION_MAPPING for the extension otherwise the files are not +# properly processed by doxygen. + +FILTER_PATTERNS = + +# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using +# INPUT_FILTER) will also be used to filter the input files that are used for +# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES). +# The default value is: NO. + +FILTER_SOURCE_FILES = NO + +# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file +# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and +# it is also possible to disable source filtering for a specific pattern using +# *.ext= (so without naming a filter). +# This tag requires that the tag FILTER_SOURCE_FILES is set to YES. + +FILTER_SOURCE_PATTERNS = + +# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that +# is part of the input, its contents will be placed on the main page +# (index.html). This can be useful if you have a project on for instance GitHub +# and want to reuse the introduction page also for the doxygen output. + +USE_MDFILE_AS_MAINPAGE = main_page.h + +#--------------------------------------------------------------------------- +# Configuration options related to source browsing +#--------------------------------------------------------------------------- + +# If the SOURCE_BROWSER tag is set to YES then a list of source files will be +# generated. Documented entities will be cross-referenced with these sources. +# +# Note: To get rid of all source code in the generated output, make sure that +# also VERBATIM_HEADERS is set to NO. +# The default value is: NO. + +SOURCE_BROWSER = NO + +# Setting the INLINE_SOURCES tag to YES will include the body of functions, +# classes and enums directly into the documentation. +# The default value is: NO. + +INLINE_SOURCES = NO + +# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any +# special comment blocks from generated source code fragments. Normal C, C++ and +# Fortran comments will always remain visible. +# The default value is: YES. + +STRIP_CODE_COMMENTS = YES + +# If the REFERENCED_BY_RELATION tag is set to YES then for each documented +# function all documented functions referencing it will be listed. +# The default value is: NO. + +REFERENCED_BY_RELATION = NO + +# If the REFERENCES_RELATION tag is set to YES then for each documented function +# all documented entities called/used by that function will be listed. +# The default value is: NO. + +REFERENCES_RELATION = NO + +# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set +# to YES then the hyperlinks from functions in REFERENCES_RELATION and +# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will +# link to the documentation. +# The default value is: YES. + +REFERENCES_LINK_SOURCE = YES + +# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the +# source code will show a tooltip with additional information such as prototype, +# brief description and links to the definition and documentation. Since this +# will make the HTML file larger and loading of large files a bit slower, you +# can opt to disable this feature. +# The default value is: YES. +# This tag requires that the tag SOURCE_BROWSER is set to YES. + +SOURCE_TOOLTIPS = YES + +# If the USE_HTAGS tag is set to YES then the references to source code will +# point to the HTML generated by the htags(1) tool instead of doxygen built-in +# source browser. The htags tool is part of GNU's global source tagging system +# (see http://www.gnu.org/software/global/global.html). You will need version +# 4.8.6 or higher. +# +# To use it do the following: +# - Install the latest version of global +# - Enable SOURCE_BROWSER and USE_HTAGS in the config file +# - Make sure the INPUT points to the root of the source tree +# - Run doxygen as normal +# +# Doxygen will invoke htags (and that will in turn invoke gtags), so these +# tools must be available from the command line (i.e. in the search path). +# +# The result: instead of the source browser generated by doxygen, the links to +# source code will now point to the output of htags. +# The default value is: NO. +# This tag requires that the tag SOURCE_BROWSER is set to YES. + +USE_HTAGS = NO + +# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a +# verbatim copy of the header file for each class for which an include is +# specified. Set to NO to disable this. +# See also: Section \class. +# The default value is: YES. + +VERBATIM_HEADERS = NO + +# If the CLANG_ASSISTED_PARSING tag is set to YES then doxygen will use the +# clang parser (see: http://clang.llvm.org/) for more accurate parsing at the +# cost of reduced performance. This can be particularly helpful with template +# rich C++ code for which doxygen's built-in parser lacks the necessary type +# information. +# Note: The availability of this option depends on whether or not doxygen was +# generated with the -Duse-libclang=ON option for CMake. +# The default value is: NO. + +CLANG_ASSISTED_PARSING = NO + +# If clang assisted parsing is enabled you can provide the compiler with command +# line options that you would normally use when invoking the compiler. Note that +# the include paths will already be set by doxygen for the files and directories +# specified with INPUT and INCLUDE_PATH. +# This tag requires that the tag CLANG_ASSISTED_PARSING is set to YES. + +CLANG_OPTIONS = + +#--------------------------------------------------------------------------- +# Configuration options related to the alphabetical class index +#--------------------------------------------------------------------------- + +# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all +# compounds will be generated. Enable this if the project contains a lot of +# classes, structs, unions or interfaces. +# The default value is: YES. + +ALPHABETICAL_INDEX = NO + +# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in +# which the alphabetical index list will be split. +# Minimum value: 1, maximum value: 20, default value: 5. +# This tag requires that the tag ALPHABETICAL_INDEX is set to YES. + +COLS_IN_ALPHA_INDEX = 5 + +# In case all classes in a project start with a common prefix, all classes will +# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag +# can be used to specify a prefix (or a list of prefixes) that should be ignored +# while generating the index headers. +# This tag requires that the tag ALPHABETICAL_INDEX is set to YES. + +IGNORE_PREFIX = + +#--------------------------------------------------------------------------- +# Configuration options related to the HTML output +#--------------------------------------------------------------------------- + +# If the GENERATE_HTML tag is set to YES, doxygen will generate HTML output +# The default value is: YES. + +GENERATE_HTML = YES + +# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a +# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of +# it. +# The default directory is: html. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_OUTPUT = html + +# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each +# generated HTML page (for example: .htm, .php, .asp). +# The default value is: .html. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_FILE_EXTENSION = .html + +# The HTML_HEADER tag can be used to specify a user-defined HTML header file for +# each generated HTML page. If the tag is left blank doxygen will generate a +# standard header. +# +# To get valid HTML the header file that includes any scripts and style sheets +# that doxygen needs, which is dependent on the configuration options used (e.g. +# the setting GENERATE_TREEVIEW). It is highly recommended to start with a +# default header using +# doxygen -w html new_header.html new_footer.html new_stylesheet.css +# YourConfigFile +# and then modify the file new_header.html. See also section "Doxygen usage" +# for information on how to generate the default header that doxygen normally +# uses. +# Note: The header is subject to change so you typically have to regenerate the +# default header when upgrading to a newer version of doxygen. For a description +# of the possible markers and block names see the documentation. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_HEADER = + +# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each +# generated HTML page. If the tag is left blank doxygen will generate a standard +# footer. See HTML_HEADER for more information on how to generate a default +# footer and what special commands can be used inside the footer. See also +# section "Doxygen usage" for information on how to generate the default footer +# that doxygen normally uses. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_FOOTER = + +# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style +# sheet that is used by each HTML page. It can be used to fine-tune the look of +# the HTML output. If left blank doxygen will generate a default style sheet. +# See also section "Doxygen usage" for information on how to generate the style +# sheet that doxygen normally uses. +# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as +# it is more robust and this tag (HTML_STYLESHEET) will in the future become +# obsolete. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_STYLESHEET = + +# The HTML_EXTRA_STYLESHEET tag can be used to specify additional user-defined +# cascading style sheets that are included after the standard style sheets +# created by doxygen. Using this option one can overrule certain style aspects. +# This is preferred over using HTML_STYLESHEET since it does not replace the +# standard style sheet and is therefore more robust against future updates. +# Doxygen will copy the style sheet files to the output directory. +# Note: The order of the extra style sheet files is of importance (e.g. the last +# style sheet in the list overrules the setting of the previous ones in the +# list). For an example see the documentation. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_EXTRA_STYLESHEET = + +# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or +# other source files which should be copied to the HTML output directory. Note +# that these files will be copied to the base HTML output directory. Use the +# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these +# files. In the HTML_STYLESHEET file, use the file name only. Also note that the +# files will be copied as-is; there are no commands or markers available. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_EXTRA_FILES = + +# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen +# will adjust the colors in the style sheet and background images according to +# this color. Hue is specified as an angle on a colorwheel, see +# http://en.wikipedia.org/wiki/Hue for more information. For instance the value +# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300 +# purple, and 360 is red again. +# Minimum value: 0, maximum value: 359, default value: 220. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_COLORSTYLE_HUE = 220 + +# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors +# in the HTML output. For a value of 0 the output will use grayscales only. A +# value of 255 will produce the most vivid colors. +# Minimum value: 0, maximum value: 255, default value: 100. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_COLORSTYLE_SAT = 100 + +# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the +# luminance component of the colors in the HTML output. Values below 100 +# gradually make the output lighter, whereas values above 100 make the output +# darker. The value divided by 100 is the actual gamma applied, so 80 represents +# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not +# change the gamma. +# Minimum value: 40, maximum value: 240, default value: 80. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_COLORSTYLE_GAMMA = 80 + +# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML +# page will contain the date and time when the page was generated. Setting this +# to YES can help to show when doxygen was last run and thus if the +# documentation is up to date. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_TIMESTAMP = NO + +# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML +# documentation will contain sections that can be hidden and shown after the +# page has loaded. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_DYNAMIC_SECTIONS = NO + +# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries +# shown in the various tree structured indices initially; the user can expand +# and collapse entries dynamically later on. Doxygen will expand the tree to +# such a level that at most the specified number of entries are visible (unless +# a fully collapsed tree already exceeds this amount). So setting the number of +# entries 1 will produce a full collapsed tree by default. 0 is a special value +# representing an infinite number of entries and will result in a full expanded +# tree by default. +# Minimum value: 0, maximum value: 9999, default value: 100. +# This tag requires that the tag GENERATE_HTML is set to YES. + +HTML_INDEX_NUM_ENTRIES = 100 + +# If the GENERATE_DOCSET tag is set to YES, additional index files will be +# generated that can be used as input for Apple's Xcode 3 integrated development +# environment (see: http://developer.apple.com/tools/xcode/), introduced with +# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a +# Makefile in the HTML output directory. Running make will produce the docset in +# that directory and running make install will install the docset in +# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at +# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html +# for more information. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTML is set to YES. + +GENERATE_DOCSET = NO + +# This tag determines the name of the docset feed. A documentation feed provides +# an umbrella under which multiple documentation sets from a single provider +# (such as a company or product suite) can be grouped. +# The default value is: Doxygen generated docs. +# This tag requires that the tag GENERATE_DOCSET is set to YES. + +DOCSET_FEEDNAME = "Doxygen generated docs" + +# This tag specifies a string that should uniquely identify the documentation +# set bundle. This should be a reverse domain-name style string, e.g. +# com.mycompany.MyDocSet. Doxygen will append .docset to the name. +# The default value is: org.doxygen.Project. +# This tag requires that the tag GENERATE_DOCSET is set to YES. + +DOCSET_BUNDLE_ID = org.doxygen.Project + +# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify +# the documentation publisher. This should be a reverse domain-name style +# string, e.g. com.mycompany.MyDocSet.documentation. +# The default value is: org.doxygen.Publisher. +# This tag requires that the tag GENERATE_DOCSET is set to YES. + +DOCSET_PUBLISHER_ID = org.doxygen.Publisher + +# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher. +# The default value is: Publisher. +# This tag requires that the tag GENERATE_DOCSET is set to YES. + +DOCSET_PUBLISHER_NAME = Publisher + +# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three +# additional HTML index files: index.hhp, index.hhc, and index.hhk. The +# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop +# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on +# Windows. +# +# The HTML Help Workshop contains a compiler that can convert all HTML output +# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML +# files are now used as the Windows 98 help format, and will replace the old +# Windows help format (.hlp) on all Windows platforms in the future. Compressed +# HTML files also contain an index, a table of contents, and you can search for +# words in the documentation. The HTML workshop also contains a viewer for +# compressed HTML files. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTML is set to YES. + +GENERATE_HTMLHELP = NO + +# The CHM_FILE tag can be used to specify the file name of the resulting .chm +# file. You can add a path in front of the file if the result should not be +# written to the html output directory. +# This tag requires that the tag GENERATE_HTMLHELP is set to YES. + +CHM_FILE = lwip.chm + +# The HHC_LOCATION tag can be used to specify the location (absolute path +# including file name) of the HTML help compiler (hhc.exe). If non-empty, +# doxygen will try to run the HTML help compiler on the generated index.hhp. +# The file has to be specified with full path. +# This tag requires that the tag GENERATE_HTMLHELP is set to YES. + +HHC_LOCATION = + +# The GENERATE_CHI flag controls if a separate .chi index file is generated +# (YES) or that it should be included in the master .chm file (NO). +# The default value is: NO. +# This tag requires that the tag GENERATE_HTMLHELP is set to YES. + +GENERATE_CHI = NO + +# The CHM_INDEX_ENCODING is used to encode HtmlHelp index (hhk), content (hhc) +# and project file content. +# This tag requires that the tag GENERATE_HTMLHELP is set to YES. + +CHM_INDEX_ENCODING = + +# The BINARY_TOC flag controls whether a binary table of contents is generated +# (YES) or a normal table of contents (NO) in the .chm file. Furthermore it +# enables the Previous and Next buttons. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTMLHELP is set to YES. + +BINARY_TOC = NO + +# The TOC_EXPAND flag can be set to YES to add extra items for group members to +# the table of contents of the HTML help documentation and to the tree view. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTMLHELP is set to YES. + +TOC_EXPAND = NO + +# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and +# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that +# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help +# (.qch) of the generated HTML documentation. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTML is set to YES. + +GENERATE_QHP = NO + +# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify +# the file name of the resulting .qch file. The path specified is relative to +# the HTML output folder. +# This tag requires that the tag GENERATE_QHP is set to YES. + +QCH_FILE = + +# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help +# Project output. For more information please see Qt Help Project / Namespace +# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace). +# The default value is: org.doxygen.Project. +# This tag requires that the tag GENERATE_QHP is set to YES. + +QHP_NAMESPACE = org.doxygen.Project + +# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt +# Help Project output. For more information please see Qt Help Project / Virtual +# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual- +# folders). +# The default value is: doc. +# This tag requires that the tag GENERATE_QHP is set to YES. + +QHP_VIRTUAL_FOLDER = doc + +# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom +# filter to add. For more information please see Qt Help Project / Custom +# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom- +# filters). +# This tag requires that the tag GENERATE_QHP is set to YES. + +QHP_CUST_FILTER_NAME = + +# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the +# custom filter to add. For more information please see Qt Help Project / Custom +# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom- +# filters). +# This tag requires that the tag GENERATE_QHP is set to YES. + +QHP_CUST_FILTER_ATTRS = + +# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this +# project's filter section matches. Qt Help Project / Filter Attributes (see: +# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes). +# This tag requires that the tag GENERATE_QHP is set to YES. + +QHP_SECT_FILTER_ATTRS = + +# The QHG_LOCATION tag can be used to specify the location of Qt's +# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the +# generated .qhp file. +# This tag requires that the tag GENERATE_QHP is set to YES. + +QHG_LOCATION = + +# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be +# generated, together with the HTML files, they form an Eclipse help plugin. To +# install this plugin and make it available under the help contents menu in +# Eclipse, the contents of the directory containing the HTML and XML files needs +# to be copied into the plugins directory of eclipse. The name of the directory +# within the plugins directory should be the same as the ECLIPSE_DOC_ID value. +# After copying Eclipse needs to be restarted before the help appears. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTML is set to YES. + +GENERATE_ECLIPSEHELP = NO + +# A unique identifier for the Eclipse help plugin. When installing the plugin +# the directory name containing the HTML and XML files should also have this +# name. Each documentation set should have its own identifier. +# The default value is: org.doxygen.Project. +# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES. + +ECLIPSE_DOC_ID = org.doxygen.Project + +# If you want full control over the layout of the generated HTML pages it might +# be necessary to disable the index and replace it with your own. The +# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top +# of each HTML page. A value of NO enables the index and the value YES disables +# it. Since the tabs in the index contain the same information as the navigation +# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTML is set to YES. + +DISABLE_INDEX = NO + +# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index +# structure should be generated to display hierarchical information. If the tag +# value is set to YES, a side panel will be generated containing a tree-like +# index structure (just like the one that is generated for HTML Help). For this +# to work a browser that supports JavaScript, DHTML, CSS and frames is required +# (i.e. any modern browser). Windows users are probably better off using the +# HTML help feature. Via custom style sheets (see HTML_EXTRA_STYLESHEET) one can +# further fine-tune the look of the index. As an example, the default style +# sheet generated by doxygen has an example that shows how to put an image at +# the root of the tree instead of the PROJECT_NAME. Since the tree basically has +# the same information as the tab index, you could consider setting +# DISABLE_INDEX to YES when enabling this option. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTML is set to YES. + +GENERATE_TREEVIEW = YES + +# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that +# doxygen will group on one line in the generated HTML documentation. +# +# Note that a value of 0 will completely suppress the enum values from appearing +# in the overview section. +# Minimum value: 0, maximum value: 20, default value: 4. +# This tag requires that the tag GENERATE_HTML is set to YES. + +ENUM_VALUES_PER_LINE = 4 + +# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used +# to set the initial width (in pixels) of the frame in which the tree is shown. +# Minimum value: 0, maximum value: 1500, default value: 250. +# This tag requires that the tag GENERATE_HTML is set to YES. + +TREEVIEW_WIDTH = 250 + +# If the EXT_LINKS_IN_WINDOW option is set to YES, doxygen will open links to +# external symbols imported via tag files in a separate window. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTML is set to YES. + +EXT_LINKS_IN_WINDOW = NO + +# Use this tag to change the font size of LaTeX formulas included as images in +# the HTML documentation. When you change the font size after a successful +# doxygen run you need to manually remove any form_*.png images from the HTML +# output directory to force them to be regenerated. +# Minimum value: 8, maximum value: 50, default value: 10. +# This tag requires that the tag GENERATE_HTML is set to YES. + +FORMULA_FONTSIZE = 10 + +# Use the FORMULA_TRANPARENT tag to determine whether or not the images +# generated for formulas are transparent PNGs. Transparent PNGs are not +# supported properly for IE 6.0, but are supported on all modern browsers. +# +# Note that when changing this option you need to delete any form_*.png files in +# the HTML output directory before the changes have effect. +# The default value is: YES. +# This tag requires that the tag GENERATE_HTML is set to YES. + +FORMULA_TRANSPARENT = YES + +# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see +# http://www.mathjax.org) which uses client side Javascript for the rendering +# instead of using pre-rendered bitmaps. Use this if you do not have LaTeX +# installed or if you want to formulas look prettier in the HTML output. When +# enabled you may also need to install MathJax separately and configure the path +# to it using the MATHJAX_RELPATH option. +# The default value is: NO. +# This tag requires that the tag GENERATE_HTML is set to YES. + +USE_MATHJAX = NO + +# When MathJax is enabled you can set the default output format to be used for +# the MathJax output. See the MathJax site (see: +# http://docs.mathjax.org/en/latest/output.html) for more details. +# Possible values are: HTML-CSS (which is slower, but has the best +# compatibility), NativeMML (i.e. MathML) and SVG. +# The default value is: HTML-CSS. +# This tag requires that the tag USE_MATHJAX is set to YES. + +MATHJAX_FORMAT = HTML-CSS + +# When MathJax is enabled you need to specify the location relative to the HTML +# output directory using the MATHJAX_RELPATH option. The destination directory +# should contain the MathJax.js script. For instance, if the mathjax directory +# is located at the same level as the HTML output directory, then +# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax +# Content Delivery Network so you can quickly see the result without installing +# MathJax. However, it is strongly recommended to install a local copy of +# MathJax from http://www.mathjax.org before deployment. +# The default value is: http://cdn.mathjax.org/mathjax/latest. +# This tag requires that the tag USE_MATHJAX is set to YES. + +MATHJAX_RELPATH = http://cdn.mathjax.org/mathjax/latest + +# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax +# extension names that should be enabled during MathJax rendering. For example +# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols +# This tag requires that the tag USE_MATHJAX is set to YES. + +MATHJAX_EXTENSIONS = + +# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces +# of code that will be used on startup of the MathJax code. See the MathJax site +# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an +# example see the documentation. +# This tag requires that the tag USE_MATHJAX is set to YES. + +MATHJAX_CODEFILE = + +# When the SEARCHENGINE tag is enabled doxygen will generate a search box for +# the HTML output. The underlying search engine uses javascript and DHTML and +# should work on any modern browser. Note that when using HTML help +# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET) +# there is already a search function so this one should typically be disabled. +# For large projects the javascript based search engine can be slow, then +# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to +# search using the keyboard; to jump to the search box use + S +# (what the is depends on the OS and browser, but it is typically +# , /

404: The requested file cannot be found.

\r\n" +#if LWIP_HTTPD_SUPPORT_11_KEEPALIVE + , "Connection: keep-alive\r\nContent-Length: 77\r\n\r\n

404: The requested file cannot be found.

\r\n" +#endif +}; + +/* Indexes into the g_psHTTPHeaderStrings array */ +#define HTTP_HDR_OK 0 /* 200 OK */ +#define HTTP_HDR_NOT_FOUND 1 /* 404 File not found */ +#define HTTP_HDR_BAD_REQUEST 2 /* 400 Bad request */ +#define HTTP_HDR_NOT_IMPL 3 /* 501 Not Implemented */ +#define HTTP_HDR_OK_11 4 /* 200 OK */ +#define HTTP_HDR_NOT_FOUND_11 5 /* 404 File not found */ +#define HTTP_HDR_BAD_REQUEST_11 6 /* 400 Bad request */ +#define HTTP_HDR_NOT_IMPL_11 7 /* 501 Not Implemented */ +#define HTTP_HDR_CONTENT_LENGTH 8 /* Content-Length: (HTTP 1.0)*/ +#define HTTP_HDR_CONN_CLOSE 9 /* Connection: Close (HTTP 1.1) */ +#define HTTP_HDR_CONN_KEEPALIVE 10 /* Connection: keep-alive (HTTP 1.1) */ +#define HTTP_HDR_KEEPALIVE_LEN 11 /* Connection: keep-alive + Content-Length: (HTTP 1.1)*/ +#define HTTP_HDR_SERVER 12 /* Server: HTTPD_SERVER_AGENT */ +#define DEFAULT_404_HTML 13 /* default 404 body */ +#if LWIP_HTTPD_SUPPORT_11_KEEPALIVE +#define DEFAULT_404_HTML_PERSISTENT 14 /* default 404 body, but including Connection: keep-alive */ +#endif + +#define HTTP_CONTENT_TYPE(contenttype) "Content-Type: "contenttype"\r\n\r\n" +#define HTTP_CONTENT_TYPE_ENCODING(contenttype, encoding) "Content-Type: "contenttype"\r\nContent-Encoding: "encoding"\r\n\r\n" + +#define HTTP_HDR_HTML HTTP_CONTENT_TYPE("text/html") +#define HTTP_HDR_SSI HTTP_CONTENT_TYPE("text/html\r\nExpires: Fri, 10 Apr 2008 14:00:00 GMT\r\nPragma: no-cache") +#define HTTP_HDR_GIF HTTP_CONTENT_TYPE("image/gif") +#define HTTP_HDR_PNG HTTP_CONTENT_TYPE("image/png") +#define HTTP_HDR_JPG HTTP_CONTENT_TYPE("image/jpeg") +#define HTTP_HDR_BMP HTTP_CONTENT_TYPE("image/bmp") +#define HTTP_HDR_ICO HTTP_CONTENT_TYPE("image/x-icon") +#define HTTP_HDR_APP HTTP_CONTENT_TYPE("application/octet-stream") +#define HTTP_HDR_JS HTTP_CONTENT_TYPE("application/javascript") +#define HTTP_HDR_RA HTTP_CONTENT_TYPE("application/javascript") +#define HTTP_HDR_CSS HTTP_CONTENT_TYPE("text/css") +#define HTTP_HDR_SWF HTTP_CONTENT_TYPE("application/x-shockwave-flash") +#define HTTP_HDR_XML HTTP_CONTENT_TYPE("text/xml") +#define HTTP_HDR_PDF HTTP_CONTENT_TYPE("application/pdf") +#define HTTP_HDR_JSON HTTP_CONTENT_TYPE("application/json") +#define HTTP_HDR_CSV HTTP_CONTENT_TYPE("text/csv") +#define HTTP_HDR_TSV HTTP_CONTENT_TYPE("text/tsv") +#define HTTP_HDR_SVG HTTP_CONTENT_TYPE("image/svg+xml") +#define HTTP_HDR_SVGZ HTTP_CONTENT_TYPE_ENCODING("image/svg+xml", "gzip") + +#define HTTP_HDR_DEFAULT_TYPE HTTP_CONTENT_TYPE("text/plain") + +/** A list of extension-to-HTTP header strings (see outdated RFC 1700 MEDIA TYPES + * and http://www.iana.org/assignments/media-types for registered content types + * and subtypes) */ +static const tHTTPHeader g_psHTTPHeaders[] = { + { "html", HTTP_HDR_HTML}, + { "htm", HTTP_HDR_HTML}, + { "shtml", HTTP_HDR_SSI}, + { "shtm", HTTP_HDR_SSI}, + { "ssi", HTTP_HDR_SSI}, + { "gif", HTTP_HDR_GIF}, + { "png", HTTP_HDR_PNG}, + { "jpg", HTTP_HDR_JPG}, + { "bmp", HTTP_HDR_BMP}, + { "ico", HTTP_HDR_ICO}, + { "class", HTTP_HDR_APP}, + { "cls", HTTP_HDR_APP}, + { "js", HTTP_HDR_JS}, + { "ram", HTTP_HDR_RA}, + { "css", HTTP_HDR_CSS}, + { "swf", HTTP_HDR_SWF}, + { "xml", HTTP_HDR_XML}, + { "xsl", HTTP_HDR_XML}, + { "pdf", HTTP_HDR_PDF}, + { "json", HTTP_HDR_JSON} +#ifdef HTTPD_ADDITIONAL_CONTENT_TYPES + /* If you need to add content types not listed here: + * #define HTTPD_ADDITIONAL_CONTENT_TYPES {"ct1", HTTP_CONTENT_TYPE("text/ct1")}, {"exe", HTTP_CONTENT_TYPE("application/exe")} + */ + , HTTPD_ADDITIONAL_CONTENT_TYPES +#endif +}; + +#define NUM_HTTP_HEADERS LWIP_ARRAYSIZE(g_psHTTPHeaders) + +#endif /* LWIP_HTTPD_DYNAMIC_HEADERS */ + +#if LWIP_HTTPD_SSI && LWIP_HTTPD_SSI_BY_FILE_EXTENSION +static const char *const g_pcSSIExtensions[] = { + LWIP_HTTPD_SSI_EXTENSIONS +}; +#define NUM_SHTML_EXTENSIONS LWIP_ARRAYSIZE(g_pcSSIExtensions) +#endif /* LWIP_HTTPD_SSI && LWIP_HTTPD_SSI_BY_FILE_EXTENSION */ + +#endif /* LWIP_HTTPD_STRUCTS_H */ diff --git a/middleware/lwip/src/apps/http/makefsdata/makefsdata b/middleware/lwip/src/apps/http/makefsdata/makefsdata new file mode 100644 index 0000000..37b4203 --- /dev/null +++ b/middleware/lwip/src/apps/http/makefsdata/makefsdata @@ -0,0 +1,97 @@ +#!/usr/bin/perl + +open(OUTPUT, "> fsdata.c"); + +chdir("fs"); +open(FILES, "find . -type f |"); + +while($file = ) { + + # Do not include files in CVS directories nor backup files. + if($file =~ /(CVS|~)/) { + next; + } + + chop($file); + + open(HEADER, "> /tmp/header") || die $!; + if($file =~ /404/) { + print(HEADER "HTTP/1.0 404 File not found\r\n"); + } else { + print(HEADER "HTTP/1.0 200 OK\r\n"); + } + print(HEADER "Server: lwIP/pre-0.6 (http://www.sics.se/~adam/lwip/)\r\n"); + if($file =~ /\.html$/) { + print(HEADER "Content-type: text/html\r\n"); + } elsif($file =~ /\.gif$/) { + print(HEADER "Content-type: image/gif\r\n"); + } elsif($file =~ /\.png$/) { + print(HEADER "Content-type: image/png\r\n"); + } elsif($file =~ /\.jpg$/) { + print(HEADER "Content-type: image/jpeg\r\n"); + } elsif($file =~ /\.class$/) { + print(HEADER "Content-type: application/octet-stream\r\n"); + } elsif($file =~ /\.ram$/) { + print(HEADER "Content-type: audio/x-pn-realaudio\r\n"); + } else { + print(HEADER "Content-type: text/plain\r\n"); + } + print(HEADER "\r\n"); + close(HEADER); + + unless($file =~ /\.plain$/ || $file =~ /cgi/) { + system("cat /tmp/header $file > /tmp/file"); + } else { + system("cp $file /tmp/file"); + } + + open(FILE, "/tmp/file"); + unlink("/tmp/file"); + unlink("/tmp/header"); + + $file =~ s/\.//; + $fvar = $file; + $fvar =~ s-/-_-g; + $fvar =~ s-\.-_-g; + print(OUTPUT "static const unsigned char data".$fvar."[] = {\n"); + print(OUTPUT "\t/* $file */\n\t"); + for($j = 0; $j < length($file); $j++) { + printf(OUTPUT "%#02x, ", unpack("C", substr($file, $j, 1))); + } + printf(OUTPUT "0,\n"); + + + $i = 0; + while(read(FILE, $data, 1)) { + if($i == 0) { + print(OUTPUT "\t"); + } + printf(OUTPUT "%#02x, ", unpack("C", $data)); + $i++; + if($i == 10) { + print(OUTPUT "\n"); + $i = 0; + } + } + print(OUTPUT "};\n\n"); + close(FILE); + push(@fvars, $fvar); + push(@files, $file); +} + +for($i = 0; $i < @fvars; $i++) { + $file = $files[$i]; + $fvar = $fvars[$i]; + + if($i == 0) { + $prevfile = "NULL"; + } else { + $prevfile = "file" . $fvars[$i - 1]; + } + print(OUTPUT "const struct fsdata_file file".$fvar."[] = {{$prevfile, data$fvar, "); + print(OUTPUT "data$fvar + ". (length($file) + 1) .", "); + print(OUTPUT "sizeof(data$fvar) - ". (length($file) + 1) ."}};\n\n"); +} + +print(OUTPUT "#define FS_ROOT file$fvars[$i - 1]\n\n"); +print(OUTPUT "#define FS_NUMFILES $i\n"); diff --git a/middleware/lwip/src/apps/http/makefsdata/makefsdata.c b/middleware/lwip/src/apps/http/makefsdata/makefsdata.c new file mode 100644 index 0000000..8d7dcd2 --- /dev/null +++ b/middleware/lwip/src/apps/http/makefsdata/makefsdata.c @@ -0,0 +1,1278 @@ +/** + * makefsdata: Converts a directory structure for use with the lwIP httpd. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Jim Pettinato + * Simon Goldschmidt + * + * @todo: + * - take TCP_MSS, LWIP_TCP_TIMESTAMPS and + * PAYLOAD_ALIGN_TYPE/PAYLOAD_ALIGNMENT as arguments + */ + +#include +#include +#include +#include +#include + +#include "tinydir.h" + +/** Makefsdata can generate *all* files deflate-compressed (where file size shrinks). + * Since nearly all browsers support this, this is a good way to reduce ROM size. + * To compress the files, "miniz.c" must be downloaded separately. + */ +#ifndef MAKEFS_SUPPORT_DEFLATE +#define MAKEFS_SUPPORT_DEFLATE 0 +#endif + +#define COPY_BUFSIZE (1024*1024) /* 1 MByte */ + +#if MAKEFS_SUPPORT_DEFLATE +#include "../miniz.c" + +typedef unsigned char uint8; +typedef unsigned short uint16; +typedef unsigned int uint; + +#define my_max(a,b) (((a) > (b)) ? (a) : (b)) +#define my_min(a,b) (((a) < (b)) ? (a) : (b)) + +/* COMP_OUT_BUF_SIZE is the size of the output buffer used during compression. + COMP_OUT_BUF_SIZE must be >= 1 and <= OUT_BUF_SIZE */ +#define COMP_OUT_BUF_SIZE COPY_BUFSIZE + +/* OUT_BUF_SIZE is the size of the output buffer used during decompression. + OUT_BUF_SIZE must be a power of 2 >= TINFL_LZ_DICT_SIZE (because the low-level decompressor not only writes, but reads from the output buffer as it decompresses) */ +#define OUT_BUF_SIZE COPY_BUFSIZE +static uint8 s_outbuf[OUT_BUF_SIZE]; +static uint8 s_checkbuf[OUT_BUF_SIZE]; + +/* tdefl_compressor contains all the state needed by the low-level compressor so it's a pretty big struct (~300k). + This example makes it a global vs. putting it on the stack, of course in real-world usage you'll probably malloc() or new it. */ +tdefl_compressor g_deflator; + +static int deflate_level; /* default compression level, can be changed via command line */ +#define USAGE_ARG_DEFLATE " [-defl<:compr_level>]" +#else /* MAKEFS_SUPPORT_DEFLATE */ +#define USAGE_ARG_DEFLATE "" +#endif /* MAKEFS_SUPPORT_DEFLATE */ + +#ifdef WIN32 + +#define GETCWD(path, len) GetCurrentDirectoryA(len, path) +#define GETCWD_SUCCEEDED(ret) (ret != 0) +#define CHDIR(path) SetCurrentDirectoryA(path) +#define CHDIR_SUCCEEDED(ret) (ret == TRUE) + +#elif __linux__ + +#define GETCWD(path, len) getcwd(path, len) +#define GETCWD_SUCCEEDED(ret) (ret != NULL) +#define CHDIR(path) chdir(path) +#define CHDIR_SUCCEEDED(ret) (ret == 0) + +#else + +#error makefsdata not supported on this platform + +#endif + +#define NEWLINE "\r\n" +#define NEWLINE_LEN 2 + +/* Define this here since we don't include any external C files and ports might override it */ +#define LWIP_PLATFORM_ASSERT(x) do {printf("Assertion \"%s\" failed at line %d in %s\n", \ + x, __LINE__, __FILE__); fflush(NULL); abort();} while(0) + +/* define this to get the header variables we use to build HTTP headers */ +#define LWIP_HTTPD_DYNAMIC_HEADERS 1 +#define LWIP_HTTPD_SSI 1 +#include "lwip/init.h" +#include "../httpd_structs.h" +#include "lwip/apps/fs.h" + +#include "../core/inet_chksum.c" +#include "../core/def.c" + +/** (Your server name here) */ +const char *serverID = "Server: "HTTPD_SERVER_AGENT"\r\n"; +char serverIDBuffer[1024]; + +/* change this to suit your MEM_ALIGNMENT */ +#define PAYLOAD_ALIGNMENT 4 +/* set this to 0 to prevent aligning payload */ +#define ALIGN_PAYLOAD 1 +/* define this to a type that has the required alignment */ +#define PAYLOAD_ALIGN_TYPE "unsigned int" +static int payload_alingment_dummy_counter = 0; + +#define HEX_BYTES_PER_LINE 16 + +#define MAX_PATH_LEN 256 + +struct file_entry { + struct file_entry *next; + const char *filename_c; +}; + +int process_sub(FILE *data_file, FILE *struct_file); +int process_file(FILE *data_file, FILE *struct_file, const char *filename); +int file_write_http_header(FILE *data_file, const char *filename, int file_size, u16_t *http_hdr_len, + u16_t *http_hdr_chksum, u8_t provide_content_len, int is_compressed); +int file_put_ascii(FILE *file, const char *ascii_string, int len, int *i); +int s_put_ascii(char *buf, const char *ascii_string, int len, int *i); +void concat_files(const char *file1, const char *file2, const char *targetfile); +int check_path(char *path, size_t size); +static int checkSsiByFilelist(const char* filename_listfile); +static int ext_in_list(const char* filename, const char *ext_list); +static int file_to_exclude(const char* filename); +static int file_can_be_compressed(const char* filename); + +/* 5 bytes per char + 3 bytes per line */ +static char file_buffer_c[COPY_BUFSIZE * 5 + ((COPY_BUFSIZE / HEX_BYTES_PER_LINE) * 3)]; + +char curSubdir[MAX_PATH_LEN-3]; +char lastFileVar[MAX_PATH_LEN]; +char hdr_buf[4096]; + +unsigned char processSubs = 1; +unsigned char includeHttpHeader = 1; +unsigned char useHttp11 = 0; +unsigned char supportSsi = 1; +unsigned char precalcChksum = 0; +unsigned char includeLastModified = 0; +#if MAKEFS_SUPPORT_DEFLATE +unsigned char deflateNonSsiFiles = 0; +size_t deflatedBytesReduced = 0; +size_t overallDataBytes = 0; +#endif +const char *exclude_list = NULL; +const char *ncompress_list = NULL; + +struct file_entry *first_file = NULL; +struct file_entry *last_file = NULL; + +static char *ssi_file_buffer; +static char **ssi_file_lines; +static size_t ssi_file_num_lines; + +static void print_usage(void) +{ + printf(" Usage: htmlgen [targetdir] [-s] [-e] [-11] [-nossi] [-ssi:] [-c] [-f:] [-m] [-svr:] [-x:] [-xc:" USAGE_ARG_DEFLATE NEWLINE NEWLINE); + printf(" targetdir: relative or absolute path to files to convert" NEWLINE); + printf(" switch -s: toggle processing of subdirectories (default is on)" NEWLINE); + printf(" switch -e: exclude HTTP header from file (header is created at runtime, default is off)" NEWLINE); + printf(" switch -11: include HTTP 1.1 header (1.0 is default)" NEWLINE); + printf(" switch -nossi: no support for SSI (cannot calculate Content-Length for SSI)" NEWLINE); + printf(" switch -ssi: ssi filename (ssi support controlled by file list, not by extension)" NEWLINE); + printf(" switch -c: precalculate checksums for all pages (default is off)" NEWLINE); + printf(" switch -f: target filename (default is \"fsdata.c\")" NEWLINE); + printf(" switch -m: include \"Last-Modified\" header based on file time" NEWLINE); + printf(" switch -svr: server identifier sent in HTTP response header ('Server' field)" NEWLINE); + printf(" switch -x: comma separated list of extensions of files to exclude (e.g., -x:json,txt)" NEWLINE); + printf(" switch -xc: comma separated list of extensions of files to not compress (e.g., -xc:mp3,jpg)" NEWLINE); +#if MAKEFS_SUPPORT_DEFLATE + printf(" switch -defl: deflate-compress all non-SSI files (with opt. compr.-level, default=10)" NEWLINE); + printf(" ATTENTION: browser has to support \"Content-Encoding: deflate\"!" NEWLINE); +#endif + printf(" if targetdir not specified, htmlgen will attempt to" NEWLINE); + printf(" process files in subdirectory 'fs'" NEWLINE); +} + +int main(int argc, char *argv[]) +{ + char path[MAX_PATH_LEN]; + char appPath[MAX_PATH_LEN]; + FILE *data_file; + FILE *struct_file; + int filesProcessed; + int i; + char targetfile[MAX_PATH_LEN]; + strcpy(targetfile, "fsdata.c"); + + memset(path, 0, sizeof(path)); + memset(appPath, 0, sizeof(appPath)); + + printf(NEWLINE " makefsdata - HTML to C source converter" NEWLINE); + printf(" by Jim Pettinato - circa 2003 " NEWLINE); + printf(" extended by Simon Goldschmidt - 2009 " NEWLINE NEWLINE); + + LWIP_ASSERT("sizeof(hdr_buf) must fit into an u16_t", sizeof(hdr_buf) <= 0xffff); + + strcpy(path, "fs"); + for (i = 1; i < argc; i++) { + if (argv[i] == NULL) { + continue; + } + if (argv[i][0] == '-') { + if (strstr(argv[i], "-svr:") == argv[i]) { + snprintf(serverIDBuffer, sizeof(serverIDBuffer), "Server: %s\r\n", &argv[i][5]); + serverID = serverIDBuffer; + printf("Using Server-ID: \"%s\"\n", serverID); + } else if (!strcmp(argv[i], "-s")) { + processSubs = 0; + } else if (!strcmp(argv[i], "-e")) { + includeHttpHeader = 0; + } else if (!strcmp(argv[i], "-11")) { + useHttp11 = 1; + } else if (!strcmp(argv[i], "-nossi")) { + supportSsi = 0; + } else if (strstr(argv[i], "-ssi:") == argv[i]) { + const char* ssi_list_filename = &argv[i][5]; + if (checkSsiByFilelist(ssi_list_filename)) { + printf("Reading list of SSI files from \"%s\"\n", ssi_list_filename); + } else { + printf("Failed to load list of SSI files from \"%s\"\n", ssi_list_filename); + } + } else if (!strcmp(argv[i], "-c")) { + precalcChksum = 1; + } else if (strstr(argv[i], "-f:") == argv[i]) { + strncpy(targetfile, &argv[i][3], sizeof(targetfile) - 1); + targetfile[sizeof(targetfile) - 1] = 0; + printf("Writing to file \"%s\"\n", targetfile); + } else if (!strcmp(argv[i], "-m")) { + includeLastModified = 1; + } else if (strstr(argv[i], "-defl") == argv[i]) { +#if MAKEFS_SUPPORT_DEFLATE + const char *colon = &argv[i][5]; + if (*colon == ':') { + int defl_level = atoi(&colon[1]); + if ((colon[1] != 0) && (defl_level >= 0) && (defl_level <= 10)) { + deflate_level = defl_level; + } else { + printf("ERROR: deflate level must be [0..10]" NEWLINE); + exit(0); + } + } else { + /* default to highest compression */ + deflate_level = 10; + } + deflateNonSsiFiles = 1; + printf("Deflating all non-SSI files with level %d (but only if size is reduced)" NEWLINE, deflate_level); +#else + printf("WARNING: Deflate support is disabled\n"); +#endif + } else if (strstr(argv[i], "-x:") == argv[i]) { + exclude_list = &argv[i][3]; + printf("Excluding files with extensions %s" NEWLINE, exclude_list); + } else if (strstr(argv[i], "-xc:") == argv[i]) { + ncompress_list = &argv[i][4]; + printf("Skipping compression for files with extensions %s" NEWLINE, ncompress_list); + } else if ((strstr(argv[i], "-?")) || (strstr(argv[i], "-h"))) { + print_usage(); + exit(0); + } + } else if ((argv[i][0] == '/') && (argv[i][1] == '?') && (argv[i][2] == 0)) { + print_usage(); + exit(0); + } else { + strncpy(path, argv[i], sizeof(path) - 1); + path[sizeof(path) - 1] = 0; + } + } + + if (!check_path(path, sizeof(path))) { + printf("Invalid path: \"%s\"." NEWLINE, path); + exit(-1); + } + + if(!GETCWD_SUCCEEDED(GETCWD(appPath, MAX_PATH_LEN))) { + printf("Unable to get current dir." NEWLINE); + exit(-1); + } + /* if command line param or subdir named 'fs' not found spout usage verbiage */ + if (!CHDIR_SUCCEEDED(CHDIR(path))) { + /* if no subdir named 'fs' (or the one which was given) exists, spout usage verbiage */ + printf(" Failed to open directory \"%s\"." NEWLINE NEWLINE, path); + print_usage(); + exit(-1); + } + if(!CHDIR_SUCCEEDED(CHDIR(appPath))) { + printf("Invalid path: \"%s\"." NEWLINE, appPath); + exit(-1); + } + + printf("HTTP %sheader will %s statically included." NEWLINE, + (includeHttpHeader ? (useHttp11 ? "1.1 " : "1.0 ") : ""), + (includeHttpHeader ? "be" : "not be")); + + curSubdir[0] = '\0'; /* start off in web page's root directory - relative paths */ + printf(" Processing all files in directory %s", path); + if (processSubs) { + printf(" and subdirectories..." NEWLINE NEWLINE); + } else { + printf("..." NEWLINE NEWLINE); + } + + data_file = fopen("fsdata.tmp", "wb"); + if (data_file == NULL) { + printf("Failed to create file \"fsdata.tmp\"\n"); + exit(-1); + } + struct_file = fopen("fshdr.tmp", "wb"); + if (struct_file == NULL) { + printf("Failed to create file \"fshdr.tmp\"\n"); + fclose(data_file); + exit(-1); + } + + if(!CHDIR_SUCCEEDED(CHDIR(path))) { + printf("Invalid path: \"%s\"." NEWLINE, path); + exit(-1); + } + + fprintf(data_file, "#include \"lwip/apps/fs.h\"" NEWLINE); + fprintf(data_file, "#include \"lwip/def.h\"" NEWLINE NEWLINE NEWLINE); + + fprintf(data_file, "#define file_NULL (struct fsdata_file *) NULL" NEWLINE NEWLINE NEWLINE); + /* define FS_FILE_FLAGS_HEADER_INCLUDED to 1 if not defined (compatibility with older httpd/fs) */ + fprintf(data_file, "#ifndef FS_FILE_FLAGS_HEADER_INCLUDED" NEWLINE "#define FS_FILE_FLAGS_HEADER_INCLUDED 1" NEWLINE "#endif" NEWLINE); + /* define FS_FILE_FLAGS_HEADER_PERSISTENT to 0 if not defined (compatibility with older httpd/fs: wasn't supported back then) */ + fprintf(data_file, "#ifndef FS_FILE_FLAGS_HEADER_PERSISTENT" NEWLINE "#define FS_FILE_FLAGS_HEADER_PERSISTENT 0" NEWLINE "#endif" NEWLINE); + + /* define alignment defines */ +#if ALIGN_PAYLOAD + fprintf(data_file, "/* FSDATA_FILE_ALIGNMENT: 0=off, 1=by variable, 2=by include */" NEWLINE "#ifndef FSDATA_FILE_ALIGNMENT" NEWLINE "#define FSDATA_FILE_ALIGNMENT 0" NEWLINE "#endif" NEWLINE); +#endif + fprintf(data_file, "#ifndef FSDATA_ALIGN_PRE" NEWLINE "#define FSDATA_ALIGN_PRE" NEWLINE "#endif" NEWLINE); + fprintf(data_file, "#ifndef FSDATA_ALIGN_POST" NEWLINE "#define FSDATA_ALIGN_POST" NEWLINE "#endif" NEWLINE); +#if ALIGN_PAYLOAD + fprintf(data_file, "#if FSDATA_FILE_ALIGNMENT==2" NEWLINE "#include \"fsdata_alignment.h\"" NEWLINE "#endif" NEWLINE); +#endif + + sprintf(lastFileVar, "NULL"); + + filesProcessed = process_sub(data_file, struct_file); + + /* data_file now contains all of the raw data.. now append linked list of + * file header structs to allow embedded app to search for a file name */ + fprintf(data_file, NEWLINE NEWLINE); + fprintf(struct_file, "#define FS_ROOT file_%s" NEWLINE, lastFileVar); + fprintf(struct_file, "#define FS_NUMFILES %d" NEWLINE NEWLINE, filesProcessed); + + fclose(data_file); + fclose(struct_file); + + if(!CHDIR_SUCCEEDED(CHDIR(appPath))) { + printf("Invalid path: \"%s\"." NEWLINE, appPath); + exit(-1); + } + + /* append struct_file to data_file */ + printf(NEWLINE "Creating target file..." NEWLINE NEWLINE); + concat_files("fsdata.tmp", "fshdr.tmp", targetfile); + + /* if succeeded, delete the temporary files */ + if (remove("fsdata.tmp") != 0) { + printf("Warning: failed to delete fsdata.tmp\n"); + } + if (remove("fshdr.tmp") != 0) { + printf("Warning: failed to delete fshdr.tmp\n"); + } + + printf(NEWLINE "Processed %d files - done." NEWLINE, filesProcessed); +#if MAKEFS_SUPPORT_DEFLATE + if (deflateNonSsiFiles) { + printf("(Deflated total byte reduction: %d bytes -> %d bytes (%.02f%%)" NEWLINE, + (int)overallDataBytes, (int)deflatedBytesReduced, (float)((deflatedBytesReduced * 100.0) / overallDataBytes)); + } +#endif + printf(NEWLINE); + + while (first_file != NULL) { + struct file_entry *fe = first_file; + first_file = fe->next; + free(fe); + } + + if (ssi_file_buffer) { + free(ssi_file_buffer); + } + if (ssi_file_lines) { + free(ssi_file_lines); + } + + return 0; +} + +int check_path(char *path, size_t size) +{ + size_t slen; + if (path[0] == 0) { + /* empty */ + return 0; + } + slen = strlen(path); + if (slen >= size) { + /* not NULL-terminated */ + return 0; + } + while ((slen > 0) && ((path[slen] == '\\') || (path[slen] == '/'))) { + /* path should not end with trailing backslash */ + path[slen] = 0; + slen--; + } + if (slen == 0) { + return 0; + } + return 1; +} + +static void copy_file(const char *filename_in, FILE *fout) +{ + FILE *fin; + size_t len; + void *buf; + fin = fopen(filename_in, "rb"); + if (fin == NULL) { + printf("Failed to open file \"%s\"\n", filename_in); + exit(-1); + } + buf = malloc(COPY_BUFSIZE); + while ((len = fread(buf, 1, COPY_BUFSIZE, fin)) > 0) { + fwrite(buf, 1, len, fout); + } + free(buf); + fclose(fin); +} + +void concat_files(const char *file1, const char *file2, const char *targetfile) +{ + FILE *fout; + fout = fopen(targetfile, "wb"); + if (fout == NULL) { + printf("Failed to open file \"%s\"\n", targetfile); + exit(-1); + } + copy_file(file1, fout); + copy_file(file2, fout); + fclose(fout); +} + +int process_sub(FILE *data_file, FILE *struct_file) +{ + tinydir_dir dir; + int filesProcessed = 0; + + if (processSubs) { + /* process subs recursively */ + size_t sublen = strlen(curSubdir); + size_t freelen = sizeof(curSubdir) - sublen - 1; + int ret; + LWIP_ASSERT("sublen < sizeof(curSubdir)", sublen < sizeof(curSubdir)); + + ret = tinydir_open_sorted(&dir, TINYDIR_STRING(".")); + + if (ret == 0) { + unsigned int i; + for (i = 0; i < dir.n_files; i++) { + tinydir_file file; + + ret = tinydir_readfile_n(&dir, &file, i); + + if (ret == 0) { +#if (defined _MSC_VER || defined __MINGW32__) && (defined _UNICODE) + size_t num_char_converted; + char currName[256]; + wcstombs_s(&num_char_converted, currName, sizeof(currName), file.name, sizeof(currName)); +#else + const char *currName = file.name; +#endif + + if (currName[0] == '.') { + continue; + } + if (!file.is_dir) { + continue; + } + if (freelen > 0) { + if(!CHDIR_SUCCEEDED(CHDIR(currName))) { + printf("Invalid path: \"%s\"." NEWLINE, currName); + exit(-1); + } + strncat(curSubdir, "/", freelen); + strncat(curSubdir, currName, freelen - 1); + curSubdir[sizeof(curSubdir) - 1] = 0; + printf("processing subdirectory %s/..." NEWLINE, curSubdir); + filesProcessed += process_sub(data_file, struct_file); + if(!CHDIR_SUCCEEDED(CHDIR(".."))) { + printf("Unable to get back to parent dir of: \"%s\"." NEWLINE, currName); + exit(-1); + } + curSubdir[sublen] = 0; + } else { + printf("WARNING: cannot process sub due to path length restrictions: \"%s/%s\"\n", curSubdir, currName); + } + } + } + } + + ret = tinydir_open_sorted(&dir, TINYDIR_STRING(".")); + if (ret == 0) { + unsigned int i; + for (i = 0; i < dir.n_files; i++) { + tinydir_file file; + + ret = tinydir_readfile_n(&dir, &file, i); + + if (ret == 0) { + if (!file.is_dir) { +#if (defined _MSC_VER || defined __MINGW32__) && (defined _UNICODE) + size_t num_char_converted; + char curName[256]; + wcstombs_s(&num_char_converted, curName, sizeof(curName), file.name, sizeof(curName)); +#else + const char *curName = file.name; +#endif + + if (strcmp(curName, "fsdata.tmp") == 0) { + continue; + } + if (strcmp(curName, "fshdr.tmp") == 0) { + continue; + } + if (file_to_exclude(curName)) { + printf("skipping %s/%s by exclude list (-x option)..." NEWLINE, curSubdir, curName); + continue; + } + + printf("processing %s/%s..." NEWLINE, curSubdir, curName); + + if (process_file(data_file, struct_file, curName) < 0) { + printf(NEWLINE "Error... aborting" NEWLINE); + return -1; + } + filesProcessed++; + } + } + } + } + } + + return filesProcessed; +} + +static u8_t *get_file_data(const char *filename, int *file_size, int can_be_compressed, int *is_compressed) +{ + FILE *inFile; + size_t fsize = 0; + u8_t *buf; + size_t r; + int rs; + LWIP_UNUSED_ARG(r); /* for LWIP_NOASSERT */ + inFile = fopen(filename, "rb"); + if (inFile == NULL) { + printf("Failed to open file \"%s\"\n", filename); + exit(-1); + } + fseek(inFile, 0, SEEK_END); + rs = ftell(inFile); + if (rs < 0) { + printf("ftell failed with %d\n", errno); + exit(-1); + } + fsize = (size_t)rs; + fseek(inFile, 0, SEEK_SET); + buf = (u8_t *)malloc(fsize); + LWIP_ASSERT("buf != NULL", buf != NULL); + r = fread(buf, 1, fsize, inFile); + LWIP_ASSERT("r == fsize", r == fsize); + *file_size = fsize; + *is_compressed = 0; +#if MAKEFS_SUPPORT_DEFLATE + overallDataBytes += fsize; + if (deflateNonSsiFiles) { + if (can_be_compressed) { + if (fsize < OUT_BUF_SIZE) { + u8_t *ret_buf; + tdefl_status status; + size_t in_bytes = fsize; + size_t out_bytes = OUT_BUF_SIZE; + const void *next_in = buf; + void *next_out = s_outbuf; + /* create tdefl() compatible flags (we have to compose the low-level flags ourselves, or use tdefl_create_comp_flags_from_zip_params() but that means MINIZ_NO_ZLIB_APIS can't be defined). */ + mz_uint comp_flags = s_tdefl_num_probes[MZ_MIN(10, deflate_level)] | ((deflate_level <= 3) ? TDEFL_GREEDY_PARSING_FLAG : 0); + if (!deflate_level) { + comp_flags |= TDEFL_FORCE_ALL_RAW_BLOCKS; + } + status = tdefl_init(&g_deflator, NULL, NULL, comp_flags); + if (status != TDEFL_STATUS_OKAY) { + printf("tdefl_init() failed!\n"); + exit(-1); + } + memset(s_outbuf, 0, sizeof(s_outbuf)); + status = tdefl_compress(&g_deflator, next_in, &in_bytes, next_out, &out_bytes, TDEFL_FINISH); + if (status != TDEFL_STATUS_DONE) { + printf("deflate failed: %d\n", status); + exit(-1); + } + LWIP_ASSERT("out_bytes <= COPY_BUFSIZE", out_bytes <= OUT_BUF_SIZE); + if (out_bytes < fsize) { + ret_buf = (u8_t *)malloc(out_bytes); + LWIP_ASSERT("ret_buf != NULL", ret_buf != NULL); + memcpy(ret_buf, s_outbuf, out_bytes); + { + /* sanity-check compression be inflating and comparing to the original */ + tinfl_status dec_status; + tinfl_decompressor inflator; + size_t dec_in_bytes = out_bytes; + size_t dec_out_bytes = OUT_BUF_SIZE; + next_out = s_checkbuf; + + tinfl_init(&inflator); + memset(s_checkbuf, 0, sizeof(s_checkbuf)); + dec_status = tinfl_decompress(&inflator, (const mz_uint8 *)ret_buf, &dec_in_bytes, s_checkbuf, (mz_uint8 *)next_out, &dec_out_bytes, 0); + LWIP_ASSERT("tinfl_decompress failed", dec_status == TINFL_STATUS_DONE); + LWIP_ASSERT("tinfl_decompress size mismatch", fsize == dec_out_bytes); + LWIP_ASSERT("decompressed memcmp failed", !memcmp(s_checkbuf, buf, fsize)); + } + /* free original buffer, use compressed data + size */ + free(buf); + buf = ret_buf; + *file_size = out_bytes; + printf(" - deflate: %d bytes -> %d bytes (%.02f%%)" NEWLINE, (int)fsize, (int)out_bytes, (float)((out_bytes * 100.0) / fsize)); + deflatedBytesReduced += (size_t)(fsize - out_bytes); + *is_compressed = 1; + } else { + printf(" - uncompressed: (would be %d bytes larger using deflate)" NEWLINE, (int)(out_bytes - fsize)); + } + } else { + printf(" - uncompressed: (file is larger than deflate buffer)" NEWLINE); + } + } else { + printf(" - cannot be compressed" NEWLINE); + } + } +#else + LWIP_UNUSED_ARG(can_be_compressed); +#endif + fclose(inFile); + return buf; +} + +static void process_file_data(FILE *data_file, u8_t *file_data, size_t file_size) +{ + size_t written, i, src_off = 0; + size_t off = 0; + LWIP_UNUSED_ARG(written); /* for LWIP_NOASSERT */ + for (i = 0; i < file_size; i++) { + LWIP_ASSERT("file_buffer_c overflow", off < sizeof(file_buffer_c) - 5); + sprintf(&file_buffer_c[off], "0x%02x,", file_data[i]); + off += 5; + if ((++src_off % HEX_BYTES_PER_LINE) == 0) { + LWIP_ASSERT("file_buffer_c overflow", off < sizeof(file_buffer_c) - NEWLINE_LEN); + memcpy(&file_buffer_c[off], NEWLINE, NEWLINE_LEN); + off += NEWLINE_LEN; + } + if (off + 20 >= sizeof(file_buffer_c)) { + written = fwrite(file_buffer_c, 1, off, data_file); + LWIP_ASSERT("written == off", written == off); + off = 0; + } + } + written = fwrite(file_buffer_c, 1, off, data_file); + LWIP_ASSERT("written == off", written == off); +} + +static int write_checksums(FILE *struct_file, const char *varname, + u16_t hdr_len, u16_t hdr_chksum, const u8_t *file_data, size_t file_size) +{ + int chunk_size = TCP_MSS; + int offset, src_offset; + size_t len; + int i = 0; +#if LWIP_TCP_TIMESTAMPS + /* when timestamps are used, usable space is 12 bytes less per segment */ + chunk_size -= 12; +#endif + + fprintf(struct_file, "#if HTTPD_PRECALCULATED_CHECKSUM" NEWLINE); + fprintf(struct_file, "const struct fsdata_chksum chksums_%s[] = {" NEWLINE, varname); + + if (hdr_len > 0) { + /* add checksum for HTTP header */ + fprintf(struct_file, "{%d, 0x%04x, %d}," NEWLINE, 0, hdr_chksum, hdr_len); + i++; + } + src_offset = 0; + for (offset = hdr_len; ; offset += len) { + unsigned short chksum; + const void *data = (const void *)&file_data[src_offset]; + len = LWIP_MIN(chunk_size, (int)file_size - src_offset); + if (len == 0) { + break; + } + chksum = ~inet_chksum(data, (u16_t)len); + /* add checksum for data */ + fprintf(struct_file, "{%d, 0x%04x, %"SZT_F"}," NEWLINE, offset, chksum, len); + i++; + } + fprintf(struct_file, "};" NEWLINE); + fprintf(struct_file, "#endif /* HTTPD_PRECALCULATED_CHECKSUM */" NEWLINE); + return i; +} + +static int is_valid_char_for_c_var(char x) +{ + if (((x >= 'A') && (x <= 'Z')) || + ((x >= 'a') && (x <= 'z')) || + ((x >= '0') && (x <= '9')) || + (x == '_')) { + return 1; + } + return 0; +} + +static void fix_filename_for_c(char *qualifiedName, size_t max_len) +{ + struct file_entry *f; + size_t len = strlen(qualifiedName); + char *new_name = (char *)malloc(len + 2); + int filename_ok; + int cnt = 0; + size_t i; + if (len + 3 == max_len) { + printf("File name too long: \"%s\"\n", qualifiedName); + exit(-1); + } + strcpy(new_name, qualifiedName); + for (i = 0; i < len; i++) { + if (!is_valid_char_for_c_var(new_name[i])) { + new_name[i] = '_'; + } + } + do { + filename_ok = 1; + for (f = first_file; f != NULL; f = f->next) { + if (!strcmp(f->filename_c, new_name)) { + filename_ok = 0; + cnt++; + /* try next unique file name */ + sprintf(&new_name[len], "%d", cnt); + break; + } + } + } while (!filename_ok && (cnt < 999)); + if (!filename_ok) { + printf("Failed to get unique file name: \"%s\"\n", qualifiedName); + exit(-1); + } + strcpy(qualifiedName, new_name); + free(new_name); +} + +static void register_filename(const char *qualifiedName) +{ + struct file_entry *fe = (struct file_entry *)malloc(sizeof(struct file_entry)); + fe->filename_c = strdup(qualifiedName); + fe->next = NULL; + if (first_file == NULL) { + first_file = last_file = fe; + } else { + last_file->next = fe; + last_file = fe; + } +} + +static int checkSsiByFilelist(const char* filename_listfile) +{ + FILE *f = fopen(filename_listfile, "r"); + if (f != NULL) { + char *buf; + long rs; + size_t fsize, readcount; + size_t i, l, num_lines; + char **lines; + int state; + + fseek(f, 0, SEEK_END); + rs = ftell(f); + if (rs < 0) { + printf("ftell failed with %d\n", errno); + fclose(f); + return 0; + } + fsize = (size_t)rs; + fseek(f, 0, SEEK_SET); + buf = (char*)malloc(fsize); + if (!buf) { + printf("failed to allocate ssi file buffer\n"); + fclose(f); + return 0; + } + memset(buf, 0, fsize); + readcount = fread(buf, 1, fsize, f); + fclose(f); + if ((readcount > fsize) || !readcount) { + printf("failed to read data from ssi file\n"); + free(buf); + return 0; + } + + /* first pass: get the number of lines (and convert newlines to '0') */ + num_lines = 1; + for (i = 0; i < readcount; i++) { + if (buf[i] == '\n') { + num_lines++; + buf[i] = 0; + } else if (buf[i] == '\r') { + buf[i] = 0; + } + } + /* allocate the line pointer array */ + lines = (char**)malloc(sizeof(char*) * num_lines); + if (!lines) { + printf("failed to allocate ssi line buffer\n"); + free(buf); + return 0; + } + memset(lines, 0, sizeof(char*) * num_lines); + l = 0; + state = 0; + for (i = 0; i < readcount; i++) { + if (state) { + /* waiting for null */ + if (buf[i] == 0) { + state = 0; + } + } else { + /* waiting for beginning of new string */ + if (buf[i] != 0) { + LWIP_ASSERT("lines array overflow", l < num_lines); + lines[l] = &buf[i]; + state = 1; + l++; + } + } + } + LWIP_ASSERT("lines array overflow", l < num_lines); + + ssi_file_buffer = buf; + ssi_file_lines = lines; + ssi_file_num_lines = l; + } + return 0; +} + +static int is_ssi_file(const char *filename) +{ + if (supportSsi) { + if (ssi_file_buffer) { + /* compare by list */ + size_t i; + int ret = 0; + /* build up the relative path to this file */ + size_t sublen = strlen(curSubdir); + size_t freelen = sizeof(curSubdir) - sublen - 1; + strncat(curSubdir, "/", freelen); + strncat(curSubdir, filename, freelen - 1); + curSubdir[sizeof(curSubdir) - 1] = 0; + for (i = 0; i < ssi_file_num_lines; i++) { + const char *listed_file = ssi_file_lines[i]; + /* compare without the leading '/' */ + if (!strcmp(&curSubdir[1], listed_file)) { + ret = 1; + } + } + curSubdir[sublen] = 0; + return ret; +#if LWIP_HTTPD_SSI_BY_FILE_EXTENSION + } else { + /* check file extension */ + size_t loop; + for (loop = 0; loop < NUM_SHTML_EXTENSIONS; loop++) { + if (strstr(filename, g_pcSSIExtensions[loop])) { + return 1; + } + } +#endif /* LWIP_HTTPD_SSI_BY_FILE_EXTENSION */ + } + } + return 0; +} + +static int ext_in_list(const char* filename, const char *ext_list) +{ + int found = 0; + const char *ext = ext_list; + if (ext_list == NULL) { + return 0; + } + while(*ext != '\0') { + const char *comma = strchr(ext, ','); + size_t ext_size; + size_t filename_size = strlen(filename); + if (comma == NULL) { + comma = strchr(ext, '\0'); + } + ext_size = comma - ext; + if ((filename[filename_size - ext_size - 1] == '.') && + !strncmp(&filename[filename_size - ext_size], ext, ext_size)) { + found = 1; + break; + } + ext = comma + 1; + } + + return found; +} + +static int file_to_exclude(const char *filename) +{ + return (exclude_list != NULL) && ext_in_list(filename, exclude_list); +} + +static int file_can_be_compressed(const char *filename) +{ + return (ncompress_list == NULL) || !ext_in_list(filename, ncompress_list); +} + +int process_file(FILE *data_file, FILE *struct_file, const char *filename) +{ + char varname[MAX_PATH_LEN]; + int i = 0; + char qualifiedName[MAX_PATH_LEN]; + int file_size; + u16_t http_hdr_chksum = 0; + u16_t http_hdr_len = 0; + int chksum_count = 0; + u8_t flags = 0; + u8_t has_content_len; + u8_t *file_data; + int is_ssi; + int can_be_compressed; + int is_compressed = 0; + int flags_printed; + + /* create qualified name (@todo: prepend slash or not?) */ + snprintf(qualifiedName, sizeof(qualifiedName), "%s/%s", curSubdir, filename); + /* create C variable name */ + strncpy(varname, qualifiedName, sizeof(varname)); + /* convert slashes & dots to underscores */ + fix_filename_for_c(varname, MAX_PATH_LEN); + register_filename(varname); +#if ALIGN_PAYLOAD + /* to force even alignment of array, type 1 */ + fprintf(data_file, "#if FSDATA_FILE_ALIGNMENT==1" NEWLINE); + fprintf(data_file, "static const " PAYLOAD_ALIGN_TYPE " dummy_align_%s = %d;" NEWLINE, varname, payload_alingment_dummy_counter++); + fprintf(data_file, "#endif" NEWLINE); +#endif /* ALIGN_PAYLOAD */ + fprintf(data_file, "static const unsigned char FSDATA_ALIGN_PRE data_%s[] FSDATA_ALIGN_POST = {" NEWLINE, varname); + /* encode source file name (used by file system, not returned to browser) */ + fprintf(data_file, "/* %s (%"SZT_F" chars) */" NEWLINE, qualifiedName, strlen(qualifiedName) + 1); + file_put_ascii(data_file, qualifiedName, strlen(qualifiedName) + 1, &i); +#if ALIGN_PAYLOAD + /* pad to even number of bytes to assure payload is on aligned boundary */ + while (i % PAYLOAD_ALIGNMENT != 0) { + fprintf(data_file, "0x%02x,", 0); + i++; + } +#endif /* ALIGN_PAYLOAD */ + fprintf(data_file, NEWLINE); + + is_ssi = is_ssi_file(filename); + if (is_ssi) { + flags |= FS_FILE_FLAGS_SSI; + } + has_content_len = !is_ssi; + can_be_compressed = includeHttpHeader && !is_ssi && file_can_be_compressed(filename); + file_data = get_file_data(filename, &file_size, can_be_compressed, &is_compressed); + if (includeHttpHeader) { + file_write_http_header(data_file, filename, file_size, &http_hdr_len, &http_hdr_chksum, has_content_len, is_compressed); + flags |= FS_FILE_FLAGS_HEADER_INCLUDED; + if (has_content_len) { + flags |= FS_FILE_FLAGS_HEADER_PERSISTENT; + if (useHttp11) { + flags |= FS_FILE_FLAGS_HEADER_HTTPVER_1_1; + } + } + } + if (precalcChksum) { + chksum_count = write_checksums(struct_file, varname, http_hdr_len, http_hdr_chksum, file_data, file_size); + } + + /* build declaration of struct fsdata_file in temp file */ + fprintf(struct_file, "const struct fsdata_file file_%s[] = { {" NEWLINE, varname); + fprintf(struct_file, "file_%s," NEWLINE, lastFileVar); + fprintf(struct_file, "data_%s," NEWLINE, varname); + fprintf(struct_file, "data_%s + %d," NEWLINE, varname, i); + fprintf(struct_file, "sizeof(data_%s) - %d," NEWLINE, varname, i); + + flags_printed = 0; + if (flags & FS_FILE_FLAGS_HEADER_INCLUDED) { + fputs("FS_FILE_FLAGS_HEADER_INCLUDED", struct_file); + flags_printed = 1; + } + if (flags & FS_FILE_FLAGS_HEADER_PERSISTENT) { + if (flags_printed) { + fputs(" | ", struct_file); + } + fputs("FS_FILE_FLAGS_HEADER_PERSISTENT", struct_file); + flags_printed = 1; + } + if (flags & FS_FILE_FLAGS_HEADER_HTTPVER_1_1) { + if (flags_printed) { + fputs(" | ", struct_file); + } + fputs("FS_FILE_FLAGS_HEADER_HTTPVER_1_1", struct_file); + flags_printed = 1; + } + if (flags & FS_FILE_FLAGS_SSI) { + if (flags_printed) { + fputs(" | ", struct_file); + } + fputs("FS_FILE_FLAGS_SSI", struct_file); + flags_printed = 1; + } + if (!flags_printed) { + fputs("0", struct_file); + } + fputs("," NEWLINE, struct_file); + if (precalcChksum) { + fprintf(struct_file, "#if HTTPD_PRECALCULATED_CHECKSUM" NEWLINE); + fprintf(struct_file, "%d, chksums_%s," NEWLINE, chksum_count, varname); + fprintf(struct_file, "#endif /* HTTPD_PRECALCULATED_CHECKSUM */" NEWLINE); + } + fprintf(struct_file, "}};" NEWLINE NEWLINE); + strcpy(lastFileVar, varname); + + /* write actual file contents */ + i = 0; + fprintf(data_file, NEWLINE "/* raw file data (%d bytes) */" NEWLINE, file_size); + process_file_data(data_file, file_data, file_size); + fprintf(data_file, "};" NEWLINE NEWLINE); + free(file_data); + return 0; +} + +int file_write_http_header(FILE *data_file, const char *filename, int file_size, u16_t *http_hdr_len, + u16_t *http_hdr_chksum, u8_t provide_content_len, int is_compressed) +{ + int i = 0; + int response_type = HTTP_HDR_OK; + const char *file_type; + const char *cur_string; + size_t cur_len; + int written = 0; + size_t hdr_len = 0; + u16_t acc; + const char *file_ext; + size_t j; + u8_t provide_last_modified = includeLastModified; + + memset(hdr_buf, 0, sizeof(hdr_buf)); + + if (useHttp11) { + response_type = HTTP_HDR_OK_11; + } + + fprintf(data_file, NEWLINE "/* HTTP header */"); + if (strstr(filename, "404.") == filename) { + response_type = HTTP_HDR_NOT_FOUND; + if (useHttp11) { + response_type = HTTP_HDR_NOT_FOUND_11; + } + } else if (strstr(filename, "400.") == filename) { + response_type = HTTP_HDR_BAD_REQUEST; + if (useHttp11) { + response_type = HTTP_HDR_BAD_REQUEST_11; + } + } else if (strstr(filename, "501.") == filename) { + response_type = HTTP_HDR_NOT_IMPL; + if (useHttp11) { + response_type = HTTP_HDR_NOT_IMPL_11; + } + } + cur_string = g_psHTTPHeaderStrings[response_type]; + cur_len = strlen(cur_string); + fprintf(data_file, NEWLINE "/* \"%s\" (%"SZT_F" bytes) */" NEWLINE, cur_string, cur_len); + written += file_put_ascii(data_file, cur_string, cur_len, &i); + i = 0; + if (precalcChksum) { + memcpy(&hdr_buf[hdr_len], cur_string, cur_len); + hdr_len += cur_len; + } + + cur_string = serverID; + cur_len = strlen(cur_string); + fprintf(data_file, NEWLINE "/* \"%s\" (%"SZT_F" bytes) */" NEWLINE, cur_string, cur_len); + written += file_put_ascii(data_file, cur_string, cur_len, &i); + i = 0; + if (precalcChksum) { + memcpy(&hdr_buf[hdr_len], cur_string, cur_len); + hdr_len += cur_len; + } + + file_ext = filename; + if (file_ext != NULL) { + while (strstr(file_ext, ".") != NULL) { + file_ext = strstr(file_ext, "."); + file_ext++; + } + } + if ((file_ext == NULL) || (*file_ext == 0)) { + printf("failed to get extension for file \"%s\", using default.\n", filename); + file_type = HTTP_HDR_DEFAULT_TYPE; + } else { + file_type = NULL; + for (j = 0; j < NUM_HTTP_HEADERS; j++) { + if (!strcmp(file_ext, g_psHTTPHeaders[j].extension)) { + file_type = g_psHTTPHeaders[j].content_type; + break; + } + } + if (file_type == NULL) { + printf("failed to get file type for extension \"%s\", using default.\n", file_ext); + file_type = HTTP_HDR_DEFAULT_TYPE; + } + } + + /* Content-Length is used for persistent connections in HTTP/1.1 but also for + download progress in older versions + @todo: just use a big-enough buffer and let the HTTPD send spaces? */ + if (provide_content_len) { + char intbuf[MAX_PATH_LEN]; + int content_len = file_size; + memset(intbuf, 0, sizeof(intbuf)); + cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONTENT_LENGTH]; + cur_len = strlen(cur_string); + fprintf(data_file, NEWLINE "/* \"%s%d\r\n\" (%"SZT_F"+ bytes) */" NEWLINE, cur_string, content_len, cur_len + 2); + written += file_put_ascii(data_file, cur_string, cur_len, &i); + if (precalcChksum) { + memcpy(&hdr_buf[hdr_len], cur_string, cur_len); + hdr_len += cur_len; + } + + lwip_itoa(intbuf, sizeof(intbuf), content_len); + strcat(intbuf, "\r\n"); + cur_len = strlen(intbuf); + written += file_put_ascii(data_file, intbuf, cur_len, &i); + i = 0; + if (precalcChksum) { + memcpy(&hdr_buf[hdr_len], intbuf, cur_len); + hdr_len += cur_len; + } + } + if (provide_last_modified) { + char modbuf[256]; + struct stat stat_data; + struct tm *t; + memset(modbuf, 0, sizeof(modbuf)); + memset(&stat_data, 0, sizeof(stat_data)); + cur_string = modbuf; + strcpy(modbuf, "Last-Modified: "); + if (stat(filename, &stat_data) != 0) { + printf("stat(%s) failed with error %d\n", filename, errno); + exit(-1); + } + t = gmtime(&stat_data.st_mtime); + if (t == NULL) { + printf("gmtime() failed with error %d\n", errno); + exit(-1); + } + strftime(&modbuf[15], sizeof(modbuf) - 15, "%a, %d %b %Y %H:%M:%S GMT", t); + cur_len = strlen(cur_string); + fprintf(data_file, NEWLINE "/* \"%s\"\r\n\" (%"SZT_F"+ bytes) */" NEWLINE, cur_string, cur_len + 2); + written += file_put_ascii(data_file, cur_string, cur_len, &i); + if (precalcChksum) { + memcpy(&hdr_buf[hdr_len], cur_string, cur_len); + hdr_len += cur_len; + } + + modbuf[0] = 0; + strcat(modbuf, "\r\n"); + cur_len = strlen(modbuf); + written += file_put_ascii(data_file, modbuf, cur_len, &i); + i = 0; + if (precalcChksum) { + memcpy(&hdr_buf[hdr_len], modbuf, cur_len); + hdr_len += cur_len; + } + } + + /* HTTP/1.1 implements persistent connections */ + if (useHttp11) { + if (provide_content_len) { + cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONN_KEEPALIVE]; + } else { + /* no Content-Length available, so a persistent connection is no possible + because the client does not know the data length */ + cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONN_CLOSE]; + } + cur_len = strlen(cur_string); + fprintf(data_file, NEWLINE "/* \"%s\" (%"SZT_F" bytes) */" NEWLINE, cur_string, cur_len); + written += file_put_ascii(data_file, cur_string, cur_len, &i); + i = 0; + if (precalcChksum) { + memcpy(&hdr_buf[hdr_len], cur_string, cur_len); + hdr_len += cur_len; + } + } + +#if MAKEFS_SUPPORT_DEFLATE + if (is_compressed) { + /* tell the client about the deflate encoding */ + LWIP_ASSERT("error", deflateNonSsiFiles); + cur_string = "Content-Encoding: deflate\r\n"; + cur_len = strlen(cur_string); + fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len); + written += file_put_ascii(data_file, cur_string, cur_len, &i); + i = 0; + } +#else + LWIP_UNUSED_ARG(is_compressed); +#endif + + /* write content-type, ATTENTION: this includes the double-CRLF! */ + cur_string = file_type; + cur_len = strlen(cur_string); + fprintf(data_file, NEWLINE "/* \"%s\" (%"SZT_F" bytes) */" NEWLINE, cur_string, cur_len); + written += file_put_ascii(data_file, cur_string, cur_len, &i); + i = 0; + + /* ATTENTION: headers are done now (double-CRLF has been written!) */ + + if (precalcChksum) { + LWIP_ASSERT("hdr_len + cur_len <= sizeof(hdr_buf)", hdr_len + cur_len <= sizeof(hdr_buf)); + memcpy(&hdr_buf[hdr_len], cur_string, cur_len); + hdr_len += cur_len; + + LWIP_ASSERT("strlen(hdr_buf) == hdr_len", strlen(hdr_buf) == hdr_len); + acc = ~inet_chksum(hdr_buf, (u16_t)hdr_len); + *http_hdr_len = (u16_t)hdr_len; + *http_hdr_chksum = acc; + } + + return written; +} + +int file_put_ascii(FILE *file, const char *ascii_string, int len, int *i) +{ + int x; + for (x = 0; x < len; x++) { + unsigned char cur = ascii_string[x]; + fprintf(file, "0x%02x,", cur); + if ((++(*i) % HEX_BYTES_PER_LINE) == 0) { + fprintf(file, NEWLINE); + } + } + return len; +} + +int s_put_ascii(char *buf, const char *ascii_string, int len, int *i) +{ + int x; + int idx = 0; + for (x = 0; x < len; x++) { + unsigned char cur = ascii_string[x]; + sprintf(&buf[idx], "0x%02x,", cur); + idx += 5; + if ((++(*i) % HEX_BYTES_PER_LINE) == 0) { + sprintf(&buf[idx], NEWLINE); + idx += NEWLINE_LEN; + } + } + return len; +} diff --git a/middleware/lwip/src/apps/http/makefsdata/readme.txt b/middleware/lwip/src/apps/http/makefsdata/readme.txt new file mode 100644 index 0000000..3768585 --- /dev/null +++ b/middleware/lwip/src/apps/http/makefsdata/readme.txt @@ -0,0 +1,13 @@ +This directory contains a script ('makefsdata') to create C code suitable for +httpd for given html pages (or other files) in a directory. + +There is also a plain C console application doing the same and extended a bit. + +Usage: htmlgen [targetdir] [-s] [-i]s + targetdir: relative or absolute path to files to convert + switch -s: toggle processing of subdirectories (default is on) + switch -e: exclude HTTP header from file (header is created at runtime, default is on) + switch -11: include HTTP 1.1 header (1.0 is default) + + if targetdir not specified, makefsdata will attempt to + process files in subdirectory 'fs'. diff --git a/middleware/lwip/src/apps/http/makefsdata/tinydir.h b/middleware/lwip/src/apps/http/makefsdata/tinydir.h new file mode 100644 index 0000000..32ae5e8 --- /dev/null +++ b/middleware/lwip/src/apps/http/makefsdata/tinydir.h @@ -0,0 +1,808 @@ +/* +Copyright (c) 2013-2017, tinydir authors: +- Cong Xu +- Lautis Sun +- Baudouin Feildel +- Andargor +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR +ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +#ifndef TINYDIR_H +#define TINYDIR_H + +#ifdef __cplusplus +extern "C" { +#endif + +#if ((defined _UNICODE) && !(defined UNICODE)) +#define UNICODE +#endif + +#if ((defined UNICODE) && !(defined _UNICODE)) +#define _UNICODE +#endif + +#include +#include +#include +#ifdef _MSC_VER +# define WIN32_LEAN_AND_MEAN +# include +# include +# pragma warning(push) +# pragma warning (disable : 4996) +#else +# include +# include +# include +# include +#endif +#ifdef __MINGW32__ +# include +#endif + + +/* types */ + +/* Windows UNICODE wide character support */ +#if defined _MSC_VER || defined __MINGW32__ +#define _tinydir_char_t TCHAR +#define TINYDIR_STRING(s) _TEXT(s) +#define _tinydir_strlen _tcslen +#define _tinydir_strcpy _tcscpy +#define _tinydir_strcat _tcscat +#define _tinydir_strcmp _tcscmp +#define _tinydir_strrchr _tcsrchr +#define _tinydir_strncmp _tcsncmp +#else +#define _tinydir_char_t char +#define TINYDIR_STRING(s) s +#define _tinydir_strlen strlen +#define _tinydir_strcpy strcpy +#define _tinydir_strcat strcat +#define _tinydir_strcmp strcmp +#define _tinydir_strrchr strrchr +#define _tinydir_strncmp strncmp +#endif + +#if (defined _MSC_VER || defined __MINGW32__) +#include +#define _TINYDIR_PATH_MAX MAX_PATH +#elif defined __linux__ +#include +#define _TINYDIR_PATH_MAX PATH_MAX +#else +#define _TINYDIR_PATH_MAX 4096 +#endif + +#ifdef _MSC_VER +/* extra chars for the "\\*" mask */ +# define _TINYDIR_PATH_EXTRA 2 +#else +# define _TINYDIR_PATH_EXTRA 0 +#endif + +#define _TINYDIR_FILENAME_MAX 256 + +#if (defined _MSC_VER || defined __MINGW32__) +#define _TINYDIR_DRIVE_MAX 3 +#endif + +#ifdef _MSC_VER +# define _TINYDIR_FUNC static __inline +#elif !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L +# define _TINYDIR_FUNC static __inline__ +#else +# define _TINYDIR_FUNC static inline +#endif + +/* readdir_r usage; define TINYDIR_USE_READDIR_R to use it (if supported) */ +#ifdef TINYDIR_USE_READDIR_R + +/* readdir_r is a POSIX-only function, and may not be available under various + * environments/settings, e.g. MinGW. Use readdir fallback */ +#if _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _BSD_SOURCE || _SVID_SOURCE ||\ + _POSIX_SOURCE +# define _TINYDIR_HAS_READDIR_R +#endif +#if _POSIX_C_SOURCE >= 200112L +# define _TINYDIR_HAS_FPATHCONF +# include +#endif +#if _BSD_SOURCE || _SVID_SOURCE || \ + (_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700) +# define _TINYDIR_HAS_DIRFD +# include +#endif +#if defined _TINYDIR_HAS_FPATHCONF && defined _TINYDIR_HAS_DIRFD &&\ + defined _PC_NAME_MAX +# define _TINYDIR_USE_FPATHCONF +#endif +#if defined __MINGW32__ || !defined _TINYDIR_HAS_READDIR_R ||\ + !(defined _TINYDIR_USE_FPATHCONF || defined NAME_MAX) +# define _TINYDIR_USE_READDIR +#endif + +/* Use readdir by default */ +#else +# define _TINYDIR_USE_READDIR +#endif + +/* MINGW32 has two versions of dirent, ASCII and UNICODE*/ +#ifndef _MSC_VER +#if (defined __MINGW32__) && (defined _UNICODE) +#define _TINYDIR_DIR _WDIR +#define _tinydir_dirent _wdirent +#define _tinydir_opendir _wopendir +#define _tinydir_readdir _wreaddir +#define _tinydir_closedir _wclosedir +#else +#define _TINYDIR_DIR DIR +#define _tinydir_dirent dirent +#define _tinydir_opendir opendir +#define _tinydir_readdir readdir +#define _tinydir_closedir closedir +#endif +#endif + +/* Allow user to use a custom allocator by defining _TINYDIR_MALLOC and _TINYDIR_FREE. */ +#if defined(_TINYDIR_MALLOC) && defined(_TINYDIR_FREE) +#elif !defined(_TINYDIR_MALLOC) && !defined(_TINYDIR_FREE) +#else +#error "Either define both alloc and free or none of them!" +#endif + +#if !defined(_TINYDIR_MALLOC) + #define _TINYDIR_MALLOC(_size) malloc(_size) + #define _TINYDIR_FREE(_ptr) free(_ptr) +#endif /* !defined(_TINYDIR_MALLOC) */ + +typedef struct tinydir_file +{ + _tinydir_char_t path[_TINYDIR_PATH_MAX]; + _tinydir_char_t name[_TINYDIR_FILENAME_MAX]; + _tinydir_char_t *extension; + int is_dir; + int is_reg; + +#ifndef _MSC_VER +#ifdef __MINGW32__ + struct _stat _s; +#else + struct stat _s; +#endif +#endif +} tinydir_file; + +typedef struct tinydir_dir +{ + _tinydir_char_t path[_TINYDIR_PATH_MAX]; + int has_next; + size_t n_files; + + tinydir_file *_files; +#ifdef _MSC_VER + HANDLE _h; + WIN32_FIND_DATA _f; +#else + _TINYDIR_DIR *_d; + struct _tinydir_dirent *_e; +#ifndef _TINYDIR_USE_READDIR + struct _tinydir_dirent *_ep; +#endif +#endif +} tinydir_dir; + + +/* declarations */ + +_TINYDIR_FUNC +int tinydir_open(tinydir_dir *dir, const _tinydir_char_t *path); +_TINYDIR_FUNC +int tinydir_open_sorted(tinydir_dir *dir, const _tinydir_char_t *path); +_TINYDIR_FUNC +void tinydir_close(tinydir_dir *dir); + +_TINYDIR_FUNC +int tinydir_next(tinydir_dir *dir); +_TINYDIR_FUNC +int tinydir_readfile(const tinydir_dir *dir, tinydir_file *file); +_TINYDIR_FUNC +int tinydir_readfile_n(const tinydir_dir *dir, tinydir_file *file, size_t i); +_TINYDIR_FUNC +int tinydir_open_subdir_n(tinydir_dir *dir, size_t i); + +_TINYDIR_FUNC +int tinydir_file_open(tinydir_file *file, const _tinydir_char_t *path); +_TINYDIR_FUNC +void _tinydir_get_ext(tinydir_file *file); +_TINYDIR_FUNC +int _tinydir_file_cmp(const void *a, const void *b); +#ifndef _MSC_VER +#ifndef _TINYDIR_USE_READDIR +_TINYDIR_FUNC +size_t _tinydir_dirent_buf_size(_TINYDIR_DIR *dirp); +#endif +#endif + + +/* definitions*/ + +_TINYDIR_FUNC +int tinydir_open(tinydir_dir *dir, const _tinydir_char_t *path) +{ +#ifndef _MSC_VER +#ifndef _TINYDIR_USE_READDIR + int error; + int size; /* using int size */ +#endif +#else + _tinydir_char_t path_buf[_TINYDIR_PATH_MAX]; +#endif + _tinydir_char_t *pathp; + + if (dir == NULL || path == NULL || _tinydir_strlen(path) == 0) + { + errno = EINVAL; + return -1; + } + if (_tinydir_strlen(path) + _TINYDIR_PATH_EXTRA >= _TINYDIR_PATH_MAX) + { + errno = ENAMETOOLONG; + return -1; + } + + /* initialise dir */ + dir->_files = NULL; +#ifdef _MSC_VER + dir->_h = INVALID_HANDLE_VALUE; +#else + dir->_d = NULL; +#ifndef _TINYDIR_USE_READDIR + dir->_ep = NULL; +#endif +#endif + tinydir_close(dir); + + _tinydir_strcpy(dir->path, path); + /* Remove trailing slashes */ + pathp = &dir->path[_tinydir_strlen(dir->path) - 1]; + while (pathp != dir->path && (*pathp == TINYDIR_STRING('\\') || *pathp == TINYDIR_STRING('/'))) + { + *pathp = TINYDIR_STRING('\0'); + pathp++; + } +#ifdef _MSC_VER + _tinydir_strcpy(path_buf, dir->path); + _tinydir_strcat(path_buf, TINYDIR_STRING("\\*")); +#if (defined WINAPI_FAMILY) && (WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP) + dir->_h = FindFirstFileEx(path_buf, FindExInfoStandard, &dir->_f, FindExSearchNameMatch, NULL, 0); +#else + dir->_h = FindFirstFile(path_buf, &dir->_f); +#endif + if (dir->_h == INVALID_HANDLE_VALUE) + { + errno = ENOENT; +#else + dir->_d = _tinydir_opendir(path); + if (dir->_d == NULL) + { +#endif + goto bail; + } + + /* read first file */ + dir->has_next = 1; +#ifndef _MSC_VER +#ifdef _TINYDIR_USE_READDIR + dir->_e = _tinydir_readdir(dir->_d); +#else + /* allocate dirent buffer for readdir_r */ + size = _tinydir_dirent_buf_size(dir->_d); /* conversion to int */ + if (size == -1) return -1; + dir->_ep = (struct _tinydir_dirent*)_TINYDIR_MALLOC(size); + if (dir->_ep == NULL) return -1; + + error = readdir_r(dir->_d, dir->_ep, &dir->_e); + if (error != 0) return -1; +#endif + if (dir->_e == NULL) + { + dir->has_next = 0; + } +#endif + + return 0; + +bail: + tinydir_close(dir); + return -1; +} + +_TINYDIR_FUNC +int tinydir_open_sorted(tinydir_dir *dir, const _tinydir_char_t *path) +{ + /* Count the number of files first, to pre-allocate the files array */ + size_t n_files = 0; + if (tinydir_open(dir, path) == -1) + { + return -1; + } + while (dir->has_next) + { + n_files++; + if (tinydir_next(dir) == -1) + { + goto bail; + } + } + tinydir_close(dir); + + if (tinydir_open(dir, path) == -1) + { + return -1; + } + + dir->n_files = 0; + dir->_files = (tinydir_file *)_TINYDIR_MALLOC(sizeof *dir->_files * n_files); + if (dir->_files == NULL) + { + goto bail; + } + while (dir->has_next) + { + tinydir_file *p_file; + dir->n_files++; + + p_file = &dir->_files[dir->n_files - 1]; + if (tinydir_readfile(dir, p_file) == -1) + { + goto bail; + } + + if (tinydir_next(dir) == -1) + { + goto bail; + } + + /* Just in case the number of files has changed between the first and + second reads, terminate without writing into unallocated memory */ + if (dir->n_files == n_files) + { + break; + } + } + + qsort(dir->_files, dir->n_files, sizeof(tinydir_file), _tinydir_file_cmp); + + return 0; + +bail: + tinydir_close(dir); + return -1; +} + +_TINYDIR_FUNC +void tinydir_close(tinydir_dir *dir) +{ + if (dir == NULL) + { + return; + } + + memset(dir->path, 0, sizeof(dir->path)); + dir->has_next = 0; + dir->n_files = 0; + _TINYDIR_FREE(dir->_files); + dir->_files = NULL; +#ifdef _MSC_VER + if (dir->_h != INVALID_HANDLE_VALUE) + { + FindClose(dir->_h); + } + dir->_h = INVALID_HANDLE_VALUE; +#else + if (dir->_d) + { + _tinydir_closedir(dir->_d); + } + dir->_d = NULL; + dir->_e = NULL; +#ifndef _TINYDIR_USE_READDIR + _TINYDIR_FREE(dir->_ep); + dir->_ep = NULL; +#endif +#endif +} + +_TINYDIR_FUNC +int tinydir_next(tinydir_dir *dir) +{ + if (dir == NULL) + { + errno = EINVAL; + return -1; + } + if (!dir->has_next) + { + errno = ENOENT; + return -1; + } + +#ifdef _MSC_VER + if (FindNextFile(dir->_h, &dir->_f) == 0) +#else +#ifdef _TINYDIR_USE_READDIR + dir->_e = _tinydir_readdir(dir->_d); +#else + if (dir->_ep == NULL) + { + return -1; + } + if (readdir_r(dir->_d, dir->_ep, &dir->_e) != 0) + { + return -1; + } +#endif + if (dir->_e == NULL) +#endif + { + dir->has_next = 0; +#ifdef _MSC_VER + if (GetLastError() != ERROR_SUCCESS && + GetLastError() != ERROR_NO_MORE_FILES) + { + tinydir_close(dir); + errno = EIO; + return -1; + } +#endif + } + + return 0; +} + +_TINYDIR_FUNC +int tinydir_readfile(const tinydir_dir *dir, tinydir_file *file) +{ + if (dir == NULL || file == NULL) + { + errno = EINVAL; + return -1; + } +#ifdef _MSC_VER + if (dir->_h == INVALID_HANDLE_VALUE) +#else + if (dir->_e == NULL) +#endif + { + errno = ENOENT; + return -1; + } + if (_tinydir_strlen(dir->path) + + _tinydir_strlen( +#ifdef _MSC_VER + dir->_f.cFileName +#else + dir->_e->d_name +#endif + ) + 1 + _TINYDIR_PATH_EXTRA >= + _TINYDIR_PATH_MAX) + { + /* the path for the file will be too long */ + errno = ENAMETOOLONG; + return -1; + } + if (_tinydir_strlen( +#ifdef _MSC_VER + dir->_f.cFileName +#else + dir->_e->d_name +#endif + ) >= _TINYDIR_FILENAME_MAX) + { + errno = ENAMETOOLONG; + return -1; + } + + _tinydir_strcpy(file->path, dir->path); + _tinydir_strcat(file->path, TINYDIR_STRING("/")); + _tinydir_strcpy(file->name, +#ifdef _MSC_VER + dir->_f.cFileName +#else + dir->_e->d_name +#endif + ); + _tinydir_strcat(file->path, file->name); +#ifndef _MSC_VER +#ifdef __MINGW32__ + if (_tstat( +#else + if (stat( +#endif + file->path, &file->_s) == -1) + { + return -1; + } +#endif + _tinydir_get_ext(file); + + file->is_dir = +#ifdef _MSC_VER + !!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY); +#else + S_ISDIR(file->_s.st_mode); +#endif + file->is_reg = +#ifdef _MSC_VER + !!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_NORMAL) || + ( + !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DEVICE) && + !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && + !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_ENCRYPTED) && +#ifdef FILE_ATTRIBUTE_INTEGRITY_STREAM + !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_INTEGRITY_STREAM) && +#endif +#ifdef FILE_ATTRIBUTE_NO_SCRUB_DATA + !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_NO_SCRUB_DATA) && +#endif + !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_OFFLINE) && + !(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_TEMPORARY)); +#else + S_ISREG(file->_s.st_mode); +#endif + + return 0; +} + +_TINYDIR_FUNC +int tinydir_readfile_n(const tinydir_dir *dir, tinydir_file *file, size_t i) +{ + if (dir == NULL || file == NULL) + { + errno = EINVAL; + return -1; + } + if (i >= dir->n_files) + { + errno = ENOENT; + return -1; + } + + memcpy(file, &dir->_files[i], sizeof(tinydir_file)); + _tinydir_get_ext(file); + + return 0; +} + +_TINYDIR_FUNC +int tinydir_open_subdir_n(tinydir_dir *dir, size_t i) +{ + _tinydir_char_t path[_TINYDIR_PATH_MAX]; + if (dir == NULL) + { + errno = EINVAL; + return -1; + } + if (i >= dir->n_files || !dir->_files[i].is_dir) + { + errno = ENOENT; + return -1; + } + + _tinydir_strcpy(path, dir->_files[i].path); + tinydir_close(dir); + if (tinydir_open_sorted(dir, path) == -1) + { + return -1; + } + + return 0; +} + +/* Open a single file given its path */ +_TINYDIR_FUNC +int tinydir_file_open(tinydir_file *file, const _tinydir_char_t *path) +{ + tinydir_dir dir; + int result = 0; + int found = 0; + _tinydir_char_t dir_name_buf[_TINYDIR_PATH_MAX]; + _tinydir_char_t file_name_buf[_TINYDIR_FILENAME_MAX]; + _tinydir_char_t *dir_name; + _tinydir_char_t *base_name; +#if (defined _MSC_VER || defined __MINGW32__) + _tinydir_char_t drive_buf[_TINYDIR_PATH_MAX]; + _tinydir_char_t ext_buf[_TINYDIR_FILENAME_MAX]; +#endif + + if (file == NULL || path == NULL || _tinydir_strlen(path) == 0) + { + errno = EINVAL; + return -1; + } + if (_tinydir_strlen(path) + _TINYDIR_PATH_EXTRA >= _TINYDIR_PATH_MAX) + { + errno = ENAMETOOLONG; + return -1; + } + + /* Get the parent path */ +#if (defined _MSC_VER || defined __MINGW32__) +#if ((defined _MSC_VER) && (_MSC_VER >= 1400)) + _tsplitpath_s( + path, + drive_buf, _TINYDIR_DRIVE_MAX, + dir_name_buf, _TINYDIR_FILENAME_MAX, + file_name_buf, _TINYDIR_FILENAME_MAX, + ext_buf, _TINYDIR_FILENAME_MAX); +#else + _tsplitpath( + path, + drive_buf, + dir_name_buf, + file_name_buf, + ext_buf); +#endif + +/* _splitpath_s not work fine with only filename and widechar support */ +#ifdef _UNICODE + if (drive_buf[0] == L'\xFEFE') + drive_buf[0] = '\0'; + if (dir_name_buf[0] == L'\xFEFE') + dir_name_buf[0] = '\0'; +#endif + + if (errno) + { + errno = EINVAL; + return -1; + } + /* Emulate the behavior of dirname by returning "." for dir name if it's + empty */ + if (drive_buf[0] == '\0' && dir_name_buf[0] == '\0') + { + _tinydir_strcpy(dir_name_buf, TINYDIR_STRING(".")); + } + /* Concatenate the drive letter and dir name to form full dir name */ + _tinydir_strcat(drive_buf, dir_name_buf); + dir_name = drive_buf; + /* Concatenate the file name and extension to form base name */ + _tinydir_strcat(file_name_buf, ext_buf); + base_name = file_name_buf; +#else + _tinydir_strcpy(dir_name_buf, path); + dir_name = dirname(dir_name_buf); + _tinydir_strcpy(file_name_buf, path); + base_name =basename(file_name_buf); +#endif + + /* Open the parent directory */ + if (tinydir_open(&dir, dir_name) == -1) + { + return -1; + } + + /* Read through the parent directory and look for the file */ + while (dir.has_next) + { + if (tinydir_readfile(&dir, file) == -1) + { + result = -1; + goto bail; + } + if (_tinydir_strcmp(file->name, base_name) == 0) + { + /* File found */ + found = 1; + break; + } + tinydir_next(&dir); + } + if (!found) + { + result = -1; + errno = ENOENT; + } + +bail: + tinydir_close(&dir); + return result; +} + +_TINYDIR_FUNC +void _tinydir_get_ext(tinydir_file *file) +{ + _tinydir_char_t *period = _tinydir_strrchr(file->name, TINYDIR_STRING('.')); + if (period == NULL) + { + file->extension = &(file->name[_tinydir_strlen(file->name)]); + } + else + { + file->extension = period + 1; + } +} + +_TINYDIR_FUNC +int _tinydir_file_cmp(const void *a, const void *b) +{ + const tinydir_file *fa = (const tinydir_file *)a; + const tinydir_file *fb = (const tinydir_file *)b; + if (fa->is_dir != fb->is_dir) + { + return -(fa->is_dir - fb->is_dir); + } + return _tinydir_strncmp(fa->name, fb->name, _TINYDIR_FILENAME_MAX); +} + +#ifndef _MSC_VER +#ifndef _TINYDIR_USE_READDIR +/* +The following authored by Ben Hutchings +from https://womble.decadent.org.uk/readdir_r-advisory.html +*/ +/* Calculate the required buffer size (in bytes) for directory * +* entries read from the given directory handle. Return -1 if this * +* this cannot be done. * +* * +* This code does not trust values of NAME_MAX that are less than * +* 255, since some systems (including at least HP-UX) incorrectly * +* define it to be a smaller value. */ +_TINYDIR_FUNC +size_t _tinydir_dirent_buf_size(_TINYDIR_DIR *dirp) +{ + long name_max; + size_t name_end; + /* parameter may be unused */ + (void)dirp; + +#if defined _TINYDIR_USE_FPATHCONF + name_max = fpathconf(dirfd(dirp), _PC_NAME_MAX); + if (name_max == -1) +#if defined(NAME_MAX) + name_max = (NAME_MAX > 255) ? NAME_MAX : 255; +#else + return (size_t)(-1); +#endif +#elif defined(NAME_MAX) + name_max = (NAME_MAX > 255) ? NAME_MAX : 255; +#else +#error "buffer size for readdir_r cannot be determined" +#endif + name_end = (size_t)offsetof(struct _tinydir_dirent, d_name) + name_max + 1; + return (name_end > sizeof(struct _tinydir_dirent) ? + name_end : sizeof(struct _tinydir_dirent)); +} +#endif +#endif + +#ifdef __cplusplus +} +#endif + +# if defined (_MSC_VER) +# pragma warning(pop) +# endif + +#endif diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv.c b/middleware/lwip/src/apps/httpsrv/httpsrv.c new file mode 100644 index 0000000..6e84892 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv.c @@ -0,0 +1,252 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016,2019 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* This file contains the HTTPSRV implementation.*/ + +#include "httpsrv.h" +#include "httpsrv_supp.h" +#include "httpsrv_prv.h" +#include + +#define HTTPSRV_SERVER_TASK_NAME "HTTP server" + +/* +** Function for starting the HTTP server +** +** IN: +** HTTPSRV_PARAM_STRUCT* params - server parameters (port, ip, index page etc.) +** +** OUT: +** none +** +** Return Value: +** uint32_t server handle if successful, NULL otherwise +*/ +uint32_t HTTPSRV_init(HTTPSRV_PARAM_STRUCT *params) +{ + HTTPSRV_STRUCT *server; + uint32_t handle = 0; + + server = httpsrv_create_server(params); + if (server) + { + server->valid = HTTPSRV_VALID; + server->server_tid = sys_thread_new(HTTPSRV_SERVER_TASK_NAME, httpsrv_server_task, server, + HTTPSRV_CFG_SERVER_STACK_SIZE, server->params.task_prio); + if (server->server_tid == NULL) + { + httpsrv_destroy_server(server); + httpsrv_mem_free(server); + } + else + { + handle = (uint32_t)server; + } + } + + return (handle); +} + +/* +** Function for releasing/stopping HTTP server +** +** IN: +** uint32_t server_h - server handle +** +** OUT: +** none +** +** Return Value: +** uint32_t error code. HTTPSRV_OK if everything went right, positive number otherwise +*/ +void HTTPSRV_release(uint32_t server_h) +{ + HTTPSRV_STRUCT *server = (void *)server_h; + + if (server) + { + /* Shutdown server task and wait for its termination. */ + if (server->sock != -1) + { + server->valid = HTTPSRV_INVALID; + lwip_close(server->sock); /* Ublock select() */ + } + + while (server->server_tid) /* Wait for task completition.*/ + { + taskYIELD(); + } + httpsrv_mem_free(server); + } +} + +/* +** Write data to client from CGI script +** +** IN: +** HTTPSRV_CGI_RES_STRUCT* response - CGI response structure used for forming response +** +** OUT: +** none +** +** Return Value: +** uint_32 - Number of bytes written +*/ +uint32_t HTTPSRV_cgi_write(HTTPSRV_CGI_RES_STRUCT *response) +{ + HTTPSRV_SESSION_STRUCT *session = (HTTPSRV_SESSION_STRUCT *)response->ses_handle; + uint32_t retval = 0; + int32_t wrote; + + if (session == NULL) + { + return (0); + } + + if (!(session->flags & HTTPSRV_FLAG_HEADER_SENT)) + { + session->response.status_code = response->status_code; + session->response.content_type = response->content_type; + session->response.length = response->content_length; + + if (response->content_length < 0) + { + session->flags |= HTTPSRV_FLAG_IS_TRANSCODED; + } + + /* + * Ignore rest of received data in buffer (set buffer offset to zero). + * We do this because otherwise any buffered but unread data would be + * part of response (before header) and render it invalid. + */ + if (session->buffer.offset <= session->request.content_length) + { + session->request.content_length -= session->buffer.offset; + } + session->buffer.offset = 0; + httpsrv_sendhdr(session, response->content_length, 1); + } + + if (session->flags & HTTPSRV_FLAG_IS_TRANSCODED) + { + char length_str[sizeof("FFFFFFFF\r\n")] = {0}; + + /* Write length. */ + snprintf(length_str, sizeof(length_str), "%x\r\n", (unsigned int)response->data_length); + wrote = httpsrv_write(session, length_str, strlen(length_str)); + if (wrote < 0) + { + retval = 0; + goto EXIT; + } + /* Write data. */ + wrote = httpsrv_write(session, response->data, response->data_length); + if (wrote < 0) + { + retval = 0; + goto EXIT; + } + retval = wrote; + /* Write tail. */ + wrote = httpsrv_write(session, "\r\n", strlen("\r\n")); + if (wrote < 0) + { + retval = 0; + goto EXIT; + } + } + else if ((response->data != NULL) && (response->data_length > 0)) + { + retval = httpsrv_write(session, response->data, response->data_length); + } + +EXIT: + session->time = sys_now(); + return (retval); +} + +/* +** Read data from client to CGI script +** +** IN: +** uint32_t ses_handle - handle to session used for reading +** char* buffer - user buffer to read data to +** uint32_t length - size of buffer in bytes +** +** OUT: +** none +** +** Return Value: +** uint32_t - Number of bytes read +*/ +uint32_t HTTPSRV_cgi_read(uint32_t ses_handle, char *buffer, uint32_t length) +{ + HTTPSRV_SESSION_STRUCT *session = (HTTPSRV_SESSION_STRUCT *)ses_handle; + uint32_t retval; + + if ((session == NULL) || (buffer == NULL) || (length == 0)) + { + return (0); + } + + if ((session->request.content_length != 0) && (length > session->request.content_length)) + { + length = session->request.content_length; + } + + retval = httpsrv_read(session, buffer, length); + + if (retval > 0) + { + if (retval <= session->request.content_length) + { + session->request.content_length -= retval; + } + } + else + { + int optval; + socklen_t optlen = sizeof(optval); + + /* Timeout */ + if ((lwip_getsockopt(session->sock, SOL_SOCKET, SO_ERROR, &optval, &optlen) == 0) && (optval == EWOULDBLOCK)) + { + retval = 0; + } + } + session->time = sys_now(); + return (retval); +} + +/* +** Write data to client from server side include +** +** IN: +** uint32_t ses_handle - session foe writing +** char* data - user data to write +** uint32_t length - size of data in bytes +** +** OUT: +** none +** +** Return Value: +** uint32_t - Number of bytes written +*/ +uint32_t HTTPSRV_ssi_write(uint32_t ses_handle, char *data, uint32_t length) +{ + HTTPSRV_SESSION_STRUCT *session = (HTTPSRV_SESSION_STRUCT *)ses_handle; + uint32_t retval = 0; + + if ((session != NULL) && (data != NULL) && (length)) + { + retval = httpsrv_write(session, data, length); + } + + return (retval); +} diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv.h b/middleware/lwip/src/apps/httpsrv/httpsrv.h new file mode 100644 index 0000000..f736f29 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv.h @@ -0,0 +1,281 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* Header for HTTPSRV.*/ + +#ifndef _HTTPSRV_H_ +#define _HTTPSRV_H_ + +#include "httpsrv_config.h" + +#include "lwip/sockets.h" +#include "lwip/inet.h" +#include "httpsrv_fs.h" +#if HTTPSRV_CFG_WEBSOCKET_ENABLED +#include "httpsrv_ws.h" +#endif + +/* +** HTTP server return codes +*/ +#define HTTPSRV_OK 0 +#define HTTPSRV_ERR -1 +#define HTTPSRV_BIND_FAIL -2 +#define HTTPSRV_LISTEN_FAIL -3 +#define HTTPSRV_CREATE_FAIL -5 +#define HTTPSRV_BAD_FAMILY -6 +#define HTTPSRV_SOCKOPT_FAIL -7 +#define HTTPSRV_SES_INVALID -8 +#define HTTPSRV_FAIL -9 + +/* +** HTTP server status codes +*/ +#define HTTPSRV_CODE_CONTINUE (100) /* Continue */ +#define HTTPSRV_CODE_UPGRADE (101) /* Switching Protocols */ +#define HTTPSRV_CODE_OK (200) /* OK */ +#define HTTPSRV_CODE_CREATED (201) /* Created */ +#define HTTPSRV_CODE_ACCEPTED (202) /* Accepted */ +#define HTTPSRV_CODE_NON_AUTHORITATIVE (203) /* Non-Authoritative Information */ +#define HTTPSRV_CODE_NO_CONTENT (204) /* No Content */ +#define HTTPSRV_CODE_RESET_CONTENT (205) /* Reset Content */ +#define HTTPSRV_CODE_PARTIAL_CONTENT (206) /* Partial Content */ +#define HTTPSRV_CODE_MULTIPLE_CHOICES (300) /* Multiple Choices */ +#define HTTPSRV_CODE_MOVED_PERMANENTLY (301) /* Moved Permanently */ +#define HTTPSRV_CODE_FOUND (302) /* Found */ +#define HTTPSRV_CODE_SEE_OTHER (303) /* See Other */ +#define HTTPSRV_CODE_NOT_MODIFIED (304) /* Not Modified */ +#define HTTPSRV_CODE_USE_PROXY (305) /* Use Proxy */ +#define HTTPSRV_CODE_TEMPORARY_REDIRECT (307) /* Temporary Redirect */ +#define HTTPSRV_CODE_BAD_REQ (400) /* Bad Request */ +#define HTTPSRV_CODE_UNAUTHORIZED (401) /* Unauthorized */ +#define HTTPSRV_CODE_PAYMENT_REQUIRED (402) /* Payment Required */ +#define HTTPSRV_CODE_FORBIDDEN (403) /* Forbidden */ +#define HTTPSRV_CODE_NOT_FOUND (404) /* Not Found */ +#define HTTPSRV_CODE_METHOD_NOT_ALLOWED (405) /* Method Not Allowed */ +#define HTTPSRV_CODE_NOT_ACCEPTABLE (406) /* Not Acceptable */ +#define HTTPSRV_CODE_PROXY_AUTH_REQUIRED (407) /* Proxy Authentication Required */ +#define HTTPSRV_CODE_REQUEST_TIMEOUT (408) /* Request Time-out */ +#define HTTPSRV_CODE_CONFLICT (409) /* Conflict */ +#define HTTPSRV_CODE_GONE (410) /* Gone */ +#define HTTPSRV_CODE_NO_LENGTH (411) /* Length Required */ +#define HTTPSRV_CODE_PRECONDITION_FAILED (412) /* Precondition Failed */ +#define HTTPSRV_CODE_ENTITY_TOO_LARGE (413) /* Request Entity Too Large */ +#define HTTPSRV_CODE_URI_TOO_LONG (414) /* Request-URI Too Large */ +#define HTTPSRV_CODE_UNSUPPORTED_MEDIA (415) /* Unsupported Media Type */ +#define HTTPSRV_CODE_RANGE_NOT_SATISFIABLE (416) /* Requested range not satisfiable */ +#define HTTPSRV_CODE_EXPECTATION_FAILED (417) /* Expectation Failed */ +#define HTTPSRV_CODE_UPGRADE_REQUIRED (426) /* Upgrade Required */ +#define HTTPSRV_CODE_FIELD_TOO_LARGE (431) /* Request Header Fields Too Large */ +#define HTTPSRV_CODE_INTERNAL_ERROR (500) /* Internal Server Error */ +#define HTTPSRV_CODE_NOT_IMPLEMENTED (501) /* Not Implemented */ +#define HTTPSRV_CODE_BAD_GATEWAY (502) /* Bad Gateway */ +#define HTTPSRV_CODE_SERVICE_UNAVAILABLE (503) /* Service Unavailable */ +#define HTTPSRV_CODE_GATEWAY_TIMEOUT (504) /* Gateway Time-out */ +#define HTTPSRV_CODE_VERSION_NOT_SUPPORTED (505) /* HTTP Version not supported */ + +/* +** Authentication types +*/ +typedef enum httpstv_auth_type +{ + HTTPSRV_AUTH_INVALID, + HTTPSRV_AUTH_BASIC, + HTTPSRV_AUTH_DIGEST /* Not supported yet! */ +} HTTPSRV_AUTH_TYPE; + +/* + * HTTP request method type + */ +typedef enum httpsrv_req_method +{ + HTTPSRV_REQ_UNKNOWN, + HTTPSRV_REQ_GET, + HTTPSRV_REQ_POST, + HTTPSRV_REQ_HEAD +} HTTPSRV_REQ_METHOD; + +/* +* HTTP content type +*/ +typedef enum httpsrv_content_type +{ + HTTPSRV_CONTENT_TYPE_OCTETSTREAM = 1, + HTTPSRV_CONTENT_TYPE_PLAIN, + HTTPSRV_CONTENT_TYPE_HTML, + HTTPSRV_CONTENT_TYPE_CSS, + HTTPSRV_CONTENT_TYPE_GIF, + HTTPSRV_CONTENT_TYPE_JPG, + HTTPSRV_CONTENT_TYPE_PNG, + HTTPSRV_CONTENT_TYPE_SVG, + HTTPSRV_CONTENT_TYPE_JS, + HTTPSRV_CONTENT_TYPE_ZIP, + HTTPSRV_CONTENT_TYPE_XML, + HTTPSRV_CONTENT_TYPE_PDF, + HTTPSRV_CONTENT_TYPE_FORMURLENC, + HTTPSRV_CONTENT_TYPE_FORMDATA, +} HTTPSRV_CONTENT_TYPE; + +/* +** Authentication user structure +*/ +typedef struct httpsrv_auth_user_struct +{ + char *user_id; /* User ID - usually name*/ + char *password; /* Password */ +} HTTPSRV_AUTH_USER_STRUCT; + +/* +** Authentication realm structure +*/ +typedef struct httpsrv_auth_realm_struct +{ + const char *name; /* Name of realm. Send to client so user know which login/pass should be used. */ + const char *path; /* Path to file/directory to protect. Relative to root directory */ + const HTTPSRV_AUTH_TYPE auth_type; /* Authentication type to use. */ + const HTTPSRV_AUTH_USER_STRUCT *users; /* Table of allowed users. */ +} HTTPSRV_AUTH_REALM_STRUCT; + +/* +** CGI request structure. Contains variables specified in RFC3875 (The Common Gateway Interface (CGI) Version 1.1). +** Structure is extended by session handle. +*/ +typedef struct httpsrv_cgi_request_struct +{ + uint32_t ses_handle; /* Session handle required for various read/write operations*/ + /* + * Following is subset of variables from RFC3875. + ** Please see http://tools.ietf.org/html/rfc3875#section-4.1 for details + */ + HTTPSRV_REQ_METHOD request_method; /* Request method (GET, POST, HEAD) see HTTPSRV_REQ_METHOD enum */ + HTTPSRV_CONTENT_TYPE content_type; /* Content type */ + uint32_t content_length; /* Content length */ + uint32_t server_port; /* Local connection port */ + char *remote_addr; /* Remote client address */ + char *server_name; /* Server hostname/IP */ + char *script_name; /* CGI name */ + char *server_protocol; /* Server protocol name and version (HTTP/1.0) */ + char *server_software; /* Server software identification string */ + char *query_string; /* Request query string */ + char *gateway_interface; /* Gateway interface type and version (CGI/1.1)*/ + char *remote_user; /* Remote user name */ + HTTPSRV_AUTH_TYPE auth_type; /* Auth type */ +} HTTPSRV_CGI_REQ_STRUCT; + +/* +** CGI response struct. This structure is filled by CGI function. +*/ +typedef struct httpsrv_cgi_response_struct +{ + uint32_t ses_handle; /* Session handle for reading/writing */ + HTTPSRV_CONTENT_TYPE content_type; /* Response content type */ + int32_t content_length; /* Response content length */ + uint32_t status_code; /* Status code (200, 404, etc.)*/ + char *data; /* Pointer to data to write */ + uint32_t data_length; /* Length of data in bytes */ +} HTTPSRV_CGI_RES_STRUCT; + +/* +** Server side include parameter structure. +** Passed to user SSI function. +*/ +typedef struct httpsrv_ssi_param_struct +{ + uint32_t ses_handle; /* Session handle for reading/writing */ + char *com_param; /* Server side include command parameter (separated from command by ":") */ +} HTTPSRV_SSI_PARAM_STRUCT; + +/* +** Server side include callback prototype +*/ +typedef int (*HTTPSRV_SSI_CALLBACK_FN)(HTTPSRV_SSI_PARAM_STRUCT *param); + +/* +** SSI callback link structure +*/ +typedef struct httpsrv_ssi_link_struct +{ + char *fn_name; /* Function name */ + HTTPSRV_SSI_CALLBACK_FN callback; /* Pointer to user function */ +} HTTPSRV_SSI_LINK_STRUCT; + +/* +** CGI callback prototype +*/ +typedef int (*HTTPSRV_CGI_CALLBACK_FN)(HTTPSRV_CGI_REQ_STRUCT *param); + +/* +** CGI callback link structure +*/ +typedef struct httpsrv_cgi_link_struct +{ + char *fn_name; /* Function name */ + HTTPSRV_CGI_CALLBACK_FN callback; /* Pointer to user function */ +} HTTPSRV_CGI_LINK_STRUCT; + +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE +/* +** HTTP server TLS parameters +*/ +typedef struct httpsrv_tls_param_struct +{ + const unsigned char* certificate_buffer; + unsigned long certificate_buffer_size; + const unsigned char* private_key_buffer; + unsigned long private_key_buffer_size; +} HTTPSRV_TLS_PARAM_STRUCT; +#endif + +/* +** HTTP server parameters +*/ +typedef struct httpsrv_param_struct +{ + struct sockaddr address; /* Server address.*/ + const char *root_dir; /* root directory */ + const char *index_page; /* index page full path and name */ + uint32_t max_uri; /* maximal URI length */ + uint32_t max_ses; /* maximal sessions count */ + uint32_t task_prio; /* server task priority */ + const HTTPSRV_CGI_LINK_STRUCT *cgi_lnk_tbl; /* cgi callback table. It is optional. */ + const HTTPSRV_SSI_LINK_STRUCT *ssi_lnk_tbl; /* function callback table (dynamic web pages). It is optional. */ + const HTTPSRV_AUTH_REALM_STRUCT *auth_table; /* Table of authentication realms. It is optional. */ +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + const WS_PLUGIN_STRUCT *ws_tbl; /* Table of WS plugins. It is optional. */ +#endif +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + const HTTPSRV_TLS_PARAM_STRUCT *tls_param; /* TLS parameters. It is optional. */ +#endif +} HTTPSRV_PARAM_STRUCT; + +#ifdef __cplusplus +extern "C" { +#endif + +/* +** Initialize and run HTTP server +** Returns server handle when successful, zero otherwise. +*/ +uint32_t HTTPSRV_init(HTTPSRV_PARAM_STRUCT *params); + +/* +** Stop and release HTTP server +** Returns HTTPSRV_OK when successful, HTTPSRV_ERR otherwise. +*/ +void HTTPSRV_release(uint32_t server_h); + +uint32_t HTTPSRV_cgi_write(HTTPSRV_CGI_RES_STRUCT *response); +uint32_t HTTPSRV_cgi_read(uint32_t ses_handle, char *buffer, uint32_t length); +uint32_t HTTPSRV_ssi_write(uint32_t ses_handle, char *data, uint32_t length); + +#ifdef __cplusplus +} +#endif + +#endif /* _HTTPSRV_H_ */ diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_base64.c b/middleware/lwip/src/apps/httpsrv/httpsrv_base64.c new file mode 100644 index 0000000..602ecc1 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_base64.c @@ -0,0 +1,190 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include "httpsrv_base64.h" + +#include + +static void base64_encodeblock(unsigned char in[3], unsigned char out[4], int len); +static void base64_decodeblock(char in[4], char out[3]); +/* +** base64 decoding alphabet +*/ +static const char decode_base64[] = "n###odefghijklm#######0123456789:;<=>?@ABCDEFGHI######JKLMNOPQRSTUVWXYZ[\\]^_`abc"; + +#define DECODE_BASE64_IDX(ch) (decode_base64[ch - 43] - '0') + +/* +** Translation Table as described in RFC1113 +*/ +static const char cb64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + +/* +** base64_encodeblock +** +** encode 3 8-bit binary bytes as 4 '6-bit' characters +*/ +static void base64_encodeblock(unsigned char in[3], unsigned char out[4], int len) +{ + out[0] = (unsigned char)cb64[(int)(in[0] >> 2)]; + out[1] = (unsigned char)cb64[(int)(((in[0] & 0x03) << 4) | ((in[1] & 0xf0) >> 4))]; + out[2] = (unsigned char)(len > 1 ? cb64[(int)(((in[1] & 0x0f) << 2) | ((in[2] & 0xc0) >> 6))] : '='); + out[3] = (unsigned char)(len > 2 ? cb64[(int)(in[2] & 0x3f)] : '='); +} + +char *base64_encode(char *source, char *destination) +{ + unsigned char in[3], out[4]; + int i, n, p, len; + i = 0; + n = 0; + p = 0; + + *destination = '\0'; + + while (source[n] != '\0') + { + len = 0; + for (i = 0; i < 3; i++) + { + in[i] = 0; + if (source[n] != '\0') + { + in[i] = source[n++]; + len++; + } + } + + if (len) + { + base64_encodeblock(in, out, len); + for (i = 0; i < 4; i++) + { + destination[p++] = out[i]; + } + } + } + + destination[p] = '\0'; + return destination; +} + +char *base64_encode_binary(char *source, char *destination, uint32_t length) +{ + unsigned char in[3], out[4]; + int i, n, p, len; + i = 0; + n = 0; + p = 0; + + *destination = '\0'; + + while (n < length) + { + len = 0; + for (i = 0; i < 3; i++) + { + in[i] = 0; + if (n != length) + { + in[i] = source[n++]; + len++; + } + } + + if (len > 0) + { + base64_encodeblock(in, out, len); + for (i = 0; i < 4; i++) + { + destination[p++] = out[i]; + } + } + } + + destination[p] = '\0'; + return destination; +} + +/** Decode base64 single block (4 char string). + * \param in < 4 char input buffer + * \param out < 3 char output buffer + */ +static void base64_decodeblock(char in[4], char out[3]) +{ + out[0] = (unsigned char)(in[0] << 2 | in[1] >> 4); + out[1] = (unsigned char)(in[1] << 4 | in[2] >> 2); + out[2] = (unsigned char)(((in[2] << 6) & 0xc0) | in[3]); +} + +char *base64_decode(char *dst, char *src, uint32_t dst_size) +{ + char in[4]; + int i, len; + uint32_t free_size = dst_size; + + while (*src && free_size) + { + for (i = 0, len = 0; i < 4; i++) + { + if (*src) + { + if (!(*src < 43 || *src > 122) && *src != '=') + { + len++; + in[i] = (unsigned char)DECODE_BASE64_IDX(*src); + } + else + { + in[i] = 0; + } + src++; + } + else + { + in[i] = 0; + } + } + + if ((len > 1) && (free_size > (len - 1))) + { + base64_decodeblock(in, dst); + dst += len - 1; + *dst = '\0'; + free_size -= (len - 1); + } + else + { + break; + } + } + return dst; +} + +/* + * Check if string is base64 encoded + */ +bool isbase64(const char *string) +{ + uint32_t i; + uint32_t length; + + length = strlen(string); + for (i = 0; i < length; i++) + { + if (memchr(cb64, (int)string[i], 64) == NULL) + { + if ((string[i] == '=') && ((string[i + 1] != '\0') && ((string[i + 1] == '=') && (string[i + 2] != '\0')))) + { + break; + } + } + } + return ((string[i] == '\0') ? true : false); +} diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_base64.h b/middleware/lwip/src/apps/httpsrv/httpsrv_base64.h new file mode 100644 index 0000000..3159b60 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_base64.h @@ -0,0 +1,29 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* +* Base64 encode and decode header. +*/ +#ifndef __httpsrv_base64_h__ +#define __httpsrv_base64_h__ + +#include "lwip/inet.h" +#ifdef __cplusplus +extern "C" { +#endif + +char *base64_encode(char *source, char *destination); +char *base64_decode(char *dst, char *src, uint32_t dst_size); +char *base64_encode_binary(char *source, char *destination, uint32_t length); +bool isbase64(const char *string); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_config.h b/middleware/lwip/src/apps/httpsrv/httpsrv_config.h new file mode 100644 index 0000000..9416dd3 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_config.h @@ -0,0 +1,123 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 - 2019 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* Default configuration for HTTPSRV.*/ + +#ifndef _HTTPSRV_CONFIG_H_ +#define _HTTPSRV_CONFIG_H_ + +/* Configuration parameters.*/ + +/* Listener task stack size */ +#ifndef HTTPSRV_CFG_SERVER_STACK_SIZE +#define HTTPSRV_CFG_SERVER_STACK_SIZE (4000 / sizeof(uint32_t)) +#endif + +/* HTTP task stack size.*/ +#ifndef HTTPSRV_CFG_HTTP_SESSION_STACK_SIZE +#define HTTPSRV_CFG_HTTP_SESSION_STACK_SIZE (4000 / sizeof(uint32_t)) +#endif + +/* HTTPS task stack size.*/ +#ifndef HTTPSRV_CFG_HTTPS_SESSION_STACK_SIZE +#define HTTPSRV_CFG_HTTPS_SESSION_STACK_SIZE (10000 / sizeof(uint32_t)) +#endif + +/* Task priority.*/ +#ifndef HTTPSRV_CFG_DEFAULT_PRIORITY +#define HTTPSRV_CFG_DEFAULT_PRIORITY DEFAULT_THREAD_PRIO +#endif + +/* Default HTTP port */ +#ifndef HTTPSRV_CFG_DEFAULT_HTTP_PORT +#define HTTPSRV_CFG_DEFAULT_HTTP_PORT (80) +#endif + +/* Default HTTPS port */ +#ifndef HTTPSRV_CFG_DEFAULT_HTTPS_PORT +#define HTTPSRV_CFG_DEFAULT_HTTPS_PORT (443) +#endif + +#ifndef HTTPSRV_CFG_DEFAULT_INDEX_PAGE +#define HTTPSRV_CFG_DEFAULT_INDEX_PAGE "index.html" +#endif + +/* Number of seconds for caching */ +#ifndef HTTPSRV_CFG_CACHE_MAXAGE +#define HTTPSRV_CFG_CACHE_MAXAGE (3600) +#endif + +/* Default sessions count */ +#ifndef HTTPSRV_CFG_DEFAULT_SES_CNT +#define HTTPSRV_CFG_DEFAULT_SES_CNT (2) +#endif + +/* Session buffer size */ +#ifndef HTTPSRV_CFG_SES_BUFFER_SIZE +#define HTTPSRV_CFG_SES_BUFFER_SIZE (1360) +#endif +#if HTTPSRV_CFG_SES_BUFFER_SIZE < 512 +#undef HTTPSRV_CFG_SES_BUFFER_SIZE +#define HTTPSRV_CFG_SES_BUFFER_SIZE (512) +#endif + +/* Maximal URL length */ +#ifndef HTTPSRV_CFG_DEFAULT_URL_LEN +#define HTTPSRV_CFG_DEFAULT_URL_LEN (128) +#endif + +/* Maximal length for script line */ +#ifndef HTTPSRV_CFG_MAX_SCRIPT_LN +#define HTTPSRV_CFG_MAX_SCRIPT_LN (32) +#endif + +#ifndef HTTPSRV_CFG_KEEPALIVE_ENABLED +#define HTTPSRV_CFG_KEEPALIVE_ENABLED (0) +#endif + +/* Session keep-alive timeout in milliseconds */ +#ifndef HTTPSRV_CFG_KEEPALIVE_TIMEOUT +#define HTTPSRV_CFG_KEEPALIVE_TIMEOUT (200) +#endif + +/* Session timeout in milliseconds */ +#ifndef HTTPSRV_CFG_SES_TIMEOUT +#define HTTPSRV_CFG_SES_TIMEOUT (20000) +#endif + +/* Socket OPT_SEND_TIMEOUT option value */ +#ifndef HTTPSRV_CFG_SEND_TIMEOUT +#define HTTPSRV_CFG_SEND_TIMEOUT (500) +#endif + +/* Socket OPT_RECEIVE_TIMEOUT option value */ +#ifndef HTTPSRV_CFG_RECEIVE_TIMEOUT +#define HTTPSRV_CFG_RECEIVE_TIMEOUT (50) +#endif + +/* WebSocket protocol support */ +#ifndef HTTPSRV_CFG_WEBSOCKET_ENABLED +#define HTTPSRV_CFG_WEBSOCKET_ENABLED (0) +#endif + +/* WolfSSL support (TBD Under development - not working yet).*/ +#ifndef HTTPSRV_CFG_WOLFSSL_ENABLE +#define HTTPSRV_CFG_WOLFSSL_ENABLE (0) +#endif + +/* MbedTLS support (TBD Under development - not working yet).*/ +#ifndef HTTPSRV_CFG_MBEDTLS_ENABLE +#define HTTPSRV_CFG_MBEDTLS_ENABLE (0) +#endif + +#if HTTPSRV_CFG_WOLFSSL_ENABLE && HTTPSRV_CFG_MBEDTLS_ENABLE +#error You may not enable both WolfSSL and MbedTLS simultaneously +#endif + +#endif /* _HTTPSRV_CONFIG_H_ */ diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_fs.c b/middleware/lwip/src/apps/httpsrv/httpsrv_fs.c new file mode 100644 index 0000000..5837f49 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_fs.c @@ -0,0 +1,434 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* +* Comments: +* +* This file contains the functions that are used to initialize FS +* It also contains the FS driver functions. +*/ +#include "httpsrv_fs.h" +#include "httpsrv_port.h" + +static int32_t httpsrv_fs_cmp(char *, char *); +static const HTTPSRV_FS_DIR_ENTRY *httpsrv_fs_open_file(char *, int32_t *); +static uint32_t httpsrv_fs_read(HTTPSRV_FS_FILE_PTR, uint32_t, char *, int32_t *); +static uint32_t httpsrv_fs_move_file_pointer(HTTPSRV_FS_FILE_PTR, int32_t *); + +const HTTPSRV_FS_DIR_ENTRY *ROOT; + +/*FUNCTION*------------------------------------------------------------------- +* +* Function Name : HTTPSRV_FS_init +* Returned Value : HTTPSRV_FS error code. +* Comments : Initialize the Trivial File System. +* +*END*---------------------------------------------------------------------*/ + +void HTTPSRV_FS_init( + /*[IN] pointer to the first entry of the root HTTPSRV_FS directory */ + const HTTPSRV_FS_DIR_ENTRY *root) +{ + ROOT = root; +} + +/*FUNCTION*------------------------------------------------------------------- +* +* Function Name : HTTPSRV_FS_open +* Returned Value : HTTPSRV_FS error code. +* Comments : Opens HTTPSRV_FS driver and initializes given file descriptor. +* +*END*----------------------------------------------------------------------*/ + +HTTPSRV_FS_FILE_PTR HTTPSRV_FS_open( + /* [IN] the remaining portion of the name of the device */ + char *open_name_ptr) +{ + int32_t error_code = HTTPSRV_FS_OK; + HTTPSRV_FS_FILE_PTR fd_ptr = NULL; /* the file handle for the device being opened */ + const HTTPSRV_FS_DIR_ENTRY *entry = NULL; + + if (open_name_ptr && (*open_name_ptr != '\0')) + { + entry = httpsrv_fs_open_file(open_name_ptr, &error_code); + if (entry && (error_code == HTTPSRV_FS_OK)) + { + fd_ptr = httpsrv_mem_alloc(sizeof(HTTPSRV_FS_FILE)); + + if (fd_ptr) + { + /* Initialise the file information fields */ + fd_ptr->DEV_DATA_PTR = entry; + fd_ptr->LOCATION = 0; + fd_ptr->ERROR = 0; + fd_ptr->SIZE = ((HTTPSRV_FS_DIR_ENTRY_PTR)fd_ptr->DEV_DATA_PTR)->SIZE; + } + } + } + return fd_ptr; +} + +/*FUNCTION*------------------------------------------------------------------- +* +* Function Name : HTTPSRV_FS_close +* Returned Value : HTTPSRV_FS error code. +* Comments : Closes given file descriptor. +* +*END*----------------------------------------------------------------------*/ + +void HTTPSRV_FS_close( + /* [IN/OUT] the file handle for the device being closed */ + HTTPSRV_FS_FILE_PTR fd_ptr) +{ + if (fd_ptr) + { + fd_ptr->DEV_DATA_PTR = NULL; + httpsrv_mem_free(fd_ptr); + } +} + +/*FUNCTION*------------------------------------------------------------------- +* +* Function Name : HTTPSRV_FS_read +* Returned Value : Number of characters read. +* Comments : Reads data from given file. +* +*END*----------------------------------------------------------------------*/ + +int32_t HTTPSRV_FS_read( + /* [IN/OUT] the stream to perform the operation on */ + HTTPSRV_FS_FILE_PTR file_ptr, + + /* [IN] the data location to write to */ + char *data_ptr, + + /* [IN] the number of bytes to read */ + int32_t num) +{ + uint32_t bytes_read; + int32_t error_code = HTTPSRV_FS_OK; + int32_t ret; + + bytes_read = httpsrv_fs_read(file_ptr, num, data_ptr, &error_code); + + if (error_code != HTTPSRV_FS_OK) + { + file_ptr->ERROR = error_code; + ret = error_code; + } + else + { + ret = (int32_t)bytes_read; + } + return (ret); +} + +int32_t HTTPSRV_FS_fseek(HTTPSRV_FS_FILE_PTR file_ptr, int32_t offset, uint32_t mode) +{ + int32_t result; + int32_t location; + + if (file_ptr == NULL) + { + return (HTTPSRV_FS_ERROR); + } + + /* Otherwise use common implementation of seek */ + switch (mode) + { + case HTTPSRV_FS_IO_SEEK_SET: + if (0 > offset) + { + location = -1; + } + else + { + location = offset; + } + break; + case HTTPSRV_FS_IO_SEEK_CUR: + if ((offset >= 0 && ((UINT64_MAX - file_ptr->LOCATION) < offset)) || + (offset < 0 && (file_ptr->LOCATION < -offset))) + { + location = -1; + } + else + { + location = file_ptr->LOCATION + offset; + } + break; + case HTTPSRV_FS_IO_SEEK_END: + if ((offset >= 0 && ((UINT64_MAX - file_ptr->SIZE) < offset)) || (offset < 0 && (file_ptr->SIZE < -offset))) + { + location = -1; + } + else + { + location = file_ptr->SIZE + offset; + } + break; + default: + location = -1; /* Set location to negative value to induce IO_ERROR */ + } + + /* Check for overflow/underflow */ + if (location < 0) + { + result = HTTPSRV_FS_ERROR; + } + else + { + file_ptr->LOCATION = location; + + httpsrv_fs_move_file_pointer(file_ptr, &result); + + result = HTTPSRV_FS_OK; + } + + return result; +} + +/*FUNCTION*------------------------------------------------------------------- +* +* Function Name : HTTPSRV_FS_ioctl +* Returned Value : HTTPSRV_FS error code. +* Comments : Performs specified operation related to given file. +* +*END*----------------------------------------------------------------------*/ + +int32_t HTTPSRV_FS_ioctl( + /* [IN] the stream to perform the operation on */ + HTTPSRV_FS_FILE_PTR file_ptr, + + /* [IN] the ioctl command */ + uint32_t cmd, + + /* [IN/OUT] the ioctl parameters */ + void *param_ptr) +{ + int32_t error_code = HTTPSRV_FS_OK; + + switch (cmd) + { + case IO_IOCTL_HTTPSRV_FS_GET_NAME: + if (file_ptr->DEV_DATA_PTR == NULL) + { + error_code = HTTPSRV_FS_ERROR_INVALID_FILE_HANDLE; + } + else + { + *((char **)param_ptr) = ((HTTPSRV_FS_DIR_ENTRY_PTR)file_ptr->DEV_DATA_PTR)->NAME; + } + break; + case IO_IOCTL_HTTPSRV_FS_GET_ATTRIBUTES: + if (file_ptr->DEV_DATA_PTR == NULL) + { + error_code = HTTPSRV_FS_ERROR_INVALID_FILE_HANDLE; + } + else + { + *((uint32_t *)param_ptr) = ((HTTPSRV_FS_DIR_ENTRY_PTR)file_ptr->DEV_DATA_PTR)->FLAGS; + } + break; + case IO_IOCTL_HTTPSRV_FS_GET_LENGTH: + if (file_ptr->DEV_DATA_PTR == NULL) + { + error_code = HTTPSRV_FS_ERROR_INVALID_FILE_HANDLE; + } + else + { + *((uint32_t *)param_ptr) = file_ptr->SIZE; + } + break; + case IO_IOCTL_HTTPSRV_FS_GET_CURRENT_DATA_PTR: + if (file_ptr->DEV_DATA_PTR == NULL) + { + error_code = HTTPSRV_FS_ERROR_INVALID_FILE_HANDLE; + } + else + { + *((unsigned char **)param_ptr) = + ((HTTPSRV_FS_DIR_ENTRY_PTR)file_ptr->DEV_DATA_PTR)->DATA + file_ptr->LOCATION; + } + break; + case IO_IOCTL_HTTPSRV_FS_GET_LAST_ERROR: + error_code = file_ptr->ERROR; + break; + default: + error_code = HTTPSRV_FS_ERROR_INVALID_IOCTL_CMD; + break; + } + + return (error_code); +} + +/*FUNCTION*------------------------------------------------------------------- +* +* Function Name : httpsrv_fs_cmp +* Returned Value : -1, 0, 1 depending on path1 <, ==, > path2. +* Comments : Compares file paths. Not case sensitive. Both delimiters +* '/' and '\' supported. +* +*END*---------------------------------------------------------------------*/ + +static int32_t httpsrv_fs_cmp( + /* [IN] first file path to compare */ + char *path1, + + /* [IN] second file path to compare */ + char *path2) +{ /* Body */ + uint32_t ch1, ch2; + + if (path1 == path2) + return 0; + if (path1 == NULL) + return -1; + if (path2 == NULL) + return 1; + do + { + ch1 = *path1++; + ch2 = *path2++; + if (ch1 == '\\') + ch1 = '/'; + if ((uint32_t)(ch1 - 'a') <= (uint32_t)('z' - 'a')) + ch1 = ch1 - 'a' + 'A'; + if (ch2 == '\\') + ch2 = '/'; + if ((uint32_t)(ch2 - 'a') <= (uint32_t)('z' - 'a')) + ch2 = ch2 - 'a' + 'A'; + if ((ch1 == '\0') || (ch2 == '\0')) + return (int32_t)(ch1 - ch2); + } while (ch1 == ch2); + return (int32_t)(ch1 - ch2); +} + +/*FUNCTION*------------------------------------------------------------------- +* +* Function Name : httpsrv_fs_open_file +* Returned Value : Pointer to HTTPSRV_FS directory entry or NULL. +* Comments : Searches for specified file and returns directory entry. +* +*END*---------------------------------------------------------------------*/ + +static const HTTPSRV_FS_DIR_ENTRY *httpsrv_fs_open_file( + /* [IN] HTTPSRV_FS IO drive information */ + /*HTTPSRV_FS_DRIVE_STRUCT_PTR drive_ptr,*/ + + /* [IN] file path */ + char *pathname, + + /* [OUT] error result */ + int32_t *error_ptr) +{ + const HTTPSRV_FS_DIR_ENTRY *entry; + + if (/*(drive_ptr == NULL) ||*/ (pathname == NULL) || (*pathname == '\0')) + { + *error_ptr = HTTPSRV_FS_INVALID_PARAMETER; + return NULL; + } + *error_ptr = HTTPSRV_FS_FILE_NOT_FOUND; + entry = /* (HTTPSRV_FS_DIR_ENTRY_PTR)drive_ptr-> */ ROOT; + while (entry->NAME != NULL) + { + if (httpsrv_fs_cmp(entry->NAME, pathname) == 0) + { + *error_ptr = HTTPSRV_FS_OK; + return entry; + } + entry++; + } + return NULL; +} + +/*FUNCTION*------------------------------------------------------------------- +* +* Function Name : httpsrv_fs_read +* Returned Value : Number of bytes actually read. +* Comments : Reads given file and stores data into the given buffer. +* +*END*---------------------------------------------------------------------*/ + +static uint32_t httpsrv_fs_read( + /* [IN/OUT] file to read from */ + HTTPSRV_FS_FILE_PTR file_fd_ptr, + + /* [IN] number of bytes to read */ + uint32_t num_bytes, + + /* [OUT] buffer to write the data to */ + char *buffer_address, + + /* [OUT] error information */ + int32_t *error_ptr) +{ + uint32_t i; + unsigned char *data; + + *error_ptr = HTTPSRV_FS_OK; + if (file_fd_ptr->DEV_DATA_PTR == NULL) + { + *error_ptr = HTTPSRV_FS_ERROR_INVALID_FILE_HANDLE; + return 0; + } + if (file_fd_ptr->LOCATION >= file_fd_ptr->SIZE) + { + *error_ptr = HTTPSRV_FS_EOF; + return 0; + } + if (num_bytes > file_fd_ptr->SIZE - file_fd_ptr->LOCATION) + { + num_bytes = file_fd_ptr->SIZE - file_fd_ptr->LOCATION; + } + data = ((HTTPSRV_FS_DIR_ENTRY_PTR)file_fd_ptr->DEV_DATA_PTR)->DATA + file_fd_ptr->LOCATION; + for (i = num_bytes; i != 0; i--) + *buffer_address++ = *data++; + file_fd_ptr->LOCATION += num_bytes; + return num_bytes; +} + +/*FUNCTION*------------------------------------------------------------------- +* +* Function Name : httpsrv_fs_move_file_pointer +* Returned Value : New file location. +* Comments : Performs seek within given file. +* +*END*---------------------------------------------------------------------*/ + +static uint32_t httpsrv_fs_move_file_pointer( + /* [IN/OUT] file to seek within */ + HTTPSRV_FS_FILE_PTR file_fd_ptr, + + /* [OUT] error information */ + int32_t *error_ptr) +{ + *error_ptr = HTTPSRV_FS_OK; + if (file_fd_ptr->DEV_DATA_PTR == NULL) + { + *error_ptr = HTTPSRV_FS_ERROR_INVALID_FILE_HANDLE; + return 0; + } + if (file_fd_ptr->LOCATION > file_fd_ptr->SIZE) + { + *error_ptr = HTTPSRV_FS_EOF; + file_fd_ptr->LOCATION = file_fd_ptr->SIZE; + } + return (file_fd_ptr->LOCATION); +} + +size_t HTTPSRV_FS_size(HTTPSRV_FS_FILE_PTR file_fd_ptr) +{ + size_t size = 0; + if (file_fd_ptr) + { + size = file_fd_ptr->SIZE; + } + return size; +} diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_fs.h b/middleware/lwip/src/apps/httpsrv/httpsrv_fs.h new file mode 100644 index 0000000..60b3d32 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_fs.h @@ -0,0 +1,141 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef __httpsrv_fs_h__ +#define __httpsrv_fs_h__ + +#include +#include +#include + +/* +** Defines specific to HTTPSRV_FS +*/ + +#define HTTPSRV_FS_VERSION 1 + +#define HTTPSRV_FS_FLAG_INDEX 1 +#define HTTPSRV_FS_FLAG_AUTH 2 + +/* +** error codes +*/ +#define HTTPSRV_FS_OK 0 +#define HTTPSRV_FS_ERROR -1 + +#define HTTPSRV_FS_INVALID_FUNCTION_CODE -1 +#define HTTPSRV_FS_FILE_NOT_FOUND -2 +#define HTTPSRV_FS_PATH_NOT_FOUND -3 +#define HTTPSRV_FS_ACCESS_DENIED -4 +#define HTTPSRV_FS_INVALID_HANDLE -5 +#define HTTPSRV_FS_INSUFFICIENT_MEMORY -6 +#define HTTPSRV_FS_INVALID_MEMORY_BLOCK_ADDRESS -7 +#define HTTPSRV_FS_ATTEMPT_TO_REMOVE_CURRENT_DIR -8 +#define HTTPSRV_FS_DISK_IS_WRITE_PROTECTED -9 +#define HTTPSRV_FS_BAD_DISK_UNIT -10 +#define HTTPSRV_FS_INVALID_LENGTH_IN_DISK_OPERATION -11 +#define HTTPSRV_FS_NOT_A_DOS_DISK -12 +#define HTTPSRV_FS_SECTOR_NOT_FOUND -13 +#define HTTPSRV_FS_WRITE_FAULT -14 +#define HTTPSRV_FS_READ_FAULT -15 +#define HTTPSRV_FS_SHARING_VIOLATION -16 +#define HTTPSRV_FS_FILE_EXISTS -17 +#define HTTPSRV_FS_ALREADY_ASSIGNED -18 +#define HTTPSRV_FS_INVALID_PARAMETER -16 +#define HTTPSRV_FS_DISK_FULL -17 +#define HTTPSRV_FS_ROOT_DIR_FULL -18 +#define HTTPSRV_FS_EOF -19 +#define HTTPSRV_FS_CANNOT_CREATE_DIRECTORY -20 +#define HTTPSRV_FS_NOT_INITIALIZED -21 +#define HTTPSRV_FS_OPERATION_NOT_ALLOWED -22 +#define HTTPSRV_FS_ERROR_INVALID_DRIVE_HANDLE -23 +#define HTTPSRV_FS_ERROR_INVALID_FILE_HANDLE -24 +#define HTTPSRV_FS_ERROR_UNKNOWN_FS_VERSION -25 +#define HTTPSRV_FS_LOST_CHAIN -26 +#define HTTPSRV_FS_INVALID_DEVICE -27 +#define HTTPSRV_FS_INVALID_CLUSTER_NUMBER -28 +#define HTTPSRV_FS_FAILED_TO_DELETE_LFN -29 +#define HTTPSRV_FS_BAD_LFN_ENTRY -30 +#define HTTPSRV_FS_ERROR_INVALID_IOCTL_CMD -31 +/* +** Extra IO_IOCTL codes +*/ +#define IO_IOCTL_HTTPSRV_FS_GET_NAME (0x01) +#define IO_IOCTL_HTTPSRV_FS_GET_ATTRIBUTES (0x02) +#define IO_IOCTL_HTTPSRV_FS_GET_LENGTH (0x03) +#define IO_IOCTL_HTTPSRV_FS_GET_LAST_ERROR (0x04) +#define IO_IOCTL_HTTPSRV_FS_GET_CURRENT_DATA_PTR (0x05) + +#define IO_IOCTL_HTTPSRV_FS_SEEK (0x06) + +/* + * Seek parameters + */ +#define HTTPSRV_FS_IO_SEEK_SET (1) /* Seek from start */ +#define HTTPSRV_FS_IO_SEEK_CUR (2) /* Seek from current location */ +#define HTTPSRV_FS_IO_SEEK_END (3) /* Seek from end */ + +/* +** HTTP_SRV directory entry information +*/ +typedef struct httpsrv_fs_dir_entry +{ + char *NAME; + uint32_t FLAGS; + unsigned char *DATA; + uint32_t SIZE; +} HTTPSRV_FS_DIR_ENTRY, *HTTPSRV_FS_DIR_ENTRY_PTR; + +/* FILE STRUCTURE */ + +/*! + * \brief This structure defines the information kept in order to implement ANSI + * 'C' standard I/O stream. + */ +typedef struct httpsrv_fs_file +{ + /*! \brief Device Driver specific information. */ + const HTTPSRV_FS_DIR_ENTRY *DEV_DATA_PTR; + + /*! \brief The current error for this stream. */ + int32_t ERROR; + + /*! \brief The current position in the stream. */ + size_t LOCATION; + + /*! \brief The current size of the file. */ + size_t SIZE; +} HTTPSRV_FS_FILE, *HTTPSRV_FS_FILE_PTR; + +#ifdef __cplusplus +extern "C" { +#endif + +void HTTPSRV_FS_init(const HTTPSRV_FS_DIR_ENTRY *); +HTTPSRV_FS_FILE_PTR HTTPSRV_FS_open(char *); +void HTTPSRV_FS_close(HTTPSRV_FS_FILE_PTR); +int32_t HTTPSRV_FS_read(HTTPSRV_FS_FILE_PTR, char *, int32_t); +size_t HTTPSRV_FS_size(HTTPSRV_FS_FILE_PTR); +int32_t HTTPSRV_FS_ioctl(HTTPSRV_FS_FILE_PTR, uint32_t, void *); +/*! + * \brief This function sets the current file position. + * + * \param[in] file_ptr The stream to use. + * \param[in] offset The offset for the seek. + * \param[in] mode Mode to determine where to start the seek from. + * + * \return HTTPSRV_FS_OK + * \return HTTPSRV_FS_ERROR (Failure.) + */ +int32_t HTTPSRV_FS_fseek(HTTPSRV_FS_FILE_PTR file_ptr, int32_t offset, uint32_t mode); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_port.h b/middleware/lwip/src/apps/httpsrv/httpsrv_port.h new file mode 100644 index 0000000..267a361 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_port.h @@ -0,0 +1,17 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef __httpsrv_port_h__ +#define __httpsrv_port_h__ + +#include "FreeRTOS.h" + +#define httpsrv_mem_alloc(x) pvPortMalloc(x) +#define httpsrv_mem_free(x) vPortFree(x) + +#endif diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_prv.h b/middleware/lwip/src/apps/httpsrv/httpsrv_prv.h new file mode 100644 index 0000000..3eddd62 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_prv.h @@ -0,0 +1,240 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef HTTPSRV_PRV_H_ +#define HTTPSRV_PRV_H_ + +#include "httpsrv.h" +#include "httpsrv_port.h" +#include "httpsrv_fs.h" +#include "httpsrv_ws_prv.h" +#include "httpsrv_tls.h" + +#include + +#include "lwip/sys.h" + +#define HTTPSRV_PRODUCT_STRING "HTTPSRV/0.1 - NXP Embedded Web Server v0.1" +#define HTTPSRV_PROTOCOL_STRING "HTTP/1.1" +#define HTTPSRV_CGI_VERSION_STRING "CGI/1.1" +#define HTTPSRV_VALID (1) +#define HTTPSRV_INVALID (0) +#define HTTPSRV_SES_BUF_SIZE_PRV (HTTPSRV_CFG_SES_BUFFER_SIZE) +#define HTTPSRV_TMP_BUFFER_SIZE (128) +#define HTTPSRV_PLUGIN_NUM_MESSAGES (5) + +#define HTTPSRV_FLAG_PROCESS_HEADER (1 << 0) /* Flag for indication of header processing */ +#define HTTPSRV_FLAG_HAS_HOST (1 << 1) /* Flag determining if request header has "host" field */ +#define HTTPSRV_FLAG_DO_UPGRADE (1 << 2) /* Flag indicating if client requested connection upgrade. */ +#define HTTPSRV_FLAG_IS_CACHEABLE (1 << 3) /* Determines if response is cacheable */ +#define HTTPSRV_FLAG_IS_TRANSCODED (1 << 4) /* Transcoding flag */ +#define HTTPSRV_FLAG_IS_KEEP_ALIVE (1 << 5) /* Keep-alive status for the session */ +#define HTTPSRV_FLAG_KEEP_ALIVE_ENABLED (1 << 6) /* Keep-alive enabled/disabled for session */ +#define HTTPSRV_FLAG_HAS_CONTENT_LENGTH (1 << 7) /* Flag signalizing presence of Content-Length in request. */ +#define HTTPSRV_FLAG_HEADER_SENT (1 << 8) /* Flag signalizing if response header was sent. */ + +/* +** Wildcard typedef for CGI/SSI callback prototype +*/ +typedef int32_t (*HTTPSRV_FN_CALLBACK)(void *param); + +/* + * Plugin callbacks prototypes + */ +typedef void *(*HTTPSRV_PLUGIN_CREATE_FUNC)(void *message); +typedef void (*HTTPSRV_PLUGIN_DESTROY_FUNC)(void *plugin_context); +typedef void (*HTTPSRV_PLUGIN_WAIT_FUNC)(void *plugin_context); +typedef void (*HTTPSRV_PLUGIN_PROCESS_FUNC)(void *message, void *plugin_context); + +/* + * HTTP server plugin callbacks. + */ +typedef struct httpsrv_plugin_callbacks +{ + HTTPSRV_PLUGIN_CREATE_FUNC create; + HTTPSRV_PLUGIN_DESTROY_FUNC destroy; + HTTPSRV_PLUGIN_WAIT_FUNC wait; + HTTPSRV_PLUGIN_PROCESS_FUNC process; +} HTTPSRV_PLUGIN_CALLBACKS; + +/* +** Wildcard data type for CGI/SSI callback link structure +*/ +typedef struct httpsrv_fn_link_struct +{ + char *fn_name; + HTTPSRV_FN_CALLBACK callback; +} HTTPSRV_FN_LINK_STRUCT; + +/* +** Types of callbacks +*/ +typedef enum httpsrv_callback_type +{ + HTTPSRV_CGI_CALLBACK, + HTTPSRV_SSI_CALLBACK +} HTTPSRV_CALLBACK_TYPE; + +/* +* HTTP session state machine status +*/ +typedef enum httpsrv_ses_state +{ + HTTPSRV_SES_WAIT_REQ, + HTTPSRV_SES_PROCESS_REQ, + HTTPSRV_SES_END_REQ, + HTTPSRV_SES_CLOSE, + HTTPSRV_SES_RESP +} HTTPSRV_SES_STATE; + +/* + * Protocols to which session can be upgraded to. + * + */ +typedef enum httpsrv_upgrade_prot +{ + HTTPSRV_NO_PROTOCOL, + HTTPSRV_WS_PROTOCOL, + HTTPSRV_TLS_PROTOCOL +} HTTPSRV_UPGRADE_PROT; + +/* +* HTTP request parameters +*/ +typedef struct httpsrv_req_struct +{ + HTTPSRV_REQ_METHOD method; /* Request method (GET, POST, HEAD) */ + int content_type; /* Request entity content type */ + int32_t content_length; /* Content length */ + uint32_t pending; /* Number of bytes in request not parsed */ + uint32_t lines; /* Number of request lines */ + char *path; /* Requested path */ + char *query; /* Data send in URL */ + HTTPSRV_AUTH_USER_STRUCT auth; /* Authentication credentials received from client */ + HTTPSRV_UPGRADE_PROT upgrade_to; /* Protocol to upgrade to. Zero = no upgrade. */ +} HTTPSRV_REQ_STRUCT; + +/* +* HTTP response parameters +*/ +typedef struct httpsrv_res_struct +{ + HTTPSRV_FS_FILE *file; /* Handle to a file to send */ + int32_t status_code; /* Status code - httpsrv_sendhdr transforms it to a text */ + int32_t length; /* Response length */ + const HTTPSRV_AUTH_REALM_STRUCT *auth_realm; /* Authentication realm */ + int content_type; /* Content type */ + char script_buffer[3]; /* Buffer for script tag search. */ +} HTTPSRV_RES_STRUCT; + +/* +* HTTP session buffer +*/ +typedef struct httpsrv_buffer +{ + uint32_t offset; /* Write offset */ + char *data; /* Buffer data */ +} HTTPSRV_BUFF_STRUCT; + +/* + * Session process function prototype + */ +typedef void (*HTTPSRV_SES_FUNC)(void *server, void *session); + +/* +* HTTP session structure +*/ +typedef struct httpsrv_session_struct +{ + HTTPSRV_SES_FUNC process_func; /* Session process function */ + HTTPSRV_SES_STATE state; /* HTTP session state */ + volatile uint32_t valid; /* Any value different than HTTPSRV_VALID means session is invalid */ + volatile int sock; /* Session socket */ + volatile uint32_t + time; /* Session time. Updated when there is some activity in session. Used for timeout detection. */ + uint32_t timeout; /* Session timeout in ms. timeout_time = time + timeout */ + HTTPSRV_BUFF_STRUCT buffer; /* Session internal read/write buffer */ + HTTPSRV_REQ_STRUCT request; /* Data read from the request */ + HTTPSRV_RES_STRUCT response; /* Response data */ + sys_sem_t lock; /* Session lock */ + volatile sys_thread_t script_tid; /* Session script handler */ +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + const WS_PLUGIN_STRUCT *plugin; /* Plugin to be invoked for session. */ + WS_HANDSHAKE_STRUCT *ws_handshake; /* WebSocket hand-shake */ +#endif +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + httpsrv_tls_sock_t tls_sock; +#endif + uint32_t flags; /* Session flags */ + +} HTTPSRV_SESSION_STRUCT; + +/* + * Message to be send to plugin handler task. + */ +#if HTTPSRV_CFG_WEBSOCKET_ENABLED +typedef struct httpsrv_plugin_msg +{ + uint32_t sock; + uint8_t *buffer; + WS_PLUGIN_STRUCT *plugin; + HTTPSRV_PLUGIN_CALLBACKS *callbacks; +} HTTPSRV_PLUGIN_MSG; +#endif + +/* +** HTTP server main structure. +*/ +typedef struct httpsrv_struct +{ + HTTPSRV_PARAM_STRUCT params; /* server parameters */ + volatile int sock; /* listening socket*/ + HTTPSRV_SESSION_STRUCT *volatile *session; /* array of pointers to sessions */ + volatile uint32_t valid; /* Any value different than HTTPSRV_VALID means session is invalid */ + volatile sys_thread_t server_tid; /* Server task ID */ + void *script_msgq; /* Message queue for CGI */ + sys_sem_t ses_cnt; /* Session counter */ +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + httpsrv_tls_ctx_t tls_ctx; /* TLS context.*/ +#endif +} HTTPSRV_STRUCT; + +/* +** Parameter for session task +*/ +typedef struct httpsrv_ses_task_param +{ + HTTPSRV_STRUCT *server; /* Pointer to server structure */ + HTTPSRV_SESSION_STRUCT *volatile *session_p; +} HTTPSRV_SES_TASK_PARAM; + +/* + * Parameters for detached script task + */ +typedef struct httpsrv_det_task_param +{ + HTTPSRV_SESSION_STRUCT *session; /* Session to start task for. */ + HTTPSRV_CALLBACK_TYPE type; /* Callback type (SSI/CGI) */ + HTTPSRV_FN_CALLBACK user_function; /* User function to be called */ + uint32_t stack_size; /* Stack size for detached task */ + char *script_name; /* Name of script */ +} HTTPSRV_DET_TASK_PARAM; + +#ifdef __cplusplus +extern "C" { +#endif + +void httpsrv_server_task(void *arg); +void httpsrv_http_process(void *server_ptr, void *session_ptr); + +#ifdef __cplusplus +} +#endif + +#endif /* HTTP_PRV_H_ */ diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_script.c b/middleware/lwip/src/apps/httpsrv/httpsrv_script.c new file mode 100644 index 0000000..29ca6eb --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_script.c @@ -0,0 +1,275 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016, 2019 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* +* Comments: +* +* HTTPSRV script functions. +*/ + +#include "httpsrv.h" +#include "httpsrv_prv.h" +#include "httpsrv_supp.h" +#include "httpsrv_script.h" + +/* +** Function for searching callback for name in function table (SSI/CGI) +** +** IN: +** HTTPSRV_FN_LINK_STRUCT* table - table to search in. +** +** char* name - name to search. +** OUT: +** stack_size - pointer to variable to store callback stack size to. +** +** Return Value: +** HTTPSRV_FN_CALLBACK - function callback if successfull, NULL if not found +*/ +HTTPSRV_FN_CALLBACK httpsrv_find_callback(HTTPSRV_FN_LINK_STRUCT *table, char *name /*, uint32_t* stack_size*/) +{ + HTTPSRV_FN_CALLBACK retval = NULL; + + if (table && name) + { + while ((table->callback != NULL) && (*(table->callback) != NULL)) + { + if (0 == strcmp(name, table->fn_name)) + { + retval = (HTTPSRV_FN_CALLBACK)table->callback; + break; + } + table++; + } + } + + return (retval); +} + +/* +** Function for CGI calling +** +** IN: +** HTTPSRV_CGI_CALLBACK_FN function - pointer to user function to be called as CGI +** +** HTTPSRV_SCRIPT_MSG* msg_ptr - pointer to message containing data required for CGI parameter +** OUT: +** none +** +** Return Value: +** none +*/ +#define HTTPSRV_ADDR_STR_SIZE sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") +void httpsrv_call_cgi(HTTPSRV_CGI_CALLBACK_FN function, + HTTPSRV_SESSION_STRUCT *session /* Session requesting script */, + char *name /* Function name */) +{ + HTTPSRV_CGI_REQ_STRUCT cgi_param; + char server_ip[HTTPSRV_ADDR_STR_SIZE]; + char remote_ip[HTTPSRV_ADDR_STR_SIZE]; + struct sockaddr l_address; + struct sockaddr r_address; + socklen_t length = sizeof(struct sockaddr); + + /* Fill callback parameter */ + cgi_param.ses_handle = (uint32_t)session; + cgi_param.request_method = session->request.method; + cgi_param.content_type = (HTTPSRV_CONTENT_TYPE)session->request.content_type; + cgi_param.content_length = session->request.content_length; + + getsockname(session->sock, &l_address, &length); + getpeername(session->sock, &r_address, &length); +#if LWIP_IPV4 + if (l_address.sa_family == AF_INET) + { + inet_ntop(l_address.sa_family, &((struct sockaddr_in *)&l_address)->sin_addr.s_addr, server_ip, + sizeof(server_ip)); + inet_ntop(r_address.sa_family, &((struct sockaddr_in *)&r_address)->sin_addr.s_addr, remote_ip, + sizeof(remote_ip)); + cgi_param.server_port = ((struct sockaddr_in *)&l_address)->sin_port; + } + else +#endif +#if LWIP_IPV6 + if (l_address.sa_family == AF_INET6) + { + inet_ntop(l_address.sa_family, ((struct sockaddr_in6 *)&l_address)->sin6_addr.s6_addr, server_ip, + sizeof(server_ip)); + inet_ntop(r_address.sa_family, ((struct sockaddr_in6 *)&r_address)->sin6_addr.s6_addr, remote_ip, + sizeof(remote_ip)); + cgi_param.server_port = ((struct sockaddr_in6 *)&l_address)->sin6_port; + } + else +#endif + { + } + + cgi_param.auth_type = HTTPSRV_AUTH_BASIC; + cgi_param.remote_user = session->request.auth.user_id; + cgi_param.remote_addr = remote_ip; + cgi_param.server_name = server_ip; + cgi_param.script_name = name; + cgi_param.server_protocol = HTTPSRV_PROTOCOL_STRING; + cgi_param.server_software = HTTPSRV_PRODUCT_STRING; + cgi_param.query_string = session->request.query; + cgi_param.gateway_interface = HTTPSRV_CGI_VERSION_STRING; + + /* Call the function */ + function(&cgi_param); +} + +/* +** Function for SSI calling +** +** IN: +** HTTPSRV_SSI_CALLBACK_FN function - pointer to user function to be called as SSI +** +** HTTPSRV_SCRIPT_MSG* msg_ptr - pointer to message containing data required for SSI parameter +** OUT: +** none +** +** Return Value: +** none +*/ +void httpsrv_call_ssi(HTTPSRV_SSI_CALLBACK_FN function, + HTTPSRV_SESSION_STRUCT *session /* Session requesting script */, + char *name /* Function name */) +{ + char *tmp; + HTTPSRV_SSI_PARAM_STRUCT ssi_param; + + ssi_param.ses_handle = (uint32_t)session; + tmp = strchr(name, ':'); + if (tmp != NULL) + { + *tmp++ = '\0'; + } + else + { + tmp = ""; + } + ssi_param.com_param = tmp; + + function(&ssi_param); +} + +/* +** Task for CGI/SSI handling. +*/ +void httpsrv_script_handler(HTTPSRV_STRUCT *server, + HTTPSRV_SESSION_STRUCT *session /* Session requesting script */, + HTTPSRV_CALLBACK_TYPE type /* Type of callback */, + char *name /* Function name */) +{ + /* Read messages */ + if (server && name && session) + { + HTTPSRV_FN_CALLBACK user_function; + HTTPSRV_FN_LINK_STRUCT *table; + char *separator; + + user_function = NULL; + /* + * There are two options: + * 1. User set stack size to 0 and script callback will be run from this task. + * 2. User set stack size > 0 and script callback will be run in separate task. + */ + switch (type) + { + case HTTPSRV_CGI_CALLBACK: + table = (HTTPSRV_FN_LINK_STRUCT *)server->params.cgi_lnk_tbl; + user_function = httpsrv_find_callback(table, name); + + /* Option No.1a - Run User CGI function here. */ + if (user_function) + { + httpsrv_call_cgi((HTTPSRV_CGI_CALLBACK_FN)user_function, session, name); + httpsrv_ses_flush(session); + } + break; + + case HTTPSRV_SSI_CALLBACK: + table = (HTTPSRV_FN_LINK_STRUCT *)server->params.ssi_lnk_tbl; + + /* Set separator to null character temporarily. */ + separator = strchr(name, ':'); + if (separator != NULL) + { + *separator = '\0'; + } + + user_function = httpsrv_find_callback(table, name); + + if (separator != NULL) + { + *separator = ':'; + } + + /* Option No.1b - Run User SSI function here. */ + if (user_function) + { + httpsrv_call_ssi((HTTPSRV_SSI_CALLBACK_FN)user_function, session, name); + httpsrv_ses_flush(session); + } + break; + + default: + break; + } + } +} + +/* +** Function for CGI request processing +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer. +** HTTPSRV_STRUCT* server - pointer to server structure (needed for session parameters). +** char* cgi_name - name of cgi function. +** +** OUT: +** none +** +** Return Value: +** none +*/ +void httpsrv_process_cgi(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session, char *cgi_name) +{ + httpsrv_script_handler(server, session, HTTPSRV_CGI_CALLBACK, cgi_name); + + /* + ** There is some unread content from client after CGI finished. + ** It must be read and discarded if we have keep-alive enabled + ** so it does not affect next request. + */ + if (session->request.content_length) + { + char tmp[HTTPSRV_TMP_BUFFER_SIZE]; + uint32_t length = session->request.content_length; + + while (length) + { + int32_t retval; + int32_t chunk; + + chunk = sizeof(tmp); + if (length < chunk) + { + chunk = length; + } + retval = httpsrv_read(session, tmp, chunk); + if (retval < 0) + { + break; + } + length -= retval; + } + + session->request.content_length = 0; + } + return; +} diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_script.h b/middleware/lwip/src/apps/httpsrv/httpsrv_script.h new file mode 100644 index 0000000..9584b83 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_script.h @@ -0,0 +1,33 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef HTTPSRV_SCRIPT_H_ +#define HTTPSRV_SCRIPT_H_ + +#include "httpsrv_prv.h" + +#ifdef __cplusplus +extern "C" { +#endif + +uint32_t httpsrv_wait_for_cgi(HTTPSRV_SESSION_STRUCT *session); +void httpsrv_detach_script(HTTPSRV_DET_TASK_PARAM *task_params); +HTTPSRV_FN_CALLBACK httpsrv_find_callback(HTTPSRV_FN_LINK_STRUCT *table, char *name); +void httpsrv_call_cgi(HTTPSRV_CGI_CALLBACK_FN function, HTTPSRV_SESSION_STRUCT *session, char *name); +void httpsrv_call_ssi(HTTPSRV_SSI_CALLBACK_FN function, HTTPSRV_SESSION_STRUCT *session, char *name); +void httpsrv_process_cgi(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session, char *cgi_name); +void httpsrv_script_handler(HTTPSRV_STRUCT *server, + HTTPSRV_SESSION_STRUCT *session, + HTTPSRV_CALLBACK_TYPE type, + char *name); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_sha1.c b/middleware/lwip/src/apps/httpsrv/httpsrv_sha1.c new file mode 100644 index 0000000..f58df23 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_sha1.c @@ -0,0 +1,246 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* +SHA-1 in C +By Steve Reid +100% Public Domain +*/ + +#include +#include + +#include +#include "httpsrv_sha1.h" + +void SHA1_Transform(uint32_t state[5], const uint8_t buffer[64]); + +#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) + +/* blk0() and blk() perform the initial expand. */ +/* I got the idea of expanding during the round function from SSLeay */ +/* FIXME: can we do this in an endian-proof way? */ +#ifdef BIG_ENDIAN +#define blk0(i) block->l[i] +#else +#define blk0(i) (block->l[i] = (rol(block->l[i], 24) & 0xFF00FF00) | (rol(block->l[i], 8) & 0x00FF00FF)) +#endif +#define blk(i) \ + (block->l[i & 15] = \ + rol(block->l[(i + 13) & 15] ^ block->l[(i + 8) & 15] ^ block->l[(i + 2) & 15] ^ block->l[i & 15], 1)) + +/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */ +#define R0(v, w, x, y, z, i) \ + z += ((w & (x ^ y)) ^ y) + blk0(i) + 0x5A827999 + rol(v, 5); \ + w = rol(w, 30); +#define R1(v, w, x, y, z, i) \ + z += ((w & (x ^ y)) ^ y) + blk(i) + 0x5A827999 + rol(v, 5); \ + w = rol(w, 30); +#define R2(v, w, x, y, z, i) \ + z += (w ^ x ^ y) + blk(i) + 0x6ED9EBA1 + rol(v, 5); \ + w = rol(w, 30); +#define R3(v, w, x, y, z, i) \ + z += (((w | x) & y) | (w & x)) + blk(i) + 0x8F1BBCDC + rol(v, 5); \ + w = rol(w, 30); +#define R4(v, w, x, y, z, i) \ + z += (w ^ x ^ y) + blk(i) + 0xCA62C1D6 + rol(v, 5); \ + w = rol(w, 30); + +/* Hash a single 512-bit block. This is the core of the algorithm. */ +void SHA1_Transform(uint32_t state[5], const uint8_t buffer[64]) +{ + uint32_t a, b, c, d, e; + typedef union + { + uint8_t c[64]; + uint32_t l[16]; + } CHAR64LONG16; + CHAR64LONG16 *block; + +#ifdef SHA1HANDSOFF + static uint8_t workspace[64]; + block = (CHAR64LONG16 *)workspace; + _mem_copy(buffer, block, 64); +#else + block = (CHAR64LONG16 *)buffer; +#endif + + /* Copy context->state[] to working vars */ + a = state[0]; + b = state[1]; + c = state[2]; + d = state[3]; + e = state[4]; + + /* 4 rounds of 20 operations each. Loop unrolled. */ + R0(a, b, c, d, e, 0); + R0(e, a, b, c, d, 1); + R0(d, e, a, b, c, 2); + R0(c, d, e, a, b, 3); + R0(b, c, d, e, a, 4); + R0(a, b, c, d, e, 5); + R0(e, a, b, c, d, 6); + R0(d, e, a, b, c, 7); + R0(c, d, e, a, b, 8); + R0(b, c, d, e, a, 9); + R0(a, b, c, d, e, 10); + R0(e, a, b, c, d, 11); + R0(d, e, a, b, c, 12); + R0(c, d, e, a, b, 13); + R0(b, c, d, e, a, 14); + R0(a, b, c, d, e, 15); + R1(e, a, b, c, d, 16); + R1(d, e, a, b, c, 17); + R1(c, d, e, a, b, 18); + R1(b, c, d, e, a, 19); + R2(a, b, c, d, e, 20); + R2(e, a, b, c, d, 21); + R2(d, e, a, b, c, 22); + R2(c, d, e, a, b, 23); + R2(b, c, d, e, a, 24); + R2(a, b, c, d, e, 25); + R2(e, a, b, c, d, 26); + R2(d, e, a, b, c, 27); + R2(c, d, e, a, b, 28); + R2(b, c, d, e, a, 29); + R2(a, b, c, d, e, 30); + R2(e, a, b, c, d, 31); + R2(d, e, a, b, c, 32); + R2(c, d, e, a, b, 33); + R2(b, c, d, e, a, 34); + R2(a, b, c, d, e, 35); + R2(e, a, b, c, d, 36); + R2(d, e, a, b, c, 37); + R2(c, d, e, a, b, 38); + R2(b, c, d, e, a, 39); + R3(a, b, c, d, e, 40); + R3(e, a, b, c, d, 41); + R3(d, e, a, b, c, 42); + R3(c, d, e, a, b, 43); + R3(b, c, d, e, a, 44); + R3(a, b, c, d, e, 45); + R3(e, a, b, c, d, 46); + R3(d, e, a, b, c, 47); + R3(c, d, e, a, b, 48); + R3(b, c, d, e, a, 49); + R3(a, b, c, d, e, 50); + R3(e, a, b, c, d, 51); + R3(d, e, a, b, c, 52); + R3(c, d, e, a, b, 53); + R3(b, c, d, e, a, 54); + R3(a, b, c, d, e, 55); + R3(e, a, b, c, d, 56); + R3(d, e, a, b, c, 57); + R3(c, d, e, a, b, 58); + R3(b, c, d, e, a, 59); + R4(a, b, c, d, e, 60); + R4(e, a, b, c, d, 61); + R4(d, e, a, b, c, 62); + R4(c, d, e, a, b, 63); + R4(b, c, d, e, a, 64); + R4(a, b, c, d, e, 65); + R4(e, a, b, c, d, 66); + R4(d, e, a, b, c, 67); + R4(c, d, e, a, b, 68); + R4(b, c, d, e, a, 69); + R4(a, b, c, d, e, 70); + R4(e, a, b, c, d, 71); + R4(d, e, a, b, c, 72); + R4(c, d, e, a, b, 73); + R4(b, c, d, e, a, 74); + R4(a, b, c, d, e, 75); + R4(e, a, b, c, d, 76); + R4(d, e, a, b, c, 77); + R4(c, d, e, a, b, 78); + R4(b, c, d, e, a, 79); + + /* Add the working vars back into context.state[] */ + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; + state[4] += e; + + /* Wipe variables */ + a = b = c = d = e = 0; +} + +/* SHA1Init - Initialize new context */ +void SHA1_Init(SHA1_CTX *context) +{ + /* SHA1 initialization constants */ + context->state[0] = 0x67452301; + context->state[1] = 0xEFCDAB89; + context->state[2] = 0x98BADCFE; + context->state[3] = 0x10325476; + context->state[4] = 0xC3D2E1F0; + context->count[0] = context->count[1] = 0; +} + +/* Run your data through this. */ +void SHA1_Update(SHA1_CTX *context, const uint8_t *data, const size_t len) +{ + size_t i, j; + + j = (context->count[0] >> 3) & 63; + if ((context->count[0] += len << 3) < (len << 3)) + { + context->count[1]++; + } + context->count[1] += (len >> 29); + if ((j + len) > 63) + { + memcpy(&context->buffer[j], (void *)data, (i = 64 - j)); + SHA1_Transform(context->state, context->buffer); + for (; i + 63 < len; i += 64) + { + SHA1_Transform(context->state, data + i); + } + j = 0; + } + else + { + i = 0; + } + memcpy(&context->buffer[j], (void *)&data[i], len - i); +} + +/* Add padding and return the message digest. */ +void SHA1_Final(SHA1_CTX *context, uint8_t digest[SHA1_DIGEST_SIZE]) +{ + uint32_t i; + uint8_t finalcount[8]; + + for (i = 0; i < 8; i++) + { + finalcount[i] = + (unsigned char)((context->count[(i >= 4 ? 0 : 1)] >> ((3 - (i & 3)) * 8)) & 255); /* Endian independent */ + } + SHA1_Update(context, (uint8_t *)"\200", 1); + while ((context->count[0] & 504) != 448) + { + SHA1_Update(context, (uint8_t *)"\0", 1); + } + SHA1_Update(context, finalcount, 8); /* Should cause a SHA1_Transform() */ + for (i = 0; i < SHA1_DIGEST_SIZE; i++) + { + digest[i] = (uint8_t)((context->state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255); + } + + /* Wipe variables */ + i = 0; + memset(context->buffer, 0, 64); + memset(context->state, 0, 20); + memset(context->count, 0, 8); + memset(finalcount, 0, 8); /* SWR */ + +#ifdef SHA1HANDSOFF /* make SHA1Transform overwrite its own static vars */ + SHA1_Transform(context->state, context->buffer); +#endif +} diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_sha1.h b/middleware/lwip/src/apps/httpsrv/httpsrv_sha1.h new file mode 100644 index 0000000..e00fea7 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_sha1.h @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* public api for steve reid's public domain SHA-1 implementation */ +/* this file is in the public domain */ + +#ifndef __SHA1_H +#define __SHA1_H + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct +{ + uint32_t state[5]; + uint32_t count[2]; + uint8_t buffer[64]; +} SHA1_CTX; + +#define SHA1_DIGEST_SIZE 20 + +void SHA1_Init(SHA1_CTX *context); +void SHA1_Update(SHA1_CTX *context, const uint8_t *data, const size_t len); +void SHA1_Final(SHA1_CTX *context, uint8_t digest[SHA1_DIGEST_SIZE]); + +#ifdef __cplusplus +} +#endif + +#endif /* __SHA1_H */ diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_supp.c b/middleware/lwip/src/apps/httpsrv/httpsrv_supp.c new file mode 100644 index 0000000..df876e3 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_supp.c @@ -0,0 +1,1783 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016-2019 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* +* HTTPSRV support functions. +*/ + +#include "httpsrv.h" +#include "httpsrv_prv.h" +#include "httpsrv_supp.h" +#include "httpsrv_script.h" +#include +#include +#include +#include +#include +#include "httpsrv_base64.h" +#include "httpsrv_tls.h" +#include "lwip/def.h" +#include "lwip/sockets.h" + +#define HTTPSRV_CALLBACK_TASK_NAME "HTTP server callback handler" + +/* +* string table item +*/ +typedef struct httpsrv_table_row +{ + int id; + char *str; +} HTTPSRV_TABLE_ROW; + +/* Structure defining MIME types table row */ +typedef struct httpsrv_content_table_row +{ + uint32_t length; /* extension string length (strlen) */ + char *ext; /* extension string */ + int content_type; /* extension MIME type string */ + bool use_cache; /* cache use */ +} HTTPSRV_CONTENT_TABLE_ROW; + +/* +* content type +*/ +static const HTTPSRV_TABLE_ROW content_type[] = {{HTTPSRV_CONTENT_TYPE_PLAIN, "text/plain"}, + {HTTPSRV_CONTENT_TYPE_HTML, "text/html"}, + {HTTPSRV_CONTENT_TYPE_CSS, "text/css"}, + {HTTPSRV_CONTENT_TYPE_GIF, "image/gif"}, + {HTTPSRV_CONTENT_TYPE_JPG, "image/jpeg"}, + {HTTPSRV_CONTENT_TYPE_PNG, "image/png"}, + {HTTPSRV_CONTENT_TYPE_SVG, "image/svg+xml"}, + {HTTPSRV_CONTENT_TYPE_JS, "application/javascript"}, + {HTTPSRV_CONTENT_TYPE_XML, "application/xml"}, + {HTTPSRV_CONTENT_TYPE_ZIP, "application/zip"}, + {HTTPSRV_CONTENT_TYPE_PDF, "application/pdf"}, + {HTTPSRV_CONTENT_TYPE_OCTETSTREAM, "application/octet-stream"}, + {HTTPSRV_CONTENT_TYPE_FORMURLENC, "application/x-www-form-urlencoded"}, + {HTTPSRV_CONTENT_TYPE_FORMDATA, "multipart/form-data"}, + {0, 0}}; + +/* +* Response status to reason conversion table +*/ +static const HTTPSRV_TABLE_ROW reason_phrase[] = { + {HTTPSRV_CODE_CONTINUE, "Continue"}, + {HTTPSRV_CODE_UPGRADE, "Switching Protocols"}, + {HTTPSRV_CODE_OK, "OK"}, + {HTTPSRV_CODE_CREATED, "Created"}, + {HTTPSRV_CODE_ACCEPTED, "Accepted"}, + {HTTPSRV_CODE_NON_AUTHORITATIVE, "Non-Authoritative Information"}, + {HTTPSRV_CODE_NO_CONTENT, "No Content"}, + {HTTPSRV_CODE_RESET_CONTENT, "Reset Content"}, + {HTTPSRV_CODE_PARTIAL_CONTENT, "Partial Content"}, + {HTTPSRV_CODE_MULTIPLE_CHOICES, "Multiple Choices"}, + {HTTPSRV_CODE_MOVED_PERMANENTLY, "Moved Permanently"}, + {HTTPSRV_CODE_FOUND, "Found"}, + {HTTPSRV_CODE_SEE_OTHER, "See Other"}, + {HTTPSRV_CODE_NOT_MODIFIED, "Not Modified"}, + {HTTPSRV_CODE_USE_PROXY, "Use Proxy"}, + {HTTPSRV_CODE_TEMPORARY_REDIRECT, "Temporary Redirect"}, + {HTTPSRV_CODE_BAD_REQ, "Bad Request"}, + {HTTPSRV_CODE_UNAUTHORIZED, "Unauthorized"}, + {HTTPSRV_CODE_PAYMENT_REQUIRED, "Payment Required"}, + {HTTPSRV_CODE_FORBIDDEN, "Forbidden"}, + {HTTPSRV_CODE_NOT_FOUND, "Not Found"}, + {HTTPSRV_CODE_METHOD_NOT_ALLOWED, "Method Not Allowed"}, + {HTTPSRV_CODE_NOT_ACCEPTABLE, "Not Acceptable"}, + {HTTPSRV_CODE_PROXY_AUTH_REQUIRED, "Proxy Authentication Required"}, + {HTTPSRV_CODE_REQUEST_TIMEOUT, "Request Time-out"}, + {HTTPSRV_CODE_CONFLICT, "Conflict"}, + {HTTPSRV_CODE_GONE, "Gone"}, + {HTTPSRV_CODE_NO_LENGTH, "Length Required"}, + {HTTPSRV_CODE_PRECONDITION_FAILED, "Precondition Failed"}, + {HTTPSRV_CODE_ENTITY_TOO_LARGE, "Request Entity Too Large"}, + {HTTPSRV_CODE_URI_TOO_LONG, "Request-URI Too Large"}, + {HTTPSRV_CODE_UNSUPPORTED_MEDIA, "Unsupported Media Type"}, + {HTTPSRV_CODE_RANGE_NOT_SATISFIABLE, "Requested range not satisfiable"}, + {HTTPSRV_CODE_EXPECTATION_FAILED, "Expectation Failed"}, + {HTTPSRV_CODE_UPGRADE_REQUIRED, "Upgrade Required"}, + {HTTPSRV_CODE_FIELD_TOO_LARGE, "Request Header Fields Too Large"}, + {HTTPSRV_CODE_INTERNAL_ERROR, "Internal Server Error"}, + {HTTPSRV_CODE_NOT_IMPLEMENTED, "Not Implemented"}, + {HTTPSRV_CODE_BAD_GATEWAY, "Bad Gateway"}, + {HTTPSRV_CODE_SERVICE_UNAVAILABLE, "Service Unavailable"}, + {HTTPSRV_CODE_GATEWAY_TIMEOUT, "Gateway Time-out"}, + {HTTPSRV_CODE_VERSION_NOT_SUPPORTED, "HTTP Version not supported"}, + {0, 0}}; + +/* +** Extension -> content type conversion table. +** This table rows MUST be ordered by size and alphabetically +** so we can list through it quickly +*/ +static const HTTPSRV_CONTENT_TABLE_ROW content_tbl[] = { + /* Size, extension, MIME type, Cache? */ + {sizeof("js") - 1, "js", HTTPSRV_CONTENT_TYPE_JS, true}, + {sizeof("css") - 1, "css", HTTPSRV_CONTENT_TYPE_CSS, true}, + {sizeof("gif") - 1, "gif", HTTPSRV_CONTENT_TYPE_GIF, true}, + {sizeof("htm") - 1, "htm", HTTPSRV_CONTENT_TYPE_HTML, true}, + {sizeof("jpg") - 1, "jpg", HTTPSRV_CONTENT_TYPE_JPG, true}, + {sizeof("pdf") - 1, "pdf", HTTPSRV_CONTENT_TYPE_PDF, false}, + {sizeof("png") - 1, "png", HTTPSRV_CONTENT_TYPE_PNG, true}, + {sizeof("svg") - 1, "svg", HTTPSRV_CONTENT_TYPE_SVG, true}, + {sizeof("txt") - 1, "txt", HTTPSRV_CONTENT_TYPE_PLAIN, false}, + {sizeof("xml") - 1, "xml", HTTPSRV_CONTENT_TYPE_XML, false}, + {sizeof("zip") - 1, "zip", HTTPSRV_CONTENT_TYPE_ZIP, false}, + {sizeof("html") - 1, "html", HTTPSRV_CONTENT_TYPE_HTML, true}, + {sizeof("shtm") - 1, "shtm", HTTPSRV_CONTENT_TYPE_HTML, false}, + {sizeof("shtml") - 1, "shtml", HTTPSRV_CONTENT_TYPE_HTML, false}, + /* Following row MUST have length set to zero so we have proper array termination */ + {0, "", HTTPSRV_CONTENT_TYPE_OCTETSTREAM, false}}; + +static uint32_t httpsrv_sendextstr(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session, uint32_t length); +static void httpsrv_print(HTTPSRV_SESSION_STRUCT *session, char *format, ...); +static char *httpsrv_get_table_str(HTTPSRV_TABLE_ROW *table, const int32_t id); +static int httpsrv_get_table_int(HTTPSRV_TABLE_ROW *table, char *str); +static void httpsrv_process_file_type(char *extension, HTTPSRV_SESSION_STRUCT *session); +static int32_t httpsrv_set_params(HTTPSRV_STRUCT *server, HTTPSRV_PARAM_STRUCT *params); +static int32_t httpsrv_init_socket(HTTPSRV_STRUCT *server); +static int httpsrv_basic_auth(char *auth_string, char **user_ptr, char **pass_ptr); +#if HTTPSRV_CFG_WEBSOCKET_ENABLED +static void *httpsrv_ws_alloc(HTTPSRV_SESSION_STRUCT *session); +#endif + +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + +/* +** Find plugin for selected resource in table. +** +** IN: +** WS_PLUGIN_STRUCT* table - table to search in. +** char* resource - resource name. +** +** OUT: +** none +** +** Return Value: +** WS_PLUGIN_STRUCT* plugin structure. NULL if not found. +*/ +const WS_PLUGIN_STRUCT *httpsrv_get_ws_plugin(const WS_PLUGIN_STRUCT *table, char *resource) +{ + const WS_PLUGIN_STRUCT *retval = NULL; + + if ((table != NULL) && (resource != NULL)) + { + while (table->resource != NULL) + { + if (strcmp(resource, table->resource) == 0) + { + retval = table; + break; + } + table++; + } + } + return (retval); +} + +/* + * Allocate WebSocket handshake structure. + */ +void *httpsrv_ws_alloc(HTTPSRV_SESSION_STRUCT *session) +{ + if (session->ws_handshake == NULL) + { + session->ws_handshake = httpsrv_mem_alloc_zero(sizeof(WS_HANDSHAKE_STRUCT)); + } + if (session->ws_handshake == NULL) + { + session->response.status_code = HTTPSRV_CODE_INTERNAL_ERROR; + } + return (session->ws_handshake); +} + +#endif + +/* + * Wait for incoming connection, return socket with activity or error. + */ +int httpsrv_wait_for_conn(HTTPSRV_STRUCT *server) +{ + fd_set readset; + int32_t retval = -1; + + FD_ZERO(&readset); + FD_SET(server->sock, &readset); + + if (lwip_select(1, (fd_set *)&readset, 0, 0, 0) == 1) + { + if (FD_ISSET(server->sock, &readset)) + { + retval = server->sock; + } + } + return (retval); +} + +/* + * Allocate server structure, init sockets, etc. + */ +HTTPSRV_STRUCT *httpsrv_create_server(HTTPSRV_PARAM_STRUCT *params) +{ + HTTPSRV_STRUCT *server = NULL; + int32_t error; + + if ((server = httpsrv_mem_alloc_zero(sizeof(HTTPSRV_STRUCT))) == NULL) + { + return (NULL); + } + + error = httpsrv_set_params(server, params); + if (error != HTTPSRV_OK) + { + goto EXIT; + } + + error = sys_sem_new(&server->ses_cnt, server->params.max_ses); + if (error != ERR_OK) + { + goto EXIT; + } + + /* Allocate space for session pointers */ + server->session = httpsrv_mem_alloc_zero(sizeof(HTTPSRV_SESSION_STRUCT *) * server->params.max_ses); + if (server->session == NULL) + { + goto EXIT; + } + + /* Init sockets. */ + error = httpsrv_init_socket(server); + + if (error != HTTPSRV_OK) + { + goto EXIT; + } + return (server); + +EXIT: + httpsrv_destroy_server(server); + httpsrv_mem_free(server); + return (NULL); +} + +/* + * Close sockets, free memory etc. + */ +void httpsrv_destroy_server(HTTPSRV_STRUCT *server) +{ + uint32_t n = 0; + bool wait = false; + + if (server) + { + if (server->valid) + { + server->valid = HTTPSRV_INVALID; + if (server->sock != -1) + { + lwip_close(server->sock); + server->sock = -1; + } + } + + if(server->session) + { + /* Invalidate sessions (this is signal for session tasks to end them) */ + for (n = 0; n < server->params.max_ses; n++) + { + if (server->session[n]) + { + server->session[n]->valid = HTTPSRV_INVALID; + } + } + /* Wait until all session tasks end */ + do + { + wait = false; + for (n = 0; n < server->params.max_ses; n++) + { + if (server->session[n]) + { + wait = true; + break; + } + } + taskYIELD(); + } while (wait); + + httpsrv_mem_free((void *)server->session); + server->session = NULL; + } + + if(server->ses_cnt) + { + sys_sem_free(&server->ses_cnt); + } + +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + if(server->tls_ctx) + { + httpsrv_tls_release(server->tls_ctx); + } +#endif + + /* Free memory */ + server->params.root_dir = NULL; + server->params.index_page = NULL; + } +} + +/* +** Function for socket initialization (both IPv4 and IPv6) +** +** IN: +** HTTPSRV_STRUCT* server - server structure pointer +** +** uint16_t family - IP protocol family +** OUT: +** none +** +** Return Value: +** uint32_t error code. HTTPSRV_OK if everything went right, positive number otherwise +*/ +static int32_t httpsrv_init_socket(HTTPSRV_STRUCT *server) +{ + int error; + int option; +#if LWIP_SO_SNDTIMEO || LWIP_SO_RCVTIMEO + struct timeval timeval_option; +#endif + + if ((server->sock = lwip_socket(server->params.address.sa_family, SOCK_STREAM, 0)) < 0) + { + return (HTTPSRV_CREATE_FAIL); + } + +/* Set socket options */ +#if LWIP_SO_SNDTIMEO + timeval_option.tv_sec = HTTPSRV_CFG_SEND_TIMEOUT / 1000; /* seconds */ + timeval_option.tv_usec = HTTPSRV_CFG_SEND_TIMEOUT % 1000; /* and microseconds */ + error = lwip_setsockopt(server->sock, SOL_SOCKET, SO_SNDTIMEO, (const void *)&timeval_option, sizeof(timeval_option)); + if (error) + { + return (HTTPSRV_SOCKOPT_FAIL); + } +#endif +#if LWIP_SO_RCVTIMEO + timeval_option.tv_sec = HTTPSRV_CFG_RECEIVE_TIMEOUT / 1000; /* seconds */ + timeval_option.tv_usec = HTTPSRV_CFG_RECEIVE_TIMEOUT % 1000; /* and microseconds */ + error = lwip_setsockopt(server->sock, SOL_SOCKET, SO_RCVTIMEO, (const void *)&timeval_option, sizeof(timeval_option)); + if (error) + { + return (HTTPSRV_SOCKOPT_FAIL); + } +#endif + /* Disable Nagle algorithm.*/ + option = 1; + error = lwip_setsockopt(server->sock, IPPROTO_TCP, TCP_NODELAY, (const void *)&option, sizeof(option)); + if (error) + { + return (HTTPSRV_SOCKOPT_FAIL); + } + +#if SO_REUSE + /* set options to reuse local ip addr for socket */ + option = 1; + error = lwip_setsockopt(server->sock, SOL_SOCKET, SO_REUSEADDR, (const void *)&option, sizeof(option)); + if (error) + { + return (HTTPSRV_SOCKOPT_FAIL); + } +#endif + + /* SO_RCVBUF is not implemented for TCP.*/ + /* SO_SNDBUF is not implemented.*/ + + /* Bind socket */ + error = lwip_bind(server->sock, &server->params.address, sizeof(server->params.address)); + if (error == -1) + { + return (HTTPSRV_BIND_FAIL); + } + + /* Listen */ + error = listen(server->sock, 0); + if (error == -1) + { + return (HTTPSRV_LISTEN_FAIL); + } + return (HTTPSRV_OK); +} + +/* +** Internal function for server parameters initialization +** +** IN: +** HTTPSRV_STRUCT* server - server structure pointer +** +** HTTPSRV_PARAM_STRUCT* params - pointer to user parameters if there are any +** OUT: +** none +** +** Return Value: +** uint32_t error code. HTTPSRV_OK if everything went right, positive number otherwise +*/ +static int32_t httpsrv_set_params(HTTPSRV_STRUCT *server, HTTPSRV_PARAM_STRUCT *params) +{ +#if LWIP_IPV4 + server->params.address.sa_family = AF_INET; + ((struct sockaddr_in *)(&server->params.address))->sin_port = PP_HTONS(HTTPSRV_CFG_DEFAULT_HTTP_PORT); +#elif LWIP_IPV6 + server->params.address.sa_family = AF_INET6; + ((struct sockaddr_in6 *)(&server->params.address))->sin6_port = PP_HTONS(HTTPSRV_CFG_DEFAULT_HTTP_PORT); +#endif + + server->params.max_uri = HTTPSRV_CFG_DEFAULT_URL_LEN; + server->params.max_ses = HTTPSRV_CFG_DEFAULT_SES_CNT; + server->params.root_dir = ""; + server->params.index_page = HTTPSRV_CFG_DEFAULT_INDEX_PAGE; + server->params.cgi_lnk_tbl = NULL; + server->params.ssi_lnk_tbl = NULL; + server->params.task_prio = HTTPSRV_CFG_DEFAULT_PRIORITY; + server->params.auth_table = NULL; +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + server->tls_ctx = NULL; +#endif + + /* If there is parameters structure copy nonzero values to server */ + if (params != NULL) + { + if (params->address.sa_family) + server->params.address.sa_family = params->address.sa_family; + +#if LWIP_IPV4 + if (server->params.address.sa_family == AF_INET) + { + if (((struct sockaddr_in *)(¶ms->address))->sin_port) + ((struct sockaddr_in *)(&server->params.address))->sin_port = + ((struct sockaddr_in *)(¶ms->address))->sin_port; + } +#endif +#if LWIP_IPV6 + else if (server->params.address.sa_family == AF_INET6) + { + if (((struct sockaddr_in6 *)(¶ms->address))->sin6_port) + ((struct sockaddr_in6 *)(&server->params.address))->sin6_port = + ((struct sockaddr_in *)(¶ms->address))->sin_port; + } +#endif + else + { + } /* wrong family detexcted by socket().*/ + + if (params->max_uri) + server->params.max_uri = params->max_uri; + if (params->max_ses) + server->params.max_ses = params->max_ses; + if (params->root_dir) + { + server->params.root_dir = params->root_dir; + } + if (params->index_page) + { + server->params.index_page = params->index_page; + } + if (params->cgi_lnk_tbl) + server->params.cgi_lnk_tbl = params->cgi_lnk_tbl; + if (params->ssi_lnk_tbl) + server->params.ssi_lnk_tbl = params->ssi_lnk_tbl; + if (params->task_prio) + server->params.task_prio = params->task_prio; + if (params->auth_table) + server->params.auth_table = params->auth_table; +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + if (params->ws_tbl) + server->params.ws_tbl = params->ws_tbl; +#endif + +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + if(params->tls_param) + { + server->tls_ctx = httpsrv_tls_init(params->tls_param); + if(server->tls_ctx == NULL) + { + return(HTTPSRV_ERR); + } + + /* Set default HTTPS port.*/ + #if LWIP_IPV4 + if(server->params.address.sa_family == AF_INET) + { + /* Set default port.*/ + if (((struct sockaddr_in *)(¶ms->address))->sin_port == 0) + { + ((struct sockaddr_in *)(&server->params.address))->sin_port = PP_HTONS(HTTPSRV_CFG_DEFAULT_HTTPS_PORT); + } + } + #endif + #if LWIP_IPV6 + else if(server->params.address.sa_family == AF_INET6) + { + if (((struct sockaddr_in6 *)(¶ms->address))->sin_port == 0) + + ((struct sockaddr_in6 *)(&server->params.address))->sin6_port = PP_HTONS(HTTPSRV_CFG_DEFAULT_HTTPS_PORT); + } + #endif + else + {} + } +#endif + /* Server must run with lower priority than TCP/IP task. */ + if (params->task_prio > TCPIP_THREAD_PRIO) + { + params->task_prio = TCPIP_THREAD_PRIO; + } + } + + return (HTTPSRV_OK); +} + +/* + * Accept connection from client. + */ +int httpsrv_accept(int sock) +{ + struct sockaddr remote_addr; + socklen_t length; + + memset(&remote_addr, 0, sizeof(remote_addr)); + length = sizeof(remote_addr); + + return (lwip_accept(sock, &remote_addr, &length)); +} + +/* + * Abort connection on socket. + */ +void httpsrv_abort(int sock) +{ + // struct linger l_options; + + /* Set linger options for RST flag sending. */ + // l_options.l_onoff = 1; + // l_options.l_linger_ms = 0; + // setsockopt(sock, SOL_SOCKET, SO_LINGER, &l_options, sizeof(l_options)); + lwip_close(sock); +} + +/* + * Receive data from socket. + */ +int httpsrv_recv(HTTPSRV_SESSION_STRUCT *session, char *buffer, size_t length, int flags) +{ + int result; +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + if (session->tls_sock != 0) + { + result = httpsrv_tls_recv(session->tls_sock, buffer, length, flags); + } + else +#endif + { + result = lwip_recv(session->sock, buffer, length, flags); + } + + return result; +} + +/* + * Send data to socket + */ +int httpsrv_send(HTTPSRV_SESSION_STRUCT *session, const char *buffer, size_t length, int flags) +{ + int result; +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + if (session->tls_sock != 0) + { + result = httpsrv_tls_send(session->tls_sock, buffer, length, flags); + } + else +#endif + { + result = lwip_send(session->sock, buffer, length, flags); + } + + return result; +} + +/* +** Send HTTP header according to the session response structure. +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session used for transmission +** int32_t content_len - content length +** bool has_entity - flag indicating if HTTP entity is going to be send following header. +** +** OUT: +** none +** +** Return Value: +** none +*/ +void httpsrv_sendhdr(HTTPSRV_SESSION_STRUCT *session, int32_t content_len, bool has_entity) +{ + char *connection_state; + char *phrase; + + if (session->flags & HTTPSRV_FLAG_HEADER_SENT) + { + return; + } + phrase = httpsrv_get_table_str((HTTPSRV_TABLE_ROW *)reason_phrase, session->response.status_code); + if (phrase == NULL) + { + phrase = "-"; + } + httpsrv_print(session, HTTPSRV_PROTOCOL_STRING " %d %s\r\n", session->response.status_code, phrase); + + if (session->flags & HTTPSRV_FLAG_DO_UPGRADE) + { + connection_state = "Upgrade"; + } + else + { + connection_state = (session->flags & HTTPSRV_FLAG_IS_KEEP_ALIVE) ? "Keep-Alive" : "close"; + } + httpsrv_print(session, "Connection: %s\r\n", connection_state); + +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + /* Send WebSocket protocol handshake response if there was WebSocket upgrade request. */ + if (session->request.upgrade_to == HTTPSRV_WS_PROTOCOL) + { + httpsrv_print(session, "Upgrade: WebSocket\r\n"); + + if (session->ws_handshake->version != WS_PROTOCOL_VERSION) + { + httpsrv_print(session, "Sec-WebSocket-Version: %d\r\n", WS_PROTOCOL_VERSION); + } + if (session->ws_handshake->protocols & WS_CHAT_PROTOCOL_MASK) + { + httpsrv_print(session, "Sec-WebSocket-Protocol: %s\r\n", WS_AVAIL_PROTOCOL_STRING); + } + if (strlen(session->ws_handshake->accept) == WS_ACCEPT_LENGTH) + { + httpsrv_print(session, "Sec-WebSocket-Accept: %s\r\n", session->ws_handshake->accept); + } + } +#endif + + httpsrv_print(session, "Server: %s\r\n", HTTPSRV_PRODUCT_STRING); + + /* Check authorization */ + if (session->response.status_code == HTTPSRV_CODE_UNAUTHORIZED) + { + httpsrv_print(session, "WWW-Authenticate: Basic realm=\"%s\"\r\n", session->response.auth_realm->name); + } + + /* If there will be entity body send content type */ + if (has_entity) + { + httpsrv_print(session, "Content-Type: %s\r\n", + httpsrv_get_table_str((HTTPSRV_TABLE_ROW *)content_type, session->response.content_type)); + } + + if (session->response.status_code != HTTPSRV_CODE_UPGRADE) + { + httpsrv_print(session, "Cache-Control: "); + if (session->flags & HTTPSRV_FLAG_IS_CACHEABLE) + { + httpsrv_print(session, "max-age=%d\r\n", HTTPSRV_CFG_CACHE_MAXAGE); + } + else + { + if (session->response.auth_realm != NULL) + { + httpsrv_print(session, "no-store\r\n"); + } + else + { + httpsrv_print(session, "no-cache\r\n"); + } + } + } + /* Only non zero length cause sending Content-Length header field */ + if (content_len > 0) + { + httpsrv_print(session, "Content-Length: %d\r\n", content_len); + } + + /* Handle transfer encoding. */ + if (session->flags & HTTPSRV_FLAG_IS_TRANSCODED) + { + httpsrv_print(session, "Transfer-Encoding: chunked\r\n"); + } + /* End of header */ + httpsrv_print(session, "\r\n"); + + /* Commented out to prevent problems with file system on KHCI USB */ + // if ((content_len == 0) && (!has_entity)) + { + httpsrv_ses_flush(session); + } + session->flags |= HTTPSRV_FLAG_HEADER_SENT; +} + +/* +** Send error page to client +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session used for transmission +** const char* title - title of error page +** const char* text - text displayed on error page +** +** OUT: +** none +** +** Return Value: +** none +*/ +void httpsrv_send_err_page(HTTPSRV_SESSION_STRUCT *session, const char *title, const char *text) +{ + uint32_t length; + char *page; + + length = strlen(title) + strlen(text) + sizeof(ERR_PAGE_FORMAT)+1; + page = httpsrv_mem_alloc(length); + + session->response.content_type = HTTPSRV_CONTENT_TYPE_HTML; + + if (page != NULL) + { + snprintf(page, length, ERR_PAGE_FORMAT, title, text); + httpsrv_sendhdr(session, strlen(page), 1); + httpsrv_write(session, page, strlen(page)); + httpsrv_ses_flush(session); + httpsrv_mem_free(page); + } + else + { + httpsrv_sendhdr(session, 0, 0); + } +} + +/* +** Convert file extension to content type and determine what kind of cache control should be used. +** +** IN: +** char* extension - extension to convert +** +** IN/OUT: +** HTTPSRV_SESSION_STRUCT* session - session pointer +** +** Return Value: +** none +*/ +static void httpsrv_process_file_type(char *extension, HTTPSRV_SESSION_STRUCT *session) +{ + const HTTPSRV_CONTENT_TABLE_ROW *row = content_tbl; + uint32_t length = 0; + + if (extension != NULL) + { + length = strlen(extension) - 1; + /* Move pointer after the dot. */ + extension++; + } + else + { + goto NO_EXT; + } + + /* List through table rows until length match */ + while ((row->length) && (row->length < length)) + { + row++; + } + + /* Do a search in valid rows */ + while (row->length == length) + { + if (lwip_stricmp(extension, row->ext) == 0) + { + session->response.content_type = row->content_type; + if (row->use_cache) + { + session->flags |= HTTPSRV_FLAG_IS_CACHEABLE; + } + + if (session->response.auth_realm != NULL) + { + /* If authentication is required, then response MUST NOT be cached */ + session->flags &= ~HTTPSRV_FLAG_IS_CACHEABLE; + } + return; + } + row++; + } + +NO_EXT: + session->response.content_type = HTTPSRV_CONTENT_TYPE_OCTETSTREAM; + session->flags &= ~HTTPSRV_FLAG_IS_CACHEABLE; +} + +/* +** Send file to client +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session used for transmission +** HTTPSRV_STRUCT* server - server structure +** +** OUT: +** none +** +** Return Value: +** none +*/ +HTTPSRV_SES_STATE httpsrv_sendfile(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session) +{ + char *ext; + int length; + char *buffer; + HTTPSRV_SES_STATE retval; + + buffer = session->buffer.data; + + ext = strrchr(session->request.path, '.'); + httpsrv_process_file_type(ext, session); + + /* Check if file has server side includes */ + if ((0 == lwip_stricmp(ext, ".shtml")) || (0 == lwip_stricmp(ext, ".shtm"))) + { + /* + * Disable keep-alive for this session otherwise we would have to + * wait for session timeout. + */ + session->flags &= ~HTTPSRV_FLAG_IS_KEEP_ALIVE; + httpsrv_sendhdr(session, 0, 1); + + HTTPSRV_FS_fseek(session->response.file, session->response.length, HTTPSRV_FS_IO_SEEK_SET); + + length = HTTPSRV_FS_read(session->response.file, buffer + session->buffer.offset, + HTTPSRV_SES_BUF_SIZE_PRV - session->buffer.offset); + if (length > 0) + { + uint32_t offset; + + offset = httpsrv_sendextstr(server, session, length); + session->response.length += offset; + session->response.length += session->buffer.offset; + httpsrv_ses_flush(session); + } + } + else + { + httpsrv_sendhdr(session, HTTPSRV_FS_size(session->response.file), 1); + HTTPSRV_FS_fseek(session->response.file, session->response.length, HTTPSRV_FS_IO_SEEK_SET); + + length = HTTPSRV_FS_read(session->response.file, buffer + session->buffer.offset, + HTTPSRV_SES_BUF_SIZE_PRV - session->buffer.offset); + // fread(buffer+session->buffer.offset, 1, HTTPSRV_SES_BUF_SIZE_PRV-session->buffer.offset, + // session->response.file); + if (length > 0) + { + session->buffer.offset += length; + length = httpsrv_ses_flush(session); + if (length != -1) + { + session->response.length += length; + } + } + } + + if (length <= 0) + { + retval = HTTPSRV_SES_END_REQ; + } + else + { + retval = HTTPSRV_SES_RESP; + } + return (retval); +} + +/* +** Send extended string to socket (dynamic web pages). +** +** IN: +** HTTPSRV_STRUCT *server - server structure. +** HTTPSRV_SESSION_STRUCT *session - session for sending. +** char *str - string to send. +** uint32_t length - length of source string. +** +** OUT: +** none +** +** Return Value: +** int - number of bytes processed. +*/ +static uint32_t httpsrv_sendextstr(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session, uint32_t length) +{ + char *src; + char *t_buffer; + uint32_t n; + uint32_t retval; + + t_buffer = session->response.script_buffer; + src = session->buffer.data + session->buffer.offset; + + n = strlen(t_buffer); + + if (n == 0) /* Start searching for script token. */ + { + uint32_t n_send; + uint32_t max; + uint32_t i; + char token[] = "<%"; + + i = 0; + max = length; + + for (n_send = 0; (n_send < max) && (token[i]); n_send++) + { + if (src[n_send] == token[i]) + { + t_buffer[i] = token[i]; + i++; + max = ((n_send + 2) < length) ? n_send + 2 : length; + } + else + { + i = 0; + max = length; + session->response.script_buffer[0] = 0; + } + } + session->buffer.offset = n_send - i; + retval = i; + } + else if (n == 1) /* There was already the less-than sign.*/ + { + if (*src == '%') + { + /* There is script token spanning over two buffers. */ + t_buffer[n] = *src; + retval = 1; + } + else + { + /* There was no script token, send missing less-than sign. */ + httpsrv_send(session, session->response.script_buffer, n, 0); + memset(session->response.script_buffer, 0, sizeof(session->response.script_buffer)); + retval = 0; + } + } + else /* Script token beginning found, find end. */ + { + uint32_t name_length; + char fname[HTTPSRV_CFG_MAX_SCRIPT_LN] = {0}; + uint32_t term_length; + + name_length = strcspn(src, " ;%<>\r\n\t\f"); + + if ((src[name_length] == '%') && (src[name_length + 1] == '>')) + { + term_length = 2; + } + else + { + term_length = 1; + } + + if ((name_length > 1) && (name_length < HTTPSRV_CFG_MAX_SCRIPT_LN)) + { + snprintf(fname, name_length + 1, "%s", src); + /* Wait until SSI is processed. */ + httpsrv_script_handler(server, session, HTTPSRV_SSI_CALLBACK, fname); + memset(session->response.script_buffer, 0, sizeof(session->response.script_buffer)); + } + retval = name_length + term_length; + } + return (retval); +} + +/* +** Write data to buffer. If buffer is full during write flush it to client. +** +** IN: +** HTTPSRV_SESSION_STRUCT *session - session used for write. +** char* src - pointer to data to send. +** int32_t length - length of data in bytes. +** +** OUT: +** none +** +** Return Value: +** int32_t - number of bytes written. +*/ +int32_t httpsrv_write(HTTPSRV_SESSION_STRUCT *session, char *src, int32_t length) +{ + uint32_t space = HTTPSRV_SES_BUF_SIZE_PRV - session->buffer.offset; + int32_t retval = length; + uint32_t n_send; + + /* User buffer is bigger than session buffer - send user data directly */ + if (length > HTTPSRV_SES_BUF_SIZE_PRV) + { + /* If there are some data already buffered send them to client first */ + if (httpsrv_ses_flush(session) == -1) + { + return (-1); + } + else + { + return (httpsrv_send(session, src, length, 0)); + } + } + + /* No space in buffer - make some */ + if ((space < length) && (httpsrv_ses_flush(session) == -1)) + { + return (-1); + } + + /* Now we can save user data to buffer and eventually send them to client */ + space = HTTPSRV_SES_BUF_SIZE_PRV - session->buffer.offset; + n_send = (space < length) ? space : length; + memcpy(session->buffer.data + session->buffer.offset, src, n_send); + session->buffer.offset += n_send; + + if (session->buffer.offset >= HTTPSRV_SES_BUF_SIZE_PRV) + { + if (httpsrv_ses_flush(session) == -1) + { + return (-1); + } + else + { + retval = n_send; + } + } + + return (retval); +} + +/* +** Read data from HTTP server. +** +** First copy data from session buffer if there are any and then read rest from socket if required. +** +** IN: +** HTTPSRV_SESSION_STRUCT *session - session to use for reading. +** char *dst - user buffer to read to. +** int32_t len - size of user buffer. +** +** OUT: +** none +** +** Return Value: +** int - number of bytes read. +*/ +int32_t httpsrv_read(HTTPSRV_SESSION_STRUCT *session, char *dst, int32_t len) +{ + int read = 0; + uint32_t data_size = session->buffer.offset; + + /* If there are any data in buffer copy them to user buffer */ + if (data_size > 0) + { + uint32_t length = (data_size < len) ? data_size : len; + uint32_t tail = HTTPSRV_SES_BUF_SIZE_PRV - length; + + memcpy(dst, session->buffer.data, length); + memmove(session->buffer.data, session->buffer.data + length, tail); + memset(session->buffer.data + tail, 0, length); + session->buffer.offset -= length; + read = length; + } + + /* If there is some space remaining in user buffer try to read from socket */ + while (read < len) + { + int received; + + received = httpsrv_recv(session, dst + read, len - read, 0); + if (received > 0) /* 0 means connection is closed.*/ + { + read += received; + } + else + { + break; + } + } + + return (read); +} + +/* +** Get string for ID from table. +** +** IN: +** HTTPSRV_TABLE_ROW *table - table to be searched +** int32_t id - search ID +** +** OUT: +** none +** +** Return Value: +** char* - pointer to result. NULL if not found. +*/ +static char *httpsrv_get_table_str(HTTPSRV_TABLE_ROW *table, const int32_t id) +{ + HTTPSRV_TABLE_ROW *ptr = table; + + while ((ptr->str) && (id != ptr->id)) + { + ptr++; + } + return (ptr->str); +} + +/* +** Print data to session +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session used for transmission +** char* format - format for snprintf function +** void ... - parameters to print +** +** OUT: +** none +** +** Return Value: +** none +*/ +static void httpsrv_print(HTTPSRV_SESSION_STRUCT *session, char *format, ...) +{ + va_list ap; + char *buffer = session->buffer.data; + int buffer_space; + +#if !defined ( __CC_ARM ) /* Workarounfd for Keil vsnprintf()*/ + uint32_t req_space = 0; + + buffer_space = HTTPSRV_SES_BUF_SIZE_PRV - session->buffer.offset; + + va_start(ap, format); + /* First we always test if there is enough space in buffer. If there is not, + ** we flush it first and then write. */ + req_space = vsnprintf(buffer + session->buffer.offset, 0, format, ap); + va_end(ap); + + if (req_space > buffer_space) +#endif + { + httpsrv_ses_flush(session); + buffer_space = HTTPSRV_SES_BUF_SIZE_PRV; + } + va_start(ap, format); + session->buffer.offset += vsnprintf(buffer + session->buffer.offset, buffer_space, format, ap); + va_end(ap); +} + +/* +** Send data from session buffer to client. +** +** IN: +** HTTPSRV_SESSION_STRUCT *session - session to use. +** +** OUT: +** none +** +** Return Value: +** int - number of bytes send. +*/ +int32_t httpsrv_ses_flush(HTTPSRV_SESSION_STRUCT *session) +{ + int32_t send_total; + uint32_t data_length; + char *data; + + send_total = 0; + data_length = session->buffer.offset; + data = session->buffer.data; + + while (send_total < data_length) + { + int send_now; + + send_now = httpsrv_send(session, data + send_total, data_length - send_total, 0); + if (send_now == -1) + { + send_total = -1; + break; + } + send_total += send_now; + } + session->buffer.offset = 0; + + return (send_total); +} + +/* +** Read HTTP method +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer. +** HTTPSRV_STRUCT *server - pointer to server structure (needed for session parameters). +** char* buffer - pointer to beginning of line with request. +** +** OUT: +** none +** +** Return Value: +** none +*/ +int32_t httpsrv_req_line(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session, char *buffer) +{ + char *uri_begin = NULL; + char *uri_end = NULL; + uint32_t written; + + if (strncmp(buffer, "GET ", 4) == 0) + { + session->request.method = HTTPSRV_REQ_GET; + } + else if (strncmp(buffer, "POST ", 5) == 0) + { + session->request.method = HTTPSRV_REQ_POST; + } + else if (strncmp(buffer, "HEAD ", 5) == 0) + { + session->request.method = HTTPSRV_REQ_HEAD; + } + else /* Unknown method - not implemented response */ + { + session->response.status_code = HTTPSRV_CODE_NOT_IMPLEMENTED; + return (HTTPSRV_ERR); + } + + /* Parse remaining part of line */ + uri_begin = strchr(buffer, ' '); + + if (uri_begin != NULL) + { + uri_begin++; + uri_end = strchr(uri_begin, ' '); + if (uri_end != NULL) + { + *uri_end = '\0'; + } + } + else + { + session->request.path[0] = '\0'; + session->response.status_code = HTTPSRV_CODE_BAD_REQ; + return (HTTPSRV_ERR); + } + + /* Pre-process URI */ + httpsrv_url_decode(uri_begin); + httpsrv_url_cleanup(uri_begin); + + written = snprintf(session->request.path, server->params.max_uri, "%s", uri_begin); + /* Check if whole URI is saved in buffer */ + if (written > server->params.max_uri - 1) + { + session->request.path[0] = '\0'; + /* URI is too long so we set proper status code for response */ + session->response.status_code = HTTPSRV_CODE_URI_TOO_LONG; + return (HTTPSRV_ERR); + } + return (HTTPSRV_OK); +} + +/* +** Process one line of HTTP request header +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer. +** HTTPSRV_STRUCT *server - pointer to server structure (needed for session parameters). +** char* buffer - pointer to beginning of line with request. +** +** OUT: +** none +** +** Return Value: +** none +*/ +int32_t httpsrv_req_hdr(HTTPSRV_SESSION_STRUCT *session, char *buffer) +{ + char *param_ptr = NULL; + int32_t retval; + + retval = HTTPSRV_OK; + + if (strncmp(buffer, "Host: ", 6) == 0) + { + /* + * We only do this to check request validity. + * Virtual hosts are not supported. + */ + /* + param_ptr = buffer+6; + strcpy(session->host, param_ptr); + */ + session->flags |= HTTPSRV_FLAG_HAS_HOST; + } + else if (strncmp(buffer, "Connection: ", 12) == 0) + { + param_ptr = buffer + 12; + + if ((session->flags & HTTPSRV_FLAG_KEEP_ALIVE_ENABLED) && + ((strstr(param_ptr, "Keep-Alive")) || (strstr(param_ptr, "keep-alive")))) + { + session->flags |= HTTPSRV_FLAG_IS_KEEP_ALIVE; + } + else + { + session->flags &= ~HTTPSRV_FLAG_IS_KEEP_ALIVE; + } + if (strstr(param_ptr, "Upgrade")) + { + session->flags |= HTTPSRV_FLAG_DO_UPGRADE; + } + } + else if (strncmp(buffer, "Content-Length: ", 16) == 0) + { + unsigned long int value; + + param_ptr = buffer + 16; + value = strtoul(param_ptr, NULL, 10); + if (value == ULONG_MAX) + { + retval = HTTPSRV_ERR; + goto EXIT; + } + session->request.content_length = (uint32_t)value; + session->flags |= HTTPSRV_FLAG_HAS_CONTENT_LENGTH; + } + else if (strncmp(buffer, "Content-Type: ", 14) == 0) + { + param_ptr = buffer + 14; + + session->request.content_type = httpsrv_get_table_int((HTTPSRV_TABLE_ROW *)content_type, param_ptr); + /* If content type is unknown, treat it as octet/stream */ + if (session->request.content_type == 0) + { + session->request.content_type = HTTPSRV_CONTENT_TYPE_OCTETSTREAM; + } + } +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + else if (strncmp(buffer, "Upgrade: ", 9) == 0) + { + param_ptr = buffer + 9; + if (lwip_strnicmp(param_ptr, "websocket", 9) == 0) + { + session->request.upgrade_to = HTTPSRV_WS_PROTOCOL; + session->ws_handshake = httpsrv_ws_alloc(session); + if (session->ws_handshake == NULL) + { + retval = HTTPSRV_ERR; + goto EXIT; + } + } + } +#endif + else if (strncmp(buffer, "Authorization: ", 15) == 0) + { + param_ptr = buffer + 15; + if (strncmp(param_ptr, "Basic ", 6) == 0) + { + char *user; + char *pass; + + user = NULL; + pass = NULL; + if (httpsrv_basic_auth(param_ptr + 6, &user, &pass) == HTTPSRV_OK) + { + session->request.auth.user_id = user; + session->request.auth.password = pass; + } + } + } +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + else if (strncmp(buffer, "Sec-WebSocket-Key: ", 19) == 0) + { + param_ptr = buffer + 19; + if (strlen(param_ptr) == WS_KEY_LENGTH) + { + session->ws_handshake = httpsrv_ws_alloc(session); + if (session->ws_handshake == NULL) + { + retval = HTTPSRV_ERR; + goto EXIT; + } + memcpy(session->ws_handshake->key, param_ptr, WS_KEY_LENGTH); + } + } + else if (strncmp(buffer, "Sec-WebSocket-Protocol: ", 24) == 0) + { + char *substring; + + param_ptr = buffer + 24; + substring = strtok(param_ptr, ", ;\t"); + session->ws_handshake = httpsrv_ws_alloc(session); + if (session->ws_handshake == NULL) + { + retval = HTTPSRV_ERR; + goto EXIT; + } + while (substring != NULL) + { + if (strcmp(substring, "chat") == 0) + { + session->ws_handshake->protocols |= WS_CHAT_PROTOCOL_MASK; + } + else if (strcmp(substring, "superchat") == 0) + { + session->ws_handshake->protocols |= WS_SUPERCHAT_PROTOCOL_MASK; + } + substring = strtok(NULL, ", ;"); + } + } + else if (strncmp(buffer, "Sec-WebSocket-Version: ", 23) == 0) + { + param_ptr = buffer + 23; + session->ws_handshake = httpsrv_ws_alloc(session); + if (session->ws_handshake == NULL) + { + retval = HTTPSRV_ERR; + goto EXIT; + } + session->ws_handshake->version = strtoul(param_ptr, NULL, 10); + } +#endif +EXIT: + return (retval); +} + +/* +** Get realm for requested path +** +** IN: +** char* path - search path. +** HTTPSRV_STRUCT* server - pointer to server structure (needed for session parameters). +** +** OUT: +** none +** +** Return Value: +** HTTPSRV_AUTH_REALM_STRUCT* - authentication realm for requested path. Null if not found. +*/ +const HTTPSRV_AUTH_REALM_STRUCT *httpsrv_req_realm(HTTPSRV_STRUCT *server, char *path) +{ + const HTTPSRV_AUTH_REALM_STRUCT *table; + + table = server->params.auth_table; + + if (table == NULL) + { + return (NULL); + } + + while ((table->path != NULL) && (strstr(path, table->path) == NULL)) + { + table++; + } + + return (table->path ? table : NULL); +} + +/* Get query string */ +char *httpsrv_get_query(char *src) +{ + char *retval = NULL; + + retval = strchr(src, '?'); + if (NULL != retval) + { + *retval = '\0'; + retval++; + } + return (retval); +} + +/* +** Function for checking of HTTP request validity +** +** IN: +** HTTPSRV_SESSION_STRUCT *session - session to check +** OUT: +** none +** +** Return Value: +** uint32_t - Status code. +*/ +uint32_t httpsrv_req_check(HTTPSRV_SESSION_STRUCT *session) +{ + char *backslash; + HTTPSRV_REQ_STRUCT *request; + + request = &session->request; + /* If method is not implemented return without request processing */ + if (request->method == HTTPSRV_REQ_UNKNOWN) + { + return (HTTPSRV_CODE_NOT_IMPLEMENTED); + } + /* We need content length for post requests */ + else if ((request->method == HTTPSRV_REQ_POST) && !(session->flags & HTTPSRV_FLAG_HAS_CONTENT_LENGTH)) + { + return (HTTPSRV_CODE_NO_LENGTH); + } + /* Check request path and if there was host field in request header */ + backslash = strrchr(request->path, '/'); + if ((backslash == NULL) || !(session->flags & HTTPSRV_FLAG_HAS_HOST)) + { + /* We have invalid request */ + return (HTTPSRV_CODE_BAD_REQ); + } + /* Check if upgrade request is valid */ + if (session->flags & HTTPSRV_FLAG_DO_UPGRADE) + { +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + /* Only WebSocket upgrade is supported */ + if ((request->upgrade_to != HTTPSRV_WS_PROTOCOL) || (session->ws_handshake->version > WS_PROTOCOL_VERSION) || + (strlen(session->ws_handshake->key) != WS_KEY_LENGTH)) + { + return (HTTPSRV_CODE_BAD_REQ); + } + if (session->ws_handshake->version < WS_PROTOCOL_VERSION) + { + return (HTTPSRV_CODE_UPGRADE_REQUIRED); + } +#else + return (HTTPSRV_CODE_BAD_REQ); +#endif + } + return (HTTPSRV_CODE_OK); +} + +/* +** Check user authentication credentials +** +** IN: +** HTTPSRV_AUTH_REALM_STRUCT* realm - search realm. +** HTTPSRV_AUTH_USER_STRUCT* user - user to authenticate. +** +** OUT: +** none +** +** Return Value: +** int - 1 if user is successfully authenticated, zero otherwise. +*/ +int httpsrv_check_auth(const HTTPSRV_AUTH_REALM_STRUCT *realm, const HTTPSRV_AUTH_USER_STRUCT *user) +{ + const HTTPSRV_AUTH_USER_STRUCT *users = NULL; + + if ((realm == NULL) || (user == NULL)) + { + return (0); + } + + users = realm->users; + + while (users->user_id != NULL) + { + if (!strcmp(users->user_id, user->user_id) && !strcmp(users->password, user->password)) + { + return (1); + } + users++; + } + return (0); +} + +/* + * Decode URL encoded string. + */ +void httpsrv_url_decode(char *url) +{ + char *src = url; + char *dst = url; + + while (*src != '\0') + { + if ((*src == '%') && (isxdigit((unsigned char)*(src + 1))) && (isxdigit((unsigned char)*(src + 2)))) + { + *src = *(src + 1); + *(src + 1) = *(src + 2); + *(src + 2) = '\0'; + *dst++ = strtol(src, NULL, 16); + src += 3; + } + else + { + *dst++ = *src++; + } + } + *dst = '\0'; +} + +/* + * URL cleanup (remove invalid path segments - /./ and /../) + */ +void httpsrv_url_cleanup(char *url) +{ + char *src = url; + char *dst = url; + + while (*src != '\0') + { + if ((src[0] == '/') && (src[1] == '.')) + { + if (src[2] == '/') + { + src += 2; + } + else if ((src[2] == '.') && (src[3] == '/')) + { + src += 3; + } + } + *dst++ = *src++; + } + *dst = '\0'; +} + +static int httpsrv_basic_auth(char *auth_string, char **user_ptr, char **pass_ptr) +{ + uint32_t decoded_length; + uint32_t length; + int retval; + char *user; + char *pass; + + pass = NULL; + user = NULL; + *user_ptr = NULL; + *pass_ptr = NULL; + retval = HTTPSRV_OK; + decoded_length = 0; + + length = strlen(auth_string); + if ((length == 0) || (length % 4)) + { + retval = HTTPSRV_ERR; + goto EXIT; + } + if (!isbase64((const char *)auth_string)) + { + retval = HTTPSRV_ERR; + goto EXIT; + } + /* evaluate number of bytes required for worst case (no padding) */ + decoded_length = (length / 4) * 3 + 1; + user = httpsrv_mem_alloc_zero(sizeof(char) * decoded_length); + if (user != NULL) + { + base64_decode(user, auth_string, decoded_length); + *user_ptr = user; + } + else + { + retval = HTTPSRV_ERR; + goto EXIT; + } + + pass = strchr(user, ':'); + if (pass != NULL) + { + *pass = '\0'; + pass = pass + 1; + *pass_ptr = pass; + } +EXIT: + return (retval); +} + +/* + * Join root directory and relative path. + */ +char *httpsrv_path_create(const char *root, char *filename) +{ + char *path; + char *tmp; + uint32_t root_length; + uint32_t filename_length; + uint32_t path_length; + + root_length = strlen(root); + filename_length = strlen(filename); + /* + * Length is worst case - +1 for terminating zero and +1 for potential + * missing backslash + */ + path_length = root_length + filename_length + 2; + tmp = filename; + + /* Correct path slashes */ + while (*tmp != '\0') + { + if (*tmp == '/') + { + *tmp = '\\'; + } + tmp++; + } + + path = (char *)httpsrv_mem_alloc_zero(path_length); + if (path != NULL) + { + memcpy(path, root, root_length); + if ((root[root_length - 1] != '\\') && (filename[0] != '\\')) + { + path[root_length] = '\\'; + root_length++; + } + memcpy(path + root_length, filename, filename_length); + } + return (path); +} + +/* +** Get ID for string from table +** +** IN: +** HTTPSRV_TABLE_ROW *tbl - table to be searched +** char* str - search string +** uint32_t len - length of string +** +** OUT: +** none +** +** Return Value: +** ID corresponding to searched string. Zero if not found. +*/ +static int httpsrv_get_table_int(HTTPSRV_TABLE_ROW *table, char *str) +{ + HTTPSRV_TABLE_ROW *ptr = table; + + while ((ptr->id) && (!strstr(str, ptr->str))) + { + ptr++; + } + return (ptr->id); +} + +void *httpsrv_mem_alloc_zero(size_t xSize) +{ + void *result = httpsrv_mem_alloc(xSize); + if (result) + { + memset(result, 0, xSize); + } + return result; +} diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_supp.h b/middleware/lwip/src/apps/httpsrv/httpsrv_supp.h new file mode 100644 index 0000000..190980c --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_supp.h @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* +* HTTPSRV support functions header. +*/ + +#ifndef HTTP_SUPP_H_ +#define HTTP_SUPP_H_ + +#define ERR_PAGE_FORMAT "%s\n

%s

\n\n" +#include "httpsrv_prv.h" +#include "httpsrv.h" + +#ifdef __cplusplus +extern "C" { +#endif + +int32_t httpsrv_read(HTTPSRV_SESSION_STRUCT *session, char *dst, int32_t len); +int32_t httpsrv_write(HTTPSRV_SESSION_STRUCT *session, char *src, int32_t len); +int32_t httpsrv_ses_flush(HTTPSRV_SESSION_STRUCT *session); + +void httpsrv_sendhdr(HTTPSRV_SESSION_STRUCT *session, int32_t content_len, bool has_entity); +HTTPSRV_SES_STATE httpsrv_sendfile(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session); +void httpsrv_send_err_page(HTTPSRV_SESSION_STRUCT *session, const char *title, const char *text); + +int32_t httpsrv_req_hdr(HTTPSRV_SESSION_STRUCT *session, char *buffer); +int32_t httpsrv_req_line(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session, char *buffer); +uint32_t httpsrv_req_check(HTTPSRV_SESSION_STRUCT *session); + +const HTTPSRV_AUTH_REALM_STRUCT *httpsrv_req_realm(HTTPSRV_STRUCT *server, char *path); +int httpsrv_check_auth(const HTTPSRV_AUTH_REALM_STRUCT *realm, const HTTPSRV_AUTH_USER_STRUCT *user); +void httpsrv_destroy_server(HTTPSRV_STRUCT *server); +HTTPSRV_STRUCT *httpsrv_create_server(HTTPSRV_PARAM_STRUCT *params); +#if HTTPSRV_CFG_WEBSOCKET_ENABLED +const WS_PLUGIN_STRUCT *httpsrv_get_ws_plugin(const WS_PLUGIN_STRUCT *table, char *resource); +#endif +int httpsrv_recv(HTTPSRV_SESSION_STRUCT *session, char *buffer, size_t length, int flags); +int httpsrv_send(HTTPSRV_SESSION_STRUCT *session, const char *buffer, size_t length, int flags); +char *httpsrv_get_query(char *src); +int httpsrv_wait_for_conn(HTTPSRV_STRUCT *server); +int httpsrv_accept(int sock); +void httpsrv_abort(int sock); + +void *httpsrv_mem_alloc_zero(size_t xSize); +void httpsrv_url_decode(char *url); +void httpsrv_url_cleanup(char *url); +char *httpsrv_path_create(const char *root, char *filename); + +#ifdef __cplusplus +} +#endif + +#endif /* HTTP_SUPP_H_ */ diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_task.c b/middleware/lwip/src/apps/httpsrv/httpsrv_task.c new file mode 100644 index 0000000..e17d235 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_task.c @@ -0,0 +1,833 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* +* HTTPSRV tasks and session processing. +*/ + +#include "httpsrv.h" +#include "httpsrv_prv.h" +#include "httpsrv_supp.h" +#include "httpsrv_script.h" +#include "lwip/def.h" + +#define HTTPSRV_SESSION_TASK_NAME "HTTP server session" + +#if HTTPSRV_CFG_WEBSOCKET_ENABLED +static void httpsrv_plugin_run(void *server_ptr, void *session_ptr); +#endif + +static int httpsrv_req_read(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session); +static HTTPSRV_SES_STATE httpsrv_req_do(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session); +static HTTPSRV_SES_STATE httpsrv_response(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session); + +static inline void httpsrv_ses_set_state(HTTPSRV_SESSION_STRUCT *session, HTTPSRV_SES_STATE new_state); +static HTTPSRV_SESSION_STRUCT *httpsrv_ses_alloc(HTTPSRV_STRUCT *server, int sock); +static void httpsrv_ses_free(HTTPSRV_SESSION_STRUCT *session); +static void httpsrv_ses_close(HTTPSRV_SESSION_STRUCT *session); +static int httpsrv_ses_init(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session, const int sock); +static void httpsrv_session_task(void *arg); + +/* +** HTTPSRV main task which creates new task for each new client request +*/ +void httpsrv_server_task(void *arg) +{ + HTTPSRV_STRUCT *server = (HTTPSRV_STRUCT *)arg; + + while (1) + { + int i; + + int new_sock; + + /* limit number of opened sessions */ + sys_arch_sem_wait(&server->ses_cnt, 0); + + /* Get socket with incoming connection (IPv4 or IPv6) */ + int connsock = httpsrv_wait_for_conn(server); + if (server->valid == HTTPSRV_INVALID) + { + break; + } + if (connsock == -1) + { + taskYIELD(); + } + else + { + new_sock = httpsrv_accept(server->sock); + if (new_sock < 0) + { + sys_sem_signal(&server->ses_cnt); + /* We probably run out of sockets. Wait some time then try again to prevent session tasks resource + * starvation */ + sys_msleep(100); + } + else + { + /* Find empty session */ + for (i = 0; i < server->params.max_ses; i++) + { + if (server->session[i] == NULL) + { + break; + } + } + + if (i != server->params.max_ses) + { + HTTPSRV_SESSION_STRUCT *session; + + /* Allocate session */ + session = httpsrv_ses_alloc(server, new_sock); + if (session) + { + HTTPSRV_SES_TASK_PARAM *ses_param; + + /* Allocate session task parameter */ + ses_param = httpsrv_mem_alloc_zero(sizeof(HTTPSRV_SES_TASK_PARAM)); + + if (ses_param != NULL) + { + if (ERR_OK == httpsrv_ses_init(server, session, new_sock)) + { + /* Disable keep-alive for last session so we have at least one session free (not blocked by + * keep-alive timeout) */ + if (i == server->params.max_ses - 1) + { + session->flags &= ~HTTPSRV_FLAG_KEEP_ALIVE_ENABLED; + } + + server->session[i] = session; + + ses_param->server = server; + ses_param->session_p = &server->session[i]; + + /* Try to create task for session */ + if (sys_thread_new(HTTPSRV_SESSION_TASK_NAME, httpsrv_session_task, ses_param, + #if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + (server->tls_ctx != NULL) ? HTTPSRV_CFG_HTTPS_SESSION_STACK_SIZE : HTTPSRV_CFG_HTTP_SESSION_STACK_SIZE, + #else + HTTPSRV_CFG_HTTP_SESSION_STACK_SIZE, + #endif + server->params.task_prio) == NULL) + { + httpsrv_ses_close(session); + httpsrv_ses_free(session); + server->session[i] = NULL; + sys_sem_signal(&server->ses_cnt); + httpsrv_mem_free(ses_param); + } + } + else + { + httpsrv_ses_close(session); + httpsrv_ses_free(session); + sys_sem_signal(&server->ses_cnt); + httpsrv_mem_free(ses_param); + } + } + else + { + httpsrv_ses_close(session); + httpsrv_ses_free(session); + httpsrv_abort(new_sock); + sys_sem_signal(&server->ses_cnt); + } + } + else + { + httpsrv_abort(new_sock); + sys_sem_signal(&server->ses_cnt); + } + } + else + { + httpsrv_abort(new_sock); + sys_sem_signal(&server->ses_cnt); + } + } + } + } + /* Server release.*/ + httpsrv_destroy_server(server); + server->server_tid = 0; + + vTaskDelete(NULL); +} + +/* +** Session task. +** This task is responsible for session creation, processing and cleanup. +*/ +static void httpsrv_session_task(void *arg) +{ + HTTPSRV_SES_TASK_PARAM *ses_param = (HTTPSRV_SES_TASK_PARAM *)arg; + HTTPSRV_STRUCT *server = ses_param->server; + HTTPSRV_SESSION_STRUCT *session = *ses_param->session_p; + + while (session->valid) + { + /* Run state machine for session */ + session->process_func(server, session); + taskYIELD(); + } + httpsrv_ses_close(session); + httpsrv_ses_free(session); + *ses_param->session_p = NULL; + + /* Cleanup and end task */ + httpsrv_mem_free(ses_param); + sys_sem_signal(&server->ses_cnt); + vTaskDelete(NULL); +} + +/* +** Function for session allocation +** +** IN: +** HTTPSRV_STRUCT *server - pointer to server structure (needed for session parameters). +** +** OUT: +** none +** +** Return Value: +** HTTPSRV_SESSION_STRUCT* - pointer to allocated session. Non-zero if allocation was OK, NULL otherwise +*/ +static HTTPSRV_SESSION_STRUCT *httpsrv_ses_alloc(HTTPSRV_STRUCT *server, int sock) +{ + HTTPSRV_SESSION_STRUCT *session = NULL; + + if (server) + { + session = httpsrv_mem_alloc_zero(sizeof(HTTPSRV_SESSION_STRUCT)); + if (session) + { + session->sock = -1; + + /* Alloc URI */ + session->request.path = httpsrv_mem_alloc_zero(server->params.max_uri + 1); + if (NULL == session->request.path) + { + goto ERROR; + } + + /* Alloc session buffer */ + session->buffer.data = httpsrv_mem_alloc_zero(sizeof(char) * HTTPSRV_SES_BUF_SIZE_PRV); + if (NULL == session->buffer.data) + { + goto ERROR; + } + #if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + if (server->tls_ctx != 0) + { + session->tls_sock = httpsrv_tls_socket(server->tls_ctx, sock); + if (session->tls_sock == 0) + { + goto ERROR; + } + } + #endif + + } + } + + return session; + +ERROR: + if (session->request.path) + { + httpsrv_mem_free(session->request.path); + session->request.path = NULL; + } + if (session->buffer.data) + { + httpsrv_mem_free(session->buffer.data); + session->buffer.data = NULL; + } + httpsrv_mem_free(session); + return (NULL); +} + +/* +** Function used to free session structure +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer +** +** OUT: +** none +** +** Return Value: +** none +*/ +static void httpsrv_ses_free(HTTPSRV_SESSION_STRUCT *session) +{ + if (session) + { + if (session->request.path) + { + httpsrv_mem_free(session->request.path); + } + if (session->request.auth.user_id) + { + httpsrv_mem_free(session->request.auth.user_id); + } + if (session->buffer.data) + { + httpsrv_mem_free(session->buffer.data); + } +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + if (session->ws_handshake) + { + httpsrv_mem_free(session->ws_handshake); + } +#endif /* HTTPSRV_CFG_WEBSOCKET_ENABLED */ + httpsrv_mem_free(session); + } +} + +/* +** Function used to init session structure +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer +** HTTPSRV_STRUCT *server - pointer to server structure (needed for session parameters) +** const int sock - socket handle used for communication with client +** +** OUT: +** none +** +** Return Value: +** error code - ERR_MEM or ERR_OK +*/ +static int httpsrv_ses_init(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session, int sock) +{ + int error = ERR_MEM; + if (server && session) + { + session->state = HTTPSRV_SES_WAIT_REQ; + session->sock = sock; + session->valid = HTTPSRV_VALID; + session->timeout = HTTPSRV_CFG_SES_TIMEOUT; + session->flags |= HTTPSRV_FLAG_PROCESS_HEADER; + if (HTTPSRV_CFG_KEEPALIVE_ENABLED) + { + session->flags |= HTTPSRV_FLAG_KEEP_ALIVE_ENABLED | HTTPSRV_FLAG_IS_KEEP_ALIVE; + } + session->time = sys_now(); + session->process_func = httpsrv_http_process; + error = sys_sem_new(&session->lock, 1); + } + return error; +} + +/* +** Function used to close session +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer +** +** OUT: +** none +** +** Return Value: +** none +*/ +static void httpsrv_ses_close(HTTPSRV_SESSION_STRUCT *session) +{ + if (session != NULL) + { + if (session->response.file) + { + HTTPSRV_FS_close(session->response.file); + session->response.file = NULL; + } + #if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + if (session->tls_sock != 0) + { + httpsrv_tls_shutdown(session->tls_sock); + session->tls_sock = 0; + } + #endif + if (session->sock != -1) + { + lwip_shutdown(session->sock, SHUT_WR); + lwip_close(session->sock); + session->sock = -1; + } + if (session->lock != NULL) + { + sys_sem_free(&session->lock); + } + } +} + +/* +** HTTP session state machine +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer. +** HTTPSRV_STRUCT *server - pointer to server structure (needed for session parameters). +** +** OUT: +** none +** +** Return Value: +** none +*/ +void httpsrv_http_process(void *server_ptr, void *session_ptr) +{ + uint32_t time_interval; + uint32_t time_now; + int result; + HTTPSRV_STRUCT *server = (HTTPSRV_STRUCT *)server_ptr; + HTTPSRV_SESSION_STRUCT *session = (HTTPSRV_SESSION_STRUCT *)session_ptr; + + if (!session->valid) + { + session->state = HTTPSRV_SES_CLOSE; + return; + } + + /* check session timeout */ + time_now = sys_now(); + time_interval = time_now - session->time; + if (time_interval > session->timeout) + { + if (session->script_tid != 0) + { + vTaskDelete(session->script_tid); + session->script_tid = 0; + } + session->state = HTTPSRV_SES_CLOSE; + } + + switch (session->state) + { + case HTTPSRV_SES_WAIT_REQ: + result = httpsrv_req_read(server, session); + + if (result == HTTPSRV_ERR) + { + httpsrv_ses_set_state(session, HTTPSRV_SES_CLOSE); + } + else if (result == HTTPSRV_FAIL) + { + httpsrv_ses_set_state(session, HTTPSRV_SES_RESP); + } + else if ((result == HTTPSRV_OK) && !(session->flags & HTTPSRV_FLAG_PROCESS_HEADER)) + { + session->response.status_code = httpsrv_req_check(session); + if (session->response.status_code != HTTPSRV_CODE_OK) + { + httpsrv_ses_set_state(session, HTTPSRV_SES_RESP); + } + else + { + session->state = HTTPSRV_SES_PROCESS_REQ; + } + } + break; + case HTTPSRV_SES_PROCESS_REQ: + httpsrv_ses_set_state(session, httpsrv_req_do(server, session)); + break; + + case HTTPSRV_SES_RESP: + httpsrv_ses_set_state(session, httpsrv_response(server, session)); + session->time = sys_now(); + break; + + case HTTPSRV_SES_END_REQ: + if (!(session->flags & HTTPSRV_FLAG_IS_KEEP_ALIVE)) + { + httpsrv_ses_set_state(session, HTTPSRV_SES_CLOSE); + } + else + { + /* Re-init session */ + httpsrv_ses_set_state(session, HTTPSRV_SES_WAIT_REQ); + if (session->response.file) + { + HTTPSRV_FS_close(session->response.file); + session->response.file = NULL; + } + memset(&session->response, 0, sizeof(session->response)); + if (session->request.auth.user_id != NULL) + { + httpsrv_mem_free(session->request.auth.user_id); + } + session->request.auth.user_id = NULL; + session->request.auth.password = NULL; + session->time = sys_now(); + session->timeout = HTTPSRV_CFG_KEEPALIVE_TIMEOUT; + session->flags = HTTPSRV_FLAG_IS_KEEP_ALIVE | HTTPSRV_FLAG_PROCESS_HEADER; + } + break; + case HTTPSRV_SES_CLOSE: + default: + session->valid = HTTPSRV_INVALID; + break; + } +} + +/* +** Function for request parsing +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer. +** HTTPSRV_STRUCT *server - pointer to server structure (needed for session parameters). +** +** OUT: +** none +** +** Return Value: +** int - zero if request is valid, negative value if invalid. +*/ +static int httpsrv_req_read(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session) +{ + char *line_start; + int read; + int retval; + char *line_end; + uint32_t unprocessed_size; + + line_start = session->buffer.data; + line_end = NULL; + retval = HTTPSRV_OK; + + /* Read data */ + read = httpsrv_recv(session, session->buffer.data + session->buffer.offset, + HTTPSRV_SES_BUF_SIZE_PRV - session->buffer.offset, 0); + if (read < 1) /* 0 means connection is closed.*/ + { + int optval; + socklen_t optlen = sizeof(optval); + + if ((lwip_getsockopt(session->sock, SOL_SOCKET, SO_ERROR, &optval, &optlen) == 0) && (optval == EWOULDBLOCK)) + { + retval = HTTPSRV_OK; + } + else + { + retval = HTTPSRV_ERR; + } + goto EXIT; + } + + unprocessed_size = read; + /* Process buffer line by line. End of line is \n or \r\n */ + while (1) + { + uint32_t max_length; + + max_length = (session->buffer.data + HTTPSRV_SES_BUF_SIZE_PRV) - line_start; + line_end = memchr(line_start, (int)'\n', max_length); + if (line_end == NULL) + { + break; + } + + /* Null terminate the line */ + *line_end = '\0'; + if ((line_end != session->buffer.data) && (*(line_end - 1) == '\r')) + { + *(line_end - 1) = '\0'; + } + session->request.lines++; + /* Subtract line length from size of unprocessed data */ + unprocessed_size -= (line_end - line_start + 1) - session->request.pending; + session->request.pending = 0; + + /* Found an empty line => end of header */ + if (strlen(line_start) == 0) + { + session->flags &= ~HTTPSRV_FLAG_PROCESS_HEADER; + session->request.lines = 0; + break; + } + + if (session->request.lines == 1) + { + if (httpsrv_req_line(server, session, line_start) != HTTPSRV_OK) + { + session->buffer.offset = 0; + retval = HTTPSRV_FAIL; + goto EXIT; + } + } + else + { + if (httpsrv_req_hdr(session, line_start) != HTTPSRV_OK) + { + session->buffer.offset = 0; + retval = HTTPSRV_FAIL; + goto EXIT; + } + } + /* Set start of next line after end of current line */ + line_start = line_end + 1; + /* Check buffer boundary */ + if (line_start > (session->buffer.data + HTTPSRV_SES_BUF_SIZE_PRV)) + { + line_start = session->buffer.data + HTTPSRV_SES_BUF_SIZE_PRV; + } + } + + session->request.pending += unprocessed_size; + if (session->request.pending >= HTTPSRV_SES_BUF_SIZE_PRV) + { + session->response.status_code = HTTPSRV_CODE_FIELD_TOO_LARGE; + session->buffer.offset = 0; + retval = HTTPSRV_FAIL; + goto EXIT; + } + + /* There were no valid lines in buffer */ + if ((unprocessed_size >= HTTPSRV_SES_BUF_SIZE_PRV) && (session->request.lines == 0)) + { + session->buffer.offset = 0; + } + /* If there are some unprocessed data, move it at the beginning of buffer/set correct buffer offset. */ + else if (unprocessed_size != 0) + { + /* Copy rest of data to beginning of buffer and save offset for next reading. */ + if (line_end != NULL) + { + memmove(session->buffer.data, line_end + 1, unprocessed_size); + } + else + { + memmove(session->buffer.data, line_start, unprocessed_size); + } + session->buffer.offset = unprocessed_size; + } + /* Clear the buffer so we don't have some old data there. */ + memset(session->buffer.data + session->buffer.offset, 0, HTTPSRV_SES_BUF_SIZE_PRV - session->buffer.offset); +EXIT: + return (retval); +} + +/* +** Function for request processing +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer. +** HTTPSRV_STRUCT *server - pointer to server structure (needed for session parameters). +** +** OUT: +** none +** +** Return Value: +** none +*/ + +static HTTPSRV_SES_STATE httpsrv_req_do(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session) +{ + char *suffix; + const char *root_dir = NULL; + char *full_path; + HTTPSRV_SES_STATE retval; + + retval = HTTPSRV_SES_RESP; + + /* Check authentication */ + session->response.auth_realm = httpsrv_req_realm(server, session->request.path); + if (session->response.auth_realm != NULL) + { + if (!httpsrv_check_auth(session->response.auth_realm, &session->request.auth)) + { + session->response.status_code = HTTPSRV_CODE_UNAUTHORIZED; + if (session->request.auth.user_id != NULL) + { + httpsrv_mem_free(session->request.auth.user_id); + session->request.auth.user_id = NULL; + session->request.auth.password = NULL; + } + goto EXIT; + } + } + + root_dir = server->params.root_dir; + + /* Save query string */ + session->request.query = httpsrv_get_query(session->request.path); + + /* Check if requested resource is CGI script */ + if ((suffix = strrchr(session->request.path, '.')) != 0) + { + if (0 == lwip_stricmp(suffix, ".cgi" )) + { + *suffix = '\0'; + httpsrv_process_cgi(server, session, session->request.path + 1); /* +1 because of slash */ + *suffix = '.'; + retval = HTTPSRV_SES_END_REQ; + goto EXIT; + } + } + + /* If request is POST on something else than CGI, report error to client. */ + if (session->request.method == HTTPSRV_REQ_POST) + { + session->response.status_code = HTTPSRV_CODE_METHOD_NOT_ALLOWED; + goto EXIT; + } + +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + /* Check if resource is plugin */ + session->plugin = httpsrv_get_ws_plugin(server->params.ws_tbl, session->request.path); + if (session->plugin != NULL) + { + retval = HTTPSRV_SES_RESP; + session->response.status_code = HTTPSRV_CODE_UPGRADE; + goto EXIT; + } +#endif + + /* If client requested root, set requested path to index page */ + if (session->request.path[0] == '/' && session->request.path[1] == '\0') + { + uint32_t offset; + uint32_t length; + const char *index = server->params.index_page; + uint32_t max_length = server->params.max_uri; + + length = strlen(index); + if (length > max_length) + { + length = max_length; + } + + offset = ((index[0] == '\\') || (index[0] == '/')) ? 1 : 0; + memcpy(session->request.path + 1, index + offset, length); + } + + /* Get full file path */ + full_path = httpsrv_path_create(root_dir, session->request.path); + if (full_path == NULL) + { + session->response.status_code = HTTPSRV_CODE_INTERNAL_ERROR; + goto EXIT; + } + + session->response.file = HTTPSRV_FS_open(full_path); + session->response.length = 0; + if (!session->response.file) + { + session->response.status_code = HTTPSRV_CODE_NOT_FOUND; + } + httpsrv_mem_free(full_path); + +EXIT: + return (retval); +} + +/* +** Function for HTTP sending response, used only if request is not for CGI/SSI +** +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer. +** HTTPSRV_STRUCT *server - pointer to server structure (needed for session parameters). +** +** OUT: +** none +** +** Return Value: +** none +*/ + +static HTTPSRV_SES_STATE httpsrv_response(HTTPSRV_STRUCT *server, HTTPSRV_SESSION_STRUCT *session) +{ + HTTPSRV_SES_STATE retval; + + retval = HTTPSRV_SES_END_REQ; + + switch (session->response.status_code) + { + case HTTPSRV_CODE_UPGRADE: +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + if (session->request.upgrade_to == HTTPSRV_WS_PROTOCOL) + { + ws_handshake(session->ws_handshake); + httpsrv_sendhdr(session, 0, 0); + } + session->process_func = httpsrv_plugin_run; +#endif + break; + case HTTPSRV_CODE_OK: + if (session->request.method == HTTPSRV_REQ_HEAD) + { + httpsrv_sendhdr(session, HTTPSRV_FS_size(session->response.file), 0); + retval = HTTPSRV_SES_END_REQ; + } + else if (session->request.method == HTTPSRV_REQ_GET) + { + retval = httpsrv_sendfile(server, session); + } + break; + case HTTPSRV_CODE_UNAUTHORIZED: + httpsrv_send_err_page(session, "Unauthorized", "Unauthorized!"); + break; + case HTTPSRV_CODE_FORBIDDEN: + httpsrv_send_err_page(session, "Forbidden", "Forbidden!"); + break; + case HTTPSRV_CODE_URI_TOO_LONG: + session->flags &= ~HTTPSRV_FLAG_IS_KEEP_ALIVE; + httpsrv_send_err_page(session, "Uri too long", "Requested URI too long!"); + break; + case HTTPSRV_CODE_NOT_FOUND: + httpsrv_send_err_page(session, "Not Found", "Requested URL not found!"); + break; + case HTTPSRV_CODE_METHOD_NOT_ALLOWED: + httpsrv_send_err_page(session, "Method Not Allowed", "POST on static content is not allowed!"); + break; + default: + session->flags &= ~HTTPSRV_FLAG_IS_KEEP_ALIVE; + httpsrv_sendhdr(session, 0, 0); + break; + } + return (retval); +} + +/* + * Set new session state. + */ +static inline void httpsrv_ses_set_state(HTTPSRV_SESSION_STRUCT *session, HTTPSRV_SES_STATE new_state) +{ + session->state = new_state; + if ((session->request.method != HTTPSRV_REQ_POST) || + ((session->response.status_code != HTTPSRV_CODE_OK) && (session->script_tid == 0))) + { + session->buffer.offset = 0; + } +} + +#if HTTPSRV_CFG_WEBSOCKET_ENABLED +/* +** Run plugin - start plugin handler task send message to invoke plugin +** functions. +** IN: +** HTTPSRV_SESSION_STRUCT* session - session structure pointer +** +** OUT: +** none +** +** Return Value: +** none +*/ + +static void httpsrv_plugin_run(void *server_ptr, void *session_ptr) +{ + HTTPSRV_SESSION_STRUCT *session = (HTTPSRV_SESSION_STRUCT *)session_ptr; + /* Run WebSocket session task. */ + ws_session_run(session); + session->valid = HTTPSRV_INVALID; +} + +#endif diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_tls.c b/middleware/lwip/src/apps/httpsrv/httpsrv_tls.c new file mode 100644 index 0000000..8e722bb --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_tls.c @@ -0,0 +1,275 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016-2018 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* This file contains the HTTPSRV TLS implementation.*/ +#include "httpsrv_tls.h" +#include "httpsrv_port.h" +#include "httpsrv_supp.h" + +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE + +/* Initialize TLS */ +httpsrv_tls_ctx_t httpsrv_tls_init(const HTTPSRV_TLS_PARAM_STRUCT *params) +{ + httpsrv_tls_ctx_t ctx = NULL; + + if(params) + { +#if HTTPSRV_CFG_WOLFSSL_ENABLE + WOLFSSL_METHOD *method; + + /* Initialize wolfSSL library */ + wolfSSL_Init(); + + /* Get encryption method */ + method = wolfTLSv1_2_server_method(); + + /* Create wolfSSL_CTX */ + ctx = wolfSSL_CTX_new(method); + if (ctx && params->certificate_buffer && params->certificate_buffer_size && params->private_key_buffer && params->private_key_buffer_size ) + { + /* Add cert to ctx */ + if (wolfSSL_CTX_use_certificate_buffer(ctx, params->certificate_buffer, params->certificate_buffer_size, SSL_FILETYPE_PEM) != SSL_SUCCESS) + { + goto ERROR; + } + + /* Load server key into ctx */ + if (wolfSSL_CTX_use_PrivateKey_buffer(ctx, params->private_key_buffer, params->private_key_buffer_size, SSL_FILETYPE_PEM) != SSL_SUCCESS) + { + goto ERROR; + } + } +#endif /* HTTPSRV_CFG_WOLFSSL_ENABLE */ + +#if HTTPSRV_CFG_MBEDTLS_ENABLE + + const char *pers = "ssl_server"; + + ctx = httpsrv_mem_alloc_zero(sizeof(*ctx)); + if(ctx) + { + mbedtls_ssl_config_init(&ctx->conf); + #if defined(MBEDTLS_SSL_CACHE_C) + mbedtls_ssl_cache_init( &ctx->cache ); + #endif + mbedtls_x509_crt_init(&ctx->srvcert); + mbedtls_pk_init(&ctx->pkey); + mbedtls_entropy_init(&ctx->entropy); + mbedtls_ctr_drbg_init(&ctx->ctr_drbg); + + #if defined(MBEDTLS_DEBUG_C) + mbedtls_debug_set_threshold(0); /* Set this to >= 2 to see debug info */ + #endif + + if ( params->certificate_buffer && params->certificate_buffer_size && params->private_key_buffer && params->private_key_buffer_size ) + { + if (mbedtls_x509_crt_parse(&ctx->srvcert, params->certificate_buffer, params->certificate_buffer_size) != 0) + { + goto ERROR; + } + + if (mbedtls_pk_parse_key(&ctx->pkey, params->private_key_buffer, params->private_key_buffer_size, NULL, 0) != 0) + { + goto ERROR; + } + + /* Seed the RNG */ + if (mbedtls_ctr_drbg_seed(&ctx->ctr_drbg, mbedtls_entropy_func, &ctx->entropy, (const unsigned char *)pers, strlen(pers)) != 0) + { + goto ERROR; + } + + /* Setup stuff */ + if (mbedtls_ssl_config_defaults(&ctx->conf, MBEDTLS_SSL_IS_SERVER, MBEDTLS_SSL_TRANSPORT_STREAM, MBEDTLS_SSL_PRESET_DEFAULT) != 0) + { + goto ERROR; + } + + mbedtls_ssl_conf_rng(&ctx->conf, mbedtls_ctr_drbg_random, &ctx->ctr_drbg); + #if 0 /* Debug info.*/ + mbedtls_ssl_conf_dbg(&ctx->conf, my_debug, NULL); + #endif + #if defined(MBEDTLS_SSL_CACHE_C) + mbedtls_ssl_conf_session_cache( &ctx->conf, &ctx->cache, mbedtls_ssl_cache_get, mbedtls_ssl_cache_set ); + #endif + mbedtls_ssl_conf_ca_chain(&ctx->conf, ctx->srvcert.next, NULL); + if (mbedtls_ssl_conf_own_cert(&ctx->conf, &ctx->srvcert, &ctx->pkey) != 0) + { + goto ERROR; + } + } + } +#endif /* HTTPSRV_CFG_MBEDTLS_ENABLE */ + + } + return ctx; + +ERROR: + if(ctx) + { + httpsrv_tls_release(ctx); + } + + return NULL; +} + +/* Release TLS */ +void httpsrv_tls_release(httpsrv_tls_ctx_t ctx) +{ + if(ctx) + { +#if HTTPSRV_CFG_WOLFSSL_ENABLE + wolfSSL_CTX_free(ctx); + wolfSSL_Cleanup(); +#endif /* HTTPSRV_CFG_WOLFSSL_ENABLE */ + +#if HTTPSRV_CFG_MBEDTLS_ENABLE + mbedtls_x509_crt_free(&ctx->srvcert); + mbedtls_pk_free(&ctx->pkey); + mbedtls_ssl_config_free(&ctx->conf); + #if defined(MBEDTLS_SSL_CACHE_C) + mbedtls_ssl_cache_free(&ctx->cache); + #endif + mbedtls_ctr_drbg_free(&ctx->ctr_drbg); + mbedtls_entropy_free(&ctx->entropy); + + httpsrv_mem_free(ctx); +#endif + + } +} + +#if HTTPSRV_CFG_MBEDTLS_ENABLE + +static int httpsrv_mbedtls_send(void *ctx, unsigned char const *buf, size_t len) +{ + int result; + + result = lwip_send((int)ctx, buf, len, 0); + + return result; +} + +static int httpsrv_mbedtls_recv(void *ctx, unsigned char *buf, size_t len) +{ + int result; + + result = lwip_recv((int)ctx, buf, len, 0); + + return result; +} + +#endif /* HTTPSRV_CFG_MBEDTLS_ENABLE */ + +/* Create TLS connection using sock, return TLS connection handle. */ +httpsrv_tls_sock_t httpsrv_tls_socket(httpsrv_tls_ctx_t ctx, int sock) +{ + httpsrv_tls_sock_t tls_sock; + +#if HTTPSRV_CFG_WOLFSSL_ENABLE + /* Create wolfSSL object */ + tls_sock = wolfSSL_new(ctx); + if (tls_sock) + { + /* Associate the socket (file descriptor) with the session.*/ + wolfSSL_set_fd(tls_sock, sock); + } +#endif + +#if HTTPSRV_CFG_MBEDTLS_ENABLE + tls_sock = httpsrv_mem_alloc_zero(sizeof(*tls_sock)); + if(tls_sock) + { + mbedtls_ssl_init(tls_sock); + + if (mbedtls_ssl_setup(tls_sock, &ctx->conf) != 0) + { + httpsrv_mem_free(tls_sock); + tls_sock = 0; + } + else + { + int ret; + + /* set IO functions */ + mbedtls_ssl_set_bio(tls_sock, (void *)sock, httpsrv_mbedtls_send, httpsrv_mbedtls_recv, NULL); + + /* perform handshake */ + ret = mbedtls_ssl_handshake(tls_sock); + if (ret < 0) + { + #if 0 + PRINTF(" failed\r\n ! mbedtls_ssl_handshake error %d\r\n\n", ret); + #endif + httpsrv_tls_shutdown(tls_sock); + tls_sock=0; + } + } + } +#endif + return tls_sock; +} + +/* Shutdown SSL connection. */ +void httpsrv_tls_shutdown(httpsrv_tls_sock_t tls_sock) +{ + if(tls_sock) + { + #if HTTPSRV_CFG_WOLFSSL_ENABLE + /* Shuts down an active SSL/TLS connection */ + wolfSSL_shutdown(tls_sock); + /* Free TLS socket.*/ + wolfSSL_free(tls_sock); + #endif + + #if HTTPSRV_CFG_MBEDTLS_ENABLE + /* Shuts down an active SSL/TLS connection */ + mbedtls_ssl_close_notify(tls_sock); + /* Free TLS socket.*/ + mbedtls_ssl_free(tls_sock); + + httpsrv_mem_free(tls_sock); + #endif + } +} + +/* Receive data from TLS layer. */ +int httpsrv_tls_recv(httpsrv_tls_sock_t tls_sock, void *buf, size_t len, int flags) +{ + int result; + +#if HTTPSRV_CFG_WOLFSSL_ENABLE + result = wolfSSL_recv(tls_sock, buf, len, flags); +#endif + +#if HTTPSRV_CFG_MBEDTLS_ENABLE + result = mbedtls_ssl_read(tls_sock, buf, len); +#endif + + return result; +} + +/* Send data through TLS layer. */ +int32_t httpsrv_tls_send(httpsrv_tls_sock_t tls_sock, const void *buf, size_t len, int flags) +{ + int result; + +#if HTTPSRV_CFG_WOLFSSL_ENABLE + result = wolfSSL_send(tls_sock, buf, len, flags); +#endif + +#if HTTPSRV_CFG_MBEDTLS_ENABLE + result = mbedtls_ssl_write(tls_sock, buf, len); +#endif + + return result; +} + +#endif /* HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE */ diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_tls.h b/middleware/lwip/src/apps/httpsrv/httpsrv_tls.h new file mode 100644 index 0000000..db2fd7e --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_tls.h @@ -0,0 +1,68 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016-2018 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* Header for HTTPSRV TLS.*/ + +#ifndef _HTTPSRV_TLS_H_ +#define _HTTPSRV_TLS_H_ + +#include "httpsrv_config.h" + +#if HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE +#include "httpsrv.h" + +#if HTTPSRV_CFG_WOLFSSL_ENABLE +#include "wolfssl/ssl.h" + +typedef WOLFSSL *httpsrv_tls_sock_t; +typedef WOLFSSL_CTX *httpsrv_tls_ctx_t; +#endif + +#if HTTPSRV_CFG_MBEDTLS_ENABLE +#include "mbedtls/entropy.h" +#include "mbedtls/ctr_drbg.h" +#include "mbedtls/certs.h" +#include "mbedtls/x509.h" +#include "mbedtls/ssl.h" +#include "mbedtls/ssl_cache.h" +#include "mbedtls/debug.h" + +typedef mbedtls_ssl_context * httpsrv_tls_sock_t; + +typedef struct { + mbedtls_entropy_context entropy; + mbedtls_ctr_drbg_context ctr_drbg; + mbedtls_ssl_config conf; + mbedtls_x509_crt srvcert; + mbedtls_pk_context pkey; + #if defined(MBEDTLS_SSL_CACHE_C) + mbedtls_ssl_cache_context cache; + #endif + } *httpsrv_tls_ctx_t; + +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +httpsrv_tls_ctx_t httpsrv_tls_init(const HTTPSRV_TLS_PARAM_STRUCT *params); +void httpsrv_tls_release(httpsrv_tls_ctx_t ctx); +httpsrv_tls_sock_t httpsrv_tls_socket(httpsrv_tls_ctx_t ctx, int sock); +void httpsrv_tls_shutdown(httpsrv_tls_sock_t tls_sock); +int httpsrv_tls_recv(httpsrv_tls_sock_t tls_sock, void *buf, size_t len, int flags); +int32_t httpsrv_tls_send(httpsrv_tls_sock_t tls_sock, const void *buf, size_t len, int flags); + +#ifdef __cplusplus +} +#endif + +#endif /* HTTPSRV_CFG_WOLFSSL_ENABLE || HTTPSRV_CFG_MBEDTLS_ENABLE */ + +#endif /* _HTTPSRV_TLS_H_ */ diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_utf8.c b/middleware/lwip/src/apps/httpsrv/httpsrv_utf8.c new file mode 100644 index 0000000..b76c8ba --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_utf8.c @@ -0,0 +1,94 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* +* This file contains various UTF-8 functions. +*/ + +#include +#include +#include +#include "httpsrv_utf8.h" + +static inline bool utf8_check_boundary(uint8_t *position, uint32_t n, uint8_t *max); + +/* + * Check if input sequence is valid UTF-8 sequence. + */ +bool utf8_is_valid(uint8_t *input, uint32_t length, uint8_t **bad, uint32_t *missing) +{ + uint8_t *position; + uint8_t *max; + uint32_t n; + + position = input; + max = input + length; + *missing = 0; + + while (position < max) + { + n = 0; + + if (utf8_check_1(position)) + { + position++; + continue; + } + n++; + if (utf8_check_boundary(position, n, max)) + { + *missing = 4 - n; + goto BOUNDARY; + } + + if (utf8_check_2(position)) + { + position += n + 1; + continue; + } + n++; + if (utf8_check_boundary(position, n, max)) + { + *missing = 4 - n; + goto BOUNDARY; + } + if (utf8_check_3(position)) + { + position += n + 1; + continue; + } + n++; + if (utf8_check_boundary(position, n, max)) + { + *missing = 4 - n; + goto BOUNDARY; + } + if (utf8_check_4(position)) + { + position += n + 1; + continue; + } + + BOUNDARY: + *bad = position; + return (false); + } + + *bad = NULL; + return (true); +} + +/* Check if next step would break array boundary. */ +static inline bool utf8_check_boundary(uint8_t *position, uint32_t n, uint8_t *max) +{ + if ((position + n) >= max) + { + return (true); + } + return (false); +} diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_utf8.h b/middleware/lwip/src/apps/httpsrv/httpsrv_utf8.h new file mode 100644 index 0000000..9b895f5 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_utf8.h @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef __utf8_h__ +#define __utf8_h__ + +#include +#include + +#define UTF8_TAIL_MIN 0x80 +#define UTF8_TAIL_MAX 0xBF + +#ifdef __cplusplus +extern "C" { +#endif + +bool utf8_is_valid(uint8_t *input, uint32_t length, uint8_t **bad, uint32_t *missing); + +static inline bool utf8_check_1(uint8_t *data); +static inline bool utf8_check_2(uint8_t *data); +static inline bool utf8_check_3(uint8_t *data); +static inline bool utf8_check_4(uint8_t *data); + +/* Check 1 byte for validity. */ +static inline bool utf8_check_1(uint8_t *data) +{ + if ((data[0] == 0x09) || (data[0] == 0x0A) || (data[0] == 0x0D) || (data[0] <= 0x7F)) + { + return (true); + } + return (false); +} + +/* Check 2 bytes for validity. */ +static inline bool utf8_check_2(uint8_t *data) +{ + if (((data[0] >= 0xC2) && (data[0] <= 0xDF)) && ((data[1] >= 0x80) && (data[1] <= 0xBF))) + { + return (true); + } + return (false); +} + +/* Check 3 bytes for validity. */ +static inline bool utf8_check_3(uint8_t *data) +{ + if ((/* Excluding overlongs. */ + (data[0] == 0xE0) && ((data[1] >= 0xA0) && (data[1] <= 0xBF)) && ((data[2] >= 0x80) && (data[2] <= 0xBF))) || + (/* Straight 3-byte. */ + (((data[0] >= 0xE1) && (data[0] <= 0xEC)) || (data[0] == 0xEE) || (data[0] == 0xEF)) && + ((data[1] >= 0x80) && (data[1] <= 0xBF)) && ((data[2] >= 0x80) && (data[2] <= 0xBF))) || + (/* Excluding surrogates. */ + (data[0] == 0xED) && ((data[1] >= 0x80) && (data[1] <= 0x9F)) && ((data[2] >= 0x80) && (data[2] <= 0xBF)))) + { + return (true); + } + return (false); +} + +/* Check 4 bytes for validity. */ +static inline bool utf8_check_4(uint8_t *data) +{ + if ((/* Planes 1-3. */ + (data[0] == 0xF0) && ((data[1] >= 0x90) && (data[1] <= 0xBF)) && ((data[2] >= 0x80) && (data[2] <= 0xBF)) && + ((data[3] >= 0x80) && (data[3] <= 0xBF))) || + (/* Planes 4-15. */ + ((data[0] >= 0xF1) && (data[0] <= 0xF3)) && ((data[1] >= 0x80) && (data[1] <= 0xBF)) && + ((data[2] >= 0x80) && (data[2] <= 0xBF)) && ((data[3] >= 0x80) && (data[3] <= 0xBF))) || + (/* Plane 16. */ + (data[0] == 0xF4) && ((data[1] >= 0x80) && (data[1] <= 0x8F)) && ((data[2] >= 0x80) && (data[2] <= 0xBF)) && + ((data[3] >= 0x80) && (data[3] <= 0xBF)))) + { + return (true); + } + return (false); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_ws.c b/middleware/lwip/src/apps/httpsrv/httpsrv_ws.c new file mode 100644 index 0000000..7a67cc3 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_ws.c @@ -0,0 +1,1217 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* This file contains implementation of WebSocket protocol.*/ + +#include "httpsrv_ws_prv.h" + +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + +#include "httpsrv_sha1.h" +#include "httpsrv_base64.h" +#include "httpsrv_utf8.h" +#include "httpsrv_supp.h" + +#define UINT16MAX 65536 + +static uint32_t ws_read_frame_header(uint8_t *data, WS_FRAME_STRUCT *dst, uint32_t length); +static void ws_write_frame(uint8_t *dst, WS_FRAME_STRUCT *src); +static void ws_unmask_data(uint8_t *data, uint32_t mask, uint32_t length, uint8_t mask_offset); +static WS_ERROR_CODE ws_check_frame_header(WS_CONTEXT_STRUCT *context, WS_FRAME_STRUCT *frame); +static uint32_t ws_get_header_size(WS_FRAME_STRUCT *frame); +static inline uint32_t ws_get_frame_size(WS_FRAME_STRUCT *frame); +static int32_t ws_data_frame(WS_CONTEXT_STRUCT *context); +static int32_t ws_process_frame(WS_CONTEXT_STRUCT *context); +static void ws_bad_frame(WS_CONTEXT_STRUCT *context, WS_ERROR_CODE frame_status); +static uint32_t ws_check_close_reason(uint16_t reason); +static uint32_t ws_close_frame(WS_CONTEXT_STRUCT *context); +static int ws_ping_frame(WS_CONTEXT_STRUCT *context); +static uint32_t ws_pong_frame(WS_CONTEXT_STRUCT *context); +static inline void ws_update_mask_offset(WS_CONTEXT_STRUCT *context); +static uint32_t ws_process_api_calls(WS_CONTEXT_STRUCT *context); +static int ws_send_control_frame(WS_CONTEXT_STRUCT *context, uint8_t *data, uint32_t length, uint32_t opcode); +static int ws_send_frame(WS_CONTEXT_STRUCT *context, WS_FRAME_STRUCT *frame); +static uint32_t ws_check_utf8(WS_CONTEXT_STRUCT *context, uint8_t *data, uint32_t length); +static uint32_t ws_validate_data(WS_CONTEXT_STRUCT *context); +static bool ws_check_utf8_finalize(uint8_t *data); +static uint32_t ws_recv(WS_CONTEXT_STRUCT *context); +static uint32_t ws_recv_fail(WS_CONTEXT_STRUCT *context); +static uint32_t ws_init(HTTPSRV_SESSION_STRUCT *session, WS_CONTEXT_STRUCT **context_out); +static void ws_deinit(WS_CONTEXT_STRUCT *context); +static uint32_t ws_process(WS_CONTEXT_STRUCT *context); + +/* + * WebSocket session task. + */ +void ws_session_run(HTTPSRV_SESSION_STRUCT *session) +{ + WS_CONTEXT_STRUCT *context; + + if (ws_init(session, &context) != WS_ERR_OK) + { + /* Exit on error.*/ + if (context != NULL) + { + httpsrv_mem_free(context); + } + } + else + { + while (ws_process(context) != WS_ERR_FAIL) + { + } + + ws_deinit(context); + } +} + +/* + * Upgrade HTTP session to WebSocket session. + */ +void ws_handshake(WS_HANDSHAKE_STRUCT *handshake) +{ + const char *guid = WS_GUID_STRING; + SHA1_CTX sha1_context; + char sha1_sum[SHA1_DIGEST_SIZE]; + + /* Get SHA-1 of key and WebSocket GUID and encode it in base64 */ + SHA1_Init(&sha1_context); + SHA1_Update(&sha1_context, (uint8_t *)handshake->key, WS_KEY_LENGTH); + SHA1_Update(&sha1_context, (uint8_t *)guid, WS_GUID_LENGTH); + SHA1_Final(&sha1_context, (uint8_t *)sha1_sum); + base64_encode_binary(sha1_sum, handshake->accept, SHA1_DIGEST_SIZE); +} + +/* + * Initialize WebSocket protocol. + */ +uint32_t ws_init(HTTPSRV_SESSION_STRUCT *session, WS_CONTEXT_STRUCT **context_out) +{ + const WS_PLUGIN_STRUCT *plugin = session->plugin; + WS_CONTEXT_STRUCT *context; + +/* Set receive timeout to ping period (in seconds) */ +#if LWIP_SO_RCVTIMEO + { + struct timeval timeval_option; + timeval_option.tv_sec = WSCFG_PING_PERIOD; /* seconds */ + timeval_option.tv_usec = 0; /* and microseconds */ + (void)lwip_setsockopt(session->sock, SOL_SOCKET, SO_RCVTIMEO, (const void *)&timeval_option, sizeof(timeval_option)); + } +#endif + + /* Create WebSocket context structure */ + context = httpsrv_mem_alloc_zero(sizeof(WS_CONTEXT_STRUCT)); + if (context == NULL) + { + *context_out = NULL; + return (WS_ERR_FAIL); + } + *context_out = context; + + context->session = session; + + /* Set handle so it is available for callbacks */ + context->u_context.handle = (uint32_t)context; + context->state = WS_STATE_OPEN; + + /* Init UTF-8 buffer. */ + memset((void *)context->utf8.data, UTF8_TAIL_MIN, sizeof(context->utf8.data)); + + /* Setup buffers - re-use HTTP session buffer; split it in half */ + context->tx_buffer.data = (uint8_t *)session->buffer.data; + context->tx_buffer.size = HTTPSRV_SES_BUF_SIZE_PRV / 2; + context->tx_buffer.offset = 0; + + context->hdr_buffer.data = context->tx_buffer.data + context->tx_buffer.size; + context->hdr_buffer.size = WS_MAX_CLIENT_HEADER_LENGTH; + context->hdr_buffer.offset = 0; + + context->rx_buffer.data = context->hdr_buffer.data + context->hdr_buffer.size; + context->rx_buffer.size = HTTPSRV_SES_BUF_SIZE_PRV / 2 - WS_MAX_CLIENT_HEADER_LENGTH; + context->rx_buffer.offset = 0; + + context->ctrl_buffer.data = (uint8_t *)httpsrv_mem_alloc(WS_CONTROL_FRAME_LENGTH_MAX); + if (context->ctrl_buffer.data == NULL) + { + return (WS_ERR_FAIL); + } + context->ctrl_buffer.size = WS_CONTROL_FRAME_LENGTH_MAX; + context->ctrl_buffer.offset = 0; + + context->actual_buffer = &context->hdr_buffer; + + /* Init message queue for API calls*/ + if (sys_mbox_new(&context->api_queue, WS_NUM_MESSAGES) != ERR_OK) + { + httpsrv_mem_free(context->ctrl_buffer.data); + return (WS_ERR_FAIL); + } + + /* Call user connect callback and set session state */ + if(plugin->on_connect) + { + plugin->on_connect(plugin->cookie, context->u_context); + } + return (WS_ERR_OK); +} + +/* + * Process WebSocket session. + */ +static uint32_t ws_process(WS_CONTEXT_STRUCT *context) +{ + WS_FRAME_STRUCT *rec_frame; + WS_BUFFER_STRUCT *buffer; + uint32_t retval; + uint32_t api_status; + + retval = WS_ERR_PASS; + buffer = context->actual_buffer; + rec_frame = &context->frame; + + api_status = ws_process_api_calls(context); + if (api_status == WS_ERR_FAIL) + { + retval = WS_ERR_FAIL; + goto EXIT; + } + else if (api_status == WS_DO_RECV) + { + if (ws_recv(context) != WS_ERR_PASS) + { + retval = WS_ERR_FAIL; + goto EXIT; + } + buffer = context->actual_buffer; + + /* Unmask data and set context pointer to it */ + ws_unmask_data(buffer->data + (buffer->offset - context->rec_data_size), rec_frame->mask_key, + context->rec_data_size, context->mask_offset); + ws_update_mask_offset(context); + if (ws_validate_data(context) != WS_ERR_PASS) + { + ws_bad_frame(context, WS_ERR_NO_UTF8); + retval = WS_ERR_FAIL; + goto EXIT; + } + + /* Process frame */ + if (ws_process_frame(context) == HTTPSRV_ERR) + { + retval = WS_ERR_FAIL; + goto EXIT; + } + } + +EXIT: + return (retval); +} + +/* + * Receive data from socket. + */ +static uint32_t ws_recv(WS_CONTEXT_STRUCT *context) +{ + WS_FRAME_STRUCT *frame; + WS_BUFFER_STRUCT *buffer; + uint32_t received_size; + uint32_t req_length; + + buffer = context->actual_buffer; + context->rec_data_size = 0; + + if (buffer == &context->hdr_buffer) + { + req_length = WS_MIN_CLIENT_HEADER_LENGTH; + context->hdr_buffer.offset = 0; + context->ctrl_buffer.offset = 0; + context->mask_offset = 0; + } + else + { + req_length = WS_MIN(buffer->size, context->remaining_data); + } + + frame = &context->frame; + + while (req_length > 0) + { + uint32_t size; + + size = WS_MIN(buffer->size - buffer->offset, req_length); + if (size == 0) + { + break; + } + + received_size = httpsrv_recv(context->session, (char *)(buffer->data + buffer->offset), size, 0); + if (received_size < 1) /* 0 means connection is closed.*/ + { + return (ws_recv_fail(context)); + } + + buffer->offset += received_size; + + /* If we are reading frame header, receive data until whole header is in buffer. */ + if (buffer == &context->hdr_buffer) + { + req_length = ws_read_frame_header(buffer->data, frame, buffer->offset); + if (req_length == 0) + { + WS_ERROR_CODE frame_status; + + frame_status = ws_check_frame_header(context, frame); + if (frame_status != WS_ERR_OK) + { + /* Report bad frame to client and close connection. */ + ws_bad_frame(context, frame_status); + return (WS_ERR_BAD_FRAME); + } + if (frame->opcode & WS_OPCODE_CONTROL_MASK) + { + buffer = &context->ctrl_buffer; + req_length = frame->length; + } + else + { + buffer = &context->rx_buffer; + req_length = WS_MIN(frame->length, buffer->size); + } + frame->data = buffer->data; + context->remaining_data = frame->length; + } + continue; + } + else + { + req_length -= received_size; + context->rec_data_size += received_size; + context->remaining_data -= received_size; + } + } + context->actual_buffer = buffer; + return (WS_ERR_PASS); +} + +/* + * Receive from socket failed. + */ +static uint32_t ws_recv_fail(WS_CONTEXT_STRUCT *context) +{ + const WS_PLUGIN_STRUCT *plugin; + int optval; + socklen_t optlen = sizeof(optval); + + plugin = context->session->plugin; + + /* If receive timed out and ping was not send, send it */ + if (((lwip_getsockopt(context->session->sock, SOL_SOCKET, SO_ERROR, &optval, &optlen) == 0) && (optval == EWOULDBLOCK)) && + (context->state != WS_STATE_WAIT_PONG)) + { + ws_send_control_frame(context, (uint8_t *)WS_PING_STRING, strlen(WS_PING_STRING), WS_OPCODE_PING); + context->state = WS_STATE_WAIT_PONG; + return (WS_ERR_FAIL); + } + /* + * Socket is gone or response to ping was not received (client + * disconnected, etc.) + */ + else + { + WS_USER_CONTEXT_STRUCT *user_context; + + user_context = &context->u_context; + user_context->error = WS_ERR_SOCKET; + if(plugin->on_error) + { + plugin->on_error(plugin->cookie, *user_context); + } + user_context->error = WS_ERR_OK; + return (WS_ERR_FAIL); + } +} + +/* + * Validate input data. + */ +static uint32_t ws_validate_data(WS_CONTEXT_STRUCT *context) +{ + WS_FRAME_STRUCT *frame; + WS_BUFFER_STRUCT *buffer; + WS_USER_CONTEXT_STRUCT *user_context; + uint32_t result; + + user_context = &context->u_context; + buffer = context->actual_buffer; + frame = &context->frame; + result = WS_ERR_PASS; + + if (((frame->opcode == WS_OPCODE_TEXT) || + ((frame->opcode == WS_OPCODE_CONTINUATION) && (user_context->data.type == WS_DATA_TEXT)))) + { + uint8_t *data; + uint32_t length; + + data = buffer->data + (buffer->offset - context->rec_data_size); + length = WS_MIN(context->rec_data_size, frame->length); + result = ws_check_utf8(context, data, length); + } + return (result); +} + +/* + * Read all message from API message queue. + */ +static uint32_t ws_process_api_calls(WS_CONTEXT_STRUCT *context) +{ + WS_API_CALL_MSG *message; + uint32_t retval; + int32_t active = 0; + fd_set readset; + fd_set exceptset; + struct timeval timeout; + void *mem; + + retval = WS_ERR_PASS; + + while (active == 0) + { + FD_ZERO(&readset); + FD_ZERO(&exceptset); + + FD_SET(context->session->sock, &readset); + FD_SET(context->session->sock, &exceptset); + + timeout.tv_sec = 0; + timeout.tv_usec = 1; + + /* Wait for any activity on socket - received data or exception. */ + active = select(context->session->sock + 1, &readset, NULL, &exceptset, &timeout); + if (active == -1) + { + retval = WS_ERR_FAIL; + break; + } + else if (active >= 1) + { + if (FD_ISSET(context->session->sock, &exceptset)) + { + /* Close connection.*/ + retval = WS_ERR_FAIL; + break; + } + + if (FD_ISSET(context->session->sock, &readset)) + { + /* Socket is read-ready. */ + retval = WS_DO_RECV; + } + } + + /* Check Messages. Indicate call of user API. */ + if (sys_mbox_valid(&context->api_queue)) + { + while (sys_mbox_tryfetch(&context->api_queue, &mem) != SYS_MBOX_EMPTY) + { + if (mem != NULL) + { + message = (WS_API_CALL_MSG *)mem; + + uint16_t close_reason; + + switch (message->command) + { + case WS_COMMAND_SEND: + /* If user transfer is in progress, set opcode to continuation. */ + if (context->u_transfer == 1) + { + message->frame.opcode = WS_OPCODE_CONTINUATION; + } + /* No FIN -> set user transfer in progress flag. */ + if (message->frame.fin == false) + { + context->u_transfer = 1; + } + if (ws_send_frame(context, &message->frame) == -1) + { + retval = WS_ERR_FAIL; + } + break; + case WS_COMMAND_CLOSE: + /* Send close frame, set correct state. */ + retval = WS_ERR_SERVER; + close_reason = PP_NTOHS(WS_CLOSE_GOING_AWAY); + if (ws_send_control_frame(context, (uint8_t *)&close_reason, sizeof(close_reason), + WS_OPCODE_CLOSE) == -1) + { + retval = WS_ERR_FAIL; + } + context->state = WS_STATE_CLOSING; + break; + default: + break; + } + + if ((message->command != WS_COMMAND_SEND) || (retval == WS_ERR_FAIL)) + { + httpsrv_mem_free(message); + goto EXIT; + } + httpsrv_mem_free(message); + } + } + } + } /* while */ +EXIT: + return (retval); +} + +/* + * Update mask offset according to remaining data. + */ +static inline void ws_update_mask_offset(WS_CONTEXT_STRUCT *context) +{ + WS_FRAME_STRUCT *frame; + + frame = &context->frame; + /* + * If we do not store data on the beginning of buffer, correct mask + * offset must be calculated. + */ + if ((context->remaining_data != 0) && (context->remaining_data < frame->length)) + { + context->mask_offset = + ((((frame->length - context->remaining_data) / 4) * 4) + 4) - (frame->length - context->remaining_data); + } +} + +/* + * Process received frame. + */ +static int32_t ws_process_frame(WS_CONTEXT_STRUCT *context) +{ + WS_FRAME_STRUCT *frame; + WS_USER_CONTEXT_STRUCT *user_context; + int retval; + + retval = HTTPSRV_ERR; + user_context = &context->u_context; + frame = &context->frame; + + switch (frame->opcode) + { + case WS_OPCODE_TEXT: + user_context->data.type = WS_DATA_TEXT; + retval = ws_data_frame(context); + break; + case WS_OPCODE_BINARY: + user_context->data.type = WS_DATA_BINARY; + retval = ws_data_frame(context); + break; + case WS_OPCODE_CONTINUATION: + retval = ws_data_frame(context); + break; + case WS_OPCODE_CLOSE: + retval = ws_close_frame(context); + break; + case WS_OPCODE_PING: + retval = ws_ping_frame(context); + break; + case WS_OPCODE_PONG: + retval = ws_pong_frame(context); + break; + default: + ws_bad_frame(context, WS_ERR_BAD_OPCODE); + break; + } + if (retval != HTTPSRV_ERR) + { + retval = HTTPSRV_OK; + } + return (retval); +} + +/* + * Validate UTF-8 sequence. + */ +static uint32_t ws_check_utf8(WS_CONTEXT_STRUCT *context, uint8_t *data, uint32_t length) +{ + uint8_t *bad; + uint32_t missing_now; + uint32_t missing_prev; + + missing_now = 0; + missing_prev = context->utf8.missing; + + if (length == 0) + { + return (WS_ERR_PASS); + } + + /* + * If validation in previous step required more data to complete. + */ + if (missing_prev != 0) + { + uint32_t size; + + size = WS_MIN(missing_prev, length); + memcpy(context->utf8.data + context->utf8.index, data, size); + context->utf8.index += size; + + if (!utf8_is_valid(context->utf8.data, context->utf8.index, &bad, &missing_now)) + { + /* + * If validation failed for second time, there are no missing bytes + * required for validation and we have last frame of message, + * validation failed. + */ + if ((missing_now == 0) || ((context->remaining_data == 0) && (context->frame.fin == 1)) || + !ws_check_utf8_finalize(context->utf8.data)) + { + return (WS_ERR_FAIL); + } + context->utf8.missing = missing_now; + return (WS_ERR_PASS); + } + /* + * If validation is successful reset stored UTF-8 context and continue + * with next step. + */ + data += size; + length -= size; + memset((void *)context->utf8.data, UTF8_TAIL_MIN, sizeof(context->utf8.data)); + context->utf8.missing = 0; + context->utf8.index = 0; + } + + if (!utf8_is_valid(data, length, &bad, &missing_now)) + { + uint32_t size; + + /* Validation failed and there are no missing bytes. */ + if ((missing_now == 0) || (context->frame.fin == 1)) + { + return (WS_ERR_FAIL); + } + size = WS_MIN(sizeof(context->utf8.data) - missing_now, length); + memcpy(context->utf8.data, bad, size); + context->utf8.missing = missing_now; + context->utf8.index = size; + } + return (WS_ERR_PASS); +} + +/* + * Finalize UTF-8 check. + */ +static bool ws_check_utf8_finalize(uint8_t *data) +{ + uint8_t c; + + c = *data; + + /* Find first zero bit and call check function. */ + if ((c | 0x7F) != 0xFF) + { + return (utf8_check_1(data)); + } + else if ((c | 0xDF) != 0xFF) + { + return (utf8_check_2(data)); + } + else if ((c | 0xEF) != 0xFF) + { + return (utf8_check_3(data)); + } + else if ((c | 0xF7) != 0xFF) + { + return (utf8_check_4(data)); + } + else + { + return (false); + } +} + +/* + * Check validity of close reason. + */ +static uint32_t ws_check_close_reason(uint16_t reason) +{ + uint32_t retval = WS_ERR_FAIL; + + reason = ntohs(reason); + + /* Check if close reason lies within valid range */ + if ((reason >= WS_CLOSE_RESERVED_MIN) && (reason <= WS_CLOSE_PRIVATE_MAX)) + { + if (((reason <= WS_CLOSE_SERVER_ERR) && (reason != WS_CLOSE_RESERVED1) && (reason != WS_CLOSE_RESERVED2) && + (reason != WS_CLOSE_RESERVED3)) || + (reason >= WS_CLOSE_APP_MIN)) + { + retval = WS_ERR_PASS; + } + } + return (retval); +} + +/* + * Process close frame. + */ +static uint32_t ws_close_frame(WS_CONTEXT_STRUCT *context) +{ + WS_FRAME_STRUCT *frame; + uint16_t close_reason; + uint32_t retval; + + retval = HTTPSRV_OK; + frame = &context->frame; + /* We initiated close and we are waiting for close from client */ + if (context->state == WS_STATE_CLOSING) + { + context->state = WS_STATE_CLOSED; + retval = (uint32_t)WS_DO_DEINIT; + } + /* Client initiated close, so we reply with close frame + proper code */ + else if (context->remaining_data == 0) + { + if (frame->length == 0) + { + close_reason = ntohs(WS_CLOSE_OK); + } + else if (frame->length >= 2) + { + close_reason = *((uint16_t *)frame->data); + + /* Check close reason. */ + if (ws_check_close_reason(close_reason) != WS_ERR_PASS) + { + close_reason = ntohs(WS_CLOSE_PROT_ERROR); + } + + /* If there is some message, verify that it is UTF-8 string. */ + if ((frame->length > 2) && (ws_check_utf8(context, frame->data + sizeof(uint16_t), + frame->length - sizeof(uint16_t)) != WS_ERR_PASS)) + { + close_reason = ntohs(WS_CLOSE_BAD_TYPE); + } + } + else + { + close_reason = ntohs(WS_CLOSE_PROT_ERROR); + } + ws_send_control_frame(context, (uint8_t *)&close_reason, sizeof(close_reason), WS_OPCODE_CLOSE); + context->state = WS_STATE_CLOSED; + retval = (uint32_t)WS_DO_DEINIT; + } + return (retval); +} + +/* + * Process ping frame. + */ +static int ws_ping_frame(WS_CONTEXT_STRUCT *context) +{ + WS_FRAME_STRUCT *frame; + int retval; + + frame = &context->frame; + + retval = ws_send_control_frame(context, frame->data, frame->length, WS_OPCODE_PONG); + context->actual_buffer = &context->hdr_buffer; + return (retval); +} + +/* + * Process pong frame. + */ +static uint32_t ws_pong_frame(WS_CONTEXT_STRUCT *context) +{ + uint32_t retval; + + retval = HTTPSRV_OK; + + /* If pong is solicited, reset state to open */ + if (context->state == WS_STATE_WAIT_PONG) + { + context->state = WS_STATE_OPEN; + } + context->actual_buffer = &context->hdr_buffer; + return (retval); +} + +/* + * Call user callback if required. + */ +static int32_t ws_data_frame(WS_CONTEXT_STRUCT *context) +{ + WS_BUFFER_STRUCT *buffer; + WS_USER_CONTEXT_STRUCT *user_context; + WS_FRAME_STRUCT *frame; + const WS_PLUGIN_STRUCT *plugin; + int32_t retval = HTTPSRV_OK; + + plugin = context->session->plugin; + user_context = &context->u_context; + buffer = context->actual_buffer; + frame = &context->frame; + + /* Store length of received data in user context. */ + user_context->data.length += WS_MIN(frame->length, context->rec_data_size); + user_context->data.data_ptr = buffer->data; + + /* + * If there is no space for frame header or all data are read, + * call on_message callback with received data. + */ + if ((buffer->size - buffer->offset) == 0) + { + if(plugin->on_message) + { + retval = plugin->on_message(plugin->cookie, *user_context); + } + else + { + retval = 0; + } + user_context->fin_flag = 0; + user_context->data.length = 0; + user_context->data.data_ptr = NULL; + context->remaining_data -= user_context->data.length; + context->actual_buffer->offset = 0; + } + else if (context->remaining_data == 0) + { + if (frame->fin == true) + { + user_context->fin_flag = 1; + context->rx_state = WS_RX_START; + if(plugin->on_message) + { + retval = plugin->on_message(plugin->cookie, *user_context); + } + else + { + retval = 0; + } + user_context->fin_flag = 0; + user_context->data.length = 0; + user_context->data.data_ptr = NULL; + context->actual_buffer->offset = 0; + } + context->actual_buffer = &context->hdr_buffer; + } + /* + * If frame is first in transmission and there are going to be continuation + * frames, set correct receive state; so we can detect wrong frame sequence. + */ + if ((frame->fin == false) && (frame->opcode != WS_OPCODE_CONTINUATION) && (context->rx_state == WS_RX_START)) + { + context->rx_state = WS_RX_CONT; + } + return retval; +} + +/* + * Release WebSocket. + */ +static void ws_deinit(WS_CONTEXT_STRUCT *context) +{ + const WS_PLUGIN_STRUCT *plugin; + + plugin = context->session->plugin; + + /* Call user disconnect callback */ + if(plugin->on_disconnect) + { + plugin->on_disconnect(plugin->cookie, context->u_context); + } + + if (context->api_queue != NULL) + { + void *message; + /* Delete and drain the api_queue. */ + while (sys_mbox_tryfetch(&context->api_queue, &message) != SYS_MBOX_EMPTY) + { + if(message) + { + httpsrv_mem_free(message); + } + } + sys_mbox_free(&context->api_queue); + } + + if (context->ctrl_buffer.data != NULL) + { + httpsrv_mem_free(context->ctrl_buffer.data); + } + + httpsrv_mem_free(context); + + /*Socket is closed later.*/ +} + +/* + * Unmask data from client. + */ +static void ws_unmask_data(uint8_t *data, uint32_t mask, uint32_t length, uint8_t mask_offset) +{ + uint32_t i; + uint32_t words; + uint32_t mask_key = mask; + + /* If there is offset, shift mask to correct position first. */ + if (mask_offset > 0) + { + mask_offset = mask_offset * 8; + mask_key <<= mask_offset; + mask_key |= mask >> (sizeof(mask) * 8 - mask_offset); + } + + words = length / 4; + + /* Unmask whole 32-bit long words first. */ + for (i = 0; i < words; i++) + { + *(((uint32_t *)data) + i) ^= mask_key; + } + + /* Unmask rest of data (less then four bytes). */ + for (i = words * 4; i < length; i++) + { + data[i] ^= *((uint8_t *)&mask_key + i % 4); + } +} + +/* + * Fill WebSocket frame structure from received data + */ +static uint32_t ws_read_frame_header(uint8_t *data, WS_FRAME_STRUCT *dst, uint32_t length) +{ + uint8_t *src = data; + uint32_t req_length; + + /* Minimum is always required. */ + req_length = WS_MIN_CLIENT_HEADER_LENGTH; + if ((src == NULL) || (dst == NULL)) + { + return (req_length); + } + + if (length < req_length) + { + return (req_length - length); + } + + dst->fin = WS_GET_FIN(src); + dst->reserved = WS_GET_RSV(src); + dst->opcode = WS_GET_OPCODE(src); + src++; + dst->masked = WS_GET_MASK_FLAG(src); + dst->length = WS_GET_LENGTH(src); + src++; + if (dst->length == WS_LENGTH_EXT16) + { + /* Length of 126 indicates that length is stored in next two bytes. */ + req_length += sizeof(uint16_t); + if (length < req_length) + { + return (req_length - length); + } + dst->length = ntohs(*((uint16_t *)src)); + src += sizeof(uint16_t); + } + else if (dst->length == WS_LENGTH_EXT64) + { + /* Length of 127 indicates that length is stored in next eight bytes. */ + req_length += sizeof(uint64_t); + if (length < req_length) + { + return (req_length - length); + } + /* Only frame sizes up to 32-bit long are supported by this implementation. */ + dst->length = ntohl(*((uint32_t *)src + 1)); + src += sizeof(uint64_t); + } + if (dst->masked == true) + { + dst->mask_key = *((uint32_t *)src); + src += sizeof(uint32_t); + } + dst->data = data; + return (0); +} + +/* + * Create frame header in buffer from frame structure. + */ +static void ws_write_frame(uint8_t *dst, WS_FRAME_STRUCT *src) +{ + memmove(dst + ws_get_header_size(src), src->data, src->length); + *dst = 0; + if (src->fin) + { + *dst |= WS_FIN_MASK; + } + *dst |= *((uint8_t *)(&src->opcode)) & WS_OPCODE_MASK; + dst++; + *dst = 0; + + if (src->length <= WS_LENGTH_NON_EXT) + { + *dst++ = *((uint8_t *)(&src->length)) & WS_LENGTH_MASK; + } + else if ((src->length > WS_LENGTH_NON_EXT) & (src->length < UINT16MAX)) + { + *dst++ = WS_LENGTH_EXT16; + *((uint16_t *)dst) = htons(src->length & 0xFFFF); + dst += sizeof(uint16_t); + } + else if (src->length >= UINT16MAX) + { + *dst++ = WS_LENGTH_EXT64; + *((uint64_t *)dst) = htonl(src->length); + dst += sizeof(uint64_t); + } + + if (src->masked) + { + *((uint32_t *)dst) = src->mask_key; + dst += sizeof(uint32_t); + } +} + +/* + * Check frame validity + */ +static WS_ERROR_CODE ws_check_frame_header(WS_CONTEXT_STRUCT *context, WS_FRAME_STRUCT *frame) +{ + WS_ERROR_CODE retval = WS_ERR_OK; + + /* Data MUST be masked. */ + if (frame->masked == false) + { + retval = WS_ERR_BAD_FRAME; + } + + /* There MUST be non-zero mask key. */ + else if (frame->mask_key == 0) + { + retval = WS_ERR_BAD_FRAME; + } + + /* Reserved part of frame header MUST be zero. */ + if (frame->reserved > 0) + { + retval = WS_ERR_BAD_FRAME; + } + + /* Opcode MUST be valid. */ + if (((frame->opcode > WS_OPCODE_BINARY) && (frame->opcode < WS_OPCODE_CLOSE)) || (frame->opcode > WS_OPCODE_PONG)) + { + retval = WS_ERR_BAD_FRAME; + } + + if ((frame->opcode & WS_OPCODE_CONTROL_MASK) && /* If frame is control frame and */ + ((frame->length > WS_CONTROL_FRAME_LENGTH_MAX) || /* its length is greater than 125 bytes or */ + (frame->fin == false) /* it is fragmented. */ + )) + { + retval = WS_ERR_BAD_FRAME; /* Frame is invalid. */ + } + + if (((context->rx_state == WS_RX_CONT) && /* If we expect continuation and */ + !(frame->opcode & WS_OPCODE_CONTROL_MASK) && /* frame is not control frame and */ + (frame->opcode != WS_OPCODE_CONTINUATION) /* frame is not continuation. */ + ) || /* Or if */ + ((context->rx_state == WS_RX_START) && /* We expect first frame in sequence and */ + (frame->opcode == WS_OPCODE_CONTINUATION) /* frame is continuation. */ + )) + { + retval = WS_ERR_BAD_SEQ; /* Bad frame sequence is received. */ + } + + return (retval); +} + +/* + * Resolve bad frame, and report it to client. + */ +static void ws_bad_frame(WS_CONTEXT_STRUCT *context, WS_ERROR_CODE frame_status) +{ + uint16_t close_reason = 0; + WS_USER_CONTEXT_STRUCT *user_context; + const WS_PLUGIN_STRUCT *plugin; + + plugin = context->session->plugin; + user_context = &context->u_context; + + /* Send close with protocol error. */ + switch (frame_status) + { + case WS_ERR_BAD_OPCODE: + close_reason = htons(WS_CLOSE_POLICY); + break; + case WS_ERR_NO_UTF8: + close_reason = htons(WS_CLOSE_BAD_TYPE); + break; + case WS_ERR_BAD_FRAME: + case WS_ERR_BAD_SEQ: + default: + close_reason = htons(WS_CLOSE_PROT_ERROR); + break; + } + ws_send_control_frame(context, (uint8_t *)&close_reason, sizeof(close_reason), WS_OPCODE_CLOSE); + context->state = WS_STATE_CLOSING; + + /* Call user callback */ + user_context->error = WS_ERR_BAD_FRAME; + user_context->data.type = WS_DATA_INVALID; + user_context->data.data_ptr = NULL; + user_context->data.length = 0; + if(plugin->on_error) + { + plugin->on_error(plugin->cookie, *user_context); + } + user_context->error = WS_ERR_OK; +} + +/* + * Get total frame size (header + data) + */ +static inline uint32_t ws_get_frame_size(WS_FRAME_STRUCT *frame) +{ + return (ws_get_header_size(frame) + frame->length); +} + +/* + * Get frame header size in bytes. + */ +static uint32_t ws_get_header_size(WS_FRAME_STRUCT *frame) +{ + uint32_t retval = sizeof(uint16_t); + + if ((frame->length > 0) && (frame->length >= WS_LENGTH_EXT16)) + { + if (frame->length < UINT16MAX) + { + retval += sizeof(uint16_t); + } + else + { + retval += sizeof(uint64_t); + } + } + + if (frame->masked == true) + { + retval += sizeof(uint32_t); + } + + return (retval); +} + +/* + * Send data to client. Use framing mechanism if required. + */ +static int ws_send_frame(WS_CONTEXT_STRUCT *context, WS_FRAME_STRUCT *frame) +{ + WS_BUFFER_STRUCT *buffer; + uint32_t data_length; + int retval; + bool user_fin; + const WS_PLUGIN_STRUCT *plugin; + + plugin = context->session->plugin; + buffer = &context->tx_buffer; + data_length = frame->length; + user_fin = frame->fin; + + do + { + /* First case: We have all data from user and it fits in buffer. */ + if (((data_length + ws_get_header_size(frame)) < buffer->size) && user_fin) + { + frame->fin = true; + frame->length = data_length; + } + /* Second case: We have data from user, but it does not fit in buffer. */ + else if (((data_length + ws_get_header_size(frame)) > buffer->size) && user_fin) + { + frame->fin = false; + frame->length = buffer->size; + } + /* + * Third and fourth case: We do not have all data from user (no fin) + * and it does fit in buffer OR we do have all data from user but + * no fin flag. + */ + else + { + frame->fin = false; + frame->length = data_length; + } + if (frame->fin == true) + { + context->u_transfer = 0; + } + /* Write frame to buffer and send it. */ + ws_write_frame(buffer->data, frame); + retval = httpsrv_send(context->session, (char *)buffer->data, ws_get_frame_size(frame), 0); + if (retval == -1) + { + break; + } + retval -= ws_get_header_size(frame); + /* + * Set opcode to continuation for next frame, + * move data pointer, decrease remaining data length. + */ + frame->opcode = WS_OPCODE_CONTINUATION; + frame->data += retval; + data_length -= retval; + } while (data_length > 0); + + /* If send failed call error callback. */ + if (retval == -1) + { + WS_USER_CONTEXT_STRUCT *user_context; + + user_context = &context->u_context; + user_context->error = WS_ERR_SOCKET; + user_context->data.data_ptr = frame->data; + user_context->data.type = WS_DATA_INVALID; + user_context->data.length = frame->length; + if(plugin->on_error) + { + plugin->on_error(plugin->cookie, *user_context); + } + user_context->error = WS_ERR_OK; + } + + return (retval); +} + +/* + * Send control frame. + */ +static int ws_send_control_frame(WS_CONTEXT_STRUCT *context, uint8_t *data, uint32_t length, uint32_t opcode) +{ + WS_FRAME_STRUCT frame = {0}; + + frame.data = data; + frame.length = length; + frame.opcode = opcode; + frame.fin = true; + + return (ws_send_frame(context, &frame)); +} + +#endif /* HTTPSRV_CFG_WEBSOCKET_ENABLED */ diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_ws.h b/middleware/lwip/src/apps/httpsrv/httpsrv_ws.h new file mode 100644 index 0000000..27127cd --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_ws.h @@ -0,0 +1,108 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* * This file contains public definitions for websocket protocol */ +#ifndef __httpsrv_ws_h__ +#define __httpsrv_ws_h__ + +#include "httpsrv.h" + +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + +/* + * WebSocket data type + */ +typedef enum ws_data_type +{ + WS_DATA_INVALID, + WS_DATA_TEXT, + WS_DATA_BINARY +} WS_DATA_TYPE; + +/* + * WebSocket errors + */ +typedef enum ws_error_code +{ + WS_ERR_OK, + WS_ERR_SOCKET, + WS_ERR_BAD_FRAME, + WS_ERR_BAD_OPCODE, + WS_ERR_BAD_SEQ, + WS_ERR_NO_UTF8, + WS_ERR_SERVER +} WS_ERROR_CODE; + +/* + * WebSocket data structure + */ +typedef struct ws_data_struct +{ + /* Pointer to user data. */ + uint8_t *data_ptr; + /* Length of user data. */ + uint32_t length; + /* Type of data. */ + WS_DATA_TYPE type; +} WS_DATA_STRUCT; + +/* + * Structure passed as parameter to user callbacks + */ +typedef struct ws_user_context_struct +{ + /* WebSocket handle. */ + uint32_t handle; + /* Error code if error occurs. */ + WS_ERROR_CODE error; + /* Data structure. */ + WS_DATA_STRUCT data; + /* Flag signalizing end of message. */ + uint32_t fin_flag; +} WS_USER_CONTEXT_STRUCT; + +/* + * WebSocket callback function prototype. + */ +typedef uint32_t (*WS_CALLBACK_FN)(void *param, WS_USER_CONTEXT_STRUCT context); + +/* + * Structure defining WebSocket plugin. + * + * Usually one resource on server is mapped to one plugin. + */ +typedef struct ws_plugin_struct +{ + /* Path of resource causing plugin invocation. */ + char *resource; + /* on_connect - when client connects to server. */ + WS_CALLBACK_FN on_connect; + /* on_message - when message is received from client. */ + WS_CALLBACK_FN on_message; + /* on_error - when error occurs. */ + WS_CALLBACK_FN on_error; + /* on_disconnect - when client disconnects from server.*/ + WS_CALLBACK_FN on_disconnect; + /* callback parameter(s) */ + void *cookie; +} WS_PLUGIN_STRUCT; + +#ifdef __cplusplus +extern "C" { +#endif + +int32_t WS_send(WS_USER_CONTEXT_STRUCT *context); +int32_t WS_close(uint32_t handle); + +#ifdef __cplusplus +extern "C" { +#endif + +#endif /* HTTPSRV_CFG_WEBSOCKET_ENABLED */ + +#endif diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_ws_api.c b/middleware/lwip/src/apps/httpsrv/httpsrv_ws_api.c new file mode 100644 index 0000000..7675610 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_ws_api.c @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* This file contains API functions for WebSocket protocol.*/ + +#include "httpsrv.h" +#include "httpsrv_ws_prv.h" +#include "httpsrv_port.h" +#include "lwip/sys.h" + + +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + +/* + * Send data through WebSocket. + */ +int32_t WS_send(WS_USER_CONTEXT_STRUCT* context) +{ + WS_CONTEXT_STRUCT *ws_context; + WS_FRAME_STRUCT *frame; + WS_DATA_STRUCT *data; + WS_API_CALL_MSG *message; + + ws_context = (WS_CONTEXT_STRUCT*) context->handle; + data = &(context->data); + + /* Check input validity. */ + if ((data->type == WS_DATA_INVALID) || + (data->data_ptr == NULL) || + (ws_context == NULL)) + { + return(HTTPSRV_ERR); + } + + message = (WS_API_CALL_MSG *)httpsrv_mem_alloc(sizeof(WS_API_CALL_MSG)); + if (message == 0) + { + return HTTPSRV_ERR; + } + + memset(message, 0, sizeof(WS_API_CALL_MSG)); + frame = &message->frame; + /* Fill frame structure and send it */ + frame->opcode = data->type; + frame->length = data->length; + frame->data = data->data_ptr; + frame->fin = (bool) context->fin_flag; + + message->command = WS_COMMAND_SEND; + + sys_mbox_post(&ws_context->api_queue, message); + + return(HTTPSRV_OK); +} + +/* + * Close WebSocket. + */ +int32_t WS_close(uint32_t handle) +{ + WS_CONTEXT_STRUCT *ws_context; + WS_API_CALL_MSG *message; + int32_t retval; + + ws_context = (WS_CONTEXT_STRUCT*) handle; + + retval = HTTPSRV_ERR; + + if (ws_context != NULL) + { + + message = (WS_API_CALL_MSG *)httpsrv_mem_alloc(sizeof(WS_API_CALL_MSG)); + if (message == 0) + { + return HTTPSRV_ERR; + } + + message->command = WS_COMMAND_CLOSE; + + sys_mbox_post(&ws_context->api_queue, message); + + retval = HTTPSRV_OK; + } + return(retval); +} + +#endif /* HTTPSRV_CFG_WEBSOCKET_ENABLED */ diff --git a/middleware/lwip/src/apps/httpsrv/httpsrv_ws_prv.h b/middleware/lwip/src/apps/httpsrv/httpsrv_ws_prv.h new file mode 100644 index 0000000..97a6a99 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/httpsrv_ws_prv.h @@ -0,0 +1,269 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ +/* This file contains private definitions for websocket protocol */ + +#ifndef __httpsrv_ws_prv_h__ +#define __httpsrv_ws_prv_h__ + +#include "httpsrv.h" + +#if HTTPSRV_CFG_WEBSOCKET_ENABLED + +#include +#include +#include "httpsrv_ws.h" + +/* GUID as defined in RFC6455. */ +#define WS_GUID_STRING "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" +#define WS_GUID_LENGTH (36) +/* WebSocket protocol version. */ +#define WS_PROTOCOL_VERSION (13) +/* 16 bytes base64 encoded. */ +#define WS_KEY_LENGTH (24) +/* Length base64 encoded SHA-1 of GUID concatenated with client key. */ +#define WS_ACCEPT_LENGTH (28) + +#define WS_CHAT_PROTOCOL_MASK 0x00000001 +#define WS_SUPERCHAT_PROTOCOL_MASK 0x00000002 + +#define WS_AVAIL_PROTOCOL_STRING "chat" + +#define WS_OPCODE_CLOSE (0x8) +#define WS_OPCODE_PING (0x9) +#define WS_OPCODE_PONG (0xA) +#define WS_OPCODE_TEXT (0x1) +#define WS_OPCODE_BINARY (0x2) +#define WS_OPCODE_CONTINUATION (0x0) +#define WS_OPCODE_CONTROL_MASK (0x8) + +/* Minimal header size for any frame (bytes). */ +#define WS_MIN_HEADER_LENGTH (2) +/* Minimal header size for frame send by client (header+mask) in bytes. */ +#define WS_MIN_CLIENT_HEADER_LENGTH (WS_MIN_HEADER_LENGTH + sizeof(uint32_t)) +#define WS_SERVER_HEADER_LENGTH (4) +/* Maximal header size. */ +#define WS_MAX_CLIENT_HEADER_LENGTH (WS_MIN_CLIENT_HEADER_LENGTH + sizeof(uint64_t)) +#define WS_LENGTH_NON_EXT (125) +#define WS_LENGTH_EXT16 (126) +#define WS_LENGTH_EXT64 (127) +#define WS_CONTROL_FRAME_LENGTH_MAX (WS_LENGTH_NON_EXT) + +#define WS_CLOSE_OK (1000) +#define WS_CLOSE_GOING_AWAY (1001) +#define WS_CLOSE_PROT_ERROR (1002) +#define WS_CLOSE_BAD_DATA (1003) +#define WS_CLOSE_RESERVED1 (1004) +#define WS_CLOSE_RESERVED2 (1005) +#define WS_CLOSE_RESERVED3 (1006) +#define WS_CLOSE_BAD_TYPE (1007) +#define WS_CLOSE_POLICY (1008) +#define WS_CLOSE_TOO_BIG (1009) +#define WS_CLOSE_EXTENSION (1010) +#define WS_CLOSE_SERVER_ERR (1011) +#define WS_CLOSE_RESERVED4 (1015) + +#define WS_CLOSE_NOT_USED_MIN (0) +#define WS_CLOSE_NOT_USED_MAX (999) +#define WS_CLOSE_RESERVED_MIN WS_CLOSE_OK +#define WS_CLOSE_RESERVED_MAX (2999) +#define WS_CLOSE_APP_MIN (3000) +#define WS_CLOSE_APP_MAX (3999) +#define WS_CLOSE_PRIVATE_MIN (4000) +#define WS_CLOSE_PRIVATE_MAX (4999) + +#define WS_FIN_MASK (0x80) +#define WS_RSV_MASK (0x70) +#define WS_OPCODE_MASK (0x0F) +#define WS_MASK_FLAG_MASK (0x80) +#define WS_LENGTH_MASK (0x7F) + +#define WS_GET_FIN(x) ((*x & WS_FIN_MASK) >> 7) +#define WS_GET_RSV(x) ((*x & WS_RSV_MASK) >> 4) +#define WS_GET_OPCODE(x) (*x & WS_OPCODE_MASK) +#define WS_GET_MASK_FLAG(x) ((*x & WS_MASK_FLAG_MASK) >> 7) +#define WS_GET_LENGTH(x) (*x & WS_LENGTH_MASK) + +#define WS_PING_STRING "HTTPSRV-PING-MESSAGE" +#define WS_MIN(a, b) (((a) < (b)) ? (a) : (b)) +#define WS_NUM_MESSAGES (5) +#define WS_DO_DEINIT (HTTPSRV_ERR) + +#define WS_ERR_PASS (1) +#define WS_ERR_FAIL (0) +#define WS_DO_RECV (2) + +#define WS_SESSION_TASK_NAME "WebSocket Session" + +#define WS_PLUGIN_WAIT_ACTIVITY (250) + +/* Websocket ping period. (sec)*/ +#define WSCFG_PING_PERIOD (30) + +/* + * WebSocket handshake structure. + * + */ +typedef struct ws_handshake_struct +{ + /* Requested protocol version. */ + uint32_t version; + /* List of requested protocols. */ + uint32_t protocols; + /* Request handshake key. */ + char key[WS_KEY_LENGTH + 1]; + /* Response to client key. */ + char accept[WS_ACCEPT_LENGTH + 1]; +} WS_HANDSHAKE_STRUCT; + +/* + * Type of command called by user. + */ +typedef enum ws_api_command +{ + WS_COMMAND_RECV, + WS_COMMAND_SEND, + WS_COMMAND_CLOSE +} WS_API_COMMAND; + +/* + * WebSocket session state + */ +typedef enum ws_ses_state +{ + WS_STATE_OPENING, + WS_STATE_OPEN, + WS_STATE_WAIT_PONG, + WS_STATE_CLOSING, + WS_STATE_CLOSED +} WS_SES_STATE; + +/* + * Receive state + */ +typedef enum ws_rx_state +{ + WS_RX_START, + WS_RX_CONT +} WS_RX_STATE; + +/* + * WebScoket buffer structure + */ +typedef struct ws_buffer_struct +{ + /* Data pointer. */ + uint8_t *data; + /* Write offset. */ + uint32_t offset; + /* buffer size. */ + uint32_t size; +} WS_BUFFER_STRUCT; + +/* + * WebSocket frame structure. + */ +typedef struct ws_frame_struct +{ + /* FIN flag. */ + bool fin; + /* Operation code. */ + uint32_t opcode; + /* Reserved field value. */ + uint32_t reserved; + /* Flag signalizing masked data. */ + bool masked; + /* Only frame length up to 32 bits is supported. */ + uint32_t length; + /* Mask for data unmasking. */ + uint32_t mask_key; + /* Pointer to received data. */ + uint8_t *data; +} WS_FRAME_STRUCT; + +typedef struct ws_utf8_struct +{ + /* Array index. */ + uint8_t index; + /* Buffer used for UTF-8 sequence validation. */ + uint8_t data[4]; + /* Number of missing bytes required to complete validation. */ + uint32_t missing; +} WS_UTF8_STRUCT; + +/*forward declaration */ +struct httpsrv_session_struct; + +/* + * WebSocket context + */ +typedef struct ws_context_struct +{ + /* Session used by WS. */ + struct httpsrv_session_struct *session; + /* Transmit buffer. */ + WS_BUFFER_STRUCT tx_buffer; + /* Receive data buffer. */ + WS_BUFFER_STRUCT rx_buffer; + /* Buffer for control frame. */ + WS_BUFFER_STRUCT ctrl_buffer; + /* Buffer for frame header. */ + WS_BUFFER_STRUCT hdr_buffer; + /* Pointer to actual buffer. */ + WS_BUFFER_STRUCT *actual_buffer; + /* Session state. */ + WS_SES_STATE state; + /* Receive transfer state. */ + WS_RX_STATE rx_state; + /* User context (for callbacks). */ + WS_USER_CONTEXT_STRUCT u_context; + /* Received frame structure. */ + WS_FRAME_STRUCT frame; + /* UTF-8 validation structure. */ + WS_UTF8_STRUCT utf8; + /* Number of data bytes received. */ + uint32_t rec_data_size; + /* + * Number of bytes of data (not frame header) + * remaining to read from socket. + */ + uint32_t remaining_data; + /* Message queue. Required for serialization of API calls. */ + sys_mbox_t api_queue; + /* Flag signaling that user transfer is in progress. */ + uint8_t u_transfer; + /* Mask offset. Required for data unmasking. */ + uint8_t mask_offset; +} WS_CONTEXT_STRUCT; + +/* + * Message send from API to session task + */ +typedef struct ws_api_call_msg +{ + /* Type of command (send or close). */ + WS_API_COMMAND command; + /* Pointer to frame to be send (ignored for close command). */ + WS_FRAME_STRUCT frame; +} WS_API_CALL_MSG; + +#ifdef __cplusplus +extern "C" { +#endif + +void ws_session_task(void *init_ptr, void *creator); +void ws_handshake(WS_HANDSHAKE_STRUCT *handshake); +void ws_session_run(struct httpsrv_session_struct *session); + +#ifdef __cplusplus +} +#endif + +#endif /* HTTPSRV_CFG_WEBSOCKET_ENABLED */ + +#endif diff --git a/middleware/lwip/src/apps/httpsrv/mkfs/mkfs.pl b/middleware/lwip/src/apps/httpsrv/mkfs/mkfs.pl new file mode 100644 index 0000000..9b55a12 --- /dev/null +++ b/middleware/lwip/src/apps/httpsrv/mkfs/mkfs.pl @@ -0,0 +1,232 @@ +#!/usr/bin/perl + +# Copyright (c) 2016, Freescale Semiconductor, Inc. +# Copyright 2016 NXP +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# o Redistributions of source code must retain the above copyright notice, this list +# of conditions and the following disclaimer. +# +# o Redistributions in binary form must reproduce the above copyright notice, this +# list of conditions and the following disclaimer in the documentation and/or +# other materials provided with the distribution. +# +# o Neither the name of the copyright holder nor the names of its +# contributors may be used to endorse or promote products derived from this +# software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR +# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +# Perl script to generate source code from static web pages - generates static file system. +# +# Run script from directory containing data directory! Script recursively searches files +# in data subdirectory. Script generates file httpsrv_fs_data.c which contains converted data +# (pages, pictures, ...) in C constant arrays. Separate C files can be created for selected +# input files. +# +# Perl: +# perl mkfs.pl -s +# +# Example: perl mkfs.pl -s image.bmp my_web + + +use File::Find; +use File::Compare; + + +# Get input + +%SEPARATE_FILES = (); +$INPUT_DIR = ""; +while(@ARGV) +{ + if ($ARGV[0] =~ /^-s$/) + { + shift @ARGV; + if (@ARGV == 0) { last; } + $tmp = $ARGV[0]; + $tmp =~ s#\\#/#g; + $SEPARATE_FILES{$tmp} = 1; + } else { + $INPUT_DIR = $ARGV[0]; + shift @ARGV; + last; + } + shift @ARGV; +} + +# Check input + +if (($INPUT_DIR =~ /^$/) || (@ARGV)) +{ + my $readme = + "\tThis tool creates C language source file httpsrv_fs_data.c with\n". + "\tconstant arrays of binary data of all input directory files.\n". + "\tData of selected files can be stored in separate C files.\n"; + + print "$readme\n"; + print "Usage:\n"; + print "mkfs.pl [-s ] \n"; + exit(0); +} + +# Gather files + +@INPUT_FILES = (); +find (\&get_files, $INPUT_DIR); + +# Open httpsrv_fs_data.tmp for writing + +open(OUTPUT, "> httpsrv_fs_data.tmp") or die "Can't create temporary file httpsrv_fs_data.tmp!\n"; +print(OUTPUT "#include \n\n"); +print(OUTPUT "extern const HTTPSRV_FS_DIR_ENTRY httpsrv_fs_data[];\n\n"); +foreach $file (@INPUT_FILES) +{ + $fvar = "httpsrv_fs_" . $file; + $fvar =~ s#[/\.]#_#g; + if ($SEPARATE_FILES{$file}) + { + $size = -s $file; + print(OUTPUT "extern const unsigned char " . $fvar . "[$size];\n\n"); + } +} + +# Process input files + +foreach $file (@INPUT_FILES) +{ + print "Processing file $file\n"; + $fvar = "httpsrv_fs_" . $file; + $fvar =~ s#[/\.]#_#g; + &process_file ($file, $fvar, $SEPARATE_FILES{$file}); +} + +# Finish httpsrv_fs_data.tmp file + +print(OUTPUT "const HTTPSRV_FS_DIR_ENTRY httpsrv_fs_data[] = {\n"); +foreach $file (@INPUT_FILES) +{ + $fvar = "httpsrv_fs_" . $file; + $fvar =~ s#[/\.]#_#g; + $dest = $file; + $dest =~ s/^$INPUT_DIR//; + print(OUTPUT "\t{ \"${dest}\", 0, "); + print(OUTPUT "(unsigned char*)${fvar}, sizeof(${fvar}) },\n"); +} +print(OUTPUT "\t{ 0, 0, 0, 0 }\n};\n\n"); +close(OUTPUT); + +# Rename temporary to *.c files + +$SEPARATE_FILES{"data"} = 1; +@INPUT_FILES = (@INPUT_FILES, "data"); +foreach $file (@INPUT_FILES) +{ + $fvar = "httpsrv_fs_" . $file; + $fvar =~ s#[/\.]#_#g; + if ($SEPARATE_FILES{$file}) + { + if (compare("${fvar}.tmp", "${fvar}.c") == 0) + { + unlink("${fvar}.tmp"); + } else { + if (&check_write_protect("${fvar}.c")) + { + rename("${fvar}.tmp", "${fvar}.c"); + } else { + unlink("${fvar}.tmp"); + } + } + } +} +print "Done.\n"; +exit(0); + + +################################################################################ + + +sub get_files +{ + if ((-f $_) && ($File::Find::name !~ /(CVS|~)/)) + { + $tmp = $File::Find::name; + $tmp =~ s#^/##; + @INPUT_FILES = (@INPUT_FILES, $tmp); + } +} + + +sub check_write_protect +{ + my ($file) = @_; + + if (-e $file && ! -w $file) + { + print "Overwriting read only file $file, are you sure? "; + $response = ; + chomp($response); + if ($response !~ /[Yy]/) + { + return 0; + } + system("attrib -R $file"); + } + return 1; +} + + +sub process_file +{ + my ($file, $fvar, $separate) = @_; + + open(FILE, $file) or die "Can't open file ${file}!\n"; + + binmode(FILE); + + $output = "OUTPUT"; + if ($separate) + { + $output = "SEPARATE"; + open($output, "> ${fvar}.tmp") or die "Can't create temporary file ${fvar}.tmp!\n"; + print($output "extern const unsigned char " . $fvar . "[];\n\n"); + print($output "const unsigned char " . $fvar . "[] = {\n"); + } else { + print($output "static const unsigned char " . $fvar . "[] = {\n"); + } + + print($output "\t/* $file */\n"); + + $sep = "\t"; + while(read(FILE, $data, 10, 0)) + { + foreach(split(//, $data)) + { + printf($output "${sep}0x%02x", ord($_)); + $sep = ", "; + } + $sep = ",\n\t"; + } + + print($output "\n};\n\n"); + + if ($separate) + { + close($output); + } + + close(FILE); +} + diff --git a/middleware/lwip/src/apps/lwiperf/lwiperf.c b/middleware/lwip/src/apps/lwiperf/lwiperf.c new file mode 100644 index 0000000..c47dba5 --- /dev/null +++ b/middleware/lwip/src/apps/lwiperf/lwiperf.c @@ -0,0 +1,1663 @@ +/** + * @file + * lwIP iPerf client/server implementation + */ + +/** + * @defgroup iperf Iperf client/server + * @ingroup apps + * + * This is a simple performance measuring client/server to check your bandwidth using + * iPerf2 on a PC as client/server. + * + * @todo: + * - protect combined sessions handling (via 'related_master_state') against reallocation + * (this is a pointer address, currently, so if the same memory is allocated again, + * session pairs (tx/rx) can be confused on reallocation) + * + */ + +/* + * Copyright (c) 2014 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + */ + +#include "lwip/apps/lwiperf.h" + +#include "lwip/udp.h" +#include "lwip/tcp.h" +#include "lwip/sys.h" +#include "lwip/inet.h" +#include "lwip/timeouts.h" +#include "lwip/igmp.h" +#include "lwip/mld6.h" + +#include + +/* Only use callback API for TCP & UDP */ +#if LWIP_CALLBACK_API && LWIP_TCP && LWIP_UDP + +/** Specify the idle timeout (in seconds) after that the test fails */ +#ifndef LWIPERF_MAX_IDLE_SEC +#define LWIPERF_MAX_IDLE_SEC 10U +#endif +#if LWIPERF_MAX_IDLE_SEC > 255 +#error LWIPERF_MAX_IDLE_SEC must fit into an u8_t +#endif + +/** Change this if you don't want to lwiperf to listen to any IP version */ +#ifndef LWIPERF_SERVER_IP_TYPE +#define LWIPERF_SERVER_IP_TYPE IPADDR_TYPE_ANY +#endif + +/* File internal memory allocation (struct lwiperf_*): this defaults to + the heap */ +#ifndef LWIPERF_ALLOC +#define LWIPERF_ALLOC(type) mem_malloc(sizeof(type)) +#define LWIPERF_FREE(type, item) mem_free(item) +#endif + +/** If this is 1, check that received data has the correct format */ +#ifndef LWIPERF_CHECK_RX_DATA +#define LWIPERF_CHECK_RX_DATA 0 +#endif + +/** The IDs of clocks used by clock_gettime() */ +#define CLOCK_MONOTONIC 1 + +/** The resolution of the clock in microseconds */ +#ifdef FSL_RTOS_FREE_RTOS +#include "portmacro.h" +#define CLOCK_RESOLUTION_US (portTICK_PERIOD_MS * 1000u) +#else +#define CLOCK_RESOLUTION_US 1000u +#endif + +#ifndef LWIP_TIMEVAL_PRIVATE +/** Added for compatibility */ +struct timespec { + long tv_sec; + long tv_nsec; +}; +#endif + +/** This is the Iperf settings struct sent from the client */ +typedef struct _lwiperf_settings { +#define LWIPERF_FLAGS_ANSWER_TEST 0x80000000 +#define LWIPERF_FLAGS_EXTEND 0x40000000 +#define LWIPERF_FLAGS_ANSWER_NOW 0x00000001 + u32_t flags; + u32_t num_threads; /* unused for now */ + u32_t remote_port; + u32_t buffer_len; /* unused for now */ + u32_t win_band; /* TCP window / UDP rate */ + u32_t amount; /* pos. value: bytes?; neg. values: time (unit is 10ms: 1/100 second) */ +} lwiperf_settings_t; + +typedef struct _lwiperf_settings_ext { +#define LWIPERF_EFLAGS_UNITS_PPS 0x00000001 + lwiperf_settings_t base; + s32_t type; + s32_t len; /* length from flags to real_time */ + s32_t eflags; + s32_t version_u; + s32_t version_l; + s32_t reserved; + s32_t rate; + s32_t UDP_rate_units; + s32_t real_time; +} lwiperf_settings_ext_t; + +/** This is the header structure for all UDP datagram */ +struct UDP_datagram { + int32_t id; + uint32_t tv_sec; + uint32_t tv_usec; +}; + +/** This is the Iperf reporting struct sent to the client */ +typedef struct _lwiperf_udp_report { + int32_t flags; /* LWIPERF_FLAGS_* */ + int32_t total_len1; + int32_t total_len2; + int32_t stop_sec; + int32_t stop_usec; + int32_t error_cnt; + int32_t outorder_cnt; + int32_t datagrams; + int32_t jitter1; + int32_t jitter2; +} lwiperf_udp_report_t; + +/** Basic connection handle */ +struct _lwiperf_state_base; +typedef struct _lwiperf_state_base lwiperf_state_base_t; +struct _lwiperf_state_base { + /* linked list */ + lwiperf_state_base_t *next; + /* 1=tcp, 0=udp */ + u8_t tcp; + /* 1=server, 0=client */ + u8_t server; + /* master state used to abort sessions (e.g. listener, main client) */ + lwiperf_state_base_t *related_master_state; +}; + +/** Connection handle for a UDP iperf session */ +typedef struct _lwiperf_state_udp { + lwiperf_state_base_t base; + struct udp_pcb *pcb; + struct pbuf *reported; + ip_addr_t remote_addr; + u16_t remote_port; + u8_t report_count; + u8_t have_settings_buf; + lwiperf_settings_ext_t settings; + u32_t delay_target; + u32_t frames_per_delay; + u32_t time_started; + u64_t bytes_transferred; + lwiperf_report_fn report_fn; + void *report_arg; + struct timespec udp_lastpkt; + u32_t udp_seq; + u32_t udp_rx_lost; + u32_t udp_rx_outorder; + u32_t udp_rx_total_pkt; + u32_t udp_rx_total_size; + u32_t udp_last_transit; + long jitter; +} lwiperf_state_udp_t; + +/** Connection handle for a TCP iperf session */ +typedef struct _lwiperf_state_tcp { + lwiperf_state_base_t base; + struct tcp_pcb *server_pcb; + struct tcp_pcb *conn_pcb; + u32_t time_started; + lwiperf_report_fn report_fn; + void *report_arg; + u8_t poll_count; + u8_t next_num; + /* 1=start server when client is closed */ + u8_t client_tradeoff_mode; + u64_t bytes_transferred; + lwiperf_settings_t settings; + u8_t have_settings_buf; + u8_t specific_remote; + ip_addr_t remote_addr; +} lwiperf_state_tcp_t; + +/** List of active iperf sessions */ +static lwiperf_state_base_t *lwiperf_all_connections; + +/** A const buffer to send from: we want to measure sending, not copying! */ +static const u8_t lwiperf_txbuf_const[1600] = { + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', +}; + +static err_t lwiperf_tcp_poll(void *arg, struct tcp_pcb *tpcb); +static void lwiperf_tcp_err(void *arg, err_t err); +static err_t lwiperf_start_tcp_server_impl(const ip_addr_t *local_addr, u16_t local_port, + lwiperf_report_fn report_fn, void *report_arg, + lwiperf_state_base_t *related_master_state, + lwiperf_state_tcp_t **state); +static void lwiperf_udp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *addr, u16_t port); +static err_t lwiperf_udp_tx_start(lwiperf_state_udp_t *conn); + +/** Get time roughly derived from lwIP's sys_now(), ms resolution clock */ +static int +clock_gettime(int clk_id, struct timespec *tp) +{ + u32_t now = sys_now(); + + tp->tv_sec = now / 1000; + tp->tv_nsec = (now % 1000) * 1000000; + + return 0; +} + +static inline void +diff_ts(const struct timespec *start, const struct timespec *stop, struct timespec *result) +{ + if ((stop->tv_nsec - start->tv_nsec) < 0) { + result->tv_sec = stop->tv_sec - start->tv_sec - 1; + result->tv_nsec = stop->tv_nsec - start->tv_nsec + 1000000000; + } else { + result->tv_sec = stop->tv_sec - start->tv_sec; + result->tv_nsec = stop->tv_nsec - start->tv_nsec; + } +} + +/** Add an iperf session to the 'active' list */ +static void +lwiperf_list_add(lwiperf_state_base_t *item) +{ + item->next = lwiperf_all_connections; + lwiperf_all_connections = item; +} + +/** Remove an iperf session from the 'active' list */ +static void +lwiperf_list_remove(lwiperf_state_base_t *item) +{ + lwiperf_state_base_t *prev = NULL; + lwiperf_state_base_t *iter; + for (iter = lwiperf_all_connections; iter != NULL; prev = iter, iter = iter->next) { + if (iter == item) { + if (prev == NULL) { + lwiperf_all_connections = iter->next; + } else { + prev->next = iter->next; + } + /* @debug: ensure this item is listed only once */ + for (iter = iter->next; iter != NULL; iter = iter->next) { + LWIP_ASSERT("duplicate entry", iter != item); + } + break; + } + } +} + +static lwiperf_state_base_t * +lwiperf_list_find(lwiperf_state_base_t *item) +{ + lwiperf_state_base_t *iter; + for (iter = lwiperf_all_connections; iter != NULL; iter = iter->next) { + if (iter == item) { + return item; + } + } + return NULL; +} + +/** Call the report function of an iperf tcp session */ +static void +lwip_tcp_conn_report(lwiperf_state_tcp_t *conn, enum lwiperf_report_type report_type) +{ + if ((conn != NULL) && (conn->report_fn != NULL)) { + u32_t now, duration_ms, bandwidth_kbitpsec; + now = sys_now(); + duration_ms = now - conn->time_started; + if (duration_ms == 0) { + bandwidth_kbitpsec = 0; + } else { + bandwidth_kbitpsec = (u32_t)((conn->bytes_transferred * 8U) / duration_ms); + } + if (conn->conn_pcb) + conn->report_fn(conn->report_arg, report_type, + &conn->conn_pcb->local_ip, conn->conn_pcb->local_port, + &conn->conn_pcb->remote_ip, conn->conn_pcb->remote_port, + conn->bytes_transferred, duration_ms, bandwidth_kbitpsec); + else if (conn->server_pcb) + conn->report_fn(conn->report_arg, report_type, + &conn->server_pcb->local_ip, conn->server_pcb->local_port, + &conn->server_pcb->remote_ip, conn->server_pcb->remote_port, + conn->bytes_transferred, duration_ms, bandwidth_kbitpsec); + else + conn->report_fn(conn->report_arg, report_type, NULL, 0, NULL, 0, 0, 0, 0); + } +} + +/** Close an iperf tcp session */ +static void +lwiperf_tcp_close(lwiperf_state_tcp_t *conn, enum lwiperf_report_type report_type) +{ + err_t err; + + lwiperf_list_remove(&conn->base); + lwip_tcp_conn_report(conn, report_type); + if (conn->conn_pcb != NULL) { + tcp_arg(conn->conn_pcb, NULL); + tcp_poll(conn->conn_pcb, NULL, 0); + tcp_sent(conn->conn_pcb, NULL); + tcp_recv(conn->conn_pcb, NULL); + tcp_err(conn->conn_pcb, NULL); + err = tcp_close(conn->conn_pcb); + if (err != ERR_OK) { + /* don't want to wait for free memory here... */ + tcp_abort(conn->conn_pcb); + } + } + else if (conn->server_pcb) { + /* no conn pcb, this is the listener pcb */ + err = tcp_close(conn->server_pcb); + LWIP_ASSERT("error", err == ERR_OK); + } + LWIPERF_FREE(lwiperf_state_tcp_t, conn); +} + +/** Try to send more data on an iperf tcp session */ +static err_t +lwiperf_tcp_client_send_more(lwiperf_state_tcp_t *conn) +{ + int send_more; + err_t err; + u16_t txlen; + u16_t txlen_max; + void *txptr; + u8_t apiflags; + + LWIP_ASSERT("conn invalid", (conn != NULL) && conn->base.tcp && (conn->base.server == 0)); + + do { + send_more = 0; + if (conn->settings.amount & PP_HTONL(0x80000000)) { + /* this session is time-limited */ + u32_t now = sys_now(); + u32_t diff_ms = now - conn->time_started; + u32_t time = (u32_t) - (s32_t)lwip_ntohl(conn->settings.amount); + u32_t time_ms = time * 10; + if (diff_ms >= time_ms) { + /* time specified by the client is over -> close the connection */ + lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_CLIENT); + return ERR_OK; + } + } else { + /* this session is byte-limited */ + u32_t amount_bytes = lwip_ntohl(conn->settings.amount); + /* @todo: this can send up to 1*MSS more than requested... */ + if (amount_bytes >= conn->bytes_transferred) { + /* all requested bytes transferred -> close the connection */ + lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_CLIENT); + return ERR_OK; + } + } + + if (conn->bytes_transferred < 24) { + /* transmit the settings a first time */ + txptr = &((u8_t *)&conn->settings)[conn->bytes_transferred]; + txlen_max = (u16_t)(24 - conn->bytes_transferred); + apiflags = TCP_WRITE_FLAG_COPY; + } else if (conn->bytes_transferred < 48) { + /* transmit the settings a second time */ + txptr = &((u8_t *)&conn->settings)[conn->bytes_transferred - 24]; + txlen_max = (u16_t)(48 - conn->bytes_transferred); + apiflags = TCP_WRITE_FLAG_COPY | TCP_WRITE_FLAG_MORE; + send_more = 1; + } else { + /* transmit data */ + /* @todo: every x bytes, transmit the settings again */ + txptr = LWIP_CONST_CAST(void *, &lwiperf_txbuf_const[conn->bytes_transferred % 10]); + txlen_max = TCP_MSS; + if (conn->bytes_transferred == 48) { /* @todo: fix this for intermediate settings, too */ + txlen_max = TCP_MSS - 24; + } + apiflags = 0; /* no copying needed */ + send_more = 1; + } + txlen = txlen_max; + do { + err = tcp_write(conn->conn_pcb, txptr, txlen, apiflags); + if (err == ERR_MEM) { + txlen /= 2; + } + } while ((err == ERR_MEM) && (txlen >= (TCP_MSS / 2))); + + if (err == ERR_OK) { + conn->bytes_transferred += txlen; + } else { + send_more = 0; + } + } while (send_more); + + tcp_output(conn->conn_pcb); + return ERR_OK; +} + +/** TCP sent callback, try to send more data */ +static err_t +lwiperf_tcp_client_sent(void *arg, struct tcp_pcb *tpcb, u16_t len) +{ + lwiperf_state_tcp_t *conn = (lwiperf_state_tcp_t *)arg; + /* @todo: check 'len' (e.g. to time ACK of all data)? for now, we just send more... */ + LWIP_ASSERT("invalid conn", conn->conn_pcb == tpcb); + LWIP_UNUSED_ARG(tpcb); + LWIP_UNUSED_ARG(len); + + conn->poll_count = 0; + + return lwiperf_tcp_client_send_more(conn); +} + +/** TCP connected callback (active connection), send data now */ +static err_t +lwiperf_tcp_client_connected(void *arg, struct tcp_pcb *tpcb, err_t err) +{ + lwiperf_state_tcp_t *conn = (lwiperf_state_tcp_t *)arg; + LWIP_ASSERT("invalid conn", conn->conn_pcb == tpcb); + LWIP_UNUSED_ARG(tpcb); + if (err != ERR_OK) { + lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE); + return ERR_OK; + } + conn->poll_count = 0; + conn->time_started = sys_now(); + return lwiperf_tcp_client_send_more(conn); +} + +/** Start TCP connection back to the client (either parallel or after the + * receive test has finished. + */ +static err_t +lwiperf_tx_start_impl(const ip_addr_t *remote_ip, u16_t remote_port, lwiperf_settings_t *settings, lwiperf_report_fn report_fn, + void *report_arg, lwiperf_state_base_t *related_master_state, lwiperf_state_tcp_t **new_conn) +{ + err_t err; + lwiperf_state_tcp_t *client_conn; + struct tcp_pcb *newpcb; + ip_addr_t remote_addr; + + LWIP_ASSERT("remote_ip != NULL", remote_ip != NULL); + LWIP_ASSERT("remote_ip != NULL", settings != NULL); + LWIP_ASSERT("new_conn != NULL", new_conn != NULL); + *new_conn = NULL; + + client_conn = (lwiperf_state_tcp_t *)LWIPERF_ALLOC(lwiperf_state_tcp_t); + if (client_conn == NULL) { + return ERR_MEM; + } + newpcb = tcp_new_ip_type(IP_GET_TYPE(remote_ip)); + if (newpcb == NULL) { + LWIPERF_FREE(lwiperf_state_tcp_t, client_conn); + return ERR_MEM; + } + memset(client_conn, 0, sizeof(lwiperf_state_tcp_t)); + client_conn->base.tcp = 1; + client_conn->base.related_master_state = related_master_state; + client_conn->conn_pcb = newpcb; + client_conn->time_started = sys_now(); /* @todo: set this again on 'connected' */ + client_conn->report_fn = report_fn; + client_conn->report_arg = report_arg; + client_conn->next_num = 4; /* initial nr is '4' since the header has 24 byte */ + client_conn->bytes_transferred = 0; + memcpy(&client_conn->settings, settings, sizeof(*settings)); + client_conn->have_settings_buf = 1; + + tcp_arg(newpcb, client_conn); + tcp_sent(newpcb, lwiperf_tcp_client_sent); + tcp_poll(newpcb, lwiperf_tcp_poll, 2U); + tcp_err(newpcb, lwiperf_tcp_err); + + ip_addr_copy(remote_addr, *remote_ip); + + err = tcp_connect(newpcb, &remote_addr, remote_port, lwiperf_tcp_client_connected); + if (err != ERR_OK) { + lwiperf_tcp_close(client_conn, LWIPERF_TCP_ABORTED_LOCAL); + return err; + } + lwiperf_list_add(&client_conn->base); + *new_conn = client_conn; + return ERR_OK; +} + +static err_t +lwiperf_tx_start_passive(lwiperf_state_tcp_t *conn) +{ + err_t ret; + lwiperf_state_tcp_t *new_conn = NULL; + u16_t remote_port = (u16_t)lwip_htonl(conn->settings.remote_port); + + ret = lwiperf_tx_start_impl(&conn->conn_pcb->remote_ip, remote_port, &conn->settings, conn->report_fn, conn->report_arg, + conn->base.related_master_state, &new_conn); + if (ret == ERR_OK) { + LWIP_ASSERT("new_conn != NULL", new_conn != NULL); + new_conn->settings.flags = 0; /* prevent the remote side starting back as client again */ + } + return ret; +} + +/** Receive data on an iperf tcp session */ +static err_t +lwiperf_tcp_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err) +{ + u8_t tmp; + u16_t tot_len; + u32_t packet_idx; + struct pbuf *q; + lwiperf_state_tcp_t *conn = (lwiperf_state_tcp_t *)arg; + + LWIP_ASSERT("pcb mismatch", conn->conn_pcb == tpcb); + LWIP_UNUSED_ARG(tpcb); + + if (err != ERR_OK) { + lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE); + return ERR_OK; + } + if (p == NULL) { + /* connection closed -> test done */ + if (conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST)) { + if ((conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_NOW)) == 0) { + /* client requested transmission after end of test */ + LWIP_PLATFORM_DIAG(("client requested transmission after end of test\n")); + lwiperf_tx_start_passive(conn); + } + } + lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_SERVER); + return ERR_OK; + } + tot_len = p->tot_len; + + conn->poll_count = 0; + + if ((!conn->have_settings_buf) || ((conn->bytes_transferred - 24) % (1024 * 128) == 0)) { + /* wait for 24-byte header */ + if (p->tot_len < sizeof(lwiperf_settings_t)) { + lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR); + pbuf_free(p); + return ERR_OK; + } + if (!conn->have_settings_buf) { + if (pbuf_copy_partial(p, &conn->settings, sizeof(lwiperf_settings_t), 0) != sizeof(lwiperf_settings_t)) { + lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL); + pbuf_free(p); + return ERR_OK; + } + conn->have_settings_buf = 1; + LWIP_PLATFORM_DIAG(("New TCP client (settings flags 0x%x)\n", lwip_ntohl(conn->settings.flags))); + if (conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST)) { + if (conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_NOW)) { + /* client requested parallel transmission test */ + LWIP_PLATFORM_DIAG(("client requested parallel transmission test\n")); + err_t err2 = lwiperf_tx_start_passive(conn); + if (err2 != ERR_OK) { + lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_TXERROR); + pbuf_free(p); + return ERR_OK; + } + } + } + } else { + if (conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST)) { + if (pbuf_memcmp(p, 0, &conn->settings, sizeof(lwiperf_settings_t)) != 0) { + lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR); + pbuf_free(p); + return ERR_OK; + } + } + } + conn->bytes_transferred += sizeof(lwiperf_settings_t); + if (conn->bytes_transferred <= 24) { + conn->time_started = sys_now(); + tcp_recved(tpcb, p->tot_len); + pbuf_free(p); + return ERR_OK; + } + conn->next_num = 4; /* 24 bytes received... */ + tmp = pbuf_remove_header(p, 24); + LWIP_ASSERT("pbuf_remove_header failed", tmp == 0); + LWIP_UNUSED_ARG(tmp); /* for LWIP_NOASSERT */ + } + + packet_idx = 0; + for (q = p; q != NULL; q = q->next) { +#if LWIPERF_CHECK_RX_DATA + const u8_t *payload = (const u8_t *)q->payload; + u16_t i; + for (i = 0; i < q->len; i++) { + u8_t val = payload[i]; + u8_t num = val - '0'; + if (num == conn->next_num) { + conn->next_num++; + if (conn->next_num == 10) { + conn->next_num = 0; + } + } else { + lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR); + pbuf_free(p); + return ERR_OK; + } + } +#endif + packet_idx += q->len; + } + LWIP_ASSERT("count mismatch", packet_idx == p->tot_len); + conn->bytes_transferred += packet_idx; + tcp_recved(tpcb, tot_len); + pbuf_free(p); + return ERR_OK; +} + +/** Error callback, iperf tcp session aborted */ +static void +lwiperf_tcp_err(void *arg, err_t err) +{ + lwiperf_state_tcp_t *conn = (lwiperf_state_tcp_t *)arg; + LWIP_UNUSED_ARG(err); + /* lwiperf_tcp_close MUST not close itself conn_pcb */ + conn->conn_pcb = NULL; + lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE); +} + +/** TCP poll callback, try to send more data */ +static err_t +lwiperf_tcp_poll(void *arg, struct tcp_pcb *tpcb) +{ + lwiperf_state_tcp_t *conn = (lwiperf_state_tcp_t *)arg; + LWIP_ASSERT("pcb mismatch", conn->conn_pcb == tpcb); + LWIP_UNUSED_ARG(tpcb); + if (++conn->poll_count >= LWIPERF_MAX_IDLE_SEC) { + lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL); + return ERR_OK; /* lwiperf_tcp_close frees conn */ + } + + if (!conn->base.server) { + lwiperf_tcp_client_send_more(conn); + } + + return ERR_OK; +} + +/** This is called when a new client connects for an iperf tcp session */ +static err_t +lwiperf_tcp_accept(void *arg, struct tcp_pcb *newpcb, err_t err) +{ + lwiperf_state_tcp_t *s, *conn; + if ((err != ERR_OK) || (newpcb == NULL) || (arg == NULL)) { + return ERR_VAL; + } + + s = (lwiperf_state_tcp_t *)arg; + LWIP_ASSERT("invalid session", s->base.server); + LWIP_ASSERT("invalid listen pcb", s->server_pcb != NULL); + LWIP_ASSERT("invalid conn pcb", s->conn_pcb == NULL); + if (s->specific_remote) { + LWIP_ASSERT("s->base.related_master_state != NULL", s->base.related_master_state != NULL); + if (!ip_addr_eq(&newpcb->remote_ip, &s->remote_addr)) { + /* this listener belongs to a client session, and this is not the correct remote */ + return ERR_VAL; + } + } else { + LWIP_ASSERT("s->base.related_master_state == NULL", s->base.related_master_state == NULL); + } + + conn = (lwiperf_state_tcp_t *)LWIPERF_ALLOC(lwiperf_state_tcp_t); + if (conn == NULL) { + return ERR_MEM; + } + memset(conn, 0, sizeof(lwiperf_state_tcp_t)); + conn->base.tcp = 1; + conn->base.server = 1; + conn->base.related_master_state = &s->base; + conn->conn_pcb = newpcb; + conn->time_started = sys_now(); + conn->report_fn = s->report_fn; + conn->report_arg = s->report_arg; + + /* setup the tcp rx connection */ + tcp_arg(newpcb, conn); + tcp_recv(newpcb, lwiperf_tcp_recv); + tcp_poll(newpcb, lwiperf_tcp_poll, 2U); + tcp_err(newpcb, lwiperf_tcp_err); + + if (s->specific_remote) { + /* this listener belongs to a client, so make the client the master of the newly created connection */ + conn->base.related_master_state = s->base.related_master_state; + /* if dual mode or (tradeoff mode AND client is done): close the listener */ + if (!s->client_tradeoff_mode || !lwiperf_list_find(s->base.related_master_state)) { + /* prevent report when closing: this is expected */ + s->report_fn = NULL; + lwiperf_tcp_close(s, LWIPERF_TCP_ABORTED_LOCAL); + } + } + lwiperf_list_add(&conn->base); + return ERR_OK; +} + +/** + * @ingroup iperf + * Start a TCP iperf server on the default TCP port (5001) and listen for + * incoming connections from iperf clients. + * + * @returns a connection handle that can be used to abort the server + * by calling @ref lwiperf_abort() + */ +void * +lwiperf_start_tcp_server_default(lwiperf_report_fn report_fn, void *report_arg) +{ + return lwiperf_start_tcp_server(IP_ADDR_ANY, LWIPERF_TCP_PORT_DEFAULT, + report_fn, report_arg); +} + +/** + * @ingroup iperf + * Start a TCP iperf server on a specific IP address and port and listen for + * incoming connections from iperf clients. + * + * @returns a connection handle that can be used to abort the server + * by calling @ref lwiperf_abort() + */ +void * +lwiperf_start_tcp_server(const ip_addr_t *local_addr, u16_t local_port, + lwiperf_report_fn report_fn, void *report_arg) +{ + err_t err; + lwiperf_state_tcp_t *state = NULL; + + err = lwiperf_start_tcp_server_impl(local_addr, local_port, report_fn, report_arg, + NULL, &state); + if (err == ERR_OK) { + return state; + } + return NULL; +} + +static err_t +lwiperf_start_tcp_server_impl(const ip_addr_t *local_addr, u16_t local_port, + lwiperf_report_fn report_fn, void *report_arg, + lwiperf_state_base_t *related_master_state, + lwiperf_state_tcp_t **state) +{ + err_t err; + struct tcp_pcb *pcb; + lwiperf_state_tcp_t *s; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ASSERT("state != NULL", state != NULL); + + if (local_addr == NULL) { + return ERR_ARG; + } + + s = (lwiperf_state_tcp_t *)LWIPERF_ALLOC(lwiperf_state_tcp_t); + if (s == NULL) { + return ERR_MEM; + } + memset(s, 0, sizeof(lwiperf_state_tcp_t)); + s->base.tcp = 1; + s->base.server = 1; + s->base.related_master_state = related_master_state; + s->report_fn = report_fn; + s->report_arg = report_arg; + + pcb = tcp_new_ip_type(LWIPERF_SERVER_IP_TYPE); + if (pcb == NULL) { + return ERR_MEM; + } + err = tcp_bind(pcb, local_addr, local_port); + if (err != ERR_OK) { + return err; + } + s->server_pcb = tcp_listen_with_backlog(pcb, 1); + if (s->server_pcb == NULL) { + if (pcb != NULL) { + tcp_close(pcb); + } + LWIPERF_FREE(lwiperf_state_tcp_t, s); + return ERR_MEM; + } + pcb = NULL; + + tcp_arg(s->server_pcb, s); + tcp_accept(s->server_pcb, lwiperf_tcp_accept); + + lwiperf_list_add(&s->base); + *state = s; + return ERR_OK; +} + +/** + * @ingroup iperf + * Start a TCP iperf client to the default TCP port (5001). + * + * @returns a connection handle that can be used to abort the client + * by calling @ref lwiperf_abort() + */ +void * +lwiperf_start_tcp_client_default(const ip_addr_t* remote_addr, + lwiperf_report_fn report_fn, void* report_arg) +{ + return lwiperf_start_tcp_client(remote_addr, LWIPERF_TCP_PORT_DEFAULT, LWIPERF_CLIENT, -1000, + report_fn, report_arg); +} + +/** + * @ingroup iperf + * Start a TCP iperf client to a specific IP address and port. + * + * @returns a connection handle that can be used to abort the client + * by calling @ref lwiperf_abort() + */ +void * +lwiperf_start_tcp_client(const ip_addr_t* remote_addr, u16_t remote_port, + enum lwiperf_client_type type, int amount, + lwiperf_report_fn report_fn, void* report_arg) +{ + err_t ret; + lwiperf_settings_t settings; + lwiperf_state_tcp_t *state = NULL; + + memset(&settings, 0, sizeof(settings)); + switch (type) { + case LWIPERF_CLIENT: + /* Unidirectional tx only test */ + settings.flags = 0; + break; + case LWIPERF_DUAL: + /* Do a bidirectional test simultaneously */ + settings.flags = htonl(LWIPERF_FLAGS_ANSWER_TEST | LWIPERF_FLAGS_ANSWER_NOW); + break; + case LWIPERF_TRADEOFF: + /* Do a bidirectional test individually */ + settings.flags = htonl(LWIPERF_FLAGS_ANSWER_TEST); + break; + default: + /* invalid argument */ + return NULL; + } + settings.num_threads = htonl(1); + settings.remote_port = htonl(LWIPERF_TCP_PORT_DEFAULT); + settings.amount = htonl((u32_t)amount); + + ret = lwiperf_tx_start_impl(remote_addr, remote_port, &settings, report_fn, report_arg, NULL, &state); + if (ret == ERR_OK) { + LWIP_ASSERT("state != NULL", state != NULL); + if (type != LWIPERF_CLIENT) { + /* start corresponding server now */ + lwiperf_state_tcp_t *server = NULL; + ret = lwiperf_start_tcp_server_impl(&state->conn_pcb->local_ip, LWIPERF_TCP_PORT_DEFAULT, + report_fn, report_arg, (lwiperf_state_base_t *)state, &server); + if (ret != ERR_OK) { + /* starting server failed, abort client */ + lwiperf_abort(state); + return NULL; + } + /* make this server accept one connection only */ + server->specific_remote = 1; + server->remote_addr = state->conn_pcb->remote_ip; + if (type == LWIPERF_TRADEOFF) { + /* tradeoff means that the remote host connects only after the client is done, + so keep the listen pcb open until the client is done */ + server->client_tradeoff_mode = 1; + } + } + return state; + } + return NULL; +} + +/** This is called when a new client connects for an iperf udp session */ +static lwiperf_state_udp_t * +lwiperf_udp_new_client(lwiperf_state_udp_t *s) +{ + lwiperf_state_udp_t *conn; + if (s == NULL) + return NULL; + conn = (lwiperf_state_udp_t *)LWIPERF_ALLOC(lwiperf_state_udp_t); + if (conn == NULL) + return NULL; + memset(conn, 0, sizeof(lwiperf_state_udp_t)); + conn->base.tcp = 0; + conn->base.server = 1; + conn->base.related_master_state = &s->base; + conn->pcb = NULL; + conn->time_started = sys_now(); + conn->report_fn = s->report_fn; + conn->report_arg = s->report_arg; + lwiperf_list_add(&conn->base); + return conn; +} + +/** This is called when a new client connects for an iperf udp session */ +static lwiperf_state_udp_t * +lwiperf_udp_search_client(lwiperf_state_udp_t *s, + const ip_addr_t *addr, u16_t port) +{ + lwiperf_state_udp_t *iter; + for (iter = (lwiperf_state_udp_t *)lwiperf_all_connections; + iter != NULL; + iter = (lwiperf_state_udp_t *)iter->base.next) { + if (iter->base.tcp || !iter->base.related_master_state) + continue; + if (iter->base.related_master_state != (lwiperf_state_base_t *)s) + continue; + if (ip_addr_eq(addr, &iter->remote_addr) && (port == iter->remote_port)) + break; + } + return iter; +} + + +/** Call the report function of an iperf tcp session */ +static void +lwip_udp_conn_report(lwiperf_state_udp_t *conn, enum lwiperf_report_type report_type) +{ + if ((conn != NULL) && (conn->report_fn != NULL)) { + u32_t now, duration_ms, bandwidth_kbitpsec; + now = sys_now(); + duration_ms = now - conn->time_started; + if (duration_ms == 0) { + bandwidth_kbitpsec = 0; + } else { + bandwidth_kbitpsec = (u32_t)((8ull * conn->bytes_transferred) / duration_ms); + } + + ip_addr_t *local_ip = NULL; + u16_t local_port = 0u; + + if (conn->pcb != NULL) { + local_ip = &(conn->pcb->local_ip); + local_port = conn->pcb->local_port; + } else if (conn->base.related_master_state != NULL) { + /* conn->pcb is NULL for incoming UDP clients, try to take local IP + * and port number from server pcb stored in related master state + */ + lwiperf_state_udp_t *s = (lwiperf_state_udp_t *)conn->base.related_master_state; + if (s->pcb != NULL) { + local_ip = &(s->pcb->local_ip); + local_port = s->pcb->local_port; + } + } + + conn->report_fn(conn->report_arg, report_type, + local_ip, local_port, + &conn->remote_addr, conn->remote_port, + conn->bytes_transferred, duration_ms, bandwidth_kbitpsec); + } +} + +/** Close an iperf udp session */ +static void +lwiperf_udp_close(lwiperf_state_udp_t *conn, enum lwiperf_report_type report_type) +{ + lwip_udp_conn_report(conn, report_type); + lwiperf_list_remove(&conn->base); + if (conn->pcb != NULL) { + ip_addr_t *local_addr = &conn->pcb->local_ip; + if (ip_addr_ismulticast(local_addr)) { + if (IP_IS_V6 (local_addr)) { +#if LWIP_IPV6_MLD + mld6_leavegroup (IP6_ADDR_ANY6, ip_2_ip6 (local_addr)); +#endif + } + else { +#if LWIP_IGMP + igmp_leavegroup (IP4_ADDR_ANY4, ip_2_ip4 (local_addr)); +#endif + } + } + udp_remove(conn->pcb); + conn->pcb = NULL; + } + LWIPERF_FREE(lwiperf_state_udp_t, conn); +} + +/** Receive data on an iperf udp session */ +static void +lwiperf_udp_send_report(lwiperf_state_udp_t *conn) +{ + lwiperf_state_udp_t *s = (lwiperf_state_udp_t *)conn->base.related_master_state; + struct pbuf *q = conn->reported; + LWIP_ASSERT("no report buffer!", q != NULL); + udp_sendto(s->pcb, q, &conn->remote_addr, conn->remote_port); + conn->report_count++; + if (conn->report_count < 2) { + /* Send twice after a little delay! */ + sys_timeout(10, (sys_timeout_handler)lwiperf_udp_send_report, conn); + } else { + pbuf_free(q); + conn->reported = NULL; + /* reported twice -> test done */ + if (conn->settings.base.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST)) { + if ((conn->settings.base.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_NOW)) == 0) { + /* client requested transmission after end of test */ + LWIP_PLATFORM_DIAG(("client requested transmission after end of test\n")); + lwiperf_udp_tx_start(conn); + } + } + lwiperf_udp_close(conn, LWIPERF_UDP_DONE_SERVER); + if (s->base.server & 0x80) { + /* this is a temporary server for tradeoff or dualtest, ensure no report for this temporary server */ + s->report_fn = NULL; + lwiperf_udp_close(s, LWIPERF_UDP_DONE_SERVER); + } + } +} + +static void +lwiperf_udp_set_client_rate(lwiperf_state_udp_t *c, s32_t rate, u32_t buf_len) +{ + /* compute delay for bandwidth restriction, constrained to [0,1]s in microseconds */ + c->delay_target = (uint32_t)((buf_len * 8 * 1000000ull) / rate); + LWIP_PLATFORM_DIAG(("Ideal frame delay: %lu us\n", c->delay_target)); + /* truncate the delay according to clock resolution, may result in a higher bitrate */ + c->delay_target = (c->delay_target / CLOCK_RESOLUTION_US) * CLOCK_RESOLUTION_US; + if (c->delay_target == 0u) { + /* bitrate is high - have to send more than 1 frame per CLOCK_RESOLUTION_US + * period, may result in a lower bitrate and/or a higher jitter */ + c->delay_target = CLOCK_RESOLUTION_US; + c->frames_per_delay = CLOCK_RESOLUTION_US / (uint32_t)((buf_len * 8 * 1000000ull) / rate); + } else { + c->frames_per_delay = 1u; + } + LWIP_PLATFORM_DIAG(("Send %u frame(s) once per %lu us\n", c->frames_per_delay, c->delay_target)); +} + +/** Try to send more data on an iperf udp session */ +/* Must be called in main loop */ +static void +lwiperf_udp_client_send_more(lwiperf_state_udp_t *conn) +{ + struct pbuf *p; + struct timespec ts, dt; + err_t err; + int ending = 0; + int i; + + LWIP_ASSERT("conn invalid", (conn != NULL) && !conn->base.tcp && (conn->base.server == 0)); + + if (conn->settings.base.amount & PP_HTONL(0x80000000)) { + /* this session is time-limited */ + u32_t now = sys_now(); + u32_t diff_ms = now - conn->time_started; + u32_t time = (u32_t) - (s32_t)lwip_ntohl(conn->settings.base.amount); + u32_t time_ms = time * 10; + if (diff_ms >= time_ms) { + ending = 1; + if (diff_ms > (time_ms + 500)) + ending ++; + } + } else { + /* this session is byte-limited */ + u32_t amount_bytes = lwip_ntohl(conn->settings.base.amount); + if (conn->bytes_transferred >= amount_bytes) { + ending = 1; + if (conn->bytes_transferred >= (amount_bytes + 4096)) + ending++; + } + } + if (ending && (ending > 1 || conn->report_count > 0)) { + lwiperf_udp_close(conn, LWIPERF_UDP_DONE_CLIENT); + return; + } + /* check time/bw */ + clock_gettime(CLOCK_MONOTONIC, &ts); + diff_ts(&conn->udp_lastpkt, &ts, &dt); + if ((uint32_t)((dt.tv_sec * 1000000) + (dt.tv_nsec / 1000)) < conn->delay_target) + return; + + for (i = 0; i < conn->frames_per_delay; i++) { + /* make pbuf to transmit */ + p = pbuf_alloc(PBUF_TRANSPORT, lwip_ntohl(conn->settings.base.buffer_len), PBUF_POOL); + if (p) { + struct UDP_datagram *pkt = (struct UDP_datagram *)p->payload; + int hsz = (conn->settings.base.flags & PP_HTONL(LWIPERF_FLAGS_EXTEND) ? + sizeof(conn->settings) : sizeof(conn->settings.base)); + int offset = sizeof(struct UDP_datagram); + /* set UDP datagram header */ + if (ending) + pkt->id = htonl(-conn->udp_seq); + else + pkt->id = htonl(conn->udp_seq); + pkt->tv_sec = htonl(ts.tv_sec); + pkt->tv_usec = htonl(ts.tv_nsec / 1000); + /* save last packet time */ + conn->udp_lastpkt = ts; + /* add settings in all buffer sent */ + pbuf_take_at(p, &conn->settings, hsz, offset); + offset += hsz; + /* add data */ + pbuf_take_at(p, &lwiperf_txbuf_const[0], p->tot_len - offset, offset); + /* send it */ + err = udp_send(conn->pcb, p); + if (err == ERR_OK) { + conn->udp_seq++; + conn->bytes_transferred += p->tot_len; + } else { + /* Do not close connection when udp_send() fails - tx may be overloaded + * momentarily, the datagram will be just lost: */ + /* lwiperf_udp_close(conn, LWIPERF_UDP_ABORTED_LOCAL_TXERROR); */ + /* release pbuf */ + pbuf_free(p); + return; + } + /* release pbuf */ + pbuf_free(p); + /* adjust delay for ending retries */ + if (ending) { + conn->delay_target = 250000; /* ending retry delay : 250ms */ + conn->frames_per_delay = 1U; + } + } else { + /* Do not close connection when pbuf_alloc() fails - it may recover later */ + /* lwiperf_udp_close(conn, LWIPERF_UDP_ABORTED_LOCAL); */ + return; + } + } +} + +/** Create a new UDP connection back to the client. + */ +static lwiperf_state_udp_t * +lwiperf_udp_tx_new(lwiperf_state_udp_t *conn) +{ + lwiperf_state_udp_t *client_conn; + struct udp_pcb *newpcb; + + client_conn = (lwiperf_state_udp_t *)LWIPERF_ALLOC(lwiperf_state_udp_t); + if (client_conn == NULL) { + return NULL; + } + memset(client_conn, 0, sizeof(lwiperf_state_udp_t)); + newpcb = udp_new(); + if (newpcb == NULL) { + LWIPERF_FREE(lwiperf_state_udp_t, client_conn); + return NULL; + } + if (conn) { + MEMCPY(client_conn, conn, sizeof(lwiperf_state_udp_t)); + } + client_conn->base.tcp = 0; + client_conn->base.server = 0; + client_conn->pcb = newpcb; + client_conn->time_started = sys_now(); + client_conn->bytes_transferred = 0; + client_conn->settings.base.flags = 0; /* prevent the remote side starting back as client again */ + + udp_recv(newpcb, lwiperf_udp_recv, client_conn); + return client_conn; +} + +/** Start UDP connection back to the client (either parallel or after the + * receive test has finished). + */ +static err_t +lwiperf_udp_tx_start(lwiperf_state_udp_t *conn) +{ + lwiperf_state_udp_t *cc; + u32_t buf_len; + err_t err; + + cc = lwiperf_udp_tx_new(conn); + if (cc == NULL) { + return ERR_MEM; + } + /* take remote port to use from received settings */ + cc->remote_port = (u16_t)lwip_htonl(cc->settings.base.remote_port); + /* buffer_len depend on address type */ + buf_len = (u32_t)(IP_IS_V6(&cc->remote_addr) ? 1450 : 1470); + cc->settings.base.buffer_len = lwip_htonl(buf_len); + /* compute delay for bandwidth restriction, constrained to [0,1000] milliseconds */ + /* 10Mbit/s by default if not extended settings */ + if (cc->settings.base.flags & PP_HTONL(LWIPERF_FLAGS_EXTEND)) { + lwiperf_udp_set_client_rate(cc, lwip_ntohl(cc->settings.rate), buf_len); + } + else if (cc->settings.base.win_band != 0) { + lwiperf_udp_set_client_rate(cc, lwip_ntohl(cc->settings.base.win_band), buf_len); + } + else { + lwiperf_udp_set_client_rate(cc, (1024 * 1024), buf_len); + } + + err = udp_connect(cc->pcb, &cc->remote_addr, cc->remote_port); + if (err != ERR_OK) { + lwiperf_udp_close(cc, LWIPERF_TCP_ABORTED_LOCAL); + return err; + } + lwiperf_list_add(&cc->base); + /* start sending immediately */ + lwiperf_udp_client_send_more(cc); + return ERR_OK; +} + +/** Receive data on an iperf udp session + * If client session, will receive final FIN from server, + * else, will receive all server traffic. + */ +static void +lwiperf_udp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *addr, u16_t port) +{ + lwiperf_state_udp_t *server = (lwiperf_state_udp_t *)arg; + lwiperf_state_udp_t *conn = NULL; + struct UDP_datagram *pkt; + int32_t datagramID; + u16_t tot_len = p->tot_len; + + LWIP_ASSERT("pcb mismatch", server->pcb == pcb); + LWIP_UNUSED_ARG(pcb); + + /* lookup client using remote addr */ + if (server->base.server) + conn = lwiperf_udp_search_client(server, addr, port); + else + conn = server; + + /* Read packet iperf data. */ + pkt = (struct UDP_datagram *)p->payload; + datagramID = ntohl(pkt->id); + + if (conn && !conn->base.server) { + /* received server reports for client instances -> close it. */ + if (!conn->report_count) { + lwiperf_udp_report_t *hdr; + pkt = (struct UDP_datagram *)p->payload; + pkt->id = htonl(datagramID); + hdr = (lwiperf_udp_report_t *)(pkt + 1); + if (hdr->flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST)) { + /* Adjust bytes transferred with the one from server report */ + LWIP_PLATFORM_DIAG(("Received report from server (0x%x).\n", lwip_ntohl(hdr->flags))); + /*LWIP_PLATFORM_DIAG(("Stop %ld.%03ld sec, ", ntohl(hdr->stop_sec), ntohl(hdr->stop_usec)/1000)); + LWIP_PLATFORM_DIAG(("Total %ldKB, ", ntohl(hdr->total_len2)/1024));*/ + LWIP_PLATFORM_DIAG(("Jitter %ld.%03ld, ", ntohl(hdr->jitter1), ntohl(hdr->jitter2))); + LWIP_PLATFORM_DIAG(("Lost %ld/%ld datagrams, OoO %ld\n", + ntohl(hdr->error_cnt), ntohl(hdr->datagrams), ntohl(hdr->outorder_cnt))); + conn->bytes_transferred = (((u64_t)ntohl(hdr->total_len1)) << 32) + ntohl(hdr->total_len2); + } + if (hdr->flags & PP_HTONL(LWIPERF_FLAGS_EXTEND)) { + LWIP_PLATFORM_DIAG(("Extended report unsupported yet.\n")); + } + } + conn->report_count++; + } + else if (datagramID >= 0) { + struct timespec ts, dt; + uint32_t transit; + clock_gettime(CLOCK_MONOTONIC, &ts); + if (!conn || !conn->have_settings_buf) { + /* allocate struct for a new client */ + if (!conn) { + conn = lwiperf_udp_new_client(server); + if (!conn) { + pbuf_free(p); + return; + } + } + /* wait for 24-byte header */ + if (p->tot_len < (sizeof(struct UDP_datagram) + sizeof(lwiperf_settings_t))) { + lwiperf_udp_close(conn, LWIPERF_UDP_ABORTED_LOCAL_DATAERROR); + pbuf_free(p); + return; + } + /* copy settings */ + if (pbuf_copy_partial(p, &conn->settings, sizeof(lwiperf_settings_t), sizeof(struct UDP_datagram)) + != sizeof(lwiperf_settings_t)) { + lwiperf_udp_close(conn, LWIPERF_UDP_ABORTED_LOCAL); + pbuf_free(p); + return; + } + conn->have_settings_buf = 1; + LWIP_PLATFORM_DIAG(("New UDP client (settings flags 0x%x)\n", lwip_ntohl(conn->settings.base.flags))); + /* Save client data. */ + ip_addr_copy(conn->remote_addr, *addr); + conn->remote_port = port; + conn->time_started = sys_now(); + /* Reset tradeoff & dualtest setting if temporary server */ + if (server->base.server & 0x80) { + conn->settings.base.flags &= ~PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST|LWIPERF_FLAGS_ANSWER_NOW); + } + /* check if dualtest requested */ + if (conn->settings.base.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST)) { + if (conn->settings.base.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_NOW)) { + /* client requested parallel transmission test */ + LWIP_PLATFORM_DIAG(("client requested parallel transmission test\n")); + err_t err2 = lwiperf_udp_tx_start(conn); + if (err2 != ERR_OK) { + lwiperf_udp_close(conn, LWIPERF_UDP_ABORTED_LOCAL_TXERROR); + pbuf_free(p); + return; + } + } + } + } + /* Update stats. */ + conn->udp_lastpkt.tv_sec = ntohl(pkt->tv_sec); + conn->udp_lastpkt.tv_nsec = ntohl(pkt->tv_usec) * 1000; + if (conn->udp_seq != (uint32_t) datagramID) { + conn->udp_rx_lost += (uint32_t) datagramID - conn->udp_seq; + conn->udp_seq = datagramID + 1; + conn->udp_rx_outorder += 1; + } else { + conn->bytes_transferred += tot_len; + conn->udp_rx_total_pkt += 1; + conn->udp_seq += 1; + } + /* Jitter calculation + * from RFC 1889, Real Time Protocol (RTP) + * J = J + ( | D(i-1,i) | - J ) / Compute jitter + */ + diff_ts (&conn->udp_lastpkt, &ts, &dt); + transit = (uint32_t)((dt.tv_sec * 1000000) + (dt.tv_nsec / 1000)); + if (conn->udp_last_transit) { + long deltaTransit = (long)(transit - conn->udp_last_transit); + if ( deltaTransit < 0.0 ) { + deltaTransit = -deltaTransit; + } + conn->jitter += (deltaTransit - conn->jitter) >> 4; + } + else { + conn->udp_last_transit = transit; + } + } else { + if (conn && conn->have_settings_buf && !conn->report_count) { + lwiperf_udp_report_t *hdr; + u32_t now, duration_ms; + now = sys_now(); + duration_ms = now - conn->time_started; + /* Copy packet and send report back. */ + struct pbuf *q = pbuf_clone(PBUF_TRANSPORT, PBUF_POOL, p); + LWIP_ASSERT("can't clone buffer", q != NULL); + pkt = (struct UDP_datagram *)q->payload; + pkt->id = htonl(datagramID); + hdr = (lwiperf_udp_report_t *)(pkt + 1); + hdr->flags = PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST); + hdr->total_len1 = htonl((u32_t)(conn->bytes_transferred >> 32)); + hdr->total_len2 = htonl((u32_t)(conn->bytes_transferred & 0xFFFFFFFF)); + hdr->stop_sec = htonl(duration_ms / 1000); + hdr->stop_usec = htonl((duration_ms % 1000) * 1000); + hdr->error_cnt = htonl(conn->udp_rx_lost); + hdr->outorder_cnt = htonl(conn->udp_rx_outorder); + hdr->datagrams = htonl(conn->udp_rx_total_pkt); + hdr->jitter1 = htonl(conn->jitter / 1000000); + hdr->jitter2 = htonl((conn->jitter % 1000000) / 1000); + /* Adjust bytes transferred with the one from server report */ + LWIP_PLATFORM_DIAG(("Sending report back to client (0x%x).\n", hdr->flags)); + /*LWIP_PLATFORM_DIAG(("Stop %ld.%03ld sec, ", ntohl(hdr->stop_sec), ntohl(hdr->stop_usec)/1000)); + LWIP_PLATFORM_DIAG(("Total %ldKB, ", ntohl(hdr->total_len2)/1024));*/ + LWIP_PLATFORM_DIAG(("Jitter %ld.%03ld, ", ntohl(hdr->jitter1), ntohl(hdr->jitter2))); + LWIP_PLATFORM_DIAG(("Lost %ld/%ld datagrams, OoO %ld\n", + ntohl(hdr->error_cnt), ntohl(hdr->datagrams), ntohl(hdr->outorder_cnt))); + /* Store report buffer in conn structure */ + conn->reported = q; + /* Send report to client. */ + lwiperf_udp_send_report(conn); + } + } + pbuf_free(p); +} + +/** + * @ingroup iperf + * Start an UDP iperf server on a specific IP address and port and listen for + * incoming datagrams from iperf clients. + * + * @returns a connection handle that can be used to abort the server + * by calling @ref lwiperf_abort() + */ +void * +lwiperf_start_udp_server(const ip_addr_t *local_addr, u16_t local_port, + lwiperf_report_fn report_fn, void *report_arg) +{ + lwiperf_state_udp_t *s; + err_t err; + + LWIP_ASSERT_CORE_LOCKED(); + + if (local_addr == NULL) + return NULL; + s = (lwiperf_state_udp_t *)LWIPERF_ALLOC(lwiperf_state_udp_t); + if (s == NULL) + return NULL; + do { + memset(s, 0, sizeof(lwiperf_state_udp_t)); + s->base.tcp = 0; + s->base.server = 1; + s->report_fn = report_fn; + s->report_arg = report_arg; + /* allocate udp pcb */ + s->pcb = udp_new(); + if (s->pcb == NULL) + break; + /* bind to locat port/address */ + err = udp_bind(s->pcb, local_addr, local_port); + if (err != ERR_OK) + break; + /* join group if multicast address */ + if (ip_addr_ismulticast(local_addr)) { + if (IP_IS_V6 (local_addr)) { +#if LWIP_IPV6_MLD + err = mld6_joingroup (IP6_ADDR_ANY6, ip_2_ip6 (local_addr)); +#endif + } + else { +#if LWIP_IGMP + err = igmp_joingroup (IP4_ADDR_ANY4, ip_2_ip4 (local_addr)); +#endif + } + if (err != ERR_OK) + break; + } + /* start receiving datagrams */ + udp_recv(s->pcb, lwiperf_udp_recv, s); + /* finally, add to list */ + lwiperf_list_add(&s->base); + return s; + } while (0); + /* error occurs, cleanup */ + if (s->pcb) + udp_remove(s->pcb); + LWIPERF_FREE(lwiperf_state_udp_t, s); + return NULL; +} + +/** + * @ingroup iperf + * Start a UDP iperf client connected to a specific IP address and port. + * + * @returns a connection handle that can be used to abort the client + * by calling @ref lwiperf_abort() + */ +void * +lwiperf_start_udp_client(const ip_addr_t *local_addr, u16_t local_port, + const ip_addr_t *remote_addr, u16_t remote_port, + enum lwiperf_client_type type, int amount, s32_t rate, u8_t tos, + lwiperf_report_fn report_fn, void *report_arg) +{ + err_t err; + lwiperf_state_udp_t *c; + lwiperf_state_udp_t *s = NULL; + u32_t buf_len, flags; + u16_t sport = 0; + + switch (type) { + case LWIPERF_CLIENT: + /* Unidirectional tx only test */ + flags = 0; + break; + case LWIPERF_DUAL: + /* Do a bidirectional test simultaneously */ + flags = htonl(LWIPERF_FLAGS_ANSWER_TEST | LWIPERF_FLAGS_ANSWER_NOW); + break; + case LWIPERF_TRADEOFF: + /* Do a bidirectional test individually */ + flags = htonl(LWIPERF_FLAGS_ANSWER_TEST); + break; + default: + /* invalid argument */ + return NULL; + } + if (type != LWIPERF_CLIENT) { + /* tradeoff or dualtest requested. need to start a new server on another port */ + s = lwiperf_start_udp_server( + local_addr ? local_addr : IP4_ADDR_ANY, local_port, + report_fn, report_arg); + if (s) { + s->base.server |= 0x80; /* put a temporary server mark */ + sport = s->pcb->local_port; /* retrieve this server port */ + LWIP_PLATFORM_DIAG(("Dualtest port: %u\n", sport)); + } + else { + LWIP_PLATFORM_DIAG(("Dualtest disabled!\n")); + } + } + /* Create client */ + c = lwiperf_udp_tx_new(NULL); + if (c == NULL) + return NULL; + c->report_fn = report_fn; + c->report_arg = report_arg; + /* save remote */ + ip_addr_copy(c->remote_addr, *remote_addr); + c->remote_port = remote_port; + /* save client settings, to be copied in each packets */ + c->have_settings_buf = 1; + c->settings.base.amount = lwip_htonl((uint32_t)amount); + buf_len = (u32_t)(IP_IS_V6(remote_addr) ? 1450 : 1470); + c->settings.base.buffer_len = lwip_htonl(buf_len); + if (rate != (1024 * 1024)) { /* 1Mb/s is the default if not specified. */ + c->settings.rate = lwip_htonl(rate); + c->settings.base.flags |= PP_HTONL(LWIPERF_FLAGS_EXTEND); + c->settings.base.win_band = lwip_htonl(rate); + } + if (sport) { + /* tradeoff or dualtest requested need to put server port in settings */ + c->settings.base.flags |= flags; + c->settings.base.remote_port = lwip_htonl(sport); + } + lwiperf_udp_set_client_rate(c, rate, buf_len); + /* set tos if specified */ + if (tos) + c->pcb->tos = tos; + do { + if (local_addr) { + /* bind to local address if specified */ + err = udp_bind(c->pcb, local_addr, 0); + if (err != ERR_OK) + break; + /* join multicast group? */ + if (ip_addr_ismulticast(local_addr)) { + if (IP_IS_V6 (local_addr)) { +#if LWIP_IPV6_MLD + err = mld6_joingroup (IP6_ADDR_ANY6, ip_2_ip6 (local_addr)); +#endif + } + else { +#if LWIP_IGMP + err = igmp_joingroup (IP4_ADDR_ANY4, ip_2_ip4 (local_addr)); +#endif + } + if (err != ERR_OK) + break; + } + } + /* set pseudo-connect parameters */ + err = udp_connect(c->pcb, remote_addr, remote_port); + if (err != ERR_OK) + break; + /* and add to instance list */ + lwiperf_list_add(&c->base); + if (s != NULL) + s->base.related_master_state = &c->base; + /* start sending immediately */ + lwiperf_udp_client_send_more(c); + return c; + } while (0); + /* error occurs, cleanup */ + if (c->pcb) + udp_remove(c->pcb); + LWIPERF_FREE(lwiperf_state_udp_t, c); + return NULL; +} + +/** + * @ingroup iperf + * Poll all running UDP client to send more according to specified BW. + */ +void +lwiperf_poll_udp_client(void) +{ + lwiperf_state_base_t *c; + for (c = lwiperf_all_connections; c != NULL; c = c->next) { + if (!c->server && !c->tcp) + lwiperf_udp_client_send_more((lwiperf_state_udp_t *)c); + } +} + +/** + * @ingroup iperf + * Abort an iperf session (handle returned by `lwiperf_start_(tcp|udp)_server`) + */ +void +lwiperf_abort(void *lwiperf_session) +{ + lwiperf_state_base_t *i, *dealloc, *last = NULL; + + LWIP_ASSERT_CORE_LOCKED(); + + for (i = lwiperf_all_connections; i != NULL; ) { + if ((i == lwiperf_session) || (i->related_master_state == lwiperf_session)) { + dealloc = i; + i = i->next; + if (last != NULL) { + last->next = i; + } + if (dealloc->tcp) { + lwiperf_tcp_close((lwiperf_state_tcp_t *)dealloc, LWIPERF_TCP_ABORTED_LOCAL); + } else { + lwiperf_udp_close((lwiperf_state_udp_t *)dealloc, LWIPERF_UDP_ABORTED_LOCAL); + } + } else { + last = i; + i = i->next; + } + } +} + +#endif /* LWIP_CALLBACK_API && LWIP_TCP && LWIP_UDP */ diff --git a/middleware/lwip/src/apps/mdns/mdns.c b/middleware/lwip/src/apps/mdns/mdns.c new file mode 100644 index 0000000..24504c3 --- /dev/null +++ b/middleware/lwip/src/apps/mdns/mdns.c @@ -0,0 +1,2849 @@ +/** + * @file + * MDNS responder implementation + * + * @defgroup mdns MDNS + * @ingroup apps + * + * RFC 6762 - Multicast DNS
+ * RFC 6763 - DNS-Based Service Discovery + * + * You need to increase MEMP_NUM_SYS_TIMEOUT by one if you use MDNS! + * + * @verbinclude mdns.txt + * + * Things left to implement: + * ------------------------- + * + * - Sending goodbye messages (zero ttl) - shutdown, DHCP lease about to expire, DHCP turned off... + * - Sending negative responses NSEC + * - Fragmenting replies if required + * - Individual known answer detection for all local IPv6 addresses + * - Dynamic size of outgoing packet + */ + +/* + * Copyright (c) 2015 Verisure Innovation AB + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Author: Jasper Verschueren + * + */ + +#include "lwip/apps/mdns.h" +#include "lwip/apps/mdns_priv.h" +#include "lwip/apps/mdns_domain.h" +#include "lwip/apps/mdns_out.h" +#include "lwip/netif.h" +#include "lwip/udp.h" +#include "lwip/ip_addr.h" +#include "lwip/mem.h" +#include "lwip/memp.h" +#include "lwip/prot/dns.h" +#include "lwip/prot/iana.h" +#include "lwip/timeouts.h" +#include "lwip/sys.h" + +#include /* memset */ +#include /* snprintf */ + +#if LWIP_MDNS_RESPONDER + +#if (LWIP_IPV4 && !LWIP_IGMP) +#error "If you want to use MDNS with IPv4, you have to define LWIP_IGMP=1 in your lwipopts.h" +#endif +#if (LWIP_IPV6 && !LWIP_IPV6_MLD) +#error "If you want to use MDNS with IPv6, you have to define LWIP_IPV6_MLD=1 in your lwipopts.h" +#endif +#if (!LWIP_UDP) +#error "If you want to use MDNS, you have to define LWIP_UDP=1 in your lwipopts.h" +#endif +#ifndef LWIP_RAND +#error "If you want to use MDNS, you have to define LWIP_RAND=(random function) in your lwipopts.h" +#endif + +#if LWIP_IPV4 +#include "lwip/igmp.h" +/* IPv4 multicast group 224.0.0.251 */ +static const ip_addr_t v4group = DNS_MQUERY_IPV4_GROUP_INIT; +#endif + +#if LWIP_IPV6 +#include "lwip/mld6.h" +/* IPv6 multicast group FF02::FB */ +static const ip_addr_t v6group = DNS_MQUERY_IPV6_GROUP_INIT; +#endif + +#define MDNS_IP_TTL 255 + +#if LWIP_MDNS_SEARCH +static struct mdns_request mdns_requests[MDNS_MAX_REQUESTS]; +#endif + +static u8_t mdns_netif_client_id; +static struct udp_pcb *mdns_pcb; +#if MDNS_RESP_USENETIF_EXTCALLBACK +NETIF_DECLARE_EXT_CALLBACK(netif_callback) +#endif +static mdns_name_result_cb_t mdns_name_result_cb; + +#define NETIF_TO_HOST(netif) (struct mdns_host*)(netif_get_client_data(netif, mdns_netif_client_id)) + +/** Delayed response defines */ +#define MDNS_RESPONSE_DELAY_MAX 120 +#define MDNS_RESPONSE_DELAY_MIN 20 +#define MDNS_RESPONSE_DELAY (LWIP_RAND() %(MDNS_RESPONSE_DELAY_MAX - \ + MDNS_RESPONSE_DELAY_MIN) + MDNS_RESPONSE_DELAY_MIN) +/* Delayed response for truncated question defines */ +#define MDNS_RESPONSE_TC_DELAY_MAX 500 +#define MDNS_RESPONSE_TC_DELAY_MIN 400 +#define MDNS_RESPONSE_TC_DELAY_MS (LWIP_RAND() % (MDNS_RESPONSE_TC_DELAY_MAX - \ + MDNS_RESPONSE_TC_DELAY_MIN) + MDNS_RESPONSE_TC_DELAY_MIN) + +/** Probing & announcing defines */ +#define MDNS_PROBE_COUNT 3 +#ifdef LWIP_RAND +/* first probe timeout SHOULD be random 0-250 ms*/ +#define MDNS_INITIAL_PROBE_DELAY_MS (LWIP_RAND() % MDNS_PROBE_DELAY_MS) +#else +#define MDNS_INITIAL_PROBE_DELAY_MS MDNS_PROBE_DELAY_MS +#endif + +#define MDNS_PROBE_TIEBREAK_CONFLICT_DELAY_MS 1000 +#define MDNS_PROBE_TIEBREAK_MAX_ANSWERS 5 + +#define MDNS_LEXICOGRAPHICAL_EQUAL 0 +#define MDNS_LEXICOGRAPHICAL_EARLIER 1 +#define MDNS_LEXICOGRAPHICAL_LATER 2 + +/* Delay between successive announcements (RFC6762 section 8.3) + * -> increase by a factor 2 with every response sent. + */ +#define MDNS_ANNOUNCE_DELAY_MS 1000 +/* Minimum 2 announces, may send up to 8 (RFC6762 section 8.3) */ +#define MDNS_ANNOUNCE_COUNT 2 + +/** Information about received packet */ +struct mdns_packet { + /** Sender IP/port */ + ip_addr_t source_addr; + u16_t source_port; + /** If packet was received unicast */ + u16_t recv_unicast; + /** Packet data */ + struct pbuf *pbuf; + /** Current parsing offset in packet */ + u16_t parse_offset; + /** Identifier. Used in legacy queries */ + u16_t tx_id; + /** Number of questions in packet, + * read from packet header */ + u16_t questions; + /** Number of unparsed questions */ + u16_t questions_left; + /** Number of answers in packet */ + u16_t answers; + /** Number of unparsed answers */ + u16_t answers_left; + /** Number of authoritative answers in packet */ + u16_t authoritative; + /** Number of unparsed authoritative answers */ + u16_t authoritative_left; + /** Number of additional answers in packet */ + u16_t additional; + /** Number of unparsed additional answers */ + u16_t additional_left; + /** Chained list of known answer received after a truncated question */ + struct mdns_packet *next_answer; + /** Chained list of truncated question that are waiting */ + struct mdns_packet *next_tc_question; +}; + +/* list of received questions with TC flags set, waiting for known answers */ +static struct mdns_packet *pending_tc_questions; + +/* pool of received packets */ +LWIP_MEMPOOL_DECLARE(MDNS_PKTS, MDNS_MAX_STORED_PKTS, sizeof (struct mdns_packet), "Stored mDNS packets") + +struct mdns_question { + struct mdns_rr_info info; + /** unicast reply requested */ + u16_t unicast; +}; + +struct mdns_answer_list { + u16_t offset[MDNS_PROBE_TIEBREAK_MAX_ANSWERS]; + u16_t size; +}; + +static err_t mdns_parse_pkt_questions(struct netif *netif, + struct mdns_packet *pkt, + struct mdns_outmsg *reply); +static void mdns_define_probe_rrs_to_send(struct netif *netif, + struct mdns_outmsg *outmsg); +static void mdns_probe_and_announce(void* arg); +static void mdns_conflict_save_time(struct netif *netif); + +/** + * Construction to make mdns struct accessible from mdns_out.c + * TODO: + * can we add the mdns struct to the netif like we do for dhcp, autoip,...? + * Then this is not needed any more. + * + * @param netif The network interface + * @return mdns struct + */ +struct mdns_host* +netif_mdns_data(struct netif *netif) { + return NETIF_TO_HOST(netif); +} + +/** + * Construction to access the mdns udp pcb. + * + * @return udp_pcb struct of mdns + */ +struct udp_pcb* +get_mdns_pcb(void) +{ + return mdns_pcb; +} + +/** + * Check which replies we should send for a host/netif based on question + * @param netif The network interface that received the question + * @param rr Domain/type/class from a question + * @param reverse_v6_reply Bitmask of which IPv6 addresses to send reverse PTRs for + * if reply bit has REPLY_HOST_PTR_V6 set + * @return Bitmask of which replies to send + */ +static int +check_host(struct netif *netif, struct mdns_rr_info *rr, u8_t *reverse_v6_reply) +{ + err_t res; + int replies = 0; + struct mdns_domain mydomain; + + LWIP_UNUSED_ARG(reverse_v6_reply); /* if ipv6 is disabled */ + + if (rr->klass != DNS_RRCLASS_IN && rr->klass != DNS_RRCLASS_ANY) { + /* Invalid class */ + return replies; + } + + /* Handle PTR for our addresses */ + if (rr->type == DNS_RRTYPE_PTR || rr->type == DNS_RRTYPE_ANY) { +#if LWIP_IPV6 + int i; + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i))) { + res = mdns_build_reverse_v6_domain(&mydomain, netif_ip6_addr(netif, i)); + if (res == ERR_OK && mdns_domain_eq(&rr->domain, &mydomain)) { + replies |= REPLY_HOST_PTR_V6; + /* Mark which addresses where requested */ + if (reverse_v6_reply) { + *reverse_v6_reply |= (1 << i); + } + } + } + } +#endif +#if LWIP_IPV4 + if (!ip4_addr_isany_val(*netif_ip4_addr(netif))) { + res = mdns_build_reverse_v4_domain(&mydomain, netif_ip4_addr(netif)); + if (res == ERR_OK && mdns_domain_eq(&rr->domain, &mydomain)) { + replies |= REPLY_HOST_PTR_V4; + } + } +#endif + } + + res = mdns_build_host_domain(&mydomain, NETIF_TO_HOST(netif)); + /* Handle requests for our hostname */ + if (res == ERR_OK && mdns_domain_eq(&rr->domain, &mydomain)) { + /* TODO return NSEC if unsupported protocol requested */ +#if LWIP_IPV4 + if (!ip4_addr_isany_val(*netif_ip4_addr(netif)) + && (rr->type == DNS_RRTYPE_A || rr->type == DNS_RRTYPE_ANY)) { + replies |= REPLY_HOST_A; + } +#endif +#if LWIP_IPV6 + if (rr->type == DNS_RRTYPE_AAAA || rr->type == DNS_RRTYPE_ANY) { + replies |= REPLY_HOST_AAAA; + } +#endif + } + + return replies; +} + +/** + * Check which replies we should send for a service based on question + * @param service A registered MDNS service + * @param rr Domain/type/class from a question + * @return Bitmask of which replies to send + */ +static int +check_service(struct mdns_service *service, struct mdns_rr_info *rr) +{ + err_t res; + int replies = 0; + struct mdns_domain mydomain; + + if (rr->klass != DNS_RRCLASS_IN && rr->klass != DNS_RRCLASS_ANY) { + /* Invalid class */ + return 0; + } + + res = mdns_build_dnssd_domain(&mydomain); + if (res == ERR_OK && mdns_domain_eq(&rr->domain, &mydomain) && + (rr->type == DNS_RRTYPE_PTR || rr->type == DNS_RRTYPE_ANY)) { + /* Request for all service types */ + replies |= REPLY_SERVICE_TYPE_PTR; + } + + res = mdns_build_service_domain(&mydomain, service, 0); + if (res == ERR_OK && mdns_domain_eq(&rr->domain, &mydomain) && + (rr->type == DNS_RRTYPE_PTR || rr->type == DNS_RRTYPE_ANY)) { + /* Request for the instance of my service */ + replies |= REPLY_SERVICE_NAME_PTR; + } + + res = mdns_build_service_domain(&mydomain, service, 1); + if (res == ERR_OK && mdns_domain_eq(&rr->domain, &mydomain)) { + /* Request for info about my service */ + if (rr->type == DNS_RRTYPE_SRV || rr->type == DNS_RRTYPE_ANY) { + replies |= REPLY_SERVICE_SRV; + } + if (rr->type == DNS_RRTYPE_TXT || rr->type == DNS_RRTYPE_ANY) { + replies |= REPLY_SERVICE_TXT; + } + } + + return replies; +} + +#if LWIP_MDNS_SEARCH +/** + * Check if question belong to a specified request + * @param request A ongoing MDNS request + * @param rr Domain/type/class from an answer + * @return Bitmask of which matching replies + */ +static int +check_request(struct mdns_request *request, struct mdns_rr_info *rr) +{ + err_t res; + int replies = 0; + struct mdns_domain mydomain; + + if (rr->klass != DNS_RRCLASS_IN && rr->klass != DNS_RRCLASS_ANY) { + /* Invalid class */ + return 0; + } + + res = mdns_build_request_domain(&mydomain, request, 0); + if (res == ERR_OK && mdns_domain_eq(&rr->domain, &mydomain) && + (rr->type == DNS_RRTYPE_PTR || rr->type == DNS_RRTYPE_ANY)) { + /* Request for the instance of my service */ + replies |= REPLY_SERVICE_TYPE_PTR; + } + res = mdns_build_request_domain(&mydomain, request, 1); + if (res == ERR_OK && mdns_domain_eq(&rr->domain, &mydomain)) { + /* Request for info about my service */ + if (rr->type == DNS_RRTYPE_SRV || rr->type == DNS_RRTYPE_ANY) { + replies |= REPLY_SERVICE_SRV; + } + if (rr->type == DNS_RRTYPE_TXT || rr->type == DNS_RRTYPE_ANY) { + replies |= REPLY_SERVICE_TXT; + } + } + return replies; +} +#endif + +/** + * Helper function for mdns_read_question/mdns_read_answer + * Reads a domain, type and class from the packet + * @param pkt The MDNS packet to read from. The parse_offset field will be + * incremented to point to the next unparsed byte. + * @param info The struct to fill with domain, type and class + * @return ERR_OK on success, an err_t otherwise + */ +static err_t +mdns_read_rr_info(struct mdns_packet *pkt, struct mdns_rr_info *info) +{ + u16_t field16, copied; + pkt->parse_offset = mdns_readname(pkt->pbuf, pkt->parse_offset, &info->domain); + if (pkt->parse_offset == MDNS_READNAME_ERROR) { + return ERR_VAL; + } + + copied = pbuf_copy_partial(pkt->pbuf, &field16, sizeof(field16), pkt->parse_offset); + if (copied != sizeof(field16)) { + return ERR_VAL; + } + pkt->parse_offset += copied; + info->type = lwip_ntohs(field16); + + copied = pbuf_copy_partial(pkt->pbuf, &field16, sizeof(field16), pkt->parse_offset); + if (copied != sizeof(field16)) { + return ERR_VAL; + } + pkt->parse_offset += copied; + info->klass = lwip_ntohs(field16); + + return ERR_OK; +} + +/** + * Read a question from the packet. + * All questions have to be read before the answers. + * @param pkt The MDNS packet to read from. The questions_left field will be decremented + * and the parse_offset will be updated. + * @param question The struct to fill with question data + * @return ERR_OK on success, an err_t otherwise + */ +static err_t +mdns_read_question(struct mdns_packet *pkt, struct mdns_question *question) +{ + /* Safety check */ + if (pkt->pbuf->tot_len < pkt->parse_offset) { + return ERR_VAL; + } + + if (pkt->questions_left) { + err_t res; + pkt->questions_left--; + + memset(question, 0, sizeof(struct mdns_question)); + res = mdns_read_rr_info(pkt, &question->info); + if (res != ERR_OK) { + return res; + } + + /* Extract unicast flag from class field */ + question->unicast = question->info.klass & 0x8000; + question->info.klass &= 0x7FFF; + + return ERR_OK; + } + return ERR_VAL; +} + +/** + * Read an answer from the packet + * The variable length reply is not copied, its pbuf offset and length is stored instead. + * @param pkt The MDNS packet to read. The num_left field will be decremented and + * the parse_offset will be updated. + * @param answer The struct to fill with answer data + * @param num_left number of answers left -> answers, authoritative or additional + * @return ERR_OK on success, an err_t otherwise + */ +static err_t +mdns_read_answer(struct mdns_packet *pkt, struct mdns_answer *answer, u16_t *num_left) +{ + /* Read questions first */ + if (pkt->questions_left) { + return ERR_VAL; + } + + /* Safety check */ + if (pkt->pbuf->tot_len < pkt->parse_offset) { + return ERR_VAL; + } + + if (*num_left) { + u16_t copied, field16; + u32_t ttl; + err_t res; + (*num_left)--; + + memset(answer, 0, sizeof(struct mdns_answer)); + res = mdns_read_rr_info(pkt, &answer->info); + if (res != ERR_OK) { + return res; + } + + /* Extract cache_flush flag from class field */ + answer->cache_flush = answer->info.klass & 0x8000; + answer->info.klass &= 0x7FFF; + + copied = pbuf_copy_partial(pkt->pbuf, &ttl, sizeof(ttl), pkt->parse_offset); + if (copied != sizeof(ttl)) { + return ERR_VAL; + } + pkt->parse_offset += copied; + answer->ttl = lwip_ntohl(ttl); + + copied = pbuf_copy_partial(pkt->pbuf, &field16, sizeof(field16), pkt->parse_offset); + if (copied != sizeof(field16)) { + return ERR_VAL; + } + pkt->parse_offset += copied; + answer->rd_length = lwip_ntohs(field16); + + answer->rd_offset = pkt->parse_offset; + pkt->parse_offset += answer->rd_length; + + return ERR_OK; + } + return ERR_VAL; +} + +/** + * Send unsolicited answer containing all our known data + * @param netif The network interface to send on + * @param destination The target address to send to (usually multicast address) + */ +static void +mdns_announce(struct netif *netif, const ip_addr_t *destination) +{ + struct mdns_outmsg announce; + int i; + struct mdns_host *mdns = NETIF_TO_HOST(netif); + + memset(&announce, 0, sizeof(announce)); + announce.cache_flush = 1; +#if LWIP_IPV4 + if (!ip4_addr_isany_val(*netif_ip4_addr(netif))) { + announce.host_replies = REPLY_HOST_A | REPLY_HOST_PTR_V4; + } +#endif +#if LWIP_IPV6 + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i))) { + announce.host_replies |= REPLY_HOST_AAAA | REPLY_HOST_PTR_V6; + announce.host_reverse_v6_replies |= (1 << i); + } + } +#endif + + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + struct mdns_service *serv = mdns->services[i]; + if (serv) { + announce.serv_replies[i] = REPLY_SERVICE_TYPE_PTR | REPLY_SERVICE_NAME_PTR | + REPLY_SERVICE_SRV | REPLY_SERVICE_TXT; + } + } + + announce.dest_port = LWIP_IANA_PORT_MDNS; + SMEMCPY(&announce.dest_addr, destination, sizeof(announce.dest_addr)); + announce.flags = DNS_FLAG1_RESPONSE | DNS_FLAG1_AUTHORATIVE; + mdns_send_outpacket(&announce, netif); +} + +/** + * Perform lexicographical comparison to define the lexicographical order of the + * records. + * + * @param pkt_a first packet (needed for rr data) + * @param pkt_b second packet (needed for rr data) + * @param ans_a first rr + * @param ans_b second rr + * @param result pointer to save result in -> MDNS_LEXICOGRAPHICAL_EQUAL, + * MDNS_LEXICOGRAPHICAL_LATER or MDNS_LEXICOGRAPHICAL_EARLIER. + * @return err_t ERR_OK if result is good, ERR_VAL if domain decompression failed. + */ +static err_t +mdns_lexicographical_comparison(struct mdns_packet *pkt_a, struct mdns_packet *pkt_b, + struct mdns_answer *ans_a, struct mdns_answer *ans_b, + u8_t *result) +{ + int len, i; + u8_t a_rd, b_rd; + u16_t res; + struct mdns_domain domain_a, domain_b; + + /* Compare classes */ + if (ans_a->info.klass != ans_b->info.klass) { + if (ans_a->info.klass > ans_b->info.klass) { + *result = MDNS_LEXICOGRAPHICAL_LATER; + return ERR_OK; + } + else { + *result = MDNS_LEXICOGRAPHICAL_EARLIER; + return ERR_OK; + } + } + /* Compare types */ + if (ans_a->info.type != ans_b->info.type) { + if (ans_a->info.type > ans_b->info.type) { + *result = MDNS_LEXICOGRAPHICAL_LATER; + return ERR_OK; + } + else { + *result = MDNS_LEXICOGRAPHICAL_EARLIER; + return ERR_OK; + } + } + + /* Compare rr data section + * Name compression: + * We have 4 different RR types in our authoritative section (if IPv4 and IPv6 is enabled): A, + * AAAA, SRV and TXT. Only one of the 4 can be subject to name compression in the rdata, the SRV + * record. As stated in the RFC6762 section 8.2: the names must be uncompressed before comparison. + * We only need to take the SRV record into account. It's the only one that in a comparison with + * compressed data could lead to rdata comparison. Others will already stop after the type + * comparison. So if we get passed the class and type comparison we need to check if the + * comparison contains an SRV record. If so, we need a different comparison method. + */ + + /* The answers do not contain an SRV record */ + if (ans_a->info.type != DNS_RRTYPE_SRV && ans_b->info.type != DNS_RRTYPE_SRV) { + len = LWIP_MIN(ans_a->rd_length, ans_b->rd_length); + for (i = 0; i < len; i++) { + a_rd = pbuf_get_at(pkt_a->pbuf, (u16_t)(ans_a->rd_offset + i)); + b_rd = pbuf_get_at(pkt_b->pbuf, (u16_t)(ans_b->rd_offset + i)); + if (a_rd != b_rd) { + if (a_rd > b_rd) { + *result = MDNS_LEXICOGRAPHICAL_LATER; + return ERR_OK; + } + else { + *result = MDNS_LEXICOGRAPHICAL_EARLIER; + return ERR_OK; + } + } + } + /* If the overlapping data is the same, compare the length */ + if (ans_a->rd_length != ans_b->rd_length) { + if (ans_a->rd_length > ans_b->rd_length) { + *result = MDNS_LEXICOGRAPHICAL_LATER; + return ERR_OK; + } + else { + *result = MDNS_LEXICOGRAPHICAL_EARLIER; + return ERR_OK; + } + } + } + /* Because the types are guaranteed equal here, we know they are both SRV RRs */ + else { + /* We will first compare the priority, weight and port */ + for (i = 0; i < 6; i++) { + a_rd = pbuf_get_at(pkt_a->pbuf, (u16_t)(ans_a->rd_offset + i)); + b_rd = pbuf_get_at(pkt_b->pbuf, (u16_t)(ans_b->rd_offset + i)); + if (a_rd != b_rd) { + if (a_rd > b_rd) { + *result = MDNS_LEXICOGRAPHICAL_LATER; + return ERR_OK; + } + else { + *result = MDNS_LEXICOGRAPHICAL_EARLIER; + return ERR_OK; + } + } + } + /* Decompress names if compressed and save in domain_a or domain_b */ + res = mdns_readname(pkt_a->pbuf, ans_a->rd_offset + 6, &domain_a); + if (res == MDNS_READNAME_ERROR) { + return ERR_VAL; + } + res = mdns_readname(pkt_b->pbuf, ans_b->rd_offset + 6, &domain_b); + if (res == MDNS_READNAME_ERROR) { + return ERR_VAL; + } + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: domain a: len = %d, name = ", domain_a.name[0])); + mdns_domain_debug_print(&domain_a); + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: domain b: len = %d, name = ", domain_b.name[0])); + mdns_domain_debug_print(&domain_b); + /* Compare names pairwise */ + len = LWIP_MIN(domain_a.length, domain_b.length); + for (i = 0; i < len; i++) { + if (domain_a.name[i] != domain_b.name[i]) { + if (domain_a.name[i] > domain_b.name[i]) { + *result = MDNS_LEXICOGRAPHICAL_LATER; + return ERR_OK; + } + else { + *result = MDNS_LEXICOGRAPHICAL_EARLIER; + return ERR_OK; + } + } + } + /* If the overlapping data is the same, compare the length */ + if (domain_a.length != domain_b.length) { + if (domain_a.length > domain_b.length) { + *result = MDNS_LEXICOGRAPHICAL_LATER; + return ERR_OK; + } + else { + *result = MDNS_LEXICOGRAPHICAL_EARLIER; + return ERR_OK; + } + } + } + /* They are exactly the same */ + *result = MDNS_LEXICOGRAPHICAL_EQUAL; + return ERR_OK; +} + +/** + * Clear authoritative answer list + * + * @param a_list answer list to clear + */ +static void +mdns_init_answer_list(struct mdns_answer_list *a_list) +{ + int i; + a_list->size = 0; + for(i = 0; i < MDNS_PROBE_TIEBREAK_MAX_ANSWERS; i++) { + a_list->offset[i] = 0; + } +} + +/** + * Pushes the offset of the answer on a lexicographically later sorted list. + * We use a simple insertion sort because most of the time we are only sorting + * two items. The answers are sorted from the smallest to the largest. + * + * @param a_list Answer list to which to add the answer + * @param pkt Packet where answer originated + * @param new_offset Offset of the new answer in the packet + * @param new_answer The new answer + * @return err_t ERR_MEM if list is full + */ +static err_t +mdns_push_answer_to_sorted_list(struct mdns_answer_list *a_list, + struct mdns_packet *pkt, + u16_t new_offset, + struct mdns_answer *new_answer) +{ + int i; + struct mdns_answer a; + int pos = a_list->size; + err_t res = ERR_OK; + u8_t result; + u16_t num_left = pkt->authoritative; + u16_t parse_offset = pkt->parse_offset; + + /* Check size */ + if ((a_list->size + 1) >= MDNS_PROBE_TIEBREAK_MAX_ANSWERS) { + return ERR_MEM; + } + /* Search location and open a location */ + for (i = 0; i < a_list->size; i++) { + /* Read answers already in the list from pkt */ + pkt->parse_offset = a_list->offset[i]; + res = mdns_read_answer(pkt, &a, &num_left); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse answer, skipping probe packet\n")); + return res; + } + /* Compare them with the new answer to find it's place */ + res = mdns_lexicographical_comparison(pkt, pkt, &a, new_answer, &result); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to compare answers, skipping probe packet\n")); + return res; + } + if (result == MDNS_LEXICOGRAPHICAL_LATER) { + int j; + pos = i; + for (j = (a_list->size + 1); j>i; j--) { + a_list->offset[j] = a_list->offset[j-1]; + } + break; + } + } + /* Insert new value */ + a_list->offset[pos] = new_offset; + a_list->size++; + /* Reset parse offset for further evaluation */ + pkt->parse_offset = parse_offset; + return res; +} + +/** + * Check if the given answer answers the give question + * + * @param q query to find answer for + * @param a answer to given query + * @return 1 it a answers q, 0 if not + */ +static u8_t +mdns_is_answer_to_question(struct mdns_question *q, struct mdns_answer *a) +{ + if (q->info.type == DNS_RRTYPE_ANY || q->info.type == a->info.type) { + /* The types match or question type is any */ + if (mdns_domain_eq(&q->info.domain, &a->info.domain)) { + return 1; + } + } + return 0; +} + +/** + * Converts the output packet to the input packet format for probe tiebreaking + * + * @param inpkt destination packet for conversion + * @param outpkt source packet for conversion + */ +static void +mdns_convert_out_to_in_pkt(struct mdns_packet *inpkt, struct mdns_outpacket *outpkt) +{ + inpkt->pbuf = outpkt->pbuf; + inpkt->parse_offset = SIZEOF_DNS_HDR; + + inpkt->questions = inpkt->questions_left = outpkt->questions; + inpkt->answers = inpkt->answers_left = outpkt->answers; + inpkt->authoritative = inpkt->authoritative_left = outpkt->authoritative; + inpkt->additional = inpkt->additional_left = outpkt->additional; +} + +/** + * Debug print to print the answer part that is lexicographically compared + * + * @param pkt Packet where answer originated + * @param a The answer to print + */ +static void +mdns_debug_print_answer(struct mdns_packet *pkt, struct mdns_answer *a) +{ +#ifdef LWIP_DEBUG + /* Arbitrarily chose 200 -> don't want to see more then that. It's only + * for debug so not that important. */ + char string[200]; + int i; + int pos; + + pos = snprintf(string, sizeof(string), "Type = %2d, class = %1d, rdata = ", a->info.type, a->info.klass); + for (i = 0; ((i < a->rd_length) && ((pos + 4*i) < 195)) ; i++) { + snprintf(&string[pos + 4*i], 5, "%3d ", (u8_t)pbuf_get_at(pkt->pbuf, (u16_t)(a->rd_offset + i))); + } + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: %s\n", string)); +#else + LWIP_UNUSED_ARG(pkt); + LWIP_UNUSED_ARG(a); +#endif +} + +/** + * Perform probe tiebreaking according to RFC6762 section 8.2 + * + * @param netif network interface of incoming packet + * @param pkt incoming packet + */ +static void +mdns_handle_probe_tiebreaking(struct netif *netif, struct mdns_packet *pkt) +{ + struct mdns_question pkt_q, my_q, q_dummy; + struct mdns_answer pkt_a, my_a; + struct mdns_outmsg myprobe_msg; + struct mdns_outpacket myprobe_outpkt; + struct mdns_packet myprobe_inpkt; + struct mdns_answer_list pkt_a_list, my_a_list; + u16_t save_parse_offset; + u16_t pkt_parse_offset, myprobe_parse_offset, myprobe_questions_left; + err_t res; + u8_t match, result; + int min, i; + + /* Generate probe packet to perform comparison. + * This is a lot of calculation at this stage without any pre calculation + * needed. It should be evaluated if this is the best approach. + */ + mdns_define_probe_rrs_to_send(netif, &myprobe_msg); + memset(&myprobe_outpkt, 0, sizeof(myprobe_outpkt)); + memset(&myprobe_inpkt, 0, sizeof(myprobe_inpkt)); + res = mdns_create_outpacket(netif, &myprobe_msg, &myprobe_outpkt); + if (res != ERR_OK) { + goto cleanup; + } + mdns_convert_out_to_in_pkt(&myprobe_inpkt, &myprobe_outpkt); + + /* Loop over all our probes to search for matches */ + while (myprobe_inpkt.questions_left) { + /* Read one of our probe questions to check if pkt contains same question */ + res = mdns_read_question(&myprobe_inpkt, &my_q); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse question, skipping probe packet\n")); + goto cleanup; + } + /* Remember parse offsets so we can restart the search for the next question */ + pkt_parse_offset = pkt->parse_offset; + myprobe_parse_offset = myprobe_inpkt.parse_offset; + /* Remember questions left of our probe packet */ + myprobe_questions_left = myprobe_inpkt.questions_left; + /* Reset match flag */ + match = 0; + /* Search for a matching probe in the incoming packet */ + while (pkt->questions_left) { + /* Read probe questions one by one */ + res = mdns_read_question(pkt, &pkt_q); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse question, skipping probe packet\n")); + goto cleanup; + } + /* Stop evaluating if the class is not supported */ + if (pkt_q.info.klass != DNS_RRCLASS_IN && pkt_q.info.klass != DNS_RRCLASS_ANY) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: question class not supported, skipping probe packet\n")); + goto cleanup; + } + /* We probe for type any, so we do not have to compare types */ + /* Compare if we are probing for the same domain */ + if (mdns_domain_eq(&pkt_q.info.domain, &my_q.info.domain)) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: We are probing for the same rr\n")); + match = 1; + break; + } + } + /* When matched start evaluating the authoritative section */ + if (match) { + /* Ignore all following questions to be able to get to the authoritative answers */ + while (pkt->questions_left) { + res = mdns_read_question(pkt, &q_dummy); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse question, skipping probe packet\n")); + goto cleanup; + } + } + while (myprobe_inpkt.questions_left) { + res = mdns_read_question(&myprobe_inpkt, &q_dummy); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse question, skipping probe packet\n")); + goto cleanup; + } + } + + /* Extract and sort our authoritative answers that answer our question */ + mdns_init_answer_list(&my_a_list); + while(myprobe_inpkt.authoritative_left) { + save_parse_offset = myprobe_inpkt.parse_offset; + res = mdns_read_answer(&myprobe_inpkt, &my_a, &myprobe_inpkt.authoritative_left); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse answer, skipping probe packet\n")); + goto cleanup; + } + if (mdns_is_answer_to_question(&my_q, &my_a)) { + /* Add to list */ + res = mdns_push_answer_to_sorted_list(&my_a_list, &myprobe_inpkt, save_parse_offset, &my_a); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to add answer, skipping probe packet\n")); + goto cleanup; + } + } + } + /* Extract and sort the packets authoritative answers that answer the + question */ + mdns_init_answer_list(&pkt_a_list); + while(pkt->authoritative_left) { + save_parse_offset = pkt->parse_offset; + res = mdns_read_answer(pkt, &pkt_a, &pkt->authoritative_left); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse answer, skipping probe packet\n")); + goto cleanup; + } + if (mdns_is_answer_to_question(&my_q, &pkt_a)) { + /* Add to list */ + res = mdns_push_answer_to_sorted_list(&pkt_a_list, pkt, save_parse_offset, &pkt_a); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to add answer, skipping probe packet\n")); + goto cleanup; + } + } + } + + /* Reinitiate authoritative left */ + myprobe_inpkt.authoritative_left = myprobe_inpkt.authoritative; + pkt->authoritative_left = pkt->authoritative; + + /* Compare pairwise. + * - lexicographically later? -> we win, ignore the packet. + * - lexicographically earlier? -> we loose, wait one second and retry. + * - lexicographically equal? -> no conflict, check other probes. + */ + min = LWIP_MIN(my_a_list.size, pkt_a_list.size); + for (i = 0; i < min; i++) { + /* Get answer of our own list */ + myprobe_inpkt.parse_offset = my_a_list.offset[i]; + res = mdns_read_answer(&myprobe_inpkt, &my_a, &myprobe_inpkt.authoritative_left); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse answer, skipping probe packet\n")); + goto cleanup; + } + /* Get answer of the packets list */ + pkt->parse_offset = pkt_a_list.offset[i]; + res = mdns_read_answer(pkt, &pkt_a, &pkt->authoritative_left); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse answer, skipping probe packet\n")); + goto cleanup; + } + /* Print both answers for debugging */ + mdns_debug_print_answer(pkt, &pkt_a); + mdns_debug_print_answer(&myprobe_inpkt, &my_a); + /* Define the winner */ + res = mdns_lexicographical_comparison(&myprobe_inpkt, pkt, &my_a, &pkt_a, &result); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to compare answers, skipping probe packet\n")); + goto cleanup; + } + if (result == MDNS_LEXICOGRAPHICAL_LATER) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: we win, we are lexicographically later\n")); + goto cleanup; + } + else if (result == MDNS_LEXICOGRAPHICAL_EARLIER) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: we loose, we are lexicographically earlier. 1s timeout started\n")); + /* Increase the number of conflicts occurred */ + mdns_conflict_save_time(netif); + /* then restart with 1s delay */ + mdns_resp_restart_delay(netif, MDNS_PROBE_TIEBREAK_CONFLICT_DELAY_MS); + goto cleanup; + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: lexicographically equal, so no conclusion\n")); + } + } + /* All compared RR were equal, otherwise we would not be here + * -> check if one of both have more answers to the question */ + if (my_a_list.size != pkt_a_list.size) { + if (my_a_list.size > pkt_a_list.size) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: we win, we have more records answering the probe\n")); + goto cleanup; + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: we loose, we have less records. 1s timeout started\n")); + /* Increase the number of conflicts occurred */ + mdns_conflict_save_time(netif); + /* then restart with 1s delay */ + mdns_resp_restart_delay(netif, MDNS_PROBE_TIEBREAK_CONFLICT_DELAY_MS); + goto cleanup; + } + } + else { + /* There is no conflict on this probe, both devices have the same data + * in the authoritative section. We should still check the other probes + * for conflicts. */ + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: no conflict, all records answering the probe are equal\n")); + } + } + /* Evaluate other probes if any. */ + /* Reinitiate parse offsets */ + pkt->parse_offset = pkt_parse_offset; + myprobe_inpkt.parse_offset = myprobe_parse_offset; + /* Reinitiate questions_left and authoritative_left */ + pkt->questions_left = pkt->questions; + pkt->authoritative_left = pkt->authoritative; + myprobe_inpkt.questions_left = myprobe_questions_left; + myprobe_inpkt.authoritative_left = myprobe_inpkt.authoritative; + } + +cleanup: + if (myprobe_inpkt.pbuf != NULL) { + pbuf_free(myprobe_inpkt.pbuf); + } +} + +/** + * Check the incoming packet and parse all questions + * + * @param netif network interface of incoming packet + * @param pkt incoming packet + * @param reply outgoing message + * @return err_t + */ +static err_t +mdns_parse_pkt_questions(struct netif *netif, struct mdns_packet *pkt, + struct mdns_outmsg *reply) +{ + struct mdns_host *mdns = NETIF_TO_HOST(netif); + struct mdns_service *service; + int i; + err_t res; + + while (pkt->questions_left) { + struct mdns_question q; + + res = mdns_read_question(pkt, &q); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse question, skipping query packet\n")); + return res; + } + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Query for domain ")); + mdns_domain_debug_print(&q.info.domain); + LWIP_DEBUGF(MDNS_DEBUG, (" type %d class %d\n", q.info.type, q.info.klass)); + + if (q.unicast) { + /* Reply unicast if it is requested in the question */ + reply->unicast_reply_requested = 1; + } + + reply->host_replies |= check_host(netif, &q.info, &reply->host_reverse_v6_replies); + + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + service = mdns->services[i]; + if (!service) { + continue; + } + reply->serv_replies[i] |= check_service(service, &q.info); + } + } + + return ERR_OK; +} + +/** + * Check the incoming packet and parse all (known) answers + * + * @param netif network interface of incoming packet + * @param pkt incoming packet + * @param reply outgoing message + * @return err_t + */ +static err_t +mdns_parse_pkt_known_answers(struct netif *netif, struct mdns_packet *pkt, + struct mdns_outmsg *reply) +{ + struct mdns_host *mdns = NETIF_TO_HOST(netif); + struct mdns_service *service; + int i; + err_t res; + + while (pkt->answers_left) { + struct mdns_answer ans; + u8_t rev_v6; + int match; + u32_t rr_ttl = MDNS_TTL_120; + + res = mdns_read_answer(pkt, &ans, &pkt->answers_left); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse answer, skipping query packet\n")); + return res; + } + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Known answer for domain ")); + mdns_domain_debug_print(&ans.info.domain); + LWIP_DEBUGF(MDNS_DEBUG, (" type %d class %d\n", ans.info.type, ans.info.klass)); + + + if (ans.info.type == DNS_RRTYPE_ANY || ans.info.klass == DNS_RRCLASS_ANY) { + /* Skip known answers for ANY type & class */ + continue; + } + + rev_v6 = 0; + match = reply->host_replies & check_host(netif, &ans.info, &rev_v6); + if (match && (ans.ttl > (rr_ttl / 2))) { + /* The RR in the known answer matches an RR we are planning to send, + * and the TTL is less than half gone. + * If the payload matches we should not send that answer. + */ + if (ans.info.type == DNS_RRTYPE_PTR) { + /* Read domain and compare */ + struct mdns_domain known_ans, my_ans; + u16_t len; + len = mdns_readname(pkt->pbuf, ans.rd_offset, &known_ans); + res = mdns_build_host_domain(&my_ans, mdns); + if (len != MDNS_READNAME_ERROR && res == ERR_OK && mdns_domain_eq(&known_ans, &my_ans)) { +#if LWIP_IPV4 + if (match & REPLY_HOST_PTR_V4) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Skipping known answer: v4 PTR\n")); + reply->host_replies &= ~REPLY_HOST_PTR_V4; + } +#endif +#if LWIP_IPV6 + if (match & REPLY_HOST_PTR_V6) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Skipping known answer: v6 PTR\n")); + reply->host_reverse_v6_replies &= ~rev_v6; + if (reply->host_reverse_v6_replies == 0) { + reply->host_replies &= ~REPLY_HOST_PTR_V6; + } + } +#endif + } + } else if (match & REPLY_HOST_A) { +#if LWIP_IPV4 + if (ans.rd_length == sizeof(ip4_addr_t) && + pbuf_memcmp(pkt->pbuf, ans.rd_offset, netif_ip4_addr(netif), ans.rd_length) == 0) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Skipping known answer: A\n")); + reply->host_replies &= ~REPLY_HOST_A; + } +#endif + } else if (match & REPLY_HOST_AAAA) { +#if LWIP_IPV6 + if (ans.rd_length == sizeof(ip6_addr_p_t) && + /* TODO this clears all AAAA responses if first addr is set as known */ + pbuf_memcmp(pkt->pbuf, ans.rd_offset, netif_ip6_addr(netif, 0), ans.rd_length) == 0) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Skipping known answer: AAAA\n")); + reply->host_replies &= ~REPLY_HOST_AAAA; + } +#endif + } + } + + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + service = mdns->services[i]; + if (!service) { + continue; + } + match = reply->serv_replies[i] & check_service(service, &ans.info); + if (match & REPLY_SERVICE_TYPE_PTR) { + rr_ttl = MDNS_TTL_4500; + } + if (match && (ans.ttl > (rr_ttl / 2))) { + /* The RR in the known answer matches an RR we are planning to send, + * and the TTL is less than half gone. + * If the payload matches we should not send that answer. + */ + if (ans.info.type == DNS_RRTYPE_PTR) { + /* Read domain and compare */ + struct mdns_domain known_ans, my_ans; + u16_t len; + len = mdns_readname(pkt->pbuf, ans.rd_offset, &known_ans); + if (len != MDNS_READNAME_ERROR) { + if (match & REPLY_SERVICE_TYPE_PTR) { + res = mdns_build_service_domain(&my_ans, service, 0); + if (res == ERR_OK && mdns_domain_eq(&known_ans, &my_ans)) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Skipping known answer: service type PTR\n")); + reply->serv_replies[i] &= ~REPLY_SERVICE_TYPE_PTR; + } + } + if (match & REPLY_SERVICE_NAME_PTR) { + res = mdns_build_service_domain(&my_ans, service, 1); + if (res == ERR_OK && mdns_domain_eq(&known_ans, &my_ans)) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Skipping known answer: service name PTR\n")); + reply->serv_replies[i] &= ~REPLY_SERVICE_NAME_PTR; + } + } + } + } else if (match & REPLY_SERVICE_SRV) { + /* Read and compare to my SRV record */ + u16_t field16, len, read_pos; + struct mdns_domain known_ans, my_ans; + read_pos = ans.rd_offset; + do { + /* Check priority field */ + len = pbuf_copy_partial(pkt->pbuf, &field16, sizeof(field16), read_pos); + if (len != sizeof(field16) || lwip_ntohs(field16) != SRV_PRIORITY) { + break; + } + read_pos += len; + /* Check weight field */ + len = pbuf_copy_partial(pkt->pbuf, &field16, sizeof(field16), read_pos); + if (len != sizeof(field16) || lwip_ntohs(field16) != SRV_WEIGHT) { + break; + } + read_pos += len; + /* Check port field */ + len = pbuf_copy_partial(pkt->pbuf, &field16, sizeof(field16), read_pos); + if (len != sizeof(field16) || lwip_ntohs(field16) != service->port) { + break; + } + read_pos += len; + /* Check host field */ + len = mdns_readname(pkt->pbuf, read_pos, &known_ans); + mdns_build_host_domain(&my_ans, mdns); + if (len == MDNS_READNAME_ERROR || !mdns_domain_eq(&known_ans, &my_ans)) { + break; + } + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Skipping known answer: SRV\n")); + reply->serv_replies[i] &= ~REPLY_SERVICE_SRV; + } while (0); + } else if (match & REPLY_SERVICE_TXT) { + mdns_prepare_txtdata(service); + if (service->txtdata.length == ans.rd_length && + pbuf_memcmp(pkt->pbuf, ans.rd_offset, service->txtdata.name, ans.rd_length) == 0) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Skipping known answer: TXT\n")); + reply->serv_replies[i] &= ~REPLY_SERVICE_TXT; + } + } + } + } + } + + return ERR_OK; +} + +/** + * Check the incoming packet and parse all authoritative answers to see if the + * query is a probe query. + * + * @param netif network interface of incoming packet + * @param pkt incoming packet + * @param reply outgoing message + * @return err_t + */ +static err_t +mdns_parse_pkt_authoritative_answers(struct netif *netif, struct mdns_packet *pkt, + struct mdns_outmsg *reply) +{ + struct mdns_host *mdns = NETIF_TO_HOST(netif); + struct mdns_service *service; + int i; + err_t res; + + while (pkt->authoritative_left) { + struct mdns_answer ans; + u8_t rev_v6; + int match; + + res = mdns_read_answer(pkt, &ans, &pkt->authoritative_left); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse answer, skipping query packet\n")); + return res; + } + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Authoritative answer for domain ")); + mdns_domain_debug_print(&ans.info.domain); + LWIP_DEBUGF(MDNS_DEBUG, (" type %d class %d\n", ans.info.type, ans.info.klass)); + + + if (ans.info.type == DNS_RRTYPE_ANY || ans.info.klass == DNS_RRCLASS_ANY) { + /* Skip known answers for ANY type & class */ + continue; + } + + rev_v6 = 0; + match = reply->host_replies & check_host(netif, &ans.info, &rev_v6); + if (match) { + reply->probe_query_recv = 1; + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Probe for own host info received\n")); + } + + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + service = mdns->services[i]; + if (!service) { + continue; + } + match = reply->serv_replies[i] & check_service(service, &ans.info); + + if (match) { + reply->probe_query_recv = 1; + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Probe for own service info received\n")); + } + } + } + + return ERR_OK; +} + +/** + * Add / copy message to delaying message buffer. + * + * @param dest destination msg struct + * @param src source msg struct + */ +static void +mdns_add_msg_to_delayed(struct mdns_outmsg *dest, struct mdns_outmsg *src) +{ + int i; + + dest->host_questions |= src->host_questions; + dest->host_replies |= src->host_replies; + dest->host_reverse_v6_replies |= src->host_reverse_v6_replies; + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + dest->serv_questions[i] |= src->serv_questions[i]; + dest->serv_replies[i] |= src->serv_replies[i]; + } + + dest->flags = src->flags; + dest->cache_flush = src->cache_flush; + dest->tx_id = src->tx_id; + dest->legacy_query = src->legacy_query; +} + +/** + * Handle question MDNS packet + * - Perform probe tiebreaking when in probing state + * - Parse all questions and set bits what answers to send + * - Clear pending answers if known answers are supplied + * - Define which type of answer is requested + * - Send out packet or put it on hold until after random time + * + * @param pkt incoming packet (in stack) + * @param netif network interface of incoming packet + */ +static void +mdns_handle_question(struct mdns_packet *pkt, struct netif *netif) +{ + struct mdns_host *mdns = NETIF_TO_HOST(netif); + struct mdns_outmsg reply; + u8_t rrs_to_send; + u8_t shared_answer = 0; + u8_t delay_response = 1; + u8_t send_unicast = 0; + u8_t listen_to_QU_bit = 0; + int i; + err_t res; + + if ((mdns->state == MDNS_STATE_PROBING) || + (mdns->state == MDNS_STATE_ANNOUNCE_WAIT)) { + /* Probe Tiebreaking */ + /* Check if packet is a probe message */ + if ((pkt->questions > 0) && (pkt->answers == 0) && + (pkt->authoritative > 0) && (pkt->additional == 0)) { + /* This should be a probe message -> call probe handler */ + mdns_handle_probe_tiebreaking(netif, pkt); + } + } + + if ((mdns->state != MDNS_STATE_COMPLETE) && + (mdns->state != MDNS_STATE_ANNOUNCING)) { + /* Don't answer questions until we've verified our domains via probing */ + /* @todo we should check incoming questions during probing for tiebreaking */ + return; + } + + memset(&reply, 0, sizeof(struct mdns_outmsg)); + + /* Parse question */ + res = mdns_parse_pkt_questions(netif, pkt, &reply); + if (res != ERR_OK) { + return; + } + /* Parse answers -> count as known answers because it's a question */ + res = mdns_parse_pkt_known_answers(netif, pkt, &reply); + if (res != ERR_OK) { + return; + } + if (pkt->next_answer) { + /* Also parse known-answers from additional packets */ + struct mdns_packet *pkta = pkt->next_answer; + while (pkta) { + res = mdns_parse_pkt_known_answers(netif, pkta, &reply); + if (res != ERR_OK) { + return; + } + pkta = pkta->next_answer; + } + } + /* Parse authoritative answers -> probing */ + /* If it's a probe query, we need to directly answer via unicast. */ + res = mdns_parse_pkt_authoritative_answers(netif, pkt, &reply); + if (res != ERR_OK) { + return; + } + /* Ignore additional answers -> do not have any need for them at the moment */ + if(pkt->additional) { + LWIP_DEBUGF(MDNS_DEBUG, + ("MDNS: Query contains additional answers -> they are discarded\n")); + } + + /* Any replies on question? */ + rrs_to_send = reply.host_replies | reply.host_questions; + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + rrs_to_send |= reply.serv_replies[i] | reply.serv_questions[i]; + } + + if (!rrs_to_send) { + /* This case is most common */ + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Nothing to answer\n")); + return; + } + + reply.flags = DNS_FLAG1_RESPONSE | DNS_FLAG1_AUTHORATIVE; + + /* Detect if it's a legacy querier asking the question + * How to detect legacy DNS query? (RFC6762 section 6.7) + * - source port != 5353 + * - a legacy query can only contain 1 question + */ + if (pkt->source_port != LWIP_IANA_PORT_MDNS) { + if (pkt->questions == 1) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: request from legacy querier\n")); + reply.legacy_query = 1; + reply.tx_id = pkt->tx_id; + reply.cache_flush = 0; + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: ignore query if (src UDP port != 5353) && (!= legacy query)\n")); + return; + } + } + else { + reply.cache_flush = 1; + } + + /* Delaying response. (RFC6762 section 6) + * Always delay the response, unicast or multicast, except when: + * - Answering to a single question with a unique answer (not a probe). + * - Answering to a probe query via unicast. + * - Answering to a probe query via multicast if not multicasted within 250ms. + * + * unique answer? -> not if it includes service type or name ptr's + */ + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + shared_answer |= (reply.serv_replies[i] & + (REPLY_SERVICE_TYPE_PTR | REPLY_SERVICE_NAME_PTR)); + } + if ( ((pkt->questions == 1) && (!shared_answer) && !reply.probe_query_recv) + || (reply.probe_query_recv && reply.unicast_reply_requested)) { + delay_response = 0; + } +#if LWIP_IPV6 + if (IP_IS_V6_VAL(pkt->source_addr) && reply.probe_query_recv + && !reply.unicast_reply_requested && !mdns->ipv6.multicast_probe_timeout) { + delay_response = 0; + } +#endif +#if LWIP_IPV4 + if (IP_IS_V4_VAL(pkt->source_addr) && reply.probe_query_recv + && !reply.unicast_reply_requested && !mdns->ipv4.multicast_probe_timeout) { + delay_response = 0; + } +#endif + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: response %s delayed\n", (delay_response ? "randomly" : "not"))); + + /* Unicast / multicast response: + * Answering to (m)DNS querier via unicast response. + * When: + * a) Unicast reply requested && recently multicasted 1/4ttl (RFC6762 section 5.4) + * b) Direct unicast query to port 5353 (RFC6762 section 5.5) + * c) Reply to Legacy DNS querier (RFC6762 section 6.7) + * d) A probe message is received requesting unicast (RFC6762 section 6) + */ + +#if LWIP_IPV6 + if ((IP_IS_V6_VAL(pkt->source_addr) && mdns->ipv6.multicast_timeout_25TTL)) { + listen_to_QU_bit = 1; + } +#endif +#if LWIP_IPV4 + if ((IP_IS_V4_VAL(pkt->source_addr) && mdns->ipv4.multicast_timeout_25TTL)) { + listen_to_QU_bit = 1; + } +#endif + if ( (reply.unicast_reply_requested && listen_to_QU_bit) + || pkt->recv_unicast + || reply.legacy_query + || (reply.probe_query_recv && reply.unicast_reply_requested)) { + send_unicast = 1; + } + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: send response via %s\n", (send_unicast ? "unicast" : "multicast"))); + + /* Send out or put on waiting list */ + if (delay_response) { + if (send_unicast) { +#if LWIP_IPV6 + /* Add answers to IPv6 waiting list if: + * - it's a IPv6 incoming packet + * - no message is in it yet + */ + if (IP_IS_V6_VAL(pkt->source_addr) && !mdns->ipv6.unicast_msg_in_use) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: add answers to unicast IPv6 waiting list\n")); + SMEMCPY(&mdns->ipv6.delayed_msg_unicast.dest_addr, &pkt->source_addr, sizeof(ip_addr_t)); + mdns->ipv6.delayed_msg_unicast.dest_port = pkt->source_port; + + mdns_add_msg_to_delayed(&mdns->ipv6.delayed_msg_unicast, &reply); + + mdns_set_timeout(netif, MDNS_RESPONSE_DELAY, mdns_send_unicast_msg_delayed_ipv6, + &mdns->ipv6.unicast_msg_in_use); + } +#endif +#if LWIP_IPV4 + /* Add answers to IPv4 waiting list if: + * - it's a IPv4 incoming packet + * - no message is in it yet + */ + if (IP_IS_V4_VAL(pkt->source_addr) && !mdns->ipv4.unicast_msg_in_use) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: add answers to unicast IPv4 waiting list\n")); + SMEMCPY(&mdns->ipv4.delayed_msg_unicast.dest_addr, &pkt->source_addr, sizeof(ip_addr_t)); + mdns->ipv4.delayed_msg_unicast.dest_port = pkt->source_port; + + mdns_add_msg_to_delayed(&mdns->ipv4.delayed_msg_unicast, &reply); + + mdns_set_timeout(netif, MDNS_RESPONSE_DELAY, mdns_send_unicast_msg_delayed_ipv4, + &mdns->ipv4.unicast_msg_in_use); + } +#endif + } + else { +#if LWIP_IPV6 + /* Add answers to IPv6 waiting list if: + * - it's a IPv6 incoming packet + * - the 1 second timeout is passed (RFC6762 section 6) + * - and it's not a probe packet + * Or if: + * - it's a IPv6 incoming packet + * - and it's a probe packet + */ + if (IP_IS_V6_VAL(pkt->source_addr) && !mdns->ipv6.multicast_timeout + && !reply.probe_query_recv) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: add answers to multicast IPv6 waiting list\n")); + + mdns_add_msg_to_delayed(&mdns->ipv6.delayed_msg_multicast, &reply); + + mdns_set_timeout(netif, MDNS_RESPONSE_DELAY, mdns_send_multicast_msg_delayed_ipv6, + &mdns->ipv6.multicast_msg_waiting); + } + else if (IP_IS_V6_VAL(pkt->source_addr) && reply.probe_query_recv) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: add answers to probe multicast IPv6 waiting list\n")); + + mdns_add_msg_to_delayed(&mdns->ipv6.delayed_msg_multicast, &reply); + + mdns->ipv6.multicast_msg_waiting = 1; + } +#endif +#if LWIP_IPV4 + /* Add answers to IPv4 waiting list if: + * - it's a IPv4 incoming packet + * - the 1 second timeout is passed (RFC6762 section 6) + * - and it's not a probe packet + * Or if: + * - it's a IPv4 incoming packet + * - and it's a probe packet + */ + if (IP_IS_V4_VAL(pkt->source_addr) && !mdns->ipv4.multicast_timeout + && !reply.probe_query_recv) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: add answers to multicast IPv4 waiting list\n")); + + mdns_add_msg_to_delayed(&mdns->ipv4.delayed_msg_multicast, &reply); + + mdns_set_timeout(netif, MDNS_RESPONSE_DELAY, mdns_send_multicast_msg_delayed_ipv4, + &mdns->ipv4.multicast_msg_waiting); + } + else if (IP_IS_V4_VAL(pkt->source_addr) && reply.probe_query_recv) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: add answers to probe multicast IPv4 waiting list\n")); + + mdns_add_msg_to_delayed(&mdns->ipv4.delayed_msg_multicast, &reply); + + mdns->ipv4.multicast_msg_waiting = 1; + } +#endif + } + } + else { + if (send_unicast) { + /* Copy source IP/port to use when responding unicast */ + SMEMCPY(&reply.dest_addr, &pkt->source_addr, sizeof(ip_addr_t)); + reply.dest_port = pkt->source_port; + /* send answer directly via unicast */ + res = mdns_send_outpacket(&reply, netif); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Unicast answer could not be send\n")); + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Unicast answer send successfully\n")); + } + return; + } + else { + /* Set IP/port to use when responding multicast */ +#if LWIP_IPV6 + if (IP_IS_V6_VAL(pkt->source_addr)) { + if (mdns->ipv6.multicast_timeout && !reply.probe_query_recv) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: we just multicasted, ignore question\n")); + return; + } + SMEMCPY(&reply.dest_addr, &v6group, sizeof(ip_addr_t)); + } +#endif +#if LWIP_IPV4 + if (IP_IS_V4_VAL(pkt->source_addr)) { + if (mdns->ipv4.multicast_timeout && !reply.probe_query_recv) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: we just multicasted, ignore question\n")); + return; + } + SMEMCPY(&reply.dest_addr, &v4group, sizeof(ip_addr_t)); + } +#endif + reply.dest_port = LWIP_IANA_PORT_MDNS; + /* send answer directly via multicast */ + res = mdns_send_outpacket(&reply, netif); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Multicast answer could not be send\n")); + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Multicast answer send successfully\n")); +#if LWIP_IPV6 + if (IP_IS_V6_VAL(pkt->source_addr)) { + mdns_start_multicast_timeouts_ipv6(netif); + } +#endif +#if LWIP_IPV4 + if (IP_IS_V4_VAL(pkt->source_addr)) { + mdns_start_multicast_timeouts_ipv4(netif); + } +#endif + } + return; + } + } +} + +/** + * Handle truncated question MDNS packet + * - Called by timer + * - Call mdns_handle_question + * - Do cleanup + * + * @param arg incoming packet (in pool) + */ +static void +mdns_handle_tc_question(void *arg) +{ + struct mdns_packet *pkt = (struct mdns_packet *)arg; + struct netif *from = netif_get_by_index(pkt->pbuf->if_idx); + /* timer as elapsed, now handle this question */ + mdns_handle_question(pkt, from); + /* remove from pending list */ + if (pending_tc_questions == pkt) { + pending_tc_questions = pkt->next_tc_question; + } + else { + struct mdns_packet *prev = pending_tc_questions; + while (prev && prev->next_tc_question != pkt) { + prev = prev->next_tc_question; + } + LWIP_ASSERT("pkt not found in pending_tc_questions list", prev != NULL); + prev->next_tc_question = pkt->next_tc_question; + } + /* free linked answers and this question */ + while (pkt->next_answer) { + struct mdns_packet *ans = pkt->next_answer; + pkt->next_answer = ans->next_answer; + pbuf_free(ans->pbuf); + LWIP_MEMPOOL_FREE(MDNS_PKTS, ans); + } + pbuf_free(pkt->pbuf); + LWIP_MEMPOOL_FREE(MDNS_PKTS, pkt); +} + +/** + * Save time when a probe conflict occurs: + * - Check if we exceeded the maximum of 15 conflicts in 10seconds. + * + * @param netif network interface on which the conflict occurred. + */ +static void +mdns_conflict_save_time(struct netif *netif) +{ + struct mdns_host* mdns = NETIF_TO_HOST(netif); + int i; + u32_t diff; + u8_t index2; + + /* Increase the number of conflicts occurred */ + mdns->num_conflicts++; + mdns->conflict_time[mdns->index] = sys_now(); + /* Print timestamp list */ + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: conflict timestamp list, insert index = %d\n", mdns->index)); + for(i = 0; i < MDNS_PROBE_MAX_CONFLICTS_BEFORE_RATE_LIMIT; i++) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: time no. %d = %d\n", i, mdns->conflict_time[i])); + } + /* Check if we had enough conflicts, minimum 15 */ + if (mdns->num_conflicts >= MDNS_PROBE_MAX_CONFLICTS_BEFORE_RATE_LIMIT) { + /* Get the index to the oldest timestamp */ + index2 = (mdns->index + 1) % MDNS_PROBE_MAX_CONFLICTS_BEFORE_RATE_LIMIT; + /* Compare the oldest vs newest time stamp */ + diff = mdns->conflict_time[mdns->index] - mdns->conflict_time[index2]; + /* If they are less then 10 seconds apart, initiate rate limit */ + if (diff < MDNS_PROBE_MAX_CONFLICTS_TIME_WINDOW) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: probe rate limit enabled\n")); + mdns->rate_limit_activated = 1; + } + } + /* Increase index */ + mdns->index = (mdns->index + 1) % MDNS_PROBE_MAX_CONFLICTS_BEFORE_RATE_LIMIT; +} + +/** + * Handle a probe conflict: + * - Check if we exceeded the maximum of 15 conflicts in 10seconds. + * - Let the user know there is a conflict. + * + * @param netif network interface on which the conflict occurred. + * @param slot service index +1 on which the conflict occurred (0 indicate hostname conflict). + */ +static void +mdns_probe_conflict(struct netif *netif, s8_t slot) +{ + /* Increase the number of conflicts occurred and check rate limiting */ + mdns_conflict_save_time(netif); + + /* Disable currently running probe / announce timer */ + sys_untimeout(mdns_probe_and_announce, netif); + + /* Inform the host on the conflict, if a callback is set */ + if (mdns_name_result_cb != NULL) { + mdns_name_result_cb(netif, MDNS_PROBING_CONFLICT, slot); + } + /* TODO: rename and call restart if no mdns_name_result_cb was set? */ +} + +/** + * Loockup matching request for response MDNS packet + */ +#if LWIP_MDNS_SEARCH +static struct mdns_request * +mdns_lookup_request(struct mdns_rr_info *rr) +{ + int i; + /* search originating request */ + for (i = 0; i < MDNS_MAX_REQUESTS; i++) { + if ((mdns_requests[i].result_fn != NULL) && + (check_request(&mdns_requests[i], rr) != 0)) { + return &mdns_requests[i]; + } + } + return NULL; +} +#endif + +/** + * Handle response MDNS packet: + * - Handle responses on probe query + * - Perform conflict resolution on every packet (RFC6762 section 9) + * + * @param pkt incoming packet + * @param netif network interface on which packet was received + */ +static void +mdns_handle_response(struct mdns_packet *pkt, struct netif *netif) +{ + struct mdns_host* mdns = NETIF_TO_HOST(netif); + u16_t total_answers_left; +#if LWIP_MDNS_SEARCH + struct mdns_request *req = NULL; + s8_t first = 1; +#endif + + /* Ignore responses with a source port different from 5353 + * (LWIP_IANA_PORT_MDNS) -> RFC6762 section 6 */ + if (pkt->source_port != LWIP_IANA_PORT_MDNS) { + return; + } + + /* Ignore all questions */ + while (pkt->questions_left) { + struct mdns_question q; + err_t res; + res = mdns_read_question(pkt, &q); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse question, skipping response packet\n")); + return; + } +#if LWIP_MDNS_SEARCH + else { + req = mdns_lookup_request(&q.info); + } +#endif + } + /* We need to check all resource record sections: answers, authoritative and additional */ + total_answers_left = pkt->answers_left + pkt->authoritative_left + pkt->additional_left; + while (total_answers_left) { + struct mdns_answer ans; + err_t res; + + res = mdns_read_answer(pkt, &ans, &total_answers_left); + if (res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Failed to parse answer, skipping response packet\n")); + return; + } + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Answer for domain ")); + mdns_domain_debug_print(&ans.info.domain); + LWIP_DEBUGF(MDNS_DEBUG, (" type %d class %d\n", ans.info.type, ans.info.klass)); + + if (ans.info.type == DNS_RRTYPE_ANY || ans.info.klass != DNS_RRCLASS_IN) { + /* Skip answers for ANY type or if class != IN */ + continue; + } + +#if LWIP_MDNS_SEARCH + if (req && req->only_ptr) { + /* Need to recheck that this answer match request that match previous answer */ + if (memcmp (req->service.name, ans.info.domain.name, req->service.length) != 0) + req = NULL; + } + if (!req) { + /* Try hard to search matching request */ + req = mdns_lookup_request(&ans.info); + } + if (req && req->result_fn) { + u16_t offset; + struct pbuf *p; + int flags = (first ? MDNS_SEARCH_RESULT_FIRST : 0) | + (!total_answers_left ? MDNS_SEARCH_RESULT_LAST : 0); + if (req->only_ptr) { + if (ans.info.type != DNS_RRTYPE_PTR) + continue; /* Ignore non matching answer type */ + flags = MDNS_SEARCH_RESULT_FIRST | MDNS_SEARCH_RESULT_LAST; + } + p = pbuf_skip(pkt->pbuf, ans.rd_offset, &offset); + if (ans.info.type == DNS_RRTYPE_PTR || ans.info.type == DNS_RRTYPE_SRV) { + /* Those RR types have compressed domain name. Must uncompress here, + since cannot be done without pbuf. */ + struct { + u16_t values[3]; /* SRV: Prio, Weight, Port */ + struct mdns_domain dom; /* PTR & SRV: Domain (uncompressed) */ + } data; + u16_t off = (ans.info.type == DNS_RRTYPE_SRV ? 6 : 0); + u16_t len = mdns_readname(pkt->pbuf, ans.rd_offset + off, &data.dom); + if (len == MDNS_READNAME_ERROR) { + /* Ensure result_fn is called anyway, just copy failed domain as is */ + data.dom.length = ans.rd_length - off; + memcpy(&data.dom, (const char *)p->payload + offset + off, data.dom.length); + } + /* Adjust len/off according RR type */ + if (ans.info.type == DNS_RRTYPE_SRV) { + memcpy(&data, (const char *)p->payload + offset, 6); + len = data.dom.length + 6; + off = 0; + } else { + len = data.dom.length; + off = 6; + } + req->result_fn(&ans, (const char *)&data + off, len, flags, req->arg); + } else { + /* Direct call result_fn with varpart pointing in pbuf payload */ + req->result_fn(&ans, (const char *)p->payload + offset, ans.rd_length, flags, req->arg); + } + first = 0; + } +#endif + + /* "Conflicting Multicast DNS responses received *before* the first probe + * packet is sent MUST be silently ignored" so drop answer if we haven't + * started probing yet. */ + if ((mdns->state == MDNS_STATE_PROBING) || + (mdns->state == MDNS_STATE_ANNOUNCE_WAIT)) { + struct mdns_domain domain; + u8_t i; + + res = mdns_build_host_domain(&domain, mdns); + if (res == ERR_OK && mdns_domain_eq(&ans.info.domain, &domain)) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Probe response matches host domain!")); + mdns_probe_conflict(netif, 0); + break; + } + + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + struct mdns_service* service = mdns->services[i]; + if (!service) { + continue; + } + res = mdns_build_service_domain(&domain, service, 1); + if ((res == ERR_OK) && mdns_domain_eq(&ans.info.domain, &domain)) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Probe response matches service domain!")); + mdns_probe_conflict(netif, i + 1); + break; + } + } + if (i < MDNS_MAX_SERVICES) + break; + } + /* Perform conflict resolution (RFC6762 section 9): + * We assume a conflict if the hostname or service name matches the answers + * domain. Only if the rdata matches exactly we reset our assumption to no + * conflict. As stated in the RFC: + * What may be considered inconsistent is context sensitive, except that + * resource records with identical rdata are never considered inconsistent, + * even if they originate from different hosts. + */ + else if ((mdns->state == MDNS_STATE_ANNOUNCING) || + (mdns->state == MDNS_STATE_COMPLETE)) { + struct mdns_domain domain; + u8_t i; + u8_t conflict = 0; + + /* Evaluate unique hostname records -> A and AAAA */ + res = mdns_build_host_domain(&domain, mdns); + if (res == ERR_OK && mdns_domain_eq(&ans.info.domain, &domain)) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: response matches host domain, assuming conflict\n")); + /* This means a conflict has taken place, except when the packet contains + * exactly the same rdata. */ + conflict = 1; + /* Evaluate rdata -> to see if it's a copy of our own data */ + if (ans.info.type == DNS_RRTYPE_A) { +#if LWIP_IPV4 + if (ans.rd_length == sizeof(ip4_addr_t) && + pbuf_memcmp(pkt->pbuf, ans.rd_offset, netif_ip4_addr(netif), ans.rd_length) == 0) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: response equals our own IPv4 address record -> no conflict\n")); + conflict = 0; + } +#endif + } + else if (ans.info.type == DNS_RRTYPE_AAAA) { +#if LWIP_IPV6 + if (ans.rd_length == sizeof(ip6_addr_p_t)) { + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (pbuf_memcmp(pkt->pbuf, ans.rd_offset, netif_ip6_addr(netif, i), ans.rd_length) == 0) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: response equals our own iPv6 address record, num = %d -> no conflict\n",i)); + conflict = 0; + } + } + } +#endif + } + } + /* Evaluate unique service name records -> SRV and TXT */ + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + struct mdns_service* service = mdns->services[i]; + if (!service) { + continue; + } + res = mdns_build_service_domain(&domain, service, 1); + if ((res == ERR_OK) && mdns_domain_eq(&ans.info.domain, &domain)) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: response matches service domain, assuming conflict\n")); + /* This means a conflict has taken place, except when the packet contains + * exactly the same rdata. */ + conflict = 1; + /* Evaluate rdata -> to see if it's a copy of our own data */ + if (ans.info.type == DNS_RRTYPE_SRV) { + /* Read and compare to with our SRV record */ + u16_t field16, len, read_pos; + struct mdns_domain srv_ans, my_ans; + read_pos = ans.rd_offset; + do { + /* Check priority field */ + len = pbuf_copy_partial(pkt->pbuf, &field16, sizeof(field16), read_pos); + if (len != sizeof(field16) || lwip_ntohs(field16) != SRV_PRIORITY) { + break; + } + read_pos += len; + /* Check weight field */ + len = pbuf_copy_partial(pkt->pbuf, &field16, sizeof(field16), read_pos); + if (len != sizeof(field16) || lwip_ntohs(field16) != SRV_WEIGHT) { + break; + } + read_pos += len; + /* Check port field */ + len = pbuf_copy_partial(pkt->pbuf, &field16, sizeof(field16), read_pos); + if (len != sizeof(field16) || lwip_ntohs(field16) != service->port) { + break; + } + read_pos += len; + /* Check host field */ + len = mdns_readname(pkt->pbuf, read_pos, &srv_ans); + mdns_build_host_domain(&my_ans, mdns); + if (len == MDNS_READNAME_ERROR || !mdns_domain_eq(&srv_ans, &my_ans)) { + break; + } + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: response equals our own SRV record -> no conflict\n")); + conflict = 0; + } while (0); + } else if (ans.info.type == DNS_RRTYPE_TXT) { + mdns_prepare_txtdata(service); + if (service->txtdata.length == ans.rd_length && + pbuf_memcmp(pkt->pbuf, ans.rd_offset, service->txtdata.name, ans.rd_length) == 0) { + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: response equals our own TXT record -> no conflict\n")); + conflict = 0; + } + } + } + } + if (conflict != 0) { + /* Reset host to probing to reconfirm uniqueness */ + LWIP_DEBUGF(MDNS_DEBUG, ("mDNS: Conflict resolution -> reset to probing state\n")); + mdns_resp_restart(netif); + break; + } + } + } + /* Clear all xxx_left variables because we parsed all answers */ + pkt->answers_left = 0; + pkt->authoritative_left = 0; + pkt->additional_left = 0; +} + +/** + * Receive input function for MDNS packets. + * Handles both IPv4 and IPv6 UDP pcbs. + */ +static void +mdns_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) +{ + struct dns_hdr hdr; + struct mdns_packet packet; + struct netif *recv_netif = ip_current_input_netif(); + u16_t offset = 0; + + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(pcb); + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Received IPv%d MDNS packet, len %d\n", IP_IS_V6(addr) ? 6 : 4, p->tot_len)); + + if (NETIF_TO_HOST(recv_netif) == NULL) { + /* From netif not configured for MDNS */ + goto dealloc; + } + + if (pbuf_copy_partial(p, &hdr, SIZEOF_DNS_HDR, offset) < SIZEOF_DNS_HDR) { + /* Too small */ + goto dealloc; + } + offset += SIZEOF_DNS_HDR; + + if (DNS_HDR_GET_OPCODE(&hdr)) { + /* Ignore non-standard queries in multicast packets (RFC 6762, section 18.3) */ + goto dealloc; + } + + memset(&packet, 0, sizeof(packet)); + SMEMCPY(&packet.source_addr, addr, sizeof(packet.source_addr)); + packet.source_port = port; + packet.pbuf = p; + packet.parse_offset = offset; + packet.tx_id = lwip_ntohs(hdr.id); + packet.questions = packet.questions_left = lwip_ntohs(hdr.numquestions); + packet.answers = packet.answers_left = lwip_ntohs(hdr.numanswers); + packet.authoritative = packet.authoritative_left = lwip_ntohs(hdr.numauthrr); + packet.additional = packet.additional_left = lwip_ntohs(hdr.numextrarr); + + /* Source address check (RFC6762 section 11) -> for responses. + * Source address check (RFC6762 section 5.5) -> for queries. + * When the dest addr == multicast addr we know the packet originated on that + * link. If not, we need to check the source address. We only accept queries + * that originated on the link. Others are discarded. + */ +#if LWIP_IPV6 + if (IP_IS_V6(ip_current_dest_addr())) { + /* instead of having one 'v6group' per netif, just compare zoneless here */ + if (!ip_addr_zoneless_eq(ip_current_dest_addr(), &v6group)) { + packet.recv_unicast = 1; + + if (ip6_addr_ismulticast_global(ip_2_ip6(ip_current_src_addr())) + || ip6_addr_isglobal(ip_2_ip6(ip_current_src_addr()))) { + goto dealloc; + } + } + } +#endif +#if LWIP_IPV4 + if (!IP_IS_V6(ip_current_dest_addr())) { + if (!ip_addr_eq(ip_current_dest_addr(), &v4group)) { + packet.recv_unicast = 1; + + if (!ip4_addr_net_eq(ip_2_ip4(ip_current_src_addr()), + netif_ip4_addr(recv_netif), + netif_ip4_netmask(recv_netif))){ + goto dealloc; + } + } + } +#endif + + if (hdr.flags1 & DNS_FLAG1_RESPONSE) { + mdns_handle_response(&packet, recv_netif); + } else { + if (packet.questions && hdr.flags1 & DNS_FLAG1_TRUNC) { + /* this is a new truncated question */ + struct mdns_packet *pkt = (struct mdns_packet *)LWIP_MEMPOOL_ALLOC(MDNS_PKTS); + if (!pkt) + goto dealloc; /* don't reply truncated question if alloc error */ + SMEMCPY(pkt, &packet, sizeof(packet)); + /* insert this question in pending list */ + pkt->next_tc_question = pending_tc_questions; + pending_tc_questions = pkt; + /* question with truncated flags, need to wait 400-500ms before replying */ + sys_timeout(MDNS_RESPONSE_TC_DELAY_MS, mdns_handle_tc_question, pkt); + /* return without dealloc pbuf */ + return; + } + else if (!packet.questions && packet.answers && pending_tc_questions) { + /* this packet is a known-answer packet for a truncated question previously received */ + struct mdns_packet *q = pending_tc_questions; + while (q) { + if ((packet.source_port == q->source_port) && + ip_addr_eq(&packet.source_addr, &q->source_addr)) + break; + q = q->next_tc_question; + } + if (q) { + /* found question from the same source */ + struct mdns_packet *pkt = (struct mdns_packet *)LWIP_MEMPOOL_ALLOC(MDNS_PKTS); + if (!pkt) + goto dealloc; /* don't reply truncated question if alloc error */ + SMEMCPY(pkt, &packet, sizeof(packet)); + /* insert this known-ansert in question */ + pkt->next_answer = q->next_answer; + q->next_answer = pkt; + /* nothing more to do */ + return; + } + } + /* if previous tests fail, handle this question normally */ + mdns_handle_question(&packet, recv_netif); + } + +dealloc: + pbuf_free(p); +} + +#if LWIP_NETIF_EXT_STATUS_CALLBACK && MDNS_RESP_USENETIF_EXTCALLBACK +static void +mdns_netif_ext_status_callback(struct netif *netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t *args) +{ + LWIP_UNUSED_ARG(args); + + /* MDNS enabled on netif? */ + if (NETIF_TO_HOST(netif) == NULL) { + return; + } + + if (reason & LWIP_NSC_STATUS_CHANGED) { + if (args->status_changed.state != 0) { + mdns_resp_restart(netif); + } + /* TODO: send goodbye message */ + } + if (reason & LWIP_NSC_LINK_CHANGED) { + if (args->link_changed.state != 0) { + mdns_resp_restart(netif); + } + } + if (reason & (LWIP_NSC_IPV4_ADDRESS_CHANGED | LWIP_NSC_IPV4_GATEWAY_CHANGED | + LWIP_NSC_IPV4_NETMASK_CHANGED | LWIP_NSC_IPV4_SETTINGS_CHANGED | + LWIP_NSC_IPV6_SET | LWIP_NSC_IPV6_ADDR_STATE_CHANGED)) { + mdns_resp_restart(netif); + } +} +#endif /* LWIP_NETIF_EXT_STATUS_CALLBACK && MDNS_RESP_USENETIF_EXTCALLBACK */ + +static void +mdns_define_probe_rrs_to_send(struct netif *netif, struct mdns_outmsg *outmsg) +{ + struct mdns_host *mdns = NETIF_TO_HOST(netif); + int i; + + memset(outmsg, 0, sizeof(struct mdns_outmsg)); + + /* Add unicast questions with rtype ANY for all our desired records */ + outmsg->host_questions = QUESTION_PROBE_HOST_ANY; + + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + struct mdns_service* service = mdns->services[i]; + if (!service) { + continue; + } + outmsg->serv_questions[i] = QUESTION_PROBE_SERVICE_NAME_ANY; + } + + /* Add answers to the questions above into the authority section for tiebreaking */ +#if LWIP_IPV4 + if (!ip4_addr_isany_val(*netif_ip4_addr(netif))) { + outmsg->host_replies = REPLY_HOST_A; + } +#endif +#if LWIP_IPV6 + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i))) { + outmsg->host_replies |= REPLY_HOST_AAAA; + } + } +#endif + + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + struct mdns_service *serv = mdns->services[i]; + if (serv) { + outmsg->serv_replies[i] = REPLY_SERVICE_SRV; + } + } +} + +static err_t +mdns_send_probe(struct netif* netif, const ip_addr_t *destination) +{ + struct mdns_outmsg outmsg; + + mdns_define_probe_rrs_to_send(netif, &outmsg); + + outmsg.tx_id = 0; + outmsg.dest_port = LWIP_IANA_PORT_MDNS; + SMEMCPY(&outmsg.dest_addr, destination, sizeof(outmsg.dest_addr)); + return mdns_send_outpacket(&outmsg, netif); +} + +/** + * Timer callback for probing and announcing on the network. + */ +static void +mdns_probe_and_announce(void* arg) +{ + struct netif *netif = (struct netif *)arg; + struct mdns_host* mdns = NETIF_TO_HOST(netif); + u32_t announce_delay; + + + switch (mdns->state) { + case MDNS_STATE_OFF: + case MDNS_STATE_PROBE_WAIT: + case MDNS_STATE_PROBING: +#if LWIP_IPV4 + /*if ipv4 wait with probing until address is set*/ + if (!ip4_addr_isany_val(*netif_ip4_addr(netif)) && + mdns_send_probe(netif, &v4group) == ERR_OK) +#endif + { +#if LWIP_IPV6 + if (mdns_send_probe(netif, &v6group) == ERR_OK) +#endif + { + mdns->state = MDNS_STATE_PROBING; + mdns->sent_num++; + } + } + + if (mdns->sent_num >= MDNS_PROBE_COUNT) { + mdns->state = MDNS_STATE_ANNOUNCE_WAIT; + mdns->sent_num = 0; + } + + if (mdns->sent_num && mdns->rate_limit_activated == 1) { + /* delay second probe if rate limiting activated */ + sys_timeout(MDNS_PROBE_MAX_CONFLICTS_TIMEOUT, mdns_probe_and_announce, netif); + } + else { + sys_timeout(MDNS_PROBE_DELAY_MS, mdns_probe_and_announce, netif); + } + break; + case MDNS_STATE_ANNOUNCE_WAIT: + case MDNS_STATE_ANNOUNCING: + if (mdns->sent_num == 0) { + /* probing was successful, announce all records */ + mdns->state = MDNS_STATE_ANNOUNCING; + /* Reset rate limit max probe conflict timeout flag */ + mdns->rate_limit_activated = 0; + /* Let the client know probing was successful */ + if (mdns_name_result_cb != NULL) { + mdns_name_result_cb(netif, MDNS_PROBING_SUCCESSFUL, 0); + } + } + + mdns_resp_announce(netif); + mdns->sent_num++; + + if (mdns->sent_num >= MDNS_ANNOUNCE_COUNT) { + /* Announcing and probing complete */ + mdns->state = MDNS_STATE_COMPLETE; + mdns->sent_num = 0; + } + else { + announce_delay = MDNS_ANNOUNCE_DELAY_MS * (1 << (mdns->sent_num - 1)); + sys_timeout(announce_delay, mdns_probe_and_announce, netif); + } + break; + case MDNS_STATE_COMPLETE: + default: + /* Do nothing */ + break; + } +} + +/** + * @ingroup mdns + * Activate MDNS responder for a network interface. + * @param netif The network interface to activate. + * @param hostname Name to use. Queries for <hostname>.local will be answered + * with the IP addresses of the netif. The hostname will be copied, the + * given pointer can be on the stack. + * @return ERR_OK if netif was added, an err_t otherwise + */ +err_t +mdns_resp_add_netif(struct netif *netif, const char *hostname) +{ + err_t res; + struct mdns_host *mdns; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ERROR("mdns_resp_add_netif: netif != NULL", (netif != NULL), return ERR_VAL); + LWIP_ERROR("mdns_resp_add_netif: Hostname too long", (strlen(hostname) <= MDNS_LABEL_MAXLEN), return ERR_VAL); + + LWIP_ASSERT("mdns_resp_add_netif: Double add", NETIF_TO_HOST(netif) == NULL); + mdns = (struct mdns_host *) mem_calloc(1, sizeof(struct mdns_host)); + LWIP_ERROR("mdns_resp_add_netif: Alloc failed", (mdns != NULL), return ERR_MEM); + + netif_set_client_data(netif, mdns_netif_client_id, mdns); + + MEMCPY(&mdns->name, hostname, LWIP_MIN(MDNS_LABEL_MAXLEN, strlen(hostname))); + + /* Init delayed message structs with address and port */ +#if LWIP_IPV4 + mdns->ipv4.delayed_msg_multicast.dest_port = LWIP_IANA_PORT_MDNS; + SMEMCPY(&mdns->ipv4.delayed_msg_multicast.dest_addr, &v4group, + sizeof(ip_addr_t)); +#endif + +#if LWIP_IPV6 + mdns->ipv6.delayed_msg_multicast.dest_port = LWIP_IANA_PORT_MDNS; + SMEMCPY(&mdns->ipv6.delayed_msg_multicast.dest_addr, &v6group, + sizeof(ip_addr_t)); +#endif + + /* Join multicast groups */ +#if LWIP_IPV4 + res = igmp_joingroup_netif(netif, ip_2_ip4(&v4group)); + if (res != ERR_OK) { + goto cleanup; + } +#endif +#if LWIP_IPV6 + res = mld6_joingroup_netif(netif, ip_2_ip6(&v6group)); + if (res != ERR_OK) { + goto cleanup; + } +#endif + + mdns_resp_restart(netif); + + return ERR_OK; + +cleanup: + mem_free(mdns); + netif_set_client_data(netif, mdns_netif_client_id, NULL); + return res; +} + +/** + * @ingroup mdns + * Stop responding to MDNS queries on this interface, leave multicast groups, + * and free the helper structure and any of its services. + * @param netif The network interface to remove. + * @return ERR_OK if netif was removed, an err_t otherwise + */ +err_t +mdns_resp_remove_netif(struct netif *netif) +{ + int i; + struct mdns_host *mdns; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("mdns_resp_remove_netif: Null pointer", netif); + mdns = NETIF_TO_HOST(netif); + LWIP_ERROR("mdns_resp_remove_netif: Not an active netif", (mdns != NULL), return ERR_VAL); + + sys_untimeout(mdns_probe_and_announce, netif); + + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + struct mdns_service *service = mdns->services[i]; + if (service) { + mem_free(service); + } + } + + /* Leave multicast groups */ +#if LWIP_IPV4 + igmp_leavegroup_netif(netif, ip_2_ip4(&v4group)); +#endif +#if LWIP_IPV6 + mld6_leavegroup_netif(netif, ip_2_ip6(&v6group)); +#endif + + mem_free(mdns); + netif_set_client_data(netif, mdns_netif_client_id, NULL); + return ERR_OK; +} + +/** + * @ingroup mdns + * Update MDNS hostname for a network interface. + * @param netif The network interface to activate. + * @param hostname Name to use. Queries for <hostname>.local will be answered + * with the IP addresses of the netif. The hostname will be copied, the + * given pointer can be on the stack. + * @return ERR_OK if name could be set on netif, an err_t otherwise + */ +err_t +mdns_resp_rename_netif(struct netif *netif, const char *hostname) +{ + struct mdns_host *mdns; + size_t len; + + LWIP_ASSERT_CORE_LOCKED(); + len = strlen(hostname); + LWIP_ERROR("mdns_resp_rename_netif: netif != NULL", (netif != NULL), return ERR_VAL); + LWIP_ERROR("mdns_resp_rename_netif: Hostname too long", (len <= MDNS_LABEL_MAXLEN), return ERR_VAL); + mdns = NETIF_TO_HOST(netif); + LWIP_ERROR("mdns_resp_rename_netif: Not an mdns netif", (mdns != NULL), return ERR_VAL); + + MEMCPY(&mdns->name, hostname, LWIP_MIN(MDNS_LABEL_MAXLEN, len)); + mdns->name[len] = '\0'; /* null termination in case new name is shorter than previous */ + + mdns_resp_restart_delay(netif, MDNS_PROBE_DELAY_MS); + + return ERR_OK; +} + +/** + * @ingroup mdns + * Checks if an MDNS responder is active for a given network interface. + * @param netif The network interface to test. + * @return nonzero if responder active, zero otherwise. + */ +int +mdns_resp_netif_active(struct netif *netif) +{ + return NETIF_TO_HOST(netif) != NULL; +} + +/** + * @ingroup mdns + * Add a service to the selected network interface. + * @param netif The network interface to publish this service on + * @param name The name of the service + * @param service The service type, like "_http" + * @param proto The service protocol, DNSSD_PROTO_TCP for TCP ("_tcp") and DNSSD_PROTO_UDP + * for others ("_udp") + * @param port The port the service listens to + * @param txt_fn Callback to get TXT data. Will be called each time a TXT reply is created to + * allow dynamic replies. + * @param txt_data Userdata pointer for txt_fn + * @return service_id if the service was added to the netif, an err_t otherwise + */ +s8_t +mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_proto proto, u16_t port, service_get_txt_fn_t txt_fn, void *txt_data) +{ + u8_t slot; + struct mdns_service *srv; + struct mdns_host *mdns; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("mdns_resp_add_service: netif != NULL", netif); + mdns = NETIF_TO_HOST(netif); + LWIP_ERROR("mdns_resp_add_service: Not an mdns netif", (mdns != NULL), return ERR_VAL); + + LWIP_ERROR("mdns_resp_add_service: Name too long", (strlen(name) <= MDNS_LABEL_MAXLEN), return ERR_VAL); + LWIP_ERROR("mdns_resp_add_service: Service too long", (strlen(service) <= MDNS_LABEL_MAXLEN), return ERR_VAL); + LWIP_ERROR("mdns_resp_add_service: Bad proto (need TCP or UDP)", (proto == DNSSD_PROTO_TCP || proto == DNSSD_PROTO_UDP), return ERR_VAL); + + for (slot = 0; slot < MDNS_MAX_SERVICES; slot++) { + if (mdns->services[slot] == NULL) { + break; + } + } + LWIP_ERROR("mdns_resp_add_service: Service list full (increase MDNS_MAX_SERVICES)", (slot < MDNS_MAX_SERVICES), return ERR_MEM); + + srv = (struct mdns_service *)mem_calloc(1, sizeof(struct mdns_service)); + LWIP_ERROR("mdns_resp_add_service: Alloc failed", (srv != NULL), return ERR_MEM); + + MEMCPY(&srv->name, name, LWIP_MIN(MDNS_LABEL_MAXLEN, strlen(name))); + MEMCPY(&srv->service, service, LWIP_MIN(MDNS_LABEL_MAXLEN, strlen(service))); + srv->txt_fn = txt_fn; + srv->txt_userdata = txt_data; + srv->proto = (u16_t)proto; + srv->port = port; + + mdns->services[slot] = srv; + + mdns_resp_restart(netif); + + return slot; +} + +/** + * @ingroup mdns + * Delete a service on the selected network interface. + * @param netif The network interface on which service should be removed + * @param slot The service slot number returned by mdns_resp_add_service + * @return ERR_OK if the service was removed from the netif, an err_t otherwise + */ +err_t +mdns_resp_del_service(struct netif *netif, u8_t slot) +{ + struct mdns_host *mdns; + struct mdns_service *srv; + LWIP_ASSERT("mdns_resp_del_service: netif != NULL", netif); + mdns = NETIF_TO_HOST(netif); + LWIP_ERROR("mdns_resp_del_service: Not an mdns netif", (mdns != NULL), return ERR_VAL); + LWIP_ERROR("mdns_resp_del_service: Invalid Service ID", slot < MDNS_MAX_SERVICES, return ERR_VAL); + LWIP_ERROR("mdns_resp_del_service: Invalid Service ID", (mdns->services[slot] != NULL), return ERR_VAL); + + srv = mdns->services[slot]; + mdns->services[slot] = NULL; + mem_free(srv); + return ERR_OK; +} + +/** + * @ingroup mdns + * Update name for an MDNS service. + * @param netif The network interface to activate. + * @param slot The service slot number returned by mdns_resp_add_service + * @param name The new name for the service + * @return ERR_OK if name could be set on service, an err_t otherwise + */ +err_t +mdns_resp_rename_service(struct netif *netif, u8_t slot, const char *name) +{ + struct mdns_service *srv; + struct mdns_host *mdns; + size_t len; + + LWIP_ASSERT_CORE_LOCKED(); + len = strlen(name); + LWIP_ASSERT("mdns_resp_rename_service: netif != NULL", netif); + mdns = NETIF_TO_HOST(netif); + LWIP_ERROR("mdns_resp_rename_service: Not an mdns netif", (mdns != NULL), return ERR_VAL); + LWIP_ERROR("mdns_resp_rename_service: Name too long", (len <= MDNS_LABEL_MAXLEN), return ERR_VAL); + LWIP_ERROR("mdns_resp_rename_service: Invalid Service ID", slot < MDNS_MAX_SERVICES, return ERR_VAL); + LWIP_ERROR("mdns_resp_rename_service: Invalid Service ID", (mdns->services[slot] != NULL), return ERR_VAL); + + srv = mdns->services[slot]; + + MEMCPY(&srv->name, name, LWIP_MIN(MDNS_LABEL_MAXLEN, len)); + srv->name[len] = '\0'; /* null termination in case new name is shorter than previous */ + + mdns_resp_restart_delay(netif, MDNS_PROBE_DELAY_MS); + + return ERR_OK; +} + +/** + * @ingroup mdns + * Call this function from inside the service_get_txt_fn_t callback to add text data. + * Buffer for TXT data is 256 bytes, and each field is prefixed with a length byte. + * @param service The service provided to the get_txt callback + * @param txt String to add to the TXT field. + * @param txt_len Length of string + * @return ERR_OK if the string was added to the reply, an err_t otherwise + */ +err_t +mdns_resp_add_service_txtitem(struct mdns_service *service, const char *txt, u8_t txt_len) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("mdns_resp_add_service_txtitem: service != NULL", service); + + /* Use a mdns_domain struct to store txt chunks since it is the same encoding */ + return mdns_domain_add_label(&service->txtdata, txt, txt_len); +} + +#if LWIP_MDNS_SEARCH +/** + * @ingroup mdns + * Stop a search request. + * @param request_id The search request to stop + */ +void +mdns_search_stop(u8_t request_id) +{ + struct mdns_request *req; + LWIP_ASSERT("mdns_search_stop: bad request_id", request_id < MDNS_MAX_REQUESTS); + req = &mdns_requests[request_id]; + if (req && req->result_fn) { + req->result_fn = NULL; + } +} + +/** + * @ingroup mdns + * Search a specific service on the network. + * @param name The name of the service + * @param service The service type, like "_http" + * @param proto The service protocol, DNSSD_PROTO_TCP for TCP ("_tcp") and DNSSD_PROTO_UDP + * for others ("_udp") + * @param netif The network interface where to send search request + * @param result_fn Callback to send answer received. Will be called for each answer of a + * response frame matching request sent. + * @param arg Userdata pointer for result_fn + * @param request_id Returned request identifier to allow stop it. + * @return ERR_OK if the search request was created and sent, an err_t otherwise + */ +err_t +mdns_search_service(const char *name, const char *service, enum mdns_sd_proto proto, + struct netif *netif, search_result_fn_t result_fn, void *arg, + u8_t *request_id) +{ + u8_t slot; + struct mdns_request *req; + if (name) { + LWIP_ERROR("mdns_search_service: Name too long", (strlen(name) <= MDNS_LABEL_MAXLEN), return ERR_VAL); + } + LWIP_ERROR("mdns_search_service: Service too long", (strlen(service) < MDNS_DOMAIN_MAXLEN), return ERR_VAL); + LWIP_ERROR("mdns_search_service: Bad reqid pointer", request_id, return ERR_VAL); + LWIP_ERROR("mdns_search_service: Bad proto (need TCP or UDP)", (proto == DNSSD_PROTO_TCP || proto == DNSSD_PROTO_UDP), return ERR_VAL); + for (slot = 0; slot < MDNS_MAX_REQUESTS; slot++) { + if (mdns_requests[slot].result_fn == NULL) { + break; + } + } + if (slot >= MDNS_MAX_REQUESTS) { + /* Don't assert if no more space in mdns_request table. Just return an error. */ + return ERR_MEM; + } + + req = &mdns_requests[slot]; + memset(req, 0, sizeof(struct mdns_request)); + req->result_fn = result_fn; + req->arg = arg; + req->proto = (u16_t)proto; + req->qtype = DNS_RRTYPE_PTR; + if (proto == DNSSD_PROTO_UDP && strcmp(service, "_services._dns-sd") == 0) { + req->only_ptr = 1; /* don't check other answers */ + } + mdns_domain_add_string(&req->service, service); + if (name) { + MEMCPY(&req->name, name, LWIP_MIN(MDNS_LABEL_MAXLEN, strlen(name))); + } + /* save request id (slot) in pointer provided by caller */ + *request_id = slot; + /* now prepare a MDNS request and send it (on specified interface) */ +#if LWIP_IPV6 + mdns_send_request(req, netif, &v6group); +#endif +#if LWIP_IPV4 + mdns_send_request(req, netif, &v4group); +#endif + return ERR_OK; +} +#endif + +/** + * @ingroup mdns + * Send unsolicited answer containing all our known data + * @param netif The network interface to send on + */ +void +mdns_resp_announce(struct netif *netif) +{ + struct mdns_host* mdns; + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ERROR("mdns_resp_announce: netif != NULL", (netif != NULL), return); + + mdns = NETIF_TO_HOST(netif); + if (mdns == NULL) { + return; + } + + /* Do not announce if the mdns responder is off, waiting to probe, probing or + * waiting to announce. */ + if (mdns->state >= MDNS_STATE_ANNOUNCING) { + /* Announce on IPv6 and IPv4 */ +#if LWIP_IPV6 + mdns_announce(netif, &v6group); + mdns_start_multicast_timeouts_ipv6(netif); +#endif +#if LWIP_IPV4 + if (!ip4_addr_isany_val(*netif_ip4_addr(netif))) { + mdns_announce(netif, &v4group); + mdns_start_multicast_timeouts_ipv4(netif); + } +#endif + } /* else: ip address changed while probing was ongoing? @todo reset counter to restart? */ +} + +/** Register a callback function that is called if probing is completed successfully + * or with a conflict. */ +void +mdns_resp_register_name_result_cb(mdns_name_result_cb_t cb) +{ + mdns_name_result_cb = cb; +} + +/** + * @ingroup mdns + * Restart mdns responder after a specified delay. Call this when cable is connected + * after being disconnected or administrative interface is set up after being down + * @param netif The network interface to send on + * @param delay The delay to use before sending probe + */ +void +mdns_resp_restart_delay(struct netif *netif, uint32_t delay) +{ + struct mdns_host* mdns; + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ERROR("mdns_resp_restart: netif != NULL", (netif != NULL), return); + + mdns = NETIF_TO_HOST(netif); + if (mdns == NULL) { + return; + } + /* Make sure timer is not running */ + sys_untimeout(mdns_probe_and_announce, netif); + + mdns->sent_num = 0; + mdns->state = MDNS_STATE_PROBE_WAIT; + + /* RFC6762 section 8.1: If fifteen conflicts occur within any ten-second period, + * then the host MUST wait at least five seconds before each successive + * additional probe attempt. + */ + if (mdns->rate_limit_activated == 1) { + sys_timeout(MDNS_PROBE_MAX_CONFLICTS_TIMEOUT, mdns_probe_and_announce, netif); + } + else { + /* Adjust probe delay according sent probe count. */ + sys_timeout(delay, mdns_probe_and_announce, netif); + } +} + +/** + * @ingroup mdns + * Restart mdns responder. Call this when cable is connected after being disconnected or + * administrative interface is set up after being down + * @param netif The network interface to send on + */ +void +mdns_resp_restart(struct netif *netif) +{ + mdns_resp_restart_delay(netif, MDNS_INITIAL_PROBE_DELAY_MS); +} + +/** + * @ingroup mdns + * Initiate MDNS responder. Will open UDP sockets on port 5353 + */ +void +mdns_resp_init(void) +{ + err_t res; + + /* LWIP_ASSERT_CORE_LOCKED(); is checked by udp_new() */ +#if LWIP_MDNS_SEARCH + memset(mdns_requests, 0, sizeof(mdns_requests)); +#endif + LWIP_MEMPOOL_INIT(MDNS_PKTS); + mdns_pcb = udp_new_ip_type(IPADDR_TYPE_ANY); + LWIP_ASSERT("Failed to allocate pcb", mdns_pcb != NULL); +#if LWIP_MULTICAST_TX_OPTIONS + udp_set_multicast_ttl(mdns_pcb, MDNS_IP_TTL); +#else + mdns_pcb->ttl = MDNS_IP_TTL; +#endif + res = udp_bind(mdns_pcb, IP_ANY_TYPE, LWIP_IANA_PORT_MDNS); + LWIP_UNUSED_ARG(res); /* in case of LWIP_NOASSERT */ + LWIP_ASSERT("Failed to bind pcb", res == ERR_OK); + udp_recv(mdns_pcb, mdns_recv, NULL); + + mdns_netif_client_id = netif_alloc_client_data_id(); + +#if MDNS_RESP_USENETIF_EXTCALLBACK + /* register for netif events when started on first netif */ + netif_add_ext_callback(&netif_callback, mdns_netif_ext_status_callback); +#endif +} + +/** + * @ingroup mdns + * Return TXT userdata of a specific service on a network interface. + * @param netif Network interface. + * @param slot Service index. + */ +void *mdns_get_service_txt_userdata(struct netif *netif, s8_t slot) +{ + struct mdns_host *mdns = NETIF_TO_HOST(netif); + struct mdns_service *s; + LWIP_ASSERT("mdns_get_service_txt_userdata: index out of range", slot < MDNS_MAX_SERVICES); + s = mdns->services[slot]; + return s ? s->txt_userdata : NULL; +} + +#endif /* LWIP_MDNS_RESPONDER */ diff --git a/middleware/lwip/src/apps/mdns/mdns_domain.c b/middleware/lwip/src/apps/mdns/mdns_domain.c new file mode 100644 index 0000000..f9b6ae9 --- /dev/null +++ b/middleware/lwip/src/apps/mdns/mdns_domain.c @@ -0,0 +1,644 @@ +/** + * @file + * MDNS responder implementation - domain related functionalities + */ + +/* + * Copyright (c) 2015 Verisure Innovation AB + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Author: Jasper Verschueren + * + */ + +#include "lwip/apps/mdns.h" +#include "lwip/apps/mdns_domain.h" +#include "lwip/apps/mdns_priv.h" +#include "lwip/prot/dns.h" + +#include + +#if LWIP_IPV6 +#include "lwip/prot/ip6.h" +#endif + +#if LWIP_MDNS_RESPONDER + +/* Stored offsets to beginning of domain names + * Used for compression. + */ +#define DOMAIN_JUMP_SIZE 2 +#define DOMAIN_JUMP 0xc000 + +#define TOPDOMAIN_LOCAL "local" + +#define REVERSE_PTR_TOPDOMAIN "arpa" +#define REVERSE_PTR_V4_DOMAIN "in-addr" +#define REVERSE_PTR_V6_DOMAIN "ip6" + +static const char *dnssd_protos[] = { + "_udp", /* DNSSD_PROTO_UDP */ + "_tcp", /* DNSSD_PROTO_TCP */ +}; + +/* forward declarations (function prototypes)*/ +static err_t mdns_domain_add_label_base(struct mdns_domain *domain, u8_t len); +static err_t mdns_domain_add_label_pbuf(struct mdns_domain *domain, + const struct pbuf *p, u16_t offset, + u8_t len); +static u16_t mdns_readname_loop(struct pbuf *p, u16_t offset, + struct mdns_domain *domain, unsigned depth); +static err_t mdns_add_dotlocal(struct mdns_domain *domain); + + +static err_t +mdns_domain_add_label_base(struct mdns_domain *domain, u8_t len) +{ + if (len > MDNS_LABEL_MAXLEN) { + return ERR_VAL; + } + if (len > 0 && (1 + len + domain->length >= MDNS_DOMAIN_MAXLEN)) { + return ERR_VAL; + } + /* Allow only zero marker on last byte */ + if (len == 0 && (1 + domain->length > MDNS_DOMAIN_MAXLEN)) { + return ERR_VAL; + } + domain->name[domain->length] = len; + domain->length++; + return ERR_OK; +} + +/** + * Add a label part to a domain + * @param domain The domain to add a label to + * @param label The label to add, like <hostname>, 'local', 'com' or '' + * @param len The length of the label + * @return ERR_OK on success, an err_t otherwise if label too long + */ +err_t +mdns_domain_add_label(struct mdns_domain *domain, const char *label, u8_t len) +{ + err_t err = mdns_domain_add_label_base(domain, len); + if (err != ERR_OK) { + return err; + } + if (len) { + MEMCPY(&domain->name[domain->length], label, len); + domain->length += len; + } + return ERR_OK; +} + +/** + * Add a label part to a domain (@see mdns_domain_add_label but copy directly from pbuf) + */ +static err_t +mdns_domain_add_label_pbuf(struct mdns_domain *domain, const struct pbuf *p, u16_t offset, u8_t len) +{ + err_t err = mdns_domain_add_label_base(domain, len); + if (err != ERR_OK) { + return err; + } + if (len) { + if (pbuf_copy_partial(p, &domain->name[domain->length], len, offset) != len) { + /* take back the ++ done before */ + domain->length--; + return ERR_ARG; + } + domain->length += len; + } + return ERR_OK; +} + +/** + * Add a partial domain to a domain + * @param domain The domain to add a label to + * @param source The domain to add, like <\\x09_services\\007_dns-sd\\000> + * @return ERR_OK on success, an err_t otherwise if label too long + */ +err_t +mdns_domain_add_domain(struct mdns_domain *domain, struct mdns_domain *source) +{ + u16_t len = source->length; + if (len > 0 && (1 + len + domain->length >= MDNS_DOMAIN_MAXLEN)) { + return ERR_VAL; + } + /* Allow only zero marker on last byte */ + if (len == 0 && (1 + domain->length > MDNS_DOMAIN_MAXLEN)) { + return ERR_VAL; + } + if (len) { + /* Copy partial domain */ + MEMCPY(&domain->name[domain->length], source->name, len); + domain->length += len; + } else { + /* Add zero marker */ + domain->name[domain->length] = 0; + domain->length++; + } + return ERR_OK; +} + +/** + * Add a string domain to a domain + * @param domain The domain to add a label to + * @param source The string to add, like <_services._dns-sd> + * @return ERR_OK on success, an err_t otherwise if label too long + */ +err_t +mdns_domain_add_string(struct mdns_domain *domain, const char *source) +{ + u8_t *len = &domain->name[domain->length]; + u8_t *end = &domain->name[MDNS_DOMAIN_MAXLEN]; + u8_t *start = len + 1; + *len = 0; + while (*source && start < end) { + if (*source == '.') { + len = start++; + *len = 0; + source++; + } else { + *start++ = *source++; + *len = *len + 1; + } + } + if (start == end) { + return ERR_VAL; + } + domain->length = (u16_t)(start - &domain->name[0]); + return ERR_OK; +} + + +/** + * Internal readname function with max 6 levels of recursion following jumps + * while decompressing name + */ +static u16_t +mdns_readname_loop(struct pbuf *p, u16_t offset, struct mdns_domain *domain, unsigned depth) +{ + u8_t c; + + do { + if (depth > 5) { + /* Too many jumps */ + return MDNS_READNAME_ERROR; + } + + c = pbuf_get_at(p, offset); + offset++; + + /* is this a compressed label? */ + if ((c & 0xc0) == 0xc0) { + u16_t jumpaddr; + if (offset >= p->tot_len) { + /* Make sure both jump bytes fit in the packet */ + return MDNS_READNAME_ERROR; + } + jumpaddr = (((c & 0x3f) << 8) | (pbuf_get_at(p, offset) & 0xff)); + offset++; + if (jumpaddr >= SIZEOF_DNS_HDR && jumpaddr < p->tot_len) { + u16_t res; + /* Recursive call, maximum depth will be checked */ + res = mdns_readname_loop(p, jumpaddr, domain, depth + 1); + /* Don't return offset since new bytes were not read (jumped to somewhere in packet) */ + if (res == MDNS_READNAME_ERROR) { + return res; + } + } else { + return MDNS_READNAME_ERROR; + } + break; + } + + /* normal label */ + if (c <= MDNS_LABEL_MAXLEN) { + err_t res; + + if (c + domain->length >= MDNS_DOMAIN_MAXLEN) { + return MDNS_READNAME_ERROR; + } + res = mdns_domain_add_label_pbuf(domain, p, offset, c); + if (res != ERR_OK) { + return MDNS_READNAME_ERROR; + } + offset += c; + } else { + /* bad length byte */ + return MDNS_READNAME_ERROR; + } + } while (c != 0); + + return offset; +} + +/** + * Read possibly compressed domain name from packet buffer + * @param p The packet + * @param offset start position of domain name in packet + * @param domain The domain name destination + * @return The new offset after the domain, or MDNS_READNAME_ERROR + * if reading failed + */ +u16_t +mdns_readname(struct pbuf *p, u16_t offset, struct mdns_domain *domain) +{ + memset(domain, 0, sizeof(struct mdns_domain)); + return mdns_readname_loop(p, offset, domain, 0); +} + +/** + * Print domain name to debug output + * @param domain The domain name + */ +void +mdns_domain_debug_print(struct mdns_domain *domain) +{ + u8_t *src = domain->name; + u8_t i; + + while (*src) { + u8_t label_len = *src; + src++; + for (i = 0; i < label_len; i++) { + LWIP_DEBUGF(MDNS_DEBUG, ("%c", src[i])); + } + src += label_len; + LWIP_DEBUGF(MDNS_DEBUG, (".")); + } +} + +/** + * Return 1 if contents of domains match (case-insensitive) + * @param a Domain name to compare 1 + * @param b Domain name to compare 2 + * @return 1 if domains are equal ignoring case, 0 otherwise + */ +int +mdns_domain_eq(struct mdns_domain *a, struct mdns_domain *b) +{ + u8_t *ptra, *ptrb; + u8_t len; + int res; + + if (a->length != b->length) { + return 0; + } + + ptra = a->name; + ptrb = b->name; + while (*ptra && *ptrb && ptra < &a->name[a->length]) { + if (*ptra != *ptrb) { + return 0; + } + len = *ptra; + ptra++; + ptrb++; + res = lwip_strnicmp((char *) ptra, (char *) ptrb, len); + if (res != 0) { + return 0; + } + ptra += len; + ptrb += len; + } + if (*ptra != *ptrb && ptra < &a->name[a->length]) { + return 0; + } + return 1; +} + +#if LWIP_IPV4 +/** + * Build domain for reverse lookup of IPv4 address + * like 12.0.168.192.in-addr.arpa. for 192.168.0.12 + * @param domain Where to write the domain name + * @param addr Pointer to an IPv4 address to encode + * @return ERR_OK if domain was written, an err_t otherwise + */ +err_t +mdns_build_reverse_v4_domain(struct mdns_domain *domain, const ip4_addr_t *addr) +{ + int i; + err_t res; + const u8_t *ptr; +#if 0 /* Caused compiler warning. */ + LWIP_UNUSED_ARG(res); +#endif + if (!domain || !addr) { + return ERR_ARG; + } + memset(domain, 0, sizeof(struct mdns_domain)); + ptr = (const u8_t *) addr; + for (i = sizeof(ip4_addr_t) - 1; i >= 0; i--) { + char buf[4]; + u8_t val = ptr[i]; + + lwip_itoa(buf, sizeof(buf), val); + res = mdns_domain_add_label(domain, buf, (u8_t)strlen(buf)); + LWIP_ERROR("mdns_build_reverse_v4_domain: Failed to add label", (res == ERR_OK), return res); + } + res = mdns_domain_add_label(domain, REVERSE_PTR_V4_DOMAIN, (u8_t)(sizeof(REVERSE_PTR_V4_DOMAIN) - 1)); + LWIP_ERROR("mdns_build_reverse_v4_domain: Failed to add label", (res == ERR_OK), return res); + res = mdns_domain_add_label(domain, REVERSE_PTR_TOPDOMAIN, (u8_t)(sizeof(REVERSE_PTR_TOPDOMAIN) - 1)); + LWIP_ERROR("mdns_build_reverse_v4_domain: Failed to add label", (res == ERR_OK), return res); + res = mdns_domain_add_label(domain, NULL, 0); + LWIP_ERROR("mdns_build_reverse_v4_domain: Failed to add label", (res == ERR_OK), return res); + + return ERR_OK; +} +#endif + +#if LWIP_IPV6 +/** + * Build domain for reverse lookup of IP address + * like b.a.9.8.7.6.5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa. for 2001:db8::567:89ab + * @param domain Where to write the domain name + * @param addr Pointer to an IPv6 address to encode + * @return ERR_OK if domain was written, an err_t otherwise + */ +err_t +mdns_build_reverse_v6_domain(struct mdns_domain *domain, const ip6_addr_t *addr) +{ + int i; + err_t res; + const u8_t *ptr; +#if 0 /* Caused compiler warning. */ + LWIP_UNUSED_ARG(res); +#endif + if (!domain || !addr) { + return ERR_ARG; + } + memset(domain, 0, sizeof(struct mdns_domain)); + ptr = (const u8_t *) addr; + for (i = sizeof(ip6_addr_p_t) - 1; i >= 0; i--) { + char buf; + u8_t byte = ptr[i]; + int j; + for (j = 0; j < 2; j++) { + if ((byte & 0x0F) < 0xA) { + buf = '0' + (byte & 0x0F); + } else { + buf = 'a' + (byte & 0x0F) - 0xA; + } + res = mdns_domain_add_label(domain, &buf, sizeof(buf)); + LWIP_ERROR("mdns_build_reverse_v6_domain: Failed to add label", (res == ERR_OK), return res); + byte >>= 4; + } + } + res = mdns_domain_add_label(domain, REVERSE_PTR_V6_DOMAIN, (u8_t)(sizeof(REVERSE_PTR_V6_DOMAIN) - 1)); + LWIP_ERROR("mdns_build_reverse_v6_domain: Failed to add label", (res == ERR_OK), return res); + res = mdns_domain_add_label(domain, REVERSE_PTR_TOPDOMAIN, (u8_t)(sizeof(REVERSE_PTR_TOPDOMAIN) - 1)); + LWIP_ERROR("mdns_build_reverse_v6_domain: Failed to add label", (res == ERR_OK), return res); + res = mdns_domain_add_label(domain, NULL, 0); + LWIP_ERROR("mdns_build_reverse_v6_domain: Failed to add label", (res == ERR_OK), return res); + + return ERR_OK; +} +#endif + +/* Add .local. to domain */ +static err_t +mdns_add_dotlocal(struct mdns_domain *domain) +{ + err_t res = mdns_domain_add_label(domain, TOPDOMAIN_LOCAL, (u8_t)(sizeof(TOPDOMAIN_LOCAL) - 1)); + LWIP_UNUSED_ARG(res); + LWIP_ERROR("mdns_add_dotlocal: Failed to add label", (res == ERR_OK), return res); + return mdns_domain_add_label(domain, NULL, 0); +} + +/** + * Build the \.local. domain name + * @param domain Where to write the domain name + * @param mdns TMDNS netif descriptor. + * @return ERR_OK if domain \.local. was written, an err_t otherwise + */ +err_t +mdns_build_host_domain(struct mdns_domain *domain, struct mdns_host *mdns) +{ + err_t res; +#if 0 /* Caused compiler warning. */ + LWIP_UNUSED_ARG(res); +#endif + memset(domain, 0, sizeof(struct mdns_domain)); + LWIP_ERROR("mdns_build_host_domain: mdns != NULL", (mdns != NULL), return ERR_VAL); + res = mdns_domain_add_label(domain, mdns->name, (u8_t)strlen(mdns->name)); + LWIP_ERROR("mdns_build_host_domain: Failed to add label", (res == ERR_OK), return res); + return mdns_add_dotlocal(domain); +} + +/** + * Build the lookup-all-services special DNS-SD domain name + * @param domain Where to write the domain name + * @return ERR_OK if domain _services._dns-sd._udp.local. was written, an err_t otherwise + */ +err_t +mdns_build_dnssd_domain(struct mdns_domain *domain) +{ + err_t res; +#if 0 /* Caused compiler warning. */ + LWIP_UNUSED_ARG(res); +#endif + memset(domain, 0, sizeof(struct mdns_domain)); + res = mdns_domain_add_label(domain, "_services", (u8_t)(sizeof("_services") - 1)); + LWIP_ERROR("mdns_build_dnssd_domain: Failed to add label", (res == ERR_OK), return res); + res = mdns_domain_add_label(domain, "_dns-sd", (u8_t)(sizeof("_dns-sd") - 1)); + LWIP_ERROR("mdns_build_dnssd_domain: Failed to add label", (res == ERR_OK), return res); + res = mdns_domain_add_label(domain, dnssd_protos[DNSSD_PROTO_UDP], (u8_t)strlen(dnssd_protos[DNSSD_PROTO_UDP])); + LWIP_ERROR("mdns_build_dnssd_domain: Failed to add label", (res == ERR_OK), return res); + return mdns_add_dotlocal(domain); +} + +/** + * Build domain name for a service + * @param domain Where to write the domain name + * @param service The service struct, containing service name, type and protocol + * @param include_name Whether to include the service name in the domain + * @return ERR_OK if domain was written. If service name is included, + * \.\.\.local. will be written, otherwise \.\.local. + * An err_t is returned on error. + */ +err_t +mdns_build_service_domain(struct mdns_domain *domain, struct mdns_service *service, int include_name) +{ + err_t res; +#if 0 /* Caused compiler warning. */ + LWIP_UNUSED_ARG(res); +#endif + memset(domain, 0, sizeof(struct mdns_domain)); + if (include_name) { + res = mdns_domain_add_label(domain, service->name, (u8_t)strlen(service->name)); + LWIP_ERROR("mdns_build_service_domain: Failed to add label", (res == ERR_OK), return res); + } + res = mdns_domain_add_label(domain, service->service, (u8_t)strlen(service->service)); + LWIP_ERROR("mdns_build_service_domain: Failed to add label", (res == ERR_OK), return res); + res = mdns_domain_add_label(domain, dnssd_protos[service->proto], (u8_t)strlen(dnssd_protos[service->proto])); + LWIP_ERROR("mdns_build_service_domain: Failed to add label", (res == ERR_OK), return res); + return mdns_add_dotlocal(domain); +} + +#if LWIP_MDNS_SEARCH +/** + * Build domain name for a request + * @param domain Where to write the domain name + * @param request The request struct, containing service name, type and protocol + * @param include_name Whether to include the service name in the domain + * @return ERR_OK if domain was written. If service name is included, + * \.\.\.local. will be written, otherwise \.\.local. + * An err_t is returned on error. + */ +err_t +mdns_build_request_domain(struct mdns_domain *domain, struct mdns_request *request, int include_name) +{ + err_t res; + memset(domain, 0, sizeof(struct mdns_domain)); + if (include_name) { + res = mdns_domain_add_label(domain, request->name, (u8_t)strlen(request->name)); + LWIP_ERROR("mdns_build_request_domain: Failed to add label", (res == ERR_OK), return res); + } + res = mdns_domain_add_domain(domain, &request->service); + LWIP_ERROR("mdns_build_request_domain: Failed to add domain", (res == ERR_OK), return res); + res = mdns_domain_add_label(domain, dnssd_protos[request->proto], (u8_t)strlen(dnssd_protos[request->proto])); + LWIP_ERROR("mdns_build_request_domain: Failed to add label", (res == ERR_OK), return res); + return mdns_add_dotlocal(domain); +} +#endif + +/** + * Return bytes needed to write before jump for best result of compressing supplied domain + * against domain in outpacket starting at specified offset. + * If a match is found, offset is updated to where to jump to + * @param pbuf Pointer to pbuf with the partially constructed DNS packet + * @param offset Start position of a domain written earlier. If this location is suitable + * for compression, the pointer is updated to where in the domain to jump to. + * @param domain The domain to write + * @return Number of bytes to write of the new domain before writing a jump to the offset. + * If compression can not be done against this previous domain name, the full new + * domain length is returned. + */ +u16_t +mdns_compress_domain(struct pbuf *pbuf, u16_t *offset, struct mdns_domain *domain) +{ + struct mdns_domain target; + u16_t target_end; + u8_t target_len; + u8_t writelen = 0; + u8_t *ptr; + if (pbuf == NULL) { + return domain->length; + } + target_end = mdns_readname(pbuf, *offset, &target); + if (target_end == MDNS_READNAME_ERROR) { + return domain->length; + } + target_len = (u8_t)(target_end - *offset); + ptr = domain->name; + while (writelen < domain->length) { + u8_t domainlen = (u8_t)(domain->length - writelen); + u8_t labellen; + if (domainlen <= target.length && domainlen > DOMAIN_JUMP_SIZE) { + /* Compare domains if target is long enough, and we have enough left of the domain */ + u8_t targetpos = (u8_t)(target.length - domainlen); + if ((targetpos + DOMAIN_JUMP_SIZE) >= target_len) { + /* We are checking at or beyond a jump in the original, stop looking */ + break; + } + if (target.length >= domainlen && + memcmp(&domain->name[writelen], &target.name[targetpos], domainlen) == 0) { + *offset += targetpos; + return writelen; + } + } + /* Skip to next label in domain */ + labellen = *ptr; + writelen += 1 + labellen; + ptr += 1 + labellen; + } + /* Nothing found */ + return domain->length; +} + +/** + * Write domain to outpacket. Compression will be attempted, + * unless domain->skip_compression is set. + * @param outpkt The outpacket to write to + * @param domain The domain name to write + * @return ERR_OK on success, an err_t otherwise + */ +err_t +mdns_write_domain(struct mdns_outpacket *outpkt, struct mdns_domain *domain) +{ + int i; + err_t res; + u16_t writelen = domain->length; + u16_t jump_offset = 0; + u16_t jump; + + if (!domain->skip_compression) { + for (i = 0; i < NUM_DOMAIN_OFFSETS; i++) { + u16_t offset = outpkt->domain_offsets[i]; + if (offset) { + u16_t len = mdns_compress_domain(outpkt->pbuf, &offset, domain); + if (len < writelen) { + writelen = len; + jump_offset = offset; + } + } + } + } + + if (writelen) { + /* Write uncompressed part of name */ + res = pbuf_take_at(outpkt->pbuf, domain->name, writelen, outpkt->write_offset); + if (res != ERR_OK) { + return res; + } + + /* Store offset of this new domain */ + for (i = 0; i < NUM_DOMAIN_OFFSETS; i++) { + if (outpkt->domain_offsets[i] == 0) { + outpkt->domain_offsets[i] = outpkt->write_offset; + break; + } + } + + outpkt->write_offset += writelen; + } + if (jump_offset) { + /* Write jump */ + jump = lwip_htons(DOMAIN_JUMP | jump_offset); + res = pbuf_take_at(outpkt->pbuf, &jump, DOMAIN_JUMP_SIZE, outpkt->write_offset); + if (res != ERR_OK) { + return res; + } + outpkt->write_offset += DOMAIN_JUMP_SIZE; + } + return ERR_OK; +} + +#endif /* LWIP_MDNS_RESPONDER */ diff --git a/middleware/lwip/src/apps/mdns/mdns_out.c b/middleware/lwip/src/apps/mdns/mdns_out.c new file mode 100644 index 0000000..5c6d26b --- /dev/null +++ b/middleware/lwip/src/apps/mdns/mdns_out.c @@ -0,0 +1,1163 @@ +/** + * @file + * MDNS responder implementation - output related functionalities + */ + +/* + * Copyright (c) 2015 Verisure Innovation AB + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Author: Jasper Verschueren + * + */ + +#include "lwip/apps/mdns_out.h" +#include "lwip/apps/mdns_priv.h" +#include "lwip/apps/mdns_domain.h" +#include "lwip/prot/dns.h" +#include "lwip/prot/iana.h" +#include "lwip/udp.h" + +#include + +#if LWIP_IPV6 +#include "lwip/prot/ip6.h" +#endif + + +#if LWIP_MDNS_RESPONDER + +/* Function prototypes */ +static void mdns_clear_outmsg(struct mdns_outmsg *outmsg); + +/** + * Call user supplied function to setup TXT data + * @param service The service to build TXT record for + */ +void +mdns_prepare_txtdata(struct mdns_service *service) +{ + memset(&service->txtdata, 0, sizeof(struct mdns_domain)); + if (service->txt_fn) { + service->txt_fn(service, service->txt_userdata); + } +} + +/** + * Write a question to an outpacket + * A question contains domain, type and class. Since an answer also starts with these fields this function is also + * called from mdns_add_answer(). + * @param outpkt The outpacket to write to + * @param domain The domain name the answer is for + * @param type The DNS type of the answer (like 'AAAA', 'SRV') + * @param klass The DNS type of the answer (like 'IN') + * @param unicast If highest bit in class should be set, to instruct the responder to + * reply with a unicast packet + * @return ERR_OK on success, an err_t otherwise + */ +static err_t +mdns_add_question(struct mdns_outpacket *outpkt, struct mdns_domain *domain, + u16_t type, u16_t klass, u16_t unicast) +{ + u16_t question_len; + u16_t field16; + err_t res; + + if (!outpkt->pbuf) { + /* If no pbuf is active, allocate one */ + outpkt->pbuf = pbuf_alloc(PBUF_TRANSPORT, MDNS_OUTPUT_PACKET_SIZE, PBUF_RAM); + if (!outpkt->pbuf) { + return ERR_MEM; + } + outpkt->write_offset = SIZEOF_DNS_HDR; + } + + /* Worst case calculation. Domain string might be compressed */ + question_len = domain->length + sizeof(type) + sizeof(klass); + if (outpkt->write_offset + question_len > outpkt->pbuf->tot_len) { + /* No space */ + return ERR_MEM; + } + + /* Write name */ + res = mdns_write_domain(outpkt, domain); + if (res != ERR_OK) { + return res; + } + + /* Write type */ + field16 = lwip_htons(type); + res = pbuf_take_at(outpkt->pbuf, &field16, sizeof(field16), outpkt->write_offset); + if (res != ERR_OK) { + return res; + } + outpkt->write_offset += sizeof(field16); + + /* Write class */ + if (unicast) { + klass |= 0x8000; + } + field16 = lwip_htons(klass); + res = pbuf_take_at(outpkt->pbuf, &field16, sizeof(field16), outpkt->write_offset); + if (res != ERR_OK) { + return res; + } + outpkt->write_offset += sizeof(field16); + + return ERR_OK; +} + +/** + * Write answer to reply packet. + * buf or answer_domain can be null. The rd_length written will be buf_length + + * size of (compressed) domain. Most uses will need either buf or answer_domain, + * special case is SRV that starts with 3 u16 and then a domain name. + * @param reply The outpacket to write to + * @param domain The domain name the answer is for + * @param type The DNS type of the answer (like 'AAAA', 'SRV') + * @param klass The DNS type of the answer (like 'IN') + * @param cache_flush If highest bit in class should be set, to instruct receiver that + * this reply replaces any earlier answer for this domain/type/class + * @param ttl Validity time in seconds to send out for IP address data in DNS replies + * @param buf Pointer to buffer of answer data + * @param buf_length Length of variable data + * @param answer_domain A domain to write after any buffer data as answer + * @return ERR_OK on success, an err_t otherwise + */ +static err_t +mdns_add_answer(struct mdns_outpacket *reply, struct mdns_domain *domain, + u16_t type, u16_t klass, u16_t cache_flush, u32_t ttl, + const u8_t *buf, size_t buf_length, struct mdns_domain *answer_domain) +{ + u16_t answer_len; + u16_t field16; + u16_t rdlen_offset; + u16_t answer_offset; + u32_t field32; + err_t res; + + if (!reply->pbuf) { + /* If no pbuf is active, allocate one */ + reply->pbuf = pbuf_alloc(PBUF_TRANSPORT, MDNS_OUTPUT_PACKET_SIZE, PBUF_RAM); + if (!reply->pbuf) { + return ERR_MEM; + } + reply->write_offset = SIZEOF_DNS_HDR; + } + + /* Worst case calculation. Domain strings might be compressed */ + answer_len = domain->length + sizeof(type) + sizeof(klass) + sizeof(ttl) + sizeof(field16)/*rd_length*/; + if (buf) { + answer_len += (u16_t)buf_length; + } + if (answer_domain) { + answer_len += answer_domain->length; + } + if (reply->write_offset + answer_len > reply->pbuf->tot_len) { + /* No space */ + return ERR_MEM; + } + + /* Answer starts with same data as question, then more fields */ + mdns_add_question(reply, domain, type, klass, cache_flush); + + /* Write TTL */ + field32 = lwip_htonl(ttl); + res = pbuf_take_at(reply->pbuf, &field32, sizeof(field32), reply->write_offset); + if (res != ERR_OK) { + return res; + } + reply->write_offset += sizeof(field32); + + /* Store offsets and skip forward to the data */ + rdlen_offset = reply->write_offset; + reply->write_offset += sizeof(field16); + answer_offset = reply->write_offset; + + if (buf) { + /* Write static data */ + res = pbuf_take_at(reply->pbuf, buf, (u16_t)buf_length, reply->write_offset); + if (res != ERR_OK) { + return res; + } + reply->write_offset += (u16_t)buf_length; + } + + if (answer_domain) { + /* Write name answer (compressed if possible) */ + res = mdns_write_domain(reply, answer_domain); + if (res != ERR_OK) { + return res; + } + } + + /* Write rd_length after when we know the answer size */ + field16 = lwip_htons(reply->write_offset - answer_offset); + res = pbuf_take_at(reply->pbuf, &field16, sizeof(field16), rdlen_offset); + + return res; +} + +/** Write an ANY host question to outpacket */ +static err_t +mdns_add_any_host_question(struct mdns_outpacket *outpkt, + struct mdns_host *mdns, + u16_t request_unicast_reply) +{ + struct mdns_domain host; + mdns_build_host_domain(&host, mdns); + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Adding host question for ANY type\n")); + return mdns_add_question(outpkt, &host, DNS_RRTYPE_ANY, DNS_RRCLASS_IN, + request_unicast_reply); +} + +/** Write an ANY service instance question to outpacket */ +static err_t +mdns_add_any_service_question(struct mdns_outpacket *outpkt, + struct mdns_service *service, + u16_t request_unicast_reply) +{ + struct mdns_domain domain; + mdns_build_service_domain(&domain, service, 1); + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Adding service instance question for ANY type\n")); + return mdns_add_question(outpkt, &domain, DNS_RRTYPE_ANY, DNS_RRCLASS_IN, + request_unicast_reply); +} + +#if LWIP_IPV4 +/** Write an IPv4 address (A) RR to outpacket */ +static err_t +mdns_add_a_answer(struct mdns_outpacket *reply, struct mdns_outmsg *msg, + struct netif *netif) +{ + err_t res; + u32_t ttl = MDNS_TTL_120; + struct mdns_domain host; + mdns_build_host_domain(&host, netif_mdns_data(netif)); + /* When answering to a legacy querier, we need to repeat the question and + * limit the ttl to the short legacy ttl */ + if(msg->legacy_query) { + /* Repeating the question only needs to be done for the question asked + * (max one question), not for the additional records. */ + if(reply->questions < 1) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Add question for legacy query\n")); + res = mdns_add_question(reply, &host, DNS_RRTYPE_A, DNS_RRCLASS_IN, 0); + if (res != ERR_OK) { + return res; + } + reply->questions = 1; + } + /* ttl of legacy answer may not be greater then 10 seconds */ + ttl = MDNS_TTL_10; + } + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Responding with A record\n")); + return mdns_add_answer(reply, &host, DNS_RRTYPE_A, DNS_RRCLASS_IN, msg->cache_flush, + ttl, (const u8_t *) netif_ip4_addr(netif), + sizeof(ip4_addr_t), NULL); +} + +/** Write a 4.3.2.1.in-addr.arpa -> hostname.local PTR RR to outpacket */ +static err_t +mdns_add_hostv4_ptr_answer(struct mdns_outpacket *reply, struct mdns_outmsg *msg, + struct netif *netif) +{ + err_t res; + u32_t ttl = MDNS_TTL_120; + struct mdns_domain host, revhost; + mdns_build_host_domain(&host, netif_mdns_data(netif)); + mdns_build_reverse_v4_domain(&revhost, netif_ip4_addr(netif)); + /* When answering to a legacy querier, we need to repeat the question and + * limit the ttl to the short legacy ttl */ + if(msg->legacy_query) { + /* Repeating the question only needs to be done for the question asked + * (max one question), not for the additional records. */ + if(reply->questions < 1) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Add question for legacy query\n")); + res = mdns_add_question(reply, &revhost, DNS_RRTYPE_PTR, DNS_RRCLASS_IN, 0); + if (res != ERR_OK) { + return res; + } + reply->questions = 1; + } + /* ttl of legacy answer may not be greater then 10 seconds */ + ttl = MDNS_TTL_10; + } + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Responding with v4 PTR record\n")); + return mdns_add_answer(reply, &revhost, DNS_RRTYPE_PTR, DNS_RRCLASS_IN, + msg->cache_flush, ttl, NULL, 0, &host); +} +#endif + +#if LWIP_IPV6 +/** Write an IPv6 address (AAAA) RR to outpacket */ +static err_t +mdns_add_aaaa_answer(struct mdns_outpacket *reply, struct mdns_outmsg *msg, + struct netif *netif, int addrindex) +{ + err_t res; + u32_t ttl = MDNS_TTL_120; + struct mdns_domain host; + mdns_build_host_domain(&host, netif_mdns_data(netif)); + /* When answering to a legacy querier, we need to repeat the question and + * limit the ttl to the short legacy ttl */ + if(msg->legacy_query) { + /* Repeating the question only needs to be done for the question asked + * (max one question), not for the additional records. */ + if(reply->questions < 1) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Add question for legacy query\n")); + res = mdns_add_question(reply, &host, DNS_RRTYPE_AAAA, DNS_RRCLASS_IN, 0); + if (res != ERR_OK) { + return res; + } + reply->questions = 1; + } + /* ttl of legacy answer may not be greater then 10 seconds */ + ttl = MDNS_TTL_10; + } + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Responding with AAAA record\n")); + return mdns_add_answer(reply, &host, DNS_RRTYPE_AAAA, DNS_RRCLASS_IN, msg->cache_flush, + ttl, (const u8_t *) netif_ip6_addr(netif, addrindex), + sizeof(ip6_addr_p_t), NULL); +} + +/** Write a x.y.z.ip6.arpa -> hostname.local PTR RR to outpacket */ +static err_t +mdns_add_hostv6_ptr_answer(struct mdns_outpacket *reply, struct mdns_outmsg *msg, + struct netif *netif, int addrindex) +{ + err_t res; + u32_t ttl = MDNS_TTL_120; + struct mdns_domain host, revhost; + mdns_build_host_domain(&host, netif_mdns_data(netif)); + mdns_build_reverse_v6_domain(&revhost, netif_ip6_addr(netif, addrindex)); + /* When answering to a legacy querier, we need to repeat the question and + * limit the ttl to the short legacy ttl */ + if(msg->legacy_query) { + /* Repeating the question only needs to be done for the question asked + * (max one question), not for the additional records. */ + if(reply->questions < 1) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Add question for legacy query\n")); + res = mdns_add_question(reply, &revhost, DNS_RRTYPE_PTR, DNS_RRCLASS_IN, 0); + if (res != ERR_OK) { + return res; + } + reply->questions = 1; + } + /* ttl of legacy answer may not be greater then 10 seconds */ + ttl = MDNS_TTL_10; + } + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Responding with v6 PTR record\n")); + return mdns_add_answer(reply, &revhost, DNS_RRTYPE_PTR, DNS_RRCLASS_IN, + msg->cache_flush, ttl, NULL, 0, &host); +} +#endif + +/** Write an all-services -> servicetype PTR RR to outpacket */ +static err_t +mdns_add_servicetype_ptr_answer(struct mdns_outpacket *reply, struct mdns_outmsg *msg, + struct mdns_service *service) +{ + err_t res; + u32_t ttl = MDNS_TTL_4500; + struct mdns_domain service_type, service_dnssd; + mdns_build_service_domain(&service_type, service, 0); + mdns_build_dnssd_domain(&service_dnssd); + /* When answering to a legacy querier, we need to repeat the question and + * limit the ttl to the short legacy ttl */ + if(msg->legacy_query) { + /* Repeating the question only needs to be done for the question asked + * (max one question), not for the additional records. */ + if(reply->questions < 1) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Add question for legacy query\n")); + res = mdns_add_question(reply, &service_dnssd, DNS_RRTYPE_PTR, DNS_RRCLASS_IN, 0); + if (res != ERR_OK) { + return res; + } + reply->questions = 1; + } + /* ttl of legacy answer may not be greater then 10 seconds */ + ttl = MDNS_TTL_10; + } + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Responding with service type PTR record\n")); + return mdns_add_answer(reply, &service_dnssd, DNS_RRTYPE_PTR, DNS_RRCLASS_IN, + 0, ttl, NULL, 0, &service_type); +} + +/** Write a servicetype -> servicename PTR RR to outpacket */ +static err_t +mdns_add_servicename_ptr_answer(struct mdns_outpacket *reply, struct mdns_outmsg *msg, + struct mdns_service *service) +{ + err_t res; + u32_t ttl = MDNS_TTL_120; + struct mdns_domain service_type, service_instance; + mdns_build_service_domain(&service_type, service, 0); + mdns_build_service_domain(&service_instance, service, 1); + /* When answering to a legacy querier, we need to repeat the question and + * limit the ttl to the short legacy ttl */ + if(msg->legacy_query) { + /* Repeating the question only needs to be done for the question asked + * (max one question), not for the additional records. */ + if(reply->questions < 1) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Add question for legacy query\n")); + res = mdns_add_question(reply, &service_type, DNS_RRTYPE_PTR, DNS_RRCLASS_IN, 0); + if (res != ERR_OK) { + return res; + } + reply->questions = 1; + } + /* ttl of legacy answer may not be greater then 10 seconds */ + ttl = MDNS_TTL_10; + } + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Responding with service name PTR record\n")); + return mdns_add_answer(reply, &service_type, DNS_RRTYPE_PTR, DNS_RRCLASS_IN, + 0, ttl, NULL, 0, &service_instance); +} + +/** Write a SRV RR to outpacket */ +static err_t +mdns_add_srv_answer(struct mdns_outpacket *reply, struct mdns_outmsg *msg, + struct mdns_host *mdns, struct mdns_service *service) +{ + err_t res; + u32_t ttl = MDNS_TTL_120; + struct mdns_domain service_instance, srvhost; + u16_t srvdata[3]; + mdns_build_service_domain(&service_instance, service, 1); + mdns_build_host_domain(&srvhost, mdns); + if (msg->legacy_query) { + /* RFC 6762 section 18.14: + * In legacy unicast responses generated to answer legacy queries, + * name compression MUST NOT be performed on SRV records. + */ + srvhost.skip_compression = 1; + /* When answering to a legacy querier, we need to repeat the question and + * limit the ttl to the short legacy ttl. + * Repeating the question only needs to be done for the question asked + * (max one question), not for the additional records. */ + if(reply->questions < 1) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Add question for legacy query\n")); + res = mdns_add_question(reply, &service_instance, DNS_RRTYPE_SRV, DNS_RRCLASS_IN, 0); + if (res != ERR_OK) { + return res; + } + reply->questions = 1; + } + /* ttl of legacy answer may not be greater then 10 seconds */ + ttl = MDNS_TTL_10; + } + srvdata[0] = lwip_htons(SRV_PRIORITY); + srvdata[1] = lwip_htons(SRV_WEIGHT); + srvdata[2] = lwip_htons(service->port); + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Responding with SRV record\n")); + return mdns_add_answer(reply, &service_instance, DNS_RRTYPE_SRV, DNS_RRCLASS_IN, + msg->cache_flush, ttl, + (const u8_t *) &srvdata, sizeof(srvdata), &srvhost); +} + +/** Write a TXT RR to outpacket */ +static err_t +mdns_add_txt_answer(struct mdns_outpacket *reply, struct mdns_outmsg *msg, + struct mdns_service *service) +{ + err_t res; + u32_t ttl = MDNS_TTL_120; + struct mdns_domain service_instance; + mdns_build_service_domain(&service_instance, service, 1); + mdns_prepare_txtdata(service); + /* When answering to a legacy querier, we need to repeat the question and + * limit the ttl to the short legacy ttl */ + if(msg->legacy_query) { + /* Repeating the question only needs to be done for the question asked + * (max one question), not for the additional records. */ + if(reply->questions < 1) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Add question for legacy query\n")); + res = mdns_add_question(reply, &service_instance, DNS_RRTYPE_TXT, DNS_RRCLASS_IN, 0); + if (res != ERR_OK) { + return res; + } + reply->questions = 1; + } + /* ttl of legacy answer may not be greater then 10 seconds */ + ttl = MDNS_TTL_10; + } + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Responding with TXT record\n")); + return mdns_add_answer(reply, &service_instance, DNS_RRTYPE_TXT, DNS_RRCLASS_IN, + msg->cache_flush, ttl, (u8_t *) &service->txtdata.name, + service->txtdata.length, NULL); +} + + +static err_t +mdns_add_probe_questions_to_outpacket(struct mdns_outpacket *outpkt, struct mdns_outmsg *msg, + struct netif *netif) +{ + err_t res; + int i; + struct mdns_host *mdns = netif_mdns_data(netif); + + /* Write host questions (probing or legacy query) */ + if(msg->host_questions & QUESTION_PROBE_HOST_ANY) { + res = mdns_add_any_host_question(outpkt, mdns, 1); + if (res != ERR_OK) { + return res; + } + outpkt->questions++; + } + /* Write service questions (probing or legacy query) */ + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + struct mdns_service* service = mdns->services[i]; + if (!service) { + continue; + } + if(msg->serv_questions[i] & QUESTION_PROBE_SERVICE_NAME_ANY) { + res = mdns_add_any_service_question(outpkt, service, 1); + if (res != ERR_OK) { + return res; + } + outpkt->questions++; + } + } + return ERR_OK; +} + +#if LWIP_MDNS_SEARCH +static err_t +mdns_add_query_question_to_outpacket(struct mdns_outpacket *outpkt, struct mdns_outmsg *msg) +{ + err_t res; + /* Write legacy query question */ + if(msg->query) { + struct mdns_request *req = msg->query; + struct mdns_domain dom; + /* Build question domain */ + mdns_build_request_domain(&dom, req, req->name[0]); + /* Add query question to output packet */ + res = mdns_add_question(outpkt, &dom, req->qtype, DNS_RRCLASS_IN, 0); + if (res != ERR_OK) { + return res; + } + outpkt->questions++; + } + return ERR_OK; +} +#endif + +/** + * Create packet with chosen answers as a reply + * + * Add all selected answers / questions + * Add additional answers based on the selected answers + */ +err_t +mdns_create_outpacket(struct netif *netif, struct mdns_outmsg *msg, + struct mdns_outpacket *outpkt) +{ + struct mdns_host *mdns = netif_mdns_data(netif); + struct mdns_service *service; + err_t res; + int i; + u16_t answers = 0; + +#if LWIP_MDNS_SEARCH + res = mdns_add_query_question_to_outpacket(outpkt, msg); + if (res != ERR_OK) { + return res; + } +#endif + + res = mdns_add_probe_questions_to_outpacket(outpkt, msg, netif); + if (res != ERR_OK) { + return res; + } + + /* Write answers to host questions */ +#if LWIP_IPV4 + if (msg->host_replies & REPLY_HOST_A) { + res = mdns_add_a_answer(outpkt, msg, netif); + if (res != ERR_OK) { + return res; + } + answers++; + } + if (msg->host_replies & REPLY_HOST_PTR_V4) { + res = mdns_add_hostv4_ptr_answer(outpkt, msg, netif); + if (res != ERR_OK) { + return res; + } + answers++; + } +#endif +#if LWIP_IPV6 + if (msg->host_replies & REPLY_HOST_AAAA) { + int addrindex; + for (addrindex = 0; addrindex < LWIP_IPV6_NUM_ADDRESSES; addrindex++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, addrindex))) { + res = mdns_add_aaaa_answer(outpkt, msg, netif, addrindex); + if (res != ERR_OK) { + return res; + } + answers++; + } + } + } + if (msg->host_replies & REPLY_HOST_PTR_V6) { + u8_t rev_addrs = msg->host_reverse_v6_replies; + int addrindex = 0; + while (rev_addrs) { + if (rev_addrs & 1) { + res = mdns_add_hostv6_ptr_answer(outpkt, msg, netif, addrindex); + if (res != ERR_OK) { + return res; + } + answers++; + } + addrindex++; + rev_addrs >>= 1; + } + } +#endif + + /* Write answers to service questions */ + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + service = mdns->services[i]; + if (!service) { + continue; + } + + if (msg->serv_replies[i] & REPLY_SERVICE_TYPE_PTR) { + res = mdns_add_servicetype_ptr_answer(outpkt, msg, service); + if (res != ERR_OK) { + return res; + } + answers++; + } + + if (msg->serv_replies[i] & REPLY_SERVICE_NAME_PTR) { + res = mdns_add_servicename_ptr_answer(outpkt, msg, service); + if (res != ERR_OK) { + return res; + } + answers++; + } + + if (msg->serv_replies[i] & REPLY_SERVICE_SRV) { + res = mdns_add_srv_answer(outpkt, msg, mdns, service); + if (res != ERR_OK) { + return res; + } + answers++; + } + + if (msg->serv_replies[i] & REPLY_SERVICE_TXT) { + res = mdns_add_txt_answer(outpkt, msg, service); + if (res != ERR_OK) { + return res; + } + answers++; + } + } + + /* if this is a response, the data above is anwers, else this is a probe and + * the answers above goes into auth section */ + if (msg->flags & DNS_FLAG1_RESPONSE) { + outpkt->answers += answers; + } else { + outpkt->authoritative += answers; + } + + /* All answers written, add additional RRs */ + for (i = 0; i < MDNS_MAX_SERVICES; i++) { + service = mdns->services[i]; + if (!service) { + continue; + } + + if (msg->serv_replies[i] & REPLY_SERVICE_NAME_PTR) { + /* Our service instance requested, include SRV & TXT + * if they are already not requested. */ + if (!(msg->serv_replies[i] & REPLY_SERVICE_SRV)) { + res = mdns_add_srv_answer(outpkt, msg, mdns, service); + if (res != ERR_OK) { + return res; + } + outpkt->additional++; + } + + if (!(msg->serv_replies[i] & REPLY_SERVICE_TXT)) { + res = mdns_add_txt_answer(outpkt, msg, service); + if (res != ERR_OK) { + return res; + } + outpkt->additional++; + } + } + + /* If service instance, SRV, record or an IP address is requested, + * supply all addresses for the host + */ + if ((msg->serv_replies[i] & (REPLY_SERVICE_NAME_PTR | REPLY_SERVICE_SRV)) || + (msg->host_replies & (REPLY_HOST_A | REPLY_HOST_AAAA))) { +#if LWIP_IPV6 + if (!(msg->host_replies & REPLY_HOST_AAAA)) { + int addrindex; + for (addrindex = 0; addrindex < LWIP_IPV6_NUM_ADDRESSES; addrindex++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, addrindex))) { + res = mdns_add_aaaa_answer(outpkt, msg, netif, addrindex); + if (res != ERR_OK) { + return res; + } + outpkt->additional++; + } + } + } +#endif +#if LWIP_IPV4 + if (!(msg->host_replies & REPLY_HOST_A) && + !ip4_addr_isany_val(*netif_ip4_addr(netif))) { + res = mdns_add_a_answer(outpkt, msg, netif); + if (res != ERR_OK) { + return res; + } + outpkt->additional++; + } +#endif + } + } + + return res; +} + +/** + * Send chosen answers as a reply + * + * Create the packet + * Send the packet + */ +err_t +mdns_send_outpacket(struct mdns_outmsg *msg, struct netif *netif) +{ + struct mdns_outpacket outpkt; + err_t res; + + memset(&outpkt, 0, sizeof(outpkt)); + + res = mdns_create_outpacket(netif, msg, &outpkt); + if (res != ERR_OK) { + goto cleanup; + } + + if (outpkt.pbuf) { + struct dns_hdr hdr; + + /* Write header */ + memset(&hdr, 0, sizeof(hdr)); + hdr.flags1 = msg->flags; + hdr.numquestions = lwip_htons(outpkt.questions); + hdr.numanswers = lwip_htons(outpkt.answers); + hdr.numauthrr = lwip_htons(outpkt.authoritative); + hdr.numextrarr = lwip_htons(outpkt.additional); + hdr.id = lwip_htons(msg->tx_id); + pbuf_take(outpkt.pbuf, &hdr, sizeof(hdr)); + + /* Shrink packet */ + pbuf_realloc(outpkt.pbuf, outpkt.write_offset); + + /* Send created packet */ + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Sending packet, len=%d\n", + outpkt.write_offset)); + + res = udp_sendto_if(get_mdns_pcb(), outpkt.pbuf, &msg->dest_addr, msg->dest_port, netif); + } + +cleanup: + if (outpkt.pbuf) { + pbuf_free(outpkt.pbuf); + outpkt.pbuf = NULL; + } + return res; +} + +#if LWIP_IPV4 +/** + * Called by timeouts when timer is passed, allows multicast IPv4 traffic again. + * + * @param arg pointer to netif of timeout. + */ +void +mdns_multicast_timeout_reset_ipv4(void *arg) +{ + struct netif *netif = (struct netif*)arg; + struct mdns_host *mdns = netif_mdns_data(netif); + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast timeout finished - IPv4\n")); + + mdns->ipv4.multicast_timeout = 0; +} + +/** + * Called by timeouts when timer is passed, allows direct multicast IPv4 probe + * response traffic again and sends out probe response if one was pending + * + * @param arg pointer to netif of timeout. + */ +void +mdns_multicast_probe_timeout_reset_ipv4(void *arg) +{ + struct netif *netif = (struct netif*)arg; + struct mdns_host *mdns = netif_mdns_data(netif); + err_t res; + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast probe timeout finished - IPv4\n")); + + mdns->ipv4.multicast_probe_timeout = 0; + + if (mdns->ipv4.multicast_msg_waiting) { + res = mdns_send_outpacket(&mdns->ipv4.delayed_msg_multicast, netif); + if(res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Waiting probe multicast send failed - IPv4\n")); + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Waiting probe multicast send successful - IPv4\n")); + mdns_clear_outmsg(&mdns->ipv4.delayed_msg_multicast); + mdns->ipv4.multicast_msg_waiting = 0; + mdns_start_multicast_timeouts_ipv4(netif); + } + } +} + +/** + * Called by timeouts when timer is passed, allows to send an answer on a QU + * question via multicast. + * + * @param arg pointer to netif of timeout. + */ +void +mdns_multicast_timeout_25ttl_reset_ipv4(void *arg) +{ + struct netif *netif = (struct netif*)arg; + struct mdns_host *mdns = netif_mdns_data(netif); + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast timeout 1/4 of ttl finished - IPv4\n")); + + mdns->ipv4.multicast_timeout_25TTL = 0; +} + +/** + * Called by timeouts when timer is passed, sends out delayed multicast IPv4 response. + * + * @param arg pointer to netif of timeout. + */ +void +mdns_send_multicast_msg_delayed_ipv4(void *arg) +{ + struct netif *netif = (struct netif*)arg; + struct mdns_host *mdns = netif_mdns_data(netif); + err_t res; + + res = mdns_send_outpacket(&mdns->ipv4.delayed_msg_multicast, netif); + if(res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Delayed multicast send failed - IPv4\n")); + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Delayed multicast send successful - IPv4\n")); + mdns_clear_outmsg(&mdns->ipv4.delayed_msg_multicast); + mdns->ipv4.multicast_msg_waiting = 0; + mdns_start_multicast_timeouts_ipv4(netif); + } +} + +/** + * Called by timeouts when timer is passed, sends out delayed unicast IPv4 response. + * + * @param arg pointer to netif of timeout. + */ +void +mdns_send_unicast_msg_delayed_ipv4(void *arg) +{ + struct netif *netif = (struct netif*)arg; + struct mdns_host *mdns = netif_mdns_data(netif); + err_t res; + + res = mdns_send_outpacket(&mdns->ipv4.delayed_msg_unicast, netif); + if(res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Delayed unicast send failed - IPv4\n")); + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Delayed unicast send successful - IPv4\n")); + mdns_clear_outmsg(&mdns->ipv4.delayed_msg_unicast); + mdns->ipv4.unicast_msg_in_use = 0; + } +} + +/** Start all multicast timeouts for IPv4 + * Timeouts started: + * - do not multicast within one second + * - do not multicast a probe response within 250ms + * - send a multicast answer on a QU question if not send recently. + * + * @param netif network interface to start timeouts on + */ +void +mdns_start_multicast_timeouts_ipv4(struct netif *netif) +{ + struct mdns_host *mdns = netif_mdns_data(netif); + + mdns_set_timeout(netif, MDNS_MULTICAST_TIMEOUT, mdns_multicast_timeout_reset_ipv4, + &mdns->ipv4.multicast_timeout); + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast timeout started - IPv4\n")); + mdns_set_timeout(netif, MDNS_MULTICAST_PROBE_TIMEOUT, mdns_multicast_probe_timeout_reset_ipv4, + &mdns->ipv4.multicast_probe_timeout); + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast probe timeout started - IPv4\n")); + mdns_set_timeout(netif, MDNS_MULTICAST_TIMEOUT_25TTL, mdns_multicast_timeout_25ttl_reset_ipv4, + &mdns->ipv4.multicast_timeout_25TTL); + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast timeout 1/4 of ttl started - IPv4\n")); +} +#endif + +#if LWIP_IPV6 +/** + * Called by timeouts when timer is passed, allows multicast IPv6 traffic again. + * + * @param arg pointer to netif of timeout. + */ +void +mdns_multicast_timeout_reset_ipv6(void *arg) +{ + struct netif *netif = (struct netif*)arg; + struct mdns_host *mdns = netif_mdns_data(netif); + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast timeout finished - IPv6\n")); + + mdns->ipv6.multicast_timeout = 0; +} + +/** + * Called by timeouts when timer is passed, allows direct multicast IPv6 probe + * response traffic again and sends out probe response if one was pending + * + * @param arg pointer to netif of timeout. + */ +void +mdns_multicast_probe_timeout_reset_ipv6(void *arg) +{ + struct netif *netif = (struct netif*)arg; + struct mdns_host *mdns = netif_mdns_data(netif); + err_t res; + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast probe timeout finished - IPv6\n")); + + mdns->ipv6.multicast_probe_timeout = 0; + + if (mdns->ipv6.multicast_msg_waiting) { + res = mdns_send_outpacket(&mdns->ipv6.delayed_msg_multicast, netif); + if(res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Waiting probe multicast send failed - IPv6\n")); + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Waiting probe multicast send successful - IPv6\n")); + mdns_clear_outmsg(&mdns->ipv6.delayed_msg_multicast); + mdns->ipv6.multicast_msg_waiting = 0; + mdns_start_multicast_timeouts_ipv6(netif); + } + } +} + +/** + * Called by timeouts when timer is passed, allows to send an answer on a QU + * question via multicast. + * + * @param arg pointer to netif of timeout. + */ +void +mdns_multicast_timeout_25ttl_reset_ipv6(void *arg) +{ + struct netif *netif = (struct netif*)arg; + struct mdns_host *mdns = netif_mdns_data(netif); + + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast timeout 1/4 of ttl finished - IPv6\n")); + + mdns->ipv6.multicast_timeout_25TTL = 0; +} + +/** + * Called by timeouts when timer is passed, sends out delayed multicast IPv6 response. + * + * @param arg pointer to netif of timeout. + */ +void +mdns_send_multicast_msg_delayed_ipv6(void *arg) +{ + struct netif *netif = (struct netif*)arg; + struct mdns_host *mdns = netif_mdns_data(netif); + err_t res; + + res = mdns_send_outpacket(&mdns->ipv6.delayed_msg_multicast, netif); + if(res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Delayed multicast send failed - IPv6\n")); + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Delayed multicast send successful - IPv6\n")); + mdns_clear_outmsg(&mdns->ipv6.delayed_msg_multicast); + mdns->ipv6.multicast_msg_waiting = 0; + mdns_start_multicast_timeouts_ipv6(netif); + } +} + +/** + * Called by timeouts when timer is passed, sends out delayed unicast IPv6 response. + * + * @param arg pointer to netif of timeout. + */ +void +mdns_send_unicast_msg_delayed_ipv6(void *arg) +{ + struct netif *netif = (struct netif*)arg; + struct mdns_host *mdns = netif_mdns_data(netif); + err_t res; + + res = mdns_send_outpacket(&mdns->ipv6.delayed_msg_unicast, netif); + if(res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Delayed unicast send failed - IPv6\n")); + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Delayed unicast send successful - IPv6\n")); + mdns_clear_outmsg(&mdns->ipv6.delayed_msg_unicast); + mdns->ipv6.unicast_msg_in_use = 0; + } +} + +/** Start all multicast timeouts for IPv6 + * Timeouts started: + * - do not multicast within one second + * - do not multicast a probe response within 250ms + * - send a multicast answer on a QU question if not send recently. + * + * @param netif network interface to start timeouts on + */ +void +mdns_start_multicast_timeouts_ipv6(struct netif *netif) +{ + struct mdns_host *mdns = netif_mdns_data(netif); + + mdns_set_timeout(netif, MDNS_MULTICAST_TIMEOUT, mdns_multicast_timeout_reset_ipv6, + &mdns->ipv6.multicast_timeout); + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast timeout started - IPv6\n")); + mdns_set_timeout(netif, MDNS_MULTICAST_PROBE_TIMEOUT, mdns_multicast_probe_timeout_reset_ipv6, + &mdns->ipv6.multicast_probe_timeout); + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast probe timeout started - IPv6\n")); + mdns_set_timeout(netif, MDNS_MULTICAST_TIMEOUT_25TTL, mdns_multicast_timeout_25ttl_reset_ipv6, + &mdns->ipv6.multicast_timeout_25TTL); + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: multicast timeout 1/4 of ttl started - IPv6\n")); +} +#endif + +/** + * This function clears the output message without changing the destination + * address or port. This is useful for clearing the delayed msg structs without + * losing the set IP. + * + * @param outmsg pointer to output message to clear. + */ +static void +mdns_clear_outmsg(struct mdns_outmsg *outmsg) +{ + int i; + + outmsg->tx_id = 0; + outmsg->flags = 0; + outmsg->cache_flush = 0; + outmsg->unicast_reply_requested = 0; + outmsg->legacy_query = 0; + outmsg->probe_query_recv = 0; + outmsg->host_questions = 0; + outmsg->host_replies = 0; + outmsg->host_reverse_v6_replies = 0; + + for(i = 0; i < MDNS_MAX_SERVICES; i++) { + outmsg->serv_questions[i] = 0; + outmsg->serv_replies[i] = 0; + } +} + +/** + * Sets a timer that calls the handler when finished. + * Depending on the busy_flag the timer is restarted or started. The flag is + * set before return. Sys_timeout does not give us this functionality. + * + * @param netif Network interface info + * @param msecs Time value to set + * @param handler Callback function to call + * @param busy_flag Pointer to flag that displays if the timer is running or not. + */ +void +mdns_set_timeout(struct netif *netif, u32_t msecs, sys_timeout_handler handler, + u8_t *busy_flag) +{ + if(*busy_flag) { + /* restart timer */ + sys_untimeout(handler, netif); + sys_timeout(msecs, handler, netif); + } + else { + /* start timer */ + sys_timeout(msecs, handler, netif); + } + /* Now we have a timer running */ + *busy_flag = 1; +} + +#ifdef LWIP_MDNS_SEARCH +/** + * Send search request containing all our known data + * @param req The request to send + * @param netif The network interface to send on + * @param destination The target address to send to (usually multicast address) + */ +err_t +mdns_send_request(struct mdns_request *req, struct netif *netif, const ip_addr_t *destination) +{ + struct mdns_outmsg outmsg; + err_t res; + + memset(&outmsg, 0, sizeof(outmsg)); + outmsg.query = req; + outmsg.dest_port = LWIP_IANA_PORT_MDNS; + SMEMCPY(&outmsg.dest_addr, destination, sizeof(outmsg.dest_addr)); + res = mdns_send_outpacket(&outmsg, netif); + if(res != ERR_OK) { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Multicast query request send failed\n")); + } + else { + LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Multicast query request send successful\n")); + } + return res; +} +#endif + +#endif /* LWIP_MDNS_RESPONDER */ diff --git a/middleware/lwip/src/apps/mqtt/mqtt.c b/middleware/lwip/src/apps/mqtt/mqtt.c new file mode 100644 index 0000000..153cf74 --- /dev/null +++ b/middleware/lwip/src/apps/mqtt/mqtt.c @@ -0,0 +1,1468 @@ +/** + * @file + * MQTT client + * + * @defgroup mqtt MQTT client + * @ingroup apps + * @verbinclude mqtt_client.txt + */ + +/* + * Copyright (c) 2016 Erik Andersson + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack + * + * Author: Erik Andersson + * + * + * @todo: + * - Handle large outgoing payloads for PUBLISH messages + * - Fix restriction of a single topic in each (UN)SUBSCRIBE message (protocol has support for multiple topics) + * - Add support for legacy MQTT protocol version + * + * Please coordinate changes and requests with Erik Andersson + * Erik Andersson + * + */ +#include "lwip/apps/mqtt.h" +#include "lwip/apps/mqtt_priv.h" +#include "lwip/timeouts.h" +#include "lwip/ip_addr.h" +#include "lwip/mem.h" +#include "lwip/err.h" +#include "lwip/pbuf.h" +#include "lwip/altcp.h" +#include "lwip/altcp_tcp.h" +#include "lwip/altcp_tls.h" +#include + +#if LWIP_TCP && LWIP_CALLBACK_API + +/** + * MQTT_DEBUG: Default is off. + */ +#if !defined MQTT_DEBUG || defined __DOXYGEN__ +#define MQTT_DEBUG LWIP_DBG_OFF +#endif + +#define MQTT_DEBUG_TRACE (MQTT_DEBUG | LWIP_DBG_TRACE) +#define MQTT_DEBUG_STATE (MQTT_DEBUG | LWIP_DBG_STATE) +#define MQTT_DEBUG_WARN (MQTT_DEBUG | LWIP_DBG_LEVEL_WARNING) +#define MQTT_DEBUG_WARN_STATE (MQTT_DEBUG | LWIP_DBG_LEVEL_WARNING | LWIP_DBG_STATE) +#define MQTT_DEBUG_SERIOUS (MQTT_DEBUG | LWIP_DBG_LEVEL_SERIOUS) + + + +/** + * MQTT client connection states + */ +enum { + TCP_DISCONNECTED, + TCP_CONNECTING, + MQTT_CONNECTING, + MQTT_CONNECTED +}; + +/** + * MQTT control message types + */ +enum mqtt_message_type { + MQTT_MSG_TYPE_CONNECT = 1, + MQTT_MSG_TYPE_CONNACK = 2, + MQTT_MSG_TYPE_PUBLISH = 3, + MQTT_MSG_TYPE_PUBACK = 4, + MQTT_MSG_TYPE_PUBREC = 5, + MQTT_MSG_TYPE_PUBREL = 6, + MQTT_MSG_TYPE_PUBCOMP = 7, + MQTT_MSG_TYPE_SUBSCRIBE = 8, + MQTT_MSG_TYPE_SUBACK = 9, + MQTT_MSG_TYPE_UNSUBSCRIBE = 10, + MQTT_MSG_TYPE_UNSUBACK = 11, + MQTT_MSG_TYPE_PINGREQ = 12, + MQTT_MSG_TYPE_PINGRESP = 13, + MQTT_MSG_TYPE_DISCONNECT = 14 +}; + +/** Helpers to extract control packet type and qos from first byte in fixed header */ +#define MQTT_CTL_PACKET_TYPE(fixed_hdr_byte0) ((fixed_hdr_byte0 & 0xf0) >> 4) +#define MQTT_CTL_PACKET_QOS(fixed_hdr_byte0) ((fixed_hdr_byte0 & 0x6) >> 1) + +/** + * MQTT connect flags, only used in CONNECT message + */ +enum mqtt_connect_flag { + MQTT_CONNECT_FLAG_USERNAME = 1 << 7, + MQTT_CONNECT_FLAG_PASSWORD = 1 << 6, + MQTT_CONNECT_FLAG_WILL_RETAIN = 1 << 5, + MQTT_CONNECT_FLAG_WILL = 1 << 2, + MQTT_CONNECT_FLAG_CLEAN_SESSION = 1 << 1 +}; + + +static void mqtt_cyclic_timer(void *arg); + +#if defined(LWIP_DEBUG) +static const char *const mqtt_message_type_str[15] = { + "UNDEFINED", + "CONNECT", + "CONNACK", + "PUBLISH", + "PUBACK", + "PUBREC", + "PUBREL", + "PUBCOMP", + "SUBSCRIBE", + "SUBACK", + "UNSUBSCRIBE", + "UNSUBACK", + "PINGREQ", + "PINGRESP", + "DISCONNECT" +}; + +/** + * Message type value to string + * @param msg_type see enum mqtt_message_type + * + * @return Control message type text string + */ +static const char * +mqtt_msg_type_to_str(u8_t msg_type) +{ + if (msg_type >= LWIP_ARRAYSIZE(mqtt_message_type_str)) { + msg_type = 0; + } + return mqtt_message_type_str[msg_type]; +} + +#endif + + +/** + * Generate MQTT packet identifier + * @param client MQTT client + * @return New packet identifier, range 1 to 65535 + */ +static u16_t +msg_generate_packet_id(mqtt_client_t *client) +{ + client->pkt_id_seq++; + if (client->pkt_id_seq == 0) { + client->pkt_id_seq++; + } + return client->pkt_id_seq; +} + +/*--------------------------------------------------------------------------------------------------------------------- */ +/* Output ring buffer */ + +/** Add single item to ring buffer */ +static void +mqtt_ringbuf_put(struct mqtt_ringbuf_t *rb, u8_t item) +{ + rb->buf[rb->put] = item; + rb->put++; + if (rb->put >= MQTT_OUTPUT_RINGBUF_SIZE) { + rb->put = 0; + } +} + +/** Return pointer to ring buffer get position */ +static u8_t * +mqtt_ringbuf_get_ptr(struct mqtt_ringbuf_t *rb) +{ + return &rb->buf[rb->get]; +} + +static void +mqtt_ringbuf_advance_get_idx(struct mqtt_ringbuf_t *rb, u16_t len) +{ + LWIP_ASSERT("mqtt_ringbuf_advance_get_idx: len < MQTT_OUTPUT_RINGBUF_SIZE", len < MQTT_OUTPUT_RINGBUF_SIZE); + + rb->get += len; + if (rb->get >= MQTT_OUTPUT_RINGBUF_SIZE) { + rb->get = rb->get - MQTT_OUTPUT_RINGBUF_SIZE; + } +} + +/** Return number of bytes in ring buffer */ +static u16_t +mqtt_ringbuf_len(struct mqtt_ringbuf_t *rb) +{ + u32_t len = rb->put - rb->get; + if (len > 0xFFFF) { + len += MQTT_OUTPUT_RINGBUF_SIZE; + } + return (u16_t)len; +} + +/** Return number of bytes free in ring buffer */ +#define mqtt_ringbuf_free(rb) (MQTT_OUTPUT_RINGBUF_SIZE - mqtt_ringbuf_len(rb)) + +/** Return number of bytes possible to read without wrapping around */ +#define mqtt_ringbuf_linear_read_length(rb) LWIP_MIN(mqtt_ringbuf_len(rb), (MQTT_OUTPUT_RINGBUF_SIZE - (rb)->get)) + +/** + * Try send as many bytes as possible from output ring buffer + * @param rb Output ring buffer + * @param tpcb TCP connection handle + */ +static void +mqtt_output_send(struct mqtt_ringbuf_t *rb, struct altcp_pcb *tpcb) +{ + err_t err; + u8_t wrap = 0; + u16_t ringbuf_lin_len = mqtt_ringbuf_linear_read_length(rb); + u16_t send_len = altcp_sndbuf(tpcb); + LWIP_ASSERT("mqtt_output_send: tpcb != NULL", tpcb != NULL); + + if (send_len == 0 || ringbuf_lin_len == 0) { + return; + } + + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_output_send: tcp_sndbuf: %d bytes, ringbuf_linear_available: %d, get %d, put %d\n", + send_len, ringbuf_lin_len, rb->get, rb->put)); + + if (send_len > ringbuf_lin_len) { + /* Space in TCP output buffer is larger than available in ring buffer linear portion */ + send_len = ringbuf_lin_len; + /* Wrap around if more data in ring buffer after linear portion */ + wrap = (mqtt_ringbuf_len(rb) > ringbuf_lin_len); + } + err = altcp_write(tpcb, mqtt_ringbuf_get_ptr(rb), send_len, TCP_WRITE_FLAG_COPY | (wrap ? TCP_WRITE_FLAG_MORE : 0)); + if ((err == ERR_OK) && wrap) { + mqtt_ringbuf_advance_get_idx(rb, send_len); + /* Use the lesser one of ring buffer linear length and TCP send buffer size */ + send_len = LWIP_MIN(altcp_sndbuf(tpcb), mqtt_ringbuf_linear_read_length(rb)); + err = altcp_write(tpcb, mqtt_ringbuf_get_ptr(rb), send_len, TCP_WRITE_FLAG_COPY); + } + + if (err == ERR_OK) { + mqtt_ringbuf_advance_get_idx(rb, send_len); + /* Flush */ + altcp_output(tpcb); + } else { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_output_send: Send failed with err %d (\"%s\")\n", err, lwip_strerr(err))); + } +} + + + +/*--------------------------------------------------------------------------------------------------------------------- */ +/* Request queue */ + +/** + * Create request item + * @param r_objs Pointer to request objects + * @param r_objs_len Number of array entries + * @param pkt_id Packet identifier of request + * @param cb Packet callback to call when requests lifetime ends + * @param arg Parameter following callback + * @return Request or NULL if failed to create + */ +static struct mqtt_request_t * +mqtt_create_request(struct mqtt_request_t *r_objs, size_t r_objs_len, u16_t pkt_id, mqtt_request_cb_t cb, void *arg) +{ + struct mqtt_request_t *r = NULL; + u8_t n; + LWIP_ASSERT("mqtt_create_request: r_objs != NULL", r_objs != NULL); + for (n = 0; n < r_objs_len; n++) { + /* Item point to itself if not in use */ + if (r_objs[n].next == &r_objs[n]) { + r = &r_objs[n]; + r->next = NULL; + r->cb = cb; + r->arg = arg; + r->pkt_id = pkt_id; + break; + } + } + return r; +} + + +/** + * Append request to pending request queue + * @param tail Pointer to request queue tail pointer + * @param r Request to append + */ +static void +mqtt_append_request(struct mqtt_request_t **tail, struct mqtt_request_t *r) +{ + struct mqtt_request_t *head = NULL; + s16_t time_before = 0; + struct mqtt_request_t *iter; + + LWIP_ASSERT("mqtt_append_request: tail != NULL", tail != NULL); + + /* Iterate trough queue to find head, and count total timeout time */ + for (iter = *tail; iter != NULL; iter = iter->next) { + time_before += iter->timeout_diff; + head = iter; + } + + LWIP_ASSERT("mqtt_append_request: time_before <= MQTT_REQ_TIMEOUT", time_before <= MQTT_REQ_TIMEOUT); + r->timeout_diff = MQTT_REQ_TIMEOUT - time_before; + if (head == NULL) { + *tail = r; + } else { + head->next = r; + } +} + + +/** + * Delete request item + * @param r Request item to delete + */ +static void +mqtt_delete_request(struct mqtt_request_t *r) +{ + if (r != NULL) { + r->next = r; + } +} + +/** + * Remove a request item with a specific packet identifier from request queue + * @param tail Pointer to request queue tail pointer + * @param pkt_id Packet identifier of request to take + * @return Request item if found, NULL if not + */ +static struct mqtt_request_t * +mqtt_take_request(struct mqtt_request_t **tail, u16_t pkt_id) +{ + struct mqtt_request_t *iter = NULL, *prev = NULL; + LWIP_ASSERT("mqtt_take_request: tail != NULL", tail != NULL); + /* Search all request for pkt_id */ + for (iter = *tail; iter != NULL; iter = iter->next) { + if (iter->pkt_id == pkt_id) { + break; + } + prev = iter; + } + + /* If request was found */ + if (iter != NULL) { + /* unchain */ + if (prev == NULL) { + *tail = iter->next; + } else { + prev->next = iter->next; + } + /* If exists, add remaining timeout time for the request to next */ + if (iter->next != NULL) { + iter->next->timeout_diff += iter->timeout_diff; + } + iter->next = NULL; + } + return iter; +} + +/** + * Handle requests timeout + * @param tail Pointer to request queue tail pointer + * @param t Time since last call in seconds + */ +static void +mqtt_request_time_elapsed(struct mqtt_request_t **tail, u8_t t) +{ + struct mqtt_request_t *r; + LWIP_ASSERT("mqtt_request_time_elapsed: tail != NULL", tail != NULL); + r = *tail; + while (t > 0 && r != NULL) { + if (t >= r->timeout_diff) { + t -= (u8_t)r->timeout_diff; + /* Unchain */ + *tail = r->next; + /* Notify upper layer about timeout */ + if (r->cb != NULL) { + r->cb(r->arg, ERR_TIMEOUT); + } + mqtt_delete_request(r); + /* Tail might be be modified in callback, so re-read it in every iteration */ + r = *(struct mqtt_request_t *const volatile *)tail; + } else { + r->timeout_diff -= t; + t = 0; + } + } +} + +/** + * Free all request items + * @param tail Pointer to request queue tail pointer + */ +static void +mqtt_clear_requests(struct mqtt_request_t **tail) +{ + struct mqtt_request_t *iter, *next; + LWIP_ASSERT("mqtt_clear_requests: tail != NULL", tail != NULL); + for (iter = *tail; iter != NULL; iter = next) { + next = iter->next; + mqtt_delete_request(iter); + } + *tail = NULL; +} +/** + * Initialize all request items + * @param r_objs Pointer to request objects + * @param r_objs_len Number of array entries + */ +static void +mqtt_init_requests(struct mqtt_request_t *r_objs, size_t r_objs_len) +{ + u8_t n; + LWIP_ASSERT("mqtt_init_requests: r_objs != NULL", r_objs != NULL); + for (n = 0; n < r_objs_len; n++) { + /* Item pointing to itself indicates unused */ + r_objs[n].next = &r_objs[n]; + } +} + +/*--------------------------------------------------------------------------------------------------------------------- */ +/* Output message build helpers */ + + +static void +mqtt_output_append_u8(struct mqtt_ringbuf_t *rb, u8_t value) +{ + mqtt_ringbuf_put(rb, value); +} + +static +void mqtt_output_append_u16(struct mqtt_ringbuf_t *rb, u16_t value) +{ + mqtt_ringbuf_put(rb, value >> 8); + mqtt_ringbuf_put(rb, value & 0xff); +} + +static void +mqtt_output_append_buf(struct mqtt_ringbuf_t *rb, const void *data, u16_t length) +{ + u16_t n; + for (n = 0; n < length; n++) { + mqtt_ringbuf_put(rb, ((const u8_t *)data)[n]); + } +} + +static void +mqtt_output_append_string(struct mqtt_ringbuf_t *rb, const char *str, u16_t length) +{ + u16_t n; + mqtt_ringbuf_put(rb, length >> 8); + mqtt_ringbuf_put(rb, length & 0xff); + for (n = 0; n < length; n++) { + mqtt_ringbuf_put(rb, str[n]); + } +} + +/** + * Append fixed header + * @param rb Output ring buffer + * @param msg_type see enum mqtt_message_type + * @param fdup MQTT DUP flag + * @param fqos MQTT QoS field + * @param fretain MQTT retain flag + * @param r_length Remaining length after fixed header + */ + +static void +mqtt_output_append_fixed_header(struct mqtt_ringbuf_t *rb, u8_t msg_type, u8_t fdup, + u8_t fqos, u8_t fretain, u16_t r_length) +{ + /* Start with control byte */ + mqtt_output_append_u8(rb, (((msg_type & 0x0f) << 4) | ((fdup & 1) << 3) | ((fqos & 3) << 1) | (fretain & 1))); + /* Encode remaining length field */ + do { + mqtt_output_append_u8(rb, (r_length & 0x7f) | (r_length >= 128 ? 0x80 : 0)); + r_length >>= 7; + } while (r_length > 0); +} + + +/** + * Check output buffer space + * @param rb Output ring buffer + * @param r_length Remaining length after fixed header + * @return 1 if message will fit, 0 if not enough buffer space + */ +static u8_t +mqtt_output_check_space(struct mqtt_ringbuf_t *rb, u16_t r_length) +{ + /* Start with length of type byte + remaining length */ + u16_t total_len = 1 + r_length; + + LWIP_ASSERT("mqtt_output_check_space: rb != NULL", rb != NULL); + + /* Calculate number of required bytes to contain the remaining bytes field and add to total*/ + do { + total_len++; + r_length >>= 7; + } while (r_length > 0); + + return (total_len <= mqtt_ringbuf_free(rb)); +} + + +/** + * Close connection to server + * @param client MQTT client + * @param reason Reason for disconnection + */ +static void +mqtt_close(mqtt_client_t *client, mqtt_connection_status_t reason) +{ + LWIP_ASSERT("mqtt_close: client != NULL", client != NULL); + + /* Bring down TCP connection if not already done */ + if (client->conn != NULL) { + err_t res; + altcp_recv(client->conn, NULL); + altcp_err(client->conn, NULL); + altcp_sent(client->conn, NULL); + res = altcp_close(client->conn); + if (res != ERR_OK) { + altcp_abort(client->conn); + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_close: Close err=%s\n", lwip_strerr(res))); + } + client->conn = NULL; + } + + /* Remove all pending requests */ + mqtt_clear_requests(&client->pend_req_queue); + /* Stop cyclic timer */ + sys_untimeout(mqtt_cyclic_timer, client); + + /* Notify upper layer of disconnection if changed state */ + if (client->conn_state != TCP_DISCONNECTED) { + + client->conn_state = TCP_DISCONNECTED; + if (client->connect_cb != NULL) { + client->connect_cb(client, client->connect_arg, reason); + } + } +} + + +/** + * Interval timer, called every MQTT_CYCLIC_TIMER_INTERVAL seconds in MQTT_CONNECTING and MQTT_CONNECTED states + * @param arg MQTT client + */ +static void +mqtt_cyclic_timer(void *arg) +{ + u8_t restart_timer = 1; + mqtt_client_t *client = (mqtt_client_t *)arg; + LWIP_ASSERT("mqtt_cyclic_timer: client != NULL", client != NULL); + + if (client->conn_state == MQTT_CONNECTING) { + client->cyclic_tick++; + if ((client->cyclic_tick * MQTT_CYCLIC_TIMER_INTERVAL) >= MQTT_CONNECT_TIMOUT) { + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_cyclic_timer: CONNECT attempt to server timed out\n")); + /* Disconnect TCP */ + mqtt_close(client, MQTT_CONNECT_TIMEOUT); + restart_timer = 0; + } + } else if (client->conn_state == MQTT_CONNECTED) { + /* Handle timeout for pending requests */ + mqtt_request_time_elapsed(&client->pend_req_queue, MQTT_CYCLIC_TIMER_INTERVAL); + + /* keep_alive > 0 means keep alive functionality shall be used */ + if (client->keep_alive > 0) { + + client->server_watchdog++; + /* If reception from server has been idle for 1.5*keep_alive time, server is considered unresponsive */ + if ((client->server_watchdog * MQTT_CYCLIC_TIMER_INTERVAL) > (client->keep_alive + client->keep_alive / 2)) { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_cyclic_timer: Server incoming keep-alive timeout\n")); + mqtt_close(client, MQTT_CONNECT_TIMEOUT); + restart_timer = 0; + } + + /* If time for a keep alive message to be sent, transmission has been idle for keep_alive time */ + client->cyclic_tick++; + if ((client->cyclic_tick * MQTT_CYCLIC_TIMER_INTERVAL) >= client->keep_alive) { + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_cyclic_timer: Sending keep-alive message to server\n")); + if (mqtt_output_check_space(&client->output, 0) != 0) { + mqtt_output_append_fixed_header(&client->output, MQTT_MSG_TYPE_PINGREQ, 0, 0, 0, 0); + client->cyclic_tick = 0; + } + } + } + } else { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_cyclic_timer: Timer should not be running in state %d\n", client->conn_state)); + restart_timer = 0; + } + if (restart_timer) { + sys_timeout(MQTT_CYCLIC_TIMER_INTERVAL * 1000, mqtt_cyclic_timer, arg); + } +} + + +/** + * Send PUBACK, PUBREC or PUBREL response message + * @param client MQTT client + * @param msg PUBACK, PUBREC or PUBREL + * @param pkt_id Packet identifier + * @param qos QoS value + * @return ERR_OK if successful, ERR_MEM if out of memory + */ +static err_t +pub_ack_rec_rel_response(mqtt_client_t *client, u8_t msg, u16_t pkt_id, u8_t qos) +{ + err_t err = ERR_OK; + if (mqtt_output_check_space(&client->output, 2)) { + mqtt_output_append_fixed_header(&client->output, msg, 0, qos, 0, 2); + mqtt_output_append_u16(&client->output, pkt_id); + mqtt_output_send(&client->output, client->conn); + } else { + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("pub_ack_rec_rel_response: OOM creating response: %s with pkt_id: %d\n", + mqtt_msg_type_to_str(msg), pkt_id)); + err = ERR_MEM; + } + return err; +} + +/** + * Subscribe response from server + * @param r Matching request + * @param result Result code from server + */ +static void +mqtt_incomming_suback(struct mqtt_request_t *r, u8_t result) +{ + if (r->cb != NULL) { + r->cb(r->arg, result < 3 ? ERR_OK : ERR_ABRT); + } +} + + +/** + * Complete MQTT message received or buffer full + * @param client MQTT client + * @param fixed_hdr_len length of fixed header + * @param length length received part + * @param remaining_length Remaining length of complete message + */ +static mqtt_connection_status_t +mqtt_message_received(mqtt_client_t *client, u8_t fixed_hdr_len, u16_t length, u32_t remaining_length, + u8_t *var_hdr_payload) +{ + mqtt_connection_status_t res = MQTT_CONNECT_ACCEPTED; + + /* Control packet type */ + u8_t pkt_type = MQTT_CTL_PACKET_TYPE(client->rx_buffer[0]); + u16_t pkt_id = 0; + + LWIP_ASSERT("fixed_hdr_len <= client->msg_idx", fixed_hdr_len <= client->msg_idx); + LWIP_ERROR("buffer length mismatch", fixed_hdr_len + length <= MQTT_VAR_HEADER_BUFFER_LEN, + return MQTT_CONNECT_DISCONNECTED); + + if (pkt_type == MQTT_MSG_TYPE_CONNACK) { + if (client->conn_state == MQTT_CONNECTING) { + if (length < 2) { + LWIP_DEBUGF(MQTT_DEBUG_WARN,( "mqtt_message_received: Received short CONNACK message\n")); + goto out_disconnect; + } + /* Get result code from CONNACK */ + res = (mqtt_connection_status_t)var_hdr_payload[1]; + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_message_received: Connect response code %d\n", res)); + if (res == MQTT_CONNECT_ACCEPTED) { + /* Reset cyclic_tick when changing to connected state */ + client->cyclic_tick = 0; + client->conn_state = MQTT_CONNECTED; + /* Notify upper layer */ + if (client->connect_cb != 0) { + client->connect_cb(client, client->connect_arg, res); + } + } + } else { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_message_received: Received CONNACK in connected state\n")); + } + } else if (pkt_type == MQTT_MSG_TYPE_PINGRESP) { + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ( "mqtt_message_received: Received PINGRESP from server\n")); + + } else if (pkt_type == MQTT_MSG_TYPE_PUBLISH) { + u16_t payload_offset = 0; + u16_t payload_length = length; + u8_t qos = MQTT_CTL_PACKET_QOS(client->rx_buffer[0]); + + if (client->msg_idx == (u32_t)(fixed_hdr_len + length)) { + /* First publish message frame. Should have topic and pkt id*/ + size_t var_hdr_payload_bufsize = sizeof(client->rx_buffer) - fixed_hdr_len; + u8_t *topic; + u16_t after_topic; + u8_t bkp; + u16_t topic_len; + u16_t qos_len = (qos ? 2U : 0U); + if (length < 2 + qos_len) { + LWIP_DEBUGF(MQTT_DEBUG_WARN,( "mqtt_message_received: Received short PUBLISH packet\n")); + goto out_disconnect; + } + topic_len = var_hdr_payload[0]; + topic_len = (topic_len << 8) + (u16_t)(var_hdr_payload[1]); + if ((topic_len > length - (2 + qos_len)) || + (topic_len > var_hdr_payload_bufsize - (2 + qos_len))) { + LWIP_DEBUGF(MQTT_DEBUG_WARN,( "mqtt_message_received: Received short PUBLISH packet (topic)\n")); + goto out_disconnect; + } + + topic = var_hdr_payload + 2; + after_topic = 2 + topic_len; + /* Check buffer length, add one byte even for QoS 0 so that zero termination will fit */ + if ((after_topic + (qos ? 2U : 1U)) > var_hdr_payload_bufsize) { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_message_received: Receive buffer can not fit topic + pkt_id\n")); + goto out_disconnect; + } + + /* id for QoS 1 and 2 */ + if (qos > 0) { + if (length < after_topic + 2U) { + LWIP_DEBUGF(MQTT_DEBUG_WARN,( "mqtt_message_received: Received short PUBLISH packet (after_topic)\n")); + goto out_disconnect; + } + client->inpub_pkt_id = ((u16_t)var_hdr_payload[after_topic] << 8) + (u16_t)var_hdr_payload[after_topic + 1]; + after_topic += 2; + } else { + client->inpub_pkt_id = 0; + } + /* Take backup of byte after topic */ + bkp = topic[topic_len]; + /* Zero terminate string */ + topic[topic_len] = 0; + /* Payload data remaining in receive buffer */ + payload_length = length - after_topic; + payload_offset = after_topic; + + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_incomming_publish: Received message with QoS %d at topic: %s, payload length %"U32_F"\n", + qos, topic, remaining_length + payload_length)); + if (client->pub_cb != NULL) { + client->pub_cb(client->inpub_arg, (const char *)topic, remaining_length + payload_length); + } + /* Restore byte after topic */ + topic[topic_len] = bkp; + } + if (payload_length > 0 || remaining_length == 0) { + if (length < (size_t)(payload_offset + payload_length)) { + LWIP_DEBUGF(MQTT_DEBUG_WARN,( "mqtt_message_received: Received short packet (payload)\n")); + goto out_disconnect; + } + client->data_cb(client->inpub_arg, var_hdr_payload + payload_offset, payload_length, remaining_length == 0 ? MQTT_DATA_FLAG_LAST : 0); + /* Reply if QoS > 0 */ + if (remaining_length == 0 && qos > 0) { + /* Send PUBACK for QoS 1 or PUBREC for QoS 2 */ + u8_t resp_msg = (qos == 1) ? MQTT_MSG_TYPE_PUBACK : MQTT_MSG_TYPE_PUBREC; + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_incomming_publish: Sending publish response: %s with pkt_id: %d\n", + mqtt_msg_type_to_str(resp_msg), client->inpub_pkt_id)); + pub_ack_rec_rel_response(client, resp_msg, client->inpub_pkt_id, 0); + } + } + } else { + if (length < 2) { + LWIP_DEBUGF(MQTT_DEBUG_WARN,( "mqtt_message_received: Received short message\n")); + goto out_disconnect; + } + /* Get packet identifier */ + pkt_id = (u16_t)var_hdr_payload[0] << 8; + pkt_id |= (u16_t)var_hdr_payload[1]; + if (pkt_id == 0) { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_message_received: Got message with illegal packet identifier: 0\n")); + goto out_disconnect; + } + if (pkt_type == MQTT_MSG_TYPE_PUBREC) { + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_message_received: PUBREC, sending PUBREL with pkt_id: %d\n", pkt_id)); + pub_ack_rec_rel_response(client, MQTT_MSG_TYPE_PUBREL, pkt_id, 1); + + } else if (pkt_type == MQTT_MSG_TYPE_PUBREL) { + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_message_received: PUBREL, sending PUBCOMP response with pkt_id: %d\n", pkt_id)); + pub_ack_rec_rel_response(client, MQTT_MSG_TYPE_PUBCOMP, pkt_id, 0); + + } else if (pkt_type == MQTT_MSG_TYPE_SUBACK || pkt_type == MQTT_MSG_TYPE_UNSUBACK || + pkt_type == MQTT_MSG_TYPE_PUBCOMP || pkt_type == MQTT_MSG_TYPE_PUBACK) { + struct mqtt_request_t *r = mqtt_take_request(&client->pend_req_queue, pkt_id); + if (r != NULL) { + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_message_received: %s response with id %d\n", mqtt_msg_type_to_str(pkt_type), pkt_id)); + if (pkt_type == MQTT_MSG_TYPE_SUBACK) { + if (length < 3) { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_message_received: To small SUBACK packet\n")); + goto out_disconnect; + } else { + mqtt_incomming_suback(r, var_hdr_payload[2]); + } + } else if (r->cb != NULL) { + r->cb(r->arg, ERR_OK); + } + mqtt_delete_request(r); + } else { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ( "mqtt_message_received: Received %s reply, with wrong pkt_id: %d\n", mqtt_msg_type_to_str(pkt_type), pkt_id)); + } + } else { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ( "mqtt_message_received: Received unknown message type: %d\n", pkt_type)); + goto out_disconnect; + } + } + return res; +out_disconnect: + return MQTT_CONNECT_DISCONNECTED; +} + + +/** + * MQTT incoming message parser + * @param client MQTT client + * @param p PBUF chain of received data + * @return Connection status + */ +static mqtt_connection_status_t +mqtt_parse_incoming(mqtt_client_t *client, struct pbuf *p) +{ + u16_t in_offset = 0; + u32_t msg_rem_len = 0; + u8_t fixed_hdr_len = 0; + u8_t b = 0; + + while (p->tot_len > in_offset) { + /* We ALWAYS parse the header here first. Even if the header was not + included in this segment, we re-parse it here by buffering it in + client->rx_buffer. client->msg_idx keeps track of this. */ + if ((fixed_hdr_len < 2) || ((b & 0x80) != 0)) { + + if (fixed_hdr_len < client->msg_idx) { + /* parse header from old pbuf (buffered in client->rx_buffer) */ + b = client->rx_buffer[fixed_hdr_len]; + } else { + /* parse header from this pbuf and save it in client->rx_buffer in case + it comes in segmented */ + b = pbuf_get_at(p, in_offset++); + client->rx_buffer[client->msg_idx++] = b; + } + fixed_hdr_len++; + + if (fixed_hdr_len >= 2) { + /* fixed header contains at least 2 bytes but can contain more, depending on + 'remaining length'. All bytes but the last of this have 0x80 set to + indicate more bytes are coming. */ + msg_rem_len |= (u32_t)(b & 0x7f) << ((fixed_hdr_len - 2) * 7); + if ((b & 0x80) == 0) { + /* fixed header is done */ + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_parse_incoming: Remaining length after fixed header: %"U32_F"\n", msg_rem_len)); + if (msg_rem_len == 0) { + /* Complete message with no extra headers of payload received */ + mqtt_message_received(client, fixed_hdr_len, 0, 0, NULL); + client->msg_idx = 0; + fixed_hdr_len = 0; + } else { + /* Bytes remaining in message (changes remaining length if this is + not the first segment of this message) */ + msg_rem_len = (msg_rem_len + fixed_hdr_len) - client->msg_idx; + } + } + } + } else { + /* Fixed header has been parsed, parse variable header */ + u16_t cpy_len, buffer_space; + u8_t *var_hdr_payload; + mqtt_connection_status_t res; + + /* Allow to copy the lesser one of available length in input data or bytes remaining in message */ + cpy_len = (u16_t)LWIP_MIN((u16_t)(p->tot_len - in_offset), msg_rem_len); + + /* Limit to available space in buffer */ + buffer_space = MQTT_VAR_HEADER_BUFFER_LEN - fixed_hdr_len; + if (cpy_len > buffer_space) { + cpy_len = buffer_space; + } + /* Adjust cpy_len to ensure zero-copy operation for remaining parts of current message */ + if (client->msg_idx >= MQTT_VAR_HEADER_BUFFER_LEN) { + if (cpy_len > (p->len - in_offset)) + cpy_len = p->len - in_offset; + } + var_hdr_payload = (u8_t*)pbuf_get_contiguous(p, client->rx_buffer + fixed_hdr_len, + buffer_space, cpy_len, in_offset); + + /* Advance get and put indexes */ + client->msg_idx += cpy_len; + in_offset += cpy_len; + msg_rem_len -= cpy_len; + + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_parse_incoming: msg_idx: %"U32_F", cpy_len: %"U16_F", remaining %"U32_F"\n", client->msg_idx, cpy_len, msg_rem_len)); + /* Whole or partial message received */ + res = mqtt_message_received(client, fixed_hdr_len, cpy_len, msg_rem_len, var_hdr_payload); + if (res != MQTT_CONNECT_ACCEPTED) { + return res; + } + if (msg_rem_len == 0) { + /* Reset parser state */ + client->msg_idx = 0; + /* msg_tot_len = 0; */ + fixed_hdr_len = 0; + } + } + } + return MQTT_CONNECT_ACCEPTED; +} + + +/** + * TCP received callback function. @see tcp_recv_fn + * @param arg MQTT client + * @param p PBUF chain of received data + * @param err Passed as return value if not ERR_OK + * @return ERR_OK or err passed into callback + */ +static err_t +mqtt_tcp_recv_cb(void *arg, struct altcp_pcb *pcb, struct pbuf *p, err_t err) +{ + mqtt_client_t *client = (mqtt_client_t *)arg; + LWIP_ASSERT("mqtt_tcp_recv_cb: client != NULL", client != NULL); + LWIP_ASSERT("mqtt_tcp_recv_cb: client->conn == pcb", client->conn == pcb); + + if (p == NULL) { + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_tcp_recv_cb: Recv pbuf=NULL, remote has closed connection\n")); + mqtt_close(client, MQTT_CONNECT_DISCONNECTED); + } else { + mqtt_connection_status_t res; + if (err != ERR_OK) { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_tcp_recv_cb: Recv err=%d\n", err)); + pbuf_free(p); + return err; + } + + /* Tell remote that data has been received */ + altcp_recved(pcb, p->tot_len); + res = mqtt_parse_incoming(client, p); + pbuf_free(p); + + if (res != MQTT_CONNECT_ACCEPTED) { + mqtt_close(client, res); + } + /* If keep alive functionality is used */ + if (client->keep_alive != 0) { + /* Reset server alive watchdog */ + client->server_watchdog = 0; + } + + } + return ERR_OK; +} + + +/** + * TCP data sent callback function. @see tcp_sent_fn + * @param arg MQTT client + * @param tpcb TCP connection handle + * @param len Number of bytes sent + * @return ERR_OK + */ +static err_t +mqtt_tcp_sent_cb(void *arg, struct altcp_pcb *tpcb, u16_t len) +{ + mqtt_client_t *client = (mqtt_client_t *)arg; + + LWIP_UNUSED_ARG(tpcb); + LWIP_UNUSED_ARG(len); + + if (client->conn_state == MQTT_CONNECTED) { + struct mqtt_request_t *r; + + /* Reset keep-alive send timer and server watchdog */ + client->cyclic_tick = 0; + client->server_watchdog = 0; + /* QoS 0 publish has no response from server, so call its callbacks here */ + while ((r = mqtt_take_request(&client->pend_req_queue, 0)) != NULL) { + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_tcp_sent_cb: Calling QoS 0 publish complete callback\n")); + if (r->cb != NULL) { + r->cb(r->arg, ERR_OK); + } + mqtt_delete_request(r); + } + /* Try send any remaining buffers from output queue */ + mqtt_output_send(&client->output, client->conn); + } + return ERR_OK; +} + +/** + * TCP error callback function. @see tcp_err_fn + * @param arg MQTT client + * @param err Error encountered + */ +static void +mqtt_tcp_err_cb(void *arg, err_t err) +{ + mqtt_client_t *client = (mqtt_client_t *)arg; + LWIP_UNUSED_ARG(err); /* only used for debug output */ + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_tcp_err_cb: TCP error callback: error %d, arg: %p\n", err, arg)); + LWIP_ASSERT("mqtt_tcp_err_cb: client != NULL", client != NULL); + /* Set conn to null before calling close as pcb is already deallocated*/ + client->conn = 0; + mqtt_close(client, MQTT_CONNECT_DISCONNECTED); +} + +/** + * TCP poll callback function. @see tcp_poll_fn + * @param arg MQTT client + * @param tpcb TCP connection handle + * @return err ERR_OK + */ +static err_t +mqtt_tcp_poll_cb(void *arg, struct altcp_pcb *tpcb) +{ + mqtt_client_t *client = (mqtt_client_t *)arg; + if (client->conn_state == MQTT_CONNECTED) { + /* Try send any remaining buffers from output queue */ + mqtt_output_send(&client->output, tpcb); + } + return ERR_OK; +} + +/** + * TCP connect callback function. @see tcp_connected_fn + * @param arg MQTT client + * @param err Always ERR_OK, mqtt_tcp_err_cb is called in case of error + * @return ERR_OK + */ +static err_t +mqtt_tcp_connect_cb(void *arg, struct altcp_pcb *tpcb, err_t err) +{ + mqtt_client_t *client = (mqtt_client_t *)arg; + + if (err != ERR_OK) { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_tcp_connect_cb: TCP connect error %d\n", err)); + return err; + } + + /* Initiate receiver state */ + client->msg_idx = 0; + + /* Setup TCP callbacks */ + altcp_recv(tpcb, mqtt_tcp_recv_cb); + altcp_sent(tpcb, mqtt_tcp_sent_cb); + altcp_poll(tpcb, mqtt_tcp_poll_cb, 2); + + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_tcp_connect_cb: TCP connection established to server\n")); + /* Enter MQTT connect state */ + client->conn_state = MQTT_CONNECTING; + + /* Start cyclic timer */ + sys_timeout(MQTT_CYCLIC_TIMER_INTERVAL * 1000, mqtt_cyclic_timer, client); + client->cyclic_tick = 0; + + /* Start transmission from output queue, connect message is the first one out*/ + mqtt_output_send(&client->output, client->conn); + + return ERR_OK; +} + + + +/*---------------------------------------------------------------------------------------------------- */ +/* Public API */ + + +/** + * @ingroup mqtt + * MQTT publish function. + * @param client MQTT client + * @param topic Publish topic string + * @param payload Data to publish (NULL is allowed) + * @param payload_length Length of payload (0 is allowed) + * @param qos Quality of service, 0 1 or 2 + * @param retain MQTT retain flag + * @param cb Callback to call when publish is complete or has timed out + * @param arg User supplied argument to publish callback + * @return ERR_OK if successful + * ERR_CONN if client is disconnected + * ERR_MEM if short on memory + */ +err_t +mqtt_publish(mqtt_client_t *client, const char *topic, const void *payload, u16_t payload_length, u8_t qos, u8_t retain, + mqtt_request_cb_t cb, void *arg) +{ + struct mqtt_request_t *r; + u16_t pkt_id; + size_t topic_strlen; + size_t total_len; + u16_t topic_len; + u16_t remaining_length; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("mqtt_publish: client != NULL", client); + LWIP_ASSERT("mqtt_publish: topic != NULL", topic); + LWIP_ERROR("mqtt_publish: TCP disconnected", (client->conn_state != TCP_DISCONNECTED), return ERR_CONN); + + topic_strlen = strlen(topic); + LWIP_ERROR("mqtt_publish: topic length overflow", (topic_strlen <= (0xFFFF - 2)), return ERR_ARG); + topic_len = (u16_t)topic_strlen; + total_len = 2 + topic_len + payload_length; + + if (qos > 0) { + total_len += 2; + /* Generate pkt_id id for QoS1 and 2 */ + pkt_id = msg_generate_packet_id(client); + } else { + /* Use reserved value pkt_id 0 for QoS 0 in request handle */ + pkt_id = 0; + } + LWIP_ERROR("mqtt_publish: total length overflow", (total_len <= 0xFFFF), return ERR_ARG); + remaining_length = (u16_t)total_len; + + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_publish: Publish with payload length %d to topic \"%s\"\n", payload_length, topic)); + + r = mqtt_create_request(client->req_list, LWIP_ARRAYSIZE(client->req_list), pkt_id, cb, arg); + if (r == NULL) { + return ERR_MEM; + } + + if (mqtt_output_check_space(&client->output, remaining_length) == 0) { + mqtt_delete_request(r); + return ERR_MEM; + } + /* Append fixed header */ + mqtt_output_append_fixed_header(&client->output, MQTT_MSG_TYPE_PUBLISH, 0, qos, retain, remaining_length); + + /* Append Topic */ + mqtt_output_append_string(&client->output, topic, topic_len); + + /* Append packet if for QoS 1 and 2*/ + if (qos > 0) { + mqtt_output_append_u16(&client->output, pkt_id); + } + + /* Append optional publish payload */ + if ((payload != NULL) && (payload_length > 0)) { + mqtt_output_append_buf(&client->output, payload, payload_length); + } + + mqtt_append_request(&client->pend_req_queue, r); + mqtt_output_send(&client->output, client->conn); + return ERR_OK; +} + + +/** + * @ingroup mqtt + * MQTT subscribe/unsubscribe function. + * @param client MQTT client + * @param topic topic to subscribe to + * @param qos Quality of service, 0 1 or 2 (only used for subscribe) + * @param cb Callback to call when subscribe/unsubscribe response is received + * @param arg User supplied argument to publish callback + * @param sub 1 for subscribe, 0 for unsubscribe + * @return ERR_OK if successful, @see err_t enum for other results + */ +err_t +mqtt_sub_unsub(mqtt_client_t *client, const char *topic, u8_t qos, mqtt_request_cb_t cb, void *arg, u8_t sub) +{ + size_t topic_strlen; + size_t total_len; + u16_t topic_len; + u16_t remaining_length; + u16_t pkt_id; + struct mqtt_request_t *r; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("mqtt_sub_unsub: client != NULL", client); + LWIP_ASSERT("mqtt_sub_unsub: topic != NULL", topic); + + topic_strlen = strlen(topic); + LWIP_ERROR("mqtt_sub_unsub: topic length overflow", (topic_strlen <= (0xFFFF - 2)), return ERR_ARG); + topic_len = (u16_t)topic_strlen; + /* Topic string, pkt_id, qos for subscribe */ + total_len = topic_len + 2 + 2 + (sub != 0); + LWIP_ERROR("mqtt_sub_unsub: total length overflow", (total_len <= 0xFFFF), return ERR_ARG); + remaining_length = (u16_t)total_len; + + LWIP_ASSERT("mqtt_sub_unsub: qos < 3", qos < 3); + if (client->conn_state == TCP_DISCONNECTED) { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_sub_unsub: Can not (un)subscribe in disconnected state\n")); + return ERR_CONN; + } + + pkt_id = msg_generate_packet_id(client); + r = mqtt_create_request(client->req_list, LWIP_ARRAYSIZE(client->req_list), pkt_id, cb, arg); + if (r == NULL) { + return ERR_MEM; + } + + if (mqtt_output_check_space(&client->output, remaining_length) == 0) { + mqtt_delete_request(r); + return ERR_MEM; + } + + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_sub_unsub: Client (un)subscribe to topic \"%s\", id: %d\n", topic, pkt_id)); + + mqtt_output_append_fixed_header(&client->output, sub ? MQTT_MSG_TYPE_SUBSCRIBE : MQTT_MSG_TYPE_UNSUBSCRIBE, 0, 1, 0, remaining_length); + /* Packet id */ + mqtt_output_append_u16(&client->output, pkt_id); + /* Topic */ + mqtt_output_append_string(&client->output, topic, topic_len); + /* QoS */ + if (sub != 0) { + mqtt_output_append_u8(&client->output, LWIP_MIN(qos, 2)); + } + + mqtt_append_request(&client->pend_req_queue, r); + mqtt_output_send(&client->output, client->conn); + return ERR_OK; +} + + +/** + * @ingroup mqtt + * Set callback to handle incoming publish requests from server + * @param client MQTT client + * @param pub_cb Callback invoked when publish starts, contain topic and total length of payload + * @param data_cb Callback for each fragment of payload that arrives + * @param arg User supplied argument to both callbacks + */ +void +mqtt_set_inpub_callback(mqtt_client_t *client, mqtt_incoming_publish_cb_t pub_cb, + mqtt_incoming_data_cb_t data_cb, void *arg) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("mqtt_set_inpub_callback: client != NULL", client != NULL); + client->data_cb = data_cb; + client->pub_cb = pub_cb; + client->inpub_arg = arg; +} + +/** + * @ingroup mqtt + * Create a new MQTT client instance + * @return Pointer to instance on success, NULL otherwise + */ +mqtt_client_t * +mqtt_client_new(void) +{ + LWIP_ASSERT_CORE_LOCKED(); + return (mqtt_client_t *)mem_calloc(1, sizeof(mqtt_client_t)); +} + +/** + * @ingroup mqtt + * Free MQTT client instance + * @param client Pointer to instance to be freed + */ +void +mqtt_client_free(mqtt_client_t *client) +{ + mem_free(client); +} + +/** + * @ingroup mqtt + * Connect to MQTT server + * @param client MQTT client + * @param ip_addr Server IP + * @param port Server port + * @param cb Connection state change callback + * @param arg User supplied argument to connection callback + * @param client_info Client identification and connection options + * @return ERR_OK if successful, @see err_t enum for other results + */ +err_t +mqtt_client_connect(mqtt_client_t *client, const ip_addr_t *ip_addr, u16_t port, mqtt_connection_cb_t cb, void *arg, + const struct mqtt_connect_client_info_t *client_info) +{ + err_t err; + size_t len; + u16_t client_id_length; + /* Length is the sum of 2+"MQTT", protocol level, flags and keep alive */ + u16_t remaining_length = 2 + 4 + 1 + 1 + 2; + u8_t flags = 0, will_topic_len = 0, will_msg_len = 0; + u16_t client_user_len = 0, client_pass_len = 0; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("mqtt_client_connect: client != NULL", client != NULL); + LWIP_ASSERT("mqtt_client_connect: ip_addr != NULL", ip_addr != NULL); + LWIP_ASSERT("mqtt_client_connect: client_info != NULL", client_info != NULL); + LWIP_ASSERT("mqtt_client_connect: client_info->client_id != NULL", client_info->client_id != NULL); + + if (client->conn_state != TCP_DISCONNECTED) { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_client_connect: Already connected\n")); + return ERR_ISCONN; + } + + /* Wipe clean */ + memset(client, 0, sizeof(mqtt_client_t)); + client->connect_arg = arg; + client->connect_cb = cb; + client->keep_alive = client_info->keep_alive; + mqtt_init_requests(client->req_list, LWIP_ARRAYSIZE(client->req_list)); + + /* Build connect message */ + if (client_info->will_topic != NULL && client_info->will_msg != NULL) { + flags |= MQTT_CONNECT_FLAG_WILL; + flags |= (client_info->will_qos & 3) << 3; + if (client_info->will_retain) { + flags |= MQTT_CONNECT_FLAG_WILL_RETAIN; + } + len = strlen(client_info->will_topic); + LWIP_ERROR("mqtt_client_connect: client_info->will_topic length overflow", len <= 0xFF, return ERR_VAL); + LWIP_ERROR("mqtt_client_connect: client_info->will_topic length must be > 0", len > 0, return ERR_VAL); + will_topic_len = (u8_t)len; + len = strlen(client_info->will_msg); + LWIP_ERROR("mqtt_client_connect: client_info->will_msg length overflow", len <= 0xFF, return ERR_VAL); + will_msg_len = (u8_t)len; + len = remaining_length + 2 + will_topic_len + 2 + will_msg_len; + LWIP_ERROR("mqtt_client_connect: remaining_length overflow", len <= 0xFFFF, return ERR_VAL); + remaining_length = (u16_t)len; + } + if (client_info->client_user != NULL) { + flags |= MQTT_CONNECT_FLAG_USERNAME; + len = strlen(client_info->client_user); + LWIP_ERROR("mqtt_client_connect: client_info->client_user length overflow", len <= 0xFFFF, return ERR_VAL); + LWIP_ERROR("mqtt_client_connect: client_info->client_user length must be > 0", len > 0, return ERR_VAL); + client_user_len = (u16_t)len; + len = remaining_length + 2 + client_user_len; + LWIP_ERROR("mqtt_client_connect: remaining_length overflow", len <= 0xFFFF, return ERR_VAL); + remaining_length = (u16_t)len; + } + if (client_info->client_pass != NULL) { + flags |= MQTT_CONNECT_FLAG_PASSWORD; + len = strlen(client_info->client_pass); + LWIP_ERROR("mqtt_client_connect: client_info->client_pass length overflow", len <= 0xFFFF, return ERR_VAL); + LWIP_ERROR("mqtt_client_connect: client_info->client_pass length must be > 0", len > 0, return ERR_VAL); + client_pass_len = (u16_t)len; + len = remaining_length + 2 + client_pass_len; + LWIP_ERROR("mqtt_client_connect: remaining_length overflow", len <= 0xFFFF, return ERR_VAL); + remaining_length = (u16_t)len; + } + + /* Don't complicate things, always connect using clean session */ + flags |= MQTT_CONNECT_FLAG_CLEAN_SESSION; + + len = strlen(client_info->client_id); + LWIP_ERROR("mqtt_client_connect: client_info->client_id length overflow", len <= 0xFFFF, return ERR_VAL); + client_id_length = (u16_t)len; + len = remaining_length + 2 + client_id_length; + LWIP_ERROR("mqtt_client_connect: remaining_length overflow", len <= 0xFFFF, return ERR_VAL); + remaining_length = (u16_t)len; + + if (mqtt_output_check_space(&client->output, remaining_length) == 0) { + return ERR_MEM; + } + +#if LWIP_ALTCP && LWIP_ALTCP_TLS + if (client_info->tls_config) { + client->conn = altcp_tls_new(client_info->tls_config, IP_GET_TYPE(ip_addr)); + } else +#endif + { + client->conn = altcp_tcp_new_ip_type(IP_GET_TYPE(ip_addr)); + } + if (client->conn == NULL) { + return ERR_MEM; + } + + /* Set arg pointer for callbacks */ + altcp_arg(client->conn, client); + /* Any local address, pick random local port number */ + err = altcp_bind(client->conn, IP_ADDR_ANY, 0); + if (err != ERR_OK) { + LWIP_DEBUGF(MQTT_DEBUG_WARN, ("mqtt_client_connect: Error binding to local ip/port, %d\n", err)); + goto tcp_fail; + } + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_client_connect: Connecting to host: %s at port:%"U16_F"\n", ipaddr_ntoa(ip_addr), port)); + + /* Connect to server */ + err = altcp_connect(client->conn, ip_addr, port, mqtt_tcp_connect_cb); + if (err != ERR_OK) { + LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_client_connect: Error connecting to remote ip/port, %d\n", err)); + goto tcp_fail; + } + /* Set error callback */ + altcp_err(client->conn, mqtt_tcp_err_cb); + client->conn_state = TCP_CONNECTING; + + /* Append fixed header */ + mqtt_output_append_fixed_header(&client->output, MQTT_MSG_TYPE_CONNECT, 0, 0, 0, remaining_length); + /* Append Protocol string */ + mqtt_output_append_string(&client->output, "MQTT", 4); + /* Append Protocol level */ + mqtt_output_append_u8(&client->output, 4); + /* Append connect flags */ + mqtt_output_append_u8(&client->output, flags); + /* Append keep-alive */ + mqtt_output_append_u16(&client->output, client_info->keep_alive); + /* Append client id */ + mqtt_output_append_string(&client->output, client_info->client_id, client_id_length); + /* Append will message if used */ + if ((flags & MQTT_CONNECT_FLAG_WILL) != 0) { + mqtt_output_append_string(&client->output, client_info->will_topic, will_topic_len); + mqtt_output_append_string(&client->output, client_info->will_msg, will_msg_len); + } + /* Append user name if given */ + if ((flags & MQTT_CONNECT_FLAG_USERNAME) != 0) { + mqtt_output_append_string(&client->output, client_info->client_user, client_user_len); + } + /* Append password if given */ + if ((flags & MQTT_CONNECT_FLAG_PASSWORD) != 0) { + mqtt_output_append_string(&client->output, client_info->client_pass, client_pass_len); + } + return ERR_OK; + +tcp_fail: + altcp_abort(client->conn); + client->conn = NULL; + return err; +} + + +/** + * @ingroup mqtt + * Disconnect from MQTT server + * @param client MQTT client + */ +void +mqtt_disconnect(mqtt_client_t *client) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("mqtt_disconnect: client != NULL", client); + /* If connection in not already closed */ + if (client->conn_state != TCP_DISCONNECTED) { + /* Set conn_state before calling mqtt_close to prevent callback from being called */ + client->conn_state = TCP_DISCONNECTED; + mqtt_close(client, (mqtt_connection_status_t)0); + } +} + +/** + * @ingroup mqtt + * Check connection with server + * @param client MQTT client + * @return 1 if connected to server, 0 otherwise + */ +u8_t +mqtt_client_is_connected(mqtt_client_t *client) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("mqtt_client_is_connected: client != NULL", client); + return client->conn_state == MQTT_CONNECTED; +} + +#endif /* LWIP_TCP && LWIP_CALLBACK_API */ diff --git a/middleware/lwip/src/apps/netbiosns/netbiosns.c b/middleware/lwip/src/apps/netbiosns/netbiosns.c new file mode 100644 index 0000000..479c375 --- /dev/null +++ b/middleware/lwip/src/apps/netbiosns/netbiosns.c @@ -0,0 +1,533 @@ + /** + * @file + * NetBIOS name service responder + */ + +/** + * @defgroup netbiosns NETBIOS responder + * @ingroup apps + * + * This is an example implementation of a NetBIOS name server. + * It responds to name queries for a configurable name. + * Name resolving is not supported. + * + * Note that the device doesn't broadcast it's own name so can't + * detect duplicate names! + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Modifications by Ray Abram to respond to NetBIOS name requests when Incoming name = * + * - based on code from "https://github.com/esp8266/Arduino/commit/1f7989b31d26d7df9776a08f36d685eae7ac8f99" + * - with permission to relicense to BSD from original author: + * http://www.xpablo.cz/?p=751#more-751 + */ + +#include "lwip/apps/netbiosns.h" + +#if LWIP_IPV4 && LWIP_UDP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/def.h" +#include "lwip/udp.h" +#include "lwip/ip.h" +#include "lwip/netif.h" +#include "lwip/prot/iana.h" + +#include + +/** size of a NetBIOS name */ +#define NETBIOS_NAME_LEN 16 + +/** The Time-To-Live for NetBIOS name responds (in seconds) + * Default is 300000 seconds (3 days, 11 hours, 20 minutes) */ +#define NETBIOS_NAME_TTL 300000u + +/** NetBIOS header flags */ +#define NETB_HFLAG_RESPONSE 0x8000U +#define NETB_HFLAG_OPCODE 0x7800U +#define NETB_HFLAG_OPCODE_NAME_QUERY 0x0000U +#define NETB_HFLAG_AUTHORATIVE 0x0400U +#define NETB_HFLAG_TRUNCATED 0x0200U +#define NETB_HFLAG_RECURS_DESIRED 0x0100U +#define NETB_HFLAG_RECURS_AVAILABLE 0x0080U +#define NETB_HFLAG_BROADCAST 0x0010U +#define NETB_HFLAG_REPLYCODE 0x0008U +#define NETB_HFLAG_REPLYCODE_NOERROR 0x0000U + +/* NetBIOS question types */ +#define NETB_QTYPE_NB 0x0020U +#define NETB_QTYPE_NBSTAT 0x0021U + +/** NetBIOS name flags */ +#define NETB_NFLAG_UNIQUE 0x8000U +#define NETB_NFLAG_NODETYPE 0x6000U +#define NETB_NFLAG_NODETYPE_HNODE 0x6000U +#define NETB_NFLAG_NODETYPE_MNODE 0x4000U +#define NETB_NFLAG_NODETYPE_PNODE 0x2000U +#define NETB_NFLAG_NODETYPE_BNODE 0x0000U + +#define NETB_NFLAG_NAME_IN_CONFLICT 0x0800U /* 1=Yes, 0=No */ +#define NETB_NFLAG_NAME_IS_ACTIVE 0x0400U /* 1=Yes, 0=No */ +#define NETB_NFLAG_NAME_IS_PERMANENT 0x0200U /* 1=Yes (Name is Permanent Node Name), 0=No */ + +/** NetBIOS message header */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct netbios_hdr { + PACK_STRUCT_FIELD(u16_t trans_id); + PACK_STRUCT_FIELD(u16_t flags); + PACK_STRUCT_FIELD(u16_t questions); + PACK_STRUCT_FIELD(u16_t answerRRs); + PACK_STRUCT_FIELD(u16_t authorityRRs); + PACK_STRUCT_FIELD(u16_t additionalRRs); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** NetBIOS message question part */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct netbios_question_hdr { + PACK_STRUCT_FLD_8(u8_t nametype); + PACK_STRUCT_FLD_8(u8_t encname[(NETBIOS_NAME_LEN * 2) + 1]); + PACK_STRUCT_FIELD(u16_t type); + PACK_STRUCT_FIELD(u16_t cls); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** NetBIOS message name part */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct netbios_name_hdr { + PACK_STRUCT_FLD_8(u8_t nametype); + PACK_STRUCT_FLD_8(u8_t encname[(NETBIOS_NAME_LEN * 2) + 1]); + PACK_STRUCT_FIELD(u16_t type); + PACK_STRUCT_FIELD(u16_t cls); + PACK_STRUCT_FIELD(u32_t ttl); + PACK_STRUCT_FIELD(u16_t datalen); + PACK_STRUCT_FIELD(u16_t flags); + PACK_STRUCT_FLD_S(ip4_addr_p_t addr); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** NetBIOS message */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct netbios_resp { + struct netbios_hdr resp_hdr; + struct netbios_name_hdr resp_name; +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** The NBNS Structure Responds to a Name Query */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct netbios_answer { + struct netbios_hdr answer_hdr; + /** the length of the next string */ + PACK_STRUCT_FIELD(u8_t name_size); + /** WARNING!!! this item may be of a different length (we use this struct for transmission) */ + PACK_STRUCT_FLD_8(u8_t query_name[(NETBIOS_NAME_LEN * 2) + 1]); + PACK_STRUCT_FIELD(u16_t packet_type); + PACK_STRUCT_FIELD(u16_t cls); + PACK_STRUCT_FIELD(u32_t ttl); + PACK_STRUCT_FIELD(u16_t data_length); +#define OFFSETOF_STRUCT_NETBIOS_ANSWER_NUMBER_OF_NAMES 56 + /** number of names */ + PACK_STRUCT_FLD_8(u8_t number_of_names); + /** node name */ + PACK_STRUCT_FLD_8(u8_t answer_name[NETBIOS_NAME_LEN]); + /** node flags */ + PACK_STRUCT_FIELD(u16_t answer_name_flags); + /** Unit ID */ + PACK_STRUCT_FLD_8(u8_t unit_id[6]); + /** Jumpers */ + PACK_STRUCT_FLD_8(u8_t jumpers); + /** Test result */ + PACK_STRUCT_FLD_8(u8_t test_result); + /** Version number */ + PACK_STRUCT_FIELD(u16_t version_number); + /** Period of statistics */ + PACK_STRUCT_FIELD(u16_t period_of_statistics); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t number_of_crcs); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t number_of_alignment_errors); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t number_of_collisions); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t number_of_send_aborts); + /** Statistics */ + PACK_STRUCT_FIELD(u32_t number_of_good_sends); + /** Statistics */ + PACK_STRUCT_FIELD(u32_t number_of_good_receives); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t number_of_retransmits); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t number_of_no_resource_condition); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t number_of_free_command_blocks); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t total_number_of_command_blocks); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t max_total_number_of_command_blocks); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t number_of_pending_sessions); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t max_number_of_pending_sessions); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t max_total_sessions_possible); + /** Statistics */ + PACK_STRUCT_FIELD(u16_t session_data_packet_size); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#ifdef NETBIOS_LWIP_NAME +#define NETBIOS_LOCAL_NAME NETBIOS_LWIP_NAME +#else +static char netbiosns_local_name[NETBIOS_NAME_LEN]; +#define NETBIOS_LOCAL_NAME netbiosns_local_name +#endif + +static struct udp_pcb *netbiosns_pcb; + +/** Decode a NetBIOS name (from packet to string) */ +static int +netbiosns_name_decode(const char *name_enc, char *name_dec, int name_dec_len) +{ + const char *pname; + char cname; + char cnbname; + int idx = 0; + + LWIP_UNUSED_ARG(name_dec_len); + + /* Start decoding netbios name. */ + pname = name_enc; + for (;;) { + /* Every two characters of the first level-encoded name + * turn into one character in the decoded name. */ + cname = *pname; + if (cname == '\0') { + break; /* no more characters */ + } + if (cname == '.') { + break; /* scope ID follows */ + } + if (!lwip_isupper(cname)) { + /* Not legal. */ + return -1; + } + cname -= 'A'; + cnbname = cname << 4; + pname++; + + cname = *pname; + if (!lwip_isupper(cname)) { + /* Not legal. */ + return -1; + } + cname -= 'A'; + cnbname |= cname; + pname++; + + /* Do we have room to store the character? */ + if (idx < NETBIOS_NAME_LEN) { + /* Yes - store the character. */ + name_dec[idx++] = (cnbname != ' ' ? cnbname : '\0'); + } + } + + return 0; +} + +#if 0 /* function currently unused */ +/** Encode a NetBIOS name (from string to packet) - currently unused because + we don't ask for names. */ +static int +netbiosns_name_encode(char *name_enc, char *name_dec, int name_dec_len) +{ + char *pname; + char cname; + unsigned char ucname; + int idx = 0; + + /* Start encoding netbios name. */ + pname = name_enc; + + for (;;) { + /* Every two characters of the first level-encoded name + * turn into one character in the decoded name. */ + cname = *pname; + if (cname == '\0') { + break; /* no more characters */ + } + if (cname == '.') { + break; /* scope ID follows */ + } + if ((cname < 'A' || cname > 'Z') && (cname < '0' || cname > '9')) { + /* Not legal. */ + return -1; + } + + /* Do we have room to store the character? */ + if (idx >= name_dec_len) { + return -1; + } + + /* Yes - store the character. */ + ucname = cname; + name_dec[idx++] = ('A' + ((ucname >> 4) & 0x0F)); + name_dec[idx++] = ('A' + ( ucname & 0x0F)); + pname++; + } + + /* Fill with "space" coding */ + for (; idx < name_dec_len - 1;) { + name_dec[idx++] = 'C'; + name_dec[idx++] = 'A'; + } + + /* Terminate string */ + name_dec[idx] = '\0'; + + return 0; +} +#endif /* 0 */ + +/** NetBIOS Name service recv callback */ +static void +netbiosns_recv(void *arg, struct udp_pcb *upcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) +{ + LWIP_UNUSED_ARG(arg); + + /* if packet is valid */ + if (p != NULL) { + char netbios_name[NETBIOS_NAME_LEN + 1]; + struct netbios_hdr *netbios_hdr = (struct netbios_hdr *)p->payload; + struct netbios_question_hdr *netbios_question_hdr = (struct netbios_question_hdr *)(netbios_hdr + 1); + + /* is the packet long enough (we need the header in one piece) */ + if (p->len < (sizeof(struct netbios_hdr) + sizeof(struct netbios_question_hdr))) { + /* packet too short */ + pbuf_free(p); + return; + } + /* we only answer if we got a default interface */ + if (netif_default != NULL) { + /* @todo: do we need to check answerRRs/authorityRRs/additionalRRs? */ + /* if the packet is a NetBIOS name query question */ + if (((netbios_hdr->flags & PP_NTOHS(NETB_HFLAG_OPCODE)) == PP_NTOHS(NETB_HFLAG_OPCODE_NAME_QUERY)) && + ((netbios_hdr->flags & PP_NTOHS(NETB_HFLAG_RESPONSE)) == 0) && + (netbios_hdr->questions == PP_NTOHS(1))) { + /* decode the NetBIOS name */ + netbiosns_name_decode((char *)(netbios_question_hdr->encname), netbios_name, sizeof(netbios_name)); + /* check the request type */ + if (netbios_question_hdr->type == PP_HTONS(NETB_QTYPE_NB)) { + /* if the packet is for us */ + if (lwip_strnicmp(netbios_name, NETBIOS_LOCAL_NAME, sizeof(NETBIOS_LOCAL_NAME)) == 0) { + struct pbuf *q; + struct netbios_resp *resp; + + q = pbuf_alloc(PBUF_TRANSPORT, sizeof(struct netbios_resp), PBUF_RAM); + if (q != NULL) { + resp = (struct netbios_resp *)q->payload; + + /* prepare NetBIOS header response */ + resp->resp_hdr.trans_id = netbios_hdr->trans_id; + resp->resp_hdr.flags = PP_HTONS(NETB_HFLAG_RESPONSE | + NETB_HFLAG_OPCODE_NAME_QUERY | + NETB_HFLAG_AUTHORATIVE | + NETB_HFLAG_RECURS_DESIRED); + resp->resp_hdr.questions = 0; + resp->resp_hdr.answerRRs = PP_HTONS(1); + resp->resp_hdr.authorityRRs = 0; + resp->resp_hdr.additionalRRs = 0; + + /* prepare NetBIOS header datas */ + MEMCPY( resp->resp_name.encname, netbios_question_hdr->encname, sizeof(netbios_question_hdr->encname)); + resp->resp_name.nametype = netbios_question_hdr->nametype; + resp->resp_name.type = netbios_question_hdr->type; + resp->resp_name.cls = netbios_question_hdr->cls; + resp->resp_name.ttl = PP_HTONL(NETBIOS_NAME_TTL); + resp->resp_name.datalen = PP_HTONS(sizeof(resp->resp_name.flags) + sizeof(resp->resp_name.addr)); + resp->resp_name.flags = PP_HTONS(NETB_NFLAG_NODETYPE_BNODE); + ip4_addr_copy(resp->resp_name.addr, *netif_ip4_addr(netif_default)); + + /* send the NetBIOS response */ + udp_sendto(upcb, q, addr, port); + + /* free the "reference" pbuf */ + pbuf_free(q); + } + } +#if LWIP_NETBIOS_RESPOND_NAME_QUERY + } else if (netbios_question_hdr->type == PP_HTONS(NETB_QTYPE_NBSTAT)) { + /* if the packet is for us or general query */ + if (!lwip_strnicmp(netbios_name, NETBIOS_LOCAL_NAME, sizeof(NETBIOS_LOCAL_NAME)) || + !lwip_strnicmp(netbios_name, "*", sizeof(NETBIOS_LOCAL_NAME))) { + /* general query - ask for our IP address */ + struct pbuf *q; + struct netbios_answer *resp; + + q = pbuf_alloc(PBUF_TRANSPORT, sizeof(struct netbios_answer), PBUF_RAM); + if (q != NULL) { + /* buffer to which a response is compiled */ + resp = (struct netbios_answer *) q->payload; + + /* Init response to zero, especially the statistics fields */ + memset(resp, 0, sizeof(*resp)); + + /* copy the query to the response ID */ + resp->answer_hdr.trans_id = netbios_hdr->trans_id; + /* acknowledgment of termination */ + resp->answer_hdr.flags = PP_HTONS(NETB_HFLAG_RESPONSE | NETB_HFLAG_OPCODE_NAME_QUERY | NETB_HFLAG_AUTHORATIVE); + /* resp->answer_hdr.questions = PP_HTONS(0); done by memset() */ + /* serial number of the answer */ + resp->answer_hdr.answerRRs = PP_HTONS(1); + /* resp->answer_hdr.authorityRRs = PP_HTONS(0); done by memset() */ + /* resp->answer_hdr.additionalRRs = PP_HTONS(0); done by memset() */ + /* we will copy the length of the station name */ + resp->name_size = netbios_question_hdr->nametype; + /* we will copy the queried name */ + MEMCPY(resp->query_name, netbios_question_hdr->encname, (NETBIOS_NAME_LEN * 2) + 1); + /* NBSTAT */ + resp->packet_type = PP_HTONS(0x21); + /* Internet name */ + resp->cls = PP_HTONS(1); + /* resp->ttl = PP_HTONL(0); done by memset() */ + resp->data_length = PP_HTONS(sizeof(struct netbios_answer) - offsetof(struct netbios_answer, number_of_names)); + resp->number_of_names = 1; + + /* make windows see us as workstation, not as a server */ + memset(resp->answer_name, 0x20, NETBIOS_NAME_LEN - 1); + /* strlen is checked to be < NETBIOS_NAME_LEN during initialization */ + MEMCPY(resp->answer_name, NETBIOS_LOCAL_NAME, strlen(NETBIOS_LOCAL_NAME)); + + /* b-node, unique, active */ + resp->answer_name_flags = PP_HTONS(NETB_NFLAG_NAME_IS_ACTIVE); + + /* Set responder netif MAC address */ + SMEMCPY(resp->unit_id, ip_current_input_netif()->hwaddr, sizeof(resp->unit_id)); + + udp_sendto(upcb, q, addr, port); + pbuf_free(q); + } + } +#endif /* LWIP_NETBIOS_RESPOND_NAME_QUERY */ + } + } + } + /* free the pbuf */ + pbuf_free(p); + } +} + +/** + * @ingroup netbiosns + * Init netbios responder + */ +void +netbiosns_init(void) +{ + /* LWIP_ASSERT_CORE_LOCKED(); is checked by udp_new() */ +#ifdef NETBIOS_LWIP_NAME + LWIP_ASSERT("NetBIOS name is too long!", strlen(NETBIOS_LWIP_NAME) < NETBIOS_NAME_LEN); +#endif + + netbiosns_pcb = udp_new_ip_type(IPADDR_TYPE_ANY); + if (netbiosns_pcb != NULL) { + /* we have to be allowed to send broadcast packets! */ + ip_set_option(netbiosns_pcb, SOF_BROADCAST); + udp_bind(netbiosns_pcb, IP_ANY_TYPE, LWIP_IANA_PORT_NETBIOS); + udp_recv(netbiosns_pcb, netbiosns_recv, netbiosns_pcb); + } +} + +#ifndef NETBIOS_LWIP_NAME +/** + * @ingroup netbiosns + * Set netbios name. ATTENTION: the hostname must be less than 15 characters! + * the NetBIOS name spec says the name MUST be upper case, so incoming name is forced into uppercase :-) + */ +void +netbiosns_set_name(const char *hostname) +{ + size_t i; + size_t copy_len = strlen(hostname); + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("NetBIOS name is too long!", copy_len < NETBIOS_NAME_LEN); + if (copy_len >= NETBIOS_NAME_LEN) { + copy_len = NETBIOS_NAME_LEN - 1; + } + + /* make name into upper case */ + for (i = 0; i < copy_len; i++ ) { + netbiosns_local_name[i] = (char)lwip_toupper(hostname[i]); + } + netbiosns_local_name[copy_len] = '\0'; +} +#endif /* NETBIOS_LWIP_NAME */ + +/** + * @ingroup netbiosns + * Stop netbios responder + */ +void +netbiosns_stop(void) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (netbiosns_pcb != NULL) { + udp_remove(netbiosns_pcb); + netbiosns_pcb = NULL; + } +} + +#endif /* LWIP_IPV4 && LWIP_UDP */ diff --git a/middleware/lwip/src/apps/smtp/smtp.c b/middleware/lwip/src/apps/smtp/smtp.c new file mode 100644 index 0000000..a1780bd --- /dev/null +++ b/middleware/lwip/src/apps/smtp/smtp.c @@ -0,0 +1,1554 @@ +/** + * @file + * SMTP client module + * + * Author: Simon Goldschmidt + * + * @defgroup smtp SMTP client + * @ingroup apps + * + * This is simple SMTP client for raw API. + * It is a minimal implementation of SMTP as specified in RFC 5321. + * + * Example usage: +@code{.c} + void my_smtp_result_fn(void *arg, u8_t smtp_result, u16_t srv_err, err_t err) + { + printf("mail (%p) sent with results: 0x%02x, 0x%04x, 0x%08x\n", arg, + smtp_result, srv_err, err); + } + static void my_smtp_test(void) + { + smtp_set_server_addr("mymailserver.org"); + -> set both username and password as NULL if no auth needed + smtp_set_auth("username", "password"); + smtp_send_mail("sender", "recipient", "subject", "body", my_smtp_result_fn, + some_argument); + } +@endcode + + * When using from any other thread than the tcpip_thread (for NO_SYS==0), use + * smtp_send_mail_int()! + * + * SMTP_BODYDH usage: +@code{.c} + int my_smtp_bodydh_fn(void *arg, struct smtp_bodydh *bdh) + { + if(bdh->state >= 10) { + return BDH_DONE; + } + sprintf(bdh->buffer,"Line #%2d\r\n",bdh->state); + bdh->length = strlen(bdh->buffer); + ++bdh->state; + return BDH_WORKING; + } + + smtp_send_mail_bodycback("sender", "recipient", "subject", + my_smtp_bodydh_fn, my_smtp_result_fn, some_argument); +@endcode + * + * @todo: + * - attachments (the main difficulty here is streaming base64-encoding to + * prevent having to allocate a buffer for the whole encoded file at once) + * - test with more mail servers... + * + */ + +#include "lwip/apps/smtp.h" + +#if LWIP_TCP && LWIP_CALLBACK_API +#include "lwip/sys.h" +#include "lwip/sockets.h" +#include "lwip/altcp.h" +#include "lwip/dns.h" +#include "lwip/mem.h" +#include "lwip/altcp_tcp.h" +#include "lwip/altcp_tls.h" + +#include /* strlen, memcpy */ +#include + +/** TCP poll interval. Unit is 0.5 sec. */ +#define SMTP_POLL_INTERVAL 4 +/** TCP poll timeout while sending message body, reset after every + * successful write. 3 minutes */ +#define SMTP_TIMEOUT_DATABLOCK ( 3 * 60 * SMTP_POLL_INTERVAL / 2) +/** TCP poll timeout while waiting for confirmation after sending the body. + * 10 minutes */ +#define SMTP_TIMEOUT_DATATERM (10 * 60 * SMTP_POLL_INTERVAL / 2) +/** TCP poll timeout while not sending the body. + * This is somewhat lower than the RFC states (5 minutes for initial, MAIL + * and RCPT) but still OK for us here. + * 2 minutes */ +#define SMTP_TIMEOUT ( 2 * 60 * SMTP_POLL_INTERVAL / 2) + +/* the various debug levels for this file */ +#define SMTP_DEBUG_TRACE (SMTP_DEBUG | LWIP_DBG_TRACE) +#define SMTP_DEBUG_STATE (SMTP_DEBUG | LWIP_DBG_STATE) +#define SMTP_DEBUG_WARN (SMTP_DEBUG | LWIP_DBG_LEVEL_WARNING) +#define SMTP_DEBUG_WARN_STATE (SMTP_DEBUG | LWIP_DBG_LEVEL_WARNING | LWIP_DBG_STATE) +#define SMTP_DEBUG_SERIOUS (SMTP_DEBUG | LWIP_DBG_LEVEL_SERIOUS) + + +#define SMTP_RX_BUF_LEN 255 +#define SMTP_TX_BUF_LEN 255 +#define SMTP_CRLF "\r\n" +#define SMTP_CRLF_LEN 2 + +#define SMTP_RESP_220 "220" +#define SMTP_RESP_235 "235" +#define SMTP_RESP_250 "250" +#define SMTP_RESP_334 "334" +#define SMTP_RESP_354 "354" +#define SMTP_RESP_LOGIN_UNAME "VXNlcm5hbWU6" +#define SMTP_RESP_LOGIN_PASS "UGFzc3dvcmQ6" + +#define SMTP_KEYWORD_AUTH_SP "AUTH " +#define SMTP_KEYWORD_AUTH_EQ "AUTH=" +#define SMTP_KEYWORD_AUTH_LEN 5 +#define SMTP_AUTH_PARAM_PLAIN "PLAIN" +#define SMTP_AUTH_PARAM_LOGIN "LOGIN" + +#define SMTP_CMD_EHLO_1 "EHLO [" +#define SMTP_CMD_EHLO_1_LEN 6 +#define SMTP_CMD_EHLO_2 "]\r\n" +#define SMTP_CMD_EHLO_2_LEN 3 +#define SMTP_CMD_AUTHPLAIN_1 "AUTH PLAIN " +#define SMTP_CMD_AUTHPLAIN_1_LEN 11 +#define SMTP_CMD_AUTHPLAIN_2 "\r\n" +#define SMTP_CMD_AUTHPLAIN_2_LEN 2 +#define SMTP_CMD_AUTHLOGIN "AUTH LOGIN\r\n" +#define SMTP_CMD_AUTHLOGIN_LEN 12 +#define SMTP_CMD_MAIL_1 "MAIL FROM: <" +#define SMTP_CMD_MAIL_1_LEN 12 +#define SMTP_CMD_MAIL_2 ">\r\n" +#define SMTP_CMD_MAIL_2_LEN 3 +#define SMTP_CMD_RCPT_1 "RCPT TO: <" +#define SMTP_CMD_RCPT_1_LEN 10 +#define SMTP_CMD_RCPT_2 ">\r\n" +#define SMTP_CMD_RCPT_2_LEN 3 +#define SMTP_CMD_DATA "DATA\r\n" +#define SMTP_CMD_DATA_LEN 6 +#define SMTP_CMD_HEADER_1 "From: <" +#define SMTP_CMD_HEADER_1_LEN 7 +#define SMTP_CMD_HEADER_2 ">\r\nTo: <" +#define SMTP_CMD_HEADER_2_LEN 8 +#define SMTP_CMD_HEADER_3 ">\r\nSubject: " +#define SMTP_CMD_HEADER_3_LEN 12 +#define SMTP_CMD_HEADER_4 "\r\n\r\n" +#define SMTP_CMD_HEADER_4_LEN 4 +#define SMTP_CMD_BODY_FINISHED "\r\n.\r\n" +#define SMTP_CMD_BODY_FINISHED_LEN 5 +#define SMTP_CMD_QUIT "QUIT\r\n" +#define SMTP_CMD_QUIT_LEN 6 + +#if defined(SMTP_STAT_TX_BUF_MAX) && SMTP_STAT_TX_BUF_MAX +#define SMTP_TX_BUF_MAX(len) LWIP_MACRO(if((len) > smtp_tx_buf_len_max) smtp_tx_buf_len_max = (len);) +#else /* SMTP_STAT_TX_BUF_MAX */ +#define SMTP_TX_BUF_MAX(len) +#endif /* SMTP_STAT_TX_BUF_MAX */ + +#if SMTP_COPY_AUTHDATA +#define SMTP_USERNAME(session) (session)->username +#define SMTP_PASS(session) (session)->pass +#define SMTP_AUTH_PLAIN_DATA(session) (session)->auth_plain +#define SMTP_AUTH_PLAIN_LEN(session) (session)->auth_plain_len +#else /* SMTP_COPY_AUTHDATA */ +#define SMTP_USERNAME(session) smtp_username +#define SMTP_PASS(session) smtp_pass +#define SMTP_AUTH_PLAIN_DATA(session) smtp_auth_plain +#define SMTP_AUTH_PLAIN_LEN(session) smtp_auth_plain_len +#endif /* SMTP_COPY_AUTHDATA */ + +#if SMTP_BODYDH +#ifndef SMTP_BODYDH_MALLOC +#define SMTP_BODYDH_MALLOC(size) mem_malloc(size) +#define SMTP_BODYDH_FREE(ptr) mem_free(ptr) +#endif + +/* Some internal state return values */ +#define BDHALLDATASENT 2 +#define BDHSOMEDATASENT 1 + +enum bdh_handler_state { + BDH_SENDING, /* Serving the user function generating body content */ + BDH_STOP /* User function stopped, closing */ +}; +#endif + +/** State for SMTP client state machine */ +enum smtp_session_state { + SMTP_NULL, + SMTP_HELO, + SMTP_AUTH_PLAIN, + SMTP_AUTH_LOGIN_UNAME, + SMTP_AUTH_LOGIN_PASS, + SMTP_AUTH_LOGIN, + SMTP_MAIL, + SMTP_RCPT, + SMTP_DATA, + SMTP_BODY, + SMTP_QUIT, + SMTP_CLOSED +}; + +#ifdef LWIP_DEBUG +/** State-to-string table for debugging */ +static const char *smtp_state_str[] = { + "SMTP_NULL", + "SMTP_HELO", + "SMTP_AUTH_PLAIN", + "SMTP_AUTH_LOGIN_UNAME", + "SMTP_AUTH_LOGIN_PASS", + "SMTP_AUTH_LOGIN", + "SMTP_MAIL", + "SMTP_RCPT", + "SMTP_DATA", + "SMTP_BODY", + "SMTP_QUIT", + "SMTP_CLOSED", +}; + +static const char *smtp_result_strs[] = { + "SMTP_RESULT_OK", + "SMTP_RESULT_ERR_UNKNOWN", + "SMTP_RESULT_ERR_CONNECT", + "SMTP_RESULT_ERR_HOSTNAME", + "SMTP_RESULT_ERR_CLOSED", + "SMTP_RESULT_ERR_TIMEOUT", + "SMTP_RESULT_ERR_SVR_RESP", + "SMTP_RESULT_ERR_MEM" +}; +#endif /* LWIP_DEBUG */ + +#if SMTP_BODYDH +struct smtp_bodydh_state { + smtp_bodycback_fn callback_fn; /* The function to call (again) */ + u16_t state; + struct smtp_bodydh exposed; /* the user function structure */ +}; +#endif /* SMTP_BODYDH */ + +/** struct keeping the body and state of an smtp session */ +struct smtp_session { + /** keeping the state of the smtp session */ + enum smtp_session_state state; + /** timeout handling, if this reaches 0, the connection is closed */ + u16_t timer; + /** helper buffer for transmit, not used for sending body */ + char tx_buf[SMTP_TX_BUF_LEN + 1]; + struct pbuf* p; + /** source email address */ + const char* from; + /** size of the sourceemail address */ + u16_t from_len; + /** target email address */ + const char* to; + /** size of the target email address */ + u16_t to_len; + /** subject of the email */ + const char *subject; + /** length of the subject string */ + u16_t subject_len; + /** this is the body of the mail to be sent */ + const char* body; + /** this is the length of the body to be sent */ + u16_t body_len; + /** amount of data from body already sent */ + u16_t body_sent; + /** callback function to call when closed */ + smtp_result_fn callback_fn; + /** argument for callback function */ + void *callback_arg; +#if SMTP_COPY_AUTHDATA + /** Username to use for this request */ + char *username; + /** Password to use for this request */ + char *pass; + /** Username and password combined as necessary for PLAIN authentication */ + char auth_plain[SMTP_MAX_USERNAME_LEN + SMTP_MAX_PASS_LEN + 3]; + /** Length of smtp_auth_plain string (cannot use strlen since it includes \0) */ + size_t auth_plain_len; +#endif /* SMTP_COPY_AUTHDATA */ +#if SMTP_BODYDH + struct smtp_bodydh_state *bodydh; +#endif /* SMTP_BODYDH */ +}; + +/** IP address or DNS name of the server to use for next SMTP request */ +static char smtp_server[SMTP_MAX_SERVERNAME_LEN + 1]; +/** TCP port of the server to use for next SMTP request */ +static u16_t smtp_server_port = SMTP_DEFAULT_PORT; +#if LWIP_ALTCP && LWIP_ALTCP_TLS +/** If this is set, mail is sent using SMTPS */ +static struct altcp_tls_config *smtp_server_tls_config; +#endif +/** Username to use for the next SMTP request */ +static char *smtp_username; +/** Password to use for the next SMTP request */ +static char *smtp_pass; +/** Username and password combined as necessary for PLAIN authentication */ +static char smtp_auth_plain[SMTP_MAX_USERNAME_LEN + SMTP_MAX_PASS_LEN + 3]; +/** Length of smtp_auth_plain string (cannot use strlen since it includes \0) */ +static size_t smtp_auth_plain_len; + +#if SMTP_CHECK_DATA +static err_t smtp_verify(const char *data, size_t data_len, u8_t linebreaks_allowed); +#endif /* SMTP_CHECK_DATA */ +static err_t smtp_tcp_recv(void *arg, struct altcp_pcb *pcb, struct pbuf *p, err_t err); +static void smtp_tcp_err(void *arg, err_t err); +static err_t smtp_tcp_poll(void *arg, struct altcp_pcb *pcb); +static err_t smtp_tcp_sent(void *arg, struct altcp_pcb *pcb, u16_t len); +static err_t smtp_tcp_connected(void *arg, struct altcp_pcb *pcb, err_t err); +#if LWIP_DNS +static void smtp_dns_found(const char* hostname, const ip_addr_t *ipaddr, void *arg); +#endif /* LWIP_DNS */ +#if SMTP_SUPPORT_AUTH_PLAIN || SMTP_SUPPORT_AUTH_LOGIN +static size_t smtp_base64_encode(char* target, size_t target_len, const char* source, size_t source_len); +#endif /* SMTP_SUPPORT_AUTH_PLAIN || SMTP_SUPPORT_AUTH_LOGIN */ +static enum smtp_session_state smtp_prepare_mail(struct smtp_session *s, u16_t *tx_buf_len); +static void smtp_send_body(struct smtp_session *s, struct altcp_pcb *pcb); +static void smtp_process(void *arg, struct altcp_pcb *pcb, struct pbuf *p); +#if SMTP_BODYDH +static void smtp_send_body_data_handler(struct smtp_session *s, struct altcp_pcb *pcb); +#endif /* SMTP_BODYDH */ + + +#ifdef LWIP_DEBUG +/** Convert an smtp result to a string */ +const char* +smtp_result_str(u8_t smtp_result) +{ + if (smtp_result >= LWIP_ARRAYSIZE(smtp_result_strs)) { + return "UNKNOWN"; + } + return smtp_result_strs[smtp_result]; +} + +/** Null-terminates the payload of p for printing out messages. + * WARNING: use this only if p is not needed any more as the last byte of + * payload is deleted! + */ +static const char* +smtp_pbuf_str(struct pbuf* p) +{ + if ((p == NULL) || (p->len == 0)) { + return ""; + } + ((char*)p->payload)[p->len] = 0; + return (const char*)p->payload; +} +#endif /* LWIP_DEBUG */ + +/** @ingroup smtp + * Set IP address or DNS name for next SMTP connection + * + * @param server IP address (in ASCII representation) or DNS name of the server + */ +err_t +smtp_set_server_addr(const char* server) +{ + size_t len = 0; + + LWIP_ASSERT_CORE_LOCKED(); + + if (server != NULL) { + /* strlen: returns length WITHOUT terminating 0 byte */ + len = strlen(server); + } + if (len > SMTP_MAX_SERVERNAME_LEN) { + return ERR_MEM; + } + if (len != 0) { + MEMCPY(smtp_server, server, len); + } + smtp_server[len] = 0; /* always OK because of smtp_server[SMTP_MAX_SERVERNAME_LEN + 1] */ + return ERR_OK; +} + +/** @ingroup smtp + * Set TCP port for next SMTP connection + * + * @param port TCP port + */ +void +smtp_set_server_port(u16_t port) +{ + LWIP_ASSERT_CORE_LOCKED(); + smtp_server_port = port; +} + +#if LWIP_ALTCP && LWIP_ALTCP_TLS +/** @ingroup smtp + * Set TLS configuration for next SMTP connection + * + * @param tls_config TLS configuration + */ +void +smtp_set_tls_config(struct altcp_tls_config *tls_config) +{ + LWIP_ASSERT_CORE_LOCKED(); + smtp_server_tls_config = tls_config; +} +#endif + +/** @ingroup smtp + * Set authentication parameters for next SMTP connection + * + * @param username login name as passed to the server + * @param pass password passed to the server together with username + */ +err_t +smtp_set_auth(const char* username, const char* pass) +{ + size_t uname_len = 0; + size_t pass_len = 0; + + LWIP_ASSERT_CORE_LOCKED(); + + memset(smtp_auth_plain, 0xfa, 64); + if (username != NULL) { + uname_len = strlen(username); + if (uname_len > SMTP_MAX_USERNAME_LEN) { + LWIP_DEBUGF(SMTP_DEBUG_SERIOUS, ("Username is too long, %d instead of %d\n", + (int)uname_len, SMTP_MAX_USERNAME_LEN)); + return ERR_ARG; + } + } + if (pass != NULL) { +#if SMTP_SUPPORT_AUTH_LOGIN || SMTP_SUPPORT_AUTH_PLAIN + pass_len = strlen(pass); + if (pass_len > SMTP_MAX_PASS_LEN) { + LWIP_DEBUGF(SMTP_DEBUG_SERIOUS, ("Password is too long, %d instead of %d\n", + (int)uname_len, SMTP_MAX_USERNAME_LEN)); + return ERR_ARG; + } +#else /* SMTP_SUPPORT_AUTH_LOGIN || SMTP_SUPPORT_AUTH_PLAIN */ + LWIP_DEBUGF(SMTP_DEBUG_WARN, ("Password not supported as no authentication methods are activated\n")); +#endif /* SMTP_SUPPORT_AUTH_LOGIN || SMTP_SUPPORT_AUTH_PLAIN */ + } + *smtp_auth_plain = 0; + if (username != NULL) { + smtp_username = smtp_auth_plain + 1; + strcpy(smtp_username, username); + } + if (pass != NULL) { + smtp_pass = smtp_auth_plain + uname_len + 2; + strcpy(smtp_pass, pass); + } + smtp_auth_plain_len = uname_len + pass_len + 2; + + return ERR_OK; +} + +#if SMTP_BODYDH +static void smtp_free_struct(struct smtp_session *s) +{ + if (s->bodydh != NULL) { + SMTP_BODYDH_FREE(s->bodydh); + } + SMTP_STATE_FREE(s); +} +#else /* SMTP_BODYDH */ +#define smtp_free_struct(x) SMTP_STATE_FREE(x) +#endif /* SMTP_BODYDH */ + +static struct altcp_pcb* +smtp_setup_pcb(struct smtp_session *s, const ip_addr_t* remote_ip) +{ + struct altcp_pcb* pcb; + LWIP_UNUSED_ARG(remote_ip); + +#if LWIP_ALTCP && LWIP_ALTCP_TLS + if (smtp_server_tls_config) { + pcb = altcp_tls_new(smtp_server_tls_config, IP_GET_TYPE(remote_ip)); + } else +#endif + { + pcb = altcp_tcp_new_ip_type(IP_GET_TYPE(remote_ip)); + } + if (pcb != NULL) { + altcp_arg(pcb, s); + altcp_recv(pcb, smtp_tcp_recv); + altcp_err(pcb, smtp_tcp_err); + altcp_poll(pcb, smtp_tcp_poll, SMTP_POLL_INTERVAL); + altcp_sent(pcb, smtp_tcp_sent); + } + return pcb; +} + +/** The actual mail-sending function, called by smtp_send_mail and + * smtp_send_mail_static after setting up the struct smtp_session. + */ +static err_t +smtp_send_mail_alloced(struct smtp_session *s) +{ + err_t err; + struct altcp_pcb* pcb = NULL; + ip_addr_t addr; + + LWIP_ASSERT("no smtp_session supplied", s != NULL); + +#if SMTP_CHECK_DATA + /* check that body conforms to RFC: + * - convert all single-CR or -LF in body to CRLF + * - only 7-bit ASCII is allowed + */ + if (smtp_verify(s->to, s->to_len, 0) != ERR_OK) { + err = ERR_ARG; + goto leave; + } + if (smtp_verify(s->from, s->from_len, 0) != ERR_OK) { + err = ERR_ARG; + goto leave; + } + if (smtp_verify(s->subject, s->subject_len, 0) != ERR_OK) { + err = ERR_ARG; + goto leave; + } +#if SMTP_BODYDH + if (s->bodydh == NULL) +#endif /* SMTP_BODYDH */ + { + if (smtp_verify(s->body, s->body_len, 0) != ERR_OK) { + err = ERR_ARG; + goto leave; + } + } +#endif /* SMTP_CHECK_DATA */ + +#if SMTP_COPY_AUTHDATA + /* copy auth data, ensuring the first byte is always zero */ + MEMCPY(s->auth_plain + 1, smtp_auth_plain + 1, smtp_auth_plain_len - 1); + s->auth_plain_len = smtp_auth_plain_len; + /* default username and pass is empty string */ + s->username = s->auth_plain; + s->pass = s->auth_plain; + if (smtp_username != NULL) { + s->username += smtp_username - smtp_auth_plain; + } + if (smtp_pass != NULL) { + s->pass += smtp_pass - smtp_auth_plain; + } +#endif /* SMTP_COPY_AUTHDATA */ + + s->state = SMTP_NULL; + s->timer = SMTP_TIMEOUT; + +#if LWIP_DNS + err = dns_gethostbyname(smtp_server, &addr, smtp_dns_found, s); +#else /* LWIP_DNS */ + err = ipaddr_aton(smtp_server, &addr) ? ERR_OK : ERR_ARG; +#endif /* LWIP_DNS */ + if (err == ERR_OK) { + pcb = smtp_setup_pcb(s, &addr); + if (pcb == NULL) { + err = ERR_MEM; + goto leave; + } + err = altcp_connect(pcb, &addr, smtp_server_port, smtp_tcp_connected); + if (err != ERR_OK) { + LWIP_DEBUGF(SMTP_DEBUG_WARN_STATE, ("tcp_connect failed: %d\n", (int)err)); + goto deallocate_and_leave; + } + } else if (err != ERR_INPROGRESS) { + LWIP_DEBUGF(SMTP_DEBUG_WARN_STATE, ("dns_gethostbyname failed: %d\n", (int)err)); + goto deallocate_and_leave; + } + return ERR_OK; + +deallocate_and_leave: + if (pcb != NULL) { + altcp_arg(pcb, NULL); + altcp_close(pcb); + } +leave: + smtp_free_struct(s); + /* no need to call the callback here since we return != ERR_OK */ + return err; +} + +/** @ingroup smtp + * Send an email via the currently selected server, username and password. + * + * @param from source email address (must be NULL-terminated) + * @param to target email address (must be NULL-terminated) + * @param subject email subject (must be NULL-terminated) + * @param body email body (must be NULL-terminated) + * @param callback_fn callback function + * @param callback_arg user argument to callback_fn + * @returns - ERR_OK if structures were allocated and no error occurred starting the connection + * (this does not mean the email has been successfully sent!) + * - another err_t on error. + */ +err_t +smtp_send_mail(const char* from, const char* to, const char* subject, const char* body, + smtp_result_fn callback_fn, void* callback_arg) +{ + struct smtp_session* s; + size_t from_len = strlen(from); + size_t to_len = strlen(to); + size_t subject_len = strlen(subject); + size_t body_len = strlen(body); + size_t mem_len = sizeof(struct smtp_session); + char *sfrom, *sto, *ssubject, *sbody; + + LWIP_ASSERT_CORE_LOCKED(); + + mem_len += from_len + to_len + subject_len + body_len + 4; + if (mem_len > 0xffff) { + /* too long! */ + return ERR_MEM; + } + + /* Allocate memory to keep this email's session state */ + s = (struct smtp_session *)SMTP_STATE_MALLOC((mem_size_t)mem_len); + if (s == NULL) { + return ERR_MEM; + } + /* initialize the structure */ + memset(s, 0, mem_len); + s->from = sfrom = (char*)s + sizeof(struct smtp_session); + s->from_len = (u16_t)from_len; + s->to = sto = sfrom + from_len + 1; + s->to_len = (u16_t)to_len; + s->subject = ssubject = sto + to_len + 1; + s->subject_len = (u16_t)subject_len; + s->body = sbody = ssubject + subject_len + 1; + s->body_len = (u16_t)body_len; + /* copy source and target email address */ + /* cast to size_t is a hack to cast away constness */ + MEMCPY(sfrom, from, from_len + 1); + MEMCPY(sto, to, to_len + 1); + MEMCPY(ssubject, subject, subject_len + 1); + MEMCPY(sbody, body, body_len + 1); + + s->callback_fn = callback_fn; + s->callback_arg = callback_arg; + + /* call the actual implementation of this function */ + return smtp_send_mail_alloced(s); +} + +/** @ingroup smtp + * Same as smtp_send_mail, but doesn't copy from, to, subject and body into + * an internal buffer to save memory. + * WARNING: the above data must stay untouched until the callback function is + * called (unless the function returns != ERR_OK) + */ +err_t +smtp_send_mail_static(const char *from, const char* to, const char* subject, + const char* body, smtp_result_fn callback_fn, void* callback_arg) +{ + struct smtp_session* s; + size_t len; + + LWIP_ASSERT_CORE_LOCKED(); + + s = (struct smtp_session*)SMTP_STATE_MALLOC(sizeof(struct smtp_session)); + if (s == NULL) { + return ERR_MEM; + } + memset(s, 0, sizeof(struct smtp_session)); + /* initialize the structure */ + s->from = from; + len = strlen(from); + LWIP_ASSERT("string is too long", len <= 0xffff); + s->from_len = (u16_t)len; + s->to = to; + len = strlen(to); + LWIP_ASSERT("string is too long", len <= 0xffff); + s->to_len = (u16_t)len; + s->subject = subject; + len = strlen(subject); + LWIP_ASSERT("string is too long", len <= 0xffff); + s->subject_len = (u16_t)len; + s->body = body; + len = strlen(body); + LWIP_ASSERT("string is too long", len <= 0xffff); + s->body_len = (u16_t)len; + s->callback_fn = callback_fn; + s->callback_arg = callback_arg; + /* call the actual implementation of this function */ + return smtp_send_mail_alloced(s); +} + + +/** @ingroup smtp + * Same as smtp_send_mail but takes a struct smtp_send_request as single + * parameter which contains all the other parameters. + * To be used with tcpip_callback to send mail from interrupt context or from + * another thread. + * + * WARNING: server and authentication must stay untouched until this function has run! + * + * Usage example: + * - allocate a struct smtp_send_request (in a way that is allowed in interrupt context) + * - fill the members of the struct as if calling smtp_send_mail + * - specify a callback_function + * - set callback_arg to the structure itself + * - call this function + * - wait for the callback function to be called + * - in the callback function, deallocate the structure (passed as arg) + */ +void +smtp_send_mail_int(void *arg) +{ + struct smtp_send_request *req = (struct smtp_send_request*)arg; + err_t err; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("smtp_send_mail_int: no argument given", arg != NULL); + + if (req->static_data) { + err = smtp_send_mail_static(req->from, req->to, req->subject, req->body, + req->callback_fn, req->callback_arg); + } else { + err = smtp_send_mail(req->from, req->to, req->subject, req->body, + req->callback_fn, req->callback_arg); + } + if ((err != ERR_OK) && (req->callback_fn != NULL)) { + req->callback_fn(req->callback_arg, SMTP_RESULT_ERR_UNKNOWN, 0, err); + } +} + +#if SMTP_CHECK_DATA +/** Verify that a given string conforms to the SMTP rules + * (7-bit only, no single CR or LF, + * @todo: no line consisting of a single dot only) + */ +static err_t +smtp_verify(const char *data, size_t data_len, u8_t linebreaks_allowed) +{ + size_t i; + u8_t last_was_cr = 0; + for (i = 0; i < data_len; i++) { + char current = data[i]; + if ((current & 0x80) != 0) { + LWIP_DEBUGF(SMTP_DEBUG_WARN, ("smtp_verify: no 8-bit data supported: %s\n", data)); + return ERR_ARG; + } + if (current == '\r') { + if (!linebreaks_allowed) { + LWIP_DEBUGF(SMTP_DEBUG_WARN, ("smtp_verify: found CR where no linebreaks allowed: %s\n", data)); + return ERR_ARG; + } + if (last_was_cr) { + LWIP_DEBUGF(SMTP_DEBUG_WARN, ("smtp_verify: found double CR: %s\n", data)); + return ERR_ARG; + } + last_was_cr = 1; + } else { + if (current == '\n') { + if (!last_was_cr) { + LWIP_DEBUGF(SMTP_DEBUG_WARN, ("smtp_verify: found LF without CR before: %s\n", data)); + return ERR_ARG; + } + } + last_was_cr = 0; + } + } + return ERR_OK; +} +#endif /* SMTP_CHECK_DATA */ + +/** Frees the smtp_session and calls the callback function */ +static void +smtp_free(struct smtp_session *s, u8_t result, u16_t srv_err, err_t err) +{ + smtp_result_fn fn = s->callback_fn; + void *arg = s->callback_arg; + if (s->p != NULL) { + pbuf_free(s->p); + } + smtp_free_struct(s); + if (fn != NULL) { + fn(arg, result, srv_err, err); + } +} + +/** Try to close a pcb and free the arg if successful */ +static void +smtp_close(struct smtp_session *s, struct altcp_pcb *pcb, u8_t result, + u16_t srv_err, err_t err) +{ + if (pcb != NULL) { + altcp_arg(pcb, NULL); + if (altcp_close(pcb) == ERR_OK) { + if (s != NULL) { + smtp_free(s, result, srv_err, err); + } + } else { + /* close failed, set back arg */ + altcp_arg(pcb, s); + } + } else { + if (s != NULL) { + smtp_free(s, result, srv_err, err); + } + } +} + +/** Raw API TCP err callback: pcb is already deallocated */ +static void +smtp_tcp_err(void *arg, err_t err) +{ + LWIP_UNUSED_ARG(err); + if (arg != NULL) { + LWIP_DEBUGF(SMTP_DEBUG_WARN_STATE, ("smtp_tcp_err: connection reset by remote host\n")); + smtp_free((struct smtp_session*)arg, SMTP_RESULT_ERR_CLOSED, 0, err); + } +} + +/** Raw API TCP poll callback */ +static err_t +smtp_tcp_poll(void *arg, struct altcp_pcb *pcb) +{ + if (arg != NULL) { + struct smtp_session *s = (struct smtp_session*)arg; + if (s->timer != 0) { + s->timer--; + } + } + smtp_process(arg, pcb, NULL); + return ERR_OK; +} + +/** Raw API TCP sent callback */ +static err_t +smtp_tcp_sent(void *arg, struct altcp_pcb *pcb, u16_t len) +{ + LWIP_UNUSED_ARG(len); + + smtp_process(arg, pcb, NULL); + + return ERR_OK; +} + +/** Raw API TCP recv callback */ +static err_t +smtp_tcp_recv(void *arg, struct altcp_pcb *pcb, struct pbuf *p, err_t err) +{ + LWIP_UNUSED_ARG(err); + if (p != NULL) { + altcp_recved(pcb, p->tot_len); + smtp_process(arg, pcb, p); + } else { + LWIP_DEBUGF(SMTP_DEBUG_WARN_STATE, ("smtp_tcp_recv: connection closed by remote host\n")); + smtp_close((struct smtp_session*)arg, pcb, SMTP_RESULT_ERR_CLOSED, 0, err); + } + return ERR_OK; +} + +static err_t +smtp_tcp_connected(void *arg, struct altcp_pcb *pcb, err_t err) +{ + LWIP_UNUSED_ARG(arg); + + if (err == ERR_OK) { + LWIP_DEBUGF(SMTP_DEBUG_STATE, ("smtp_connected: Waiting for 220\n")); + } else { + /* shouldn't happen, but we still check 'err', only to be sure */ + LWIP_DEBUGF(SMTP_DEBUG_WARN, ("smtp_connected: %d\n", (int)err)); + smtp_close((struct smtp_session*)arg, pcb, SMTP_RESULT_ERR_CONNECT, 0, err); + } + return ERR_OK; +} + +#if LWIP_DNS +/** DNS callback + * If ipaddr is non-NULL, resolving succeeded, otherwise it failed. + */ +static void +smtp_dns_found(const char* hostname, const ip_addr_t *ipaddr, void *arg) +{ + struct smtp_session *s = (struct smtp_session*)arg; + struct altcp_pcb *pcb; + err_t err; + u8_t result; + + LWIP_UNUSED_ARG(hostname); + + if (ipaddr != NULL) { + pcb = smtp_setup_pcb(s, ipaddr); + if (pcb != NULL) { + LWIP_DEBUGF(SMTP_DEBUG_STATE, ("smtp_dns_found: hostname resolved, connecting\n")); + err = altcp_connect(pcb, ipaddr, smtp_server_port, smtp_tcp_connected); + if (err == ERR_OK) { + return; + } + LWIP_DEBUGF(SMTP_DEBUG_WARN_STATE, ("tcp_connect failed: %d\n", (int)err)); + result = SMTP_RESULT_ERR_CONNECT; + } else { + LWIP_DEBUGF(SMTP_DEBUG_STATE, ("smtp_dns_found: failed to allocate tcp pcb\n")); + result = SMTP_RESULT_ERR_MEM; + err = ERR_MEM; + } + } else { + LWIP_DEBUGF(SMTP_DEBUG_WARN_STATE, ("smtp_dns_found: failed to resolve hostname: %s\n", + hostname)); + pcb = NULL; + result = SMTP_RESULT_ERR_HOSTNAME; + err = ERR_ARG; + } + smtp_close(s, pcb, result, 0, err); +} +#endif /* LWIP_DNS */ + +#if SMTP_SUPPORT_AUTH_PLAIN || SMTP_SUPPORT_AUTH_LOGIN + +/** Table 6-bit-index-to-ASCII used for base64-encoding */ +static const char base64_table[] = { + 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', + 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', + 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', + 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', + 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', + 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '+', '/' +}; + +/** Base64 encoding */ +static size_t +smtp_base64_encode(char* target, size_t target_len, const char* source, size_t source_len) +{ + size_t i; + s8_t j; + size_t target_idx = 0; + size_t longer = (source_len % 3) ? (3 - (source_len % 3)) : 0; + size_t source_len_b64 = source_len + longer; + size_t len = (((source_len_b64) * 4) / 3); + u8_t x = 5; + u8_t current = 0; + LWIP_UNUSED_ARG(target_len); + + LWIP_ASSERT("target_len is too short", target_len >= len); + + for (i = 0; i < source_len_b64; i++) { + u8_t b = (i < source_len ? (u8_t)source[i] : 0); + for (j = 7; j >= 0; j--, x--) { + if ((b & (1 << j)) != 0) { + current = (u8_t)(current | (1U << x)); + } + if (x == 0) { + target[target_idx++] = base64_table[current]; + x = 6; + current = 0; + } + } + } + for (i = len - longer; i < len; i++) { + target[i] = '='; + } + return len; +} +#endif /* SMTP_SUPPORT_AUTH_PLAIN || SMTP_SUPPORT_AUTH_LOGIN */ + +/** Parse pbuf to see if it contains the beginning of an answer. + * If so, it returns the contained response code as number between 1 and 999. + * If not, zero is returned. + * + * @param s smtp session struct + */ +static u16_t +smtp_is_response(struct smtp_session *s) +{ + char digits[4]; + long num; + + if (s->p == NULL) { + return 0; + } + /* copy three digits and convert them to int */ + if (pbuf_copy_partial(s->p, digits, 3, 0) != 3) { + /* pbuf was too short */ + return 0; + } + digits[3] = 0; + num = strtol(digits, NULL, 10); + if ((num <= 0) || (num >= 1000)) { + /* failed to find response code at start of line */ + return 0; + } + return (u16_t)num; +} + +/** Parse pbuf to see if it contains a fully received answer. + * If one is found, ERR_OK is returned. + * If none is found, ERR_VAL is returned. + * + * A fully received answer is a 3-digit number followed by a space, + * some string and a CRLF as line ending. + * + * @param s smtp session struct + */ +static err_t +smtp_is_response_finished(struct smtp_session *s) +{ + u8_t sp; + u16_t crlf; + u16_t offset; + + if (s->p == NULL) { + return ERR_VAL; + } + offset = 0; +again: + /* We could check the response number here, but we trust the + * protocol definition which says the client can rely on it being + * the same on every line. */ + + /* find CRLF */ + if (offset > 0xFFFF - 4) { + /* would overflow */ + return ERR_VAL; + } + crlf = pbuf_memfind(s->p, SMTP_CRLF, SMTP_CRLF_LEN, (u16_t)(offset + 4)); + if (crlf == 0xFFFF) { + /* no CRLF found */ + return ERR_VAL; + } + sp = pbuf_get_at(s->p, (u16_t)(offset + 3)); + if (sp == '-') { + /* no space after response code -> try next line */ + offset = (u16_t)(crlf + 2); + if (offset < crlf) { + /* overflow */ + return ERR_VAL; + } + goto again; + } else if (sp == ' ') { + /* CRLF found after response code + space -> valid response */ + return ERR_OK; + } + /* sp contains invalid character */ + return ERR_VAL; +} + +/** Prepare HELO/EHLO message */ +static enum smtp_session_state +smtp_prepare_helo(struct smtp_session *s, u16_t *tx_buf_len, struct altcp_pcb *pcb) +{ + size_t ipa_len; + const char *ipa = ipaddr_ntoa(altcp_get_ip(pcb, 1)); + LWIP_ASSERT("ipaddr_ntoa returned NULL", ipa != NULL); + ipa_len = strlen(ipa); + LWIP_ASSERT("string too long", ipa_len <= (SMTP_TX_BUF_LEN-SMTP_CMD_EHLO_1_LEN-SMTP_CMD_EHLO_2_LEN)); + + *tx_buf_len = (u16_t)(SMTP_CMD_EHLO_1_LEN + (u16_t)ipa_len + SMTP_CMD_EHLO_2_LEN); + LWIP_ASSERT("tx_buf overflow detected", *tx_buf_len <= SMTP_TX_BUF_LEN); + + SMEMCPY(s->tx_buf, SMTP_CMD_EHLO_1, SMTP_CMD_EHLO_1_LEN); + MEMCPY(&s->tx_buf[SMTP_CMD_EHLO_1_LEN], ipa, ipa_len); + SMEMCPY(&s->tx_buf[SMTP_CMD_EHLO_1_LEN + ipa_len], SMTP_CMD_EHLO_2, SMTP_CMD_EHLO_2_LEN); + return SMTP_HELO; +} + +#if SMTP_SUPPORT_AUTH_PLAIN || SMTP_SUPPORT_AUTH_LOGIN +/** Parse last server response (in rx_buf) for supported authentication method, + * create data to send out (to tx_buf), set tx_data_len correctly + * and return the next state. + */ +static enum smtp_session_state +smtp_prepare_auth_or_mail(struct smtp_session *s, u16_t *tx_buf_len) +{ + /* check response for supported authentication method */ + u16_t auth = pbuf_strstr(s->p, SMTP_KEYWORD_AUTH_SP); + if (auth == 0xFFFF) { + auth = pbuf_strstr(s->p, SMTP_KEYWORD_AUTH_EQ); + } + if (auth != 0xFFFF) { + u16_t crlf = pbuf_memfind(s->p, SMTP_CRLF, SMTP_CRLF_LEN, auth); + if ((crlf != 0xFFFF) && (crlf > auth)) { + /* use tx_buf temporarily */ + u16_t copied = pbuf_copy_partial(s->p, s->tx_buf, (u16_t)(crlf - auth), auth); + if (copied != 0) { + char *sep = s->tx_buf + SMTP_KEYWORD_AUTH_LEN; + s->tx_buf[copied] = 0; +#if SMTP_SUPPORT_AUTH_PLAIN + /* favour PLAIN over LOGIN since it involves less requests */ + if (strstr(sep, SMTP_AUTH_PARAM_PLAIN) != NULL) { + size_t auth_len; + /* server supports AUTH PLAIN */ + SMEMCPY(s->tx_buf, SMTP_CMD_AUTHPLAIN_1, SMTP_CMD_AUTHPLAIN_1_LEN); + + /* add base64-encoded string "\0username\0password" */ + auth_len = smtp_base64_encode(&s->tx_buf[SMTP_CMD_AUTHPLAIN_1_LEN], + SMTP_TX_BUF_LEN - SMTP_CMD_AUTHPLAIN_1_LEN, SMTP_AUTH_PLAIN_DATA(s), + SMTP_AUTH_PLAIN_LEN(s)); + LWIP_ASSERT("string too long", auth_len <= (SMTP_TX_BUF_LEN-SMTP_CMD_AUTHPLAIN_1_LEN-SMTP_CMD_AUTHPLAIN_2_LEN)); + *tx_buf_len = (u16_t)(SMTP_CMD_AUTHPLAIN_1_LEN + SMTP_CMD_AUTHPLAIN_2_LEN + (u16_t)auth_len); + SMEMCPY(&s->tx_buf[SMTP_CMD_AUTHPLAIN_1_LEN + auth_len], SMTP_CMD_AUTHPLAIN_2, + SMTP_CMD_AUTHPLAIN_2_LEN); + return SMTP_AUTH_PLAIN; + } else +#endif /* SMTP_SUPPORT_AUTH_PLAIN */ + { +#if SMTP_SUPPORT_AUTH_LOGIN + if (strstr(sep, SMTP_AUTH_PARAM_LOGIN) != NULL) { + /* server supports AUTH LOGIN */ + *tx_buf_len = SMTP_CMD_AUTHLOGIN_LEN; + SMEMCPY(s->tx_buf, SMTP_CMD_AUTHLOGIN, SMTP_CMD_AUTHLOGIN_LEN); + return SMTP_AUTH_LOGIN_UNAME; + } +#endif /* SMTP_SUPPORT_AUTH_LOGIN */ + } + } + } + } + /* server didnt's send correct keywords for AUTH, try sending directly */ + return smtp_prepare_mail(s, tx_buf_len); +} +#endif /* SMTP_SUPPORT_AUTH_PLAIN || SMTP_SUPPORT_AUTH_LOGIN */ + +#if SMTP_SUPPORT_AUTH_LOGIN +/** Send base64-encoded username */ +static enum smtp_session_state +smtp_prepare_auth_login_uname(struct smtp_session *s, u16_t *tx_buf_len) +{ + size_t base64_len = smtp_base64_encode(s->tx_buf, SMTP_TX_BUF_LEN, + SMTP_USERNAME(s), strlen(SMTP_USERNAME(s))); + /* @todo: support base64-encoded longer than 64k */ + LWIP_ASSERT("string too long", base64_len <= 0xffff); + LWIP_ASSERT("tx_buf overflow detected", base64_len <= SMTP_TX_BUF_LEN - SMTP_CRLF_LEN); + *tx_buf_len = (u16_t)(base64_len + SMTP_CRLF_LEN); + + SMEMCPY(&s->tx_buf[base64_len], SMTP_CRLF, SMTP_CRLF_LEN); + s->tx_buf[*tx_buf_len] = 0; + return SMTP_AUTH_LOGIN_PASS; +} + +/** Send base64-encoded password */ +static enum smtp_session_state +smtp_prepare_auth_login_pass(struct smtp_session *s, u16_t *tx_buf_len) +{ + size_t base64_len = smtp_base64_encode(s->tx_buf, SMTP_TX_BUF_LEN, + SMTP_PASS(s), strlen(SMTP_PASS(s))); + /* @todo: support base64-encoded longer than 64k */ + LWIP_ASSERT("string too long", base64_len <= 0xffff); + LWIP_ASSERT("tx_buf overflow detected", base64_len <= SMTP_TX_BUF_LEN - SMTP_CRLF_LEN); + *tx_buf_len = (u16_t)(base64_len + SMTP_CRLF_LEN); + + SMEMCPY(&s->tx_buf[base64_len], SMTP_CRLF, SMTP_CRLF_LEN); + s->tx_buf[*tx_buf_len] = 0; + return SMTP_AUTH_LOGIN; +} +#endif /* SMTP_SUPPORT_AUTH_LOGIN */ + +/** Prepare MAIL message */ +static enum smtp_session_state +smtp_prepare_mail(struct smtp_session *s, u16_t *tx_buf_len) +{ + char *target = s->tx_buf; + LWIP_ASSERT("tx_buf overflow detected", s->from_len <= (SMTP_TX_BUF_LEN - SMTP_CMD_MAIL_1_LEN - SMTP_CMD_MAIL_2_LEN)); + *tx_buf_len = (u16_t)(SMTP_CMD_MAIL_1_LEN + SMTP_CMD_MAIL_2_LEN + s->from_len); + target[*tx_buf_len] = 0; + + SMEMCPY(target, SMTP_CMD_MAIL_1, SMTP_CMD_MAIL_1_LEN); + target += SMTP_CMD_MAIL_1_LEN; + MEMCPY(target, s->from, s->from_len); + target += s->from_len; + SMEMCPY(target, SMTP_CMD_MAIL_2, SMTP_CMD_MAIL_2_LEN); + return SMTP_MAIL; +} + +/** Prepare RCPT message */ +static enum smtp_session_state +smtp_prepare_rcpt(struct smtp_session *s, u16_t *tx_buf_len) +{ + char *target = s->tx_buf; + LWIP_ASSERT("tx_buf overflow detected", s->to_len <= (SMTP_TX_BUF_LEN - SMTP_CMD_RCPT_1_LEN - SMTP_CMD_RCPT_2_LEN)); + *tx_buf_len = (u16_t)(SMTP_CMD_RCPT_1_LEN + SMTP_CMD_RCPT_2_LEN + s->to_len); + target[*tx_buf_len] = 0; + + SMEMCPY(target, SMTP_CMD_RCPT_1, SMTP_CMD_RCPT_1_LEN); + target += SMTP_CMD_RCPT_1_LEN; + MEMCPY(target, s->to, s->to_len); + target += s->to_len; + SMEMCPY(target, SMTP_CMD_RCPT_2, SMTP_CMD_RCPT_2_LEN); + return SMTP_RCPT; +} + +/** Prepare header of body */ +static enum smtp_session_state +smtp_prepare_header(struct smtp_session *s, u16_t *tx_buf_len) +{ + char *target = s->tx_buf; + int len = SMTP_CMD_HEADER_1_LEN + SMTP_CMD_HEADER_2_LEN + + SMTP_CMD_HEADER_3_LEN + SMTP_CMD_HEADER_4_LEN + s->from_len + s->to_len + + s->subject_len; + LWIP_ASSERT("tx_buf overflow detected", len > 0 && len <= SMTP_TX_BUF_LEN); + *tx_buf_len = (u16_t)len; + target[*tx_buf_len] = 0; + + SMEMCPY(target, SMTP_CMD_HEADER_1, SMTP_CMD_HEADER_1_LEN); + target += SMTP_CMD_HEADER_1_LEN; + MEMCPY(target, s->from, s->from_len); + target += s->from_len; + SMEMCPY(target, SMTP_CMD_HEADER_2, SMTP_CMD_HEADER_2_LEN); + target += SMTP_CMD_HEADER_2_LEN; + MEMCPY(target, s->to, s->to_len); + target += s->to_len; + SMEMCPY(target, SMTP_CMD_HEADER_3, SMTP_CMD_HEADER_3_LEN); + target += SMTP_CMD_HEADER_3_LEN; + MEMCPY(target, s->subject, s->subject_len); + target += s->subject_len; + SMEMCPY(target, SMTP_CMD_HEADER_4, SMTP_CMD_HEADER_4_LEN); + + return SMTP_BODY; +} + +/** Prepare QUIT message */ +static enum smtp_session_state +smtp_prepare_quit(struct smtp_session *s, u16_t *tx_buf_len) +{ + *tx_buf_len = SMTP_CMD_QUIT_LEN; + s->tx_buf[*tx_buf_len] = 0; + SMEMCPY(s->tx_buf, SMTP_CMD_QUIT, SMTP_CMD_QUIT_LEN); + LWIP_ASSERT("tx_buf overflow detected", *tx_buf_len <= SMTP_TX_BUF_LEN); + return SMTP_CLOSED; +} + +/** If in state SMTP_BODY, try to send more body data */ +static void +smtp_send_body(struct smtp_session *s, struct altcp_pcb *pcb) +{ + err_t err; + + if (s->state == SMTP_BODY) { +#if SMTP_BODYDH + if (s->bodydh) { + smtp_send_body_data_handler(s, pcb); + } else +#endif /* SMTP_BODYDH */ + { + u16_t send_len = (u16_t)(s->body_len - s->body_sent); + if (send_len > 0) { + u16_t snd_buf = altcp_sndbuf(pcb); + if (send_len > snd_buf) { + send_len = snd_buf; + } + if (send_len > 0) { + /* try to send something out */ + err = altcp_write(pcb, &s->body[s->body_sent], (u16_t)send_len, TCP_WRITE_FLAG_COPY); + if (err == ERR_OK) { + s->timer = SMTP_TIMEOUT_DATABLOCK; + s->body_sent = (u16_t)(s->body_sent + send_len); + if (s->body_sent < s->body_len) { + LWIP_DEBUGF(SMTP_DEBUG_STATE, ("smtp_send_body: %d of %d bytes written\n", + s->body_sent, s->body_len)); + } + } + } + } + } + if (s->body_sent == s->body_len) { + /* the whole body has been written, write last line */ + LWIP_DEBUGF(SMTP_DEBUG_STATE, ("smtp_send_body: body completely written (%d bytes), appending end-of-body\n", + s->body_len)); + err = altcp_write(pcb, SMTP_CMD_BODY_FINISHED, SMTP_CMD_BODY_FINISHED_LEN, 0); + if (err == ERR_OK) { + s->timer = SMTP_TIMEOUT_DATATERM; + LWIP_DEBUGF(SMTP_DEBUG_STATE, ("smtp_send_body: end-of-body written, changing state to %s\n", + smtp_state_str[SMTP_QUIT])); + /* last line written, change state, wait for confirmation */ + s->state = SMTP_QUIT; + } + } + } +} + +/** State machine-like implementation of an SMTP client. + */ +static void +smtp_process(void *arg, struct altcp_pcb *pcb, struct pbuf *p) +{ + struct smtp_session* s = (struct smtp_session*)arg; + u16_t response_code = 0; + u16_t tx_buf_len = 0; + enum smtp_session_state next_state; + + if (arg == NULL) { + /* already closed SMTP connection */ + if (p != NULL) { + LWIP_DEBUGF(SMTP_DEBUG_TRACE, ("Received %d bytes after closing: %s\n", + p->tot_len, smtp_pbuf_str(p))); + pbuf_free(p); + } + return; + } + + next_state = s->state; + + if (p != NULL) { + /* received data */ + if (s->p == NULL) { + s->p = p; + } else { + pbuf_cat(s->p, p); + } + } else { + /* idle timer, close connection if timed out */ + if (s->timer == 0) { + LWIP_DEBUGF(SMTP_DEBUG_WARN_STATE, ("smtp_process: connection timed out, closing\n")); + smtp_close(s, pcb, SMTP_RESULT_ERR_TIMEOUT, 0, ERR_TIMEOUT); + return; + } + if (s->state == SMTP_BODY) { + smtp_send_body(s, pcb); + return; + } + } + response_code = smtp_is_response(s); + if (response_code) { + LWIP_DEBUGF(SMTP_DEBUG_TRACE, ("smtp_process: received response code: %d\n", response_code)); + if (smtp_is_response_finished(s) != ERR_OK) { + LWIP_DEBUGF(SMTP_DEBUG_TRACE, ("smtp_process: partly received response code: %d\n", response_code)); + /* wait for next packet to complete the respone */ + return; + } + } else { + if (s->p != NULL) { + LWIP_DEBUGF(SMTP_DEBUG_WARN, ("smtp_process: unknown data received (%s)\n", + smtp_pbuf_str(s->p))); + pbuf_free(s->p); + s->p = NULL; + } + return; + } + + switch(s->state) + { + case(SMTP_NULL): + /* wait for 220 */ + if (response_code == 220) { + /* then send EHLO */ + next_state = smtp_prepare_helo(s, &tx_buf_len, pcb); + } + break; + case(SMTP_HELO): + /* wait for 250 */ + if (response_code == 250) { +#if SMTP_SUPPORT_AUTH_PLAIN || SMTP_SUPPORT_AUTH_LOGIN + /* then send AUTH or MAIL */ + next_state = smtp_prepare_auth_or_mail(s, &tx_buf_len); + } + break; + case(SMTP_AUTH_LOGIN): + case(SMTP_AUTH_PLAIN): + /* wait for 235 */ + if (response_code == 235) { +#endif /* SMTP_SUPPORT_AUTH_PLAIN || SMTP_SUPPORT_AUTH_LOGIN */ + /* send MAIL */ + next_state = smtp_prepare_mail(s, &tx_buf_len); + } + break; +#if SMTP_SUPPORT_AUTH_LOGIN + case(SMTP_AUTH_LOGIN_UNAME): + /* wait for 334 Username */ + if (response_code == 334) { + if (pbuf_strstr(s->p, SMTP_RESP_LOGIN_UNAME) != 0xFFFF) { + /* send username */ + next_state = smtp_prepare_auth_login_uname(s, &tx_buf_len); + } + } + break; + case(SMTP_AUTH_LOGIN_PASS): + /* wait for 334 Password */ + if (response_code == 334) { + if (pbuf_strstr(s->p, SMTP_RESP_LOGIN_PASS) != 0xFFFF) { + /* send username */ + next_state = smtp_prepare_auth_login_pass(s, &tx_buf_len); + } + } + break; +#endif /* SMTP_SUPPORT_AUTH_LOGIN */ + case(SMTP_MAIL): + /* wait for 250 */ + if (response_code == 250) { + /* send RCPT */ + next_state = smtp_prepare_rcpt(s, &tx_buf_len); + } + break; + case(SMTP_RCPT): + /* wait for 250 */ + if (response_code == 250) { + /* send DATA */ + SMEMCPY(s->tx_buf, SMTP_CMD_DATA, SMTP_CMD_DATA_LEN); + tx_buf_len = SMTP_CMD_DATA_LEN; + next_state = SMTP_DATA; + } + break; + case(SMTP_DATA): + /* wait for 354 */ + if (response_code == 354) { + /* send email header */ + next_state = smtp_prepare_header(s, &tx_buf_len); + } + break; + case(SMTP_BODY): + /* nothing to be done here, handled somewhere else */ + break; + case(SMTP_QUIT): + /* wait for 250 */ + if (response_code == 250) { + /* send QUIT */ + next_state = smtp_prepare_quit(s, &tx_buf_len); + } + break; + case(SMTP_CLOSED): + /* nothing to do, wait for connection closed from server */ + return; + default: + LWIP_DEBUGF(SMTP_DEBUG_SERIOUS, ("Invalid state: %d/%s\n", (int)s->state, + smtp_state_str[s->state])); + break; + } + if (s->state == next_state) { + LWIP_DEBUGF(SMTP_DEBUG_WARN_STATE, ("smtp_process[%s]: unexpected response_code, closing: %d (%s)\n", + smtp_state_str[s->state], response_code, smtp_pbuf_str(s->p))); + /* close connection */ + smtp_close(s, pcb, SMTP_RESULT_ERR_SVR_RESP, response_code, ERR_OK); + return; + } + if (tx_buf_len > 0) { + SMTP_TX_BUF_MAX(tx_buf_len); + if (altcp_write(pcb, s->tx_buf, tx_buf_len, TCP_WRITE_FLAG_COPY) == ERR_OK) { + LWIP_DEBUGF(SMTP_DEBUG_TRACE, ("smtp_process[%s]: received command %d (%s)\n", + smtp_state_str[s->state], response_code, smtp_pbuf_str(s->p))); + LWIP_DEBUGF(SMTP_DEBUG_TRACE, ("smtp_process[%s]: sent %"U16_F" bytes: \"%s\"\n", + smtp_state_str[s->state], tx_buf_len, s->tx_buf)); + s->timer = SMTP_TIMEOUT; + pbuf_free(s->p); + s->p = NULL; + LWIP_DEBUGF(SMTP_DEBUG_STATE, ("smtp_process: changing state from %s to %s\n", + smtp_state_str[s->state], smtp_state_str[next_state])); + s->state = next_state; + if (next_state == SMTP_BODY) { + /* try to stream-send body data right now */ + smtp_send_body(s, pcb); + } else if (next_state == SMTP_CLOSED) { + /* sent out all data, delete structure */ + altcp_arg(pcb, NULL); + smtp_free(s, SMTP_RESULT_OK, 0, ERR_OK); + } + } + } +} + +#if SMTP_BODYDH +/** Elementary sub-function to send data + * + * @returns: BDHALLDATASENT all data has been written + * BDHSOMEDATASENT some data has been written + * 0 no data has been written + */ +static int +smtp_send_bodyh_data(struct altcp_pcb *pcb, const char **from, u16_t *howmany) +{ + err_t err; + u16_t len = *howmany; + + len = (u16_t)LWIP_MIN(len, altcp_sndbuf(pcb)); + err = altcp_write(pcb, *from, len, TCP_WRITE_FLAG_COPY); + if (err == ERR_OK) { + *from += len; + if ((*howmany -= len) > 0) { + return BDHSOMEDATASENT; + } + return BDHALLDATASENT; + } + return 0; +} + +/** Same as smtp_send_mail_static, but uses a callback function to send body data + */ +err_t +smtp_send_mail_bodycback(const char *from, const char* to, const char* subject, + smtp_bodycback_fn bodycback_fn, smtp_result_fn callback_fn, void* callback_arg) +{ + struct smtp_session* s; + size_t len; + + LWIP_ASSERT_CORE_LOCKED(); + + s = (struct smtp_session*)SMTP_STATE_MALLOC(sizeof(struct smtp_session)); + if (s == NULL) { + return ERR_MEM; + } + memset(s, 0, sizeof(struct smtp_session)); + s->bodydh = (struct smtp_bodydh_state*)SMTP_BODYDH_MALLOC(sizeof(struct smtp_bodydh_state)); + if (s->bodydh == NULL) { + SMTP_STATE_FREE(s); + return ERR_MEM; + } + memset(s->bodydh, 0, sizeof(struct smtp_bodydh_state)); + /* initialize the structure */ + s->from = from; + len = strlen(from); + LWIP_ASSERT("string is too long", len <= 0xffff); + s->from_len = (u16_t)len; + s->to = to; + len = strlen(to); + LWIP_ASSERT("string is too long", len <= 0xffff); + s->to_len = (u16_t)len; + s->subject = subject; + len = strlen(subject); + LWIP_ASSERT("string is too long", len <= 0xffff); + s->subject_len = (u16_t)len; + s->body = NULL; + s->callback_fn = callback_fn; + s->callback_arg = callback_arg; + s->bodydh->callback_fn = bodycback_fn; + s->bodydh->state = BDH_SENDING; + /* call the actual implementation of this function */ + return smtp_send_mail_alloced(s); +} + +static void +smtp_send_body_data_handler(struct smtp_session *s, struct altcp_pcb *pcb) +{ + struct smtp_bodydh_state *bdh; + int res = 0, ret; + LWIP_ASSERT("s != NULL", s != NULL); + bdh = s->bodydh; + LWIP_ASSERT("bodydh != NULL", bdh != NULL); + + /* resume any leftovers from prior memory constraints */ + if (s->body_len) { + LWIP_DEBUGF(SMTP_DEBUG_TRACE, ("smtp_send_body_data_handler: resume\n")); + if((res = smtp_send_bodyh_data(pcb, (const char **)&s->body, &s->body_len)) + != BDHALLDATASENT) { + s->body_sent = s->body_len - 1; + return; + } + } + ret = res; + /* all data on buffer has been queued, resume execution */ + if (bdh->state == BDH_SENDING) { + LWIP_DEBUGF(SMTP_DEBUG_TRACE, ("smtp_send_body_data_handler: run\n")); + do { + ret |= res; /* remember if we once queued something to send */ + bdh->exposed.length = 0; + if (bdh->callback_fn(s->callback_arg, &bdh->exposed) == BDH_DONE) { + bdh->state = BDH_STOP; + } + s->body = bdh->exposed.buffer; + s->body_len = bdh->exposed.length; + LWIP_DEBUGF(SMTP_DEBUG_TRACE, ("smtp_send_body_data_handler: trying to send %u bytes\n", (unsigned int)s->body_len)); + } while (s->body_len && + ((res = smtp_send_bodyh_data(pcb, (const char **)&s->body, &s->body_len)) == BDHALLDATASENT) + && (bdh->state != BDH_STOP)); + } + if ((bdh->state != BDH_SENDING) && (ret != BDHSOMEDATASENT)) { + LWIP_DEBUGF(SMTP_DEBUG_TRACE, ("smtp_send_body_data_handler: stop\n")); + s->body_sent = s->body_len; + } else { + LWIP_DEBUGF(SMTP_DEBUG_TRACE, ("smtp_send_body_data_handler: pause\n")); + s->body_sent = s->body_len - 1; + } +} +#endif /* SMTP_BODYDH */ + +#endif /* LWIP_TCP && LWIP_CALLBACK_API */ diff --git a/middleware/lwip/src/apps/snmp/snmp_asn1.c b/middleware/lwip/src/apps/snmp/snmp_asn1.c new file mode 100644 index 0000000..6df34db --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_asn1.c @@ -0,0 +1,704 @@ +/** + * @file + * Abstract Syntax Notation One (ISO 8824, 8825) encoding + * + * @todo not optimised (yet), favor correctness over speed, favor speed over size + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Christiaan Simons + * Martin Hentschel + */ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include "snmp_asn1.h" + +#define PBUF_OP_EXEC(code) \ + if ((code) != ERR_OK) { \ + return ERR_BUF; \ + } + +/** + * Encodes a TLV into a pbuf stream. + * + * @param pbuf_stream points to a pbuf stream + * @param tlv TLV to encode + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) encode + */ +err_t +snmp_ans1_enc_tlv(struct snmp_pbuf_stream *pbuf_stream, struct snmp_asn1_tlv *tlv) +{ + u8_t data; + u8_t length_bytes_required; + + /* write type */ + if ((tlv->type & SNMP_ASN1_DATATYPE_MASK) == SNMP_ASN1_DATATYPE_EXTENDED) { + /* extended format is not used by SNMP so we do not accept those values */ + return ERR_ARG; + } + if (tlv->type_len != 0) { + /* any other value as auto is not accepted for type (we always use one byte because extended syntax is prohibited) */ + return ERR_ARG; + } + + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, tlv->type)); + tlv->type_len = 1; + + /* write length */ + if (tlv->value_len <= 127) { + length_bytes_required = 1; + } else if (tlv->value_len <= 255) { + length_bytes_required = 2; + } else { + length_bytes_required = 3; + } + + /* check for forced min length */ + if (tlv->length_len > 0) { + if (tlv->length_len < length_bytes_required) { + /* unable to code requested length in requested number of bytes */ + return ERR_ARG; + } + + length_bytes_required = tlv->length_len; + } else { + tlv->length_len = length_bytes_required; + } + + if (length_bytes_required > 1) { + /* multi byte representation required */ + length_bytes_required--; + data = 0x80 | length_bytes_required; /* extended length definition, 1 length byte follows */ + + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, data)); + + while (length_bytes_required > 1) { + if (length_bytes_required == 2) { + /* append high byte */ + data = (u8_t)(tlv->value_len >> 8); + } else { + /* append leading 0x00 */ + data = 0x00; + } + + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, data)); + length_bytes_required--; + } + } + + /* append low byte */ + data = (u8_t)(tlv->value_len & 0xFF); + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, data)); + + return ERR_OK; +} + +/** + * Encodes raw data (octet string, opaque) into a pbuf chained ASN1 msg. + * + * @param pbuf_stream points to a pbuf stream + * @param raw_len raw data length + * @param raw points raw data + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) encode + */ +err_t +snmp_asn1_enc_raw(struct snmp_pbuf_stream *pbuf_stream, const u8_t *raw, u16_t raw_len) +{ + PBUF_OP_EXEC(snmp_pbuf_stream_writebuf(pbuf_stream, raw, raw_len)); + + return ERR_OK; +} + +/** + * Encodes u32_t (counter, gauge, timeticks) into a pbuf chained ASN1 msg. + * + * @param pbuf_stream points to a pbuf stream + * @param octets_needed encoding length (from snmp_asn1_enc_u32t_cnt()) + * @param value is the host order u32_t value to be encoded + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) encode + * + * @see snmp_asn1_enc_u32t_cnt() + */ +err_t +snmp_asn1_enc_u32t(struct snmp_pbuf_stream *pbuf_stream, u16_t octets_needed, u32_t value) +{ + if (octets_needed > 5) { + return ERR_ARG; + } + if (octets_needed == 5) { + /* not enough bits in 'value' add leading 0x00 */ + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, 0x00)); + octets_needed--; + } + + while (octets_needed > 1) { + octets_needed--; + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, (u8_t)(value >> (octets_needed << 3)))); + } + + /* (only) one least significant octet */ + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, (u8_t)value)); + + return ERR_OK; +} +/** + * Encodes s32_t integer into a pbuf chained ASN1 msg. + * + * @param pbuf_stream points to a pbuf stream + * @param octets_needed encoding length (from snmp_asn1_enc_s32t_cnt()) + * @param value is the host order s32_t value to be encoded + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) encode + * + * @see snmp_asn1_enc_s32t_cnt() + */ +err_t +snmp_asn1_enc_s32t(struct snmp_pbuf_stream *pbuf_stream, u16_t octets_needed, s32_t value) +{ + while (octets_needed > 1) { + octets_needed--; + + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, (u8_t)(value >> (octets_needed << 3)))); + } + + /* (only) one least significant octet */ + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, (u8_t)value)); + + return ERR_OK; +} + +/** + * Encodes object identifier into a pbuf chained ASN1 msg. + * + * @param pbuf_stream points to a pbuf stream + * @param oid points to object identifier array + * @param oid_len object identifier array length + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) encode + */ +err_t +snmp_asn1_enc_oid(struct snmp_pbuf_stream *pbuf_stream, const u32_t *oid, u16_t oid_len) +{ + if (oid_len > 1) { + /* write compressed first two sub id's */ + u32_t compressed_byte = ((oid[0] * 40) + oid[1]); + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, (u8_t)compressed_byte)); + oid_len -= 2; + oid += 2; + } else { + /* @bug: allow empty varbinds for symmetry (we must decode them for getnext), allow partial compression?? */ + /* ident_len <= 1, at least we need zeroDotZero (0.0) (ident_len == 2) */ + return ERR_ARG; + } + + while (oid_len > 0) { + u32_t sub_id; + u8_t shift, tail; + + oid_len--; + sub_id = *oid; + tail = 0; + shift = 28; + while (shift > 0) { + u8_t code; + + code = (u8_t)(sub_id >> shift); + if ((code != 0) || (tail != 0)) { + tail = 1; + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, code | 0x80)); + } + shift -= 7; + } + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, (u8_t)sub_id & 0x7F)); + + /* proceed to next sub-identifier */ + oid++; + } + return ERR_OK; +} + +/** + * Returns octet count for length. + * + * @param length parameter length + * @param octets_needed points to the return value + */ +void +snmp_asn1_enc_length_cnt(u16_t length, u8_t *octets_needed) +{ + if (length < 0x80U) { + *octets_needed = 1; + } else if (length < 0x100U) { + *octets_needed = 2; + } else { + *octets_needed = 3; + } +} + +/** + * Returns octet count for an u32_t. + * + * @param value value to be encoded + * @param octets_needed points to the return value + * + * @note ASN coded integers are _always_ signed. E.g. +0xFFFF is coded + * as 0x00,0xFF,0xFF. Note the leading sign octet. A positive value + * of 0xFFFFFFFF is preceded with 0x00 and the length is 5 octets!! + */ +void +snmp_asn1_enc_u32t_cnt(u32_t value, u16_t *octets_needed) +{ + if (value < 0x80UL) { + *octets_needed = 1; + } else if (value < 0x8000UL) { + *octets_needed = 2; + } else if (value < 0x800000UL) { + *octets_needed = 3; + } else if (value < 0x80000000UL) { + *octets_needed = 4; + } else { + *octets_needed = 5; + } +} + +/** + * Returns octet count for an s32_t. + * + * @param value value to be encoded + * @param octets_needed points to the return value + * + * @note ASN coded integers are _always_ signed. + */ +void +snmp_asn1_enc_s32t_cnt(s32_t value, u16_t *octets_needed) +{ + if (value < 0) { + value = ~value; + } + if (value < 0x80L) { + *octets_needed = 1; + } else if (value < 0x8000L) { + *octets_needed = 2; + } else if (value < 0x800000L) { + *octets_needed = 3; + } else { + *octets_needed = 4; + } +} + +/** + * Returns octet count for an object identifier. + * + * @param oid points to object identifier array + * @param oid_len object identifier array length + * @param octets_needed points to the return value + */ +void +snmp_asn1_enc_oid_cnt(const u32_t *oid, u16_t oid_len, u16_t *octets_needed) +{ + u32_t sub_id; + + *octets_needed = 0; + if (oid_len > 1) { + /* compressed prefix in one octet */ + (*octets_needed)++; + oid_len -= 2; + oid += 2; + } + while (oid_len > 0) { + oid_len--; + sub_id = *oid; + + sub_id >>= 7; + (*octets_needed)++; + while (sub_id > 0) { + sub_id >>= 7; + (*octets_needed)++; + } + oid++; + } +} + +/** + * Decodes a TLV from a pbuf stream. + * + * @param pbuf_stream points to a pbuf stream + * @param tlv returns decoded TLV + * @return ERR_OK if successful, ERR_VAL if we can't decode + */ +err_t +snmp_asn1_dec_tlv(struct snmp_pbuf_stream *pbuf_stream, struct snmp_asn1_tlv *tlv) +{ + u8_t data; + + /* decode type first */ + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + tlv->type = data; + + if ((tlv->type & SNMP_ASN1_DATATYPE_MASK) == SNMP_ASN1_DATATYPE_EXTENDED) { + /* extended format is not used by SNMP so we do not accept those values */ + return ERR_VAL; + } + tlv->type_len = 1; + + /* now, decode length */ + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + + if (data < 0x80) { /* short form */ + tlv->length_len = 1; + tlv->value_len = data; + } else if (data > 0x80) { /* long form */ + u8_t length_bytes = data - 0x80; + if (length_bytes > pbuf_stream->length) { + return ERR_VAL; + } + tlv->length_len = length_bytes + 1; /* this byte + defined number of length bytes following */ + tlv->value_len = 0; + + while (length_bytes > 0) { + /* we only support up to u16.maxvalue-1 (2 bytes) but have to accept leading zero bytes */ + if (tlv->value_len > 0xFF) { + return ERR_VAL; + } + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + tlv->value_len <<= 8; + tlv->value_len |= data; + + /* take care for special value used for indefinite length */ + if (tlv->value_len == 0xFFFF) { + return ERR_VAL; + } + + length_bytes--; + } + } else { /* data == 0x80 indefinite length form */ + /* (not allowed for SNMP; RFC 1157, 3.2.2) */ + return ERR_VAL; + } + + return ERR_OK; +} + +/** + * Decodes positive integer (counter, gauge, timeticks) into u32_t. + * + * @param pbuf_stream points to a pbuf stream + * @param len length of the coded integer field + * @param value return host order integer + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) decode + * + * @note ASN coded integers are _always_ signed. E.g. +0xFFFF is coded + * as 0x00,0xFF,0xFF. Note the leading sign octet. A positive value + * of 0xFFFFFFFF is preceded with 0x00 and the length is 5 octets!! + */ +err_t +snmp_asn1_dec_u32t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u32_t *value) +{ + u8_t data; + + if ((len > 0) && (len <= 5)) { + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + + /* expecting sign bit to be zero, only unsigned please! */ + if (((len == 5) && (data == 0x00)) || ((len < 5) && ((data & 0x80) == 0))) { + *value = data; + len--; + + while (len > 0) { + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + len--; + + *value <<= 8; + *value |= data; + } + + return ERR_OK; + } + } + + return ERR_VAL; +} + +/** + * Decodes integer into s32_t. + * + * @param pbuf_stream points to a pbuf stream + * @param len length of the coded integer field + * @param value return host order integer + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) decode + * + * @note ASN coded integers are _always_ signed! + */ +err_t +snmp_asn1_dec_s32t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, s32_t *value) +{ + u8_t data; + + if ((len > 0) && (len < 5)) { + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + + if (data & 0x80) { + /* negative, start from -1 */ + *value = -1; + *value = (*value << 8) | data; + } else { + /* positive, start from 0 */ + *value = data; + } + len--; + /* shift in the remaining value */ + while (len > 0) { + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + *value = (*value << 8) | data; + len--; + } + return ERR_OK; + } + + return ERR_VAL; +} + +/** + * Decodes object identifier from incoming message into array of u32_t. + * + * @param pbuf_stream points to a pbuf stream + * @param len length of the coded object identifier + * @param oid return decoded object identifier + * @param oid_len return decoded object identifier length + * @param oid_max_len size of oid buffer + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) decode + */ +err_t +snmp_asn1_dec_oid(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u32_t *oid, u8_t *oid_len, u8_t oid_max_len) +{ + u32_t *oid_ptr; + u8_t data; + + *oid_len = 0; + oid_ptr = oid; + if (len > 0) { + if (oid_max_len < 2) { + return ERR_MEM; + } + + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + len--; + + /* first compressed octet */ + if (data == 0x2B) { + /* (most) common case 1.3 (iso.org) */ + *oid_ptr = 1; + oid_ptr++; + *oid_ptr = 3; + oid_ptr++; + } else if (data < 40) { + *oid_ptr = 0; + oid_ptr++; + *oid_ptr = data; + oid_ptr++; + } else if (data < 80) { + *oid_ptr = 1; + oid_ptr++; + *oid_ptr = data - 40; + oid_ptr++; + } else { + *oid_ptr = 2; + oid_ptr++; + *oid_ptr = data - 80; + oid_ptr++; + } + *oid_len = 2; + } else { + /* accepting zero length identifiers e.g. for getnext operation. uncommon but valid */ + return ERR_OK; + } + + while ((len > 0) && (*oid_len < oid_max_len)) { + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + len--; + + if ((data & 0x80) == 0x00) { + /* sub-identifier uses single octet */ + *oid_ptr = data; + } else { + /* sub-identifier uses multiple octets */ + u32_t sub_id = (data & ~0x80); + while ((len > 0) && ((data & 0x80) != 0)) { + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + len--; + + sub_id = (sub_id << 7) + (data & ~0x80); + } + + if ((data & 0x80) != 0) { + /* "more bytes following" bit still set at end of len */ + return ERR_VAL; + } + *oid_ptr = sub_id; + } + oid_ptr++; + (*oid_len)++; + } + + if (len > 0) { + /* OID to long to fit in our buffer */ + return ERR_MEM; + } + + return ERR_OK; +} + +/** + * Decodes (copies) raw data (ip-addresses, octet strings, opaque encoding) + * from incoming message into array. + * + * @param pbuf_stream points to a pbuf stream + * @param len length of the coded raw data (zero is valid, e.g. empty string!) + * @param buf return raw bytes + * @param buf_len returns length of the raw return value + * @param buf_max_len buffer size + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) decode + */ +err_t +snmp_asn1_dec_raw(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u8_t *buf, u16_t *buf_len, u16_t buf_max_len) +{ + if (len > buf_max_len) { + /* not enough dst space */ + return ERR_MEM; + } + *buf_len = len; + + while (len > 0) { + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, buf)); + buf++; + len--; + } + + return ERR_OK; +} + +#if LWIP_HAVE_INT64 +/** + * Returns octet count for an u64_t. + * + * @param value value to be encoded + * @param octets_needed points to the return value + * + * @note ASN coded integers are _always_ signed. E.g. +0xFFFF is coded + * as 0x00,0xFF,0xFF. Note the leading sign octet. A positive value + * of 0xFFFFFFFFFFFFFFFF is preceded with 0x00 and the length is 9 octets!! + */ +void +snmp_asn1_enc_u64t_cnt(u64_t value, u16_t *octets_needed) +{ + /* check if high u32 is 0 */ + if ((value >> 32) == 0) { + /* only low u32 is important */ + snmp_asn1_enc_u32t_cnt((u32_t)value, octets_needed); + } else { + /* low u32 does not matter for length determination */ + snmp_asn1_enc_u32t_cnt((u32_t)(value >> 32), octets_needed); + *octets_needed = *octets_needed + 4; /* add the 4 bytes of low u32 */ + } +} + +/** + * Decodes large positive integer (counter64) into 2x u32_t. + * + * @param pbuf_stream points to a pbuf stream + * @param len length of the coded integer field + * @param value return 64 bit integer + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) decode + * + * @note ASN coded integers are _always_ signed. E.g. +0xFFFF is coded + * as 0x00,0xFF,0xFF. Note the leading sign octet. A positive value + * of 0xFFFFFFFFFFFFFFFF is preceded with 0x00 and the length is 9 octets!! + */ +err_t +snmp_asn1_dec_u64t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u64_t *value) +{ + u8_t data; + + if ((len > 0) && (len <= 9)) { + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + + /* expecting sign bit to be zero, only unsigned please! */ + if (((len == 9) && (data == 0x00)) || ((len < 9) && ((data & 0x80) == 0))) { + *value = data; + len--; + + while (len > 0) { + PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data)); + *value <<= 8; + *value |= data; + len--; + } + + return ERR_OK; + } + } + + return ERR_VAL; +} + +/** + * Encodes u64_t (counter64) into a pbuf chained ASN1 msg. + * + * @param pbuf_stream points to a pbuf stream + * @param octets_needed encoding length (from snmp_asn1_enc_u32t_cnt()) + * @param value is the value to be encoded + * @return ERR_OK if successful, ERR_ARG if we can't (or won't) encode + * + * @see snmp_asn1_enc_u64t_cnt() + */ +err_t +snmp_asn1_enc_u64t(struct snmp_pbuf_stream *pbuf_stream, u16_t octets_needed, u64_t value) +{ + if (octets_needed > 9) { + return ERR_ARG; + } + if (octets_needed == 9) { + /* not enough bits in 'value' add leading 0x00 */ + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, 0x00)); + octets_needed--; + } + + while (octets_needed > 1) { + octets_needed--; + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, (u8_t)(value >> (octets_needed << 3)))); + } + + /* always write at least one octet (also in case of value == 0) */ + PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, (u8_t)(value))); + + return ERR_OK; +} +#endif + +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_asn1.h b/middleware/lwip/src/apps/snmp/snmp_asn1.h new file mode 100644 index 0000000..87c0973 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_asn1.h @@ -0,0 +1,113 @@ +/** + * @file + * Abstract Syntax Notation One (ISO 8824, 8825) codec. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * Copyright (c) 2016 Elias Oenal. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Christiaan Simons + * Martin Hentschel + * Elias Oenal + */ + +#ifndef LWIP_HDR_APPS_SNMP_ASN1_H +#define LWIP_HDR_APPS_SNMP_ASN1_H + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP + +#include "lwip/err.h" +#include "lwip/apps/snmp_core.h" +#include "snmp_pbuf_stream.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define SNMP_ASN1_TLV_INDEFINITE_LENGTH 0x80 + +#define SNMP_ASN1_CLASS_MASK 0xC0 +#define SNMP_ASN1_CONTENTTYPE_MASK 0x20 +#define SNMP_ASN1_DATATYPE_MASK 0x1F +#define SNMP_ASN1_DATATYPE_EXTENDED 0x1F /* DataType indicating that datatype is encoded in following bytes */ + +/* context specific (SNMP) tags (from SNMP spec. RFC1157 and RFC1905) */ +#define SNMP_ASN1_CONTEXT_PDU_GET_REQ 0 +#define SNMP_ASN1_CONTEXT_PDU_GET_NEXT_REQ 1 +#define SNMP_ASN1_CONTEXT_PDU_GET_RESP 2 +#define SNMP_ASN1_CONTEXT_PDU_SET_REQ 3 +#define SNMP_ASN1_CONTEXT_PDU_TRAP 4 +#define SNMP_ASN1_CONTEXT_PDU_GET_BULK_REQ 5 +#define SNMP_ASN1_CONTEXT_PDU_INFORM_REQ 6 +#define SNMP_ASN1_CONTEXT_PDU_V2_TRAP 7 +#define SNMP_ASN1_CONTEXT_PDU_REPORT 8 + +#define SNMP_ASN1_CONTEXT_VARBIND_NO_SUCH_OBJECT 0 +#define SNMP_ASN1_CONTEXT_VARBIND_END_OF_MIB_VIEW 2 + +struct snmp_asn1_tlv { + u8_t type; /* only U8 because extended types are not specified by SNMP */ + u8_t type_len; /* encoded length of 'type' field (normally 1) */ + u8_t length_len; /* indicates how many bytes are required to encode the 'value_len' field */ + u16_t value_len; /* encoded length of the value */ +}; +#define SNMP_ASN1_TLV_HDR_LENGTH(tlv) ((tlv).type_len + (tlv).length_len) +#define SNMP_ASN1_TLV_LENGTH(tlv) ((tlv).type_len + (tlv).length_len + (tlv).value_len) +#define SNMP_ASN1_SET_TLV_PARAMS(tlv, type_, length_len_, value_len_) do { (tlv).type = (type_); (tlv).type_len = 0; (tlv).length_len = (length_len_); (tlv).value_len = (value_len_); } while (0); + +err_t snmp_asn1_dec_tlv(struct snmp_pbuf_stream *pbuf_stream, struct snmp_asn1_tlv *tlv); +err_t snmp_asn1_dec_u32t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u32_t *value); +err_t snmp_asn1_dec_s32t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, s32_t *value); +err_t snmp_asn1_dec_oid(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u32_t *oid, u8_t *oid_len, u8_t oid_max_len); +err_t snmp_asn1_dec_raw(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u8_t *buf, u16_t *buf_len, u16_t buf_max_len); + +err_t snmp_ans1_enc_tlv(struct snmp_pbuf_stream *pbuf_stream, struct snmp_asn1_tlv *tlv); + +void snmp_asn1_enc_length_cnt(u16_t length, u8_t *octets_needed); +void snmp_asn1_enc_u32t_cnt(u32_t value, u16_t *octets_needed); +void snmp_asn1_enc_s32t_cnt(s32_t value, u16_t *octets_needed); +void snmp_asn1_enc_oid_cnt(const u32_t *oid, u16_t oid_len, u16_t *octets_needed); +err_t snmp_asn1_enc_oid(struct snmp_pbuf_stream *pbuf_stream, const u32_t *oid, u16_t oid_len); +err_t snmp_asn1_enc_s32t(struct snmp_pbuf_stream *pbuf_stream, u16_t octets_needed, s32_t value); +err_t snmp_asn1_enc_u32t(struct snmp_pbuf_stream *pbuf_stream, u16_t octets_needed, u32_t value); +err_t snmp_asn1_enc_raw(struct snmp_pbuf_stream *pbuf_stream, const u8_t *raw, u16_t raw_len); + +#if LWIP_HAVE_INT64 +err_t snmp_asn1_dec_u64t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u64_t *value); +void snmp_asn1_enc_u64t_cnt(u64_t value, u16_t *octets_needed); +err_t snmp_asn1_enc_u64t(struct snmp_pbuf_stream *pbuf_stream, u16_t octets_needed, u64_t value); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_SNMP */ + +#endif /* LWIP_HDR_APPS_SNMP_ASN1_H */ diff --git a/middleware/lwip/src/apps/snmp/snmp_core.c b/middleware/lwip/src/apps/snmp/snmp_core.c new file mode 100644 index 0000000..a16807b --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_core.c @@ -0,0 +1,1356 @@ +/** + * @file + * MIB tree access/construction functions. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Christiaan Simons + * Martin Hentschel +*/ + +/** + * @defgroup snmp SNMPv2c/v3 agent + * @ingroup apps + * SNMPv2c and SNMPv3 compatible agent
+ * There is also a MIB compiler and a MIB viewer in lwIP/contrib subdir + * (lwip/contrib/apps/LwipMibCompiler).
+ * The agent implements the most important MIB2 MIBs including IPv6 support + * (interfaces, UDP, TCP, SNMP, ICMP, SYSTEM). IP MIB is an older version + * without IPv6 statistics (TODO).
+ * Rewritten by Martin Hentschel and + * Dirk Ziegelmeier + * + * 0 Agent Capabilities + * ==================== + * + * Features: + * --------- + * - SNMPv2c support. + * - SNMPv3 support (a port to ARM mbedtls is provided, LWIP_SNMP_V3_MBEDTLS option). + * - Low RAM usage - no memory pools, stack only. + * - MIB2 implementation is separated from SNMP stack. + * - Support for multiple MIBs (snmp_set_mibs() call) - e.g. for private MIB. + * - Simple and generic API for MIB implementation. + * - Comfortable node types and helper functions for scalar arrays and tables. + * - Counter64, bit and truthvalue datatype support. + * - Callbacks for SNMP writes e.g. to implement persistency. + * - Runs on two APIs: RAW and netconn. + * - Async API is gone - the stack now supports netconn API instead, + * so blocking operations can be done in MIB calls. + * SNMP runs in a worker thread when netconn API is used. + * - Simplified thread sync support for MIBs - useful when MIBs + * need to access variables shared with other threads where no locking is + * possible. Used in MIB2 to access lwIP stats from lwIP thread. + * + * MIB compiler (code generator): + * ------------------------------ + * - Provided in contrib dir. + * - Written in C#. MIB viewer using Windows Forms. + * - Developed on Windows with Visual Studio 2010. + * - Can be compiled and used on all platforms with http://www.monodevelop.com/. + * - Based on a heavily modified version of of SharpSnmpLib (a4bd05c6afb4) + * (https://sharpsnmplib.codeplex.com/SourceControl/network/forks/Nemo157/MIBParserUpdate). + * This has been the last known revision of that code before being converted to + * closed source. The new code on github has completely changed, so we can not + * just update :-( + * - MIB parser, C file generation framework and LWIP code generation are cleanly + * separated, which means the code may be useful as a base for code generation + * of other SNMP agents. + * + * Notes: + * ------ + * - Stack and MIB compiler were used to implement a Profinet device. + * Compiled/implemented MIBs: LLDP-MIB, LLDP-EXT-DOT3-MIB, LLDP-EXT-PNO-MIB. + * + * SNMPv1 per RFC1157 and SNMPv2c per RFC 3416 + * ------------------------------------------- + * Note the S in SNMP stands for "Simple". Note that "Simple" is + * relative. SNMP is simple compared to the complex ISO network + * management protocols CMIP (Common Management Information Protocol) + * and CMOT (CMip Over Tcp). + * + * SNMPv3 + * ------ + * When SNMPv3 is used, several functions from snmpv3.h must be implemented + * by the user. This is mainly user management and persistence handling. + * The sample provided in lwip-contrib is insecure, don't use it in production + * systems, especially the missing persistence for engine boots variable + * simplifies replay attacks. + * + * MIB II + * ------ + * The standard lwIP stack management information base. + * This is a required MIB, so this is always enabled. + * The groups EGP, CMOT and transmission are disabled by default. + * + * Most mib-2 objects are not writable except: + * sysName, sysLocation, sysContact, snmpEnableAuthenTraps. + * Writing to or changing the ARP and IP address and route + * tables is not possible. + * + * Note lwIP has a very limited notion of IP routing. It currently + * doesn't have a route table and doesn't have a notion of the U,G,H flags. + * Instead lwIP uses the interface list with only one default interface + * acting as a single gateway interface (G) for the default route. + * + * The agent returns a "virtual table" with the default route 0.0.0.0 + * for the default interface and network routes (no H) for each + * network interface in the netif_list. + * All routes are considered to be up (U). + * + * Loading additional MIBs + * ----------------------- + * MIBs can only be added in compile-time, not in run-time. + * + * + * 1 Building the Agent + * ==================== + * First of all you'll need to add the following define + * to your local lwipopts.h: + * \#define LWIP_SNMP 1 + * + * and add the source files your makefile. + * + * Note you'll might need to adapt you network driver to update + * the mib2 variables for your interface. + * + * 2 Running the Agent + * =================== + * The following function calls must be made in your program to + * actually get the SNMP agent running. + * + * Before starting the agent you should supply pointers + * for sysContact, sysLocation, and snmpEnableAuthenTraps. + * You can do this by calling + * + * - snmp_mib2_set_syscontact() + * - snmp_mib2_set_syslocation() + * - snmp_set_auth_traps_enabled() + * + * You can register a callback which is called on successful write access: + * snmp_set_write_callback(). + * + * Additionally you may want to set + * + * - snmp_mib2_set_sysdescr() + * - snmp_set_device_enterprise_oid() + * - snmp_mib2_set_sysname() + * + * Also before starting the agent you need to setup + * one or more trap destinations using these calls: + * + * - snmp_trap_dst_enable() + * - snmp_trap_dst_ip_set() + * + * If you need more than MIB2, set the MIBs you want to use + * by snmp_set_mibs(). + * + * Finally, enable the agent by calling snmp_init() + * + * @defgroup snmp_core Core + * @ingroup snmp + * + * @defgroup snmp_traps Traps + * @ingroup snmp + */ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "snmp_core_priv.h" +#include "lwip/netif.h" +#include + + +#if (LWIP_SNMP && (SNMP_TRAP_DESTINATIONS<=0)) +#error "If you want to use SNMP, you have to define SNMP_TRAP_DESTINATIONS>=1 in your lwipopts.h" +#endif +#if (!LWIP_UDP && LWIP_SNMP) +#error "If you want to use SNMP, you have to define LWIP_UDP=1 in your lwipopts.h" +#endif +#if SNMP_MAX_OBJ_ID_LEN > 255 +#error "SNMP_MAX_OBJ_ID_LEN must fit into an u8_t" +#endif + +struct snmp_statistics snmp_stats; +static const struct snmp_obj_id snmp_device_enterprise_oid_default = {SNMP_DEVICE_ENTERPRISE_OID_LEN, SNMP_DEVICE_ENTERPRISE_OID}; +static const struct snmp_obj_id *snmp_device_enterprise_oid = &snmp_device_enterprise_oid_default; + +const u32_t snmp_zero_dot_zero_values[] = { 0, 0 }; +const struct snmp_obj_id_const_ref snmp_zero_dot_zero = { LWIP_ARRAYSIZE(snmp_zero_dot_zero_values), snmp_zero_dot_zero_values }; + +#if SNMP_LWIP_MIB2 && LWIP_SNMP_V3 +#include "lwip/apps/snmp_mib2.h" +#include "lwip/apps/snmp_snmpv2_framework.h" +#include "lwip/apps/snmp_snmpv2_usm.h" +static const struct snmp_mib *const default_mibs[] = { &mib2, &snmpframeworkmib, &snmpusmmib }; +static u8_t snmp_num_mibs = LWIP_ARRAYSIZE(default_mibs); +#elif SNMP_LWIP_MIB2 +#include "lwip/apps/snmp_mib2.h" +static const struct snmp_mib *const default_mibs[] = { &mib2 }; +static u8_t snmp_num_mibs = LWIP_ARRAYSIZE(default_mibs); +#else +static const struct snmp_mib *const default_mibs[] = { NULL }; +static u8_t snmp_num_mibs = 0; +#endif + +/* List of known mibs */ +static struct snmp_mib const *const *snmp_mibs = default_mibs; + +/** + * @ingroup snmp_core + * Sets the MIBs to use. + * Example: call snmp_set_mibs() as follows: + * static const struct snmp_mib *my_snmp_mibs[] = { + * &mib2, + * &private_mib + * }; + * snmp_set_mibs(my_snmp_mibs, LWIP_ARRAYSIZE(my_snmp_mibs)); + */ +void +snmp_set_mibs(const struct snmp_mib **mibs, u8_t num_mibs) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("mibs pointer must be != NULL", (mibs != NULL)); + LWIP_ASSERT("num_mibs pointer must be != 0", (num_mibs != 0)); + snmp_mibs = mibs; + snmp_num_mibs = num_mibs; +} + +/** + * @ingroup snmp_core + * 'device enterprise oid' is used for 'device OID' field in trap PDU's (for identification of generating device) + * as well as for value returned by MIB-2 'sysObjectID' field (if internal MIB2 implementation is used). + * The 'device enterprise oid' shall point to an OID located under 'private-enterprises' branch (1.3.6.1.4.1.XXX). If a vendor + * wants to provide a custom object there, he has to get its own enterprise oid from IANA (http://www.iana.org). It + * is not allowed to use LWIP enterprise ID! + * In order to identify a specific device it is recommended to create a dedicated OID for each device type under its own + * enterprise oid. + * e.g. + * device a > 1.3.6.1.4.1.XXX(ent-oid).1(devices).1(device a) + * device b > 1.3.6.1.4.1.XXX(ent-oid).1(devices).2(device b) + * for more details see description of 'sysObjectID' field in RFC1213-MIB + */ +void snmp_set_device_enterprise_oid(const struct snmp_obj_id *device_enterprise_oid) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (device_enterprise_oid == NULL) { + snmp_device_enterprise_oid = &snmp_device_enterprise_oid_default; + } else { + snmp_device_enterprise_oid = device_enterprise_oid; + } +} + +/** + * @ingroup snmp_core + * Get 'device enterprise oid' + */ +const struct snmp_obj_id *snmp_get_device_enterprise_oid(void) +{ + LWIP_ASSERT_CORE_LOCKED(); + return snmp_device_enterprise_oid; +} + +#if LWIP_IPV4 +/** + * Conversion from InetAddressIPv4 oid to lwIP ip4_addr + * @param oid points to u32_t ident[4] input + * @param ip points to output struct + */ +u8_t +snmp_oid_to_ip4(const u32_t *oid, ip4_addr_t *ip) +{ + if ((oid[0] > 0xFF) || + (oid[1] > 0xFF) || + (oid[2] > 0xFF) || + (oid[3] > 0xFF)) { + ip4_addr_copy(*ip, *IP4_ADDR_ANY4); + return 0; + } + + IP4_ADDR(ip, oid[0], oid[1], oid[2], oid[3]); + return 1; +} + +/** + * Convert ip4_addr to InetAddressIPv4 (no InetAddressType) + * @param ip points to input struct + * @param oid points to u32_t ident[4] output + */ +void +snmp_ip4_to_oid(const ip4_addr_t *ip, u32_t *oid) +{ + oid[0] = ip4_addr1(ip); + oid[1] = ip4_addr2(ip); + oid[2] = ip4_addr3(ip); + oid[3] = ip4_addr4(ip); +} +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 +/** + * Conversion from InetAddressIPv6 oid to lwIP ip6_addr + * @param oid points to u32_t oid[16] input + * @param ip points to output struct + */ +u8_t +snmp_oid_to_ip6(const u32_t *oid, ip6_addr_t *ip) +{ + if ((oid[0] > 0xFF) || + (oid[1] > 0xFF) || + (oid[2] > 0xFF) || + (oid[3] > 0xFF) || + (oid[4] > 0xFF) || + (oid[5] > 0xFF) || + (oid[6] > 0xFF) || + (oid[7] > 0xFF) || + (oid[8] > 0xFF) || + (oid[9] > 0xFF) || + (oid[10] > 0xFF) || + (oid[11] > 0xFF) || + (oid[12] > 0xFF) || + (oid[13] > 0xFF) || + (oid[14] > 0xFF) || + (oid[15] > 0xFF)) { + ip6_addr_set_any(ip); + return 0; + } + + ip->addr[0] = (oid[0] << 24) | (oid[1] << 16) | (oid[2] << 8) | (oid[3] << 0); + ip->addr[1] = (oid[4] << 24) | (oid[5] << 16) | (oid[6] << 8) | (oid[7] << 0); + ip->addr[2] = (oid[8] << 24) | (oid[9] << 16) | (oid[10] << 8) | (oid[11] << 0); + ip->addr[3] = (oid[12] << 24) | (oid[13] << 16) | (oid[14] << 8) | (oid[15] << 0); + return 1; +} + +/** + * Convert ip6_addr to InetAddressIPv6 (no InetAddressType) + * @param ip points to input struct + * @param oid points to u32_t ident[16] output + */ +void +snmp_ip6_to_oid(const ip6_addr_t *ip, u32_t *oid) +{ + oid[0] = (ip->addr[0] & 0xFF000000) >> 24; + oid[1] = (ip->addr[0] & 0x00FF0000) >> 16; + oid[2] = (ip->addr[0] & 0x0000FF00) >> 8; + oid[3] = (ip->addr[0] & 0x000000FF) >> 0; + oid[4] = (ip->addr[1] & 0xFF000000) >> 24; + oid[5] = (ip->addr[1] & 0x00FF0000) >> 16; + oid[6] = (ip->addr[1] & 0x0000FF00) >> 8; + oid[7] = (ip->addr[1] & 0x000000FF) >> 0; + oid[8] = (ip->addr[2] & 0xFF000000) >> 24; + oid[9] = (ip->addr[2] & 0x00FF0000) >> 16; + oid[10] = (ip->addr[2] & 0x0000FF00) >> 8; + oid[11] = (ip->addr[2] & 0x000000FF) >> 0; + oid[12] = (ip->addr[3] & 0xFF000000) >> 24; + oid[13] = (ip->addr[3] & 0x00FF0000) >> 16; + oid[14] = (ip->addr[3] & 0x0000FF00) >> 8; + oid[15] = (ip->addr[3] & 0x000000FF) >> 0; +} +#endif /* LWIP_IPV6 */ + +#if LWIP_IPV4 || LWIP_IPV6 +/** + * Convert to InetAddressType+InetAddress+InetPortNumber + * @param ip IP address + * @param port Port + * @param oid OID + * @return OID length + */ +u8_t +snmp_ip_port_to_oid(const ip_addr_t *ip, u16_t port, u32_t *oid) +{ + u8_t idx; + + idx = snmp_ip_to_oid(ip, oid); + oid[idx] = port; + idx++; + + return idx; +} + +/** + * Convert to InetAddressType+InetAddress + * @param ip IP address + * @param oid OID + * @return OID length + */ +u8_t +snmp_ip_to_oid(const ip_addr_t *ip, u32_t *oid) +{ + if (IP_IS_ANY_TYPE_VAL(*ip)) { + oid[0] = 0; /* any */ + oid[1] = 0; /* no IP OIDs follow */ + return 2; + } else if (IP_IS_V6(ip)) { +#if LWIP_IPV6 + oid[0] = 2; /* ipv6 */ + oid[1] = 16; /* 16 InetAddressIPv6 OIDs follow */ + snmp_ip6_to_oid(ip_2_ip6(ip), &oid[2]); + return 18; +#else /* LWIP_IPV6 */ + return 0; +#endif /* LWIP_IPV6 */ + } else { +#if LWIP_IPV4 + oid[0] = 1; /* ipv4 */ + oid[1] = 4; /* 4 InetAddressIPv4 OIDs follow */ + snmp_ip4_to_oid(ip_2_ip4(ip), &oid[2]); + return 6; +#else /* LWIP_IPV4 */ + return 0; +#endif /* LWIP_IPV4 */ + } +} + +/** + * Convert from InetAddressType+InetAddress to ip_addr_t + * @param oid OID + * @param oid_len OID length + * @param ip IP address + * @return Parsed OID length + */ +u8_t +snmp_oid_to_ip(const u32_t *oid, u8_t oid_len, ip_addr_t *ip) +{ + /* InetAddressType */ + if (oid_len < 1) { + return 0; + } + + if (oid[0] == 0) { /* any */ + /* 1x InetAddressType, 1x OID len */ + if (oid_len < 2) { + return 0; + } + if (oid[1] != 0) { + return 0; + } + + memset(ip, 0, sizeof(*ip)); + IP_SET_TYPE(ip, IPADDR_TYPE_ANY); + + return 2; + } else if (oid[0] == 1) { /* ipv4 */ +#if LWIP_IPV4 + /* 1x InetAddressType, 1x OID len, 4x InetAddressIPv4 */ + if (oid_len < 6) { + return 0; + } + + /* 4x ipv4 OID */ + if (oid[1] != 4) { + return 0; + } + + IP_SET_TYPE(ip, IPADDR_TYPE_V4); + if (!snmp_oid_to_ip4(&oid[2], ip_2_ip4(ip))) { + return 0; + } + + return 6; +#else /* LWIP_IPV4 */ + return 0; +#endif /* LWIP_IPV4 */ + } else if (oid[0] == 2) { /* ipv6 */ +#if LWIP_IPV6 + /* 1x InetAddressType, 1x OID len, 16x InetAddressIPv6 */ + if (oid_len < 18) { + return 0; + } + + /* 16x ipv6 OID */ + if (oid[1] != 16) { + return 0; + } + + IP_SET_TYPE(ip, IPADDR_TYPE_V6); + if (!snmp_oid_to_ip6(&oid[2], ip_2_ip6(ip))) { + return 0; + } + + return 18; +#else /* LWIP_IPV6 */ + return 0; +#endif /* LWIP_IPV6 */ + } else { /* unsupported InetAddressType */ + return 0; + } +} + +/** + * Convert from InetAddressType+InetAddress+InetPortNumber to ip_addr_t and u16_t + * @param oid OID + * @param oid_len OID length + * @param ip IP address + * @param port Port + * @return Parsed OID length + */ +u8_t +snmp_oid_to_ip_port(const u32_t *oid, u8_t oid_len, ip_addr_t *ip, u16_t *port) +{ + u8_t idx; + + /* InetAddressType + InetAddress */ + idx = snmp_oid_to_ip(&oid[0], oid_len, ip); + if (idx == 0) { + return 0; + } + + /* InetPortNumber */ + if (oid_len < (idx + 1)) { + return 0; + } + if (oid[idx] > 0xffff) { + return 0; + } + *port = (u16_t)oid[idx]; + idx++; + + return idx; +} + +#endif /* LWIP_IPV4 || LWIP_IPV6 */ + +/** + * Assign an OID to struct snmp_obj_id + * @param target Assignment target + * @param oid OID + * @param oid_len OID length + */ +void +snmp_oid_assign(struct snmp_obj_id *target, const u32_t *oid, u8_t oid_len) +{ + LWIP_ASSERT("oid_len <= SNMP_MAX_OBJ_ID_LEN", oid_len <= SNMP_MAX_OBJ_ID_LEN); + + target->len = oid_len; + + if (oid_len > 0) { + MEMCPY(target->id, oid, oid_len * sizeof(u32_t)); + } +} + +/** + * Prefix an OID to OID in struct snmp_obj_id + * @param target Assignment target to prefix + * @param oid OID + * @param oid_len OID length + */ +void +snmp_oid_prefix(struct snmp_obj_id *target, const u32_t *oid, u8_t oid_len) +{ + LWIP_ASSERT("target->len + oid_len <= SNMP_MAX_OBJ_ID_LEN", (target->len + oid_len) <= SNMP_MAX_OBJ_ID_LEN); + + if (oid_len > 0) { + /* move existing OID to make room at the beginning for OID to insert */ + int i; + for (i = target->len - 1; i >= 0; i--) { + target->id[i + oid_len] = target->id[i]; + } + + /* paste oid at the beginning */ + MEMCPY(target->id, oid, oid_len * sizeof(u32_t)); + } +} + +/** + * Combine two OIDs into struct snmp_obj_id + * @param target Assignmet target + * @param oid1 OID 1 + * @param oid1_len OID 1 length + * @param oid2 OID 2 + * @param oid2_len OID 2 length + */ +void +snmp_oid_combine(struct snmp_obj_id *target, const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len) +{ + snmp_oid_assign(target, oid1, oid1_len); + snmp_oid_append(target, oid2, oid2_len); +} + +/** + * Append OIDs to struct snmp_obj_id + * @param target Assignment target to append to + * @param oid OID + * @param oid_len OID length + */ +void +snmp_oid_append(struct snmp_obj_id *target, const u32_t *oid, u8_t oid_len) +{ + LWIP_ASSERT("offset + oid_len <= SNMP_MAX_OBJ_ID_LEN", (target->len + oid_len) <= SNMP_MAX_OBJ_ID_LEN); + + if (oid_len > 0) { + MEMCPY(&target->id[target->len], oid, oid_len * sizeof(u32_t)); + target->len = (u8_t)(target->len + oid_len); + } +} + +/** + * Compare two OIDs + * @param oid1 OID 1 + * @param oid1_len OID 1 length + * @param oid2 OID 2 + * @param oid2_len OID 2 length + * @return -1: OID1<OID2 1: OID1 >OID2 0: equal + */ +s8_t +snmp_oid_compare(const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len) +{ + u8_t level = 0; + LWIP_ASSERT("'oid1' param must not be NULL or 'oid1_len' param be 0!", (oid1 != NULL) || (oid1_len == 0)); + LWIP_ASSERT("'oid2' param must not be NULL or 'oid2_len' param be 0!", (oid2 != NULL) || (oid2_len == 0)); + + while ((level < oid1_len) && (level < oid2_len)) { + if (*oid1 < *oid2) { + return -1; + } + if (*oid1 > *oid2) { + return 1; + } + + level++; + oid1++; + oid2++; + } + + /* common part of both OID's is equal, compare length */ + if (oid1_len < oid2_len) { + return -1; + } + if (oid1_len > oid2_len) { + return 1; + } + + /* they are equal */ + return 0; +} + + +/** + * Check of two OIDs are equal + * @param oid1 OID 1 + * @param oid1_len OID 1 length + * @param oid2 OID 2 + * @param oid2_len OID 2 length + * @return 1: equal 0: non-equal + */ +u8_t +snmp_oid_equal(const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len) +{ + return (snmp_oid_compare(oid1, oid1_len, oid2, oid2_len) == 0) ? 1 : 0; +} + +/** + * Convert netif to interface index + * @param netif netif + * @return index + */ +u8_t +netif_to_num(const struct netif *netif) +{ + return netif_get_index(netif); +} + +static const struct snmp_mib * +snmp_get_mib_from_oid(const u32_t *oid, u8_t oid_len) +{ + const u32_t *list_oid; + const u32_t *searched_oid; + u8_t i, l; + + u8_t max_match_len = 0; + const struct snmp_mib *matched_mib = NULL; + + LWIP_ASSERT("'oid' param must not be NULL!", (oid != NULL)); + + if (oid_len == 0) { + return NULL; + } + + for (i = 0; i < snmp_num_mibs; i++) { + LWIP_ASSERT("MIB array not initialized correctly", (snmp_mibs[i] != NULL)); + LWIP_ASSERT("MIB array not initialized correctly - base OID is NULL", (snmp_mibs[i]->base_oid != NULL)); + + if (oid_len >= snmp_mibs[i]->base_oid_len) { + l = snmp_mibs[i]->base_oid_len; + list_oid = snmp_mibs[i]->base_oid; + searched_oid = oid; + + while (l > 0) { + if (*list_oid != *searched_oid) { + break; + } + + l--; + list_oid++; + searched_oid++; + } + + if ((l == 0) && (snmp_mibs[i]->base_oid_len > max_match_len)) { + max_match_len = snmp_mibs[i]->base_oid_len; + matched_mib = snmp_mibs[i]; + } + } + } + + return matched_mib; +} + +static const struct snmp_mib * +snmp_get_next_mib(const u32_t *oid, u8_t oid_len) +{ + u8_t i; + const struct snmp_mib *next_mib = NULL; + + LWIP_ASSERT("'oid' param must not be NULL!", (oid != NULL)); + + if (oid_len == 0) { + return NULL; + } + + for (i = 0; i < snmp_num_mibs; i++) { + if (snmp_mibs[i]->base_oid != NULL) { + /* check if mib is located behind starting point */ + if (snmp_oid_compare(snmp_mibs[i]->base_oid, snmp_mibs[i]->base_oid_len, oid, oid_len) > 0) { + if ((next_mib == NULL) || + (snmp_oid_compare(snmp_mibs[i]->base_oid, snmp_mibs[i]->base_oid_len, + next_mib->base_oid, next_mib->base_oid_len) < 0)) { + next_mib = snmp_mibs[i]; + } + } + } + } + + return next_mib; +} + +static const struct snmp_mib * +snmp_get_mib_between(const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len) +{ + const struct snmp_mib *next_mib = snmp_get_next_mib(oid1, oid1_len); + + LWIP_ASSERT("'oid2' param must not be NULL!", (oid2 != NULL)); + LWIP_ASSERT("'oid2_len' param must be greater than 0!", (oid2_len > 0)); + + if (next_mib != NULL) { + if (snmp_oid_compare(next_mib->base_oid, next_mib->base_oid_len, oid2, oid2_len) < 0) { + return next_mib; + } + } + + return NULL; +} + +u8_t +snmp_get_node_instance_from_oid(const u32_t *oid, u8_t oid_len, struct snmp_node_instance *node_instance) +{ + u8_t result = SNMP_ERR_NOSUCHOBJECT; + const struct snmp_mib *mib; + const struct snmp_node *mn = NULL; + + mib = snmp_get_mib_from_oid(oid, oid_len); + if (mib != NULL) { + u8_t oid_instance_len; + + mn = snmp_mib_tree_resolve_exact(mib, oid, oid_len, &oid_instance_len); + if ((mn != NULL) && (mn->node_type != SNMP_NODE_TREE)) { + /* get instance */ + const struct snmp_leaf_node *leaf_node = (const struct snmp_leaf_node *)(const void *)mn; + + node_instance->node = mn; + snmp_oid_assign(&node_instance->instance_oid, oid + (oid_len - oid_instance_len), oid_instance_len); + + result = leaf_node->get_instance( + oid, + oid_len - oid_instance_len, + node_instance); + +#ifdef LWIP_DEBUG + if (result == SNMP_ERR_NOERROR) { + if (((node_instance->access & SNMP_NODE_INSTANCE_ACCESS_READ) != 0) && (node_instance->get_value == NULL)) { + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP inconsistent access: node is readable but no get_value function is specified\n")); + } + if (((node_instance->access & SNMP_NODE_INSTANCE_ACCESS_WRITE) != 0) && (node_instance->set_value == NULL)) { + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP inconsistent access: node is writable but no set_value and/or set_test function is specified\n")); + } + } +#endif + } + } + + return result; +} + +u8_t +snmp_get_next_node_instance_from_oid(const u32_t *oid, u8_t oid_len, snmp_validate_node_instance_method validate_node_instance_method, void *validate_node_instance_arg, struct snmp_obj_id *node_oid, struct snmp_node_instance *node_instance) +{ + const struct snmp_mib *mib; + const struct snmp_node *mn = NULL; + const u32_t *start_oid = NULL; + u8_t start_oid_len = 0; + + /* resolve target MIB from passed OID */ + mib = snmp_get_mib_from_oid(oid, oid_len); + if (mib == NULL) { + /* passed OID does not reference any known MIB, start at the next closest MIB */ + mib = snmp_get_next_mib(oid, oid_len); + + if (mib != NULL) { + start_oid = mib->base_oid; + start_oid_len = mib->base_oid_len; + } + } else { + start_oid = oid; + start_oid_len = oid_len; + } + + /* resolve target node from MIB, skip to next MIB if no suitable node is found in current MIB */ + while ((mib != NULL) && (mn == NULL)) { + u8_t oid_instance_len; + + /* check if OID directly references a node inside current MIB, in this case we have to ask this node for the next instance */ + mn = snmp_mib_tree_resolve_exact(mib, start_oid, start_oid_len, &oid_instance_len); + if (mn != NULL) { + snmp_oid_assign(node_oid, start_oid, start_oid_len - oid_instance_len); /* set oid to node */ + snmp_oid_assign(&node_instance->instance_oid, start_oid + (start_oid_len - oid_instance_len), oid_instance_len); /* set (relative) instance oid */ + } else { + /* OID does not reference a node, search for the next closest node inside MIB; set instance_oid.len to zero because we want the first instance of this node */ + mn = snmp_mib_tree_resolve_next(mib, start_oid, start_oid_len, node_oid); + node_instance->instance_oid.len = 0; + } + + /* validate the node; if the node has no further instance or the returned instance is invalid, search for the next in MIB and validate again */ + node_instance->node = mn; + while (mn != NULL) { + u8_t result; + + /* clear fields which may have values from previous loops */ + node_instance->asn1_type = 0; + node_instance->access = SNMP_NODE_INSTANCE_NOT_ACCESSIBLE; + node_instance->get_value = NULL; + node_instance->set_test = NULL; + node_instance->set_value = NULL; + node_instance->release_instance = NULL; + node_instance->reference.ptr = NULL; + node_instance->reference_len = 0; + + result = ((const struct snmp_leaf_node *)(const void *)mn)->get_next_instance( + node_oid->id, + node_oid->len, + node_instance); + + if (result == SNMP_ERR_NOERROR) { +#ifdef LWIP_DEBUG + if (((node_instance->access & SNMP_NODE_INSTANCE_ACCESS_READ) != 0) && (node_instance->get_value == NULL)) { + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP inconsistent access: node is readable but no get_value function is specified\n")); + } + if (((node_instance->access & SNMP_NODE_INSTANCE_ACCESS_WRITE) != 0) && (node_instance->set_value == NULL)) { + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP inconsistent access: node is writable but no set_value function is specified\n")); + } +#endif + + /* validate node because the node may be not accessible for example (but let the caller decide what is valid */ + if ((validate_node_instance_method == NULL) || + (validate_node_instance_method(node_instance, validate_node_instance_arg) == SNMP_ERR_NOERROR)) { + /* node_oid "returns" the full result OID (including the instance part) */ + snmp_oid_append(node_oid, node_instance->instance_oid.id, node_instance->instance_oid.len); + break; + } + + if (node_instance->release_instance != NULL) { + node_instance->release_instance(node_instance); + } + /* + the instance itself is not valid, ask for next instance from same node. + we don't have to change any variables because node_instance->instance_oid is used as input (starting point) + as well as output (resulting next OID), so we have to simply call get_next_instance method again + */ + } else { + if (node_instance->release_instance != NULL) { + node_instance->release_instance(node_instance); + } + + /* the node has no further instance, skip to next node */ + mn = snmp_mib_tree_resolve_next(mib, node_oid->id, node_oid->len, &node_instance->instance_oid); /* misuse node_instance->instance_oid as tmp buffer */ + if (mn != NULL) { + /* prepare for next loop */ + snmp_oid_assign(node_oid, node_instance->instance_oid.id, node_instance->instance_oid.len); + node_instance->instance_oid.len = 0; + node_instance->node = mn; + } + } + } + + if (mn != NULL) { + /* + we found a suitable next node, + now we have to check if a inner MIB is located between the searched OID and the resulting OID. + this is possible because MIB's may be located anywhere in the global tree, that means also in + the subtree of another MIB (e.g. if searched OID is .2 and resulting OID is .4, then another + MIB having .3 as root node may exist) + */ + const struct snmp_mib *intermediate_mib; + intermediate_mib = snmp_get_mib_between(start_oid, start_oid_len, node_oid->id, node_oid->len); + + if (intermediate_mib != NULL) { + /* search for first node inside intermediate mib in next loop */ + if (node_instance->release_instance != NULL) { + node_instance->release_instance(node_instance); + } + + mn = NULL; + mib = intermediate_mib; + start_oid = mib->base_oid; + start_oid_len = mib->base_oid_len; + } + /* else { we found out target node } */ + } else { + /* + there is no further (suitable) node inside this MIB, search for the next MIB with following priority + 1. search for inner MIB's (whose root is located inside tree of current MIB) + 2. search for surrounding MIB's (where the current MIB is the inner MIB) and continue there if any + 3. take the next closest MIB (not being related to the current MIB) + */ + const struct snmp_mib *next_mib; + next_mib = snmp_get_next_mib(start_oid, start_oid_len); /* returns MIB's related to point 1 and 3 */ + + /* is the found MIB an inner MIB? (point 1) */ + if ((next_mib != NULL) && (next_mib->base_oid_len > mib->base_oid_len) && + (snmp_oid_compare(next_mib->base_oid, mib->base_oid_len, mib->base_oid, mib->base_oid_len) == 0)) { + /* yes it is -> continue at inner MIB */ + mib = next_mib; + start_oid = mib->base_oid; + start_oid_len = mib->base_oid_len; + } else { + /* check if there is a surrounding mib where to continue (point 2) (only possible if OID length > 1) */ + if (mib->base_oid_len > 1) { + mib = snmp_get_mib_from_oid(mib->base_oid, mib->base_oid_len - 1); + + if (mib == NULL) { + /* no surrounding mib, use next mib encountered above (point 3) */ + mib = next_mib; + + if (mib != NULL) { + start_oid = mib->base_oid; + start_oid_len = mib->base_oid_len; + } + } + /* else { start_oid stays the same because we want to continue from current offset in surrounding mib (point 2) } */ + } + } + } + } + + if (mib == NULL) { + /* loop is only left when mib == null (error) or mib_node != NULL (success) */ + return SNMP_ERR_ENDOFMIBVIEW; + } + + return SNMP_ERR_NOERROR; +} + +/** + * Searches tree for the supplied object identifier. + * + */ +const struct snmp_node * +snmp_mib_tree_resolve_exact(const struct snmp_mib *mib, const u32_t *oid, u8_t oid_len, u8_t *oid_instance_len) +{ + const struct snmp_node *const *node = &mib->root_node; + u8_t oid_offset = mib->base_oid_len; + + while ((oid_offset < oid_len) && ((*node)->node_type == SNMP_NODE_TREE)) { + /* search for matching sub node */ + u32_t subnode_oid = *(oid + oid_offset); + + u32_t i = (*(const struct snmp_tree_node * const *)node)->subnode_count; + node = (*(const struct snmp_tree_node * const *)node)->subnodes; + while ((i > 0) && ((*node)->oid != subnode_oid)) { + node++; + i--; + } + + if (i == 0) { + /* no matching subnode found */ + return NULL; + } + + oid_offset++; + } + + if ((*node)->node_type != SNMP_NODE_TREE) { + /* we found a leaf node */ + *oid_instance_len = oid_len - oid_offset; + return (*node); + } + + return NULL; +} + +const struct snmp_node * +snmp_mib_tree_resolve_next(const struct snmp_mib *mib, const u32_t *oid, u8_t oid_len, struct snmp_obj_id *oidret) +{ + u8_t oid_offset = mib->base_oid_len; + const struct snmp_node *const *node; + const struct snmp_tree_node *node_stack[SNMP_MAX_OBJ_ID_LEN]; + s32_t nsi = 0; /* NodeStackIndex */ + u32_t subnode_oid; + + if (mib->root_node->node_type != SNMP_NODE_TREE) { + /* a next operation on a mib with only a leaf node will always return NULL because there is no other node */ + return NULL; + } + + /* first build node stack related to passed oid (as far as possible), then go backwards to determine the next node */ + node_stack[nsi] = (const struct snmp_tree_node *)(const void *)mib->root_node; + while (oid_offset < oid_len) { + /* search for matching sub node */ + u32_t i = node_stack[nsi]->subnode_count; + node = node_stack[nsi]->subnodes; + + subnode_oid = *(oid + oid_offset); + + while ((i > 0) && ((*node)->oid != subnode_oid)) { + node++; + i--; + } + + if ((i == 0) || ((*node)->node_type != SNMP_NODE_TREE)) { + /* no (matching) tree-subnode found */ + break; + } + nsi++; + node_stack[nsi] = (const struct snmp_tree_node *)(const void *)(*node); + + oid_offset++; + } + + + if (oid_offset >= oid_len) { + /* passed oid references a tree node -> return first usable sub node of it */ + subnode_oid = 0; + } else { + subnode_oid = *(oid + oid_offset) + 1; + } + + while (nsi >= 0) { + const struct snmp_node *subnode = NULL; + + /* find next node on current level */ + s32_t i = node_stack[nsi]->subnode_count; + node = node_stack[nsi]->subnodes; + while (i > 0) { + if ((*node)->oid == subnode_oid) { + subnode = *node; + break; + } else if (((*node)->oid > subnode_oid) && ((subnode == NULL) || ((*node)->oid < subnode->oid))) { + subnode = *node; + } + + node++; + i--; + } + + if (subnode == NULL) { + /* no further node found on this level, go one level up and start searching with index of current node*/ + subnode_oid = node_stack[nsi]->node.oid + 1; + nsi--; + } else { + if (subnode->node_type == SNMP_NODE_TREE) { + /* next is a tree node, go into it and start searching */ + nsi++; + node_stack[nsi] = (const struct snmp_tree_node *)(const void *)subnode; + subnode_oid = 0; + } else { + /* we found a leaf node -> fill oidret and return it */ + snmp_oid_assign(oidret, mib->base_oid, mib->base_oid_len); + i = 1; + while (i <= nsi) { + oidret->id[oidret->len] = node_stack[i]->node.oid; + oidret->len++; + i++; + } + + oidret->id[oidret->len] = subnode->oid; + oidret->len++; + + return subnode; + } + } + } + + return NULL; +} + +/** initialize struct next_oid_state using this function before passing it to next_oid_check */ +void +snmp_next_oid_init(struct snmp_next_oid_state *state, + const u32_t *start_oid, u8_t start_oid_len, + u32_t *next_oid_buf, u8_t next_oid_max_len) +{ + state->start_oid = start_oid; + state->start_oid_len = start_oid_len; + state->next_oid = next_oid_buf; + state->next_oid_len = 0; + state->next_oid_max_len = next_oid_max_len; + state->status = SNMP_NEXT_OID_STATUS_NO_MATCH; +} + +/** checks if the passed incomplete OID may be a possible candidate for snmp_next_oid_check(); +this method is intended if the complete OID is not yet known but it is very expensive to build it up, +so it is possible to test the starting part before building up the complete oid and pass it to snmp_next_oid_check()*/ +u8_t +snmp_next_oid_precheck(struct snmp_next_oid_state *state, const u32_t *oid, u8_t oid_len) +{ + if (state->status != SNMP_NEXT_OID_STATUS_BUF_TO_SMALL) { + u8_t start_oid_len = (oid_len < state->start_oid_len) ? oid_len : state->start_oid_len; + + /* check passed OID is located behind start offset */ + if (snmp_oid_compare(oid, oid_len, state->start_oid, start_oid_len) >= 0) { + /* check if new oid is located closer to start oid than current closest oid */ + if ((state->status == SNMP_NEXT_OID_STATUS_NO_MATCH) || + (snmp_oid_compare(oid, oid_len, state->next_oid, state->next_oid_len) < 0)) { + return 1; + } + } + } + + return 0; +} + +/** checks the passed OID if it is a candidate to be the next one (get_next); returns !=0 if passed oid is currently closest, otherwise 0 */ +u8_t +snmp_next_oid_check(struct snmp_next_oid_state *state, const u32_t *oid, u8_t oid_len, void *reference) +{ + /* do not overwrite a fail result */ + if (state->status != SNMP_NEXT_OID_STATUS_BUF_TO_SMALL) { + /* check passed OID is located behind start offset */ + if (snmp_oid_compare(oid, oid_len, state->start_oid, state->start_oid_len) > 0) { + /* check if new oid is located closer to start oid than current closest oid */ + if ((state->status == SNMP_NEXT_OID_STATUS_NO_MATCH) || + (snmp_oid_compare(oid, oid_len, state->next_oid, state->next_oid_len) < 0)) { + if (oid_len <= state->next_oid_max_len) { + MEMCPY(state->next_oid, oid, oid_len * sizeof(u32_t)); + state->next_oid_len = oid_len; + state->status = SNMP_NEXT_OID_STATUS_SUCCESS; + state->reference = reference; + return 1; + } else { + state->status = SNMP_NEXT_OID_STATUS_BUF_TO_SMALL; + } + } + } + } + + return 0; +} + +u8_t +snmp_oid_in_range(const u32_t *oid_in, u8_t oid_len, const struct snmp_oid_range *oid_ranges, u8_t oid_ranges_len) +{ + u8_t i; + + if (oid_len != oid_ranges_len) { + return 0; + } + + for (i = 0; i < oid_ranges_len; i++) { + if ((oid_in[i] < oid_ranges[i].min) || (oid_in[i] > oid_ranges[i].max)) { + return 0; + } + } + + return 1; +} + +snmp_err_t +snmp_set_test_ok(struct snmp_node_instance *instance, u16_t value_len, void *value) +{ + LWIP_UNUSED_ARG(instance); + LWIP_UNUSED_ARG(value_len); + LWIP_UNUSED_ARG(value); + + return SNMP_ERR_NOERROR; +} + +/** + * Decodes BITS pseudotype value from ASN.1 OctetString. + * + * @note Because BITS pseudo type is encoded as OCTET STRING, it cannot directly + * be encoded/decoded by the agent. Instead call this function as required from + * get/test/set methods. + * + * @param buf points to a buffer holding the ASN1 octet string + * @param buf_len length of octet string + * @param bit_value decoded Bit value with Bit0 == LSB + * @return ERR_OK if successful, ERR_ARG if bit value contains more than 32 bit + */ +err_t +snmp_decode_bits(const u8_t *buf, u32_t buf_len, u32_t *bit_value) +{ + u8_t b; + u8_t bits_processed = 0; + *bit_value = 0; + + while (buf_len > 0) { + /* any bit set in this byte? */ + if (*buf != 0x00) { + if (bits_processed >= 32) { + /* accept more than 4 bytes, but only when no bits are set */ + return ERR_VAL; + } + + b = *buf; + do { + if (b & 0x80) { + *bit_value |= (1 << bits_processed); + } + bits_processed++; + b <<= 1; + } while ((bits_processed & 0x07) != 0); /* &0x07 -> % 8 */ + } else { + bits_processed += 8; + } + + buf_len--; + buf++; + } + + return ERR_OK; +} + +err_t +snmp_decode_truthvalue(const s32_t *asn1_value, u8_t *bool_value) +{ + /* defined by RFC1443: + TruthValue ::= TEXTUAL-CONVENTION + STATUS current + DESCRIPTION + "Represents a boolean value." + SYNTAX INTEGER { true(1), false(2) } + */ + + if ((asn1_value == NULL) || (bool_value == NULL)) { + return ERR_ARG; + } + + if (*asn1_value == 1) { + *bool_value = 1; + } else if (*asn1_value == 2) { + *bool_value = 0; + } else { + return ERR_VAL; + } + + return ERR_OK; +} + +/** + * Encodes BITS pseudotype value into ASN.1 OctetString. + * + * @note Because BITS pseudo type is encoded as OCTET STRING, it cannot directly + * be encoded/decoded by the agent. Instead call this function as required from + * get/test/set methods. + * + * @param buf points to a buffer where the resulting ASN1 octet string is stored to + * @param buf_len max length of the buffer + * @param bit_value Bit value to encode with Bit0 == LSB + * @param bit_count Number of possible bits for the bit value (according to rfc we have to send all bits independent from their truth value) + * @return number of bytes used from buffer to store the resulting OctetString + */ +u8_t +snmp_encode_bits(u8_t *buf, u32_t buf_len, u32_t bit_value, u8_t bit_count) +{ + u8_t len = 0; + u8_t min_bytes = (bit_count + 7) >> 3; /* >>3 -> / 8 */ + + while ((buf_len > 0) && (bit_value != 0x00)) { + s8_t i = 7; + *buf = 0x00; + while (i >= 0) { + if (bit_value & 0x01) { + *buf |= 0x01; + } + + if (i > 0) { + *buf <<= 1; + } + + bit_value >>= 1; + i--; + } + + buf++; + buf_len--; + len++; + } + + if (len < min_bytes) { + buf += len; + buf_len -= len; + + while ((len < min_bytes) && (buf_len > 0)) { + *buf = 0x00; + buf++; + buf_len--; + len++; + } + } + + return len; +} + +u8_t +snmp_encode_truthvalue(s32_t *asn1_value, u32_t bool_value) +{ + /* defined by RFC1443: + TruthValue ::= TEXTUAL-CONVENTION + STATUS current + DESCRIPTION + "Represents a boolean value." + SYNTAX INTEGER { true(1), false(2) } + */ + + if (asn1_value == NULL) { + return 0; + } + + if (bool_value) { + *asn1_value = 1; /* defined by RFC1443 */ + } else { + *asn1_value = 2; /* defined by RFC1443 */ + } + + return sizeof(s32_t); +} + +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_core_priv.h b/middleware/lwip/src/apps/snmp/snmp_core_priv.h new file mode 100644 index 0000000..9532c05 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_core_priv.h @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Martin Hentschel + * + */ + +#ifndef LWIP_HDR_APPS_SNMP_CORE_PRIV_H +#define LWIP_HDR_APPS_SNMP_CORE_PRIV_H + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/apps/snmp_core.h" +#include "snmp_asn1.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* (outdated) SNMPv1 error codes + * shall not be used by MIBS anymore, nevertheless required from core for properly answering a v1 request + */ +#define SNMP_ERR_NOSUCHNAME 2 +#define SNMP_ERR_BADVALUE 3 +#define SNMP_ERR_READONLY 4 +/* error codes which are internal and shall not be used by MIBS + * shall not be used by MIBS anymore, nevertheless required from core for properly answering a v1 request + */ +#define SNMP_ERR_TOOBIG 1 +#define SNMP_ERR_AUTHORIZATIONERROR 16 + +#define SNMP_ERR_UNKNOWN_ENGINEID 30 +#define SNMP_ERR_UNKNOWN_SECURITYNAME 31 +#define SNMP_ERR_UNSUPPORTED_SECLEVEL 32 +#define SNMP_ERR_NOTINTIMEWINDOW 33 +#define SNMP_ERR_DECRYIPTION_ERROR 34 + +#define SNMP_ERR_NOSUCHOBJECT SNMP_VARBIND_EXCEPTION_OFFSET + SNMP_ASN1_CONTEXT_VARBIND_NO_SUCH_OBJECT +#define SNMP_ERR_ENDOFMIBVIEW SNMP_VARBIND_EXCEPTION_OFFSET + SNMP_ASN1_CONTEXT_VARBIND_END_OF_MIB_VIEW + + +const struct snmp_node *snmp_mib_tree_resolve_exact(const struct snmp_mib *mib, const u32_t *oid, u8_t oid_len, u8_t *oid_instance_len); +const struct snmp_node *snmp_mib_tree_resolve_next(const struct snmp_mib *mib, const u32_t *oid, u8_t oid_len, struct snmp_obj_id *oidret); + +typedef u8_t (*snmp_validate_node_instance_method)(struct snmp_node_instance *, void *); + +u8_t snmp_get_node_instance_from_oid(const u32_t *oid, u8_t oid_len, struct snmp_node_instance *node_instance); +u8_t snmp_get_next_node_instance_from_oid(const u32_t *oid, u8_t oid_len, snmp_validate_node_instance_method validate_node_instance_method, void *validate_node_instance_arg, struct snmp_obj_id *node_oid, struct snmp_node_instance *node_instance); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_SNMP */ + +#endif /* LWIP_HDR_APPS_SNMP_CORE_PRIV_H */ diff --git a/middleware/lwip/src/apps/snmp/snmp_mib2.c b/middleware/lwip/src/apps/snmp/snmp_mib2.c new file mode 100644 index 0000000..3383e44 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_mib2.c @@ -0,0 +1,116 @@ +/** + * @file + * Management Information Base II (RFC1213) objects and functions. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + * Christiaan Simons + */ + +/** + * @defgroup snmp_mib2 MIB2 + * @ingroup snmp + */ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP && SNMP_LWIP_MIB2 /* don't build if not configured for use in lwipopts.h */ + +#if !LWIP_STATS +#error LWIP_SNMP MIB2 needs LWIP_STATS (for MIB2) +#endif +#if !MIB2_STATS +#error LWIP_SNMP MIB2 needs MIB2_STATS (for MIB2) +#endif + +#include "lwip/snmp.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_mib2.h" +#include "lwip/apps/snmp_scalar.h" + +#if SNMP_USE_NETCONN +#include "lwip/tcpip.h" +#include "lwip/priv/tcpip_priv.h" +void +snmp_mib2_lwip_synchronizer(snmp_threadsync_called_fn fn, void *arg) +{ +#if LWIP_TCPIP_CORE_LOCKING + LOCK_TCPIP_CORE(); + fn(arg); + UNLOCK_TCPIP_CORE(); +#else + tcpip_callback(fn, arg); +#endif +} + +struct snmp_threadsync_instance snmp_mib2_lwip_locks; +#endif + +/* dot3 and EtherLike MIB not planned. (transmission .1.3.6.1.2.1.10) */ +/* historical (some say hysterical). (cmot .1.3.6.1.2.1.9) */ +/* lwIP has no EGP, thus may not implement it. (egp .1.3.6.1.2.1.8) */ + +/* --- mib-2 .1.3.6.1.2.1 ----------------------------------------------------- */ +extern const struct snmp_scalar_array_node snmp_mib2_snmp_root; +extern const struct snmp_tree_node snmp_mib2_udp_root; +extern const struct snmp_tree_node snmp_mib2_tcp_root; +extern const struct snmp_scalar_array_node snmp_mib2_icmp_root; +extern const struct snmp_tree_node snmp_mib2_interface_root; +extern const struct snmp_scalar_array_node snmp_mib2_system_node; +extern const struct snmp_tree_node snmp_mib2_at_root; +extern const struct snmp_tree_node snmp_mib2_ip_root; + +static const struct snmp_node *const mib2_nodes[] = { + &snmp_mib2_system_node.node.node, + &snmp_mib2_interface_root.node, +#if LWIP_ARP && LWIP_IPV4 + &snmp_mib2_at_root.node, +#endif /* LWIP_ARP && LWIP_IPV4 */ +#if LWIP_IPV4 + &snmp_mib2_ip_root.node, +#endif /* LWIP_IPV4 */ +#if LWIP_ICMP + &snmp_mib2_icmp_root.node.node, +#endif /* LWIP_ICMP */ +#if LWIP_TCP + &snmp_mib2_tcp_root.node, +#endif /* LWIP_TCP */ +#if LWIP_UDP + &snmp_mib2_udp_root.node, +#endif /* LWIP_UDP */ + &snmp_mib2_snmp_root.node.node +}; + +static const struct snmp_tree_node mib2_root = SNMP_CREATE_TREE_NODE(1, mib2_nodes); + +static const u32_t mib2_base_oid_arr[] = { 1, 3, 6, 1, 2, 1 }; +const struct snmp_mib mib2 = SNMP_MIB_CREATE(mib2_base_oid_arr, &mib2_root.node); + +#endif /* LWIP_SNMP && SNMP_LWIP_MIB2 */ diff --git a/middleware/lwip/src/apps/snmp/snmp_mib2_icmp.c b/middleware/lwip/src/apps/snmp/snmp_mib2_icmp.c new file mode 100644 index 0000000..033d229 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_mib2_icmp.c @@ -0,0 +1,182 @@ +/** + * @file + * Management Information Base II (RFC1213) ICMP objects and functions. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + * Christiaan Simons + */ + +#include "lwip/snmp.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_mib2.h" +#include "lwip/apps/snmp_table.h" +#include "lwip/apps/snmp_scalar.h" +#include "lwip/icmp.h" +#include "lwip/stats.h" + +#if LWIP_SNMP && SNMP_LWIP_MIB2 && LWIP_ICMP + +#if SNMP_USE_NETCONN +#define SYNC_NODE_NAME(node_name) node_name ## _synced +#define CREATE_LWIP_SYNC_NODE(oid, node_name) \ + static const struct snmp_threadsync_node node_name ## _synced = SNMP_CREATE_THREAD_SYNC_NODE(oid, &node_name.node, &snmp_mib2_lwip_locks); +#else +#define SYNC_NODE_NAME(node_name) node_name +#define CREATE_LWIP_SYNC_NODE(oid, node_name) +#endif + +/* --- icmp .1.3.6.1.2.1.5 ----------------------------------------------------- */ + +static s16_t +icmp_get_value(const struct snmp_scalar_array_node_def *node, void *value) +{ + u32_t *uint_ptr = (u32_t *)value; + + switch (node->oid) { + case 1: /* icmpInMsgs */ + *uint_ptr = STATS_GET(mib2.icmpinmsgs); + return sizeof(*uint_ptr); + case 2: /* icmpInErrors */ + *uint_ptr = STATS_GET(mib2.icmpinerrors); + return sizeof(*uint_ptr); + case 3: /* icmpInDestUnreachs */ + *uint_ptr = STATS_GET(mib2.icmpindestunreachs); + return sizeof(*uint_ptr); + case 4: /* icmpInTimeExcds */ + *uint_ptr = STATS_GET(mib2.icmpintimeexcds); + return sizeof(*uint_ptr); + case 5: /* icmpInParmProbs */ + *uint_ptr = STATS_GET(mib2.icmpinparmprobs); + return sizeof(*uint_ptr); + case 6: /* icmpInSrcQuenchs */ + *uint_ptr = STATS_GET(mib2.icmpinsrcquenchs); + return sizeof(*uint_ptr); + case 7: /* icmpInRedirects */ + *uint_ptr = STATS_GET(mib2.icmpinredirects); + return sizeof(*uint_ptr); + case 8: /* icmpInEchos */ + *uint_ptr = STATS_GET(mib2.icmpinechos); + return sizeof(*uint_ptr); + case 9: /* icmpInEchoReps */ + *uint_ptr = STATS_GET(mib2.icmpinechoreps); + return sizeof(*uint_ptr); + case 10: /* icmpInTimestamps */ + *uint_ptr = STATS_GET(mib2.icmpintimestamps); + return sizeof(*uint_ptr); + case 11: /* icmpInTimestampReps */ + *uint_ptr = STATS_GET(mib2.icmpintimestampreps); + return sizeof(*uint_ptr); + case 12: /* icmpInAddrMasks */ + *uint_ptr = STATS_GET(mib2.icmpinaddrmasks); + return sizeof(*uint_ptr); + case 13: /* icmpInAddrMaskReps */ + *uint_ptr = STATS_GET(mib2.icmpinaddrmaskreps); + return sizeof(*uint_ptr); + case 14: /* icmpOutMsgs */ + *uint_ptr = STATS_GET(mib2.icmpoutmsgs); + return sizeof(*uint_ptr); + case 15: /* icmpOutErrors */ + *uint_ptr = STATS_GET(mib2.icmpouterrors); + return sizeof(*uint_ptr); + case 16: /* icmpOutDestUnreachs */ + *uint_ptr = STATS_GET(mib2.icmpoutdestunreachs); + return sizeof(*uint_ptr); + case 17: /* icmpOutTimeExcds */ + *uint_ptr = STATS_GET(mib2.icmpouttimeexcds); + return sizeof(*uint_ptr); + case 18: /* icmpOutParmProbs: not supported -> always 0 */ + *uint_ptr = 0; + return sizeof(*uint_ptr); + case 19: /* icmpOutSrcQuenchs: not supported -> always 0 */ + *uint_ptr = 0; + return sizeof(*uint_ptr); + case 20: /* icmpOutRedirects: not supported -> always 0 */ + *uint_ptr = 0; + return sizeof(*uint_ptr); + case 21: /* icmpOutEchos */ + *uint_ptr = STATS_GET(mib2.icmpoutechos); + return sizeof(*uint_ptr); + case 22: /* icmpOutEchoReps */ + *uint_ptr = STATS_GET(mib2.icmpoutechoreps); + return sizeof(*uint_ptr); + case 23: /* icmpOutTimestamps: not supported -> always 0 */ + *uint_ptr = 0; + return sizeof(*uint_ptr); + case 24: /* icmpOutTimestampReps: not supported -> always 0 */ + *uint_ptr = 0; + return sizeof(*uint_ptr); + case 25: /* icmpOutAddrMasks: not supported -> always 0 */ + *uint_ptr = 0; + return sizeof(*uint_ptr); + case 26: /* icmpOutAddrMaskReps: not supported -> always 0 */ + *uint_ptr = 0; + return sizeof(*uint_ptr); + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("icmp_get_value(): unknown id: %"S32_F"\n", node->oid)); + break; + } + + return 0; +} + + +static const struct snmp_scalar_array_node_def icmp_nodes[] = { + { 1, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + { 2, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + { 3, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + { 4, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + { 5, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + { 6, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + { 7, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + { 8, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + { 9, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {10, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {11, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {12, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {13, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {14, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {15, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {16, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {17, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {18, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {19, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {20, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {21, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {22, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {23, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {24, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {25, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, + {26, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY} +}; + +const struct snmp_scalar_array_node snmp_mib2_icmp_root = SNMP_SCALAR_CREATE_ARRAY_NODE(5, icmp_nodes, icmp_get_value, NULL, NULL); + +#endif /* LWIP_SNMP && SNMP_LWIP_MIB2 && LWIP_ICMP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_mib2_interfaces.c b/middleware/lwip/src/apps/snmp/snmp_mib2_interfaces.c new file mode 100644 index 0000000..5f12dd5 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_mib2_interfaces.c @@ -0,0 +1,368 @@ +/** + * @file + * Management Information Base II (RFC1213) INTERFACES objects and functions. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + * Christiaan Simons + */ + +#include "lwip/snmp.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_mib2.h" +#include "lwip/apps/snmp_table.h" +#include "lwip/apps/snmp_scalar.h" +#include "lwip/netif.h" +#include "lwip/stats.h" + +#include + +#if LWIP_SNMP && SNMP_LWIP_MIB2 + +#if SNMP_USE_NETCONN +#define SYNC_NODE_NAME(node_name) node_name ## _synced +#define CREATE_LWIP_SYNC_NODE(oid, node_name) \ + static const struct snmp_threadsync_node node_name ## _synced = SNMP_CREATE_THREAD_SYNC_NODE(oid, &node_name.node, &snmp_mib2_lwip_locks); +#else +#define SYNC_NODE_NAME(node_name) node_name +#define CREATE_LWIP_SYNC_NODE(oid, node_name) +#endif + + +/* --- interfaces .1.3.6.1.2.1.2 ----------------------------------------------------- */ + +static s16_t +interfaces_get_value(struct snmp_node_instance *instance, void *value) +{ + if (instance->node->oid == 1) { + s32_t *sint_ptr = (s32_t *)value; + s32_t num_netifs = 0; + + struct netif *netif; + NETIF_FOREACH(netif) { + num_netifs++; + } + + *sint_ptr = num_netifs; + return sizeof(*sint_ptr); + } + + return 0; +} + +/* list of allowed value ranges for incoming OID */ +static const struct snmp_oid_range interfaces_Table_oid_ranges[] = { + { 1, 0xff } /* netif->num is u8_t */ +}; + +static const u8_t iftable_ifOutQLen = 0; + +static const u8_t iftable_ifOperStatus_up = 1; +static const u8_t iftable_ifOperStatus_down = 2; + +static const u8_t iftable_ifAdminStatus_up = 1; +static const u8_t iftable_ifAdminStatus_lowerLayerDown = 7; +static const u8_t iftable_ifAdminStatus_down = 2; + +static snmp_err_t +interfaces_Table_get_cell_instance(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, struct snmp_node_instance *cell_instance) +{ + u32_t ifIndex; + struct netif *netif; + + LWIP_UNUSED_ARG(column); + + /* check if incoming OID length and if values are in plausible range */ + if (!snmp_oid_in_range(row_oid, row_oid_len, interfaces_Table_oid_ranges, LWIP_ARRAYSIZE(interfaces_Table_oid_ranges))) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* get netif index from incoming OID */ + ifIndex = row_oid[0]; + + /* find netif with index */ + NETIF_FOREACH(netif) { + if (netif_to_num(netif) == ifIndex) { + /* store netif pointer for subsequent operations (get/test/set) */ + cell_instance->reference.ptr = netif; + return SNMP_ERR_NOERROR; + } + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static snmp_err_t +interfaces_Table_get_next_cell_instance(const u32_t *column, struct snmp_obj_id *row_oid, struct snmp_node_instance *cell_instance) +{ + struct netif *netif; + struct snmp_next_oid_state state; + u32_t result_temp[LWIP_ARRAYSIZE(interfaces_Table_oid_ranges)]; + + LWIP_UNUSED_ARG(column); + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(interfaces_Table_oid_ranges)); + + /* iterate over all possible OIDs to find the next one */ + NETIF_FOREACH(netif) { + u32_t test_oid[LWIP_ARRAYSIZE(interfaces_Table_oid_ranges)]; + test_oid[0] = netif_to_num(netif); + + /* check generated OID: is it a candidate for the next one? */ + snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(interfaces_Table_oid_ranges), netif); + } + + /* did we find a next one? */ + if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { + snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); + /* store netif pointer for subsequent operations (get/test/set) */ + cell_instance->reference.ptr = /* (struct netif*) */state.reference; + return SNMP_ERR_NOERROR; + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static s16_t +interfaces_Table_get_value(struct snmp_node_instance *instance, void *value) +{ + struct netif *netif = (struct netif *)instance->reference.ptr; + u32_t *value_u32 = (u32_t *)value; + s32_t *value_s32 = (s32_t *)value; + u16_t value_len; + + switch (SNMP_TABLE_GET_COLUMN_FROM_OID(instance->instance_oid.id)) { + case 1: /* ifIndex */ + *value_s32 = netif_to_num(netif); + value_len = sizeof(*value_s32); + break; + case 2: /* ifDescr */ + value_len = sizeof(netif->name); + MEMCPY(value, netif->name, value_len); + break; + case 3: /* ifType */ + *value_s32 = netif->link_type; + value_len = sizeof(*value_s32); + break; + case 4: /* ifMtu */ + *value_s32 = netif->mtu; + value_len = sizeof(*value_s32); + break; + case 5: /* ifSpeed */ + *value_u32 = netif->link_speed; + value_len = sizeof(*value_u32); + break; + case 6: /* ifPhysAddress */ + value_len = sizeof(netif->hwaddr); + MEMCPY(value, &netif->hwaddr, value_len); + break; + case 7: /* ifAdminStatus */ + if (netif_is_up(netif)) { + *value_s32 = iftable_ifOperStatus_up; + } else { + *value_s32 = iftable_ifOperStatus_down; + } + value_len = sizeof(*value_s32); + break; + case 8: /* ifOperStatus */ + if (netif_is_up(netif)) { + if (netif_is_link_up(netif)) { + *value_s32 = iftable_ifAdminStatus_up; + } else { + *value_s32 = iftable_ifAdminStatus_lowerLayerDown; + } + } else { + *value_s32 = iftable_ifAdminStatus_down; + } + value_len = sizeof(*value_s32); + break; + case 9: /* ifLastChange */ + *value_u32 = netif->ts; + value_len = sizeof(*value_u32); + break; + case 10: /* ifInOctets */ + *value_u32 = netif->mib2_counters.ifinoctets; + value_len = sizeof(*value_u32); + break; + case 11: /* ifInUcastPkts */ + *value_u32 = netif->mib2_counters.ifinucastpkts; + value_len = sizeof(*value_u32); + break; + case 12: /* ifInNUcastPkts */ + *value_u32 = netif->mib2_counters.ifinnucastpkts; + value_len = sizeof(*value_u32); + break; + case 13: /* ifInDiscards */ + *value_u32 = netif->mib2_counters.ifindiscards; + value_len = sizeof(*value_u32); + break; + case 14: /* ifInErrors */ + *value_u32 = netif->mib2_counters.ifinerrors; + value_len = sizeof(*value_u32); + break; + case 15: /* ifInUnkownProtos */ + *value_u32 = netif->mib2_counters.ifinunknownprotos; + value_len = sizeof(*value_u32); + break; + case 16: /* ifOutOctets */ + *value_u32 = netif->mib2_counters.ifoutoctets; + value_len = sizeof(*value_u32); + break; + case 17: /* ifOutUcastPkts */ + *value_u32 = netif->mib2_counters.ifoutucastpkts; + value_len = sizeof(*value_u32); + break; + case 18: /* ifOutNUcastPkts */ + *value_u32 = netif->mib2_counters.ifoutnucastpkts; + value_len = sizeof(*value_u32); + break; + case 19: /* ifOutDiscarts */ + *value_u32 = netif->mib2_counters.ifoutdiscards; + value_len = sizeof(*value_u32); + break; + case 20: /* ifOutErrors */ + *value_u32 = netif->mib2_counters.ifouterrors; + value_len = sizeof(*value_u32); + break; + case 21: /* ifOutQLen */ + *value_u32 = iftable_ifOutQLen; + value_len = sizeof(*value_u32); + break; + /** @note returning zeroDotZero (0.0) no media specific MIB support */ + case 22: /* ifSpecific */ + value_len = snmp_zero_dot_zero.len * sizeof(u32_t); + MEMCPY(value, snmp_zero_dot_zero.id, value_len); + break; + default: + return 0; + } + + return value_len; +} + +#if !SNMP_SAFE_REQUESTS + +static snmp_err_t +interfaces_Table_set_test(struct snmp_node_instance *instance, u16_t len, void *value) +{ + s32_t *sint_ptr = (s32_t *)value; + + /* stack should never call this method for another column, + because all other columns are set to readonly */ + LWIP_ASSERT("Invalid column", (SNMP_TABLE_GET_COLUMN_FROM_OID(instance->instance_oid.id) == 7)); + LWIP_UNUSED_ARG(len); + + if (*sint_ptr == 1 || *sint_ptr == 2) { + return SNMP_ERR_NOERROR; + } + + return SNMP_ERR_WRONGVALUE; +} + +static snmp_err_t +interfaces_Table_set_value(struct snmp_node_instance *instance, u16_t len, void *value) +{ + struct netif *netif = (struct netif *)instance->reference.ptr; + s32_t *sint_ptr = (s32_t *)value; + + /* stack should never call this method for another column, + because all other columns are set to readonly */ + LWIP_ASSERT("Invalid column", (SNMP_TABLE_GET_COLUMN_FROM_OID(instance->instance_oid.id) == 7)); + LWIP_UNUSED_ARG(len); + + if (*sint_ptr == 1) { + netif_set_up(netif); + } else if (*sint_ptr == 2) { + netif_set_down(netif); + } + + return SNMP_ERR_NOERROR; +} + +#endif /* SNMP_SAFE_REQUESTS */ + +static const struct snmp_scalar_node interfaces_Number = SNMP_SCALAR_CREATE_NODE_READONLY(1, SNMP_ASN1_TYPE_INTEGER, interfaces_get_value); + +static const struct snmp_table_col_def interfaces_Table_columns[] = { + { 1, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifIndex */ + { 2, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifDescr */ + { 3, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifType */ + { 4, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifMtu */ + { 5, SNMP_ASN1_TYPE_GAUGE, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifSpeed */ + { 6, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifPhysAddress */ +#if !SNMP_SAFE_REQUESTS + { 7, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_WRITE }, /* ifAdminStatus */ +#else + { 7, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifAdminStatus */ +#endif + { 8, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifOperStatus */ + { 9, SNMP_ASN1_TYPE_TIMETICKS, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifLastChange */ + { 10, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifInOctets */ + { 11, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifInUcastPkts */ + { 12, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifInNUcastPkts */ + { 13, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifInDiscarts */ + { 14, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifInErrors */ + { 15, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifInUnkownProtos */ + { 16, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifOutOctets */ + { 17, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifOutUcastPkts */ + { 18, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifOutNUcastPkts */ + { 19, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifOutDiscarts */ + { 20, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifOutErrors */ + { 21, SNMP_ASN1_TYPE_GAUGE, SNMP_NODE_INSTANCE_READ_ONLY }, /* ifOutQLen */ + { 22, SNMP_ASN1_TYPE_OBJECT_ID, SNMP_NODE_INSTANCE_READ_ONLY } /* ifSpecific */ +}; + +#if !SNMP_SAFE_REQUESTS +static const struct snmp_table_node interfaces_Table = SNMP_TABLE_CREATE( + 2, interfaces_Table_columns, + interfaces_Table_get_cell_instance, interfaces_Table_get_next_cell_instance, + interfaces_Table_get_value, interfaces_Table_set_test, interfaces_Table_set_value); +#else +static const struct snmp_table_node interfaces_Table = SNMP_TABLE_CREATE( + 2, interfaces_Table_columns, + interfaces_Table_get_cell_instance, interfaces_Table_get_next_cell_instance, + interfaces_Table_get_value, NULL, NULL); +#endif + +/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ +CREATE_LWIP_SYNC_NODE(1, interfaces_Number) +CREATE_LWIP_SYNC_NODE(2, interfaces_Table) + +static const struct snmp_node *const interface_nodes[] = { + &SYNC_NODE_NAME(interfaces_Number).node.node, + &SYNC_NODE_NAME(interfaces_Table).node.node +}; + +const struct snmp_tree_node snmp_mib2_interface_root = SNMP_CREATE_TREE_NODE(2, interface_nodes); + +#endif /* LWIP_SNMP && SNMP_LWIP_MIB2 */ diff --git a/middleware/lwip/src/apps/snmp/snmp_mib2_ip.c b/middleware/lwip/src/apps/snmp/snmp_mib2_ip.c new file mode 100644 index 0000000..57cf0f5 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_mib2_ip.c @@ -0,0 +1,731 @@ +/** + * @file + * Management Information Base II (RFC1213) IP objects and functions. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + * Christiaan Simons + */ + +#include "lwip/snmp.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_mib2.h" +#include "lwip/apps/snmp_table.h" +#include "lwip/apps/snmp_scalar.h" +#include "lwip/stats.h" +#include "lwip/netif.h" +#include "lwip/ip.h" +#include "lwip/etharp.h" + +#if LWIP_SNMP && SNMP_LWIP_MIB2 + +#if SNMP_USE_NETCONN +#define SYNC_NODE_NAME(node_name) node_name ## _synced +#define CREATE_LWIP_SYNC_NODE(oid, node_name) \ + static const struct snmp_threadsync_node node_name ## _synced = SNMP_CREATE_THREAD_SYNC_NODE(oid, &node_name.node, &snmp_mib2_lwip_locks); +#else +#define SYNC_NODE_NAME(node_name) node_name +#define CREATE_LWIP_SYNC_NODE(oid, node_name) +#endif + +#if LWIP_IPV4 +/* --- ip .1.3.6.1.2.1.4 ----------------------------------------------------- */ + +static s16_t +ip_get_value(struct snmp_node_instance *instance, void *value) +{ + s32_t *sint_ptr = (s32_t *)value; + u32_t *uint_ptr = (u32_t *)value; + + switch (instance->node->oid) { + case 1: /* ipForwarding */ +#if IP_FORWARD + /* forwarding */ + *sint_ptr = 1; +#else + /* not-forwarding */ + *sint_ptr = 2; +#endif + return sizeof(*sint_ptr); + case 2: /* ipDefaultTTL */ + *sint_ptr = IP_DEFAULT_TTL; + return sizeof(*sint_ptr); + case 3: /* ipInReceives */ + *uint_ptr = STATS_GET(mib2.ipinreceives); + return sizeof(*uint_ptr); + case 4: /* ipInHdrErrors */ + *uint_ptr = STATS_GET(mib2.ipinhdrerrors); + return sizeof(*uint_ptr); + case 5: /* ipInAddrErrors */ + *uint_ptr = STATS_GET(mib2.ipinaddrerrors); + return sizeof(*uint_ptr); + case 6: /* ipForwDatagrams */ + *uint_ptr = STATS_GET(mib2.ipforwdatagrams); + return sizeof(*uint_ptr); + case 7: /* ipInUnknownProtos */ + *uint_ptr = STATS_GET(mib2.ipinunknownprotos); + return sizeof(*uint_ptr); + case 8: /* ipInDiscards */ + *uint_ptr = STATS_GET(mib2.ipindiscards); + return sizeof(*uint_ptr); + case 9: /* ipInDelivers */ + *uint_ptr = STATS_GET(mib2.ipindelivers); + return sizeof(*uint_ptr); + case 10: /* ipOutRequests */ + *uint_ptr = STATS_GET(mib2.ipoutrequests); + return sizeof(*uint_ptr); + case 11: /* ipOutDiscards */ + *uint_ptr = STATS_GET(mib2.ipoutdiscards); + return sizeof(*uint_ptr); + case 12: /* ipOutNoRoutes */ + *uint_ptr = STATS_GET(mib2.ipoutnoroutes); + return sizeof(*uint_ptr); + case 13: /* ipReasmTimeout */ +#if IP_REASSEMBLY + *sint_ptr = IP_REASS_MAXAGE; +#else + *sint_ptr = 0; +#endif + return sizeof(*sint_ptr); + case 14: /* ipReasmReqds */ + *uint_ptr = STATS_GET(mib2.ipreasmreqds); + return sizeof(*uint_ptr); + case 15: /* ipReasmOKs */ + *uint_ptr = STATS_GET(mib2.ipreasmoks); + return sizeof(*uint_ptr); + case 16: /* ipReasmFails */ + *uint_ptr = STATS_GET(mib2.ipreasmfails); + return sizeof(*uint_ptr); + case 17: /* ipFragOKs */ + *uint_ptr = STATS_GET(mib2.ipfragoks); + return sizeof(*uint_ptr); + case 18: /* ipFragFails */ + *uint_ptr = STATS_GET(mib2.ipfragfails); + return sizeof(*uint_ptr); + case 19: /* ipFragCreates */ + *uint_ptr = STATS_GET(mib2.ipfragcreates); + return sizeof(*uint_ptr); + case 23: /* ipRoutingDiscards: not supported -> always 0 */ + *uint_ptr = 0; + return sizeof(*uint_ptr); + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("ip_get_value(): unknown id: %"S32_F"\n", instance->node->oid)); + break; + } + + return 0; +} + +/** + * Test ip object value before setting. + * + * @param instance node instance + * @param len return value space (in bytes) + * @param value points to (varbind) space to copy value from. + * + * @note we allow set if the value matches the hardwired value, + * otherwise return badvalue. + */ +static snmp_err_t +ip_set_test(struct snmp_node_instance *instance, u16_t len, void *value) +{ + snmp_err_t ret = SNMP_ERR_WRONGVALUE; + s32_t *sint_ptr = (s32_t *)value; + + LWIP_UNUSED_ARG(len); + switch (instance->node->oid) { + case 1: /* ipForwarding */ +#if IP_FORWARD + /* forwarding */ + if (*sint_ptr == 1) +#else + /* not-forwarding */ + if (*sint_ptr == 2) +#endif + { + ret = SNMP_ERR_NOERROR; + } + break; + case 2: /* ipDefaultTTL */ + if (*sint_ptr == IP_DEFAULT_TTL) { + ret = SNMP_ERR_NOERROR; + } + break; + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("ip_set_test(): unknown id: %"S32_F"\n", instance->node->oid)); + break; + } + + return ret; +} + +static snmp_err_t +ip_set_value(struct snmp_node_instance *instance, u16_t len, void *value) +{ + LWIP_UNUSED_ARG(instance); + LWIP_UNUSED_ARG(len); + LWIP_UNUSED_ARG(value); + /* nothing to do here because in set_test we only accept values being the same as our own stored value -> no need to store anything */ + return SNMP_ERR_NOERROR; +} + +/* --- ipAddrTable --- */ + +/* list of allowed value ranges for incoming OID */ +static const struct snmp_oid_range ip_AddrTable_oid_ranges[] = { + { 0, 0xff }, /* IP A */ + { 0, 0xff }, /* IP B */ + { 0, 0xff }, /* IP C */ + { 0, 0xff } /* IP D */ +}; + +static snmp_err_t +ip_AddrTable_get_cell_value_core(struct netif *netif, const u32_t *column, union snmp_variant_value *value, u32_t *value_len) +{ + LWIP_UNUSED_ARG(value_len); + + switch (*column) { + case 1: /* ipAdEntAddr */ + value->u32 = netif_ip4_addr(netif)->addr; + break; + case 2: /* ipAdEntIfIndex */ + value->u32 = netif_to_num(netif); + break; + case 3: /* ipAdEntNetMask */ + value->u32 = netif_ip4_netmask(netif)->addr; + break; + case 4: /* ipAdEntBcastAddr */ + /* lwIP oddity, there's no broadcast + address in the netif we can rely on */ + value->u32 = IPADDR_BROADCAST & 1; + break; + case 5: /* ipAdEntReasmMaxSize */ +#if IP_REASSEMBLY + /* @todo The theoretical maximum is IP_REASS_MAX_PBUFS * size of the pbufs, + * but only if receiving one fragmented packet at a time. + * The current solution is to calculate for 2 simultaneous packets... + */ + value->u32 = (IP_HLEN + ((IP_REASS_MAX_PBUFS / 2) * + (PBUF_POOL_BUFSIZE - PBUF_LINK_ENCAPSULATION_HLEN - PBUF_LINK_HLEN - IP_HLEN))); +#else + /** @todo returning MTU would be a bad thing and + returning a wild guess like '576' isn't good either */ + value->u32 = 0; +#endif + break; + default: + return SNMP_ERR_NOSUCHINSTANCE; + } + + return SNMP_ERR_NOERROR; +} + +static snmp_err_t +ip_AddrTable_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len) +{ + ip4_addr_t ip; + struct netif *netif; + + /* check if incoming OID length and if values are in plausible range */ + if (!snmp_oid_in_range(row_oid, row_oid_len, ip_AddrTable_oid_ranges, LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges))) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* get IP from incoming OID */ + snmp_oid_to_ip4(&row_oid[0], &ip); /* we know it succeeds because of oid_in_range check above */ + + /* find netif with requested ip */ + NETIF_FOREACH(netif) { + if (ip4_addr_eq(&ip, netif_ip4_addr(netif))) { + /* fill in object properties */ + return ip_AddrTable_get_cell_value_core(netif, column, value, value_len); + } + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static snmp_err_t +ip_AddrTable_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len) +{ + struct netif *netif; + struct snmp_next_oid_state state; + u32_t result_temp[LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges)]; + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges)); + + /* iterate over all possible OIDs to find the next one */ + NETIF_FOREACH(netif) { + u32_t test_oid[LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges)]; + snmp_ip4_to_oid(netif_ip4_addr(netif), &test_oid[0]); + + /* check generated OID: is it a candidate for the next one? */ + snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges), netif); + } + + /* did we find a next one? */ + if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { + snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); + /* fill in object properties */ + return ip_AddrTable_get_cell_value_core((struct netif *)state.reference, column, value, value_len); + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +/* --- ipRouteTable --- */ + +/* list of allowed value ranges for incoming OID */ +static const struct snmp_oid_range ip_RouteTable_oid_ranges[] = { + { 0, 0xff }, /* IP A */ + { 0, 0xff }, /* IP B */ + { 0, 0xff }, /* IP C */ + { 0, 0xff }, /* IP D */ +}; + +static snmp_err_t +ip_RouteTable_get_cell_value_core(struct netif *netif, u8_t default_route, const u32_t *column, union snmp_variant_value *value, u32_t *value_len) +{ + switch (*column) { + case 1: /* ipRouteDest */ + if (default_route) { + /* default rte has 0.0.0.0 dest */ + value->u32 = IP4_ADDR_ANY4->addr; + } else { + /* netifs have netaddress dest */ + ip4_addr_t tmp; + ip4_addr_get_network(&tmp, netif_ip4_addr(netif), netif_ip4_netmask(netif)); + value->u32 = tmp.addr; + } + break; + case 2: /* ipRouteIfIndex */ + value->u32 = netif_to_num(netif); + break; + case 3: /* ipRouteMetric1 */ + if (default_route) { + value->s32 = 1; /* default */ + } else { + value->s32 = 0; /* normal */ + } + break; + case 4: /* ipRouteMetric2 */ + case 5: /* ipRouteMetric3 */ + case 6: /* ipRouteMetric4 */ + value->s32 = -1; /* none */ + break; + case 7: /* ipRouteNextHop */ + if (default_route) { + /* default rte: gateway */ + value->u32 = netif_ip4_gw(netif)->addr; + } else { + /* other rtes: netif ip_addr */ + value->u32 = netif_ip4_addr(netif)->addr; + } + break; + case 8: /* ipRouteType */ + if (default_route) { + /* default rte is indirect */ + value->u32 = 4; /* indirect */ + } else { + /* other rtes are direct */ + value->u32 = 3; /* direct */ + } + break; + case 9: /* ipRouteProto */ + /* locally defined routes */ + value->u32 = 2; /* local */ + break; + case 10: /* ipRouteAge */ + /* @todo (sysuptime - timestamp last change) / 100 */ + value->u32 = 0; + break; + case 11: /* ipRouteMask */ + if (default_route) { + /* default rte use 0.0.0.0 mask */ + value->u32 = IP4_ADDR_ANY4->addr; + } else { + /* other rtes use netmask */ + value->u32 = netif_ip4_netmask(netif)->addr; + } + break; + case 12: /* ipRouteMetric5 */ + value->s32 = -1; /* none */ + break; + case 13: /* ipRouteInfo */ + value->const_ptr = snmp_zero_dot_zero.id; + *value_len = snmp_zero_dot_zero.len * sizeof(u32_t); + break; + default: + return SNMP_ERR_NOSUCHINSTANCE; + } + + return SNMP_ERR_NOERROR; +} + +static snmp_err_t +ip_RouteTable_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len) +{ + ip4_addr_t test_ip; + struct netif *netif; + + /* check if incoming OID length and if values are in plausible range */ + if (!snmp_oid_in_range(row_oid, row_oid_len, ip_RouteTable_oid_ranges, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges))) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* get IP and port from incoming OID */ + snmp_oid_to_ip4(&row_oid[0], &test_ip); /* we know it succeeds because of oid_in_range check above */ + + /* default route is on default netif */ + if (ip4_addr_isany_val(test_ip) && (netif_default != NULL)) { + /* fill in object properties */ + return ip_RouteTable_get_cell_value_core(netif_default, 1, column, value, value_len); + } + + /* find netif with requested route */ + NETIF_FOREACH(netif) { + ip4_addr_t dst; + ip4_addr_get_network(&dst, netif_ip4_addr(netif), netif_ip4_netmask(netif)); + + if (ip4_addr_eq(&dst, &test_ip)) { + /* fill in object properties */ + return ip_RouteTable_get_cell_value_core(netif, 0, column, value, value_len); + } + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static snmp_err_t +ip_RouteTable_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len) +{ + struct netif *netif; + struct snmp_next_oid_state state; + u32_t result_temp[LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges)]; + u32_t test_oid[LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges)]; + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges)); + + /* check default route */ + if (netif_default != NULL) { + snmp_ip4_to_oid(IP4_ADDR_ANY4, &test_oid[0]); + snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges), netif_default); + } + + /* iterate over all possible OIDs to find the next one */ + NETIF_FOREACH(netif) { + ip4_addr_t dst; + ip4_addr_get_network(&dst, netif_ip4_addr(netif), netif_ip4_netmask(netif)); + + /* check generated OID: is it a candidate for the next one? */ + if (!ip4_addr_isany_val(dst)) { + snmp_ip4_to_oid(&dst, &test_oid[0]); + snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges), netif); + } + } + + /* did we find a next one? */ + if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { + ip4_addr_t dst; + snmp_oid_to_ip4(&result_temp[0], &dst); + snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); + /* fill in object properties */ + return ip_RouteTable_get_cell_value_core((struct netif *)state.reference, ip4_addr_isany_val(dst), column, value, value_len); + } else { + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; + } +} + +#if LWIP_ARP && LWIP_IPV4 +/* --- ipNetToMediaTable --- */ + +/* list of allowed value ranges for incoming OID */ +static const struct snmp_oid_range ip_NetToMediaTable_oid_ranges[] = { + { 1, 0xff }, /* IfIndex */ + { 0, 0xff }, /* IP A */ + { 0, 0xff }, /* IP B */ + { 0, 0xff }, /* IP C */ + { 0, 0xff } /* IP D */ +}; + +static snmp_err_t +ip_NetToMediaTable_get_cell_value_core(size_t arp_table_index, const u32_t *column, union snmp_variant_value *value, u32_t *value_len) +{ + ip4_addr_t *ip; + struct netif *netif; + struct eth_addr *ethaddr; + + etharp_get_entry(arp_table_index, &ip, &netif, ðaddr); + + /* value */ + switch (*column) { + case 1: /* atIfIndex / ipNetToMediaIfIndex */ + value->u32 = netif_to_num(netif); + break; + case 2: /* atPhysAddress / ipNetToMediaPhysAddress */ + value->ptr = ethaddr; + *value_len = sizeof(*ethaddr); + break; + case 3: /* atNetAddress / ipNetToMediaNetAddress */ + value->u32 = ip->addr; + break; + case 4: /* ipNetToMediaType */ + value->u32 = 3; /* dynamic*/ + break; + default: + return SNMP_ERR_NOSUCHINSTANCE; + } + + return SNMP_ERR_NOERROR; +} + +static snmp_err_t +ip_NetToMediaTable_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len) +{ + ip4_addr_t ip_in; + u8_t netif_index; + size_t i; + + /* check if incoming OID length and if values are in plausible range */ + if (!snmp_oid_in_range(row_oid, row_oid_len, ip_NetToMediaTable_oid_ranges, LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges))) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* get IP from incoming OID */ + netif_index = (u8_t)row_oid[0]; + snmp_oid_to_ip4(&row_oid[1], &ip_in); /* we know it succeeds because of oid_in_range check above */ + + /* find requested entry */ + for (i = 0; i < ARP_TABLE_SIZE; i++) { + ip4_addr_t *ip; + struct netif *netif; + struct eth_addr *ethaddr; + + if (etharp_get_entry(i, &ip, &netif, ðaddr)) { + if ((netif_index == netif_to_num(netif)) && ip4_addr_eq(&ip_in, ip)) { + /* fill in object properties */ + return ip_NetToMediaTable_get_cell_value_core(i, column, value, value_len); + } + } + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static snmp_err_t +ip_NetToMediaTable_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len) +{ + size_t i; + struct snmp_next_oid_state state; + u32_t result_temp[LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges)]; + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges)); + + /* iterate over all possible OIDs to find the next one */ + for (i = 0; i < ARP_TABLE_SIZE; i++) { + ip4_addr_t *ip; + struct netif *netif; + struct eth_addr *ethaddr; + + if (etharp_get_entry(i, &ip, &netif, ðaddr)) { + u32_t test_oid[LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges)]; + + test_oid[0] = netif_to_num(netif); + snmp_ip4_to_oid(ip, &test_oid[1]); + + /* check generated OID: is it a candidate for the next one? */ + snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges), LWIP_PTR_NUMERIC_CAST(void *, i)); + } + } + + /* did we find a next one? */ + if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { + snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); + /* fill in object properties */ + return ip_NetToMediaTable_get_cell_value_core(LWIP_PTR_NUMERIC_CAST(size_t, state.reference), column, value, value_len); + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +#endif /* LWIP_ARP && LWIP_IPV4 */ + +static const struct snmp_scalar_node ip_Forwarding = SNMP_SCALAR_CREATE_NODE(1, SNMP_NODE_INSTANCE_READ_WRITE, SNMP_ASN1_TYPE_INTEGER, ip_get_value, ip_set_test, ip_set_value); +static const struct snmp_scalar_node ip_DefaultTTL = SNMP_SCALAR_CREATE_NODE(2, SNMP_NODE_INSTANCE_READ_WRITE, SNMP_ASN1_TYPE_INTEGER, ip_get_value, ip_set_test, ip_set_value); +static const struct snmp_scalar_node ip_InReceives = SNMP_SCALAR_CREATE_NODE_READONLY(3, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_InHdrErrors = SNMP_SCALAR_CREATE_NODE_READONLY(4, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_InAddrErrors = SNMP_SCALAR_CREATE_NODE_READONLY(5, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_ForwDatagrams = SNMP_SCALAR_CREATE_NODE_READONLY(6, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_InUnknownProtos = SNMP_SCALAR_CREATE_NODE_READONLY(7, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_InDiscards = SNMP_SCALAR_CREATE_NODE_READONLY(8, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_InDelivers = SNMP_SCALAR_CREATE_NODE_READONLY(9, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_OutRequests = SNMP_SCALAR_CREATE_NODE_READONLY(10, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_OutDiscards = SNMP_SCALAR_CREATE_NODE_READONLY(11, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_OutNoRoutes = SNMP_SCALAR_CREATE_NODE_READONLY(12, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_ReasmTimeout = SNMP_SCALAR_CREATE_NODE_READONLY(13, SNMP_ASN1_TYPE_INTEGER, ip_get_value); +static const struct snmp_scalar_node ip_ReasmReqds = SNMP_SCALAR_CREATE_NODE_READONLY(14, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_ReasmOKs = SNMP_SCALAR_CREATE_NODE_READONLY(15, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_ReasmFails = SNMP_SCALAR_CREATE_NODE_READONLY(16, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_FragOKs = SNMP_SCALAR_CREATE_NODE_READONLY(17, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_FragFails = SNMP_SCALAR_CREATE_NODE_READONLY(18, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_FragCreates = SNMP_SCALAR_CREATE_NODE_READONLY(19, SNMP_ASN1_TYPE_COUNTER, ip_get_value); +static const struct snmp_scalar_node ip_RoutingDiscards = SNMP_SCALAR_CREATE_NODE_READONLY(23, SNMP_ASN1_TYPE_COUNTER, ip_get_value); + +static const struct snmp_table_simple_col_def ip_AddrTable_columns[] = { + { 1, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntAddr */ + { 2, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntIfIndex */ + { 3, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntNetMask */ + { 4, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntBcastAddr */ + { 5, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 } /* ipAdEntReasmMaxSize */ +}; + +static const struct snmp_table_simple_node ip_AddrTable = SNMP_TABLE_CREATE_SIMPLE(20, ip_AddrTable_columns, ip_AddrTable_get_cell_value, ip_AddrTable_get_next_cell_instance_and_value); + +static const struct snmp_table_simple_col_def ip_RouteTable_columns[] = { + { 1, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteDest */ + { 2, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteIfIndex */ + { 3, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric1 */ + { 4, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric2 */ + { 5, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric3 */ + { 6, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric4 */ + { 7, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteNextHop */ + { 8, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteType */ + { 9, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteProto */ + { 10, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteAge */ + { 11, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteMask */ + { 12, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric5 */ + { 13, SNMP_ASN1_TYPE_OBJECT_ID, SNMP_VARIANT_VALUE_TYPE_PTR } /* ipRouteInfo */ +}; + +static const struct snmp_table_simple_node ip_RouteTable = SNMP_TABLE_CREATE_SIMPLE(21, ip_RouteTable_columns, ip_RouteTable_get_cell_value, ip_RouteTable_get_next_cell_instance_and_value); +#endif /* LWIP_IPV4 */ + +#if LWIP_ARP && LWIP_IPV4 +static const struct snmp_table_simple_col_def ip_NetToMediaTable_columns[] = { + { 1, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipNetToMediaIfIndex */ + { 2, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_VARIANT_VALUE_TYPE_PTR }, /* ipNetToMediaPhysAddress */ + { 3, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipNetToMediaNetAddress */ + { 4, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 } /* ipNetToMediaType */ +}; + +static const struct snmp_table_simple_node ip_NetToMediaTable = SNMP_TABLE_CREATE_SIMPLE(22, ip_NetToMediaTable_columns, ip_NetToMediaTable_get_cell_value, ip_NetToMediaTable_get_next_cell_instance_and_value); +#endif /* LWIP_ARP && LWIP_IPV4 */ + +#if LWIP_IPV4 +/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ +CREATE_LWIP_SYNC_NODE( 1, ip_Forwarding) +CREATE_LWIP_SYNC_NODE( 2, ip_DefaultTTL) +CREATE_LWIP_SYNC_NODE( 3, ip_InReceives) +CREATE_LWIP_SYNC_NODE( 4, ip_InHdrErrors) +CREATE_LWIP_SYNC_NODE( 5, ip_InAddrErrors) +CREATE_LWIP_SYNC_NODE( 6, ip_ForwDatagrams) +CREATE_LWIP_SYNC_NODE( 7, ip_InUnknownProtos) +CREATE_LWIP_SYNC_NODE( 8, ip_InDiscards) +CREATE_LWIP_SYNC_NODE( 9, ip_InDelivers) +CREATE_LWIP_SYNC_NODE(10, ip_OutRequests) +CREATE_LWIP_SYNC_NODE(11, ip_OutDiscards) +CREATE_LWIP_SYNC_NODE(12, ip_OutNoRoutes) +CREATE_LWIP_SYNC_NODE(13, ip_ReasmTimeout) +CREATE_LWIP_SYNC_NODE(14, ip_ReasmReqds) +CREATE_LWIP_SYNC_NODE(15, ip_ReasmOKs) +CREATE_LWIP_SYNC_NODE(15, ip_ReasmFails) +CREATE_LWIP_SYNC_NODE(17, ip_FragOKs) +CREATE_LWIP_SYNC_NODE(18, ip_FragFails) +CREATE_LWIP_SYNC_NODE(19, ip_FragCreates) +CREATE_LWIP_SYNC_NODE(20, ip_AddrTable) +CREATE_LWIP_SYNC_NODE(21, ip_RouteTable) +#if LWIP_ARP +CREATE_LWIP_SYNC_NODE(22, ip_NetToMediaTable) +#endif /* LWIP_ARP */ +CREATE_LWIP_SYNC_NODE(23, ip_RoutingDiscards) + +static const struct snmp_node *const ip_nodes[] = { + &SYNC_NODE_NAME(ip_Forwarding).node.node, + &SYNC_NODE_NAME(ip_DefaultTTL).node.node, + &SYNC_NODE_NAME(ip_InReceives).node.node, + &SYNC_NODE_NAME(ip_InHdrErrors).node.node, + &SYNC_NODE_NAME(ip_InAddrErrors).node.node, + &SYNC_NODE_NAME(ip_ForwDatagrams).node.node, + &SYNC_NODE_NAME(ip_InUnknownProtos).node.node, + &SYNC_NODE_NAME(ip_InDiscards).node.node, + &SYNC_NODE_NAME(ip_InDelivers).node.node, + &SYNC_NODE_NAME(ip_OutRequests).node.node, + &SYNC_NODE_NAME(ip_OutDiscards).node.node, + &SYNC_NODE_NAME(ip_OutNoRoutes).node.node, + &SYNC_NODE_NAME(ip_ReasmTimeout).node.node, + &SYNC_NODE_NAME(ip_ReasmReqds).node.node, + &SYNC_NODE_NAME(ip_ReasmOKs).node.node, + &SYNC_NODE_NAME(ip_ReasmFails).node.node, + &SYNC_NODE_NAME(ip_FragOKs).node.node, + &SYNC_NODE_NAME(ip_FragFails).node.node, + &SYNC_NODE_NAME(ip_FragCreates).node.node, + &SYNC_NODE_NAME(ip_AddrTable).node.node, + &SYNC_NODE_NAME(ip_RouteTable).node.node, +#if LWIP_ARP + &SYNC_NODE_NAME(ip_NetToMediaTable).node.node, +#endif /* LWIP_ARP */ + &SYNC_NODE_NAME(ip_RoutingDiscards).node.node +}; + +const struct snmp_tree_node snmp_mib2_ip_root = SNMP_CREATE_TREE_NODE(4, ip_nodes); +#endif /* LWIP_IPV4 */ + +/* --- at .1.3.6.1.2.1.3 ----------------------------------------------------- */ + +#if LWIP_ARP && LWIP_IPV4 +/* at node table is a subset of ip_nettomedia table (same rows but less columns) */ +static const struct snmp_table_simple_col_def at_Table_columns[] = { + { 1, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* atIfIndex */ + { 2, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_VARIANT_VALUE_TYPE_PTR }, /* atPhysAddress */ + { 3, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 } /* atNetAddress */ +}; + +static const struct snmp_table_simple_node at_Table = SNMP_TABLE_CREATE_SIMPLE(1, at_Table_columns, ip_NetToMediaTable_get_cell_value, ip_NetToMediaTable_get_next_cell_instance_and_value); + +/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ +CREATE_LWIP_SYNC_NODE(1, at_Table) + +static const struct snmp_node *const at_nodes[] = { + &SYNC_NODE_NAME(at_Table).node.node +}; + +const struct snmp_tree_node snmp_mib2_at_root = SNMP_CREATE_TREE_NODE(3, at_nodes); +#endif /* LWIP_ARP && LWIP_IPV4 */ + +#endif /* LWIP_SNMP && SNMP_LWIP_MIB2 */ diff --git a/middleware/lwip/src/apps/snmp/snmp_mib2_snmp.c b/middleware/lwip/src/apps/snmp/snmp_mib2_snmp.c new file mode 100644 index 0000000..ca22e41 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_mib2_snmp.c @@ -0,0 +1,227 @@ +/** + * @file + * Management Information Base II (RFC1213) SNMP objects and functions. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + * Christiaan Simons + */ + +#include "lwip/snmp.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_mib2.h" +#include "lwip/apps/snmp_scalar.h" + +#if LWIP_SNMP && SNMP_LWIP_MIB2 + +#define MIB2_AUTH_TRAPS_ENABLED 1 +#define MIB2_AUTH_TRAPS_DISABLED 2 + +/* --- snmp .1.3.6.1.2.1.11 ----------------------------------------------------- */ +static s16_t +snmp_get_value(const struct snmp_scalar_array_node_def *node, void *value) +{ + u32_t *uint_ptr = (u32_t *)value; + switch (node->oid) { + case 1: /* snmpInPkts */ + *uint_ptr = snmp_stats.inpkts; + break; + case 2: /* snmpOutPkts */ + *uint_ptr = snmp_stats.outpkts; + break; + case 3: /* snmpInBadVersions */ + *uint_ptr = snmp_stats.inbadversions; + break; + case 4: /* snmpInBadCommunityNames */ + *uint_ptr = snmp_stats.inbadcommunitynames; + break; + case 5: /* snmpInBadCommunityUses */ + *uint_ptr = snmp_stats.inbadcommunityuses; + break; + case 6: /* snmpInASNParseErrs */ + *uint_ptr = snmp_stats.inasnparseerrs; + break; + case 8: /* snmpInTooBigs */ + *uint_ptr = snmp_stats.intoobigs; + break; + case 9: /* snmpInNoSuchNames */ + *uint_ptr = snmp_stats.innosuchnames; + break; + case 10: /* snmpInBadValues */ + *uint_ptr = snmp_stats.inbadvalues; + break; + case 11: /* snmpInReadOnlys */ + *uint_ptr = snmp_stats.inreadonlys; + break; + case 12: /* snmpInGenErrs */ + *uint_ptr = snmp_stats.ingenerrs; + break; + case 13: /* snmpInTotalReqVars */ + *uint_ptr = snmp_stats.intotalreqvars; + break; + case 14: /* snmpInTotalSetVars */ + *uint_ptr = snmp_stats.intotalsetvars; + break; + case 15: /* snmpInGetRequests */ + *uint_ptr = snmp_stats.ingetrequests; + break; + case 16: /* snmpInGetNexts */ + *uint_ptr = snmp_stats.ingetnexts; + break; + case 17: /* snmpInSetRequests */ + *uint_ptr = snmp_stats.insetrequests; + break; + case 18: /* snmpInGetResponses */ + *uint_ptr = snmp_stats.ingetresponses; + break; + case 19: /* snmpInTraps */ + *uint_ptr = snmp_stats.intraps; + break; + case 20: /* snmpOutTooBigs */ + *uint_ptr = snmp_stats.outtoobigs; + break; + case 21: /* snmpOutNoSuchNames */ + *uint_ptr = snmp_stats.outnosuchnames; + break; + case 22: /* snmpOutBadValues */ + *uint_ptr = snmp_stats.outbadvalues; + break; + case 24: /* snmpOutGenErrs */ + *uint_ptr = snmp_stats.outgenerrs; + break; + case 25: /* snmpOutGetRequests */ + *uint_ptr = snmp_stats.outgetrequests; + break; + case 26: /* snmpOutGetNexts */ + *uint_ptr = snmp_stats.outgetnexts; + break; + case 27: /* snmpOutSetRequests */ + *uint_ptr = snmp_stats.outsetrequests; + break; + case 28: /* snmpOutGetResponses */ + *uint_ptr = snmp_stats.outgetresponses; + break; + case 29: /* snmpOutTraps */ + *uint_ptr = snmp_stats.outtraps; + break; + case 30: /* snmpEnableAuthenTraps */ + if (snmp_get_auth_traps_enabled() == SNMP_AUTH_TRAPS_DISABLED) { + *uint_ptr = MIB2_AUTH_TRAPS_DISABLED; + } else { + *uint_ptr = MIB2_AUTH_TRAPS_ENABLED; + } + break; + case 31: /* snmpSilentDrops */ + *uint_ptr = 0; /* not supported */ + break; + case 32: /* snmpProxyDrops */ + *uint_ptr = 0; /* not supported */ + break; + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("snmp_get_value(): unknown id: %"S32_F"\n", node->oid)); + return 0; + } + + return sizeof(*uint_ptr); +} + +static snmp_err_t +snmp_set_test(const struct snmp_scalar_array_node_def *node, u16_t len, void *value) +{ + snmp_err_t ret = SNMP_ERR_WRONGVALUE; + LWIP_UNUSED_ARG(len); + + if (node->oid == 30) { + /* snmpEnableAuthenTraps */ + s32_t *sint_ptr = (s32_t *)value; + + /* we should have writable non-volatile mem here */ + if ((*sint_ptr == MIB2_AUTH_TRAPS_DISABLED) || (*sint_ptr == MIB2_AUTH_TRAPS_ENABLED)) { + ret = SNMP_ERR_NOERROR; + } + } + return ret; +} + +static snmp_err_t +snmp_set_value(const struct snmp_scalar_array_node_def *node, u16_t len, void *value) +{ + LWIP_UNUSED_ARG(len); + + if (node->oid == 30) { + /* snmpEnableAuthenTraps */ + s32_t *sint_ptr = (s32_t *)value; + if (*sint_ptr == MIB2_AUTH_TRAPS_DISABLED) { + snmp_set_auth_traps_enabled(SNMP_AUTH_TRAPS_DISABLED); + } else { + snmp_set_auth_traps_enabled(SNMP_AUTH_TRAPS_ENABLED); + } + } + + return SNMP_ERR_NOERROR; +} + +/* the following nodes access variables in SNMP stack (snmp_stats) from SNMP worker thread -> OK, no sync needed */ +static const struct snmp_scalar_array_node_def snmp_nodes[] = { + { 1, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInPkts */ + { 2, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutPkts */ + { 3, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadVersions */ + { 4, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadCommunityNames */ + { 5, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadCommunityUses */ + { 6, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInASNParseErrs */ + { 8, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTooBigs */ + { 9, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInNoSuchNames */ + {10, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadValues */ + {11, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInReadOnlys */ + {12, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGenErrs */ + {13, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTotalReqVars */ + {14, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTotalSetVars */ + {15, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGetRequests */ + {16, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGetNexts */ + {17, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInSetRequests */ + {18, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGetResponses */ + {19, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTraps */ + {20, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutTooBigs */ + {21, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutNoSuchNames */ + {22, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutBadValues */ + {24, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGenErrs */ + {25, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGetRequests */ + {26, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGetNexts */ + {27, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutSetRequests */ + {28, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGetResponses */ + {29, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutTraps */ + {30, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_WRITE}, /* snmpEnableAuthenTraps */ + {31, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpSilentDrops */ + {32, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY} /* snmpProxyDrops */ +}; + +const struct snmp_scalar_array_node snmp_mib2_snmp_root = SNMP_SCALAR_CREATE_ARRAY_NODE(11, snmp_nodes, snmp_get_value, snmp_set_test, snmp_set_value); + +#endif /* LWIP_SNMP && SNMP_LWIP_MIB2 */ diff --git a/middleware/lwip/src/apps/snmp/snmp_mib2_system.c b/middleware/lwip/src/apps/snmp/snmp_mib2_system.c new file mode 100644 index 0000000..71c1c29 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_mib2_system.c @@ -0,0 +1,376 @@ +/** + * @file + * Management Information Base II (RFC1213) SYSTEM objects and functions. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + * Christiaan Simons + */ + +#include "lwip/snmp.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_mib2.h" +#include "lwip/apps/snmp_table.h" +#include "lwip/apps/snmp_scalar.h" +#include "lwip/sys.h" + +#include + +#if LWIP_SNMP && SNMP_LWIP_MIB2 + +#if SNMP_USE_NETCONN +#define SYNC_NODE_NAME(node_name) node_name ## _synced +#define CREATE_LWIP_SYNC_NODE(oid, node_name) \ + static const struct snmp_threadsync_node node_name ## _synced = SNMP_CREATE_THREAD_SYNC_NODE(oid, &node_name.node, &snmp_mib2_lwip_locks); +#else +#define SYNC_NODE_NAME(node_name) node_name +#define CREATE_LWIP_SYNC_NODE(oid, node_name) +#endif + +/* --- system .1.3.6.1.2.1.1 ----------------------------------------------------- */ + +/** mib-2.system.sysDescr */ +static const u8_t sysdescr_default[] = SNMP_LWIP_MIB2_SYSDESC; +static const u8_t *sysdescr = sysdescr_default; +static const u16_t *sysdescr_len = NULL; /* use strlen for determining len */ + +/** mib-2.system.sysContact */ +static const u8_t syscontact_default[] = SNMP_LWIP_MIB2_SYSCONTACT; +static const u8_t *syscontact = syscontact_default; +static const u16_t *syscontact_len = NULL; /* use strlen for determining len */ +static u8_t *syscontact_wr = NULL; /* if writable, points to the same buffer as syscontact (required for correct constness) */ +static u16_t *syscontact_wr_len = NULL; /* if writable, points to the same buffer as syscontact_len (required for correct constness) */ +static u16_t syscontact_bufsize = 0; /* 0=not writable */ + +/** mib-2.system.sysName */ +static const u8_t sysname_default[] = SNMP_LWIP_MIB2_SYSNAME; +static const u8_t *sysname = sysname_default; +static const u16_t *sysname_len = NULL; /* use strlen for determining len */ +static u8_t *sysname_wr = NULL; /* if writable, points to the same buffer as sysname (required for correct constness) */ +static u16_t *sysname_wr_len = NULL; /* if writable, points to the same buffer as sysname_len (required for correct constness) */ +static u16_t sysname_bufsize = 0; /* 0=not writable */ + +/** mib-2.system.sysLocation */ +static const u8_t syslocation_default[] = SNMP_LWIP_MIB2_SYSLOCATION; +static const u8_t *syslocation = syslocation_default; +static const u16_t *syslocation_len = NULL; /* use strlen for determining len */ +static u8_t *syslocation_wr = NULL; /* if writable, points to the same buffer as syslocation (required for correct constness) */ +static u16_t *syslocation_wr_len = NULL; /* if writable, points to the same buffer as syslocation_len (required for correct constness) */ +static u16_t syslocation_bufsize = 0; /* 0=not writable */ + +/** + * @ingroup snmp_mib2 + * Initializes sysDescr pointers. + * + * @param str if non-NULL then copy str pointer + * @param len points to string length, excluding zero terminator + */ +void +snmp_mib2_set_sysdescr(const u8_t *str, const u16_t *len) +{ + if (str != NULL) { + sysdescr = str; + sysdescr_len = len; + } +} + +/** + * @ingroup snmp_mib2 + * Initializes sysContact pointers + * + * @param ocstr if non-NULL then copy str pointer + * @param ocstrlen points to string length, excluding zero terminator. + * if set to NULL it is assumed that ocstr is NULL-terminated. + * @param bufsize size of the buffer in bytes. + * (this is required because the buffer can be overwritten by snmp-set) + * if ocstrlen is NULL buffer needs space for terminating 0 byte. + * otherwise complete buffer is used for string. + * if bufsize is set to 0, the value is regarded as read-only. + */ +void +snmp_mib2_set_syscontact(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize) +{ + if (ocstr != NULL) { + syscontact = ocstr; + syscontact_wr = ocstr; + syscontact_len = ocstrlen; + syscontact_wr_len = ocstrlen; + syscontact_bufsize = bufsize; + } +} + +/** + * @ingroup snmp_mib2 + * see \ref snmp_mib2_set_syscontact but set pointer to readonly memory + */ +void +snmp_mib2_set_syscontact_readonly(const u8_t *ocstr, const u16_t *ocstrlen) +{ + if (ocstr != NULL) { + syscontact = ocstr; + syscontact_len = ocstrlen; + syscontact_wr = NULL; + syscontact_wr_len = NULL; + syscontact_bufsize = 0; + } +} + + +/** + * @ingroup snmp_mib2 + * Initializes sysName pointers + * + * @param ocstr if non-NULL then copy str pointer + * @param ocstrlen points to string length, excluding zero terminator. + * if set to NULL it is assumed that ocstr is NULL-terminated. + * @param bufsize size of the buffer in bytes. + * (this is required because the buffer can be overwritten by snmp-set) + * if ocstrlen is NULL buffer needs space for terminating 0 byte. + * otherwise complete buffer is used for string. + * if bufsize is set to 0, the value is regarded as read-only. + */ +void +snmp_mib2_set_sysname(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize) +{ + if (ocstr != NULL) { + sysname = ocstr; + sysname_wr = ocstr; + sysname_len = ocstrlen; + sysname_wr_len = ocstrlen; + sysname_bufsize = bufsize; + } +} + +/** + * @ingroup snmp_mib2 + * see \ref snmp_mib2_set_sysname but set pointer to readonly memory + */ +void +snmp_mib2_set_sysname_readonly(const u8_t *ocstr, const u16_t *ocstrlen) +{ + if (ocstr != NULL) { + sysname = ocstr; + sysname_len = ocstrlen; + sysname_wr = NULL; + sysname_wr_len = NULL; + sysname_bufsize = 0; + } +} + +/** + * @ingroup snmp_mib2 + * Initializes sysLocation pointers + * + * @param ocstr if non-NULL then copy str pointer + * @param ocstrlen points to string length, excluding zero terminator. + * if set to NULL it is assumed that ocstr is NULL-terminated. + * @param bufsize size of the buffer in bytes. + * (this is required because the buffer can be overwritten by snmp-set) + * if ocstrlen is NULL buffer needs space for terminating 0 byte. + * otherwise complete buffer is used for string. + * if bufsize is set to 0, the value is regarded as read-only. + */ +void +snmp_mib2_set_syslocation(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize) +{ + if (ocstr != NULL) { + syslocation = ocstr; + syslocation_wr = ocstr; + syslocation_len = ocstrlen; + syslocation_wr_len = ocstrlen; + syslocation_bufsize = bufsize; + } +} + +/** + * @ingroup snmp_mib2 + * see \ref snmp_mib2_set_syslocation but set pointer to readonly memory + */ +void +snmp_mib2_set_syslocation_readonly(const u8_t *ocstr, const u16_t *ocstrlen) +{ + if (ocstr != NULL) { + syslocation = ocstr; + syslocation_len = ocstrlen; + syslocation_wr = NULL; + syslocation_wr_len = NULL; + syslocation_bufsize = 0; + } +} + + +static s16_t +system_get_value(const struct snmp_scalar_array_node_def *node, void *value) +{ + const u8_t *var = NULL; + const s16_t *var_len; + u16_t result; + + switch (node->oid) { + case 1: /* sysDescr */ + var = sysdescr; + var_len = (const s16_t *)sysdescr_len; + break; + case 2: { /* sysObjectID */ + const struct snmp_obj_id *dev_enterprise_oid = snmp_get_device_enterprise_oid(); + MEMCPY(value, dev_enterprise_oid->id, dev_enterprise_oid->len * sizeof(u32_t)); + return dev_enterprise_oid->len * sizeof(u32_t); + } + case 3: /* sysUpTime */ + MIB2_COPY_SYSUPTIME_TO((u32_t *)value); + return sizeof(u32_t); + case 4: /* sysContact */ + var = syscontact; + var_len = (const s16_t *)syscontact_len; + break; + case 5: /* sysName */ + var = sysname; + var_len = (const s16_t *)sysname_len; + break; + case 6: /* sysLocation */ + var = syslocation; + var_len = (const s16_t *)syslocation_len; + break; + case 7: /* sysServices */ + *(s32_t *)value = SNMP_SYSSERVICES; + return sizeof(s32_t); + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("system_get_value(): unknown id: %"S32_F"\n", node->oid)); + return 0; + } + + /* handle string values (OID 1,4,5 and 6) */ + LWIP_ASSERT("", (value != NULL)); + if (var_len == NULL) { + result = (s16_t)strlen((const char *)var); + } else { + result = *var_len; + } + MEMCPY(value, var, result); + return result; +} + +static snmp_err_t +system_set_test(const struct snmp_scalar_array_node_def *node, u16_t len, void *value) +{ + snmp_err_t ret = SNMP_ERR_WRONGVALUE; + const u16_t *var_bufsize = NULL; + const u16_t *var_wr_len; + + LWIP_UNUSED_ARG(value); + + switch (node->oid) { + case 4: /* sysContact */ + var_bufsize = &syscontact_bufsize; + var_wr_len = syscontact_wr_len; + break; + case 5: /* sysName */ + var_bufsize = &sysname_bufsize; + var_wr_len = sysname_wr_len; + break; + case 6: /* sysLocation */ + var_bufsize = &syslocation_bufsize; + var_wr_len = syslocation_wr_len; + break; + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("system_set_test(): unknown id: %"S32_F"\n", node->oid)); + return ret; + } + + /* check if value is writable at all */ + if (*var_bufsize > 0) { + if (var_wr_len == NULL) { + /* we have to take the terminating 0 into account */ + if (len < *var_bufsize) { + ret = SNMP_ERR_NOERROR; + } + } else { + if (len <= *var_bufsize) { + ret = SNMP_ERR_NOERROR; + } + } + } else { + ret = SNMP_ERR_NOTWRITABLE; + } + + return ret; +} + +static snmp_err_t +system_set_value(const struct snmp_scalar_array_node_def *node, u16_t len, void *value) +{ + u8_t *var_wr = NULL; + u16_t *var_wr_len; + + switch (node->oid) { + case 4: /* sysContact */ + var_wr = syscontact_wr; + var_wr_len = syscontact_wr_len; + break; + case 5: /* sysName */ + var_wr = sysname_wr; + var_wr_len = sysname_wr_len; + break; + case 6: /* sysLocation */ + var_wr = syslocation_wr; + var_wr_len = syslocation_wr_len; + break; + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("system_set_value(): unknown id: %"S32_F"\n", node->oid)); + return SNMP_ERR_GENERROR; + } + + /* no need to check size of target buffer, this was already done in set_test method */ + LWIP_ASSERT("", var_wr != NULL); + MEMCPY(var_wr, value, len); + + if (var_wr_len == NULL) { + /* add terminating 0 */ + var_wr[len] = 0; + } else { + *var_wr_len = len; + } + + return SNMP_ERR_NOERROR; +} + +static const struct snmp_scalar_array_node_def system_nodes[] = { + {1, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY}, /* sysDescr */ + {2, SNMP_ASN1_TYPE_OBJECT_ID, SNMP_NODE_INSTANCE_READ_ONLY}, /* sysObjectID */ + {3, SNMP_ASN1_TYPE_TIMETICKS, SNMP_NODE_INSTANCE_READ_ONLY}, /* sysUpTime */ + {4, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_WRITE}, /* sysContact */ + {5, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_WRITE}, /* sysName */ + {6, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_WRITE}, /* sysLocation */ + {7, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY} /* sysServices */ +}; + +const struct snmp_scalar_array_node snmp_mib2_system_node = SNMP_SCALAR_CREATE_ARRAY_NODE(1, system_nodes, system_get_value, system_set_test, system_set_value); + +#endif /* LWIP_SNMP && SNMP_LWIP_MIB2 */ diff --git a/middleware/lwip/src/apps/snmp/snmp_mib2_tcp.c b/middleware/lwip/src/apps/snmp/snmp_mib2_tcp.c new file mode 100644 index 0000000..a23143e --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_mib2_tcp.c @@ -0,0 +1,607 @@ +/** + * @file + * Management Information Base II (RFC1213) TCP objects and functions. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + * Christiaan Simons + */ + +#include "lwip/snmp.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_mib2.h" +#include "lwip/apps/snmp_table.h" +#include "lwip/apps/snmp_scalar.h" +#include "lwip/tcp.h" +#include "lwip/priv/tcp_priv.h" +#include "lwip/stats.h" + +#include + +#if LWIP_SNMP && SNMP_LWIP_MIB2 && LWIP_TCP + +#if SNMP_USE_NETCONN +#define SYNC_NODE_NAME(node_name) node_name ## _synced +#define CREATE_LWIP_SYNC_NODE(oid, node_name) \ + static const struct snmp_threadsync_node node_name ## _synced = SNMP_CREATE_THREAD_SYNC_NODE(oid, &node_name.node, &snmp_mib2_lwip_locks); +#else +#define SYNC_NODE_NAME(node_name) node_name +#define CREATE_LWIP_SYNC_NODE(oid, node_name) +#endif + +/* --- tcp .1.3.6.1.2.1.6 ----------------------------------------------------- */ + +static s16_t +tcp_get_value(struct snmp_node_instance *instance, void *value) +{ + u32_t *uint_ptr = (u32_t *)value; + s32_t *sint_ptr = (s32_t *)value; + + switch (instance->node->oid) { + case 1: /* tcpRtoAlgorithm, vanj(4) */ + *sint_ptr = 4; + return sizeof(*sint_ptr); + case 2: /* tcpRtoMin */ + /* @todo not the actual value, a guess, + needs to be calculated */ + *sint_ptr = 1000; + return sizeof(*sint_ptr); + case 3: /* tcpRtoMax */ + /* @todo not the actual value, a guess, + needs to be calculated */ + *sint_ptr = 60000; + return sizeof(*sint_ptr); + case 4: /* tcpMaxConn */ + *sint_ptr = MEMP_NUM_TCP_PCB; + return sizeof(*sint_ptr); + case 5: /* tcpActiveOpens */ + *uint_ptr = STATS_GET(mib2.tcpactiveopens); + return sizeof(*uint_ptr); + case 6: /* tcpPassiveOpens */ + *uint_ptr = STATS_GET(mib2.tcppassiveopens); + return sizeof(*uint_ptr); + case 7: /* tcpAttemptFails */ + *uint_ptr = STATS_GET(mib2.tcpattemptfails); + return sizeof(*uint_ptr); + case 8: /* tcpEstabResets */ + *uint_ptr = STATS_GET(mib2.tcpestabresets); + return sizeof(*uint_ptr); + case 9: { /* tcpCurrEstab */ + u16_t tcpcurrestab = 0; + struct tcp_pcb *pcb = tcp_active_pcbs; + while (pcb != NULL) { + if ((pcb->state == ESTABLISHED) || + (pcb->state == CLOSE_WAIT)) { + tcpcurrestab++; + } + pcb = pcb->next; + } + *uint_ptr = tcpcurrestab; + } + return sizeof(*uint_ptr); + case 10: /* tcpInSegs */ + *uint_ptr = STATS_GET(mib2.tcpinsegs); + return sizeof(*uint_ptr); + case 11: /* tcpOutSegs */ + *uint_ptr = STATS_GET(mib2.tcpoutsegs); + return sizeof(*uint_ptr); + case 12: /* tcpRetransSegs */ + *uint_ptr = STATS_GET(mib2.tcpretranssegs); + return sizeof(*uint_ptr); + case 14: /* tcpInErrs */ + *uint_ptr = STATS_GET(mib2.tcpinerrs); + return sizeof(*uint_ptr); + case 15: /* tcpOutRsts */ + *uint_ptr = STATS_GET(mib2.tcpoutrsts); + return sizeof(*uint_ptr); +#if LWIP_HAVE_INT64 + case 17: { /* tcpHCInSegs */ + /* use the 32 bit counter for now... */ + u64_t val64 = STATS_GET(mib2.tcpinsegs); + *((u64_t *)value) = val64; + } + return sizeof(u64_t); + case 18: { /* tcpHCOutSegs */ + /* use the 32 bit counter for now... */ + u64_t val64 = STATS_GET(mib2.tcpoutsegs); + *((u64_t *)value) = val64; + } + return sizeof(u64_t); +#endif + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("tcp_get_value(): unknown id: %"S32_F"\n", instance->node->oid)); + break; + } + + return 0; +} + +/* --- tcpConnTable --- */ + +#if LWIP_IPV4 + +/* list of allowed value ranges for incoming OID */ +static const struct snmp_oid_range tcp_ConnTable_oid_ranges[] = { + { 0, 0xff }, /* IP A */ + { 0, 0xff }, /* IP B */ + { 0, 0xff }, /* IP C */ + { 0, 0xff }, /* IP D */ + { 0, 0xffff }, /* Port */ + { 0, 0xff }, /* IP A */ + { 0, 0xff }, /* IP B */ + { 0, 0xff }, /* IP C */ + { 0, 0xff }, /* IP D */ + { 0, 0xffff } /* Port */ +}; + +static snmp_err_t +tcp_ConnTable_get_cell_value_core(struct tcp_pcb *pcb, const u32_t *column, union snmp_variant_value *value, u32_t *value_len) +{ + LWIP_UNUSED_ARG(value_len); + + /* value */ + switch (*column) { + case 1: /* tcpConnState */ + value->u32 = pcb->state + 1; + break; + case 2: /* tcpConnLocalAddress */ + value->u32 = ip_2_ip4(&pcb->local_ip)->addr; + break; + case 3: /* tcpConnLocalPort */ + value->u32 = pcb->local_port; + break; + case 4: /* tcpConnRemAddress */ + if (pcb->state == LISTEN) { + value->u32 = IP4_ADDR_ANY4->addr; + } else { + value->u32 = ip_2_ip4(&pcb->remote_ip)->addr; + } + break; + case 5: /* tcpConnRemPort */ + if (pcb->state == LISTEN) { + value->u32 = 0; + } else { + value->u32 = pcb->remote_port; + } + break; + default: + LWIP_ASSERT("invalid id", 0); + return SNMP_ERR_NOSUCHINSTANCE; + } + + return SNMP_ERR_NOERROR; +} + +static snmp_err_t +tcp_ConnTable_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len) +{ + u8_t i; + ip4_addr_t local_ip; + ip4_addr_t remote_ip; + u16_t local_port; + u16_t remote_port; + struct tcp_pcb *pcb; + + /* check if incoming OID length and if values are in plausible range */ + if (!snmp_oid_in_range(row_oid, row_oid_len, tcp_ConnTable_oid_ranges, LWIP_ARRAYSIZE(tcp_ConnTable_oid_ranges))) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* get IPs and ports from incoming OID */ + snmp_oid_to_ip4(&row_oid[0], &local_ip); /* we know it succeeds because of oid_in_range check above */ + local_port = (u16_t)row_oid[4]; + snmp_oid_to_ip4(&row_oid[5], &remote_ip); /* we know it succeeds because of oid_in_range check above */ + remote_port = (u16_t)row_oid[9]; + + /* find tcp_pcb with requested ips and ports */ + for (i = 0; i < LWIP_ARRAYSIZE(tcp_pcb_lists); i++) { + pcb = *tcp_pcb_lists[i]; + + while (pcb != NULL) { + /* do local IP and local port match? */ + if (IP_IS_V4_VAL(pcb->local_ip) && + ip4_addr_eq(&local_ip, ip_2_ip4(&pcb->local_ip)) && (local_port == pcb->local_port)) { + + /* PCBs in state LISTEN are not connected and have no remote_ip or remote_port */ + if (pcb->state == LISTEN) { + if (ip4_addr_eq(&remote_ip, IP4_ADDR_ANY4) && (remote_port == 0)) { + /* fill in object properties */ + return tcp_ConnTable_get_cell_value_core(pcb, column, value, value_len); + } + } else { + if (IP_IS_V4_VAL(pcb->remote_ip) && + ip4_addr_eq(&remote_ip, ip_2_ip4(&pcb->remote_ip)) && (remote_port == pcb->remote_port)) { + /* fill in object properties */ + return tcp_ConnTable_get_cell_value_core(pcb, column, value, value_len); + } + } + } + + pcb = pcb->next; + } + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static snmp_err_t +tcp_ConnTable_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len) +{ + u8_t i; + struct tcp_pcb *pcb; + struct snmp_next_oid_state state; + u32_t result_temp[LWIP_ARRAYSIZE(tcp_ConnTable_oid_ranges)]; + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(tcp_ConnTable_oid_ranges)); + + /* iterate over all possible OIDs to find the next one */ + for (i = 0; i < LWIP_ARRAYSIZE(tcp_pcb_lists); i++) { + pcb = *tcp_pcb_lists[i]; + while (pcb != NULL) { + u32_t test_oid[LWIP_ARRAYSIZE(tcp_ConnTable_oid_ranges)]; + + if (IP_IS_V4_VAL(pcb->local_ip)) { + snmp_ip4_to_oid(ip_2_ip4(&pcb->local_ip), &test_oid[0]); + test_oid[4] = pcb->local_port; + + /* PCBs in state LISTEN are not connected and have no remote_ip or remote_port */ + if (pcb->state == LISTEN) { + snmp_ip4_to_oid(IP4_ADDR_ANY4, &test_oid[5]); + test_oid[9] = 0; + } else { + if (IP_IS_V6_VAL(pcb->remote_ip)) { /* should never happen */ + continue; + } + snmp_ip4_to_oid(ip_2_ip4(&pcb->remote_ip), &test_oid[5]); + test_oid[9] = pcb->remote_port; + } + + /* check generated OID: is it a candidate for the next one? */ + snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(tcp_ConnTable_oid_ranges), pcb); + } + + pcb = pcb->next; + } + } + + /* did we find a next one? */ + if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { + snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); + /* fill in object properties */ + return tcp_ConnTable_get_cell_value_core((struct tcp_pcb *)state.reference, column, value, value_len); + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +#endif /* LWIP_IPV4 */ + +/* --- tcpConnectionTable --- */ + +static snmp_err_t +tcp_ConnectionTable_get_cell_value_core(const u32_t *column, struct tcp_pcb *pcb, union snmp_variant_value *value) +{ + /* all items except tcpConnectionState and tcpConnectionProcess are declared as not-accessible */ + switch (*column) { + case 7: /* tcpConnectionState */ + value->u32 = pcb->state + 1; + break; + case 8: /* tcpConnectionProcess */ + value->u32 = 0; /* not supported */ + break; + default: + return SNMP_ERR_NOSUCHINSTANCE; + } + + return SNMP_ERR_NOERROR; +} + +static snmp_err_t +tcp_ConnectionTable_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len) +{ + ip_addr_t local_ip, remote_ip; + u16_t local_port, remote_port; + struct tcp_pcb *pcb; + u8_t idx = 0; + u8_t i; + struct tcp_pcb **const tcp_pcb_nonlisten_lists[] = {&tcp_bound_pcbs, &tcp_active_pcbs, &tcp_tw_pcbs}; + + LWIP_UNUSED_ARG(value_len); + + /* tcpConnectionLocalAddressType + tcpConnectionLocalAddress + tcpConnectionLocalPort */ + idx += snmp_oid_to_ip_port(&row_oid[idx], row_oid_len - idx, &local_ip, &local_port); + if (idx == 0) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* tcpConnectionRemAddressType + tcpConnectionRemAddress + tcpConnectionRemPort */ + idx += snmp_oid_to_ip_port(&row_oid[idx], row_oid_len - idx, &remote_ip, &remote_port); + if (idx == 0) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* find tcp_pcb with requested ip and port*/ + for (i = 0; i < LWIP_ARRAYSIZE(tcp_pcb_nonlisten_lists); i++) { + pcb = *tcp_pcb_nonlisten_lists[i]; + + while (pcb != NULL) { + if (ip_addr_eq(&local_ip, &pcb->local_ip) && + (local_port == pcb->local_port) && + ip_addr_eq(&remote_ip, &pcb->remote_ip) && + (remote_port == pcb->remote_port)) { + /* fill in object properties */ + return tcp_ConnectionTable_get_cell_value_core(column, pcb, value); + } + pcb = pcb->next; + } + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static snmp_err_t +tcp_ConnectionTable_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len) +{ + struct tcp_pcb *pcb; + struct snmp_next_oid_state state; + /* 1x tcpConnectionLocalAddressType + 1x OID len + 16x tcpConnectionLocalAddress + 1x tcpConnectionLocalPort + * 1x tcpConnectionRemAddressType + 1x OID len + 16x tcpConnectionRemAddress + 1x tcpConnectionRemPort */ + u32_t result_temp[38]; + u8_t i; + struct tcp_pcb **const tcp_pcb_nonlisten_lists[] = {&tcp_bound_pcbs, &tcp_active_pcbs, &tcp_tw_pcbs}; + + LWIP_UNUSED_ARG(value_len); + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(result_temp)); + + /* iterate over all possible OIDs to find the next one */ + for (i = 0; i < LWIP_ARRAYSIZE(tcp_pcb_nonlisten_lists); i++) { + pcb = *tcp_pcb_nonlisten_lists[i]; + + while (pcb != NULL) { + u8_t idx = 0; + u32_t test_oid[LWIP_ARRAYSIZE(result_temp)]; + + /* tcpConnectionLocalAddressType + tcpConnectionLocalAddress + tcpConnectionLocalPort */ + idx += snmp_ip_port_to_oid(&pcb->local_ip, pcb->local_port, &test_oid[idx]); + + /* tcpConnectionRemAddressType + tcpConnectionRemAddress + tcpConnectionRemPort */ + idx += snmp_ip_port_to_oid(&pcb->remote_ip, pcb->remote_port, &test_oid[idx]); + + /* check generated OID: is it a candidate for the next one? */ + snmp_next_oid_check(&state, test_oid, idx, pcb); + + pcb = pcb->next; + } + } + + /* did we find a next one? */ + if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { + snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); + /* fill in object properties */ + return tcp_ConnectionTable_get_cell_value_core(column, (struct tcp_pcb *)state.reference, value); + } else { + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; + } +} + +/* --- tcpListenerTable --- */ + +static snmp_err_t +tcp_ListenerTable_get_cell_value_core(const u32_t *column, union snmp_variant_value *value) +{ + /* all items except tcpListenerProcess are declared as not-accessible */ + switch (*column) { + case 4: /* tcpListenerProcess */ + value->u32 = 0; /* not supported */ + break; + default: + return SNMP_ERR_NOSUCHINSTANCE; + } + + return SNMP_ERR_NOERROR; +} + +static snmp_err_t +tcp_ListenerTable_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len) +{ + ip_addr_t local_ip; + u16_t local_port; + struct tcp_pcb_listen *pcb; + u8_t idx = 0; + + LWIP_UNUSED_ARG(value_len); + + /* tcpListenerLocalAddressType + tcpListenerLocalAddress + tcpListenerLocalPort */ + idx += snmp_oid_to_ip_port(&row_oid[idx], row_oid_len - idx, &local_ip, &local_port); + if (idx == 0) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* find tcp_pcb with requested ip and port*/ + pcb = tcp_listen_pcbs.listen_pcbs; + while (pcb != NULL) { + if (ip_addr_eq(&local_ip, &pcb->local_ip) && + (local_port == pcb->local_port)) { + /* fill in object properties */ + return tcp_ListenerTable_get_cell_value_core(column, value); + } + pcb = pcb->next; + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static snmp_err_t +tcp_ListenerTable_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len) +{ + struct tcp_pcb_listen *pcb; + struct snmp_next_oid_state state; + /* 1x tcpListenerLocalAddressType + 1x OID len + 16x tcpListenerLocalAddress + 1x tcpListenerLocalPort */ + u32_t result_temp[19]; + + LWIP_UNUSED_ARG(value_len); + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(result_temp)); + + /* iterate over all possible OIDs to find the next one */ + pcb = tcp_listen_pcbs.listen_pcbs; + while (pcb != NULL) { + u8_t idx = 0; + u32_t test_oid[LWIP_ARRAYSIZE(result_temp)]; + + /* tcpListenerLocalAddressType + tcpListenerLocalAddress + tcpListenerLocalPort */ + idx += snmp_ip_port_to_oid(&pcb->local_ip, pcb->local_port, &test_oid[idx]); + + /* check generated OID: is it a candidate for the next one? */ + snmp_next_oid_check(&state, test_oid, idx, NULL); + + pcb = pcb->next; + } + + /* did we find a next one? */ + if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { + snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); + /* fill in object properties */ + return tcp_ListenerTable_get_cell_value_core(column, value); + } else { + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; + } +} + +static const struct snmp_scalar_node tcp_RtoAlgorithm = SNMP_SCALAR_CREATE_NODE_READONLY(1, SNMP_ASN1_TYPE_INTEGER, tcp_get_value); +static const struct snmp_scalar_node tcp_RtoMin = SNMP_SCALAR_CREATE_NODE_READONLY(2, SNMP_ASN1_TYPE_INTEGER, tcp_get_value); +static const struct snmp_scalar_node tcp_RtoMax = SNMP_SCALAR_CREATE_NODE_READONLY(3, SNMP_ASN1_TYPE_INTEGER, tcp_get_value); +static const struct snmp_scalar_node tcp_MaxConn = SNMP_SCALAR_CREATE_NODE_READONLY(4, SNMP_ASN1_TYPE_INTEGER, tcp_get_value); +static const struct snmp_scalar_node tcp_ActiveOpens = SNMP_SCALAR_CREATE_NODE_READONLY(5, SNMP_ASN1_TYPE_COUNTER, tcp_get_value); +static const struct snmp_scalar_node tcp_PassiveOpens = SNMP_SCALAR_CREATE_NODE_READONLY(6, SNMP_ASN1_TYPE_COUNTER, tcp_get_value); +static const struct snmp_scalar_node tcp_AttemptFails = SNMP_SCALAR_CREATE_NODE_READONLY(7, SNMP_ASN1_TYPE_COUNTER, tcp_get_value); +static const struct snmp_scalar_node tcp_EstabResets = SNMP_SCALAR_CREATE_NODE_READONLY(8, SNMP_ASN1_TYPE_COUNTER, tcp_get_value); +static const struct snmp_scalar_node tcp_CurrEstab = SNMP_SCALAR_CREATE_NODE_READONLY(9, SNMP_ASN1_TYPE_GAUGE, tcp_get_value); +static const struct snmp_scalar_node tcp_InSegs = SNMP_SCALAR_CREATE_NODE_READONLY(10, SNMP_ASN1_TYPE_COUNTER, tcp_get_value); +static const struct snmp_scalar_node tcp_OutSegs = SNMP_SCALAR_CREATE_NODE_READONLY(11, SNMP_ASN1_TYPE_COUNTER, tcp_get_value); +static const struct snmp_scalar_node tcp_RetransSegs = SNMP_SCALAR_CREATE_NODE_READONLY(12, SNMP_ASN1_TYPE_COUNTER, tcp_get_value); +static const struct snmp_scalar_node tcp_InErrs = SNMP_SCALAR_CREATE_NODE_READONLY(14, SNMP_ASN1_TYPE_COUNTER, tcp_get_value); +static const struct snmp_scalar_node tcp_OutRsts = SNMP_SCALAR_CREATE_NODE_READONLY(15, SNMP_ASN1_TYPE_COUNTER, tcp_get_value); +#if LWIP_HAVE_INT64 +static const struct snmp_scalar_node tcp_HCInSegs = SNMP_SCALAR_CREATE_NODE_READONLY(17, SNMP_ASN1_TYPE_COUNTER64, tcp_get_value); +static const struct snmp_scalar_node tcp_HCOutSegs = SNMP_SCALAR_CREATE_NODE_READONLY(18, SNMP_ASN1_TYPE_COUNTER64, tcp_get_value); +#endif + +#if LWIP_IPV4 +static const struct snmp_table_simple_col_def tcp_ConnTable_columns[] = { + { 1, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* tcpConnState */ + { 2, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* tcpConnLocalAddress */ + { 3, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* tcpConnLocalPort */ + { 4, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* tcpConnRemAddress */ + { 5, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 } /* tcpConnRemPort */ +}; + +static const struct snmp_table_simple_node tcp_ConnTable = SNMP_TABLE_CREATE_SIMPLE(13, tcp_ConnTable_columns, tcp_ConnTable_get_cell_value, tcp_ConnTable_get_next_cell_instance_and_value); +#endif /* LWIP_IPV4 */ + +static const struct snmp_table_simple_col_def tcp_ConnectionTable_columns[] = { + /* all items except tcpConnectionState and tcpConnectionProcess are declared as not-accessible */ + { 7, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* tcpConnectionState */ + { 8, SNMP_ASN1_TYPE_UNSIGNED32, SNMP_VARIANT_VALUE_TYPE_U32 } /* tcpConnectionProcess */ +}; + +static const struct snmp_table_simple_node tcp_ConnectionTable = SNMP_TABLE_CREATE_SIMPLE(19, tcp_ConnectionTable_columns, tcp_ConnectionTable_get_cell_value, tcp_ConnectionTable_get_next_cell_instance_and_value); + + +static const struct snmp_table_simple_col_def tcp_ListenerTable_columns[] = { + /* all items except tcpListenerProcess are declared as not-accessible */ + { 4, SNMP_ASN1_TYPE_UNSIGNED32, SNMP_VARIANT_VALUE_TYPE_U32 } /* tcpListenerProcess */ +}; + +static const struct snmp_table_simple_node tcp_ListenerTable = SNMP_TABLE_CREATE_SIMPLE(20, tcp_ListenerTable_columns, tcp_ListenerTable_get_cell_value, tcp_ListenerTable_get_next_cell_instance_and_value); + +/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ +CREATE_LWIP_SYNC_NODE( 1, tcp_RtoAlgorithm) +CREATE_LWIP_SYNC_NODE( 2, tcp_RtoMin) +CREATE_LWIP_SYNC_NODE( 3, tcp_RtoMax) +CREATE_LWIP_SYNC_NODE( 4, tcp_MaxConn) +CREATE_LWIP_SYNC_NODE( 5, tcp_ActiveOpens) +CREATE_LWIP_SYNC_NODE( 6, tcp_PassiveOpens) +CREATE_LWIP_SYNC_NODE( 7, tcp_AttemptFails) +CREATE_LWIP_SYNC_NODE( 8, tcp_EstabResets) +CREATE_LWIP_SYNC_NODE( 9, tcp_CurrEstab) +CREATE_LWIP_SYNC_NODE(10, tcp_InSegs) +CREATE_LWIP_SYNC_NODE(11, tcp_OutSegs) +CREATE_LWIP_SYNC_NODE(12, tcp_RetransSegs) +#if LWIP_IPV4 +CREATE_LWIP_SYNC_NODE(13, tcp_ConnTable) +#endif /* LWIP_IPV4 */ +CREATE_LWIP_SYNC_NODE(14, tcp_InErrs) +CREATE_LWIP_SYNC_NODE(15, tcp_OutRsts) +#if LWIP_HAVE_INT64 +CREATE_LWIP_SYNC_NODE(17, tcp_HCInSegs) +CREATE_LWIP_SYNC_NODE(18, tcp_HCOutSegs) +#endif +CREATE_LWIP_SYNC_NODE(19, tcp_ConnectionTable) +CREATE_LWIP_SYNC_NODE(20, tcp_ListenerTable) + +static const struct snmp_node *const tcp_nodes[] = { + &SYNC_NODE_NAME(tcp_RtoAlgorithm).node.node, + &SYNC_NODE_NAME(tcp_RtoMin).node.node, + &SYNC_NODE_NAME(tcp_RtoMax).node.node, + &SYNC_NODE_NAME(tcp_MaxConn).node.node, + &SYNC_NODE_NAME(tcp_ActiveOpens).node.node, + &SYNC_NODE_NAME(tcp_PassiveOpens).node.node, + &SYNC_NODE_NAME(tcp_AttemptFails).node.node, + &SYNC_NODE_NAME(tcp_EstabResets).node.node, + &SYNC_NODE_NAME(tcp_CurrEstab).node.node, + &SYNC_NODE_NAME(tcp_InSegs).node.node, + &SYNC_NODE_NAME(tcp_OutSegs).node.node, + &SYNC_NODE_NAME(tcp_RetransSegs).node.node, +#if LWIP_IPV4 + &SYNC_NODE_NAME(tcp_ConnTable).node.node, +#endif /* LWIP_IPV4 */ + &SYNC_NODE_NAME(tcp_InErrs).node.node, + &SYNC_NODE_NAME(tcp_OutRsts).node.node, + &SYNC_NODE_NAME(tcp_HCInSegs).node.node, +#if LWIP_HAVE_INT64 + &SYNC_NODE_NAME(tcp_HCOutSegs).node.node, + &SYNC_NODE_NAME(tcp_ConnectionTable).node.node, +#endif + &SYNC_NODE_NAME(tcp_ListenerTable).node.node +}; + +const struct snmp_tree_node snmp_mib2_tcp_root = SNMP_CREATE_TREE_NODE(6, tcp_nodes); +#endif /* LWIP_SNMP && SNMP_LWIP_MIB2 && LWIP_TCP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_mib2_udp.c b/middleware/lwip/src/apps/snmp/snmp_mib2_udp.c new file mode 100644 index 0000000..2b57277 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_mib2_udp.c @@ -0,0 +1,372 @@ +/** + * @file + * Management Information Base II (RFC1213) UDP objects and functions. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + * Christiaan Simons + */ + +#include "lwip/snmp.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_mib2.h" +#include "lwip/apps/snmp_table.h" +#include "lwip/apps/snmp_scalar.h" +#include "lwip/udp.h" +#include "lwip/stats.h" + +#include + +#if LWIP_SNMP && SNMP_LWIP_MIB2 && LWIP_UDP + +#if SNMP_USE_NETCONN +#define SYNC_NODE_NAME(node_name) node_name ## _synced +#define CREATE_LWIP_SYNC_NODE(oid, node_name) \ + static const struct snmp_threadsync_node node_name ## _synced = SNMP_CREATE_THREAD_SYNC_NODE(oid, &node_name.node, &snmp_mib2_lwip_locks); +#else +#define SYNC_NODE_NAME(node_name) node_name +#define CREATE_LWIP_SYNC_NODE(oid, node_name) +#endif + +/* --- udp .1.3.6.1.2.1.7 ----------------------------------------------------- */ + +static s16_t +udp_get_value(struct snmp_node_instance *instance, void *value) +{ + u32_t *uint_ptr = (u32_t *)value; + + switch (instance->node->oid) { + case 1: /* udpInDatagrams */ + *uint_ptr = STATS_GET(mib2.udpindatagrams); + return sizeof(*uint_ptr); + case 2: /* udpNoPorts */ + *uint_ptr = STATS_GET(mib2.udpnoports); + return sizeof(*uint_ptr); + case 3: /* udpInErrors */ + *uint_ptr = STATS_GET(mib2.udpinerrors); + return sizeof(*uint_ptr); + case 4: /* udpOutDatagrams */ + *uint_ptr = STATS_GET(mib2.udpoutdatagrams); + return sizeof(*uint_ptr); +#if LWIP_HAVE_INT64 + case 8: { /* udpHCInDatagrams */ + /* use the 32 bit counter for now... */ + u64_t val64 = STATS_GET(mib2.udpindatagrams); + *((u64_t *)value) = val64; + } + return sizeof(u64_t); + case 9: { /* udpHCOutDatagrams */ + /* use the 32 bit counter for now... */ + u64_t val64 = STATS_GET(mib2.udpoutdatagrams); + *((u64_t *)value) = val64; + } + return sizeof(u64_t); +#endif + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("udp_get_value(): unknown id: %"S32_F"\n", instance->node->oid)); + break; + } + + return 0; +} + +/* --- udpEndpointTable --- */ + +static snmp_err_t +udp_endpointTable_get_cell_value_core(const u32_t *column, union snmp_variant_value *value) +{ + /* all items except udpEndpointProcess are declared as not-accessible */ + switch (*column) { + case 8: /* udpEndpointProcess */ + value->u32 = 0; /* not supported */ + break; + default: + return SNMP_ERR_NOSUCHINSTANCE; + } + + return SNMP_ERR_NOERROR; +} + +static snmp_err_t +udp_endpointTable_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len) +{ + ip_addr_t local_ip, remote_ip; + u16_t local_port, remote_port; + struct udp_pcb *pcb; + u8_t idx = 0; + + LWIP_UNUSED_ARG(value_len); + + /* udpEndpointLocalAddressType + udpEndpointLocalAddress + udpEndpointLocalPort */ + idx += snmp_oid_to_ip_port(&row_oid[idx], row_oid_len - idx, &local_ip, &local_port); + if (idx == 0) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* udpEndpointRemoteAddressType + udpEndpointRemoteAddress + udpEndpointRemotePort */ + idx += snmp_oid_to_ip_port(&row_oid[idx], row_oid_len - idx, &remote_ip, &remote_port); + if (idx == 0) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* udpEndpointInstance */ + if (row_oid_len < (idx + 1)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + if (row_oid[idx] != 0) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* find udp_pcb with requested ip and port*/ + pcb = udp_pcbs; + while (pcb != NULL) { + if (ip_addr_eq(&local_ip, &pcb->local_ip) && + (local_port == pcb->local_port) && + ip_addr_eq(&remote_ip, &pcb->remote_ip) && + (remote_port == pcb->remote_port)) { + /* fill in object properties */ + return udp_endpointTable_get_cell_value_core(column, value); + } + pcb = pcb->next; + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static snmp_err_t +udp_endpointTable_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len) +{ + struct udp_pcb *pcb; + struct snmp_next_oid_state state; + /* 1x udpEndpointLocalAddressType + 1x OID len + 16x udpEndpointLocalAddress + 1x udpEndpointLocalPort + + * 1x udpEndpointRemoteAddressType + 1x OID len + 16x udpEndpointRemoteAddress + 1x udpEndpointRemotePort + + * 1x udpEndpointInstance = 39 + */ + u32_t result_temp[39]; + + LWIP_UNUSED_ARG(value_len); + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(result_temp)); + + /* iterate over all possible OIDs to find the next one */ + pcb = udp_pcbs; + while (pcb != NULL) { + u32_t test_oid[LWIP_ARRAYSIZE(result_temp)]; + u8_t idx = 0; + + /* udpEndpointLocalAddressType + udpEndpointLocalAddress + udpEndpointLocalPort */ + idx += snmp_ip_port_to_oid(&pcb->local_ip, pcb->local_port, &test_oid[idx]); + + /* udpEndpointRemoteAddressType + udpEndpointRemoteAddress + udpEndpointRemotePort */ + idx += snmp_ip_port_to_oid(&pcb->remote_ip, pcb->remote_port, &test_oid[idx]); + + test_oid[idx] = 0; /* udpEndpointInstance */ + idx++; + + /* check generated OID: is it a candidate for the next one? */ + snmp_next_oid_check(&state, test_oid, idx, NULL); + + pcb = pcb->next; + } + + /* did we find a next one? */ + if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { + snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); + /* fill in object properties */ + return udp_endpointTable_get_cell_value_core(column, value); + } else { + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; + } +} + +/* --- udpTable --- */ + +#if LWIP_IPV4 + +/* list of allowed value ranges for incoming OID */ +static const struct snmp_oid_range udp_Table_oid_ranges[] = { + { 0, 0xff }, /* IP A */ + { 0, 0xff }, /* IP B */ + { 0, 0xff }, /* IP C */ + { 0, 0xff }, /* IP D */ + { 1, 0xffff } /* Port */ +}; + +static snmp_err_t +udp_Table_get_cell_value_core(struct udp_pcb *pcb, const u32_t *column, union snmp_variant_value *value, u32_t *value_len) +{ + LWIP_UNUSED_ARG(value_len); + + switch (*column) { + case 1: /* udpLocalAddress */ + /* set reference to PCB local IP and return a generic node that copies IP4 addresses */ + value->u32 = ip_2_ip4(&pcb->local_ip)->addr; + break; + case 2: /* udpLocalPort */ + /* set reference to PCB local port and return a generic node that copies u16_t values */ + value->u32 = pcb->local_port; + break; + default: + return SNMP_ERR_NOSUCHINSTANCE; + } + + return SNMP_ERR_NOERROR; +} + +static snmp_err_t +udp_Table_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len) +{ + ip4_addr_t ip; + u16_t port; + struct udp_pcb *pcb; + + /* check if incoming OID length and if values are in plausible range */ + if (!snmp_oid_in_range(row_oid, row_oid_len, udp_Table_oid_ranges, LWIP_ARRAYSIZE(udp_Table_oid_ranges))) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* get IP and port from incoming OID */ + snmp_oid_to_ip4(&row_oid[0], &ip); /* we know it succeeds because of oid_in_range check above */ + port = (u16_t)row_oid[4]; + + /* find udp_pcb with requested ip and port*/ + pcb = udp_pcbs; + while (pcb != NULL) { + if (IP_IS_V4_VAL(pcb->local_ip)) { + if (ip4_addr_eq(&ip, ip_2_ip4(&pcb->local_ip)) && (port == pcb->local_port)) { + /* fill in object properties */ + return udp_Table_get_cell_value_core(pcb, column, value, value_len); + } + } + pcb = pcb->next; + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static snmp_err_t +udp_Table_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len) +{ + struct udp_pcb *pcb; + struct snmp_next_oid_state state; + u32_t result_temp[LWIP_ARRAYSIZE(udp_Table_oid_ranges)]; + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(udp_Table_oid_ranges)); + + /* iterate over all possible OIDs to find the next one */ + pcb = udp_pcbs; + while (pcb != NULL) { + u32_t test_oid[LWIP_ARRAYSIZE(udp_Table_oid_ranges)]; + + if (IP_IS_V4_VAL(pcb->local_ip)) { + snmp_ip4_to_oid(ip_2_ip4(&pcb->local_ip), &test_oid[0]); + test_oid[4] = pcb->local_port; + + /* check generated OID: is it a candidate for the next one? */ + snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(udp_Table_oid_ranges), pcb); + } + + pcb = pcb->next; + } + + /* did we find a next one? */ + if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { + snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); + /* fill in object properties */ + return udp_Table_get_cell_value_core((struct udp_pcb *)state.reference, column, value, value_len); + } else { + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; + } +} + +#endif /* LWIP_IPV4 */ + +static const struct snmp_scalar_node udp_inDatagrams = SNMP_SCALAR_CREATE_NODE_READONLY(1, SNMP_ASN1_TYPE_COUNTER, udp_get_value); +static const struct snmp_scalar_node udp_noPorts = SNMP_SCALAR_CREATE_NODE_READONLY(2, SNMP_ASN1_TYPE_COUNTER, udp_get_value); +static const struct snmp_scalar_node udp_inErrors = SNMP_SCALAR_CREATE_NODE_READONLY(3, SNMP_ASN1_TYPE_COUNTER, udp_get_value); +static const struct snmp_scalar_node udp_outDatagrams = SNMP_SCALAR_CREATE_NODE_READONLY(4, SNMP_ASN1_TYPE_COUNTER, udp_get_value); +#if LWIP_HAVE_INT64 +static const struct snmp_scalar_node udp_HCInDatagrams = SNMP_SCALAR_CREATE_NODE_READONLY(8, SNMP_ASN1_TYPE_COUNTER64, udp_get_value); +static const struct snmp_scalar_node udp_HCOutDatagrams = SNMP_SCALAR_CREATE_NODE_READONLY(9, SNMP_ASN1_TYPE_COUNTER64, udp_get_value); +#endif + +#if LWIP_IPV4 +static const struct snmp_table_simple_col_def udp_Table_columns[] = { + { 1, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* udpLocalAddress */ + { 2, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 } /* udpLocalPort */ +}; +static const struct snmp_table_simple_node udp_Table = SNMP_TABLE_CREATE_SIMPLE(5, udp_Table_columns, udp_Table_get_cell_value, udp_Table_get_next_cell_instance_and_value); +#endif /* LWIP_IPV4 */ + +static const struct snmp_table_simple_col_def udp_endpointTable_columns[] = { + /* all items except udpEndpointProcess are declared as not-accessible */ + { 8, SNMP_ASN1_TYPE_UNSIGNED32, SNMP_VARIANT_VALUE_TYPE_U32 } /* udpEndpointProcess */ +}; + +static const struct snmp_table_simple_node udp_endpointTable = SNMP_TABLE_CREATE_SIMPLE(7, udp_endpointTable_columns, udp_endpointTable_get_cell_value, udp_endpointTable_get_next_cell_instance_and_value); + +/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ +CREATE_LWIP_SYNC_NODE(1, udp_inDatagrams) +CREATE_LWIP_SYNC_NODE(2, udp_noPorts) +CREATE_LWIP_SYNC_NODE(3, udp_inErrors) +CREATE_LWIP_SYNC_NODE(4, udp_outDatagrams) +#if LWIP_IPV4 +CREATE_LWIP_SYNC_NODE(5, udp_Table) +#endif /* LWIP_IPV4 */ +CREATE_LWIP_SYNC_NODE(7, udp_endpointTable) +#if LWIP_HAVE_INT64 +CREATE_LWIP_SYNC_NODE(8, udp_HCInDatagrams) +CREATE_LWIP_SYNC_NODE(9, udp_HCOutDatagrams) +#endif + +static const struct snmp_node *const udp_nodes[] = { + &SYNC_NODE_NAME(udp_inDatagrams).node.node, + &SYNC_NODE_NAME(udp_noPorts).node.node, + &SYNC_NODE_NAME(udp_inErrors).node.node, + &SYNC_NODE_NAME(udp_outDatagrams).node.node, +#if LWIP_IPV4 + &SYNC_NODE_NAME(udp_Table).node.node, +#endif /* LWIP_IPV4 */ + &SYNC_NODE_NAME(udp_endpointTable).node.node +#if LWIP_HAVE_INT64 + , + &SYNC_NODE_NAME(udp_HCInDatagrams).node.node, + &SYNC_NODE_NAME(udp_HCOutDatagrams).node.node +#endif +}; + +const struct snmp_tree_node snmp_mib2_udp_root = SNMP_CREATE_TREE_NODE(7, udp_nodes); +#endif /* LWIP_SNMP && SNMP_LWIP_MIB2 && LWIP_UDP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_msg.c b/middleware/lwip/src/apps/snmp/snmp_msg.c new file mode 100644 index 0000000..3d04094 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_msg.c @@ -0,0 +1,1979 @@ +/** + * @file + * SNMP message processing (RFC1157). + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * Copyright (c) 2016 Elias Oenal. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Christiaan Simons + * Martin Hentschel + * Elias Oenal + */ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include "snmp_msg.h" +#include "snmp_asn1.h" +#include "snmp_core_priv.h" +#include "lwip/ip_addr.h" +#include "lwip/stats.h" + +#if LWIP_SNMP_V3 +#include "lwip/apps/snmpv3.h" +#include "snmpv3_priv.h" +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif +#endif + +#include + +#define SNMP_V3_AUTH_FLAG 0x01 +#define SNMP_V3_PRIV_FLAG 0x02 + +/* Security levels */ +#define SNMP_V3_NOAUTHNOPRIV 0x00 +#define SNMP_V3_AUTHNOPRIV SNMP_V3_AUTH_FLAG +#define SNMP_V3_AUTHPRIV (SNMP_V3_AUTH_FLAG | SNMP_V3_PRIV_FLAG) + +/* public (non-static) constants */ +/** SNMP community string */ +const char *snmp_community = SNMP_COMMUNITY; +/** SNMP community string for write access */ +const char *snmp_community_write = SNMP_COMMUNITY_WRITE; +/** SNMP community string for sending traps */ +const char *snmp_community_trap = SNMP_COMMUNITY_TRAP; + +snmp_write_callback_fct snmp_write_callback; +void *snmp_write_callback_arg; + +snmp_inform_callback_fct snmp_inform_callback; +void *snmp_inform_callback_arg; + +#if LWIP_SNMP_CONFIGURE_VERSIONS + +static u8_t v1_enabled = 1; +static u8_t v2c_enabled = 1; +static u8_t v3_enabled = 1; + +static u8_t +snmp_version_enabled(u8_t version) +{ + if (version == SNMP_VERSION_1) { + return v1_enabled; + } else if (version == SNMP_VERSION_2c) { + return v2c_enabled; + } +#if LWIP_SNMP_V3 + else if (version == SNMP_VERSION_3) { + return v3_enabled; + } +#endif + else { + LWIP_ASSERT("Invalid SNMP version", 0); + return 0; + } +} + +u8_t +snmp_v1_enabled(void) +{ + return snmp_version_enabled(SNMP_VERSION_1); +} + +u8_t +snmp_v2c_enabled(void) +{ + return snmp_version_enabled(SNMP_VERSION_2c); +} + +u8_t +snmp_v3_enabled(void) +{ + return snmp_version_enabled(SNMP_VERSION_3); +} + +static void +snmp_version_enable(u8_t version, u8_t enable) +{ + if (version == SNMP_VERSION_1) { + v1_enabled = enable; + } else if (version == SNMP_VERSION_2c) { + v2c_enabled = enable; + } +#if LWIP_SNMP_V3 + else if (version == SNMP_VERSION_3) { + v3_enabled = enable; + } +#endif + else { + LWIP_ASSERT("Invalid SNMP version", 0); + } +} + +void +snmp_v1_enable(u8_t enable) +{ + snmp_version_enable(SNMP_VERSION_1, enable); +} + +void +snmp_v2c_enable(u8_t enable) +{ + snmp_version_enable(SNMP_VERSION_2c, enable); +} + +void +snmp_v3_enable(u8_t enable) +{ + snmp_version_enable(SNMP_VERSION_3, enable); +} + +#endif + +/** + * @ingroup snmp_core + * Returns current SNMP community string. + * @return current SNMP community string + */ +const char * +snmp_get_community(void) +{ + return snmp_community; +} + +/** + * @ingroup snmp_core + * Sets SNMP community string. + * The string itself (its storage) must be valid throughout the whole life of + * program (or until it is changed to sth else). + * + * @param community is a pointer to new community string + */ +void +snmp_set_community(const char *const community) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("community string is too long!", strlen(community) <= SNMP_MAX_COMMUNITY_STR_LEN); + snmp_community = community; +} + +/** + * @ingroup snmp_core + * Returns current SNMP write-access community string. + * @return current SNMP write-access community string + */ +const char * +snmp_get_community_write(void) +{ + return snmp_community_write; +} + +/** + * @ingroup snmp_traps + * Returns current SNMP community string used for sending traps. + * @return current SNMP community string used for sending traps + */ +const char * +snmp_get_community_trap(void) +{ + return snmp_community_trap; +} + +/** + * @ingroup snmp_core + * Sets SNMP community string for write-access. + * The string itself (its storage) must be valid throughout the whole life of + * program (or until it is changed to sth else). + * + * @param community is a pointer to new write-access community string + */ +void +snmp_set_community_write(const char *const community) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("community string must not be NULL", community != NULL); + LWIP_ASSERT("community string is too long!", strlen(community) <= SNMP_MAX_COMMUNITY_STR_LEN); + snmp_community_write = community; +} + +/** + * @ingroup snmp_traps + * Sets SNMP community string used for sending traps. + * The string itself (its storage) must be valid throughout the whole life of + * program (or until it is changed to sth else). + * + * @param community is a pointer to new trap community string + */ +void +snmp_set_community_trap(const char *const community) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("community string is too long!", strlen(community) <= SNMP_MAX_COMMUNITY_STR_LEN); + snmp_community_trap = community; +} + +/** + * @ingroup snmp_core + * Callback fired on every successful write access + */ +void +snmp_set_write_callback(snmp_write_callback_fct write_callback, void *callback_arg) +{ + LWIP_ASSERT_CORE_LOCKED(); + snmp_write_callback = write_callback; + snmp_write_callback_arg = callback_arg; +} + +/** + * @ingroup snmp_core + * Callback fired on every received INFORM confirmation (get-response) + */ +void +snmp_set_inform_callback(snmp_inform_callback_fct inform_callback, void* callback_arg) +{ + snmp_inform_callback = inform_callback; + snmp_inform_callback_arg = callback_arg; +} + +/* ----------------------------------------------------------------------- */ +/* forward declarations */ +/* ----------------------------------------------------------------------- */ + +static err_t snmp_process_get_request(struct snmp_request *request); +static err_t snmp_process_getnext_request(struct snmp_request *request); +static err_t snmp_process_getbulk_request(struct snmp_request *request); +static err_t snmp_process_set_request(struct snmp_request *request); + +static err_t snmp_parse_inbound_frame(struct snmp_request *request); +static err_t snmp_prepare_outbound_frame(struct snmp_request *request); +static err_t snmp_complete_outbound_frame(struct snmp_request *request); +static void snmp_execute_write_callbacks(struct snmp_request *request); + + +/* ----------------------------------------------------------------------- */ +/* implementation */ +/* ----------------------------------------------------------------------- */ + +void +snmp_receive(void *handle, struct pbuf *p, const ip_addr_t *source_ip, u16_t port) +{ + err_t err; + struct snmp_request request; + + memset(&request, 0, sizeof(request)); + request.handle = handle; + request.source_ip = source_ip; + request.source_port = port; + request.inbound_pbuf = p; + + snmp_stats.inpkts++; + + err = snmp_parse_inbound_frame(&request); + if (err == ERR_OK) { + if (request.request_type == SNMP_ASN1_CONTEXT_PDU_GET_RESP) { + if (request.error_status == SNMP_ERR_NOERROR) { + /* If callback function has been defined call it. */ + if (snmp_inform_callback != NULL) { + snmp_inform_callback(&request, snmp_inform_callback_arg); + } + } + /* stop further handling of GET RESP PDU, we are an agent */ + return; + } + err = snmp_prepare_outbound_frame(&request); + if (err == ERR_OK) { + + if (request.error_status == SNMP_ERR_NOERROR) { + /* only process frame if we do not already have an error to return (e.g. all readonly) */ + if (request.request_type == SNMP_ASN1_CONTEXT_PDU_GET_REQ) { + err = snmp_process_get_request(&request); + } else if (request.request_type == SNMP_ASN1_CONTEXT_PDU_GET_NEXT_REQ) { + err = snmp_process_getnext_request(&request); + } else if (request.request_type == SNMP_ASN1_CONTEXT_PDU_GET_BULK_REQ) { + err = snmp_process_getbulk_request(&request); + } else if (request.request_type == SNMP_ASN1_CONTEXT_PDU_SET_REQ) { + err = snmp_process_set_request(&request); + } + } +#if LWIP_SNMP_V3 + else { + struct snmp_varbind vb; + + vb.next = NULL; + vb.prev = NULL; + vb.type = SNMP_ASN1_TYPE_COUNTER32; + vb.value_len = sizeof(u32_t); + + switch (request.error_status) { + case SNMP_ERR_AUTHORIZATIONERROR: { + static const u32_t oid[] = { 1, 3, 6, 1, 6, 3, 15, 1, 1, 5, 0 }; + snmp_oid_assign(&vb.oid, oid, LWIP_ARRAYSIZE(oid)); + vb.value = &snmp_stats.wrongdigests; + } + break; + case SNMP_ERR_UNKNOWN_ENGINEID: { + static const u32_t oid[] = { 1, 3, 6, 1, 6, 3, 15, 1, 1, 4, 0 }; + snmp_oid_assign(&vb.oid, oid, LWIP_ARRAYSIZE(oid)); + vb.value = &snmp_stats.unknownengineids; + } + break; + case SNMP_ERR_UNKNOWN_SECURITYNAME: { + static const u32_t oid[] = { 1, 3, 6, 1, 6, 3, 15, 1, 1, 3, 0 }; + snmp_oid_assign(&vb.oid, oid, LWIP_ARRAYSIZE(oid)); + vb.value = &snmp_stats.unknownusernames; + } + break; + case SNMP_ERR_UNSUPPORTED_SECLEVEL: { + static const u32_t oid[] = { 1, 3, 6, 1, 6, 3, 15, 1, 1, 1, 0 }; + snmp_oid_assign(&vb.oid, oid, LWIP_ARRAYSIZE(oid)); + vb.value = &snmp_stats.unsupportedseclevels; + } + break; + case SNMP_ERR_NOTINTIMEWINDOW: { + static const u32_t oid[] = { 1, 3, 6, 1, 6, 3, 15, 1, 1, 2, 0 }; + snmp_oid_assign(&vb.oid, oid, LWIP_ARRAYSIZE(oid)); + vb.value = &snmp_stats.notintimewindows; + } + break; + case SNMP_ERR_DECRYIPTION_ERROR: { + static const u32_t oid[] = { 1, 3, 6, 1, 6, 3, 15, 1, 1, 6, 0 }; + snmp_oid_assign(&vb.oid, oid, LWIP_ARRAYSIZE(oid)); + vb.value = &snmp_stats.decryptionerrors; + } + break; + default: + /* Unknown or unhandled error_status */ + err = ERR_ARG; + } + + if (err == ERR_OK) { + snmp_append_outbound_varbind(&(request.outbound_pbuf_stream), &vb); + request.error_status = SNMP_ERR_NOERROR; + } + + request.request_out_type = (SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_CONTEXT_PDU_REPORT); + request.request_id = request.msg_id; + } +#endif + + if (err == ERR_OK) { + err = snmp_complete_outbound_frame(&request); + + if (err == ERR_OK) { + err = snmp_sendto(request.handle, request.outbound_pbuf, request.source_ip, request.source_port); + + if ((request.request_type == SNMP_ASN1_CONTEXT_PDU_SET_REQ) + && (request.error_status == SNMP_ERR_NOERROR) + && (snmp_write_callback != NULL)) { + /* raise write notification for all written objects */ + snmp_execute_write_callbacks(&request); + } + } + } + } + + if (request.outbound_pbuf != NULL) { + pbuf_free(request.outbound_pbuf); + } + } +} + +static u8_t +snmp_msg_getnext_validate_node_inst(struct snmp_node_instance *node_instance, void *validate_arg) +{ + if (((node_instance->access & SNMP_NODE_INSTANCE_ACCESS_READ) != SNMP_NODE_INSTANCE_ACCESS_READ) || (node_instance->get_value == NULL)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + +#if LWIP_HAVE_INT64 + if ((node_instance->asn1_type == SNMP_ASN1_TYPE_COUNTER64) && (((struct snmp_request *)validate_arg)->version == SNMP_VERSION_1)) { + /* according to RFC 2089 skip Counter64 objects in GetNext requests from v1 clients */ + return SNMP_ERR_NOSUCHINSTANCE; + } +#endif + + return SNMP_ERR_NOERROR; +} + +static void +snmp_process_varbind(struct snmp_request *request, struct snmp_varbind *vb, u8_t get_next) +{ + err_t err; + struct snmp_node_instance node_instance; + memset(&node_instance, 0, sizeof(node_instance)); + + if (get_next) { + struct snmp_obj_id result_oid; + request->error_status = snmp_get_next_node_instance_from_oid(vb->oid.id, vb->oid.len, snmp_msg_getnext_validate_node_inst, request, &result_oid, &node_instance); + + if (request->error_status == SNMP_ERR_NOERROR) { + snmp_oid_assign(&vb->oid, result_oid.id, result_oid.len); + } + } else { + request->error_status = snmp_get_node_instance_from_oid(vb->oid.id, vb->oid.len, &node_instance); + + if (request->error_status == SNMP_ERR_NOERROR) { + /* use 'getnext_validate' method for validation to avoid code duplication (some checks have to be executed here) */ + request->error_status = snmp_msg_getnext_validate_node_inst(&node_instance, request); + + if (request->error_status != SNMP_ERR_NOERROR) { + if (node_instance.release_instance != NULL) { + node_instance.release_instance(&node_instance); + } + } + } + } + + if (request->error_status != SNMP_ERR_NOERROR) { + if (request->error_status >= SNMP_VARBIND_EXCEPTION_OFFSET) { + if ((request->version == SNMP_VERSION_2c) || request->version == SNMP_VERSION_3) { + /* in SNMP v2c a varbind related exception is stored in varbind and not in frame header */ + vb->type = (SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_CLASS_CONTEXT | (request->error_status & SNMP_VARBIND_EXCEPTION_MASK)); + vb->value_len = 0; + + err = snmp_append_outbound_varbind(&(request->outbound_pbuf_stream), vb); + if (err == ERR_OK) { + /* we stored the exception in varbind -> go on */ + request->error_status = SNMP_ERR_NOERROR; + } else if (err == ERR_BUF) { + request->error_status = SNMP_ERR_TOOBIG; + } else { + request->error_status = SNMP_ERR_GENERROR; + } + } + } else { + /* according to RFC 1157/1905, all other errors only return genError */ + request->error_status = SNMP_ERR_GENERROR; + } + } else { + s16_t len = node_instance.get_value(&node_instance, vb->value); + + if (len >= 0) { + vb->value_len = (u16_t)len; /* cast is OK because we checked >= 0 above */ + vb->type = node_instance.asn1_type; + + LWIP_ASSERT("SNMP_MAX_VALUE_SIZE is configured too low", (vb->value_len & ~SNMP_GET_VALUE_RAW_DATA) <= SNMP_MAX_VALUE_SIZE); + err = snmp_append_outbound_varbind(&request->outbound_pbuf_stream, vb); + + if (err == ERR_BUF) { + request->error_status = SNMP_ERR_TOOBIG; + } else if (err != ERR_OK) { + request->error_status = SNMP_ERR_GENERROR; + } + } else { + request->error_status = SNMP_ERR_GENERROR; + } + + if (node_instance.release_instance != NULL) { + node_instance.release_instance(&node_instance); + } + } +} + + +/** + * Service an internal or external event for SNMP GET. + * + * @param request points to the associated message process state + */ +static err_t +snmp_process_get_request(struct snmp_request *request) +{ + snmp_vb_enumerator_err_t err; + struct snmp_varbind vb; + vb.value = request->value_buffer; + + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP get request\n")); + + while (request->error_status == SNMP_ERR_NOERROR) { + err = snmp_vb_enumerator_get_next(&request->inbound_varbind_enumerator, &vb); + if (err == SNMP_VB_ENUMERATOR_ERR_OK) { + if ((vb.type == SNMP_ASN1_TYPE_NULL) && (vb.value_len == 0)) { + snmp_process_varbind(request, &vb, 0); + } else { + request->error_status = SNMP_ERR_GENERROR; + } + } else if (err == SNMP_VB_ENUMERATOR_ERR_EOVB) { + /* no more varbinds in request */ + break; + } else if (err == SNMP_VB_ENUMERATOR_ERR_ASN1ERROR) { + /* malformed ASN.1, don't answer */ + return ERR_ARG; + } else { + request->error_status = SNMP_ERR_GENERROR; + } + } + + return ERR_OK; +} + +/** + * Service an internal or external event for SNMP GET. + * + * @param request points to the associated message process state + */ +static err_t +snmp_process_getnext_request(struct snmp_request *request) +{ + snmp_vb_enumerator_err_t err; + struct snmp_varbind vb; + vb.value = request->value_buffer; + + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP get-next request\n")); + + while (request->error_status == SNMP_ERR_NOERROR) { + err = snmp_vb_enumerator_get_next(&request->inbound_varbind_enumerator, &vb); + if (err == SNMP_VB_ENUMERATOR_ERR_OK) { + if ((vb.type == SNMP_ASN1_TYPE_NULL) && (vb.value_len == 0)) { + snmp_process_varbind(request, &vb, 1); + } else { + request->error_status = SNMP_ERR_GENERROR; + } + } else if (err == SNMP_VB_ENUMERATOR_ERR_EOVB) { + /* no more varbinds in request */ + break; + } else if (err == SNMP_VB_ENUMERATOR_ERR_ASN1ERROR) { + /* malformed ASN.1, don't answer */ + return ERR_ARG; + } else { + request->error_status = SNMP_ERR_GENERROR; + } + } + + return ERR_OK; +} + +/** + * Service an internal or external event for SNMP GETBULKT. + * + * @param request points to the associated message process state + */ +static err_t +snmp_process_getbulk_request(struct snmp_request *request) +{ + snmp_vb_enumerator_err_t err; + s32_t non_repeaters = request->non_repeaters; + s32_t repetitions; + u16_t repetition_offset = 0; + struct snmp_varbind_enumerator repetition_varbind_enumerator; + struct snmp_varbind vb; + vb.value = request->value_buffer; + + if (SNMP_LWIP_GETBULK_MAX_REPETITIONS > 0) { + repetitions = LWIP_MIN(request->max_repetitions, SNMP_LWIP_GETBULK_MAX_REPETITIONS); + } else { + repetitions = request->max_repetitions; + } + + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP get-bulk request\n")); + + /* process non repeaters and first repetition */ + while (request->error_status == SNMP_ERR_NOERROR) { + if (non_repeaters == 0) { + repetition_offset = request->outbound_pbuf_stream.offset; + + if (repetitions == 0) { + /* do not resolve repeaters when repetitions is set to 0 */ + break; + } + repetitions--; + } + + err = snmp_vb_enumerator_get_next(&request->inbound_varbind_enumerator, &vb); + if (err == SNMP_VB_ENUMERATOR_ERR_EOVB) { + /* no more varbinds in request */ + break; + } else if (err == SNMP_VB_ENUMERATOR_ERR_ASN1ERROR) { + /* malformed ASN.1, don't answer */ + return ERR_ARG; + } else if ((err != SNMP_VB_ENUMERATOR_ERR_OK) || (vb.type != SNMP_ASN1_TYPE_NULL) || (vb.value_len != 0)) { + request->error_status = SNMP_ERR_GENERROR; + } else { + snmp_process_varbind(request, &vb, 1); + non_repeaters--; + } + } + + /* process repetitions > 1 */ + while ((request->error_status == SNMP_ERR_NOERROR) && (repetitions > 0) && (request->outbound_pbuf_stream.offset != repetition_offset)) { + + u8_t all_endofmibview = 1; + + snmp_vb_enumerator_init(&repetition_varbind_enumerator, request->outbound_pbuf, repetition_offset, request->outbound_pbuf_stream.offset - repetition_offset); + repetition_offset = request->outbound_pbuf_stream.offset; /* for next loop */ + + while (request->error_status == SNMP_ERR_NOERROR) { + vb.value = NULL; /* do NOT decode value (we enumerate outbound buffer here, so all varbinds have values assigned) */ + err = snmp_vb_enumerator_get_next(&repetition_varbind_enumerator, &vb); + if (err == SNMP_VB_ENUMERATOR_ERR_OK) { + vb.value = request->value_buffer; + snmp_process_varbind(request, &vb, 1); + + if (request->error_status != SNMP_ERR_NOERROR) { + /* already set correct error-index (here it cannot be taken from inbound varbind enumerator) */ + request->error_index = request->non_repeaters + repetition_varbind_enumerator.varbind_count; + } else if (vb.type != (SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTEXT_VARBIND_END_OF_MIB_VIEW)) { + all_endofmibview = 0; + } + } else if (err == SNMP_VB_ENUMERATOR_ERR_EOVB) { + /* no more varbinds in request */ + break; + } else { + LWIP_DEBUGF(SNMP_DEBUG, ("Very strange, we cannot parse the varbind output that we created just before!")); + request->error_status = SNMP_ERR_GENERROR; + request->error_index = request->non_repeaters + repetition_varbind_enumerator.varbind_count; + } + } + + if ((request->error_status == SNMP_ERR_NOERROR) && all_endofmibview) { + /* stop when all varbinds in a loop return EndOfMibView */ + break; + } + + repetitions--; + } + + if (request->error_status == SNMP_ERR_TOOBIG) { + /* for GetBulk it is ok, if not all requested variables fit into the response -> just return the varbinds added so far */ + request->error_status = SNMP_ERR_NOERROR; + } + + return ERR_OK; +} + +/** + * Service an internal or external event for SNMP SET. + * + * @param request points to the associated message process state + */ +static err_t +snmp_process_set_request(struct snmp_request *request) +{ + snmp_vb_enumerator_err_t err; + struct snmp_varbind vb; + vb.value = request->value_buffer; + + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP set request\n")); + + /* perform set test on all objects */ + while (request->error_status == SNMP_ERR_NOERROR) { + err = snmp_vb_enumerator_get_next(&request->inbound_varbind_enumerator, &vb); + if (err == SNMP_VB_ENUMERATOR_ERR_OK) { + struct snmp_node_instance node_instance; + memset(&node_instance, 0, sizeof(node_instance)); + + request->error_status = snmp_get_node_instance_from_oid(vb.oid.id, vb.oid.len, &node_instance); + if (request->error_status == SNMP_ERR_NOERROR) { + if (node_instance.asn1_type != vb.type) { + request->error_status = SNMP_ERR_WRONGTYPE; + } else if (((node_instance.access & SNMP_NODE_INSTANCE_ACCESS_WRITE) != SNMP_NODE_INSTANCE_ACCESS_WRITE) || (node_instance.set_value == NULL)) { + request->error_status = SNMP_ERR_NOTWRITABLE; + } else { + if (node_instance.set_test != NULL) { + request->error_status = node_instance.set_test(&node_instance, vb.value_len, vb.value); + } + } + + if (node_instance.release_instance != NULL) { + node_instance.release_instance(&node_instance); + } + } + } else if (err == SNMP_VB_ENUMERATOR_ERR_EOVB) { + /* no more varbinds in request */ + break; + } else if (err == SNMP_VB_ENUMERATOR_ERR_INVALIDLENGTH) { + request->error_status = SNMP_ERR_WRONGLENGTH; + } else if (err == SNMP_VB_ENUMERATOR_ERR_ASN1ERROR) { + /* malformed ASN.1, don't answer */ + return ERR_ARG; + } else { + request->error_status = SNMP_ERR_GENERROR; + } + } + + /* perform real set operation on all objects */ + if (request->error_status == SNMP_ERR_NOERROR) { + snmp_vb_enumerator_init(&request->inbound_varbind_enumerator, request->inbound_pbuf, request->inbound_varbind_offset, request->inbound_varbind_len); + while (request->error_status == SNMP_ERR_NOERROR) { + err = snmp_vb_enumerator_get_next(&request->inbound_varbind_enumerator, &vb); + if (err == SNMP_VB_ENUMERATOR_ERR_OK) { + struct snmp_node_instance node_instance; + memset(&node_instance, 0, sizeof(node_instance)); + request->error_status = snmp_get_node_instance_from_oid(vb.oid.id, vb.oid.len, &node_instance); + if (request->error_status == SNMP_ERR_NOERROR) { + if (node_instance.set_value(&node_instance, vb.value_len, vb.value) != SNMP_ERR_NOERROR) { + if (request->inbound_varbind_enumerator.varbind_count == 1) { + request->error_status = SNMP_ERR_COMMITFAILED; + } else { + /* we cannot undo the set operations done so far */ + request->error_status = SNMP_ERR_UNDOFAILED; + } + } + + if (node_instance.release_instance != NULL) { + node_instance.release_instance(&node_instance); + } + } + } else if (err == SNMP_VB_ENUMERATOR_ERR_EOVB) { + /* no more varbinds in request */ + break; + } else { + /* first time enumerating varbinds work but second time not, although nothing should have changed in between ??? */ + request->error_status = SNMP_ERR_GENERROR; + } + } + } + + return ERR_OK; +} + +#define PARSE_EXEC(code, retValue) \ + if ((code) != ERR_OK) { \ + LWIP_DEBUGF(SNMP_DEBUG, ("Malformed ASN.1 detected.\n")); \ + snmp_stats.inasnparseerrs++; \ + return retValue; \ + } + +#define PARSE_ASSERT(cond, retValue) \ + if (!(cond)) { \ + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP parse assertion failed!: " # cond)); \ + snmp_stats.inasnparseerrs++; \ + return retValue; \ + } + +#define BUILD_EXEC(code, retValue) \ + if ((code) != ERR_OK) { \ + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP error during creation of outbound frame!: " # code)); \ + return retValue; \ + } + +#define IF_PARSE_EXEC(code) PARSE_EXEC(code, ERR_ARG) +#define IF_PARSE_ASSERT(code) PARSE_ASSERT(code, ERR_ARG) + +/** + * Checks and decodes incoming SNMP message header, logs header errors. + * + * @param request points to the current message request state return + * @return + * - ERR_OK SNMP header is sane and accepted + * - ERR_VAL SNMP header is either malformed or rejected + */ +static err_t +snmp_parse_inbound_frame(struct snmp_request *request) +{ + struct snmp_pbuf_stream pbuf_stream; + struct snmp_asn1_tlv tlv; + s32_t parent_tlv_value_len; + s32_t s32_value; + err_t err; +#if LWIP_SNMP_V3 + snmpv3_auth_algo_t auth; + snmpv3_priv_algo_t priv; +#endif + + IF_PARSE_EXEC(snmp_pbuf_stream_init(&pbuf_stream, request->inbound_pbuf, 0, request->inbound_pbuf->tot_len)); + + /* decode main container consisting of version, community and PDU */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT((tlv.type == SNMP_ASN1_TYPE_SEQUENCE) && (tlv.value_len == pbuf_stream.length)); + parent_tlv_value_len = tlv.value_len; + + /* decode version */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_INTEGER); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &s32_value)); + + if (((s32_value != SNMP_VERSION_1) && + (s32_value != SNMP_VERSION_2c) +#if LWIP_SNMP_V3 + && (s32_value != SNMP_VERSION_3) +#endif + ) +#if LWIP_SNMP_CONFIGURE_VERSIONS + || (!snmp_version_enabled(s32_value)) +#endif + ) { + /* unsupported SNMP version */ + snmp_stats.inbadversions++; + return ERR_ARG; + } + request->version = (u8_t)s32_value; + +#if LWIP_SNMP_V3 + if (request->version == SNMP_VERSION_3) { + u16_t u16_value; + u16_t inbound_msgAuthenticationParameters_offset; + + /* SNMPv3 doesn't use communities */ + /* @todo: Differentiate read/write access */ + strncpy((char *)request->community, snmp_community, SNMP_MAX_COMMUNITY_STR_LEN); + request->community[SNMP_MAX_COMMUNITY_STR_LEN] = 0; /* ensure NULL termination (strncpy does NOT guarantee it!) */ + request->community_strlen = (u16_t)strlen((char *)request->community); + + /* RFC3414 globalData */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_SEQUENCE); + parent_tlv_value_len -= SNMP_ASN1_TLV_HDR_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + /* decode msgID */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_INTEGER); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &s32_value)); + request->msg_id = s32_value; + + /* decode msgMaxSize */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_INTEGER); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &s32_value)); + request->msg_max_size = s32_value; + + /* decode msgFlags */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_OCTET_STRING); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &s32_value)); + request->msg_flags = (u8_t)s32_value; + + /* decode msgSecurityModel */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_INTEGER); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &s32_value)); + request->msg_security_model = s32_value; + + /* RFC3414 msgSecurityParameters + * The User-based Security Model defines the contents of the OCTET + * STRING as a SEQUENCE. + * + * We skip the protective dummy OCTET STRING header + * to access the SEQUENCE header. + */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_OCTET_STRING); + parent_tlv_value_len -= SNMP_ASN1_TLV_HDR_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + /* msgSecurityParameters SEQUENCE header */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_SEQUENCE); + parent_tlv_value_len -= SNMP_ASN1_TLV_HDR_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + /* decode msgAuthoritativeEngineID */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_OCTET_STRING); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_raw(&pbuf_stream, tlv.value_len, request->msg_authoritative_engine_id, + &u16_value, SNMP_V3_MAX_ENGINE_ID_LENGTH)); + request->msg_authoritative_engine_id_len = (u8_t)u16_value; + + /* msgAuthoritativeEngineBoots */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_INTEGER); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &request->msg_authoritative_engine_boots)); + + /* msgAuthoritativeEngineTime */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_INTEGER); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &request->msg_authoritative_engine_time)); + + /* msgUserName */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_OCTET_STRING); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_raw(&pbuf_stream, tlv.value_len, request->msg_user_name, + &u16_value, SNMP_V3_MAX_USER_LENGTH)); + request->msg_user_name_len = (u8_t)u16_value; + + /* msgAuthenticationParameters */ + memset(request->msg_authentication_parameters, 0, SNMP_V3_MAX_AUTH_PARAM_LENGTH); + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_OCTET_STRING); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + /* Remember position */ + inbound_msgAuthenticationParameters_offset = pbuf_stream.offset; + LWIP_UNUSED_ARG(inbound_msgAuthenticationParameters_offset); + /* Read auth parameters */ + /* IF_PARSE_ASSERT(tlv.value_len <= SNMP_V3_MAX_AUTH_PARAM_LENGTH); */ + IF_PARSE_EXEC(snmp_asn1_dec_raw(&pbuf_stream, tlv.value_len, request->msg_authentication_parameters, + &u16_value, tlv.value_len)); + request->msg_authentication_parameters_len = (u8_t)u16_value; + + /* msgPrivacyParameters */ + memset(request->msg_privacy_parameters, 0, SNMP_V3_MAX_PRIV_PARAM_LENGTH); + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_OCTET_STRING); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_raw(&pbuf_stream, tlv.value_len, request->msg_privacy_parameters, + &u16_value, SNMP_V3_MAX_PRIV_PARAM_LENGTH)); + request->msg_privacy_parameters_len = (u8_t)u16_value; + + /* validate securityParameters here (do this after decoding because we don't want to increase other counters for wrong frames) + * 1) securityParameters was correctly serialized if we reach here. + * 2) securityParameters are already cached. + * 3) if msgAuthoritativeEngineID is unknown, zero-length or too long: + b) https://tools.ietf.org/html/rfc3414#section-7 + */ + { + const char *eid; + u8_t eid_len; + + snmpv3_get_engine_id(&eid, &eid_len); + + if ((request->msg_authoritative_engine_id_len == 0) || + (request->msg_authoritative_engine_id_len != eid_len) || + (memcmp(eid, request->msg_authoritative_engine_id, eid_len) != 0)) { + snmp_stats.unknownengineids++; + request->msg_flags = 0; /* noauthnopriv */ + request->error_status = SNMP_ERR_UNKNOWN_ENGINEID; + return ERR_OK; + } + } + + /* 4) verify username */ + if (snmpv3_get_user((char *)request->msg_user_name, &auth, NULL, &priv, NULL)) { + snmp_stats.unknownusernames++; + request->msg_flags = 0; /* noauthnopriv */ + request->error_status = SNMP_ERR_UNKNOWN_SECURITYNAME; + return ERR_OK; + } + + /* 5) verify security level */ + switch (request->msg_flags & (SNMP_V3_AUTH_FLAG | SNMP_V3_PRIV_FLAG)) { + case SNMP_V3_NOAUTHNOPRIV: + if ((auth != SNMP_V3_AUTH_ALGO_INVAL) || (priv != SNMP_V3_PRIV_ALGO_INVAL)) { + /* Invalid security level for user */ + snmp_stats.unsupportedseclevels++; + request->msg_flags = SNMP_V3_NOAUTHNOPRIV; + request->error_status = SNMP_ERR_UNSUPPORTED_SECLEVEL; + return ERR_OK; + } + break; +#if LWIP_SNMP_V3_CRYPTO + case SNMP_V3_AUTHNOPRIV: + if ((auth == SNMP_V3_AUTH_ALGO_INVAL) || (priv != SNMP_V3_PRIV_ALGO_INVAL)) { + /* Invalid security level for user */ + snmp_stats.unsupportedseclevels++; + request->msg_flags = SNMP_V3_NOAUTHNOPRIV; + request->error_status = SNMP_ERR_UNSUPPORTED_SECLEVEL; + return ERR_OK; + } + break; + case SNMP_V3_AUTHPRIV: + if ((auth == SNMP_V3_AUTH_ALGO_INVAL) || (priv == SNMP_V3_PRIV_ALGO_INVAL)) { + /* Invalid security level for user */ + snmp_stats.unsupportedseclevels++; + request->msg_flags = SNMP_V3_NOAUTHNOPRIV; + request->error_status = SNMP_ERR_UNSUPPORTED_SECLEVEL; + return ERR_OK; + } + break; +#endif + default: + snmp_stats.unsupportedseclevels++; + request->msg_flags = SNMP_V3_NOAUTHNOPRIV; + request->error_status = SNMP_ERR_UNSUPPORTED_SECLEVEL; + return ERR_OK; + } + + /* 6) if securitylevel specifies authentication, authenticate message. */ +#if LWIP_SNMP_V3_CRYPTO + if (request->msg_flags & SNMP_V3_AUTH_FLAG) { + const u8_t zero_arr[SNMP_V3_MAX_AUTH_PARAM_LENGTH] = { 0 }; + u8_t key[20]; + u8_t hmac[LWIP_MAX(SNMP_V3_SHA_LEN, SNMP_V3_MD5_LEN)]; + struct snmp_pbuf_stream auth_stream; + + if (request->msg_authentication_parameters_len > SNMP_V3_MAX_AUTH_PARAM_LENGTH) { + snmp_stats.wrongdigests++; + request->msg_flags = SNMP_V3_NOAUTHNOPRIV; + request->error_status = SNMP_ERR_AUTHORIZATIONERROR; + return ERR_OK; + } + + /* Rewind stream */ + IF_PARSE_EXEC(snmp_pbuf_stream_init(&auth_stream, request->inbound_pbuf, 0, request->inbound_pbuf->tot_len)); + IF_PARSE_EXEC(snmp_pbuf_stream_seek_abs(&auth_stream, inbound_msgAuthenticationParameters_offset)); + /* Set auth parameters to zero for verification */ + IF_PARSE_EXEC(snmp_asn1_enc_raw(&auth_stream, zero_arr, request->msg_authentication_parameters_len)); + + /* Verify authentication */ + IF_PARSE_EXEC(snmp_pbuf_stream_init(&auth_stream, request->inbound_pbuf, 0, request->inbound_pbuf->tot_len)); + + IF_PARSE_EXEC(snmpv3_get_user((char *)request->msg_user_name, &auth, key, NULL, NULL)); + IF_PARSE_EXEC(snmpv3_auth(&auth_stream, request->inbound_pbuf->tot_len, key, auth, hmac)); + + if (memcmp(request->msg_authentication_parameters, hmac, SNMP_V3_MAX_AUTH_PARAM_LENGTH)) { + snmp_stats.wrongdigests++; + request->msg_flags = SNMP_V3_NOAUTHNOPRIV; + request->error_status = SNMP_ERR_AUTHORIZATIONERROR; + return ERR_OK; + } + + /* 7) if securitylevel specifies authentication, verify engineboots, enginetime and lastenginetime */ + { + s32_t boots = snmpv3_get_engine_boots_internal(); + if ((request->msg_authoritative_engine_boots != boots) || (boots == 2147483647UL)) { + snmp_stats.notintimewindows++; + request->msg_flags = SNMP_V3_AUTHNOPRIV; + request->error_status = SNMP_ERR_NOTINTIMEWINDOW; + return ERR_OK; + } + } + { + s32_t time = snmpv3_get_engine_time_internal(); + if (request->msg_authoritative_engine_time > (time + 150)) { + snmp_stats.notintimewindows++; + request->msg_flags = SNMP_V3_AUTHNOPRIV; + request->error_status = SNMP_ERR_NOTINTIMEWINDOW; + return ERR_OK; + } else if (time > 150) { + if (request->msg_authoritative_engine_time < (time - 150)) { + snmp_stats.notintimewindows++; + request->msg_flags = SNMP_V3_AUTHNOPRIV; + request->error_status = SNMP_ERR_NOTINTIMEWINDOW; + return ERR_OK; + } + } + } + } +#endif + + /* 8) if securitylevel specifies privacy, decrypt message. */ +#if LWIP_SNMP_V3_CRYPTO + if (request->msg_flags & SNMP_V3_PRIV_FLAG) { + /* Decrypt message */ + + u8_t key[20]; + + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_OCTET_STRING); + parent_tlv_value_len -= SNMP_ASN1_TLV_HDR_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmpv3_get_user((char *)request->msg_user_name, NULL, NULL, &priv, key)); + if (snmpv3_crypt(&pbuf_stream, tlv.value_len, key, + request->msg_privacy_parameters, request->msg_authoritative_engine_boots, + request->msg_authoritative_engine_time, priv, SNMP_V3_PRIV_MODE_DECRYPT) != ERR_OK) { + snmp_stats.decryptionerrors++; + request->msg_flags = SNMP_V3_AUTHNOPRIV; + request->error_status = SNMP_ERR_DECRYIPTION_ERROR; + return ERR_OK; + } + } +#endif + /* 9) calculate max size of scoped pdu? + * 10) securityname for user is retrieved from usertable? + * 11) security data is cached? + * 12) + */ + + /* Scoped PDU + * Encryption context + */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_SEQUENCE); + parent_tlv_value_len -= SNMP_ASN1_TLV_HDR_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + /* contextEngineID */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_OCTET_STRING); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_raw(&pbuf_stream, tlv.value_len, request->context_engine_id, + &u16_value, SNMP_V3_MAX_ENGINE_ID_LENGTH)); + request->context_engine_id_len = (u8_t)u16_value; + /* TODO: do we need to verify this contextengineid too? */ + + /* contextName */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_OCTET_STRING); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_raw(&pbuf_stream, tlv.value_len, request->context_name, + &u16_value, SNMP_V3_MAX_ENGINE_ID_LENGTH)); + request->context_name_len = (u8_t)u16_value; + /* TODO: do we need to verify this contextname too? */ + } else +#endif + { + /* decode community */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_OCTET_STRING); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + err = snmp_asn1_dec_raw(&pbuf_stream, tlv.value_len, request->community, &request->community_strlen, SNMP_MAX_COMMUNITY_STR_LEN); + if (err == ERR_MEM) { + /* community string does not fit in our buffer -> its too long -> its invalid */ + request->community_strlen = 0; + snmp_pbuf_stream_seek(&pbuf_stream, tlv.value_len); + } else { + IF_PARSE_ASSERT(err == ERR_OK); + } + /* add zero terminator */ + request->community[request->community_strlen] = 0; + } + + /* decode PDU type (next container level) */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.value_len <= pbuf_stream.length); + request->inbound_padding_len = pbuf_stream.length - tlv.value_len; + parent_tlv_value_len = tlv.value_len; + + /* validate PDU type */ + switch (tlv.type) { + case (SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_CONTEXT_PDU_GET_REQ): + /* GetRequest PDU */ + snmp_stats.ingetrequests++; + break; + case (SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_CONTEXT_PDU_GET_NEXT_REQ): + /* GetNextRequest PDU */ + snmp_stats.ingetnexts++; + break; + case (SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_CONTEXT_PDU_GET_BULK_REQ): + /* GetBulkRequest PDU */ + if (request->version < SNMP_VERSION_2c) { + /* RFC2089: invalid, drop packet */ + return ERR_ARG; + } + break; + case (SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_CONTEXT_PDU_SET_REQ): + /* SetRequest PDU */ + snmp_stats.insetrequests++; + break; + case (SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_CONTEXT_PDU_GET_RESP): + /* GetResponse PDU */ + snmp_stats.ingetresponses++; + break; + default: + /* unsupported input PDU for this agent (no parse error) */ + LWIP_DEBUGF(SNMP_DEBUG, ("Unknown/Invalid SNMP PDU type received: %d", tlv.type)); \ + return ERR_ARG; + } + request->request_type = tlv.type & SNMP_ASN1_DATATYPE_MASK; + request->request_out_type = (SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_CONTEXT_PDU_GET_RESP); + + /* validate community (do this after decoding PDU type because we don't want to increase 'inbadcommunitynames' for wrong frame types */ + if (request->community_strlen == 0) { + /* community string was too long or really empty*/ + snmp_stats.inbadcommunitynames++; + snmp_authfail_trap(); + return ERR_ARG; + } else if (request->request_type == SNMP_ASN1_CONTEXT_PDU_SET_REQ) { + if (snmp_community_write[0] == 0) { + /* our write community is empty, that means all our objects are readonly */ + request->error_status = SNMP_ERR_NOTWRITABLE; + request->error_index = 1; + } else if (strncmp(snmp_community_write, (const char *)request->community, SNMP_MAX_COMMUNITY_STR_LEN) != 0) { + /* community name does not match */ + snmp_stats.inbadcommunitynames++; + snmp_authfail_trap(); + return ERR_ARG; + } + } else { + if (strncmp(snmp_community, (const char *)request->community, SNMP_MAX_COMMUNITY_STR_LEN) != 0) { + /* community name does not match */ + snmp_stats.inbadcommunitynames++; + snmp_authfail_trap(); + return ERR_ARG; + } + } + + /* decode request ID */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_INTEGER); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &request->request_id)); + + /* decode error status / non-repeaters */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_INTEGER); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + if (request->request_type == SNMP_ASN1_CONTEXT_PDU_GET_BULK_REQ) { + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &request->non_repeaters)); + if (request->non_repeaters < 0) { + /* RFC 1905, 4.2.3 */ + request->non_repeaters = 0; + } + } else { + /* only check valid value, don't touch 'request->error_status', maybe a response error status was already set to above; */ + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &s32_value)); + IF_PARSE_ASSERT(s32_value == SNMP_ERR_NOERROR); + } + + /* decode error index / max-repetitions */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT(tlv.type == SNMP_ASN1_TYPE_INTEGER); + parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv); + IF_PARSE_ASSERT(parent_tlv_value_len > 0); + + if (request->request_type == SNMP_ASN1_CONTEXT_PDU_GET_BULK_REQ) { + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &request->max_repetitions)); + if (request->max_repetitions < 0) { + /* RFC 1905, 4.2.3 */ + request->max_repetitions = 0; + } + } else { + IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &request->error_index)); + IF_PARSE_ASSERT(s32_value == 0); + } + + /* decode varbind-list type (next container level) */ + IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv)); + IF_PARSE_ASSERT((tlv.type == SNMP_ASN1_TYPE_SEQUENCE) && (tlv.value_len <= pbuf_stream.length)); + + request->inbound_varbind_offset = pbuf_stream.offset; + request->inbound_varbind_len = pbuf_stream.length - request->inbound_padding_len; + snmp_vb_enumerator_init(&(request->inbound_varbind_enumerator), request->inbound_pbuf, request->inbound_varbind_offset, request->inbound_varbind_len); + + return ERR_OK; +} + +#define OF_BUILD_EXEC(code) BUILD_EXEC(code, ERR_ARG) + +static err_t +snmp_prepare_outbound_frame(struct snmp_request *request) +{ + struct snmp_asn1_tlv tlv; + struct snmp_pbuf_stream *pbuf_stream = &(request->outbound_pbuf_stream); + + /* try allocating pbuf(s) for maximum response size */ + request->outbound_pbuf = pbuf_alloc(PBUF_TRANSPORT, 1472, PBUF_RAM); + if (request->outbound_pbuf == NULL) { + return ERR_MEM; + } + + snmp_pbuf_stream_init(pbuf_stream, request->outbound_pbuf, 0, request->outbound_pbuf->tot_len); + + /* 'Message' sequence */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 3, 0); + OF_BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + + /* version */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 0); + snmp_asn1_enc_s32t_cnt(request->version, &tlv.value_len); + OF_BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + OF_BUILD_EXEC( snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, request->version) ); + +#if LWIP_SNMP_V3 + if (request->version < SNMP_VERSION_3) { +#endif + /* community */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 0, request->community_strlen); + OF_BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + OF_BUILD_EXEC( snmp_asn1_enc_raw(pbuf_stream, request->community, request->community_strlen) ); +#if LWIP_SNMP_V3 + } else { + const char *id; + + /* globalData */ + request->outbound_msg_global_data_offset = pbuf_stream->offset; + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 1, 0); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + + /* msgID */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 1); + snmp_asn1_enc_s32t_cnt(request->msg_id, &tlv.value_len); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, request->msg_id)); + + /* msgMaxSize */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 1); + snmp_asn1_enc_s32t_cnt(request->msg_max_size, &tlv.value_len); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, request->msg_max_size)); + + /* msgFlags */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 0, 1); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_raw(pbuf_stream, &request->msg_flags, 1)); + + /* msgSecurityModel */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 1); + snmp_asn1_enc_s32t_cnt(request->msg_security_model, &tlv.value_len); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, request->msg_security_model)); + + /* end of msgGlobalData */ + request->outbound_msg_global_data_end = pbuf_stream->offset; + + /* msgSecurityParameters */ + request->outbound_msg_security_parameters_str_offset = pbuf_stream->offset; + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 1, 0); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + + request->outbound_msg_security_parameters_seq_offset = pbuf_stream->offset; + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 1, 0); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + + /* msgAuthoritativeEngineID */ + snmpv3_get_engine_id(&id, &request->msg_authoritative_engine_id_len); + MEMCPY(request->msg_authoritative_engine_id, id, request->msg_authoritative_engine_id_len); + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 0, request->msg_authoritative_engine_id_len); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_raw(pbuf_stream, request->msg_authoritative_engine_id, request->msg_authoritative_engine_id_len)); + + request->msg_authoritative_engine_time = snmpv3_get_engine_time(); + request->msg_authoritative_engine_boots = snmpv3_get_engine_boots(); + + /* msgAuthoritativeEngineBoots */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 0); + snmp_asn1_enc_s32t_cnt(request->msg_authoritative_engine_boots, &tlv.value_len); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, request->msg_authoritative_engine_boots)); + + /* msgAuthoritativeEngineTime */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 0); + snmp_asn1_enc_s32t_cnt(request->msg_authoritative_engine_time, &tlv.value_len); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, request->msg_authoritative_engine_time)); + + /* msgUserName */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 0, request->msg_user_name_len); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_raw(pbuf_stream, request->msg_user_name, request->msg_user_name_len)); + +#if LWIP_SNMP_V3_CRYPTO + /* msgAuthenticationParameters */ + if (request->msg_flags & SNMP_V3_AUTH_FLAG) { + memset(request->msg_authentication_parameters, 0, SNMP_V3_MAX_AUTH_PARAM_LENGTH); + request->outbound_msg_authentication_parameters_offset = pbuf_stream->offset; + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 1, SNMP_V3_MAX_AUTH_PARAM_LENGTH); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_raw(pbuf_stream, request->msg_authentication_parameters, SNMP_V3_MAX_AUTH_PARAM_LENGTH)); + } else +#endif + { + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 0, 0); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + } + +#if LWIP_SNMP_V3_CRYPTO + /* msgPrivacyParameters */ + if (request->msg_flags & SNMP_V3_PRIV_FLAG) { + snmpv3_build_priv_param(request->msg_privacy_parameters); + + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 0, SNMP_V3_MAX_PRIV_PARAM_LENGTH); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_raw(pbuf_stream, request->msg_privacy_parameters, SNMP_V3_MAX_PRIV_PARAM_LENGTH)); + } else +#endif + { + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 0, 0); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + } + + /* End of msgSecurityParameters, so we can calculate the length of this sequence later */ + request->outbound_msg_security_parameters_end = pbuf_stream->offset; + +#if LWIP_SNMP_V3_CRYPTO + /* For encryption we have to encapsulate the payload in an octet string */ + if (request->msg_flags & SNMP_V3_PRIV_FLAG) { + request->outbound_scoped_pdu_string_offset = pbuf_stream->offset; + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 3, 0); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + } +#endif + /* Scoped PDU + * Encryption context + */ + request->outbound_scoped_pdu_seq_offset = pbuf_stream->offset; + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 3, 0); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + + /* contextEngineID */ + snmpv3_get_engine_id(&id, &request->context_engine_id_len); + MEMCPY(request->context_engine_id, id, request->context_engine_id_len); + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 0, request->context_engine_id_len); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_raw(pbuf_stream, request->context_engine_id, request->context_engine_id_len)); + + /* contextName */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 0, request->context_name_len); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_raw(pbuf_stream, request->context_name, request->context_name_len)); + } +#endif + + /* 'PDU' sequence */ + request->outbound_pdu_offset = pbuf_stream->offset; + SNMP_ASN1_SET_TLV_PARAMS(tlv, request->request_out_type, 3, 0); + OF_BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + + /* request ID */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 0); + snmp_asn1_enc_s32t_cnt(request->request_id, &tlv.value_len); + OF_BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + OF_BUILD_EXEC( snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, request->request_id) ); + + /* error status */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 1); + OF_BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + request->outbound_error_status_offset = pbuf_stream->offset; + OF_BUILD_EXEC( snmp_pbuf_stream_write(pbuf_stream, 0) ); + + /* error index */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 1); + OF_BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + request->outbound_error_index_offset = pbuf_stream->offset; + OF_BUILD_EXEC( snmp_pbuf_stream_write(pbuf_stream, 0) ); + + /* 'VarBindList' sequence */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 3, 0); + OF_BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + + request->outbound_varbind_offset = pbuf_stream->offset; + + return ERR_OK; +} + +/** Calculate the length of a varbind list */ +err_t +snmp_varbind_length(struct snmp_varbind *varbind, struct snmp_varbind_len *len) +{ + /* calculate required lengths */ + snmp_asn1_enc_oid_cnt(varbind->oid.id, varbind->oid.len, &len->oid_value_len); + snmp_asn1_enc_length_cnt(len->oid_value_len, &len->oid_len_len); + + if (varbind->value_len == 0) { + len->value_value_len = 0; + } else if (varbind->value_len & SNMP_GET_VALUE_RAW_DATA) { + len->value_value_len = varbind->value_len & (~SNMP_GET_VALUE_RAW_DATA); + } else { + switch (varbind->type) { + case SNMP_ASN1_TYPE_INTEGER: + if (varbind->value_len != sizeof (s32_t)) { + return ERR_VAL; + } + snmp_asn1_enc_s32t_cnt(*((s32_t *) varbind->value), &len->value_value_len); + break; + case SNMP_ASN1_TYPE_COUNTER: + case SNMP_ASN1_TYPE_GAUGE: + case SNMP_ASN1_TYPE_TIMETICKS: + if (varbind->value_len != sizeof (u32_t)) { + return ERR_VAL; + } + snmp_asn1_enc_u32t_cnt(*((u32_t *) varbind->value), &len->value_value_len); + break; + case SNMP_ASN1_TYPE_OCTET_STRING: + case SNMP_ASN1_TYPE_IPADDR: + case SNMP_ASN1_TYPE_OPAQUE: + len->value_value_len = varbind->value_len; + break; + case SNMP_ASN1_TYPE_NULL: + if (varbind->value_len != 0) { + return ERR_VAL; + } + len->value_value_len = 0; + break; + case SNMP_ASN1_TYPE_OBJECT_ID: + if ((varbind->value_len & 0x03) != 0) { + return ERR_VAL; + } + snmp_asn1_enc_oid_cnt((u32_t *) varbind->value, varbind->value_len >> 2, &len->value_value_len); + break; +#if LWIP_HAVE_INT64 + case SNMP_ASN1_TYPE_COUNTER64: + if (varbind->value_len != sizeof(u64_t)) { + return ERR_VAL; + } + snmp_asn1_enc_u64t_cnt(*(u64_t *)varbind->value, &len->value_value_len); + break; +#endif + default: + /* unsupported type */ + return ERR_VAL; + } + } + snmp_asn1_enc_length_cnt(len->value_value_len, &len->value_len_len); + + len->vb_value_len = 1 + len->oid_len_len + len->oid_value_len + 1 + len->value_len_len + len->value_value_len; + snmp_asn1_enc_length_cnt(len->vb_value_len, &len->vb_len_len); + + return ERR_OK; +} + +#define OVB_BUILD_EXEC(code) BUILD_EXEC(code, ERR_ARG) + +err_t +snmp_append_outbound_varbind(struct snmp_pbuf_stream *pbuf_stream, struct snmp_varbind *varbind) +{ + struct snmp_asn1_tlv tlv; + struct snmp_varbind_len len; + err_t err; + + err = snmp_varbind_length(varbind, &len); + + if (err != ERR_OK) { + return err; + } + + /* check length already before adding first data because in case of GetBulk, + * data added so far is returned and therefore no partial data shall be added + */ + if ((1 + len.vb_len_len + len.vb_value_len) > pbuf_stream->length) { + return ERR_BUF; + } + + /* 'VarBind' sequence */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, len.vb_len_len, len.vb_value_len); + OVB_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + + /* VarBind OID */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OBJECT_ID, len.oid_len_len, len.oid_value_len); + OVB_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + OVB_BUILD_EXEC(snmp_asn1_enc_oid(pbuf_stream, varbind->oid.id, varbind->oid.len)); + + /* VarBind value */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, varbind->type, len.value_len_len, len.value_value_len); + OVB_BUILD_EXEC(snmp_ans1_enc_tlv(pbuf_stream, &tlv)); + + if (len.value_value_len > 0) { + if (varbind->value_len & SNMP_GET_VALUE_RAW_DATA) { + OVB_BUILD_EXEC(snmp_asn1_enc_raw(pbuf_stream, (u8_t *) varbind->value, len.value_value_len)); + } else { + switch (varbind->type) { + case SNMP_ASN1_TYPE_INTEGER: + OVB_BUILD_EXEC(snmp_asn1_enc_s32t(pbuf_stream, len.value_value_len, *((s32_t *) varbind->value))); + break; + case SNMP_ASN1_TYPE_COUNTER: + case SNMP_ASN1_TYPE_GAUGE: + case SNMP_ASN1_TYPE_TIMETICKS: + OVB_BUILD_EXEC(snmp_asn1_enc_u32t(pbuf_stream, len.value_value_len, *((u32_t *) varbind->value))); + break; + case SNMP_ASN1_TYPE_OCTET_STRING: + case SNMP_ASN1_TYPE_IPADDR: + case SNMP_ASN1_TYPE_OPAQUE: + OVB_BUILD_EXEC(snmp_asn1_enc_raw(pbuf_stream, (u8_t *) varbind->value, len.value_value_len)); + len.value_value_len = varbind->value_len; + break; + case SNMP_ASN1_TYPE_OBJECT_ID: + OVB_BUILD_EXEC(snmp_asn1_enc_oid(pbuf_stream, (u32_t *) varbind->value, varbind->value_len / sizeof (u32_t))); + break; +#if LWIP_HAVE_INT64 + case SNMP_ASN1_TYPE_COUNTER64: + OVB_BUILD_EXEC(snmp_asn1_enc_u64t(pbuf_stream, len.value_value_len, *(u64_t *) varbind->value)); + break; +#endif + default: + LWIP_ASSERT("Unknown variable type", 0); + break; + } + } + } + + return ERR_OK; +} + +static err_t +snmp_complete_outbound_frame(struct snmp_request *request) +{ + struct snmp_asn1_tlv tlv; + u16_t frame_size; + u8_t outbound_padding = 0; + + if (request->version == SNMP_VERSION_1) { + if (request->error_status != SNMP_ERR_NOERROR) { + /* map v2c error codes to v1 compliant error code (according to RFC 2089) */ + switch (request->error_status) { + /* mapping of implementation specific "virtual" error codes + * (during processing of frame we already stored them in error_status field, + * so no need to check all varbinds here for those exceptions as suggested by RFC) */ + case SNMP_ERR_NOSUCHINSTANCE: + case SNMP_ERR_NOSUCHOBJECT: + case SNMP_ERR_ENDOFMIBVIEW: + request->error_status = SNMP_ERR_NOSUCHNAME; + break; + /* mapping according to RFC */ + case SNMP_ERR_WRONGVALUE: + case SNMP_ERR_WRONGENCODING: + case SNMP_ERR_WRONGTYPE: + case SNMP_ERR_WRONGLENGTH: + case SNMP_ERR_INCONSISTENTVALUE: + request->error_status = SNMP_ERR_BADVALUE; + break; + case SNMP_ERR_NOACCESS: + case SNMP_ERR_NOTWRITABLE: + case SNMP_ERR_NOCREATION: + case SNMP_ERR_INCONSISTENTNAME: + case SNMP_ERR_AUTHORIZATIONERROR: + request->error_status = SNMP_ERR_NOSUCHNAME; + break; + case SNMP_ERR_RESOURCEUNAVAILABLE: + case SNMP_ERR_COMMITFAILED: + case SNMP_ERR_UNDOFAILED: + default: + request->error_status = SNMP_ERR_GENERROR; + break; + } + } + } else { + if (request->request_type == SNMP_ASN1_CONTEXT_PDU_SET_REQ) { + /* map error codes to according to RFC 1905 (4.2.5. The SetRequest-PDU) return 'NotWritable' for unknown OIDs) */ + switch (request->error_status) { + case SNMP_ERR_NOSUCHINSTANCE: + case SNMP_ERR_NOSUCHOBJECT: + case SNMP_ERR_ENDOFMIBVIEW: + request->error_status = SNMP_ERR_NOTWRITABLE; + break; + default: + break; + } + } + + if (request->error_status >= SNMP_VARBIND_EXCEPTION_OFFSET) { + /* should never occur because v2 frames store exceptions directly inside varbinds and not as frame error_status */ + LWIP_DEBUGF(SNMP_DEBUG, ("snmp_complete_outbound_frame() > Found v2 request with varbind exception code stored as error status!\n")); + return ERR_ARG; + } + } + + if ((request->error_status != SNMP_ERR_NOERROR) || (request->request_type == SNMP_ASN1_CONTEXT_PDU_SET_REQ)) { + /* all inbound vars are returned in response without any modification for error responses and successful set requests*/ + struct snmp_pbuf_stream inbound_stream; + OF_BUILD_EXEC( snmp_pbuf_stream_init(&inbound_stream, request->inbound_pbuf, request->inbound_varbind_offset, request->inbound_varbind_len) ); + OF_BUILD_EXEC( snmp_pbuf_stream_init(&(request->outbound_pbuf_stream), request->outbound_pbuf, request->outbound_varbind_offset, request->outbound_pbuf->tot_len - request->outbound_varbind_offset) ); + OF_BUILD_EXEC( snmp_pbuf_stream_writeto(&inbound_stream, &(request->outbound_pbuf_stream), 0) ); + } + + frame_size = request->outbound_pbuf_stream.offset; + +#if LWIP_SNMP_V3 && LWIP_SNMP_V3_CRYPTO + /* Calculate padding for encryption */ + if (request->version == SNMP_VERSION_3 && (request->msg_flags & SNMP_V3_PRIV_FLAG)) { + u8_t i; + outbound_padding = (8 - (u8_t)((frame_size - request->outbound_scoped_pdu_seq_offset) & 0x07)) & 0x07; + for (i = 0; i < outbound_padding; i++) { + OF_BUILD_EXEC( snmp_pbuf_stream_write(&request->outbound_pbuf_stream, 0) ); + } + } +#endif + + /* complete missing length in 'Message' sequence ; 'Message' tlv is located at the beginning (offset 0) */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 3, frame_size + outbound_padding - 1 - 3); /* - type - length_len(fixed, see snmp_prepare_outbound_frame()) */ + OF_BUILD_EXEC( snmp_pbuf_stream_init(&(request->outbound_pbuf_stream), request->outbound_pbuf, 0, request->outbound_pbuf->tot_len) ); + OF_BUILD_EXEC( snmp_ans1_enc_tlv(&(request->outbound_pbuf_stream), &tlv) ); + +#if LWIP_SNMP_V3 + if (request->version == SNMP_VERSION_3) { + /* complete missing length in 'globalData' sequence */ + /* - type - length_len(fixed, see snmp_prepare_outbound_frame()) */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 1, request->outbound_msg_global_data_end + - request->outbound_msg_global_data_offset - 1 - 1); + OF_BUILD_EXEC(snmp_pbuf_stream_seek_abs(&(request->outbound_pbuf_stream), request->outbound_msg_global_data_offset)); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(&(request->outbound_pbuf_stream), &tlv)); + + /* complete missing length in 'msgSecurityParameters' sequence */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 1, request->outbound_msg_security_parameters_end + - request->outbound_msg_security_parameters_str_offset - 1 - 1); + OF_BUILD_EXEC(snmp_pbuf_stream_seek_abs(&(request->outbound_pbuf_stream), request->outbound_msg_security_parameters_str_offset)); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(&(request->outbound_pbuf_stream), &tlv)); + + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 1, request->outbound_msg_security_parameters_end + - request->outbound_msg_security_parameters_seq_offset - 1 - 1); + OF_BUILD_EXEC(snmp_pbuf_stream_seek_abs(&(request->outbound_pbuf_stream), request->outbound_msg_security_parameters_seq_offset)); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(&(request->outbound_pbuf_stream), &tlv)); + + /* complete missing length in scoped PDU sequence */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 3, frame_size - request->outbound_scoped_pdu_seq_offset - 1 - 3); + OF_BUILD_EXEC(snmp_pbuf_stream_seek_abs(&(request->outbound_pbuf_stream), request->outbound_scoped_pdu_seq_offset)); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(&(request->outbound_pbuf_stream), &tlv)); + } +#endif + + /* complete missing length in 'PDU' sequence */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, request->request_out_type, 3, + frame_size - request->outbound_pdu_offset - 1 - 3); /* - type - length_len(fixed, see snmp_prepare_outbound_frame()) */ + OF_BUILD_EXEC( snmp_pbuf_stream_seek_abs(&(request->outbound_pbuf_stream), request->outbound_pdu_offset) ); + OF_BUILD_EXEC( snmp_ans1_enc_tlv(&(request->outbound_pbuf_stream), &tlv) ); + + /* process and encode final error status */ + if (request->error_status != 0) { + u16_t len; + snmp_asn1_enc_s32t_cnt(request->error_status, &len); + if (len != 1) { + /* error, we only reserved one byte for it */ + return ERR_ARG; + } + OF_BUILD_EXEC( snmp_pbuf_stream_seek_abs(&(request->outbound_pbuf_stream), request->outbound_error_status_offset) ); + OF_BUILD_EXEC( snmp_asn1_enc_s32t(&(request->outbound_pbuf_stream), len, request->error_status) ); + + /* for compatibility to v1, log statistics; in v2 (RFC 1907) these statistics are obsoleted */ + switch (request->error_status) { + case SNMP_ERR_TOOBIG: + snmp_stats.outtoobigs++; + break; + case SNMP_ERR_NOSUCHNAME: + snmp_stats.outnosuchnames++; + break; + case SNMP_ERR_BADVALUE: + snmp_stats.outbadvalues++; + break; + case SNMP_ERR_GENERROR: + default: + snmp_stats.outgenerrs++; + break; + } + + if (request->error_status == SNMP_ERR_TOOBIG) { + request->error_index = 0; /* defined by RFC 1157 */ + } else if (request->error_index == 0) { + /* set index to varbind where error occurred (if not already set before, e.g. during GetBulk processing) */ + request->error_index = request->inbound_varbind_enumerator.varbind_count; + } + } else { + if (request->request_type == SNMP_ASN1_CONTEXT_PDU_SET_REQ) { + snmp_stats.intotalsetvars += request->inbound_varbind_enumerator.varbind_count; + } else { + snmp_stats.intotalreqvars += request->inbound_varbind_enumerator.varbind_count; + } + } + + /* encode final error index*/ + if (request->error_index != 0) { + u16_t len; + snmp_asn1_enc_s32t_cnt(request->error_index, &len); + if (len != 1) { + /* error, we only reserved one byte for it */ + return ERR_VAL; + } + OF_BUILD_EXEC( snmp_pbuf_stream_seek_abs(&(request->outbound_pbuf_stream), request->outbound_error_index_offset) ); + OF_BUILD_EXEC( snmp_asn1_enc_s32t(&(request->outbound_pbuf_stream), len, request->error_index) ); + } + + /* complete missing length in 'VarBindList' sequence ; 'VarBindList' tlv is located directly before varbind offset */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 3, frame_size - request->outbound_varbind_offset); + OF_BUILD_EXEC( snmp_pbuf_stream_seek_abs(&(request->outbound_pbuf_stream), request->outbound_varbind_offset - 1 - 3) ); /* - type - length_len(fixed, see snmp_prepare_outbound_frame()) */ + OF_BUILD_EXEC( snmp_ans1_enc_tlv(&(request->outbound_pbuf_stream), &tlv) ); + + /* Authenticate response */ +#if LWIP_SNMP_V3 && LWIP_SNMP_V3_CRYPTO + /* Encrypt response */ + if (request->version == SNMP_VERSION_3 && (request->msg_flags & SNMP_V3_PRIV_FLAG)) { + u8_t key[20]; + snmpv3_priv_algo_t algo; + + /* complete missing length in PDU sequence */ + OF_BUILD_EXEC(snmp_pbuf_stream_init(&request->outbound_pbuf_stream, request->outbound_pbuf, 0, request->outbound_pbuf->tot_len)); + OF_BUILD_EXEC(snmp_pbuf_stream_seek_abs(&(request->outbound_pbuf_stream), request->outbound_scoped_pdu_string_offset)); + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 3, frame_size + outbound_padding + - request->outbound_scoped_pdu_string_offset - 1 - 3); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(&(request->outbound_pbuf_stream), &tlv)); + + OF_BUILD_EXEC(snmpv3_get_user((char *)request->msg_user_name, NULL, NULL, &algo, key)); + + OF_BUILD_EXEC(snmpv3_crypt(&request->outbound_pbuf_stream, tlv.value_len, key, + request->msg_privacy_parameters, request->msg_authoritative_engine_boots, + request->msg_authoritative_engine_time, algo, SNMP_V3_PRIV_MODE_ENCRYPT)); + } + + if (request->version == SNMP_VERSION_3 && (request->msg_flags & SNMP_V3_AUTH_FLAG)) { + u8_t key[20]; + snmpv3_auth_algo_t algo; + u8_t hmac[20]; + + OF_BUILD_EXEC(snmpv3_get_user((char *)request->msg_user_name, &algo, key, NULL, NULL)); + OF_BUILD_EXEC(snmp_pbuf_stream_init(&(request->outbound_pbuf_stream), + request->outbound_pbuf, 0, request->outbound_pbuf->tot_len)); + OF_BUILD_EXEC(snmpv3_auth(&request->outbound_pbuf_stream, frame_size + outbound_padding, key, algo, hmac)); + + MEMCPY(request->msg_authentication_parameters, hmac, SNMP_V3_MAX_AUTH_PARAM_LENGTH); + OF_BUILD_EXEC(snmp_pbuf_stream_init(&request->outbound_pbuf_stream, + request->outbound_pbuf, 0, request->outbound_pbuf->tot_len)); + OF_BUILD_EXEC(snmp_pbuf_stream_seek_abs(&request->outbound_pbuf_stream, + request->outbound_msg_authentication_parameters_offset)); + + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 1, SNMP_V3_MAX_AUTH_PARAM_LENGTH); + OF_BUILD_EXEC(snmp_ans1_enc_tlv(&request->outbound_pbuf_stream, &tlv)); + OF_BUILD_EXEC(snmp_asn1_enc_raw(&request->outbound_pbuf_stream, + request->msg_authentication_parameters, SNMP_V3_MAX_AUTH_PARAM_LENGTH)); + } +#endif + + pbuf_realloc(request->outbound_pbuf, frame_size + outbound_padding); + + snmp_stats.outgetresponses++; + snmp_stats.outpkts++; + + return ERR_OK; +} + +static void +snmp_execute_write_callbacks(struct snmp_request *request) +{ + struct snmp_varbind_enumerator inbound_varbind_enumerator; + struct snmp_varbind vb; + + snmp_vb_enumerator_init(&inbound_varbind_enumerator, request->inbound_pbuf, request->inbound_varbind_offset, request->inbound_varbind_len); + vb.value = NULL; /* do NOT decode value (we enumerate outbound buffer here, so all varbinds have values assigned, which we don't need here) */ + + while (snmp_vb_enumerator_get_next(&inbound_varbind_enumerator, &vb) == SNMP_VB_ENUMERATOR_ERR_OK) { + snmp_write_callback(vb.oid.id, vb.oid.len, snmp_write_callback_arg); + } +} + + +/* ----------------------------------------------------------------------- */ +/* VarBind enumerator methods */ +/* ----------------------------------------------------------------------- */ + +void +snmp_vb_enumerator_init(struct snmp_varbind_enumerator *enumerator, struct pbuf *p, u16_t offset, u16_t length) +{ + snmp_pbuf_stream_init(&(enumerator->pbuf_stream), p, offset, length); + enumerator->varbind_count = 0; +} + +#define VB_PARSE_EXEC(code) PARSE_EXEC(code, SNMP_VB_ENUMERATOR_ERR_ASN1ERROR) +#define VB_PARSE_ASSERT(code) PARSE_ASSERT(code, SNMP_VB_ENUMERATOR_ERR_ASN1ERROR) + +snmp_vb_enumerator_err_t +snmp_vb_enumerator_get_next(struct snmp_varbind_enumerator *enumerator, struct snmp_varbind *varbind) +{ + struct snmp_asn1_tlv tlv; + u16_t varbind_len; + err_t err; + + if (enumerator->pbuf_stream.length == 0) { + return SNMP_VB_ENUMERATOR_ERR_EOVB; + } + enumerator->varbind_count++; + + /* decode varbind itself (parent container of a varbind) */ + VB_PARSE_EXEC(snmp_asn1_dec_tlv(&(enumerator->pbuf_stream), &tlv)); + VB_PARSE_ASSERT((tlv.type == SNMP_ASN1_TYPE_SEQUENCE) && (tlv.value_len <= enumerator->pbuf_stream.length)); + varbind_len = tlv.value_len; + + /* decode varbind name (object id) */ + VB_PARSE_EXEC(snmp_asn1_dec_tlv(&(enumerator->pbuf_stream), &tlv)); + VB_PARSE_ASSERT((tlv.type == SNMP_ASN1_TYPE_OBJECT_ID) && (SNMP_ASN1_TLV_LENGTH(tlv) < varbind_len) && (tlv.value_len < enumerator->pbuf_stream.length)); + + VB_PARSE_EXEC(snmp_asn1_dec_oid(&(enumerator->pbuf_stream), tlv.value_len, varbind->oid.id, &(varbind->oid.len), SNMP_MAX_OBJ_ID_LEN)); + varbind_len -= SNMP_ASN1_TLV_LENGTH(tlv); + + /* decode varbind value (object id) */ + VB_PARSE_EXEC(snmp_asn1_dec_tlv(&(enumerator->pbuf_stream), &tlv)); + VB_PARSE_ASSERT((SNMP_ASN1_TLV_LENGTH(tlv) == varbind_len) && (tlv.value_len <= enumerator->pbuf_stream.length)); + varbind->type = tlv.type; + + /* shall the value be decoded ? */ + if (varbind->value != NULL) { + switch (varbind->type) { + case SNMP_ASN1_TYPE_INTEGER: + VB_PARSE_EXEC(snmp_asn1_dec_s32t(&(enumerator->pbuf_stream), tlv.value_len, (s32_t *)varbind->value)); + varbind->value_len = sizeof(s32_t); + break; + case SNMP_ASN1_TYPE_COUNTER: + case SNMP_ASN1_TYPE_GAUGE: + case SNMP_ASN1_TYPE_TIMETICKS: + VB_PARSE_EXEC(snmp_asn1_dec_u32t(&(enumerator->pbuf_stream), tlv.value_len, (u32_t *)varbind->value)); + varbind->value_len = sizeof(u32_t); + break; + case SNMP_ASN1_TYPE_OCTET_STRING: + case SNMP_ASN1_TYPE_OPAQUE: + err = snmp_asn1_dec_raw(&(enumerator->pbuf_stream), tlv.value_len, (u8_t *)varbind->value, &varbind->value_len, SNMP_MAX_VALUE_SIZE); + if (err == ERR_MEM) { + return SNMP_VB_ENUMERATOR_ERR_INVALIDLENGTH; + } + VB_PARSE_ASSERT(err == ERR_OK); + break; + case SNMP_ASN1_TYPE_NULL: + varbind->value_len = 0; + break; + case SNMP_ASN1_TYPE_OBJECT_ID: + /* misuse tlv.length_len as OID_length transporter */ + err = snmp_asn1_dec_oid(&(enumerator->pbuf_stream), tlv.value_len, (u32_t *)varbind->value, &tlv.length_len, SNMP_MAX_OBJ_ID_LEN); + if (err == ERR_MEM) { + return SNMP_VB_ENUMERATOR_ERR_INVALIDLENGTH; + } + VB_PARSE_ASSERT(err == ERR_OK); + varbind->value_len = tlv.length_len * sizeof(u32_t); + break; + case SNMP_ASN1_TYPE_IPADDR: + if (tlv.value_len == 4) { + /* must be exactly 4 octets! */ + VB_PARSE_EXEC(snmp_asn1_dec_raw(&(enumerator->pbuf_stream), tlv.value_len, (u8_t *)varbind->value, &varbind->value_len, SNMP_MAX_VALUE_SIZE)); + } else { + VB_PARSE_ASSERT(0); + } + break; +#if LWIP_HAVE_INT64 + case SNMP_ASN1_TYPE_COUNTER64: + VB_PARSE_EXEC(snmp_asn1_dec_u64t(&(enumerator->pbuf_stream), tlv.value_len, (u64_t *)varbind->value)); + varbind->value_len = sizeof(u64_t); + break; +#endif + default: + VB_PARSE_ASSERT(0); + break; + } + } else { + snmp_pbuf_stream_seek(&(enumerator->pbuf_stream), tlv.value_len); + varbind->value_len = tlv.value_len; + } + + return SNMP_VB_ENUMERATOR_ERR_OK; +} + +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_msg.h b/middleware/lwip/src/apps/snmp/snmp_msg.h new file mode 100644 index 0000000..903f08a --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_msg.h @@ -0,0 +1,185 @@ +/** + * @file + * SNMP Agent message handling structures (internal API, do not use in client code). + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * Copyright (c) 2016 Elias Oenal. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Christiaan Simons + * Martin Hentschel + * Elias Oenal + */ + +#ifndef LWIP_HDR_APPS_SNMP_MSG_H +#define LWIP_HDR_APPS_SNMP_MSG_H + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP + +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "snmp_pbuf_stream.h" +#include "lwip/ip_addr.h" +#include "lwip/err.h" + +#if LWIP_SNMP_V3 +#include "snmpv3_priv.h" +#endif + + +#ifdef __cplusplus +extern "C" { +#endif + +/* version defines used in PDU */ +#define SNMP_VERSION_1 0 +#define SNMP_VERSION_2c 1 +#define SNMP_VERSION_3 3 + +struct snmp_varbind_enumerator { + struct snmp_pbuf_stream pbuf_stream; + u16_t varbind_count; +}; + +typedef enum { + SNMP_VB_ENUMERATOR_ERR_OK = 0, + SNMP_VB_ENUMERATOR_ERR_EOVB = 1, + SNMP_VB_ENUMERATOR_ERR_ASN1ERROR = 2, + SNMP_VB_ENUMERATOR_ERR_INVALIDLENGTH = 3 +} snmp_vb_enumerator_err_t; + +void snmp_vb_enumerator_init(struct snmp_varbind_enumerator *enumerator, struct pbuf *p, u16_t offset, u16_t length); +snmp_vb_enumerator_err_t snmp_vb_enumerator_get_next(struct snmp_varbind_enumerator *enumerator, struct snmp_varbind *varbind); + +struct snmp_request { + /* Communication handle */ + void *handle; + /* source IP address */ + const ip_addr_t *source_ip; + /* source UDP port */ + u16_t source_port; + /* incoming snmp version */ + u8_t version; + /* community name (zero terminated) */ + u8_t community[SNMP_MAX_COMMUNITY_STR_LEN + 1]; + /* community string length (exclusive zero term) */ + u16_t community_strlen; + /* request type */ + u8_t request_type; + /* request ID */ + s32_t request_id; + /* error status */ + s32_t error_status; + /* error index */ + s32_t error_index; + /* non-repeaters (getBulkRequest (SNMPv2c)) */ + s32_t non_repeaters; + /* max-repetitions (getBulkRequest (SNMPv2c)) */ + s32_t max_repetitions; + + /* Usually response-pdu (2). When snmpv3 errors are detected report-pdu(8) */ + u8_t request_out_type; + +#if LWIP_SNMP_V3 + s32_t msg_id; + s32_t msg_max_size; + u8_t msg_flags; + s32_t msg_security_model; + u8_t msg_authoritative_engine_id[SNMP_V3_MAX_ENGINE_ID_LENGTH]; + u8_t msg_authoritative_engine_id_len; + s32_t msg_authoritative_engine_boots; + s32_t msg_authoritative_engine_time; + u8_t msg_user_name[SNMP_V3_MAX_USER_LENGTH]; + u8_t msg_user_name_len; + u8_t msg_authentication_parameters[SNMP_V3_MAX_AUTH_PARAM_LENGTH]; + u8_t msg_authentication_parameters_len; + u8_t msg_privacy_parameters[SNMP_V3_MAX_PRIV_PARAM_LENGTH]; + u8_t msg_privacy_parameters_len; + u8_t context_engine_id[SNMP_V3_MAX_ENGINE_ID_LENGTH]; + u8_t context_engine_id_len; + u8_t context_name[SNMP_V3_MAX_ENGINE_ID_LENGTH]; + u8_t context_name_len; +#endif + + struct pbuf *inbound_pbuf; + struct snmp_varbind_enumerator inbound_varbind_enumerator; + u16_t inbound_varbind_offset; + u16_t inbound_varbind_len; + u16_t inbound_padding_len; + + struct pbuf *outbound_pbuf; + struct snmp_pbuf_stream outbound_pbuf_stream; + u16_t outbound_pdu_offset; + u16_t outbound_error_status_offset; + u16_t outbound_error_index_offset; + u16_t outbound_varbind_offset; +#if LWIP_SNMP_V3 + u16_t outbound_msg_global_data_offset; + u16_t outbound_msg_global_data_end; + u16_t outbound_msg_security_parameters_str_offset; + u16_t outbound_msg_security_parameters_seq_offset; + u16_t outbound_msg_security_parameters_end; + u16_t outbound_msg_authentication_parameters_offset; + u16_t outbound_scoped_pdu_seq_offset; + u16_t outbound_scoped_pdu_string_offset; +#endif + + u8_t value_buffer[SNMP_MAX_VALUE_SIZE]; +}; + +/** A helper struct keeping length information about varbinds */ +struct snmp_varbind_len { + u8_t vb_len_len; + u16_t vb_value_len; + u8_t oid_len_len; + u16_t oid_value_len; + u8_t value_len_len; + u16_t value_value_len; +}; + +/** Agent community string */ +extern const char *snmp_community; +/** Agent community string for write access */ +extern const char *snmp_community_write; +/** handle for sending traps */ +extern void *snmp_traps_handle; + +void snmp_receive(void *handle, struct pbuf *p, const ip_addr_t *source_ip, u16_t port); +err_t snmp_sendto(void *handle, struct pbuf *p, const ip_addr_t *dst, u16_t port); +u8_t snmp_get_local_ip_for_dst(void *handle, const ip_addr_t *dst, ip_addr_t *result); +err_t snmp_varbind_length(struct snmp_varbind *varbind, struct snmp_varbind_len *len); +err_t snmp_append_outbound_varbind(struct snmp_pbuf_stream *pbuf_stream, struct snmp_varbind *varbind); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_SNMP */ + +#endif /* LWIP_HDR_APPS_SNMP_MSG_H */ diff --git a/middleware/lwip/src/apps/snmp/snmp_netconn.c b/middleware/lwip/src/apps/snmp/snmp_netconn.c new file mode 100644 index 0000000..8850acb --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_netconn.c @@ -0,0 +1,123 @@ +/** + * @file + * SNMP netconn frontend. + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + */ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP && SNMP_USE_NETCONN + +#include +#include "lwip/api.h" +#include "lwip/ip.h" +#include "lwip/udp.h" +#include "snmp_msg.h" +#include "lwip/sys.h" +#include "lwip/prot/iana.h" + +/** SNMP netconn API worker thread */ +static void +snmp_netconn_thread(void *arg) +{ + struct netconn *conn; + struct netbuf *buf; + err_t err; + LWIP_UNUSED_ARG(arg); + + /* Bind to SNMP port with default IP address */ +#if LWIP_IPV6 + conn = netconn_new(NETCONN_UDP_IPV6); + netconn_bind(conn, IP6_ADDR_ANY, LWIP_IANA_PORT_SNMP); +#else /* LWIP_IPV6 */ + conn = netconn_new(NETCONN_UDP); + netconn_bind(conn, IP4_ADDR_ANY, LWIP_IANA_PORT_SNMP); +#endif /* LWIP_IPV6 */ + LWIP_ERROR("snmp_netconn: invalid conn", (conn != NULL), return;); + + snmp_traps_handle = conn; + + do { + err = netconn_recv(conn, &buf); + + if (err == ERR_OK) { + snmp_receive(conn, buf->p, &buf->addr, buf->port); + } + + if (buf != NULL) { + netbuf_delete(buf); + } + } while (1); +} + +err_t +snmp_sendto(void *handle, struct pbuf *p, const ip_addr_t *dst, u16_t port) +{ + err_t result; + struct netbuf buf; + + memset(&buf, 0, sizeof(buf)); + buf.p = p; + result = netconn_sendto((struct netconn *)handle, &buf, dst, port); + + return result; +} + +u8_t +snmp_get_local_ip_for_dst(void *handle, const ip_addr_t *dst, ip_addr_t *result) +{ + struct netconn *conn = (struct netconn *)handle; + struct netif *dst_if; + const ip_addr_t *dst_ip; + + LWIP_UNUSED_ARG(conn); /* unused in case of IPV4 only configuration */ + + ip_route_get_local_ip(&conn->pcb.udp->local_ip, dst, dst_if, dst_ip); + + if ((dst_if != NULL) && (dst_ip != NULL)) { + ip_addr_copy(*result, *dst_ip); + return 1; + } else { + return 0; + } +} + +/** + * Starts SNMP Agent. + */ +void +snmp_init(void) +{ + LWIP_ASSERT_CORE_LOCKED(); + sys_thread_new("snmp_netconn", snmp_netconn_thread, NULL, SNMP_STACK_SIZE, SNMP_THREAD_PRIO); +} + +#endif /* LWIP_SNMP && SNMP_USE_NETCONN */ diff --git a/middleware/lwip/src/apps/snmp/snmp_pbuf_stream.c b/middleware/lwip/src/apps/snmp/snmp_pbuf_stream.c new file mode 100644 index 0000000..a6e319c --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_pbuf_stream.c @@ -0,0 +1,156 @@ +/** + * @file + * SNMP pbuf stream wrapper implementation (internal API, do not use in client code). + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Martin Hentschel + * + */ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include "snmp_pbuf_stream.h" +#include "lwip/def.h" +#include + +err_t +snmp_pbuf_stream_init(struct snmp_pbuf_stream *pbuf_stream, struct pbuf *p, u16_t offset, u16_t length) +{ + pbuf_stream->offset = offset; + pbuf_stream->length = length; + pbuf_stream->pbuf = p; + + return ERR_OK; +} + +err_t +snmp_pbuf_stream_read(struct snmp_pbuf_stream *pbuf_stream, u8_t *data) +{ + if (pbuf_stream->length == 0) { + return ERR_BUF; + } + + if (pbuf_copy_partial(pbuf_stream->pbuf, data, 1, pbuf_stream->offset) == 0) { + return ERR_BUF; + } + + pbuf_stream->offset++; + pbuf_stream->length--; + + return ERR_OK; +} + +err_t +snmp_pbuf_stream_write(struct snmp_pbuf_stream *pbuf_stream, u8_t data) +{ + return snmp_pbuf_stream_writebuf(pbuf_stream, &data, 1); +} + +err_t +snmp_pbuf_stream_writebuf(struct snmp_pbuf_stream *pbuf_stream, const void *buf, u16_t buf_len) +{ + if (pbuf_stream->length < buf_len) { + return ERR_BUF; + } + + if (pbuf_take_at(pbuf_stream->pbuf, buf, buf_len, pbuf_stream->offset) != ERR_OK) { + return ERR_BUF; + } + + pbuf_stream->offset += buf_len; + pbuf_stream->length -= buf_len; + + return ERR_OK; +} + +err_t +snmp_pbuf_stream_writeto(struct snmp_pbuf_stream *pbuf_stream, struct snmp_pbuf_stream *target_pbuf_stream, u16_t len) +{ + + if ((pbuf_stream == NULL) || (target_pbuf_stream == NULL)) { + return ERR_ARG; + } + if ((len > pbuf_stream->length) || (len > target_pbuf_stream->length)) { + return ERR_ARG; + } + + if (len == 0) { + len = LWIP_MIN(pbuf_stream->length, target_pbuf_stream->length); + } + + while (len > 0) { + u16_t chunk_len; + err_t err; + u16_t target_offset; + struct pbuf *pbuf = pbuf_skip(pbuf_stream->pbuf, pbuf_stream->offset, &target_offset); + + if ((pbuf == NULL) || (pbuf->len == 0)) { + return ERR_BUF; + } + + chunk_len = LWIP_MIN(len, pbuf->len); + err = snmp_pbuf_stream_writebuf(target_pbuf_stream, &((u8_t *)pbuf->payload)[target_offset], chunk_len); + if (err != ERR_OK) { + return err; + } + + pbuf_stream->offset += chunk_len; + pbuf_stream->length -= chunk_len; + len -= chunk_len; + } + + return ERR_OK; +} + +err_t +snmp_pbuf_stream_seek(struct snmp_pbuf_stream *pbuf_stream, s32_t offset) +{ + if (((pbuf_stream->offset + offset) < 0) || (offset > pbuf_stream->length)) { + /* we cannot seek backwards or forward behind stream end */ + return ERR_ARG; + } + + pbuf_stream->offset += (u16_t)offset; + pbuf_stream->length -= (u16_t)offset; + + return ERR_OK; +} + +err_t +snmp_pbuf_stream_seek_abs(struct snmp_pbuf_stream *pbuf_stream, u32_t offset) +{ + s32_t rel_offset = offset - pbuf_stream->offset; + return snmp_pbuf_stream_seek(pbuf_stream, rel_offset); +} + +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_pbuf_stream.h b/middleware/lwip/src/apps/snmp/snmp_pbuf_stream.h new file mode 100644 index 0000000..682713f --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_pbuf_stream.h @@ -0,0 +1,72 @@ +/** + * @file + * SNMP pbuf stream wrapper (internal API, do not use in client code). + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Martin Hentschel + * + */ + +#ifndef LWIP_HDR_APPS_SNMP_PBUF_STREAM_H +#define LWIP_HDR_APPS_SNMP_PBUF_STREAM_H + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP + +#include "lwip/err.h" +#include "lwip/pbuf.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct snmp_pbuf_stream { + struct pbuf *pbuf; + u16_t offset; + u16_t length; +}; + +err_t snmp_pbuf_stream_init(struct snmp_pbuf_stream *pbuf_stream, struct pbuf *p, u16_t offset, u16_t length); +err_t snmp_pbuf_stream_read(struct snmp_pbuf_stream *pbuf_stream, u8_t *data); +err_t snmp_pbuf_stream_write(struct snmp_pbuf_stream *pbuf_stream, u8_t data); +err_t snmp_pbuf_stream_writebuf(struct snmp_pbuf_stream *pbuf_stream, const void *buf, u16_t buf_len); +err_t snmp_pbuf_stream_writeto(struct snmp_pbuf_stream *pbuf_stream, struct snmp_pbuf_stream *target_pbuf_stream, u16_t len); +err_t snmp_pbuf_stream_seek(struct snmp_pbuf_stream *pbuf_stream, s32_t offset); +err_t snmp_pbuf_stream_seek_abs(struct snmp_pbuf_stream *pbuf_stream, u32_t offset); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_SNMP */ + +#endif /* LWIP_HDR_APPS_SNMP_PBUF_STREAM_H */ diff --git a/middleware/lwip/src/apps/snmp/snmp_raw.c b/middleware/lwip/src/apps/snmp/snmp_raw.c new file mode 100644 index 0000000..e203cb6 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_raw.c @@ -0,0 +1,103 @@ +/** + * @file + * SNMP RAW API frontend. + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + */ + +#include "lwip/apps/snmp_opts.h" +#include "lwip/ip_addr.h" + +#if LWIP_SNMP && SNMP_USE_RAW + +#include "lwip/udp.h" +#include "lwip/ip.h" +#include "lwip/prot/iana.h" +#include "snmp_msg.h" + +/* lwIP UDP receive callback function */ +static void +snmp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) +{ + LWIP_UNUSED_ARG(arg); + + snmp_receive(pcb, p, addr, port); + + pbuf_free(p); +} + +err_t +snmp_sendto(void *handle, struct pbuf *p, const ip_addr_t *dst, u16_t port) +{ + return udp_sendto((struct udp_pcb *)handle, p, dst, port); +} + +u8_t +snmp_get_local_ip_for_dst(void *handle, const ip_addr_t *dst, ip_addr_t *result) +{ + struct udp_pcb *udp_pcb = (struct udp_pcb *)handle; + struct netif *dst_if; + const ip_addr_t *dst_ip; + + LWIP_UNUSED_ARG(udp_pcb); /* unused in case of IPV4 only configuration */ + + ip_route_get_local_ip(&udp_pcb->local_ip, dst, dst_if, dst_ip); + + if ((dst_if != NULL) && (dst_ip != NULL)) { + ip_addr_copy(*result, *dst_ip); + return 1; + } else { + return 0; + } +} + +/** + * @ingroup snmp_core + * Starts SNMP Agent. + * Allocates UDP pcb and binds it to IP_ANY_TYPE port 161. + */ +void +snmp_init(void) +{ + err_t err; + + struct udp_pcb *snmp_pcb = udp_new_ip_type(IPADDR_TYPE_ANY); + LWIP_ERROR("snmp_raw: no PCB", (snmp_pcb != NULL), return;); + + LWIP_ASSERT_CORE_LOCKED(); + + snmp_traps_handle = snmp_pcb; + + udp_recv(snmp_pcb, snmp_recv, NULL); + err = udp_bind(snmp_pcb, IP_ANY_TYPE, LWIP_IANA_PORT_SNMP); + LWIP_ERROR("snmp_raw: Unable to bind PCB", (err == ERR_OK), return;); +} + +#endif /* LWIP_SNMP && SNMP_USE_RAW */ diff --git a/middleware/lwip/src/apps/snmp/snmp_scalar.c b/middleware/lwip/src/apps/snmp/snmp_scalar.c new file mode 100644 index 0000000..094f52f --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_scalar.c @@ -0,0 +1,232 @@ +/** + * @file + * SNMP scalar node support implementation. + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Martin Hentschel + * + */ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/apps/snmp_scalar.h" +#include "lwip/apps/snmp_core.h" + +static s16_t snmp_scalar_array_get_value(struct snmp_node_instance *instance, void *value); +static snmp_err_t snmp_scalar_array_set_test(struct snmp_node_instance *instance, u16_t value_len, void *value); +static snmp_err_t snmp_scalar_array_set_value(struct snmp_node_instance *instance, u16_t value_len, void *value); + +snmp_err_t +snmp_scalar_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance) +{ + const struct snmp_scalar_node *scalar_node = (const struct snmp_scalar_node *)(const void *)instance->node; + + LWIP_UNUSED_ARG(root_oid); + LWIP_UNUSED_ARG(root_oid_len); + + /* scalar only has one dedicated instance: .0 */ + if ((instance->instance_oid.len != 1) || (instance->instance_oid.id[0] != 0)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + instance->access = scalar_node->access; + instance->asn1_type = scalar_node->asn1_type; + instance->get_value = scalar_node->get_value; + instance->set_test = scalar_node->set_test; + instance->set_value = scalar_node->set_value; + return SNMP_ERR_NOERROR; +} + +snmp_err_t +snmp_scalar_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance) +{ + /* because our only instance is .0 we can only return a next instance if no instance oid is passed */ + if (instance->instance_oid.len == 0) { + instance->instance_oid.len = 1; + instance->instance_oid.id[0] = 0; + + return snmp_scalar_get_instance(root_oid, root_oid_len, instance); + } + + return SNMP_ERR_NOSUCHINSTANCE; +} + + +snmp_err_t +snmp_scalar_array_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance) +{ + LWIP_UNUSED_ARG(root_oid); + LWIP_UNUSED_ARG(root_oid_len); + + if ((instance->instance_oid.len == 2) && (instance->instance_oid.id[1] == 0)) { + const struct snmp_scalar_array_node *array_node = (const struct snmp_scalar_array_node *)(const void *)instance->node; + const struct snmp_scalar_array_node_def *array_node_def = array_node->array_nodes; + u32_t i = 0; + + while (i < array_node->array_node_count) { + if (array_node_def->oid == instance->instance_oid.id[0]) { + break; + } + + array_node_def++; + i++; + } + + if (i < array_node->array_node_count) { + instance->access = array_node_def->access; + instance->asn1_type = array_node_def->asn1_type; + instance->get_value = snmp_scalar_array_get_value; + instance->set_test = snmp_scalar_array_set_test; + instance->set_value = snmp_scalar_array_set_value; + instance->reference.const_ptr = array_node_def; + + return SNMP_ERR_NOERROR; + } + } + + return SNMP_ERR_NOSUCHINSTANCE; +} + +snmp_err_t +snmp_scalar_array_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance) +{ + const struct snmp_scalar_array_node *array_node = (const struct snmp_scalar_array_node *)(const void *)instance->node; + const struct snmp_scalar_array_node_def *array_node_def = array_node->array_nodes; + const struct snmp_scalar_array_node_def *result = NULL; + + LWIP_UNUSED_ARG(root_oid); + LWIP_UNUSED_ARG(root_oid_len); + + if ((instance->instance_oid.len == 0) && (array_node->array_node_count > 0)) { + /* return node with lowest OID */ + u16_t i = 0; + + result = array_node_def; + array_node_def++; + + for (i = 1; i < array_node->array_node_count; i++) { + if (array_node_def->oid < result->oid) { + result = array_node_def; + } + array_node_def++; + } + } else if (instance->instance_oid.len >= 1) { + if (instance->instance_oid.len == 1) { + /* if we have the requested OID we return its instance, otherwise we search for the next available */ + u16_t i = 0; + while (i < array_node->array_node_count) { + if (array_node_def->oid == instance->instance_oid.id[0]) { + result = array_node_def; + break; + } + + array_node_def++; + i++; + } + } + if (result == NULL) { + u32_t oid_dist = 0xFFFFFFFFUL; + u16_t i = 0; + array_node_def = array_node->array_nodes; /* may be already at the end when if case before was executed without result -> reinitialize to start */ + while (i < array_node->array_node_count) { + if ((array_node_def->oid > instance->instance_oid.id[0]) && + ((u32_t)(array_node_def->oid - instance->instance_oid.id[0]) < oid_dist)) { + result = array_node_def; + oid_dist = array_node_def->oid - instance->instance_oid.id[0]; + } + + array_node_def++; + i++; + } + } + } + + if (result == NULL) { + /* nothing to return */ + return SNMP_ERR_NOSUCHINSTANCE; + } + + instance->instance_oid.len = 2; + instance->instance_oid.id[0] = result->oid; + instance->instance_oid.id[1] = 0; + + instance->access = result->access; + instance->asn1_type = result->asn1_type; + instance->get_value = snmp_scalar_array_get_value; + instance->set_test = snmp_scalar_array_set_test; + instance->set_value = snmp_scalar_array_set_value; + instance->reference.const_ptr = result; + + return SNMP_ERR_NOERROR; +} + +static s16_t +snmp_scalar_array_get_value(struct snmp_node_instance *instance, void *value) +{ + s16_t result = -1; + const struct snmp_scalar_array_node *array_node = (const struct snmp_scalar_array_node *)(const void *)instance->node; + const struct snmp_scalar_array_node_def *array_node_def = (const struct snmp_scalar_array_node_def *)instance->reference.const_ptr; + + if (array_node->get_value != NULL) { + result = array_node->get_value(array_node_def, value); + } + return result; +} + +static snmp_err_t +snmp_scalar_array_set_test(struct snmp_node_instance *instance, u16_t value_len, void *value) +{ + snmp_err_t result = SNMP_ERR_NOTWRITABLE; + const struct snmp_scalar_array_node *array_node = (const struct snmp_scalar_array_node *)(const void *)instance->node; + const struct snmp_scalar_array_node_def *array_node_def = (const struct snmp_scalar_array_node_def *)instance->reference.const_ptr; + + if (array_node->set_test != NULL) { + result = array_node->set_test(array_node_def, value_len, value); + } + return result; +} + +static snmp_err_t +snmp_scalar_array_set_value(struct snmp_node_instance *instance, u16_t value_len, void *value) +{ + snmp_err_t result = SNMP_ERR_NOTWRITABLE; + const struct snmp_scalar_array_node *array_node = (const struct snmp_scalar_array_node *)(const void *)instance->node; + const struct snmp_scalar_array_node_def *array_node_def = (const struct snmp_scalar_array_node_def *)instance->reference.const_ptr; + + if (array_node->set_value != NULL) { + result = array_node->set_value(array_node_def, value_len, value); + } + return result; +} + +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_snmpv2_framework.c b/middleware/lwip/src/apps/snmp/snmp_snmpv2_framework.c new file mode 100644 index 0000000..a5611db --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_snmpv2_framework.c @@ -0,0 +1,90 @@ +/* +Generated by LwipMibCompiler +*/ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP && LWIP_SNMP_V3 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/apps/snmp_snmpv2_framework.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_scalar.h" +#include "lwip/apps/snmp_table.h" +#include "lwip/apps/snmpv3.h" +#include "snmpv3_priv.h" + +#include "lwip/sys.h" + +#include + +const struct snmp_obj_id usmNoAuthProtocol = { 10, { 1, 3, 6, 1, 6, 3, 10, 1, 1, 1 } }; +const struct snmp_obj_id usmHMACMD5AuthProtocol = { 10, { 1, 3, 6, 1, 6, 3, 10, 1, 1, 2 } }; +const struct snmp_obj_id usmHMACSHAAuthProtocol = { 10, { 1, 3, 6, 1, 6, 3, 10, 1, 1, 3 } }; +/* .4 sha-224 + * .5 sha-256 + * .6 sha-384 + * .7 sha-512 + */ + +const struct snmp_obj_id usmNoPrivProtocol = { 10, { 1, 3, 6, 1, 6, 3, 10, 1, 2, 1 } }; +const struct snmp_obj_id usmDESPrivProtocol = { 10, { 1, 3, 6, 1, 6, 3, 10, 1, 2, 2 } }; +/* .3 3des-ede */ +const struct snmp_obj_id usmAESPrivProtocol = { 10, { 1, 3, 6, 1, 6, 3, 10, 1, 2, 4 } }; +/* .5 unknown + * .6 unknown + * .7 unknown + */ + +/* TODO: where should this value come from? */ +#define SNMP_FRAMEWORKMIB_SNMPENGINEMAXMESSAGESIZE 1500 + +/* --- snmpFrameworkMIBObjects 1.3.6.1.6.3.10.2 ----------------------------------------------------- */ +static s16_t snmpengine_scalars_get_value(const struct snmp_scalar_array_node_def *node, void *value) +{ + const char *engineid; + u8_t engineid_len; + + switch (node->oid) { + case 1: /* snmpEngineID */ + snmpv3_get_engine_id(&engineid, &engineid_len); + MEMCPY(value, engineid, engineid_len); + return engineid_len; + case 2: /* snmpEngineBoots */ + *(s32_t *)value = snmpv3_get_engine_boots_internal(); + return sizeof(s32_t); + case 3: /* snmpEngineTime */ + *(s32_t *)value = snmpv3_get_engine_time_internal(); + return sizeof(s32_t); + case 4: /* snmpEngineMaxMessageSize */ + *(s32_t *)value = SNMP_FRAMEWORKMIB_SNMPENGINEMAXMESSAGESIZE; + return sizeof(s32_t); + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("snmpengine_scalars_get_value(): unknown id: %"S32_F"\n", node->oid)); + return 0; + } +} + +static const struct snmp_scalar_array_node_def snmpengine_scalars_nodes[] = { + {1, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpEngineID */ + {2, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpEngineBoots */ + {3, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpEngineTime */ + {4, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpEngineMaxMessageSize */ +}; +static const struct snmp_scalar_array_node snmpengine_scalars = SNMP_SCALAR_CREATE_ARRAY_NODE(1, snmpengine_scalars_nodes, snmpengine_scalars_get_value, NULL, NULL); + +static const struct snmp_node *const snmpframeworkmibobjects_subnodes[] = { + &snmpengine_scalars.node.node +}; +static const struct snmp_tree_node snmpframeworkmibobjects_treenode = SNMP_CREATE_TREE_NODE(2, snmpframeworkmibobjects_subnodes); + +/* --- snmpFrameworkMIB ----------------------------------------------------- */ +static const struct snmp_node *const snmpframeworkmib_subnodes[] = { + &snmpframeworkmibobjects_treenode.node +}; +static const struct snmp_tree_node snmpframeworkmib_root = SNMP_CREATE_TREE_NODE(10, snmpframeworkmib_subnodes); +static const u32_t snmpframeworkmib_base_oid[] = {1, 3, 6, 1, 6, 3, 10}; +const struct snmp_mib snmpframeworkmib = {snmpframeworkmib_base_oid, LWIP_ARRAYSIZE(snmpframeworkmib_base_oid), &snmpframeworkmib_root.node}; + +/* --- snmpFrameworkMIB ----------------------------------------------------- */ +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_snmpv2_usm.c b/middleware/lwip/src/apps/snmp/snmp_snmpv2_usm.c new file mode 100644 index 0000000..7490c9c --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_snmpv2_usm.c @@ -0,0 +1,410 @@ +/* +Generated by LwipMibCompiler +*/ + +#include "lwip/apps/snmp_opts.h" +#if LWIP_SNMP && LWIP_SNMP_V3 + +#include "lwip/apps/snmp_snmpv2_usm.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_scalar.h" +#include "lwip/apps/snmp_table.h" +#include "lwip/apps/snmpv3.h" +#include "snmpv3_priv.h" + +#include "lwip/apps/snmp_snmpv2_framework.h" + +#include + +/* --- usmUser 1.3.6.1.6.3.15.1.2 ----------------------------------------------------- */ + +static const struct snmp_oid_range usmUserTable_oid_ranges[] = { + { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, + { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, + { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, + { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, + { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, + { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, + { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, + { 0, 0xff }, { 0, 0xff }, { 0, 0xff }, { 0, 0xff } +}; + +static void snmp_engineid_to_oid(const char *engineid, u32_t *oid, u32_t len) +{ + u8_t i; + + for (i = 0; i < len; i++) { + oid[i] = engineid[i]; + } +} + +static void snmp_oid_to_name(char *name, const u32_t *oid, size_t len) +{ + u8_t i; + + for (i = 0; i < len; i++) { + name[i] = (char)oid[i]; + } +} + +static void snmp_name_to_oid(const char *name, u32_t *oid, size_t len) +{ + u8_t i; + + for (i = 0; i < len; i++) { + oid[i] = name[i]; + } +} + +static const struct snmp_obj_id *snmp_auth_algo_to_oid(snmpv3_auth_algo_t algo) +{ + if (algo == SNMP_V3_AUTH_ALGO_MD5) { + return &usmHMACMD5AuthProtocol; + } else if (algo == SNMP_V3_AUTH_ALGO_SHA) { + return &usmHMACMD5AuthProtocol; + } + + return &usmNoAuthProtocol; +} + +static const struct snmp_obj_id *snmp_priv_algo_to_oid(snmpv3_priv_algo_t algo) +{ + if (algo == SNMP_V3_PRIV_ALGO_DES) { + return &usmDESPrivProtocol; + } else if (algo == SNMP_V3_PRIV_ALGO_AES) { + return &usmAESPrivProtocol; + } + + return &usmNoPrivProtocol; +} + +char username[32]; + +static snmp_err_t usmusertable_get_instance(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, struct snmp_node_instance *cell_instance) +{ + const char *engineid; + u8_t eid_len; + + u32_t engineid_oid[SNMP_V3_MAX_ENGINE_ID_LENGTH]; + + u8_t name_len; + u8_t engineid_len; + + u8_t name_start; + u8_t engineid_start; + + LWIP_UNUSED_ARG(column); + + snmpv3_get_engine_id(&engineid, &eid_len); + + engineid_len = (u8_t)row_oid[0]; + engineid_start = 1; + + if (engineid_len != eid_len) { + /* EngineID length does not match! */ + return SNMP_ERR_NOSUCHINSTANCE; + } + + if (engineid_len > row_oid_len) { + /* row OID doesn't contain enough data according to engineid_len.*/ + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* check if incoming OID length and if values are in plausible range */ + if (!snmp_oid_in_range(&row_oid[engineid_start], engineid_len, usmUserTable_oid_ranges, engineid_len)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + snmp_engineid_to_oid(engineid, engineid_oid, engineid_len); + + /* Verify EngineID */ + if (snmp_oid_equal(&row_oid[engineid_start], engineid_len, engineid_oid, engineid_len)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + name_len = (u8_t)row_oid[engineid_start + engineid_len]; + name_start = engineid_start + engineid_len + 1; + + if (name_len > SNMP_V3_MAX_USER_LENGTH) { + /* specified name is too long */ + return SNMP_ERR_NOSUCHINSTANCE; + } + + if (1 + engineid_len + 1 + name_len != row_oid_len) { + /* Length of EngineID and name does not match row oid length. (+2 for length fields)*/ + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* check if incoming OID length and if values are in plausible range */ + if (!snmp_oid_in_range(&row_oid[name_start], name_len, usmUserTable_oid_ranges, name_len)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* Verify if user exists */ + memset(username, 0, sizeof(username)); + snmp_oid_to_name(username, &row_oid[name_start], name_len); + if (snmpv3_get_user(username, NULL, NULL, NULL, NULL) != ERR_OK) { + return SNMP_ERR_NOSUCHINSTANCE; + } + + /* Save name in reference pointer to make it easier to handle later on */ + cell_instance->reference.ptr = username; + cell_instance->reference_len = name_len; + + /* user was found */ + return SNMP_ERR_NOERROR; +} + +/* + * valid oid options + * + * . + * .. + * .. + * ... + * .... + * .... + * + */ +static snmp_err_t usmusertable_get_next_instance(const u32_t *column, struct snmp_obj_id *row_oid, struct snmp_node_instance *cell_instance) +{ + const char *engineid; + u8_t eid_len; + + u32_t engineid_oid[SNMP_V3_MAX_ENGINE_ID_LENGTH]; + + u8_t name_len; + u8_t engineid_len; + + u8_t name_start; + u8_t engineid_start = 1; + u8_t i; + + struct snmp_next_oid_state state; + + u32_t result_temp[LWIP_ARRAYSIZE(usmUserTable_oid_ranges)]; + + LWIP_UNUSED_ARG(column); + + snmpv3_get_engine_id(&engineid, &eid_len); + + /* If EngineID might be given */ + if (row_oid->len > 0) { + engineid_len = (u8_t)row_oid->id[0]; + engineid_start = 1; + + if (engineid_len != eid_len) { + /* EngineID length does not match! */ + return SNMP_ERR_NOSUCHINSTANCE; + } + + if (engineid_len > row_oid->len) { + /* Verify partial EngineID */ + snmp_engineid_to_oid(engineid, engineid_oid, row_oid->len - 1); + if (!snmp_oid_equal(&row_oid->id[engineid_start], row_oid->len - 1, engineid_oid, row_oid->len - 1)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + } else { + /* Verify complete EngineID */ + snmp_engineid_to_oid(engineid, engineid_oid, engineid_len); + if (!snmp_oid_equal(&row_oid->id[engineid_start], engineid_len, engineid_oid, engineid_len)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + } + + /* At this point, the given EngineID (partially) matches the local EngineID.*/ + + /* If name might also be given */ + if (row_oid->len > engineid_start + engineid_len) { + name_len = (u8_t)row_oid->id[engineid_start + engineid_len]; + name_start = engineid_start + engineid_len + 1; + + if (name_len > SNMP_V3_MAX_USER_LENGTH) { + /* specified name is too long, max length is 32 according to mib file.*/ + return SNMP_ERR_NOSUCHINSTANCE; + } + + if (row_oid->len < engineid_len + name_len + 2) { + /* Partial name given according to oid.*/ + u8_t tmplen = row_oid->len - engineid_len - 2; + if (!snmp_oid_in_range(&row_oid->id[name_start], tmplen, usmUserTable_oid_ranges, tmplen)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + } else { + /* Full name given according to oid. Also test for too much data.*/ + u8_t tmplen = row_oid->len - engineid_len - 2; + if (!snmp_oid_in_range(&row_oid->id[name_start], name_len, usmUserTable_oid_ranges, tmplen)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + } + + /* At this point the EngineID and (partial) UserName match the local EngineID and UserName.*/ + } + } + + /* init struct to search next oid */ + snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(usmUserTable_oid_ranges)); + + for (i = 0; i < snmpv3_get_amount_of_users(); i++) { + u32_t test_oid[LWIP_ARRAYSIZE(usmUserTable_oid_ranges)]; + + test_oid[0] = eid_len; + snmp_engineid_to_oid(engineid, &test_oid[1], eid_len); + + snmpv3_get_username(username, i); + + test_oid[1 + eid_len] = strlen(username); + snmp_name_to_oid(username, &test_oid[2 + eid_len], strlen(username)); + + /* check generated OID: is it a candidate for the next one? */ + snmp_next_oid_check(&state, test_oid, (u8_t)(1 + eid_len + 1 + strlen(username)), LWIP_PTR_NUMERIC_CAST(void *, i)); + } + + /* did we find a next one? */ + if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { + snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); + /* store username for subsequent operations (get/test/set) */ + memset(username, 0, sizeof(username)); + snmpv3_get_username(username, LWIP_PTR_NUMERIC_CAST(u8_t, state.reference)); + cell_instance->reference.ptr = username; + cell_instance->reference_len = strlen(username); + return SNMP_ERR_NOERROR; + } + + /* not found */ + return SNMP_ERR_NOSUCHINSTANCE; +} + +static s16_t usmusertable_get_value(struct snmp_node_instance *cell_instance, void *value) +{ + snmpv3_user_storagetype_t storage_type; + + switch (SNMP_TABLE_GET_COLUMN_FROM_OID(cell_instance->instance_oid.id)) { + case 3: /* usmUserSecurityName */ + MEMCPY(value, cell_instance->reference.ptr, cell_instance->reference_len); + return (s16_t)cell_instance->reference_len; + case 4: /* usmUserCloneFrom */ + MEMCPY(value, snmp_zero_dot_zero.id, snmp_zero_dot_zero.len * sizeof(u32_t)); + return snmp_zero_dot_zero.len * sizeof(u32_t); + case 5: { /* usmUserAuthProtocol */ + const struct snmp_obj_id *auth_algo; + snmpv3_auth_algo_t auth_algo_val; + snmpv3_get_user((const char *)cell_instance->reference.ptr, &auth_algo_val, NULL, NULL, NULL); + auth_algo = snmp_auth_algo_to_oid(auth_algo_val); + MEMCPY(value, auth_algo->id, auth_algo->len * sizeof(u32_t)); + return auth_algo->len * sizeof(u32_t); + } + case 6: /* usmUserAuthKeyChange */ + return 0; + case 7: /* usmUserOwnAuthKeyChange */ + return 0; + case 8: { /* usmUserPrivProtocol */ + const struct snmp_obj_id *priv_algo; + snmpv3_priv_algo_t priv_algo_val; + snmpv3_get_user((const char *)cell_instance->reference.ptr, NULL, NULL, &priv_algo_val, NULL); + priv_algo = snmp_priv_algo_to_oid(priv_algo_val); + MEMCPY(value, priv_algo->id, priv_algo->len * sizeof(u32_t)); + return priv_algo->len * sizeof(u32_t); + } + case 9: /* usmUserPrivKeyChange */ + return 0; + case 10: /* usmUserOwnPrivKeyChange */ + return 0; + case 11: /* usmUserPublic */ + /* TODO: Implement usmUserPublic */ + return 0; + case 12: /* usmUserStorageType */ + snmpv3_get_user_storagetype((const char *)cell_instance->reference.ptr, &storage_type); + *(s32_t *)value = storage_type; + return sizeof(s32_t); + case 13: /* usmUserStatus */ + *(s32_t *)value = 1; /* active */ + return sizeof(s32_t); + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("usmusertable_get_value(): unknown id: %"S32_F"\n", SNMP_TABLE_GET_COLUMN_FROM_OID(cell_instance->instance_oid.id))); + return 0; + } +} + +/* --- usmMIBObjects 1.3.6.1.6.3.15.1 ----------------------------------------------------- */ +static s16_t usmstats_scalars_get_value(const struct snmp_scalar_array_node_def *node, void *value) +{ + u32_t *uint_ptr = (u32_t *)value; + switch (node->oid) { + case 1: /* usmStatsUnsupportedSecLevels */ + *uint_ptr = snmp_stats.unsupportedseclevels; + break; + case 2: /* usmStatsNotInTimeWindows */ + *uint_ptr = snmp_stats.notintimewindows; + break; + case 3: /* usmStatsUnknownUserNames */ + *uint_ptr = snmp_stats.unknownusernames; + break; + case 4: /* usmStatsUnknownEngineIDs */ + *uint_ptr = snmp_stats.unknownengineids; + break; + case 5: /* usmStatsWrongDigests */ + *uint_ptr = snmp_stats.wrongdigests; + break; + case 6: /* usmStatsDecryptionErrors */ + *uint_ptr = snmp_stats.decryptionerrors; + break; + default: + LWIP_DEBUGF(SNMP_MIB_DEBUG, ("usmstats_scalars_get_value(): unknown id: %"S32_F"\n", node->oid)); + return 0; + } + + return sizeof(*uint_ptr); +} + +/* --- snmpUsmMIB ----------------------------------------------------- */ + +/* --- usmUser 1.3.6.1.6.3.15.1.2 ----------------------------------------------------- */ + +static const struct snmp_table_col_def usmusertable_columns[] = { + {3, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserSecurityName */ + {4, SNMP_ASN1_TYPE_OBJECT_ID, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserCloneFrom */ + {5, SNMP_ASN1_TYPE_OBJECT_ID, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserAuthProtocol */ + {6, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserAuthKeyChange */ + {7, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserOwnAuthKeyChange */ + {8, SNMP_ASN1_TYPE_OBJECT_ID, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserPrivProtocol */ + {9, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserPrivKeyChange */ + {10, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserOwnPrivKeyChange */ + {11, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserPublic */ + {12, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserStorageType */ + {13, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmUserStatus */ +}; +static const struct snmp_table_node usmusertable = SNMP_TABLE_CREATE(2, usmusertable_columns, usmusertable_get_instance, usmusertable_get_next_instance, usmusertable_get_value, NULL, NULL); + +static const struct snmp_node *const usmuser_subnodes[] = { + &usmusertable.node.node +}; +static const struct snmp_tree_node usmuser_treenode = SNMP_CREATE_TREE_NODE(2, usmuser_subnodes); + +/* --- usmMIBObjects 1.3.6.1.6.3.15.1 ----------------------------------------------------- */ +static const struct snmp_scalar_array_node_def usmstats_scalars_nodes[] = { + {1, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmStatsUnsupportedSecLevels */ + {2, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmStatsNotInTimeWindows */ + {3, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmStatsUnknownUserNames */ + {4, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmStatsUnknownEngineIDs */ + {5, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmStatsWrongDigests */ + {6, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* usmStatsDecryptionErrors */ +}; +static const struct snmp_scalar_array_node usmstats_scalars = SNMP_SCALAR_CREATE_ARRAY_NODE(1, usmstats_scalars_nodes, usmstats_scalars_get_value, NULL, NULL); + +static const struct snmp_node *const usmmibobjects_subnodes[] = { + &usmstats_scalars.node.node, + &usmuser_treenode.node +}; +static const struct snmp_tree_node usmmibobjects_treenode = SNMP_CREATE_TREE_NODE(1, usmmibobjects_subnodes); + +/* --- snmpUsmMIB ----------------------------------------------------- */ +static const struct snmp_node *const snmpusmmib_subnodes[] = { + &usmmibobjects_treenode.node +}; +static const struct snmp_tree_node snmpusmmib_root = SNMP_CREATE_TREE_NODE(15, snmpusmmib_subnodes); +static const u32_t snmpusmmib_base_oid[] = {1, 3, 6, 1, 6, 3, 15}; +const struct snmp_mib snmpusmmib = {snmpusmmib_base_oid, LWIP_ARRAYSIZE(snmpusmmib_base_oid), &snmpusmmib_root.node}; + +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_table.c b/middleware/lwip/src/apps/snmp/snmp_table.c new file mode 100644 index 0000000..4b77a47 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_table.c @@ -0,0 +1,342 @@ +/** + * @file + * SNMP table support implementation. + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Martin Hentschel + * + */ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/apps/snmp_core.h" +#include "lwip/apps/snmp_table.h" +#include + +snmp_err_t snmp_table_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance) +{ + snmp_err_t ret = SNMP_ERR_NOSUCHINSTANCE; + const struct snmp_table_node *table_node = (const struct snmp_table_node *)(const void *)instance->node; + + LWIP_UNUSED_ARG(root_oid); + LWIP_UNUSED_ARG(root_oid_len); + + /* check min. length (fixed row entry definition, column, row instance oid with at least one entry */ + /* fixed row entry always has oid 1 */ + if ((instance->instance_oid.len >= 3) && (instance->instance_oid.id[0] == 1)) { + /* search column */ + const struct snmp_table_col_def *col_def = table_node->columns; + u16_t i = table_node->column_count; + while (i > 0) { + if (col_def->index == instance->instance_oid.id[1]) { + break; + } + + col_def++; + i--; + } + + if (i > 0) { + /* everything may be overwritten by get_cell_instance_method() in order to implement special handling for single columns/cells */ + instance->asn1_type = col_def->asn1_type; + instance->access = col_def->access; + instance->get_value = table_node->get_value; + instance->set_test = table_node->set_test; + instance->set_value = table_node->set_value; + + ret = table_node->get_cell_instance( + &(instance->instance_oid.id[1]), + &(instance->instance_oid.id[2]), + instance->instance_oid.len - 2, + instance); + } + } + + return ret; +} + +snmp_err_t snmp_table_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance) +{ + const struct snmp_table_node *table_node = (const struct snmp_table_node *)(const void *)instance->node; + const struct snmp_table_col_def *col_def; + struct snmp_obj_id row_oid; + u32_t column = 0; + snmp_err_t result; + + LWIP_UNUSED_ARG(root_oid); + LWIP_UNUSED_ARG(root_oid_len); + + /* check that first part of id is 0 or 1, referencing fixed row entry */ + if ((instance->instance_oid.len > 0) && (instance->instance_oid.id[0] > 1)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + if (instance->instance_oid.len > 1) { + column = instance->instance_oid.id[1]; + } + if (instance->instance_oid.len > 2) { + snmp_oid_assign(&row_oid, &(instance->instance_oid.id[2]), instance->instance_oid.len - 2); + } else { + row_oid.len = 0; + } + + instance->get_value = table_node->get_value; + instance->set_test = table_node->set_test; + instance->set_value = table_node->set_value; + + /* resolve column and value */ + do { + u16_t i; + const struct snmp_table_col_def *next_col_def = NULL; + col_def = table_node->columns; + + for (i = 0; i < table_node->column_count; i++) { + if (col_def->index == column) { + next_col_def = col_def; + break; + } else if ((col_def->index > column) && ((next_col_def == NULL) || (col_def->index < next_col_def->index))) { + next_col_def = col_def; + } + col_def++; + } + + if (next_col_def == NULL) { + /* no further column found */ + return SNMP_ERR_NOSUCHINSTANCE; + } + + instance->asn1_type = next_col_def->asn1_type; + instance->access = next_col_def->access; + + result = table_node->get_next_cell_instance( + &next_col_def->index, + &row_oid, + instance); + + if (result == SNMP_ERR_NOERROR) { + col_def = next_col_def; + break; + } + + row_oid.len = 0; /* reset row_oid because we switch to next column and start with the first entry there */ + column = next_col_def->index + 1; + } while (1); + + /* build resulting oid */ + instance->instance_oid.len = 2; + instance->instance_oid.id[0] = 1; + instance->instance_oid.id[1] = col_def->index; + snmp_oid_append(&instance->instance_oid, row_oid.id, row_oid.len); + + return SNMP_ERR_NOERROR; +} + + +snmp_err_t snmp_table_simple_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance) +{ + snmp_err_t ret = SNMP_ERR_NOSUCHINSTANCE; + const struct snmp_table_simple_node *table_node = (const struct snmp_table_simple_node *)(const void *)instance->node; + + LWIP_UNUSED_ARG(root_oid); + LWIP_UNUSED_ARG(root_oid_len); + + /* check min. length (fixed row entry definition, column, row instance oid with at least one entry */ + /* fixed row entry always has oid 1 */ + if ((instance->instance_oid.len >= 3) && (instance->instance_oid.id[0] == 1)) { + ret = table_node->get_cell_value( + &(instance->instance_oid.id[1]), + &(instance->instance_oid.id[2]), + instance->instance_oid.len - 2, + &instance->reference, + &instance->reference_len); + + if (ret == SNMP_ERR_NOERROR) { + /* search column */ + const struct snmp_table_simple_col_def *col_def = table_node->columns; + u32_t i = table_node->column_count; + while (i > 0) { + if (col_def->index == instance->instance_oid.id[1]) { + break; + } + + col_def++; + i--; + } + + if (i > 0) { + instance->asn1_type = col_def->asn1_type; + instance->access = SNMP_NODE_INSTANCE_READ_ONLY; + instance->set_test = NULL; + instance->set_value = NULL; + + switch (col_def->data_type) { + case SNMP_VARIANT_VALUE_TYPE_U32: + instance->get_value = snmp_table_extract_value_from_u32ref; + break; + case SNMP_VARIANT_VALUE_TYPE_S32: + instance->get_value = snmp_table_extract_value_from_s32ref; + break; + case SNMP_VARIANT_VALUE_TYPE_PTR: /* fall through */ + case SNMP_VARIANT_VALUE_TYPE_CONST_PTR: + instance->get_value = snmp_table_extract_value_from_refconstptr; + break; + default: + LWIP_DEBUGF(SNMP_DEBUG, ("snmp_table_simple_get_instance(): unknown column data_type: %d\n", col_def->data_type)); + return SNMP_ERR_GENERROR; + } + + ret = SNMP_ERR_NOERROR; + } else { + ret = SNMP_ERR_NOSUCHINSTANCE; + } + } + } + + return ret; +} + +snmp_err_t snmp_table_simple_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance) +{ + const struct snmp_table_simple_node *table_node = (const struct snmp_table_simple_node *)(const void *)instance->node; + const struct snmp_table_simple_col_def *col_def; + struct snmp_obj_id row_oid; + u32_t column = 0; + snmp_err_t result; + + LWIP_UNUSED_ARG(root_oid); + LWIP_UNUSED_ARG(root_oid_len); + + /* check that first part of id is 0 or 1, referencing fixed row entry */ + if ((instance->instance_oid.len > 0) && (instance->instance_oid.id[0] > 1)) { + return SNMP_ERR_NOSUCHINSTANCE; + } + if (instance->instance_oid.len > 1) { + column = instance->instance_oid.id[1]; + } + if (instance->instance_oid.len > 2) { + snmp_oid_assign(&row_oid, &(instance->instance_oid.id[2]), instance->instance_oid.len - 2); + } else { + row_oid.len = 0; + } + + /* resolve column and value */ + do { + u32_t i; + const struct snmp_table_simple_col_def *next_col_def = NULL; + col_def = table_node->columns; + + for (i = 0; i < table_node->column_count; i++) { + if (col_def->index == column) { + next_col_def = col_def; + break; + } else if ((col_def->index > column) && ((next_col_def == NULL) || + (col_def->index < next_col_def->index))) { + next_col_def = col_def; + } + col_def++; + } + + if (next_col_def == NULL) { + /* no further column found */ + return SNMP_ERR_NOSUCHINSTANCE; + } + + result = table_node->get_next_cell_instance_and_value( + &next_col_def->index, + &row_oid, + &instance->reference, + &instance->reference_len); + + if (result == SNMP_ERR_NOERROR) { + col_def = next_col_def; + break; + } + + row_oid.len = 0; /* reset row_oid because we switch to next column and start with the first entry there */ + column = next_col_def->index + 1; + } while (1); + + instance->asn1_type = col_def->asn1_type; + instance->access = SNMP_NODE_INSTANCE_READ_ONLY; + instance->set_test = NULL; + instance->set_value = NULL; + + switch (col_def->data_type) { + case SNMP_VARIANT_VALUE_TYPE_U32: + instance->get_value = snmp_table_extract_value_from_u32ref; + break; + case SNMP_VARIANT_VALUE_TYPE_S32: + instance->get_value = snmp_table_extract_value_from_s32ref; + break; + case SNMP_VARIANT_VALUE_TYPE_PTR: /* fall through */ + case SNMP_VARIANT_VALUE_TYPE_CONST_PTR: + instance->get_value = snmp_table_extract_value_from_refconstptr; + break; + default: + LWIP_DEBUGF(SNMP_DEBUG, ("snmp_table_simple_get_instance(): unknown column data_type: %d\n", col_def->data_type)); + return SNMP_ERR_GENERROR; + } + + /* build resulting oid */ + instance->instance_oid.len = 2; + instance->instance_oid.id[0] = 1; + instance->instance_oid.id[1] = col_def->index; + snmp_oid_append(&instance->instance_oid, row_oid.id, row_oid.len); + + return SNMP_ERR_NOERROR; +} + + +s16_t +snmp_table_extract_value_from_s32ref(struct snmp_node_instance *instance, void *value) +{ + s32_t *dst = (s32_t *)value; + *dst = instance->reference.s32; + return sizeof(*dst); +} + +s16_t +snmp_table_extract_value_from_u32ref(struct snmp_node_instance *instance, void *value) +{ + u32_t *dst = (u32_t *)value; + *dst = instance->reference.u32; + return sizeof(*dst); +} + +s16_t +snmp_table_extract_value_from_refconstptr(struct snmp_node_instance *instance, void *value) +{ + MEMCPY(value, instance->reference.const_ptr, instance->reference_len); + return (u16_t)instance->reference_len; +} + +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_threadsync.c b/middleware/lwip/src/apps/snmp/snmp_threadsync.c new file mode 100644 index 0000000..56d9886 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_threadsync.c @@ -0,0 +1,231 @@ +/** + * @file + * SNMP thread synchronization implementation. + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dirk Ziegelmeier + */ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP && (NO_SYS == 0) /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/apps/snmp_threadsync.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/sys.h" +#include + +static void +call_synced_function(struct threadsync_data *call_data, snmp_threadsync_called_fn fn) +{ + sys_mutex_lock(&call_data->threadsync_node->instance->sem_usage_mutex); + call_data->threadsync_node->instance->sync_fn(fn, call_data); + sys_sem_wait(&call_data->threadsync_node->instance->sem); + sys_mutex_unlock(&call_data->threadsync_node->instance->sem_usage_mutex); +} + +static void +threadsync_get_value_synced(void *ctx) +{ + struct threadsync_data *call_data = (struct threadsync_data *)ctx; + + if (call_data->proxy_instance.get_value != NULL) { + call_data->retval.s16 = call_data->proxy_instance.get_value(&call_data->proxy_instance, call_data->arg1.value); + } else { + call_data->retval.s16 = -1; + } + + sys_sem_signal(&call_data->threadsync_node->instance->sem); +} + +static s16_t +threadsync_get_value(struct snmp_node_instance *instance, void *value) +{ + struct threadsync_data *call_data = (struct threadsync_data *)instance->reference.ptr; + + call_data->arg1.value = value; + call_synced_function(call_data, threadsync_get_value_synced); + + return call_data->retval.s16; +} + +static void +threadsync_set_test_synced(void *ctx) +{ + struct threadsync_data *call_data = (struct threadsync_data *)ctx; + + if (call_data->proxy_instance.set_test != NULL) { + call_data->retval.err = call_data->proxy_instance.set_test(&call_data->proxy_instance, call_data->arg2.len, call_data->arg1.value); + } else { + call_data->retval.err = SNMP_ERR_NOTWRITABLE; + } + + sys_sem_signal(&call_data->threadsync_node->instance->sem); +} + +static snmp_err_t +threadsync_set_test(struct snmp_node_instance *instance, u16_t len, void *value) +{ + struct threadsync_data *call_data = (struct threadsync_data *)instance->reference.ptr; + + call_data->arg1.value = value; + call_data->arg2.len = len; + call_synced_function(call_data, threadsync_set_test_synced); + + return call_data->retval.err; +} + +static void +threadsync_set_value_synced(void *ctx) +{ + struct threadsync_data *call_data = (struct threadsync_data *)ctx; + + if (call_data->proxy_instance.set_value != NULL) { + call_data->retval.err = call_data->proxy_instance.set_value(&call_data->proxy_instance, call_data->arg2.len, call_data->arg1.value); + } else { + call_data->retval.err = SNMP_ERR_NOTWRITABLE; + } + + sys_sem_signal(&call_data->threadsync_node->instance->sem); +} + +static snmp_err_t +threadsync_set_value(struct snmp_node_instance *instance, u16_t len, void *value) +{ + struct threadsync_data *call_data = (struct threadsync_data *)instance->reference.ptr; + + call_data->arg1.value = value; + call_data->arg2.len = len; + call_synced_function(call_data, threadsync_set_value_synced); + + return call_data->retval.err; +} + +static void +threadsync_release_instance_synced(void *ctx) +{ + struct threadsync_data *call_data = (struct threadsync_data *)ctx; + + call_data->proxy_instance.release_instance(&call_data->proxy_instance); + + sys_sem_signal(&call_data->threadsync_node->instance->sem); +} + +static void +threadsync_release_instance(struct snmp_node_instance *instance) +{ + struct threadsync_data *call_data = (struct threadsync_data *)instance->reference.ptr; + + if (call_data->proxy_instance.release_instance != NULL) { + call_synced_function(call_data, threadsync_release_instance_synced); + } +} + +static void +get_instance_synced(void *ctx) +{ + struct threadsync_data *call_data = (struct threadsync_data *)ctx; + const struct snmp_leaf_node *leaf = (const struct snmp_leaf_node *)(const void *)call_data->proxy_instance.node; + + call_data->retval.err = leaf->get_instance(call_data->arg1.root_oid, call_data->arg2.root_oid_len, &call_data->proxy_instance); + + sys_sem_signal(&call_data->threadsync_node->instance->sem); +} + +static void +get_next_instance_synced(void *ctx) +{ + struct threadsync_data *call_data = (struct threadsync_data *)ctx; + const struct snmp_leaf_node *leaf = (const struct snmp_leaf_node *)(const void *)call_data->proxy_instance.node; + + call_data->retval.err = leaf->get_next_instance(call_data->arg1.root_oid, call_data->arg2.root_oid_len, &call_data->proxy_instance); + + sys_sem_signal(&call_data->threadsync_node->instance->sem); +} + +static snmp_err_t +do_sync(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance, snmp_threadsync_called_fn fn) +{ + const struct snmp_threadsync_node *threadsync_node = (const struct snmp_threadsync_node *)(const void *)instance->node; + struct threadsync_data *call_data = &threadsync_node->instance->data; + + if (threadsync_node->node.node.oid != threadsync_node->target->node.oid) { + LWIP_DEBUGF(SNMP_DEBUG, ("Sync node OID does not match target node OID")); + return SNMP_ERR_NOSUCHINSTANCE; + } + + memset(&call_data->proxy_instance, 0, sizeof(call_data->proxy_instance)); + + instance->reference.ptr = call_data; + snmp_oid_assign(&call_data->proxy_instance.instance_oid, instance->instance_oid.id, instance->instance_oid.len); + + call_data->proxy_instance.node = &threadsync_node->target->node; + call_data->threadsync_node = threadsync_node; + + call_data->arg1.root_oid = root_oid; + call_data->arg2.root_oid_len = root_oid_len; + call_synced_function(call_data, fn); + + if (call_data->retval.err == SNMP_ERR_NOERROR) { + instance->access = call_data->proxy_instance.access; + instance->asn1_type = call_data->proxy_instance.asn1_type; + instance->release_instance = threadsync_release_instance; + instance->get_value = (call_data->proxy_instance.get_value != NULL) ? threadsync_get_value : NULL; + instance->set_value = (call_data->proxy_instance.set_value != NULL) ? threadsync_set_value : NULL; + instance->set_test = (call_data->proxy_instance.set_test != NULL) ? threadsync_set_test : NULL; + snmp_oid_assign(&instance->instance_oid, call_data->proxy_instance.instance_oid.id, call_data->proxy_instance.instance_oid.len); + } + + return call_data->retval.err; +} + +snmp_err_t +snmp_threadsync_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance) +{ + return do_sync(root_oid, root_oid_len, instance, get_instance_synced); +} + +snmp_err_t +snmp_threadsync_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance *instance) +{ + return do_sync(root_oid, root_oid_len, instance, get_next_instance_synced); +} + +/** Initializes thread synchronization instance */ +void snmp_threadsync_init(struct snmp_threadsync_instance *instance, snmp_threadsync_synchronizer_fn sync_fn) +{ + err_t err = sys_mutex_new(&instance->sem_usage_mutex); + LWIP_ASSERT("Failed to set up mutex", err == ERR_OK); + err = sys_sem_new(&instance->sem, 0); + LWIP_UNUSED_ARG(err); /* in case of LWIP_NOASSERT */ + LWIP_ASSERT("Failed to set up semaphore", err == ERR_OK); + instance->sync_fn = sync_fn; +} + +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/src/apps/snmp/snmp_traps.c b/middleware/lwip/src/apps/snmp/snmp_traps.c new file mode 100644 index 0000000..3f83f2d --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmp_traps.c @@ -0,0 +1,900 @@ +/** + * @file + * SNMPv1 and SNMPv2 traps implementation. + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Martin Hentschel + * Christiaan Simons + * + */ + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include + +#include "lwip/snmp.h" +#include "lwip/sys.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/snmp_core.h" +#include "lwip/prot/iana.h" +#include "snmp_msg.h" +#include "snmp_asn1.h" +#include "snmp_core_priv.h" + +#define SNMP_IS_INFORM 1 +#define SNMP_IS_TRAP 0 + +struct snmp_msg_trap +{ + /* source enterprise ID (sysObjectID) */ + const struct snmp_obj_id *enterprise; + /* source IP address, raw network order format */ + ip_addr_t sip; + /* generic trap code */ + u32_t gen_trap; + /* specific trap code */ + u32_t spc_trap; + /* timestamp */ + u32_t ts; + /* snmp_version */ + u32_t snmp_version; + + /* output trap lengths used in ASN encoding */ + /* encoding pdu length */ + u16_t pdulen; + /* encoding community length */ + u16_t comlen; + /* encoding sequence length */ + u16_t seqlen; + /* encoding varbinds sequence length */ + u16_t vbseqlen; + + /* error status */ + s32_t error_status; + /* error index */ + s32_t error_index; + /* trap or inform? */ + u8_t trap_or_inform; +}; + +static u16_t snmp_trap_varbind_sum(struct snmp_msg_trap *trap, struct snmp_varbind *varbinds); +static u16_t snmp_trap_header_sum(struct snmp_msg_trap *trap, u16_t vb_len); +static err_t snmp_trap_header_enc(struct snmp_msg_trap *trap, struct snmp_pbuf_stream *pbuf_stream); +static err_t snmp_trap_varbind_enc(struct snmp_msg_trap *trap, struct snmp_pbuf_stream *pbuf_stream, struct snmp_varbind *varbinds); +static u16_t snmp_trap_header_sum_v1_specific(struct snmp_msg_trap *trap); +static u16_t snmp_trap_header_sum_v2c_specific(struct snmp_msg_trap *trap); +static err_t snmp_trap_header_enc_v1_specific(struct snmp_msg_trap *trap, struct snmp_pbuf_stream *pbuf_stream); +static err_t snmp_trap_header_enc_v2c_specific(struct snmp_msg_trap *trap, struct snmp_pbuf_stream *pbuf_stream); +static err_t snmp_prepare_trap_oid(struct snmp_obj_id *dest_snmp_trap_oid, const struct snmp_obj_id *eoid, s32_t generic_trap, s32_t specific_trap); +static void snmp_prepare_necessary_msg_fields(struct snmp_msg_trap *trap_msg, const struct snmp_obj_id *eoid, s32_t generic_trap, s32_t specific_trap, struct snmp_varbind *varbinds); +static err_t snmp_send_msg(struct snmp_msg_trap *trap_msg, struct snmp_varbind *varbinds, u16_t tot_len, ip_addr_t *dip); + +#define BUILD_EXEC(code) \ + if ((code) != ERR_OK) { \ + LWIP_DEBUGF(SNMP_DEBUG, ("SNMP error during creation of outbound trap frame!")); \ + return ERR_ARG; \ + } + +/** Agent community string for sending traps */ +extern const char *snmp_community_trap; + +void *snmp_traps_handle; + +/** + * @ingroup snmp_traps + * @struct snmp_trap_dst + */ +struct snmp_trap_dst +{ + /* destination IP address in network order */ + ip_addr_t dip; + /* set to 0 when disabled, >0 when enabled */ + u8_t enable; +}; +static struct snmp_trap_dst trap_dst[SNMP_TRAP_DESTINATIONS]; + +static u8_t snmp_auth_traps_enabled = 0; + +/* This is used in functions like snmp_coldstart_trap where user didn't specify which version of trap to use */ +static u8_t snmp_default_trap_version = SNMP_VERSION_1; + +/* This is used in trap messages v2c */ +static s32_t req_id = 1; + +/** + * @ingroup snmp_traps + * Sets enable switch for this trap destination. + * @param dst_idx index in 0 .. SNMP_TRAP_DESTINATIONS-1 + * @param enable switch if 0 destination is disabled >0 enabled. + * + * @retval void + */ +void +snmp_trap_dst_enable(u8_t dst_idx, u8_t enable) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (dst_idx < SNMP_TRAP_DESTINATIONS) { + trap_dst[dst_idx].enable = enable; + } +} + +/** + * @ingroup snmp_traps + * Sets IPv4 address for this trap destination. + * @param dst_idx index in 0 .. SNMP_TRAP_DESTINATIONS-1 + * @param dst IPv4 address in host order. + * + * @retval void + */ +void +snmp_trap_dst_ip_set(u8_t dst_idx, const ip_addr_t *dst) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (dst_idx < SNMP_TRAP_DESTINATIONS) { + ip_addr_set(&trap_dst[dst_idx].dip, dst); + } +} + +/** + * @ingroup snmp_traps + * Enable/disable authentication traps + * + * @param enable enable SNMP traps + * + * @retval void + */ +void +snmp_set_auth_traps_enabled(u8_t enable) +{ + snmp_auth_traps_enabled = enable; +} + +/** + * @ingroup snmp_traps + * Get authentication traps enabled state + * + * @return TRUE if traps are enabled, FALSE if they aren't + */ +u8_t +snmp_get_auth_traps_enabled(void) +{ + return snmp_auth_traps_enabled; +} + +/** + * @ingroup snmp_traps + * Choose default SNMP version for sending traps (if not specified, default version is SNMP_VERSION_1) + * SNMP_VERSION_1 0 + * SNMP_VERSION_2c 1 + * SNMP_VERSION_3 3 + * + * @param snmp_version version that will be used for sending traps + * + * @retval void + */ +void +snmp_set_default_trap_version(u8_t snmp_version) +{ + snmp_default_trap_version = snmp_version; +} + +/** + * @ingroup snmp_traps + * Get default SNMP version for sending traps + * + * @return selected default version: + * 0 - SNMP_VERSION_1 + * 1 - SNMP_VERSION_2c + * 3 - SNMP_VERSION_3 + */ +u8_t +snmp_get_default_trap_version(void) +{ + return snmp_default_trap_version; +} + +/** + * @ingroup snmp_traps + * Prepares snmpTrapOID for SNMP v2c + * @param dest_snmp_trap_oid pointer to destination snmpTrapOID + * @param eoid enterprise oid (can be NULL) + * @param generic_trap SNMP v1 generic trap + * @param specific_trap SNMP v1 specific trap + * @return ERR_OK if completed successfully; + * ERR_MEM if there wasn't enough memory allocated for destination; + * ERR_VAL if value for generic trap was incorrect; + */ +static err_t +snmp_prepare_trap_oid(struct snmp_obj_id *dest_snmp_trap_oid, const struct snmp_obj_id *eoid, s32_t generic_trap, s32_t specific_trap) +{ + err_t err = ERR_OK; + const u32_t snmpTrapOID[] = {1, 3, 6, 1, 6, 3, 1, 1, 5}; /* please see rfc3584 */ + + if (generic_trap == SNMP_GENTRAP_ENTERPRISE_SPECIFIC) { + if (eoid == NULL) { + MEMCPY(dest_snmp_trap_oid, snmp_get_device_enterprise_oid(), sizeof(*dest_snmp_trap_oid)); + } else { + MEMCPY(dest_snmp_trap_oid, eoid, sizeof(*dest_snmp_trap_oid)); + } + if (dest_snmp_trap_oid->len + 2 < SNMP_MAX_OBJ_ID_LEN) { + dest_snmp_trap_oid->id[dest_snmp_trap_oid->len++] = 0; + dest_snmp_trap_oid->id[dest_snmp_trap_oid->len++] = specific_trap; + } else { + err = ERR_MEM; + } + } else if ((generic_trap >= SNMP_GENTRAP_COLDSTART) && (generic_trap < SNMP_GENTRAP_ENTERPRISE_SPECIFIC)) { + if (sizeof(dest_snmp_trap_oid->id) >= sizeof(snmpTrapOID)) { + MEMCPY(&dest_snmp_trap_oid->id, snmpTrapOID , sizeof(snmpTrapOID)); + dest_snmp_trap_oid->len = LWIP_ARRAYSIZE(snmpTrapOID); + dest_snmp_trap_oid->id[dest_snmp_trap_oid->len++] = specific_trap + 1; + } else { + err = ERR_MEM; + } + } else { + err = ERR_VAL; + } + return err; +} + +/** + * @ingroup snmp_traps + * Prepare the rest of the necessary fields for trap/notification/inform message. + * @param trap_msg message that should be set + * @param eoid enterprise oid (can be NULL) + * @param generic_trap SNMP v1 generic trap + * @param specific_trap SNMP v1 specific trap + * @param varbinds list of varbinds + * @retval void + */ +static void +snmp_prepare_necessary_msg_fields(struct snmp_msg_trap *trap_msg, const struct snmp_obj_id *eoid, s32_t generic_trap, s32_t specific_trap, struct snmp_varbind *varbinds) +{ + if (trap_msg->snmp_version == SNMP_VERSION_1) { + trap_msg->enterprise = (eoid == NULL) ? snmp_get_device_enterprise_oid() : eoid; + trap_msg->gen_trap = generic_trap; + trap_msg->spc_trap = (generic_trap == SNMP_GENTRAP_ENTERPRISE_SPECIFIC) ? specific_trap : 0; + MIB2_COPY_SYSUPTIME_TO(&trap_msg->ts); + } else if (trap_msg->snmp_version == SNMP_VERSION_2c) { + /* Copy sysUpTime into the first varbind */ + MIB2_COPY_SYSUPTIME_TO((u32_t *)varbinds[0].value); + } +} + +/** + * @ingroup snmp_traps + * Copy trap message structure to pbuf and sends it + * @param trap_msg contains the data that should be sent + * @param varbinds list of varbinds + * @param tot_len total length of encoded data + * @param dip destination IP address + * @return ERR_OK if sending was successful + */ +static err_t +snmp_send_msg(struct snmp_msg_trap *trap_msg, struct snmp_varbind *varbinds, u16_t tot_len, ip_addr_t *dip) +{ + err_t err = ERR_OK; + struct pbuf *p = NULL; + /* allocate pbuf(s) */ + p = pbuf_alloc(PBUF_TRANSPORT, tot_len, PBUF_RAM); + if (p != NULL) { + struct snmp_pbuf_stream pbuf_stream; + snmp_pbuf_stream_init(&pbuf_stream, p, 0, tot_len); + + /* pass 1, encode packet ino the pbuf(s) */ + BUILD_EXEC( snmp_trap_header_enc(trap_msg, &pbuf_stream) ); + BUILD_EXEC( snmp_trap_varbind_enc(trap_msg, &pbuf_stream, varbinds) ); + + snmp_stats.outtraps++; + snmp_stats.outpkts++; + + /** send to the TRAP destination */ + err = snmp_sendto(snmp_traps_handle, p, dip, LWIP_IANA_PORT_SNMP_TRAP); + pbuf_free(p); + } else { + err = ERR_MEM; + } + return err; +} + +/** + * @ingroup snmp_traps + * Prepare and sends a generic or enterprise specific trap message, notification or inform. + * + * @param trap_msg defines msg type + * @param eoid points to enterprise object identifier + * @param generic_trap is the trap code + * @param specific_trap used for enterprise traps when generic_trap == 6 + * @param varbinds linked list of varbinds to be sent + * @return ERR_OK when success, ERR_MEM if we're out of memory + * + * @note the use of the enterprise identifier field + * is per RFC1215. + * Use .iso.org.dod.internet.mgmt.mib-2.snmp for generic traps + * and .iso.org.dod.internet.private.enterprises.yourenterprise + * (sysObjectID) for specific traps. + */ +static err_t +snmp_send_trap_or_notification_or_inform_generic(struct snmp_msg_trap *trap_msg, const struct snmp_obj_id *eoid, s32_t generic_trap, s32_t specific_trap, struct snmp_varbind *varbinds) +{ + struct snmp_trap_dst *td = NULL; + u16_t i = 0; + u16_t tot_len = 0; + err_t err = ERR_OK; + u32_t timestamp = 0; + struct snmp_varbind *original_varbinds = varbinds; + struct snmp_varbind *original_prev = NULL; + struct snmp_varbind snmp_v2_special_varbinds[] = { + /* First varbind is used to store sysUpTime */ + { + NULL, /* *next */ + NULL, /* *prev */ + { /* oid */ + 8, /* oid len */ + {1, 3, 6, 1, 2, 1, 1, 3} /* oid for sysUpTime */ + }, + SNMP_ASN1_TYPE_TIMETICKS, /* type */ + sizeof(u32_t), /* value_len */ + NULL /* value */ + }, + /* Second varbind is used to store snmpTrapOID */ + { + NULL, /* *next */ + NULL, /* *prev */ + { /* oid */ + 10, /* oid len */ + {1, 3, 6, 1, 6, 3, 1, 1, 4, 1} /* oid for snmpTrapOID */ + }, + SNMP_ASN1_TYPE_OBJECT_ID, /* type */ + 0, /* value_len */ + NULL /* value */ + } + }; + + LWIP_ASSERT_CORE_LOCKED(); + + snmp_v2_special_varbinds[0].next = &snmp_v2_special_varbinds[1]; + snmp_v2_special_varbinds[1].prev = &snmp_v2_special_varbinds[0]; + + snmp_v2_special_varbinds[0].value = ×tamp; + + snmp_v2_special_varbinds[1].next = varbinds; + + /* see rfc3584 */ + if (trap_msg->snmp_version == SNMP_VERSION_2c) { + struct snmp_obj_id snmp_trap_oid = { 0 }; /* used for converting SNMPv1 generic/specific trap parameter to SNMPv2 snmpTrapOID */ + err = snmp_prepare_trap_oid(&snmp_trap_oid, eoid, generic_trap, specific_trap); + if (err == ERR_OK) { + snmp_v2_special_varbinds[1].value_len = snmp_trap_oid.len * sizeof(snmp_trap_oid.id[0]); + snmp_v2_special_varbinds[1].value = snmp_trap_oid.id; + if (varbinds != NULL) { + original_prev = varbinds->prev; + varbinds->prev = &snmp_v2_special_varbinds[1]; + } + varbinds = snmp_v2_special_varbinds; /* After inserting two varbinds at the beginning of the list, make sure that pointer is pointing to the first element */ + } + } + + for (i = 0, td = &trap_dst[0]; (i < SNMP_TRAP_DESTINATIONS) && (err == ERR_OK); i++, td++) { + if ((td->enable != 0) && !ip_addr_isany(&td->dip)) { + /* lookup current source address for this dst */ + if (snmp_get_local_ip_for_dst(snmp_traps_handle, &td->dip, &trap_msg->sip)) { + snmp_prepare_necessary_msg_fields(trap_msg, eoid, generic_trap, specific_trap, varbinds); + + /* pass 0, calculate length fields */ + tot_len = snmp_trap_varbind_sum(trap_msg, varbinds); + tot_len = snmp_trap_header_sum(trap_msg, tot_len); + + /* allocate pbuf, fill it and send it */ + err = snmp_send_msg(trap_msg, varbinds, tot_len, &td->dip); + } else { + /* routing error */ + err = ERR_RTE; + } + } + } + if ((trap_msg->snmp_version == SNMP_VERSION_2c) && (original_varbinds != NULL)) { + original_varbinds->prev = original_prev; + } + req_id++; + return err; +} + +/** + * @ingroup snmp_traps + * This function is a wrapper function for preparing and sending generic or specific traps. + * + * @param oid points to enterprise object identifier + * @param generic_trap is the trap code + * @param specific_trap used for enterprise traps when generic_trap == 6 + * @param varbinds linked list of varbinds to be sent + * @return ERR_OK when success, ERR_MEM if we're out of memory + * + * @note the use of the enterprise identifier field + * is per RFC1215. + * Use .iso.org.dod.internet.mgmt.mib-2.snmp for generic traps + * and .iso.org.dod.internet.private.enterprises.yourenterprise + * (sysObjectID) for specific traps. + */ +err_t +snmp_send_trap(const struct snmp_obj_id* oid, s32_t generic_trap, s32_t specific_trap, struct snmp_varbind *varbinds) +{ + struct snmp_msg_trap trap_msg = {0}; + trap_msg.snmp_version = snmp_default_trap_version; + trap_msg.trap_or_inform = SNMP_IS_TRAP; + return snmp_send_trap_or_notification_or_inform_generic(&trap_msg, oid, generic_trap, specific_trap, varbinds); +} + +/** + * @ingroup snmp_traps + * Send generic SNMP trap + * @param generic_trap is the trap code + * return ERR_OK when success + */ +err_t +snmp_send_trap_generic(s32_t generic_trap) +{ + err_t err = ERR_OK; + struct snmp_msg_trap trap_msg = {0}; + trap_msg.snmp_version = snmp_default_trap_version; + trap_msg.trap_or_inform = SNMP_IS_TRAP; + + if(snmp_default_trap_version == SNMP_VERSION_1) { + static const struct snmp_obj_id oid = { 7, { 1, 3, 6, 1, 2, 1, 11 } }; + err = snmp_send_trap_or_notification_or_inform_generic(&trap_msg, &oid, generic_trap, 0, NULL); + } else if (snmp_default_trap_version == SNMP_VERSION_2c) { + err = snmp_send_trap_or_notification_or_inform_generic(&trap_msg, NULL, generic_trap, 0, NULL); + } else { + err = ERR_VAL; + } + return err; +} + +/** + * @ingroup snmp_traps + * Send specific SNMP trap with variable bindings + * @param specific_trap used for enterprise traps (generic_trap = 6) + * @param varbinds linked list of varbinds to be sent + * @return ERR_OK when success + */ +err_t +snmp_send_trap_specific(s32_t specific_trap, struct snmp_varbind *varbinds) +{ + struct snmp_msg_trap trap_msg = {0}; + trap_msg.snmp_version = snmp_default_trap_version; + trap_msg.trap_or_inform = SNMP_IS_TRAP; + return snmp_send_trap_or_notification_or_inform_generic(&trap_msg, NULL, SNMP_GENTRAP_ENTERPRISE_SPECIFIC, specific_trap, varbinds); +} + +/** + * @ingroup snmp_traps + * Send coldstart trap + * @retval void + */ +void +snmp_coldstart_trap(void) +{ + snmp_send_trap_generic(SNMP_GENTRAP_COLDSTART); +} + +/** + * @ingroup snmp_traps + * Send authentication failure trap (used internally by agent) + * @retval void + */ +void +snmp_authfail_trap(void) +{ + if (snmp_auth_traps_enabled != 0) { + snmp_send_trap_generic(SNMP_GENTRAP_AUTH_FAILURE); + } +} + +/** + * @ingroup snmp_traps + * Sums trap varbinds + * + * @param trap Trap message + * @param varbinds linked list of varbinds + * @return the required length for encoding of this part of the trap header + */ +static u16_t +snmp_trap_varbind_sum(struct snmp_msg_trap *trap, struct snmp_varbind *varbinds) +{ + struct snmp_varbind *varbind; + u16_t tot_len; + u8_t tot_len_len; + + tot_len = 0; + varbind = varbinds; + while (varbind != NULL) { + struct snmp_varbind_len len; + + if (snmp_varbind_length(varbind, &len) == ERR_OK) { + tot_len += 1 + len.vb_len_len + len.vb_value_len; + } + + varbind = varbind->next; + } + + trap->vbseqlen = tot_len; + snmp_asn1_enc_length_cnt(trap->vbseqlen, &tot_len_len); + tot_len += 1 + tot_len_len; + + return tot_len; +} + +/** + * @ingroup snmp_traps + * Sums trap header fields that are specific for SNMP v1 + * + * @param trap Trap message + * @return the required length for encoding of this part of the trap header + */ +static u16_t +snmp_trap_header_sum_v1_specific(struct snmp_msg_trap *trap) +{ + u16_t tot_len = 0; + u16_t len = 0; + u8_t lenlen = 0; + + snmp_asn1_enc_u32t_cnt(trap->ts, &len); + snmp_asn1_enc_length_cnt(len, &lenlen); + tot_len += 1 + len + lenlen; + + snmp_asn1_enc_s32t_cnt(trap->spc_trap, &len); + snmp_asn1_enc_length_cnt(len, &lenlen); + tot_len += 1 + len + lenlen; + + snmp_asn1_enc_s32t_cnt(trap->gen_trap, &len); + snmp_asn1_enc_length_cnt(len, &lenlen); + tot_len += 1 + len + lenlen; + + if (IP_IS_V6_VAL(trap->sip)) { +#if LWIP_IPV6 + len = sizeof(ip_2_ip6(&trap->sip)->addr); +#endif + } else { +#if LWIP_IPV4 + len = sizeof(ip_2_ip4(&trap->sip)->addr); +#endif + } + snmp_asn1_enc_length_cnt(len, &lenlen); + tot_len += 1 + len + lenlen; + + snmp_asn1_enc_oid_cnt(trap->enterprise->id, trap->enterprise->len, &len); + snmp_asn1_enc_length_cnt(len, &lenlen); + tot_len += 1 + len + lenlen; + + return tot_len; +} + +/** + * @ingroup snmp_traps + * Sums trap header fields that are specific for SNMP v2c + * + * @param trap Trap message + * @return the required length for encoding of this part of the trap header + */ +static u16_t +snmp_trap_header_sum_v2c_specific(struct snmp_msg_trap *trap) +{ + u16_t tot_len = 0; + u16_t len = 0; + u8_t lenlen = 0; + + snmp_asn1_enc_u32t_cnt(req_id, &len); + snmp_asn1_enc_length_cnt(len, &lenlen); + tot_len += 1 + len + lenlen; + snmp_asn1_enc_u32t_cnt(trap->error_status, &len); + snmp_asn1_enc_length_cnt(len, &lenlen); + tot_len += 1 + len + lenlen; + snmp_asn1_enc_u32t_cnt(trap->error_index, &len); + snmp_asn1_enc_length_cnt(len, &lenlen); + tot_len += 1 + len + lenlen; + + return tot_len; +} + +/** + * @ingroup snmp_traps + * Sums trap header field lengths from tail to head and + * returns trap_header_lengths for second encoding pass. + * + * @param trap Trap message + * @param vb_len varbind-list length + * @return the required length for encoding the trap header + */ +static u16_t +snmp_trap_header_sum(struct snmp_msg_trap *trap, u16_t vb_len) +{ + u16_t tot_len = vb_len; + u16_t len = 0; + u8_t lenlen = 0; + + if (trap->snmp_version == SNMP_VERSION_1) { + tot_len += snmp_trap_header_sum_v1_specific(trap); + } else if (trap->snmp_version == SNMP_VERSION_2c) { + tot_len += snmp_trap_header_sum_v2c_specific(trap); + } + trap->pdulen = tot_len; + snmp_asn1_enc_length_cnt(trap->pdulen, &lenlen); + tot_len += 1 + lenlen; + + trap->comlen = (u16_t)LWIP_MIN(strlen(snmp_community_trap), 0xFFFF); + snmp_asn1_enc_length_cnt(trap->comlen, &lenlen); + tot_len += 1 + lenlen + trap->comlen; + + snmp_asn1_enc_s32t_cnt(trap->snmp_version, &len); + snmp_asn1_enc_length_cnt(len, &lenlen); + tot_len += 1 + len + lenlen; + + trap->seqlen = tot_len; + snmp_asn1_enc_length_cnt(trap->seqlen, &lenlen); + tot_len += 1 + lenlen; + + return tot_len; +} + +/** + * @ingroup snmp_traps + * Encodes varbinds. + * @param trap Trap message + * @param pbuf_stream stream used for storing data inside pbuf + * @param varbinds linked list of varbinds + * @retval err_t ERR_OK if successful, ERR_ARG otherwise + */ +static err_t +snmp_trap_varbind_enc(struct snmp_msg_trap *trap, struct snmp_pbuf_stream *pbuf_stream, struct snmp_varbind *varbinds) +{ + struct snmp_asn1_tlv tlv; + struct snmp_varbind *varbind; + + varbind = varbinds; + + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 0, trap->vbseqlen); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + + while (varbind != NULL) { + BUILD_EXEC( snmp_append_outbound_varbind(pbuf_stream, varbind) ); + + varbind = varbind->next; + } + + return ERR_OK; +} + +/** + * @ingroup snmp_traps + * Encodes trap header PDU part. + * @param trap Trap message + * @param pbuf_stream stream used for storing data inside pbuf + * @retval err_t ERR_OK if successful, ERR_ARG otherwise + */ +static err_t +snmp_trap_header_enc_pdu(struct snmp_msg_trap *trap, struct snmp_pbuf_stream *pbuf_stream) +{ + struct snmp_asn1_tlv tlv; + /* 'PDU' sequence */ + if (trap->snmp_version == SNMP_VERSION_1) { + /* TRAP V1 */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, (SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_CONTEXT_PDU_TRAP), 0, trap->pdulen); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + } else if ((trap->snmp_version == SNMP_VERSION_2c) && (trap->trap_or_inform == SNMP_IS_INFORM)) { + /* TRAP v2 - INFORM */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, (SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_CONTEXT_PDU_INFORM_REQ), 0, trap->pdulen); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + } else if (trap->snmp_version == SNMP_VERSION_2c) { + /* TRAP v2 - NOTIFICATION*/ + SNMP_ASN1_SET_TLV_PARAMS(tlv, (SNMP_ASN1_CLASS_CONTEXT | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_CONTEXT_PDU_V2_TRAP), 0, trap->pdulen); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + } + + return ERR_OK; +} + +/** + * @ingroup snmp_traps + * Encodes trap header part that is SNMP v1 header specific. + * @param trap Trap message + * @param pbuf_stream stream used for storing data inside pbuf + * @retval void + */ +static err_t +snmp_trap_header_enc_v1_specific(struct snmp_msg_trap *trap, struct snmp_pbuf_stream *pbuf_stream) +{ + struct snmp_asn1_tlv tlv; + /* object ID */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OBJECT_ID, 0, 0); + snmp_asn1_enc_oid_cnt(trap->enterprise->id, trap->enterprise->len, &tlv.value_len); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_oid(pbuf_stream, trap->enterprise->id, trap->enterprise->len) ); + + /* IP addr */ + if (IP_IS_V6_VAL(trap->sip)) { +#if LWIP_IPV6 + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_IPADDR, 0, sizeof(ip_2_ip6(&trap->sip)->addr)); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_raw(pbuf_stream, (const u8_t *)&ip_2_ip6(&trap->sip)->addr, sizeof(ip_2_ip6(&trap->sip)->addr)) ); +#endif + } else { +#if LWIP_IPV4 + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_IPADDR, 0, sizeof(ip_2_ip4(&trap->sip)->addr)); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_raw(pbuf_stream, (const u8_t *)&ip_2_ip4(&trap->sip)->addr, sizeof(ip_2_ip4(&trap->sip)->addr)) ); +#endif + } + + /* generic trap */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 0); + snmp_asn1_enc_s32t_cnt(trap->gen_trap, &tlv.value_len); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, trap->gen_trap) ); + + /* specific trap */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 0); + snmp_asn1_enc_s32t_cnt(trap->spc_trap, &tlv.value_len); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, trap->spc_trap) ); + + /* timestamp */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_TIMETICKS, 0, 0); + snmp_asn1_enc_s32t_cnt(trap->ts, &tlv.value_len); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, trap->ts) ); + + return ERR_OK; +} + +/** + * @ingroup snmp_traps + * Encodes trap header part that is SNMP v2c header specific. + * + * @param trap Trap message + * @param pbuf_stream stream used for storing data inside pbuf + * @retval void + */ +static err_t +snmp_trap_header_enc_v2c_specific(struct snmp_msg_trap *trap, struct snmp_pbuf_stream *pbuf_stream) +{ + struct snmp_asn1_tlv tlv; + /* request id */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 0); + snmp_asn1_enc_s32t_cnt(req_id, &tlv.value_len); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, req_id) ); + + /* error status */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 0); + snmp_asn1_enc_s32t_cnt(trap->error_status, &tlv.value_len); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, trap->error_status) ); + + /* error index */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 0); + snmp_asn1_enc_s32t_cnt(trap->error_index, &tlv.value_len); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, trap->error_index) ); + + return ERR_OK; +} + +/** + * @ingroup snmp_traps + * Encodes trap header from head to tail. + * + * @param trap Trap message + * @param pbuf_stream stream used for storing data inside pbuf + * @retval void + */ +static err_t +snmp_trap_header_enc(struct snmp_msg_trap *trap, struct snmp_pbuf_stream *pbuf_stream) +{ + struct snmp_asn1_tlv tlv; + + /* 'Message' sequence */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_SEQUENCE, 0, trap->seqlen); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + + /* version */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_INTEGER, 0, 0); + snmp_asn1_enc_s32t_cnt(trap->snmp_version, &tlv.value_len); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_s32t(pbuf_stream, tlv.value_len, trap->snmp_version) ); + + /* community */ + SNMP_ASN1_SET_TLV_PARAMS(tlv, SNMP_ASN1_TYPE_OCTET_STRING, 0, trap->comlen); + BUILD_EXEC( snmp_ans1_enc_tlv(pbuf_stream, &tlv) ); + BUILD_EXEC( snmp_asn1_enc_raw(pbuf_stream, (const u8_t *)snmp_community_trap, trap->comlen) ); + + /* PDU */ + BUILD_EXEC( snmp_trap_header_enc_pdu(trap, pbuf_stream) ); + if (trap->snmp_version == SNMP_VERSION_1) { + /* object ID, IP addr, generic trap, specific trap, timestamp */ + BUILD_EXEC( snmp_trap_header_enc_v1_specific(trap, pbuf_stream) ); + } else if (SNMP_VERSION_2c == trap->snmp_version) { + /* request id, error status, error index */ + BUILD_EXEC( snmp_trap_header_enc_v2c_specific(trap, pbuf_stream) ); + } + + return ERR_OK; +} + +/** + * @ingroup snmp_traps + * Wrapper function for sending informs + * @param specific_trap will be appended to enterprise oid [see RFC 3584] + * @param varbinds linked list of varbinds (at the beginning of this list function will insert 2 special purpose varbinds [see RFC 3584]) + * @param ptr_request_id [out] variable in which to store request_id needed to verify acknowledgement + * @return ERR_OK if successful + */ +err_t +snmp_send_inform_specific(s32_t specific_trap, struct snmp_varbind *varbinds, s32_t *ptr_request_id) +{ + return snmp_send_inform(NULL, SNMP_GENTRAP_ENTERPRISE_SPECIFIC, specific_trap, varbinds, ptr_request_id); +} + +/** + * @ingroup snmp_traps + * Wrapper function for sending informs + * @param generic_trap is the trap code + * @param varbinds linked list of varbinds (at the beginning of this list function will insert 2 special purpose varbinds [see RFC 3584]) + * @param ptr_request_id [out] variable in which to store request_id needed to verify acknowledgement + * @return ERR_OK if successful + */ +err_t +snmp_send_inform_generic(s32_t generic_trap, struct snmp_varbind *varbinds, s32_t *ptr_request_id) +{ + return snmp_send_inform(NULL, generic_trap, 0, varbinds, ptr_request_id); +} + +/** + * @ingroup snmp_traps + * Generic function for sending informs + * @param oid points to object identifier + * @param generic_trap is the trap code + * @param specific_trap used for enterprise traps when generic_trap == 6 + * @param varbinds linked list of varbinds (at the beginning of this list function will insert 2 special purpose varbinds [see RFC 3584]) + * @param ptr_request_id [out] variable in which to store request_id needed to verify acknowledgement + * @return ERR_OK if successful + */ +err_t +snmp_send_inform(const struct snmp_obj_id* oid, s32_t generic_trap, s32_t specific_trap, struct snmp_varbind *varbinds, s32_t *ptr_request_id) +{ + struct snmp_msg_trap trap_msg = {0}; + trap_msg.snmp_version = SNMP_VERSION_2c; + trap_msg.trap_or_inform = SNMP_IS_INFORM; + *ptr_request_id = req_id; + return snmp_send_trap_or_notification_or_inform_generic(&trap_msg, oid, generic_trap, specific_trap, varbinds); +} + +#endif /* LWIP_SNMP */ diff --git a/middleware/lwip/src/apps/snmp/snmpv3.c b/middleware/lwip/src/apps/snmp/snmpv3.c new file mode 100644 index 0000000..ed5a076 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmpv3.c @@ -0,0 +1,136 @@ +/** + * @file + * Additional SNMPv3 functionality RFC3414 and RFC3826. + */ + +/* + * Copyright (c) 2016 Elias Oenal. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Elias Oenal + */ + +#include "snmpv3_priv.h" +#include "lwip/apps/snmpv3.h" +#include "lwip/sys.h" +#include + +#if LWIP_SNMP && LWIP_SNMP_V3 + +#ifdef LWIP_SNMPV3_INCLUDE_ENGINE +#include LWIP_SNMPV3_INCLUDE_ENGINE +#endif + +#define SNMP_MAX_TIME_BOOT 2147483647UL + +/** Call this if engine has been changed. Has to reset boots, see below */ +void +snmpv3_engine_id_changed(void) +{ + snmpv3_set_engine_boots(0); +} + +/** According to RFC3414 2.2.2. + * + * The number of times that the SNMP engine has + * (re-)initialized itself since snmpEngineID + * was last configured. + */ +s32_t +snmpv3_get_engine_boots_internal(void) +{ + if (snmpv3_get_engine_boots() == 0 || + snmpv3_get_engine_boots() < SNMP_MAX_TIME_BOOT) { + return snmpv3_get_engine_boots(); + } + + snmpv3_set_engine_boots(SNMP_MAX_TIME_BOOT); + return snmpv3_get_engine_boots(); +} + +/** RFC3414 2.2.2. + * + * Once the timer reaches 2147483647 it gets reset to zero and the + * engine boot ups get incremented. + */ +s32_t +snmpv3_get_engine_time_internal(void) +{ + if (snmpv3_get_engine_time() >= SNMP_MAX_TIME_BOOT) { + snmpv3_reset_engine_time(); + + if (snmpv3_get_engine_boots() < SNMP_MAX_TIME_BOOT - 1) { + snmpv3_set_engine_boots(snmpv3_get_engine_boots() + 1); + } else { + snmpv3_set_engine_boots(SNMP_MAX_TIME_BOOT); + } + } + + return snmpv3_get_engine_time(); +} + +#if LWIP_SNMP_V3_CRYPTO + +/* This function ignores the byte order suggestion in RFC3414 + * since it simply doesn't influence the effectiveness of an IV. + * + * Implementing RFC3826 priv param algorithm if LWIP_RAND is available. + * + * @todo: This is a potential thread safety issue. + */ +err_t +snmpv3_build_priv_param(u8_t *priv_param) +{ +#ifdef LWIP_RAND /* Based on RFC3826 */ + static u8_t init; + static u32_t priv1, priv2; + + /* Lazy initialisation */ + if (init == 0) { + init = 1; + priv1 = LWIP_RAND(); + priv2 = LWIP_RAND(); + } + + SMEMCPY(&priv_param[0], &priv1, sizeof(priv1)); + SMEMCPY(&priv_param[4], &priv2, sizeof(priv2)); + + /* Emulate 64bit increment */ + priv1++; + if (!priv1) { /* Overflow */ + priv2++; + } +#else /* Based on RFC3414 */ + static u32_t ctr; + u32_t boots = snmpv3_get_engine_boots_internal(); + SMEMCPY(&priv_param[0], &boots, 4); + SMEMCPY(&priv_param[4], &ctr, 4); + ctr++; +#endif + return ERR_OK; +} +#endif /* LWIP_SNMP_V3_CRYPTO */ + +#endif diff --git a/middleware/lwip/src/apps/snmp/snmpv3_mbedtls.c b/middleware/lwip/src/apps/snmp/snmpv3_mbedtls.c new file mode 100644 index 0000000..48c1a81 --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmpv3_mbedtls.c @@ -0,0 +1,342 @@ +/** + * @file + * SNMPv3 crypto/auth functions implemented for ARM mbedtls. + */ + +/* + * Copyright (c) 2016 Elias Oenal and Dirk Ziegelmeier. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Elias Oenal + * Dirk Ziegelmeier + */ + +#include "lwip/apps/snmpv3.h" +#include "snmpv3_priv.h" +#include "lwip/arch.h" +#include "snmp_msg.h" +#include "lwip/sys.h" +#include + +#if LWIP_SNMP && LWIP_SNMP_V3 && LWIP_SNMP_V3_MBEDTLS + +#include "mbedtls/md.h" +#include "mbedtls/cipher.h" + +#include "mbedtls/md5.h" +#include "mbedtls/sha1.h" + +err_t +snmpv3_auth(struct snmp_pbuf_stream *stream, u16_t length, + const u8_t *key, snmpv3_auth_algo_t algo, u8_t *hmac_out) +{ + u32_t i; + u8_t key_len; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t ctx; + struct snmp_pbuf_stream read_stream; + snmp_pbuf_stream_init(&read_stream, stream->pbuf, stream->offset, stream->length); + + if (algo == SNMP_V3_AUTH_ALGO_MD5) { + md_info = mbedtls_md_info_from_type(MBEDTLS_MD_MD5); + key_len = SNMP_V3_MD5_LEN; + } else if (algo == SNMP_V3_AUTH_ALGO_SHA) { + md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA1); + key_len = SNMP_V3_SHA_LEN; + } else { + return ERR_ARG; + } + + mbedtls_md_init(&ctx); + if (mbedtls_md_setup(&ctx, md_info, 1) != 0) { + return ERR_ARG; + } + + if (mbedtls_md_hmac_starts(&ctx, key, key_len) != 0) { + goto free_md; + } + + for (i = 0; i < length; i++) { + u8_t byte; + + if (snmp_pbuf_stream_read(&read_stream, &byte)) { + goto free_md; + } + + if (mbedtls_md_hmac_update(&ctx, &byte, 1) != 0) { + goto free_md; + } + } + + if (mbedtls_md_hmac_finish(&ctx, hmac_out) != 0) { + goto free_md; + } + + mbedtls_md_free(&ctx); + return ERR_OK; + +free_md: + mbedtls_md_free(&ctx); + return ERR_ARG; +} + +#if LWIP_SNMP_V3_CRYPTO + +err_t +snmpv3_crypt(struct snmp_pbuf_stream *stream, u16_t length, + const u8_t *key, const u8_t *priv_param, const u32_t engine_boots, + const u32_t engine_time, snmpv3_priv_algo_t algo, snmpv3_priv_mode_t mode) +{ + size_t i; + mbedtls_cipher_context_t ctx; + const mbedtls_cipher_info_t *cipher_info; + + struct snmp_pbuf_stream read_stream; + struct snmp_pbuf_stream write_stream; + snmp_pbuf_stream_init(&read_stream, stream->pbuf, stream->offset, stream->length); + snmp_pbuf_stream_init(&write_stream, stream->pbuf, stream->offset, stream->length); + mbedtls_cipher_init(&ctx); + + if (algo == SNMP_V3_PRIV_ALGO_DES) { + u8_t iv_local[8]; + u8_t out_bytes[8]; + size_t out_len; + + /* RFC 3414 mandates padding for DES */ + if ((length & 0x07) != 0) { + return ERR_ARG; + } + + cipher_info = mbedtls_cipher_info_from_type(MBEDTLS_CIPHER_DES_CBC); + if (mbedtls_cipher_setup(&ctx, cipher_info) != 0) { + return ERR_ARG; + } + if (mbedtls_cipher_set_padding_mode(&ctx, MBEDTLS_PADDING_NONE) != 0) { + return ERR_ARG; + } + if (mbedtls_cipher_setkey(&ctx, key, 8 * 8, (mode == SNMP_V3_PRIV_MODE_ENCRYPT) ? MBEDTLS_ENCRYPT : MBEDTLS_DECRYPT) != 0) { + goto error; + } + + /* Prepare IV */ + for (i = 0; i < LWIP_ARRAYSIZE(iv_local); i++) { + iv_local[i] = priv_param[i] ^ key[i + 8]; + } + if (mbedtls_cipher_set_iv(&ctx, iv_local, LWIP_ARRAYSIZE(iv_local)) != 0) { + goto error; + } + + for (i = 0; i < length; i += 8) { + size_t j; + u8_t in_bytes[8]; + out_len = LWIP_ARRAYSIZE(out_bytes) ; + + for (j = 0; j < LWIP_ARRAYSIZE(in_bytes); j++) { + if (snmp_pbuf_stream_read(&read_stream, &in_bytes[j]) != ERR_OK) { + goto error; + } + } + + if (mbedtls_cipher_update(&ctx, in_bytes, LWIP_ARRAYSIZE(in_bytes), out_bytes, &out_len) != 0) { + goto error; + } + + if (snmp_pbuf_stream_writebuf(&write_stream, out_bytes, (u16_t)out_len) != ERR_OK) { + goto error; + } + } + + out_len = LWIP_ARRAYSIZE(out_bytes); + if (mbedtls_cipher_finish(&ctx, out_bytes, &out_len) != 0) { + goto error; + } + + if (snmp_pbuf_stream_writebuf(&write_stream, out_bytes, (u16_t)out_len) != ERR_OK) { + goto error; + } + } else if (algo == SNMP_V3_PRIV_ALGO_AES) { + u8_t iv_local[16]; + + cipher_info = mbedtls_cipher_info_from_type(MBEDTLS_CIPHER_AES_128_CFB128); + if (mbedtls_cipher_setup(&ctx, cipher_info) != 0) { + return ERR_ARG; + } + if (mbedtls_cipher_setkey(&ctx, key, 16 * 8, (mode == SNMP_V3_PRIV_MODE_ENCRYPT) ? MBEDTLS_ENCRYPT : MBEDTLS_DECRYPT) != 0) { + goto error; + } + + /* + * IV is the big endian concatenation of boots, + * uptime and priv param - see RFC3826. + */ + iv_local[0 + 0] = (engine_boots >> 24) & 0xFF; + iv_local[0 + 1] = (engine_boots >> 16) & 0xFF; + iv_local[0 + 2] = (engine_boots >> 8) & 0xFF; + iv_local[0 + 3] = (engine_boots >> 0) & 0xFF; + iv_local[4 + 0] = (engine_time >> 24) & 0xFF; + iv_local[4 + 1] = (engine_time >> 16) & 0xFF; + iv_local[4 + 2] = (engine_time >> 8) & 0xFF; + iv_local[4 + 3] = (engine_time >> 0) & 0xFF; + SMEMCPY(iv_local + 8, priv_param, 8); + if (mbedtls_cipher_set_iv(&ctx, iv_local, LWIP_ARRAYSIZE(iv_local)) != 0) { + goto error; + } + + for (i = 0; i < length; i++) { + u8_t in_byte; + u8_t out_byte; + size_t out_len = sizeof(out_byte); + + if (snmp_pbuf_stream_read(&read_stream, &in_byte) != ERR_OK) { + goto error; + } + if (mbedtls_cipher_update(&ctx, &in_byte, sizeof(in_byte), &out_byte, &out_len) != 0) { + goto error; + } + if (snmp_pbuf_stream_write(&write_stream, out_byte) != ERR_OK) { + goto error; + } + } + } else { + return ERR_ARG; + } + + mbedtls_cipher_free(&ctx); + return ERR_OK; + +error: + mbedtls_cipher_free(&ctx); + return ERR_OK; +} + +#endif /* LWIP_SNMP_V3_CRYPTO */ + +/* A.2.1. Password to Key Sample Code for MD5 */ +void +snmpv3_password_to_key_md5( + const u8_t *password, /* IN */ + size_t passwordlen, /* IN */ + const u8_t *engineID, /* IN - pointer to snmpEngineID */ + u8_t engineLength,/* IN - length of snmpEngineID */ + u8_t *key) /* OUT - pointer to caller 16-octet buffer */ +{ + mbedtls_md5_context MD; + u8_t *cp, password_buf[64]; + u32_t password_index = 0; + u8_t i; + u32_t count = 0; + + mbedtls_md5_init(&MD); /* initialize MD5 */ + mbedtls_md5_starts(&MD); + + /**********************************************/ + /* Use while loop until we've done 1 Megabyte */ + /**********************************************/ + while (count < 1048576) { + cp = password_buf; + for (i = 0; i < 64; i++) { + /*************************************************/ + /* Take the next octet of the password, wrapping */ + /* to the beginning of the password as necessary.*/ + /*************************************************/ + *cp++ = password[password_index++ % passwordlen]; + } + mbedtls_md5_update(&MD, password_buf, 64); + count += 64; + } + mbedtls_md5_finish(&MD, key); /* tell MD5 we're done */ + + /*****************************************************/ + /* Now localize the key with the engineID and pass */ + /* through MD5 to produce final key */ + /* May want to ensure that engineLength <= 32, */ + /* otherwise need to use a buffer larger than 64 */ + /*****************************************************/ + SMEMCPY(password_buf, key, 16); + MEMCPY(password_buf + 16, engineID, engineLength); + SMEMCPY(password_buf + 16 + engineLength, key, 16); + + mbedtls_md5_starts(&MD); + mbedtls_md5_update(&MD, password_buf, 32 + engineLength); + mbedtls_md5_finish(&MD, key); + + mbedtls_md5_free(&MD); + return; +} + +/* A.2.2. Password to Key Sample Code for SHA */ +void +snmpv3_password_to_key_sha( + const u8_t *password, /* IN */ + size_t passwordlen, /* IN */ + const u8_t *engineID, /* IN - pointer to snmpEngineID */ + u8_t engineLength,/* IN - length of snmpEngineID */ + u8_t *key) /* OUT - pointer to caller 20-octet buffer */ +{ + mbedtls_sha1_context SH; + u8_t *cp, password_buf[72]; + u32_t password_index = 0; + u8_t i; + u32_t count = 0; + + mbedtls_sha1_init(&SH); /* initialize SHA */ + mbedtls_sha1_starts(&SH); + + /**********************************************/ + /* Use while loop until we've done 1 Megabyte */ + /**********************************************/ + while (count < 1048576) { + cp = password_buf; + for (i = 0; i < 64; i++) { + /*************************************************/ + /* Take the next octet of the password, wrapping */ + /* to the beginning of the password as necessary.*/ + /*************************************************/ + *cp++ = password[password_index++ % passwordlen]; + } + mbedtls_sha1_update(&SH, password_buf, 64); + count += 64; + } + mbedtls_sha1_finish(&SH, key); /* tell SHA we're done */ + + /*****************************************************/ + /* Now localize the key with the engineID and pass */ + /* through SHA to produce final key */ + /* May want to ensure that engineLength <= 32, */ + /* otherwise need to use a buffer larger than 72 */ + /*****************************************************/ + SMEMCPY(password_buf, key, 20); + MEMCPY(password_buf + 20, engineID, engineLength); + SMEMCPY(password_buf + 20 + engineLength, key, 20); + + mbedtls_sha1_starts(&SH); + mbedtls_sha1_update(&SH, password_buf, 40 + engineLength); + mbedtls_sha1_finish(&SH, key); + + mbedtls_sha1_free(&SH); + return; +} + +#endif /* LWIP_SNMP && LWIP_SNMP_V3 && LWIP_SNMP_V3_MBEDTLS */ diff --git a/middleware/lwip/src/apps/snmp/snmpv3_priv.h b/middleware/lwip/src/apps/snmp/snmpv3_priv.h new file mode 100644 index 0000000..323364c --- /dev/null +++ b/middleware/lwip/src/apps/snmp/snmpv3_priv.h @@ -0,0 +1,69 @@ +/** + * @file + * Additional SNMPv3 functionality RFC3414 and RFC3826 (internal API, do not use in client code). + */ + +/* + * Copyright (c) 2016 Elias Oenal. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Elias Oenal + */ + +#ifndef LWIP_HDR_APPS_SNMP_V3_PRIV_H +#define LWIP_HDR_APPS_SNMP_V3_PRIV_H + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP && LWIP_SNMP_V3 + +#include "lwip/apps/snmpv3.h" +#include "snmp_pbuf_stream.h" + +/* According to RFC 3411 */ +#define SNMP_V3_MAX_ENGINE_ID_LENGTH 32 +#define SNMP_V3_MAX_USER_LENGTH 32 + +#define SNMP_V3_MAX_AUTH_PARAM_LENGTH 12 +#define SNMP_V3_MAX_PRIV_PARAM_LENGTH 8 + +#define SNMP_V3_MD5_LEN 16 +#define SNMP_V3_SHA_LEN 20 + +typedef enum { + SNMP_V3_PRIV_MODE_DECRYPT = 0, + SNMP_V3_PRIV_MODE_ENCRYPT = 1 +} snmpv3_priv_mode_t; + +s32_t snmpv3_get_engine_boots_internal(void); +err_t snmpv3_auth(struct snmp_pbuf_stream *stream, u16_t length, const u8_t *key, snmpv3_auth_algo_t algo, u8_t *hmac_out); +err_t snmpv3_crypt(struct snmp_pbuf_stream *stream, u16_t length, const u8_t *key, + const u8_t *priv_param, const u32_t engine_boots, const u32_t engine_time, snmpv3_priv_algo_t algo, snmpv3_priv_mode_t mode); +err_t snmpv3_build_priv_param(u8_t *priv_param); +void snmpv3_enginetime_timer(void *arg); + +#endif + +#endif /* LWIP_HDR_APPS_SNMP_V3_PRIV_H */ diff --git a/middleware/lwip/src/apps/sntp/sntp.c b/middleware/lwip/src/apps/sntp/sntp.c new file mode 100644 index 0000000..0e7f365 --- /dev/null +++ b/middleware/lwip/src/apps/sntp/sntp.c @@ -0,0 +1,948 @@ +/** + * @file + * SNTP client module + */ + +/* + * Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Frédéric Bernon, Simon Goldschmidt + */ + + +/** + * @defgroup sntp SNTP + * @ingroup apps + * + * This is simple "SNTP" client for the lwIP raw API. + * It is a minimal implementation of SNTPv4 as specified in RFC 4330. + * + * You need to increase MEMP_NUM_SYS_TIMEOUT by one if you use SNTP! + * + * For a list of some public NTP servers, see this link: + * http://support.ntp.org/bin/view/Servers/NTPPoolServers + * + * @todo: + * - complete SNTP_CHECK_RESPONSE checks 3 and 4 + */ + +#include "lwip/apps/sntp.h" + +#include "lwip/opt.h" +#include "lwip/timeouts.h" +#include "lwip/udp.h" +#include "lwip/dns.h" +#include "lwip/ip_addr.h" +#include "lwip/pbuf.h" +#include "lwip/dhcp.h" + +#include +#include + +#if LWIP_UDP + +/* Handle support for more than one server via SNTP_MAX_SERVERS */ +#if SNTP_MAX_SERVERS > 1 +#define SNTP_SUPPORT_MULTIPLE_SERVERS 1 +#else /* NTP_MAX_SERVERS > 1 */ +#define SNTP_SUPPORT_MULTIPLE_SERVERS 0 +#endif /* NTP_MAX_SERVERS > 1 */ + +#ifndef SNTP_SUPPRESS_DELAY_CHECK +#if SNTP_UPDATE_DELAY < 15000 +#error "SNTPv4 RFC 4330 enforces a minimum update time of 15 seconds (define SNTP_SUPPRESS_DELAY_CHECK to disable this error)!" +#endif +#endif + +/* the various debug levels for this file */ +#define SNTP_DEBUG_TRACE (SNTP_DEBUG | LWIP_DBG_TRACE) +#define SNTP_DEBUG_STATE (SNTP_DEBUG | LWIP_DBG_STATE) +#define SNTP_DEBUG_WARN (SNTP_DEBUG | LWIP_DBG_LEVEL_WARNING) +#define SNTP_DEBUG_WARN_STATE (SNTP_DEBUG | LWIP_DBG_LEVEL_WARNING | LWIP_DBG_STATE) +#define SNTP_DEBUG_SERIOUS (SNTP_DEBUG | LWIP_DBG_LEVEL_SERIOUS) + +#define SNTP_ERR_KOD 1 + +/* SNTP protocol defines */ +#define SNTP_MSG_LEN 48 + +#define SNTP_OFFSET_LI_VN_MODE 0 +#define SNTP_LI_MASK 0xC0 +#define SNTP_LI_NO_WARNING (0x00 << 6) +#define SNTP_LI_LAST_MINUTE_61_SEC (0x01 << 6) +#define SNTP_LI_LAST_MINUTE_59_SEC (0x02 << 6) +#define SNTP_LI_ALARM_CONDITION (0x03 << 6) /* (clock not synchronized) */ + +#define SNTP_VERSION_MASK 0x38 +#define SNTP_VERSION (4/* NTP Version 4*/<<3) + +#define SNTP_MODE_MASK 0x07 +#define SNTP_MODE_CLIENT 0x03 +#define SNTP_MODE_SERVER 0x04 +#define SNTP_MODE_BROADCAST 0x05 + +#define SNTP_OFFSET_STRATUM 1 +#define SNTP_STRATUM_KOD 0x00 + +#define SNTP_OFFSET_ORIGINATE_TIME 24 +#define SNTP_OFFSET_RECEIVE_TIME 32 +#define SNTP_OFFSET_TRANSMIT_TIME 40 + +/* Number of seconds between 1970 and Feb 7, 2036 06:28:16 UTC (epoch 1) */ +#define DIFF_SEC_1970_2036 ((u32_t)2085978496L) + +/** Convert NTP timestamp fraction to microseconds. + */ +#ifndef SNTP_FRAC_TO_US +# if LWIP_HAVE_INT64 +# define SNTP_FRAC_TO_US(f) ((u32_t)(((u64_t)(f) * 1000000UL) >> 32)) +# else +# define SNTP_FRAC_TO_US(f) ((u32_t)(f) / 4295) +# endif +#endif /* !SNTP_FRAC_TO_US */ + +/* Configure behaviour depending on native, microsecond or second precision. + * Treat NTP timestamps as signed two's-complement integers. This way, + * timestamps that have the MSB set simply become negative offsets from + * the epoch (Feb 7, 2036 06:28:16 UTC). Representable dates range from + * 1968 to 2104. + */ +#ifndef SNTP_SET_SYSTEM_TIME_NTP +# ifdef SNTP_SET_SYSTEM_TIME_US +# define SNTP_SET_SYSTEM_TIME_NTP(s, f) \ + SNTP_SET_SYSTEM_TIME_US((u32_t)((s) + DIFF_SEC_1970_2036), SNTP_FRAC_TO_US(f)) +# else +# define SNTP_SET_SYSTEM_TIME_NTP(s, f) \ + SNTP_SET_SYSTEM_TIME((u32_t)((s) + DIFF_SEC_1970_2036)) +# endif +#endif /* !SNTP_SET_SYSTEM_TIME_NTP */ + +/* Get the system time either natively as NTP timestamp or convert from + * Unix time in seconds and microseconds. Take care to avoid overflow if the + * microsecond value is at the maximum of 999999. Also add 0.5 us fudge to + * avoid special values like 0, and to mask round-off errors that would + * otherwise break round-trip conversion identity. + */ +#ifndef SNTP_GET_SYSTEM_TIME_NTP +# define SNTP_GET_SYSTEM_TIME_NTP(s, f) do { \ + u32_t sec_, usec_; \ + SNTP_GET_SYSTEM_TIME(sec_, usec_); \ + (s) = (s32_t)(sec_ - DIFF_SEC_1970_2036); \ + (f) = usec_ * 4295 - ((usec_ * 2143) >> 16) + 2147; \ + } while (0) +#endif /* !SNTP_GET_SYSTEM_TIME_NTP */ + +/* Start offset of the timestamps to extract from the SNTP packet */ +#define SNTP_OFFSET_TIMESTAMPS \ + (SNTP_OFFSET_TRANSMIT_TIME + 8 - sizeof(struct sntp_timestamps)) + +/* Round-trip delay arithmetic helpers */ +#if SNTP_COMP_ROUNDTRIP +# if !LWIP_HAVE_INT64 +# error "SNTP round-trip delay compensation requires 64-bit arithmetic" +# endif +# define SNTP_SEC_FRAC_TO_S64(s, f) \ + ((s64_t)(((u64_t)(s) << 32) | (u32_t)(f))) +# define SNTP_TIMESTAMP_TO_S64(t) \ + SNTP_SEC_FRAC_TO_S64(lwip_ntohl((t).sec), lwip_ntohl((t).frac)) +#endif /* SNTP_COMP_ROUNDTRIP */ + +/** + * 64-bit NTP timestamp, in network byte order. + */ +struct sntp_time { + u32_t sec; + u32_t frac; +}; + +/** + * Timestamps to be extracted from the NTP header. + */ +struct sntp_timestamps { +#if SNTP_COMP_ROUNDTRIP || SNTP_CHECK_RESPONSE >= 2 + struct sntp_time orig; + struct sntp_time recv; +#endif + struct sntp_time xmit; +}; + +/** + * SNTP packet format (without optional fields) + * Timestamps are coded as 64 bits: + * - signed 32 bits seconds since Feb 07, 2036, 06:28:16 UTC (epoch 1) + * - unsigned 32 bits seconds fraction (2^32 = 1 second) + */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct sntp_msg { + PACK_STRUCT_FLD_8(u8_t li_vn_mode); + PACK_STRUCT_FLD_8(u8_t stratum); + PACK_STRUCT_FLD_8(u8_t poll); + PACK_STRUCT_FLD_8(u8_t precision); + PACK_STRUCT_FIELD(u32_t root_delay); + PACK_STRUCT_FIELD(u32_t root_dispersion); + PACK_STRUCT_FIELD(u32_t reference_identifier); + PACK_STRUCT_FIELD(u32_t reference_timestamp[2]); + PACK_STRUCT_FIELD(u32_t originate_timestamp[2]); + PACK_STRUCT_FIELD(u32_t receive_timestamp[2]); + PACK_STRUCT_FIELD(u32_t transmit_timestamp[2]); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/* function prototypes */ +static void sntp_request(void *arg); + +/** The operating mode */ +static u8_t sntp_opmode; + +/** The UDP pcb used by the SNTP client */ +static struct udp_pcb *sntp_pcb; +/** Names/Addresses of servers */ +struct sntp_server { +#if SNTP_SERVER_DNS + const char *name; +#endif /* SNTP_SERVER_DNS */ + ip_addr_t addr; +#if SNTP_MONITOR_SERVER_REACHABILITY + /** Reachability shift register as described in RFC 5905 */ + u8_t reachability; +#endif /* SNTP_MONITOR_SERVER_REACHABILITY */ +#if SNTP_SUPPORT_MULTIPLE_SERVERS + u8_t kod_received; +#endif +}; +static struct sntp_server sntp_servers[SNTP_MAX_SERVERS]; + +#if SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6 +static u8_t sntp_set_servers_from_dhcp; +#endif /* SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6 */ +#if SNTP_SUPPORT_MULTIPLE_SERVERS +/** The currently used server (initialized to 0) */ +static u8_t sntp_current_server; +#else /* SNTP_SUPPORT_MULTIPLE_SERVERS */ +#define sntp_current_server 0 +#endif /* SNTP_SUPPORT_MULTIPLE_SERVERS */ + +#if SNTP_RETRY_TIMEOUT_EXP +#define SNTP_RESET_RETRY_TIMEOUT() sntp_retry_timeout = SNTP_RETRY_TIMEOUT +/** Retry time, initialized with SNTP_RETRY_TIMEOUT and doubled with each retry. */ +static u32_t sntp_retry_timeout; +#else /* SNTP_RETRY_TIMEOUT_EXP */ +#define SNTP_RESET_RETRY_TIMEOUT() +#define sntp_retry_timeout SNTP_RETRY_TIMEOUT +#endif /* SNTP_RETRY_TIMEOUT_EXP */ + +#if SNTP_CHECK_RESPONSE >= 1 +/** Saves the last server address to compare with response */ +static ip_addr_t sntp_last_server_address; +#endif /* SNTP_CHECK_RESPONSE >= 1 */ + +#if SNTP_CHECK_RESPONSE >= 2 +/** Saves the last timestamp sent (which is sent back by the server) + * to compare against in response. Stored in network byte order. */ +static struct sntp_time sntp_last_timestamp_sent; +#endif /* SNTP_CHECK_RESPONSE >= 2 */ + +#if defined(LWIP_DEBUG) && !defined(sntp_format_time) +/* Debug print helper. */ +static const char * +sntp_format_time(s32_t sec) +{ + time_t ut; + ut = (u32_t)((u32_t)sec + DIFF_SEC_1970_2036); + return ctime(&ut); +} +#endif /* LWIP_DEBUG && !sntp_format_time */ + +/** + * SNTP processing of received timestamp + */ +static void +sntp_process(const struct sntp_timestamps *timestamps) +{ + s32_t sec; + u32_t frac; + + sec = (s32_t)lwip_ntohl(timestamps->xmit.sec); + frac = lwip_ntohl(timestamps->xmit.frac); + +#if SNTP_COMP_ROUNDTRIP +# if SNTP_CHECK_RESPONSE >= 2 + if (timestamps->recv.sec != 0 || timestamps->recv.frac != 0) +# endif + { + s32_t dest_sec; + u32_t dest_frac; + u32_t step_sec; + + /* Get the destination time stamp, i.e. the current system time */ + SNTP_GET_SYSTEM_TIME_NTP(dest_sec, dest_frac); + + step_sec = (dest_sec < sec) ? ((u32_t)sec - (u32_t)dest_sec) + : ((u32_t)dest_sec - (u32_t)sec); + /* In order to avoid overflows, skip the compensation if the clock step + * is larger than about 34 years. */ + if ((step_sec >> 30) == 0) { + s64_t t1, t2, t3, t4; + + t4 = SNTP_SEC_FRAC_TO_S64(dest_sec, dest_frac); + t3 = SNTP_SEC_FRAC_TO_S64(sec, frac); + t1 = SNTP_TIMESTAMP_TO_S64(timestamps->orig); + t2 = SNTP_TIMESTAMP_TO_S64(timestamps->recv); + /* Clock offset calculation according to RFC 4330 */ + t4 += ((t2 - t1) + (t3 - t4)) / 2; + + sec = (s32_t)((u64_t)t4 >> 32); + frac = (u32_t)((u64_t)t4); + } + } +#endif /* SNTP_COMP_ROUNDTRIP */ + + SNTP_SET_SYSTEM_TIME_NTP(sec, frac); + LWIP_UNUSED_ARG(frac); /* might be unused if only seconds are set */ + LWIP_DEBUGF(SNTP_DEBUG_TRACE, ("sntp_process: %s, %" U32_F " us\n", + sntp_format_time(sec), SNTP_FRAC_TO_US(frac))); +} + +/** + * Initialize request struct to be sent to server. + */ +static void +sntp_initialize_request(struct sntp_msg *req) +{ + memset(req, 0, SNTP_MSG_LEN); + req->li_vn_mode = SNTP_LI_NO_WARNING | SNTP_VERSION | SNTP_MODE_CLIENT; + +#if SNTP_CHECK_RESPONSE >= 2 || SNTP_COMP_ROUNDTRIP + { + s32_t secs; + u32_t sec, frac; + /* Get the transmit timestamp */ + SNTP_GET_SYSTEM_TIME_NTP(secs, frac); + sec = lwip_htonl((u32_t)secs); + frac = lwip_htonl(frac); + +# if SNTP_CHECK_RESPONSE >= 2 + sntp_last_timestamp_sent.sec = sec; + sntp_last_timestamp_sent.frac = frac; +# endif + req->transmit_timestamp[0] = sec; + req->transmit_timestamp[1] = frac; + } +#endif /* SNTP_CHECK_RESPONSE >= 2 || SNTP_COMP_ROUNDTRIP */ +} + +/** + * Retry: send a new request (and increase retry timeout). + * + * @param arg is unused (only necessary to conform to sys_timeout) + */ +static void +sntp_retry(void *arg) +{ + LWIP_UNUSED_ARG(arg); + + LWIP_DEBUGF(SNTP_DEBUG_STATE, ("sntp_retry: Next request will be sent in %"U32_F" ms\n", + sntp_retry_timeout)); + + /* set up a timer to send a retry and increase the retry delay */ + sys_untimeout(sntp_request, NULL); + sys_timeout(sntp_retry_timeout, sntp_request, NULL); + +#if SNTP_RETRY_TIMEOUT_EXP + { + u32_t new_retry_timeout; + /* increase the timeout for next retry */ + new_retry_timeout = sntp_retry_timeout << 1; + /* limit to maximum timeout and prevent overflow */ + if ((new_retry_timeout <= SNTP_RETRY_TIMEOUT_MAX) && + (new_retry_timeout > sntp_retry_timeout)) { + sntp_retry_timeout = new_retry_timeout; + } else { + sntp_retry_timeout = SNTP_RETRY_TIMEOUT_MAX; + } + } +#endif /* SNTP_RETRY_TIMEOUT_EXP */ +} + +#if SNTP_SUPPORT_MULTIPLE_SERVERS +/** + * If Kiss-of-Death is received (or another packet parsing error), + * try the next server or retry the current server and increase the retry + * timeout if only one server is available. + * (implicitly, SNTP_MAX_SERVERS > 1) + * + * @param arg is unused (only necessary to conform to sys_timeout) + */ +static void +sntp_try_next_server(void *arg) +{ + u8_t old_server, i; + LWIP_UNUSED_ARG(arg); + + old_server = sntp_current_server; + for (i = 0; i < SNTP_MAX_SERVERS - 1; i++) { + sntp_current_server++; + if (sntp_current_server >= SNTP_MAX_SERVERS) { + sntp_current_server = 0; + } + if (sntp_servers[sntp_current_server].kod_received) { + /* KOD received, don't use this server */ + continue; + } + if (!ip_addr_isany(&sntp_servers[sntp_current_server].addr) +#if SNTP_SERVER_DNS + || (sntp_servers[sntp_current_server].name != NULL) +#endif + ) { + LWIP_DEBUGF(SNTP_DEBUG_STATE, ("sntp_try_next_server: Sending request to server %"U16_F"\n", + (u16_t)sntp_current_server)); + /* new server: reset retry timeout */ + SNTP_RESET_RETRY_TIMEOUT(); + /* instantly send a request to the next server */ + sntp_request(NULL); + return; + } + } + /* no other valid server found */ + sntp_current_server = old_server; + sntp_retry(NULL); +} + +static void +sntp_kod_try_next_server(void *arg) +{ + sntp_servers[sntp_current_server].kod_received = 1; + sntp_try_next_server(arg); +} + +#else /* SNTP_SUPPORT_MULTIPLE_SERVERS */ +/* Always retry on error if only one server is supported */ +#define sntp_try_next_server sntp_retry +#define sntp_kod_try_next_server sntp_retry +#endif /* SNTP_SUPPORT_MULTIPLE_SERVERS */ + +/** UDP recv callback for the sntp pcb */ +static void +sntp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) +{ + struct sntp_timestamps timestamps; + u8_t mode; + u8_t stratum; + err_t err; + + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(pcb); + + err = ERR_ARG; +#if SNTP_CHECK_RESPONSE >= 1 + /* check server address and port */ + if (((sntp_opmode != SNTP_OPMODE_POLL) || ip_addr_eq(addr, &sntp_last_server_address)) && + (port == SNTP_PORT)) +#else /* SNTP_CHECK_RESPONSE >= 1 */ + LWIP_UNUSED_ARG(addr); + LWIP_UNUSED_ARG(port); +#endif /* SNTP_CHECK_RESPONSE >= 1 */ + { + /* process the response */ + if (p->tot_len == SNTP_MSG_LEN) { + mode = pbuf_get_at(p, SNTP_OFFSET_LI_VN_MODE) & SNTP_MODE_MASK; + /* if this is a SNTP response... */ + if (((sntp_opmode == SNTP_OPMODE_POLL) && (mode == SNTP_MODE_SERVER)) || + ((sntp_opmode == SNTP_OPMODE_LISTENONLY) && (mode == SNTP_MODE_BROADCAST))) { + stratum = pbuf_get_at(p, SNTP_OFFSET_STRATUM); + + if (stratum == SNTP_STRATUM_KOD) { + /* Kiss-of-death packet. Use another server or increase UPDATE_DELAY. */ + err = SNTP_ERR_KOD; + LWIP_DEBUGF(SNTP_DEBUG_STATE, ("sntp_recv: Received Kiss-of-Death\n")); + } else { + pbuf_copy_partial(p, ×tamps, sizeof(timestamps), SNTP_OFFSET_TIMESTAMPS); +#if SNTP_CHECK_RESPONSE >= 2 + /* check originate_timetamp against sntp_last_timestamp_sent */ + if (timestamps.orig.sec != sntp_last_timestamp_sent.sec || + timestamps.orig.frac != sntp_last_timestamp_sent.frac) { + LWIP_DEBUGF(SNTP_DEBUG_WARN, + ("sntp_recv: Invalid originate timestamp in response\n")); + } else +#endif /* SNTP_CHECK_RESPONSE >= 2 */ + /* @todo: add code for SNTP_CHECK_RESPONSE >= 3 and >= 4 here */ + { + /* correct answer */ + err = ERR_OK; + } + } + } else { + LWIP_DEBUGF(SNTP_DEBUG_WARN, ("sntp_recv: Invalid mode in response: %"U16_F"\n", (u16_t)mode)); + /* wait for correct response */ + err = ERR_TIMEOUT; + } + } else { + LWIP_DEBUGF(SNTP_DEBUG_WARN, ("sntp_recv: Invalid packet length: %"U16_F"\n", p->tot_len)); + } + } +#if SNTP_CHECK_RESPONSE >= 1 + else { + /* packet from wrong remote address or port, wait for correct response */ + err = ERR_TIMEOUT; + } +#endif /* SNTP_CHECK_RESPONSE >= 1 */ + + pbuf_free(p); + + if (err == ERR_OK) { + /* correct packet received: process it it */ + sntp_process(×tamps); + +#if SNTP_MONITOR_SERVER_REACHABILITY + /* indicate that server responded */ + sntp_servers[sntp_current_server].reachability |= 1; +#endif /* SNTP_MONITOR_SERVER_REACHABILITY */ + /* Set up timeout for next request (only if poll response was received)*/ + if (sntp_opmode == SNTP_OPMODE_POLL) { + u32_t sntp_update_delay; + sys_untimeout(sntp_try_next_server, NULL); + sys_untimeout(sntp_request, NULL); + + /* Correct response, reset retry timeout */ + SNTP_RESET_RETRY_TIMEOUT(); + + sntp_update_delay = (u32_t)SNTP_UPDATE_DELAY; + sys_timeout(sntp_update_delay, sntp_request, NULL); + LWIP_DEBUGF(SNTP_DEBUG_STATE, ("sntp_recv: Scheduled next time request: %"U32_F" ms\n", + sntp_update_delay)); + } + } else if (err == SNTP_ERR_KOD) { + /* KOD errors are only processed in case of an explicit poll response */ + if (sntp_opmode == SNTP_OPMODE_POLL) { + /* Kiss-of-death packet. Use another server or increase UPDATE_DELAY. */ + sntp_kod_try_next_server(NULL); + } + } else { + /* ignore any broken packet, poll mode: retry after timeout to avoid flooding */ + } +} + +/** Actually send an sntp request to a server. + * + * @param server_addr resolved IP address of the SNTP server + */ +static void +sntp_send_request(const ip_addr_t *server_addr) +{ + struct pbuf *p; + + LWIP_ASSERT("server_addr != NULL", server_addr != NULL); + + p = pbuf_alloc(PBUF_TRANSPORT, SNTP_MSG_LEN, PBUF_RAM); + if (p != NULL) { + struct sntp_msg *sntpmsg = (struct sntp_msg *)p->payload; + LWIP_DEBUGF(SNTP_DEBUG_STATE, ("sntp_send_request: Sending request to server\n")); + /* initialize request message */ + sntp_initialize_request(sntpmsg); + /* send request */ + udp_sendto(sntp_pcb, p, server_addr, SNTP_PORT); + /* free the pbuf after sending it */ + pbuf_free(p); +#if SNTP_MONITOR_SERVER_REACHABILITY + /* indicate new packet has been sent */ + sntp_servers[sntp_current_server].reachability <<= 1; +#endif /* SNTP_MONITOR_SERVER_REACHABILITY */ + /* set up receive timeout: try next server or retry on timeout */ + sys_untimeout(sntp_try_next_server, NULL); + sys_timeout((u32_t)SNTP_RECV_TIMEOUT, sntp_try_next_server, NULL); +#if SNTP_CHECK_RESPONSE >= 1 + /* save server address to verify it in sntp_recv */ + ip_addr_copy(sntp_last_server_address, *server_addr); +#endif /* SNTP_CHECK_RESPONSE >= 1 */ + } else { + LWIP_DEBUGF(SNTP_DEBUG_SERIOUS, ("sntp_send_request: Out of memory, trying again in %"U32_F" ms\n", + (u32_t)SNTP_RETRY_TIMEOUT)); + /* out of memory: set up a timer to send a retry */ + sys_untimeout(sntp_request, NULL); + sys_timeout((u32_t)SNTP_RETRY_TIMEOUT, sntp_request, NULL); + } +} + +#if SNTP_SERVER_DNS +/** + * DNS found callback when using DNS names as server address. + */ +static void +sntp_dns_found(const char *hostname, const ip_addr_t *ipaddr, void *arg) +{ + LWIP_UNUSED_ARG(hostname); + LWIP_UNUSED_ARG(arg); + + if (ipaddr != NULL) { + /* Address resolved, send request */ + LWIP_DEBUGF(SNTP_DEBUG_STATE, ("sntp_dns_found: Server address resolved, sending request\n")); + sntp_servers[sntp_current_server].addr = *ipaddr; + sntp_send_request(ipaddr); + } else { + /* DNS resolving failed -> try another server */ + LWIP_DEBUGF(SNTP_DEBUG_WARN_STATE, ("sntp_dns_found: Failed to resolve server address resolved, trying next server\n")); + sntp_try_next_server(NULL); + } +} +#endif /* SNTP_SERVER_DNS */ + +/** + * Send out an sntp request. + * + * @param arg is unused (only necessary to conform to sys_timeout) + */ +static void +sntp_request(void *arg) +{ + ip_addr_t sntp_server_address; + err_t err; + + LWIP_UNUSED_ARG(arg); + + /* initialize SNTP server address */ +#if SNTP_SERVER_DNS + if (sntp_servers[sntp_current_server].name) { + /* always resolve the name and rely on dns-internal caching & timeout */ + ip_addr_set_zero(&sntp_servers[sntp_current_server].addr); + err = dns_gethostbyname(sntp_servers[sntp_current_server].name, &sntp_server_address, + sntp_dns_found, NULL); + if (err == ERR_INPROGRESS) { + /* DNS request sent, wait for sntp_dns_found being called */ + LWIP_DEBUGF(SNTP_DEBUG_STATE, ("sntp_request: Waiting for server address to be resolved.\n")); + return; + } else if (err == ERR_OK) { + sntp_servers[sntp_current_server].addr = sntp_server_address; + } + } else +#endif /* SNTP_SERVER_DNS */ + { + sntp_server_address = sntp_servers[sntp_current_server].addr; + err = (ip_addr_isany_val(sntp_server_address)) ? ERR_ARG : ERR_OK; + } + + if (err == ERR_OK) { + LWIP_DEBUGF(SNTP_DEBUG_TRACE, ("sntp_request: current server address is %s\n", + ipaddr_ntoa(&sntp_server_address))); + sntp_send_request(&sntp_server_address); + } else { + /* address conversion failed, try another server */ + LWIP_DEBUGF(SNTP_DEBUG_WARN_STATE, ("sntp_request: Invalid server address, trying next server.\n")); + sys_untimeout(sntp_try_next_server, NULL); + sys_timeout((u32_t)SNTP_RETRY_TIMEOUT, sntp_try_next_server, NULL); + } +} + +/** + * @ingroup sntp + * Initialize this module. + * Send out request instantly or after SNTP_STARTUP_DELAY(_FUNC). + */ +void +sntp_init(void) +{ + /* LWIP_ASSERT_CORE_LOCKED(); is checked by udp_new() */ + LWIP_DEBUGF(SNTP_DEBUG_TRACE, ("sntp_init: SNTP initialised\n")); + +#ifdef SNTP_SERVER_ADDRESS +#if SNTP_SERVER_DNS + sntp_setservername(0, SNTP_SERVER_ADDRESS); +#else +#error SNTP_SERVER_ADDRESS string not supported SNTP_SERVER_DNS==0 +#endif +#endif /* SNTP_SERVER_ADDRESS */ + + if (sntp_pcb == NULL) { + sntp_pcb = udp_new_ip_type(IPADDR_TYPE_ANY); + LWIP_ASSERT("Failed to allocate udp pcb for sntp client", sntp_pcb != NULL); + if (sntp_pcb != NULL) { + udp_recv(sntp_pcb, sntp_recv, NULL); + + if (sntp_opmode == SNTP_OPMODE_POLL) { + SNTP_RESET_RETRY_TIMEOUT(); +#if SNTP_STARTUP_DELAY + sys_timeout((u32_t)SNTP_STARTUP_DELAY_FUNC, sntp_request, NULL); +#else + sntp_request(NULL); +#endif + } else if (sntp_opmode == SNTP_OPMODE_LISTENONLY) { + ip_set_option(sntp_pcb, SOF_BROADCAST); + udp_bind(sntp_pcb, IP_ANY_TYPE, SNTP_PORT); + } + } + } +} + +/** + * @ingroup sntp + * Stop this module. + */ +void +sntp_stop(void) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (sntp_pcb != NULL) { +#if SNTP_MONITOR_SERVER_REACHABILITY + u8_t i; + for (i = 0; i < SNTP_MAX_SERVERS; i++) { + sntp_servers[i].reachability = 0; + } +#endif /* SNTP_MONITOR_SERVER_REACHABILITY */ + sys_untimeout(sntp_request, NULL); + sys_untimeout(sntp_try_next_server, NULL); + udp_remove(sntp_pcb); + sntp_pcb = NULL; + } +} + +/** + * @ingroup sntp + * Get enabled state. + */ +u8_t sntp_enabled(void) +{ + return (sntp_pcb != NULL) ? 1 : 0; +} + +/** + * @ingroup sntp + * Sets the operating mode. + * @param operating_mode one of the available operating modes + */ +void +sntp_setoperatingmode(u8_t operating_mode) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("Invalid operating mode", operating_mode <= SNTP_OPMODE_LISTENONLY); + LWIP_ASSERT("Operating mode must not be set while SNTP client is running", sntp_pcb == NULL); + sntp_opmode = operating_mode; +} + +/** + * @ingroup sntp + * Gets the operating mode. + */ +u8_t +sntp_getoperatingmode(void) +{ + return sntp_opmode; +} + +#if SNTP_MONITOR_SERVER_REACHABILITY +/** + * @ingroup sntp + * Gets the server reachability shift register as described in RFC 5905. + * + * @param idx the index of the NTP server + */ +u8_t +sntp_getreachability(u8_t idx) +{ + if (idx < SNTP_MAX_SERVERS) { + return sntp_servers[idx].reachability; + } + return 0; +} +#endif /* SNTP_MONITOR_SERVER_REACHABILITY */ + +#if SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6 +/** + * Config SNTP server handling by IP address, name, or DHCP; clear table + * @param set_servers_from_dhcp enable or disable getting server addresses from dhcp + */ +void +sntp_servermode_dhcp(int set_servers_from_dhcp) +{ + u8_t new_mode = set_servers_from_dhcp ? 1 : 0; + LWIP_ASSERT_CORE_LOCKED(); + if (sntp_set_servers_from_dhcp != new_mode) { + sntp_set_servers_from_dhcp = new_mode; + } +} +#endif /* SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6 */ + +/** + * @ingroup sntp + * Initialize one of the NTP servers by IP address + * + * @param idx the index of the NTP server to set must be < SNTP_MAX_SERVERS + * @param server IP address of the NTP server to set + */ +void +sntp_setserver(u8_t idx, const ip_addr_t *server) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (idx < SNTP_MAX_SERVERS) { + if (server != NULL) { + sntp_servers[idx].addr = (*server); +#if SNTP_SUPPORT_MULTIPLE_SERVERS + sntp_servers[idx].kod_received = 0; +#endif + } else { + ip_addr_set_zero(&sntp_servers[idx].addr); + } +#if SNTP_SERVER_DNS + sntp_servers[idx].name = NULL; +#endif + } +} + +#if LWIP_DHCP && SNTP_GET_SERVERS_FROM_DHCP +/** + * Initialize one of the NTP servers by IP address, required by DHCP + * + * @param num the index of the NTP server to set must be < SNTP_MAX_SERVERS + * @param server IP address of the NTP server to set + */ +void +dhcp_set_ntp_servers(u8_t num, const ip4_addr_t *server) +{ + LWIP_DEBUGF(SNTP_DEBUG_TRACE, ("sntp: %s %u.%u.%u.%u as NTP server #%u via DHCP\n", + (sntp_set_servers_from_dhcp ? "Got" : "Rejected"), + ip4_addr1(server), ip4_addr2(server), ip4_addr3(server), ip4_addr4(server), num)); + if (sntp_set_servers_from_dhcp && num) { + u8_t i; + for (i = 0; (i < num) && (i < SNTP_MAX_SERVERS); i++) { + ip_addr_t addr; + ip_addr_copy_from_ip4(addr, server[i]); + sntp_setserver(i, &addr); + } + for (i = num; i < SNTP_MAX_SERVERS; i++) { + sntp_setserver(i, NULL); + } + } +} +#endif /* LWIP_DHCP && SNTP_GET_SERVERS_FROM_DHCP */ + +#if LWIP_IPV6_DHCP6 && SNTP_GET_SERVERS_FROM_DHCPV6 +/** + * Initialize one of the NTP servers by IP address, required by DHCPV6 + * + * @param num the number of NTP server addresses to set must be < SNTP_MAX_SERVERS + * @param server array of IP address of the NTP servers to set + */ +void +dhcp6_set_ntp_servers(u8_t num_ntp_servers, ip_addr_t* ntp_server_addrs) +{ + LWIP_DEBUGF(SNTP_DEBUG_TRACE, ("sntp: %s %u NTP server(s) via DHCPv6\n", + (sntp_set_servers_from_dhcp ? "Got" : "Rejected"), + num_ntp_servers)); + if (sntp_set_servers_from_dhcp && num_ntp_servers) { + u8_t i; + for (i = 0; (i < num_ntp_servers) && (i < SNTP_MAX_SERVERS); i++) { + LWIP_DEBUGF(SNTP_DEBUG_TRACE, ("sntp: NTP server %u: %s\n", + i, ipaddr_ntoa(&ntp_server_addrs[i]))); + sntp_setserver(i, &ntp_server_addrs[i]); + } + for (i = num_ntp_servers; i < SNTP_MAX_SERVERS; i++) { + sntp_setserver(i, NULL); + } + } +} +#endif /* LWIP_DHCPv6 && SNTP_GET_SERVERS_FROM_DHCPV6 */ + +/** + * @ingroup sntp + * Obtain one of the currently configured by IP address (or DHCP) NTP servers + * + * @param idx the index of the NTP server + * @return IP address of the indexed NTP server or "ip_addr_any" if the NTP + * server has not been configured by address (or at all). + */ +const ip_addr_t * +sntp_getserver(u8_t idx) +{ + if (idx < SNTP_MAX_SERVERS) { + return &sntp_servers[idx].addr; + } + return IP_ADDR_ANY; +} + +/** + * @ingroup sntp + * Check if a Kiss-of-Death has been received from this server (only valid for + * SNTP_MAX_SERVERS > 1). + * + * @param idx the index of the NTP server + * @return 1 if a KoD has been received, 0 if not. + */ +u8_t +sntp_getkodreceived(u8_t idx) +{ +#if SNTP_SUPPORT_MULTIPLE_SERVERS + if (idx < SNTP_MAX_SERVERS) { + return sntp_servers[idx].kod_received; + } +#else + LWIP_UNUSED_ARG(idx); +#endif + return 0; +} + +#if SNTP_SERVER_DNS +/** + * Initialize one of the NTP servers by name + * + * @param idx the index of the NTP server to set must be < SNTP_MAX_SERVERS + * @param server DNS name of the NTP server to set, to be resolved at contact time + */ +void +sntp_setservername(u8_t idx, const char *server) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (idx < SNTP_MAX_SERVERS) { + sntp_servers[idx].name = server; +#if SNTP_SUPPORT_MULTIPLE_SERVERS + sntp_servers[idx].kod_received = 0; +#endif + } +} + +/** + * Obtain one of the currently configured by name NTP servers. + * + * @param idx the index of the NTP server + * @return IP address of the indexed NTP server or NULL if the NTP + * server has not been configured by name (or at all) + */ +const char * +sntp_getservername(u8_t idx) +{ + if (idx < SNTP_MAX_SERVERS) { + return sntp_servers[idx].name; + } + return NULL; +} +#endif /* SNTP_SERVER_DNS */ + +#endif /* LWIP_UDP */ diff --git a/middleware/lwip/src/apps/tftp/tftp.c b/middleware/lwip/src/apps/tftp/tftp.c new file mode 100644 index 0000000..ddfdbfc --- /dev/null +++ b/middleware/lwip/src/apps/tftp/tftp.c @@ -0,0 +1,548 @@ +/** + * + * @file tftp.c + * + * @author Logan Gunthorpe + * Dirk Ziegelmeier + * + * @brief Trivial File Transfer Protocol (RFC 1350) + * + * Copyright (c) Deltatee Enterprises Ltd. 2013 + * All rights reserved. + * + */ + +/* + * Redistribution and use in source and binary forms, with or without + * modification,are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Author: Logan Gunthorpe + * Dirk Ziegelmeier + * + */ + +/** + * @defgroup tftp TFTP client/server + * @ingroup apps + * + * This is simple TFTP client/server for the lwIP raw API. + * You need to increase MEMP_NUM_SYS_TIMEOUT by one if you use TFTP! + */ + +#include "lwip/apps/tftp_client.h" +#include "lwip/apps/tftp_server.h" + +#if LWIP_UDP + +#include "lwip/udp.h" +#include "lwip/timeouts.h" +#include "lwip/debug.h" + +#define TFTP_MAX_PAYLOAD_SIZE 512 +#define TFTP_HEADER_LENGTH 4 + +#define TFTP_RRQ 1 +#define TFTP_WRQ 2 +#define TFTP_DATA 3 +#define TFTP_ACK 4 +#define TFTP_ERROR 5 + +enum tftp_error { + TFTP_ERROR_FILE_NOT_FOUND = 1, + TFTP_ERROR_ACCESS_VIOLATION = 2, + TFTP_ERROR_DISK_FULL = 3, + TFTP_ERROR_ILLEGAL_OPERATION = 4, + TFTP_ERROR_UNKNOWN_TRFR_ID = 5, + TFTP_ERROR_FILE_EXISTS = 6, + TFTP_ERROR_NO_SUCH_USER = 7 +}; + +#include + +struct tftp_state { + const struct tftp_context *ctx; + void *handle; + struct pbuf *last_data; + struct udp_pcb *upcb; + ip_addr_t addr; + u16_t port; + int timer; + int last_pkt; + u16_t blknum; + u8_t retries; + u8_t mode_write; + u8_t tftp_mode; +}; + +static struct tftp_state tftp_state; + +static void tftp_tmr(void *arg); + +static void +close_handle(void) +{ + tftp_state.port = 0; + ip_addr_set_any(0, &tftp_state.addr); + + if (tftp_state.last_data != NULL) { + pbuf_free(tftp_state.last_data); + tftp_state.last_data = NULL; + } + + sys_untimeout(tftp_tmr, NULL); + + if (tftp_state.handle) { + tftp_state.ctx->close(tftp_state.handle); + tftp_state.handle = NULL; + LWIP_DEBUGF(TFTP_DEBUG | LWIP_DBG_STATE, ("tftp: closing\n")); + } +} + +static struct pbuf* +init_packet(u16_t opcode, u16_t extra, size_t size) +{ + struct pbuf* p = pbuf_alloc(PBUF_TRANSPORT, (u16_t)(TFTP_HEADER_LENGTH + size), PBUF_RAM); + u16_t* payload; + + if (p != NULL) { + payload = (u16_t*) p->payload; + payload[0] = PP_HTONS(opcode); + payload[1] = lwip_htons(extra); + } + + return p; +} + +static err_t +send_request(const ip_addr_t *addr, u16_t port, u16_t opcode, const char* fname, const char* mode) +{ + size_t fname_length = strlen(fname)+1; + size_t mode_length = strlen(mode)+1; + struct pbuf* p = init_packet(opcode, 0, fname_length + mode_length - 2); + char* payload; + err_t ret; + + if (p == NULL) { + return ERR_MEM; + } + + payload = (char*) p->payload; + MEMCPY(payload+2, fname, fname_length); + MEMCPY(payload+2+fname_length, mode, mode_length); + + ret = udp_sendto(tftp_state.upcb, p, addr, port); + pbuf_free(p); + return ret; +} + +static err_t +send_error(const ip_addr_t *addr, u16_t port, enum tftp_error code, const char *str) +{ + int str_length = strlen(str); + struct pbuf *p; + u16_t *payload; + err_t ret; + + p = init_packet(TFTP_ERROR, code, str_length + 1); + if (p == NULL) { + return ERR_MEM; + } + + payload = (u16_t *) p->payload; + MEMCPY(&payload[2], str, str_length + 1); + + ret = udp_sendto(tftp_state.upcb, p, addr, port); + pbuf_free(p); + return ret; +} + +static err_t +send_ack(const ip_addr_t *addr, u16_t port, u16_t blknum) +{ + struct pbuf *p; + err_t ret; + + p = init_packet(TFTP_ACK, blknum, 0); + if (p == NULL) { + return ERR_MEM; + } + + ret = udp_sendto(tftp_state.upcb, p, addr, port); + pbuf_free(p); + return ret; +} + +static err_t +resend_data(const ip_addr_t *addr, u16_t port) +{ + err_t ret; + struct pbuf *p = pbuf_alloc(PBUF_TRANSPORT, tftp_state.last_data->len, PBUF_RAM); + if (p == NULL) { + return ERR_MEM; + } + + ret = pbuf_copy(p, tftp_state.last_data); + if (ret != ERR_OK) { + pbuf_free(p); + return ret; + } + + ret = udp_sendto(tftp_state.upcb, p, addr, port); + pbuf_free(p); + return ret; +} + +static void +send_data(const ip_addr_t *addr, u16_t port) +{ + u16_t *payload; + int ret; + + if (tftp_state.last_data != NULL) { + pbuf_free(tftp_state.last_data); + } + + tftp_state.last_data = init_packet(TFTP_DATA, tftp_state.blknum, TFTP_MAX_PAYLOAD_SIZE); + if (tftp_state.last_data == NULL) { + return; + } + + payload = (u16_t *) tftp_state.last_data->payload; + + ret = tftp_state.ctx->read(tftp_state.handle, &payload[2], TFTP_MAX_PAYLOAD_SIZE); + if (ret < 0) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "Error occurred while reading the file."); + close_handle(); + return; + } + + pbuf_realloc(tftp_state.last_data, (u16_t)(TFTP_HEADER_LENGTH + ret)); + resend_data(addr, port); +} + +static void +tftp_recv(void *arg, struct udp_pcb *upcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) +{ + u16_t *sbuf = (u16_t *) p->payload; + int opcode; + + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(upcb); + + if (((tftp_state.port != 0) && (port != tftp_state.port)) || + (!ip_addr_isany_val(tftp_state.addr) && !ip_addr_eq(&tftp_state.addr, addr))) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "Only one connection at a time is supported"); + pbuf_free(p); + return; + } + + opcode = sbuf[0]; + + tftp_state.last_pkt = tftp_state.timer; + tftp_state.retries = 0; + + switch (opcode) { + case PP_HTONS(TFTP_RRQ): /* fall through */ + case PP_HTONS(TFTP_WRQ): { + const char tftp_null = 0; + char filename[TFTP_MAX_FILENAME_LEN + 1]; + char mode[TFTP_MAX_MODE_LEN + 1]; + u16_t filename_end_offset; + u16_t mode_end_offset; + + if (tftp_state.handle != NULL) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "Only one connection at a time is supported"); + break; + } + + if ((tftp_state.tftp_mode & LWIP_TFTP_MODE_SERVER) == 0) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "TFTP server not enabled"); + break; + } + + sys_timeout(TFTP_TIMER_MSECS, tftp_tmr, NULL); + + /* find \0 in pbuf -> end of filename string */ + filename_end_offset = pbuf_memfind(p, &tftp_null, sizeof(tftp_null), 2); + if ((u16_t)(filename_end_offset - 1) > sizeof(filename)) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "Filename too long/not NULL terminated"); + break; + } + pbuf_copy_partial(p, filename, filename_end_offset - 1, 2); + + /* find \0 in pbuf -> end of mode string */ + mode_end_offset = pbuf_memfind(p, &tftp_null, sizeof(tftp_null), filename_end_offset + 1); + if ((u16_t)(mode_end_offset - filename_end_offset) > sizeof(mode)) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "Mode too long/not NULL terminated"); + break; + } + pbuf_copy_partial(p, mode, mode_end_offset - filename_end_offset, filename_end_offset + 1); + + tftp_state.handle = tftp_state.ctx->open(filename, mode, opcode == PP_HTONS(TFTP_WRQ)); + tftp_state.blknum = 1; + + if (!tftp_state.handle) { + send_error(addr, port, TFTP_ERROR_FILE_NOT_FOUND, "Unable to open requested file."); + break; + } + + LWIP_DEBUGF(TFTP_DEBUG | LWIP_DBG_STATE, ("tftp: %s request from ", (opcode == PP_HTONS(TFTP_WRQ)) ? "write" : "read")); + ip_addr_debug_print(TFTP_DEBUG | LWIP_DBG_STATE, addr); + LWIP_DEBUGF(TFTP_DEBUG | LWIP_DBG_STATE, (" for '%s' mode '%s'\n", filename, mode)); + + ip_addr_copy(tftp_state.addr, *addr); + tftp_state.port = port; + + if (opcode == PP_HTONS(TFTP_WRQ)) { + tftp_state.mode_write = 1; + send_ack(addr, port, 0); + } else { + tftp_state.mode_write = 0; + send_data(addr, port); + } + + break; + } + + case PP_HTONS(TFTP_DATA): { + int ret; + u16_t blknum; + + if (tftp_state.handle == NULL) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "No connection"); + break; + } + + if (tftp_state.mode_write != 1) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "Not a write connection"); + break; + } + + blknum = lwip_ntohs(sbuf[1]); + if (blknum == tftp_state.blknum) { + pbuf_remove_header(p, TFTP_HEADER_LENGTH); + + ret = tftp_state.ctx->write(tftp_state.handle, p); + if (ret < 0) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "error writing file"); + close_handle(); + } else { + send_ack(addr, port, blknum); + } + + if (p->tot_len < TFTP_MAX_PAYLOAD_SIZE) { + close_handle(); + } else { + tftp_state.blknum++; + } + } else if ((u16_t)(blknum + 1) == tftp_state.blknum) { + /* retransmit of previous block, ack again (casting to u16_t to care for overflow) */ + send_ack(addr, port, blknum); + } else { + send_error(addr, port, TFTP_ERROR_UNKNOWN_TRFR_ID, "Wrong block number"); + } + break; + } + + case PP_HTONS(TFTP_ACK): { + u16_t blknum; + int lastpkt; + + if (tftp_state.handle == NULL) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "No connection"); + break; + } + + if (tftp_state.mode_write != 0) { + send_error(addr, port, TFTP_ERROR_ACCESS_VIOLATION, "Not a read connection"); + break; + } + + blknum = lwip_ntohs(sbuf[1]); + if (blknum != tftp_state.blknum) { + send_error(addr, port, TFTP_ERROR_UNKNOWN_TRFR_ID, "Wrong block number"); + break; + } + + lastpkt = 0; + + if (tftp_state.last_data != NULL) { + lastpkt = tftp_state.last_data->tot_len != (TFTP_MAX_PAYLOAD_SIZE + TFTP_HEADER_LENGTH); + } + + if (!lastpkt) { + tftp_state.blknum++; + send_data(addr, port); + } else { + close_handle(); + } + + break; + } + case PP_HTONS(TFTP_ERROR): + if (tftp_state.handle != NULL) { + pbuf_remove_header(p, TFTP_HEADER_LENGTH); + tftp_state.ctx->error(tftp_state.handle, sbuf[1], (const char*)p->payload, p->len); + close_handle(); + } + break; + default: + send_error(addr, port, TFTP_ERROR_ILLEGAL_OPERATION, "Unknown operation"); + break; + } + + pbuf_free(p); +} + +static void +tftp_tmr(void *arg) +{ + LWIP_UNUSED_ARG(arg); + + tftp_state.timer++; + + if (tftp_state.handle == NULL) { + return; + } + + sys_timeout(TFTP_TIMER_MSECS, tftp_tmr, NULL); + + if ((tftp_state.timer - tftp_state.last_pkt) > (TFTP_TIMEOUT_MSECS / TFTP_TIMER_MSECS)) { + if ((tftp_state.last_data != NULL) && (tftp_state.retries < TFTP_MAX_RETRIES)) { + LWIP_DEBUGF(TFTP_DEBUG | LWIP_DBG_STATE, ("tftp: timeout, retrying\n")); + resend_data(&tftp_state.addr, tftp_state.port); + tftp_state.retries++; + } else { + LWIP_DEBUGF(TFTP_DEBUG | LWIP_DBG_STATE, ("tftp: timeout\n")); + close_handle(); + } + } +} + +/** + * Initialize TFTP client/server. + * @param mode TFTP mode (client/server) + * @param ctx TFTP callback struct + */ +err_t +tftp_init_common(u8_t mode, const struct tftp_context *ctx) +{ + err_t ret; + + /* LWIP_ASSERT_CORE_LOCKED(); is checked by udp_new() */ + struct udp_pcb *pcb = udp_new_ip_type(IPADDR_TYPE_ANY); + if (pcb == NULL) { + return ERR_MEM; + } + + ret = udp_bind(pcb, IP_ANY_TYPE, TFTP_PORT); + if (ret != ERR_OK) { + udp_remove(pcb); + return ret; + } + + tftp_state.handle = NULL; + tftp_state.port = 0; + tftp_state.ctx = ctx; + tftp_state.timer = 0; + tftp_state.last_data = NULL; + tftp_state.upcb = pcb; + tftp_state.tftp_mode = mode; + + udp_recv(pcb, tftp_recv, NULL); + + return ERR_OK; +} + +/** @ingroup tftp + * Initialize TFTP server. + * @param ctx TFTP callback struct + */ +err_t +tftp_init_server(const struct tftp_context *ctx) +{ + return tftp_init_common(LWIP_TFTP_MODE_SERVER, ctx); +} + +/** @ingroup tftp + * Initialize TFTP client. + * @param ctx TFTP callback struct + */ +err_t +tftp_init_client(const struct tftp_context *ctx) +{ + return tftp_init_common(LWIP_TFTP_MODE_CLIENT, ctx); +} + +/** @ingroup tftp + * Deinitialize ("turn off") TFTP client/server. + */ +void tftp_cleanup(void) +{ + LWIP_ASSERT("Cleanup called on non-initialized TFTP", tftp_state.upcb != NULL); + udp_remove(tftp_state.upcb); + close_handle(); + memset(&tftp_state, 0, sizeof(tftp_state)); +} + +static const char * +mode_to_string(enum tftp_transfer_mode mode) +{ + if (mode == TFTP_MODE_OCTET) { + return "octet"; + } + if (mode == TFTP_MODE_NETASCII) { + return "netascii"; + } + if (mode == TFTP_MODE_BINARY) { + return "binary"; + } + return NULL; +} + +err_t +tftp_get(void* handle, const ip_addr_t *addr, u16_t port, const char* fname, enum tftp_transfer_mode mode) +{ + LWIP_ERROR("TFTP client is not enabled (tftp_init)", (tftp_state.tftp_mode & LWIP_TFTP_MODE_CLIENT) != 0, return ERR_VAL); + LWIP_ERROR("tftp_get: invalid file name", fname != NULL, return ERR_VAL); + LWIP_ERROR("tftp_get: invalid mode", mode <= TFTP_MODE_BINARY, return ERR_VAL); + + tftp_state.handle = handle; + tftp_state.blknum = 1; + tftp_state.mode_write = 1; /* We want to receive data */ + return send_request(addr, port, TFTP_RRQ, fname, mode_to_string(mode)); +} + +err_t +tftp_put(void* handle, const ip_addr_t *addr, u16_t port, const char* fname, enum tftp_transfer_mode mode) +{ + LWIP_ERROR("TFTP client is not enabled (tftp_init)", (tftp_state.tftp_mode & LWIP_TFTP_MODE_CLIENT) != 0, return ERR_VAL); + LWIP_ERROR("tftp_put: invalid file name", fname != NULL, return ERR_VAL); + LWIP_ERROR("tftp_put: invalid mode", mode <= TFTP_MODE_BINARY, return ERR_VAL); + + tftp_state.handle = handle; + tftp_state.blknum = 1; + tftp_state.mode_write = 0; /* We want to send data */ + return send_request(addr, port, TFTP_WRQ, fname, mode_to_string(mode)); +} + +#endif /* LWIP_UDP */ diff --git a/middleware/lwip/src/core/altcp.c b/middleware/lwip/src/core/altcp.c new file mode 100644 index 0000000..9644e82 --- /dev/null +++ b/middleware/lwip/src/core/altcp.c @@ -0,0 +1,717 @@ +/** + * @file + * @defgroup altcp Application layered TCP Functions + * @ingroup altcp_api + * + * This file contains the common functions for altcp to work. + * For more details see @ref altcp_api. + */ + +/** + * @defgroup altcp_api Application layered TCP Introduction + * @ingroup callbackstyle_api + * + * Overview + * -------- + * altcp (application layered TCP connection API; to be used from TCPIP thread) + * is an abstraction layer that prevents applications linking hard against the + * @ref tcp.h functions while providing the same functionality. It is used to + * e.g. add SSL/TLS (see LWIP_ALTCP_TLS) or proxy-connect support to an application + * written for the tcp callback API without that application knowing the + * protocol details. + * + * * This interface mimics the tcp callback API to the application while preventing + * direct linking (much like virtual functions). + * * This way, an application can make use of other application layer protocols + * on top of TCP without knowing the details (e.g. TLS, proxy connection). + * * This is achieved by simply including "lwip/altcp.h" instead of "lwip/tcp.h", + * replacing "struct tcp_pcb" with "struct altcp_pcb" and prefixing all functions + * with "altcp_" instead of "tcp_". + * + * With altcp support disabled (LWIP_ALTCP==0), applications written against the + * altcp API can still be compiled but are directly linked against the tcp.h + * callback API and then cannot use layered protocols. To minimize code changes + * in this case, the use of altcp_allocators is strongly suggested. + * + * Usage + * ----- + * To make use of this API from an existing tcp raw API application: + * * Include "lwip/altcp.h" instead of "lwip/tcp.h" + * * Replace "struct tcp_pcb" with "struct altcp_pcb" + * * Prefix all called tcp API functions with "altcp_" instead of "tcp_" to link + * against the altcp functions + * * @ref altcp_new (and @ref altcp_new_ip_type / @ref altcp_new_ip6) take + * an @ref altcp_allocator_t as an argument, whereas the original tcp API + * functions take no arguments. + * * An @ref altcp_allocator_t allocator is an object that holds a pointer to an + * allocator object and a corresponding state (e.g. for TLS, the corresponding + * state may hold certificates or keys). This way, the application does not + * even need to know if it uses TLS or pure TCP, this is handled at runtime + * by passing a specific allocator. + * * An application can alternatively bind hard to the altcp_tls API by calling + * @ref altcp_tls_new or @ref altcp_tls_wrap. + * * The TLS layer is not directly implemented by lwIP, but a port to mbedTLS is + * provided. + * * Another altcp layer is proxy-connect to use TLS behind a HTTP proxy (see + * @ref altcp_proxyconnect.h) + * + * altcp_allocator_t + * ----------------- + * An altcp allocator is created by the application by combining an allocator + * callback function and a corresponding state, e.g.:\code{.c} + * static const unsigned char cert[] = {0x2D, ... (see mbedTLS doc for how to create this)}; + * struct altcp_tls_config * conf = altcp_tls_create_config_client(cert, sizeof(cert)); + * altcp_allocator_t tls_allocator = { + * altcp_tls_alloc, conf + * }; + * \endcode + * + * + * struct altcp_tls_config + * ----------------------- + * The struct altcp_tls_config holds state that is needed to create new TLS client + * or server connections (e.g. certificates and private keys). + * + * It is not defined by lwIP itself but by the TLS port (e.g. altcp_tls to mbedTLS + * adaption). However, the parameters used to create it are defined in @ref + * altcp_tls.h (see @ref altcp_tls_create_config_server_privkey_cert for servers + * and @ref altcp_tls_create_config_client / @ref altcp_tls_create_config_client_2wayauth + * for clients). + * + * For mbedTLS, ensure that certificates can be parsed by 'mbedtls_x509_crt_parse()' and + * private keys can be parsed by 'mbedtls_pk_parse_key()'. + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" + +#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/altcp.h" +#include "lwip/priv/altcp_priv.h" +#include "lwip/altcp_tcp.h" +#include "lwip/tcp.h" +#include "lwip/mem.h" + +#include + +extern const struct altcp_functions altcp_tcp_functions; + +/** + * For altcp layer implementations only: allocate a new struct altcp_pcb from the pool + * and zero the memory + */ +struct altcp_pcb * +altcp_alloc(void) +{ + struct altcp_pcb *ret = (struct altcp_pcb *)memp_malloc(MEMP_ALTCP_PCB); + if (ret != NULL) { + memset(ret, 0, sizeof(struct altcp_pcb)); + } + return ret; +} + +/** + * For altcp layer implementations only: return a struct altcp_pcb to the pool + */ +void +altcp_free(struct altcp_pcb *conn) +{ + if (conn) { + if (conn->fns && conn->fns->dealloc) { + conn->fns->dealloc(conn); + } + memp_free(MEMP_ALTCP_PCB, conn); + } +} + +/** + * @ingroup altcp + * altcp_new_ip6: @ref altcp_new for IPv6 + */ +struct altcp_pcb * +altcp_new_ip6(altcp_allocator_t *allocator) +{ + return altcp_new_ip_type(allocator, IPADDR_TYPE_V6); +} + +/** + * @ingroup altcp + * altcp_new: @ref altcp_new for IPv4 + */ +struct altcp_pcb * +altcp_new(altcp_allocator_t *allocator) +{ + return altcp_new_ip_type(allocator, IPADDR_TYPE_V4); +} + +/** + * @ingroup altcp + * altcp_new_ip_type: called by applications to allocate a new pcb with the help of an + * allocator function. + * + * @param allocator allocator function and argument + * @param ip_type IP version of the pcb (@ref lwip_ip_addr_type) + * @return a new altcp_pcb or NULL on error + */ +struct altcp_pcb * +altcp_new_ip_type(altcp_allocator_t *allocator, u8_t ip_type) +{ + struct altcp_pcb *conn; + if (allocator == NULL) { + /* no allocator given, create a simple TCP connection */ + return altcp_tcp_new_ip_type(ip_type); + } + if (allocator->alloc == NULL) { + /* illegal allocator */ + return NULL; + } + conn = allocator->alloc(allocator->arg, ip_type); + if (conn == NULL) { + /* allocation failed */ + return NULL; + } + return conn; +} + +/** + * @ingroup altcp + * @see tcp_arg() + */ +void +altcp_arg(struct altcp_pcb *conn, void *arg) +{ + if (conn) { + conn->arg = arg; + } +} + +/** + * @ingroup altcp + * @see tcp_accept() + */ +void +altcp_accept(struct altcp_pcb *conn, altcp_accept_fn accept) +{ + if (conn != NULL) { + conn->accept = accept; + } +} + +/** + * @ingroup altcp + * @see tcp_recv() + */ +void +altcp_recv(struct altcp_pcb *conn, altcp_recv_fn recv) +{ + if (conn) { + conn->recv = recv; + } +} + +/** + * @ingroup altcp + * @see tcp_sent() + */ +void +altcp_sent(struct altcp_pcb *conn, altcp_sent_fn sent) +{ + if (conn) { + conn->sent = sent; + } +} + +/** + * @ingroup altcp + * @see tcp_poll() + */ +void +altcp_poll(struct altcp_pcb *conn, altcp_poll_fn poll, u8_t interval) +{ + if (conn) { + conn->poll = poll; + conn->pollinterval = interval; + if (conn->fns && conn->fns->set_poll) { + conn->fns->set_poll(conn, interval); + } + } +} + +/** + * @ingroup altcp + * @see tcp_err() + */ +void +altcp_err(struct altcp_pcb *conn, altcp_err_fn err) +{ + if (conn) { + conn->err = err; + } +} + +/* Generic functions calling the "virtual" ones */ + +/** + * @ingroup altcp + * @see tcp_recved() + */ +void +altcp_recved(struct altcp_pcb *conn, u16_t len) +{ + if (conn && conn->fns && conn->fns->recved) { + conn->fns->recved(conn, len); + } +} + +/** + * @ingroup altcp + * @see tcp_bind() + */ +err_t +altcp_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port) +{ + if (conn && conn->fns && conn->fns->bind) { + return conn->fns->bind(conn, ipaddr, port); + } + return ERR_VAL; +} + +/** + * @ingroup altcp + * @see tcp_connect() + */ +err_t +altcp_connect(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected) +{ + if (conn && conn->fns && conn->fns->connect) { + return conn->fns->connect(conn, ipaddr, port, connected); + } + return ERR_VAL; +} + +/** + * @ingroup altcp + * @see tcp_listen_with_backlog_and_err() + */ +struct altcp_pcb * +altcp_listen_with_backlog_and_err(struct altcp_pcb *conn, u8_t backlog, err_t *err) +{ + if (conn && conn->fns && conn->fns->listen) { + return conn->fns->listen(conn, backlog, err); + } + return NULL; +} + +/** + * @ingroup altcp + * @see tcp_abort() + */ +void +altcp_abort(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->abort) { + conn->fns->abort(conn); + } +} + +/** + * @ingroup altcp + * @see tcp_close() + */ +err_t +altcp_close(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->close) { + return conn->fns->close(conn); + } + return ERR_VAL; +} + +/** + * @ingroup altcp + * @see tcp_shutdown() + */ +err_t +altcp_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx) +{ + if (conn && conn->fns && conn->fns->shutdown) { + return conn->fns->shutdown(conn, shut_rx, shut_tx); + } + return ERR_VAL; +} + +/** + * @ingroup altcp + * @see tcp_write() + */ +err_t +altcp_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags) +{ + if (conn && conn->fns && conn->fns->write) { + return conn->fns->write(conn, dataptr, len, apiflags); + } + return ERR_VAL; +} + +/** + * @ingroup altcp + * @see tcp_output() + */ +err_t +altcp_output(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->output) { + return conn->fns->output(conn); + } + return ERR_VAL; +} + +/** + * @ingroup altcp + * @see tcp_mss() + */ +u16_t +altcp_mss(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->mss) { + return conn->fns->mss(conn); + } + return 0; +} + +/** + * @ingroup altcp + * @see tcp_sndbuf() + */ +u16_t +altcp_sndbuf(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->sndbuf) { + return conn->fns->sndbuf(conn); + } + return 0; +} + +/** + * @ingroup altcp + * @see tcp_sndqueuelen() + */ +u16_t +altcp_sndqueuelen(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->sndqueuelen) { + return conn->fns->sndqueuelen(conn); + } + return 0; +} + +void +altcp_nagle_disable(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->nagle_disable) { + conn->fns->nagle_disable(conn); + } +} + +void +altcp_nagle_enable(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->nagle_enable) { + conn->fns->nagle_enable(conn); + } +} + +int +altcp_nagle_disabled(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->nagle_disabled) { + return conn->fns->nagle_disabled(conn); + } + return 0; +} + +/** + * @ingroup altcp + * @see tcp_setprio() + */ +void +altcp_setprio(struct altcp_pcb *conn, u8_t prio) +{ + if (conn && conn->fns && conn->fns->setprio) { + conn->fns->setprio(conn, prio); + } +} + +err_t +altcp_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port) +{ + if (conn && conn->fns && conn->fns->addrinfo) { + return conn->fns->addrinfo(conn, local, addr, port); + } + return ERR_VAL; +} + +ip_addr_t * +altcp_get_ip(struct altcp_pcb *conn, int local) +{ + if (conn && conn->fns && conn->fns->getip) { + return conn->fns->getip(conn, local); + } + return NULL; +} + +u16_t +altcp_get_port(struct altcp_pcb *conn, int local) +{ + if (conn && conn->fns && conn->fns->getport) { + return conn->fns->getport(conn, local); + } + return 0; +} + +#if LWIP_TCP_KEEPALIVE +void +altcp_keepalive_disable(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->keepalive_disable) { + conn->fns->keepalive_disable(conn); + } +} + +void +altcp_keepalive_enable(struct altcp_pcb *conn, u32_t idle, u32_t intvl, u32_t count) +{ + if (conn && conn->fns && conn->fns->keepalive_enable) { + conn->fns->keepalive_enable(conn, idle, intvl, count); + } +} +#endif + +#ifdef LWIP_DEBUG +enum tcp_state +altcp_dbg_get_tcp_state(struct altcp_pcb *conn) +{ + if (conn && conn->fns && conn->fns->dbg_get_tcp_state) { + return conn->fns->dbg_get_tcp_state(conn); + } + return CLOSED; +} +#endif + +/* Default implementations for the "virtual" functions */ + +void +altcp_default_set_poll(struct altcp_pcb *conn, u8_t interval) +{ + if (conn && conn->inner_conn) { + altcp_poll(conn->inner_conn, conn->poll, interval); + } +} + +void +altcp_default_recved(struct altcp_pcb *conn, u16_t len) +{ + if (conn && conn->inner_conn) { + altcp_recved(conn->inner_conn, len); + } +} + +err_t +altcp_default_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port) +{ + if (conn && conn->inner_conn) { + return altcp_bind(conn->inner_conn, ipaddr, port); + } + return ERR_VAL; +} + +err_t +altcp_default_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx) +{ + if (conn) { + if (shut_rx && shut_tx && conn->fns && conn->fns->close) { + /* default shutdown for both sides is close */ + return conn->fns->close(conn); + } + if (conn->inner_conn) { + return altcp_shutdown(conn->inner_conn, shut_rx, shut_tx); + } + } + return ERR_VAL; +} + +err_t +altcp_default_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags) +{ + if (conn && conn->inner_conn) { + return altcp_write(conn->inner_conn, dataptr, len, apiflags); + } + return ERR_VAL; +} + +err_t +altcp_default_output(struct altcp_pcb *conn) +{ + if (conn && conn->inner_conn) { + return altcp_output(conn->inner_conn); + } + return ERR_VAL; +} + +u16_t +altcp_default_mss(struct altcp_pcb *conn) +{ + if (conn && conn->inner_conn) { + return altcp_mss(conn->inner_conn); + } + return 0; +} + +u16_t +altcp_default_sndbuf(struct altcp_pcb *conn) +{ + if (conn && conn->inner_conn) { + return altcp_sndbuf(conn->inner_conn); + } + return 0; +} + +u16_t +altcp_default_sndqueuelen(struct altcp_pcb *conn) +{ + if (conn && conn->inner_conn) { + return altcp_sndqueuelen(conn->inner_conn); + } + return 0; +} + +void +altcp_default_nagle_disable(struct altcp_pcb *conn) +{ + if (conn && conn->inner_conn) { + altcp_nagle_disable(conn->inner_conn); + } +} + +void +altcp_default_nagle_enable(struct altcp_pcb *conn) +{ + if (conn && conn->inner_conn) { + altcp_nagle_enable(conn->inner_conn); + } +} + +int +altcp_default_nagle_disabled(struct altcp_pcb *conn) +{ + if (conn && conn->inner_conn) { + return altcp_nagle_disabled(conn->inner_conn); + } + return 0; +} + +void +altcp_default_setprio(struct altcp_pcb *conn, u8_t prio) +{ + if (conn && conn->inner_conn) { + altcp_setprio(conn->inner_conn, prio); + } +} + +void +altcp_default_dealloc(struct altcp_pcb *conn) +{ + LWIP_UNUSED_ARG(conn); + /* nothing to do */ +} + +err_t +altcp_default_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port) +{ + if (conn && conn->inner_conn) { + return altcp_get_tcp_addrinfo(conn->inner_conn, local, addr, port); + } + return ERR_VAL; +} + +ip_addr_t * +altcp_default_get_ip(struct altcp_pcb *conn, int local) +{ + if (conn && conn->inner_conn) { + return altcp_get_ip(conn->inner_conn, local); + } + return NULL; +} + +u16_t +altcp_default_get_port(struct altcp_pcb *conn, int local) +{ + if (conn && conn->inner_conn) { + return altcp_get_port(conn->inner_conn, local); + } + return 0; +} + +#if LWIP_TCP_KEEPALIVE +void +altcp_default_keepalive_disable(struct altcp_pcb *conn) +{ + if (conn && conn->inner_conn) { + altcp_keepalive_disable(conn->inner_conn); + } +} + +void +altcp_default_keepalive_enable(struct altcp_pcb *conn, u32_t idle, u32_t intvl, u32_t count) +{ + if (conn && conn->inner_conn) { + altcp_keepalive_enable(conn->inner_conn, idle, intvl, count); + } +} +#endif + +#ifdef LWIP_DEBUG +enum tcp_state +altcp_default_dbg_get_tcp_state(struct altcp_pcb *conn) +{ + if (conn && conn->inner_conn) { + return altcp_dbg_get_tcp_state(conn->inner_conn); + } + return CLOSED; +} +#endif + + +#endif /* LWIP_ALTCP */ diff --git a/middleware/lwip/src/core/altcp_alloc.c b/middleware/lwip/src/core/altcp_alloc.c new file mode 100644 index 0000000..06ed90d --- /dev/null +++ b/middleware/lwip/src/core/altcp_alloc.c @@ -0,0 +1,87 @@ +/** + * @file + * Application layered TCP connection API (to be used from TCPIP thread)
+ * This interface mimics the tcp callback API to the application while preventing + * direct linking (much like virtual functions). + * This way, an application can make use of other application layer protocols + * on top of TCP without knowing the details (e.g. TLS, proxy connection). + * + * This file contains allocation implementation that combine several layers. + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" + +#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/altcp.h" +#include "lwip/altcp_tcp.h" +#include "lwip/altcp_tls.h" +#include "lwip/priv/altcp_priv.h" +#include "lwip/mem.h" + +#include + +#if LWIP_ALTCP_TLS + +/** This standard allocator function creates an altcp pcb for + * TLS over TCP */ +struct altcp_pcb * +altcp_tls_new(struct altcp_tls_config *config, u8_t ip_type) +{ + struct altcp_pcb *inner_conn, *ret; + LWIP_UNUSED_ARG(ip_type); + + inner_conn = altcp_tcp_new_ip_type(ip_type); + if (inner_conn == NULL) { + return NULL; + } + ret = altcp_tls_wrap(config, inner_conn); + if (ret == NULL) { + altcp_close(inner_conn); + } + return ret; +} + +/** This standard allocator function creates an altcp pcb for + * TLS over TCP */ +struct altcp_pcb * +altcp_tls_alloc(void *arg, u8_t ip_type) +{ + return altcp_tls_new((struct altcp_tls_config *)arg, ip_type); +} + +#endif /* LWIP_ALTCP_TLS */ + +#endif /* LWIP_ALTCP */ diff --git a/middleware/lwip/src/core/altcp_tcp.c b/middleware/lwip/src/core/altcp_tcp.c new file mode 100644 index 0000000..fd6a6a5 --- /dev/null +++ b/middleware/lwip/src/core/altcp_tcp.c @@ -0,0 +1,578 @@ +/** + * @file + * Application layered TCP connection API (to be used from TCPIP thread) + * + * This interface mimics the tcp callback API to the application while preventing + * direct linking (much like virtual functions). + * This way, an application can make use of other application layer protocols + * on top of TCP without knowing the details (e.g. TLS, proxy connection). + * + * This file contains the base implementation calling into tcp. + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" + +#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/altcp.h" +#include "lwip/altcp_tcp.h" +#include "lwip/priv/altcp_priv.h" +#include "lwip/tcp.h" +#include "lwip/priv/tcp_priv.h" +#include "lwip/mem.h" + +#include + +#define ALTCP_TCP_ASSERT_CONN(conn) do { \ + LWIP_ASSERT("conn->inner_conn == NULL", (conn)->inner_conn == NULL); \ + LWIP_UNUSED_ARG(conn); /* for LWIP_NOASSERT */ } while(0) +#define ALTCP_TCP_ASSERT_CONN_PCB(conn, tpcb) do { \ + LWIP_ASSERT("pcb mismatch", (conn)->state == tpcb); \ + LWIP_UNUSED_ARG(tpcb); /* for LWIP_NOASSERT */ \ + ALTCP_TCP_ASSERT_CONN(conn); } while(0) + + +/* Variable prototype, the actual declaration is at the end of this file + since it contains pointers to static functions declared here */ +extern const struct altcp_functions altcp_tcp_functions; + +static void altcp_tcp_setup(struct altcp_pcb *conn, struct tcp_pcb *tpcb); + +/* callback functions for TCP */ +static err_t +altcp_tcp_accept(void *arg, struct tcp_pcb *new_tpcb, err_t err) +{ + struct altcp_pcb *listen_conn = (struct altcp_pcb *)arg; + if (listen_conn && listen_conn->accept) { + /* create a new altcp_conn to pass to the next 'accept' callback */ + struct altcp_pcb *new_conn = altcp_alloc(); + if (new_conn == NULL) { + return ERR_MEM; + } + altcp_tcp_setup(new_conn, new_tpcb); + return listen_conn->accept(listen_conn->arg, new_conn, err); + } + return ERR_ARG; +} + +static err_t +altcp_tcp_connected(void *arg, struct tcp_pcb *tpcb, err_t err) +{ + struct altcp_pcb *conn = (struct altcp_pcb *)arg; + if (conn) { + ALTCP_TCP_ASSERT_CONN_PCB(conn, tpcb); + if (conn->connected) { + return conn->connected(conn->arg, conn, err); + } + } + return ERR_OK; +} + +static err_t +altcp_tcp_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err) +{ + struct altcp_pcb *conn = (struct altcp_pcb *)arg; + if (conn) { + ALTCP_TCP_ASSERT_CONN_PCB(conn, tpcb); + if (conn->recv) { + return conn->recv(conn->arg, conn, p, err); + } + } + if (p != NULL) { + /* prevent memory leaks */ + pbuf_free(p); + } + return ERR_OK; +} + +static err_t +altcp_tcp_sent(void *arg, struct tcp_pcb *tpcb, u16_t len) +{ + struct altcp_pcb *conn = (struct altcp_pcb *)arg; + if (conn) { + ALTCP_TCP_ASSERT_CONN_PCB(conn, tpcb); + if (conn->sent) { + return conn->sent(conn->arg, conn, len); + } + } + return ERR_OK; +} + +static err_t +altcp_tcp_poll(void *arg, struct tcp_pcb *tpcb) +{ + struct altcp_pcb *conn = (struct altcp_pcb *)arg; + if (conn) { + ALTCP_TCP_ASSERT_CONN_PCB(conn, tpcb); + if (conn->poll) { + return conn->poll(conn->arg, conn); + } + } + return ERR_OK; +} + +static void +altcp_tcp_err(void *arg, err_t err) +{ + struct altcp_pcb *conn = (struct altcp_pcb *)arg; + if (conn) { + conn->state = NULL; /* already freed */ + if (conn->err) { + conn->err(conn->arg, err); + } + altcp_free(conn); + } +} + +/* setup functions */ + +static void +altcp_tcp_remove_callbacks(struct tcp_pcb *tpcb) +{ + tcp_arg(tpcb, NULL); + if (tpcb->state != LISTEN) { + tcp_recv(tpcb, NULL); + tcp_sent(tpcb, NULL); + tcp_err(tpcb, NULL); + tcp_poll(tpcb, NULL, tpcb->pollinterval); + } +} + +static void +altcp_tcp_setup_callbacks(struct altcp_pcb *conn, struct tcp_pcb *tpcb) +{ + tcp_arg(tpcb, conn); + /* this might be called for LISTN when close fails... */ + if (tpcb->state != LISTEN) { + tcp_recv(tpcb, altcp_tcp_recv); + tcp_sent(tpcb, altcp_tcp_sent); + tcp_err(tpcb, altcp_tcp_err); + /* tcp_poll is set when interval is set by application */ + } +} + +static void +altcp_tcp_setup(struct altcp_pcb *conn, struct tcp_pcb *tpcb) +{ + altcp_tcp_setup_callbacks(conn, tpcb); + conn->state = tpcb; + conn->fns = &altcp_tcp_functions; +} + +struct altcp_pcb * +altcp_tcp_new_ip_type(u8_t ip_type) +{ + /* Allocate the tcp pcb first to invoke the priority handling code + if we're out of pcbs */ + struct tcp_pcb *tpcb = tcp_new_ip_type(ip_type); + if (tpcb != NULL) { + struct altcp_pcb *ret = altcp_alloc(); + if (ret != NULL) { + altcp_tcp_setup(ret, tpcb); + return ret; + } else { + /* altcp_pcb allocation failed -> free the tcp_pcb too */ + tcp_close(tpcb); + } + } + return NULL; +} + +/** altcp_tcp allocator function fitting to @ref altcp_allocator_t / @ref altcp_new. +* +* arg pointer is not used for TCP. +*/ +struct altcp_pcb * +altcp_tcp_alloc(void *arg, u8_t ip_type) +{ + LWIP_UNUSED_ARG(arg); + return altcp_tcp_new_ip_type(ip_type); +} + +struct altcp_pcb * +altcp_tcp_wrap(struct tcp_pcb *tpcb) +{ + if (tpcb != NULL) { + struct altcp_pcb *ret = altcp_alloc(); + if (ret != NULL) { + altcp_tcp_setup(ret, tpcb); + return ret; + } + } + return NULL; +} + + +/* "virtual" functions calling into tcp */ +static void +altcp_tcp_set_poll(struct altcp_pcb *conn, u8_t interval) +{ + if (conn != NULL) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + tcp_poll(pcb, altcp_tcp_poll, interval); + } +} + +static void +altcp_tcp_recved(struct altcp_pcb *conn, u16_t len) +{ + if (conn != NULL) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + tcp_recved(pcb, len); + } +} + +static err_t +altcp_tcp_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port) +{ + struct tcp_pcb *pcb; + if (conn == NULL) { + return ERR_VAL; + } + ALTCP_TCP_ASSERT_CONN(conn); + pcb = (struct tcp_pcb *)conn->state; + return tcp_bind(pcb, ipaddr, port); +} + +static err_t +altcp_tcp_connect(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected) +{ + struct tcp_pcb *pcb; + if (conn == NULL) { + return ERR_VAL; + } + ALTCP_TCP_ASSERT_CONN(conn); + conn->connected = connected; + pcb = (struct tcp_pcb *)conn->state; + return tcp_connect(pcb, ipaddr, port, altcp_tcp_connected); +} + +static struct altcp_pcb * +altcp_tcp_listen(struct altcp_pcb *conn, u8_t backlog, err_t *err) +{ + struct tcp_pcb *pcb; + struct tcp_pcb *lpcb; + if (conn == NULL) { + return NULL; + } + ALTCP_TCP_ASSERT_CONN(conn); + pcb = (struct tcp_pcb *)conn->state; + lpcb = tcp_listen_with_backlog_and_err(pcb, backlog, err); + if (lpcb != NULL) { + conn->state = lpcb; + tcp_accept(lpcb, altcp_tcp_accept); + return conn; + } + return NULL; +} + +static void +altcp_tcp_abort(struct altcp_pcb *conn) +{ + if (conn != NULL) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + if (pcb) { + tcp_abort(pcb); + } + } +} + +static err_t +altcp_tcp_close(struct altcp_pcb *conn) +{ + struct tcp_pcb *pcb; + if (conn == NULL) { + return ERR_VAL; + } + ALTCP_TCP_ASSERT_CONN(conn); + pcb = (struct tcp_pcb *)conn->state; + if (pcb) { + err_t err; + tcp_poll_fn oldpoll = pcb->poll; + altcp_tcp_remove_callbacks(pcb); + err = tcp_close(pcb); + if (err != ERR_OK) { + /* not closed, set up all callbacks again */ + altcp_tcp_setup_callbacks(conn, pcb); + /* poll callback is not included in the above */ + tcp_poll(pcb, oldpoll, pcb->pollinterval); + return err; + } + conn->state = NULL; /* unsafe to reference pcb after tcp_close(). */ + } + altcp_free(conn); + return ERR_OK; +} + +static err_t +altcp_tcp_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx) +{ + struct tcp_pcb *pcb; + if (conn == NULL) { + return ERR_VAL; + } + ALTCP_TCP_ASSERT_CONN(conn); + pcb = (struct tcp_pcb *)conn->state; + return tcp_shutdown(pcb, shut_rx, shut_tx); +} + +static err_t +altcp_tcp_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags) +{ + struct tcp_pcb *pcb; + if (conn == NULL) { + return ERR_VAL; + } + ALTCP_TCP_ASSERT_CONN(conn); + pcb = (struct tcp_pcb *)conn->state; + return tcp_write(pcb, dataptr, len, apiflags); +} + +static err_t +altcp_tcp_output(struct altcp_pcb *conn) +{ + struct tcp_pcb *pcb; + if (conn == NULL) { + return ERR_VAL; + } + ALTCP_TCP_ASSERT_CONN(conn); + pcb = (struct tcp_pcb *)conn->state; + return tcp_output(pcb); +} + +static u16_t +altcp_tcp_mss(struct altcp_pcb *conn) +{ + struct tcp_pcb *pcb; + if (conn == NULL) { + return 0; + } + ALTCP_TCP_ASSERT_CONN(conn); + pcb = (struct tcp_pcb *)conn->state; + return tcp_mss(pcb); +} + +static u16_t +altcp_tcp_sndbuf(struct altcp_pcb *conn) +{ + struct tcp_pcb *pcb; + if (conn == NULL) { + return 0; + } + ALTCP_TCP_ASSERT_CONN(conn); + pcb = (struct tcp_pcb *)conn->state; + return tcp_sndbuf(pcb); +} + +static u16_t +altcp_tcp_sndqueuelen(struct altcp_pcb *conn) +{ + struct tcp_pcb *pcb; + if (conn == NULL) { + return 0; + } + ALTCP_TCP_ASSERT_CONN(conn); + pcb = (struct tcp_pcb *)conn->state; + return tcp_sndqueuelen(pcb); +} + +static void +altcp_tcp_nagle_disable(struct altcp_pcb *conn) +{ + if (conn && conn->state) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + tcp_nagle_disable(pcb); + } +} + +static void +altcp_tcp_nagle_enable(struct altcp_pcb *conn) +{ + if (conn && conn->state) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + tcp_nagle_enable(pcb); + } +} + +static int +altcp_tcp_nagle_disabled(struct altcp_pcb *conn) +{ + if (conn && conn->state) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + return tcp_nagle_disabled(pcb); + } + return 0; +} + +static void +altcp_tcp_setprio(struct altcp_pcb *conn, u8_t prio) +{ + if (conn != NULL) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + tcp_setprio(pcb, prio); + } +} + +#if LWIP_TCP_KEEPALIVE +static void +altcp_tcp_keepalive_disable(struct altcp_pcb *conn) +{ + if (conn && conn->state) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + ip_reset_option(pcb, SOF_KEEPALIVE); + } +} + +static void +altcp_tcp_keepalive_enable(struct altcp_pcb *conn, u32_t idle, u32_t intvl, u32_t cnt) +{ + if (conn && conn->state) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + ip_set_option(pcb, SOF_KEEPALIVE); + pcb->keep_idle = idle ? idle : TCP_KEEPIDLE_DEFAULT; + pcb->keep_intvl = intvl ? intvl : TCP_KEEPINTVL_DEFAULT; + pcb->keep_cnt = cnt ? cnt : TCP_KEEPCNT_DEFAULT; + } +} +#endif + +static void +altcp_tcp_dealloc(struct altcp_pcb *conn) +{ + LWIP_UNUSED_ARG(conn); + ALTCP_TCP_ASSERT_CONN(conn); + /* no private state to clean up */ +} + +static err_t +altcp_tcp_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port) +{ + if (conn) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + return tcp_tcp_get_tcp_addrinfo(pcb, local, addr, port); + } + return ERR_VAL; +} + +static ip_addr_t * +altcp_tcp_get_ip(struct altcp_pcb *conn, int local) +{ + if (conn) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + if (pcb) { + if (local) { + return &pcb->local_ip; + } else { + return &pcb->remote_ip; + } + } + } + return NULL; +} + +static u16_t +altcp_tcp_get_port(struct altcp_pcb *conn, int local) +{ + if (conn) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + if (pcb) { + if (local) { + return pcb->local_port; + } else { + return pcb->remote_port; + } + } + } + return 0; +} + +#ifdef LWIP_DEBUG +static enum tcp_state +altcp_tcp_dbg_get_tcp_state(struct altcp_pcb *conn) +{ + if (conn) { + struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; + ALTCP_TCP_ASSERT_CONN(conn); + if (pcb) { + return pcb->state; + } + } + return CLOSED; +} +#endif +const struct altcp_functions altcp_tcp_functions = { + altcp_tcp_set_poll, + altcp_tcp_recved, + altcp_tcp_bind, + altcp_tcp_connect, + altcp_tcp_listen, + altcp_tcp_abort, + altcp_tcp_close, + altcp_tcp_shutdown, + altcp_tcp_write, + altcp_tcp_output, + altcp_tcp_mss, + altcp_tcp_sndbuf, + altcp_tcp_sndqueuelen, + altcp_tcp_nagle_disable, + altcp_tcp_nagle_enable, + altcp_tcp_nagle_disabled, + altcp_tcp_setprio, + altcp_tcp_dealloc, + altcp_tcp_get_tcp_addrinfo, + altcp_tcp_get_ip, + altcp_tcp_get_port +#if LWIP_TCP_KEEPALIVE + , altcp_tcp_keepalive_disable + , altcp_tcp_keepalive_enable +#endif +#ifdef LWIP_DEBUG + , altcp_tcp_dbg_get_tcp_state +#endif +}; + +#endif /* LWIP_ALTCP */ diff --git a/middleware/lwip/src/core/def.c b/middleware/lwip/src/core/def.c new file mode 100644 index 0000000..282fb41 --- /dev/null +++ b/middleware/lwip/src/core/def.c @@ -0,0 +1,263 @@ +/** + * @file + * Common functions used throughout the stack. + * + * These are reference implementations of the byte swapping functions. + * Again with the aim of being simple, correct and fully portable. + * Byte swapping is the second thing you would want to optimize. You will + * need to port it to your architecture and in your cc.h: + * + * \#define lwip_htons(x) your_htons + * \#define lwip_htonl(x) your_htonl + * + * Note lwip_ntohs() and lwip_ntohl() are merely references to the htonx counterparts. + * + * If you \#define them to htons() and htonl(), you should + * \#define LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS to prevent lwIP from + * defining htonx/ntohx compatibility macros. + + * @defgroup sys_nonstandard Non-standard functions + * @ingroup sys_layer + * lwIP provides default implementations for non-standard functions. + * These can be mapped to OS functions to reduce code footprint if desired. + * All defines related to this section must not be placed in lwipopts.h, + * but in arch/cc.h! + * These options cannot be \#defined in lwipopts.h since they are not options + * of lwIP itself, but options of the lwIP port to your system. + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" +#include "lwip/def.h" + +#include + +#if BYTE_ORDER == LITTLE_ENDIAN + +#if !defined(lwip_htons) +/** + * Convert an u16_t from host- to network byte order. + * + * @param n u16_t in host byte order + * @return n in network byte order + */ +u16_t +lwip_htons(u16_t n) +{ + return PP_HTONS(n); +} +#endif /* lwip_htons */ + +#if !defined(lwip_htonl) +/** + * Convert an u32_t from host- to network byte order. + * + * @param n u32_t in host byte order + * @return n in network byte order + */ +u32_t +lwip_htonl(u32_t n) +{ + return PP_HTONL(n); +} +#endif /* lwip_htonl */ + +#endif /* BYTE_ORDER == LITTLE_ENDIAN */ + +#ifndef lwip_strnstr +/** + * @ingroup sys_nonstandard + * lwIP default implementation for strnstr() non-standard function. + * This can be \#defined to strnstr() depending on your platform port. + */ +char * +lwip_strnstr(const char *buffer, const char *token, size_t n) +{ + const char *p; + size_t tokenlen = strlen(token); + if (tokenlen == 0) { + return LWIP_CONST_CAST(char *, buffer); + } + for (p = buffer; *p && (p + tokenlen <= buffer + n); p++) { + if ((*p == *token) && (strncmp(p, token, tokenlen) == 0)) { + return LWIP_CONST_CAST(char *, p); + } + } + return NULL; +} +#endif + +#ifndef lwip_strnistr +/** + * @ingroup sys_nonstandard + * lwIP default implementation for strnistr() non-standard function. + * This can be \#defined to strnistr() depending on your platform port. + */ +char * +lwip_strnistr(const char *buffer, const char *token, size_t n) +{ + const char *p; + size_t tokenlen = strlen(token); + if (tokenlen == 0) { + return LWIP_CONST_CAST(char *, buffer); + } + for (p = buffer; *p && (p + tokenlen <= buffer + n); p++) { + if (lwip_strnicmp(p, token, tokenlen) == 0) { + return LWIP_CONST_CAST(char *, p); + } + } + return NULL; +} +#endif + +#ifndef lwip_stricmp +/** + * @ingroup sys_nonstandard + * lwIP default implementation for stricmp() non-standard function. + * This can be \#defined to stricmp() depending on your platform port. + */ +int +lwip_stricmp(const char *str1, const char *str2) +{ + char c1, c2; + + do { + c1 = *str1++; + c2 = *str2++; + if (c1 != c2) { + char c1_upc = c1 | 0x20; + if ((c1_upc >= 'a') && (c1_upc <= 'z')) { + /* characters are not equal an one is in the alphabet range: + downcase both chars and check again */ + char c2_upc = c2 | 0x20; + if (c1_upc != c2_upc) { + /* still not equal */ + /* don't care for < or > */ + return 1; + } + } else { + /* characters are not equal but none is in the alphabet range */ + return 1; + } + } + } while (c1 != 0); + return 0; +} +#endif + +#ifndef lwip_strnicmp +/** + * @ingroup sys_nonstandard + * lwIP default implementation for strnicmp() non-standard function. + * This can be \#defined to strnicmp() depending on your platform port. + */ +int +lwip_strnicmp(const char *str1, const char *str2, size_t len) +{ + char c1, c2; + + do { + c1 = *str1++; + c2 = *str2++; + if (c1 != c2) { + char c1_upc = c1 | 0x20; + if ((c1_upc >= 'a') && (c1_upc <= 'z')) { + /* characters are not equal an one is in the alphabet range: + downcase both chars and check again */ + char c2_upc = c2 | 0x20; + if (c1_upc != c2_upc) { + /* still not equal */ + /* don't care for < or > */ + return 1; + } + } else { + /* characters are not equal but none is in the alphabet range */ + return 1; + } + } + len--; + } while ((len != 0) && (c1 != 0)); + return 0; +} +#endif + +#ifndef lwip_itoa +/** + * @ingroup sys_nonstandard + * lwIP default implementation for itoa() non-standard function. + * This can be \#defined to itoa() or snprintf(result, bufsize, "%d", number) depending on your platform port. + */ +void +lwip_itoa(char *result, size_t bufsize, int number) +{ + char *res = result; + char *tmp = result + bufsize - 1; + int n = (number >= 0) ? number : -number; + + /* handle invalid bufsize */ + if (bufsize < 2) { + if (bufsize == 1) { + *result = 0; + } + return; + } + + /* First, add sign */ + if (number < 0) { + *res++ = '-'; + } + /* Then create the string from the end and stop if buffer full, + and ensure output string is zero terminated */ + *tmp = 0; + while ((n != 0) && (tmp > res)) { + char val = (char)('0' + (n % 10)); + tmp--; + *tmp = val; + n = n / 10; + } + if (n) { + /* buffer is too small */ + *result = 0; + return; + } + if (*tmp == 0) { + /* Nothing added? */ + *res++ = '0'; + *res++ = 0; + return; + } + /* move from temporary buffer to output buffer (sign is not moved) */ + memmove(res, tmp, (size_t)((result + bufsize) - tmp)); +} +#endif diff --git a/middleware/lwip/src/core/dns.c b/middleware/lwip/src/core/dns.c new file mode 100644 index 0000000..f83ea9b --- /dev/null +++ b/middleware/lwip/src/core/dns.c @@ -0,0 +1,1657 @@ +/** + * @file + * DNS - host name to IP address resolver. + * + * @defgroup dns DNS + * @ingroup callbackstyle_api + * + * Implements a DNS host name to IP address resolver. + * + * The lwIP DNS resolver functions are used to lookup a host name and + * map it to a numerical IP address. It maintains a list of resolved + * hostnames that can be queried with the dns_lookup() function. + * New hostnames can be resolved using the dns_query() function. + * + * The lwIP version of the resolver also adds a non-blocking version of + * gethostbyname() that will work with a raw API application. This function + * checks for an IP address string first and converts it if it is valid. + * gethostbyname() then does a dns_lookup() to see if the name is + * already in the table. If so, the IP is returned. If not, a query is + * issued and the function returns with a ERR_INPROGRESS status. The app + * using the dns client must then go into a waiting state. + * + * Once a hostname has been resolved (or found to be non-existent), + * the resolver code calls a specified callback function (which + * must be implemented by the module that uses the resolver). + * + * Multicast DNS queries are supported for names ending on ".local". + * However, only "One-Shot Multicast DNS Queries" are supported (RFC 6762 + * chapter 5.1), this is not a fully compliant implementation of continuous + * mDNS querying! + * + * All functions must be called from TCPIP thread. + * + * @see DNS_MAX_SERVERS + * @see LWIP_DHCP_MAX_DNS_SERVERS + * @see @ref netconn_common for thread-safe access. + */ + +/* + * Port to lwIP from uIP + * by Jim Pettinato April 2007 + * + * security fixes and more by Simon Goldschmidt + * + * uIP version Copyright (c) 2002-2003, Adam Dunkels. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/*----------------------------------------------------------------------------- + * RFC 1035 - Domain names - implementation and specification + * RFC 2181 - Clarifications to the DNS Specification + *----------------------------------------------------------------------------*/ + +/** @todo: define good default values (rfc compliance) */ +/** @todo: improve answer parsing, more checkings... */ +/** @todo: check RFC1035 - 7.3. Processing responses */ +/** @todo: one-shot mDNS: dual-stack fallback to another IP version */ + +/*----------------------------------------------------------------------------- + * Includes + *----------------------------------------------------------------------------*/ + +#include "lwip/opt.h" + +#if LWIP_DNS /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/def.h" +#include "lwip/udp.h" +#include "lwip/mem.h" +#include "lwip/memp.h" +#include "lwip/dns.h" +#include "lwip/prot/dns.h" + +#include + +/** Random generator function to create random TXIDs and source ports for queries */ +#ifndef DNS_RAND_TXID +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_XID) != 0) +#define DNS_RAND_TXID LWIP_RAND +#else +static u16_t dns_txid; +#define DNS_RAND_TXID() (++dns_txid) +#endif +#endif + +/** Limits the source port to be >= 1024 by default */ +#ifndef DNS_PORT_ALLOWED +#define DNS_PORT_ALLOWED(port) ((port) >= 1024) +#endif + +/** DNS resource record max. TTL (one week as default) */ +#ifndef DNS_MAX_TTL +#define DNS_MAX_TTL 604800 +#elif DNS_MAX_TTL > 0x7FFFFFFF +#error DNS_MAX_TTL must be a positive 32-bit value +#endif + +#if DNS_TABLE_SIZE > 255 +#error DNS_TABLE_SIZE must fit into an u8_t +#endif +#if DNS_MAX_SERVERS > 255 +#error DNS_MAX_SERVERS must fit into an u8_t +#endif + +/* The number of parallel requests (i.e. calls to dns_gethostbyname + * that cannot be answered from the DNS table. + * This is set to the table size by default. + */ +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) +#ifndef DNS_MAX_REQUESTS +#define DNS_MAX_REQUESTS DNS_TABLE_SIZE +#else +#if DNS_MAX_REQUESTS > 255 +#error DNS_MAX_REQUESTS must fit into an u8_t +#endif +#endif +#else +/* In this configuration, both arrays have to have the same size and are used + * like one entry (used/free) */ +#define DNS_MAX_REQUESTS DNS_TABLE_SIZE +#endif + +/* The number of UDP source ports used in parallel */ +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) +#ifndef DNS_MAX_SOURCE_PORTS +#define DNS_MAX_SOURCE_PORTS DNS_MAX_REQUESTS +#else +#if DNS_MAX_SOURCE_PORTS > 255 +#error DNS_MAX_SOURCE_PORTS must fit into an u8_t +#endif +#endif +#else +#ifdef DNS_MAX_SOURCE_PORTS +#undef DNS_MAX_SOURCE_PORTS +#endif +#define DNS_MAX_SOURCE_PORTS 1 +#endif + +#if LWIP_IPV4 && LWIP_IPV6 +#define LWIP_DNS_ADDRTYPE_IS_IPV6(t) (((t) == LWIP_DNS_ADDRTYPE_IPV6_IPV4) || ((t) == LWIP_DNS_ADDRTYPE_IPV6)) +#define LWIP_DNS_ADDRTYPE_MATCH_IP(t, ip) (IP_IS_V6_VAL(ip) ? LWIP_DNS_ADDRTYPE_IS_IPV6(t) : (!LWIP_DNS_ADDRTYPE_IS_IPV6(t))) +#define LWIP_DNS_ADDRTYPE_ARG(x) , x +#define LWIP_DNS_ADDRTYPE_ARG_OR_ZERO(x) x +#define LWIP_DNS_SET_ADDRTYPE(x, y) do { x = y; } while(0) +#else +#if LWIP_IPV6 +#define LWIP_DNS_ADDRTYPE_IS_IPV6(t) 1 +#else +#define LWIP_DNS_ADDRTYPE_IS_IPV6(t) 0 +#endif +#define LWIP_DNS_ADDRTYPE_MATCH_IP(t, ip) 1 +#define LWIP_DNS_ADDRTYPE_ARG(x) +#define LWIP_DNS_ADDRTYPE_ARG_OR_ZERO(x) 0 +#define LWIP_DNS_SET_ADDRTYPE(x, y) +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + +#if LWIP_DNS_SUPPORT_MDNS_QUERIES +#define LWIP_DNS_ISMDNS_ARG(x) , x +#else +#define LWIP_DNS_ISMDNS_ARG(x) +#endif + +/** DNS query message structure. + No packing needed: only used locally on the stack. */ +struct dns_query { + /* DNS query record starts with either a domain name or a pointer + to a name already present somewhere in the packet. */ + u16_t type; + u16_t cls; +}; +#define SIZEOF_DNS_QUERY 4 + +/** DNS answer message structure. + No packing needed: only used locally on the stack. */ +struct dns_answer { + /* DNS answer record starts with either a domain name or a pointer + to a name already present somewhere in the packet. */ + u16_t type; + u16_t cls; + u32_t ttl; + u16_t len; +}; +#define SIZEOF_DNS_ANSWER 10 +/* maximum allowed size for the struct due to non-packed */ +#define SIZEOF_DNS_ANSWER_ASSERT 12 + +/* DNS table entry states */ +typedef enum { + DNS_STATE_UNUSED = 0, + DNS_STATE_NEW = 1, + DNS_STATE_ASKING = 2, + DNS_STATE_DONE = 3 +} dns_state_enum_t; + +/** DNS table entry */ +struct dns_table_entry { + u32_t ttl; + ip_addr_t ipaddr; + u16_t txid; + u8_t state; + u8_t server_idx; + u8_t tmr; + u8_t retries; + u8_t seqno; +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) + u8_t pcb_idx; +#endif + char name[DNS_MAX_NAME_LENGTH]; +#if LWIP_IPV4 && LWIP_IPV6 + u8_t reqaddrtype; +#endif /* LWIP_IPV4 && LWIP_IPV6 */ +#if LWIP_DNS_SUPPORT_MDNS_QUERIES + u8_t is_mdns; +#endif +}; + +/** DNS request table entry: used when dns_gehostbyname cannot answer the + * request from the DNS table */ +struct dns_req_entry { + /* pointer to callback on DNS query done */ + dns_found_callback found; + /* argument passed to the callback function */ + void *arg; +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) + u8_t dns_table_idx; +#endif +#if LWIP_IPV4 && LWIP_IPV6 + u8_t reqaddrtype; +#endif /* LWIP_IPV4 && LWIP_IPV6 */ +}; + +#if DNS_LOCAL_HOSTLIST + +#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC +/** Local host-list. For hostnames in this list, no + * external name resolution is performed */ +static struct local_hostlist_entry *local_hostlist_dynamic; +#else /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ + +/** Defining this allows the local_hostlist_static to be placed in a different + * linker section (e.g. FLASH) */ +#ifndef DNS_LOCAL_HOSTLIST_STORAGE_PRE +#define DNS_LOCAL_HOSTLIST_STORAGE_PRE static +#endif /* DNS_LOCAL_HOSTLIST_STORAGE_PRE */ +/** Defining this allows the local_hostlist_static to be placed in a different + * linker section (e.g. FLASH) */ +#ifndef DNS_LOCAL_HOSTLIST_STORAGE_POST +#define DNS_LOCAL_HOSTLIST_STORAGE_POST +#endif /* DNS_LOCAL_HOSTLIST_STORAGE_POST */ +DNS_LOCAL_HOSTLIST_STORAGE_PRE struct local_hostlist_entry local_hostlist_static[] + DNS_LOCAL_HOSTLIST_STORAGE_POST = DNS_LOCAL_HOSTLIST_INIT; + +#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ + +static void dns_init_local(void); +static err_t dns_lookup_local(const char *hostname, size_t hostnamelen, ip_addr_t *addr LWIP_DNS_ADDRTYPE_ARG(u8_t dns_addrtype)); +#endif /* DNS_LOCAL_HOSTLIST */ + + +/* forward declarations */ +static void dns_recv(void *s, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port); +static void dns_check_entries(void); +static void dns_call_found(u8_t idx, ip_addr_t *addr); + +/*----------------------------------------------------------------------------- + * Globals + *----------------------------------------------------------------------------*/ + +/* DNS variables */ +static struct udp_pcb *dns_pcbs[DNS_MAX_SOURCE_PORTS]; +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) +static u8_t dns_last_pcb_idx; +#endif +static u8_t dns_seqno; +static struct dns_table_entry dns_table[DNS_TABLE_SIZE]; +static struct dns_req_entry dns_requests[DNS_MAX_REQUESTS]; +static ip_addr_t dns_servers[DNS_MAX_SERVERS]; + +#if LWIP_IPV4 +const ip_addr_t dns_mquery_v4group = DNS_MQUERY_IPV4_GROUP_INIT; +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 +const ip_addr_t dns_mquery_v6group = DNS_MQUERY_IPV6_GROUP_INIT; +#endif /* LWIP_IPV6 */ + +/** + * Initialize the resolver: set up the UDP pcb and configure the default server + * (if DNS_SERVER_ADDRESS is set). + */ +void +dns_init(void) +{ +#ifdef DNS_SERVER_ADDRESS + /* initialize default DNS server address */ + ip_addr_t dnsserver; + DNS_SERVER_ADDRESS(&dnsserver); + dns_setserver(0, &dnsserver); +#endif /* DNS_SERVER_ADDRESS */ + + LWIP_ASSERT("sanity check SIZEOF_DNS_QUERY", + sizeof(struct dns_query) == SIZEOF_DNS_QUERY); + LWIP_ASSERT("sanity check SIZEOF_DNS_ANSWER", + sizeof(struct dns_answer) <= SIZEOF_DNS_ANSWER_ASSERT); + + LWIP_DEBUGF(DNS_DEBUG, ("dns_init: initializing\n")); + + /* if dns client not yet initialized... */ +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) == 0) + if (dns_pcbs[0] == NULL) { + dns_pcbs[0] = udp_new_ip_type(IPADDR_TYPE_ANY); + LWIP_ASSERT("dns_pcbs[0] != NULL", dns_pcbs[0] != NULL); + + /* initialize DNS table not needed (initialized to zero since it is a + * global variable) */ + LWIP_ASSERT("For implicit initialization to work, DNS_STATE_UNUSED needs to be 0", + DNS_STATE_UNUSED == 0); + + /* initialize DNS client */ + udp_bind(dns_pcbs[0], IP_ANY_TYPE, 0); + udp_recv(dns_pcbs[0], dns_recv, NULL); + } +#endif + +#if DNS_LOCAL_HOSTLIST + dns_init_local(); +#endif +} + +/** + * @ingroup dns + * Initialize one of the DNS servers. + * + * @param numdns the index of the DNS server to set must be < DNS_MAX_SERVERS + * @param dnsserver IP address of the DNS server to set + */ +void +dns_setserver(u8_t numdns, const ip_addr_t *dnsserver) +{ + if (numdns < DNS_MAX_SERVERS) { + if (dnsserver != NULL) { + dns_servers[numdns] = (*dnsserver); + } else { + dns_servers[numdns] = *IP_ADDR_ANY; + } + } +} + +/** + * @ingroup dns + * Obtain one of the currently configured DNS server. + * + * @param numdns the index of the DNS server + * @return IP address of the indexed DNS server or "ip_addr_any" if the DNS + * server has not been configured. + */ +const ip_addr_t * +dns_getserver(u8_t numdns) +{ + if (numdns < DNS_MAX_SERVERS) { + return &dns_servers[numdns]; + } else { + return IP_ADDR_ANY; + } +} + +/** + * The DNS resolver client timer - handle retries and timeouts and should + * be called every DNS_TMR_INTERVAL milliseconds (every second by default). + */ +void +dns_tmr(void) +{ + LWIP_DEBUGF(DNS_DEBUG, ("dns_tmr: dns_check_entries\n")); + dns_check_entries(); +} + +#if DNS_LOCAL_HOSTLIST +static void +dns_init_local(void) +{ +#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC && defined(DNS_LOCAL_HOSTLIST_INIT) + size_t i; + struct local_hostlist_entry *entry; + /* Dynamic: copy entries from DNS_LOCAL_HOSTLIST_INIT to list */ + struct local_hostlist_entry local_hostlist_init[] = DNS_LOCAL_HOSTLIST_INIT; + size_t namelen; + for (i = 0; i < LWIP_ARRAYSIZE(local_hostlist_init); i++) { + struct local_hostlist_entry *init_entry = &local_hostlist_init[i]; + LWIP_ASSERT("invalid host name (NULL)", init_entry->name != NULL); + namelen = strlen(init_entry->name); + LWIP_ASSERT("namelen <= DNS_LOCAL_HOSTLIST_MAX_NAMELEN", namelen <= DNS_LOCAL_HOSTLIST_MAX_NAMELEN); + entry = (struct local_hostlist_entry *)memp_malloc(MEMP_LOCALHOSTLIST); + LWIP_ASSERT("mem-error in dns_init_local", entry != NULL); + if (entry != NULL) { + char *entry_name = (char *)entry + sizeof(struct local_hostlist_entry); + MEMCPY(entry_name, init_entry->name, namelen); + entry_name[namelen] = 0; + entry->name = entry_name; + entry->addr = init_entry->addr; + entry->next = local_hostlist_dynamic; + local_hostlist_dynamic = entry; + } + } +#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC && defined(DNS_LOCAL_HOSTLIST_INIT) */ +} + +/** + * @ingroup dns + * Iterate the local host-list for a hostname. + * + * @param iterator_fn a function that is called for every entry in the local host-list + * @param iterator_arg 3rd argument passed to iterator_fn + * @return the number of entries in the local host-list + */ +size_t +dns_local_iterate(dns_found_callback iterator_fn, void *iterator_arg) +{ + size_t i; +#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC + struct local_hostlist_entry *entry = local_hostlist_dynamic; + i = 0; + while (entry != NULL) { + if (iterator_fn != NULL) { + iterator_fn(entry->name, &entry->addr, iterator_arg); + } + i++; + entry = entry->next; + } +#else /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ + for (i = 0; i < LWIP_ARRAYSIZE(local_hostlist_static); i++) { + if (iterator_fn != NULL) { + iterator_fn(local_hostlist_static[i].name, &local_hostlist_static[i].addr, iterator_arg); + } + } +#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ + return i; +} + +/** + * @ingroup dns + * Scans the local host-list for a hostname. + * + * @param hostname Hostname to look for in the local host-list + * @param addr the first IP address for the hostname in the local host-list or + * IPADDR_NONE if not found. + * @param dns_addrtype - LWIP_DNS_ADDRTYPE_IPV4_IPV6: try to resolve IPv4 (ATTENTION: no fallback here!) + * - LWIP_DNS_ADDRTYPE_IPV6_IPV4: try to resolve IPv6 (ATTENTION: no fallback here!) + * - LWIP_DNS_ADDRTYPE_IPV4: try to resolve IPv4 only + * - LWIP_DNS_ADDRTYPE_IPV6: try to resolve IPv6 only + * @return ERR_OK if found, ERR_ARG if not found + */ +err_t +dns_local_lookup(const char *hostname, ip_addr_t *addr, u8_t dns_addrtype) +{ + size_t hostnamelen; + LWIP_UNUSED_ARG(dns_addrtype); + if ((addr == NULL) || + (!hostname) || (!hostname[0])) { + return ERR_ARG; + } + hostnamelen = strlen(hostname); + if (hostname[hostnamelen - 1] == '.') { + hostnamelen--; + } + if (hostnamelen >= DNS_MAX_NAME_LENGTH) { + LWIP_DEBUGF(DNS_DEBUG, ("dns_local_lookup: name too long to resolve")); + return ERR_ARG; + } + return dns_lookup_local(hostname, hostnamelen, addr LWIP_DNS_ADDRTYPE_ARG(dns_addrtype)); +} + +/* Internal implementation for dns_local_lookup and dns_lookup */ +static err_t +dns_lookup_local(const char *hostname, size_t hostnamelen, ip_addr_t *addr LWIP_DNS_ADDRTYPE_ARG(u8_t dns_addrtype)) +{ +#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC + struct local_hostlist_entry *entry = local_hostlist_dynamic; + while (entry != NULL) { + if ((lwip_strnicmp(entry->name, hostname, hostnamelen) == 0) && + !entry->name[hostnamelen] && + LWIP_DNS_ADDRTYPE_MATCH_IP(dns_addrtype, entry->addr)) { + if (addr) { + ip_addr_copy(*addr, entry->addr); + } + return ERR_OK; + } + entry = entry->next; + } +#else /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ + size_t i; + for (i = 0; i < LWIP_ARRAYSIZE(local_hostlist_static); i++) { + if ((lwip_strnicmp(local_hostlist_static[i].name, hostname, hostnamelen) == 0) && + !local_hostlist_static[i].name[hostnamelen] && + LWIP_DNS_ADDRTYPE_MATCH_IP(dns_addrtype, local_hostlist_static[i].addr)) { + if (addr) { + ip_addr_copy(*addr, local_hostlist_static[i].addr); + } + return ERR_OK; + } + } +#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ + return ERR_ARG; +} + +#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC +/** + * @ingroup dns + * Remove all entries from the local host-list for a specific hostname + * and/or IP address + * + * @param hostname hostname for which entries shall be removed from the local + * host-list + * @param addr address for which entries shall be removed from the local host-list + * @return the number of removed entries + */ +int +dns_local_removehost(const char *hostname, const ip_addr_t *addr) +{ + int removed = 0; + struct local_hostlist_entry *entry = local_hostlist_dynamic; + struct local_hostlist_entry *last_entry = NULL; + while (entry != NULL) { + if (((hostname == NULL) || !lwip_stricmp(entry->name, hostname)) && + ((addr == NULL) || ip_addr_eq(&entry->addr, addr))) { + struct local_hostlist_entry *free_entry; + if (last_entry != NULL) { + last_entry->next = entry->next; + } else { + local_hostlist_dynamic = entry->next; + } + free_entry = entry; + entry = entry->next; + memp_free(MEMP_LOCALHOSTLIST, free_entry); + removed++; + } else { + last_entry = entry; + entry = entry->next; + } + } + return removed; +} + +/** + * @ingroup dns + * Add a hostname/IP address pair to the local host-list. + * Duplicates are not checked. + * + * @param hostname hostname of the new entry + * @param addr IP address of the new entry + * @return ERR_OK if succeeded or ERR_MEM on memory error + */ +err_t +dns_local_addhost(const char *hostname, const ip_addr_t *addr) +{ + struct local_hostlist_entry *entry; + size_t namelen; + char *entry_name; + LWIP_ASSERT("invalid host name (NULL)", hostname != NULL); + namelen = strlen(hostname); + LWIP_ASSERT("namelen <= DNS_LOCAL_HOSTLIST_MAX_NAMELEN", namelen <= DNS_LOCAL_HOSTLIST_MAX_NAMELEN); + entry = (struct local_hostlist_entry *)memp_malloc(MEMP_LOCALHOSTLIST); + if (entry == NULL) { + return ERR_MEM; + } + entry_name = (char *)entry + sizeof(struct local_hostlist_entry); + MEMCPY(entry_name, hostname, namelen); + entry_name[namelen] = 0; + entry->name = entry_name; + ip_addr_copy(entry->addr, *addr); + entry->next = local_hostlist_dynamic; + local_hostlist_dynamic = entry; + return ERR_OK; +} +#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC*/ +#endif /* DNS_LOCAL_HOSTLIST */ + +/** + * @ingroup dns + * Look up a hostname in the array of known hostnames. + * + * @note This function only looks in the internal array of known + * hostnames, it does not send out a query for the hostname if none + * was found. The function dns_enqueue() can be used to send a query + * for a hostname. + * + * @param name the hostname to look up + * @param hostnamelen length of the hostname + * @param addr the hostname's IP address, as u32_t (instead of ip_addr_t to + * better check for failure: != IPADDR_NONE) or IPADDR_NONE if the hostname + * was not found in the cached dns_table. + * @return ERR_OK if found, ERR_ARG if not found + */ +static err_t +dns_lookup(const char *name, size_t hostnamelen, ip_addr_t *addr LWIP_DNS_ADDRTYPE_ARG(u8_t dns_addrtype)) +{ + size_t namelen; + u8_t i; +#if DNS_LOCAL_HOSTLIST + if (dns_lookup_local(name, hostnamelen, addr LWIP_DNS_ADDRTYPE_ARG(dns_addrtype)) == ERR_OK) { + return ERR_OK; + } +#endif /* DNS_LOCAL_HOSTLIST */ +#ifdef DNS_LOOKUP_LOCAL_EXTERN + if (DNS_LOOKUP_LOCAL_EXTERN(name, hostnamelen, addr, LWIP_DNS_ADDRTYPE_ARG_OR_ZERO(dns_addrtype)) == ERR_OK) { + return ERR_OK; + } +#endif /* DNS_LOOKUP_LOCAL_EXTERN */ + + namelen = LWIP_MIN(hostnamelen, DNS_MAX_NAME_LENGTH - 1); + /* Walk through name list, return entry if found. If not, return NULL. */ + for (i = 0; i < DNS_TABLE_SIZE; ++i) { + if ((dns_table[i].state == DNS_STATE_DONE) && + (lwip_strnicmp(name, dns_table[i].name, namelen) == 0) && + !dns_table[i].name[namelen] && + LWIP_DNS_ADDRTYPE_MATCH_IP(dns_addrtype, dns_table[i].ipaddr)) { + LWIP_DEBUGF(DNS_DEBUG, ("dns_lookup: \"%s\": found = ", name)); + ip_addr_debug_print_val(DNS_DEBUG, dns_table[i].ipaddr); + LWIP_DEBUGF(DNS_DEBUG, ("\n")); + if (addr) { + ip_addr_copy(*addr, dns_table[i].ipaddr); + } + return ERR_OK; + } + } + + return ERR_ARG; +} + +/** + * Compare the "dotted" name "query" with the encoded name "response" + * to make sure an answer from the DNS server matches the current dns_table + * entry (otherwise, answers might arrive late for hostname not on the list + * any more). + * + * For now, this function compares case-insensitive to cope with all kinds of + * servers. This also means that "dns 0x20 bit encoding" must be checked + * externally, if we want to implement it. + * Currently, the request is sent exactly as passed in by he user request. + * + * @param query hostname (not encoded) from the dns_table + * @param p pbuf containing the encoded hostname in the DNS response + * @param start_offset offset into p where the name starts + * @return 0xFFFF: names differ, other: names equal -> offset behind name + */ +static u16_t +dns_compare_name(const char *query, struct pbuf *p, u16_t start_offset) +{ + int n; + u16_t response_offset = start_offset; + + do { + n = pbuf_try_get_at(p, response_offset); + if ((n < 0) || (response_offset == 0xFFFF)) { + /* error or overflow */ + return 0xFFFF; + } + response_offset++; + /** @see RFC 1035 - 4.1.4. Message compression */ + if ((n & 0xc0) == 0xc0) { + /* Compressed name: cannot be equal since we don't send them */ + return 0xFFFF; + } else { + /* Not compressed name */ + while (n > 0) { + int c = pbuf_try_get_at(p, response_offset); + if (c < 0) { + return 0xFFFF; + } + if (lwip_tolower((*query)) != lwip_tolower((u8_t)c)) { + return 0xFFFF; + } + if (response_offset == 0xFFFF) { + /* would overflow */ + return 0xFFFF; + } + response_offset++; + ++query; + --n; + } + ++query; + } + n = pbuf_try_get_at(p, response_offset); + if (n < 0) { + return 0xFFFF; + } + } while (n != 0); + + if (response_offset == 0xFFFF) { + /* would overflow */ + return 0xFFFF; + } + return (u16_t)(response_offset + 1); +} + +/** + * Walk through a compact encoded DNS name and return the end of the name. + * + * @param p pbuf containing the name + * @param query_idx start index into p pointing to encoded DNS name in the DNS server response + * @return index to end of the name + */ +static u16_t +dns_skip_name(struct pbuf *p, u16_t query_idx) +{ + int n; + u16_t offset = query_idx; + + do { + n = pbuf_try_get_at(p, offset++); + if ((n < 0) || (offset == 0)) { + return 0xFFFF; + } + /** @see RFC 1035 - 4.1.4. Message compression */ + if ((n & 0xc0) == 0xc0) { + /* Compressed name: since we only want to skip it (not check it), stop here */ + break; + } else { + /* Not compressed name */ + if (offset + n >= p->tot_len) { + return 0xFFFF; + } + offset = (u16_t)(offset + n); + } + n = pbuf_try_get_at(p, offset); + if (n < 0) { + return 0xFFFF; + } + } while (n != 0); + + if (offset == 0xFFFF) { + return 0xFFFF; + } + return (u16_t)(offset + 1); +} + +/** + * Send a DNS query packet. + * + * @param idx the DNS table entry index for which to send a request + * @return ERR_OK if packet is sent; an err_t indicating the problem otherwise + */ +static err_t +dns_send(u8_t idx) +{ + err_t err; + struct dns_hdr hdr; + struct dns_query qry; + struct pbuf *p; + u16_t query_idx, copy_len; + const char *hostname, *hostname_part; + u8_t n; + u8_t pcb_idx; + struct dns_table_entry *entry = &dns_table[idx]; + + LWIP_DEBUGF(DNS_DEBUG, ("dns_send: dns_servers[%"U16_F"] \"%s\": request\n", + (u16_t)(entry->server_idx), entry->name)); + LWIP_ASSERT("dns server out of array", entry->server_idx < DNS_MAX_SERVERS); + if (ip_addr_isany_val(dns_servers[entry->server_idx]) +#if LWIP_DNS_SUPPORT_MDNS_QUERIES + && !entry->is_mdns +#endif + ) { + /* DNS server not valid anymore, e.g. PPP netif has been shut down */ + /* call specified callback function if provided */ + dns_call_found(idx, NULL); + /* flush this entry */ + entry->state = DNS_STATE_UNUSED; + return ERR_OK; + } + + /* if here, we have either a new query or a retry on a previous query to process */ + p = pbuf_alloc(PBUF_TRANSPORT, (u16_t)(SIZEOF_DNS_HDR + strlen(entry->name) + 2 + + SIZEOF_DNS_QUERY), PBUF_RAM); + if (p != NULL) { + const ip_addr_t *dst; + u16_t dst_port; + /* fill dns header */ + memset(&hdr, 0, SIZEOF_DNS_HDR); + hdr.id = lwip_htons(entry->txid); + hdr.flags1 = DNS_FLAG1_RD; + hdr.numquestions = PP_HTONS(1); + pbuf_take(p, &hdr, SIZEOF_DNS_HDR); + hostname = entry->name; + --hostname; + + /* convert hostname into suitable query format. */ + query_idx = SIZEOF_DNS_HDR; + do { + ++hostname; + hostname_part = hostname; + for (n = 0; *hostname != '.' && *hostname != 0; ++hostname) { + ++n; + } + copy_len = (u16_t)(hostname - hostname_part); + if (query_idx + n + 1 > 0xFFFF) { + /* u16_t overflow */ + goto overflow_return; + } + pbuf_put_at(p, query_idx, n); + pbuf_take_at(p, hostname_part, copy_len, (u16_t)(query_idx + 1)); + query_idx = (u16_t)(query_idx + n + 1); + } while (*hostname != 0); + pbuf_put_at(p, query_idx, 0); + query_idx++; + + /* fill dns query */ + if (LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype)) { + qry.type = PP_HTONS(DNS_RRTYPE_AAAA); + } else { + qry.type = PP_HTONS(DNS_RRTYPE_A); + } + qry.cls = PP_HTONS(DNS_RRCLASS_IN); + pbuf_take_at(p, &qry, SIZEOF_DNS_QUERY, query_idx); + +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) + pcb_idx = entry->pcb_idx; +#else + pcb_idx = 0; +#endif + /* send dns packet */ + LWIP_DEBUGF(DNS_DEBUG, ("sending DNS request ID %d for name \"%s\" to server %d\r\n", + entry->txid, entry->name, entry->server_idx)); +#if LWIP_DNS_SUPPORT_MDNS_QUERIES + if (entry->is_mdns) { + dst_port = DNS_MQUERY_PORT; +#if LWIP_IPV6 + if (LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype)) { + dst = &dns_mquery_v6group; + } +#endif +#if LWIP_IPV4 && LWIP_IPV6 + else +#endif +#if LWIP_IPV4 + { + dst = &dns_mquery_v4group; + } +#endif + } else +#endif /* LWIP_DNS_SUPPORT_MDNS_QUERIES */ + { + dst_port = DNS_SERVER_PORT; + dst = &dns_servers[entry->server_idx]; + } + err = udp_sendto(dns_pcbs[pcb_idx], p, dst, dst_port); + + /* free pbuf */ + pbuf_free(p); + } else { + err = ERR_MEM; + } + + return err; +overflow_return: + pbuf_free(p); + return ERR_VAL; +} + +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) +static struct udp_pcb * +dns_alloc_random_port(void) +{ + err_t err; + struct udp_pcb *pcb; + + pcb = udp_new_ip_type(IPADDR_TYPE_ANY); + if (pcb == NULL) { + /* out of memory, have to reuse an existing pcb */ + return NULL; + } + do { + u16_t port = (u16_t)DNS_RAND_TXID(); + if (DNS_PORT_ALLOWED(port)) { + err = udp_bind(pcb, IP_ANY_TYPE, port); + } else { + /* this port is not allowed, try again */ + err = ERR_USE; + } + } while (err == ERR_USE); + if (err != ERR_OK) { + udp_remove(pcb); + return NULL; + } + udp_recv(pcb, dns_recv, NULL); + return pcb; +} + +/** + * dns_alloc_pcb() - allocates a new pcb (or reuses an existing one) to be used + * for sending a request + * + * @return an index into dns_pcbs + */ +static u8_t +dns_alloc_pcb(void) +{ + u8_t i; + u8_t idx; + + for (i = 0; i < DNS_MAX_SOURCE_PORTS; i++) { + if (dns_pcbs[i] == NULL) { + break; + } + } + if (i < DNS_MAX_SOURCE_PORTS) { + dns_pcbs[i] = dns_alloc_random_port(); + if (dns_pcbs[i] != NULL) { + /* succeeded */ + dns_last_pcb_idx = i; + return i; + } + } + /* if we come here, creating a new UDP pcb failed, so we have to use + an already existing one (so overflow is no issue) */ + for (i = 0, idx = (u8_t)(dns_last_pcb_idx + 1); i < DNS_MAX_SOURCE_PORTS; i++, idx++) { + if (idx >= DNS_MAX_SOURCE_PORTS) { + idx = 0; + } + if (dns_pcbs[idx] != NULL) { + dns_last_pcb_idx = idx; + return idx; + } + } + return DNS_MAX_SOURCE_PORTS; +} +#endif /* ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) */ + +/** + * dns_call_found() - call the found callback and check if there are duplicate + * entries for the given hostname. If there are any, their found callback will + * be called and they will be removed. + * + * @param idx dns table index of the entry that is resolved or removed + * @param addr IP address for the hostname (or NULL on error or memory shortage) + */ +static void +dns_call_found(u8_t idx, ip_addr_t *addr) +{ +#if ((LWIP_DNS_SECURE & (LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT)) != 0) + u8_t i; +#endif + +#if LWIP_IPV4 && LWIP_IPV6 + if (addr != NULL) { + /* check that address type matches the request and adapt the table entry */ + if (IP_IS_V6_VAL(*addr)) { + LWIP_ASSERT("invalid response", LWIP_DNS_ADDRTYPE_IS_IPV6(dns_table[idx].reqaddrtype)); + dns_table[idx].reqaddrtype = LWIP_DNS_ADDRTYPE_IPV6; + } else { + LWIP_ASSERT("invalid response", !LWIP_DNS_ADDRTYPE_IS_IPV6(dns_table[idx].reqaddrtype)); + dns_table[idx].reqaddrtype = LWIP_DNS_ADDRTYPE_IPV4; + } + } +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) + for (i = 0; i < DNS_MAX_REQUESTS; i++) { + if (dns_requests[i].found && (dns_requests[i].dns_table_idx == idx)) { + (*dns_requests[i].found)(dns_table[idx].name, addr, dns_requests[i].arg); + /* flush this entry */ + dns_requests[i].found = NULL; + } + } +#else + if (dns_requests[idx].found) { + (*dns_requests[idx].found)(dns_table[idx].name, addr, dns_requests[idx].arg); + } + dns_requests[idx].found = NULL; +#endif +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) + /* close the pcb used unless other request are using it */ + for (i = 0; i < DNS_MAX_REQUESTS; i++) { + if (i == idx) { + continue; /* only check other requests */ + } + if (dns_table[i].state == DNS_STATE_ASKING) { + if (dns_table[i].pcb_idx == dns_table[idx].pcb_idx) { + /* another request is still using the same pcb */ + dns_table[idx].pcb_idx = DNS_MAX_SOURCE_PORTS; + break; + } + } + } + if (dns_table[idx].pcb_idx < DNS_MAX_SOURCE_PORTS) { + /* if we come here, the pcb is not used any more and can be removed */ + udp_remove(dns_pcbs[dns_table[idx].pcb_idx]); + dns_pcbs[dns_table[idx].pcb_idx] = NULL; + dns_table[idx].pcb_idx = DNS_MAX_SOURCE_PORTS; + } +#endif +} + +/* Create a query transmission ID that is unique for all outstanding queries */ +static u16_t +dns_create_txid(void) +{ + u16_t txid; + u8_t i; + +again: + txid = (u16_t)DNS_RAND_TXID(); + + /* check whether the ID is unique */ + for (i = 0; i < DNS_TABLE_SIZE; i++) { + if ((dns_table[i].state == DNS_STATE_ASKING) && + (dns_table[i].txid == txid)) { + /* ID already used by another pending query */ + goto again; + } + } + + return txid; +} + +/** + * Check whether there are other backup DNS servers available to try + */ +static u8_t +dns_backupserver_available(struct dns_table_entry *pentry) +{ + u8_t ret = 0; + + if (pentry) { + if ((pentry->server_idx + 1 < DNS_MAX_SERVERS) && !ip_addr_isany_val(dns_servers[pentry->server_idx + 1])) { + ret = 1; + } + } + + return ret; +} + +/** + * dns_check_entry() - see if entry has not yet been queried and, if so, sends out a query. + * Check an entry in the dns_table: + * - send out query for new entries + * - retry old pending entries on timeout (also with different servers) + * - remove completed entries from the table if their TTL has expired + * + * @param i index of the dns_table entry to check + */ +static void +dns_check_entry(u8_t i) +{ + err_t err; + struct dns_table_entry *entry = &dns_table[i]; + + LWIP_ASSERT("array index out of bounds", i < DNS_TABLE_SIZE); + + switch (entry->state) { + case DNS_STATE_NEW: + /* initialize new entry */ + entry->txid = dns_create_txid(); + entry->state = DNS_STATE_ASKING; + entry->server_idx = 0; + entry->tmr = 1; + entry->retries = 0; + + /* send DNS packet for this entry */ + err = dns_send(i); + if (err != ERR_OK) { + LWIP_DEBUGF(DNS_DEBUG | LWIP_DBG_LEVEL_WARNING, + ("dns_send returned error: %s\n", lwip_strerr(err))); + } + break; + case DNS_STATE_ASKING: + if (--entry->tmr == 0) { + if (++entry->retries == DNS_MAX_RETRIES) { + if (dns_backupserver_available(entry) +#if LWIP_DNS_SUPPORT_MDNS_QUERIES + && !entry->is_mdns +#endif /* LWIP_DNS_SUPPORT_MDNS_QUERIES */ + ) { + /* change of server */ + entry->server_idx++; + entry->tmr = 1; + entry->retries = 0; + } else { + LWIP_DEBUGF(DNS_DEBUG, ("dns_check_entry: \"%s\": timeout\n", entry->name)); + /* call specified callback function if provided */ + dns_call_found(i, NULL); + /* flush this entry */ + entry->state = DNS_STATE_UNUSED; + break; + } + } else { + /* wait longer for the next retry */ + entry->tmr = entry->retries; + } + + /* send DNS packet for this entry */ + err = dns_send(i); + if (err != ERR_OK) { + LWIP_DEBUGF(DNS_DEBUG | LWIP_DBG_LEVEL_WARNING, + ("dns_send returned error: %s\n", lwip_strerr(err))); + } + } + break; + case DNS_STATE_DONE: + /* if the time to live is nul */ + if ((entry->ttl == 0) || (--entry->ttl == 0)) { + LWIP_DEBUGF(DNS_DEBUG, ("dns_check_entry: \"%s\": flush\n", entry->name)); + /* flush this entry, there cannot be any related pending entries in this state */ + entry->state = DNS_STATE_UNUSED; + } + break; + case DNS_STATE_UNUSED: + /* nothing to do */ + break; + default: + LWIP_ASSERT("unknown dns_table entry state:", 0); + break; + } +} + +/** + * Call dns_check_entry for each entry in dns_table - check all entries. + */ +static void +dns_check_entries(void) +{ + u8_t i; + + for (i = 0; i < DNS_TABLE_SIZE; ++i) { + dns_check_entry(i); + } +} + +/** + * Save TTL and call dns_call_found for correct response. + */ +static void +dns_correct_response(u8_t idx, u32_t ttl) +{ + struct dns_table_entry *entry = &dns_table[idx]; + + entry->state = DNS_STATE_DONE; + + LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": response = ", entry->name)); + ip_addr_debug_print_val(DNS_DEBUG, entry->ipaddr); + LWIP_DEBUGF(DNS_DEBUG, ("\n")); + + /* read the answer resource record's TTL, and maximize it if needed */ + entry->ttl = ttl; + if (entry->ttl > DNS_MAX_TTL) { + entry->ttl = DNS_MAX_TTL; + } + dns_call_found(idx, &entry->ipaddr); + + if (entry->ttl == 0) { + /* RFC 883, page 29: "Zero values are + interpreted to mean that the RR can only be used for the + transaction in progress, and should not be cached." + -> flush this entry now */ + /* entry reused during callback? */ + if (entry->state == DNS_STATE_DONE) { + entry->state = DNS_STATE_UNUSED; + } + } +} + +/** + * Receive input function for DNS response packets arriving for the dns UDP pcb. + */ +static void +dns_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) +{ + u8_t i; + u16_t txid; + u16_t res_idx; + struct dns_hdr hdr; + struct dns_answer ans; + struct dns_query qry; + u16_t nquestions, nanswers; + + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(port); + + /* is the dns message big enough ? */ + if (p->tot_len < (SIZEOF_DNS_HDR + SIZEOF_DNS_QUERY)) { + LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: pbuf too small\n")); + /* free pbuf and return */ + goto ignore_packet; + } + + /* copy dns payload inside static buffer for processing */ + if (pbuf_copy_partial(p, &hdr, SIZEOF_DNS_HDR, 0) == SIZEOF_DNS_HDR) { + /* Match the ID in the DNS header with the name table. */ + txid = lwip_htons(hdr.id); + for (i = 0; i < DNS_TABLE_SIZE; i++) { + struct dns_table_entry *entry = &dns_table[i]; + if ((entry->state == DNS_STATE_ASKING) && + (entry->txid == txid)) { + + /* We only care about the question(s) and the answers. The authrr + and the extrarr are simply discarded. */ + nquestions = lwip_htons(hdr.numquestions); + nanswers = lwip_htons(hdr.numanswers); + + /* Check for correct response. */ + if ((hdr.flags1 & DNS_FLAG1_RESPONSE) == 0) { + LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": not a response\n", entry->name)); + goto ignore_packet; /* ignore this packet */ + } + if (nquestions != 1) { + LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": response not match to query\n", entry->name)); + goto ignore_packet; /* ignore this packet */ + } + +#if LWIP_DNS_SUPPORT_MDNS_QUERIES + if (!entry->is_mdns) +#endif /* LWIP_DNS_SUPPORT_MDNS_QUERIES */ + { + /* Check whether response comes from the same network address to which the + question was sent. (RFC 5452) */ + if (!ip_addr_eq(addr, &dns_servers[entry->server_idx])) { + goto ignore_packet; /* ignore this packet */ + } + } + + /* Check if the name in the "question" part match with the name in the entry and + skip it if equal. */ + res_idx = dns_compare_name(entry->name, p, SIZEOF_DNS_HDR); + if (res_idx == 0xFFFF) { + LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": response not match to query\n", entry->name)); + goto ignore_packet; /* ignore this packet */ + } + + /* check if "question" part matches the request */ + if (pbuf_copy_partial(p, &qry, SIZEOF_DNS_QUERY, res_idx) != SIZEOF_DNS_QUERY) { + goto ignore_packet; /* ignore this packet */ + } + if ((qry.cls != PP_HTONS(DNS_RRCLASS_IN)) || + (LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype) && (qry.type != PP_HTONS(DNS_RRTYPE_AAAA))) || + (!LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype) && (qry.type != PP_HTONS(DNS_RRTYPE_A)))) { + LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": response not match to query\n", entry->name)); + goto ignore_packet; /* ignore this packet */ + } + /* skip the rest of the "question" part */ + if (res_idx + SIZEOF_DNS_QUERY > 0xFFFF) { + goto ignore_packet; + } + res_idx = (u16_t)(res_idx + SIZEOF_DNS_QUERY); + + /* Check for error. If so, call callback to inform. */ + if (hdr.flags2 & DNS_FLAG2_ERR_MASK) { + LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": error in flags\n", entry->name)); + + /* if there is another backup DNS server to try + * then don't stop the DNS request + */ + if (dns_backupserver_available(entry)) { + /* avoid retrying the same server */ + entry->retries = DNS_MAX_RETRIES-1; + entry->tmr = 1; + + /* contact next available server for this entry */ + dns_check_entry(i); + + goto ignore_packet; + } + } else { + while ((nanswers > 0) && (res_idx < p->tot_len)) { + /* skip answer resource record's host name */ + res_idx = dns_skip_name(p, res_idx); + if (res_idx == 0xFFFF) { + goto ignore_packet; /* ignore this packet */ + } + + /* Check for IP address type and Internet class. Others are discarded. */ + if (pbuf_copy_partial(p, &ans, SIZEOF_DNS_ANSWER, res_idx) != SIZEOF_DNS_ANSWER) { + goto ignore_packet; /* ignore this packet */ + } + if (res_idx + SIZEOF_DNS_ANSWER > 0xFFFF) { + goto ignore_packet; + } + res_idx = (u16_t)(res_idx + SIZEOF_DNS_ANSWER); + + if (ans.cls == PP_HTONS(DNS_RRCLASS_IN)) { +#if LWIP_IPV4 + if ((ans.type == PP_HTONS(DNS_RRTYPE_A)) && (ans.len == PP_HTONS(sizeof(ip4_addr_t)))) { +#if LWIP_IPV4 && LWIP_IPV6 + if (!LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype)) +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + { + ip4_addr_t ip4addr; + /* read the IP address after answer resource record's header */ + if (pbuf_copy_partial(p, &ip4addr, sizeof(ip4_addr_t), res_idx) != sizeof(ip4_addr_t)) { + goto ignore_packet; /* ignore this packet */ + } + ip_addr_copy_from_ip4(dns_table[i].ipaddr, ip4addr); + pbuf_free(p); + /* handle correct response */ + dns_correct_response(i, lwip_ntohl(ans.ttl)); + return; + } + } +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + if ((ans.type == PP_HTONS(DNS_RRTYPE_AAAA)) && (ans.len == PP_HTONS(sizeof(ip6_addr_p_t)))) { +#if LWIP_IPV4 && LWIP_IPV6 + if (LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype)) +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + { + ip6_addr_p_t ip6addr; + /* read the IP address after answer resource record's header */ + if (pbuf_copy_partial(p, &ip6addr, sizeof(ip6_addr_p_t), res_idx) != sizeof(ip6_addr_p_t)) { + goto ignore_packet; /* ignore this packet */ + } + /* @todo: scope ip6addr? Might be required for link-local addresses at least? */ + ip_addr_copy_from_ip6_packed(dns_table[i].ipaddr, ip6addr); + pbuf_free(p); + /* handle correct response */ + dns_correct_response(i, lwip_ntohl(ans.ttl)); + return; + } + } +#endif /* LWIP_IPV6 */ + } + /* skip this answer */ + if ((int)(res_idx + lwip_htons(ans.len)) > 0xFFFF) { + goto ignore_packet; /* ignore this packet */ + } + res_idx = (u16_t)(res_idx + lwip_htons(ans.len)); + --nanswers; + } +#if LWIP_IPV4 && LWIP_IPV6 + if ((entry->reqaddrtype == LWIP_DNS_ADDRTYPE_IPV4_IPV6) || + (entry->reqaddrtype == LWIP_DNS_ADDRTYPE_IPV6_IPV4)) { + if (entry->reqaddrtype == LWIP_DNS_ADDRTYPE_IPV4_IPV6) { + /* IPv4 failed, try IPv6 */ + dns_table[i].reqaddrtype = LWIP_DNS_ADDRTYPE_IPV6; + } else { + /* IPv6 failed, try IPv4 */ + dns_table[i].reqaddrtype = LWIP_DNS_ADDRTYPE_IPV4; + } + pbuf_free(p); + dns_table[i].state = DNS_STATE_NEW; + dns_check_entry(i); + return; + } +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": error in response\n", entry->name)); + } + /* call callback to indicate error, clean up memory and return */ + pbuf_free(p); + dns_call_found(i, NULL); + dns_table[i].state = DNS_STATE_UNUSED; + return; + } + } + } + +ignore_packet: + /* deallocate memory and return */ + pbuf_free(p); + return; +} + +/** + * Queues a new hostname to resolve and sends out a DNS query for that hostname + * + * @param name the hostname that is to be queried + * @param hostnamelen length of the hostname + * @param found a callback function to be called on success, failure or timeout + * @param callback_arg argument to pass to the callback function + * @return err_t return code. + */ +static err_t +dns_enqueue(const char *name, size_t hostnamelen, dns_found_callback found, + void *callback_arg LWIP_DNS_ADDRTYPE_ARG(u8_t dns_addrtype) LWIP_DNS_ISMDNS_ARG(u8_t is_mdns)) +{ + u8_t i; + u8_t lseq, lseqi; + struct dns_table_entry *entry = NULL; + size_t namelen; + struct dns_req_entry *req; +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) + u8_t r; +#endif + + namelen = LWIP_MIN(hostnamelen, DNS_MAX_NAME_LENGTH - 1); + +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) + /* check for duplicate entries */ + for (i = 0; i < DNS_TABLE_SIZE; i++) { + if ((dns_table[i].state == DNS_STATE_ASKING) && + (lwip_strnicmp(name, dns_table[i].name, namelen) == 0) && + !dns_table[i].name[namelen]) { +#if LWIP_IPV4 && LWIP_IPV6 + if (dns_table[i].reqaddrtype != dns_addrtype) { + /* requested address types don't match + this can lead to 2 concurrent requests, but mixing the address types + for the same host should not be that common */ + continue; + } +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + /* this is a duplicate entry, find a free request entry */ + for (r = 0; r < DNS_MAX_REQUESTS; r++) { + if (dns_requests[r].found == 0) { + dns_requests[r].found = found; + dns_requests[r].arg = callback_arg; + dns_requests[r].dns_table_idx = i; + LWIP_DNS_SET_ADDRTYPE(dns_requests[r].reqaddrtype, dns_addrtype); + LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": duplicate request\n", name)); + return ERR_INPROGRESS; + } + } + } + } + /* no duplicate entries found */ +#endif + + /* search an unused entry, or the oldest one */ + lseq = 0; + lseqi = DNS_TABLE_SIZE; + for (i = 0; i < DNS_TABLE_SIZE; ++i) { + entry = &dns_table[i]; + /* is it an unused entry ? */ + if (entry->state == DNS_STATE_UNUSED) { + break; + } + /* check if this is the oldest completed entry */ + if (entry->state == DNS_STATE_DONE) { + u8_t age = (u8_t)(dns_seqno - entry->seqno); + if (age > lseq) { + lseq = age; + lseqi = i; + } + } + } + + /* if we don't have found an unused entry, use the oldest completed one */ + if (i == DNS_TABLE_SIZE) { + if ((lseqi >= DNS_TABLE_SIZE) || (dns_table[lseqi].state != DNS_STATE_DONE)) { + /* no entry can be used now, table is full */ + LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": DNS entries table is full\n", name)); + return ERR_MEM; + } else { + /* use the oldest completed one */ + i = lseqi; + entry = &dns_table[i]; + } + } + +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) + /* find a free request entry */ + req = NULL; + for (r = 0; r < DNS_MAX_REQUESTS; r++) { + if (dns_requests[r].found == NULL) { + req = &dns_requests[r]; + break; + } + } + if (req == NULL) { + /* no request entry can be used now, table is full */ + LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": DNS request entries table is full\n", name)); + return ERR_MEM; + } + req->dns_table_idx = i; +#else + /* in this configuration, the entry index is the same as the request index */ + req = &dns_requests[i]; +#endif + + /* use this entry */ + LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": use DNS entry %"U16_F"\n", name, (u16_t)(i))); + + /* fill the entry */ + entry->state = DNS_STATE_NEW; + entry->seqno = dns_seqno; + LWIP_DNS_SET_ADDRTYPE(entry->reqaddrtype, dns_addrtype); + LWIP_DNS_SET_ADDRTYPE(req->reqaddrtype, dns_addrtype); + req->found = found; + req->arg = callback_arg; + MEMCPY(entry->name, name, namelen); + entry->name[namelen] = 0; + +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) + entry->pcb_idx = dns_alloc_pcb(); + if (entry->pcb_idx >= DNS_MAX_SOURCE_PORTS) { + /* failed to get a UDP pcb */ + LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": failed to allocate a pcb\n", name)); + entry->state = DNS_STATE_UNUSED; + req->found = NULL; + return ERR_MEM; + } + LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": use DNS pcb %"U16_F"\n", name, (u16_t)(entry->pcb_idx))); +#endif + +#if LWIP_DNS_SUPPORT_MDNS_QUERIES + entry->is_mdns = is_mdns; +#endif + + dns_seqno++; + + /* force to send query without waiting timer */ + dns_check_entry(i); + + /* dns query is enqueued */ + return ERR_INPROGRESS; +} + +/** + * @ingroup dns + * Resolve a hostname (string) into an IP address. + * NON-BLOCKING callback version for use with raw API!!! + * + * Returns immediately with one of err_t return codes: + * - ERR_OK if hostname is a valid IP address string or the host + * name is already in the local names table. + * - ERR_INPROGRESS enqueue a request to be sent to the DNS server + * for resolution if no errors are present. + * - ERR_ARG: dns client not initialized or invalid hostname + * + * @param hostname the hostname that is to be queried + * @param addr pointer to a ip_addr_t where to store the address if it is already + * cached in the dns_table (only valid if ERR_OK is returned!) + * @param found a callback function to be called on success, failure or timeout (only if + * ERR_INPROGRESS is returned!) + * @param callback_arg argument to pass to the callback function + * @return a err_t return code. + */ +err_t +dns_gethostbyname(const char *hostname, ip_addr_t *addr, dns_found_callback found, + void *callback_arg) +{ + return dns_gethostbyname_addrtype(hostname, addr, found, callback_arg, LWIP_DNS_ADDRTYPE_DEFAULT); +} + +/** + * @ingroup dns + * Like dns_gethostbyname, but returned address type can be controlled: + * @param hostname the hostname that is to be queried + * @param addr pointer to a ip_addr_t where to store the address if it is already + * cached in the dns_table (only valid if ERR_OK is returned!) + * @param found a callback function to be called on success, failure or timeout (only if + * ERR_INPROGRESS is returned!) + * @param callback_arg argument to pass to the callback function + * @param dns_addrtype - LWIP_DNS_ADDRTYPE_IPV4_IPV6: try to resolve IPv4 first, try IPv6 if IPv4 fails only + * - LWIP_DNS_ADDRTYPE_IPV6_IPV4: try to resolve IPv6 first, try IPv4 if IPv6 fails only + * - LWIP_DNS_ADDRTYPE_IPV4: try to resolve IPv4 only + * - LWIP_DNS_ADDRTYPE_IPV6: try to resolve IPv6 only + */ +err_t +dns_gethostbyname_addrtype(const char *hostname, ip_addr_t *addr, dns_found_callback found, + void *callback_arg, u8_t dns_addrtype) +{ + size_t hostnamelen; +#if LWIP_DNS_SUPPORT_MDNS_QUERIES + u8_t is_mdns; +#endif + /* not initialized or no valid server yet, or invalid addr pointer + * or invalid hostname or invalid hostname length */ + if ((addr == NULL) || + (!hostname) || (!hostname[0])) { + return ERR_ARG; + } +#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) == 0) + if (dns_pcbs[0] == NULL) { + return ERR_ARG; + } +#endif + hostnamelen = strlen(hostname); + if (hostname[hostnamelen - 1] == '.') { + hostnamelen--; + } + if (hostnamelen >= DNS_MAX_NAME_LENGTH) { + LWIP_DEBUGF(DNS_DEBUG, ("dns_gethostbyname: name too long to resolve")); + return ERR_ARG; + } + + +#if LWIP_HAVE_LOOPIF + if (strcmp(hostname, "localhost") == 0) { + ip_addr_set_loopback(LWIP_DNS_ADDRTYPE_IS_IPV6(dns_addrtype), addr); + return ERR_OK; + } +#endif /* LWIP_HAVE_LOOPIF */ + + /* host name already in octet notation? set ip addr and return ERR_OK */ + if (ipaddr_aton(hostname, addr)) { +#if LWIP_IPV4 && LWIP_IPV6 + if ((IP_IS_V6(addr) && (dns_addrtype != LWIP_DNS_ADDRTYPE_IPV4)) || + (IP_IS_V4(addr) && (dns_addrtype != LWIP_DNS_ADDRTYPE_IPV6))) +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + { + return ERR_OK; + } + } + /* already have this address cached? */ + if (dns_lookup(hostname, hostnamelen, addr LWIP_DNS_ADDRTYPE_ARG(dns_addrtype)) == ERR_OK) { + return ERR_OK; + } +#if LWIP_IPV4 && LWIP_IPV6 + if ((dns_addrtype == LWIP_DNS_ADDRTYPE_IPV4_IPV6) || (dns_addrtype == LWIP_DNS_ADDRTYPE_IPV6_IPV4)) { + /* fallback to 2nd IP type and try again to lookup */ + u8_t fallback; + if (dns_addrtype == LWIP_DNS_ADDRTYPE_IPV4_IPV6) { + fallback = LWIP_DNS_ADDRTYPE_IPV6; + } else { + fallback = LWIP_DNS_ADDRTYPE_IPV4; + } + if (dns_lookup(hostname, hostnamelen, addr LWIP_DNS_ADDRTYPE_ARG(fallback)) == ERR_OK) { + return ERR_OK; + } + } +#else /* LWIP_IPV4 && LWIP_IPV6 */ + LWIP_UNUSED_ARG(dns_addrtype); +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + +#if LWIP_DNS_SUPPORT_MDNS_QUERIES + if (strstr(hostname, ".local") == &hostname[hostnamelen] - 6) { + is_mdns = 1; + } else { + is_mdns = 0; + } + + if (!is_mdns) +#endif /* LWIP_DNS_SUPPORT_MDNS_QUERIES */ + { + /* prevent calling found callback if no server is set, return error instead */ + if (ip_addr_isany_val(dns_servers[0])) { + return ERR_VAL; + } + } + + /* queue query with specified callback */ + return dns_enqueue(hostname, hostnamelen, found, callback_arg LWIP_DNS_ADDRTYPE_ARG(dns_addrtype) + LWIP_DNS_ISMDNS_ARG(is_mdns)); +} + +#endif /* LWIP_DNS */ diff --git a/middleware/lwip/src/core/inet_chksum.c b/middleware/lwip/src/core/inet_chksum.c new file mode 100644 index 0000000..6a343ed --- /dev/null +++ b/middleware/lwip/src/core/inet_chksum.c @@ -0,0 +1,608 @@ +/** + * @file + * Internet checksum functions. + * + * These are some reference implementations of the checksum algorithm, with the + * aim of being simple, correct and fully portable. Checksumming is the + * first thing you would want to optimize for your platform. If you create + * your own version, link it in and in your cc.h put: + * + * \#define LWIP_CHKSUM your_checksum_routine + * + * Or you can select from the implementations below by defining + * LWIP_CHKSUM_ALGORITHM to 1, 2 or 3. + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#include "lwip/inet_chksum.h" +#include "lwip/def.h" +#include "lwip/ip_addr.h" + +#include + +#ifndef LWIP_CHKSUM +# define LWIP_CHKSUM lwip_standard_chksum +# ifndef LWIP_CHKSUM_ALGORITHM +# define LWIP_CHKSUM_ALGORITHM 2 +# endif +u16_t lwip_standard_chksum(const void *dataptr, int len); +#endif +/* If none set: */ +#ifndef LWIP_CHKSUM_ALGORITHM +# define LWIP_CHKSUM_ALGORITHM 0 +#endif + +#if (LWIP_CHKSUM_ALGORITHM == 1) /* Version #1 */ +/** + * lwip checksum + * + * @param dataptr points to start of data to be summed at any boundary + * @param len length of data to be summed + * @return host order (!) lwip checksum (non-inverted Internet sum) + * + * @note accumulator size limits summable length to 64k + * @note host endianness is irrelevant (p3 RFC1071) + */ +u16_t +lwip_standard_chksum(const void *dataptr, int len) +{ + u32_t acc; + u16_t src; + const u8_t *octetptr; + + acc = 0; + /* dataptr may be at odd or even addresses */ + octetptr = (const u8_t *)dataptr; + while (len > 1) { + /* declare first octet as most significant + thus assume network order, ignoring host order */ + src = (*octetptr) << 8; + octetptr++; + /* declare second octet as least significant */ + src |= (*octetptr); + octetptr++; + acc += src; + len -= 2; + } + if (len > 0) { + /* accumulate remaining octet */ + src = (*octetptr) << 8; + acc += src; + } + /* add deferred carry bits */ + acc = (acc >> 16) + (acc & 0x0000ffffUL); + if ((acc & 0xffff0000UL) != 0) { + acc = (acc >> 16) + (acc & 0x0000ffffUL); + } + /* This maybe a little confusing: reorder sum using lwip_htons() + instead of lwip_ntohs() since it has a little less call overhead. + The caller must invert bits for Internet sum ! */ + return lwip_htons((u16_t)acc); +} +#endif + +#if (LWIP_CHKSUM_ALGORITHM == 2) /* Alternative version #2 */ +/* + * Curt McDowell + * Broadcom Corp. + * csm@broadcom.com + * + * IP checksum two bytes at a time with support for + * unaligned buffer. + * Works for len up to and including 0x20000. + * by Curt McDowell, Broadcom Corp. 12/08/2005 + * + * @param dataptr points to start of data to be summed at any boundary + * @param len length of data to be summed + * @return host order (!) lwip checksum (non-inverted Internet sum) + */ +u16_t +lwip_standard_chksum(const void *dataptr, int len) +{ + const u8_t *pb = (const u8_t *)dataptr; + const u16_t *ps; + u16_t t = 0; + u32_t sum = 0; + int odd = ((mem_ptr_t)pb & 1); + + /* Get aligned to u16_t */ + if (odd && len > 0) { + ((u8_t *)&t)[1] = *pb++; + len--; + } + + /* Add the bulk of the data */ + ps = (const u16_t *)(const void *)pb; + while (len > 1) { + sum += *ps++; + len -= 2; + } + + /* Consume left-over byte, if any */ + if (len > 0) { + ((u8_t *)&t)[0] = *(const u8_t *)ps; + } + + /* Add end bytes */ + sum += t; + + /* Fold 32-bit sum to 16 bits + calling this twice is probably faster than if statements... */ + sum = FOLD_U32T(sum); + sum = FOLD_U32T(sum); + + /* Swap if alignment was odd */ + if (odd) { + sum = SWAP_BYTES_IN_WORD(sum); + } + + return (u16_t)sum; +} +#endif + +#if (LWIP_CHKSUM_ALGORITHM == 3) /* Alternative version #3 */ +/** + * An optimized checksum routine. Basically, it uses loop-unrolling on + * the checksum loop, treating the head and tail bytes specially, whereas + * the inner loop acts on 8 bytes at a time. + * + * @arg start of buffer to be checksummed. May be an odd byte address. + * @len number of bytes in the buffer to be checksummed. + * @return host order (!) lwip checksum (non-inverted Internet sum) + * + * by Curt McDowell, Broadcom Corp. December 8th, 2005 + */ +u16_t +lwip_standard_chksum(const void *dataptr, int len) +{ + const u8_t *pb = (const u8_t *)dataptr; + const u16_t *ps; + u16_t t = 0; + const u32_t *pl; + u32_t sum = 0, tmp; + /* starts at odd byte address? */ + int odd = ((mem_ptr_t)pb & 1); + + if (odd && len > 0) { + ((u8_t *)&t)[1] = *pb++; + len--; + } + + ps = (const u16_t *)(const void *)pb; + + if (((mem_ptr_t)ps & 3) && len > 1) { + sum += *ps++; + len -= 2; + } + + pl = (const u32_t *)(const void *)ps; + + while (len > 7) { + tmp = sum + *pl++; /* ping */ + if (tmp < sum) { + tmp++; /* add back carry */ + } + + sum = tmp + *pl++; /* pong */ + if (sum < tmp) { + sum++; /* add back carry */ + } + + len -= 8; + } + + /* make room in upper bits */ + sum = FOLD_U32T(sum); + + ps = (const u16_t *)pl; + + /* 16-bit aligned word remaining? */ + while (len > 1) { + sum += *ps++; + len -= 2; + } + + /* dangling tail byte remaining? */ + if (len > 0) { /* include odd byte */ + ((u8_t *)&t)[0] = *(const u8_t *)ps; + } + + sum += t; /* add end bytes */ + + /* Fold 32-bit sum to 16 bits + calling this twice is probably faster than if statements... */ + sum = FOLD_U32T(sum); + sum = FOLD_U32T(sum); + + if (odd) { + sum = SWAP_BYTES_IN_WORD(sum); + } + + return (u16_t)sum; +} +#endif + +/** Parts of the pseudo checksum which are common to IPv4 and IPv6 */ +static u16_t +inet_cksum_pseudo_base(struct pbuf *p, u8_t proto, u16_t proto_len, u32_t acc) +{ + struct pbuf *q; + int swapped = 0; + + /* iterate through all pbuf in chain */ + for (q = p; q != NULL; q = q->next) { + LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): checksumming pbuf %p (has next %p) \n", + (void *)q, (void *)q->next)); + acc += LWIP_CHKSUM(q->payload, q->len); + /*LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): unwrapped lwip_chksum()=%"X32_F" \n", acc));*/ + /* just executing this next line is probably faster that the if statement needed + to check whether we really need to execute it, and does no harm */ + acc = FOLD_U32T(acc); + if (q->len % 2 != 0) { + swapped = !swapped; + acc = SWAP_BYTES_IN_WORD(acc); + } + /*LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): wrapped lwip_chksum()=%"X32_F" \n", acc));*/ + } + + if (swapped) { + acc = SWAP_BYTES_IN_WORD(acc); + } + + acc += (u32_t)lwip_htons((u16_t)proto); + acc += (u32_t)lwip_htons(proto_len); + + /* Fold 32-bit sum to 16 bits + calling this twice is probably faster than if statements... */ + acc = FOLD_U32T(acc); + acc = FOLD_U32T(acc); + LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): pbuf chain lwip_chksum()=%"X32_F"\n", acc)); + return (u16_t)~(acc & 0xffffUL); +} + +#if LWIP_IPV4 +/* inet_chksum_pseudo: + * + * Calculates the IPv4 pseudo Internet checksum used by TCP and UDP for a pbuf chain. + * IP addresses are expected to be in network byte order. + * + * @param p chain of pbufs over that a checksum should be calculated (ip data part) + * @param src source ip address (used for checksum of pseudo header) + * @param dst destination ip address (used for checksum of pseudo header) + * @param proto ip protocol (used for checksum of pseudo header) + * @param proto_len length of the ip data part (used for checksum of pseudo header) + * @return checksum (as u16_t) to be saved directly in the protocol header + */ +u16_t +inet_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, + const ip4_addr_t *src, const ip4_addr_t *dest) +{ + u32_t acc; + u32_t addr; + + addr = ip4_addr_get_u32(src); + acc = (addr & 0xffffUL); + acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); + addr = ip4_addr_get_u32(dest); + acc = (u32_t)(acc + (addr & 0xffffUL)); + acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); + /* fold down to 16 bits */ + acc = FOLD_U32T(acc); + acc = FOLD_U32T(acc); + + return inet_cksum_pseudo_base(p, proto, proto_len, acc); +} +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 +/** + * Calculates the checksum with IPv6 pseudo header used by TCP and UDP for a pbuf chain. + * IPv6 addresses are expected to be in network byte order. + * + * @param p chain of pbufs over that a checksum should be calculated (ip data part) + * @param proto ipv6 protocol/next header (used for checksum of pseudo header) + * @param proto_len length of the ipv6 payload (used for checksum of pseudo header) + * @param src source ipv6 address (used for checksum of pseudo header) + * @param dest destination ipv6 address (used for checksum of pseudo header) + * @return checksum (as u16_t) to be saved directly in the protocol header + */ +u16_t +ip6_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, + const ip6_addr_t *src, const ip6_addr_t *dest) +{ + u32_t acc = 0; + u32_t addr; + u8_t addr_part; + + for (addr_part = 0; addr_part < 4; addr_part++) { + addr = src->addr[addr_part]; + acc = (u32_t)(acc + (addr & 0xffffUL)); + acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); + addr = dest->addr[addr_part]; + acc = (u32_t)(acc + (addr & 0xffffUL)); + acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); + } + /* fold down to 16 bits */ + acc = FOLD_U32T(acc); + acc = FOLD_U32T(acc); + + return inet_cksum_pseudo_base(p, proto, proto_len, acc); +} +#endif /* LWIP_IPV6 */ + +/* ip_chksum_pseudo: + * + * Calculates the IPv4 or IPv6 pseudo Internet checksum used by TCP and UDP for a pbuf chain. + * IP addresses are expected to be in network byte order. + * + * @param p chain of pbufs over that a checksum should be calculated (ip data part) + * @param src source ip address (used for checksum of pseudo header) + * @param dst destination ip address (used for checksum of pseudo header) + * @param proto ip protocol (used for checksum of pseudo header) + * @param proto_len length of the ip data part (used for checksum of pseudo header) + * @return checksum (as u16_t) to be saved directly in the protocol header + */ +u16_t +ip_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, + const ip_addr_t *src, const ip_addr_t *dest) +{ +#if LWIP_IPV6 + if (IP_IS_V6(dest)) { + return ip6_chksum_pseudo(p, proto, proto_len, ip_2_ip6(src), ip_2_ip6(dest)); + } +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 && LWIP_IPV6 + else +#endif /* LWIP_IPV4 && LWIP_IPV6 */ +#if LWIP_IPV4 + { + return inet_chksum_pseudo(p, proto, proto_len, ip_2_ip4(src), ip_2_ip4(dest)); + } +#endif /* LWIP_IPV4 */ +} + +/** Parts of the pseudo checksum which are common to IPv4 and IPv6 */ +static u16_t +inet_cksum_pseudo_partial_base(struct pbuf *p, u8_t proto, u16_t proto_len, + u16_t chksum_len, u32_t acc) +{ + struct pbuf *q; + int swapped = 0; + u16_t chklen; + + /* iterate through all pbuf in chain */ + for (q = p; (q != NULL) && (chksum_len > 0); q = q->next) { + LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): checksumming pbuf %p (has next %p) \n", + (void *)q, (void *)q->next)); + chklen = q->len; + if (chklen > chksum_len) { + chklen = chksum_len; + } + acc += LWIP_CHKSUM(q->payload, chklen); + chksum_len = (u16_t)(chksum_len - chklen); + LWIP_ASSERT("delete me", chksum_len < 0x7fff); + /*LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): unwrapped lwip_chksum()=%"X32_F" \n", acc));*/ + /* fold the upper bit down */ + acc = FOLD_U32T(acc); + if (q->len % 2 != 0) { + swapped = !swapped; + acc = SWAP_BYTES_IN_WORD(acc); + } + /*LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): wrapped lwip_chksum()=%"X32_F" \n", acc));*/ + } + + if (swapped) { + acc = SWAP_BYTES_IN_WORD(acc); + } + + acc += (u32_t)lwip_htons((u16_t)proto); + acc += (u32_t)lwip_htons(proto_len); + + /* Fold 32-bit sum to 16 bits + calling this twice is probably faster than if statements... */ + acc = FOLD_U32T(acc); + acc = FOLD_U32T(acc); + LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): pbuf chain lwip_chksum()=%"X32_F"\n", acc)); + return (u16_t)~(acc & 0xffffUL); +} + +#if LWIP_IPV4 +/* inet_chksum_pseudo_partial: + * + * Calculates the IPv4 pseudo Internet checksum used by TCP and UDP for a pbuf chain. + * IP addresses are expected to be in network byte order. + * + * @param p chain of pbufs over that a checksum should be calculated (ip data part) + * @param src source ip address (used for checksum of pseudo header) + * @param dst destination ip address (used for checksum of pseudo header) + * @param proto ip protocol (used for checksum of pseudo header) + * @param proto_len length of the ip data part (used for checksum of pseudo header) + * @return checksum (as u16_t) to be saved directly in the protocol header + */ +u16_t +inet_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, + u16_t chksum_len, const ip4_addr_t *src, const ip4_addr_t *dest) +{ + u32_t acc; + u32_t addr; + + addr = ip4_addr_get_u32(src); + acc = (addr & 0xffffUL); + acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); + addr = ip4_addr_get_u32(dest); + acc = (u32_t)(acc + (addr & 0xffffUL)); + acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); + /* fold down to 16 bits */ + acc = FOLD_U32T(acc); + acc = FOLD_U32T(acc); + + return inet_cksum_pseudo_partial_base(p, proto, proto_len, chksum_len, acc); +} +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 +/** + * Calculates the checksum with IPv6 pseudo header used by TCP and UDP for a pbuf chain. + * IPv6 addresses are expected to be in network byte order. Will only compute for a + * portion of the payload. + * + * @param p chain of pbufs over that a checksum should be calculated (ip data part) + * @param proto ipv6 protocol/next header (used for checksum of pseudo header) + * @param proto_len length of the ipv6 payload (used for checksum of pseudo header) + * @param chksum_len number of payload bytes used to compute chksum + * @param src source ipv6 address (used for checksum of pseudo header) + * @param dest destination ipv6 address (used for checksum of pseudo header) + * @return checksum (as u16_t) to be saved directly in the protocol header + */ +u16_t +ip6_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, + u16_t chksum_len, const ip6_addr_t *src, const ip6_addr_t *dest) +{ + u32_t acc = 0; + u32_t addr; + u8_t addr_part; + + for (addr_part = 0; addr_part < 4; addr_part++) { + addr = src->addr[addr_part]; + acc = (u32_t)(acc + (addr & 0xffffUL)); + acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); + addr = dest->addr[addr_part]; + acc = (u32_t)(acc + (addr & 0xffffUL)); + acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); + } + /* fold down to 16 bits */ + acc = FOLD_U32T(acc); + acc = FOLD_U32T(acc); + + return inet_cksum_pseudo_partial_base(p, proto, proto_len, chksum_len, acc); +} +#endif /* LWIP_IPV6 */ + +/* ip_chksum_pseudo_partial: + * + * Calculates the IPv4 or IPv6 pseudo Internet checksum used by TCP and UDP for a pbuf chain. + * + * @param p chain of pbufs over that a checksum should be calculated (ip data part) + * @param src source ip address (used for checksum of pseudo header) + * @param dst destination ip address (used for checksum of pseudo header) + * @param proto ip protocol (used for checksum of pseudo header) + * @param proto_len length of the ip data part (used for checksum of pseudo header) + * @return checksum (as u16_t) to be saved directly in the protocol header + */ +u16_t +ip_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, + u16_t chksum_len, const ip_addr_t *src, const ip_addr_t *dest) +{ +#if LWIP_IPV6 + if (IP_IS_V6(dest)) { + return ip6_chksum_pseudo_partial(p, proto, proto_len, chksum_len, ip_2_ip6(src), ip_2_ip6(dest)); + } +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 && LWIP_IPV6 + else +#endif /* LWIP_IPV4 && LWIP_IPV6 */ +#if LWIP_IPV4 + { + return inet_chksum_pseudo_partial(p, proto, proto_len, chksum_len, ip_2_ip4(src), ip_2_ip4(dest)); + } +#endif /* LWIP_IPV4 */ +} + +/* inet_chksum: + * + * Calculates the Internet checksum over a portion of memory. Used primarily for IP + * and ICMP. + * + * @param dataptr start of the buffer to calculate the checksum (no alignment needed) + * @param len length of the buffer to calculate the checksum + * @return checksum (as u16_t) to be saved directly in the protocol header + */ + +u16_t +inet_chksum(const void *dataptr, u16_t len) +{ + return (u16_t)~(unsigned int)LWIP_CHKSUM(dataptr, len); +} + +/** + * Calculate a checksum over a chain of pbufs (without pseudo-header, much like + * inet_chksum only pbufs are used). + * + * @param p pbuf chain over that the checksum should be calculated + * @return checksum (as u16_t) to be saved directly in the protocol header + */ +u16_t +inet_chksum_pbuf(struct pbuf *p) +{ + u32_t acc; + struct pbuf *q; + int swapped = 0; + + acc = 0; + for (q = p; q != NULL; q = q->next) { + acc += LWIP_CHKSUM(q->payload, q->len); + acc = FOLD_U32T(acc); + if (q->len % 2 != 0) { + swapped = !swapped; + acc = SWAP_BYTES_IN_WORD(acc); + } + } + + if (swapped) { + acc = SWAP_BYTES_IN_WORD(acc); + } + return (u16_t)~(acc & 0xffffUL); +} + +/* These are some implementations for LWIP_CHKSUM_COPY, which copies data + * like MEMCPY but generates a checksum at the same time. Since this is a + * performance-sensitive function, you might want to create your own version + * in assembly targeted at your hardware by defining it in lwipopts.h: + * #define LWIP_CHKSUM_COPY(dst, src, len) your_chksum_copy(dst, src, len) + */ + +#if (LWIP_CHKSUM_COPY_ALGORITHM == 1) /* Version #1 */ +/** Safe but slow: first call MEMCPY, then call LWIP_CHKSUM. + * For architectures with big caches, data might still be in cache when + * generating the checksum after copying. + */ +u16_t +lwip_chksum_copy(void *dst, const void *src, u16_t len) +{ + MEMCPY(dst, src, len); + return LWIP_CHKSUM(dst, len); +} +#endif /* (LWIP_CHKSUM_COPY_ALGORITHM == 1) */ diff --git a/middleware/lwip/src/core/init.c b/middleware/lwip/src/core/init.c new file mode 100644 index 0000000..02d1faa --- /dev/null +++ b/middleware/lwip/src/core/init.c @@ -0,0 +1,389 @@ +/** + * @file + * Modules initialization + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + */ + +#include "lwip/opt.h" + +#include "lwip/init.h" +#include "lwip/stats.h" +#include "lwip/sys.h" +#include "lwip/mem.h" +#include "lwip/memp.h" +#include "lwip/pbuf.h" +#include "lwip/netif.h" +#include "lwip/sockets.h" +#include "lwip/ip.h" +#include "lwip/raw.h" +#include "lwip/udp.h" +#include "lwip/priv/tcp_priv.h" +#include "lwip/igmp.h" +#include "lwip/dns.h" +#include "lwip/timeouts.h" +#include "lwip/etharp.h" +#include "lwip/ip6.h" +#include "lwip/nd6.h" +#include "lwip/mld6.h" +#include "lwip/api.h" + +#include "netif/ppp/ppp_opts.h" +#include "netif/ppp/ppp_impl.h" + +#ifndef LWIP_SKIP_PACKING_CHECK + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct packed_struct_test { + PACK_STRUCT_FLD_8(u8_t dummy1); + PACK_STRUCT_FIELD(u32_t dummy2); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +#define PACKED_STRUCT_TEST_EXPECTED_SIZE 5 + +#endif + +/* Compile-time sanity checks for configuration errors. + * These can be done independently of LWIP_DEBUG, without penalty. + */ +#ifndef BYTE_ORDER +#error "BYTE_ORDER is not defined, you have to define it in your cc.h" +#endif +#if (!IP_SOF_BROADCAST && IP_SOF_BROADCAST_RECV) +#error "If you want to use broadcast filter per pcb on recv operations, you have to define IP_SOF_BROADCAST=1 in your lwipopts.h" +#endif +#if (!LWIP_UDP && LWIP_UDPLITE) +#error "If you want to use UDP Lite, you have to define LWIP_UDP=1 in your lwipopts.h" +#endif +#if (!LWIP_UDP && LWIP_DHCP) +#error "If you want to use DHCP, you have to define LWIP_UDP=1 in your lwipopts.h" +#endif +#if (!LWIP_UDP && !LWIP_RAW && LWIP_MULTICAST_TX_OPTIONS) +#error "If you want to use LWIP_MULTICAST_TX_OPTIONS, you have to define LWIP_UDP=1 and/or LWIP_RAW=1 in your lwipopts.h" +#endif +#if (!LWIP_UDP && LWIP_DNS) +#error "If you want to use DNS, you have to define LWIP_UDP=1 in your lwipopts.h" +#endif +#if !MEMP_MEM_MALLOC /* MEMP_NUM_* checks are disabled when not using the pool allocator */ +#if (LWIP_ARP && ARP_QUEUEING && (MEMP_NUM_ARP_QUEUE<=0)) +#error "If you want to use ARP Queueing, you have to define MEMP_NUM_ARP_QUEUE>=1 in your lwipopts.h" +#endif +#if (LWIP_RAW && (MEMP_NUM_RAW_PCB<=0)) +#error "If you want to use RAW, you have to define MEMP_NUM_RAW_PCB>=1 in your lwipopts.h" +#endif +#if (LWIP_UDP && (MEMP_NUM_UDP_PCB<=0)) +#error "If you want to use UDP, you have to define MEMP_NUM_UDP_PCB>=1 in your lwipopts.h" +#endif +#if (LWIP_TCP && (MEMP_NUM_TCP_PCB<=0)) +#error "If you want to use TCP, you have to define MEMP_NUM_TCP_PCB>=1 in your lwipopts.h" +#endif +#if (LWIP_IGMP && (MEMP_NUM_IGMP_GROUP<=1)) +#error "If you want to use IGMP, you have to define MEMP_NUM_IGMP_GROUP>1 in your lwipopts.h" +#endif +#if (LWIP_IGMP && !LWIP_MULTICAST_TX_OPTIONS) +#error "If you want to use IGMP, you have to define LWIP_MULTICAST_TX_OPTIONS==1 in your lwipopts.h" +#endif +#if (LWIP_IGMP && !LWIP_IPV4) +#error "IGMP needs LWIP_IPV4 enabled in your lwipopts.h" +#endif +#if ((LWIP_NETCONN || LWIP_SOCKET) && (MEMP_NUM_TCPIP_MSG_API<=0)) +#error "If you want to use Sequential API, you have to define MEMP_NUM_TCPIP_MSG_API>=1 in your lwipopts.h" +#endif +/* There must be sufficient timeouts, taking into account requirements of the subsystems. */ +#if LWIP_TIMERS && (MEMP_NUM_SYS_TIMEOUT < LWIP_NUM_SYS_TIMEOUT_INTERNAL) +#error "MEMP_NUM_SYS_TIMEOUT is too low to accommodate all required timeouts" +#endif +#if (IP_REASSEMBLY && (MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS)) +#error "MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS doesn't make sense since each struct ip_reassdata must hold 2 pbufs at least!" +#endif +#endif /* !MEMP_MEM_MALLOC */ +#if LWIP_WND_SCALE +#if (LWIP_TCP && (TCP_WND > 0xffffffff)) +#error "If you want to use TCP, TCP_WND must fit in an u32_t, so, you have to reduce it in your lwipopts.h" +#endif +#if (LWIP_TCP && (TCP_RCV_SCALE > 14)) +#error "The maximum valid window scale value is 14!" +#endif +#if (LWIP_TCP && (TCP_WND > (0xFFFFU << TCP_RCV_SCALE))) +#error "TCP_WND is bigger than the configured LWIP_WND_SCALE allows!" +#endif +#if (LWIP_TCP && ((TCP_WND >> TCP_RCV_SCALE) == 0)) +#error "TCP_WND is too small for the configured LWIP_WND_SCALE (results in zero window)!" +#endif +#else /* LWIP_WND_SCALE */ +#if (LWIP_TCP && (TCP_WND > 0xffff)) +#error "If you want to use TCP, TCP_WND must fit in an u16_t, so, you have to reduce it in your lwipopts.h (or enable window scaling)" +#endif +#endif /* LWIP_WND_SCALE */ +#if (LWIP_TCP && (TCP_SND_QUEUELEN > 0xffff)) +#error "If you want to use TCP, TCP_SND_QUEUELEN must fit in an u16_t, so, you have to reduce it in your lwipopts.h" +#endif +#if (LWIP_TCP && (TCP_SND_QUEUELEN < 2)) +#error "TCP_SND_QUEUELEN must be at least 2 for no-copy TCP writes to work" +#endif +#if (LWIP_TCP && ((TCP_MAXRTX > 12) || (TCP_SYNMAXRTX > 12))) +#error "If you want to use TCP, TCP_MAXRTX and TCP_SYNMAXRTX must less or equal to 12 (due to tcp_backoff table), so, you have to reduce them in your lwipopts.h" +#endif +#if (LWIP_TCP && TCP_LISTEN_BACKLOG && ((TCP_DEFAULT_LISTEN_BACKLOG < 0) || (TCP_DEFAULT_LISTEN_BACKLOG > 0xff))) +#error "If you want to use TCP backlog, TCP_DEFAULT_LISTEN_BACKLOG must fit into an u8_t" +#endif +#if (LWIP_TCP && LWIP_TCP_SACK_OUT && !TCP_QUEUE_OOSEQ) +#error "To use LWIP_TCP_SACK_OUT, TCP_QUEUE_OOSEQ needs to be enabled" +#endif +#if (LWIP_TCP && LWIP_TCP_SACK_OUT && (LWIP_TCP_MAX_SACK_NUM < 1)) +#error "LWIP_TCP_MAX_SACK_NUM must be greater than 0" +#endif +#if (LWIP_NETIF_API && (NO_SYS==1)) +#error "If you want to use NETIF API, you have to define NO_SYS=0 in your lwipopts.h" +#endif +#if ((LWIP_SOCKET || LWIP_NETCONN) && (NO_SYS==1)) +#error "If you want to use Sequential API, you have to define NO_SYS=0 in your lwipopts.h" +#endif +#if (LWIP_PPP_API && (NO_SYS==1)) +#error "If you want to use PPP API, you have to define NO_SYS=0 in your lwipopts.h" +#endif +#if (LWIP_PPP_API && (PPP_SUPPORT==0)) +#error "If you want to use PPP API, you have to enable PPP_SUPPORT in your lwipopts.h" +#endif +#if (((!LWIP_DHCP) || (!LWIP_AUTOIP)) && LWIP_DHCP_AUTOIP_COOP) +#error "If you want to use DHCP/AUTOIP cooperation mode, you have to define LWIP_DHCP=1 and LWIP_AUTOIP=1 in your lwipopts.h" +#endif +#if (((!LWIP_DHCP) || (!LWIP_ARP) || (!LWIP_ACD)) && LWIP_DHCP_DOES_ACD_CHECK) +#error "If you want to use DHCP ACD checking, you have to define LWIP_DHCP=1, LWIP_ARP=1 and LWIP_ACD=1 in your lwipopts.h" +#endif +#if (!LWIP_ARP && LWIP_AUTOIP) +#error "If you want to use AUTOIP, you have to define LWIP_ARP=1 in your lwipopts.h" +#endif +#if (LWIP_TCP && ((LWIP_EVENT_API && LWIP_CALLBACK_API) || (!LWIP_EVENT_API && !LWIP_CALLBACK_API))) +#error "One and exactly one of LWIP_EVENT_API and LWIP_CALLBACK_API has to be enabled in your lwipopts.h" +#endif +#if (LWIP_ALTCP && LWIP_EVENT_API) +#error "The application layered tcp API does not work with LWIP_EVENT_API" +#endif +#if (MEM_LIBC_MALLOC && MEM_USE_POOLS) +#error "MEM_LIBC_MALLOC and MEM_USE_POOLS may not both be simultaneously enabled in your lwipopts.h" +#endif +#if (MEM_USE_POOLS && !MEMP_USE_CUSTOM_POOLS) +#error "MEM_USE_POOLS requires custom pools (MEMP_USE_CUSTOM_POOLS) to be enabled in your lwipopts.h" +#endif +#if (PBUF_POOL_BUFSIZE <= MEM_ALIGNMENT) +#error "PBUF_POOL_BUFSIZE must be greater than MEM_ALIGNMENT or the offset may take the full first pbuf" +#endif +#if (DNS_LOCAL_HOSTLIST && !DNS_LOCAL_HOSTLIST_IS_DYNAMIC && !(defined(DNS_LOCAL_HOSTLIST_INIT))) +#error "you have to define define DNS_LOCAL_HOSTLIST_INIT {{'host1', 0x123}, {'host2', 0x234}} to initialize DNS_LOCAL_HOSTLIST" +#endif +#if PPP_SUPPORT && !PPPOS_SUPPORT && !PPPOE_SUPPORT && !PPPOL2TP_SUPPORT +#error "PPP_SUPPORT needs at least one of PPPOS_SUPPORT, PPPOE_SUPPORT or PPPOL2TP_SUPPORT turned on" +#endif +#if PPP_SUPPORT && !PPP_IPV4_SUPPORT && !PPP_IPV6_SUPPORT +#error "PPP_SUPPORT needs PPP_IPV4_SUPPORT and/or PPP_IPV6_SUPPORT turned on" +#endif +#if PPP_SUPPORT && PPP_IPV4_SUPPORT && !LWIP_IPV4 +#error "PPP_IPV4_SUPPORT needs LWIP_IPV4 turned on" +#endif +#if PPP_SUPPORT && PPP_IPV6_SUPPORT && !LWIP_IPV6 +#error "PPP_IPV6_SUPPORT needs LWIP_IPV6 turned on" +#endif +#if PPP_SUPPORT && CCP_SUPPORT && !MPPE_SUPPORT +#error "CCP_SUPPORT needs MPPE_SUPPORT turned on" +#endif +#if !LWIP_ETHERNET && (LWIP_ARP || PPPOE_SUPPORT) +#error "LWIP_ETHERNET needs to be turned on for LWIP_ARP or PPPOE_SUPPORT" +#endif +#if LWIP_TCPIP_CORE_LOCKING_INPUT && !LWIP_TCPIP_CORE_LOCKING +#error "When using LWIP_TCPIP_CORE_LOCKING_INPUT, LWIP_TCPIP_CORE_LOCKING must be enabled, too" +#endif +#if LWIP_TCP && LWIP_NETIF_TX_SINGLE_PBUF && !TCP_OVERSIZE +#error "LWIP_NETIF_TX_SINGLE_PBUF needs TCP_OVERSIZE enabled to create single-pbuf TCP packets" +#endif +#if LWIP_NETCONN && LWIP_TCP +#if NETCONN_COPY != TCP_WRITE_FLAG_COPY +#error "NETCONN_COPY != TCP_WRITE_FLAG_COPY" +#endif +#if NETCONN_MORE != TCP_WRITE_FLAG_MORE +#error "NETCONN_MORE != TCP_WRITE_FLAG_MORE" +#endif +#endif /* LWIP_NETCONN && LWIP_TCP */ +#if LWIP_NETCONN_FULLDUPLEX && !LWIP_NETCONN_SEM_PER_THREAD +#error "For LWIP_NETCONN_FULLDUPLEX to work, LWIP_NETCONN_SEM_PER_THREAD is required" +#endif + + +/* Compile-time checks for deprecated options. + */ +#ifdef MEMP_NUM_TCPIP_MSG +#error "MEMP_NUM_TCPIP_MSG option is deprecated. Remove it from your lwipopts.h." +#endif +#ifdef TCP_REXMIT_DEBUG +#error "TCP_REXMIT_DEBUG option is deprecated. Remove it from your lwipopts.h." +#endif +#ifdef RAW_STATS +#error "RAW_STATS option is deprecated. Remove it from your lwipopts.h." +#endif +#ifdef ETHARP_QUEUE_FIRST +#error "ETHARP_QUEUE_FIRST option is deprecated. Remove it from your lwipopts.h." +#endif +#ifdef ETHARP_ALWAYS_INSERT +#error "ETHARP_ALWAYS_INSERT option is deprecated. Remove it from your lwipopts.h." +#endif +#if !NO_SYS && LWIP_TCPIP_CORE_LOCKING && LWIP_COMPAT_MUTEX && !defined(LWIP_COMPAT_MUTEX_ALLOWED) +#error "LWIP_COMPAT_MUTEX cannot prevent priority inversion. It is recommended to implement priority-aware mutexes. (Define LWIP_COMPAT_MUTEX_ALLOWED to disable this error.)" +#endif + +#ifndef LWIP_DISABLE_TCP_SANITY_CHECKS +#define LWIP_DISABLE_TCP_SANITY_CHECKS 0 +#endif +#ifndef LWIP_DISABLE_MEMP_SANITY_CHECKS +#define LWIP_DISABLE_MEMP_SANITY_CHECKS 0 +#endif + +/* MEMP sanity checks */ +#if MEMP_MEM_MALLOC +#if !LWIP_DISABLE_MEMP_SANITY_CHECKS +#if LWIP_NETCONN || LWIP_SOCKET +#if !MEMP_NUM_NETCONN && LWIP_SOCKET +#error "lwip_sanity_check: WARNING: MEMP_NUM_NETCONN cannot be 0 when using sockets!" +#endif +#else /* MEMP_MEM_MALLOC */ +#if MEMP_NUM_NETCONN > (MEMP_NUM_TCP_PCB+MEMP_NUM_TCP_PCB_LISTEN+MEMP_NUM_UDP_PCB+MEMP_NUM_RAW_PCB) +#error "lwip_sanity_check: WARNING: MEMP_NUM_NETCONN should be less than the sum of MEMP_NUM_{TCP,RAW,UDP}_PCB+MEMP_NUM_TCP_PCB_LISTEN. If you know what you are doing, define LWIP_DISABLE_MEMP_SANITY_CHECKS to 1 to disable this error." +#endif +#endif /* LWIP_NETCONN || LWIP_SOCKET */ +#endif /* !LWIP_DISABLE_MEMP_SANITY_CHECKS */ +#if MEM_USE_POOLS +#error "MEMP_MEM_MALLOC and MEM_USE_POOLS cannot be enabled at the same time" +#endif +#ifdef LWIP_HOOK_MEMP_AVAILABLE +#error "LWIP_HOOK_MEMP_AVAILABLE doesn't make sense with MEMP_MEM_MALLOC" +#endif +#endif /* MEMP_MEM_MALLOC */ + +/* TCP sanity checks */ +#if !LWIP_DISABLE_TCP_SANITY_CHECKS +#if LWIP_TCP +#if !MEMP_MEM_MALLOC && (MEMP_NUM_TCP_SEG < TCP_SND_QUEUELEN) +#error "lwip_sanity_check: WARNING: MEMP_NUM_TCP_SEG should be at least as big as TCP_SND_QUEUELEN. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." +#endif +#if TCP_SND_BUF < (2 * TCP_MSS) +#error "lwip_sanity_check: WARNING: TCP_SND_BUF must be at least as much as (2 * TCP_MSS) for things to work smoothly. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." +#endif +#if TCP_SND_QUEUELEN < (2 * (TCP_SND_BUF / TCP_MSS)) +#error "lwip_sanity_check: WARNING: TCP_SND_QUEUELEN must be at least as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." +#endif +#if TCP_SNDLOWAT >= TCP_SND_BUF +#error "lwip_sanity_check: WARNING: TCP_SNDLOWAT must be less than TCP_SND_BUF. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." +#endif +#if TCP_MSS >= ((16 * 1024) - 1) +#error "lwip_sanity_check: WARNING: TCP_MSS must be <= 16382 to prevent u16_t underflow in TCP_SNDLOWAT calculation!" +#endif +#if TCP_SNDLOWAT >= (0xFFFF - (4 * TCP_MSS)) +#error "lwip_sanity_check: WARNING: TCP_SNDLOWAT must at least be 4*MSS below u16_t overflow!" +#endif +#if TCP_SNDQUEUELOWAT >= TCP_SND_QUEUELEN +#error "lwip_sanity_check: WARNING: TCP_SNDQUEUELOWAT must be less than TCP_SND_QUEUELEN. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." +#endif +#if !MEMP_MEM_MALLOC && PBUF_POOL_SIZE && (PBUF_POOL_BUFSIZE <= (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)) +#error "lwip_sanity_check: WARNING: PBUF_POOL_BUFSIZE does not provide enough space for protocol headers. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." +#endif +#if !MEMP_MEM_MALLOC && PBUF_POOL_SIZE && (TCP_WND > (PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)))) +#error "lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - protocol headers). If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." +#endif +#if TCP_WND < TCP_MSS +#error "lwip_sanity_check: WARNING: TCP_WND is smaller than MSS. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." +#endif +#endif /* LWIP_TCP */ +#endif /* !LWIP_DISABLE_TCP_SANITY_CHECKS */ + +/** + * @ingroup lwip_nosys + * Initialize all modules. + * Use this in NO_SYS mode. Use tcpip_init() otherwise. + */ +void +lwip_init(void) +{ +#ifndef LWIP_SKIP_CONST_CHECK + int a = 0; +#ifdef LWIP_NOASSERT /* Caused compiler warning. */ + LWIP_UNUSED_ARG(a); +#endif + LWIP_ASSERT("LWIP_CONST_CAST not implemented correctly. Check your lwIP port.", LWIP_CONST_CAST(void *, &a) == &a); +#endif +#ifndef LWIP_SKIP_PACKING_CHECK + LWIP_ASSERT("Struct packing not implemented correctly. Check your lwIP port.", sizeof(struct packed_struct_test) == PACKED_STRUCT_TEST_EXPECTED_SIZE); +#endif + + /* Modules initialization */ + stats_init(); +#if !NO_SYS + sys_init(); +#endif /* !NO_SYS */ + mem_init(); + memp_init(); + pbuf_init(); + netif_init(); +#if LWIP_IPV4 + ip_init(); +#if LWIP_ARP + etharp_init(); +#endif /* LWIP_ARP */ +#endif /* LWIP_IPV4 */ +#if LWIP_RAW + raw_init(); +#endif /* LWIP_RAW */ +#if LWIP_UDP + udp_init(); +#endif /* LWIP_UDP */ +#if LWIP_TCP + tcp_init(); +#endif /* LWIP_TCP */ +#if LWIP_IGMP + igmp_init(); +#endif /* LWIP_IGMP */ +#if LWIP_DNS + dns_init(); +#endif /* LWIP_DNS */ +#if PPP_SUPPORT + ppp_init(); +#endif + +#if LWIP_TIMERS + sys_timeouts_init(); +#endif /* LWIP_TIMERS */ +} diff --git a/middleware/lwip/src/core/ip.c b/middleware/lwip/src/core/ip.c new file mode 100644 index 0000000..18514cf --- /dev/null +++ b/middleware/lwip/src/core/ip.c @@ -0,0 +1,167 @@ +/** + * @file + * Common IPv4 and IPv6 code + * + * @defgroup ip IP + * @ingroup callbackstyle_api + * + * @defgroup ip4 IPv4 + * @ingroup ip + * + * @defgroup ip6 IPv6 + * @ingroup ip + * + * @defgroup ipaddr IP address handling + * @ingroup infrastructure + * + * @defgroup ip4addr IPv4 only + * @ingroup ipaddr + * + * @defgroup ip6addr IPv6 only + * @ingroup ipaddr + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV4 || LWIP_IPV6 + +#include "lwip/ip_addr.h" +#include "lwip/ip.h" + +/** Global data for both IPv4 and IPv6 */ +struct ip_globals ip_data; + +#if LWIP_IPV4 && LWIP_IPV6 + +const ip_addr_t ip_addr_any_type = IPADDR_ANY_TYPE_INIT; + +/** + * @ingroup ipaddr + * Convert numeric IP address (both versions) into ASCII representation. + * returns ptr to static buffer; not reentrant! + * + * @param addr ip address in network order to convert + * @return pointer to a global static (!) buffer that holds the ASCII + * representation of addr + */ +char *ipaddr_ntoa(const ip_addr_t *addr) +{ + if (addr == NULL) { + return NULL; + } + if (IP_IS_V6(addr)) { + return ip6addr_ntoa(ip_2_ip6(addr)); + } else { + return ip4addr_ntoa(ip_2_ip4(addr)); + } +} + +/** + * @ingroup ipaddr + * Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used. + * + * @param addr ip address in network order to convert + * @param buf target buffer where the string is stored + * @param buflen length of buf + * @return either pointer to buf which now holds the ASCII + * representation of addr or NULL if buf was too small + */ +char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen) +{ + if (addr == NULL) { + return NULL; + } + if (IP_IS_V6(addr)) { + return ip6addr_ntoa_r(ip_2_ip6(addr), buf, buflen); + } else { + return ip4addr_ntoa_r(ip_2_ip4(addr), buf, buflen); + } +} + +/** + * @ingroup ipaddr + * Convert IP address string (both versions) to numeric. + * The version is auto-detected from the string. + * + * @param cp IP address string to convert + * @param addr conversion result is stored here + * @return 1 on success, 0 on error + */ +int +ipaddr_aton(const char *cp, ip_addr_t *addr) +{ + if (cp != NULL) { + const char *c; + for (c = cp; *c != 0; c++) { + if (*c == ':') { + /* contains a colon: IPv6 address */ + if (addr) { + IP_SET_TYPE_VAL(*addr, IPADDR_TYPE_V6); + } + return ip6addr_aton(cp, ip_2_ip6(addr)); + } else if (*c == '.') { + /* contains a dot: IPv4 address */ + break; + } + } + /* call ip4addr_aton as fallback or if IPv4 was found */ + if (addr) { + IP_SET_TYPE_VAL(*addr, IPADDR_TYPE_V4); + } + return ip4addr_aton(cp, ip_2_ip4(addr)); + } + return 0; +} + +/** + * @ingroup lwip_nosys + * If both IP versions are enabled, this function can dispatch packets to the correct one. + * Don't call directly, pass to netif_add() and call netif->input(). + */ +err_t +ip_input(struct pbuf *p, struct netif *inp) +{ + if (p != NULL) { + if (IP_HDR_GET_VERSION(p->payload) == 6) { + return ip6_input(p, inp); + } + return ip4_input(p, inp); + } + return ERR_VAL; +} + +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + +#endif /* LWIP_IPV4 || LWIP_IPV6 */ diff --git a/middleware/lwip/src/core/ipv4/acd.c b/middleware/lwip/src/core/ipv4/acd.c new file mode 100644 index 0000000..90e0dec --- /dev/null +++ b/middleware/lwip/src/core/ipv4/acd.c @@ -0,0 +1,528 @@ +/** + * @file + * + * ACD IPv4 Address Conflict Detection + * + * This is an IPv4 address conflict detection implementation for the lwIP TCP/IP + * stack. It aims to be conform to RFC5227. + * + * @defgroup acd ACD + * @ingroup ip4 + * ACD related functions + * USAGE: + * + * define @ref LWIP_ACD 1 in your lwipopts.h + * Options: + * ACD_TMR_INTERVAL msecs, + * I recommend a value of 100. The value must divide 1000 with a remainder almost 0. + * Possible values are 1000, 500, 333, 250, 200, 166, 142, 125, 111, 100 .... + * + * For fixed IP: + * - call acd_start after selecting an IP address. The caller will be informed + * on conflict status via the callback function. + * + * With AUTOIP: + * - will be called from the autoip module. No extra's needed. + * + * With DHCP: + * - enable LWIP_DHCP_DOES_ACD_CHECK. Then it will be called from the dhcp module. + * No extra's needed. + */ + +/* + * + * Copyright (c) 2007 Dominik Spies + * Copyright (c) 2018 Jasper Verschueren + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Jasper Verschueren + * Author: Dominik Spies + */ + +#include "lwip/opt.h" + +/* don't build if not configured for use in lwipopts.h */ +#if LWIP_IPV4 && LWIP_ACD + +#include + +#include "lwip/acd.h" +#include "lwip/prot/acd.h" + +#define ACD_FOREACH(acd, acd_list) for ((acd) = acd_list; (acd) != NULL; (acd) = (acd)->next) + +#define ACD_TICKS_PER_SECOND (1000 / ACD_TMR_INTERVAL) + +/* Define good random function (LWIP_RAND) in lwipopts.h */ +#ifdef LWIP_RAND +#define LWIP_ACD_RAND(netif, acd) LWIP_RAND() +#else /* LWIP_RAND */ +#ifdef LWIP_AUTOIP_RAND +#include "lwip/autoip.h" +#define LWIP_ACD_RAND(netif, acd) LWIP_AUTOIP_RAND(netif) /* for backwards compatibility */ +#else +#define LWIP_ACD_RAND(netif, acd) ((((u32_t)((netif->hwaddr[5]) & 0xff) << 24) | \ + ((u32_t)((netif->hwaddr[3]) & 0xff) << 16) | \ + ((u32_t)((netif->hwaddr[2]) & 0xff) << 8) | \ + ((u32_t)((netif->hwaddr[4]) & 0xff))) + \ + (acd->sent_num)) +#endif /* LWIP_AUTOIP_RAND */ +#endif /* LWIP_RAND */ + + +#define ACD_RANDOM_PROBE_WAIT(netif, acd) (LWIP_ACD_RAND(netif, acd) % \ + (PROBE_WAIT * ACD_TICKS_PER_SECOND)) + +#define ACD_RANDOM_PROBE_INTERVAL(netif, acd) ((LWIP_ACD_RAND(netif, acd) % \ + ((PROBE_MAX - PROBE_MIN) * ACD_TICKS_PER_SECOND)) + \ + (PROBE_MIN * ACD_TICKS_PER_SECOND )) + +/* Function definitions */ +static void acd_restart(struct netif *netif, struct acd *acd); +static void acd_handle_arp_conflict(struct netif *netif, struct acd *acd); +static void acd_put_in_passive_mode(struct netif *netif, struct acd *acd); + +/** + * @ingroup acd + * Add ACD client to the client list and initialize callback function + * + * @param netif network interface on which to start the acd + * client + * @param acd acd module to be added to the list + * @param acd_conflict_callback callback to be called when conflict information + * is available + */ +err_t +acd_add(struct netif *netif, struct acd *acd, + acd_conflict_callback_t acd_conflict_callback) +{ + struct acd *acd2; + + /* Set callback */ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("acd_conflict_callback != NULL", acd_conflict_callback != NULL); + acd->acd_conflict_callback = acd_conflict_callback; + + /* Check if the acd struct is already added */ + for (acd2 = netif->acd_list; acd2 != NULL; acd2 = acd2->next) { + if (acd2 == acd) { + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_add(): acd already added to list\n")); + return ERR_OK; + } + } + + /* add acd struct to the list */ + acd->next = netif->acd_list; + netif->acd_list = acd; + + return ERR_OK; +} + +/** + * @ingroup acd + * Start ACD client + * + * @param netif network interface on which to start the acd client + * @param acd acd module to start + * @param ipaddr ip address to perform acd on + */ +err_t +acd_start(struct netif *netif, struct acd *acd, ip4_addr_t ipaddr) +{ + err_t result = ERR_OK; + + LWIP_UNUSED_ARG(netif); + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_start(netif=%p) %c%c%"U16_F"\n", + (void *)netif, netif->name[0], + netif->name[1], (u16_t)netif->num)); + + /* init probing state */ + acd->sent_num = 0; + acd->lastconflict = 0; + ip4_addr_copy(acd->ipaddr, ipaddr); + acd->state = ACD_STATE_PROBE_WAIT; + + acd->ttw = (u16_t)(ACD_RANDOM_PROBE_WAIT(netif, acd)); + + return result; +} + +/** + * @ingroup acd + * Stop ACD client + * + * @param acd acd module to stop + */ +err_t +acd_stop(struct acd *acd) +{ + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("acd_stop\n")); + + if (acd != NULL) { + acd->state = ACD_STATE_OFF; + } + return ERR_OK; +} + +/** + * @ingroup acd + * Inform the ACD modules when the link goes down + * + * @param netif network interface on which to inform the ACD clients + */ +void +acd_network_changed_link_down(struct netif *netif) +{ + struct acd *acd; + /* loop over the acd's*/ + ACD_FOREACH(acd, netif->acd_list) { + acd_stop(acd); + } +} + +/** + * Has to be called in loop every ACD_TMR_INTERVAL milliseconds + */ +void +acd_tmr(void) +{ + struct netif *netif; + struct acd *acd; + /* loop through netif's */ + NETIF_FOREACH(netif) { + ACD_FOREACH(acd, netif->acd_list) { + if (acd->lastconflict > 0) { + acd->lastconflict--; + } + + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE, + ("acd_tmr() ACD-State: %"U16_F", ttw=%"U16_F"\n", + (u16_t)(acd->state), acd->ttw)); + + if (acd->ttw > 0) { + acd->ttw--; + } + + switch (acd->state) { + case ACD_STATE_PROBE_WAIT: + case ACD_STATE_PROBING: + if (acd->ttw == 0) { + acd->state = ACD_STATE_PROBING; + etharp_acd_probe(netif, &acd->ipaddr); + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE, + ("acd_tmr() PROBING Sent Probe\n")); + acd->sent_num++; + if (acd->sent_num >= PROBE_NUM) { + /* Switch to ANNOUNCE_WAIT: last probe is sent*/ + acd->state = ACD_STATE_ANNOUNCE_WAIT; + + acd->sent_num = 0; + + /* calculate time to wait before announcing */ + acd->ttw = (u16_t)(ANNOUNCE_WAIT * ACD_TICKS_PER_SECOND); + } else { + /* calculate time to wait to next probe */ + acd->ttw = (u16_t)(ACD_RANDOM_PROBE_INTERVAL(netif, acd)); + } + } + break; + + case ACD_STATE_ANNOUNCE_WAIT: + case ACD_STATE_ANNOUNCING: + if (acd->ttw == 0) { + if (acd->sent_num == 0) { + acd->state = ACD_STATE_ANNOUNCING; + + /* reset conflict count to ensure fast re-probing after announcing */ + acd->num_conflicts = 0; + + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_tmr(): changing state to ANNOUNCING: %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + ip4_addr1_16(&acd->ipaddr), ip4_addr2_16(&acd->ipaddr), + ip4_addr3_16(&acd->ipaddr), ip4_addr4_16(&acd->ipaddr))); + } + + etharp_acd_announce(netif, &acd->ipaddr); + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE, + ("acd_tmr() ANNOUNCING Sent Announce\n")); + acd->ttw = ANNOUNCE_INTERVAL * ACD_TICKS_PER_SECOND; + acd->sent_num++; + + if (acd->sent_num >= ANNOUNCE_NUM) { + acd->state = ACD_STATE_ONGOING; + acd->sent_num = 0; + acd->ttw = 0; + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_tmr(): changing state to ONGOING: %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + ip4_addr1_16(&acd->ipaddr), ip4_addr2_16(&acd->ipaddr), + ip4_addr3_16(&acd->ipaddr), ip4_addr4_16(&acd->ipaddr))); + + /* finally, let acd user know that the address is good and can be used */ + acd->acd_conflict_callback(netif, ACD_IP_OK); + } + } + break; + + case ACD_STATE_RATE_LIMIT: + if (acd->ttw == 0) { + /* acd should be stopped because ipaddr isn't valid any more */ + acd_stop(acd); + /* let the acd user (after rate limit interval) know that their is + * a conflict detected. So it can restart the address acquiring + * process.*/ + acd->acd_conflict_callback(netif, ACD_RESTART_CLIENT); + } + break; + + default: + /* nothing to do in other states */ + break; + } + } + } +} + +/** + * Restarts the acd module + * + * The number of conflicts is increased and the upper layer is informed. + */ +static void +acd_restart(struct netif *netif, struct acd *acd) +{ + /* increase conflict counter. */ + acd->num_conflicts++; + + /* Decline the address */ + acd->acd_conflict_callback(netif, ACD_DECLINE); + + /* if we tried more then MAX_CONFLICTS we must limit our rate for + * acquiring and probing addresses. compliant to RFC 5227 Section 2.1.1 */ + if (acd->num_conflicts >= MAX_CONFLICTS) { + acd->state = ACD_STATE_RATE_LIMIT; + acd->ttw = (u16_t)(RATE_LIMIT_INTERVAL * ACD_TICKS_PER_SECOND); + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE | LWIP_DBG_LEVEL_WARNING, + ("acd_restart(): rate limiting initiated. too many conflicts\n")); + } + else { + /* acd should be stopped because ipaddr isn't valid any more */ + acd_stop(acd); + /* let the acd user know right away that their is a conflict detected. + * So it can restart the address acquiring process. */ + acd->acd_conflict_callback(netif, ACD_RESTART_CLIENT); + } +} + +/** + * Handles every incoming ARP Packet, called by etharp_input(). + * + * @param netif network interface to use for acd processing + * @param hdr Incoming ARP packet + */ +void +acd_arp_reply(struct netif *netif, struct etharp_hdr *hdr) +{ + struct acd *acd; + ip4_addr_t sipaddr, dipaddr; + struct eth_addr netifaddr; + SMEMCPY(netifaddr.addr, netif->hwaddr, ETH_HWADDR_LEN); + + /* Copy struct ip4_addr_wordaligned to aligned ip4_addr, to support + * compilers without structure packing (not using structure copy which + * breaks strict-aliasing rules). + */ + IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(&sipaddr, &hdr->sipaddr); + IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(&dipaddr, &hdr->dipaddr); + + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE, ("acd_arp_reply()\n")); + + /* loop over the acd's*/ + ACD_FOREACH(acd, netif->acd_list) { + switch(acd->state) { + case ACD_STATE_OFF: + case ACD_STATE_RATE_LIMIT: + default: + /* do nothing */ + break; + + case ACD_STATE_PROBE_WAIT: + case ACD_STATE_PROBING: + case ACD_STATE_ANNOUNCE_WAIT: + /* RFC 5227 Section 2.1.1: + * from beginning to after ANNOUNCE_WAIT seconds we have a conflict if + * ip.src == ipaddr (someone is already using the address) + * OR + * ip.dst == ipaddr && hw.src != own hwaddr (someone else is probing it) + */ + if ((ip4_addr_eq(&sipaddr, &acd->ipaddr)) || + (ip4_addr_isany_val(sipaddr) && + ip4_addr_eq(&dipaddr, &acd->ipaddr) && + !eth_addr_eq(&netifaddr, &hdr->shwaddr))) { + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE | LWIP_DBG_LEVEL_WARNING, + ("acd_arp_reply(): Probe Conflict detected\n")); + acd_restart(netif, acd); + } + break; + + case ACD_STATE_ANNOUNCING: + case ACD_STATE_ONGOING: + case ACD_STATE_PASSIVE_ONGOING: + /* RFC 5227 Section 2.4: + * in any state we have a conflict if + * ip.src == ipaddr && hw.src != own hwaddr (someone is using our address) + */ + if (ip4_addr_eq(&sipaddr, &acd->ipaddr) && + !eth_addr_eq(&netifaddr, &hdr->shwaddr)) { + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE | LWIP_DBG_LEVEL_WARNING, + ("acd_arp_reply(): Conflicting ARP-Packet detected\n")); + acd_handle_arp_conflict(netif, acd); + } + break; + } + } +} + +/** + * Handle a IP address conflict after an ARP conflict detection + */ +static void +acd_handle_arp_conflict(struct netif *netif, struct acd *acd) +{ + /* RFC5227, 2.4 "Ongoing Address Conflict Detection and Address Defense" + allows three options where: + a) means retreat on the first conflict, + b) allows to keep an already configured address when having only one + conflict in DEFEND_INTERVAL seconds and + c) the host will not give up it's address and defend it indefinitely + + We use option b) when the acd module represents the netif address, since it + helps to improve the chance that one of the two conflicting hosts may be + able to retain its address. while we are flexible enough to help network + performance + + We use option a) when the acd module does not represent the netif address, + since we cannot have the acd module announcing or restarting. This + situation occurs for the LL acd module when a routable address is used on + the netif but the LL address is still open in the background. */ + + if (acd->state == ACD_STATE_PASSIVE_ONGOING) { + /* Immediately back off on a conflict. */ + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_handle_arp_conflict(): conflict when we are in passive mode -> back off\n")); + acd_stop(acd); + acd->acd_conflict_callback(netif, ACD_DECLINE); + } + else { + if (acd->lastconflict > 0) { + /* retreat, there was a conflicting ARP in the last DEFEND_INTERVAL seconds */ + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_handle_arp_conflict(): conflict within DEFEND_INTERVAL -> retreating\n")); + + /* Active TCP sessions are aborted when removing the ip address but a bad + * connection was inevitable anyway with conflicting hosts */ + acd_restart(netif, acd); + } else { + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_handle_arp_conflict(): we are defending, send ARP Announce\n")); + etharp_acd_announce(netif, &acd->ipaddr); + acd->lastconflict = DEFEND_INTERVAL * ACD_TICKS_PER_SECOND; + } + } +} + +/** + * Put the acd module in passive ongoing conflict detection. + */ +static void +acd_put_in_passive_mode(struct netif *netif, struct acd *acd) +{ + switch(acd->state) { + case ACD_STATE_OFF: + case ACD_STATE_PASSIVE_ONGOING: + default: + /* do nothing */ + break; + + case ACD_STATE_PROBE_WAIT: + case ACD_STATE_PROBING: + case ACD_STATE_ANNOUNCE_WAIT: + case ACD_STATE_RATE_LIMIT: + acd_stop(acd); + acd->acd_conflict_callback(netif, ACD_DECLINE); + break; + + case ACD_STATE_ANNOUNCING: + case ACD_STATE_ONGOING: + acd->state = ACD_STATE_PASSIVE_ONGOING; + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_put_in_passive_mode()\n")); + break; + } +} + +/** + * @ingroup acd + * Inform the ACD modules of address changes + * + * @param netif network interface on which the address is changing + * @param old_addr old ip address + * @param new_addr new ip address + */ +void +acd_netif_ip_addr_changed(struct netif *netif, const ip_addr_t *old_addr, + const ip_addr_t *new_addr) +{ + struct acd *acd; + + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_netif_ip_addr_changed(): Address changed\n")); + + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_netif_ip_addr_changed(): old address = %s\n", ipaddr_ntoa(old_addr))); + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_netif_ip_addr_changed(): new address = %s\n", ipaddr_ntoa(new_addr))); + + /* If we change from ANY to an IP or from an IP to ANY we do nothing */ + if (ip_addr_isany(old_addr) || ip_addr_isany(new_addr)) { + return; + } + + ACD_FOREACH(acd, netif->acd_list) { + /* Find ACD module of old address */ + if(ip4_addr_eq(&acd->ipaddr, ip_2_ip4(old_addr))) { + /* Did we change from a LL address to a routable address? */ + if (ip_addr_islinklocal(old_addr) && !ip_addr_islinklocal(new_addr)) { + LWIP_DEBUGF(ACD_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("acd_netif_ip_addr_changed(): changed from LL to routable address\n")); + /* Put the module in passive conflict detection mode */ + acd_put_in_passive_mode(netif, acd); + } + } + } +} + +#endif /* LWIP_IPV4 && LWIP_ACD */ diff --git a/middleware/lwip/src/core/ipv4/autoip.c b/middleware/lwip/src/core/ipv4/autoip.c new file mode 100644 index 0000000..869bf9b --- /dev/null +++ b/middleware/lwip/src/core/ipv4/autoip.c @@ -0,0 +1,379 @@ +/** + * @file + * AutoIP Automatic LinkLocal IP Configuration + * + * This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform + * with RFC 3927. It uses IPv4 address conflict detection to evaluate the chosen + * address. The ACD module aims to be conform to RFC 5227. + * RFC 5227 is extracted out of RFC 3927 so the acd module fits nicely in autoip. + * + * @defgroup autoip AUTOIP + * @ingroup ip4 + * AUTOIP related functions + * USAGE: + * + * define @ref LWIP_AUTOIP 1 in your lwipopts.h + * + * Without DHCP: + * - Call autoip_start() after netif_add(). + * + * With DHCP: + * - define @ref LWIP_DHCP_AUTOIP_COOP 1 in your lwipopts.h. + * - Configure your DHCP Client. + * + * @see netifapi_autoip + */ + +/* + * + * Copyright (c) 2007 Dominik Spies + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dominik Spies + */ + +#include "lwip/opt.h" + +#if LWIP_IPV4 && LWIP_AUTOIP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/mem.h" +/* #include "lwip/udp.h" */ +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/autoip.h" +#include "lwip/acd.h" +#include "lwip/etharp.h" +#include "lwip/prot/autoip.h" + +#include + +/** + * Macro that generates the initial IP address to be tried by AUTOIP. + * If you want to override this, define it to something else in lwipopts.h. + */ +#ifndef LWIP_AUTOIP_CREATE_SEED_ADDR +#define LWIP_AUTOIP_CREATE_SEED_ADDR(netif) \ + lwip_htonl(AUTOIP_RANGE_START + ((u32_t)(((u8_t)(netif->hwaddr[4])) | \ + ((u32_t)((u8_t)(netif->hwaddr[5]))) << 8))) +#endif /* LWIP_AUTOIP_CREATE_SEED_ADDR */ + +/* Function definitions */ +static void autoip_restart(struct netif *netif); +static void autoip_create_addr(struct netif *netif, ip4_addr_t *ipaddr); +static err_t autoip_bind(struct netif *netif); +static void autoip_conflict_callback(struct netif *netif, + acd_callback_enum_t state); + +/** + * @ingroup autoip + * Set a statically allocated struct autoip to work with. + * Using this prevents autoip_start to allocate it using mem_malloc. + * + * @param netif the netif for which to set the struct autoip + * @param autoip (uninitialised) autoip struct allocated by the application + */ +void +autoip_set_struct(struct netif *netif, struct autoip *autoip) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("netif != NULL", netif != NULL); + LWIP_ASSERT("autoip != NULL", autoip != NULL); + LWIP_ASSERT("netif already has a struct autoip set", + netif_autoip_data(netif) == NULL); + + /* clear data structure */ + memset(autoip, 0, sizeof(struct autoip)); + /* autoip->state = AUTOIP_STATE_OFF; */ + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP, autoip); +} + +/** + * @ingroup autoip + * Remove a struct autoip previously set to the netif using autoip_set_struct() + * + * @param netif the netif for which to set the struct autoip + */ +void +autoip_remove_struct(struct netif *netif) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("netif != NULL", netif != NULL); + LWIP_ASSERT("netif has no struct autoip set", + netif_autoip_data(netif) != NULL); + + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP, NULL); +} + +/** Restart AutoIP client and check the next address (conflict detected) + * + * @param netif The netif under AutoIP control + */ +static void +autoip_restart(struct netif *netif) +{ + struct autoip *autoip = netif_autoip_data(netif); + autoip->tried_llipaddr++; + autoip_start(netif); +} + + +/** + * Create an IP-Address out of range 169.254.1.0 to 169.254.254.255 + * + * @param netif network interface on which create the IP-Address + * @param ipaddr ip address to initialize + */ +static void +autoip_create_addr(struct netif *netif, ip4_addr_t *ipaddr) +{ + struct autoip *autoip = netif_autoip_data(netif); + + /* Here we create an IP-Address out of range 169.254.1.0 to 169.254.254.255 + * compliant to RFC 3927 Section 2.1 + * We have 254 * 256 possibilities */ + + u32_t addr = lwip_ntohl(LWIP_AUTOIP_CREATE_SEED_ADDR(netif)); + addr += autoip->tried_llipaddr; + addr = AUTOIP_NET | (addr & 0xffff); + /* Now, 169.254.0.0 <= addr <= 169.254.255.255 */ + + if (addr < AUTOIP_RANGE_START) { + addr += AUTOIP_RANGE_END - AUTOIP_RANGE_START + 1; + } + if (addr > AUTOIP_RANGE_END) { + addr -= AUTOIP_RANGE_END - AUTOIP_RANGE_START + 1; + } + LWIP_ASSERT("AUTOIP address not in range", (addr >= AUTOIP_RANGE_START) && + (addr <= AUTOIP_RANGE_END)); + ip4_addr_set_u32(ipaddr, lwip_htonl(addr)); + + LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("autoip_create_addr(): tried_llipaddr=%"U16_F", %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + (u16_t)(autoip->tried_llipaddr), ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), + ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr))); +} + + +/** + * Configure interface for use with current LL IP-Address + * + * @param netif network interface to configure with current LL IP-Address + */ +static err_t +autoip_bind(struct netif *netif) +{ + struct autoip *autoip = netif_autoip_data(netif); + ip4_addr_t sn_mask, gw_addr; + + autoip->state = AUTOIP_STATE_BOUND; + + LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, + ("autoip_bind(netif=%p) %c%c%"U16_F" %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num, + ip4_addr1_16(&autoip->llipaddr), ip4_addr2_16(&autoip->llipaddr), + ip4_addr3_16(&autoip->llipaddr), ip4_addr4_16(&autoip->llipaddr))); + + IP4_ADDR(&sn_mask, 255, 255, 0, 0); + IP4_ADDR(&gw_addr, 0, 0, 0, 0); + + netif_set_addr(netif, &autoip->llipaddr, &sn_mask, &gw_addr); + /* interface is used by routing now that an address is set */ + + return ERR_OK; +} + +/** +* Handle conflict information from ACD module +* +* @param netif network interface to handle conflict information on +* @param state acd_callback_enum_t + */ +static void +autoip_conflict_callback(struct netif *netif, acd_callback_enum_t state) +{ + struct autoip *autoip = netif_autoip_data(netif); + + switch (state) { + case ACD_IP_OK: + autoip_bind(netif); + break; + case ACD_RESTART_CLIENT: + autoip_restart(netif); + break; + case ACD_DECLINE: + /* "delete" conflicting address so a new one will be selected in + * autoip_start() */ + ip4_addr_set_any(&autoip->llipaddr); + autoip_stop(netif); + break; + default: + break; + } +} + +/** + * @ingroup autoip + * Start AutoIP client + * + * @param netif network interface on which start the AutoIP client + */ +err_t +autoip_start(struct netif *netif) +{ + struct autoip *autoip = netif_autoip_data(netif); + err_t result = ERR_OK; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ERROR("netif is not up, old style port?", netif_is_up(netif), return ERR_ARG;); + + if (autoip == NULL) { + /* no AutoIP client attached yet? */ + LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, + ("autoip_start(): starting new AUTOIP client\n")); + autoip = (struct autoip *)mem_calloc(1, sizeof(struct autoip)); + if (autoip == NULL) { + LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, + ("autoip_start(): could not allocate autoip\n")); + return ERR_MEM; + } + /* store this AutoIP client in the netif */ + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP, autoip); + LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, ("autoip_start(): allocated autoip")); + } + + if (autoip->state == AUTOIP_STATE_OFF) { + LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("autoip_start(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], + netif->name[1], (u16_t)netif->num)); + + /* add acd struct to list*/ + acd_add(netif, &autoip->acd, autoip_conflict_callback); + + /* In accordance to RFC3927 section 2.1: + * Keep using the same link local address as much as possible. + * Only when there is none or when there was a conflict, select a new one. + */ + if (!ip4_addr_islinklocal(&autoip->llipaddr)) { + autoip_create_addr(netif, &(autoip->llipaddr)); + } + autoip->state = AUTOIP_STATE_CHECKING; + acd_start(netif, &autoip->acd, autoip->llipaddr); + } else { + LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("autoip_start(): already started on netif=%p %c%c%"U16_F"\n", + (void *)netif, netif->name[0], + netif->name[1], (u16_t)netif->num)); + } + + return result; +} + + +/** + * Handle a possible change in the network configuration: link up + * + * If there is an AutoIP address configured and AutoIP is not in cooperation + * with DHCP, start probing for previous address. + */ +void +autoip_network_changed_link_up(struct netif *netif) +{ + struct autoip *autoip = netif_autoip_data(netif); + + if (autoip && (autoip->state != AUTOIP_STATE_OFF) && !LWIP_DHCP_AUTOIP_COOP) { + LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, + ("autoip_network_changed_link_up(): start acd")); + autoip->state = AUTOIP_STATE_CHECKING; + /* Start acd check again for the last used address */ + acd_start(netif, &autoip->acd, autoip->llipaddr); + } +} + +/** + * Handle a possible change in the network configuration: link down + * + * If there is an AutoIP address configured and AutoIP is in cooperation + * with DHCP, then stop the autoip module. When the link goes up, we do not want + * the autoip module to start again. DHCP will initiate autoip when needed. + */ +void +autoip_network_changed_link_down(struct netif *netif) +{ + struct autoip *autoip = netif_autoip_data(netif); + + if (autoip && (autoip->state != AUTOIP_STATE_OFF) && LWIP_DHCP_AUTOIP_COOP) { + LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, + ("autoip_network_changed_link_down(): stop autoip")); + autoip_stop(netif); + } +} + +/** + * @ingroup autoip + * Stop AutoIP client + * + * @param netif network interface on which stop the AutoIP client + */ +err_t +autoip_stop(struct netif *netif) +{ + struct autoip *autoip = netif_autoip_data(netif); + + LWIP_ASSERT_CORE_LOCKED(); + if (autoip != NULL) { + autoip->state = AUTOIP_STATE_OFF; + if (ip4_addr_islinklocal(netif_ip4_addr(netif))) { + netif_set_addr(netif, IP4_ADDR_ANY4, IP4_ADDR_ANY4, IP4_ADDR_ANY4); + } + LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE,("autoip_stop()")); + } + return ERR_OK; +} + +/** check if AutoIP supplied netif->ip_addr + * + * @param netif the netif to check + * @return 1 if AutoIP supplied netif->ip_addr (state BOUND), + * 0 otherwise + */ +u8_t +autoip_supplied_address(struct netif *netif) +{ + struct autoip *autoip = netif_autoip_data(netif); + return (autoip != NULL) + && (ip4_addr_eq(netif_ip4_addr(netif), &(autoip->llipaddr))) + && (autoip->state == AUTOIP_STATE_BOUND); +} + +u8_t +autoip_accept_packet(struct netif *netif, const ip4_addr_t *addr) +{ + struct autoip *autoip = netif_autoip_data(netif); + return (autoip != NULL) + && (ip4_addr_eq(addr, &(autoip->llipaddr))) + && (autoip->state == AUTOIP_STATE_BOUND); +} + +#endif /* LWIP_IPV4 && LWIP_AUTOIP */ diff --git a/middleware/lwip/src/core/ipv4/dhcp.c b/middleware/lwip/src/core/ipv4/dhcp.c new file mode 100644 index 0000000..dc6fba0 --- /dev/null +++ b/middleware/lwip/src/core/ipv4/dhcp.c @@ -0,0 +1,1968 @@ +/** + * @file + * Dynamic Host Configuration Protocol client + * + * @defgroup dhcp4 DHCPv4 + * @ingroup ip4 + * DHCP (IPv4) related functions + * This is a DHCP client for the lwIP TCP/IP stack. It aims to conform + * with RFC 2131 and RFC 2132. + * + * @todo: + * - Support for interfaces other than Ethernet (SLIP, PPP, ...) + * + * Options: + * @ref DHCP_COARSE_TIMER_SECS (recommended 60 which is a minute) + * @ref DHCP_FINE_TIMER_MSECS (recommended 500 which equals TCP coarse timer) + * + * dhcp_start() starts a DHCP client instance which + * configures the interface by obtaining an IP address lease and maintaining it. + * + * Use dhcp_release() to end the lease and use dhcp_stop() + * to remove the DHCP client. + * + * @see LWIP_HOOK_DHCP_APPEND_OPTIONS + * @see LWIP_HOOK_DHCP_PARSE_OPTION + * + * @see netifapi_dhcp4 + */ + +/* + * Copyright (c) 2001-2004 Leon Woestenberg + * Copyright (c) 2001-2004 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * The Swedish Institute of Computer Science and Adam Dunkels + * are specifically granted permission to redistribute this + * source code. + * + * Author: Leon Woestenberg + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV4 && LWIP_DHCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/stats.h" +#include "lwip/mem.h" +#include "lwip/udp.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/def.h" +#include "lwip/dhcp.h" +#include "lwip/autoip.h" +#include "lwip/acd.h" +#include "lwip/dns.h" +#include "lwip/etharp.h" +#include "lwip/prot/dhcp.h" +#include "lwip/prot/iana.h" + +#include + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif +#ifndef LWIP_HOOK_DHCP_APPEND_OPTIONS +#define LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, state, msg, msg_type, options_len_ptr) +#endif +#ifndef LWIP_HOOK_DHCP_PARSE_OPTION +#define LWIP_HOOK_DHCP_PARSE_OPTION(netif, dhcp, state, msg, msg_type, option, len, pbuf, offset) do { LWIP_UNUSED_ARG(msg); } while(0) +#endif + +/** DHCP_CREATE_RAND_XID: if this is set to 1, the xid is created using + * LWIP_RAND() (this overrides DHCP_GLOBAL_XID) + */ +#ifndef DHCP_CREATE_RAND_XID +#define DHCP_CREATE_RAND_XID 1 +#endif + +/** Default for DHCP_GLOBAL_XID is 0xABCD0000 + * This can be changed by defining DHCP_GLOBAL_XID and DHCP_GLOBAL_XID_HEADER, e.g. + * \#define DHCP_GLOBAL_XID_HEADER "stdlib.h" + * \#define DHCP_GLOBAL_XID rand() + */ +#ifdef DHCP_GLOBAL_XID_HEADER +#include DHCP_GLOBAL_XID_HEADER /* include optional starting XID generation prototypes */ +#endif + +/** DHCP_OPTION_MAX_MSG_SIZE is set to the MTU + * MTU is checked to be big enough in dhcp_start */ +#define DHCP_MAX_MSG_LEN(netif) (netif->mtu) +#define DHCP_MAX_MSG_LEN_MIN_REQUIRED 576 +/** Minimum length for reply before packet is parsed */ +#define DHCP_MIN_REPLY_LEN 44 + +#define REBOOT_TRIES 2 + +#if LWIP_DNS && LWIP_DHCP_MAX_DNS_SERVERS +#if DNS_MAX_SERVERS > LWIP_DHCP_MAX_DNS_SERVERS +#define LWIP_DHCP_PROVIDE_DNS_SERVERS LWIP_DHCP_MAX_DNS_SERVERS +#else +#define LWIP_DHCP_PROVIDE_DNS_SERVERS DNS_MAX_SERVERS +#endif +#else +#define LWIP_DHCP_PROVIDE_DNS_SERVERS 0 +#endif + +#ifndef LWIP_DHCP_INPUT_ERROR +#define LWIP_DHCP_INPUT_ERROR(message, expression, handler) do { if (!(expression)) { \ + handler;} } while(0) +#endif + +/** Option handling: options are parsed in dhcp_parse_reply + * and saved in an array where other functions can load them from. + * This might be moved into the struct dhcp (not necessarily since + * lwIP is single-threaded and the array is only used while in recv + * callback). */ +enum dhcp_option_idx { + DHCP_OPTION_IDX_OVERLOAD = 0, + DHCP_OPTION_IDX_MSG_TYPE, + DHCP_OPTION_IDX_SERVER_ID, + DHCP_OPTION_IDX_LEASE_TIME, + DHCP_OPTION_IDX_T1, + DHCP_OPTION_IDX_T2, + DHCP_OPTION_IDX_SUBNET_MASK, + DHCP_OPTION_IDX_ROUTER, +#if LWIP_DHCP_PROVIDE_DNS_SERVERS + DHCP_OPTION_IDX_DNS_SERVER, + DHCP_OPTION_IDX_DNS_SERVER_LAST = DHCP_OPTION_IDX_DNS_SERVER + LWIP_DHCP_PROVIDE_DNS_SERVERS - 1, +#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS */ +#if LWIP_DHCP_GET_NTP_SRV + DHCP_OPTION_IDX_NTP_SERVER, + DHCP_OPTION_IDX_NTP_SERVER_LAST = DHCP_OPTION_IDX_NTP_SERVER + LWIP_DHCP_MAX_NTP_SERVERS - 1, +#endif /* LWIP_DHCP_GET_NTP_SRV */ + DHCP_OPTION_IDX_MAX +}; + +/** Holds the decoded option values, only valid while in dhcp_recv. + @todo: move this into struct dhcp? */ +u32_t dhcp_rx_options_val[DHCP_OPTION_IDX_MAX]; +/** Holds a flag which option was received and is contained in dhcp_rx_options_val, + only valid while in dhcp_recv. + @todo: move this into struct dhcp? */ +u8_t dhcp_rx_options_given[DHCP_OPTION_IDX_MAX]; + +static u8_t dhcp_discover_request_options[] = { + DHCP_OPTION_SUBNET_MASK, + DHCP_OPTION_ROUTER, + DHCP_OPTION_BROADCAST +#if LWIP_DHCP_PROVIDE_DNS_SERVERS + , DHCP_OPTION_DNS_SERVER +#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS */ +#if LWIP_DHCP_GET_NTP_SRV + , DHCP_OPTION_NTP +#endif /* LWIP_DHCP_GET_NTP_SRV */ +}; + +#ifdef DHCP_GLOBAL_XID +static u32_t xid; +static u8_t xid_initialised; +#endif /* DHCP_GLOBAL_XID */ + +#define dhcp_option_given(dhcp, idx) (dhcp_rx_options_given[idx] != 0) +#define dhcp_got_option(dhcp, idx) (dhcp_rx_options_given[idx] = 1) +#define dhcp_clear_option(dhcp, idx) (dhcp_rx_options_given[idx] = 0) +#define dhcp_clear_all_options(dhcp) (memset(dhcp_rx_options_given, 0, sizeof(dhcp_rx_options_given))) +#define dhcp_get_option_value(dhcp, idx) (dhcp_rx_options_val[idx]) +#define dhcp_set_option_value(dhcp, idx, val) (dhcp_rx_options_val[idx] = (val)) + +static struct udp_pcb *dhcp_pcb; +static u8_t dhcp_pcb_refcount; + +/* DHCP client state machine functions */ +static err_t dhcp_discover(struct netif *netif); +static err_t dhcp_select(struct netif *netif); +static void dhcp_bind(struct netif *netif); +#if LWIP_DHCP_DOES_ACD_CHECK +static err_t dhcp_decline(struct netif *netif); +#endif /* LWIP_DHCP_DOES_ACD_CHECK */ +static err_t dhcp_rebind(struct netif *netif); +static err_t dhcp_reboot(struct netif *netif); +static void dhcp_set_state(struct dhcp *dhcp, u8_t new_state); + +/* receive, unfold, parse and free incoming messages */ +static void dhcp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port); + +/* set the DHCP timers */ +static void dhcp_timeout(struct netif *netif); +static void dhcp_t1_timeout(struct netif *netif); +static void dhcp_t2_timeout(struct netif *netif); + +/* build outgoing messages */ +/* create a DHCP message, fill in common headers */ +static struct pbuf *dhcp_create_msg(struct netif *netif, struct dhcp *dhcp, u8_t message_type, u16_t *options_out_len); +/* add a DHCP option (type, then length in bytes) */ +static u16_t dhcp_option(u16_t options_out_len, u8_t *options, u8_t option_type, u8_t option_len); +/* add option values */ +static u16_t dhcp_option_byte(u16_t options_out_len, u8_t *options, u8_t value); +static u16_t dhcp_option_short(u16_t options_out_len, u8_t *options, u16_t value); +static u16_t dhcp_option_long(u16_t options_out_len, u8_t *options, u32_t value); +#if LWIP_NETIF_HOSTNAME +static u16_t dhcp_option_hostname(u16_t options_out_len, u8_t *options, struct netif *netif); +#endif /* LWIP_NETIF_HOSTNAME */ +/* always add the DHCP options trailer to end and pad */ +static void dhcp_option_trailer(u16_t options_out_len, u8_t *options, struct pbuf *p_out); + +/** Ensure DHCP PCB is allocated and bound */ +static err_t +dhcp_inc_pcb_refcount(void) +{ + if (dhcp_pcb_refcount == 0) { + LWIP_ASSERT("dhcp_inc_pcb_refcount(): memory leak", dhcp_pcb == NULL); + + /* allocate UDP PCB */ + dhcp_pcb = udp_new(); + + if (dhcp_pcb == NULL) { + return ERR_MEM; + } + + ip_set_option(dhcp_pcb, SOF_BROADCAST); + + /* set up local and remote port for the pcb -> listen on all interfaces on all src/dest IPs */ + udp_bind(dhcp_pcb, IP4_ADDR_ANY, LWIP_IANA_PORT_DHCP_CLIENT); + udp_connect(dhcp_pcb, IP4_ADDR_ANY, LWIP_IANA_PORT_DHCP_SERVER); + udp_recv(dhcp_pcb, dhcp_recv, NULL); + } + + dhcp_pcb_refcount++; + + return ERR_OK; +} + +/** Free DHCP PCB if the last netif stops using it */ +static void +dhcp_dec_pcb_refcount(void) +{ + LWIP_ASSERT("dhcp_pcb_refcount(): refcount error", (dhcp_pcb_refcount > 0)); + dhcp_pcb_refcount--; + + if (dhcp_pcb_refcount == 0) { + udp_remove(dhcp_pcb); + dhcp_pcb = NULL; + } +} + +/** + * Back-off the DHCP client (because of a received NAK response). + * + * Back-off the DHCP client because of a received NAK. Receiving a + * NAK means the client asked for something non-sensible, for + * example when it tries to renew a lease obtained on another network. + * + * We clear any existing set IP address and restart DHCP negotiation + * afresh (as per RFC2131 3.2.3). + * + * @param netif the netif under DHCP control + */ +static void +dhcp_handle_nak(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_handle_nak(netif=%p) %c%c%"U16_F"\n", + (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); + /* Change to a defined state - set this before assigning the address + to ensure the callback can use dhcp_supplied_address() */ + dhcp_set_state(dhcp, DHCP_STATE_BACKING_OFF); + /* remove IP address from interface (must no longer be used, as per RFC2131) */ + netif_set_addr(netif, IP4_ADDR_ANY4, IP4_ADDR_ANY4, IP4_ADDR_ANY4); + /* We can immediately restart discovery */ + dhcp_discover(netif); +} + +#if LWIP_DHCP_DOES_ACD_CHECK +/** +* Handle conflict information from ACD module +* +* @param netif network interface to handle conflict information on +* @param state acd_callback_enum_t + */ +static void +dhcp_conflict_callback(struct netif *netif, acd_callback_enum_t state) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + u16_t msecs; + + switch (state) { + case ACD_IP_OK: + dhcp_bind(netif); + break; + case ACD_RESTART_CLIENT: + /* wait 10s before restarting + * According to RFC2131 section 3.1 point 5: + * If the client detects that the address is already in use (e.g., through + * the use of ARP), the client MUST send a DHCPDECLINE message to the + * server and restarts the configuration process. The client SHOULD wait + * a minimum of ten seconds before restarting the configuration process to + * avoid excessive network traffic in case of looping. */ + dhcp_set_state(dhcp, DHCP_STATE_BACKING_OFF); + msecs = 10 * 1000; + dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_decline(): set request timeout %"U16_F" msecs\n", msecs)); + break; + case ACD_DECLINE: + /* remove IP address from interface + * (prevents routing from selecting this interface) */ + netif_set_addr(netif, IP4_ADDR_ANY4, IP4_ADDR_ANY4, IP4_ADDR_ANY4); + /* Let the DHCP server know we will not use the address */ + dhcp_decline(netif); + break; + default: + break; + } +} + +/** + * Checks if the offered IP address is already in use. + * + * It does this according to the address conflict detection method described in + * RFC5227. + * + * @param netif the netif under DHCP control + */ +static void +dhcp_check(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_check(netif=%p) %c%c\n", (void *)netif, (s16_t)netif->name[0], + (s16_t)netif->name[1])); + dhcp_set_state(dhcp, DHCP_STATE_CHECKING); + + /* start ACD module */ + acd_start(netif, &dhcp->acd, dhcp->offered_ip_addr); +} +#endif /* LWIP_DHCP_DOES_ACD_CHECK */ + +/** + * Remember the configuration offered by a DHCP server. + * + * @param netif the netif under DHCP control + */ +static void +dhcp_handle_offer(struct netif *netif, struct dhcp_msg *msg_in) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_handle_offer(netif=%p) %c%c%"U16_F"\n", + (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); + /* obtain the server address */ + if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_SERVER_ID)) { + dhcp->request_timeout = 0; /* stop timer */ + + ip_addr_set_ip4_u32(&dhcp->server_ip_addr, lwip_htonl(dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_SERVER_ID))); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_STATE, ("dhcp_handle_offer(): server 0x%08"X32_F"\n", + ip4_addr_get_u32(ip_2_ip4(&dhcp->server_ip_addr)))); + /* remember offered address */ + ip4_addr_copy(dhcp->offered_ip_addr, msg_in->yiaddr); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_STATE, ("dhcp_handle_offer(): offer for 0x%08"X32_F"\n", + ip4_addr_get_u32(&dhcp->offered_ip_addr))); + + dhcp_select(netif); + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, + ("dhcp_handle_offer(netif=%p) did not get server ID!\n", (void *)netif)); + } +} + +/** + * Select a DHCP server offer out of all offers. + * + * Simply select the first offer received. + * + * @param netif the netif under DHCP control + * @return lwIP specific error (see error.h) + */ +static err_t +dhcp_select(struct netif *netif) +{ + struct dhcp *dhcp; + err_t result; + u16_t msecs; + u8_t i; + struct pbuf *p_out; + u16_t options_out_len; + + LWIP_ERROR("dhcp_select: netif != NULL", (netif != NULL), return ERR_ARG;); + dhcp = netif_dhcp_data(netif); + LWIP_ERROR("dhcp_select: dhcp != NULL", (dhcp != NULL), return ERR_VAL;); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_select(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); + dhcp_set_state(dhcp, DHCP_STATE_REQUESTING); + + /* create and initialize the DHCP message header */ + p_out = dhcp_create_msg(netif, dhcp, DHCP_REQUEST, &options_out_len); + if (p_out != NULL) { + struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); + options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN(netif)); + + /* MUST request the offered IP address */ + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_REQUESTED_IP, 4); + options_out_len = dhcp_option_long(options_out_len, msg_out->options, lwip_ntohl(ip4_addr_get_u32(&dhcp->offered_ip_addr))); + + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_SERVER_ID, 4); + options_out_len = dhcp_option_long(options_out_len, msg_out->options, lwip_ntohl(ip4_addr_get_u32(ip_2_ip4(&dhcp->server_ip_addr)))); + + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_PARAMETER_REQUEST_LIST, LWIP_ARRAYSIZE(dhcp_discover_request_options)); + for (i = 0; i < LWIP_ARRAYSIZE(dhcp_discover_request_options); i++) { + options_out_len = dhcp_option_byte(options_out_len, msg_out->options, dhcp_discover_request_options[i]); + } + +#if LWIP_NETIF_HOSTNAME + options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif); +#endif /* LWIP_NETIF_HOSTNAME */ + + LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_REQUESTING, msg_out, DHCP_REQUEST, &options_out_len); + dhcp_option_trailer(options_out_len, msg_out->options, p_out); + + /* send broadcast to any DHCP server */ + result = udp_sendto_if_src(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif, IP4_ADDR_ANY); + pbuf_free(p_out); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_select: REQUESTING\n")); + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("dhcp_select: could not allocate DHCP request\n")); + result = ERR_MEM; + } + if (dhcp->tries < 255) { + dhcp->tries++; + } + msecs = (u16_t)((dhcp->tries < 6 ? 1 << dhcp->tries : 60) * 1000); + dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_STATE, ("dhcp_select(): set request timeout %"U16_F" msecs\n", msecs)); + return result; +} + +/** + * The DHCP timer that checks for lease renewal/rebind timeouts. + * Must be called once a minute (see @ref DHCP_COARSE_TIMER_SECS). + */ +void +dhcp_coarse_tmr(void) +{ + struct netif *netif; + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_coarse_tmr()\n")); + /* iterate through all network interfaces */ + NETIF_FOREACH(netif) { + /* only act on DHCP configured interfaces */ + struct dhcp *dhcp = netif_dhcp_data(netif); + if ((dhcp != NULL) && (dhcp->state != DHCP_STATE_OFF)) { + /* compare lease time to expire timeout */ + if (dhcp->t0_timeout && (++dhcp->lease_used == dhcp->t0_timeout)) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_coarse_tmr(): t0 timeout\n")); + /* this clients' lease time has expired */ + dhcp_release_and_stop(netif); + dhcp_start(netif); + /* timer is active (non zero), and triggers (zeroes) now? */ + } else if (dhcp->t2_rebind_time && (dhcp->t2_rebind_time-- == 1)) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_coarse_tmr(): t2 timeout\n")); + /* this clients' rebind timeout triggered */ + dhcp_t2_timeout(netif); + /* timer is active (non zero), and triggers (zeroes) now */ + } else if (dhcp->t1_renew_time && (dhcp->t1_renew_time-- == 1)) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_coarse_tmr(): t1 timeout\n")); + /* this clients' renewal timeout triggered */ + dhcp_t1_timeout(netif); + } + } + } +} + +/** + * DHCP transaction timeout handling (this function must be called every 500ms, + * see @ref DHCP_FINE_TIMER_MSECS). + * + * A DHCP server is expected to respond within a short period of time. + * This timer checks whether an outstanding DHCP request is timed out. + */ +void +dhcp_fine_tmr(void) +{ + struct netif *netif; + /* loop through netif's */ + NETIF_FOREACH(netif) { + struct dhcp *dhcp = netif_dhcp_data(netif); + /* only act on DHCP configured interfaces */ + if (dhcp != NULL) { + /* timer is active (non zero), and is about to trigger now */ + if (dhcp->request_timeout > 1) { + dhcp->request_timeout--; + } else if (dhcp->request_timeout == 1) { + dhcp->request_timeout--; + /* { dhcp->request_timeout == 0 } */ + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_fine_tmr(): request timeout\n")); + /* this client's request timeout triggered */ + dhcp_timeout(netif); + } + } + } +} + +/** + * A DHCP negotiation transaction, or ARP request, has timed out. + * + * The timer that was started with the DHCP or ARP request has + * timed out, indicating no response was received in time. + * + * @param netif the netif under DHCP control + */ +static void +dhcp_timeout(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_timeout()\n")); + /* back-off period has passed, or server selection timed out */ + if ((dhcp->state == DHCP_STATE_BACKING_OFF) || (dhcp->state == DHCP_STATE_SELECTING)) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_timeout(): restarting discovery\n")); + dhcp_discover(netif); + /* receiving the requested lease timed out */ + } else if (dhcp->state == DHCP_STATE_REQUESTING) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_timeout(): REQUESTING, DHCP request timed out\n")); + if (dhcp->tries <= 5) { + dhcp_select(netif); + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_timeout(): REQUESTING, releasing, restarting\n")); + dhcp_release_and_stop(netif); + dhcp_start(netif); + } + } else if (dhcp->state == DHCP_STATE_REBOOTING) { + if (dhcp->tries < REBOOT_TRIES) { + dhcp_reboot(netif); + } else { + dhcp_discover(netif); + } + } +} + +/** + * The renewal period has timed out. + * + * @param netif the netif under DHCP control + */ +static void +dhcp_t1_timeout(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_STATE, ("dhcp_t1_timeout()\n")); + if ((dhcp->state == DHCP_STATE_REQUESTING) || (dhcp->state == DHCP_STATE_BOUND) || + (dhcp->state == DHCP_STATE_RENEWING)) { + /* just retry to renew - note that the rebind timer (t2) will + * eventually time-out if renew tries fail. */ + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("dhcp_t1_timeout(): must renew\n")); + /* This slightly different to RFC2131: DHCPREQUEST will be sent from state + DHCP_STATE_RENEWING, not DHCP_STATE_BOUND */ + dhcp_renew(netif); + /* Calculate next timeout */ + if (((dhcp->t2_timeout - dhcp->lease_used) / 2) >= ((60 + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS)) { + dhcp->t1_renew_time = (u16_t)((dhcp->t2_timeout - dhcp->lease_used) / 2); + } + } +} + +/** + * The rebind period has timed out. + * + * @param netif the netif under DHCP control + */ +static void +dhcp_t2_timeout(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_t2_timeout()\n")); + if ((dhcp->state == DHCP_STATE_REQUESTING) || (dhcp->state == DHCP_STATE_BOUND) || + (dhcp->state == DHCP_STATE_RENEWING) || (dhcp->state == DHCP_STATE_REBINDING)) { + /* just retry to rebind */ + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + ("dhcp_t2_timeout(): must rebind\n")); + /* This slightly different to RFC2131: DHCPREQUEST will be sent from state + DHCP_STATE_REBINDING, not DHCP_STATE_BOUND */ + dhcp_rebind(netif); + /* Calculate next timeout */ + if (((dhcp->t0_timeout - dhcp->lease_used) / 2) >= ((60 + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS)) { + dhcp->t2_rebind_time = (u16_t)((dhcp->t0_timeout - dhcp->lease_used) / 2); + } + } +} + +/** + * Handle a DHCP ACK packet + * + * @param netif the netif under DHCP control + */ +static void +dhcp_handle_ack(struct netif *netif, struct dhcp_msg *msg_in) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + +#if LWIP_DHCP_PROVIDE_DNS_SERVERS || LWIP_DHCP_GET_NTP_SRV + u8_t n; +#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS || LWIP_DHCP_GET_NTP_SRV */ +#if LWIP_DHCP_GET_NTP_SRV + ip4_addr_t ntp_server_addrs[LWIP_DHCP_MAX_NTP_SERVERS]; +#endif + + /* clear options we might not get from the ACK */ + ip4_addr_set_zero(&dhcp->offered_sn_mask); + ip4_addr_set_zero(&dhcp->offered_gw_addr); +#if LWIP_DHCP_BOOTP_FILE + ip4_addr_set_zero(&dhcp->offered_si_addr); +#endif /* LWIP_DHCP_BOOTP_FILE */ + + /* lease time given? */ + if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_LEASE_TIME)) { + /* remember offered lease time */ + dhcp->offered_t0_lease = dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_LEASE_TIME); + } + /* renewal period given? */ + if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_T1)) { + /* remember given renewal period */ + dhcp->offered_t1_renew = dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_T1); + } else { + /* calculate safe periods for renewal */ + dhcp->offered_t1_renew = dhcp->offered_t0_lease / 2; + } + + /* renewal period given? */ + if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_T2)) { + /* remember given rebind period */ + dhcp->offered_t2_rebind = dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_T2); + } else { + /* calculate safe periods for rebinding (offered_t0_lease * 0.875 -> 87.5%)*/ + dhcp->offered_t2_rebind = (dhcp->offered_t0_lease * 7U) / 8U; + } + + /* (y)our internet address */ + ip4_addr_copy(dhcp->offered_ip_addr, msg_in->yiaddr); + +#if LWIP_DHCP_BOOTP_FILE + /* copy boot server address, + boot file name copied in dhcp_parse_reply if not overloaded */ + ip4_addr_copy(dhcp->offered_si_addr, msg_in->siaddr); +#endif /* LWIP_DHCP_BOOTP_FILE */ + + /* subnet mask given? */ + if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_SUBNET_MASK)) { + /* remember given subnet mask */ + ip4_addr_set_u32(&dhcp->offered_sn_mask, lwip_htonl(dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_SUBNET_MASK))); + dhcp->subnet_mask_given = 1; + } else { + dhcp->subnet_mask_given = 0; + } + + /* gateway router */ + if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_ROUTER)) { + ip4_addr_set_u32(&dhcp->offered_gw_addr, lwip_htonl(dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_ROUTER))); + } + +#if LWIP_DHCP_GET_NTP_SRV + /* NTP servers */ + for (n = 0; (n < LWIP_DHCP_MAX_NTP_SERVERS) && dhcp_option_given(dhcp, DHCP_OPTION_IDX_NTP_SERVER + n); n++) { + ip4_addr_set_u32(&ntp_server_addrs[n], lwip_htonl(dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_NTP_SERVER + n))); + } + dhcp_set_ntp_servers(n, ntp_server_addrs); +#endif /* LWIP_DHCP_GET_NTP_SRV */ + +#if LWIP_DHCP_PROVIDE_DNS_SERVERS + /* DNS servers */ + for (n = 0; (n < LWIP_DHCP_PROVIDE_DNS_SERVERS) && dhcp_option_given(dhcp, DHCP_OPTION_IDX_DNS_SERVER + n); n++) { + ip_addr_t dns_addr; + ip_addr_set_ip4_u32_val(dns_addr, lwip_htonl(dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_DNS_SERVER + n))); + dns_setserver(n, &dns_addr); + } +#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS */ +} + +/** + * @ingroup dhcp4 + * Set a statically allocated struct dhcp to work with. + * Using this prevents dhcp_start to allocate it using mem_malloc. + * + * @param netif the netif for which to set the struct dhcp + * @param dhcp (uninitialised) dhcp struct allocated by the application + */ +void +dhcp_set_struct(struct netif *netif, struct dhcp *dhcp) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("netif != NULL", netif != NULL); + LWIP_ASSERT("dhcp != NULL", dhcp != NULL); + LWIP_ASSERT("netif already has a struct dhcp set", netif_dhcp_data(netif) == NULL); + + /* clear data structure */ + memset(dhcp, 0, sizeof(struct dhcp)); + /* dhcp_set_state(&dhcp, DHCP_STATE_OFF); */ + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, dhcp); +} + +/** + * @ingroup dhcp4 + * Removes a struct dhcp from a netif. + * + * ATTENTION: Only use this when not using dhcp_set_struct() to allocate the + * struct dhcp since the memory is passed back to the heap. + * + * @param netif the netif from which to remove the struct dhcp + */ +void dhcp_cleanup(struct netif *netif) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("netif != NULL", netif != NULL); + + if (netif_dhcp_data(netif) != NULL) { + mem_free(netif_dhcp_data(netif)); + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, NULL); + } +} + +/** + * @ingroup dhcp4 + * Start DHCP negotiation for a network interface. + * + * If no DHCP client instance was attached to this interface, + * a new client is created first. If a DHCP client instance + * was already present, it restarts negotiation. + * + * @param netif The lwIP network interface + * @return lwIP error code + * - ERR_OK - No error + * - ERR_MEM - Out of memory + */ +err_t +dhcp_start(struct netif *netif) +{ + struct dhcp *dhcp; + err_t result; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ERROR("netif != NULL", (netif != NULL), return ERR_ARG;); + LWIP_ERROR("netif is not up, old style port?", netif_is_up(netif), return ERR_ARG;); + dhcp = netif_dhcp_data(netif); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_start(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); + + /* check MTU of the netif */ + if (netif->mtu < DHCP_MAX_MSG_LEN_MIN_REQUIRED) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): Cannot use this netif with DHCP: MTU is too small\n")); + return ERR_MEM; + } + + /* no DHCP client attached yet? */ + if (dhcp == NULL) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): mallocing new DHCP client\n")); + dhcp = (struct dhcp *)mem_malloc(sizeof(struct dhcp)); + if (dhcp == NULL) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): could not allocate dhcp\n")); + return ERR_MEM; + } + + /* store this dhcp client in the netif */ + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, dhcp); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): allocated dhcp")); + /* already has DHCP client attached */ + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_start(): restarting DHCP configuration\n")); + + if (dhcp->pcb_allocated != 0) { + dhcp_dec_pcb_refcount(); /* free DHCP PCB if not needed any more */ + } + /* dhcp is cleared below, no need to reset flag*/ + } + + /* clear data structure */ + memset(dhcp, 0, sizeof(struct dhcp)); + /* dhcp_set_state(&dhcp, DHCP_STATE_OFF); */ + + +#if LWIP_DHCP_DOES_ACD_CHECK + /* add acd struct to list*/ + acd_add(netif, &dhcp->acd, dhcp_conflict_callback); +#endif /* LWIP_DHCP_DOES_ACD_CHECK */ + + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): starting DHCP configuration\n")); + + if (dhcp_inc_pcb_refcount() != ERR_OK) { /* ensure DHCP PCB is allocated */ + return ERR_MEM; + } + dhcp->pcb_allocated = 1; + + if (!netif_is_link_up(netif)) { + /* set state INIT and wait for dhcp_network_changed() to call dhcp_discover() */ + dhcp_set_state(dhcp, DHCP_STATE_INIT); + return ERR_OK; + } + + /* (re)start the DHCP negotiation */ + result = dhcp_discover(netif); + if (result != ERR_OK) { + /* free resources allocated above */ + dhcp_release_and_stop(netif); + return ERR_MEM; + } + return result; +} + +/** + * @ingroup dhcp4 + * Inform a DHCP server of our manual configuration. + * + * This informs DHCP servers of our fixed IP address configuration + * by sending an INFORM message. It does not involve DHCP address + * configuration, it is just here to be nice to the network. + * + * @param netif The lwIP network interface + */ +void +dhcp_inform(struct netif *netif) +{ + struct dhcp dhcp; + struct pbuf *p_out; + u16_t options_out_len; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ERROR("netif != NULL", (netif != NULL), return;); + + if (dhcp_inc_pcb_refcount() != ERR_OK) { /* ensure DHCP PCB is allocated */ + return; + } + + memset(&dhcp, 0, sizeof(struct dhcp)); + dhcp_set_state(&dhcp, DHCP_STATE_INFORMING); + + /* create and initialize the DHCP message header */ + p_out = dhcp_create_msg(netif, &dhcp, DHCP_INFORM, &options_out_len); + if (p_out != NULL) { + struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); + options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN(netif)); + + LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, &dhcp, DHCP_STATE_INFORMING, msg_out, DHCP_INFORM, &options_out_len); + dhcp_option_trailer(options_out_len, msg_out->options, p_out); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_inform: INFORMING\n")); + + udp_sendto_if(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif); + + pbuf_free(p_out); + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_inform: could not allocate DHCP request\n")); + } + + dhcp_dec_pcb_refcount(); /* delete DHCP PCB if not needed any more */ +} + +/** Handle a possible change in the network configuration. + * + * This enters the REBOOTING state to verify that the currently bound + * address is still valid. + */ +void +dhcp_network_changed_link_up(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + + if (!dhcp) { + return; + } + switch (dhcp->state) { + case DHCP_STATE_REBINDING: + case DHCP_STATE_RENEWING: + case DHCP_STATE_BOUND: + case DHCP_STATE_REBOOTING: + dhcp->tries = 0; + dhcp_reboot(netif); + break; + case DHCP_STATE_OFF: + /* stay off */ + break; + default: + LWIP_ASSERT("invalid dhcp->state", dhcp->state <= DHCP_STATE_BACKING_OFF); + /* INIT/REQUESTING/CHECKING/BACKING_OFF restart with new 'rid' because the + state changes, SELECTING: continue with current 'rid' as we stay in the + same state */ + /* ensure we start with short timeouts, even if already discovering */ + dhcp->tries = 0; + dhcp_discover(netif); + break; + } +} + +#if LWIP_DHCP_DOES_ACD_CHECK +/** + * Decline an offered lease. + * + * Tell the DHCP server we do not accept the offered address. + * One reason to decline the lease is when we find out the address + * is already in use by another host (through ARP). + * + * @param netif the netif under DHCP control + */ +static err_t +dhcp_decline(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + err_t result; + struct pbuf *p_out; + u16_t options_out_len; + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_decline()\n")); + dhcp_set_state(dhcp, DHCP_STATE_BACKING_OFF); + + /* create and initialize the DHCP message header */ + p_out = dhcp_create_msg(netif, dhcp, DHCP_DECLINE, &options_out_len); + if (p_out != NULL) { + struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_REQUESTED_IP, 4); + options_out_len = dhcp_option_long(options_out_len, msg_out->options, lwip_ntohl(ip4_addr_get_u32(&dhcp->offered_ip_addr))); + + LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_BACKING_OFF, msg_out, DHCP_DECLINE, &options_out_len); + dhcp_option_trailer(options_out_len, msg_out->options, p_out); + + /* per section 4.4.4, broadcast DECLINE messages */ + result = udp_sendto_if_src(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif, IP4_ADDR_ANY); + pbuf_free(p_out); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_decline: BACKING OFF\n")); + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, + ("dhcp_decline: could not allocate DHCP request\n")); + result = ERR_MEM; + } + return result; +} +#endif /* LWIP_DHCP_DOES_ACD_CHECK */ + + +/** + * Start the DHCP process, discover a DHCP server. + * + * @param netif the netif under DHCP control + */ +static err_t +dhcp_discover(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + err_t result = ERR_OK; + u16_t msecs; + u8_t i; + struct pbuf *p_out; + u16_t options_out_len; + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_discover()\n")); + +#if LWIP_DHCP_AUTOIP_COOP + if (dhcp->tries == LWIP_DHCP_AUTOIP_COOP_TRIES) { + autoip_start(netif); + } +#endif /* LWIP_DHCP_AUTOIP_COOP */ + + ip4_addr_set_any(&dhcp->offered_ip_addr); + dhcp_set_state(dhcp, DHCP_STATE_SELECTING); + /* create and initialize the DHCP message header */ + p_out = dhcp_create_msg(netif, dhcp, DHCP_DISCOVER, &options_out_len); + if (p_out != NULL) { + struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_discover: making request\n")); + + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); + options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN(netif)); + + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_PARAMETER_REQUEST_LIST, LWIP_ARRAYSIZE(dhcp_discover_request_options)); + for (i = 0; i < LWIP_ARRAYSIZE(dhcp_discover_request_options); i++) { + options_out_len = dhcp_option_byte(options_out_len, msg_out->options, dhcp_discover_request_options[i]); + } + LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_SELECTING, msg_out, DHCP_DISCOVER, &options_out_len); + dhcp_option_trailer(options_out_len, msg_out->options, p_out); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_discover: sendto(DISCOVER, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER)\n")); + udp_sendto_if_src(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif, IP4_ADDR_ANY); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_discover: deleting()\n")); + pbuf_free(p_out); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_discover: SELECTING\n")); + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_discover: could not allocate DHCP request\n")); + } + + if (dhcp->tries < 255) { + dhcp->tries++; + } + msecs = (u16_t)((dhcp->tries < 6 ? 1 << dhcp->tries : 60) * 1000); + dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_discover(): set request timeout %"U16_F" msecs\n", msecs)); + return result; +} + + +/** + * Bind the interface to the offered IP address. + * + * @param netif network interface to bind to the offered address + */ +static void +dhcp_bind(struct netif *netif) +{ + u32_t timeout; + struct dhcp *dhcp; + ip4_addr_t sn_mask, gw_addr; + LWIP_ERROR("dhcp_bind: netif != NULL", (netif != NULL), return;); + dhcp = netif_dhcp_data(netif); + LWIP_ERROR("dhcp_bind: dhcp != NULL", (dhcp != NULL), return;); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_bind(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); + + /* reset time used of lease */ + dhcp->lease_used = 0; + + if (dhcp->offered_t0_lease != 0xffffffffUL) { + /* set renewal period timer */ + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_bind(): t0 renewal timer %"U32_F" secs\n", dhcp->offered_t0_lease)); + timeout = (dhcp->offered_t0_lease + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS; + if (timeout > 0xffff) { + timeout = 0xffff; + } + dhcp->t0_timeout = (u16_t)timeout; + if (dhcp->t0_timeout == 0) { + dhcp->t0_timeout = 1; + } + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_bind(): set request timeout %"U32_F" msecs\n", dhcp->offered_t0_lease * 1000)); + } + + /* temporary DHCP lease? */ + if (dhcp->offered_t1_renew != 0xffffffffUL) { + /* set renewal period timer */ + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_bind(): t1 renewal timer %"U32_F" secs\n", dhcp->offered_t1_renew)); + timeout = (dhcp->offered_t1_renew + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS; + if (timeout > 0xffff) { + timeout = 0xffff; + } + dhcp->t1_timeout = (u16_t)timeout; + if (dhcp->t1_timeout == 0) { + dhcp->t1_timeout = 1; + } + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_bind(): set request timeout %"U32_F" msecs\n", dhcp->offered_t1_renew * 1000)); + dhcp->t1_renew_time = dhcp->t1_timeout; + } + /* set renewal period timer */ + if (dhcp->offered_t2_rebind != 0xffffffffUL) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_bind(): t2 rebind timer %"U32_F" secs\n", dhcp->offered_t2_rebind)); + timeout = (dhcp->offered_t2_rebind + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS; + if (timeout > 0xffff) { + timeout = 0xffff; + } + dhcp->t2_timeout = (u16_t)timeout; + if (dhcp->t2_timeout == 0) { + dhcp->t2_timeout = 1; + } + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_bind(): set request timeout %"U32_F" msecs\n", dhcp->offered_t2_rebind * 1000)); + dhcp->t2_rebind_time = dhcp->t2_timeout; + } + + /* If we have sub 1 minute lease, t2 and t1 will kick in at the same time. */ + if ((dhcp->t1_timeout >= dhcp->t2_timeout) && (dhcp->t2_timeout > 0)) { + dhcp->t1_timeout = 0; + } + + if (dhcp->subnet_mask_given) { + /* copy offered network mask */ + ip4_addr_copy(sn_mask, dhcp->offered_sn_mask); + } else { + /* subnet mask not given, choose a safe subnet mask given the network class */ + u8_t first_octet = ip4_addr1(&dhcp->offered_ip_addr); + if (first_octet <= 127) { + ip4_addr_set_u32(&sn_mask, PP_HTONL(0xff000000UL)); + } else if (first_octet >= 192) { + ip4_addr_set_u32(&sn_mask, PP_HTONL(0xffffff00UL)); + } else { + ip4_addr_set_u32(&sn_mask, PP_HTONL(0xffff0000UL)); + } + } + + ip4_addr_copy(gw_addr, dhcp->offered_gw_addr); + /* gateway address not given? */ + if (ip4_addr_isany_val(gw_addr)) { + /* copy network address */ + ip4_addr_get_network(&gw_addr, &dhcp->offered_ip_addr, &sn_mask); + /* use first host address on network as gateway */ + ip4_addr_set_u32(&gw_addr, ip4_addr_get_u32(&gw_addr) | PP_HTONL(0x00000001UL)); + } + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_STATE, ("dhcp_bind(): IP: 0x%08"X32_F" SN: 0x%08"X32_F" GW: 0x%08"X32_F"\n", + ip4_addr_get_u32(&dhcp->offered_ip_addr), ip4_addr_get_u32(&sn_mask), ip4_addr_get_u32(&gw_addr))); + /* netif is now bound to DHCP leased address - set this before assigning the address + to ensure the callback can use dhcp_supplied_address() */ + dhcp_set_state(dhcp, DHCP_STATE_BOUND); + + netif_set_addr(netif, &dhcp->offered_ip_addr, &sn_mask, &gw_addr); + /* interface is used by routing now that an address is set */ +} + +/** + * @ingroup dhcp4 + * Renew an existing DHCP lease at the involved DHCP server. + * + * @param netif network interface which must renew its lease + */ +err_t +dhcp_renew(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + err_t result; + u16_t msecs; + u8_t i; + struct pbuf *p_out; + u16_t options_out_len; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_renew()\n")); + dhcp_set_state(dhcp, DHCP_STATE_RENEWING); + + /* create and initialize the DHCP message header */ + p_out = dhcp_create_msg(netif, dhcp, DHCP_REQUEST, &options_out_len); + if (p_out != NULL) { + struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); + options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN(netif)); + + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_PARAMETER_REQUEST_LIST, LWIP_ARRAYSIZE(dhcp_discover_request_options)); + for (i = 0; i < LWIP_ARRAYSIZE(dhcp_discover_request_options); i++) { + options_out_len = dhcp_option_byte(options_out_len, msg_out->options, dhcp_discover_request_options[i]); + } + +#if LWIP_NETIF_HOSTNAME + options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif); +#endif /* LWIP_NETIF_HOSTNAME */ + + LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_RENEWING, msg_out, DHCP_REQUEST, &options_out_len); + dhcp_option_trailer(options_out_len, msg_out->options, p_out); + + result = udp_sendto_if(dhcp_pcb, p_out, &dhcp->server_ip_addr, LWIP_IANA_PORT_DHCP_SERVER, netif); + pbuf_free(p_out); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_renew: RENEWING\n")); + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_renew: could not allocate DHCP request\n")); + result = ERR_MEM; + } + if (dhcp->tries < 255) { + dhcp->tries++; + } + /* back-off on retries, but to a maximum of 20 seconds */ + msecs = (u16_t)(dhcp->tries < 10 ? dhcp->tries * 2000 : 20 * 1000); + dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_renew(): set request timeout %"U16_F" msecs\n", msecs)); + return result; +} + +/** + * Rebind with a DHCP server for an existing DHCP lease. + * + * @param netif network interface which must rebind with a DHCP server + */ +static err_t +dhcp_rebind(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + err_t result; + u16_t msecs; + u8_t i; + struct pbuf *p_out; + u16_t options_out_len; + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_rebind()\n")); + dhcp_set_state(dhcp, DHCP_STATE_REBINDING); + + /* create and initialize the DHCP message header */ + p_out = dhcp_create_msg(netif, dhcp, DHCP_REQUEST, &options_out_len); + if (p_out != NULL) { + struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); + options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN(netif)); + + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_PARAMETER_REQUEST_LIST, LWIP_ARRAYSIZE(dhcp_discover_request_options)); + for (i = 0; i < LWIP_ARRAYSIZE(dhcp_discover_request_options); i++) { + options_out_len = dhcp_option_byte(options_out_len, msg_out->options, dhcp_discover_request_options[i]); + } + +#if LWIP_NETIF_HOSTNAME + options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif); +#endif /* LWIP_NETIF_HOSTNAME */ + + LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_REBINDING, msg_out, DHCP_DISCOVER, &options_out_len); + dhcp_option_trailer(options_out_len, msg_out->options, p_out); + + /* broadcast to server */ + result = udp_sendto_if(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif); + pbuf_free(p_out); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_rebind: REBINDING\n")); + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_rebind: could not allocate DHCP request\n")); + result = ERR_MEM; + } + if (dhcp->tries < 255) { + dhcp->tries++; + } + msecs = (u16_t)(dhcp->tries < 10 ? dhcp->tries * 1000 : 10 * 1000); + dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_rebind(): set request timeout %"U16_F" msecs\n", msecs)); + return result; +} + +/** + * Enter REBOOTING state to verify an existing lease + * + * @param netif network interface which must reboot + */ +static err_t +dhcp_reboot(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + err_t result; + u16_t msecs; + u8_t i; + struct pbuf *p_out; + u16_t options_out_len; + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_reboot()\n")); + dhcp_set_state(dhcp, DHCP_STATE_REBOOTING); + + /* create and initialize the DHCP message header */ + p_out = dhcp_create_msg(netif, dhcp, DHCP_REQUEST, &options_out_len); + if (p_out != NULL) { + struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); + options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN_MIN_REQUIRED); + + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_REQUESTED_IP, 4); + options_out_len = dhcp_option_long(options_out_len, msg_out->options, lwip_ntohl(ip4_addr_get_u32(&dhcp->offered_ip_addr))); + + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_PARAMETER_REQUEST_LIST, LWIP_ARRAYSIZE(dhcp_discover_request_options)); + for (i = 0; i < LWIP_ARRAYSIZE(dhcp_discover_request_options); i++) { + options_out_len = dhcp_option_byte(options_out_len, msg_out->options, dhcp_discover_request_options[i]); + } + +#if LWIP_NETIF_HOSTNAME + options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif); +#endif /* LWIP_NETIF_HOSTNAME */ + + LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_REBOOTING, msg_out, DHCP_REQUEST, &options_out_len); + dhcp_option_trailer(options_out_len, msg_out->options, p_out); + + /* broadcast to server */ + result = udp_sendto_if(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif); + pbuf_free(p_out); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_reboot: REBOOTING\n")); + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_reboot: could not allocate DHCP request\n")); + result = ERR_MEM; + } + if (dhcp->tries < 255) { + dhcp->tries++; + } + msecs = (u16_t)(dhcp->tries < 10 ? dhcp->tries * 1000 : 10 * 1000); + dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_reboot(): set request timeout %"U16_F" msecs\n", msecs)); + return result; +} + +/** + * @ingroup dhcp4 + * Release a DHCP lease and stop DHCP statemachine (and AUTOIP if LWIP_DHCP_AUTOIP_COOP). + * + * @param netif network interface + */ +void +dhcp_release_and_stop(struct netif *netif) +{ + struct dhcp *dhcp = netif_dhcp_data(netif); + ip_addr_t server_ip_addr; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_release_and_stop()\n")); + if (dhcp == NULL) { + return; + } + + /* already off? -> nothing to do */ + if (dhcp->state == DHCP_STATE_OFF) { + return; + } + + ip_addr_copy(server_ip_addr, dhcp->server_ip_addr); + + /* clean old DHCP offer */ + ip_addr_set_zero_ip4(&dhcp->server_ip_addr); + ip4_addr_set_zero(&dhcp->offered_ip_addr); + ip4_addr_set_zero(&dhcp->offered_sn_mask); + ip4_addr_set_zero(&dhcp->offered_gw_addr); +#if LWIP_DHCP_BOOTP_FILE + ip4_addr_set_zero(&dhcp->offered_si_addr); +#endif /* LWIP_DHCP_BOOTP_FILE */ + dhcp->offered_t0_lease = dhcp->offered_t1_renew = dhcp->offered_t2_rebind = 0; + dhcp->t1_renew_time = dhcp->t2_rebind_time = dhcp->lease_used = dhcp->t0_timeout = 0; + + /* send release message when current IP was assigned via DHCP */ + if (dhcp_supplied_address(netif)) { + /* create and initialize the DHCP message header */ + struct pbuf *p_out; + u16_t options_out_len; + p_out = dhcp_create_msg(netif, dhcp, DHCP_RELEASE, &options_out_len); + if (p_out != NULL) { + struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; + options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_SERVER_ID, 4); + options_out_len = dhcp_option_long(options_out_len, msg_out->options, lwip_ntohl(ip4_addr_get_u32(ip_2_ip4(&server_ip_addr)))); + + LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, dhcp->state, msg_out, DHCP_RELEASE, &options_out_len); + dhcp_option_trailer(options_out_len, msg_out->options, p_out); + + udp_sendto_if(dhcp_pcb, p_out, &server_ip_addr, LWIP_IANA_PORT_DHCP_SERVER, netif); + pbuf_free(p_out); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_release: RELEASED, DHCP_STATE_OFF\n")); + } else { + /* sending release failed, but that's not a problem since the correct behaviour of dhcp does not rely on release */ + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_release: could not allocate DHCP request\n")); + } + + /* remove IP address from interface (prevents routing from selecting this interface) */ + netif_set_addr(netif, IP4_ADDR_ANY4, IP4_ADDR_ANY4, IP4_ADDR_ANY4); + } + + dhcp_set_state(dhcp, DHCP_STATE_OFF); + + if (dhcp->pcb_allocated != 0) { + dhcp_dec_pcb_refcount(); /* free DHCP PCB if not needed any more */ + dhcp->pcb_allocated = 0; + } +} + +/** + * @ingroup dhcp4 + * This function calls dhcp_release_and_stop() internally. + * @deprecated Use dhcp_release_and_stop() instead. + */ +err_t +dhcp_release(struct netif *netif) +{ + dhcp_release_and_stop(netif); + return ERR_OK; +} + +/** + * @ingroup dhcp4 + * This function calls dhcp_release_and_stop() internally. + * @deprecated Use dhcp_release_and_stop() instead. + */ +void +dhcp_stop(struct netif *netif) +{ + dhcp_release_and_stop(netif); +} + +/* + * Set the DHCP state of a DHCP client. + * + * If the state changed, reset the number of tries. + */ +static void +dhcp_set_state(struct dhcp *dhcp, u8_t new_state) +{ + if (new_state != dhcp->state) { + dhcp->state = new_state; + dhcp->tries = 0; + dhcp->request_timeout = 0; + } +} + +/* + * Concatenate an option type and length field to the outgoing + * DHCP message. + * + */ +static u16_t +dhcp_option(u16_t options_out_len, u8_t *options, u8_t option_type, u8_t option_len) +{ + LWIP_ASSERT("dhcp_option: options_out_len + 2 + option_len <= DHCP_OPTIONS_LEN", options_out_len + 2U + option_len <= DHCP_OPTIONS_LEN); + options[options_out_len++] = option_type; + options[options_out_len++] = option_len; + return options_out_len; +} +/* + * Concatenate a single byte to the outgoing DHCP message. + * + */ +static u16_t +dhcp_option_byte(u16_t options_out_len, u8_t *options, u8_t value) +{ + LWIP_ASSERT("dhcp_option_byte: options_out_len < DHCP_OPTIONS_LEN", options_out_len < DHCP_OPTIONS_LEN); + options[options_out_len++] = value; + return options_out_len; +} + +static u16_t +dhcp_option_short(u16_t options_out_len, u8_t *options, u16_t value) +{ + LWIP_ASSERT("dhcp_option_short: options_out_len + 2 <= DHCP_OPTIONS_LEN", options_out_len + 2U <= DHCP_OPTIONS_LEN); + options[options_out_len++] = (u8_t)((value & 0xff00U) >> 8); + options[options_out_len++] = (u8_t) (value & 0x00ffU); + return options_out_len; +} + +static u16_t +dhcp_option_long(u16_t options_out_len, u8_t *options, u32_t value) +{ + LWIP_ASSERT("dhcp_option_long: options_out_len + 4 <= DHCP_OPTIONS_LEN", options_out_len + 4U <= DHCP_OPTIONS_LEN); + options[options_out_len++] = (u8_t)((value & 0xff000000UL) >> 24); + options[options_out_len++] = (u8_t)((value & 0x00ff0000UL) >> 16); + options[options_out_len++] = (u8_t)((value & 0x0000ff00UL) >> 8); + options[options_out_len++] = (u8_t)((value & 0x000000ffUL)); + return options_out_len; +} + +#if LWIP_NETIF_HOSTNAME +static u16_t +dhcp_option_hostname(u16_t options_out_len, u8_t *options, struct netif *netif) +{ + if (netif->hostname != NULL) { + size_t namelen = strlen(netif->hostname); + if (namelen > 0) { + size_t len; + const char *p = netif->hostname; + /* Shrink len to available bytes (need 2 bytes for OPTION_HOSTNAME + and 1 byte for trailer) */ + size_t available = DHCP_OPTIONS_LEN - options_out_len - 3; + LWIP_ASSERT("DHCP: hostname is too long!", namelen <= available); + len = LWIP_MIN(namelen, available); + LWIP_ASSERT("DHCP: hostname is too long!", len <= 0xFF); + options_out_len = dhcp_option(options_out_len, options, DHCP_OPTION_HOSTNAME, (u8_t)len); + while (len--) { + options_out_len = dhcp_option_byte(options_out_len, options, *p++); + } + } + } + return options_out_len; +} +#endif /* LWIP_NETIF_HOSTNAME */ + +/** + * Extract the DHCP message and the DHCP options. + * + * Extract the DHCP message and the DHCP options, each into a contiguous + * piece of memory. As a DHCP message is variable sized by its options, + * and also allows overriding some fields for options, the easy approach + * is to first unfold the options into a contiguous piece of memory, and + * use that further on. + * + */ +static err_t +dhcp_parse_reply(struct pbuf *p, struct dhcp *dhcp) +{ + u8_t *options; + u16_t offset; + u16_t offset_max; + u16_t options_offset; + u16_t options_idx; + u16_t options_idx_max; + struct pbuf *q; + int parse_file_as_options = 0; + int parse_sname_as_options = 0; + struct dhcp_msg *msg_in; +#if LWIP_DHCP_BOOTP_FILE + int file_overloaded = 0; +#endif + + LWIP_UNUSED_ARG(dhcp); + + /* clear received options */ + dhcp_clear_all_options(dhcp); + /* check that beginning of dhcp_msg (up to and including chaddr) is in first pbuf */ + if (p->len < DHCP_SNAME_OFS) { + return ERR_BUF; + } + msg_in = (struct dhcp_msg *)p->payload; +#if LWIP_DHCP_BOOTP_FILE + /* clear boot file name */ + dhcp->boot_file_name[0] = 0; +#endif /* LWIP_DHCP_BOOTP_FILE */ + + /* parse options */ + + /* start with options field */ + options_idx = DHCP_OPTIONS_OFS; + /* parse options to the end of the received packet */ + options_idx_max = p->tot_len; +again: + q = p; + options_offset = options_idx; + while ((q != NULL) && (options_idx >= q->len)) { + options_idx = (u16_t)(options_idx - q->len); + options_idx_max = (u16_t)(options_idx_max - q->len); + q = q->next; + } + if (q == NULL) { + return ERR_BUF; + } + offset = options_idx; + offset_max = options_idx_max; + options = (u8_t *)q->payload; + /* at least 1 byte to read and no end marker, then at least 3 bytes to read? */ + while ((q != NULL) && (offset < offset_max) && (options[offset] != DHCP_OPTION_END)) { + u8_t op = options[offset]; + u8_t len; + u8_t decode_len = 0; + int decode_idx = -1; + u16_t val_offset = (u16_t)(offset + 2); + if (val_offset < offset) { + /* overflow */ + return ERR_BUF; + } + /* len byte might be in the next pbuf */ + if ((offset + 1) < q->len) { + len = options[offset + 1]; + } else { + len = (q->next != NULL ? ((u8_t *)q->next->payload)[0] : 0); + } + /* LWIP_DEBUGF(DHCP_DEBUG, ("msg_offset=%"U16_F", q->len=%"U16_F, msg_offset, q->len)); */ + decode_len = len; + switch (op) { + /* case(DHCP_OPTION_END): handled above */ + case (DHCP_OPTION_PAD): + /* special option: no len encoded */ + decode_len = len = 0; + /* will be increased below */ + break; + case (DHCP_OPTION_SUBNET_MASK): + LWIP_DHCP_INPUT_ERROR("len == 4", len == 4, return ERR_VAL;); + decode_idx = DHCP_OPTION_IDX_SUBNET_MASK; + break; + case (DHCP_OPTION_ROUTER): + decode_len = 4; /* only copy the first given router */ + LWIP_DHCP_INPUT_ERROR("len >= decode_len", len >= decode_len, return ERR_VAL;); + decode_idx = DHCP_OPTION_IDX_ROUTER; + break; +#if LWIP_DHCP_PROVIDE_DNS_SERVERS + case (DHCP_OPTION_DNS_SERVER): + /* special case: there might be more than one server */ + LWIP_DHCP_INPUT_ERROR("len %% 4 == 0", len % 4 == 0, return ERR_VAL;); + /* limit number of DNS servers */ + decode_len = LWIP_MIN(len, 4 * DNS_MAX_SERVERS); + LWIP_DHCP_INPUT_ERROR("len >= decode_len", len >= decode_len, return ERR_VAL;); + decode_idx = DHCP_OPTION_IDX_DNS_SERVER; + break; +#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS */ + case (DHCP_OPTION_LEASE_TIME): + LWIP_DHCP_INPUT_ERROR("len == 4", len == 4, return ERR_VAL;); + decode_idx = DHCP_OPTION_IDX_LEASE_TIME; + break; +#if LWIP_DHCP_GET_NTP_SRV + case (DHCP_OPTION_NTP): + /* special case: there might be more than one server */ + LWIP_DHCP_INPUT_ERROR("len %% 4 == 0", len % 4 == 0, return ERR_VAL;); + /* limit number of NTP servers */ + decode_len = LWIP_MIN(len, 4 * LWIP_DHCP_MAX_NTP_SERVERS); + LWIP_DHCP_INPUT_ERROR("len >= decode_len", len >= decode_len, return ERR_VAL;); + decode_idx = DHCP_OPTION_IDX_NTP_SERVER; + break; +#endif /* LWIP_DHCP_GET_NTP_SRV*/ + case (DHCP_OPTION_OVERLOAD): + LWIP_DHCP_INPUT_ERROR("len == 1", len == 1, return ERR_VAL;); + /* decode overload only in options, not in file/sname: invalid packet */ + LWIP_DHCP_INPUT_ERROR("overload in file/sname", options_offset == DHCP_OPTIONS_OFS, return ERR_VAL;); + decode_idx = DHCP_OPTION_IDX_OVERLOAD; + break; + case (DHCP_OPTION_MESSAGE_TYPE): + LWIP_DHCP_INPUT_ERROR("len == 1", len == 1, return ERR_VAL;); + decode_idx = DHCP_OPTION_IDX_MSG_TYPE; + break; + case (DHCP_OPTION_SERVER_ID): + LWIP_DHCP_INPUT_ERROR("len == 4", len == 4, return ERR_VAL;); + decode_idx = DHCP_OPTION_IDX_SERVER_ID; + break; + case (DHCP_OPTION_T1): + LWIP_DHCP_INPUT_ERROR("len == 4", len == 4, return ERR_VAL;); + decode_idx = DHCP_OPTION_IDX_T1; + break; + case (DHCP_OPTION_T2): + LWIP_DHCP_INPUT_ERROR("len == 4", len == 4, return ERR_VAL;); + decode_idx = DHCP_OPTION_IDX_T2; + break; + default: + decode_len = 0; + LWIP_DEBUGF(DHCP_DEBUG, ("skipping option %"U16_F" in options\n", (u16_t)op)); + LWIP_HOOK_DHCP_PARSE_OPTION(ip_current_netif(), dhcp, dhcp->state, msg_in, + dhcp_option_given(dhcp, DHCP_OPTION_IDX_MSG_TYPE) ? (u8_t)dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_MSG_TYPE) : 0, + op, len, q, val_offset); + break; + } + if (op == DHCP_OPTION_PAD) { + offset++; + } else { + if (offset + len + 2 > 0xFFFF) { + /* overflow */ + return ERR_BUF; + } + offset = (u16_t)(offset + len + 2); + if (decode_len > 0) { + u32_t value = 0; + u16_t copy_len; +decode_next: + LWIP_ASSERT("check decode_idx", decode_idx >= 0 && decode_idx < DHCP_OPTION_IDX_MAX); + if (!dhcp_option_given(dhcp, decode_idx)) { + copy_len = LWIP_MIN(decode_len, 4); + if (pbuf_copy_partial(q, &value, copy_len, val_offset) != copy_len) { + return ERR_BUF; + } + if (decode_len > 4) { + /* decode more than one u32_t */ + u16_t next_val_offset; + LWIP_DHCP_INPUT_ERROR("decode_len %% 4 == 0", decode_len % 4 == 0, return ERR_VAL;); + dhcp_got_option(dhcp, decode_idx); + dhcp_set_option_value(dhcp, decode_idx, lwip_htonl(value)); + decode_len = (u8_t)(decode_len - 4); + next_val_offset = (u16_t)(val_offset + 4); + if (next_val_offset < val_offset) { + /* overflow */ + return ERR_BUF; + } + val_offset = next_val_offset; + decode_idx++; + goto decode_next; + } else if (decode_len == 4) { + value = lwip_ntohl(value); + } else { + LWIP_DHCP_INPUT_ERROR("invalid decode_len", decode_len == 1, return ERR_VAL;); + value = ((u8_t *)&value)[0]; + } + dhcp_got_option(dhcp, decode_idx); + dhcp_set_option_value(dhcp, decode_idx, value); + } + } + } + if (offset >= q->len) { + offset = (u16_t)(offset - q->len); + offset_max = (u16_t)(offset_max - q->len); + if (offset < offset_max) { + q = q->next; + LWIP_DHCP_INPUT_ERROR("next pbuf was null", q != NULL, return ERR_VAL;); + options = (u8_t *)q->payload; + } else { + /* We've run out of bytes, probably no end marker. Don't proceed. */ + return ERR_BUF; + } + } + } + /* is this an overloaded message? */ + if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_OVERLOAD)) { + u32_t overload = dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_OVERLOAD); + dhcp_clear_option(dhcp, DHCP_OPTION_IDX_OVERLOAD); + if (overload == DHCP_OVERLOAD_FILE) { + parse_file_as_options = 1; + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("overloaded file field\n")); + } else if (overload == DHCP_OVERLOAD_SNAME) { + parse_sname_as_options = 1; + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("overloaded sname field\n")); + } else if (overload == DHCP_OVERLOAD_SNAME_FILE) { + parse_sname_as_options = 1; + parse_file_as_options = 1; + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("overloaded sname and file field\n")); + } else { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("invalid overload option: %d\n", (int)overload)); + } + } + if (parse_file_as_options) { + /* if both are overloaded, parse file first and then sname (RFC 2131 ch. 4.1) */ + parse_file_as_options = 0; + options_idx = DHCP_FILE_OFS; + options_idx_max = DHCP_FILE_OFS + DHCP_FILE_LEN; +#if LWIP_DHCP_BOOTP_FILE + file_overloaded = 1; +#endif + goto again; + } else if (parse_sname_as_options) { + parse_sname_as_options = 0; + options_idx = DHCP_SNAME_OFS; + options_idx_max = DHCP_SNAME_OFS + DHCP_SNAME_LEN; + goto again; + } +#if LWIP_DHCP_BOOTP_FILE + if (!file_overloaded) { + /* only do this for ACK messages */ + if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_MSG_TYPE) && + (dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_MSG_TYPE) == DHCP_ACK)) + /* copy bootp file name, don't care for sname (server hostname) */ + if (pbuf_copy_partial(p, dhcp->boot_file_name, DHCP_FILE_LEN-1, DHCP_FILE_OFS) != (DHCP_FILE_LEN-1)) { + return ERR_BUF; + } + /* make sure the string is really NULL-terminated */ + dhcp->boot_file_name[DHCP_FILE_LEN-1] = 0; + } +#endif /* LWIP_DHCP_BOOTP_FILE */ + return ERR_OK; +} + +/** + * If an incoming DHCP message is in response to us, then trigger the state machine + */ +static void +dhcp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) +{ + struct netif *netif = ip_current_input_netif(); + struct dhcp *dhcp = netif_dhcp_data(netif); + struct dhcp_msg *reply_msg = (struct dhcp_msg *)p->payload; + u8_t msg_type; + u8_t i; + struct dhcp_msg *msg_in; + + LWIP_UNUSED_ARG(arg); + + /* Caught DHCP message from netif that does not have DHCP enabled? -> not interested */ + if ((dhcp == NULL) || (dhcp->pcb_allocated == 0)) { + goto free_pbuf_and_return; + } + + LWIP_ASSERT("invalid server address type", IP_IS_V4(addr)); + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_recv(pbuf = %p) from DHCP server %"U16_F".%"U16_F".%"U16_F".%"U16_F" port %"U16_F"\n", (void *)p, + ip4_addr1_16(ip_2_ip4(addr)), ip4_addr2_16(ip_2_ip4(addr)), ip4_addr3_16(ip_2_ip4(addr)), ip4_addr4_16(ip_2_ip4(addr)), port)); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("pbuf->len = %"U16_F"\n", p->len)); + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("pbuf->tot_len = %"U16_F"\n", p->tot_len)); + /* prevent warnings about unused arguments */ + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(addr); + LWIP_UNUSED_ARG(port); + + if (p->len < DHCP_MIN_REPLY_LEN) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("DHCP reply message or pbuf too short\n")); + goto free_pbuf_and_return; + } + + if (reply_msg->op != DHCP_BOOTREPLY) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("not a DHCP reply message, but type %"U16_F"\n", (u16_t)reply_msg->op)); + goto free_pbuf_and_return; + } + /* iterate through hardware address and match against DHCP message */ + for (i = 0; i < netif->hwaddr_len && i < LWIP_MIN(DHCP_CHADDR_LEN, NETIF_MAX_HWADDR_LEN); i++) { + if (netif->hwaddr[i] != reply_msg->chaddr[i]) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, + ("netif->hwaddr[%"U16_F"]==%02"X16_F" != reply_msg->chaddr[%"U16_F"]==%02"X16_F"\n", + (u16_t)i, (u16_t)netif->hwaddr[i], (u16_t)i, (u16_t)reply_msg->chaddr[i])); + goto free_pbuf_and_return; + } + } + /* match transaction ID against what we expected */ + if (lwip_ntohl(reply_msg->xid) != dhcp->xid) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, + ("transaction id mismatch reply_msg->xid(%"X32_F")!=dhcp->xid(%"X32_F")\n", lwip_ntohl(reply_msg->xid), dhcp->xid)); + goto free_pbuf_and_return; + } + /* option fields could be unfold? */ + if (dhcp_parse_reply(p, dhcp) != ERR_OK) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, + ("problem unfolding DHCP message - too short on memory?\n")); + goto free_pbuf_and_return; + } + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("searching DHCP_OPTION_MESSAGE_TYPE\n")); + /* obtain pointer to DHCP message type */ + if (!dhcp_option_given(dhcp, DHCP_OPTION_IDX_MSG_TYPE)) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("DHCP_OPTION_MESSAGE_TYPE option not found\n")); + goto free_pbuf_and_return; + } + + msg_in = (struct dhcp_msg *)p->payload; + /* read DHCP message type */ + msg_type = (u8_t)dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_MSG_TYPE); + /* message type is DHCP ACK? */ + if (msg_type == DHCP_ACK) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("DHCP_ACK received\n")); + /* in requesting state or just reconnected to the network? */ + if ((dhcp->state == DHCP_STATE_REQUESTING) || + (dhcp->state == DHCP_STATE_REBOOTING)) { + dhcp_handle_ack(netif, msg_in); +#if LWIP_DHCP_DOES_ACD_CHECK + if ((netif->flags & NETIF_FLAG_ETHARP) != 0) { + /* check if the acknowledged lease address is already in use */ + dhcp_check(netif); + } else { + /* bind interface to the acknowledged lease address */ + dhcp_bind(netif); + } +#else + /* bind interface to the acknowledged lease address */ + dhcp_bind(netif); +#endif + } + /* already bound to the given lease address and using it? */ + else if ((dhcp->state == DHCP_STATE_REBINDING) || + (dhcp->state == DHCP_STATE_RENEWING)) { + dhcp_handle_ack(netif, msg_in); + dhcp_bind(netif); + } + } + /* received a DHCP_NAK in appropriate state? */ + else if ((msg_type == DHCP_NAK) && + ((dhcp->state == DHCP_STATE_REBOOTING) || (dhcp->state == DHCP_STATE_REQUESTING) || + (dhcp->state == DHCP_STATE_REBINDING) || (dhcp->state == DHCP_STATE_RENEWING ))) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("DHCP_NAK received\n")); + dhcp_handle_nak(netif); + } + /* received a DHCP_OFFER in DHCP_STATE_SELECTING state? */ + else if ((msg_type == DHCP_OFFER) && (dhcp->state == DHCP_STATE_SELECTING)) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("DHCP_OFFER received in DHCP_STATE_SELECTING state\n")); + /* remember offered lease */ + dhcp_handle_offer(netif, msg_in); + } + +free_pbuf_and_return: + pbuf_free(p); +} + +/** + * Create a DHCP request, fill in common headers + * + * @param netif the netif under DHCP control + * @param dhcp dhcp control struct + * @param message_type message type of the request + */ +static struct pbuf * +dhcp_create_msg(struct netif *netif, struct dhcp *dhcp, u8_t message_type, u16_t *options_out_len) +{ + u16_t i; + struct pbuf *p_out; + struct dhcp_msg *msg_out; + u16_t options_out_len_loc; + +#ifndef DHCP_GLOBAL_XID + /** default global transaction identifier starting value (easy to match + * with a packet analyser). We simply increment for each new request. + * Predefine DHCP_GLOBAL_XID to a better value or a function call to generate one + * at runtime, any supporting function prototypes can be defined in DHCP_GLOBAL_XID_HEADER */ +#if DHCP_CREATE_RAND_XID && defined(LWIP_RAND) + static u32_t xid; +#else /* DHCP_CREATE_RAND_XID && defined(LWIP_RAND) */ + static u32_t xid = 0xABCD0000; +#endif /* DHCP_CREATE_RAND_XID && defined(LWIP_RAND) */ +#else + if (!xid_initialised) { + xid = DHCP_GLOBAL_XID; + xid_initialised = !xid_initialised; + } +#endif + LWIP_ERROR("dhcp_create_msg: netif != NULL", (netif != NULL), return NULL;); + LWIP_ERROR("dhcp_create_msg: dhcp != NULL", (dhcp != NULL), return NULL;); + p_out = pbuf_alloc(PBUF_TRANSPORT, sizeof(struct dhcp_msg), PBUF_RAM); + if (p_out == NULL) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, + ("dhcp_create_msg(): could not allocate pbuf\n")); + return NULL; + } + LWIP_ASSERT("dhcp_create_msg: check that first pbuf can hold struct dhcp_msg", + (p_out->len >= sizeof(struct dhcp_msg))); + + /* DHCP_REQUEST should reuse 'xid' from DHCPOFFER */ + if ((message_type != DHCP_REQUEST) || (dhcp->state == DHCP_STATE_REBOOTING)) { + /* reuse transaction identifier in retransmissions */ + if (dhcp->tries == 0) { +#if DHCP_CREATE_RAND_XID && defined(LWIP_RAND) + xid = LWIP_RAND(); +#else /* DHCP_CREATE_RAND_XID && defined(LWIP_RAND) */ + xid++; +#endif /* DHCP_CREATE_RAND_XID && defined(LWIP_RAND) */ + } + dhcp->xid = xid; + } + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, + ("transaction id xid(%"X32_F")\n", xid)); + + msg_out = (struct dhcp_msg *)p_out->payload; + memset(msg_out, 0, sizeof(struct dhcp_msg)); + + msg_out->op = DHCP_BOOTREQUEST; + /* @todo: make link layer independent */ + msg_out->htype = LWIP_IANA_HWTYPE_ETHERNET; + msg_out->hlen = netif->hwaddr_len; + msg_out->xid = lwip_htonl(dhcp->xid); + /* we don't need the broadcast flag since we can receive unicast traffic + before being fully configured! */ + /* set ciaddr to netif->ip_addr based on message_type and state */ + if ((message_type == DHCP_INFORM) || (message_type == DHCP_DECLINE) || (message_type == DHCP_RELEASE) || + ((message_type == DHCP_REQUEST) && /* DHCP_STATE_BOUND not used for sending! */ + ((dhcp->state == DHCP_STATE_RENEWING) || dhcp->state == DHCP_STATE_REBINDING))) { + ip4_addr_copy(msg_out->ciaddr, *netif_ip4_addr(netif)); + } + for (i = 0; i < LWIP_MIN(DHCP_CHADDR_LEN, NETIF_MAX_HWADDR_LEN); i++) { + /* copy netif hardware address (padded with zeroes through memset already) */ + msg_out->chaddr[i] = netif->hwaddr[i]; + } + msg_out->cookie = PP_HTONL(DHCP_MAGIC_COOKIE); + /* Add option MESSAGE_TYPE */ + options_out_len_loc = dhcp_option(0, msg_out->options, DHCP_OPTION_MESSAGE_TYPE, DHCP_OPTION_MESSAGE_TYPE_LEN); + options_out_len_loc = dhcp_option_byte(options_out_len_loc, msg_out->options, message_type); + if (options_out_len) { + *options_out_len = options_out_len_loc; + } + return p_out; +} + +/** + * Add a DHCP message trailer + * + * Adds the END option to the DHCP message, and if + * necessary, up to three padding bytes. + */ +static void +dhcp_option_trailer(u16_t options_out_len, u8_t *options, struct pbuf *p_out) +{ + options[options_out_len++] = DHCP_OPTION_END; + /* packet is too small, or not 4 byte aligned? */ + while (((options_out_len < DHCP_MIN_OPTIONS_LEN) || (options_out_len & 3)) && + (options_out_len < DHCP_OPTIONS_LEN)) { + /* add a fill/padding byte */ + options[options_out_len++] = 0; + } + /* shrink the pbuf to the actual content length */ + pbuf_realloc(p_out, (u16_t)(sizeof(struct dhcp_msg) - DHCP_OPTIONS_LEN + options_out_len)); +} + +/** check if DHCP supplied netif->ip_addr + * + * @param netif the netif to check + * @return 1 if DHCP supplied netif->ip_addr (states BOUND or RENEWING), + * 0 otherwise + */ +u8_t +dhcp_supplied_address(const struct netif *netif) +{ + if ((netif != NULL) && (netif_dhcp_data(netif) != NULL)) { + struct dhcp *dhcp = netif_dhcp_data(netif); + return (dhcp->state == DHCP_STATE_BOUND) || (dhcp->state == DHCP_STATE_RENEWING) || + (dhcp->state == DHCP_STATE_REBINDING); + } + return 0; +} + +#endif /* LWIP_IPV4 && LWIP_DHCP */ diff --git a/middleware/lwip/src/core/ipv4/etharp.c b/middleware/lwip/src/core/ipv4/etharp.c new file mode 100644 index 0000000..2717cf7 --- /dev/null +++ b/middleware/lwip/src/core/ipv4/etharp.c @@ -0,0 +1,1251 @@ +/** + * @file + * Address Resolution Protocol module for IP over Ethernet + * + * Functionally, ARP is divided into two parts. The first maps an IP address + * to a physical address when sending a packet, and the second part answers + * requests from other machines for our physical address. + * + * This implementation complies with RFC 826 (Ethernet ARP). It supports + * Gratuitous ARP from RFC3220 (IP Mobility Support for IPv4) section 4.6 + * if an interface calls etharp_gratuitous(our_netif) upon address change. + */ + +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * Copyright (c) 2003-2004 Leon Woestenberg + * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV4 && LWIP_ARP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/etharp.h" +#include "lwip/stats.h" +#include "lwip/snmp.h" +#include "lwip/dhcp.h" +#include "lwip/autoip.h" +#include "lwip/acd.h" +#include "lwip/prot/iana.h" +#include "netif/ethernet.h" + +#include + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif + +/** Re-request a used ARP entry 1 minute before it would expire to prevent + * breaking a steadily used connection because the ARP entry timed out. */ +#define ARP_AGE_REREQUEST_USED_UNICAST (ARP_MAXAGE - 30) +#define ARP_AGE_REREQUEST_USED_BROADCAST (ARP_MAXAGE - 15) + +/** the time an ARP entry stays pending after first request, + * for ARP_TMR_INTERVAL = 1000, this is + * 10 seconds. + * + * @internal Keep this number at least 2, otherwise it might + * run out instantly if the timeout occurs directly after a request. + */ +#define ARP_MAXPENDING 5 + +/** ARP states */ +enum etharp_state { + ETHARP_STATE_EMPTY = 0, + ETHARP_STATE_PENDING, + ETHARP_STATE_STABLE, + ETHARP_STATE_STABLE_REREQUESTING_1, + ETHARP_STATE_STABLE_REREQUESTING_2 +#if ETHARP_SUPPORT_STATIC_ENTRIES + , ETHARP_STATE_STATIC +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ +}; + +struct etharp_entry { +#if ARP_QUEUEING + /** Pointer to queue of pending outgoing packets on this ARP entry. */ + struct etharp_q_entry *q; +#else /* ARP_QUEUEING */ + /** Pointer to a single pending outgoing packet on this ARP entry. */ + struct pbuf *q; +#endif /* ARP_QUEUEING */ + ip4_addr_t ipaddr; + struct netif *netif; + struct eth_addr ethaddr; + u16_t ctime; + u8_t state; +}; + +static struct etharp_entry arp_table[ARP_TABLE_SIZE]; + +#if !LWIP_NETIF_HWADDRHINT +static netif_addr_idx_t etharp_cached_entry; +#endif /* !LWIP_NETIF_HWADDRHINT */ + +/** Try hard to create a new entry - we want the IP address to appear in + the cache (even if this means removing an active entry or so). */ +#define ETHARP_FLAG_TRY_HARD 1 +#define ETHARP_FLAG_FIND_ONLY 2 +#if ETHARP_SUPPORT_STATIC_ENTRIES +#define ETHARP_FLAG_STATIC_ENTRY 4 +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ + +#if LWIP_NETIF_HWADDRHINT +#define ETHARP_SET_ADDRHINT(netif, addrhint) do { if (((netif) != NULL) && ((netif)->hints != NULL)) { \ + (netif)->hints->addr_hint = (addrhint); }} while(0) +#else /* LWIP_NETIF_HWADDRHINT */ +#define ETHARP_SET_ADDRHINT(netif, addrhint) (etharp_cached_entry = (addrhint)) +#endif /* LWIP_NETIF_HWADDRHINT */ + + +/* Check for maximum ARP_TABLE_SIZE */ +#if (ARP_TABLE_SIZE > NETIF_ADDR_IDX_MAX) +#error "ARP_TABLE_SIZE must fit in an s16_t, you have to reduce it in your lwipopts.h" +#endif + + +static err_t etharp_request_dst(struct netif *netif, const ip4_addr_t *ipaddr, const struct eth_addr *hw_dst_addr); +static err_t etharp_raw(struct netif *netif, + const struct eth_addr *ethsrc_addr, const struct eth_addr *ethdst_addr, + const struct eth_addr *hwsrc_addr, const ip4_addr_t *ipsrc_addr, + const struct eth_addr *hwdst_addr, const ip4_addr_t *ipdst_addr, + const u16_t opcode); + +#if ARP_QUEUEING +/** + * Free a complete queue of etharp entries + * + * @param q a queue of etharp_q_entry's to free + */ +static void +free_etharp_q(struct etharp_q_entry *q) +{ + struct etharp_q_entry *r; + LWIP_ASSERT("q != NULL", q != NULL); + while (q) { + r = q; + q = q->next; + LWIP_ASSERT("r->p != NULL", (r->p != NULL)); + pbuf_free(r->p); + memp_free(MEMP_ARP_QUEUE, r); + } +} +#else /* ARP_QUEUEING */ + +/** Compatibility define: free the queued pbuf */ +#define free_etharp_q(q) pbuf_free(q) + +#endif /* ARP_QUEUEING */ + +/** Clean up ARP table entries */ +static void +etharp_free_entry(int i) +{ + /* remove from SNMP ARP index tree */ + mib2_remove_arp_entry(arp_table[i].netif, &arp_table[i].ipaddr); + /* and empty packet queue */ + if (arp_table[i].q != NULL) { + /* remove all queued packets */ + LWIP_DEBUGF(ETHARP_DEBUG, ("etharp_free_entry: freeing entry %"U16_F", packet queue %p.\n", (u16_t)i, (void *)(arp_table[i].q))); + free_etharp_q(arp_table[i].q); + arp_table[i].q = NULL; + } + /* recycle entry for re-use */ + arp_table[i].state = ETHARP_STATE_EMPTY; +#ifdef LWIP_DEBUG + /* for debugging, clean out the complete entry */ + arp_table[i].ctime = 0; + arp_table[i].netif = NULL; + ip4_addr_set_zero(&arp_table[i].ipaddr); + arp_table[i].ethaddr = ethzero; +#endif /* LWIP_DEBUG */ +} + +/** + * Clears expired entries in the ARP table. + * + * This function should be called every ARP_TMR_INTERVAL milliseconds (1 second), + * in order to expire entries in the ARP table. + */ +void +etharp_tmr(void) +{ + int i; + + LWIP_DEBUGF(ETHARP_DEBUG, ("etharp_timer\n")); + /* remove expired entries from the ARP table */ + for (i = 0; i < ARP_TABLE_SIZE; ++i) { + u8_t state = arp_table[i].state; + if (state != ETHARP_STATE_EMPTY +#if ETHARP_SUPPORT_STATIC_ENTRIES + && (state != ETHARP_STATE_STATIC) +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ + ) { + arp_table[i].ctime++; + if ((arp_table[i].ctime >= ARP_MAXAGE) || + ((arp_table[i].state == ETHARP_STATE_PENDING) && + (arp_table[i].ctime >= ARP_MAXPENDING))) { + /* pending or stable entry has become old! */ + LWIP_DEBUGF(ETHARP_DEBUG, ("etharp_timer: expired %s entry %d.\n", + arp_table[i].state >= ETHARP_STATE_STABLE ? "stable" : "pending", i)); + /* clean up entries that have just been expired */ + etharp_free_entry(i); + } else if (arp_table[i].state == ETHARP_STATE_STABLE_REREQUESTING_1) { + /* Don't send more than one request every 2 seconds. */ + arp_table[i].state = ETHARP_STATE_STABLE_REREQUESTING_2; + } else if (arp_table[i].state == ETHARP_STATE_STABLE_REREQUESTING_2) { + /* Reset state to stable, so that the next transmitted packet will + re-send an ARP request. */ + arp_table[i].state = ETHARP_STATE_STABLE; + } else if (arp_table[i].state == ETHARP_STATE_PENDING) { + /* still pending, resend an ARP query */ + etharp_request(arp_table[i].netif, &arp_table[i].ipaddr); + } + } + } +} + +/** + * Search the ARP table for a matching or new entry. + * + * If an IP address is given, return a pending or stable ARP entry that matches + * the address. If no match is found, create a new entry with this address set, + * but in state ETHARP_EMPTY. The caller must check and possibly change the + * state of the returned entry. + * + * If ipaddr is NULL, return a initialized new entry in state ETHARP_EMPTY. + * + * In all cases, attempt to create new entries from an empty entry. If no + * empty entries are available and ETHARP_FLAG_TRY_HARD flag is set, recycle + * old entries. Heuristic choose the least important entry for recycling. + * + * @param ipaddr IP address to find in ARP cache, or to add if not found. + * @param flags See @ref etharp_state + * @param netif netif related to this address (used for NETIF_HWADDRHINT) + * + * @return The ARP entry index that matched or is created, ERR_MEM if no + * entry is found or could be recycled. + */ +static s16_t +etharp_find_entry(const ip4_addr_t *ipaddr, u8_t flags, struct netif *netif) +{ + s16_t old_pending = ARP_TABLE_SIZE, old_stable = ARP_TABLE_SIZE; + s16_t empty = ARP_TABLE_SIZE; + s16_t i = 0; + /* oldest entry with packets on queue */ + s16_t old_queue = ARP_TABLE_SIZE; + /* its age */ + u16_t age_queue = 0, age_pending = 0, age_stable = 0; + + LWIP_UNUSED_ARG(netif); + + /** + * a) do a search through the cache, remember candidates + * b) select candidate entry + * c) create new entry + */ + + /* a) in a single search sweep, do all of this + * 1) remember the first empty entry (if any) + * 2) remember the oldest stable entry (if any) + * 3) remember the oldest pending entry without queued packets (if any) + * 4) remember the oldest pending entry with queued packets (if any) + * 5) search for a matching IP entry, either pending or stable + * until 5 matches, or all entries are searched for. + */ + + for (i = 0; i < ARP_TABLE_SIZE; ++i) { + u8_t state = arp_table[i].state; + /* no empty entry found yet and now we do find one? */ + if ((empty == ARP_TABLE_SIZE) && (state == ETHARP_STATE_EMPTY)) { + LWIP_DEBUGF(ETHARP_DEBUG, ("etharp_find_entry: found empty entry %d\n", (int)i)); + /* remember first empty entry */ + empty = i; + } else if (state != ETHARP_STATE_EMPTY) { + LWIP_ASSERT("state == ETHARP_STATE_PENDING || state >= ETHARP_STATE_STABLE", + state == ETHARP_STATE_PENDING || state >= ETHARP_STATE_STABLE); + /* if given, does IP address match IP address in ARP entry? */ + if (ipaddr && ip4_addr_eq(ipaddr, &arp_table[i].ipaddr) +#if ETHARP_TABLE_MATCH_NETIF + && ((netif == NULL) || (netif == arp_table[i].netif)) +#endif /* ETHARP_TABLE_MATCH_NETIF */ + ) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: found matching entry %d\n", (int)i)); + /* found exact IP address match, simply bail out */ + return i; + } + /* pending entry? */ + if (state == ETHARP_STATE_PENDING) { + /* pending with queued packets? */ + if (arp_table[i].q != NULL) { + if (arp_table[i].ctime >= age_queue) { + old_queue = i; + age_queue = arp_table[i].ctime; + } + } else + /* pending without queued packets? */ + { + if (arp_table[i].ctime >= age_pending) { + old_pending = i; + age_pending = arp_table[i].ctime; + } + } + /* stable entry? */ + } else if (state >= ETHARP_STATE_STABLE) { +#if ETHARP_SUPPORT_STATIC_ENTRIES + /* don't record old_stable for static entries since they never expire */ + if (state < ETHARP_STATE_STATIC) +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ + { + /* remember entry with oldest stable entry in oldest, its age in maxtime */ + if (arp_table[i].ctime >= age_stable) { + old_stable = i; + age_stable = arp_table[i].ctime; + } + } + } + } + } + /* { we have no match } => try to create a new entry */ + + /* don't create new entry, only search? */ + if (((flags & ETHARP_FLAG_FIND_ONLY) != 0) || + /* or no empty entry found and not allowed to recycle? */ + ((empty == ARP_TABLE_SIZE) && ((flags & ETHARP_FLAG_TRY_HARD) == 0))) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: no empty entry found and not allowed to recycle\n")); + return (s16_t)ERR_MEM; + } + + /* b) choose the least destructive entry to recycle: + * 1) empty entry + * 2) oldest stable entry + * 3) oldest pending entry without queued packets + * 4) oldest pending entry with queued packets + * + * { ETHARP_FLAG_TRY_HARD is set at this point } + */ + + /* 1) empty entry available? */ + if (empty < ARP_TABLE_SIZE) { + i = empty; + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: selecting empty entry %d\n", (int)i)); + } else { + /* 2) found recyclable stable entry? */ + if (old_stable < ARP_TABLE_SIZE) { + /* recycle oldest stable*/ + i = old_stable; + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: selecting oldest stable entry %d\n", (int)i)); + /* no queued packets should exist on stable entries */ + LWIP_ASSERT("arp_table[i].q == NULL", arp_table[i].q == NULL); + /* 3) found recyclable pending entry without queued packets? */ + } else if (old_pending < ARP_TABLE_SIZE) { + /* recycle oldest pending */ + i = old_pending; + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: selecting oldest pending entry %d (without queue)\n", (int)i)); + /* 4) found recyclable pending entry with queued packets? */ + } else if (old_queue < ARP_TABLE_SIZE) { + /* recycle oldest pending (queued packets are free in etharp_free_entry) */ + i = old_queue; + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: selecting oldest pending entry %d, freeing packet queue %p\n", (int)i, (void *)(arp_table[i].q))); + /* no empty or recyclable entries found */ + } else { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: no empty or recyclable entries found\n")); + return (s16_t)ERR_MEM; + } + + /* { empty or recyclable entry found } */ + LWIP_ASSERT("i < ARP_TABLE_SIZE", i < ARP_TABLE_SIZE); + etharp_free_entry(i); + } + + LWIP_ASSERT("i < ARP_TABLE_SIZE", i < ARP_TABLE_SIZE); + LWIP_ASSERT("arp_table[i].state == ETHARP_STATE_EMPTY", + arp_table[i].state == ETHARP_STATE_EMPTY); + + /* IP address given? */ + if (ipaddr != NULL) { + /* set IP address */ + ip4_addr_copy(arp_table[i].ipaddr, *ipaddr); + } + arp_table[i].ctime = 0; +#if ETHARP_TABLE_MATCH_NETIF + arp_table[i].netif = netif; +#endif /* ETHARP_TABLE_MATCH_NETIF */ + return (s16_t)i; +} + +/** + * Update (or insert) a IP/MAC address pair in the ARP cache. + * + * If a pending entry is resolved, any queued packets will be sent + * at this point. + * + * @param netif netif related to this entry (used for NETIF_ADDRHINT) + * @param ipaddr IP address of the inserted ARP entry. + * @param ethaddr Ethernet address of the inserted ARP entry. + * @param flags See @ref etharp_state + * + * @return + * - ERR_OK Successfully updated ARP cache. + * - ERR_MEM If we could not add a new ARP entry when ETHARP_FLAG_TRY_HARD was set. + * - ERR_ARG Non-unicast address given, those will not appear in ARP cache. + * + * @see pbuf_free() + */ +static err_t +etharp_update_arp_entry(struct netif *netif, const ip4_addr_t *ipaddr, struct eth_addr *ethaddr, u8_t flags) +{ + s16_t i; + LWIP_ASSERT("netif->hwaddr_len == ETH_HWADDR_LEN", netif->hwaddr_len == ETH_HWADDR_LEN); + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_update_arp_entry: %"U16_F".%"U16_F".%"U16_F".%"U16_F" - %02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F"\n", + ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr), + (u16_t)ethaddr->addr[0], (u16_t)ethaddr->addr[1], (u16_t)ethaddr->addr[2], + (u16_t)ethaddr->addr[3], (u16_t)ethaddr->addr[4], (u16_t)ethaddr->addr[5])); + /* non-unicast address? */ + if (ip4_addr_isany(ipaddr) || + ip4_addr_isbroadcast(ipaddr, netif) || + ip4_addr_ismulticast(ipaddr)) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_update_arp_entry: will not add non-unicast IP address to ARP cache\n")); + return ERR_ARG; + } + /* find or create ARP entry */ + i = etharp_find_entry(ipaddr, flags, netif); + /* bail out if no entry could be found */ + if (i < 0) { + return (err_t)i; + } + +#if ETHARP_SUPPORT_STATIC_ENTRIES + if (flags & ETHARP_FLAG_STATIC_ENTRY) { + /* record static type */ + arp_table[i].state = ETHARP_STATE_STATIC; + } else if (arp_table[i].state == ETHARP_STATE_STATIC) { + /* found entry is a static type, don't overwrite it */ + return ERR_VAL; + } else +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ + { + /* mark it stable */ + arp_table[i].state = ETHARP_STATE_STABLE; + } + + /* record network interface */ + arp_table[i].netif = netif; + /* insert in SNMP ARP index tree */ + mib2_add_arp_entry(netif, &arp_table[i].ipaddr); + + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_update_arp_entry: updating stable entry %"S16_F"\n", i)); + /* update address */ + SMEMCPY(&arp_table[i].ethaddr, ethaddr, ETH_HWADDR_LEN); + /* reset time stamp */ + arp_table[i].ctime = 0; + /* this is where we will send out queued packets! */ +#if ARP_QUEUEING + while (arp_table[i].q != NULL) { + struct pbuf *p; + /* remember remainder of queue */ + struct etharp_q_entry *q = arp_table[i].q; + /* pop first item off the queue */ + arp_table[i].q = q->next; + /* get the packet pointer */ + p = q->p; + /* now queue entry can be freed */ + memp_free(MEMP_ARP_QUEUE, q); +#else /* ARP_QUEUEING */ + if (arp_table[i].q != NULL) { + struct pbuf *p = arp_table[i].q; + arp_table[i].q = NULL; +#endif /* ARP_QUEUEING */ + /* send the queued IP packet */ + ethernet_output(netif, p, (struct eth_addr *)(netif->hwaddr), ethaddr, ETHTYPE_IP); + /* free the queued IP packet */ + pbuf_free(p); + } + return ERR_OK; +} + +#if ETHARP_SUPPORT_STATIC_ENTRIES +/** Add a new static entry to the ARP table. If an entry exists for the + * specified IP address, this entry is overwritten. + * If packets are queued for the specified IP address, they are sent out. + * + * @param ipaddr IP address for the new static entry + * @param ethaddr ethernet address for the new static entry + * @return See return values of etharp_add_static_entry + */ +err_t +etharp_add_static_entry(const ip4_addr_t *ipaddr, struct eth_addr *ethaddr) +{ + struct netif *netif; + LWIP_ASSERT_CORE_LOCKED(); + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_add_static_entry: %"U16_F".%"U16_F".%"U16_F".%"U16_F" - %02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F"\n", + ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr), + (u16_t)ethaddr->addr[0], (u16_t)ethaddr->addr[1], (u16_t)ethaddr->addr[2], + (u16_t)ethaddr->addr[3], (u16_t)ethaddr->addr[4], (u16_t)ethaddr->addr[5])); + + netif = ip4_route(ipaddr); + if (netif == NULL) { + return ERR_RTE; + } + + return etharp_update_arp_entry(netif, ipaddr, ethaddr, ETHARP_FLAG_TRY_HARD | ETHARP_FLAG_STATIC_ENTRY); +} + +/** Remove a static entry from the ARP table previously added with a call to + * etharp_add_static_entry. + * + * @param ipaddr IP address of the static entry to remove + * @return ERR_OK: entry removed + * ERR_MEM: entry wasn't found + * ERR_ARG: entry wasn't a static entry but a dynamic one + */ +err_t +etharp_remove_static_entry(const ip4_addr_t *ipaddr) +{ + s16_t i; + LWIP_ASSERT_CORE_LOCKED(); + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_remove_static_entry: %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr))); + + /* find or create ARP entry */ + i = etharp_find_entry(ipaddr, ETHARP_FLAG_FIND_ONLY, NULL); + /* bail out if no entry could be found */ + if (i < 0) { + return (err_t)i; + } + + if (arp_table[i].state != ETHARP_STATE_STATIC) { + /* entry wasn't a static entry, cannot remove it */ + return ERR_ARG; + } + /* entry found, free it */ + etharp_free_entry(i); + return ERR_OK; +} +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ + +/** + * Remove all ARP table entries of the specified netif. + * + * @param netif points to a network interface + */ +void +etharp_cleanup_netif(struct netif *netif) +{ + int i; + + for (i = 0; i < ARP_TABLE_SIZE; ++i) { + u8_t state = arp_table[i].state; + if ((state != ETHARP_STATE_EMPTY) && (arp_table[i].netif == netif)) { + etharp_free_entry(i); + } + } +} + +/** + * Finds (stable) ethernet/IP address pair from ARP table + * using interface and IP address index. + * @note the addresses in the ARP table are in network order! + * + * @param netif points to interface index + * @param ipaddr points to the (network order) IP address index + * @param eth_ret points to return pointer + * @param ip_ret points to return pointer + * @return table index if found, -1 otherwise + */ +ssize_t +etharp_find_addr(struct netif *netif, const ip4_addr_t *ipaddr, + struct eth_addr **eth_ret, const ip4_addr_t **ip_ret) +{ + s16_t i; + + LWIP_ASSERT("eth_ret != NULL && ip_ret != NULL", + eth_ret != NULL && ip_ret != NULL); + + LWIP_UNUSED_ARG(netif); + + i = etharp_find_entry(ipaddr, ETHARP_FLAG_FIND_ONLY, netif); + if ((i >= 0) && (arp_table[i].state >= ETHARP_STATE_STABLE)) { + *eth_ret = &arp_table[i].ethaddr; + *ip_ret = &arp_table[i].ipaddr; + return i; + } + return -1; +} + +/** + * Possibility to iterate over stable ARP table entries + * + * @param i entry number, 0 to ARP_TABLE_SIZE + * @param ipaddr return value: IP address + * @param netif return value: points to interface + * @param eth_ret return value: ETH address + * @return 1 on valid index, 0 otherwise + */ +int +etharp_get_entry(size_t i, ip4_addr_t **ipaddr, struct netif **netif, struct eth_addr **eth_ret) +{ + LWIP_ASSERT("ipaddr != NULL", ipaddr != NULL); + LWIP_ASSERT("netif != NULL", netif != NULL); + LWIP_ASSERT("eth_ret != NULL", eth_ret != NULL); + + if ((i < ARP_TABLE_SIZE) && (arp_table[i].state >= ETHARP_STATE_STABLE)) { + *ipaddr = &arp_table[i].ipaddr; + *netif = arp_table[i].netif; + *eth_ret = &arp_table[i].ethaddr; + return 1; + } else { + return 0; + } +} + +/** + * Responds to ARP requests to us. Upon ARP replies to us, add entry to cache + * send out queued IP packets. Updates cache with snooped address pairs. + * + * Should be called for incoming ARP packets. The pbuf in the argument + * is freed by this function. + * + * @param p The ARP packet that arrived on netif. Is freed by this function. + * @param netif The lwIP network interface on which the ARP packet pbuf arrived. + * + * @see pbuf_free() + */ +void +etharp_input(struct pbuf *p, struct netif *netif) +{ + struct etharp_hdr *hdr; + /* these are aligned properly, whereas the ARP header fields might not be */ + ip4_addr_t sipaddr, dipaddr; + u8_t for_us, from_us; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("netif != NULL", (netif != NULL), return;); + + hdr = (struct etharp_hdr *)p->payload; + + /* RFC 826 "Packet Reception": */ + if ((hdr->hwtype != PP_HTONS(LWIP_IANA_HWTYPE_ETHERNET)) || + (hdr->hwlen != ETH_HWADDR_LEN) || + (hdr->protolen != sizeof(ip4_addr_t)) || + (hdr->proto != PP_HTONS(ETHTYPE_IP))) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, + ("etharp_input: packet dropped, wrong hw type, hwlen, proto, protolen or ethernet type (%"U16_F"/%"U16_F"/%"U16_F"/%"U16_F")\n", + hdr->hwtype, (u16_t)hdr->hwlen, hdr->proto, (u16_t)hdr->protolen)); + ETHARP_STATS_INC(etharp.proterr); + ETHARP_STATS_INC(etharp.drop); + pbuf_free(p); + return; + } + ETHARP_STATS_INC(etharp.recv); + +#if LWIP_ACD + /* We have to check if a host already has configured our ip address and + * continuously check if there is a host with this IP-address so we can + * detect collisions. + * acd_arp_reply ensures the detection of conflicts. It will handle possible + * defending or retreating and will make sure a new IP address is selected. + * etharp_input does not need to handle packets that originate "from_us". + */ + acd_arp_reply(netif, hdr); +#endif /* LWIP_ACD */ + + /* Copy struct ip4_addr_wordaligned to aligned ip4_addr, to support compilers without + * structure packing (not using structure copy which breaks strict-aliasing rules). */ + IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(&sipaddr, &hdr->sipaddr); + IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(&dipaddr, &hdr->dipaddr); + + /* this interface is not configured? */ + if (ip4_addr_isany_val(*netif_ip4_addr(netif))) { + for_us = 0; + from_us = 0; + } else { + /* ARP packet directed to us? */ + for_us = (u8_t)ip4_addr_eq(&dipaddr, netif_ip4_addr(netif)); + /* ARP packet from us? */ + from_us = (u8_t)ip4_addr_eq(&sipaddr, netif_ip4_addr(netif)); + } + + /* ARP message directed to us? + -> add IP address in ARP cache; assume requester wants to talk to us, + can result in directly sending the queued packets for this host. + ARP message not directed to us? + -> update the source IP address in the cache, if present */ + etharp_update_arp_entry(netif, &sipaddr, &(hdr->shwaddr), + for_us ? ETHARP_FLAG_TRY_HARD : ETHARP_FLAG_FIND_ONLY); + + /* now act on the message itself */ + switch (hdr->opcode) { + /* ARP request? */ + case PP_HTONS(ARP_REQUEST): + /* ARP request. If it asked for our address, we send out a + * reply. In any case, we time-stamp any existing ARP entry, + * and possibly send out an IP packet that was queued on it. */ + + LWIP_DEBUGF (ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_input: incoming ARP request\n")); + /* ARP request for our address? */ + if (for_us && !from_us) { + /* send ARP response */ + etharp_raw(netif, + (struct eth_addr *)netif->hwaddr, &hdr->shwaddr, + (struct eth_addr *)netif->hwaddr, netif_ip4_addr(netif), + &hdr->shwaddr, &sipaddr, + ARP_REPLY); + /* we are not configured? */ + } else if (ip4_addr_isany_val(*netif_ip4_addr(netif))) { + /* { for_us == 0 and netif->ip_addr.addr == 0 } */ + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_input: we are unconfigured, ARP request ignored.\n")); + /* request was not directed to us */ + } else { + /* { for_us == 0 and netif->ip_addr.addr != 0 } */ + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_input: ARP request was not for us.\n")); + } + break; + case PP_HTONS(ARP_REPLY): + /* ARP reply. We already updated the ARP cache earlier. */ + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_input: incoming ARP reply\n")); + break; + default: + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_input: ARP unknown opcode type %"S16_F"\n", lwip_htons(hdr->opcode))); + ETHARP_STATS_INC(etharp.err); + break; + } + /* free ARP packet */ + pbuf_free(p); +} + +/** Just a small helper function that sends a pbuf to an ethernet address + * in the arp_table specified by the index 'arp_idx'. + */ +static err_t +etharp_output_to_arp_index(struct netif *netif, struct pbuf *q, netif_addr_idx_t arp_idx) +{ + LWIP_ASSERT("arp_table[arp_idx].state >= ETHARP_STATE_STABLE", + arp_table[arp_idx].state >= ETHARP_STATE_STABLE); + /* if arp table entry is about to expire: re-request it, + but only if its state is ETHARP_STATE_STABLE to prevent flooding the + network with ARP requests if this address is used frequently. */ + if (arp_table[arp_idx].state == ETHARP_STATE_STABLE) { + if (arp_table[arp_idx].ctime >= ARP_AGE_REREQUEST_USED_BROADCAST) { + /* issue a standard request using broadcast */ + if (etharp_request(netif, &arp_table[arp_idx].ipaddr) == ERR_OK) { + arp_table[arp_idx].state = ETHARP_STATE_STABLE_REREQUESTING_1; + } + } else if (arp_table[arp_idx].ctime >= ARP_AGE_REREQUEST_USED_UNICAST) { + /* issue a unicast request (for 15 seconds) to prevent unnecessary broadcast */ + if (etharp_request_dst(netif, &arp_table[arp_idx].ipaddr, &arp_table[arp_idx].ethaddr) == ERR_OK) { + arp_table[arp_idx].state = ETHARP_STATE_STABLE_REREQUESTING_1; + } + } + } + + return ethernet_output(netif, q, (struct eth_addr *)(netif->hwaddr), &arp_table[arp_idx].ethaddr, ETHTYPE_IP); +} + +/** + * Resolve and fill-in Ethernet address header for outgoing IP packet. + * + * For IP multicast and broadcast, corresponding Ethernet addresses + * are selected and the packet is transmitted on the link. + * + * For unicast addresses, the packet is submitted to etharp_query(). In + * case the IP address is outside the local network, the IP address of + * the gateway is used. + * + * @param netif The lwIP network interface which the IP packet will be sent on. + * @param q The pbuf(s) containing the IP packet to be sent. + * @param ipaddr The IP address of the packet destination. + * + * @return + * - ERR_RTE No route to destination (no gateway to external networks), + * or the return type of either etharp_query() or ethernet_output(). + */ +err_t +etharp_output(struct netif *netif, struct pbuf *q, const ip4_addr_t *ipaddr) +{ + const struct eth_addr *dest; + struct eth_addr mcastaddr; + const ip4_addr_t *dst_addr = ipaddr; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("netif != NULL", netif != NULL); + LWIP_ASSERT("q != NULL", q != NULL); + LWIP_ASSERT("ipaddr != NULL", ipaddr != NULL); + + /* Determine on destination hardware address. Broadcasts and multicasts + * are special, other IP addresses are looked up in the ARP table. */ + + /* broadcast destination IP address? */ + if (ip4_addr_isbroadcast(ipaddr, netif)) { + /* broadcast on Ethernet also */ + dest = (const struct eth_addr *)ðbroadcast; + /* multicast destination IP address? */ + } else if (ip4_addr_ismulticast(ipaddr)) { + /* Hash IP multicast address to MAC address.*/ + mcastaddr.addr[0] = LL_IP4_MULTICAST_ADDR_0; + mcastaddr.addr[1] = LL_IP4_MULTICAST_ADDR_1; + mcastaddr.addr[2] = LL_IP4_MULTICAST_ADDR_2; + mcastaddr.addr[3] = ip4_addr2(ipaddr) & 0x7f; + mcastaddr.addr[4] = ip4_addr3(ipaddr); + mcastaddr.addr[5] = ip4_addr4(ipaddr); + /* destination Ethernet address is multicast */ + dest = &mcastaddr; + /* unicast destination IP address? */ + } else { + netif_addr_idx_t i; + /* outside local network? if so, this can neither be a global broadcast nor + a subnet broadcast. */ + if (!ip4_addr_net_eq(ipaddr, netif_ip4_addr(netif), netif_ip4_netmask(netif)) && + !ip4_addr_islinklocal(ipaddr)) { +#if LWIP_AUTOIP + struct ip_hdr *iphdr = LWIP_ALIGNMENT_CAST(struct ip_hdr *, q->payload); + /* According to RFC 3297, chapter 2.6.2 (Forwarding Rules), a packet with + a link-local source address must always be "directly to its destination + on the same physical link. The host MUST NOT send the packet to any + router for forwarding". */ + if (!ip4_addr_islinklocal(&iphdr->src)) +#endif /* LWIP_AUTOIP */ + { +#ifdef LWIP_HOOK_ETHARP_GET_GW + /* For advanced routing, a single default gateway might not be enough, so get + the IP address of the gateway to handle the current destination address. */ + dst_addr = LWIP_HOOK_ETHARP_GET_GW(netif, ipaddr); + if (dst_addr == NULL) +#endif /* LWIP_HOOK_ETHARP_GET_GW */ + { + /* interface has default gateway? */ + if (!ip4_addr_isany_val(*netif_ip4_gw(netif))) { + /* send to hardware address of default gateway IP address */ + dst_addr = netif_ip4_gw(netif); + /* no default gateway available */ + } else { + /* no route to destination error (default gateway missing) */ + return ERR_RTE; + } + } + } + } +#if LWIP_NETIF_HWADDRHINT + if (netif->hints != NULL) { + /* per-pcb cached entry was given */ + netif_addr_idx_t etharp_cached_entry = netif->hints->addr_hint; + if (etharp_cached_entry < ARP_TABLE_SIZE) { +#endif /* LWIP_NETIF_HWADDRHINT */ + if ((arp_table[etharp_cached_entry].state >= ETHARP_STATE_STABLE) && +#if ETHARP_TABLE_MATCH_NETIF + (arp_table[etharp_cached_entry].netif == netif) && +#endif + (ip4_addr_eq(dst_addr, &arp_table[etharp_cached_entry].ipaddr))) { + /* the per-pcb-cached entry is stable and the right one! */ + ETHARP_STATS_INC(etharp.cachehit); + return etharp_output_to_arp_index(netif, q, etharp_cached_entry); + } +#if LWIP_NETIF_HWADDRHINT + } + } +#endif /* LWIP_NETIF_HWADDRHINT */ + + /* find stable entry: do this here since this is a critical path for + throughput and etharp_find_entry() is kind of slow */ + for (i = 0; i < ARP_TABLE_SIZE; i++) { + if ((arp_table[i].state >= ETHARP_STATE_STABLE) && +#if ETHARP_TABLE_MATCH_NETIF + (arp_table[i].netif == netif) && +#endif + (ip4_addr_eq(dst_addr, &arp_table[i].ipaddr))) { + /* found an existing, stable entry */ + ETHARP_SET_ADDRHINT(netif, i); + return etharp_output_to_arp_index(netif, q, i); + } + } + /* no stable entry found, use the (slower) query function: + queue on destination Ethernet address belonging to ipaddr */ + return etharp_query(netif, dst_addr, q); + } + + /* continuation for multicast/broadcast destinations */ + /* obtain source Ethernet address of the given interface */ + /* send packet directly on the link */ + return ethernet_output(netif, q, (struct eth_addr *)(netif->hwaddr), dest, ETHTYPE_IP); +} + +/** + * Send an ARP request for the given IP address and/or queue a packet. + * + * If the IP address was not yet in the cache, a pending ARP cache entry + * is added and an ARP request is sent for the given address. The packet + * is queued on this entry. + * + * If the IP address was already pending in the cache, a new ARP request + * is sent for the given address. The packet is queued on this entry. + * + * If the IP address was already stable in the cache, and a packet is + * given, it is directly sent and no ARP request is sent out. + * + * If the IP address was already stable in the cache, and no packet is + * given, an ARP request is sent out. + * + * @param netif The lwIP network interface on which ipaddr + * must be queried for. + * @param ipaddr The IP address to be resolved. + * @param q If non-NULL, a pbuf that must be delivered to the IP address. + * q is not freed by this function. + * + * @note q must only be ONE packet, not a packet queue! + * + * @return + * - ERR_BUF Could not make room for Ethernet header. + * - ERR_MEM Hardware address unknown, and no more ARP entries available + * to query for address or queue the packet. + * - ERR_MEM Could not queue packet due to memory shortage. + * - ERR_RTE No route to destination (no gateway to external networks). + * - ERR_ARG Non-unicast address given, those will not appear in ARP cache. + * + */ +err_t +etharp_query(struct netif *netif, const ip4_addr_t *ipaddr, struct pbuf *q) +{ + struct eth_addr *srcaddr = (struct eth_addr *)netif->hwaddr; + err_t result = ERR_MEM; + int is_new_entry = 0; + s16_t i_err; + netif_addr_idx_t i; + + /* non-unicast address? */ + if (ip4_addr_isbroadcast(ipaddr, netif) || + ip4_addr_ismulticast(ipaddr) || + ip4_addr_isany(ipaddr)) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: will not add non-unicast IP address to ARP cache\n")); + return ERR_ARG; + } + + /* find entry in ARP cache, ask to create entry if queueing packet */ + i_err = etharp_find_entry(ipaddr, ETHARP_FLAG_TRY_HARD, netif); + + /* could not find or create entry? */ + if (i_err < 0) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: could not create ARP entry\n")); + if (q) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: packet dropped\n")); + ETHARP_STATS_INC(etharp.memerr); + } + return (err_t)i_err; + } + LWIP_ASSERT("type overflow", (size_t)i_err < NETIF_ADDR_IDX_MAX); + i = (netif_addr_idx_t)i_err; + + /* mark a fresh entry as pending (we just sent a request) */ + if (arp_table[i].state == ETHARP_STATE_EMPTY) { + is_new_entry = 1; + arp_table[i].state = ETHARP_STATE_PENDING; + /* record network interface for re-sending arp request in etharp_tmr */ + arp_table[i].netif = netif; + } + + /* { i is either a STABLE or (new or existing) PENDING entry } */ + LWIP_ASSERT("arp_table[i].state == PENDING or STABLE", + ((arp_table[i].state == ETHARP_STATE_PENDING) || + (arp_table[i].state >= ETHARP_STATE_STABLE))); + + /* do we have a new entry? or an implicit query request? */ + if (is_new_entry || (q == NULL)) { + /* try to resolve it; send out ARP request */ + result = etharp_request(netif, ipaddr); + if (result != ERR_OK) { + /* ARP request couldn't be sent */ + /* We don't re-send arp request in etharp_tmr, but we still queue packets, + since this failure could be temporary, and the next packet calling + etharp_query again could lead to sending the queued packets. */ + } else { + /* ARP request successfully sent */ + if ((arp_table[i].state == ETHARP_STATE_PENDING) && !is_new_entry) { + /* A new ARP request has been sent for a pending entry. Reset the ctime to + not let it expire too fast. */ + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: reset ctime for entry %"S16_F"\n", (s16_t)i)); + arp_table[i].ctime = 0; + } + } + if (q == NULL) { + return result; + } + } + + /* packet given? */ + LWIP_ASSERT("q != NULL", q != NULL); + /* stable entry? */ + if (arp_table[i].state >= ETHARP_STATE_STABLE) { + /* we have a valid IP->Ethernet address mapping */ + ETHARP_SET_ADDRHINT(netif, i); + /* send the packet */ + result = ethernet_output(netif, q, srcaddr, &(arp_table[i].ethaddr), ETHTYPE_IP); + /* pending entry? (either just created or already pending */ + } else if (arp_table[i].state == ETHARP_STATE_PENDING) { + /* entry is still pending, queue the given packet 'q' */ + struct pbuf *p; + int copy_needed = 0; + /* IF q includes a pbuf that must be copied, copy the whole chain into a + * new PBUF_RAM. See the definition of PBUF_NEEDS_COPY for details. */ + p = q; + while (p) { + LWIP_ASSERT("no packet queues allowed!", (p->len != p->tot_len) || (p->next == 0)); + if (PBUF_NEEDS_COPY(p)) { + copy_needed = 1; + break; + } + p = p->next; + } + if (copy_needed) { + /* copy the whole packet into new pbufs */ + p = pbuf_clone(PBUF_LINK, PBUF_RAM, q); + } else { + /* referencing the old pbuf is enough */ + p = q; + pbuf_ref(p); + } + /* packet could be taken over? */ + if (p != NULL) { + /* queue packet ... */ +#if ARP_QUEUEING + struct etharp_q_entry *new_entry; + /* allocate a new arp queue entry */ + new_entry = (struct etharp_q_entry *)memp_malloc(MEMP_ARP_QUEUE); + if (new_entry != NULL) { + unsigned int qlen = 0; + new_entry->next = 0; + new_entry->p = p; + if (arp_table[i].q != NULL) { + /* queue was already existent, append the new entry to the end */ + struct etharp_q_entry *r; + r = arp_table[i].q; + qlen++; + while (r->next != NULL) { + r = r->next; + qlen++; + } + r->next = new_entry; + } else { + /* queue did not exist, first item in queue */ + arp_table[i].q = new_entry; + } +#if ARP_QUEUE_LEN + if (qlen >= ARP_QUEUE_LEN) { + struct etharp_q_entry *old; + old = arp_table[i].q; + arp_table[i].q = arp_table[i].q->next; + pbuf_free(old->p); + memp_free(MEMP_ARP_QUEUE, old); + } +#endif + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: queued packet %p on ARP entry %"U16_F"\n", (void *)q, i)); + result = ERR_OK; + } else { + /* the pool MEMP_ARP_QUEUE is empty */ + pbuf_free(p); + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: could not queue a copy of PBUF_REF packet %p (out of memory)\n", (void *)q)); + result = ERR_MEM; + } +#else /* ARP_QUEUEING */ + /* always queue one packet per ARP request only, freeing a previously queued packet */ + if (arp_table[i].q != NULL) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: dropped previously queued packet %p for ARP entry %"U16_F"\n", (void *)q, (u16_t)i)); + pbuf_free(arp_table[i].q); + } + arp_table[i].q = p; + result = ERR_OK; + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: queued packet %p on ARP entry %"U16_F"\n", (void *)q, (u16_t)i)); +#endif /* ARP_QUEUEING */ + } else { + ETHARP_STATS_INC(etharp.memerr); + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: could not queue a copy of PBUF_REF packet %p (out of memory)\n", (void *)q)); + result = ERR_MEM; + } + } + return result; +} + +/** + * Send a raw ARP packet (opcode and all addresses can be modified) + * + * @param netif the lwip network interface on which to send the ARP packet + * @param ethsrc_addr the source MAC address for the ethernet header + * @param ethdst_addr the destination MAC address for the ethernet header + * @param hwsrc_addr the source MAC address for the ARP protocol header + * @param ipsrc_addr the source IP address for the ARP protocol header + * @param hwdst_addr the destination MAC address for the ARP protocol header + * @param ipdst_addr the destination IP address for the ARP protocol header + * @param opcode the type of the ARP packet + * @return ERR_OK if the ARP packet has been sent + * ERR_MEM if the ARP packet couldn't be allocated + * any other err_t on failure + */ +static err_t +etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr, + const struct eth_addr *ethdst_addr, + const struct eth_addr *hwsrc_addr, const ip4_addr_t *ipsrc_addr, + const struct eth_addr *hwdst_addr, const ip4_addr_t *ipdst_addr, + const u16_t opcode) +{ + struct pbuf *p; + err_t result = ERR_OK; + struct etharp_hdr *hdr; + + LWIP_ASSERT("netif != NULL", netif != NULL); + + /* allocate a pbuf for the outgoing ARP request packet */ + p = pbuf_alloc(PBUF_LINK, SIZEOF_ETHARP_HDR, PBUF_RAM); + /* could allocate a pbuf for an ARP request? */ + if (p == NULL) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, + ("etharp_raw: could not allocate pbuf for ARP request.\n")); + ETHARP_STATS_INC(etharp.memerr); + return ERR_MEM; + } + LWIP_ASSERT("check that first pbuf can hold struct etharp_hdr", + (p->len >= SIZEOF_ETHARP_HDR)); + + hdr = (struct etharp_hdr *)p->payload; + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_raw: sending raw ARP packet.\n")); + hdr->opcode = lwip_htons(opcode); + + LWIP_ASSERT("netif->hwaddr_len must be the same as ETH_HWADDR_LEN for etharp!", + (netif->hwaddr_len == ETH_HWADDR_LEN)); + + /* Write the ARP MAC-Addresses */ + SMEMCPY(&hdr->shwaddr, hwsrc_addr, ETH_HWADDR_LEN); + SMEMCPY(&hdr->dhwaddr, hwdst_addr, ETH_HWADDR_LEN); + /* Copy struct ip4_addr_wordaligned to aligned ip4_addr, to support compilers without + * structure packing. */ + IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T(&hdr->sipaddr, ipsrc_addr); + IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T(&hdr->dipaddr, ipdst_addr); + + hdr->hwtype = PP_HTONS(LWIP_IANA_HWTYPE_ETHERNET); + hdr->proto = PP_HTONS(ETHTYPE_IP); + /* set hwlen and protolen */ + hdr->hwlen = ETH_HWADDR_LEN; + hdr->protolen = sizeof(ip4_addr_t); + + /* send ARP query */ +#if LWIP_AUTOIP + /* If we are using Link-Local, all ARP packets that contain a Link-Local + * 'sender IP address' MUST be sent using link-layer broadcast instead of + * link-layer unicast. (See RFC3927 Section 2.5, last paragraph) */ + if (ip4_addr_islinklocal(ipsrc_addr)) { + ethernet_output(netif, p, ethsrc_addr, ðbroadcast, ETHTYPE_ARP); + } else +#endif /* LWIP_AUTOIP */ + { + ethernet_output(netif, p, ethsrc_addr, ethdst_addr, ETHTYPE_ARP); + } + + ETHARP_STATS_INC(etharp.xmit); + /* free ARP query packet */ + pbuf_free(p); + p = NULL; + /* could not allocate pbuf for ARP request */ + + return result; +} + +/** + * Send an ARP request packet asking for ipaddr to a specific eth address. + * Used to send unicast request to refresh the ARP table just before an entry + * times out + * + * @param netif the lwip network interface on which to send the request + * @param ipaddr the IP address for which to ask + * @param hw_dst_addr the ethernet address to send this packet to + * @return ERR_OK if the request has been sent + * ERR_MEM if the ARP packet couldn't be allocated + * any other err_t on failure + */ +static err_t +etharp_request_dst(struct netif *netif, const ip4_addr_t *ipaddr, const struct eth_addr *hw_dst_addr) +{ + return etharp_raw(netif, (struct eth_addr *)netif->hwaddr, hw_dst_addr, + (struct eth_addr *)netif->hwaddr, netif_ip4_addr(netif), ðzero, + ipaddr, ARP_REQUEST); +} + +/** + * Send an ARP request packet asking for ipaddr. + * + * @param netif the lwip network interface on which to send the request + * @param ipaddr the IP address for which to ask + * @return ERR_OK if the request has been sent + * ERR_MEM if the ARP packet couldn't be allocated + * any other err_t on failure + */ +err_t +etharp_request(struct netif *netif, const ip4_addr_t *ipaddr) +{ + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_request: sending ARP request.\n")); + return etharp_request_dst(netif, ipaddr, ðbroadcast); +} + +#if LWIP_ACD +/** + * Send an ARP request packet probing for an ipaddr. + * Used to send probe messages for address conflict detection. + * + * @param netif the lwip network interface on which to send the request + * @param ipaddr the IP address to probe + * @return ERR_OK if the request has been sent + * ERR_MEM if the ARP packet couldn't be allocated + * any other err_t on failure + */ +err_t +etharp_acd_probe(struct netif *netif, const ip4_addr_t *ipaddr) +{ + return etharp_raw(netif, (struct eth_addr *)netif->hwaddr, ðbroadcast, + (struct eth_addr *)netif->hwaddr, IP4_ADDR_ANY4, ðzero, + ipaddr, ARP_REQUEST); +} + +/** + * Send an ARP request packet announcing an ipaddr. + * Used to send announce messages for address conflict detection. + * + * @param netif the lwip network interface on which to send the request + * @param ipaddr the IP address to announce + * @return ERR_OK if the request has been sent + * ERR_MEM if the ARP packet couldn't be allocated + * any other err_t on failure + */ +err_t +etharp_acd_announce(struct netif *netif, const ip4_addr_t *ipaddr) +{ + return etharp_raw(netif, (struct eth_addr *)netif->hwaddr, ðbroadcast, + (struct eth_addr *)netif->hwaddr, ipaddr, ðzero, + ipaddr, ARP_REQUEST); +} +#endif /* LWIP_ACD */ + +#endif /* LWIP_IPV4 && LWIP_ARP */ diff --git a/middleware/lwip/src/core/ipv4/icmp.c b/middleware/lwip/src/core/ipv4/icmp.c new file mode 100644 index 0000000..8bb15d5 --- /dev/null +++ b/middleware/lwip/src/core/ipv4/icmp.c @@ -0,0 +1,404 @@ +/** + * @file + * ICMP - Internet Control Message Protocol + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +/* Some ICMP messages should be passed to the transport protocols. This + is not implemented. */ + +#include "lwip/opt.h" + +#if LWIP_IPV4 && LWIP_ICMP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/icmp.h" +#include "lwip/inet_chksum.h" +#include "lwip/ip.h" +#include "lwip/def.h" +#include "lwip/stats.h" + +#include + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif + +/** Small optimization: set to 0 if incoming PBUF_POOL pbuf always can be + * used to modify and send a response packet (and to 1 if this is not the case, + * e.g. when link header is stripped off when receiving) */ +#ifndef LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN +#define LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN 1 +#endif /* LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN */ + +/* The amount of data from the original packet to return in a dest-unreachable */ +#define ICMP_DEST_UNREACH_DATASIZE 8 + +static void icmp_send_response(struct pbuf *p, u8_t type, u8_t code); + +/** + * Processes ICMP input packets, called from ip_input(). + * + * Currently only processes icmp echo requests and sends + * out the echo response. + * + * @param p the icmp echo request packet, p->payload pointing to the icmp header + * @param inp the netif on which this packet was received + */ +void +icmp_input(struct pbuf *p, struct netif *inp) +{ + u8_t type; +#ifdef LWIP_DEBUG + u8_t code; +#endif /* LWIP_DEBUG */ + struct icmp_echo_hdr *iecho; + const struct ip_hdr *iphdr_in; + u16_t hlen; + const ip4_addr_t *src; + + ICMP_STATS_INC(icmp.recv); + MIB2_STATS_INC(mib2.icmpinmsgs); + + iphdr_in = ip4_current_header(); + hlen = IPH_HL_BYTES(iphdr_in); + if (hlen < IP_HLEN) { + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: short IP header (%"S16_F" bytes) received\n", hlen)); + goto lenerr; + } + if (p->len < sizeof(u16_t) * 2) { + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: short ICMP (%"U16_F" bytes) received\n", p->tot_len)); + goto lenerr; + } + + type = *((u8_t *)p->payload); +#ifdef LWIP_DEBUG + code = *(((u8_t *)p->payload) + 1); + /* if debug is enabled but debug statement below is somehow disabled: */ + LWIP_UNUSED_ARG(code); +#endif /* LWIP_DEBUG */ + switch (type) { + case ICMP_ER: + /* This is OK, echo reply might have been parsed by a raw PCB + (as obviously, an echo request has been sent, too). */ + MIB2_STATS_INC(mib2.icmpinechoreps); + break; + case ICMP_ECHO: + MIB2_STATS_INC(mib2.icmpinechos); + src = ip4_current_dest_addr(); + /* multicast destination address? */ + if (ip4_addr_ismulticast(ip4_current_dest_addr())) { +#if LWIP_MULTICAST_PING + /* For multicast, use address of receiving interface as source address */ + src = netif_ip4_addr(inp); +#else /* LWIP_MULTICAST_PING */ + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: Not echoing to multicast pings\n")); + goto icmperr; +#endif /* LWIP_MULTICAST_PING */ + } + /* broadcast destination address? */ + if (ip4_addr_isbroadcast(ip4_current_dest_addr(), ip_current_netif())) { +#if LWIP_BROADCAST_PING + /* For broadcast, use address of receiving interface as source address */ + src = netif_ip4_addr(inp); +#else /* LWIP_BROADCAST_PING */ + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: Not echoing to broadcast pings\n")); + goto icmperr; +#endif /* LWIP_BROADCAST_PING */ + } + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: ping\n")); + if (p->tot_len < sizeof(struct icmp_echo_hdr)) { + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: bad ICMP echo received\n")); + goto lenerr; + } +#if CHECKSUM_CHECK_ICMP + IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_CHECK_ICMP) { + if (inet_chksum_pbuf(p) != 0) { + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: checksum failed for received ICMP echo\n")); + pbuf_free(p); + ICMP_STATS_INC(icmp.chkerr); + MIB2_STATS_INC(mib2.icmpinerrors); + return; + } + } +#endif +#if LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN + if (pbuf_add_header(p, hlen + PBUF_LINK_HLEN + PBUF_LINK_ENCAPSULATION_HLEN)) { + /* p is not big enough to contain link headers + * allocate a new one and copy p into it + */ + struct pbuf *r; + u16_t alloc_len = (u16_t)(p->tot_len + hlen); + if (alloc_len < p->tot_len) { + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: allocating new pbuf failed (tot_len overflow)\n")); + goto icmperr; + } + /* allocate new packet buffer with space for link headers */ + r = pbuf_alloc(PBUF_LINK, alloc_len, PBUF_RAM); + if (r == NULL) { + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: allocating new pbuf failed\n")); + goto icmperr; + } + if (r->len < hlen + sizeof(struct icmp_echo_hdr)) { + LWIP_DEBUGF(ICMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("first pbuf cannot hold the ICMP header")); + pbuf_free(r); + goto icmperr; + } + /* copy the ip header */ + MEMCPY(r->payload, iphdr_in, hlen); + /* switch r->payload back to icmp header (cannot fail) */ + if (pbuf_remove_header(r, hlen)) { + LWIP_ASSERT("icmp_input: moving r->payload to icmp header failed", 0); + pbuf_free(r); + goto icmperr; + } + /* copy the rest of the packet without ip header */ + if (pbuf_copy(r, p) != ERR_OK) { + LWIP_DEBUGF(ICMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("icmp_input: copying to new pbuf failed")); + pbuf_free(r); + goto icmperr; + } + /* free the original p */ + pbuf_free(p); + /* we now have an identical copy of p that has room for link headers */ + p = r; + } else { + /* restore p->payload to point to icmp header (cannot fail) */ + if (pbuf_remove_header(p, hlen + PBUF_LINK_HLEN + PBUF_LINK_ENCAPSULATION_HLEN)) { + LWIP_ASSERT("icmp_input: restoring original p->payload failed", 0); + goto icmperr; + } + } +#endif /* LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN */ + /* At this point, all checks are OK. */ + /* We generate an answer by switching the dest and src ip addresses, + * setting the icmp type to ECHO_RESPONSE and updating the checksum. */ + iecho = (struct icmp_echo_hdr *)p->payload; + if (pbuf_add_header(p, hlen)) { + LWIP_DEBUGF(ICMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("Can't move over header in packet")); + } else { + err_t ret; + struct ip_hdr *iphdr = (struct ip_hdr *)p->payload; + ip4_addr_copy(iphdr->src, *src); + ip4_addr_copy(iphdr->dest, *ip4_current_src_addr()); + ICMPH_TYPE_SET(iecho, ICMP_ER); +#if CHECKSUM_GEN_ICMP + IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_GEN_ICMP) { + /* adjust the checksum */ + if (iecho->chksum > PP_HTONS(0xffffU - (ICMP_ECHO << 8))) { + iecho->chksum = (u16_t)(iecho->chksum + PP_HTONS((u16_t)(ICMP_ECHO << 8)) + 1); + } else { + iecho->chksum = (u16_t)(iecho->chksum + PP_HTONS(ICMP_ECHO << 8)); + } + } +#if LWIP_CHECKSUM_CTRL_PER_NETIF + else { + iecho->chksum = 0; + } +#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */ +#else /* CHECKSUM_GEN_ICMP */ + iecho->chksum = 0; +#endif /* CHECKSUM_GEN_ICMP */ + + /* Set the correct TTL and recalculate the header checksum. */ + IPH_TTL_SET(iphdr, ICMP_TTL); + IPH_CHKSUM_SET(iphdr, 0); +#if CHECKSUM_GEN_IP + IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_GEN_IP) { + IPH_CHKSUM_SET(iphdr, inet_chksum(iphdr, hlen)); + } +#endif /* CHECKSUM_GEN_IP */ + + ICMP_STATS_INC(icmp.xmit); + /* increase number of messages attempted to send */ + MIB2_STATS_INC(mib2.icmpoutmsgs); + /* increase number of echo replies attempted to send */ + MIB2_STATS_INC(mib2.icmpoutechoreps); + + /* send an ICMP packet */ + ret = ip4_output_if(p, src, LWIP_IP_HDRINCL, + ICMP_TTL, 0, IP_PROTO_ICMP, inp); + if (ret != ERR_OK) { + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: ip_output_if returned an error: %s\n", lwip_strerr(ret))); + } + } + break; + default: + if (type == ICMP_DUR) { + MIB2_STATS_INC(mib2.icmpindestunreachs); + } else if (type == ICMP_TE) { + MIB2_STATS_INC(mib2.icmpintimeexcds); + } else if (type == ICMP_PP) { + MIB2_STATS_INC(mib2.icmpinparmprobs); + } else if (type == ICMP_SQ) { + MIB2_STATS_INC(mib2.icmpinsrcquenchs); + } else if (type == ICMP_RD) { + MIB2_STATS_INC(mib2.icmpinredirects); + } else if (type == ICMP_TS) { + MIB2_STATS_INC(mib2.icmpintimestamps); + } else if (type == ICMP_TSR) { + MIB2_STATS_INC(mib2.icmpintimestampreps); + } else if (type == ICMP_AM) { + MIB2_STATS_INC(mib2.icmpinaddrmasks); + } else if (type == ICMP_AMR) { + MIB2_STATS_INC(mib2.icmpinaddrmaskreps); + } + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: ICMP type %"S16_F" code %"S16_F" not supported.\n", + (s16_t)type, (s16_t)code)); + ICMP_STATS_INC(icmp.proterr); + ICMP_STATS_INC(icmp.drop); + } + pbuf_free(p); + return; +lenerr: + pbuf_free(p); + ICMP_STATS_INC(icmp.lenerr); + MIB2_STATS_INC(mib2.icmpinerrors); + return; +#if LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN || !LWIP_MULTICAST_PING || !LWIP_BROADCAST_PING +icmperr: + pbuf_free(p); + ICMP_STATS_INC(icmp.err); + MIB2_STATS_INC(mib2.icmpinerrors); + return; +#endif /* LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN || !LWIP_MULTICAST_PING || !LWIP_BROADCAST_PING */ +} + +/** + * Send an icmp 'destination unreachable' packet, called from ip_input() if + * the transport layer protocol is unknown and from udp_input() if the local + * port is not bound. + * + * @param p the input packet for which the 'unreachable' should be sent, + * p->payload pointing to the IP header + * @param t type of the 'unreachable' packet + */ +void +icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t) +{ + MIB2_STATS_INC(mib2.icmpoutdestunreachs); + icmp_send_response(p, ICMP_DUR, t); +} + +#if IP_FORWARD || IP_REASSEMBLY +/** + * Send a 'time exceeded' packet, called from ip_forward() if TTL is 0. + * + * @param p the input packet for which the 'time exceeded' should be sent, + * p->payload pointing to the IP header + * @param t type of the 'time exceeded' packet + */ +void +icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t) +{ + MIB2_STATS_INC(mib2.icmpouttimeexcds); + icmp_send_response(p, ICMP_TE, t); +} + +#endif /* IP_FORWARD || IP_REASSEMBLY */ + +/** + * Send an icmp packet in response to an incoming packet. + * + * @param p the input packet for which the 'unreachable' should be sent, + * p->payload pointing to the IP header + * @param type Type of the ICMP header + * @param code Code of the ICMP header + */ +static void +icmp_send_response(struct pbuf *p, u8_t type, u8_t code) +{ + struct pbuf *q; + struct ip_hdr *iphdr; + struct icmp_hdr *icmphdr; + ip4_addr_t iphdr_src; + struct netif *netif; + + /* increase number of messages attempted to send */ + MIB2_STATS_INC(mib2.icmpoutmsgs); + + /* ICMP header + IP header + 8 bytes of data */ + q = pbuf_alloc(PBUF_IP, sizeof(struct icmp_hdr) + IP_HLEN + ICMP_DEST_UNREACH_DATASIZE, + PBUF_RAM); + if (q == NULL) { + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_time_exceeded: failed to allocate pbuf for ICMP packet.\n")); + MIB2_STATS_INC(mib2.icmpouterrors); + return; + } + LWIP_ASSERT("check that first pbuf can hold icmp message", + (q->len >= (sizeof(struct icmp_echo_hdr) + IP_HLEN + ICMP_DEST_UNREACH_DATASIZE))); + + iphdr = (struct ip_hdr *)p->payload; +#if 0 /* Warnings.*/ + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_time_exceeded from ")); + ip4_addr_debug_print_val(ICMP_DEBUG, iphdr->src); + LWIP_DEBUGF(ICMP_DEBUG, (" to ")); + ip4_addr_debug_print_val(ICMP_DEBUG, iphdr->dest); + LWIP_DEBUGF(ICMP_DEBUG, ("\n")); +#endif + + icmphdr = (struct icmp_hdr *)q->payload; + icmphdr->type = type; + icmphdr->code = code; + icmphdr->data = 0; + + /* copy fields from original packet */ + SMEMCPY((u8_t *)q->payload + sizeof(struct icmp_echo_hdr), (u8_t *)p->payload, + IP_HLEN + ICMP_DEST_UNREACH_DATASIZE); + + ip4_addr_copy(iphdr_src, iphdr->src); +#ifdef LWIP_HOOK_IP4_ROUTE_SRC + { + ip4_addr_t iphdr_dst; + ip4_addr_copy(iphdr_dst, iphdr->dest); + netif = ip4_route_src(&iphdr_dst, &iphdr_src); + } +#else + netif = ip4_route(&iphdr_src); +#endif + if (netif != NULL) { + /* calculate checksum */ + icmphdr->chksum = 0; +#if CHECKSUM_GEN_ICMP + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP) { + icmphdr->chksum = inet_chksum(icmphdr, q->len); + } +#endif + ICMP_STATS_INC(icmp.xmit); + ip4_output_if(q, NULL, &iphdr_src, ICMP_TTL, 0, IP_PROTO_ICMP, netif); + } + pbuf_free(q); +} + +#endif /* LWIP_IPV4 && LWIP_ICMP */ diff --git a/middleware/lwip/src/core/ipv4/igmp.c b/middleware/lwip/src/core/ipv4/igmp.c new file mode 100644 index 0000000..07843cc --- /dev/null +++ b/middleware/lwip/src/core/ipv4/igmp.c @@ -0,0 +1,805 @@ +/** + * @file + * IGMP - Internet Group Management Protocol + * + * @defgroup igmp IGMP + * @ingroup ip4 + * To be called from TCPIP thread + */ + +/* + * Copyright (c) 2002 CITEL Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is a contribution to the lwIP TCP/IP stack. + * The Swedish Institute of Computer Science and Adam Dunkels + * are specifically granted permission to redistribute this + * source code. +*/ + +/*------------------------------------------------------------- +Note 1) +Although the rfc requires V1 AND V2 capability +we will only support v2 since now V1 is very old (August 1989) +V1 can be added if required + +a debug print and statistic have been implemented to +show this up. +------------------------------------------------------------- +------------------------------------------------------------- +Note 2) +A query for a specific group address (as opposed to ALLHOSTS) +has now been implemented as I am unsure if it is required + +a debug print and statistic have been implemented to +show this up. +------------------------------------------------------------- +------------------------------------------------------------- +Note 3) +The router alert rfc 2113 is implemented in outgoing packets +but not checked rigorously incoming +------------------------------------------------------------- +Steve Reynolds +------------------------------------------------------------*/ + +/*----------------------------------------------------------------------------- + * RFC 988 - Host extensions for IP multicasting - V0 + * RFC 1054 - Host extensions for IP multicasting - + * RFC 1112 - Host extensions for IP multicasting - V1 + * RFC 2236 - Internet Group Management Protocol, Version 2 - V2 <- this code is based on this RFC (it's the "de facto" standard) + * RFC 3376 - Internet Group Management Protocol, Version 3 - V3 + * RFC 4604 - Using Internet Group Management Protocol Version 3... - V3+ + * RFC 2113 - IP Router Alert Option - + *----------------------------------------------------------------------------*/ + +/*----------------------------------------------------------------------------- + * Includes + *----------------------------------------------------------------------------*/ + +#include "lwip/opt.h" + +#if LWIP_IPV4 && LWIP_IGMP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/igmp.h" +#include "lwip/debug.h" +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/ip.h" +#include "lwip/inet_chksum.h" +#include "lwip/netif.h" +#include "lwip/stats.h" +#include "lwip/prot/igmp.h" + +#include + +static struct igmp_group *igmp_lookup_group(struct netif *ifp, const ip4_addr_t *addr); +static err_t igmp_remove_group(struct netif *netif, struct igmp_group *group); +static void igmp_timeout(struct netif *netif, struct igmp_group *group); +static void igmp_start_timer(struct igmp_group *group, u8_t max_time); +static void igmp_delaying_member(struct igmp_group *group, u8_t maxresp); +static err_t igmp_ip_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, struct netif *netif); +static void igmp_send(struct netif *netif, struct igmp_group *group, u8_t type); + +static ip4_addr_t allsystems; +static ip4_addr_t allrouters; + +/** + * Initialize the IGMP module + */ +void +igmp_init(void) +{ + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_init: initializing\n")); + + IP4_ADDR(&allsystems, 224, 0, 0, 1); + IP4_ADDR(&allrouters, 224, 0, 0, 2); +} + +/** + * Start IGMP processing on interface + * + * @param netif network interface on which start IGMP processing + */ +err_t +igmp_start(struct netif *netif) +{ + struct igmp_group *group; + + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_start: starting IGMP processing on if %p\n", (void *)netif)); + + group = igmp_lookup_group(netif, &allsystems); + + if (group != NULL) { + group->group_state = IGMP_GROUP_IDLE_MEMBER; + group->use++; + + /* Allow the igmp messages at the MAC level */ + if (netif->igmp_mac_filter != NULL) { + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_start: igmp_mac_filter(ADD ")); + ip4_addr_debug_print_val(IGMP_DEBUG, allsystems); + LWIP_DEBUGF(IGMP_DEBUG, (") on if %p\n", (void *)netif)); + netif->igmp_mac_filter(netif, &allsystems, NETIF_ADD_MAC_FILTER); + } + + return ERR_OK; + } + + return ERR_MEM; +} + +/** + * Stop IGMP processing on interface + * + * @param netif network interface on which stop IGMP processing + */ +err_t +igmp_stop(struct netif *netif) +{ + struct igmp_group *group = netif_igmp_data(netif); + + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_IGMP, NULL); + + while (group != NULL) { + struct igmp_group *next = group->next; /* avoid use-after-free below */ + + /* disable the group at the MAC level */ + if (netif->igmp_mac_filter != NULL) { + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_stop: igmp_mac_filter(DEL ")); + ip4_addr_debug_print_val(IGMP_DEBUG, group->group_address); + LWIP_DEBUGF(IGMP_DEBUG, (") on if %p\n", (void *)netif)); + netif->igmp_mac_filter(netif, &(group->group_address), NETIF_DEL_MAC_FILTER); + } + + /* free group */ + memp_free(MEMP_IGMP_GROUP, group); + + /* move to "next" */ + group = next; + } + return ERR_OK; +} + +/** + * Report IGMP memberships for this interface + * + * @param netif network interface on which report IGMP memberships + */ +void +igmp_report_groups(struct netif *netif) +{ + struct igmp_group *group = netif_igmp_data(netif); + + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_report_groups: sending IGMP reports on if %p\n", (void *)netif)); + + /* Skip the first group in the list, it is always the allsystems group added in igmp_start() */ + if (group != NULL) { + group = group->next; + } + + while (group != NULL) { + igmp_delaying_member(group, IGMP_JOIN_DELAYING_MEMBER_TMR); + group = group->next; + } +} + +/** + * Search for a group in the netif's igmp group list + * + * @param ifp the network interface for which to look + * @param addr the group ip address to search for + * @return a struct igmp_group* if the group has been found, + * NULL if the group wasn't found. + */ +struct igmp_group * +igmp_lookfor_group(struct netif *ifp, const ip4_addr_t *addr) +{ + struct igmp_group *group = netif_igmp_data(ifp); + + while (group != NULL) { + if (ip4_addr_eq(&(group->group_address), addr)) { + return group; + } + group = group->next; + } + + /* to be clearer, we return NULL here instead of + * 'group' (which is also NULL at this point). + */ + return NULL; +} + +/** + * Search for a specific igmp group and create a new one if not found- + * + * @param ifp the network interface for which to look + * @param addr the group ip address to search + * @return a struct igmp_group*, + * NULL on memory error. + */ +static struct igmp_group * +igmp_lookup_group(struct netif *ifp, const ip4_addr_t *addr) +{ + struct igmp_group *group; + struct igmp_group *list_head = netif_igmp_data(ifp); + + /* Search if the group already exists */ + group = igmp_lookfor_group(ifp, addr); + if (group != NULL) { + /* Group already exists. */ + return group; + } + + /* Group doesn't exist yet, create a new one */ + group = (struct igmp_group *)memp_malloc(MEMP_IGMP_GROUP); + if (group != NULL) { + ip4_addr_set(&(group->group_address), addr); + group->timer = 0; /* Not running */ + group->group_state = IGMP_GROUP_NON_MEMBER; + group->last_reporter_flag = 0; + group->use = 0; + + /* Ensure allsystems group is always first in list */ + if (list_head == NULL) { + /* this is the first entry in linked list */ + LWIP_ASSERT("igmp_lookup_group: first group must be allsystems", + (ip4_addr_eq(addr, &allsystems) != 0)); + group->next = NULL; + netif_set_client_data(ifp, LWIP_NETIF_CLIENT_DATA_INDEX_IGMP, group); + } else { + /* append _after_ first entry */ + LWIP_ASSERT("igmp_lookup_group: all except first group must not be allsystems", + (ip4_addr_eq(addr, &allsystems) == 0)); + group->next = list_head->next; + list_head->next = group; + } + } + + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_lookup_group: %sallocated a new group with address ", (group ? "" : "impossible to "))); + ip4_addr_debug_print(IGMP_DEBUG, addr); + LWIP_DEBUGF(IGMP_DEBUG, (" on if %p\n", (void *)ifp)); + + return group; +} + +/** + * Remove a group from netif's igmp group list, but don't free it yet + * + * @param group the group to remove from the netif's igmp group list + * @return ERR_OK if group was removed from the list, an err_t otherwise + */ +static err_t +igmp_remove_group(struct netif *netif, struct igmp_group *group) +{ + err_t err = ERR_OK; + struct igmp_group *tmp_group; + + /* Skip the first group in the list, it is always the allsystems group added in igmp_start() */ + for (tmp_group = netif_igmp_data(netif); tmp_group != NULL; tmp_group = tmp_group->next) { + if (tmp_group->next == group) { + tmp_group->next = group->next; + break; + } + } + /* Group not found in netif's igmp group list */ + if (tmp_group == NULL) { + err = ERR_ARG; + } + + return err; +} + +/** + * Called from ip_input() if a new IGMP packet is received. + * + * @param p received igmp packet, p->payload pointing to the igmp header + * @param inp network interface on which the packet was received + * @param dest destination ip address of the igmp packet + */ +void +igmp_input(struct pbuf *p, struct netif *inp, const ip4_addr_t *dest) +{ + struct igmp_msg *igmp; + struct igmp_group *group; + struct igmp_group *groupref; + + IGMP_STATS_INC(igmp.recv); + + /* Note that the length CAN be greater than 8 but only 8 are used - All are included in the checksum */ + if (p->len < IGMP_MINLEN) { + pbuf_free(p); + IGMP_STATS_INC(igmp.lenerr); + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: length error\n")); + return; + } + +#if 0 /* Disabled cause of compiler warnings.*/ + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: message from ")); + ip4_addr_debug_print_val(IGMP_DEBUG, ip4_current_header()->src); + LWIP_DEBUGF(IGMP_DEBUG, (" to address ")); + ip4_addr_debug_print_val(IGMP_DEBUG, ip4_current_header()->dest); + LWIP_DEBUGF(IGMP_DEBUG, (" on if %p\n", (void *)inp)); +#endif + + /* Now calculate and check the checksum */ + igmp = (struct igmp_msg *)p->payload; + if (inet_chksum(igmp, p->len)) { + pbuf_free(p); + IGMP_STATS_INC(igmp.chkerr); + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: checksum error\n")); + return; + } + + /* Packet is ok so find an existing group */ + group = igmp_lookfor_group(inp, dest); /* use the destination IP address of incoming packet */ + + /* If group can be found or create... */ + if (!group) { + pbuf_free(p); + IGMP_STATS_INC(igmp.drop); + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: IGMP frame not for us\n")); + return; + } + + /* NOW ACT ON THE INCOMING MESSAGE TYPE... */ + switch (igmp->igmp_msgtype) { + case IGMP_MEMB_QUERY: + /* IGMP_MEMB_QUERY to the "all systems" address ? */ + if ((ip4_addr_eq(dest, &allsystems)) && ip4_addr_isany(&igmp->igmp_group_address)) { + /* THIS IS THE GENERAL QUERY */ + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: General IGMP_MEMB_QUERY on \"ALL SYSTEMS\" address (224.0.0.1) [igmp_maxresp=%i]\n", (int)(igmp->igmp_maxresp))); + + if (igmp->igmp_maxresp == 0) { + IGMP_STATS_INC(igmp.rx_v1); + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: got an all hosts query with time== 0 - this is V1 and not implemented - treat as v2\n")); + igmp->igmp_maxresp = IGMP_V1_DELAYING_MEMBER_TMR; + } else { + IGMP_STATS_INC(igmp.rx_general); + } + + groupref = netif_igmp_data(inp); + + /* Do not send messages on the all systems group address! */ + /* Skip the first group in the list, it is always the allsystems group added in igmp_start() */ + if (groupref != NULL) { + groupref = groupref->next; + } + + while (groupref) { + igmp_delaying_member(groupref, igmp->igmp_maxresp); + groupref = groupref->next; + } + } else { + /* IGMP_MEMB_QUERY to a specific group ? */ + if (!ip4_addr_isany(&igmp->igmp_group_address)) { +#if 0 /* Disabled cause of compiler warnings.*/ + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: IGMP_MEMB_QUERY to a specific group ")); + ip4_addr_debug_print_val(IGMP_DEBUG, igmp->igmp_group_address); +#endif + if (ip4_addr_eq(dest, &allsystems)) { + ip4_addr_t groupaddr; + LWIP_DEBUGF(IGMP_DEBUG, (" using \"ALL SYSTEMS\" address (224.0.0.1) [igmp_maxresp=%i]\n", (int)(igmp->igmp_maxresp))); + /* we first need to re-look for the group since we used dest last time */ + ip4_addr_copy(groupaddr, igmp->igmp_group_address); + group = igmp_lookfor_group(inp, &groupaddr); + } else { + LWIP_DEBUGF(IGMP_DEBUG, (" with the group address as destination [igmp_maxresp=%i]\n", (int)(igmp->igmp_maxresp))); + } + + if (group != NULL) { + IGMP_STATS_INC(igmp.rx_group); + igmp_delaying_member(group, igmp->igmp_maxresp); + } else { + IGMP_STATS_INC(igmp.drop); + } + } else { + IGMP_STATS_INC(igmp.proterr); + } + } + break; + case IGMP_V2_MEMB_REPORT: + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: IGMP_V2_MEMB_REPORT\n")); + IGMP_STATS_INC(igmp.rx_report); + if (group->group_state == IGMP_GROUP_DELAYING_MEMBER) { + /* This is on a specific group we have already looked up */ + group->timer = 0; /* stopped */ + group->group_state = IGMP_GROUP_IDLE_MEMBER; + group->last_reporter_flag = 0; + } + break; + default: + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: unexpected msg %d in state %d on group %p on if %p\n", + igmp->igmp_msgtype, group->group_state, (void *)&group, (void *)inp)); + IGMP_STATS_INC(igmp.proterr); + break; + } + + pbuf_free(p); + return; +} + +/** + * @ingroup igmp + * Join a group on one network interface. + * + * @param ifaddr ip address of the network interface which should join a new group + * @param groupaddr the ip address of the group which to join + * @return ERR_OK if group was joined on the netif(s), an err_t otherwise + */ +err_t +igmp_joingroup(const ip4_addr_t *ifaddr, const ip4_addr_t *groupaddr) +{ + err_t err = ERR_VAL; /* no matching interface */ + struct netif *netif; + + LWIP_ASSERT_CORE_LOCKED(); + + /* make sure it is multicast address */ + LWIP_ERROR("igmp_joingroup: attempt to join non-multicast address", ip4_addr_ismulticast(groupaddr), return ERR_VAL;); + LWIP_ERROR("igmp_joingroup: attempt to join allsystems address", (!ip4_addr_eq(groupaddr, &allsystems)), return ERR_VAL;); + + /* loop through netif's */ + NETIF_FOREACH(netif) { + /* Should we join this interface ? */ + if ((netif->flags & NETIF_FLAG_IGMP) && ((ip4_addr_isany(ifaddr) || ip4_addr_eq(netif_ip4_addr(netif), ifaddr)))) { + err = igmp_joingroup_netif(netif, groupaddr); + if (err != ERR_OK) { + /* Return an error even if some network interfaces are joined */ + /** @todo undo any other netif already joined */ + return err; + } + } + } + + return err; +} + +/** + * @ingroup igmp + * Join a group on one network interface. + * + * @param netif the network interface which should join a new group + * @param groupaddr the ip address of the group which to join + * @return ERR_OK if group was joined on the netif, an err_t otherwise + */ +err_t +igmp_joingroup_netif(struct netif *netif, const ip4_addr_t *groupaddr) +{ + struct igmp_group *group; + + LWIP_ASSERT_CORE_LOCKED(); + + /* make sure it is multicast address */ + LWIP_ERROR("igmp_joingroup_netif: attempt to join non-multicast address", ip4_addr_ismulticast(groupaddr), return ERR_VAL;); + LWIP_ERROR("igmp_joingroup_netif: attempt to join allsystems address", (!ip4_addr_eq(groupaddr, &allsystems)), return ERR_VAL;); + + /* make sure it is an igmp-enabled netif */ + LWIP_ERROR("igmp_joingroup_netif: attempt to join on non-IGMP netif", netif->flags & NETIF_FLAG_IGMP, return ERR_VAL;); + + /* find group or create a new one if not found */ + group = igmp_lookup_group(netif, groupaddr); + + if (group != NULL) { + /* This should create a new group, check the state to make sure */ + if (group->group_state != IGMP_GROUP_NON_MEMBER) { + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_joingroup_netif: join to group not in state IGMP_GROUP_NON_MEMBER\n")); + } else { + /* OK - it was new group */ + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_joingroup_netif: join to new group: ")); + ip4_addr_debug_print(IGMP_DEBUG, groupaddr); + LWIP_DEBUGF(IGMP_DEBUG, ("\n")); + + /* If first use of the group, allow the group at the MAC level */ + if ((group->use == 0) && (netif->igmp_mac_filter != NULL)) { + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_joingroup_netif: igmp_mac_filter(ADD ")); + ip4_addr_debug_print(IGMP_DEBUG, groupaddr); + LWIP_DEBUGF(IGMP_DEBUG, (") on if %p\n", (void *)netif)); + netif->igmp_mac_filter(netif, groupaddr, NETIF_ADD_MAC_FILTER); + } + + IGMP_STATS_INC(igmp.tx_join); + igmp_send(netif, group, IGMP_V2_MEMB_REPORT); + + igmp_start_timer(group, IGMP_JOIN_DELAYING_MEMBER_TMR); + + /* Need to work out where this timer comes from */ + group->group_state = IGMP_GROUP_DELAYING_MEMBER; + } + /* Increment group use */ + group->use++; + /* Join on this interface */ + return ERR_OK; + } else { + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_joingroup_netif: Not enough memory to join to group\n")); + return ERR_MEM; + } +} + +/** + * @ingroup igmp + * Leave a group on one network interface. + * + * @param ifaddr ip address of the network interface which should leave a group + * @param groupaddr the ip address of the group which to leave + * @return ERR_OK if group was left on the netif(s), an err_t otherwise + */ +err_t +igmp_leavegroup(const ip4_addr_t *ifaddr, const ip4_addr_t *groupaddr) +{ + err_t err = ERR_VAL; /* no matching interface */ + struct netif *netif; + + LWIP_ASSERT_CORE_LOCKED(); + + /* make sure it is multicast address */ + LWIP_ERROR("igmp_leavegroup: attempt to leave non-multicast address", ip4_addr_ismulticast(groupaddr), return ERR_VAL;); + LWIP_ERROR("igmp_leavegroup: attempt to leave allsystems address", (!ip4_addr_eq(groupaddr, &allsystems)), return ERR_VAL;); + + /* loop through netif's */ + NETIF_FOREACH(netif) { + /* Should we leave this interface ? */ + if ((netif->flags & NETIF_FLAG_IGMP) && ((ip4_addr_isany(ifaddr) || ip4_addr_eq(netif_ip4_addr(netif), ifaddr)))) { + err_t res = igmp_leavegroup_netif(netif, groupaddr); + if (err != ERR_OK) { + /* Store this result if we have not yet gotten a success */ + err = res; + } + } + } + + return err; +} + +/** + * @ingroup igmp + * Leave a group on one network interface. + * + * @param netif the network interface which should leave a group + * @param groupaddr the ip address of the group which to leave + * @return ERR_OK if group was left on the netif, an err_t otherwise + */ +err_t +igmp_leavegroup_netif(struct netif *netif, const ip4_addr_t *groupaddr) +{ + struct igmp_group *group; + + LWIP_ASSERT_CORE_LOCKED(); + + /* make sure it is multicast address */ + LWIP_ERROR("igmp_leavegroup_netif: attempt to leave non-multicast address", ip4_addr_ismulticast(groupaddr), return ERR_VAL;); + LWIP_ERROR("igmp_leavegroup_netif: attempt to leave allsystems address", (!ip4_addr_eq(groupaddr, &allsystems)), return ERR_VAL;); + + /* make sure it is an igmp-enabled netif */ + LWIP_ERROR("igmp_leavegroup_netif: attempt to leave on non-IGMP netif", netif->flags & NETIF_FLAG_IGMP, return ERR_VAL;); + + /* find group */ + group = igmp_lookfor_group(netif, groupaddr); + + if (group != NULL) { + /* Only send a leave if the flag is set according to the state diagram */ + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_leavegroup_netif: Leaving group: ")); + ip4_addr_debug_print(IGMP_DEBUG, groupaddr); + LWIP_DEBUGF(IGMP_DEBUG, ("\n")); + + /* If there is no other use of the group */ + if (group->use <= 1) { + /* Remove the group from the list */ + igmp_remove_group(netif, group); + + /* If we are the last reporter for this group */ + if (group->last_reporter_flag) { + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_leavegroup_netif: sending leaving group\n")); + IGMP_STATS_INC(igmp.tx_leave); + igmp_send(netif, group, IGMP_LEAVE_GROUP); + } + + /* Disable the group at the MAC level */ + if (netif->igmp_mac_filter != NULL) { + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_leavegroup_netif: igmp_mac_filter(DEL ")); + ip4_addr_debug_print(IGMP_DEBUG, groupaddr); + LWIP_DEBUGF(IGMP_DEBUG, (") on if %p\n", (void *)netif)); + netif->igmp_mac_filter(netif, groupaddr, NETIF_DEL_MAC_FILTER); + } + + /* Free group struct */ + memp_free(MEMP_IGMP_GROUP, group); + } else { + /* Decrement group use */ + group->use--; + } + return ERR_OK; + } else { + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_leavegroup_netif: not member of group\n")); + return ERR_VAL; + } +} + +/** + * The igmp timer function (both for NO_SYS=1 and =0) + * Should be called every IGMP_TMR_INTERVAL milliseconds (100 ms is default). + */ +void +igmp_tmr(void) +{ + struct netif *netif; + + NETIF_FOREACH(netif) { + struct igmp_group *group = netif_igmp_data(netif); + + while (group != NULL) { + if (group->timer > 0) { + group->timer--; + if (group->timer == 0) { + igmp_timeout(netif, group); + } + } + group = group->next; + } + } +} + +/** + * Called if a timeout for one group is reached. + * Sends a report for this group. + * + * @param group an igmp_group for which a timeout is reached + */ +static void +igmp_timeout(struct netif *netif, struct igmp_group *group) +{ + /* If the state is IGMP_GROUP_DELAYING_MEMBER then we send a report for this group + (unless it is the allsystems group) */ + if ((group->group_state == IGMP_GROUP_DELAYING_MEMBER) && + (!(ip4_addr_eq(&(group->group_address), &allsystems)))) { + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_timeout: report membership for group with address ")); + ip4_addr_debug_print_val(IGMP_DEBUG, group->group_address); + LWIP_DEBUGF(IGMP_DEBUG, (" on if %p\n", (void *)netif)); + + group->group_state = IGMP_GROUP_IDLE_MEMBER; + + IGMP_STATS_INC(igmp.tx_report); + igmp_send(netif, group, IGMP_V2_MEMB_REPORT); + } +} + +/** + * Start a timer for an igmp group + * + * @param group the igmp_group for which to start a timer + * @param max_time the time in multiples of IGMP_TMR_INTERVAL (decrease with + * every call to igmp_tmr()) + */ +static void +igmp_start_timer(struct igmp_group *group, u8_t max_time) +{ +#ifdef LWIP_RAND + group->timer = (u16_t)(max_time > 2 ? (LWIP_RAND() % max_time) : 1); +#else /* LWIP_RAND */ + /* ATTENTION: use this only if absolutely necessary! */ + group->timer = max_time / 2; +#endif /* LWIP_RAND */ + + if (group->timer == 0) { + group->timer = 1; + } +} + +/** + * Delaying membership report for a group if necessary + * + * @param group the igmp_group for which "delaying" membership report + * @param maxresp query delay + */ +static void +igmp_delaying_member(struct igmp_group *group, u8_t maxresp) +{ + if ((group->group_state == IGMP_GROUP_IDLE_MEMBER) || + ((group->group_state == IGMP_GROUP_DELAYING_MEMBER) && + ((group->timer == 0) || (maxresp < group->timer)))) { + igmp_start_timer(group, maxresp); + group->group_state = IGMP_GROUP_DELAYING_MEMBER; + } +} + + +/** + * Sends an IP packet on a network interface. This function constructs the IP header + * and calculates the IP header checksum. If the source IP address is NULL, + * the IP address of the outgoing network interface is filled in as source address. + * + * @param p the packet to send (p->payload points to the data, e.g. next + protocol header; if dest == LWIP_IP_HDRINCL, p already includes an + IP header and p->payload points to that IP header) + * @param src the source IP address to send from (if src == IP4_ADDR_ANY, the + * IP address of the netif used to send is used as source address) + * @param dest the destination IP address to send the packet to + * @param netif the netif on which to send this packet + * @return ERR_OK if the packet was sent OK + * ERR_BUF if p doesn't have enough space for IP/LINK headers + * returns errors returned by netif->output + */ +static err_t +igmp_ip_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, struct netif *netif) +{ + /* This is the "router alert" option */ + u16_t ra[2]; + ra[0] = PP_HTONS(ROUTER_ALERT); + ra[1] = 0x0000; /* Router shall examine packet */ + IGMP_STATS_INC(igmp.xmit); + return ip4_output_if_opt(p, src, dest, IGMP_TTL, 0, IP_PROTO_IGMP, netif, ra, ROUTER_ALERTLEN); +} + +/** + * Send an igmp packet to a specific group. + * + * @param group the group to which to send the packet + * @param type the type of igmp packet to send + */ +static void +igmp_send(struct netif *netif, struct igmp_group *group, u8_t type) +{ + struct pbuf *p = NULL; + struct igmp_msg *igmp = NULL; + ip4_addr_t src = *IP4_ADDR_ANY4; + ip4_addr_t *dest = NULL; + + /* IP header + "router alert" option + IGMP header */ + p = pbuf_alloc(PBUF_TRANSPORT, IGMP_MINLEN, PBUF_RAM); + + if (p) { + igmp = (struct igmp_msg *)p->payload; + LWIP_ASSERT("igmp_send: check that first pbuf can hold struct igmp_msg", + (p->len >= sizeof(struct igmp_msg))); + ip4_addr_copy(src, *netif_ip4_addr(netif)); + + if (type == IGMP_V2_MEMB_REPORT) { + dest = &(group->group_address); + ip4_addr_copy(igmp->igmp_group_address, group->group_address); + group->last_reporter_flag = 1; /* Remember we were the last to report */ + } else { + if (type == IGMP_LEAVE_GROUP) { + dest = &allrouters; + ip4_addr_copy(igmp->igmp_group_address, group->group_address); + } + } + + if ((type == IGMP_V2_MEMB_REPORT) || (type == IGMP_LEAVE_GROUP)) { + igmp->igmp_msgtype = type; + igmp->igmp_maxresp = 0; + igmp->igmp_checksum = 0; + igmp->igmp_checksum = inet_chksum(igmp, IGMP_MINLEN); + + igmp_ip_output_if(p, &src, dest, netif); + } + + pbuf_free(p); + } else { + LWIP_DEBUGF(IGMP_DEBUG, ("igmp_send: not enough memory for igmp_send\n")); + IGMP_STATS_INC(igmp.memerr); + } +} + +#endif /* LWIP_IPV4 && LWIP_IGMP */ diff --git a/middleware/lwip/src/core/ipv4/ip4.c b/middleware/lwip/src/core/ipv4/ip4.c new file mode 100644 index 0000000..36f3235 --- /dev/null +++ b/middleware/lwip/src/core/ipv4/ip4.c @@ -0,0 +1,1166 @@ +/** + * @file + * This is the IPv4 layer implementation for incoming and outgoing IP traffic. + * + * @see ip_frag.c + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV4 + +#include "lwip/ip.h" +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/ip4_frag.h" +#include "lwip/inet_chksum.h" +#include "lwip/netif.h" +#include "lwip/icmp.h" +#include "lwip/igmp.h" +#include "lwip/priv/raw_priv.h" +#include "lwip/udp.h" +#include "lwip/priv/tcp_priv.h" +#include "lwip/autoip.h" +#include "lwip/stats.h" +#include "lwip/prot/iana.h" + +#include + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif + +/** Set this to 0 in the rare case of wanting to call an extra function to + * generate the IP checksum (in contrast to calculating it on-the-fly). */ +#ifndef LWIP_INLINE_IP_CHKSUM +#if LWIP_CHECKSUM_CTRL_PER_NETIF +#define LWIP_INLINE_IP_CHKSUM 0 +#else /* LWIP_CHECKSUM_CTRL_PER_NETIF */ +#define LWIP_INLINE_IP_CHKSUM 1 +#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */ +#endif + +#if LWIP_INLINE_IP_CHKSUM && CHECKSUM_GEN_IP +#define CHECKSUM_GEN_IP_INLINE 1 +#else +#define CHECKSUM_GEN_IP_INLINE 0 +#endif + +#if LWIP_DHCP || defined(LWIP_IP_ACCEPT_UDP_PORT) +#define IP_ACCEPT_LINK_LAYER_ADDRESSING 1 + +/** Some defines for DHCP to let link-layer-addressed packets through while the + * netif is down. + * To use this in your own application/protocol, define LWIP_IP_ACCEPT_UDP_PORT(port) + * to return 1 if the port is accepted and 0 if the port is not accepted. + */ +#if LWIP_DHCP && defined(LWIP_IP_ACCEPT_UDP_PORT) +/* accept DHCP client port and custom port */ +#define IP_ACCEPT_LINK_LAYER_ADDRESSED_PORT(port) (((port) == PP_NTOHS(LWIP_IANA_PORT_DHCP_CLIENT)) \ + || (LWIP_IP_ACCEPT_UDP_PORT(port))) +#elif defined(LWIP_IP_ACCEPT_UDP_PORT) /* LWIP_DHCP && defined(LWIP_IP_ACCEPT_UDP_PORT) */ +/* accept custom port only */ +#define IP_ACCEPT_LINK_LAYER_ADDRESSED_PORT(port) (LWIP_IP_ACCEPT_UDP_PORT(port)) +#else /* LWIP_DHCP && defined(LWIP_IP_ACCEPT_UDP_PORT) */ +/* accept DHCP client port only */ +#define IP_ACCEPT_LINK_LAYER_ADDRESSED_PORT(port) ((port) == PP_NTOHS(LWIP_IANA_PORT_DHCP_CLIENT)) +#endif /* LWIP_DHCP && defined(LWIP_IP_ACCEPT_UDP_PORT) */ + +#else /* LWIP_DHCP */ +#define IP_ACCEPT_LINK_LAYER_ADDRESSING 0 +#endif /* LWIP_DHCP */ + +/** The IP header ID of the next outgoing IP packet */ +static u16_t ip_id; + +#if LWIP_MULTICAST_TX_OPTIONS +/** The default netif used for multicast */ +static struct netif *ip4_default_multicast_netif; + +/** + * @ingroup ip4 + * Set a default netif for IPv4 multicast. */ +void +ip4_set_default_multicast_netif(struct netif *default_multicast_netif) +{ + ip4_default_multicast_netif = default_multicast_netif; +} +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + +#ifdef LWIP_HOOK_IP4_ROUTE_SRC +/** + * Source based IPv4 routing must be fully implemented in + * LWIP_HOOK_IP4_ROUTE_SRC(). This function only provides the parameters. + */ +struct netif * +ip4_route_src(const ip4_addr_t *src, const ip4_addr_t *dest) +{ + if (src != NULL) { + /* when src==NULL, the hook is called from ip4_route(dest) */ + struct netif *netif = LWIP_HOOK_IP4_ROUTE_SRC(src, dest); + if (netif != NULL) { + return netif; + } + } + return ip4_route(dest); +} +#endif /* LWIP_HOOK_IP4_ROUTE_SRC */ + +/** + * Finds the appropriate network interface for a given IP address. It + * searches the list of network interfaces linearly. A match is found + * if the masked IP address of the network interface equals the masked + * IP address given to the function. + * + * @param dest the destination IP address for which to find the route + * @return the netif on which to send to reach dest + */ +struct netif * +ip4_route(const ip4_addr_t *dest) +{ +#if !LWIP_SINGLE_NETIF + struct netif *netif; + + LWIP_ASSERT_CORE_LOCKED(); + +#if LWIP_MULTICAST_TX_OPTIONS + /* Use administratively selected interface for multicast by default */ + if (ip4_addr_ismulticast(dest) && ip4_default_multicast_netif) { + return ip4_default_multicast_netif; + } +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + + /* bug #54569: in case LWIP_SINGLE_NETIF=1 and LWIP_DEBUGF() disabled, the following loop is optimized away */ + LWIP_UNUSED_ARG(dest); + + /* iterate through netifs */ + NETIF_FOREACH(netif) { + /* is the netif up, does it have a link and a valid address? */ + if (netif_is_up(netif) && netif_is_link_up(netif) && !ip4_addr_isany_val(*netif_ip4_addr(netif))) { + /* network mask matches? */ + if (ip4_addr_net_eq(dest, netif_ip4_addr(netif), netif_ip4_netmask(netif))) { + /* return netif on which to forward IP packet */ + return netif; + } + /* gateway matches on a non broadcast interface? (i.e. peer in a point to point interface) */ + if (((netif->flags & NETIF_FLAG_BROADCAST) == 0) && ip4_addr_eq(dest, netif_ip4_gw(netif))) { + /* return netif on which to forward IP packet */ + return netif; + } + } + } + +#if LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF + /* loopif is disabled, loopback traffic is passed through any netif */ + if (ip4_addr_isloopback(dest)) { + /* don't check for link on loopback traffic */ + if ((netif_default != NULL) && netif_is_up(netif_default)) { + return netif_default; + } + /* default netif is not up, just use any netif for loopback traffic */ + NETIF_FOREACH(netif) { + if (netif_is_up(netif)) { + return netif; + } + } + return NULL; + } +#endif /* LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF */ + +#ifdef LWIP_HOOK_IP4_ROUTE_SRC + netif = LWIP_HOOK_IP4_ROUTE_SRC(NULL, dest); + if (netif != NULL) { + return netif; + } +#elif defined(LWIP_HOOK_IP4_ROUTE) + netif = LWIP_HOOK_IP4_ROUTE(dest); + if (netif != NULL) { + return netif; + } +#endif +#endif /* !LWIP_SINGLE_NETIF */ + + if ((netif_default == NULL) || !netif_is_up(netif_default) || !netif_is_link_up(netif_default) || + ip4_addr_isany_val(*netif_ip4_addr(netif_default)) || ip4_addr_isloopback(dest)) { + /* No matching netif found and default netif is not usable. + If this is not good enough for you, use LWIP_HOOK_IP4_ROUTE() */ + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip4_route: No route to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + ip4_addr1_16(dest), ip4_addr2_16(dest), ip4_addr3_16(dest), ip4_addr4_16(dest))); + IP_STATS_INC(ip.rterr); + MIB2_STATS_INC(mib2.ipoutnoroutes); + return NULL; + } + + return netif_default; +} + +#if IP_FORWARD +/** + * Determine whether an IP address is in a reserved set of addresses + * that may not be forwarded, or whether datagrams to that destination + * may be forwarded. + * @param p the packet to forward + * @return 1: can forward 0: discard + */ +static int +ip4_canforward(struct pbuf *p) +{ + u32_t addr = lwip_htonl(ip4_addr_get_u32(ip4_current_dest_addr())); + +#ifdef LWIP_HOOK_IP4_CANFORWARD + int ret = LWIP_HOOK_IP4_CANFORWARD(p, addr); + if (ret >= 0) { + return ret; + } +#endif /* LWIP_HOOK_IP4_CANFORWARD */ + + if (p->flags & PBUF_FLAG_LLBCAST) { + /* don't route link-layer broadcasts */ + return 0; + } + if ((p->flags & PBUF_FLAG_LLMCAST) || IP_MULTICAST(addr)) { + /* don't route link-layer multicasts (use LWIP_HOOK_IP4_CANFORWARD instead) */ + return 0; + } + if (IP_EXPERIMENTAL(addr)) { + return 0; + } + if (IP_CLASSA(addr)) { + u32_t net = addr & IP_CLASSA_NET; + if ((net == 0) || (net == ((u32_t)IP_LOOPBACKNET << IP_CLASSA_NSHIFT))) { + /* don't route loopback packets */ + return 0; + } + } + return 1; +} + +/** + * Forwards an IP packet. It finds an appropriate route for the + * packet, decrements the TTL value of the packet, adjusts the + * checksum and outputs the packet on the appropriate interface. + * + * @param p the packet to forward (p->payload points to IP header) + * @param iphdr the IP header of the input packet + * @param inp the netif on which this packet was received + */ +static void +ip4_forward(struct pbuf *p, struct ip_hdr *iphdr, struct netif *inp) +{ + struct netif *netif; + + PERF_START; + LWIP_UNUSED_ARG(inp); + + if (!ip4_canforward(p)) { + goto return_noroute; + } + + /* RFC3927 2.7: do not forward link-local addresses */ + if (ip4_addr_islinklocal(ip4_current_dest_addr())) { + LWIP_DEBUGF(IP_DEBUG, ("ip4_forward: not forwarding LLA %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + ip4_addr1_16(ip4_current_dest_addr()), ip4_addr2_16(ip4_current_dest_addr()), + ip4_addr3_16(ip4_current_dest_addr()), ip4_addr4_16(ip4_current_dest_addr()))); + goto return_noroute; + } + + /* Find network interface where to forward this IP packet to. */ + netif = ip4_route_src(ip4_current_src_addr(), ip4_current_dest_addr()); + if (netif == NULL) { + LWIP_DEBUGF(IP_DEBUG, ("ip4_forward: no forwarding route for %"U16_F".%"U16_F".%"U16_F".%"U16_F" found\n", + ip4_addr1_16(ip4_current_dest_addr()), ip4_addr2_16(ip4_current_dest_addr()), + ip4_addr3_16(ip4_current_dest_addr()), ip4_addr4_16(ip4_current_dest_addr()))); + /* @todo: send ICMP_DUR_NET? */ + goto return_noroute; + } +#if !IP_FORWARD_ALLOW_TX_ON_RX_NETIF + /* Do not forward packets onto the same network interface on which + * they arrived. */ + if (netif == inp) { + LWIP_DEBUGF(IP_DEBUG, ("ip4_forward: not bouncing packets back on incoming interface.\n")); + goto return_noroute; + } +#endif /* IP_FORWARD_ALLOW_TX_ON_RX_NETIF */ + + /* decrement TTL */ + IPH_TTL_SET(iphdr, IPH_TTL(iphdr) - 1); + /* send ICMP if TTL == 0 */ + if (IPH_TTL(iphdr) == 0) { + MIB2_STATS_INC(mib2.ipinhdrerrors); +#if LWIP_ICMP + /* Don't send ICMP messages in response to ICMP messages */ + if (IPH_PROTO(iphdr) != IP_PROTO_ICMP) { + icmp_time_exceeded(p, ICMP_TE_TTL); + } +#endif /* LWIP_ICMP */ + return; + } + + /* Incrementally update the IP checksum. */ + if (IPH_CHKSUM(iphdr) >= PP_HTONS(0xffffU - 0x100)) { + IPH_CHKSUM_SET(iphdr, (u16_t)(IPH_CHKSUM(iphdr) + PP_HTONS(0x100) + 1)); + } else { + IPH_CHKSUM_SET(iphdr, (u16_t)(IPH_CHKSUM(iphdr) + PP_HTONS(0x100))); + } + + /* Take care of setting checksums to 0 for checksum offload netifs */ + if (CHECKSUM_GEN_IP || NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_GEN_IP)) { + IPH_CHKSUM_SET(iphdr, 0); + } + switch (IPH_PROTO(iphdr)) { +#if LWIP_UDP +#if LWIP_UDPLITE + case IP_PROTO_UDPLITE: +#endif + case IP_PROTO_UDP: + if (CHECKSUM_GEN_UDP || NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_GEN_UDP)) { + ((struct udp_hdr *)((u8_t *)iphdr + IPH_HL_BYTES(iphdr)))->chksum = 0; + } + break; +#endif +#if LWIP_TCP + case IP_PROTO_TCP: + if (CHECKSUM_GEN_TCP || NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_GEN_TCP)) { + ((struct tcp_hdr *)((u8_t *)iphdr + IPH_HL_BYTES(iphdr)))->chksum = 0; + } + break; +#endif +#if LWIP_ICMP + case IP_PROTO_ICMP: + if (CHECKSUM_GEN_ICMP || NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_GEN_ICMP)) { + ((struct icmp_hdr *)((u8_t *)iphdr + IPH_HL_BYTES(iphdr)))->chksum = 0; + } + break; +#endif + default: + /* there's really nothing to do here other than satisfying 'switch-default' */ + break; + } + + LWIP_DEBUGF(IP_DEBUG, ("ip4_forward: forwarding packet to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + ip4_addr1_16(ip4_current_dest_addr()), ip4_addr2_16(ip4_current_dest_addr()), + ip4_addr3_16(ip4_current_dest_addr()), ip4_addr4_16(ip4_current_dest_addr()))); + + IP_STATS_INC(ip.fw); + MIB2_STATS_INC(mib2.ipforwdatagrams); + IP_STATS_INC(ip.xmit); + + PERF_STOP("ip4_forward"); + /* don't fragment if interface has mtu set to 0 [loopif] */ + if (netif->mtu && (p->tot_len > netif->mtu)) { + if ((IPH_OFFSET(iphdr) & PP_NTOHS(IP_DF)) == 0) { +#if IP_FRAG + ip4_frag(p, netif, ip4_current_dest_addr()); +#else /* IP_FRAG */ + /* @todo: send ICMP Destination Unreachable code 13 "Communication administratively prohibited"? */ +#endif /* IP_FRAG */ + } else { +#if LWIP_ICMP + /* send ICMP Destination Unreachable code 4: "Fragmentation Needed and DF Set" */ + icmp_dest_unreach(p, ICMP_DUR_FRAG); +#endif /* LWIP_ICMP */ + } + return; + } + /* transmit pbuf on chosen interface */ + netif->output(netif, p, ip4_current_dest_addr()); + return; +return_noroute: + MIB2_STATS_INC(mib2.ipoutnoroutes); +} +#endif /* IP_FORWARD */ + +/** Return true if the current input packet should be accepted on this netif */ +static int +ip4_input_accept(struct netif *netif) +{ + LWIP_DEBUGF(IP_DEBUG, ("ip_input: iphdr->dest 0x%"X32_F" netif->ip_addr 0x%"X32_F" (0x%"X32_F", 0x%"X32_F", 0x%"X32_F")\n", + ip4_addr_get_u32(ip4_current_dest_addr()), ip4_addr_get_u32(netif_ip4_addr(netif)), + ip4_addr_get_u32(ip4_current_dest_addr()) & ip4_addr_get_u32(netif_ip4_netmask(netif)), + ip4_addr_get_u32(netif_ip4_addr(netif)) & ip4_addr_get_u32(netif_ip4_netmask(netif)), + ip4_addr_get_u32(ip4_current_dest_addr()) & ~ip4_addr_get_u32(netif_ip4_netmask(netif)))); + + /* interface is up and configured? */ + if ((netif_is_up(netif)) && (!ip4_addr_isany_val(*netif_ip4_addr(netif)))) { + /* unicast to this interface address? */ + if (ip4_addr_eq(ip4_current_dest_addr(), netif_ip4_addr(netif)) || + /* or broadcast on this interface network address? */ + ip4_addr_isbroadcast(ip4_current_dest_addr(), netif) +#if LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF + || (ip4_addr_get_u32(ip4_current_dest_addr()) == PP_HTONL(IPADDR_LOOPBACK)) +#endif /* LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF */ + ) { + LWIP_DEBUGF(IP_DEBUG, ("ip4_input: packet accepted on interface %c%c\n", + netif->name[0], netif->name[1])); + /* accept on this netif */ + return 1; + } +#if LWIP_AUTOIP + /* connections to link-local addresses must persist after changing + the netif's address (RFC3927 ch. 1.9) */ + if (autoip_accept_packet(netif, ip4_current_dest_addr())) { + LWIP_DEBUGF(IP_DEBUG, ("ip4_input: LLA packet accepted on interface %c%c\n", + netif->name[0], netif->name[1])); + /* accept on this netif */ + return 1; + } +#endif /* LWIP_AUTOIP */ + } + return 0; +} + +/** + * This function is called by the network interface device driver when + * an IP packet is received. The function does the basic checks of the + * IP header such as packet size being at least larger than the header + * size etc. If the packet was not destined for us, the packet is + * forwarded (using ip_forward). The IP checksum is always checked. + * + * Finally, the packet is sent to the upper layer protocol input function. + * + * @param p the received IP packet (p->payload points to IP header) + * @param inp the netif on which this packet was received + * @return ERR_OK if the packet was processed (could return ERR_* if it wasn't + * processed, but currently always returns ERR_OK) + */ +err_t +ip4_input(struct pbuf *p, struct netif *inp) +{ + const struct ip_hdr *iphdr; + struct netif *netif; + u16_t iphdr_hlen; + u16_t iphdr_len; +#if IP_ACCEPT_LINK_LAYER_ADDRESSING || LWIP_IGMP + int check_ip_src = 1; +#endif /* IP_ACCEPT_LINK_LAYER_ADDRESSING || LWIP_IGMP */ +#if LWIP_RAW + raw_input_state_t raw_status; +#endif /* LWIP_RAW */ + + LWIP_ASSERT_CORE_LOCKED(); + + IP_STATS_INC(ip.recv); + MIB2_STATS_INC(mib2.ipinreceives); + + /* identify the IP header */ + iphdr = (struct ip_hdr *)p->payload; + if (IPH_V(iphdr) != 4) { + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_WARNING, ("IP packet dropped due to bad version number %"U16_F"\n", (u16_t)IPH_V(iphdr))); + ip4_debug_print(p); + pbuf_free(p); + IP_STATS_INC(ip.err); + IP_STATS_INC(ip.drop); + MIB2_STATS_INC(mib2.ipinhdrerrors); + return ERR_OK; + } + +#ifdef LWIP_HOOK_IP4_INPUT + if (LWIP_HOOK_IP4_INPUT(p, inp)) { + /* the packet has been eaten */ + return ERR_OK; + } +#endif + + /* obtain IP header length in bytes */ + iphdr_hlen = IPH_HL_BYTES(iphdr); + /* obtain ip length in bytes */ + iphdr_len = lwip_ntohs(IPH_LEN(iphdr)); + + /* Trim pbuf. This is especially required for packets < 60 bytes. */ + if (iphdr_len < p->tot_len) { + pbuf_realloc(p, iphdr_len); + } + + /* header length exceeds first pbuf length, or ip length exceeds total pbuf length? */ + if ((iphdr_hlen > p->len) || (iphdr_len > p->tot_len) || (iphdr_hlen < IP_HLEN)) { + if (iphdr_hlen < IP_HLEN) { + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("ip4_input: short IP header (%"U16_F" bytes) received, IP packet dropped\n", iphdr_hlen)); + } + if (iphdr_hlen > p->len) { + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("IP header (len %"U16_F") does not fit in first pbuf (len %"U16_F"), IP packet dropped.\n", + iphdr_hlen, p->len)); + } + if (iphdr_len > p->tot_len) { + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("IP (len %"U16_F") is longer than pbuf (len %"U16_F"), IP packet dropped.\n", + iphdr_len, p->tot_len)); + } + /* free (drop) packet pbufs */ + pbuf_free(p); + IP_STATS_INC(ip.lenerr); + IP_STATS_INC(ip.drop); + MIB2_STATS_INC(mib2.ipindiscards); + return ERR_OK; + } + + /* verify checksum */ +#if CHECKSUM_CHECK_IP + IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_CHECK_IP) { + if (inet_chksum(iphdr, iphdr_hlen) != 0) { + + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("Checksum (0x%"X16_F") failed, IP packet dropped.\n", inet_chksum(iphdr, iphdr_hlen))); + ip4_debug_print(p); + pbuf_free(p); + IP_STATS_INC(ip.chkerr); + IP_STATS_INC(ip.drop); + MIB2_STATS_INC(mib2.ipinhdrerrors); + return ERR_OK; + } + } +#endif + + /* copy IP addresses to aligned ip_addr_t */ + ip_addr_copy_from_ip4(ip_data.current_iphdr_dest, iphdr->dest); + ip_addr_copy_from_ip4(ip_data.current_iphdr_src, iphdr->src); + + /* match packet against an interface, i.e. is this packet for us? */ + if (ip4_addr_ismulticast(ip4_current_dest_addr())) { +#if LWIP_IGMP + if ((inp->flags & NETIF_FLAG_IGMP) && (igmp_lookfor_group(inp, ip4_current_dest_addr()))) { + /* IGMP snooping switches need 0.0.0.0 to be allowed as source address (RFC 4541) */ + ip4_addr_t allsystems; + IP4_ADDR(&allsystems, 224, 0, 0, 1); + if (ip4_addr_eq(ip4_current_dest_addr(), &allsystems) && + ip4_addr_isany(ip4_current_src_addr())) { + check_ip_src = 0; + } + netif = inp; + } else { + netif = NULL; + } +#else /* LWIP_IGMP */ + if ((netif_is_up(inp)) && (!ip4_addr_isany_val(*netif_ip4_addr(inp)))) { + netif = inp; + } else { + netif = NULL; + } +#endif /* LWIP_IGMP */ + } else { + /* start trying with inp. if that's not acceptable, start walking the + list of configured netifs. */ + if (ip4_input_accept(inp)) { + netif = inp; + } else { + netif = NULL; +#if !LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF + /* Packets sent to the loopback address must not be accepted on an + * interface that does not have the loopback address assigned to it, + * unless a non-loopback interface is used for loopback traffic. */ + if (!ip4_addr_isloopback(ip4_current_dest_addr())) +#endif /* !LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF */ + { +#if !LWIP_SINGLE_NETIF + NETIF_FOREACH(netif) { + if (netif == inp) { + /* we checked that before already */ + continue; + } + if (ip4_input_accept(netif)) { + break; + } + } +#endif /* !LWIP_SINGLE_NETIF */ + } + } + } + +#if IP_ACCEPT_LINK_LAYER_ADDRESSING + /* Pass DHCP messages regardless of destination address. DHCP traffic is addressed + * using link layer addressing (such as Ethernet MAC) so we must not filter on IP. + * According to RFC 1542 section 3.1.1, referred by RFC 2131). + * + * If you want to accept private broadcast communication while a netif is down, + * define LWIP_IP_ACCEPT_UDP_PORT(dst_port), e.g.: + * + * #define LWIP_IP_ACCEPT_UDP_PORT(dst_port) ((dst_port) == PP_NTOHS(12345)) + */ + if (netif == NULL) { + /* remote port is DHCP server? */ + if (IPH_PROTO(iphdr) == IP_PROTO_UDP) { + const struct udp_hdr *udphdr = (const struct udp_hdr *)((const u8_t *)iphdr + iphdr_hlen); + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_TRACE, ("ip4_input: UDP packet to DHCP client port %"U16_F"\n", + lwip_ntohs(udphdr->dest))); + if (IP_ACCEPT_LINK_LAYER_ADDRESSED_PORT(udphdr->dest)) { + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_TRACE, ("ip4_input: DHCP packet accepted.\n")); + netif = inp; + check_ip_src = 0; + } + } + } +#endif /* IP_ACCEPT_LINK_LAYER_ADDRESSING */ + + /* broadcast or multicast packet source address? Compliant with RFC 1122: 3.2.1.3 */ +#if LWIP_IGMP || IP_ACCEPT_LINK_LAYER_ADDRESSING + if (check_ip_src +#if IP_ACCEPT_LINK_LAYER_ADDRESSING + /* DHCP servers need 0.0.0.0 to be allowed as source address (RFC 1.1.2.2: 3.2.1.3/a) */ + && !ip4_addr_isany_val(*ip4_current_src_addr()) +#endif /* IP_ACCEPT_LINK_LAYER_ADDRESSING */ + ) +#endif /* LWIP_IGMP || IP_ACCEPT_LINK_LAYER_ADDRESSING */ + { + if ((ip4_addr_isbroadcast(ip4_current_src_addr(), inp)) || + (ip4_addr_ismulticast(ip4_current_src_addr()))) { + /* packet source is not valid */ + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("ip4_input: packet source is not valid.\n")); + /* free (drop) packet pbufs */ + pbuf_free(p); + IP_STATS_INC(ip.drop); + MIB2_STATS_INC(mib2.ipinaddrerrors); + MIB2_STATS_INC(mib2.ipindiscards); + return ERR_OK; + } + } + + /* packet not for us? */ + if (netif == NULL) { + /* packet not for us, route or discard */ + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_TRACE, ("ip4_input: packet not for us.\n")); +#if IP_FORWARD + /* non-broadcast packet? */ + if (!ip4_addr_isbroadcast(ip4_current_dest_addr(), inp)) { + /* try to forward IP packet on (other) interfaces */ + ip4_forward(p, (struct ip_hdr *)p->payload, inp); + } else +#endif /* IP_FORWARD */ + { + IP_STATS_INC(ip.drop); + MIB2_STATS_INC(mib2.ipinaddrerrors); + MIB2_STATS_INC(mib2.ipindiscards); + } + pbuf_free(p); + return ERR_OK; + } + /* packet consists of multiple fragments? */ + if ((IPH_OFFSET(iphdr) & PP_HTONS(IP_OFFMASK | IP_MF)) != 0) { +#if IP_REASSEMBLY /* packet fragment reassembly code present? */ + LWIP_DEBUGF(IP_DEBUG, ("IP packet is a fragment (id=0x%04"X16_F" tot_len=%"U16_F" len=%"U16_F" MF=%"U16_F" offset=%"U16_F"), calling ip4_reass()\n", + lwip_ntohs(IPH_ID(iphdr)), p->tot_len, lwip_ntohs(IPH_LEN(iphdr)), (u16_t)!!(IPH_OFFSET(iphdr) & PP_HTONS(IP_MF)), (u16_t)((lwip_ntohs(IPH_OFFSET(iphdr)) & IP_OFFMASK) * 8))); + /* reassemble the packet*/ + p = ip4_reass(p); + /* packet not fully reassembled yet? */ + if (p == NULL) { + return ERR_OK; + } + iphdr = (const struct ip_hdr *)p->payload; +#else /* IP_REASSEMBLY == 0, no packet fragment reassembly code present */ + pbuf_free(p); + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("IP packet dropped since it was fragmented (0x%"X16_F") (while IP_REASSEMBLY == 0).\n", + lwip_ntohs(IPH_OFFSET(iphdr)))); + IP_STATS_INC(ip.opterr); + IP_STATS_INC(ip.drop); + /* unsupported protocol feature */ + MIB2_STATS_INC(mib2.ipinunknownprotos); + return ERR_OK; +#endif /* IP_REASSEMBLY */ + } + +#if IP_OPTIONS_ALLOWED == 0 /* no support for IP options in the IP header? */ + +#if LWIP_IGMP + /* there is an extra "router alert" option in IGMP messages which we allow for but do not police */ + if ((iphdr_hlen > IP_HLEN) && (IPH_PROTO(iphdr) != IP_PROTO_IGMP)) { +#else + if (iphdr_hlen > IP_HLEN) { +#endif /* LWIP_IGMP */ + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("IP packet dropped since there were IP options (while IP_OPTIONS_ALLOWED == 0).\n")); + pbuf_free(p); + IP_STATS_INC(ip.opterr); + IP_STATS_INC(ip.drop); + /* unsupported protocol feature */ + MIB2_STATS_INC(mib2.ipinunknownprotos); + return ERR_OK; + } +#endif /* IP_OPTIONS_ALLOWED == 0 */ + + /* send to upper layers */ + LWIP_DEBUGF(IP_DEBUG, ("ip4_input: \n")); + ip4_debug_print(p); + LWIP_DEBUGF(IP_DEBUG, ("ip4_input: p->len %"U16_F" p->tot_len %"U16_F"\n", p->len, p->tot_len)); + + ip_data.current_netif = netif; + ip_data.current_input_netif = inp; + ip_data.current_ip4_header = iphdr; + ip_data.current_ip_header_tot_len = IPH_HL_BYTES(iphdr); + +#if LWIP_RAW + /* raw input did not eat the packet? */ + raw_status = raw_input(p, inp); + if (raw_status != RAW_INPUT_EATEN) +#endif /* LWIP_RAW */ + { + pbuf_remove_header(p, iphdr_hlen); /* Move to payload, no check necessary. */ + + switch (IPH_PROTO(iphdr)) { +#if LWIP_UDP + case IP_PROTO_UDP: +#if LWIP_UDPLITE + case IP_PROTO_UDPLITE: +#endif /* LWIP_UDPLITE */ + MIB2_STATS_INC(mib2.ipindelivers); + udp_input(p, inp); + break; +#endif /* LWIP_UDP */ +#if LWIP_TCP + case IP_PROTO_TCP: + MIB2_STATS_INC(mib2.ipindelivers); + tcp_input(p, inp); + break; +#endif /* LWIP_TCP */ +#if LWIP_ICMP + case IP_PROTO_ICMP: + MIB2_STATS_INC(mib2.ipindelivers); + icmp_input(p, inp); + break; +#endif /* LWIP_ICMP */ +#if LWIP_IGMP + case IP_PROTO_IGMP: + igmp_input(p, inp, ip4_current_dest_addr()); + break; +#endif /* LWIP_IGMP */ + default: +#if LWIP_RAW + if (raw_status == RAW_INPUT_DELIVERED) { + MIB2_STATS_INC(mib2.ipindelivers); + } else +#endif /* LWIP_RAW */ + { +#if LWIP_ICMP + /* send ICMP destination protocol unreachable unless is was a broadcast */ + if (!ip4_addr_isbroadcast(ip4_current_dest_addr(), netif) && + !ip4_addr_ismulticast(ip4_current_dest_addr())) { + pbuf_header_force(p, (s16_t)iphdr_hlen); /* Move to ip header, no check necessary. */ + icmp_dest_unreach(p, ICMP_DUR_PROTO); + } +#endif /* LWIP_ICMP */ + + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("Unsupported transport protocol %"U16_F"\n", (u16_t)IPH_PROTO(iphdr))); + + IP_STATS_INC(ip.proterr); + IP_STATS_INC(ip.drop); + MIB2_STATS_INC(mib2.ipinunknownprotos); + } + pbuf_free(p); + break; + } + } + + /* @todo: this is not really necessary... */ + ip_data.current_netif = NULL; + ip_data.current_input_netif = NULL; + ip_data.current_ip4_header = NULL; + ip_data.current_ip_header_tot_len = 0; + ip4_addr_set_any(ip4_current_src_addr()); + ip4_addr_set_any(ip4_current_dest_addr()); + + return ERR_OK; +} + +/** + * Sends an IP packet on a network interface. This function constructs + * the IP header and calculates the IP header checksum. If the source + * IP address is NULL, the IP address of the outgoing network + * interface is filled in as source address. + * If the destination IP address is LWIP_IP_HDRINCL, p is assumed to already + * include an IP header and p->payload points to it instead of the data. + * + * @param p the packet to send (p->payload points to the data, e.g. next + protocol header; if dest == LWIP_IP_HDRINCL, p already includes an + IP header and p->payload points to that IP header) + * @param src the source IP address to send from (if src == IP4_ADDR_ANY, the + * IP address of the netif used to send is used as source address) + * @param dest the destination IP address to send the packet to + * @param ttl the TTL value to be set in the IP header + * @param tos the TOS value to be set in the IP header + * @param proto the PROTOCOL to be set in the IP header + * @param netif the netif on which to send this packet + * @return ERR_OK if the packet was sent OK + * ERR_BUF if p doesn't have enough space for IP/LINK headers + * returns errors returned by netif->output + * + * @note ip_id: RFC791 "some host may be able to simply use + * unique identifiers independent of destination" + */ +err_t +ip4_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, + u8_t proto, struct netif *netif) +{ +#if IP_OPTIONS_SEND + return ip4_output_if_opt(p, src, dest, ttl, tos, proto, netif, NULL, 0); +} + +/** + * Same as ip_output_if() but with the possibility to include IP options: + * + * @ param ip_options pointer to the IP options, copied into the IP header + * @ param optlen length of ip_options + */ +err_t +ip4_output_if_opt(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options, + u16_t optlen) +{ +#endif /* IP_OPTIONS_SEND */ + const ip4_addr_t *src_used = src; + if (dest != LWIP_IP_HDRINCL) { + if (ip4_addr_isany(src)) { + src_used = netif_ip4_addr(netif); + } + } + +#if IP_OPTIONS_SEND + return ip4_output_if_opt_src(p, src_used, dest, ttl, tos, proto, netif, + ip_options, optlen); +#else /* IP_OPTIONS_SEND */ + return ip4_output_if_src(p, src_used, dest, ttl, tos, proto, netif); +#endif /* IP_OPTIONS_SEND */ +} + +/** + * Same as ip_output_if() but 'src' address is not replaced by netif address + * when it is 'any'. + */ +err_t +ip4_output_if_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, + u8_t proto, struct netif *netif) +{ +#if IP_OPTIONS_SEND + return ip4_output_if_opt_src(p, src, dest, ttl, tos, proto, netif, NULL, 0); +} + +/** + * Same as ip_output_if_opt() but 'src' address is not replaced by netif address + * when it is 'any'. + */ +err_t +ip4_output_if_opt_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options, + u16_t optlen) +{ +#endif /* IP_OPTIONS_SEND */ + struct ip_hdr *iphdr; + ip4_addr_t dest_addr; +#if CHECKSUM_GEN_IP_INLINE + u32_t chk_sum = 0; +#endif /* CHECKSUM_GEN_IP_INLINE */ + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); + + MIB2_STATS_INC(mib2.ipoutrequests); + + /* Should the IP header be generated or is it already included in p? */ + if (dest != LWIP_IP_HDRINCL) { + u16_t ip_hlen = IP_HLEN; +#if IP_OPTIONS_SEND + u16_t optlen_aligned = 0; + if (optlen != 0) { +#if CHECKSUM_GEN_IP_INLINE + int i; +#endif /* CHECKSUM_GEN_IP_INLINE */ + if (optlen > (IP_HLEN_MAX - IP_HLEN)) { + /* optlen too long */ + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip4_output_if_opt: optlen too long\n")); + IP_STATS_INC(ip.err); + MIB2_STATS_INC(mib2.ipoutdiscards); + return ERR_VAL; + } + /* round up to a multiple of 4 */ + optlen_aligned = (u16_t)((optlen + 3) & ~3); + ip_hlen = (u16_t)(ip_hlen + optlen_aligned); + /* First write in the IP options */ + if (pbuf_add_header(p, optlen_aligned)) { + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip4_output_if_opt: not enough room for IP options in pbuf\n")); + IP_STATS_INC(ip.err); + MIB2_STATS_INC(mib2.ipoutdiscards); + return ERR_BUF; + } + MEMCPY(p->payload, ip_options, optlen); + if (optlen < optlen_aligned) { + /* zero the remaining bytes */ + memset(((char *)p->payload) + optlen, 0, (size_t)(optlen_aligned - optlen)); + } +#if CHECKSUM_GEN_IP_INLINE + for (i = 0; i < optlen_aligned / 2; i++) { + chk_sum += ((u16_t *)p->payload)[i]; + } +#endif /* CHECKSUM_GEN_IP_INLINE */ + } +#endif /* IP_OPTIONS_SEND */ + /* generate IP header */ + if (pbuf_add_header(p, IP_HLEN)) { + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip4_output: not enough room for IP header in pbuf\n")); + + IP_STATS_INC(ip.err); + MIB2_STATS_INC(mib2.ipoutdiscards); + return ERR_BUF; + } + + iphdr = (struct ip_hdr *)p->payload; + LWIP_ASSERT("check that first pbuf can hold struct ip_hdr", + (p->len >= sizeof(struct ip_hdr))); + + IPH_TTL_SET(iphdr, ttl); + IPH_PROTO_SET(iphdr, proto); +#if CHECKSUM_GEN_IP_INLINE + chk_sum += PP_NTOHS(proto | (ttl << 8)); +#endif /* CHECKSUM_GEN_IP_INLINE */ + + /* dest cannot be NULL here */ + ip4_addr_copy(iphdr->dest, *dest); +#if CHECKSUM_GEN_IP_INLINE + chk_sum += ip4_addr_get_u32(&iphdr->dest) & 0xFFFF; + chk_sum += ip4_addr_get_u32(&iphdr->dest) >> 16; +#endif /* CHECKSUM_GEN_IP_INLINE */ + + IPH_VHL_SET(iphdr, 4, ip_hlen / 4); + IPH_TOS_SET(iphdr, tos); +#if CHECKSUM_GEN_IP_INLINE + chk_sum += PP_NTOHS(tos | (iphdr->_v_hl << 8)); +#endif /* CHECKSUM_GEN_IP_INLINE */ + IPH_LEN_SET(iphdr, lwip_htons(p->tot_len)); +#if CHECKSUM_GEN_IP_INLINE + chk_sum += iphdr->_len; +#endif /* CHECKSUM_GEN_IP_INLINE */ + IPH_OFFSET_SET(iphdr, 0); + IPH_ID_SET(iphdr, lwip_htons(ip_id)); +#if CHECKSUM_GEN_IP_INLINE + chk_sum += iphdr->_id; +#endif /* CHECKSUM_GEN_IP_INLINE */ + ++ip_id; + + if (src == NULL) { + ip4_addr_copy(iphdr->src, *IP4_ADDR_ANY4); + } else { + /* src cannot be NULL here */ + ip4_addr_copy(iphdr->src, *src); + } + +#if CHECKSUM_GEN_IP_INLINE + chk_sum += ip4_addr_get_u32(&iphdr->src) & 0xFFFF; + chk_sum += ip4_addr_get_u32(&iphdr->src) >> 16; + chk_sum = (chk_sum >> 16) + (chk_sum & 0xFFFF); + chk_sum = (chk_sum >> 16) + chk_sum; + chk_sum = ~chk_sum; + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_IP) { + iphdr->_chksum = (u16_t)chk_sum; /* network order */ + } +#if LWIP_CHECKSUM_CTRL_PER_NETIF + else { + IPH_CHKSUM_SET(iphdr, 0); + } +#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF*/ +#else /* CHECKSUM_GEN_IP_INLINE */ + IPH_CHKSUM_SET(iphdr, 0); +#if CHECKSUM_GEN_IP + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_IP) { + IPH_CHKSUM_SET(iphdr, inet_chksum(iphdr, ip_hlen)); + } +#endif /* CHECKSUM_GEN_IP */ +#endif /* CHECKSUM_GEN_IP_INLINE */ + } else { + /* IP header already included in p */ + if (p->len < IP_HLEN) { + LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip4_output: LWIP_IP_HDRINCL but pbuf is too short\n")); + IP_STATS_INC(ip.err); + MIB2_STATS_INC(mib2.ipoutdiscards); + return ERR_BUF; + } + iphdr = (struct ip_hdr *)p->payload; + ip4_addr_copy(dest_addr, iphdr->dest); + dest = &dest_addr; + } + + IP_STATS_INC(ip.xmit); + + LWIP_DEBUGF(IP_DEBUG, ("ip4_output_if: %c%c%"U16_F"\n", netif->name[0], netif->name[1], (u16_t)netif->num)); + ip4_debug_print(p); + +#if ENABLE_LOOPBACK + if (ip4_addr_eq(dest, netif_ip4_addr(netif)) +#if !LWIP_HAVE_LOOPIF + || ip4_addr_isloopback(dest) +#endif /* !LWIP_HAVE_LOOPIF */ + ) { + /* Packet to self, enqueue it for loopback */ + LWIP_DEBUGF(IP_DEBUG, ("netif_loop_output()")); + return netif_loop_output(netif, p); + } +#if LWIP_MULTICAST_TX_OPTIONS + if ((p->flags & PBUF_FLAG_MCASTLOOP) != 0) { + netif_loop_output(netif, p); + } +#endif /* LWIP_MULTICAST_TX_OPTIONS */ +#endif /* ENABLE_LOOPBACK */ +#if IP_FRAG + /* don't fragment if interface has mtu set to 0 [loopif] */ + if (netif->mtu && (p->tot_len > netif->mtu)) { + return ip4_frag(p, netif, dest); + } +#endif /* IP_FRAG */ + + LWIP_DEBUGF(IP_DEBUG, ("ip4_output_if: call netif->output()\n")); + return netif->output(netif, p, dest); +} + +/** + * Simple interface to ip_output_if. It finds the outgoing network + * interface and calls upon ip_output_if to do the actual work. + * + * @param p the packet to send (p->payload points to the data, e.g. next + protocol header; if dest == LWIP_IP_HDRINCL, p already includes an + IP header and p->payload points to that IP header) + * @param src the source IP address to send from (if src == IP4_ADDR_ANY, the + * IP address of the netif used to send is used as source address) + * @param dest the destination IP address to send the packet to + * @param ttl the TTL value to be set in the IP header + * @param tos the TOS value to be set in the IP header + * @param proto the PROTOCOL to be set in the IP header + * + * @return ERR_RTE if no route is found + * see ip_output_if() for more return values + */ +err_t +ip4_output(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, u8_t proto) +{ + struct netif *netif; + + LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); + + if ((netif = ip4_route_src(src, dest)) == NULL) { + LWIP_DEBUGF(IP_DEBUG, ("ip4_output: No route to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + ip4_addr1_16(dest), ip4_addr2_16(dest), ip4_addr3_16(dest), ip4_addr4_16(dest))); + IP_STATS_INC(ip.rterr); + return ERR_RTE; + } + + return ip4_output_if(p, src, dest, ttl, tos, proto, netif); +} + +#if LWIP_NETIF_USE_HINTS +/** Like ip_output, but takes and addr_hint pointer that is passed on to netif->addr_hint + * before calling ip_output_if. + * + * @param p the packet to send (p->payload points to the data, e.g. next + protocol header; if dest == LWIP_IP_HDRINCL, p already includes an + IP header and p->payload points to that IP header) + * @param src the source IP address to send from (if src == IP4_ADDR_ANY, the + * IP address of the netif used to send is used as source address) + * @param dest the destination IP address to send the packet to + * @param ttl the TTL value to be set in the IP header + * @param tos the TOS value to be set in the IP header + * @param proto the PROTOCOL to be set in the IP header + * @param netif_hint netif output hint pointer set to netif->hint before + * calling ip_output_if() + * + * @return ERR_RTE if no route is found + * see ip_output_if() for more return values + */ +err_t +ip4_output_hinted(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, u8_t proto, struct netif_hint *netif_hint) +{ + struct netif *netif; + err_t err; + + LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); + + if ((netif = ip4_route_src(src, dest)) == NULL) { + LWIP_DEBUGF(IP_DEBUG, ("ip4_output: No route to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + ip4_addr1_16(dest), ip4_addr2_16(dest), ip4_addr3_16(dest), ip4_addr4_16(dest))); + IP_STATS_INC(ip.rterr); + return ERR_RTE; + } + + NETIF_SET_HINTS(netif, netif_hint); + err = ip4_output_if(p, src, dest, ttl, tos, proto, netif); + NETIF_RESET_HINTS(netif); + + return err; +} +#endif /* LWIP_NETIF_USE_HINTS*/ + +#if IP_DEBUG +/* Print an IP header by using LWIP_DEBUGF + * @param p an IP packet, p->payload pointing to the IP header + */ +void +ip4_debug_print(struct pbuf *p) +{ + struct ip_hdr *iphdr = (struct ip_hdr *)p->payload; + + LWIP_DEBUGF(IP_DEBUG, ("IP header:\n")); + LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(IP_DEBUG, ("|%2"S16_F" |%2"S16_F" | 0x%02"X16_F" | %5"U16_F" | (v, hl, tos, len)\n", + (u16_t)IPH_V(iphdr), + (u16_t)IPH_HL(iphdr), + (u16_t)IPH_TOS(iphdr), + lwip_ntohs(IPH_LEN(iphdr)))); + LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(IP_DEBUG, ("| %5"U16_F" |%"U16_F"%"U16_F"%"U16_F"| %4"U16_F" | (id, flags, offset)\n", + lwip_ntohs(IPH_ID(iphdr)), + (u16_t)(lwip_ntohs(IPH_OFFSET(iphdr)) >> 15 & 1), + (u16_t)(lwip_ntohs(IPH_OFFSET(iphdr)) >> 14 & 1), + (u16_t)(lwip_ntohs(IPH_OFFSET(iphdr)) >> 13 & 1), + (u16_t)(lwip_ntohs(IPH_OFFSET(iphdr)) & IP_OFFMASK))); + LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(IP_DEBUG, ("| %3"U16_F" | %3"U16_F" | 0x%04"X16_F" | (ttl, proto, chksum)\n", + (u16_t)IPH_TTL(iphdr), + (u16_t)IPH_PROTO(iphdr), + lwip_ntohs(IPH_CHKSUM(iphdr)))); + LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(IP_DEBUG, ("| %3"U16_F" | %3"U16_F" | %3"U16_F" | %3"U16_F" | (src)\n", + ip4_addr1_16_val(iphdr->src), + ip4_addr2_16_val(iphdr->src), + ip4_addr3_16_val(iphdr->src), + ip4_addr4_16_val(iphdr->src))); + LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(IP_DEBUG, ("| %3"U16_F" | %3"U16_F" | %3"U16_F" | %3"U16_F" | (dest)\n", + ip4_addr1_16_val(iphdr->dest), + ip4_addr2_16_val(iphdr->dest), + ip4_addr3_16_val(iphdr->dest), + ip4_addr4_16_val(iphdr->dest))); + LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); +} +#endif /* IP_DEBUG */ + +#endif /* LWIP_IPV4 */ diff --git a/middleware/lwip/src/core/ipv4/ip4_addr.c b/middleware/lwip/src/core/ipv4/ip4_addr.c new file mode 100644 index 0000000..79127ac --- /dev/null +++ b/middleware/lwip/src/core/ipv4/ip4_addr.c @@ -0,0 +1,323 @@ +/** + * @file + * This is the IPv4 address tools implementation. + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV4 + +#include "lwip/ip_addr.h" +#include "lwip/netif.h" + +/* used by IP4_ADDR_ANY and IP_ADDR_BROADCAST in ip_addr.h */ +const ip_addr_t ip_addr_any = IPADDR4_INIT(IPADDR_ANY); +const ip_addr_t ip_addr_broadcast = IPADDR4_INIT(IPADDR_BROADCAST); + +/** + * Determine if an address is a broadcast address on a network interface + * + * @param addr address to be checked + * @param netif the network interface against which the address is checked + * @return returns non-zero if the address is a broadcast address + */ +u8_t +ip4_addr_isbroadcast_u32(u32_t addr, const struct netif *netif) +{ + ip4_addr_t ipaddr; + ip4_addr_set_u32(&ipaddr, addr); + + /* all ones (broadcast) or all zeroes (old skool broadcast) */ + if ((~addr == IPADDR_ANY) || + (addr == IPADDR_ANY)) { + return 1; + /* no broadcast support on this network interface? */ + } else if ((netif->flags & NETIF_FLAG_BROADCAST) == 0) { + /* the given address cannot be a broadcast address + * nor can we check against any broadcast addresses */ + return 0; + /* address matches network interface address exactly? => no broadcast */ + } else if (addr == ip4_addr_get_u32(netif_ip4_addr(netif))) { + return 0; + /* on the same (sub) network... */ + } else if (ip4_addr_net_eq(&ipaddr, netif_ip4_addr(netif), netif_ip4_netmask(netif)) + /* ...and host identifier bits are all ones? =>... */ + && ((addr & ~ip4_addr_get_u32(netif_ip4_netmask(netif))) == + (IPADDR_BROADCAST & ~ip4_addr_get_u32(netif_ip4_netmask(netif))))) { + /* => network broadcast address */ + return 1; + } else { + return 0; + } +} + +/** Checks if a netmask is valid (starting with ones, then only zeros) + * + * @param netmask the IPv4 netmask to check (in network byte order!) + * @return 1 if the netmask is valid, 0 if it is not + */ +u8_t +ip4_addr_netmask_valid(u32_t netmask) +{ + u32_t mask; + u32_t nm_hostorder = lwip_htonl(netmask); + + /* first, check for the first zero */ + for (mask = 1UL << 31 ; mask != 0; mask >>= 1) { + if ((nm_hostorder & mask) == 0) { + break; + } + } + /* then check that there is no one */ + for (; mask != 0; mask >>= 1) { + if ((nm_hostorder & mask) != 0) { + /* there is a one after the first zero -> invalid */ + return 0; + } + } + /* no one after the first zero -> valid */ + return 1; +} + +/** + * Ascii internet address interpretation routine. + * The value returned is in network order. + * + * @param cp IP address in ascii representation (e.g. "127.0.0.1") + * @return ip address in network order + */ +u32_t +ipaddr_addr(const char *cp) +{ + ip4_addr_t val; + + if (ip4addr_aton(cp, &val)) { + return ip4_addr_get_u32(&val); + } + return (IPADDR_NONE); +} + +/** + * Check whether "cp" is a valid ascii representation + * of an Internet address and convert to a binary address. + * Returns 1 if the address is valid, 0 if not. + * This replaces inet_addr, the return value from which + * cannot distinguish between failure and a local broadcast address. + * + * @param cp IP address in ascii representation (e.g. "127.0.0.1") + * @param addr pointer to which to save the ip address in network order + * @return 1 if cp could be converted to addr, 0 on failure + */ +int +ip4addr_aton(const char *cp, ip4_addr_t *addr) +{ + u32_t val; + u8_t base; + char c; + u32_t parts[4]; + u32_t *pp = parts; + + c = *cp; + for (;;) { + /* + * Collect number up to ``.''. + * Values are specified as for C: + * 0x=hex, 0=octal, 1-9=decimal. + */ + if (!lwip_isdigit(c)) { + return 0; + } + val = 0; + base = 10; + if (c == '0') { + c = *++cp; + if (c == 'x' || c == 'X') { + base = 16; + c = *++cp; + } else { + base = 8; + } + } + for (;;) { + if (lwip_isdigit(c)) { + if((base == 8) && ((u32_t)(c - '0') >= 8)) + break; + val = (val * base) + (u32_t)(c - '0'); + c = *++cp; + } else if (base == 16 && lwip_isxdigit(c)) { + val = (val << 4) | (u32_t)(c + 10 - (lwip_islower(c) ? 'a' : 'A')); + c = *++cp; + } else { + break; + } + } + if (c == '.') { + /* + * Internet format: + * a.b.c.d + * a.b.c (with c treated as 16 bits) + * a.b (with b treated as 24 bits) + */ + if (pp >= parts + 3) { + return 0; + } + *pp++ = val; + c = *++cp; + } else { + break; + } + } + /* + * Check for trailing characters. + */ + if (c != '\0' && !lwip_isspace(c)) { + return 0; + } + /* + * Concoct the address according to + * the number of parts specified. + */ + switch (pp - parts + 1) { + + case 0: + return 0; /* initial nondigit */ + + case 1: /* a -- 32 bits */ + break; + + case 2: /* a.b -- 8.24 bits */ + if (val > 0xffffffUL) { + return 0; + } + if (parts[0] > 0xff) { + return 0; + } + val |= parts[0] << 24; + break; + + case 3: /* a.b.c -- 8.8.16 bits */ + if (val > 0xffff) { + return 0; + } + if ((parts[0] > 0xff) || (parts[1] > 0xff)) { + return 0; + } + val |= (parts[0] << 24) | (parts[1] << 16); + break; + + case 4: /* a.b.c.d -- 8.8.8.8 bits */ + if (val > 0xff) { + return 0; + } + if ((parts[0] > 0xff) || (parts[1] > 0xff) || (parts[2] > 0xff)) { + return 0; + } + val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8); + break; + default: + LWIP_ASSERT("unhandled", 0); + break; + } + if (addr) { + ip4_addr_set_u32(addr, lwip_htonl(val)); + } + return 1; +} + +/** + * Convert numeric IP address into decimal dotted ASCII representation. + * returns ptr to static buffer; not reentrant! + * + * @param addr ip address in network order to convert + * @return pointer to a global static (!) buffer that holds the ASCII + * representation of addr + */ +char * +ip4addr_ntoa(const ip4_addr_t *addr) +{ + static char str[IP4ADDR_STRLEN_MAX]; + return ip4addr_ntoa_r(addr, str, IP4ADDR_STRLEN_MAX); +} + +/** + * Same as ip4addr_ntoa, but reentrant since a user-supplied buffer is used. + * + * @param addr ip address in network order to convert + * @param buf target buffer where the string is stored + * @param buflen length of buf + * @return either pointer to buf which now holds the ASCII + * representation of addr or NULL if buf was too small + */ +char * +ip4addr_ntoa_r(const ip4_addr_t *addr, char *buf, int buflen) +{ + u32_t s_addr; + char inv[3]; + char *rp; + u8_t *ap; + u8_t rem; + u8_t n; + u8_t i; + int len = 0; + + s_addr = ip4_addr_get_u32(addr); + + rp = buf; + ap = (u8_t *)&s_addr; + for (n = 0; n < 4; n++) { + i = 0; + do { + rem = *ap % (u8_t)10; + *ap /= (u8_t)10; + inv[i++] = (char)('0' + rem); + } while (*ap); + while (i--) { + if (len++ >= buflen) { + return NULL; + } + *rp++ = inv[i]; + } + if (len++ >= buflen) { + return NULL; + } + *rp++ = '.'; + ap++; + } + *--rp = 0; + return buf; +} + +#endif /* LWIP_IPV4 */ diff --git a/middleware/lwip/src/core/ipv4/ip4_frag.c b/middleware/lwip/src/core/ipv4/ip4_frag.c new file mode 100644 index 0000000..5303144 --- /dev/null +++ b/middleware/lwip/src/core/ipv4/ip4_frag.c @@ -0,0 +1,894 @@ +/** + * @file + * This is the IPv4 packet segmentation and reassembly implementation. + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Jani Monoses + * Simon Goldschmidt + * original reassembly code by Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV4 + +#include "lwip/ip4_frag.h" +#include "lwip/def.h" +#include "lwip/inet_chksum.h" +#include "lwip/netif.h" +#include "lwip/stats.h" +#include "lwip/icmp.h" + +#include + +#if IP_REASSEMBLY +/** + * The IP reassembly code currently has the following limitations: + * - IP header options are not supported + * - fragments must not overlap (e.g. due to different routes), + * currently, overlapping or duplicate fragments are thrown away + * if IP_REASS_CHECK_OVERLAP=1 (the default)! + * + * @todo: work with IP header options + */ + +/** Setting this to 0, you can turn off checking the fragments for overlapping + * regions. The code gets a little smaller. Only use this if you know that + * overlapping won't occur on your network! */ +#ifndef IP_REASS_CHECK_OVERLAP +#define IP_REASS_CHECK_OVERLAP 1 +#endif /* IP_REASS_CHECK_OVERLAP */ + +/** Set to 0 to prevent freeing the oldest datagram when the reassembly buffer is + * full (IP_REASS_MAX_PBUFS pbufs are enqueued). The code gets a little smaller. + * Datagrams will be freed by timeout only. Especially useful when MEMP_NUM_REASSDATA + * is set to 1, so one datagram can be reassembled at a time, only. */ +#ifndef IP_REASS_FREE_OLDEST +#define IP_REASS_FREE_OLDEST 1 +#endif /* IP_REASS_FREE_OLDEST */ + +#define IP_REASS_FLAG_LASTFRAG 0x01 + +#define IP_REASS_VALIDATE_TELEGRAM_FINISHED 1 +#define IP_REASS_VALIDATE_PBUF_QUEUED 0 +#define IP_REASS_VALIDATE_PBUF_DROPPED -1 + +/** This is a helper struct which holds the starting + * offset and the ending offset of this fragment to + * easily chain the fragments. + * It has the same packing requirements as the IP header, since it replaces + * the IP header in memory in incoming fragments (after copying it) to keep + * track of the various fragments. (-> If the IP header doesn't need packing, + * this struct doesn't need packing, too.) + */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip_reass_helper { + PACK_STRUCT_FIELD(struct pbuf *next_pbuf); + PACK_STRUCT_FIELD(u16_t start); + PACK_STRUCT_FIELD(u16_t end); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#define IP_ADDRESSES_AND_ID_MATCH(iphdrA, iphdrB) \ + (ip4_addr_eq(&(iphdrA)->src, &(iphdrB)->src) && \ + ip4_addr_eq(&(iphdrA)->dest, &(iphdrB)->dest) && \ + IPH_ID(iphdrA) == IPH_ID(iphdrB)) ? 1 : 0 + +/* global variables */ +static struct ip_reassdata *reassdatagrams; +static u16_t ip_reass_pbufcount; + +/* function prototypes */ +static void ip_reass_dequeue_datagram(struct ip_reassdata *ipr, struct ip_reassdata *prev); +static int ip_reass_free_complete_datagram(struct ip_reassdata *ipr, struct ip_reassdata *prev); + +/** + * Reassembly timer base function + * for both NO_SYS == 0 and 1 (!). + * + * Should be called every 1000 msec (defined by IP_TMR_INTERVAL). + */ +void +ip_reass_tmr(void) +{ + struct ip_reassdata *r, *prev = NULL; + + r = reassdatagrams; + while (r != NULL) { + /* Decrement the timer. Once it reaches 0, + * clean up the incomplete fragment assembly */ + if (r->timer > 0) { + r->timer--; + LWIP_DEBUGF(IP_REASS_DEBUG, ("ip_reass_tmr: timer dec %"U16_F"\n", (u16_t)r->timer)); + prev = r; + r = r->next; + } else { + /* reassembly timed out */ + struct ip_reassdata *tmp; + LWIP_DEBUGF(IP_REASS_DEBUG, ("ip_reass_tmr: timer timed out\n")); + tmp = r; + /* get the next pointer before freeing */ + r = r->next; + /* free the helper struct and all enqueued pbufs */ + ip_reass_free_complete_datagram(tmp, prev); + } + } +} + +/** + * Free a datagram (struct ip_reassdata) and all its pbufs. + * Updates the total count of enqueued pbufs (ip_reass_pbufcount), + * SNMP counters and sends an ICMP time exceeded packet. + * + * @param ipr datagram to free + * @param prev the previous datagram in the linked list + * @return the number of pbufs freed + */ +static int +ip_reass_free_complete_datagram(struct ip_reassdata *ipr, struct ip_reassdata *prev) +{ + u16_t pbufs_freed = 0; + u16_t clen; + struct pbuf *p; + struct ip_reass_helper *iprh; + + LWIP_ASSERT("prev != ipr", prev != ipr); + if (prev != NULL) { + LWIP_ASSERT("prev->next == ipr", prev->next == ipr); + } + + MIB2_STATS_INC(mib2.ipreasmfails); +#if LWIP_ICMP + iprh = (struct ip_reass_helper *)ipr->p->payload; + if (iprh->start == 0) { + /* The first fragment was received, send ICMP time exceeded. */ + /* First, de-queue the first pbuf from r->p. */ + p = ipr->p; + ipr->p = iprh->next_pbuf; + /* Then, copy the original header into it. */ + SMEMCPY(p->payload, &ipr->iphdr, IP_HLEN); + icmp_time_exceeded(p, ICMP_TE_FRAG); + clen = pbuf_clen(p); + LWIP_ASSERT("pbufs_freed + clen <= 0xffff", pbufs_freed + clen <= 0xffff); + pbufs_freed = (u16_t)(pbufs_freed + clen); + pbuf_free(p); + } +#endif /* LWIP_ICMP */ + + /* First, free all received pbufs. The individual pbufs need to be released + separately as they have not yet been chained */ + p = ipr->p; + while (p != NULL) { + struct pbuf *pcur; + iprh = (struct ip_reass_helper *)p->payload; + pcur = p; + /* get the next pointer before freeing */ + p = iprh->next_pbuf; + clen = pbuf_clen(pcur); + LWIP_ASSERT("pbufs_freed + clen <= 0xffff", pbufs_freed + clen <= 0xffff); + pbufs_freed = (u16_t)(pbufs_freed + clen); + pbuf_free(pcur); + } + /* Then, unchain the struct ip_reassdata from the list and free it. */ + ip_reass_dequeue_datagram(ipr, prev); + LWIP_ASSERT("ip_reass_pbufcount >= pbufs_freed", ip_reass_pbufcount >= pbufs_freed); + ip_reass_pbufcount = (u16_t)(ip_reass_pbufcount - pbufs_freed); + + return pbufs_freed; +} + +#if IP_REASS_FREE_OLDEST +/** + * Free the oldest datagram to make room for enqueueing new fragments. + * The datagram 'fraghdr' belongs to is not freed! + * + * @param fraghdr IP header of the current fragment + * @param pbufs_needed number of pbufs needed to enqueue + * (used for freeing other datagrams if not enough space) + * @return the number of pbufs freed + */ +static int +ip_reass_remove_oldest_datagram(struct ip_hdr *fraghdr, int pbufs_needed) +{ + /* @todo Can't we simply remove the last datagram in the + * linked list behind reassdatagrams? + */ + struct ip_reassdata *r, *oldest, *prev, *oldest_prev; + int pbufs_freed = 0, pbufs_freed_current; + int other_datagrams; + + /* Free datagrams until being allowed to enqueue 'pbufs_needed' pbufs, + * but don't free the datagram that 'fraghdr' belongs to! */ + do { + oldest = NULL; + prev = NULL; + oldest_prev = NULL; + other_datagrams = 0; + r = reassdatagrams; + while (r != NULL) { + if (!IP_ADDRESSES_AND_ID_MATCH(&r->iphdr, fraghdr)) { + /* Not the same datagram as fraghdr */ + other_datagrams++; + if (oldest == NULL) { + oldest = r; + oldest_prev = prev; + } else if (r->timer <= oldest->timer) { + /* older than the previous oldest */ + oldest = r; + oldest_prev = prev; + } + } + if (r->next != NULL) { + prev = r; + } + r = r->next; + } + if (oldest != NULL) { + pbufs_freed_current = ip_reass_free_complete_datagram(oldest, oldest_prev); + pbufs_freed += pbufs_freed_current; + } + } while ((pbufs_freed < pbufs_needed) && (other_datagrams > 1)); + return pbufs_freed; +} +#endif /* IP_REASS_FREE_OLDEST */ + +/** + * Enqueues a new fragment into the fragment queue + * @param fraghdr points to the new fragments IP hdr + * @param clen number of pbufs needed to enqueue (used for freeing other datagrams if not enough space) + * @return A pointer to the queue location into which the fragment was enqueued + */ +static struct ip_reassdata * +ip_reass_enqueue_new_datagram(struct ip_hdr *fraghdr, int clen) +{ + struct ip_reassdata *ipr; +#if ! IP_REASS_FREE_OLDEST + LWIP_UNUSED_ARG(clen); +#endif + + /* No matching previous fragment found, allocate a new reassdata struct */ + ipr = (struct ip_reassdata *)memp_malloc(MEMP_REASSDATA); + if (ipr == NULL) { +#if IP_REASS_FREE_OLDEST + if (ip_reass_remove_oldest_datagram(fraghdr, clen) >= clen) { + ipr = (struct ip_reassdata *)memp_malloc(MEMP_REASSDATA); + } + if (ipr == NULL) +#endif /* IP_REASS_FREE_OLDEST */ + { + IPFRAG_STATS_INC(ip_frag.memerr); + LWIP_DEBUGF(IP_REASS_DEBUG, ("Failed to alloc reassdata struct\n")); + return NULL; + } + } + memset(ipr, 0, sizeof(struct ip_reassdata)); + ipr->timer = IP_REASS_MAXAGE; + + /* enqueue the new structure to the front of the list */ + ipr->next = reassdatagrams; + reassdatagrams = ipr; + /* copy the ip header for later tests and input */ + /* @todo: no ip options supported? */ + SMEMCPY(&(ipr->iphdr), fraghdr, IP_HLEN); + return ipr; +} + +/** + * Dequeues a datagram from the datagram queue. Doesn't deallocate the pbufs. + * @param ipr points to the queue entry to dequeue + */ +static void +ip_reass_dequeue_datagram(struct ip_reassdata *ipr, struct ip_reassdata *prev) +{ + /* dequeue the reass struct */ + if (reassdatagrams == ipr) { + /* it was the first in the list */ + reassdatagrams = ipr->next; + } else { + /* it wasn't the first, so it must have a valid 'prev' */ + LWIP_ASSERT("sanity check linked list", prev != NULL); + prev->next = ipr->next; + } + + /* now we can free the ip_reassdata struct */ + memp_free(MEMP_REASSDATA, ipr); +} + +/** + * Chain a new pbuf into the pbuf list that composes the datagram. The pbuf list + * will grow over time as new pbufs are rx. + * Also checks that the datagram passes basic continuity checks (if the last + * fragment was received at least once). + * @param ipr points to the reassembly state + * @param new_p points to the pbuf for the current fragment + * @param is_last is 1 if this pbuf has MF==0 (ipr->flags not updated yet) + * @return see IP_REASS_VALIDATE_* defines + */ +static int +ip_reass_chain_frag_into_datagram_and_validate(struct ip_reassdata *ipr, struct pbuf *new_p, int is_last) +{ + struct ip_reass_helper *iprh, *iprh_tmp, *iprh_prev = NULL; + struct pbuf *q; + u16_t offset, len; + u8_t hlen; + struct ip_hdr *fraghdr; + int valid = 1; + + /* Extract length and fragment offset from current fragment */ + fraghdr = (struct ip_hdr *)new_p->payload; + len = lwip_ntohs(IPH_LEN(fraghdr)); + hlen = IPH_HL_BYTES(fraghdr); + if (hlen > len) { + /* invalid datagram */ + return IP_REASS_VALIDATE_PBUF_DROPPED; + } + len = (u16_t)(len - hlen); + offset = IPH_OFFSET_BYTES(fraghdr); + + /* overwrite the fragment's ip header from the pbuf with our helper struct, + * and setup the embedded helper structure. */ + /* make sure the struct ip_reass_helper fits into the IP header */ + LWIP_ASSERT("sizeof(struct ip_reass_helper) <= IP_HLEN", + sizeof(struct ip_reass_helper) <= IP_HLEN); + iprh = (struct ip_reass_helper *)new_p->payload; + iprh->next_pbuf = NULL; + iprh->start = offset; + iprh->end = (u16_t)(offset + len); + if (iprh->end < offset) { + /* u16_t overflow, cannot handle this */ + return IP_REASS_VALIDATE_PBUF_DROPPED; + } + + /* Iterate through until we either get to the end of the list (append), + * or we find one with a larger offset (insert). */ + for (q = ipr->p; q != NULL;) { + iprh_tmp = (struct ip_reass_helper *)q->payload; + if (iprh->start < iprh_tmp->start) { + /* the new pbuf should be inserted before this */ + iprh->next_pbuf = q; + if (iprh_prev != NULL) { + /* not the fragment with the lowest offset */ +#if IP_REASS_CHECK_OVERLAP + if ((iprh->start < iprh_prev->end) || (iprh->end > iprh_tmp->start)) { + /* fragment overlaps with previous or following, throw away */ + return IP_REASS_VALIDATE_PBUF_DROPPED; + } +#endif /* IP_REASS_CHECK_OVERLAP */ + iprh_prev->next_pbuf = new_p; + if (iprh_prev->end != iprh->start) { + /* There is a fragment missing between the current + * and the previous fragment */ + valid = 0; + } + } else { +#if IP_REASS_CHECK_OVERLAP + if (iprh->end > iprh_tmp->start) { + /* fragment overlaps with following, throw away */ + return IP_REASS_VALIDATE_PBUF_DROPPED; + } +#endif /* IP_REASS_CHECK_OVERLAP */ + /* fragment with the lowest offset */ + ipr->p = new_p; + } + break; + } else if (iprh->start == iprh_tmp->start) { + /* received the same datagram twice: no need to keep the datagram */ + return IP_REASS_VALIDATE_PBUF_DROPPED; +#if IP_REASS_CHECK_OVERLAP + } else if (iprh->start < iprh_tmp->end) { + /* overlap: no need to keep the new datagram */ + return IP_REASS_VALIDATE_PBUF_DROPPED; +#endif /* IP_REASS_CHECK_OVERLAP */ + } else { + /* Check if the fragments received so far have no holes. */ + if (iprh_prev != NULL) { + if (iprh_prev->end != iprh_tmp->start) { + /* There is a fragment missing between the current + * and the previous fragment */ + valid = 0; + } + } + } + q = iprh_tmp->next_pbuf; + iprh_prev = iprh_tmp; + } + + /* If q is NULL, then we made it to the end of the list. Determine what to do now */ + if (q == NULL) { + if (iprh_prev != NULL) { + /* this is (for now), the fragment with the highest offset: + * chain it to the last fragment */ +#if IP_REASS_CHECK_OVERLAP + LWIP_ASSERT("check fragments don't overlap", iprh_prev->end <= iprh->start); +#endif /* IP_REASS_CHECK_OVERLAP */ + iprh_prev->next_pbuf = new_p; + if (iprh_prev->end != iprh->start) { + valid = 0; + } + } else { +#if IP_REASS_CHECK_OVERLAP + LWIP_ASSERT("no previous fragment, this must be the first fragment!", + ipr->p == NULL); +#endif /* IP_REASS_CHECK_OVERLAP */ + /* this is the first fragment we ever received for this ip datagram */ + ipr->p = new_p; + } + } + + /* At this point, the validation part begins: */ + /* If we already received the last fragment */ + if (is_last || ((ipr->flags & IP_REASS_FLAG_LASTFRAG) != 0)) { + /* and had no holes so far */ + if (valid) { + /* then check if the rest of the fragments is here */ + /* Check if the queue starts with the first datagram */ + if ((ipr->p == NULL) || (((struct ip_reass_helper *)ipr->p->payload)->start != 0)) { + valid = 0; + } else { + /* and check that there are no holes after this datagram */ + iprh_prev = iprh; + q = iprh->next_pbuf; + while (q != NULL) { + iprh = (struct ip_reass_helper *)q->payload; + if (iprh_prev->end != iprh->start) { + valid = 0; + break; + } + iprh_prev = iprh; + q = iprh->next_pbuf; + } + /* if still valid, all fragments are received + * (because to the MF==0 already arrived */ + if (valid) { + LWIP_ASSERT("sanity check", ipr->p != NULL); + LWIP_ASSERT("sanity check", + ((struct ip_reass_helper *)ipr->p->payload) != iprh); + LWIP_ASSERT("validate_datagram:next_pbuf!=NULL", + iprh->next_pbuf == NULL); + } + } + } + /* If valid is 0 here, there are some fragments missing in the middle + * (since MF == 0 has already arrived). Such datagrams simply time out if + * no more fragments are received... */ + return valid ? IP_REASS_VALIDATE_TELEGRAM_FINISHED : IP_REASS_VALIDATE_PBUF_QUEUED; + } + /* If we come here, not all fragments were received, yet! */ + return IP_REASS_VALIDATE_PBUF_QUEUED; /* not yet valid! */ +} + +/** + * Reassembles incoming IP fragments into an IP datagram. + * + * @param p points to a pbuf chain of the fragment + * @return NULL if reassembly is incomplete, ? otherwise + */ +struct pbuf * +ip4_reass(struct pbuf *p) +{ + struct pbuf *r; + struct ip_hdr *fraghdr; + struct ip_reassdata *ipr; + struct ip_reass_helper *iprh; + u16_t offset, len, clen; + u8_t hlen; + int valid; + int is_last; + + IPFRAG_STATS_INC(ip_frag.recv); + MIB2_STATS_INC(mib2.ipreasmreqds); + + fraghdr = (struct ip_hdr *)p->payload; + + if (IPH_HL_BYTES(fraghdr) != IP_HLEN) { + LWIP_DEBUGF(IP_REASS_DEBUG, ("ip4_reass: IP options currently not supported!\n")); + IPFRAG_STATS_INC(ip_frag.err); + goto nullreturn; + } + + offset = IPH_OFFSET_BYTES(fraghdr); + len = lwip_ntohs(IPH_LEN(fraghdr)); + hlen = IPH_HL_BYTES(fraghdr); + if (hlen > len) { + /* invalid datagram */ + goto nullreturn; + } + len = (u16_t)(len - hlen); + + /* Check if we are allowed to enqueue more datagrams. */ + clen = pbuf_clen(p); + if ((ip_reass_pbufcount + clen) > IP_REASS_MAX_PBUFS) { +#if IP_REASS_FREE_OLDEST + if (!ip_reass_remove_oldest_datagram(fraghdr, clen) || + ((ip_reass_pbufcount + clen) > IP_REASS_MAX_PBUFS)) +#endif /* IP_REASS_FREE_OLDEST */ + { + /* No datagram could be freed and still too many pbufs enqueued */ + LWIP_DEBUGF(IP_REASS_DEBUG, ("ip4_reass: Overflow condition: pbufct=%d, clen=%d, MAX=%d\n", + ip_reass_pbufcount, clen, IP_REASS_MAX_PBUFS)); + IPFRAG_STATS_INC(ip_frag.memerr); + /* @todo: send ICMP time exceeded here? */ + /* drop this pbuf */ + goto nullreturn; + } + } + + /* Look for the datagram the fragment belongs to in the current datagram queue, + * remembering the previous in the queue for later dequeueing. */ + for (ipr = reassdatagrams; ipr != NULL; ipr = ipr->next) { + /* Check if the incoming fragment matches the one currently present + in the reassembly buffer. If so, we proceed with copying the + fragment into the buffer. */ + if (IP_ADDRESSES_AND_ID_MATCH(&ipr->iphdr, fraghdr)) { + LWIP_DEBUGF(IP_REASS_DEBUG, ("ip4_reass: matching previous fragment ID=%"X16_F"\n", + lwip_ntohs(IPH_ID(fraghdr)))); + IPFRAG_STATS_INC(ip_frag.cachehit); + break; + } + } + + if (ipr == NULL) { + /* Enqueue a new datagram into the datagram queue */ + ipr = ip_reass_enqueue_new_datagram(fraghdr, clen); + /* Bail if unable to enqueue */ + if (ipr == NULL) { + goto nullreturn; + } + } else { + if (((lwip_ntohs(IPH_OFFSET(fraghdr)) & IP_OFFMASK) == 0) && + ((lwip_ntohs(IPH_OFFSET(&ipr->iphdr)) & IP_OFFMASK) != 0)) { + /* ipr->iphdr is not the header from the first fragment, but fraghdr is + * -> copy fraghdr into ipr->iphdr since we want to have the header + * of the first fragment (for ICMP time exceeded and later, for copying + * all options, if supported)*/ + SMEMCPY(&ipr->iphdr, fraghdr, IP_HLEN); + } + } + + /* At this point, we have either created a new entry or pointing + * to an existing one */ + + /* check for 'no more fragments', and update queue entry*/ + is_last = (IPH_OFFSET(fraghdr) & PP_NTOHS(IP_MF)) == 0; + if (is_last) { + u16_t datagram_len = (u16_t)(offset + len); + if ((datagram_len < offset) || (datagram_len > (0xFFFF - IP_HLEN))) { + /* u16_t overflow, cannot handle this */ + goto nullreturn_ipr; + } + } + /* find the right place to insert this pbuf */ + /* @todo: trim pbufs if fragments are overlapping */ + valid = ip_reass_chain_frag_into_datagram_and_validate(ipr, p, is_last); + if (valid == IP_REASS_VALIDATE_PBUF_DROPPED) { + goto nullreturn_ipr; + } + /* if we come here, the pbuf has been enqueued */ + + /* Track the current number of pbufs current 'in-flight', in order to limit + the number of fragments that may be enqueued at any one time + (overflow checked by testing against IP_REASS_MAX_PBUFS) */ + ip_reass_pbufcount = (u16_t)(ip_reass_pbufcount + clen); + if (is_last) { + u16_t datagram_len = (u16_t)(offset + len); + ipr->datagram_len = datagram_len; + ipr->flags |= IP_REASS_FLAG_LASTFRAG; + LWIP_DEBUGF(IP_REASS_DEBUG, + ("ip4_reass: last fragment seen, total len %"S16_F"\n", + ipr->datagram_len)); + } + + if (valid == IP_REASS_VALIDATE_TELEGRAM_FINISHED) { + struct ip_reassdata *ipr_prev; + /* the totally last fragment (flag more fragments = 0) was received at least + * once AND all fragments are received */ + u16_t datagram_len = (u16_t)(ipr->datagram_len + IP_HLEN); + + /* save the second pbuf before copying the header over the pointer */ + r = ((struct ip_reass_helper *)ipr->p->payload)->next_pbuf; + + /* copy the original ip header back to the first pbuf */ + fraghdr = (struct ip_hdr *)(ipr->p->payload); + SMEMCPY(fraghdr, &ipr->iphdr, IP_HLEN); + IPH_LEN_SET(fraghdr, lwip_htons(datagram_len)); + IPH_OFFSET_SET(fraghdr, 0); + IPH_CHKSUM_SET(fraghdr, 0); + /* @todo: do we need to set/calculate the correct checksum? */ +#if CHECKSUM_GEN_IP + IF__NETIF_CHECKSUM_ENABLED(ip_current_input_netif(), NETIF_CHECKSUM_GEN_IP) { + IPH_CHKSUM_SET(fraghdr, inet_chksum(fraghdr, IP_HLEN)); + } +#endif /* CHECKSUM_GEN_IP */ + + p = ipr->p; + + /* chain together the pbufs contained within the reass_data list. */ + while (r != NULL) { + iprh = (struct ip_reass_helper *)r->payload; + + /* hide the ip header for every succeeding fragment */ + pbuf_remove_header(r, IP_HLEN); + pbuf_cat(p, r); + r = iprh->next_pbuf; + } + + /* find the previous entry in the linked list */ + if (ipr == reassdatagrams) { + ipr_prev = NULL; + } else { + for (ipr_prev = reassdatagrams; ipr_prev != NULL; ipr_prev = ipr_prev->next) { + if (ipr_prev->next == ipr) { + break; + } + } + } + + /* release the sources allocate for the fragment queue entry */ + ip_reass_dequeue_datagram(ipr, ipr_prev); + + /* and adjust the number of pbufs currently queued for reassembly. */ + clen = pbuf_clen(p); + LWIP_ASSERT("ip_reass_pbufcount >= clen", ip_reass_pbufcount >= clen); + ip_reass_pbufcount = (u16_t)(ip_reass_pbufcount - clen); + + MIB2_STATS_INC(mib2.ipreasmoks); + + /* Return the pbuf chain */ + return p; + } + /* the datagram is not (yet?) reassembled completely */ + LWIP_DEBUGF(IP_REASS_DEBUG, ("ip_reass_pbufcount: %d out\n", ip_reass_pbufcount)); + return NULL; + +nullreturn_ipr: + LWIP_ASSERT("ipr != NULL", ipr != NULL); + if (ipr->p == NULL) { + /* dropped pbuf after creating a new datagram entry: remove the entry, too */ + LWIP_ASSERT("not firstalthough just enqueued", ipr == reassdatagrams); + ip_reass_dequeue_datagram(ipr, NULL); + } + +nullreturn: + LWIP_DEBUGF(IP_REASS_DEBUG, ("ip4_reass: nullreturn\n")); + IPFRAG_STATS_INC(ip_frag.drop); + pbuf_free(p); + return NULL; +} +#endif /* IP_REASSEMBLY */ + +#if IP_FRAG +#if !LWIP_NETIF_TX_SINGLE_PBUF +/** Allocate a new struct pbuf_custom_ref */ +static struct pbuf_custom_ref * +ip_frag_alloc_pbuf_custom_ref(void) +{ + return (struct pbuf_custom_ref *)memp_malloc(MEMP_FRAG_PBUF); +} + +/** Free a struct pbuf_custom_ref */ +static void +ip_frag_free_pbuf_custom_ref(struct pbuf_custom_ref *p) +{ + LWIP_ASSERT("p != NULL", p != NULL); + memp_free(MEMP_FRAG_PBUF, p); +} + +/** Free-callback function to free a 'struct pbuf_custom_ref', called by + * pbuf_free. */ +static void +ipfrag_free_pbuf_custom(struct pbuf *p) +{ + struct pbuf_custom_ref *pcr = (struct pbuf_custom_ref *)p; + LWIP_ASSERT("pcr != NULL", pcr != NULL); + LWIP_ASSERT("pcr == p", (void *)pcr == (void *)p); + if (pcr->original != NULL) { + pbuf_free(pcr->original); + } + ip_frag_free_pbuf_custom_ref(pcr); +} +#endif /* !LWIP_NETIF_TX_SINGLE_PBUF */ + +/** + * Fragment an IP datagram if too large for the netif. + * + * Chop the datagram in MTU sized chunks and send them in order + * by pointing PBUF_REFs into p. + * + * @param p ip packet to send + * @param netif the netif on which to send + * @param dest destination ip address to which to send + * + * @return ERR_OK if sent successfully, err_t otherwise + */ +err_t +ip4_frag(struct pbuf *p, struct netif *netif, const ip4_addr_t *dest) +{ + struct pbuf *rambuf; +#if !LWIP_NETIF_TX_SINGLE_PBUF + struct pbuf *newpbuf; + u16_t newpbuflen = 0; + u16_t left_to_copy; +#endif + struct ip_hdr *original_iphdr; + struct ip_hdr *iphdr; + const u16_t nfb = (u16_t)((netif->mtu - IP_HLEN) / 8); + u16_t left, fragsize; + u16_t ofo; + int last; + u16_t poff = IP_HLEN; + u16_t tmp; + int mf_set; + + original_iphdr = (struct ip_hdr *)p->payload; + iphdr = original_iphdr; + if (IPH_HL_BYTES(iphdr) != IP_HLEN) { + /* ip4_frag() does not support IP options */ + return ERR_VAL; + } + LWIP_ERROR("ip4_frag(): pbuf too short", p->len >= IP_HLEN, return ERR_VAL); + + /* Save original offset */ + tmp = lwip_ntohs(IPH_OFFSET(iphdr)); + ofo = tmp & IP_OFFMASK; + /* already fragmented? if so, the last fragment we create must have MF, too */ + mf_set = tmp & IP_MF; + + left = (u16_t)(p->tot_len - IP_HLEN); + + while (left) { + /* Fill this fragment */ + fragsize = LWIP_MIN(left, (u16_t)(nfb * 8)); + +#if LWIP_NETIF_TX_SINGLE_PBUF + rambuf = pbuf_alloc(PBUF_IP, fragsize, PBUF_RAM); + if (rambuf == NULL) { + goto memerr; + } + LWIP_ASSERT("this needs a pbuf in one piece!", + (rambuf->len == rambuf->tot_len) && (rambuf->next == NULL)); + poff += pbuf_copy_partial(p, rambuf->payload, fragsize, poff); + /* make room for the IP header */ + if (pbuf_add_header(rambuf, IP_HLEN)) { + pbuf_free(rambuf); + goto memerr; + } + /* fill in the IP header */ + SMEMCPY(rambuf->payload, original_iphdr, IP_HLEN); + iphdr = (struct ip_hdr *)rambuf->payload; +#else /* LWIP_NETIF_TX_SINGLE_PBUF */ + /* When not using a static buffer, create a chain of pbufs. + * The first will be a PBUF_RAM holding the link and IP header. + * The rest will be PBUF_REFs mirroring the pbuf chain to be fragged, + * but limited to the size of an mtu. + */ + rambuf = pbuf_alloc(PBUF_LINK, IP_HLEN, PBUF_RAM); + if (rambuf == NULL) { + goto memerr; + } + LWIP_ASSERT("this needs a pbuf in one piece!", + (rambuf->len >= (IP_HLEN))); + SMEMCPY(rambuf->payload, original_iphdr, IP_HLEN); + iphdr = (struct ip_hdr *)rambuf->payload; + + left_to_copy = fragsize; + while (left_to_copy) { + struct pbuf_custom_ref *pcr; + u16_t plen = (u16_t)(p->len - poff); + LWIP_ASSERT("p->len >= poff", p->len >= poff); + newpbuflen = LWIP_MIN(left_to_copy, plen); + /* Is this pbuf already empty? */ + if (!newpbuflen) { + poff = 0; + p = p->next; + continue; + } + pcr = ip_frag_alloc_pbuf_custom_ref(); + if (pcr == NULL) { + pbuf_free(rambuf); + goto memerr; + } + /* Mirror this pbuf, although we might not need all of it. */ + newpbuf = pbuf_alloced_custom(PBUF_RAW, newpbuflen, PBUF_REF, &pcr->pc, + (u8_t *)p->payload + poff, newpbuflen); + if (newpbuf == NULL) { + ip_frag_free_pbuf_custom_ref(pcr); + pbuf_free(rambuf); + goto memerr; + } + pbuf_ref(p); + pcr->original = p; + pcr->pc.custom_free_function = ipfrag_free_pbuf_custom; + + /* Add it to end of rambuf's chain, but using pbuf_cat, not pbuf_chain + * so that it is removed when pbuf_dechain is later called on rambuf. + */ + pbuf_cat(rambuf, newpbuf); + left_to_copy = (u16_t)(left_to_copy - newpbuflen); + if (left_to_copy) { + poff = 0; + p = p->next; + } + } + poff = (u16_t)(poff + newpbuflen); +#endif /* LWIP_NETIF_TX_SINGLE_PBUF */ + + /* Correct header */ + last = (left <= netif->mtu - IP_HLEN); + + /* Set new offset and MF flag */ + tmp = (IP_OFFMASK & (ofo)); + if (!last || mf_set) { + /* the last fragment has MF set if the input frame had it */ + tmp = tmp | IP_MF; + } + IPH_OFFSET_SET(iphdr, lwip_htons(tmp)); + IPH_LEN_SET(iphdr, lwip_htons((u16_t)(fragsize + IP_HLEN))); + IPH_CHKSUM_SET(iphdr, 0); +#if CHECKSUM_GEN_IP + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_IP) { + IPH_CHKSUM_SET(iphdr, inet_chksum(iphdr, IP_HLEN)); + } +#endif /* CHECKSUM_GEN_IP */ + + /* No need for separate header pbuf - we allowed room for it in rambuf + * when allocated. + */ + netif->output(netif, rambuf, dest); + IPFRAG_STATS_INC(ip_frag.xmit); + + /* Unfortunately we can't reuse rambuf - the hardware may still be + * using the buffer. Instead we free it (and the ensuing chain) and + * recreate it next time round the loop. If we're lucky the hardware + * will have already sent the packet, the free will really free, and + * there will be zero memory penalty. + */ + + pbuf_free(rambuf); + left = (u16_t)(left - fragsize); + ofo = (u16_t)(ofo + nfb); + } + MIB2_STATS_INC(mib2.ipfragoks); + return ERR_OK; +memerr: + MIB2_STATS_INC(mib2.ipfragfails); + return ERR_MEM; +} +#endif /* IP_FRAG */ + +#endif /* LWIP_IPV4 */ diff --git a/middleware/lwip/src/core/ipv6/dhcp6.c b/middleware/lwip/src/core/ipv6/dhcp6.c new file mode 100644 index 0000000..ecf569a --- /dev/null +++ b/middleware/lwip/src/core/ipv6/dhcp6.c @@ -0,0 +1,821 @@ +/** + * @file + * + * @defgroup dhcp6 DHCPv6 + * @ingroup ip6 + * DHCPv6 client: IPv6 address autoconfiguration as per + * RFC 3315 (stateful DHCPv6) and + * RFC 3736 (stateless DHCPv6). + * + * For now, only stateless DHCPv6 is implemented! + * + * TODO: + * - enable/disable API to not always start when RA is received + * - stateful DHCPv6 (for now, only stateless DHCPv6 for DNS and NTP servers works) + * - create Client Identifier? + * - only start requests if a valid local address is available on the netif + * - only start information requests if required (not for every RA) + * + * dhcp6_enable_stateful() enables stateful DHCPv6 for a netif (stateless disabled)
+ * dhcp6_enable_stateless() enables stateless DHCPv6 for a netif (stateful disabled)
+ * dhcp6_disable() disable DHCPv6 for a netif + * + * When enabled, requests are only issued after receipt of RA with the + * corresponding bits set. + */ + +/* + * Copyright (c) 2018 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + */ + +#include "lwip/opt.h" + +#if LWIP_IPV6 && LWIP_IPV6_DHCP6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/dhcp6.h" +#include "lwip/prot/dhcp6.h" +#include "lwip/def.h" +#include "lwip/udp.h" +#include "lwip/dns.h" + +#include + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif +#ifndef LWIP_HOOK_DHCP6_APPEND_OPTIONS +#define LWIP_HOOK_DHCP6_APPEND_OPTIONS(netif, dhcp6, state, msg, msg_type, options_len_ptr, max_len) +#endif +#ifndef LWIP_HOOK_DHCP6_PARSE_OPTION +#define LWIP_HOOK_DHCP6_PARSE_OPTION(netif, dhcp6, state, msg, msg_type, option, len, pbuf, offset) do { LWIP_UNUSED_ARG(msg); } while(0) +#endif + +#if LWIP_DNS && LWIP_DHCP6_MAX_DNS_SERVERS +#if DNS_MAX_SERVERS > LWIP_DHCP6_MAX_DNS_SERVERS +#define LWIP_DHCP6_PROVIDE_DNS_SERVERS LWIP_DHCP6_MAX_DNS_SERVERS +#else +#define LWIP_DHCP6_PROVIDE_DNS_SERVERS DNS_MAX_SERVERS +#endif +#else +#define LWIP_DHCP6_PROVIDE_DNS_SERVERS 0 +#endif + + +/** Option handling: options are parsed in dhcp6_parse_reply + * and saved in an array where other functions can load them from. + * This might be moved into the struct dhcp6 (not necessarily since + * lwIP is single-threaded and the array is only used while in recv + * callback). */ +enum dhcp6_option_idx { + DHCP6_OPTION_IDX_CLI_ID = 0, + DHCP6_OPTION_IDX_SERVER_ID, +#if LWIP_DHCP6_PROVIDE_DNS_SERVERS + DHCP6_OPTION_IDX_DNS_SERVER, + DHCP6_OPTION_IDX_DOMAIN_LIST, +#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS */ +#if LWIP_DHCP6_GET_NTP_SRV + DHCP6_OPTION_IDX_NTP_SERVER, +#endif /* LWIP_DHCP_GET_NTP_SRV */ + DHCP6_OPTION_IDX_MAX +}; + +struct dhcp6_option_info { + u8_t option_given; + u16_t val_start; + u16_t val_length; +}; + +/** Holds the decoded option info, only valid while in dhcp6_recv. */ +struct dhcp6_option_info dhcp6_rx_options[DHCP6_OPTION_IDX_MAX]; + +#define dhcp6_option_given(dhcp6, idx) (dhcp6_rx_options[idx].option_given != 0) +#define dhcp6_got_option(dhcp6, idx) (dhcp6_rx_options[idx].option_given = 1) +#define dhcp6_clear_option(dhcp6, idx) (dhcp6_rx_options[idx].option_given = 0) +#define dhcp6_clear_all_options(dhcp6) (memset(dhcp6_rx_options, 0, sizeof(dhcp6_rx_options))) +#define dhcp6_get_option_start(dhcp6, idx) (dhcp6_rx_options[idx].val_start) +#define dhcp6_get_option_length(dhcp6, idx) (dhcp6_rx_options[idx].val_length) +#define dhcp6_set_option(dhcp6, idx, start, len) do { dhcp6_rx_options[idx].val_start = (start); dhcp6_rx_options[idx].val_length = (len); }while(0) + + +const ip_addr_t dhcp6_All_DHCP6_Relay_Agents_and_Servers = IPADDR6_INIT_HOST(0xFF020000, 0, 0, 0x00010002); +const ip_addr_t dhcp6_All_DHCP6_Servers = IPADDR6_INIT_HOST(0xFF020000, 0, 0, 0x00010003); + +static struct udp_pcb *dhcp6_pcb; +static u8_t dhcp6_pcb_refcount; + + +/* receive, unfold, parse and free incoming messages */ +static void dhcp6_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port); + +/** Ensure DHCP PCB is allocated and bound */ +static err_t +dhcp6_inc_pcb_refcount(void) +{ + if (dhcp6_pcb_refcount == 0) { + LWIP_ASSERT("dhcp6_inc_pcb_refcount(): memory leak", dhcp6_pcb == NULL); + + /* allocate UDP PCB */ + dhcp6_pcb = udp_new_ip6(); + + if (dhcp6_pcb == NULL) { + return ERR_MEM; + } + + ip_set_option(dhcp6_pcb, SOF_BROADCAST); + + /* set up local and remote port for the pcb -> listen on all interfaces on all src/dest IPs */ + udp_bind(dhcp6_pcb, IP6_ADDR_ANY, DHCP6_CLIENT_PORT); + udp_recv(dhcp6_pcb, dhcp6_recv, NULL); + } + + dhcp6_pcb_refcount++; + + return ERR_OK; +} + +/** Free DHCP PCB if the last netif stops using it */ +static void +dhcp6_dec_pcb_refcount(void) +{ + LWIP_ASSERT("dhcp6_pcb_refcount(): refcount error", (dhcp6_pcb_refcount > 0)); + dhcp6_pcb_refcount--; + + if (dhcp6_pcb_refcount == 0) { + udp_remove(dhcp6_pcb); + dhcp6_pcb = NULL; + } +} + +/** + * @ingroup dhcp6 + * Set a statically allocated struct dhcp6 to work with. + * Using this prevents dhcp6_start to allocate it using mem_malloc. + * + * @param netif the netif for which to set the struct dhcp + * @param dhcp6 (uninitialised) dhcp6 struct allocated by the application + */ +void +dhcp6_set_struct(struct netif *netif, struct dhcp6 *dhcp6) +{ + LWIP_ASSERT("netif != NULL", netif != NULL); + LWIP_ASSERT("dhcp6 != NULL", dhcp6 != NULL); + LWIP_ASSERT("netif already has a struct dhcp6 set", netif_dhcp6_data(netif) == NULL); + + /* clear data structure */ + memset(dhcp6, 0, sizeof(struct dhcp6)); + /* dhcp6_set_state(&dhcp, DHCP6_STATE_OFF); */ + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, dhcp6); +} + +/** + * @ingroup dhcp6 + * Removes a struct dhcp6 from a netif. + * + * ATTENTION: Only use this when not using dhcp6_set_struct() to allocate the + * struct dhcp6 since the memory is passed back to the heap. + * + * @param netif the netif from which to remove the struct dhcp + */ +void dhcp6_cleanup(struct netif *netif) +{ + LWIP_ASSERT("netif != NULL", netif != NULL); + + if (netif_dhcp6_data(netif) != NULL) { + mem_free(netif_dhcp6_data(netif)); + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, NULL); + } +} + +static struct dhcp6* +dhcp6_get_struct(struct netif *netif, const char *dbg_requester) +{ + struct dhcp6 *dhcp6 = netif_dhcp6_data(netif); + if (dhcp6 == NULL) { + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("%s: mallocing new DHCPv6 client\n", dbg_requester)); + dhcp6 = (struct dhcp6 *)mem_malloc(sizeof(struct dhcp6)); + if (dhcp6 == NULL) { + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("%s: could not allocate dhcp6\n", dbg_requester)); + return NULL; + } + + /* clear data structure, this implies DHCP6_STATE_OFF */ + memset(dhcp6, 0, sizeof(struct dhcp6)); + /* store this dhcp6 client in the netif */ + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, dhcp6); + } else { + /* already has DHCP6 client attached */ + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("%s: using existing DHCPv6 client\n", dbg_requester)); + } + + if (!dhcp6->pcb_allocated) { + if (dhcp6_inc_pcb_refcount() != ERR_OK) { /* ensure DHCP6 PCB is allocated */ + mem_free(dhcp6); + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, NULL); + return NULL; + } + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("%s: allocated dhcp6", dbg_requester)); + dhcp6->pcb_allocated = 1; + } + return dhcp6; +} + +/* + * Set the DHCPv6 state + * If the state changed, reset the number of tries. + */ +static void +dhcp6_set_state(struct dhcp6 *dhcp6, u8_t new_state, const char *dbg_caller) +{ + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("DHCPv6 state: %d -> %d (%s)\n", + dhcp6->state, new_state, dbg_caller)); + if (new_state != dhcp6->state) { + dhcp6->state = new_state; + dhcp6->tries = 0; + dhcp6->request_timeout = 0; + } +} + +static int +dhcp6_stateless_enabled(struct dhcp6 *dhcp6) +{ + if ((dhcp6->state == DHCP6_STATE_STATELESS_IDLE) || + (dhcp6->state == DHCP6_STATE_REQUESTING_CONFIG)) { + return 1; + } + return 0; +} + +/*static int +dhcp6_stateful_enabled(struct dhcp6 *dhcp6) +{ + if (dhcp6->state == DHCP6_STATE_OFF) { + return 0; + } + if (dhcp6_stateless_enabled(dhcp6)) { + return 0; + } + return 1; +}*/ + +/** + * @ingroup dhcp6 + * Enable stateful DHCPv6 on this netif + * Requests are sent on receipt of an RA message with the + * ND6_RA_FLAG_MANAGED_ADDR_CONFIG flag set. + * + * A struct dhcp6 will be allocated for this netif if not + * set via @ref dhcp6_set_struct before. + * + * @todo: stateful DHCPv6 not supported, yet + */ +err_t +dhcp6_enable_stateful(struct netif *netif) +{ + LWIP_UNUSED_ARG(netif); + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("stateful dhcp6 not implemented yet")); + return ERR_VAL; +} + +/** + * @ingroup dhcp6 + * Enable stateless DHCPv6 on this netif + * Requests are sent on receipt of an RA message with the + * ND6_RA_FLAG_OTHER_CONFIG flag set. + * + * A struct dhcp6 will be allocated for this netif if not + * set via @ref dhcp6_set_struct before. + */ +err_t +dhcp6_enable_stateless(struct netif *netif) +{ + struct dhcp6 *dhcp6; + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp6_enable_stateless(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); + + dhcp6 = dhcp6_get_struct(netif, "dhcp6_enable_stateless()"); + if (dhcp6 == NULL) { + return ERR_MEM; + } + if (dhcp6_stateless_enabled(dhcp6)) { + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp6_enable_stateless(): stateless DHCPv6 already enabled")); + return ERR_OK; + } else if (dhcp6->state != DHCP6_STATE_OFF) { + /* stateful running */ + /* @todo: stop stateful once it is implemented */ + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp6_enable_stateless(): switching from stateful to stateless DHCPv6")); + } + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp6_enable_stateless(): stateless DHCPv6 enabled\n")); + dhcp6_set_state(dhcp6, DHCP6_STATE_STATELESS_IDLE, "dhcp6_enable_stateless"); + return ERR_OK; +} + +/** + * @ingroup dhcp6 + * Disable stateful or stateless DHCPv6 on this netif + * Requests are sent on receipt of an RA message with the + * ND6_RA_FLAG_OTHER_CONFIG flag set. + */ +void +dhcp6_disable(struct netif *netif) +{ + struct dhcp6 *dhcp6; + + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp6_disable(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); + + dhcp6 = netif_dhcp6_data(netif); + if (dhcp6 != NULL) { + if (dhcp6->state != DHCP6_STATE_OFF) { + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("dhcp6_disable(): DHCPv6 disabled (old state: %s)\n", + (dhcp6_stateless_enabled(dhcp6) ? "stateless" : "stateful"))); + dhcp6_set_state(dhcp6, DHCP6_STATE_OFF, "dhcp6_disable"); + if (dhcp6->pcb_allocated != 0) { + dhcp6_dec_pcb_refcount(); /* free DHCPv6 PCB if not needed any more */ + dhcp6->pcb_allocated = 0; + } + } + } +} + +/** + * Create a DHCPv6 request, fill in common headers + * + * @param netif the netif under DHCPv6 control + * @param dhcp6 dhcp6 control struct + * @param message_type message type of the request + * @param opt_len_alloc option length to allocate + * @param options_out_len option length on exit + * @return a pbuf for the message + */ +static struct pbuf * +dhcp6_create_msg(struct netif *netif, struct dhcp6 *dhcp6, u8_t message_type, + u16_t opt_len_alloc, u16_t *options_out_len) +{ + struct pbuf *p_out; + struct dhcp6_msg *msg_out; + + LWIP_ERROR("dhcp6_create_msg: netif != NULL", (netif != NULL), return NULL;); + LWIP_ERROR("dhcp6_create_msg: dhcp6 != NULL", (dhcp6 != NULL), return NULL;); + p_out = pbuf_alloc(PBUF_TRANSPORT, sizeof(struct dhcp6_msg) + opt_len_alloc, PBUF_RAM); + if (p_out == NULL) { + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, + ("dhcp6_create_msg(): could not allocate pbuf\n")); + return NULL; + } + LWIP_ASSERT("dhcp6_create_msg: check that first pbuf can hold struct dhcp6_msg", + (p_out->len >= sizeof(struct dhcp6_msg) + opt_len_alloc)); + + /* @todo: limit new xid for certain message types? */ + /* reuse transaction identifier in retransmissions */ + if (dhcp6->tries == 0) { + dhcp6->xid = LWIP_RAND() & 0xFFFFFF; + } + + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, + ("transaction id xid(%"X32_F")\n", dhcp6->xid)); + + msg_out = (struct dhcp6_msg *)p_out->payload; + memset(msg_out, 0, sizeof(struct dhcp6_msg) + opt_len_alloc); + + msg_out->msgtype = message_type; + msg_out->transaction_id[0] = (u8_t)(dhcp6->xid >> 16); + msg_out->transaction_id[1] = (u8_t)(dhcp6->xid >> 8); + msg_out->transaction_id[2] = (u8_t)dhcp6->xid; + *options_out_len = 0; + return p_out; +} + +static u16_t +dhcp6_option_short(u16_t options_out_len, u8_t *options, u16_t value) +{ + options[options_out_len++] = (u8_t)((value & 0xff00U) >> 8); + options[options_out_len++] = (u8_t) (value & 0x00ffU); + return options_out_len; +} + +static u16_t +dhcp6_option_optionrequest(u16_t options_out_len, u8_t *options, const u16_t *req_options, + u16_t num_req_options, u16_t max_len) +{ + size_t i; + u16_t ret; + + LWIP_ASSERT("dhcp6_option_optionrequest: options_out_len + sizeof(struct dhcp6_msg) + addlen <= max_len", + sizeof(struct dhcp6_msg) + options_out_len + 4U + (2U * num_req_options) <= max_len); + LWIP_UNUSED_ARG(max_len); + + ret = dhcp6_option_short(options_out_len, options, DHCP6_OPTION_ORO); + ret = dhcp6_option_short(ret, options, 2 * num_req_options); + for (i = 0; i < num_req_options; i++) { + ret = dhcp6_option_short(ret, options, req_options[i]); + } + return ret; +} + +/* All options are added, shrink the pbuf to the required size */ +static void +dhcp6_msg_finalize(u16_t options_out_len, struct pbuf *p_out) +{ + /* shrink the pbuf to the actual content length */ + pbuf_realloc(p_out, (u16_t)(sizeof(struct dhcp6_msg) + options_out_len)); +} + + +#if LWIP_IPV6_DHCP6_STATELESS +static void +dhcp6_information_request(struct netif *netif, struct dhcp6 *dhcp6) +{ + const u16_t requested_options[] = { +#if LWIP_DHCP6_PROVIDE_DNS_SERVERS + DHCP6_OPTION_DNS_SERVERS, + DHCP6_OPTION_DOMAIN_LIST +#endif +#if LWIP_DHCP6_GET_NTP_SRV + , DHCP6_OPTION_SNTP_SERVERS +#endif + }; + + u16_t msecs; + struct pbuf *p_out; + u16_t options_out_len; + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("dhcp6_information_request()\n")); + /* create and initialize the DHCP message header */ + p_out = dhcp6_create_msg(netif, dhcp6, DHCP6_INFOREQUEST, 4 + sizeof(requested_options), &options_out_len); + if (p_out != NULL) { + err_t err; + struct dhcp6_msg *msg_out = (struct dhcp6_msg *)p_out->payload; + u8_t *options = (u8_t *)(msg_out + 1); + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("dhcp6_information_request: making request\n")); + + options_out_len = dhcp6_option_optionrequest(options_out_len, options, requested_options, + LWIP_ARRAYSIZE(requested_options), p_out->len); + LWIP_HOOK_DHCP6_APPEND_OPTIONS(netif, dhcp6, DHCP6_STATE_REQUESTING_CONFIG, msg_out, + DHCP6_INFOREQUEST, options_out_len, p_out->len); + dhcp6_msg_finalize(options_out_len, p_out); + + err = udp_sendto_if(dhcp6_pcb, p_out, &dhcp6_All_DHCP6_Relay_Agents_and_Servers, DHCP6_SERVER_PORT, netif); + pbuf_free(p_out); + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp6_information_request: INFOREQUESTING -> %d\n", (int)err)); + LWIP_UNUSED_ARG(err); + } else { + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp6_information_request: could not allocate DHCP6 request\n")); + } + dhcp6_set_state(dhcp6, DHCP6_STATE_REQUESTING_CONFIG, "dhcp6_information_request"); + if (dhcp6->tries < 255) { + dhcp6->tries++; + } + msecs = (u16_t)((dhcp6->tries < 6 ? 1 << dhcp6->tries : 60) * 1000); + dhcp6->request_timeout = (u16_t)((msecs + DHCP6_TIMER_MSECS - 1) / DHCP6_TIMER_MSECS); + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp6_information_request(): set request timeout %"U16_F" msecs\n", msecs)); +} + +static err_t +dhcp6_request_config(struct netif *netif, struct dhcp6 *dhcp6) +{ + /* stateless mode enabled and no request running? */ + if (dhcp6->state == DHCP6_STATE_STATELESS_IDLE) { + /* send Information-request and wait for answer; setup receive timeout */ + dhcp6_information_request(netif, dhcp6); + } + + return ERR_OK; +} + +static void +dhcp6_abort_config_request(struct dhcp6 *dhcp6) +{ + if (dhcp6->state == DHCP6_STATE_REQUESTING_CONFIG) { + /* abort running request */ + dhcp6_set_state(dhcp6, DHCP6_STATE_STATELESS_IDLE, "dhcp6_abort_config_request"); + } +} + +/* Handle a REPLY to INFOREQUEST + * This parses DNS and NTP server addresses from the reply. + */ +static void +dhcp6_handle_config_reply(struct netif *netif, struct pbuf *p_msg_in) +{ + struct dhcp6 *dhcp6 = netif_dhcp6_data(netif); + + LWIP_UNUSED_ARG(dhcp6); + LWIP_UNUSED_ARG(p_msg_in); + +#if LWIP_DHCP6_PROVIDE_DNS_SERVERS + if (dhcp6_option_given(dhcp6, DHCP6_OPTION_IDX_DNS_SERVER)) { + ip_addr_t dns_addr; + ip6_addr_t *dns_addr6; + u16_t op_start = dhcp6_get_option_start(dhcp6, DHCP6_OPTION_IDX_DNS_SERVER); + u16_t op_len = dhcp6_get_option_length(dhcp6, DHCP6_OPTION_IDX_DNS_SERVER); + u16_t idx; + u8_t n; + + ip_addr_set_zero_ip6(&dns_addr); + dns_addr6 = ip_2_ip6(&dns_addr); + for (n = 0, idx = op_start; (idx < op_start + op_len) && (n < LWIP_DHCP6_PROVIDE_DNS_SERVERS); + n++, idx += sizeof(struct ip6_addr_packed)) { + u16_t copied = pbuf_copy_partial(p_msg_in, dns_addr6, sizeof(struct ip6_addr_packed), idx); + if (copied != sizeof(struct ip6_addr_packed)) { + /* pbuf length mismatch */ + return; + } + ip6_addr_assign_zone(dns_addr6, IP6_UNKNOWN, netif); + /* @todo: do we need a different offset than DHCP(v4)? */ + dns_setserver(n, &dns_addr); + } + } + /* @ todo: parse and set Domain Search List */ +#endif /* LWIP_DHCP6_PROVIDE_DNS_SERVERS */ + +#if LWIP_DHCP6_GET_NTP_SRV + if (dhcp6_option_given(dhcp6, DHCP6_OPTION_IDX_NTP_SERVER)) { + ip_addr_t ntp_server_addrs[LWIP_DHCP6_MAX_NTP_SERVERS]; + u16_t op_start = dhcp6_get_option_start(dhcp6, DHCP6_OPTION_IDX_NTP_SERVER); + u16_t op_len = dhcp6_get_option_length(dhcp6, DHCP6_OPTION_IDX_NTP_SERVER); + u16_t idx; + u8_t n; + + for (n = 0, idx = op_start; (idx < op_start + op_len) && (n < LWIP_DHCP6_MAX_NTP_SERVERS); + n++, idx += sizeof(struct ip6_addr_packed)) { + u16_t copied; + ip6_addr_t *ntp_addr6 = ip_2_ip6(&ntp_server_addrs[n]); + ip_addr_set_zero_ip6(&ntp_server_addrs[n]); + copied = pbuf_copy_partial(p_msg_in, ntp_addr6, sizeof(struct ip6_addr_packed), idx); + if (copied != sizeof(struct ip6_addr_packed)) { + /* pbuf length mismatch */ + return; + } + ip6_addr_assign_zone(ntp_addr6, IP6_UNKNOWN, netif); + } + dhcp6_set_ntp_servers(n, ntp_server_addrs); + } +#endif /* LWIP_DHCP6_GET_NTP_SRV */ +} +#endif /* LWIP_IPV6_DHCP6_STATELESS */ + +/** This function is called from nd6 module when an RA message is received + * It triggers DHCPv6 requests (if enabled). + */ +void +dhcp6_nd6_ra_trigger(struct netif *netif, u8_t managed_addr_config, u8_t other_config) +{ + struct dhcp6 *dhcp6; + + LWIP_ASSERT("netif != NULL", netif != NULL); + dhcp6 = netif_dhcp6_data(netif); + + LWIP_UNUSED_ARG(managed_addr_config); + LWIP_UNUSED_ARG(other_config); + LWIP_UNUSED_ARG(dhcp6); + +#if LWIP_IPV6_DHCP6_STATELESS + if (dhcp6 != NULL) { + if (dhcp6_stateless_enabled(dhcp6)) { + if (other_config) { + dhcp6_request_config(netif, dhcp6); + } else { + dhcp6_abort_config_request(dhcp6); + } + } + } +#endif /* LWIP_IPV6_DHCP6_STATELESS */ +} + +/** + * Parse the DHCPv6 message and extract the DHCPv6 options. + * + * Extract the DHCPv6 options (offset + length) so that we can later easily + * check for them or extract the contents. + */ +static err_t +dhcp6_parse_reply(struct pbuf *p, struct dhcp6 *dhcp6) +{ + u16_t offset; + u16_t offset_max; + u16_t options_idx; + struct dhcp6_msg *msg_in; + + LWIP_UNUSED_ARG(dhcp6); + + /* clear received options */ + dhcp6_clear_all_options(dhcp6); + msg_in = (struct dhcp6_msg *)p->payload; + + /* parse options */ + + options_idx = sizeof(struct dhcp6_msg); + /* parse options to the end of the received packet */ + offset_max = p->tot_len; + + offset = options_idx; + /* at least 4 byte to read? */ + while ((offset + 4 <= offset_max)) { + u8_t op_len_buf[4]; + u8_t *op_len; + u16_t op; + u16_t len; + u16_t val_offset = (u16_t)(offset + 4); + if (val_offset < offset) { + /* overflow */ + return ERR_BUF; + } + /* copy option + length, might be split across pbufs */ + op_len = (u8_t *)pbuf_get_contiguous(p, op_len_buf, 4, 4, offset); + if (op_len == NULL) { + /* failed to get option and length */ + return ERR_VAL; + } + op = (op_len[0] << 8) | op_len[1]; + len = (op_len[2] << 8) | op_len[3]; + offset = val_offset + len; + if (offset < val_offset) { + /* overflow */ + return ERR_BUF; + } + + switch (op) { + case (DHCP6_OPTION_CLIENTID): + dhcp6_got_option(dhcp6, DHCP6_OPTION_IDX_CLI_ID); + dhcp6_set_option(dhcp6, DHCP6_OPTION_IDX_CLI_ID, val_offset, len); + break; + case (DHCP6_OPTION_SERVERID): + dhcp6_got_option(dhcp6, DHCP6_OPTION_IDX_SERVER_ID); + dhcp6_set_option(dhcp6, DHCP6_OPTION_IDX_SERVER_ID, val_offset, len); + break; +#if LWIP_DHCP6_PROVIDE_DNS_SERVERS + case (DHCP6_OPTION_DNS_SERVERS): + dhcp6_got_option(dhcp6, DHCP6_OPTION_IDX_DNS_SERVER); + dhcp6_set_option(dhcp6, DHCP6_OPTION_IDX_DNS_SERVER, val_offset, len); + break; + case (DHCP6_OPTION_DOMAIN_LIST): + dhcp6_got_option(dhcp6, DHCP6_OPTION_IDX_DOMAIN_LIST); + dhcp6_set_option(dhcp6, DHCP6_OPTION_IDX_DOMAIN_LIST, val_offset, len); + break; +#endif /* LWIP_DHCP6_PROVIDE_DNS_SERVERS */ +#if LWIP_DHCP6_GET_NTP_SRV + case (DHCP6_OPTION_SNTP_SERVERS): + dhcp6_got_option(dhcp6, DHCP6_OPTION_IDX_NTP_SERVER); + dhcp6_set_option(dhcp6, DHCP6_OPTION_IDX_NTP_SERVER, val_offset, len); + break; +#endif /* LWIP_DHCP6_GET_NTP_SRV*/ + default: + LWIP_DEBUGF(DHCP6_DEBUG, ("skipping option %"U16_F" in options\n", op)); + LWIP_HOOK_DHCP6_PARSE_OPTION(ip_current_netif(), dhcp6, dhcp6->state, msg_in, + msg_in->msgtype, op, len, q, val_offset); + break; + } + } + return ERR_OK; +} + +static void +dhcp6_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) +{ + struct netif *netif = ip_current_input_netif(); + struct dhcp6 *dhcp6 = netif_dhcp6_data(netif); + struct dhcp6_msg *reply_msg = (struct dhcp6_msg *)p->payload; + u8_t msg_type; + u32_t xid; + + LWIP_UNUSED_ARG(arg); + + /* Caught DHCPv6 message from netif that does not have DHCPv6 enabled? -> not interested */ + if ((dhcp6 == NULL) || (dhcp6->pcb_allocated == 0)) { + goto free_pbuf_and_return; + } + + LWIP_ERROR("invalid server address type", IP_IS_V6(addr), goto free_pbuf_and_return;); + + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("dhcp6_recv(pbuf = %p) from DHCPv6 server %s port %"U16_F"\n", (void *)p, + ipaddr_ntoa(addr), port)); + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("pbuf->len = %"U16_F"\n", p->len)); + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("pbuf->tot_len = %"U16_F"\n", p->tot_len)); + /* prevent warnings about unused arguments */ + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(addr); + LWIP_UNUSED_ARG(port); + + if (p->len < sizeof(struct dhcp6_msg)) { + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("DHCPv6 reply message or pbuf too short\n")); + goto free_pbuf_and_return; + } + + /* match transaction ID against what we expected */ + xid = reply_msg->transaction_id[0] << 16; + xid |= reply_msg->transaction_id[1] << 8; + xid |= reply_msg->transaction_id[2]; + if (xid != dhcp6->xid) { + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, + ("transaction id mismatch reply_msg->xid(%"X32_F")!= dhcp6->xid(%"X32_F")\n", xid, dhcp6->xid)); + goto free_pbuf_and_return; + } + /* option fields could be unfold? */ + if (dhcp6_parse_reply(p, dhcp6) != ERR_OK) { + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, + ("problem unfolding DHCPv6 message - too short on memory?\n")); + goto free_pbuf_and_return; + } + + /* read DHCP message type */ + msg_type = reply_msg->msgtype; + /* message type is DHCP6 REPLY? */ + if (msg_type == DHCP6_REPLY) { + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("DHCP6_REPLY received\n")); +#if LWIP_IPV6_DHCP6_STATELESS + /* in info-requesting state? */ + if (dhcp6->state == DHCP6_STATE_REQUESTING_CONFIG) { + dhcp6_set_state(dhcp6, DHCP6_STATE_STATELESS_IDLE, "dhcp6_recv"); + dhcp6_handle_config_reply(netif, p); + } else +#endif /* LWIP_IPV6_DHCP6_STATELESS */ + { + /* @todo: handle reply in other states? */ + } + } else { + /* @todo: handle other message types */ + } + +free_pbuf_and_return: + pbuf_free(p); +} + +/** + * A DHCPv6 request has timed out. + * + * The timer that was started with the DHCPv6 request has + * timed out, indicating no response was received in time. + */ +static void +dhcp6_timeout(struct netif *netif, struct dhcp6 *dhcp6) +{ + LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp6_timeout()\n")); + + LWIP_UNUSED_ARG(netif); + LWIP_UNUSED_ARG(dhcp6); + +#if LWIP_IPV6_DHCP6_STATELESS + /* back-off period has passed, or server selection timed out */ + if (dhcp6->state == DHCP6_STATE_REQUESTING_CONFIG) { + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("dhcp6_timeout(): retrying information request\n")); + dhcp6_information_request(netif, dhcp6); + } +#endif /* LWIP_IPV6_DHCP6_STATELESS */ +} + +/** + * DHCPv6 timeout handling (this function must be called every 500ms, + * see @ref DHCP6_TIMER_MSECS). + * + * A DHCPv6 server is expected to respond within a short period of time. + * This timer checks whether an outstanding DHCPv6 request is timed out. + */ +void +dhcp6_tmr(void) +{ + struct netif *netif; + /* loop through netif's */ + NETIF_FOREACH(netif) { + struct dhcp6 *dhcp6 = netif_dhcp6_data(netif); + /* only act on DHCPv6 configured interfaces */ + if (dhcp6 != NULL) { + /* timer is active (non zero), and is about to trigger now */ + if (dhcp6->request_timeout > 1) { + dhcp6->request_timeout--; + } else if (dhcp6->request_timeout == 1) { + dhcp6->request_timeout--; + /* { dhcp6->request_timeout == 0 } */ + LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp6_tmr(): request timeout\n")); + /* this client's request timeout triggered */ + dhcp6_timeout(netif, dhcp6); + } + } + } +} + +#endif /* LWIP_IPV6 && LWIP_IPV6_DHCP6 */ diff --git a/middleware/lwip/src/core/ipv6/ethip6.c b/middleware/lwip/src/core/ipv6/ethip6.c new file mode 100644 index 0000000..fec8b28 --- /dev/null +++ b/middleware/lwip/src/core/ipv6/ethip6.c @@ -0,0 +1,123 @@ +/** + * @file + * + * Ethernet output for IPv6. Uses ND tables for link-layer addressing. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV6 && LWIP_ETHERNET + +#include "lwip/ethip6.h" +#include "lwip/nd6.h" +#include "lwip/pbuf.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/inet_chksum.h" +#include "lwip/netif.h" +#include "lwip/icmp6.h" +#include "lwip/prot/ethernet.h" +#include "netif/ethernet.h" + +#include + +/** + * Resolve and fill-in Ethernet address header for outgoing IPv6 packet. + * + * For IPv6 multicast, corresponding Ethernet addresses + * are selected and the packet is transmitted on the link. + * + * For unicast addresses, ask the ND6 module what to do. It will either let us + * send the the packet right away, or queue the packet for later itself, unless + * an error occurs. + * + * @todo anycast addresses + * + * @param netif The lwIP network interface which the IP packet will be sent on. + * @param q The pbuf(s) containing the IP packet to be sent. + * @param ip6addr The IP address of the packet destination. + * + * @return + * - ERR_OK or the return value of @ref nd6_get_next_hop_addr_or_queue. + */ +err_t +ethip6_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr) +{ + struct eth_addr dest; + const u8_t *hwaddr; + err_t result; + + LWIP_ASSERT_CORE_LOCKED(); + + /* The destination IP address must be properly zoned from here on down. */ + IP6_ADDR_ZONECHECK_NETIF(ip6addr, netif); + + /* multicast destination IP address? */ + if (ip6_addr_ismulticast(ip6addr)) { + /* Hash IP multicast address to MAC address.*/ + dest.addr[0] = 0x33; + dest.addr[1] = 0x33; + dest.addr[2] = ((const u8_t *)(&(ip6addr->addr[3])))[0]; + dest.addr[3] = ((const u8_t *)(&(ip6addr->addr[3])))[1]; + dest.addr[4] = ((const u8_t *)(&(ip6addr->addr[3])))[2]; + dest.addr[5] = ((const u8_t *)(&(ip6addr->addr[3])))[3]; + + /* Send out. */ + return ethernet_output(netif, q, (const struct eth_addr*)(netif->hwaddr), &dest, ETHTYPE_IPV6); + } + + /* We have a unicast destination IP address */ + /* @todo anycast? */ + + /* Ask ND6 what to do with the packet. */ + result = nd6_get_next_hop_addr_or_queue(netif, q, ip6addr, &hwaddr); + if (result != ERR_OK) { + return result; + } + + /* If no hardware address is returned, nd6 has queued the packet for later. */ + if (hwaddr == NULL) { + return ERR_OK; + } + + /* Send out the packet using the returned hardware address. */ + SMEMCPY(dest.addr, hwaddr, 6); + return ethernet_output(netif, q, (const struct eth_addr*)(netif->hwaddr), &dest, ETHTYPE_IPV6); +} + +#endif /* LWIP_IPV6 && LWIP_ETHERNET */ diff --git a/middleware/lwip/src/core/ipv6/icmp6.c b/middleware/lwip/src/core/ipv6/icmp6.c new file mode 100644 index 0000000..ed0bd7b --- /dev/null +++ b/middleware/lwip/src/core/ipv6/icmp6.c @@ -0,0 +1,425 @@ +/** + * @file + * + * IPv6 version of ICMP, as per RFC 4443. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#include "lwip/opt.h" + +#if LWIP_ICMP6 && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/icmp6.h" +#include "lwip/prot/icmp6.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/inet_chksum.h" +#include "lwip/pbuf.h" +#include "lwip/netif.h" +#include "lwip/nd6.h" +#include "lwip/mld6.h" +#include "lwip/ip.h" +#include "lwip/stats.h" + +#include + +#if !LWIP_ICMP6_DATASIZE || (LWIP_ICMP6_DATASIZE > (IP6_MIN_MTU_LENGTH - IP6_HLEN - ICMP6_HLEN)) +#undef LWIP_ICMP6_DATASIZE +#define LWIP_ICMP6_DATASIZE (IP6_MIN_MTU_LENGTH - IP6_HLEN - ICMP6_HLEN) +#endif + +/* Forward declarations */ +static void icmp6_send_response(struct pbuf *p, u8_t code, u32_t data, u8_t type); +static void icmp6_send_response_with_addrs(struct pbuf *p, u8_t code, u32_t data, + u8_t type, const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr); +static void icmp6_send_response_with_addrs_and_netif(struct pbuf *p, u8_t code, u32_t data, + u8_t type, const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr, struct netif *netif); + + +/** + * Process an input ICMPv6 message. Called by ip6_input. + * + * Will generate a reply for echo requests. Other messages are forwarded + * to nd6_input, or mld6_input. + * + * @param p the mld packet, p->payload pointing to the icmpv6 header + * @param inp the netif on which this packet was received + */ +void +icmp6_input(struct pbuf *p, struct netif *inp) +{ + struct icmp6_hdr *icmp6hdr; + struct pbuf *r; + const ip6_addr_t *reply_src; + + ICMP6_STATS_INC(icmp6.recv); + + /* Check that ICMPv6 header fits in payload */ + if (p->len < sizeof(struct icmp6_hdr)) { + /* drop short packets */ + pbuf_free(p); + ICMP6_STATS_INC(icmp6.lenerr); + ICMP6_STATS_INC(icmp6.drop); + return; + } + + icmp6hdr = (struct icmp6_hdr *)p->payload; + +#if CHECKSUM_CHECK_ICMP6 + IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_CHECK_ICMP6) { + if (ip6_chksum_pseudo(p, IP6_NEXTH_ICMP6, p->tot_len, ip6_current_src_addr(), + ip6_current_dest_addr()) != 0) { + /* Checksum failed */ + pbuf_free(p); + ICMP6_STATS_INC(icmp6.chkerr); + ICMP6_STATS_INC(icmp6.drop); + return; + } + } +#endif /* CHECKSUM_CHECK_ICMP6 */ + + switch (icmp6hdr->type) { + case ICMP6_TYPE_NA: /* Neighbor advertisement */ + case ICMP6_TYPE_NS: /* Neighbor solicitation */ + case ICMP6_TYPE_RA: /* Router advertisement */ + case ICMP6_TYPE_RD: /* Redirect */ + case ICMP6_TYPE_PTB: /* Packet too big */ + nd6_input(p, inp); + return; + case ICMP6_TYPE_RS: +#if LWIP_IPV6_FORWARD + /* @todo implement router functionality */ +#endif + break; +#if LWIP_IPV6_MLD + case ICMP6_TYPE_MLQ: + case ICMP6_TYPE_MLR: + case ICMP6_TYPE_MLD: + mld6_input(p, inp); + return; +#endif + case ICMP6_TYPE_EREQ: +#if !LWIP_MULTICAST_PING + /* multicast destination address? */ + if (ip6_addr_ismulticast(ip6_current_dest_addr())) { + /* drop */ + pbuf_free(p); + ICMP6_STATS_INC(icmp6.drop); + return; + } +#endif /* LWIP_MULTICAST_PING */ + + /* Allocate reply. */ + r = pbuf_alloc(PBUF_IP, p->tot_len, PBUF_RAM); + if (r == NULL) { + /* drop */ + pbuf_free(p); + ICMP6_STATS_INC(icmp6.memerr); + return; + } + + /* Copy echo request. */ + if (pbuf_copy(r, p) != ERR_OK) { + /* drop */ + pbuf_free(p); + pbuf_free(r); + ICMP6_STATS_INC(icmp6.err); + return; + } + + /* Determine reply source IPv6 address. */ +#if LWIP_MULTICAST_PING + if (ip6_addr_ismulticast(ip6_current_dest_addr())) { + reply_src = ip_2_ip6(ip6_select_source_address(inp, ip6_current_src_addr())); + if (reply_src == NULL) { + /* drop */ + pbuf_free(p); + pbuf_free(r); + ICMP6_STATS_INC(icmp6.rterr); + return; + } + } + else +#endif /* LWIP_MULTICAST_PING */ + { + reply_src = ip6_current_dest_addr(); + } + + /* Set fields in reply. */ + ((struct icmp6_echo_hdr *)(r->payload))->type = ICMP6_TYPE_EREP; + ((struct icmp6_echo_hdr *)(r->payload))->chksum = 0; +#if CHECKSUM_GEN_ICMP6 + IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_GEN_ICMP6) { + ((struct icmp6_echo_hdr *)(r->payload))->chksum = ip6_chksum_pseudo(r, + IP6_NEXTH_ICMP6, r->tot_len, reply_src, ip6_current_src_addr()); + } +#endif /* CHECKSUM_GEN_ICMP6 */ + + /* Send reply. */ + ICMP6_STATS_INC(icmp6.xmit); + ip6_output_if(r, reply_src, ip6_current_src_addr(), + LWIP_ICMP6_HL, 0, IP6_NEXTH_ICMP6, inp); + pbuf_free(r); + + break; + default: + ICMP6_STATS_INC(icmp6.proterr); + ICMP6_STATS_INC(icmp6.drop); + break; + } + + pbuf_free(p); +} + + +/** + * Send an icmpv6 'destination unreachable' packet. + * + * This function must be used only in direct response to a packet that is being + * received right now. Otherwise, address zones would be lost. + * + * @param p the input packet for which the 'unreachable' should be sent, + * p->payload pointing to the IPv6 header + * @param c ICMPv6 code for the unreachable type + */ +void +icmp6_dest_unreach(struct pbuf *p, enum icmp6_dur_code c) +{ + icmp6_send_response(p, c, 0, ICMP6_TYPE_DUR); +} + +/** + * Send an icmpv6 'packet too big' packet. + * + * This function must be used only in direct response to a packet that is being + * received right now. Otherwise, address zones would be lost. + * + * @param p the input packet for which the 'packet too big' should be sent, + * p->payload pointing to the IPv6 header + * @param mtu the maximum mtu that we can accept + */ +void +icmp6_packet_too_big(struct pbuf *p, u32_t mtu) +{ + icmp6_send_response(p, 0, mtu, ICMP6_TYPE_PTB); +} + +/** + * Send an icmpv6 'time exceeded' packet. + * + * This function must be used only in direct response to a packet that is being + * received right now. Otherwise, address zones would be lost. + * + * @param p the input packet for which the 'time exceeded' should be sent, + * p->payload pointing to the IPv6 header + * @param c ICMPv6 code for the time exceeded type + */ +void +icmp6_time_exceeded(struct pbuf *p, enum icmp6_te_code c) +{ + icmp6_send_response(p, c, 0, ICMP6_TYPE_TE); +} + +/** + * Send an icmpv6 'time exceeded' packet, with explicit source and destination + * addresses. + * + * This function may be used to send a response sometime after receiving the + * packet for which this response is meant. The provided source and destination + * addresses are used primarily to retain their zone information. + * + * @param p the input packet for which the 'time exceeded' should be sent, + * p->payload pointing to the IPv6 header + * @param c ICMPv6 code for the time exceeded type + * @param src_addr source address of the original packet, with zone information + * @param dest_addr destination address of the original packet, with zone + * information + */ +void +icmp6_time_exceeded_with_addrs(struct pbuf *p, enum icmp6_te_code c, + const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr) +{ + icmp6_send_response_with_addrs(p, c, 0, ICMP6_TYPE_TE, src_addr, dest_addr); +} + +/** + * Send an icmpv6 'parameter problem' packet. + * + * This function must be used only in direct response to a packet that is being + * received right now. Otherwise, address zones would be lost and the calculated + * offset would be wrong (calculated against ip6_current_header()). + * + * @param p the input packet for which the 'param problem' should be sent, + * p->payload pointing to the IP header + * @param c ICMPv6 code for the param problem type + * @param pointer the pointer to the byte where the parameter is found + */ +void +icmp6_param_problem(struct pbuf *p, enum icmp6_pp_code c, const void *pointer) +{ + u32_t pointer_u32 = (u32_t)((const u8_t *)pointer - (const u8_t *)ip6_current_header()); + icmp6_send_response(p, c, pointer_u32, ICMP6_TYPE_PP); +} + +/** + * Send an ICMPv6 packet in response to an incoming packet. + * The packet is sent *to* ip_current_src_addr() on ip_current_netif(). + * + * @param p the input packet for which the response should be sent, + * p->payload pointing to the IPv6 header + * @param code Code of the ICMPv6 header + * @param data Additional 32-bit parameter in the ICMPv6 header + * @param type Type of the ICMPv6 header + */ +static void +icmp6_send_response(struct pbuf *p, u8_t code, u32_t data, u8_t type) +{ + const struct ip6_addr *reply_src, *reply_dest; + struct netif *netif = ip_current_netif(); + + LWIP_ASSERT("icmpv6 packet not a direct response", netif != NULL); + reply_dest = ip6_current_src_addr(); + + /* Select an address to use as source. */ + reply_src = ip_2_ip6(ip6_select_source_address(netif, reply_dest)); + if (reply_src == NULL) { + ICMP6_STATS_INC(icmp6.rterr); + return; + } + icmp6_send_response_with_addrs_and_netif(p, code, data, type, reply_src, reply_dest, netif); +} + +/** + * Send an ICMPv6 packet in response to an incoming packet. + * + * Call this function if the packet is NOT sent as a direct response to an + * incoming packet, but rather sometime later (e.g. for a fragment reassembly + * timeout). The caller must provide the zoned source and destination addresses + * from the original packet with the src_addr and dest_addr parameters. The + * reason for this approach is that while the addresses themselves are part of + * the original packet, their zone information is not, thus possibly resulting + * in a link-local response being sent over the wrong link. + * + * @param p the input packet for which the response should be sent, + * p->payload pointing to the IPv6 header + * @param code Code of the ICMPv6 header + * @param data Additional 32-bit parameter in the ICMPv6 header + * @param type Type of the ICMPv6 header + * @param src_addr original source address + * @param dest_addr original destination address + */ +static void +icmp6_send_response_with_addrs(struct pbuf *p, u8_t code, u32_t data, u8_t type, + const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr) +{ + const struct ip6_addr *reply_src, *reply_dest; + struct netif *netif; + + /* Get the destination address and netif for this ICMP message. */ + LWIP_ASSERT("must provide both source and destination", src_addr != NULL); + LWIP_ASSERT("must provide both source and destination", dest_addr != NULL); + + /* Special case, as ip6_current_xxx is either NULL, or points + to a different packet than the one that expired. */ + IP6_ADDR_ZONECHECK(src_addr); + IP6_ADDR_ZONECHECK(dest_addr); + /* Swap source and destination for the reply. */ + reply_dest = src_addr; + reply_src = dest_addr; + netif = ip6_route(reply_src, reply_dest); + if (netif == NULL) { + ICMP6_STATS_INC(icmp6.rterr); + return; + } + icmp6_send_response_with_addrs_and_netif(p, code, data, type, reply_src, + reply_dest, netif); +} + +/** + * Send an ICMPv6 packet (with srd/dst address and netif given). + * + * @param p the input packet for which the response should be sent, + * p->payload pointing to the IPv6 header + * @param code Code of the ICMPv6 header + * @param data Additional 32-bit parameter in the ICMPv6 header + * @param type Type of the ICMPv6 header + * @param reply_src source address of the packet to send + * @param reply_dest destination address of the packet to send + * @param netif netif to send the packet + */ +static void +icmp6_send_response_with_addrs_and_netif(struct pbuf *p, u8_t code, u32_t data, u8_t type, + const ip6_addr_t *reply_src, const ip6_addr_t *reply_dest, struct netif *netif) +{ + struct pbuf *q; + struct icmp6_hdr *icmp6hdr; + u16_t datalen = LWIP_MIN(p->tot_len, LWIP_ICMP6_DATASIZE); + + /* ICMPv6 header + datalen (as much of the offending packet as possible) */ + q = pbuf_alloc(PBUF_IP, sizeof(struct icmp6_hdr) + datalen, + PBUF_RAM); + if (q == NULL) { + LWIP_DEBUGF(ICMP_DEBUG, ("icmp_time_exceeded: failed to allocate pbuf for ICMPv6 packet.\n")); + ICMP6_STATS_INC(icmp6.memerr); + return; + } + LWIP_ASSERT("check that first pbuf can hold icmp6 header", + (q->len >= (sizeof(struct icmp6_hdr)))); + + icmp6hdr = (struct icmp6_hdr *)q->payload; + icmp6hdr->type = type; + icmp6hdr->code = code; + icmp6hdr->data = lwip_htonl(data); + + /* copy fields from original packet */ + pbuf_copy_partial_pbuf(q, p, datalen, sizeof(struct icmp6_hdr)); + + /* calculate checksum */ + icmp6hdr->chksum = 0; +#if CHECKSUM_GEN_ICMP6 + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP6) { + icmp6hdr->chksum = ip6_chksum_pseudo(q, IP6_NEXTH_ICMP6, q->tot_len, + reply_src, reply_dest); + } +#endif /* CHECKSUM_GEN_ICMP6 */ + + ICMP6_STATS_INC(icmp6.xmit); + ip6_output_if(q, reply_src, reply_dest, LWIP_ICMP6_HL, 0, IP6_NEXTH_ICMP6, netif); + pbuf_free(q); +} + +#endif /* LWIP_ICMP6 && LWIP_IPV6 */ diff --git a/middleware/lwip/src/core/ipv6/inet6.c b/middleware/lwip/src/core/ipv6/inet6.c new file mode 100644 index 0000000..d9a992c --- /dev/null +++ b/middleware/lwip/src/core/ipv6/inet6.c @@ -0,0 +1,53 @@ +/** + * @file + * + * INET v6 addresses. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV6 && LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/def.h" +#include "lwip/inet.h" + +/** This variable is initialized by the system to contain the wildcard IPv6 address. + */ +const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT; + +#endif /* LWIP_IPV6 */ diff --git a/middleware/lwip/src/core/ipv6/ip6.c b/middleware/lwip/src/core/ipv6/ip6.c new file mode 100644 index 0000000..3f435ca --- /dev/null +++ b/middleware/lwip/src/core/ipv6/ip6.c @@ -0,0 +1,1498 @@ +/** + * @file + * + * IPv6 layer. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/netif.h" +#include "lwip/ip.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/ip6_frag.h" +#include "lwip/icmp6.h" +#include "lwip/priv/raw_priv.h" +#include "lwip/udp.h" +#include "lwip/priv/tcp_priv.h" +#include "lwip/dhcp6.h" +#include "lwip/nd6.h" +#include "lwip/mld6.h" +#include "lwip/debug.h" +#include "lwip/stats.h" + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif + +/** + * Finds the appropriate network interface for a given IPv6 address. It tries to select + * a netif following a sequence of heuristics: + * 1) if there is only 1 netif, return it + * 2) if the destination is a zoned address, match its zone to a netif + * 3) if the either the source or destination address is a scoped address, + * match the source address's zone (if set) or address (if not) to a netif + * 4) tries to match the destination subnet to a configured address + * 5) tries to find a router-announced route + * 6) tries to match the (unscoped) source address to the netif + * 7) returns the default netif, if configured + * + * Note that each of the two given addresses may or may not be properly zoned. + * + * @param src the source IPv6 address, if known + * @param dest the destination IPv6 address for which to find the route + * @return the netif on which to send to reach dest + */ +struct netif * +ip6_route(const ip6_addr_t *src, const ip6_addr_t *dest) +{ +#if LWIP_SINGLE_NETIF + LWIP_UNUSED_ARG(src); + LWIP_UNUSED_ARG(dest); +#else /* LWIP_SINGLE_NETIF */ + struct netif *netif; + s8_t i; + + LWIP_ASSERT_CORE_LOCKED(); + + /* If single netif configuration, fast return. */ + if ((netif_list != NULL) && (netif_list->next == NULL)) { + if (!netif_is_up(netif_list) || !netif_is_link_up(netif_list) || + (ip6_addr_has_zone(dest) && !ip6_addr_test_zone(dest, netif_list))) { + return NULL; + } + return netif_list; + } + +#if LWIP_IPV6_SCOPES + /* Special processing for zoned destination addresses. This includes link- + * local unicast addresses and interface/link-local multicast addresses. Use + * the zone to find a matching netif. If the address is not zoned, then there + * is technically no "wrong" netif to choose, and we leave routing to other + * rules; in most cases this should be the scoped-source rule below. */ + if (ip6_addr_has_zone(dest)) { + IP6_ADDR_ZONECHECK(dest); + /* Find a netif based on the zone. For custom mappings, one zone may map + * to multiple netifs, so find one that can actually send a packet. */ + NETIF_FOREACH(netif) { + if (ip6_addr_test_zone(dest, netif) && + netif_is_up(netif) && netif_is_link_up(netif)) { + return netif; + } + } + /* No matching netif found. Do no try to route to a different netif, + * as that would be a zone violation, resulting in any packets sent to + * that netif being dropped on output. */ + return NULL; + } +#endif /* LWIP_IPV6_SCOPES */ + + /* Special processing for scoped source and destination addresses. If we get + * here, the destination address does not have a zone, so either way we need + * to look at the source address, which may or may not have a zone. If it + * does, the zone is restrictive: there is (typically) only one matching + * netif for it, and we should avoid routing to any other netif as that would + * result in guaranteed zone violations. For scoped source addresses that do + * not have a zone, use (only) a netif that has that source address locally + * assigned. This case also applies to the loopback source address, which has + * an implied link-local scope. If only the destination address is scoped + * (but, again, not zoned), we still want to use only the source address to + * determine its zone because that's most likely what the user/application + * wants, regardless of whether the source address is scoped. Finally, some + * of this story also applies if scoping is disabled altogether. */ +#if LWIP_IPV6_SCOPES + if (ip6_addr_has_scope(dest, IP6_UNKNOWN) || + ip6_addr_has_scope(src, IP6_UNICAST) || +#else /* LWIP_IPV6_SCOPES */ + if (ip6_addr_islinklocal(dest) || ip6_addr_ismulticast_iflocal(dest) || + ip6_addr_ismulticast_linklocal(dest) || ip6_addr_islinklocal(src) || +#endif /* LWIP_IPV6_SCOPES */ + ip6_addr_isloopback(src)) { +#if LWIP_IPV6_SCOPES + if (ip6_addr_has_zone(src)) { + /* Find a netif matching the source zone (relatively cheap). */ + NETIF_FOREACH(netif) { + if (netif_is_up(netif) && netif_is_link_up(netif) && + ip6_addr_test_zone(src, netif)) { + return netif; + } + } + } else +#endif /* LWIP_IPV6_SCOPES */ + { + /* Find a netif matching the source address (relatively expensive). */ + NETIF_FOREACH(netif) { + if (!netif_is_up(netif) || !netif_is_link_up(netif)) { + continue; + } + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && + ip6_addr_zoneless_eq(src, netif_ip6_addr(netif, i))) { + return netif; + } + } + } + } + /* Again, do not use any other netif in this case, as that could result in + * zone boundary violations. */ + return NULL; + } + + /* We come here only if neither source nor destination is scoped. */ + IP6_ADDR_ZONECHECK(src); + +#ifdef LWIP_HOOK_IP6_ROUTE + netif = LWIP_HOOK_IP6_ROUTE(src, dest); + if (netif != NULL) { + return netif; + } +#endif + + /* See if the destination subnet matches a configured address. In accordance + * with RFC 5942, dynamically configured addresses do not have an implied + * local subnet, and thus should be considered /128 assignments. However, as + * such, the destination address may still match a local address, and so we + * still need to check for exact matches here. By (lwIP) policy, statically + * configured addresses do always have an implied local /64 subnet. */ + NETIF_FOREACH(netif) { + if (!netif_is_up(netif) || !netif_is_link_up(netif)) { + continue; + } + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && + ip6_addr_net_eq(dest, netif_ip6_addr(netif, i)) && + (netif_ip6_addr_isstatic(netif, i) || + ip6_addr_nethost_eq(dest, netif_ip6_addr(netif, i)))) { + return netif; + } + } + } + + /* Get the netif for a suitable router-announced route. */ + netif = nd6_find_route(dest); + if (netif != NULL) { + return netif; + } + + /* Try with the netif that matches the source address. Given the earlier rule + * for scoped source addresses, this applies to unscoped addresses only. */ + if (!ip6_addr_isany(src)) { + NETIF_FOREACH(netif) { + if (!netif_is_up(netif) || !netif_is_link_up(netif)) { + continue; + } + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && + ip6_addr_eq(src, netif_ip6_addr(netif, i))) { + return netif; + } + } + } + } + +#if LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF + /* loopif is disabled, loopback traffic is passed through any netif */ + if (ip6_addr_isloopback(dest)) { + /* don't check for link on loopback traffic */ + if (netif_default != NULL && netif_is_up(netif_default)) { + return netif_default; + } + /* default netif is not up, just use any netif for loopback traffic */ + NETIF_FOREACH(netif) { + if (netif_is_up(netif)) { + return netif; + } + } + return NULL; + } +#endif /* LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF */ +#endif /* !LWIP_SINGLE_NETIF */ + + /* no matching netif found, use default netif, if up */ + if ((netif_default == NULL) || !netif_is_up(netif_default) || !netif_is_link_up(netif_default)) { + return NULL; + } + return netif_default; +} + +/** + * @ingroup ip6 + * Select the best IPv6 source address for a given destination IPv6 address. + * + * This implementation follows RFC 6724 Sec. 5 to the following extent: + * - Rules 1, 2, 3: fully implemented + * - Rules 4, 5, 5.5: not applicable + * - Rule 6: not implemented + * - Rule 7: not applicable + * - Rule 8: limited to "prefer /64 subnet match over non-match" + * + * For Rule 2, we deliberately deviate from RFC 6724 Sec. 3.1 by considering + * ULAs to be of smaller scope than global addresses, to avoid that a preferred + * ULA is picked over a deprecated global address when given a global address + * as destination, as that would likely result in broken two-way communication. + * + * As long as temporary addresses are not supported (as used in Rule 7), a + * proper implementation of Rule 8 would obviate the need to implement Rule 6. + * + * @param netif the netif on which to send a packet + * @param dest the destination we are trying to reach (possibly not properly + * zoned) + * @return the most suitable source address to use, or NULL if no suitable + * source address is found + */ +const ip_addr_t * +ip6_select_source_address(struct netif *netif, const ip6_addr_t *dest) +{ + const ip_addr_t *best_addr; + const ip6_addr_t *cand_addr; + s8_t dest_scope, cand_scope; + s8_t best_scope = IP6_MULTICAST_SCOPE_RESERVED; + u8_t i, cand_pref, cand_bits; + u8_t best_pref = 0; + u8_t best_bits = 0; + + /* Start by determining the scope of the given destination address. These + * tests are hopefully (roughly) in order of likeliness to match. */ + if (ip6_addr_isglobal(dest)) { + dest_scope = IP6_MULTICAST_SCOPE_GLOBAL; + } else if (ip6_addr_islinklocal(dest) || ip6_addr_isloopback(dest)) { + dest_scope = IP6_MULTICAST_SCOPE_LINK_LOCAL; + } else if (ip6_addr_isuniquelocal(dest)) { + dest_scope = IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL; + } else if (ip6_addr_ismulticast(dest)) { + dest_scope = ip6_addr_multicast_scope(dest); + } else if (ip6_addr_issitelocal(dest)) { + dest_scope = IP6_MULTICAST_SCOPE_SITE_LOCAL; + } else { + /* no match, consider scope global */ + dest_scope = IP6_MULTICAST_SCOPE_GLOBAL; + } + + best_addr = NULL; + + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + /* Consider only valid (= preferred and deprecated) addresses. */ + if (!ip6_addr_isvalid(netif_ip6_addr_state(netif, i))) { + continue; + } + /* Determine the scope of this candidate address. Same ordering idea. */ + cand_addr = netif_ip6_addr(netif, i); + if (ip6_addr_isglobal(cand_addr)) { + cand_scope = IP6_MULTICAST_SCOPE_GLOBAL; + } else if (ip6_addr_islinklocal(cand_addr)) { + cand_scope = IP6_MULTICAST_SCOPE_LINK_LOCAL; + } else if (ip6_addr_isuniquelocal(cand_addr)) { + cand_scope = IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL; + } else if (ip6_addr_issitelocal(cand_addr)) { + cand_scope = IP6_MULTICAST_SCOPE_SITE_LOCAL; + } else { + /* no match, treat as low-priority global scope */ + cand_scope = IP6_MULTICAST_SCOPE_RESERVEDF; + } + cand_pref = ip6_addr_ispreferred(netif_ip6_addr_state(netif, i)); + /* @todo compute the actual common bits, for longest matching prefix. */ + /* We cannot count on the destination address having a proper zone + * assignment, so do not compare zones in this case. */ + cand_bits = ip6_addr_net_zoneless_eq(cand_addr, dest); /* just 1 or 0 for now */ + if (cand_bits && ip6_addr_nethost_eq(cand_addr, dest)) { + return netif_ip_addr6(netif, i); /* Rule 1 */ + } + if ((best_addr == NULL) || /* no alternative yet */ + ((cand_scope < best_scope) && (cand_scope >= dest_scope)) || + ((cand_scope > best_scope) && (best_scope < dest_scope)) || /* Rule 2 */ + ((cand_scope == best_scope) && ((cand_pref > best_pref) || /* Rule 3 */ + ((cand_pref == best_pref) && (cand_bits > best_bits))))) { /* Rule 8 */ + /* We found a new "winning" candidate. */ + best_addr = netif_ip_addr6(netif, i); + best_scope = cand_scope; + best_pref = cand_pref; + best_bits = cand_bits; + } + } + + return best_addr; /* may be NULL */ +} + +#if LWIP_IPV6_FORWARD +/** + * Forwards an IPv6 packet. It finds an appropriate route for the + * packet, decrements the HL value of the packet, and outputs + * the packet on the appropriate interface. + * + * @param p the packet to forward (p->payload points to IP header) + * @param iphdr the IPv6 header of the input packet + * @param inp the netif on which this packet was received + */ +static void +ip6_forward(struct pbuf *p, struct ip6_hdr *iphdr, struct netif *inp) +{ + struct netif *netif; + + /* do not forward link-local or loopback addresses */ + if (ip6_addr_islinklocal(ip6_current_dest_addr()) || + ip6_addr_isloopback(ip6_current_dest_addr())) { + LWIP_DEBUGF(IP6_DEBUG, ("ip6_forward: not forwarding link-local address.\n")); + IP6_STATS_INC(ip6.rterr); + IP6_STATS_INC(ip6.drop); + return; + } + + /* Find network interface where to forward this IP packet to. */ + netif = ip6_route(IP6_ADDR_ANY6, ip6_current_dest_addr()); + if (netif == NULL) { + LWIP_DEBUGF(IP6_DEBUG, ("ip6_forward: no route for %"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F"\n", + IP6_ADDR_BLOCK1(ip6_current_dest_addr()), + IP6_ADDR_BLOCK2(ip6_current_dest_addr()), + IP6_ADDR_BLOCK3(ip6_current_dest_addr()), + IP6_ADDR_BLOCK4(ip6_current_dest_addr()), + IP6_ADDR_BLOCK5(ip6_current_dest_addr()), + IP6_ADDR_BLOCK6(ip6_current_dest_addr()), + IP6_ADDR_BLOCK7(ip6_current_dest_addr()), + IP6_ADDR_BLOCK8(ip6_current_dest_addr()))); +#if LWIP_ICMP6 + /* Don't send ICMP messages in response to ICMP messages */ + if (IP6H_NEXTH(iphdr) != IP6_NEXTH_ICMP6) { + icmp6_dest_unreach(p, ICMP6_DUR_NO_ROUTE); + } +#endif /* LWIP_ICMP6 */ + IP6_STATS_INC(ip6.rterr); + IP6_STATS_INC(ip6.drop); + return; + } +#if LWIP_IPV6_SCOPES + /* Do not forward packets with a zoned (e.g., link-local) source address + * outside of their zone. We determined the zone a bit earlier, so we know + * that the address is properly zoned here, so we can safely use has_zone. + * Also skip packets with a loopback source address (link-local implied). */ + if ((ip6_addr_has_zone(ip6_current_src_addr()) && + !ip6_addr_test_zone(ip6_current_src_addr(), netif)) || + ip6_addr_isloopback(ip6_current_src_addr())) { + LWIP_DEBUGF(IP6_DEBUG, ("ip6_forward: not forwarding packet beyond its source address zone.\n")); + IP6_STATS_INC(ip6.rterr); + IP6_STATS_INC(ip6.drop); + return; + } +#endif /* LWIP_IPV6_SCOPES */ + /* Do not forward packets onto the same network interface on which + * they arrived. */ + if (netif == inp) { + LWIP_DEBUGF(IP6_DEBUG, ("ip6_forward: not bouncing packets back on incoming interface.\n")); + IP6_STATS_INC(ip6.rterr); + IP6_STATS_INC(ip6.drop); + return; + } + + /* decrement HL */ + IP6H_HOPLIM_SET(iphdr, IP6H_HOPLIM(iphdr) - 1); + /* send ICMP6 if HL == 0 */ + if (IP6H_HOPLIM(iphdr) == 0) { +#if LWIP_ICMP6 + /* Don't send ICMP messages in response to ICMP messages */ + if (IP6H_NEXTH(iphdr) != IP6_NEXTH_ICMP6) { + icmp6_time_exceeded(p, ICMP6_TE_HL); + } +#endif /* LWIP_ICMP6 */ + IP6_STATS_INC(ip6.drop); + return; + } + + if (netif->mtu && (p->tot_len > netif->mtu)) { +#if LWIP_ICMP6 + /* Don't send ICMP messages in response to ICMP messages */ + if (IP6H_NEXTH(iphdr) != IP6_NEXTH_ICMP6) { + icmp6_packet_too_big(p, netif->mtu); + } +#endif /* LWIP_ICMP6 */ + IP6_STATS_INC(ip6.drop); + return; + } + + LWIP_DEBUGF(IP6_DEBUG, ("ip6_forward: forwarding packet to %"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F"\n", + IP6_ADDR_BLOCK1(ip6_current_dest_addr()), + IP6_ADDR_BLOCK2(ip6_current_dest_addr()), + IP6_ADDR_BLOCK3(ip6_current_dest_addr()), + IP6_ADDR_BLOCK4(ip6_current_dest_addr()), + IP6_ADDR_BLOCK5(ip6_current_dest_addr()), + IP6_ADDR_BLOCK6(ip6_current_dest_addr()), + IP6_ADDR_BLOCK7(ip6_current_dest_addr()), + IP6_ADDR_BLOCK8(ip6_current_dest_addr()))); + + /* transmit pbuf on chosen interface */ + netif->output_ip6(netif, p, ip6_current_dest_addr()); + IP6_STATS_INC(ip6.fw); + IP6_STATS_INC(ip6.xmit); + return; +} +#endif /* LWIP_IPV6_FORWARD */ + +/** Return true if the current input packet should be accepted on this netif */ +static int +ip6_input_accept(struct netif *netif) +{ + /* interface is up? */ + if (netif_is_up(netif)) { + u8_t i; + /* unicast to this interface address? address configured? */ + /* If custom scopes are used, the destination zone will be tested as + * part of the local-address comparison, but we need to test the source + * scope as well (e.g., is this interface on the same link?). */ + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && + ip6_addr_eq(ip6_current_dest_addr(), netif_ip6_addr(netif, i)) +#if IPV6_CUSTOM_SCOPES + && (!ip6_addr_has_zone(ip6_current_src_addr()) || + ip6_addr_test_zone(ip6_current_src_addr(), netif)) +#endif /* IPV6_CUSTOM_SCOPES */ + ) { + /* accept on this netif */ + return 1; + } + } + } + return 0; +} + +/** + * This function is called by the network interface device driver when + * an IPv6 packet is received. The function does the basic checks of the + * IP header such as packet size being at least larger than the header + * size etc. If the packet was not destined for us, the packet is + * forwarded (using ip6_forward). + * + * Finally, the packet is sent to the upper layer protocol input function. + * + * @param p the received IPv6 packet (p->payload points to IPv6 header) + * @param inp the netif on which this packet was received + * @return ERR_OK if the packet was processed (could return ERR_* if it wasn't + * processed, but currently always returns ERR_OK) + */ +err_t +ip6_input(struct pbuf *p, struct netif *inp) +{ + struct ip6_hdr *ip6hdr; + struct netif *netif; + const u8_t *nexth; + u16_t hlen, hlen_tot; /* the current header length */ +#if 0 /*IP_ACCEPT_LINK_LAYER_ADDRESSING*/ + @todo + int check_ip_src=1; +#endif /* IP_ACCEPT_LINK_LAYER_ADDRESSING */ +#if LWIP_RAW + raw_input_state_t raw_status; +#endif /* LWIP_RAW */ + + LWIP_ASSERT_CORE_LOCKED(); + + IP6_STATS_INC(ip6.recv); + + /* identify the IP header */ + ip6hdr = (struct ip6_hdr *)p->payload; + if (IP6H_V(ip6hdr) != 6) { + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_WARNING, ("IPv6 packet dropped due to bad version number %"U32_F"\n", + IP6H_V(ip6hdr))); + pbuf_free(p); + IP6_STATS_INC(ip6.err); + IP6_STATS_INC(ip6.drop); + return ERR_OK; + } + +#ifdef LWIP_HOOK_IP6_INPUT + if (LWIP_HOOK_IP6_INPUT(p, inp)) { + /* the packet has been eaten */ + return ERR_OK; + } +#endif + + /* header length exceeds first pbuf length, or ip length exceeds total pbuf length? */ + if ((IP6_HLEN > p->len) || (IP6H_PLEN(ip6hdr) > (p->tot_len - IP6_HLEN))) { + if (IP6_HLEN > p->len) { + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("IPv6 header (len %"U16_F") does not fit in first pbuf (len %"U16_F"), IP packet dropped.\n", + (u16_t)IP6_HLEN, p->len)); + } + if ((IP6H_PLEN(ip6hdr) + IP6_HLEN) > p->tot_len) { + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("IPv6 (plen %"U16_F") is longer than pbuf (len %"U16_F"), IP packet dropped.\n", + (u16_t)(IP6H_PLEN(ip6hdr) + IP6_HLEN), p->tot_len)); + } + /* free (drop) packet pbufs */ + pbuf_free(p); + IP6_STATS_INC(ip6.lenerr); + IP6_STATS_INC(ip6.drop); + return ERR_OK; + } + + /* Trim pbuf. This should have been done at the netif layer, + * but we'll do it anyway just to be sure that its done. */ + pbuf_realloc(p, (u16_t)(IP6_HLEN + IP6H_PLEN(ip6hdr))); + + /* copy IP addresses to aligned ip6_addr_t */ + ip_addr_copy_from_ip6_packed(ip_data.current_iphdr_dest, ip6hdr->dest); + ip_addr_copy_from_ip6_packed(ip_data.current_iphdr_src, ip6hdr->src); + + /* Don't accept virtual IPv4 mapped IPv6 addresses. + * Don't accept multicast source addresses. */ + if (ip6_addr_isipv4mappedipv6(ip_2_ip6(&ip_data.current_iphdr_dest)) || + ip6_addr_isipv4mappedipv6(ip_2_ip6(&ip_data.current_iphdr_src)) || + ip6_addr_ismulticast(ip_2_ip6(&ip_data.current_iphdr_src))) { + /* free (drop) packet pbufs */ + pbuf_free(p); + IP6_STATS_INC(ip6.err); + IP6_STATS_INC(ip6.drop); + return ERR_OK; + } + + /* Set the appropriate zone identifier on the addresses. */ + ip6_addr_assign_zone(ip_2_ip6(&ip_data.current_iphdr_dest), IP6_UNKNOWN, inp); + ip6_addr_assign_zone(ip_2_ip6(&ip_data.current_iphdr_src), IP6_UNICAST, inp); + + /* current header pointer. */ + ip_data.current_ip6_header = ip6hdr; + + /* In netif, used in case we need to send ICMPv6 packets back. */ + ip_data.current_netif = inp; + ip_data.current_input_netif = inp; + + /* match packet against an interface, i.e. is this packet for us? */ + if (ip6_addr_ismulticast(ip6_current_dest_addr())) { + /* Always joined to multicast if-local and link-local all-nodes group. */ + if (ip6_addr_isallnodes_iflocal(ip6_current_dest_addr()) || + ip6_addr_isallnodes_linklocal(ip6_current_dest_addr())) { + netif = inp; + } +#if LWIP_IPV6_MLD + else if (mld6_lookfor_group(inp, ip6_current_dest_addr())) { + netif = inp; + } +#else /* LWIP_IPV6_MLD */ + else if (ip6_addr_issolicitednode(ip6_current_dest_addr())) { + u8_t i; + /* Filter solicited node packets when MLD is not enabled + * (for Neighbor discovery). */ + netif = NULL; + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(inp, i)) && + ip6_addr_solicitednode_eq(ip6_current_dest_addr(), netif_ip6_addr(inp, i))) { + netif = inp; + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: solicited node packet accepted on interface %c%c\n", + netif->name[0], netif->name[1])); + break; + } + } + } +#endif /* LWIP_IPV6_MLD */ + else { + netif = NULL; + } + } else { + /* start trying with inp. if that's not acceptable, start walking the + list of configured netifs. */ + if (ip6_input_accept(inp)) { + netif = inp; + } else { + netif = NULL; +#if !IPV6_CUSTOM_SCOPES + /* Shortcut: stop looking for other interfaces if either the source or + * the destination has a scope constrained to this interface. Custom + * scopes may break the 1:1 link/interface mapping, however. */ + if (ip6_addr_islinklocal(ip6_current_dest_addr()) || + ip6_addr_islinklocal(ip6_current_src_addr())) { + goto netif_found; + } +#endif /* !IPV6_CUSTOM_SCOPES */ +#if !LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF + /* The loopback address is to be considered link-local. Packets to it + * should be dropped on other interfaces, as per RFC 4291 Sec. 2.5.3. + * Its implied scope means packets *from* the loopback address should + * not be accepted on other interfaces, either. These requirements + * cannot be implemented in the case that loopback traffic is sent + * across a non-loopback interface, however. */ + if (ip6_addr_isloopback(ip6_current_dest_addr()) || + ip6_addr_isloopback(ip6_current_src_addr())) { + goto netif_found; + } +#endif /* !LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF */ +#if !LWIP_SINGLE_NETIF + NETIF_FOREACH(netif) { + if (netif == inp) { + /* we checked that before already */ + continue; + } + if (ip6_input_accept(netif)) { + break; + } + } +#endif /* !LWIP_SINGLE_NETIF */ + } +netif_found: + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet accepted on interface %c%c\n", + netif ? netif->name[0] : 'X', netif? netif->name[1] : 'X')); + } + + /* "::" packet source address? (used in duplicate address detection) */ + if (ip6_addr_isany(ip6_current_src_addr()) && + (!ip6_addr_issolicitednode(ip6_current_dest_addr()))) { + /* packet source is not valid */ + /* free (drop) packet pbufs */ + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with src ANY_ADDRESS dropped\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + } + + /* packet not for us? */ + if (netif == NULL) { + /* packet not for us, route or discard */ + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_TRACE, ("ip6_input: packet not for us.\n")); +#if LWIP_IPV6_FORWARD + /* non-multicast packet? */ + if (!ip6_addr_ismulticast(ip6_current_dest_addr())) { + /* try to forward IP packet on (other) interfaces */ + ip6_forward(p, ip6hdr, inp); + } +#endif /* LWIP_IPV6_FORWARD */ + pbuf_free(p); + goto ip6_input_cleanup; + } + + /* current netif pointer. */ + ip_data.current_netif = netif; + + /* Save next header type. */ + nexth = &IP6H_NEXTH(ip6hdr); + + /* Init header length. */ + hlen = hlen_tot = IP6_HLEN; + + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: \n")); + ip6_debug_print(p); + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: p->len %"U16_F" p->tot_len %"U16_F"\n", p->len, p->tot_len)); + + /* Move to payload. */ + pbuf_remove_header(p, IP6_HLEN); + + /* Process known option extension headers, if present. */ + while (*nexth != IP6_NEXTH_NONE) + { + switch (*nexth) { + case IP6_NEXTH_HOPBYHOP: + { + s32_t opt_offset; + struct ip6_hbh_hdr *hbh_hdr; + struct ip6_opt_hdr *opt_hdr; + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Hop-by-Hop options header\n")); + + /* Get and check the header length, while staying in packet bounds. */ + hbh_hdr = (struct ip6_hbh_hdr *)p->payload; + + /* Get next header type. */ + nexth = &IP6_HBH_NEXTH(hbh_hdr); + + /* Get the header length. */ + hlen = (u16_t)(8 * (1 + hbh_hdr->_hlen)); + + if ((p->len < 8) || (hlen > p->len)) { + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n", + hlen, p->len)); + /* free (drop) packet pbufs */ + pbuf_free(p); + IP6_STATS_INC(ip6.lenerr); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + } + + hlen_tot = (u16_t)(hlen_tot + hlen); + + /* The extended option header starts right after Hop-by-Hop header. */ + opt_offset = IP6_HBH_HLEN; + while (opt_offset < hlen) + { + s32_t opt_dlen = 0; + + opt_hdr = (struct ip6_opt_hdr *)((u8_t *)hbh_hdr + opt_offset); + + switch (IP6_OPT_TYPE(opt_hdr)) { + /* @todo: process IPV6 Hop-by-Hop option data */ + case IP6_PAD1_OPTION: + /* PAD1 option doesn't have length and value field */ + opt_dlen = -1; + break; + case IP6_PADN_OPTION: + opt_dlen = IP6_OPT_DLEN(opt_hdr); + break; + case IP6_ROUTER_ALERT_OPTION: + opt_dlen = IP6_OPT_DLEN(opt_hdr); + break; + case IP6_JUMBO_OPTION: + opt_dlen = IP6_OPT_DLEN(opt_hdr); + break; + default: + /* Check 2 MSB of Hop-by-Hop header type. */ + switch (IP6_OPT_TYPE_ACTION(opt_hdr)) { + case 1: + /* Discard the packet. */ + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid Hop-by-Hop option type dropped.\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + case 2: + /* Send ICMP Parameter Problem */ + icmp6_param_problem(p, ICMP6_PP_OPTION, opt_hdr); + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid Hop-by-Hop option type dropped.\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + case 3: + /* Send ICMP Parameter Problem if destination address is not a multicast address */ + if (!ip6_addr_ismulticast(ip6_current_dest_addr())) { + icmp6_param_problem(p, ICMP6_PP_OPTION, opt_hdr); + } + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid Hop-by-Hop option type dropped.\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + default: + /* Skip over this option. */ + opt_dlen = IP6_OPT_DLEN(opt_hdr); + break; + } + break; + } + + /* Adjust the offset to move to the next extended option header */ + opt_offset = opt_offset + IP6_OPT_HLEN + opt_dlen; + } + pbuf_remove_header(p, hlen); + break; + } + case IP6_NEXTH_DESTOPTS: + { + s32_t opt_offset; + struct ip6_dest_hdr *dest_hdr; + struct ip6_opt_hdr *opt_hdr; + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Destination options header\n")); + + dest_hdr = (struct ip6_dest_hdr *)p->payload; + + /* Get next header type. */ + nexth = &IP6_DEST_NEXTH(dest_hdr); + + /* Get the header length. */ + hlen = 8 * (1 + dest_hdr->_hlen); + if ((p->len < 8) || (hlen > p->len)) { + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n", + hlen, p->len)); + /* free (drop) packet pbufs */ + pbuf_free(p); + IP6_STATS_INC(ip6.lenerr); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + } + + hlen_tot = (u16_t)(hlen_tot + hlen); + + /* The extended option header starts right after Destination header. */ + opt_offset = IP6_DEST_HLEN; + while (opt_offset < hlen) + { + s32_t opt_dlen = 0; + + opt_hdr = (struct ip6_opt_hdr *)((u8_t *)dest_hdr + opt_offset); + + switch (IP6_OPT_TYPE(opt_hdr)) + { + /* @todo: process IPV6 Destination option data */ + case IP6_PAD1_OPTION: + /* PAD1 option deosn't have length and value field */ + opt_dlen = -1; + break; + case IP6_PADN_OPTION: + opt_dlen = IP6_OPT_DLEN(opt_hdr); + break; + case IP6_ROUTER_ALERT_OPTION: + opt_dlen = IP6_OPT_DLEN(opt_hdr); + break; + case IP6_JUMBO_OPTION: + opt_dlen = IP6_OPT_DLEN(opt_hdr); + break; + case IP6_HOME_ADDRESS_OPTION: + opt_dlen = IP6_OPT_DLEN(opt_hdr); + break; + default: + /* Check 2 MSB of Destination header type. */ + switch (IP6_OPT_TYPE_ACTION(opt_hdr)) + { + case 1: + /* Discard the packet. */ + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid destination option type dropped.\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + case 2: + /* Send ICMP Parameter Problem */ + icmp6_param_problem(p, ICMP6_PP_OPTION, opt_hdr); + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid destination option type dropped.\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + case 3: + /* Send ICMP Parameter Problem if destination address is not a multicast address */ + if (!ip6_addr_ismulticast(ip6_current_dest_addr())) { + icmp6_param_problem(p, ICMP6_PP_OPTION, opt_hdr); + } + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid destination option type dropped.\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + default: + /* Skip over this option. */ + opt_dlen = IP6_OPT_DLEN(opt_hdr); + break; + } + break; + } + + /* Adjust the offset to move to the next extended option header */ + opt_offset = opt_offset + IP6_OPT_HLEN + opt_dlen; + } + + pbuf_remove_header(p, hlen); + break; + } + case IP6_NEXTH_ROUTING: + { + struct ip6_rout_hdr *rout_hdr; + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Routing header\n")); + + rout_hdr = (struct ip6_rout_hdr *)p->payload; + + /* Get next header type. */ + nexth = &IP6_ROUT_NEXTH(rout_hdr); + + /* Get the header length. */ + hlen = 8 * (1 + rout_hdr->_hlen); + + if ((p->len < 8) || (hlen > p->len)) { + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n", + hlen, p->len)); + /* free (drop) packet pbufs */ + pbuf_free(p); + IP6_STATS_INC(ip6.lenerr); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + } + + /* Skip over this header. */ + hlen_tot = (u16_t)(hlen_tot + hlen); + + /* if segment left value is 0 in routing header, ignore the option */ + if (IP6_ROUT_SEG_LEFT(rout_hdr)) { + /* The length field of routing option header must be even */ + if (rout_hdr->_hlen & 0x1) { + /* Discard and send parameter field error */ + icmp6_param_problem(p, ICMP6_PP_FIELD, &rout_hdr->_hlen); + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid routing type dropped\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + } + + switch (IP6_ROUT_TYPE(rout_hdr)) + { + /* TODO: process routing by the type */ + case IP6_ROUT_TYPE2: + break; + case IP6_ROUT_RPL: + break; + default: + /* Discard unrecognized routing type and send parameter field error */ + icmp6_param_problem(p, ICMP6_PP_FIELD, &IP6_ROUT_TYPE(rout_hdr)); + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid routing type dropped\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + } + } + + pbuf_remove_header(p, hlen); + break; + } + case IP6_NEXTH_FRAGMENT: + { + struct ip6_frag_hdr *frag_hdr; + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Fragment header\n")); + + frag_hdr = (struct ip6_frag_hdr *)p->payload; + + /* Get next header type. */ + nexth = &IP6_FRAG_NEXTH(frag_hdr); + + /* Fragment Header length. */ + hlen = 8; + + /* Make sure this header fits in current pbuf. */ + if (hlen > p->len) { + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n", + hlen, p->len)); + /* free (drop) packet pbufs */ + pbuf_free(p); + IP6_FRAG_STATS_INC(ip6_frag.lenerr); + IP6_FRAG_STATS_INC(ip6_frag.drop); + goto ip6_input_cleanup; + } + + hlen_tot = (u16_t)(hlen_tot + hlen); + + /* check payload length is multiple of 8 octets when mbit is set */ + if (IP6_FRAG_MBIT(frag_hdr) && (IP6H_PLEN(ip6hdr) & 0x7)) { + /* ipv6 payload length is not multiple of 8 octets */ + #ifdef __IAR_SYSTEMS_ICC__ + #pragma diag_suppress=Pa039 + #endif /* __IAR_SYSTEMS_ICC__ */ + icmp6_param_problem(p, ICMP6_PP_FIELD, LWIP_PACKED_CAST(const void *, &ip6hdr->_plen)); + #ifdef __IAR_SYSTEMS_ICC__ + #pragma diag_default=Pa039 + #endif /* __IAR_SYSTEMS_ICC__ */ + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid payload length dropped\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + } + + /* Offset == 0 and more_fragments == 0? */ + if ((frag_hdr->_fragment_offset & + PP_HTONS(IP6_FRAG_OFFSET_MASK | IP6_FRAG_MORE_FLAG)) == 0) { + /* This is a 1-fragment packet. Skip this header and continue. */ + pbuf_remove_header(p, hlen); + } else { +#if LWIP_IPV6_REASS + /* reassemble the packet */ + ip_data.current_ip_header_tot_len = hlen_tot; + p = ip6_reass(p); + /* packet not fully reassembled yet? */ + if (p == NULL) { + goto ip6_input_cleanup; + } + + /* Returned p point to IPv6 header. + * Update all our variables and pointers and continue. */ + ip6hdr = (struct ip6_hdr *)p->payload; + nexth = &IP6H_NEXTH(ip6hdr); + hlen = hlen_tot = IP6_HLEN; + pbuf_remove_header(p, IP6_HLEN); + +#else /* LWIP_IPV6_REASS */ + /* free (drop) packet pbufs */ + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Fragment header dropped (with LWIP_IPV6_REASS==0)\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.opterr); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; +#endif /* LWIP_IPV6_REASS */ + } + break; + } + default: + goto options_done; + } + + if (*nexth == IP6_NEXTH_HOPBYHOP) { + /* Hop-by-Hop header comes only as a first option */ + icmp6_param_problem(p, ICMP6_PP_HEADER, nexth); + LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Hop-by-Hop options header dropped (only valid as a first option)\n")); + pbuf_free(p); + IP6_STATS_INC(ip6.drop); + goto ip6_input_cleanup; + } + } + +options_done: + + /* send to upper layers */ + ip_data.current_ip_header_tot_len = hlen_tot; + +#if LWIP_RAW + /* p points to IPv6 header again for raw_input. */ + pbuf_add_header_force(p, hlen_tot); + /* raw input did not eat the packet? */ + raw_status = raw_input(p, inp); + if (raw_status != RAW_INPUT_EATEN) + { + /* Point to payload. */ + pbuf_remove_header(p, hlen_tot); +#else /* LWIP_RAW */ + { +#endif /* LWIP_RAW */ + switch (*nexth) { + case IP6_NEXTH_NONE: + pbuf_free(p); + break; +#if LWIP_UDP + case IP6_NEXTH_UDP: +#if LWIP_UDPLITE + case IP6_NEXTH_UDPLITE: +#endif /* LWIP_UDPLITE */ + udp_input(p, inp); + break; +#endif /* LWIP_UDP */ +#if LWIP_TCP + case IP6_NEXTH_TCP: + tcp_input(p, inp); + break; +#endif /* LWIP_TCP */ +#if LWIP_ICMP6 + case IP6_NEXTH_ICMP6: + icmp6_input(p, inp); + break; +#endif /* LWIP_ICMP */ + default: +#if LWIP_RAW + if (raw_status == RAW_INPUT_DELIVERED) { + /* @todo: ipv6 mib in-delivers? */ + } else +#endif /* LWIP_RAW */ + { +#if LWIP_ICMP6 + /* p points to IPv6 header again for raw_input. */ + pbuf_add_header_force(p, hlen_tot); + /* send ICMP parameter problem unless it was a multicast or ICMPv6 */ + if ((!ip6_addr_ismulticast(ip6_current_dest_addr())) && + (IP6H_NEXTH(ip6hdr) != IP6_NEXTH_ICMP6)) { + icmp6_param_problem(p, ICMP6_PP_HEADER, nexth); + } +#endif /* LWIP_ICMP */ + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip6_input: Unsupported transport protocol %"U16_F"\n", (u16_t)IP6H_NEXTH(ip6hdr))); + IP6_STATS_INC(ip6.proterr); + IP6_STATS_INC(ip6.drop); + } + pbuf_free(p); + break; + } + } + +ip6_input_cleanup: + ip_data.current_netif = NULL; + ip_data.current_input_netif = NULL; + ip_data.current_ip6_header = NULL; + ip_data.current_ip_header_tot_len = 0; + ip6_addr_set_zero(ip6_current_src_addr()); + ip6_addr_set_zero(ip6_current_dest_addr()); + + return ERR_OK; +} + + +/** + * Sends an IPv6 packet on a network interface. This function constructs + * the IPv6 header. If the source IPv6 address is NULL, the IPv6 "ANY" address is + * used as source (usually during network startup). If the source IPv6 address it + * IP6_ADDR_ANY, the most appropriate IPv6 address of the outgoing network + * interface is filled in as source address. If the destination IPv6 address is + * LWIP_IP_HDRINCL, p is assumed to already include an IPv6 header and + * p->payload points to it instead of the data. + * + * @param p the packet to send (p->payload points to the data, e.g. next + protocol header; if dest == LWIP_IP_HDRINCL, p already includes an + IPv6 header and p->payload points to that IPv6 header) + * @param src the source IPv6 address to send from (if src == IP6_ADDR_ANY, an + * IP address of the netif is selected and used as source address. + * if src == NULL, IP6_ADDR_ANY is used as source) (src is possibly not + * properly zoned) + * @param dest the destination IPv6 address to send the packet to (possibly not + * properly zoned) + * @param hl the Hop Limit value to be set in the IPv6 header + * @param tc the Traffic Class value to be set in the IPv6 header + * @param nexth the Next Header to be set in the IPv6 header + * @param netif the netif on which to send this packet + * @return ERR_OK if the packet was sent OK + * ERR_BUF if p doesn't have enough space for IPv6/LINK headers + * returns errors returned by netif->output_ip6 + */ +err_t +ip6_output_if(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, + u8_t hl, u8_t tc, + u8_t nexth, struct netif *netif) +{ + const ip6_addr_t *src_used = src; + if (dest != LWIP_IP_HDRINCL) { + if (src != NULL && ip6_addr_isany(src)) { + src_used = ip_2_ip6(ip6_select_source_address(netif, dest)); + if ((src_used == NULL) || ip6_addr_isany(src_used)) { + /* No appropriate source address was found for this packet. */ + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip6_output: No suitable source address for packet.\n")); + IP6_STATS_INC(ip6.rterr); + return ERR_RTE; + } + } + } + return ip6_output_if_src(p, src_used, dest, hl, tc, nexth, netif); +} + +/** + * Same as ip6_output_if() but 'src' address is not replaced by netif address + * when it is 'any'. + */ +err_t +ip6_output_if_src(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, + u8_t hl, u8_t tc, + u8_t nexth, struct netif *netif) +{ + struct ip6_hdr *ip6hdr; + ip6_addr_t dest_addr; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); + + /* Should the IPv6 header be generated or is it already included in p? */ + if (dest != LWIP_IP_HDRINCL) { +#if LWIP_IPV6_SCOPES + /* If the destination address is scoped but lacks a zone, add a zone now, + * based on the outgoing interface. The lower layers (e.g., nd6) absolutely + * require addresses to be properly zoned for correctness. In some cases, + * earlier attempts will have been made to add a zone to the destination, + * but this function is the only one that is called in all (other) cases, + * so we must do this here. */ + if (ip6_addr_lacks_zone(dest, IP6_UNKNOWN)) { + ip6_addr_copy(dest_addr, *dest); + ip6_addr_assign_zone(&dest_addr, IP6_UNKNOWN, netif); + dest = &dest_addr; + } +#endif /* LWIP_IPV6_SCOPES */ + + /* generate IPv6 header */ + if (pbuf_add_header(p, IP6_HLEN)) { + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip6_output: not enough room for IPv6 header in pbuf\n")); + IP6_STATS_INC(ip6.err); + return ERR_BUF; + } + + ip6hdr = (struct ip6_hdr *)p->payload; + LWIP_ASSERT("check that first pbuf can hold struct ip6_hdr", + (p->len >= sizeof(struct ip6_hdr))); + + IP6H_HOPLIM_SET(ip6hdr, hl); + IP6H_NEXTH_SET(ip6hdr, nexth); + + /* dest cannot be NULL here */ + ip6_addr_copy_to_packed(ip6hdr->dest, *dest); + + IP6H_VTCFL_SET(ip6hdr, 6, tc, 0); + IP6H_PLEN_SET(ip6hdr, (u16_t)(p->tot_len - IP6_HLEN)); + + if (src == NULL) { + src = IP6_ADDR_ANY6; + } + /* src cannot be NULL here */ + ip6_addr_copy_to_packed(ip6hdr->src, *src); + + } else { + /* IP header already included in p */ + ip6hdr = (struct ip6_hdr *)p->payload; + ip6_addr_copy_from_packed(dest_addr, ip6hdr->dest); + ip6_addr_assign_zone(&dest_addr, IP6_UNKNOWN, netif); + dest = &dest_addr; + } + + IP6_STATS_INC(ip6.xmit); + + LWIP_DEBUGF(IP6_DEBUG, ("ip6_output_if: %c%c%"U16_F"\n", netif->name[0], netif->name[1], (u16_t)netif->num)); + ip6_debug_print(p); + +#if ENABLE_LOOPBACK + { + int i; +#if !LWIP_HAVE_LOOPIF + if (ip6_addr_isloopback(dest)) { + return netif_loop_output(netif, p); + } +#endif /* !LWIP_HAVE_LOOPIF */ + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && + ip6_addr_eq(dest, netif_ip6_addr(netif, i))) { + /* Packet to self, enqueue it for loopback */ + LWIP_DEBUGF(IP6_DEBUG, ("netif_loop_output()\n")); + return netif_loop_output(netif, p); + } + } + } +#if LWIP_MULTICAST_TX_OPTIONS + if ((p->flags & PBUF_FLAG_MCASTLOOP) != 0) { + netif_loop_output(netif, p); + } +#endif /* LWIP_MULTICAST_TX_OPTIONS */ +#endif /* ENABLE_LOOPBACK */ +#if LWIP_IPV6_FRAG + /* don't fragment if interface has mtu set to 0 [loopif] */ + if (netif_mtu6(netif) && (p->tot_len > nd6_get_destination_mtu(dest, netif))) { + return ip6_frag(p, netif, dest); + } +#endif /* LWIP_IPV6_FRAG */ + + LWIP_DEBUGF(IP6_DEBUG, ("netif->output_ip6()\n")); + return netif->output_ip6(netif, p, dest); +} + +/** + * Simple interface to ip6_output_if. It finds the outgoing network + * interface and calls upon ip6_output_if to do the actual work. + * + * @param p the packet to send (p->payload points to the data, e.g. next + protocol header; if dest == LWIP_IP_HDRINCL, p already includes an + IPv6 header and p->payload points to that IPv6 header) + * @param src the source IPv6 address to send from (if src == IP6_ADDR_ANY, an + * IP address of the netif is selected and used as source address. + * if src == NULL, IP6_ADDR_ANY is used as source) + * @param dest the destination IPv6 address to send the packet to + * @param hl the Hop Limit value to be set in the IPv6 header + * @param tc the Traffic Class value to be set in the IPv6 header + * @param nexth the Next Header to be set in the IPv6 header + * + * @return ERR_RTE if no route is found + * see ip_output_if() for more return values + */ +err_t +ip6_output(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, + u8_t hl, u8_t tc, u8_t nexth) +{ + struct netif *netif; + struct ip6_hdr *ip6hdr; + ip6_addr_t src_addr, dest_addr; + + LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); + + if (dest != LWIP_IP_HDRINCL) { + netif = ip6_route(src, dest); + } else { + /* IP header included in p, read addresses. */ + ip6hdr = (struct ip6_hdr *)p->payload; + ip6_addr_copy_from_packed(src_addr, ip6hdr->src); + ip6_addr_copy_from_packed(dest_addr, ip6hdr->dest); + netif = ip6_route(&src_addr, &dest_addr); + } + + if (netif == NULL) { + LWIP_DEBUGF(IP6_DEBUG, ("ip6_output: no route for %"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F"\n", + IP6_ADDR_BLOCK1(dest), + IP6_ADDR_BLOCK2(dest), + IP6_ADDR_BLOCK3(dest), + IP6_ADDR_BLOCK4(dest), + IP6_ADDR_BLOCK5(dest), + IP6_ADDR_BLOCK6(dest), + IP6_ADDR_BLOCK7(dest), + IP6_ADDR_BLOCK8(dest))); + IP6_STATS_INC(ip6.rterr); + return ERR_RTE; + } + + return ip6_output_if(p, src, dest, hl, tc, nexth, netif); +} + + +#if LWIP_NETIF_USE_HINTS +/** Like ip6_output, but takes and addr_hint pointer that is passed on to netif->addr_hint + * before calling ip6_output_if. + * + * @param p the packet to send (p->payload points to the data, e.g. next + protocol header; if dest == LWIP_IP_HDRINCL, p already includes an + IPv6 header and p->payload points to that IPv6 header) + * @param src the source IPv6 address to send from (if src == IP6_ADDR_ANY, an + * IP address of the netif is selected and used as source address. + * if src == NULL, IP6_ADDR_ANY is used as source) + * @param dest the destination IPv6 address to send the packet to + * @param hl the Hop Limit value to be set in the IPv6 header + * @param tc the Traffic Class value to be set in the IPv6 header + * @param nexth the Next Header to be set in the IPv6 header + * @param netif_hint netif output hint pointer set to netif->hint before + * calling ip_output_if() + * + * @return ERR_RTE if no route is found + * see ip_output_if() for more return values + */ +err_t +ip6_output_hinted(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, + u8_t hl, u8_t tc, u8_t nexth, struct netif_hint *netif_hint) +{ + struct netif *netif; + struct ip6_hdr *ip6hdr; + ip6_addr_t src_addr, dest_addr; + err_t err; + + LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); + + if (dest != LWIP_IP_HDRINCL) { + netif = ip6_route(src, dest); + } else { + /* IP header included in p, read addresses. */ + ip6hdr = (struct ip6_hdr *)p->payload; + ip6_addr_copy_from_packed(src_addr, ip6hdr->src); + ip6_addr_copy_from_packed(dest_addr, ip6hdr->dest); + netif = ip6_route(&src_addr, &dest_addr); + } + + if (netif == NULL) { + LWIP_DEBUGF(IP6_DEBUG, ("ip6_output: no route for %"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F"\n", + IP6_ADDR_BLOCK1(dest), + IP6_ADDR_BLOCK2(dest), + IP6_ADDR_BLOCK3(dest), + IP6_ADDR_BLOCK4(dest), + IP6_ADDR_BLOCK5(dest), + IP6_ADDR_BLOCK6(dest), + IP6_ADDR_BLOCK7(dest), + IP6_ADDR_BLOCK8(dest))); + IP6_STATS_INC(ip6.rterr); + return ERR_RTE; + } + + NETIF_SET_HINTS(netif, netif_hint); + err = ip6_output_if(p, src, dest, hl, tc, nexth, netif); + NETIF_RESET_HINTS(netif); + + return err; +} +#endif /* LWIP_NETIF_USE_HINTS*/ + +#if LWIP_IPV6_MLD +/** + * Add a hop-by-hop options header with a router alert option and padding. + * + * Used by MLD when sending a Multicast listener report/done message. + * + * @param p the packet to which we will prepend the options header + * @param nexth the next header protocol number (e.g. IP6_NEXTH_ICMP6) + * @param value the value of the router alert option data (e.g. IP6_ROUTER_ALERT_VALUE_MLD) + * @return ERR_OK if hop-by-hop header was added, ERR_* otherwise + */ +err_t +ip6_options_add_hbh_ra(struct pbuf *p, u8_t nexth, u8_t value) +{ + u8_t *opt_data; + u32_t offset = 0; + struct ip6_hbh_hdr *hbh_hdr; + struct ip6_opt_hdr *opt_hdr; + + /* fixed 4 bytes for router alert option and 2 bytes padding */ + const u8_t hlen = (sizeof(struct ip6_opt_hdr) * 2) + IP6_ROUTER_ALERT_DLEN; + /* Move pointer to make room for hop-by-hop options header. */ + if (pbuf_add_header(p, sizeof(struct ip6_hbh_hdr) + hlen)) { + LWIP_DEBUGF(IP6_DEBUG, ("ip6_options: no space for options header\n")); + IP6_STATS_INC(ip6.err); + return ERR_BUF; + } + + /* Set fields of Hop-by-Hop header */ + hbh_hdr = (struct ip6_hbh_hdr *)p->payload; + IP6_HBH_NEXTH(hbh_hdr) = nexth; + hbh_hdr->_hlen = 0; + offset = IP6_HBH_HLEN; + + /* Set router alert options to Hop-by-Hop extended option header */ + opt_hdr = (struct ip6_opt_hdr *)((u8_t *)hbh_hdr + offset); + IP6_OPT_TYPE(opt_hdr) = IP6_ROUTER_ALERT_OPTION; + IP6_OPT_DLEN(opt_hdr) = IP6_ROUTER_ALERT_DLEN; + offset += IP6_OPT_HLEN; + + /* Set router alert option data */ + opt_data = (u8_t *)hbh_hdr + offset; + opt_data[0] = value; + opt_data[1] = 0; + offset += IP6_OPT_DLEN(opt_hdr); + + /* add 2 bytes padding to make 8 bytes Hop-by-Hop header length */ + opt_hdr = (struct ip6_opt_hdr *)((u8_t *)hbh_hdr + offset); + IP6_OPT_TYPE(opt_hdr) = IP6_PADN_OPTION; + IP6_OPT_DLEN(opt_hdr) = 0; + + return ERR_OK; +} +#endif /* LWIP_IPV6_MLD */ + +#if IP6_DEBUG +/* Print an IPv6 header by using LWIP_DEBUGF + * @param p an IPv6 packet, p->payload pointing to the IPv6 header + */ +void +ip6_debug_print(struct pbuf *p) +{ + struct ip6_hdr *ip6hdr = (struct ip6_hdr *)p->payload; + + LWIP_DEBUGF(IP6_DEBUG, ("IPv6 header:\n")); + LWIP_DEBUGF(IP6_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(IP6_DEBUG, ("| %2"U16_F" | %3"U16_F" | %7"U32_F" | (ver, class, flow)\n", + IP6H_V(ip6hdr), + IP6H_TC(ip6hdr), + IP6H_FL(ip6hdr))); + LWIP_DEBUGF(IP6_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(IP6_DEBUG, ("| %5"U16_F" | %3"U16_F" | %3"U16_F" | (plen, nexth, hopl)\n", + IP6H_PLEN(ip6hdr), + IP6H_NEXTH(ip6hdr), + IP6H_HOPLIM(ip6hdr))); + LWIP_DEBUGF(IP6_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(IP6_DEBUG, ("| %4"X32_F" | %4"X32_F" | %4"X32_F" | %4"X32_F" | (src)\n", + IP6_ADDR_BLOCK1(&(ip6hdr->src)), + IP6_ADDR_BLOCK2(&(ip6hdr->src)), + IP6_ADDR_BLOCK3(&(ip6hdr->src)), + IP6_ADDR_BLOCK4(&(ip6hdr->src)))); + LWIP_DEBUGF(IP6_DEBUG, ("| %4"X32_F" | %4"X32_F" | %4"X32_F" | %4"X32_F" |\n", + IP6_ADDR_BLOCK5(&(ip6hdr->src)), + IP6_ADDR_BLOCK6(&(ip6hdr->src)), + IP6_ADDR_BLOCK7(&(ip6hdr->src)), + IP6_ADDR_BLOCK8(&(ip6hdr->src)))); + LWIP_DEBUGF(IP6_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(IP6_DEBUG, ("| %4"X32_F" | %4"X32_F" | %4"X32_F" | %4"X32_F" | (dest)\n", + IP6_ADDR_BLOCK1(&(ip6hdr->dest)), + IP6_ADDR_BLOCK2(&(ip6hdr->dest)), + IP6_ADDR_BLOCK3(&(ip6hdr->dest)), + IP6_ADDR_BLOCK4(&(ip6hdr->dest)))); + LWIP_DEBUGF(IP6_DEBUG, ("| %4"X32_F" | %4"X32_F" | %4"X32_F" | %4"X32_F" |\n", + IP6_ADDR_BLOCK5(&(ip6hdr->dest)), + IP6_ADDR_BLOCK6(&(ip6hdr->dest)), + IP6_ADDR_BLOCK7(&(ip6hdr->dest)), + IP6_ADDR_BLOCK8(&(ip6hdr->dest)))); + LWIP_DEBUGF(IP6_DEBUG, ("+-------------------------------+\n")); +} +#endif /* IP6_DEBUG */ + +#endif /* LWIP_IPV6 */ diff --git a/middleware/lwip/src/core/ipv6/ip6_addr.c b/middleware/lwip/src/core/ipv6/ip6_addr.c new file mode 100644 index 0000000..6e0ac86 --- /dev/null +++ b/middleware/lwip/src/core/ipv6/ip6_addr.c @@ -0,0 +1,355 @@ +/** + * @file + * + * IPv6 addresses. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * Functions for handling IPv6 addresses. + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/ip_addr.h" +#include "lwip/def.h" +#include "lwip/netif.h" + +#include + +#if LWIP_IPV4 +#include "lwip/ip4_addr.h" /* for ip6addr_aton to handle IPv4-mapped addresses */ +#endif /* LWIP_IPV4 */ + +/* used by IP6_ADDR_ANY(6) in ip6_addr.h */ +const ip_addr_t ip6_addr_any = IPADDR6_INIT(0ul, 0ul, 0ul, 0ul); + +#define lwip_xchar(i) ((char)((i) < 10 ? '0' + (i) : 'A' + (i) - 10)) + +/** + * Check whether "cp" is a valid ascii representation + * of an IPv6 address and convert to a binary address. + * Returns 1 if the address is valid, 0 if not. + * + * @param cp IPv6 address in ascii representation (e.g. "FF01::1") + * @param addr pointer to which to save the ip address in network order + * @return 1 if cp could be converted to addr, 0 on failure + */ +int +ip6addr_aton(const char *cp, ip6_addr_t *addr) +{ + u32_t addr_index, zero_blocks, current_block_index, current_block_value; + const char *s; +#if LWIP_IPV4 + int check_ipv4_mapped = 0; +#endif /* LWIP_IPV4 */ + + /* Count the number of colons, to count the number of blocks in a "::" sequence + zero_blocks may be 1 even if there are no :: sequences */ + zero_blocks = 8; + for (s = cp; *s != 0; s++) { + if (*s == ':') { + zero_blocks--; +#if LWIP_IPV4 + } else if (*s == '.') { + if ((zero_blocks == 5) ||(zero_blocks == 2)) { + check_ipv4_mapped = 1; + /* last block could be the start of an IPv4 address */ + zero_blocks--; + } else { + /* invalid format */ + return 0; + } + break; +#endif /* LWIP_IPV4 */ + } else if (!lwip_isxdigit(*s)) { + break; + } + } + + /* parse each block */ + addr_index = 0; + current_block_index = 0; + current_block_value = 0; + for (s = cp; *s != 0; s++) { + if (*s == ':') { + if (addr) { + if (current_block_index & 0x1) { + addr->addr[addr_index++] |= current_block_value; + } + else { + addr->addr[addr_index] = current_block_value << 16; + } + } + current_block_index++; +#if LWIP_IPV4 + if (check_ipv4_mapped) { + if (current_block_index == 6) { + ip4_addr_t ip4; + int ret = ip4addr_aton(s + 1, &ip4); + if (ret) { + if (addr) { + addr->addr[3] = lwip_htonl(ip4.addr); + current_block_index++; + goto fix_byte_order_and_return; + } + return 1; + } + } + } +#endif /* LWIP_IPV4 */ + current_block_value = 0; + if (current_block_index > 7) { + /* address too long! */ + return 0; + } + if (s[1] == ':') { + if (s[2] == ':') { + /* invalid format: three successive colons */ + return 0; + } + s++; + /* "::" found, set zeros */ + while (zero_blocks > 0) { + zero_blocks--; + if (current_block_index & 0x1) { + addr_index++; + } else { + if (addr) { + addr->addr[addr_index] = 0; + } + } + current_block_index++; + if (current_block_index > 7) { + /* address too long! */ + return 0; + } + } + } + } else if (lwip_isxdigit(*s)) { + /* add current digit */ + current_block_value = (current_block_value << 4) + + (lwip_isdigit(*s) ? (u32_t)(*s - '0') : + (u32_t)(10 + (lwip_islower(*s) ? *s - 'a' : *s - 'A'))); + } else { + /* unexpected digit, space? CRLF? */ + break; + } + } + + if (addr) { + if (current_block_index & 0x1) { + addr->addr[addr_index++] |= current_block_value; + } + else { + addr->addr[addr_index] = current_block_value << 16; + } +#if LWIP_IPV4 +fix_byte_order_and_return: +#endif + /* convert to network byte order. */ + for (addr_index = 0; addr_index < 4; addr_index++) { + addr->addr[addr_index] = lwip_htonl(addr->addr[addr_index]); + } + + ip6_addr_clear_zone(addr); +#if LWIP_IPV6_SCOPES + if (*s == '%') { + const char *scopestr = s + 1; + if (*scopestr) { + struct netif *netif = netif_find(scopestr); + if (netif) { + ip6_addr_assign_zone(addr, IP6_UNKNOWN, netif); + } + } + } +#endif + } + + if (current_block_index != 7) { + return 0; + } + + return 1; +} + +/** + * Convert numeric IPv6 address into ASCII representation. + * returns ptr to static buffer; not reentrant! + * + * @param addr ip6 address in network order to convert + * @return pointer to a global static (!) buffer that holds the ASCII + * representation of addr + */ +char * +ip6addr_ntoa(const ip6_addr_t *addr) +{ + static char str[40]; + return ip6addr_ntoa_r(addr, str, 40); +} + +/** + * Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used. + * + * @param addr ip6 address in network order to convert + * @param buf target buffer where the string is stored + * @param buflen length of buf + * @return either pointer to buf which now holds the ASCII + * representation of addr or NULL if buf was too small + */ +char * +ip6addr_ntoa_r(const ip6_addr_t *addr, char *buf, int buflen) +{ + u32_t current_block_index, current_block_value, next_block_value; + s32_t i; + u8_t zero_flag, empty_block_flag; + +#if LWIP_IPV4 + if (ip6_addr_isipv4mappedipv6(addr)) { + /* This is an IPv4 mapped address */ + ip4_addr_t addr4; + char *ret; +#define IP4MAPPED_HEADER "::FFFF:" + char *buf_ip4 = buf + sizeof(IP4MAPPED_HEADER) - 1; + int buflen_ip4 = buflen - sizeof(IP4MAPPED_HEADER) + 1; + if (buflen < (int)sizeof(IP4MAPPED_HEADER)) { + return NULL; + } + memcpy(buf, IP4MAPPED_HEADER, sizeof(IP4MAPPED_HEADER)); + addr4.addr = addr->addr[3]; + ret = ip4addr_ntoa_r(&addr4, buf_ip4, buflen_ip4); + if (ret != buf_ip4) { + return NULL; + } + return buf; + } +#endif /* LWIP_IPV4 */ + i = 0; + empty_block_flag = 0; /* used to indicate a zero chain for "::' */ + + for (current_block_index = 0; current_block_index < 8; current_block_index++) { + /* get the current 16-bit block */ + current_block_value = lwip_htonl(addr->addr[current_block_index >> 1]); + if ((current_block_index & 0x1) == 0) { + current_block_value = current_block_value >> 16; + } + current_block_value &= 0xffff; + + /* Check for empty block. */ + if (current_block_value == 0) { + if (current_block_index == 7 && empty_block_flag == 1) { + /* special case, we must render a ':' for the last block. */ + buf[i++] = ':'; + if (i >= buflen) { + return NULL; + } + break; + } + if (empty_block_flag == 0) { + /* generate empty block "::", but only if more than one contiguous zero block, + * according to current formatting suggestions RFC 5952. */ + next_block_value = lwip_htonl(addr->addr[(current_block_index + 1) >> 1]); + if ((current_block_index & 0x1) == 0x01) { + next_block_value = next_block_value >> 16; + } + next_block_value &= 0xffff; + if (next_block_value == 0) { + empty_block_flag = 1; + buf[i++] = ':'; + if (i >= buflen) { + return NULL; + } + continue; /* move on to next block. */ + } + } else if (empty_block_flag == 1) { + /* move on to next block. */ + continue; + } + } else if (empty_block_flag == 1) { + /* Set this flag value so we don't produce multiple empty blocks. */ + empty_block_flag = 2; + } + + if (current_block_index > 0) { + buf[i++] = ':'; + if (i >= buflen) { + return NULL; + } + } + + if ((current_block_value & 0xf000) == 0) { + zero_flag = 1; + } else { + buf[i++] = lwip_xchar(((current_block_value & 0xf000) >> 12)); + zero_flag = 0; + if (i >= buflen) { + return NULL; + } + } + + if (((current_block_value & 0xf00) == 0) && (zero_flag)) { + /* do nothing */ + } else { + buf[i++] = lwip_xchar(((current_block_value & 0xf00) >> 8)); + zero_flag = 0; + if (i >= buflen) { + return NULL; + } + } + + if (((current_block_value & 0xf0) == 0) && (zero_flag)) { + /* do nothing */ + } + else { + buf[i++] = lwip_xchar(((current_block_value & 0xf0) >> 4)); + zero_flag = 0; + if (i >= buflen) { + return NULL; + } + } + + buf[i++] = lwip_xchar((current_block_value & 0xf)); + if (i >= buflen) { + return NULL; + } + } + + buf[i] = 0; + + return buf; +} + +#endif /* LWIP_IPV6 */ diff --git a/middleware/lwip/src/core/ipv6/ip6_frag.c b/middleware/lwip/src/core/ipv6/ip6_frag.c new file mode 100644 index 0000000..16bcf95 --- /dev/null +++ b/middleware/lwip/src/core/ipv6/ip6_frag.c @@ -0,0 +1,862 @@ +/** + * @file + * + * IPv6 fragmentation and reassembly. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#include "lwip/opt.h" +#include "lwip/ip6_frag.h" +#include "lwip/ip6.h" +#include "lwip/icmp6.h" +#include "lwip/nd6.h" +#include "lwip/ip.h" + +#include "lwip/pbuf.h" +#include "lwip/memp.h" +#include "lwip/stats.h" + +#include + +#if LWIP_IPV6 && LWIP_IPV6_REASS /* don't build if not configured for use in lwipopts.h */ + + +/** Setting this to 0, you can turn off checking the fragments for overlapping + * regions. The code gets a little smaller. Only use this if you know that + * overlapping won't occur on your network! */ +#ifndef IP_REASS_CHECK_OVERLAP +#define IP_REASS_CHECK_OVERLAP 1 +#endif /* IP_REASS_CHECK_OVERLAP */ + +/** Set to 0 to prevent freeing the oldest datagram when the reassembly buffer is + * full (IP_REASS_MAX_PBUFS pbufs are enqueued). The code gets a little smaller. + * Datagrams will be freed by timeout only. Especially useful when MEMP_NUM_REASSDATA + * is set to 1, so one datagram can be reassembled at a time, only. */ +#ifndef IP_REASS_FREE_OLDEST +#define IP_REASS_FREE_OLDEST 1 +#endif /* IP_REASS_FREE_OLDEST */ + +#if IPV6_FRAG_COPYHEADER +/* The number of bytes we need to "borrow" from (i.e., overwrite in) the header + * that precedes the fragment header for reassembly pruposes. */ +#define IPV6_FRAG_REQROOM ((s16_t)(sizeof(struct ip6_reass_helper) - IP6_FRAG_HLEN)) +#endif + +#define IP_REASS_FLAG_LASTFRAG 0x01 + +/** This is a helper struct which holds the starting + * offset and the ending offset of this fragment to + * easily chain the fragments. + * It has the same packing requirements as the IPv6 header, since it replaces + * the Fragment Header in memory in incoming fragments to keep + * track of the various fragments. + */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip6_reass_helper { + PACK_STRUCT_FIELD(struct pbuf *next_pbuf); + PACK_STRUCT_FIELD(u16_t start); + PACK_STRUCT_FIELD(u16_t end); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/* static variables */ +static struct ip6_reassdata *reassdatagrams; +static u16_t ip6_reass_pbufcount; + +/* Forward declarations. */ +static void ip6_reass_free_complete_datagram(struct ip6_reassdata *ipr); +#if IP_REASS_FREE_OLDEST +static void ip6_reass_remove_oldest_datagram(struct ip6_reassdata *ipr, int pbufs_needed); +#endif /* IP_REASS_FREE_OLDEST */ + +void +ip6_reass_tmr(void) +{ + struct ip6_reassdata *r, *tmp; + +#if !IPV6_FRAG_COPYHEADER + LWIP_ASSERT("sizeof(struct ip6_reass_helper) <= IP6_FRAG_HLEN, set IPV6_FRAG_COPYHEADER to 1", + sizeof(struct ip6_reass_helper) <= IP6_FRAG_HLEN); +#endif /* !IPV6_FRAG_COPYHEADER */ + + r = reassdatagrams; + while (r != NULL) { + /* Decrement the timer. Once it reaches 0, + * clean up the incomplete fragment assembly */ + if (r->timer > 0) { + r->timer--; + r = r->next; + } else { + /* reassembly timed out */ + tmp = r; + /* get the next pointer before freeing */ + r = r->next; + /* free the helper struct and all enqueued pbufs */ + ip6_reass_free_complete_datagram(tmp); + } + } +} + +/** + * Free a datagram (struct ip6_reassdata) and all its pbufs. + * Updates the total count of enqueued pbufs (ip6_reass_pbufcount), + * sends an ICMP time exceeded packet. + * + * @param ipr datagram to free + */ +static void +ip6_reass_free_complete_datagram(struct ip6_reassdata *ipr) +{ + struct ip6_reassdata *prev; + u16_t pbufs_freed = 0; + u16_t clen; + struct pbuf *p; + struct ip6_reass_helper *iprh; + +#if LWIP_ICMP6 + iprh = (struct ip6_reass_helper *)ipr->p->payload; + if (iprh->start == 0) { + /* The first fragment was received, send ICMP time exceeded. */ + /* First, de-queue the first pbuf from r->p. */ + p = ipr->p; + ipr->p = iprh->next_pbuf; + /* Restore the part that we've overwritten with our helper structure, or we + * might send garbage (and disclose a pointer) in the ICMPv6 reply. */ + MEMCPY(p->payload, ipr->orig_hdr, sizeof(iprh)); + /* Then, move back to the original ipv6 header (we are now pointing to Fragment header). + This cannot fail since we already checked when receiving this fragment. */ + if (pbuf_header_force(p, (s16_t)((u8_t*)p->payload - (u8_t*)ipr->iphdr))) { + LWIP_ASSERT("ip6_reass_free: moving p->payload to ip6 header failed", 0); + } + else { + /* Reconstruct the zoned source and destination addresses, so that we do + * not end up sending the ICMP response over the wrong link. */ + ip6_addr_t src_addr, dest_addr; + ip6_addr_copy_from_packed(src_addr, IPV6_FRAG_SRC(ipr)); + ip6_addr_set_zone(&src_addr, ipr->src_zone); + ip6_addr_copy_from_packed(dest_addr, IPV6_FRAG_DEST(ipr)); + ip6_addr_set_zone(&dest_addr, ipr->dest_zone); + /* Send the actual ICMP response. */ + icmp6_time_exceeded_with_addrs(p, ICMP6_TE_FRAG, &src_addr, &dest_addr); + } + clen = pbuf_clen(p); + LWIP_ASSERT("pbufs_freed + clen <= 0xffff", pbufs_freed + clen <= 0xffff); + pbufs_freed = (u16_t)(pbufs_freed + clen); + pbuf_free(p); + } +#endif /* LWIP_ICMP6 */ + + /* First, free all received pbufs. The individual pbufs need to be released + separately as they have not yet been chained */ + p = ipr->p; + while (p != NULL) { + struct pbuf *pcur; + iprh = (struct ip6_reass_helper *)p->payload; + pcur = p; + /* get the next pointer before freeing */ + p = iprh->next_pbuf; + clen = pbuf_clen(pcur); + LWIP_ASSERT("pbufs_freed + clen <= 0xffff", pbufs_freed + clen <= 0xffff); + pbufs_freed = (u16_t)(pbufs_freed + clen); + pbuf_free(pcur); + } + + /* Then, unchain the struct ip6_reassdata from the list and free it. */ + if (ipr == reassdatagrams) { + reassdatagrams = ipr->next; + } else { + prev = reassdatagrams; + while (prev != NULL) { + if (prev->next == ipr) { + break; + } + prev = prev->next; + } + if (prev != NULL) { + prev->next = ipr->next; + } + } + memp_free(MEMP_IP6_REASSDATA, ipr); + + /* Finally, update number of pbufs in reassembly queue */ + LWIP_ASSERT("ip_reass_pbufcount >= clen", ip6_reass_pbufcount >= pbufs_freed); + ip6_reass_pbufcount = (u16_t)(ip6_reass_pbufcount - pbufs_freed); +} + +#if IP_REASS_FREE_OLDEST +/** + * Free the oldest datagram to make room for enqueueing new fragments. + * The datagram ipr is not freed! + * + * @param ipr ip6_reassdata for the current fragment + * @param pbufs_needed number of pbufs needed to enqueue + * (used for freeing other datagrams if not enough space) + */ +static void +ip6_reass_remove_oldest_datagram(struct ip6_reassdata *ipr, int pbufs_needed) +{ + struct ip6_reassdata *r, *oldest; + + /* Free datagrams until being allowed to enqueue 'pbufs_needed' pbufs, + * but don't free the current datagram! */ + do { + r = oldest = reassdatagrams; + while (r != NULL) { + if (r != ipr) { + if (r->timer <= oldest->timer) { + /* older than the previous oldest */ + oldest = r; + } + } + r = r->next; + } + if (oldest == ipr) { + /* nothing to free, ipr is the only element on the list */ + return; + } + if (oldest != NULL) { + ip6_reass_free_complete_datagram(oldest); + } + } while (((ip6_reass_pbufcount + pbufs_needed) > IP_REASS_MAX_PBUFS) && (reassdatagrams != NULL)); +} +#endif /* IP_REASS_FREE_OLDEST */ + +/** + * Reassembles incoming IPv6 fragments into an IPv6 datagram. + * + * @param p points to the IPv6 Fragment Header + * @return NULL if reassembly is incomplete, pbuf pointing to + * IPv6 Header if reassembly is complete + */ +struct pbuf * +ip6_reass(struct pbuf *p) +{ + struct ip6_reassdata *ipr, *ipr_prev; + struct ip6_reass_helper *iprh, *iprh_tmp, *iprh_prev=NULL; + struct ip6_frag_hdr *frag_hdr; + u16_t offset, len, start, end; + ptrdiff_t hdrdiff; + u16_t clen; + u8_t valid = 1; + struct pbuf *q, *next_pbuf; + + IP6_FRAG_STATS_INC(ip6_frag.recv); + + /* ip6_frag_hdr must be in the first pbuf, not chained. Checked by caller. */ + LWIP_ASSERT("IPv6 fragment header does not fit in first pbuf", + p->len >= sizeof(struct ip6_frag_hdr)); + + frag_hdr = (struct ip6_frag_hdr *) p->payload; + + clen = pbuf_clen(p); + + offset = lwip_ntohs(frag_hdr->_fragment_offset); + + /* Calculate fragment length from IPv6 payload length. + * Adjust for headers before Fragment Header. + * And finally adjust by Fragment Header length. */ + len = lwip_ntohs(ip6_current_header()->_plen); + hdrdiff = (u8_t*)p->payload - (const u8_t*)ip6_current_header(); + LWIP_ASSERT("not a valid pbuf (ip6_input check missing?)", hdrdiff <= 0xFFFF); + LWIP_ASSERT("not a valid pbuf (ip6_input check missing?)", hdrdiff >= IP6_HLEN); + hdrdiff -= IP6_HLEN; + hdrdiff += IP6_FRAG_HLEN; + if (hdrdiff > len) { + IP6_FRAG_STATS_INC(ip6_frag.proterr); + goto nullreturn; + } + len = (u16_t)(len - hdrdiff); + start = (offset & IP6_FRAG_OFFSET_MASK); + if (start > (0xFFFF - len)) { + /* u16_t overflow, cannot handle this */ + IP6_FRAG_STATS_INC(ip6_frag.proterr); + goto nullreturn; + } + + /* Look for the datagram the fragment belongs to in the current datagram queue, + * remembering the previous in the queue for later dequeueing. */ + for (ipr = reassdatagrams, ipr_prev = NULL; ipr != NULL; ipr = ipr->next) { + /* Check if the incoming fragment matches the one currently present + in the reassembly buffer. If so, we proceed with copying the + fragment into the buffer. */ + if ((frag_hdr->_identification == ipr->identification) && + ip6_addr_packed_eq(ip6_current_src_addr(), &(IPV6_FRAG_SRC(ipr)), ipr->src_zone) && + ip6_addr_packed_eq(ip6_current_dest_addr(), &(IPV6_FRAG_DEST(ipr)), ipr->dest_zone)) { + IP6_FRAG_STATS_INC(ip6_frag.cachehit); + break; + } + ipr_prev = ipr; + } + + if (ipr == NULL) { + /* Enqueue a new datagram into the datagram queue */ + ipr = (struct ip6_reassdata *)memp_malloc(MEMP_IP6_REASSDATA); + if (ipr == NULL) { +#if IP_REASS_FREE_OLDEST + /* Make room and try again. */ + ip6_reass_remove_oldest_datagram(ipr, clen); + ipr = (struct ip6_reassdata *)memp_malloc(MEMP_IP6_REASSDATA); + if (ipr != NULL) { + /* re-search ipr_prev since it might have been removed */ + for (ipr_prev = reassdatagrams; ipr_prev != NULL; ipr_prev = ipr_prev->next) { + if (ipr_prev->next == ipr) { + break; + } + } + } else +#endif /* IP_REASS_FREE_OLDEST */ + { + IP6_FRAG_STATS_INC(ip6_frag.memerr); + goto nullreturn; + } + } + + memset(ipr, 0, sizeof(struct ip6_reassdata)); + ipr->timer = IPV6_REASS_MAXAGE; + + /* enqueue the new structure to the front of the list */ + ipr->next = reassdatagrams; + reassdatagrams = ipr; + + /* Use the current IPv6 header for src/dest address reference. + * Eventually, we will replace it when we get the first fragment + * (it might be this one, in any case, it is done later). */ + /* need to use the none-const pointer here: */ + ipr->iphdr = ip_data.current_ip6_header; +#if IPV6_FRAG_COPYHEADER + MEMCPY(&ipr->src, &ip6_current_header()->src, sizeof(ipr->src)); + MEMCPY(&ipr->dest, &ip6_current_header()->dest, sizeof(ipr->dest)); +#endif /* IPV6_FRAG_COPYHEADER */ +#if LWIP_IPV6_SCOPES + /* Also store the address zone information. + * @todo It is possible that due to netif destruction and recreation, the + * stored zones end up resolving to a different interface. In that case, we + * risk sending a "time exceeded" ICMP response over the wrong link. + * Ideally, netif destruction would clean up matching pending reassembly + * structures, but custom zone mappings would make that non-trivial. */ + ipr->src_zone = ip6_addr_zone(ip6_current_src_addr()); + ipr->dest_zone = ip6_addr_zone(ip6_current_dest_addr()); +#endif /* LWIP_IPV6_SCOPES */ + /* copy the fragmented packet id. */ + ipr->identification = frag_hdr->_identification; + + /* copy the nexth field */ + ipr->nexth = frag_hdr->_nexth; + } + + /* Check if we are allowed to enqueue more datagrams. */ + if ((ip6_reass_pbufcount + clen) > IP_REASS_MAX_PBUFS) { +#if IP_REASS_FREE_OLDEST + ip6_reass_remove_oldest_datagram(ipr, clen); + if ((ip6_reass_pbufcount + clen) <= IP_REASS_MAX_PBUFS) { + /* re-search ipr_prev since it might have been removed */ + for (ipr_prev = reassdatagrams; ipr_prev != NULL; ipr_prev = ipr_prev->next) { + if (ipr_prev->next == ipr) { + break; + } + } + } else +#endif /* IP_REASS_FREE_OLDEST */ + { + /* @todo: send ICMPv6 time exceeded here? */ + /* drop this pbuf */ + IP6_FRAG_STATS_INC(ip6_frag.memerr); + goto nullreturn; + } + } + + /* Overwrite Fragment Header with our own helper struct. */ +#if IPV6_FRAG_COPYHEADER + if (IPV6_FRAG_REQROOM > 0) { + /* Make room for struct ip6_reass_helper (only required if sizeof(void*) > 4). + This cannot fail since we already checked when receiving this fragment. */ + u8_t hdrerr = pbuf_header_force(p, IPV6_FRAG_REQROOM); + LWIP_UNUSED_ARG(hdrerr); /* in case of LWIP_NOASSERT */ + LWIP_ASSERT("no room for struct ip6_reass_helper", hdrerr == 0); + } +#else /* IPV6_FRAG_COPYHEADER */ + LWIP_ASSERT("sizeof(struct ip6_reass_helper) <= IP6_FRAG_HLEN, set IPV6_FRAG_COPYHEADER to 1", + sizeof(struct ip6_reass_helper) <= IP6_FRAG_HLEN); +#endif /* IPV6_FRAG_COPYHEADER */ + + /* Prepare the pointer to the helper structure, and its initial values. + * Do not yet write to the structure itself, as we still have to make a + * backup of the original data, and we should not do that until we know for + * sure that we are going to add this packet to the list. */ + iprh = (struct ip6_reass_helper *)p->payload; + next_pbuf = NULL; + end = (u16_t)(start + len); + + /* find the right place to insert this pbuf */ + /* Iterate through until we either get to the end of the list (append), + * or we find on with a larger offset (insert). */ + for (q = ipr->p; q != NULL;) { + iprh_tmp = (struct ip6_reass_helper*)q->payload; + if (start < iprh_tmp->start) { +#if IP_REASS_CHECK_OVERLAP + if (end > iprh_tmp->start) { + /* fragment overlaps with following, throw away */ + IP6_FRAG_STATS_INC(ip6_frag.proterr); + goto nullreturn; + } + if (iprh_prev != NULL) { + if (start < iprh_prev->end) { + /* fragment overlaps with previous, throw away */ + IP6_FRAG_STATS_INC(ip6_frag.proterr); + goto nullreturn; + } + } +#endif /* IP_REASS_CHECK_OVERLAP */ + /* the new pbuf should be inserted before this */ + next_pbuf = q; + if (iprh_prev != NULL) { + /* not the fragment with the lowest offset */ + iprh_prev->next_pbuf = p; + } else { + /* fragment with the lowest offset */ + ipr->p = p; + } + break; + } else if (start == iprh_tmp->start) { + /* received the same datagram twice: no need to keep the datagram */ + goto nullreturn; +#if IP_REASS_CHECK_OVERLAP + } else if (start < iprh_tmp->end) { + /* overlap: no need to keep the new datagram */ + IP6_FRAG_STATS_INC(ip6_frag.proterr); + goto nullreturn; +#endif /* IP_REASS_CHECK_OVERLAP */ + } else { + /* Check if the fragments received so far have no gaps. */ + if (iprh_prev != NULL) { + if (iprh_prev->end != iprh_tmp->start) { + /* There is a fragment missing between the current + * and the previous fragment */ + valid = 0; + } + } + } + q = iprh_tmp->next_pbuf; + iprh_prev = iprh_tmp; + } + + /* If q is NULL, then we made it to the end of the list. Determine what to do now */ + if (q == NULL) { + if (iprh_prev != NULL) { + /* this is (for now), the fragment with the highest offset: + * chain it to the last fragment */ +#if IP_REASS_CHECK_OVERLAP + LWIP_ASSERT("check fragments don't overlap", iprh_prev->end <= start); +#endif /* IP_REASS_CHECK_OVERLAP */ + iprh_prev->next_pbuf = p; + if (iprh_prev->end != start) { + valid = 0; + } + } else { +#if IP_REASS_CHECK_OVERLAP + LWIP_ASSERT("no previous fragment, this must be the first fragment!", + ipr->p == NULL); +#endif /* IP_REASS_CHECK_OVERLAP */ + /* this is the first fragment we ever received for this ip datagram */ + ipr->p = p; + } + } + + /* Track the current number of pbufs current 'in-flight', in order to limit + the number of fragments that may be enqueued at any one time */ + ip6_reass_pbufcount = (u16_t)(ip6_reass_pbufcount + clen); + + /* Remember IPv6 header if this is the first fragment. */ + if (start == 0) { + /* need to use the none-const pointer here: */ + ipr->iphdr = ip_data.current_ip6_header; + /* Make a backup of the part of the packet data that we are about to + * overwrite, so that we can restore the original later. */ + MEMCPY(ipr->orig_hdr, p->payload, sizeof(*iprh)); + /* For IPV6_FRAG_COPYHEADER there is no need to copy src/dst again, as they + * will be the same as they were. With LWIP_IPV6_SCOPES, the same applies + * to the source/destination zones. */ + } + /* Only after the backup do we get to fill in the actual helper structure. */ + iprh->next_pbuf = next_pbuf; + iprh->start = start; + iprh->end = end; + + /* If this is the last fragment, calculate total packet length. */ + if ((offset & IP6_FRAG_MORE_FLAG) == 0) { + ipr->datagram_len = iprh->end; + } + + /* Additional validity tests: we have received first and last fragment. */ + iprh_tmp = (struct ip6_reass_helper*)ipr->p->payload; + if (iprh_tmp->start != 0) { + valid = 0; + } + if (ipr->datagram_len == 0) { + valid = 0; + } + + /* Final validity test: no gaps between current and last fragment. */ + iprh_prev = iprh; + q = iprh->next_pbuf; + while ((q != NULL) && valid) { + iprh = (struct ip6_reass_helper*)q->payload; + if (iprh_prev->end != iprh->start) { + valid = 0; + break; + } + iprh_prev = iprh; + q = iprh->next_pbuf; + } + + if (valid) { + /* All fragments have been received */ + struct ip6_hdr* iphdr_ptr; + + /* chain together the pbufs contained within the ip6_reassdata list. */ + iprh = (struct ip6_reass_helper*) ipr->p->payload; + while (iprh != NULL) { + next_pbuf = iprh->next_pbuf; + if (next_pbuf != NULL) { + /* Save next helper struct (will be hidden in next step). */ + iprh_tmp = (struct ip6_reass_helper*)next_pbuf->payload; + + /* hide the fragment header for every succeeding fragment */ + pbuf_remove_header(next_pbuf, IP6_FRAG_HLEN); +#if IPV6_FRAG_COPYHEADER + if (IPV6_FRAG_REQROOM > 0) { + /* hide the extra bytes borrowed from ip6_hdr for struct ip6_reass_helper */ + u8_t hdrerr = pbuf_remove_header(next_pbuf, IPV6_FRAG_REQROOM); + LWIP_UNUSED_ARG(hdrerr); /* in case of LWIP_NOASSERT */ + LWIP_ASSERT("no room for struct ip6_reass_helper", hdrerr == 0); + } +#endif + pbuf_cat(ipr->p, next_pbuf); + } + else { + iprh_tmp = NULL; + } + + iprh = iprh_tmp; + } + + /* Get the first pbuf. */ + p = ipr->p; + +#if IPV6_FRAG_COPYHEADER + if (IPV6_FRAG_REQROOM > 0) { + u8_t hdrerr; + /* Restore (only) the bytes that we overwrote beyond the fragment header. + * Those bytes may belong to either the IPv6 header or an extension + * header placed before the fragment header. */ + MEMCPY(p->payload, ipr->orig_hdr, IPV6_FRAG_REQROOM); + /* get back room for struct ip6_reass_helper (only required if sizeof(void*) > 4) */ + hdrerr = pbuf_remove_header(p, IPV6_FRAG_REQROOM); + LWIP_UNUSED_ARG(hdrerr); /* in case of LWIP_NOASSERT */ + LWIP_ASSERT("no room for struct ip6_reass_helper", hdrerr == 0); + } +#endif + + /* We need to get rid of the fragment header itself, which is somewhere in + * the middle of the packet (but still in the first pbuf of the chain). + * Getting rid of the header is required by RFC 2460 Sec. 4.5 and necessary + * in order to be able to reassemble packets that are close to full size + * (i.e., around 65535 bytes). We simply move up all the headers before the + * fragment header, including the IPv6 header, and adjust the payload start + * accordingly. This works because all these headers are in the first pbuf + * of the chain, and because the caller adjusts all its pointers on + * successful reassembly. */ + MEMMOVE((u8_t*)ipr->iphdr + sizeof(struct ip6_frag_hdr), ipr->iphdr, + (size_t)((u8_t*)p->payload - (u8_t*)ipr->iphdr)); + + /* This is where the IPv6 header is now. */ + iphdr_ptr = (struct ip6_hdr*)((u8_t*)ipr->iphdr + + sizeof(struct ip6_frag_hdr)); + + /* Adjust datagram length by adding header lengths. */ + ipr->datagram_len = (u16_t)(ipr->datagram_len + ((u8_t*)p->payload - (u8_t*)iphdr_ptr) + - IP6_HLEN); + + /* Set payload length in ip header. */ + iphdr_ptr->_plen = lwip_htons(ipr->datagram_len); + + /* With the fragment header gone, we now need to adjust the next-header + * field of whatever header was originally before it. Since the packet made + * it through the original header processing routines at least up to the + * fragment header, we do not need any further sanity checks here. */ + if (IP6H_NEXTH(iphdr_ptr) == IP6_NEXTH_FRAGMENT) { + iphdr_ptr->_nexth = ipr->nexth; + } else { + u8_t *ptr = (u8_t *)iphdr_ptr + IP6_HLEN; + while (*ptr != IP6_NEXTH_FRAGMENT) { + ptr += 8 * (1 + ptr[1]); + } + *ptr = ipr->nexth; + } + + /* release the resources allocated for the fragment queue entry */ + if (reassdatagrams == ipr) { + /* it was the first in the list */ + reassdatagrams = ipr->next; + } else { + /* it wasn't the first, so it must have a valid 'prev' */ + LWIP_ASSERT("sanity check linked list", ipr_prev != NULL); + ipr_prev->next = ipr->next; + } + memp_free(MEMP_IP6_REASSDATA, ipr); + + /* adjust the number of pbufs currently queued for reassembly. */ + clen = pbuf_clen(p); + LWIP_ASSERT("ip6_reass_pbufcount >= clen", ip6_reass_pbufcount >= clen); + ip6_reass_pbufcount = (u16_t)(ip6_reass_pbufcount - clen); + + /* Move pbuf back to IPv6 header. This should never fail. */ + if (pbuf_header_force(p, (s16_t)((u8_t*)p->payload - (u8_t*)iphdr_ptr))) { + LWIP_ASSERT("ip6_reass: moving p->payload to ip6 header failed", 0); + pbuf_free(p); + return NULL; + } + + /* Return the pbuf chain */ + return p; + } + /* the datagram is not (yet?) reassembled completely */ + return NULL; + +nullreturn: + IP6_FRAG_STATS_INC(ip6_frag.drop); + pbuf_free(p); + return NULL; +} + +#endif /* LWIP_IPV6 && LWIP_IPV6_REASS */ + +#if LWIP_IPV6 && LWIP_IPV6_FRAG + +#if !LWIP_NETIF_TX_SINGLE_PBUF +/** Allocate a new struct pbuf_custom_ref */ +static struct pbuf_custom_ref* +ip6_frag_alloc_pbuf_custom_ref(void) +{ + return (struct pbuf_custom_ref*)memp_malloc(MEMP_FRAG_PBUF); +} + +/** Free a struct pbuf_custom_ref */ +static void +ip6_frag_free_pbuf_custom_ref(struct pbuf_custom_ref* p) +{ + LWIP_ASSERT("p != NULL", p != NULL); + memp_free(MEMP_FRAG_PBUF, p); +} + +/** Free-callback function to free a 'struct pbuf_custom_ref', called by + * pbuf_free. */ +static void +ip6_frag_free_pbuf_custom(struct pbuf *p) +{ + struct pbuf_custom_ref *pcr = (struct pbuf_custom_ref*)p; + LWIP_ASSERT("pcr != NULL", pcr != NULL); + LWIP_ASSERT("pcr == p", (void*)pcr == (void*)p); + if (pcr->original != NULL) { + pbuf_free(pcr->original); + } + ip6_frag_free_pbuf_custom_ref(pcr); +} +#endif /* !LWIP_NETIF_TX_SINGLE_PBUF */ + +/** + * Fragment an IPv6 datagram if too large for the netif or path MTU. + * + * Chop the datagram in MTU sized chunks and send them in order + * by pointing PBUF_REFs into p + * + * @param p ipv6 packet to send + * @param netif the netif on which to send + * @param dest destination ipv6 address to which to send + * + * @return ERR_OK if sent successfully, err_t otherwise + */ +err_t +ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest) +{ + struct ip6_hdr *original_ip6hdr; + struct ip6_hdr *ip6hdr; + struct ip6_frag_hdr *frag_hdr; + struct pbuf *rambuf; +#if !LWIP_NETIF_TX_SINGLE_PBUF + struct pbuf *newpbuf; + u16_t newpbuflen = 0; + u16_t left_to_copy; +#endif + static u32_t identification; + u16_t left, cop; + const u16_t mtu = nd6_get_destination_mtu(dest, netif); + const u16_t nfb = (u16_t)((mtu - (IP6_HLEN + IP6_FRAG_HLEN)) & IP6_FRAG_OFFSET_MASK); + u16_t fragment_offset = 0; + u16_t last; + u16_t poff = IP6_HLEN; + + identification++; + + original_ip6hdr = (struct ip6_hdr *)p->payload; + + /* @todo we assume there are no options in the unfragmentable part (IPv6 header). */ + LWIP_ASSERT("p->tot_len >= IP6_HLEN", p->tot_len >= IP6_HLEN); + left = (u16_t)(p->tot_len - IP6_HLEN); + + while (left) { + last = (left <= nfb); + + /* Fill this fragment */ + cop = last ? left : nfb; + +#if LWIP_NETIF_TX_SINGLE_PBUF + rambuf = pbuf_alloc(PBUF_IP, cop + IP6_FRAG_HLEN, PBUF_RAM); + if (rambuf == NULL) { + IP6_FRAG_STATS_INC(ip6_frag.memerr); + return ERR_MEM; + } + LWIP_ASSERT("this needs a pbuf in one piece!", + (rambuf->len == rambuf->tot_len) && (rambuf->next == NULL)); + poff += pbuf_copy_partial(p, (u8_t*)rambuf->payload + IP6_FRAG_HLEN, cop, poff); + /* make room for the IP header */ + if (pbuf_add_header(rambuf, IP6_HLEN)) { + pbuf_free(rambuf); + IP6_FRAG_STATS_INC(ip6_frag.memerr); + return ERR_MEM; + } + /* fill in the IP header */ + SMEMCPY(rambuf->payload, original_ip6hdr, IP6_HLEN); + ip6hdr = (struct ip6_hdr *)rambuf->payload; + frag_hdr = (struct ip6_frag_hdr *)((u8_t*)rambuf->payload + IP6_HLEN); +#else + /* When not using a static buffer, create a chain of pbufs. + * The first will be a PBUF_RAM holding the link, IPv6, and Fragment header. + * The rest will be PBUF_REFs mirroring the pbuf chain to be fragged, + * but limited to the size of an mtu. + */ + rambuf = pbuf_alloc(PBUF_LINK, IP6_HLEN + IP6_FRAG_HLEN, PBUF_RAM); + if (rambuf == NULL) { + IP6_FRAG_STATS_INC(ip6_frag.memerr); + return ERR_MEM; + } + LWIP_ASSERT("this needs a pbuf in one piece!", + (rambuf->len >= (IP6_HLEN))); + SMEMCPY(rambuf->payload, original_ip6hdr, IP6_HLEN); + ip6hdr = (struct ip6_hdr *)rambuf->payload; + frag_hdr = (struct ip6_frag_hdr *)((u8_t*)rambuf->payload + IP6_HLEN); + + /* Can just adjust p directly for needed offset. */ + p->payload = (u8_t *)p->payload + poff; + p->len = (u16_t)(p->len - poff); + p->tot_len = (u16_t)(p->tot_len - poff); + + left_to_copy = cop; + while (left_to_copy) { + struct pbuf_custom_ref *pcr; + newpbuflen = (left_to_copy < p->len) ? left_to_copy : p->len; + /* Is this pbuf already empty? */ + if (!newpbuflen) { + p = p->next; + continue; + } + pcr = ip6_frag_alloc_pbuf_custom_ref(); + if (pcr == NULL) { + pbuf_free(rambuf); + IP6_FRAG_STATS_INC(ip6_frag.memerr); + return ERR_MEM; + } + /* Mirror this pbuf, although we might not need all of it. */ + newpbuf = pbuf_alloced_custom(PBUF_RAW, newpbuflen, PBUF_REF, &pcr->pc, p->payload, newpbuflen); + if (newpbuf == NULL) { + ip6_frag_free_pbuf_custom_ref(pcr); + pbuf_free(rambuf); + IP6_FRAG_STATS_INC(ip6_frag.memerr); + return ERR_MEM; + } + pbuf_ref(p); + pcr->original = p; + pcr->pc.custom_free_function = ip6_frag_free_pbuf_custom; + + /* Add it to end of rambuf's chain, but using pbuf_cat, not pbuf_chain + * so that it is removed when pbuf_dechain is later called on rambuf. + */ + pbuf_cat(rambuf, newpbuf); + left_to_copy = (u16_t)(left_to_copy - newpbuflen); + if (left_to_copy) { + p = p->next; + } + } + poff = newpbuflen; +#endif /* LWIP_NETIF_TX_SINGLE_PBUF */ + + /* Set headers */ + frag_hdr->_nexth = original_ip6hdr->_nexth; + frag_hdr->reserved = 0; + frag_hdr->_fragment_offset = lwip_htons((u16_t)((fragment_offset & IP6_FRAG_OFFSET_MASK) | (last ? 0 : IP6_FRAG_MORE_FLAG))); + frag_hdr->_identification = lwip_htonl(identification); + + IP6H_NEXTH_SET(ip6hdr, IP6_NEXTH_FRAGMENT); + IP6H_PLEN_SET(ip6hdr, (u16_t)(cop + IP6_FRAG_HLEN)); + + /* No need for separate header pbuf - we allowed room for it in rambuf + * when allocated. + */ + IP6_FRAG_STATS_INC(ip6_frag.xmit); + netif->output_ip6(netif, rambuf, dest); + + /* Unfortunately we can't reuse rambuf - the hardware may still be + * using the buffer. Instead we free it (and the ensuing chain) and + * recreate it next time round the loop. If we're lucky the hardware + * will have already sent the packet, the free will really free, and + * there will be zero memory penalty. + */ + + pbuf_free(rambuf); + left = (u16_t)(left - cop); + fragment_offset = (u16_t)(fragment_offset + cop); + } + return ERR_OK; +} + +#endif /* LWIP_IPV6 && LWIP_IPV6_FRAG */ diff --git a/middleware/lwip/src/core/ipv6/mld6.c b/middleware/lwip/src/core/ipv6/mld6.c new file mode 100644 index 0000000..ac4fb01 --- /dev/null +++ b/middleware/lwip/src/core/ipv6/mld6.c @@ -0,0 +1,626 @@ +/** + * @file + * Multicast listener discovery + * + * @defgroup mld6 MLD6 + * @ingroup ip6 + * Multicast listener discovery for IPv6. Aims to be compliant with RFC 2710. + * No support for MLDv2.
+ * Note: The allnodes (ff01::1, ff02::1) group is assumed be received by your + * netif since it must always be received for correct IPv6 operation (e.g. SLAAC). + * Ensure the netif filters are configured accordingly!
+ * The netif flags also need NETIF_FLAG_MLD6 flag set to enable MLD6 on a + * netif ("netif->flags |= NETIF_FLAG_MLD6;").
+ * To be called from TCPIP thread. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +/* Based on igmp.c implementation of igmp v2 protocol */ + +#include "lwip/opt.h" + +#if LWIP_IPV6 && LWIP_IPV6_MLD /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/mld6.h" +#include "lwip/prot/mld6.h" +#include "lwip/icmp6.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/ip.h" +#include "lwip/inet_chksum.h" +#include "lwip/pbuf.h" +#include "lwip/netif.h" +#include "lwip/memp.h" +#include "lwip/stats.h" + +#include + + +/* + * MLD constants + */ +#define MLD6_HL 1 +#define MLD6_JOIN_DELAYING_MEMBER_TMR_MS (500) + +#define MLD6_GROUP_NON_MEMBER 0 +#define MLD6_GROUP_DELAYING_MEMBER 1 +#define MLD6_GROUP_IDLE_MEMBER 2 + +/* Forward declarations. */ +static struct mld_group *mld6_new_group(struct netif *ifp, const ip6_addr_t *addr); +static err_t mld6_remove_group(struct netif *netif, struct mld_group *group); +static void mld6_delayed_report(struct mld_group *group, u16_t maxresp); +static void mld6_send(struct netif *netif, struct mld_group *group, u8_t type); + + +/** + * Stop MLD processing on interface + * + * @param netif network interface on which stop MLD processing + */ +err_t +mld6_stop(struct netif *netif) +{ + struct mld_group *group = netif_mld6_data(netif); + + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6, NULL); + + while (group != NULL) { + struct mld_group *next = group->next; /* avoid use-after-free below */ + + /* disable the group at the MAC level */ + if (netif->mld_mac_filter != NULL) { + netif->mld_mac_filter(netif, &(group->group_address), NETIF_DEL_MAC_FILTER); + } + + /* free group */ + memp_free(MEMP_MLD6_GROUP, group); + + /* move to "next" */ + group = next; + } + return ERR_OK; +} + +/** + * Report MLD memberships for this interface + * + * @param netif network interface on which report MLD memberships + */ +void +mld6_report_groups(struct netif *netif) +{ + struct mld_group *group = netif_mld6_data(netif); + + while (group != NULL) { + mld6_delayed_report(group, MLD6_JOIN_DELAYING_MEMBER_TMR_MS); + group = group->next; + } +} + +/** + * Search for a group that is joined on a netif + * + * @param ifp the network interface for which to look + * @param addr the group ipv6 address to search for + * @return a struct mld_group* if the group has been found, + * NULL if the group wasn't found. + */ +struct mld_group * +mld6_lookfor_group(struct netif *ifp, const ip6_addr_t *addr) +{ + struct mld_group *group = netif_mld6_data(ifp); + + while (group != NULL) { + if (ip6_addr_eq(&(group->group_address), addr)) { + return group; + } + group = group->next; + } + + return NULL; +} + + +/** + * create a new group + * + * @param ifp the network interface for which to create + * @param addr the new group ipv6 + * @return a struct mld_group*, + * NULL on memory error. + */ +static struct mld_group * +mld6_new_group(struct netif *ifp, const ip6_addr_t *addr) +{ + struct mld_group *group; + + group = (struct mld_group *)memp_malloc(MEMP_MLD6_GROUP); + if (group != NULL) { + ip6_addr_set(&(group->group_address), addr); + group->timer = 0; /* Not running */ + group->group_state = MLD6_GROUP_IDLE_MEMBER; + group->last_reporter_flag = 0; + group->use = 0; + group->next = netif_mld6_data(ifp); + + netif_set_client_data(ifp, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6, group); + } + + return group; +} + +/** + * Remove a group from the mld_group_list, but do not free it yet + * + * @param group the group to remove + * @return ERR_OK if group was removed from the list, an err_t otherwise + */ +static err_t +mld6_remove_group(struct netif *netif, struct mld_group *group) +{ + err_t err = ERR_OK; + + /* Is it the first group? */ + if (netif_mld6_data(netif) == group) { + netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6, group->next); + } else { + /* look for group further down the list */ + struct mld_group *tmpGroup; + for (tmpGroup = netif_mld6_data(netif); tmpGroup != NULL; tmpGroup = tmpGroup->next) { + if (tmpGroup->next == group) { + tmpGroup->next = group->next; + break; + } + } + /* Group not find group */ + if (tmpGroup == NULL) { + err = ERR_ARG; + } + } + + return err; +} + + +/** + * Process an input MLD message. Called by icmp6_input. + * + * @param p the mld packet, p->payload pointing to the icmpv6 header + * @param inp the netif on which this packet was received + */ +void +mld6_input(struct pbuf *p, struct netif *inp) +{ + struct mld_header *mld_hdr; + struct mld_group *group; + + MLD6_STATS_INC(mld6.recv); + + /* Check that mld header fits in packet. */ + if (p->len < sizeof(struct mld_header)) { + /* @todo debug message */ + pbuf_free(p); + MLD6_STATS_INC(mld6.lenerr); + MLD6_STATS_INC(mld6.drop); + return; + } + + mld_hdr = (struct mld_header *)p->payload; + + switch (mld_hdr->type) { + case ICMP6_TYPE_MLQ: /* Multicast listener query. */ + /* Is it a general query? */ + if (ip6_addr_isallnodes_linklocal(ip6_current_dest_addr()) && + ip6_addr_isany(&(mld_hdr->multicast_address))) { + MLD6_STATS_INC(mld6.rx_general); + /* Report all groups, except all nodes group, and if-local groups. */ + group = netif_mld6_data(inp); + while (group != NULL) { + if ((!(ip6_addr_ismulticast_iflocal(&(group->group_address)))) && + (!(ip6_addr_isallnodes_linklocal(&(group->group_address))))) { + mld6_delayed_report(group, lwip_ntohs(mld_hdr->max_resp_delay)); + } + group = group->next; + } + } else { + /* Have we joined this group? + * We use IP6 destination address to have a memory aligned copy. + * mld_hdr->multicast_address should be the same. */ + MLD6_STATS_INC(mld6.rx_group); + group = mld6_lookfor_group(inp, ip6_current_dest_addr()); + if (group != NULL) { + /* Schedule a report. */ + mld6_delayed_report(group, lwip_ntohs(mld_hdr->max_resp_delay)); + } + } + break; /* ICMP6_TYPE_MLQ */ + case ICMP6_TYPE_MLR: /* Multicast listener report. */ + /* Have we joined this group? + * We use IP6 destination address to have a memory aligned copy. + * mld_hdr->multicast_address should be the same. */ + MLD6_STATS_INC(mld6.rx_report); + group = mld6_lookfor_group(inp, ip6_current_dest_addr()); + if (group != NULL) { + /* If we are waiting to report, cancel it. */ + if (group->group_state == MLD6_GROUP_DELAYING_MEMBER) { + group->timer = 0; /* stopped */ + group->group_state = MLD6_GROUP_IDLE_MEMBER; + group->last_reporter_flag = 0; + } + } + break; /* ICMP6_TYPE_MLR */ + case ICMP6_TYPE_MLD: /* Multicast listener done. */ + /* Do nothing, router will query us. */ + break; /* ICMP6_TYPE_MLD */ + default: + MLD6_STATS_INC(mld6.proterr); + MLD6_STATS_INC(mld6.drop); + break; + } + + pbuf_free(p); +} + +/** + * @ingroup mld6 + * Join a group on one or all network interfaces. + * + * If the group is to be joined on all interfaces, the given group address must + * not have a zone set (i.e., it must have its zone index set to IP6_NO_ZONE). + * If the group is to be joined on one particular interface, the given group + * address may or may not have a zone set. + * + * @param srcaddr ipv6 address (zoned) of the network interface which should + * join a new group. If IP6_ADDR_ANY6, join on all netifs + * @param groupaddr the ipv6 address of the group to join (possibly but not + * necessarily zoned) + * @return ERR_OK if group was joined on the netif(s), an err_t otherwise + */ +err_t +mld6_joingroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr) +{ + err_t err = ERR_VAL; /* no matching interface */ + struct netif *netif; + + LWIP_ASSERT_CORE_LOCKED(); + + /* loop through netif's */ + NETIF_FOREACH(netif) { + /* Should we join this interface ? */ + if (ip6_addr_isany(srcaddr) || + netif_get_ip6_addr_match(netif, srcaddr) >= 0) { + err = mld6_joingroup_netif(netif, groupaddr); + if (err != ERR_OK) { + return err; + } + } + } + + return err; +} + +/** + * @ingroup mld6 + * Join a group on a network interface. + * + * @param netif the network interface which should join a new group. + * @param groupaddr the ipv6 address of the group to join (possibly but not + * necessarily zoned) + * @return ERR_OK if group was joined on the netif, an err_t otherwise + */ +err_t +mld6_joingroup_netif(struct netif *netif, const ip6_addr_t *groupaddr) +{ + struct mld_group *group; +#if LWIP_IPV6_SCOPES + ip6_addr_t ip6addr; + + /* If the address has a particular scope but no zone set, use the netif to + * set one now. Within the mld6 module, all addresses are properly zoned. */ + if (ip6_addr_lacks_zone(groupaddr, IP6_MULTICAST)) { + ip6_addr_set(&ip6addr, groupaddr); + ip6_addr_assign_zone(&ip6addr, IP6_MULTICAST, netif); + groupaddr = &ip6addr; + } + IP6_ADDR_ZONECHECK_NETIF(groupaddr, netif); +#endif /* LWIP_IPV6_SCOPES */ + + LWIP_ASSERT_CORE_LOCKED(); + + /* find group or create a new one if not found */ + group = mld6_lookfor_group(netif, groupaddr); + + if (group == NULL) { + /* Joining a new group. Create a new group entry. */ + group = mld6_new_group(netif, groupaddr); + if (group == NULL) { + return ERR_MEM; + } + + /* Activate this address on the MAC layer. */ + if (netif->mld_mac_filter != NULL) { + netif->mld_mac_filter(netif, groupaddr, NETIF_ADD_MAC_FILTER); + } + + /* Report our membership. */ + MLD6_STATS_INC(mld6.tx_report); + mld6_send(netif, group, ICMP6_TYPE_MLR); + mld6_delayed_report(group, MLD6_JOIN_DELAYING_MEMBER_TMR_MS); + } + + /* Increment group use */ + group->use++; + return ERR_OK; +} + +/** + * @ingroup mld6 + * Leave a group on a network interface. + * + * Zoning of address follows the same rules as @ref mld6_joingroup. + * + * @param srcaddr ipv6 address (zoned) of the network interface which should + * leave the group. If IP6_ADDR_ANY6, leave on all netifs + * @param groupaddr the ipv6 address of the group to leave (possibly, but not + * necessarily zoned) + * @return ERR_OK if group was left on the netif(s), an err_t otherwise + */ +err_t +mld6_leavegroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr) +{ + err_t err = ERR_VAL; /* no matching interface */ + struct netif *netif; + + LWIP_ASSERT_CORE_LOCKED(); + + /* loop through netif's */ + NETIF_FOREACH(netif) { + /* Should we leave this interface ? */ + if (ip6_addr_isany(srcaddr) || + netif_get_ip6_addr_match(netif, srcaddr) >= 0) { + err_t res = mld6_leavegroup_netif(netif, groupaddr); + if (err != ERR_OK) { + /* Store this result if we have not yet gotten a success */ + err = res; + } + } + } + + return err; +} + +/** + * @ingroup mld6 + * Leave a group on a network interface. + * + * @param netif the network interface which should leave the group. + * @param groupaddr the ipv6 address of the group to leave (possibly, but not + * necessarily zoned) + * @return ERR_OK if group was left on the netif, an err_t otherwise + */ +err_t +mld6_leavegroup_netif(struct netif *netif, const ip6_addr_t *groupaddr) +{ + struct mld_group *group; +#if LWIP_IPV6_SCOPES + ip6_addr_t ip6addr; + + if (ip6_addr_lacks_zone(groupaddr, IP6_MULTICAST)) { + ip6_addr_set(&ip6addr, groupaddr); + ip6_addr_assign_zone(&ip6addr, IP6_MULTICAST, netif); + groupaddr = &ip6addr; + } + IP6_ADDR_ZONECHECK_NETIF(groupaddr, netif); +#endif /* LWIP_IPV6_SCOPES */ + + LWIP_ASSERT_CORE_LOCKED(); + + /* find group */ + group = mld6_lookfor_group(netif, groupaddr); + + if (group != NULL) { + /* Leave if there is no other use of the group */ + if (group->use <= 1) { + /* Remove the group from the list */ + mld6_remove_group(netif, group); + + /* If we are the last reporter for this group */ + if (group->last_reporter_flag) { + MLD6_STATS_INC(mld6.tx_leave); + mld6_send(netif, group, ICMP6_TYPE_MLD); + } + + /* Disable the group at the MAC level */ + if (netif->mld_mac_filter != NULL) { + netif->mld_mac_filter(netif, groupaddr, NETIF_DEL_MAC_FILTER); + } + + /* free group struct */ + memp_free(MEMP_MLD6_GROUP, group); + } else { + /* Decrement group use */ + group->use--; + } + + /* Left group */ + return ERR_OK; + } + + /* Group not found */ + return ERR_VAL; +} + + +/** + * Periodic timer for mld processing. Must be called every + * MLD6_TMR_INTERVAL milliseconds (100). + * + * When a delaying member expires, a membership report is sent. + */ +void +mld6_tmr(void) +{ + struct netif *netif; + + NETIF_FOREACH(netif) { + struct mld_group *group = netif_mld6_data(netif); + + while (group != NULL) { + if (group->timer > 0) { + group->timer--; + if (group->timer == 0) { + /* If the state is MLD6_GROUP_DELAYING_MEMBER then we send a report for this group */ + if (group->group_state == MLD6_GROUP_DELAYING_MEMBER) { + MLD6_STATS_INC(mld6.tx_report); + mld6_send(netif, group, ICMP6_TYPE_MLR); + group->group_state = MLD6_GROUP_IDLE_MEMBER; + } + } + } + group = group->next; + } + } +} + +/** + * Schedule a delayed membership report for a group + * + * @param group the mld_group for which "delaying" membership report + * should be sent + * @param maxresp_in the max resp delay provided in the query + */ +static void +mld6_delayed_report(struct mld_group *group, u16_t maxresp_in) +{ + /* Convert maxresp from milliseconds to tmr ticks */ + u16_t maxresp = maxresp_in / MLD6_TMR_INTERVAL; + if (maxresp == 0) { + maxresp = 1; + } + +#ifdef LWIP_RAND + /* Randomize maxresp. (if LWIP_RAND is supported) */ + maxresp = (u16_t)(LWIP_RAND() % maxresp); + if (maxresp == 0) { + maxresp = 1; + } +#endif /* LWIP_RAND */ + + /* Apply timer value if no report has been scheduled already. */ + if ((group->group_state == MLD6_GROUP_IDLE_MEMBER) || + ((group->group_state == MLD6_GROUP_DELAYING_MEMBER) && + ((group->timer == 0) || (maxresp < group->timer)))) { + group->timer = maxresp; + group->group_state = MLD6_GROUP_DELAYING_MEMBER; + } +} + +/** + * Send a MLD message (report or done). + * + * An IPv6 hop-by-hop options header with a router alert option + * is prepended. + * + * @param group the group to report or quit + * @param type ICMP6_TYPE_MLR (report) or ICMP6_TYPE_MLD (done) + */ +static void +mld6_send(struct netif *netif, struct mld_group *group, u8_t type) +{ + struct mld_header *mld_hdr; + struct pbuf *p; + const ip6_addr_t *src_addr; + + /* Allocate a packet. Size is MLD header + IPv6 Hop-by-hop options header. */ + p = pbuf_alloc(PBUF_IP, sizeof(struct mld_header) + MLD6_HBH_HLEN, PBUF_RAM); + if (p == NULL) { + MLD6_STATS_INC(mld6.memerr); + return; + } + + /* Move to make room for Hop-by-hop options header. */ + if (pbuf_remove_header(p, MLD6_HBH_HLEN)) { + pbuf_free(p); + MLD6_STATS_INC(mld6.lenerr); + return; + } + + /* Select our source address. */ + if (!ip6_addr_isvalid(netif_ip6_addr_state(netif, 0))) { + /* This is a special case, when we are performing duplicate address detection. + * We must join the multicast group, but we don't have a valid address yet. */ + src_addr = IP6_ADDR_ANY6; + } else { + /* Use link-local address as source address. */ + src_addr = netif_ip6_addr(netif, 0); + } + + /* MLD message header pointer. */ + mld_hdr = (struct mld_header *)p->payload; + + /* Set fields. */ + mld_hdr->type = type; + mld_hdr->code = 0; + mld_hdr->chksum = 0; + mld_hdr->max_resp_delay = 0; + mld_hdr->reserved = 0; + ip6_addr_copy_to_packed(mld_hdr->multicast_address, group->group_address); + +#if CHECKSUM_GEN_ICMP6 + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP6) { + mld_hdr->chksum = ip6_chksum_pseudo(p, IP6_NEXTH_ICMP6, p->len, + src_addr, &(group->group_address)); + } +#endif /* CHECKSUM_GEN_ICMP6 */ + + /* Add hop-by-hop headers options: router alert with MLD value. */ + ip6_options_add_hbh_ra(p, IP6_NEXTH_ICMP6, IP6_ROUTER_ALERT_VALUE_MLD); + + if (type == ICMP6_TYPE_MLR) { + /* Remember we were the last to report */ + group->last_reporter_flag = 1; + } + + /* Send the packet out. */ + MLD6_STATS_INC(mld6.xmit); + ip6_output_if(p, (ip6_addr_isany(src_addr)) ? NULL : src_addr, &(group->group_address), + MLD6_HL, 0, IP6_NEXTH_HOPBYHOP, netif); + pbuf_free(p); +} + +#endif /* LWIP_IPV6 */ diff --git a/middleware/lwip/src/core/ipv6/nd6.c b/middleware/lwip/src/core/ipv6/nd6.c new file mode 100644 index 0000000..d4673ca --- /dev/null +++ b/middleware/lwip/src/core/ipv6/nd6.c @@ -0,0 +1,2474 @@ +/** + * @file + * + * Neighbor discovery and stateless address autoconfiguration for IPv6. + * Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 + * (Address autoconfiguration). + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#include "lwip/opt.h" + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/nd6.h" +#include "lwip/priv/nd6_priv.h" +#include "lwip/prot/nd6.h" +#include "lwip/prot/icmp6.h" +#include "lwip/pbuf.h" +#include "lwip/mem.h" +#include "lwip/memp.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/inet_chksum.h" +#include "lwip/netif.h" +#include "lwip/icmp6.h" +#include "lwip/mld6.h" +#include "lwip/dhcp6.h" +#include "lwip/ip.h" +#include "lwip/stats.h" +#include "lwip/dns.h" + +#include + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif + +#if LWIP_IPV6_DUP_DETECT_ATTEMPTS > IP6_ADDR_TENTATIVE_COUNT_MASK +#error LWIP_IPV6_DUP_DETECT_ATTEMPTS > IP6_ADDR_TENTATIVE_COUNT_MASK +#endif +#if LWIP_ND6_NUM_NEIGHBORS > 127 +#error LWIP_ND6_NUM_NEIGHBORS must fit into an s8_t (max value: 127) +#endif +#if LWIP_ND6_NUM_DESTINATIONS > 32767 +#error LWIP_ND6_NUM_DESTINATIONS must fit into an s16_t (max value: 32767) +#endif +#if LWIP_ND6_NUM_PREFIXES > 127 +#error LWIP_ND6_NUM_PREFIXES must fit into an s8_t (max value: 127) +#endif +#if LWIP_ND6_NUM_ROUTERS > 127 +#error LWIP_ND6_NUM_ROUTERS must fit into an s8_t (max value: 127) +#endif + +/* Router tables. */ +struct nd6_neighbor_cache_entry neighbor_cache[LWIP_ND6_NUM_NEIGHBORS]; +struct nd6_destination_cache_entry destination_cache[LWIP_ND6_NUM_DESTINATIONS]; +struct nd6_prefix_list_entry prefix_list[LWIP_ND6_NUM_PREFIXES]; +struct nd6_router_list_entry default_router_list[LWIP_ND6_NUM_ROUTERS]; + +/* Default values, can be updated by a RA message. */ +u32_t reachable_time = LWIP_ND6_REACHABLE_TIME; +u32_t retrans_timer = LWIP_ND6_RETRANS_TIMER; /* @todo implement this value in timer */ + +#if LWIP_ND6_QUEUEING +u8_t nd6_queue_size = 0; +#endif + +/* Index for cache entries. */ +static netif_addr_idx_t nd6_cached_destination_index; + +/* Multicast address holder. */ +static ip6_addr_t multicast_address; + +static u8_t nd6_tmr_rs_reduction; + +/* Static buffer to parse RA packet options */ +union ra_options { + struct lladdr_option lladdr; + struct mtu_option mtu; + struct prefix_option prefix; +#if LWIP_ND6_RDNSS_MAX_DNS_SERVERS + struct rdnss_option rdnss; +#endif +}; +static union ra_options nd6_ra_buffer; + +/* Forward declarations. */ +static s8_t nd6_find_neighbor_cache_entry(const ip6_addr_t *ip6addr); +static s8_t nd6_new_neighbor_cache_entry(void); +static void nd6_free_neighbor_cache_entry(s8_t i); +static s16_t nd6_find_destination_cache_entry(const ip6_addr_t *ip6addr); +static s16_t nd6_new_destination_cache_entry(void); +static int nd6_is_prefix_in_netif(const ip6_addr_t *ip6addr, struct netif *netif); +static s8_t nd6_select_router(const ip6_addr_t *ip6addr, struct netif *netif); +static s8_t nd6_get_router(const ip6_addr_t *router_addr, struct netif *netif); +static s8_t nd6_new_router(const ip6_addr_t *router_addr, struct netif *netif); +static s8_t nd6_get_onlink_prefix(const ip6_addr_t *prefix, struct netif *netif); +static s8_t nd6_new_onlink_prefix(const ip6_addr_t *prefix, struct netif *netif); +static s8_t nd6_get_next_hop_entry(const ip6_addr_t *ip6addr, struct netif *netif); +static err_t nd6_queue_packet(s8_t neighbor_index, struct pbuf *q); + +#define ND6_SEND_FLAG_MULTICAST_DEST 0x01 +#define ND6_SEND_FLAG_ALLNODES_DEST 0x02 +#define ND6_SEND_FLAG_ANY_SRC 0x04 +static void nd6_send_ns(struct netif *netif, const ip6_addr_t *target_addr, u8_t flags); +static void nd6_send_na(struct netif *netif, const ip6_addr_t *target_addr, u8_t flags); +static void nd6_send_neighbor_cache_probe(struct nd6_neighbor_cache_entry *entry, u8_t flags); +#if LWIP_IPV6_SEND_ROUTER_SOLICIT +static err_t nd6_send_rs(struct netif *netif); +#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ + +#if LWIP_ND6_QUEUEING +static void nd6_free_q(struct nd6_q_entry *q); +#else /* LWIP_ND6_QUEUEING */ +#define nd6_free_q(q) pbuf_free(q) +#endif /* LWIP_ND6_QUEUEING */ +static void nd6_send_q(s8_t i); + + +/** + * A local address has been determined to be a duplicate. Take the appropriate + * action(s) on the address and the interface as a whole. + * + * @param netif the netif that owns the address + * @param addr_idx the index of the address detected to be a duplicate + */ +static void +nd6_duplicate_addr_detected(struct netif *netif, s8_t addr_idx) +{ + + /* Mark the address as duplicate, but leave its lifetimes alone. If this was + * a manually assigned address, it will remain in existence as duplicate, and + * as such be unusable for any practical purposes until manual intervention. + * If this was an autogenerated address, the address will follow normal + * expiration rules, and thus disappear once its valid lifetime expires. */ + netif_ip6_addr_set_state(netif, addr_idx, IP6_ADDR_DUPLICATED); + +#if LWIP_IPV6_AUTOCONFIG + /* If the affected address was the link-local address that we use to generate + * all other addresses, then we should not continue to use those derived + * addresses either, so mark them as duplicate as well. For autoconfig-only + * setups, this will make the interface effectively unusable, approaching the + * intention of RFC 4862 Sec. 5.4.5. @todo implement the full requirements */ + if (addr_idx == 0) { + s8_t i; + for (i = 1; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (!ip6_addr_isinvalid(netif_ip6_addr_state(netif, i)) && + !netif_ip6_addr_isstatic(netif, i)) { + netif_ip6_addr_set_state(netif, i, IP6_ADDR_DUPLICATED); + } + } + } +#endif /* LWIP_IPV6_AUTOCONFIG */ +} + +#if LWIP_IPV6_AUTOCONFIG +/** + * We received a router advertisement that contains a prefix with the + * autoconfiguration flag set. Add or update an associated autogenerated + * address. + * + * @param netif the netif on which the router advertisement arrived + * @param prefix_opt a pointer to the prefix option data + * @param prefix_addr an aligned copy of the prefix address + */ +static void +nd6_process_autoconfig_prefix(struct netif *netif, + struct prefix_option *prefix_opt, const ip6_addr_t *prefix_addr) +{ + ip6_addr_t ip6addr; + u32_t valid_life, pref_life; + u8_t addr_state; + s8_t i, free_idx; + + /* The caller already checks RFC 4862 Sec. 5.5.3 points (a) and (b). We do + * the rest, starting with checks for (c) and (d) here. */ + valid_life = lwip_htonl(prefix_opt->valid_lifetime); + pref_life = lwip_htonl(prefix_opt->preferred_lifetime); + if (pref_life > valid_life || prefix_opt->prefix_length != 64) { + return; /* silently ignore this prefix for autoconfiguration purposes */ + } + + /* If an autogenerated address already exists for this prefix, update its + * lifetimes. An address is considered autogenerated if 1) it is not static + * (i.e., manually assigned), and 2) there is an advertised autoconfiguration + * prefix for it (the one we are processing here). This does not necessarily + * exclude the possibility that the address was actually assigned by, say, + * DHCPv6. If that distinction becomes important in the future, more state + * must be kept. As explained elsewhere we also update lifetimes of tentative + * and duplicate addresses. Skip address slot 0 (the link-local address). */ + for (i = 1; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + addr_state = netif_ip6_addr_state(netif, i); + if (!ip6_addr_isinvalid(addr_state) && !netif_ip6_addr_isstatic(netif, i) && + ip6_addr_net_eq(prefix_addr, netif_ip6_addr(netif, i))) { + /* Update the valid lifetime, as per RFC 4862 Sec. 5.5.3 point (e). + * The valid lifetime will never drop to zero as a result of this. */ + u32_t remaining_life = netif_ip6_addr_valid_life(netif, i); + if (valid_life > ND6_2HRS || valid_life > remaining_life) { + netif_ip6_addr_set_valid_life(netif, i, valid_life); + } else if (remaining_life > ND6_2HRS) { + netif_ip6_addr_set_valid_life(netif, i, ND6_2HRS); + } + LWIP_ASSERT("bad valid lifetime", !netif_ip6_addr_isstatic(netif, i)); + /* Update the preferred lifetime. No bounds checks are needed here. In + * rare cases the advertisement may un-deprecate the address, though. + * Deprecation is left to the timer code where it is handled anyway. */ + if (pref_life > 0 && addr_state == IP6_ADDR_DEPRECATED) { + netif_ip6_addr_set_state(netif, i, IP6_ADDR_PREFERRED); + } + netif_ip6_addr_set_pref_life(netif, i, pref_life); + return; /* there should be at most one matching address */ + } + } + + /* No autogenerated address exists for this prefix yet. See if we can add a + * new one. However, if IPv6 autoconfiguration is administratively disabled, + * do not generate new addresses, but do keep updating lifetimes for existing + * addresses. Also, when adding new addresses, we must protect explicitly + * against a valid lifetime of zero, because again, we use that as a special + * value. The generated address would otherwise expire immediately anyway. + * Finally, the original link-local address must be usable at all. We start + * creating addresses even if the link-local address is still in tentative + * state though, and deal with the fallout of that upon DAD collision. */ + addr_state = netif_ip6_addr_state(netif, 0); + if (!netif->ip6_autoconfig_enabled || valid_life == IP6_ADDR_LIFE_STATIC || + ip6_addr_isinvalid(addr_state) || ip6_addr_isduplicated(addr_state)) { + return; + } + + /* Construct the new address that we intend to use, and then see if that + * address really does not exist. It might have been added manually, after + * all. As a side effect, find a free slot. Note that we cannot use + * netif_add_ip6_address() here, as it would return ERR_OK if the address + * already did exist, resulting in that address being given lifetimes. */ + IP6_ADDR(&ip6addr, prefix_addr->addr[0], prefix_addr->addr[1], + netif_ip6_addr(netif, 0)->addr[2], netif_ip6_addr(netif, 0)->addr[3]); + ip6_addr_assign_zone(&ip6addr, IP6_UNICAST, netif); + + free_idx = 0; + for (i = 1; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (!ip6_addr_isinvalid(netif_ip6_addr_state(netif, i))) { + if (ip6_addr_eq(&ip6addr, netif_ip6_addr(netif, i))) { + return; /* formed address already exists */ + } + } else if (free_idx == 0) { + free_idx = i; + } + } + if (free_idx == 0) { + return; /* no address slots available, try again on next advertisement */ + } + + /* Assign the new address to the interface. */ + ip_addr_copy_from_ip6(netif->ip6_addr[free_idx], ip6addr); + netif_ip6_addr_set_valid_life(netif, free_idx, valid_life); + netif_ip6_addr_set_pref_life(netif, free_idx, pref_life); + netif_ip6_addr_set_state(netif, free_idx, IP6_ADDR_TENTATIVE); +} +#endif /* LWIP_IPV6_AUTOCONFIG */ + +/** + * Process an incoming neighbor discovery message + * + * @param p the nd packet, p->payload pointing to the icmpv6 header + * @param inp the netif on which this packet was received + */ +void +nd6_input(struct pbuf *p, struct netif *inp) +{ + u8_t msg_type; + s8_t i; + s16_t dest_idx; + + ND6_STATS_INC(nd6.recv); + + msg_type = *((u8_t *)p->payload); + switch (msg_type) { + case ICMP6_TYPE_NA: /* Neighbor Advertisement. */ + { + struct na_header *na_hdr; + struct lladdr_option *lladdr_opt; + ip6_addr_t target_address; + + /* Check that na header fits in packet. */ + if (p->len < (sizeof(struct na_header))) { + /* @todo debug message */ + pbuf_free(p); + ND6_STATS_INC(nd6.lenerr); + ND6_STATS_INC(nd6.drop); + return; + } + + na_hdr = (struct na_header *)p->payload; + + /* Create an aligned, zoned copy of the target address. */ + ip6_addr_copy_from_packed(target_address, na_hdr->target_address); + ip6_addr_assign_zone(&target_address, IP6_UNICAST, inp); + + /* Check a subset of the other RFC 4861 Sec. 7.1.2 requirements. */ + if (IP6H_HOPLIM(ip6_current_header()) != ND6_HOPLIM || na_hdr->code != 0 || + ip6_addr_ismulticast(&target_address)) { + pbuf_free(p); + ND6_STATS_INC(nd6.proterr); + ND6_STATS_INC(nd6.drop); + return; + } + + /* @todo RFC MUST: if IP destination is multicast, Solicited flag is zero */ + /* @todo RFC MUST: all included options have a length greater than zero */ + + /* Unsolicited NA?*/ + if (ip6_addr_ismulticast(ip6_current_dest_addr())) { + /* This is an unsolicited NA. + * link-layer changed? + * part of DAD mechanism? */ + +#if LWIP_IPV6_DUP_DETECT_ATTEMPTS + /* If the target address matches this netif, it is a DAD response. */ + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (!ip6_addr_isinvalid(netif_ip6_addr_state(inp, i)) && + !ip6_addr_isduplicated(netif_ip6_addr_state(inp, i)) && + ip6_addr_eq(&target_address, netif_ip6_addr(inp, i))) { + /* We are using a duplicate address. */ + nd6_duplicate_addr_detected(inp, i); + + pbuf_free(p); + return; + } + } +#endif /* LWIP_IPV6_DUP_DETECT_ATTEMPTS */ + + /* Check that link-layer address option also fits in packet. */ + if (p->len < (sizeof(struct na_header) + 2)) { + /* @todo debug message */ + pbuf_free(p); + ND6_STATS_INC(nd6.lenerr); + ND6_STATS_INC(nd6.drop); + return; + } + + lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct na_header)); + + if (p->len < (sizeof(struct na_header) + (lladdr_opt->length << 3))) { + /* @todo debug message */ + pbuf_free(p); + ND6_STATS_INC(nd6.lenerr); + ND6_STATS_INC(nd6.drop); + return; + } + + /* This is an unsolicited NA, most likely there was a LLADDR change. */ + i = nd6_find_neighbor_cache_entry(&target_address); + if (i >= 0) { + if (na_hdr->flags & ND6_FLAG_OVERRIDE) { + MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); + } + } + } else { + /* This is a solicited NA. + * neighbor address resolution response? + * neighbor unreachability detection response? */ + + /* Find the cache entry corresponding to this na. */ + i = nd6_find_neighbor_cache_entry(&target_address); + if (i < 0) { + /* We no longer care about this target address. drop it. */ + pbuf_free(p); + return; + } + + /* Update cache entry. */ + if ((na_hdr->flags & ND6_FLAG_OVERRIDE) || + (neighbor_cache[i].state == ND6_INCOMPLETE)) { + /* Check that link-layer address option also fits in packet. */ + if (p->len < (sizeof(struct na_header) + 2)) { + /* @todo debug message */ + pbuf_free(p); + ND6_STATS_INC(nd6.lenerr); + ND6_STATS_INC(nd6.drop); + return; + } + + lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct na_header)); + + if (p->len < (sizeof(struct na_header) + (lladdr_opt->length << 3))) { + /* @todo debug message */ + pbuf_free(p); + ND6_STATS_INC(nd6.lenerr); + ND6_STATS_INC(nd6.drop); + return; + } + + MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); + } + + neighbor_cache[i].netif = inp; + neighbor_cache[i].state = ND6_REACHABLE; + neighbor_cache[i].counter.reachable_time = reachable_time; + + /* Send queued packets, if any. */ + if (neighbor_cache[i].q != NULL) { + nd6_send_q(i); + } + } + + break; /* ICMP6_TYPE_NA */ + } + case ICMP6_TYPE_NS: /* Neighbor solicitation. */ + { + struct ns_header *ns_hdr; + struct lladdr_option *lladdr_opt; + ip6_addr_t target_address; + u8_t accepted; + + /* Check that ns header fits in packet. */ + if (p->len < sizeof(struct ns_header)) { + /* @todo debug message */ + pbuf_free(p); + ND6_STATS_INC(nd6.lenerr); + ND6_STATS_INC(nd6.drop); + return; + } + + ns_hdr = (struct ns_header *)p->payload; + + /* Create an aligned, zoned copy of the target address. */ + ip6_addr_copy_from_packed(target_address, ns_hdr->target_address); + ip6_addr_assign_zone(&target_address, IP6_UNICAST, inp); + + /* Check a subset of the other RFC 4861 Sec. 7.1.1 requirements. */ + if (IP6H_HOPLIM(ip6_current_header()) != ND6_HOPLIM || ns_hdr->code != 0 || + ip6_addr_ismulticast(&target_address)) { + pbuf_free(p); + ND6_STATS_INC(nd6.proterr); + ND6_STATS_INC(nd6.drop); + return; + } + + /* @todo RFC MUST: all included options have a length greater than zero */ + /* @todo RFC MUST: if IP source is 'any', destination is solicited-node multicast address */ + /* @todo RFC MUST: if IP source is 'any', there is no source LL address option */ + + /* Check if there is a link-layer address provided. Only point to it if in this buffer. */ + if (p->len >= (sizeof(struct ns_header) + 2)) { + lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct ns_header)); + if (p->len < (sizeof(struct ns_header) + (lladdr_opt->length << 3))) { + lladdr_opt = NULL; + } + } else { + lladdr_opt = NULL; + } + + /* Check if the target address is configured on the receiving netif. */ + accepted = 0; + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; ++i) { + if ((ip6_addr_isvalid(netif_ip6_addr_state(inp, i)) || + (ip6_addr_istentative(netif_ip6_addr_state(inp, i)) && + ip6_addr_isany(ip6_current_src_addr()))) && + ip6_addr_eq(&target_address, netif_ip6_addr(inp, i))) { + accepted = 1; + break; + } + } + + /* NS not for us? */ + if (!accepted) { + pbuf_free(p); + return; + } + + /* Check for ANY address in src (DAD algorithm). */ + if (ip6_addr_isany(ip6_current_src_addr())) { + /* Sender is validating this address. */ + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; ++i) { + if (!ip6_addr_isinvalid(netif_ip6_addr_state(inp, i)) && + ip6_addr_eq(&target_address, netif_ip6_addr(inp, i))) { + /* Send a NA back so that the sender does not use this address. */ + nd6_send_na(inp, netif_ip6_addr(inp, i), ND6_FLAG_OVERRIDE | ND6_SEND_FLAG_ALLNODES_DEST); + if (ip6_addr_istentative(netif_ip6_addr_state(inp, i))) { + /* We shouldn't use this address either. */ + nd6_duplicate_addr_detected(inp, i); + } + } + } + } else { + /* Sender is trying to resolve our address. */ + /* Verify that they included their own link-layer address. */ + if (lladdr_opt == NULL) { + /* Not a valid message. */ + pbuf_free(p); + ND6_STATS_INC(nd6.proterr); + ND6_STATS_INC(nd6.drop); + return; + } + + i = nd6_find_neighbor_cache_entry(ip6_current_src_addr()); + if (i>= 0) { + /* We already have a record for the solicitor. */ + if (neighbor_cache[i].state == ND6_INCOMPLETE) { + neighbor_cache[i].netif = inp; + MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); + + /* Delay probe in case we get confirmation of reachability from upper layer (TCP). */ + neighbor_cache[i].state = ND6_DELAY; + neighbor_cache[i].counter.delay_time = LWIP_ND6_DELAY_FIRST_PROBE_TIME / ND6_TMR_INTERVAL; + } + } else { + /* Add their IPv6 address and link-layer address to neighbor cache. + * We will need it at least to send a unicast NA message, but most + * likely we will also be communicating with this node soon. */ + i = nd6_new_neighbor_cache_entry(); + if (i < 0) { + /* We couldn't assign a cache entry for this neighbor. + * we won't be able to reply. drop it. */ + pbuf_free(p); + ND6_STATS_INC(nd6.memerr); + return; + } + neighbor_cache[i].netif = inp; + MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); + ip6_addr_set(&(neighbor_cache[i].next_hop_address), ip6_current_src_addr()); + + /* Receiving a message does not prove reachability: only in one direction. + * Delay probe in case we get confirmation of reachability from upper layer (TCP). */ + neighbor_cache[i].state = ND6_DELAY; + neighbor_cache[i].counter.delay_time = LWIP_ND6_DELAY_FIRST_PROBE_TIME / ND6_TMR_INTERVAL; + } + + /* Send back a NA for us. Allocate the reply pbuf. */ + nd6_send_na(inp, &target_address, ND6_FLAG_SOLICITED | ND6_FLAG_OVERRIDE); + } + + break; /* ICMP6_TYPE_NS */ + } + case ICMP6_TYPE_RA: /* Router Advertisement. */ + { + struct ra_header *ra_hdr; + u8_t *buffer; /* Used to copy options. */ + u16_t offset; +#if LWIP_ND6_RDNSS_MAX_DNS_SERVERS + /* There can be multiple RDNSS options per RA */ + u8_t rdnss_server_idx = 0; +#endif /* LWIP_ND6_RDNSS_MAX_DNS_SERVERS */ + + /* Check that RA header fits in packet. */ + if (p->len < sizeof(struct ra_header)) { + /* @todo debug message */ + pbuf_free(p); + ND6_STATS_INC(nd6.lenerr); + ND6_STATS_INC(nd6.drop); + return; + } + + ra_hdr = (struct ra_header *)p->payload; + + /* Check a subset of the other RFC 4861 Sec. 6.1.2 requirements. */ + if (!ip6_addr_islinklocal(ip6_current_src_addr()) || + IP6H_HOPLIM(ip6_current_header()) != ND6_HOPLIM || ra_hdr->code != 0) { + pbuf_free(p); + ND6_STATS_INC(nd6.proterr); + ND6_STATS_INC(nd6.drop); + return; + } + + /* @todo RFC MUST: all included options have a length greater than zero */ + + /* If we are sending RS messages, stop. */ +#if LWIP_IPV6_SEND_ROUTER_SOLICIT + /* ensure at least one solicitation is sent (see RFC 4861, ch. 6.3.7) */ + if ((inp->rs_count < LWIP_ND6_MAX_MULTICAST_SOLICIT) || + (nd6_send_rs(inp) == ERR_OK)) { + inp->rs_count = 0; + } else { + inp->rs_count = 1; + } +#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ + + /* Get the matching default router entry. */ + i = nd6_get_router(ip6_current_src_addr(), inp); + if (i < 0) { + /* Create a new router entry. */ + i = nd6_new_router(ip6_current_src_addr(), inp); + } + + if (i < 0) { + /* Could not create a new router entry. */ + pbuf_free(p); + ND6_STATS_INC(nd6.memerr); + return; + } + + /* Re-set invalidation timer. */ + default_router_list[i].invalidation_timer = lwip_htons(ra_hdr->router_lifetime); + + /* Re-set default timer values. */ +#if LWIP_ND6_ALLOW_RA_UPDATES + if (ra_hdr->retrans_timer > 0) { + retrans_timer = lwip_htonl(ra_hdr->retrans_timer); + } + if (ra_hdr->reachable_time > 0) { + reachable_time = lwip_htonl(ra_hdr->reachable_time); + } +#endif /* LWIP_ND6_ALLOW_RA_UPDATES */ + + /* @todo set default hop limit... */ + /* ra_hdr->current_hop_limit;*/ + + /* Update flags in local entry (incl. preference). */ + default_router_list[i].flags = ra_hdr->flags; + +#if LWIP_IPV6_DHCP6 + /* Trigger DHCPv6 if enabled */ + dhcp6_nd6_ra_trigger(inp, ra_hdr->flags & ND6_RA_FLAG_MANAGED_ADDR_CONFIG, + ra_hdr->flags & ND6_RA_FLAG_OTHER_CONFIG); +#endif + + /* Offset to options. */ + offset = sizeof(struct ra_header); + + /* Process each option. */ + while ((p->tot_len - offset) >= 2) { + u8_t option_type; + u16_t option_len; + int option_len8 = pbuf_try_get_at(p, offset + 1); + if (option_len8 <= 0) { + /* read beyond end or zero length */ + goto lenerr_drop_free_return; + } + option_len = ((u8_t)option_len8) << 3; + if (option_len > p->tot_len - offset) { + /* short packet (option does not fit in) */ + goto lenerr_drop_free_return; + } + if (p->len == p->tot_len) { + /* no need to copy from contiguous pbuf */ + buffer = &((u8_t*)p->payload)[offset]; + } else { + /* check if this option fits into our buffer */ + if (option_len > sizeof(nd6_ra_buffer)) { + option_type = pbuf_get_at(p, offset); + /* invalid option length */ + if (option_type != ND6_OPTION_TYPE_RDNSS) { + goto lenerr_drop_free_return; + } + /* we allow RDNSS option to be longer - we'll just drop some servers */ + option_len = sizeof(nd6_ra_buffer); + } + buffer = (u8_t*)&nd6_ra_buffer; + option_len = pbuf_copy_partial(p, &nd6_ra_buffer, option_len, offset); + } + option_type = buffer[0]; + switch (option_type) { + case ND6_OPTION_TYPE_SOURCE_LLADDR: + { + struct lladdr_option *lladdr_opt; + if (option_len < sizeof(struct lladdr_option)) { + goto lenerr_drop_free_return; + } + lladdr_opt = (struct lladdr_option *)buffer; + if ((default_router_list[i].neighbor_entry != NULL) && + (default_router_list[i].neighbor_entry->state == ND6_INCOMPLETE)) { + SMEMCPY(default_router_list[i].neighbor_entry->lladdr, lladdr_opt->addr, inp->hwaddr_len); + default_router_list[i].neighbor_entry->state = ND6_REACHABLE; + default_router_list[i].neighbor_entry->counter.reachable_time = reachable_time; + } + break; + } + case ND6_OPTION_TYPE_MTU: + { + struct mtu_option *mtu_opt; + u32_t mtu32; + if (option_len < sizeof(struct mtu_option)) { + goto lenerr_drop_free_return; + } + mtu_opt = (struct mtu_option *)buffer; + mtu32 = lwip_htonl(mtu_opt->mtu); + if ((mtu32 >= IP6_MIN_MTU_LENGTH) && (mtu32 <= 0xffff)) { +#if LWIP_ND6_ALLOW_RA_UPDATES + if (inp->mtu) { + /* don't set the mtu for IPv6 higher than the netif driver supports */ + inp->mtu6 = LWIP_MIN(LWIP_MIN(inp->mtu, inp->mtu6), (u16_t)mtu32); + } else { + inp->mtu6 = (u16_t)mtu32; + } +#endif /* LWIP_ND6_ALLOW_RA_UPDATES */ + } + break; + } + case ND6_OPTION_TYPE_PREFIX_INFO: + { + struct prefix_option *prefix_opt; + ip6_addr_t prefix_addr; + if (option_len < sizeof(struct prefix_option)) { + goto lenerr_drop_free_return; + } + + prefix_opt = (struct prefix_option *)buffer; + + /* Get a memory-aligned copy of the prefix. */ + ip6_addr_copy_from_packed(prefix_addr, prefix_opt->prefix); + ip6_addr_assign_zone(&prefix_addr, IP6_UNICAST, inp); + + if (!ip6_addr_islinklocal(&prefix_addr)) { + if ((prefix_opt->flags & ND6_PREFIX_FLAG_ON_LINK) && + (prefix_opt->prefix_length == 64)) { + /* Add to on-link prefix list. */ + u32_t valid_life; + s8_t prefix; + + valid_life = lwip_htonl(prefix_opt->valid_lifetime); + + /* find cache entry for this prefix. */ + prefix = nd6_get_onlink_prefix(&prefix_addr, inp); + if (prefix < 0 && valid_life > 0) { + /* Create a new cache entry. */ + prefix = nd6_new_onlink_prefix(&prefix_addr, inp); + } + if (prefix >= 0) { + prefix_list[prefix].invalidation_timer = valid_life; + } + } +#if LWIP_IPV6_AUTOCONFIG + if (prefix_opt->flags & ND6_PREFIX_FLAG_AUTONOMOUS) { + /* Perform processing for autoconfiguration. */ + nd6_process_autoconfig_prefix(inp, prefix_opt, &prefix_addr); + } +#endif /* LWIP_IPV6_AUTOCONFIG */ + } + + break; + } + case ND6_OPTION_TYPE_ROUTE_INFO: + /* @todo implement preferred routes. + struct route_option * route_opt; + route_opt = (struct route_option *)buffer;*/ + + break; +#if LWIP_ND6_RDNSS_MAX_DNS_SERVERS + case ND6_OPTION_TYPE_RDNSS: + { + u8_t num, n; + u16_t copy_offset = offset + SIZEOF_RDNSS_OPTION_BASE; + struct rdnss_option * rdnss_opt; + if (option_len < SIZEOF_RDNSS_OPTION_BASE) { + goto lenerr_drop_free_return; + } + + rdnss_opt = (struct rdnss_option *)buffer; + num = (rdnss_opt->length - 1) / 2; + for (n = 0; (rdnss_server_idx < DNS_MAX_SERVERS) && (n < num); n++, copy_offset += sizeof(ip6_addr_p_t)) { + ip_addr_t rdnss_address; + + /* Copy directly from pbuf to get an aligned, zoned copy of the prefix. */ + if (pbuf_copy_partial(p, &rdnss_address, sizeof(ip6_addr_p_t), copy_offset) == sizeof(ip6_addr_p_t)) { + IP_SET_TYPE_VAL(rdnss_address, IPADDR_TYPE_V6); + ip6_addr_assign_zone(ip_2_ip6(&rdnss_address), IP6_UNKNOWN, inp); + + if (htonl(rdnss_opt->lifetime) > 0) { + /* TODO implement Lifetime > 0 */ + dns_setserver(rdnss_server_idx++, &rdnss_address); + } else { + /* TODO implement DNS removal in dns.c */ + u8_t s; + for (s = 0; s < DNS_MAX_SERVERS; s++) { + const ip_addr_t *addr = dns_getserver(s); + if(ip_addr_eq(addr, &rdnss_address)) { + dns_setserver(s, NULL); + } + } + } + } + } + break; + } +#endif /* LWIP_ND6_RDNSS_MAX_DNS_SERVERS */ + default: + /* Unrecognized option, abort. */ + ND6_STATS_INC(nd6.proterr); + break; + } + /* option length is checked earlier to be non-zero to make sure loop ends */ + offset += 8 * (u8_t)option_len8; + } + + break; /* ICMP6_TYPE_RA */ + } + case ICMP6_TYPE_RD: /* Redirect */ + { + struct redirect_header *redir_hdr; + struct lladdr_option *lladdr_opt; + ip6_addr_t destination_address, target_address; + + /* Check that Redir header fits in packet. */ + if (p->len < sizeof(struct redirect_header)) { + /* @todo debug message */ + pbuf_free(p); + ND6_STATS_INC(nd6.lenerr); + ND6_STATS_INC(nd6.drop); + return; + } + + redir_hdr = (struct redirect_header *)p->payload; + + /* Create an aligned, zoned copy of the destination address. */ + ip6_addr_copy_from_packed(destination_address, redir_hdr->destination_address); + ip6_addr_assign_zone(&destination_address, IP6_UNICAST, inp); + + /* Check a subset of the other RFC 4861 Sec. 8.1 requirements. */ + if (!ip6_addr_islinklocal(ip6_current_src_addr()) || + IP6H_HOPLIM(ip6_current_header()) != ND6_HOPLIM || + redir_hdr->code != 0 || ip6_addr_ismulticast(&destination_address)) { + pbuf_free(p); + ND6_STATS_INC(nd6.proterr); + ND6_STATS_INC(nd6.drop); + return; + } + + /* @todo RFC MUST: IP source address equals first-hop router for destination_address */ + /* @todo RFC MUST: ICMP target address is either link-local address or same as destination_address */ + /* @todo RFC MUST: all included options have a length greater than zero */ + + if (p->len >= (sizeof(struct redirect_header) + 2)) { + lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct redirect_header)); + if (p->len < (sizeof(struct redirect_header) + (lladdr_opt->length << 3))) { + lladdr_opt = NULL; + } + } else { + lladdr_opt = NULL; + } + + /* Find dest address in cache */ + dest_idx = nd6_find_destination_cache_entry(&destination_address); + if (dest_idx < 0) { + /* Destination not in cache, drop packet. */ + pbuf_free(p); + return; + } + + /* Create an aligned, zoned copy of the target address. */ + ip6_addr_copy_from_packed(target_address, redir_hdr->target_address); + ip6_addr_assign_zone(&target_address, IP6_UNICAST, inp); + + /* Set the new target address. */ + ip6_addr_copy(destination_cache[dest_idx].next_hop_addr, target_address); + + /* If Link-layer address of other router is given, try to add to neighbor cache. */ + if (lladdr_opt != NULL) { + if (lladdr_opt->type == ND6_OPTION_TYPE_TARGET_LLADDR) { + i = nd6_find_neighbor_cache_entry(&target_address); + if (i < 0) { + i = nd6_new_neighbor_cache_entry(); + if (i >= 0) { + neighbor_cache[i].netif = inp; + MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); + ip6_addr_copy(neighbor_cache[i].next_hop_address, target_address); + + /* Receiving a message does not prove reachability: only in one direction. + * Delay probe in case we get confirmation of reachability from upper layer (TCP). */ + neighbor_cache[i].state = ND6_DELAY; + neighbor_cache[i].counter.delay_time = LWIP_ND6_DELAY_FIRST_PROBE_TIME / ND6_TMR_INTERVAL; + } + } + if (i >= 0) { + if (neighbor_cache[i].state == ND6_INCOMPLETE) { + MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); + /* Receiving a message does not prove reachability: only in one direction. + * Delay probe in case we get confirmation of reachability from upper layer (TCP). */ + neighbor_cache[i].state = ND6_DELAY; + neighbor_cache[i].counter.delay_time = LWIP_ND6_DELAY_FIRST_PROBE_TIME / ND6_TMR_INTERVAL; + } + } + } + } + break; /* ICMP6_TYPE_RD */ + } + case ICMP6_TYPE_PTB: /* Packet too big */ + { + struct icmp6_hdr *icmp6hdr; /* Packet too big message */ + struct ip6_hdr *ip6hdr; /* IPv6 header of the packet which caused the error */ + u32_t pmtu; + ip6_addr_t destination_address; + + /* Check that ICMPv6 header + IPv6 header fit in payload */ + if (p->len < (sizeof(struct icmp6_hdr) + IP6_HLEN)) { + /* drop short packets */ + pbuf_free(p); + ND6_STATS_INC(nd6.lenerr); + ND6_STATS_INC(nd6.drop); + return; + } + + icmp6hdr = (struct icmp6_hdr *)p->payload; + ip6hdr = (struct ip6_hdr *)((u8_t*)p->payload + sizeof(struct icmp6_hdr)); + + /* Create an aligned, zoned copy of the destination address. */ + ip6_addr_copy_from_packed(destination_address, ip6hdr->dest); + ip6_addr_assign_zone(&destination_address, IP6_UNKNOWN, inp); + + /* Look for entry in destination cache. */ + dest_idx = nd6_find_destination_cache_entry(&destination_address); + if (dest_idx < 0) { + /* Destination not in cache, drop packet. */ + pbuf_free(p); + return; + } + + /* Change the Path MTU. */ + pmtu = lwip_htonl(icmp6hdr->data); + destination_cache[dest_idx].pmtu = (u16_t)LWIP_MIN(pmtu, 0xFFFF); + + break; /* ICMP6_TYPE_PTB */ + } + + default: + ND6_STATS_INC(nd6.proterr); + ND6_STATS_INC(nd6.drop); + break; /* default */ + } + + pbuf_free(p); + return; +lenerr_drop_free_return: + ND6_STATS_INC(nd6.lenerr); + ND6_STATS_INC(nd6.drop); + pbuf_free(p); +} + + +/** + * Periodic timer for Neighbor discovery functions: + * + * - Update neighbor reachability states + * - Update destination cache entries age + * - Update invalidation timers of default routers and on-link prefixes + * - Update lifetimes of our addresses + * - Perform duplicate address detection (DAD) for our addresses + * - Send router solicitations + */ +void +nd6_tmr(void) +{ + s8_t i; + struct netif *netif; + + /* Process neighbor entries. */ + for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { + switch (neighbor_cache[i].state) { + case ND6_INCOMPLETE: + if ((neighbor_cache[i].counter.probes_sent >= LWIP_ND6_MAX_MULTICAST_SOLICIT) && + (!neighbor_cache[i].isrouter)) { + /* Retries exceeded. */ + nd6_free_neighbor_cache_entry(i); + } else { + /* Send a NS for this entry. */ + neighbor_cache[i].counter.probes_sent++; + nd6_send_neighbor_cache_probe(&neighbor_cache[i], ND6_SEND_FLAG_MULTICAST_DEST); + } + break; + case ND6_REACHABLE: + /* Send queued packets, if any are left. Should have been sent already. */ + if (neighbor_cache[i].q != NULL) { + nd6_send_q(i); + } + if (neighbor_cache[i].counter.reachable_time <= ND6_TMR_INTERVAL) { + /* Change to stale state. */ + neighbor_cache[i].state = ND6_STALE; + neighbor_cache[i].counter.stale_time = 0; + } else { + neighbor_cache[i].counter.reachable_time -= ND6_TMR_INTERVAL; + } + break; + case ND6_STALE: + neighbor_cache[i].counter.stale_time++; + break; + case ND6_DELAY: + if (neighbor_cache[i].counter.delay_time <= 1) { + /* Change to PROBE state. */ + neighbor_cache[i].state = ND6_PROBE; + neighbor_cache[i].counter.probes_sent = 0; + } else { + neighbor_cache[i].counter.delay_time--; + } + break; + case ND6_PROBE: + if ((neighbor_cache[i].counter.probes_sent >= LWIP_ND6_MAX_MULTICAST_SOLICIT) && + (!neighbor_cache[i].isrouter)) { + /* Retries exceeded. */ + nd6_free_neighbor_cache_entry(i); + } else { + /* Send a NS for this entry. */ + neighbor_cache[i].counter.probes_sent++; + nd6_send_neighbor_cache_probe(&neighbor_cache[i], 0); + } + break; + case ND6_NO_ENTRY: + default: + /* Do nothing. */ + break; + } + } + + /* Process destination entries. */ + for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) { + destination_cache[i].age++; + } + + /* Process router entries. */ + for (i = 0; i < LWIP_ND6_NUM_ROUTERS; i++) { + if (default_router_list[i].neighbor_entry != NULL) { + /* Active entry. */ + if (default_router_list[i].invalidation_timer <= ND6_TMR_INTERVAL / 1000) { + /* No more than 1 second remaining. Clear this entry. Also clear any of + * its destination cache entries, as per RFC 4861 Sec. 5.3 and 6.3.5. */ + s8_t j; + for (j = 0; j < LWIP_ND6_NUM_DESTINATIONS; j++) { + if (ip6_addr_eq(&destination_cache[j].next_hop_addr, + &default_router_list[i].neighbor_entry->next_hop_address)) { + ip6_addr_set_any(&destination_cache[j].destination_addr); + } + } + default_router_list[i].neighbor_entry->isrouter = 0; + default_router_list[i].neighbor_entry = NULL; + default_router_list[i].invalidation_timer = 0; + default_router_list[i].flags = 0; + } else { + default_router_list[i].invalidation_timer -= ND6_TMR_INTERVAL / 1000; + } + } + } + + /* Process prefix entries. */ + for (i = 0; i < LWIP_ND6_NUM_PREFIXES; i++) { + if (prefix_list[i].netif != NULL) { + if (prefix_list[i].invalidation_timer <= ND6_TMR_INTERVAL / 1000) { + /* Entry timed out, remove it */ + prefix_list[i].invalidation_timer = 0; + prefix_list[i].netif = NULL; + } else { + prefix_list[i].invalidation_timer -= ND6_TMR_INTERVAL / 1000; + } + } + } + + /* Process our own addresses, updating address lifetimes and/or DAD state. */ + NETIF_FOREACH(netif) { + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; ++i) { + u8_t addr_state; +#if LWIP_IPV6_ADDRESS_LIFETIMES + /* Step 1: update address lifetimes (valid and preferred). */ + addr_state = netif_ip6_addr_state(netif, i); + /* RFC 4862 is not entirely clear as to whether address lifetimes affect + * tentative addresses, and is even less clear as to what should happen + * with duplicate addresses. We choose to track and update lifetimes for + * both those types, although for different reasons: + * - for tentative addresses, the line of thought of Sec. 5.7 combined + * with the potentially long period that an address may be in tentative + * state (due to the interface being down) suggests that lifetimes + * should be independent of external factors which would include DAD; + * - for duplicate addresses, retiring them early could result in a new + * but unwanted attempt at marking them as valid, while retiring them + * late/never could clog up address slots on the netif. + * As a result, we may end up expiring addresses of either type here. + */ + if (!ip6_addr_isinvalid(addr_state) && + !netif_ip6_addr_isstatic(netif, i)) { + u32_t life = netif_ip6_addr_valid_life(netif, i); + if (life <= ND6_TMR_INTERVAL / 1000) { + /* The address has expired. */ + netif_ip6_addr_set_valid_life(netif, i, 0); + netif_ip6_addr_set_pref_life(netif, i, 0); + netif_ip6_addr_set_state(netif, i, IP6_ADDR_INVALID); + } else { + if (!ip6_addr_life_isinfinite(life)) { + life -= ND6_TMR_INTERVAL / 1000; + LWIP_ASSERT("bad valid lifetime", life != IP6_ADDR_LIFE_STATIC); + netif_ip6_addr_set_valid_life(netif, i, life); + } + /* The address is still here. Update the preferred lifetime too. */ + life = netif_ip6_addr_pref_life(netif, i); + if (life <= ND6_TMR_INTERVAL / 1000) { + /* This case must also trigger if 'life' was already zero, so as to + * deal correctly with advertised preferred-lifetime reductions. */ + netif_ip6_addr_set_pref_life(netif, i, 0); + if (addr_state == IP6_ADDR_PREFERRED) + netif_ip6_addr_set_state(netif, i, IP6_ADDR_DEPRECATED); + } else if (!ip6_addr_life_isinfinite(life)) { + life -= ND6_TMR_INTERVAL / 1000; + netif_ip6_addr_set_pref_life(netif, i, life); + } + } + } + /* The address state may now have changed, so reobtain it next. */ +#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */ + /* Step 2: update DAD state. */ + addr_state = netif_ip6_addr_state(netif, i); + if (ip6_addr_istentative(addr_state)) { + if ((addr_state & IP6_ADDR_TENTATIVE_COUNT_MASK) >= LWIP_IPV6_DUP_DETECT_ATTEMPTS) { + /* No NA received in response. Mark address as valid. For dynamic + * addresses with an expired preferred lifetime, the state is set to + * deprecated right away. That should almost never happen, though. */ + addr_state = IP6_ADDR_PREFERRED; +#if LWIP_IPV6_ADDRESS_LIFETIMES + if (!netif_ip6_addr_isstatic(netif, i) && + netif_ip6_addr_pref_life(netif, i) == 0) { + addr_state = IP6_ADDR_DEPRECATED; + } +#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */ + netif_ip6_addr_set_state(netif, i, addr_state); + } else if (netif_is_up(netif) && netif_is_link_up(netif)) { + /* tentative: set next state by increasing by one */ + netif_ip6_addr_set_state(netif, i, addr_state + 1); + /* Send a NS for this address. Use the unspecified address as source + * address in all cases (RFC 4862 Sec. 5.4.2), not in the least + * because as it is, we only consider multicast replies for DAD. */ + nd6_send_ns(netif, netif_ip6_addr(netif, i), + ND6_SEND_FLAG_MULTICAST_DEST | ND6_SEND_FLAG_ANY_SRC); + } + } + } + } + +#if LWIP_IPV6_SEND_ROUTER_SOLICIT + /* Send router solicitation messages, if necessary. */ + if (!nd6_tmr_rs_reduction) { + nd6_tmr_rs_reduction = (ND6_RTR_SOLICITATION_INTERVAL / ND6_TMR_INTERVAL) - 1; + NETIF_FOREACH(netif) { + if ((netif->rs_count > 0) && netif_is_up(netif) && + netif_is_link_up(netif) && + !ip6_addr_isinvalid(netif_ip6_addr_state(netif, 0)) && + !ip6_addr_isduplicated(netif_ip6_addr_state(netif, 0))) { + if (nd6_send_rs(netif) == ERR_OK) { + netif->rs_count--; + } + } + } + } else { + nd6_tmr_rs_reduction--; + } +#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ + +} + +/** Send a neighbor solicitation message for a specific neighbor cache entry + * + * @param entry the neightbor cache entry for which to send the message + * @param flags one of ND6_SEND_FLAG_* + */ +static void +nd6_send_neighbor_cache_probe(struct nd6_neighbor_cache_entry *entry, u8_t flags) +{ + nd6_send_ns(entry->netif, &entry->next_hop_address, flags); +} + +/** + * Send a neighbor solicitation message + * + * @param netif the netif on which to send the message + * @param target_addr the IPv6 target address for the ND message + * @param flags one of ND6_SEND_FLAG_* + */ +static void +nd6_send_ns(struct netif *netif, const ip6_addr_t *target_addr, u8_t flags) +{ + struct ns_header *ns_hdr; + struct pbuf *p; + const ip6_addr_t *src_addr = NULL; + u16_t lladdr_opt_len; + + LWIP_ASSERT("target address is required", target_addr != NULL); + + if (!(flags & ND6_SEND_FLAG_ANY_SRC)) { + int i; + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && + ip6_addr_net_eq(target_addr, netif_ip6_addr(netif, i))) { + src_addr = netif_ip6_addr(netif, i); + break; + } + } + + if (i == LWIP_IPV6_NUM_ADDRESSES) { + LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_WARNING, ("ICMPv6 NS: no available src address\n")); + ND6_STATS_INC(nd6.err); + return; + } + + /* calculate option length (in 8-byte-blocks) */ + lladdr_opt_len = ((netif->hwaddr_len + 2) + 7) >> 3; + } else { + src_addr = IP6_ADDR_ANY6; + /* Option "MUST NOT be included when the source IP address is the unspecified address." */ + lladdr_opt_len = 0; + } + + /* Allocate a packet. */ + p = pbuf_alloc(PBUF_IP, sizeof(struct ns_header) + (lladdr_opt_len << 3), PBUF_RAM); + if (p == NULL) { + ND6_STATS_INC(nd6.memerr); + return; + } + + /* Set fields. */ + ns_hdr = (struct ns_header *)p->payload; + + ns_hdr->type = ICMP6_TYPE_NS; + ns_hdr->code = 0; + ns_hdr->chksum = 0; + ns_hdr->reserved = 0; + ip6_addr_copy_to_packed(ns_hdr->target_address, *target_addr); + + if (lladdr_opt_len != 0) { + struct lladdr_option *lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct ns_header)); + lladdr_opt->type = ND6_OPTION_TYPE_SOURCE_LLADDR; + lladdr_opt->length = (u8_t)lladdr_opt_len; + SMEMCPY(lladdr_opt->addr, netif->hwaddr, netif->hwaddr_len); + } + + /* Generate the solicited node address for the target address. */ + if (flags & ND6_SEND_FLAG_MULTICAST_DEST) { + ip6_addr_set_solicitednode(&multicast_address, target_addr->addr[3]); + ip6_addr_assign_zone(&multicast_address, IP6_MULTICAST, netif); + target_addr = &multicast_address; + } + +#if CHECKSUM_GEN_ICMP6 + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP6) { + ns_hdr->chksum = ip6_chksum_pseudo(p, IP6_NEXTH_ICMP6, p->len, src_addr, + target_addr); + } +#endif /* CHECKSUM_GEN_ICMP6 */ + + /* Send the packet out. */ + ND6_STATS_INC(nd6.xmit); + ip6_output_if(p, (src_addr == IP6_ADDR_ANY6) ? NULL : src_addr, target_addr, + ND6_HOPLIM, 0, IP6_NEXTH_ICMP6, netif); + pbuf_free(p); +} + +/** + * Send a neighbor advertisement message + * + * @param netif the netif on which to send the message + * @param target_addr the IPv6 target address for the ND message + * @param flags one of ND6_SEND_FLAG_* + */ +static void +nd6_send_na(struct netif *netif, const ip6_addr_t *target_addr, u8_t flags) +{ + struct na_header *na_hdr; + struct lladdr_option *lladdr_opt; + struct pbuf *p; + const ip6_addr_t *src_addr; + const ip6_addr_t *dest_addr; + u16_t lladdr_opt_len; + + LWIP_ASSERT("target address is required", target_addr != NULL); + + /* Use link-local address as source address. */ + /* src_addr = netif_ip6_addr(netif, 0); */ + /* Use target address as source address. */ + src_addr = target_addr; + + /* Allocate a packet. */ + lladdr_opt_len = ((netif->hwaddr_len + 2) >> 3) + (((netif->hwaddr_len + 2) & 0x07) ? 1 : 0); + p = pbuf_alloc(PBUF_IP, sizeof(struct na_header) + (lladdr_opt_len << 3), PBUF_RAM); + if (p == NULL) { + ND6_STATS_INC(nd6.memerr); + return; + } + + /* Set fields. */ + na_hdr = (struct na_header *)p->payload; + lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct na_header)); + + na_hdr->type = ICMP6_TYPE_NA; + na_hdr->code = 0; + na_hdr->chksum = 0; + na_hdr->flags = flags & 0xf0; + na_hdr->reserved[0] = 0; + na_hdr->reserved[1] = 0; + na_hdr->reserved[2] = 0; + ip6_addr_copy_to_packed(na_hdr->target_address, *target_addr); + + lladdr_opt->type = ND6_OPTION_TYPE_TARGET_LLADDR; + lladdr_opt->length = (u8_t)lladdr_opt_len; + SMEMCPY(lladdr_opt->addr, netif->hwaddr, netif->hwaddr_len); + + /* Generate the solicited node address for the target address. */ + if (flags & ND6_SEND_FLAG_MULTICAST_DEST) { + ip6_addr_set_solicitednode(&multicast_address, target_addr->addr[3]); + ip6_addr_assign_zone(&multicast_address, IP6_MULTICAST, netif); + dest_addr = &multicast_address; + } else if (flags & ND6_SEND_FLAG_ALLNODES_DEST) { + ip6_addr_set_allnodes_linklocal(&multicast_address); + ip6_addr_assign_zone(&multicast_address, IP6_MULTICAST, netif); + dest_addr = &multicast_address; + } else { + dest_addr = ip6_current_src_addr(); + } + +#if CHECKSUM_GEN_ICMP6 + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP6) { + na_hdr->chksum = ip6_chksum_pseudo(p, IP6_NEXTH_ICMP6, p->len, src_addr, + dest_addr); + } +#endif /* CHECKSUM_GEN_ICMP6 */ + + /* Send the packet out. */ + ND6_STATS_INC(nd6.xmit); + ip6_output_if(p, src_addr, dest_addr, + ND6_HOPLIM, 0, IP6_NEXTH_ICMP6, netif); + pbuf_free(p); +} + +#if LWIP_IPV6_SEND_ROUTER_SOLICIT +/** + * Send a router solicitation message + * + * @param netif the netif on which to send the message + */ +static err_t +nd6_send_rs(struct netif *netif) +{ + struct rs_header *rs_hdr; + struct lladdr_option *lladdr_opt; + struct pbuf *p; + const ip6_addr_t *src_addr; + err_t err; + u16_t lladdr_opt_len = 0; + + /* Link-local source address, or unspecified address? */ + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, 0))) { + src_addr = netif_ip6_addr(netif, 0); + } else { + src_addr = IP6_ADDR_ANY6; + } + + /* Generate the all routers target address. */ + ip6_addr_set_allrouters_linklocal(&multicast_address); + ip6_addr_assign_zone(&multicast_address, IP6_MULTICAST, netif); + + /* Allocate a packet. */ + if (src_addr != IP6_ADDR_ANY6) { + lladdr_opt_len = ((netif->hwaddr_len + 2) >> 3) + (((netif->hwaddr_len + 2) & 0x07) ? 1 : 0); + } + p = pbuf_alloc(PBUF_IP, sizeof(struct rs_header) + (lladdr_opt_len << 3), PBUF_RAM); + if (p == NULL) { + ND6_STATS_INC(nd6.memerr); + return ERR_BUF; + } + + /* Set fields. */ + rs_hdr = (struct rs_header *)p->payload; + + rs_hdr->type = ICMP6_TYPE_RS; + rs_hdr->code = 0; + rs_hdr->chksum = 0; + rs_hdr->reserved = 0; + + if (src_addr != IP6_ADDR_ANY6) { + /* Include our hw address. */ + lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct rs_header)); + lladdr_opt->type = ND6_OPTION_TYPE_SOURCE_LLADDR; + lladdr_opt->length = (u8_t)lladdr_opt_len; + SMEMCPY(lladdr_opt->addr, netif->hwaddr, netif->hwaddr_len); + } + +#if CHECKSUM_GEN_ICMP6 + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP6) { + rs_hdr->chksum = ip6_chksum_pseudo(p, IP6_NEXTH_ICMP6, p->len, src_addr, + &multicast_address); + } +#endif /* CHECKSUM_GEN_ICMP6 */ + + /* Send the packet out. */ + ND6_STATS_INC(nd6.xmit); + + err = ip6_output_if(p, (src_addr == IP6_ADDR_ANY6) ? NULL : src_addr, &multicast_address, + ND6_HOPLIM, 0, IP6_NEXTH_ICMP6, netif); + pbuf_free(p); + + return err; +} +#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ + +/** + * Search for a neighbor cache entry + * + * @param ip6addr the IPv6 address of the neighbor + * @return The neighbor cache entry index that matched, -1 if no + * entry is found + */ +static s8_t +nd6_find_neighbor_cache_entry(const ip6_addr_t *ip6addr) +{ + s8_t i; + for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { + if (ip6_addr_eq(ip6addr, &(neighbor_cache[i].next_hop_address))) { + return i; + } + } + return -1; +} + +/** + * Create a new neighbor cache entry. + * + * If no unused entry is found, will try to recycle an old entry + * according to ad-hoc "age" heuristic. + * + * @return The neighbor cache entry index that was created, -1 if no + * entry could be created + */ +static s8_t +nd6_new_neighbor_cache_entry(void) +{ + s8_t i; + s8_t j; + u32_t time; + + + /* First, try to find an empty entry. */ + for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { + if (neighbor_cache[i].state == ND6_NO_ENTRY) { + return i; + } + } + + /* We need to recycle an entry. in general, do not recycle if it is a router. */ + + /* Next, try to find a Stale entry. */ + for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { + if ((neighbor_cache[i].state == ND6_STALE) && + (!neighbor_cache[i].isrouter)) { + nd6_free_neighbor_cache_entry(i); + return i; + } + } + + /* Next, try to find a Probe entry. */ + for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { + if ((neighbor_cache[i].state == ND6_PROBE) && + (!neighbor_cache[i].isrouter)) { + nd6_free_neighbor_cache_entry(i); + return i; + } + } + + /* Next, try to find a Delayed entry. */ + for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { + if ((neighbor_cache[i].state == ND6_DELAY) && + (!neighbor_cache[i].isrouter)) { + nd6_free_neighbor_cache_entry(i); + return i; + } + } + + /* Next, try to find the oldest reachable entry. */ + time = 0xfffffffful; + j = -1; + for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { + if ((neighbor_cache[i].state == ND6_REACHABLE) && + (!neighbor_cache[i].isrouter)) { + if (neighbor_cache[i].counter.reachable_time < time) { + j = i; + time = neighbor_cache[i].counter.reachable_time; + } + } + } + if (j >= 0) { + nd6_free_neighbor_cache_entry(j); + return j; + } + + /* Next, find oldest incomplete entry without queued packets. */ + time = 0; + j = -1; + for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { + if ( + (neighbor_cache[i].q == NULL) && + (neighbor_cache[i].state == ND6_INCOMPLETE) && + (!neighbor_cache[i].isrouter)) { + if (neighbor_cache[i].counter.probes_sent >= time) { + j = i; + time = neighbor_cache[i].counter.probes_sent; + } + } + } + if (j >= 0) { + nd6_free_neighbor_cache_entry(j); + return j; + } + + /* Next, find oldest incomplete entry with queued packets. */ + time = 0; + j = -1; + for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { + if ((neighbor_cache[i].state == ND6_INCOMPLETE) && + (!neighbor_cache[i].isrouter)) { + if (neighbor_cache[i].counter.probes_sent >= time) { + j = i; + time = neighbor_cache[i].counter.probes_sent; + } + } + } + if (j >= 0) { + nd6_free_neighbor_cache_entry(j); + return j; + } + + /* No more entries to try. */ + return -1; +} + +/** + * Will free any resources associated with a neighbor cache + * entry, and will mark it as unused. + * + * @param i the neighbor cache entry index to free + */ +static void +nd6_free_neighbor_cache_entry(s8_t i) +{ + if ((i < 0) || (i >= LWIP_ND6_NUM_NEIGHBORS)) { + return; + } + if (neighbor_cache[i].isrouter) { + /* isrouter needs to be cleared before deleting a neighbor cache entry */ + return; + } + + /* Free any queued packets. */ + if (neighbor_cache[i].q != NULL) { + nd6_free_q(neighbor_cache[i].q); + neighbor_cache[i].q = NULL; + } + + neighbor_cache[i].state = ND6_NO_ENTRY; + neighbor_cache[i].isrouter = 0; + neighbor_cache[i].netif = NULL; + neighbor_cache[i].counter.reachable_time = 0; + ip6_addr_set_zero(&(neighbor_cache[i].next_hop_address)); +} + +/** + * Search for a destination cache entry + * + * @param ip6addr the IPv6 address of the destination + * @return The destination cache entry index that matched, -1 if no + * entry is found + */ +static s16_t +nd6_find_destination_cache_entry(const ip6_addr_t *ip6addr) +{ + s16_t i; + + IP6_ADDR_ZONECHECK(ip6addr); + + for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) { + if (ip6_addr_eq(ip6addr, &(destination_cache[i].destination_addr))) { + return i; + } + } + return -1; +} + +/** + * Create a new destination cache entry. If no unused entry is found, + * will recycle oldest entry. + * + * @return The destination cache entry index that was created, -1 if no + * entry was created + */ +static s16_t +nd6_new_destination_cache_entry(void) +{ + s16_t i, j; + u32_t age; + + /* Find an empty entry. */ + for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) { + if (ip6_addr_isany(&(destination_cache[i].destination_addr))) { + return i; + } + } + + /* Find oldest entry. */ + age = 0; + j = LWIP_ND6_NUM_DESTINATIONS - 1; + for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) { + if (destination_cache[i].age > age) { + j = i; + } + } + + return j; +} + +/** + * Clear the destination cache. + * + * This operation may be necessary for consistency in the light of changing + * local addresses and/or use of the gateway hook. + */ +void +nd6_clear_destination_cache(void) +{ + int i; + + for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) { + ip6_addr_set_any(&destination_cache[i].destination_addr); + } +} + +/** + * Determine whether an address matches an on-link prefix or the subnet of a + * statically assigned address. + * + * @param ip6addr the IPv6 address to match + * @return 1 if the address is on-link, 0 otherwise + */ +static int +nd6_is_prefix_in_netif(const ip6_addr_t *ip6addr, struct netif *netif) +{ + s8_t i; + + /* Check to see if the address matches an on-link prefix. */ + for (i = 0; i < LWIP_ND6_NUM_PREFIXES; i++) { + if ((prefix_list[i].netif == netif) && + (prefix_list[i].invalidation_timer > 0) && + ip6_addr_net_eq(ip6addr, &(prefix_list[i].prefix))) { + return 1; + } + } + /* Check to see if address prefix matches a manually configured (= static) + * address. Static addresses have an implied /64 subnet assignment. Dynamic + * addresses (from autoconfiguration) have no implied subnet assignment, and + * are thus effectively /128 assignments. See RFC 5942 for more on this. */ + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && + netif_ip6_addr_isstatic(netif, i) && + ip6_addr_net_eq(ip6addr, netif_ip6_addr(netif, i))) { + return 1; + } + } + return 0; +} + +/** + * Select a default router for a destination. + * + * This function is used both for routing and for finding a next-hop target for + * a packet. In the former case, the given netif is NULL, and the returned + * router entry must be for a netif suitable for sending packets (up, link up). + * In the latter case, the given netif is not NULL and restricts router choice. + * + * @param ip6addr the destination address + * @param netif the netif for the outgoing packet, if known + * @return the default router entry index, or -1 if no suitable + * router is found + */ +static s8_t +nd6_select_router(const ip6_addr_t *ip6addr, struct netif *netif) +{ + struct netif *router_netif; + s8_t i, j, valid_router; + static s8_t last_router; + + LWIP_UNUSED_ARG(ip6addr); /* @todo match preferred routes!! (must implement ND6_OPTION_TYPE_ROUTE_INFO) */ + + /* @todo: implement default router preference */ + + /* Look for valid routers. A reachable router is preferred. */ + valid_router = -1; + for (i = 0; i < LWIP_ND6_NUM_ROUTERS; i++) { + /* Is the router netif both set and apppropriate? */ + if (default_router_list[i].neighbor_entry != NULL) { + router_netif = default_router_list[i].neighbor_entry->netif; + if ((router_netif != NULL) && (netif != NULL ? netif == router_netif : + (netif_is_up(router_netif) && netif_is_link_up(router_netif)))) { + /* Is the router valid, i.e., reachable or probably reachable as per + * RFC 4861 Sec. 6.3.6? Note that we will never return a router that + * has no neighbor cache entry, due to the netif association tests. */ + if (default_router_list[i].neighbor_entry->state != ND6_INCOMPLETE) { + /* Is the router known to be reachable? */ + if (default_router_list[i].neighbor_entry->state == ND6_REACHABLE) { + return i; /* valid and reachable - done! */ + } else if (valid_router < 0) { + valid_router = i; /* valid but not known to be reachable */ + } + } + } + } + } + if (valid_router >= 0) { + return valid_router; + } + + /* Look for any router for which we have any information at all. */ + /* last_router is used for round-robin selection of incomplete routers, as + * recommended in RFC 4861 Sec. 6.3.6 point (2). Advance only when picking a + * route, to select the same router as next-hop target in the common case. */ + if ((netif == NULL) && (++last_router >= LWIP_ND6_NUM_ROUTERS)) { + last_router = 0; + } + i = last_router; + for (j = 0; j < LWIP_ND6_NUM_ROUTERS; j++) { + if (default_router_list[i].neighbor_entry != NULL) { + router_netif = default_router_list[i].neighbor_entry->netif; + if ((router_netif != NULL) && (netif != NULL ? netif == router_netif : + (netif_is_up(router_netif) && netif_is_link_up(router_netif)))) { + return i; + } + } + if (++i >= LWIP_ND6_NUM_ROUTERS) { + i = 0; + } + } + + /* no suitable router found. */ + return -1; +} + +/** + * Find a router-announced route to the given destination. This route may be + * based on an on-link prefix or a default router. + * + * If a suitable route is found, the returned netif is guaranteed to be in a + * suitable state (up, link up) to be used for packet transmission. + * + * @param ip6addr the destination IPv6 address + * @return the netif to use for the destination, or NULL if none found + */ +struct netif * +nd6_find_route(const ip6_addr_t *ip6addr) +{ + struct netif *netif; + s8_t i; + + /* @todo decide if it makes sense to check the destination cache first */ + + /* Check if there is a matching on-link prefix. There may be multiple + * matches. Pick the first one that is associated with a suitable netif. */ + for (i = 0; i < LWIP_ND6_NUM_PREFIXES; ++i) { + netif = prefix_list[i].netif; + if ((netif != NULL) && ip6_addr_net_eq(&prefix_list[i].prefix, ip6addr) && + netif_is_up(netif) && netif_is_link_up(netif)) { + return netif; + } + } + + /* No on-link prefix match. Find a router that can forward the packet. */ + i = nd6_select_router(ip6addr, NULL); + if (i >= 0) { + LWIP_ASSERT("selected router must have a neighbor entry", + default_router_list[i].neighbor_entry != NULL); + return default_router_list[i].neighbor_entry->netif; + } + + return NULL; +} + +/** + * Find an entry for a default router. + * + * @param router_addr the IPv6 address of the router + * @param netif the netif on which the router is found, if known + * @return the index of the router entry, or -1 if not found + */ +static s8_t +nd6_get_router(const ip6_addr_t *router_addr, struct netif *netif) +{ + s8_t i; + + IP6_ADDR_ZONECHECK_NETIF(router_addr, netif); + + /* Look for router. */ + for (i = 0; i < LWIP_ND6_NUM_ROUTERS; i++) { + if ((default_router_list[i].neighbor_entry != NULL) && + ((netif != NULL) ? netif == default_router_list[i].neighbor_entry->netif : 1) && + ip6_addr_eq(router_addr, &(default_router_list[i].neighbor_entry->next_hop_address))) { + return i; + } + } + + /* router not found. */ + return -1; +} + +/** + * Create a new entry for a default router. + * + * @param router_addr the IPv6 address of the router + * @param netif the netif on which the router is connected, if known + * @return the index on the router table, or -1 if could not be created + */ +static s8_t +nd6_new_router(const ip6_addr_t *router_addr, struct netif *netif) +{ + s8_t router_index; + s8_t free_router_index; + s8_t neighbor_index; + + IP6_ADDR_ZONECHECK_NETIF(router_addr, netif); + + /* Do we have a neighbor entry for this router? */ + neighbor_index = nd6_find_neighbor_cache_entry(router_addr); + if (neighbor_index < 0) { + /* Create a neighbor entry for this router. */ + neighbor_index = nd6_new_neighbor_cache_entry(); + if (neighbor_index < 0) { + /* Could not create neighbor entry for this router. */ + return -1; + } + ip6_addr_set(&(neighbor_cache[neighbor_index].next_hop_address), router_addr); + neighbor_cache[neighbor_index].netif = netif; + neighbor_cache[neighbor_index].q = NULL; + neighbor_cache[neighbor_index].state = ND6_INCOMPLETE; + neighbor_cache[neighbor_index].counter.probes_sent = 1; + nd6_send_neighbor_cache_probe(&neighbor_cache[neighbor_index], ND6_SEND_FLAG_MULTICAST_DEST); + } + + /* Mark neighbor as router. */ + neighbor_cache[neighbor_index].isrouter = 1; + + /* Look for empty entry. */ + free_router_index = LWIP_ND6_NUM_ROUTERS; + for (router_index = LWIP_ND6_NUM_ROUTERS - 1; router_index >= 0; router_index--) { + /* check if router already exists (this is a special case for 2 netifs on the same subnet + - e.g. wifi and cable) */ + if(default_router_list[router_index].neighbor_entry == &(neighbor_cache[neighbor_index])){ + return router_index; + } + if (default_router_list[router_index].neighbor_entry == NULL) { + /* remember lowest free index to create a new entry */ + free_router_index = router_index; + } + } + if (free_router_index < LWIP_ND6_NUM_ROUTERS) { + default_router_list[free_router_index].neighbor_entry = &(neighbor_cache[neighbor_index]); + return free_router_index; + } + + /* Could not create a router entry. */ + + /* Mark neighbor entry as not-router. Entry might be useful as neighbor still. */ + neighbor_cache[neighbor_index].isrouter = 0; + + /* router not found. */ + return -1; +} + +/** + * Find the cached entry for an on-link prefix. + * + * @param prefix the IPv6 prefix that is on-link + * @param netif the netif on which the prefix is on-link + * @return the index on the prefix table, or -1 if not found + */ +static s8_t +nd6_get_onlink_prefix(const ip6_addr_t *prefix, struct netif *netif) +{ + s8_t i; + + /* Look for prefix in list. */ + for (i = 0; i < LWIP_ND6_NUM_PREFIXES; ++i) { + if ((ip6_addr_net_eq(&(prefix_list[i].prefix), prefix)) && + (prefix_list[i].netif == netif)) { + return i; + } + } + + /* Entry not available. */ + return -1; +} + +/** + * Creates a new entry for an on-link prefix. + * + * @param prefix the IPv6 prefix that is on-link + * @param netif the netif on which the prefix is on-link + * @return the index on the prefix table, or -1 if not created + */ +static s8_t +nd6_new_onlink_prefix(const ip6_addr_t *prefix, struct netif *netif) +{ + s8_t i; + + /* Create new entry. */ + for (i = 0; i < LWIP_ND6_NUM_PREFIXES; ++i) { + if ((prefix_list[i].netif == NULL) || + (prefix_list[i].invalidation_timer == 0)) { + /* Found empty prefix entry. */ + prefix_list[i].netif = netif; + ip6_addr_set(&(prefix_list[i].prefix), prefix); + return i; + } + } + + /* Entry not available. */ + return -1; +} + +/** + * Determine the next hop for a destination. Will determine if the + * destination is on-link, else a suitable on-link router is selected. + * + * The last entry index is cached for fast entry search. + * + * @param ip6addr the destination address + * @param netif the netif on which the packet will be sent + * @return the neighbor cache entry for the next hop, ERR_RTE if no + * suitable next hop was found, ERR_MEM if no cache entry + * could be created + */ +static s8_t +nd6_get_next_hop_entry(const ip6_addr_t *ip6addr, struct netif *netif) +{ +#ifdef LWIP_HOOK_ND6_GET_GW + const ip6_addr_t *next_hop_addr; +#endif /* LWIP_HOOK_ND6_GET_GW */ + s8_t i; + s16_t dst_idx; + struct nd6_destination_cache_entry *dest; + + IP6_ADDR_ZONECHECK_NETIF(ip6addr, netif); + +#if LWIP_NETIF_HWADDRHINT + if (netif->hints != NULL) { + /* per-pcb cached entry was given */ + netif_addr_idx_t addr_hint = netif->hints->addr_hint; + if (addr_hint < LWIP_ND6_NUM_DESTINATIONS) { + nd6_cached_destination_index = addr_hint; + } + } +#endif /* LWIP_NETIF_HWADDRHINT */ + + LWIP_ASSERT("sane cache index", nd6_cached_destination_index < LWIP_ND6_NUM_DESTINATIONS); + + /* Look for ip6addr in destination cache. */ + dest = &destination_cache[nd6_cached_destination_index]; + if (ip6_addr_eq(ip6addr, &dest->destination_addr)) { + /* the cached entry index is the right one! */ + /* do nothing. */ + ND6_STATS_INC(nd6.cachehit); + } else { + /* Search destination cache. */ + dst_idx = nd6_find_destination_cache_entry(ip6addr); + if (dst_idx >= 0) { + /* found destination entry. make it our new cached index. */ + LWIP_ASSERT("type overflow", (size_t)dst_idx < NETIF_ADDR_IDX_MAX); + nd6_cached_destination_index = (netif_addr_idx_t)dst_idx; + dest = &destination_cache[dst_idx]; + } else { + /* Not found. Create a new destination entry. */ + dst_idx = nd6_new_destination_cache_entry(); + if (dst_idx >= 0) { + /* got new destination entry. make it our new cached index. */ + LWIP_ASSERT("type overflow", (size_t)dst_idx < NETIF_ADDR_IDX_MAX); + nd6_cached_destination_index = (netif_addr_idx_t)dst_idx; + dest = &destination_cache[dst_idx]; + } else { + /* Could not create a destination cache entry. */ + return ERR_MEM; + } + + /* Copy dest address to destination cache. */ + ip6_addr_set(&dest->destination_addr, ip6addr); + + /* Now find the next hop. is it a neighbor? */ + if (ip6_addr_islinklocal(ip6addr) || + nd6_is_prefix_in_netif(ip6addr, netif)) { + /* Destination in local link. */ + dest->pmtu = netif_mtu6(netif); + ip6_addr_copy(dest->next_hop_addr, dest->destination_addr); +#ifdef LWIP_HOOK_ND6_GET_GW + } else if ((next_hop_addr = LWIP_HOOK_ND6_GET_GW(netif, ip6addr)) != NULL) { + /* Next hop for destination provided by hook function. */ + dest->pmtu = netif->mtu; + ip6_addr_set(&dest->next_hop_addr, next_hop_addr); +#endif /* LWIP_HOOK_ND6_GET_GW */ + } else { + /* We need to select a router. */ + i = nd6_select_router(ip6addr, netif); + if (i < 0) { + /* No router found. */ + ip6_addr_set_any(&dest->destination_addr); + return ERR_RTE; + } + dest->pmtu = netif_mtu6(netif); /* Start with netif mtu, correct through ICMPv6 if necessary */ + ip6_addr_copy(dest->next_hop_addr, default_router_list[i].neighbor_entry->next_hop_address); + } + } +#if LWIP_NETIF_HWADDRHINT + if (netif->hints != NULL) { + /* per-pcb cached entry was given */ + netif->hints->addr_hint = nd6_cached_destination_index; + } +#endif /* LWIP_NETIF_HWADDRHINT */ + } + + /* Look in neighbor cache for the next-hop address. */ + if (ip6_addr_eq(&dest->next_hop_addr, + &(neighbor_cache[dest->cached_neighbor_idx].next_hop_address))) { + /* Cache hit. */ + /* Do nothing. */ + ND6_STATS_INC(nd6.cachehit); + } else { + i = nd6_find_neighbor_cache_entry(&dest->next_hop_addr); + if (i >= 0) { + /* Found a matching record, make it new cached entry. */ + dest->cached_neighbor_idx = i; + } else { + /* Neighbor not in cache. Make a new entry. */ + i = nd6_new_neighbor_cache_entry(); + if (i >= 0) { + /* got new neighbor entry. make it our new cached index. */ + dest->cached_neighbor_idx = i; + } else { + /* Could not create a neighbor cache entry. */ + return ERR_MEM; + } + + /* Initialize fields. */ + ip6_addr_copy(neighbor_cache[i].next_hop_address, dest->next_hop_addr); + neighbor_cache[i].isrouter = 0; + neighbor_cache[i].netif = netif; + neighbor_cache[i].state = ND6_INCOMPLETE; + neighbor_cache[i].counter.probes_sent = 1; + nd6_send_neighbor_cache_probe(&neighbor_cache[i], ND6_SEND_FLAG_MULTICAST_DEST); + } + } + + /* Reset this destination's age. */ + dest->age = 0; + + return dest->cached_neighbor_idx; +} + +/** + * Queue a packet for a neighbor. + * + * @param neighbor_index the index in the neighbor cache table + * @param q packet to be queued + * @return ERR_OK if succeeded, ERR_MEM if out of memory + */ +static err_t +nd6_queue_packet(s8_t neighbor_index, struct pbuf *q) +{ + err_t result = ERR_MEM; + struct pbuf *p; + int copy_needed = 0; +#if LWIP_ND6_QUEUEING + struct nd6_q_entry *new_entry, *r; +#endif /* LWIP_ND6_QUEUEING */ + + if ((neighbor_index < 0) || (neighbor_index >= LWIP_ND6_NUM_NEIGHBORS)) { + return ERR_ARG; + } + + /* IF q includes a pbuf that must be copied, we have to copy the whole chain + * into a new PBUF_RAM. See the definition of PBUF_NEEDS_COPY for details. */ + p = q; + while (p) { + if (PBUF_NEEDS_COPY(p)) { + copy_needed = 1; + break; + } + p = p->next; + } + if (copy_needed) { + /* copy the whole packet into new pbufs */ + p = pbuf_clone(PBUF_LINK, PBUF_RAM, q); + while ((p == NULL) && (neighbor_cache[neighbor_index].q != NULL)) { + /* Free oldest packet (as per RFC recommendation) */ +#if LWIP_ND6_QUEUEING + r = neighbor_cache[neighbor_index].q; + neighbor_cache[neighbor_index].q = r->next; + r->next = NULL; + nd6_free_q(r); +#else /* LWIP_ND6_QUEUEING */ + pbuf_free(neighbor_cache[neighbor_index].q); + neighbor_cache[neighbor_index].q = NULL; +#endif /* LWIP_ND6_QUEUEING */ + p = pbuf_clone(PBUF_LINK, PBUF_RAM, q); + } + } else { + /* referencing the old pbuf is enough */ + p = q; + pbuf_ref(p); + } + /* packet was copied/ref'd? */ + if (p != NULL) { + /* queue packet ... */ +#if LWIP_ND6_QUEUEING + /* allocate a new nd6 queue entry */ + new_entry = NULL; + if (nd6_queue_size < MEMP_NUM_ND6_QUEUE) { + new_entry = (struct nd6_q_entry *)memp_malloc(MEMP_ND6_QUEUE); + nd6_queue_size++; + } + if ((new_entry == NULL) && (neighbor_cache[neighbor_index].q != NULL)) { + /* Free oldest packet (as per RFC recommendation) */ + r = neighbor_cache[neighbor_index].q; + neighbor_cache[neighbor_index].q = r->next; + r->next = NULL; + nd6_free_q(r); + new_entry = (struct nd6_q_entry *)memp_malloc(MEMP_ND6_QUEUE); + nd6_queue_size++; + } + if (new_entry != NULL) { + new_entry->next = NULL; + new_entry->p = p; + if (neighbor_cache[neighbor_index].q != NULL) { + /* queue was already existent, append the new entry to the end */ + r = neighbor_cache[neighbor_index].q; + while (r->next != NULL) { + r = r->next; + } + r->next = new_entry; + } else { + /* queue did not exist, first item in queue */ + neighbor_cache[neighbor_index].q = new_entry; + } + LWIP_DEBUGF(LWIP_DBG_TRACE, ("ipv6: queued packet %p on neighbor entry %"S16_F"\n", (void *)p, (s16_t)neighbor_index)); + result = ERR_OK; + } else { + /* the pool MEMP_ND6_QUEUE is empty */ + pbuf_free(p); + LWIP_DEBUGF(LWIP_DBG_TRACE, ("ipv6: could not queue a copy of packet %p (out of memory)\n", (void *)p)); + /* { result == ERR_MEM } through initialization */ + } +#else /* LWIP_ND6_QUEUEING */ + /* Queue a single packet. If an older packet is already queued, free it as per RFC. */ + if (neighbor_cache[neighbor_index].q != NULL) { + pbuf_free(neighbor_cache[neighbor_index].q); + } + neighbor_cache[neighbor_index].q = p; + LWIP_DEBUGF(LWIP_DBG_TRACE, ("ipv6: queued packet %p on neighbor entry %"S16_F"\n", (void *)p, (s16_t)neighbor_index)); + result = ERR_OK; +#endif /* LWIP_ND6_QUEUEING */ + } else { + LWIP_DEBUGF(LWIP_DBG_TRACE, ("ipv6: could not queue a copy of packet %p (out of memory)\n", (void *)q)); + /* { result == ERR_MEM } through initialization */ + } + + return result; +} + +#if LWIP_ND6_QUEUEING +/** + * Free a complete queue of nd6 q entries + * + * @param q a queue of nd6_q_entry to free + */ +static void +nd6_free_q(struct nd6_q_entry *q) +{ + struct nd6_q_entry *r; + LWIP_ASSERT("q != NULL", q != NULL); + LWIP_ASSERT("q->p != NULL", q->p != NULL); + while (q) { + r = q; + q = q->next; + LWIP_ASSERT("r->p != NULL", (r->p != NULL)); + pbuf_free(r->p); + memp_free(MEMP_ND6_QUEUE, r); + nd6_queue_size--; + } +} +#endif /* LWIP_ND6_QUEUEING */ + +/** + * Send queued packets for a neighbor + * + * @param i the neighbor to send packets to + */ +static void +nd6_send_q(s8_t i) +{ + struct ip6_hdr *ip6hdr; + ip6_addr_t dest; +#if LWIP_ND6_QUEUEING + struct nd6_q_entry *q; +#endif /* LWIP_ND6_QUEUEING */ + + if ((i < 0) || (i >= LWIP_ND6_NUM_NEIGHBORS)) { + return; + } + +#if LWIP_ND6_QUEUEING + while (neighbor_cache[i].q != NULL) { + /* remember first in queue */ + q = neighbor_cache[i].q; + /* pop first item off the queue */ + neighbor_cache[i].q = q->next; + /* Get ipv6 header. */ + ip6hdr = (struct ip6_hdr *)(q->p->payload); + /* Create an aligned copy. */ + ip6_addr_copy_from_packed(dest, ip6hdr->dest); + /* Restore the zone, if applicable. */ + ip6_addr_assign_zone(&dest, IP6_UNKNOWN, neighbor_cache[i].netif); + /* send the queued IPv6 packet */ + (neighbor_cache[i].netif)->output_ip6(neighbor_cache[i].netif, q->p, &dest); + /* free the queued IP packet */ + pbuf_free(q->p); + /* now queue entry can be freed */ + memp_free(MEMP_ND6_QUEUE, q); + nd6_queue_size--; + } +#else /* LWIP_ND6_QUEUEING */ + if (neighbor_cache[i].q != NULL) { + /* Get ipv6 header. */ + ip6hdr = (struct ip6_hdr *)(neighbor_cache[i].q->payload); + /* Create an aligned copy. */ + ip6_addr_copy_from_packed(dest, ip6hdr->dest); + /* Restore the zone, if applicable. */ + ip6_addr_assign_zone(&dest, IP6_UNKNOWN, neighbor_cache[i].netif); + /* send the queued IPv6 packet */ + (neighbor_cache[i].netif)->output_ip6(neighbor_cache[i].netif, neighbor_cache[i].q, &dest); + /* free the queued IP packet */ + pbuf_free(neighbor_cache[i].q); + neighbor_cache[i].q = NULL; + } +#endif /* LWIP_ND6_QUEUEING */ +} + +/** + * A packet is to be transmitted to a specific IPv6 destination on a specific + * interface. Check if we can find the hardware address of the next hop to use + * for the packet. If so, give the hardware address to the caller, which should + * use it to send the packet right away. Otherwise, enqueue the packet for + * later transmission while looking up the hardware address, if possible. + * + * As such, this function returns one of three different possible results: + * + * - ERR_OK with a non-NULL 'hwaddrp': the caller should send the packet now. + * - ERR_OK with a NULL 'hwaddrp': the packet has been enqueued for later. + * - not ERR_OK: something went wrong; forward the error upward in the stack. + * + * @param netif The lwIP network interface on which the IP packet will be sent. + * @param q The pbuf(s) containing the IP packet to be sent. + * @param ip6addr The destination IPv6 address of the packet. + * @param hwaddrp On success, filled with a pointer to a HW address or NULL (meaning + * the packet has been queued). + * @return + * - ERR_OK on success, ERR_RTE if no route was found for the packet, + * or ERR_MEM if low memory conditions prohibit sending the packet at all. + */ +err_t +nd6_get_next_hop_addr_or_queue(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr, const u8_t **hwaddrp) +{ + s8_t i; + + /* Get next hop record. */ + i = nd6_get_next_hop_entry(ip6addr, netif); + if (i < 0) { + /* failed to get a next hop neighbor record. */ + return i; + } + + /* Now that we have a destination record, send or queue the packet. */ + if (neighbor_cache[i].state == ND6_STALE) { + /* Switch to delay state. */ + neighbor_cache[i].state = ND6_DELAY; + neighbor_cache[i].counter.delay_time = LWIP_ND6_DELAY_FIRST_PROBE_TIME / ND6_TMR_INTERVAL; + } + /* @todo should we send or queue if PROBE? send for now, to let unicast NS pass. */ + if ((neighbor_cache[i].state == ND6_REACHABLE) || + (neighbor_cache[i].state == ND6_DELAY) || + (neighbor_cache[i].state == ND6_PROBE)) { + + /* Tell the caller to send out the packet now. */ + *hwaddrp = neighbor_cache[i].lladdr; + return ERR_OK; + } + + /* We should queue packet on this interface. */ + *hwaddrp = NULL; + return nd6_queue_packet(i, q); +} + + +/** + * Get the Path MTU for a destination. + * + * @param ip6addr the destination address + * @param netif the netif on which the packet will be sent + * @return the Path MTU, if known, or the netif default MTU + */ +u16_t +nd6_get_destination_mtu(const ip6_addr_t *ip6addr, struct netif *netif) +{ + s16_t i; + + i = nd6_find_destination_cache_entry(ip6addr); + if (i >= 0) { + if (destination_cache[i].pmtu > 0) { + return destination_cache[i].pmtu; + } + } + + if (netif != NULL) { + return netif_mtu6(netif); + } + + return IP6_MIN_MTU_LENGTH; /* Minimum MTU */ +} + + +#if LWIP_ND6_TCP_REACHABILITY_HINTS +/** + * Provide the Neighbor discovery process with a hint that a + * destination is reachable. Called by tcp_receive when ACKs are + * received or sent (as per RFC). This is useful to avoid sending + * NS messages every 30 seconds. + * + * @param ip6addr the destination address which is know to be reachable + * by an upper layer protocol (TCP) + */ +void +nd6_reachability_hint(const ip6_addr_t *ip6addr) +{ + s8_t i; + s16_t dst_idx; + struct nd6_destination_cache_entry *dest; + + /* Find destination in cache. */ + if (ip6_addr_eq(ip6addr, &(destination_cache[nd6_cached_destination_index].destination_addr))) { + dst_idx = nd6_cached_destination_index; + ND6_STATS_INC(nd6.cachehit); + } else { + dst_idx = nd6_find_destination_cache_entry(ip6addr); + } + if (dst_idx < 0) { + return; + } + + /* Find next hop neighbor in cache. */ + dest = &destination_cache[dst_idx]; + if (ip6_addr_eq(&dest->next_hop_addr, &(neighbor_cache[dest->cached_neighbor_idx].next_hop_address))) { + i = dest->cached_neighbor_idx; + ND6_STATS_INC(nd6.cachehit); + } else { + i = nd6_find_neighbor_cache_entry(&dest->next_hop_addr); + } + if (i < 0) { + return; + } + + /* For safety: don't set as reachable if we don't have a LL address yet. Misuse protection. */ + if (neighbor_cache[i].state == ND6_INCOMPLETE || neighbor_cache[i].state == ND6_NO_ENTRY) { + return; + } + + /* Set reachability state. */ + neighbor_cache[i].state = ND6_REACHABLE; + neighbor_cache[i].counter.reachable_time = reachable_time; +} +#endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */ + +/** + * Remove all prefix, neighbor_cache and router entries of the specified netif. + * + * @param netif points to a network interface + */ +void +nd6_cleanup_netif(struct netif *netif) +{ + u8_t i; + s8_t router_index; + for (i = 0; i < LWIP_ND6_NUM_PREFIXES; i++) { + if (prefix_list[i].netif == netif) { + prefix_list[i].netif = NULL; + } + } + for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { + if (neighbor_cache[i].netif == netif) { + for (router_index = 0; router_index < LWIP_ND6_NUM_ROUTERS; router_index++) { + if (default_router_list[router_index].neighbor_entry == &neighbor_cache[i]) { + default_router_list[router_index].neighbor_entry = NULL; + default_router_list[router_index].flags = 0; + } + } + neighbor_cache[i].isrouter = 0; + nd6_free_neighbor_cache_entry(i); + } + } + /* Clear the destination cache, since many entries may now have become + * invalid for one of several reasons. As destination cache entries have no + * netif association, use a sledgehammer approach (this can be improved). */ + nd6_clear_destination_cache(); +} + +#if LWIP_IPV6_MLD +/** + * The state of a local IPv6 address entry is about to change. If needed, join + * or leave the solicited-node multicast group for the address. + * + * @param netif The netif that owns the address. + * @param addr_idx The index of the address. + * @param new_state The new (IP6_ADDR_) state for the address. + */ +void +nd6_adjust_mld_membership(struct netif *netif, s8_t addr_idx, u8_t new_state) +{ + u8_t old_state, old_member, new_member; + + old_state = netif_ip6_addr_state(netif, addr_idx); + + /* Determine whether we were, and should be, a member of the solicited-node + * multicast group for this address. For tentative addresses, the group is + * not joined until the address enters the TENTATIVE_1 (or VALID) state. */ + old_member = (old_state != IP6_ADDR_INVALID && old_state != IP6_ADDR_DUPLICATED && old_state != IP6_ADDR_TENTATIVE); + new_member = (new_state != IP6_ADDR_INVALID && new_state != IP6_ADDR_DUPLICATED && new_state != IP6_ADDR_TENTATIVE); + + if (old_member != new_member) { + ip6_addr_set_solicitednode(&multicast_address, netif_ip6_addr(netif, addr_idx)->addr[3]); + ip6_addr_assign_zone(&multicast_address, IP6_MULTICAST, netif); + + if (new_member) { + mld6_joingroup_netif(netif, &multicast_address); + } else { + mld6_leavegroup_netif(netif, &multicast_address); + } + } +} +#endif /* LWIP_IPV6_MLD */ + +/** Netif was added, set up, or reconnected (link up) */ +void +nd6_restart_netif(struct netif *netif) +{ +#if LWIP_IPV6_SEND_ROUTER_SOLICIT + /* Send Router Solicitation messages (see RFC 4861, ch. 6.3.7). */ + netif->rs_count = LWIP_ND6_MAX_MULTICAST_SOLICIT; +#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ +} + +#endif /* LWIP_IPV6 */ diff --git a/middleware/lwip/src/core/mem.c b/middleware/lwip/src/core/mem.c new file mode 100644 index 0000000..8566edc --- /dev/null +++ b/middleware/lwip/src/core/mem.c @@ -0,0 +1,1017 @@ +/** + * @file + * Dynamic memory manager + * + * This is a lightweight replacement for the standard C library malloc(). + * + * If you want to use the standard C library malloc() instead, define + * MEM_LIBC_MALLOC to 1 in your lwipopts.h + * + * To let mem_malloc() use pools (prevents fragmentation and is much faster than + * a heap but might waste some memory), define MEM_USE_POOLS to 1, define + * MEMP_USE_CUSTOM_POOLS to 1 and create a file "lwippools.h" that includes a list + * of pools like this (more pools can be added between _START and _END): + * + * Define three pools with sizes 256, 512, and 1512 bytes + * LWIP_MALLOC_MEMPOOL_START + * LWIP_MALLOC_MEMPOOL(20, 256) + * LWIP_MALLOC_MEMPOOL(10, 512) + * LWIP_MALLOC_MEMPOOL(5, 1512) + * LWIP_MALLOC_MEMPOOL_END + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * Simon Goldschmidt + * + */ + +#include "lwip/opt.h" +#include "lwip/mem.h" +#include "lwip/def.h" +#include "lwip/sys.h" +#include "lwip/stats.h" +#include "lwip/err.h" + +#include + +#if MEM_LIBC_MALLOC +#include /* for malloc()/free() */ +#endif + +/* This is overridable for tests only... */ +#ifndef LWIP_MEM_ILLEGAL_FREE +#define LWIP_MEM_ILLEGAL_FREE(msg) LWIP_ASSERT(msg, 0) +#endif + +#define MEM_STATS_INC_LOCKED(x) SYS_ARCH_LOCKED(MEM_STATS_INC(x)) +#define MEM_STATS_INC_USED_LOCKED(x, y) SYS_ARCH_LOCKED(MEM_STATS_INC_USED(x, y)) +#define MEM_STATS_DEC_USED_LOCKED(x, y) SYS_ARCH_LOCKED(MEM_STATS_DEC_USED(x, y)) + +#if MEM_OVERFLOW_CHECK +#define MEM_SANITY_OFFSET MEM_SANITY_REGION_BEFORE_ALIGNED +#define MEM_SANITY_OVERHEAD (MEM_SANITY_REGION_BEFORE_ALIGNED + MEM_SANITY_REGION_AFTER_ALIGNED) +#else +#define MEM_SANITY_OFFSET 0 +#define MEM_SANITY_OVERHEAD 0 +#endif + +#if MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK +/** + * Check if a mep element was victim of an overflow or underflow + * (e.g. the restricted area after/before it has been altered) + * + * @param p the mem element to check + * @param size allocated size of the element + * @param descr1 description of the element source shown on error + * @param descr2 description of the element source shown on error + */ +void +mem_overflow_check_raw(void *p, size_t size, const char *descr1, const char *descr2) +{ +#if MEM_SANITY_REGION_AFTER_ALIGNED || MEM_SANITY_REGION_BEFORE_ALIGNED + u16_t k; + u8_t *m; + +#if MEM_SANITY_REGION_AFTER_ALIGNED > 0 + m = (u8_t *)p + size; + for (k = 0; k < MEM_SANITY_REGION_AFTER_ALIGNED; k++) { + if (m[k] != 0xcd) { + char errstr[128]; + snprintf(errstr, sizeof(errstr), "detected mem overflow in %s%s", descr1, descr2); + LWIP_ASSERT(errstr, 0); + } + } +#endif /* MEM_SANITY_REGION_AFTER_ALIGNED > 0 */ + +#if MEM_SANITY_REGION_BEFORE_ALIGNED > 0 + m = (u8_t *)p - MEM_SANITY_REGION_BEFORE_ALIGNED; + for (k = 0; k < MEM_SANITY_REGION_BEFORE_ALIGNED; k++) { + if (m[k] != 0xcd) { + char errstr[128]; + snprintf(errstr, sizeof(errstr), "detected mem underflow in %s%s", descr1, descr2); + LWIP_ASSERT(errstr, 0); + } + } +#endif /* MEM_SANITY_REGION_BEFORE_ALIGNED > 0 */ +#else + LWIP_UNUSED_ARG(p); + LWIP_UNUSED_ARG(desc); + LWIP_UNUSED_ARG(descr); +#endif +} + +/** + * Initialize the restricted area of a mem element. + */ +void +mem_overflow_init_raw(void *p, size_t size) +{ +#if MEM_SANITY_REGION_BEFORE_ALIGNED > 0 || MEM_SANITY_REGION_AFTER_ALIGNED > 0 + u8_t *m; +#if MEM_SANITY_REGION_BEFORE_ALIGNED > 0 + m = (u8_t *)p - MEM_SANITY_REGION_BEFORE_ALIGNED; + memset(m, 0xcd, MEM_SANITY_REGION_BEFORE_ALIGNED); +#endif +#if MEM_SANITY_REGION_AFTER_ALIGNED > 0 + m = (u8_t *)p + size; + memset(m, 0xcd, MEM_SANITY_REGION_AFTER_ALIGNED); +#endif +#else /* MEM_SANITY_REGION_BEFORE_ALIGNED > 0 || MEM_SANITY_REGION_AFTER_ALIGNED > 0 */ + LWIP_UNUSED_ARG(p); + LWIP_UNUSED_ARG(desc); +#endif /* MEM_SANITY_REGION_BEFORE_ALIGNED > 0 || MEM_SANITY_REGION_AFTER_ALIGNED > 0 */ +} +#endif /* MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK */ + +#if MEM_LIBC_MALLOC || MEM_USE_POOLS + +/** mem_init is not used when using pools instead of a heap or using + * C library malloc(). + */ +void +mem_init(void) +{ +} + +/** mem_trim is not used when using pools instead of a heap or using + * C library malloc(): we can't free part of a pool element and the stack + * support mem_trim() to return a different pointer + */ +void * +mem_trim(void *mem, mem_size_t size) +{ + LWIP_UNUSED_ARG(size); + return mem; +} +#endif /* MEM_LIBC_MALLOC || MEM_USE_POOLS */ + +#if MEM_LIBC_MALLOC +/* lwIP heap implemented using C library malloc() */ + +/* in case C library malloc() needs extra protection, + * allow these defines to be overridden. + */ +#ifndef mem_clib_free +#define mem_clib_free free +#endif +#ifndef mem_clib_malloc +#define mem_clib_malloc malloc +#endif +#ifndef mem_clib_calloc +#define mem_clib_calloc calloc +#endif + +#if LWIP_STATS && MEM_STATS +#define MEM_LIBC_STATSHELPER_SIZE LWIP_MEM_ALIGN_SIZE(sizeof(mem_size_t)) +#else +#define MEM_LIBC_STATSHELPER_SIZE 0 +#endif + +/** + * Allocate a block of memory with a minimum of 'size' bytes. + * + * @param size is the minimum size of the requested block in bytes. + * @return pointer to allocated memory or NULL if no free memory was found. + * + * Note that the returned value must always be aligned (as defined by MEM_ALIGNMENT). + */ +void * +mem_malloc(mem_size_t size) +{ + void *ret = mem_clib_malloc(size + MEM_LIBC_STATSHELPER_SIZE); + if (ret == NULL) { + MEM_STATS_INC_LOCKED(err); + } else { + LWIP_ASSERT("malloc() must return aligned memory", LWIP_MEM_ALIGN(ret) == ret); +#if LWIP_STATS && MEM_STATS + *(mem_size_t *)ret = size; + ret = (u8_t *)ret + MEM_LIBC_STATSHELPER_SIZE; + MEM_STATS_INC_USED_LOCKED(used, size); +#endif + } + return ret; +} + +/** Put memory back on the heap + * + * @param rmem is the pointer as returned by a previous call to mem_malloc() + */ +void +mem_free(void *rmem) +{ + LWIP_ASSERT("rmem != NULL", (rmem != NULL)); + LWIP_ASSERT("rmem == MEM_ALIGN(rmem)", (rmem == LWIP_MEM_ALIGN(rmem))); +#if LWIP_STATS && MEM_STATS + rmem = (u8_t *)rmem - MEM_LIBC_STATSHELPER_SIZE; + MEM_STATS_DEC_USED_LOCKED(used, *(mem_size_t *)rmem); +#endif + mem_clib_free(rmem); +} + +#elif MEM_USE_POOLS + +/* lwIP heap implemented with different sized pools */ + +/** + * Allocate memory: determine the smallest pool that is big enough + * to contain an element of 'size' and get an element from that pool. + * + * @param size the size in bytes of the memory needed + * @return a pointer to the allocated memory or NULL if the pool is empty + */ +void * +mem_malloc(mem_size_t size) +{ + void *ret; + struct memp_malloc_helper *element = NULL; + memp_t poolnr; + mem_size_t required_size = size + LWIP_MEM_ALIGN_SIZE(sizeof(struct memp_malloc_helper)); + + for (poolnr = MEMP_POOL_FIRST; poolnr <= MEMP_POOL_LAST; poolnr = (memp_t)(poolnr + 1)) { + /* is this pool big enough to hold an element of the required size + plus a struct memp_malloc_helper that saves the pool this element came from? */ + if (required_size <= memp_pools[poolnr]->size) { + element = (struct memp_malloc_helper *)memp_malloc(poolnr); + if (element == NULL) { + /* No need to DEBUGF or ASSERT: This error is already taken care of in memp.c */ +#if MEM_USE_POOLS_TRY_BIGGER_POOL + /** Try a bigger pool if this one is empty! */ + if (poolnr < MEMP_POOL_LAST) { + continue; + } +#endif /* MEM_USE_POOLS_TRY_BIGGER_POOL */ + MEM_STATS_INC_LOCKED(err); + return NULL; + } + break; + } + } + if (poolnr > MEMP_POOL_LAST) { + LWIP_ASSERT("mem_malloc(): no pool is that big!", 0); + MEM_STATS_INC_LOCKED(err); + return NULL; + } + + /* save the pool number this element came from */ + element->poolnr = poolnr; + /* and return a pointer to the memory directly after the struct memp_malloc_helper */ + ret = (u8_t *)element + LWIP_MEM_ALIGN_SIZE(sizeof(struct memp_malloc_helper)); + +#if MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS) + /* truncating to u16_t is safe because struct memp_desc::size is u16_t */ + element->size = (u16_t)size; + MEM_STATS_INC_USED_LOCKED(used, element->size); +#endif /* MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS) */ +#if MEMP_OVERFLOW_CHECK + /* initialize unused memory (diff between requested size and selected pool's size) */ + memset((u8_t *)ret + size, 0xcd, memp_pools[poolnr]->size - size); +#endif /* MEMP_OVERFLOW_CHECK */ + return ret; +} + +/** + * Free memory previously allocated by mem_malloc. Loads the pool number + * and calls memp_free with that pool number to put the element back into + * its pool + * + * @param rmem the memory element to free + */ +void +mem_free(void *rmem) +{ + struct memp_malloc_helper *hmem; + + LWIP_ASSERT("rmem != NULL", (rmem != NULL)); + LWIP_ASSERT("rmem == MEM_ALIGN(rmem)", (rmem == LWIP_MEM_ALIGN(rmem))); + + /* get the original struct memp_malloc_helper */ + /* cast through void* to get rid of alignment warnings */ + hmem = (struct memp_malloc_helper *)(void *)((u8_t *)rmem - LWIP_MEM_ALIGN_SIZE(sizeof(struct memp_malloc_helper))); + + LWIP_ASSERT("hmem != NULL", (hmem != NULL)); + LWIP_ASSERT("hmem == MEM_ALIGN(hmem)", (hmem == LWIP_MEM_ALIGN(hmem))); + LWIP_ASSERT("hmem->poolnr < MEMP_MAX", (hmem->poolnr < MEMP_MAX)); + + MEM_STATS_DEC_USED_LOCKED(used, hmem->size); +#if MEMP_OVERFLOW_CHECK + { + u16_t i; + LWIP_ASSERT("MEM_USE_POOLS: invalid chunk size", + hmem->size <= memp_pools[hmem->poolnr]->size); + /* check that unused memory remained untouched (diff between requested size and selected pool's size) */ + for (i = hmem->size; i < memp_pools[hmem->poolnr]->size; i++) { + u8_t data = *((u8_t *)rmem + i); + LWIP_ASSERT("MEM_USE_POOLS: mem overflow detected", data == 0xcd); + } + } +#endif /* MEMP_OVERFLOW_CHECK */ + + /* and put it in the pool we saved earlier */ + memp_free(hmem->poolnr, hmem); +} + +#else /* MEM_USE_POOLS */ +/* lwIP replacement for your libc malloc() */ + +/** + * The heap is made up as a list of structs of this type. + * This does not have to be aligned since for getting its size, + * we only use the macro SIZEOF_STRUCT_MEM, which automatically aligns. + */ +struct mem { + /** index (-> ram[next]) of the next struct */ + mem_size_t next; + /** index (-> ram[prev]) of the previous struct */ + mem_size_t prev; + /** 1: this area is used; 0: this area is unused */ + u8_t used; +#if MEM_OVERFLOW_CHECK + /** this keeps track of the user allocation size for guard checks */ + mem_size_t user_size; +#endif +}; + +/** All allocated blocks will be MIN_SIZE bytes big, at least! + * MIN_SIZE can be overridden to suit your needs. Smaller values save space, + * larger values could prevent too small blocks to fragment the RAM too much. */ +#ifndef MIN_SIZE +#define MIN_SIZE 12 +#endif /* MIN_SIZE */ +/* some alignment macros: we define them here for better source code layout */ +#define MIN_SIZE_ALIGNED LWIP_MEM_ALIGN_SIZE(MIN_SIZE) +#define SIZEOF_STRUCT_MEM LWIP_MEM_ALIGN_SIZE(sizeof(struct mem)) +#define MEM_SIZE_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SIZE) + +/** If you want to relocate the heap to external memory, simply define + * LWIP_RAM_HEAP_POINTER as a void-pointer to that location. + * If so, make sure the memory at that location is big enough (see below on + * how that space is calculated). */ +#ifndef LWIP_RAM_HEAP_POINTER +/** the heap. we need one struct mem at the end and some room for alignment */ +LWIP_DECLARE_MEMORY_ALIGNED(ram_heap, MEM_SIZE_ALIGNED + (2U * SIZEOF_STRUCT_MEM)); +#define LWIP_RAM_HEAP_POINTER ram_heap +#endif /* LWIP_RAM_HEAP_POINTER */ + +/** pointer to the heap (ram_heap): for alignment, ram is now a pointer instead of an array */ +static u8_t *ram; +/** the last entry, always unused! */ +static struct mem *ram_end; + +/** concurrent access protection */ +#if !NO_SYS +static sys_mutex_t mem_mutex; +#endif + +#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT + +static volatile u8_t mem_free_count; + +/* Allow mem_free from other (e.g. interrupt) context */ +#define LWIP_MEM_FREE_DECL_PROTECT() SYS_ARCH_DECL_PROTECT(lev_free) +#define LWIP_MEM_FREE_PROTECT() SYS_ARCH_PROTECT(lev_free) +#define LWIP_MEM_FREE_UNPROTECT() SYS_ARCH_UNPROTECT(lev_free) +#define LWIP_MEM_ALLOC_DECL_PROTECT() SYS_ARCH_DECL_PROTECT(lev_alloc) +#define LWIP_MEM_ALLOC_PROTECT() SYS_ARCH_PROTECT(lev_alloc) +#define LWIP_MEM_ALLOC_UNPROTECT() SYS_ARCH_UNPROTECT(lev_alloc) +#define LWIP_MEM_LFREE_VOLATILE volatile + +#else /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ + +/* Protect the heap only by using a mutex */ +#define LWIP_MEM_FREE_DECL_PROTECT() +#define LWIP_MEM_FREE_PROTECT() sys_mutex_lock(&mem_mutex) +#define LWIP_MEM_FREE_UNPROTECT() sys_mutex_unlock(&mem_mutex) +/* mem_malloc is protected using mutex AND LWIP_MEM_ALLOC_PROTECT */ +#define LWIP_MEM_ALLOC_DECL_PROTECT() +#define LWIP_MEM_ALLOC_PROTECT() +#define LWIP_MEM_ALLOC_UNPROTECT() +#define LWIP_MEM_LFREE_VOLATILE + +#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ + +/** pointer to the lowest free block, this is used for faster search */ +static struct mem * LWIP_MEM_LFREE_VOLATILE lfree; + +#if MEM_SANITY_CHECK +static void mem_sanity(void); +#define MEM_SANITY() mem_sanity() +#else +#define MEM_SANITY() +#endif + +#if MEM_OVERFLOW_CHECK +static void +mem_overflow_init_element(struct mem *mem, mem_size_t user_size) +{ + void *p = (u8_t *)mem + SIZEOF_STRUCT_MEM + MEM_SANITY_OFFSET; + mem->user_size = user_size; + mem_overflow_init_raw(p, user_size); +} + +static void +mem_overflow_check_element(struct mem *mem) +{ + void *p = (u8_t *)mem + SIZEOF_STRUCT_MEM + MEM_SANITY_OFFSET; + mem_overflow_check_raw(p, mem->user_size, "heap", ""); +} +#else /* MEM_OVERFLOW_CHECK */ +#define mem_overflow_init_element(mem, size) +#define mem_overflow_check_element(mem) +#endif /* MEM_OVERFLOW_CHECK */ + +static struct mem * +ptr_to_mem(mem_size_t ptr) +{ + return (struct mem *)(void *)&ram[ptr]; +} + +static mem_size_t +mem_to_ptr(void *mem) +{ + return (mem_size_t)((u8_t *)mem - ram); +} + +/** + * "Plug holes" by combining adjacent empty struct mems. + * After this function is through, there should not exist + * one empty struct mem pointing to another empty struct mem. + * + * @param mem this points to a struct mem which just has been freed + * @internal this function is only called by mem_free() and mem_trim() + * + * This assumes access to the heap is protected by the calling function + * already. + */ +static void +plug_holes(struct mem *mem) +{ + struct mem *nmem; + struct mem *pmem; + + LWIP_ASSERT("plug_holes: mem >= ram", (u8_t *)mem >= ram); + LWIP_ASSERT("plug_holes: mem < ram_end", (u8_t *)mem < (u8_t *)ram_end); + LWIP_ASSERT("plug_holes: mem->used == 0", mem->used == 0); + + /* plug hole forward */ + LWIP_ASSERT("plug_holes: mem->next <= MEM_SIZE_ALIGNED", mem->next <= MEM_SIZE_ALIGNED); + + nmem = ptr_to_mem(mem->next); + if (mem != nmem && nmem->used == 0 && (u8_t *)nmem != (u8_t *)ram_end) { + /* if mem->next is unused and not end of ram, combine mem and mem->next */ + if (lfree == nmem) { + lfree = mem; + } + mem->next = nmem->next; + if (nmem->next != MEM_SIZE_ALIGNED) { + ptr_to_mem(nmem->next)->prev = mem_to_ptr(mem); + } + } + + /* plug hole backward */ + pmem = ptr_to_mem(mem->prev); + if (pmem != mem && pmem->used == 0) { + /* if mem->prev is unused, combine mem and mem->prev */ + if (lfree == mem) { + lfree = pmem; + } + pmem->next = mem->next; + if (mem->next != MEM_SIZE_ALIGNED) { + ptr_to_mem(mem->next)->prev = mem_to_ptr(pmem); + } + } +} + +/** + * Zero the heap and initialize start, end and lowest-free + */ +void +mem_init(void) +{ + struct mem *mem; + + LWIP_ASSERT("Sanity check alignment", + (SIZEOF_STRUCT_MEM & (MEM_ALIGNMENT - 1)) == 0); + + /* align the heap */ + ram = (u8_t *)LWIP_MEM_ALIGN(LWIP_RAM_HEAP_POINTER); + /* initialize the start of the heap */ + mem = (struct mem *)(void *)ram; + mem->next = MEM_SIZE_ALIGNED; + mem->prev = 0; + mem->used = 0; + /* initialize the end of the heap */ + ram_end = ptr_to_mem(MEM_SIZE_ALIGNED); + ram_end->used = 1; + ram_end->next = MEM_SIZE_ALIGNED; + ram_end->prev = MEM_SIZE_ALIGNED; + MEM_SANITY(); + + /* initialize the lowest-free pointer to the start of the heap */ + lfree = (struct mem *)(void *)ram; + + MEM_STATS_AVAIL(avail, MEM_SIZE_ALIGNED); + + if (sys_mutex_new(&mem_mutex) != ERR_OK) { + LWIP_ASSERT("failed to create mem_mutex", 0); + } +} + +/* Check if a struct mem is correctly linked. + * If not, double-free is a possible reason. + */ +static int +mem_link_valid(struct mem *mem) +{ + struct mem *nmem, *pmem; + mem_size_t rmem_idx; + rmem_idx = mem_to_ptr(mem); + nmem = ptr_to_mem(mem->next); + pmem = ptr_to_mem(mem->prev); + if ((mem->next > MEM_SIZE_ALIGNED) || (mem->prev > MEM_SIZE_ALIGNED) || + ((mem->prev != rmem_idx) && (pmem->next != rmem_idx)) || + ((nmem != ram_end) && (nmem->prev != rmem_idx))) { + return 0; + } + return 1; +} + +#if MEM_SANITY_CHECK +static void +mem_sanity(void) +{ + struct mem *mem; + u8_t last_used; + + /* begin with first element here */ + mem = (struct mem *)ram; + LWIP_ASSERT("heap element used valid", (mem->used == 0) || (mem->used == 1)); + last_used = mem->used; + LWIP_ASSERT("heap element prev ptr valid", mem->prev == 0); + LWIP_ASSERT("heap element next ptr valid", mem->next <= MEM_SIZE_ALIGNED); + LWIP_ASSERT("heap element next ptr aligned", LWIP_MEM_ALIGN(ptr_to_mem(mem->next) == ptr_to_mem(mem->next))); + + /* check all elements before the end of the heap */ + for (mem = ptr_to_mem(mem->next); + ((u8_t *)mem > ram) && (mem < ram_end); + mem = ptr_to_mem(mem->next)) { + LWIP_ASSERT("heap element aligned", LWIP_MEM_ALIGN(mem) == mem); + LWIP_ASSERT("heap element prev ptr valid", mem->prev <= MEM_SIZE_ALIGNED); + LWIP_ASSERT("heap element next ptr valid", mem->next <= MEM_SIZE_ALIGNED); + LWIP_ASSERT("heap element prev ptr aligned", LWIP_MEM_ALIGN(ptr_to_mem(mem->prev) == ptr_to_mem(mem->prev))); + LWIP_ASSERT("heap element next ptr aligned", LWIP_MEM_ALIGN(ptr_to_mem(mem->next) == ptr_to_mem(mem->next))); + + if (last_used == 0) { + /* 2 unused elements in a row? */ + LWIP_ASSERT("heap element unused?", mem->used == 1); + } else { + LWIP_ASSERT("heap element unused member", (mem->used == 0) || (mem->used == 1)); + } + + LWIP_ASSERT("heap element link valid", mem_link_valid(mem)); + + /* used/unused altering */ + last_used = mem->used; + } + LWIP_ASSERT("heap end ptr sanity", mem == ptr_to_mem(MEM_SIZE_ALIGNED)); + LWIP_ASSERT("heap element used valid", mem->used == 1); + LWIP_ASSERT("heap element prev ptr valid", mem->prev == MEM_SIZE_ALIGNED); + LWIP_ASSERT("heap element next ptr valid", mem->next == MEM_SIZE_ALIGNED); +} +#endif /* MEM_SANITY_CHECK */ + +/** + * Put a struct mem back on the heap + * + * @param rmem is the data portion of a struct mem as returned by a previous + * call to mem_malloc() + */ +void +mem_free(void *rmem) +{ + struct mem *mem; + LWIP_MEM_FREE_DECL_PROTECT(); + + if (rmem == NULL) { + LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("mem_free(p == NULL) was called.\n")); + return; + } + if ((((mem_ptr_t)rmem) & (MEM_ALIGNMENT - 1)) != 0) { + LWIP_MEM_ILLEGAL_FREE("mem_free: sanity check alignment"); + LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("mem_free: sanity check alignment\n")); + /* protect mem stats from concurrent access */ + MEM_STATS_INC_LOCKED(illegal); + return; + } + + /* Get the corresponding struct mem: */ + /* cast through void* to get rid of alignment warnings */ + mem = (struct mem *)(void *)((u8_t *)rmem - (SIZEOF_STRUCT_MEM + MEM_SANITY_OFFSET)); + + if ((u8_t *)mem < ram || (u8_t *)rmem + MIN_SIZE_ALIGNED > (u8_t *)ram_end) { + LWIP_MEM_ILLEGAL_FREE("mem_free: illegal memory"); + LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("mem_free: illegal memory\n")); + /* protect mem stats from concurrent access */ + MEM_STATS_INC_LOCKED(illegal); + return; + } +#if MEM_OVERFLOW_CHECK + mem_overflow_check_element(mem); +#endif + /* protect the heap from concurrent access */ + LWIP_MEM_FREE_PROTECT(); + /* mem has to be in a used state */ + if (!mem->used) { + LWIP_MEM_ILLEGAL_FREE("mem_free: illegal memory: double free"); + LWIP_MEM_FREE_UNPROTECT(); + LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("mem_free: illegal memory: double free?\n")); + /* protect mem stats from concurrent access */ + MEM_STATS_INC_LOCKED(illegal); + return; + } + + if (!mem_link_valid(mem)) { + LWIP_MEM_ILLEGAL_FREE("mem_free: illegal memory: non-linked: double free"); + LWIP_MEM_FREE_UNPROTECT(); + LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("mem_free: illegal memory: non-linked: double free?\n")); + /* protect mem stats from concurrent access */ + MEM_STATS_INC_LOCKED(illegal); + return; + } + + /* mem is now unused. */ + mem->used = 0; + + if (mem < lfree) { + /* the newly freed struct is now the lowest */ + lfree = mem; + } + + MEM_STATS_DEC_USED(used, mem->next - (mem_size_t)(((u8_t *)mem - ram))); + + /* finally, see if prev or next are free also */ + plug_holes(mem); + MEM_SANITY(); +#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT + mem_free_count = 1; +#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ + LWIP_MEM_FREE_UNPROTECT(); +} + +/** + * Shrink memory returned by mem_malloc(). + * + * @param rmem pointer to memory allocated by mem_malloc the is to be shrunk + * @param new_size required size after shrinking (needs to be smaller than or + * equal to the previous size) + * @return for compatibility reasons: is always == rmem, at the moment + * or NULL if newsize is > old size, in which case rmem is NOT touched + * or freed! + */ +void * +mem_trim(void *rmem, mem_size_t new_size) +{ + mem_size_t size, newsize; + mem_size_t ptr, ptr2; + struct mem *mem, *mem2; + /* use the FREE_PROTECT here: it protects with sem OR SYS_ARCH_PROTECT */ + LWIP_MEM_FREE_DECL_PROTECT(); + + /* Expand the size of the allocated memory region so that we can + adjust for alignment. */ + newsize = (mem_size_t)LWIP_MEM_ALIGN_SIZE(new_size); + if (newsize < MIN_SIZE_ALIGNED) { + /* every data block must be at least MIN_SIZE_ALIGNED long */ + newsize = MIN_SIZE_ALIGNED; + } +#if MEM_OVERFLOW_CHECK + newsize += MEM_SANITY_REGION_BEFORE_ALIGNED + MEM_SANITY_REGION_AFTER_ALIGNED; +#endif + if ((newsize > MEM_SIZE_ALIGNED) || (newsize < new_size)) { + return NULL; + } + + LWIP_ASSERT("mem_trim: legal memory", (u8_t *)rmem >= (u8_t *)ram && + (u8_t *)rmem < (u8_t *)ram_end); + + if ((u8_t *)rmem < (u8_t *)ram || (u8_t *)rmem >= (u8_t *)ram_end) { + LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("mem_trim: illegal memory\n")); + /* protect mem stats from concurrent access */ + MEM_STATS_INC_LOCKED(illegal); + return rmem; + } + /* Get the corresponding struct mem ... */ + /* cast through void* to get rid of alignment warnings */ + mem = (struct mem *)(void *)((u8_t *)rmem - (SIZEOF_STRUCT_MEM + MEM_SANITY_OFFSET)); +#if MEM_OVERFLOW_CHECK + mem_overflow_check_element(mem); +#endif + /* ... and its offset pointer */ + ptr = mem_to_ptr(mem); + + size = (mem_size_t)((mem_size_t)(mem->next - ptr) - (SIZEOF_STRUCT_MEM + MEM_SANITY_OVERHEAD)); + LWIP_ASSERT("mem_trim can only shrink memory", newsize <= size); + if (newsize > size) { + /* not supported */ + return NULL; + } + if (newsize == size) { + /* No change in size, simply return */ + return rmem; + } + + /* protect the heap from concurrent access */ + LWIP_MEM_FREE_PROTECT(); + + mem2 = ptr_to_mem(mem->next); + if (mem2->used == 0) { + /* The next struct is unused, we can simply move it at little */ + mem_size_t next; + LWIP_ASSERT("invalid next ptr", mem->next != MEM_SIZE_ALIGNED); + /* remember the old next pointer */ + next = mem2->next; + /* create new struct mem which is moved directly after the shrunk mem */ + ptr2 = (mem_size_t)(ptr + SIZEOF_STRUCT_MEM + newsize); + if (lfree == mem2) { + lfree = ptr_to_mem(ptr2); + } + mem2 = ptr_to_mem(ptr2); + mem2->used = 0; + /* restore the next pointer */ + mem2->next = next; + /* link it back to mem */ + mem2->prev = ptr; + /* link mem to it */ + mem->next = ptr2; + /* last thing to restore linked list: as we have moved mem2, + * let 'mem2->next->prev' point to mem2 again. but only if mem2->next is not + * the end of the heap */ + if (mem2->next != MEM_SIZE_ALIGNED) { + ptr_to_mem(mem2->next)->prev = ptr2; + } + MEM_STATS_DEC_USED(used, (size - newsize)); + /* no need to plug holes, we've already done that */ + } else if (newsize + SIZEOF_STRUCT_MEM + MIN_SIZE_ALIGNED <= size) { + /* Next struct is used but there's room for another struct mem with + * at least MIN_SIZE_ALIGNED of data. + * Old size ('size') must be big enough to contain at least 'newsize' plus a struct mem + * ('SIZEOF_STRUCT_MEM') with some data ('MIN_SIZE_ALIGNED'). + * @todo we could leave out MIN_SIZE_ALIGNED. We would create an empty + * region that couldn't hold data, but when mem->next gets freed, + * the 2 regions would be combined, resulting in more free memory */ + ptr2 = (mem_size_t)(ptr + SIZEOF_STRUCT_MEM + newsize); + LWIP_ASSERT("invalid next ptr", mem->next != MEM_SIZE_ALIGNED); + mem2 = ptr_to_mem(ptr2); + if (mem2 < lfree) { + lfree = mem2; + } + mem2->used = 0; + mem2->next = mem->next; + mem2->prev = ptr; + mem->next = ptr2; + if (mem2->next != MEM_SIZE_ALIGNED) { + ptr_to_mem(mem2->next)->prev = ptr2; + } + MEM_STATS_DEC_USED(used, (size - newsize)); + /* the original mem->next is used, so no need to plug holes! */ + } + /* else { + next struct mem is used but size between mem and mem2 is not big enough + to create another struct mem + -> don't do anyhting. + -> the remaining space stays unused since it is too small + } */ +#if MEM_OVERFLOW_CHECK + mem_overflow_init_element(mem, new_size); +#endif + MEM_SANITY(); +#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT + mem_free_count = 1; +#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ + LWIP_MEM_FREE_UNPROTECT(); + return rmem; +} + +/** + * Allocate a block of memory with a minimum of 'size' bytes. + * + * @param size_in is the minimum size of the requested block in bytes. + * @return pointer to allocated memory or NULL if no free memory was found. + * + * Note that the returned value will always be aligned (as defined by MEM_ALIGNMENT). + */ +void * +mem_malloc(mem_size_t size_in) +{ + mem_size_t ptr, ptr2, size; + struct mem *mem, *mem2; +#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT + u8_t local_mem_free_count = 0; +#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ + LWIP_MEM_ALLOC_DECL_PROTECT(); + + if (size_in == 0) { + return NULL; + } + + /* Expand the size of the allocated memory region so that we can + adjust for alignment. */ + size = (mem_size_t)LWIP_MEM_ALIGN_SIZE(size_in); + if (size < MIN_SIZE_ALIGNED) { + /* every data block must be at least MIN_SIZE_ALIGNED long */ + size = MIN_SIZE_ALIGNED; + } +#if MEM_OVERFLOW_CHECK + size += MEM_SANITY_REGION_BEFORE_ALIGNED + MEM_SANITY_REGION_AFTER_ALIGNED; +#endif + if ((size > MEM_SIZE_ALIGNED) || (size < size_in)) { + return NULL; + } + + /* protect the heap from concurrent access */ + sys_mutex_lock(&mem_mutex); + LWIP_MEM_ALLOC_PROTECT(); +#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT + /* run as long as a mem_free disturbed mem_malloc or mem_trim */ + do { + local_mem_free_count = 0; +#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ + + /* Scan through the heap searching for a free block that is big enough, + * beginning with the lowest free block. + */ + for (ptr = mem_to_ptr(lfree); ptr < MEM_SIZE_ALIGNED - size; + ptr = ptr_to_mem(ptr)->next) { + mem = ptr_to_mem(ptr); +#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT + mem_free_count = 0; + LWIP_MEM_ALLOC_UNPROTECT(); + /* allow mem_free or mem_trim to run */ + LWIP_MEM_ALLOC_PROTECT(); + if (mem_free_count != 0) { + /* If mem_free or mem_trim have run, we have to restart since they + could have altered our current struct mem. */ + local_mem_free_count = 1; + break; + } +#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ + + if ((!mem->used) && + (mem->next - (ptr + SIZEOF_STRUCT_MEM)) >= size) { + /* mem is not used and at least perfect fit is possible: + * mem->next - (ptr + SIZEOF_STRUCT_MEM) gives us the 'user data size' of mem */ + + if (mem->next - (ptr + SIZEOF_STRUCT_MEM) >= (size + SIZEOF_STRUCT_MEM + MIN_SIZE_ALIGNED)) { + /* (in addition to the above, we test if another struct mem (SIZEOF_STRUCT_MEM) containing + * at least MIN_SIZE_ALIGNED of data also fits in the 'user data space' of 'mem') + * -> split large block, create empty remainder, + * remainder must be large enough to contain MIN_SIZE_ALIGNED data: if + * mem->next - (ptr + (2*SIZEOF_STRUCT_MEM)) == size, + * struct mem would fit in but no data between mem2 and mem2->next + * @todo we could leave out MIN_SIZE_ALIGNED. We would create an empty + * region that couldn't hold data, but when mem->next gets freed, + * the 2 regions would be combined, resulting in more free memory + */ + ptr2 = (mem_size_t)(ptr + SIZEOF_STRUCT_MEM + size); + LWIP_ASSERT("invalid next ptr",ptr2 != MEM_SIZE_ALIGNED); + /* create mem2 struct */ + mem2 = ptr_to_mem(ptr2); + mem2->used = 0; + mem2->next = mem->next; + mem2->prev = ptr; + /* and insert it between mem and mem->next */ + mem->next = ptr2; + mem->used = 1; + + if (mem2->next != MEM_SIZE_ALIGNED) { + ptr_to_mem(mem2->next)->prev = ptr2; + } + MEM_STATS_INC_USED(used, (size + SIZEOF_STRUCT_MEM)); + } else { + /* (a mem2 struct does no fit into the user data space of mem and mem->next will always + * be used at this point: if not we have 2 unused structs in a row, plug_holes should have + * take care of this). + * -> near fit or exact fit: do not split, no mem2 creation + * also can't move mem->next directly behind mem, since mem->next + * will always be used at this point! + */ + mem->used = 1; + MEM_STATS_INC_USED(used, mem->next - mem_to_ptr(mem)); + } +#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT +mem_malloc_adjust_lfree: +#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ + if (mem == lfree) { + struct mem *cur = lfree; + /* Find next free block after mem and update lowest free pointer */ + while (cur->used && cur != ram_end) { +#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT + mem_free_count = 0; + LWIP_MEM_ALLOC_UNPROTECT(); + /* prevent high interrupt latency... */ + LWIP_MEM_ALLOC_PROTECT(); + if (mem_free_count != 0) { + /* If mem_free or mem_trim have run, we have to restart since they + could have altered our current struct mem or lfree. */ + goto mem_malloc_adjust_lfree; + } +#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ + cur = ptr_to_mem(cur->next); + } + lfree = cur; + LWIP_ASSERT("mem_malloc: !lfree->used", ((lfree == ram_end) || (!lfree->used))); + } + LWIP_MEM_ALLOC_UNPROTECT(); + sys_mutex_unlock(&mem_mutex); + LWIP_ASSERT("mem_malloc: allocated memory not above ram_end.", + (mem_ptr_t)mem + SIZEOF_STRUCT_MEM + size <= (mem_ptr_t)ram_end); + LWIP_ASSERT("mem_malloc: allocated memory properly aligned.", + ((mem_ptr_t)mem + SIZEOF_STRUCT_MEM) % MEM_ALIGNMENT == 0); + LWIP_ASSERT("mem_malloc: sanity check alignment", + (((mem_ptr_t)mem) & (MEM_ALIGNMENT - 1)) == 0); + +#if MEM_OVERFLOW_CHECK + mem_overflow_init_element(mem, size_in); +#endif + MEM_SANITY(); + return (u8_t *)mem + SIZEOF_STRUCT_MEM + MEM_SANITY_OFFSET; + } + } +#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT + /* if we got interrupted by a mem_free, try again */ + } while (local_mem_free_count != 0); +#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ + MEM_STATS_INC(err); + LWIP_MEM_ALLOC_UNPROTECT(); + sys_mutex_unlock(&mem_mutex); + LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("mem_malloc: could not allocate %"S16_F" bytes\n", (s16_t)size)); + return NULL; +} + +#endif /* MEM_USE_POOLS */ + +#if MEM_LIBC_MALLOC && (!LWIP_STATS || !MEM_STATS) +void * +mem_calloc(mem_size_t count, mem_size_t size) +{ + return mem_clib_calloc(count, size); +} + +#else /* MEM_LIBC_MALLOC && (!LWIP_STATS || !MEM_STATS) */ +/** + * Contiguously allocates enough space for count objects that are size bytes + * of memory each and returns a pointer to the allocated memory. + * + * The allocated memory is filled with bytes of value zero. + * + * @param count number of objects to allocate + * @param size size of the objects to allocate + * @return pointer to allocated memory / NULL pointer if there is an error + */ +void * +mem_calloc(mem_size_t count, mem_size_t size) +{ + void *p; + size_t alloc_size = (size_t)count * (size_t)size; + + if ((size_t)(mem_size_t)alloc_size != alloc_size) { + LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("mem_calloc: could not allocate %"SZT_F" bytes\n", alloc_size)); + return NULL; + } + + /* allocate 'count' objects of size 'size' */ + p = mem_malloc((mem_size_t)alloc_size); + if (p) { + /* zero the memory */ + memset(p, 0, alloc_size); + } + return p; +} +#endif /* MEM_LIBC_MALLOC && (!LWIP_STATS || !MEM_STATS) */ diff --git a/middleware/lwip/src/core/memp.c b/middleware/lwip/src/core/memp.c new file mode 100644 index 0000000..352ce5a --- /dev/null +++ b/middleware/lwip/src/core/memp.c @@ -0,0 +1,447 @@ +/** + * @file + * Dynamic pool memory manager + * + * lwIP has dedicated pools for many structures (netconn, protocol control blocks, + * packet buffers, ...). All these pools are managed here. + * + * @defgroup mempool Memory pools + * @ingroup infrastructure + * Custom memory pools + + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#include "lwip/memp.h" +#include "lwip/sys.h" +#include "lwip/stats.h" + +#include + +/* Make sure we include everything we need for size calculation required by memp_std.h */ +#include "lwip/pbuf.h" +#include "lwip/raw.h" +#include "lwip/udp.h" +#include "lwip/tcp.h" +#include "lwip/priv/tcp_priv.h" +#include "lwip/altcp.h" +#include "lwip/ip4_frag.h" +#include "lwip/netbuf.h" +#include "lwip/api.h" +#include "lwip/priv/tcpip_priv.h" +#include "lwip/priv/api_msg.h" +#include "lwip/priv/sockets_priv.h" +#include "lwip/etharp.h" +#include "lwip/igmp.h" +#include "lwip/timeouts.h" +/* needed by default MEMP_NUM_SYS_TIMEOUT */ +#include "netif/ppp/ppp_opts.h" +#include "lwip/netdb.h" +#include "lwip/dns.h" +#include "lwip/priv/nd6_priv.h" +#include "lwip/ip6_frag.h" +#include "lwip/mld6.h" + +#define LWIP_MEMPOOL(name,num,size,desc) LWIP_MEMPOOL_DECLARE(name,num,size,desc) +#include "lwip/priv/memp_std.h" + +const struct memp_desc *const memp_pools[MEMP_MAX] = { +#define LWIP_MEMPOOL(name,num,size,desc) &memp_ ## name, +#include "lwip/priv/memp_std.h" +}; + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif + +#if MEMP_MEM_MALLOC && MEMP_OVERFLOW_CHECK >= 2 +#undef MEMP_OVERFLOW_CHECK +/* MEMP_OVERFLOW_CHECK >= 2 does not work with MEMP_MEM_MALLOC, use 1 instead */ +#define MEMP_OVERFLOW_CHECK 1 +#endif + +#if MEMP_SANITY_CHECK && !MEMP_MEM_MALLOC +/** + * Check that memp-lists don't form a circle, using "Floyd's cycle-finding algorithm". + */ +static int +memp_sanity(const struct memp_desc *desc) +{ + struct memp *t, *h; + + t = *desc->tab; + if (t != NULL) { + for (h = t->next; (t != NULL) && (h != NULL); t = t->next, + h = ((h->next != NULL) ? h->next->next : NULL)) { + if (t == h) { + return 0; + } + } + } + + return 1; +} +#endif /* MEMP_SANITY_CHECK && !MEMP_MEM_MALLOC */ + +#if MEMP_OVERFLOW_CHECK +/** + * Check if a memp element was victim of an overflow or underflow + * (e.g. the restricted area after/before it has been altered) + * + * @param p the memp element to check + * @param desc the pool p comes from + */ +static void +memp_overflow_check_element(struct memp *p, const struct memp_desc *desc) +{ + mem_overflow_check_raw((u8_t *)p + MEMP_SIZE, desc->size, "pool ", desc->desc); +} + +/** + * Initialize the restricted area of on memp element. + */ +static void +memp_overflow_init_element(struct memp *p, const struct memp_desc *desc) +{ + mem_overflow_init_raw((u8_t *)p + MEMP_SIZE, desc->size); +} + +#if MEMP_OVERFLOW_CHECK >= 2 +/** + * Do an overflow check for all elements in every pool. + * + * @see memp_overflow_check_element for a description of the check + */ +static void +memp_overflow_check_all(void) +{ + u16_t i, j; + struct memp *p; + SYS_ARCH_DECL_PROTECT(old_level); + SYS_ARCH_PROTECT(old_level); + + for (i = 0; i < MEMP_MAX; ++i) { + p = (struct memp *)LWIP_MEM_ALIGN(memp_pools[i]->base); + for (j = 0; j < memp_pools[i]->num; ++j) { + memp_overflow_check_element(p, memp_pools[i]); + p = LWIP_ALIGNMENT_CAST(struct memp *, ((u8_t *)p + MEMP_SIZE + memp_pools[i]->size + MEM_SANITY_REGION_AFTER_ALIGNED)); + } + } + SYS_ARCH_UNPROTECT(old_level); +} +#endif /* MEMP_OVERFLOW_CHECK >= 2 */ +#endif /* MEMP_OVERFLOW_CHECK */ + +/** + * Initialize custom memory pool. + * Related functions: memp_malloc_pool, memp_free_pool + * + * @param desc pool to initialize + */ +void +memp_init_pool(const struct memp_desc *desc) +{ +#if MEMP_MEM_MALLOC + LWIP_UNUSED_ARG(desc); +#else + int i; + struct memp *memp; + + *desc->tab = NULL; + memp = (struct memp *)LWIP_MEM_ALIGN(desc->base); +#if MEMP_MEM_INIT + /* force memset on pool memory */ + memset(memp, 0, (size_t)desc->num * (MEMP_SIZE + desc->size +#if MEMP_OVERFLOW_CHECK + + MEM_SANITY_REGION_AFTER_ALIGNED +#endif + )); +#endif + /* create a linked list of memp elements */ + for (i = 0; i < desc->num; ++i) { + memp->next = *desc->tab; + *desc->tab = memp; +#if MEMP_OVERFLOW_CHECK + memp_overflow_init_element(memp, desc); +#endif /* MEMP_OVERFLOW_CHECK */ + /* cast through void* to get rid of alignment warnings */ + memp = (struct memp *)(void *)((u8_t *)memp + MEMP_SIZE + desc->size +#if MEMP_OVERFLOW_CHECK + + MEM_SANITY_REGION_AFTER_ALIGNED +#endif + ); + } +#if MEMP_STATS + desc->stats->avail = desc->num; +#endif /* MEMP_STATS */ +#endif /* !MEMP_MEM_MALLOC */ + +#if MEMP_STATS && (defined(LWIP_DEBUG) || LWIP_STATS_DISPLAY) + desc->stats->name = desc->desc; +#endif /* MEMP_STATS && (defined(LWIP_DEBUG) || LWIP_STATS_DISPLAY) */ +} + +/** + * Initializes lwIP built-in pools. + * Related functions: memp_malloc, memp_free + * + * Carves out memp_memory into linked lists for each pool-type. + */ +void +memp_init(void) +{ + u16_t i; + + /* for every pool: */ + for (i = 0; i < LWIP_ARRAYSIZE(memp_pools); i++) { + memp_init_pool(memp_pools[i]); + +#if LWIP_STATS && MEMP_STATS + lwip_stats.memp[i] = memp_pools[i]->stats; +#endif + } + +#if MEMP_OVERFLOW_CHECK >= 2 + /* check everything a first time to see if it worked */ + memp_overflow_check_all(); +#endif /* MEMP_OVERFLOW_CHECK >= 2 */ +} + +static void * +#if !MEMP_OVERFLOW_CHECK +do_memp_malloc_pool(const struct memp_desc *desc) +#else +do_memp_malloc_pool_fn(const struct memp_desc *desc, const char *file, const int line) +#endif +{ + struct memp *memp; + SYS_ARCH_DECL_PROTECT(old_level); + +#if MEMP_MEM_MALLOC + memp = (struct memp *)mem_malloc(MEMP_SIZE + MEMP_ALIGN_SIZE(desc->size)); + SYS_ARCH_PROTECT(old_level); +#else /* MEMP_MEM_MALLOC */ + SYS_ARCH_PROTECT(old_level); + + memp = *desc->tab; +#endif /* MEMP_MEM_MALLOC */ + + if (memp != NULL) { +#if !MEMP_MEM_MALLOC +#if MEMP_OVERFLOW_CHECK == 1 + memp_overflow_check_element(memp, desc); +#endif /* MEMP_OVERFLOW_CHECK */ + + *desc->tab = memp->next; +#if MEMP_OVERFLOW_CHECK + memp->next = NULL; +#endif /* MEMP_OVERFLOW_CHECK */ +#endif /* !MEMP_MEM_MALLOC */ +#if MEMP_OVERFLOW_CHECK + memp->file = file; + memp->line = line; +#if MEMP_MEM_MALLOC + memp_overflow_init_element(memp, desc); +#endif /* MEMP_MEM_MALLOC */ +#endif /* MEMP_OVERFLOW_CHECK */ + LWIP_ASSERT("memp_malloc: memp properly aligned", + ((mem_ptr_t)memp % MEM_ALIGNMENT) == 0); +#if MEMP_STATS + desc->stats->used++; + if (desc->stats->used > desc->stats->max) { + desc->stats->max = desc->stats->used; + } +#endif + SYS_ARCH_UNPROTECT(old_level); + /* cast through u8_t* to get rid of alignment warnings */ + return ((u8_t *)memp + MEMP_SIZE); + } else { +#if MEMP_STATS + desc->stats->err++; +#endif + SYS_ARCH_UNPROTECT(old_level); + LWIP_DEBUGF(MEMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("memp_malloc: out of memory in pool %s\n", desc->desc)); + } + + return NULL; +} + +/** + * Get an element from a custom pool. + * + * @param desc the pool to get an element from + * + * @return a pointer to the allocated memory or a NULL pointer on error + */ +void * +#if !MEMP_OVERFLOW_CHECK +memp_malloc_pool(const struct memp_desc *desc) +#else +memp_malloc_pool_fn(const struct memp_desc *desc, const char *file, const int line) +#endif +{ + LWIP_ASSERT("invalid pool desc", desc != NULL); + if (desc == NULL) { + return NULL; + } + +#if !MEMP_OVERFLOW_CHECK + return do_memp_malloc_pool(desc); +#else + return do_memp_malloc_pool_fn(desc, file, line); +#endif +} + +/** + * Get an element from a specific pool. + * + * @param type the pool to get an element from + * + * @return a pointer to the allocated memory or a NULL pointer on error + */ +void * +#if !MEMP_OVERFLOW_CHECK +memp_malloc(memp_t type) +#else +memp_malloc_fn(memp_t type, const char *file, const int line) +#endif +{ + void *memp; + LWIP_ERROR("memp_malloc: type < MEMP_MAX", (type < MEMP_MAX), return NULL;); + +#if MEMP_OVERFLOW_CHECK >= 2 + memp_overflow_check_all(); +#endif /* MEMP_OVERFLOW_CHECK >= 2 */ + +#if !MEMP_OVERFLOW_CHECK + memp = do_memp_malloc_pool(memp_pools[type]); +#else + memp = do_memp_malloc_pool_fn(memp_pools[type], file, line); +#endif + + return memp; +} + +static void +do_memp_free_pool(const struct memp_desc *desc, void *mem) +{ + struct memp *memp; + SYS_ARCH_DECL_PROTECT(old_level); + + LWIP_ASSERT("memp_free: mem properly aligned", + ((mem_ptr_t)mem % MEM_ALIGNMENT) == 0); + + /* cast through void* to get rid of alignment warnings */ + memp = (struct memp *)(void *)((u8_t *)mem - MEMP_SIZE); + + SYS_ARCH_PROTECT(old_level); + +#if MEMP_OVERFLOW_CHECK == 1 + memp_overflow_check_element(memp, desc); +#endif /* MEMP_OVERFLOW_CHECK */ + +#if MEMP_STATS + desc->stats->used--; +#endif + +#if MEMP_MEM_MALLOC + LWIP_UNUSED_ARG(desc); + SYS_ARCH_UNPROTECT(old_level); + mem_free(memp); +#else /* MEMP_MEM_MALLOC */ + memp->next = *desc->tab; + *desc->tab = memp; + +#if MEMP_SANITY_CHECK + LWIP_ASSERT("memp sanity", memp_sanity(desc)); +#endif /* MEMP_SANITY_CHECK */ + + SYS_ARCH_UNPROTECT(old_level); +#endif /* !MEMP_MEM_MALLOC */ +} + +/** + * Put a custom pool element back into its pool. + * + * @param desc the pool where to put mem + * @param mem the memp element to free + */ +void +memp_free_pool(const struct memp_desc *desc, void *mem) +{ + LWIP_ASSERT("invalid pool desc", desc != NULL); + if ((desc == NULL) || (mem == NULL)) { + return; + } + + do_memp_free_pool(desc, mem); +} + +/** + * Put an element back into its pool. + * + * @param type the pool where to put mem + * @param mem the memp element to free + */ +void +memp_free(memp_t type, void *mem) +{ +#ifdef LWIP_HOOK_MEMP_AVAILABLE + struct memp *old_first; +#endif + + LWIP_ERROR("memp_free: type < MEMP_MAX", (type < MEMP_MAX), return;); + + if (mem == NULL) { + return; + } + +#if MEMP_OVERFLOW_CHECK >= 2 + memp_overflow_check_all(); +#endif /* MEMP_OVERFLOW_CHECK >= 2 */ + +#ifdef LWIP_HOOK_MEMP_AVAILABLE + old_first = *memp_pools[type]->tab; +#endif + + do_memp_free_pool(memp_pools[type], mem); + +#ifdef LWIP_HOOK_MEMP_AVAILABLE + if (old_first == NULL) { + LWIP_HOOK_MEMP_AVAILABLE(type); + } +#endif +} diff --git a/middleware/lwip/src/core/netif.c b/middleware/lwip/src/core/netif.c new file mode 100644 index 0000000..cf73a20 --- /dev/null +++ b/middleware/lwip/src/core/netif.c @@ -0,0 +1,1853 @@ +/** + * @file + * lwIP network interface abstraction + * + * @defgroup netif Network interface (NETIF) + * @ingroup callbackstyle_api + * + * @defgroup netif_ip4 IPv4 address handling + * @ingroup netif + * + * @defgroup netif_ip6 IPv6 address handling + * @ingroup netif + * + * @defgroup netif_cd Client data handling + * Store data (void*) on a netif for application usage. + * @see @ref LWIP_NUM_NETIF_CLIENT_DATA + * @ingroup netif + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + */ + +#include "lwip/opt.h" + +#include /* memset */ +#include /* atoi */ + +#include "lwip/def.h" +#include "lwip/ip_addr.h" +#include "lwip/ip6_addr.h" +#include "lwip/netif.h" +#include "lwip/priv/tcp_priv.h" +#include "lwip/udp.h" +#include "lwip/priv/raw_priv.h" +#include "lwip/snmp.h" +#include "lwip/igmp.h" +#include "lwip/etharp.h" +#include "lwip/stats.h" +#include "lwip/sys.h" +#include "lwip/ip.h" +#if ENABLE_LOOPBACK +#if LWIP_NETIF_LOOPBACK_MULTITHREADING +#include "lwip/tcpip.h" +#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ +#endif /* ENABLE_LOOPBACK */ + +#include "netif/ethernet.h" + +#if LWIP_AUTOIP +#include "lwip/autoip.h" +#endif /* LWIP_AUTOIP */ +#if LWIP_DHCP +#include "lwip/dhcp.h" +#endif /* LWIP_DHCP */ +#if LWIP_ACD +#include "lwip/acd.h" +#endif /* LWIP_ACD */ +#if LWIP_IPV6_DHCP6 +#include "lwip/dhcp6.h" +#endif /* LWIP_IPV6_DHCP6 */ +#if LWIP_IPV6_MLD +#include "lwip/mld6.h" +#endif /* LWIP_IPV6_MLD */ +#if LWIP_IPV6 +#include "lwip/nd6.h" +#endif + +#if LWIP_NETIF_STATUS_CALLBACK +#define NETIF_STATUS_CALLBACK(n) do{ if (n->status_callback) { (n->status_callback)(n); }}while(0) +#else +#define NETIF_STATUS_CALLBACK(n) +#endif /* LWIP_NETIF_STATUS_CALLBACK */ + +#if LWIP_NETIF_LINK_CALLBACK +#define NETIF_LINK_CALLBACK(n) do{ if (n->link_callback) { (n->link_callback)(n); }}while(0) +#else +#define NETIF_LINK_CALLBACK(n) +#endif /* LWIP_NETIF_LINK_CALLBACK */ + +#if LWIP_NETIF_EXT_STATUS_CALLBACK +static netif_ext_callback_t *ext_callback; +#endif + +#if !LWIP_SINGLE_NETIF +struct netif *netif_list; +#endif /* !LWIP_SINGLE_NETIF */ +struct netif *netif_default; + +#define netif_index_to_num(index) ((index) - 1) +static u8_t netif_num; + +#if LWIP_NUM_NETIF_CLIENT_DATA > 0 +static u8_t netif_client_id; +#endif + +#define NETIF_REPORT_TYPE_IPV4 0x01 +#define NETIF_REPORT_TYPE_IPV6 0x02 +static void netif_issue_reports(struct netif *netif, u8_t report_type); + +#if LWIP_IPV6 +static err_t netif_null_output_ip6(struct netif *netif, struct pbuf *p, const ip6_addr_t *ipaddr); +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 +static err_t netif_null_output_ip4(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr); +#endif /* LWIP_IPV4 */ + +#if LWIP_HAVE_LOOPIF +#if LWIP_IPV4 +static err_t netif_loop_output_ipv4(struct netif *netif, struct pbuf *p, const ip4_addr_t *addr); +#endif +#if LWIP_IPV6 +static err_t netif_loop_output_ipv6(struct netif *netif, struct pbuf *p, const ip6_addr_t *addr); +#endif + + +static struct netif loop_netif; + +#if LWIP_TESTMODE +struct netif* netif_get_loopif(void) +{ + return &loop_netif; +} +#endif + + +/** + * Initialize a lwip network interface structure for a loopback interface + * + * @param netif the lwip network interface structure for this loopif + * @return ERR_OK if the loopif is initialized + * ERR_MEM if private data couldn't be allocated + */ +static err_t +netif_loopif_init(struct netif *netif) +{ + LWIP_ASSERT("netif_loopif_init: invalid netif", netif != NULL); + + /* initialize the snmp variables and counters inside the struct netif + * ifSpeed: no assumption can be made! + */ + MIB2_INIT_NETIF(netif, snmp_ifType_softwareLoopback, 0); + + netif->name[0] = 'l'; + netif->name[1] = 'o'; +#if LWIP_IPV4 + netif->output = netif_loop_output_ipv4; +#endif +#if LWIP_IPV6 + netif->output_ip6 = netif_loop_output_ipv6; +#endif +#if LWIP_LOOPIF_MULTICAST + netif_set_flags(netif, NETIF_FLAG_IGMP); +#endif + NETIF_SET_CHECKSUM_CTRL(netif, NETIF_CHECKSUM_DISABLE_ALL); + return ERR_OK; +} +#endif /* LWIP_HAVE_LOOPIF */ + +void +netif_init(void) +{ +#if LWIP_HAVE_LOOPIF +#if LWIP_IPV4 +#define LOOPIF_ADDRINIT &loop_ipaddr, &loop_netmask, &loop_gw, + ip4_addr_t loop_ipaddr, loop_netmask, loop_gw; + IP4_ADDR(&loop_gw, 127, 0, 0, 1); + IP4_ADDR(&loop_ipaddr, 127, 0, 0, 1); + IP4_ADDR(&loop_netmask, 255, 0, 0, 0); +#else /* LWIP_IPV4 */ +#define LOOPIF_ADDRINIT +#endif /* LWIP_IPV4 */ + +#if NO_SYS + netif_add(&loop_netif, LOOPIF_ADDRINIT NULL, netif_loopif_init, ip_input); +#else /* NO_SYS */ + netif_add(&loop_netif, LOOPIF_ADDRINIT NULL, netif_loopif_init, tcpip_input); +#endif /* NO_SYS */ + +#if LWIP_IPV6 + IP_ADDR6_HOST(loop_netif.ip6_addr, 0, 0, 0, 0x00000001UL); + loop_netif.ip6_addr_state[0] = IP6_ADDR_VALID; +#endif /* LWIP_IPV6 */ + + netif_set_link_up(&loop_netif); + netif_set_up(&loop_netif); + +#endif /* LWIP_HAVE_LOOPIF */ +} + +/** + * @ingroup lwip_nosys + * Forwards a received packet for input processing with + * ethernet_input() or ip_input() depending on netif flags. + * Don't call directly, pass to netif_add() and call + * netif->input(). + * Only works if the netif driver correctly sets + * NETIF_FLAG_ETHARP and/or NETIF_FLAG_ETHERNET flag! + */ +err_t +netif_input(struct pbuf *p, struct netif *inp) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ASSERT("netif_input: invalid pbuf", p != NULL); + LWIP_ASSERT("netif_input: invalid netif", inp != NULL); + +#if LWIP_ETHERNET + if (inp->flags & (NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET)) { + return ethernet_input(p, inp); + } else +#endif /* LWIP_ETHERNET */ + return ip_input(p, inp); +} + +/** + * @ingroup netif + * Add a network interface to the list of lwIP netifs. + * + * Same as @ref netif_add but without IPv4 addresses + */ +struct netif * +netif_add_noaddr(struct netif *netif, void *state, netif_init_fn init, netif_input_fn input) +{ + return netif_add(netif, +#if LWIP_IPV4 + NULL, NULL, NULL, +#endif /* LWIP_IPV4*/ + state, init, input); +} + +/** + * @ingroup netif + * Add a network interface to the list of lwIP netifs. + * + * @param netif a pre-allocated netif structure + * @param ipaddr IP address for the new netif + * @param netmask network mask for the new netif + * @param gw default gateway IP address for the new netif + * @param state opaque data passed to the new netif + * @param init callback function that initializes the interface + * @param input callback function that is called to pass + * ingress packets up in the protocol layer stack.
+ * It is recommended to use a function that passes the input directly + * to the stack (netif_input(), NO_SYS=1 mode) or via sending a + * message to TCPIP thread (tcpip_input(), NO_SYS=0 mode).
+ * These functions use netif flags NETIF_FLAG_ETHARP and NETIF_FLAG_ETHERNET + * to decide whether to forward to ethernet_input() or ip_input(). + * In other words, the functions only work when the netif + * driver is implemented correctly!
+ * Most members of struct netif should be be initialized by the + * netif init function = netif driver (init parameter of this function).
+ * IPv6: Don't forget to call netif_create_ip6_linklocal_address() after + * setting the MAC address in struct netif.hwaddr + * (IPv6 requires a link-local address). + * + * @return netif, or NULL if failed. + */ +struct netif * +netif_add(struct netif *netif, +#if LWIP_IPV4 + const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw, +#endif /* LWIP_IPV4 */ + void *state, netif_init_fn init, netif_input_fn input) +{ +#if LWIP_IPV6 + s8_t i; +#endif + + LWIP_ASSERT_CORE_LOCKED(); + +#if LWIP_SINGLE_NETIF + if (netif_default != NULL) { + LWIP_ASSERT("single netif already set", 0); + return NULL; + } +#endif + + LWIP_ERROR("netif_add: invalid netif", netif != NULL, return NULL); + LWIP_ERROR("netif_add: No init function given", init != NULL, return NULL); + +#if LWIP_IPV4 + if (ipaddr == NULL) { + ipaddr = ip_2_ip4(IP4_ADDR_ANY); + } + if (netmask == NULL) { + netmask = ip_2_ip4(IP4_ADDR_ANY); + } + if (gw == NULL) { + gw = ip_2_ip4(IP4_ADDR_ANY); + } + + /* reset new interface configuration state */ + ip_addr_set_zero_ip4(&netif->ip_addr); + ip_addr_set_zero_ip4(&netif->netmask); + ip_addr_set_zero_ip4(&netif->gw); + netif->output = netif_null_output_ip4; +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + ip_addr_set_zero_ip6(&netif->ip6_addr[i]); + netif->ip6_addr_state[i] = IP6_ADDR_INVALID; +#if LWIP_IPV6_ADDRESS_LIFETIMES + netif->ip6_addr_valid_life[i] = IP6_ADDR_LIFE_STATIC; + netif->ip6_addr_pref_life[i] = IP6_ADDR_LIFE_STATIC; +#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */ + } + netif->output_ip6 = netif_null_output_ip6; +#endif /* LWIP_IPV6 */ + NETIF_SET_CHECKSUM_CTRL(netif, NETIF_CHECKSUM_ENABLE_ALL); + netif->mtu = 0; + netif->flags = 0; +#ifdef netif_get_client_data + memset(netif->client_data, 0, sizeof(netif->client_data)); +#endif /* LWIP_NUM_NETIF_CLIENT_DATA */ +#if LWIP_IPV6 +#if LWIP_IPV6_AUTOCONFIG + /* IPv6 address autoconfiguration should be enabled by default */ + netif->ip6_autoconfig_enabled = 1; +#endif /* LWIP_IPV6_AUTOCONFIG */ + nd6_restart_netif(netif); +#endif /* LWIP_IPV6 */ +#if LWIP_NETIF_STATUS_CALLBACK + netif->status_callback = NULL; +#endif /* LWIP_NETIF_STATUS_CALLBACK */ +#if LWIP_NETIF_LINK_CALLBACK + netif->link_callback = NULL; +#endif /* LWIP_NETIF_LINK_CALLBACK */ +#if LWIP_IGMP + netif->igmp_mac_filter = NULL; +#endif /* LWIP_IGMP */ +#if LWIP_IPV6 && LWIP_IPV6_MLD + netif->mld_mac_filter = NULL; +#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ + + /* remember netif specific state information data */ + netif->state = state; + netif->num = netif_num; + netif->input = input; + +#if LWIP_ACD + netif->acd_list = NULL; +#endif /* LWIP_ACD */ + NETIF_RESET_HINTS(netif); +#if ENABLE_LOOPBACK + netif->loop_first = NULL; + netif->loop_last = NULL; +#if LWIP_LOOPBACK_MAX_PBUFS + netif->loop_cnt_current = 0; +#endif /* LWIP_LOOPBACK_MAX_PBUFS */ +#if LWIP_NETIF_LOOPBACK_MULTITHREADING + netif->reschedule_poll = 0; +#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ +#endif /* ENABLE_LOOPBACK */ + +#if LWIP_IPV4 + netif_set_addr(netif, ipaddr, netmask, gw); +#endif /* LWIP_IPV4 */ + + /* call user specified initialization function for netif */ + if (init(netif) != ERR_OK) { + return NULL; + } +#if LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES + /* Initialize the MTU for IPv6 to the one set by the netif driver. + This can be updated later by RA. */ + netif->mtu6 = netif->mtu; +#endif /* LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES */ + +#if !LWIP_SINGLE_NETIF + /* Assign a unique netif number in the range [0..254], so that (num+1) can + serve as an interface index that fits in a u8_t. + We assume that the new netif has not yet been added to the list here. + This algorithm is O(n^2), but that should be OK for lwIP. + */ + { + struct netif *netif2; + int num_netifs; + do { + if (netif->num == 255) { + netif->num = 0; + } + num_netifs = 0; + for (netif2 = netif_list; netif2 != NULL; netif2 = netif2->next) { + LWIP_ASSERT("netif already added", netif2 != netif); + num_netifs++; + LWIP_ASSERT("too many netifs, max. supported number is 255", num_netifs <= 255); + if (netif2->num == netif->num) { + netif->num++; + break; + } + } + } while (netif2 != NULL); + } + if (netif->num == 254) { + netif_num = 0; + } else { + netif_num = (u8_t)(netif->num + 1); + } + + /* add this netif to the list */ + netif->next = netif_list; + netif_list = netif; +#endif /* "LWIP_SINGLE_NETIF */ + mib2_netif_added(netif); + +#if LWIP_IGMP + /* start IGMP processing */ + if (netif->flags & NETIF_FLAG_IGMP) { + igmp_start(netif); + } +#endif /* LWIP_IGMP */ + + LWIP_DEBUGF(NETIF_DEBUG, ("netif: added interface %c%c IP", + netif->name[0], netif->name[1])); +#if LWIP_IPV4 + LWIP_DEBUGF(NETIF_DEBUG, (" addr ")); + ip4_addr_debug_print(NETIF_DEBUG, ipaddr); + LWIP_DEBUGF(NETIF_DEBUG, (" netmask ")); + ip4_addr_debug_print(NETIF_DEBUG, netmask); + LWIP_DEBUGF(NETIF_DEBUG, (" gw ")); + ip4_addr_debug_print(NETIF_DEBUG, gw); +#endif /* LWIP_IPV4 */ + LWIP_DEBUGF(NETIF_DEBUG, ("\n")); + + netif_invoke_ext_callback(netif, LWIP_NSC_NETIF_ADDED, NULL); + + return netif; +} + +static void +netif_do_ip_addr_changed(const ip_addr_t *old_addr, const ip_addr_t *new_addr) +{ +#if LWIP_TCP + tcp_netif_ip_addr_changed(old_addr, new_addr); +#endif /* LWIP_TCP */ +#if LWIP_UDP + udp_netif_ip_addr_changed(old_addr, new_addr); +#endif /* LWIP_UDP */ +#if LWIP_RAW + raw_netif_ip_addr_changed(old_addr, new_addr); +#endif /* LWIP_RAW */ +} + +#if LWIP_IPV4 +static int +netif_do_set_ipaddr(struct netif *netif, const ip4_addr_t *ipaddr, ip_addr_t *old_addr) +{ + LWIP_ASSERT("invalid pointer", ipaddr != NULL); + LWIP_ASSERT("invalid pointer", old_addr != NULL); + + /* address is actually being changed? */ + if (ip4_addr_eq(ipaddr, netif_ip4_addr(netif)) == 0) { + ip_addr_t new_addr; + *ip_2_ip4(&new_addr) = *ipaddr; + IP_SET_TYPE_VAL(new_addr, IPADDR_TYPE_V4); + + ip_addr_copy(*old_addr, *netif_ip_addr4(netif)); + + LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_STATE, ("netif_set_ipaddr: netif address being changed\n")); + netif_do_ip_addr_changed(old_addr, &new_addr); + +#if LWIP_ACD + acd_netif_ip_addr_changed(netif, old_addr, &new_addr); +#endif /* LWIP_ACD */ + + mib2_remove_ip4(netif); + mib2_remove_route_ip4(0, netif); + /* set new IP address to netif */ + ip4_addr_set(ip_2_ip4(&netif->ip_addr), ipaddr); + IP_SET_TYPE_VAL(netif->ip_addr, IPADDR_TYPE_V4); + mib2_add_ip4(netif); + mib2_add_route_ip4(0, netif); + + netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV4); + + NETIF_STATUS_CALLBACK(netif); + return 1; /* address changed */ + } + return 0; /* address unchanged */ +} + +/** + * @ingroup netif_ip4 + * Change the IP address of a network interface + * + * @param netif the network interface to change + * @param ipaddr the new IP address + * + * @note call netif_set_addr() if you also want to change netmask and + * default gateway + */ +void +netif_set_ipaddr(struct netif *netif, const ip4_addr_t *ipaddr) +{ + ip_addr_t old_addr; + + LWIP_ERROR("netif_set_ipaddr: invalid netif", netif != NULL, return); + + /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ + if (ipaddr == NULL) { + ipaddr = IP4_ADDR_ANY4; + } + + LWIP_ASSERT_CORE_LOCKED(); + + if (netif_do_set_ipaddr(netif, ipaddr, &old_addr)) { +#if LWIP_NETIF_EXT_STATUS_CALLBACK + netif_ext_callback_args_t args; + args.ipv4_changed.old_address = &old_addr; + netif_invoke_ext_callback(netif, LWIP_NSC_IPV4_ADDRESS_CHANGED, &args); +#endif + } +} + +static int +netif_do_set_netmask(struct netif *netif, const ip4_addr_t *netmask, ip_addr_t *old_nm) +{ + /* address is actually being changed? */ + if (ip4_addr_eq(netmask, netif_ip4_netmask(netif)) == 0) { +#if LWIP_NETIF_EXT_STATUS_CALLBACK + LWIP_ASSERT("invalid pointer", old_nm != NULL); + ip_addr_copy(*old_nm, *netif_ip_netmask4(netif)); +#else + LWIP_UNUSED_ARG(old_nm); +#endif + mib2_remove_route_ip4(0, netif); + /* set new netmask to netif */ + ip4_addr_set(ip_2_ip4(&netif->netmask), netmask); + IP_SET_TYPE_VAL(netif->netmask, IPADDR_TYPE_V4); + mib2_add_route_ip4(0, netif); + LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("netif: netmask of interface %c%c set to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + netif->name[0], netif->name[1], + ip4_addr1_16(netif_ip4_netmask(netif)), + ip4_addr2_16(netif_ip4_netmask(netif)), + ip4_addr3_16(netif_ip4_netmask(netif)), + ip4_addr4_16(netif_ip4_netmask(netif)))); + return 1; /* netmask changed */ + } + return 0; /* netmask unchanged */ +} + +/** + * @ingroup netif_ip4 + * Change the netmask of a network interface + * + * @param netif the network interface to change + * @param netmask the new netmask + * + * @note call netif_set_addr() if you also want to change ip address and + * default gateway + */ +void +netif_set_netmask(struct netif *netif, const ip4_addr_t *netmask) +{ +#if LWIP_NETIF_EXT_STATUS_CALLBACK + ip_addr_t old_nm_val; + ip_addr_t *old_nm = &old_nm_val; +#else + ip_addr_t *old_nm = NULL; +#endif + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("netif_set_netmask: invalid netif", netif != NULL, return); + + /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ + if (netmask == NULL) { + netmask = IP4_ADDR_ANY4; + } + + if (netif_do_set_netmask(netif, netmask, old_nm)) { +#if LWIP_NETIF_EXT_STATUS_CALLBACK + netif_ext_callback_args_t args; + args.ipv4_changed.old_netmask = old_nm; + netif_invoke_ext_callback(netif, LWIP_NSC_IPV4_NETMASK_CHANGED, &args); +#endif + } +} + +static int +netif_do_set_gw(struct netif *netif, const ip4_addr_t *gw, ip_addr_t *old_gw) +{ + /* address is actually being changed? */ + if (ip4_addr_eq(gw, netif_ip4_gw(netif)) == 0) { +#if LWIP_NETIF_EXT_STATUS_CALLBACK + LWIP_ASSERT("invalid pointer", old_gw != NULL); + ip_addr_copy(*old_gw, *netif_ip_gw4(netif)); +#else + LWIP_UNUSED_ARG(old_gw); +#endif + + ip4_addr_set(ip_2_ip4(&netif->gw), gw); + IP_SET_TYPE_VAL(netif->gw, IPADDR_TYPE_V4); + LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("netif: GW address of interface %c%c set to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", + netif->name[0], netif->name[1], + ip4_addr1_16(netif_ip4_gw(netif)), + ip4_addr2_16(netif_ip4_gw(netif)), + ip4_addr3_16(netif_ip4_gw(netif)), + ip4_addr4_16(netif_ip4_gw(netif)))); + return 1; /* gateway changed */ + } + return 0; /* gateway unchanged */ +} + +/** + * @ingroup netif_ip4 + * Change the default gateway for a network interface + * + * @param netif the network interface to change + * @param gw the new default gateway + * + * @note call netif_set_addr() if you also want to change ip address and netmask + */ +void +netif_set_gw(struct netif *netif, const ip4_addr_t *gw) +{ +#if LWIP_NETIF_EXT_STATUS_CALLBACK + ip_addr_t old_gw_val; + ip_addr_t *old_gw = &old_gw_val; +#else + ip_addr_t *old_gw = NULL; +#endif + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("netif_set_gw: invalid netif", netif != NULL, return); + + /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ + if (gw == NULL) { + gw = IP4_ADDR_ANY4; + } + + if (netif_do_set_gw(netif, gw, old_gw)) { +#if LWIP_NETIF_EXT_STATUS_CALLBACK + netif_ext_callback_args_t args; + args.ipv4_changed.old_gw = old_gw; + netif_invoke_ext_callback(netif, LWIP_NSC_IPV4_GATEWAY_CHANGED, &args); +#endif + } +} + +/** + * @ingroup netif_ip4 + * Change IP address configuration for a network interface (including netmask + * and default gateway). + * + * @param netif the network interface to change + * @param ipaddr the new IP address + * @param netmask the new netmask + * @param gw the new default gateway + */ +void +netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, + const ip4_addr_t *gw) +{ +#if LWIP_NETIF_EXT_STATUS_CALLBACK + netif_nsc_reason_t change_reason = LWIP_NSC_NONE; + netif_ext_callback_args_t cb_args; + ip_addr_t old_nm_val; + ip_addr_t old_gw_val; + ip_addr_t *old_nm = &old_nm_val; + ip_addr_t *old_gw = &old_gw_val; +#else + ip_addr_t *old_nm = NULL; + ip_addr_t *old_gw = NULL; +#endif + ip_addr_t old_addr; + int remove; + + LWIP_ASSERT_CORE_LOCKED(); + + /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ + if (ipaddr == NULL) { + ipaddr = IP4_ADDR_ANY4; + } + if (netmask == NULL) { + netmask = IP4_ADDR_ANY4; + } + if (gw == NULL) { + gw = IP4_ADDR_ANY4; + } + + remove = ip4_addr_isany(ipaddr); + if (remove) { + /* when removing an address, we have to remove it *before* changing netmask/gw + to ensure that tcp RST segment can be sent correctly */ + if (netif_do_set_ipaddr(netif, ipaddr, &old_addr)) { +#if LWIP_NETIF_EXT_STATUS_CALLBACK + change_reason |= LWIP_NSC_IPV4_ADDRESS_CHANGED; + cb_args.ipv4_changed.old_address = &old_addr; +#endif + } + } + if (netif_do_set_netmask(netif, netmask, old_nm)) { +#if LWIP_NETIF_EXT_STATUS_CALLBACK + change_reason |= LWIP_NSC_IPV4_NETMASK_CHANGED; + cb_args.ipv4_changed.old_netmask = old_nm; +#endif + } + if (netif_do_set_gw(netif, gw, old_gw)) { +#if LWIP_NETIF_EXT_STATUS_CALLBACK + change_reason |= LWIP_NSC_IPV4_GATEWAY_CHANGED; + cb_args.ipv4_changed.old_gw = old_gw; +#endif + } + if (!remove) { + /* set ipaddr last to ensure netmask/gw have been set when status callback is called */ + if (netif_do_set_ipaddr(netif, ipaddr, &old_addr)) { +#if LWIP_NETIF_EXT_STATUS_CALLBACK + change_reason |= LWIP_NSC_IPV4_ADDRESS_CHANGED; + cb_args.ipv4_changed.old_address = &old_addr; +#endif + } + } + +#if LWIP_NETIF_EXT_STATUS_CALLBACK + if (change_reason != LWIP_NSC_NONE) { + change_reason |= LWIP_NSC_IPV4_SETTINGS_CHANGED; + } + if (!remove) { + /* Issue a callback even if the address hasn't changed, eg. DHCP reboot */ + change_reason |= LWIP_NSC_IPV4_ADDR_VALID; + } + if (change_reason != LWIP_NSC_NONE) { + netif_invoke_ext_callback(netif, change_reason, &cb_args); + } +#endif +} +#endif /* LWIP_IPV4*/ + +/** + * @ingroup netif + * Remove a network interface from the list of lwIP netifs. + * + * @param netif the network interface to remove + */ +void +netif_remove(struct netif *netif) +{ +#if LWIP_IPV6 + int i; +#endif + + LWIP_ASSERT_CORE_LOCKED(); + + if (netif == NULL) { + return; + } + + netif_invoke_ext_callback(netif, LWIP_NSC_NETIF_REMOVED, NULL); + +#if LWIP_IPV4 + if (!ip4_addr_isany_val(*netif_ip4_addr(netif))) { + netif_do_ip_addr_changed(netif_ip_addr4(netif), NULL); + } + +#if LWIP_IGMP + /* stop IGMP processing */ + if (netif->flags & NETIF_FLAG_IGMP) { + igmp_stop(netif); + } +#endif /* LWIP_IGMP */ +#endif /* LWIP_IPV4*/ + +#if LWIP_IPV6 + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i))) { + netif_do_ip_addr_changed(netif_ip_addr6(netif, i), NULL); + } + } +#if LWIP_IPV6_MLD + /* stop MLD processing */ + mld6_stop(netif); +#endif /* LWIP_IPV6_MLD */ +#endif /* LWIP_IPV6 */ + if (netif_is_up(netif)) { + /* set netif down before removing (call callback function) */ + netif_set_down(netif); + } + + mib2_remove_ip4(netif); + + /* this netif is default? */ + if (netif_default == netif) { + /* reset default netif */ + netif_set_default(NULL); + } +#if !LWIP_SINGLE_NETIF + /* is it the first netif? */ + if (netif_list == netif) { + netif_list = netif->next; + } else { + /* look for netif further down the list */ + struct netif *tmp_netif; + NETIF_FOREACH(tmp_netif) { + if (tmp_netif->next == netif) { + tmp_netif->next = netif->next; + break; + } + } + if (tmp_netif == NULL) { + return; /* netif is not on the list */ + } + } +#endif /* !LWIP_SINGLE_NETIF */ + mib2_netif_removed(netif); +#if LWIP_NETIF_REMOVE_CALLBACK + if (netif->remove_callback) { + netif->remove_callback(netif); + } +#endif /* LWIP_NETIF_REMOVE_CALLBACK */ + LWIP_DEBUGF( NETIF_DEBUG, ("netif_remove: removed netif\n") ); +} + +/** + * @ingroup netif + * Set a network interface as the default network interface + * (used to output all packets for which no specific route is found) + * + * @param netif the default network interface + */ +void +netif_set_default(struct netif *netif) +{ + LWIP_ASSERT_CORE_LOCKED(); + + if (netif == NULL) { + /* remove default route */ + mib2_remove_route_ip4(1, netif); + } else { + /* install default route */ + mib2_add_route_ip4(1, netif); + } + netif_default = netif; + LWIP_DEBUGF(NETIF_DEBUG, ("netif: setting default interface %c%c\n", + netif ? netif->name[0] : '\'', netif ? netif->name[1] : '\'')); +} + +/** + * @ingroup netif + * Bring an interface up, available for processing + * traffic. + */ +void +netif_set_up(struct netif *netif) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("netif_set_up: invalid netif", netif != NULL, return); + + if (!(netif->flags & NETIF_FLAG_UP)) { + netif_set_flags(netif, NETIF_FLAG_UP); + + MIB2_COPY_SYSUPTIME_TO(&netif->ts); + + NETIF_STATUS_CALLBACK(netif); + +#if LWIP_NETIF_EXT_STATUS_CALLBACK + { + netif_ext_callback_args_t args; + args.status_changed.state = 1; + netif_invoke_ext_callback(netif, LWIP_NSC_STATUS_CHANGED, &args); + } +#endif + + netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV4 | NETIF_REPORT_TYPE_IPV6); +#if LWIP_IPV6 + nd6_restart_netif(netif); +#endif /* LWIP_IPV6 */ + } +} + +/** Send ARP/IGMP/MLD/RS events, e.g. on link-up/netif-up or addr-change + */ +static void +netif_issue_reports(struct netif *netif, u8_t report_type) +{ + LWIP_ASSERT("netif_issue_reports: invalid netif", netif != NULL); + + /* Only send reports when both link and admin states are up */ + if (!(netif->flags & NETIF_FLAG_LINK_UP) || + !(netif->flags & NETIF_FLAG_UP)) { + return; + } + +#if LWIP_IPV4 + if ((report_type & NETIF_REPORT_TYPE_IPV4) && + !ip4_addr_isany_val(*netif_ip4_addr(netif))) { +#if LWIP_ARP && !LWIP_ACD + /* For Ethernet network interfaces: + * we would like to send a "gratuitous ARP". + * Only needs to be done here if ACD isn't configured. + */ + if (netif->flags & (NETIF_FLAG_ETHARP)) { + etharp_gratuitous(netif); + } +#endif /* LWIP_ARP */ + +#if LWIP_IGMP + /* resend IGMP memberships */ + if (netif->flags & NETIF_FLAG_IGMP) { + igmp_report_groups(netif); + } +#endif /* LWIP_IGMP */ + } +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 + if (report_type & NETIF_REPORT_TYPE_IPV6) { +#if LWIP_IPV6_MLD + /* send mld memberships */ + mld6_report_groups(netif); +#endif /* LWIP_IPV6_MLD */ + } +#endif /* LWIP_IPV6 */ +} + +/** + * @ingroup netif + * Bring an interface down, disabling any traffic processing. + */ +void +netif_set_down(struct netif *netif) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("netif_set_down: invalid netif", netif != NULL, return); + + if (netif->flags & NETIF_FLAG_UP) { +#if LWIP_NETIF_EXT_STATUS_CALLBACK + { + netif_ext_callback_args_t args; + args.status_changed.state = 0; + netif_invoke_ext_callback(netif, LWIP_NSC_STATUS_CHANGED, &args); + } +#endif + + netif_clear_flags(netif, NETIF_FLAG_UP); + MIB2_COPY_SYSUPTIME_TO(&netif->ts); + +#if LWIP_IPV4 && LWIP_ARP + if (netif->flags & NETIF_FLAG_ETHARP) { + etharp_cleanup_netif(netif); + } +#endif /* LWIP_IPV4 && LWIP_ARP */ + +#if LWIP_IPV6 + nd6_cleanup_netif(netif); +#endif /* LWIP_IPV6 */ + + NETIF_STATUS_CALLBACK(netif); + } +} + +#if LWIP_NETIF_STATUS_CALLBACK +/** + * @ingroup netif + * Set callback to be called when interface is brought up/down or address is changed while up + */ +void +netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback) +{ + LWIP_ASSERT_CORE_LOCKED(); + + if (netif) { + netif->status_callback = status_callback; + } +} +#endif /* LWIP_NETIF_STATUS_CALLBACK */ + +#if LWIP_NETIF_REMOVE_CALLBACK +/** + * @ingroup netif + * Set callback to be called when the interface has been removed + */ +void +netif_set_remove_callback(struct netif *netif, netif_status_callback_fn remove_callback) +{ + LWIP_ASSERT_CORE_LOCKED(); + + if (netif) { + netif->remove_callback = remove_callback; + } +} +#endif /* LWIP_NETIF_REMOVE_CALLBACK */ + +/** + * @ingroup netif + * Called by a driver when its link goes up + */ +void +netif_set_link_up(struct netif *netif) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("netif_set_link_up: invalid netif", netif != NULL, return); + + if (!(netif->flags & NETIF_FLAG_LINK_UP)) { + netif_set_flags(netif, NETIF_FLAG_LINK_UP); + +#if LWIP_DHCP + dhcp_network_changed_link_up(netif); +#endif /* LWIP_DHCP */ + +#if LWIP_AUTOIP + autoip_network_changed_link_up(netif); +#endif /* LWIP_AUTOIP */ + + netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV4 | NETIF_REPORT_TYPE_IPV6); +#if LWIP_IPV6 + nd6_restart_netif(netif); +#endif /* LWIP_IPV6 */ + + NETIF_LINK_CALLBACK(netif); +#if LWIP_NETIF_EXT_STATUS_CALLBACK + { + netif_ext_callback_args_t args; + args.link_changed.state = 1; + netif_invoke_ext_callback(netif, LWIP_NSC_LINK_CHANGED, &args); + } +#endif + } +} + +/** + * @ingroup netif + * Called by a driver when its link goes down + */ +void +netif_set_link_down(struct netif *netif) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("netif_set_link_down: invalid netif", netif != NULL, return); + + if (netif->flags & NETIF_FLAG_LINK_UP) { + netif_clear_flags(netif, NETIF_FLAG_LINK_UP); + +#if LWIP_AUTOIP + autoip_network_changed_link_down(netif); +#endif /* LWIP_AUTOIP */ + +#if LWIP_ACD + acd_network_changed_link_down(netif); +#endif /* LWIP_ACD */ + +#if LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES + netif->mtu6 = netif->mtu; +#endif + + NETIF_LINK_CALLBACK(netif); +#if LWIP_NETIF_EXT_STATUS_CALLBACK + { + netif_ext_callback_args_t args; + args.link_changed.state = 0; + netif_invoke_ext_callback(netif, LWIP_NSC_LINK_CHANGED, &args); + } +#endif + } +} + +#if LWIP_NETIF_LINK_CALLBACK +/** + * @ingroup netif + * Set callback to be called when link is brought up/down + */ +void +netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callback) +{ + LWIP_ASSERT_CORE_LOCKED(); + + if (netif) { + netif->link_callback = link_callback; + } +} +#endif /* LWIP_NETIF_LINK_CALLBACK */ + +#if ENABLE_LOOPBACK +/** + * @ingroup netif + * Send an IP packet to be received on the same netif (loopif-like). + * The pbuf is copied and added to an internal queue which is fed to + * netif->input by netif_poll(). + * In multithreaded mode, the call to netif_poll() is queued to be done on the + * TCP/IP thread. + * In callback mode, the user has the responsibility to call netif_poll() in + * the main loop of their application. + * + * @param netif the lwip network interface structure + * @param p the (IP) packet to 'send' + * @return ERR_OK if the packet has been sent + * ERR_MEM if the pbuf used to copy the packet couldn't be allocated + */ +err_t +netif_loop_output(struct netif *netif, struct pbuf *p) +{ + struct pbuf *r; + err_t err; + struct pbuf *last; +#if LWIP_LOOPBACK_MAX_PBUFS + u16_t clen = 0; +#endif /* LWIP_LOOPBACK_MAX_PBUFS */ + /* If we have a loopif, SNMP counters are adjusted for it, + * if not they are adjusted for 'netif'. */ +#if MIB2_STATS +#if LWIP_HAVE_LOOPIF + struct netif *stats_if = &loop_netif; +#else /* LWIP_HAVE_LOOPIF */ + struct netif *stats_if = netif; +#endif /* LWIP_HAVE_LOOPIF */ +#endif /* MIB2_STATS */ +#if LWIP_NETIF_LOOPBACK_MULTITHREADING + u8_t schedule_poll = 0; +#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ + SYS_ARCH_DECL_PROTECT(lev); + + LWIP_ASSERT("netif_loop_output: invalid netif", netif != NULL); + LWIP_ASSERT("netif_loop_output: invalid pbuf", p != NULL); + + /* Allocate a new pbuf */ + r = pbuf_alloc(PBUF_LINK, p->tot_len, PBUF_RAM); + if (r == NULL) { + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(stats_if, ifoutdiscards); + return ERR_MEM; + } +#if LWIP_LOOPBACK_MAX_PBUFS + clen = pbuf_clen(r); + /* check for overflow or too many pbuf on queue */ + if (((netif->loop_cnt_current + clen) < netif->loop_cnt_current) || + ((netif->loop_cnt_current + clen) > LWIP_MIN(LWIP_LOOPBACK_MAX_PBUFS, 0xFFFF))) { + pbuf_free(r); + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(stats_if, ifoutdiscards); + return ERR_MEM; + } + netif->loop_cnt_current = (u16_t)(netif->loop_cnt_current + clen); +#endif /* LWIP_LOOPBACK_MAX_PBUFS */ + + /* Copy the whole pbuf queue p into the single pbuf r */ + if ((err = pbuf_copy(r, p)) != ERR_OK) { + pbuf_free(r); + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(stats_if, ifoutdiscards); + return err; + } + + /* Put the packet on a linked list which gets emptied through calling + netif_poll(). */ + + /* let last point to the last pbuf in chain r */ + for (last = r; last->next != NULL; last = last->next) { + /* nothing to do here, just get to the last pbuf */ + } + + SYS_ARCH_PROTECT(lev); + if (netif->loop_first != NULL) { + LWIP_ASSERT("if first != NULL, last must also be != NULL", netif->loop_last != NULL); + netif->loop_last->next = r; + netif->loop_last = last; +#if LWIP_NETIF_LOOPBACK_MULTITHREADING + if (netif->reschedule_poll) { + schedule_poll = 1; + netif->reschedule_poll = 0; + } +#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ + } else { + netif->loop_first = r; + netif->loop_last = last; +#if LWIP_NETIF_LOOPBACK_MULTITHREADING + /* No existing packets queued, schedule poll */ + schedule_poll = 1; +#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ + } + SYS_ARCH_UNPROTECT(lev); + + LINK_STATS_INC(link.xmit); + MIB2_STATS_NETIF_ADD(stats_if, ifoutoctets, p->tot_len); + MIB2_STATS_NETIF_INC(stats_if, ifoutucastpkts); + +#if LWIP_NETIF_LOOPBACK_MULTITHREADING + /* For multithreading environment, schedule a call to netif_poll */ + if (schedule_poll) { + if (tcpip_try_callback((tcpip_callback_fn)netif_poll, netif) != ERR_OK) { + SYS_ARCH_PROTECT(lev); + netif->reschedule_poll = 1; + SYS_ARCH_UNPROTECT(lev); + } + } +#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ + + return ERR_OK; +} + +#if LWIP_HAVE_LOOPIF +#if LWIP_IPV4 +static err_t +netif_loop_output_ipv4(struct netif *netif, struct pbuf *p, const ip4_addr_t *addr) +{ + LWIP_UNUSED_ARG(addr); + return netif_loop_output(netif, p); +} +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 +static err_t +netif_loop_output_ipv6(struct netif *netif, struct pbuf *p, const ip6_addr_t *addr) +{ + LWIP_UNUSED_ARG(addr); + return netif_loop_output(netif, p); +} +#endif /* LWIP_IPV6 */ +#endif /* LWIP_HAVE_LOOPIF */ + + +/** + * Call netif_poll() in the main loop of your application. This is to prevent + * reentering non-reentrant functions like tcp_input(). Packets passed to + * netif_loop_output() are put on a list that is passed to netif->input() by + * netif_poll(). + */ +void +netif_poll(struct netif *netif) +{ + /* If we have a loopif, SNMP counters are adjusted for it, + * if not they are adjusted for 'netif'. */ +#if MIB2_STATS +#if LWIP_HAVE_LOOPIF + struct netif *stats_if = &loop_netif; +#else /* LWIP_HAVE_LOOPIF */ + struct netif *stats_if = netif; +#endif /* LWIP_HAVE_LOOPIF */ +#endif /* MIB2_STATS */ + SYS_ARCH_DECL_PROTECT(lev); + + LWIP_ASSERT("netif_poll: invalid netif", netif != NULL); + + /* Get a packet from the list. With SYS_LIGHTWEIGHT_PROT=1, this is protected */ + SYS_ARCH_PROTECT(lev); + while (netif->loop_first != NULL) { + struct pbuf *in, *in_end; +#if LWIP_LOOPBACK_MAX_PBUFS + u8_t clen = 1; +#endif /* LWIP_LOOPBACK_MAX_PBUFS */ + + in = in_end = netif->loop_first; + while (in_end->len != in_end->tot_len) { + LWIP_ASSERT("bogus pbuf: len != tot_len but next == NULL!", in_end->next != NULL); + in_end = in_end->next; +#if LWIP_LOOPBACK_MAX_PBUFS + clen++; +#endif /* LWIP_LOOPBACK_MAX_PBUFS */ + } +#if LWIP_LOOPBACK_MAX_PBUFS + /* adjust the number of pbufs on queue */ + LWIP_ASSERT("netif->loop_cnt_current underflow", + ((netif->loop_cnt_current - clen) < netif->loop_cnt_current)); + netif->loop_cnt_current = (u16_t)(netif->loop_cnt_current - clen); +#endif /* LWIP_LOOPBACK_MAX_PBUFS */ + + /* 'in_end' now points to the last pbuf from 'in' */ + if (in_end == netif->loop_last) { + /* this was the last pbuf in the list */ + netif->loop_first = netif->loop_last = NULL; + } else { + /* pop the pbuf off the list */ + netif->loop_first = in_end->next; + LWIP_ASSERT("should not be null since first != last!", netif->loop_first != NULL); + } + /* De-queue the pbuf from its successors on the 'loop_' list. */ + in_end->next = NULL; + SYS_ARCH_UNPROTECT(lev); + + in->if_idx = netif_get_index(netif); + + LINK_STATS_INC(link.recv); + MIB2_STATS_NETIF_ADD(stats_if, ifinoctets, in->tot_len); + MIB2_STATS_NETIF_INC(stats_if, ifinucastpkts); + /* loopback packets are always IP packets! */ + if (ip_input(in, netif) != ERR_OK) { + pbuf_free(in); + } + SYS_ARCH_PROTECT(lev); + } + SYS_ARCH_UNPROTECT(lev); +} + +#if !LWIP_NETIF_LOOPBACK_MULTITHREADING +/** + * Calls netif_poll() for every netif on the netif_list. + */ +void +netif_poll_all(void) +{ + struct netif *netif; + /* loop through netifs */ + NETIF_FOREACH(netif) { + netif_poll(netif); + } +} +#endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */ +#endif /* ENABLE_LOOPBACK */ + +#if LWIP_NUM_NETIF_CLIENT_DATA > 0 +/** + * @ingroup netif_cd + * Allocate an index to store data in client_data member of struct netif. + * Returned value is an index in mentioned array. + * @see LWIP_NUM_NETIF_CLIENT_DATA + */ +u8_t +netif_alloc_client_data_id(void) +{ + u8_t result = netif_client_id; + netif_client_id++; + + LWIP_ASSERT_CORE_LOCKED(); + +#if LWIP_NUM_NETIF_CLIENT_DATA > 256 +#error LWIP_NUM_NETIF_CLIENT_DATA must be <= 256 +#endif + LWIP_ASSERT("Increase LWIP_NUM_NETIF_CLIENT_DATA in lwipopts.h", result < LWIP_NUM_NETIF_CLIENT_DATA); + return (u8_t)(result + LWIP_NETIF_CLIENT_DATA_INDEX_MAX); +} +#endif + +#if LWIP_IPV6 +/** + * @ingroup netif_ip6 + * Change an IPv6 address of a network interface + * + * @param netif the network interface to change + * @param addr_idx index of the IPv6 address + * @param addr6 the new IPv6 address + * + * @note call netif_ip6_addr_set_state() to set the address valid/temptative + */ +void +netif_ip6_addr_set(struct netif *netif, s8_t addr_idx, const ip6_addr_t *addr6) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ASSERT("netif_ip6_addr_set: invalid netif", netif != NULL); + LWIP_ASSERT("netif_ip6_addr_set: invalid addr6", addr6 != NULL); + + netif_ip6_addr_set_parts(netif, addr_idx, addr6->addr[0], addr6->addr[1], + addr6->addr[2], addr6->addr[3]); +} + +/* + * Change an IPv6 address of a network interface (internal version taking 4 * u32_t) + * + * @param netif the network interface to change + * @param addr_idx index of the IPv6 address + * @param i0 word0 of the new IPv6 address + * @param i1 word1 of the new IPv6 address + * @param i2 word2 of the new IPv6 address + * @param i3 word3 of the new IPv6 address + */ +void +netif_ip6_addr_set_parts(struct netif *netif, s8_t addr_idx, u32_t i0, u32_t i1, u32_t i2, u32_t i3) +{ + ip_addr_t old_addr; + ip_addr_t new_ipaddr; + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("netif != NULL", netif != NULL); + LWIP_ASSERT("invalid index", addr_idx < LWIP_IPV6_NUM_ADDRESSES); + + ip6_addr_copy(*ip_2_ip6(&old_addr), *netif_ip6_addr(netif, addr_idx)); + IP_SET_TYPE_VAL(old_addr, IPADDR_TYPE_V6); + + /* address is actually being changed? */ + if ((ip_2_ip6(&old_addr)->addr[0] != i0) || (ip_2_ip6(&old_addr)->addr[1] != i1) || + (ip_2_ip6(&old_addr)->addr[2] != i2) || (ip_2_ip6(&old_addr)->addr[3] != i3)) { + LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_STATE, ("netif_ip6_addr_set: netif address being changed\n")); + + IP_ADDR6(&new_ipaddr, i0, i1, i2, i3); + ip6_addr_assign_zone(ip_2_ip6(&new_ipaddr), IP6_UNICAST, netif); + + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, addr_idx))) { + netif_do_ip_addr_changed(netif_ip_addr6(netif, addr_idx), &new_ipaddr); + } + /* @todo: remove/readd mib2 ip6 entries? */ + + ip_addr_copy(netif->ip6_addr[addr_idx], new_ipaddr); + + if (ip6_addr_isvalid(netif_ip6_addr_state(netif, addr_idx))) { + netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV6); + NETIF_STATUS_CALLBACK(netif); + } + +#if LWIP_NETIF_EXT_STATUS_CALLBACK + { + netif_ext_callback_args_t args; + args.ipv6_set.addr_index = addr_idx; + args.ipv6_set.old_address = &old_addr; + netif_invoke_ext_callback(netif, LWIP_NSC_IPV6_SET, &args); + } +#endif + } + + LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("netif: IPv6 address %d of interface %c%c set to %s/0x%"X8_F"\n", + addr_idx, netif->name[0], netif->name[1], ip6addr_ntoa(netif_ip6_addr(netif, addr_idx)), + netif_ip6_addr_state(netif, addr_idx))); +} + +/** + * @ingroup netif_ip6 + * Change the state of an IPv6 address of a network interface + * (INVALID, TEMPTATIVE, PREFERRED, DEPRECATED, where TEMPTATIVE + * includes the number of checks done, see ip6_addr.h) + * + * @param netif the network interface to change + * @param addr_idx index of the IPv6 address + * @param state the new IPv6 address state + */ +void +netif_ip6_addr_set_state(struct netif *netif, s8_t addr_idx, u8_t state) +{ + u8_t old_state; + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("netif != NULL", netif != NULL); + LWIP_ASSERT("invalid index", addr_idx < LWIP_IPV6_NUM_ADDRESSES); + + old_state = netif_ip6_addr_state(netif, addr_idx); + /* state is actually being changed? */ + if (old_state != state) { + u8_t old_valid = old_state & IP6_ADDR_VALID; + u8_t new_valid = state & IP6_ADDR_VALID; + LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_STATE, ("netif_ip6_addr_set_state: netif address state being changed\n")); + +#if LWIP_IPV6_MLD + /* Reevaluate solicited-node multicast group membership. */ + if (netif->flags & NETIF_FLAG_MLD6) { + nd6_adjust_mld_membership(netif, addr_idx, state); + } +#endif /* LWIP_IPV6_MLD */ + + if (old_valid && !new_valid) { + /* address about to be removed by setting invalid */ + netif_do_ip_addr_changed(netif_ip_addr6(netif, addr_idx), NULL); + /* @todo: remove mib2 ip6 entries? */ + } + netif->ip6_addr_state[addr_idx] = state; + + if (!old_valid && new_valid) { + /* address added by setting valid */ + /* This is a good moment to check that the address is properly zoned. */ + IP6_ADDR_ZONECHECK_NETIF(netif_ip6_addr(netif, addr_idx), netif); + /* @todo: add mib2 ip6 entries? */ + netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV6); + } + if ((old_state & ~IP6_ADDR_TENTATIVE_COUNT_MASK) != + (state & ~IP6_ADDR_TENTATIVE_COUNT_MASK)) { + /* address state has changed -> call the callback function */ + NETIF_STATUS_CALLBACK(netif); + } + +#if LWIP_NETIF_EXT_STATUS_CALLBACK + { + netif_ext_callback_args_t args; + args.ipv6_addr_state_changed.addr_index = addr_idx; + args.ipv6_addr_state_changed.old_state = old_state; + args.ipv6_addr_state_changed.address = netif_ip_addr6(netif, addr_idx); + netif_invoke_ext_callback(netif, LWIP_NSC_IPV6_ADDR_STATE_CHANGED, &args); + } +#endif + } + LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("netif: IPv6 address %d of interface %c%c set to %s/0x%"X8_F"\n", + addr_idx, netif->name[0], netif->name[1], ip6addr_ntoa(netif_ip6_addr(netif, addr_idx)), + netif_ip6_addr_state(netif, addr_idx))); +} + +/** + * Checks if a specific local address is present on the netif and returns its + * index. Depending on its state, it may or may not be assigned to the + * interface (as per RFC terminology). + * + * The given address may or may not be zoned (i.e., have a zone index other + * than IP6_NO_ZONE). If the address is zoned, it must have the correct zone + * for the given netif, or no match will be found. + * + * @param netif the netif to check + * @param ip6addr the IPv6 address to find + * @return >= 0: address found, this is its index + * -1: address not found on this netif + */ +s8_t +netif_get_ip6_addr_match(struct netif *netif, const ip6_addr_t *ip6addr) +{ + s8_t i; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ASSERT("netif_get_ip6_addr_match: invalid netif", netif != NULL); + LWIP_ASSERT("netif_get_ip6_addr_match: invalid ip6addr", ip6addr != NULL); + +#if LWIP_IPV6_SCOPES + if (ip6_addr_has_zone(ip6addr) && !ip6_addr_test_zone(ip6addr, netif)) { + return -1; /* wrong zone, no match */ + } +#endif /* LWIP_IPV6_SCOPES */ + + for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (!ip6_addr_isinvalid(netif_ip6_addr_state(netif, i)) && + ip6_addr_zoneless_eq(netif_ip6_addr(netif, i), ip6addr)) { + return i; + } + } + return -1; +} + +/** + * @ingroup netif_ip6 + * Create a link-local IPv6 address on a netif (stored in slot 0) + * + * @param netif the netif to create the address on + * @param from_mac_48bit if != 0, assume hwadr is a 48-bit MAC address (std conversion) + * if == 0, use hwaddr directly as interface ID + */ +void +netif_create_ip6_linklocal_address(struct netif *netif, u8_t from_mac_48bit) +{ + u8_t i, addr_index; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ASSERT("netif_create_ip6_linklocal_address: invalid netif", netif != NULL); + + /* Link-local prefix. */ + ip_2_ip6(&netif->ip6_addr[0])->addr[0] = PP_HTONL(0xfe800000ul); + ip_2_ip6(&netif->ip6_addr[0])->addr[1] = 0; + + /* Generate interface ID. */ + if (from_mac_48bit) { + /* Assume hwaddr is a 48-bit IEEE 802 MAC. Convert to EUI-64 address. Complement Group bit. */ + ip_2_ip6(&netif->ip6_addr[0])->addr[2] = lwip_htonl((((u32_t)(netif->hwaddr[0] ^ 0x02)) << 24) | + ((u32_t)(netif->hwaddr[1]) << 16) | + ((u32_t)(netif->hwaddr[2]) << 8) | + (0xff)); + ip_2_ip6(&netif->ip6_addr[0])->addr[3] = lwip_htonl((u32_t)(0xfeul << 24) | + ((u32_t)(netif->hwaddr[3]) << 16) | + ((u32_t)(netif->hwaddr[4]) << 8) | + (netif->hwaddr[5])); + } else { + /* Use hwaddr directly as interface ID. */ + ip_2_ip6(&netif->ip6_addr[0])->addr[2] = 0; + ip_2_ip6(&netif->ip6_addr[0])->addr[3] = 0; + + addr_index = 3; + for (i = 0; (i < 8) && (i < netif->hwaddr_len); i++) { + if (i == 4) { + addr_index--; + } + ip_2_ip6(&netif->ip6_addr[0])->addr[addr_index] |= lwip_htonl(((u32_t)(netif->hwaddr[netif->hwaddr_len - i - 1])) << (8 * (i & 0x03))); + } + } + + /* Set a link-local zone. Even though the zone is implied by the owning + * netif, setting the zone anyway has two important conceptual advantages: + * 1) it avoids the need for a ton of exceptions in internal code, allowing + * e.g. ip6_addr_eq() to be used on local addresses; + * 2) the properly zoned address is visible externally, e.g. when any outside + * code enumerates available addresses or uses one to bind a socket. + * Any external code unaware of address scoping is likely to just ignore the + * zone field, so this should not create any compatibility problems. */ + ip6_addr_assign_zone(ip_2_ip6(&netif->ip6_addr[0]), IP6_UNICAST, netif); + + /* Set address state. */ +#if LWIP_IPV6_DUP_DETECT_ATTEMPTS + /* Will perform duplicate address detection (DAD). */ + netif_ip6_addr_set_state(netif, 0, IP6_ADDR_TENTATIVE); +#else + /* Consider address valid. */ + netif_ip6_addr_set_state(netif, 0, IP6_ADDR_PREFERRED); +#endif /* LWIP_IPV6_AUTOCONFIG */ +} + +/** + * @ingroup netif_ip6 + * This function allows for the easy addition of a new IPv6 address to an interface. + * It takes care of finding an empty slot and then sets the address tentative + * (to make sure that all the subsequent processing happens). + * + * @param netif netif to add the address on + * @param ip6addr address to add + * @param chosen_idx if != NULL, the chosen IPv6 address index will be stored here + */ +err_t +netif_add_ip6_address(struct netif *netif, const ip6_addr_t *ip6addr, s8_t *chosen_idx) +{ + s8_t i; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ASSERT("netif_add_ip6_address: invalid netif", netif != NULL); + LWIP_ASSERT("netif_add_ip6_address: invalid ip6addr", ip6addr != NULL); + + i = netif_get_ip6_addr_match(netif, ip6addr); + if (i >= 0) { + /* Address already added */ + if (chosen_idx != NULL) { + *chosen_idx = i; + } + return ERR_OK; + } + + /* Find a free slot. The first one is reserved for link-local addresses. */ + for (i = ip6_addr_islinklocal(ip6addr) ? 0 : 1; i < LWIP_IPV6_NUM_ADDRESSES; i++) { + if (ip6_addr_isinvalid(netif_ip6_addr_state(netif, i))) { + ip_addr_copy_from_ip6(netif->ip6_addr[i], *ip6addr); + ip6_addr_assign_zone(ip_2_ip6(&netif->ip6_addr[i]), IP6_UNICAST, netif); + netif_ip6_addr_set_state(netif, i, IP6_ADDR_TENTATIVE); + if (chosen_idx != NULL) { + *chosen_idx = i; + } + return ERR_OK; + } + } + + if (chosen_idx != NULL) { + *chosen_idx = -1; + } + return ERR_VAL; +} + +/** Dummy IPv6 output function for netifs not supporting IPv6 + */ +static err_t +netif_null_output_ip6(struct netif *netif, struct pbuf *p, const ip6_addr_t *ipaddr) +{ + LWIP_UNUSED_ARG(netif); + LWIP_UNUSED_ARG(p); + LWIP_UNUSED_ARG(ipaddr); + + return ERR_IF; +} +#endif /* LWIP_IPV6 */ + +#if LWIP_IPV4 +/** Dummy IPv4 output function for netifs not supporting IPv4 + */ +static err_t +netif_null_output_ip4(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr) +{ + LWIP_UNUSED_ARG(netif); + LWIP_UNUSED_ARG(p); + LWIP_UNUSED_ARG(ipaddr); + + return ERR_IF; +} +#endif /* LWIP_IPV4 */ + +/** +* @ingroup netif +* Return the interface index for the netif with name +* or NETIF_NO_INDEX if not found/on error +* +* @param name the name of the netif +*/ +u8_t +netif_name_to_index(const char *name) +{ + struct netif *netif = netif_find(name); + if (netif != NULL) { + return netif_get_index(netif); + } + /* No name found, return invalid index */ + return NETIF_NO_INDEX; +} + +/** +* @ingroup netif +* Return the interface name for the netif matching index +* or NULL if not found/on error +* +* @param idx the interface index of the netif +* @param name char buffer of at least NETIF_NAMESIZE bytes +*/ +char * +netif_index_to_name(u8_t idx, char *name) +{ + struct netif *netif = netif_get_by_index(idx); + + if (netif != NULL) { + name[0] = netif->name[0]; + name[1] = netif->name[1]; + lwip_itoa(&name[2], NETIF_NAMESIZE - 2, netif_index_to_num(idx)); + return name; + } + return NULL; +} + +/** +* @ingroup netif +* Return the interface for the netif index +* +* @param idx index of netif to find +*/ +struct netif * +netif_get_by_index(u8_t idx) +{ + struct netif *netif; + + LWIP_ASSERT_CORE_LOCKED(); + + if (idx != NETIF_NO_INDEX) { + NETIF_FOREACH(netif) { + if (idx == netif_get_index(netif)) { + return netif; /* found! */ + } + } + } + + return NULL; +} + +/** + * @ingroup netif + * Find a network interface by searching for its name + * + * @param name the name of the netif (like netif->name) plus concatenated number + * in ascii representation (e.g. 'en0') + */ +struct netif * +netif_find(const char *name) +{ + struct netif *netif; + u8_t num; + + LWIP_ASSERT_CORE_LOCKED(); + + if (name == NULL) { + return NULL; + } + + num = (u8_t)atoi(&name[2]); + if (!num && (name[2] != '0')) { + /* this means atoi has failed */ + return NULL; + } + + NETIF_FOREACH(netif) { + if (num == netif->num && + name[0] == netif->name[0] && + name[1] == netif->name[1]) { + LWIP_DEBUGF(NETIF_DEBUG, ("netif_find: found %c%c\n", name[0], name[1])); + return netif; + } + } + LWIP_DEBUGF(NETIF_DEBUG, ("netif_find: didn't find %c%c\n", name[0], name[1])); + return NULL; +} + +#if LWIP_NETIF_EXT_STATUS_CALLBACK +/** + * @ingroup netif + * Add extended netif events listener + * @param callback pointer to listener structure + * @param fn callback function + */ +void +netif_add_ext_callback(netif_ext_callback_t *callback, netif_ext_callback_fn fn) +{ + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("callback must be != NULL", callback != NULL); + LWIP_ASSERT("fn must be != NULL", fn != NULL); + + callback->callback_fn = fn; + callback->next = ext_callback; + ext_callback = callback; +} + +/** + * @ingroup netif + * Remove extended netif events listener + * @param callback pointer to listener structure + */ +void +netif_remove_ext_callback(netif_ext_callback_t* callback) +{ + netif_ext_callback_t *last, *iter; + + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("callback must be != NULL", callback != NULL); + + if (ext_callback == NULL) { + return; + } + + if (callback == ext_callback) { + ext_callback = ext_callback->next; + } else { + last = ext_callback; + for (iter = ext_callback->next; iter != NULL; last = iter, iter = iter->next) { + if (iter == callback) { + LWIP_ASSERT("last != NULL", last != NULL); + last->next = callback->next; + callback->next = NULL; + return; + } + } + } +} + +/** + * Invoke extended netif status event + * @param netif netif that is affected by change + * @param reason change reason + * @param args depends on reason, see reason description + */ +void +netif_invoke_ext_callback(struct netif *netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t *args) +{ + netif_ext_callback_t *callback = ext_callback; + + LWIP_ASSERT("netif must be != NULL", netif != NULL); + + while (callback != NULL) { + callback->callback_fn(netif, reason, args); + callback = callback->next; + } +} +#endif /* LWIP_NETIF_EXT_STATUS_CALLBACK */ diff --git a/middleware/lwip/src/core/pbuf.c b/middleware/lwip/src/core/pbuf.c new file mode 100644 index 0000000..4037842 --- /dev/null +++ b/middleware/lwip/src/core/pbuf.c @@ -0,0 +1,1543 @@ +/** + * @file + * Packet buffer management + */ + +/** + * @defgroup pbuf Packet buffers (PBUF) + * @ingroup infrastructure + * + * Packets are built from the pbuf data structure. It supports dynamic + * memory allocation for packet contents or can reference externally + * managed packet contents both in RAM and ROM. Quick allocation for + * incoming packets is provided through pools with fixed sized pbufs. + * + * A packet may span over multiple pbufs, chained as a singly linked + * list. This is called a "pbuf chain". + * + * Multiple packets may be queued, also using this singly linked list. + * This is called a "packet queue". + * + * So, a packet queue consists of one or more pbuf chains, each of + * which consist of one or more pbufs. CURRENTLY, PACKET QUEUES ARE + * NOT SUPPORTED!!! Use helper structs to queue multiple packets. + * + * The differences between a pbuf chain and a packet queue are very + * precise but subtle. + * + * The last pbuf of a packet has a ->tot_len field that equals the + * ->len field. It can be found by traversing the list. If the last + * pbuf of a packet has a ->next field other than NULL, more packets + * are on the queue. + * + * Therefore, looping through a pbuf of a single packet, has an + * loop end condition (tot_len == p->len), NOT (next == NULL). + * + * Example of custom pbuf usage: @ref zerocopyrx + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#include "lwip/pbuf.h" +#include "lwip/stats.h" +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/memp.h" +#include "lwip/sys.h" +#include "lwip/netif.h" +#if LWIP_TCP && TCP_QUEUE_OOSEQ +#include "lwip/priv/tcp_priv.h" +#endif +#if LWIP_CHECKSUM_ON_COPY +#include "lwip/inet_chksum.h" +#endif + +#include + +#define SIZEOF_STRUCT_PBUF LWIP_MEM_ALIGN_SIZE(sizeof(struct pbuf)) +/* Since the pool is created in memp, PBUF_POOL_BUFSIZE will be automatically + aligned there. Therefore, PBUF_POOL_BUFSIZE_ALIGNED can be used here. */ +#define PBUF_POOL_BUFSIZE_ALIGNED LWIP_MEM_ALIGN_SIZE(PBUF_POOL_BUFSIZE) + +static const struct pbuf * +pbuf_skip_const(const struct pbuf *in, u16_t in_offset, u16_t *out_offset); + +#if !LWIP_TCP || !TCP_QUEUE_OOSEQ || !PBUF_POOL_FREE_OOSEQ +#define PBUF_POOL_IS_EMPTY() +#else /* !LWIP_TCP || !TCP_QUEUE_OOSEQ || !PBUF_POOL_FREE_OOSEQ */ + +#if !NO_SYS +#ifndef PBUF_POOL_FREE_OOSEQ_QUEUE_CALL +#include "lwip/tcpip.h" +#define PBUF_POOL_FREE_OOSEQ_QUEUE_CALL() do { \ + if (tcpip_try_callback(pbuf_free_ooseq_callback, NULL) != ERR_OK) { \ + SYS_ARCH_PROTECT(old_level); \ + pbuf_free_ooseq_pending = 0; \ + SYS_ARCH_UNPROTECT(old_level); \ + } } while(0) +#endif /* PBUF_POOL_FREE_OOSEQ_QUEUE_CALL */ +#endif /* !NO_SYS */ + +volatile u8_t pbuf_free_ooseq_pending; +#define PBUF_POOL_IS_EMPTY() pbuf_pool_is_empty() + +/** + * Attempt to reclaim some memory from queued out-of-sequence TCP segments + * if we run out of pool pbufs. It's better to give priority to new packets + * if we're running out. + * + * This must be done in the correct thread context therefore this function + * can only be used with NO_SYS=0 and through tcpip_callback. + */ +#if !NO_SYS +static +#endif /* !NO_SYS */ +void +pbuf_free_ooseq(void) +{ + struct tcp_pcb *pcb; + SYS_ARCH_SET(pbuf_free_ooseq_pending, 0); + + for (pcb = tcp_active_pcbs; NULL != pcb; pcb = pcb->next) { + if (pcb->ooseq != NULL) { + /** Free the ooseq pbufs of one PCB only */ + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_free_ooseq: freeing out-of-sequence pbufs\n")); + tcp_free_ooseq(pcb); + return; + } + } +} + +#if !NO_SYS +/** + * Just a callback function for tcpip_callback() that calls pbuf_free_ooseq(). + */ +static void +pbuf_free_ooseq_callback(void *arg) +{ + LWIP_UNUSED_ARG(arg); + pbuf_free_ooseq(); +} +#endif /* !NO_SYS */ + +/** Queue a call to pbuf_free_ooseq if not already queued. */ +static void +pbuf_pool_is_empty(void) +{ +#ifndef PBUF_POOL_FREE_OOSEQ_QUEUE_CALL + SYS_ARCH_SET(pbuf_free_ooseq_pending, 1); +#else /* PBUF_POOL_FREE_OOSEQ_QUEUE_CALL */ + u8_t queued; + SYS_ARCH_DECL_PROTECT(old_level); + SYS_ARCH_PROTECT(old_level); + queued = pbuf_free_ooseq_pending; + pbuf_free_ooseq_pending = 1; + SYS_ARCH_UNPROTECT(old_level); + + if (!queued) { + /* queue a call to pbuf_free_ooseq if not already queued */ + PBUF_POOL_FREE_OOSEQ_QUEUE_CALL(); + } +#endif /* PBUF_POOL_FREE_OOSEQ_QUEUE_CALL */ +} +#endif /* !LWIP_TCP || !TCP_QUEUE_OOSEQ || !PBUF_POOL_FREE_OOSEQ */ + +/* Initialize members of struct pbuf after allocation */ +static void +pbuf_init_alloced_pbuf(struct pbuf *p, void *payload, u16_t tot_len, u16_t len, pbuf_type type, u8_t flags) +{ + p->next = NULL; + p->payload = payload; + p->tot_len = tot_len; + p->len = len; + p->type_internal = (u8_t)type; + p->flags = flags; + p->ref = 1; + p->if_idx = NETIF_NO_INDEX; +} + +/** + * @ingroup pbuf + * Allocates a pbuf of the given type (possibly a chain for PBUF_POOL type). + * + * The actual memory allocated for the pbuf is determined by the + * layer at which the pbuf is allocated and the requested size + * (from the size parameter). + * + * @param layer header size + * @param length size of the pbuf's payload + * @param type this parameter decides how and where the pbuf + * should be allocated as follows: + * + * - PBUF_RAM: buffer memory for pbuf is allocated as one large + * chunk. This includes protocol headers as well. + * - PBUF_ROM: no buffer memory is allocated for the pbuf, even for + * protocol headers. Additional headers must be prepended + * by allocating another pbuf and chain in to the front of + * the ROM pbuf. It is assumed that the memory used is really + * similar to ROM in that it is immutable and will not be + * changed. Memory which is dynamic should generally not + * be attached to PBUF_ROM pbufs. Use PBUF_REF instead. + * - PBUF_REF: no buffer memory is allocated for the pbuf, even for + * protocol headers. It is assumed that the pbuf is only + * being used in a single thread. If the pbuf gets queued, + * then pbuf_take should be called to copy the buffer. + * - PBUF_POOL: the pbuf is allocated as a pbuf chain, with pbufs from + * the pbuf pool that is allocated during pbuf_init(). + * + * @return the allocated pbuf. If multiple pbufs where allocated, this + * is the first pbuf of a pbuf chain. + */ +struct pbuf * +pbuf_alloc(pbuf_layer layer, u16_t length, pbuf_type type) +{ + struct pbuf *p; + u16_t offset = (u16_t)layer; + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_alloc(length=%"U16_F")\n", length)); + + switch (type) { + case PBUF_REF: /* fall through */ + case PBUF_ROM: + p = pbuf_alloc_reference(NULL, length, type); + break; + case PBUF_POOL: { + struct pbuf *q, *last; + u16_t rem_len; /* remaining length */ + p = NULL; + last = NULL; + rem_len = length; + do { + u16_t qlen; + q = (struct pbuf *)memp_malloc(MEMP_PBUF_POOL); + if (q == NULL) { + PBUF_POOL_IS_EMPTY(); + /* free chain so far allocated */ + if (p) { + pbuf_free(p); + } + /* bail out unsuccessfully */ + return NULL; + } + qlen = LWIP_MIN(rem_len, (u16_t)(PBUF_POOL_BUFSIZE_ALIGNED - LWIP_MEM_ALIGN_SIZE(offset))); + pbuf_init_alloced_pbuf(q, LWIP_MEM_ALIGN((void *)((u8_t *)q + SIZEOF_STRUCT_PBUF + offset)), + rem_len, qlen, type, 0); + LWIP_ASSERT("pbuf_alloc: pbuf q->payload properly aligned", + ((mem_ptr_t)q->payload % MEM_ALIGNMENT) == 0); + LWIP_ASSERT("PBUF_POOL_BUFSIZE must be bigger than MEM_ALIGNMENT", + (PBUF_POOL_BUFSIZE_ALIGNED - LWIP_MEM_ALIGN_SIZE(offset)) > 0 ); + if (p == NULL) { + /* allocated head of pbuf chain (into p) */ + p = q; + } else { + /* make previous pbuf point to this pbuf */ + last->next = q; + } + last = q; + rem_len = (u16_t)(rem_len - qlen); + offset = 0; + } while (rem_len > 0); + break; + } + case PBUF_RAM: { + u16_t payload_len = (u16_t)(LWIP_MEM_ALIGN_SIZE(offset) + LWIP_MEM_ALIGN_SIZE(length)); + mem_size_t alloc_len = (mem_size_t)(LWIP_MEM_ALIGN_SIZE(SIZEOF_STRUCT_PBUF) + payload_len); + + /* bug #50040: Check for integer overflow when calculating alloc_len */ + if ((payload_len < LWIP_MEM_ALIGN_SIZE(length)) || + (alloc_len < LWIP_MEM_ALIGN_SIZE(length))) { + return NULL; + } + + /* If pbuf is to be allocated in RAM, allocate memory for it. */ + p = (struct pbuf *)mem_malloc(alloc_len); + if (p == NULL) { + return NULL; + } + pbuf_init_alloced_pbuf(p, LWIP_MEM_ALIGN((void *)((u8_t *)p + SIZEOF_STRUCT_PBUF + offset)), + length, length, type, 0); + LWIP_ASSERT("pbuf_alloc: pbuf->payload properly aligned", + ((mem_ptr_t)p->payload % MEM_ALIGNMENT) == 0); + break; + } + default: + LWIP_ASSERT("pbuf_alloc: erroneous type", 0); + return NULL; + } + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_alloc(length=%"U16_F") == %p\n", length, (void *)p)); + return p; +} + +/** + * @ingroup pbuf + * Allocates a pbuf for referenced data. + * Referenced data can be volatile (PBUF_REF) or long-lived (PBUF_ROM). + * + * The actual memory allocated for the pbuf is determined by the + * layer at which the pbuf is allocated and the requested size + * (from the size parameter). + * + * @param payload referenced payload + * @param length size of the pbuf's payload + * @param type this parameter decides how and where the pbuf + * should be allocated as follows: + * + * - PBUF_ROM: It is assumed that the memory used is really + * similar to ROM in that it is immutable and will not be + * changed. Memory which is dynamic should generally not + * be attached to PBUF_ROM pbufs. Use PBUF_REF instead. + * - PBUF_REF: It is assumed that the pbuf is only + * being used in a single thread. If the pbuf gets queued, + * then pbuf_take should be called to copy the buffer. + * + * @return the allocated pbuf. + */ +struct pbuf * +pbuf_alloc_reference(void *payload, u16_t length, pbuf_type type) +{ + struct pbuf *p; + LWIP_ASSERT("invalid pbuf_type", (type == PBUF_REF) || (type == PBUF_ROM)); + /* only allocate memory for the pbuf structure */ + p = (struct pbuf *)memp_malloc(MEMP_PBUF); + if (p == NULL) { + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("pbuf_alloc_reference: Could not allocate MEMP_PBUF for PBUF_%s.\n", + (type == PBUF_ROM) ? "ROM" : "REF")); + return NULL; + } + pbuf_init_alloced_pbuf(p, payload, length, length, type, 0); + return p; +} + + +#if LWIP_SUPPORT_CUSTOM_PBUF +/** + * @ingroup pbuf + * Initialize a custom pbuf (already allocated). + * Example of custom pbuf usage: @ref zerocopyrx + * + * @param l header size + * @param length size of the pbuf's payload + * @param type type of the pbuf (only used to treat the pbuf accordingly, as + * this function allocates no memory) + * @param p pointer to the custom pbuf to initialize (already allocated) + * @param payload_mem pointer to the buffer that is used for payload and headers, + * must be at least big enough to hold 'length' plus the header size, + * may be NULL if set later. + * ATTENTION: The caller is responsible for correct alignment of this buffer!! + * @param payload_mem_len the size of the 'payload_mem' buffer, must be at least + * big enough to hold 'length' plus the header size + */ +struct pbuf * +pbuf_alloced_custom(pbuf_layer l, u16_t length, pbuf_type type, struct pbuf_custom *p, + void *payload_mem, u16_t payload_mem_len) +{ + u16_t offset = (u16_t)l; + void *payload; + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_alloced_custom(length=%"U16_F")\n", length)); + + if (LWIP_MEM_ALIGN_SIZE(offset) + length > payload_mem_len) { + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_LEVEL_WARNING, ("pbuf_alloced_custom(length=%"U16_F") buffer too short\n", length)); + return NULL; + } + + if (payload_mem != NULL) { + payload = (u8_t *)payload_mem + LWIP_MEM_ALIGN_SIZE(offset); + } else { + payload = NULL; + } + pbuf_init_alloced_pbuf(&p->pbuf, payload, length, length, type, PBUF_FLAG_IS_CUSTOM); + return &p->pbuf; +} +#endif /* LWIP_SUPPORT_CUSTOM_PBUF */ + +/** + * @ingroup pbuf + * Shrink a pbuf chain to a desired length. + * + * @param p pbuf to shrink. + * @param new_len desired new length of pbuf chain + * + * Depending on the desired length, the first few pbufs in a chain might + * be skipped and left unchanged. The new last pbuf in the chain will be + * resized, and any remaining pbufs will be freed. + * + * @note If the pbuf is ROM/REF, only the ->tot_len and ->len fields are adjusted. + * @note May not be called on a packet queue. + * + * @note Despite its name, pbuf_realloc cannot grow the size of a pbuf (chain). + */ +void +pbuf_realloc(struct pbuf *p, u16_t new_len) +{ + struct pbuf *q; + u16_t rem_len; /* remaining length */ + u16_t shrink; + + LWIP_ASSERT("pbuf_realloc: p != NULL", p != NULL); + + /* desired length larger than current length? */ + if (new_len >= p->tot_len) { + /* enlarging not yet supported */ + return; + } + + /* the pbuf chain grows by (new_len - p->tot_len) bytes + * (which may be negative in case of shrinking) */ + shrink = (u16_t)(p->tot_len - new_len); + + /* first, step over any pbufs that should remain in the chain */ + rem_len = new_len; + q = p; + /* should this pbuf be kept? */ + while (rem_len > q->len) { + /* decrease remaining length by pbuf length */ + rem_len = (u16_t)(rem_len - q->len); + /* decrease total length indicator */ + q->tot_len = (u16_t)(q->tot_len - shrink); + /* proceed to next pbuf in chain */ + q = q->next; + LWIP_ASSERT("pbuf_realloc: q != NULL", q != NULL); + } + /* we have now reached the new last pbuf (in q) */ + /* rem_len == desired length for pbuf q */ + + /* shrink allocated memory for PBUF_RAM */ + /* (other types merely adjust their length fields */ + if (pbuf_match_allocsrc(q, PBUF_TYPE_ALLOC_SRC_MASK_STD_HEAP) && (rem_len != q->len) +#if LWIP_SUPPORT_CUSTOM_PBUF + && ((q->flags & PBUF_FLAG_IS_CUSTOM) == 0) +#endif /* LWIP_SUPPORT_CUSTOM_PBUF */ + ) { + /* reallocate and adjust the length of the pbuf that will be split */ + q = (struct pbuf *)mem_trim(q, (mem_size_t)(((u8_t *)q->payload - (u8_t *)q) + rem_len)); + LWIP_ASSERT("mem_trim returned q == NULL", q != NULL); + } + /* adjust length fields for new last pbuf */ + q->len = rem_len; + q->tot_len = q->len; + + /* any remaining pbufs in chain? */ + if (q->next != NULL) { + /* free remaining pbufs in chain */ + pbuf_free(q->next); + } + /* q is last packet in chain */ + q->next = NULL; + +} + +/** + * Adjusts the payload pointer to reveal headers in the payload. + * @see pbuf_add_header. + * + * @param p pbuf to change the header size. + * @param header_size_increment Number of bytes to increment header size. + * @param force Allow 'header_size_increment > 0' for PBUF_REF/PBUF_ROM types + * + * @return non-zero on failure, zero on success. + * + */ +static u8_t +pbuf_add_header_impl(struct pbuf *p, size_t header_size_increment, u8_t force) +{ + u16_t type_internal; + void *payload; + u16_t increment_magnitude; + + LWIP_ASSERT("p != NULL", p != NULL); + if ((p == NULL) || (header_size_increment > 0xFFFF)) { + return 1; + } + if (header_size_increment == 0) { + return 0; + } + + increment_magnitude = (u16_t)header_size_increment; + /* Do not allow tot_len to wrap as a result. */ + if ((u16_t)(increment_magnitude + p->tot_len) < increment_magnitude) { + return 1; + } + + type_internal = p->type_internal; + + /* pbuf types containing payloads? */ + if (type_internal & PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS) { + /* set new payload pointer */ + payload = (u8_t *)p->payload - header_size_increment; + /* boundary check fails? */ + if ((u8_t *)payload < (u8_t *)p + SIZEOF_STRUCT_PBUF) { + LWIP_DEBUGF( PBUF_DEBUG | LWIP_DBG_TRACE, + ("pbuf_add_header: failed as %p < %p (not enough space for new header size)\n", + (void *)payload, (void *)((u8_t *)p + SIZEOF_STRUCT_PBUF))); + /* bail out unsuccessfully */ + return 1; + } + /* pbuf types referring to external payloads? */ + } else { + /* hide a header in the payload? */ + if (force) { + payload = (u8_t *)p->payload - header_size_increment; + } else { + /* cannot expand payload to front (yet!) + * bail out unsuccessfully */ + return 1; + } + } + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_add_header: old %p new %p (%"U16_F")\n", + (void *)p->payload, (void *)payload, increment_magnitude)); + + /* modify pbuf fields */ + p->payload = payload; + p->len = (u16_t)(p->len + increment_magnitude); + p->tot_len = (u16_t)(p->tot_len + increment_magnitude); + + + return 0; +} + +/** + * Adjusts the payload pointer to reveal headers in the payload. + * + * Adjusts the ->payload pointer so that space for a header + * appears in the pbuf payload. + * + * The ->payload, ->tot_len and ->len fields are adjusted. + * + * @param p pbuf to change the header size. + * @param header_size_increment Number of bytes to increment header size which + * increases the size of the pbuf. New space is on the front. + * If header_size_increment is 0, this function does nothing and returns successful. + * + * PBUF_ROM and PBUF_REF type buffers cannot have their sizes increased, so + * the call will fail. A check is made that the increase in header size does + * not move the payload pointer in front of the start of the buffer. + * + * @return non-zero on failure, zero on success. + * + */ +u8_t +pbuf_add_header(struct pbuf *p, size_t header_size_increment) +{ + return pbuf_add_header_impl(p, header_size_increment, 0); +} + +/** + * Same as @ref pbuf_add_header but does not check if 'header_size > 0' is allowed. + * This is used internally only, to allow PBUF_REF for RX. + */ +u8_t +pbuf_add_header_force(struct pbuf *p, size_t header_size_increment) +{ + return pbuf_add_header_impl(p, header_size_increment, 1); +} + +/** + * Adjusts the payload pointer to hide headers in the payload. + * + * Adjusts the ->payload pointer so that space for a header + * disappears in the pbuf payload. + * + * The ->payload, ->tot_len and ->len fields are adjusted. + * + * @param p pbuf to change the header size. + * @param header_size_decrement Number of bytes to decrement header size which + * decreases the size of the pbuf. + * If header_size_decrement is 0, this function does nothing and returns successful. + * @return non-zero on failure, zero on success. + * + */ +u8_t +pbuf_remove_header(struct pbuf *p, size_t header_size_decrement) +{ + void *payload; + u16_t increment_magnitude; + + LWIP_ASSERT("p != NULL", p != NULL); + if ((p == NULL) || (header_size_decrement > 0xFFFF)) { + return 1; + } + if (header_size_decrement == 0) { + return 0; + } + + increment_magnitude = (u16_t)header_size_decrement; + /* Check that we aren't going to move off the end of the pbuf */ + LWIP_ERROR("increment_magnitude <= p->len", (increment_magnitude <= p->len), return 1;); + + /* remember current payload pointer */ + payload = p->payload; + LWIP_UNUSED_ARG(payload); /* only used in LWIP_DEBUGF below */ + + /* increase payload pointer (guarded by length check above) */ + p->payload = (u8_t *)p->payload + header_size_decrement; + /* modify pbuf length fields */ + p->len = (u16_t)(p->len - increment_magnitude); + p->tot_len = (u16_t)(p->tot_len - increment_magnitude); + + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_remove_header: old %p new %p (%"U16_F")\n", + (void *)payload, (void *)p->payload, increment_magnitude)); + + return 0; +} + +static u8_t +pbuf_header_impl(struct pbuf *p, s16_t header_size_increment, u8_t force) +{ + if (header_size_increment < 0) { + return pbuf_remove_header(p, (size_t) - header_size_increment); + } else { + return pbuf_add_header_impl(p, (size_t)header_size_increment, force); + } +} + +/** + * Adjusts the payload pointer to hide or reveal headers in the payload. + * + * Adjusts the ->payload pointer so that space for a header + * (dis)appears in the pbuf payload. + * + * The ->payload, ->tot_len and ->len fields are adjusted. + * + * @param p pbuf to change the header size. + * @param header_size_increment Number of bytes to increment header size which + * increases the size of the pbuf. New space is on the front. + * (Using a negative value decreases the header size.) + * If header_size_increment is 0, this function does nothing and returns successful. + * + * PBUF_ROM and PBUF_REF type buffers cannot have their sizes increased, so + * the call will fail. A check is made that the increase in header size does + * not move the payload pointer in front of the start of the buffer. + * @return non-zero on failure, zero on success. + * + */ +u8_t +pbuf_header(struct pbuf *p, s16_t header_size_increment) +{ + return pbuf_header_impl(p, header_size_increment, 0); +} + +/** + * Same as pbuf_header but does not check if 'header_size > 0' is allowed. + * This is used internally only, to allow PBUF_REF for RX. + */ +u8_t +pbuf_header_force(struct pbuf *p, s16_t header_size_increment) +{ + return pbuf_header_impl(p, header_size_increment, 1); +} + +/** Similar to pbuf_header(-size) but de-refs header pbufs for (size >= p->len) + * + * @param q pbufs to operate on + * @param size The number of bytes to remove from the beginning of the pbuf list. + * While size >= p->len, pbufs are freed. + * ATTENTION: this is the opposite direction as @ref pbuf_header, but + * takes an u16_t not s16_t! + * @return the new head pbuf + */ +struct pbuf * +pbuf_free_header(struct pbuf *q, u16_t size) +{ + struct pbuf *p = q; + u16_t free_left = size; + while (free_left && p) { + if (free_left >= p->len) { + struct pbuf *f = p; + free_left = (u16_t)(free_left - p->len); + p = p->next; + f->next = 0; + pbuf_free(f); + } else { + pbuf_remove_header(p, free_left); + free_left = 0; + } + } + return p; +} + +/** + * @ingroup pbuf + * Dereference a pbuf chain or queue and deallocate any no-longer-used + * pbufs at the head of this chain or queue. + * + * Decrements the pbuf reference count. If it reaches zero, the pbuf is + * deallocated. + * + * For a pbuf chain, this is repeated for each pbuf in the chain, + * up to the first pbuf which has a non-zero reference count after + * decrementing. So, when all reference counts are one, the whole + * chain is free'd. + * + * @param p The pbuf (chain) to be dereferenced. + * + * @return the number of pbufs that were de-allocated + * from the head of the chain. + * + * @note MUST NOT be called on a packet queue (Not verified to work yet). + * @note the reference counter of a pbuf equals the number of pointers + * that refer to the pbuf (or into the pbuf). + * + * @internal examples: + * + * Assuming existing chains a->b->c with the following reference + * counts, calling pbuf_free(a) results in: + * + * 1->2->3 becomes ...1->3 + * 3->3->3 becomes 2->3->3 + * 1->1->2 becomes ......1 + * 2->1->1 becomes 1->1->1 + * 1->1->1 becomes ....... + * + */ +u8_t +pbuf_free(struct pbuf *p) +{ + u8_t alloc_src; + struct pbuf *q; + u8_t count; + + if (p == NULL) { + LWIP_ASSERT("p != NULL", p != NULL); + /* if assertions are disabled, proceed with debug output */ + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("pbuf_free(p == NULL) was called.\n")); + return 0; + } + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_free(%p)\n", (void *)p)); + + PERF_START; + + count = 0; + /* de-allocate all consecutive pbufs from the head of the chain that + * obtain a zero reference count after decrementing*/ + while (p != NULL) { + LWIP_PBUF_REF_T ref; + SYS_ARCH_DECL_PROTECT(old_level); + /* Since decrementing ref cannot be guaranteed to be a single machine operation + * we must protect it. We put the new ref into a local variable to prevent + * further protection. */ + SYS_ARCH_PROTECT(old_level); + /* all pbufs in a chain are referenced at least once */ + LWIP_ASSERT("pbuf_free: p->ref > 0", p->ref > 0); + /* decrease reference count (number of pointers to pbuf) */ + ref = --(p->ref); + SYS_ARCH_UNPROTECT(old_level); + /* this pbuf is no longer referenced to? */ + if (ref == 0) { + /* remember next pbuf in chain for next iteration */ + q = p->next; + LWIP_DEBUGF( PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_free: deallocating %p\n", (void *)p)); + alloc_src = pbuf_get_allocsrc(p); +#if LWIP_SUPPORT_CUSTOM_PBUF + /* is this a custom pbuf? */ + if ((p->flags & PBUF_FLAG_IS_CUSTOM) != 0) { + struct pbuf_custom *pc = (struct pbuf_custom *)p; + LWIP_ASSERT("pc->custom_free_function != NULL", pc->custom_free_function != NULL); + pc->custom_free_function(p); + } else +#endif /* LWIP_SUPPORT_CUSTOM_PBUF */ + { + /* is this a pbuf from the pool? */ + if (alloc_src == PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF_POOL) { + memp_free(MEMP_PBUF_POOL, p); + /* is this a ROM or RAM referencing pbuf? */ + } else if (alloc_src == PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF) { + memp_free(MEMP_PBUF, p); + /* type == PBUF_RAM */ + } else if (alloc_src == PBUF_TYPE_ALLOC_SRC_MASK_STD_HEAP) { + mem_free(p); + } else { + /* @todo: support freeing other types */ + LWIP_ASSERT("invalid pbuf type", 0); + } + } + count++; + /* proceed to next pbuf */ + p = q; + /* p->ref > 0, this pbuf is still referenced to */ + /* (and so the remaining pbufs in chain as well) */ + } else { + LWIP_DEBUGF( PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_free: %p has ref %"U16_F", ending here.\n", (void *)p, (u16_t)ref)); + /* stop walking through the chain */ + p = NULL; + } + } + PERF_STOP("pbuf_free"); + /* return number of de-allocated pbufs */ + return count; +} + +/** + * Count number of pbufs in a chain + * + * @param p first pbuf of chain + * @return the number of pbufs in a chain + */ +u16_t +pbuf_clen(const struct pbuf *p) +{ + u16_t len; + + len = 0; + while (p != NULL) { + ++len; + p = p->next; + } + return len; +} + +/** + * @ingroup pbuf + * Increment the reference count of the pbuf. + * + * @param p pbuf to increase reference counter of + * + */ +void +pbuf_ref(struct pbuf *p) +{ + /* pbuf given? */ + if (p != NULL) { + SYS_ARCH_SET(p->ref, (LWIP_PBUF_REF_T)(p->ref + 1)); + LWIP_ASSERT("pbuf ref overflow", p->ref > 0); + } +} + +/** + * @ingroup pbuf + * Concatenate two pbufs (each may be a pbuf chain) and take over + * the caller's reference of the tail pbuf. + * + * @note The caller MAY NOT reference the tail pbuf afterwards. + * Use pbuf_chain() for that purpose. + * + * This function explicitly does not check for tot_len overflow to prevent + * failing to queue too long pbufs. This can produce invalid pbufs, so + * handle with care! + * + * @see pbuf_chain() + */ +void +pbuf_cat(struct pbuf *h, struct pbuf *t) +{ + struct pbuf *p; + + LWIP_ERROR("(h != NULL) && (t != NULL) (programmer violates API)", + ((h != NULL) && (t != NULL)), return;); + + /* proceed to last pbuf of chain */ + for (p = h; p->next != NULL; p = p->next) { + /* add total length of second chain to all totals of first chain */ + p->tot_len = (u16_t)(p->tot_len + t->tot_len); + } + /* { p is last pbuf of first h chain, p->next == NULL } */ + LWIP_ASSERT("p->tot_len == p->len (of last pbuf in chain)", p->tot_len == p->len); + LWIP_ASSERT("p->next == NULL", p->next == NULL); + /* add total length of second chain to last pbuf total of first chain */ + p->tot_len = (u16_t)(p->tot_len + t->tot_len); + /* chain last pbuf of head (p) with first of tail (t) */ + p->next = t; + /* p->next now references t, but the caller will drop its reference to t, + * so netto there is no change to the reference count of t. + */ +} + +/** + * @ingroup pbuf + * Chain two pbufs (or pbuf chains) together. + * + * The caller MUST call pbuf_free(t) once it has stopped + * using it. Use pbuf_cat() instead if you no longer use t. + * + * @param h head pbuf (chain) + * @param t tail pbuf (chain) + * @note The pbufs MUST belong to the same packet. + * @note MAY NOT be called on a packet queue. + * + * The ->tot_len fields of all pbufs of the head chain are adjusted. + * The ->next field of the last pbuf of the head chain is adjusted. + * The ->ref field of the first pbuf of the tail chain is adjusted. + * + */ +void +pbuf_chain(struct pbuf *h, struct pbuf *t) +{ + pbuf_cat(h, t); + /* t is now referenced by h */ + pbuf_ref(t); + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_chain: %p references %p\n", (void *)h, (void *)t)); +} + +/** + * Dechains the first pbuf from its succeeding pbufs in the chain. + * + * Makes p->tot_len field equal to p->len. + * @param p pbuf to dechain + * @return remainder of the pbuf chain, or NULL if it was de-allocated. + * @note May not be called on a packet queue. + */ +struct pbuf * +pbuf_dechain(struct pbuf *p) +{ + struct pbuf *q; + u8_t tail_gone = 1; + /* tail */ + q = p->next; + /* pbuf has successor in chain? */ + if (q != NULL) { + /* assert tot_len invariant: (p->tot_len == p->len + (p->next? p->next->tot_len: 0) */ + LWIP_ASSERT("p->tot_len == p->len + q->tot_len", q->tot_len == p->tot_len - p->len); + /* enforce invariant if assertion is disabled */ + q->tot_len = (u16_t)(p->tot_len - p->len); + /* decouple pbuf from remainder */ + p->next = NULL; + /* total length of pbuf p is its own length only */ + p->tot_len = p->len; + /* q is no longer referenced by p, free it */ + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_dechain: unreferencing %p\n", (void *)q)); + tail_gone = pbuf_free(q); + if (tail_gone > 0) { + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, + ("pbuf_dechain: deallocated %p (as it is no longer referenced)\n", (void *)q)); + } + /* return remaining tail or NULL if deallocated */ + } + /* assert tot_len invariant: (p->tot_len == p->len + (p->next? p->next->tot_len: 0) */ + LWIP_ASSERT("p->tot_len == p->len", p->tot_len == p->len); + return ((tail_gone > 0) ? NULL : q); +} + +/** + * @ingroup pbuf + * Copy the contents of one packet buffer into another. + * + * @note Only one packet is copied, no packet queue! + * + * @param p_to pbuf destination of the copy + * @param p_from pbuf source of the copy + * + * @return ERR_OK if pbuf was copied + * ERR_ARG if one of the pbufs is NULL or p_to is not big + * enough to hold p_from + * ERR_VAL if any of the pbufs are part of a queue + */ +err_t +pbuf_copy(struct pbuf *p_to, const struct pbuf *p_from) +{ + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_copy(%p, %p)\n", + (const void *)p_to, (const void *)p_from)); + + LWIP_ERROR("pbuf_copy: invalid source", p_from != NULL, return ERR_ARG;); + return pbuf_copy_partial_pbuf(p_to, p_from, p_from->tot_len, 0); +} + +/** + * @ingroup pbuf + * Copy part or all of one packet buffer into another, to a specified offset. + * + * @note Only data in one packet is copied, no packet queue! + * @note Argument order is shared with pbuf_copy, but different than pbuf_copy_partial. + * + * @param p_to pbuf destination of the copy + * @param p_from pbuf source of the copy + * @param copy_len number of bytes to copy + * @param offset offset in destination pbuf where to copy to + * + * @return ERR_OK if copy_len bytes were copied + * ERR_ARG if one of the pbufs is NULL or p_from is shorter than copy_len + * or p_to is not big enough to hold copy_len at offset + * ERR_VAL if any of the pbufs are part of a queue + */ +err_t +pbuf_copy_partial_pbuf(struct pbuf *p_to, const struct pbuf *p_from, u16_t copy_len, u16_t offset) +{ + size_t offset_to = offset, offset_from = 0, len; + + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_copy_partial_pbuf(%p, %p, %"U16_F", %"U16_F")\n", + (const void *)p_to, (const void *)p_from, copy_len, offset)); + + /* is the copy_len in range? */ + LWIP_ERROR("pbuf_copy_partial_pbuf: copy_len bigger than source", ((p_from != NULL) && + (p_from->tot_len >= copy_len)), return ERR_ARG;); + /* is the target big enough to hold the source? */ + LWIP_ERROR("pbuf_copy_partial_pbuf: target not big enough", ((p_to != NULL) && + (p_to->tot_len >= (offset + copy_len))), return ERR_ARG;); + + /* iterate through pbuf chain */ + do { + /* copy one part of the original chain */ + if ((p_to->len - offset_to) >= (p_from->len - offset_from)) { + /* complete current p_from fits into current p_to */ + len = p_from->len - offset_from; + } else { + /* current p_from does not fit into current p_to */ + len = p_to->len - offset_to; + } + len = LWIP_MIN(copy_len, len); + MEMCPY((u8_t *)p_to->payload + offset_to, (u8_t *)p_from->payload + offset_from, len); + offset_to += len; + offset_from += len; + copy_len -= len; + LWIP_ASSERT("offset_to <= p_to->len", offset_to <= p_to->len); + LWIP_ASSERT("offset_from <= p_from->len", offset_from <= p_from->len); + if (offset_from >= p_from->len) { + /* on to next p_from (if any) */ + offset_from = 0; + p_from = p_from->next; + LWIP_ERROR("p_from != NULL", (p_from != NULL) || (copy_len == 0), return ERR_ARG;); + } + if (offset_to == p_to->len) { + /* on to next p_to (if any) */ + offset_to = 0; + p_to = p_to->next; + LWIP_ERROR("p_to != NULL", (p_to != NULL) || (copy_len == 0), return ERR_ARG;); + } + + if ((p_from != NULL) && (p_from->len == p_from->tot_len)) { + /* don't copy more than one packet! */ + LWIP_ERROR("pbuf_copy_partial_pbuf() does not allow packet queues!", + (p_from->next == NULL), return ERR_VAL;); + } + if ((p_to != NULL) && (p_to->len == p_to->tot_len)) { + /* don't copy more than one packet! */ + LWIP_ERROR("pbuf_copy_partial_pbuf() does not allow packet queues!", + (p_to->next == NULL), return ERR_VAL;); + } + } while (copy_len); + LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_copy_partial_pbuf: copy complete.\n")); + return ERR_OK; +} + +/** + * @ingroup pbuf + * Copy (part of) the contents of a packet buffer + * to an application supplied buffer. + * + * @param buf the pbuf from which to copy data + * @param dataptr the application supplied buffer + * @param len length of data to copy (dataptr must be big enough). No more + * than buf->tot_len will be copied, irrespective of len + * @param offset offset into the packet buffer from where to begin copying len bytes + * @return the number of bytes copied, or 0 on failure + */ +u16_t +pbuf_copy_partial(const struct pbuf *buf, void *dataptr, u16_t len, u16_t offset) +{ + const struct pbuf *p; + u16_t left = 0; + u16_t buf_copy_len; + u16_t copied_total = 0; + + LWIP_ERROR("pbuf_copy_partial: invalid buf", (buf != NULL), return 0;); + LWIP_ERROR("pbuf_copy_partial: invalid dataptr", (dataptr != NULL), return 0;); + + /* Note some systems use byte copy if dataptr or one of the pbuf payload pointers are unaligned. */ + for (p = buf; len != 0 && p != NULL; p = p->next) { + if ((offset != 0) && (offset >= p->len)) { + /* don't copy from this buffer -> on to the next */ + offset = (u16_t)(offset - p->len); + } else { + /* copy from this buffer. maybe only partially. */ + buf_copy_len = (u16_t)(p->len - offset); + if (buf_copy_len > len) { + buf_copy_len = len; + } + /* copy the necessary parts of the buffer */ + MEMCPY(&((char *)dataptr)[left], &((char *)p->payload)[offset], buf_copy_len); + copied_total = (u16_t)(copied_total + buf_copy_len); + left = (u16_t)(left + buf_copy_len); + len = (u16_t)(len - buf_copy_len); + offset = 0; + } + } + return copied_total; +} + +/** + * @ingroup pbuf + * Get part of a pbuf's payload as contiguous memory. The returned memory is + * either a pointer into the pbuf's payload or, if split over multiple pbufs, + * a copy into the user-supplied buffer. + * + * @param p the pbuf from which to copy data + * @param buffer the application supplied buffer + * @param bufsize size of the application supplied buffer + * @param len length of data to copy (dataptr must be big enough). No more + * than buf->tot_len will be copied, irrespective of len + * @param offset offset into the packet buffer from where to begin copying len bytes + * @return the number of bytes copied, or 0 on failure + */ +void * +pbuf_get_contiguous(const struct pbuf *p, void *buffer, size_t bufsize, u16_t len, u16_t offset) +{ + const struct pbuf *q; + u16_t out_offset; + + LWIP_ERROR("pbuf_get_contiguous: invalid buf", (p != NULL), return NULL;); + LWIP_ERROR("pbuf_get_contiguous: invalid dataptr", (buffer != NULL), return NULL;); + LWIP_ERROR("pbuf_get_contiguous: invalid dataptr", (bufsize >= len), return NULL;); + + q = pbuf_skip_const(p, offset, &out_offset); + if (q != NULL) { + if (q->len >= (out_offset + len)) { + /* all data in this pbuf, return zero-copy */ + return (u8_t *)q->payload + out_offset; + } + /* need to copy */ + if (pbuf_copy_partial(q, buffer, len, out_offset) != len) { + /* copying failed: pbuf is too short */ + return NULL; + } + return buffer; + } + /* pbuf is too short (offset does not fit in) */ + return NULL; +} + +#if LWIP_TCP && TCP_QUEUE_OOSEQ && LWIP_WND_SCALE +/** + * This method modifies a 'pbuf chain', so that its total length is + * smaller than 64K. The remainder of the original pbuf chain is stored + * in *rest. + * This function never creates new pbufs, but splits an existing chain + * in two parts. The tot_len of the modified packet queue will likely be + * smaller than 64K. + * 'packet queues' are not supported by this function. + * + * @param p the pbuf queue to be split + * @param rest pointer to store the remainder (after the first 64K) + */ +void pbuf_split_64k(struct pbuf *p, struct pbuf **rest) +{ + *rest = NULL; + if ((p != NULL) && (p->next != NULL)) { + u16_t tot_len_front = p->len; + struct pbuf *i = p; + struct pbuf *r = p->next; + + /* continue until the total length (summed up as u16_t) overflows */ + while ((r != NULL) && ((u16_t)(tot_len_front + r->len) >= tot_len_front)) { + tot_len_front = (u16_t)(tot_len_front + r->len); + i = r; + r = r->next; + } + /* i now points to last packet of the first segment. Set next + pointer to NULL */ + i->next = NULL; + + if (r != NULL) { + /* Update the tot_len field in the first part */ + for (i = p; i != NULL; i = i->next) { + i->tot_len = (u16_t)(i->tot_len - r->tot_len); + LWIP_ASSERT("tot_len/len mismatch in last pbuf", + (i->next != NULL) || (i->tot_len == i->len)); + } + if (p->flags & PBUF_FLAG_TCP_FIN) { + r->flags |= PBUF_FLAG_TCP_FIN; + } + + /* tot_len field in rest does not need modifications */ + /* reference counters do not need modifications */ + *rest = r; + } + } +} +#endif /* LWIP_TCP && TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + +/* Actual implementation of pbuf_skip() but returning const pointer... */ +static const struct pbuf * +pbuf_skip_const(const struct pbuf *in, u16_t in_offset, u16_t *out_offset) +{ + u16_t offset_left = in_offset; + const struct pbuf *q = in; + + /* get the correct pbuf */ + while ((q != NULL) && (q->len <= offset_left)) { + offset_left = (u16_t)(offset_left - q->len); + q = q->next; + } + if (out_offset != NULL) { + *out_offset = offset_left; + } + return q; +} + +/** + * @ingroup pbuf + * Skip a number of bytes at the start of a pbuf + * + * @param in input pbuf + * @param in_offset offset to skip + * @param out_offset resulting offset in the returned pbuf + * @return the pbuf in the queue where the offset is + */ +struct pbuf * +pbuf_skip(struct pbuf *in, u16_t in_offset, u16_t *out_offset) +{ + const struct pbuf *out = pbuf_skip_const(in, in_offset, out_offset); + return LWIP_CONST_CAST(struct pbuf *, out); +} + +/** + * @ingroup pbuf + * Copy application supplied data into a pbuf. + * This function can only be used to copy the equivalent of buf->tot_len data. + * + * @param buf pbuf to fill with data + * @param dataptr application supplied data buffer + * @param len length of the application supplied data buffer + * + * @return ERR_OK if successful, ERR_MEM if the pbuf is not big enough + */ +err_t +pbuf_take(struct pbuf *buf, const void *dataptr, u16_t len) +{ + struct pbuf *p; + size_t buf_copy_len; + size_t total_copy_len = len; + size_t copied_total = 0; + + LWIP_ERROR("pbuf_take: invalid buf", (buf != NULL), return ERR_ARG;); + LWIP_ERROR("pbuf_take: invalid dataptr", (dataptr != NULL), return ERR_ARG;); + LWIP_ERROR("pbuf_take: buf not large enough", (buf->tot_len >= len), return ERR_MEM;); + + if ((buf == NULL) || (dataptr == NULL) || (buf->tot_len < len)) { + return ERR_ARG; + } + + /* Note some systems use byte copy if dataptr or one of the pbuf payload pointers are unaligned. */ + for (p = buf; total_copy_len != 0; p = p->next) { + LWIP_ASSERT("pbuf_take: invalid pbuf", p != NULL); + buf_copy_len = total_copy_len; + if (buf_copy_len > p->len) { + /* this pbuf cannot hold all remaining data */ + buf_copy_len = p->len; + } + /* copy the necessary parts of the buffer */ + MEMCPY(p->payload, &((const char *)dataptr)[copied_total], buf_copy_len); + total_copy_len -= buf_copy_len; + copied_total += buf_copy_len; + } + LWIP_ASSERT("did not copy all data", total_copy_len == 0 && copied_total == len); + return ERR_OK; +} + +/** + * @ingroup pbuf + * Same as pbuf_take() but puts data at an offset + * + * @param buf pbuf to fill with data + * @param dataptr application supplied data buffer + * @param len length of the application supplied data buffer + * @param offset offset in pbuf where to copy dataptr to + * + * @return ERR_OK if successful, ERR_MEM if the pbuf is not big enough + */ +err_t +pbuf_take_at(struct pbuf *buf, const void *dataptr, u16_t len, u16_t offset) +{ + u16_t target_offset; + struct pbuf *q = pbuf_skip(buf, offset, &target_offset); + + /* return requested data if pbuf is OK */ + if ((q != NULL) && (q->tot_len >= target_offset + len)) { + u16_t remaining_len = len; + const u8_t *src_ptr = (const u8_t *)dataptr; + /* copy the part that goes into the first pbuf */ + u16_t first_copy_len; + LWIP_ASSERT("check pbuf_skip result", target_offset < q->len); + first_copy_len = (u16_t)LWIP_MIN(q->len - target_offset, len); + MEMCPY(((u8_t *)q->payload) + target_offset, dataptr, first_copy_len); + remaining_len = (u16_t)(remaining_len - first_copy_len); + src_ptr += first_copy_len; + if (remaining_len > 0) { + return pbuf_take(q->next, src_ptr, remaining_len); + } + return ERR_OK; + } + return ERR_MEM; +} + +/** + * @ingroup pbuf + * Creates a single pbuf out of a queue of pbufs. + * + * @remark: Either the source pbuf 'p' is freed by this function or the original + * pbuf 'p' is returned, therefore the caller has to check the result! + * + * @param p the source pbuf + * @param layer pbuf_layer of the new pbuf + * + * @return a new, single pbuf (p->next is NULL) + * or the old pbuf if allocation fails + */ +struct pbuf * +pbuf_coalesce(struct pbuf *p, pbuf_layer layer) +{ + struct pbuf *q; + if (p->next == NULL) { + return p; + } + q = pbuf_clone(layer, PBUF_RAM, p); + if (q == NULL) { + /* @todo: what do we do now? */ + return p; + } + pbuf_free(p); + return q; +} + +/** + * @ingroup pbuf + * Allocates a new pbuf of same length (via pbuf_alloc()) and copies the source + * pbuf into this new pbuf (using pbuf_copy()). + * + * @param layer pbuf_layer of the new pbuf + * @param type this parameter decides how and where the pbuf should be allocated + * (@see pbuf_alloc()) + * @param p the source pbuf + * + * @return a new pbuf or NULL if allocation fails + */ +struct pbuf * +pbuf_clone(pbuf_layer layer, pbuf_type type, struct pbuf *p) +{ + struct pbuf *q; + err_t err; + q = pbuf_alloc(layer, p->tot_len, type); + if (q == NULL) { + return NULL; + } + err = pbuf_copy(q, p); + LWIP_UNUSED_ARG(err); /* in case of LWIP_NOASSERT */ + LWIP_ASSERT("pbuf_copy failed", err == ERR_OK); + return q; +} + +#if LWIP_CHECKSUM_ON_COPY +/** + * Copies data into a single pbuf (*not* into a pbuf queue!) and updates + * the checksum while copying + * + * @param p the pbuf to copy data into + * @param start_offset offset of p->payload where to copy the data to + * @param dataptr data to copy into the pbuf + * @param len length of data to copy into the pbuf + * @param chksum pointer to the checksum which is updated + * @return ERR_OK if successful, another error if the data does not fit + * within the (first) pbuf (no pbuf queues!) + */ +err_t +pbuf_fill_chksum(struct pbuf *p, u16_t start_offset, const void *dataptr, + u16_t len, u16_t *chksum) +{ + u32_t acc; + u16_t copy_chksum; + char *dst_ptr; + LWIP_ASSERT("p != NULL", p != NULL); + LWIP_ASSERT("dataptr != NULL", dataptr != NULL); + LWIP_ASSERT("chksum != NULL", chksum != NULL); + LWIP_ASSERT("len != 0", len != 0); + + if ((start_offset >= p->len) || (start_offset + len > p->len)) { + return ERR_ARG; + } + + dst_ptr = ((char *)p->payload) + start_offset; + copy_chksum = LWIP_CHKSUM_COPY(dst_ptr, dataptr, len); + if ((start_offset & 1) != 0) { + copy_chksum = SWAP_BYTES_IN_WORD(copy_chksum); + } + acc = *chksum; + acc += copy_chksum; + *chksum = FOLD_U32T(acc); + return ERR_OK; +} +#endif /* LWIP_CHECKSUM_ON_COPY */ + +/** + * @ingroup pbuf + * Get one byte from the specified position in a pbuf + * WARNING: returns zero for offset >= p->tot_len + * + * @param p pbuf to parse + * @param offset offset into p of the byte to return + * @return byte at an offset into p OR ZERO IF 'offset' >= p->tot_len + */ +u8_t +pbuf_get_at(const struct pbuf *p, u16_t offset) +{ + int ret = pbuf_try_get_at(p, offset); + if (ret >= 0) { + return (u8_t)ret; + } + return 0; +} + +/** + * @ingroup pbuf + * Get one byte from the specified position in a pbuf + * + * @param p pbuf to parse + * @param offset offset into p of the byte to return + * @return byte at an offset into p [0..0xFF] OR negative if 'offset' >= p->tot_len + */ +int +pbuf_try_get_at(const struct pbuf *p, u16_t offset) +{ + u16_t q_idx; + const struct pbuf *q = pbuf_skip_const(p, offset, &q_idx); + + /* return requested data if pbuf is OK */ + if ((q != NULL) && (q->len > q_idx)) { + return ((u8_t *)q->payload)[q_idx]; + } + return -1; +} + +/** + * @ingroup pbuf + * Put one byte to the specified position in a pbuf + * WARNING: silently ignores offset >= p->tot_len + * + * @param p pbuf to fill + * @param offset offset into p of the byte to write + * @param data byte to write at an offset into p + */ +void +pbuf_put_at(struct pbuf *p, u16_t offset, u8_t data) +{ + u16_t q_idx; + struct pbuf *q = pbuf_skip(p, offset, &q_idx); + + /* write requested data if pbuf is OK */ + if ((q != NULL) && (q->len > q_idx)) { + ((u8_t *)q->payload)[q_idx] = data; + } +} + +/** + * @ingroup pbuf + * Compare pbuf contents at specified offset with memory s2, both of length n + * + * @param p pbuf to compare + * @param offset offset into p at which to start comparing + * @param s2 buffer to compare + * @param n length of buffer to compare + * @return zero if equal, nonzero otherwise + * (0xffff if p is too short, diffoffset+1 otherwise) + */ +u16_t +pbuf_memcmp(const struct pbuf *p, u16_t offset, const void *s2, u16_t n) +{ + u16_t start = offset; + const struct pbuf *q = p; + u16_t i; + + /* pbuf long enough to perform check? */ + if (p->tot_len < (offset + n)) { + return 0xffff; + } + + /* get the correct pbuf from chain. We know it succeeds because of p->tot_len check above. */ + while ((q != NULL) && (q->len <= start)) { + start = (u16_t)(start - q->len); + q = q->next; + } + + /* return requested data if pbuf is OK */ + for (i = 0; i < n; i++) { + /* We know pbuf_get_at() succeeds because of p->tot_len check above. */ + u8_t a = pbuf_get_at(q, (u16_t)(start + i)); + u8_t b = ((const u8_t *)s2)[i]; + if (a != b) { + return (u16_t)LWIP_MIN(i + 1, 0xFFFF); + } + } + return 0; +} + +/** + * @ingroup pbuf + * Find occurrence of mem (with length mem_len) in pbuf p, starting at offset + * start_offset. + * + * @param p pbuf to search, maximum length is 0xFFFE since 0xFFFF is used as + * return value 'not found' + * @param mem search for the contents of this buffer + * @param mem_len length of 'mem' + * @param start_offset offset into p at which to start searching + * @return 0xFFFF if substr was not found in p or the index where it was found + */ +u16_t +pbuf_memfind(const struct pbuf *p, const void *mem, u16_t mem_len, u16_t start_offset) +{ + u16_t i; + u16_t max_cmp_start = (u16_t)(p->tot_len - mem_len); + if (p->tot_len >= mem_len + start_offset) { + for (i = start_offset; i <= max_cmp_start; i++) { + u16_t plus = pbuf_memcmp(p, i, mem, mem_len); + if (plus == 0) { + return i; + } + } + } + return 0xFFFF; +} + +/** + * Find occurrence of substr with length substr_len in pbuf p, start at offset + * start_offset + * WARNING: in contrast to strstr(), this one does not stop at the first \0 in + * the pbuf/source string! + * + * @param p pbuf to search, maximum length is 0xFFFE since 0xFFFF is used as + * return value 'not found' + * @param substr string to search for in p, maximum length is 0xFFFE + * @return 0xFFFF if substr was not found in p or the index where it was found + */ +u16_t +pbuf_strstr(const struct pbuf *p, const char *substr) +{ + size_t substr_len; + if ((substr == NULL) || (substr[0] == 0) || (p->tot_len == 0xFFFF)) { + return 0xFFFF; + } + substr_len = strlen(substr); + if (substr_len >= 0xFFFF) { + return 0xFFFF; + } + return pbuf_memfind(p, substr, (u16_t)substr_len, 0); +} diff --git a/middleware/lwip/src/core/raw.c b/middleware/lwip/src/core/raw.c new file mode 100644 index 0000000..40a442a --- /dev/null +++ b/middleware/lwip/src/core/raw.c @@ -0,0 +1,671 @@ +/** + * @file + * Implementation of raw protocol PCBs for low-level handling of + * different types of protocols besides (or overriding) those + * already available in lwIP.
+ * See also @ref raw_raw + * + * @defgroup raw_raw RAW + * @ingroup callbackstyle_api + * Implementation of raw protocol PCBs for low-level handling of + * different types of protocols besides (or overriding) those + * already available in lwIP.
+ * @see @ref api + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/def.h" +#include "lwip/memp.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/raw.h" +#include "lwip/priv/raw_priv.h" +#include "lwip/stats.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/inet_chksum.h" + +#include + +/** The list of RAW PCBs */ +static struct raw_pcb *raw_pcbs; + +static u8_t +raw_input_local_match(struct raw_pcb *pcb, u8_t broadcast) +{ + LWIP_UNUSED_ARG(broadcast); /* in IPv6 only case */ + + /* check if PCB is bound to specific netif */ + if ((pcb->netif_idx != NETIF_NO_INDEX) && + (pcb->netif_idx != netif_get_index(ip_data.current_input_netif))) { + return 0; + } + +#if LWIP_IPV4 && LWIP_IPV6 + /* Dual-stack: PCBs listening to any IP type also listen to any IP address */ + if (IP_IS_ANY_TYPE_VAL(pcb->local_ip)) { +#if IP_SOF_BROADCAST_RECV + if ((broadcast != 0) && !ip_get_option(pcb, SOF_BROADCAST)) { + return 0; + } +#endif /* IP_SOF_BROADCAST_RECV */ + return 1; + } +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + + /* Only need to check PCB if incoming IP version matches PCB IP version */ + if (IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ip_current_dest_addr())) { +#if LWIP_IPV4 + /* Special case: IPv4 broadcast: receive all broadcasts + * Note: broadcast variable can only be 1 if it is an IPv4 broadcast */ + if (broadcast != 0) { +#if IP_SOF_BROADCAST_RECV + if (ip_get_option(pcb, SOF_BROADCAST)) +#endif /* IP_SOF_BROADCAST_RECV */ + { + if (ip4_addr_isany(ip_2_ip4(&pcb->local_ip))) { + return 1; + } + } + } else +#endif /* LWIP_IPV4 */ + /* Handle IPv4 and IPv6: catch all or exact match */ + if (ip_addr_isany(&pcb->local_ip) || + ip_addr_eq(&pcb->local_ip, ip_current_dest_addr())) { + return 1; + } + } + + return 0; +} + +/** + * Determine if in incoming IP packet is covered by a RAW PCB + * and if so, pass it to a user-provided receive callback function. + * + * Given an incoming IP datagram (as a chain of pbufs) this function + * finds a corresponding RAW PCB and calls the corresponding receive + * callback function. + * + * @param p pbuf to be demultiplexed to a RAW PCB. + * @param inp network interface on which the datagram was received. + * @return - 1 if the packet has been eaten by a RAW PCB receive + * callback function. The caller MAY NOT not reference the + * packet any longer, and MAY NOT call pbuf_free(). + * @return - 0 if packet is not eaten (pbuf is still referenced by the + * caller). + * + */ +raw_input_state_t +raw_input(struct pbuf *p, struct netif *inp) +{ + struct raw_pcb *pcb, *prev; + s16_t proto; + raw_input_state_t ret = RAW_INPUT_NONE; + u8_t broadcast = ip_addr_isbroadcast(ip_current_dest_addr(), ip_current_netif()); + + LWIP_UNUSED_ARG(inp); + +#if LWIP_IPV6 +#if LWIP_IPV4 + if (IP_HDR_GET_VERSION(p->payload) == 6) +#endif /* LWIP_IPV4 */ + { + struct ip6_hdr *ip6hdr = (struct ip6_hdr *)p->payload; + proto = IP6H_NEXTH(ip6hdr); + } +#if LWIP_IPV4 + else +#endif /* LWIP_IPV4 */ +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 + { + proto = IPH_PROTO((struct ip_hdr *)p->payload); + } +#endif /* LWIP_IPV4 */ + + prev = NULL; + pcb = raw_pcbs; + /* loop through all raw pcbs until the packet is eaten by one */ + /* this allows multiple pcbs to match against the packet by design */ + while (pcb != NULL) { + if ((pcb->protocol == proto) && raw_input_local_match(pcb, broadcast) && + (((pcb->flags & RAW_FLAGS_CONNECTED) == 0) || + ip_addr_eq(&pcb->remote_ip, ip_current_src_addr()))) { + /* receive callback function available? */ + if (pcb->recv != NULL) { + u8_t eaten; +#ifndef LWIP_NOASSERT + void *old_payload = p->payload; +#endif + ret = RAW_INPUT_DELIVERED; + /* the receive callback function did not eat the packet? */ + eaten = pcb->recv(pcb->recv_arg, pcb, p, ip_current_src_addr()); + if (eaten != 0) { + /* receive function ate the packet */ + p = NULL; + if (prev != NULL) { + /* move the pcb to the front of raw_pcbs so that is + found faster next time */ + prev->next = pcb->next; + pcb->next = raw_pcbs; + raw_pcbs = pcb; + } + return RAW_INPUT_EATEN; + } else { + /* sanity-check that the receive callback did not alter the pbuf */ + LWIP_ASSERT("raw pcb recv callback altered pbuf payload pointer without eating packet", + p->payload == old_payload); + } + } + /* no receive callback function was set for this raw PCB */ + } + /* drop the packet */ + prev = pcb; + pcb = pcb->next; + } + return ret; +} + +/** + * @ingroup raw_raw + * Bind a RAW PCB. + * + * @param pcb RAW PCB to be bound with a local address ipaddr. + * @param ipaddr local IP address to bind with. Use IP4_ADDR_ANY to + * bind to all local interfaces. + * + * @return lwIP error code. + * - ERR_OK. Successful. No error occurred. + * - ERR_USE. The specified IP address is already bound to by + * another RAW PCB. + * + * @see raw_disconnect() + */ +err_t +raw_bind(struct raw_pcb *pcb, const ip_addr_t *ipaddr) +{ + LWIP_ASSERT_CORE_LOCKED(); + if ((pcb == NULL) || (ipaddr == NULL)) { + return ERR_VAL; + } + ip_addr_set_ipaddr(&pcb->local_ip, ipaddr); +#if LWIP_IPV6 && LWIP_IPV6_SCOPES + /* If the given IP address should have a zone but doesn't, assign one now. + * This is legacy support: scope-aware callers should always provide properly + * zoned source addresses. */ + if (IP_IS_V6(&pcb->local_ip) && + ip6_addr_lacks_zone(ip_2_ip6(&pcb->local_ip), IP6_UNKNOWN)) { + ip6_addr_select_zone(ip_2_ip6(&pcb->local_ip), ip_2_ip6(&pcb->local_ip)); + } +#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ + return ERR_OK; +} + +/** + * @ingroup raw_raw + * Bind an RAW PCB to a specific netif. + * After calling this function, all packets received via this PCB + * are guaranteed to have come in via the specified netif, and all + * outgoing packets will go out via the specified netif. + * + * @param pcb RAW PCB to be bound with netif. + * @param netif netif to bind to. Can be NULL. + * + * @see raw_disconnect() + */ +void +raw_bind_netif(struct raw_pcb *pcb, const struct netif *netif) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (netif != NULL) { + pcb->netif_idx = netif_get_index(netif); + } else { + pcb->netif_idx = NETIF_NO_INDEX; + } +} + +/** + * @ingroup raw_raw + * Connect an RAW PCB. This function is required by upper layers + * of lwip. Using the raw api you could use raw_sendto() instead + * + * This will associate the RAW PCB with the remote address. + * + * @param pcb RAW PCB to be connected with remote address ipaddr and port. + * @param ipaddr remote IP address to connect with. + * + * @return lwIP error code + * + * @see raw_disconnect() and raw_sendto() + */ +err_t +raw_connect(struct raw_pcb *pcb, const ip_addr_t *ipaddr) +{ + LWIP_ASSERT_CORE_LOCKED(); + if ((pcb == NULL) || (ipaddr == NULL)) { + return ERR_VAL; + } + ip_addr_set_ipaddr(&pcb->remote_ip, ipaddr); +#if LWIP_IPV6 && LWIP_IPV6_SCOPES + /* If the given IP address should have a zone but doesn't, assign one now, + * using the bound address to make a more informed decision when possible. */ + if (IP_IS_V6(&pcb->remote_ip) && + ip6_addr_lacks_zone(ip_2_ip6(&pcb->remote_ip), IP6_UNKNOWN)) { + ip6_addr_select_zone(ip_2_ip6(&pcb->remote_ip), ip_2_ip6(&pcb->local_ip)); + } +#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ + raw_set_flags(pcb, RAW_FLAGS_CONNECTED); + return ERR_OK; +} + +/** + * @ingroup raw_raw + * Disconnect a RAW PCB. + * + * @param pcb the raw pcb to disconnect. + */ +void +raw_disconnect(struct raw_pcb *pcb) +{ + LWIP_ASSERT_CORE_LOCKED(); + /* reset remote address association */ +#if LWIP_IPV4 && LWIP_IPV6 + if (IP_IS_ANY_TYPE_VAL(pcb->local_ip)) { + ip_addr_copy(pcb->remote_ip, *IP_ANY_TYPE); + } else { +#endif + ip_addr_set_any(IP_IS_V6_VAL(pcb->remote_ip), &pcb->remote_ip); +#if LWIP_IPV4 && LWIP_IPV6 + } +#endif + pcb->netif_idx = NETIF_NO_INDEX; + /* mark PCB as unconnected */ + raw_clear_flags(pcb, RAW_FLAGS_CONNECTED); +} + +/** + * @ingroup raw_raw + * Set the callback function for received packets that match the + * raw PCB's protocol and binding. + * + * The callback function MUST either + * - eat the packet by calling pbuf_free() and returning non-zero. The + * packet will not be passed to other raw PCBs or other protocol layers. + * - not free the packet, and return zero. The packet will be matched + * against further PCBs and/or forwarded to another protocol layers. + */ +void +raw_recv(struct raw_pcb *pcb, raw_recv_fn recv, void *recv_arg) +{ + LWIP_ASSERT_CORE_LOCKED(); + /* remember recv() callback and user data */ + pcb->recv = recv; + pcb->recv_arg = recv_arg; +} + +/** + * @ingroup raw_raw + * Send the raw IP packet to the given address. An IP header will be prepended + * to the packet, unless the RAW_FLAGS_HDRINCL flag is set on the PCB. In that + * case, the packet must include an IP header, which will then be sent as is. + * + * @param pcb the raw pcb which to send + * @param p the IP payload to send + * @param ipaddr the destination address of the IP packet + * + */ +err_t +raw_sendto(struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *ipaddr) +{ + struct netif *netif; + const ip_addr_t *src_ip; + + if ((pcb == NULL) || (ipaddr == NULL) || !IP_ADDR_PCB_VERSION_MATCH(pcb, ipaddr)) { + return ERR_VAL; + } + + LWIP_DEBUGF(RAW_DEBUG | LWIP_DBG_TRACE, ("raw_sendto\n")); + + if (pcb->netif_idx != NETIF_NO_INDEX) { + netif = netif_get_by_index(pcb->netif_idx); + } else { +#if LWIP_MULTICAST_TX_OPTIONS + netif = NULL; + if (ip_addr_ismulticast(ipaddr)) { + /* For multicast-destined packets, use the user-provided interface index to + * determine the outgoing interface, if an interface index is set and a + * matching netif can be found. Otherwise, fall back to regular routing. */ + netif = netif_get_by_index(pcb->mcast_ifindex); + } + + if (netif == NULL) +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + { + netif = ip_route(&pcb->local_ip, ipaddr); + } + } + + if (netif == NULL) { + LWIP_DEBUGF(RAW_DEBUG | LWIP_DBG_LEVEL_WARNING, ("raw_sendto: No route to ")); + ip_addr_debug_print(RAW_DEBUG | LWIP_DBG_LEVEL_WARNING, ipaddr); + return ERR_RTE; + } + + if (ip_addr_isany(&pcb->local_ip) || ip_addr_ismulticast(&pcb->local_ip)) { + /* use outgoing network interface IP address as source address */ + src_ip = ip_netif_get_local_ip(netif, ipaddr); +#if LWIP_IPV6 + if (src_ip == NULL) { + return ERR_RTE; + } +#endif /* LWIP_IPV6 */ + } else { + /* use RAW PCB local IP address as source address */ + src_ip = &pcb->local_ip; + } + + return raw_sendto_if_src(pcb, p, ipaddr, netif, src_ip); +} + +/** + * @ingroup raw_raw + * Send the raw IP packet to the given address, using a particular outgoing + * netif and source IP address. An IP header will be prepended to the packet, + * unless the RAW_FLAGS_HDRINCL flag is set on the PCB. In that case, the + * packet must include an IP header, which will then be sent as is. + * + * @param pcb RAW PCB used to send the data + * @param p chain of pbufs to be sent + * @param dst_ip destination IP address + * @param netif the netif used for sending + * @param src_ip source IP address + */ +err_t +raw_sendto_if_src(struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, + struct netif *netif, const ip_addr_t *src_ip) +{ + err_t err; + struct pbuf *q; /* q will be sent down the stack */ + u16_t header_size; + u8_t ttl; + + LWIP_ASSERT_CORE_LOCKED(); + + if ((pcb == NULL) || (dst_ip == NULL) || (netif == NULL) || (src_ip == NULL) || + !IP_ADDR_PCB_VERSION_MATCH(pcb, src_ip) || !IP_ADDR_PCB_VERSION_MATCH(pcb, dst_ip)) { + return ERR_VAL; + } + + header_size = ( +#if LWIP_IPV4 && LWIP_IPV6 + IP_IS_V6(dst_ip) ? IP6_HLEN : IP_HLEN); +#elif LWIP_IPV4 + IP_HLEN); +#else + IP6_HLEN); +#endif + + /* Handle the HDRINCL option as an exception: none of the code below applies + * to this case, and sending the packet needs to be done differently too. */ + if (pcb->flags & RAW_FLAGS_HDRINCL) { + /* A full header *must* be present in the first pbuf of the chain, as the + * output routines may access its fields directly. */ + if (p->len < header_size) { + return ERR_VAL; + } + /* @todo multicast loop support, if at all desired for this scenario.. */ + NETIF_SET_HINTS(netif, &pcb->netif_hints); + err = ip_output_if_hdrincl(p, src_ip, dst_ip, netif); + NETIF_RESET_HINTS(netif); + return err; + } + + /* packet too large to add an IP header without causing an overflow? */ + if ((u16_t)(p->tot_len + header_size) < p->tot_len) { + return ERR_MEM; + } + /* not enough space to add an IP header to first pbuf in given p chain? */ + if (pbuf_add_header(p, header_size)) { + /* allocate header in new pbuf */ + q = pbuf_alloc(PBUF_IP, 0, PBUF_RAM); + /* new header pbuf could not be allocated? */ + if (q == NULL) { + LWIP_DEBUGF(RAW_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("raw_sendto: could not allocate header\n")); + return ERR_MEM; + } + if (p->tot_len != 0) { + /* chain header q in front of given pbuf p */ + pbuf_chain(q, p); + } + /* { first pbuf q points to header pbuf } */ + LWIP_DEBUGF(RAW_DEBUG, ("raw_sendto: added header pbuf %p before given pbuf %p\n", (void *)q, (void *)p)); + } else { + /* first pbuf q equals given pbuf */ + q = p; + if (pbuf_remove_header(q, header_size)) { + LWIP_ASSERT("Can't restore header we just removed!", 0); + return ERR_MEM; + } + } + +#if IP_SOF_BROADCAST + if (IP_IS_V4(dst_ip)) { + /* broadcast filter? */ + if (!ip_get_option(pcb, SOF_BROADCAST) && ip_addr_isbroadcast(dst_ip, netif)) { + LWIP_DEBUGF(RAW_DEBUG | LWIP_DBG_LEVEL_WARNING, ("raw_sendto: SOF_BROADCAST not enabled on pcb %p\n", (void *)pcb)); + /* free any temporary header pbuf allocated by pbuf_header() */ + if (q != p) { + pbuf_free(q); + } + return ERR_VAL; + } + } +#endif /* IP_SOF_BROADCAST */ + + /* Multicast Loop? */ +#if LWIP_MULTICAST_TX_OPTIONS + if (((pcb->flags & RAW_FLAGS_MULTICAST_LOOP) != 0) && ip_addr_ismulticast(dst_ip)) { + q->flags |= PBUF_FLAG_MCASTLOOP; + } +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + +#if LWIP_IPV6 + /* If requested, based on the IPV6_CHECKSUM socket option per RFC3542, + compute the checksum and update the checksum in the payload. */ + if (IP_IS_V6(dst_ip) && pcb->chksum_reqd) { + u16_t chksum = ip6_chksum_pseudo(p, pcb->protocol, p->tot_len, ip_2_ip6(src_ip), ip_2_ip6(dst_ip)); + LWIP_ASSERT("Checksum must fit into first pbuf", p->len >= (pcb->chksum_offset + 2)); + SMEMCPY(((u8_t *)p->payload) + pcb->chksum_offset, &chksum, sizeof(u16_t)); + } +#endif + + /* Determine TTL to use */ +#if LWIP_MULTICAST_TX_OPTIONS + ttl = (ip_addr_ismulticast(dst_ip) ? raw_get_multicast_ttl(pcb) : pcb->ttl); +#else /* LWIP_MULTICAST_TX_OPTIONS */ + ttl = pcb->ttl; +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + + NETIF_SET_HINTS(netif, &pcb->netif_hints); + err = ip_output_if(q, src_ip, dst_ip, ttl, pcb->tos, pcb->protocol, netif); + NETIF_RESET_HINTS(netif); + + /* did we chain a header earlier? */ + if (q != p) { + /* free the header */ + pbuf_free(q); + } + return err; +} + +/** + * @ingroup raw_raw + * Send the raw IP packet to the address given by raw_connect() + * + * @param pcb the raw pcb which to send + * @param p the IP payload to send + * + */ +err_t +raw_send(struct raw_pcb *pcb, struct pbuf *p) +{ + return raw_sendto(pcb, p, &pcb->remote_ip); +} + +/** + * @ingroup raw_raw + * Remove an RAW PCB. + * + * @param pcb RAW PCB to be removed. The PCB is removed from the list of + * RAW PCB's and the data structure is freed from memory. + * + * @see raw_new() + */ +void +raw_remove(struct raw_pcb *pcb) +{ + struct raw_pcb *pcb2; + LWIP_ASSERT_CORE_LOCKED(); + /* pcb to be removed is first in list? */ + if (raw_pcbs == pcb) { + /* make list start at 2nd pcb */ + raw_pcbs = raw_pcbs->next; + /* pcb not 1st in list */ + } else { + for (pcb2 = raw_pcbs; pcb2 != NULL; pcb2 = pcb2->next) { + /* find pcb in raw_pcbs list */ + if (pcb2->next != NULL && pcb2->next == pcb) { + /* remove pcb from list */ + pcb2->next = pcb->next; + break; + } + } + } + memp_free(MEMP_RAW_PCB, pcb); +} + +/** + * @ingroup raw_raw + * Create a RAW PCB. + * + * @return The RAW PCB which was created. NULL if the PCB data structure + * could not be allocated. + * + * @param proto the protocol number of the IPs payload (e.g. IP_PROTO_ICMP) + * + * @see raw_remove() + */ +struct raw_pcb * +raw_new(u8_t proto) +{ + struct raw_pcb *pcb; + + LWIP_DEBUGF(RAW_DEBUG | LWIP_DBG_TRACE, ("raw_new\n")); + LWIP_ASSERT_CORE_LOCKED(); + + pcb = (struct raw_pcb *)memp_malloc(MEMP_RAW_PCB); + /* could allocate RAW PCB? */ + if (pcb != NULL) { + /* initialize PCB to all zeroes */ + memset(pcb, 0, sizeof(struct raw_pcb)); + pcb->protocol = proto; + pcb->ttl = RAW_TTL; +#if LWIP_MULTICAST_TX_OPTIONS + raw_set_multicast_ttl(pcb, RAW_TTL); +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + pcb->next = raw_pcbs; + raw_pcbs = pcb; + } + return pcb; +} + +/** + * @ingroup raw_raw + * Create a RAW PCB for specific IP type. + * + * @return The RAW PCB which was created. NULL if the PCB data structure + * could not be allocated. + * + * @param type IP address type, see @ref lwip_ip_addr_type definitions. + * If you want to listen to IPv4 and IPv6 (dual-stack) packets, + * supply @ref IPADDR_TYPE_ANY as argument and bind to @ref IP_ANY_TYPE. + * @param proto the protocol number (next header) of the IPv6 packet payload + * (e.g. IP6_NEXTH_ICMP6) + * + * @see raw_remove() + */ +struct raw_pcb * +raw_new_ip_type(u8_t type, u8_t proto) +{ + struct raw_pcb *pcb; + LWIP_ASSERT_CORE_LOCKED(); + pcb = raw_new(proto); +#if LWIP_IPV4 && LWIP_IPV6 + if (pcb != NULL) { + IP_SET_TYPE_VAL(pcb->local_ip, type); + IP_SET_TYPE_VAL(pcb->remote_ip, type); + } +#else /* LWIP_IPV4 && LWIP_IPV6 */ + LWIP_UNUSED_ARG(type); +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + return pcb; +} + +/** This function is called from netif.c when address is changed + * + * @param old_addr IP address of the netif before change + * @param new_addr IP address of the netif after change + */ +void raw_netif_ip_addr_changed(const ip_addr_t *old_addr, const ip_addr_t *new_addr) +{ + struct raw_pcb *rpcb; + + if (!ip_addr_isany(old_addr) && !ip_addr_isany(new_addr)) { + for (rpcb = raw_pcbs; rpcb != NULL; rpcb = rpcb->next) { + /* PCB bound to current local interface address? */ + if (ip_addr_eq(&rpcb->local_ip, old_addr)) { + /* The PCB is bound to the old ipaddr and + * is set to bound to the new one instead */ + ip_addr_copy(rpcb->local_ip, *new_addr); + } + } + } +} + +#endif /* LWIP_RAW */ diff --git a/middleware/lwip/src/core/stats.c b/middleware/lwip/src/core/stats.c new file mode 100644 index 0000000..95445ec --- /dev/null +++ b/middleware/lwip/src/core/stats.c @@ -0,0 +1,168 @@ +/** + * @file + * Statistics module + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#if LWIP_STATS /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/def.h" +#include "lwip/stats.h" +#include "lwip/mem.h" +#include "lwip/debug.h" + +#include + +struct stats_ lwip_stats; + +void +stats_init(void) +{ +#ifdef LWIP_DEBUG +#if MEM_STATS + lwip_stats.mem.name = "MEM"; +#endif /* MEM_STATS */ +#endif /* LWIP_DEBUG */ +} + +#if LWIP_STATS_DISPLAY +void +stats_display_proto(struct stats_proto *proto, const char *name) +{ + LWIP_PLATFORM_DIAG(("\n%s\n\t", name)); + LWIP_PLATFORM_DIAG(("xmit: %"STAT_COUNTER_F"\n\t", proto->xmit)); + LWIP_PLATFORM_DIAG(("recv: %"STAT_COUNTER_F"\n\t", proto->recv)); + LWIP_PLATFORM_DIAG(("fw: %"STAT_COUNTER_F"\n\t", proto->fw)); + LWIP_PLATFORM_DIAG(("drop: %"STAT_COUNTER_F"\n\t", proto->drop)); + LWIP_PLATFORM_DIAG(("chkerr: %"STAT_COUNTER_F"\n\t", proto->chkerr)); + LWIP_PLATFORM_DIAG(("lenerr: %"STAT_COUNTER_F"\n\t", proto->lenerr)); + LWIP_PLATFORM_DIAG(("memerr: %"STAT_COUNTER_F"\n\t", proto->memerr)); + LWIP_PLATFORM_DIAG(("rterr: %"STAT_COUNTER_F"\n\t", proto->rterr)); + LWIP_PLATFORM_DIAG(("proterr: %"STAT_COUNTER_F"\n\t", proto->proterr)); + LWIP_PLATFORM_DIAG(("opterr: %"STAT_COUNTER_F"\n\t", proto->opterr)); + LWIP_PLATFORM_DIAG(("err: %"STAT_COUNTER_F"\n\t", proto->err)); + LWIP_PLATFORM_DIAG(("cachehit: %"STAT_COUNTER_F"\n", proto->cachehit)); +} + +#if IGMP_STATS || MLD6_STATS +void +stats_display_igmp(struct stats_igmp *igmp, const char *name) +{ + LWIP_PLATFORM_DIAG(("\n%s\n\t", name)); + LWIP_PLATFORM_DIAG(("xmit: %"STAT_COUNTER_F"\n\t", igmp->xmit)); + LWIP_PLATFORM_DIAG(("recv: %"STAT_COUNTER_F"\n\t", igmp->recv)); + LWIP_PLATFORM_DIAG(("drop: %"STAT_COUNTER_F"\n\t", igmp->drop)); + LWIP_PLATFORM_DIAG(("chkerr: %"STAT_COUNTER_F"\n\t", igmp->chkerr)); + LWIP_PLATFORM_DIAG(("lenerr: %"STAT_COUNTER_F"\n\t", igmp->lenerr)); + LWIP_PLATFORM_DIAG(("memerr: %"STAT_COUNTER_F"\n\t", igmp->memerr)); + LWIP_PLATFORM_DIAG(("proterr: %"STAT_COUNTER_F"\n\t", igmp->proterr)); + LWIP_PLATFORM_DIAG(("rx_v1: %"STAT_COUNTER_F"\n\t", igmp->rx_v1)); + LWIP_PLATFORM_DIAG(("rx_group: %"STAT_COUNTER_F"\n\t", igmp->rx_group)); + LWIP_PLATFORM_DIAG(("rx_general: %"STAT_COUNTER_F"\n\t", igmp->rx_general)); + LWIP_PLATFORM_DIAG(("rx_report: %"STAT_COUNTER_F"\n\t", igmp->rx_report)); + LWIP_PLATFORM_DIAG(("tx_join: %"STAT_COUNTER_F"\n\t", igmp->tx_join)); + LWIP_PLATFORM_DIAG(("tx_leave: %"STAT_COUNTER_F"\n\t", igmp->tx_leave)); + LWIP_PLATFORM_DIAG(("tx_report: %"STAT_COUNTER_F"\n", igmp->tx_report)); +} +#endif /* IGMP_STATS || MLD6_STATS */ + +#if MEM_STATS || MEMP_STATS +void +stats_display_mem(struct stats_mem *mem, const char *name) +{ + LWIP_PLATFORM_DIAG(("\nMEM %s\n\t", name)); + LWIP_PLATFORM_DIAG(("avail: %"MEM_SIZE_F"\n\t", mem->avail)); + LWIP_PLATFORM_DIAG(("used: %"MEM_SIZE_F"\n\t", mem->used)); + LWIP_PLATFORM_DIAG(("max: %"MEM_SIZE_F"\n\t", mem->max)); + LWIP_PLATFORM_DIAG(("err: %"STAT_COUNTER_F"\n", mem->err)); +} + +#if MEMP_STATS +void +stats_display_memp(struct stats_mem *mem, int idx) +{ + if (idx < MEMP_MAX) { + stats_display_mem(mem, mem->name); + } +} +#endif /* MEMP_STATS */ +#endif /* MEM_STATS || MEMP_STATS */ + +#if SYS_STATS +void +stats_display_sys(struct stats_sys *sys) +{ + LWIP_PLATFORM_DIAG(("\nSYS\n\t")); + LWIP_PLATFORM_DIAG(("sem.used: %"STAT_COUNTER_F"\n\t", sys->sem.used)); + LWIP_PLATFORM_DIAG(("sem.max: %"STAT_COUNTER_F"\n\t", sys->sem.max)); + LWIP_PLATFORM_DIAG(("sem.err: %"STAT_COUNTER_F"\n\t", sys->sem.err)); + LWIP_PLATFORM_DIAG(("mutex.used: %"STAT_COUNTER_F"\n\t", sys->mutex.used)); + LWIP_PLATFORM_DIAG(("mutex.max: %"STAT_COUNTER_F"\n\t", sys->mutex.max)); + LWIP_PLATFORM_DIAG(("mutex.err: %"STAT_COUNTER_F"\n\t", sys->mutex.err)); + LWIP_PLATFORM_DIAG(("mbox.used: %"STAT_COUNTER_F"\n\t", sys->mbox.used)); + LWIP_PLATFORM_DIAG(("mbox.max: %"STAT_COUNTER_F"\n\t", sys->mbox.max)); + LWIP_PLATFORM_DIAG(("mbox.err: %"STAT_COUNTER_F"\n", sys->mbox.err)); +} +#endif /* SYS_STATS */ + +void +stats_display(void) +{ + s16_t i; + + LINK_STATS_DISPLAY(); + ETHARP_STATS_DISPLAY(); + IPFRAG_STATS_DISPLAY(); + IP6_FRAG_STATS_DISPLAY(); + IP_STATS_DISPLAY(); + ND6_STATS_DISPLAY(); + IP6_STATS_DISPLAY(); + IGMP_STATS_DISPLAY(); + MLD6_STATS_DISPLAY(); + ICMP_STATS_DISPLAY(); + ICMP6_STATS_DISPLAY(); + UDP_STATS_DISPLAY(); + TCP_STATS_DISPLAY(); + MEM_STATS_DISPLAY(); + for (i = 0; i < MEMP_MAX; i++) { + MEMP_STATS_DISPLAY(i); + } + SYS_STATS_DISPLAY(); +} +#endif /* LWIP_STATS_DISPLAY */ + +#endif /* LWIP_STATS */ diff --git a/middleware/lwip/src/core/sys.c b/middleware/lwip/src/core/sys.c new file mode 100644 index 0000000..69d7197 --- /dev/null +++ b/middleware/lwip/src/core/sys.c @@ -0,0 +1,148 @@ +/** + * @file + * lwIP Operating System abstraction + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +/** + * @defgroup sys_layer Porting (system abstraction layer) + * @ingroup lwip + * + * @defgroup sys_os OS abstraction layer + * @ingroup sys_layer + * No need to implement functions in this section in NO_SYS mode. + * The OS-specific code should be implemented in arch/sys_arch.h + * and sys_arch.c of your port. + * + * The operating system emulation layer provides a common interface + * between the lwIP code and the underlying operating system kernel. The + * general idea is that porting lwIP to new architectures requires only + * small changes to a few header files and a new sys_arch + * implementation. It is also possible to do a sys_arch implementation + * that does not rely on any underlying operating system. + * + * The sys_arch provides semaphores, mailboxes and mutexes to lwIP. For the full + * lwIP functionality, multiple threads support can be implemented in the + * sys_arch, but this is not required for the basic lwIP + * functionality. Timer scheduling is implemented in lwIP, but can be implemented + * by the sys_arch port (LWIP_TIMERS_CUSTOM==1). + * + * In addition to the source file providing the functionality of sys_arch, + * the OS emulation layer must provide several header files defining + * macros used throughout lwip. The files required and the macros they + * must define are listed below the sys_arch description. + * + * Since lwIP 1.4.0, semaphore, mutexes and mailbox functions are prototyped in a way that + * allows both using pointers or actual OS structures to be used. This way, memory + * required for such types can be either allocated in place (globally or on the + * stack) or on the heap (allocated internally in the "*_new()" functions). + * + * Note: + * ----- + * Be careful with using mem_malloc() in sys_arch. When malloc() refers to + * mem_malloc() you can run into a circular function call problem. In mem.c + * mem_init() tries to allocate a semaphore using mem_malloc, which of course + * can't be performed when sys_arch uses mem_malloc. + * + * @defgroup sys_sem Semaphores + * @ingroup sys_os + * Semaphores can be either counting or binary - lwIP works with both + * kinds. + * Semaphores are represented by the type "sys_sem_t" which is typedef'd + * in the sys_arch.h file. Mailboxes are equivalently represented by the + * type "sys_mbox_t". Mutexes are represented by the type "sys_mutex_t". + * lwIP does not place any restrictions on how these types are represented + * internally. + * + * @defgroup sys_mutex Mutexes + * @ingroup sys_os + * Mutexes are recommended to correctly handle priority inversion, + * especially if you use LWIP_CORE_LOCKING . + * + * @defgroup sys_mbox Mailboxes + * @ingroup sys_os + * Mailboxes should be implemented as a queue which allows multiple messages + * to be posted (implementing as a rendez-vous point where only one message can be + * posted at a time can have a highly negative impact on performance). A message + * in a mailbox is just a pointer, nothing more. + * + * @defgroup sys_time Time + * @ingroup sys_layer + * + * @defgroup sys_prot Critical sections + * @ingroup sys_layer + * Used to protect short regions of code against concurrent access. + * - Your system is a bare-metal system (probably with an RTOS) + * and interrupts are under your control: + * Implement this as LockInterrupts() / UnlockInterrupts() + * - Your system uses an RTOS with deferred interrupt handling from a + * worker thread: Implement as a global mutex or lock/unlock scheduler + * - Your system uses a high-level OS with e.g. POSIX signals: + * Implement as a global mutex + * + * @defgroup sys_misc Misc + * @ingroup sys_os + */ + +#include "lwip/opt.h" + +#include "lwip/sys.h" + +/* Most of the functions defined in sys.h must be implemented in the + * architecture-dependent file sys_arch.c */ + +#if !NO_SYS + +#ifndef sys_msleep +/** + * Sleep for some ms. Timeouts are NOT processed while sleeping. + * + * @param ms number of milliseconds to sleep + */ +void +sys_msleep(u32_t ms) +{ + if (ms > 0) { + sys_sem_t delaysem; + err_t err = sys_sem_new(&delaysem, 0); + if (err == ERR_OK) { + sys_arch_sem_wait(&delaysem, ms); + sys_sem_free(&delaysem); + } + } +} +#endif /* sys_msleep */ + +#endif /* !NO_SYS */ diff --git a/middleware/lwip/src/core/tcp.c b/middleware/lwip/src/core/tcp.c new file mode 100644 index 0000000..26091b9 --- /dev/null +++ b/middleware/lwip/src/core/tcp.c @@ -0,0 +1,2723 @@ +/** + * @file + * Transmission Control Protocol for IP + * See also @ref tcp_raw + * + * @defgroup tcp_raw TCP + * @ingroup callbackstyle_api + * Transmission Control Protocol for IP
+ * @see @ref api + * + * Common functions for the TCP implementation, such as functions + * for manipulating the data structures and the TCP timer functions. TCP functions + * related to input and output is found in tcp_in.c and tcp_out.c respectively.
+ * + * TCP connection setup + * -------------------- + * The functions used for setting up connections is similar to that of + * the sequential API and of the BSD socket API. A new TCP connection + * identifier (i.e., a protocol control block - PCB) is created with the + * tcp_new() function. This PCB can then be either set to listen for new + * incoming connections or be explicitly connected to another host. + * - tcp_new() + * - tcp_bind() + * - tcp_listen() and tcp_listen_with_backlog() + * - tcp_accept() + * - tcp_connect() + * + * Sending TCP data + * ---------------- + * TCP data is sent by enqueueing the data with a call to tcp_write() and + * triggering to send by calling tcp_output(). When the data is successfully + * transmitted to the remote host, the application will be notified with a + * call to a specified callback function. + * - tcp_write() + * - tcp_output() + * - tcp_sent() + * + * Receiving TCP data + * ------------------ + * TCP data reception is callback based - an application specified + * callback function is called when new data arrives. When the + * application has taken the data, it has to call the tcp_recved() + * function to indicate that TCP can advertise increase the receive + * window. + * - tcp_recv() + * - tcp_recved() + * + * Application polling + * ------------------- + * When a connection is idle (i.e., no data is either transmitted or + * received), lwIP will repeatedly poll the application by calling a + * specified callback function. This can be used either as a watchdog + * timer for killing connections that have stayed idle for too long, or + * as a method of waiting for memory to become available. For instance, + * if a call to tcp_write() has failed because memory wasn't available, + * the application may use the polling functionality to call tcp_write() + * again when the connection has been idle for a while. + * - tcp_poll() + * + * Closing and aborting connections + * -------------------------------- + * - tcp_close() + * - tcp_abort() + * - tcp_err() + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/memp.h" +#include "lwip/tcp.h" +#include "lwip/priv/tcp_priv.h" +#include "lwip/debug.h" +#include "lwip/stats.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/nd6.h" + +#include + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif + +#ifndef TCP_LOCAL_PORT_RANGE_START +/* From http://www.iana.org/assignments/port-numbers: + "The Dynamic and/or Private Ports are those from 49152 through 65535" */ +#define TCP_LOCAL_PORT_RANGE_START 0xc000 +#define TCP_LOCAL_PORT_RANGE_END 0xffff +#define TCP_ENSURE_LOCAL_PORT_RANGE(port) ((u16_t)(((port) & (u16_t)~TCP_LOCAL_PORT_RANGE_START) + TCP_LOCAL_PORT_RANGE_START)) +#endif + +#if LWIP_TCP_KEEPALIVE +#define TCP_KEEP_DUR(pcb) ((pcb)->keep_cnt * (pcb)->keep_intvl) +#define TCP_KEEP_INTVL(pcb) ((pcb)->keep_intvl) +#else /* LWIP_TCP_KEEPALIVE */ +#define TCP_KEEP_DUR(pcb) TCP_MAXIDLE +#define TCP_KEEP_INTVL(pcb) TCP_KEEPINTVL_DEFAULT +#endif /* LWIP_TCP_KEEPALIVE */ + +/* As initial send MSS, we use TCP_MSS but limit it to 536. */ +#if TCP_MSS > 536 +#define INITIAL_MSS 536 +#else +#define INITIAL_MSS TCP_MSS +#endif + +static const char *const tcp_state_str[] = { + "CLOSED", + "LISTEN", + "SYN_SENT", + "SYN_RCVD", + "ESTABLISHED", + "FIN_WAIT_1", + "FIN_WAIT_2", + "CLOSE_WAIT", + "CLOSING", + "LAST_ACK", + "TIME_WAIT" +}; + +/* last local TCP port */ +static volatile u16_t tcp_port = TCP_LOCAL_PORT_RANGE_START; + +/* Incremented every coarse grained timer shot (typically every 500 ms). */ +u32_t tcp_ticks; +static const u8_t tcp_backoff[13] = +{ 1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7}; +/* Times per slowtmr hits */ +static const u8_t tcp_persist_backoff[7] = { 3, 6, 12, 24, 48, 96, 120 }; + +/* The TCP PCB lists. */ + +/** List of all TCP PCBs bound but not yet (connected || listening) */ +struct tcp_pcb *tcp_bound_pcbs; +/** List of all TCP PCBs in LISTEN state */ +union tcp_listen_pcbs_t tcp_listen_pcbs; +/** List of all TCP PCBs that are in a state in which + * they accept or send data. */ +struct tcp_pcb *tcp_active_pcbs; +/** List of all TCP PCBs in TIME-WAIT state */ +struct tcp_pcb *tcp_tw_pcbs; + +/** An array with all (non-temporary) PCB lists, mainly used for smaller code size */ +struct tcp_pcb **const tcp_pcb_lists[] = {&tcp_listen_pcbs.pcbs, &tcp_bound_pcbs, + &tcp_active_pcbs, &tcp_tw_pcbs +}; + +u8_t tcp_active_pcbs_changed; + +/** Timer counter to handle calling slow-timer from tcp_tmr() */ +static u8_t tcp_timer; +static u8_t tcp_timer_ctr; +static u16_t tcp_new_port(void); + +static err_t tcp_close_shutdown_fin(struct tcp_pcb *pcb); +#if LWIP_TCP_PCB_NUM_EXT_ARGS +static void tcp_ext_arg_invoke_callbacks_destroyed(struct tcp_pcb_ext_args *ext_args); +#endif + +/** + * Initialize this module. + */ +void +tcp_init(void) +{ +#ifdef LWIP_RAND + tcp_port = TCP_ENSURE_LOCAL_PORT_RANGE(LWIP_RAND()); +#endif /* LWIP_RAND */ +} + +/** Free a tcp pcb */ +void +tcp_free(struct tcp_pcb *pcb) +{ + LWIP_ASSERT("tcp_free: LISTEN", pcb->state != LISTEN); +#if LWIP_TCP_PCB_NUM_EXT_ARGS + tcp_ext_arg_invoke_callbacks_destroyed(pcb->ext_args); +#endif + memp_free(MEMP_TCP_PCB, pcb); +} + +/** Free a tcp listen pcb */ +static void +tcp_free_listen(struct tcp_pcb *pcb) +{ + LWIP_ASSERT("tcp_free_listen: !LISTEN", pcb->state != LISTEN); +#if LWIP_TCP_PCB_NUM_EXT_ARGS + tcp_ext_arg_invoke_callbacks_destroyed(pcb->ext_args); +#endif + memp_free(MEMP_TCP_PCB_LISTEN, pcb); +} + +/** + * Called periodically to dispatch TCP timers. + */ +void +tcp_tmr(void) +{ + /* Call tcp_fasttmr() every 250 ms */ + tcp_fasttmr(); + + if (++tcp_timer & 1) { + /* Call tcp_slowtmr() every 500 ms, i.e., every other timer + tcp_tmr() is called. */ + tcp_slowtmr(); + } +} + +#if LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG +/** Called when a listen pcb is closed. Iterates one pcb list and removes the + * closed listener pcb from pcb->listener if matching. + */ +static void +tcp_remove_listener(struct tcp_pcb *list, struct tcp_pcb_listen *lpcb) +{ + struct tcp_pcb *pcb; + + LWIP_ASSERT("tcp_remove_listener: invalid listener", lpcb != NULL); + + for (pcb = list; pcb != NULL; pcb = pcb->next) { + if (pcb->listener == lpcb) { + pcb->listener = NULL; + } + } +} +#endif + +/** Called when a listen pcb is closed. Iterates all pcb lists and removes the + * closed listener pcb from pcb->listener if matching. + */ +static void +tcp_listen_closed(struct tcp_pcb *pcb) +{ +#if LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG + size_t i; + LWIP_ASSERT("pcb != NULL", pcb != NULL); + LWIP_ASSERT("pcb->state == LISTEN", pcb->state == LISTEN); + for (i = 1; i < LWIP_ARRAYSIZE(tcp_pcb_lists); i++) { + tcp_remove_listener(*tcp_pcb_lists[i], (struct tcp_pcb_listen *)pcb); + } +#endif + LWIP_UNUSED_ARG(pcb); +} + +#if TCP_LISTEN_BACKLOG +/** @ingroup tcp_raw + * Delay accepting a connection in respect to the listen backlog: + * the number of outstanding connections is increased until + * tcp_backlog_accepted() is called. + * + * ATTENTION: the caller is responsible for calling tcp_backlog_accepted() + * or else the backlog feature will get out of sync! + * + * @param pcb the connection pcb which is not fully accepted yet + */ +void +tcp_backlog_delayed(struct tcp_pcb *pcb) +{ + LWIP_ASSERT("pcb != NULL", pcb != NULL); + LWIP_ASSERT_CORE_LOCKED(); + if ((pcb->flags & TF_BACKLOGPEND) == 0) { + if (pcb->listener != NULL) { + pcb->listener->accepts_pending++; + LWIP_ASSERT("accepts_pending != 0", pcb->listener->accepts_pending != 0); + tcp_set_flags(pcb, TF_BACKLOGPEND); + } + } +} + +/** @ingroup tcp_raw + * A delayed-accept a connection is accepted (or closed/aborted): decreases + * the number of outstanding connections after calling tcp_backlog_delayed(). + * + * ATTENTION: the caller is responsible for calling tcp_backlog_accepted() + * or else the backlog feature will get out of sync! + * + * @param pcb the connection pcb which is now fully accepted (or closed/aborted) + */ +void +tcp_backlog_accepted(struct tcp_pcb *pcb) +{ + LWIP_ASSERT("pcb != NULL", pcb != NULL); + LWIP_ASSERT_CORE_LOCKED(); + if ((pcb->flags & TF_BACKLOGPEND) != 0) { + if (pcb->listener != NULL) { + LWIP_ASSERT("accepts_pending != 0", pcb->listener->accepts_pending != 0); + pcb->listener->accepts_pending--; + tcp_clear_flags(pcb, TF_BACKLOGPEND); + } + } +} +#endif /* TCP_LISTEN_BACKLOG */ + +/** + * Closes the TX side of a connection held by the PCB. + * For tcp_close(), a RST is sent if the application didn't receive all data + * (tcp_recved() not called for all data passed to recv callback). + * + * Listening pcbs are freed and may not be referenced any more. + * Connection pcbs are freed if not yet connected and may not be referenced + * any more. If a connection is established (at least SYN received or in + * a closing state), the connection is closed, and put in a closing state. + * The pcb is then automatically freed in tcp_slowtmr(). It is therefore + * unsafe to reference it. + * + * @param pcb the tcp_pcb to close + * @return ERR_OK if connection has been closed + * another err_t if closing failed and pcb is not freed + */ +static err_t +tcp_close_shutdown(struct tcp_pcb *pcb, u8_t rst_on_unacked_data) +{ + LWIP_ASSERT("tcp_close_shutdown: invalid pcb", pcb != NULL); + + if (rst_on_unacked_data && ((pcb->state == ESTABLISHED) || (pcb->state == CLOSE_WAIT))) { + if ((pcb->refused_data != NULL) || (pcb->rcv_wnd != TCP_WND_MAX(pcb))) { + /* Not all data received by application, send RST to tell the remote + side about this. */ + LWIP_ASSERT("pcb->flags & TF_RXCLOSED", pcb->flags & TF_RXCLOSED); + + /* don't call tcp_abort here: we must not deallocate the pcb since + that might not be expected when calling tcp_close */ + tcp_rst(pcb, pcb->snd_nxt, pcb->rcv_nxt, &pcb->local_ip, &pcb->remote_ip, + pcb->local_port, pcb->remote_port); + + tcp_pcb_purge(pcb); + TCP_RMV_ACTIVE(pcb); + /* Deallocate the pcb since we already sent a RST for it */ + if (tcp_input_pcb == pcb) { + /* prevent using a deallocated pcb: free it from tcp_input later */ + tcp_trigger_input_pcb_close(); + } else { + tcp_free(pcb); + } + return ERR_OK; + } + } + + /* - states which free the pcb are handled here, + - states which send FIN and change state are handled in tcp_close_shutdown_fin() */ + switch (pcb->state) { + case CLOSED: + /* Closing a pcb in the CLOSED state might seem erroneous, + * however, it is in this state once allocated and as yet unused + * and the user needs some way to free it should the need arise. + * Calling tcp_close() with a pcb that has already been closed, (i.e. twice) + * or for a pcb that has been used and then entered the CLOSED state + * is erroneous, but this should never happen as the pcb has in those cases + * been freed, and so any remaining handles are bogus. */ + if (pcb->local_port != 0) { + TCP_RMV(&tcp_bound_pcbs, pcb); + } + tcp_free(pcb); + break; + case LISTEN: + tcp_listen_closed(pcb); + tcp_pcb_remove(&tcp_listen_pcbs.pcbs, pcb); + tcp_free_listen(pcb); + break; + case SYN_SENT: + TCP_PCB_REMOVE_ACTIVE(pcb); + tcp_free(pcb); + MIB2_STATS_INC(mib2.tcpattemptfails); + break; + default: + return tcp_close_shutdown_fin(pcb); + } + return ERR_OK; +} + +static err_t +tcp_close_shutdown_fin(struct tcp_pcb *pcb) +{ + err_t err; + LWIP_ASSERT("pcb != NULL", pcb != NULL); + + switch (pcb->state) { + case SYN_RCVD: + err = tcp_send_fin(pcb); + if (err == ERR_OK) { + tcp_backlog_accepted(pcb); + MIB2_STATS_INC(mib2.tcpattemptfails); + pcb->state = FIN_WAIT_1; + } + break; + case ESTABLISHED: + err = tcp_send_fin(pcb); + if (err == ERR_OK) { + MIB2_STATS_INC(mib2.tcpestabresets); + pcb->state = FIN_WAIT_1; + } + break; + case CLOSE_WAIT: + err = tcp_send_fin(pcb); + if (err == ERR_OK) { + MIB2_STATS_INC(mib2.tcpestabresets); + pcb->state = LAST_ACK; + } + break; + default: + /* Has already been closed, do nothing. */ + return ERR_OK; + } + + if (err == ERR_OK) { + /* To ensure all data has been sent when tcp_close returns, we have + to make sure tcp_output doesn't fail. + Since we don't really have to ensure all data has been sent when tcp_close + returns (unsent data is sent from tcp timer functions, also), we don't care + for the return value of tcp_output for now. */ + tcp_output(pcb); + } else if (err == ERR_MEM) { + /* Mark this pcb for closing. Closing is retried from tcp_tmr. */ + tcp_set_flags(pcb, TF_CLOSEPEND); + /* We have to return ERR_OK from here to indicate to the callers that this + pcb should not be used any more as it will be freed soon via tcp_tmr. + This is OK here since sending FIN does not guarantee a time frime for + actually freeing the pcb, either (it is left in closure states for + remote ACK or timeout) */ + return ERR_OK; + } + return err; +} + +/** + * @ingroup tcp_raw + * Closes the connection held by the PCB. + * + * Listening pcbs are freed and may not be referenced any more. + * Connection pcbs are freed if not yet connected and may not be referenced + * any more. If a connection is established (at least SYN received or in + * a closing state), the connection is closed, and put in a closing state. + * The pcb is then automatically freed in tcp_slowtmr(). It is therefore + * unsafe to reference it (unless an error is returned). + * + * The function may return ERR_MEM if no memory + * was available for closing the connection. If so, the application + * should wait and try again either by using the acknowledgment + * callback or the polling functionality. If the close succeeds, the + * function returns ERR_OK. + * + * @param pcb the tcp_pcb to close + * @return ERR_OK if connection has been closed + * another err_t if closing failed and pcb is not freed + */ +err_t +tcp_close(struct tcp_pcb *pcb) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("tcp_close: invalid pcb", pcb != NULL, return ERR_ARG); + LWIP_DEBUGF(TCP_DEBUG, ("tcp_close: closing in ")); + + tcp_debug_print_state(pcb->state); + + if (pcb->state != LISTEN) { + /* Set a flag not to receive any more data... */ + tcp_set_flags(pcb, TF_RXCLOSED); + } + /* ... and close */ + return tcp_close_shutdown(pcb, 1); +} + +/** + * @ingroup tcp_raw + * Causes all or part of a full-duplex connection of this PCB to be shut down. + * This doesn't deallocate the PCB unless shutting down both sides! + * Shutting down both sides is the same as calling tcp_close, so if it succeeds + * (i.e. returns ER_OK), the PCB must not be referenced any more! + * + * @param pcb PCB to shutdown + * @param shut_rx shut down receive side if this is != 0 + * @param shut_tx shut down send side if this is != 0 + * @return ERR_OK if shutdown succeeded (or the PCB has already been shut down) + * another err_t on error. + */ +err_t +tcp_shutdown(struct tcp_pcb *pcb, int shut_rx, int shut_tx) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("tcp_shutdown: invalid pcb", pcb != NULL, return ERR_ARG); + + if (pcb->state == LISTEN) { + return ERR_CONN; + } + if (shut_rx) { + /* shut down the receive side: set a flag not to receive any more data... */ + tcp_set_flags(pcb, TF_RXCLOSED); + if (shut_tx) { + /* shutting down the tx AND rx side is the same as closing for the raw API */ + return tcp_close_shutdown(pcb, 1); + } + /* ... and free buffered data */ + if (pcb->refused_data != NULL) { + pbuf_free(pcb->refused_data); + pcb->refused_data = NULL; + } + } + if (shut_tx) { + /* This can't happen twice since if it succeeds, the pcb's state is changed. + Only close in these states as the others directly deallocate the PCB */ + switch (pcb->state) { + case SYN_RCVD: + case ESTABLISHED: + case CLOSE_WAIT: + return tcp_close_shutdown(pcb, (u8_t)shut_rx); + default: + /* Not (yet?) connected, cannot shutdown the TX side as that would bring us + into CLOSED state, where the PCB is deallocated. */ + return ERR_CONN; + } + } + return ERR_OK; +} + +/** + * Abandons a connection and optionally sends a RST to the remote + * host. Deletes the local protocol control block. This is done when + * a connection is killed because of shortage of memory. + * + * @param pcb the tcp_pcb to abort + * @param reset boolean to indicate whether a reset should be sent + */ +void +tcp_abandon(struct tcp_pcb *pcb, int reset) +{ + u32_t seqno, ackno; +#if LWIP_CALLBACK_API + tcp_err_fn errf; +#endif /* LWIP_CALLBACK_API */ + void *errf_arg; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("tcp_abandon: invalid pcb", pcb != NULL, return); + + /* pcb->state LISTEN not allowed here */ + LWIP_ASSERT("don't call tcp_abort/tcp_abandon for listen-pcbs", + pcb->state != LISTEN); + /* Figure out on which TCP PCB list we are, and remove us. If we + are in an active state, call the receive function associated with + the PCB with a NULL argument, and send an RST to the remote end. */ + if (pcb->state == TIME_WAIT) { + tcp_pcb_remove(&tcp_tw_pcbs, pcb); + tcp_free(pcb); + } else { + int send_rst = 0; + u16_t local_port = 0; + enum tcp_state last_state; + seqno = pcb->snd_nxt; + ackno = pcb->rcv_nxt; +#if LWIP_CALLBACK_API + errf = pcb->errf; +#endif /* LWIP_CALLBACK_API */ + errf_arg = pcb->callback_arg; + if (pcb->state == CLOSED) { + if (pcb->local_port != 0) { + /* bound, not yet opened */ + TCP_RMV(&tcp_bound_pcbs, pcb); + } + } else { + send_rst = reset; + local_port = pcb->local_port; + TCP_PCB_REMOVE_ACTIVE(pcb); + } + if (pcb->unacked != NULL) { + tcp_segs_free(pcb->unacked); + } + if (pcb->unsent != NULL) { + tcp_segs_free(pcb->unsent); + } +#if TCP_QUEUE_OOSEQ + if (pcb->ooseq != NULL) { + tcp_segs_free(pcb->ooseq); + } +#endif /* TCP_QUEUE_OOSEQ */ + tcp_backlog_accepted(pcb); + if (send_rst) { + LWIP_DEBUGF(TCP_RST_DEBUG, ("tcp_abandon: sending RST\n")); + tcp_rst(pcb, seqno, ackno, &pcb->local_ip, &pcb->remote_ip, local_port, pcb->remote_port); + } + last_state = pcb->state; + tcp_free(pcb); + TCP_EVENT_ERR(last_state, errf, errf_arg, ERR_ABRT); + } +} + +/** + * @ingroup tcp_raw + * Aborts the connection by sending a RST (reset) segment to the remote + * host. The pcb is deallocated. This function never fails. + * + * ATTENTION: When calling this from one of the TCP callbacks, make + * sure you always return ERR_ABRT (and never return ERR_ABRT otherwise + * or you will risk accessing deallocated memory or memory leaks! + * + * @param pcb the tcp pcb to abort + */ +void +tcp_abort(struct tcp_pcb *pcb) +{ + tcp_abandon(pcb, 1); +} + +/** + * @ingroup tcp_raw + * Binds the connection to a local port number and IP address. If the + * IP address is not given (i.e., ipaddr == IP_ANY_TYPE), the connection is + * bound to all local IP addresses. + * If another connection is bound to the same port, the function will + * return ERR_USE, otherwise ERR_OK is returned. + * @see MEMP_NUM_TCP_PCB_LISTEN and MEMP_NUM_TCP_PCB + * + * @param pcb the tcp_pcb to bind (no check is done whether this pcb is + * already bound!) + * @param ipaddr the local ip address to bind to (use IPx_ADDR_ANY to bind + * to any local address + * @param port the local port to bind to + * @return ERR_USE if the port is already in use + * ERR_VAL if bind failed because the PCB is not in a valid state + * ERR_OK if bound + */ +err_t +tcp_bind(struct tcp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port) +{ + int i; + int max_pcb_list = NUM_TCP_PCB_LISTS; + struct tcp_pcb *cpcb; +#if LWIP_IPV6 && LWIP_IPV6_SCOPES + ip_addr_t zoned_ipaddr; +#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ + + LWIP_ASSERT_CORE_LOCKED(); + +#if LWIP_IPV4 + /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ + if (ipaddr == NULL) { + ipaddr = IP4_ADDR_ANY; + } +#else /* LWIP_IPV4 */ + LWIP_ERROR("tcp_bind: invalid ipaddr", ipaddr != NULL, return ERR_ARG); +#endif /* LWIP_IPV4 */ + + LWIP_ERROR("tcp_bind: invalid pcb", pcb != NULL, return ERR_ARG); + + LWIP_ERROR("tcp_bind: can only bind in state CLOSED", pcb->state == CLOSED, return ERR_VAL); + +#if SO_REUSE + /* Unless the REUSEADDR flag is set, + we have to check the pcbs in TIME-WAIT state, also. + We do not dump TIME_WAIT pcb's; they can still be matched by incoming + packets using both local and remote IP addresses and ports to distinguish. + */ + if (ip_get_option(pcb, SOF_REUSEADDR)) { + max_pcb_list = NUM_TCP_PCB_LISTS_NO_TIME_WAIT; + } +#endif /* SO_REUSE */ + +#if LWIP_IPV6 && LWIP_IPV6_SCOPES + /* If the given IP address should have a zone but doesn't, assign one now. + * This is legacy support: scope-aware callers should always provide properly + * zoned source addresses. Do the zone selection before the address-in-use + * check below; as such we have to make a temporary copy of the address. */ + if (IP_IS_V6(ipaddr) && ip6_addr_lacks_zone(ip_2_ip6(ipaddr), IP6_UNICAST)) { + ip_addr_copy(zoned_ipaddr, *ipaddr); + ip6_addr_select_zone(ip_2_ip6(&zoned_ipaddr), ip_2_ip6(&zoned_ipaddr)); + ipaddr = &zoned_ipaddr; + } +#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ + + if (port == 0) { + port = tcp_new_port(); + if (port == 0) { + return ERR_BUF; + } + } else { + /* Check if the address already is in use (on all lists) */ + for (i = 0; i < max_pcb_list; i++) { + for (cpcb = *tcp_pcb_lists[i]; cpcb != NULL; cpcb = cpcb->next) { + if (cpcb->local_port == port) { +#if SO_REUSE + /* Omit checking for the same port if both pcbs have REUSEADDR set. + For SO_REUSEADDR, the duplicate-check for a 5-tuple is done in + tcp_connect. */ + if (!ip_get_option(pcb, SOF_REUSEADDR) || + !ip_get_option(cpcb, SOF_REUSEADDR)) +#endif /* SO_REUSE */ + { + /* @todo: check accept_any_ip_version */ + if ((IP_IS_V6(ipaddr) == IP_IS_V6_VAL(cpcb->local_ip)) && + (ip_addr_isany(&cpcb->local_ip) || + ip_addr_isany(ipaddr) || + ip_addr_eq(&cpcb->local_ip, ipaddr))) { + return ERR_USE; + } + } + } + } + } + } + + if (!ip_addr_isany(ipaddr) +#if LWIP_IPV4 && LWIP_IPV6 + || (IP_GET_TYPE(ipaddr) != IP_GET_TYPE(&pcb->local_ip)) +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + ) { + ip_addr_set(&pcb->local_ip, ipaddr); + } + pcb->local_port = port; + TCP_REG(&tcp_bound_pcbs, pcb); + LWIP_DEBUGF(TCP_DEBUG, ("tcp_bind: bind to port %"U16_F"\n", port)); + return ERR_OK; +} + +/** + * @ingroup tcp_raw + * Binds the connection to a netif and IP address. + * After calling this function, all packets received via this PCB + * are guaranteed to have come in via the specified netif, and all + * outgoing packets will go out via the specified netif. + * + * @param pcb the tcp_pcb to bind. + * @param netif the netif to bind to. Can be NULL. + */ +void +tcp_bind_netif(struct tcp_pcb *pcb, const struct netif *netif) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (netif != NULL) { + pcb->netif_idx = netif_get_index(netif); + } else { + pcb->netif_idx = NETIF_NO_INDEX; + } +} + +#if LWIP_CALLBACK_API +/** + * Default accept callback if no accept callback is specified by the user. + */ +static err_t +tcp_accept_null(void *arg, struct tcp_pcb *pcb, err_t err) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(err); + + LWIP_ASSERT("tcp_accept_null: invalid pcb", pcb != NULL); + + tcp_abort(pcb); + + return ERR_ABRT; +} +#endif /* LWIP_CALLBACK_API */ + +/** + * @ingroup tcp_raw + * Set the state of the connection to be LISTEN, which means that it + * is able to accept incoming connections. The protocol control block + * is reallocated in order to consume less memory. Setting the + * connection to LISTEN is an irreversible process. + * When an incoming connection is accepted, the function specified with + * the tcp_accept() function will be called. The pcb has to be bound + * to a local port with the tcp_bind() function. + * + * The tcp_listen() function returns a new connection identifier, and + * the one passed as an argument to the function will be + * deallocated. The reason for this behavior is that less memory is + * needed for a connection that is listening, so tcp_listen() will + * reclaim the memory needed for the original connection and allocate a + * new smaller memory block for the listening connection. + * + * tcp_listen() may return NULL if no memory was available for the + * listening connection. If so, the memory associated with the pcb + * passed as an argument to tcp_listen() will not be deallocated. + * + * The backlog limits the number of outstanding connections + * in the listen queue to the value specified by the backlog argument. + * To use it, your need to set TCP_LISTEN_BACKLOG=1 in your lwipopts.h. + * + * @param pcb the original tcp_pcb + * @param backlog the incoming connections queue limit + * @return tcp_pcb used for listening, consumes less memory. + * + * @note The original tcp_pcb is freed. This function therefore has to be + * called like this: + * tpcb = tcp_listen_with_backlog(tpcb, backlog); + */ +struct tcp_pcb * +tcp_listen_with_backlog(struct tcp_pcb *pcb, u8_t backlog) +{ + LWIP_ASSERT_CORE_LOCKED(); + return tcp_listen_with_backlog_and_err(pcb, backlog, NULL); +} + +/** + * @ingroup tcp_raw + * Set the state of the connection to be LISTEN, which means that it + * is able to accept incoming connections. The protocol control block + * is reallocated in order to consume less memory. Setting the + * connection to LISTEN is an irreversible process. + * + * @param pcb the original tcp_pcb + * @param backlog the incoming connections queue limit + * @param err when NULL is returned, this contains the error reason + * @return tcp_pcb used for listening, consumes less memory. + * + * @note The original tcp_pcb is freed. This function therefore has to be + * called like this: + * tpcb = tcp_listen_with_backlog_and_err(tpcb, backlog, &err); + */ +struct tcp_pcb * +tcp_listen_with_backlog_and_err(struct tcp_pcb *pcb, u8_t backlog, err_t *err) +{ + struct tcp_pcb_listen *lpcb = NULL; + err_t res; + + LWIP_UNUSED_ARG(backlog); + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("tcp_listen_with_backlog_and_err: invalid pcb", pcb != NULL, res = ERR_ARG; goto done); + LWIP_ERROR("tcp_listen_with_backlog_and_err: pcb already connected", pcb->state == CLOSED, res = ERR_CLSD; goto done); + + /* already listening? */ + if (pcb->state == LISTEN) { + lpcb = (struct tcp_pcb_listen *)pcb; + res = ERR_ALREADY; + goto done; + } +#if SO_REUSE + if (ip_get_option(pcb, SOF_REUSEADDR)) { + /* Since SOF_REUSEADDR allows reusing a local address before the pcb's usage + is declared (listen-/connection-pcb), we have to make sure now that + this port is only used once for every local IP. */ + for (lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) { + if ((lpcb->local_port == pcb->local_port) && + ip_addr_eq(&lpcb->local_ip, &pcb->local_ip)) { + /* this address/port is already used */ + lpcb = NULL; + res = ERR_USE; + goto done; + } + } + } +#endif /* SO_REUSE */ + lpcb = (struct tcp_pcb_listen *)memp_malloc(MEMP_TCP_PCB_LISTEN); + if (lpcb == NULL) { + res = ERR_MEM; + goto done; + } + lpcb->callback_arg = pcb->callback_arg; + lpcb->local_port = pcb->local_port; + lpcb->state = LISTEN; + lpcb->prio = pcb->prio; + lpcb->so_options = pcb->so_options; + lpcb->netif_idx = NETIF_NO_INDEX; + lpcb->ttl = pcb->ttl; + lpcb->tos = pcb->tos; +#if LWIP_VLAN_PCP + lpcb->netif_hints.tci = pcb->netif_hints.tci; +#endif /* LWIP_VLAN_PCP */ +#if LWIP_IPV4 && LWIP_IPV6 + IP_SET_TYPE_VAL(lpcb->remote_ip, pcb->local_ip.type); +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + ip_addr_copy(lpcb->local_ip, pcb->local_ip); + if (pcb->local_port != 0) { + TCP_RMV(&tcp_bound_pcbs, pcb); + } +#if LWIP_TCP_PCB_NUM_EXT_ARGS + /* copy over ext_args to listening pcb */ + memcpy(&lpcb->ext_args, &pcb->ext_args, sizeof(pcb->ext_args)); +#endif + tcp_free(pcb); +#if LWIP_CALLBACK_API + lpcb->accept = tcp_accept_null; +#endif /* LWIP_CALLBACK_API */ +#if TCP_LISTEN_BACKLOG + lpcb->accepts_pending = 0; + tcp_backlog_set(lpcb, backlog); +#endif /* TCP_LISTEN_BACKLOG */ + TCP_REG(&tcp_listen_pcbs.pcbs, (struct tcp_pcb *)lpcb); + res = ERR_OK; +done: + if (err != NULL) { + *err = res; + } + return (struct tcp_pcb *)lpcb; +} + +/** + * Update the state that tracks the available window space to advertise. + * + * Returns how much extra window would be advertised if we sent an + * update now. + */ +u32_t +tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb) +{ + u32_t new_right_edge; + + LWIP_ASSERT("tcp_update_rcv_ann_wnd: invalid pcb", pcb != NULL); + new_right_edge = pcb->rcv_nxt + pcb->rcv_wnd; + + if (TCP_SEQ_GEQ(new_right_edge, pcb->rcv_ann_right_edge + LWIP_MIN((TCP_WND / 2), pcb->mss))) { + /* we can advertise more window */ + pcb->rcv_ann_wnd = pcb->rcv_wnd; + return new_right_edge - pcb->rcv_ann_right_edge; + } else { + if (TCP_SEQ_GT(pcb->rcv_nxt, pcb->rcv_ann_right_edge)) { + /* Can happen due to other end sending out of advertised window, + * but within actual available (but not yet advertised) window */ + pcb->rcv_ann_wnd = 0; + } else { + /* keep the right edge of window constant */ + u32_t new_rcv_ann_wnd = pcb->rcv_ann_right_edge - pcb->rcv_nxt; +#if !LWIP_WND_SCALE + LWIP_ASSERT("new_rcv_ann_wnd <= 0xffff", new_rcv_ann_wnd <= 0xffff); +#endif + pcb->rcv_ann_wnd = (tcpwnd_size_t)new_rcv_ann_wnd; + } + return 0; + } +} + +/** + * @ingroup tcp_raw + * This function should be called by the application when it has + * processed the data. The purpose is to advertise a larger window + * when the data has been processed. + * + * @param pcb the tcp_pcb for which data is read + * @param len the amount of bytes that have been read by the application + */ +void +tcp_recved(struct tcp_pcb *pcb, u16_t len) +{ + u32_t wnd_inflation; + tcpwnd_size_t rcv_wnd; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("tcp_recved: invalid pcb", pcb != NULL, return); + + /* pcb->state LISTEN not allowed here */ + LWIP_ASSERT("don't call tcp_recved for listen-pcbs", + pcb->state != LISTEN); + + rcv_wnd = (tcpwnd_size_t)(pcb->rcv_wnd + len); + if ((rcv_wnd > TCP_WND_MAX(pcb)) || (rcv_wnd < pcb->rcv_wnd)) { + /* window got too big or tcpwnd_size_t overflow */ + LWIP_DEBUGF(TCP_DEBUG, ("tcp_recved: window got too big or tcpwnd_size_t overflow\n")); + pcb->rcv_wnd = TCP_WND_MAX(pcb); + } else { + pcb->rcv_wnd = rcv_wnd; + } + + wnd_inflation = tcp_update_rcv_ann_wnd(pcb); + + /* If the change in the right edge of window is significant (default + * watermark is TCP_WND/4), then send an explicit update now. + * Otherwise wait for a packet to be sent in the normal course of + * events (or more window to be available later) */ + if (wnd_inflation >= TCP_WND_UPDATE_THRESHOLD) { + tcp_ack_now(pcb); + tcp_output(pcb); + } + + LWIP_DEBUGF(TCP_DEBUG, ("tcp_recved: received %"U16_F" bytes, wnd %"TCPWNDSIZE_F" (%"TCPWNDSIZE_F").\n", + len, pcb->rcv_wnd, (u16_t)(TCP_WND_MAX(pcb) - pcb->rcv_wnd))); +} + +/** + * Allocate a new local TCP port. + * + * @return a new (free) local TCP port number + */ +static u16_t +tcp_new_port(void) +{ + u8_t i; + u16_t n = 0; + struct tcp_pcb *pcb; + +again: + tcp_port++; + if (tcp_port == TCP_LOCAL_PORT_RANGE_END) { + tcp_port = TCP_LOCAL_PORT_RANGE_START; + } + /* Check all PCB lists. */ + for (i = 0; i < NUM_TCP_PCB_LISTS; i++) { + for (pcb = *tcp_pcb_lists[i]; pcb != NULL; pcb = pcb->next) { + if (pcb->local_port == tcp_port) { + n++; + if (n > (TCP_LOCAL_PORT_RANGE_END - TCP_LOCAL_PORT_RANGE_START)) { + return 0; + } + goto again; + } + } + } + return tcp_port; +} + +/** + * @ingroup tcp_raw + * Connects to another host. The function given as the "connected" + * argument will be called when the connection has been established. + * Sets up the pcb to connect to the remote host and sends the + * initial SYN segment which opens the connection. + * + * The tcp_connect() function returns immediately; it does not wait for + * the connection to be properly setup. Instead, it will call the + * function specified as the fourth argument (the "connected" argument) + * when the connection is established. If the connection could not be + * properly established, either because the other host refused the + * connection or because the other host didn't answer, the "err" + * callback function of this pcb (registered with tcp_err, see below) + * will be called. + * + * The tcp_connect() function can return ERR_MEM if no memory is + * available for enqueueing the SYN segment. If the SYN indeed was + * enqueued successfully, the tcp_connect() function returns ERR_OK. + * + * @param pcb the tcp_pcb used to establish the connection + * @param ipaddr the remote ip address to connect to + * @param port the remote tcp port to connect to + * @param connected callback function to call when connected (on error, + the err callback will be called) + * @return ERR_VAL if invalid arguments are given + * ERR_OK if connect request has been sent + * other err_t values if connect request couldn't be sent + */ +err_t +tcp_connect(struct tcp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port, + tcp_connected_fn connected) +{ + struct netif *netif = NULL; + err_t ret; + u32_t iss; + u16_t old_local_port; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("tcp_connect: invalid pcb", pcb != NULL, return ERR_ARG); + LWIP_ERROR("tcp_connect: invalid ipaddr", ipaddr != NULL, return ERR_ARG); + + LWIP_ERROR("tcp_connect: can only connect from state CLOSED", pcb->state == CLOSED, return ERR_ISCONN); + + LWIP_DEBUGF(TCP_DEBUG, ("tcp_connect to port %"U16_F"\n", port)); + ip_addr_set(&pcb->remote_ip, ipaddr); + pcb->remote_port = port; + + if (pcb->netif_idx != NETIF_NO_INDEX) { + netif = netif_get_by_index(pcb->netif_idx); + } else { + /* check if we have a route to the remote host */ + netif = ip_route(&pcb->local_ip, &pcb->remote_ip); + } + if (netif == NULL) { + /* Don't even try to send a SYN packet if we have no route since that will fail. */ + return ERR_RTE; + } + + /* check if local IP has been assigned to pcb, if not, get one */ + if (ip_addr_isany(&pcb->local_ip)) { + const ip_addr_t *local_ip = ip_netif_get_local_ip(netif, ipaddr); + if (local_ip == NULL) { + return ERR_RTE; + } + ip_addr_copy(pcb->local_ip, *local_ip); + } + +#if LWIP_IPV6 && LWIP_IPV6_SCOPES + /* If the given IP address should have a zone but doesn't, assign one now. + * Given that we already have the target netif, this is easy and cheap. */ + if (IP_IS_V6(&pcb->remote_ip) && + ip6_addr_lacks_zone(ip_2_ip6(&pcb->remote_ip), IP6_UNICAST)) { + ip6_addr_assign_zone(ip_2_ip6(&pcb->remote_ip), IP6_UNICAST, netif); + } +#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ + + old_local_port = pcb->local_port; + if (pcb->local_port == 0) { + pcb->local_port = tcp_new_port(); + if (pcb->local_port == 0) { + return ERR_BUF; + } + } else { +#if SO_REUSE + if (ip_get_option(pcb, SOF_REUSEADDR)) { + /* Since SOF_REUSEADDR allows reusing a local address, we have to make sure + now that the 5-tuple is unique. */ + struct tcp_pcb *cpcb; + int i; + /* Don't check listen- and bound-PCBs, check active- and TIME-WAIT PCBs. */ + for (i = 2; i < NUM_TCP_PCB_LISTS; i++) { + for (cpcb = *tcp_pcb_lists[i]; cpcb != NULL; cpcb = cpcb->next) { + if ((cpcb->local_port == pcb->local_port) && + (cpcb->remote_port == port) && + ip_addr_eq(&cpcb->local_ip, &pcb->local_ip) && + ip_addr_eq(&cpcb->remote_ip, ipaddr)) { + /* linux returns EISCONN here, but ERR_USE should be OK for us */ + return ERR_USE; + } + } + } + } +#endif /* SO_REUSE */ + } + + iss = tcp_next_iss(pcb); + pcb->rcv_nxt = 0; + pcb->snd_nxt = iss; + pcb->lastack = iss - 1; + pcb->snd_wl2 = iss - 1; + pcb->snd_lbb = iss - 1; + /* Start with a window that does not need scaling. When window scaling is + enabled and used, the window is enlarged when both sides agree on scaling. */ + pcb->rcv_wnd = pcb->rcv_ann_wnd = TCPWND_MIN16(TCP_WND); + pcb->rcv_ann_right_edge = pcb->rcv_nxt; + pcb->snd_wnd = TCP_WND; + /* As initial send MSS, we use TCP_MSS but limit it to 536. + The send MSS is updated when an MSS option is received. */ + pcb->mss = INITIAL_MSS; +#if TCP_CALCULATE_EFF_SEND_MSS + pcb->mss = tcp_eff_send_mss_netif(pcb->mss, netif, &pcb->remote_ip); +#endif /* TCP_CALCULATE_EFF_SEND_MSS */ + pcb->cwnd = 1; +#if LWIP_CALLBACK_API + pcb->connected = connected; +#else /* LWIP_CALLBACK_API */ + LWIP_UNUSED_ARG(connected); +#endif /* LWIP_CALLBACK_API */ + + /* Send a SYN together with the MSS option. */ + ret = tcp_enqueue_flags(pcb, TCP_SYN); + if (ret == ERR_OK) { + /* SYN segment was enqueued, changed the pcbs state now */ + pcb->state = SYN_SENT; + if (old_local_port != 0) { + TCP_RMV(&tcp_bound_pcbs, pcb); + } + TCP_REG_ACTIVE(pcb); + MIB2_STATS_INC(mib2.tcpactiveopens); + + tcp_output(pcb); + } + return ret; +} + +/** + * Called every 500 ms and implements the retransmission timer and the timer that + * removes PCBs that have been in TIME-WAIT for enough time. It also increments + * various timers such as the inactivity timer in each PCB. + * + * Automatically called from tcp_tmr(). + */ +void +tcp_slowtmr(void) +{ + struct tcp_pcb *pcb, *prev; + tcpwnd_size_t eff_wnd; + u8_t pcb_remove; /* flag if a PCB should be removed */ + u8_t pcb_reset; /* flag if a RST should be sent when removing */ + err_t err; + + err = ERR_OK; + + ++tcp_ticks; + ++tcp_timer_ctr; + +tcp_slowtmr_start: + /* Steps through all of the active PCBs. */ + prev = NULL; + pcb = tcp_active_pcbs; + if (pcb == NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: no active pcbs\n")); + } + while (pcb != NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: processing active pcb\n")); + LWIP_ASSERT("tcp_slowtmr: active pcb->state != CLOSED", pcb->state != CLOSED); + LWIP_ASSERT("tcp_slowtmr: active pcb->state != LISTEN", pcb->state != LISTEN); + LWIP_ASSERT("tcp_slowtmr: active pcb->state != TIME-WAIT", pcb->state != TIME_WAIT); + if (pcb->last_timer == tcp_timer_ctr) { + /* skip this pcb, we have already processed it */ + prev = pcb; + pcb = pcb->next; + continue; + } + pcb->last_timer = tcp_timer_ctr; + + pcb_remove = 0; + pcb_reset = 0; + + if (pcb->state == SYN_SENT && pcb->nrtx >= TCP_SYNMAXRTX) { + ++pcb_remove; + LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: max SYN retries reached\n")); + } else if (pcb->nrtx >= TCP_MAXRTX) { + ++pcb_remove; + LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: max DATA retries reached\n")); + } else { + if (pcb->persist_backoff > 0) { + LWIP_ASSERT("tcp_slowtimr: persist ticking with in-flight data", pcb->unacked == NULL); + LWIP_ASSERT("tcp_slowtimr: persist ticking with empty send buffer", pcb->unsent != NULL); + if (pcb->persist_probe >= TCP_MAXRTX) { + ++pcb_remove; /* max probes reached */ + } else { + u8_t backoff_cnt = tcp_persist_backoff[pcb->persist_backoff - 1]; + if (pcb->persist_cnt < backoff_cnt) { + pcb->persist_cnt++; + } + if (pcb->persist_cnt >= backoff_cnt) { + int next_slot = 1; /* increment timer to next slot */ + /* If snd_wnd is zero, send 1 byte probes */ + if (pcb->snd_wnd == 0) { + if (tcp_zero_window_probe(pcb) != ERR_OK) { + next_slot = 0; /* try probe again with current slot */ + } + /* snd_wnd not fully closed, split unsent head and fill window */ + } else { + if (tcp_split_unsent_seg(pcb, (u16_t)pcb->snd_wnd) == ERR_OK) { + if (tcp_output(pcb) == ERR_OK) { + /* sending will cancel persist timer, else retry with current slot */ + next_slot = 0; + } + } + } + if (next_slot) { + pcb->persist_cnt = 0; + if (pcb->persist_backoff < sizeof(tcp_persist_backoff)) { + pcb->persist_backoff++; + } + } + } + } + } else { + /* Increase the retransmission timer if it is running */ + if ((pcb->rtime >= 0) && (pcb->rtime < 0x7FFF)) { + ++pcb->rtime; + } + + if (pcb->rtime >= pcb->rto) { + /* Time for a retransmission. */ + LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_slowtmr: rtime %"S16_F + " pcb->rto %"S16_F"\n", + pcb->rtime, pcb->rto)); + /* If prepare phase fails but we have unsent data but no unacked data, + still execute the backoff calculations below, as this means we somehow + failed to send segment. */ + if ((tcp_rexmit_rto_prepare(pcb) == ERR_OK) || ((pcb->unacked == NULL) && (pcb->unsent != NULL))) { + /* Double retransmission time-out unless we are trying to + * connect to somebody (i.e., we are in SYN_SENT). */ + if (pcb->state != SYN_SENT) { + u8_t backoff_idx = LWIP_MIN(pcb->nrtx, sizeof(tcp_backoff) - 1); + int calc_rto = ((pcb->sa >> 3) + pcb->sv) << tcp_backoff[backoff_idx]; + pcb->rto = (s16_t)LWIP_MIN(calc_rto, 0x7FFF); + } + + /* Reset the retransmission timer. */ + pcb->rtime = 0; + + /* Reduce congestion window and ssthresh. */ + eff_wnd = LWIP_MIN(pcb->cwnd, pcb->snd_wnd); + pcb->ssthresh = eff_wnd >> 1; + if (pcb->ssthresh < (tcpwnd_size_t)(pcb->mss << 1)) { + pcb->ssthresh = (tcpwnd_size_t)(pcb->mss << 1); + } + pcb->cwnd = pcb->mss; + LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_slowtmr: cwnd %"TCPWNDSIZE_F + " ssthresh %"TCPWNDSIZE_F"\n", + pcb->cwnd, pcb->ssthresh)); + pcb->bytes_acked = 0; + + /* The following needs to be called AFTER cwnd is set to one + mss - STJ */ + tcp_rexmit_rto_commit(pcb); + } + } + } + } + /* Check if this PCB has stayed too long in FIN-WAIT-2 */ + if (pcb->state == FIN_WAIT_2) { + /* If this PCB is in FIN_WAIT_2 because of SHUT_WR don't let it time out. */ + if (pcb->flags & TF_RXCLOSED) { + /* PCB was fully closed (either through close() or SHUT_RDWR): + normal FIN-WAIT timeout handling. */ + if ((u32_t)(tcp_ticks - pcb->tmr) > + TCP_FIN_WAIT_TIMEOUT / TCP_SLOW_INTERVAL) { + ++pcb_remove; + LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: removing pcb stuck in FIN-WAIT-2\n")); + } + } + } + + /* Check if KEEPALIVE should be sent */ + if (ip_get_option(pcb, SOF_KEEPALIVE) && + ((pcb->state == ESTABLISHED) || + (pcb->state == CLOSE_WAIT))) { + if ((u32_t)(tcp_ticks - pcb->tmr) > + (pcb->keep_idle + TCP_KEEP_DUR(pcb)) / TCP_SLOW_INTERVAL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: KEEPALIVE timeout. Aborting connection to ")); + ip_addr_debug_print_val(TCP_DEBUG, pcb->remote_ip); + LWIP_DEBUGF(TCP_DEBUG, ("\n")); + + ++pcb_remove; + ++pcb_reset; + } else if ((u32_t)(tcp_ticks - pcb->tmr) > + (pcb->keep_idle + pcb->keep_cnt_sent * TCP_KEEP_INTVL(pcb)) + / TCP_SLOW_INTERVAL) { + err = tcp_keepalive(pcb); + if (err == ERR_OK) { + pcb->keep_cnt_sent++; + } + } + } + +#if LWIP_TCP_USER_TIMEOUT + /* When user timeout is set and timeout occured, abort connection */ + if(pcb->user_timeout && pcb->rtime > 0 && pcb->rtime >= pcb->user_timeout) + { + /* Abort connection */ + ++pcb_remove; + ++pcb_reset; + } +#endif + + /* If this PCB has queued out of sequence data, but has been + inactive for too long, will drop the data (it will eventually + be retransmitted). */ +#if TCP_QUEUE_OOSEQ + if (pcb->ooseq != NULL && + (tcp_ticks - pcb->tmr >= (u32_t)pcb->rto * TCP_OOSEQ_TIMEOUT)) { + LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_slowtmr: dropping OOSEQ queued data\n")); + tcp_free_ooseq(pcb); + } +#endif /* TCP_QUEUE_OOSEQ */ + + /* Check if this PCB has stayed too long in SYN-RCVD */ + if (pcb->state == SYN_RCVD) { + if ((u32_t)(tcp_ticks - pcb->tmr) > + TCP_SYN_RCVD_TIMEOUT / TCP_SLOW_INTERVAL) { + ++pcb_remove; + LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: removing pcb stuck in SYN-RCVD\n")); + } + } + + /* Check if this PCB has stayed too long in LAST-ACK */ + if (pcb->state == LAST_ACK) { + if ((u32_t)(tcp_ticks - pcb->tmr) > 2 * TCP_MSL / TCP_SLOW_INTERVAL) { + ++pcb_remove; + LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: removing pcb stuck in LAST-ACK\n")); + } + } + + /* If the PCB should be removed, do it. */ + if (pcb_remove) { + struct tcp_pcb *pcb2; +#if LWIP_CALLBACK_API + tcp_err_fn err_fn = pcb->errf; +#endif /* LWIP_CALLBACK_API */ + void *err_arg; + enum tcp_state last_state; + tcp_pcb_purge(pcb); + /* Remove PCB from tcp_active_pcbs list. */ + if (prev != NULL) { + LWIP_ASSERT("tcp_slowtmr: middle tcp != tcp_active_pcbs", pcb != tcp_active_pcbs); + prev->next = pcb->next; + } else { + /* This PCB was the first. */ + LWIP_ASSERT("tcp_slowtmr: first pcb == tcp_active_pcbs", tcp_active_pcbs == pcb); + tcp_active_pcbs = pcb->next; + } + + if (pcb_reset) { + tcp_rst(pcb, pcb->snd_nxt, pcb->rcv_nxt, &pcb->local_ip, &pcb->remote_ip, + pcb->local_port, pcb->remote_port); + } + + err_arg = pcb->callback_arg; + last_state = pcb->state; + pcb2 = pcb; + pcb = pcb->next; + tcp_free(pcb2); + + tcp_active_pcbs_changed = 0; + TCP_EVENT_ERR(last_state, err_fn, err_arg, ERR_ABRT); + if (tcp_active_pcbs_changed) { + goto tcp_slowtmr_start; + } + } else { + /* get the 'next' element now and work with 'prev' below (in case of abort) */ + prev = pcb; + pcb = pcb->next; + + /* We check if we should poll the connection. */ + ++prev->polltmr; + if (prev->polltmr >= prev->pollinterval) { + prev->polltmr = 0; + LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: polling application\n")); + tcp_active_pcbs_changed = 0; + TCP_EVENT_POLL(prev, err); + if (tcp_active_pcbs_changed) { + goto tcp_slowtmr_start; + } + /* if err == ERR_ABRT, 'prev' is already deallocated */ + if (err == ERR_OK) { + tcp_output(prev); + } + } + } + } + + + /* Steps through all of the TIME-WAIT PCBs. */ + prev = NULL; + pcb = tcp_tw_pcbs; + while (pcb != NULL) { + LWIP_ASSERT("tcp_slowtmr: TIME-WAIT pcb->state == TIME-WAIT", pcb->state == TIME_WAIT); + pcb_remove = 0; + + /* Check if this PCB has stayed long enough in TIME-WAIT */ + if ((u32_t)(tcp_ticks - pcb->tmr) > 2 * TCP_MSL / TCP_SLOW_INTERVAL) { + ++pcb_remove; + } + + /* If the PCB should be removed, do it. */ + if (pcb_remove) { + struct tcp_pcb *pcb2; + tcp_pcb_purge(pcb); + /* Remove PCB from tcp_tw_pcbs list. */ + if (prev != NULL) { + LWIP_ASSERT("tcp_slowtmr: middle tcp != tcp_tw_pcbs", pcb != tcp_tw_pcbs); + prev->next = pcb->next; + } else { + /* This PCB was the first. */ + LWIP_ASSERT("tcp_slowtmr: first pcb == tcp_tw_pcbs", tcp_tw_pcbs == pcb); + tcp_tw_pcbs = pcb->next; + } + pcb2 = pcb; + pcb = pcb->next; + tcp_free(pcb2); + } else { + prev = pcb; + pcb = pcb->next; + } + } +} + +/** + * Is called every TCP_FAST_INTERVAL (250 ms) and process data previously + * "refused" by upper layer (application) and sends delayed ACKs or pending FINs. + * + * Automatically called from tcp_tmr(). + */ +void +tcp_fasttmr(void) +{ + struct tcp_pcb *pcb; + + ++tcp_timer_ctr; + +tcp_fasttmr_start: + pcb = tcp_active_pcbs; + + while (pcb != NULL) { + if (pcb->last_timer != tcp_timer_ctr) { + struct tcp_pcb *next; + pcb->last_timer = tcp_timer_ctr; + /* send delayed ACKs */ + if (pcb->flags & TF_ACK_DELAY) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_fasttmr: delayed ACK\n")); + tcp_ack_now(pcb); + tcp_output(pcb); + tcp_clear_flags(pcb, TF_ACK_DELAY | TF_ACK_NOW); + } + /* send pending FIN */ + if (pcb->flags & TF_CLOSEPEND) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_fasttmr: pending FIN\n")); + tcp_clear_flags(pcb, TF_CLOSEPEND); + tcp_close_shutdown_fin(pcb); + } + + next = pcb->next; + + /* If there is data which was previously "refused" by upper layer */ + if (pcb->refused_data != NULL) { + tcp_active_pcbs_changed = 0; + tcp_process_refused_data(pcb); + if (tcp_active_pcbs_changed) { + /* application callback has changed the pcb list: restart the loop */ + goto tcp_fasttmr_start; + } + } + pcb = next; + } else { + pcb = pcb->next; + } + } +} + +/** Call tcp_output for all active pcbs that have TF_NAGLEMEMERR set */ +void +tcp_txnow(void) +{ + struct tcp_pcb *pcb; + + for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { + if (pcb->flags & TF_NAGLEMEMERR) { + tcp_output(pcb); + } + } +} + +/** Pass pcb->refused_data to the recv callback */ +err_t +tcp_process_refused_data(struct tcp_pcb *pcb) +{ +#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE + struct pbuf *rest; +#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + + LWIP_ERROR("tcp_process_refused_data: invalid pcb", pcb != NULL, return ERR_ARG); + +#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE + while (pcb->refused_data != NULL) +#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + { + err_t err; + u8_t refused_flags = pcb->refused_data->flags; + /* set pcb->refused_data to NULL in case the callback frees it and then + closes the pcb */ + struct pbuf *refused_data = pcb->refused_data; +#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE + pbuf_split_64k(refused_data, &rest); + pcb->refused_data = rest; +#else /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + pcb->refused_data = NULL; +#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + /* Notify again application with data previously received. */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: notify kept packet\n")); + TCP_EVENT_RECV(pcb, refused_data, ERR_OK, err); + if (err == ERR_OK) { + /* did refused_data include a FIN? */ + if ((refused_flags & PBUF_FLAG_TCP_FIN) +#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE + && (rest == NULL) +#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + ) { + /* correct rcv_wnd as the application won't call tcp_recved() + for the FIN's seqno */ + if (pcb->rcv_wnd != TCP_WND_MAX(pcb)) { + pcb->rcv_wnd++; + } + TCP_EVENT_CLOSED(pcb, err); + if (err == ERR_ABRT) { + return ERR_ABRT; + } + } + } else if (err == ERR_ABRT) { + /* if err == ERR_ABRT, 'pcb' is already deallocated */ + /* Drop incoming packets because pcb is "full" (only if the incoming + segment contains data). */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: drop incoming packets, because pcb is \"full\"\n")); + return ERR_ABRT; + } else { + /* data is still refused, pbuf is still valid (go on for ACK-only packets) */ +#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE + if (rest != NULL) { + pbuf_cat(refused_data, rest); + } +#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + pcb->refused_data = refused_data; + return ERR_INPROGRESS; + } + } + return ERR_OK; +} + +/** + * Deallocates a list of TCP segments (tcp_seg structures). + * + * @param seg tcp_seg list of TCP segments to free + */ +void +tcp_segs_free(struct tcp_seg *seg) +{ + while (seg != NULL) { + struct tcp_seg *next = seg->next; + tcp_seg_free(seg); + seg = next; + } +} + +/** + * Frees a TCP segment (tcp_seg structure). + * + * @param seg single tcp_seg to free + */ +void +tcp_seg_free(struct tcp_seg *seg) +{ + if (seg != NULL) { + if (seg->p != NULL) { + pbuf_free(seg->p); +#if TCP_DEBUG + seg->p = NULL; +#endif /* TCP_DEBUG */ + } + memp_free(MEMP_TCP_SEG, seg); + } +} + +/** + * @ingroup tcp + * Sets the priority of a connection. + * + * @param pcb the tcp_pcb to manipulate + * @param prio new priority + */ +void +tcp_setprio(struct tcp_pcb *pcb, u8_t prio) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("tcp_setprio: invalid pcb", pcb != NULL, return); + + pcb->prio = prio; +} + +#if TCP_QUEUE_OOSEQ +/** + * Returns a copy of the given TCP segment. + * The pbuf and data are not copied, only the pointers + * + * @param seg the old tcp_seg + * @return a copy of seg + */ +struct tcp_seg * +tcp_seg_copy(struct tcp_seg *seg) +{ + struct tcp_seg *cseg; + + LWIP_ASSERT("tcp_seg_copy: invalid seg", seg != NULL); + + cseg = (struct tcp_seg *)memp_malloc(MEMP_TCP_SEG); + if (cseg == NULL) { + return NULL; + } + SMEMCPY((u8_t *)cseg, (const u8_t *)seg, sizeof(struct tcp_seg)); + pbuf_ref(cseg->p); + return cseg; +} +#endif /* TCP_QUEUE_OOSEQ */ + +#if LWIP_SIOCOUTQ +int +tcp_seg_get_unacked_count(struct tcp_pcb *pcb) +{ + int unacked = 0; + + LWIP_ERROR("tcp_recv_null: invalid pcb", pcb != NULL, return ERR_ARG); + + if(pcb->unacked) + unacked += pcb->unacked->len; + if(pcb->unsent) + unacked += pcb->unsent->len; + + return unacked; +} +#endif /* LWIP_SIOCOUTQ */ + +#if LWIP_CALLBACK_API +/** + * Default receive callback that is called if the user didn't register + * a recv callback for the pcb. + */ +err_t +tcp_recv_null(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err) +{ + LWIP_UNUSED_ARG(arg); + + LWIP_ERROR("tcp_recv_null: invalid pcb", pcb != NULL, return ERR_ARG); + + if (p != NULL) { + tcp_recved(pcb, p->tot_len); + pbuf_free(p); + } else if (err == ERR_OK) { + return tcp_close(pcb); + } + return ERR_OK; +} +#endif /* LWIP_CALLBACK_API */ + +/** + * Kills the oldest active connection that has a lower priority than 'prio'. + * + * @param prio minimum priority + */ +static void +tcp_kill_prio(u8_t prio) +{ + struct tcp_pcb *pcb, *inactive; + u32_t inactivity; + u8_t mprio; + + mprio = LWIP_MIN(TCP_PRIO_MAX, prio); + + /* We want to kill connections with a lower prio, so bail out if + * supplied prio is 0 - there can never be a lower prio + */ + if (mprio == 0) { + return; + } + + /* We only want kill connections with a lower prio, so decrement prio by one + * and start searching for oldest connection with same or lower priority than mprio. + * We want to find the connections with the lowest possible prio, and among + * these the one with the longest inactivity time. + */ + mprio--; + + inactivity = 0; + inactive = NULL; + for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { + /* lower prio is always a kill candidate */ + if ((pcb->prio < mprio) || + /* longer inactivity is also a kill candidate */ + ((pcb->prio == mprio) && ((u32_t)(tcp_ticks - pcb->tmr) >= inactivity))) { + inactivity = tcp_ticks - pcb->tmr; + inactive = pcb; + mprio = pcb->prio; + } + } + if (inactive != NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_kill_prio: killing oldest PCB %p (%"S32_F")\n", + (void *)inactive, inactivity)); + tcp_abort(inactive); + } +} + +/** + * Kills the oldest connection that is in specific state. + * Called from tcp_alloc() for LAST_ACK and CLOSING if no more connections are available. + */ +static void +tcp_kill_state(enum tcp_state state) +{ + struct tcp_pcb *pcb, *inactive; + u32_t inactivity; + + LWIP_ASSERT("invalid state", (state == CLOSING) || (state == LAST_ACK)); + + inactivity = 0; + inactive = NULL; + /* Go through the list of active pcbs and get the oldest pcb that is in state + CLOSING/LAST_ACK. */ + for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { + if (pcb->state == state) { + if ((u32_t)(tcp_ticks - pcb->tmr) >= inactivity) { + inactivity = tcp_ticks - pcb->tmr; + inactive = pcb; + } + } + } + if (inactive != NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_kill_closing: killing oldest %s PCB %p (%"S32_F")\n", + tcp_state_str[state], (void *)inactive, inactivity)); + /* Don't send a RST, since no data is lost. */ + tcp_abandon(inactive, 0); + } +} + +/** + * Kills the oldest connection that is in TIME_WAIT state. + * Called from tcp_alloc() if no more connections are available. + */ +static void +tcp_kill_timewait(void) +{ + struct tcp_pcb *pcb, *inactive; + u32_t inactivity; + + inactivity = 0; + inactive = NULL; + /* Go through the list of TIME_WAIT pcbs and get the oldest pcb. */ + for (pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) { + if ((u32_t)(tcp_ticks - pcb->tmr) >= inactivity) { + inactivity = tcp_ticks - pcb->tmr; + inactive = pcb; + } + } + if (inactive != NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_kill_timewait: killing oldest TIME-WAIT PCB %p (%"S32_F")\n", + (void *)inactive, inactivity)); + tcp_abort(inactive); + } +} + +/* Called when allocating a pcb fails. + * In this case, we want to handle all pcbs that want to close first: if we can + * now send the FIN (which failed before), the pcb might be in a state that is + * OK for us to now free it. + */ +static void +tcp_handle_closepend(void) +{ + struct tcp_pcb *pcb = tcp_active_pcbs; + + while (pcb != NULL) { + struct tcp_pcb *next = pcb->next; + /* send pending FIN */ + if (pcb->flags & TF_CLOSEPEND) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_handle_closepend: pending FIN\n")); + tcp_clear_flags(pcb, TF_CLOSEPEND); + tcp_close_shutdown_fin(pcb); + } + pcb = next; + } +} + +/** + * Allocate a new tcp_pcb structure. + * + * @param prio priority for the new pcb + * @return a new tcp_pcb that initially is in state CLOSED + */ +struct tcp_pcb * +tcp_alloc(u8_t prio) +{ + struct tcp_pcb *pcb; + + LWIP_ASSERT_CORE_LOCKED(); + + pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); + if (pcb == NULL) { + /* Try to send FIN for all pcbs stuck in TF_CLOSEPEND first */ + tcp_handle_closepend(); + + /* Try killing oldest connection in TIME-WAIT. */ + LWIP_DEBUGF(TCP_DEBUG, ("tcp_alloc: killing off oldest TIME-WAIT connection\n")); + tcp_kill_timewait(); + /* Try to allocate a tcp_pcb again. */ + pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); + if (pcb == NULL) { + /* Try killing oldest connection in LAST-ACK (these wouldn't go to TIME-WAIT). */ + LWIP_DEBUGF(TCP_DEBUG, ("tcp_alloc: killing off oldest LAST-ACK connection\n")); + tcp_kill_state(LAST_ACK); + /* Try to allocate a tcp_pcb again. */ + pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); + if (pcb == NULL) { + /* Try killing oldest connection in CLOSING. */ + LWIP_DEBUGF(TCP_DEBUG, ("tcp_alloc: killing off oldest CLOSING connection\n")); + tcp_kill_state(CLOSING); + /* Try to allocate a tcp_pcb again. */ + pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); + if (pcb == NULL) { + /* Try killing oldest active connection with lower priority than the new one. */ + LWIP_DEBUGF(TCP_DEBUG, ("tcp_alloc: killing oldest connection with prio lower than %d\n", prio)); + tcp_kill_prio(prio); + /* Try to allocate a tcp_pcb again. */ + pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); + if (pcb != NULL) { + /* adjust err stats: memp_malloc failed multiple times before */ + MEMP_STATS_DEC(err, MEMP_TCP_PCB); + } + } + if (pcb != NULL) { + /* adjust err stats: memp_malloc failed multiple times before */ + MEMP_STATS_DEC(err, MEMP_TCP_PCB); + } + } + if (pcb != NULL) { + /* adjust err stats: memp_malloc failed multiple times before */ + MEMP_STATS_DEC(err, MEMP_TCP_PCB); + } + } + if (pcb != NULL) { + /* adjust err stats: memp_malloc failed above */ + MEMP_STATS_DEC(err, MEMP_TCP_PCB); + } + } + if (pcb != NULL) { + /* zero out the whole pcb, so there is no need to initialize members to zero */ + memset(pcb, 0, sizeof(struct tcp_pcb)); + pcb->prio = prio; + pcb->snd_buf = TCP_SND_BUF; + /* Start with a window that does not need scaling. When window scaling is + enabled and used, the window is enlarged when both sides agree on scaling. */ + pcb->rcv_wnd = pcb->rcv_ann_wnd = TCPWND_MIN16(TCP_WND); + pcb->ttl = TCP_TTL; + /* As initial send MSS, we use TCP_MSS but limit it to 536. + The send MSS is updated when an MSS option is received. */ + pcb->mss = INITIAL_MSS; + pcb->rto = 3000 / TCP_SLOW_INTERVAL; + pcb->sv = 3000 / TCP_SLOW_INTERVAL; + pcb->rtime = -1; + pcb->cwnd = 1; + pcb->tmr = tcp_ticks; + pcb->last_timer = tcp_timer_ctr; + + /* RFC 5681 recommends setting ssthresh arbitrarily high and gives an example + of using the largest advertised receive window. We've seen complications with + receiving TCPs that use window scaling and/or window auto-tuning where the + initial advertised window is very small and then grows rapidly once the + connection is established. To avoid these complications, we set ssthresh to the + largest effective cwnd (amount of in-flight data) that the sender can have. */ + pcb->ssthresh = TCP_SND_BUF; + +#if LWIP_CALLBACK_API + pcb->recv = tcp_recv_null; +#endif /* LWIP_CALLBACK_API */ + + /* Init KEEPALIVE timer */ + pcb->keep_idle = TCP_KEEPIDLE_DEFAULT; + +#if LWIP_TCP_KEEPALIVE + pcb->keep_intvl = TCP_KEEPINTVL_DEFAULT; + pcb->keep_cnt = TCP_KEEPCNT_DEFAULT; +#endif /* LWIP_TCP_KEEPALIVE */ +#if LWIP_TCP_USER_TIMEOUT + pcb->user_timeout = TCP_USER_TIMEOUT_DEFAULT; +#endif /* LWIP_TCP_USER_TIMEOUT */ + } + return pcb; +} + +/** + * @ingroup tcp_raw + * Creates a new TCP protocol control block but doesn't place it on + * any of the TCP PCB lists. + * The pcb is not put on any list until binding using tcp_bind(). + * If memory is not available for creating the new pcb, NULL is returned. + * @see MEMP_NUM_TCP_PCB_LISTEN and MEMP_NUM_TCP_PCB + * + * @internal: Maybe there should be a idle TCP PCB list where these + * PCBs are put on. Port reservation using tcp_bind() is implemented but + * allocated pcbs that are not bound can't be killed automatically if wanting + * to allocate a pcb with higher prio (@see tcp_kill_prio()) + * + * @return a new tcp_pcb that initially is in state CLOSED + */ +struct tcp_pcb * +tcp_new(void) +{ + return tcp_alloc(TCP_PRIO_NORMAL); +} + +/** + * @ingroup tcp_raw + * Creates a new TCP protocol control block but doesn't + * place it on any of the TCP PCB lists. + * The pcb is not put on any list until binding using tcp_bind(). + * @see MEMP_NUM_TCP_PCB_LISTEN and MEMP_NUM_TCP_PCB + * + * @param type IP address type, see @ref lwip_ip_addr_type definitions. + * If you want to listen to IPv4 and IPv6 (dual-stack) connections, + * supply @ref IPADDR_TYPE_ANY as argument and bind to @ref IP_ANY_TYPE. + * @return a new tcp_pcb that initially is in state CLOSED + */ +struct tcp_pcb * +tcp_new_ip_type(u8_t type) +{ + struct tcp_pcb *pcb; + pcb = tcp_alloc(TCP_PRIO_NORMAL); +#if LWIP_IPV4 && LWIP_IPV6 + if (pcb != NULL) { + IP_SET_TYPE_VAL(pcb->local_ip, type); + IP_SET_TYPE_VAL(pcb->remote_ip, type); + } +#else + LWIP_UNUSED_ARG(type); +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + return pcb; +} + +/** + * @ingroup tcp_raw + * Specifies the program specific state that should be passed to all + * other callback functions. The "pcb" argument is the current TCP + * connection control block, and the "arg" argument is the argument + * that will be passed to the callbacks. + * + * @param pcb tcp_pcb to set the callback argument + * @param arg void pointer argument to pass to callback functions + */ +void +tcp_arg(struct tcp_pcb *pcb, void *arg) +{ + LWIP_ASSERT_CORE_LOCKED(); + /* This function is allowed to be called for both listen pcbs and + connection pcbs. */ + if (pcb != NULL) { + pcb->callback_arg = arg; + } +} +#if LWIP_CALLBACK_API + +/** + * @ingroup tcp_raw + * Sets the callback function that will be called when new data + * arrives. The callback function will be passed a NULL pbuf to + * indicate that the remote host has closed the connection. If the + * callback function returns ERR_OK or ERR_ABRT it must have + * freed the pbuf, otherwise it must not have freed it. + * + * @param pcb tcp_pcb to set the recv callback + * @param recv callback function to call for this pcb when data is received + */ +void +tcp_recv(struct tcp_pcb *pcb, tcp_recv_fn recv) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (pcb != NULL) { + LWIP_ASSERT("invalid socket state for recv callback", pcb->state != LISTEN); + pcb->recv = recv; + } +} + +/** + * @ingroup tcp_raw + * Specifies the callback function that should be called when data has + * successfully been received (i.e., acknowledged) by the remote + * host. The len argument passed to the callback function gives the + * amount bytes that was acknowledged by the last acknowledgment. + * + * @param pcb tcp_pcb to set the sent callback + * @param sent callback function to call for this pcb when data is successfully sent + */ +void +tcp_sent(struct tcp_pcb *pcb, tcp_sent_fn sent) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (pcb != NULL) { + LWIP_ASSERT("invalid socket state for sent callback", pcb->state != LISTEN); + pcb->sent = sent; + } +} + +/** + * @ingroup tcp_raw + * Used to specify the function that should be called when a fatal error + * has occurred on the connection. + * + * If a connection is aborted because of an error, the application is + * alerted of this event by the err callback. Errors that might abort a + * connection are when there is a shortage of memory. The callback + * function to be called is set using the tcp_err() function. + * + * @note The corresponding pcb is already freed when this callback is called! + * + * @param pcb tcp_pcb to set the err callback + * @param err callback function to call for this pcb when a fatal error + * has occurred on the connection + */ +void +tcp_err(struct tcp_pcb *pcb, tcp_err_fn err) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (pcb != NULL) { + LWIP_ASSERT("invalid socket state for err callback", pcb->state != LISTEN); + pcb->errf = err; + } +} + +/** + * @ingroup tcp_raw + * Used for specifying the function that should be called when a + * LISTENing connection has been connected to another host. + * @see MEMP_NUM_TCP_PCB_LISTEN and MEMP_NUM_TCP_PCB + * + * @param pcb tcp_pcb to set the accept callback + * @param accept callback function to call for this pcb when LISTENing + * connection has been connected to another host + */ +void +tcp_accept(struct tcp_pcb *pcb, tcp_accept_fn accept) +{ + LWIP_ASSERT_CORE_LOCKED(); + if ((pcb != NULL) && (pcb->state == LISTEN)) { + struct tcp_pcb_listen *lpcb = (struct tcp_pcb_listen *)pcb; + lpcb->accept = accept; + } +} +#endif /* LWIP_CALLBACK_API */ + + +/** + * @ingroup tcp_raw + * Specifies the polling interval and the callback function that should + * be called to poll the application. The interval is specified in + * number of TCP coarse grained timer shots, which typically occurs + * twice a second. An interval of 10 means that the application would + * be polled every 5 seconds. + * + * When a connection is idle (i.e., no data is either transmitted or + * received), lwIP will repeatedly poll the application by calling a + * specified callback function. This can be used either as a watchdog + * timer for killing connections that have stayed idle for too long, or + * as a method of waiting for memory to become available. For instance, + * if a call to tcp_write() has failed because memory wasn't available, + * the application may use the polling functionality to call tcp_write() + * again when the connection has been idle for a while. + */ +void +tcp_poll(struct tcp_pcb *pcb, tcp_poll_fn poll, u8_t interval) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("tcp_poll: invalid pcb", pcb != NULL, return); + LWIP_ASSERT("invalid socket state for poll", pcb->state != LISTEN); + +#if LWIP_CALLBACK_API + pcb->poll = poll; +#else /* LWIP_CALLBACK_API */ + LWIP_UNUSED_ARG(poll); +#endif /* LWIP_CALLBACK_API */ + pcb->pollinterval = interval; +} + +/** + * Purges a TCP PCB. Removes any buffered data and frees the buffer memory + * (pcb->ooseq, pcb->unsent and pcb->unacked are freed). + * + * @param pcb tcp_pcb to purge. The pcb itself is not deallocated! + */ +void +tcp_pcb_purge(struct tcp_pcb *pcb) +{ + LWIP_ERROR("tcp_pcb_purge: invalid pcb", pcb != NULL, return); + + if (pcb->state != CLOSED && + pcb->state != TIME_WAIT && + pcb->state != LISTEN) { + + LWIP_DEBUGF(TCP_DEBUG, ("tcp_pcb_purge\n")); + + tcp_backlog_accepted(pcb); + + if (pcb->refused_data != NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_pcb_purge: data left on ->refused_data\n")); + pbuf_free(pcb->refused_data); + pcb->refused_data = NULL; + } + if (pcb->unsent != NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_pcb_purge: not all data sent\n")); + } + if (pcb->unacked != NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_pcb_purge: data left on ->unacked\n")); + } +#if TCP_QUEUE_OOSEQ + if (pcb->ooseq != NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_pcb_purge: data left on ->ooseq\n")); + tcp_free_ooseq(pcb); + } +#endif /* TCP_QUEUE_OOSEQ */ + + /* Stop the retransmission timer as it will expect data on unacked + queue if it fires */ + pcb->rtime = -1; + + tcp_segs_free(pcb->unsent); + tcp_segs_free(pcb->unacked); + pcb->unacked = pcb->unsent = NULL; +#if TCP_OVERSIZE + pcb->unsent_oversize = 0; +#endif /* TCP_OVERSIZE */ + } +} + +/** + * Purges the PCB and removes it from a PCB list. Any delayed ACKs are sent first. + * + * @param pcblist PCB list to purge. + * @param pcb tcp_pcb to purge. The pcb itself is NOT deallocated! + */ +void +tcp_pcb_remove(struct tcp_pcb **pcblist, struct tcp_pcb *pcb) +{ + LWIP_ASSERT("tcp_pcb_remove: invalid pcb", pcb != NULL); + LWIP_ASSERT("tcp_pcb_remove: invalid pcblist", pcblist != NULL); + + TCP_RMV(pcblist, pcb); + + tcp_pcb_purge(pcb); + + /* if there is an outstanding delayed ACKs, send it */ + if ((pcb->state != TIME_WAIT) && + (pcb->state != LISTEN) && + (pcb->flags & TF_ACK_DELAY)) { + tcp_ack_now(pcb); + tcp_output(pcb); + } + + if (pcb->state != LISTEN) { + LWIP_ASSERT("unsent segments leaking", pcb->unsent == NULL); + LWIP_ASSERT("unacked segments leaking", pcb->unacked == NULL); +#if TCP_QUEUE_OOSEQ + LWIP_ASSERT("ooseq segments leaking", pcb->ooseq == NULL); +#endif /* TCP_QUEUE_OOSEQ */ + } + + pcb->state = CLOSED; + /* reset the local port to prevent the pcb from being 'bound' */ + pcb->local_port = 0; + + LWIP_ASSERT("tcp_pcb_remove: tcp_pcbs_sane()", tcp_pcbs_sane()); +} + +/** + * Calculates a new initial sequence number for new connections. + * + * @return u32_t pseudo random sequence number + */ +u32_t +tcp_next_iss(struct tcp_pcb *pcb) +{ +#ifdef LWIP_HOOK_TCP_ISN + LWIP_ASSERT("tcp_next_iss: invalid pcb", pcb != NULL); + return LWIP_HOOK_TCP_ISN(&pcb->local_ip, pcb->local_port, &pcb->remote_ip, pcb->remote_port); +#else /* LWIP_HOOK_TCP_ISN */ + static u32_t iss = 6510; + + LWIP_ASSERT("tcp_next_iss: invalid pcb", pcb != NULL); + LWIP_UNUSED_ARG(pcb); + + iss += tcp_ticks; /* XXX */ + return iss; +#endif /* LWIP_HOOK_TCP_ISN */ +} + +#if TCP_CALCULATE_EFF_SEND_MSS +/** + * Calculates the effective send mss that can be used for a specific IP address + * by calculating the minimum of TCP_MSS and the mtu (if set) of the target + * netif (if not NULL). + */ +u16_t +tcp_eff_send_mss_netif(u16_t sendmss, struct netif *outif, const ip_addr_t *dest) +{ + u16_t mss_s; + u16_t mtu; + + LWIP_UNUSED_ARG(dest); /* in case IPv6 is disabled */ + + LWIP_ASSERT("tcp_eff_send_mss_netif: invalid dst_ip", dest != NULL); + +#if LWIP_IPV6 +#if LWIP_IPV4 + if (IP_IS_V6(dest)) +#endif /* LWIP_IPV4 */ + { + /* First look in destination cache, to see if there is a Path MTU. */ + mtu = nd6_get_destination_mtu(ip_2_ip6(dest), outif); + } +#if LWIP_IPV4 + else +#endif /* LWIP_IPV4 */ +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 + { + if (outif == NULL) { + return sendmss; + } + mtu = outif->mtu; + } +#endif /* LWIP_IPV4 */ + + if (mtu != 0) { + u16_t offset; +#if LWIP_IPV6 +#if LWIP_IPV4 + if (IP_IS_V6(dest)) +#endif /* LWIP_IPV4 */ + { + offset = IP6_HLEN + TCP_HLEN; + } +#if LWIP_IPV4 + else +#endif /* LWIP_IPV4 */ +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 + { + offset = IP_HLEN + TCP_HLEN; + } +#endif /* LWIP_IPV4 */ + mss_s = (mtu > offset) ? (u16_t)(mtu - offset) : 0; + /* RFC 1122, chap 4.2.2.6: + * Eff.snd.MSS = min(SendMSS+20, MMS_S) - TCPhdrsize - IPoptionsize + * We correct for TCP options in tcp_write(), and don't support IP options. + */ + sendmss = LWIP_MIN(sendmss, mss_s); + } + return sendmss; +} +#endif /* TCP_CALCULATE_EFF_SEND_MSS */ + +/** Helper function for tcp_netif_ip_addr_changed() that iterates a pcb list */ +static void +tcp_netif_ip_addr_changed_pcblist(const ip_addr_t *old_addr, struct tcp_pcb *pcb_list) +{ + struct tcp_pcb *pcb; + pcb = pcb_list; + + LWIP_ASSERT("tcp_netif_ip_addr_changed_pcblist: invalid old_addr", old_addr != NULL); + + while (pcb != NULL) { + /* PCB bound to current local interface address? */ + if (ip_addr_eq(&pcb->local_ip, old_addr) +#if LWIP_AUTOIP + /* connections to link-local addresses must persist (RFC3927 ch. 1.9) */ + && (!IP_IS_V4_VAL(pcb->local_ip) || !ip4_addr_islinklocal(ip_2_ip4(&pcb->local_ip))) +#endif /* LWIP_AUTOIP */ + ) { + /* this connection must be aborted */ + struct tcp_pcb *next = pcb->next; + LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_STATE, ("netif_set_ipaddr: aborting TCP pcb %p\n", (void *)pcb)); + tcp_abort(pcb); + pcb = next; + } else { + pcb = pcb->next; + } + } +} + +/** This function is called from netif.c when address is changed or netif is removed + * + * @param old_addr IP address of the netif before change + * @param new_addr IP address of the netif after change or NULL if netif has been removed + */ +void +tcp_netif_ip_addr_changed(const ip_addr_t *old_addr, const ip_addr_t *new_addr) +{ + struct tcp_pcb_listen *lpcb; + + if (!ip_addr_isany(old_addr)) { + tcp_netif_ip_addr_changed_pcblist(old_addr, tcp_active_pcbs); + tcp_netif_ip_addr_changed_pcblist(old_addr, tcp_bound_pcbs); + + if (!ip_addr_isany(new_addr)) { + /* PCB bound to current local interface address? */ + for (lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) { + /* PCB bound to current local interface address? */ + if (ip_addr_eq(&lpcb->local_ip, old_addr)) { + /* The PCB is listening to the old ipaddr and + * is set to listen to the new one instead */ + ip_addr_copy(lpcb->local_ip, *new_addr); + } + } + } + } +} + +const char * +tcp_debug_state_str(enum tcp_state s) +{ + return tcp_state_str[s]; +} + +err_t +tcp_tcp_get_tcp_addrinfo(struct tcp_pcb *pcb, int local, ip_addr_t *addr, u16_t *port) +{ + if (pcb) { + if (local) { + if (addr) { + *addr = pcb->local_ip; + } + if (port) { + *port = pcb->local_port; + } + } else { + if (addr) { + *addr = pcb->remote_ip; + } + if (port) { + *port = pcb->remote_port; + } + } + return ERR_OK; + } + return ERR_VAL; +} + +#if TCP_QUEUE_OOSEQ +/* Free all ooseq pbufs (and possibly reset SACK state) */ +void +tcp_free_ooseq(struct tcp_pcb *pcb) +{ + if (pcb->ooseq) { + tcp_segs_free(pcb->ooseq); + pcb->ooseq = NULL; +#if LWIP_TCP_SACK_OUT + memset(pcb->rcv_sacks, 0, sizeof(pcb->rcv_sacks)); +#endif /* LWIP_TCP_SACK_OUT */ + } +} +#endif /* TCP_QUEUE_OOSEQ */ + +#if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG +/** + * Print a tcp header for debugging purposes. + * + * @param tcphdr pointer to a struct tcp_hdr + */ +void +tcp_debug_print(struct tcp_hdr *tcphdr) +{ + LWIP_DEBUGF(TCP_DEBUG, ("TCP header:\n")); + LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(TCP_DEBUG, ("| %5"U16_F" | %5"U16_F" | (src port, dest port)\n", + lwip_ntohs(tcphdr->src), lwip_ntohs(tcphdr->dest))); + LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(TCP_DEBUG, ("| %010"U32_F" | (seq no)\n", + lwip_ntohl(tcphdr->seqno))); + LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(TCP_DEBUG, ("| %010"U32_F" | (ack no)\n", + lwip_ntohl(tcphdr->ackno))); + LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(TCP_DEBUG, ("| %2"U16_F" | |%"U16_F"%"U16_F"%"U16_F"%"U16_F"%"U16_F"%"U16_F"| %5"U16_F" | (hdrlen, flags (", + TCPH_HDRLEN(tcphdr), + (u16_t)(TCPH_FLAGS(tcphdr) >> 5 & 1), + (u16_t)(TCPH_FLAGS(tcphdr) >> 4 & 1), + (u16_t)(TCPH_FLAGS(tcphdr) >> 3 & 1), + (u16_t)(TCPH_FLAGS(tcphdr) >> 2 & 1), + (u16_t)(TCPH_FLAGS(tcphdr) >> 1 & 1), + (u16_t)(TCPH_FLAGS(tcphdr) & 1), + lwip_ntohs(tcphdr->wnd))); + tcp_debug_print_flags(TCPH_FLAGS(tcphdr)); + LWIP_DEBUGF(TCP_DEBUG, ("), win)\n")); + LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(TCP_DEBUG, ("| 0x%04"X16_F" | %5"U16_F" | (chksum, urgp)\n", + lwip_ntohs(tcphdr->chksum), lwip_ntohs(tcphdr->urgp))); + LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); +} + +/** + * Print a tcp state for debugging purposes. + * + * @param s enum tcp_state to print + */ +void +tcp_debug_print_state(enum tcp_state s) +{ + LWIP_DEBUGF(TCP_DEBUG, ("State: %s\n", tcp_state_str[s])); +} + +/** + * Print tcp flags for debugging purposes. + * + * @param flags tcp flags, all active flags are printed + */ +void +tcp_debug_print_flags(u8_t flags) +{ + if (flags & TCP_FIN) { + LWIP_DEBUGF(TCP_DEBUG, ("FIN ")); + } + if (flags & TCP_SYN) { + LWIP_DEBUGF(TCP_DEBUG, ("SYN ")); + } + if (flags & TCP_RST) { + LWIP_DEBUGF(TCP_DEBUG, ("RST ")); + } + if (flags & TCP_PSH) { + LWIP_DEBUGF(TCP_DEBUG, ("PSH ")); + } + if (flags & TCP_ACK) { + LWIP_DEBUGF(TCP_DEBUG, ("ACK ")); + } + if (flags & TCP_URG) { + LWIP_DEBUGF(TCP_DEBUG, ("URG ")); + } + if (flags & TCP_ECE) { + LWIP_DEBUGF(TCP_DEBUG, ("ECE ")); + } + if (flags & TCP_CWR) { + LWIP_DEBUGF(TCP_DEBUG, ("CWR ")); + } + LWIP_DEBUGF(TCP_DEBUG, ("\n")); +} + +/** + * Print all tcp_pcbs in every list for debugging purposes. + */ +void +tcp_debug_print_pcbs(void) +{ + struct tcp_pcb *pcb; + struct tcp_pcb_listen *pcbl; + + LWIP_DEBUGF(TCP_DEBUG, ("Active PCB states:\n")); + for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { + LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F", foreign port %"U16_F" snd_nxt %"U32_F" rcv_nxt %"U32_F" ", + pcb->local_port, pcb->remote_port, + pcb->snd_nxt, pcb->rcv_nxt)); + tcp_debug_print_state(pcb->state); + } + + LWIP_DEBUGF(TCP_DEBUG, ("Listen PCB states:\n")); + for (pcbl = tcp_listen_pcbs.listen_pcbs; pcbl != NULL; pcbl = pcbl->next) { + LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F" ", pcbl->local_port)); + tcp_debug_print_state(pcbl->state); + } + + LWIP_DEBUGF(TCP_DEBUG, ("TIME-WAIT PCB states:\n")); + for (pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) { + LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F", foreign port %"U16_F" snd_nxt %"U32_F" rcv_nxt %"U32_F" ", + pcb->local_port, pcb->remote_port, + pcb->snd_nxt, pcb->rcv_nxt)); + tcp_debug_print_state(pcb->state); + } +} + +/** + * Check state consistency of the tcp_pcb lists. + */ +s16_t +tcp_pcbs_sane(void) +{ + struct tcp_pcb *pcb; + for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { + LWIP_ASSERT("tcp_pcbs_sane: active pcb->state != CLOSED", pcb->state != CLOSED); + LWIP_ASSERT("tcp_pcbs_sane: active pcb->state != LISTEN", pcb->state != LISTEN); + LWIP_ASSERT("tcp_pcbs_sane: active pcb->state != TIME-WAIT", pcb->state != TIME_WAIT); + } + for (pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) { + LWIP_ASSERT("tcp_pcbs_sane: tw pcb->state == TIME-WAIT", pcb->state == TIME_WAIT); + } + return 1; +} +#endif /* TCP_DEBUG */ + +#if LWIP_TCP_PCB_NUM_EXT_ARGS +/** + * @defgroup tcp_raw_extargs ext arguments + * @ingroup tcp_raw + * Additional data storage per tcp pcb
+ * @see @ref tcp_raw + * + * When LWIP_TCP_PCB_NUM_EXT_ARGS is > 0, every tcp pcb (including listen pcb) + * includes a number of additional argument entries in an array. + * + * To support memory management, in addition to a 'void *', callbacks can be + * provided to manage transition from listening pcbs to connections and to + * deallocate memory when a pcb is deallocated (see struct @ref tcp_ext_arg_callbacks). + * + * After allocating this index, use @ref tcp_ext_arg_set and @ref tcp_ext_arg_get + * to store and load arguments from this index for a given pcb. + */ + +static u8_t tcp_ext_arg_id; + +/** + * @ingroup tcp_raw_extargs + * Allocate an index to store data in ext_args member of struct tcp_pcb. + * Returned value is an index in mentioned array. + * The index is *global* over all pcbs! + * + * When @ref LWIP_TCP_PCB_NUM_EXT_ARGS is > 0, every tcp pcb (including listen pcb) + * includes a number of additional argument entries in an array. + * + * To support memory management, in addition to a 'void *', callbacks can be + * provided to manage transition from listening pcbs to connections and to + * deallocate memory when a pcb is deallocated (see struct @ref tcp_ext_arg_callbacks). + * + * After allocating this index, use @ref tcp_ext_arg_set and @ref tcp_ext_arg_get + * to store and load arguments from this index for a given pcb. + * + * @return a unique index into struct tcp_pcb.ext_args + */ +u8_t +tcp_ext_arg_alloc_id(void) +{ + u8_t result = tcp_ext_arg_id; + tcp_ext_arg_id++; + + LWIP_ASSERT_CORE_LOCKED(); + +#if LWIP_TCP_PCB_NUM_EXT_ARGS >= 255 +#error LWIP_TCP_PCB_NUM_EXT_ARGS +#endif + LWIP_ASSERT("Increase LWIP_TCP_PCB_NUM_EXT_ARGS in lwipopts.h", result < LWIP_TCP_PCB_NUM_EXT_ARGS); + return result; +} + +/** + * @ingroup tcp_raw_extargs + * Set callbacks for a given index of ext_args on the specified pcb. + * + * @param pcb tcp_pcb for which to set the callback + * @param id ext_args index to set (allocated via @ref tcp_ext_arg_alloc_id) + * @param callbacks callback table (const since it is referenced, not copied!) + */ +void +tcp_ext_arg_set_callbacks(struct tcp_pcb *pcb, u8_t id, const struct tcp_ext_arg_callbacks * const callbacks) +{ + LWIP_ASSERT("pcb != NULL", pcb != NULL); + LWIP_ASSERT("id < LWIP_TCP_PCB_NUM_EXT_ARGS", id < LWIP_TCP_PCB_NUM_EXT_ARGS); + LWIP_ASSERT("callbacks != NULL", callbacks != NULL); + + LWIP_ASSERT_CORE_LOCKED(); + + pcb->ext_args[id].callbacks = callbacks; +} + +/** + * @ingroup tcp_raw_extargs + * Set data for a given index of ext_args on the specified pcb. + * + * @param pcb tcp_pcb for which to set the data + * @param id ext_args index to set (allocated via @ref tcp_ext_arg_alloc_id) + * @param arg data pointer to set + */ +void tcp_ext_arg_set(struct tcp_pcb *pcb, u8_t id, void *arg) +{ + LWIP_ASSERT("pcb != NULL", pcb != NULL); + LWIP_ASSERT("id < LWIP_TCP_PCB_NUM_EXT_ARGS", id < LWIP_TCP_PCB_NUM_EXT_ARGS); + + LWIP_ASSERT_CORE_LOCKED(); + + pcb->ext_args[id].data = arg; +} + +/** + * @ingroup tcp_raw_extargs + * Set data for a given index of ext_args on the specified pcb. + * + * @param pcb tcp_pcb for which to set the data + * @param id ext_args index to set (allocated via @ref tcp_ext_arg_alloc_id) + * @return data pointer at the given index + */ +void *tcp_ext_arg_get(const struct tcp_pcb *pcb, u8_t id) +{ + LWIP_ASSERT("pcb != NULL", pcb != NULL); + LWIP_ASSERT("id < LWIP_TCP_PCB_NUM_EXT_ARGS", id < LWIP_TCP_PCB_NUM_EXT_ARGS); + + LWIP_ASSERT_CORE_LOCKED(); + + return pcb->ext_args[id].data; +} + +/** This function calls the "destroy" callback for all ext_args once a pcb is + * freed. + */ +static void +tcp_ext_arg_invoke_callbacks_destroyed(struct tcp_pcb_ext_args *ext_args) +{ + int i; + LWIP_ASSERT("ext_args != NULL", ext_args != NULL); + + for (i = 0; i < LWIP_TCP_PCB_NUM_EXT_ARGS; i++) { + if (ext_args[i].callbacks != NULL) { + if (ext_args[i].callbacks->destroy != NULL) { + ext_args[i].callbacks->destroy((u8_t)i, ext_args[i].data); + } + } + } +} + +/** This function calls the "passive_open" callback for all ext_args if a connection + * is in the process of being accepted. This is called just after the SYN is + * received and before a SYN/ACK is sent, to allow to modify the very first + * segment sent even on passive open. Naturally, the "accepted" callback of the + * pcb has not been called yet! + */ +err_t +tcp_ext_arg_invoke_callbacks_passive_open(struct tcp_pcb_listen *lpcb, struct tcp_pcb *cpcb) +{ + int i; + LWIP_ASSERT("lpcb != NULL", lpcb != NULL); + LWIP_ASSERT("cpcb != NULL", cpcb != NULL); + + for (i = 0; i < LWIP_TCP_PCB_NUM_EXT_ARGS; i++) { + if (lpcb->ext_args[i].callbacks != NULL) { + if (lpcb->ext_args[i].callbacks->passive_open != NULL) { + err_t err = lpcb->ext_args[i].callbacks->passive_open((u8_t)i, lpcb, cpcb); + if (err != ERR_OK) { + return err; + } + } + } + } + return ERR_OK; +} +#endif /* LWIP_TCP_PCB_NUM_EXT_ARGS */ + +#endif /* LWIP_TCP */ diff --git a/middleware/lwip/src/core/tcp_in.c b/middleware/lwip/src/core/tcp_in.c new file mode 100644 index 0000000..404cbb4 --- /dev/null +++ b/middleware/lwip/src/core/tcp_in.c @@ -0,0 +1,2184 @@ +/** + * @file + * Transmission Control Protocol, incoming traffic + * + * The input processing functions of the TCP layer. + * + * These functions are generally called in the order (ip_input() ->) + * tcp_input() -> * tcp_process() -> tcp_receive() (-> application). + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/priv/tcp_priv.h" +#include "lwip/def.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/mem.h" +#include "lwip/memp.h" +#include "lwip/inet_chksum.h" +#include "lwip/stats.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#if LWIP_ND6_TCP_REACHABILITY_HINTS +#include "lwip/nd6.h" +#endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */ + +#include + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif + +/** Initial CWND calculation as defined RFC 2581 */ +#define LWIP_TCP_CALC_INITIAL_CWND(mss) ((tcpwnd_size_t)LWIP_MIN((4U * (mss)), LWIP_MAX((2U * (mss)), 4380U))) + +/* These variables are global to all functions involved in the input + processing of TCP segments. They are set by the tcp_input() + function. */ +static struct tcp_seg inseg; +static struct tcp_hdr *tcphdr; +static u16_t tcphdr_optlen; +static u16_t tcphdr_opt1len; +static u8_t *tcphdr_opt2; +static u16_t tcp_optidx; +static u32_t seqno, ackno; +static tcpwnd_size_t recv_acked; +static u16_t tcplen; +static u8_t flags; + +static u8_t recv_flags; +static struct pbuf *recv_data; + +struct tcp_pcb *tcp_input_pcb; + +/* Forward declarations. */ +static err_t tcp_process(struct tcp_pcb *pcb); +static void tcp_receive(struct tcp_pcb *pcb); +static void tcp_parseopt(struct tcp_pcb *pcb); + +static void tcp_listen_input(struct tcp_pcb_listen *pcb); +static void tcp_timewait_input(struct tcp_pcb *pcb); + +static int tcp_input_delayed_close(struct tcp_pcb *pcb); + +#if LWIP_TCP_SACK_OUT +static void tcp_add_sack(struct tcp_pcb *pcb, u32_t left, u32_t right); +static void tcp_remove_sacks_lt(struct tcp_pcb *pcb, u32_t seq); +#if defined(TCP_OOSEQ_BYTES_LIMIT) || defined(TCP_OOSEQ_PBUFS_LIMIT) +static void tcp_remove_sacks_gt(struct tcp_pcb *pcb, u32_t seq); +#endif /* TCP_OOSEQ_BYTES_LIMIT || TCP_OOSEQ_PBUFS_LIMIT */ +#endif /* LWIP_TCP_SACK_OUT */ + +/** + * The initial input processing of TCP. It verifies the TCP header, demultiplexes + * the segment between the PCBs and passes it on to tcp_process(), which implements + * the TCP finite state machine. This function is called by the IP layer (in + * ip_input()). + * + * @param p received TCP segment to process (p->payload pointing to the TCP header) + * @param inp network interface on which this segment was received + */ +void +tcp_input(struct pbuf *p, struct netif *inp) +{ + struct tcp_pcb *pcb, *prev; + struct tcp_pcb_listen *lpcb; +#if SO_REUSE + struct tcp_pcb *lpcb_prev = NULL; + struct tcp_pcb_listen *lpcb_any = NULL; +#endif /* SO_REUSE */ + u8_t hdrlen_bytes; + err_t err; + + LWIP_UNUSED_ARG(inp); + LWIP_ASSERT_CORE_LOCKED(); + LWIP_ASSERT("tcp_input: invalid pbuf", p != NULL); + + PERF_START; + + TCP_STATS_INC(tcp.recv); + MIB2_STATS_INC(mib2.tcpinsegs); + + tcphdr = (struct tcp_hdr *)p->payload; + +#if TCP_INPUT_DEBUG + tcp_debug_print(tcphdr); +#endif + + /* Check that TCP header fits in payload */ + if (p->len < TCP_HLEN) { + /* drop short packets */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: short packet (%"U16_F" bytes) discarded\n", p->tot_len)); + TCP_STATS_INC(tcp.lenerr); + goto dropped; + } + + /* Don't even process incoming broadcasts/multicasts. */ + if (ip_addr_isbroadcast(ip_current_dest_addr(), ip_current_netif()) || + ip_addr_ismulticast(ip_current_dest_addr())) { + TCP_STATS_INC(tcp.proterr); + goto dropped; + } + +#if CHECKSUM_CHECK_TCP + IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_CHECK_TCP) { + /* Verify TCP checksum. */ + u16_t chksum = ip_chksum_pseudo(p, IP_PROTO_TCP, p->tot_len, + ip_current_src_addr(), ip_current_dest_addr()); + if (chksum != 0) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: packet discarded due to failing checksum 0x%04"X16_F"\n", + chksum)); + tcp_debug_print(tcphdr); + TCP_STATS_INC(tcp.chkerr); + goto dropped; + } + } +#endif /* CHECKSUM_CHECK_TCP */ + + /* sanity-check header length */ + hdrlen_bytes = TCPH_HDRLEN_BYTES(tcphdr); + if ((hdrlen_bytes < TCP_HLEN) || (hdrlen_bytes > p->tot_len)) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: invalid header length (%"U16_F")\n", (u16_t)hdrlen_bytes)); + TCP_STATS_INC(tcp.lenerr); + goto dropped; + } + + /* Move the payload pointer in the pbuf so that it points to the + TCP data instead of the TCP header. */ + tcphdr_optlen = (u16_t)(hdrlen_bytes - TCP_HLEN); + tcphdr_opt2 = NULL; + if (p->len >= hdrlen_bytes) { + /* all options are in the first pbuf */ + tcphdr_opt1len = tcphdr_optlen; + pbuf_remove_header(p, hdrlen_bytes); /* cannot fail */ + } else { + u16_t opt2len; + /* TCP header fits into first pbuf, options don't - data is in the next pbuf */ + /* there must be a next pbuf, due to hdrlen_bytes sanity check above */ + LWIP_ASSERT("p->next != NULL", p->next != NULL); + + /* advance over the TCP header (cannot fail) */ + pbuf_remove_header(p, TCP_HLEN); + + /* determine how long the first and second parts of the options are */ + tcphdr_opt1len = p->len; + opt2len = (u16_t)(tcphdr_optlen - tcphdr_opt1len); + + /* options continue in the next pbuf: set p to zero length and hide the + options in the next pbuf (adjusting p->tot_len) */ + pbuf_remove_header(p, tcphdr_opt1len); + + /* check that the options fit in the second pbuf */ + if (opt2len > p->next->len) { + /* drop short packets */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: options overflow second pbuf (%"U16_F" bytes)\n", p->next->len)); + TCP_STATS_INC(tcp.lenerr); + goto dropped; + } + + /* remember the pointer to the second part of the options */ + tcphdr_opt2 = (u8_t *)p->next->payload; + + /* advance p->next to point after the options, and manually + adjust p->tot_len to keep it consistent with the changed p->next */ + pbuf_remove_header(p->next, opt2len); + p->tot_len = (u16_t)(p->tot_len - opt2len); + + LWIP_ASSERT("p->len == 0", p->len == 0); + LWIP_ASSERT("p->tot_len == p->next->tot_len", p->tot_len == p->next->tot_len); + } + + /* Convert fields in TCP header to host byte order. */ + tcphdr->src = lwip_ntohs(tcphdr->src); + tcphdr->dest = lwip_ntohs(tcphdr->dest); + seqno = tcphdr->seqno = lwip_ntohl(tcphdr->seqno); + ackno = tcphdr->ackno = lwip_ntohl(tcphdr->ackno); + tcphdr->wnd = lwip_ntohs(tcphdr->wnd); + + flags = TCPH_FLAGS(tcphdr); + tcplen = p->tot_len; + if (flags & (TCP_FIN | TCP_SYN)) { + tcplen++; + if (tcplen < p->tot_len) { + /* u16_t overflow, cannot handle this */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: length u16_t overflow, cannot handle this\n")); + TCP_STATS_INC(tcp.lenerr); + goto dropped; + } + } + + /* Demultiplex an incoming segment. First, we check if it is destined + for an active connection. */ + prev = NULL; + + for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { + LWIP_ASSERT("tcp_input: active pcb->state != CLOSED", pcb->state != CLOSED); + LWIP_ASSERT("tcp_input: active pcb->state != TIME-WAIT", pcb->state != TIME_WAIT); + LWIP_ASSERT("tcp_input: active pcb->state != LISTEN", pcb->state != LISTEN); + + /* check if PCB is bound to specific netif */ + if ((pcb->netif_idx != NETIF_NO_INDEX) && + (pcb->netif_idx != netif_get_index(ip_data.current_input_netif))) { + prev = pcb; + continue; + } + + if (pcb->remote_port == tcphdr->src && + pcb->local_port == tcphdr->dest && + ip_addr_eq(&pcb->remote_ip, ip_current_src_addr()) && + ip_addr_eq(&pcb->local_ip, ip_current_dest_addr())) { + /* Move this PCB to the front of the list so that subsequent + lookups will be faster (we exploit locality in TCP segment + arrivals). */ + LWIP_ASSERT("tcp_input: pcb->next != pcb (before cache)", pcb->next != pcb); + if (prev != NULL) { + prev->next = pcb->next; + pcb->next = tcp_active_pcbs; + tcp_active_pcbs = pcb; + } else { + TCP_STATS_INC(tcp.cachehit); + } + LWIP_ASSERT("tcp_input: pcb->next != pcb (after cache)", pcb->next != pcb); + break; + } + prev = pcb; + } + + if (pcb == NULL) { + /* If it did not go to an active connection, we check the connections + in the TIME-WAIT state. */ + for (pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) { + LWIP_ASSERT("tcp_input: TIME-WAIT pcb->state == TIME-WAIT", pcb->state == TIME_WAIT); + + /* check if PCB is bound to specific netif */ + if ((pcb->netif_idx != NETIF_NO_INDEX) && + (pcb->netif_idx != netif_get_index(ip_data.current_input_netif))) { + continue; + } + + if (pcb->remote_port == tcphdr->src && + pcb->local_port == tcphdr->dest && + ip_addr_eq(&pcb->remote_ip, ip_current_src_addr()) && + ip_addr_eq(&pcb->local_ip, ip_current_dest_addr())) { + /* We don't really care enough to move this PCB to the front + of the list since we are not very likely to receive that + many segments for connections in TIME-WAIT. */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: packed for TIME_WAITing connection.\n")); +#ifdef LWIP_HOOK_TCP_INPACKET_PCB + if (LWIP_HOOK_TCP_INPACKET_PCB(pcb, tcphdr, tcphdr_optlen, tcphdr_opt1len, + tcphdr_opt2, p) == ERR_OK) +#endif + { + tcp_timewait_input(pcb); + } + pbuf_free(p); + return; + } + } + + /* Finally, if we still did not get a match, we check all PCBs that + are LISTENing for incoming connections. */ + prev = NULL; + for (lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) { + /* check if PCB is bound to specific netif */ + if ((lpcb->netif_idx != NETIF_NO_INDEX) && + (lpcb->netif_idx != netif_get_index(ip_data.current_input_netif))) { + prev = (struct tcp_pcb *)lpcb; + continue; + } + + if (lpcb->local_port == tcphdr->dest) { + if (IP_IS_ANY_TYPE_VAL(lpcb->local_ip)) { + /* found an ANY TYPE (IPv4/IPv6) match */ +#if SO_REUSE + lpcb_any = lpcb; + lpcb_prev = prev; +#else /* SO_REUSE */ + break; +#endif /* SO_REUSE */ + } else if (IP_ADDR_PCB_VERSION_MATCH_EXACT(lpcb, ip_current_dest_addr())) { + if (ip_addr_eq(&lpcb->local_ip, ip_current_dest_addr())) { + /* found an exact match */ + break; + } else if (ip_addr_isany(&lpcb->local_ip)) { + /* found an ANY-match */ +#if SO_REUSE + lpcb_any = lpcb; + lpcb_prev = prev; +#else /* SO_REUSE */ + break; +#endif /* SO_REUSE */ + } + } + } + prev = (struct tcp_pcb *)lpcb; + } +#if SO_REUSE + /* first try specific local IP */ + if (lpcb == NULL) { + /* only pass to ANY if no specific local IP has been found */ + lpcb = lpcb_any; + prev = lpcb_prev; + } +#endif /* SO_REUSE */ + if (lpcb != NULL) { + /* Move this PCB to the front of the list so that subsequent + lookups will be faster (we exploit locality in TCP segment + arrivals). */ + if (prev != NULL) { + ((struct tcp_pcb_listen *)prev)->next = lpcb->next; + /* our successor is the remainder of the listening list */ + lpcb->next = tcp_listen_pcbs.listen_pcbs; + /* put this listening pcb at the head of the listening list */ + tcp_listen_pcbs.listen_pcbs = lpcb; + } else { + TCP_STATS_INC(tcp.cachehit); + } + + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: packed for LISTENing connection.\n")); +#ifdef LWIP_HOOK_TCP_INPACKET_PCB + if (LWIP_HOOK_TCP_INPACKET_PCB((struct tcp_pcb *)lpcb, tcphdr, tcphdr_optlen, + tcphdr_opt1len, tcphdr_opt2, p) == ERR_OK) +#endif + { + tcp_listen_input(lpcb); + } + pbuf_free(p); + return; + } + } + +#if TCP_INPUT_DEBUG + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("+-+-+-+-+-+-+-+-+-+-+-+-+-+- tcp_input: flags ")); + tcp_debug_print_flags(TCPH_FLAGS(tcphdr)); + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("-+-+-+-+-+-+-+-+-+-+-+-+-+-+\n")); +#endif /* TCP_INPUT_DEBUG */ + + +#ifdef LWIP_HOOK_TCP_INPACKET_PCB + if ((pcb != NULL) && LWIP_HOOK_TCP_INPACKET_PCB(pcb, tcphdr, tcphdr_optlen, + tcphdr_opt1len, tcphdr_opt2, p) != ERR_OK) { + pbuf_free(p); + return; + } +#endif + if (pcb != NULL) { + /* The incoming segment belongs to a connection. */ +#if TCP_INPUT_DEBUG + tcp_debug_print_state(pcb->state); +#endif /* TCP_INPUT_DEBUG */ + + /* Set up a tcp_seg structure. */ + inseg.next = NULL; + inseg.len = p->tot_len; + inseg.p = p; + inseg.tcphdr = tcphdr; + + recv_data = NULL; + recv_flags = 0; + recv_acked = 0; + + if (flags & TCP_PSH) { + p->flags |= PBUF_FLAG_PUSH; + } + + /* If there is data which was previously "refused" by upper layer */ + if (pcb->refused_data != NULL) { + if ((tcp_process_refused_data(pcb) == ERR_ABRT) || + ((pcb->refused_data != NULL) && (tcplen > 0))) { + /* pcb has been aborted or refused data is still refused and the new + segment contains data */ + if (pcb->rcv_ann_wnd == 0) { + /* this is a zero-window probe, we respond to it with current RCV.NXT + and drop the data segment */ + tcp_send_empty_ack(pcb); + } + TCP_STATS_INC(tcp.drop); + MIB2_STATS_INC(mib2.tcpinerrs); + goto aborted; + } + } + tcp_input_pcb = pcb; + err = tcp_process(pcb); + /* A return value of ERR_ABRT means that tcp_abort() was called + and that the pcb has been freed. If so, we don't do anything. */ + if (err != ERR_ABRT) { + if (recv_flags & TF_RESET) { + /* TF_RESET means that the connection was reset by the other + end. We then call the error callback to inform the + application that the connection is dead before we + deallocate the PCB. */ + TCP_EVENT_ERR(pcb->state, pcb->errf, pcb->callback_arg, ERR_RST); + tcp_pcb_remove(&tcp_active_pcbs, pcb); + tcp_free(pcb); + } else { + err = ERR_OK; + /* If the application has registered a "sent" function to be + called when new send buffer space is available, we call it + now. */ + if (recv_acked > 0) { + u16_t acked16; +#if LWIP_WND_SCALE + /* recv_acked is u32_t but the sent callback only takes a u16_t, + so we might have to call it multiple times. */ + u32_t acked = recv_acked; + while (acked > 0) { + acked16 = (u16_t)LWIP_MIN(acked, 0xffffu); + acked -= acked16; +#else + { + acked16 = recv_acked; +#endif + TCP_EVENT_SENT(pcb, (u16_t)acked16, err); + if (err == ERR_ABRT) { + goto aborted; + } + } + recv_acked = 0; + } + if (tcp_input_delayed_close(pcb)) { + goto aborted; + } +#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE + while (recv_data != NULL) { + struct pbuf *rest = NULL; + pbuf_split_64k(recv_data, &rest); +#else /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + if (recv_data != NULL) { +#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + + LWIP_ASSERT("pcb->refused_data == NULL", pcb->refused_data == NULL); + if (pcb->flags & TF_RXCLOSED) { + /* received data although already closed -> abort (send RST) to + notify the remote host that not all data has been processed */ + pbuf_free(recv_data); +#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE + if (rest != NULL) { + pbuf_free(rest); + } +#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + tcp_abort(pcb); + goto aborted; + } + + /* Notify application that data has been received. */ + TCP_EVENT_RECV(pcb, recv_data, ERR_OK, err); + if (err == ERR_ABRT) { +#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE + if (rest != NULL) { + pbuf_free(rest); + } +#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + goto aborted; + } + + /* If the upper layer can't receive this data, store it */ + if (err != ERR_OK) { +#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE + if (rest != NULL) { + pbuf_cat(recv_data, rest); + } +#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + pcb->refused_data = recv_data; + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: keep incoming packet, because pcb is \"full\"\n")); +#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE + break; + } else { + /* Upper layer received the data, go on with the rest if > 64K */ + recv_data = rest; +#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + } + } + + /* If a FIN segment was received, we call the callback + function with a NULL buffer to indicate EOF. */ + if (recv_flags & TF_GOT_FIN) { + if (pcb->refused_data != NULL) { + /* Delay this if we have refused data. */ + pcb->refused_data->flags |= PBUF_FLAG_TCP_FIN; + } else { + /* correct rcv_wnd as the application won't call tcp_recved() + for the FIN's seqno */ + if (pcb->rcv_wnd != TCP_WND_MAX(pcb)) { + pcb->rcv_wnd++; + } + TCP_EVENT_CLOSED(pcb, err); + if (err == ERR_ABRT) { + goto aborted; + } + } + } + + tcp_input_pcb = NULL; + if (tcp_input_delayed_close(pcb)) { + goto aborted; + } + /* Try to send something out. */ + tcp_output(pcb); +#if TCP_INPUT_DEBUG +#if TCP_DEBUG + tcp_debug_print_state(pcb->state); +#endif /* TCP_DEBUG */ +#endif /* TCP_INPUT_DEBUG */ + } + } + /* Jump target if pcb has been aborted in a callback (by calling tcp_abort()). + Below this line, 'pcb' may not be dereferenced! */ +aborted: + tcp_input_pcb = NULL; + recv_data = NULL; + + /* give up our reference to inseg.p */ + if (inseg.p != NULL) { + pbuf_free(inseg.p); + inseg.p = NULL; + } + } else { + /* If no matching PCB was found, send a TCP RST (reset) to the + sender. */ + LWIP_DEBUGF(TCP_RST_DEBUG, ("tcp_input: no PCB match found, resetting.\n")); + if (!(TCPH_FLAGS(tcphdr) & TCP_RST)) { + TCP_STATS_INC(tcp.proterr); + TCP_STATS_INC(tcp.drop); + tcp_rst(NULL, ackno, seqno + tcplen, ip_current_dest_addr(), + ip_current_src_addr(), tcphdr->dest, tcphdr->src); + } + pbuf_free(p); + } + + LWIP_ASSERT("tcp_input: tcp_pcbs_sane()", tcp_pcbs_sane()); + PERF_STOP("tcp_input"); + return; +dropped: + TCP_STATS_INC(tcp.drop); + MIB2_STATS_INC(mib2.tcpinerrs); + pbuf_free(p); +} + +/** Called from tcp_input to check for TF_CLOSED flag. This results in closing + * and deallocating a pcb at the correct place to ensure no one references it + * any more. + * @returns 1 if the pcb has been closed and deallocated, 0 otherwise + */ +static int +tcp_input_delayed_close(struct tcp_pcb *pcb) +{ + LWIP_ASSERT("tcp_input_delayed_close: invalid pcb", pcb != NULL); + + if (recv_flags & TF_CLOSED) { + /* The connection has been closed and we will deallocate the + PCB. */ + if (!(pcb->flags & TF_RXCLOSED)) { + /* Connection closed although the application has only shut down the + tx side: call the PCB's err callback and indicate the closure to + ensure the application doesn't continue using the PCB. */ + TCP_EVENT_ERR(pcb->state, pcb->errf, pcb->callback_arg, ERR_CLSD); + } + tcp_pcb_remove(&tcp_active_pcbs, pcb); + tcp_free(pcb); + return 1; + } + return 0; +} + +/** + * Called by tcp_input() when a segment arrives for a listening + * connection (from tcp_input()). + * + * @param pcb the tcp_pcb_listen for which a segment arrived + * + * @note the segment which arrived is saved in global variables, therefore only the pcb + * involved is passed as a parameter to this function + */ +static void +tcp_listen_input(struct tcp_pcb_listen *pcb) +{ + struct tcp_pcb *npcb; + u32_t iss; + err_t rc; + + if (flags & TCP_RST) { + /* An incoming RST should be ignored. Return. */ + return; + } + + LWIP_ASSERT("tcp_listen_input: invalid pcb", pcb != NULL); + + /* In the LISTEN state, we check for incoming SYN segments, + creates a new PCB, and responds with a SYN|ACK. */ + if (flags & TCP_ACK) { + /* For incoming segments with the ACK flag set, respond with a + RST. */ + LWIP_DEBUGF(TCP_RST_DEBUG, ("tcp_listen_input: ACK in LISTEN, sending reset\n")); + tcp_rst((const struct tcp_pcb *)pcb, ackno, seqno + tcplen, ip_current_dest_addr(), + ip_current_src_addr(), tcphdr->dest, tcphdr->src); + } else if (flags & TCP_SYN) { + LWIP_DEBUGF(TCP_DEBUG, ("TCP connection request %"U16_F" -> %"U16_F".\n", tcphdr->src, tcphdr->dest)); +#if TCP_LISTEN_BACKLOG + if (pcb->accepts_pending >= pcb->backlog) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_listen_input: listen backlog exceeded for port %"U16_F"\n", tcphdr->dest)); + return; + } +#endif /* TCP_LISTEN_BACKLOG */ + npcb = tcp_alloc(pcb->prio); + /* If a new PCB could not be created (probably due to lack of memory), + we don't do anything, but rely on the sender will retransmit the + SYN at a time when we have more memory available. */ + if (npcb == NULL) { + err_t err; + LWIP_DEBUGF(TCP_DEBUG, ("tcp_listen_input: could not allocate PCB\n")); + TCP_STATS_INC(tcp.memerr); + TCP_EVENT_ACCEPT(pcb, NULL, pcb->callback_arg, ERR_MEM, err); + LWIP_UNUSED_ARG(err); /* err not useful here */ + return; + } +#if TCP_LISTEN_BACKLOG + pcb->accepts_pending++; + tcp_set_flags(npcb, TF_BACKLOGPEND); +#endif /* TCP_LISTEN_BACKLOG */ + /* Set up the new PCB. */ + ip_addr_copy(npcb->local_ip, *ip_current_dest_addr()); + ip_addr_copy(npcb->remote_ip, *ip_current_src_addr()); + npcb->local_port = pcb->local_port; + npcb->remote_port = tcphdr->src; + npcb->state = SYN_RCVD; + npcb->rcv_nxt = seqno + 1; + npcb->rcv_ann_right_edge = npcb->rcv_nxt; + iss = tcp_next_iss(npcb); + npcb->snd_wl2 = iss; + npcb->snd_nxt = iss; + npcb->lastack = iss; + npcb->snd_lbb = iss; + npcb->snd_wl1 = seqno - 1;/* initialise to seqno-1 to force window update */ + npcb->callback_arg = pcb->callback_arg; +#if LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG + npcb->listener = pcb; +#endif /* LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG */ +#if LWIP_VLAN_PCP + npcb->netif_hints.tci = pcb->netif_hints.tci; +#endif /* LWIP_VLAN_PCP */ + /* inherit socket options */ + npcb->so_options = pcb->so_options & SOF_INHERITED; + npcb->netif_idx = pcb->netif_idx; + /* Register the new PCB so that we can begin receiving segments + for it. */ + TCP_REG_ACTIVE(npcb); + + /* Parse any options in the SYN. */ + tcp_parseopt(npcb); + npcb->snd_wnd = tcphdr->wnd; + npcb->snd_wnd_max = npcb->snd_wnd; + +#if TCP_CALCULATE_EFF_SEND_MSS + npcb->mss = tcp_eff_send_mss(npcb->mss, &npcb->local_ip, &npcb->remote_ip); +#endif /* TCP_CALCULATE_EFF_SEND_MSS */ + + MIB2_STATS_INC(mib2.tcppassiveopens); + +#if LWIP_TCP_PCB_NUM_EXT_ARGS + if (tcp_ext_arg_invoke_callbacks_passive_open(pcb, npcb) != ERR_OK) { + tcp_abandon(npcb, 0); + return; + } +#endif + + /* Send a SYN|ACK together with the MSS option. */ + rc = tcp_enqueue_flags(npcb, TCP_SYN | TCP_ACK); + if (rc != ERR_OK) { + tcp_abandon(npcb, 0); + return; + } + tcp_output(npcb); + } + return; +} + +/** + * Called by tcp_input() when a segment arrives for a connection in + * TIME_WAIT. + * + * @param pcb the tcp_pcb for which a segment arrived + * + * @note the segment which arrived is saved in global variables, therefore only the pcb + * involved is passed as a parameter to this function + */ +static void +tcp_timewait_input(struct tcp_pcb *pcb) +{ + /* RFC 1337: in TIME_WAIT, ignore RST and ACK FINs + any 'acceptable' segments */ + /* RFC 793 3.9 Event Processing - Segment Arrives: + * - first check sequence number - we skip that one in TIME_WAIT (always + * acceptable since we only send ACKs) + * - second check the RST bit (... return) */ + if (flags & TCP_RST) { + return; + } + + LWIP_ASSERT("tcp_timewait_input: invalid pcb", pcb != NULL); + + /* - fourth, check the SYN bit, */ + if (flags & TCP_SYN) { + /* If an incoming segment is not acceptable, an acknowledgment + should be sent in reply */ + if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, pcb->rcv_nxt + pcb->rcv_wnd)) { + /* If the SYN is in the window it is an error, send a reset */ + tcp_rst(pcb, ackno, seqno + tcplen, ip_current_dest_addr(), + ip_current_src_addr(), tcphdr->dest, tcphdr->src); + return; + } + } else if (flags & TCP_FIN) { + /* - eighth, check the FIN bit: Remain in the TIME-WAIT state. + Restart the 2 MSL time-wait timeout.*/ + pcb->tmr = tcp_ticks; + } + + if ((tcplen > 0)) { + /* Acknowledge data, FIN or out-of-window SYN */ + tcp_ack_now(pcb); + tcp_output(pcb); + } + return; +} + +/** + * Implements the TCP state machine. Called by tcp_input. In some + * states tcp_receive() is called to receive data. The tcp_seg + * argument will be freed by the caller (tcp_input()) unless the + * recv_data pointer in the pcb is set. + * + * @param pcb the tcp_pcb for which a segment arrived + * + * @note the segment which arrived is saved in global variables, therefore only the pcb + * involved is passed as a parameter to this function + */ +static err_t +tcp_process(struct tcp_pcb *pcb) +{ + struct tcp_seg *rseg; + u8_t acceptable = 0; + err_t err; + + err = ERR_OK; + + LWIP_ASSERT("tcp_process: invalid pcb", pcb != NULL); + + /* Process incoming RST segments. */ + if (flags & TCP_RST) { + /* First, determine if the reset is acceptable. */ + if (pcb->state == SYN_SENT) { + /* "In the SYN-SENT state (a RST received in response to an initial SYN), + the RST is acceptable if the ACK field acknowledges the SYN." */ + if (ackno == pcb->snd_nxt) { + acceptable = 1; + } + } else { + /* "In all states except SYN-SENT, all reset (RST) segments are validated + by checking their SEQ-fields." */ + if (seqno == pcb->rcv_nxt) { + acceptable = 1; + } else if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, + pcb->rcv_nxt + pcb->rcv_wnd)) { + /* If the sequence number is inside the window, we send a challenge ACK + and wait for a re-send with matching sequence number. + This follows RFC 5961 section 3.2 and addresses CVE-2004-0230 + (RST spoofing attack), which is present in RFC 793 RST handling. */ + tcp_ack_now(pcb); + } + } + + if (acceptable) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_process: Connection RESET\n")); + LWIP_ASSERT("tcp_input: pcb->state != CLOSED", pcb->state != CLOSED); + recv_flags |= TF_RESET; + tcp_clear_flags(pcb, TF_ACK_DELAY); + return ERR_RST; + } else { + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_process: unacceptable reset seqno %"U32_F" rcv_nxt %"U32_F"\n", + seqno, pcb->rcv_nxt)); + LWIP_DEBUGF(TCP_DEBUG, ("tcp_process: unacceptable reset seqno %"U32_F" rcv_nxt %"U32_F"\n", + seqno, pcb->rcv_nxt)); + return ERR_OK; + } + } + + if ((flags & TCP_SYN) && (pcb->state != SYN_SENT && pcb->state != SYN_RCVD)) { + /* Cope with new connection attempt after remote end crashed */ + tcp_ack_now(pcb); + return ERR_OK; + } + + if ((pcb->flags & TF_RXCLOSED) == 0) { + /* Update the PCB (in)activity timer unless rx is closed (see tcp_shutdown) */ + pcb->tmr = tcp_ticks; + } + pcb->keep_cnt_sent = 0; + pcb->persist_probe = 0; + + tcp_parseopt(pcb); + + if (flags & TCP_SYN) { + /* accept SYN only in 2 states: */ + if ((pcb->state != SYN_SENT) && (pcb->state != SYN_RCVD)) { + return ERR_OK; + } + } + + /* Do different things depending on the TCP state. */ + switch (pcb->state) { + case SYN_SENT: + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("SYN-SENT: ackno %"U32_F" pcb->snd_nxt %"U32_F" unacked %s %"U32_F"\n", + ackno, pcb->snd_nxt, pcb->unacked ? "" : " empty:", + pcb->unacked ? lwip_ntohl(pcb->unacked->tcphdr->seqno) : 0)); + /* received SYN ACK with expected sequence number? */ + if ((flags & TCP_ACK) && (flags & TCP_SYN) + && (ackno == pcb->lastack + 1)) { + pcb->rcv_nxt = seqno + 1; + pcb->rcv_ann_right_edge = pcb->rcv_nxt; + pcb->lastack = ackno; + pcb->snd_wnd = tcphdr->wnd; + pcb->snd_wnd_max = pcb->snd_wnd; + pcb->snd_wl1 = seqno - 1; /* initialise to seqno - 1 to force window update */ + pcb->state = ESTABLISHED; + +#if TCP_CALCULATE_EFF_SEND_MSS + pcb->mss = tcp_eff_send_mss(pcb->mss, &pcb->local_ip, &pcb->remote_ip); +#endif /* TCP_CALCULATE_EFF_SEND_MSS */ + + pcb->cwnd = LWIP_TCP_CALC_INITIAL_CWND(pcb->mss); + LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_process (SENT): cwnd %"TCPWNDSIZE_F + " ssthresh %"TCPWNDSIZE_F"\n", + pcb->cwnd, pcb->ssthresh)); + LWIP_ASSERT("pcb->snd_queuelen > 0", (pcb->snd_queuelen > 0)); + --pcb->snd_queuelen; + LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_process: SYN-SENT --queuelen %"TCPWNDSIZE_F"\n", (tcpwnd_size_t)pcb->snd_queuelen)); + rseg = pcb->unacked; + if (rseg == NULL) { + /* might happen if tcp_output fails in tcp_rexmit_rto() + in which case the segment is on the unsent list */ + rseg = pcb->unsent; + LWIP_ASSERT("no segment to free", rseg != NULL); + pcb->unsent = rseg->next; + } else { + pcb->unacked = rseg->next; + } + tcp_seg_free(rseg); + + /* If there's nothing left to acknowledge, stop the retransmit + timer, otherwise reset it to start again */ + if (pcb->unacked == NULL) { + pcb->rtime = -1; + } else { + pcb->rtime = 0; + pcb->nrtx = 0; + } + + /* Call the user specified function to call when successfully + * connected. */ + TCP_EVENT_CONNECTED(pcb, ERR_OK, err); + if (err == ERR_ABRT) { + return ERR_ABRT; + } + tcp_ack_now(pcb); + } + /* received ACK? possibly a half-open connection */ + else if (flags & TCP_ACK) { + /* send a RST to bring the other side in a non-synchronized state. */ + tcp_rst(pcb, ackno, seqno + tcplen, ip_current_dest_addr(), + ip_current_src_addr(), tcphdr->dest, tcphdr->src); + /* Resend SYN immediately (don't wait for rto timeout) to establish + connection faster, but do not send more SYNs than we otherwise would + have, or we might get caught in a loop on loopback interfaces. */ + if (pcb->nrtx < TCP_SYNMAXRTX) { + pcb->rtime = 0; + tcp_rexmit_rto(pcb); + } + } + break; + case SYN_RCVD: + if (flags & TCP_SYN) { + if (seqno == pcb->rcv_nxt - 1) { + /* Looks like another copy of the SYN - retransmit our SYN-ACK */ + tcp_rexmit(pcb); + } + } else if (flags & TCP_ACK) { + /* expected ACK number? */ + if (TCP_SEQ_BETWEEN(ackno, pcb->lastack + 1, pcb->snd_nxt)) { + pcb->state = ESTABLISHED; + LWIP_DEBUGF(TCP_DEBUG, ("TCP connection established %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest)); +#if LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG + if (pcb->listener == NULL) { + /* listen pcb might be closed by now */ + err = ERR_VAL; + } else +#endif /* LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG */ + { +#if LWIP_CALLBACK_API + LWIP_ASSERT("pcb->listener->accept != NULL", pcb->listener->accept != NULL); +#endif + tcp_backlog_accepted(pcb); + /* Call the accept function. */ + TCP_EVENT_ACCEPT(pcb->listener, pcb, pcb->callback_arg, ERR_OK, err); + } + if (err != ERR_OK) { + /* If the accept function returns with an error, we abort + * the connection. */ + /* Already aborted? */ + if (err != ERR_ABRT) { + tcp_abort(pcb); + } + return ERR_ABRT; + } + /* If there was any data contained within this ACK, + * we'd better pass it on to the application as well. */ + tcp_receive(pcb); + + /* Prevent ACK for SYN to generate a sent event */ + if (recv_acked != 0) { + recv_acked--; + } + + pcb->cwnd = LWIP_TCP_CALC_INITIAL_CWND(pcb->mss); + LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_process (SYN_RCVD): cwnd %"TCPWNDSIZE_F + " ssthresh %"TCPWNDSIZE_F"\n", + pcb->cwnd, pcb->ssthresh)); + + if (recv_flags & TF_GOT_FIN) { + tcp_ack_now(pcb); + pcb->state = CLOSE_WAIT; + } + } else { + /* incorrect ACK number, send RST */ + tcp_rst(pcb, ackno, seqno + tcplen, ip_current_dest_addr(), + ip_current_src_addr(), tcphdr->dest, tcphdr->src); + } + } + break; + case CLOSE_WAIT: + /* FALLTHROUGH */ + case ESTABLISHED: + tcp_receive(pcb); + if (recv_flags & TF_GOT_FIN) { /* passive close */ + tcp_ack_now(pcb); + pcb->state = CLOSE_WAIT; + } + break; + case FIN_WAIT_1: + tcp_receive(pcb); + if (recv_flags & TF_GOT_FIN) { + if ((flags & TCP_ACK) && (ackno == pcb->snd_nxt) && + pcb->unsent == NULL) { + LWIP_DEBUGF(TCP_DEBUG, + ("TCP connection closed: FIN_WAIT_1 %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest)); + tcp_ack_now(pcb); + tcp_pcb_purge(pcb); + TCP_RMV_ACTIVE(pcb); + pcb->state = TIME_WAIT; + TCP_REG(&tcp_tw_pcbs, pcb); + } else { + tcp_ack_now(pcb); + pcb->state = CLOSING; + } + } else if ((flags & TCP_ACK) && (ackno == pcb->snd_nxt) && + pcb->unsent == NULL) { + pcb->state = FIN_WAIT_2; + } + break; + case FIN_WAIT_2: + tcp_receive(pcb); + if (recv_flags & TF_GOT_FIN) { + LWIP_DEBUGF(TCP_DEBUG, ("TCP connection closed: FIN_WAIT_2 %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest)); + tcp_ack_now(pcb); + tcp_pcb_purge(pcb); + TCP_RMV_ACTIVE(pcb); + pcb->state = TIME_WAIT; + TCP_REG(&tcp_tw_pcbs, pcb); + } + break; + case CLOSING: + tcp_receive(pcb); + if ((flags & TCP_ACK) && ackno == pcb->snd_nxt && pcb->unsent == NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("TCP connection closed: CLOSING %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest)); + tcp_pcb_purge(pcb); + TCP_RMV_ACTIVE(pcb); + pcb->state = TIME_WAIT; + TCP_REG(&tcp_tw_pcbs, pcb); + } + break; + case LAST_ACK: + tcp_receive(pcb); + if ((flags & TCP_ACK) && ackno == pcb->snd_nxt && pcb->unsent == NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("TCP connection closed: LAST_ACK %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest)); + /* bugfix #21699: don't set pcb->state to CLOSED here or we risk leaking segments */ + recv_flags |= TF_CLOSED; + } + break; + default: + break; + } + return ERR_OK; +} + +#if TCP_QUEUE_OOSEQ +/** + * Insert segment into the list (segments covered with new one will be deleted) + * + * Called from tcp_receive() + */ +static void +tcp_oos_insert_segment(struct tcp_seg *cseg, struct tcp_seg *next) +{ + struct tcp_seg *old_seg; + + LWIP_ASSERT("tcp_oos_insert_segment: invalid cseg", cseg != NULL); + + if (TCPH_FLAGS(cseg->tcphdr) & TCP_FIN) { + /* received segment overlaps all following segments */ + tcp_segs_free(next); + next = NULL; + } else { + /* delete some following segments + oos queue may have segments with FIN flag */ + while (next && + TCP_SEQ_GEQ((seqno + cseg->len), + (next->tcphdr->seqno + next->len))) { + /* cseg with FIN already processed */ + if (TCPH_FLAGS(next->tcphdr) & TCP_FIN) { + TCPH_SET_FLAG(cseg->tcphdr, TCP_FIN); + } + old_seg = next; + next = next->next; + tcp_seg_free(old_seg); + } + if (next && + TCP_SEQ_GT(seqno + cseg->len, next->tcphdr->seqno)) { + /* We need to trim the incoming segment. */ + cseg->len = (u16_t)(next->tcphdr->seqno - seqno); + pbuf_realloc(cseg->p, cseg->len); + } + } + cseg->next = next; +} +#endif /* TCP_QUEUE_OOSEQ */ + +/** Remove segments from a list if the incoming ACK acknowledges them */ +static struct tcp_seg * +tcp_free_acked_segments(struct tcp_pcb *pcb, struct tcp_seg *seg_list, const char *dbg_list_name, + struct tcp_seg *dbg_other_seg_list) +{ + struct tcp_seg *next; + u16_t clen; + + LWIP_UNUSED_ARG(dbg_list_name); + LWIP_UNUSED_ARG(dbg_other_seg_list); + + while (seg_list != NULL && + TCP_SEQ_LEQ(lwip_ntohl(seg_list->tcphdr->seqno) + + TCP_TCPLEN(seg_list), ackno)) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: removing %"U32_F":%"U32_F" from pcb->%s\n", + lwip_ntohl(seg_list->tcphdr->seqno), + lwip_ntohl(seg_list->tcphdr->seqno) + TCP_TCPLEN(seg_list), + dbg_list_name)); + + next = seg_list; + seg_list = seg_list->next; + + clen = pbuf_clen(next->p); + LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_receive: queuelen %"TCPWNDSIZE_F" ... ", + (tcpwnd_size_t)pcb->snd_queuelen)); + LWIP_ASSERT("pcb->snd_queuelen >= pbuf_clen(next->p)", (pcb->snd_queuelen >= clen)); + + pcb->snd_queuelen = (u16_t)(pcb->snd_queuelen - clen); + recv_acked = (tcpwnd_size_t)(recv_acked + next->len); + tcp_seg_free(next); + + LWIP_DEBUGF(TCP_QLEN_DEBUG, ("%"TCPWNDSIZE_F" (after freeing %s)\n", + (tcpwnd_size_t)pcb->snd_queuelen, + dbg_list_name)); + if (pcb->snd_queuelen != 0) { + LWIP_ASSERT("tcp_receive: valid queue length", + seg_list != NULL || dbg_other_seg_list != NULL); + } + } + return seg_list; +} + +/** + * Called by tcp_process. Checks if the given segment is an ACK for outstanding + * data, and if so frees the memory of the buffered data. Next, it places the + * segment on any of the receive queues (pcb->recved or pcb->ooseq). If the segment + * is buffered, the pbuf is referenced by pbuf_ref so that it will not be freed until + * it has been removed from the buffer. + * + * If the incoming segment constitutes an ACK for a segment that was used for RTT + * estimation, the RTT is estimated here as well. + * + * Called from tcp_process(). + */ +static void +tcp_receive(struct tcp_pcb *pcb) +{ + s16_t m; + u32_t right_wnd_edge; + + LWIP_ASSERT("tcp_receive: invalid pcb", pcb != NULL); + LWIP_ASSERT("tcp_receive: wrong state", pcb->state >= ESTABLISHED); + + if (flags & TCP_ACK) { + right_wnd_edge = pcb->snd_wnd + pcb->snd_wl2; + + /* Update window. */ + if (TCP_SEQ_LT(pcb->snd_wl1, seqno) || + (pcb->snd_wl1 == seqno && TCP_SEQ_LT(pcb->snd_wl2, ackno)) || + (pcb->snd_wl2 == ackno && (u32_t)SND_WND_SCALE(pcb, tcphdr->wnd) > pcb->snd_wnd)) { + pcb->snd_wnd = SND_WND_SCALE(pcb, tcphdr->wnd); + /* keep track of the biggest window announced by the remote host to calculate + the maximum segment size */ + if (pcb->snd_wnd_max < pcb->snd_wnd) { + pcb->snd_wnd_max = pcb->snd_wnd; + } + pcb->snd_wl1 = seqno; + pcb->snd_wl2 = ackno; + LWIP_DEBUGF(TCP_WND_DEBUG, ("tcp_receive: window update %"TCPWNDSIZE_F"\n", pcb->snd_wnd)); +#if TCP_WND_DEBUG + } else { + if (pcb->snd_wnd != (tcpwnd_size_t)SND_WND_SCALE(pcb, tcphdr->wnd)) { + LWIP_DEBUGF(TCP_WND_DEBUG, + ("tcp_receive: no window update lastack %"U32_F" ackno %" + U32_F" wl1 %"U32_F" seqno %"U32_F" wl2 %"U32_F"\n", + pcb->lastack, ackno, pcb->snd_wl1, seqno, pcb->snd_wl2)); + } +#endif /* TCP_WND_DEBUG */ + } + + /* (From Stevens TCP/IP Illustrated Vol II, p970.) Its only a + * duplicate ack if: + * 1) It doesn't ACK new data + * 2) length of received packet is zero (i.e. no payload) + * 3) the advertised window hasn't changed + * 4) There is outstanding unacknowledged data (retransmission timer running) + * 5) The ACK is == biggest ACK sequence number so far seen (snd_una) + * + * If it passes all five, should process as a dupack: + * a) dupacks < 3: do nothing + * b) dupacks == 3: fast retransmit + * c) dupacks > 3: increase cwnd + * + * If it only passes 1-3, should reset dupack counter (and add to + * stats, which we don't do in lwIP) + * + * If it only passes 1, should reset dupack counter + * + */ + + /* Clause 1 */ + if (TCP_SEQ_LEQ(ackno, pcb->lastack)) { + /* Clause 2 */ + if (tcplen == 0) { + /* Clause 3 */ + if (pcb->snd_wl2 + pcb->snd_wnd == right_wnd_edge) { + /* Clause 4 */ + if (pcb->rtime >= 0) { + /* Clause 5 */ + if (pcb->lastack == ackno) { + if ((u8_t)(pcb->dupacks + 1) > pcb->dupacks) { + ++pcb->dupacks; + } + if (pcb->dupacks > 3) { + /* Inflate the congestion window */ + TCP_WND_INC(pcb->cwnd, pcb->mss); + } + if (pcb->dupacks >= 3) { + /* Do fast retransmit (checked via TF_INFR, not via dupacks count) */ + tcp_rexmit_fast(pcb); + } + } + } + } + } + } else if (TCP_SEQ_BETWEEN(ackno, pcb->lastack + 1, pcb->snd_nxt)) { + /* We come here when the ACK acknowledges new data. */ + tcpwnd_size_t acked; + + /* Reset the "IN Fast Retransmit" flag, since we are no longer + in fast retransmit. Also reset the congestion window to the + slow start threshold. */ + if (pcb->flags & TF_INFR) { + tcp_clear_flags(pcb, TF_INFR); + pcb->cwnd = pcb->ssthresh; + pcb->bytes_acked = 0; + } + + /* Reset the number of retransmissions. */ + pcb->nrtx = 0; + + /* Reset the retransmission time-out. */ + pcb->rto = (s16_t)((pcb->sa >> 3) + pcb->sv); + + /* Record how much data this ACK acks */ + acked = (tcpwnd_size_t)(ackno - pcb->lastack); + + /* Reset the fast retransmit variables. */ + pcb->dupacks = 0; + pcb->lastack = ackno; + + /* Update the congestion control variables (cwnd and + ssthresh). */ + if (pcb->state >= ESTABLISHED) { + if (pcb->cwnd < pcb->ssthresh) { + tcpwnd_size_t increase; + /* limit to 1 SMSS segment during period following RTO */ + u8_t num_seg = (pcb->flags & TF_RTO) ? 1 : 2; + /* RFC 3465, section 2.2 Slow Start */ + increase = LWIP_MIN(acked, (tcpwnd_size_t)(num_seg * pcb->mss)); + TCP_WND_INC(pcb->cwnd, increase); + LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_receive: slow start cwnd %"TCPWNDSIZE_F"\n", pcb->cwnd)); + } else { + /* RFC 3465, section 2.1 Congestion Avoidance */ + TCP_WND_INC(pcb->bytes_acked, acked); + if (pcb->bytes_acked >= pcb->cwnd) { + pcb->bytes_acked = (tcpwnd_size_t)(pcb->bytes_acked - pcb->cwnd); + TCP_WND_INC(pcb->cwnd, pcb->mss); + } + LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_receive: congestion avoidance cwnd %"TCPWNDSIZE_F"\n", pcb->cwnd)); + } + } + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: ACK for %"U32_F", unacked->seqno %"U32_F":%"U32_F"\n", + ackno, + pcb->unacked != NULL ? + lwip_ntohl(pcb->unacked->tcphdr->seqno) : 0, + pcb->unacked != NULL ? + lwip_ntohl(pcb->unacked->tcphdr->seqno) + TCP_TCPLEN(pcb->unacked) : 0)); + + /* Remove segment from the unacknowledged list if the incoming + ACK acknowledges them. */ + pcb->unacked = tcp_free_acked_segments(pcb, pcb->unacked, "unacked", pcb->unsent); + /* We go through the ->unsent list to see if any of the segments + on the list are acknowledged by the ACK. This may seem + strange since an "unsent" segment shouldn't be acked. The + rationale is that lwIP puts all outstanding segments on the + ->unsent list after a retransmission, so these segments may + in fact have been sent once. */ + pcb->unsent = tcp_free_acked_segments(pcb, pcb->unsent, "unsent", pcb->unacked); + + /* If there's nothing left to acknowledge, stop the retransmit + timer, otherwise reset it to start again */ + if (pcb->unacked == NULL) { + pcb->rtime = -1; + } else { + pcb->rtime = 0; + } + + pcb->polltmr = 0; + +#if TCP_OVERSIZE + if (pcb->unsent == NULL) { + pcb->unsent_oversize = 0; + } +#endif /* TCP_OVERSIZE */ + +#if LWIP_IPV6 && LWIP_ND6_TCP_REACHABILITY_HINTS + if (ip_current_is_v6()) { + /* Inform neighbor reachability of forward progress. */ + nd6_reachability_hint(ip6_current_src_addr()); + } +#endif /* LWIP_IPV6 && LWIP_ND6_TCP_REACHABILITY_HINTS*/ + + pcb->snd_buf = (tcpwnd_size_t)(pcb->snd_buf + recv_acked); + /* check if this ACK ends our retransmission of in-flight data */ + if (pcb->flags & TF_RTO) { + /* RTO is done if + 1) both queues are empty or + 2) unacked is empty and unsent head contains data not part of RTO or + 3) unacked head contains data not part of RTO */ + if (pcb->unacked == NULL) { + if ((pcb->unsent == NULL) || + (TCP_SEQ_LEQ(pcb->rto_end, lwip_ntohl(pcb->unsent->tcphdr->seqno)))) { + tcp_clear_flags(pcb, TF_RTO); + } + } else if (TCP_SEQ_LEQ(pcb->rto_end, lwip_ntohl(pcb->unacked->tcphdr->seqno))) { + tcp_clear_flags(pcb, TF_RTO); + } + } + /* End of ACK for new data processing. */ + } else { + /* Out of sequence ACK, didn't really ack anything */ + tcp_send_empty_ack(pcb); + } + + LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_receive: pcb->rttest %"U32_F" rtseq %"U32_F" ackno %"U32_F"\n", + pcb->rttest, pcb->rtseq, ackno)); + + /* RTT estimation calculations. This is done by checking if the + incoming segment acknowledges the segment we use to take a + round-trip time measurement. */ + if (pcb->rttest && TCP_SEQ_LT(pcb->rtseq, ackno)) { + /* diff between this shouldn't exceed 32K since this are tcp timer ticks + and a round-trip shouldn't be that long... */ + m = (s16_t)(tcp_ticks - pcb->rttest); + + LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_receive: experienced rtt %"U16_F" ticks (%"U16_F" msec).\n", + m, (u16_t)(m * TCP_SLOW_INTERVAL))); + + /* This is taken directly from VJs original code in his paper */ + m = (s16_t)(m - (pcb->sa >> 3)); + pcb->sa = (s16_t)(pcb->sa + m); + if (m < 0) { + m = (s16_t) - m; + } + m = (s16_t)(m - (pcb->sv >> 2)); + pcb->sv = (s16_t)(pcb->sv + m); + pcb->rto = (s16_t)((pcb->sa >> 3) + pcb->sv); + + LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_receive: RTO %"U16_F" (%"U16_F" milliseconds)\n", + pcb->rto, (u16_t)(pcb->rto * TCP_SLOW_INTERVAL))); + + pcb->rttest = 0; + } + } + + /* If the incoming segment contains data, we must process it + further unless the pcb already received a FIN. + (RFC 793, chapter 3.9, "SEGMENT ARRIVES" in states CLOSE-WAIT, CLOSING, + LAST-ACK and TIME-WAIT: "Ignore the segment text.") */ + if ((tcplen > 0) && (pcb->state < CLOSE_WAIT)) { + /* This code basically does three things: + + +) If the incoming segment contains data that is the next + in-sequence data, this data is passed to the application. This + might involve trimming the first edge of the data. The rcv_nxt + variable and the advertised window are adjusted. + + +) If the incoming segment has data that is above the next + sequence number expected (->rcv_nxt), the segment is placed on + the ->ooseq queue. This is done by finding the appropriate + place in the ->ooseq queue (which is ordered by sequence + number) and trim the segment in both ends if needed. An + immediate ACK is sent to indicate that we received an + out-of-sequence segment. + + +) Finally, we check if the first segment on the ->ooseq queue + now is in sequence (i.e., if rcv_nxt >= ooseq->seqno). If + rcv_nxt > ooseq->seqno, we must trim the first edge of the + segment on ->ooseq before we adjust rcv_nxt. The data in the + segments that are now on sequence are chained onto the + incoming segment so that we only need to call the application + once. + */ + + /* First, we check if we must trim the first edge. We have to do + this if the sequence number of the incoming segment is less + than rcv_nxt, and the sequence number plus the length of the + segment is larger than rcv_nxt. */ + /* if (TCP_SEQ_LT(seqno, pcb->rcv_nxt)) { + if (TCP_SEQ_LT(pcb->rcv_nxt, seqno + tcplen)) {*/ + if (TCP_SEQ_BETWEEN(pcb->rcv_nxt, seqno + 1, seqno + tcplen - 1)) { + /* Trimming the first edge is done by pushing the payload + pointer in the pbuf downwards. This is somewhat tricky since + we do not want to discard the full contents of the pbuf up to + the new starting point of the data since we have to keep the + TCP header which is present in the first pbuf in the chain. + + What is done is really quite a nasty hack: the first pbuf in + the pbuf chain is pointed to by inseg.p. Since we need to be + able to deallocate the whole pbuf, we cannot change this + inseg.p pointer to point to any of the later pbufs in the + chain. Instead, we point the ->payload pointer in the first + pbuf to data in one of the later pbufs. We also set the + inseg.data pointer to point to the right place. This way, the + ->p pointer will still point to the first pbuf, but the + ->p->payload pointer will point to data in another pbuf. + + After we are done with adjusting the pbuf pointers we must + adjust the ->data pointer in the seg and the segment + length.*/ + + struct pbuf *p = inseg.p; + u32_t off32 = pcb->rcv_nxt - seqno; + u16_t new_tot_len, off; + LWIP_ASSERT("inseg.p != NULL", inseg.p); + LWIP_ASSERT("insane offset!", (off32 < 0xffff)); + off = (u16_t)off32; + LWIP_ASSERT("pbuf too short!", (((s32_t)inseg.p->tot_len) >= off)); + inseg.len -= off; + new_tot_len = (u16_t)(inseg.p->tot_len - off); + while (p->len < off) { + off -= p->len; + /* all pbufs up to and including this one have len==0, so tot_len is equal */ + p->tot_len = new_tot_len; + p->len = 0; + p = p->next; + } + /* cannot fail... */ + pbuf_remove_header(p, off); + inseg.tcphdr->seqno = seqno = pcb->rcv_nxt; + } else { + if (TCP_SEQ_LT(seqno, pcb->rcv_nxt)) { + /* the whole segment is < rcv_nxt */ + /* must be a duplicate of a packet that has already been correctly handled */ + + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: duplicate seqno %"U32_F"\n", seqno)); + tcp_ack_now(pcb); + } + } + + /* The sequence number must be within the window (above rcv_nxt + and below rcv_nxt + rcv_wnd) in order to be further + processed. */ + if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, + pcb->rcv_nxt + pcb->rcv_wnd - 1)) { + if (pcb->rcv_nxt == seqno) { + /* The incoming segment is the next in sequence. We check if + we have to trim the end of the segment and update rcv_nxt + and pass the data to the application. */ + tcplen = TCP_TCPLEN(&inseg); + + if (tcplen > pcb->rcv_wnd) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, + ("tcp_receive: other end overran receive window" + "seqno %"U32_F" len %"U16_F" right edge %"U32_F"\n", + seqno, tcplen, pcb->rcv_nxt + pcb->rcv_wnd)); + if (TCPH_FLAGS(inseg.tcphdr) & TCP_FIN) { + /* Must remove the FIN from the header as we're trimming + * that byte of sequence-space from the packet */ + TCPH_FLAGS_SET(inseg.tcphdr, TCPH_FLAGS(inseg.tcphdr) & ~(unsigned int)TCP_FIN); + } + /* Adjust length of segment to fit in the window. */ + TCPWND_CHECK16(pcb->rcv_wnd); + inseg.len = (u16_t)pcb->rcv_wnd; + if (TCPH_FLAGS(inseg.tcphdr) & TCP_SYN) { + inseg.len -= 1; + } + pbuf_realloc(inseg.p, inseg.len); + tcplen = TCP_TCPLEN(&inseg); + LWIP_ASSERT("tcp_receive: segment not trimmed correctly to rcv_wnd", + (seqno + tcplen) == (pcb->rcv_nxt + pcb->rcv_wnd)); + } +#if TCP_QUEUE_OOSEQ + /* Received in-sequence data, adjust ooseq data if: + - FIN has been received or + - inseq overlaps with ooseq */ + if (pcb->ooseq != NULL) { + if (TCPH_FLAGS(inseg.tcphdr) & TCP_FIN) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, + ("tcp_receive: received in-order FIN, binning ooseq queue\n")); + /* Received in-order FIN means anything that was received + * out of order must now have been received in-order, so + * bin the ooseq queue */ + while (pcb->ooseq != NULL) { + struct tcp_seg *old_ooseq = pcb->ooseq; + pcb->ooseq = pcb->ooseq->next; + tcp_seg_free(old_ooseq); + } + } else { + struct tcp_seg *next = pcb->ooseq; + /* Remove all segments on ooseq that are covered by inseg already. + * FIN is copied from ooseq to inseg if present. */ + while (next && + TCP_SEQ_GEQ(seqno + tcplen, + next->tcphdr->seqno + next->len)) { + struct tcp_seg *tmp; + /* inseg cannot have FIN here (already processed above) */ + if ((TCPH_FLAGS(next->tcphdr) & TCP_FIN) != 0 && + (TCPH_FLAGS(inseg.tcphdr) & TCP_SYN) == 0) { + TCPH_SET_FLAG(inseg.tcphdr, TCP_FIN); + tcplen = TCP_TCPLEN(&inseg); + } + tmp = next; + next = next->next; + tcp_seg_free(tmp); + } + /* Now trim right side of inseg if it overlaps with the first + * segment on ooseq */ + if (next && + TCP_SEQ_GT(seqno + tcplen, + next->tcphdr->seqno)) { + /* inseg cannot have FIN here (already processed above) */ + inseg.len = (u16_t)(next->tcphdr->seqno - seqno); + if (TCPH_FLAGS(inseg.tcphdr) & TCP_SYN) { + inseg.len -= 1; + } + pbuf_realloc(inseg.p, inseg.len); + tcplen = TCP_TCPLEN(&inseg); + LWIP_ASSERT("tcp_receive: segment not trimmed correctly to ooseq queue", + (seqno + tcplen) == next->tcphdr->seqno); + } + pcb->ooseq = next; + } + } +#endif /* TCP_QUEUE_OOSEQ */ + + pcb->rcv_nxt = seqno + tcplen; + + /* Update the receiver's (our) window. */ + LWIP_ASSERT("tcp_receive: tcplen > rcv_wnd", pcb->rcv_wnd >= tcplen); + pcb->rcv_wnd -= tcplen; + + tcp_update_rcv_ann_wnd(pcb); + + /* If there is data in the segment, we make preparations to + pass this up to the application. The ->recv_data variable + is used for holding the pbuf that goes to the + application. The code for reassembling out-of-sequence data + chains its data on this pbuf as well. + + If the segment was a FIN, we set the TF_GOT_FIN flag that will + be used to indicate to the application that the remote side has + closed its end of the connection. */ + if (inseg.p->tot_len > 0) { + recv_data = inseg.p; + /* Since this pbuf now is the responsibility of the + application, we delete our reference to it so that we won't + (mistakingly) deallocate it. */ + inseg.p = NULL; + } + if (TCPH_FLAGS(inseg.tcphdr) & TCP_FIN) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: received FIN.\n")); + recv_flags |= TF_GOT_FIN; + } + +#if TCP_QUEUE_OOSEQ + /* We now check if we have segments on the ->ooseq queue that + are now in sequence. */ + while (pcb->ooseq != NULL && + pcb->ooseq->tcphdr->seqno == pcb->rcv_nxt) { + + struct tcp_seg *cseg = pcb->ooseq; + seqno = pcb->ooseq->tcphdr->seqno; + + pcb->rcv_nxt += TCP_TCPLEN(cseg); + LWIP_ASSERT("tcp_receive: ooseq tcplen > rcv_wnd", + pcb->rcv_wnd >= TCP_TCPLEN(cseg)); + pcb->rcv_wnd -= TCP_TCPLEN(cseg); + + tcp_update_rcv_ann_wnd(pcb); + + if (cseg->p->tot_len > 0) { + /* Chain this pbuf onto the pbuf that we will pass to + the application. */ + /* With window scaling, this can overflow recv_data->tot_len, but + that's not a problem since we explicitly fix that before passing + recv_data to the application. */ + if (recv_data) { + pbuf_cat(recv_data, cseg->p); + } else { + recv_data = cseg->p; + } + cseg->p = NULL; + } + if (TCPH_FLAGS(cseg->tcphdr) & TCP_FIN) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: dequeued FIN.\n")); + recv_flags |= TF_GOT_FIN; + if (pcb->state == ESTABLISHED) { /* force passive close or we can move to active close */ + pcb->state = CLOSE_WAIT; + } + } + + pcb->ooseq = cseg->next; + tcp_seg_free(cseg); + } +#if LWIP_TCP_SACK_OUT + if (pcb->flags & TF_SACK) { + if (pcb->ooseq != NULL) { + /* Some segments may have been removed from ooseq, let's remove all SACKs that + describe anything before the new beginning of that list. */ + tcp_remove_sacks_lt(pcb, pcb->ooseq->tcphdr->seqno); + } else if (LWIP_TCP_SACK_VALID(pcb, 0)) { + /* ooseq has been cleared. Nothing to SACK */ + memset(pcb->rcv_sacks, 0, sizeof(pcb->rcv_sacks)); + } + } +#endif /* LWIP_TCP_SACK_OUT */ +#endif /* TCP_QUEUE_OOSEQ */ + + + /* Acknowledge the segment(s). */ + tcp_ack(pcb); + +#if LWIP_TCP_SACK_OUT + if (LWIP_TCP_SACK_VALID(pcb, 0)) { + /* Normally the ACK for the data received could be piggy-backed on a data packet, + but lwIP currently does not support including SACKs in data packets. So we force + it to respond with an empty ACK packet (only if there is at least one SACK to be sent). + NOTE: tcp_send_empty_ack() on success clears the ACK flags (set by tcp_ack()) */ + tcp_send_empty_ack(pcb); + } +#endif /* LWIP_TCP_SACK_OUT */ + +#if LWIP_IPV6 && LWIP_ND6_TCP_REACHABILITY_HINTS + if (ip_current_is_v6()) { + /* Inform neighbor reachability of forward progress. */ + nd6_reachability_hint(ip6_current_src_addr()); + } +#endif /* LWIP_IPV6 && LWIP_ND6_TCP_REACHABILITY_HINTS*/ + + } else { + /* We get here if the incoming segment is out-of-sequence. */ + +#if TCP_QUEUE_OOSEQ + /* We queue the segment on the ->ooseq queue. */ + if (pcb->ooseq == NULL) { + pcb->ooseq = tcp_seg_copy(&inseg); +#if LWIP_TCP_SACK_OUT + if (pcb->flags & TF_SACK) { + /* All the SACKs should be invalid, so we can simply store the most recent one: */ + pcb->rcv_sacks[0].left = seqno; + pcb->rcv_sacks[0].right = seqno + inseg.len; + } +#endif /* LWIP_TCP_SACK_OUT */ + } else { + /* If the queue is not empty, we walk through the queue and + try to find a place where the sequence number of the + incoming segment is between the sequence numbers of the + previous and the next segment on the ->ooseq queue. That is + the place where we put the incoming segment. If needed, we + trim the second edges of the previous and the incoming + segment so that it will fit into the sequence. + + If the incoming segment has the same sequence number as a + segment on the ->ooseq queue, we discard the segment that + contains less data. */ + +#if LWIP_TCP_SACK_OUT + /* This is the left edge of the lowest possible SACK range. + It may start before the newly received segment (possibly adjusted below). */ + u32_t sackbeg = TCP_SEQ_LT(seqno, pcb->ooseq->tcphdr->seqno) ? seqno : pcb->ooseq->tcphdr->seqno; +#endif /* LWIP_TCP_SACK_OUT */ + struct tcp_seg *next, *prev = NULL; + for (next = pcb->ooseq; next != NULL; next = next->next) { + if (seqno == next->tcphdr->seqno) { + /* The sequence number of the incoming segment is the + same as the sequence number of the segment on + ->ooseq. We check the lengths to see which one to + discard. */ + if (inseg.len > next->len) { + /* The incoming segment is larger than the old + segment. We replace some segments with the new + one. */ + struct tcp_seg *cseg = tcp_seg_copy(&inseg); + if (cseg != NULL) { + if (prev != NULL) { + prev->next = cseg; + } else { + pcb->ooseq = cseg; + } + tcp_oos_insert_segment(cseg, next); + } + break; + } else { + /* Either the lengths are the same or the incoming + segment was smaller than the old one; in either + case, we ditch the incoming segment. */ + break; + } + } else { + if (prev == NULL) { + if (TCP_SEQ_LT(seqno, next->tcphdr->seqno)) { + /* The sequence number of the incoming segment is lower + than the sequence number of the first segment on the + queue. We put the incoming segment first on the + queue. */ + struct tcp_seg *cseg = tcp_seg_copy(&inseg); + if (cseg != NULL) { + pcb->ooseq = cseg; + tcp_oos_insert_segment(cseg, next); + } + break; + } + } else { + /*if (TCP_SEQ_LT(prev->tcphdr->seqno, seqno) && + TCP_SEQ_LT(seqno, next->tcphdr->seqno)) {*/ + if (TCP_SEQ_BETWEEN(seqno, prev->tcphdr->seqno + 1, next->tcphdr->seqno - 1)) { + /* The sequence number of the incoming segment is in + between the sequence numbers of the previous and + the next segment on ->ooseq. We trim trim the previous + segment, delete next segments that included in received segment + and trim received, if needed. */ + struct tcp_seg *cseg = tcp_seg_copy(&inseg); + if (cseg != NULL) { + if (TCP_SEQ_GT(prev->tcphdr->seqno + prev->len, seqno)) { + /* We need to trim the prev segment. */ + prev->len = (u16_t)(seqno - prev->tcphdr->seqno); + pbuf_realloc(prev->p, prev->len); + } + prev->next = cseg; + tcp_oos_insert_segment(cseg, next); + } + break; + } + } + +#if LWIP_TCP_SACK_OUT + /* The new segment goes after the 'next' one. If there is a "hole" in sequence numbers + between 'prev' and the beginning of 'next', we want to move sackbeg. */ + if (prev != NULL && prev->tcphdr->seqno + prev->len != next->tcphdr->seqno) { + sackbeg = next->tcphdr->seqno; + } +#endif /* LWIP_TCP_SACK_OUT */ + + /* We don't use 'prev' below, so let's set it to current 'next'. + This way even if we break the loop below, 'prev' will be pointing + at the segment right in front of the newly added one. */ + prev = next; + + /* If the "next" segment is the last segment on the + ooseq queue, we add the incoming segment to the end + of the list. */ + if (next->next == NULL && + TCP_SEQ_GT(seqno, next->tcphdr->seqno)) { + if (TCPH_FLAGS(next->tcphdr) & TCP_FIN) { + /* segment "next" already contains all data */ + break; + } + next->next = tcp_seg_copy(&inseg); + if (next->next != NULL) { + if (TCP_SEQ_GT(next->tcphdr->seqno + next->len, seqno)) { + /* We need to trim the last segment. */ + next->len = (u16_t)(seqno - next->tcphdr->seqno); + pbuf_realloc(next->p, next->len); + } + /* check if the remote side overruns our receive window */ + if (TCP_SEQ_GT((u32_t)tcplen + seqno, pcb->rcv_nxt + (u32_t)pcb->rcv_wnd)) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, + ("tcp_receive: other end overran receive window" + "seqno %"U32_F" len %"U16_F" right edge %"U32_F"\n", + seqno, tcplen, pcb->rcv_nxt + pcb->rcv_wnd)); + if (TCPH_FLAGS(next->next->tcphdr) & TCP_FIN) { + /* Must remove the FIN from the header as we're trimming + * that byte of sequence-space from the packet */ + TCPH_FLAGS_SET(next->next->tcphdr, TCPH_FLAGS(next->next->tcphdr) & ~TCP_FIN); + } + /* Adjust length of segment to fit in the window. */ + next->next->len = (u16_t)(pcb->rcv_nxt + pcb->rcv_wnd - seqno); + pbuf_realloc(next->next->p, next->next->len); + tcplen = TCP_TCPLEN(next->next); + LWIP_ASSERT("tcp_receive: segment not trimmed correctly to rcv_wnd", + (seqno + tcplen) == (pcb->rcv_nxt + pcb->rcv_wnd)); + } + } + break; + } + } + } + +#if LWIP_TCP_SACK_OUT + if (pcb->flags & TF_SACK) { + if (prev == NULL) { + /* The new segment is at the beginning. sackbeg should already be set properly. + We need to find the right edge. */ + next = pcb->ooseq; + } else if (prev->next != NULL) { + /* The new segment was added after 'prev'. If there is a "hole" between 'prev' and 'prev->next', + we need to move sackbeg. After that we should find the right edge. */ + next = prev->next; + if (prev->tcphdr->seqno + prev->len != next->tcphdr->seqno) { + sackbeg = next->tcphdr->seqno; + } + } else { + next = NULL; + } + if (next != NULL) { + u32_t sackend = next->tcphdr->seqno; + for ( ; (next != NULL) && (sackend == next->tcphdr->seqno); next = next->next) { + sackend += next->len; + } + tcp_add_sack(pcb, sackbeg, sackend); + } + } +#endif /* LWIP_TCP_SACK_OUT */ + } +#if defined(TCP_OOSEQ_BYTES_LIMIT) || defined(TCP_OOSEQ_PBUFS_LIMIT) + { + /* Check that the data on ooseq doesn't exceed one of the limits + and throw away everything above that limit. */ +#ifdef TCP_OOSEQ_BYTES_LIMIT + const u32_t ooseq_max_blen = TCP_OOSEQ_BYTES_LIMIT(pcb); + u32_t ooseq_blen = 0; +#endif +#ifdef TCP_OOSEQ_PBUFS_LIMIT + const u16_t ooseq_max_qlen = TCP_OOSEQ_PBUFS_LIMIT(pcb); + u16_t ooseq_qlen = 0; +#endif + struct tcp_seg *next, *prev = NULL; + for (next = pcb->ooseq; next != NULL; prev = next, next = next->next) { + struct pbuf *p = next->p; + int stop_here = 0; +#ifdef TCP_OOSEQ_BYTES_LIMIT + ooseq_blen += p->tot_len; + if (ooseq_blen > ooseq_max_blen) { + stop_here = 1; + } +#endif +#ifdef TCP_OOSEQ_PBUFS_LIMIT + ooseq_qlen += pbuf_clen(p); + if (ooseq_qlen > ooseq_max_qlen) { + stop_here = 1; + } +#endif + if (stop_here) { +#if LWIP_TCP_SACK_OUT + if (pcb->flags & TF_SACK) { + /* Let's remove all SACKs from next's seqno up. */ + tcp_remove_sacks_gt(pcb, next->tcphdr->seqno); + } +#endif /* LWIP_TCP_SACK_OUT */ + /* too much ooseq data, dump this and everything after it */ + tcp_segs_free(next); + if (prev == NULL) { + /* first ooseq segment is too much, dump the whole queue */ + pcb->ooseq = NULL; + } else { + /* just dump 'next' and everything after it */ + prev->next = NULL; + } + break; + } + } + } +#endif /* TCP_OOSEQ_BYTES_LIMIT || TCP_OOSEQ_PBUFS_LIMIT */ +#endif /* TCP_QUEUE_OOSEQ */ + + /* We send the ACK packet after we've (potentially) dealt with SACKs, + so they can be included in the acknowledgment. */ + tcp_send_empty_ack(pcb); + } + } else { + /* The incoming segment is not within the window. */ + tcp_send_empty_ack(pcb); + } + } else { + /* Segments with length 0 is taken care of here. Segments that + fall out of the window are ACKed. */ + if (!TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, pcb->rcv_nxt + pcb->rcv_wnd - 1)) { + tcp_ack_now(pcb); + } + } +} + +static u8_t +tcp_get_next_optbyte(void) +{ + u16_t optidx = tcp_optidx++; + if ((tcphdr_opt2 == NULL) || (optidx < tcphdr_opt1len)) { + u8_t *opts = (u8_t *)tcphdr + TCP_HLEN; + return opts[optidx]; + } else { + u8_t idx = (u8_t)(optidx - tcphdr_opt1len); + return tcphdr_opt2[idx]; + } +} + +/** + * Parses the options contained in the incoming segment. + * + * Called from tcp_listen_input() and tcp_process(). + * Currently, only the MSS option is supported! + * + * @param pcb the tcp_pcb for which a segment arrived + */ +static void +tcp_parseopt(struct tcp_pcb *pcb) +{ + u8_t data; + u16_t mss; +#if LWIP_TCP_TIMESTAMPS + u32_t tsval; +#endif + + LWIP_ASSERT("tcp_parseopt: invalid pcb", pcb != NULL); + + /* Parse the TCP MSS option, if present. */ + if (tcphdr_optlen != 0) { + for (tcp_optidx = 0; tcp_optidx < tcphdr_optlen; ) { + u8_t opt = tcp_get_next_optbyte(); + switch (opt) { + case LWIP_TCP_OPT_EOL: + /* End of options. */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: EOL\n")); + return; + case LWIP_TCP_OPT_NOP: + /* NOP option. */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: NOP\n")); + break; + case LWIP_TCP_OPT_MSS: + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: MSS\n")); + if (tcp_get_next_optbyte() != LWIP_TCP_OPT_LEN_MSS || (tcp_optidx - 2 + LWIP_TCP_OPT_LEN_MSS) > tcphdr_optlen) { + /* Bad length */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); + return; + } + /* An MSS option with the right option length. */ + mss = (u16_t)(tcp_get_next_optbyte() << 8); + mss |= tcp_get_next_optbyte(); + /* Limit the mss to the configured TCP_MSS and prevent division by zero */ + pcb->mss = ((mss > TCP_MSS) || (mss == 0)) ? TCP_MSS : mss; + break; +#if LWIP_WND_SCALE + case LWIP_TCP_OPT_WS: + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: WND_SCALE\n")); + if (tcp_get_next_optbyte() != LWIP_TCP_OPT_LEN_WS || (tcp_optidx - 2 + LWIP_TCP_OPT_LEN_WS) > tcphdr_optlen) { + /* Bad length */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); + return; + } + /* An WND_SCALE option with the right option length. */ + data = tcp_get_next_optbyte(); + /* If syn was received with wnd scale option, + activate wnd scale opt, but only if this is not a retransmission */ + if ((flags & TCP_SYN) && !(pcb->flags & TF_WND_SCALE)) { + pcb->snd_scale = data; + if (pcb->snd_scale > 14U) { + pcb->snd_scale = 14U; + } + pcb->rcv_scale = TCP_RCV_SCALE; + tcp_set_flags(pcb, TF_WND_SCALE); + /* window scaling is enabled, we can use the full receive window */ + LWIP_ASSERT("window not at default value", pcb->rcv_wnd == TCPWND_MIN16(TCP_WND)); + LWIP_ASSERT("window not at default value", pcb->rcv_ann_wnd == TCPWND_MIN16(TCP_WND)); + pcb->rcv_wnd = pcb->rcv_ann_wnd = TCP_WND; + } + break; +#endif /* LWIP_WND_SCALE */ +#if LWIP_TCP_TIMESTAMPS + case LWIP_TCP_OPT_TS: + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: TS\n")); + if (tcp_get_next_optbyte() != LWIP_TCP_OPT_LEN_TS || (tcp_optidx - 2 + LWIP_TCP_OPT_LEN_TS) > tcphdr_optlen) { + /* Bad length */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); + return; + } + /* TCP timestamp option with valid length */ + tsval = tcp_get_next_optbyte(); + tsval |= (tcp_get_next_optbyte() << 8); + tsval |= (tcp_get_next_optbyte() << 16); + tsval |= (tcp_get_next_optbyte() << 24); + if (flags & TCP_SYN) { + pcb->ts_recent = lwip_ntohl(tsval); + /* Enable sending timestamps in every segment now that we know + the remote host supports it. */ + tcp_set_flags(pcb, TF_TIMESTAMP); + } else if (TCP_SEQ_BETWEEN(pcb->ts_lastacksent, seqno, seqno + tcplen)) { + pcb->ts_recent = lwip_ntohl(tsval); + } + /* Advance to next option (6 bytes already read) */ + tcp_optidx += LWIP_TCP_OPT_LEN_TS - 6; + break; +#endif /* LWIP_TCP_TIMESTAMPS */ +#if LWIP_TCP_SACK_OUT + case LWIP_TCP_OPT_SACK_PERM: + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: SACK_PERM\n")); + if (tcp_get_next_optbyte() != LWIP_TCP_OPT_LEN_SACK_PERM || (tcp_optidx - 2 + LWIP_TCP_OPT_LEN_SACK_PERM) > tcphdr_optlen) { + /* Bad length */ + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); + return; + } + /* TCP SACK_PERM option with valid length */ + if (flags & TCP_SYN) { + /* We only set it if we receive it in a SYN (or SYN+ACK) packet */ + tcp_set_flags(pcb, TF_SACK); + } + break; +#endif /* LWIP_TCP_SACK_OUT */ + default: + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: other\n")); + data = tcp_get_next_optbyte(); + if (data < 2) { + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); + /* If the length field is zero, the options are malformed + and we don't process them further. */ + return; + } + /* All other options have a length field, so that we easily + can skip past them. */ + tcp_optidx += data - 2; + } + } + } +} + +void +tcp_trigger_input_pcb_close(void) +{ + recv_flags |= TF_CLOSED; +} + +#if LWIP_TCP_SACK_OUT +/** + * Called by tcp_receive() to add new SACK entry. + * + * The new SACK entry will be placed at the beginning of rcv_sacks[], as the newest one. + * Existing SACK entries will be "pushed back", to preserve their order. + * This is the behavior described in RFC 2018, section 4. + * + * @param pcb the tcp_pcb for which a segment arrived + * @param left the left side of the SACK (the first sequence number) + * @param right the right side of the SACK (the first sequence number past this SACK) + */ +static void +tcp_add_sack(struct tcp_pcb *pcb, u32_t left, u32_t right) +{ + u8_t i; + u8_t unused_idx; + + if ((pcb->flags & TF_SACK) == 0 || !TCP_SEQ_LT(left, right)) { + return; + } + + /* First, let's remove all SACKs that are no longer needed (because they overlap with the newest one), + while moving all other SACKs forward. + We run this loop for all entries, until we find the first invalid one. + There is no point checking after that. */ + for (i = unused_idx = 0; (i < LWIP_TCP_MAX_SACK_NUM) && LWIP_TCP_SACK_VALID(pcb, i); ++i) { + /* We only want to use SACK at [i] if it doesn't overlap with left:right range. + It does not overlap if its right side is before the newly added SACK, + or if its left side is after the newly added SACK. + NOTE: The equality should not really happen, but it doesn't hurt. */ + if (TCP_SEQ_LEQ(pcb->rcv_sacks[i].right, left) || TCP_SEQ_LEQ(right, pcb->rcv_sacks[i].left)) { + if (unused_idx != i) { + /* We don't need to copy if it's already in the right spot */ + pcb->rcv_sacks[unused_idx] = pcb->rcv_sacks[i]; + } + ++unused_idx; + } + } + + /* Now 'unused_idx' is the index of the first invalid SACK entry, + anywhere between 0 (no valid entries) and LWIP_TCP_MAX_SACK_NUM (all entries are valid). + We want to clear this and all following SACKs. + However, we will be adding another one in the front (and shifting everything else back). + So let's just iterate from the back, and set each entry to the one to the left if it's valid, + or to 0 if it is not. */ + for (i = LWIP_TCP_MAX_SACK_NUM - 1; i > 0; --i) { + /* [i] is the index we are setting, and the value should be at index [i-1], + or 0 if that index is unused (>= unused_idx). */ + if (i - 1 >= unused_idx) { + /* [i-1] is unused. Let's clear [i]. */ + pcb->rcv_sacks[i].left = pcb->rcv_sacks[i].right = 0; + } else { + pcb->rcv_sacks[i] = pcb->rcv_sacks[i - 1]; + } + } + + /* And now we can store the newest SACK */ + pcb->rcv_sacks[0].left = left; + pcb->rcv_sacks[0].right = right; +} + +/** + * Called to remove a range of SACKs. + * + * SACK entries will be removed or adjusted to not acknowledge any sequence + * numbers that are less than 'seq' passed. It not only invalidates entries, + * but also moves all entries that are still valid to the beginning. + * + * @param pcb the tcp_pcb to modify + * @param seq the lowest sequence number to keep in SACK entries + */ +static void +tcp_remove_sacks_lt(struct tcp_pcb *pcb, u32_t seq) +{ + u8_t i; + u8_t unused_idx; + + /* We run this loop for all entries, until we find the first invalid one. + There is no point checking after that. */ + for (i = unused_idx = 0; (i < LWIP_TCP_MAX_SACK_NUM) && LWIP_TCP_SACK_VALID(pcb, i); ++i) { + /* We only want to use SACK at index [i] if its right side is > 'seq'. */ + if (TCP_SEQ_GT(pcb->rcv_sacks[i].right, seq)) { + if (unused_idx != i) { + /* We only copy it if it's not in the right spot already. */ + pcb->rcv_sacks[unused_idx] = pcb->rcv_sacks[i]; + } + /* NOTE: It is possible that its left side is < 'seq', in which case we should adjust it. */ + if (TCP_SEQ_LT(pcb->rcv_sacks[unused_idx].left, seq)) { + pcb->rcv_sacks[unused_idx].left = seq; + } + ++unused_idx; + } + } + + /* We also need to invalidate everything from 'unused_idx' till the end */ + for (i = unused_idx; i < LWIP_TCP_MAX_SACK_NUM; ++i) { + pcb->rcv_sacks[i].left = pcb->rcv_sacks[i].right = 0; + } +} + +#if defined(TCP_OOSEQ_BYTES_LIMIT) || defined(TCP_OOSEQ_PBUFS_LIMIT) +/** + * Called to remove a range of SACKs. + * + * SACK entries will be removed or adjusted to not acknowledge any sequence + * numbers that are greater than (or equal to) 'seq' passed. It not only invalidates entries, + * but also moves all entries that are still valid to the beginning. + * + * @param pcb the tcp_pcb to modify + * @param seq the highest sequence number to keep in SACK entries + */ +static void +tcp_remove_sacks_gt(struct tcp_pcb *pcb, u32_t seq) +{ + u8_t i; + u8_t unused_idx; + + /* We run this loop for all entries, until we find the first invalid one. + There is no point checking after that. */ + for (i = unused_idx = 0; (i < LWIP_TCP_MAX_SACK_NUM) && LWIP_TCP_SACK_VALID(pcb, i); ++i) { + /* We only want to use SACK at index [i] if its left side is < 'seq'. */ + if (TCP_SEQ_LT(pcb->rcv_sacks[i].left, seq)) { + if (unused_idx != i) { + /* We only copy it if it's not in the right spot already. */ + pcb->rcv_sacks[unused_idx] = pcb->rcv_sacks[i]; + } + /* NOTE: It is possible that its right side is > 'seq', in which case we should adjust it. */ + if (TCP_SEQ_GT(pcb->rcv_sacks[unused_idx].right, seq)) { + pcb->rcv_sacks[unused_idx].right = seq; + } + ++unused_idx; + } + } + + /* We also need to invalidate everything from 'unused_idx' till the end */ + for (i = unused_idx; i < LWIP_TCP_MAX_SACK_NUM; ++i) { + pcb->rcv_sacks[i].left = pcb->rcv_sacks[i].right = 0; + } +} +#endif /* TCP_OOSEQ_BYTES_LIMIT || TCP_OOSEQ_PBUFS_LIMIT */ + +#endif /* LWIP_TCP_SACK_OUT */ + +#endif /* LWIP_TCP */ diff --git a/middleware/lwip/src/core/tcp_out.c b/middleware/lwip/src/core/tcp_out.c new file mode 100644 index 0000000..d9d1b57 --- /dev/null +++ b/middleware/lwip/src/core/tcp_out.c @@ -0,0 +1,2191 @@ +/** + * @file + * Transmission Control Protocol, outgoing traffic + * + * The output functions of TCP. + * + * There are two distinct ways for TCP segments to get sent: + * - queued data: these are segments transferring data or segments containing + * SYN or FIN (which both count as one sequence number). They are created as + * struct @ref pbuf together with a struct tcp_seg and enqueue to the + * unsent list of the pcb. They are sent by tcp_output: + * - @ref tcp_write : creates data segments + * - @ref tcp_split_unsent_seg : splits a data segment + * - @ref tcp_enqueue_flags : creates SYN-only or FIN-only segments + * - @ref tcp_output / tcp_output_segment : finalize the tcp header + * (e.g. sequence numbers, options, checksum) and output to IP + * - the various tcp_rexmit functions shuffle around segments between the + * unsent an unacked lists to retransmit them + * - tcp_create_segment and tcp_pbuf_prealloc allocate pbuf and + * segment for these functions + * - direct send: these segments don't contain data but control the connection + * behaviour. They are created as pbuf only and sent directly without + * enqueueing them: + * - @ref tcp_send_empty_ack sends an ACK-only segment + * - @ref tcp_rst sends a RST segment + * - @ref tcp_keepalive sends a keepalive segment + * - @ref tcp_zero_window_probe sends a window probe segment + * - tcp_output_alloc_header allocates a header-only pbuf for these functions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#include "lwip/opt.h" + +#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/priv/tcp_priv.h" +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/memp.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/inet_chksum.h" +#include "lwip/stats.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#if LWIP_TCP_TIMESTAMPS +#include "lwip/sys.h" +#endif + +#include + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif + +/* Allow to add custom TCP header options by defining this hook */ +#ifdef LWIP_HOOK_TCP_OUT_TCPOPT_LENGTH +#define LWIP_TCP_OPT_LENGTH_SEGMENT(flags, pcb) LWIP_HOOK_TCP_OUT_TCPOPT_LENGTH(pcb, LWIP_TCP_OPT_LENGTH(flags)) +#else +#define LWIP_TCP_OPT_LENGTH_SEGMENT(flags, pcb) LWIP_TCP_OPT_LENGTH(flags) +#endif + +/* Define some copy-macros for checksum-on-copy so that the code looks + nicer by preventing too many ifdef's. */ +#if TCP_CHECKSUM_ON_COPY +#define TCP_DATA_COPY(dst, src, len, seg) do { \ + tcp_seg_add_chksum(LWIP_CHKSUM_COPY(dst, src, len), \ + len, &seg->chksum, &seg->chksum_swapped); \ + seg->flags |= TF_SEG_DATA_CHECKSUMMED; } while(0) +#define TCP_DATA_COPY2(dst, src, len, chksum, chksum_swapped) \ + tcp_seg_add_chksum(LWIP_CHKSUM_COPY(dst, src, len), len, chksum, chksum_swapped); +#else /* TCP_CHECKSUM_ON_COPY*/ +#define TCP_DATA_COPY(dst, src, len, seg) MEMCPY(dst, src, len) +#define TCP_DATA_COPY2(dst, src, len, chksum, chksum_swapped) MEMCPY(dst, src, len) +#endif /* TCP_CHECKSUM_ON_COPY*/ + +/** Define this to 1 for an extra check that the output checksum is valid + * (useful when the checksum is generated by the application, not the stack) */ +#ifndef TCP_CHECKSUM_ON_COPY_SANITY_CHECK +#define TCP_CHECKSUM_ON_COPY_SANITY_CHECK 0 +#endif +/* Allow to override the failure of sanity check from warning to e.g. hard failure */ +#if TCP_CHECKSUM_ON_COPY_SANITY_CHECK +#ifndef TCP_CHECKSUM_ON_COPY_SANITY_CHECK_FAIL +#define TCP_CHECKSUM_ON_COPY_SANITY_CHECK_FAIL(msg) LWIP_DEBUGF(TCP_DEBUG | LWIP_DBG_LEVEL_WARNING, msg) +#endif +#endif + +#if TCP_OVERSIZE +/** The size of segment pbufs created when TCP_OVERSIZE is enabled */ +#ifndef TCP_OVERSIZE_CALC_LENGTH +#define TCP_OVERSIZE_CALC_LENGTH(length) ((length) + TCP_OVERSIZE) +#endif +#endif + +/* Forward declarations.*/ +static err_t tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb, struct netif *netif); + +/* tcp_route: common code that returns a fixed bound netif or calls ip_route */ +static struct netif * +tcp_route(const struct tcp_pcb *pcb, const ip_addr_t *src, const ip_addr_t *dst) +{ + LWIP_UNUSED_ARG(src); /* in case IPv4-only and source-based routing is disabled */ + + if ((pcb != NULL) && (pcb->netif_idx != NETIF_NO_INDEX)) { + return netif_get_by_index(pcb->netif_idx); + } else { + return ip_route(src, dst); + } +} + +/** + * Create a TCP segment with prefilled header. + * + * Called by @ref tcp_write, @ref tcp_enqueue_flags and @ref tcp_split_unsent_seg + * + * @param pcb Protocol control block for the TCP connection. + * @param p pbuf that is used to hold the TCP header. + * @param hdrflags TCP flags for header. + * @param seqno TCP sequence number of this packet + * @param optflags options to include in TCP header + * @return a new tcp_seg pointing to p, or NULL. + * The TCP header is filled in except ackno and wnd. + * p is freed on failure. + */ +static struct tcp_seg * +tcp_create_segment(const struct tcp_pcb *pcb, struct pbuf *p, u8_t hdrflags, u32_t seqno, u8_t optflags) +{ + struct tcp_seg *seg; + u8_t optlen; + + LWIP_ASSERT("tcp_create_segment: invalid pcb", pcb != NULL); + LWIP_ASSERT("tcp_create_segment: invalid pbuf", p != NULL); + + optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(optflags, pcb); + + if ((seg = (struct tcp_seg *)memp_malloc(MEMP_TCP_SEG)) == NULL) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_create_segment: no memory.\n")); + pbuf_free(p); + return NULL; + } + seg->flags = optflags; + seg->next = NULL; + seg->p = p; + LWIP_ASSERT("p->tot_len >= optlen", p->tot_len >= optlen); + seg->len = p->tot_len - optlen; +#if TCP_OVERSIZE_DBGCHECK + seg->oversize_left = 0; +#endif /* TCP_OVERSIZE_DBGCHECK */ +#if TCP_CHECKSUM_ON_COPY + seg->chksum = 0; + seg->chksum_swapped = 0; + /* check optflags */ + LWIP_ASSERT("invalid optflags passed: TF_SEG_DATA_CHECKSUMMED", + (optflags & TF_SEG_DATA_CHECKSUMMED) == 0); +#endif /* TCP_CHECKSUM_ON_COPY */ + + /* build TCP header */ + if (pbuf_add_header(p, TCP_HLEN)) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_create_segment: no room for TCP header in pbuf.\n")); + TCP_STATS_INC(tcp.err); + tcp_seg_free(seg); + return NULL; + } + seg->tcphdr = (struct tcp_hdr *)seg->p->payload; + seg->tcphdr->src = lwip_htons(pcb->local_port); + seg->tcphdr->dest = lwip_htons(pcb->remote_port); + seg->tcphdr->seqno = lwip_htonl(seqno); + /* ackno is set in tcp_output */ + TCPH_HDRLEN_FLAGS_SET(seg->tcphdr, (5 + optlen / 4), hdrflags); + /* wnd and chksum are set in tcp_output */ + seg->tcphdr->urgp = 0; + return seg; +} + +/** + * Allocate a PBUF_RAM pbuf, perhaps with extra space at the end. + * + * This function is like pbuf_alloc(layer, length, PBUF_RAM) except + * there may be extra bytes available at the end. + * + * Called by @ref tcp_write + * + * @param layer flag to define header size. + * @param length size of the pbuf's payload. + * @param max_length maximum usable size of payload+oversize. + * @param oversize pointer to a u16_t that will receive the number of usable tail bytes. + * @param pcb The TCP connection that will enqueue the pbuf. + * @param apiflags API flags given to tcp_write. + * @param first_seg true when this pbuf will be used in the first enqueued segment. + */ +#if TCP_OVERSIZE +static struct pbuf * +tcp_pbuf_prealloc(pbuf_layer layer, u16_t length, u16_t max_length, + u16_t *oversize, const struct tcp_pcb *pcb, u8_t apiflags, + u8_t first_seg) +{ + struct pbuf *p; + u16_t alloc = length; + + LWIP_ASSERT("tcp_pbuf_prealloc: invalid oversize", oversize != NULL); + LWIP_ASSERT("tcp_pbuf_prealloc: invalid pcb", pcb != NULL); + +#if LWIP_NETIF_TX_SINGLE_PBUF + LWIP_UNUSED_ARG(max_length); + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(apiflags); + LWIP_UNUSED_ARG(first_seg); + alloc = max_length; +#else /* LWIP_NETIF_TX_SINGLE_PBUF */ + if (length < max_length) { + /* Should we allocate an oversized pbuf, or just the minimum + * length required? If tcp_write is going to be called again + * before this segment is transmitted, we want the oversized + * buffer. If the segment will be transmitted immediately, we can + * save memory by allocating only length. We use a simple + * heuristic based on the following information: + * + * Did the user set TCP_WRITE_FLAG_MORE? + * + * Will the Nagle algorithm defer transmission of this segment? + */ + if ((apiflags & TCP_WRITE_FLAG_MORE) || + (!(pcb->flags & TF_NODELAY) && + (!first_seg || + pcb->unsent != NULL || + pcb->unacked != NULL))) { + alloc = LWIP_MIN(max_length, LWIP_MEM_ALIGN_SIZE(TCP_OVERSIZE_CALC_LENGTH(length))); + } + } +#endif /* LWIP_NETIF_TX_SINGLE_PBUF */ + p = pbuf_alloc(layer, alloc, PBUF_RAM); + if (p == NULL) { + return NULL; + } + LWIP_ASSERT("need unchained pbuf", p->next == NULL); + *oversize = p->len - length; + /* trim p->len to the currently used size */ + p->len = p->tot_len = length; + return p; +} +#else /* TCP_OVERSIZE */ +#define tcp_pbuf_prealloc(layer, length, mx, os, pcb, api, fst) pbuf_alloc((layer), (length), PBUF_RAM) +#endif /* TCP_OVERSIZE */ + +#if TCP_CHECKSUM_ON_COPY +/** Add a checksum of newly added data to the segment. + * + * Called by tcp_write and tcp_split_unsent_seg. + */ +static void +tcp_seg_add_chksum(u16_t chksum, u16_t len, u16_t *seg_chksum, + u8_t *seg_chksum_swapped) +{ + u32_t helper; + /* add chksum to old chksum and fold to u16_t */ + helper = chksum + *seg_chksum; + chksum = FOLD_U32T(helper); + if ((len & 1) != 0) { + *seg_chksum_swapped = 1 - *seg_chksum_swapped; + chksum = SWAP_BYTES_IN_WORD(chksum); + } + *seg_chksum = chksum; +} +#endif /* TCP_CHECKSUM_ON_COPY */ + +/** Checks if tcp_write is allowed or not (checks state, snd_buf and snd_queuelen). + * + * @param pcb the tcp pcb to check for + * @param len length of data to send (checked agains snd_buf) + * @return ERR_OK if tcp_write is allowed to proceed, another err_t otherwise + */ +static err_t +tcp_write_checks(struct tcp_pcb *pcb, u16_t len) +{ + LWIP_ASSERT("tcp_write_checks: invalid pcb", pcb != NULL); + + /* connection is in invalid state for data transmission? */ + if ((pcb->state != ESTABLISHED) && + (pcb->state != CLOSE_WAIT) && + (pcb->state != SYN_SENT) && + (pcb->state != SYN_RCVD)) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_STATE | LWIP_DBG_LEVEL_SEVERE, ("tcp_write() called in invalid state\n")); + return ERR_CONN; + } else if (len == 0) { + return ERR_OK; + } + + /* fail on too much data */ + if (len > pcb->snd_buf) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("tcp_write: too much data (len=%"U16_F" > snd_buf=%"TCPWNDSIZE_F")\n", + len, pcb->snd_buf)); + tcp_set_flags(pcb, TF_NAGLEMEMERR); + return ERR_MEM; + } + + LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_write: queuelen: %"TCPWNDSIZE_F"\n", (tcpwnd_size_t)pcb->snd_queuelen)); + + /* If total number of pbufs on the unsent/unacked queues exceeds the + * configured maximum, return an error */ + /* check for configured max queuelen and possible overflow */ + if (pcb->snd_queuelen >= LWIP_MIN(TCP_SND_QUEUELEN, (TCP_SNDQUEUELEN_OVERFLOW + 1))) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("tcp_write: too long queue %"U16_F" (max %"U16_F")\n", + pcb->snd_queuelen, (u16_t)TCP_SND_QUEUELEN)); + TCP_STATS_INC(tcp.memerr); + tcp_set_flags(pcb, TF_NAGLEMEMERR); + return ERR_MEM; + } + if (pcb->snd_queuelen != 0) { + LWIP_ASSERT("tcp_write: pbufs on queue => at least one queue non-empty", + pcb->unacked != NULL || pcb->unsent != NULL); + } else { + LWIP_ASSERT("tcp_write: no pbufs on queue => both queues empty", + pcb->unacked == NULL && pcb->unsent == NULL); + } + return ERR_OK; +} + +/** + * @ingroup tcp_raw + * Write data for sending (but does not send it immediately). + * + * It waits in the expectation of more data being sent soon (as + * it can send them more efficiently by combining them together). + * To prompt the system to send data now, call tcp_output() after + * calling tcp_write(). + * + * This function enqueues the data pointed to by the argument dataptr. The length of + * the data is passed as the len parameter. The apiflags can be one or more of: + * - TCP_WRITE_FLAG_COPY: indicates whether the new memory should be allocated + * for the data to be copied into. If this flag is not given, no new memory + * should be allocated and the data should only be referenced by pointer. This + * also means that the memory behind dataptr must not change until the data is + * ACKed by the remote host + * - TCP_WRITE_FLAG_MORE: indicates that more data follows. If this is omitted, + * the PSH flag is set in the last segment created by this call to tcp_write. + * If this flag is given, the PSH flag is not set. + * + * The tcp_write() function will fail and return ERR_MEM if the length + * of the data exceeds the current send buffer size or if the length of + * the queue of outgoing segment is larger than the upper limit defined + * in lwipopts.h. The number of bytes available in the output queue can + * be retrieved with the tcp_sndbuf() function. + * + * The proper way to use this function is to call the function with at + * most tcp_sndbuf() bytes of data. If the function returns ERR_MEM, + * the application should wait until some of the currently enqueued + * data has been successfully received by the other host and try again. + * + * @param pcb Protocol control block for the TCP connection to enqueue data for. + * @param arg Pointer to the data to be enqueued for sending. + * @param len Data length in bytes + * @param apiflags combination of following flags : + * - TCP_WRITE_FLAG_COPY (0x01) data will be copied into memory belonging to the stack + * - TCP_WRITE_FLAG_MORE (0x02) for TCP connection, PSH flag will not be set on last segment sent, + * @return ERR_OK if enqueued, another err_t on error + */ +err_t +tcp_write(struct tcp_pcb *pcb, const void *arg, u16_t len, u8_t apiflags) +{ + struct pbuf *concat_p = NULL; + struct tcp_seg *last_unsent = NULL, *seg = NULL, *prev_seg = NULL, *queue = NULL; + u16_t pos = 0; /* position in 'arg' data */ + u16_t queuelen; + u8_t optlen; + u8_t optflags = 0; +#if TCP_OVERSIZE + u16_t oversize = 0; + u16_t oversize_used = 0; +#if TCP_OVERSIZE_DBGCHECK + u16_t oversize_add = 0; +#endif /* TCP_OVERSIZE_DBGCHECK*/ +#endif /* TCP_OVERSIZE */ + u16_t extendlen = 0; +#if TCP_CHECKSUM_ON_COPY + u16_t concat_chksum = 0; + u8_t concat_chksum_swapped = 0; + u16_t concat_chksummed = 0; +#endif /* TCP_CHECKSUM_ON_COPY */ + err_t err; + u16_t mss_local; + + LWIP_ERROR("tcp_write: invalid pcb", pcb != NULL, return ERR_ARG); + + /* don't allocate segments bigger than half the maximum window we ever received */ + mss_local = LWIP_MIN(pcb->mss, TCPWND_MIN16(pcb->snd_wnd_max / 2)); + mss_local = mss_local ? mss_local : pcb->mss; + + LWIP_ASSERT_CORE_LOCKED(); + +#if LWIP_NETIF_TX_SINGLE_PBUF + /* Always copy to try to create single pbufs for TX */ + apiflags |= TCP_WRITE_FLAG_COPY; +#endif /* LWIP_NETIF_TX_SINGLE_PBUF */ + + LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_write(pcb=%p, data=%p, len=%"U16_F", apiflags=%"U16_F")\n", + (void *)pcb, arg, len, (u16_t)apiflags)); + LWIP_ERROR("tcp_write: arg == NULL (programmer violates API)", + arg != NULL, return ERR_ARG;); + + err = tcp_write_checks(pcb, len); + if (err != ERR_OK) { + return err; + } + queuelen = pcb->snd_queuelen; + +#if LWIP_TCP_TIMESTAMPS + if ((pcb->flags & TF_TIMESTAMP)) { + /* Make sure the timestamp option is only included in data segments if we + agreed about it with the remote host. */ + optflags = TF_SEG_OPTS_TS; + optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(TF_SEG_OPTS_TS, pcb); + /* ensure that segments can hold at least one data byte... */ + mss_local = LWIP_MAX(mss_local, LWIP_TCP_OPT_LEN_TS + 1); + } else +#endif /* LWIP_TCP_TIMESTAMPS */ + { + optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(0, pcb); + } + + + /* + * TCP segmentation is done in three phases with increasing complexity: + * + * 1. Copy data directly into an oversized pbuf. + * 2. Chain a new pbuf to the end of pcb->unsent. + * 3. Create new segments. + * + * We may run out of memory at any point. In that case we must + * return ERR_MEM and not change anything in pcb. Therefore, all + * changes are recorded in local variables and committed at the end + * of the function. Some pcb fields are maintained in local copies: + * + * queuelen = pcb->snd_queuelen + * oversize = pcb->unsent_oversize + * + * These variables are set consistently by the phases: + * + * seg points to the last segment tampered with. + * + * pos records progress as data is segmented. + */ + + /* Find the tail of the unsent queue. */ + if (pcb->unsent != NULL) { + u16_t space; + u16_t unsent_optlen; + + /* @todo: this could be sped up by keeping last_unsent in the pcb */ + for (last_unsent = pcb->unsent; last_unsent->next != NULL; + last_unsent = last_unsent->next); + + /* Usable space at the end of the last unsent segment */ + unsent_optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(last_unsent->flags, pcb); + LWIP_ASSERT("mss_local is too small", mss_local >= last_unsent->len + unsent_optlen); + space = mss_local - (last_unsent->len + unsent_optlen); + + /* + * Phase 1: Copy data directly into an oversized pbuf. + * + * The number of bytes copied is recorded in the oversize_used + * variable. The actual copying is done at the bottom of the + * function. + */ +#if TCP_OVERSIZE +#if TCP_OVERSIZE_DBGCHECK + /* check that pcb->unsent_oversize matches last_unsent->oversize_left */ + LWIP_ASSERT("unsent_oversize mismatch (pcb vs. last_unsent)", + pcb->unsent_oversize == last_unsent->oversize_left); +#endif /* TCP_OVERSIZE_DBGCHECK */ + oversize = pcb->unsent_oversize; + if (oversize > 0) { + LWIP_ASSERT("inconsistent oversize vs. space", oversize <= space); + seg = last_unsent; + oversize_used = LWIP_MIN(space, LWIP_MIN(oversize, len)); + pos += oversize_used; + oversize -= oversize_used; + space -= oversize_used; + } + /* now we are either finished or oversize is zero */ + LWIP_ASSERT("inconsistent oversize vs. len", (oversize == 0) || (pos == len)); +#endif /* TCP_OVERSIZE */ + +#if !LWIP_NETIF_TX_SINGLE_PBUF + /* + * Phase 2: Chain a new pbuf to the end of pcb->unsent. + * + * As an exception when NOT copying the data, if the given data buffer + * directly follows the last unsent data buffer in memory, extend the last + * ROM pbuf reference to the buffer, thus saving a ROM pbuf allocation. + * + * We don't extend segments containing SYN/FIN flags or options + * (len==0). The new pbuf is kept in concat_p and pbuf_cat'ed at + * the end. + * + * This phase is skipped for LWIP_NETIF_TX_SINGLE_PBUF as we could only execute + * it after rexmit puts a segment from unacked to unsent and at this point, + * oversize info is lost. + */ + if ((pos < len) && (space > 0) && (last_unsent->len > 0)) { + u16_t seglen = LWIP_MIN(space, len - pos); + seg = last_unsent; + + /* Create a pbuf with a copy or reference to seglen bytes. We + * can use PBUF_RAW here since the data appears in the middle of + * a segment. A header will never be prepended. */ + if (apiflags & TCP_WRITE_FLAG_COPY) { + /* Data is copied */ + if ((concat_p = tcp_pbuf_prealloc(PBUF_RAW, seglen, space, &oversize, pcb, apiflags, 1)) == NULL) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("tcp_write : could not allocate memory for pbuf copy size %"U16_F"\n", + seglen)); + goto memerr; + } +#if TCP_OVERSIZE_DBGCHECK + oversize_add = oversize; +#endif /* TCP_OVERSIZE_DBGCHECK */ + TCP_DATA_COPY2(concat_p->payload, (const u8_t *)arg + pos, seglen, &concat_chksum, &concat_chksum_swapped); +#if TCP_CHECKSUM_ON_COPY + concat_chksummed += seglen; +#endif /* TCP_CHECKSUM_ON_COPY */ + queuelen += pbuf_clen(concat_p); + } else { + /* Data is not copied */ + /* If the last unsent pbuf is of type PBUF_ROM, try to extend it. */ + struct pbuf *p; + for (p = last_unsent->p; p->next != NULL; p = p->next); + if (((p->type_internal & (PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS | PBUF_TYPE_FLAG_DATA_VOLATILE)) == 0) && + (const u8_t *)p->payload + p->len == (const u8_t *)arg) { + LWIP_ASSERT("tcp_write: ROM pbufs cannot be oversized", pos == 0); + extendlen = seglen; + } else { + if ((concat_p = pbuf_alloc(PBUF_RAW, seglen, PBUF_ROM)) == NULL) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("tcp_write: could not allocate memory for zero-copy pbuf\n")); + goto memerr; + } + /* reference the non-volatile payload data */ + ((struct pbuf_rom *)concat_p)->payload = (const u8_t *)arg + pos; + queuelen += pbuf_clen(concat_p); + } +#if TCP_CHECKSUM_ON_COPY + /* calculate the checksum of nocopy-data */ + tcp_seg_add_chksum(~inet_chksum((const u8_t *)arg + pos, seglen), seglen, + &concat_chksum, &concat_chksum_swapped); + concat_chksummed += seglen; +#endif /* TCP_CHECKSUM_ON_COPY */ + } + + pos += seglen; + } +#endif /* !LWIP_NETIF_TX_SINGLE_PBUF */ + } else { +#if TCP_OVERSIZE + LWIP_ASSERT("unsent_oversize mismatch (pcb->unsent is NULL)", + pcb->unsent_oversize == 0); +#endif /* TCP_OVERSIZE */ + } + + /* + * Phase 3: Create new segments. + * + * The new segments are chained together in the local 'queue' + * variable, ready to be appended to pcb->unsent. + */ + while (pos < len) { + struct pbuf *p; + u16_t left = len - pos; + u16_t max_len = mss_local - optlen; + u16_t seglen = LWIP_MIN(left, max_len); +#if TCP_CHECKSUM_ON_COPY + u16_t chksum = 0; + u8_t chksum_swapped = 0; +#endif /* TCP_CHECKSUM_ON_COPY */ + + if (apiflags & TCP_WRITE_FLAG_COPY) { + /* If copy is set, memory should be allocated and data copied + * into pbuf */ + if ((p = tcp_pbuf_prealloc(PBUF_TRANSPORT, seglen + optlen, mss_local, &oversize, pcb, apiflags, queue == NULL)) == NULL) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_write : could not allocate memory for pbuf copy size %"U16_F"\n", seglen)); + goto memerr; + } + LWIP_ASSERT("tcp_write: check that first pbuf can hold the complete seglen", + (p->len >= seglen)); + TCP_DATA_COPY2((char *)p->payload + optlen, (const u8_t *)arg + pos, seglen, &chksum, &chksum_swapped); + } else { + /* Copy is not set: First allocate a pbuf for holding the data. + * Since the referenced data is available at least until it is + * sent out on the link (as it has to be ACKed by the remote + * party) we can safely use PBUF_ROM instead of PBUF_REF here. + */ + struct pbuf *p2; +#if TCP_OVERSIZE + LWIP_ASSERT("oversize == 0", oversize == 0); +#endif /* TCP_OVERSIZE */ + if ((p2 = pbuf_alloc(PBUF_TRANSPORT, seglen, PBUF_ROM)) == NULL) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_write: could not allocate memory for zero-copy pbuf\n")); + goto memerr; + } +#if TCP_CHECKSUM_ON_COPY + /* calculate the checksum of nocopy-data */ + chksum = ~inet_chksum((const u8_t *)arg + pos, seglen); + if (seglen & 1) { + chksum_swapped = 1; + chksum = SWAP_BYTES_IN_WORD(chksum); + } +#endif /* TCP_CHECKSUM_ON_COPY */ + /* reference the non-volatile payload data */ + ((struct pbuf_rom *)p2)->payload = (const u8_t *)arg + pos; + + /* Second, allocate a pbuf for the headers. */ + if ((p = pbuf_alloc(PBUF_TRANSPORT, optlen, PBUF_RAM)) == NULL) { + /* If allocation fails, we have to deallocate the data pbuf as + * well. */ + pbuf_free(p2); + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_write: could not allocate memory for header pbuf\n")); + goto memerr; + } + /* Concatenate the headers and data pbufs together. */ + pbuf_cat(p/*header*/, p2/*data*/); + } + + queuelen += pbuf_clen(p); + + /* Now that there are more segments queued, we check again if the + * length of the queue exceeds the configured maximum or + * overflows. */ + if (queuelen > LWIP_MIN(TCP_SND_QUEUELEN, TCP_SNDQUEUELEN_OVERFLOW)) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_write: queue too long %"U16_F" (%d)\n", + queuelen, (int)TCP_SND_QUEUELEN)); + pbuf_free(p); + goto memerr; + } + + if ((seg = tcp_create_segment(pcb, p, 0, pcb->snd_lbb + pos, optflags)) == NULL) { + goto memerr; + } +#if TCP_OVERSIZE_DBGCHECK + seg->oversize_left = oversize; +#endif /* TCP_OVERSIZE_DBGCHECK */ +#if TCP_CHECKSUM_ON_COPY + seg->chksum = chksum; + seg->chksum_swapped = chksum_swapped; + seg->flags |= TF_SEG_DATA_CHECKSUMMED; +#endif /* TCP_CHECKSUM_ON_COPY */ + + /* first segment of to-be-queued data? */ + if (queue == NULL) { + queue = seg; + } else { + /* Attach the segment to the end of the queued segments */ + LWIP_ASSERT("prev_seg != NULL", prev_seg != NULL); + prev_seg->next = seg; + } + /* remember last segment of to-be-queued data for next iteration */ + prev_seg = seg; + + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_TRACE, ("tcp_write: queueing %"U32_F":%"U32_F"\n", + lwip_ntohl(seg->tcphdr->seqno), + lwip_ntohl(seg->tcphdr->seqno) + TCP_TCPLEN(seg))); + + pos += seglen; + } + + /* + * All three segmentation phases were successful. We can commit the + * transaction. + */ +#if TCP_OVERSIZE_DBGCHECK + if ((last_unsent != NULL) && (oversize_add != 0)) { + last_unsent->oversize_left += oversize_add; + } +#endif /* TCP_OVERSIZE_DBGCHECK */ + + /* + * Phase 1: If data has been added to the preallocated tail of + * last_unsent, we update the length fields of the pbuf chain. + */ +#if TCP_OVERSIZE + if (oversize_used > 0) { + struct pbuf *p; + /* Bump tot_len of whole chain, len of tail */ + for (p = last_unsent->p; p; p = p->next) { + p->tot_len += oversize_used; + if (p->next == NULL) { + TCP_DATA_COPY((char *)p->payload + p->len, arg, oversize_used, last_unsent); + p->len += oversize_used; + } + } + last_unsent->len += oversize_used; +#if TCP_OVERSIZE_DBGCHECK + LWIP_ASSERT("last_unsent->oversize_left >= oversize_used", + last_unsent->oversize_left >= oversize_used); + last_unsent->oversize_left -= oversize_used; +#endif /* TCP_OVERSIZE_DBGCHECK */ + } + pcb->unsent_oversize = oversize; +#endif /* TCP_OVERSIZE */ + + /* + * Phase 2: concat_p can be concatenated onto last_unsent->p, unless we + * determined that the last ROM pbuf can be extended to include the new data. + */ + if (concat_p != NULL) { + LWIP_ASSERT("tcp_write: cannot concatenate when pcb->unsent is empty", + (last_unsent != NULL)); + pbuf_cat(last_unsent->p, concat_p); + last_unsent->len += concat_p->tot_len; + } else if (extendlen > 0) { + struct pbuf *p; + LWIP_ASSERT("tcp_write: extension of reference requires reference", + last_unsent != NULL && last_unsent->p != NULL); + for (p = last_unsent->p; p->next != NULL; p = p->next) { + p->tot_len += extendlen; + } + p->tot_len += extendlen; + p->len += extendlen; + last_unsent->len += extendlen; + } + +#if TCP_CHECKSUM_ON_COPY + if (concat_chksummed) { + LWIP_ASSERT("tcp_write: concat checksum needs concatenated data", + concat_p != NULL || extendlen > 0); + /*if concat checksumm swapped - swap it back */ + if (concat_chksum_swapped) { + concat_chksum = SWAP_BYTES_IN_WORD(concat_chksum); + } + tcp_seg_add_chksum(concat_chksum, concat_chksummed, &last_unsent->chksum, + &last_unsent->chksum_swapped); + last_unsent->flags |= TF_SEG_DATA_CHECKSUMMED; + } +#endif /* TCP_CHECKSUM_ON_COPY */ + + /* + * Phase 3: Append queue to pcb->unsent. Queue may be NULL, but that + * is harmless + */ + if (last_unsent == NULL) { + pcb->unsent = queue; + } else { + last_unsent->next = queue; + } + + /* + * Finally update the pcb state. + */ + pcb->snd_lbb += len; + pcb->snd_buf -= len; + pcb->snd_queuelen = queuelen; + + LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_write: %"S16_F" (after enqueued)\n", + pcb->snd_queuelen)); + if (pcb->snd_queuelen != 0) { + LWIP_ASSERT("tcp_write: valid queue length", + pcb->unacked != NULL || pcb->unsent != NULL); + } + + /* Set the PSH flag in the last segment that we enqueued. */ + if (seg != NULL && seg->tcphdr != NULL && ((apiflags & TCP_WRITE_FLAG_MORE) == 0)) { + TCPH_SET_FLAG(seg->tcphdr, TCP_PSH); + } + + return ERR_OK; +memerr: + tcp_set_flags(pcb, TF_NAGLEMEMERR); + TCP_STATS_INC(tcp.memerr); + + if (concat_p != NULL) { + pbuf_free(concat_p); + } + if (queue != NULL) { + tcp_segs_free(queue); + } + if (pcb->snd_queuelen != 0) { + LWIP_ASSERT("tcp_write: valid queue length", pcb->unacked != NULL || + pcb->unsent != NULL); + } + LWIP_DEBUGF(TCP_QLEN_DEBUG | LWIP_DBG_STATE, ("tcp_write: %"S16_F" (with mem err)\n", pcb->snd_queuelen)); + return ERR_MEM; +} + +/** + * Split segment on the head of the unsent queue. If return is not + * ERR_OK, existing head remains intact + * + * The split is accomplished by creating a new TCP segment and pbuf + * which holds the remainder payload after the split. The original + * pbuf is trimmed to new length. This allows splitting of read-only + * pbufs + * + * @param pcb the tcp_pcb for which to split the unsent head + * @param split the amount of payload to remain in the head + */ +err_t +tcp_split_unsent_seg(struct tcp_pcb *pcb, u16_t split) +{ + struct tcp_seg *seg = NULL, *useg = NULL; + struct pbuf *p = NULL; + u8_t optlen; + u8_t optflags; + u8_t split_flags; + u8_t remainder_flags; + u16_t remainder; + u16_t offset; +#if TCP_CHECKSUM_ON_COPY + u16_t chksum = 0; + u8_t chksum_swapped = 0; + struct pbuf *q; +#endif /* TCP_CHECKSUM_ON_COPY */ + + LWIP_ASSERT("tcp_split_unsent_seg: invalid pcb", pcb != NULL); + + useg = pcb->unsent; + if (useg == NULL) { + return ERR_MEM; + } + + if (split == 0) { + LWIP_ASSERT("Can't split segment into length 0", 0); + return ERR_VAL; + } + + if (useg->len <= split) { + return ERR_OK; + } + + LWIP_ASSERT("split <= mss", split <= pcb->mss); + LWIP_ASSERT("useg->len > 0", useg->len > 0); + + /* We should check that we don't exceed TCP_SND_QUEUELEN but we need + * to split this packet so we may actually exceed the max value by + * one! + */ + LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_enqueue: split_unsent_seg: %u\n", (unsigned int)pcb->snd_queuelen)); + + optflags = useg->flags; +#if TCP_CHECKSUM_ON_COPY + /* Remove since checksum is not stored until after tcp_create_segment() */ + optflags &= ~TF_SEG_DATA_CHECKSUMMED; +#endif /* TCP_CHECKSUM_ON_COPY */ + optlen = LWIP_TCP_OPT_LENGTH(optflags); + remainder = useg->len - split; + + /* Create new pbuf for the remainder of the split */ + p = pbuf_alloc(PBUF_TRANSPORT, remainder + optlen, PBUF_RAM); + if (p == NULL) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("tcp_split_unsent_seg: could not allocate memory for pbuf remainder %u\n", remainder)); + goto memerr; + } + + /* Offset into the original pbuf is past TCP/IP headers, options, and split amount */ + offset = useg->p->tot_len - useg->len + split; + /* Copy remainder into new pbuf, headers and options will not be filled out */ + if (pbuf_copy_partial(useg->p, (u8_t *)p->payload + optlen, remainder, offset ) != remainder) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("tcp_split_unsent_seg: could not copy pbuf remainder %u\n", remainder)); + goto memerr; + } +#if TCP_CHECKSUM_ON_COPY + /* calculate the checksum on remainder data */ + tcp_seg_add_chksum(~inet_chksum((const u8_t *)p->payload + optlen, remainder), remainder, + &chksum, &chksum_swapped); +#endif /* TCP_CHECKSUM_ON_COPY */ + + /* Options are created when calling tcp_output() */ + + /* Migrate flags from original segment */ + split_flags = TCPH_FLAGS(useg->tcphdr); + remainder_flags = 0; /* ACK added in tcp_output() */ + + if (split_flags & TCP_PSH) { + split_flags &= ~TCP_PSH; + remainder_flags |= TCP_PSH; + } + if (split_flags & TCP_FIN) { + split_flags &= ~TCP_FIN; + remainder_flags |= TCP_FIN; + } + /* SYN should be left on split, RST should not be present with data */ + + seg = tcp_create_segment(pcb, p, remainder_flags, lwip_ntohl(useg->tcphdr->seqno) + split, optflags); + if (seg == NULL) { + p = NULL; /* Freed by tcp_create_segment */ + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("tcp_split_unsent_seg: could not create new TCP segment\n")); + goto memerr; + } + +#if TCP_CHECKSUM_ON_COPY + seg->chksum = chksum; + seg->chksum_swapped = chksum_swapped; + seg->flags |= TF_SEG_DATA_CHECKSUMMED; +#endif /* TCP_CHECKSUM_ON_COPY */ + + /* Remove this segment from the queue since trimming it may free pbufs */ + pcb->snd_queuelen -= pbuf_clen(useg->p); + + /* Trim the original pbuf into our split size. At this point our remainder segment must be setup + successfully because we are modifying the original segment */ + pbuf_realloc(useg->p, useg->p->tot_len - remainder); + useg->len -= remainder; + TCPH_SET_FLAG(useg->tcphdr, split_flags); +#if TCP_OVERSIZE_DBGCHECK + /* By trimming, realloc may have actually shrunk the pbuf, so clear oversize_left */ + useg->oversize_left = 0; +#endif /* TCP_OVERSIZE_DBGCHECK */ + + /* Add back to the queue with new trimmed pbuf */ + pcb->snd_queuelen += pbuf_clen(useg->p); + +#if TCP_CHECKSUM_ON_COPY + /* The checksum on the split segment is now incorrect. We need to re-run it over the split */ + useg->chksum = 0; + useg->chksum_swapped = 0; + q = useg->p; + offset = q->tot_len - useg->len; /* Offset due to exposed headers */ + + /* Advance to the pbuf where the offset ends */ + while (q != NULL && offset > q->len) { + offset -= q->len; + q = q->next; + } + LWIP_ASSERT("Found start of payload pbuf", q != NULL); + /* Checksum the first payload pbuf accounting for offset, then other pbufs are all payload */ + for (; q != NULL; offset = 0, q = q->next) { + tcp_seg_add_chksum(~inet_chksum((const u8_t *)q->payload + offset, q->len - offset), q->len - offset, + &useg->chksum, &useg->chksum_swapped); + } +#endif /* TCP_CHECKSUM_ON_COPY */ + + /* Update number of segments on the queues. Note that length now may + * exceed TCP_SND_QUEUELEN! We don't have to touch pcb->snd_buf + * because the total amount of data is constant when packet is split */ + pcb->snd_queuelen += pbuf_clen(seg->p); + + /* Finally insert remainder into queue after split (which stays head) */ + seg->next = useg->next; + useg->next = seg; + +#if TCP_OVERSIZE + /* If remainder is last segment on the unsent, ensure we clear the oversize amount + * because the remainder is always sized to the exact remaining amount */ + if (seg->next == NULL) { + pcb->unsent_oversize = 0; + } +#endif /* TCP_OVERSIZE */ + + return ERR_OK; +memerr: + TCP_STATS_INC(tcp.memerr); + + LWIP_ASSERT("seg == NULL", seg == NULL); + if (p != NULL) { + pbuf_free(p); + } + + return ERR_MEM; +} + +/** + * Called by tcp_close() to send a segment including FIN flag but not data. + * This FIN may be added to an existing segment or a new, otherwise empty + * segment is enqueued. + * + * @param pcb the tcp_pcb over which to send a segment + * @return ERR_OK if sent, another err_t otherwise + */ +err_t +tcp_send_fin(struct tcp_pcb *pcb) +{ + LWIP_ASSERT("tcp_send_fin: invalid pcb", pcb != NULL); + + /* first, try to add the fin to the last unsent segment */ + if (pcb->unsent != NULL) { + struct tcp_seg *last_unsent; + for (last_unsent = pcb->unsent; last_unsent->next != NULL; + last_unsent = last_unsent->next); + + if ((TCPH_FLAGS(last_unsent->tcphdr) & (TCP_SYN | TCP_FIN | TCP_RST)) == 0) { + /* no SYN/FIN/RST flag in the header, we can add the FIN flag */ + TCPH_SET_FLAG(last_unsent->tcphdr, TCP_FIN); + tcp_set_flags(pcb, TF_FIN); + return ERR_OK; + } + } + /* no data, no length, flags, copy=1, no optdata */ + return tcp_enqueue_flags(pcb, TCP_FIN); +} + +/** + * Enqueue SYN or FIN for transmission. + * + * Called by @ref tcp_connect, tcp_listen_input, and @ref tcp_close + * (via @ref tcp_send_fin) + * + * @param pcb Protocol control block for the TCP connection. + * @param flags TCP header flags to set in the outgoing segment. + */ +err_t +tcp_enqueue_flags(struct tcp_pcb *pcb, u8_t flags) +{ + struct pbuf *p; + struct tcp_seg *seg; + u8_t optflags = 0; + u8_t optlen = 0; + + LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_enqueue_flags: queuelen: %"U16_F"\n", (u16_t)pcb->snd_queuelen)); + + LWIP_ASSERT("tcp_enqueue_flags: need either TCP_SYN or TCP_FIN in flags (programmer violates API)", + (flags & (TCP_SYN | TCP_FIN)) != 0); + LWIP_ASSERT("tcp_enqueue_flags: invalid pcb", pcb != NULL); + + /* No need to check pcb->snd_queuelen if only SYN or FIN are allowed! */ + + /* Get options for this segment. This is a special case since this is the + only place where a SYN can be sent. */ + if (flags & TCP_SYN) { + optflags = TF_SEG_OPTS_MSS; +#if LWIP_WND_SCALE + if ((pcb->state != SYN_RCVD) || (pcb->flags & TF_WND_SCALE)) { + /* In a (sent in state SYN_RCVD), the window scale option may only + be sent if we received a window scale option from the remote host. */ + optflags |= TF_SEG_OPTS_WND_SCALE; + } +#endif /* LWIP_WND_SCALE */ +#if LWIP_TCP_SACK_OUT + if ((pcb->state != SYN_RCVD) || (pcb->flags & TF_SACK)) { + /* In a (sent in state SYN_RCVD), the SACK_PERM option may only + be sent if we received a SACK_PERM option from the remote host. */ + optflags |= TF_SEG_OPTS_SACK_PERM; + } +#endif /* LWIP_TCP_SACK_OUT */ + } +#if LWIP_TCP_TIMESTAMPS + if ((pcb->flags & TF_TIMESTAMP) || ((flags & TCP_SYN) && (pcb->state != SYN_RCVD))) { + /* Make sure the timestamp option is only included in data segments if we + agreed about it with the remote host (and in active open SYN segments). */ + optflags |= TF_SEG_OPTS_TS; + } +#endif /* LWIP_TCP_TIMESTAMPS */ + optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(optflags, pcb); + + /* Allocate pbuf with room for TCP header + options */ + if ((p = pbuf_alloc(PBUF_TRANSPORT, optlen, PBUF_RAM)) == NULL) { + tcp_set_flags(pcb, TF_NAGLEMEMERR); + TCP_STATS_INC(tcp.memerr); + return ERR_MEM; + } + LWIP_ASSERT("tcp_enqueue_flags: check that first pbuf can hold optlen", + (p->len >= optlen)); + + /* Allocate memory for tcp_seg, and fill in fields. */ + if ((seg = tcp_create_segment(pcb, p, flags, pcb->snd_lbb, optflags)) == NULL) { + tcp_set_flags(pcb, TF_NAGLEMEMERR); + TCP_STATS_INC(tcp.memerr); + return ERR_MEM; + } + LWIP_ASSERT("seg->tcphdr not aligned", ((mem_ptr_t)seg->tcphdr % LWIP_MIN(MEM_ALIGNMENT, 4)) == 0); + LWIP_ASSERT("tcp_enqueue_flags: invalid segment length", seg->len == 0); + + LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_TRACE, + ("tcp_enqueue_flags: queueing %"U32_F":%"U32_F" (0x%"X16_F")\n", + lwip_ntohl(seg->tcphdr->seqno), + lwip_ntohl(seg->tcphdr->seqno) + TCP_TCPLEN(seg), + (u16_t)flags)); + + /* Now append seg to pcb->unsent queue */ + if (pcb->unsent == NULL) { + pcb->unsent = seg; + } else { + struct tcp_seg *useg; + for (useg = pcb->unsent; useg->next != NULL; useg = useg->next); + useg->next = seg; + } +#if TCP_OVERSIZE + /* The new unsent tail has no space */ + pcb->unsent_oversize = 0; +#endif /* TCP_OVERSIZE */ + + /* SYN and FIN bump the sequence number */ + if ((flags & TCP_SYN) || (flags & TCP_FIN)) { + pcb->snd_lbb++; + /* optlen does not influence snd_buf */ + } + if (flags & TCP_FIN) { + tcp_set_flags(pcb, TF_FIN); + } + + /* update number of segments on the queues */ + pcb->snd_queuelen += pbuf_clen(seg->p); + LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_enqueue_flags: %"S16_F" (after enqueued)\n", pcb->snd_queuelen)); + if (pcb->snd_queuelen != 0) { + LWIP_ASSERT("tcp_enqueue_flags: invalid queue length", + pcb->unacked != NULL || pcb->unsent != NULL); + } + + return ERR_OK; +} + +#if LWIP_TCP_TIMESTAMPS +/* Build a timestamp option (12 bytes long) at the specified options pointer) + * + * @param pcb tcp_pcb + * @param opts option pointer where to store the timestamp option + */ +static void +tcp_build_timestamp_option(const struct tcp_pcb *pcb, u32_t *opts) +{ + LWIP_ASSERT("tcp_build_timestamp_option: invalid pcb", pcb != NULL); + + /* Pad with two NOP options to make everything nicely aligned */ + opts[0] = PP_HTONL(0x0101080A); + opts[1] = lwip_htonl(sys_now()); + opts[2] = lwip_htonl(pcb->ts_recent); +} +#endif + +#if LWIP_TCP_SACK_OUT +/** + * Calculates the number of SACK entries that should be generated. + * It takes into account whether TF_SACK flag is set, + * the number of SACK entries in tcp_pcb that are valid, + * as well as the available options size. + * + * @param pcb tcp_pcb + * @param optlen the length of other TCP options (in bytes) + * @return the number of SACK ranges that can be used + */ +static u8_t +tcp_get_num_sacks(const struct tcp_pcb *pcb, u8_t optlen) +{ + u8_t num_sacks = 0; + + LWIP_ASSERT("tcp_get_num_sacks: invalid pcb", pcb != NULL); + + if (pcb->flags & TF_SACK) { + u8_t i; + + /* The first SACK takes up 12 bytes (it includes SACK header and two NOP options), + each additional one - 8 bytes. */ + optlen += 12; + + /* Max options size = 40, number of SACK array entries = LWIP_TCP_MAX_SACK_NUM */ + for (i = 0; (i < LWIP_TCP_MAX_SACK_NUM) && (optlen <= TCP_MAX_OPTION_BYTES) && + LWIP_TCP_SACK_VALID(pcb, i); ++i) { + ++num_sacks; + optlen += 8; + } + } + + return num_sacks; +} + +/** Build a SACK option (12 or more bytes long) at the specified options pointer) + * + * @param pcb tcp_pcb + * @param opts option pointer where to store the SACK option + * @param num_sacks the number of SACKs to store + */ +static void +tcp_build_sack_option(const struct tcp_pcb *pcb, u32_t *opts, u8_t num_sacks) +{ + u8_t i; + + LWIP_ASSERT("tcp_build_sack_option: invalid pcb", pcb != NULL); + LWIP_ASSERT("tcp_build_sack_option: invalid opts", opts != NULL); + + /* Pad with two NOP options to make everything nicely aligned. + We add the length (of just the SACK option, not the NOPs in front of it), + which is 2B of header, plus 8B for each SACK. */ + *(opts++) = PP_HTONL(0x01010500 + 2 + num_sacks * 8); + + for (i = 0; i < num_sacks; ++i) { + *(opts++) = lwip_htonl(pcb->rcv_sacks[i].left); + *(opts++) = lwip_htonl(pcb->rcv_sacks[i].right); + } +} + +#endif + +#if LWIP_WND_SCALE +/** Build a window scale option (3 bytes long) at the specified options pointer) + * + * @param opts option pointer where to store the window scale option + */ +static void +tcp_build_wnd_scale_option(u32_t *opts) +{ + LWIP_ASSERT("tcp_build_wnd_scale_option: invalid opts", opts != NULL); + + /* Pad with one NOP option to make everything nicely aligned */ + opts[0] = PP_HTONL(0x01030300 | TCP_RCV_SCALE); +} +#endif + +/** + * @ingroup tcp_raw + * Find out what we can send and send it + * + * @param pcb Protocol control block for the TCP connection to send data + * @return ERR_OK if data has been sent or nothing to send + * another err_t on error + */ +err_t +tcp_output(struct tcp_pcb *pcb) +{ + struct tcp_seg *seg, *useg; + u32_t wnd, snd_nxt; + err_t err; + struct netif *netif; +#if TCP_CWND_DEBUG + s16_t i = 0; +#endif /* TCP_CWND_DEBUG */ + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ASSERT("tcp_output: invalid pcb", pcb != NULL); + /* pcb->state LISTEN not allowed here */ + LWIP_ASSERT("don't call tcp_output for listen-pcbs", + pcb->state != LISTEN); + + /* First, check if we are invoked by the TCP input processing + code. If so, we do not output anything. Instead, we rely on the + input processing code to call us when input processing is done + with. */ + if (tcp_input_pcb == pcb) { + return ERR_OK; + } + + wnd = LWIP_MIN(pcb->snd_wnd, pcb->cwnd); + + seg = pcb->unsent; + + if (seg == NULL) { + LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_output: nothing to send (%p)\n", + (void *)pcb->unsent)); + LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_output: snd_wnd %"TCPWNDSIZE_F + ", cwnd %"TCPWNDSIZE_F", wnd %"U32_F + ", seg == NULL, ack %"U32_F"\n", + pcb->snd_wnd, pcb->cwnd, wnd, pcb->lastack)); + + /* If the TF_ACK_NOW flag is set and the ->unsent queue is empty, construct + * an empty ACK segment and send it. */ + if (pcb->flags & TF_ACK_NOW) { + return tcp_send_empty_ack(pcb); + } + /* nothing to send: shortcut out of here */ + goto output_done; + } else { + LWIP_DEBUGF(TCP_CWND_DEBUG, + ("tcp_output: snd_wnd %"TCPWNDSIZE_F", cwnd %"TCPWNDSIZE_F", wnd %"U32_F + ", effwnd %"U32_F", seq %"U32_F", ack %"U32_F"\n", + pcb->snd_wnd, pcb->cwnd, wnd, + lwip_ntohl(seg->tcphdr->seqno) - pcb->lastack + seg->len, + lwip_ntohl(seg->tcphdr->seqno), pcb->lastack)); + } + + netif = tcp_route(pcb, &pcb->local_ip, &pcb->remote_ip); + if (netif == NULL) { + return ERR_RTE; + } + + /* If we don't have a local IP address, we get one from netif */ + if (ip_addr_isany(&pcb->local_ip)) { + const ip_addr_t *local_ip = ip_netif_get_local_ip(netif, &pcb->remote_ip); + if (local_ip == NULL) { + return ERR_RTE; + } + ip_addr_copy(pcb->local_ip, *local_ip); + } + + /* Handle the current segment not fitting within the window */ + if (lwip_ntohl(seg->tcphdr->seqno) - pcb->lastack + seg->len > wnd) { + /* We need to start the persistent timer when the next unsent segment does not fit + * within the remaining (could be 0) send window and RTO timer is not running (we + * have no in-flight data). If window is still too small after persist timer fires, + * then we split the segment. We don't consider the congestion window since a cwnd + * smaller than 1 SMSS implies in-flight data + */ + if (wnd == pcb->snd_wnd && pcb->unacked == NULL && pcb->persist_backoff == 0) { + pcb->persist_cnt = 0; + pcb->persist_backoff = 1; + pcb->persist_probe = 0; + } + /* We need an ACK, but can't send data now, so send an empty ACK */ + if (pcb->flags & TF_ACK_NOW) { + return tcp_send_empty_ack(pcb); + } + goto output_done; + } + /* Stop persist timer, above conditions are not active */ + pcb->persist_backoff = 0; + + /* useg should point to last segment on unacked queue */ + useg = pcb->unacked; + if (useg != NULL) { + for (; useg->next != NULL; useg = useg->next); + } + /* data available and window allows it to be sent? */ + while (seg != NULL && + lwip_ntohl(seg->tcphdr->seqno) - pcb->lastack + seg->len <= wnd) { + LWIP_ASSERT("RST not expected here!", + (TCPH_FLAGS(seg->tcphdr) & TCP_RST) == 0); + /* Stop sending if the nagle algorithm would prevent it + * Don't stop: + * - if tcp_write had a memory error before (prevent delayed ACK timeout) or + * - if FIN was already enqueued for this PCB (SYN is always alone in a segment - + * either seg->next != NULL or pcb->unacked == NULL; + * RST is no sent using tcp_write/tcp_output. + */ + if ((tcp_do_output_nagle(pcb) == 0) && + ((pcb->flags & (TF_NAGLEMEMERR | TF_FIN)) == 0)) { + break; + } +#if TCP_CWND_DEBUG + LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_output: snd_wnd %"TCPWNDSIZE_F", cwnd %"TCPWNDSIZE_F", wnd %"U32_F", effwnd %"U32_F", seq %"U32_F", ack %"U32_F", i %"S16_F"\n", + pcb->snd_wnd, pcb->cwnd, wnd, + lwip_ntohl(seg->tcphdr->seqno) + seg->len - + pcb->lastack, + lwip_ntohl(seg->tcphdr->seqno), pcb->lastack, i)); + ++i; +#endif /* TCP_CWND_DEBUG */ + + if (pcb->state != SYN_SENT) { + TCPH_SET_FLAG(seg->tcphdr, TCP_ACK); + } + + err = tcp_output_segment(seg, pcb, netif); + if (err != ERR_OK) { + /* segment could not be sent, for whatever reason */ + tcp_set_flags(pcb, TF_NAGLEMEMERR); + return err; + } +#if TCP_OVERSIZE_DBGCHECK + seg->oversize_left = 0; +#endif /* TCP_OVERSIZE_DBGCHECK */ + pcb->unsent = seg->next; + if (pcb->state != SYN_SENT) { + tcp_clear_flags(pcb, TF_ACK_DELAY | TF_ACK_NOW); + } + snd_nxt = lwip_ntohl(seg->tcphdr->seqno) + TCP_TCPLEN(seg); + if (TCP_SEQ_LT(pcb->snd_nxt, snd_nxt)) { + pcb->snd_nxt = snd_nxt; + } + /* put segment on unacknowledged list if length > 0 */ + if (TCP_TCPLEN(seg) > 0) { + seg->next = NULL; + /* unacked list is empty? */ + if (pcb->unacked == NULL) { + pcb->unacked = seg; + useg = seg; + /* unacked list is not empty? */ + } else { + /* In the case of fast retransmit, the packet should not go to the tail + * of the unacked queue, but rather somewhere before it. We need to check for + * this case. -STJ Jul 27, 2004 */ + if (TCP_SEQ_LT(lwip_ntohl(seg->tcphdr->seqno), lwip_ntohl(useg->tcphdr->seqno))) { + /* add segment to before tail of unacked list, keeping the list sorted */ + struct tcp_seg **cur_seg = &(pcb->unacked); + while (*cur_seg && + TCP_SEQ_LT(lwip_ntohl((*cur_seg)->tcphdr->seqno), lwip_ntohl(seg->tcphdr->seqno))) { + cur_seg = &((*cur_seg)->next ); + } + seg->next = (*cur_seg); + (*cur_seg) = seg; + } else { + /* add segment to tail of unacked list */ + useg->next = seg; + useg = useg->next; + } + } + /* do not queue empty segments on the unacked list */ + } else { + tcp_seg_free(seg); + } + seg = pcb->unsent; + } +#if TCP_OVERSIZE + if (pcb->unsent == NULL) { + /* last unsent has been removed, reset unsent_oversize */ + pcb->unsent_oversize = 0; + } +#endif /* TCP_OVERSIZE */ + +output_done: + tcp_clear_flags(pcb, TF_NAGLEMEMERR); + return ERR_OK; +} + +/** Check if a segment's pbufs are used by someone else than TCP. + * This can happen on retransmission if the pbuf of this segment is still + * referenced by the netif driver due to deferred transmission. + * This is the case (only!) if someone down the TX call path called + * pbuf_ref() on one of the pbufs! + * + * @arg seg the tcp segment to check + * @return 1 if ref != 1, 0 if ref == 1 + */ +static int +tcp_output_segment_busy(const struct tcp_seg *seg) +{ + LWIP_ASSERT("tcp_output_segment_busy: invalid seg", seg != NULL); + + /* We only need to check the first pbuf here: + If a pbuf is queued for transmission, a driver calls pbuf_ref(), + which only changes the ref count of the first pbuf */ + if (seg->p->ref != 1) { + /* other reference found */ + return 1; + } + /* no other references found */ + return 0; +} + +/** + * Called by tcp_output() to actually send a TCP segment over IP. + * + * @param seg the tcp_seg to send + * @param pcb the tcp_pcb for the TCP connection used to send the segment + * @param netif the netif used to send the segment + */ +static err_t +tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb, struct netif *netif) +{ + err_t err; + u16_t len; + u32_t *opts; +#if TCP_CHECKSUM_ON_COPY + int seg_chksum_was_swapped = 0; +#endif + + LWIP_ASSERT("tcp_output_segment: invalid seg", seg != NULL); + LWIP_ASSERT("tcp_output_segment: invalid pcb", pcb != NULL); + LWIP_ASSERT("tcp_output_segment: invalid netif", netif != NULL); + + if (tcp_output_segment_busy(seg)) { + /* This should not happen: rexmit functions should have checked this. + However, since this function modifies p->len, we must not continue in this case. */ + LWIP_DEBUGF(TCP_RTO_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_output_segment: segment busy\n")); + return ERR_OK; + } + + /* The TCP header has already been constructed, but the ackno and + wnd fields remain. */ + seg->tcphdr->ackno = lwip_htonl(pcb->rcv_nxt); + + /* advertise our receive window size in this TCP segment */ +#if LWIP_WND_SCALE + if (seg->flags & TF_SEG_OPTS_WND_SCALE) { + /* The Window field in a SYN segment itself (the only type where we send + the window scale option) is never scaled. */ + seg->tcphdr->wnd = lwip_htons(TCPWND_MIN16(pcb->rcv_ann_wnd)); + } else +#endif /* LWIP_WND_SCALE */ + { + seg->tcphdr->wnd = lwip_htons(TCPWND_MIN16(RCV_WND_SCALE(pcb, pcb->rcv_ann_wnd))); + } + + pcb->rcv_ann_right_edge = pcb->rcv_nxt + pcb->rcv_ann_wnd; + + /* Add any requested options. NB MSS option is only set on SYN + packets, so ignore it here */ + /* cast through void* to get rid of alignment warnings */ + opts = (u32_t *)(void *)(seg->tcphdr + 1); + if (seg->flags & TF_SEG_OPTS_MSS) { + u16_t mss; +#if TCP_CALCULATE_EFF_SEND_MSS + mss = tcp_eff_send_mss_netif(TCP_MSS, netif, &pcb->remote_ip); +#else /* TCP_CALCULATE_EFF_SEND_MSS */ + mss = TCP_MSS; +#endif /* TCP_CALCULATE_EFF_SEND_MSS */ + *opts = TCP_BUILD_MSS_OPTION(mss); + opts += 1; + } +#if LWIP_TCP_TIMESTAMPS + pcb->ts_lastacksent = pcb->rcv_nxt; + + if (seg->flags & TF_SEG_OPTS_TS) { + tcp_build_timestamp_option(pcb, opts); + opts += 3; + } +#endif +#if LWIP_WND_SCALE + if (seg->flags & TF_SEG_OPTS_WND_SCALE) { + tcp_build_wnd_scale_option(opts); + opts += 1; + } +#endif +#if LWIP_TCP_SACK_OUT + if (seg->flags & TF_SEG_OPTS_SACK_PERM) { + /* Pad with two NOP options to make everything nicely aligned + * NOTE: When we send both timestamp and SACK_PERM options, + * we could use the first two NOPs before the timestamp to store SACK_PERM option, + * but that would complicate the code. + */ + *(opts++) = PP_HTONL(0x01010402); + } +#endif + + /* Set retransmission timer running if it is not currently enabled + This must be set before checking the route. */ + if (pcb->rtime < 0) { + pcb->rtime = 0; + } + + if (pcb->rttest == 0) { + pcb->rttest = tcp_ticks; + pcb->rtseq = lwip_ntohl(seg->tcphdr->seqno); + + LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_output_segment: rtseq %"U32_F"\n", pcb->rtseq)); + } + LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_output_segment: %"U32_F":%"U32_F"\n", + lwip_htonl(seg->tcphdr->seqno), lwip_htonl(seg->tcphdr->seqno) + + seg->len)); + + len = (u16_t)((u8_t *)seg->tcphdr - (u8_t *)seg->p->payload); + if (len == 0) { + /** Exclude retransmitted segments from this count. */ + MIB2_STATS_INC(mib2.tcpoutsegs); + } + + seg->p->len -= len; + seg->p->tot_len -= len; + + seg->p->payload = seg->tcphdr; + + seg->tcphdr->chksum = 0; + +#ifdef LWIP_HOOK_TCP_OUT_ADD_TCPOPTS + opts = LWIP_HOOK_TCP_OUT_ADD_TCPOPTS(seg->p, seg->tcphdr, pcb, opts); +#endif + LWIP_ASSERT("options not filled", (u8_t *)opts == ((u8_t *)(seg->tcphdr + 1)) + LWIP_TCP_OPT_LENGTH_SEGMENT(seg->flags, pcb)); + +#if CHECKSUM_GEN_TCP + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_TCP) { +#if TCP_CHECKSUM_ON_COPY + u32_t acc; +#if TCP_CHECKSUM_ON_COPY_SANITY_CHECK + u16_t chksum_slow = ip_chksum_pseudo(seg->p, IP_PROTO_TCP, + seg->p->tot_len, &pcb->local_ip, &pcb->remote_ip); +#endif /* TCP_CHECKSUM_ON_COPY_SANITY_CHECK */ + if ((seg->flags & TF_SEG_DATA_CHECKSUMMED) == 0) { + LWIP_ASSERT("data included but not checksummed", + seg->p->tot_len == TCPH_HDRLEN_BYTES(seg->tcphdr)); + } + + /* rebuild TCP header checksum (TCP header changes for retransmissions!) */ + acc = ip_chksum_pseudo_partial(seg->p, IP_PROTO_TCP, + seg->p->tot_len, TCPH_HDRLEN_BYTES(seg->tcphdr), &pcb->local_ip, &pcb->remote_ip); + /* add payload checksum */ + if (seg->chksum_swapped) { + seg_chksum_was_swapped = 1; + seg->chksum = SWAP_BYTES_IN_WORD(seg->chksum); + seg->chksum_swapped = 0; + } + acc = (u16_t)~acc + seg->chksum; + seg->tcphdr->chksum = (u16_t)~FOLD_U32T(acc); +#if TCP_CHECKSUM_ON_COPY_SANITY_CHECK + if (chksum_slow != seg->tcphdr->chksum) { + TCP_CHECKSUM_ON_COPY_SANITY_CHECK_FAIL( + ("tcp_output_segment: calculated checksum is %"X16_F" instead of %"X16_F"\n", + seg->tcphdr->chksum, chksum_slow)); + seg->tcphdr->chksum = chksum_slow; + } +#endif /* TCP_CHECKSUM_ON_COPY_SANITY_CHECK */ +#else /* TCP_CHECKSUM_ON_COPY */ + seg->tcphdr->chksum = ip_chksum_pseudo(seg->p, IP_PROTO_TCP, + seg->p->tot_len, &pcb->local_ip, &pcb->remote_ip); +#endif /* TCP_CHECKSUM_ON_COPY */ + } +#endif /* CHECKSUM_GEN_TCP */ + TCP_STATS_INC(tcp.xmit); + + NETIF_SET_HINTS(netif, &(pcb->netif_hints)); + err = ip_output_if(seg->p, &pcb->local_ip, &pcb->remote_ip, pcb->ttl, + pcb->tos, IP_PROTO_TCP, netif); + NETIF_RESET_HINTS(netif); + +#if TCP_CHECKSUM_ON_COPY + if (seg_chksum_was_swapped) { + /* if data is added to this segment later, chksum needs to be swapped, + so restore this now */ + seg->chksum = SWAP_BYTES_IN_WORD(seg->chksum); + seg->chksum_swapped = 1; + } +#endif + + return err; +} + +/** + * Requeue all unacked segments for retransmission + * + * Called by tcp_slowtmr() for slow retransmission. + * + * @param pcb the tcp_pcb for which to re-enqueue all unacked segments + */ +err_t +tcp_rexmit_rto_prepare(struct tcp_pcb *pcb) +{ + struct tcp_seg *seg; + + LWIP_ASSERT("tcp_rexmit_rto_prepare: invalid pcb", pcb != NULL); + + if (pcb->unacked == NULL) { + return ERR_VAL; + } + + /* Move all unacked segments to the head of the unsent queue. + However, give up if any of the unsent pbufs are still referenced by the + netif driver due to deferred transmission. No point loading the link further + if it is struggling to flush its buffered writes. */ + for (seg = pcb->unacked; seg->next != NULL; seg = seg->next) { + if (tcp_output_segment_busy(seg)) { + LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_rexmit_rto: segment busy\n")); + return ERR_VAL; + } + } + if (tcp_output_segment_busy(seg)) { + LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_rexmit_rto: segment busy\n")); + return ERR_VAL; + } + /* concatenate unsent queue after unacked queue */ + seg->next = pcb->unsent; +#if TCP_OVERSIZE_DBGCHECK + /* if last unsent changed, we need to update unsent_oversize */ + if (pcb->unsent == NULL) { + pcb->unsent_oversize = seg->oversize_left; + } +#endif /* TCP_OVERSIZE_DBGCHECK */ + /* unsent queue is the concatenated queue (of unacked, unsent) */ + pcb->unsent = pcb->unacked; + /* unacked queue is now empty */ + pcb->unacked = NULL; + + /* Mark RTO in-progress */ + tcp_set_flags(pcb, TF_RTO); + /* Record the next byte following retransmit */ + pcb->rto_end = lwip_ntohl(seg->tcphdr->seqno) + TCP_TCPLEN(seg); + /* Don't take any RTT measurements after retransmitting. */ + pcb->rttest = 0; + + return ERR_OK; +} + +/** + * Requeue all unacked segments for retransmission + * + * Called by tcp_slowtmr() for slow retransmission. + * + * @param pcb the tcp_pcb for which to re-enqueue all unacked segments + */ +void +tcp_rexmit_rto_commit(struct tcp_pcb *pcb) +{ + LWIP_ASSERT("tcp_rexmit_rto_commit: invalid pcb", pcb != NULL); + + /* increment number of retransmissions */ + if (pcb->nrtx < 0xFF) { + ++pcb->nrtx; + } + /* Do the actual retransmission */ + tcp_output(pcb); +} + +/** + * Requeue all unacked segments for retransmission + * + * Called by tcp_process() only, tcp_slowtmr() needs to do some things between + * "prepare" and "commit". + * + * @param pcb the tcp_pcb for which to re-enqueue all unacked segments + */ +void +tcp_rexmit_rto(struct tcp_pcb *pcb) +{ + LWIP_ASSERT("tcp_rexmit_rto: invalid pcb", pcb != NULL); + + if (tcp_rexmit_rto_prepare(pcb) == ERR_OK) { + tcp_rexmit_rto_commit(pcb); + } +} + +/** + * Requeue the first unacked segment for retransmission + * + * Called by tcp_receive() for fast retransmit. + * + * @param pcb the tcp_pcb for which to retransmit the first unacked segment + */ +err_t +tcp_rexmit(struct tcp_pcb *pcb) +{ + struct tcp_seg *seg; + struct tcp_seg **cur_seg; + + LWIP_ASSERT("tcp_rexmit: invalid pcb", pcb != NULL); + + if (pcb->unacked == NULL) { + return ERR_VAL; + } + + seg = pcb->unacked; + + /* Give up if the segment is still referenced by the netif driver + due to deferred transmission. */ + if (tcp_output_segment_busy(seg)) { + LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_rexmit busy\n")); + return ERR_VAL; + } + + /* Move the first unacked segment to the unsent queue */ + /* Keep the unsent queue sorted. */ + pcb->unacked = seg->next; + + cur_seg = &(pcb->unsent); + while (*cur_seg && + TCP_SEQ_LT(lwip_ntohl((*cur_seg)->tcphdr->seqno), lwip_ntohl(seg->tcphdr->seqno))) { + cur_seg = &((*cur_seg)->next ); + } + seg->next = *cur_seg; + *cur_seg = seg; +#if TCP_OVERSIZE + if (seg->next == NULL) { + /* the retransmitted segment is last in unsent, so reset unsent_oversize */ + pcb->unsent_oversize = 0; + } +#endif /* TCP_OVERSIZE */ + + if (pcb->nrtx < 0xFF) { + ++pcb->nrtx; + } + + /* Don't take any rtt measurements after retransmitting. */ + pcb->rttest = 0; + + /* Do the actual retransmission. */ + MIB2_STATS_INC(mib2.tcpretranssegs); + /* No need to call tcp_output: we are always called from tcp_input() + and thus tcp_output directly returns. */ + return ERR_OK; +} + + +/** + * Handle retransmission after three dupacks received + * + * @param pcb the tcp_pcb for which to retransmit the first unacked segment + */ +void +tcp_rexmit_fast(struct tcp_pcb *pcb) +{ + LWIP_ASSERT("tcp_rexmit_fast: invalid pcb", pcb != NULL); + + if (pcb->unacked != NULL && !(pcb->flags & TF_INFR)) { + /* This is fast retransmit. Retransmit the first unacked segment. */ + LWIP_DEBUGF(TCP_FR_DEBUG, + ("tcp_receive: dupacks %"U16_F" (%"U32_F + "), fast retransmit %"U32_F"\n", + (u16_t)pcb->dupacks, pcb->lastack, + lwip_ntohl(pcb->unacked->tcphdr->seqno))); + if (tcp_rexmit(pcb) == ERR_OK) { + /* Set ssthresh to half of the minimum of the current + * cwnd and the advertised window */ + pcb->ssthresh = LWIP_MIN(pcb->cwnd, pcb->snd_wnd) / 2; + + /* The minimum value for ssthresh should be 2 MSS */ + if (pcb->ssthresh < (2U * pcb->mss)) { + LWIP_DEBUGF(TCP_FR_DEBUG, + ("tcp_receive: The minimum value for ssthresh %"TCPWNDSIZE_F + " should be min 2 mss %"U16_F"...\n", + pcb->ssthresh, (u16_t)(2 * pcb->mss))); + pcb->ssthresh = 2 * pcb->mss; + } + + pcb->cwnd = pcb->ssthresh + 3 * pcb->mss; + tcp_set_flags(pcb, TF_INFR); + + /* Reset the retransmission timer to prevent immediate rto retransmissions */ + pcb->rtime = 0; + } + } +} + +static struct pbuf * +tcp_output_alloc_header_common(u32_t ackno, u16_t optlen, u16_t datalen, + u32_t seqno_be /* already in network byte order */, + u16_t src_port, u16_t dst_port, u8_t flags, u16_t wnd) +{ + struct tcp_hdr *tcphdr; + struct pbuf *p; + + p = pbuf_alloc(PBUF_IP, TCP_HLEN + optlen + datalen, PBUF_RAM); + if (p != NULL) { + LWIP_ASSERT("check that first pbuf can hold struct tcp_hdr", + (p->len >= TCP_HLEN + optlen)); + tcphdr = (struct tcp_hdr *)p->payload; + tcphdr->src = lwip_htons(src_port); + tcphdr->dest = lwip_htons(dst_port); + tcphdr->seqno = seqno_be; + tcphdr->ackno = lwip_htonl(ackno); + TCPH_HDRLEN_FLAGS_SET(tcphdr, (5 + optlen / 4), flags); + tcphdr->wnd = lwip_htons(wnd); + tcphdr->chksum = 0; + tcphdr->urgp = 0; + } + return p; +} + +/** Allocate a pbuf and create a tcphdr at p->payload, used for output + * functions other than the default tcp_output -> tcp_output_segment + * (e.g. tcp_send_empty_ack, etc.) + * + * @param pcb tcp pcb for which to send a packet (used to initialize tcp_hdr) + * @param optlen length of header-options + * @param datalen length of tcp data to reserve in pbuf + * @param seqno_be seqno in network byte order (big-endian) + * @return pbuf with p->payload being the tcp_hdr + */ +static struct pbuf * +tcp_output_alloc_header(struct tcp_pcb *pcb, u16_t optlen, u16_t datalen, + u32_t seqno_be /* already in network byte order */) +{ + struct pbuf *p; + + LWIP_ASSERT("tcp_output_alloc_header: invalid pcb", pcb != NULL); + + p = tcp_output_alloc_header_common(pcb->rcv_nxt, optlen, datalen, + seqno_be, pcb->local_port, pcb->remote_port, TCP_ACK, + TCPWND_MIN16(RCV_WND_SCALE(pcb, pcb->rcv_ann_wnd))); + if (p != NULL) { + /* If we're sending a packet, update the announced right window edge */ + pcb->rcv_ann_right_edge = pcb->rcv_nxt + pcb->rcv_ann_wnd; + } + return p; +} + +/* Fill in options for control segments */ +static void +tcp_output_fill_options(const struct tcp_pcb *pcb, struct pbuf *p, u8_t optflags, u8_t num_sacks) +{ + struct tcp_hdr *tcphdr; + u32_t *opts; + u16_t sacks_len = 0; + + LWIP_ASSERT("tcp_output_fill_options: invalid pbuf", p != NULL); + + tcphdr = (struct tcp_hdr *)p->payload; + opts = (u32_t *)(void *)(tcphdr + 1); + + /* NB. MSS and window scale options are only sent on SYNs, so ignore them here */ + +#if LWIP_TCP_TIMESTAMPS + if (optflags & TF_SEG_OPTS_TS) { + tcp_build_timestamp_option(pcb, opts); + opts += 3; + } +#endif + +#if LWIP_TCP_SACK_OUT + if (pcb && (num_sacks > 0)) { + tcp_build_sack_option(pcb, opts, num_sacks); + /* 1 word for SACKs header (including 2xNOP), and 2 words for each SACK */ + sacks_len = 1 + num_sacks * 2; + opts += sacks_len; + } +#else + LWIP_UNUSED_ARG(num_sacks); +#endif + +#ifdef LWIP_HOOK_TCP_OUT_ADD_TCPOPTS + opts = LWIP_HOOK_TCP_OUT_ADD_TCPOPTS(p, tcphdr, pcb, opts); +#endif + + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(sacks_len); + LWIP_ASSERT("options not filled", (u8_t *)opts == ((u8_t *)(tcphdr + 1)) + sacks_len * 4 + LWIP_TCP_OPT_LENGTH_SEGMENT(optflags, pcb)); + LWIP_UNUSED_ARG(optflags); /* for LWIP_NOASSERT */ + LWIP_UNUSED_ARG(opts); /* for LWIP_NOASSERT */ +} + +/** Output a control segment pbuf to IP. + * + * Called from tcp_rst, tcp_send_empty_ack, tcp_keepalive and tcp_zero_window_probe, + * this function combines selecting a netif for transmission, generating the tcp + * header checksum and calling ip_output_if while handling netif hints and stats. + */ +static err_t +tcp_output_control_segment(const struct tcp_pcb *pcb, struct pbuf *p, + const ip_addr_t *src, const ip_addr_t *dst) +{ + err_t err; + struct netif *netif; + + LWIP_ASSERT("tcp_output_control_segment: invalid pbuf", p != NULL); + + netif = tcp_route(pcb, src, dst); + if (netif == NULL) { + err = ERR_RTE; + } else { + u8_t ttl, tos; +#if CHECKSUM_GEN_TCP + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_TCP) { + struct tcp_hdr *tcphdr = (struct tcp_hdr *)p->payload; + tcphdr->chksum = ip_chksum_pseudo(p, IP_PROTO_TCP, p->tot_len, + src, dst); + } +#endif + if (pcb != NULL) { + NETIF_SET_HINTS(netif, LWIP_CONST_CAST(struct netif_hint*, &(pcb->netif_hints))); + ttl = pcb->ttl; + tos = pcb->tos; + } else { + /* Send output with hardcoded TTL/HL since we have no access to the pcb */ + ttl = TCP_TTL; + tos = 0; + } + TCP_STATS_INC(tcp.xmit); + err = ip_output_if(p, src, dst, ttl, tos, IP_PROTO_TCP, netif); + NETIF_RESET_HINTS(netif); + } + pbuf_free(p); + return err; +} + +/** + * Send a TCP RESET packet (empty segment with RST flag set) either to + * abort a connection or to show that there is no matching local connection + * for a received segment. + * + * Called by tcp_abort() (to abort a local connection), tcp_input() (if no + * matching local pcb was found), tcp_listen_input() (if incoming segment + * has ACK flag set) and tcp_process() (received segment in the wrong state) + * + * Since a RST segment is in most cases not sent for an active connection, + * tcp_rst() has a number of arguments that are taken from a tcp_pcb for + * most other segment output functions. + * + * @param pcb TCP pcb (may be NULL if no pcb is available) + * @param seqno the sequence number to use for the outgoing segment + * @param ackno the acknowledge number to use for the outgoing segment + * @param local_ip the local IP address to send the segment from + * @param remote_ip the remote IP address to send the segment to + * @param local_port the local TCP port to send the segment from + * @param remote_port the remote TCP port to send the segment to + */ +void +tcp_rst(const struct tcp_pcb *pcb, u32_t seqno, u32_t ackno, + const ip_addr_t *local_ip, const ip_addr_t *remote_ip, + u16_t local_port, u16_t remote_port) +{ + struct pbuf *p; + u16_t wnd; + u8_t optlen; + + LWIP_ASSERT("tcp_rst: invalid local_ip", local_ip != NULL); + LWIP_ASSERT("tcp_rst: invalid remote_ip", remote_ip != NULL); + + optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(0, pcb); + +#if LWIP_WND_SCALE + wnd = PP_HTONS(((TCP_WND >> TCP_RCV_SCALE) & 0xFFFF)); +#else + wnd = PP_HTONS(TCP_WND); +#endif + + p = tcp_output_alloc_header_common(ackno, optlen, 0, lwip_htonl(seqno), local_port, + remote_port, TCP_RST | TCP_ACK, wnd); + if (p == NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_rst: could not allocate memory for pbuf\n")); + return; + } + tcp_output_fill_options(pcb, p, 0, 0); + + MIB2_STATS_INC(mib2.tcpoutrsts); + + tcp_output_control_segment(pcb, p, local_ip, remote_ip); + LWIP_DEBUGF(TCP_RST_DEBUG, ("tcp_rst: seqno %"U32_F" ackno %"U32_F".\n", seqno, ackno)); +} + +/** + * Send an ACK without data. + * + * @param pcb Protocol control block for the TCP connection to send the ACK + */ +err_t +tcp_send_empty_ack(struct tcp_pcb *pcb) +{ + err_t err; + struct pbuf *p; + u8_t optlen, optflags = 0; + u8_t num_sacks = 0; + + LWIP_ASSERT("tcp_send_empty_ack: invalid pcb", pcb != NULL); + +#if LWIP_TCP_TIMESTAMPS + if (pcb->flags & TF_TIMESTAMP) { + optflags = TF_SEG_OPTS_TS; + } +#endif + optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(optflags, pcb); + +#if LWIP_TCP_SACK_OUT + /* For now, SACKs are only sent with empty ACKs */ + if ((num_sacks = tcp_get_num_sacks(pcb, optlen)) > 0) { + optlen += 4 + num_sacks * 8; /* 4 bytes for header (including 2*NOP), plus 8B for each SACK */ + } +#endif + + p = tcp_output_alloc_header(pcb, optlen, 0, lwip_htonl(pcb->snd_nxt)); + if (p == NULL) { + /* let tcp_fasttmr retry sending this ACK */ + tcp_set_flags(pcb, TF_ACK_DELAY | TF_ACK_NOW); + LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_output: (ACK) could not allocate pbuf\n")); + return ERR_BUF; + } + tcp_output_fill_options(pcb, p, optflags, num_sacks); + +#if LWIP_TCP_TIMESTAMPS + pcb->ts_lastacksent = pcb->rcv_nxt; +#endif + + LWIP_DEBUGF(TCP_OUTPUT_DEBUG, + ("tcp_output: sending ACK for %"U32_F"\n", pcb->rcv_nxt)); + err = tcp_output_control_segment(pcb, p, &pcb->local_ip, &pcb->remote_ip); + if (err != ERR_OK) { + /* let tcp_fasttmr retry sending this ACK */ + tcp_set_flags(pcb, TF_ACK_DELAY | TF_ACK_NOW); + } else { + /* remove ACK flags from the PCB, as we sent an empty ACK now */ + tcp_clear_flags(pcb, TF_ACK_DELAY | TF_ACK_NOW); + } + + return err; +} + +/** + * Send keepalive packets to keep a connection active although + * no data is sent over it. + * + * Called by tcp_slowtmr() + * + * @param pcb the tcp_pcb for which to send a keepalive packet + */ +err_t +tcp_keepalive(struct tcp_pcb *pcb) +{ + err_t err; + struct pbuf *p; + u8_t optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(0, pcb); + + LWIP_ASSERT("tcp_keepalive: invalid pcb", pcb != NULL); + + LWIP_DEBUGF(TCP_DEBUG, ("tcp_keepalive: sending KEEPALIVE probe to ")); + ip_addr_debug_print_val(TCP_DEBUG, pcb->remote_ip); + LWIP_DEBUGF(TCP_DEBUG, ("\n")); + + LWIP_DEBUGF(TCP_DEBUG, ("tcp_keepalive: tcp_ticks %"U32_F" pcb->tmr %"U32_F" pcb->keep_cnt_sent %"U16_F"\n", + tcp_ticks, pcb->tmr, (u16_t)pcb->keep_cnt_sent)); + + p = tcp_output_alloc_header(pcb, optlen, 0, lwip_htonl(pcb->snd_nxt - 1)); + if (p == NULL) { + LWIP_DEBUGF(TCP_DEBUG, + ("tcp_keepalive: could not allocate memory for pbuf\n")); + return ERR_MEM; + } + tcp_output_fill_options(pcb, p, 0, 0); + err = tcp_output_control_segment(pcb, p, &pcb->local_ip, &pcb->remote_ip); + + LWIP_DEBUGF(TCP_DEBUG, ("tcp_keepalive: seqno %"U32_F" ackno %"U32_F" err %d.\n", + pcb->snd_nxt - 1, pcb->rcv_nxt, (int)err)); + return err; +} + +/** + * Send persist timer zero-window probes to keep a connection active + * when a window update is lost. + * + * Called by tcp_slowtmr() + * + * @param pcb the tcp_pcb for which to send a zero-window probe packet + */ +err_t +tcp_zero_window_probe(struct tcp_pcb *pcb) +{ + err_t err; + struct pbuf *p; + struct tcp_hdr *tcphdr; + struct tcp_seg *seg; + u16_t len; + u8_t is_fin; + u32_t snd_nxt; + u8_t optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(0, pcb); + + LWIP_ASSERT("tcp_zero_window_probe: invalid pcb", pcb != NULL); + + LWIP_DEBUGF(TCP_DEBUG, ("tcp_zero_window_probe: sending ZERO WINDOW probe to ")); + ip_addr_debug_print_val(TCP_DEBUG, pcb->remote_ip); + LWIP_DEBUGF(TCP_DEBUG, ("\n")); + + LWIP_DEBUGF(TCP_DEBUG, + ("tcp_zero_window_probe: tcp_ticks %"U32_F + " pcb->tmr %"U32_F" pcb->keep_cnt_sent %"U16_F"\n", + tcp_ticks, pcb->tmr, (u16_t)pcb->keep_cnt_sent)); + + /* Only consider unsent, persist timer should be off when there is data in-flight */ + seg = pcb->unsent; + if (seg == NULL) { + /* Not expected, persist timer should be off when the send buffer is empty */ + return ERR_OK; + } + + /* increment probe count. NOTE: we record probe even if it fails + to actually transmit due to an error. This ensures memory exhaustion/ + routing problem doesn't leave a zero-window pcb as an indefinite zombie. + RTO mechanism has similar behavior, see pcb->nrtx */ + if (pcb->persist_probe < 0xFF) { + ++pcb->persist_probe; + } + + is_fin = ((TCPH_FLAGS(seg->tcphdr) & TCP_FIN) != 0) && (seg->len == 0); + /* we want to send one seqno: either FIN or data (no options) */ + len = is_fin ? 0 : 1; + + p = tcp_output_alloc_header(pcb, optlen, len, seg->tcphdr->seqno); + if (p == NULL) { + LWIP_DEBUGF(TCP_DEBUG, ("tcp_zero_window_probe: no memory for pbuf\n")); + return ERR_MEM; + } + tcphdr = (struct tcp_hdr *)p->payload; + + if (is_fin) { + /* FIN segment, no data */ + TCPH_FLAGS_SET(tcphdr, TCP_ACK | TCP_FIN); + } else { + /* Data segment, copy in one byte from the head of the unacked queue */ + char *d = ((char *)p->payload + TCP_HLEN); + /* Depending on whether the segment has already been sent (unacked) or not + (unsent), seg->p->payload points to the IP header or TCP header. + Ensure we copy the first TCP data byte: */ + pbuf_copy_partial(seg->p, d, 1, seg->p->tot_len - seg->len); + } + + /* The byte may be acknowledged without the window being opened. */ + snd_nxt = lwip_ntohl(seg->tcphdr->seqno) + 1; + if (TCP_SEQ_LT(pcb->snd_nxt, snd_nxt)) { + pcb->snd_nxt = snd_nxt; + } + tcp_output_fill_options(pcb, p, 0, 0); + + err = tcp_output_control_segment(pcb, p, &pcb->local_ip, &pcb->remote_ip); + + LWIP_DEBUGF(TCP_DEBUG, ("tcp_zero_window_probe: seqno %"U32_F + " ackno %"U32_F" err %d.\n", + pcb->snd_nxt - 1, pcb->rcv_nxt, (int)err)); + return err; +} +#endif /* LWIP_TCP */ diff --git a/middleware/lwip/src/core/timeouts.c b/middleware/lwip/src/core/timeouts.c new file mode 100644 index 0000000..91657eb --- /dev/null +++ b/middleware/lwip/src/core/timeouts.c @@ -0,0 +1,451 @@ +/** + * @file + * Stack-internal timers implementation. + * This file includes timer callbacks for stack-internal timers as well as + * functions to set up or stop timers and check for expired timers. + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * Simon Goldschmidt + * + */ + +#include "lwip/opt.h" + +#include "lwip/timeouts.h" +#include "lwip/priv/tcp_priv.h" + +#include "lwip/def.h" +#include "lwip/memp.h" +#include "lwip/priv/tcpip_priv.h" + +#include "lwip/ip4_frag.h" +#include "lwip/etharp.h" +#include "lwip/dhcp.h" +#include "lwip/acd.h" +#include "lwip/igmp.h" +#include "lwip/dns.h" +#include "lwip/nd6.h" +#include "lwip/ip6_frag.h" +#include "lwip/mld6.h" +#include "lwip/dhcp6.h" +#include "lwip/sys.h" +#include "lwip/pbuf.h" + +#if LWIP_DEBUG_TIMERNAMES +#define HANDLER(x) x, #x +#else /* LWIP_DEBUG_TIMERNAMES */ +#define HANDLER(x) x +#endif /* LWIP_DEBUG_TIMERNAMES */ + +#define LWIP_MAX_TIMEOUT 0x7fffffff + +/* Check if timer's expiry time is greater than time and care about u32_t wraparounds */ +#define TIME_LESS_THAN(t, compare_to) ( (((u32_t)((t)-(compare_to))) > LWIP_MAX_TIMEOUT) ? 1 : 0 ) + +/** This array contains all stack-internal cyclic timers. To get the number of + * timers, use LWIP_ARRAYSIZE() */ +const struct lwip_cyclic_timer lwip_cyclic_timers[] = { +#if LWIP_TCP + /* The TCP timer is a special case: it does not have to run always and + is triggered to start from TCP using tcp_timer_needed() */ + {TCP_TMR_INTERVAL, HANDLER(tcp_tmr)}, +#endif /* LWIP_TCP */ +#if LWIP_IPV4 +#if IP_REASSEMBLY + {IP_TMR_INTERVAL, HANDLER(ip_reass_tmr)}, +#endif /* IP_REASSEMBLY */ +#if LWIP_ARP + {ARP_TMR_INTERVAL, HANDLER(etharp_tmr)}, +#endif /* LWIP_ARP */ +#if LWIP_DHCP + {DHCP_COARSE_TIMER_MSECS, HANDLER(dhcp_coarse_tmr)}, + {DHCP_FINE_TIMER_MSECS, HANDLER(dhcp_fine_tmr)}, +#endif /* LWIP_DHCP */ +#if LWIP_ACD + {ACD_TMR_INTERVAL, HANDLER(acd_tmr)}, +#endif /* LWIP_ACD */ +#if LWIP_IGMP + {IGMP_TMR_INTERVAL, HANDLER(igmp_tmr)}, +#endif /* LWIP_IGMP */ +#endif /* LWIP_IPV4 */ +#if LWIP_DNS + {DNS_TMR_INTERVAL, HANDLER(dns_tmr)}, +#endif /* LWIP_DNS */ +#if LWIP_IPV6 + {ND6_TMR_INTERVAL, HANDLER(nd6_tmr)}, +#if LWIP_IPV6_REASS + {IP6_REASS_TMR_INTERVAL, HANDLER(ip6_reass_tmr)}, +#endif /* LWIP_IPV6_REASS */ +#if LWIP_IPV6_MLD + {MLD6_TMR_INTERVAL, HANDLER(mld6_tmr)}, +#endif /* LWIP_IPV6_MLD */ +#if LWIP_IPV6_DHCP6 + {DHCP6_TIMER_MSECS, HANDLER(dhcp6_tmr)}, +#endif /* LWIP_IPV6_DHCP6 */ +#endif /* LWIP_IPV6 */ +}; +const int lwip_num_cyclic_timers = LWIP_ARRAYSIZE(lwip_cyclic_timers); + +#if LWIP_TIMERS && !LWIP_TIMERS_CUSTOM + +/** The one and only timeout list */ +static struct sys_timeo *next_timeout; + +static u32_t current_timeout_due_time; + +#if LWIP_TESTMODE +struct sys_timeo** +sys_timeouts_get_next_timeout(void) +{ + return &next_timeout; +} +#endif + +#if LWIP_TCP +/** global variable that shows if the tcp timer is currently scheduled or not */ +static int tcpip_tcp_timer_active; + +/** + * Timer callback function that calls tcp_tmr() and reschedules itself. + * + * @param arg unused argument + */ +static void +tcpip_tcp_timer(void *arg) +{ + LWIP_UNUSED_ARG(arg); + + /* call TCP timer handler */ + tcp_tmr(); + /* timer still needed? */ + if (tcp_active_pcbs || tcp_tw_pcbs) { + /* restart timer */ + sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL); + } else { + /* disable timer */ + tcpip_tcp_timer_active = 0; + } +} + +/** + * Called from TCP_REG when registering a new PCB: + * the reason is to have the TCP timer only running when + * there are active (or time-wait) PCBs. + */ +void +tcp_timer_needed(void) +{ + LWIP_ASSERT_CORE_LOCKED(); + + /* timer is off but needed again? */ + if (!tcpip_tcp_timer_active && (tcp_active_pcbs || tcp_tw_pcbs)) { + /* enable and start timer */ + tcpip_tcp_timer_active = 1; + sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL); + } +} +#endif /* LWIP_TCP */ + +static void +#if LWIP_DEBUG_TIMERNAMES +sys_timeout_abs(u32_t abs_time, sys_timeout_handler handler, void *arg, const char *handler_name) +#else /* LWIP_DEBUG_TIMERNAMES */ +sys_timeout_abs(u32_t abs_time, sys_timeout_handler handler, void *arg) +#endif +{ + struct sys_timeo *timeout, *t; + + timeout = (struct sys_timeo *)memp_malloc(MEMP_SYS_TIMEOUT); + if (timeout == NULL) { + LWIP_ASSERT("sys_timeout: timeout != NULL, pool MEMP_SYS_TIMEOUT is empty", timeout != NULL); + return; + } + + timeout->next = NULL; + timeout->h = handler; + timeout->arg = arg; + timeout->time = abs_time; + +#if LWIP_DEBUG_TIMERNAMES + timeout->handler_name = handler_name; + LWIP_DEBUGF(TIMERS_DEBUG, ("sys_timeout: %p abs_time=%"U32_F" handler=%s arg=%p\n", + (void *)timeout, abs_time, handler_name, (void *)arg)); +#endif /* LWIP_DEBUG_TIMERNAMES */ + + if (next_timeout == NULL) { + next_timeout = timeout; + return; + } + if (TIME_LESS_THAN(timeout->time, next_timeout->time)) { + timeout->next = next_timeout; + next_timeout = timeout; + } else { + for (t = next_timeout; t != NULL; t = t->next) { + if ((t->next == NULL) || TIME_LESS_THAN(timeout->time, t->next->time)) { + timeout->next = t->next; + t->next = timeout; + break; + } + } + } +} + +/** + * Timer callback function that calls cyclic->handler() and reschedules itself. + * + * @param arg unused argument + */ +#if !LWIP_TESTMODE +static +#endif +void +lwip_cyclic_timer(void *arg) +{ + u32_t now; + u32_t next_timeout_time; + const struct lwip_cyclic_timer *cyclic = (const struct lwip_cyclic_timer *)arg; + +#if LWIP_DEBUG_TIMERNAMES + LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: %s()\n", cyclic->handler_name)); +#endif + cyclic->handler(); + + now = sys_now(); + next_timeout_time = (u32_t)(current_timeout_due_time + cyclic->interval_ms); /* overflow handled by TIME_LESS_THAN macro */ + if (TIME_LESS_THAN(next_timeout_time, now)) { + /* timer would immediately expire again -> "overload" -> restart without any correction */ +#if LWIP_DEBUG_TIMERNAMES + sys_timeout_abs((u32_t)(now + cyclic->interval_ms), lwip_cyclic_timer, arg, cyclic->handler_name); +#else + sys_timeout_abs((u32_t)(now + cyclic->interval_ms), lwip_cyclic_timer, arg); +#endif + + } else { + /* correct cyclic interval with handler execution delay and sys_check_timeouts jitter */ +#if LWIP_DEBUG_TIMERNAMES + sys_timeout_abs(next_timeout_time, lwip_cyclic_timer, arg, cyclic->handler_name); +#else + sys_timeout_abs(next_timeout_time, lwip_cyclic_timer, arg); +#endif + } +} + +/** Initialize this module */ +void sys_timeouts_init(void) +{ + size_t i; + /* tcp_tmr() at index 0 is started on demand */ + for (i = (LWIP_TCP ? 1 : 0); i < LWIP_ARRAYSIZE(lwip_cyclic_timers); i++) { + /* we have to cast via size_t to get rid of const warning + (this is OK as cyclic_timer() casts back to const* */ + sys_timeout(lwip_cyclic_timers[i].interval_ms, lwip_cyclic_timer, LWIP_CONST_CAST(void *, &lwip_cyclic_timers[i])); + } +} + +/** + * Create a one-shot timer (aka timeout). Timeouts are processed in the + * following cases: + * - while waiting for a message using sys_timeouts_mbox_fetch() + * - by calling sys_check_timeouts() (NO_SYS==1 only) + * + * @param msecs time in milliseconds after that the timer should expire + * @param handler callback function to call when msecs have elapsed + * @param arg argument to pass to the callback function + */ +#if LWIP_DEBUG_TIMERNAMES +void +sys_timeout_debug(u32_t msecs, sys_timeout_handler handler, void *arg, const char *handler_name) +#else /* LWIP_DEBUG_TIMERNAMES */ +void +sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg) +#endif /* LWIP_DEBUG_TIMERNAMES */ +{ + u32_t next_timeout_time; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ASSERT("Timeout time too long, max is LWIP_UINT32_MAX/4 msecs", msecs <= (LWIP_UINT32_MAX / 4)); + + next_timeout_time = (u32_t)(sys_now() + msecs); /* overflow handled by TIME_LESS_THAN macro */ + +#if LWIP_DEBUG_TIMERNAMES + sys_timeout_abs(next_timeout_time, handler, arg, handler_name); +#else + sys_timeout_abs(next_timeout_time, handler, arg); +#endif +} + +/** + * Go through timeout list (for this task only) and remove the first matching + * entry (subsequent entries remain untouched), even though the timeout has not + * triggered yet. + * + * @param handler callback function that would be called by the timeout + * @param arg callback argument that would be passed to handler +*/ +void +sys_untimeout(sys_timeout_handler handler, void *arg) +{ + struct sys_timeo *prev_t, *t; + + LWIP_ASSERT_CORE_LOCKED(); + + if (next_timeout == NULL) { + return; + } + + for (t = next_timeout, prev_t = NULL; t != NULL; prev_t = t, t = t->next) { + if ((t->h == handler) && (t->arg == arg)) { + /* We have a match */ + /* Unlink from previous in list */ + if (prev_t == NULL) { + next_timeout = t->next; + } else { + prev_t->next = t->next; + } + memp_free(MEMP_SYS_TIMEOUT, t); + return; + } + } + return; +} + +/** + * @ingroup lwip_nosys + * Handle timeouts for NO_SYS==1 (i.e. without using + * tcpip_thread/sys_timeouts_mbox_fetch(). Uses sys_now() to call timeout + * handler functions when timeouts expire. + * + * Must be called periodically from your main loop. + */ +void +sys_check_timeouts(void) +{ + u32_t now; + + LWIP_ASSERT_CORE_LOCKED(); + + /* Process only timers expired at the start of the function. */ + now = sys_now(); + + do { + struct sys_timeo *tmptimeout; + sys_timeout_handler handler; + void *arg; + + PBUF_CHECK_FREE_OOSEQ(); + + tmptimeout = next_timeout; + if (tmptimeout == NULL) { + return; + } + + if (TIME_LESS_THAN(now, tmptimeout->time)) { + return; + } + + /* Timeout has expired */ + next_timeout = tmptimeout->next; + handler = tmptimeout->h; + arg = tmptimeout->arg; + current_timeout_due_time = tmptimeout->time; +#if LWIP_DEBUG_TIMERNAMES + if (handler != NULL) { + LWIP_DEBUGF(TIMERS_DEBUG, ("sct calling h=%s t=%"U32_F" arg=%p\n", + tmptimeout->handler_name, sys_now() - tmptimeout->time, arg)); + } +#endif /* LWIP_DEBUG_TIMERNAMES */ + memp_free(MEMP_SYS_TIMEOUT, tmptimeout); + if (handler != NULL) { + handler(arg); + } + LWIP_TCPIP_THREAD_ALIVE(); + + /* Repeat until all expired timers have been called */ + } while (1); +} + +/** Rebase the timeout times to the current time. + * This is necessary if sys_check_timeouts() hasn't been called for a long + * time (e.g. while saving energy) to prevent all timer functions of that + * period being called. + */ +void +sys_restart_timeouts(void) +{ + u32_t now; + u32_t base; + struct sys_timeo *t; + + if (next_timeout == NULL) { + return; + } + + now = sys_now(); + base = next_timeout->time; + + for (t = next_timeout; t != NULL; t = t->next) { + t->time = (t->time - base) + now; + } +} + +/** Return the time left before the next timeout is due. If no timeouts are + * enqueued, returns 0xffffffff + */ +u32_t +sys_timeouts_sleeptime(void) +{ + u32_t now; + + LWIP_ASSERT_CORE_LOCKED(); + + if (next_timeout == NULL) { + return SYS_TIMEOUTS_SLEEPTIME_INFINITE; + } + now = sys_now(); + if (TIME_LESS_THAN(next_timeout->time, now)) { + return 0; + } else { + u32_t ret = (u32_t)(next_timeout->time - now); + LWIP_ASSERT("invalid sleeptime", ret <= LWIP_MAX_TIMEOUT); + return ret; + } +} + +#else /* LWIP_TIMERS && !LWIP_TIMERS_CUSTOM */ +/* Satisfy the TCP code which calls this function */ +void +tcp_timer_needed(void) +{ +} +#endif /* LWIP_TIMERS && !LWIP_TIMERS_CUSTOM */ diff --git a/middleware/lwip/src/core/udp.c b/middleware/lwip/src/core/udp.c new file mode 100644 index 0000000..db833d0 --- /dev/null +++ b/middleware/lwip/src/core/udp.c @@ -0,0 +1,1320 @@ +/** + * @file + * User Datagram Protocol module
+ * The code for the User Datagram Protocol UDP & UDPLite (RFC 3828).
+ * See also @ref udp_raw + * + * @defgroup udp_raw UDP + * @ingroup callbackstyle_api + * User Datagram Protocol module
+ * @see @ref api + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +/* @todo Check the use of '(struct udp_pcb).chksum_len_rx'! + */ + +#include "lwip/opt.h" + +#if LWIP_UDP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/udp.h" +#include "lwip/def.h" +#include "lwip/memp.h" +#include "lwip/inet_chksum.h" +#include "lwip/ip_addr.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/netif.h" +#include "lwip/icmp.h" +#include "lwip/icmp6.h" +#include "lwip/stats.h" +#include "lwip/snmp.h" +#include "lwip/dhcp.h" + +#include + +#ifndef UDP_LOCAL_PORT_RANGE_START +/* From http://www.iana.org/assignments/port-numbers: + "The Dynamic and/or Private Ports are those from 49152 through 65535" */ +#define UDP_LOCAL_PORT_RANGE_START 0xc000 +#define UDP_LOCAL_PORT_RANGE_END 0xffff +#define UDP_ENSURE_LOCAL_PORT_RANGE(port) ((u16_t)(((port) & (u16_t)~UDP_LOCAL_PORT_RANGE_START) + UDP_LOCAL_PORT_RANGE_START)) +#endif + +/* last local UDP port */ +static u16_t udp_port = UDP_LOCAL_PORT_RANGE_START; + +/* The list of UDP PCBs */ +/* exported in udp.h (was static) */ +struct udp_pcb *udp_pcbs; + +/** + * Initialize this module. + */ +void +udp_init(void) +{ +#ifdef LWIP_RAND + udp_port = UDP_ENSURE_LOCAL_PORT_RANGE(LWIP_RAND()); +#endif /* LWIP_RAND */ +} + +/** + * Allocate a new local UDP port. + * + * @return a new (free) local UDP port number + */ +static u16_t +udp_new_port(void) +{ + u16_t n = 0; + struct udp_pcb *pcb; + +again: + if (udp_port++ == UDP_LOCAL_PORT_RANGE_END) { + udp_port = UDP_LOCAL_PORT_RANGE_START; + } + /* Check all PCBs. */ + for (pcb = udp_pcbs; pcb != NULL; pcb = pcb->next) { + if (pcb->local_port == udp_port) { + if (++n > (UDP_LOCAL_PORT_RANGE_END - UDP_LOCAL_PORT_RANGE_START)) { + return 0; + } + goto again; + } + } + return udp_port; +} + +/** Common code to see if the current input packet matches the pcb + * (current input packet is accessed via ip(4/6)_current_* macros) + * + * @param pcb pcb to check + * @param inp network interface on which the datagram was received (only used for IPv4) + * @param broadcast 1 if his is an IPv4 broadcast (global or subnet-only), 0 otherwise (only used for IPv4) + * @return 1 on match, 0 otherwise + */ +static u8_t +udp_input_local_match(struct udp_pcb *pcb, struct netif *inp, u8_t broadcast) +{ + LWIP_UNUSED_ARG(inp); /* in IPv6 only case */ + LWIP_UNUSED_ARG(broadcast); /* in IPv6 only case */ + + LWIP_ASSERT("udp_input_local_match: invalid pcb", pcb != NULL); + LWIP_ASSERT("udp_input_local_match: invalid netif", inp != NULL); + + /* check if PCB is bound to specific netif */ + if ((pcb->netif_idx != NETIF_NO_INDEX) && + (pcb->netif_idx != netif_get_index(ip_data.current_input_netif))) { + return 0; + } + + /* Dual-stack: PCBs listening to any IP type also listen to any IP address */ + if (IP_IS_ANY_TYPE_VAL(pcb->local_ip)) { +#if LWIP_IPV4 && IP_SOF_BROADCAST_RECV + if ((broadcast != 0) && !ip_get_option(pcb, SOF_BROADCAST)) { + return 0; + } +#endif /* LWIP_IPV4 && IP_SOF_BROADCAST_RECV */ + return 1; + } + + /* Only need to check PCB if incoming IP version matches PCB IP version */ + if (IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ip_current_dest_addr())) { +#if LWIP_IPV4 + /* Special case: IPv4 broadcast: all or broadcasts in my subnet + * Note: broadcast variable can only be 1 if it is an IPv4 broadcast */ + if (broadcast != 0) { +#if IP_SOF_BROADCAST_RECV + if (ip_get_option(pcb, SOF_BROADCAST)) +#endif /* IP_SOF_BROADCAST_RECV */ + { + if (ip4_addr_isany(ip_2_ip4(&pcb->local_ip)) || + ((ip4_current_dest_addr()->addr == IPADDR_BROADCAST)) || + ip4_addr_net_eq(ip_2_ip4(&pcb->local_ip), ip4_current_dest_addr(), netif_ip4_netmask(inp))) { + return 1; + } + } + } else +#endif /* LWIP_IPV4 */ + /* Handle IPv4 and IPv6: all or exact match */ + if (ip_addr_isany(&pcb->local_ip) || ip_addr_eq(&pcb->local_ip, ip_current_dest_addr())) { + return 1; + } + } + + return 0; +} + +/** + * Process an incoming UDP datagram. + * + * Given an incoming UDP datagram (as a chain of pbufs) this function + * finds a corresponding UDP PCB and hands over the pbuf to the pcbs + * recv function. If no pcb is found or the datagram is incorrect, the + * pbuf is freed. + * + * @param p pbuf to be demultiplexed to a UDP PCB (p->payload pointing to the UDP header) + * @param inp network interface on which the datagram was received. + * + */ +void +udp_input(struct pbuf *p, struct netif *inp) +{ + struct udp_hdr *udphdr; + struct udp_pcb *pcb, *prev; + struct udp_pcb *uncon_pcb; + u16_t src, dest; + u8_t broadcast; + u8_t for_us = 0; + + LWIP_UNUSED_ARG(inp); + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ASSERT("udp_input: invalid pbuf", p != NULL); + LWIP_ASSERT("udp_input: invalid netif", inp != NULL); + + PERF_START; + + UDP_STATS_INC(udp.recv); + + /* Check minimum length (UDP header) */ + if (p->len < UDP_HLEN) { + /* drop short packets */ + LWIP_DEBUGF(UDP_DEBUG, + ("udp_input: short UDP datagram (%"U16_F" bytes) discarded\n", p->tot_len)); + UDP_STATS_INC(udp.lenerr); + UDP_STATS_INC(udp.drop); + MIB2_STATS_INC(mib2.udpinerrors); + pbuf_free(p); + goto end; + } + + udphdr = (struct udp_hdr *)p->payload; + + /* is broadcast packet ? */ + broadcast = ip_addr_isbroadcast(ip_current_dest_addr(), ip_current_netif()); + + LWIP_DEBUGF(UDP_DEBUG, ("udp_input: received datagram of length %"U16_F"\n", p->tot_len)); + + /* convert src and dest ports to host byte order */ + src = lwip_ntohs(udphdr->src); + dest = lwip_ntohs(udphdr->dest); + + udp_debug_print(udphdr); + + /* print the UDP source and destination */ + LWIP_DEBUGF(UDP_DEBUG, ("udp (")); + ip_addr_debug_print_val(UDP_DEBUG, *ip_current_dest_addr()); + LWIP_DEBUGF(UDP_DEBUG, (", %"U16_F") <-- (", lwip_ntohs(udphdr->dest))); + ip_addr_debug_print_val(UDP_DEBUG, *ip_current_src_addr()); + LWIP_DEBUGF(UDP_DEBUG, (", %"U16_F")\n", lwip_ntohs(udphdr->src))); + + pcb = NULL; + prev = NULL; + uncon_pcb = NULL; + /* Iterate through the UDP pcb list for a matching pcb. + * 'Perfect match' pcbs (connected to the remote port & ip address) are + * preferred. If no perfect match is found, the first unconnected pcb that + * matches the local port and ip address gets the datagram. */ + for (pcb = udp_pcbs; pcb != NULL; pcb = pcb->next) { + /* print the PCB local and remote address */ + LWIP_DEBUGF(UDP_DEBUG, ("pcb (")); + ip_addr_debug_print_val(UDP_DEBUG, pcb->local_ip); + LWIP_DEBUGF(UDP_DEBUG, (", %"U16_F") <-- (", pcb->local_port)); + ip_addr_debug_print_val(UDP_DEBUG, pcb->remote_ip); + LWIP_DEBUGF(UDP_DEBUG, (", %"U16_F")\n", pcb->remote_port)); + + /* compare PCB local addr+port to UDP destination addr+port */ + if ((pcb->local_port == dest) && + (udp_input_local_match(pcb, inp, broadcast) != 0)) { + if ((pcb->flags & UDP_FLAGS_CONNECTED) == 0) { + if (uncon_pcb == NULL) { + /* the first unconnected matching PCB */ + uncon_pcb = pcb; +#if LWIP_IPV4 + } else if (broadcast && ip4_current_dest_addr()->addr == IPADDR_BROADCAST) { + /* global broadcast address (only valid for IPv4; match was checked before) */ + if (!IP_IS_V4_VAL(uncon_pcb->local_ip) || !ip4_addr_eq(ip_2_ip4(&uncon_pcb->local_ip), netif_ip4_addr(inp))) { + /* uncon_pcb does not match the input netif, check this pcb */ + if (IP_IS_V4_VAL(pcb->local_ip) && ip4_addr_eq(ip_2_ip4(&pcb->local_ip), netif_ip4_addr(inp))) { + /* better match */ + uncon_pcb = pcb; + } + } +#endif /* LWIP_IPV4 */ + } +#if SO_REUSE + else if (!ip_addr_isany(&pcb->local_ip)) { + /* prefer specific IPs over catch-all */ + uncon_pcb = pcb; + } +#endif /* SO_REUSE */ + } + + /* compare PCB remote addr+port to UDP source addr+port */ + if ((pcb->remote_port == src) && + (ip_addr_isany_val(pcb->remote_ip) || + ip_addr_eq(&pcb->remote_ip, ip_current_src_addr()))) { + /* the first fully matching PCB */ + if (prev != NULL) { + /* move the pcb to the front of udp_pcbs so that is + found faster next time */ + prev->next = pcb->next; + pcb->next = udp_pcbs; + udp_pcbs = pcb; + } else { + UDP_STATS_INC(udp.cachehit); + } + break; + } + } + + prev = pcb; + } + /* no fully matching pcb found? then look for an unconnected pcb */ + if (pcb == NULL) { + pcb = uncon_pcb; + } + + /* Check checksum if this is a match or if it was directed at us. */ + if (pcb != NULL) { + for_us = 1; + } else { +#if LWIP_IPV6 + if (ip_current_is_v6()) { + for_us = netif_get_ip6_addr_match(inp, ip6_current_dest_addr()) >= 0; + } +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 + if (!ip_current_is_v6()) { + for_us = ip4_addr_eq(netif_ip4_addr(inp), ip4_current_dest_addr()); + } +#endif /* LWIP_IPV4 */ + } + + if (for_us) { + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_input: calculating checksum\n")); +#if CHECKSUM_CHECK_UDP + IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_CHECK_UDP) { +#if LWIP_UDPLITE + if (ip_current_header_proto() == IP_PROTO_UDPLITE) { + /* Do the UDP Lite checksum */ + u16_t chklen = lwip_ntohs(udphdr->len); + if (chklen < sizeof(struct udp_hdr)) { + if (chklen == 0) { + /* For UDP-Lite, checksum length of 0 means checksum + over the complete packet (See RFC 3828 chap. 3.1) */ + chklen = p->tot_len; + } else { + /* At least the UDP-Lite header must be covered by the + checksum! (Again, see RFC 3828 chap. 3.1) */ + goto chkerr; + } + } + if (ip_chksum_pseudo_partial(p, IP_PROTO_UDPLITE, + p->tot_len, chklen, + ip_current_src_addr(), ip_current_dest_addr()) != 0) { + goto chkerr; + } + } else +#endif /* LWIP_UDPLITE */ + { + if (udphdr->chksum != 0) { + if (ip_chksum_pseudo(p, IP_PROTO_UDP, p->tot_len, + ip_current_src_addr(), + ip_current_dest_addr()) != 0) { + goto chkerr; + } + } + } + } +#endif /* CHECKSUM_CHECK_UDP */ + if (pbuf_remove_header(p, UDP_HLEN)) { + /* Can we cope with this failing? Just assert for now */ + LWIP_ASSERT("pbuf_remove_header failed", 0); + UDP_STATS_INC(udp.drop); + MIB2_STATS_INC(mib2.udpinerrors); + pbuf_free(p); + goto end; + } + + if (pcb != NULL) { + MIB2_STATS_INC(mib2.udpindatagrams); +#if SO_REUSE && SO_REUSE_RXTOALL + if (ip_get_option(pcb, SOF_REUSEADDR) && + (broadcast || ip_addr_ismulticast(ip_current_dest_addr()))) { + /* pass broadcast- or multicast packets to all multicast pcbs + if SOF_REUSEADDR is set on the first match */ + struct udp_pcb *mpcb; + for (mpcb = udp_pcbs; mpcb != NULL; mpcb = mpcb->next) { + if (mpcb != pcb) { + /* compare PCB local addr+port to UDP destination addr+port */ + if ((mpcb->local_port == dest) && + (udp_input_local_match(mpcb, inp, broadcast) != 0)) { + /* pass a copy of the packet to all local matches */ + if (mpcb->recv != NULL) { + struct pbuf *q; + q = pbuf_clone(PBUF_RAW, PBUF_POOL, p); + if (q != NULL) { + mpcb->recv(mpcb->recv_arg, mpcb, q, ip_current_src_addr(), src); + } + } + } + } + } + } +#endif /* SO_REUSE && SO_REUSE_RXTOALL */ + /* callback */ + if (pcb->recv != NULL) { + /* now the recv function is responsible for freeing p */ + pcb->recv(pcb->recv_arg, pcb, p, ip_current_src_addr(), src); + } else { + /* no recv function registered? then we have to free the pbuf! */ + pbuf_free(p); + goto end; + } + } else { + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_input: not for us.\n")); + +#if LWIP_ICMP || LWIP_ICMP6 + /* No match was found, send ICMP destination port unreachable unless + destination address was broadcast/multicast. */ + if (!broadcast && !ip_addr_ismulticast(ip_current_dest_addr())) { + /* move payload pointer back to ip header */ + pbuf_header_force(p, (s16_t)(ip_current_header_tot_len() + UDP_HLEN)); + icmp_port_unreach(ip_current_is_v6(), p); + } +#endif /* LWIP_ICMP || LWIP_ICMP6 */ + UDP_STATS_INC(udp.proterr); + UDP_STATS_INC(udp.drop); + MIB2_STATS_INC(mib2.udpnoports); + pbuf_free(p); + } + } else { + pbuf_free(p); + } +end: + PERF_STOP("udp_input"); + return; +#if CHECKSUM_CHECK_UDP +chkerr: + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("udp_input: UDP (or UDP Lite) datagram discarded due to failing checksum\n")); + UDP_STATS_INC(udp.chkerr); + UDP_STATS_INC(udp.drop); + MIB2_STATS_INC(mib2.udpinerrors); + pbuf_free(p); + PERF_STOP("udp_input"); +#endif /* CHECKSUM_CHECK_UDP */ +} + +/** + * @ingroup udp_raw + * Sends the pbuf p using UDP. The pbuf is not deallocated. + * + * + * @param pcb UDP PCB used to send the data. + * @param p chain of pbuf's to be sent. + * + * The datagram will be sent to the current remote_ip & remote_port + * stored in pcb. If the pcb is not bound to a port, it will + * automatically be bound to a random port. + * + * @return lwIP error code. + * - ERR_OK. Successful. No error occurred. + * - ERR_MEM. Out of memory. + * - ERR_RTE. Could not find route to destination address. + * - ERR_VAL. No PCB or PCB is dual-stack + * - More errors could be returned by lower protocol layers. + * + * @see udp_disconnect() udp_sendto() + */ +err_t +udp_send(struct udp_pcb *pcb, struct pbuf *p) +{ + LWIP_ERROR("udp_send: invalid pcb", pcb != NULL, return ERR_ARG); + LWIP_ERROR("udp_send: invalid pbuf", p != NULL, return ERR_ARG); + + if (IP_IS_ANY_TYPE_VAL(pcb->remote_ip)) { + return ERR_VAL; + } + + /* send to the packet using remote ip and port stored in the pcb */ + return udp_sendto(pcb, p, &pcb->remote_ip, pcb->remote_port); +} + +#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP +/** @ingroup udp_raw + * Same as udp_send() but with checksum + */ +err_t +udp_send_chksum(struct udp_pcb *pcb, struct pbuf *p, + u8_t have_chksum, u16_t chksum) +{ + LWIP_ERROR("udp_send_chksum: invalid pcb", pcb != NULL, return ERR_ARG); + LWIP_ERROR("udp_send_chksum: invalid pbuf", p != NULL, return ERR_ARG); + + if (IP_IS_ANY_TYPE_VAL(pcb->remote_ip)) { + return ERR_VAL; + } + + /* send to the packet using remote ip and port stored in the pcb */ + return udp_sendto_chksum(pcb, p, &pcb->remote_ip, pcb->remote_port, + have_chksum, chksum); +} +#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ + +/** + * @ingroup udp_raw + * Send data to a specified address using UDP. + * + * @param pcb UDP PCB used to send the data. + * @param p chain of pbuf's to be sent. + * @param dst_ip Destination IP address. + * @param dst_port Destination UDP port. + * + * dst_ip & dst_port are expected to be in the same byte order as in the pcb. + * + * If the PCB already has a remote address association, it will + * be restored after the data is sent. + * + * @return lwIP error code (@see udp_send for possible error codes) + * + * @see udp_disconnect() udp_send() + */ +err_t +udp_sendto(struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *dst_ip, u16_t dst_port) +{ +#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP + return udp_sendto_chksum(pcb, p, dst_ip, dst_port, 0, 0); +} + +/** @ingroup udp_raw + * Same as udp_sendto(), but with checksum */ +err_t +udp_sendto_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, + u16_t dst_port, u8_t have_chksum, u16_t chksum) +{ +#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ + struct netif *netif; + + LWIP_ERROR("udp_sendto: invalid pcb", pcb != NULL, return ERR_ARG); + LWIP_ERROR("udp_sendto: invalid pbuf", p != NULL, return ERR_ARG); + LWIP_ERROR("udp_sendto: invalid dst_ip", dst_ip != NULL, return ERR_ARG); + + if (!IP_ADDR_PCB_VERSION_MATCH(pcb, dst_ip)) { + return ERR_VAL; + } + + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_send\n")); + + if (pcb->netif_idx != NETIF_NO_INDEX) { + netif = netif_get_by_index(pcb->netif_idx); + } else { +#if LWIP_MULTICAST_TX_OPTIONS + netif = NULL; + if (ip_addr_ismulticast(dst_ip)) { + /* For IPv6, the interface to use for packets with a multicast destination + * is specified using an interface index. The same approach may be used for + * IPv4 as well, in which case it overrides the IPv4 multicast override + * address below. Here we have to look up the netif by going through the + * list, but by doing so we skip a route lookup. If the interface index has + * gone stale, we fall through and do the regular route lookup after all. */ + if (pcb->mcast_ifindex != NETIF_NO_INDEX) { + netif = netif_get_by_index(pcb->mcast_ifindex); + } +#if LWIP_IPV4 + else +#if LWIP_IPV6 + if (IP_IS_V4(dst_ip)) +#endif /* LWIP_IPV6 */ + { + /* IPv4 does not use source-based routing by default, so we use an + administratively selected interface for multicast by default. + However, this can be overridden by setting an interface address + in pcb->mcast_ip4 that is used for routing. If this routing lookup + fails, we try regular routing as though no override was set. */ + if (!ip4_addr_isany_val(pcb->mcast_ip4) && + !ip4_addr_eq(&pcb->mcast_ip4, IP4_ADDR_BROADCAST)) { + netif = ip4_route_src(ip_2_ip4(&pcb->local_ip), &pcb->mcast_ip4); + } + } +#endif /* LWIP_IPV4 */ + } + + if (netif == NULL) +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + { + /* find the outgoing network interface for this packet */ + netif = ip_route(&pcb->local_ip, dst_ip); + } + } + + /* no outgoing network interface could be found? */ + if (netif == NULL) { + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("udp_send: No route to ")); + ip_addr_debug_print(UDP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, dst_ip); + LWIP_DEBUGF(UDP_DEBUG, ("\n")); + UDP_STATS_INC(udp.rterr); + return ERR_RTE; + } +#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP + return udp_sendto_if_chksum(pcb, p, dst_ip, dst_port, netif, have_chksum, chksum); +#else /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ + return udp_sendto_if(pcb, p, dst_ip, dst_port, netif); +#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ +} + +/** + * @ingroup udp_raw + * Send data to a specified address using UDP. + * The netif used for sending can be specified. + * + * This function exists mainly for DHCP, to be able to send UDP packets + * on a netif that is still down. + * + * @param pcb UDP PCB used to send the data. + * @param p chain of pbuf's to be sent. + * @param dst_ip Destination IP address. + * @param dst_port Destination UDP port. + * @param netif the netif used for sending. + * + * dst_ip & dst_port are expected to be in the same byte order as in the pcb. + * + * @return lwIP error code (@see udp_send for possible error codes) + * + * @see udp_disconnect() udp_send() + */ +err_t +udp_sendto_if(struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *dst_ip, u16_t dst_port, struct netif *netif) +{ +#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP + return udp_sendto_if_chksum(pcb, p, dst_ip, dst_port, netif, 0, 0); +} + +/** Same as udp_sendto_if(), but with checksum */ +err_t +udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, + u16_t dst_port, struct netif *netif, u8_t have_chksum, + u16_t chksum) +{ +#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ + const ip_addr_t *src_ip; + + LWIP_ERROR("udp_sendto_if: invalid pcb", pcb != NULL, return ERR_ARG); + LWIP_ERROR("udp_sendto_if: invalid pbuf", p != NULL, return ERR_ARG); + LWIP_ERROR("udp_sendto_if: invalid dst_ip", dst_ip != NULL, return ERR_ARG); + LWIP_ERROR("udp_sendto_if: invalid netif", netif != NULL, return ERR_ARG); + + if (!IP_ADDR_PCB_VERSION_MATCH(pcb, dst_ip)) { + return ERR_VAL; + } + + /* PCB local address is IP_ANY_ADDR or multicast? */ +#if LWIP_IPV6 + if (IP_IS_V6(dst_ip)) { + if (ip6_addr_isany(ip_2_ip6(&pcb->local_ip)) || + ip6_addr_ismulticast(ip_2_ip6(&pcb->local_ip))) { + src_ip = ip6_select_source_address(netif, ip_2_ip6(dst_ip)); + if (src_ip == NULL) { + /* No suitable source address was found. */ + return ERR_RTE; + } + } else { + /* use UDP PCB local IPv6 address as source address, if still valid. */ + if (netif_get_ip6_addr_match(netif, ip_2_ip6(&pcb->local_ip)) < 0) { + /* Address isn't valid anymore. */ + return ERR_RTE; + } + src_ip = &pcb->local_ip; + } + } +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 && LWIP_IPV6 + else +#endif /* LWIP_IPV4 && LWIP_IPV6 */ +#if LWIP_IPV4 + if (ip4_addr_isany(ip_2_ip4(&pcb->local_ip)) || + ip4_addr_ismulticast(ip_2_ip4(&pcb->local_ip))) { + /* if the local_ip is any or multicast + * use the outgoing network interface IP address as source address */ + src_ip = netif_ip_addr4(netif); + } else { + /* check if UDP PCB local IP address is correct + * this could be an old address if netif->ip_addr has changed */ + if (!ip4_addr_eq(ip_2_ip4(&(pcb->local_ip)), netif_ip4_addr(netif))) { + /* local_ip doesn't match, drop the packet */ + return ERR_RTE; + } + /* use UDP PCB local IP address as source address */ + src_ip = &pcb->local_ip; + } +#endif /* LWIP_IPV4 */ +#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP + return udp_sendto_if_src_chksum(pcb, p, dst_ip, dst_port, netif, have_chksum, chksum, src_ip); +#else /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ + return udp_sendto_if_src(pcb, p, dst_ip, dst_port, netif, src_ip); +#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ +} + +/** @ingroup udp_raw + * Same as @ref udp_sendto_if, but with source address */ +err_t +udp_sendto_if_src(struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *dst_ip, u16_t dst_port, struct netif *netif, const ip_addr_t *src_ip) +{ +#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP + return udp_sendto_if_src_chksum(pcb, p, dst_ip, dst_port, netif, 0, 0, src_ip); +} + +/** Same as udp_sendto_if_src(), but with checksum */ +err_t +udp_sendto_if_src_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, + u16_t dst_port, struct netif *netif, u8_t have_chksum, + u16_t chksum, const ip_addr_t *src_ip) +{ +#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ + struct udp_hdr *udphdr; + err_t err; + struct pbuf *q; /* q will be sent down the stack */ + u8_t ip_proto; + u8_t ttl; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("udp_sendto_if_src: invalid pcb", pcb != NULL, return ERR_ARG); + LWIP_ERROR("udp_sendto_if_src: invalid pbuf", p != NULL, return ERR_ARG); + LWIP_ERROR("udp_sendto_if_src: invalid dst_ip", dst_ip != NULL, return ERR_ARG); + LWIP_ERROR("udp_sendto_if_src: invalid src_ip", src_ip != NULL, return ERR_ARG); + LWIP_ERROR("udp_sendto_if_src: invalid netif", netif != NULL, return ERR_ARG); + + if (!IP_ADDR_PCB_VERSION_MATCH(pcb, src_ip) || + !IP_ADDR_PCB_VERSION_MATCH(pcb, dst_ip)) { + return ERR_VAL; + } + +#if LWIP_IPV4 && IP_SOF_BROADCAST + /* broadcast filter? */ + if (!ip_get_option(pcb, SOF_BROADCAST) && +#if LWIP_IPV6 + IP_IS_V4(dst_ip) && +#endif /* LWIP_IPV6 */ + ip_addr_isbroadcast(dst_ip, netif)) { + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, + ("udp_sendto_if: SOF_BROADCAST not enabled on pcb %p\n", (void *)pcb)); + return ERR_VAL; + } +#endif /* LWIP_IPV4 && IP_SOF_BROADCAST */ + + /* if the PCB is not yet bound to a port, bind it here */ + if (pcb->local_port == 0) { + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_send: not yet bound to a port, binding now\n")); + err = udp_bind(pcb, &pcb->local_ip, pcb->local_port); + if (err != ERR_OK) { + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("udp_send: forced port bind failed\n")); + return err; + } + } + + /* packet too large to add a UDP header without causing an overflow? */ + if ((u16_t)(p->tot_len + UDP_HLEN) < p->tot_len) { + return ERR_MEM; + } + /* not enough space to add an UDP header to first pbuf in given p chain? */ + if (pbuf_add_header(p, UDP_HLEN)) { + /* allocate header in a separate new pbuf */ + q = pbuf_alloc(PBUF_IP, UDP_HLEN, PBUF_RAM); + /* new header pbuf could not be allocated? */ + if (q == NULL) { + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("udp_send: could not allocate header\n")); + return ERR_MEM; + } + if (p->tot_len != 0) { + /* chain header q in front of given pbuf p (only if p contains data) */ + pbuf_chain(q, p); + } + /* first pbuf q points to header pbuf */ + LWIP_DEBUGF(UDP_DEBUG, + ("udp_send: added header pbuf %p before given pbuf %p\n", (void *)q, (void *)p)); + } else { + /* adding space for header within p succeeded */ + /* first pbuf q equals given pbuf */ + q = p; + LWIP_DEBUGF(UDP_DEBUG, ("udp_send: added header in given pbuf %p\n", (void *)p)); + } + LWIP_ASSERT("check that first pbuf can hold struct udp_hdr", + (q->len >= sizeof(struct udp_hdr))); + /* q now represents the packet to be sent */ + udphdr = (struct udp_hdr *)q->payload; + udphdr->src = lwip_htons(pcb->local_port); + udphdr->dest = lwip_htons(dst_port); + /* in UDP, 0 checksum means 'no checksum' */ + udphdr->chksum = 0x0000; + + /* Multicast Loop? */ +#if LWIP_MULTICAST_TX_OPTIONS + if (((pcb->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) && ip_addr_ismulticast(dst_ip)) { + q->flags |= PBUF_FLAG_MCASTLOOP; + } +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + + LWIP_DEBUGF(UDP_DEBUG, ("udp_send: sending datagram of length %"U16_F"\n", q->tot_len)); + +#if LWIP_UDPLITE + /* UDP Lite protocol? */ + if (pcb->flags & UDP_FLAGS_UDPLITE) { + u16_t chklen, chklen_hdr; + LWIP_DEBUGF(UDP_DEBUG, ("udp_send: UDP LITE packet length %"U16_F"\n", q->tot_len)); + /* set UDP message length in UDP header */ + chklen_hdr = chklen = pcb->chksum_len_tx; + if ((chklen < sizeof(struct udp_hdr)) || (chklen > q->tot_len)) { + if (chklen != 0) { + LWIP_DEBUGF(UDP_DEBUG, ("udp_send: UDP LITE pcb->chksum_len is illegal: %"U16_F"\n", chklen)); + } + /* For UDP-Lite, checksum length of 0 means checksum + over the complete packet. (See RFC 3828 chap. 3.1) + At least the UDP-Lite header must be covered by the + checksum, therefore, if chksum_len has an illegal + value, we generate the checksum over the complete + packet to be safe. */ + chklen_hdr = 0; + chklen = q->tot_len; + } + udphdr->len = lwip_htons(chklen_hdr); + /* calculate checksum */ +#if CHECKSUM_GEN_UDP + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_UDP) { +#if LWIP_CHECKSUM_ON_COPY + if (have_chksum) { + chklen = UDP_HLEN; + } +#endif /* LWIP_CHECKSUM_ON_COPY */ + udphdr->chksum = ip_chksum_pseudo_partial(q, IP_PROTO_UDPLITE, + q->tot_len, chklen, src_ip, dst_ip); +#if LWIP_CHECKSUM_ON_COPY + if (have_chksum) { + u32_t acc; + acc = udphdr->chksum + (u16_t)~(chksum); + udphdr->chksum = FOLD_U32T(acc); + } +#endif /* LWIP_CHECKSUM_ON_COPY */ + + /* chksum zero must become 0xffff, as zero means 'no checksum' */ + if (udphdr->chksum == 0x0000) { + udphdr->chksum = 0xffff; + } + } +#endif /* CHECKSUM_GEN_UDP */ + + ip_proto = IP_PROTO_UDPLITE; + } else +#endif /* LWIP_UDPLITE */ + { /* UDP */ + LWIP_DEBUGF(UDP_DEBUG, ("udp_send: UDP packet length %"U16_F"\n", q->tot_len)); + udphdr->len = lwip_htons(q->tot_len); + /* calculate checksum */ +#if CHECKSUM_GEN_UDP + IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_UDP) { + /* Checksum is mandatory over IPv6. */ + if (IP_IS_V6(dst_ip) || (pcb->flags & UDP_FLAGS_NOCHKSUM) == 0) { + u16_t udpchksum; +#if LWIP_CHECKSUM_ON_COPY + if (have_chksum) { + u32_t acc; + udpchksum = ip_chksum_pseudo_partial(q, IP_PROTO_UDP, + q->tot_len, UDP_HLEN, src_ip, dst_ip); + acc = udpchksum + (u16_t)~(chksum); + udpchksum = FOLD_U32T(acc); + } else +#endif /* LWIP_CHECKSUM_ON_COPY */ + { + udpchksum = ip_chksum_pseudo(q, IP_PROTO_UDP, q->tot_len, + src_ip, dst_ip); + } + + /* chksum zero must become 0xffff, as zero means 'no checksum' */ + if (udpchksum == 0x0000) { + udpchksum = 0xffff; + } + udphdr->chksum = udpchksum; + } + } +#endif /* CHECKSUM_GEN_UDP */ + ip_proto = IP_PROTO_UDP; + } + + /* Determine TTL to use */ +#if LWIP_MULTICAST_TX_OPTIONS + ttl = (ip_addr_ismulticast(dst_ip) ? udp_get_multicast_ttl(pcb) : pcb->ttl); +#else /* LWIP_MULTICAST_TX_OPTIONS */ + ttl = pcb->ttl; +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + + LWIP_DEBUGF(UDP_DEBUG, ("udp_send: UDP checksum 0x%04"X16_F"\n", udphdr->chksum)); + LWIP_DEBUGF(UDP_DEBUG, ("udp_send: ip_output_if (,,,,0x%02"X16_F",)\n", (u16_t)ip_proto)); + /* output to IP */ + NETIF_SET_HINTS(netif, &(pcb->netif_hints)); + err = ip_output_if_src(q, src_ip, dst_ip, ttl, pcb->tos, ip_proto, netif); + NETIF_RESET_HINTS(netif); + + /* @todo: must this be increased even if error occurred? */ + MIB2_STATS_INC(mib2.udpoutdatagrams); + + /* did we chain a separate header pbuf earlier? */ + if (q != p) { + /* free the header pbuf */ + pbuf_free(q); + q = NULL; + /* p is still referenced by the caller, and will live on */ + } + + UDP_STATS_INC(udp.xmit); + return err; +} + +/** + * @ingroup udp_raw + * Bind an UDP PCB. + * + * @param pcb UDP PCB to be bound with a local address ipaddr and port. + * @param ipaddr local IP address to bind with. Use IP_ANY_TYPE to + * bind to all local interfaces. + * @param port local UDP port to bind with. Use 0 to automatically bind + * to a random port between UDP_LOCAL_PORT_RANGE_START and + * UDP_LOCAL_PORT_RANGE_END. + * + * ipaddr & port are expected to be in the same byte order as in the pcb. + * + * @return lwIP error code. + * - ERR_OK. Successful. No error occurred. + * - ERR_USE. The specified ipaddr and port are already bound to by + * another UDP PCB. + * + * @see udp_disconnect() + */ +err_t +udp_bind(struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port) +{ + struct udp_pcb *ipcb; + u8_t rebind; +#if LWIP_IPV6 && LWIP_IPV6_SCOPES + ip_addr_t zoned_ipaddr; +#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ + + LWIP_ASSERT_CORE_LOCKED(); + +#if LWIP_IPV4 + /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ + if (ipaddr == NULL) { + ipaddr = IP4_ADDR_ANY; + } +#else /* LWIP_IPV4 */ + LWIP_ERROR("udp_bind: invalid ipaddr", ipaddr != NULL, return ERR_ARG); +#endif /* LWIP_IPV4 */ + + LWIP_ERROR("udp_bind: invalid pcb", pcb != NULL, return ERR_ARG); + + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_bind(ipaddr = ")); + ip_addr_debug_print(UDP_DEBUG | LWIP_DBG_TRACE, ipaddr); + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, (", port = %"U16_F")\n", port)); + + rebind = 0; + /* Check for double bind and rebind of the same pcb */ + for (ipcb = udp_pcbs; ipcb != NULL; ipcb = ipcb->next) { + /* is this UDP PCB already on active list? */ + if (pcb == ipcb) { + rebind = 1; + break; + } + } + +#if LWIP_IPV6 && LWIP_IPV6_SCOPES + /* If the given IP address should have a zone but doesn't, assign one now. + * This is legacy support: scope-aware callers should always provide properly + * zoned source addresses. Do the zone selection before the address-in-use + * check below; as such we have to make a temporary copy of the address. */ + if (IP_IS_V6(ipaddr) && ip6_addr_lacks_zone(ip_2_ip6(ipaddr), IP6_UNKNOWN)) { + ip_addr_copy(zoned_ipaddr, *ipaddr); + ip6_addr_select_zone(ip_2_ip6(&zoned_ipaddr), ip_2_ip6(&zoned_ipaddr)); + ipaddr = &zoned_ipaddr; + } +#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ + + /* no port specified? */ + if (port == 0) { + port = udp_new_port(); + if (port == 0) { + /* no more ports available in local range */ + LWIP_DEBUGF(UDP_DEBUG, ("udp_bind: out of free UDP ports\n")); + return ERR_USE; + } + } else { + for (ipcb = udp_pcbs; ipcb != NULL; ipcb = ipcb->next) { + if (pcb != ipcb) { + /* By default, we don't allow to bind to a port that any other udp + PCB is already bound to, unless *all* PCBs with that port have tha + REUSEADDR flag set. */ +#if SO_REUSE + if (!ip_get_option(pcb, SOF_REUSEADDR) || + !ip_get_option(ipcb, SOF_REUSEADDR)) +#endif /* SO_REUSE */ + { + /* port matches that of PCB in list and REUSEADDR not set -> reject */ + if ((ipcb->local_port == port) && + (((IP_GET_TYPE(&ipcb->local_ip) == IP_GET_TYPE(ipaddr)) && + /* IP address matches or any IP used? */ + (ip_addr_eq(&ipcb->local_ip, ipaddr) || + ip_addr_isany(ipaddr) || + ip_addr_isany(&ipcb->local_ip))) || + (IP_GET_TYPE(&ipcb->local_ip) == IPADDR_TYPE_ANY) || + (IP_GET_TYPE(ipaddr) == IPADDR_TYPE_ANY))) { + /* other PCB already binds to this local IP and port */ + LWIP_DEBUGF(UDP_DEBUG, + ("udp_bind: local port %"U16_F" already bound by another pcb\n", port)); + return ERR_USE; + } + } + } + } + } + + ip_addr_set_ipaddr(&pcb->local_ip, ipaddr); + + pcb->local_port = port; + mib2_udp_bind(pcb); + /* pcb not active yet? */ + if (rebind == 0) { + /* place the PCB on the active list if not already there */ + pcb->next = udp_pcbs; + udp_pcbs = pcb; + } + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("udp_bind: bound to ")); + ip_addr_debug_print_val(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, pcb->local_ip); + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, (", port %"U16_F")\n", pcb->local_port)); + return ERR_OK; +} + +/** + * @ingroup udp_raw + * Bind an UDP PCB to a specific netif. + * After calling this function, all packets received via this PCB + * are guaranteed to have come in via the specified netif, and all + * outgoing packets will go out via the specified netif. + * + * @param pcb UDP PCB to be bound. + * @param netif netif to bind udp pcb to. Can be NULL. + * + * @see udp_disconnect() + */ +void +udp_bind_netif(struct udp_pcb *pcb, const struct netif *netif) +{ + LWIP_ASSERT_CORE_LOCKED(); + + if (netif != NULL) { + pcb->netif_idx = netif_get_index(netif); + } else { + pcb->netif_idx = NETIF_NO_INDEX; + } +} + +/** + * @ingroup udp_raw + * Sets the remote end of the pcb. This function does not generate any + * network traffic, but only sets the remote address of the pcb. + * + * @param pcb UDP PCB to be connected with remote address ipaddr and port. + * @param ipaddr remote IP address to connect with. + * @param port remote UDP port to connect with. + * + * @return lwIP error code + * + * ipaddr & port are expected to be in the same byte order as in the pcb. + * + * The udp pcb is bound to a random local port if not already bound. + * + * @see udp_disconnect() + */ +err_t +udp_connect(struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port) +{ + struct udp_pcb *ipcb; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("udp_connect: invalid pcb", pcb != NULL, return ERR_ARG); + LWIP_ERROR("udp_connect: invalid ipaddr", ipaddr != NULL, return ERR_ARG); + + if (pcb->local_port == 0) { + err_t err = udp_bind(pcb, &pcb->local_ip, pcb->local_port); + if (err != ERR_OK) { + return err; + } + } + + ip_addr_set_ipaddr(&pcb->remote_ip, ipaddr); +#if LWIP_IPV6 && LWIP_IPV6_SCOPES + /* If the given IP address should have a zone but doesn't, assign one now, + * using the bound address to make a more informed decision when possible. */ + if (IP_IS_V6(&pcb->remote_ip) && + ip6_addr_lacks_zone(ip_2_ip6(&pcb->remote_ip), IP6_UNKNOWN)) { + ip6_addr_select_zone(ip_2_ip6(&pcb->remote_ip), ip_2_ip6(&pcb->local_ip)); + } +#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ + + pcb->remote_port = port; + pcb->flags |= UDP_FLAGS_CONNECTED; + + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("udp_connect: connected to ")); + ip_addr_debug_print_val(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, + pcb->remote_ip); + LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, (", port %"U16_F")\n", pcb->remote_port)); + + /* Insert UDP PCB into the list of active UDP PCBs. */ + for (ipcb = udp_pcbs; ipcb != NULL; ipcb = ipcb->next) { + if (pcb == ipcb) { + /* already on the list, just return */ + return ERR_OK; + } + } + /* PCB not yet on the list, add PCB now */ + pcb->next = udp_pcbs; + udp_pcbs = pcb; + return ERR_OK; +} + +/** + * @ingroup udp_raw + * Remove the remote end of the pcb. This function does not generate + * any network traffic, but only removes the remote address of the pcb. + * + * @param pcb the udp pcb to disconnect. + */ +void +udp_disconnect(struct udp_pcb *pcb) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("udp_disconnect: invalid pcb", pcb != NULL, return); + + /* reset remote address association */ +#if LWIP_IPV4 && LWIP_IPV6 + if (IP_IS_ANY_TYPE_VAL(pcb->local_ip)) { + ip_addr_copy(pcb->remote_ip, *IP_ANY_TYPE); + } else { +#endif + ip_addr_set_any(IP_IS_V6_VAL(pcb->remote_ip), &pcb->remote_ip); +#if LWIP_IPV4 && LWIP_IPV6 + } +#endif + pcb->remote_port = 0; + pcb->netif_idx = NETIF_NO_INDEX; + /* mark PCB as unconnected */ + udp_clear_flags(pcb, UDP_FLAGS_CONNECTED); +} + +/** + * @ingroup udp_raw + * Set a receive callback for a UDP PCB. + * This callback will be called when receiving a datagram for the pcb. + * + * @param pcb the pcb for which to set the recv callback + * @param recv function pointer of the callback function + * @param recv_arg additional argument to pass to the callback function + */ +void +udp_recv(struct udp_pcb *pcb, udp_recv_fn recv, void *recv_arg) +{ + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("udp_recv: invalid pcb", pcb != NULL, return); + + /* remember recv() callback and user data */ + pcb->recv = recv; + pcb->recv_arg = recv_arg; +} + +/** + * @ingroup udp_raw + * Removes and deallocates the pcb. + * + * @param pcb UDP PCB to be removed. The PCB is removed from the list of + * UDP PCB's and the data structure is freed from memory. + * + * @see udp_new() + */ +void +udp_remove(struct udp_pcb *pcb) +{ + struct udp_pcb *pcb2; + + LWIP_ASSERT_CORE_LOCKED(); + + LWIP_ERROR("udp_remove: invalid pcb", pcb != NULL, return); + + mib2_udp_unbind(pcb); + /* pcb to be removed is first in list? */ + if (udp_pcbs == pcb) { + /* make list start at 2nd pcb */ + udp_pcbs = udp_pcbs->next; + /* pcb not 1st in list */ + } else { + for (pcb2 = udp_pcbs; pcb2 != NULL; pcb2 = pcb2->next) { + /* find pcb in udp_pcbs list */ + if (pcb2->next != NULL && pcb2->next == pcb) { + /* remove pcb from list */ + pcb2->next = pcb->next; + break; + } + } + } + memp_free(MEMP_UDP_PCB, pcb); +} + +/** + * @ingroup udp_raw + * Creates a new UDP pcb which can be used for UDP communication. The + * pcb is not active until it has either been bound to a local address + * or connected to a remote address. + * @see MEMP_NUM_UDP_PCB + * + * @return The UDP PCB which was created. NULL if the PCB data structure + * could not be allocated. + * + * @see udp_remove() + */ +struct udp_pcb * +udp_new(void) +{ + struct udp_pcb *pcb; + + LWIP_ASSERT_CORE_LOCKED(); + + pcb = (struct udp_pcb *)memp_malloc(MEMP_UDP_PCB); + /* could allocate UDP PCB? */ + if (pcb != NULL) { + /* UDP Lite: by initializing to all zeroes, chksum_len is set to 0 + * which means checksum is generated over the whole datagram per default + * (recommended as default by RFC 3828). */ + /* initialize PCB to all zeroes */ + memset(pcb, 0, sizeof(struct udp_pcb)); + pcb->ttl = UDP_TTL; +#if LWIP_MULTICAST_TX_OPTIONS + udp_set_multicast_ttl(pcb, UDP_TTL); +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + } + return pcb; +} + +/** + * @ingroup udp_raw + * Create a UDP PCB for specific IP type. + * The pcb is not active until it has either been bound to a local address + * or connected to a remote address. + * @see MEMP_NUM_UDP_PCB + * + * @param type IP address type, see @ref lwip_ip_addr_type definitions. + * If you want to listen to IPv4 and IPv6 (dual-stack) packets, + * supply @ref IPADDR_TYPE_ANY as argument and bind to @ref IP_ANY_TYPE. + * @return The UDP PCB which was created. NULL if the PCB data structure + * could not be allocated. + * + * @see udp_remove() + */ +struct udp_pcb * +udp_new_ip_type(u8_t type) +{ + struct udp_pcb *pcb; + + LWIP_ASSERT_CORE_LOCKED(); + + pcb = udp_new(); +#if LWIP_IPV4 && LWIP_IPV6 + if (pcb != NULL) { + IP_SET_TYPE_VAL(pcb->local_ip, type); + IP_SET_TYPE_VAL(pcb->remote_ip, type); + } +#else + LWIP_UNUSED_ARG(type); +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + return pcb; +} + +/** This function is called from netif.c when address is changed + * + * @param old_addr IP address of the netif before change + * @param new_addr IP address of the netif after change + */ +void udp_netif_ip_addr_changed(const ip_addr_t *old_addr, const ip_addr_t *new_addr) +{ + struct udp_pcb *upcb; + + if (!ip_addr_isany(old_addr) && !ip_addr_isany(new_addr)) { + for (upcb = udp_pcbs; upcb != NULL; upcb = upcb->next) { + /* PCB bound to current local interface address? */ + if (ip_addr_eq(&upcb->local_ip, old_addr)) { + /* The PCB is bound to the old ipaddr and + * is set to bound to the new one instead */ + ip_addr_copy(upcb->local_ip, *new_addr); + } + } + } +} + +#if UDP_DEBUG +/** + * Print UDP header information for debug purposes. + * + * @param udphdr pointer to the udp header in memory. + */ +void +udp_debug_print(struct udp_hdr *udphdr) +{ + LWIP_DEBUGF(UDP_DEBUG, ("UDP header:\n")); + LWIP_DEBUGF(UDP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(UDP_DEBUG, ("| %5"U16_F" | %5"U16_F" | (src port, dest port)\n", + lwip_ntohs(udphdr->src), lwip_ntohs(udphdr->dest))); + LWIP_DEBUGF(UDP_DEBUG, ("+-------------------------------+\n")); + LWIP_DEBUGF(UDP_DEBUG, ("| %5"U16_F" | 0x%04"X16_F" | (len, chksum)\n", + lwip_ntohs(udphdr->len), lwip_ntohs(udphdr->chksum))); + LWIP_DEBUGF(UDP_DEBUG, ("+-------------------------------+\n")); +} +#endif /* UDP_DEBUG */ + +#endif /* LWIP_UDP */ diff --git a/middleware/lwip/src/include/compat/posix/arpa/inet.h b/middleware/lwip/src/include/compat/posix/arpa/inet.h new file mode 100644 index 0000000..0ed9baf --- /dev/null +++ b/middleware/lwip/src/include/compat/posix/arpa/inet.h @@ -0,0 +1,33 @@ +/** + * @file + * This file is a posix wrapper for lwip/sockets.h. + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "lwip/sockets.h" diff --git a/middleware/lwip/src/include/compat/posix/net/if.h b/middleware/lwip/src/include/compat/posix/net/if.h new file mode 100644 index 0000000..8b8e481 --- /dev/null +++ b/middleware/lwip/src/include/compat/posix/net/if.h @@ -0,0 +1,36 @@ +/** + * @file + * This file is a posix wrapper for lwip/if_api.h. + */ + +/* + * Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "lwip/if_api.h" diff --git a/middleware/lwip/src/include/compat/posix/netdb.h b/middleware/lwip/src/include/compat/posix/netdb.h new file mode 100644 index 0000000..12d4c7f --- /dev/null +++ b/middleware/lwip/src/include/compat/posix/netdb.h @@ -0,0 +1,33 @@ +/** + * @file + * This file is a posix wrapper for lwip/netdb.h. + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "lwip/netdb.h" diff --git a/middleware/lwip/src/include/compat/posix/sys/socket.h b/middleware/lwip/src/include/compat/posix/sys/socket.h new file mode 100644 index 0000000..0ed9baf --- /dev/null +++ b/middleware/lwip/src/include/compat/posix/sys/socket.h @@ -0,0 +1,33 @@ +/** + * @file + * This file is a posix wrapper for lwip/sockets.h. + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "lwip/sockets.h" diff --git a/middleware/lwip/src/include/compat/stdc/errno.h b/middleware/lwip/src/include/compat/stdc/errno.h new file mode 100644 index 0000000..98a9aec --- /dev/null +++ b/middleware/lwip/src/include/compat/stdc/errno.h @@ -0,0 +1,33 @@ +/** + * @file + * This file is a posix/stdc wrapper for lwip/errno.h. + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "lwip/errno.h" diff --git a/middleware/lwip/src/include/lwip/acd.h b/middleware/lwip/src/include/lwip/acd.h new file mode 100644 index 0000000..a5f3658 --- /dev/null +++ b/middleware/lwip/src/include/lwip/acd.h @@ -0,0 +1,114 @@ +/** + * @file + * + * ACD IPv4 Address Conflict Detection + */ + +/* + * + * Copyright (c) 2007 Dominik Spies + * Copyright (c) 2018 Jasper Verschueren + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Jasper Verschueren + * Author: Dominik Spies + */ + +#ifndef LWIP_HDR_ACD_H +#define LWIP_HDR_ACD_H + +#include "lwip/opt.h" + +/* don't build if not configured for use in lwipopts.h */ +#if LWIP_IPV4 && LWIP_ACD + +#include "lwip/netif.h" +#include "lwip/etharp.h" +#include "lwip/prot/acd.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** ACD Timing + * ACD_TMR_INTERVAL msecs, I recommend a value of 100. + * The value must divide 1000 with a remainder almost 0. Possible values are + * 1000, 500, 333, 250, 200, 166, 142, 125, 111, 100 .... + */ +#define ACD_TMR_INTERVAL 100 + +/** + * Callback function: Handle conflict information from ACD module + * + * @param netif network interface to handle conflict information on + * @param state acd_callback_enum_t + */ +typedef void (*acd_conflict_callback_t)(struct netif *netif, acd_callback_enum_t state); + +/** ACD state information per netif */ +struct acd +{ + /** next acd module */ + struct acd *next; + /** the currently selected, probed, announced or used IP-Address */ + ip4_addr_t ipaddr; + /** current ACD state machine state */ + acd_state_enum_t state; + /** sent number of probes or announces, dependent on state */ + u8_t sent_num; + /** ticks to wait, tick is ACD_TMR_INTERVAL long */ + u16_t ttw; + /** ticks until a conflict can again be solved by defending */ + u8_t lastconflict; + /** total number of probed/used IP-Addresses that resulted in a conflict */ + u8_t num_conflicts; + /** callback function -> let's the acd user know if the address is good or + if a conflict is detected */ + acd_conflict_callback_t acd_conflict_callback; +}; + +err_t acd_add(struct netif *netif, struct acd *acd, + acd_conflict_callback_t acd_conflict_callback); + +err_t acd_start(struct netif *netif, struct acd *acd, ip4_addr_t ipaddr); + +err_t acd_stop(struct acd *acd); + +void acd_arp_reply(struct netif *netif, struct etharp_hdr *hdr); + +void acd_tmr(void); + +void acd_network_changed_link_down(struct netif *netif); + +void acd_netif_ip_addr_changed(struct netif *netif, const ip_addr_t *old_addr, + const ip_addr_t *new_addr); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV4 && LWIP_ACD */ + +#endif /* LWIP_HDR_ACD_H */ diff --git a/middleware/lwip/src/include/lwip/altcp.h b/middleware/lwip/src/include/lwip/altcp.h new file mode 100644 index 0000000..b63f153 --- /dev/null +++ b/middleware/lwip/src/include/lwip/altcp.h @@ -0,0 +1,206 @@ +/** + * @file + * Application layered TCP connection API (to be used from TCPIP thread) + * + * This file contains the generic API. + * For more details see @ref altcp_api. + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_ALTCP_H +#define LWIP_HDR_ALTCP_H + +#include "lwip/opt.h" + +#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/tcpbase.h" +#include "lwip/err.h" +#include "lwip/pbuf.h" +#include "lwip/ip_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct altcp_pcb; +struct altcp_functions; + +typedef err_t (*altcp_accept_fn)(void *arg, struct altcp_pcb *new_conn, err_t err); +typedef err_t (*altcp_connected_fn)(void *arg, struct altcp_pcb *conn, err_t err); +typedef err_t (*altcp_recv_fn)(void *arg, struct altcp_pcb *conn, struct pbuf *p, err_t err); +typedef err_t (*altcp_sent_fn)(void *arg, struct altcp_pcb *conn, u16_t len); +typedef err_t (*altcp_poll_fn)(void *arg, struct altcp_pcb *conn); +typedef void (*altcp_err_fn)(void *arg, err_t err); + +typedef struct altcp_pcb* (*altcp_new_fn)(void *arg, u8_t ip_type); + +struct altcp_pcb { + const struct altcp_functions *fns; + struct altcp_pcb *inner_conn; + void *arg; + void *state; + /* application callbacks */ + altcp_accept_fn accept; + altcp_connected_fn connected; + altcp_recv_fn recv; + altcp_sent_fn sent; + altcp_poll_fn poll; + altcp_err_fn err; + u8_t pollinterval; +}; + +/** @ingroup altcp */ +typedef struct altcp_allocator_s { + /** Allocator function */ + altcp_new_fn alloc; + /** Argument to allocator function */ + void *arg; +} altcp_allocator_t; + +struct altcp_pcb *altcp_new(altcp_allocator_t *allocator); +struct altcp_pcb *altcp_new_ip6(altcp_allocator_t *allocator); +struct altcp_pcb *altcp_new_ip_type(altcp_allocator_t *allocator, u8_t ip_type); + +void altcp_arg(struct altcp_pcb *conn, void *arg); +void altcp_accept(struct altcp_pcb *conn, altcp_accept_fn accept); +void altcp_recv(struct altcp_pcb *conn, altcp_recv_fn recv); +void altcp_sent(struct altcp_pcb *conn, altcp_sent_fn sent); +void altcp_poll(struct altcp_pcb *conn, altcp_poll_fn poll, u8_t interval); +void altcp_err(struct altcp_pcb *conn, altcp_err_fn err); + +void altcp_recved(struct altcp_pcb *conn, u16_t len); +err_t altcp_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port); +err_t altcp_connect(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected); + +/* return conn for source code compatibility to tcp callback API only */ +struct altcp_pcb *altcp_listen_with_backlog_and_err(struct altcp_pcb *conn, u8_t backlog, err_t *err); +#define altcp_listen_with_backlog(conn, backlog) altcp_listen_with_backlog_and_err(conn, backlog, NULL) +/** @ingroup altcp */ +#define altcp_listen(conn) altcp_listen_with_backlog_and_err(conn, TCP_DEFAULT_LISTEN_BACKLOG, NULL) + +void altcp_abort(struct altcp_pcb *conn); +err_t altcp_close(struct altcp_pcb *conn); +err_t altcp_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx); + +err_t altcp_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags); +err_t altcp_output(struct altcp_pcb *conn); + +u16_t altcp_mss(struct altcp_pcb *conn); +u16_t altcp_sndbuf(struct altcp_pcb *conn); +u16_t altcp_sndqueuelen(struct altcp_pcb *conn); +void altcp_nagle_disable(struct altcp_pcb *conn); +void altcp_nagle_enable(struct altcp_pcb *conn); +int altcp_nagle_disabled(struct altcp_pcb *conn); + +void altcp_setprio(struct altcp_pcb *conn, u8_t prio); + +err_t altcp_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port); +ip_addr_t *altcp_get_ip(struct altcp_pcb *conn, int local); +u16_t altcp_get_port(struct altcp_pcb *conn, int local); + +#if LWIP_TCP_KEEPALIVE +void altcp_keepalive_disable(struct altcp_pcb *conn); +void altcp_keepalive_enable(struct altcp_pcb *conn, u32_t idle, u32_t intvl, u32_t count); +#endif + +#ifdef LWIP_DEBUG +enum tcp_state altcp_dbg_get_tcp_state(struct altcp_pcb *conn); +#endif + +#ifdef __cplusplus +} +#endif + +#else /* LWIP_ALTCP */ + +/* ALTCP disabled, define everything to link against tcp callback API (e.g. to get a small non-ssl httpd) */ + +#include "lwip/tcp.h" + +#define altcp_accept_fn tcp_accept_fn +#define altcp_connected_fn tcp_connected_fn +#define altcp_recv_fn tcp_recv_fn +#define altcp_sent_fn tcp_sent_fn +#define altcp_poll_fn tcp_poll_fn +#define altcp_err_fn tcp_err_fn + +#define altcp_pcb tcp_pcb +#define altcp_tcp_new_ip_type tcp_new_ip_type +#define altcp_tcp_new tcp_new +#define altcp_tcp_new_ip6 tcp_new_ip6 + +#define altcp_new(allocator) tcp_new() +#define altcp_new_ip6(allocator) tcp_new_ip6() +#define altcp_new_ip_type(allocator, ip_type) tcp_new_ip_type(ip_type) + +#define altcp_arg tcp_arg +#define altcp_accept tcp_accept +#define altcp_recv tcp_recv +#define altcp_sent tcp_sent +#define altcp_poll tcp_poll +#define altcp_err tcp_err + +#define altcp_recved tcp_recved +#define altcp_bind tcp_bind +#define altcp_connect tcp_connect + +#define altcp_listen_with_backlog_and_err tcp_listen_with_backlog_and_err +#define altcp_listen_with_backlog tcp_listen_with_backlog +#define altcp_listen tcp_listen + +#define altcp_abort tcp_abort +#define altcp_close tcp_close +#define altcp_shutdown tcp_shutdown + +#define altcp_write tcp_write +#define altcp_output tcp_output + +#define altcp_mss tcp_mss +#define altcp_sndbuf tcp_sndbuf +#define altcp_sndqueuelen tcp_sndqueuelen +#define altcp_nagle_disable tcp_nagle_disable +#define altcp_nagle_enable tcp_nagle_enable +#define altcp_nagle_disabled tcp_nagle_disabled +#define altcp_setprio tcp_setprio + +#define altcp_get_tcp_addrinfo tcp_get_tcp_addrinfo +#define altcp_get_ip(pcb, local) ((local) ? (&(pcb)->local_ip) : (&(pcb)->remote_ip)) + +#ifdef LWIP_DEBUG +#define altcp_dbg_get_tcp_state tcp_dbg_get_tcp_state +#endif + +#endif /* LWIP_ALTCP */ + +#endif /* LWIP_HDR_ALTCP_H */ diff --git a/middleware/lwip/src/include/lwip/altcp_tcp.h b/middleware/lwip/src/include/lwip/altcp_tcp.h new file mode 100644 index 0000000..ca47379 --- /dev/null +++ b/middleware/lwip/src/include/lwip/altcp_tcp.h @@ -0,0 +1,72 @@ +/** + * @file + * Application layered TCP connection API (to be used from TCPIP thread)
+ * This interface mimics the tcp callback API to the application while preventing + * direct linking (much like virtual functions). + * This way, an application can make use of other application layer protocols + * on top of TCP without knowing the details (e.g. TLS, proxy connection). + * + * This file contains the base implementation calling into tcp. + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_ALTCP_TCP_H +#define LWIP_HDR_ALTCP_TCP_H + +#include "lwip/opt.h" + +#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/altcp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct altcp_pcb *altcp_tcp_new_ip_type(u8_t ip_type); + +#define altcp_tcp_new() altcp_tcp_new_ip_type(IPADDR_TYPE_V4) +#define altcp_tcp_new_ip6() altcp_tcp_new_ip_type(IPADDR_TYPE_V6) + +struct altcp_pcb *altcp_tcp_alloc(void *arg, u8_t ip_type); + +struct tcp_pcb; +struct altcp_pcb *altcp_tcp_wrap(struct tcp_pcb *tpcb); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_ALTCP */ + +#endif /* LWIP_HDR_ALTCP_TCP_H */ diff --git a/middleware/lwip/src/include/lwip/altcp_tls.h b/middleware/lwip/src/include/lwip/altcp_tls.h new file mode 100644 index 0000000..fcb784d --- /dev/null +++ b/middleware/lwip/src/include/lwip/altcp_tls.h @@ -0,0 +1,196 @@ +/** + * @file + * Application layered TCP/TLS connection API (to be used from TCPIP thread) + * + * @defgroup altcp_tls TLS layer + * @ingroup altcp + * This file contains function prototypes for a TLS layer. + * A port to ARM mbedtls is provided in the apps/ tree + * (LWIP_ALTCP_TLS_MBEDTLS option). + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_ALTCP_TLS_H +#define LWIP_HDR_ALTCP_TLS_H + +#include "lwip/opt.h" + +#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ + +#if LWIP_ALTCP_TLS + +#include "lwip/altcp.h" + +/* check if mbedtls port is enabled */ +#include "lwip/apps/altcp_tls_mbedtls_opts.h" +/* allow session structure to be fully defined when using mbedtls port */ +#if LWIP_ALTCP_TLS_MBEDTLS +#include "mbedtls/ssl.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/** @ingroup altcp_tls + * ALTCP_TLS configuration handle, content depends on port (e.g. mbedtls) + */ +struct altcp_tls_config; + +/** @ingroup altcp_tls + * Create an ALTCP_TLS server configuration handle prepared for multiple certificates + */ +struct altcp_tls_config *altcp_tls_create_config_server(u8_t cert_count); + +/** @ingroup altcp_tls + * Add a certificate to an ALTCP_TLS server configuration handle + */ +err_t altcp_tls_config_server_add_privkey_cert(struct altcp_tls_config *config, + const u8_t *privkey, size_t privkey_len, + const u8_t *privkey_pass, size_t privkey_pass_len, + const u8_t *cert, size_t cert_len); + +/** @ingroup altcp_tls + * Create an ALTCP_TLS server configuration handle with one certificate + * (short version of calling @ref altcp_tls_create_config_server and + * @ref altcp_tls_config_server_add_privkey_cert) + */ +struct altcp_tls_config *altcp_tls_create_config_server_privkey_cert(const u8_t *privkey, size_t privkey_len, + const u8_t *privkey_pass, size_t privkey_pass_len, + const u8_t *cert, size_t cert_len); + +/** @ingroup altcp_tls + * Create an ALTCP_TLS client configuration handle + */ +struct altcp_tls_config *altcp_tls_create_config_client(const u8_t *cert, size_t cert_len); + +/** @ingroup altcp_tls + * Create an ALTCP_TLS client configuration handle with two-way server/client authentication + */ +struct altcp_tls_config *altcp_tls_create_config_client_2wayauth(const u8_t *ca, size_t ca_len, const u8_t *privkey, size_t privkey_len, + const u8_t *privkey_pass, size_t privkey_pass_len, + const u8_t *cert, size_t cert_len); + +/** @ingroup altcp_tls + * Configure ALPN TLS extension + * Example:
+ * static const char *g_alpn_protocols[] = { "x-amzn-mqtt-ca", NULL };
+ * tls_config = altcp_tls_create_config_client(ca, ca_len);
+ * altcp_tls_conf_alpn_protocols(tls_config, g_alpn_protocols);
+ */ +int altcp_tls_configure_alpn_protocols(struct altcp_tls_config *conf, const char **protos); + +/** @ingroup altcp_tls + * Free an ALTCP_TLS configuration handle + */ +void altcp_tls_free_config(struct altcp_tls_config *conf); + +/** @ingroup altcp_tls + * Free an ALTCP_TLS global entropy instance. + * All ALTCP_TLS configuration are linked to one altcp_tls_entropy_rng structure + * that handle an unique system entropy & ctr_drbg instance. + * This function allow application to free this altcp_tls_entropy_rng structure + * when all configuration referencing it were destroyed. + * This function does nothing if some ALTCP_TLS configuration handle are still + * active. + */ +void altcp_tls_free_entropy(void); + +/** @ingroup altcp_tls + * Create new ALTCP_TLS layer wrapping an existing pcb as inner connection (e.g. TLS over TCP) + */ +struct altcp_pcb *altcp_tls_wrap(struct altcp_tls_config *config, struct altcp_pcb *inner_pcb); + +/** @ingroup altcp_tls + * Create new ALTCP_TLS pcb and its inner tcp pcb + */ +struct altcp_pcb *altcp_tls_new(struct altcp_tls_config *config, u8_t ip_type); + +/** @ingroup altcp_tls + * Create new ALTCP_TLS layer pcb and its inner tcp pcb. + * Same as @ref altcp_tls_new but this allocator function fits to + * @ref altcp_allocator_t / @ref altcp_new.
+ 'arg' must contain a struct altcp_tls_config *. + */ +struct altcp_pcb *altcp_tls_alloc(void *arg, u8_t ip_type); + +/** @ingroup altcp_tls + * Return pointer to internal TLS context so application can tweak it. + * Real type depends on port (e.g. mbedtls) + */ +void *altcp_tls_context(struct altcp_pcb *conn); + +/** @ingroup altcp_tls + * ALTCP_TLS session handle, content depends on port (e.g. mbedtls) + */ +struct altcp_tls_session +#if LWIP_ALTCP_TLS_MBEDTLS +{ + mbedtls_ssl_session data; +} +#endif +; + +/** @ingroup altcp_tls + * Initialise a TLS session buffer. + * Real type depends on port (e.g. mbedtls use mbedtls_ssl_session) + */ +void altcp_tls_init_session(struct altcp_tls_session *dest); + +/** @ingroup altcp_tls + * Save current connected session to reuse it later. Should be called after altcp_connect() succeeded. + * Return error if saving session fail. + * Real type depends on port (e.g. mbedtls use mbedtls_ssl_session) + */ +err_t altcp_tls_get_session(struct altcp_pcb *conn, struct altcp_tls_session *dest); + +/** @ingroup altcp_tls + * Restore a previously saved session. Must be called before altcp_connect(). + * Return error if cannot restore session. + * Real type depends on port (e.g. mbedtls use mbedtls_ssl_session) + */ +err_t altcp_tls_set_session(struct altcp_pcb *conn, struct altcp_tls_session *from); + +/** @ingroup altcp_tls + * Free allocated data inside a TLS session buffer. + * Real type depends on port (e.g. mbedtls use mbedtls_ssl_session) + */ +void altcp_tls_free_session(struct altcp_tls_session *dest); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_ALTCP_TLS */ +#endif /* LWIP_ALTCP */ +#endif /* LWIP_HDR_ALTCP_TLS_H */ diff --git a/middleware/lwip/src/include/lwip/api.h b/middleware/lwip/src/include/lwip/api.h new file mode 100644 index 0000000..be8c22a --- /dev/null +++ b/middleware/lwip/src/include/lwip/api.h @@ -0,0 +1,434 @@ +/** + * @file + * netconn API (to be used from non-TCPIP threads) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_API_H +#define LWIP_HDR_API_H + +#include "lwip/opt.h" + +#if LWIP_NETCONN || LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ +/* Note: Netconn API is always available when sockets are enabled - + * sockets are implemented on top of them */ + +#include "lwip/arch.h" +#include "lwip/netbuf.h" +#include "lwip/sys.h" +#include "lwip/ip_addr.h" +#include "lwip/err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Throughout this file, IP addresses and port numbers are expected to be in + * the same byte order as in the corresponding pcb. + */ + +/* Flags for netconn_write (u8_t) */ +#define NETCONN_NOFLAG 0x00 +#define NETCONN_NOCOPY 0x00 /* Only for source code compatibility */ +#define NETCONN_COPY 0x01 +#define NETCONN_MORE 0x02 +#define NETCONN_DONTBLOCK 0x04 +#define NETCONN_NOAUTORCVD 0x08 /* prevent netconn_recv_data_tcp() from updating the tcp window - must be done manually via netconn_tcp_recvd() */ +#define NETCONN_NOFIN 0x10 /* upper layer already received data, leave FIN in queue until called again */ + +/* Flags for struct netconn.flags (u8_t) */ +/** This netconn had an error, don't block on recvmbox/acceptmbox any more */ +#define NETCONN_FLAG_MBOXCLOSED 0x01 +/** Should this netconn avoid blocking? */ +#define NETCONN_FLAG_NON_BLOCKING 0x02 +/** Was the last connect action a non-blocking one? */ +#define NETCONN_FLAG_IN_NONBLOCKING_CONNECT 0x04 +#if LWIP_NETCONN_FULLDUPLEX + /** The mbox of this netconn is being deallocated, don't use it anymore */ +#define NETCONN_FLAG_MBOXINVALID 0x08 +#endif /* LWIP_NETCONN_FULLDUPLEX */ +/** If a nonblocking write has been rejected before, poll_tcp needs to + check if the netconn is writable again */ +#define NETCONN_FLAG_CHECK_WRITESPACE 0x10 +#if LWIP_IPV6 +/** If this flag is set then only IPv6 communication is allowed on the + netconn. As per RFC#3493 this features defaults to OFF allowing + dual-stack usage by default. */ +#define NETCONN_FLAG_IPV6_V6ONLY 0x20 +#endif /* LWIP_IPV6 */ +#if LWIP_NETBUF_RECVINFO +/** Received packet info will be recorded for this netconn */ +#define NETCONN_FLAG_PKTINFO 0x40 +#endif /* LWIP_NETBUF_RECVINFO */ +/** A FIN has been received but not passed to the application yet */ +#define NETCONN_FIN_RX_PENDING 0x80 + +/* Helpers to process several netconn_types by the same code */ +#define NETCONNTYPE_GROUP(t) ((t)&0xF0) +#define NETCONNTYPE_DATAGRAM(t) ((t)&0xE0) +#if LWIP_IPV6 +#define NETCONN_TYPE_IPV6 0x08 +#define NETCONNTYPE_ISIPV6(t) (((t)&NETCONN_TYPE_IPV6) != 0) +#define NETCONNTYPE_ISUDPLITE(t) (((t)&0xF3) == NETCONN_UDPLITE) +#define NETCONNTYPE_ISUDPNOCHKSUM(t) (((t)&0xF3) == NETCONN_UDPNOCHKSUM) +#else /* LWIP_IPV6 */ +#define NETCONNTYPE_ISIPV6(t) (0) +#define NETCONNTYPE_ISUDPLITE(t) ((t) == NETCONN_UDPLITE) +#define NETCONNTYPE_ISUDPNOCHKSUM(t) ((t) == NETCONN_UDPNOCHKSUM) +#endif /* LWIP_IPV6 */ + +/** @ingroup netconn_common + * Protocol family and type of the netconn + */ +enum netconn_type { + NETCONN_INVALID = 0, + /** TCP IPv4 */ + NETCONN_TCP = 0x10, +#if LWIP_IPV6 + /** TCP IPv6 */ + NETCONN_TCP_IPV6 = NETCONN_TCP | NETCONN_TYPE_IPV6 /* 0x18 */, +#endif /* LWIP_IPV6 */ + /** UDP IPv4 */ + NETCONN_UDP = 0x20, + /** UDP IPv4 lite */ + NETCONN_UDPLITE = 0x21, + /** UDP IPv4 no checksum */ + NETCONN_UDPNOCHKSUM = 0x22, + +#if LWIP_IPV6 + /** UDP IPv6 (dual-stack by default, unless you call @ref netconn_set_ipv6only) */ + NETCONN_UDP_IPV6 = NETCONN_UDP | NETCONN_TYPE_IPV6 /* 0x28 */, + /** UDP IPv6 lite (dual-stack by default, unless you call @ref netconn_set_ipv6only) */ + NETCONN_UDPLITE_IPV6 = NETCONN_UDPLITE | NETCONN_TYPE_IPV6 /* 0x29 */, + /** UDP IPv6 no checksum (dual-stack by default, unless you call @ref netconn_set_ipv6only) */ + NETCONN_UDPNOCHKSUM_IPV6 = NETCONN_UDPNOCHKSUM | NETCONN_TYPE_IPV6 /* 0x2a */, +#endif /* LWIP_IPV6 */ + + /** Raw connection IPv4 */ + NETCONN_RAW = 0x40 +#if LWIP_IPV6 + /** Raw connection IPv6 (dual-stack by default, unless you call @ref netconn_set_ipv6only) */ + , NETCONN_RAW_IPV6 = NETCONN_RAW | NETCONN_TYPE_IPV6 /* 0x48 */ +#endif /* LWIP_IPV6 */ +}; + +/** Current state of the netconn. Non-TCP netconns are always + * in state NETCONN_NONE! */ +enum netconn_state { + NETCONN_NONE, + NETCONN_WRITE, + NETCONN_LISTEN, + NETCONN_CONNECT, + NETCONN_CLOSE +}; + +/** Used to inform the callback function about changes + * + * Event explanation: + * + * In the netconn implementation, there are three ways to block a client: + * + * - accept mbox (sys_arch_mbox_fetch(&conn->acceptmbox, &accept_ptr, 0); in netconn_accept()) + * - receive mbox (sys_arch_mbox_fetch(&conn->recvmbox, &buf, 0); in netconn_recv_data()) + * - send queue is full (sys_arch_sem_wait(LWIP_API_MSG_SEM(msg), 0); in lwip_netconn_do_write()) + * + * The events have to be seen as events signaling the state of these mboxes/semaphores. For non-blocking + * connections, you need to know in advance whether a call to a netconn function call would block or not, + * and these events tell you about that. + * + * RCVPLUS events say: Safe to perform a potentially blocking call call once more. + * They are counted in sockets - three RCVPLUS events for accept mbox means you are safe + * to call netconn_accept 3 times without being blocked. + * Same thing for receive mbox. + * + * RCVMINUS events say: Your call to to a possibly blocking function is "acknowledged". + * Socket implementation decrements the counter. + * + * For TX, there is no need to count, its merely a flag. SENDPLUS means you may send something. + * SENDPLUS occurs when enough data was delivered to peer so netconn_send() can be called again. + * A SENDMINUS event occurs when the next call to a netconn_send() would be blocking. + */ +enum netconn_evt { + NETCONN_EVT_RCVPLUS, + NETCONN_EVT_RCVMINUS, + NETCONN_EVT_SENDPLUS, + NETCONN_EVT_SENDMINUS, + NETCONN_EVT_ERROR +}; + +#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) +/** Used for netconn_join_leave_group() */ +enum netconn_igmp { + NETCONN_JOIN, + NETCONN_LEAVE +}; +#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */ + +#if LWIP_DNS +/* Used for netconn_gethostbyname_addrtype(), these should match the DNS_ADDRTYPE defines in dns.h */ +#define NETCONN_DNS_DEFAULT NETCONN_DNS_IPV4_IPV6 +#define NETCONN_DNS_IPV4 0 +#define NETCONN_DNS_IPV6 1 +#define NETCONN_DNS_IPV4_IPV6 2 /* try to resolve IPv4 first, try IPv6 if IPv4 fails only */ +#define NETCONN_DNS_IPV6_IPV4 3 /* try to resolve IPv6 first, try IPv4 if IPv6 fails only */ +#endif /* LWIP_DNS */ + +/* forward-declare some structs to avoid to include their headers */ +struct ip_pcb; +struct tcp_pcb; +struct udp_pcb; +struct raw_pcb; +struct netconn; +struct api_msg; + +/** A callback prototype to inform about events for a netconn */ +typedef void (* netconn_callback)(struct netconn *, enum netconn_evt, u16_t len); + +/** A netconn descriptor */ +struct netconn { + /** type of the netconn (TCP, UDP or RAW) */ + enum netconn_type type; + /** current state of the netconn */ + enum netconn_state state; + /** the lwIP internal protocol control block */ + union { + struct ip_pcb *ip; + struct tcp_pcb *tcp; + struct udp_pcb *udp; + struct raw_pcb *raw; + } pcb; + /** the last asynchronous unreported error this netconn had */ + err_t pending_err; +#if !LWIP_NETCONN_SEM_PER_THREAD + /** sem that is used to synchronously execute functions in the core context */ + sys_sem_t op_completed; +#endif + /** mbox where received packets are stored until they are fetched + by the netconn application thread (can grow quite big) */ + sys_mbox_t recvmbox; +#if LWIP_TCP + /** mbox where new connections are stored until processed + by the application thread */ + sys_mbox_t acceptmbox; +#endif /* LWIP_TCP */ +#if LWIP_NETCONN_FULLDUPLEX + /** number of threads waiting on an mbox. This is required to unblock + all threads when closing while threads are waiting. */ + int mbox_threads_waiting; +#endif + union { + int socket; + void *ptr; + } callback_arg; +#if LWIP_SO_SNDTIMEO + /** timeout to wait for sending data (which means enqueueing data for sending + in internal buffers) in milliseconds */ + s32_t send_timeout; +#endif /* LWIP_SO_RCVTIMEO */ +#if LWIP_SO_RCVTIMEO + /** timeout in milliseconds to wait for new data to be received + (or connections to arrive for listening netconns) */ + u32_t recv_timeout; +#endif /* LWIP_SO_RCVTIMEO */ +#if LWIP_SO_RCVBUF + /** maximum amount of bytes queued in recvmbox + not used for TCP: adjust TCP_WND instead! */ + int recv_bufsize; + /** number of bytes currently in recvmbox to be received, + tested against recv_bufsize to limit bytes on recvmbox + for UDP and RAW, used for FIONREAD */ + int recv_avail; +#endif /* LWIP_SO_RCVBUF */ +#if LWIP_SO_LINGER + /** values <0 mean linger is disabled, values > 0 are seconds to linger */ + s16_t linger; +#endif /* LWIP_SO_LINGER */ + /** flags holding more netconn-internal state, see NETCONN_FLAG_* defines */ + u8_t flags; +#if LWIP_TCP + /** TCP: when data passed to netconn_write doesn't fit into the send buffer, + this temporarily stores the message. + Also used during connect and close. */ + struct api_msg *current_msg; +#endif /* LWIP_TCP */ + /** A callback function that is informed about events for this netconn */ + netconn_callback callback; +}; + +/** This vector type is passed to @ref netconn_write_vectors_partly to send + * multiple buffers at once. + * ATTENTION: This type has to directly map struct iovec since one is casted + * into the other! + */ +struct netvector { + /** pointer to the application buffer that contains the data to send */ + const void *ptr; + /** size of the application data to send */ + size_t len; +}; + +/** Register an Network connection event */ +#define API_EVENT(c,e,l) if (c->callback) { \ + (*c->callback)(c, e, l); \ + } + +/* Network connection functions: */ + +/** @ingroup netconn_common + * Create new netconn connection + * @param t @ref netconn_type */ +#define netconn_new(t) netconn_new_with_proto_and_callback(t, 0, NULL) +#define netconn_new_with_callback(t, c) netconn_new_with_proto_and_callback(t, 0, c) +struct netconn *netconn_new_with_proto_and_callback(enum netconn_type t, u8_t proto, + netconn_callback callback); +err_t netconn_prepare_delete(struct netconn *conn); +err_t netconn_delete(struct netconn *conn); +/** Get the type of a netconn (as enum netconn_type). */ +#define netconn_type(conn) (conn->type) + +err_t netconn_getaddr(struct netconn *conn, ip_addr_t *addr, + u16_t *port, u8_t local); +/** @ingroup netconn_common */ +#define netconn_peer(c,i,p) netconn_getaddr(c,i,p,0) +/** @ingroup netconn_common */ +#define netconn_addr(c,i,p) netconn_getaddr(c,i,p,1) + +err_t netconn_bind(struct netconn *conn, const ip_addr_t *addr, u16_t port); +err_t netconn_bind_if(struct netconn *conn, u8_t if_idx); +err_t netconn_connect(struct netconn *conn, const ip_addr_t *addr, u16_t port); +err_t netconn_disconnect (struct netconn *conn); +err_t netconn_listen_with_backlog(struct netconn *conn, u8_t backlog); +/** @ingroup netconn_tcp */ +#define netconn_listen(conn) netconn_listen_with_backlog(conn, TCP_DEFAULT_LISTEN_BACKLOG) +err_t netconn_accept(struct netconn *conn, struct netconn **new_conn); +err_t netconn_recv(struct netconn *conn, struct netbuf **new_buf); +err_t netconn_recv_udp_raw_netbuf(struct netconn *conn, struct netbuf **new_buf); +err_t netconn_recv_udp_raw_netbuf_flags(struct netconn *conn, struct netbuf **new_buf, u8_t apiflags); +err_t netconn_recv_tcp_pbuf(struct netconn *conn, struct pbuf **new_buf); +err_t netconn_recv_tcp_pbuf_flags(struct netconn *conn, struct pbuf **new_buf, u8_t apiflags); +err_t netconn_tcp_recvd(struct netconn *conn, size_t len); +err_t netconn_sendto(struct netconn *conn, struct netbuf *buf, + const ip_addr_t *addr, u16_t port); +err_t netconn_send(struct netconn *conn, struct netbuf *buf); +err_t netconn_write_partly(struct netconn *conn, const void *dataptr, size_t size, + u8_t apiflags, size_t *bytes_written); +err_t netconn_write_vectors_partly(struct netconn *conn, struct netvector *vectors, u16_t vectorcnt, + u8_t apiflags, size_t *bytes_written); +/** @ingroup netconn_tcp */ +#define netconn_write(conn, dataptr, size, apiflags) \ + netconn_write_partly(conn, dataptr, size, apiflags, NULL) +err_t netconn_close(struct netconn *conn); +err_t netconn_shutdown(struct netconn *conn, u8_t shut_rx, u8_t shut_tx); + +#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) +err_t netconn_join_leave_group(struct netconn *conn, const ip_addr_t *multiaddr, + const ip_addr_t *netif_addr, enum netconn_igmp join_or_leave); +err_t netconn_join_leave_group_netif(struct netconn *conn, const ip_addr_t *multiaddr, + u8_t if_idx, enum netconn_igmp join_or_leave); +#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */ +#if LWIP_DNS +#if LWIP_IPV4 && LWIP_IPV6 +err_t netconn_gethostbyname_addrtype(const char *name, ip_addr_t *addr, u8_t dns_addrtype); +#define netconn_gethostbyname(name, addr) netconn_gethostbyname_addrtype(name, addr, NETCONN_DNS_DEFAULT) +#else /* LWIP_IPV4 && LWIP_IPV6 */ +err_t netconn_gethostbyname(const char *name, ip_addr_t *addr); +#define netconn_gethostbyname_addrtype(name, addr, dns_addrtype) netconn_gethostbyname(name, addr) +#endif /* LWIP_IPV4 && LWIP_IPV6 */ +#endif /* LWIP_DNS */ + +err_t netconn_err(struct netconn *conn); +#define netconn_recv_bufsize(conn) ((conn)->recv_bufsize) + +#define netconn_set_flags(conn, set_flags) do { (conn)->flags = (u8_t)((conn)->flags | (set_flags)); } while(0) +#define netconn_clear_flags(conn, clr_flags) do { (conn)->flags = (u8_t)((conn)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0) +#define netconn_is_flag_set(conn, flag) (((conn)->flags & (flag)) != 0) + +#define netconn_set_callback_arg(conn, arg) do { (conn)->callback_arg.ptr = (arg); } while(0) +#define netconn_get_callback_arg(conn) ((conn)->callback_arg.ptr) + +/** Set the blocking status of netconn calls (@todo: write/send is missing) */ +#define netconn_set_nonblocking(conn, val) do { if(val) { \ + netconn_set_flags(conn, NETCONN_FLAG_NON_BLOCKING); \ +} else { \ + netconn_clear_flags(conn, NETCONN_FLAG_NON_BLOCKING); }} while(0) +/** Get the blocking status of netconn calls (@todo: write/send is missing) */ +#define netconn_is_nonblocking(conn) (((conn)->flags & NETCONN_FLAG_NON_BLOCKING) != 0) + +#if LWIP_IPV6 +/** @ingroup netconn_common + * TCP: Set the IPv6 ONLY status of netconn calls (see NETCONN_FLAG_IPV6_V6ONLY) + */ +#define netconn_set_ipv6only(conn, val) do { if(val) { \ + netconn_set_flags(conn, NETCONN_FLAG_IPV6_V6ONLY); \ +} else { \ + netconn_clear_flags(conn, NETCONN_FLAG_IPV6_V6ONLY); }} while(0) +/** @ingroup netconn_common + * TCP: Get the IPv6 ONLY status of netconn calls (see NETCONN_FLAG_IPV6_V6ONLY) + */ +#define netconn_get_ipv6only(conn) (((conn)->flags & NETCONN_FLAG_IPV6_V6ONLY) != 0) +#endif /* LWIP_IPV6 */ + +#if LWIP_SO_SNDTIMEO +/** Set the send timeout in milliseconds */ +#define netconn_set_sendtimeout(conn, timeout) ((conn)->send_timeout = (timeout)) +/** Get the send timeout in milliseconds */ +#define netconn_get_sendtimeout(conn) ((conn)->send_timeout) +#endif /* LWIP_SO_SNDTIMEO */ +#if LWIP_SO_RCVTIMEO +/** Set the receive timeout in milliseconds */ +#define netconn_set_recvtimeout(conn, timeout) ((conn)->recv_timeout = (timeout)) +/** Get the receive timeout in milliseconds */ +#define netconn_get_recvtimeout(conn) ((conn)->recv_timeout) +#endif /* LWIP_SO_RCVTIMEO */ +#if LWIP_SO_RCVBUF +/** Set the receive buffer in bytes */ +#define netconn_set_recvbufsize(conn, recvbufsize) ((conn)->recv_bufsize = (recvbufsize)) +/** Get the receive buffer in bytes */ +#define netconn_get_recvbufsize(conn) ((conn)->recv_bufsize) +#endif /* LWIP_SO_RCVBUF*/ + +#if LWIP_NETCONN_SEM_PER_THREAD +void netconn_thread_init(void); +void netconn_thread_cleanup(void); +#else /* LWIP_NETCONN_SEM_PER_THREAD */ +#define netconn_thread_init() +#define netconn_thread_cleanup() +#endif /* LWIP_NETCONN_SEM_PER_THREAD */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_NETCONN || LWIP_SOCKET */ + +#endif /* LWIP_HDR_API_H */ diff --git a/middleware/lwip/src/include/lwip/apps/FILES b/middleware/lwip/src/include/lwip/apps/FILES new file mode 100644 index 0000000..adfc0f3 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/FILES @@ -0,0 +1,2 @@ +This directory contains application headers. +Every application shall provide one api file APP.h and optionally one options file APP_opts.h diff --git a/middleware/lwip/src/include/lwip/apps/altcp_proxyconnect.h b/middleware/lwip/src/include/lwip/apps/altcp_proxyconnect.h new file mode 100644 index 0000000..65d3127 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/altcp_proxyconnect.h @@ -0,0 +1,79 @@ +/** + * @file + * Application layered TCP connection API that executes a proxy-connect. + * + * This file provides a starting layer that executes a proxy-connect e.g. to + * set up TLS connections through a http proxy. + */ + +/* + * Copyright (c) 2018 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_APPS_ALTCP_PROXYCONNECT_H +#define LWIP_HDR_APPS_ALTCP_PROXYCONNECT_H + +#include "lwip/opt.h" + +#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/ip_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct altcp_proxyconnect_config { + ip_addr_t proxy_addr; + u16_t proxy_port; +}; + + +struct altcp_pcb *altcp_proxyconnect_new(struct altcp_proxyconnect_config *config, struct altcp_pcb *inner_pcb); +struct altcp_pcb *altcp_proxyconnect_new_tcp(struct altcp_proxyconnect_config *config, u8_t ip_type); + +struct altcp_pcb *altcp_proxyconnect_alloc(void *arg, u8_t ip_type); + +#if LWIP_ALTCP_TLS +struct altcp_proxyconnect_tls_config { + struct altcp_proxyconnect_config proxy; + struct altcp_tls_config *tls_config; +}; + +struct altcp_pcb *altcp_proxyconnect_tls_alloc(void *arg, u8_t ip_type); +#endif /* LWIP_ALTCP_TLS */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_ALTCP */ +#endif /* LWIP_HDR_APPS_ALTCP_PROXYCONNECT_H */ diff --git a/middleware/lwip/src/include/lwip/apps/altcp_tls_mbedtls_opts.h b/middleware/lwip/src/include/lwip/apps/altcp_tls_mbedtls_opts.h new file mode 100644 index 0000000..e41301c --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/altcp_tls_mbedtls_opts.h @@ -0,0 +1,111 @@ +/** + * @file + * Application layered TCP/TLS connection API (to be used from TCPIP thread) + * + * This file contains options for an mbedtls port of the TLS layer. + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_ALTCP_TLS_OPTS_H +#define LWIP_HDR_ALTCP_TLS_OPTS_H + +#include "lwip/opt.h" + +#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ + +/** LWIP_ALTCP_TLS_MBEDTLS==1: use mbedTLS for TLS support for altcp API + * mbedtls include directory must be reachable via include search path + */ +#ifndef LWIP_ALTCP_TLS_MBEDTLS +#define LWIP_ALTCP_TLS_MBEDTLS 0 +#endif + +/** Configure debug level of this file */ +#ifndef ALTCP_MBEDTLS_DEBUG +#define ALTCP_MBEDTLS_DEBUG LWIP_DBG_OFF +#endif + +/** Configure lwIP debug level of the mbedTLS library */ +#ifndef ALTCP_MBEDTLS_LIB_DEBUG +#define ALTCP_MBEDTLS_LIB_DEBUG LWIP_DBG_OFF +#endif + +/** Configure minimum internal debug level of the mbedTLS library */ +#ifndef ALTCP_MBEDTLS_LIB_DEBUG_LEVEL_MIN +#define ALTCP_MBEDTLS_LIB_DEBUG_LEVEL_MIN 0 +#endif + +/** Enable the basic session cache + * ATTENTION: Using a session cache can lower security by reusing keys! + */ +#ifndef ALTCP_MBEDTLS_USE_SESSION_CACHE +#define ALTCP_MBEDTLS_USE_SESSION_CACHE 0 +#endif + +/** Maximum cache size of the basic session cache */ +#ifndef ALTCP_MBEDTLS_SESSION_CACHE_SIZE +#define ALTCP_MBEDTLS_SESSION_CACHE_SIZE 30 +#endif + +/** Set a session timeout in seconds for the basic session cache */ +#ifndef ALTCP_MBEDTLS_SESSION_CACHE_TIMEOUT_SECONDS +#define ALTCP_MBEDTLS_SESSION_CACHE_TIMEOUT_SECONDS (60 * 60) +#endif + +/** Use session tickets to speed up connection setup (needs + * MBEDTLS_SSL_SESSION_TICKETS enabled in mbedTLS config). + * ATTENTION: Using session tickets can lower security by reusing keys! + */ +#ifndef ALTCP_MBEDTLS_USE_SESSION_TICKETS +#define ALTCP_MBEDTLS_USE_SESSION_TICKETS 0 +#endif + +/** Session ticket cipher */ +#ifndef ALTCP_MBEDTLS_SESSION_TICKET_CIPHER +#define ALTCP_MBEDTLS_SESSION_TICKET_CIPHER MBEDTLS_CIPHER_AES_256_GCM +#endif + +/** Maximum timeout for session tickets */ +#ifndef ALTCP_MBEDTLS_SESSION_TICKET_TIMEOUT_SECONDS +#define ALTCP_MBEDTLS_SESSION_TICKET_TIMEOUT_SECONDS (60 * 60 * 24) +#endif + +/** Certificate verification mode: MBEDTLS_SSL_VERIFY_NONE, MBEDTLS_SSL_VERIFY_OPTIONAL (default), + * MBEDTLS_SSL_VERIFY_REQUIRED (recommended)*/ +#ifndef ALTCP_MBEDTLS_AUTHMODE +#define ALTCP_MBEDTLS_AUTHMODE MBEDTLS_SSL_VERIFY_OPTIONAL +#endif + +#endif /* LWIP_ALTCP */ + +#endif /* LWIP_HDR_ALTCP_TLS_OPTS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/fs.h b/middleware/lwip/src/include/lwip/apps/fs.h new file mode 100644 index 0000000..5be77c1 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/fs.h @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_APPS_FS_H +#define LWIP_HDR_APPS_FS_H + +#include "httpd_opts.h" +#include "lwip/err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define FS_READ_EOF -1 +#define FS_READ_DELAYED -2 + +#if HTTPD_PRECALCULATED_CHECKSUM +struct fsdata_chksum { + u32_t offset; + u16_t chksum; + u16_t len; +}; +#endif /* HTTPD_PRECALCULATED_CHECKSUM */ + +#define FS_FILE_FLAGS_HEADER_INCLUDED 0x01 +#define FS_FILE_FLAGS_HEADER_PERSISTENT 0x02 +#define FS_FILE_FLAGS_HEADER_HTTPVER_1_1 0x04 +#define FS_FILE_FLAGS_SSI 0x08 + +/** Define FS_FILE_EXTENSION_T_DEFINED if you have typedef'ed to your private + * pointer type (defaults to 'void' so the default usage is 'void*') + */ +#ifndef FS_FILE_EXTENSION_T_DEFINED +typedef void fs_file_extension; +#endif + +struct fs_file { + const char *data; + int len; + int index; + /* pextension is free for implementations to hold private (extensional) + arbitrary data, e.g. holding some file state or file system handle */ + fs_file_extension *pextension; +#if HTTPD_PRECALCULATED_CHECKSUM + const struct fsdata_chksum *chksum; + u16_t chksum_count; +#endif /* HTTPD_PRECALCULATED_CHECKSUM */ + u8_t flags; +#if LWIP_HTTPD_CUSTOM_FILES + u8_t is_custom_file; +#endif /* LWIP_HTTPD_CUSTOM_FILES */ +#if LWIP_HTTPD_FILE_STATE + void *state; +#endif /* LWIP_HTTPD_FILE_STATE */ +}; + +#if LWIP_HTTPD_FS_ASYNC_READ +typedef void (*fs_wait_cb)(void *arg); +#endif /* LWIP_HTTPD_FS_ASYNC_READ */ + +err_t fs_open(struct fs_file *file, const char *name); +void fs_close(struct fs_file *file); +#if LWIP_HTTPD_DYNAMIC_FILE_READ +#if LWIP_HTTPD_FS_ASYNC_READ +int fs_read_async(struct fs_file *file, char *buffer, int count, fs_wait_cb callback_fn, void *callback_arg); +#else /* LWIP_HTTPD_FS_ASYNC_READ */ +int fs_read(struct fs_file *file, char *buffer, int count); +#endif /* LWIP_HTTPD_FS_ASYNC_READ */ +#endif /* LWIP_HTTPD_DYNAMIC_FILE_READ */ +#if LWIP_HTTPD_FS_ASYNC_READ +int fs_is_file_ready(struct fs_file *file, fs_wait_cb callback_fn, void *callback_arg); +#endif /* LWIP_HTTPD_FS_ASYNC_READ */ +int fs_bytes_left(struct fs_file *file); + +#if LWIP_HTTPD_FILE_STATE +/** This user-defined function is called when a file is opened. */ +void *fs_state_init(struct fs_file *file, const char *name); +/** This user-defined function is called when a file is closed. */ +void fs_state_free(struct fs_file *file, void *state); +#endif /* #if LWIP_HTTPD_FILE_STATE */ + +struct fsdata_file { + const struct fsdata_file *next; + const unsigned char *name; + const unsigned char *data; + int len; + u8_t flags; +#if HTTPD_PRECALCULATED_CHECKSUM + u16_t chksum_count; + const struct fsdata_chksum *chksum; +#endif /* HTTPD_PRECALCULATED_CHECKSUM */ +}; + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_FS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/http_client.h b/middleware/lwip/src/include/lwip/apps/http_client.h new file mode 100644 index 0000000..d39e1bf --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/http_client.h @@ -0,0 +1,160 @@ +/** + * @file + * HTTP client + */ + +/* + * Copyright (c) 2018 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_APPS_HTTP_CLIENT_H +#define LWIP_HDR_APPS_HTTP_CLIENT_H + +#include "lwip/opt.h" +#include "lwip/ip_addr.h" +#include "lwip/err.h" +#include "lwip/altcp.h" +#include "lwip/prot/iana.h" +#include "lwip/pbuf.h" + +#if LWIP_TCP && LWIP_CALLBACK_API + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @ingroup httpc + * HTTPC_HAVE_FILE_IO: define this to 1 to have functions dowloading directly + * to disk via fopen/fwrite. + * These functions are example implementations of the interface only. + */ +#ifndef LWIP_HTTPC_HAVE_FILE_IO +#define LWIP_HTTPC_HAVE_FILE_IO 0 +#endif + +/** + * @ingroup httpc + * The default TCP port used for HTTP + */ +#define HTTP_DEFAULT_PORT LWIP_IANA_PORT_HTTP + +/** + * @ingroup httpc + * HTTP client result codes + */ +typedef enum ehttpc_result { + /** File successfully received */ + HTTPC_RESULT_OK = 0, + /** Unknown error */ + HTTPC_RESULT_ERR_UNKNOWN = 1, + /** Connection to server failed */ + HTTPC_RESULT_ERR_CONNECT = 2, + /** Failed to resolve server hostname */ + HTTPC_RESULT_ERR_HOSTNAME = 3, + /** Connection unexpectedly closed by remote server */ + HTTPC_RESULT_ERR_CLOSED = 4, + /** Connection timed out (server didn't respond in time) */ + HTTPC_RESULT_ERR_TIMEOUT = 5, + /** Server responded with an error code */ + HTTPC_RESULT_ERR_SVR_RESP = 6, + /** Local memory error */ + HTTPC_RESULT_ERR_MEM = 7, + /** Local abort */ + HTTPC_RESULT_LOCAL_ABORT = 8, + /** Content length mismatch */ + HTTPC_RESULT_ERR_CONTENT_LEN = 9 +} httpc_result_t; + +typedef struct _httpc_state httpc_state_t; + +/** + * @ingroup httpc + * Prototype of a http client callback function + * + * @param arg argument specified when initiating the request + * @param httpc_result result of the http transfer (see enum httpc_result_t) + * @param rx_content_len number of bytes received (without headers) + * @param srv_res this contains the http status code received (if any) + * @param err an error returned by internal lwip functions, can help to specify + * the source of the error but must not necessarily be != ERR_OK + */ +typedef void (*httpc_result_fn)(void *arg, httpc_result_t httpc_result, u32_t rx_content_len, u32_t srv_res, err_t err); + +/** + * @ingroup httpc + * Prototype of http client callback: called when the headers are received + * + * @param connection http client connection + * @param arg argument specified when initiating the request + * @param hdr header pbuf(s) (may contain data also) + * @param hdr_len length of the heders in 'hdr' + * @param content_len content length as received in the headers (-1 if not received) + * @return if != ERR_OK is returned, the connection is aborted + */ +typedef err_t (*httpc_headers_done_fn)(httpc_state_t *connection, void *arg, struct pbuf *hdr, u16_t hdr_len, u32_t content_len); + +typedef struct _httpc_connection { + ip_addr_t proxy_addr; + u16_t proxy_port; + u8_t use_proxy; + /* @todo: add username:pass? */ + +#if LWIP_ALTCP + altcp_allocator_t *altcp_allocator; +#endif + + /* this callback is called when the transfer is finished (or aborted) */ + httpc_result_fn result_fn; + /* this callback is called after receiving the http headers + It can abort the connection by returning != ERR_OK */ + httpc_headers_done_fn headers_done_fn; +} httpc_connection_t; + +err_t httpc_get_file(const ip_addr_t* server_addr, u16_t port, const char* uri, const httpc_connection_t *settings, + altcp_recv_fn recv_fn, void* callback_arg, httpc_state_t **connection); +err_t httpc_get_file_dns(const char* server_name, u16_t port, const char* uri, const httpc_connection_t *settings, + altcp_recv_fn recv_fn, void* callback_arg, httpc_state_t **connection); + +#if LWIP_HTTPC_HAVE_FILE_IO +err_t httpc_get_file_to_disk(const ip_addr_t* server_addr, u16_t port, const char* uri, const httpc_connection_t *settings, + void* callback_arg, const char* local_file_name, httpc_state_t **connection); +err_t httpc_get_file_dns_to_disk(const char* server_name, u16_t port, const char* uri, const httpc_connection_t *settings, + void* callback_arg, const char* local_file_name, httpc_state_t **connection); +#endif /* LWIP_HTTPC_HAVE_FILE_IO */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_TCP && LWIP_CALLBACK_API */ + +#endif /* LWIP_HDR_APPS_HTTP_CLIENT_H */ diff --git a/middleware/lwip/src/include/lwip/apps/httpd.h b/middleware/lwip/src/include/lwip/apps/httpd.h new file mode 100644 index 0000000..e872429 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/httpd.h @@ -0,0 +1,255 @@ +/** + * @file + * HTTP server + */ + +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + * This version of the file has been modified by Texas Instruments to offer + * simple server-side-include (SSI) and Common Gateway Interface (CGI) + * capability. + */ + +#ifndef LWIP_HDR_APPS_HTTPD_H +#define LWIP_HDR_APPS_HTTPD_H + +#include "httpd_opts.h" +#include "lwip/err.h" +#include "lwip/pbuf.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_HTTPD_CGI + +/** + * @ingroup httpd + * Function pointer for a CGI script handler. + * + * This function is called each time the HTTPD server is asked for a file + * whose name was previously registered as a CGI function using a call to + * http_set_cgi_handlers. The iIndex parameter provides the index of the + * CGI within the cgis array passed to http_set_cgi_handlers. Parameters + * pcParam and pcValue provide access to the parameters provided along with + * the URI. iNumParams provides a count of the entries in the pcParam and + * pcValue arrays. Each entry in the pcParam array contains the name of a + * parameter with the corresponding entry in the pcValue array containing the + * value for that parameter. Note that pcParam may contain multiple elements + * with the same name if, for example, a multi-selection list control is used + * in the form generating the data. + * + * The function should return a pointer to a character string which is the + * path and filename of the response that is to be sent to the connected + * browser, for example "/thanks.htm" or "/response/error.ssi". + * + * The maximum number of parameters that will be passed to this function via + * iNumParams is defined by LWIP_HTTPD_MAX_CGI_PARAMETERS. Any parameters in + * the incoming HTTP request above this number will be discarded. + * + * Requests intended for use by this CGI mechanism must be sent using the GET + * method (which encodes all parameters within the URI rather than in a block + * later in the request). Attempts to use the POST method will result in the + * request being ignored. + * + */ +typedef const char *(*tCGIHandler)(int iIndex, int iNumParams, char *pcParam[], + char *pcValue[]); + +/** + * @ingroup httpd + * Structure defining the base filename (URL) of a CGI and the associated + * function which is to be called when that URL is requested. + */ +typedef struct +{ + const char *pcCGIName; + tCGIHandler pfnCGIHandler; +} tCGI; + +void http_set_cgi_handlers(const tCGI *pCGIs, int iNumHandlers); + +#endif /* LWIP_HTTPD_CGI */ + +#if LWIP_HTTPD_CGI || LWIP_HTTPD_CGI_SSI + +#if LWIP_HTTPD_CGI_SSI +/* we have to prototype this struct here to make it available for the handler */ +struct fs_file; + +/** Define this generic CGI handler in your application. + * It is called once for every URI with parameters. + * The parameters can be stored to the object passed as connection_state, which + * is allocated to file->state via fs_state_init() from fs_open() or fs_open_custom(). + * Content creation via SSI or complete dynamic files can retrieve the CGI params from there. + */ +extern void httpd_cgi_handler(struct fs_file *file, const char* uri, int iNumParams, + char **pcParam, char **pcValue +#if defined(LWIP_HTTPD_FILE_STATE) && LWIP_HTTPD_FILE_STATE + , void *connection_state +#endif /* LWIP_HTTPD_FILE_STATE */ + ); +#endif /* LWIP_HTTPD_CGI_SSI */ + +#endif /* LWIP_HTTPD_CGI || LWIP_HTTPD_CGI_SSI */ + +#if LWIP_HTTPD_SSI + +/** + * @ingroup httpd + * Function pointer for the SSI tag handler callback. + * + * This function will be called each time the HTTPD server detects a tag of the + * form in files with extensions mentioned in the g_pcSSIExtensions + * array (currently .shtml, .shtm, .ssi, .xml, .json) where "name" appears as + * one of the tags supplied to http_set_ssi_handler in the tags array. The + * returned insert string, which will be appended after the the string + * "" in file sent back to the client, should be written to pointer + * pcInsert. iInsertLen contains the size of the buffer pointed to by + * pcInsert. The iIndex parameter provides the zero-based index of the tag as + * found in the tags array and identifies the tag that is to be processed. + * + * The handler returns the number of characters written to pcInsert excluding + * any terminating NULL or HTTPD_SSI_TAG_UNKNOWN when tag is not recognized. + * + * Note that the behavior of this SSI mechanism is somewhat different from the + * "normal" SSI processing as found in, for example, the Apache web server. In + * this case, the inserted text is appended following the SSI tag rather than + * replacing the tag entirely. This allows for an implementation that does not + * require significant additional buffering of output data yet which will still + * offer usable SSI functionality. One downside to this approach is when + * attempting to use SSI within JavaScript. The SSI tag is structured to + * resemble an HTML comment but this syntax does not constitute a comment + * within JavaScript and, hence, leaving the tag in place will result in + * problems in these cases. In order to avoid these problems, define + * LWIP_HTTPD_SSI_INCLUDE_TAG as zero in your lwip options file, or use JavaScript + * style block comments in the form / * # name * / (without the spaces). + */ +typedef u16_t (*tSSIHandler)( +#if LWIP_HTTPD_SSI_RAW + const char* ssi_tag_name, +#else /* LWIP_HTTPD_SSI_RAW */ + int iIndex, +#endif /* LWIP_HTTPD_SSI_RAW */ + char *pcInsert, int iInsertLen +#if LWIP_HTTPD_SSI_MULTIPART + , u16_t current_tag_part, u16_t *next_tag_part +#endif /* LWIP_HTTPD_SSI_MULTIPART */ +#if defined(LWIP_HTTPD_FILE_STATE) && LWIP_HTTPD_FILE_STATE + , void *connection_state +#endif /* LWIP_HTTPD_FILE_STATE */ + ); + +/** Set the SSI handler function + * (if LWIP_HTTPD_SSI_RAW==1, only the first argument is used) + */ +void http_set_ssi_handler(tSSIHandler pfnSSIHandler, + const char **ppcTags, int iNumTags); + +/** For LWIP_HTTPD_SSI_RAW==1, return this to indicate the tag is unknown. + * In this case, the webserver writes a warning into the page. + * You can also just return 0 to write nothing for unknown tags. + */ +#define HTTPD_SSI_TAG_UNKNOWN 0xFFFF + +#endif /* LWIP_HTTPD_SSI */ + +#if LWIP_HTTPD_SUPPORT_POST + +/* These functions must be implemented by the application */ + +/** + * @ingroup httpd + * Called when a POST request has been received. The application can decide + * whether to accept it or not. + * + * @param connection Unique connection identifier, valid until httpd_post_end + * is called. + * @param uri The HTTP header URI receiving the POST request. + * @param http_request The raw HTTP request (the first packet, normally). + * @param http_request_len Size of 'http_request'. + * @param content_len Content-Length from HTTP header. + * @param response_uri Filename of response file, to be filled when denying the + * request + * @param response_uri_len Size of the 'response_uri' buffer. + * @param post_auto_wnd Set this to 0 to let the callback code handle window + * updates by calling 'httpd_post_data_recved' (to throttle rx speed) + * default is 1 (httpd handles window updates automatically) + * @return ERR_OK: Accept the POST request, data may be passed in + * another err_t: Deny the POST request, send back 'bad request'. + */ +err_t httpd_post_begin(void *connection, const char *uri, const char *http_request, + u16_t http_request_len, int content_len, char *response_uri, + u16_t response_uri_len, u8_t *post_auto_wnd); + +/** + * @ingroup httpd + * Called for each pbuf of data that has been received for a POST. + * ATTENTION: The application is responsible for freeing the pbufs passed in! + * + * @param connection Unique connection identifier. + * @param p Received data. + * @return ERR_OK: Data accepted. + * another err_t: Data denied, http_post_get_response_uri will be called. + */ +err_t httpd_post_receive_data(void *connection, struct pbuf *p); + +/** + * @ingroup httpd + * Called when all data is received or when the connection is closed. + * The application must return the filename/URI of a file to send in response + * to this POST request. If the response_uri buffer is untouched, a 404 + * response is returned. + * + * @param connection Unique connection identifier. + * @param response_uri Filename of response file, to be filled when denying the request + * @param response_uri_len Size of the 'response_uri' buffer. + */ +void httpd_post_finished(void *connection, char *response_uri, u16_t response_uri_len); + +#if LWIP_HTTPD_POST_MANUAL_WND +void httpd_post_data_recved(void *connection, u16_t recved_len); +#endif /* LWIP_HTTPD_POST_MANUAL_WND */ + +#endif /* LWIP_HTTPD_SUPPORT_POST */ + +void httpd_init(void); + +#if HTTPD_ENABLE_HTTPS +struct altcp_tls_config; +void httpd_inits(struct altcp_tls_config *conf); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_HTTPD_H */ diff --git a/middleware/lwip/src/include/lwip/apps/httpd_opts.h b/middleware/lwip/src/include/lwip/apps/httpd_opts.h new file mode 100644 index 0000000..97baad7 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/httpd_opts.h @@ -0,0 +1,407 @@ +/** + * @file + * HTTP server options list + */ + +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + * This version of the file has been modified by Texas Instruments to offer + * simple server-side-include (SSI) and Common Gateway Interface (CGI) + * capability. + */ + +#ifndef LWIP_HDR_APPS_HTTPD_OPTS_H +#define LWIP_HDR_APPS_HTTPD_OPTS_H + +#include "lwip/opt.h" +#include "lwip/prot/iana.h" +#include "lwip/altcp.h" + +/** + * @defgroup httpd_opts Options + * @ingroup httpd + * @{ + */ + +/** Set this to 1 to support CGI (old style). + * + * This old style CGI support works by registering an array of URLs and + * associated CGI handler functions (@ref http_set_cgi_handlers). + * This list is scanned just before fs_open is called from request handling. + * The handler can return a new URL that is used internally by the httpd to + * load the returned page (passed to fs_open). + * + * Use this CGI type e.g. to execute specific actions and return a page that + * does not depend on the CGI parameters. + */ +#if !defined LWIP_HTTPD_CGI || defined __DOXYGEN__ +#define LWIP_HTTPD_CGI 0 +#endif + +/** Set this to 1 to support CGI (new style). + * + * This new style CGI support works by calling a global function + * (@ref tCGIHandler) for all URLs that are found. fs_open is called first + * and the URL can not be written by the CGI handler. Instead, this handler gets + * passed the http file state, an object where it can store information derived + * from the CGI URL or parameters. This file state is later passed to SSI, so + * the SSI code can return data depending on CGI input. + * + * Use this CGI handler if you want CGI information passed on to SSI. + */ +#if !defined LWIP_HTTPD_CGI_SSI || defined __DOXYGEN__ +#define LWIP_HTTPD_CGI_SSI 0 +#endif + +/** Set this to 1 to support SSI (Server-Side-Includes) + * + * In contrast to other http servers, this only calls a preregistered callback + * function (@see http_set_ssi_handler) for each tag (in the format of + * ) encountered in SSI-enabled pages. + * SSI-enabled pages must have one of the predefined SSI-enabled file extensions. + * All files with one of these extensions are parsed when sent. + * + * A downside of the current SSI implementation is that persistent connections + * don't work, as the file length is not known in advance (and httpd currently + * relies on the Content-Length header for persistent connections). + * + * To save memory, the maximum tag length is limited (@see LWIP_HTTPD_MAX_TAG_NAME_LEN). + * To save memory, the maximum insertion string length is limited (@see + * LWIP_HTTPD_MAX_TAG_INSERT_LEN). If this is not enough, @ref LWIP_HTTPD_SSI_MULTIPART + * can be used. + */ +#if !defined LWIP_HTTPD_SSI || defined __DOXYGEN__ +#define LWIP_HTTPD_SSI 0 +#endif + +/** Set this to 1 to implement an SSI tag handler callback that gets a const char* + * to the tag (instead of an index into a pre-registered array of known tags) + * If this is 0, the SSI handler callback function is only called pre-registered tags. + */ +#if !defined LWIP_HTTPD_SSI_RAW || defined __DOXYGEN__ +#define LWIP_HTTPD_SSI_RAW 0 +#endif + +/** Set this to 0 to prevent parsing the file extension at runtime to decide + * if a file should be scanned for SSI tags or not. + * Default is 1 (file extensions are checked using the g_pcSSIExtensions array) + * Set to 2 to override this runtime test function. In this case, you have to + * provide an external function that does the check: + * u8_t http_uri_is_ssi(struct fs_file *file, const char *uri) + * + * This is enabled by default, but if you only use a newer version of makefsdata + * supporting the "-ssi" option, this info is already present in + */ +#if !defined LWIP_HTTPD_SSI_BY_FILE_EXTENSION || defined __DOXYGEN__ +#define LWIP_HTTPD_SSI_BY_FILE_EXTENSION 1 +#endif + +/** This is a list of file extensions handled as SSI files. This define + * is used to initialize a 'const char *const[]'. It is only used if + * LWIP_HTTPD_SSI_BY_FILE_EXTENSION != 0. + */ +#if !defined LWIP_HTTPD_SSI_EXTENSIONS || defined __DOXYGEN__ +#define LWIP_HTTPD_SSI_EXTENSIONS ".shtml", ".shtm", ".ssi", ".xml", ".json" +#endif + +/** Set this to 1 to support HTTP POST */ +#if !defined LWIP_HTTPD_SUPPORT_POST || defined __DOXYGEN__ +#define LWIP_HTTPD_SUPPORT_POST 0 +#endif + +/* The maximum number of parameters that the CGI handler can be sent. */ +#if !defined LWIP_HTTPD_MAX_CGI_PARAMETERS || defined __DOXYGEN__ +#define LWIP_HTTPD_MAX_CGI_PARAMETERS 16 +#endif + +/** LWIP_HTTPD_SSI_MULTIPART==1: SSI handler function is called with 2 more + * arguments indicating a counter for insert string that are too long to be + * inserted at once: the SSI handler function must then set 'next_tag_part' + * which will be passed back to it in the next call. */ +#if !defined LWIP_HTTPD_SSI_MULTIPART || defined __DOXYGEN__ +#define LWIP_HTTPD_SSI_MULTIPART 0 +#endif + +/* The maximum length of the string comprising the SSI tag name + * ATTENTION: tags longer than this are ignored, not truncated! + */ +#if !defined LWIP_HTTPD_MAX_TAG_NAME_LEN || defined __DOXYGEN__ +#define LWIP_HTTPD_MAX_TAG_NAME_LEN 8 +#endif + +/* The maximum length of string that can be returned to replace any given tag + * If this buffer is not long enough, use LWIP_HTTPD_SSI_MULTIPART. + */ +#if !defined LWIP_HTTPD_MAX_TAG_INSERT_LEN || defined __DOXYGEN__ +#define LWIP_HTTPD_MAX_TAG_INSERT_LEN 192 +#endif + +#if !defined LWIP_HTTPD_POST_MANUAL_WND || defined __DOXYGEN__ +#define LWIP_HTTPD_POST_MANUAL_WND 0 +#endif + +/** This string is passed in the HTTP header as "Server: " */ +#if !defined HTTPD_SERVER_AGENT || defined __DOXYGEN__ +#define HTTPD_SERVER_AGENT "lwIP/" LWIP_VERSION_STRING " (http://savannah.nongnu.org/projects/lwip)" +#endif + +/** Set this to 1 if you want to include code that creates HTTP headers + * at runtime. Default is off: HTTP headers are then created statically + * by the makefsdata tool. Static headers mean smaller code size, but + * the (readonly) fsdata will grow a bit as every file includes the HTTP + * header. */ +#if !defined LWIP_HTTPD_DYNAMIC_HEADERS || defined __DOXYGEN__ +#define LWIP_HTTPD_DYNAMIC_HEADERS 0 +#endif + +#if !defined HTTPD_DEBUG || defined __DOXYGEN__ +#define HTTPD_DEBUG LWIP_DBG_OFF +#endif + +/** Set this to 1 to use a memp pool for allocating + * struct http_state instead of the heap. + * If enabled, you'll need to define MEMP_NUM_PARALLEL_HTTPD_CONNS + * (and MEMP_NUM_PARALLEL_HTTPD_SSI_CONNS for SSI) to set the size of + * the pool(s). + */ +#if !defined HTTPD_USE_MEM_POOL || defined __DOXYGEN__ +#define HTTPD_USE_MEM_POOL 0 +#endif + +/** The server port for HTTPD to use */ +#if !defined HTTPD_SERVER_PORT || defined __DOXYGEN__ +#define HTTPD_SERVER_PORT LWIP_IANA_PORT_HTTP +#endif + +/** The https server port for HTTPD to use */ +#if !defined HTTPD_SERVER_PORT_HTTPS || defined __DOXYGEN__ +#define HTTPD_SERVER_PORT_HTTPS LWIP_IANA_PORT_HTTPS +#endif + +/** Enable https support? */ +#if !defined HTTPD_ENABLE_HTTPS || defined __DOXYGEN__ +#define HTTPD_ENABLE_HTTPS 0 +#endif + +/** Maximum retries before the connection is aborted/closed. + * - number of times pcb->poll is called -> default is 4*500ms = 2s; + * - reset when pcb->sent is called + */ +#if !defined HTTPD_MAX_RETRIES || defined __DOXYGEN__ +#define HTTPD_MAX_RETRIES 4 +#endif + +/** The poll delay is X*500ms */ +#if !defined HTTPD_POLL_INTERVAL || defined __DOXYGEN__ +#define HTTPD_POLL_INTERVAL 4 +#endif + +/** Priority for tcp pcbs created by HTTPD (very low by default). + * Lower priorities get killed first when running out of memory. + */ +#if !defined HTTPD_TCP_PRIO || defined __DOXYGEN__ +#define HTTPD_TCP_PRIO TCP_PRIO_MIN +#endif + +/** Set this to 1 to enable timing each file sent */ +#if !defined LWIP_HTTPD_TIMING || defined __DOXYGEN__ +#define LWIP_HTTPD_TIMING 0 +#endif +/** Set this to 1 to enable timing each file sent */ +#if !defined HTTPD_DEBUG_TIMING || defined __DOXYGEN__ +#define HTTPD_DEBUG_TIMING LWIP_DBG_OFF +#endif + +/** Set this to one to show error pages when parsing a request fails instead + of simply closing the connection. */ +#if !defined LWIP_HTTPD_SUPPORT_EXTSTATUS || defined __DOXYGEN__ +#define LWIP_HTTPD_SUPPORT_EXTSTATUS 0 +#endif + +/** Set this to 0 to drop support for HTTP/0.9 clients (to save some bytes) */ +#if !defined LWIP_HTTPD_SUPPORT_V09 || defined __DOXYGEN__ +#define LWIP_HTTPD_SUPPORT_V09 1 +#endif + +/** Set this to 1 to enable HTTP/1.1 persistent connections. + * ATTENTION: If the generated file system includes HTTP headers, these must + * include the "Connection: keep-alive" header (pass argument "-11" to makefsdata). + */ +#if !defined LWIP_HTTPD_SUPPORT_11_KEEPALIVE || defined __DOXYGEN__ +#define LWIP_HTTPD_SUPPORT_11_KEEPALIVE 0 +#endif + +/** Set this to 1 to support HTTP request coming in in multiple packets/pbufs */ +#if !defined LWIP_HTTPD_SUPPORT_REQUESTLIST || defined __DOXYGEN__ +#define LWIP_HTTPD_SUPPORT_REQUESTLIST 1 +#endif + +#if LWIP_HTTPD_SUPPORT_REQUESTLIST +/** Number of rx pbufs to enqueue to parse an incoming request (up to the first + newline) */ +#if !defined LWIP_HTTPD_REQ_QUEUELEN || defined __DOXYGEN__ +#define LWIP_HTTPD_REQ_QUEUELEN 5 +#endif + +/** Number of (TCP payload-) bytes (in pbufs) to enqueue to parse and incoming + request (up to the first double-newline) */ +#if !defined LWIP_HTTPD_REQ_BUFSIZE || defined __DOXYGEN__ +#define LWIP_HTTPD_REQ_BUFSIZE LWIP_HTTPD_MAX_REQ_LENGTH +#endif + +/** Defines the maximum length of a HTTP request line (up to the first CRLF, + copied from pbuf into this a global buffer when pbuf- or packet-queues + are received - otherwise the input pbuf is used directly) */ +#if !defined LWIP_HTTPD_MAX_REQ_LENGTH || defined __DOXYGEN__ +#define LWIP_HTTPD_MAX_REQ_LENGTH LWIP_MIN(1023, (LWIP_HTTPD_REQ_QUEUELEN * PBUF_POOL_BUFSIZE)) +#endif +#endif /* LWIP_HTTPD_SUPPORT_REQUESTLIST */ + +/** This is the size of a static buffer used when URIs end with '/'. + * In this buffer, the directory requested is concatenated with all the + * configured default file names. + * Set to 0 to disable checking default filenames on non-root directories. + */ +#if !defined LWIP_HTTPD_MAX_REQUEST_URI_LEN || defined __DOXYGEN__ +#define LWIP_HTTPD_MAX_REQUEST_URI_LEN 63 +#endif + +/** Maximum length of the filename to send as response to a POST request, + * filled in by the application when a POST is finished. + */ +#if !defined LWIP_HTTPD_POST_MAX_RESPONSE_URI_LEN || defined __DOXYGEN__ +#define LWIP_HTTPD_POST_MAX_RESPONSE_URI_LEN 63 +#endif + +/** Set this to 0 to not send the SSI tag (default is on, so the tag will + * be sent in the HTML page */ +#if !defined LWIP_HTTPD_SSI_INCLUDE_TAG || defined __DOXYGEN__ +#define LWIP_HTTPD_SSI_INCLUDE_TAG 1 +#endif + +/** Set this to 1 to call tcp_abort when tcp_close fails with memory error. + * This can be used to prevent consuming all memory in situations where the + * HTTP server has low priority compared to other communication. */ +#if !defined LWIP_HTTPD_ABORT_ON_CLOSE_MEM_ERROR || defined __DOXYGEN__ +#define LWIP_HTTPD_ABORT_ON_CLOSE_MEM_ERROR 0 +#endif + +/** Set this to 1 to kill the oldest connection when running out of + * memory for 'struct http_state' or 'struct http_ssi_state'. + * ATTENTION: This puts all connections on a linked list, so may be kind of slow. + */ +#if !defined LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED || defined __DOXYGEN__ +#define LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED 0 +#endif + +/** Set this to 1 to send URIs without extension without headers + * (who uses this at all??) */ +#if !defined LWIP_HTTPD_OMIT_HEADER_FOR_EXTENSIONLESS_URI || defined __DOXYGEN__ +#define LWIP_HTTPD_OMIT_HEADER_FOR_EXTENSIONLESS_URI 0 +#endif + +/** Default: Tags are sent from struct http_state and are therefore volatile */ +#if !defined HTTP_IS_TAG_VOLATILE || defined __DOXYGEN__ +#define HTTP_IS_TAG_VOLATILE(ptr) TCP_WRITE_FLAG_COPY +#endif + +/* By default, the httpd is limited to send 2*pcb->mss to keep resource usage low + when http is not an important protocol in the device. */ +#if !defined HTTPD_LIMIT_SENDING_TO_2MSS || defined __DOXYGEN__ +#define HTTPD_LIMIT_SENDING_TO_2MSS 1 +#endif + +/* Define this to a function that returns the maximum amount of data to enqueue. + The function have this signature: u16_t fn(struct altcp_pcb* pcb); + The best place to define this is the hooks file (@see LWIP_HOOK_FILENAME) */ +#if !defined HTTPD_MAX_WRITE_LEN || defined __DOXYGEN__ +#if HTTPD_LIMIT_SENDING_TO_2MSS +#define HTTPD_MAX_WRITE_LEN(pcb) ((u16_t)(2 * altcp_mss(pcb))) +#endif +#endif + +/*------------------- FS OPTIONS -------------------*/ + +/** Set this to 1 and provide the functions: + * - "int fs_open_custom(struct fs_file *file, const char *name)" + * Called first for every opened file to allow opening files + * that are not included in fsdata(_custom).c + * - "void fs_close_custom(struct fs_file *file)" + * Called to free resources allocated by fs_open_custom(). + */ +#if !defined LWIP_HTTPD_CUSTOM_FILES || defined __DOXYGEN__ +#define LWIP_HTTPD_CUSTOM_FILES 0 +#endif + +/** Set this to 1 to support fs_read() to dynamically read file data. + * Without this (default=off), only one-block files are supported, + * and the contents must be ready after fs_open(). + */ +#if !defined LWIP_HTTPD_DYNAMIC_FILE_READ || defined __DOXYGEN__ +#define LWIP_HTTPD_DYNAMIC_FILE_READ 0 +#endif + +/** Set this to 1 to include an application state argument per file + * that is opened. This allows to keep a state per connection/file. + */ +#if !defined LWIP_HTTPD_FILE_STATE || defined __DOXYGEN__ +#define LWIP_HTTPD_FILE_STATE 0 +#endif + +/** HTTPD_PRECALCULATED_CHECKSUM==1: include precompiled checksums for + * predefined (MSS-sized) chunks of the files to prevent having to calculate + * the checksums at runtime. */ +#if !defined HTTPD_PRECALCULATED_CHECKSUM || defined __DOXYGEN__ +#define HTTPD_PRECALCULATED_CHECKSUM 0 +#endif + +/** LWIP_HTTPD_FS_ASYNC_READ==1: support asynchronous read operations + * (fs_read_async returns FS_READ_DELAYED and calls a callback when finished). + */ +#if !defined LWIP_HTTPD_FS_ASYNC_READ || defined __DOXYGEN__ +#define LWIP_HTTPD_FS_ASYNC_READ 0 +#endif + +/** Filename (including path) to use as FS data file */ +#if !defined HTTPD_FSDATA_FILE || defined __DOXYGEN__ +/* HTTPD_USE_CUSTOM_FSDATA: Compatibility with deprecated lwIP option */ +#if defined(HTTPD_USE_CUSTOM_FSDATA) && (HTTPD_USE_CUSTOM_FSDATA != 0) +#define HTTPD_FSDATA_FILE "fsdata_custom.c" +#else +#define HTTPD_FSDATA_FILE "fsdata.c" +#endif +#endif + +/** + * @} + */ + +#endif /* LWIP_HDR_APPS_HTTPD_OPTS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/lwiperf.h b/middleware/lwip/src/include/lwip/apps/lwiperf.h new file mode 100644 index 0000000..f823b35 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/lwiperf.h @@ -0,0 +1,120 @@ +/** + * @file + * lwIP iPerf server implementation + */ + +/* + * Copyright (c) 2014 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_APPS_LWIPERF_H +#define LWIP_HDR_APPS_LWIPERF_H + +#include "lwip/opt.h" +#include "lwip/ip_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define LWIPERF_TCP_PORT_DEFAULT 5001 + +/** lwIPerf test results */ +enum lwiperf_report_type +{ + /** The server side test is done */ + LWIPERF_TCP_DONE_SERVER, + /** The client side test is done */ + LWIPERF_TCP_DONE_CLIENT, + /** Local error lead to test abort */ + LWIPERF_TCP_ABORTED_LOCAL, + /** Data check error lead to test abort */ + LWIPERF_TCP_ABORTED_LOCAL_DATAERROR, + /** Transmit error lead to test abort */ + LWIPERF_TCP_ABORTED_LOCAL_TXERROR, + /** Remote side aborted the test */ + LWIPERF_TCP_ABORTED_REMOTE, + /** The server side test is done */ + LWIPERF_UDP_DONE_SERVER, + /** The client side test is done */ + LWIPERF_UDP_DONE_CLIENT, + /** Local error lead to test abort */ + LWIPERF_UDP_ABORTED_LOCAL, + /** Data check error lead to test abort */ + LWIPERF_UDP_ABORTED_LOCAL_DATAERROR, + /** Transmit error lead to test abort */ + LWIPERF_UDP_ABORTED_LOCAL_TXERROR, + /** Remote side aborted the test */ + LWIPERF_UDP_ABORTED_REMOTE +}; + +/** Control */ +enum lwiperf_client_type +{ + /** Unidirectional tx only test */ + LWIPERF_CLIENT, + /** Do a bidirectional test simultaneously */ + LWIPERF_DUAL, + /** Do a bidirectional test individually */ + LWIPERF_TRADEOFF +}; + +/** Prototype of a report function that is called when a session is finished. + This report function can show the test results. + @param report_type contains the test result */ +typedef void (*lwiperf_report_fn)(void *arg, enum lwiperf_report_type report_type, + const ip_addr_t* local_addr, u16_t local_port, const ip_addr_t* remote_addr, u16_t remote_port, + u64_t bytes_transferred, u32_t ms_duration, u32_t bandwidth_kbitpsec); + +void* lwiperf_start_tcp_server(const ip_addr_t* local_addr, u16_t local_port, + lwiperf_report_fn report_fn, void* report_arg); +void* lwiperf_start_tcp_server_default(lwiperf_report_fn report_fn, void* report_arg); +void* lwiperf_start_tcp_client(const ip_addr_t* remote_addr, u16_t remote_port, + enum lwiperf_client_type type, int amount, + lwiperf_report_fn report_fn, void* report_arg); +void* lwiperf_start_tcp_client_default(const ip_addr_t* remote_addr, + lwiperf_report_fn report_fn, void* report_arg); + +void* lwiperf_start_udp_client(const ip_addr_t *local_addr, u16_t local_port, + const ip_addr_t *remote_addr, u16_t remote_port, + enum lwiperf_client_type type, int amount, s32_t rate, u8_t tos, + lwiperf_report_fn report_fn, void *report_arg); +void* lwiperf_start_udp_server(const ip_addr_t* local_addr, u16_t local_port, + lwiperf_report_fn report_fn, void* report_arg); +void lwiperf_poll_udp_client(void); + +void lwiperf_abort(void* lwiperf_session); + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_LWIPERF_H */ diff --git a/middleware/lwip/src/include/lwip/apps/mdns.h b/middleware/lwip/src/include/lwip/apps/mdns.h new file mode 100644 index 0000000..33da4a3 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/mdns.h @@ -0,0 +1,154 @@ +/** + * @file + * MDNS responder + */ + + /* + * Copyright (c) 2015 Verisure Innovation AB + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Author: Jasper Verschueren + * + */ + +#ifndef LWIP_HDR_APPS_MDNS_H +#define LWIP_HDR_APPS_MDNS_H + +#include "lwip/apps/mdns_opts.h" +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_MDNS_RESPONDER + +enum mdns_sd_proto { + DNSSD_PROTO_UDP = 0, + DNSSD_PROTO_TCP = 1 +}; + +#define MDNS_PROBING_CONFLICT 0 +#define MDNS_PROBING_SUCCESSFUL 1 + +#define MDNS_LABEL_MAXLEN 63 +#define MDNS_DOMAIN_MAXLEN 256 + +struct mdns_host; +struct mdns_service; + +/* Domain structs */ +struct mdns_domain { + /* Encoded domain name */ + u8_t name[MDNS_DOMAIN_MAXLEN]; + /* Total length of domain name, including zero */ + u16_t length; + /* Set if compression of this domain is not allowed */ + u8_t skip_compression; +}; + +/** Domain, type and class. + * Shared between questions and answers */ +struct mdns_rr_info { + struct mdns_domain domain; + u16_t type; + u16_t klass; +}; + +struct mdns_answer { + struct mdns_rr_info info; + /** cache flush command bit */ + u16_t cache_flush; + /* Validity time in seconds */ + u32_t ttl; + /** Length of variable answer */ + u16_t rd_length; + /** Offset of start of variable answer in packet */ + u16_t rd_offset; +}; + +/** Callback function to add text to a reply, called when generating the reply */ +typedef void (*service_get_txt_fn_t)(struct mdns_service *service, void *txt_userdata); + +/** Callback function to let application know the result of probing network for name + * uniqueness, called with result MDNS_PROBING_SUCCESSFUL if no other node claimed + * use for the name for the netif or a service and is safe to use, or MDNS_PROBING_CONFLICT + * if another node is already using it and mdns is disabled on this interface */ +typedef void (*mdns_name_result_cb_t)(struct netif* netif, u8_t result, s8_t slot); + +void *mdns_get_service_txt_userdata(struct netif *netif, s8_t slot); + +void mdns_resp_init(void); + +void mdns_resp_register_name_result_cb(mdns_name_result_cb_t cb); + +err_t mdns_resp_add_netif(struct netif *netif, const char *hostname); +err_t mdns_resp_remove_netif(struct netif *netif); +err_t mdns_resp_rename_netif(struct netif *netif, const char *hostname); +int mdns_resp_netif_active(struct netif *netif); + +s8_t mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_proto proto, u16_t port, service_get_txt_fn_t txt_fn, void *txt_userdata); +err_t mdns_resp_del_service(struct netif *netif, u8_t slot); +err_t mdns_resp_rename_service(struct netif *netif, u8_t slot, const char *name); + +err_t mdns_resp_add_service_txtitem(struct mdns_service *service, const char *txt, u8_t txt_len); + +void mdns_resp_restart_delay(struct netif *netif, uint32_t delay); +void mdns_resp_restart(struct netif *netif); +void mdns_resp_announce(struct netif *netif); + +/** + * @ingroup mdns + * Announce IP settings have changed on netif. + * Call this in your callback registered by netif_set_status_callback(). + * No need to call this function when LWIP_NETIF_EXT_STATUS_CALLBACK==1, + * this handled automatically for you. + * @param netif The network interface where settings have changed. + */ +#define mdns_resp_netif_settings_changed(netif) mdns_resp_announce(netif) + +#if LWIP_MDNS_SEARCH +typedef void (*search_result_fn_t)(struct mdns_answer *answer, const char *varpart, int varlen, int flags, void *arg); +/* flags bits, both can be set! */ +#define MDNS_SEARCH_RESULT_FIRST 1 /* First answer in received frame. */ +#define MDNS_SEARCH_RESULT_LAST 2 /* Last answer. */ + +err_t mdns_search_service(const char *name, const char *service, enum mdns_sd_proto proto, + struct netif *netif, search_result_fn_t result_fn, void *arg, + u8_t *request_id); +void mdns_search_stop(u8_t request_id); + +#endif /* LWIP_MDNS_SEARCH */ + +#endif /* LWIP_MDNS_RESPONDER */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_MDNS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/mdns_domain.h b/middleware/lwip/src/include/lwip/apps/mdns_domain.h new file mode 100644 index 0000000..9fa804e --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/mdns_domain.h @@ -0,0 +1,80 @@ +/** + * @file + * MDNS responder - domain related functionalities + */ + + /* + * Copyright (c) 2015 Verisure Innovation AB + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Author: Jasper Verschueren + * + */ + +#ifndef LWIP_HDR_APPS_MDNS_DOMAIN_H +#define LWIP_HDR_APPS_MDNS_DOMAIN_H + +#include "lwip/apps/mdns_opts.h" +#include "lwip/apps/mdns_priv.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_MDNS_RESPONDER + +/* Domain methods - also visible for unit tests */ + +err_t mdns_domain_add_label(struct mdns_domain *domain, const char *label, u8_t len); +err_t mdns_domain_add_domain(struct mdns_domain *domain, struct mdns_domain *source); +err_t mdns_domain_add_string(struct mdns_domain *domain, const char *source); +u16_t mdns_readname(struct pbuf *p, u16_t offset, struct mdns_domain *domain); +void mdns_domain_debug_print(struct mdns_domain *domain); +int mdns_domain_eq(struct mdns_domain *a, struct mdns_domain *b); +#if LWIP_IPV4 +err_t mdns_build_reverse_v4_domain(struct mdns_domain *domain, const ip4_addr_t *addr); +#endif +#if LWIP_IPV6 +err_t mdns_build_reverse_v6_domain(struct mdns_domain *domain, const ip6_addr_t *addr); +#endif +err_t mdns_build_host_domain(struct mdns_domain *domain, struct mdns_host *mdns); +err_t mdns_build_dnssd_domain(struct mdns_domain *domain); +err_t mdns_build_service_domain(struct mdns_domain *domain, struct mdns_service *service, int include_name); +#if LWIP_MDNS_SEARCH +err_t mdns_build_request_domain(struct mdns_domain *domain, struct mdns_request *request, int include_name); +#endif +u16_t mdns_compress_domain(struct pbuf *pbuf, u16_t *offset, struct mdns_domain *domain); +err_t mdns_write_domain(struct mdns_outpacket *outpkt, struct mdns_domain *domain); + +#endif /* LWIP_MDNS_RESPONDER */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_MDNS_DOMAIN_H */ diff --git a/middleware/lwip/src/include/lwip/apps/mdns_opts.h b/middleware/lwip/src/include/lwip/apps/mdns_opts.h new file mode 100644 index 0000000..1eee3e3 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/mdns_opts.h @@ -0,0 +1,121 @@ +/** + * @file + * MDNS responder + */ + + /* + * Copyright (c) 2015 Verisure Innovation AB + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Author: Jasper Verschueren + * + */ + +#ifndef LWIP_HDR_APPS_MDNS_OPTS_H +#define LWIP_HDR_APPS_MDNS_OPTS_H + +#include "lwip/opt.h" + +/** + * @defgroup mdns_opts Options + * @ingroup mdns + * @{ + */ + +/** + * LWIP_MDNS_RESPONDER==1: Turn on multicast DNS module. UDP must be available for MDNS + * transport. IGMP is needed for IPv4 multicast. + */ +#ifndef LWIP_MDNS_RESPONDER +#define LWIP_MDNS_RESPONDER 0 +#endif /* LWIP_MDNS_RESPONDER */ + +/** The maximum number of services per netif */ +#ifndef MDNS_MAX_SERVICES +#define MDNS_MAX_SERVICES 1 +#endif + +/** The minimum delay between probes in ms. RFC 6762 require 250ms. + * In noisy WiFi environment, adding 30-50ms to this value help a lot for + * a successful Apple BCT tests. + */ +#ifndef MDNS_PROBE_DELAY_MS +#define MDNS_PROBE_DELAY_MS 250 +#endif + +/** The maximum number of received packets stored in chained list of known + * answers for pending truncated questions. This value define the size of + * the MDNS_PKTS mempool. + * Up to MDNS_MAX_STORED_PKTS pbuf can be stored in addition to TC questions + * that are pending. + */ +#ifndef MDNS_MAX_STORED_PKTS +#define MDNS_MAX_STORED_PKTS 4 +#endif + +/** Payload size allocated for each outgoing UDP packet. Will be allocated with + * PBUF_RAM and freed after packet was sent. + * According to RFC 6762, there is no reason to retain the 512 bytes restriction + * for link-local multicast packet. + * 512 bytes isn't enough when 2 services need to be probed. + */ +#ifndef MDNS_OUTPUT_PACKET_SIZE +#define MDNS_OUTPUT_PACKET_SIZE ((MDNS_MAX_SERVICES == 1) ? 512 : 1450) +#endif + +/** MDNS_RESP_USENETIF_EXTCALLBACK==1: register an ext_callback on the netif + * to automatically restart probing/announcing on status or address change. + */ +#ifndef MDNS_RESP_USENETIF_EXTCALLBACK +#define MDNS_RESP_USENETIF_EXTCALLBACK LWIP_NETIF_EXT_STATUS_CALLBACK +#endif + +/** + * LWIP_MDNS_SEARCH==1: Turn on search over multicast DNS module. + */ +#ifndef LWIP_MDNS_SEARCH +#define LWIP_MDNS_SEARCH 1 +#endif + +/** The maximum number of running requests */ +#ifndef MDNS_MAX_REQUESTS +#define MDNS_MAX_REQUESTS 2 +#endif + +/** + * MDNS_DEBUG: Enable debugging for multicast DNS. + */ +#ifndef MDNS_DEBUG +#define MDNS_DEBUG LWIP_DBG_OFF +#endif + +/** + * @} + */ + +#endif /* LWIP_HDR_APPS_MDNS_OPTS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/mdns_out.h b/middleware/lwip/src/include/lwip/apps/mdns_out.h new file mode 100644 index 0000000..e6a7e38 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/mdns_out.h @@ -0,0 +1,138 @@ +/** + * @file + * MDNS responder - output related functionalities + */ + + /* + * Copyright (c) 2015 Verisure Innovation AB + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Author: Jasper Verschueren + * + */ + +#ifndef LWIP_HDR_APPS_MDNS_OUT_H +#define LWIP_HDR_APPS_MDNS_OUT_H + +#include "lwip/apps/mdns_opts.h" +#include "lwip/apps/mdns_priv.h" +#include "lwip/netif.h" +#include "lwip/timeouts.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_MDNS_RESPONDER + +/** Bitmasks outmsg generation */ +/* Probe for ALL types with hostname */ +#define QUESTION_PROBE_HOST_ANY 0x10 +/* Probe for ALL types with service instance name */ +#define QUESTION_PROBE_SERVICE_NAME_ANY 0x10 + +/* Lookup from hostname -> IPv4 */ +#define REPLY_HOST_A 0x01 +/* Lookup from IPv4/v6 -> hostname */ +#define REPLY_HOST_PTR_V4 0x02 +/* Lookup from hostname -> IPv6 */ +#define REPLY_HOST_AAAA 0x04 +/* Lookup from hostname -> IPv6 */ +#define REPLY_HOST_PTR_V6 0x08 + +/* Lookup for service types */ +#define REPLY_SERVICE_TYPE_PTR 0x10 +/* Lookup for instances of service */ +#define REPLY_SERVICE_NAME_PTR 0x20 +/* Lookup for location of service instance */ +#define REPLY_SERVICE_SRV 0x40 +/* Lookup for text info on service instance */ +#define REPLY_SERVICE_TXT 0x80 + +/* RFC6762 section 6: + * To protect the network against excessive packet flooding due to software bugs + * or malicious attack, a Multicast DNS responder MUST NOT (except in the one + * special case of answering probe queries) multicast a record on a given + * interface until at least one second has elapsed since the last time that + * record was multicast on that particular interface. + */ +#define MDNS_MULTICAST_TIMEOUT 1000 + +/* RFC6762 section 6: + * In this special case only, when responding via multicast to a probe, a + * Multicast DNS responder is only required to delay its transmission as + * necessary to ensure an interval of at least 250 ms since the last time the + * record was multicast on that interface. + */ +#define MDNS_MULTICAST_PROBE_TIMEOUT 250 + +/* RFC6762 section 5.4: + * When receiving a question with the unicast-response bit set, a responder + * SHOULD usually respond with a unicast packet directed back to the querier. + * However, if the responder has not multicast that record recently (within one + * quarter of its TTL), then the responder SHOULD instead multicast the response + * so as to keep all the peer caches up to date, and to permit passive conflict + * detection. + * -> we implement a stripped down version. Depending on a timeout of 30s + * (25% of 120s) all QU questions are send via multicast or unicast. + */ +#define MDNS_MULTICAST_TIMEOUT_25TTL 30000 + +err_t mdns_create_outpacket(struct netif *netif, struct mdns_outmsg *msg, + struct mdns_outpacket *outpkt); +err_t mdns_send_outpacket(struct mdns_outmsg *msg, struct netif *netif); +void mdns_set_timeout(struct netif *netif, u32_t msecs, + sys_timeout_handler handler, u8_t *busy_flag); +#if LWIP_IPV4 +void mdns_multicast_timeout_reset_ipv4(void *arg); +void mdns_multicast_probe_timeout_reset_ipv4(void *arg); +void mdns_multicast_timeout_25ttl_reset_ipv4(void *arg); +void mdns_send_multicast_msg_delayed_ipv4(void *arg); +void mdns_send_unicast_msg_delayed_ipv4(void *arg); +void mdns_start_multicast_timeouts_ipv4(struct netif *netif); +#endif +#if LWIP_IPV6 +void mdns_multicast_timeout_reset_ipv6(void *arg); +void mdns_multicast_probe_timeout_reset_ipv6(void *arg); +void mdns_multicast_timeout_25ttl_reset_ipv6(void *arg); +void mdns_send_multicast_msg_delayed_ipv6(void *arg); +void mdns_send_unicast_msg_delayed_ipv6(void *arg); +void mdns_start_multicast_timeouts_ipv6(struct netif *netif); +#endif +void mdns_prepare_txtdata(struct mdns_service *service); +#ifdef LWIP_MDNS_SEARCH +err_t mdns_send_request(struct mdns_request *req, struct netif *netif, const ip_addr_t *destination); +#endif + +#endif /* LWIP_MDNS_RESPONDER */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_MDNS_OUT_H */ diff --git a/middleware/lwip/src/include/lwip/apps/mdns_priv.h b/middleware/lwip/src/include/lwip/apps/mdns_priv.h new file mode 100644 index 0000000..5209ba0 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/mdns_priv.h @@ -0,0 +1,237 @@ +/** + * @file + * MDNS responder private definitions + */ + + /* + * Copyright (c) 2015 Verisure Innovation AB + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Author: Jasper Verschueren + * + */ +#ifndef LWIP_HDR_MDNS_PRIV_H +#define LWIP_HDR_MDNS_PRIV_H + +#include "lwip/apps/mdns.h" +#include "lwip/apps/mdns_opts.h" +#include "lwip/pbuf.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_MDNS_RESPONDER + +#define MDNS_READNAME_ERROR 0xFFFF +#define NUM_DOMAIN_OFFSETS 10 + +#define SRV_PRIORITY 0 +#define SRV_WEIGHT 0 + +/* mDNS TTL: (RFC6762 section 10) + * - 120 seconds if the hostname appears somewhere in the RR + * - 75 minutes if not (4500 seconds) + * - 10 seconds if responding to a legacy query + */ +#define MDNS_TTL_10 10 +#define MDNS_TTL_120 120 +#define MDNS_TTL_4500 4500 + +/* RFC6762 section 8.1: If fifteen conflicts occur within any ten-second period, + * then the host MUST wait at least five seconds before each successive + * additional probe attempt. + */ +#define MDNS_PROBE_MAX_CONFLICTS_BEFORE_RATE_LIMIT 15 +#define MDNS_PROBE_MAX_CONFLICTS_TIME_WINDOW 10000 +#define MDNS_PROBE_MAX_CONFLICTS_TIMEOUT 5000 + +#if LWIP_MDNS_SEARCH +/** Description of a search request */ +struct mdns_request { + /** Name of service, like 'myweb' */ + char name[MDNS_LABEL_MAXLEN + 1]; + /** Type of service, like '_http' or '_services._dns-sd' */ + struct mdns_domain service; + /** Callback function called for each response */ + search_result_fn_t result_fn; + void *arg; + /** Protocol, TCP or UDP */ + u16_t proto; + /** Query type (PTR, SRV, ...) */ + u8_t qtype; + /** PTR only request. */ + u16_t only_ptr; +}; +#endif + +/** Description of a service */ +struct mdns_service { + /** TXT record to answer with */ + struct mdns_domain txtdata; + /** Name of service, like 'myweb' */ + char name[MDNS_LABEL_MAXLEN + 1]; + /** Type of service, like '_http' */ + char service[MDNS_LABEL_MAXLEN + 1]; + /** Callback function and userdata + * to update txtdata buffer */ + service_get_txt_fn_t txt_fn; + void *txt_userdata; + /** Protocol, TCP or UDP */ + u16_t proto; + /** Port of the service */ + u16_t port; +}; + +/** mDNS output packet */ +struct mdns_outpacket { + /** Packet data */ + struct pbuf *pbuf; + /** Current write offset in packet */ + u16_t write_offset; + /** Number of questions written */ + u16_t questions; + /** Number of normal answers written */ + u16_t answers; + /** Number of authoritative answers written */ + u16_t authoritative; + /** Number of additional answers written */ + u16_t additional; + /** Offsets for written domain names in packet. + * Used for compression */ + u16_t domain_offsets[NUM_DOMAIN_OFFSETS]; +}; + +/** mDNS output message */ +struct mdns_outmsg { + /** Identifier. Used in legacy queries */ + u16_t tx_id; + /** dns flags */ + u8_t flags; + /** Destination IP/port if sent unicast */ + ip_addr_t dest_addr; + u16_t dest_port; + /** If all answers in packet should set cache_flush bit */ + u8_t cache_flush; + /** If reply should be sent unicast (as requested) */ + u8_t unicast_reply_requested; + /** If legacy query. (tx_id needed, and write + * question again in reply before answer) */ + u8_t legacy_query; + /** If the query is a probe msg we need to respond immediately. Independent of + * the QU or QM flag. */ + u8_t probe_query_recv; + /* Question bitmask for host information */ + u8_t host_questions; + /* Questions bitmask per service */ + u8_t serv_questions[MDNS_MAX_SERVICES]; + /* Reply bitmask for host information */ + u8_t host_replies; + /* Bitmask for which reverse IPv6 hosts to answer */ + u8_t host_reverse_v6_replies; + /* Reply bitmask per service */ + u8_t serv_replies[MDNS_MAX_SERVICES]; +#ifdef LWIP_MDNS_SEARCH + /** Search query to send */ + struct mdns_request *query; +#endif +}; + +/** Delayed msg info */ +struct mdns_delayed_msg { + /** Signals if a multicast msg needs to be send out */ + u8_t multicast_msg_waiting; + /** Multicast timeout for all multicast traffic except probe answers */ + u8_t multicast_timeout; + /** Multicast timeout only for probe answers */ + u8_t multicast_probe_timeout; + /** Output msg used for delayed multicast responses */ + struct mdns_outmsg delayed_msg_multicast; + /** Prefer multicast over unicast timeout -> 25% of TTL = we take 30s as + general delay. */ + u8_t multicast_timeout_25TTL; + /** Only send out new unicast message if previous was send */ + u8_t unicast_msg_in_use; + /** Output msg used for delayed unicast responses */ + struct mdns_outmsg delayed_msg_unicast; +}; + +/* MDNS states */ +typedef enum { + /* MDNS module is off */ + MDNS_STATE_OFF, + /* Waiting before probing can be started */ + MDNS_STATE_PROBE_WAIT, + /* Probing the unique records */ + MDNS_STATE_PROBING, + /* Waiting before announcing the probed unique records */ + MDNS_STATE_ANNOUNCE_WAIT, + /* Announcing all records */ + MDNS_STATE_ANNOUNCING, + /* Probing and announcing completed */ + MDNS_STATE_COMPLETE +} mdns_resp_state_enum_t; + +/** Description of a host/netif */ +struct mdns_host { + /** Hostname */ + char name[MDNS_LABEL_MAXLEN + 1]; + /** Pointer to services */ + struct mdns_service *services[MDNS_MAX_SERVICES]; + /** Number of probes/announces sent for the current name */ + u8_t sent_num; + /** State of the mdns responder */ + mdns_resp_state_enum_t state; +#if LWIP_IPV4 + /** delayed msg struct for IPv4 */ + struct mdns_delayed_msg ipv4; +#endif +#if LWIP_IPV6 + /** delayed msg struct for IPv6 */ + struct mdns_delayed_msg ipv6; +#endif + /** Timestamp of probe conflict saved in list */ + u32_t conflict_time[MDNS_PROBE_MAX_CONFLICTS_BEFORE_RATE_LIMIT]; + /** Rate limit flag */ + u8_t rate_limit_activated; + /** List index for timestamps */ + u8_t index; + /** number of conflicts since startup */ + u8_t num_conflicts; +}; + +struct mdns_host* netif_mdns_data(struct netif *netif); +struct udp_pcb* get_mdns_pcb(void); + +#endif /* LWIP_MDNS_RESPONDER */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_MDNS_PRIV_H */ diff --git a/middleware/lwip/src/include/lwip/apps/mqtt.h b/middleware/lwip/src/include/lwip/apps/mqtt.h new file mode 100644 index 0000000..f099812 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/mqtt.h @@ -0,0 +1,205 @@ +/** + * @file + * MQTT client + */ + +/* + * Copyright (c) 2016 Erik Andersson + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Andersson + * + */ +#ifndef LWIP_HDR_APPS_MQTT_CLIENT_H +#define LWIP_HDR_APPS_MQTT_CLIENT_H + +#include "lwip/apps/mqtt_opts.h" +#include "lwip/err.h" +#include "lwip/ip_addr.h" +#include "lwip/prot/iana.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct mqtt_client_s mqtt_client_t; + +#if LWIP_ALTCP && LWIP_ALTCP_TLS +struct altcp_tls_config; +#endif + +/** @ingroup mqtt + * Default MQTT port (non-TLS) */ +#define MQTT_PORT LWIP_IANA_PORT_MQTT +/** @ingroup mqtt + * Default MQTT TLS port */ +#define MQTT_TLS_PORT LWIP_IANA_PORT_SECURE_MQTT + +/*---------------------------------------------------------------------------------------------- */ +/* Connection with server */ + +/** + * @ingroup mqtt + * Client information and connection parameters */ +struct mqtt_connect_client_info_t { + /** Client identifier, must be set by caller */ + const char *client_id; + /** User name, set to NULL if not used */ + const char* client_user; + /** Password, set to NULL if not used */ + const char* client_pass; + /** keep alive time in seconds, 0 to disable keep alive functionality*/ + u16_t keep_alive; + /** will topic, set to NULL if will is not to be used, + will_msg, will_qos and will retain are then ignored */ + const char* will_topic; + /** will_msg, see will_topic */ + const char* will_msg; + /** will_qos, see will_topic */ + u8_t will_qos; + /** will_retain, see will_topic */ + u8_t will_retain; +#if LWIP_ALTCP && LWIP_ALTCP_TLS + /** TLS configuration for secure connections */ + struct altcp_tls_config *tls_config; +#endif +}; + +/** + * @ingroup mqtt + * Connection status codes */ +typedef enum +{ + /** Accepted */ + MQTT_CONNECT_ACCEPTED = 0, + /** Refused protocol version */ + MQTT_CONNECT_REFUSED_PROTOCOL_VERSION = 1, + /** Refused identifier */ + MQTT_CONNECT_REFUSED_IDENTIFIER = 2, + /** Refused server */ + MQTT_CONNECT_REFUSED_SERVER = 3, + /** Refused user credentials */ + MQTT_CONNECT_REFUSED_USERNAME_PASS = 4, + /** Refused not authorized */ + MQTT_CONNECT_REFUSED_NOT_AUTHORIZED_ = 5, + /** Disconnected */ + MQTT_CONNECT_DISCONNECTED = 256, + /** Timeout */ + MQTT_CONNECT_TIMEOUT = 257 +} mqtt_connection_status_t; + +/** + * @ingroup mqtt + * Function prototype for mqtt connection status callback. Called when + * client has connected to the server after initiating a mqtt connection attempt by + * calling mqtt_client_connect() or when connection is closed by server or an error + * + * @param client MQTT client itself + * @param arg Additional argument to pass to the callback function + * @param status Connect result code or disconnection notification @see mqtt_connection_status_t + * + */ +typedef void (*mqtt_connection_cb_t)(mqtt_client_t *client, void *arg, mqtt_connection_status_t status); + + +/** + * @ingroup mqtt + * Data callback flags */ +enum { + /** Flag set when last fragment of data arrives in data callback */ + MQTT_DATA_FLAG_LAST = 1 +}; + +/** + * @ingroup mqtt + * Function prototype for MQTT incoming publish data callback function. Called when data + * arrives to a subscribed topic @see mqtt_subscribe + * + * @param arg Additional argument to pass to the callback function + * @param data User data, pointed object, data may not be referenced after callback return, + NULL is passed when all publish data are delivered + * @param len Length of publish data fragment + * @param flags MQTT_DATA_FLAG_LAST set when this call contains the last part of data from publish message + * + */ +typedef void (*mqtt_incoming_data_cb_t)(void *arg, const u8_t *data, u16_t len, u8_t flags); + + +/** + * @ingroup mqtt + * Function prototype for MQTT incoming publish function. Called when an incoming publish + * arrives to a subscribed topic @see mqtt_subscribe + * + * @param arg Additional argument to pass to the callback function + * @param topic Zero terminated Topic text string, topic may not be referenced after callback return + * @param tot_len Total length of publish data, if set to 0 (no publish payload) data callback will not be invoked + */ +typedef void (*mqtt_incoming_publish_cb_t)(void *arg, const char *topic, u32_t tot_len); + + +/** + * @ingroup mqtt + * Function prototype for mqtt request callback. Called when a subscribe, unsubscribe + * or publish request has completed + * @param arg Pointer to user data supplied when invoking request + * @param err ERR_OK on success + * ERR_TIMEOUT if no response was received within timeout, + * ERR_ABRT if (un)subscribe was denied + */ +typedef void (*mqtt_request_cb_t)(void *arg, err_t err); + + +err_t mqtt_client_connect(mqtt_client_t *client, const ip_addr_t *ipaddr, u16_t port, mqtt_connection_cb_t cb, void *arg, + const struct mqtt_connect_client_info_t *client_info); + +void mqtt_disconnect(mqtt_client_t *client); + +mqtt_client_t *mqtt_client_new(void); +void mqtt_client_free(mqtt_client_t* client); + +u8_t mqtt_client_is_connected(mqtt_client_t *client); + +void mqtt_set_inpub_callback(mqtt_client_t *client, mqtt_incoming_publish_cb_t, + mqtt_incoming_data_cb_t data_cb, void *arg); + +err_t mqtt_sub_unsub(mqtt_client_t *client, const char *topic, u8_t qos, mqtt_request_cb_t cb, void *arg, u8_t sub); + +/** @ingroup mqtt + *Subscribe to topic */ +#define mqtt_subscribe(client, topic, qos, cb, arg) mqtt_sub_unsub(client, topic, qos, cb, arg, 1) +/** @ingroup mqtt + * Unsubscribe to topic */ +#define mqtt_unsubscribe(client, topic, cb, arg) mqtt_sub_unsub(client, topic, 0, cb, arg, 0) + +err_t mqtt_publish(mqtt_client_t *client, const char *topic, const void *payload, u16_t payload_length, u8_t qos, u8_t retain, + mqtt_request_cb_t cb, void *arg); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_MQTT_CLIENT_H */ diff --git a/middleware/lwip/src/include/lwip/apps/mqtt_opts.h b/middleware/lwip/src/include/lwip/apps/mqtt_opts.h new file mode 100644 index 0000000..4226d21 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/mqtt_opts.h @@ -0,0 +1,103 @@ +/** + * @file + * MQTT client options + */ + +/* + * Copyright (c) 2016 Erik Andersson + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Andersson + * + */ +#ifndef LWIP_HDR_APPS_MQTT_OPTS_H +#define LWIP_HDR_APPS_MQTT_OPTS_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup mqtt_opts Options + * @ingroup mqtt + * @{ + */ + +/** + * Output ring-buffer size, must be able to fit largest outgoing publish message topic+payloads + */ +#ifndef MQTT_OUTPUT_RINGBUF_SIZE +#define MQTT_OUTPUT_RINGBUF_SIZE 256 +#endif + +/** + * Number of bytes in receive buffer, must be at least the size of the longest incoming topic + 8 + * If one wants to avoid fragmented incoming publish, set length to max incoming topic length + max payload length + 8 + */ +#ifndef MQTT_VAR_HEADER_BUFFER_LEN +#define MQTT_VAR_HEADER_BUFFER_LEN 128 +#endif + +/** + * Maximum number of pending subscribe, unsubscribe and publish requests to server . + */ +#ifndef MQTT_REQ_MAX_IN_FLIGHT +#define MQTT_REQ_MAX_IN_FLIGHT 4 +#endif + +/** + * Seconds between each cyclic timer call. + */ +#ifndef MQTT_CYCLIC_TIMER_INTERVAL +#define MQTT_CYCLIC_TIMER_INTERVAL 5 +#endif + +/** + * Publish, subscribe and unsubscribe request timeout in seconds. + */ +#ifndef MQTT_REQ_TIMEOUT +#define MQTT_REQ_TIMEOUT 30 +#endif + +/** + * Seconds for MQTT connect response timeout after sending connect request + */ +#ifndef MQTT_CONNECT_TIMOUT +#define MQTT_CONNECT_TIMOUT 100 +#endif + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_MQTT_OPTS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/mqtt_priv.h b/middleware/lwip/src/include/lwip/apps/mqtt_priv.h new file mode 100644 index 0000000..b775913 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/mqtt_priv.h @@ -0,0 +1,104 @@ +/** + * @file + * MQTT client (private interface) + */ + +/* + * Copyright (c) 2016 Erik Andersson + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Andersson + * + */ +#ifndef LWIP_HDR_APPS_MQTT_PRIV_H +#define LWIP_HDR_APPS_MQTT_PRIV_H + +#include "lwip/apps/mqtt.h" +#include "lwip/altcp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** Pending request item, binds application callback to pending server requests */ +struct mqtt_request_t +{ + /** Next item in list, NULL means this is the last in chain, + next pointing at itself means request is unallocated */ + struct mqtt_request_t *next; + /** Callback to upper layer */ + mqtt_request_cb_t cb; + void *arg; + /** MQTT packet identifier */ + u16_t pkt_id; + /** Expire time relative to element before this */ + u16_t timeout_diff; +}; + +/** Ring buffer */ +struct mqtt_ringbuf_t { + u16_t put; + u16_t get; + u8_t buf[MQTT_OUTPUT_RINGBUF_SIZE]; +}; + +/** MQTT client */ +struct mqtt_client_s +{ + /** Timers and timeouts */ + u16_t cyclic_tick; + u16_t keep_alive; + u16_t server_watchdog; + /** Packet identifier generator*/ + u16_t pkt_id_seq; + /** Packet identifier of pending incoming publish */ + u16_t inpub_pkt_id; + /** Connection state */ + u8_t conn_state; + struct altcp_pcb *conn; + /** Connection callback */ + void *connect_arg; + mqtt_connection_cb_t connect_cb; + /** Pending requests to server */ + struct mqtt_request_t *pend_req_queue; + struct mqtt_request_t req_list[MQTT_REQ_MAX_IN_FLIGHT]; + void *inpub_arg; + /** Incoming data callback */ + mqtt_incoming_data_cb_t data_cb; + mqtt_incoming_publish_cb_t pub_cb; + /** Input */ + u32_t msg_idx; + u8_t rx_buffer[MQTT_VAR_HEADER_BUFFER_LEN]; + /** Output ring-buffer */ + struct mqtt_ringbuf_t output; +}; + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_MQTT_PRIV_H */ diff --git a/middleware/lwip/src/include/lwip/apps/netbiosns.h b/middleware/lwip/src/include/lwip/apps/netbiosns.h new file mode 100644 index 0000000..a326d33 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/netbiosns.h @@ -0,0 +1,51 @@ +/** + * @file + * NETBIOS name service responder + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ +#ifndef LWIP_HDR_APPS_NETBIOS_H +#define LWIP_HDR_APPS_NETBIOS_H + +#include "lwip/apps/netbiosns_opts.h" + +#ifdef __cplusplus +extern "C" { +#endif + +void netbiosns_init(void); +#ifndef NETBIOS_LWIP_NAME +void netbiosns_set_name(const char* hostname); +#endif +void netbiosns_stop(void); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_NETBIOS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/netbiosns_opts.h b/middleware/lwip/src/include/lwip/apps/netbiosns_opts.h new file mode 100644 index 0000000..cc0da95 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/netbiosns_opts.h @@ -0,0 +1,66 @@ +/** + * @file + * NETBIOS name service responder options + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ +#ifndef LWIP_HDR_APPS_NETBIOS_OPTS_H +#define LWIP_HDR_APPS_NETBIOS_OPTS_H + +#include "lwip/opt.h" + +/** + * @defgroup netbiosns_opts Options + * @ingroup netbiosns + * @{ + */ + +/** NetBIOS name of lwip device + * This must be uppercase until NETBIOS_STRCMP() is defined to a string + * comparison function that is case insensitive. + * If you want to use the netif's hostname, use this (with LWIP_NETIF_HOSTNAME): + * (ip_current_netif() != NULL ? ip_current_netif()->hostname != NULL ? ip_current_netif()->hostname : "" : "") + * + * If this is not defined, netbiosns_set_name() can be called at runtime to change the name. + */ +#ifdef __DOXYGEN__ +#define NETBIOS_LWIP_NAME "NETBIOSLWIPDEV" +#endif + +/** Respond to NetBIOS name queries + * Default is disabled + */ +#if !defined LWIP_NETBIOS_RESPOND_NAME_QUERY || defined __DOXYGEN__ +#define LWIP_NETBIOS_RESPOND_NAME_QUERY 0 +#endif + +/** + * @} + */ + +#endif /* LWIP_HDR_APPS_NETBIOS_OPTS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/smtp.h b/middleware/lwip/src/include/lwip/apps/smtp.h new file mode 100644 index 0000000..fb4a4a7 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/smtp.h @@ -0,0 +1,128 @@ +#ifndef LWIP_HDR_APPS_SMTP_H +#define LWIP_HDR_APPS_SMTP_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include "lwip/apps/smtp_opts.h" +#include "lwip/err.h" +#include "lwip/prot/iana.h" + +/** The default TCP port used for SMTP */ +#define SMTP_DEFAULT_PORT LWIP_IANA_PORT_SMTP +/** The default TCP port used for SMTPS */ +#define SMTPS_DEFAULT_PORT LWIP_IANA_PORT_SMTPS + +/** Email successfully sent */ +#define SMTP_RESULT_OK 0 +/** Unknown error */ +#define SMTP_RESULT_ERR_UNKNOWN 1 +/** Connection to server failed */ +#define SMTP_RESULT_ERR_CONNECT 2 +/** Failed to resolve server hostname */ +#define SMTP_RESULT_ERR_HOSTNAME 3 +/** Connection unexpectedly closed by remote server */ +#define SMTP_RESULT_ERR_CLOSED 4 +/** Connection timed out (server didn't respond in time) */ +#define SMTP_RESULT_ERR_TIMEOUT 5 +/** Server responded with an unknown response code */ +#define SMTP_RESULT_ERR_SVR_RESP 6 +/** Out of resources locally */ +#define SMTP_RESULT_ERR_MEM 7 + +/** Prototype of an smtp callback function + * + * @param arg argument specified when initiating the email + * @param smtp_result result of the mail transfer (see defines SMTP_RESULT_*) + * @param srv_err if aborted by the server, this contains the error code received + * @param err an error returned by internal lwip functions, can help to specify + * the source of the error but must not necessarily be != ERR_OK + */ +typedef void (*smtp_result_fn)(void *arg, u8_t smtp_result, u16_t srv_err, err_t err); + +/** This structure is used as argument for smtp_send_mail_int(), + * which in turn can be used with tcpip_callback() to send mail + * from interrupt context, e.g. like this: + * struct smtp_send_request *req; (to be filled) + * tcpip_try_callback(smtp_send_mail_int, (void*)req); + * + * For member description, see parameter description of smtp_send_mail(). + * When using with tcpip_callback, this structure has to stay allocated + * (e.g. using mem_malloc/mem_free) until its 'callback_fn' is called. + */ +struct smtp_send_request { + const char *from; + const char* to; + const char* subject; + const char* body; + smtp_result_fn callback_fn; + void* callback_arg; + /** If this is != 0, data is *not* copied into an extra buffer + * but used from the pointers supplied in this struct. + * This means less memory usage, but data must stay untouched until + * the callback function is called. */ + u8_t static_data; +}; + + +#if SMTP_BODYDH + +#ifndef SMTP_BODYDH_BUFFER_SIZE +#define SMTP_BODYDH_BUFFER_SIZE 256 +#endif /* SMTP_BODYDH_BUFFER_SIZE */ + +struct smtp_bodydh { + u16_t state; + u16_t length; /* Length of content in buffer */ + char buffer[SMTP_BODYDH_BUFFER_SIZE]; /* buffer for generated content */ +#ifdef SMTP_BODYDH_USER_SIZE + u8_t user[SMTP_BODYDH_USER_SIZE]; +#endif /* SMTP_BODYDH_USER_SIZE */ +}; + +enum bdh_retvals_e { + BDH_DONE = 0, + BDH_WORKING +}; + +/** Prototype of an smtp body callback function + * It receives a struct smtp_bodydh, and a buffer to write data, + * must return BDH_WORKING to be called again and BDH_DONE when + * it has finished processing. This one tries to fill one TCP buffer with + * data, your function will be repeatedly called until that happens; so if you + * know you'll be taking too long to serve your request, pause once in a while + * by writing length=0 to avoid hogging system resources + * + * @param arg argument specified when initiating the email + * @param smtp_bodydh state handling + buffer structure + */ +typedef int (*smtp_bodycback_fn)(void *arg, struct smtp_bodydh *bodydh); + +err_t smtp_send_mail_bodycback(const char *from, const char* to, const char* subject, + smtp_bodycback_fn bodycback_fn, smtp_result_fn callback_fn, void* callback_arg); + +#endif /* SMTP_BODYDH */ + + +err_t smtp_set_server_addr(const char* server); +void smtp_set_server_port(u16_t port); +#if LWIP_ALTCP && LWIP_ALTCP_TLS +struct altcp_tls_config; +void smtp_set_tls_config(struct altcp_tls_config *tls_config); +#endif +err_t smtp_set_auth(const char* username, const char* pass); +err_t smtp_send_mail(const char *from, const char* to, const char* subject, const char* body, + smtp_result_fn callback_fn, void* callback_arg); +err_t smtp_send_mail_static(const char *from, const char* to, const char* subject, const char* body, + smtp_result_fn callback_fn, void* callback_arg); +void smtp_send_mail_int(void *arg); +#ifdef LWIP_DEBUG +const char* smtp_result_str(u8_t smtp_result); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_SMTP_H */ diff --git a/middleware/lwip/src/include/lwip/apps/smtp_opts.h b/middleware/lwip/src/include/lwip/apps/smtp_opts.h new file mode 100644 index 0000000..c588fb9 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/smtp_opts.h @@ -0,0 +1,80 @@ +#ifndef LWIP_HDR_APPS_SMTP_OPTS_H +#define LWIP_HDR_APPS_SMTP_OPTS_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup smtp_opts Options + * @ingroup smtp + * + * @{ + */ + +/** Set this to 1 to enable data handler callback on BODY */ +#ifndef SMTP_BODYDH +#define SMTP_BODYDH 0 +#endif + +/** SMTP_DEBUG: Enable debugging for SNTP. */ +#ifndef SMTP_DEBUG +#define SMTP_DEBUG LWIP_DBG_OFF +#endif + +/** Maximum length reserved for server name including terminating 0 byte */ +#ifndef SMTP_MAX_SERVERNAME_LEN +#define SMTP_MAX_SERVERNAME_LEN 256 +#endif + +/** Maximum length reserved for username */ +#ifndef SMTP_MAX_USERNAME_LEN +#define SMTP_MAX_USERNAME_LEN 32 +#endif + +/** Maximum length reserved for password */ +#ifndef SMTP_MAX_PASS_LEN +#define SMTP_MAX_PASS_LEN 32 +#endif + +/** Set this to 0 if you know the authentication data will not change + * during the smtp session, which saves some heap space. */ +#ifndef SMTP_COPY_AUTHDATA +#define SMTP_COPY_AUTHDATA 1 +#endif + +/** Set this to 0 to save some code space if you know for sure that all data + * passed to this module conforms to the requirements in the SMTP RFC. + * WARNING: use this with care! + */ +#ifndef SMTP_CHECK_DATA +#define SMTP_CHECK_DATA 1 +#endif + +/** Set this to 1 to enable AUTH PLAIN support */ +#ifndef SMTP_SUPPORT_AUTH_PLAIN +#define SMTP_SUPPORT_AUTH_PLAIN 1 +#endif + +/** Set this to 1 to enable AUTH LOGIN support */ +#ifndef SMTP_SUPPORT_AUTH_LOGIN +#define SMTP_SUPPORT_AUTH_LOGIN 1 +#endif + +/* Memory allocation/deallocation can be overridden... */ +#ifndef SMTP_STATE_MALLOC +#define SMTP_STATE_MALLOC(size) mem_malloc(size) +#define SMTP_STATE_FREE(ptr) mem_free(ptr) +#endif + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* SMTP_OPTS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/snmp.h b/middleware/lwip/src/include/lwip/apps/snmp.h new file mode 100644 index 0000000..dc5bb0d --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/snmp.h @@ -0,0 +1,145 @@ +/** + * @file + * SNMP server main API - start and basic configuration + */ + +/* + * Copyright (c) 2001, 2002 Leon Woestenberg + * Copyright (c) 2001, 2002 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Leon Woestenberg + * Martin Hentschel + * + */ +#ifndef LWIP_HDR_APPS_SNMP_H +#define LWIP_HDR_APPS_SNMP_H + +#include "lwip/apps/snmp_opts.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/err.h" +#include "lwip/apps/snmp_core.h" + +/** SNMP variable binding descriptor (publicly needed for traps) */ +struct snmp_varbind +{ + /** pointer to next varbind, NULL for last in list */ + struct snmp_varbind *next; + /** pointer to previous varbind, NULL for first in list */ + struct snmp_varbind *prev; + + /** object identifier */ + struct snmp_obj_id oid; + + /** value ASN1 type */ + u8_t type; + /** object value length */ + u16_t value_len; + /** object value */ + void *value; +}; + +/** + * @ingroup snmp_core + * Agent setup, start listening to port 161. + */ +void snmp_init(void); +void snmp_set_mibs(const struct snmp_mib **mibs, u8_t num_mibs); + +void snmp_set_device_enterprise_oid(const struct snmp_obj_id* device_enterprise_oid); +const struct snmp_obj_id* snmp_get_device_enterprise_oid(void); + +void snmp_trap_dst_enable(u8_t dst_idx, u8_t enable); +void snmp_trap_dst_ip_set(u8_t dst_idx, const ip_addr_t *dst); + +/** Generic trap: cold start */ +#define SNMP_GENTRAP_COLDSTART 0 +/** Generic trap: warm start */ +#define SNMP_GENTRAP_WARMSTART 1 +/** Generic trap: link down */ +#define SNMP_GENTRAP_LINKDOWN 2 +/** Generic trap: link up */ +#define SNMP_GENTRAP_LINKUP 3 +/** Generic trap: authentication failure */ +#define SNMP_GENTRAP_AUTH_FAILURE 4 +/** Generic trap: EGP neighbor lost */ +#define SNMP_GENTRAP_EGP_NEIGHBOR_LOSS 5 +/** Generic trap: enterprise specific */ +#define SNMP_GENTRAP_ENTERPRISE_SPECIFIC 6 + +err_t snmp_send_trap_generic(s32_t generic_trap); +err_t snmp_send_trap_specific(s32_t specific_trap, struct snmp_varbind *varbinds); +err_t snmp_send_trap(const struct snmp_obj_id* oid, s32_t generic_trap, s32_t specific_trap, struct snmp_varbind *varbinds); + +err_t snmp_send_inform_generic(s32_t generic_trap, struct snmp_varbind *varbinds, s32_t *ptr_request_id); +err_t snmp_send_inform_specific(s32_t specific_trap, struct snmp_varbind *varbinds, s32_t *ptr_request_id); +err_t snmp_send_inform(const struct snmp_obj_id* oid, s32_t generic_trap, s32_t specific_trap, struct snmp_varbind *varbinds, s32_t *ptr_request_id); +struct snmp_request; +typedef void (*snmp_inform_callback_fct)(struct snmp_request *request, void* callback_arg); +void snmp_set_inform_callback(snmp_inform_callback_fct inform_callback, void* callback_arg); + +void snmp_set_default_trap_version(u8_t snmp_version); +u8_t snmp_get_default_trap_version(void); + +#define SNMP_AUTH_TRAPS_DISABLED 0 +#define SNMP_AUTH_TRAPS_ENABLED 1 +void snmp_set_auth_traps_enabled(u8_t enable); +u8_t snmp_get_auth_traps_enabled(void); + +u8_t snmp_v1_enabled(void); +u8_t snmp_v2c_enabled(void); +u8_t snmp_v3_enabled(void); +void snmp_v1_enable(u8_t enable); +void snmp_v2c_enable(u8_t enable); +void snmp_v3_enable(u8_t enable); + +const char * snmp_get_community(void); +const char * snmp_get_community_write(void); +const char * snmp_get_community_trap(void); +void snmp_set_community(const char * const community); +void snmp_set_community_write(const char * const community); +void snmp_set_community_trap(const char * const community); + +void snmp_coldstart_trap(void); +void snmp_authfail_trap(void); + +typedef void (*snmp_write_callback_fct)(const u32_t* oid, u8_t oid_len, void* callback_arg); +void snmp_set_write_callback(snmp_write_callback_fct write_callback, void* callback_arg); + +#endif /* LWIP_SNMP */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_SNMP_H */ diff --git a/middleware/lwip/src/include/lwip/apps/snmp_core.h b/middleware/lwip/src/include/lwip/apps/snmp_core.h new file mode 100644 index 0000000..5a8a49f --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/snmp_core.h @@ -0,0 +1,377 @@ +/** + * @file + * SNMP core API for implementing MIBs + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Christiaan Simons + * Martin Hentschel + */ + +#ifndef LWIP_HDR_APPS_SNMP_CORE_H +#define LWIP_HDR_APPS_SNMP_CORE_H + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/ip_addr.h" +#include "lwip/err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* basic ASN1 defines */ +#define SNMP_ASN1_CLASS_UNIVERSAL 0x00 +#define SNMP_ASN1_CLASS_APPLICATION 0x40 +#define SNMP_ASN1_CLASS_CONTEXT 0x80 +#define SNMP_ASN1_CLASS_PRIVATE 0xC0 + +#define SNMP_ASN1_CONTENTTYPE_PRIMITIVE 0x00 +#define SNMP_ASN1_CONTENTTYPE_CONSTRUCTED 0x20 + +/* universal tags (from ASN.1 spec.) */ +#define SNMP_ASN1_UNIVERSAL_END_OF_CONTENT 0 +#define SNMP_ASN1_UNIVERSAL_INTEGER 2 +#define SNMP_ASN1_UNIVERSAL_OCTET_STRING 4 +#define SNMP_ASN1_UNIVERSAL_NULL 5 +#define SNMP_ASN1_UNIVERSAL_OBJECT_ID 6 +#define SNMP_ASN1_UNIVERSAL_SEQUENCE_OF 16 + +/* application specific (SNMP) tags (from SNMPv2-SMI) */ +#define SNMP_ASN1_APPLICATION_IPADDR 0 /* [APPLICATION 0] IMPLICIT OCTET STRING (SIZE (4)) */ +#define SNMP_ASN1_APPLICATION_COUNTER 1 /* [APPLICATION 1] IMPLICIT INTEGER (0..4294967295) => u32_t */ +#define SNMP_ASN1_APPLICATION_GAUGE 2 /* [APPLICATION 2] IMPLICIT INTEGER (0..4294967295) => u32_t */ +#define SNMP_ASN1_APPLICATION_TIMETICKS 3 /* [APPLICATION 3] IMPLICIT INTEGER (0..4294967295) => u32_t */ +#define SNMP_ASN1_APPLICATION_OPAQUE 4 /* [APPLICATION 4] IMPLICIT OCTET STRING */ +#define SNMP_ASN1_APPLICATION_COUNTER64 6 /* [APPLICATION 6] IMPLICIT INTEGER (0..18446744073709551615) */ + +/* context specific (SNMP) tags (from RFC 1905) */ +#define SNMP_ASN1_CONTEXT_VARBIND_NO_SUCH_INSTANCE 1 + +/* full ASN1 type defines */ +#define SNMP_ASN1_TYPE_END_OF_CONTENT (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_END_OF_CONTENT) +#define SNMP_ASN1_TYPE_INTEGER (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_INTEGER) +#define SNMP_ASN1_TYPE_OCTET_STRING (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_OCTET_STRING) +#define SNMP_ASN1_TYPE_NULL (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_NULL) +#define SNMP_ASN1_TYPE_OBJECT_ID (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_OBJECT_ID) +#define SNMP_ASN1_TYPE_SEQUENCE (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_UNIVERSAL_SEQUENCE_OF) +#define SNMP_ASN1_TYPE_IPADDR (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_IPADDR) +#define SNMP_ASN1_TYPE_IPADDRESS SNMP_ASN1_TYPE_IPADDR +#define SNMP_ASN1_TYPE_COUNTER (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_COUNTER) +#define SNMP_ASN1_TYPE_COUNTER32 SNMP_ASN1_TYPE_COUNTER +#define SNMP_ASN1_TYPE_GAUGE (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_GAUGE) +#define SNMP_ASN1_TYPE_GAUGE32 SNMP_ASN1_TYPE_GAUGE +#define SNMP_ASN1_TYPE_UNSIGNED32 SNMP_ASN1_TYPE_GAUGE +#define SNMP_ASN1_TYPE_TIMETICKS (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_TIMETICKS) +#define SNMP_ASN1_TYPE_OPAQUE (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_OPAQUE) +#if LWIP_HAVE_INT64 +#define SNMP_ASN1_TYPE_COUNTER64 (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_COUNTER64) +#endif + +#define SNMP_VARBIND_EXCEPTION_OFFSET 0xF0 +#define SNMP_VARBIND_EXCEPTION_MASK 0x0F + +/** error codes predefined by SNMP prot. */ +typedef enum { + SNMP_ERR_NOERROR = 0, +/* +outdated v1 error codes. do not use anmore! +#define SNMP_ERR_NOSUCHNAME 2 use SNMP_ERR_NOSUCHINSTANCE instead +#define SNMP_ERR_BADVALUE 3 use SNMP_ERR_WRONGTYPE,SNMP_ERR_WRONGLENGTH,SNMP_ERR_WRONGENCODING or SNMP_ERR_WRONGVALUE instead +#define SNMP_ERR_READONLY 4 use SNMP_ERR_NOTWRITABLE instead +*/ + SNMP_ERR_GENERROR = 5, + SNMP_ERR_NOACCESS = 6, + SNMP_ERR_WRONGTYPE = 7, + SNMP_ERR_WRONGLENGTH = 8, + SNMP_ERR_WRONGENCODING = 9, + SNMP_ERR_WRONGVALUE = 10, + SNMP_ERR_NOCREATION = 11, + SNMP_ERR_INCONSISTENTVALUE = 12, + SNMP_ERR_RESOURCEUNAVAILABLE = 13, + SNMP_ERR_COMMITFAILED = 14, + SNMP_ERR_UNDOFAILED = 15, + SNMP_ERR_NOTWRITABLE = 17, + SNMP_ERR_INCONSISTENTNAME = 18, + + SNMP_ERR_NOSUCHINSTANCE = SNMP_VARBIND_EXCEPTION_OFFSET + SNMP_ASN1_CONTEXT_VARBIND_NO_SUCH_INSTANCE +} snmp_err_t; + +/** internal object identifier representation */ +struct snmp_obj_id +{ + u8_t len; + u32_t id[SNMP_MAX_OBJ_ID_LEN]; +}; + +struct snmp_obj_id_const_ref +{ + u8_t len; + const u32_t* id; +}; + +extern const struct snmp_obj_id_const_ref snmp_zero_dot_zero; /* administrative identifier from SNMPv2-SMI */ + +/** SNMP variant value, used as reference in struct snmp_node_instance and table implementation */ +union snmp_variant_value +{ + void* ptr; + const void* const_ptr; + u32_t u32; + s32_t s32; +#if LWIP_HAVE_INT64 + u64_t u64; +#endif +}; + + +/** +SNMP MIB node types + tree node is the only node the stack can process in order to walk the tree, + all other nodes are assumed to be leaf nodes. + This cannot be an enum because users may want to define their own node types. +*/ +#define SNMP_NODE_TREE 0x00 +/* predefined leaf node types */ +#define SNMP_NODE_SCALAR 0x01 +#define SNMP_NODE_SCALAR_ARRAY 0x02 +#define SNMP_NODE_TABLE 0x03 +#define SNMP_NODE_THREADSYNC 0x04 + +/** node "base class" layout, the mandatory fields for a node */ +struct snmp_node +{ + /** one out of SNMP_NODE_TREE or any leaf node type (like SNMP_NODE_SCALAR) */ + u8_t node_type; + /** the number assigned to this node which used as part of the full OID */ + u32_t oid; +}; + +/** SNMP node instance access types */ +typedef enum { + SNMP_NODE_INSTANCE_ACCESS_READ = 1, + SNMP_NODE_INSTANCE_ACCESS_WRITE = 2, + SNMP_NODE_INSTANCE_READ_ONLY = SNMP_NODE_INSTANCE_ACCESS_READ, + SNMP_NODE_INSTANCE_READ_WRITE = (SNMP_NODE_INSTANCE_ACCESS_READ | SNMP_NODE_INSTANCE_ACCESS_WRITE), + SNMP_NODE_INSTANCE_WRITE_ONLY = SNMP_NODE_INSTANCE_ACCESS_WRITE, + SNMP_NODE_INSTANCE_NOT_ACCESSIBLE = 0 +} snmp_access_t; + +struct snmp_node_instance; + +typedef s16_t (*node_instance_get_value_method)(struct snmp_node_instance*, void*); +typedef snmp_err_t (*node_instance_set_test_method)(struct snmp_node_instance*, u16_t, void*); +typedef snmp_err_t (*node_instance_set_value_method)(struct snmp_node_instance*, u16_t, void*); +typedef void (*node_instance_release_method)(struct snmp_node_instance*); + +#define SNMP_GET_VALUE_RAW_DATA 0x4000 /* do not use 0x8000 because return value of node_instance_get_value_method is signed16 and 0x8000 would be the signed bit */ + +/** SNMP node instance */ +struct snmp_node_instance +{ + /** prefilled with the node, get_instance() is called on; may be changed by user to any value to pass an arbitrary node between calls to get_instance() and get_value/test_value/set_value */ + const struct snmp_node* node; + /** prefilled with the instance id requested; for get_instance() this is the exact oid requested; for get_next_instance() this is the relative starting point, stack expects relative oid of next node here */ + struct snmp_obj_id instance_oid; + + /** ASN type for this object (see snmp_asn1.h for definitions) */ + u8_t asn1_type; + /** one out of instance access types defined above (SNMP_NODE_INSTANCE_READ_ONLY,...) */ + snmp_access_t access; + + /** returns object value for the given object identifier. Return values <0 to indicate an error */ + node_instance_get_value_method get_value; + /** tests length and/or range BEFORE setting */ + node_instance_set_test_method set_test; + /** sets object value, only called when set_test() was successful */ + node_instance_set_value_method set_value; + /** called in any case when the instance is not required anymore by stack (useful for freeing memory allocated in get_instance/get_next_instance methods) */ + node_instance_release_method release_instance; + + /** reference to pass arbitrary value between calls to get_instance() and get_value/test_value/set_value */ + union snmp_variant_value reference; + /** see reference (if reference is a pointer, the length of underlying data may be stored here or anything else) */ + u32_t reference_len; +}; + + +/** SNMP tree node */ +struct snmp_tree_node +{ + /** inherited "base class" members */ + struct snmp_node node; + u16_t subnode_count; + const struct snmp_node* const *subnodes; +}; + +#define SNMP_CREATE_TREE_NODE(oid, subnodes) \ + {{ SNMP_NODE_TREE, (oid) }, \ + (u16_t)LWIP_ARRAYSIZE(subnodes), (subnodes) } + +#define SNMP_CREATE_EMPTY_TREE_NODE(oid) \ + {{ SNMP_NODE_TREE, (oid) }, \ + 0, NULL } + +/** SNMP leaf node */ +struct snmp_leaf_node +{ + /** inherited "base class" members */ + struct snmp_node node; + snmp_err_t (*get_instance)(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); + snmp_err_t (*get_next_instance)(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); +}; + +/** represents a single mib with its base oid and root node */ +struct snmp_mib +{ + const u32_t *base_oid; + u8_t base_oid_len; + const struct snmp_node *root_node; +}; + +#define SNMP_MIB_CREATE(oid_list, root_node) { (oid_list), (u8_t)LWIP_ARRAYSIZE(oid_list), root_node } + +/** OID range structure */ +struct snmp_oid_range +{ + u32_t min; + u32_t max; +}; + +/** checks if incoming OID length and values are in allowed ranges */ +u8_t snmp_oid_in_range(const u32_t *oid_in, u8_t oid_len, const struct snmp_oid_range *oid_ranges, u8_t oid_ranges_len); + +typedef enum { + SNMP_NEXT_OID_STATUS_SUCCESS, + SNMP_NEXT_OID_STATUS_NO_MATCH, + SNMP_NEXT_OID_STATUS_BUF_TO_SMALL +} snmp_next_oid_status_t; + +/** state for next_oid_init / next_oid_check functions */ +struct snmp_next_oid_state +{ + const u32_t* start_oid; + u8_t start_oid_len; + + u32_t* next_oid; + u8_t next_oid_len; + u8_t next_oid_max_len; + + snmp_next_oid_status_t status; + void* reference; +}; + +void snmp_next_oid_init(struct snmp_next_oid_state *state, + const u32_t *start_oid, u8_t start_oid_len, + u32_t *next_oid_buf, u8_t next_oid_max_len); +u8_t snmp_next_oid_precheck(struct snmp_next_oid_state *state, const u32_t *oid, u8_t oid_len); +u8_t snmp_next_oid_check(struct snmp_next_oid_state *state, const u32_t *oid, u8_t oid_len, void* reference); + +void snmp_oid_assign(struct snmp_obj_id* target, const u32_t *oid, u8_t oid_len); +void snmp_oid_combine(struct snmp_obj_id* target, const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len); +void snmp_oid_prefix(struct snmp_obj_id* target, const u32_t *oid, u8_t oid_len); +void snmp_oid_append(struct snmp_obj_id* target, const u32_t *oid, u8_t oid_len); +u8_t snmp_oid_equal(const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len); +s8_t snmp_oid_compare(const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len); + +#if LWIP_IPV4 +u8_t snmp_oid_to_ip4(const u32_t *oid, ip4_addr_t *ip); +void snmp_ip4_to_oid(const ip4_addr_t *ip, u32_t *oid); +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 +u8_t snmp_oid_to_ip6(const u32_t *oid, ip6_addr_t *ip); +void snmp_ip6_to_oid(const ip6_addr_t *ip, u32_t *oid); +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 || LWIP_IPV6 +u8_t snmp_ip_to_oid(const ip_addr_t *ip, u32_t *oid); +u8_t snmp_ip_port_to_oid(const ip_addr_t *ip, u16_t port, u32_t *oid); + +u8_t snmp_oid_to_ip(const u32_t *oid, u8_t oid_len, ip_addr_t *ip); +u8_t snmp_oid_to_ip_port(const u32_t *oid, u8_t oid_len, ip_addr_t *ip, u16_t *port); +#endif /* LWIP_IPV4 || LWIP_IPV6 */ + +struct netif; +u8_t netif_to_num(const struct netif *netif); + +snmp_err_t snmp_set_test_ok(struct snmp_node_instance* instance, u16_t value_len, void* value); /* generic function which can be used if test is always successful */ + +err_t snmp_decode_bits(const u8_t *buf, u32_t buf_len, u32_t *bit_value); +err_t snmp_decode_truthvalue(const s32_t *asn1_value, u8_t *bool_value); +u8_t snmp_encode_bits(u8_t *buf, u32_t buf_len, u32_t bit_value, u8_t bit_count); +u8_t snmp_encode_truthvalue(s32_t *asn1_value, u32_t bool_value); + +struct snmp_statistics +{ + u32_t inpkts; + u32_t outpkts; + u32_t inbadversions; + u32_t inbadcommunitynames; + u32_t inbadcommunityuses; + u32_t inasnparseerrs; + u32_t intoobigs; + u32_t innosuchnames; + u32_t inbadvalues; + u32_t inreadonlys; + u32_t ingenerrs; + u32_t intotalreqvars; + u32_t intotalsetvars; + u32_t ingetrequests; + u32_t ingetnexts; + u32_t insetrequests; + u32_t ingetresponses; + u32_t intraps; + u32_t outtoobigs; + u32_t outnosuchnames; + u32_t outbadvalues; + u32_t outgenerrs; + u32_t outgetrequests; + u32_t outgetnexts; + u32_t outsetrequests; + u32_t outgetresponses; + u32_t outtraps; +#if LWIP_SNMP_V3 + u32_t unsupportedseclevels; + u32_t notintimewindows; + u32_t unknownusernames; + u32_t unknownengineids; + u32_t wrongdigests; + u32_t decryptionerrors; +#endif +}; + +extern struct snmp_statistics snmp_stats; + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_SNMP */ + +#endif /* LWIP_HDR_APPS_SNMP_CORE_H */ diff --git a/middleware/lwip/src/include/lwip/apps/snmp_mib2.h b/middleware/lwip/src/include/lwip/apps/snmp_mib2.h new file mode 100644 index 0000000..453e519 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/snmp_mib2.h @@ -0,0 +1,78 @@ +/** + * @file + * SNMP MIB2 API + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ +#ifndef LWIP_HDR_APPS_SNMP_MIB2_H +#define LWIP_HDR_APPS_SNMP_MIB2_H + +#include "lwip/apps/snmp_opts.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ +#if SNMP_LWIP_MIB2 + +#include "lwip/apps/snmp_core.h" + +extern const struct snmp_mib mib2; + +#if SNMP_USE_NETCONN +#include "lwip/apps/snmp_threadsync.h" +void snmp_mib2_lwip_synchronizer(snmp_threadsync_called_fn fn, void* arg); +extern struct snmp_threadsync_instance snmp_mib2_lwip_locks; +#endif + +#ifndef SNMP_SYSSERVICES +#define SNMP_SYSSERVICES ((1 << 6) | (1 << 3) | ((IP_FORWARD) << 2)) +#endif + +void snmp_mib2_set_sysdescr(const u8_t* str, const u16_t* len); /* read-only be definition */ +void snmp_mib2_set_syscontact(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize); +void snmp_mib2_set_syscontact_readonly(const u8_t *ocstr, const u16_t *ocstrlen); +void snmp_mib2_set_sysname(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize); +void snmp_mib2_set_sysname_readonly(const u8_t *ocstr, const u16_t *ocstrlen); +void snmp_mib2_set_syslocation(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize); +void snmp_mib2_set_syslocation_readonly(const u8_t *ocstr, const u16_t *ocstrlen); + +#endif /* SNMP_LWIP_MIB2 */ +#endif /* LWIP_SNMP */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_SNMP_MIB2_H */ diff --git a/middleware/lwip/src/include/lwip/apps/snmp_opts.h b/middleware/lwip/src/include/lwip/apps/snmp_opts.h new file mode 100644 index 0000000..c892d22 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/snmp_opts.h @@ -0,0 +1,297 @@ +/** + * @file + * SNMP server options list + */ + +/* + * Copyright (c) 2015 Dirk Ziegelmeier + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ +#ifndef LWIP_HDR_SNMP_OPTS_H +#define LWIP_HDR_SNMP_OPTS_H + +#include "lwip/opt.h" + +/** + * @defgroup snmp_opts Options + * @ingroup snmp + * @{ + */ + +/** + * LWIP_SNMP==1: This enables the lwIP SNMP agent. UDP must be available + * for SNMP transport. + * If you want to use your own SNMP agent, leave this disabled. + * To integrate MIB2 of an external agent, you need to enable + * LWIP_MIB2_CALLBACKS and MIB2_STATS. This will give you the callbacks + * and statistics counters you need to get MIB2 working. + */ +#if !defined LWIP_SNMP || defined __DOXYGEN__ +#define LWIP_SNMP 0 +#endif + +/** + * SNMP_USE_NETCONN: Use netconn API instead of raw API. + * Makes SNMP agent run in a worker thread, so blocking operations + * can be done in MIB calls. + */ +#if !defined SNMP_USE_NETCONN || defined __DOXYGEN__ +#define SNMP_USE_NETCONN 0 +#endif + +/** + * SNMP_USE_RAW: Use raw API. + * SNMP agent does not run in a worker thread, so blocking operations + * should not be done in MIB calls. + */ +#if !defined SNMP_USE_RAW || defined __DOXYGEN__ +#define SNMP_USE_RAW 1 +#endif + +#if SNMP_USE_NETCONN && SNMP_USE_RAW +#error SNMP stack can use only one of the APIs {raw, netconn} +#endif + +#if LWIP_SNMP && !SNMP_USE_NETCONN && !SNMP_USE_RAW +#error SNMP stack needs a receive API and UDP {raw, netconn} +#endif + +#if SNMP_USE_NETCONN +/** + * SNMP_STACK_SIZE: Stack size of SNMP netconn worker thread + */ +#if !defined SNMP_STACK_SIZE || defined __DOXYGEN__ +#define SNMP_STACK_SIZE DEFAULT_THREAD_STACKSIZE +#endif + +/** + * SNMP_THREAD_PRIO: SNMP netconn worker thread priority + */ +#if !defined SNMP_THREAD_PRIO || defined __DOXYGEN__ +#define SNMP_THREAD_PRIO DEFAULT_THREAD_PRIO +#endif +#endif /* SNMP_USE_NETCONN */ + +/** + * SNMP_TRAP_DESTINATIONS: Number of trap destinations. At least one trap + * destination is required + */ +#if !defined SNMP_TRAP_DESTINATIONS || defined __DOXYGEN__ +#define SNMP_TRAP_DESTINATIONS 1 +#endif + +/** + * Only allow SNMP write actions that are 'safe' (e.g. disabling netifs is not + * a safe action and disabled when SNMP_SAFE_REQUESTS = 1). + * Unsafe requests are disabled by default! + */ +#if !defined SNMP_SAFE_REQUESTS || defined __DOXYGEN__ +#define SNMP_SAFE_REQUESTS 1 +#endif + +/** + * The maximum length of strings used. + */ +#if !defined SNMP_MAX_OCTET_STRING_LEN || defined __DOXYGEN__ +#define SNMP_MAX_OCTET_STRING_LEN 127 +#endif + +/** + * The maximum number of Sub ID's inside an object identifier. + * Indirectly this also limits the maximum depth of SNMP tree. + */ +#if !defined SNMP_MAX_OBJ_ID_LEN || defined __DOXYGEN__ +#define SNMP_MAX_OBJ_ID_LEN 50 +#endif + +#if !defined SNMP_MAX_VALUE_SIZE || defined __DOXYGEN__ +/** + * The minimum size of a value. + */ +#define SNMP_MIN_VALUE_SIZE (2 * sizeof(u32_t*)) /* size required to store the basic types (8 bytes for counter64) */ +/** + * The maximum size of a value. + */ +#define SNMP_MAX_VALUE_SIZE LWIP_MAX(LWIP_MAX((SNMP_MAX_OCTET_STRING_LEN), sizeof(u32_t)*(SNMP_MAX_OBJ_ID_LEN)), SNMP_MIN_VALUE_SIZE) +#endif + +/** + * The snmp read-access community. Used for write-access and traps, too + * unless SNMP_COMMUNITY_WRITE or SNMP_COMMUNITY_TRAP are enabled, respectively. + */ +#if !defined SNMP_COMMUNITY || defined __DOXYGEN__ +#define SNMP_COMMUNITY "public" +#endif + +/** + * The snmp write-access community. + * Set this community to "" in order to disallow any write access. + */ +#if !defined SNMP_COMMUNITY_WRITE || defined __DOXYGEN__ +#define SNMP_COMMUNITY_WRITE "private" +#endif + +/** + * The snmp community used for sending traps. + */ +#if !defined SNMP_COMMUNITY_TRAP || defined __DOXYGEN__ +#define SNMP_COMMUNITY_TRAP "public" +#endif + +/** + * The maximum length of community string. + * If community names shall be adjusted at runtime via snmp_set_community() calls, + * enter here the possible maximum length (+1 for terminating null character). + */ +#if !defined SNMP_MAX_COMMUNITY_STR_LEN || defined __DOXYGEN__ +#define SNMP_MAX_COMMUNITY_STR_LEN LWIP_MAX(LWIP_MAX(sizeof(SNMP_COMMUNITY), sizeof(SNMP_COMMUNITY_WRITE)), sizeof(SNMP_COMMUNITY_TRAP)) +#endif + +/** + * The OID identifiying the device. This may be the enterprise OID itself or any OID located below it in tree. + */ +#if !defined SNMP_DEVICE_ENTERPRISE_OID || defined __DOXYGEN__ +#define SNMP_LWIP_ENTERPRISE_OID 26381 +/** + * IANA assigned enterprise ID for lwIP is 26381 + * @see http://www.iana.org/assignments/enterprise-numbers + * + * @note this enterprise ID is assigned to the lwIP project, + * all object identifiers living under this ID are assigned + * by the lwIP maintainers! + * @note don't change this define, use snmp_set_device_enterprise_oid() + * + * If you need to create your own private MIB you'll need + * to apply for your own enterprise ID with IANA: + * http://www.iana.org/numbers.html + */ +#define SNMP_DEVICE_ENTERPRISE_OID {1, 3, 6, 1, 4, 1, SNMP_LWIP_ENTERPRISE_OID} +/** + * Length of SNMP_DEVICE_ENTERPRISE_OID + */ +#define SNMP_DEVICE_ENTERPRISE_OID_LEN 7 +#endif + +/** + * SNMP_DEBUG: Enable debugging for SNMP messages. + */ +#if !defined SNMP_DEBUG || defined __DOXYGEN__ +#define SNMP_DEBUG LWIP_DBG_OFF +#endif + +/** + * SNMP_MIB_DEBUG: Enable debugging for SNMP MIBs. + */ +#if !defined SNMP_MIB_DEBUG || defined __DOXYGEN__ +#define SNMP_MIB_DEBUG LWIP_DBG_OFF +#endif + +/** + * Indicates if the MIB2 implementation of LWIP SNMP stack is used. + */ +#if !defined SNMP_LWIP_MIB2 || defined __DOXYGEN__ +#define SNMP_LWIP_MIB2 LWIP_SNMP +#endif + +/** + * Value return for sysDesc field of MIB2. + */ +#if !defined SNMP_LWIP_MIB2_SYSDESC || defined __DOXYGEN__ +#define SNMP_LWIP_MIB2_SYSDESC "lwIP" +#endif + +/** + * Value return for sysName field of MIB2. + * To make sysName field settable, call snmp_mib2_set_sysname() to provide the necessary buffers. + */ +#if !defined SNMP_LWIP_MIB2_SYSNAME || defined __DOXYGEN__ +#define SNMP_LWIP_MIB2_SYSNAME "FQDN-unk" +#endif + +/** + * Value return for sysContact field of MIB2. + * To make sysContact field settable, call snmp_mib2_set_syscontact() to provide the necessary buffers. + */ +#if !defined SNMP_LWIP_MIB2_SYSCONTACT || defined __DOXYGEN__ +#define SNMP_LWIP_MIB2_SYSCONTACT "" +#endif + +/** + * Value return for sysLocation field of MIB2. + * To make sysLocation field settable, call snmp_mib2_set_syslocation() to provide the necessary buffers. + */ +#if !defined SNMP_LWIP_MIB2_SYSLOCATION || defined __DOXYGEN__ +#define SNMP_LWIP_MIB2_SYSLOCATION "" +#endif + +/** + * This value is used to limit the repetitions processed in GetBulk requests (value == 0 means no limitation). + * This may be useful to limit the load for a single request. + * According to SNMP RFC 1905 it is allowed to not return all requested variables from a GetBulk request if system load would be too high. + * so the effect is that the client will do more requests to gather all data. + * For the stack this could be useful in case that SNMP processing is done in TCP/IP thread. In this situation a request with many + * repetitions could block the thread for a longer time. Setting limit here will keep the stack more responsive. + */ +#if !defined SNMP_LWIP_GETBULK_MAX_REPETITIONS || defined __DOXYGEN__ +#define SNMP_LWIP_GETBULK_MAX_REPETITIONS 0 +#endif + +/** + * @} + */ + +/* + ------------------------------------ + ---------- SNMPv3 options ---------- + ------------------------------------ +*/ + +/** + * LWIP_SNMP_V3==1: This enables EXPERIMENTAL SNMPv3 support. LWIP_SNMP must + * also be enabled. + * THIS IS UNDER DEVELOPMENT AND SHOULD NOT BE ENABLED IN PRODUCTS. + */ +#ifndef LWIP_SNMP_V3 +#define LWIP_SNMP_V3 0 +#endif + +#ifndef LWIP_SNMP_V3_MBEDTLS +#define LWIP_SNMP_V3_MBEDTLS LWIP_SNMP_V3 +#endif + +#ifndef LWIP_SNMP_V3_CRYPTO +#define LWIP_SNMP_V3_CRYPTO LWIP_SNMP_V3_MBEDTLS +#endif + +#ifndef LWIP_SNMP_CONFIGURE_VERSIONS +#define LWIP_SNMP_CONFIGURE_VERSIONS 0 +#endif + +#endif /* LWIP_HDR_SNMP_OPTS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/snmp_scalar.h b/middleware/lwip/src/include/lwip/apps/snmp_scalar.h new file mode 100644 index 0000000..40a060c --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/snmp_scalar.h @@ -0,0 +1,113 @@ +/** + * @file + * SNMP server MIB API to implement scalar nodes + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Martin Hentschel + * + */ + +#ifndef LWIP_HDR_APPS_SNMP_SCALAR_H +#define LWIP_HDR_APPS_SNMP_SCALAR_H + +#include "lwip/apps/snmp_opts.h" +#include "lwip/apps/snmp_core.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +/** basic scalar node */ +struct snmp_scalar_node +{ + /** inherited "base class" members */ + struct snmp_leaf_node node; + u8_t asn1_type; + snmp_access_t access; + node_instance_get_value_method get_value; + node_instance_set_test_method set_test; + node_instance_set_value_method set_value; +}; + + +snmp_err_t snmp_scalar_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); +snmp_err_t snmp_scalar_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); + +#define SNMP_SCALAR_CREATE_NODE(oid, access, asn1_type, get_value_method, set_test_method, set_value_method) \ + {{{ SNMP_NODE_SCALAR, (oid) }, \ + snmp_scalar_get_instance, \ + snmp_scalar_get_next_instance }, \ + (asn1_type), (access), (get_value_method), (set_test_method), (set_value_method) } + +#define SNMP_SCALAR_CREATE_NODE_READONLY(oid, asn1_type, get_value_method) SNMP_SCALAR_CREATE_NODE(oid, SNMP_NODE_INSTANCE_READ_ONLY, asn1_type, get_value_method, NULL, NULL) + +/** scalar array node - a tree node which contains scalars only as children */ +struct snmp_scalar_array_node_def +{ + u32_t oid; + u8_t asn1_type; + snmp_access_t access; +}; + +typedef s16_t (*snmp_scalar_array_get_value_method)(const struct snmp_scalar_array_node_def*, void*); +typedef snmp_err_t (*snmp_scalar_array_set_test_method)(const struct snmp_scalar_array_node_def*, u16_t, void*); +typedef snmp_err_t (*snmp_scalar_array_set_value_method)(const struct snmp_scalar_array_node_def*, u16_t, void*); + +/** basic scalar array node */ +struct snmp_scalar_array_node +{ + /** inherited "base class" members */ + struct snmp_leaf_node node; + u16_t array_node_count; + const struct snmp_scalar_array_node_def* array_nodes; + snmp_scalar_array_get_value_method get_value; + snmp_scalar_array_set_test_method set_test; + snmp_scalar_array_set_value_method set_value; +}; + +snmp_err_t snmp_scalar_array_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); +snmp_err_t snmp_scalar_array_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); + +#define SNMP_SCALAR_CREATE_ARRAY_NODE(oid, array_nodes, get_value_method, set_test_method, set_value_method) \ + {{{ SNMP_NODE_SCALAR_ARRAY, (oid) }, \ + snmp_scalar_array_get_instance, \ + snmp_scalar_array_get_next_instance }, \ + (u16_t)LWIP_ARRAYSIZE(array_nodes), (array_nodes), (get_value_method), (set_test_method), (set_value_method) } + +#endif /* LWIP_SNMP */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_SNMP_SCALAR_H */ diff --git a/middleware/lwip/src/include/lwip/apps/snmp_snmpv2_framework.h b/middleware/lwip/src/include/lwip/apps/snmp_snmpv2_framework.h new file mode 100644 index 0000000..47409cc --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/snmp_snmpv2_framework.h @@ -0,0 +1,32 @@ +/* +Generated by LwipMibCompiler +*/ + +#ifndef LWIP_HDR_APPS_SNMP_FRAMEWORK_MIB_H +#define LWIP_HDR_APPS_SNMP_FRAMEWORK_MIB_H + +#include "lwip/apps/snmp_opts.h" +#if LWIP_SNMP + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +#include "lwip/apps/snmp_core.h" + +extern const struct snmp_obj_id usmNoAuthProtocol; +extern const struct snmp_obj_id usmHMACMD5AuthProtocol; +extern const struct snmp_obj_id usmHMACSHAAuthProtocol; + +extern const struct snmp_obj_id usmNoPrivProtocol; +extern const struct snmp_obj_id usmDESPrivProtocol; +extern const struct snmp_obj_id usmAESPrivProtocol; + +extern const struct snmp_mib snmpframeworkmib; + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* LWIP_SNMP */ +#endif /* LWIP_HDR_APPS_SNMP_FRAMEWORK_MIB_H */ diff --git a/middleware/lwip/src/include/lwip/apps/snmp_snmpv2_usm.h b/middleware/lwip/src/include/lwip/apps/snmp_snmpv2_usm.h new file mode 100644 index 0000000..88cfcd8 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/snmp_snmpv2_usm.h @@ -0,0 +1,24 @@ +/* +Generated by LwipMibCompiler +*/ + +#ifndef LWIP_HDR_APPS_SNMP_USER_BASED_SM_MIB_H +#define LWIP_HDR_APPS_SNMP_USER_BASED_SM_MIB_H + +#include "lwip/apps/snmp_opts.h" +#if LWIP_SNMP + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +#include "lwip/apps/snmp_core.h" + +extern const struct snmp_mib snmpusmmib; + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* LWIP_SNMP */ +#endif /* LWIP_HDR_APPS_SNMP_USER_BASED_SM_MIB_H */ diff --git a/middleware/lwip/src/include/lwip/apps/snmp_table.h b/middleware/lwip/src/include/lwip/apps/snmp_table.h new file mode 100644 index 0000000..4988b51 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/snmp_table.h @@ -0,0 +1,134 @@ +/** + * @file + * SNMP server MIB API to implement table nodes + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Martin Hentschel + * + */ + +#ifndef LWIP_HDR_APPS_SNMP_TABLE_H +#define LWIP_HDR_APPS_SNMP_TABLE_H + +#include "lwip/apps/snmp_opts.h" +#include "lwip/apps/snmp_core.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +/** default (customizable) read/write table */ +struct snmp_table_col_def +{ + u32_t index; + u8_t asn1_type; + snmp_access_t access; +}; + +/** table node */ +struct snmp_table_node +{ + /** inherited "base class" members */ + struct snmp_leaf_node node; + u16_t column_count; + const struct snmp_table_col_def* columns; + snmp_err_t (*get_cell_instance)(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, struct snmp_node_instance* cell_instance); + snmp_err_t (*get_next_cell_instance)(const u32_t* column, struct snmp_obj_id* row_oid, struct snmp_node_instance* cell_instance); + /** returns object value for the given object identifier */ + node_instance_get_value_method get_value; + /** tests length and/or range BEFORE setting */ + node_instance_set_test_method set_test; + /** sets object value, only called when set_test() was successful */ + node_instance_set_value_method set_value; +}; + +snmp_err_t snmp_table_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); +snmp_err_t snmp_table_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); + +#define SNMP_TABLE_CREATE(oid, columns, get_cell_instance_method, get_next_cell_instance_method, get_value_method, set_test_method, set_value_method) \ + {{{ SNMP_NODE_TABLE, (oid) }, \ + snmp_table_get_instance, \ + snmp_table_get_next_instance }, \ + (u16_t)LWIP_ARRAYSIZE(columns), (columns), \ + (get_cell_instance_method), (get_next_cell_instance_method), \ + (get_value_method), (set_test_method), (set_value_method)} + +#define SNMP_TABLE_GET_COLUMN_FROM_OID(oid) ((oid)[1]) /* first array value is (fixed) row entry (fixed to 1) and 2nd value is column, follow3ed by instance */ + + +/** simple read-only table */ +typedef enum { + SNMP_VARIANT_VALUE_TYPE_U32, + SNMP_VARIANT_VALUE_TYPE_S32, + SNMP_VARIANT_VALUE_TYPE_PTR, + SNMP_VARIANT_VALUE_TYPE_CONST_PTR +} snmp_table_column_data_type_t; + +struct snmp_table_simple_col_def +{ + u32_t index; + u8_t asn1_type; + snmp_table_column_data_type_t data_type; /* depending of what union member is used to store the value*/ +}; + +/** simple read-only table node */ +struct snmp_table_simple_node +{ + /* inherited "base class" members */ + struct snmp_leaf_node node; + u16_t column_count; + const struct snmp_table_simple_col_def* columns; + snmp_err_t (*get_cell_value)(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, union snmp_variant_value* value, u32_t* value_len); + snmp_err_t (*get_next_cell_instance_and_value)(const u32_t* column, struct snmp_obj_id* row_oid, union snmp_variant_value* value, u32_t* value_len); +}; + +snmp_err_t snmp_table_simple_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); +snmp_err_t snmp_table_simple_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); + +#define SNMP_TABLE_CREATE_SIMPLE(oid, columns, get_cell_value_method, get_next_cell_instance_and_value_method) \ + {{{ SNMP_NODE_TABLE, (oid) }, \ + snmp_table_simple_get_instance, \ + snmp_table_simple_get_next_instance }, \ + (u16_t)LWIP_ARRAYSIZE(columns), (columns), (get_cell_value_method), (get_next_cell_instance_and_value_method) } + +s16_t snmp_table_extract_value_from_s32ref(struct snmp_node_instance* instance, void* value); +s16_t snmp_table_extract_value_from_u32ref(struct snmp_node_instance* instance, void* value); +s16_t snmp_table_extract_value_from_refconstptr(struct snmp_node_instance* instance, void* value); + +#endif /* LWIP_SNMP */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_SNMP_TABLE_H */ diff --git a/middleware/lwip/src/include/lwip/apps/snmp_threadsync.h b/middleware/lwip/src/include/lwip/apps/snmp_threadsync.h new file mode 100644 index 0000000..76f1118 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/snmp_threadsync.h @@ -0,0 +1,114 @@ +/** + * @file + * SNMP server MIB API to implement thread synchronization + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#ifndef LWIP_HDR_APPS_SNMP_THREADSYNC_H +#define LWIP_HDR_APPS_SNMP_THREADSYNC_H + +#include "lwip/apps/snmp_opts.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/apps/snmp_core.h" +#include "lwip/sys.h" + +typedef void (*snmp_threadsync_called_fn)(void* arg); +typedef void (*snmp_threadsync_synchronizer_fn)(snmp_threadsync_called_fn fn, void* arg); + + +/** Thread sync runtime data. For internal usage only. */ +struct threadsync_data +{ + union { + snmp_err_t err; + s16_t s16; + } retval; + union { + const u32_t *root_oid; + void *value; + } arg1; + union { + u8_t root_oid_len; + u16_t len; + } arg2; + const struct snmp_threadsync_node *threadsync_node; + struct snmp_node_instance proxy_instance; +}; + +/** Thread sync instance. Needed EXACTLY once for every thread to be synced into. */ +struct snmp_threadsync_instance +{ + sys_sem_t sem; + sys_mutex_t sem_usage_mutex; + snmp_threadsync_synchronizer_fn sync_fn; + struct threadsync_data data; +}; + +/** SNMP thread sync proxy leaf node */ +struct snmp_threadsync_node +{ + /* inherited "base class" members */ + struct snmp_leaf_node node; + + const struct snmp_leaf_node *target; + struct snmp_threadsync_instance *instance; +}; + +snmp_err_t snmp_threadsync_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); +snmp_err_t snmp_threadsync_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); + +/** Create thread sync proxy node */ +#define SNMP_CREATE_THREAD_SYNC_NODE(oid, target_leaf_node, threadsync_instance) \ + {{{ SNMP_NODE_THREADSYNC, (oid) }, \ + snmp_threadsync_get_instance, \ + snmp_threadsync_get_next_instance }, \ + (target_leaf_node), \ + (threadsync_instance) } + +/** Create thread sync instance data */ +void snmp_threadsync_init(struct snmp_threadsync_instance *instance, snmp_threadsync_synchronizer_fn sync_fn); + +#endif /* LWIP_SNMP */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_SNMP_THREADSYNC_H */ diff --git a/middleware/lwip/src/include/lwip/apps/snmpv3.h b/middleware/lwip/src/include/lwip/apps/snmpv3.h new file mode 100644 index 0000000..e0dda64 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/snmpv3.h @@ -0,0 +1,114 @@ +/** + * @file + * Additional SNMPv3 functionality RFC3414 and RFC3826. + */ + +/* + * Copyright (c) 2016 Elias Oenal. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Elias Oenal + */ + +#ifndef LWIP_HDR_APPS_SNMP_V3_H +#define LWIP_HDR_APPS_SNMP_V3_H + +#include "lwip/apps/snmp_opts.h" +#include "lwip/err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_SNMP && LWIP_SNMP_V3 + +typedef enum +{ + SNMP_V3_AUTH_ALGO_INVAL = 0, + SNMP_V3_AUTH_ALGO_MD5 = 1, + SNMP_V3_AUTH_ALGO_SHA = 2 +} snmpv3_auth_algo_t; + +typedef enum +{ + SNMP_V3_PRIV_ALGO_INVAL = 0, + SNMP_V3_PRIV_ALGO_DES = 1, + SNMP_V3_PRIV_ALGO_AES = 2 +} snmpv3_priv_algo_t; + +typedef enum +{ + SNMP_V3_USER_STORAGETYPE_OTHER = 1, + SNMP_V3_USER_STORAGETYPE_VOLATILE = 2, + SNMP_V3_USER_STORAGETYPE_NONVOLATILE = 3, + SNMP_V3_USER_STORAGETYPE_PERMANENT = 4, + SNMP_V3_USER_STORAGETYPE_READONLY = 5 +} snmpv3_user_storagetype_t; + +/* + * The following callback functions must be implemented by the application. + * There is a dummy implementation in snmpv3_dummy.c. + */ + +void snmpv3_get_engine_id(const char **id, u8_t *len); +err_t snmpv3_set_engine_id(const char* id, u8_t len); + +u32_t snmpv3_get_engine_boots(void); +void snmpv3_set_engine_boots(u32_t boots); + +u32_t snmpv3_get_engine_time(void); +void snmpv3_reset_engine_time(void); + +err_t snmpv3_get_user(const char* username, snmpv3_auth_algo_t *auth_algo, u8_t *auth_key, snmpv3_priv_algo_t *priv_algo, u8_t *priv_key); +u8_t snmpv3_get_amount_of_users(void); +err_t snmpv3_get_user_storagetype(const char *username, snmpv3_user_storagetype_t *storagetype); +err_t snmpv3_get_username(char *username, u8_t index); + +/* The following functions are provided by the SNMPv3 agent */ + +void snmpv3_engine_id_changed(void); +s32_t snmpv3_get_engine_time_internal(void); + +void snmpv3_password_to_key_md5( + const u8_t *password, /* IN */ + size_t passwordlen, /* IN */ + const u8_t *engineID, /* IN - pointer to snmpEngineID */ + u8_t engineLength, /* IN - length of snmpEngineID */ + u8_t *key); /* OUT - pointer to caller 16-octet buffer */ + +void snmpv3_password_to_key_sha( + const u8_t *password, /* IN */ + size_t passwordlen, /* IN */ + const u8_t *engineID, /* IN - pointer to snmpEngineID */ + u8_t engineLength, /* IN - length of snmpEngineID */ + u8_t *key); /* OUT - pointer to caller 20-octet buffer */ + +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_SNMP_V3_H */ diff --git a/middleware/lwip/src/include/lwip/apps/sntp.h b/middleware/lwip/src/include/lwip/apps/sntp.h new file mode 100644 index 0000000..11dacce --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/sntp.h @@ -0,0 +1,81 @@ +/** + * @file + * SNTP client API + */ + +/* + * Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Frédéric Bernon, Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_APPS_SNTP_H +#define LWIP_HDR_APPS_SNTP_H + +#include "lwip/apps/sntp_opts.h" +#include "lwip/ip_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* SNTP operating modes: default is to poll using unicast. + The mode has to be set before calling sntp_init(). */ +#define SNTP_OPMODE_POLL 0 +#define SNTP_OPMODE_LISTENONLY 1 +void sntp_setoperatingmode(u8_t operating_mode); +u8_t sntp_getoperatingmode(void); + +void sntp_init(void); +void sntp_stop(void); +u8_t sntp_enabled(void); + +void sntp_setserver(u8_t idx, const ip_addr_t *addr); +const ip_addr_t* sntp_getserver(u8_t idx); +u8_t sntp_getkodreceived(u8_t idx); + +#if SNTP_MONITOR_SERVER_REACHABILITY +u8_t sntp_getreachability(u8_t idx); +#endif /* SNTP_MONITOR_SERVER_REACHABILITY */ + +#if SNTP_SERVER_DNS +void sntp_setservername(u8_t idx, const char *server); +const char *sntp_getservername(u8_t idx); +#endif /* SNTP_SERVER_DNS */ + +#if SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6 +void sntp_servermode_dhcp(int set_servers_from_dhcp); +#else /* SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6 */ +#define sntp_servermode_dhcp(x) +#endif /* SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6 */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_SNTP_H */ diff --git a/middleware/lwip/src/include/lwip/apps/sntp_opts.h b/middleware/lwip/src/include/lwip/apps/sntp_opts.h new file mode 100644 index 0000000..cb62771 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/sntp_opts.h @@ -0,0 +1,215 @@ +/** + * @file + * SNTP client options list + */ + +/* + * Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Frédéric Bernon, Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_APPS_SNTP_OPTS_H +#define LWIP_HDR_APPS_SNTP_OPTS_H + +#include "lwip/opt.h" +#include "lwip/prot/iana.h" + +/** + * @defgroup sntp_opts Options + * @ingroup sntp + * @{ + */ + +/** SNTP macro to change system time in seconds + * Define SNTP_SET_SYSTEM_TIME_US(sec, us) to set the time in microseconds + * instead of this one if you need the additional precision. Alternatively, + * define SNTP_SET_SYSTEM_TIME_NTP(sec, frac) in order to work with native + * NTP timestamps instead. + */ +#if !defined SNTP_SET_SYSTEM_TIME || defined __DOXYGEN__ +#define SNTP_SET_SYSTEM_TIME(sec) LWIP_UNUSED_ARG(sec) +#endif + +/** The maximum number of SNTP servers that can be set */ +#if !defined SNTP_MAX_SERVERS || defined __DOXYGEN__ +#define SNTP_MAX_SERVERS LWIP_DHCP_MAX_NTP_SERVERS +#endif + +/** Set this to 1 to implement the callback function called by dhcp when + * NTP servers are received. */ +#if !defined SNTP_GET_SERVERS_FROM_DHCP || defined __DOXYGEN__ +#define SNTP_GET_SERVERS_FROM_DHCP LWIP_DHCP_GET_NTP_SRV +#endif + +/** Set this to 1 to implement the callback function called by dhcpv6 when + * NTP servers are received. */ +#if !defined SNTP_GET_SERVERS_FROM_DHCPV6 || defined __DOXYGEN__ +#define SNTP_GET_SERVERS_FROM_DHCPV6 LWIP_DHCP6_GET_NTP_SRV +#endif + +/** Set this to 1 to support DNS names (or IP address strings) to set sntp servers + * One server address/name can be defined as default if SNTP_SERVER_DNS == 1: + * \#define SNTP_SERVER_ADDRESS "pool.ntp.org" + */ +#if !defined SNTP_SERVER_DNS || defined __DOXYGEN__ +#define SNTP_SERVER_DNS 0 +#endif + +/** + * SNTP_DEBUG: Enable debugging for SNTP. + */ +#if !defined SNTP_DEBUG || defined __DOXYGEN__ +#define SNTP_DEBUG LWIP_DBG_OFF +#endif + +/** SNTP server port */ +#if !defined SNTP_PORT || defined __DOXYGEN__ +#define SNTP_PORT LWIP_IANA_PORT_SNTP +#endif + +/** Sanity check: + * Define this to + * - 0 to turn off sanity checks (default; smaller code) + * - >= 1 to check address and port of the response packet to ensure the + * response comes from the server we sent the request to. + * - >= 2 to check returned Originate Timestamp against Transmit Timestamp + * sent to the server (to ensure response to older request). + * - >= 3 @todo: discard reply if any of the VN, Stratum, or Transmit Timestamp + * fields is 0 or the Mode field is not 4 (unicast) or 5 (broadcast). + * - >= 4 @todo: to check that the Root Delay and Root Dispersion fields are each + * greater than or equal to 0 and less than infinity, where infinity is + * currently a cozy number like one second. This check avoids using a + * server whose synchronization source has expired for a very long time. + */ +#if !defined SNTP_CHECK_RESPONSE || defined __DOXYGEN__ +#define SNTP_CHECK_RESPONSE 0 +#endif + +/** Enable round-trip delay compensation. + * Compensate for the round-trip delay by calculating the clock offset from + * the originate, receive, transmit and destination timestamps, as per RFC. + * + * The calculation requires compiler support for 64-bit integers. Also, either + * SNTP_SET_SYSTEM_TIME_US or SNTP_SET_SYSTEM_TIME_NTP has to be implemented + * for setting the system clock with sub-second precision. Likewise, either + * SNTP_GET_SYSTEM_TIME or SNTP_GET_SYSTEM_TIME_NTP needs to be implemented + * with sub-second precision. + * + * Although not strictly required, it makes sense to combine this option with + * SNTP_CHECK_RESPONSE >= 2 for sanity-checking of the received timestamps. + * Also, in order for the round-trip calculation to work, the difference + * between the local clock and the NTP server clock must not be larger than + * about 34 years. If that limit is exceeded, the implementation will fall back + * to setting the clock without compensation. In order to ensure that the local + * clock is always within the permitted range for compensation, even at first + * try, it may be necessary to store at least the current year in non-volatile + * memory. + */ +#if !defined SNTP_COMP_ROUNDTRIP || defined __DOXYGEN__ +#define SNTP_COMP_ROUNDTRIP 0 +#endif + +/** According to the RFC, this shall be a random delay + * between 1 and 5 minutes (in milliseconds) to prevent load peaks. + * This can be defined to a random generation function, + * which must return the delay in milliseconds as u32_t. + * Turned off by default. + */ +#if !defined SNTP_STARTUP_DELAY || defined __DOXYGEN__ +#ifdef LWIP_RAND +#define SNTP_STARTUP_DELAY 1 +#else +#define SNTP_STARTUP_DELAY 0 +#endif +#endif + +/** If you want the startup delay to be a function, define this + * to a function (including the brackets) and define SNTP_STARTUP_DELAY to 1. + */ +#if !defined SNTP_STARTUP_DELAY_FUNC || defined __DOXYGEN__ +#define SNTP_STARTUP_DELAY_FUNC (LWIP_RAND() % 5000) +#endif + +/** SNTP receive timeout - in milliseconds + * Also used as retry timeout - this shouldn't be too low. + * Default is 15 seconds. Must not be beolw 15 seconds by specification (i.e. 15000) + */ +#if !defined SNTP_RECV_TIMEOUT || defined __DOXYGEN__ +#define SNTP_RECV_TIMEOUT 15000 +#endif + +/** SNTP update delay - in milliseconds + * Default is 1 hour. Must not be beolw 60 seconds by specification (i.e. 60000) + */ +#if !defined SNTP_UPDATE_DELAY || defined __DOXYGEN__ +#define SNTP_UPDATE_DELAY 3600000 +#endif + +/** SNTP macro to get system time, used with SNTP_CHECK_RESPONSE >= 2 + * to send in request and compare in response. Also used for round-trip + * delay compensation if SNTP_COMP_ROUNDTRIP != 0. + * Alternatively, define SNTP_GET_SYSTEM_TIME_NTP(sec, frac) in order to + * work with native NTP timestamps instead. + */ +#if !defined SNTP_GET_SYSTEM_TIME || defined __DOXYGEN__ +#define SNTP_GET_SYSTEM_TIME(sec, us) do { (sec) = 0; (us) = 0; } while(0) +#endif + +/** Default retry timeout (in milliseconds) if the response + * received is invalid. + * This is doubled with each retry until SNTP_RETRY_TIMEOUT_MAX is reached. + */ +#if !defined SNTP_RETRY_TIMEOUT || defined __DOXYGEN__ +#define SNTP_RETRY_TIMEOUT SNTP_RECV_TIMEOUT +#endif + +/** Maximum retry timeout (in milliseconds). */ +#if !defined SNTP_RETRY_TIMEOUT_MAX || defined __DOXYGEN__ +#define SNTP_RETRY_TIMEOUT_MAX (SNTP_RETRY_TIMEOUT * 10) +#endif + +/** Increase retry timeout with every retry sent + * Default is on to conform to RFC. + */ +#if !defined SNTP_RETRY_TIMEOUT_EXP || defined __DOXYGEN__ +#define SNTP_RETRY_TIMEOUT_EXP 1 +#endif + +/** Keep a reachability shift register per server + * Default is on to conform to RFC. + */ +#if !defined SNTP_MONITOR_SERVER_REACHABILITY || defined __DOXYGEN__ +#define SNTP_MONITOR_SERVER_REACHABILITY 1 +#endif + +/** + * @} + */ + +#endif /* LWIP_HDR_APPS_SNTP_OPTS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/tftp_client.h b/middleware/lwip/src/include/lwip/apps/tftp_client.h new file mode 100644 index 0000000..24dbda6 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/tftp_client.h @@ -0,0 +1,50 @@ +/** + * + * @file tftp_client.h + * TFTP client header + * + */ + +/* + * Redistribution and use in source and binary forms, with or without + * modification,are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#ifndef LWIP_HDR_APPS_TFTP_CLIENT_H +#define LWIP_HDR_APPS_TFTP_CLIENT_H + +#include "lwip/apps/tftp_common.h" + +enum tftp_transfer_mode { + TFTP_MODE_OCTET, + TFTP_MODE_NETASCII, + TFTP_MODE_BINARY /* used in old versions only */ +}; + +err_t tftp_init_client(const struct tftp_context* ctx); +err_t tftp_get(void* handle, const ip_addr_t *addr, u16_t port, const char* fname, enum tftp_transfer_mode mode); +err_t tftp_put(void* handle, const ip_addr_t *addr, u16_t port, const char* fname, enum tftp_transfer_mode mode); + +#endif /* LWIP_HDR_APPS_TFTP_CLIENT_H */ diff --git a/middleware/lwip/src/include/lwip/apps/tftp_common.h b/middleware/lwip/src/include/lwip/apps/tftp_common.h new file mode 100644 index 0000000..4bc2c17 --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/tftp_common.h @@ -0,0 +1,108 @@ +/** + * + * @file tftp_common.h + * + * @author Logan Gunthorpe + * + * @brief Trivial File Transfer Protocol (RFC 1350) + * + * Copyright (c) Deltatee Enterprises Ltd. 2013 + * All rights reserved. + * + */ + +/* + * Redistribution and use in source and binary forms, with or without + * modification,are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Author: Logan Gunthorpe + * + */ + +#ifndef LWIP_HDR_APPS_TFTP_COMMON_H +#define LWIP_HDR_APPS_TFTP_COMMON_H + +#include "lwip/apps/tftp_opts.h" +#include "lwip/err.h" +#include "lwip/pbuf.h" +#include "lwip/ip_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** @ingroup tftp + * TFTP context containing callback functions for TFTP transfers + */ +struct tftp_context { + /** + * Open file for read/write (server mode only). + * @param fname Filename + * @param mode Mode string from TFTP RFC 1350 (netascii, octet, mail) + * @param write Flag indicating read (0) or write (!= 0) access + * @returns File handle supplied to other functions + */ + void* (*open)(const char* fname, const char* mode, u8_t write); + /** + * Close file handle + * @param handle File handle returned by open()/tftp_put()/tftp_get() + */ + void (*close)(void* handle); + /** + * Read from file + * @param handle File handle returned by open()/tftp_put()/tftp_get() + * @param buf Target buffer to copy read data to + * @param bytes Number of bytes to copy to buf + * @returns >= 0: Success; < 0: Error + */ + int (*read)(void* handle, void* buf, int bytes); + /** + * Write to file + * @param handle File handle returned by open()/tftp_put()/tftp_get() + * @param pbuf PBUF adjusted such that payload pointer points + * to the beginning of write data. In other words, + * TFTP headers are stripped off. + * @returns >= 0: Success; < 0: Error + */ + int (*write)(void* handle, struct pbuf* p); + /** + * Error indication from client or response from server + * @param handle File handle set by open()/tftp_get()/tftp_put() + * @param err error code from client or server + * @param msg error message from client or server + * @param size size of msg + */ + void (*error)(void* handle, int err, const char* msg, int size); +}; + +#define LWIP_TFTP_MODE_SERVER 0x01 +#define LWIP_TFTP_MODE_CLIENT 0x02 +#define LWIP_TFTP_MODE_CLIENTSERVER (LWIP_TFTP_MODE_SERVER | LWIP_TFTP_MODE_CLIENT) + +err_t tftp_init_common(u8_t mode, const struct tftp_context* ctx); +void tftp_cleanup(void); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_APPS_TFTP_COMMON_H */ diff --git a/middleware/lwip/src/include/lwip/apps/tftp_opts.h b/middleware/lwip/src/include/lwip/apps/tftp_opts.h new file mode 100644 index 0000000..509fabd --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/tftp_opts.h @@ -0,0 +1,106 @@ +/** + * + * @file tftp_opts.h + * + * @author Logan Gunthorpe + * + * @brief Trivial File Transfer Protocol (RFC 1350) implementation options + * + * Copyright (c) Deltatee Enterprises Ltd. 2013 + * All rights reserved. + * + */ + +/* + * Redistribution and use in source and binary forms, with or without + * modification,are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Author: Logan Gunthorpe + * + */ + +#ifndef LWIP_HDR_APPS_TFTP_OPTS_H +#define LWIP_HDR_APPS_TFTP_OPTS_H + +#include "lwip/opt.h" +#include "lwip/prot/iana.h" + +/** + * @defgroup tftp_opts Options + * @ingroup tftp + * @{ + */ + +/** + * Enable TFTP debug messages + */ +#if !defined TFTP_DEBUG || defined __DOXYGEN__ +#define TFTP_DEBUG LWIP_DBG_OFF +#endif + +/** + * TFTP server port + */ +#if !defined TFTP_PORT || defined __DOXYGEN__ +#define TFTP_PORT LWIP_IANA_PORT_TFTP +#endif + +/** + * TFTP timeout + */ +#if !defined TFTP_TIMEOUT_MSECS || defined __DOXYGEN__ +#define TFTP_TIMEOUT_MSECS 10000 +#endif + +/** + * Max. number of retries when a file is read from server + */ +#if !defined TFTP_MAX_RETRIES || defined __DOXYGEN__ +#define TFTP_MAX_RETRIES 5 +#endif + +/** + * TFTP timer cyclic interval + */ +#if !defined TFTP_TIMER_MSECS || defined __DOXYGEN__ +#define TFTP_TIMER_MSECS (TFTP_TIMEOUT_MSECS / 10) +#endif + +/** + * Max. length of TFTP filename + */ +#if !defined TFTP_MAX_FILENAME_LEN || defined __DOXYGEN__ +#define TFTP_MAX_FILENAME_LEN 20 +#endif + +/** + * Max. length of TFTP mode + */ +#if !defined TFTP_MAX_MODE_LEN || defined __DOXYGEN__ +#define TFTP_MAX_MODE_LEN 10 +#endif + +/** + * @} + */ + +#endif /* LWIP_HDR_APPS_TFTP_OPTS_H */ diff --git a/middleware/lwip/src/include/lwip/apps/tftp_server.h b/middleware/lwip/src/include/lwip/apps/tftp_server.h new file mode 100644 index 0000000..a5769ce --- /dev/null +++ b/middleware/lwip/src/include/lwip/apps/tftp_server.h @@ -0,0 +1,42 @@ +/** + * + * @file tftp_server.h + * TFTP server header + * + */ + +/* + * Redistribution and use in source and binary forms, with or without + * modification,are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#ifndef LWIP_HDR_APPS_TFTP_SERVER_H +#define LWIP_HDR_APPS_TFTP_SERVER_H + +#include "lwip/apps/tftp_common.h" + +err_t tftp_init_server(const struct tftp_context* ctx); + +#endif /* LWIP_HDR_APPS_TFTP_SERVER_H */ diff --git a/middleware/lwip/src/include/lwip/arch.h b/middleware/lwip/src/include/lwip/arch.h new file mode 100644 index 0000000..596c1c9 --- /dev/null +++ b/middleware/lwip/src/include/lwip/arch.h @@ -0,0 +1,402 @@ +/** + * @file + * Support for different processor and compiler architectures + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_ARCH_H +#define LWIP_HDR_ARCH_H + +#ifndef LITTLE_ENDIAN +#define LITTLE_ENDIAN 1234 +#endif + +#ifndef BIG_ENDIAN +#define BIG_ENDIAN 4321 +#endif + +#include "arch/cc.h" + +/** + * @defgroup compiler_abstraction Compiler/platform abstraction + * @ingroup sys_layer + * All defines related to this section must not be placed in lwipopts.h, + * but in arch/cc.h! + * If the compiler does not provide memset() this file must include a + * definition of it, or include a file which defines it. + * These options cannot be \#defined in lwipopts.h since they are not options + * of lwIP itself, but options of the lwIP port to your system. + * @{ + */ + +/** Define the byte order of the system. + * Needed for conversion of network data to host byte order. + * Allowed values: LITTLE_ENDIAN and BIG_ENDIAN + */ +#ifndef BYTE_ORDER +#define BYTE_ORDER LITTLE_ENDIAN +#endif + +/** Define random number generator function of your system */ +#ifdef __DOXYGEN__ +#define LWIP_RAND() ((u32_t)rand()) +#endif + +/** Platform specific diagnostic output.
+ * Note the default implementation pulls in printf, which may + * in turn pull in a lot of standard library code. In resource-constrained + * systems, this should be defined to something less resource-consuming. + */ +#ifndef LWIP_PLATFORM_DIAG +#define LWIP_PLATFORM_DIAG(x) do {printf x;} while(0) +#include +#include +#endif + +/** Platform specific assertion handling.
+ * Note the default implementation pulls in printf, fflush and abort, which may + * in turn pull in a lot of standard library code. In resource-constrained + * systems, this should be defined to something less resource-consuming. + */ +#ifndef LWIP_PLATFORM_ASSERT +#define LWIP_PLATFORM_ASSERT(x) do {printf("Assertion \"%s\" failed at line %d in %s\n", \ + x, __LINE__, __FILE__); fflush(NULL); abort();} while(0) +#include +#include +#endif + +/** Define this to 1 in arch/cc.h of your port if you do not want to + * include stddef.h header to get size_t. You need to typedef size_t + * by yourself in this case. + */ +#ifndef LWIP_NO_STDDEF_H +#define LWIP_NO_STDDEF_H 0 +#endif + +#if !LWIP_NO_STDDEF_H +#include /* for size_t */ +#endif + +/** Define this to 1 in arch/cc.h of your port if your compiler does not provide + * the stdint.h header. You need to typedef the generic types listed in + * lwip/arch.h yourself in this case (u8_t, u16_t...). + */ +#ifndef LWIP_NO_STDINT_H +#define LWIP_NO_STDINT_H 0 +#endif + +/* Define generic types used in lwIP */ +#if !LWIP_NO_STDINT_H +#include +/* stdint.h is C99 which should also provide support for 64-bit integers */ +#if !defined(LWIP_HAVE_INT64) && defined(UINT64_MAX) +#define LWIP_HAVE_INT64 1 +#endif +typedef uint8_t u8_t; +typedef int8_t s8_t; +typedef uint16_t u16_t; +typedef int16_t s16_t; +typedef uint32_t u32_t; +typedef int32_t s32_t; +#if LWIP_HAVE_INT64 +typedef uint64_t u64_t; +typedef int64_t s64_t; +#endif +typedef uintptr_t mem_ptr_t; +#endif + +/** Define this to 1 in arch/cc.h of your port if your compiler does not provide + * the inttypes.h header. You need to define the format strings listed in + * lwip/arch.h yourself in this case (X8_F, U16_F...). + */ +#ifndef LWIP_NO_INTTYPES_H +#define LWIP_NO_INTTYPES_H 0 +#endif + +/* Define (sn)printf formatters for these lwIP types */ +#if !LWIP_NO_INTTYPES_H +#include +#ifndef X8_F +#define X8_F "02" PRIx8 +#endif +#ifndef U16_F +#define U16_F PRIu16 +#endif +#ifndef S16_F +#define S16_F PRId16 +#endif +#ifndef X16_F +#define X16_F PRIx16 +#endif +#ifndef U32_F +#define U32_F PRIu32 +#endif +#ifndef S32_F +#define S32_F PRId32 +#endif +#ifndef X32_F +#define X32_F PRIx32 +#endif +#ifndef SZT_F +#define SZT_F PRIuPTR +#endif +#endif + +/** Define this to 1 in arch/cc.h of your port if your compiler does not provide + * the limits.h header. You need to define the type limits yourself in this case + * (e.g. INT_MAX, SSIZE_MAX). + */ +#ifndef LWIP_NO_LIMITS_H +#define LWIP_NO_LIMITS_H 0 +#endif + +/* Include limits.h? */ +#if !LWIP_NO_LIMITS_H +#include +#endif + +/* Do we need to define ssize_t? This is a compatibility hack: + * Unfortunately, this type seems to be unavailable on some systems (even if + * sys/types or unistd.h are available). + * Being like that, we define it to 'int' if SSIZE_MAX is not defined. + */ +#ifdef SSIZE_MAX +/* If SSIZE_MAX is defined, unistd.h should provide the type as well */ +#ifndef LWIP_NO_UNISTD_H +#define LWIP_NO_UNISTD_H 0 +#endif +#if !LWIP_NO_UNISTD_H +#include +#endif +#else /* SSIZE_MAX */ +typedef int ssize_t; +#define SSIZE_MAX INT_MAX +#endif /* SSIZE_MAX */ + +/* some maximum values needed in lwip code */ +#define LWIP_UINT32_MAX 0xffffffff + +/** Define this to 1 in arch/cc.h of your port if your compiler does not provide + * the ctype.h header. If ctype.h is available, a few character functions + * are mapped to the appropriate functions (lwip_islower, lwip_isdigit...), if + * not, a private implementation is provided. + */ +#ifndef LWIP_NO_CTYPE_H +#define LWIP_NO_CTYPE_H 0 +#endif + +#if LWIP_NO_CTYPE_H +#define lwip_in_range(c, lo, up) ((u8_t)(c) >= (lo) && (u8_t)(c) <= (up)) +#define lwip_isdigit(c) lwip_in_range((c), '0', '9') +#define lwip_isxdigit(c) (lwip_isdigit(c) || lwip_in_range((c), 'a', 'f') || lwip_in_range((c), 'A', 'F')) +#define lwip_islower(c) lwip_in_range((c), 'a', 'z') +#define lwip_isspace(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || (c) == '\r' || (c) == '\t' || (c) == '\v') +#define lwip_isupper(c) lwip_in_range((c), 'A', 'Z') +#define lwip_tolower(c) (lwip_isupper(c) ? (c) - 'A' + 'a' : c) +#define lwip_toupper(c) (lwip_islower(c) ? (c) - 'a' + 'A' : c) +#else +#include +#define lwip_isdigit(c) isdigit((unsigned char)(c)) +#define lwip_isxdigit(c) isxdigit((unsigned char)(c)) +#define lwip_islower(c) islower((unsigned char)(c)) +#define lwip_isspace(c) isspace((unsigned char)(c)) +#define lwip_isupper(c) isupper((unsigned char)(c)) +#define lwip_tolower(c) tolower((unsigned char)(c)) +#define lwip_toupper(c) toupper((unsigned char)(c)) +#endif + +/** C++ const_cast(val) equivalent to remove constness from a value (GCC -Wcast-qual) */ +#ifndef LWIP_CONST_CAST +#define LWIP_CONST_CAST(target_type, val) ((target_type)((ptrdiff_t)val)) +#endif + +/** Get rid of alignment cast warnings (GCC -Wcast-align) */ +#ifndef LWIP_ALIGNMENT_CAST +#define LWIP_ALIGNMENT_CAST(target_type, val) LWIP_CONST_CAST(target_type, val) +#endif + +/** Get rid of warnings related to pointer-to-numeric and vice-versa casts, + * e.g. "conversion from 'u8_t' to 'void *' of greater size" + */ +#ifndef LWIP_PTR_NUMERIC_CAST +#define LWIP_PTR_NUMERIC_CAST(target_type, val) LWIP_CONST_CAST(target_type, val) +#endif + +/** Avoid warnings/errors related to implicitly casting away packed attributes by doing a explicit cast */ +#ifndef LWIP_PACKED_CAST +#define LWIP_PACKED_CAST(target_type, val) LWIP_CONST_CAST(target_type, val) +#endif + +/** Allocates a memory buffer of specified size that is of sufficient size to align + * its start address using LWIP_MEM_ALIGN. + * You can declare your own version here e.g. to enforce alignment without adding + * trailing padding bytes (see LWIP_MEM_ALIGN_BUFFER) or your own section placement + * requirements.
+ * e.g. if you use gcc and need 32 bit alignment:
+ * \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u8_t variable_name[size] \_\_attribute\_\_((aligned(4)))
+ * or more portable:
+ * \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u32_t variable_name[(size + sizeof(u32_t) - 1) / sizeof(u32_t)] + */ +#ifndef LWIP_DECLARE_MEMORY_ALIGNED +#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u8_t variable_name[LWIP_MEM_ALIGN_BUFFER(size)] +#endif + +/** Calculate memory size for an aligned buffer - returns the next highest + * multiple of MEM_ALIGNMENT (e.g. LWIP_MEM_ALIGN_SIZE(3) and + * LWIP_MEM_ALIGN_SIZE(4) will both yield 4 for MEM_ALIGNMENT == 4). + */ +#ifndef LWIP_MEM_ALIGN_SIZE +#define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1U) & ~(MEM_ALIGNMENT-1U)) +#endif + +/** Calculate safe memory size for an aligned buffer when using an unaligned + * type as storage. This includes a safety-margin on (MEM_ALIGNMENT - 1) at the + * start (e.g. if buffer is u8_t[] and actual data will be u32_t*) + */ +#ifndef LWIP_MEM_ALIGN_BUFFER +#define LWIP_MEM_ALIGN_BUFFER(size) (((size) + MEM_ALIGNMENT - 1U)) +#endif + +/** Align a memory pointer to the alignment defined by MEM_ALIGNMENT + * so that ADDR % MEM_ALIGNMENT == 0 + */ +#ifndef LWIP_MEM_ALIGN +#define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1))) +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/** Packed structs support. + * Placed BEFORE declaration of a packed struct.
+ * For examples of packed struct declarations, see include/lwip/prot/ subfolder.
+ * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. + */ +#ifndef PACK_STRUCT_BEGIN +#define PACK_STRUCT_BEGIN +#endif /* PACK_STRUCT_BEGIN */ + +/** Packed structs support. + * Placed AFTER declaration of a packed struct.
+ * For examples of packed struct declarations, see include/lwip/prot/ subfolder.
+ * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. + */ +#ifndef PACK_STRUCT_END +#define PACK_STRUCT_END +#endif /* PACK_STRUCT_END */ + +/** Packed structs support. + * Placed between end of declaration of a packed struct and trailing semicolon.
+ * For examples of packed struct declarations, see include/lwip/prot/ subfolder.
+ * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. + */ +#ifndef PACK_STRUCT_STRUCT +#if defined(__GNUC__) || defined(__clang__) +#define PACK_STRUCT_STRUCT __attribute__((packed)) +#else +#define PACK_STRUCT_STRUCT +#endif +#endif /* PACK_STRUCT_STRUCT */ + +/** Packed structs support. + * Wraps u32_t and u16_t members.
+ * For examples of packed struct declarations, see include/lwip/prot/ subfolder.
+ * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. + */ +#ifndef PACK_STRUCT_FIELD +#define PACK_STRUCT_FIELD(x) x +#endif /* PACK_STRUCT_FIELD */ + +/** Packed structs support. + * Wraps u8_t members, where some compilers warn that packing is not necessary.
+ * For examples of packed struct declarations, see include/lwip/prot/ subfolder.
+ * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. + */ +#ifndef PACK_STRUCT_FLD_8 +#define PACK_STRUCT_FLD_8(x) PACK_STRUCT_FIELD(x) +#endif /* PACK_STRUCT_FLD_8 */ + +/** Packed structs support. + * Wraps members that are packed structs themselves, where some compilers warn that packing is not necessary.
+ * For examples of packed struct declarations, see include/lwip/prot/ subfolder.
+ * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. + */ +#ifndef PACK_STRUCT_FLD_S +#define PACK_STRUCT_FLD_S(x) PACK_STRUCT_FIELD(x) +#endif /* PACK_STRUCT_FLD_S */ + +/** PACK_STRUCT_USE_INCLUDES==1: Packed structs support using \#include files before and after struct to be packed.
+ * The file included BEFORE the struct is "arch/bpstruct.h".
+ * The file included AFTER the struct is "arch/epstruct.h".
+ * This can be used to implement struct packing on MS Visual C compilers, see + * the Win32 port in the lwIP/contrib subdir for reference. + * For examples of packed struct declarations, see include/lwip/prot/ subfolder.
+ * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. + */ +#ifdef __DOXYGEN__ +#define PACK_STRUCT_USE_INCLUDES +#endif + +/** Eliminates compiler warning about unused arguments (GCC -Wextra -Wunused). */ +#ifndef LWIP_UNUSED_ARG +#define LWIP_UNUSED_ARG(x) (void)x +#endif /* LWIP_UNUSED_ARG */ + +/** LWIP_PROVIDE_ERRNO==1: Let lwIP provide ERRNO values and the 'errno' variable. + * If this is disabled, cc.h must either define 'errno', include , + * define LWIP_ERRNO_STDINCLUDE to get included or + * define LWIP_ERRNO_INCLUDE to or equivalent. + */ +#if defined __DOXYGEN__ +#define LWIP_PROVIDE_ERRNO +#endif + +/* Use a special, reproducable version of rand() for fuzz tests? */ +#ifdef LWIP_RAND_FOR_FUZZ +#ifdef LWIP_RAND +#undef LWIP_RAND +#endif +u32_t lwip_fuzz_rand(void); +#define LWIP_RAND() lwip_fuzz_rand() +#endif + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_ARCH_H */ diff --git a/middleware/lwip/src/include/lwip/autoip.h b/middleware/lwip/src/include/lwip/autoip.h new file mode 100644 index 0000000..b3f9feb --- /dev/null +++ b/middleware/lwip/src/include/lwip/autoip.h @@ -0,0 +1,90 @@ +/** + * @file + * + * AutoIP Automatic LinkLocal IP Configuration + */ + +/* + * + * Copyright (c) 2007 Dominik Spies + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dominik Spies + * + * This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform + * with RFC 3927. + * + */ + +#ifndef LWIP_HDR_AUTOIP_H +#define LWIP_HDR_AUTOIP_H + +#include "lwip/opt.h" + +#if LWIP_IPV4 && LWIP_AUTOIP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/netif.h" +/* #include "lwip/udp.h" */ +#include "lwip/etharp.h" +#include "lwip/acd.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** AutoIP state information per netif */ +struct autoip +{ + /** the currently selected, probed, announced or used LL IP-Address */ + ip4_addr_t llipaddr; + /** current AutoIP state machine state */ + u8_t state; + /** total number of probed/used Link Local IP-Addresses */ + u8_t tried_llipaddr; + /** acd struct */ + struct acd acd; +}; + + +void autoip_set_struct(struct netif *netif, struct autoip *autoip); +void autoip_remove_struct(struct netif *netif); +err_t autoip_start(struct netif *netif); +err_t autoip_stop(struct netif *netif); +void autoip_network_changed_link_up(struct netif *netif); +void autoip_network_changed_link_down(struct netif *netif); +u8_t autoip_supplied_address(struct netif *netif); + +/* for lwIP internal use by ip4.c */ +u8_t autoip_accept_packet(struct netif *netif, const ip4_addr_t *addr); + +#define netif_autoip_data(netif) ((struct autoip*)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP)) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV4 && LWIP_AUTOIP */ + +#endif /* LWIP_HDR_AUTOIP_H */ diff --git a/middleware/lwip/src/include/lwip/debug.h b/middleware/lwip/src/include/lwip/debug.h new file mode 100644 index 0000000..0ec7e76 --- /dev/null +++ b/middleware/lwip/src/include/lwip/debug.h @@ -0,0 +1,161 @@ +/** + * @file + * Debug messages infrastructure + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_DEBUG_H +#define LWIP_HDR_DEBUG_H + +#include "lwip/arch.h" +#include "lwip/opt.h" + +/** + * @defgroup debugging_levels LWIP_DBG_MIN_LEVEL and LWIP_DBG_TYPES_ON values + * @ingroup lwip_opts_debugmsg + * @{ + */ + +/** @name Debug level (LWIP_DBG_MIN_LEVEL) + * @{ + */ +/** Debug level: ALL messages*/ +#define LWIP_DBG_LEVEL_ALL 0x00 +/** Debug level: Warnings. bad checksums, dropped packets, ... */ +#define LWIP_DBG_LEVEL_WARNING 0x01 +/** Debug level: Serious. memory allocation failures, ... */ +#define LWIP_DBG_LEVEL_SERIOUS 0x02 +/** Debug level: Severe */ +#define LWIP_DBG_LEVEL_SEVERE 0x03 +/** + * @} + */ + +#define LWIP_DBG_MASK_LEVEL 0x03 +/* compatibility define only */ +#define LWIP_DBG_LEVEL_OFF LWIP_DBG_LEVEL_ALL + +/** @name Enable/disable debug messages completely (LWIP_DBG_TYPES_ON) + * @{ + */ +/** flag for LWIP_DEBUGF to enable that debug message */ +#define LWIP_DBG_ON 0x80U +/** flag for LWIP_DEBUGF to disable that debug message */ +#define LWIP_DBG_OFF 0x00U +/** + * @} + */ + +/** @name Debug message types (LWIP_DBG_TYPES_ON) + * @{ + */ +/** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */ +#define LWIP_DBG_TRACE 0x40U +/** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */ +#define LWIP_DBG_STATE 0x20U +/** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */ +#define LWIP_DBG_FRESH 0x10U +/** flag for LWIP_DEBUGF to halt after printing this debug message */ +#define LWIP_DBG_HALT 0x08U +/** + * @} + */ + +/** + * @} + */ + +/** + * @defgroup lwip_assertions Assertion handling + * @ingroup lwip_opts_debug + * @{ + */ +/** + * LWIP_NOASSERT: Disable LWIP_ASSERT checks: + * To disable assertions define LWIP_NOASSERT in arch/cc.h. + */ +#ifdef __DOXYGEN__ +#define LWIP_NOASSERT +#undef LWIP_NOASSERT +#endif +/** + * @} + */ + +#ifndef LWIP_NOASSERT +#define LWIP_ASSERT(message, assertion) do { if (!(assertion)) { \ + LWIP_PLATFORM_ASSERT(message); }} while(0) +#else /* LWIP_NOASSERT */ +#define LWIP_ASSERT(message, assertion) +#endif /* LWIP_NOASSERT */ + +#ifndef LWIP_ERROR +#ifdef LWIP_DEBUG +#define LWIP_PLATFORM_ERROR(message) LWIP_PLATFORM_DIAG((message)) +#else +#define LWIP_PLATFORM_ERROR(message) +#endif + +/* if "expression" isn't true, then print "message" and execute "handler" expression */ +#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \ + LWIP_PLATFORM_ERROR(message); handler;}} while(0) +#endif /* LWIP_ERROR */ + +/** Enable debug message printing, but only if debug message type is enabled + * AND is of correct type AND is at least LWIP_DBG_LEVEL. + */ +#ifdef __DOXYGEN__ +#define LWIP_DEBUG +#undef LWIP_DEBUG +#endif + +#ifdef LWIP_DEBUG +#define LWIP_DEBUG_ENABLED(debug) (((debug) & LWIP_DBG_ON) && \ + ((debug) & LWIP_DBG_TYPES_ON) && \ + ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) + +#define LWIP_DEBUGF(debug, message) do { \ + if (LWIP_DEBUG_ENABLED(debug)) { \ + LWIP_PLATFORM_DIAG(message); \ + if ((debug) & LWIP_DBG_HALT) { \ + while(1); \ + } \ + } \ + } while(0) + +#else /* LWIP_DEBUG */ +#define LWIP_DEBUG_ENABLED(debug) 0 +#define LWIP_DEBUGF(debug, message) +#endif /* LWIP_DEBUG */ + +#endif /* LWIP_HDR_DEBUG_H */ diff --git a/middleware/lwip/src/include/lwip/def.h b/middleware/lwip/src/include/lwip/def.h new file mode 100644 index 0000000..d6bf763 --- /dev/null +++ b/middleware/lwip/src/include/lwip/def.h @@ -0,0 +1,156 @@ +/** + * @file + * various utility macros + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +/** + * @defgroup perf Performance measurement + * @ingroup sys_layer + * All defines related to this section must not be placed in lwipopts.h, + * but in arch/perf.h! + * Measurement calls made throughout lwip, these can be defined to nothing. + * - PERF_START: start measuring something. + * - PERF_STOP(x): stop measuring something, and record the result. + */ + +#ifndef LWIP_HDR_DEF_H +#define LWIP_HDR_DEF_H + +/* arch.h might define NULL already */ +#include "lwip/arch.h" +#include "lwip/opt.h" +#if LWIP_PERF +#include "arch/perf.h" +#else /* LWIP_PERF */ +#define PERF_START /* null definition */ +#define PERF_STOP(x) /* null definition */ +#endif /* LWIP_PERF */ + +#ifdef __cplusplus +extern "C" { +#endif + +#define LWIP_MAX(x , y) (((x) > (y)) ? (x) : (y)) +#define LWIP_MIN(x , y) (((x) < (y)) ? (x) : (y)) + +/* Get the number of entries in an array ('x' must NOT be a pointer!) */ +#define LWIP_ARRAYSIZE(x) (sizeof(x)/sizeof((x)[0])) + +/** Create u32_t value from bytes */ +#define LWIP_MAKEU32(a,b,c,d) (((u32_t)((a) & 0xff) << 24) | \ + ((u32_t)((b) & 0xff) << 16) | \ + ((u32_t)((c) & 0xff) << 8) | \ + (u32_t)((d) & 0xff)) + +#ifndef NULL +#ifdef __cplusplus +#define NULL 0 +#else +#define NULL ((void *)0) +#endif +#endif + +#if BYTE_ORDER == BIG_ENDIAN +#define lwip_htons(x) ((u16_t)(x)) +#define lwip_ntohs(x) ((u16_t)(x)) +#define lwip_htonl(x) ((u32_t)(x)) +#define lwip_ntohl(x) ((u32_t)(x)) +#define PP_HTONS(x) ((u16_t)(x)) +#define PP_NTOHS(x) ((u16_t)(x)) +#define PP_HTONL(x) ((u32_t)(x)) +#define PP_NTOHL(x) ((u32_t)(x)) +#else /* BYTE_ORDER != BIG_ENDIAN */ +#ifndef lwip_htons +u16_t lwip_htons(u16_t x); +#endif +#define lwip_ntohs(x) lwip_htons(x) + +#ifndef lwip_htonl +u32_t lwip_htonl(u32_t x); +#endif +#define lwip_ntohl(x) lwip_htonl(x) + +/* These macros should be calculated by the preprocessor and are used + with compile-time constants only (so that there is no little-endian + overhead at runtime). */ +#define PP_HTONS(x) ((u16_t)((((x) & (u16_t)0x00ffU) << 8) | (((x) & (u16_t)0xff00U) >> 8))) +#define PP_NTOHS(x) PP_HTONS(x) +#define PP_HTONL(x) ((((x) & (u32_t)0x000000ffUL) << 24) | \ + (((x) & (u32_t)0x0000ff00UL) << 8) | \ + (((x) & (u32_t)0x00ff0000UL) >> 8) | \ + (((x) & (u32_t)0xff000000UL) >> 24)) +#define PP_NTOHL(x) PP_HTONL(x) +#endif /* BYTE_ORDER == BIG_ENDIAN */ + +/* Provide usual function names as macros for users, but this can be turned off */ +#ifndef LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS +#define htons(x) lwip_htons(x) +#define ntohs(x) lwip_ntohs(x) +#define htonl(x) lwip_htonl(x) +#define ntohl(x) lwip_ntohl(x) +#endif + +/* Functions that are not available as standard implementations. + * In cc.h, you can #define these to implementations available on + * your platform to save some code bytes if you use these functions + * in your application, too. + */ + +#ifndef lwip_itoa +/* This can be #defined to itoa() or snprintf(result, bufsize, "%d", number) depending on your platform */ +void lwip_itoa(char* result, size_t bufsize, int number); +#endif +#ifndef lwip_strnicmp +/* This can be #defined to strnicmp() or strncasecmp() depending on your platform */ +int lwip_strnicmp(const char* str1, const char* str2, size_t len); +#endif +#ifndef lwip_stricmp +/* This can be #defined to stricmp() or strcasecmp() depending on your platform */ +int lwip_stricmp(const char* str1, const char* str2); +#endif +#ifndef lwip_strnstr +/* This can be #defined to strnstr() depending on your platform */ +char* lwip_strnstr(const char* buffer, const char* token, size_t n); +#endif +#ifndef lwip_strnistr +/* This can be #defined to strnistr() depending on your platform */ +char* lwip_strnistr(const char* buffer, const char* token, size_t n); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_DEF_H */ diff --git a/middleware/lwip/src/include/lwip/dhcp.h b/middleware/lwip/src/include/lwip/dhcp.h new file mode 100644 index 0000000..49c266e --- /dev/null +++ b/middleware/lwip/src/include/lwip/dhcp.h @@ -0,0 +1,143 @@ +/** + * @file + * DHCP client API + */ + +/* + * Copyright (c) 2001-2004 Leon Woestenberg + * Copyright (c) 2001-2004 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Leon Woestenberg + * + */ +#ifndef LWIP_HDR_DHCP_H +#define LWIP_HDR_DHCP_H + +#include "lwip/opt.h" + +#if LWIP_DHCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/netif.h" +#include "lwip/udp.h" + +#if LWIP_DHCP_DOES_ACD_CHECK +#include "lwip/acd.h" +#endif /* LWIP_DHCP_DOES_ACD_CHECK */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** period (in seconds) of the application calling dhcp_coarse_tmr() */ +#define DHCP_COARSE_TIMER_SECS 60 +/** period (in milliseconds) of the application calling dhcp_coarse_tmr() */ +#define DHCP_COARSE_TIMER_MSECS (DHCP_COARSE_TIMER_SECS * 1000UL) +/** period (in milliseconds) of the application calling dhcp_fine_tmr() */ +#define DHCP_FINE_TIMER_MSECS 500 + +#define DHCP_BOOT_FILE_LEN 128U + +/* AutoIP cooperation flags (struct dhcp.autoip_coop_state) */ +typedef enum { + DHCP_AUTOIP_COOP_STATE_OFF = 0, + DHCP_AUTOIP_COOP_STATE_ON = 1 +} dhcp_autoip_coop_state_enum_t; + +struct dhcp +{ + /** transaction identifier of last sent request */ + u32_t xid; + /** track PCB allocation state */ + u8_t pcb_allocated; + /** current DHCP state machine state */ + u8_t state; + /** retries of current request */ + u8_t tries; + + u8_t subnet_mask_given; + + u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */ + u16_t t1_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */ + u16_t t2_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */ + u16_t t1_renew_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next renew try */ + u16_t t2_rebind_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next rebind try */ + u16_t lease_used; /* #ticks with period DHCP_COARSE_TIMER_SECS since last received DHCP ack */ + u16_t t0_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for lease time */ + ip_addr_t server_ip_addr; /* dhcp server address that offered this lease (ip_addr_t because passed to UDP) */ + ip4_addr_t offered_ip_addr; + ip4_addr_t offered_sn_mask; + ip4_addr_t offered_gw_addr; + + u32_t offered_t0_lease; /* lease period (in seconds) */ + u32_t offered_t1_renew; /* recommended renew time (usually 50% of lease period) */ + u32_t offered_t2_rebind; /* recommended rebind time (usually 87.5 of lease period) */ +#if LWIP_DHCP_BOOTP_FILE + ip4_addr_t offered_si_addr; + char boot_file_name[DHCP_BOOT_FILE_LEN]; +#endif /* LWIP_DHCP_BOOTPFILE */ +#if LWIP_DHCP_DOES_ACD_CHECK + /** acd struct */ + struct acd acd; +#endif /* LWIP_DHCP_DOES_ACD_CHECK */ +}; + + +void dhcp_set_struct(struct netif *netif, struct dhcp *dhcp); +/** Remove a struct dhcp previously set to the netif using dhcp_set_struct() */ +#define dhcp_remove_struct(netif) netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, NULL) +void dhcp_cleanup(struct netif *netif); +err_t dhcp_start(struct netif *netif); +err_t dhcp_renew(struct netif *netif); +err_t dhcp_release(struct netif *netif); +void dhcp_stop(struct netif *netif); +void dhcp_release_and_stop(struct netif *netif); +void dhcp_inform(struct netif *netif); +void dhcp_network_changed_link_up(struct netif *netif); + +u8_t dhcp_supplied_address(const struct netif *netif); +/* to be called every minute */ +void dhcp_coarse_tmr(void); +/* to be called every half second */ +void dhcp_fine_tmr(void); + +#if LWIP_DHCP_GET_NTP_SRV +/** This function must exist, in other to add offered NTP servers to + * the NTP (or SNTP) engine. + * See LWIP_DHCP_MAX_NTP_SERVERS */ +extern void dhcp_set_ntp_servers(u8_t num_ntp_servers, const ip4_addr_t* ntp_server_addrs); +#endif /* LWIP_DHCP_GET_NTP_SRV */ + +#define netif_dhcp_data(netif) ((struct dhcp*)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP)) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_DHCP */ + +#endif /*LWIP_HDR_DHCP_H*/ diff --git a/middleware/lwip/src/include/lwip/dhcp6.h b/middleware/lwip/src/include/lwip/dhcp6.h new file mode 100644 index 0000000..5cc4a01 --- /dev/null +++ b/middleware/lwip/src/include/lwip/dhcp6.h @@ -0,0 +1,104 @@ +/** + * @file + * + * DHCPv6 client: IPv6 address autoconfiguration as per + * RFC 3315 (stateful DHCPv6) and + * RFC 3736 (stateless DHCPv6). + */ + +/* + * Copyright (c) 2018 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + */ + +#ifndef LWIP_HDR_IP6_DHCP6_H +#define LWIP_HDR_IP6_DHCP6_H + +#include "lwip/opt.h" + +#if LWIP_IPV6_DHCP6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/err.h" +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** period (in milliseconds) of the application calling dhcp6_tmr() */ +#define DHCP6_TIMER_MSECS 500 + +struct dhcp6 +{ + /** transaction identifier of last sent request */ + u32_t xid; + /** track PCB allocation state */ + u8_t pcb_allocated; + /** current DHCPv6 state machine state */ + u8_t state; + /** retries of current request */ + u8_t tries; + /** if request config is triggered while another action is active, this keeps track of it */ + u8_t request_config_pending; + /** #ticks with period DHCP6_TIMER_MSECS for request timeout */ + u16_t request_timeout; +#if LWIP_IPV6_DHCP6_STATEFUL + /* @todo: add more members here to keep track of stateful DHCPv6 data, like lease times */ +#endif /* LWIP_IPV6_DHCP6_STATEFUL */ +}; + +void dhcp6_set_struct(struct netif *netif, struct dhcp6 *dhcp6); +/** Remove a struct dhcp6 previously set to the netif using dhcp6_set_struct() */ +#define dhcp6_remove_struct(netif) netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, NULL) +void dhcp6_cleanup(struct netif *netif); + +err_t dhcp6_enable_stateful(struct netif *netif); +err_t dhcp6_enable_stateless(struct netif *netif); +void dhcp6_disable(struct netif *netif); + +void dhcp6_tmr(void); + +void dhcp6_nd6_ra_trigger(struct netif *netif, u8_t managed_addr_config, u8_t other_config); + +#if LWIP_DHCP6_GET_NTP_SRV +/** This function must exist, in other to add offered NTP servers to + * the NTP (or SNTP) engine. + * See LWIP_DHCP6_MAX_NTP_SERVERS */ +extern void dhcp6_set_ntp_servers(u8_t num_ntp_servers, const ip_addr_t* ntp_server_addrs); +#endif /* LWIP_DHCP6_GET_NTP_SRV */ + +#define netif_dhcp6_data(netif) ((struct dhcp6*)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6)) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6_DHCP6 */ + +#endif /* LWIP_HDR_IP6_DHCP6_H */ diff --git a/middleware/lwip/src/include/lwip/dns.h b/middleware/lwip/src/include/lwip/dns.h new file mode 100644 index 0000000..0913415 --- /dev/null +++ b/middleware/lwip/src/include/lwip/dns.h @@ -0,0 +1,131 @@ +/** + * @file + * DNS API + */ + +/** + * lwip DNS resolver header file. + + * Author: Jim Pettinato + * April 2007 + + * ported from uIP resolv.c Copyright (c) 2002-2003, Adam Dunkels. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef LWIP_HDR_DNS_H +#define LWIP_HDR_DNS_H + +#include "lwip/opt.h" + +#if LWIP_DNS + +#include "lwip/ip_addr.h" +#include "lwip/err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** DNS timer period */ +#define DNS_TMR_INTERVAL 1000 + +/* DNS resolve types: */ +#define LWIP_DNS_ADDRTYPE_IPV4 0 +#define LWIP_DNS_ADDRTYPE_IPV6 1 +#define LWIP_DNS_ADDRTYPE_IPV4_IPV6 2 /* try to resolve IPv4 first, try IPv6 if IPv4 fails only */ +#define LWIP_DNS_ADDRTYPE_IPV6_IPV4 3 /* try to resolve IPv6 first, try IPv4 if IPv6 fails only */ +#if LWIP_IPV4 && LWIP_IPV6 +#ifndef LWIP_DNS_ADDRTYPE_DEFAULT +#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV4_IPV6 +#endif +#elif LWIP_IPV4 +#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV4 +#else +#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV6 +#endif + +#if DNS_LOCAL_HOSTLIST +/** struct used for local host-list */ +struct local_hostlist_entry { + /** static hostname */ + const char *name; + /** static host address in network byteorder */ + ip_addr_t addr; + struct local_hostlist_entry *next; +}; +#define DNS_LOCAL_HOSTLIST_ELEM(name, addr_init) {name, addr_init, NULL} +#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC +#ifndef DNS_LOCAL_HOSTLIST_MAX_NAMELEN +#define DNS_LOCAL_HOSTLIST_MAX_NAMELEN DNS_MAX_NAME_LENGTH +#endif +#define LOCALHOSTLIST_ELEM_SIZE ((sizeof(struct local_hostlist_entry) + DNS_LOCAL_HOSTLIST_MAX_NAMELEN + 1)) +#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ +#endif /* DNS_LOCAL_HOSTLIST */ + +#if LWIP_IPV4 +extern const ip_addr_t dns_mquery_v4group; +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 +extern const ip_addr_t dns_mquery_v6group; +#endif /* LWIP_IPV6 */ + +/** Callback which is invoked when a hostname is found. + * A function of this type must be implemented by the application using the DNS resolver. + * @param name pointer to the name that was looked up. + * @param ipaddr pointer to an ip_addr_t containing the IP address of the hostname, + * or NULL if the name could not be found (or on any other error). + * @param callback_arg a user-specified callback argument passed to dns_gethostbyname +*/ +typedef void (*dns_found_callback)(const char *name, const ip_addr_t *ipaddr, void *callback_arg); + +void dns_init(void); +void dns_tmr(void); +void dns_setserver(u8_t numdns, const ip_addr_t *dnsserver); +const ip_addr_t* dns_getserver(u8_t numdns); +err_t dns_gethostbyname(const char *hostname, ip_addr_t *addr, + dns_found_callback found, void *callback_arg); +err_t dns_gethostbyname_addrtype(const char *hostname, ip_addr_t *addr, + dns_found_callback found, void *callback_arg, + u8_t dns_addrtype); + + +#if DNS_LOCAL_HOSTLIST +size_t dns_local_iterate(dns_found_callback iterator_fn, void *iterator_arg); +err_t dns_local_lookup(const char *hostname, ip_addr_t *addr, u8_t dns_addrtype); +#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC +int dns_local_removehost(const char *hostname, const ip_addr_t *addr); +err_t dns_local_addhost(const char *hostname, const ip_addr_t *addr); +#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ +#endif /* DNS_LOCAL_HOSTLIST */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_DNS */ + +#endif /* LWIP_HDR_DNS_H */ diff --git a/middleware/lwip/src/include/lwip/err.h b/middleware/lwip/src/include/lwip/err.h new file mode 100644 index 0000000..887d9b3 --- /dev/null +++ b/middleware/lwip/src/include/lwip/err.h @@ -0,0 +1,117 @@ +/** + * @file + * lwIP Error codes + */ +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_ERR_H +#define LWIP_HDR_ERR_H + +#include "lwip/opt.h" +#include "lwip/arch.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup infrastructure_errors Error codes + * @ingroup infrastructure + * @{ + */ + +/** Definitions for error constants. */ +typedef enum { +/** No error, everything OK. */ + ERR_OK = 0, +/** Out of memory error. */ + ERR_MEM = -1, +/** Buffer error. */ + ERR_BUF = -2, +/** Timeout. */ + ERR_TIMEOUT = -3, +/** Routing problem. */ + ERR_RTE = -4, +/** Operation in progress */ + ERR_INPROGRESS = -5, +/** Illegal value. */ + ERR_VAL = -6, +/** Operation would block. */ + ERR_WOULDBLOCK = -7, +/** Address in use. */ + ERR_USE = -8, +/** Already connecting. */ + ERR_ALREADY = -9, +/** Conn already established.*/ + ERR_ISCONN = -10, +/** Not connected. */ + ERR_CONN = -11, +/** Low-level netif error */ + ERR_IF = -12, + +/** Connection aborted. */ + ERR_ABRT = -13, +/** Connection reset. */ + ERR_RST = -14, +/** Connection closed. */ + ERR_CLSD = -15, +/** Illegal argument. */ + ERR_ARG = -16 +} err_enum_t; + +/** Define LWIP_ERR_T in cc.h if you want to use + * a different type for your platform (must be signed). */ +#ifdef LWIP_ERR_T +typedef LWIP_ERR_T err_t; +#else /* LWIP_ERR_T */ +typedef s8_t err_t; +#endif /* LWIP_ERR_T*/ + +/** + * @} + */ + +#ifdef LWIP_DEBUG +extern const char *lwip_strerr(err_t err); +#else +#define lwip_strerr(x) "" +#endif /* LWIP_DEBUG */ + +#if !NO_SYS +int err_to_errno(err_t err); +#endif /* !NO_SYS */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_ERR_H */ diff --git a/middleware/lwip/src/include/lwip/errno.h b/middleware/lwip/src/include/lwip/errno.h new file mode 100644 index 0000000..48d6b53 --- /dev/null +++ b/middleware/lwip/src/include/lwip/errno.h @@ -0,0 +1,198 @@ +/** + * @file + * Posix Errno defines + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_ERRNO_H +#define LWIP_HDR_ERRNO_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef LWIP_PROVIDE_ERRNO + +#define EPERM 1 /* Operation not permitted */ +#define ENOENT 2 /* No such file or directory */ +#define ESRCH 3 /* No such process */ +#define EINTR 4 /* Interrupted system call */ +#define EIO 5 /* I/O error */ +#define ENXIO 6 /* No such device or address */ +#define E2BIG 7 /* Arg list too long */ +#define ENOEXEC 8 /* Exec format error */ +#define EBADF 9 /* Bad file number */ +#define ECHILD 10 /* No child processes */ +#define EAGAIN 11 /* Try again */ +#define ENOMEM 12 /* Out of memory */ +#define EACCES 13 /* Permission denied */ +#define EFAULT 14 /* Bad address */ +#define ENOTBLK 15 /* Block device required */ +#define EBUSY 16 /* Device or resource busy */ +#define EEXIST 17 /* File exists */ +#define EXDEV 18 /* Cross-device link */ +#define ENODEV 19 /* No such device */ +#define ENOTDIR 20 /* Not a directory */ +#define EISDIR 21 /* Is a directory */ +#define EINVAL 22 /* Invalid argument */ +#define ENFILE 23 /* File table overflow */ +#define EMFILE 24 /* Too many open files */ +#define ENOTTY 25 /* Not a typewriter */ +#define ETXTBSY 26 /* Text file busy */ +#define EFBIG 27 /* File too large */ +#define ENOSPC 28 /* No space left on device */ +#define ESPIPE 29 /* Illegal seek */ +#define EROFS 30 /* Read-only file system */ +#define EMLINK 31 /* Too many links */ +#define EPIPE 32 /* Broken pipe */ +#define EDOM 33 /* Math argument out of domain of func */ +#define ERANGE 34 /* Math result not representable */ +#define EDEADLK 35 /* Resource deadlock would occur */ +#define ENAMETOOLONG 36 /* File name too long */ +#define ENOLCK 37 /* No record locks available */ +#define ENOSYS 38 /* Function not implemented */ +#define ENOTEMPTY 39 /* Directory not empty */ +#define ELOOP 40 /* Too many symbolic links encountered */ +#define EWOULDBLOCK EAGAIN /* Operation would block */ +#define ENOMSG 42 /* No message of desired type */ +#define EIDRM 43 /* Identifier removed */ +#define ECHRNG 44 /* Channel number out of range */ +#define EL2NSYNC 45 /* Level 2 not synchronized */ +#define EL3HLT 46 /* Level 3 halted */ +#define EL3RST 47 /* Level 3 reset */ +#define ELNRNG 48 /* Link number out of range */ +#define EUNATCH 49 /* Protocol driver not attached */ +#define ENOCSI 50 /* No CSI structure available */ +#define EL2HLT 51 /* Level 2 halted */ +#define EBADE 52 /* Invalid exchange */ +#define EBADR 53 /* Invalid request descriptor */ +#define EXFULL 54 /* Exchange full */ +#define ENOANO 55 /* No anode */ +#define EBADRQC 56 /* Invalid request code */ +#define EBADSLT 57 /* Invalid slot */ + +#define EDEADLOCK EDEADLK + +#define EBFONT 59 /* Bad font file format */ +#define ENOSTR 60 /* Device not a stream */ +#define ENODATA 61 /* No data available */ +#define ETIME 62 /* Timer expired */ +#define ENOSR 63 /* Out of streams resources */ +#define ENONET 64 /* Machine is not on the network */ +#define ENOPKG 65 /* Package not installed */ +#define EREMOTE 66 /* Object is remote */ +#define ENOLINK 67 /* Link has been severed */ +#define EADV 68 /* Advertise error */ +#define ESRMNT 69 /* Srmount error */ +#define ECOMM 70 /* Communication error on send */ +#define EPROTO 71 /* Protocol error */ +#define EMULTIHOP 72 /* Multihop attempted */ +#define EDOTDOT 73 /* RFS specific error */ +#define EBADMSG 74 /* Not a data message */ +#define EOVERFLOW 75 /* Value too large for defined data type */ +#define ENOTUNIQ 76 /* Name not unique on network */ +#define EBADFD 77 /* File descriptor in bad state */ +#define EREMCHG 78 /* Remote address changed */ +#define ELIBACC 79 /* Can not access a needed shared library */ +#define ELIBBAD 80 /* Accessing a corrupted shared library */ +#define ELIBSCN 81 /* .lib section in a.out corrupted */ +#define ELIBMAX 82 /* Attempting to link in too many shared libraries */ +#define ELIBEXEC 83 /* Cannot exec a shared library directly */ +#define EILSEQ 84 /* Illegal byte sequence */ +#define ERESTART 85 /* Interrupted system call should be restarted */ +#define ESTRPIPE 86 /* Streams pipe error */ +#define EUSERS 87 /* Too many users */ +#define ENOTSOCK 88 /* Socket operation on non-socket */ +#define EDESTADDRREQ 89 /* Destination address required */ +#define EMSGSIZE 90 /* Message too long */ +#define EPROTOTYPE 91 /* Protocol wrong type for socket */ +#define ENOPROTOOPT 92 /* Protocol not available */ +#define EPROTONOSUPPORT 93 /* Protocol not supported */ +#define ESOCKTNOSUPPORT 94 /* Socket type not supported */ +#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */ +#define EPFNOSUPPORT 96 /* Protocol family not supported */ +#define EAFNOSUPPORT 97 /* Address family not supported by protocol */ +#define EADDRINUSE 98 /* Address already in use */ +#define EADDRNOTAVAIL 99 /* Cannot assign requested address */ +#define ENETDOWN 100 /* Network is down */ +#define ENETUNREACH 101 /* Network is unreachable */ +#define ENETRESET 102 /* Network dropped connection because of reset */ +#define ECONNABORTED 103 /* Software caused connection abort */ +#define ECONNRESET 104 /* Connection reset by peer */ +#define ENOBUFS 105 /* No buffer space available */ +#define EISCONN 106 /* Transport endpoint is already connected */ +#define ENOTCONN 107 /* Transport endpoint is not connected */ +#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */ +#define ETOOMANYREFS 109 /* Too many references: cannot splice */ +#define ETIMEDOUT 110 /* Connection timed out */ +#define ECONNREFUSED 111 /* Connection refused */ +#define EHOSTDOWN 112 /* Host is down */ +#define EHOSTUNREACH 113 /* No route to host */ +#define EALREADY 114 /* Operation already in progress */ +#define EINPROGRESS 115 /* Operation now in progress */ +#define ESTALE 116 /* Stale NFS file handle */ +#define EUCLEAN 117 /* Structure needs cleaning */ +#define ENOTNAM 118 /* Not a XENIX named type file */ +#define ENAVAIL 119 /* No XENIX semaphores available */ +#define EISNAM 120 /* Is a named type file */ +#define EREMOTEIO 121 /* Remote I/O error */ +#define EDQUOT 122 /* Quota exceeded */ + +#define ENOMEDIUM 123 /* No medium found */ +#define EMEDIUMTYPE 124 /* Wrong medium type */ + +#ifndef errno +extern int errno; +#endif + +#else /* LWIP_PROVIDE_ERRNO */ + +/* Define LWIP_ERRNO_STDINCLUDE if you want to include here */ +#ifdef LWIP_ERRNO_STDINCLUDE +#include +#else /* LWIP_ERRNO_STDINCLUDE */ +/* Define LWIP_ERRNO_INCLUDE to an equivalent of to include the error defines here */ +#ifdef LWIP_ERRNO_INCLUDE +#include LWIP_ERRNO_INCLUDE +#endif /* LWIP_ERRNO_INCLUDE */ +#endif /* LWIP_ERRNO_STDINCLUDE */ + +#endif /* LWIP_PROVIDE_ERRNO */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_ERRNO_H */ diff --git a/middleware/lwip/src/include/lwip/etharp.h b/middleware/lwip/src/include/lwip/etharp.h new file mode 100644 index 0000000..48a1d22 --- /dev/null +++ b/middleware/lwip/src/include/lwip/etharp.h @@ -0,0 +1,110 @@ +/** + * @file + * Ethernet output function - handles OUTGOING ethernet level traffic, implements + * ARP resolving. + * To be used in most low-level netif implementations + */ + +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * Copyright (c) 2003-2004 Leon Woestenberg + * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#ifndef LWIP_HDR_NETIF_ETHARP_H +#define LWIP_HDR_NETIF_ETHARP_H + +#include "lwip/opt.h" + +#if LWIP_ARP || LWIP_ETHERNET /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/pbuf.h" +#include "lwip/ip4_addr.h" +#include "lwip/netif.h" +#include "lwip/ip4.h" +#include "lwip/prot/ethernet.h" + +#if LWIP_IPV4 && LWIP_ARP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/prot/etharp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** 1 seconds period */ +#define ARP_TMR_INTERVAL 1000 + +#if ARP_QUEUEING +/** struct for queueing outgoing packets for unknown address + * defined here to be accessed by memp.h + */ +struct etharp_q_entry { + struct etharp_q_entry *next; + struct pbuf *p; +}; +#endif /* ARP_QUEUEING */ + +#define etharp_init() /* Compatibility define, no init needed. */ +void etharp_tmr(void); +ssize_t etharp_find_addr(struct netif *netif, const ip4_addr_t *ipaddr, + struct eth_addr **eth_ret, const ip4_addr_t **ip_ret); +int etharp_get_entry(size_t i, ip4_addr_t **ipaddr, struct netif **netif, struct eth_addr **eth_ret); +err_t etharp_output(struct netif *netif, struct pbuf *q, const ip4_addr_t *ipaddr); +err_t etharp_query(struct netif *netif, const ip4_addr_t *ipaddr, struct pbuf *q); +err_t etharp_request(struct netif *netif, const ip4_addr_t *ipaddr); +/** For Ethernet network interfaces, we might want to send "gratuitous ARP"; + * this is an ARP packet sent by a node in order to spontaneously cause other + * nodes to update an entry in their ARP cache. + * From RFC 3220 "IP Mobility Support for IPv4" section 4.6. */ +#define etharp_gratuitous(netif) etharp_request((netif), netif_ip4_addr(netif)) +void etharp_cleanup_netif(struct netif *netif); + +#if LWIP_ACD +err_t etharp_acd_probe(struct netif *netif, const ip4_addr_t *ipaddr); +err_t etharp_acd_announce(struct netif *netif, const ip4_addr_t *ipaddr); +#endif /* LWIP_ACD */ + +#if ETHARP_SUPPORT_STATIC_ENTRIES +err_t etharp_add_static_entry(const ip4_addr_t *ipaddr, struct eth_addr *ethaddr); +err_t etharp_remove_static_entry(const ip4_addr_t *ipaddr); +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ + +void etharp_input(struct pbuf *p, struct netif *netif); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV4 && LWIP_ARP */ +#endif /* LWIP_ARP || LWIP_ETHERNET */ + +#endif /* LWIP_HDR_NETIF_ETHARP_H */ diff --git a/middleware/lwip/src/include/lwip/ethip6.h b/middleware/lwip/src/include/lwip/ethip6.h new file mode 100644 index 0000000..5e88dff --- /dev/null +++ b/middleware/lwip/src/include/lwip/ethip6.h @@ -0,0 +1,68 @@ +/** + * @file + * + * Ethernet output for IPv6. Uses ND tables for link-layer addressing. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#ifndef LWIP_HDR_ETHIP6_H +#define LWIP_HDR_ETHIP6_H + +#include "lwip/opt.h" + +#if LWIP_IPV6 && LWIP_ETHERNET /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/pbuf.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/netif.h" + + +#ifdef __cplusplus +extern "C" { +#endif + + +err_t ethip6_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6 && LWIP_ETHERNET */ + +#endif /* LWIP_HDR_ETHIP6_H */ diff --git a/middleware/lwip/src/include/lwip/icmp.h b/middleware/lwip/src/include/lwip/icmp.h new file mode 100644 index 0000000..f5a31fd --- /dev/null +++ b/middleware/lwip/src/include/lwip/icmp.h @@ -0,0 +1,110 @@ +/** + * @file + * ICMP API + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_ICMP_H +#define LWIP_HDR_ICMP_H + +#include "lwip/opt.h" +#include "lwip/pbuf.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/prot/icmp.h" + +#if LWIP_IPV6 && LWIP_ICMP6 +#include "lwip/icmp6.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/** ICMP destination unreachable codes */ +enum icmp_dur_type { + /** net unreachable */ + ICMP_DUR_NET = 0, + /** host unreachable */ + ICMP_DUR_HOST = 1, + /** protocol unreachable */ + ICMP_DUR_PROTO = 2, + /** port unreachable */ + ICMP_DUR_PORT = 3, + /** fragmentation needed and DF set */ + ICMP_DUR_FRAG = 4, + /** source route failed */ + ICMP_DUR_SR = 5 +}; + +/** ICMP time exceeded codes */ +enum icmp_te_type { + /** time to live exceeded in transit */ + ICMP_TE_TTL = 0, + /** fragment reassembly time exceeded */ + ICMP_TE_FRAG = 1 +}; + +#if LWIP_IPV4 && LWIP_ICMP /* don't build if not configured for use in lwipopts.h */ + +void icmp_input(struct pbuf *p, struct netif *inp); +void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t); +void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t); + +#endif /* LWIP_IPV4 && LWIP_ICMP */ + +#if LWIP_IPV4 && LWIP_IPV6 +#if LWIP_ICMP && LWIP_ICMP6 +#define icmp_port_unreach(isipv6, pbuf) ((isipv6) ? \ + icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT) : \ + icmp_dest_unreach(pbuf, ICMP_DUR_PORT)) +#elif LWIP_ICMP +#define icmp_port_unreach(isipv6, pbuf) do{ if(!(isipv6)) { icmp_dest_unreach(pbuf, ICMP_DUR_PORT);}}while(0) +#elif LWIP_ICMP6 +#define icmp_port_unreach(isipv6, pbuf) do{ if(isipv6) { icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT);}}while(0) +#else +#define icmp_port_unreach(isipv6, pbuf) +#endif +#elif LWIP_IPV6 && LWIP_ICMP6 +#define icmp_port_unreach(isipv6, pbuf) icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT) +#elif LWIP_IPV4 && LWIP_ICMP +#define icmp_port_unreach(isipv6, pbuf) icmp_dest_unreach(pbuf, ICMP_DUR_PORT) +#else /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) */ +#define icmp_port_unreach(isipv6, pbuf) +#endif /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) LWIP_IPV4*/ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_ICMP_H */ diff --git a/middleware/lwip/src/include/lwip/icmp6.h b/middleware/lwip/src/include/lwip/icmp6.h new file mode 100644 index 0000000..0ccb789 --- /dev/null +++ b/middleware/lwip/src/include/lwip/icmp6.h @@ -0,0 +1,72 @@ +/** + * @file + * + * IPv6 version of ICMP, as per RFC 4443. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ +#ifndef LWIP_HDR_ICMP6_H +#define LWIP_HDR_ICMP6_H + +#include "lwip/opt.h" +#include "lwip/pbuf.h" +#include "lwip/ip6_addr.h" +#include "lwip/netif.h" +#include "lwip/prot/icmp6.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_ICMP6 && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +void icmp6_input(struct pbuf *p, struct netif *inp); +void icmp6_dest_unreach(struct pbuf *p, enum icmp6_dur_code c); +void icmp6_packet_too_big(struct pbuf *p, u32_t mtu); +void icmp6_time_exceeded(struct pbuf *p, enum icmp6_te_code c); +void icmp6_time_exceeded_with_addrs(struct pbuf *p, enum icmp6_te_code c, + const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr); +void icmp6_param_problem(struct pbuf *p, enum icmp6_pp_code c, const void *pointer); + +#endif /* LWIP_ICMP6 && LWIP_IPV6 */ + + +#ifdef __cplusplus +} +#endif + + +#endif /* LWIP_HDR_ICMP6_H */ diff --git a/middleware/lwip/src/include/lwip/if_api.h b/middleware/lwip/src/include/lwip/if_api.h new file mode 100644 index 0000000..b7269e2 --- /dev/null +++ b/middleware/lwip/src/include/lwip/if_api.h @@ -0,0 +1,70 @@ +/** + * @file + * Interface Identification APIs from: + * RFC 3493: Basic Socket Interface Extensions for IPv6 + * Section 4: Interface Identification + */ + +/* + * Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Joel Cunningham + * + */ +#ifndef LWIP_HDR_IF_H +#define LWIP_HDR_IF_H + +#include "lwip/opt.h" + +#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef IF_NAMESIZE +#define IF_NAMESIZE NETIF_NAMESIZE +#endif + +char * lwip_if_indextoname(unsigned int ifindex, char *ifname); +unsigned int lwip_if_nametoindex(const char *ifname); + +#if LWIP_COMPAT_SOCKETS +#define if_indextoname(ifindex, ifname) lwip_if_indextoname(ifindex,ifname) +#define if_nametoindex(ifname) lwip_if_nametoindex(ifname) +#endif /* LWIP_COMPAT_SOCKETS */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_SOCKET */ + +#endif /* LWIP_HDR_IF_H */ diff --git a/middleware/lwip/src/include/lwip/igmp.h b/middleware/lwip/src/include/lwip/igmp.h new file mode 100644 index 0000000..0a16db0 --- /dev/null +++ b/middleware/lwip/src/include/lwip/igmp.h @@ -0,0 +1,115 @@ +/** + * @file + * IGMP API + */ + +/* + * Copyright (c) 2002 CITEL Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is a contribution to the lwIP TCP/IP stack. + * The Swedish Institute of Computer Science and Adam Dunkels + * are specifically granted permission to redistribute this + * source code. +*/ + +#ifndef LWIP_HDR_IGMP_H +#define LWIP_HDR_IGMP_H + +#include "lwip/opt.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/pbuf.h" + +#if LWIP_IPV4 && LWIP_IGMP /* don't build if not configured for use in lwipopts.h */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* IGMP timer */ +#define IGMP_TMR_INTERVAL 100 /* Milliseconds */ +#define IGMP_V1_DELAYING_MEMBER_TMR (1000/IGMP_TMR_INTERVAL) +#define IGMP_JOIN_DELAYING_MEMBER_TMR (500 /IGMP_TMR_INTERVAL) + +/* Compatibility defines (don't use for new code) */ +#define IGMP_DEL_MAC_FILTER NETIF_DEL_MAC_FILTER +#define IGMP_ADD_MAC_FILTER NETIF_ADD_MAC_FILTER + +/** + * igmp group structure - there is + * a list of groups for each interface + * these should really be linked from the interface, but + * if we keep them separate we will not affect the lwip original code + * too much + * + * There will be a group for the all systems group address but this + * will not run the state machine as it is used to kick off reports + * from all the other groups + */ +struct igmp_group { + /** next link */ + struct igmp_group *next; + /** multicast address */ + ip4_addr_t group_address; + /** signifies we were the last person to report */ + u8_t last_reporter_flag; + /** current state of the group */ + u8_t group_state; + /** timer for reporting, negative is OFF */ + u16_t timer; + /** counter of simultaneous uses */ + u8_t use; +}; + +/* Prototypes */ +void igmp_init(void); +err_t igmp_start(struct netif *netif); +err_t igmp_stop(struct netif *netif); +void igmp_report_groups(struct netif *netif); +struct igmp_group *igmp_lookfor_group(struct netif *ifp, const ip4_addr_t *addr); +void igmp_input(struct pbuf *p, struct netif *inp, const ip4_addr_t *dest); +err_t igmp_joingroup(const ip4_addr_t *ifaddr, const ip4_addr_t *groupaddr); +err_t igmp_joingroup_netif(struct netif *netif, const ip4_addr_t *groupaddr); +err_t igmp_leavegroup(const ip4_addr_t *ifaddr, const ip4_addr_t *groupaddr); +err_t igmp_leavegroup_netif(struct netif *netif, const ip4_addr_t *groupaddr); +void igmp_tmr(void); + +/** @ingroup igmp + * Get list head of IGMP groups for netif. + * Note: The allsystems group IP is contained in the list as first entry. + * @see @ref netif_set_igmp_mac_filter() + */ +#define netif_igmp_data(netif) ((struct igmp_group *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_IGMP)) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV4 && LWIP_IGMP */ + +#endif /* LWIP_HDR_IGMP_H */ diff --git a/middleware/lwip/src/include/lwip/inet.h b/middleware/lwip/src/include/lwip/inet.h new file mode 100644 index 0000000..0970885 --- /dev/null +++ b/middleware/lwip/src/include/lwip/inet.h @@ -0,0 +1,188 @@ +/** + * @file + * This file (together with sockets.h) aims to provide structs and functions from + * - arpa/inet.h + * - netinet/in.h + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_INET_H +#define LWIP_HDR_INET_H + +#include "lwip/opt.h" + +#if LWIP_SOCKET_EXTERNAL_HEADERS +#include LWIP_SOCKET_EXTERNAL_HEADER_INET_H +#else /* LWIP_SOCKET_EXTERNAL_HEADERS */ + +#include "lwip/def.h" +#include "lwip/ip_addr.h" +#include "lwip/ip6_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* If your port already typedef's in_addr_t, define IN_ADDR_T_DEFINED + to prevent this code from redefining it. */ +#if !defined(in_addr_t) && !defined(IN_ADDR_T_DEFINED) +typedef u32_t in_addr_t; +#endif + +struct in_addr { + in_addr_t s_addr; +}; + +struct in6_addr { + union { + u32_t u32_addr[4]; + u8_t u8_addr[16]; + } un; +#define s6_addr un.u8_addr +}; + +/** 255.255.255.255 */ +#define INADDR_NONE IPADDR_NONE +/** 127.0.0.1 */ +#define INADDR_LOOPBACK IPADDR_LOOPBACK +/** 0.0.0.0 */ +#define INADDR_ANY IPADDR_ANY +/** 255.255.255.255 */ +#define INADDR_BROADCAST IPADDR_BROADCAST + +/** This macro can be used to initialize a variable of type struct in6_addr + to the IPv6 wildcard address. */ +#define IN6ADDR_ANY_INIT {{{0,0,0,0}}} +/** This macro can be used to initialize a variable of type struct in6_addr + to the IPv6 loopback address. */ +#define IN6ADDR_LOOPBACK_INIT {{{0,0,0,PP_HTONL(1)}}} +/** This variable is initialized by the system to contain the wildcard IPv6 address. */ +extern const struct in6_addr in6addr_any; + +/* Definitions of the bits in an (IPv4) Internet address integer. + + On subnets, host and network parts are found according to + the subnet mask, not these masks. */ +#define IN_CLASSA(a) IP_CLASSA(a) +#define IN_CLASSA_NET IP_CLASSA_NET +#define IN_CLASSA_NSHIFT IP_CLASSA_NSHIFT +#define IN_CLASSA_HOST IP_CLASSA_HOST +#define IN_CLASSA_MAX IP_CLASSA_MAX + +#define IN_CLASSB(b) IP_CLASSB(b) +#define IN_CLASSB_NET IP_CLASSB_NET +#define IN_CLASSB_NSHIFT IP_CLASSB_NSHIFT +#define IN_CLASSB_HOST IP_CLASSB_HOST +#define IN_CLASSB_MAX IP_CLASSB_MAX + +#define IN_CLASSC(c) IP_CLASSC(c) +#define IN_CLASSC_NET IP_CLASSC_NET +#define IN_CLASSC_NSHIFT IP_CLASSC_NSHIFT +#define IN_CLASSC_HOST IP_CLASSC_HOST +#define IN_CLASSC_MAX IP_CLASSC_MAX + +#define IN_CLASSD(d) IP_CLASSD(d) +#define IN_CLASSD_NET IP_CLASSD_NET /* These ones aren't really */ +#define IN_CLASSD_NSHIFT IP_CLASSD_NSHIFT /* net and host fields, but */ +#define IN_CLASSD_HOST IP_CLASSD_HOST /* routing needn't know. */ +#define IN_CLASSD_MAX IP_CLASSD_MAX + +#define IN_MULTICAST(a) IP_MULTICAST(a) + +#define IN_EXPERIMENTAL(a) IP_EXPERIMENTAL(a) +#define IN_BADCLASS(a) IP_BADCLASS(a) + +#define IN_LOOPBACKNET IP_LOOPBACKNET + +#define IN6_IS_ADDR_UNSPECIFIED(a) ip6_addr_isany((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_LOOPBACK(a) ip6_addr_isloopback((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_MULTICAST(a) ip6_addr_ismulticast((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_LINKLOCAL(a) ip6_addr_islinklocal((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_SITELOCAL(a) ip6_addr_issitelocal((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_V4MAPPED(a) ip6_addr_isipv4mappedipv6((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_V4COMPAT(a) ip6_addr_isipv4compat((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_MC_NODELOCAL(a) ip6_addr_ismulticast_iflocal((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_MC_LINKLOCAL(a) ip6_addr_ismulticast_linklocal((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_MC_SITELOCAL(a) ip6_addr_ismulticast_sitelocal((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_MC_ORGLOCAL(a) ip6_addr_ismulticast_orglocal((ip6_addr_t*)(a)) +#define IN6_IS_ADDR_MC_GLOBAL(a) ip6_addr_ismulticast_global((ip6_addr_t*)(a)) + +#ifndef INET_ADDRSTRLEN +#define INET_ADDRSTRLEN IP4ADDR_STRLEN_MAX +#endif +#if LWIP_IPV6 +#ifndef INET6_ADDRSTRLEN +#define INET6_ADDRSTRLEN IP6ADDR_STRLEN_MAX +#endif +#endif + +#if LWIP_IPV4 + +#define inet_addr_from_ip4addr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr)) +#define inet_addr_to_ip4addr(target_ipaddr, source_inaddr) (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr)) + +/* directly map this to the lwip internal functions */ +#define inet_addr(cp) ipaddr_addr(cp) +#define inet_aton(cp, addr) ip4addr_aton(cp, (ip4_addr_t*)addr) +#define inet_ntoa(addr) ip4addr_ntoa((const ip4_addr_t*)&(addr)) +#define inet_ntoa_r(addr, buf, buflen) ip4addr_ntoa_r((const ip4_addr_t*)&(addr), buf, buflen) + +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 +#define inet6_addr_from_ip6addr(target_in6addr, source_ip6addr) {(target_in6addr)->un.u32_addr[0] = (source_ip6addr)->addr[0]; \ + (target_in6addr)->un.u32_addr[1] = (source_ip6addr)->addr[1]; \ + (target_in6addr)->un.u32_addr[2] = (source_ip6addr)->addr[2]; \ + (target_in6addr)->un.u32_addr[3] = (source_ip6addr)->addr[3];} +#define inet6_addr_to_ip6addr(target_ip6addr, source_in6addr) {(target_ip6addr)->addr[0] = (source_in6addr)->un.u32_addr[0]; \ + (target_ip6addr)->addr[1] = (source_in6addr)->un.u32_addr[1]; \ + (target_ip6addr)->addr[2] = (source_in6addr)->un.u32_addr[2]; \ + (target_ip6addr)->addr[3] = (source_in6addr)->un.u32_addr[3]; \ + ip6_addr_clear_zone(target_ip6addr);} + +/* directly map this to the lwip internal functions */ +#define inet6_aton(cp, addr) ip6addr_aton(cp, (ip6_addr_t*)addr) +#define inet6_ntoa(addr) ip6addr_ntoa((const ip6_addr_t*)&(addr)) +#define inet6_ntoa_r(addr, buf, buflen) ip6addr_ntoa_r((const ip6_addr_t*)&(addr), buf, buflen) + +#endif /* LWIP_IPV6 */ + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_SOCKET_EXTERNAL_HEADERS */ + +#endif /* LWIP_HDR_INET_H */ diff --git a/middleware/lwip/src/include/lwip/inet_chksum.h b/middleware/lwip/src/include/lwip/inet_chksum.h new file mode 100644 index 0000000..33296d2 --- /dev/null +++ b/middleware/lwip/src/include/lwip/inet_chksum.h @@ -0,0 +1,104 @@ +/** + * @file + * IP checksum calculation functions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_INET_CHKSUM_H +#define LWIP_HDR_INET_CHKSUM_H + +#include "lwip/opt.h" + +#include "lwip/pbuf.h" +#include "lwip/ip_addr.h" + +/** Swap the bytes in an u16_t: much like lwip_htons() for little-endian */ +#ifndef SWAP_BYTES_IN_WORD +#define SWAP_BYTES_IN_WORD(w) (((w) & 0xff) << 8) | (((w) & 0xff00) >> 8) +#endif /* SWAP_BYTES_IN_WORD */ + +/** Split an u32_t in two u16_ts and add them up */ +#ifndef FOLD_U32T +#define FOLD_U32T(u) ((u32_t)(((u) >> 16) + ((u) & 0x0000ffffUL))) +#endif + +#if LWIP_CHECKSUM_ON_COPY +/** Function-like macro: same as MEMCPY but returns the checksum of copied data + as u16_t */ +# ifndef LWIP_CHKSUM_COPY +# define LWIP_CHKSUM_COPY(dst, src, len) lwip_chksum_copy(dst, src, len) +# ifndef LWIP_CHKSUM_COPY_ALGORITHM +# define LWIP_CHKSUM_COPY_ALGORITHM 1 +# endif /* LWIP_CHKSUM_COPY_ALGORITHM */ +# else /* LWIP_CHKSUM_COPY */ +# define LWIP_CHKSUM_COPY_ALGORITHM 0 +# endif /* LWIP_CHKSUM_COPY */ +#else /* LWIP_CHECKSUM_ON_COPY */ +# define LWIP_CHKSUM_COPY_ALGORITHM 0 +#endif /* LWIP_CHECKSUM_ON_COPY */ + +#ifdef __cplusplus +extern "C" { +#endif + +u16_t inet_chksum(const void *dataptr, u16_t len); +u16_t inet_chksum_pbuf(struct pbuf *p); +#if LWIP_CHKSUM_COPY_ALGORITHM +u16_t lwip_chksum_copy(void *dst, const void *src, u16_t len); +#endif /* LWIP_CHKSUM_COPY_ALGORITHM */ + +#if LWIP_IPV4 +u16_t inet_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, + const ip4_addr_t *src, const ip4_addr_t *dest); +u16_t inet_chksum_pseudo_partial(struct pbuf *p, u8_t proto, + u16_t proto_len, u16_t chksum_len, const ip4_addr_t *src, const ip4_addr_t *dest); +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 +u16_t ip6_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, + const ip6_addr_t *src, const ip6_addr_t *dest); +u16_t ip6_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, + u16_t chksum_len, const ip6_addr_t *src, const ip6_addr_t *dest); +#endif /* LWIP_IPV6 */ + + +u16_t ip_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, + const ip_addr_t *src, const ip_addr_t *dest); +u16_t ip_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, + u16_t chksum_len, const ip_addr_t *src, const ip_addr_t *dest); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_INET_H */ diff --git a/middleware/lwip/src/include/lwip/init.h b/middleware/lwip/src/include/lwip/init.h new file mode 100644 index 0000000..34e8937 --- /dev/null +++ b/middleware/lwip/src/include/lwip/init.h @@ -0,0 +1,100 @@ +/** + * @file + * lwIP initialization API + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_INIT_H +#define LWIP_HDR_INIT_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup lwip_version Version + * @ingroup lwip + * @{ + */ + +/** X.x.x: Major version of the stack */ +#define LWIP_VERSION_MAJOR 2 +/** x.X.x: Minor version of the stack */ +#define LWIP_VERSION_MINOR 2 +/** x.x.X: Revision of the stack */ +#define LWIP_VERSION_REVISION 0 +/** For release candidates, this is set to 1..254 + * For official releases, this is set to 255 (LWIP_RC_RELEASE) + * For development versions (Git), this is set to 0 (LWIP_RC_DEVELOPMENT) */ +#define LWIP_VERSION_RC LWIP_RC_DEVELOPMENT + +/** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */ +#define LWIP_RC_RELEASE 255 +/** LWIP_VERSION_RC is set to LWIP_RC_DEVELOPMENT for Git versions */ +#define LWIP_RC_DEVELOPMENT 0 + +#define LWIP_VERSION_IS_RELEASE (LWIP_VERSION_RC == LWIP_RC_RELEASE) +#define LWIP_VERSION_IS_DEVELOPMENT (LWIP_VERSION_RC == LWIP_RC_DEVELOPMENT) +#define LWIP_VERSION_IS_RC ((LWIP_VERSION_RC != LWIP_RC_RELEASE) && (LWIP_VERSION_RC != LWIP_RC_DEVELOPMENT)) + +/* Some helper defines to get a version string */ +#define LWIP_VERSTR2(x) #x +#define LWIP_VERSTR(x) LWIP_VERSTR2(x) +#if LWIP_VERSION_IS_RELEASE +#define LWIP_VERSION_STRING_SUFFIX "" +#elif LWIP_VERSION_IS_DEVELOPMENT +#define LWIP_VERSION_STRING_SUFFIX "d" +#else +#define LWIP_VERSION_STRING_SUFFIX "rc" LWIP_VERSTR(LWIP_VERSION_RC) +#endif + +/** Provides the version of the stack */ +#define LWIP_VERSION ((LWIP_VERSION_MAJOR) << 24 | (LWIP_VERSION_MINOR) << 16 | \ + (LWIP_VERSION_REVISION) << 8 | (LWIP_VERSION_RC)) +/** Provides the version of the stack as string */ +#define LWIP_VERSION_STRING LWIP_VERSTR(LWIP_VERSION_MAJOR) "." LWIP_VERSTR(LWIP_VERSION_MINOR) "." LWIP_VERSTR(LWIP_VERSION_REVISION) LWIP_VERSION_STRING_SUFFIX + +/** + * @} + */ + +/* Modules initialization */ +void lwip_init(void); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_INIT_H */ diff --git a/middleware/lwip/src/include/lwip/init.h.cmake.in b/middleware/lwip/src/include/lwip/init.h.cmake.in new file mode 100644 index 0000000..9b609b7 --- /dev/null +++ b/middleware/lwip/src/include/lwip/init.h.cmake.in @@ -0,0 +1,100 @@ +/** + * @file + * lwIP initialization API + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_INIT_H +#define LWIP_HDR_INIT_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup lwip_version Version + * @ingroup lwip + * @{ + */ + +/** X.x.x: Major version of the stack */ +#define LWIP_VERSION_MAJOR ${LWIP_VERSION_MAJOR} +/** x.X.x: Minor version of the stack */ +#define LWIP_VERSION_MINOR ${LWIP_VERSION_MINOR} +/** x.x.X: Revision of the stack */ +#define LWIP_VERSION_REVISION ${LWIP_VERSION_REVISION} +/** For release candidates, this is set to 1..254 + * For official releases, this is set to 255 (LWIP_RC_RELEASE) + * For development versions (Git), this is set to 0 (LWIP_RC_DEVELOPMENT) */ +#define LWIP_VERSION_RC ${LWIP_VERSION_RC} + +/** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */ +#define LWIP_RC_RELEASE 255 +/** LWIP_VERSION_RC is set to LWIP_RC_DEVELOPMENT for Git versions */ +#define LWIP_RC_DEVELOPMENT 0 + +#define LWIP_VERSION_IS_RELEASE (LWIP_VERSION_RC == LWIP_RC_RELEASE) +#define LWIP_VERSION_IS_DEVELOPMENT (LWIP_VERSION_RC == LWIP_RC_DEVELOPMENT) +#define LWIP_VERSION_IS_RC ((LWIP_VERSION_RC != LWIP_RC_RELEASE) && (LWIP_VERSION_RC != LWIP_RC_DEVELOPMENT)) + +/* Some helper defines to get a version string */ +#define LWIP_VERSTR2(x) #x +#define LWIP_VERSTR(x) LWIP_VERSTR2(x) +#if LWIP_VERSION_IS_RELEASE +#define LWIP_VERSION_STRING_SUFFIX "" +#elif LWIP_VERSION_IS_DEVELOPMENT +#define LWIP_VERSION_STRING_SUFFIX "d" +#else +#define LWIP_VERSION_STRING_SUFFIX "rc" LWIP_VERSTR(LWIP_VERSION_RC) +#endif + +/** Provides the version of the stack */ +#define LWIP_VERSION ((LWIP_VERSION_MAJOR) << 24 | (LWIP_VERSION_MINOR) << 16 | \ + (LWIP_VERSION_REVISION) << 8 | (LWIP_VERSION_RC)) +/** Provides the version of the stack as string */ +#define LWIP_VERSION_STRING LWIP_VERSTR(LWIP_VERSION_MAJOR) "." LWIP_VERSTR(LWIP_VERSION_MINOR) "." LWIP_VERSTR(LWIP_VERSION_REVISION) LWIP_VERSION_STRING_SUFFIX + +/** + * @} + */ + +/* Modules initialization */ +void lwip_init(void); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_INIT_H */ diff --git a/middleware/lwip/src/include/lwip/ip.h b/middleware/lwip/src/include/lwip/ip.h new file mode 100644 index 0000000..68aed6a --- /dev/null +++ b/middleware/lwip/src/include/lwip/ip.h @@ -0,0 +1,328 @@ +/** + * @file + * IP API + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_IP_H +#define LWIP_HDR_IP_H + +#include "lwip/opt.h" + +#include "lwip/def.h" +#include "lwip/pbuf.h" +#include "lwip/ip_addr.h" +#include "lwip/err.h" +#include "lwip/netif.h" +#include "lwip/ip4.h" +#include "lwip/ip6.h" +#include "lwip/prot/ip.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* This is passed as the destination address to ip_output_if (not + to ip_output), meaning that an IP header already is constructed + in the pbuf. This is used when TCP retransmits. */ +#define LWIP_IP_HDRINCL NULL + +/** pbufs passed to IP must have a ref-count of 1 as their payload pointer + gets altered as the packet is passed down the stack */ +#ifndef LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX +#define LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p) LWIP_ASSERT("p->ref == 1", (p)->ref == 1) +#endif + +#if LWIP_NETIF_USE_HINTS +#define IP_PCB_NETIFHINT ;struct netif_hint netif_hints +#else /* LWIP_NETIF_USE_HINTS */ +#define IP_PCB_NETIFHINT +#endif /* LWIP_NETIF_USE_HINTS */ + +/** This is the common part of all PCB types. It needs to be at the + beginning of a PCB type definition. It is located here so that + changes to this common part are made in one location instead of + having to change all PCB structs. */ +#define IP_PCB \ + /* ip addresses in network byte order */ \ + ip_addr_t local_ip; \ + ip_addr_t remote_ip; \ + /* Bound netif index */ \ + u8_t netif_idx; \ + /* Socket options */ \ + u8_t so_options; \ + /* Type Of Service */ \ + u8_t tos; \ + /* Time To Live */ \ + u8_t ttl \ + /* link layer address resolution hint */ \ + IP_PCB_NETIFHINT + +struct ip_pcb { + /* Common members of all PCB types */ + IP_PCB; +}; + +/* + * Option flags per-socket. These are the same like SO_XXX in sockets.h + */ +#define SOF_REUSEADDR 0x04U /* allow local address reuse */ +#define SOF_KEEPALIVE 0x08U /* keep connections alive */ +#define SOF_BROADCAST 0x20U /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */ + +/* These flags are inherited (e.g. from a listen-pcb to a connection-pcb): */ +#define SOF_INHERITED (SOF_REUSEADDR|SOF_KEEPALIVE) + +/** Global variables of this module, kept in a struct for efficient access using base+index. */ +struct ip_globals +{ + /** The interface that accepted the packet for the current callback invocation. */ + struct netif *current_netif; + /** The interface that received the packet for the current callback invocation. */ + struct netif *current_input_netif; +#if LWIP_IPV4 + /** Header of the input packet currently being processed. */ + const struct ip_hdr *current_ip4_header; +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + /** Header of the input IPv6 packet currently being processed. */ + struct ip6_hdr *current_ip6_header; +#endif /* LWIP_IPV6 */ + /** Total header length of current_ip4/6_header (i.e. after this, the UDP/TCP header starts) */ + u16_t current_ip_header_tot_len; + /** Source IP address of current_header */ + ip_addr_t current_iphdr_src; + /** Destination IP address of current_header */ + ip_addr_t current_iphdr_dest; +}; +extern struct ip_globals ip_data; + + +/** Get the interface that accepted the current packet. + * This may or may not be the receiving netif, depending on your netif/network setup. + * This function must only be called from a receive callback (udp_recv, + * raw_recv, tcp_accept). It will return NULL otherwise. */ +#define ip_current_netif() (ip_data.current_netif) +/** Get the interface that received the current packet. + * This function must only be called from a receive callback (udp_recv, + * raw_recv, tcp_accept). It will return NULL otherwise. */ +#define ip_current_input_netif() (ip_data.current_input_netif) +/** Total header length of ip(6)_current_header() (i.e. after this, the UDP/TCP header starts) */ +#define ip_current_header_tot_len() (ip_data.current_ip_header_tot_len) +/** Source IP address of current_header */ +#define ip_current_src_addr() (&ip_data.current_iphdr_src) +/** Destination IP address of current_header */ +#define ip_current_dest_addr() (&ip_data.current_iphdr_dest) + +#if LWIP_IPV4 && LWIP_IPV6 +/** Get the IPv4 header of the current packet. + * This function must only be called from a receive callback (udp_recv, + * raw_recv, tcp_accept). It will return NULL otherwise. */ +#define ip4_current_header() ip_data.current_ip4_header +/** Get the IPv6 header of the current packet. + * This function must only be called from a receive callback (udp_recv, + * raw_recv, tcp_accept). It will return NULL otherwise. */ +#define ip6_current_header() ((const struct ip6_hdr*)(ip_data.current_ip6_header)) +/** Returns TRUE if the current IP input packet is IPv6, FALSE if it is IPv4 */ +#define ip_current_is_v6() (ip6_current_header() != NULL) +/** Source IPv6 address of current_header */ +#define ip6_current_src_addr() (ip_2_ip6(&ip_data.current_iphdr_src)) +/** Destination IPv6 address of current_header */ +#define ip6_current_dest_addr() (ip_2_ip6(&ip_data.current_iphdr_dest)) +/** Get the transport layer protocol */ +#define ip_current_header_proto() (ip_current_is_v6() ? \ + IP6H_NEXTH(ip6_current_header()) :\ + IPH_PROTO(ip4_current_header())) +/** Get the transport layer header */ +#define ip_next_header_ptr() ((const void*)((ip_current_is_v6() ? \ + (const u8_t*)ip6_current_header() : (const u8_t*)ip4_current_header()) + ip_current_header_tot_len())) + +/** Source IP4 address of current_header */ +#define ip4_current_src_addr() (ip_2_ip4(&ip_data.current_iphdr_src)) +/** Destination IP4 address of current_header */ +#define ip4_current_dest_addr() (ip_2_ip4(&ip_data.current_iphdr_dest)) + +#elif LWIP_IPV4 /* LWIP_IPV4 && LWIP_IPV6 */ + +/** Get the IPv4 header of the current packet. + * This function must only be called from a receive callback (udp_recv, + * raw_recv, tcp_accept). It will return NULL otherwise. */ +#define ip4_current_header() ip_data.current_ip4_header +/** Always returns FALSE when only supporting IPv4 only */ +#define ip_current_is_v6() 0 +/** Get the transport layer protocol */ +#define ip_current_header_proto() IPH_PROTO(ip4_current_header()) +/** Get the transport layer header */ +#define ip_next_header_ptr() ((const void*)((const u8_t*)ip4_current_header() + ip_current_header_tot_len())) +/** Source IP4 address of current_header */ +#define ip4_current_src_addr() (&ip_data.current_iphdr_src) +/** Destination IP4 address of current_header */ +#define ip4_current_dest_addr() (&ip_data.current_iphdr_dest) + +#elif LWIP_IPV6 /* LWIP_IPV4 && LWIP_IPV6 */ + +/** Get the IPv6 header of the current packet. + * This function must only be called from a receive callback (udp_recv, + * raw_recv, tcp_accept). It will return NULL otherwise. */ +#define ip6_current_header() ((const struct ip6_hdr*)(ip_data.current_ip6_header)) +/** Always returns TRUE when only supporting IPv6 only */ +#define ip_current_is_v6() 1 +/** Get the transport layer protocol */ +#define ip_current_header_proto() IP6H_NEXTH(ip6_current_header()) +/** Get the transport layer header */ +#define ip_next_header_ptr() ((const void*)(((const u8_t*)ip6_current_header()) + ip_current_header_tot_len())) +/** Source IP6 address of current_header */ +#define ip6_current_src_addr() (&ip_data.current_iphdr_src) +/** Destination IP6 address of current_header */ +#define ip6_current_dest_addr() (&ip_data.current_iphdr_dest) + +#endif /* LWIP_IPV6 */ + +/** Union source address of current_header */ +#define ip_current_src_addr() (&ip_data.current_iphdr_src) +/** Union destination address of current_header */ +#define ip_current_dest_addr() (&ip_data.current_iphdr_dest) + +/** Gets an IP pcb option (SOF_* flags) */ +#define ip_get_option(pcb, opt) ((pcb)->so_options & (opt)) +/** Sets an IP pcb option (SOF_* flags) */ +#define ip_set_option(pcb, opt) ((pcb)->so_options = (u8_t)((pcb)->so_options | (opt))) +/** Resets an IP pcb option (SOF_* flags) */ +#define ip_reset_option(pcb, opt) ((pcb)->so_options = (u8_t)((pcb)->so_options & ~(opt))) + +#if LWIP_IPV4 && LWIP_IPV6 +/** + * @ingroup ip + * Output IP packet, netif is selected by source address + */ +#define ip_output(p, src, dest, ttl, tos, proto) \ + (IP_IS_V6(dest) ? \ + ip6_output(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto) : \ + ip4_output(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto)) +/** + * @ingroup ip + * Output IP packet to specified interface + */ +#define ip_output_if(p, src, dest, ttl, tos, proto, netif) \ + (IP_IS_V6(dest) ? \ + ip6_output_if(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto, netif) : \ + ip4_output_if(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto, netif)) +/** + * @ingroup ip + * Output IP packet to interface specifying source address + */ +#define ip_output_if_src(p, src, dest, ttl, tos, proto, netif) \ + (IP_IS_V6(dest) ? \ + ip6_output_if_src(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto, netif) : \ + ip4_output_if_src(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto, netif)) +/** Output IP packet that already includes an IP header. */ +#define ip_output_if_hdrincl(p, src, dest, netif) \ + (IP_IS_V6(dest) ? \ + ip6_output_if(p, ip_2_ip6(src), LWIP_IP_HDRINCL, 0, 0, 0, netif) : \ + ip4_output_if(p, ip_2_ip4(src), LWIP_IP_HDRINCL, 0, 0, 0, netif)) +/** Output IP packet with netif_hint */ +#define ip_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) \ + (IP_IS_V6(dest) ? \ + ip6_output_hinted(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto, netif_hint) : \ + ip4_output_hinted(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto, netif_hint)) +/** + * @ingroup ip + * Get netif for address combination. See \ref ip6_route and \ref ip4_route + */ +#define ip_route(src, dest) \ + (IP_IS_V6(dest) ? \ + ip6_route(ip_2_ip6(src), ip_2_ip6(dest)) : \ + ip4_route_src(ip_2_ip4(src), ip_2_ip4(dest))) +/** + * @ingroup ip + * Get netif for IP. + */ +#define ip_netif_get_local_ip(netif, dest) (IP_IS_V6(dest) ? \ + ip6_netif_get_local_ip(netif, ip_2_ip6(dest)) : \ + ip4_netif_get_local_ip(netif)) +#define ip_debug_print(is_ipv6, p) ((is_ipv6) ? ip6_debug_print(p) : ip4_debug_print(p)) + +err_t ip_input(struct pbuf *p, struct netif *inp); + +#elif LWIP_IPV4 /* LWIP_IPV4 && LWIP_IPV6 */ + +#define ip_output(p, src, dest, ttl, tos, proto) \ + ip4_output(p, src, dest, ttl, tos, proto) +#define ip_output_if(p, src, dest, ttl, tos, proto, netif) \ + ip4_output_if(p, src, dest, ttl, tos, proto, netif) +#define ip_output_if_src(p, src, dest, ttl, tos, proto, netif) \ + ip4_output_if_src(p, src, dest, ttl, tos, proto, netif) +#define ip_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) \ + ip4_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) +#define ip_output_if_hdrincl(p, src, dest, netif) \ + ip4_output_if(p, src, LWIP_IP_HDRINCL, 0, 0, 0, netif) +#define ip_route(src, dest) \ + ip4_route_src(src, dest) +#define ip_netif_get_local_ip(netif, dest) \ + ip4_netif_get_local_ip(netif) +#define ip_debug_print(is_ipv6, p) ip4_debug_print(p) + +#define ip_input ip4_input + +#elif LWIP_IPV6 /* LWIP_IPV4 && LWIP_IPV6 */ + +#define ip_output(p, src, dest, ttl, tos, proto) \ + ip6_output(p, src, dest, ttl, tos, proto) +#define ip_output_if(p, src, dest, ttl, tos, proto, netif) \ + ip6_output_if(p, src, dest, ttl, tos, proto, netif) +#define ip_output_if_src(p, src, dest, ttl, tos, proto, netif) \ + ip6_output_if_src(p, src, dest, ttl, tos, proto, netif) +#define ip_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) \ + ip6_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) +#define ip_output_if_hdrincl(p, src, dest, netif) \ + ip6_output_if(p, src, LWIP_IP_HDRINCL, 0, 0, 0, netif) +#define ip_route(src, dest) \ + ip6_route(src, dest) +#define ip_netif_get_local_ip(netif, dest) \ + ip6_netif_get_local_ip(netif, dest) +#define ip_debug_print(is_ipv6, p) ip6_debug_print(p) + +#define ip_input ip6_input + +#endif /* LWIP_IPV6 */ + +#define ip_route_get_local_ip(src, dest, netif, ipaddr) do { \ + (netif) = ip_route(src, dest); \ + (ipaddr) = ip_netif_get_local_ip(netif, dest); \ +}while(0) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_IP_H */ diff --git a/middleware/lwip/src/include/lwip/ip4.h b/middleware/lwip/src/include/lwip/ip4.h new file mode 100644 index 0000000..4d7228d --- /dev/null +++ b/middleware/lwip/src/include/lwip/ip4.h @@ -0,0 +1,109 @@ +/** + * @file + * IPv4 API + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_IP4_H +#define LWIP_HDR_IP4_H + +#include "lwip/opt.h" + +#if LWIP_IPV4 + +#include "lwip/def.h" +#include "lwip/pbuf.h" +#include "lwip/ip4_addr.h" +#include "lwip/err.h" +#include "lwip/netif.h" +#include "lwip/prot/ip4.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef LWIP_HOOK_IP4_ROUTE_SRC +#define LWIP_IPV4_SRC_ROUTING 1 +#else +#define LWIP_IPV4_SRC_ROUTING 0 +#endif + +/** Currently, the function ip_output_if_opt() is only used with IGMP */ +#define IP_OPTIONS_SEND (LWIP_IPV4 && LWIP_IGMP) + +#define ip_init() /* Compatibility define, no init needed. */ +struct netif *ip4_route(const ip4_addr_t *dest); +#if LWIP_IPV4_SRC_ROUTING +struct netif *ip4_route_src(const ip4_addr_t *src, const ip4_addr_t *dest); +#else /* LWIP_IPV4_SRC_ROUTING */ +#define ip4_route_src(src, dest) ip4_route(dest) +#endif /* LWIP_IPV4_SRC_ROUTING */ +err_t ip4_input(struct pbuf *p, struct netif *inp); +err_t ip4_output(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, u8_t proto); +err_t ip4_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, u8_t proto, struct netif *netif); +err_t ip4_output_if_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, u8_t proto, struct netif *netif); +#if LWIP_NETIF_USE_HINTS +err_t ip4_output_hinted(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, u8_t proto, struct netif_hint *netif_hint); +#endif /* LWIP_NETIF_USE_HINTS */ +#if IP_OPTIONS_SEND +err_t ip4_output_if_opt(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options, + u16_t optlen); +err_t ip4_output_if_opt_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, + u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options, + u16_t optlen); +#endif /* IP_OPTIONS_SEND */ + +#if LWIP_MULTICAST_TX_OPTIONS +void ip4_set_default_multicast_netif(struct netif* default_multicast_netif); +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + +#define ip4_netif_get_local_ip(netif) (((netif) != NULL) ? netif_ip_addr4(netif) : NULL) + +#if IP_DEBUG +void ip4_debug_print(struct pbuf *p); +#else +#define ip4_debug_print(p) +#endif /* IP_DEBUG */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV4 */ + +#endif /* LWIP_HDR_IP_H */ diff --git a/middleware/lwip/src/include/lwip/ip4_addr.h b/middleware/lwip/src/include/lwip/ip4_addr.h new file mode 100644 index 0000000..a0ebbea --- /dev/null +++ b/middleware/lwip/src/include/lwip/ip4_addr.h @@ -0,0 +1,225 @@ +/** + * @file + * IPv4 address API + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_IP4_ADDR_H +#define LWIP_HDR_IP4_ADDR_H + +#include "lwip/opt.h" +#include "lwip/def.h" + +#if LWIP_IPV4 + +#ifdef __cplusplus +extern "C" { +#endif + +/** This is the aligned version of ip4_addr_t, + used as local variable, on the stack, etc. */ +struct ip4_addr { + u32_t addr; +}; + +/** ip4_addr_t uses a struct for convenience only, so that the same defines can + * operate both on ip4_addr_t as well as on ip4_addr_p_t. */ +typedef struct ip4_addr ip4_addr_t; + +/* Forward declaration to not include netif.h */ +struct netif; + +/** 255.255.255.255 */ +#define IPADDR_NONE ((u32_t)0xffffffffUL) +/** 127.0.0.1 */ +#define IPADDR_LOOPBACK ((u32_t)0x7f000001UL) +/** 0.0.0.0 */ +#define IPADDR_ANY ((u32_t)0x00000000UL) +/** 255.255.255.255 */ +#define IPADDR_BROADCAST ((u32_t)0xffffffffUL) + +/* Definitions of the bits in an Internet address integer. + + On subnets, host and network parts are found according to + the subnet mask, not these masks. */ +#define IP_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0) +#define IP_CLASSA_NET 0xff000000 +#define IP_CLASSA_NSHIFT 24 +#define IP_CLASSA_HOST (0xffffffff & ~IP_CLASSA_NET) +#define IP_CLASSA_MAX 128 + +#define IP_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL) +#define IP_CLASSB_NET 0xffff0000 +#define IP_CLASSB_NSHIFT 16 +#define IP_CLASSB_HOST (0xffffffff & ~IP_CLASSB_NET) +#define IP_CLASSB_MAX 65536 + +#define IP_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL) +#define IP_CLASSC_NET 0xffffff00 +#define IP_CLASSC_NSHIFT 8 +#define IP_CLASSC_HOST (0xffffffff & ~IP_CLASSC_NET) + +#define IP_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL) +#define IP_CLASSD_NET 0xf0000000 /* These ones aren't really */ +#define IP_CLASSD_NSHIFT 28 /* net and host fields, but */ +#define IP_CLASSD_HOST 0x0fffffff /* routing needn't know. */ +#define IP_MULTICAST(a) IP_CLASSD(a) + +#define IP_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL) +#define IP_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL) + +#define IP_LOOPBACKNET 127 /* official! */ + +/** Set an IP address given by the four byte-parts */ +#define IP4_ADDR(ipaddr, a,b,c,d) (ipaddr)->addr = PP_HTONL(LWIP_MAKEU32(a,b,c,d)) + +/** Copy IP address - faster than ip4_addr_set: no NULL check */ +#define ip4_addr_copy(dest, src) ((dest).addr = (src).addr) +/** Safely copy one IP address to another (src may be NULL) */ +#define ip4_addr_set(dest, src) ((dest)->addr = \ + ((src) == NULL ? 0 : \ + (src)->addr)) +/** Set complete address to zero */ +#define ip4_addr_set_zero(ipaddr) ((ipaddr)->addr = 0) +/** Set address to IPADDR_ANY (no need for lwip_htonl()) */ +#define ip4_addr_set_any(ipaddr) ((ipaddr)->addr = IPADDR_ANY) +/** Set address to loopback address */ +#define ip4_addr_set_loopback(ipaddr) ((ipaddr)->addr = PP_HTONL(IPADDR_LOOPBACK)) +/** Check if an address is in the loopback region */ +#define ip4_addr_isloopback(ipaddr) (((ipaddr)->addr & PP_HTONL(IP_CLASSA_NET)) == PP_HTONL(((u32_t)IP_LOOPBACKNET) << 24)) +/** Safely copy one IP address to another and change byte order + * from host- to network-order. */ +#define ip4_addr_set_hton(dest, src) ((dest)->addr = \ + ((src) == NULL ? 0:\ + lwip_htonl((src)->addr))) +/** IPv4 only: set the IP address given as an u32_t */ +#define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32)) +/** IPv4 only: get the IP address as an u32_t */ +#define ip4_addr_get_u32(src_ipaddr) ((src_ipaddr)->addr) + +/** Get the network address by combining host address with netmask */ +#define ip4_addr_get_network(target, host, netmask) do { ((target)->addr = ((host)->addr) & ((netmask)->addr)); } while(0) + +/** + * Determine if two address are on the same network. + * @deprecated Renamed to @ref ip4_addr_net_eq + */ +#define ip4_addr_netcmp(addr1, addr2, mask) ip4_addr_net_eq(addr1, addr2, mask) +/** + * Determine if two address are on the same network. + * + * @arg addr1 IP address 1 + * @arg addr2 IP address 2 + * @arg mask network identifier mask + * @return !0 if the network identifiers of both address match + */ +#define ip4_addr_net_eq(addr1, addr2, mask) (((addr1)->addr & \ + (mask)->addr) == \ + ((addr2)->addr & \ + (mask)->addr)) +/** + * @deprecated Renamed to ip4_addr_eq + */ +#define ip4_addr_cmp(addr1, addr2) ip4_addr_eq(addr1, addr2) +#define ip4_addr_eq(addr1, addr2) ((addr1)->addr == (addr2)->addr) + +#define ip4_addr_isany_val(addr1) ((addr1).addr == IPADDR_ANY) +#define ip4_addr_isany(addr1) ((addr1) == NULL || ip4_addr_isany_val(*(addr1))) + +#define ip4_addr_isbroadcast(addr1, netif) ip4_addr_isbroadcast_u32((addr1)->addr, netif) +u8_t ip4_addr_isbroadcast_u32(u32_t addr, const struct netif *netif); + +#define ip_addr_netmask_valid(netmask) ip4_addr_netmask_valid((netmask)->addr) +u8_t ip4_addr_netmask_valid(u32_t netmask); + +#define ip4_addr_ismulticast(addr1) (((addr1)->addr & PP_HTONL(0xf0000000UL)) == PP_HTONL(0xe0000000UL)) + +#define ip4_addr_islinklocal(addr1) (((addr1)->addr & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xa9fe0000UL)) + +#define ip4_addr_debug_print_parts(debug, a, b, c, d) \ + LWIP_DEBUGF(debug, ("%" U16_F ".%" U16_F ".%" U16_F ".%" U16_F, a, b, c, d)) +#define ip4_addr_debug_print(debug, ipaddr) \ + ip4_addr_debug_print_parts(debug, \ + (u16_t)(((void *)ipaddr) != NULL ? ip4_addr1_16(ipaddr) : 0), \ + (u16_t)(((void *)ipaddr) != NULL ? ip4_addr2_16(ipaddr) : 0), \ + (u16_t)(((void *)ipaddr) != NULL ? ip4_addr3_16(ipaddr) : 0), \ + (u16_t)(((void *)ipaddr) != NULL ? ip4_addr4_16(ipaddr) : 0)) +#define ip4_addr_debug_print_val(debug, ipaddr) \ + ip4_addr_debug_print_parts(debug, \ + ip4_addr1_16_val(ipaddr), \ + ip4_addr2_16_val(ipaddr), \ + ip4_addr3_16_val(ipaddr), \ + ip4_addr4_16_val(ipaddr)) + +/* Get one byte from the 4-byte address */ +#define ip4_addr_get_byte(ipaddr, idx) (((const u8_t*)(&(ipaddr)->addr))[idx]) +#define ip4_addr1(ipaddr) ip4_addr_get_byte(ipaddr, 0) +#define ip4_addr2(ipaddr) ip4_addr_get_byte(ipaddr, 1) +#define ip4_addr3(ipaddr) ip4_addr_get_byte(ipaddr, 2) +#define ip4_addr4(ipaddr) ip4_addr_get_byte(ipaddr, 3) +/* Get one byte from the 4-byte address, but argument is 'ip4_addr_t', + * not a pointer */ +#define ip4_addr_get_byte_val(ipaddr, idx) ((u8_t)(((ipaddr).addr >> (idx * 8)) & 0xff)) +#define ip4_addr1_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 0) +#define ip4_addr2_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 1) +#define ip4_addr3_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 2) +#define ip4_addr4_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 3) +/* These are cast to u16_t, with the intent that they are often arguments + * to printf using the U16_F format from cc.h. */ +#define ip4_addr1_16(ipaddr) ((u16_t)ip4_addr1(ipaddr)) +#define ip4_addr2_16(ipaddr) ((u16_t)ip4_addr2(ipaddr)) +#define ip4_addr3_16(ipaddr) ((u16_t)ip4_addr3(ipaddr)) +#define ip4_addr4_16(ipaddr) ((u16_t)ip4_addr4(ipaddr)) +#define ip4_addr1_16_val(ipaddr) ((u16_t)ip4_addr1_val(ipaddr)) +#define ip4_addr2_16_val(ipaddr) ((u16_t)ip4_addr2_val(ipaddr)) +#define ip4_addr3_16_val(ipaddr) ((u16_t)ip4_addr3_val(ipaddr)) +#define ip4_addr4_16_val(ipaddr) ((u16_t)ip4_addr4_val(ipaddr)) + +#define IP4ADDR_STRLEN_MAX 16 + +/** For backwards compatibility */ +#define ip_ntoa(ipaddr) ipaddr_ntoa(ipaddr) + +u32_t ipaddr_addr(const char *cp); +int ip4addr_aton(const char *cp, ip4_addr_t *addr); +/** returns ptr to static buffer; not reentrant! */ +char *ip4addr_ntoa(const ip4_addr_t *addr); +char *ip4addr_ntoa_r(const ip4_addr_t *addr, char *buf, int buflen); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV4 */ + +#endif /* LWIP_HDR_IP_ADDR_H */ diff --git a/middleware/lwip/src/include/lwip/ip4_frag.h b/middleware/lwip/src/include/lwip/ip4_frag.h new file mode 100644 index 0000000..ed5bf14 --- /dev/null +++ b/middleware/lwip/src/include/lwip/ip4_frag.h @@ -0,0 +1,100 @@ +/** + * @file + * IP fragmentation/reassembly + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Jani Monoses + * + */ + +#ifndef LWIP_HDR_IP4_FRAG_H +#define LWIP_HDR_IP4_FRAG_H + +#include "lwip/opt.h" +#include "lwip/err.h" +#include "lwip/pbuf.h" +#include "lwip/netif.h" +#include "lwip/ip_addr.h" +#include "lwip/ip.h" + +#if LWIP_IPV4 + +#ifdef __cplusplus +extern "C" { +#endif + +#if IP_REASSEMBLY +/* The IP reassembly timer interval in milliseconds. */ +#define IP_TMR_INTERVAL 1000 + +/** IP reassembly helper struct. + * This is exported because memp needs to know the size. + */ +struct ip_reassdata { + struct ip_reassdata *next; + struct pbuf *p; + struct ip_hdr iphdr; + u16_t datagram_len; + u8_t flags; + u8_t timer; +}; + +void ip_reass_init(void); +void ip_reass_tmr(void); +struct pbuf * ip4_reass(struct pbuf *p); +#endif /* IP_REASSEMBLY */ + +#if IP_FRAG +#if !LWIP_NETIF_TX_SINGLE_PBUF +#ifndef LWIP_PBUF_CUSTOM_REF_DEFINED +#define LWIP_PBUF_CUSTOM_REF_DEFINED +/** A custom pbuf that holds a reference to another pbuf, which is freed + * when this custom pbuf is freed. This is used to create a custom PBUF_REF + * that points into the original pbuf. */ +struct pbuf_custom_ref { + /** 'base class' */ + struct pbuf_custom pc; + /** pointer to the original pbuf that is referenced */ + struct pbuf *original; +}; +#endif /* LWIP_PBUF_CUSTOM_REF_DEFINED */ +#endif /* !LWIP_NETIF_TX_SINGLE_PBUF */ + +err_t ip4_frag(struct pbuf *p, struct netif *netif, const ip4_addr_t *dest); +#endif /* IP_FRAG */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV4 */ + +#endif /* LWIP_HDR_IP4_FRAG_H */ diff --git a/middleware/lwip/src/include/lwip/ip6.h b/middleware/lwip/src/include/lwip/ip6.h new file mode 100644 index 0000000..f894e06 --- /dev/null +++ b/middleware/lwip/src/include/lwip/ip6.h @@ -0,0 +1,93 @@ +/** + * @file + * + * IPv6 layer. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ +#ifndef LWIP_HDR_IP6_H +#define LWIP_HDR_IP6_H + +#include "lwip/opt.h" + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/ip6_addr.h" +#include "lwip/prot/ip6.h" +#include "lwip/def.h" +#include "lwip/pbuf.h" +#include "lwip/netif.h" + +#include "lwip/err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct netif *ip6_route(const ip6_addr_t *src, const ip6_addr_t *dest); +const ip_addr_t *ip6_select_source_address(struct netif *netif, const ip6_addr_t * dest); +err_t ip6_input(struct pbuf *p, struct netif *inp); +err_t ip6_output(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, + u8_t hl, u8_t tc, u8_t nexth); +err_t ip6_output_if(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, + u8_t hl, u8_t tc, u8_t nexth, struct netif *netif); +err_t ip6_output_if_src(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, + u8_t hl, u8_t tc, u8_t nexth, struct netif *netif); +#if LWIP_NETIF_USE_HINTS +err_t ip6_output_hinted(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, + u8_t hl, u8_t tc, u8_t nexth, struct netif_hint *netif_hint); +#endif /* LWIP_NETIF_USE_HINTS */ +#if LWIP_IPV6_MLD +err_t ip6_options_add_hbh_ra(struct pbuf * p, u8_t nexth, u8_t value); +#endif /* LWIP_IPV6_MLD */ + +#define ip6_netif_get_local_ip(netif, dest) (((netif) != NULL) ? \ + ip6_select_source_address(netif, dest) : NULL) + +#if IP6_DEBUG +void ip6_debug_print(struct pbuf *p); +#else +#define ip6_debug_print(p) +#endif /* IP6_DEBUG */ + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6 */ + +#endif /* LWIP_HDR_IP6_H */ diff --git a/middleware/lwip/src/include/lwip/ip6_addr.h b/middleware/lwip/src/include/lwip/ip6_addr.h new file mode 100644 index 0000000..b077e6e --- /dev/null +++ b/middleware/lwip/src/include/lwip/ip6_addr.h @@ -0,0 +1,372 @@ +/** + * @file + * + * IPv6 addresses. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * Structs and macros for handling IPv6 addresses. + * + * Please coordinate changes and requests with Ivan Delamer + * + */ +#ifndef LWIP_HDR_IP6_ADDR_H +#define LWIP_HDR_IP6_ADDR_H + +#include "lwip/opt.h" +#include "def.h" + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/ip6_zone.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +/** This is the aligned version of ip6_addr_t, + used as local variable, on the stack, etc. */ +struct ip6_addr { + u32_t addr[4]; +#if LWIP_IPV6_SCOPES + u8_t zone; +#endif /* LWIP_IPV6_SCOPES */ +}; + +/** IPv6 address */ +typedef struct ip6_addr ip6_addr_t; + +/** Set an IPv6 partial address given by byte-parts */ +#define IP6_ADDR_PART(ip6addr, index, a,b,c,d) \ + (ip6addr)->addr[index] = PP_HTONL(LWIP_MAKEU32(a,b,c,d)) + +/** Set a full IPv6 address by passing the 4 u32_t indices in network byte order + (use PP_HTONL() for constants) */ +#define IP6_ADDR(ip6addr, idx0, idx1, idx2, idx3) do { \ + (ip6addr)->addr[0] = idx0; \ + (ip6addr)->addr[1] = idx1; \ + (ip6addr)->addr[2] = idx2; \ + (ip6addr)->addr[3] = idx3; \ + ip6_addr_clear_zone(ip6addr); } while(0) + +/** Access address in 16-bit block */ +#define IP6_ADDR_BLOCK1(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xffff)) +/** Access address in 16-bit block */ +#define IP6_ADDR_BLOCK2(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0])) & 0xffff)) +/** Access address in 16-bit block */ +#define IP6_ADDR_BLOCK3(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1]) >> 16) & 0xffff)) +/** Access address in 16-bit block */ +#define IP6_ADDR_BLOCK4(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1])) & 0xffff)) +/** Access address in 16-bit block */ +#define IP6_ADDR_BLOCK5(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2]) >> 16) & 0xffff)) +/** Access address in 16-bit block */ +#define IP6_ADDR_BLOCK6(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2])) & 0xffff)) +/** Access address in 16-bit block */ +#define IP6_ADDR_BLOCK7(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3]) >> 16) & 0xffff)) +/** Access address in 16-bit block */ +#define IP6_ADDR_BLOCK8(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3])) & 0xffff)) + +/** Copy IPv6 address - faster than ip6_addr_set: no NULL check */ +#define ip6_addr_copy(dest, src) do{(dest).addr[0] = (src).addr[0]; \ + (dest).addr[1] = (src).addr[1]; \ + (dest).addr[2] = (src).addr[2]; \ + (dest).addr[3] = (src).addr[3]; \ + ip6_addr_copy_zone((dest), (src)); }while(0) +/** Safely copy one IPv6 address to another (src may be NULL) */ +#define ip6_addr_set(dest, src) do{(dest)->addr[0] = ((void *)src) == NULL ? 0 : (src)->addr[0]; \ + (dest)->addr[1] = ((void *)src) == NULL ? 0 : (src)->addr[1]; \ + (dest)->addr[2] = ((void *)src) == NULL ? 0 : (src)->addr[2]; \ + (dest)->addr[3] = ((void *)src) == NULL ? 0 : (src)->addr[3]; \ + ip6_addr_set_zone((dest), ((void *)src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src)); }while(0) + +/** Copy packed IPv6 address to unpacked IPv6 address; zone is not set */ +#define ip6_addr_copy_from_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \ + (dest).addr[1] = (src).addr[1]; \ + (dest).addr[2] = (src).addr[2]; \ + (dest).addr[3] = (src).addr[3]; \ + ip6_addr_clear_zone(&dest); }while(0) + +/** Copy unpacked IPv6 address to packed IPv6 address; zone is lost */ +#define ip6_addr_copy_to_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \ + (dest).addr[1] = (src).addr[1]; \ + (dest).addr[2] = (src).addr[2]; \ + (dest).addr[3] = (src).addr[3]; }while(0) + +/** Set complete address to zero */ +#define ip6_addr_set_zero(ip6addr) do{(ip6addr)->addr[0] = 0; \ + (ip6addr)->addr[1] = 0; \ + (ip6addr)->addr[2] = 0; \ + (ip6addr)->addr[3] = 0; \ + ip6_addr_clear_zone(ip6addr);}while(0) + +/** Set address to ipv6 'any' (no need for lwip_htonl()) */ +#define ip6_addr_set_any(ip6addr) ip6_addr_set_zero(ip6addr) +/** Set address to ipv6 loopback address */ +#define ip6_addr_set_loopback(ip6addr) do{(ip6addr)->addr[0] = 0; \ + (ip6addr)->addr[1] = 0; \ + (ip6addr)->addr[2] = 0; \ + (ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \ + ip6_addr_clear_zone(ip6addr);}while(0) +/** Safely copy one IPv6 address to another and change byte order + * from host- to network-order. */ +#define ip6_addr_set_hton(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : lwip_htonl((src)->addr[0]); \ + (dest)->addr[1] = (src) == NULL ? 0 : lwip_htonl((src)->addr[1]); \ + (dest)->addr[2] = (src) == NULL ? 0 : lwip_htonl((src)->addr[2]); \ + (dest)->addr[3] = (src) == NULL ? 0 : lwip_htonl((src)->addr[3]); \ + ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src));}while(0) + + +/** @deprecated Renamed to @ref ip6_addr_net_zoneless_eq */ +#define ip6_addr_netcmp_zoneless(addr1, addr2) ip6_addr_net_zoneless_eq(addr1, addr2) +/** Compare IPv6 networks, ignoring zone information. To be used sparingly! */ +#define ip6_addr_net_zoneless_eq(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \ + ((addr1)->addr[1] == (addr2)->addr[1])) + +/** + * Determine if two IPv6 address are on the same network. + * @deprecated Renamed to @ref ip6_addr_net_eq + */ +#define ip6_addr_netcmp(addr1, addr2) ip6_addr_net_eq(addr1, addr2) +/** + * Determine if two IPv6 address are on the same network. + * + * @param addr1 IPv6 address 1 + * @param addr2 IPv6 address 2 + * @return 1 if the network identifiers of both address match, 0 if not + */ +#define ip6_addr_net_eq(addr1, addr2) (ip6_addr_net_zoneless_eq((addr1), (addr2)) && \ + ip6_addr_zone_eq((addr1), (addr2))) + +#define ip6_addr_nethostcmp(addr1, addr2) ip6_addr_nethost_eq(addr1, addr2) +/* Exact-host comparison *after* ip6_addr_net_eq() succeeded, for efficiency. */ +#define ip6_addr_nethost_eq(addr1, addr2) (((addr1)->addr[2] == (addr2)->addr[2]) && \ + ((addr1)->addr[3] == (addr2)->addr[3])) + +/** @deprecated Renamed to @ref ip6_addr_zoneless_eq */ +#define ip6_addr_cmp_zoneless(addr1, addr2) ip6_addr_zoneless_eq(addr1, addr2) +/** Compare IPv6 addresses, ignoring zone information. To be used sparingly! */ +#define ip6_addr_zoneless_eq(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \ + ((addr1)->addr[1] == (addr2)->addr[1]) && \ + ((addr1)->addr[2] == (addr2)->addr[2]) && \ + ((addr1)->addr[3] == (addr2)->addr[3])) +/** @deprecated Renamed to @ref ip6_addr_eq */ +#define ip6_addr_cmp(addr1, addr2) ip6_addr_eq(addr1, addr2) +/** + * Determine if two IPv6 addresses are the same. In particular, the address + * part of both must be the same, and the zone must be compatible. + * + * @param addr1 IPv6 address 1 + * @param addr2 IPv6 address 2 + * @return 1 if the addresses are considered equal, 0 if not + */ +#define ip6_addr_eq(addr1, addr2) (ip6_addr_zoneless_eq((addr1), (addr2)) && \ + ip6_addr_zone_eq((addr1), (addr2))) + +/** @deprecated Renamed to @ref ip6_addr_packed_eq */ +#define ip6_addr_cmp_packed(ip6addr, paddr, zone_idx) ip6_addr_packed_eq(ip6addr, paddr, zone_idx) +/** Compare IPv6 address to packed address and zone */ +#define ip6_addr_packed_eq(ip6addr, paddr, zone_idx) (((ip6addr)->addr[0] == (paddr)->addr[0]) && \ + ((ip6addr)->addr[1] == (paddr)->addr[1]) && \ + ((ip6addr)->addr[2] == (paddr)->addr[2]) && \ + ((ip6addr)->addr[3] == (paddr)->addr[3]) && \ + ip6_addr_equals_zone((ip6addr), (zone_idx))) + +#define ip6_get_subnet_id(ip6addr) (lwip_htonl((ip6addr)->addr[2]) & 0x0000ffffUL) + +#define ip6_addr_isany_val(ip6addr) (((ip6addr).addr[0] == 0) && \ + ((ip6addr).addr[1] == 0) && \ + ((ip6addr).addr[2] == 0) && \ + ((ip6addr).addr[3] == 0)) +#define ip6_addr_isany(ip6addr) (((ip6addr) == NULL) || ip6_addr_isany_val(*(ip6addr))) + +#define ip6_addr_isloopback(ip6addr) (((ip6addr)->addr[0] == 0UL) && \ + ((ip6addr)->addr[1] == 0UL) && \ + ((ip6addr)->addr[2] == 0UL) && \ + ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL))) + +#define ip6_addr_isglobal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xe0000000UL)) == PP_HTONL(0x20000000UL)) + +#define ip6_addr_islinklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfe800000UL)) + +#define ip6_addr_issitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfec00000UL)) + +#define ip6_addr_isuniquelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xfe000000UL)) == PP_HTONL(0xfc000000UL)) + +#define ip6_addr_isipv4mappedipv6(ip6addr) (((ip6addr)->addr[0] == 0) && ((ip6addr)->addr[1] == 0) && (((ip6addr)->addr[2]) == PP_HTONL(0x0000FFFFUL))) + +#define ip6_addr_isipv4compat(ip6addr) (((ip6addr)->addr[0] == 0UL) && \ + ((ip6addr)->addr[1] == 0UL) && \ + ((ip6addr)->addr[2] == 0UL) && \ + (htonl((ip6addr)->addr[3]) > 1)) + +#define ip6_addr_ismulticast(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL)) +#define ip6_addr_multicast_transient_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00100000UL)) +#define ip6_addr_multicast_prefix_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00200000UL)) +#define ip6_addr_multicast_rendezvous_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00400000UL)) +#define ip6_addr_multicast_scope(ip6addr) ((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xf) +#define IP6_MULTICAST_SCOPE_RESERVED 0x0 +#define IP6_MULTICAST_SCOPE_RESERVED0 0x0 +#define IP6_MULTICAST_SCOPE_INTERFACE_LOCAL 0x1 +#define IP6_MULTICAST_SCOPE_LINK_LOCAL 0x2 +#define IP6_MULTICAST_SCOPE_RESERVED3 0x3 +#define IP6_MULTICAST_SCOPE_ADMIN_LOCAL 0x4 +#define IP6_MULTICAST_SCOPE_SITE_LOCAL 0x5 +#define IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL 0x8 +#define IP6_MULTICAST_SCOPE_GLOBAL 0xe +#define IP6_MULTICAST_SCOPE_RESERVEDF 0xf +#define ip6_addr_ismulticast_iflocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff010000UL)) +#define ip6_addr_ismulticast_linklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff020000UL)) +#define ip6_addr_ismulticast_adminlocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff040000UL)) +#define ip6_addr_ismulticast_sitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff050000UL)) +#define ip6_addr_ismulticast_orglocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff080000UL)) +#define ip6_addr_ismulticast_global(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff0e0000UL)) + +/* Scoping note: while interface-local and link-local multicast addresses do + * have a scope (i.e., they are meaningful only in the context of a particular + * interface), the following functions are not assigning or comparing zone + * indices. The reason for this is backward compatibility. Any call site that + * produces a non-global multicast address must assign a multicast address as + * appropriate itself. */ + +#define ip6_addr_isallnodes_iflocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff010000UL)) && \ + ((ip6addr)->addr[1] == 0UL) && \ + ((ip6addr)->addr[2] == 0UL) && \ + ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL))) + +#define ip6_addr_isallnodes_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \ + ((ip6addr)->addr[1] == 0UL) && \ + ((ip6addr)->addr[2] == 0UL) && \ + ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL))) +#define ip6_addr_set_allnodes_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \ + (ip6addr)->addr[1] = 0; \ + (ip6addr)->addr[2] = 0; \ + (ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \ + ip6_addr_clear_zone(ip6addr); }while(0) + +#define ip6_addr_isallrouters_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \ + ((ip6addr)->addr[1] == 0UL) && \ + ((ip6addr)->addr[2] == 0UL) && \ + ((ip6addr)->addr[3] == PP_HTONL(0x00000002UL))) +#define ip6_addr_set_allrouters_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \ + (ip6addr)->addr[1] = 0; \ + (ip6addr)->addr[2] = 0; \ + (ip6addr)->addr[3] = PP_HTONL(0x00000002UL); \ + ip6_addr_clear_zone(ip6addr); }while(0) + +#define ip6_addr_issolicitednode(ip6addr) ( ((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \ + ((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \ + (((ip6addr)->addr[3] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL)) ) + +#define ip6_addr_set_solicitednode(ip6addr, if_id) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \ + (ip6addr)->addr[1] = 0; \ + (ip6addr)->addr[2] = PP_HTONL(0x00000001UL); \ + (ip6addr)->addr[3] = (PP_HTONL(0xff000000UL) | (if_id)); \ + ip6_addr_clear_zone(ip6addr); }while(0) + +#define ip6_addr_cmp_solicitednode(ip6addr, sn_addr) ip6_addr_solicitednode_eq(ip6addr, sn_addr) +#define ip6_addr_solicitednode_eq(ip6addr, sn_addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \ + ((ip6addr)->addr[1] == 0) && \ + ((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \ + ((ip6addr)->addr[3] == (PP_HTONL(0xff000000UL) | (sn_addr)->addr[3]))) + +/* IPv6 address states. */ +#define IP6_ADDR_INVALID 0x00 +#define IP6_ADDR_TENTATIVE 0x08 +#define IP6_ADDR_TENTATIVE_1 0x09 /* 1 probe sent */ +#define IP6_ADDR_TENTATIVE_2 0x0a /* 2 probes sent */ +#define IP6_ADDR_TENTATIVE_3 0x0b /* 3 probes sent */ +#define IP6_ADDR_TENTATIVE_4 0x0c /* 4 probes sent */ +#define IP6_ADDR_TENTATIVE_5 0x0d /* 5 probes sent */ +#define IP6_ADDR_TENTATIVE_6 0x0e /* 6 probes sent */ +#define IP6_ADDR_TENTATIVE_7 0x0f /* 7 probes sent */ +#define IP6_ADDR_VALID 0x10 /* This bit marks an address as valid (preferred or deprecated) */ +#define IP6_ADDR_PREFERRED 0x30 +#define IP6_ADDR_DEPRECATED 0x10 /* Same as VALID (valid but not preferred) */ +#define IP6_ADDR_DUPLICATED 0x40 /* Failed DAD test, not valid */ + +#define IP6_ADDR_TENTATIVE_COUNT_MASK 0x07 /* 1-7 probes sent */ + +#define ip6_addr_isinvalid(addr_state) (addr_state == IP6_ADDR_INVALID) +#define ip6_addr_istentative(addr_state) (addr_state & IP6_ADDR_TENTATIVE) +#define ip6_addr_isvalid(addr_state) (addr_state & IP6_ADDR_VALID) /* Include valid, preferred, and deprecated. */ +#define ip6_addr_ispreferred(addr_state) (addr_state == IP6_ADDR_PREFERRED) +#define ip6_addr_isdeprecated(addr_state) (addr_state == IP6_ADDR_DEPRECATED) +#define ip6_addr_isduplicated(addr_state) (addr_state == IP6_ADDR_DUPLICATED) + +#if LWIP_IPV6_ADDRESS_LIFETIMES +#define IP6_ADDR_LIFE_STATIC (0) +#define IP6_ADDR_LIFE_INFINITE (0xffffffffUL) +#define ip6_addr_life_isstatic(addr_life) ((addr_life) == IP6_ADDR_LIFE_STATIC) +#define ip6_addr_life_isinfinite(addr_life) ((addr_life) == IP6_ADDR_LIFE_INFINITE) +#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */ + +#define ip6_addr_debug_print_parts(debug, a, b, c, d, e, f, g, h) \ + LWIP_DEBUGF(debug, ("%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F, \ + a, b, c, d, e, f, g, h)) +#define ip6_addr_debug_print(debug, ipaddr) \ + ip6_addr_debug_print_parts(debug, \ + (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK1(ipaddr) : 0), \ + (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK2(ipaddr) : 0), \ + (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK3(ipaddr) : 0), \ + (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK4(ipaddr) : 0), \ + (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK5(ipaddr) : 0), \ + (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK6(ipaddr) : 0), \ + (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK7(ipaddr) : 0), \ + (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK8(ipaddr) : 0)) +#define ip6_addr_debug_print_val(debug, ipaddr) \ + ip6_addr_debug_print_parts(debug, \ + IP6_ADDR_BLOCK1(&(ipaddr)), \ + IP6_ADDR_BLOCK2(&(ipaddr)), \ + IP6_ADDR_BLOCK3(&(ipaddr)), \ + IP6_ADDR_BLOCK4(&(ipaddr)), \ + IP6_ADDR_BLOCK5(&(ipaddr)), \ + IP6_ADDR_BLOCK6(&(ipaddr)), \ + IP6_ADDR_BLOCK7(&(ipaddr)), \ + IP6_ADDR_BLOCK8(&(ipaddr))) + +#define IP6ADDR_STRLEN_MAX 46 + +int ip6addr_aton(const char *cp, ip6_addr_t *addr); +/** returns ptr to static buffer; not reentrant! */ +char *ip6addr_ntoa(const ip6_addr_t *addr); +char *ip6addr_ntoa_r(const ip6_addr_t *addr, char *buf, int buflen); + + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6 */ + +#endif /* LWIP_HDR_IP6_ADDR_H */ diff --git a/middleware/lwip/src/include/lwip/ip6_frag.h b/middleware/lwip/src/include/lwip/ip6_frag.h new file mode 100644 index 0000000..87e0e86 --- /dev/null +++ b/middleware/lwip/src/include/lwip/ip6_frag.h @@ -0,0 +1,144 @@ +/** + * @file + * + * IPv6 fragmentation and reassembly. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ +#ifndef LWIP_HDR_IP6_FRAG_H +#define LWIP_HDR_IP6_FRAG_H + +#include "lwip/opt.h" +#include "lwip/pbuf.h" +#include "lwip/ip6_addr.h" +#include "lwip/ip6.h" +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +#if LWIP_IPV6 && LWIP_IPV6_REASS /* don't build if not configured for use in lwipopts.h */ + +/** The IPv6 reassembly timer interval in milliseconds. */ +#define IP6_REASS_TMR_INTERVAL 1000 + +/** IP6_FRAG_COPYHEADER==1: for platforms where sizeof(void*) > 4, "struct + * ip6_reass_helper" is too large to be stored in the IPv6 fragment header, and + * will bleed into the header before it, which may be the IPv6 header or an + * extension header. This means that for each first fragment packet, we need to + * 1) make a copy of some IPv6 header fields (src+dest) that we need later on, + * just in case we do overwrite part of the IPv6 header, and 2) make a copy of + * the header data that we overwrote, so that we can restore it before either + * completing reassembly or sending an ICMPv6 reply. The last part is true even + * if this setting is disabled, but if it is enabled, we need to save a bit + * more data (up to the size of a pointer) because we overwrite more. */ +#ifndef IPV6_FRAG_COPYHEADER +#define IPV6_FRAG_COPYHEADER 0 +#endif + +/* With IPV6_FRAG_COPYHEADER==1, a helper structure may (or, depending on the + * presence of extensions, may not) overwrite part of the IP header. Therefore, + * we copy the fields that we need from the IP header for as long as the helper + * structure may still be in place. This is easier than temporarily restoring + * those fields in the IP header each time we need to perform checks on them. */ +#if IPV6_FRAG_COPYHEADER +#define IPV6_FRAG_SRC(ipr) ((ipr)->src) +#define IPV6_FRAG_DEST(ipr) ((ipr)->dest) +#else /* IPV6_FRAG_COPYHEADER */ +#define IPV6_FRAG_SRC(ipr) ((ipr)->iphdr->src) +#define IPV6_FRAG_DEST(ipr) ((ipr)->iphdr->dest) +#endif /* IPV6_FRAG_COPYHEADER */ + +/** IPv6 reassembly helper struct. + * This is exported because memp needs to know the size. + */ +struct ip6_reassdata { + struct ip6_reassdata *next; + struct pbuf *p; + struct ip6_hdr *iphdr; /* pointer to the first (original) IPv6 header */ +#if IPV6_FRAG_COPYHEADER + ip6_addr_p_t src; /* copy of the source address in the IP header */ + ip6_addr_p_t dest; /* copy of the destination address in the IP header */ + /* This buffer (for the part of the original header that we overwrite) will + * be slightly oversized, but we cannot compute the exact size from here. */ + u8_t orig_hdr[sizeof(struct ip6_frag_hdr) + sizeof(void*)]; +#else /* IPV6_FRAG_COPYHEADER */ + /* In this case we still need the buffer, for sending ICMPv6 replies. */ + u8_t orig_hdr[sizeof(struct ip6_frag_hdr)]; +#endif /* IPV6_FRAG_COPYHEADER */ + u32_t identification; + u16_t datagram_len; + u8_t nexth; + u8_t timer; +#if LWIP_IPV6_SCOPES + u8_t src_zone; /* zone of original packet's source address */ + u8_t dest_zone; /* zone of original packet's destination address */ +#endif /* LWIP_IPV6_SCOPES */ +}; + +#define ip6_reass_init() /* Compatibility define */ +void ip6_reass_tmr(void); +struct pbuf *ip6_reass(struct pbuf *p); + +#endif /* LWIP_IPV6 && LWIP_IPV6_REASS */ + +#if LWIP_IPV6 && LWIP_IPV6_FRAG /* don't build if not configured for use in lwipopts.h */ + +#ifndef LWIP_PBUF_CUSTOM_REF_DEFINED +#define LWIP_PBUF_CUSTOM_REF_DEFINED +/** A custom pbuf that holds a reference to another pbuf, which is freed + * when this custom pbuf is freed. This is used to create a custom PBUF_REF + * that points into the original pbuf. */ +struct pbuf_custom_ref { + /** 'base class' */ + struct pbuf_custom pc; + /** pointer to the original pbuf that is referenced */ + struct pbuf *original; +}; +#endif /* LWIP_PBUF_CUSTOM_REF_DEFINED */ + +err_t ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest); + +#endif /* LWIP_IPV6 && LWIP_IPV6_FRAG */ + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_IP6_FRAG_H */ diff --git a/middleware/lwip/src/include/lwip/ip6_zone.h b/middleware/lwip/src/include/lwip/ip6_zone.h new file mode 100644 index 0000000..834c32f --- /dev/null +++ b/middleware/lwip/src/include/lwip/ip6_zone.h @@ -0,0 +1,306 @@ +/** + * @file + * + * IPv6 address scopes, zones, and scoping policy. + * + * This header provides the means to implement support for IPv6 address scopes, + * as per RFC 4007. An address scope can be either global or more constrained. + * In lwIP, we say that an address "has a scope" or "is scoped" when its scope + * is constrained, in which case the address is meaningful only in a specific + * "zone." For unicast addresses, only link-local addresses have a scope; in + * that case, the scope is the link. For multicast addresses, there are various + * scopes defined by RFC 4007 and others. For any constrained scope, a system + * must establish a (potentially one-to-many) mapping between zones and local + * interfaces. For example, a link-local address is valid on only one link (its + * zone). That link may be attached to one or more local interfaces. The + * decisions on which scopes are constrained and the mapping between zones and + * interfaces is together what we refer to as the "scoping policy" - more on + * this in a bit. + * + * In lwIP, each IPv6 address has an associated zone index. This zone index may + * be set to "no zone" (IP6_NO_ZONE, 0) or an actual zone. We say that an + * address "has a zone" or "is zoned" when its zone index is *not* set to "no + * zone." In lwIP, in principle, each address should be "properly zoned," which + * means that if the address has a zone if and only if has a scope. As such, it + * is a rule that an unscoped (e.g., global) address must never have a zone. + * Even though one could argue that there is always one zone even for global + * scopes, this rule exists for implementation simplicity. Violation of the + * rule will trigger assertions or otherwise result in undesired behavior. + * + * Backward compatibility prevents us from requiring that applications always + * provide properly zoned addresses. We do enforce the rule that the in the + * lwIP link layer (everything below netif->output_ip6() and in particular ND6) + * *all* addresses are properly zoned. Thus, on the output paths down the + * stack, various places deal with the case of addresses that lack a zone. + * Some of them are best-effort for efficiency (e.g. the PCB bind and connect + * API calls' attempts to add missing zones); ultimately the IPv6 output + * handler (@ref ip6_output_if_src) will set a zone if necessary. + * + * Aside from dealing with scoped addresses lacking a zone, a proper IPv6 + * implementation must also ensure that a packet with a scoped source and/or + * destination address does not leave its zone. This is currently implemented + * in the input and forward functions. However, for output, these checks are + * deliberately omitted in order to keep the implementation lightweight. The + * routing algorithm in @ref ip6_route will take decisions such that it will + * not cause zone violations unless the application sets bad addresses, though. + * + * In terms of scoping policy, lwIP implements the default policy from RFC 4007 + * using macros in this file. This policy considers link-local unicast + * addresses and (only) interface-local and link-local multicast addresses as + * having a scope. For all these addresses, the zone is equal to the interface. + * As shown below in this file, it is possible to implement a custom policy. + */ + +/* + * Copyright (c) 2017 The MINIX 3 Project. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: David van Moolenbroek + * + */ +#ifndef LWIP_HDR_IP6_ZONE_H +#define LWIP_HDR_IP6_ZONE_H + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup ip6_zones IPv6 Zones + * @ingroup ip6 + * @{ + */ + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +/** Identifier for "no zone". */ +#define IP6_NO_ZONE 0 + +#if LWIP_IPV6_SCOPES + +/** Zone initializer for static IPv6 address initialization, including comma. */ +#define IPADDR6_ZONE_INIT , IP6_NO_ZONE + +/** Return the zone index of the given IPv6 address; possibly "no zone". */ +#define ip6_addr_zone(ip6addr) ((ip6addr)->zone) + +/** Does the given IPv6 address have a zone set? (0/1) */ +#define ip6_addr_has_zone(ip6addr) (ip6_addr_zone(ip6addr) != IP6_NO_ZONE) + +/** Set the zone field of an IPv6 address to a particular value. */ +#define ip6_addr_set_zone(ip6addr, zone_idx) ((ip6addr)->zone = (zone_idx)) + +/** Clear the zone field of an IPv6 address, setting it to "no zone". */ +#define ip6_addr_clear_zone(ip6addr) ((ip6addr)->zone = IP6_NO_ZONE) + +/** Copy the zone field from the second IPv6 address to the first one. */ +#define ip6_addr_copy_zone(ip6addr1, ip6addr2) ((ip6addr1).zone = (ip6addr2).zone) + +/** Is the zone field of the given IPv6 address equal to the given zone index? (0/1) */ +#define ip6_addr_equals_zone(ip6addr, zone_idx) ((ip6addr)->zone == (zone_idx)) + +/** @deprecated Renamed to @ref ip6_addr_zone_eq */ +#define ip6_addr_cmp_zone(addr1, addr2) ip6_addr_zone_eq(ip6addr1, ip6addr2) +/** Are the zone fields of the given IPv6 addresses equal? (0/1) + * This macro must only be used on IPv6 addresses of the same scope. */ +#define ip6_addr_zone_eq(ip6addr1, ip6addr2) ((ip6addr1)->zone == (ip6addr2)->zone) + +/** Symbolic constants for the 'type' parameters in some of the macros. + * These exist for efficiency only, allowing the macros to avoid certain tests + * when the address is known not to be of a certain type. Dead code elimination + * will do the rest. IP6_MULTICAST is supported but currently not optimized. + * @see ip6_addr_has_scope, ip6_addr_assign_zone, ip6_addr_lacks_zone. + */ +enum lwip_ipv6_scope_type +{ + /** Unknown */ + IP6_UNKNOWN = 0, + /** Unicast */ + IP6_UNICAST = 1, + /** Multicast */ + IP6_MULTICAST = 2 +}; + +/** IPV6_CUSTOM_SCOPES: together, the following three macro definitions, + * @ref ip6_addr_has_scope, @ref ip6_addr_assign_zone, and + * @ref ip6_addr_test_zone, completely define the lwIP scoping policy. + * The definitions below implement the default policy from RFC 4007 Sec. 6. + * Should an implementation desire to implement a different policy, it can + * define IPV6_CUSTOM_SCOPES to 1 and supply its own definitions for the three + * macros instead. + */ +#ifndef IPV6_CUSTOM_SCOPES +#define IPV6_CUSTOM_SCOPES 0 +#endif /* !IPV6_CUSTOM_SCOPES */ + +#if !IPV6_CUSTOM_SCOPES + +/** + * Determine whether an IPv6 address has a constrained scope, and as such is + * meaningful only if accompanied by a zone index to identify the scope's zone. + * The given address type may be used to eliminate at compile time certain + * checks that will evaluate to false at run time anyway. + * + * This default implementation follows the default model of RFC 4007, where + * only interface-local and link-local scopes are defined. + * + * Even though the unicast loopback address does have an implied link-local + * scope, in this implementation it does not have an explicitly assigned zone + * index. As such it should not be tested for in this macro. + * + * @param ip6addr the IPv6 address (const); only its address part is examined. + * @param type address type; see @ref lwip_ipv6_scope_type. + * @return 1 if the address has a constrained scope, 0 if it does not. + */ +#define ip6_addr_has_scope(ip6addr, type) \ + (ip6_addr_islinklocal(ip6addr) || (((type) != IP6_UNICAST) && \ + (ip6_addr_ismulticast_iflocal(ip6addr) || \ + ip6_addr_ismulticast_linklocal(ip6addr)))) + +/** + * Assign a zone index to an IPv6 address, based on a network interface. If the + * given address has a scope, the assigned zone index is that scope's zone of + * the given netif; otherwise, the assigned zone index is "no zone". + * + * This default implementation follows the default model of RFC 4007, where + * only interface-local and link-local scopes are defined, and the zone index + * of both of those scopes always equals the index of the network interface. + * As such, this default implementation need not distinguish between different + * constrained scopes when assigning the zone. + * + * @param ip6addr the IPv6 address; its address part is examined, and its zone + * index is assigned. + * @param type address type; see @ref lwip_ipv6_scope_type. + * @param netif the network interface (const). + */ +#define ip6_addr_assign_zone(ip6addr, type, netif) \ + (ip6_addr_set_zone((ip6addr), \ + ip6_addr_has_scope((ip6addr), (type)) ? netif_get_index(netif) : 0)) + +/** + * Test whether an IPv6 address is "zone-compatible" with a network interface. + * That is, test whether the network interface is part of the zone associated + * with the address. For efficiency, this macro is only ever called if the + * given address is either scoped or zoned, and thus, it need not test this. + * If an address is scoped but not zoned, or zoned and not scoped, it is + * considered not zone-compatible with any netif. + * + * This default implementation follows the default model of RFC 4007, where + * only interface-local and link-local scopes are defined, and the zone index + * of both of those scopes always equals the index of the network interface. + * As such, there is always only one matching netif for a specific zone index, + * but all call sites of this macro currently support multiple matching netifs + * as well (at no additional expense in the common case). + * + * @param ip6addr the IPv6 address (const). + * @param netif the network interface (const). + * @return 1 if the address is scope-compatible with the netif, 0 if not. + */ +#define ip6_addr_test_zone(ip6addr, netif) \ + (ip6_addr_equals_zone((ip6addr), netif_get_index(netif))) + +#endif /* !IPV6_CUSTOM_SCOPES */ + +/** Does the given IPv6 address have a scope, and as such should also have a + * zone to be meaningful, but does not actually have a zone? (0/1) */ +#define ip6_addr_lacks_zone(ip6addr, type) \ + (!ip6_addr_has_zone(ip6addr) && ip6_addr_has_scope((ip6addr), (type))) + +/** + * Try to select a zone for a scoped address that does not yet have a zone. + * Called from PCB bind and connect routines, for two reasons: 1) to save on + * this (relatively expensive) selection for every individual packet route + * operation and 2) to allow the application to obtain the selected zone from + * the PCB as is customary for e.g. getsockname/getpeername BSD socket calls. + * + * Ideally, callers would always supply a properly zoned address, in which case + * this function would not be needed. It exists both for compatibility with the + * BSD socket API (which accepts zoneless destination addresses) and for + * backward compatibility with pre-scoping lwIP code. + * + * It may be impossible to select a zone, e.g. if there are no netifs. In that + * case, the address's zone field will be left as is. + * + * @param dest the IPv6 address for which to select and set a zone. + * @param src source IPv6 address (const); may be equal to dest. + */ +#define ip6_addr_select_zone(dest, src) do { struct netif *selected_netif; \ + selected_netif = ip6_route((src), (dest)); \ + if (selected_netif != NULL) { \ + ip6_addr_assign_zone((dest), IP6_UNKNOWN, selected_netif); \ + } } while (0) + +/** + * @} + */ + +#else /* LWIP_IPV6_SCOPES */ + +#define IPADDR6_ZONE_INIT +#define ip6_addr_zone(ip6addr) (IP6_NO_ZONE) +#define ip6_addr_has_zone(ip6addr) (0) +#define ip6_addr_set_zone(ip6addr, zone_idx) +#define ip6_addr_clear_zone(ip6addr) +#define ip6_addr_copy_zone(ip6addr1, ip6addr2) +#define ip6_addr_equals_zone(ip6addr, zone_idx) (1) +#define ip6_addr_zone_eq(ip6addr1, ip6addr2) (1) +#define IPV6_CUSTOM_SCOPES 0 +#define ip6_addr_has_scope(ip6addr, type) (0) +#define ip6_addr_assign_zone(ip6addr, type, netif) +#define ip6_addr_test_zone(ip6addr, netif) (1) +#define ip6_addr_lacks_zone(ip6addr, type) (0) +#define ip6_addr_select_zone(ip6addr, src) + +#endif /* LWIP_IPV6_SCOPES */ + +#if LWIP_IPV6_SCOPES && LWIP_IPV6_SCOPES_DEBUG + +/** Verify that the given IPv6 address is properly zoned. */ +#define IP6_ADDR_ZONECHECK(ip6addr) LWIP_ASSERT("IPv6 zone check failed", \ + ip6_addr_has_scope(ip6addr, IP6_UNKNOWN) == ip6_addr_has_zone(ip6addr)) + +/** Verify that the given IPv6 address is properly zoned for the given netif. */ +#define IP6_ADDR_ZONECHECK_NETIF(ip6addr, netif) LWIP_ASSERT("IPv6 netif zone check failed", \ + ip6_addr_has_scope(ip6addr, IP6_UNKNOWN) ? \ + (ip6_addr_has_zone(ip6addr) && \ + (((netif) == NULL) || ip6_addr_test_zone((ip6addr), (netif)))) : \ + !ip6_addr_has_zone(ip6addr)) + +#else /* LWIP_IPV6_SCOPES && LWIP_IPV6_SCOPES_DEBUG */ + +#define IP6_ADDR_ZONECHECK(ip6addr) +#define IP6_ADDR_ZONECHECK_NETIF(ip6addr, netif) + +#endif /* LWIP_IPV6_SCOPES && LWIP_IPV6_SCOPES_DEBUG */ + +#endif /* LWIP_IPV6 */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_IP6_ZONE_H */ diff --git a/middleware/lwip/src/include/lwip/ip_addr.h b/middleware/lwip/src/include/lwip/ip_addr.h new file mode 100644 index 0000000..77fdcb3 --- /dev/null +++ b/middleware/lwip/src/include/lwip/ip_addr.h @@ -0,0 +1,458 @@ +/** + * @file + * IP address API (common IPv4 and IPv6) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_IP_ADDR_H +#define LWIP_HDR_IP_ADDR_H + +#include "lwip/opt.h" +#include "lwip/def.h" + +#include "lwip/ip4_addr.h" +#include "lwip/ip6_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** @ingroup ipaddr + * IP address types for use in ip_addr_t.type member. + * @see tcp_new_ip_type(), udp_new_ip_type(), raw_new_ip_type(). + */ +enum lwip_ip_addr_type { + /** IPv4 */ + IPADDR_TYPE_V4 = 0U, + /** IPv6 */ + IPADDR_TYPE_V6 = 6U, + /** IPv4+IPv6 ("dual-stack") */ + IPADDR_TYPE_ANY = 46U +}; + +#if LWIP_IPV4 && LWIP_IPV6 +/** + * @ingroup ipaddr + * A union struct for both IP version's addresses. + * ATTENTION: watch out for its size when adding IPv6 address scope! + */ +typedef struct ip_addr { + union { + ip6_addr_t ip6; + ip4_addr_t ip4; + } u_addr; + /** @ref lwip_ip_addr_type */ + u8_t type; +} ip_addr_t; + +extern const ip_addr_t ip_addr_any_type; + +/** @ingroup ip4addr */ +#define IPADDR4_INIT(u32val) { { { { u32val, 0ul, 0ul, 0ul } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_V4 } +/** @ingroup ip4addr */ +#define IPADDR4_INIT_BYTES(a,b,c,d) IPADDR4_INIT(PP_HTONL(LWIP_MAKEU32(a,b,c,d))) + +/** @ingroup ip6addr */ +#define IPADDR6_INIT(a, b, c, d) { { { { a, b, c, d } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_V6 } +/** @ingroup ip6addr */ +#define IPADDR6_INIT_HOST(a, b, c, d) { { { { PP_HTONL(a), PP_HTONL(b), PP_HTONL(c), PP_HTONL(d) } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_V6 } + +/** @ingroup ipaddr */ +#define IP_IS_ANY_TYPE_VAL(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_ANY) +/** @ingroup ipaddr */ +#define IPADDR_ANY_TYPE_INIT { { { { 0ul, 0ul, 0ul, 0ul } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_ANY } + +/** @ingroup ip4addr */ +#define IP_IS_V4_VAL(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_V4) +/** @ingroup ip6addr */ +#define IP_IS_V6_VAL(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_V6) +/** @ingroup ip4addr */ +#define IP_IS_V4(ipaddr) (((ipaddr) == NULL) || IP_IS_V4_VAL(*(ipaddr))) +/** @ingroup ip6addr */ +#define IP_IS_V6(ipaddr) (((ipaddr) != NULL) && IP_IS_V6_VAL(*(ipaddr))) + +#define IP_SET_TYPE_VAL(ipaddr, iptype) do { (ipaddr).type = (iptype); }while(0) +#define IP_SET_TYPE(ipaddr, iptype) do { if((ipaddr) != NULL) { IP_SET_TYPE_VAL(*(ipaddr), iptype); }}while(0) +#define IP_GET_TYPE(ipaddr) ((ipaddr)->type) + +#define IP_ADDR_RAW_SIZE(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_V4 ? sizeof(ip4_addr_t) : sizeof(ip6_addr_t)) + +#define IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ipaddr) (IP_GET_TYPE(&pcb->local_ip) == IP_GET_TYPE(ipaddr)) +#define IP_ADDR_PCB_VERSION_MATCH(pcb, ipaddr) (IP_IS_ANY_TYPE_VAL(pcb->local_ip) || IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ipaddr)) + +/** @ingroup ip6addr + * Convert generic ip address to specific protocol version + */ +#define ip_2_ip6(ipaddr) (&((ipaddr)->u_addr.ip6)) +/** @ingroup ip4addr + * Convert generic ip address to specific protocol version + */ +#define ip_2_ip4(ipaddr) (&((ipaddr)->u_addr.ip4)) + +/** @ingroup ip4addr */ +#define IP_ADDR4(ipaddr,a,b,c,d) do { IP4_ADDR(ip_2_ip4(ipaddr),a,b,c,d); \ + IP_SET_TYPE_VAL(*(ipaddr), IPADDR_TYPE_V4); } while(0) +/** @ingroup ip6addr */ +#define IP_ADDR6(ipaddr,i0,i1,i2,i3) do { IP6_ADDR(ip_2_ip6(ipaddr),i0,i1,i2,i3); \ + IP_SET_TYPE_VAL(*(ipaddr), IPADDR_TYPE_V6); } while(0) +/** @ingroup ip6addr */ +#define IP_ADDR6_HOST(ipaddr,i0,i1,i2,i3) IP_ADDR6(ipaddr,PP_HTONL(i0),PP_HTONL(i1),PP_HTONL(i2),PP_HTONL(i3)) + +#define ip_clear_no4(ipaddr) do { ip_2_ip6(ipaddr)->addr[1] = \ + ip_2_ip6(ipaddr)->addr[2] = \ + ip_2_ip6(ipaddr)->addr[3] = 0; \ + ip6_addr_clear_zone(ip_2_ip6(ipaddr)); }while(0) + +/** @ingroup ipaddr */ +#define ip_addr_copy(dest, src) do{ IP_SET_TYPE_VAL(dest, IP_GET_TYPE(&src)); if(IP_IS_V6_VAL(src)){ \ + ip6_addr_copy(*ip_2_ip6(&(dest)), *ip_2_ip6(&(src))); }else{ \ + ip4_addr_copy(*ip_2_ip4(&(dest)), *ip_2_ip4(&(src))); ip_clear_no4(&dest); }}while(0) +/** @ingroup ip6addr */ +#define ip_addr_copy_from_ip6(dest, src) do{ \ + ip6_addr_copy(*ip_2_ip6(&(dest)), src); IP_SET_TYPE_VAL(dest, IPADDR_TYPE_V6); }while(0) +/** @ingroup ip6addr */ +#define ip_addr_copy_from_ip6_packed(dest, src) do{ \ + ip6_addr_copy_from_packed(*ip_2_ip6(&(dest)), src); IP_SET_TYPE_VAL(dest, IPADDR_TYPE_V6); }while(0) +/** @ingroup ip4addr */ +#define ip_addr_copy_from_ip4(dest, src) do{ \ + ip4_addr_copy(*ip_2_ip4(&(dest)), src); IP_SET_TYPE_VAL(dest, IPADDR_TYPE_V4); ip_clear_no4(&dest); }while(0) +/** @ingroup ip4addr */ +#define ip_addr_set_ip4_u32(ipaddr, val) do{if(ipaddr){ip4_addr_set_u32(ip_2_ip4(ipaddr), val); \ + IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0) +/** @ingroup ip4addr */ +#define ip_addr_set_ip4_u32_val(ipaddr, val) do{ ip4_addr_set_u32(ip_2_ip4(&(ipaddr)), val); \ + IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(&ipaddr); }while(0) +/** @ingroup ip4addr */ +#define ip_addr_get_ip4_u32(ipaddr) (((ipaddr) && IP_IS_V4(ipaddr)) ? \ + ip4_addr_get_u32(ip_2_ip4(ipaddr)) : 0) +/** @ingroup ipaddr */ +#define ip_addr_set(dest, src) do{ IP_SET_TYPE(dest, IP_GET_TYPE(src)); if(IP_IS_V6(src)){ \ + ip6_addr_set(ip_2_ip6(dest), ip_2_ip6(src)); }else{ \ + ip4_addr_set(ip_2_ip4(dest), ip_2_ip4(src)); ip_clear_no4(dest); }}while(0) +/** @ingroup ipaddr */ +#define ip_addr_set_ipaddr(dest, src) ip_addr_set(dest, src) +/** @ingroup ipaddr */ +#define ip_addr_set_zero(ipaddr) do{ \ + ip6_addr_set_zero(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, 0); }while(0) +/** @ingroup ip5addr */ +#define ip_addr_set_zero_ip4(ipaddr) do{ \ + ip6_addr_set_zero(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); }while(0) +/** @ingroup ip6addr */ +#define ip_addr_set_zero_ip6(ipaddr) do{ \ + ip6_addr_set_zero(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V6); }while(0) +/** @ingroup ipaddr */ +#define ip_addr_set_any(is_ipv6, ipaddr) do{if(is_ipv6){ \ + ip6_addr_set_any(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V6); }else{ \ + ip4_addr_set_any(ip_2_ip4(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0) +/** @ingroup ipaddr */ +#define ip_addr_set_any_val(is_ipv6, ipaddr) do{if(is_ipv6){ \ + ip6_addr_set_any(ip_2_ip6(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V6); }else{ \ + ip4_addr_set_any(ip_2_ip4(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(&ipaddr); }}while(0) +/** @ingroup ipaddr */ +#define ip_addr_set_loopback(is_ipv6, ipaddr) do{if(is_ipv6){ \ + ip6_addr_set_loopback(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V6); }else{ \ + ip4_addr_set_loopback(ip_2_ip4(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0) +/** @ingroup ipaddr */ +#define ip_addr_set_loopback_val(is_ipv6, ipaddr) do{if(is_ipv6){ \ + ip6_addr_set_loopback(ip_2_ip6(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V6); }else{ \ + ip4_addr_set_loopback(ip_2_ip4(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(&ipaddr); }}while(0) +/** @ingroup ipaddr */ +#define ip_addr_set_hton(dest, src) do{if(IP_IS_V6(src)){ \ + ip6_addr_set_hton(ip_2_ip6(dest), ip_2_ip6(src)); IP_SET_TYPE(dest, IPADDR_TYPE_V6); }else{ \ + ip4_addr_set_hton(ip_2_ip4(dest), ip_2_ip4(src)); IP_SET_TYPE(dest, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0) +/** @ingroup ipaddr */ +#define ip_addr_get_network(target, host, netmask) do{if(IP_IS_V6(host)){ \ + ip4_addr_set_zero(ip_2_ip4(target)); IP_SET_TYPE(target, IPADDR_TYPE_V6); } else { \ + ip4_addr_get_network(ip_2_ip4(target), ip_2_ip4(host), ip_2_ip4(netmask)); IP_SET_TYPE(target, IPADDR_TYPE_V4); }}while(0) +/** + * @ingroup ipaddr + * @deprecated Renamed to @ref ip_addr_net_eq + */ +#define ip_addr_netcmp(addr1, addr2, mask) ip_addr_net_eq((addr1), (addr2), (mask)) +/** @ingroup ipaddr */ +#define ip_addr_net_eq(addr1, addr2, mask) ((IP_IS_V6(addr1) && IP_IS_V6(addr2)) ? \ + 0 : \ + ip4_addr_net_eq(ip_2_ip4(addr1), ip_2_ip4(addr2), mask)) +/** + * @ingroup ipaddr + * @deprecated Renamed to @ref ip_addr_eq + */ +#define ip_addr_cmp(addr1, addr2) ip_addr_eq((addr1), (addr2)) +/** @ingroup ipaddr */ +#define ip_addr_eq(addr1, addr2) ((IP_GET_TYPE(addr1) != IP_GET_TYPE(addr2)) ? 0 : (IP_IS_V6_VAL(*(addr1)) ? \ + ip6_addr_eq(ip_2_ip6(addr1), ip_2_ip6(addr2)) : \ + ip4_addr_eq(ip_2_ip4(addr1), ip_2_ip4(addr2)))) +/** + * @ingroup ipaddr + * @deprecated Renamed to @ref ip_addr_zoneless_eq + */ +#define ip_addr_cmp_zoneless(addr1, addr2) ip_addr_zoneless_eq((addr1), (addr2)) +/** @ingroup ipaddr */ +#define ip_addr_zoneless_eq(addr1, addr2) ((IP_GET_TYPE(addr1) != IP_GET_TYPE(addr2)) ? 0 : (IP_IS_V6_VAL(*(addr1)) ? \ + ip6_addr_zoneless_eq(ip_2_ip6(addr1), ip_2_ip6(addr2)) : \ + ip4_addr_eq(ip_2_ip4(addr1), ip_2_ip4(addr2)))) +/** @ingroup ipaddr */ +#define ip_addr_isany(ipaddr) (((ipaddr) == NULL) ? 1 : ((IP_IS_V6(ipaddr)) ? \ + ip6_addr_isany(ip_2_ip6(ipaddr)) : \ + ip4_addr_isany(ip_2_ip4(ipaddr)))) +/** @ingroup ipaddr */ +#define ip_addr_isany_val(ipaddr) ((IP_IS_V6_VAL(ipaddr)) ? \ + ip6_addr_isany_val(*ip_2_ip6(&(ipaddr))) : \ + ip4_addr_isany_val(*ip_2_ip4(&(ipaddr)))) +/** @ingroup ipaddr */ +#define ip_addr_isbroadcast(ipaddr, netif) ((IP_IS_V6(ipaddr)) ? \ + 0 : \ + ip4_addr_isbroadcast(ip_2_ip4(ipaddr), netif)) +/** @ingroup ipaddr */ +#define ip_addr_ismulticast(ipaddr) ((IP_IS_V6(ipaddr)) ? \ + ip6_addr_ismulticast(ip_2_ip6(ipaddr)) : \ + ip4_addr_ismulticast(ip_2_ip4(ipaddr))) +/** @ingroup ipaddr */ +#define ip_addr_isloopback(ipaddr) ((IP_IS_V6(ipaddr)) ? \ + ip6_addr_isloopback(ip_2_ip6(ipaddr)) : \ + ip4_addr_isloopback(ip_2_ip4(ipaddr))) +/** @ingroup ipaddr */ +#define ip_addr_islinklocal(ipaddr) ((IP_IS_V6(ipaddr)) ? \ + ip6_addr_islinklocal(ip_2_ip6(ipaddr)) : \ + ip4_addr_islinklocal(ip_2_ip4(ipaddr))) +#define ip_addr_debug_print(debug, ipaddr) do { if(IP_IS_V6(ipaddr)) { \ + ip6_addr_debug_print(debug, ip_2_ip6(ipaddr)); } else { \ + ip4_addr_debug_print(debug, ip_2_ip4(ipaddr)); }}while(0) +#define ip_addr_debug_print_val(debug, ipaddr) do { if(IP_IS_V6_VAL(ipaddr)) { \ + ip6_addr_debug_print_val(debug, *ip_2_ip6(&(ipaddr))); } else { \ + ip4_addr_debug_print_val(debug, *ip_2_ip4(&(ipaddr))); }}while(0) +char *ipaddr_ntoa(const ip_addr_t *addr); +char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen); +int ipaddr_aton(const char *cp, ip_addr_t *addr); + +/** @ingroup ipaddr */ +#define IPADDR_STRLEN_MAX IP6ADDR_STRLEN_MAX + +/** @ingroup ipaddr */ +#define ip4_2_ipv4_mapped_ipv6(ip6addr, ip4addr) do { \ + (ip6addr)->addr[3] = (ip4addr)->addr; \ + (ip6addr)->addr[2] = PP_HTONL(0x0000FFFFUL); \ + (ip6addr)->addr[1] = 0; \ + (ip6addr)->addr[0] = 0; \ + ip6_addr_clear_zone(ip6addr); } while(0); + +/** @ingroup ipaddr */ +#define unmap_ipv4_mapped_ipv6(ip4addr, ip6addr) \ + (ip4addr)->addr = (ip6addr)->addr[3]; + +#define IP46_ADDR_ANY(type) (((type) == IPADDR_TYPE_V6)? IP6_ADDR_ANY : IP4_ADDR_ANY) + +#else /* LWIP_IPV4 && LWIP_IPV6 */ + +#define IP_ADDR_PCB_VERSION_MATCH(addr, pcb) 1 +#define IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ipaddr) 1 + +#define ip_addr_set_any_val(is_ipv6, ipaddr) ip_addr_set_any(is_ipv6, &(ipaddr)) +#define ip_addr_set_loopback_val(is_ipv6, ipaddr) ip_addr_set_loopback(is_ipv6, &(ipaddr)) + +#if LWIP_IPV4 + +typedef ip4_addr_t ip_addr_t; +#define IPADDR4_INIT(u32val) { u32val } +#define IPADDR4_INIT_BYTES(a,b,c,d) IPADDR4_INIT(PP_HTONL(LWIP_MAKEU32(a,b,c,d))) +#define IP_IS_V4_VAL(ipaddr) 1 +#define IP_IS_V6_VAL(ipaddr) 0 +#define IP_IS_V4(ipaddr) 1 +#define IP_IS_V6(ipaddr) 0 +#define IP_IS_ANY_TYPE_VAL(ipaddr) 0 +#define IP_SET_TYPE_VAL(ipaddr, iptype) +#define IP_SET_TYPE(ipaddr, iptype) +#define IP_GET_TYPE(ipaddr) IPADDR_TYPE_V4 +#define IP_ADDR_RAW_SIZE(ipaddr) sizeof(ip4_addr_t) +#define ip_2_ip4(ipaddr) (ipaddr) +#define IP_ADDR4(ipaddr,a,b,c,d) IP4_ADDR(ipaddr,a,b,c,d) + +#define ip_addr_copy(dest, src) ip4_addr_copy(dest, src) +#define ip_addr_copy_from_ip4(dest, src) ip4_addr_copy(dest, src) +#define ip_addr_set_ip4_u32(ipaddr, val) ip4_addr_set_u32(ip_2_ip4(ipaddr), val) +#define ip_addr_set_ip4_u32_val(ipaddr, val) ip_addr_set_ip4_u32(&(ipaddr), val) +#define ip_addr_get_ip4_u32(ipaddr) ip4_addr_get_u32(ip_2_ip4(ipaddr)) +#define ip_addr_set(dest, src) ip4_addr_set(dest, src) +#define ip_addr_set_ipaddr(dest, src) ip4_addr_set(dest, src) +#define ip_addr_set_zero(ipaddr) ip4_addr_set_zero(ipaddr) +#define ip_addr_set_zero_ip4(ipaddr) ip4_addr_set_zero(ipaddr) +#define ip_addr_set_any(is_ipv6, ipaddr) ip4_addr_set_any(ipaddr) +#define ip_addr_set_loopback(is_ipv6, ipaddr) ip4_addr_set_loopback(ipaddr) +#define ip_addr_set_hton(dest, src) ip4_addr_set_hton(dest, src) +#define ip_addr_get_network(target, host, mask) ip4_addr_get_network(target, host, mask) +#define ip_addr_netcmp(addr1, addr2, mask) ip4_addr_net_eq(addr1, addr2, mask) +#define ip_addr_net_eq(addr1, addr2, mask) ip4_addr_net_eq(addr1, addr2, mask) +#define ip_addr_cmp(addr1, addr2) ip4_addr_eq(addr1, addr2) +#define ip_addr_eq(addr1, addr2) ip4_addr_eq(addr1, addr2) +#define ip_addr_isany(ipaddr) ip4_addr_isany(ipaddr) +#define ip_addr_isany_val(ipaddr) ip4_addr_isany_val(ipaddr) +#define ip_addr_isloopback(ipaddr) ip4_addr_isloopback(ipaddr) +#define ip_addr_islinklocal(ipaddr) ip4_addr_islinklocal(ipaddr) +#define ip_addr_isbroadcast(addr, netif) ip4_addr_isbroadcast(addr, netif) +#define ip_addr_ismulticast(ipaddr) ip4_addr_ismulticast(ipaddr) +#define ip_addr_debug_print(debug, ipaddr) ip4_addr_debug_print(debug, ipaddr) +#define ip_addr_debug_print_val(debug, ipaddr) ip4_addr_debug_print_val(debug, ipaddr) +#define ipaddr_ntoa(ipaddr) ip4addr_ntoa(ipaddr) +#define ipaddr_ntoa_r(ipaddr, buf, buflen) ip4addr_ntoa_r(ipaddr, buf, buflen) +#define ipaddr_aton(cp, addr) ip4addr_aton(cp, addr) + +#define IPADDR_STRLEN_MAX IP4ADDR_STRLEN_MAX + +#define IP46_ADDR_ANY(type) (IP4_ADDR_ANY) + +#else /* LWIP_IPV4 */ + +typedef ip6_addr_t ip_addr_t; +#define IPADDR6_INIT(a, b, c, d) { { a, b, c, d } IPADDR6_ZONE_INIT } +#define IPADDR6_INIT_HOST(a, b, c, d) { { PP_HTONL(a), PP_HTONL(b), PP_HTONL(c), PP_HTONL(d) } IPADDR6_ZONE_INIT } +#define IP_IS_V4_VAL(ipaddr) 0 +#define IP_IS_V6_VAL(ipaddr) 1 +#define IP_IS_V4(ipaddr) 0 +#define IP_IS_V6(ipaddr) 1 +#define IP_IS_ANY_TYPE_VAL(ipaddr) 0 +#define IP_SET_TYPE_VAL(ipaddr, iptype) +#define IP_SET_TYPE(ipaddr, iptype) +#define IP_GET_TYPE(ipaddr) IPADDR_TYPE_V6 +#define IP_ADDR_RAW_SIZE(ipaddr) sizeof(ip6_addr_t) +#define ip_2_ip6(ipaddr) (ipaddr) +#define IP_ADDR6(ipaddr,i0,i1,i2,i3) IP6_ADDR(ipaddr,i0,i1,i2,i3) +#define IP_ADDR6_HOST(ipaddr,i0,i1,i2,i3) IP_ADDR6(ipaddr,PP_HTONL(i0),PP_HTONL(i1),PP_HTONL(i2),PP_HTONL(i3)) + +#define ip_addr_copy(dest, src) ip6_addr_copy(dest, src) +#define ip_addr_copy_from_ip6(dest, src) ip6_addr_copy(dest, src) +#define ip_addr_copy_from_ip6_packed(dest, src) ip6_addr_copy_from_packed(dest, src) +#define ip_addr_set(dest, src) ip6_addr_set(dest, src) +#define ip_addr_set_ipaddr(dest, src) ip6_addr_set(dest, src) +#define ip_addr_set_zero(ipaddr) ip6_addr_set_zero(ipaddr) +#define ip_addr_set_zero_ip6(ipaddr) ip6_addr_set_zero(ipaddr) +#define ip_addr_set_any(is_ipv6, ipaddr) ip6_addr_set_any(ipaddr) +#define ip_addr_set_loopback(is_ipv6, ipaddr) ip6_addr_set_loopback(ipaddr) +#define ip_addr_set_hton(dest, src) ip6_addr_set_hton(dest, src) +#define ip_addr_get_network(target, host, mask) ip6_addr_set_zero(target) +#define ip_addr_netcmp(addr1, addr2, mask) 0 +#define ip_addr_net_eq(addr1, addr2, mask) 0 +#define ip_addr_cmp(addr1, addr2) ip6_addr_eq(addr1, addr2) +#define ip_addr_eq(addr1, addr2) ip6_addr_eq(addr1, addr2) +#define ip_addr_cmp_zoneless(addr1, addr2) ip6_addr_zoneless_eq(addr1, addr2) +#define ip_addr_zoneless_eq(addr1, addr2) ip6_addr_zoneless_eq(addr1, addr2) +#define ip_addr_isany(ipaddr) ip6_addr_isany(ipaddr) +#define ip_addr_isany_val(ipaddr) ip6_addr_isany_val(ipaddr) +#define ip_addr_isloopback(ipaddr) ip6_addr_isloopback(ipaddr) +#define ip_addr_islinklocal(ipaddr) ip6_addr_islinklocal(ipaddr) +#define ip_addr_isbroadcast(addr, netif) 0 +#define ip_addr_ismulticast(ipaddr) ip6_addr_ismulticast(ipaddr) +#define ip_addr_debug_print(debug, ipaddr) ip6_addr_debug_print(debug, ipaddr) +#define ip_addr_debug_print_val(debug, ipaddr) ip6_addr_debug_print_val(debug, ipaddr) +#define ipaddr_ntoa(ipaddr) ip6addr_ntoa(ipaddr) +#define ipaddr_ntoa_r(ipaddr, buf, buflen) ip6addr_ntoa_r(ipaddr, buf, buflen) +#define ipaddr_aton(cp, addr) ip6addr_aton(cp, addr) + +#define IPADDR_STRLEN_MAX IP6ADDR_STRLEN_MAX + +#define IP46_ADDR_ANY(type) (IP6_ADDR_ANY) + +#endif /* LWIP_IPV4 */ +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + +#if LWIP_IPV4 + +extern const ip_addr_t ip_addr_any; +extern const ip_addr_t ip_addr_broadcast; + +/** + * @ingroup ip4addr + * Can be used as a fixed/const ip_addr_t + * for the IP wildcard. + * Defined to @ref IP4_ADDR_ANY when IPv4 is enabled. + * Defined to @ref IP6_ADDR_ANY in IPv6 only systems. + * Use this if you can handle IPv4 _AND_ IPv6 addresses. + * Use @ref IP4_ADDR_ANY or @ref IP6_ADDR_ANY when the IP + * type matters. + */ +#define IP_ADDR_ANY IP4_ADDR_ANY +/** + * @ingroup ip4addr + * Can be used as a fixed/const ip_addr_t + * for the IPv4 wildcard and the broadcast address + */ +#define IP4_ADDR_ANY (&ip_addr_any) +/** + * @ingroup ip4addr + * Can be used as a fixed/const ip4_addr_t + * for the wildcard and the broadcast address + */ +#define IP4_ADDR_ANY4 (ip_2_ip4(&ip_addr_any)) + +/** @ingroup ip4addr */ +#define IP_ADDR_BROADCAST (&ip_addr_broadcast) +/** @ingroup ip4addr */ +#define IP4_ADDR_BROADCAST (ip_2_ip4(&ip_addr_broadcast)) + +#endif /* LWIP_IPV4*/ + +#if LWIP_IPV6 + +extern const ip_addr_t ip6_addr_any; + +/** + * @ingroup ip6addr + * IP6_ADDR_ANY can be used as a fixed ip_addr_t + * for the IPv6 wildcard address + */ +#define IP6_ADDR_ANY (&ip6_addr_any) +/** + * @ingroup ip6addr + * IP6_ADDR_ANY6 can be used as a fixed ip6_addr_t + * for the IPv6 wildcard address + */ +#define IP6_ADDR_ANY6 (ip_2_ip6(&ip6_addr_any)) + +#if !LWIP_IPV4 +/** IPv6-only configurations */ +#define IP_ADDR_ANY IP6_ADDR_ANY +#endif /* !LWIP_IPV4 */ + +#endif + +#if LWIP_IPV4 && LWIP_IPV6 +/** @ingroup ipaddr */ +#define IP_ANY_TYPE (&ip_addr_any_type) +#else +#define IP_ANY_TYPE IP_ADDR_ANY +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_IP_ADDR_H */ diff --git a/middleware/lwip/src/include/lwip/mem.h b/middleware/lwip/src/include/lwip/mem.h new file mode 100644 index 0000000..ff208d2 --- /dev/null +++ b/middleware/lwip/src/include/lwip/mem.h @@ -0,0 +1,82 @@ +/** + * @file + * Heap API + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_MEM_H +#define LWIP_HDR_MEM_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if MEM_LIBC_MALLOC + +#include "lwip/arch.h" + +typedef size_t mem_size_t; +#define MEM_SIZE_F SZT_F + +#elif MEM_USE_POOLS + +typedef u16_t mem_size_t; +#define MEM_SIZE_F U16_F + +#else + +/* MEM_SIZE would have to be aligned, but using 64000 here instead of + * 65535 leaves some room for alignment... + */ +#if MEM_SIZE > 64000L +typedef u32_t mem_size_t; +#define MEM_SIZE_F U32_F +#else +typedef u16_t mem_size_t; +#define MEM_SIZE_F U16_F +#endif /* MEM_SIZE > 64000 */ +#endif + +void mem_init(void); +void *mem_trim(void *mem, mem_size_t size); +void *mem_malloc(mem_size_t size); +void *mem_calloc(mem_size_t count, mem_size_t size); +void mem_free(void *mem); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_MEM_H */ diff --git a/middleware/lwip/src/include/lwip/memp.h b/middleware/lwip/src/include/lwip/memp.h new file mode 100644 index 0000000..1630b26 --- /dev/null +++ b/middleware/lwip/src/include/lwip/memp.h @@ -0,0 +1,155 @@ +/** + * @file + * Memory pool API + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#ifndef LWIP_HDR_MEMP_H +#define LWIP_HDR_MEMP_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* run once with empty definition to handle all custom includes in lwippools.h */ +#define LWIP_MEMPOOL(name,num,size,desc) +#include "lwip/priv/memp_std.h" + +/** Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */ +typedef enum { +#define LWIP_MEMPOOL(name,num,size,desc) MEMP_##name, +#include "lwip/priv/memp_std.h" + MEMP_MAX +} memp_t; + +#include "lwip/priv/memp_priv.h" +#include "lwip/stats.h" + +extern const struct memp_desc* const memp_pools[MEMP_MAX]; + +/** + * @ingroup mempool + * Declare prototype for private memory pool if it is used in multiple files + */ +#define LWIP_MEMPOOL_PROTOTYPE(name) extern const struct memp_desc memp_ ## name + +#if MEMP_MEM_MALLOC + +#define LWIP_MEMPOOL_DECLARE(name,num,size,desc) \ + LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(memp_stats_ ## name) \ + const struct memp_desc memp_ ## name = { \ + DECLARE_LWIP_MEMPOOL_DESC(desc) \ + LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(memp_stats_ ## name) \ + LWIP_MEM_ALIGN_SIZE(size) \ + }; + +#else /* MEMP_MEM_MALLOC */ + +/** + * @ingroup mempool + * Declare a private memory pool + * Private mempools example: + * .h: only when pool is used in multiple .c files: LWIP_MEMPOOL_PROTOTYPE(my_private_pool); + * .c: + * - in global variables section: LWIP_MEMPOOL_DECLARE(my_private_pool, 10, sizeof(foo), "Some description") + * - call ONCE before using pool (e.g. in some init() function): LWIP_MEMPOOL_INIT(my_private_pool); + * - allocate: void* my_new_mem = LWIP_MEMPOOL_ALLOC(my_private_pool); + * - free: LWIP_MEMPOOL_FREE(my_private_pool, my_new_mem); + * + * To relocate a pool, declare it as extern in cc.h. Example for GCC: + * extern u8_t \_\_attribute\_\_((section(".onchip_mem"))) memp_memory_my_private_pool_base[]; + */ +#define LWIP_MEMPOOL_DECLARE(name,num,size,desc) \ + LWIP_DECLARE_MEMORY_ALIGNED(memp_memory_ ## name ## _base, ((num) * (MEMP_SIZE + MEMP_ALIGN_SIZE(size)))); \ + \ + LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(memp_stats_ ## name) \ + \ + static struct memp *memp_tab_ ## name; \ + \ + const struct memp_desc memp_ ## name = { \ + DECLARE_LWIP_MEMPOOL_DESC(desc) \ + LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(memp_stats_ ## name) \ + LWIP_MEM_ALIGN_SIZE(size), \ + (num), \ + memp_memory_ ## name ## _base, \ + &memp_tab_ ## name \ + }; + +#endif /* MEMP_MEM_MALLOC */ + +/** + * @ingroup mempool + * Initialize a private memory pool + */ +#define LWIP_MEMPOOL_INIT(name) memp_init_pool(&memp_ ## name) +/** + * @ingroup mempool + * Allocate from a private memory pool + */ +#define LWIP_MEMPOOL_ALLOC(name) memp_malloc_pool(&memp_ ## name) +/** + * @ingroup mempool + * Free element from a private memory pool + */ +#define LWIP_MEMPOOL_FREE(name, x) memp_free_pool(&memp_ ## name, (x)) + +#if MEM_USE_POOLS +/** This structure is used to save the pool one element came from. + * This has to be defined here as it is required for pool size calculation. */ +struct memp_malloc_helper +{ + memp_t poolnr; +#if MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS) + u16_t size; +#endif /* MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS) */ +}; +#endif /* MEM_USE_POOLS */ + +void memp_init(void); + +#if MEMP_OVERFLOW_CHECK +void *memp_malloc_fn(memp_t type, const char* file, const int line); +#define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__) +#else +void *memp_malloc(memp_t type); +#endif +void memp_free(memp_t type, void *mem); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_MEMP_H */ diff --git a/middleware/lwip/src/include/lwip/mld6.h b/middleware/lwip/src/include/lwip/mld6.h new file mode 100644 index 0000000..2764fdd --- /dev/null +++ b/middleware/lwip/src/include/lwip/mld6.h @@ -0,0 +1,99 @@ +/** + * @file + * + * Multicast listener discovery for IPv6. Aims to be compliant with RFC 2710. + * No support for MLDv2. + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#ifndef LWIP_HDR_MLD6_H +#define LWIP_HDR_MLD6_H + +#include "lwip/opt.h" + +#if LWIP_IPV6_MLD && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/pbuf.h" +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** MLD group */ +struct mld_group { + /** next link */ + struct mld_group *next; + /** multicast address */ + ip6_addr_t group_address; + /** signifies we were the last person to report */ + u8_t last_reporter_flag; + /** current state of the group */ + u8_t group_state; + /** timer for reporting */ + u16_t timer; + /** counter of simultaneous uses */ + u8_t use; +}; + +#define MLD6_TMR_INTERVAL 100 /* Milliseconds */ + +err_t mld6_stop(struct netif *netif); +void mld6_report_groups(struct netif *netif); +void mld6_tmr(void); +struct mld_group *mld6_lookfor_group(struct netif *ifp, const ip6_addr_t *addr); +void mld6_input(struct pbuf *p, struct netif *inp); +err_t mld6_joingroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr); +err_t mld6_joingroup_netif(struct netif *netif, const ip6_addr_t *groupaddr); +err_t mld6_leavegroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr); +err_t mld6_leavegroup_netif(struct netif *netif, const ip6_addr_t *groupaddr); + +/** @ingroup mld6 + * Get list head of MLD6 groups for netif. + * Note: The allnodes group IP is NOT in the list, since it must always + * be received for correct IPv6 operation. + * @see @ref netif_set_mld_mac_filter() + */ +#define netif_mld6_data(netif) ((struct mld_group *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6)) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6_MLD && LWIP_IPV6 */ + +#endif /* LWIP_HDR_MLD6_H */ diff --git a/middleware/lwip/src/include/lwip/nd6.h b/middleware/lwip/src/include/lwip/nd6.h new file mode 100644 index 0000000..c30e624 --- /dev/null +++ b/middleware/lwip/src/include/lwip/nd6.h @@ -0,0 +1,90 @@ +/** + * @file + * + * Neighbor discovery and stateless address autoconfiguration for IPv6. + * Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 + * (Address autoconfiguration). + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#ifndef LWIP_HDR_ND6_H +#define LWIP_HDR_ND6_H + +#include "lwip/opt.h" + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/ip6_addr.h" +#include "lwip/err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** 1 second period */ +#define ND6_TMR_INTERVAL 1000 + +/** Router solicitations are sent in 4 second intervals (see RFC 4861, ch. 6.3.7) */ +#ifndef ND6_RTR_SOLICITATION_INTERVAL +#define ND6_RTR_SOLICITATION_INTERVAL 4000 +#endif + +struct pbuf; +struct netif; + +void nd6_tmr(void); +void nd6_input(struct pbuf *p, struct netif *inp); +void nd6_clear_destination_cache(void); +struct netif *nd6_find_route(const ip6_addr_t *ip6addr); +err_t nd6_get_next_hop_addr_or_queue(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr, const u8_t **hwaddrp); +u16_t nd6_get_destination_mtu(const ip6_addr_t *ip6addr, struct netif *netif); +#if LWIP_ND6_TCP_REACHABILITY_HINTS +void nd6_reachability_hint(const ip6_addr_t *ip6addr); +#endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */ +void nd6_cleanup_netif(struct netif *netif); +#if LWIP_IPV6_MLD +void nd6_adjust_mld_membership(struct netif *netif, s8_t addr_idx, u8_t new_state); +#endif /* LWIP_IPV6_MLD */ +void nd6_restart_netif(struct netif *netif); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6 */ + +#endif /* LWIP_HDR_ND6_H */ diff --git a/middleware/lwip/src/include/lwip/netbuf.h b/middleware/lwip/src/include/lwip/netbuf.h new file mode 100644 index 0000000..42a911b --- /dev/null +++ b/middleware/lwip/src/include/lwip/netbuf.h @@ -0,0 +1,116 @@ +/** + * @file + * netbuf API (for netconn API) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_NETBUF_H +#define LWIP_HDR_NETBUF_H + +#include "lwip/opt.h" + +#if LWIP_NETCONN || LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ +/* Note: Netconn API is always available when sockets are enabled - + * sockets are implemented on top of them */ + +#include "lwip/pbuf.h" +#include "lwip/ip_addr.h" +#include "lwip/ip6_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** This netbuf has dest-addr/port set */ +#define NETBUF_FLAG_DESTADDR 0x01 +/** This netbuf includes a checksum */ +#define NETBUF_FLAG_CHKSUM 0x02 + +/** "Network buffer" - contains data and addressing info */ +struct netbuf { + struct pbuf *p, *ptr; + ip_addr_t addr; + u16_t port; +#if LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY + u8_t flags; + u16_t toport_chksum; +#if LWIP_NETBUF_RECVINFO + ip_addr_t toaddr; +#endif /* LWIP_NETBUF_RECVINFO */ +#endif /* LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY */ +}; + +/* Network buffer functions: */ +struct netbuf * netbuf_new (void); +void netbuf_delete (struct netbuf *buf); +void * netbuf_alloc (struct netbuf *buf, u16_t size); +void netbuf_free (struct netbuf *buf); +err_t netbuf_ref (struct netbuf *buf, + const void *dataptr, u16_t size); +void netbuf_chain (struct netbuf *head, struct netbuf *tail); + +err_t netbuf_data (struct netbuf *buf, + void **dataptr, u16_t *len); +s8_t netbuf_next (struct netbuf *buf); +void netbuf_first (struct netbuf *buf); + + +#define netbuf_copy_partial(buf, dataptr, len, offset) \ + pbuf_copy_partial((buf)->p, (dataptr), (len), (offset)) +#define netbuf_copy(buf,dataptr,len) netbuf_copy_partial(buf, dataptr, len, 0) +#define netbuf_take(buf, dataptr, len) pbuf_take((buf)->p, dataptr, len) +#define netbuf_len(buf) ((buf)->p->tot_len) +#define netbuf_fromaddr(buf) (&((buf)->addr)) +#define netbuf_set_fromaddr(buf, fromaddr) ip_addr_set(&((buf)->addr), fromaddr) +#define netbuf_fromport(buf) ((buf)->port) +#if LWIP_NETBUF_RECVINFO +#define netbuf_destaddr(buf) (&((buf)->toaddr)) +#define netbuf_set_destaddr(buf, destaddr) ip_addr_set(&((buf)->toaddr), destaddr) +#if LWIP_CHECKSUM_ON_COPY +#define netbuf_destport(buf) (((buf)->flags & NETBUF_FLAG_DESTADDR) ? (buf)->toport_chksum : 0) +#else /* LWIP_CHECKSUM_ON_COPY */ +#define netbuf_destport(buf) ((buf)->toport_chksum) +#endif /* LWIP_CHECKSUM_ON_COPY */ +#endif /* LWIP_NETBUF_RECVINFO */ +#if LWIP_CHECKSUM_ON_COPY +#define netbuf_set_chksum(buf, chksum) do { (buf)->flags = NETBUF_FLAG_CHKSUM; \ + (buf)->toport_chksum = chksum; } while(0) +#endif /* LWIP_CHECKSUM_ON_COPY */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_NETCONN || LWIP_SOCKET */ + +#endif /* LWIP_HDR_NETBUF_H */ diff --git a/middleware/lwip/src/include/lwip/netdb.h b/middleware/lwip/src/include/lwip/netdb.h new file mode 100644 index 0000000..d3d15df --- /dev/null +++ b/middleware/lwip/src/include/lwip/netdb.h @@ -0,0 +1,150 @@ +/** + * @file + * NETDB API (sockets) + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_NETDB_H +#define LWIP_HDR_NETDB_H + +#include "lwip/opt.h" + +#if LWIP_DNS && LWIP_SOCKET + +#include "lwip/arch.h" +#include "lwip/inet.h" +#include "lwip/sockets.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* some rarely used options */ +#ifndef LWIP_DNS_API_DECLARE_H_ERRNO +#define LWIP_DNS_API_DECLARE_H_ERRNO 1 +#endif + +#ifndef LWIP_DNS_API_DEFINE_ERRORS +#define LWIP_DNS_API_DEFINE_ERRORS 1 +#endif + +#ifndef LWIP_DNS_API_DEFINE_FLAGS +#define LWIP_DNS_API_DEFINE_FLAGS 1 +#endif + +#ifndef LWIP_DNS_API_DECLARE_STRUCTS +#define LWIP_DNS_API_DECLARE_STRUCTS 1 +#endif + +#if LWIP_DNS_API_DEFINE_ERRORS +/** Errors used by the DNS API functions, h_errno can be one of them */ +#define EAI_NONAME 200 +#define EAI_SERVICE 201 +#define EAI_FAIL 202 +#define EAI_MEMORY 203 +#define EAI_FAMILY 204 + +#define HOST_NOT_FOUND 210 +#define NO_DATA 211 +#define NO_RECOVERY 212 +#define TRY_AGAIN 213 +#endif /* LWIP_DNS_API_DEFINE_ERRORS */ + +#if LWIP_DNS_API_DEFINE_FLAGS +/* input flags for struct addrinfo */ +#define AI_PASSIVE 0x01 +#define AI_CANONNAME 0x02 +#define AI_NUMERICHOST 0x04 +#define AI_NUMERICSERV 0x08 +#define AI_V4MAPPED 0x10 +#define AI_ALL 0x20 +#define AI_ADDRCONFIG 0x40 +#endif /* LWIP_DNS_API_DEFINE_FLAGS */ + +#if LWIP_DNS_API_DECLARE_STRUCTS +struct hostent { + char *h_name; /* Official name of the host. */ + char **h_aliases; /* A pointer to an array of pointers to alternative host names, + terminated by a null pointer. */ + int h_addrtype; /* Address type. */ + int h_length; /* The length, in bytes, of the address. */ + char **h_addr_list; /* A pointer to an array of pointers to network addresses (in + network byte order) for the host, terminated by a null pointer. */ +#define h_addr h_addr_list[0] /* for backward compatibility */ +}; + +struct addrinfo { + int ai_flags; /* Input flags. */ + int ai_family; /* Address family of socket. */ + int ai_socktype; /* Socket type. */ + int ai_protocol; /* Protocol of socket. */ + socklen_t ai_addrlen; /* Length of socket address. */ + struct sockaddr *ai_addr; /* Socket address of socket. */ + char *ai_canonname; /* Canonical name of service location. */ + struct addrinfo *ai_next; /* Pointer to next in list. */ +}; +#endif /* LWIP_DNS_API_DECLARE_STRUCTS */ + +#define NETDB_ELEM_SIZE (sizeof(struct addrinfo) + sizeof(struct sockaddr_storage) + DNS_MAX_NAME_LENGTH + 1) + +#if LWIP_DNS_API_DECLARE_H_ERRNO +/* application accessible error code set by the DNS API functions */ +extern int h_errno; +#endif /* LWIP_DNS_API_DECLARE_H_ERRNO*/ + +struct hostent *lwip_gethostbyname(const char *name); +int lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf, + size_t buflen, struct hostent **result, int *h_errnop); +void lwip_freeaddrinfo(struct addrinfo *ai); +int lwip_getaddrinfo(const char *nodename, + const char *servname, + const struct addrinfo *hints, + struct addrinfo **res); + +#if LWIP_COMPAT_SOCKETS +/** @ingroup netdbapi */ +#define gethostbyname(name) lwip_gethostbyname(name) +/** @ingroup netdbapi */ +#define gethostbyname_r(name, ret, buf, buflen, result, h_errnop) \ + lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop) +/** @ingroup netdbapi */ +#define freeaddrinfo(addrinfo) lwip_freeaddrinfo(addrinfo) +/** @ingroup netdbapi */ +#define getaddrinfo(nodname, servname, hints, res) \ + lwip_getaddrinfo(nodname, servname, hints, res) +#endif /* LWIP_COMPAT_SOCKETS */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_DNS && LWIP_SOCKET */ + +#endif /* LWIP_HDR_NETDB_H */ diff --git a/middleware/lwip/src/include/lwip/netif.h b/middleware/lwip/src/include/lwip/netif.h new file mode 100644 index 0000000..5ecf8cd --- /dev/null +++ b/middleware/lwip/src/include/lwip/netif.h @@ -0,0 +1,694 @@ +/** + * @file + * netif API (to be used from TCPIP thread) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_NETIF_H +#define LWIP_HDR_NETIF_H + +#include "lwip/opt.h" + +#define ENABLE_LOOPBACK (LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF) + +#include "lwip/err.h" + +#include "lwip/ip_addr.h" + +#include "lwip/def.h" +#include "lwip/pbuf.h" +#include "lwip/stats.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Throughout this file, IP addresses are expected to be in + * the same byte order as in IP_PCB. */ + +/** Must be the maximum of all used hardware address lengths + across all types of interfaces in use. + This does not have to be changed, normally. */ +#ifndef NETIF_MAX_HWADDR_LEN +#define NETIF_MAX_HWADDR_LEN 6U +#endif + +/** The size of a fully constructed netif name which the + * netif can be identified by in APIs. Composed of + * 2 chars, 3 (max) digits, and 1 \0 + */ +#define NETIF_NAMESIZE 6 + +/** + * @defgroup netif_flags Flags + * @ingroup netif + * @{ + */ + +/** Whether the network interface is 'up'. This is + * a software flag used to control whether this network + * interface is enabled and processes traffic. + * It must be set by the startup code before this netif can be used + * (also for dhcp/autoip). + */ +#define NETIF_FLAG_UP 0x01U +/** If set, the netif has broadcast capability. + * Set by the netif driver in its init function. */ +#define NETIF_FLAG_BROADCAST 0x02U +/** If set, the interface has an active link + * (set by the network interface driver). + * Either set by the netif driver in its init function (if the link + * is up at that time) or at a later point once the link comes up + * (if link detection is supported by the hardware). */ +#define NETIF_FLAG_LINK_UP 0x04U +/** If set, the netif is an ethernet device using ARP. + * Set by the netif driver in its init function. + * Used to check input packet types and use of DHCP. */ +#define NETIF_FLAG_ETHARP 0x08U +/** If set, the netif is an ethernet device. It might not use + * ARP or TCP/IP if it is used for PPPoE only. + */ +#define NETIF_FLAG_ETHERNET 0x10U +/** If set, the netif has IGMP capability. + * Set by the netif driver in its init function. */ +#define NETIF_FLAG_IGMP 0x20U +/** If set, the netif has MLD6 capability. + * Set by the netif driver in its init function. */ +#define NETIF_FLAG_MLD6 0x40U + +/** + * @} + */ + +enum lwip_internal_netif_client_data_index +{ +#if LWIP_IPV4 +#if LWIP_DHCP + LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, +#endif +#if LWIP_AUTOIP + LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP, +#endif +#if LWIP_ACD + LWIP_NETIF_CLIENT_DATA_INDEX_ACD, +#endif +#if LWIP_IGMP + LWIP_NETIF_CLIENT_DATA_INDEX_IGMP, +#endif +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 +#if LWIP_IPV6_DHCP6 + LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, +#endif +#if LWIP_IPV6_MLD + LWIP_NETIF_CLIENT_DATA_INDEX_MLD6, +#endif +#endif /* LWIP_IPV6 */ + LWIP_NETIF_CLIENT_DATA_INDEX_MAX +}; + +#if LWIP_CHECKSUM_CTRL_PER_NETIF +#define NETIF_CHECKSUM_GEN_IP 0x0001 +#define NETIF_CHECKSUM_GEN_UDP 0x0002 +#define NETIF_CHECKSUM_GEN_TCP 0x0004 +#define NETIF_CHECKSUM_GEN_ICMP 0x0008 +#define NETIF_CHECKSUM_GEN_ICMP6 0x0010 +#define NETIF_CHECKSUM_CHECK_IP 0x0100 +#define NETIF_CHECKSUM_CHECK_UDP 0x0200 +#define NETIF_CHECKSUM_CHECK_TCP 0x0400 +#define NETIF_CHECKSUM_CHECK_ICMP 0x0800 +#define NETIF_CHECKSUM_CHECK_ICMP6 0x1000 +#define NETIF_CHECKSUM_ENABLE_ALL 0xFFFF +#define NETIF_CHECKSUM_DISABLE_ALL 0x0000 +#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */ + +struct netif; + +/** MAC Filter Actions, these are passed to a netif's igmp_mac_filter or + * mld_mac_filter callback function. */ +enum netif_mac_filter_action { + /** Delete a filter entry */ + NETIF_DEL_MAC_FILTER = 0, + /** Add a filter entry */ + NETIF_ADD_MAC_FILTER = 1 +}; + +/** Function prototype for netif init functions. Set up flags and output/linkoutput + * callback functions in this function. + * + * @param netif The netif to initialize + */ +typedef err_t (*netif_init_fn)(struct netif *netif); +/** Function prototype for netif->input functions. This function is saved as 'input' + * callback function in the netif struct. Call it when a packet has been received. + * + * @param p The received packet, copied into a pbuf + * @param inp The netif which received the packet + * @return ERR_OK if the packet was handled + * != ERR_OK is the packet was NOT handled, in this case, the caller has + * to free the pbuf + */ +typedef err_t (*netif_input_fn)(struct pbuf *p, struct netif *inp); + +#if LWIP_IPV4 +/** Function prototype for netif->output functions. Called by lwIP when a packet + * shall be sent. For ethernet netif, set this to 'etharp_output' and set + * 'linkoutput'. + * + * @param netif The netif which shall send a packet + * @param p The packet to send (p->payload points to IP header) + * @param ipaddr The IP address to which the packet shall be sent + */ +typedef err_t (*netif_output_fn)(struct netif *netif, struct pbuf *p, + const ip4_addr_t *ipaddr); +#endif /* LWIP_IPV4*/ + +#if LWIP_IPV6 +/** Function prototype for netif->output_ip6 functions. Called by lwIP when a packet + * shall be sent. For ethernet netif, set this to 'ethip6_output' and set + * 'linkoutput'. + * + * @param netif The netif which shall send a packet + * @param p The packet to send (p->payload points to IP header) + * @param ipaddr The IPv6 address to which the packet shall be sent + */ +typedef err_t (*netif_output_ip6_fn)(struct netif *netif, struct pbuf *p, + const ip6_addr_t *ipaddr); +#endif /* LWIP_IPV6 */ + +/** Function prototype for netif->linkoutput functions. Only used for ethernet + * netifs. This function is called by ARP when a packet shall be sent. + * + * @param netif The netif which shall send a packet + * @param p The packet to send (raw ethernet packet) + */ +typedef err_t (*netif_linkoutput_fn)(struct netif *netif, struct pbuf *p); +/** Function prototype for netif status- or link-callback functions. */ +typedef void (*netif_status_callback_fn)(struct netif *netif); +#if LWIP_IPV4 && LWIP_IGMP +/** Function prototype for netif igmp_mac_filter functions */ +typedef err_t (*netif_igmp_mac_filter_fn)(struct netif *netif, + const ip4_addr_t *group, enum netif_mac_filter_action action); +#endif /* LWIP_IPV4 && LWIP_IGMP */ +#if LWIP_IPV6 && LWIP_IPV6_MLD +/** Function prototype for netif mld_mac_filter functions */ +typedef err_t (*netif_mld_mac_filter_fn)(struct netif *netif, + const ip6_addr_t *group, enum netif_mac_filter_action action); +#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ + +#if LWIP_DHCP || LWIP_AUTOIP || LWIP_IGMP || LWIP_IPV6_MLD || LWIP_IPV6_DHCP6 || (LWIP_NUM_NETIF_CLIENT_DATA > 0) +#if LWIP_NUM_NETIF_CLIENT_DATA > 0 +u8_t netif_alloc_client_data_id(void); +#endif +/** @ingroup netif_cd + * Set client data. Obtain ID from netif_alloc_client_data_id(). + */ +#define netif_set_client_data(netif, id, data) netif_get_client_data(netif, id) = (data) +/** @ingroup netif_cd + * Get client data. Obtain ID from netif_alloc_client_data_id(). + */ +#define netif_get_client_data(netif, id) (netif)->client_data[(id)] +#endif + +#if (LWIP_IPV4 && LWIP_ARP && (ARP_TABLE_SIZE > 0x7f)) || (LWIP_IPV6 && (LWIP_ND6_NUM_DESTINATIONS > 0x7f)) +typedef u16_t netif_addr_idx_t; +#define NETIF_ADDR_IDX_MAX 0x7FFF +#else +typedef u8_t netif_addr_idx_t; +#define NETIF_ADDR_IDX_MAX 0x7F +#endif + +#if LWIP_NETIF_HWADDRHINT || LWIP_VLAN_PCP + #define LWIP_NETIF_USE_HINTS 1 + struct netif_hint { +#if LWIP_NETIF_HWADDRHINT + u8_t addr_hint; +#endif +#if LWIP_VLAN_PCP + /** VLAN hader is set if this is >= 0 (but must be <= 0xFFFF) */ + s32_t tci; +#endif + }; +#else /* LWIP_NETIF_HWADDRHINT || LWIP_VLAN_PCP */ + #define LWIP_NETIF_USE_HINTS 0 +#endif /* LWIP_NETIF_HWADDRHINT || LWIP_VLAN_PCP*/ + +/** Generic data structure used for all lwIP network interfaces. + * The following fields should be filled in by the initialization + * function for the device driver: hwaddr_len, hwaddr[], mtu, flags */ +struct netif { +#if !LWIP_SINGLE_NETIF + /** pointer to next in linked list */ + struct netif *next; +#endif + +#if LWIP_IPV4 + /** IP address configuration in network byte order */ + ip_addr_t ip_addr; + ip_addr_t netmask; + ip_addr_t gw; +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + /** Array of IPv6 addresses for this netif. */ + ip_addr_t ip6_addr[LWIP_IPV6_NUM_ADDRESSES]; + /** The state of each IPv6 address (Tentative, Preferred, etc). + * @see ip6_addr.h */ + u8_t ip6_addr_state[LWIP_IPV6_NUM_ADDRESSES]; +#if LWIP_IPV6_ADDRESS_LIFETIMES + /** Remaining valid and preferred lifetime of each IPv6 address, in seconds. + * For valid lifetimes, the special value of IP6_ADDR_LIFE_STATIC (0) + * indicates the address is static and has no lifetimes. */ + u32_t ip6_addr_valid_life[LWIP_IPV6_NUM_ADDRESSES]; + u32_t ip6_addr_pref_life[LWIP_IPV6_NUM_ADDRESSES]; +#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */ +#endif /* LWIP_IPV6 */ + /** This function is called by the network device driver + * to pass a packet up the TCP/IP stack. */ + netif_input_fn input; +#if LWIP_IPV4 + /** This function is called by the IP module when it wants + * to send a packet on the interface. This function typically + * first resolves the hardware address, then sends the packet. + * For ethernet physical layer, this is usually etharp_output() */ + netif_output_fn output; +#endif /* LWIP_IPV4 */ + /** This function is called by ethernet_output() when it wants + * to send a packet on the interface. This function outputs + * the pbuf as-is on the link medium. */ + netif_linkoutput_fn linkoutput; +#if LWIP_IPV6 + /** This function is called by the IPv6 module when it wants + * to send a packet on the interface. This function typically + * first resolves the hardware address, then sends the packet. + * For ethernet physical layer, this is usually ethip6_output() */ + netif_output_ip6_fn output_ip6; +#endif /* LWIP_IPV6 */ +#if LWIP_NETIF_STATUS_CALLBACK + /** This function is called when the netif state is set to up or down + */ + netif_status_callback_fn status_callback; +#endif /* LWIP_NETIF_STATUS_CALLBACK */ +#if LWIP_NETIF_LINK_CALLBACK + /** This function is called when the netif link is set to up or down + */ + netif_status_callback_fn link_callback; +#endif /* LWIP_NETIF_LINK_CALLBACK */ +#if LWIP_NETIF_REMOVE_CALLBACK + /** This function is called when the netif has been removed */ + netif_status_callback_fn remove_callback; +#endif /* LWIP_NETIF_REMOVE_CALLBACK */ + /** This field can be set by the device driver and could point + * to state information for the device. */ + void *state; +#ifdef netif_get_client_data + void* client_data[LWIP_NETIF_CLIENT_DATA_INDEX_MAX + LWIP_NUM_NETIF_CLIENT_DATA]; +#endif +#if LWIP_NETIF_HOSTNAME + /* the hostname for this netif, NULL is a valid value */ + const char* hostname; +#endif /* LWIP_NETIF_HOSTNAME */ +#if LWIP_CHECKSUM_CTRL_PER_NETIF + u16_t chksum_flags; +#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF*/ + /** maximum transfer unit (in bytes) */ + u16_t mtu; +#if LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES + /** maximum transfer unit (in bytes), updated by RA */ + u16_t mtu6; +#endif /* LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES */ + /** link level hardware address of this interface */ + u8_t hwaddr[NETIF_MAX_HWADDR_LEN]; + /** number of bytes used in hwaddr */ + u8_t hwaddr_len; + /** flags (@see @ref netif_flags) */ + u8_t flags; + /** descriptive abbreviation */ + char name[2]; + /** number of this interface. Used for @ref if_api and @ref netifapi_netif, + * as well as for IPv6 zones */ + u8_t num; +#if LWIP_IPV6_AUTOCONFIG + /** is this netif enabled for IPv6 autoconfiguration */ + u8_t ip6_autoconfig_enabled; +#endif /* LWIP_IPV6_AUTOCONFIG */ +#if LWIP_IPV6_SEND_ROUTER_SOLICIT + /** Number of Router Solicitation messages that remain to be sent. */ + u8_t rs_count; +#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ +#if MIB2_STATS + /** link type (from "snmp_ifType" enum from snmp_mib2.h) */ + u8_t link_type; + /** (estimate) link speed */ + u32_t link_speed; + /** timestamp at last change made (up/down) */ + u32_t ts; + /** counters */ + struct stats_mib2_netif_ctrs mib2_counters; +#endif /* MIB2_STATS */ +#if LWIP_IPV4 && LWIP_IGMP + /** This function could be called to add or delete an entry in the multicast + filter table of the ethernet MAC.*/ + netif_igmp_mac_filter_fn igmp_mac_filter; +#endif /* LWIP_IPV4 && LWIP_IGMP */ +#if LWIP_IPV6 && LWIP_IPV6_MLD + /** This function could be called to add or delete an entry in the IPv6 multicast + filter table of the ethernet MAC. */ + netif_mld_mac_filter_fn mld_mac_filter; +#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ +#if LWIP_ACD + struct acd *acd_list; +#endif /* LWIP_ACD */ +#if LWIP_NETIF_USE_HINTS + struct netif_hint *hints; +#endif /* LWIP_NETIF_USE_HINTS */ +#if ENABLE_LOOPBACK + /* List of packets to be queued for ourselves. */ + struct pbuf *loop_first; + struct pbuf *loop_last; +#if LWIP_LOOPBACK_MAX_PBUFS + u16_t loop_cnt_current; +#endif /* LWIP_LOOPBACK_MAX_PBUFS */ +#if LWIP_NETIF_LOOPBACK_MULTITHREADING + /* Used if the original scheduling failed. */ + u8_t reschedule_poll; +#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ +#endif /* ENABLE_LOOPBACK */ +}; + +#if LWIP_CHECKSUM_CTRL_PER_NETIF +#define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags) do { \ + (netif)->chksum_flags = chksumflags; } while(0) +#define NETIF_CHECKSUM_ENABLED(netif, chksumflag) (((netif) == NULL) || (((netif)->chksum_flags & (chksumflag)) != 0)) +#define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag) if NETIF_CHECKSUM_ENABLED(netif, chksumflag) +#else /* LWIP_CHECKSUM_CTRL_PER_NETIF */ +#define NETIF_CHECKSUM_ENABLED(netif, chksumflag) 0 +#define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags) +#define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag) +#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */ + +#if LWIP_SINGLE_NETIF +#define NETIF_FOREACH(netif) if (((netif) = netif_default) != NULL) +#else /* LWIP_SINGLE_NETIF */ +/** The list of network interfaces. */ +extern struct netif *netif_list; +#define NETIF_FOREACH(netif) for ((netif) = netif_list; (netif) != NULL; (netif) = (netif)->next) +#endif /* LWIP_SINGLE_NETIF */ +/** The default network interface. */ +extern struct netif *netif_default; + +void netif_init(void); + +struct netif *netif_add_noaddr(struct netif *netif, void *state, netif_init_fn init, netif_input_fn input); + +#if LWIP_IPV4 +struct netif *netif_add(struct netif *netif, + const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw, + void *state, netif_init_fn init, netif_input_fn input); +void netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, + const ip4_addr_t *gw); +#else /* LWIP_IPV4 */ +struct netif *netif_add(struct netif *netif, void *state, netif_init_fn init, netif_input_fn input); +#endif /* LWIP_IPV4 */ +void netif_remove(struct netif * netif); + +/* Returns a network interface given its name. The name is of the form + "et0", where the first two letters are the "name" field in the + netif structure, and the digit is in the num field in the same + structure. */ +struct netif *netif_find(const char *name); + +void netif_set_default(struct netif *netif); + +#if LWIP_IPV4 +void netif_set_ipaddr(struct netif *netif, const ip4_addr_t *ipaddr); +void netif_set_netmask(struct netif *netif, const ip4_addr_t *netmask); +void netif_set_gw(struct netif *netif, const ip4_addr_t *gw); +/** @ingroup netif_ip4 */ +#define netif_ip4_addr(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->ip_addr))) +/** @ingroup netif_ip4 */ +#define netif_ip4_netmask(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->netmask))) +/** @ingroup netif_ip4 */ +#define netif_ip4_gw(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->gw))) +/** @ingroup netif_ip4 */ +#define netif_ip_addr4(netif) ((const ip_addr_t*)&((netif)->ip_addr)) +/** @ingroup netif_ip4 */ +#define netif_ip_netmask4(netif) ((const ip_addr_t*)&((netif)->netmask)) +/** @ingroup netif_ip4 */ +#define netif_ip_gw4(netif) ((const ip_addr_t*)&((netif)->gw)) +#endif /* LWIP_IPV4 */ + +#define netif_set_flags(netif, set_flags) do { (netif)->flags = (u8_t)((netif)->flags | (set_flags)); } while(0) +#define netif_clear_flags(netif, clr_flags) do { (netif)->flags = (u8_t)((netif)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0) +#define netif_is_flag_set(nefif, flag) (((netif)->flags & (flag)) != 0) + +void netif_set_up(struct netif *netif); +void netif_set_down(struct netif *netif); +/** @ingroup netif + * Ask if an interface is up + */ +#define netif_is_up(netif) (((netif)->flags & NETIF_FLAG_UP) ? (u8_t)1 : (u8_t)0) + +#if LWIP_NETIF_STATUS_CALLBACK +void netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback); +#endif /* LWIP_NETIF_STATUS_CALLBACK */ +#if LWIP_NETIF_REMOVE_CALLBACK +void netif_set_remove_callback(struct netif *netif, netif_status_callback_fn remove_callback); +#endif /* LWIP_NETIF_REMOVE_CALLBACK */ + +void netif_set_link_up(struct netif *netif); +void netif_set_link_down(struct netif *netif); +/** Ask if a link is up */ +#define netif_is_link_up(netif) (((netif)->flags & NETIF_FLAG_LINK_UP) ? (u8_t)1 : (u8_t)0) + +#if LWIP_NETIF_LINK_CALLBACK +void netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callback); +#endif /* LWIP_NETIF_LINK_CALLBACK */ + +#if LWIP_NETIF_HOSTNAME +/** @ingroup netif */ +#define netif_set_hostname(netif, name) do { if((netif) != NULL) { (netif)->hostname = name; }}while(0) +/** @ingroup netif */ +#define netif_get_hostname(netif) (((netif) != NULL) ? ((netif)->hostname) : NULL) +#endif /* LWIP_NETIF_HOSTNAME */ + +#if LWIP_IGMP +/** @ingroup netif */ +#define netif_set_igmp_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->igmp_mac_filter = function; }}while(0) +#define netif_get_igmp_mac_filter(netif) (((netif) != NULL) ? ((netif)->igmp_mac_filter) : NULL) +#endif /* LWIP_IGMP */ + +#if LWIP_IPV6 && LWIP_IPV6_MLD +/** @ingroup netif */ +#define netif_set_mld_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->mld_mac_filter = function; }}while(0) +#define netif_get_mld_mac_filter(netif) (((netif) != NULL) ? ((netif)->mld_mac_filter) : NULL) +#define netif_mld_mac_filter(netif, addr, action) do { if((netif) && (netif)->mld_mac_filter) { (netif)->mld_mac_filter((netif), (addr), (action)); }}while(0) +#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ + +#if ENABLE_LOOPBACK +err_t netif_loop_output(struct netif *netif, struct pbuf *p); +void netif_poll(struct netif *netif); +#if !LWIP_NETIF_LOOPBACK_MULTITHREADING +void netif_poll_all(void); +#endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */ +#endif /* ENABLE_LOOPBACK */ + +err_t netif_input(struct pbuf *p, struct netif *inp); + +#if LWIP_IPV6 +/** @ingroup netif_ip6 */ +#define netif_ip_addr6(netif, i) ((const ip_addr_t*)(&((netif)->ip6_addr[i]))) +/** @ingroup netif_ip6 */ +#define netif_ip6_addr(netif, i) ((const ip6_addr_t*)ip_2_ip6(&((netif)->ip6_addr[i]))) +void netif_ip6_addr_set(struct netif *netif, s8_t addr_idx, const ip6_addr_t *addr6); +void netif_ip6_addr_set_parts(struct netif *netif, s8_t addr_idx, u32_t i0, u32_t i1, u32_t i2, u32_t i3); +#define netif_ip6_addr_state(netif, i) ((netif)->ip6_addr_state[i]) +void netif_ip6_addr_set_state(struct netif* netif, s8_t addr_idx, u8_t state); +s8_t netif_get_ip6_addr_match(struct netif *netif, const ip6_addr_t *ip6addr); +void netif_create_ip6_linklocal_address(struct netif *netif, u8_t from_mac_48bit); +err_t netif_add_ip6_address(struct netif *netif, const ip6_addr_t *ip6addr, s8_t *chosen_idx); +#define netif_set_ip6_autoconfig_enabled(netif, action) do { if(netif) { (netif)->ip6_autoconfig_enabled = (action); }}while(0) +#if LWIP_IPV6_ADDRESS_LIFETIMES +#define netif_ip6_addr_valid_life(netif, i) \ + (((netif) != NULL) ? ((netif)->ip6_addr_valid_life[i]) : IP6_ADDR_LIFE_STATIC) +#define netif_ip6_addr_set_valid_life(netif, i, secs) \ + do { if (netif != NULL) { (netif)->ip6_addr_valid_life[i] = (secs); }} while (0) +#define netif_ip6_addr_pref_life(netif, i) \ + (((netif) != NULL) ? ((netif)->ip6_addr_pref_life[i]) : IP6_ADDR_LIFE_STATIC) +#define netif_ip6_addr_set_pref_life(netif, i, secs) \ + do { if (netif != NULL) { (netif)->ip6_addr_pref_life[i] = (secs); }} while (0) +#define netif_ip6_addr_isstatic(netif, i) \ + (netif_ip6_addr_valid_life((netif), (i)) == IP6_ADDR_LIFE_STATIC) +#else /* !LWIP_IPV6_ADDRESS_LIFETIMES */ +#define netif_ip6_addr_isstatic(netif, i) (1) /* all addresses are static */ +#endif /* !LWIP_IPV6_ADDRESS_LIFETIMES */ +#if LWIP_ND6_ALLOW_RA_UPDATES +#define netif_mtu6(netif) ((netif)->mtu6) +#else /* LWIP_ND6_ALLOW_RA_UPDATES */ +#define netif_mtu6(netif) ((netif)->mtu) +#endif /* LWIP_ND6_ALLOW_RA_UPDATES */ +#endif /* LWIP_IPV6 */ + +#if LWIP_NETIF_USE_HINTS +#define NETIF_SET_HINTS(netif, netifhint) (netif)->hints = (netifhint) +#define NETIF_RESET_HINTS(netif) (netif)->hints = NULL +#else /* LWIP_NETIF_USE_HINTS */ +#define NETIF_SET_HINTS(netif, netifhint) +#define NETIF_RESET_HINTS(netif) +#endif /* LWIP_NETIF_USE_HINTS */ + +u8_t netif_name_to_index(const char *name); +char * netif_index_to_name(u8_t idx, char *name); +struct netif* netif_get_by_index(u8_t idx); + +/* Interface indexes always start at 1 per RFC 3493, section 4, num starts at 0 (internal index is 0..254)*/ +#define netif_get_index(netif) ((u8_t)((netif)->num + 1)) +#define NETIF_NO_INDEX (0) + +/** + * @ingroup netif + * Extended netif status callback (NSC) reasons flags. + * May be extended in the future! + */ +typedef u16_t netif_nsc_reason_t; + +/* used for initialization only */ +#define LWIP_NSC_NONE 0x0000 +/** netif was added. arg: NULL. Called AFTER netif was added. */ +#define LWIP_NSC_NETIF_ADDED 0x0001 +/** netif was removed. arg: NULL. Called BEFORE netif is removed. */ +#define LWIP_NSC_NETIF_REMOVED 0x0002 +/** link changed */ +#define LWIP_NSC_LINK_CHANGED 0x0004 +/** netif administrative status changed.
+ * up is called AFTER netif is set up.
+ * down is called BEFORE the netif is actually set down. */ +#define LWIP_NSC_STATUS_CHANGED 0x0008 +/** IPv4 address has changed */ +#define LWIP_NSC_IPV4_ADDRESS_CHANGED 0x0010 +/** IPv4 gateway has changed */ +#define LWIP_NSC_IPV4_GATEWAY_CHANGED 0x0020 +/** IPv4 netmask has changed */ +#define LWIP_NSC_IPV4_NETMASK_CHANGED 0x0040 +/** called AFTER IPv4 address/gateway/netmask changes have been applied */ +#define LWIP_NSC_IPV4_SETTINGS_CHANGED 0x0080 +/** IPv6 address was added */ +#define LWIP_NSC_IPV6_SET 0x0100 +/** IPv6 address state has changed */ +#define LWIP_NSC_IPV6_ADDR_STATE_CHANGED 0x0200 +/** IPv4 settings: valid address set, application may start to communicate */ +#define LWIP_NSC_IPV4_ADDR_VALID 0x0400 + +/** @ingroup netif + * Argument supplied to netif_ext_callback_fn. + */ +typedef union +{ + /** Args to LWIP_NSC_LINK_CHANGED callback */ + struct link_changed_s + { + /** 1: up; 0: down */ + u8_t state; + } link_changed; + /** Args to LWIP_NSC_STATUS_CHANGED callback */ + struct status_changed_s + { + /** 1: up; 0: down */ + u8_t state; + } status_changed; + /** Args to LWIP_NSC_IPV4_ADDRESS_CHANGED|LWIP_NSC_IPV4_GATEWAY_CHANGED|LWIP_NSC_IPV4_NETMASK_CHANGED|LWIP_NSC_IPV4_SETTINGS_CHANGED callback */ + struct ipv4_changed_s + { + /** Old IPv4 address */ + const ip_addr_t* old_address; + const ip_addr_t* old_netmask; + const ip_addr_t* old_gw; + } ipv4_changed; + /** Args to LWIP_NSC_IPV6_SET callback */ + struct ipv6_set_s + { + /** Index of changed IPv6 address */ + s8_t addr_index; + /** Old IPv6 address */ + const ip_addr_t* old_address; + } ipv6_set; + /** Args to LWIP_NSC_IPV6_ADDR_STATE_CHANGED callback */ + struct ipv6_addr_state_changed_s + { + /** Index of affected IPv6 address */ + s8_t addr_index; + /** Old IPv6 address state */ + u8_t old_state; + /** Affected IPv6 address */ + const ip_addr_t* address; + } ipv6_addr_state_changed; +} netif_ext_callback_args_t; + +/** + * @ingroup netif + * Function used for extended netif status callbacks + * Note: When parsing reason argument, keep in mind that more reasons may be added in the future! + * @param netif netif that is affected by change + * @param reason change reason + * @param args depends on reason, see reason description + */ +typedef void (*netif_ext_callback_fn)(struct netif* netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t* args); + +#if LWIP_NETIF_EXT_STATUS_CALLBACK +struct netif_ext_callback; +typedef struct netif_ext_callback +{ + netif_ext_callback_fn callback_fn; + struct netif_ext_callback* next; +} netif_ext_callback_t; + +#define NETIF_DECLARE_EXT_CALLBACK(name) static netif_ext_callback_t name; +void netif_add_ext_callback(netif_ext_callback_t* callback, netif_ext_callback_fn fn); +void netif_remove_ext_callback(netif_ext_callback_t* callback); +void netif_invoke_ext_callback(struct netif* netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t* args); +#else +#define NETIF_DECLARE_EXT_CALLBACK(name) +#define netif_add_ext_callback(callback, fn) +#define netif_remove_ext_callback(callback) +#define netif_invoke_ext_callback(netif, reason, args) +#endif + +#if LWIP_TESTMODE && LWIP_HAVE_LOOPIF +struct netif* netif_get_loopif(void); +#endif + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_NETIF_H */ diff --git a/middleware/lwip/src/include/lwip/netifapi.h b/middleware/lwip/src/include/lwip/netifapi.h new file mode 100644 index 0000000..e063179 --- /dev/null +++ b/middleware/lwip/src/include/lwip/netifapi.h @@ -0,0 +1,161 @@ +/** + * @file + * netif API (to be used from non-TCPIP threads) + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ +#ifndef LWIP_HDR_NETIFAPI_H +#define LWIP_HDR_NETIFAPI_H + +#include "lwip/opt.h" + +#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/sys.h" +#include "lwip/netif.h" +#include "lwip/dhcp.h" +#include "lwip/autoip.h" +#include "lwip/priv/tcpip_priv.h" +#include "lwip/priv/api_msg.h" +#include "lwip/prot/ethernet.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* API for application */ +#if LWIP_ARP && LWIP_IPV4 +/* Used for netfiapi_arp_* APIs */ +enum netifapi_arp_entry { + NETIFAPI_ARP_PERM /* Permanent entry */ + /* Other entry types can be added here */ +}; + +/** @ingroup netifapi_arp */ +err_t netifapi_arp_add(const ip4_addr_t *ipaddr, struct eth_addr *ethaddr, enum netifapi_arp_entry type); +/** @ingroup netifapi_arp */ +err_t netifapi_arp_remove(const ip4_addr_t *ipaddr, enum netifapi_arp_entry type); +#endif /* LWIP_ARP && LWIP_IPV4 */ + +err_t netifapi_netif_add(struct netif *netif, +#if LWIP_IPV4 + const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw, +#endif /* LWIP_IPV4 */ + void *state, netif_init_fn init, netif_input_fn input); + +#if LWIP_IPV4 +err_t netifapi_netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, + const ip4_addr_t *netmask, const ip4_addr_t *gw); +#endif /* LWIP_IPV4*/ + +err_t netifapi_netif_common(struct netif *netif, netifapi_void_fn voidfunc, + netifapi_errt_fn errtfunc); + +/** @ingroup netifapi_netif */ +err_t netifapi_netif_name_to_index(const char *name, u8_t *index); +/** @ingroup netifapi_netif */ +err_t netifapi_netif_index_to_name(u8_t index, char *name); + +/** @ingroup netifapi_netif + * @see netif_remove() + */ +#define netifapi_netif_remove(n) netifapi_netif_common(n, netif_remove, NULL) +/** @ingroup netifapi_netif + * @see netif_set_up() + */ +#define netifapi_netif_set_up(n) netifapi_netif_common(n, netif_set_up, NULL) +/** @ingroup netifapi_netif + * @see netif_set_down() + */ +#define netifapi_netif_set_down(n) netifapi_netif_common(n, netif_set_down, NULL) +/** @ingroup netifapi_netif + * @see netif_set_default() + */ +#define netifapi_netif_set_default(n) netifapi_netif_common(n, netif_set_default, NULL) +/** @ingroup netifapi_netif + * @see netif_set_link_up() + */ +#define netifapi_netif_set_link_up(n) netifapi_netif_common(n, netif_set_link_up, NULL) +/** @ingroup netifapi_netif + * @see netif_set_link_down() + */ +#define netifapi_netif_set_link_down(n) netifapi_netif_common(n, netif_set_link_down, NULL) + +/** + * @defgroup netifapi_dhcp4 DHCPv4 + * @ingroup netifapi + * To be called from non-TCPIP threads + */ +/** @ingroup netifapi_dhcp4 + * @see dhcp_start() + */ +#define netifapi_dhcp_start(n) netifapi_netif_common(n, NULL, dhcp_start) +/** + * @ingroup netifapi_dhcp4 + * @deprecated Use netifapi_dhcp_release_and_stop() instead. + */ +#define netifapi_dhcp_stop(n) netifapi_netif_common(n, dhcp_stop, NULL) +/** @ingroup netifapi_dhcp4 + * @see dhcp_inform() + */ +#define netifapi_dhcp_inform(n) netifapi_netif_common(n, dhcp_inform, NULL) +/** @ingroup netifapi_dhcp4 + * @see dhcp_renew() + */ +#define netifapi_dhcp_renew(n) netifapi_netif_common(n, NULL, dhcp_renew) +/** + * @ingroup netifapi_dhcp4 + * @deprecated Use netifapi_dhcp_release_and_stop() instead. + */ +#define netifapi_dhcp_release(n) netifapi_netif_common(n, NULL, dhcp_release) +/** @ingroup netifapi_dhcp4 + * @see dhcp_release_and_stop() + */ +#define netifapi_dhcp_release_and_stop(n) netifapi_netif_common(n, dhcp_release_and_stop, NULL) + +/** + * @defgroup netifapi_autoip AUTOIP + * @ingroup netifapi + * To be called from non-TCPIP threads + */ +/** @ingroup netifapi_autoip + * @see autoip_start() + */ +#define netifapi_autoip_start(n) netifapi_netif_common(n, NULL, autoip_start) +/** @ingroup netifapi_autoip + * @see autoip_stop() + */ +#define netifapi_autoip_stop(n) netifapi_netif_common(n, NULL, autoip_stop) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_NETIF_API */ + +#endif /* LWIP_HDR_NETIFAPI_H */ diff --git a/middleware/lwip/src/include/lwip/opt.h b/middleware/lwip/src/include/lwip/opt.h new file mode 100644 index 0000000..397d87a --- /dev/null +++ b/middleware/lwip/src/include/lwip/opt.h @@ -0,0 +1,3594 @@ +/** + * @file + * + * lwIP Options Configuration + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +/* + * NOTE: || defined __DOXYGEN__ is a workaround for doxygen bug - + * without this, doxygen does not see the actual #define + */ + +#if !defined LWIP_HDR_OPT_H +#define LWIP_HDR_OPT_H + +/* + * Include user defined options first. Anything not defined in these files + * will be set to standard values. Override anything you don't like! + */ +#include "lwipopts.h" +#include "lwip/debug.h" + +/** + * @defgroup lwip_opts Options (lwipopts.h) + * @ingroup lwip + * + * @defgroup lwip_opts_debug Debugging + * @ingroup lwip_opts + * + * @defgroup lwip_opts_infrastructure Infrastructure + * @ingroup lwip_opts + * + * @defgroup lwip_opts_callback Callback-style APIs + * @ingroup lwip_opts + * + * @defgroup lwip_opts_threadsafe_apis Thread-safe APIs + * @ingroup lwip_opts + */ + + /* + ------------------------------------ + -------------- NO SYS -------------- + ------------------------------------ +*/ +/** + * @defgroup lwip_opts_nosys NO_SYS + * @ingroup lwip_opts_infrastructure + * @{ + */ +/** + * NO_SYS==1: Use lwIP without OS-awareness (no thread, semaphores, mutexes or + * mboxes). This means threaded APIs cannot be used (socket, netconn, + * i.e. everything in the 'api' folder), only the callback-style raw API is + * available (and you have to watch out for yourself that you don't access + * lwIP functions/structures from more than one context at a time!) + */ +#if !defined NO_SYS || defined __DOXYGEN__ +#define NO_SYS 0 +#endif +/** + * @} + */ + +/** + * @defgroup lwip_opts_timers Timers + * @ingroup lwip_opts_infrastructure + * @{ + */ +/** + * LWIP_TIMERS==0: Drop support for sys_timeout and lwip-internal cyclic timers. + * (the array of lwip-internal cyclic timers is still provided) + * (check NO_SYS_NO_TIMERS for compatibility to old versions) + */ +#if !defined LWIP_TIMERS || defined __DOXYGEN__ +#ifdef NO_SYS_NO_TIMERS +#define LWIP_TIMERS (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS)) +#else +#define LWIP_TIMERS 1 +#endif +#endif + +/** + * LWIP_TIMERS_CUSTOM==1: Provide your own timer implementation. + * Function prototypes in timeouts.h and the array of lwip-internal cyclic timers + * are still included, but the implementation is not. The following functions + * will be required: sys_timeouts_init(), sys_timeout(), sys_untimeout(), + * sys_timeouts_mbox_fetch() + */ +#if !defined LWIP_TIMERS_CUSTOM || defined __DOXYGEN__ +#define LWIP_TIMERS_CUSTOM 0 +#endif +/** + * @} + */ + +/** + * @defgroup lwip_opts_memcpy memcpy + * @ingroup lwip_opts_infrastructure + * @{ + */ +/** + * MEMCPY: override this if you have a faster implementation at hand than the + * one included in your C library + */ +#if !defined MEMCPY || defined __DOXYGEN__ +#define MEMCPY(dst,src,len) memcpy(dst,src,len) +#endif + +/** + * SMEMCPY: override this with care! Some compilers (e.g. gcc) can inline a + * call to memcpy() if the length is known at compile time and is small. + */ +#if !defined SMEMCPY || defined __DOXYGEN__ +#define SMEMCPY(dst,src,len) memcpy(dst,src,len) +#endif + +/** + * MEMMOVE: override this if you have a faster implementation at hand than the + * one included in your C library. lwIP currently uses MEMMOVE only when IPv6 + * fragmentation support is enabled. + */ +#if !defined MEMMOVE || defined __DOXYGEN__ +#define MEMMOVE(dst,src,len) memmove(dst,src,len) +#endif +/** + * @} + */ + +/* + ------------------------------------ + ----------- Core locking ----------- + ------------------------------------ +*/ +/** + * @defgroup lwip_opts_lock Core locking and MPU + * @ingroup lwip_opts_infrastructure + * @{ + */ +/** + * LWIP_MPU_COMPATIBLE: enables special memory management mechanism + * which makes lwip able to work on MPU (Memory Protection Unit) system + * by not passing stack-pointers to other threads + * (this decreases performance as memory is allocated from pools instead + * of keeping it on the stack) + */ +#if !defined LWIP_MPU_COMPATIBLE || defined __DOXYGEN__ +#define LWIP_MPU_COMPATIBLE 0 +#endif + +/** + * LWIP_TCPIP_CORE_LOCKING + * Creates a global mutex that is held during TCPIP thread operations. + * Can be locked by client code to perform lwIP operations without changing + * into TCPIP thread using callbacks. See LOCK_TCPIP_CORE() and + * UNLOCK_TCPIP_CORE(). + * Your system should provide mutexes supporting priority inversion to use this. + */ +#if !defined LWIP_TCPIP_CORE_LOCKING || defined __DOXYGEN__ +#define LWIP_TCPIP_CORE_LOCKING 1 +#endif + +/** + * LWIP_TCPIP_CORE_LOCKING_INPUT: when LWIP_TCPIP_CORE_LOCKING is enabled, + * this lets tcpip_input() grab the mutex for input packets as well, + * instead of allocating a message and passing it to tcpip_thread. + * + * ATTENTION: this does not work when tcpip_input() is called from + * interrupt context! + */ +#if !defined LWIP_TCPIP_CORE_LOCKING_INPUT || defined __DOXYGEN__ +#define LWIP_TCPIP_CORE_LOCKING_INPUT 0 +#endif + +/** + * SYS_LIGHTWEIGHT_PROT==1: enable inter-task protection (and task-vs-interrupt + * protection) for certain critical regions during buffer allocation, deallocation + * and memory allocation and deallocation. + * ATTENTION: This is required when using lwIP from more than one context! If + * you disable this, you must be sure what you are doing! + */ +#if !defined SYS_LIGHTWEIGHT_PROT || defined __DOXYGEN__ +#define SYS_LIGHTWEIGHT_PROT 1 +#endif + +/** + * Macro/function to check whether lwIP's threading/locking + * requirements are satisfied during current function call. + * This macro usually calls a function that is implemented in the OS-dependent + * sys layer and performs the following checks: + * - Not in ISR (this should be checked for NO_SYS==1, too!) + * - If @ref LWIP_TCPIP_CORE_LOCKING = 1: TCPIP core lock is held + * - If @ref LWIP_TCPIP_CORE_LOCKING = 0: function is called from TCPIP thread + * @see @ref multithreading + */ +#if !defined LWIP_ASSERT_CORE_LOCKED || defined __DOXYGEN__ +#define LWIP_ASSERT_CORE_LOCKED() +#endif + + +/** + * @} + */ + +/* + ------------------------------------ + ---------- Memory options ---------- + ------------------------------------ +*/ +/** + * @defgroup lwip_opts_mem Heap and memory pools + * @ingroup lwip_opts_infrastructure + * @{ + */ +/** + * MEM_LIBC_MALLOC==1: Use malloc/free/realloc provided by your C-library + * instead of the lwip internal allocator. Can save code size if you + * already use it. + */ +#if !defined MEM_LIBC_MALLOC || defined __DOXYGEN__ +#define MEM_LIBC_MALLOC 0 +#endif + +/** + * MEMP_MEM_MALLOC==1: Use mem_malloc/mem_free instead of the lwip pool allocator. + * Especially useful with MEM_LIBC_MALLOC but handle with care regarding execution + * speed (heap alloc can be much slower than pool alloc) and usage from interrupts + * (especially if your netif driver allocates PBUF_POOL pbufs for received frames + * from interrupt)! + * ATTENTION: Currently, this uses the heap for ALL pools (also for private pools, + * not only for internal pools defined in memp_std.h)! + */ +#if !defined MEMP_MEM_MALLOC || defined __DOXYGEN__ +#define MEMP_MEM_MALLOC 0 +#endif + +/** + * MEMP_MEM_INIT==1: Force use of memset to initialize pool memory. + * Useful if pool are moved in uninitialized section of memory. This will ensure + * default values in pcbs struct are well initialized in all conditions. + */ +#if !defined MEMP_MEM_INIT || defined __DOXYGEN__ +#define MEMP_MEM_INIT 0 +#endif + +/** + * MEM_ALIGNMENT: should be set to the alignment of the CPU + * 4 byte alignment -> \#define MEM_ALIGNMENT 4 + * 2 byte alignment -> \#define MEM_ALIGNMENT 2 + */ +#if !defined MEM_ALIGNMENT || defined __DOXYGEN__ +#define MEM_ALIGNMENT 1 +#endif + +/** + * MEM_SIZE: the size of the heap memory. If the application will send + * a lot of data that needs to be copied, this should be set high. + */ +#if !defined MEM_SIZE || defined __DOXYGEN__ +#define MEM_SIZE 1600 +#endif + +/** + * MEMP_OVERFLOW_CHECK: memp overflow protection reserves a configurable + * amount of bytes before and after each memp element in every pool and fills + * it with a prominent default value. + * MEMP_OVERFLOW_CHECK == 0 no checking + * MEMP_OVERFLOW_CHECK == 1 checks each element when it is freed + * MEMP_OVERFLOW_CHECK >= 2 checks each element in every pool every time + * memp_malloc() or memp_free() is called (useful but slow!) + */ +#if !defined MEMP_OVERFLOW_CHECK || defined __DOXYGEN__ +#define MEMP_OVERFLOW_CHECK 0 +#endif + +/** + * MEMP_SANITY_CHECK==1: run a sanity check after each memp_free() to make + * sure that there are no cycles in the linked lists. + */ +#if !defined MEMP_SANITY_CHECK || defined __DOXYGEN__ +#define MEMP_SANITY_CHECK 0 +#endif + +/** + * MEM_OVERFLOW_CHECK: mem overflow protection reserves a configurable + * amount of bytes before and after each heap allocation chunk and fills + * it with a prominent default value. + * MEM_OVERFLOW_CHECK == 0 no checking + * MEM_OVERFLOW_CHECK == 1 checks each element when it is freed + * MEM_OVERFLOW_CHECK >= 2 checks all heap elements every time + * mem_malloc() or mem_free() is called (useful but slow!) + */ +#if !defined MEM_OVERFLOW_CHECK || defined __DOXYGEN__ +#define MEM_OVERFLOW_CHECK 0 +#endif + +/** + * MEM_SANITY_CHECK==1: run a sanity check after each mem_free() to make + * sure that the linked list of heap elements is not corrupted. + */ +#if !defined MEM_SANITY_CHECK || defined __DOXYGEN__ +#define MEM_SANITY_CHECK 0 +#endif + +/** + * MEM_USE_POOLS==1: Use an alternative to malloc() by allocating from a set + * of memory pools of various sizes. When mem_malloc is called, an element of + * the smallest pool that can provide the length needed is returned. + * To use this, MEMP_USE_CUSTOM_POOLS also has to be enabled. + */ +#if !defined MEM_USE_POOLS || defined __DOXYGEN__ +#define MEM_USE_POOLS 0 +#endif + +/** + * MEM_USE_POOLS_TRY_BIGGER_POOL==1: if one malloc-pool is empty, try the next + * bigger pool - WARNING: THIS MIGHT WASTE MEMORY but it can make a system more + * reliable. */ +#if !defined MEM_USE_POOLS_TRY_BIGGER_POOL || defined __DOXYGEN__ +#define MEM_USE_POOLS_TRY_BIGGER_POOL 0 +#endif + +/** + * MEMP_USE_CUSTOM_POOLS==1: whether to include a user file lwippools.h + * that defines additional pools beyond the "standard" ones required + * by lwIP. If you set this to 1, you must have lwippools.h in your + * include path somewhere. + */ +#if !defined MEMP_USE_CUSTOM_POOLS || defined __DOXYGEN__ +#define MEMP_USE_CUSTOM_POOLS 0 +#endif + +/** + * Set this to 1 if you want to free PBUF_RAM pbufs (or call mem_free()) from + * interrupt context (or another context that doesn't allow waiting for a + * semaphore). + * If set to 1, mem_malloc will be protected by a semaphore and SYS_ARCH_PROTECT, + * while mem_free will only use SYS_ARCH_PROTECT. mem_malloc SYS_ARCH_UNPROTECTs + * with each loop so that mem_free can run. + * + * ATTENTION: As you can see from the above description, this leads to dis-/ + * enabling interrupts often, which can be slow! Also, on low memory, mem_malloc + * can need longer. + * + * If you don't want that, at least for NO_SYS=0, you can still use the following + * functions to enqueue a deallocation call which then runs in the tcpip_thread + * context: + * - pbuf_free_callback(p); + * - mem_free_callback(m); + */ +#if !defined LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT || defined __DOXYGEN__ +#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0 +#endif +/** + * @} + */ + +/* + ------------------------------------------------ + ---------- Internal Memory Pool Sizes ---------- + ------------------------------------------------ +*/ +/** + * @defgroup lwip_opts_memp Internal memory pools + * @ingroup lwip_opts_infrastructure + * @{ + */ +/** + * MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF). + * If the application sends a lot of data out of ROM (or other static memory), + * this should be set high. + */ +#if !defined MEMP_NUM_PBUF || defined __DOXYGEN__ +#define MEMP_NUM_PBUF 16 +#endif + +/** + * MEMP_NUM_RAW_PCB: Number of raw connection PCBs + * (requires the LWIP_RAW option) + */ +#if !defined MEMP_NUM_RAW_PCB || defined __DOXYGEN__ +#define MEMP_NUM_RAW_PCB 4 +#endif + +/** + * MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One + * per active UDP "connection". + * (requires the LWIP_UDP option) + */ +#if !defined MEMP_NUM_UDP_PCB || defined __DOXYGEN__ +#define MEMP_NUM_UDP_PCB 4 +#endif + +/** + * MEMP_NUM_TCP_PCB: the number of simultaneously active TCP connections. + * (requires the LWIP_TCP option) + */ +#if !defined MEMP_NUM_TCP_PCB || defined __DOXYGEN__ +#define MEMP_NUM_TCP_PCB 5 +#endif + +/** + * MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections. + * (requires the LWIP_TCP option) + */ +#if !defined MEMP_NUM_TCP_PCB_LISTEN || defined __DOXYGEN__ +#define MEMP_NUM_TCP_PCB_LISTEN 8 +#endif + +/** + * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments. + * (requires the LWIP_TCP option) + */ +#if !defined MEMP_NUM_TCP_SEG || defined __DOXYGEN__ +#define MEMP_NUM_TCP_SEG 16 +#endif + +/** + * MEMP_NUM_ALTCP_PCB: the number of simultaneously active altcp layer pcbs. + * (requires the LWIP_ALTCP option) + * Connections with multiple layers require more than one altcp_pcb (e.g. TLS + * over TCP requires 2 altcp_pcbs, one for TLS and one for TCP). + */ +#if !defined MEMP_NUM_ALTCP_PCB || defined __DOXYGEN__ +#define MEMP_NUM_ALTCP_PCB MEMP_NUM_TCP_PCB +#endif + +/** + * MEMP_NUM_REASSDATA: the number of IP packets simultaneously queued for + * reassembly (whole packets, not fragments!) + */ +#if !defined MEMP_NUM_REASSDATA || defined __DOXYGEN__ +#define MEMP_NUM_REASSDATA 5 +#endif + +/** + * MEMP_NUM_FRAG_PBUF: the number of IP fragments simultaneously sent + * (fragments, not whole packets!). + * This is only used with LWIP_NETIF_TX_SINGLE_PBUF==0 and only has to be > 1 + * with DMA-enabled MACs where the packet is not yet sent when netif->output + * returns. + */ +#if !defined MEMP_NUM_FRAG_PBUF || defined __DOXYGEN__ +#define MEMP_NUM_FRAG_PBUF 15 +#endif + +/** + * MEMP_NUM_ARP_QUEUE: the number of simultaneously queued outgoing + * packets (pbufs) that are waiting for an ARP request (to resolve + * their destination address) to finish. + * (requires the ARP_QUEUEING option) + */ +#if !defined MEMP_NUM_ARP_QUEUE || defined __DOXYGEN__ +#define MEMP_NUM_ARP_QUEUE 30 +#endif + +/** + * MEMP_NUM_IGMP_GROUP: The number of multicast groups whose network interfaces + * can be members at the same time (one per netif - allsystems group -, plus one + * per netif membership). + * (requires the LWIP_IGMP option) + */ +#if !defined MEMP_NUM_IGMP_GROUP || defined __DOXYGEN__ +#define MEMP_NUM_IGMP_GROUP 8 +#endif + +/** + * The number of sys timeouts used by the core stack (not apps) + * The default number of timeouts is calculated here for all enabled modules. + */ +#define LWIP_NUM_SYS_TIMEOUT_INTERNAL (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (2*LWIP_DHCP) + LWIP_ACD + LWIP_IGMP + LWIP_DNS + PPP_NUM_TIMEOUTS + (LWIP_IPV6 * (1 + LWIP_IPV6_REASS + LWIP_IPV6_MLD + LWIP_IPV6_DHCP6))) + +/** + * MEMP_NUM_SYS_TIMEOUT: the number of simultaneously active timeouts. + * The default number of timeouts is calculated here for all enabled modules. + * The formula expects settings to be either '0' or '1'. + */ +#if !defined MEMP_NUM_SYS_TIMEOUT || defined __DOXYGEN__ +#define MEMP_NUM_SYS_TIMEOUT LWIP_NUM_SYS_TIMEOUT_INTERNAL +#endif + +/** + * MEMP_NUM_NETBUF: the number of struct netbufs. + * (only needed if you use the sequential API, like api_lib.c) + */ +#if !defined MEMP_NUM_NETBUF || defined __DOXYGEN__ +#define MEMP_NUM_NETBUF 2 +#endif + +/** + * MEMP_NUM_NETCONN: the number of struct netconns. + * (only needed if you use the sequential API, like api_lib.c) + */ +#if !defined MEMP_NUM_NETCONN || defined __DOXYGEN__ +#define MEMP_NUM_NETCONN 4 +#endif + +/** + * MEMP_NUM_SELECT_CB: the number of struct lwip_select_cb. + * (Only needed if you have LWIP_MPU_COMPATIBLE==1 and use the socket API. + * In that case, you need one per thread calling lwip_select.) + */ +#if !defined MEMP_NUM_SELECT_CB || defined __DOXYGEN__ +#define MEMP_NUM_SELECT_CB 4 +#endif + +/** + * MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used + * for callback/timeout API communication. + * (only needed if you use tcpip.c) + */ +#if !defined MEMP_NUM_TCPIP_MSG_API || defined __DOXYGEN__ +#define MEMP_NUM_TCPIP_MSG_API 8 +#endif + +/** + * MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used + * for incoming packets. + * (only needed if you use tcpip.c) + */ +#if !defined MEMP_NUM_TCPIP_MSG_INPKT || defined __DOXYGEN__ +#define MEMP_NUM_TCPIP_MSG_INPKT 8 +#endif + +/** + * MEMP_NUM_NETDB: the number of concurrently running lwip_addrinfo() calls + * (before freeing the corresponding memory using lwip_freeaddrinfo()). + */ +#if !defined MEMP_NUM_NETDB || defined __DOXYGEN__ +#define MEMP_NUM_NETDB 1 +#endif + +/** + * MEMP_NUM_LOCALHOSTLIST: the number of host entries in the local host list + * if DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1. + */ +#if !defined MEMP_NUM_LOCALHOSTLIST || defined __DOXYGEN__ +#define MEMP_NUM_LOCALHOSTLIST 1 +#endif + +/** + * PBUF_POOL_SIZE: the number of buffers in the pbuf pool. + */ +#if !defined PBUF_POOL_SIZE || defined __DOXYGEN__ +#define PBUF_POOL_SIZE 16 +#endif + +/** MEMP_NUM_API_MSG: the number of concurrently active calls to various + * socket, netconn, and tcpip functions + */ +#if !defined MEMP_NUM_API_MSG || defined __DOXYGEN__ +#define MEMP_NUM_API_MSG MEMP_NUM_TCPIP_MSG_API +#endif + +/** MEMP_NUM_DNS_API_MSG: the number of concurrently active calls to netconn_gethostbyname + */ +#if !defined MEMP_NUM_DNS_API_MSG || defined __DOXYGEN__ +#define MEMP_NUM_DNS_API_MSG MEMP_NUM_TCPIP_MSG_API +#endif + +/** MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA: the number of concurrently active calls + * to getsockopt/setsockopt + */ +#if !defined MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA || defined __DOXYGEN__ +#define MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA MEMP_NUM_TCPIP_MSG_API +#endif + +/** MEMP_NUM_NETIFAPI_MSG: the number of concurrently active calls to the + * netifapi functions + */ +#if !defined MEMP_NUM_NETIFAPI_MSG || defined __DOXYGEN__ +#define MEMP_NUM_NETIFAPI_MSG MEMP_NUM_TCPIP_MSG_API +#endif +/** + * @} + */ + +/* + --------------------------------- + ---------- ARP options ---------- + --------------------------------- +*/ +/** + * @defgroup lwip_opts_arp ARP + * @ingroup lwip_opts_ipv4 + * @{ + */ +/** + * LWIP_ARP==1: Enable ARP functionality. + */ +#if !defined LWIP_ARP || defined __DOXYGEN__ +#define LWIP_ARP 1 +#endif + +/** + * ARP_TABLE_SIZE: Number of active MAC-IP address pairs cached. + */ +#if !defined ARP_TABLE_SIZE || defined __DOXYGEN__ +#define ARP_TABLE_SIZE 10 +#endif + +/** the time an ARP entry stays valid after its last update, + * for ARP_TMR_INTERVAL = 1000, this is + * (60 * 5) seconds = 5 minutes. + */ +#if !defined ARP_MAXAGE || defined __DOXYGEN__ +#define ARP_MAXAGE 300 +#endif + +/** + * ARP_QUEUEING==1: Multiple outgoing packets are queued during hardware address + * resolution. By default, only the most recent packet is queued per IP address. + * This is sufficient for most protocols and mainly reduces TCP connection + * startup time. Set this to 1 if you know your application sends more than one + * packet in a row to an IP address that is not in the ARP cache. + */ +#if !defined ARP_QUEUEING || defined __DOXYGEN__ +#define ARP_QUEUEING 0 +#endif + +/** The maximum number of packets which may be queued for each + * unresolved address by other network layers. Defaults to 3, 0 means disabled. + * Old packets are dropped, new packets are queued. + */ +#if !defined ARP_QUEUE_LEN || defined __DOXYGEN__ +#define ARP_QUEUE_LEN 3 +#endif + +/** + * ETHARP_SUPPORT_VLAN==1: support receiving and sending ethernet packets with + * VLAN header. See the description of LWIP_HOOK_VLAN_CHECK and + * LWIP_HOOK_VLAN_SET hooks to check/set VLAN headers. + * Additionally, you can define ETHARP_VLAN_CHECK to an u16_t VLAN ID to check. + * If ETHARP_VLAN_CHECK is defined, only VLAN-traffic for this VLAN is accepted. + * If ETHARP_VLAN_CHECK is not defined, all traffic is accepted. + * Alternatively, define a function/define ETHARP_VLAN_CHECK_FN(eth_hdr, vlan) + * that returns 1 to accept a packet or 0 to drop a packet. + */ +#if !defined ETHARP_SUPPORT_VLAN || defined __DOXYGEN__ +#define ETHARP_SUPPORT_VLAN 0 +#endif + +/** + * LWIP_VLAN_PCP==1: Enable outgoing VLAN taggning of frames on a per-PCB basis + * for QoS purposes. With this feature enabled, each PCB has a new variable: "tci". + * (Tag Control Identifier). The TCI contains three fields: VID, CFI and PCP. + * VID is the VLAN ID, which should be set to zero. + * The "CFI" bit is used to enable or disable VLAN tags for the PCB. + * PCP (Priority Code Point) is a 3 bit field used for Ethernet level QoS. + */ +#ifndef LWIP_VLAN_PCP +#define LWIP_VLAN_PCP 0 +#endif + +/** LWIP_ETHERNET==1: enable ethernet support even though ARP might be disabled + */ +#if !defined LWIP_ETHERNET || defined __DOXYGEN__ +#define LWIP_ETHERNET LWIP_ARP +#endif + +/** ETH_PAD_SIZE: number of bytes added before the ethernet header to ensure + * alignment of payload after that header. Since the header is 14 bytes long, + * without this padding e.g. addresses in the IP header will not be aligned + * on a 32-bit boundary, so setting this to 2 can speed up 32-bit-platforms. + */ +#if !defined ETH_PAD_SIZE || defined __DOXYGEN__ +#define ETH_PAD_SIZE 0 +#endif + +/** ETHARP_SUPPORT_STATIC_ENTRIES==1: enable code to support static ARP table + * entries (using etharp_add_static_entry/etharp_remove_static_entry). + */ +#if !defined ETHARP_SUPPORT_STATIC_ENTRIES || defined __DOXYGEN__ +#define ETHARP_SUPPORT_STATIC_ENTRIES 0 +#endif + +/** ETHARP_TABLE_MATCH_NETIF==1: Match netif for ARP table entries. + * If disabled, duplicate IP address on multiple netifs are not supported + * (but this should only occur for AutoIP). + */ +#if !defined ETHARP_TABLE_MATCH_NETIF || defined __DOXYGEN__ +#define ETHARP_TABLE_MATCH_NETIF !LWIP_SINGLE_NETIF +#endif +/** + * @} + */ + +/* + -------------------------------- + ---------- IP options ---------- + -------------------------------- +*/ +/** + * @defgroup lwip_opts_ipv4 IPv4 + * @ingroup lwip_opts + * @{ + */ +/** + * LWIP_IPV4==1: Enable IPv4 + */ +#if !defined LWIP_IPV4 || defined __DOXYGEN__ +#define LWIP_IPV4 1 +#endif + +/** + * IP_FORWARD==1: Enables the ability to forward IP packets across network + * interfaces. If you are going to run lwIP on a device with only one network + * interface, define this to 0. + */ +#if !defined IP_FORWARD || defined __DOXYGEN__ +#define IP_FORWARD 0 +#endif + +/** + * IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that + * this option does not affect outgoing packet sizes, which can be controlled + * via IP_FRAG. + */ +#if !defined IP_REASSEMBLY || defined __DOXYGEN__ +#define IP_REASSEMBLY 1 +#endif + +/** + * IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note + * that this option does not affect incoming packet sizes, which can be + * controlled via IP_REASSEMBLY. + */ +#if !defined IP_FRAG || defined __DOXYGEN__ +#define IP_FRAG 1 +#endif + +#if !LWIP_IPV4 +/* disable IPv4 extensions when IPv4 is disabled */ +#undef IP_FORWARD +#define IP_FORWARD 0 +#undef IP_REASSEMBLY +#define IP_REASSEMBLY 0 +#undef IP_FRAG +#define IP_FRAG 0 +#endif /* !LWIP_IPV4 */ + +/** + * IP_OPTIONS_ALLOWED: Defines the behavior for IP options. + * IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped. + * IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed). + */ +#if !defined IP_OPTIONS_ALLOWED || defined __DOXYGEN__ +#define IP_OPTIONS_ALLOWED 1 +#endif + +/** + * IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally) + * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived + * in this time, the whole packet is discarded. + */ +#if !defined IP_REASS_MAXAGE || defined __DOXYGEN__ +#define IP_REASS_MAXAGE 15 +#endif + +/** + * IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled. + * Since the received pbufs are enqueued, be sure to configure + * PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive + * packets even if the maximum amount of fragments is enqueued for reassembly! + * When IPv4 *and* IPv6 are enabled, this even changes to + * (PBUF_POOL_SIZE > 2 * IP_REASS_MAX_PBUFS)! + */ +#if !defined IP_REASS_MAX_PBUFS || defined __DOXYGEN__ +#define IP_REASS_MAX_PBUFS 10 +#endif + +/** + * IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers. + */ +#if !defined IP_DEFAULT_TTL || defined __DOXYGEN__ +#define IP_DEFAULT_TTL 255 +#endif + +/** + * IP_SOF_BROADCAST=1: Use the SOF_BROADCAST field to enable broadcast + * filter per pcb on udp and raw send operations. To enable broadcast filter + * on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1. + */ +#if !defined IP_SOF_BROADCAST || defined __DOXYGEN__ +#define IP_SOF_BROADCAST 0 +#endif + +/** + * IP_SOF_BROADCAST_RECV (requires IP_SOF_BROADCAST=1) enable the broadcast + * filter on recv operations. + */ +#if !defined IP_SOF_BROADCAST_RECV || defined __DOXYGEN__ +#define IP_SOF_BROADCAST_RECV 0 +#endif + +/** + * IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1: allow ip_forward() to send packets back + * out on the netif where it was received. This should only be used for + * wireless networks. + * ATTENTION: When this is 1, make sure your netif driver correctly marks incoming + * link-layer-broadcast/multicast packets as such using the corresponding pbuf flags! + */ +#if !defined IP_FORWARD_ALLOW_TX_ON_RX_NETIF || defined __DOXYGEN__ +#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0 +#endif +/** + * @} + */ + +/* + ---------------------------------- + ---------- ICMP options ---------- + ---------------------------------- +*/ +/** + * @defgroup lwip_opts_icmp ICMP + * @ingroup lwip_opts_ipv4 + * @{ + */ +/** + * LWIP_ICMP==1: Enable ICMP module inside the IP stack. + * Be careful, disable that make your product non-compliant to RFC1122 + */ +#if !defined LWIP_ICMP || defined __DOXYGEN__ +#define LWIP_ICMP 1 +#endif + +/** + * ICMP_TTL: Default value for Time-To-Live used by ICMP packets. + */ +#if !defined ICMP_TTL || defined __DOXYGEN__ +#define ICMP_TTL IP_DEFAULT_TTL +#endif + +/** + * LWIP_BROADCAST_PING==1: respond to broadcast pings (default is unicast only) + */ +#if !defined LWIP_BROADCAST_PING || defined __DOXYGEN__ +#define LWIP_BROADCAST_PING 0 +#endif + +/** + * LWIP_MULTICAST_PING==1: respond to multicast pings (default is unicast only) + */ +#if !defined LWIP_MULTICAST_PING || defined __DOXYGEN__ +#define LWIP_MULTICAST_PING 0 +#endif +/** + * @} + */ + +/* + --------------------------------- + ---------- RAW options ---------- + --------------------------------- +*/ +/** + * @defgroup lwip_opts_raw RAW + * @ingroup lwip_opts_callback + * @{ + */ +/** + * LWIP_RAW==1: Enable application layer to hook into the IP layer itself. + */ +#if !defined LWIP_RAW || defined __DOXYGEN__ +#define LWIP_RAW 0 +#endif + +/** + * LWIP_RAW==1: Enable application layer to hook into the IP layer itself. + */ +#if !defined RAW_TTL || defined __DOXYGEN__ +#define RAW_TTL IP_DEFAULT_TTL +#endif +/** + * @} + */ + +/* + ---------------------------------- + ---------- DHCP options ---------- + ---------------------------------- +*/ +/** + * @defgroup lwip_opts_dhcp DHCP + * @ingroup lwip_opts_ipv4 + * @{ + */ +/** + * LWIP_DHCP==1: Enable DHCP module. + */ +#if !defined LWIP_DHCP || defined __DOXYGEN__ +#define LWIP_DHCP 0 +#endif +#if !LWIP_IPV4 +/* disable DHCP when IPv4 is disabled */ +#undef LWIP_DHCP +#define LWIP_DHCP 0 +#endif /* !LWIP_IPV4 */ + +/** + * LWIP_DHCP_DOES_ACD_CHECK==1: Perform address conflict detection on the dhcp address. + */ +#if !defined LWIP_DHCP_DOES_ACD_CHECK || defined __DOXYGEN__ +#define LWIP_DHCP_DOES_ACD_CHECK LWIP_DHCP +#endif + +/** + * LWIP_DHCP_BOOTP_FILE==1: Store offered_si_addr and boot_file_name. + */ +#if !defined LWIP_DHCP_BOOTP_FILE || defined __DOXYGEN__ +#define LWIP_DHCP_BOOTP_FILE 0 +#endif + +/** + * LWIP_DHCP_GETS_NTP==1: Request NTP servers with discover/select. For each + * response packet, an callback is called, which has to be provided by the port: + * void dhcp_set_ntp_servers(u8_t num_ntp_servers, ip_addr_t* ntp_server_addrs); +*/ +#if !defined LWIP_DHCP_GET_NTP_SRV || defined __DOXYGEN__ +#define LWIP_DHCP_GET_NTP_SRV 0 +#endif + +/** + * The maximum of NTP servers requested + */ +#if !defined LWIP_DHCP_MAX_NTP_SERVERS || defined __DOXYGEN__ +#define LWIP_DHCP_MAX_NTP_SERVERS 1 +#endif + +/** + * LWIP_DHCP_MAX_DNS_SERVERS > 0: Request DNS servers with discover/select. + * DNS servers received in the response are passed to DNS via @ref dns_setserver() + * (up to the maximum limit defined here). + */ +#if !defined LWIP_DHCP_MAX_DNS_SERVERS || defined __DOXYGEN__ +#define LWIP_DHCP_MAX_DNS_SERVERS DNS_MAX_SERVERS +#endif +/** + * @} + */ + +/* + ------------------------------------ + ---------- AUTOIP options ---------- + ------------------------------------ +*/ +/** + * @defgroup lwip_opts_autoip AUTOIP + * @ingroup lwip_opts_ipv4 + * @{ + */ +/** + * LWIP_AUTOIP==1: Enable AUTOIP module. + */ +#if !defined LWIP_AUTOIP || defined __DOXYGEN__ +#define LWIP_AUTOIP 0 +#endif +#if !LWIP_IPV4 +/* disable AUTOIP when IPv4 is disabled */ +#undef LWIP_AUTOIP +#define LWIP_AUTOIP 0 +#endif /* !LWIP_IPV4 */ + +/** + * LWIP_DHCP_AUTOIP_COOP==1: Allow DHCP and AUTOIP to be both enabled on + * the same interface at the same time. + */ +#if !defined LWIP_DHCP_AUTOIP_COOP || defined __DOXYGEN__ +#define LWIP_DHCP_AUTOIP_COOP 0 +#endif + +/** + * LWIP_DHCP_AUTOIP_COOP_TRIES: Set to the number of DHCP DISCOVER probes + * that should be sent before falling back on AUTOIP (the DHCP client keeps + * running in this case). This can be set as low as 1 to get an AutoIP address + * very quickly, but you should be prepared to handle a changing IP address + * when DHCP overrides AutoIP. + */ +#if !defined LWIP_DHCP_AUTOIP_COOP_TRIES || defined __DOXYGEN__ +#define LWIP_DHCP_AUTOIP_COOP_TRIES 9 +#endif +/** + * @} + */ + +/* + ------------------------------------ + ----------- ACD options ------------ + ------------------------------------ +*/ +/** + * @defgroup lwip_opts_acd ACD + * @ingroup lwip_opts_ipv4 + * @{ + */ + /** + * LWIP_ACD==1: Enable ACD module. ACD module is needed when using AUTOIP. + */ +#if !defined LWIP_ACD || defined __DOXYGEN__ +#define LWIP_ACD (LWIP_AUTOIP || LWIP_DHCP_DOES_ACD_CHECK) +#endif +#if !LWIP_IPV4 +/* disable ACD when IPv4 is disabled */ +#undef LWIP_ACD +#define LWIP_ACD 0 +#endif /* !LWIP_IPV4 */ +/** + * @} + */ + +/* + ---------------------------------- + ----- SNMP MIB2 support ----- + ---------------------------------- +*/ +/** + * @defgroup lwip_opts_mib2 SNMP MIB2 callbacks + * @ingroup lwip_opts_infrastructure + * @{ + */ +/** + * LWIP_MIB2_CALLBACKS==1: Turn on SNMP MIB2 callbacks. + * Turn this on to get callbacks needed to implement MIB2. + * Usually MIB2_STATS should be enabled, too. + */ +#if !defined LWIP_MIB2_CALLBACKS || defined __DOXYGEN__ +#define LWIP_MIB2_CALLBACKS 0 +#endif +/** + * @} + */ + +/* + ---------------------------------- + -------- Multicast options ------- + ---------------------------------- +*/ +/** + * @defgroup lwip_opts_multicast Multicast + * @ingroup lwip_opts_infrastructure + * @{ + */ +/** + * LWIP_MULTICAST_TX_OPTIONS==1: Enable multicast TX support like the socket options + * IP_MULTICAST_TTL/IP_MULTICAST_IF/IP_MULTICAST_LOOP, as well as (currently only) + * core support for the corresponding IPv6 options. + */ +#if !defined LWIP_MULTICAST_TX_OPTIONS || defined __DOXYGEN__ +#define LWIP_MULTICAST_TX_OPTIONS ((LWIP_IGMP || LWIP_IPV6_MLD) && (LWIP_UDP || LWIP_RAW)) +#endif +/** + * @} + */ + +/* + ---------------------------------- + ---------- IGMP options ---------- + ---------------------------------- +*/ +/** + * @defgroup lwip_opts_igmp IGMP + * @ingroup lwip_opts_ipv4 + * @{ + */ +/** + * LWIP_IGMP==1: Turn on IGMP module. + */ +#if !defined LWIP_IGMP || defined __DOXYGEN__ +#define LWIP_IGMP 0 +#endif +#if !LWIP_IPV4 +#undef LWIP_IGMP +#define LWIP_IGMP 0 +#endif +/** + * @} + */ + +/* + ---------------------------------- + ---------- DNS options ----------- + ---------------------------------- +*/ +/** + * @defgroup lwip_opts_dns DNS + * @ingroup lwip_opts_callback + * @{ + */ +/** + * LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS + * transport. + */ +#if !defined LWIP_DNS || defined __DOXYGEN__ +#define LWIP_DNS 0 +#endif + +/** DNS maximum number of entries to maintain locally. */ +#if !defined DNS_TABLE_SIZE || defined __DOXYGEN__ +#define DNS_TABLE_SIZE 4 +#endif + +/** DNS maximum host name length supported in the name table. */ +#if !defined DNS_MAX_NAME_LENGTH || defined __DOXYGEN__ +#define DNS_MAX_NAME_LENGTH 256 +#endif + +/** The maximum of DNS servers + * The first server can be initialized automatically by defining + * DNS_SERVER_ADDRESS(ipaddr), where 'ipaddr' is an 'ip_addr_t*' + */ +#if !defined DNS_MAX_SERVERS || defined __DOXYGEN__ +#define DNS_MAX_SERVERS 2 +#endif + +/** DNS maximum number of retries when asking for a name, before "timeout". */ +#if !defined DNS_MAX_RETRIES || defined __DOXYGEN__ +#define DNS_MAX_RETRIES 4 +#endif + +/** DNS do a name checking between the query and the response. */ +#if !defined DNS_DOES_NAME_CHECK || defined __DOXYGEN__ +#define DNS_DOES_NAME_CHECK 1 +#endif + +/** LWIP_DNS_SECURE: controls the security level of the DNS implementation + * Use all DNS security features by default. + * This is overridable but should only be needed by very small targets + * or when using against non standard DNS servers. */ +#if !defined LWIP_DNS_SECURE || defined __DOXYGEN__ +#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT) +#endif + +/* A list of DNS security features follows */ +#define LWIP_DNS_SECURE_RAND_XID 1 +#define LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING 2 +#define LWIP_DNS_SECURE_RAND_SRC_PORT 4 + +/** DNS_LOCAL_HOSTLIST: Implements a local host-to-address list. If enabled, you have to define an initializer: + * \#define DNS_LOCAL_HOSTLIST_INIT {DNS_LOCAL_HOSTLIST_ELEM("host_ip4", IPADDR4_INIT_BYTES(1,2,3,4)), \ + * DNS_LOCAL_HOSTLIST_ELEM("host_ip6", IPADDR6_INIT_HOST(123, 234, 345, 456)} + * + * Instead, you can also use an external function: + * \#define DNS_LOOKUP_LOCAL_EXTERN(name, namelen, addr, dns_addrtype) my_lookup_function(name, namelen, addr, dns_addrtype) + * with function signature: + * extern err_t my_lookup_function(const char *name, size_t namelen, ip_addr_t *addr, u8_t dns_addrtype) + * that looks up the IP address and returns ERR_OK if found (LWIP_DNS_ADDRTYPE_xxx is passed in dns_addrtype). + */ +#if !defined DNS_LOCAL_HOSTLIST || defined __DOXYGEN__ +#define DNS_LOCAL_HOSTLIST 0 +#endif /* DNS_LOCAL_HOSTLIST */ + +/** If this is turned on, the local host-list can be dynamically changed + * at runtime. */ +#if !defined DNS_LOCAL_HOSTLIST_IS_DYNAMIC || defined __DOXYGEN__ +#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0 +#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ + +/** Set this to 1 to enable querying ".local" names via mDNS + * using a One-Shot Multicast DNS Query */ +#if !defined LWIP_DNS_SUPPORT_MDNS_QUERIES || defined __DOXYGEN__ +#define LWIP_DNS_SUPPORT_MDNS_QUERIES 0 +#endif +/** + * @} + */ + +/* + --------------------------------- + ---------- UDP options ---------- + --------------------------------- +*/ +/** + * @defgroup lwip_opts_udp UDP + * @ingroup lwip_opts_callback + * @{ + */ +/** + * LWIP_UDP==1: Turn on UDP. + */ +#if !defined LWIP_UDP || defined __DOXYGEN__ +#define LWIP_UDP 1 +#endif + +/** + * LWIP_UDPLITE==1: Turn on UDP-Lite. (Requires LWIP_UDP) + */ +#if !defined LWIP_UDPLITE || defined __DOXYGEN__ +#define LWIP_UDPLITE 0 +#endif + +/** + * UDP_TTL: Default Time-To-Live value. + */ +#if !defined UDP_TTL || defined __DOXYGEN__ +#define UDP_TTL IP_DEFAULT_TTL +#endif + +/** + * LWIP_NETBUF_RECVINFO==1: append destination addr and port to every netbuf. + */ +#if !defined LWIP_NETBUF_RECVINFO || defined __DOXYGEN__ +#define LWIP_NETBUF_RECVINFO 0 +#endif +/** + * @} + */ + +/* + --------------------------------- + ---------- TCP options ---------- + --------------------------------- +*/ +/** + * @defgroup lwip_opts_tcp TCP + * @ingroup lwip_opts_callback + * @{ + */ +/** + * LWIP_TCP==1: Turn on TCP. + */ +#if !defined LWIP_TCP || defined __DOXYGEN__ +#define LWIP_TCP 1 +#endif + +/** + * TCP_TTL: Default Time-To-Live value. + */ +#if !defined TCP_TTL || defined __DOXYGEN__ +#define TCP_TTL IP_DEFAULT_TTL +#endif + +/** + * TCP_WND: The size of a TCP window. This must be at least + * (2 * TCP_MSS) for things to work well. + * ATTENTION: when using TCP_RCV_SCALE, TCP_WND is the total size + * with scaling applied. Maximum window value in the TCP header + * will be TCP_WND >> TCP_RCV_SCALE + */ +#if !defined TCP_WND || defined __DOXYGEN__ +#define TCP_WND (4 * TCP_MSS) +#endif + +/** + * TCP_MAXRTX: Maximum number of retransmissions of data segments. + */ +#if !defined TCP_MAXRTX || defined __DOXYGEN__ +#define TCP_MAXRTX 12 +#endif + +/** + * TCP_SYNMAXRTX: Maximum number of retransmissions of SYN segments. + */ +#if !defined TCP_SYNMAXRTX || defined __DOXYGEN__ +#define TCP_SYNMAXRTX 6 +#endif + +/** + * TCP_QUEUE_OOSEQ==1: TCP will queue segments that arrive out of order. + * Define to 0 if your device is low on memory. + */ +#if !defined TCP_QUEUE_OOSEQ || defined __DOXYGEN__ +#define TCP_QUEUE_OOSEQ LWIP_TCP +#endif + +/** + * LWIP_TCP_SACK_OUT==1: TCP will support sending selective acknowledgements (SACKs). + */ +#if !defined LWIP_TCP_SACK_OUT || defined __DOXYGEN__ +#define LWIP_TCP_SACK_OUT 0 +#endif + +/** + * LWIP_TCP_MAX_SACK_NUM: The maximum number of SACK values to include in TCP segments. + * Must be at least 1, but is only used if LWIP_TCP_SACK_OUT is enabled. + * NOTE: Even though we never send more than 3 or 4 SACK ranges in a single segment + * (depending on other options), setting this option to values greater than 4 is not pointless. + * This is basically the max number of SACK ranges we want to keep track of. + * As new data is delivered, some of the SACK ranges may be removed or merged. + * In that case some of those older SACK ranges may be used again. + * The amount of memory used to store SACK ranges is LWIP_TCP_MAX_SACK_NUM * 8 bytes for each TCP PCB. + */ +#if !defined LWIP_TCP_MAX_SACK_NUM || defined __DOXYGEN__ +#define LWIP_TCP_MAX_SACK_NUM 4 +#endif + +/** + * TCP_MSS: TCP Maximum segment size. (default is 536, a conservative default, + * you might want to increase this.) + * For the receive side, this MSS is advertised to the remote side + * when opening a connection. For the transmit size, this MSS sets + * an upper limit on the MSS advertised by the remote host. + */ +#if !defined TCP_MSS || defined __DOXYGEN__ +#define TCP_MSS 536 +#endif + +/** + * TCP_CALCULATE_EFF_SEND_MSS: "The maximum size of a segment that TCP really + * sends, the 'effective send MSS,' MUST be the smaller of the send MSS (which + * reflects the available reassembly buffer size at the remote host) and the + * largest size permitted by the IP layer" (RFC 1122) + * Setting this to 1 enables code that checks TCP_MSS against the MTU of the + * netif used for a connection and limits the MSS if it would be too big otherwise. + */ +#if !defined TCP_CALCULATE_EFF_SEND_MSS || defined __DOXYGEN__ +#define TCP_CALCULATE_EFF_SEND_MSS 1 +#endif + + +/** + * TCP_SND_BUF: TCP sender buffer space (bytes). + * To achieve good performance, this should be at least 2 * TCP_MSS. + */ +#if !defined TCP_SND_BUF || defined __DOXYGEN__ +#define TCP_SND_BUF (2 * TCP_MSS) +#endif + +/** + * TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least + * as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work. + */ +#if !defined TCP_SND_QUEUELEN || defined __DOXYGEN__ +#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS)) +#endif + +/** + * TCP_SNDLOWAT: TCP writable space (bytes). This must be less than + * TCP_SND_BUF. It is the amount of space which must be available in the + * TCP snd_buf for select to return writable (combined with TCP_SNDQUEUELOWAT). + */ +#if !defined TCP_SNDLOWAT || defined __DOXYGEN__ +#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1) +#endif + +/** + * TCP_SNDQUEUELOWAT: TCP writable bufs (pbuf count). This must be less + * than TCP_SND_QUEUELEN. If the number of pbufs queued on a pcb drops below + * this number, select returns writable (combined with TCP_SNDLOWAT). + */ +#if !defined TCP_SNDQUEUELOWAT || defined __DOXYGEN__ +#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5) +#endif + +/** + * TCP_OOSEQ_MAX_BYTES: The default maximum number of bytes queued on ooseq per + * pcb if TCP_OOSEQ_BYTES_LIMIT is not defined. Default is 0 (no limit). + * Only valid for TCP_QUEUE_OOSEQ==1. + */ +#if !defined TCP_OOSEQ_MAX_BYTES || defined __DOXYGEN__ +#define TCP_OOSEQ_MAX_BYTES 0 +#endif + +/** + * TCP_OOSEQ_BYTES_LIMIT(pcb): Return the maximum number of bytes to be queued + * on ooseq per pcb, given the pcb. Only valid for TCP_QUEUE_OOSEQ==1 && + * TCP_OOSEQ_MAX_BYTES==1. + * Use this to override TCP_OOSEQ_MAX_BYTES to a dynamic value per pcb. + */ +#if !defined TCP_OOSEQ_BYTES_LIMIT +#if TCP_OOSEQ_MAX_BYTES +#define TCP_OOSEQ_BYTES_LIMIT(pcb) TCP_OOSEQ_MAX_BYTES +#elif defined __DOXYGEN__ +#define TCP_OOSEQ_BYTES_LIMIT(pcb) +#endif +#endif + +/** + * TCP_OOSEQ_MAX_PBUFS: The default maximum number of pbufs queued on ooseq per + * pcb if TCP_OOSEQ_BYTES_LIMIT is not defined. Default is 0 (no limit). + * Only valid for TCP_QUEUE_OOSEQ==1. + */ +#if !defined TCP_OOSEQ_MAX_PBUFS || defined __DOXYGEN__ +#define TCP_OOSEQ_MAX_PBUFS 0 +#endif + +/** + * TCP_OOSEQ_PBUFS_LIMIT(pcb): Return the maximum number of pbufs to be queued + * on ooseq per pcb, given the pcb. Only valid for TCP_QUEUE_OOSEQ==1 && + * TCP_OOSEQ_MAX_PBUFS==1. + * Use this to override TCP_OOSEQ_MAX_PBUFS to a dynamic value per pcb. + */ +#if !defined TCP_OOSEQ_PBUFS_LIMIT +#if TCP_OOSEQ_MAX_PBUFS +#define TCP_OOSEQ_PBUFS_LIMIT(pcb) TCP_OOSEQ_MAX_PBUFS +#elif defined __DOXYGEN__ +#define TCP_OOSEQ_PBUFS_LIMIT(pcb) +#endif +#endif + +/** + * TCP_LISTEN_BACKLOG: Enable the backlog option for tcp listen pcb. + */ +#if !defined TCP_LISTEN_BACKLOG || defined __DOXYGEN__ +#define TCP_LISTEN_BACKLOG 0 +#endif + +/** + * The maximum allowed backlog for TCP listen netconns. + * This backlog is used unless another is explicitly specified. + * 0xff is the maximum (u8_t). + */ +#if !defined TCP_DEFAULT_LISTEN_BACKLOG || defined __DOXYGEN__ +#define TCP_DEFAULT_LISTEN_BACKLOG 0xff +#endif + +/** + * TCP_OVERSIZE: The maximum number of bytes that tcp_write may + * allocate ahead of time in an attempt to create shorter pbuf chains + * for transmission. The meaningful range is 0 to TCP_MSS. Some + * suggested values are: + * + * 0: Disable oversized allocation. Each tcp_write() allocates a new + pbuf (old behaviour). + * 1: Allocate size-aligned pbufs with minimal excess. Use this if your + * scatter-gather DMA requires aligned fragments. + * 128: Limit the pbuf/memory overhead to 20%. + * TCP_MSS: Try to create unfragmented TCP packets. + * TCP_MSS/4: Try to create 4 fragments or less per TCP packet. + */ +#if !defined TCP_OVERSIZE || defined __DOXYGEN__ +#define TCP_OVERSIZE TCP_MSS +#endif + +/** + * LWIP_TCP_TIMESTAMPS==1: support the TCP timestamp option. + * The timestamp option is currently only used to help remote hosts, it is not + * really used locally. Therefore, it is only enabled when a TS option is + * received in the initial SYN packet from a remote host. + */ +#if !defined LWIP_TCP_TIMESTAMPS || defined __DOXYGEN__ +#define LWIP_TCP_TIMESTAMPS 0 +#endif + +/** + * TCP_WND_UPDATE_THRESHOLD: difference in window to trigger an + * explicit window update + */ +#if !defined TCP_WND_UPDATE_THRESHOLD || defined __DOXYGEN__ +#define TCP_WND_UPDATE_THRESHOLD LWIP_MIN((TCP_WND / 4), (TCP_MSS * 4)) +#endif + +/** + * LWIP_EVENT_API and LWIP_CALLBACK_API: Only one of these should be set to 1. + * LWIP_EVENT_API==1: The user defines lwip_tcp_event() to receive all + * events (accept, sent, etc) that happen in the system. + * LWIP_CALLBACK_API==1: The PCB callback function is called directly + * for the event. This is the default. + */ +#if !defined(LWIP_EVENT_API) && !defined(LWIP_CALLBACK_API) || defined __DOXYGEN__ +#define LWIP_EVENT_API 0 +#define LWIP_CALLBACK_API 1 +#else +#ifndef LWIP_EVENT_API +#define LWIP_EVENT_API 0 +#endif +#ifndef LWIP_CALLBACK_API +#define LWIP_CALLBACK_API 0 +#endif +#endif + +/** + * LWIP_WND_SCALE and TCP_RCV_SCALE: + * Set LWIP_WND_SCALE to 1 to enable window scaling. + * Set TCP_RCV_SCALE to the desired scaling factor (shift count in the + * range of [0..14]). + * When LWIP_WND_SCALE is enabled but TCP_RCV_SCALE is 0, we can use a large + * send window while having a small receive window only. + */ +#if !defined LWIP_WND_SCALE || defined __DOXYGEN__ +#define LWIP_WND_SCALE 0 +#define TCP_RCV_SCALE 0 +#endif + +/** + * LWIP_TCP_PCB_NUM_EXT_ARGS: + * When this is > 0, every tcp pcb (including listen pcb) includes a number of + * additional argument entries in an array (see tcp_ext_arg_alloc_id) + */ +#if !defined LWIP_TCP_PCB_NUM_EXT_ARGS || defined __DOXYGEN__ +#define LWIP_TCP_PCB_NUM_EXT_ARGS 0 +#endif + +/** LWIP_ALTCP==1: enable the altcp API. + * altcp is an abstraction layer that prevents applications linking against the + * tcp.h functions but provides the same functionality. It is used to e.g. add + * SSL/TLS or proxy-connect support to an application written for the tcp callback + * API without that application knowing the protocol details. + * + * With LWIP_ALTCP==0, applications written against the altcp API can still be + * compiled but are directly linked against the tcp.h callback API and then + * cannot use layered protocols. + * + * See @ref altcp_api + */ +#if !defined LWIP_ALTCP || defined __DOXYGEN__ +#define LWIP_ALTCP 0 +#endif + +/** LWIP_ALTCP_TLS==1: enable TLS support for altcp API. + * This needs a port of the functions in altcp_tls.h to a TLS library. + * A port to ARM mbedtls is provided with lwIP, see apps/altcp_tls/ directory + * and LWIP_ALTCP_TLS_MBEDTLS option. + */ +#if !defined LWIP_ALTCP_TLS || defined __DOXYGEN__ +#define LWIP_ALTCP_TLS 0 +#endif + +/** + * @} + */ + +/* + ---------------------------------- + ---------- Pbuf options ---------- + ---------------------------------- +*/ +/** + * @defgroup lwip_opts_pbuf PBUF + * @ingroup lwip_opts + * @{ + */ +/** + * PBUF_LINK_HLEN: the number of bytes that should be allocated for a + * link level header. The default is 14, the standard value for + * Ethernet. + */ + #if !defined PBUF_LINK_HLEN || defined __DOXYGEN__ +#if (defined LWIP_HOOK_VLAN_SET || LWIP_VLAN_PCP) && !defined __DOXYGEN__ + #define PBUF_LINK_HLEN (18 + ETH_PAD_SIZE) +#else /* LWIP_HOOK_VLAN_SET || LWIP_VLAN_PCP */ + #define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE) +#endif /* LWIP_HOOK_VLAN_SET || LWIP_VLAN_PCP */ + #endif + +/** + * PBUF_LINK_ENCAPSULATION_HLEN: the number of bytes that should be allocated + * for an additional encapsulation header before ethernet headers (e.g. 802.11) + */ +#if !defined PBUF_LINK_ENCAPSULATION_HLEN || defined __DOXYGEN__ +#define PBUF_LINK_ENCAPSULATION_HLEN 0 +#endif + +/** + * PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. The default is + * designed to accommodate single full size TCP frame in one pbuf, including + * TCP_MSS, IP header, and link header. + */ +#if !defined PBUF_POOL_BUFSIZE || defined __DOXYGEN__ +#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+PBUF_IP_HLEN+PBUF_TRANSPORT_HLEN+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN) +#endif + +/** + * LWIP_PBUF_REF_T: Refcount type in pbuf. + * Default width of u8_t can be increased if 255 refs are not enough for you. + */ +#if !defined LWIP_PBUF_REF_T || defined __DOXYGEN__ +#define LWIP_PBUF_REF_T u8_t +#endif + +/** + * LWIP_PBUF_CUSTOM_DATA: Store private data on pbufs (e.g. timestamps) + * This extends struct pbuf so user can store custom data on every pbuf. + */ +#if !defined LWIP_PBUF_CUSTOM_DATA || defined __DOXYGEN__ +#define LWIP_PBUF_CUSTOM_DATA +#endif +/** + * @} + */ + +/* + ------------------------------------------------ + ---------- Network Interfaces options ---------- + ------------------------------------------------ +*/ +/** + * @defgroup lwip_opts_netif NETIF + * @ingroup lwip_opts + * @{ + */ +/** + * LWIP_SINGLE_NETIF==1: use a single netif only. This is the common case for + * small real-life targets. Some code like routing etc. can be left out. + */ +#if !defined LWIP_SINGLE_NETIF || defined __DOXYGEN__ +#define LWIP_SINGLE_NETIF 0 +#endif + +/** + * LWIP_NETIF_HOSTNAME==1: use DHCP_OPTION_HOSTNAME with netif's hostname + * field. + */ +#if !defined LWIP_NETIF_HOSTNAME || defined __DOXYGEN__ +#define LWIP_NETIF_HOSTNAME 0 +#endif + +/** + * LWIP_NETIF_API==1: Support netif api (in netifapi.c) + */ +#if !defined LWIP_NETIF_API || defined __DOXYGEN__ +#define LWIP_NETIF_API 0 +#endif + +/** + * LWIP_NETIF_STATUS_CALLBACK==1: Support a callback function whenever an interface + * changes its up/down status (i.e., due to DHCP IP acquisition) + */ +#if !defined LWIP_NETIF_STATUS_CALLBACK || defined __DOXYGEN__ +#define LWIP_NETIF_STATUS_CALLBACK 0 +#endif + +/** + * LWIP_NETIF_EXT_STATUS_CALLBACK==1: Support an extended callback function + * for several netif related event that supports multiple subscribers. + * @see netif_ext_status_callback + */ +#if !defined LWIP_NETIF_EXT_STATUS_CALLBACK || defined __DOXYGEN__ +#define LWIP_NETIF_EXT_STATUS_CALLBACK 0 +#endif + +/** + * LWIP_NETIF_LINK_CALLBACK==1: Support a callback function from an interface + * whenever the link changes (i.e., link down) + */ +#if !defined LWIP_NETIF_LINK_CALLBACK || defined __DOXYGEN__ +#define LWIP_NETIF_LINK_CALLBACK 0 +#endif + +/** + * LWIP_NETIF_REMOVE_CALLBACK==1: Support a callback function that is called + * when a netif has been removed + */ +#if !defined LWIP_NETIF_REMOVE_CALLBACK || defined __DOXYGEN__ +#define LWIP_NETIF_REMOVE_CALLBACK 0 +#endif + +/** + * LWIP_NETIF_HWADDRHINT==1: Cache link-layer-address hints (e.g. table + * indices) in struct netif. TCP and UDP can make use of this to prevent + * scanning the ARP table for every sent packet. While this is faster for big + * ARP tables or many concurrent connections, it might be counterproductive + * if you have a tiny ARP table or if there never are concurrent connections. + */ +#if !defined LWIP_NETIF_HWADDRHINT || defined __DOXYGEN__ +#define LWIP_NETIF_HWADDRHINT 0 +#endif + +/** + * LWIP_NETIF_TX_SINGLE_PBUF: if this is set to 1, lwIP *tries* to put all data + * to be sent into one single pbuf. This is for compatibility with DMA-enabled + * MACs that do not support scatter-gather. + * Beware that this might involve CPU-memcpy before transmitting that would not + * be needed without this flag! Use this only if you need to! + * + * ATTENTION: a driver should *NOT* rely on getting single pbufs but check TX + * pbufs for being in one piece. If not, @ref pbuf_clone can be used to get + * a single pbuf: + * if (p->next != NULL) { + * struct pbuf *q = pbuf_clone(PBUF_RAW, PBUF_RAM, p); + * if (q == NULL) { + * return ERR_MEM; + * } + * p = q; ATTENTION: do NOT free the old 'p' as the ref belongs to the caller! + * } + */ +#if !defined LWIP_NETIF_TX_SINGLE_PBUF || defined __DOXYGEN__ +#define LWIP_NETIF_TX_SINGLE_PBUF 0 +#endif /* LWIP_NETIF_TX_SINGLE_PBUF */ + +/** + * LWIP_NUM_NETIF_CLIENT_DATA: Number of clients that may store + * data in client_data member array of struct netif (max. 256). + */ +#if !defined LWIP_NUM_NETIF_CLIENT_DATA || defined __DOXYGEN__ +#define LWIP_NUM_NETIF_CLIENT_DATA 0 +#endif +/** + * @} + */ + +/* + ------------------------------------ + ---------- LOOPIF options ---------- + ------------------------------------ +*/ +/** + * @defgroup lwip_opts_loop Loopback interface + * @ingroup lwip_opts_netif + * @{ + */ +/** + * LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1). + * This is only needed when no real netifs are available. If at least one other + * netif is available, loopback traffic uses this netif. + */ +#if !defined LWIP_HAVE_LOOPIF || defined __DOXYGEN__ +#define LWIP_HAVE_LOOPIF (LWIP_NETIF_LOOPBACK && !LWIP_SINGLE_NETIF) +#endif + +/** + * LWIP_LOOPIF_MULTICAST==1: Support multicast/IGMP on loop interface (127.0.0.1). + */ +#if !defined LWIP_LOOPIF_MULTICAST || defined __DOXYGEN__ +#define LWIP_LOOPIF_MULTICAST 0 +#endif + +/** + * LWIP_NETIF_LOOPBACK==1: Support sending packets with a destination IP + * address equal to the netif IP address, looping them back up the stack. + */ +#if !defined LWIP_NETIF_LOOPBACK || defined __DOXYGEN__ +#define LWIP_NETIF_LOOPBACK 0 +#endif + +/** + * LWIP_LOOPBACK_MAX_PBUFS: Maximum number of pbufs on queue for loopback + * sending for each netif (0 = disabled) + */ +#if !defined LWIP_LOOPBACK_MAX_PBUFS || defined __DOXYGEN__ +#define LWIP_LOOPBACK_MAX_PBUFS 0 +#endif + +/** + * LWIP_NETIF_LOOPBACK_MULTITHREADING: Indicates whether threading is enabled in + * the system, as netifs must change how they behave depending on this setting + * for the LWIP_NETIF_LOOPBACK option to work. + * Setting this is needed to avoid reentering non-reentrant functions like + * tcp_input(). + * LWIP_NETIF_LOOPBACK_MULTITHREADING==1: Indicates that the user is using a + * multithreaded environment like tcpip.c. In this case, netif->input() + * is called directly. + * LWIP_NETIF_LOOPBACK_MULTITHREADING==0: Indicates a polling (or NO_SYS) setup. + * The packets are put on a list and netif_poll() must be called in + * the main application loop. + */ +#if !defined LWIP_NETIF_LOOPBACK_MULTITHREADING || defined __DOXYGEN__ +#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS) +#endif +/** + * @} + */ + +/* + ------------------------------------ + ---------- Thread options ---------- + ------------------------------------ +*/ +/** + * @defgroup lwip_opts_thread Threading + * @ingroup lwip_opts_infrastructure + * @{ + */ +/** + * TCPIP_THREAD_NAME: The name assigned to the main tcpip thread. + */ +#if !defined TCPIP_THREAD_NAME || defined __DOXYGEN__ +#define TCPIP_THREAD_NAME "tcpip_thread" +#endif + +/** + * TCPIP_THREAD_STACKSIZE: The stack size used by the main tcpip thread. + * The stack size value itself is platform-dependent, but is passed to + * sys_thread_new() when the thread is created. + */ +#if !defined TCPIP_THREAD_STACKSIZE || defined __DOXYGEN__ +#define TCPIP_THREAD_STACKSIZE 0 +#endif + +/** + * TCPIP_THREAD_PRIO: The priority assigned to the main tcpip thread. + * The priority value itself is platform-dependent, but is passed to + * sys_thread_new() when the thread is created. + */ +#if !defined TCPIP_THREAD_PRIO || defined __DOXYGEN__ +#define TCPIP_THREAD_PRIO 1 +#endif + +/** + * TCPIP_MBOX_SIZE: The mailbox size for the tcpip thread messages + * The queue size value itself is platform-dependent, but is passed to + * sys_mbox_new() when tcpip_init is called. + */ +#if !defined TCPIP_MBOX_SIZE || defined __DOXYGEN__ +#define TCPIP_MBOX_SIZE 0 +#endif + +/** + * Define this to something that triggers a watchdog. This is called from + * tcpip_thread after processing a message. + */ +#if !defined LWIP_TCPIP_THREAD_ALIVE || defined __DOXYGEN__ +#define LWIP_TCPIP_THREAD_ALIVE() +#endif + +/** + * SLIPIF_THREAD_NAME: The name assigned to the slipif_loop thread. + */ +#if !defined SLIPIF_THREAD_NAME || defined __DOXYGEN__ +#define SLIPIF_THREAD_NAME "slipif_loop" +#endif + +/** + * SLIP_THREAD_STACKSIZE: The stack size used by the slipif_loop thread. + * The stack size value itself is platform-dependent, but is passed to + * sys_thread_new() when the thread is created. + */ +#if !defined SLIPIF_THREAD_STACKSIZE || defined __DOXYGEN__ +#define SLIPIF_THREAD_STACKSIZE 0 +#endif + +/** + * SLIPIF_THREAD_PRIO: The priority assigned to the slipif_loop thread. + * The priority value itself is platform-dependent, but is passed to + * sys_thread_new() when the thread is created. + */ +#if !defined SLIPIF_THREAD_PRIO || defined __DOXYGEN__ +#define SLIPIF_THREAD_PRIO 1 +#endif + +/** + * DEFAULT_THREAD_NAME: The name assigned to any other lwIP thread. + */ +#if !defined DEFAULT_THREAD_NAME || defined __DOXYGEN__ +#define DEFAULT_THREAD_NAME "lwIP" +#endif + +/** + * DEFAULT_THREAD_STACKSIZE: The stack size used by any other lwIP thread. + * The stack size value itself is platform-dependent, but is passed to + * sys_thread_new() when the thread is created. + */ +#if !defined DEFAULT_THREAD_STACKSIZE || defined __DOXYGEN__ +#define DEFAULT_THREAD_STACKSIZE 0 +#endif + +/** + * DEFAULT_THREAD_PRIO: The priority assigned to any other lwIP thread. + * The priority value itself is platform-dependent, but is passed to + * sys_thread_new() when the thread is created. + */ +#if !defined DEFAULT_THREAD_PRIO || defined __DOXYGEN__ +#define DEFAULT_THREAD_PRIO 1 +#endif + +/** + * DEFAULT_RAW_RECVMBOX_SIZE: The mailbox size for the incoming packets on a + * NETCONN_RAW. The queue size value itself is platform-dependent, but is passed + * to sys_mbox_new() when the recvmbox is created. + */ +#if !defined DEFAULT_RAW_RECVMBOX_SIZE || defined __DOXYGEN__ +#define DEFAULT_RAW_RECVMBOX_SIZE 0 +#endif + +/** + * DEFAULT_UDP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a + * NETCONN_UDP. The queue size value itself is platform-dependent, but is passed + * to sys_mbox_new() when the recvmbox is created. + */ +#if !defined DEFAULT_UDP_RECVMBOX_SIZE || defined __DOXYGEN__ +#define DEFAULT_UDP_RECVMBOX_SIZE 0 +#endif + +/** + * DEFAULT_TCP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a + * NETCONN_TCP. The queue size value itself is platform-dependent, but is passed + * to sys_mbox_new() when the recvmbox is created. + */ +#if !defined DEFAULT_TCP_RECVMBOX_SIZE || defined __DOXYGEN__ +#define DEFAULT_TCP_RECVMBOX_SIZE 0 +#endif + +/** + * DEFAULT_ACCEPTMBOX_SIZE: The mailbox size for the incoming connections. + * The queue size value itself is platform-dependent, but is passed to + * sys_mbox_new() when the acceptmbox is created. + */ +#if !defined DEFAULT_ACCEPTMBOX_SIZE || defined __DOXYGEN__ +#define DEFAULT_ACCEPTMBOX_SIZE 0 +#endif +/** + * @} + */ + +/* + ---------------------------------------------- + ---------- Sequential layer options ---------- + ---------------------------------------------- +*/ +/** + * @defgroup lwip_opts_netconn Netconn + * @ingroup lwip_opts_threadsafe_apis + * @{ + */ +/** + * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c) + */ +#if !defined LWIP_NETCONN || defined __DOXYGEN__ +#define LWIP_NETCONN 1 +#endif + +/** LWIP_TCPIP_TIMEOUT==1: Enable tcpip_timeout/tcpip_untimeout to create + * timers running in tcpip_thread from another thread. + */ +#if !defined LWIP_TCPIP_TIMEOUT || defined __DOXYGEN__ +#define LWIP_TCPIP_TIMEOUT 0 +#endif + +/** LWIP_NETCONN_SEM_PER_THREAD==1: Use one (thread-local) semaphore per + * thread calling socket/netconn functions instead of allocating one + * semaphore per netconn (and per select etc.) + * ATTENTION: a thread-local semaphore for API calls is needed: + * - LWIP_NETCONN_THREAD_SEM_GET() returning a sys_sem_t* + * - LWIP_NETCONN_THREAD_SEM_ALLOC() creating the semaphore + * - LWIP_NETCONN_THREAD_SEM_FREE() freeing the semaphore + * The latter 2 can be invoked up by calling netconn_thread_init()/netconn_thread_cleanup(). + * Ports may call these for threads created with sys_thread_new(). + */ +#if !defined LWIP_NETCONN_SEM_PER_THREAD || defined __DOXYGEN__ +#define LWIP_NETCONN_SEM_PER_THREAD 0 +#endif + +/** LWIP_NETCONN_FULLDUPLEX==1: Enable code that allows reading from one thread, + * writing from a 2nd thread and closing from a 3rd thread at the same time. + * LWIP_NETCONN_SEM_PER_THREAD==1 is required to use one socket/netconn from + * multiple threads at once! + */ +#if !defined LWIP_NETCONN_FULLDUPLEX || defined __DOXYGEN__ +#define LWIP_NETCONN_FULLDUPLEX 0 +#endif +/** + * @} + */ + +/* + ------------------------------------ + ---------- Socket options ---------- + ------------------------------------ +*/ +/** + * @defgroup lwip_opts_socket Sockets + * @ingroup lwip_opts_threadsafe_apis + * @{ + */ +/** + * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c) + */ +#if !defined LWIP_SOCKET || defined __DOXYGEN__ +#define LWIP_SOCKET 1 +#endif + +/** + * LWIP_COMPAT_SOCKETS==1: Enable BSD-style sockets functions names through defines. + * LWIP_COMPAT_SOCKETS==2: Same as ==1 but correctly named functions are created. + * While this helps code completion, it might conflict with existing libraries. + * (only used if you use sockets.c) + */ +#if !defined LWIP_COMPAT_SOCKETS || defined __DOXYGEN__ +#define LWIP_COMPAT_SOCKETS 1 +#endif + +/** + * LWIP_POSIX_SOCKETS_IO_NAMES==1: Enable POSIX-style sockets functions names. + * Disable this option if you use a POSIX operating system that uses the same + * names (read, write & close). (only used if you use sockets.c) + */ +#if !defined LWIP_POSIX_SOCKETS_IO_NAMES || defined __DOXYGEN__ +#define LWIP_POSIX_SOCKETS_IO_NAMES 1 +#endif + +/** + * LWIP_SOCKET_OFFSET==n: Increases the file descriptor number created by LwIP with n. + * This can be useful when there are multiple APIs which create file descriptors. + * When they all start with a different offset and you won't make them overlap you can + * re implement read/write/close/ioctl/fnctl to send the requested action to the right + * library (sharing select will need more work though). + */ +#if !defined LWIP_SOCKET_OFFSET || defined __DOXYGEN__ +#define LWIP_SOCKET_OFFSET 0 +#endif + +/** + * LWIP_SOCKET_EXTERNAL_HEADERS==1: Use external headers instead of sockets.h + * and inet.h. In this case, user must provide its own headers by setting the + * values for LWIP_SOCKET_EXTERNAL_HEADER_SOCKETS_H and + * LWIP_SOCKET_EXTERNAL_HEADER_INET_H to appropriate include file names and the + * whole content of the default sockets.h and inet.h is skipped. + */ +#if !defined LWIP_SOCKET_EXTERNAL_HEADERS || defined __DOXYGEN__ +#define LWIP_SOCKET_EXTERNAL_HEADERS 0 +#endif + +/** + * LWIP_TCP_KEEPALIVE==1: Enable TCP_KEEPIDLE, TCP_KEEPINTVL and TCP_KEEPCNT + * options processing. Note that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set + * in seconds. (does not require sockets.c, and will affect tcp.c) + */ +#if !defined LWIP_TCP_KEEPALIVE || defined __DOXYGEN__ +#define LWIP_TCP_KEEPALIVE 0 +#endif + +/** + * LWIP_SO_SNDTIMEO==1: Enable send timeout for sockets/netconns and + * SO_SNDTIMEO processing. + */ +#if !defined LWIP_SO_SNDTIMEO || defined __DOXYGEN__ +#define LWIP_SO_SNDTIMEO 0 +#endif + +/** + * LWIP_SO_RCVTIMEO==1: Enable receive timeout for sockets/netconns and + * SO_RCVTIMEO processing. + */ +#if !defined LWIP_SO_RCVTIMEO || defined __DOXYGEN__ +#define LWIP_SO_RCVTIMEO 0 +#endif + +/** + * LWIP_TCP_USER_TIMEOUT==1: Enable socket send timeout. + * It specifies the maximum amount of time in milliseconds + * that transmitted data may remain unacknowledged before + * TCP will forcibly close. + */ +#if !defined LWIP_TCP_USER_TIMEOUT || defined __DOXYGEN__ +#define LWIP_TCP_USER_TIMEOUT 0 +#endif + +/** + * LWIP_SO_SNDRCVTIMEO_NONSTANDARD==1: SO_RCVTIMEO/SO_SNDTIMEO take an int + * (milliseconds, much like winsock does) instead of a struct timeval (default). + */ +#if !defined LWIP_SO_SNDRCVTIMEO_NONSTANDARD || defined __DOXYGEN__ +#define LWIP_SO_SNDRCVTIMEO_NONSTANDARD 0 +#endif + +/** + * LWIP_SO_RCVBUF==1: Enable SO_RCVBUF processing. + */ +#if !defined LWIP_SO_RCVBUF || defined __DOXYGEN__ +#define LWIP_SO_RCVBUF 0 +#endif + +/** + * LWIP_SIOCOUTQ==1: Enable LWIP_SIOCOUTQ reading. + * It returns count of (not sent + not acked) data bytes in send buffer. + */ +#if !defined LWIP_SIOCOUTQ || defined __DOXYGEN__ +#define LWIP_SIOCOUTQ 0 +#endif + +/** + * LWIP_SO_LINGER==1: Enable SO_LINGER processing. + */ +#if !defined LWIP_SO_LINGER || defined __DOXYGEN__ +#define LWIP_SO_LINGER 0 +#endif + +/** + * If LWIP_SO_RCVBUF is used, this is the default value for recv_bufsize. + */ +#if !defined RECV_BUFSIZE_DEFAULT || defined __DOXYGEN__ +#define RECV_BUFSIZE_DEFAULT INT_MAX +#endif + +/** + * By default, TCP socket/netconn close waits 20 seconds max to send the FIN + */ +#if !defined LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT || defined __DOXYGEN__ +#define LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT 20000 +#endif + +/** + * SO_REUSE==1: Enable SO_REUSEADDR option. + */ +#if !defined SO_REUSE || defined __DOXYGEN__ +#define SO_REUSE 0 +#endif + +/** + * SO_REUSE_RXTOALL==1: Pass a copy of incoming broadcast/multicast packets + * to all local matches if SO_REUSEADDR is turned on. + * WARNING: Adds a memcpy for every packet if passing to more than one pcb! + */ +#if !defined SO_REUSE_RXTOALL || defined __DOXYGEN__ +#define SO_REUSE_RXTOALL 0 +#endif + +/** + * LWIP_FIONREAD_LINUXMODE==0 (default): ioctl/FIONREAD returns the amount of + * pending data in the network buffer. This is the way windows does it. It's + * the default for lwIP since it is smaller. + * LWIP_FIONREAD_LINUXMODE==1: ioctl/FIONREAD returns the size of the next + * pending datagram in bytes. This is the way linux does it. This code is only + * here for compatibility. + */ +#if !defined LWIP_FIONREAD_LINUXMODE || defined __DOXYGEN__ +#define LWIP_FIONREAD_LINUXMODE 0 +#endif + +/** + * LWIP_SOCKET_SELECT==1 (default): enable select() for sockets (uses a netconn + * callback to keep track of events). + * This saves RAM (counters per socket) and code (netconn event callback), which + * should improve performance a bit). + */ +#if !defined LWIP_SOCKET_SELECT || defined __DOXYGEN__ +#define LWIP_SOCKET_SELECT 1 +#endif + +/** + * LWIP_SOCKET_POLL==1 (default): enable poll() for sockets (including + * struct pollfd, nfds_t, and constants) + */ +#if !defined LWIP_SOCKET_POLL || defined __DOXYGEN__ +#define LWIP_SOCKET_POLL 1 +#endif +/** + * @} + */ + +/* + ---------------------------------------- + ---------- Statistics options ---------- + ---------------------------------------- +*/ +/** + * @defgroup lwip_opts_stats Statistics + * @ingroup lwip_opts_debug + * @{ + */ +/** + * LWIP_STATS==1: Enable statistics collection in lwip_stats. + */ +#if !defined LWIP_STATS || defined __DOXYGEN__ +#define LWIP_STATS 1 +#endif + +#if LWIP_STATS + +/** + * LWIP_STATS_DISPLAY==1: Compile in the statistics output functions. + */ +#if !defined LWIP_STATS_DISPLAY || defined __DOXYGEN__ +#define LWIP_STATS_DISPLAY 0 +#endif + +/** + * LINK_STATS==1: Enable link stats. + */ +#if !defined LINK_STATS || defined __DOXYGEN__ +#define LINK_STATS 1 +#endif + +/** + * ETHARP_STATS==1: Enable etharp stats. + */ +#if !defined ETHARP_STATS || defined __DOXYGEN__ +#define ETHARP_STATS (LWIP_ARP) +#endif + +/** + * IP_STATS==1: Enable IP stats. + */ +#if !defined IP_STATS || defined __DOXYGEN__ +#define IP_STATS 1 +#endif + +/** + * IPFRAG_STATS==1: Enable IP fragmentation stats. Default is + * on if using either frag or reass. + */ +#if !defined IPFRAG_STATS || defined __DOXYGEN__ +#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG) +#endif + +/** + * ICMP_STATS==1: Enable ICMP stats. + */ +#if !defined ICMP_STATS || defined __DOXYGEN__ +#define ICMP_STATS 1 +#endif + +/** + * IGMP_STATS==1: Enable IGMP stats. + */ +#if !defined IGMP_STATS || defined __DOXYGEN__ +#define IGMP_STATS (LWIP_IGMP) +#endif + +/** + * UDP_STATS==1: Enable UDP stats. Default is on if + * UDP enabled, otherwise off. + */ +#if !defined UDP_STATS || defined __DOXYGEN__ +#define UDP_STATS (LWIP_UDP) +#endif + +/** + * TCP_STATS==1: Enable TCP stats. Default is on if TCP + * enabled, otherwise off. + */ +#if !defined TCP_STATS || defined __DOXYGEN__ +#define TCP_STATS (LWIP_TCP) +#endif + +/** + * MEM_STATS==1: Enable mem.c stats. + */ +#if !defined MEM_STATS || defined __DOXYGEN__ +#define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0)) +#endif + +/** + * MEMP_STATS==1: Enable memp.c pool stats. + */ +#if !defined MEMP_STATS || defined __DOXYGEN__ +#define MEMP_STATS (MEMP_MEM_MALLOC == 0) +#endif + +/** + * SYS_STATS==1: Enable system stats (sem and mbox counts, etc). + */ +#if !defined SYS_STATS || defined __DOXYGEN__ +#define SYS_STATS (NO_SYS == 0) +#endif + +/** + * IP6_STATS==1: Enable IPv6 stats. + */ +#if !defined IP6_STATS || defined __DOXYGEN__ +#define IP6_STATS (LWIP_IPV6) +#endif + +/** + * ICMP6_STATS==1: Enable ICMP for IPv6 stats. + */ +#if !defined ICMP6_STATS || defined __DOXYGEN__ +#define ICMP6_STATS (LWIP_IPV6 && LWIP_ICMP6) +#endif + +/** + * IP6_FRAG_STATS==1: Enable IPv6 fragmentation stats. + */ +#if !defined IP6_FRAG_STATS || defined __DOXYGEN__ +#define IP6_FRAG_STATS (LWIP_IPV6 && (LWIP_IPV6_FRAG || LWIP_IPV6_REASS)) +#endif + +/** + * MLD6_STATS==1: Enable MLD for IPv6 stats. + */ +#if !defined MLD6_STATS || defined __DOXYGEN__ +#define MLD6_STATS (LWIP_IPV6 && LWIP_IPV6_MLD) +#endif + +/** + * ND6_STATS==1: Enable Neighbor discovery for IPv6 stats. + */ +#if !defined ND6_STATS || defined __DOXYGEN__ +#define ND6_STATS (LWIP_IPV6) +#endif + +/** + * MIB2_STATS==1: Stats for SNMP MIB2. + */ +#if !defined MIB2_STATS || defined __DOXYGEN__ +#define MIB2_STATS 0 +#endif + +#else + +#define LINK_STATS 0 +#define ETHARP_STATS 0 +#define IP_STATS 0 +#define IPFRAG_STATS 0 +#define ICMP_STATS 0 +#define IGMP_STATS 0 +#define UDP_STATS 0 +#define TCP_STATS 0 +#define MEM_STATS 0 +#define MEMP_STATS 0 +#define SYS_STATS 0 +#define LWIP_STATS_DISPLAY 0 +#define IP6_STATS 0 +#define ICMP6_STATS 0 +#define IP6_FRAG_STATS 0 +#define MLD6_STATS 0 +#define ND6_STATS 0 +#define MIB2_STATS 0 + +#endif /* LWIP_STATS */ +/** + * @} + */ + +/* + -------------------------------------- + ---------- Checksum options ---------- + -------------------------------------- +*/ +/** + * @defgroup lwip_opts_checksum Checksum + * @ingroup lwip_opts_infrastructure + * @{ + */ +/** + * LWIP_CHECKSUM_CTRL_PER_NETIF==1: Checksum generation/check can be enabled/disabled + * per netif. + * ATTENTION: if enabled, the CHECKSUM_GEN_* and CHECKSUM_CHECK_* defines must be enabled! + */ +#if !defined LWIP_CHECKSUM_CTRL_PER_NETIF || defined __DOXYGEN__ +#define LWIP_CHECKSUM_CTRL_PER_NETIF 0 +#endif + +/** + * CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets. + */ +#if !defined CHECKSUM_GEN_IP || defined __DOXYGEN__ +#define CHECKSUM_GEN_IP 1 +#endif + +/** + * CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets. + */ +#if !defined CHECKSUM_GEN_UDP || defined __DOXYGEN__ +#define CHECKSUM_GEN_UDP 1 +#endif + +/** + * CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets. + */ +#if !defined CHECKSUM_GEN_TCP || defined __DOXYGEN__ +#define CHECKSUM_GEN_TCP 1 +#endif + +/** + * CHECKSUM_GEN_ICMP==1: Generate checksums in software for outgoing ICMP packets. + */ +#if !defined CHECKSUM_GEN_ICMP || defined __DOXYGEN__ +#define CHECKSUM_GEN_ICMP 1 +#endif + +/** + * CHECKSUM_GEN_ICMP6==1: Generate checksums in software for outgoing ICMP6 packets. + */ +#if !defined CHECKSUM_GEN_ICMP6 || defined __DOXYGEN__ +#define CHECKSUM_GEN_ICMP6 1 +#endif + +/** + * CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets. + */ +#if !defined CHECKSUM_CHECK_IP || defined __DOXYGEN__ +#define CHECKSUM_CHECK_IP 1 +#endif + +/** + * CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets. + */ +#if !defined CHECKSUM_CHECK_UDP || defined __DOXYGEN__ +#define CHECKSUM_CHECK_UDP 1 +#endif + +/** + * CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets. + */ +#if !defined CHECKSUM_CHECK_TCP || defined __DOXYGEN__ +#define CHECKSUM_CHECK_TCP 1 +#endif + +/** + * CHECKSUM_CHECK_ICMP==1: Check checksums in software for incoming ICMP packets. + */ +#if !defined CHECKSUM_CHECK_ICMP || defined __DOXYGEN__ +#define CHECKSUM_CHECK_ICMP 1 +#endif + +/** + * CHECKSUM_CHECK_ICMP6==1: Check checksums in software for incoming ICMPv6 packets + */ +#if !defined CHECKSUM_CHECK_ICMP6 || defined __DOXYGEN__ +#define CHECKSUM_CHECK_ICMP6 1 +#endif + +/** + * LWIP_CHECKSUM_ON_COPY==1: Calculate checksum when copying data from + * application buffers to pbufs. + */ +#if !defined LWIP_CHECKSUM_ON_COPY || defined __DOXYGEN__ +#define LWIP_CHECKSUM_ON_COPY 0 +#endif +/** + * @} + */ + +/* + --------------------------------------- + ---------- IPv6 options --------------- + --------------------------------------- +*/ +/** + * @defgroup lwip_opts_ipv6 IPv6 + * @ingroup lwip_opts + * @{ + */ +/** + * LWIP_IPV6==1: Enable IPv6 + */ +#if !defined LWIP_IPV6 || defined __DOXYGEN__ +#define LWIP_IPV6 0 +#endif + +/** + * IPV6_REASS_MAXAGE: Maximum time (in multiples of IP6_REASS_TMR_INTERVAL - so seconds, normally) + * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived + * in this time, the whole packet is discarded. + */ +#if !defined IPV6_REASS_MAXAGE || defined __DOXYGEN__ +#define IPV6_REASS_MAXAGE 60 +#endif + +/** + * LWIP_IPV6_SCOPES==1: Enable support for IPv6 address scopes, ensuring that + * e.g. link-local addresses are really treated as link-local. Disable this + * setting only for single-interface configurations. + * All addresses that have a scope according to the default policy (link-local + * unicast addresses, interface-local and link-local multicast addresses) should + * now have a zone set on them before being passed to the core API, although + * lwIP will currently attempt to select a zone on the caller's behalf when + * necessary. Applications that directly assign IPv6 addresses to interfaces + * (which is NOT recommended) must now ensure that link-local addresses carry + * the netif's zone. See the new ip6_zone.h header file for more information and + * relevant macros. For now it is still possible to turn off scopes support + * through the new LWIP_IPV6_SCOPES option. When upgrading an implementation that + * uses the core API directly, it is highly recommended to enable + * LWIP_IPV6_SCOPES_DEBUG at least for a while, to ensure e.g. proper address + * initialization. + */ +#if !defined LWIP_IPV6_SCOPES || defined __DOXYGEN__ +#define LWIP_IPV6_SCOPES (LWIP_IPV6 && !LWIP_SINGLE_NETIF) +#endif + +/** + * LWIP_IPV6_SCOPES_DEBUG==1: Perform run-time checks to verify that addresses + * are properly zoned (see ip6_zone.h on what that means) where it matters. + * Enabling this setting is highly recommended when upgrading from an existing + * installation that is not yet scope-aware; otherwise it may be too expensive. + */ +#if !defined LWIP_IPV6_SCOPES_DEBUG || defined __DOXYGEN__ +#define LWIP_IPV6_SCOPES_DEBUG 0 +#endif + +/** + * LWIP_IPV6_NUM_ADDRESSES: Number of IPv6 addresses per netif. + */ +#if !defined LWIP_IPV6_NUM_ADDRESSES || defined __DOXYGEN__ +#define LWIP_IPV6_NUM_ADDRESSES 3 +#endif + +/** + * LWIP_IPV6_FORWARD==1: Forward IPv6 packets across netifs + */ +#if !defined LWIP_IPV6_FORWARD || defined __DOXYGEN__ +#define LWIP_IPV6_FORWARD 0 +#endif + +/** + * LWIP_IPV6_FRAG==1: Fragment outgoing IPv6 packets that are too big. + */ +#if !defined LWIP_IPV6_FRAG || defined __DOXYGEN__ +#define LWIP_IPV6_FRAG 1 +#endif + +/** + * LWIP_IPV6_REASS==1: reassemble incoming IPv6 packets that fragmented + */ +#if !defined LWIP_IPV6_REASS || defined __DOXYGEN__ +#define LWIP_IPV6_REASS LWIP_IPV6 +#endif + +/** + * LWIP_IPV6_SEND_ROUTER_SOLICIT==1: Send router solicitation messages during + * network startup. + */ +#if !defined LWIP_IPV6_SEND_ROUTER_SOLICIT || defined __DOXYGEN__ +#define LWIP_IPV6_SEND_ROUTER_SOLICIT LWIP_IPV6 +#endif + +/** + * LWIP_IPV6_AUTOCONFIG==1: Enable stateless address autoconfiguration as per RFC 4862. + */ +#if !defined LWIP_IPV6_AUTOCONFIG || defined __DOXYGEN__ +#define LWIP_IPV6_AUTOCONFIG LWIP_IPV6 +#endif + +/** + * LWIP_IPV6_ADDRESS_LIFETIMES==1: Keep valid and preferred lifetimes for each + * IPv6 address. Required for LWIP_IPV6_AUTOCONFIG. May still be enabled + * otherwise, in which case the application may assign address lifetimes with + * the appropriate macros. Addresses with no lifetime are assumed to be static. + * If this option is disabled, all addresses are assumed to be static. + */ +#if !defined LWIP_IPV6_ADDRESS_LIFETIMES || defined __DOXYGEN__ +#define LWIP_IPV6_ADDRESS_LIFETIMES LWIP_IPV6_AUTOCONFIG +#endif + +/** + * LWIP_IPV6_DUP_DETECT_ATTEMPTS=[0..7]: Number of duplicate address detection attempts. + */ +#if !defined LWIP_IPV6_DUP_DETECT_ATTEMPTS || defined __DOXYGEN__ +#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 1 +#endif +/** + * @} + */ + +/** + * @defgroup lwip_opts_icmp6 ICMP6 + * @ingroup lwip_opts_ipv6 + * @{ + */ +/** + * LWIP_ICMP6==1: Enable ICMPv6 (mandatory per RFC) + */ +#if !defined LWIP_ICMP6 || defined __DOXYGEN__ +#define LWIP_ICMP6 LWIP_IPV6 +#endif + +/** + * LWIP_ICMP6_DATASIZE: bytes from original packet to send back in + * ICMPv6 error messages (0 = default of IP6_MIN_MTU_LENGTH) + * ATTENTION: RFC4443 section 2.4 says IP6_MIN_MTU_LENGTH is a MUST, + * so override this only if you absolutely have to! + */ +#if !defined LWIP_ICMP6_DATASIZE || defined __DOXYGEN__ +#define LWIP_ICMP6_DATASIZE 0 +#endif + +/** + * LWIP_ICMP6_HL: default hop limit for ICMPv6 messages + */ +#if !defined LWIP_ICMP6_HL || defined __DOXYGEN__ +#define LWIP_ICMP6_HL 255 +#endif +/** + * @} + */ + +/** + * @defgroup lwip_opts_mld6 Multicast listener discovery + * @ingroup lwip_opts_ipv6 + * @{ + */ +/** + * LWIP_IPV6_MLD==1: Enable multicast listener discovery protocol. + * If LWIP_IPV6 is enabled but this setting is disabled, the MAC layer must + * indiscriminately pass all inbound IPv6 multicast traffic to lwIP. + */ +#if !defined LWIP_IPV6_MLD || defined __DOXYGEN__ +#define LWIP_IPV6_MLD LWIP_IPV6 +#endif + +/** + * MEMP_NUM_MLD6_GROUP: Max number of IPv6 multicast groups that can be joined. + * There must be enough groups so that each netif can join the solicited-node + * multicast group for each of its local addresses, plus one for MDNS if + * applicable, plus any number of groups to be joined on UDP sockets. + */ +#if !defined MEMP_NUM_MLD6_GROUP || defined __DOXYGEN__ +#define MEMP_NUM_MLD6_GROUP 4 +#endif +/** + * @} + */ + +/** + * @defgroup lwip_opts_nd6 Neighbor discovery + * @ingroup lwip_opts_ipv6 + * @{ + */ +/** + * LWIP_ND6_QUEUEING==1: queue outgoing IPv6 packets while MAC address + * is being resolved. + */ +#if !defined LWIP_ND6_QUEUEING || defined __DOXYGEN__ +#define LWIP_ND6_QUEUEING LWIP_IPV6 +#endif + +/** + * MEMP_NUM_ND6_QUEUE: Max number of IPv6 packets to queue during MAC resolution. + */ +#if !defined MEMP_NUM_ND6_QUEUE || defined __DOXYGEN__ +#define MEMP_NUM_ND6_QUEUE 20 +#endif + +/** + * LWIP_ND6_NUM_NEIGHBORS: Number of entries in IPv6 neighbor cache + */ +#if !defined LWIP_ND6_NUM_NEIGHBORS || defined __DOXYGEN__ +#define LWIP_ND6_NUM_NEIGHBORS 10 +#endif + +/** + * LWIP_ND6_NUM_DESTINATIONS: number of entries in IPv6 destination cache + */ +#if !defined LWIP_ND6_NUM_DESTINATIONS || defined __DOXYGEN__ +#define LWIP_ND6_NUM_DESTINATIONS 10 +#endif + +/** + * LWIP_ND6_NUM_PREFIXES: number of entries in IPv6 on-link prefixes cache + */ +#if !defined LWIP_ND6_NUM_PREFIXES || defined __DOXYGEN__ +#define LWIP_ND6_NUM_PREFIXES 5 +#endif + +/** + * LWIP_ND6_NUM_ROUTERS: number of entries in IPv6 default router cache + */ +#if !defined LWIP_ND6_NUM_ROUTERS || defined __DOXYGEN__ +#define LWIP_ND6_NUM_ROUTERS 3 +#endif + +/** + * LWIP_ND6_MAX_MULTICAST_SOLICIT: max number of multicast solicit messages to send + * (neighbor solicit and router solicit) + */ +#if !defined LWIP_ND6_MAX_MULTICAST_SOLICIT || defined __DOXYGEN__ +#define LWIP_ND6_MAX_MULTICAST_SOLICIT 3 +#endif + +/** + * LWIP_ND6_MAX_UNICAST_SOLICIT: max number of unicast neighbor solicitation messages + * to send during neighbor reachability detection. + */ +#if !defined LWIP_ND6_MAX_UNICAST_SOLICIT || defined __DOXYGEN__ +#define LWIP_ND6_MAX_UNICAST_SOLICIT 3 +#endif + +/** + * Unused: See ND RFC (time in milliseconds). + */ +#if !defined LWIP_ND6_MAX_ANYCAST_DELAY_TIME || defined __DOXYGEN__ +#define LWIP_ND6_MAX_ANYCAST_DELAY_TIME 1000 +#endif + +/** + * Unused: See ND RFC + */ +#if !defined LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT || defined __DOXYGEN__ +#define LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT 3 +#endif + +/** + * LWIP_ND6_REACHABLE_TIME: default neighbor reachable time (in milliseconds). + * May be updated by router advertisement messages. + */ +#if !defined LWIP_ND6_REACHABLE_TIME || defined __DOXYGEN__ +#define LWIP_ND6_REACHABLE_TIME 30000 +#endif + +/** + * LWIP_ND6_RETRANS_TIMER: default retransmission timer for solicitation messages + */ +#if !defined LWIP_ND6_RETRANS_TIMER || defined __DOXYGEN__ +#define LWIP_ND6_RETRANS_TIMER 1000 +#endif + +/** + * LWIP_ND6_DELAY_FIRST_PROBE_TIME: Delay before first unicast neighbor solicitation + * message is sent, during neighbor reachability detection. + */ +#if !defined LWIP_ND6_DELAY_FIRST_PROBE_TIME || defined __DOXYGEN__ +#define LWIP_ND6_DELAY_FIRST_PROBE_TIME 5000 +#endif + +/** + * LWIP_ND6_ALLOW_RA_UPDATES==1: Allow Router Advertisement messages to update + * Reachable time and retransmission timers, and netif MTU. + */ +#if !defined LWIP_ND6_ALLOW_RA_UPDATES || defined __DOXYGEN__ +#define LWIP_ND6_ALLOW_RA_UPDATES 1 +#endif + +/** + * LWIP_ND6_TCP_REACHABILITY_HINTS==1: Allow TCP to provide Neighbor Discovery + * with reachability hints for connected destinations. This helps avoid sending + * unicast neighbor solicitation messages. + */ +#if !defined LWIP_ND6_TCP_REACHABILITY_HINTS || defined __DOXYGEN__ +#define LWIP_ND6_TCP_REACHABILITY_HINTS 1 +#endif + +/** + * LWIP_ND6_RDNSS_MAX_DNS_SERVERS > 0: Use IPv6 Router Advertisement Recursive + * DNS Server Option (as per RFC 6106) to copy a defined maximum number of DNS + * servers to the DNS module. + */ +#if !defined LWIP_ND6_RDNSS_MAX_DNS_SERVERS || defined __DOXYGEN__ +#define LWIP_ND6_RDNSS_MAX_DNS_SERVERS 0 +#endif +/** + * @} + */ + +/** + * @defgroup lwip_opts_dhcpv6 DHCPv6 + * @ingroup lwip_opts_ipv6 + * @{ + */ +/** + * LWIP_IPV6_DHCP6==1: enable DHCPv6 stateful/stateless address autoconfiguration. + */ +#if !defined LWIP_IPV6_DHCP6 || defined __DOXYGEN__ +#define LWIP_IPV6_DHCP6 0 +#endif + +/** + * LWIP_IPV6_DHCP6_STATEFUL==1: enable DHCPv6 stateful address autoconfiguration. + * (not supported, yet!) + */ +#if !defined LWIP_IPV6_DHCP6_STATEFUL || defined __DOXYGEN__ +#define LWIP_IPV6_DHCP6_STATEFUL 0 +#endif + +/** + * LWIP_IPV6_DHCP6_STATELESS==1: enable DHCPv6 stateless address autoconfiguration. + */ +#if !defined LWIP_IPV6_DHCP6_STATELESS || defined __DOXYGEN__ +#define LWIP_IPV6_DHCP6_STATELESS LWIP_IPV6_DHCP6 +#endif + +/** + * LWIP_DHCP6_GETS_NTP==1: Request NTP servers via DHCPv6. For each + * response packet, a callback is called, which has to be provided by the port: + * void dhcp6_set_ntp_servers(u8_t num_ntp_servers, ip_addr_t* ntp_server_addrs); +*/ +#if !defined LWIP_DHCP6_GET_NTP_SRV || defined __DOXYGEN__ +#define LWIP_DHCP6_GET_NTP_SRV 0 +#endif + +/** + * The maximum of NTP servers requested + */ +#if !defined LWIP_DHCP6_MAX_NTP_SERVERS || defined __DOXYGEN__ +#define LWIP_DHCP6_MAX_NTP_SERVERS 1 +#endif + +/** + * LWIP_DHCP6_MAX_DNS_SERVERS > 0: Request DNS servers via DHCPv6. + * DNS servers received in the response are passed to DNS via @ref dns_setserver() + * (up to the maximum limit defined here). + */ +#if !defined LWIP_DHCP6_MAX_DNS_SERVERS || defined __DOXYGEN__ +#define LWIP_DHCP6_MAX_DNS_SERVERS DNS_MAX_SERVERS +#endif +/** + * @} + */ + +/* + --------------------------------------- + ---------- Hook options --------------- + --------------------------------------- +*/ + +/** + * @defgroup lwip_opts_hooks Hooks + * @ingroup lwip_opts_infrastructure + * Hooks are undefined by default, define them to a function if you need them. + * @{ + */ + +/** + * LWIP_HOOK_FILENAME: Custom filename to \#include in files that provide hooks. + * Declare your hook function prototypes in there, you may also \#include all headers + * providing data types that are need in this file. + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_FILENAME "path/to/my/lwip_hooks.h" +#endif + +/** + * LWIP_HOOK_TCP_ISN: + * Hook for generation of the Initial Sequence Number (ISN) for a new TCP + * connection. The default lwIP ISN generation algorithm is very basic and may + * allow for TCP spoofing attacks. This hook provides the means to implement + * the standardized ISN generation algorithm from RFC 6528 (see contrib/adons/tcp_isn), + * or any other desired algorithm as a replacement. + * Called from tcp_connect() and tcp_listen_input() when an ISN is needed for + * a new TCP connection, if TCP support (@ref LWIP_TCP) is enabled.
+ * Signature:\code{.c} + * u32_t my_hook_tcp_isn(const ip_addr_t* local_ip, u16_t local_port, const ip_addr_t* remote_ip, u16_t remote_port); + * \endcode + * - it may be necessary to use "struct ip_addr" (ip4_addr, ip6_addr) instead of "ip_addr_t" in function declarations
+ * Arguments: + * - local_ip: pointer to the local IP address of the connection + * - local_port: local port number of the connection (host-byte order) + * - remote_ip: pointer to the remote IP address of the connection + * - remote_port: remote port number of the connection (host-byte order)
+ * Return value: + * - the 32-bit Initial Sequence Number to use for the new TCP connection. + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_TCP_ISN(local_ip, local_port, remote_ip, remote_port) +#endif + +/** + * LWIP_HOOK_TCP_INPACKET_PCB: + * Hook for intercepting incoming packets before they are passed to a pcb. This + * allows updating some state or even dropping a packet. + * Signature:\code{.c} + * err_t my_hook_tcp_inpkt(struct tcp_pcb *pcb, struct tcp_hdr *hdr, u16_t optlen, u16_t opt1len, u8_t *opt2, struct pbuf *p); + * \endcode + * Arguments: + * - pcb: tcp_pcb selected for input of this packet (ATTENTION: this may be + * struct tcp_pcb_listen if pcb->state == LISTEN) + * - hdr: pointer to tcp header (ATTENTION: tcp options may not be in one piece!) + * - optlen: tcp option length + * - opt1len: tcp option length 1st part + * - opt2: if this is != NULL, tcp options are split among 2 pbufs. In that case, + * options start at right after the tcp header ('(u8_t*)(hdr + 1)') for + * the first 'opt1len' bytes and the rest starts at 'opt2'. opt2len can + * be simply calculated: 'opt2len = optlen - opt1len;' + * - p: input packet, p->payload points to application data (that's why tcp hdr + * and options are passed in separately) + * Return value: + * - ERR_OK: continue input of this packet as normal + * - != ERR_OK: drop this packet for input (don't continue input processing) + * + * ATTENTION: don't call any tcp api functions that might change tcp state (pcb + * state or any pcb lists) from this callback! + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_TCP_INPACKET_PCB(pcb, hdr, optlen, opt1len, opt2, p) +#endif + +/** + * LWIP_HOOK_TCP_OUT_TCPOPT_LENGTH: + * Hook for increasing the size of the options allocated with a tcp header. + * Together with LWIP_HOOK_TCP_OUT_ADD_TCPOPTS, this can be used to add custom + * options to outgoing tcp segments. + * Signature:\code{.c} + * u8_t my_hook_tcp_out_tcpopt_length(const struct tcp_pcb *pcb, u8_t internal_option_length); + * \endcode + * Arguments: + * - pcb: tcp_pcb that transmits (ATTENTION: this may be NULL or + * struct tcp_pcb_listen if pcb->state == LISTEN) + * - internal_option_length: tcp option length used by the stack internally + * Return value: + * - a number of bytes to allocate for tcp options (internal_option_length <= ret <= 40) + * + * ATTENTION: don't call any tcp api functions that might change tcp state (pcb + * state or any pcb lists) from this callback! + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_TCP_OUT_TCPOPT_LENGTH(pcb, internal_len) +#endif + +/** + * LWIP_HOOK_TCP_OUT_ADD_TCPOPTS: + * Hook for adding custom options to outgoing tcp segments. + * Space for these custom options has to be reserved via LWIP_HOOK_TCP_OUT_TCPOPT_LENGTH. + * Signature:\code{.c} + * u32_t *my_hook_tcp_out_add_tcpopts(struct pbuf *p, struct tcp_hdr *hdr, const struct tcp_pcb *pcb, u32_t *opts); + * \endcode + * Arguments: + * - p: output packet, p->payload pointing to tcp header, data follows + * - hdr: tcp header + * - pcb: tcp_pcb that transmits (ATTENTION: this may be NULL or + * struct tcp_pcb_listen if pcb->state == LISTEN) + * - opts: pointer where to add the custom options (there may already be options + * between the header and these) + * Return value: + * - pointer pointing directly after the inserted options + * + * ATTENTION: don't call any tcp api functions that might change tcp state (pcb + * state or any pcb lists) from this callback! + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_TCP_OUT_ADD_TCPOPTS(p, hdr, pcb, opts) +#endif + +/** + * LWIP_HOOK_IP4_INPUT(pbuf, input_netif): + * Called from ip_input() (IPv4) + * Signature:\code{.c} + * int my_hook(struct pbuf *pbuf, struct netif *input_netif); + * \endcode + * Arguments: + * - pbuf: received struct pbuf passed to ip_input() + * - input_netif: struct netif on which the packet has been received + * Return values: + * - 0: Hook has not consumed the packet, packet is processed as normal + * - != 0: Hook has consumed the packet. + * If the hook consumed the packet, 'pbuf' is in the responsibility of the hook + * (i.e. free it when done). + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_IP4_INPUT(pbuf, input_netif) +#endif + +/** + * LWIP_HOOK_IP4_ROUTE(dest): + * Called from ip_route() (IPv4) + * Signature:\code{.c} + * struct netif *my_hook(const ip4_addr_t *dest); + * \endcode + * Arguments: + * - dest: destination IPv4 address + * Returns values: + * - the destination netif + * - NULL if no destination netif is found. In that case, ip_route() continues as normal. + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_IP4_ROUTE() +#endif + +/** + * LWIP_HOOK_IP4_ROUTE_SRC(src, dest): + * Source-based routing for IPv4 - called from ip_route() (IPv4) + * Signature:\code{.c} + * struct netif *my_hook(const ip4_addr_t *src, const ip4_addr_t *dest); + * \endcode + * Arguments: + * - src: local/source IPv4 address + * - dest: destination IPv4 address + * Returns values: + * - the destination netif + * - NULL if no destination netif is found. In that case, ip_route() continues as normal. + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_IP4_ROUTE_SRC(src, dest) +#endif + +/** + * LWIP_HOOK_IP4_CANFORWARD(src, dest): + * Check if an IPv4 can be forwarded - called from: + * ip4_input() -> ip4_forward() -> ip4_canforward() (IPv4) + * - source address is available via ip4_current_src_addr() + * - calling an output function in this context (e.g. multicast router) is allowed + * Signature:\code{.c} + * int my_hook(struct pbuf *p, u32_t dest_addr_hostorder); + * \endcode + * Arguments: + * - p: packet to forward + * - dest: destination IPv4 address + * Returns values: + * - 1: forward + * - 0: don't forward + * - -1: no decision. In that case, ip4_canforward() continues as normal. + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_IP4_CANFORWARD(src, dest) +#endif + +/** + * LWIP_HOOK_ETHARP_GET_GW(netif, dest): + * Called from etharp_output() (IPv4) + * Signature:\code{.c} + * const ip4_addr_t *my_hook(struct netif *netif, const ip4_addr_t *dest); + * \endcode + * Arguments: + * - netif: the netif used for sending + * - dest: the destination IPv4 address + * Return values: + * - the IPv4 address of the gateway to handle the specified destination IPv4 address + * - NULL, in which case the netif's default gateway is used + * + * The returned address MUST be directly reachable on the specified netif! + * This function is meant to implement advanced IPv4 routing together with + * LWIP_HOOK_IP4_ROUTE(). The actual routing/gateway table implementation is + * not part of lwIP but can e.g. be hidden in the netif's state argument. +*/ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_ETHARP_GET_GW(netif, dest) +#endif + +/** + * LWIP_HOOK_IP6_INPUT(pbuf, input_netif): + * Called from ip6_input() (IPv6) + * Signature:\code{.c} + * int my_hook(struct pbuf *pbuf, struct netif *input_netif); + * \endcode + * Arguments: + * - pbuf: received struct pbuf passed to ip6_input() + * - input_netif: struct netif on which the packet has been received + * Return values: + * - 0: Hook has not consumed the packet, packet is processed as normal + * - != 0: Hook has consumed the packet. + * If the hook consumed the packet, 'pbuf' is in the responsibility of the hook + * (i.e. free it when done). + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_IP6_INPUT(pbuf, input_netif) +#endif + +/** + * LWIP_HOOK_IP6_ROUTE(src, dest): + * Called from ip_route() (IPv6) + * Signature:\code{.c} + * struct netif *my_hook(const ip6_addr_t *dest, const ip6_addr_t *src); + * \endcode + * Arguments: + * - src: source IPv6 address + * - dest: destination IPv6 address + * Return values: + * - the destination netif + * - NULL if no destination netif is found. In that case, ip6_route() continues as normal. + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_IP6_ROUTE(src, dest) +#endif + +/** + * LWIP_HOOK_ND6_GET_GW(netif, dest): + * Called from nd6_get_next_hop_entry() (IPv6) + * Signature:\code{.c} + * const ip6_addr_t *my_hook(struct netif *netif, const ip6_addr_t *dest); + * \endcode + * Arguments: + * - netif: the netif used for sending + * - dest: the destination IPv6 address + * Return values: + * - the IPv6 address of the next hop to handle the specified destination IPv6 address + * - NULL, in which case a NDP-discovered router is used instead + * + * The returned address MUST be directly reachable on the specified netif! + * This function is meant to implement advanced IPv6 routing together with + * LWIP_HOOK_IP6_ROUTE(). The actual routing/gateway table implementation is + * not part of lwIP but can e.g. be hidden in the netif's state argument. +*/ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_ND6_GET_GW(netif, dest) +#endif + +/** + * LWIP_HOOK_VLAN_CHECK(netif, eth_hdr, vlan_hdr): + * Called from ethernet_input() if VLAN support is enabled + * Signature:\code{.c} + * int my_hook(struct netif *netif, struct eth_hdr *eth_hdr, struct eth_vlan_hdr *vlan_hdr); + * \endcode + * Arguments: + * - netif: struct netif on which the packet has been received + * - eth_hdr: struct eth_hdr of the packet + * - vlan_hdr: struct eth_vlan_hdr of the packet + * Return values: + * - 0: Packet must be dropped. + * - != 0: Packet must be accepted. + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_VLAN_CHECK(netif, eth_hdr, vlan_hdr) +#endif + +/** + * LWIP_HOOK_VLAN_SET: + * Hook can be used to set prio_vid field of vlan_hdr. If you need to store data + * on per-netif basis to implement this callback, see @ref netif_cd. + * Called from ethernet_output() if VLAN support (@ref ETHARP_SUPPORT_VLAN) is enabled.
+ * Signature:\code{.c} + * s32_t my_hook_vlan_set(struct netif* netif, struct pbuf* pbuf, const struct eth_addr* src, const struct eth_addr* dst, u16_t eth_type); + * \endcode + * Arguments: + * - netif: struct netif that the packet will be sent through + * - p: struct pbuf packet to be sent + * - src: source eth address + * - dst: destination eth address + * - eth_type: ethernet type to packet to be sent
+ * + * + * Return values: + * - <0: Packet shall not contain VLAN header. + * - 0 <= return value <= 0xFFFF: Packet shall contain VLAN header. Return value is prio_vid in host byte order. + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_VLAN_SET(netif, p, src, dst, eth_type) +#endif + +/** + * LWIP_HOOK_MEMP_AVAILABLE(memp_t_type): + * Called from memp_free() when a memp pool was empty and an item is now available + * Signature:\code{.c} + * void my_hook(memp_t type); + * \endcode + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_MEMP_AVAILABLE(memp_t_type) +#endif + +/** + * LWIP_HOOK_UNKNOWN_ETH_PROTOCOL(pbuf, netif): + * Called from ethernet_input() when an unknown eth type is encountered. + * Signature:\code{.c} + * err_t my_hook(struct pbuf* pbuf, struct netif* netif); + * \endcode + * Arguments: + * - p: rx packet with unknown eth type + * - netif: netif on which the packet has been received + * Return values: + * - ERR_OK if packet is accepted (hook function now owns the pbuf) + * - any error code otherwise (pbuf is freed) + * + * Payload points to ethernet header! + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_UNKNOWN_ETH_PROTOCOL(pbuf, netif) +#endif + +/** + * LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, state, msg, msg_type, options_len_ptr): + * Called from various dhcp functions when sending a DHCP message. + * This hook is called just before the DHCP message trailer is added, so the + * options are at the end of a DHCP message. + * Signature:\code{.c} + * void my_hook(struct netif *netif, struct dhcp *dhcp, u8_t state, struct dhcp_msg *msg, + * u8_t msg_type, u16_t *options_len_ptr); + * \endcode + * Arguments: + * - netif: struct netif that the packet will be sent through + * - dhcp: struct dhcp on that netif + * - state: current dhcp state (dhcp_state_enum_t as an u8_t) + * - msg: struct dhcp_msg that will be sent + * - msg_type: dhcp message type to be sent (u8_t) + * - options_len_ptr: pointer to the current length of options in the dhcp_msg "msg" + * (must be increased when options are added!) + * + * Options need to appended like this: + * LWIP_ASSERT("dhcp option overflow", *options_len_ptr + option_len + 2 <= DHCP_OPTIONS_LEN); + * msg->options[(*options_len_ptr)++] = <option_number>; + * msg->options[(*options_len_ptr)++] = <option_len>; + * msg->options[(*options_len_ptr)++] = <option_bytes>; + * [...] + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, state, msg, msg_type, options_len_ptr) +#endif + +/** + * LWIP_HOOK_DHCP_PARSE_OPTION(netif, dhcp, state, msg, msg_type, option, len, pbuf, option_value_offset): + * Called from dhcp_parse_reply when receiving a DHCP message. + * This hook is called for every option in the received message that is not handled internally. + * Signature:\code{.c} + * void my_hook(struct netif *netif, struct dhcp *dhcp, u8_t state, struct dhcp_msg *msg, + * u8_t msg_type, u8_t option, u8_t option_len, struct pbuf *pbuf, u16_t option_value_offset); + * \endcode + * Arguments: + * - netif: struct netif that the packet will be sent through + * - dhcp: struct dhcp on that netif + * - state: current dhcp state (dhcp_state_enum_t as an u8_t) + * - msg: struct dhcp_msg that was received + * - msg_type: dhcp message type received (u8_t, ATTENTION: only valid after + * the message type option has been parsed!) + * - option: option value (u8_t) + * - len: option data length (u8_t) + * - pbuf: pbuf where option data is contained + * - option_value_offset: offset in pbuf where option data begins + * + * A nice way to get the option contents is pbuf_get_contiguous(): + * u8_t buf[32]; + * u8_t *ptr = (u8_t*)pbuf_get_contiguous(p, buf, sizeof(buf), LWIP_MIN(option_len, sizeof(buf)), offset); + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_DHCP_PARSE_OPTION(netif, dhcp, state, msg, msg_type, option, len, pbuf, offset) +#endif + +/** + * LWIP_HOOK_DHCP6_APPEND_OPTIONS(netif, dhcp6, state, msg, msg_type, options_len_ptr, max_len): + * Called from various dhcp6 functions when sending a DHCP6 message. + * This hook is called just before the DHCP6 message is sent, so the + * options are at the end of a DHCP6 message. + * Signature:\code{.c} + * void my_hook(struct netif *netif, struct dhcp6 *dhcp, u8_t state, struct dhcp6_msg *msg, + * u8_t msg_type, u16_t *options_len_ptr); + * \endcode + * Arguments: + * - netif: struct netif that the packet will be sent through + * - dhcp6: struct dhcp6 on that netif + * - state: current dhcp6 state (dhcp6_state_enum_t as an u8_t) + * - msg: struct dhcp6_msg that will be sent + * - msg_type: dhcp6 message type to be sent (u8_t) + * - options_len_ptr: pointer to the current length of options in the dhcp6_msg "msg" + * (must be increased when options are added!) + * + * Options need to appended like this: + * u8_t *options = (u8_t *)(msg + 1); + * LWIP_ASSERT("dhcp option overflow", sizeof(struct dhcp6_msg) + *options_len_ptr + newoptlen <= max_len); + * options[(*options_len_ptr)++] = <option_data>; + * [...] + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_DHCP6_APPEND_OPTIONS(netif, dhcp6, state, msg, msg_type, options_len_ptr, max_len) +#endif + +/** + * LWIP_HOOK_SOCKETS_SETSOCKOPT(s, sock, level, optname, optval, optlen, err) + * Called from socket API to implement setsockopt() for options not provided by lwIP. + * Core lock is held when this hook is called. + * Signature:\code{.c} + * int my_hook(int s, struct lwip_sock *sock, int level, int optname, const void *optval, socklen_t optlen, int *err) + * \endcode + * Arguments: + * - s: socket file descriptor + * - sock: internal socket descriptor (see lwip/priv/sockets_priv.h) + * - level: protocol level at which the option resides + * - optname: option to set + * - optval: value to set + * - optlen: size of optval + * - err: output error + * Return values: + * - 0: Hook has not consumed the option, code continues as normal (to internal options) + * - != 0: Hook has consumed the option, 'err' is returned + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_SOCKETS_SETSOCKOPT(s, sock, level, optname, optval, optlen, err) +#endif + +/** + * LWIP_HOOK_SOCKETS_GETSOCKOPT(s, sock, level, optname, optval, optlen, err) + * Called from socket API to implement getsockopt() for options not provided by lwIP. + * Core lock is held when this hook is called. + * Signature:\code{.c} + * int my_hook(int s, struct lwip_sock *sock, int level, int optname, void *optval, socklen_t *optlen, int *err) + * \endcode + * Arguments: + * - s: socket file descriptor + * - sock: internal socket descriptor (see lwip/priv/sockets_priv.h) + * - level: protocol level at which the option resides + * - optname: option to get + * - optval: value to get + * - optlen: size of optval + * - err: output error + * Return values: + * - 0: Hook has not consumed the option, code continues as normal (to internal options) + * - != 0: Hook has consumed the option, 'err' is returned + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_SOCKETS_GETSOCKOPT(s, sock, level, optname, optval, optlen, err) +#endif + +/** + * LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE(name, addr, addrtype, err) + * Called from netconn APIs (not usable with callback apps) allowing an + * external DNS resolver (which uses sequential API) to handle the query. + * Signature:\code{.c} + * int my_hook(const char *name, ip_addr_t *addr, u8_t addrtype, err_t *err) + * \endcode + * Arguments: + * - name: hostname to resolve + * - addr: output host address + * - addrtype: type of address to query + * - err: output error + * Return values: + * - 0: Hook has not consumed hostname query, query continues into DNS module + * - != 0: Hook has consumed the query + * + * err must also be checked to determine if the hook consumed the query, but + * the query failed + */ +#ifdef __DOXYGEN__ +#define LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE(name, addr, addrtype, err) +#endif +/** + * @} + */ + +/* + --------------------------------------- + ---------- Debugging options ---------- + --------------------------------------- +*/ +/** + * @defgroup lwip_opts_debugmsg Debug messages + * @ingroup lwip_opts_debug + * @{ + */ +/** + * LWIP_DBG_MIN_LEVEL: After masking, the value of the debug is + * compared against this value. If it is smaller, then debugging + * messages are written. + * @see debugging_levels + */ +#if !defined LWIP_DBG_MIN_LEVEL || defined __DOXYGEN__ +#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL +#endif + +/** + * LWIP_DBG_TYPES_ON: A mask that can be used to globally enable/disable + * debug messages of certain types. + * @see debugging_levels + */ +#if !defined LWIP_DBG_TYPES_ON || defined __DOXYGEN__ +#define LWIP_DBG_TYPES_ON LWIP_DBG_ON +#endif + +/** + * ETHARP_DEBUG: Enable debugging in etharp.c. + */ +#if !defined ETHARP_DEBUG || defined __DOXYGEN__ +#define ETHARP_DEBUG LWIP_DBG_OFF +#endif + +/** + * NETIF_DEBUG: Enable debugging in netif.c. + */ +#if !defined NETIF_DEBUG || defined __DOXYGEN__ +#define NETIF_DEBUG LWIP_DBG_OFF +#endif + +/** + * PBUF_DEBUG: Enable debugging in pbuf.c. + */ +#if !defined PBUF_DEBUG || defined __DOXYGEN__ +#define PBUF_DEBUG LWIP_DBG_OFF +#endif + +/** + * API_LIB_DEBUG: Enable debugging in api_lib.c. + */ +#if !defined API_LIB_DEBUG || defined __DOXYGEN__ +#define API_LIB_DEBUG LWIP_DBG_OFF +#endif + +/** + * API_MSG_DEBUG: Enable debugging in api_msg.c. + */ +#if !defined API_MSG_DEBUG || defined __DOXYGEN__ +#define API_MSG_DEBUG LWIP_DBG_OFF +#endif + +/** + * SOCKETS_DEBUG: Enable debugging in sockets.c. + */ +#if !defined SOCKETS_DEBUG || defined __DOXYGEN__ +#define SOCKETS_DEBUG LWIP_DBG_OFF +#endif + +/** + * ICMP_DEBUG: Enable debugging in icmp.c. + */ +#if !defined ICMP_DEBUG || defined __DOXYGEN__ +#define ICMP_DEBUG LWIP_DBG_OFF +#endif + +/** + * IGMP_DEBUG: Enable debugging in igmp.c. + */ +#if !defined IGMP_DEBUG || defined __DOXYGEN__ +#define IGMP_DEBUG LWIP_DBG_OFF +#endif + +/** + * INET_DEBUG: Enable debugging in inet.c. + */ +#if !defined INET_DEBUG || defined __DOXYGEN__ +#define INET_DEBUG LWIP_DBG_OFF +#endif + +/** + * IP_DEBUG: Enable debugging for IP. + */ +#if !defined IP_DEBUG || defined __DOXYGEN__ +#define IP_DEBUG LWIP_DBG_OFF +#endif + +/** + * IP_REASS_DEBUG: Enable debugging in ip_frag.c for both frag & reass. + */ +#if !defined IP_REASS_DEBUG || defined __DOXYGEN__ +#define IP_REASS_DEBUG LWIP_DBG_OFF +#endif + +/** + * RAW_DEBUG: Enable debugging in raw.c. + */ +#if !defined RAW_DEBUG || defined __DOXYGEN__ +#define RAW_DEBUG LWIP_DBG_OFF +#endif + +/** + * MEM_DEBUG: Enable debugging in mem.c. + */ +#if !defined MEM_DEBUG || defined __DOXYGEN__ +#define MEM_DEBUG LWIP_DBG_OFF +#endif + +/** + * MEMP_DEBUG: Enable debugging in memp.c. + */ +#if !defined MEMP_DEBUG || defined __DOXYGEN__ +#define MEMP_DEBUG LWIP_DBG_OFF +#endif + +/** + * SYS_DEBUG: Enable debugging in sys.c. + */ +#if !defined SYS_DEBUG || defined __DOXYGEN__ +#define SYS_DEBUG LWIP_DBG_OFF +#endif + +/** + * TIMERS_DEBUG: Enable debugging in timers.c. + */ +#if !defined TIMERS_DEBUG || defined __DOXYGEN__ +#define TIMERS_DEBUG LWIP_DBG_OFF +#endif + +/** + * TCP_DEBUG: Enable debugging for TCP. + */ +#if !defined TCP_DEBUG || defined __DOXYGEN__ +#define TCP_DEBUG LWIP_DBG_OFF +#endif + +/** + * TCP_INPUT_DEBUG: Enable debugging in tcp_in.c for incoming debug. + */ +#if !defined TCP_INPUT_DEBUG || defined __DOXYGEN__ +#define TCP_INPUT_DEBUG LWIP_DBG_OFF +#endif + +/** + * TCP_FR_DEBUG: Enable debugging in tcp_in.c for fast retransmit. + */ +#if !defined TCP_FR_DEBUG || defined __DOXYGEN__ +#define TCP_FR_DEBUG LWIP_DBG_OFF +#endif + +/** + * TCP_RTO_DEBUG: Enable debugging in TCP for retransmit + * timeout. + */ +#if !defined TCP_RTO_DEBUG || defined __DOXYGEN__ +#define TCP_RTO_DEBUG LWIP_DBG_OFF +#endif + +/** + * TCP_CWND_DEBUG: Enable debugging for TCP congestion window. + */ +#if !defined TCP_CWND_DEBUG || defined __DOXYGEN__ +#define TCP_CWND_DEBUG LWIP_DBG_OFF +#endif + +/** + * TCP_WND_DEBUG: Enable debugging in tcp_in.c for window updating. + */ +#if !defined TCP_WND_DEBUG || defined __DOXYGEN__ +#define TCP_WND_DEBUG LWIP_DBG_OFF +#endif + +/** + * TCP_OUTPUT_DEBUG: Enable debugging in tcp_out.c output functions. + */ +#if !defined TCP_OUTPUT_DEBUG || defined __DOXYGEN__ +#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF +#endif + +/** + * TCP_RST_DEBUG: Enable debugging for TCP with the RST message. + */ +#if !defined TCP_RST_DEBUG || defined __DOXYGEN__ +#define TCP_RST_DEBUG LWIP_DBG_OFF +#endif + +/** + * TCP_QLEN_DEBUG: Enable debugging for TCP queue lengths. + */ +#if !defined TCP_QLEN_DEBUG || defined __DOXYGEN__ +#define TCP_QLEN_DEBUG LWIP_DBG_OFF +#endif + +/** + * UDP_DEBUG: Enable debugging in UDP. + */ +#if !defined UDP_DEBUG || defined __DOXYGEN__ +#define UDP_DEBUG LWIP_DBG_OFF +#endif + +/** + * TCPIP_DEBUG: Enable debugging in tcpip.c. + */ +#if !defined TCPIP_DEBUG || defined __DOXYGEN__ +#define TCPIP_DEBUG LWIP_DBG_OFF +#endif + +/** + * SLIP_DEBUG: Enable debugging in slipif.c. + */ +#if !defined SLIP_DEBUG || defined __DOXYGEN__ +#define SLIP_DEBUG LWIP_DBG_OFF +#endif + +/** + * DHCP_DEBUG: Enable debugging in dhcp.c. + */ +#if !defined DHCP_DEBUG || defined __DOXYGEN__ +#define DHCP_DEBUG LWIP_DBG_OFF +#endif + +/** + * AUTOIP_DEBUG: Enable debugging in autoip.c. + */ +#if !defined AUTOIP_DEBUG || defined __DOXYGEN__ +#define AUTOIP_DEBUG LWIP_DBG_OFF +#endif + +/** + * ACD_DEBUG: Enable debugging in acd.c. + */ +#if !defined ACD_DEBUG || defined __DOXYGEN__ +#define ACD_DEBUG LWIP_DBG_OFF +#endif + +/** + * DNS_DEBUG: Enable debugging for DNS. + */ +#if !defined DNS_DEBUG || defined __DOXYGEN__ +#define DNS_DEBUG LWIP_DBG_OFF +#endif + +/** + * IP6_DEBUG: Enable debugging for IPv6. + */ +#if !defined IP6_DEBUG || defined __DOXYGEN__ +#define IP6_DEBUG LWIP_DBG_OFF +#endif + +/** + * DHCP6_DEBUG: Enable debugging in dhcp6.c. + */ +#if !defined DHCP6_DEBUG || defined __DOXYGEN__ +#define DHCP6_DEBUG LWIP_DBG_OFF +#endif +/** + * @} + */ + +/** + * LWIP_TESTMODE: Changes to make unit test possible + */ +#if !defined LWIP_TESTMODE +#define LWIP_TESTMODE 0 +#endif + +/* + -------------------------------------------------- + ---------- Performance tracking options ---------- + -------------------------------------------------- +*/ +/** + * @defgroup lwip_opts_perf Performance + * @ingroup lwip_opts_debug + * @{ + */ +/** + * LWIP_PERF: Enable performance testing for lwIP + * (if enabled, arch/perf.h is included) + */ +#if !defined LWIP_PERF || defined __DOXYGEN__ +#define LWIP_PERF 0 +#endif +/** + * @} + */ + +#endif /* LWIP_HDR_OPT_H */ diff --git a/middleware/lwip/src/include/lwip/pbuf.h b/middleware/lwip/src/include/lwip/pbuf.h new file mode 100644 index 0000000..5a4fc88 --- /dev/null +++ b/middleware/lwip/src/include/lwip/pbuf.h @@ -0,0 +1,326 @@ +/** + * @file + * pbuf API + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#ifndef LWIP_HDR_PBUF_H +#define LWIP_HDR_PBUF_H + +#include "lwip/opt.h" +#include "lwip/err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** LWIP_SUPPORT_CUSTOM_PBUF==1: Custom pbufs behave much like their pbuf type + * but they are allocated by external code (initialised by calling + * pbuf_alloced_custom()) and when pbuf_free gives up their last reference, they + * are freed by calling pbuf_custom->custom_free_function(). + * Currently, the pbuf_custom code is only needed for one specific configuration + * of IP_FRAG, unless required by external driver/application code. */ +#ifndef LWIP_SUPPORT_CUSTOM_PBUF +#define LWIP_SUPPORT_CUSTOM_PBUF ((IP_FRAG && !LWIP_NETIF_TX_SINGLE_PBUF) || (LWIP_IPV6 && LWIP_IPV6_FRAG)) +#endif + +/** @ingroup pbuf + * PBUF_NEEDS_COPY(p): return a boolean value indicating whether the given + * pbuf needs to be copied in order to be kept around beyond the current call + * stack without risking being corrupted. The default setting provides safety: + * it will make a copy iof any pbuf chain that does not consist entirely of + * PBUF_ROM type pbufs. For setups with zero-copy support, it may be redefined + * to evaluate to true in all cases, for example. However, doing so also has an + * effect on the application side: any buffers that are *not* copied must also + * *not* be reused by the application after passing them to lwIP. For example, + * when setting PBUF_NEEDS_COPY to (0), after using udp_send() with a PBUF_RAM + * pbuf, the application must free the pbuf immediately, rather than reusing it + * for other purposes. For more background information on this, see tasks #6735 + * and #7896, and bugs #11400 and #49914. */ +#ifndef PBUF_NEEDS_COPY +#define PBUF_NEEDS_COPY(p) ((p)->type_internal & PBUF_TYPE_FLAG_DATA_VOLATILE) +#endif /* PBUF_NEEDS_COPY */ + +/* @todo: We need a mechanism to prevent wasting memory in every pbuf + (TCP vs. UDP, IPv4 vs. IPv6: UDP/IPv4 packets may waste up to 28 bytes) */ + +#define PBUF_TRANSPORT_HLEN 20 +#if LWIP_IPV6 +#define PBUF_IP_HLEN 40 +#else +#define PBUF_IP_HLEN 20 +#endif + +/** + * @ingroup pbuf + * Enumeration of pbuf layers + */ +typedef enum { + /** Includes spare room for transport layer header, e.g. UDP header. + * Use this if you intend to pass the pbuf to functions like udp_send(). + */ + PBUF_TRANSPORT = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN, + /** Includes spare room for IP header. + * Use this if you intend to pass the pbuf to functions like raw_send(). + */ + PBUF_IP = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN, + /** Includes spare room for link layer header (ethernet header). + * Use this if you intend to pass the pbuf to functions like ethernet_output(). + * @see PBUF_LINK_HLEN + */ + PBUF_LINK = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN, + /** Includes spare room for additional encapsulation header before ethernet + * headers (e.g. 802.11). + * Use this if you intend to pass the pbuf to functions like netif->linkoutput(). + * @see PBUF_LINK_ENCAPSULATION_HLEN + */ + PBUF_RAW_TX = PBUF_LINK_ENCAPSULATION_HLEN, + /** Use this for input packets in a netif driver when calling netif->input() + * in the most common case - ethernet-layer netif driver. */ + PBUF_RAW = 0 +} pbuf_layer; + + +/* Base flags for pbuf_type definitions: */ + +/** Indicates that the payload directly follows the struct pbuf. + * This makes @ref pbuf_header work in both directions. */ +#define PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS 0x80 +/** Indicates the data stored in this pbuf can change. If this pbuf needs + * to be queued, it must be copied/duplicated. */ +#define PBUF_TYPE_FLAG_DATA_VOLATILE 0x40 +/** 4 bits are reserved for 16 allocation sources (e.g. heap, pool1, pool2, etc) + * Internally, we use: 0=heap, 1=MEMP_PBUF, 2=MEMP_PBUF_POOL -> 13 types free*/ +#define PBUF_TYPE_ALLOC_SRC_MASK 0x0F +/** Indicates this pbuf is used for RX (if not set, indicates use for TX). + * This information can be used to keep some spare RX buffers e.g. for + * receiving TCP ACKs to unblock a connection) */ +#define PBUF_ALLOC_FLAG_RX 0x0100 +/** Indicates the application needs the pbuf payload to be in one piece */ +#define PBUF_ALLOC_FLAG_DATA_CONTIGUOUS 0x0200 + +#define PBUF_TYPE_ALLOC_SRC_MASK_STD_HEAP 0x00 +#define PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF 0x01 +#define PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF_POOL 0x02 +/** First pbuf allocation type for applications */ +#define PBUF_TYPE_ALLOC_SRC_MASK_APP_MIN 0x03 +/** Last pbuf allocation type for applications */ +#define PBUF_TYPE_ALLOC_SRC_MASK_APP_MAX PBUF_TYPE_ALLOC_SRC_MASK + +/** + * @ingroup pbuf + * Enumeration of pbuf types + */ +typedef enum { + /** pbuf data is stored in RAM, used for TX mostly, struct pbuf and its payload + are allocated in one piece of contiguous memory (so the first payload byte + can be calculated from struct pbuf). + pbuf_alloc() allocates PBUF_RAM pbufs as unchained pbufs (although that might + change in future versions). + This should be used for all OUTGOING packets (TX).*/ + PBUF_RAM = (PBUF_ALLOC_FLAG_DATA_CONTIGUOUS | PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS | PBUF_TYPE_ALLOC_SRC_MASK_STD_HEAP), + /** pbuf data is stored in ROM, i.e. struct pbuf and its payload are located in + totally different memory areas. Since it points to ROM, payload does not + have to be copied when queued for transmission. */ + PBUF_ROM = PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF, + /** pbuf comes from the pbuf pool. Much like PBUF_ROM but payload might change + so it has to be duplicated when queued before transmitting, depending on + who has a 'ref' to it. */ + PBUF_REF = (PBUF_TYPE_FLAG_DATA_VOLATILE | PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF), + /** pbuf payload refers to RAM. This one comes from a pool and should be used + for RX. Payload can be chained (scatter-gather RX) but like PBUF_RAM, struct + pbuf and its payload are allocated in one piece of contiguous memory (so + the first payload byte can be calculated from struct pbuf). + Don't use this for TX, if the pool becomes empty e.g. because of TCP queuing, + you are unable to receive TCP acks! */ + PBUF_POOL = (PBUF_ALLOC_FLAG_RX | PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS | PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF_POOL) +} pbuf_type; + + +/** indicates this packet's data should be immediately passed to the application */ +#define PBUF_FLAG_PUSH 0x01U +/** indicates this is a custom pbuf: pbuf_free calls pbuf_custom->custom_free_function() + when the last reference is released (plus custom PBUF_RAM cannot be trimmed) */ +#define PBUF_FLAG_IS_CUSTOM 0x02U +/** indicates this pbuf is UDP multicast to be looped back */ +#define PBUF_FLAG_MCASTLOOP 0x04U +/** indicates this pbuf was received as link-level broadcast */ +#define PBUF_FLAG_LLBCAST 0x08U +/** indicates this pbuf was received as link-level multicast */ +#define PBUF_FLAG_LLMCAST 0x10U +/** indicates this pbuf includes a TCP FIN flag */ +#define PBUF_FLAG_TCP_FIN 0x20U + +/** Main packet buffer struct */ +struct pbuf { + /** next pbuf in singly linked pbuf chain */ + struct pbuf *next; + + /** pointer to the actual data in the buffer */ + void *payload; + + /** + * total length of this buffer and all next buffers in chain + * belonging to the same packet. + * + * For non-queue packet chains this is the invariant: + * p->tot_len == p->len + (p->next? p->next->tot_len: 0) + */ + u16_t tot_len; + + /** length of this buffer */ + u16_t len; + + /** a bit field indicating pbuf type and allocation sources + (see PBUF_TYPE_FLAG_*, PBUF_ALLOC_FLAG_* and PBUF_TYPE_ALLOC_SRC_MASK) + */ + u8_t type_internal; + + /** misc flags */ + u8_t flags; + + /** + * the reference count always equals the number of pointers + * that refer to this pbuf. This can be pointers from an application, + * the stack itself, or pbuf->next pointers from a chain. + */ + LWIP_PBUF_REF_T ref; + + /** For incoming packets, this contains the input netif's index */ + u8_t if_idx; + + /** In case the user needs to store data custom data on a pbuf */ + LWIP_PBUF_CUSTOM_DATA +}; + + +/** Helper struct for const-correctness only. + * The only meaning of this one is to provide a const payload pointer + * for PBUF_ROM type. + */ +struct pbuf_rom { + /** next pbuf in singly linked pbuf chain */ + struct pbuf *next; + + /** pointer to the actual data in the buffer */ + const void *payload; +}; + +#if LWIP_SUPPORT_CUSTOM_PBUF +/** Prototype for a function to free a custom pbuf */ +typedef void (*pbuf_free_custom_fn)(struct pbuf *p); + +/** A custom pbuf: like a pbuf, but following a function pointer to free it. */ +struct pbuf_custom { + /** The actual pbuf */ + struct pbuf pbuf; + /** This function is called when pbuf_free deallocates this pbuf(_custom) */ + pbuf_free_custom_fn custom_free_function; +}; +#endif /* LWIP_SUPPORT_CUSTOM_PBUF */ + +/** Define this to 0 to prevent freeing ooseq pbufs when the PBUF_POOL is empty */ +#ifndef PBUF_POOL_FREE_OOSEQ +#define PBUF_POOL_FREE_OOSEQ 1 +#endif /* PBUF_POOL_FREE_OOSEQ */ +#if LWIP_TCP && TCP_QUEUE_OOSEQ && NO_SYS && PBUF_POOL_FREE_OOSEQ +extern volatile u8_t pbuf_free_ooseq_pending; +void pbuf_free_ooseq(void); +/** When not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ() + at regular intervals from main level to check if ooseq pbufs need to be + freed! */ +#define PBUF_CHECK_FREE_OOSEQ() do { if(pbuf_free_ooseq_pending) { \ + /* pbuf_alloc() reported PBUF_POOL to be empty -> try to free some \ + ooseq queued pbufs now */ \ + pbuf_free_ooseq(); }}while(0) +#else /* LWIP_TCP && TCP_QUEUE_OOSEQ && NO_SYS && PBUF_POOL_FREE_OOSEQ */ + /* Otherwise declare an empty PBUF_CHECK_FREE_OOSEQ */ + #define PBUF_CHECK_FREE_OOSEQ() +#endif /* LWIP_TCP && TCP_QUEUE_OOSEQ && NO_SYS && PBUF_POOL_FREE_OOSEQ*/ + +/* Initializes the pbuf module. This call is empty for now, but may not be in future. */ +#define pbuf_init() + +struct pbuf *pbuf_alloc(pbuf_layer l, u16_t length, pbuf_type type); +struct pbuf *pbuf_alloc_reference(void *payload, u16_t length, pbuf_type type); +#if LWIP_SUPPORT_CUSTOM_PBUF +struct pbuf *pbuf_alloced_custom(pbuf_layer l, u16_t length, pbuf_type type, + struct pbuf_custom *p, void *payload_mem, + u16_t payload_mem_len); +#endif /* LWIP_SUPPORT_CUSTOM_PBUF */ +void pbuf_realloc(struct pbuf *p, u16_t size); +#define pbuf_get_allocsrc(p) ((p)->type_internal & PBUF_TYPE_ALLOC_SRC_MASK) +#define pbuf_match_allocsrc(p, type) (pbuf_get_allocsrc(p) == ((type) & PBUF_TYPE_ALLOC_SRC_MASK)) +#define pbuf_match_type(p, type) pbuf_match_allocsrc(p, type) +u8_t pbuf_header(struct pbuf *p, s16_t header_size); +u8_t pbuf_header_force(struct pbuf *p, s16_t header_size); +u8_t pbuf_add_header(struct pbuf *p, size_t header_size_increment); +u8_t pbuf_add_header_force(struct pbuf *p, size_t header_size_increment); +u8_t pbuf_remove_header(struct pbuf *p, size_t header_size); +struct pbuf *pbuf_free_header(struct pbuf *q, u16_t size); +void pbuf_ref(struct pbuf *p); +u8_t pbuf_free(struct pbuf *p); +u16_t pbuf_clen(const struct pbuf *p); +void pbuf_cat(struct pbuf *head, struct pbuf *tail); +void pbuf_chain(struct pbuf *head, struct pbuf *tail); +struct pbuf *pbuf_dechain(struct pbuf *p); +err_t pbuf_copy(struct pbuf *p_to, const struct pbuf *p_from); +err_t pbuf_copy_partial_pbuf(struct pbuf *p_to, const struct pbuf *p_from, u16_t copy_len, u16_t offset); +u16_t pbuf_copy_partial(const struct pbuf *p, void *dataptr, u16_t len, u16_t offset); +void *pbuf_get_contiguous(const struct pbuf *p, void *buffer, size_t bufsize, u16_t len, u16_t offset); +err_t pbuf_take(struct pbuf *buf, const void *dataptr, u16_t len); +err_t pbuf_take_at(struct pbuf *buf, const void *dataptr, u16_t len, u16_t offset); +struct pbuf *pbuf_skip(struct pbuf* in, u16_t in_offset, u16_t* out_offset); +struct pbuf *pbuf_coalesce(struct pbuf *p, pbuf_layer layer); +struct pbuf *pbuf_clone(pbuf_layer l, pbuf_type type, struct pbuf *p); +#if LWIP_CHECKSUM_ON_COPY +err_t pbuf_fill_chksum(struct pbuf *p, u16_t start_offset, const void *dataptr, + u16_t len, u16_t *chksum); +#endif /* LWIP_CHECKSUM_ON_COPY */ +#if LWIP_TCP && TCP_QUEUE_OOSEQ && LWIP_WND_SCALE +void pbuf_split_64k(struct pbuf *p, struct pbuf **rest); +#endif /* LWIP_TCP && TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ + +u8_t pbuf_get_at(const struct pbuf* p, u16_t offset); +int pbuf_try_get_at(const struct pbuf* p, u16_t offset); +void pbuf_put_at(struct pbuf* p, u16_t offset, u8_t data); +u16_t pbuf_memcmp(const struct pbuf* p, u16_t offset, const void* s2, u16_t n); +u16_t pbuf_memfind(const struct pbuf* p, const void* mem, u16_t mem_len, u16_t start_offset); +u16_t pbuf_strstr(const struct pbuf* p, const char* substr); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PBUF_H */ diff --git a/middleware/lwip/src/include/lwip/priv/altcp_priv.h b/middleware/lwip/src/include/lwip/priv/altcp_priv.h new file mode 100644 index 0000000..50e6b97 --- /dev/null +++ b/middleware/lwip/src/include/lwip/priv/altcp_priv.h @@ -0,0 +1,159 @@ +/** + * @file + * Application layered TCP connection API (to be used from TCPIP thread)
+ * This interface mimics the tcp callback API to the application while preventing + * direct linking (much like virtual functions). + * This way, an application can make use of other application layer protocols + * on top of TCP without knowing the details (e.g. TLS, proxy connection). + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_ALTCP_PRIV_H +#define LWIP_HDR_ALTCP_PRIV_H + +#include "lwip/opt.h" + +#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/altcp.h" +#include "lwip/ip_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct altcp_pcb *altcp_alloc(void); +void altcp_free(struct altcp_pcb *conn); + +/* Function prototypes for application layers */ +typedef void (*altcp_set_poll_fn)(struct altcp_pcb *conn, u8_t interval); +typedef void (*altcp_recved_fn)(struct altcp_pcb *conn, u16_t len); +typedef err_t (*altcp_bind_fn)(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port); +typedef err_t (*altcp_connect_fn)(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected); + +typedef struct altcp_pcb *(*altcp_listen_fn)(struct altcp_pcb *conn, u8_t backlog, err_t *err); + +typedef void (*altcp_abort_fn)(struct altcp_pcb *conn); +typedef err_t (*altcp_close_fn)(struct altcp_pcb *conn); +typedef err_t (*altcp_shutdown_fn)(struct altcp_pcb *conn, int shut_rx, int shut_tx); + +typedef err_t (*altcp_write_fn)(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags); +typedef err_t (*altcp_output_fn)(struct altcp_pcb *conn); + +typedef u16_t (*altcp_mss_fn)(struct altcp_pcb *conn); +typedef u16_t (*altcp_sndbuf_fn)(struct altcp_pcb *conn); +typedef u16_t (*altcp_sndqueuelen_fn)(struct altcp_pcb *conn); +typedef void (*altcp_nagle_disable_fn)(struct altcp_pcb *conn); +typedef void (*altcp_nagle_enable_fn)(struct altcp_pcb *conn); +typedef int (*altcp_nagle_disabled_fn)(struct altcp_pcb *conn); + +typedef void (*altcp_setprio_fn)(struct altcp_pcb *conn, u8_t prio); + +typedef void (*altcp_dealloc_fn)(struct altcp_pcb *conn); + +typedef err_t (*altcp_get_tcp_addrinfo_fn)(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port); +typedef ip_addr_t *(*altcp_get_ip_fn)(struct altcp_pcb *conn, int local); +typedef u16_t (*altcp_get_port_fn)(struct altcp_pcb *conn, int local); + +#if LWIP_TCP_KEEPALIVE +typedef void (*altcp_keepalive_disable_fn)(struct altcp_pcb *conn); +typedef void (*altcp_keepalive_enable_fn)(struct altcp_pcb *conn, u32_t idle, u32_t intvl, u32_t count); +#endif + +#ifdef LWIP_DEBUG +typedef enum tcp_state (*altcp_dbg_get_tcp_state_fn)(struct altcp_pcb *conn); +#endif + +struct altcp_functions { + altcp_set_poll_fn set_poll; + altcp_recved_fn recved; + altcp_bind_fn bind; + altcp_connect_fn connect; + altcp_listen_fn listen; + altcp_abort_fn abort; + altcp_close_fn close; + altcp_shutdown_fn shutdown; + altcp_write_fn write; + altcp_output_fn output; + altcp_mss_fn mss; + altcp_sndbuf_fn sndbuf; + altcp_sndqueuelen_fn sndqueuelen; + altcp_nagle_disable_fn nagle_disable; + altcp_nagle_enable_fn nagle_enable; + altcp_nagle_disabled_fn nagle_disabled; + altcp_setprio_fn setprio; + altcp_dealloc_fn dealloc; + altcp_get_tcp_addrinfo_fn addrinfo; + altcp_get_ip_fn getip; + altcp_get_port_fn getport; +#if LWIP_TCP_KEEPALIVE + altcp_keepalive_disable_fn keepalive_disable; + altcp_keepalive_enable_fn keepalive_enable; +#endif +#ifdef LWIP_DEBUG + altcp_dbg_get_tcp_state_fn dbg_get_tcp_state; +#endif +}; + +void altcp_default_set_poll(struct altcp_pcb *conn, u8_t interval); +void altcp_default_recved(struct altcp_pcb *conn, u16_t len); +err_t altcp_default_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port); +err_t altcp_default_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx); +err_t altcp_default_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags); +err_t altcp_default_output(struct altcp_pcb *conn); +u16_t altcp_default_mss(struct altcp_pcb *conn); +u16_t altcp_default_sndbuf(struct altcp_pcb *conn); +u16_t altcp_default_sndqueuelen(struct altcp_pcb *conn); +void altcp_default_nagle_disable(struct altcp_pcb *conn); +void altcp_default_nagle_enable(struct altcp_pcb *conn); +int altcp_default_nagle_disabled(struct altcp_pcb *conn); +void altcp_default_setprio(struct altcp_pcb *conn, u8_t prio); +void altcp_default_dealloc(struct altcp_pcb *conn); +err_t altcp_default_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port); +ip_addr_t *altcp_default_get_ip(struct altcp_pcb *conn, int local); +u16_t altcp_default_get_port(struct altcp_pcb *conn, int local); +#if LWIP_TCP_KEEPALIVE +void altcp_default_keepalive_disable(struct altcp_pcb *conn); +void altcp_default_keepalive_enable(struct altcp_pcb *conn, u32_t idle, u32_t intvl, u32_t count); +#endif +#ifdef LWIP_DEBUG +enum tcp_state altcp_default_dbg_get_tcp_state(struct altcp_pcb *conn); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_ALTCP */ + +#endif /* LWIP_HDR_ALTCP_PRIV_H */ diff --git a/middleware/lwip/src/include/lwip/priv/api_msg.h b/middleware/lwip/src/include/lwip/priv/api_msg.h new file mode 100644 index 0000000..9e8ffc9 --- /dev/null +++ b/middleware/lwip/src/include/lwip/priv/api_msg.h @@ -0,0 +1,272 @@ +/** + * @file + * netconn API lwIP internal implementations (do not use in application code) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_API_MSG_H +#define LWIP_HDR_API_MSG_H + +#include "lwip/opt.h" + +#include "lwip/arch.h" +#include "lwip/ip_addr.h" +#include "lwip/err.h" +#include "lwip/sys.h" +#include "lwip/igmp.h" +#include "lwip/api.h" +#include "lwip/priv/tcpip_priv.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_NETCONN || LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ +/* Note: Netconn API is always available when sockets are enabled - + * sockets are implemented on top of them */ + +#if LWIP_MPU_COMPATIBLE +#if LWIP_NETCONN_SEM_PER_THREAD +#define API_MSG_M_DEF_SEM(m) *m +#else +#define API_MSG_M_DEF_SEM(m) API_MSG_M_DEF(m) +#endif +#else /* LWIP_MPU_COMPATIBLE */ +#define API_MSG_M_DEF_SEM(m) API_MSG_M_DEF(m) +#endif /* LWIP_MPU_COMPATIBLE */ + +/* For the netconn API, these values are use as a bitmask! */ +#define NETCONN_SHUT_RD 1 +#define NETCONN_SHUT_WR 2 +#define NETCONN_SHUT_RDWR (NETCONN_SHUT_RD | NETCONN_SHUT_WR) + +/* IP addresses and port numbers are expected to be in + * the same byte order as in the corresponding pcb. + */ +/** This struct includes everything that is necessary to execute a function + for a netconn in another thread context (mainly used to process netconns + in the tcpip_thread context to be thread safe). */ +struct api_msg { + /** The netconn which to process - always needed: it includes the semaphore + which is used to block the application thread until the function finished. */ + struct netconn *conn; + /** The return value of the function executed in tcpip_thread. */ + err_t err; + /** Depending on the executed function, one of these union members is used */ + union { + /** used for lwip_netconn_do_send */ + struct netbuf *b; + /** used for lwip_netconn_do_newconn */ + struct { + u8_t proto; + } n; + /** used for lwip_netconn_do_bind and lwip_netconn_do_connect */ + struct { + API_MSG_M_DEF_C(ip_addr_t, ipaddr); + u16_t port; + u8_t if_idx; + } bc; + /** used for lwip_netconn_do_getaddr */ + struct { + ip_addr_t API_MSG_M_DEF(ipaddr); + u16_t API_MSG_M_DEF(port); + u8_t local; + } ad; + /** used for lwip_netconn_do_write */ + struct { + /** current vector to write */ + const struct netvector *vector; + /** number of unwritten vectors */ + u16_t vector_cnt; + /** offset into current vector */ + size_t vector_off; + /** total length across vectors */ + size_t len; + /** offset into total length/output of bytes written when err == ERR_OK */ + size_t offset; + u8_t apiflags; +#if LWIP_SO_SNDTIMEO + u32_t time_started; +#endif /* LWIP_SO_SNDTIMEO */ + } w; + /** used for lwip_netconn_do_recv */ + struct { + size_t len; + } r; +#if LWIP_TCP + /** used for lwip_netconn_do_close (/shutdown) */ + struct { + u8_t shut; +#if LWIP_SO_SNDTIMEO || LWIP_SO_LINGER + u32_t time_started; +#else /* LWIP_SO_SNDTIMEO || LWIP_SO_LINGER */ + u8_t polls_left; +#endif /* LWIP_SO_SNDTIMEO || LWIP_SO_LINGER */ + } sd; +#endif /* LWIP_TCP */ +#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) + /** used for lwip_netconn_do_join_leave_group */ + struct { + API_MSG_M_DEF_C(ip_addr_t, multiaddr); + API_MSG_M_DEF_C(ip_addr_t, netif_addr); + u8_t if_idx; + enum netconn_igmp join_or_leave; + } jl; +#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */ +#if TCP_LISTEN_BACKLOG + struct { + u8_t backlog; + } lb; +#endif /* TCP_LISTEN_BACKLOG */ + } msg; +#if LWIP_NETCONN_SEM_PER_THREAD + sys_sem_t* op_completed_sem; +#endif /* LWIP_NETCONN_SEM_PER_THREAD */ +}; + +#if LWIP_NETCONN_SEM_PER_THREAD +#define LWIP_API_MSG_SEM(msg) ((msg)->op_completed_sem) +#else /* LWIP_NETCONN_SEM_PER_THREAD */ +#define LWIP_API_MSG_SEM(msg) (&(msg)->conn->op_completed) +#endif /* LWIP_NETCONN_SEM_PER_THREAD */ + + +#if LWIP_DNS +/** As lwip_netconn_do_gethostbyname requires more arguments but doesn't require a netconn, + it has its own struct (to avoid struct api_msg getting bigger than necessary). + lwip_netconn_do_gethostbyname must be called using tcpip_callback instead of tcpip_apimsg + (see netconn_gethostbyname). */ +struct dns_api_msg { + /** Hostname to query or dotted IP address string */ +#if LWIP_MPU_COMPATIBLE + char name[DNS_MAX_NAME_LENGTH]; +#else /* LWIP_MPU_COMPATIBLE */ + const char *name; +#endif /* LWIP_MPU_COMPATIBLE */ + /** The resolved address is stored here */ + ip_addr_t API_MSG_M_DEF(addr); +#if LWIP_IPV4 && LWIP_IPV6 + /** Type of resolve call */ + u8_t dns_addrtype; +#endif /* LWIP_IPV4 && LWIP_IPV6 */ + /** This semaphore is posted when the name is resolved, the application thread + should wait on it. */ + sys_sem_t API_MSG_M_DEF_SEM(sem); + /** Errors are given back here */ + err_t API_MSG_M_DEF(err); +}; +#endif /* LWIP_DNS */ + +#if LWIP_NETCONN_FULLDUPLEX +int lwip_netconn_is_deallocated_msg(void *msg); +#endif +int lwip_netconn_is_err_msg(void *msg, err_t *err); +void lwip_netconn_do_newconn (void *m); +void lwip_netconn_do_delconn (void *m); +void lwip_netconn_do_bind (void *m); +void lwip_netconn_do_bind_if (void *m); +void lwip_netconn_do_connect (void *m); +void lwip_netconn_do_disconnect (void *m); +void lwip_netconn_do_listen (void *m); +void lwip_netconn_do_send (void *m); +void lwip_netconn_do_recv (void *m); +#if TCP_LISTEN_BACKLOG +void lwip_netconn_do_accepted (void *m); +#endif /* TCP_LISTEN_BACKLOG */ +void lwip_netconn_do_write (void *m); +void lwip_netconn_do_getaddr (void *m); +void lwip_netconn_do_close (void *m); +void lwip_netconn_do_shutdown (void *m); +#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) +void lwip_netconn_do_join_leave_group(void *m); +void lwip_netconn_do_join_leave_group_netif(void *m); +#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */ + +#if LWIP_DNS +void lwip_netconn_do_gethostbyname(void *arg); +#endif /* LWIP_DNS */ + +struct netconn* netconn_alloc(enum netconn_type t, netconn_callback callback); +void netconn_free(struct netconn *conn); + +#endif /* LWIP_NETCONN || LWIP_SOCKET */ + +#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */ + +/* netifapi related lwIP internal definitions */ + +#if LWIP_MPU_COMPATIBLE +#define NETIFAPI_IPADDR_DEF(type, m) type m +#else /* LWIP_MPU_COMPATIBLE */ +#define NETIFAPI_IPADDR_DEF(type, m) const type * m +#endif /* LWIP_MPU_COMPATIBLE */ + +typedef void (*netifapi_void_fn)(struct netif *netif); +typedef err_t (*netifapi_errt_fn)(struct netif *netif); + +struct netifapi_msg { + struct tcpip_api_call_data call; + struct netif *netif; + union { + struct { +#if LWIP_IPV4 + NETIFAPI_IPADDR_DEF(ip4_addr_t, ipaddr); + NETIFAPI_IPADDR_DEF(ip4_addr_t, netmask); + NETIFAPI_IPADDR_DEF(ip4_addr_t, gw); +#endif /* LWIP_IPV4 */ + void *state; + netif_init_fn init; + netif_input_fn input; + } add; + struct { + netifapi_void_fn voidfunc; + netifapi_errt_fn errtfunc; + } common; + struct { +#if LWIP_MPU_COMPATIBLE + char name[NETIF_NAMESIZE]; +#else /* LWIP_MPU_COMPATIBLE */ + char *name; +#endif /* LWIP_MPU_COMPATIBLE */ + u8_t index; + } ifs; + } msg; +}; + +#endif /* LWIP_NETIF_API */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_API_MSG_H */ diff --git a/middleware/lwip/src/include/lwip/priv/mem_priv.h b/middleware/lwip/src/include/lwip/priv/mem_priv.h new file mode 100644 index 0000000..8630d75 --- /dev/null +++ b/middleware/lwip/src/include/lwip/priv/mem_priv.h @@ -0,0 +1,84 @@ +/** + * @file + * lwIP internal memory implementations (do not use in application code) + */ + +/* + * Copyright (c) 2018 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_MEM_PRIV_H +#define LWIP_HDR_MEM_PRIV_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#include "lwip/mem.h" + +#if MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK +/* if MEM_OVERFLOW_CHECK or MEMP_OVERFLOW_CHECK is turned on, we reserve some + * bytes at the beginning and at the end of each element, initialize them as + * 0xcd and check them later. + * If MEM(P)_OVERFLOW_CHECK is >= 2, on every call to mem(p)_malloc or mem(p)_free, + * every single element in each pool/heap is checked! + * This is VERY SLOW but also very helpful. + * MEM_SANITY_REGION_BEFORE and MEM_SANITY_REGION_AFTER can be overridden in + * lwipopts.h to change the amount reserved for checking. */ +#ifndef MEM_SANITY_REGION_BEFORE +#define MEM_SANITY_REGION_BEFORE 16 +#endif /* MEM_SANITY_REGION_BEFORE*/ +#if MEM_SANITY_REGION_BEFORE > 0 +#define MEM_SANITY_REGION_BEFORE_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SANITY_REGION_BEFORE) +#else +#define MEM_SANITY_REGION_BEFORE_ALIGNED 0 +#endif /* MEM_SANITY_REGION_BEFORE*/ +#ifndef MEM_SANITY_REGION_AFTER +#define MEM_SANITY_REGION_AFTER 16 +#endif /* MEM_SANITY_REGION_AFTER*/ +#if MEM_SANITY_REGION_AFTER > 0 +#define MEM_SANITY_REGION_AFTER_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SANITY_REGION_AFTER) +#else +#define MEM_SANITY_REGION_AFTER_ALIGNED 0 +#endif /* MEM_SANITY_REGION_AFTER*/ + +void mem_overflow_init_raw(void *p, size_t size); +void mem_overflow_check_raw(void *p, size_t size, const char *descr1, const char *descr2); + +#endif /* MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_MEMP_PRIV_H */ diff --git a/middleware/lwip/src/include/lwip/priv/memp_priv.h b/middleware/lwip/src/include/lwip/priv/memp_priv.h new file mode 100644 index 0000000..1f14cb1 --- /dev/null +++ b/middleware/lwip/src/include/lwip/priv/memp_priv.h @@ -0,0 +1,161 @@ +/** + * @file + * memory pools lwIP internal implementations (do not use in application code) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#ifndef LWIP_HDR_MEMP_PRIV_H +#define LWIP_HDR_MEMP_PRIV_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#include "lwip/mem.h" +#include "lwip/priv/mem_priv.h" + +#if MEMP_OVERFLOW_CHECK + + +/* MEMP_SIZE: save space for struct memp and for sanity check */ +#define MEMP_SIZE (LWIP_MEM_ALIGN_SIZE(sizeof(struct memp)) + MEM_SANITY_REGION_BEFORE_ALIGNED) +#define MEMP_ALIGN_SIZE(x) (LWIP_MEM_ALIGN_SIZE(x) + MEM_SANITY_REGION_AFTER_ALIGNED) + +#else /* MEMP_OVERFLOW_CHECK */ + +/* No sanity checks + * We don't need to preserve the struct memp while not allocated, so we + * can save a little space and set MEMP_SIZE to 0. + */ +#define MEMP_SIZE 0 +#define MEMP_ALIGN_SIZE(x) (LWIP_MEM_ALIGN_SIZE(x)) + +#endif /* MEMP_OVERFLOW_CHECK */ + +#if !MEMP_MEM_MALLOC || MEMP_OVERFLOW_CHECK +struct memp { + struct memp *next; +#if MEMP_OVERFLOW_CHECK + const char *file; + int line; +#endif /* MEMP_OVERFLOW_CHECK */ +}; +#endif /* !MEMP_MEM_MALLOC || MEMP_OVERFLOW_CHECK */ + +#if MEM_USE_POOLS && MEMP_USE_CUSTOM_POOLS +/* Use a helper type to get the start and end of the user "memory pools" for mem_malloc */ +typedef enum { + /* Get the first (via: + MEMP_POOL_HELPER_START = ((u8_t) 1*MEMP_POOL_A + 0*MEMP_POOL_B + 0*MEMP_POOL_C + 0)*/ + MEMP_POOL_HELPER_FIRST = ((u8_t) +#define LWIP_MEMPOOL(name,num,size,desc) +#define LWIP_MALLOC_MEMPOOL_START 1 +#define LWIP_MALLOC_MEMPOOL(num, size) * MEMP_POOL_##size + 0 +#define LWIP_MALLOC_MEMPOOL_END +#include "lwip/priv/memp_std.h" + ) , + /* Get the last (via: + MEMP_POOL_HELPER_END = ((u8_t) 0 + MEMP_POOL_A*0 + MEMP_POOL_B*0 + MEMP_POOL_C*1) */ + MEMP_POOL_HELPER_LAST = ((u8_t) +#define LWIP_MEMPOOL(name,num,size,desc) +#define LWIP_MALLOC_MEMPOOL_START +#define LWIP_MALLOC_MEMPOOL(num, size) 0 + MEMP_POOL_##size * +#define LWIP_MALLOC_MEMPOOL_END 1 +#include "lwip/priv/memp_std.h" + ) +} memp_pool_helper_t; + +/* The actual start and stop values are here (cast them over) + We use this helper type and these defines so we can avoid using const memp_t values */ +#define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST) +#define MEMP_POOL_LAST ((memp_t) MEMP_POOL_HELPER_LAST) +#endif /* MEM_USE_POOLS && MEMP_USE_CUSTOM_POOLS */ + +/** Memory pool descriptor */ +struct memp_desc { +#if defined(LWIP_DEBUG) || MEMP_OVERFLOW_CHECK || LWIP_STATS_DISPLAY + /** Textual description */ + const char *desc; +#endif /* LWIP_DEBUG || MEMP_OVERFLOW_CHECK || LWIP_STATS_DISPLAY */ +#if MEMP_STATS + /** Statistics */ + struct stats_mem *stats; +#endif + + /** Element size */ + u16_t size; + +#if !MEMP_MEM_MALLOC + /** Number of elements */ + u16_t num; + + /** Base address */ + u8_t *base; + + /** First free element of each pool. Elements form a linked list. */ + struct memp **tab; +#endif /* MEMP_MEM_MALLOC */ +}; + +#if defined(LWIP_DEBUG) || MEMP_OVERFLOW_CHECK || LWIP_STATS_DISPLAY +#define DECLARE_LWIP_MEMPOOL_DESC(desc) (desc), +#else +#define DECLARE_LWIP_MEMPOOL_DESC(desc) +#endif + +#if MEMP_STATS +#define LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(name) static struct stats_mem name; +#define LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(name) &name, +#else +#define LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(name) +#define LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(name) +#endif + +void memp_init_pool(const struct memp_desc *desc); + +#if MEMP_OVERFLOW_CHECK +void *memp_malloc_pool_fn(const struct memp_desc* desc, const char* file, const int line); +#define memp_malloc_pool(d) memp_malloc_pool_fn((d), __FILE__, __LINE__) +#else +void *memp_malloc_pool(const struct memp_desc *desc); +#endif +void memp_free_pool(const struct memp_desc* desc, void *mem); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_MEMP_PRIV_H */ diff --git a/middleware/lwip/src/include/lwip/priv/memp_std.h b/middleware/lwip/src/include/lwip/priv/memp_std.h new file mode 100644 index 0000000..669ad4d --- /dev/null +++ b/middleware/lwip/src/include/lwip/priv/memp_std.h @@ -0,0 +1,153 @@ +/** + * @file + * lwIP internal memory pools (do not use in application code) + * This file is deliberately included multiple times: once with empty + * definition of LWIP_MEMPOOL() to handle all includes and multiple times + * to build up various lists of mem pools. + */ + +/* + * SETUP: Make sure we define everything we will need. + * + * We have create three types of pools: + * 1) MEMPOOL - standard pools + * 2) MALLOC_MEMPOOL - to be used by mem_malloc in mem.c + * 3) PBUF_MEMPOOL - a mempool of pbuf's, so include space for the pbuf struct + * + * If the include'r doesn't require any special treatment of each of the types + * above, then will declare #2 & #3 to be just standard mempools. + */ +#ifndef LWIP_MALLOC_MEMPOOL +/* This treats "malloc pools" just like any other pool. + The pools are a little bigger to provide 'size' as the amount of user data. */ +#define LWIP_MALLOC_MEMPOOL(num, size) LWIP_MEMPOOL(POOL_##size, num, (size + LWIP_MEM_ALIGN_SIZE(sizeof(struct memp_malloc_helper))), "MALLOC_"#size) +#define LWIP_MALLOC_MEMPOOL_START +#define LWIP_MALLOC_MEMPOOL_END +#endif /* LWIP_MALLOC_MEMPOOL */ + +#ifndef LWIP_PBUF_MEMPOOL +/* This treats "pbuf pools" just like any other pool. + * Allocates buffers for a pbuf struct AND a payload size */ +#define LWIP_PBUF_MEMPOOL(name, num, payload, desc) LWIP_MEMPOOL(name, num, (LWIP_MEM_ALIGN_SIZE(sizeof(struct pbuf)) + LWIP_MEM_ALIGN_SIZE(payload)), desc) +#endif /* LWIP_PBUF_MEMPOOL */ + + +/* + * A list of internal pools used by LWIP. + * + * LWIP_MEMPOOL(pool_name, number_elements, element_size, pool_description) + * creates a pool name MEMP_pool_name. description is used in stats.c + */ +#if LWIP_RAW +LWIP_MEMPOOL(RAW_PCB, MEMP_NUM_RAW_PCB, sizeof(struct raw_pcb), "RAW_PCB") +#endif /* LWIP_RAW */ + +#if LWIP_UDP +LWIP_MEMPOOL(UDP_PCB, MEMP_NUM_UDP_PCB, sizeof(struct udp_pcb), "UDP_PCB") +#endif /* LWIP_UDP */ + +#if LWIP_TCP +LWIP_MEMPOOL(TCP_PCB, MEMP_NUM_TCP_PCB, sizeof(struct tcp_pcb), "TCP_PCB") +LWIP_MEMPOOL(TCP_PCB_LISTEN, MEMP_NUM_TCP_PCB_LISTEN, sizeof(struct tcp_pcb_listen), "TCP_PCB_LISTEN") +LWIP_MEMPOOL(TCP_SEG, MEMP_NUM_TCP_SEG, sizeof(struct tcp_seg), "TCP_SEG") +#endif /* LWIP_TCP */ + +#if LWIP_ALTCP && LWIP_TCP +LWIP_MEMPOOL(ALTCP_PCB, MEMP_NUM_ALTCP_PCB, sizeof(struct altcp_pcb), "ALTCP_PCB") +#endif /* LWIP_ALTCP && LWIP_TCP */ + +#if LWIP_IPV4 && IP_REASSEMBLY +LWIP_MEMPOOL(REASSDATA, MEMP_NUM_REASSDATA, sizeof(struct ip_reassdata), "REASSDATA") +#endif /* LWIP_IPV4 && IP_REASSEMBLY */ +#if (IP_FRAG && !LWIP_NETIF_TX_SINGLE_PBUF) || (LWIP_IPV6 && LWIP_IPV6_FRAG) +LWIP_MEMPOOL(FRAG_PBUF, MEMP_NUM_FRAG_PBUF, sizeof(struct pbuf_custom_ref),"FRAG_PBUF") +#endif /* IP_FRAG && !LWIP_NETIF_TX_SINGLE_PBUF || (LWIP_IPV6 && LWIP_IPV6_FRAG) */ + +#if LWIP_NETCONN || LWIP_SOCKET +LWIP_MEMPOOL(NETBUF, MEMP_NUM_NETBUF, sizeof(struct netbuf), "NETBUF") +LWIP_MEMPOOL(NETCONN, MEMP_NUM_NETCONN, sizeof(struct netconn), "NETCONN") +#endif /* LWIP_NETCONN || LWIP_SOCKET */ + +#if NO_SYS==0 +LWIP_MEMPOOL(TCPIP_MSG_API, MEMP_NUM_TCPIP_MSG_API, sizeof(struct tcpip_msg), "TCPIP_MSG_API") +#if LWIP_MPU_COMPATIBLE +LWIP_MEMPOOL(API_MSG, MEMP_NUM_API_MSG, sizeof(struct api_msg), "API_MSG") +#if LWIP_DNS +LWIP_MEMPOOL(DNS_API_MSG, MEMP_NUM_DNS_API_MSG, sizeof(struct dns_api_msg), "DNS_API_MSG") +#endif +#if LWIP_SOCKET && !LWIP_TCPIP_CORE_LOCKING +LWIP_MEMPOOL(SOCKET_SETGETSOCKOPT_DATA, MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA, sizeof(struct lwip_setgetsockopt_data), "SOCKET_SETGETSOCKOPT_DATA") +#endif +#if LWIP_SOCKET && (LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL) +LWIP_MEMPOOL(SELECT_CB, MEMP_NUM_SELECT_CB, sizeof(struct lwip_select_cb), "SELECT_CB") +#endif /* LWIP_SOCKET && (LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL) */ +#if LWIP_NETIF_API +LWIP_MEMPOOL(NETIFAPI_MSG, MEMP_NUM_NETIFAPI_MSG, sizeof(struct netifapi_msg), "NETIFAPI_MSG") +#endif +#endif /* LWIP_MPU_COMPATIBLE */ +#if !LWIP_TCPIP_CORE_LOCKING_INPUT +LWIP_MEMPOOL(TCPIP_MSG_INPKT,MEMP_NUM_TCPIP_MSG_INPKT, sizeof(struct tcpip_msg), "TCPIP_MSG_INPKT") +#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */ +#endif /* NO_SYS==0 */ + +#if LWIP_IPV4 && LWIP_ARP && ARP_QUEUEING +LWIP_MEMPOOL(ARP_QUEUE, MEMP_NUM_ARP_QUEUE, sizeof(struct etharp_q_entry), "ARP_QUEUE") +#endif /* LWIP_IPV4 && LWIP_ARP && ARP_QUEUEING */ + +#if LWIP_IGMP +LWIP_MEMPOOL(IGMP_GROUP, MEMP_NUM_IGMP_GROUP, sizeof(struct igmp_group), "IGMP_GROUP") +#endif /* LWIP_IGMP */ + +#if LWIP_TIMERS && !LWIP_TIMERS_CUSTOM +LWIP_MEMPOOL(SYS_TIMEOUT, MEMP_NUM_SYS_TIMEOUT, sizeof(struct sys_timeo), "SYS_TIMEOUT") +#endif /* LWIP_TIMERS && !LWIP_TIMERS_CUSTOM */ + +#if LWIP_DNS && LWIP_SOCKET +LWIP_MEMPOOL(NETDB, MEMP_NUM_NETDB, NETDB_ELEM_SIZE, "NETDB") +#endif /* LWIP_DNS && LWIP_SOCKET */ +#if LWIP_DNS && DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC +LWIP_MEMPOOL(LOCALHOSTLIST, MEMP_NUM_LOCALHOSTLIST, LOCALHOSTLIST_ELEM_SIZE, "LOCALHOSTLIST") +#endif /* LWIP_DNS && DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ + +#if LWIP_IPV6 && LWIP_ND6_QUEUEING +LWIP_MEMPOOL(ND6_QUEUE, MEMP_NUM_ND6_QUEUE, sizeof(struct nd6_q_entry), "ND6_QUEUE") +#endif /* LWIP_IPV6 && LWIP_ND6_QUEUEING */ + +#if LWIP_IPV6 && LWIP_IPV6_REASS +LWIP_MEMPOOL(IP6_REASSDATA, MEMP_NUM_REASSDATA, sizeof(struct ip6_reassdata), "IP6_REASSDATA") +#endif /* LWIP_IPV6 && LWIP_IPV6_REASS */ + +#if LWIP_IPV6 && LWIP_IPV6_MLD +LWIP_MEMPOOL(MLD6_GROUP, MEMP_NUM_MLD6_GROUP, sizeof(struct mld_group), "MLD6_GROUP") +#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ + + +/* + * A list of pools of pbuf's used by LWIP. + * + * LWIP_PBUF_MEMPOOL(pool_name, number_elements, pbuf_payload_size, pool_description) + * creates a pool name MEMP_pool_name. description is used in stats.c + * This allocates enough space for the pbuf struct and a payload. + * (Example: pbuf_payload_size=0 allocates only size for the struct) + */ +LWIP_MEMPOOL(PBUF, MEMP_NUM_PBUF, sizeof(struct pbuf), "PBUF_REF/ROM") +LWIP_PBUF_MEMPOOL(PBUF_POOL, PBUF_POOL_SIZE, PBUF_POOL_BUFSIZE, "PBUF_POOL") + + +/* + * Allow for user-defined pools; this must be explicitly set in lwipopts.h + * since the default is to NOT look for lwippools.h + */ +#if MEMP_USE_CUSTOM_POOLS +#include "lwippools.h" +#endif /* MEMP_USE_CUSTOM_POOLS */ + +/* + * REQUIRED CLEANUP: Clear up so we don't get "multiply defined" error later + * (#undef is ignored for something that is not defined) + */ +#undef LWIP_MEMPOOL +#undef LWIP_MALLOC_MEMPOOL +#undef LWIP_MALLOC_MEMPOOL_START +#undef LWIP_MALLOC_MEMPOOL_END +#undef LWIP_PBUF_MEMPOOL diff --git a/middleware/lwip/src/include/lwip/priv/nd6_priv.h b/middleware/lwip/src/include/lwip/priv/nd6_priv.h new file mode 100644 index 0000000..75d5f02 --- /dev/null +++ b/middleware/lwip/src/include/lwip/priv/nd6_priv.h @@ -0,0 +1,143 @@ +/** + * @file + * + * Neighbor discovery and stateless address autoconfiguration for IPv6. + * Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 + * (Address autoconfiguration). + */ + +/* + * Copyright (c) 2010 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#ifndef LWIP_HDR_ND6_PRIV_H +#define LWIP_HDR_ND6_PRIV_H + +#include "lwip/opt.h" + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/pbuf.h" +#include "lwip/ip6_addr.h" +#include "lwip/netif.h" + + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_ND6_QUEUEING +/** struct for queueing outgoing packets for unknown address + * defined here to be accessed by memp.h + */ +struct nd6_q_entry { + struct nd6_q_entry *next; + struct pbuf *p; +}; +#endif /* LWIP_ND6_QUEUEING */ + +/** Struct for tables. */ +struct nd6_neighbor_cache_entry { + ip6_addr_t next_hop_address; + struct netif *netif; + u8_t lladdr[NETIF_MAX_HWADDR_LEN]; + /*u32_t pmtu;*/ +#if LWIP_ND6_QUEUEING + /** Pointer to queue of pending outgoing packets on this entry. */ + struct nd6_q_entry *q; +#else /* LWIP_ND6_QUEUEING */ + /** Pointer to a single pending outgoing packet on this entry. */ + struct pbuf *q; +#endif /* LWIP_ND6_QUEUEING */ + u8_t state; + u8_t isrouter; + union { + u32_t reachable_time; /* in seconds */ + u32_t delay_time; /* ticks (ND6_TMR_INTERVAL) */ + u32_t probes_sent; + u32_t stale_time; /* ticks (ND6_TMR_INTERVAL) */ + } counter; +}; + +struct nd6_destination_cache_entry { + ip6_addr_t destination_addr; + ip6_addr_t next_hop_addr; + u16_t pmtu; + u8_t cached_neighbor_idx; + u32_t age; +}; + +struct nd6_prefix_list_entry { + ip6_addr_t prefix; + struct netif *netif; + u32_t invalidation_timer; /* in seconds */ +}; + +struct nd6_router_list_entry { + struct nd6_neighbor_cache_entry *neighbor_entry; + u32_t invalidation_timer; /* in seconds */ + u8_t flags; +}; + +enum nd6_neighbor_cache_entry_state { + ND6_NO_ENTRY = 0, + ND6_INCOMPLETE, + ND6_REACHABLE, + ND6_STALE, + ND6_DELAY, + ND6_PROBE +}; + +#define ND6_HOPLIM 255 /* maximum hop limit, required in all ND packets */ + +#define ND6_2HRS 7200 /* two hours, expressed in number of seconds */ + +/* Router tables. */ +/* @todo make these static? and entries accessible through API? */ +extern struct nd6_neighbor_cache_entry neighbor_cache[]; +extern struct nd6_destination_cache_entry destination_cache[]; +extern struct nd6_prefix_list_entry prefix_list[]; +extern struct nd6_router_list_entry default_router_list[]; + +/* Default values, can be updated by a RA message. */ +extern u32_t reachable_time; +extern u32_t retrans_timer; + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6 */ + +#endif /* LWIP_HDR_ND6_PRIV_H */ diff --git a/middleware/lwip/src/include/lwip/priv/raw_priv.h b/middleware/lwip/src/include/lwip/priv/raw_priv.h new file mode 100644 index 0000000..d4561d4 --- /dev/null +++ b/middleware/lwip/src/include/lwip/priv/raw_priv.h @@ -0,0 +1,69 @@ +/** + * @file + * raw API internal implementations (do not use in application code) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_RAW_PRIV_H +#define LWIP_HDR_RAW_PRIV_H + +#include "lwip/opt.h" + +#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/raw.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** return codes for raw_input */ +typedef enum raw_input_state +{ + RAW_INPUT_NONE = 0, /* pbuf did not match any pcbs */ + RAW_INPUT_EATEN, /* pbuf handed off and delivered to pcb */ + RAW_INPUT_DELIVERED /* pbuf only delivered to pcb (pbuf can still be referenced) */ +} raw_input_state_t; + +/* The following functions are the lower layer interface to RAW. */ +raw_input_state_t raw_input(struct pbuf *p, struct netif *inp); + +void raw_netif_ip_addr_changed(const ip_addr_t* old_addr, const ip_addr_t* new_addr); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_RAW */ + +#endif /* LWIP_HDR_RAW_PRIV_H */ diff --git a/middleware/lwip/src/include/lwip/priv/sockets_priv.h b/middleware/lwip/src/include/lwip/priv/sockets_priv.h new file mode 100644 index 0000000..c604734 --- /dev/null +++ b/middleware/lwip/src/include/lwip/priv/sockets_priv.h @@ -0,0 +1,175 @@ +/** + * @file + * Sockets API internal implementations (do not use in application code) + */ + +/* + * Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Joel Cunningham + * + */ +#ifndef LWIP_HDR_SOCKETS_PRIV_H +#define LWIP_HDR_SOCKETS_PRIV_H + +#include "lwip/opt.h" + +#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/err.h" +#include "lwip/sockets.h" +#include "lwip/sys.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define NUM_SOCKETS MEMP_NUM_NETCONN + +/** This is overridable for the rare case where more than 255 threads + * select on the same socket... + */ +#ifndef SELWAIT_T +#define SELWAIT_T u8_t +#endif + +union lwip_sock_lastdata { + struct netbuf *netbuf; + struct pbuf *pbuf; +}; + +/** Contains all internal pointers and states used for a socket */ +struct lwip_sock { + /** sockets currently are built on netconns, each socket has one netconn */ + struct netconn *conn; + /** data that was left from the previous read */ + union lwip_sock_lastdata lastdata; +#if LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL + /** number of times data was received, set by event_callback(), + tested by the receive and select functions */ + s16_t rcvevent; + /** number of times data was ACKed (free send buffer), set by event_callback(), + tested by select */ + u16_t sendevent; + /** error happened for this socket, set by event_callback(), tested by select */ + u16_t errevent; + /** counter of how many threads are waiting for this socket using select */ + SELWAIT_T select_waiting; +#endif /* LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL */ +#if LWIP_NETCONN_FULLDUPLEX + /* counter of how many threads are using a struct lwip_sock (not the 'int') */ + u8_t fd_used; + /* status of pending close/delete actions */ + u8_t fd_free_pending; +#define LWIP_SOCK_FD_FREE_TCP 1 +#define LWIP_SOCK_FD_FREE_FREE 2 +#endif +}; + +#ifndef set_errno +#define set_errno(err) do { if (err) { errno = (err); } } while(0) +#endif + +#if !LWIP_TCPIP_CORE_LOCKING +/** Maximum optlen used by setsockopt/getsockopt */ +#define LWIP_SETGETSOCKOPT_MAXOPTLEN LWIP_MAX(16, sizeof(struct ifreq)) + +/** This struct is used to pass data to the set/getsockopt_impl + * functions running in tcpip_thread context (only a void* is allowed) */ +struct lwip_setgetsockopt_data { + /** socket index for which to change options */ + int s; + /** level of the option to process */ + int level; + /** name of the option to process */ + int optname; + /** set: value to set the option to + * get: value of the option is stored here */ +#if LWIP_MPU_COMPATIBLE + u8_t optval[LWIP_SETGETSOCKOPT_MAXOPTLEN]; +#else + union { + void *p; + const void *pc; + } optval; +#endif + /** size of *optval */ + socklen_t optlen; + /** if an error occurs, it is temporarily stored here */ + int err; + /** semaphore to wake up the calling task */ + void* completed_sem; +}; +#endif /* !LWIP_TCPIP_CORE_LOCKING */ + +#ifdef __cplusplus +} +#endif + +struct lwip_sock* lwip_socket_dbg_get_socket(int fd); + +#if LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL + +#if LWIP_NETCONN_SEM_PER_THREAD +#define SELECT_SEM_T sys_sem_t* +#define SELECT_SEM_PTR(sem) (sem) +#else /* LWIP_NETCONN_SEM_PER_THREAD */ +#define SELECT_SEM_T sys_sem_t +#define SELECT_SEM_PTR(sem) (&(sem)) +#endif /* LWIP_NETCONN_SEM_PER_THREAD */ + +/** Description for a task waiting in select */ +struct lwip_select_cb { + /** Pointer to the next waiting task */ + struct lwip_select_cb *next; + /** Pointer to the previous waiting task */ + struct lwip_select_cb *prev; +#if LWIP_SOCKET_SELECT + /** readset passed to select */ + fd_set *readset; + /** writeset passed to select */ + fd_set *writeset; + /** unimplemented: exceptset passed to select */ + fd_set *exceptset; +#endif /* LWIP_SOCKET_SELECT */ +#if LWIP_SOCKET_POLL + /** fds passed to poll; NULL if select */ + struct pollfd *poll_fds; + /** nfds passed to poll; 0 if select */ + nfds_t poll_nfds; +#endif /* LWIP_SOCKET_POLL */ + /** don't signal the same semaphore twice: set to 1 when signalled */ + int sem_signalled; + /** semaphore to wake up a task waiting for select */ + SELECT_SEM_T sem; +}; +#endif /* LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL */ + +#endif /* LWIP_SOCKET */ + +#endif /* LWIP_HDR_SOCKETS_PRIV_H */ diff --git a/middleware/lwip/src/include/lwip/priv/tcp_priv.h b/middleware/lwip/src/include/lwip/priv/tcp_priv.h new file mode 100644 index 0000000..93f5b2e --- /dev/null +++ b/middleware/lwip/src/include/lwip/priv/tcp_priv.h @@ -0,0 +1,524 @@ +/** + * @file + * TCP internal implementations (do not use in application code) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_TCP_PRIV_H +#define LWIP_HDR_TCP_PRIV_H + +#include "lwip/opt.h" + +#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/tcp.h" +#include "lwip/mem.h" +#include "lwip/pbuf.h" +#include "lwip/ip.h" +#include "lwip/icmp.h" +#include "lwip/err.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" +#include "lwip/prot/tcp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Functions for interfacing with TCP: */ + +/* Lower layer interface to TCP: */ +void tcp_init (void); /* Initialize this module. */ +void tcp_tmr (void); /* Must be called every + TCP_TMR_INTERVAL + ms. (Typically 250 ms). */ +/* It is also possible to call these two functions at the right + intervals (instead of calling tcp_tmr()). */ +void tcp_slowtmr (void); +void tcp_fasttmr (void); + +/* Call this from a netif driver (watch out for threading issues!) that has + returned a memory error on transmit and now has free buffers to send more. + This iterates all active pcbs that had an error and tries to call + tcp_output, so use this with care as it might slow down the system. */ +void tcp_txnow (void); + +/* Only used by IP to pass a TCP segment to TCP: */ +void tcp_input (struct pbuf *p, struct netif *inp); +/* Used within the TCP code only: */ +struct tcp_pcb * tcp_alloc (u8_t prio); +void tcp_free (struct tcp_pcb *pcb); +void tcp_abandon (struct tcp_pcb *pcb, int reset); +err_t tcp_send_empty_ack(struct tcp_pcb *pcb); +err_t tcp_rexmit (struct tcp_pcb *pcb); +err_t tcp_rexmit_rto_prepare(struct tcp_pcb *pcb); +void tcp_rexmit_rto_commit(struct tcp_pcb *pcb); +void tcp_rexmit_rto (struct tcp_pcb *pcb); +void tcp_rexmit_fast (struct tcp_pcb *pcb); +u32_t tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb); +err_t tcp_process_refused_data(struct tcp_pcb *pcb); + +/** + * This is the Nagle algorithm: try to combine user data to send as few TCP + * segments as possible. Only send if + * - no previously transmitted data on the connection remains unacknowledged or + * - the TF_NODELAY flag is set (nagle algorithm turned off for this pcb) or + * - the only unsent segment is at least pcb->mss bytes long (or there is more + * than one unsent segment - with lwIP, this can happen although unsent->len < mss) + * - or if we are in fast-retransmit (TF_INFR) + */ +#define tcp_do_output_nagle(tpcb) ((((tpcb)->unacked == NULL) || \ + ((tpcb)->flags & (TF_NODELAY | TF_INFR)) || \ + (((tpcb)->unsent != NULL) && (((tpcb)->unsent->next != NULL) || \ + ((tpcb)->unsent->len >= (tpcb)->mss))) || \ + ((tcp_sndbuf(tpcb) == 0) || (tcp_sndqueuelen(tpcb) >= TCP_SND_QUEUELEN)) \ + ) ? 1 : 0) +#define tcp_output_nagle(tpcb) (tcp_do_output_nagle(tpcb) ? tcp_output(tpcb) : ERR_OK) + + +#define TCP_SEQ_LT(a,b) (((u32_t)((u32_t)(a) - (u32_t)(b)) & 0x80000000u) != 0) +#define TCP_SEQ_LEQ(a,b) (!(TCP_SEQ_LT(b,a))) +#define TCP_SEQ_GT(a,b) TCP_SEQ_LT(b,a) +#define TCP_SEQ_GEQ(a,b) TCP_SEQ_LEQ(b,a) +/* is b<=a<=c? */ +#define TCP_SEQ_BETWEEN(a,b,c) (TCP_SEQ_GEQ(a,b) && TCP_SEQ_LEQ(a,c)) + +#ifndef TCP_TMR_INTERVAL +#define TCP_TMR_INTERVAL 250 /* The TCP timer interval in milliseconds. */ +#endif /* TCP_TMR_INTERVAL */ + +#ifndef TCP_FAST_INTERVAL +#define TCP_FAST_INTERVAL TCP_TMR_INTERVAL /* the fine grained timeout in milliseconds */ +#endif /* TCP_FAST_INTERVAL */ + +#ifndef TCP_SLOW_INTERVAL +#define TCP_SLOW_INTERVAL (2*TCP_TMR_INTERVAL) /* the coarse grained timeout in milliseconds */ +#endif /* TCP_SLOW_INTERVAL */ + +#define TCP_FIN_WAIT_TIMEOUT 20000 /* milliseconds */ +#define TCP_SYN_RCVD_TIMEOUT 20000 /* milliseconds */ + +#define TCP_OOSEQ_TIMEOUT 6U /* x RTO */ + +#ifndef TCP_MSL +#define TCP_MSL 60000UL /* The maximum segment lifetime in milliseconds */ +#endif + +/* Keepalive values, compliant with RFC 1122. Don't change this unless you know what you're doing */ +#ifndef TCP_KEEPIDLE_DEFAULT +#define TCP_KEEPIDLE_DEFAULT 7200000UL /* Default KEEPALIVE timer in milliseconds */ +#endif + +#ifndef TCP_KEEPINTVL_DEFAULT +#define TCP_KEEPINTVL_DEFAULT 75000UL /* Default Time between KEEPALIVE probes in milliseconds */ +#endif + +#ifndef TCP_KEEPCNT_DEFAULT +#define TCP_KEEPCNT_DEFAULT 9U /* Default Counter for KEEPALIVE probes */ +#endif + +#ifndef TCP_USER_TIMEOUT_DEFAULT +#define TCP_USER_TIMEOUT_DEFAULT 0U /* Default of the socket TCP_USER_TIMEOUT option */ +#endif + +#define TCP_MAXIDLE TCP_KEEPCNT_DEFAULT * TCP_KEEPINTVL_DEFAULT /* Maximum KEEPALIVE probe time */ + +#define TCP_TCPLEN(seg) ((seg)->len + (((TCPH_FLAGS((seg)->tcphdr) & (TCP_FIN | TCP_SYN)) != 0) ? 1U : 0U)) + +/** Flags used on input processing, not on pcb->flags +*/ +#define TF_RESET (u8_t)0x08U /* Connection was reset. */ +#define TF_CLOSED (u8_t)0x10U /* Connection was successfully closed. */ +#define TF_GOT_FIN (u8_t)0x20U /* Connection was closed by the remote end. */ + + +#if LWIP_EVENT_API + +#define TCP_EVENT_ACCEPT(lpcb,pcb,arg,err,ret) ret = lwip_tcp_event(arg, (pcb),\ + LWIP_EVENT_ACCEPT, NULL, 0, err) +#define TCP_EVENT_SENT(pcb,space,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ + LWIP_EVENT_SENT, NULL, space, ERR_OK) +#define TCP_EVENT_RECV(pcb,p,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ + LWIP_EVENT_RECV, (p), 0, (err)) +#define TCP_EVENT_CLOSED(pcb,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ + LWIP_EVENT_RECV, NULL, 0, ERR_OK) +#define TCP_EVENT_CONNECTED(pcb,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ + LWIP_EVENT_CONNECTED, NULL, 0, (err)) +#define TCP_EVENT_POLL(pcb,ret) do { if ((pcb)->state != SYN_RCVD) { \ + ret = lwip_tcp_event((pcb)->callback_arg, (pcb), LWIP_EVENT_POLL, NULL, 0, ERR_OK); \ + } else { \ + ret = ERR_ARG; } } while(0) +/* For event API, last state SYN_RCVD must be excluded here: the application + has not seen this pcb, yet! */ +#define TCP_EVENT_ERR(last_state,errf,arg,err) do { if (last_state != SYN_RCVD) { \ + lwip_tcp_event((arg), NULL, LWIP_EVENT_ERR, NULL, 0, (err)); } } while(0) + +#else /* LWIP_EVENT_API */ + +#define TCP_EVENT_ACCEPT(lpcb,pcb,arg,err,ret) \ + do { \ + if((lpcb)->accept != NULL) \ + (ret) = (lpcb)->accept((arg),(pcb),(err)); \ + else (ret) = ERR_ARG; \ + } while (0) + +#define TCP_EVENT_SENT(pcb,space,ret) \ + do { \ + if((pcb)->sent != NULL) \ + (ret) = (pcb)->sent((pcb)->callback_arg,(pcb),(space)); \ + else (ret) = ERR_OK; \ + } while (0) + +#define TCP_EVENT_RECV(pcb,p,err,ret) \ + do { \ + if((pcb)->recv != NULL) { \ + (ret) = (pcb)->recv((pcb)->callback_arg,(pcb),(p),(err));\ + } else { \ + (ret) = tcp_recv_null(NULL, (pcb), (p), (err)); \ + } \ + } while (0) + +#define TCP_EVENT_CLOSED(pcb,ret) \ + do { \ + if(((pcb)->recv != NULL)) { \ + (ret) = (pcb)->recv((pcb)->callback_arg,(pcb),NULL,ERR_OK);\ + } else { \ + (ret) = ERR_OK; \ + } \ + } while (0) + +#define TCP_EVENT_CONNECTED(pcb,err,ret) \ + do { \ + if((pcb)->connected != NULL) \ + (ret) = (pcb)->connected((pcb)->callback_arg,(pcb),(err)); \ + else (ret) = ERR_OK; \ + } while (0) + +#define TCP_EVENT_POLL(pcb,ret) \ + do { \ + if((pcb)->poll != NULL) \ + (ret) = (pcb)->poll((pcb)->callback_arg,(pcb)); \ + else (ret) = ERR_OK; \ + } while (0) + +#define TCP_EVENT_ERR(last_state,errf,arg,err) \ + do { \ + LWIP_UNUSED_ARG(last_state); \ + if((errf) != NULL) \ + (errf)((arg),(err)); \ + } while (0) + +#endif /* LWIP_EVENT_API */ + +/** Enabled extra-check for TCP_OVERSIZE if LWIP_DEBUG is enabled */ +#if TCP_OVERSIZE && defined(LWIP_DEBUG) +#define TCP_OVERSIZE_DBGCHECK 1 +#else +#define TCP_OVERSIZE_DBGCHECK 0 +#endif + +/** Don't generate checksum on copy if CHECKSUM_GEN_TCP is disabled */ +#define TCP_CHECKSUM_ON_COPY (LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_TCP) + +/* This structure represents a TCP segment on the unsent, unacked and ooseq queues */ +struct tcp_seg { + struct tcp_seg *next; /* used when putting segments on a queue */ + struct pbuf *p; /* buffer containing data + TCP header */ + u16_t len; /* the TCP length of this segment */ +#if TCP_OVERSIZE_DBGCHECK + u16_t oversize_left; /* Extra bytes available at the end of the last + pbuf in unsent (used for asserting vs. + tcp_pcb.unsent_oversize only) */ +#endif /* TCP_OVERSIZE_DBGCHECK */ +#if TCP_CHECKSUM_ON_COPY + u16_t chksum; + u8_t chksum_swapped; +#endif /* TCP_CHECKSUM_ON_COPY */ + u8_t flags; +#define TF_SEG_OPTS_MSS (u8_t)0x01U /* Include MSS option (only used in SYN segments) */ +#define TF_SEG_OPTS_TS (u8_t)0x02U /* Include timestamp option. */ +#define TF_SEG_DATA_CHECKSUMMED (u8_t)0x04U /* ALL data (not the header) is + checksummed into 'chksum' */ +#define TF_SEG_OPTS_WND_SCALE (u8_t)0x08U /* Include WND SCALE option (only used in SYN segments) */ +#define TF_SEG_OPTS_SACK_PERM (u8_t)0x10U /* Include SACK Permitted option (only used in SYN segments) */ + struct tcp_hdr *tcphdr; /* the TCP header */ +}; + +#define LWIP_TCP_OPT_EOL 0 +#define LWIP_TCP_OPT_NOP 1 +#define LWIP_TCP_OPT_MSS 2 +#define LWIP_TCP_OPT_WS 3 +#define LWIP_TCP_OPT_SACK_PERM 4 +#define LWIP_TCP_OPT_TS 8 + +#define LWIP_TCP_OPT_LEN_MSS 4 +#if LWIP_TCP_TIMESTAMPS +#define LWIP_TCP_OPT_LEN_TS 10 +#define LWIP_TCP_OPT_LEN_TS_OUT 12 /* aligned for output (includes NOP padding) */ +#else +#define LWIP_TCP_OPT_LEN_TS_OUT 0 +#endif +#if LWIP_WND_SCALE +#define LWIP_TCP_OPT_LEN_WS 3 +#define LWIP_TCP_OPT_LEN_WS_OUT 4 /* aligned for output (includes NOP padding) */ +#else +#define LWIP_TCP_OPT_LEN_WS_OUT 0 +#endif + +#if LWIP_TCP_SACK_OUT +#define LWIP_TCP_OPT_LEN_SACK_PERM 2 +#define LWIP_TCP_OPT_LEN_SACK_PERM_OUT 4 /* aligned for output (includes NOP padding) */ +#else +#define LWIP_TCP_OPT_LEN_SACK_PERM_OUT 0 +#endif + +#define LWIP_TCP_OPT_LENGTH(flags) \ + ((flags) & TF_SEG_OPTS_MSS ? LWIP_TCP_OPT_LEN_MSS : 0) + \ + ((flags) & TF_SEG_OPTS_TS ? LWIP_TCP_OPT_LEN_TS_OUT : 0) + \ + ((flags) & TF_SEG_OPTS_WND_SCALE ? LWIP_TCP_OPT_LEN_WS_OUT : 0) + \ + ((flags) & TF_SEG_OPTS_SACK_PERM ? LWIP_TCP_OPT_LEN_SACK_PERM_OUT : 0) + +/** This returns a TCP header option for MSS in an u32_t */ +#define TCP_BUILD_MSS_OPTION(mss) lwip_htonl(0x02040000 | ((mss) & 0xFFFF)) + +#if LWIP_WND_SCALE +#define TCPWNDSIZE_F U32_F +#define TCPWND_MAX 0xFFFFFFFFU +#define TCPWND_CHECK16(x) LWIP_ASSERT("window size > 0xFFFF", (x) <= 0xFFFF) +#define TCPWND_MIN16(x) ((u16_t)LWIP_MIN((x), 0xFFFF)) +#else /* LWIP_WND_SCALE */ +#define TCPWNDSIZE_F U16_F +#define TCPWND_MAX 0xFFFFU +#define TCPWND_CHECK16(x) +#define TCPWND_MIN16(x) x +#endif /* LWIP_WND_SCALE */ + +/* Global variables: */ +extern struct tcp_pcb *tcp_input_pcb; +extern u32_t tcp_ticks; +extern u8_t tcp_active_pcbs_changed; + +/* The TCP PCB lists. */ +union tcp_listen_pcbs_t { /* List of all TCP PCBs in LISTEN state. */ + struct tcp_pcb_listen *listen_pcbs; + struct tcp_pcb *pcbs; +}; +extern struct tcp_pcb *tcp_bound_pcbs; +extern union tcp_listen_pcbs_t tcp_listen_pcbs; +extern struct tcp_pcb *tcp_active_pcbs; /* List of all TCP PCBs that are in a + state in which they accept or send + data. */ +extern struct tcp_pcb *tcp_tw_pcbs; /* List of all TCP PCBs in TIME-WAIT. */ + +#define NUM_TCP_PCB_LISTS_NO_TIME_WAIT 3 +#define NUM_TCP_PCB_LISTS 4 +extern struct tcp_pcb ** const tcp_pcb_lists[NUM_TCP_PCB_LISTS]; + +/* Axioms about the above lists: + 1) Every TCP PCB that is not CLOSED is in one of the lists. + 2) A PCB is only in one of the lists. + 3) All PCBs in the tcp_listen_pcbs list is in LISTEN state. + 4) All PCBs in the tcp_tw_pcbs list is in TIME-WAIT state. +*/ +/* Define two macros, TCP_REG and TCP_RMV that registers a TCP PCB + with a PCB list or removes a PCB from a list, respectively. */ +#ifndef TCP_DEBUG_PCB_LISTS +#define TCP_DEBUG_PCB_LISTS 0 +#endif +#if TCP_DEBUG_PCB_LISTS +#define TCP_REG(pcbs, npcb) do {\ + struct tcp_pcb *tcp_tmp_pcb; \ + LWIP_DEBUGF(TCP_DEBUG, ("TCP_REG %p local port %"U16_F"\n", (void *)(npcb), (npcb)->local_port)); \ + for (tcp_tmp_pcb = *(pcbs); \ + tcp_tmp_pcb != NULL; \ + tcp_tmp_pcb = tcp_tmp_pcb->next) { \ + LWIP_ASSERT("TCP_REG: already registered", tcp_tmp_pcb != (npcb)); \ + } \ + LWIP_ASSERT("TCP_REG: pcb->state != CLOSED", ((pcbs) == &tcp_bound_pcbs) || ((npcb)->state != CLOSED)); \ + (npcb)->next = *(pcbs); \ + LWIP_ASSERT("TCP_REG: npcb->next != npcb", (npcb)->next != (npcb)); \ + *(pcbs) = (npcb); \ + LWIP_ASSERT("TCP_REG: tcp_pcbs sane", tcp_pcbs_sane()); \ + tcp_timer_needed(); \ + } while(0) +#define TCP_RMV(pcbs, npcb) do { \ + struct tcp_pcb *tcp_tmp_pcb; \ + LWIP_ASSERT("TCP_RMV: pcbs != NULL", *(pcbs) != NULL); \ + LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removing %p from %p\n", (void *)(npcb), (void *)(*(pcbs)))); \ + if(*(pcbs) == (npcb)) { \ + *(pcbs) = (*pcbs)->next; \ + } else for (tcp_tmp_pcb = *(pcbs); tcp_tmp_pcb != NULL; tcp_tmp_pcb = tcp_tmp_pcb->next) { \ + if(tcp_tmp_pcb->next == (npcb)) { \ + tcp_tmp_pcb->next = (npcb)->next; \ + break; \ + } \ + } \ + (npcb)->next = NULL; \ + LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \ + LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removed %p from %p\n", (void *)(npcb), (void *)(*(pcbs)))); \ + } while(0) + +#else /* LWIP_DEBUG */ + +#define TCP_REG(pcbs, npcb) \ + do { \ + (npcb)->next = *pcbs; \ + *(pcbs) = (npcb); \ + tcp_timer_needed(); \ + } while (0) + +#define TCP_RMV(pcbs, npcb) \ + do { \ + if(*(pcbs) == (npcb)) { \ + (*(pcbs)) = (*pcbs)->next; \ + } \ + else { \ + struct tcp_pcb *tcp_tmp_pcb; \ + for (tcp_tmp_pcb = *pcbs; \ + tcp_tmp_pcb != NULL; \ + tcp_tmp_pcb = tcp_tmp_pcb->next) { \ + if(tcp_tmp_pcb->next == (npcb)) { \ + tcp_tmp_pcb->next = (npcb)->next; \ + break; \ + } \ + } \ + } \ + (npcb)->next = NULL; \ + } while(0) + +#endif /* LWIP_DEBUG */ + +#define TCP_REG_ACTIVE(npcb) \ + do { \ + TCP_REG(&tcp_active_pcbs, npcb); \ + tcp_active_pcbs_changed = 1; \ + } while (0) + +#define TCP_RMV_ACTIVE(npcb) \ + do { \ + TCP_RMV(&tcp_active_pcbs, npcb); \ + tcp_active_pcbs_changed = 1; \ + } while (0) + +#define TCP_PCB_REMOVE_ACTIVE(pcb) \ + do { \ + tcp_pcb_remove(&tcp_active_pcbs, pcb); \ + tcp_active_pcbs_changed = 1; \ + } while (0) + + +/* Internal functions: */ +struct tcp_pcb *tcp_pcb_copy(struct tcp_pcb *pcb); +void tcp_pcb_purge(struct tcp_pcb *pcb); +void tcp_pcb_remove(struct tcp_pcb **pcblist, struct tcp_pcb *pcb); + +void tcp_segs_free(struct tcp_seg *seg); +void tcp_seg_free(struct tcp_seg *seg); +struct tcp_seg *tcp_seg_copy(struct tcp_seg *seg); + +#define tcp_ack(pcb) \ + do { \ + if((pcb)->flags & TF_ACK_DELAY) { \ + tcp_clear_flags(pcb, TF_ACK_DELAY); \ + tcp_ack_now(pcb); \ + } \ + else { \ + tcp_set_flags(pcb, TF_ACK_DELAY); \ + } \ + } while (0) + +#define tcp_ack_now(pcb) \ + tcp_set_flags(pcb, TF_ACK_NOW) + +err_t tcp_send_fin(struct tcp_pcb *pcb); +err_t tcp_enqueue_flags(struct tcp_pcb *pcb, u8_t flags); + +void tcp_rexmit_seg(struct tcp_pcb *pcb, struct tcp_seg *seg); + +void tcp_rst(const struct tcp_pcb* pcb, u32_t seqno, u32_t ackno, + const ip_addr_t *local_ip, const ip_addr_t *remote_ip, + u16_t local_port, u16_t remote_port); + +u32_t tcp_next_iss(struct tcp_pcb *pcb); + +err_t tcp_keepalive(struct tcp_pcb *pcb); +err_t tcp_split_unsent_seg(struct tcp_pcb *pcb, u16_t split); +err_t tcp_zero_window_probe(struct tcp_pcb *pcb); +void tcp_trigger_input_pcb_close(void); + +#if TCP_CALCULATE_EFF_SEND_MSS +u16_t tcp_eff_send_mss_netif(u16_t sendmss, struct netif *outif, + const ip_addr_t *dest); +#define tcp_eff_send_mss(sendmss, src, dest) \ + tcp_eff_send_mss_netif(sendmss, ip_route(src, dest), dest) +#endif /* TCP_CALCULATE_EFF_SEND_MSS */ + +#if LWIP_CALLBACK_API +err_t tcp_recv_null(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err); +#endif /* LWIP_CALLBACK_API */ + +#if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG +void tcp_debug_print(struct tcp_hdr *tcphdr); +void tcp_debug_print_flags(u8_t flags); +void tcp_debug_print_state(enum tcp_state s); +void tcp_debug_print_pcbs(void); +s16_t tcp_pcbs_sane(void); +#else +# define tcp_debug_print(tcphdr) +# define tcp_debug_print_flags(flags) +# define tcp_debug_print_state(s) +# define tcp_debug_print_pcbs() +# define tcp_pcbs_sane() 1 +#endif /* TCP_DEBUG */ + +/** External function (implemented in timers.c), called when TCP detects + * that a timer is needed (i.e. active- or time-wait-pcb found). */ +void tcp_timer_needed(void); + +void tcp_netif_ip_addr_changed(const ip_addr_t* old_addr, const ip_addr_t* new_addr); + +#if TCP_QUEUE_OOSEQ +void tcp_free_ooseq(struct tcp_pcb *pcb); +#endif + +#if LWIP_TCP_PCB_NUM_EXT_ARGS +err_t tcp_ext_arg_invoke_callbacks_passive_open(struct tcp_pcb_listen *lpcb, struct tcp_pcb *cpcb); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_TCP */ + +#endif /* LWIP_HDR_TCP_PRIV_H */ diff --git a/middleware/lwip/src/include/lwip/priv/tcpip_priv.h b/middleware/lwip/src/include/lwip/priv/tcpip_priv.h new file mode 100644 index 0000000..bfa88ff --- /dev/null +++ b/middleware/lwip/src/include/lwip/priv/tcpip_priv.h @@ -0,0 +1,176 @@ +/** + * @file + * TCPIP API internal implementations (do not use in application code) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_TCPIP_PRIV_H +#define LWIP_HDR_TCPIP_PRIV_H + +#include "lwip/opt.h" + +#if !NO_SYS /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/tcpip.h" +#include "lwip/sys.h" +#include "lwip/timeouts.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct pbuf; +struct netif; + +#if LWIP_MPU_COMPATIBLE +#define API_VAR_REF(name) (*(name)) +#define API_VAR_DECLARE(type, name) type * name +#define API_VAR_ALLOC_EXT(type, pool, name, errorblock) do { \ + name = (type *)memp_malloc(pool); \ + if (name == NULL) { \ + errorblock; \ + } \ + } while(0) +#define API_VAR_ALLOC(type, pool, name, errorval) API_VAR_ALLOC_EXT(type, pool, name, return errorval) +#define API_VAR_ALLOC_POOL(type, pool, name, errorval) do { \ + name = (type *)LWIP_MEMPOOL_ALLOC(pool); \ + if (name == NULL) { \ + return errorval; \ + } \ + } while(0) +#define API_VAR_FREE(pool, name) memp_free(pool, name) +#define API_VAR_FREE_POOL(pool, name) LWIP_MEMPOOL_FREE(pool, name) +#define API_EXPR_REF(expr) (&(expr)) +#if LWIP_NETCONN_SEM_PER_THREAD +#define API_EXPR_REF_SEM(expr) (expr) +#else +#define API_EXPR_REF_SEM(expr) API_EXPR_REF(expr) +#endif +#define API_EXPR_DEREF(expr) expr +#define API_MSG_M_DEF(m) m +#define API_MSG_M_DEF_C(t, m) t m +#else /* LWIP_MPU_COMPATIBLE */ +#define API_VAR_REF(name) name +#define API_VAR_DECLARE(type, name) type name +#define API_VAR_ALLOC_EXT(type, pool, name, errorblock) +#define API_VAR_ALLOC(type, pool, name, errorval) +#define API_VAR_ALLOC_POOL(type, pool, name, errorval) +#define API_VAR_FREE(pool, name) +#define API_VAR_FREE_POOL(pool, name) +#define API_EXPR_REF(expr) expr +#define API_EXPR_REF_SEM(expr) API_EXPR_REF(expr) +#define API_EXPR_DEREF(expr) (*(expr)) +#define API_MSG_M_DEF(m) *m +#define API_MSG_M_DEF_C(t, m) const t * m +#endif /* LWIP_MPU_COMPATIBLE */ + +err_t tcpip_send_msg_wait_sem(tcpip_callback_fn fn, void *apimsg, sys_sem_t* sem); + +struct tcpip_api_call_data +{ +#if !LWIP_TCPIP_CORE_LOCKING + err_t err; +#if !LWIP_NETCONN_SEM_PER_THREAD + sys_sem_t sem; +#endif /* LWIP_NETCONN_SEM_PER_THREAD */ +#else /* !LWIP_TCPIP_CORE_LOCKING */ + u8_t dummy; /* avoid empty struct :-( */ +#endif /* !LWIP_TCPIP_CORE_LOCKING */ +}; +typedef err_t (*tcpip_api_call_fn)(struct tcpip_api_call_data* call); +err_t tcpip_api_call(tcpip_api_call_fn fn, struct tcpip_api_call_data *call); + +enum tcpip_msg_type { +#if !LWIP_TCPIP_CORE_LOCKING + TCPIP_MSG_API, + TCPIP_MSG_API_CALL, +#endif /* !LWIP_TCPIP_CORE_LOCKING */ +#if !LWIP_TCPIP_CORE_LOCKING_INPUT + TCPIP_MSG_INPKT, +#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */ +#if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS + TCPIP_MSG_TIMEOUT, + TCPIP_MSG_UNTIMEOUT, +#endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */ + TCPIP_MSG_CALLBACK, + TCPIP_MSG_CALLBACK_STATIC, + TCPIP_MSG_CALLBACK_STATIC_WAIT +}; + +struct tcpip_msg { + enum tcpip_msg_type type; + union { +#if !LWIP_TCPIP_CORE_LOCKING + struct { + tcpip_callback_fn function; + void* msg; + } api_msg; + struct { + tcpip_api_call_fn function; + struct tcpip_api_call_data *arg; + sys_sem_t *sem; + } api_call; + struct { + tcpip_callback_fn function; + void *ctx; + sys_sem_t *sem; + } cb_wait; +#endif /* LWIP_TCPIP_CORE_LOCKING */ +#if !LWIP_TCPIP_CORE_LOCKING_INPUT + struct { + struct pbuf *p; + struct netif *netif; + netif_input_fn input_fn; + } inp; +#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */ + struct { + tcpip_callback_fn function; + void *ctx; + } cb; +#if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS + struct { + u32_t msecs; + sys_timeout_handler h; + void *arg; + } tmo; +#endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */ + } msg; +}; + +#ifdef __cplusplus +} +#endif + +#endif /* !NO_SYS */ + +#endif /* LWIP_HDR_TCPIP_PRIV_H */ diff --git a/middleware/lwip/src/include/lwip/prot/acd.h b/middleware/lwip/src/include/lwip/prot/acd.h new file mode 100644 index 0000000..860cae5 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/acd.h @@ -0,0 +1,91 @@ +/** + * @file + * ACD protocol definitions + */ + +/* + * + * Copyright (c) 2007 Dominik Spies + * Copyright (c) 2018 Jasper Verschueren + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Jasper Verschueren + * Author: Dominik Spies + */ + +#ifndef LWIP_HDR_PROT_ACD_H +#define LWIP_HDR_PROT_ACD_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* RFC 5227 and RFC 3927 Constants */ +#define PROBE_WAIT 1 /* second (initial random delay) */ +#define PROBE_MIN 1 /* second (minimum delay till repeated probe) */ +#define PROBE_MAX 2 /* seconds (maximum delay till repeated probe) */ +#define PROBE_NUM 3 /* (number of probe packets) */ +#define ANNOUNCE_NUM 2 /* (number of announcement packets) */ +#define ANNOUNCE_INTERVAL 2 /* seconds (time between announcement packets) */ +#define ANNOUNCE_WAIT 2 /* seconds (delay before announcing) */ +#define MAX_CONFLICTS 10 /* (max conflicts before rate limiting) */ +#define RATE_LIMIT_INTERVAL 60 /* seconds (delay between successive attempts) */ +#define DEFEND_INTERVAL 10 /* seconds (minimum interval between defensive ARPs) */ + +/* ACD states */ +typedef enum { + /* ACD is module is off */ + ACD_STATE_OFF, + /* Waiting before probing can be started */ + ACD_STATE_PROBE_WAIT, + /* Probing the ipaddr */ + ACD_STATE_PROBING, + /* Waiting before announcing the probed ipaddr */ + ACD_STATE_ANNOUNCE_WAIT, + /* Announcing the new ipaddr */ + ACD_STATE_ANNOUNCING, + /* Performing ongoing conflict detection with one defend within defend inferval */ + ACD_STATE_ONGOING, + /* Performing ongoing conflict detection but immediately back off and Release + * the address when a conflict occurs. This state is used for LL addresses + * that stay active even if the netif has a routable address selected. + * In such a case, we cannot defend our address */ + ACD_STATE_PASSIVE_ONGOING, + /* To many conflicts occurred, we need to wait before restarting the selection + * process */ + ACD_STATE_RATE_LIMIT +} acd_state_enum_t; + +typedef enum { + ACD_IP_OK, /* IP address is good, no conflicts found in checking state */ + ACD_RESTART_CLIENT, /* Conflict found -> the client should try again */ + ACD_DECLINE /* Decline the received IP address (rate limiting)*/ +} acd_callback_enum_t; + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_ACD_H */ diff --git a/middleware/lwip/src/include/lwip/prot/autoip.h b/middleware/lwip/src/include/lwip/prot/autoip.h new file mode 100644 index 0000000..adbb166 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/autoip.h @@ -0,0 +1,65 @@ +/** + * @file + * AutoIP protocol definitions + */ + +/* + * + * Copyright (c) 2007 Dominik Spies + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Dominik Spies + * + * This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform + * with RFC 3927. + * + */ + +#ifndef LWIP_HDR_PROT_AUTOIP_H +#define LWIP_HDR_PROT_AUTOIP_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* 169.254.0.0 */ +#define AUTOIP_NET 0xA9FE0000 +/* 169.254.1.0 */ +#define AUTOIP_RANGE_START (AUTOIP_NET | 0x0100) +/* 169.254.254.255 */ +#define AUTOIP_RANGE_END (AUTOIP_NET | 0xFEFF) + +/* AutoIP client states */ +typedef enum { + AUTOIP_STATE_OFF, + AUTOIP_STATE_CHECKING, + AUTOIP_STATE_BOUND +} autoip_state_enum_t; + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_AUTOIP_H */ diff --git a/middleware/lwip/src/include/lwip/prot/dhcp.h b/middleware/lwip/src/include/lwip/prot/dhcp.h new file mode 100644 index 0000000..ab18dca --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/dhcp.h @@ -0,0 +1,178 @@ +/** + * @file + * DHCP protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Leon Woestenberg + * Copyright (c) 2001-2004 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Leon Woestenberg + * + */ +#ifndef LWIP_HDR_PROT_DHCP_H +#define LWIP_HDR_PROT_DHCP_H + +#include "lwip/opt.h" +#include "lwip/arch.h" +#include "lwip/prot/ip4.h" + +#ifdef __cplusplus +extern "C" { +#endif + + /* DHCP message item offsets and length */ +#define DHCP_CHADDR_LEN 16U +#define DHCP_SNAME_OFS 44U +#define DHCP_SNAME_LEN 64U +#define DHCP_FILE_OFS 108U +#define DHCP_FILE_LEN 128U +#define DHCP_MSG_LEN 236U +#define DHCP_OPTIONS_OFS (DHCP_MSG_LEN + 4U) /* 4 byte: cookie */ + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +/** minimum set of fields of any DHCP message */ +struct dhcp_msg +{ + PACK_STRUCT_FLD_8(u8_t op); + PACK_STRUCT_FLD_8(u8_t htype); + PACK_STRUCT_FLD_8(u8_t hlen); + PACK_STRUCT_FLD_8(u8_t hops); + PACK_STRUCT_FIELD(u32_t xid); + PACK_STRUCT_FIELD(u16_t secs); + PACK_STRUCT_FIELD(u16_t flags); + PACK_STRUCT_FLD_S(ip4_addr_p_t ciaddr); + PACK_STRUCT_FLD_S(ip4_addr_p_t yiaddr); + PACK_STRUCT_FLD_S(ip4_addr_p_t siaddr); + PACK_STRUCT_FLD_S(ip4_addr_p_t giaddr); + PACK_STRUCT_FLD_8(u8_t chaddr[DHCP_CHADDR_LEN]); + PACK_STRUCT_FLD_8(u8_t sname[DHCP_SNAME_LEN]); + PACK_STRUCT_FLD_8(u8_t file[DHCP_FILE_LEN]); + PACK_STRUCT_FIELD(u32_t cookie); +#define DHCP_MIN_OPTIONS_LEN 68U +/** make sure user does not configure this too small */ +#if ((defined(DHCP_OPTIONS_LEN)) && (DHCP_OPTIONS_LEN < DHCP_MIN_OPTIONS_LEN)) +# undef DHCP_OPTIONS_LEN +#endif +/** allow this to be configured in lwipopts.h, but not too small */ +#if (!defined(DHCP_OPTIONS_LEN)) +/** set this to be sufficient for your options in outgoing DHCP msgs */ +# define DHCP_OPTIONS_LEN DHCP_MIN_OPTIONS_LEN +#endif + PACK_STRUCT_FLD_8(u8_t options[DHCP_OPTIONS_LEN]); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + + +/* DHCP client states */ +typedef enum { + DHCP_STATE_OFF = 0, + DHCP_STATE_REQUESTING = 1, + DHCP_STATE_INIT = 2, + DHCP_STATE_REBOOTING = 3, + DHCP_STATE_REBINDING = 4, + DHCP_STATE_RENEWING = 5, + DHCP_STATE_SELECTING = 6, + DHCP_STATE_INFORMING = 7, + DHCP_STATE_CHECKING = 8, + DHCP_STATE_PERMANENT = 9, /* not yet implemented */ + DHCP_STATE_BOUND = 10, + DHCP_STATE_RELEASING = 11, /* not yet implemented */ + DHCP_STATE_BACKING_OFF = 12 +} dhcp_state_enum_t; + +/* DHCP op codes */ +#define DHCP_BOOTREQUEST 1 +#define DHCP_BOOTREPLY 2 + +/* DHCP message types */ +#define DHCP_DISCOVER 1 +#define DHCP_OFFER 2 +#define DHCP_REQUEST 3 +#define DHCP_DECLINE 4 +#define DHCP_ACK 5 +#define DHCP_NAK 6 +#define DHCP_RELEASE 7 +#define DHCP_INFORM 8 + +#define DHCP_MAGIC_COOKIE 0x63825363UL + +/* This is a list of options for BOOTP and DHCP, see RFC 2132 for descriptions */ + +/* BootP options */ +#define DHCP_OPTION_PAD 0 +#define DHCP_OPTION_SUBNET_MASK 1 /* RFC 2132 3.3 */ +#define DHCP_OPTION_ROUTER 3 +#define DHCP_OPTION_DNS_SERVER 6 +#define DHCP_OPTION_HOSTNAME 12 +#define DHCP_OPTION_IP_TTL 23 +#define DHCP_OPTION_MTU 26 +#define DHCP_OPTION_BROADCAST 28 +#define DHCP_OPTION_TCP_TTL 37 +#define DHCP_OPTION_NTP 42 +#define DHCP_OPTION_END 255 + +/* DHCP options */ +#define DHCP_OPTION_REQUESTED_IP 50 /* RFC 2132 9.1, requested IP address */ +#define DHCP_OPTION_LEASE_TIME 51 /* RFC 2132 9.2, time in seconds, in 4 bytes */ +#define DHCP_OPTION_OVERLOAD 52 /* RFC2132 9.3, use file and/or sname field for options */ + +#define DHCP_OPTION_MESSAGE_TYPE 53 /* RFC 2132 9.6, important for DHCP */ +#define DHCP_OPTION_MESSAGE_TYPE_LEN 1 + +#define DHCP_OPTION_SERVER_ID 54 /* RFC 2132 9.7, server IP address */ +#define DHCP_OPTION_PARAMETER_REQUEST_LIST 55 /* RFC 2132 9.8, requested option types */ + +#define DHCP_OPTION_MAX_MSG_SIZE 57 /* RFC 2132 9.10, message size accepted >= 576 */ +#define DHCP_OPTION_MAX_MSG_SIZE_LEN 2 + +#define DHCP_OPTION_T1 58 /* T1 renewal time */ +#define DHCP_OPTION_T2 59 /* T2 rebinding time */ +#define DHCP_OPTION_US 60 +#define DHCP_OPTION_CLIENT_ID 61 +#define DHCP_OPTION_TFTP_SERVERNAME 66 +#define DHCP_OPTION_BOOTFILE 67 + +/* possible combinations of overloading the file and sname fields with options */ +#define DHCP_OVERLOAD_NONE 0 +#define DHCP_OVERLOAD_FILE 1 +#define DHCP_OVERLOAD_SNAME 2 +#define DHCP_OVERLOAD_SNAME_FILE 3 + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_DHCP_H */ diff --git a/middleware/lwip/src/include/lwip/prot/dhcp6.h b/middleware/lwip/src/include/lwip/prot/dhcp6.h new file mode 100644 index 0000000..0754c91 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/dhcp6.h @@ -0,0 +1,138 @@ +/** + * @file + * DHCPv6 protocol definitions + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_PROT_DHCP6_H +#define LWIP_HDR_PROT_DHCP6_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define DHCP6_CLIENT_PORT 546 +#define DHCP6_SERVER_PORT 547 + + + /* DHCPv6 message item offsets and length */ +#define DHCP6_TRANSACTION_ID_LEN 3 + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +/** minimum set of fields of any DHCPv6 message */ +struct dhcp6_msg +{ + PACK_STRUCT_FLD_8(u8_t msgtype); + PACK_STRUCT_FLD_8(u8_t transaction_id[DHCP6_TRANSACTION_ID_LEN]); + /* options follow */ +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + + +/* DHCP6 client states */ +typedef enum { + DHCP6_STATE_OFF = 0, + DHCP6_STATE_STATELESS_IDLE = 1, + DHCP6_STATE_REQUESTING_CONFIG = 2 +} dhcp6_state_enum_t; + +/* DHCPv6 message types */ +#define DHCP6_SOLICIT 1 +#define DHCP6_ADVERTISE 2 +#define DHCP6_REQUEST 3 +#define DHCP6_CONFIRM 4 +#define DHCP6_RENEW 5 +#define DHCP6_REBIND 6 +#define DHCP6_REPLY 7 +#define DHCP6_RELEASE 8 +#define DHCP6_DECLINE 9 +#define DHCP6_RECONFIGURE 10 +#define DHCP6_INFOREQUEST 11 +#define DHCP6_RELAYFORW 12 +#define DHCP6_RELAYREPL 13 +/* More message types see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */ + +/** DHCPv6 status codes */ +#define DHCP6_STATUS_SUCCESS 0 /* Success. */ +#define DHCP6_STATUS_UNSPECFAIL 1 /* Failure, reason unspecified; this status code is sent by either a client or a server to indicate a failure not explicitly specified in this document. */ +#define DHCP6_STATUS_NOADDRSAVAIL 2 /* Server has no addresses available to assign to the IA(s). */ +#define DHCP6_STATUS_NOBINDING 3 /* Client record (binding) unavailable. */ +#define DHCP6_STATUS_NOTONLINK 4 /* The prefix for the address is not appropriate for the link to which the client is attached. */ +#define DHCP6_STATUS_USEMULTICAST 5 /* Sent by a server to a client to force the client to send messages to the server using the All_DHCP_Relay_Agents_and_Servers address. */ +/* More status codes see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */ + +/** DHCPv6 DUID types */ +#define DHCP6_DUID_LLT 1 /* LLT: Link-layer Address Plus Time */ +#define DHCP6_DUID_EN 2 /* EN: Enterprise number */ +#define DHCP6_DUID_LL 3 /* LL: Link-layer Address */ +#define DHCP6_DUID_UUID 4 /* UUID (RFC 6355) */ + +/* DHCPv6 options */ +#define DHCP6_OPTION_CLIENTID 1 +#define DHCP6_OPTION_SERVERID 2 +#define DHCP6_OPTION_IA_NA 3 +#define DHCP6_OPTION_IA_TA 4 +#define DHCP6_OPTION_IAADDR 5 +#define DHCP6_OPTION_ORO 6 +#define DHCP6_OPTION_PREFERENCE 7 +#define DHCP6_OPTION_ELAPSED_TIME 8 +#define DHCP6_OPTION_RELAY_MSG 9 +#define DHCP6_OPTION_AUTH 11 +#define DHCP6_OPTION_UNICAST 12 +#define DHCP6_OPTION_STATUS_CODE 13 +#define DHCP6_OPTION_RAPID_COMMIT 14 +#define DHCP6_OPTION_USER_CLASS 15 +#define DHCP6_OPTION_VENDOR_CLASS 16 +#define DHCP6_OPTION_VENDOR_OPTS 17 +#define DHCP6_OPTION_INTERFACE_ID 18 +#define DHCP6_OPTION_RECONF_MSG 19 +#define DHCP6_OPTION_RECONF_ACCEPT 20 +/* More options see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */ +#define DHCP6_OPTION_DNS_SERVERS 23 /* RFC 3646 */ +#define DHCP6_OPTION_DOMAIN_LIST 24 /* RFC 3646 */ +#define DHCP6_OPTION_SNTP_SERVERS 31 /* RFC 4075 */ + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_DHCP6_H */ diff --git a/middleware/lwip/src/include/lwip/prot/dns.h b/middleware/lwip/src/include/lwip/prot/dns.h new file mode 100644 index 0000000..94782d6 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/dns.h @@ -0,0 +1,140 @@ +/** + * @file + * DNS - host name to IP address resolver. + */ + +/* + * Port to lwIP from uIP + * by Jim Pettinato April 2007 + * + * security fixes and more by Simon Goldschmidt + * + * uIP version Copyright (c) 2002-2003, Adam Dunkels. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef LWIP_HDR_PROT_DNS_H +#define LWIP_HDR_PROT_DNS_H + +#include "lwip/arch.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** DNS server port address */ +#ifndef DNS_SERVER_PORT +#define DNS_SERVER_PORT 53 +#endif + +/* DNS field TYPE used for "Resource Records" */ +#define DNS_RRTYPE_A 1 /* a host address */ +#define DNS_RRTYPE_NS 2 /* an authoritative name server */ +#define DNS_RRTYPE_MD 3 /* a mail destination (Obsolete - use MX) */ +#define DNS_RRTYPE_MF 4 /* a mail forwarder (Obsolete - use MX) */ +#define DNS_RRTYPE_CNAME 5 /* the canonical name for an alias */ +#define DNS_RRTYPE_SOA 6 /* marks the start of a zone of authority */ +#define DNS_RRTYPE_MB 7 /* a mailbox domain name (EXPERIMENTAL) */ +#define DNS_RRTYPE_MG 8 /* a mail group member (EXPERIMENTAL) */ +#define DNS_RRTYPE_MR 9 /* a mail rename domain name (EXPERIMENTAL) */ +#define DNS_RRTYPE_NULL 10 /* a null RR (EXPERIMENTAL) */ +#define DNS_RRTYPE_WKS 11 /* a well known service description */ +#define DNS_RRTYPE_PTR 12 /* a domain name pointer */ +#define DNS_RRTYPE_HINFO 13 /* host information */ +#define DNS_RRTYPE_MINFO 14 /* mailbox or mail list information */ +#define DNS_RRTYPE_MX 15 /* mail exchange */ +#define DNS_RRTYPE_TXT 16 /* text strings */ +#define DNS_RRTYPE_AAAA 28 /* IPv6 address */ +#define DNS_RRTYPE_SRV 33 /* service location */ +#define DNS_RRTYPE_ANY 255 /* any type */ + +/* DNS field CLASS used for "Resource Records" */ +#define DNS_RRCLASS_IN 1 /* the Internet */ +#define DNS_RRCLASS_CS 2 /* the CSNET class (Obsolete - used only for examples in some obsolete RFCs) */ +#define DNS_RRCLASS_CH 3 /* the CHAOS class */ +#define DNS_RRCLASS_HS 4 /* Hesiod [Dyer 87] */ +#define DNS_RRCLASS_ANY 255 /* any class */ +#define DNS_RRCLASS_FLUSH 0x800 /* Flush bit */ + +/* DNS protocol flags */ +#define DNS_FLAG1_RESPONSE 0x80 +#define DNS_FLAG1_OPCODE_STATUS 0x10 +#define DNS_FLAG1_OPCODE_INVERSE 0x08 +#define DNS_FLAG1_OPCODE_STANDARD 0x00 +#define DNS_FLAG1_AUTHORATIVE 0x04 +#define DNS_FLAG1_TRUNC 0x02 +#define DNS_FLAG1_RD 0x01 +#define DNS_FLAG2_RA 0x80 +#define DNS_FLAG2_ERR_MASK 0x0f +#define DNS_FLAG2_ERR_NONE 0x00 +#define DNS_FLAG2_ERR_NAME 0x03 + +#define DNS_HDR_GET_OPCODE(hdr) ((((hdr)->flags1) >> 3) & 0xF) + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +/** DNS message header */ +struct dns_hdr { + PACK_STRUCT_FIELD(u16_t id); + PACK_STRUCT_FLD_8(u8_t flags1); + PACK_STRUCT_FLD_8(u8_t flags2); + PACK_STRUCT_FIELD(u16_t numquestions); + PACK_STRUCT_FIELD(u16_t numanswers); + PACK_STRUCT_FIELD(u16_t numauthrr); + PACK_STRUCT_FIELD(u16_t numextrarr); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +#define SIZEOF_DNS_HDR 12 + + +/* Multicast DNS definitions */ + +/** UDP port for multicast DNS queries */ +#ifndef DNS_MQUERY_PORT +#define DNS_MQUERY_PORT 5353 +#endif + +/* IPv4 group for multicast DNS queries: 224.0.0.251 */ +#ifndef DNS_MQUERY_IPV4_GROUP_INIT +#define DNS_MQUERY_IPV4_GROUP_INIT IPADDR4_INIT_BYTES(224,0,0,251) +#endif + +/* IPv6 group for multicast DNS queries: FF02::FB */ +#ifndef DNS_MQUERY_IPV6_GROUP_INIT +#define DNS_MQUERY_IPV6_GROUP_INIT IPADDR6_INIT_HOST(0xFF020000,0,0,0xFB) +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_DNS_H */ diff --git a/middleware/lwip/src/include/lwip/prot/etharp.h b/middleware/lwip/src/include/lwip/prot/etharp.h new file mode 100644 index 0000000..811c228 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/etharp.h @@ -0,0 +1,114 @@ +/** + * @file + * ARP protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_ETHARP_H +#define LWIP_HDR_PROT_ETHARP_H + +#include "lwip/arch.h" +#include "lwip/prot/ethernet.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef ETHARP_HWADDR_LEN +#define ETHARP_HWADDR_LEN ETH_HWADDR_LEN +#endif + +/** + * struct ip4_addr_wordaligned is used in the definition of the ARP packet format in + * order to support compilers that don't have structure packing. + */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip4_addr_wordaligned { + PACK_STRUCT_FIELD(u16_t addrw[2]); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** MEMCPY-like copying of IP addresses where addresses are known to be + * 16-bit-aligned if the port is correctly configured (so a port could define + * this to copying 2 u16_t's) - no NULL-pointer-checking needed. */ +#ifndef IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T +#define IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(dest, src) SMEMCPY(dest, src, sizeof(ip4_addr_t)) +#endif + + /** MEMCPY-like copying of IP addresses where addresses are known to be + * 16-bit-aligned if the port is correctly configured (so a port could define + * this to copying 2 u16_t's) - no NULL-pointer-checking needed. */ +#ifndef IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T +#define IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T(dest, src) SMEMCPY(dest, src, sizeof(ip4_addr_t)) +#endif + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +/** the ARP message, see RFC 826 ("Packet format") */ +struct etharp_hdr { + PACK_STRUCT_FIELD(u16_t hwtype); + PACK_STRUCT_FIELD(u16_t proto); + PACK_STRUCT_FLD_8(u8_t hwlen); + PACK_STRUCT_FLD_8(u8_t protolen); + PACK_STRUCT_FIELD(u16_t opcode); + PACK_STRUCT_FLD_S(struct eth_addr shwaddr); + PACK_STRUCT_FLD_S(struct ip4_addr_wordaligned sipaddr); + PACK_STRUCT_FLD_S(struct eth_addr dhwaddr); + PACK_STRUCT_FLD_S(struct ip4_addr_wordaligned dipaddr); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#define SIZEOF_ETHARP_HDR 28 + +/* ARP message types (opcodes) */ +enum etharp_opcode { + ARP_REQUEST = 1, + ARP_REPLY = 2 +}; + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_ETHARP_H */ diff --git a/middleware/lwip/src/include/lwip/prot/ethernet.h b/middleware/lwip/src/include/lwip/prot/ethernet.h new file mode 100644 index 0000000..d16b604 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/ethernet.h @@ -0,0 +1,127 @@ +/** + * @file + * Ethernet protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_ETHERNET_H +#define LWIP_HDR_PROT_ETHERNET_H + +#include "lwip/arch.h" +#include "lwip/prot/ieee.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef ETH_HWADDR_LEN +#ifdef ETHARP_HWADDR_LEN +#define ETH_HWADDR_LEN ETHARP_HWADDR_LEN /* compatibility mode */ +#else +#define ETH_HWADDR_LEN 6 +#endif +#endif + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +/** An Ethernet MAC address */ +struct eth_addr { + PACK_STRUCT_FLD_8(u8_t addr[ETH_HWADDR_LEN]); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** Initialize a struct eth_addr with its 6 bytes (takes care of correct braces) */ +#define ETH_ADDR(b0, b1, b2, b3, b4, b5) {{b0, b1, b2, b3, b4, b5}} + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +/** Ethernet header */ +struct eth_hdr { +#if ETH_PAD_SIZE + PACK_STRUCT_FLD_8(u8_t padding[ETH_PAD_SIZE]); +#endif + PACK_STRUCT_FLD_S(struct eth_addr dest); + PACK_STRUCT_FLD_S(struct eth_addr src); + PACK_STRUCT_FIELD(u16_t type); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE) + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +/** VLAN header inserted between ethernet header and payload + * if 'type' in ethernet header is ETHTYPE_VLAN. + * See IEEE802.Q */ +struct eth_vlan_hdr { + PACK_STRUCT_FIELD(u16_t prio_vid); + PACK_STRUCT_FIELD(u16_t tpid); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#define SIZEOF_VLAN_HDR 4 +#define VLAN_ID(vlan_hdr) (lwip_htons((vlan_hdr)->prio_vid) & 0xFFF) + +/** The 24-bit IANA IPv4-multicast OUI is 01-00-5e: */ +#define LL_IP4_MULTICAST_ADDR_0 0x01 +#define LL_IP4_MULTICAST_ADDR_1 0x00 +#define LL_IP4_MULTICAST_ADDR_2 0x5e + +/** IPv6 multicast uses this prefix */ +#define LL_IP6_MULTICAST_ADDR_0 0x33 +#define LL_IP6_MULTICAST_ADDR_1 0x33 + +/* eth_addr_cmp is deprecated, use eth_addr_eq */ +#define eth_addr_cmp(addr1, addr2) eth_addr_eq((addr1), (addr2)) +#define eth_addr_eq(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETH_HWADDR_LEN) == 0) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_ETHERNET_H */ diff --git a/middleware/lwip/src/include/lwip/prot/iana.h b/middleware/lwip/src/include/lwip/prot/iana.h new file mode 100644 index 0000000..32890cc --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/iana.h @@ -0,0 +1,97 @@ +/** + * @file + * IANA assigned numbers (RFC 1700 and successors) + * + * @defgroup iana IANA assigned numbers + * @ingroup infrastructure + */ + +/* + * Copyright (c) 2017 Dirk Ziegelmeier. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#ifndef LWIP_HDR_PROT_IANA_H +#define LWIP_HDR_PROT_IANA_H + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @ingroup iana + * Hardware types + */ +enum lwip_iana_hwtype { + /** Ethernet */ + LWIP_IANA_HWTYPE_ETHERNET = 1 +}; + +/** + * @ingroup iana + * Port numbers + * https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt + */ +enum lwip_iana_port_number { + /** SMTP */ + LWIP_IANA_PORT_SMTP = 25, + /** DHCP server */ + LWIP_IANA_PORT_DHCP_SERVER = 67, + /** DHCP client */ + LWIP_IANA_PORT_DHCP_CLIENT = 68, + /** TFTP */ + LWIP_IANA_PORT_TFTP = 69, + /** HTTP */ + LWIP_IANA_PORT_HTTP = 80, + /** SNTP */ + LWIP_IANA_PORT_SNTP = 123, + /** NETBIOS */ + LWIP_IANA_PORT_NETBIOS = 137, + /** SNMP */ + LWIP_IANA_PORT_SNMP = 161, + /** SNMP traps */ + LWIP_IANA_PORT_SNMP_TRAP = 162, + /** HTTPS */ + LWIP_IANA_PORT_HTTPS = 443, + /** SMTPS */ + LWIP_IANA_PORT_SMTPS = 465, + /** MQTT */ + LWIP_IANA_PORT_MQTT = 1883, + /** MDNS */ + LWIP_IANA_PORT_MDNS = 5353, + /** Secure MQTT */ + LWIP_IANA_PORT_SECURE_MQTT = 8883 +}; + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_IANA_H */ diff --git a/middleware/lwip/src/include/lwip/prot/icmp.h b/middleware/lwip/src/include/lwip/prot/icmp.h new file mode 100644 index 0000000..1fe12d9 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/icmp.h @@ -0,0 +1,105 @@ +/** + * @file + * ICMP protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_ICMP_H +#define LWIP_HDR_PROT_ICMP_H + +#include "lwip/arch.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define ICMP_ER 0 /* echo reply */ +#define ICMP_DUR 3 /* destination unreachable */ +#define ICMP_SQ 4 /* source quench */ +#define ICMP_RD 5 /* redirect */ +#define ICMP_ECHO 8 /* echo */ +#define ICMP_TE 11 /* time exceeded */ +#define ICMP_PP 12 /* parameter problem */ +#define ICMP_TS 13 /* timestamp */ +#define ICMP_TSR 14 /* timestamp reply */ +#define ICMP_IRQ 15 /* information request */ +#define ICMP_IR 16 /* information reply */ +#define ICMP_AM 17 /* address mask request */ +#define ICMP_AMR 18 /* address mask reply */ + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +/** The standard ICMP header (unspecified 32 bit data) */ +PACK_STRUCT_BEGIN +struct icmp_hdr { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FIELD(u32_t data); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/* Compatibility defines, old versions used to combine type and code to an u16_t */ +#define ICMPH_TYPE(hdr) ((hdr)->type) +#define ICMPH_CODE(hdr) ((hdr)->code) +#define ICMPH_TYPE_SET(hdr, t) ((hdr)->type = (t)) +#define ICMPH_CODE_SET(hdr, c) ((hdr)->code = (c)) + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +/** This is the standard ICMP header only that the u32_t data + * is split to two u16_t like ICMP echo needs it. + */ +PACK_STRUCT_BEGIN +struct icmp_echo_hdr { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FIELD(u16_t id); + PACK_STRUCT_FIELD(u16_t seqno); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_ICMP_H */ diff --git a/middleware/lwip/src/include/lwip/prot/icmp6.h b/middleware/lwip/src/include/lwip/prot/icmp6.h new file mode 100644 index 0000000..36989f6 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/icmp6.h @@ -0,0 +1,172 @@ +/** + * @file + * ICMP6 protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_ICMP6_H +#define LWIP_HDR_PROT_ICMP6_H + +#include "lwip/arch.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** ICMP type */ +enum icmp6_type { + /** Destination unreachable */ + ICMP6_TYPE_DUR = 1, + /** Packet too big */ + ICMP6_TYPE_PTB = 2, + /** Time exceeded */ + ICMP6_TYPE_TE = 3, + /** Parameter problem */ + ICMP6_TYPE_PP = 4, + /** Private experimentation */ + ICMP6_TYPE_PE1 = 100, + /** Private experimentation */ + ICMP6_TYPE_PE2 = 101, + /** Reserved for expansion of error messages */ + ICMP6_TYPE_RSV_ERR = 127, + + /** Echo request */ + ICMP6_TYPE_EREQ = 128, + /** Echo reply */ + ICMP6_TYPE_EREP = 129, + /** Multicast listener query */ + ICMP6_TYPE_MLQ = 130, + /** Multicast listener report */ + ICMP6_TYPE_MLR = 131, + /** Multicast listener done */ + ICMP6_TYPE_MLD = 132, + /** Router solicitation */ + ICMP6_TYPE_RS = 133, + /** Router advertisement */ + ICMP6_TYPE_RA = 134, + /** Neighbor solicitation */ + ICMP6_TYPE_NS = 135, + /** Neighbor advertisement */ + ICMP6_TYPE_NA = 136, + /** Redirect */ + ICMP6_TYPE_RD = 137, + /** Multicast router advertisement */ + ICMP6_TYPE_MRA = 151, + /** Multicast router solicitation */ + ICMP6_TYPE_MRS = 152, + /** Multicast router termination */ + ICMP6_TYPE_MRT = 153, + /** Private experimentation */ + ICMP6_TYPE_PE3 = 200, + /** Private experimentation */ + ICMP6_TYPE_PE4 = 201, + /** Reserved for expansion of informational messages */ + ICMP6_TYPE_RSV_INF = 255 +}; + +/** ICMP destination unreachable codes */ +enum icmp6_dur_code { + /** No route to destination */ + ICMP6_DUR_NO_ROUTE = 0, + /** Communication with destination administratively prohibited */ + ICMP6_DUR_PROHIBITED = 1, + /** Beyond scope of source address */ + ICMP6_DUR_SCOPE = 2, + /** Address unreachable */ + ICMP6_DUR_ADDRESS = 3, + /** Port unreachable */ + ICMP6_DUR_PORT = 4, + /** Source address failed ingress/egress policy */ + ICMP6_DUR_POLICY = 5, + /** Reject route to destination */ + ICMP6_DUR_REJECT_ROUTE = 6 +}; + +/** ICMP time exceeded codes */ +enum icmp6_te_code { + /** Hop limit exceeded in transit */ + ICMP6_TE_HL = 0, + /** Fragment reassembly time exceeded */ + ICMP6_TE_FRAG = 1 +}; + +/** ICMP parameter code */ +enum icmp6_pp_code { + /** Erroneous header field encountered */ + ICMP6_PP_FIELD = 0, + /** Unrecognized next header type encountered */ + ICMP6_PP_HEADER = 1, + /** Unrecognized IPv6 option encountered */ + ICMP6_PP_OPTION = 2 +}; + +/** This is the standard ICMP6 header. */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct icmp6_hdr { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FIELD(u32_t data); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#define ICMP6_HLEN 8 + +/** This is the ICMP6 header adapted for echo req/resp. */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct icmp6_echo_hdr { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FIELD(u16_t id); + PACK_STRUCT_FIELD(u16_t seqno); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_ICMP6_H */ diff --git a/middleware/lwip/src/include/lwip/prot/ieee.h b/middleware/lwip/src/include/lwip/prot/ieee.h new file mode 100644 index 0000000..cd4d2de --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/ieee.h @@ -0,0 +1,91 @@ +/** + * @file + * IEEE assigned numbers + * + * @defgroup ieee IEEE assigned numbers + * @ingroup infrastructure + */ + +/* + * Copyright (c) 2017 Dirk Ziegelmeier. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ + +#ifndef LWIP_HDR_PROT_IEEE_H +#define LWIP_HDR_PROT_IEEE_H + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @ingroup ieee + * A list of often ethtypes (although lwIP does not use all of them). + */ +enum lwip_ieee_eth_type { + /** Internet protocol v4 */ + ETHTYPE_IP = 0x0800U, + /** Address resolution protocol */ + ETHTYPE_ARP = 0x0806U, + /** Wake on lan */ + ETHTYPE_WOL = 0x0842U, + /** RARP */ + ETHTYPE_RARP = 0x8035U, + /** Virtual local area network */ + ETHTYPE_VLAN = 0x8100U, + /** Internet protocol v6 */ + ETHTYPE_IPV6 = 0x86DDU, + /** PPP Over Ethernet Discovery Stage */ + ETHTYPE_PPPOEDISC = 0x8863U, + /** PPP Over Ethernet Session Stage */ + ETHTYPE_PPPOE = 0x8864U, + /** Jumbo Frames */ + ETHTYPE_JUMBO = 0x8870U, + /** Process field network */ + ETHTYPE_PROFINET = 0x8892U, + /** Ethernet for control automation technology */ + ETHTYPE_ETHERCAT = 0x88A4U, + /** Link layer discovery protocol */ + ETHTYPE_LLDP = 0x88CCU, + /** Serial real-time communication system */ + ETHTYPE_SERCOS = 0x88CDU, + /** Media redundancy protocol */ + ETHTYPE_MRP = 0x88E3U, + /** Precision time protocol */ + ETHTYPE_PTP = 0x88F7U, + /** Q-in-Q, 802.1ad */ + ETHTYPE_QINQ = 0x9100U +}; + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_IEEE_H */ diff --git a/middleware/lwip/src/include/lwip/prot/igmp.h b/middleware/lwip/src/include/lwip/prot/igmp.h new file mode 100644 index 0000000..46b81a9 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/igmp.h @@ -0,0 +1,90 @@ +/** + * @file + * IGMP protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_IGMP_H +#define LWIP_HDR_PROT_IGMP_H + +#include "lwip/arch.h" +#include "lwip/prot/ip4.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * IGMP constants + */ +#define IGMP_TTL 1 +#define IGMP_MINLEN 8 +#define ROUTER_ALERT 0x9404U +#define ROUTER_ALERTLEN 4 + +/* + * IGMP message types, including version number. + */ +#define IGMP_MEMB_QUERY 0x11 /* Membership query */ +#define IGMP_V1_MEMB_REPORT 0x12 /* Ver. 1 membership report */ +#define IGMP_V2_MEMB_REPORT 0x16 /* Ver. 2 membership report */ +#define IGMP_LEAVE_GROUP 0x17 /* Leave-group message */ + +/* Group membership states */ +#define IGMP_GROUP_NON_MEMBER 0 +#define IGMP_GROUP_DELAYING_MEMBER 1 +#define IGMP_GROUP_IDLE_MEMBER 2 + +/** + * IGMP packet format. + */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct igmp_msg { + PACK_STRUCT_FLD_8(u8_t igmp_msgtype); + PACK_STRUCT_FLD_8(u8_t igmp_maxresp); + PACK_STRUCT_FIELD(u16_t igmp_checksum); + PACK_STRUCT_FLD_S(ip4_addr_p_t igmp_group_address); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_IGMP_H */ diff --git a/middleware/lwip/src/include/lwip/prot/ip.h b/middleware/lwip/src/include/lwip/prot/ip.h new file mode 100644 index 0000000..223158f --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/ip.h @@ -0,0 +1,59 @@ +/** + * @file + * IP protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_IP_H +#define LWIP_HDR_PROT_IP_H + +#include "lwip/arch.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define IP_PROTO_ICMP 1 +#define IP_PROTO_IGMP 2 +#define IP_PROTO_UDP 17 +#define IP_PROTO_UDPLITE 136 +#define IP_PROTO_TCP 6 + +/** This operates on a void* by loading the first byte */ +#define IP_HDR_GET_VERSION(ptr) ((*(u8_t*)(ptr)) >> 4) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_IP_H */ diff --git a/middleware/lwip/src/include/lwip/prot/ip4.h b/middleware/lwip/src/include/lwip/prot/ip4.h new file mode 100644 index 0000000..9347461 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/ip4.h @@ -0,0 +1,131 @@ +/** + * @file + * IPv4 protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_IP4_H +#define LWIP_HDR_PROT_IP4_H + +#include "lwip/arch.h" +#include "lwip/ip4_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** This is the packed version of ip4_addr_t, + used in network headers that are itself packed */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip4_addr_packed { + PACK_STRUCT_FIELD(u32_t addr); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +typedef struct ip4_addr_packed ip4_addr_p_t; + +/* Size of the IPv4 header. Same as 'sizeof(struct ip_hdr)'. */ +#define IP_HLEN 20 +/* Maximum size of the IPv4 header with options. */ +#define IP_HLEN_MAX 60 + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +/* The IPv4 header */ +struct ip_hdr { + /* version / header length */ + PACK_STRUCT_FLD_8(u8_t _v_hl); + /* type of service */ + PACK_STRUCT_FLD_8(u8_t _tos); + /* total length */ + PACK_STRUCT_FIELD(u16_t _len); + /* identification */ + PACK_STRUCT_FIELD(u16_t _id); + /* fragment offset field */ + PACK_STRUCT_FIELD(u16_t _offset); +#define IP_RF 0x8000U /* reserved fragment flag */ +#define IP_DF 0x4000U /* don't fragment flag */ +#define IP_MF 0x2000U /* more fragments flag */ +#define IP_OFFMASK 0x1fffU /* mask for fragmenting bits */ + /* time to live */ + PACK_STRUCT_FLD_8(u8_t _ttl); + /* protocol*/ + PACK_STRUCT_FLD_8(u8_t _proto); + /* checksum */ + PACK_STRUCT_FIELD(u16_t _chksum); + /* source and destination IP addresses */ + PACK_STRUCT_FLD_S(ip4_addr_p_t src); + PACK_STRUCT_FLD_S(ip4_addr_p_t dest); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/* Macros to get struct ip_hdr fields: */ +#define IPH_V(hdr) ((hdr)->_v_hl >> 4) +#define IPH_HL(hdr) ((hdr)->_v_hl & 0x0f) +#define IPH_HL_BYTES(hdr) ((u8_t)(IPH_HL(hdr) * 4)) +#define IPH_TOS(hdr) ((hdr)->_tos) +#define IPH_LEN(hdr) ((hdr)->_len) +#define IPH_ID(hdr) ((hdr)->_id) +#define IPH_OFFSET(hdr) ((hdr)->_offset) +#define IPH_OFFSET_BYTES(hdr) ((u16_t)((lwip_ntohs(IPH_OFFSET(hdr)) & IP_OFFMASK) * 8U)) +#define IPH_TTL(hdr) ((hdr)->_ttl) +#define IPH_PROTO(hdr) ((hdr)->_proto) +#define IPH_CHKSUM(hdr) ((hdr)->_chksum) + +/* Macros to set struct ip_hdr fields: */ +#define IPH_VHL_SET(hdr, v, hl) (hdr)->_v_hl = (u8_t)((((v) << 4) | (hl))) +#define IPH_TOS_SET(hdr, tos) (hdr)->_tos = (tos) +#define IPH_LEN_SET(hdr, len) (hdr)->_len = (len) +#define IPH_ID_SET(hdr, id) (hdr)->_id = (id) +#define IPH_OFFSET_SET(hdr, off) (hdr)->_offset = (off) +#define IPH_TTL_SET(hdr, ttl) (hdr)->_ttl = (u8_t)(ttl) +#define IPH_PROTO_SET(hdr, proto) (hdr)->_proto = (u8_t)(proto) +#define IPH_CHKSUM_SET(hdr, chksum) (hdr)->_chksum = (chksum) + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_IP4_H */ diff --git a/middleware/lwip/src/include/lwip/prot/ip6.h b/middleware/lwip/src/include/lwip/prot/ip6.h new file mode 100644 index 0000000..7df81ed --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/ip6.h @@ -0,0 +1,235 @@ +/** + * @file + * IPv6 protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_IP6_H +#define LWIP_HDR_PROT_IP6_H + +#include "lwip/arch.h" +#include "lwip/ip6_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define IP6_MIN_MTU_LENGTH 1280 + +/** This is the packed version of ip6_addr_t, + used in network headers that are itself packed */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip6_addr_packed { + PACK_STRUCT_FIELD(u32_t addr[4]); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +typedef struct ip6_addr_packed ip6_addr_p_t; + +#define IP6_HLEN 40 + +#define IP6_NEXTH_HOPBYHOP 0 +#define IP6_NEXTH_TCP 6 +#define IP6_NEXTH_UDP 17 +#define IP6_NEXTH_ENCAPS 41 +#define IP6_NEXTH_ROUTING 43 +#define IP6_NEXTH_FRAGMENT 44 +#define IP6_NEXTH_ICMP6 58 +#define IP6_NEXTH_NONE 59 +#define IP6_NEXTH_DESTOPTS 60 +#define IP6_NEXTH_UDPLITE 136 + +/** The IPv6 header. */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip6_hdr { + /** version / traffic class / flow label */ + PACK_STRUCT_FIELD(u32_t _v_tc_fl); + /** payload length */ + PACK_STRUCT_FIELD(u16_t _plen); + /** next header */ + PACK_STRUCT_FLD_8(u8_t _nexth); + /** hop limit */ + PACK_STRUCT_FLD_8(u8_t _hoplim); + /** source and destination IP addresses */ + PACK_STRUCT_FLD_S(ip6_addr_p_t src); + PACK_STRUCT_FLD_S(ip6_addr_p_t dest); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +#define IP6H_V(hdr) ((lwip_ntohl((hdr)->_v_tc_fl) >> 28) & 0x0f) +#define IP6H_TC(hdr) ((lwip_ntohl((hdr)->_v_tc_fl) >> 20) & 0xff) +#define IP6H_FL(hdr) (lwip_ntohl((hdr)->_v_tc_fl) & 0x000fffff) +#define IP6H_PLEN(hdr) (lwip_ntohs((hdr)->_plen)) +#define IP6H_NEXTH(hdr) ((hdr)->_nexth) +#define IP6H_NEXTH_P(hdr) ((u8_t *)(hdr) + 6) +#define IP6H_HOPLIM(hdr) ((hdr)->_hoplim) +#define IP6H_VTCFL_SET(hdr, v, tc, fl) (hdr)->_v_tc_fl = (lwip_htonl((((u32_t)(v)) << 28) | (((u32_t)(tc)) << 20) | (fl))) +#define IP6H_PLEN_SET(hdr, plen) (hdr)->_plen = lwip_htons(plen) +#define IP6H_NEXTH_SET(hdr, nexth) (hdr)->_nexth = (nexth) +#define IP6H_HOPLIM_SET(hdr, hl) (hdr)->_hoplim = (u8_t)(hl) + +/* ipv6 extended options header */ +#define IP6_PAD1_OPTION 0 +#define IP6_PADN_OPTION 1 +#define IP6_ROUTER_ALERT_OPTION 5 +#define IP6_JUMBO_OPTION 194 +#define IP6_HOME_ADDRESS_OPTION 201 +#define IP6_ROUTER_ALERT_DLEN 2 +#define IP6_ROUTER_ALERT_VALUE_MLD 0 + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip6_opt_hdr { + /* router alert option type */ + PACK_STRUCT_FLD_8(u8_t _opt_type); + /* router alert option data len */ + PACK_STRUCT_FLD_8(u8_t _opt_dlen); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +#define IP6_OPT_HLEN 2 +#define IP6_OPT_TYPE_ACTION(hdr) ((((hdr)->_opt_type) >> 6) & 0x3) +#define IP6_OPT_TYPE_CHANGE(hdr) ((((hdr)->_opt_type) >> 5) & 0x1) +#define IP6_OPT_TYPE(hdr) ((hdr)->_opt_type) +#define IP6_OPT_DLEN(hdr) ((hdr)->_opt_dlen) + +/* Hop-by-Hop header. */ +#define IP6_HBH_HLEN 2 + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip6_hbh_hdr { + /* next header */ + PACK_STRUCT_FLD_8(u8_t _nexth); + /* header length in 8-octet units */ + PACK_STRUCT_FLD_8(u8_t _hlen); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +#define IP6_HBH_NEXTH(hdr) ((hdr)->_nexth) + +/* Destination header. */ +#define IP6_DEST_HLEN 2 + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip6_dest_hdr { + /* next header */ + PACK_STRUCT_FLD_8(u8_t _nexth); + /* header length in 8-octet units */ + PACK_STRUCT_FLD_8(u8_t _hlen); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +#define IP6_DEST_NEXTH(hdr) ((hdr)->_nexth) + +/* Routing header */ +#define IP6_ROUT_TYPE2 2 +#define IP6_ROUT_RPL 3 + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip6_rout_hdr { + /* next header */ + PACK_STRUCT_FLD_8(u8_t _nexth); + /* reserved */ + PACK_STRUCT_FLD_8(u8_t _hlen); + /* fragment offset */ + PACK_STRUCT_FIELD(u8_t _routing_type); + /* fragmented packet identification */ + PACK_STRUCT_FIELD(u8_t _segments_left); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +#define IP6_ROUT_NEXTH(hdr) ((hdr)->_nexth) +#define IP6_ROUT_TYPE(hdr) ((hdr)->_routing_type) +#define IP6_ROUT_SEG_LEFT(hdr) ((hdr)->_segments_left) + +/* Fragment header. */ +#define IP6_FRAG_HLEN 8 +#define IP6_FRAG_OFFSET_MASK 0xfff8 +#define IP6_FRAG_MORE_FLAG 0x0001 + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ip6_frag_hdr { + /* next header */ + PACK_STRUCT_FLD_8(u8_t _nexth); + /* reserved */ + PACK_STRUCT_FLD_8(u8_t reserved); + /* fragment offset */ + PACK_STRUCT_FIELD(u16_t _fragment_offset); + /* fragmented packet identification */ + PACK_STRUCT_FIELD(u32_t _identification); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +#define IP6_FRAG_NEXTH(hdr) ((hdr)->_nexth) +#define IP6_FRAG_MBIT(hdr) (lwip_ntohs((hdr)->_fragment_offset) & 0x1) +#define IP6_FRAG_ID(hdr) (lwip_ntohl((hdr)->_identification)) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_IP6_H */ diff --git a/middleware/lwip/src/include/lwip/prot/mld6.h b/middleware/lwip/src/include/lwip/prot/mld6.h new file mode 100644 index 0000000..71f1dcb --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/mld6.h @@ -0,0 +1,71 @@ +/** + * @file + * MLD6 protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_MLD6_H +#define LWIP_HDR_PROT_MLD6_H + +#include "lwip/arch.h" +#include "lwip/prot/ip6.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define MLD6_HBH_HLEN 8 +/** Multicast listener report/query/done message header. */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct mld_header { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FIELD(u16_t max_resp_delay); + PACK_STRUCT_FIELD(u16_t reserved); + PACK_STRUCT_FLD_S(ip6_addr_p_t multicast_address); + /* Options follow. */ +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_MLD6_H */ diff --git a/middleware/lwip/src/include/lwip/prot/nd6.h b/middleware/lwip/src/include/lwip/prot/nd6.h new file mode 100644 index 0000000..c270d07 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/nd6.h @@ -0,0 +1,274 @@ +/** + * @file + * ND6 protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_ND6_H +#define LWIP_HDR_PROT_ND6_H + +#include "lwip/arch.h" +#include "lwip/ip6_addr.h" +#include "lwip/prot/ip6.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** Neighbor solicitation message header. */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ns_header { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FIELD(u32_t reserved); + PACK_STRUCT_FLD_S(ip6_addr_p_t target_address); + /* Options follow. */ +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** Neighbor advertisement message header. */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct na_header { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FLD_8(u8_t flags); + PACK_STRUCT_FLD_8(u8_t reserved[3]); + PACK_STRUCT_FLD_S(ip6_addr_p_t target_address); + /* Options follow. */ +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +#define ND6_FLAG_ROUTER (0x80) +#define ND6_FLAG_SOLICITED (0x40) +#define ND6_FLAG_OVERRIDE (0x20) + +/** Router solicitation message header. */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct rs_header { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FIELD(u32_t reserved); + /* Options follow. */ +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** Router advertisement message header. */ +#define ND6_RA_FLAG_MANAGED_ADDR_CONFIG (0x80) +#define ND6_RA_FLAG_OTHER_CONFIG (0x40) +#define ND6_RA_FLAG_HOME_AGENT (0x20) +#define ND6_RA_PREFERENCE_MASK (0x18) +#define ND6_RA_PREFERENCE_HIGH (0x08) +#define ND6_RA_PREFERENCE_MEDIUM (0x00) +#define ND6_RA_PREFERENCE_LOW (0x18) +#define ND6_RA_PREFERENCE_DISABLED (0x10) +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct ra_header { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FLD_8(u8_t current_hop_limit); + PACK_STRUCT_FLD_8(u8_t flags); + PACK_STRUCT_FIELD(u16_t router_lifetime); + PACK_STRUCT_FIELD(u32_t reachable_time); + PACK_STRUCT_FIELD(u32_t retrans_timer); + /* Options follow. */ +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** Redirect message header. */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct redirect_header { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FIELD(u32_t reserved); + PACK_STRUCT_FLD_S(ip6_addr_p_t target_address); + PACK_STRUCT_FLD_S(ip6_addr_p_t destination_address); + /* Options follow. */ +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** Link-layer address option. */ +#define ND6_OPTION_TYPE_SOURCE_LLADDR (0x01) +#define ND6_OPTION_TYPE_TARGET_LLADDR (0x02) +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct lladdr_option { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t length); + PACK_STRUCT_FLD_8(u8_t addr[NETIF_MAX_HWADDR_LEN]); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** Prefix information option. */ +#define ND6_OPTION_TYPE_PREFIX_INFO (0x03) +#define ND6_PREFIX_FLAG_ON_LINK (0x80) +#define ND6_PREFIX_FLAG_AUTONOMOUS (0x40) +#define ND6_PREFIX_FLAG_ROUTER_ADDRESS (0x20) +#define ND6_PREFIX_FLAG_SITE_PREFIX (0x10) +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct prefix_option { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t length); + PACK_STRUCT_FLD_8(u8_t prefix_length); + PACK_STRUCT_FLD_8(u8_t flags); + PACK_STRUCT_FIELD(u32_t valid_lifetime); + PACK_STRUCT_FIELD(u32_t preferred_lifetime); + PACK_STRUCT_FLD_8(u8_t reserved2[3]); + PACK_STRUCT_FLD_8(u8_t site_prefix_length); + PACK_STRUCT_FLD_S(ip6_addr_p_t prefix); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** Redirected header option. */ +#define ND6_OPTION_TYPE_REDIR_HDR (0x04) +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct redirected_header_option { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t length); + PACK_STRUCT_FLD_8(u8_t reserved[6]); + /* Portion of redirected packet follows. */ + /* PACK_STRUCT_FLD_8(u8_t redirected[8]); */ +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** MTU option. */ +#define ND6_OPTION_TYPE_MTU (0x05) +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct mtu_option { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t length); + PACK_STRUCT_FIELD(u16_t reserved); + PACK_STRUCT_FIELD(u32_t mtu); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** Route information option. */ +#define ND6_OPTION_TYPE_ROUTE_INFO (24) +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct route_option { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t length); + PACK_STRUCT_FLD_8(u8_t prefix_length); + PACK_STRUCT_FLD_8(u8_t preference); + PACK_STRUCT_FIELD(u32_t route_lifetime); + PACK_STRUCT_FLD_S(ip6_addr_p_t prefix); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/** Recursive DNS Server Option. */ +#define ND6_OPTION_TYPE_RDNSS (25) +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct rdnss_option { + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t length); + PACK_STRUCT_FIELD(u16_t reserved); + PACK_STRUCT_FIELD(u32_t lifetime); + PACK_STRUCT_FLD_S(ip6_addr_p_t rdnss_address[1]); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#define SIZEOF_RDNSS_OPTION_BASE 8 /* size without addresses */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_ND6_H */ diff --git a/middleware/lwip/src/include/lwip/prot/tcp.h b/middleware/lwip/src/include/lwip/prot/tcp.h new file mode 100644 index 0000000..c1d7de1 --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/tcp.h @@ -0,0 +1,100 @@ +/** + * @file + * TCP protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_TCP_H +#define LWIP_HDR_PROT_TCP_H + +#include "lwip/arch.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Length of the TCP header, excluding options. */ +#define TCP_HLEN 20 + +/* Fields are (of course) in network byte order. + * Some fields are converted to host byte order in tcp_input(). + */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct tcp_hdr { + PACK_STRUCT_FIELD(u16_t src); + PACK_STRUCT_FIELD(u16_t dest); + PACK_STRUCT_FIELD(u32_t seqno); + PACK_STRUCT_FIELD(u32_t ackno); + PACK_STRUCT_FIELD(u16_t _hdrlen_rsvd_flags); + PACK_STRUCT_FIELD(u16_t wnd); + PACK_STRUCT_FIELD(u16_t chksum); + PACK_STRUCT_FIELD(u16_t urgp); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/* TCP header flags bits */ +#define TCP_FIN 0x01U +#define TCP_SYN 0x02U +#define TCP_RST 0x04U +#define TCP_PSH 0x08U +#define TCP_ACK 0x10U +#define TCP_URG 0x20U +#define TCP_ECE 0x40U +#define TCP_CWR 0x80U +/* Valid TCP header flags */ +#define TCP_FLAGS 0x3fU + +#define TCP_MAX_OPTION_BYTES 40 + +#define TCPH_HDRLEN(phdr) ((u16_t)(lwip_ntohs((phdr)->_hdrlen_rsvd_flags) >> 12)) +#define TCPH_HDRLEN_BYTES(phdr) ((u8_t)(TCPH_HDRLEN(phdr) << 2)) +#define TCPH_FLAGS(phdr) ((u8_t)((lwip_ntohs((phdr)->_hdrlen_rsvd_flags) & TCP_FLAGS))) + +#define TCPH_HDRLEN_SET(phdr, len) (phdr)->_hdrlen_rsvd_flags = lwip_htons(((len) << 12) | TCPH_FLAGS(phdr)) +#define TCPH_FLAGS_SET(phdr, flags) (phdr)->_hdrlen_rsvd_flags = (((phdr)->_hdrlen_rsvd_flags & PP_HTONS(~TCP_FLAGS)) | lwip_htons(flags)) +#define TCPH_HDRLEN_FLAGS_SET(phdr, len, flags) (phdr)->_hdrlen_rsvd_flags = (u16_t)(lwip_htons((u16_t)((len) << 12) | (flags))) + +#define TCPH_SET_FLAG(phdr, flags ) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags | lwip_htons(flags)) +#define TCPH_UNSET_FLAG(phdr, flags) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags & ~lwip_htons(flags)) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_TCP_H */ diff --git a/middleware/lwip/src/include/lwip/prot/udp.h b/middleware/lwip/src/include/lwip/prot/udp.h new file mode 100644 index 0000000..664f19a --- /dev/null +++ b/middleware/lwip/src/include/lwip/prot/udp.h @@ -0,0 +1,68 @@ +/** + * @file + * UDP protocol definitions + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_PROT_UDP_H +#define LWIP_HDR_PROT_UDP_H + +#include "lwip/arch.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define UDP_HLEN 8 + +/* Fields are (of course) in network byte order. */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct udp_hdr { + PACK_STRUCT_FIELD(u16_t src); + PACK_STRUCT_FIELD(u16_t dest); /* src/dest UDP ports */ + PACK_STRUCT_FIELD(u16_t len); + PACK_STRUCT_FIELD(u16_t chksum); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_PROT_UDP_H */ diff --git a/middleware/lwip/src/include/lwip/raw.h b/middleware/lwip/src/include/lwip/raw.h new file mode 100644 index 0000000..f916ff6 --- /dev/null +++ b/middleware/lwip/src/include/lwip/raw.h @@ -0,0 +1,143 @@ +/** + * @file + * raw API (to be used from TCPIP thread)
+ * See also @ref raw_raw + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_RAW_H +#define LWIP_HDR_RAW_H + +#include "lwip/opt.h" + +#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/pbuf.h" +#include "lwip/def.h" +#include "lwip/ip.h" +#include "lwip/ip_addr.h" +#include "lwip/ip6_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define RAW_FLAGS_CONNECTED 0x01U +#define RAW_FLAGS_HDRINCL 0x02U +#define RAW_FLAGS_MULTICAST_LOOP 0x04U + +struct raw_pcb; + +/** Function prototype for raw pcb receive callback functions. + * @param arg user supplied argument (raw_pcb.recv_arg) + * @param pcb the raw_pcb which received data + * @param p the packet buffer that was received + * @param addr the remote IP address from which the packet was received + * @return 1 if the packet was 'eaten' (aka. deleted), + * 0 if the packet lives on + * If returning 1, the callback is responsible for freeing the pbuf + * if it's not used any more. + */ +typedef u8_t (*raw_recv_fn)(void *arg, struct raw_pcb *pcb, struct pbuf *p, + const ip_addr_t *addr); + +/** the RAW protocol control block */ +struct raw_pcb { + /* Common members of all PCB types */ + IP_PCB; + + struct raw_pcb *next; + + u8_t protocol; + u8_t flags; + +#if LWIP_MULTICAST_TX_OPTIONS + /** outgoing network interface for multicast packets, by interface index (if nonzero) */ + u8_t mcast_ifindex; + /** TTL for outgoing multicast packets */ + u8_t mcast_ttl; +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + + /** receive callback function */ + raw_recv_fn recv; + /* user-supplied argument for the recv callback */ + void *recv_arg; +#if LWIP_IPV6 + /* fields for handling checksum computations as per RFC3542. */ + u16_t chksum_offset; + u8_t chksum_reqd; +#endif +}; + +/* The following functions is the application layer interface to the + RAW code. */ +struct raw_pcb * raw_new (u8_t proto); +struct raw_pcb * raw_new_ip_type(u8_t type, u8_t proto); +void raw_remove (struct raw_pcb *pcb); +err_t raw_bind (struct raw_pcb *pcb, const ip_addr_t *ipaddr); +void raw_bind_netif (struct raw_pcb *pcb, const struct netif *netif); +err_t raw_connect (struct raw_pcb *pcb, const ip_addr_t *ipaddr); +void raw_disconnect (struct raw_pcb *pcb); + +err_t raw_sendto (struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *ipaddr); +err_t raw_sendto_if_src(struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, struct netif *netif, const ip_addr_t *src_ip); +err_t raw_send (struct raw_pcb *pcb, struct pbuf *p); + +void raw_recv (struct raw_pcb *pcb, raw_recv_fn recv, void *recv_arg); + +#define raw_flags(pcb) ((pcb)->flags) +#define raw_setflags(pcb,f) ((pcb)->flags = (f)) + +#define raw_set_flags(pcb, set_flags) do { (pcb)->flags = (u8_t)((pcb)->flags | (set_flags)); } while(0) +#define raw_clear_flags(pcb, clr_flags) do { (pcb)->flags = (u8_t)((pcb)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0) +#define raw_is_flag_set(pcb, flag) (((pcb)->flags & (flag)) != 0) + +#define raw_init() /* Compatibility define, no init needed. */ + +/* for compatibility with older implementation */ +#define raw_new_ip6(proto) raw_new_ip_type(IPADDR_TYPE_V6, proto) + +#if LWIP_MULTICAST_TX_OPTIONS +#define raw_set_multicast_netif_index(pcb, idx) ((pcb)->mcast_ifindex = (idx)) +#define raw_get_multicast_netif_index(pcb) ((pcb)->mcast_ifindex) +#define raw_set_multicast_ttl(pcb, value) ((pcb)->mcast_ttl = (value)) +#define raw_get_multicast_ttl(pcb) ((pcb)->mcast_ttl) +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_RAW */ + +#endif /* LWIP_HDR_RAW_H */ diff --git a/middleware/lwip/src/include/lwip/sio.h b/middleware/lwip/src/include/lwip/sio.h new file mode 100644 index 0000000..7643e19 --- /dev/null +++ b/middleware/lwip/src/include/lwip/sio.h @@ -0,0 +1,142 @@ +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + */ + +/* + * This is the interface to the platform specific serial IO module + * It needs to be implemented by those platforms which need SLIP or PPP + */ + +#ifndef SIO_H +#define SIO_H + +#include "lwip/arch.h" +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* If you want to define sio_fd_t elsewhere or differently, + define this in your cc.h file. */ +#ifndef __sio_fd_t_defined +typedef void * sio_fd_t; +#endif + +/* The following functions can be defined to something else in your cc.h file + or be implemented in your custom sio.c file. */ + +#ifndef sio_open +/** + * Opens a serial device for communication. + * + * @param devnum device number + * @return handle to serial device if successful, NULL otherwise + */ +sio_fd_t sio_open(u8_t devnum); +#endif + +#ifndef sio_send +/** + * Sends a single character to the serial device. + * + * @param c character to send + * @param fd serial device handle + * + * @note This function will block until the character can be sent. + */ +void sio_send(u8_t c, sio_fd_t fd); +#endif + +#ifndef sio_recv +/** + * Receives a single character from the serial device. + * + * @param fd serial device handle + * + * @note This function will block until a character is received. + */ +u8_t sio_recv(sio_fd_t fd); +#endif + +#ifndef sio_read +/** + * Reads from the serial device. + * + * @param fd serial device handle + * @param data pointer to data buffer for receiving + * @param len maximum length (in bytes) of data to receive + * @return number of bytes actually received - may be 0 if aborted by sio_read_abort + * + * @note This function will block until data can be received. The blocking + * can be cancelled by calling sio_read_abort(). + */ +u32_t sio_read(sio_fd_t fd, u8_t *data, u32_t len); +#endif + +#ifndef sio_tryread +/** + * Tries to read from the serial device. Same as sio_read but returns + * immediately if no data is available and never blocks. + * + * @param fd serial device handle + * @param data pointer to data buffer for receiving + * @param len maximum length (in bytes) of data to receive + * @return number of bytes actually received + */ +u32_t sio_tryread(sio_fd_t fd, u8_t *data, u32_t len); +#endif + +#ifndef sio_write +/** + * Writes to the serial device. + * + * @param fd serial device handle + * @param data pointer to data to send + * @param len length (in bytes) of data to send + * @return number of bytes actually sent + * + * @note This function will block until all data can be sent. + */ +u32_t sio_write(sio_fd_t fd, u8_t *data, u32_t len); +#endif + +#ifndef sio_read_abort +/** + * Aborts a blocking sio_read() call. + * + * @param fd serial device handle + */ +void sio_read_abort(sio_fd_t fd); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* SIO_H */ diff --git a/middleware/lwip/src/include/lwip/snmp.h b/middleware/lwip/src/include/lwip/snmp.h new file mode 100644 index 0000000..8704d0b --- /dev/null +++ b/middleware/lwip/src/include/lwip/snmp.h @@ -0,0 +1,213 @@ +/** + * @file + * SNMP support API for implementing netifs and statitics for MIB2 + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Dirk Ziegelmeier + * + */ +#ifndef LWIP_HDR_SNMP_H +#define LWIP_HDR_SNMP_H + +#include "lwip/opt.h" +#include "lwip/ip_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct udp_pcb; +struct netif; + +/** + * @defgroup netif_mib2 MIB2 statistics + * @ingroup netif + */ + +/* MIB2 statistics functions */ +#if MIB2_STATS /* don't build if not configured for use in lwipopts.h */ +/** + * @ingroup netif_mib2 + * @see RFC1213, "MIB-II, 6. Definitions" + */ +enum snmp_ifType { + snmp_ifType_other=1, /* none of the following */ + snmp_ifType_regular1822, + snmp_ifType_hdh1822, + snmp_ifType_ddn_x25, + snmp_ifType_rfc877_x25, + snmp_ifType_ethernet_csmacd, + snmp_ifType_iso88023_csmacd, + snmp_ifType_iso88024_tokenBus, + snmp_ifType_iso88025_tokenRing, + snmp_ifType_iso88026_man, + snmp_ifType_starLan, + snmp_ifType_proteon_10Mbit, + snmp_ifType_proteon_80Mbit, + snmp_ifType_hyperchannel, + snmp_ifType_fddi, + snmp_ifType_lapb, + snmp_ifType_sdlc, + snmp_ifType_ds1, /* T-1 */ + snmp_ifType_e1, /* european equiv. of T-1 */ + snmp_ifType_basicISDN, + snmp_ifType_primaryISDN, /* proprietary serial */ + snmp_ifType_propPointToPointSerial, + snmp_ifType_ppp, + snmp_ifType_softwareLoopback, + snmp_ifType_eon, /* CLNP over IP [11] */ + snmp_ifType_ethernet_3Mbit, + snmp_ifType_nsip, /* XNS over IP */ + snmp_ifType_slip, /* generic SLIP */ + snmp_ifType_ultra, /* ULTRA technologies */ + snmp_ifType_ds3, /* T-3 */ + snmp_ifType_sip, /* SMDS */ + snmp_ifType_frame_relay +}; + +/** This macro has a precision of ~49 days because sys_now returns u32_t. \#define your own if you want ~490 days. */ +#ifndef MIB2_COPY_SYSUPTIME_TO +#define MIB2_COPY_SYSUPTIME_TO(ptrToVal) (*(ptrToVal) = (sys_now() / 10)) +#endif + +/** + * @ingroup netif_mib2 + * Increment stats member for SNMP MIB2 stats (struct stats_mib2_netif_ctrs) + */ +#define MIB2_STATS_NETIF_INC(n, x) do { ++(n)->mib2_counters.x; } while(0) +/** + * @ingroup netif_mib2 + * Add value to stats member for SNMP MIB2 stats (struct stats_mib2_netif_ctrs) + */ +#define MIB2_STATS_NETIF_ADD(n, x, val) do { (n)->mib2_counters.x += (val); } while(0) + +/** + * @ingroup netif_mib2 + * Init MIB2 statistic counters in netif + * @param netif Netif to init + * @param type one of enum @ref snmp_ifType + * @param speed your link speed here (units: bits per second) + */ +#define MIB2_INIT_NETIF(netif, type, speed) do { \ + (netif)->link_type = (type); \ + (netif)->link_speed = (speed);\ + (netif)->ts = 0; \ + (netif)->mib2_counters.ifinoctets = 0; \ + (netif)->mib2_counters.ifinucastpkts = 0; \ + (netif)->mib2_counters.ifinnucastpkts = 0; \ + (netif)->mib2_counters.ifindiscards = 0; \ + (netif)->mib2_counters.ifinerrors = 0; \ + (netif)->mib2_counters.ifinunknownprotos = 0; \ + (netif)->mib2_counters.ifoutoctets = 0; \ + (netif)->mib2_counters.ifoutucastpkts = 0; \ + (netif)->mib2_counters.ifoutnucastpkts = 0; \ + (netif)->mib2_counters.ifoutdiscards = 0; \ + (netif)->mib2_counters.ifouterrors = 0; } while(0) +#else /* MIB2_STATS */ +#ifndef MIB2_COPY_SYSUPTIME_TO +#define MIB2_COPY_SYSUPTIME_TO(ptrToVal) +#endif +#define MIB2_INIT_NETIF(netif, type, speed) +#define MIB2_STATS_NETIF_INC(n, x) +#define MIB2_STATS_NETIF_ADD(n, x, val) +#endif /* MIB2_STATS */ + +/* LWIP MIB2 callbacks */ +#if LWIP_MIB2_CALLBACKS /* don't build if not configured for use in lwipopts.h */ +/* network interface */ +void mib2_netif_added(struct netif *ni); +void mib2_netif_removed(struct netif *ni); + +#if LWIP_IPV4 && LWIP_ARP +/* ARP (for atTable and ipNetToMediaTable) */ +void mib2_add_arp_entry(struct netif *ni, ip4_addr_t *ip); +void mib2_remove_arp_entry(struct netif *ni, ip4_addr_t *ip); +#else /* LWIP_IPV4 && LWIP_ARP */ +#define mib2_add_arp_entry(ni,ip) +#define mib2_remove_arp_entry(ni,ip) +#endif /* LWIP_IPV4 && LWIP_ARP */ + +/* IP */ +#if LWIP_IPV4 +void mib2_add_ip4(struct netif *ni); +void mib2_remove_ip4(struct netif *ni); +void mib2_add_route_ip4(u8_t dflt, struct netif *ni); +void mib2_remove_route_ip4(u8_t dflt, struct netif *ni); +#endif /* LWIP_IPV4 */ + +/* UDP */ +#if LWIP_UDP +void mib2_udp_bind(struct udp_pcb *pcb); +void mib2_udp_unbind(struct udp_pcb *pcb); +#endif /* LWIP_UDP */ + +#else /* LWIP_MIB2_CALLBACKS */ +/* LWIP_MIB2_CALLBACKS support not available */ +/* define everything to be empty */ + +/* network interface */ +#define mib2_netif_added(ni) +#define mib2_netif_removed(ni) + +/* ARP */ +#define mib2_add_arp_entry(ni,ip) +#define mib2_remove_arp_entry(ni,ip) + +/* IP */ +#define mib2_add_ip4(ni) +#define mib2_remove_ip4(ni) +#define mib2_add_route_ip4(dflt, ni) +#define mib2_remove_route_ip4(dflt, ni) + +/* UDP */ +#define mib2_udp_bind(pcb) +#define mib2_udp_unbind(pcb) +#endif /* LWIP_MIB2_CALLBACKS */ + +/* for source-code compatibility reasons only, can be removed (not used internally) */ +#define NETIF_INIT_SNMP MIB2_INIT_NETIF +#define snmp_add_ifinoctets(ni,value) MIB2_STATS_NETIF_ADD(ni, ifinoctets, value) +#define snmp_inc_ifinucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifinucastpkts) +#define snmp_inc_ifinnucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifinnucastpkts) +#define snmp_inc_ifindiscards(ni) MIB2_STATS_NETIF_INC(ni, ifindiscards) +#define snmp_inc_ifinerrors(ni) MIB2_STATS_NETIF_INC(ni, ifinerrors) +#define snmp_inc_ifinunknownprotos(ni) MIB2_STATS_NETIF_INC(ni, ifinunknownprotos) +#define snmp_add_ifoutoctets(ni,value) MIB2_STATS_NETIF_ADD(ni, ifoutoctets, value) +#define snmp_inc_ifoutucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifoutucastpkts) +#define snmp_inc_ifoutnucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifoutnucastpkts) +#define snmp_inc_ifoutdiscards(ni) MIB2_STATS_NETIF_INC(ni, ifoutdiscards) +#define snmp_inc_ifouterrors(ni) MIB2_STATS_NETIF_INC(ni, ifouterrors) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_SNMP_H */ diff --git a/middleware/lwip/src/include/lwip/sockets.h b/middleware/lwip/src/include/lwip/sockets.h new file mode 100644 index 0000000..54853f7 --- /dev/null +++ b/middleware/lwip/src/include/lwip/sockets.h @@ -0,0 +1,711 @@ +/** + * @file + * Socket API (to be used from non-TCPIP threads) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + + +#ifndef LWIP_HDR_SOCKETS_H +#define LWIP_HDR_SOCKETS_H + +#include "lwip/opt.h" + +#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ + +#if LWIP_SOCKET_EXTERNAL_HEADERS +#include LWIP_SOCKET_EXTERNAL_HEADER_SOCKETS_H +#else /* LWIP_SOCKET_EXTERNAL_HEADERS */ + +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/err.h" +#include "lwip/inet.h" +#include "lwip/errno.h" + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* sockaddr and pals include length fields */ +#define LWIP_SOCKET_HAVE_SA_LEN 1 + +/* If your port already typedef's sa_family_t, define SA_FAMILY_T_DEFINED + to prevent this code from redefining it. */ +#if !defined(sa_family_t) && !defined(SA_FAMILY_T_DEFINED) +typedef u8_t sa_family_t; +#endif +/* If your port already typedef's in_port_t, define IN_PORT_T_DEFINED + to prevent this code from redefining it. */ +#if !defined(in_port_t) && !defined(IN_PORT_T_DEFINED) +typedef u16_t in_port_t; +#endif + +#if LWIP_IPV4 +/* members are in network byte order */ +struct sockaddr_in { + u8_t sin_len; + sa_family_t sin_family; + in_port_t sin_port; + struct in_addr sin_addr; +#define SIN_ZERO_LEN 8 + char sin_zero[SIN_ZERO_LEN]; +}; +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 +struct sockaddr_in6 { + u8_t sin6_len; /* length of this structure */ + sa_family_t sin6_family; /* AF_INET6 */ + in_port_t sin6_port; /* Transport layer port # */ + u32_t sin6_flowinfo; /* IPv6 flow information */ + struct in6_addr sin6_addr; /* IPv6 address */ + u32_t sin6_scope_id; /* Set of interfaces for scope */ +}; +#endif /* LWIP_IPV6 */ + +struct sockaddr { + u8_t sa_len; + sa_family_t sa_family; + char sa_data[14]; +}; + +struct sockaddr_storage { + u8_t s2_len; + sa_family_t ss_family; + char s2_data1[2]; + u32_t s2_data2[3]; +#if LWIP_IPV6 + u32_t s2_data3[3]; +#endif /* LWIP_IPV6 */ +}; + +/* If your port already typedef's socklen_t, define SOCKLEN_T_DEFINED + to prevent this code from redefining it. */ +#if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED) +typedef u32_t socklen_t; +#endif + +#if !defined IOV_MAX +#define IOV_MAX 0xFFFF +#elif IOV_MAX > 0xFFFF +#error "IOV_MAX larger than supported by LwIP" +#endif /* IOV_MAX */ + +#if !defined(iovec) +struct iovec { + void *iov_base; + size_t iov_len; +}; +#endif + +typedef int msg_iovlen_t; + +struct msghdr { + void *msg_name; + socklen_t msg_namelen; + struct iovec *msg_iov; + msg_iovlen_t msg_iovlen; + void *msg_control; + socklen_t msg_controllen; + int msg_flags; +}; + +/* struct msghdr->msg_flags bit field values */ +#define MSG_TRUNC 0x04 +#define MSG_CTRUNC 0x08 + +/* RFC 3542, Section 20: Ancillary Data */ +struct cmsghdr { + socklen_t cmsg_len; /* number of bytes, including header */ + int cmsg_level; /* originating protocol */ + int cmsg_type; /* protocol-specific type */ +}; +/* Data section follows header and possible padding, typically referred to as + unsigned char cmsg_data[]; */ + +/* cmsg header/data alignment. NOTE: we align to native word size (double word +size on 16-bit arch) so structures are not placed at an unaligned address. +16-bit arch needs double word to ensure 32-bit alignment because socklen_t +could be 32 bits. If we ever have cmsg data with a 64-bit variable, alignment +will need to increase long long */ +#define ALIGN_H(size) (((size) + sizeof(long) - 1U) & ~(sizeof(long)-1U)) +#define ALIGN_D(size) ALIGN_H(size) + +#define CMSG_FIRSTHDR(mhdr) \ + ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ + (struct cmsghdr *)(mhdr)->msg_control : \ + (struct cmsghdr *)NULL) + +#define CMSG_NXTHDR(mhdr, cmsg) \ + (((cmsg) == NULL) ? CMSG_FIRSTHDR(mhdr) : \ + (((u8_t *)(cmsg) + ALIGN_H((cmsg)->cmsg_len) \ + + ALIGN_D(sizeof(struct cmsghdr)) > \ + (u8_t *)((mhdr)->msg_control) + (mhdr)->msg_controllen) ? \ + (struct cmsghdr *)NULL : \ + (struct cmsghdr *)((void*)((u8_t *)(cmsg) + \ + ALIGN_H((cmsg)->cmsg_len))))) + +#define CMSG_DATA(cmsg) ((void*)((u8_t *)(cmsg) + \ + ALIGN_D(sizeof(struct cmsghdr)))) + +#define CMSG_SPACE(length) (ALIGN_D(sizeof(struct cmsghdr)) + \ + ALIGN_H(length)) + +#define CMSG_LEN(length) (ALIGN_D(sizeof(struct cmsghdr)) + \ + length) + +/* Set socket options argument */ +#define IFNAMSIZ NETIF_NAMESIZE +struct ifreq { + char ifr_name[IFNAMSIZ]; /* Interface name */ +}; + +/* Socket protocol types (TCP/UDP/RAW) */ +#define SOCK_STREAM 1 +#define SOCK_DGRAM 2 +#define SOCK_RAW 3 + +/* + * Option flags per-socket. These must match the SOF_ flags in ip.h (checked in init.c) + */ +#define SO_REUSEADDR 0x0004 /* Allow local address reuse */ +#define SO_KEEPALIVE 0x0008 /* keep connections alive */ +#define SO_BROADCAST 0x0020 /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */ + + +/* + * Additional options, not kept in so_options. + */ +#define SO_DEBUG 0x0001 /* Unimplemented: turn on debugging info recording */ +#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ +#define SO_DONTROUTE 0x0010 /* Unimplemented: just use interface addresses */ +#define SO_USELOOPBACK 0x0040 /* Unimplemented: bypass hardware when possible */ +#define SO_LINGER 0x0080 /* linger on close if data present */ +#define SO_DONTLINGER ((int)(~SO_LINGER)) +#define SO_OOBINLINE 0x0100 /* Unimplemented: leave received OOB data in line */ +#define SO_REUSEPORT 0x0200 /* Unimplemented: allow local address & port reuse */ +#define SO_SNDBUF 0x1001 /* Unimplemented: send buffer size */ +#define SO_RCVBUF 0x1002 /* receive buffer size */ +#define SO_SNDLOWAT 0x1003 /* Unimplemented: send low-water mark */ +#define SO_RCVLOWAT 0x1004 /* Unimplemented: receive low-water mark */ +#define SO_SNDTIMEO 0x1005 /* send timeout */ +#define SO_RCVTIMEO 0x1006 /* receive timeout */ +#define SO_ERROR 0x1007 /* get error status and clear */ +#define SO_TYPE 0x1008 /* get socket type */ +#define SO_CONTIMEO 0x1009 /* Unimplemented: connect timeout */ +#define SO_NO_CHECK 0x100a /* don't create UDP checksum */ +#define SO_BINDTODEVICE 0x100b /* bind to device */ + +/* + * Structure used for manipulating linger option. + */ +struct linger { + int l_onoff; /* option on/off */ + int l_linger; /* linger time in seconds */ +}; + +/* + * Level number for (get/set)sockopt() to apply to socket itself. + */ +#define SOL_SOCKET 0xfff /* options for socket level */ + + +#define AF_UNSPEC 0 +#define AF_INET 2 +#if LWIP_IPV6 +#define AF_INET6 10 +#else /* LWIP_IPV6 */ +#define AF_INET6 AF_UNSPEC +#endif /* LWIP_IPV6 */ +#define PF_INET AF_INET +#define PF_INET6 AF_INET6 +#define PF_UNSPEC AF_UNSPEC + +#define IPPROTO_IP 0 +#define IPPROTO_ICMP 1 +#define IPPROTO_TCP 6 +#define IPPROTO_UDP 17 +#if LWIP_IPV6 +#define IPPROTO_IPV6 41 +#define IPPROTO_ICMPV6 58 +#endif /* LWIP_IPV6 */ +#define IPPROTO_UDPLITE 136 +#define IPPROTO_RAW 255 + +/* Flags we can use with send and recv. */ +#define MSG_PEEK 0x01 /* Peeks at an incoming message */ +#define MSG_WAITALL 0x02 /* Unimplemented: Requests that the function block until the full amount of data requested can be returned */ +#define MSG_OOB 0x04 /* Unimplemented: Requests out-of-band data. The significance and semantics of out-of-band data are protocol-specific */ +#define MSG_DONTWAIT 0x08 /* Nonblocking i/o for this operation only */ +#define MSG_MORE 0x10 /* Sender will send more */ +#define MSG_NOSIGNAL 0x20 /* Uninmplemented: Requests not to send the SIGPIPE signal if an attempt to send is made on a stream-oriented socket that is no longer connected. */ + + +/* + * Options for level IPPROTO_IP + */ +#define IP_TOS 1 +#define IP_TTL 2 +#define IP_PKTINFO 8 + +#if LWIP_TCP +/* + * Options for level IPPROTO_TCP + */ +#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */ +#define TCP_KEEPALIVE 0x02 /* send KEEPALIVE probes when idle for pcb->keep_idle milliseconds */ +#define TCP_KEEPIDLE 0x03 /* set pcb->keep_idle - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */ +#define TCP_KEEPINTVL 0x04 /* set pcb->keep_intvl - Use seconds for get/setsockopt */ +#define TCP_KEEPCNT 0x05 /* set pcb->keep_cnt - Use number of probes sent for get/setsockopt */ +#define TCP_USER_TIMEOUT 0x12 /* set pcb->user_timeout - How long for loss retry before timeout */ +#endif /* LWIP_TCP */ + +#if LWIP_IPV6 +/* + * Options for level IPPROTO_IPV6 + */ +#define IPV6_CHECKSUM 7 /* RFC3542: calculate and insert the ICMPv6 checksum for raw sockets. */ +#define IPV6_V6ONLY 27 /* RFC3493: boolean control to restrict AF_INET6 sockets to IPv6 communications only. */ +#endif /* LWIP_IPV6 */ + +#if LWIP_UDP && LWIP_UDPLITE +/* + * Options for level IPPROTO_UDPLITE + */ +#define UDPLITE_SEND_CSCOV 0x01 /* sender checksum coverage */ +#define UDPLITE_RECV_CSCOV 0x02 /* minimal receiver checksum coverage */ +#endif /* LWIP_UDP && LWIP_UDPLITE*/ + + +#if LWIP_MULTICAST_TX_OPTIONS +/* + * Options and types for UDP multicast traffic handling + */ +#define IP_MULTICAST_TTL 5 +#define IP_MULTICAST_IF 6 +#define IP_MULTICAST_LOOP 7 +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + +#if LWIP_IGMP +/* + * Options and types related to multicast membership + */ +#define IP_ADD_MEMBERSHIP 3 +#define IP_DROP_MEMBERSHIP 4 + +typedef struct ip_mreq { + struct in_addr imr_multiaddr; /* IP multicast address of group */ + struct in_addr imr_interface; /* local IP address of interface */ +} ip_mreq; +#endif /* LWIP_IGMP */ + +#if LWIP_IPV4 +struct in_pktinfo { + unsigned int ipi_ifindex; /* Interface index */ + struct in_addr ipi_addr; /* Destination (from header) address */ +}; +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6_MLD +/* + * Options and types related to IPv6 multicast membership + */ +#define IPV6_JOIN_GROUP 12 +#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP +#define IPV6_LEAVE_GROUP 13 +#define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP + +typedef struct ipv6_mreq { + struct in6_addr ipv6mr_multiaddr; /* IPv6 multicast addr */ + unsigned int ipv6mr_interface; /* interface index, or 0 */ +} ipv6_mreq; +#endif /* LWIP_IPV6_MLD */ + +/* + * The Type of Service provides an indication of the abstract + * parameters of the quality of service desired. These parameters are + * to be used to guide the selection of the actual service parameters + * when transmitting a datagram through a particular network. Several + * networks offer service precedence, which somehow treats high + * precedence traffic as more important than other traffic (generally + * by accepting only traffic above a certain precedence at time of high + * load). The major choice is a three way tradeoff between low-delay, + * high-reliability, and high-throughput. + * The use of the Delay, Throughput, and Reliability indications may + * increase the cost (in some sense) of the service. In many networks + * better performance for one of these parameters is coupled with worse + * performance on another. Except for very unusual cases at most two + * of these three indications should be set. + */ +#define IPTOS_TOS_MASK 0x1E +#define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK) +#define IPTOS_LOWDELAY 0x10 +#define IPTOS_THROUGHPUT 0x08 +#define IPTOS_RELIABILITY 0x04 +#define IPTOS_LOWCOST 0x02 +#define IPTOS_MINCOST IPTOS_LOWCOST + +/* + * The Network Control precedence designation is intended to be used + * within a network only. The actual use and control of that + * designation is up to each network. The Internetwork Control + * designation is intended for use by gateway control originators only. + * If the actual use of these precedence designations is of concern to + * a particular network, it is the responsibility of that network to + * control the access to, and use of, those precedence designations. + */ +#define IPTOS_PREC_MASK 0xe0 +#define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK) +#define IPTOS_PREC_NETCONTROL 0xe0 +#define IPTOS_PREC_INTERNETCONTROL 0xc0 +#define IPTOS_PREC_CRITIC_ECP 0xa0 +#define IPTOS_PREC_FLASHOVERRIDE 0x80 +#define IPTOS_PREC_FLASH 0x60 +#define IPTOS_PREC_IMMEDIATE 0x40 +#define IPTOS_PREC_PRIORITY 0x20 +#define IPTOS_PREC_ROUTINE 0x00 + + +/* + * Commands for ioctlsocket(), taken from the BSD file fcntl.h. + * lwip_ioctl only supports FIONREAD and FIONBIO, for now + * + * Ioctl's have the command encoded in the lower word, + * and the size of any in or out parameters in the upper + * word. The high 2 bits of the upper word are used + * to encode the in/out status of the parameter; for now + * we restrict parameters to at most 128 bytes. + */ +#if !defined(FIONREAD) || !defined(FIONBIO) +#define IOCPARM_MASK 0x7fUL /* parameters must be < 128 bytes */ +#define IOC_VOID 0x20000000UL /* no parameters */ +#define IOC_OUT 0x40000000UL /* copy out parameters */ +#define IOC_IN 0x80000000UL /* copy in parameters */ +#define IOC_INOUT (IOC_IN|IOC_OUT) + /* 0x20000000 distinguishes new & + old ioctl's */ +#define _IO(x,y) ((long)(IOC_VOID|((x)<<8)|(y))) + +#define _IOR(x,y,t) ((long)(IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))) + +#define _IOW(x,y,t) ((long)(IOC_IN|((sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))) +#endif /* !defined(FIONREAD) || !defined(FIONBIO) */ + +/* Get (not sent + not acked) data bytes in send buffer. */ +#define SIOCOUTQ _IOR('s', 115, unsigned long) + +#ifndef FIONREAD +#define FIONREAD _IOR('f', 127, unsigned long) /* get # bytes to read */ +#endif +#ifndef FIONBIO +#define FIONBIO _IOW('f', 126, unsigned long) /* set/clear non-blocking i/o */ +#endif + +/* Socket I/O Controls: unimplemented */ +#ifndef SIOCSHIWAT +#define SIOCSHIWAT _IOW('s', 0, unsigned long) /* set high watermark */ +#define SIOCGHIWAT _IOR('s', 1, unsigned long) /* get high watermark */ +#define SIOCSLOWAT _IOW('s', 2, unsigned long) /* set low watermark */ +#define SIOCGLOWAT _IOR('s', 3, unsigned long) /* get low watermark */ +#define SIOCATMARK _IOR('s', 7, unsigned long) /* at oob mark? */ +#endif + +/* commands for fnctl */ +#ifndef F_GETFL +#define F_GETFL 3 +#endif +#ifndef F_SETFL +#define F_SETFL 4 +#endif + +/* File status flags and file access modes for fnctl, + these are bits in an int. */ +#ifndef O_NONBLOCK +#define O_NONBLOCK 1 /* nonblocking I/O */ +#endif +#ifndef O_NDELAY +#define O_NDELAY O_NONBLOCK /* same as O_NONBLOCK, for compatibility */ +#endif +#ifndef O_RDONLY +#define O_RDONLY 2 +#endif +#ifndef O_WRONLY +#define O_WRONLY 4 +#endif +#ifndef O_RDWR +#define O_RDWR (O_RDONLY|O_WRONLY) +#endif + +#ifndef SHUT_RD + #define SHUT_RD 0 + #define SHUT_WR 1 + #define SHUT_RDWR 2 +#endif + +/* FD_SET used for lwip_select */ +#ifndef FD_SET +#undef FD_SETSIZE +/* Make FD_SETSIZE match NUM_SOCKETS in socket.c */ +#define FD_SETSIZE MEMP_NUM_NETCONN +#define LWIP_SELECT_MAXNFDS (FD_SETSIZE + LWIP_SOCKET_OFFSET) +#define FDSETSAFESET(n, code) do { \ + if (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0)) { \ + code; }} while(0) +#define FDSETSAFEGET(n, code) (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0) ?\ + (code) : 0) +#define FD_SET(n, p) FDSETSAFESET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] | (1 << (((n)-LWIP_SOCKET_OFFSET) & 7)))) +#define FD_CLR(n, p) FDSETSAFESET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] & ~(1 << (((n)-LWIP_SOCKET_OFFSET) & 7)))) +#define FD_ISSET(n,p) FDSETSAFEGET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] & (1 << (((n)-LWIP_SOCKET_OFFSET) & 7))) +#define FD_ZERO(p) memset((void*)(p), 0, sizeof(*(p))) + +typedef struct fd_set +{ + unsigned char fd_bits [(FD_SETSIZE+7)/8]; +} fd_set; + +#elif FD_SETSIZE < (LWIP_SOCKET_OFFSET + MEMP_NUM_NETCONN) +#error "external FD_SETSIZE too small for number of sockets" +#else +#define LWIP_SELECT_MAXNFDS FD_SETSIZE +#endif /* FD_SET */ + +/* poll-related defines and types */ +/* @todo: find a better way to guard the definition of these defines and types if already defined */ +#if !defined(POLLIN) && !defined(POLLOUT) +#define POLLIN 0x1 +#define POLLOUT 0x2 +#define POLLERR 0x4 +#define POLLNVAL 0x8 +/* Below values are unimplemented */ +#define POLLRDNORM 0x10 +#define POLLRDBAND 0x20 +#define POLLPRI 0x40 +#define POLLWRNORM 0x80 +#define POLLWRBAND 0x100 +#define POLLHUP 0x200 +typedef unsigned int nfds_t; +struct pollfd +{ + int fd; + short events; + short revents; +}; +#endif + +/** LWIP_TIMEVAL_PRIVATE: if you want to use the struct timeval provided + * by your system, set this to 0 and include in cc.h */ +#ifndef LWIP_TIMEVAL_PRIVATE +#define LWIP_TIMEVAL_PRIVATE 1 +#endif + +#if LWIP_TIMEVAL_PRIVATE +struct timeval { + long tv_sec; /* seconds */ + long tv_usec; /* and microseconds */ +}; +#endif /* LWIP_TIMEVAL_PRIVATE */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_SOCKET_EXTERNAL_HEADERS */ + +#ifdef __cplusplus +extern "C" { +#endif + +#define lwip_socket_init() /* Compatibility define, no init needed. */ +void lwip_socket_thread_init(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: initialize thread-local semaphore */ +void lwip_socket_thread_cleanup(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: destroy thread-local semaphore */ + +#if LWIP_COMPAT_SOCKETS == 2 +/* This helps code parsers/code completion by not having the COMPAT functions as defines */ +#define lwip_accept accept +#define lwip_bind bind +#define lwip_shutdown shutdown +#define lwip_getpeername getpeername +#define lwip_getsockname getsockname +#define lwip_setsockopt setsockopt +#define lwip_getsockopt getsockopt +#define lwip_close closesocket +#define lwip_connect connect +#define lwip_listen listen +#define lwip_recv recv +#define lwip_recvmsg recvmsg +#define lwip_recvfrom recvfrom +#define lwip_send send +#define lwip_sendmsg sendmsg +#define lwip_sendto sendto +#define lwip_socket socket +#if LWIP_SOCKET_SELECT +#define lwip_select select +#endif +#if LWIP_SOCKET_POLL +#define lwip_poll poll +#endif +#define lwip_ioctl ioctlsocket +#define lwip_inet_ntop inet_ntop +#define lwip_inet_pton inet_pton + +#if LWIP_POSIX_SOCKETS_IO_NAMES +#define lwip_read read +#define lwip_readv readv +#define lwip_write write +#define lwip_writev writev +#undef lwip_close +#define lwip_close close +#define closesocket(s) close(s) +int fcntl(int s, int cmd, ...); +#undef lwip_ioctl +#define lwip_ioctl ioctl +#define ioctlsocket ioctl +#endif /* LWIP_POSIX_SOCKETS_IO_NAMES */ +#endif /* LWIP_COMPAT_SOCKETS == 2 */ + +int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen); +int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen); +int lwip_shutdown(int s, int how); +int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen); +int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen); +int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen); +int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen); + int lwip_close(int s); +int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen); +int lwip_listen(int s, int backlog); +ssize_t lwip_recv(int s, void *mem, size_t len, int flags); +ssize_t lwip_read(int s, void *mem, size_t len); +ssize_t lwip_readv(int s, const struct iovec *iov, int iovcnt); +ssize_t lwip_recvfrom(int s, void *mem, size_t len, int flags, + struct sockaddr *from, socklen_t *fromlen); +ssize_t lwip_recvmsg(int s, struct msghdr *message, int flags); +ssize_t lwip_send(int s, const void *dataptr, size_t size, int flags); +ssize_t lwip_sendmsg(int s, const struct msghdr *message, int flags); +ssize_t lwip_sendto(int s, const void *dataptr, size_t size, int flags, + const struct sockaddr *to, socklen_t tolen); +int lwip_socket(int domain, int type, int protocol); +ssize_t lwip_write(int s, const void *dataptr, size_t size); +ssize_t lwip_writev(int s, const struct iovec *iov, int iovcnt); +#if LWIP_SOCKET_SELECT +int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset, + struct timeval *timeout); +#endif +#if LWIP_SOCKET_POLL +int lwip_poll(struct pollfd *fds, nfds_t nfds, int timeout); +#endif +int lwip_ioctl(int s, long cmd, void *argp); +int lwip_fcntl(int s, int cmd, int val); +const char *lwip_inet_ntop(int af, const void *src, char *dst, socklen_t size); +int lwip_inet_pton(int af, const char *src, void *dst); + +#if LWIP_COMPAT_SOCKETS +#if LWIP_COMPAT_SOCKETS != 2 +/** @ingroup socket */ +#define accept(s,addr,addrlen) lwip_accept(s,addr,addrlen) +/** @ingroup socket */ +#define bind(s,name,namelen) lwip_bind(s,name,namelen) +/** @ingroup socket */ +#define shutdown(s,how) lwip_shutdown(s,how) +/** @ingroup socket */ +#define getpeername(s,name,namelen) lwip_getpeername(s,name,namelen) +/** @ingroup socket */ +#define getsockname(s,name,namelen) lwip_getsockname(s,name,namelen) +/** @ingroup socket */ +#define setsockopt(s,level,optname,opval,optlen) lwip_setsockopt(s,level,optname,opval,optlen) +/** @ingroup socket */ +#define getsockopt(s,level,optname,opval,optlen) lwip_getsockopt(s,level,optname,opval,optlen) +/** @ingroup socket */ +#define closesocket(s) lwip_close(s) +/** @ingroup socket */ +#define connect(s,name,namelen) lwip_connect(s,name,namelen) +/** @ingroup socket */ +#define listen(s,backlog) lwip_listen(s,backlog) +/** @ingroup socket */ +#define recv(s,mem,len,flags) lwip_recv(s,mem,len,flags) +/** @ingroup socket */ +#define recvmsg(s,message,flags) lwip_recvmsg(s,message,flags) +/** @ingroup socket */ +#define recvfrom(s,mem,len,flags,from,fromlen) lwip_recvfrom(s,mem,len,flags,from,fromlen) +/** @ingroup socket */ +#define send(s,dataptr,size,flags) lwip_send(s,dataptr,size,flags) +/** @ingroup socket */ +#define sendmsg(s,message,flags) lwip_sendmsg(s,message,flags) +/** @ingroup socket */ +#define sendto(s,dataptr,size,flags,to,tolen) lwip_sendto(s,dataptr,size,flags,to,tolen) +/** @ingroup socket */ +#define socket(domain,type,protocol) lwip_socket(domain,type,protocol) +#if LWIP_SOCKET_SELECT +/** @ingroup socket */ +#define select(maxfdp1,readset,writeset,exceptset,timeout) lwip_select(maxfdp1,readset,writeset,exceptset,timeout) +#endif +#if LWIP_SOCKET_POLL +/** @ingroup socket */ +#define poll(fds,nfds,timeout) lwip_poll(fds,nfds,timeout) +#endif +/** @ingroup socket */ +#define ioctlsocket(s,cmd,argp) lwip_ioctl(s,cmd,argp) +/** @ingroup socket */ +#define inet_ntop(af,src,dst,size) lwip_inet_ntop(af,src,dst,size) +/** @ingroup socket */ +#define inet_pton(af,src,dst) lwip_inet_pton(af,src,dst) + +#if LWIP_POSIX_SOCKETS_IO_NAMES +/** @ingroup socket */ +#define read(s,mem,len) lwip_read(s,mem,len) +/** @ingroup socket */ +#define readv(s,iov,iovcnt) lwip_readv(s,iov,iovcnt) +/** @ingroup socket */ +#define write(s,dataptr,len) lwip_write(s,dataptr,len) +/** @ingroup socket */ +#define writev(s,iov,iovcnt) lwip_writev(s,iov,iovcnt) +/** @ingroup socket */ +#define close(s) lwip_close(s) +/** @ingroup socket */ +#define fcntl(s,cmd,val) lwip_fcntl(s,cmd,val) +/** @ingroup socket */ +#define ioctl(s,cmd,argp) lwip_ioctl(s,cmd,argp) +#endif /* LWIP_POSIX_SOCKETS_IO_NAMES */ +#endif /* LWIP_COMPAT_SOCKETS != 2 */ + +#endif /* LWIP_COMPAT_SOCKETS */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_SOCKET */ + +#endif /* LWIP_HDR_SOCKETS_H */ diff --git a/middleware/lwip/src/include/lwip/stats.h b/middleware/lwip/src/include/lwip/stats.h new file mode 100644 index 0000000..b570dba --- /dev/null +++ b/middleware/lwip/src/include/lwip/stats.h @@ -0,0 +1,491 @@ +/** + * @file + * Statistics API (to be used from TCPIP thread) + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_STATS_H +#define LWIP_HDR_STATS_H + +#include "lwip/opt.h" + +#include "lwip/mem.h" +#include "lwip/memp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_STATS + +#ifndef LWIP_STATS_LARGE +#define LWIP_STATS_LARGE 0 +#endif + +#if LWIP_STATS_LARGE +#define STAT_COUNTER u32_t +#define STAT_COUNTER_F U32_F +#else +#define STAT_COUNTER u16_t +#define STAT_COUNTER_F U16_F +#endif + +/** Protocol related stats */ +struct stats_proto { + STAT_COUNTER xmit; /* Transmitted packets. */ + STAT_COUNTER recv; /* Received packets. */ + STAT_COUNTER fw; /* Forwarded packets. */ + STAT_COUNTER drop; /* Dropped packets. */ + STAT_COUNTER chkerr; /* Checksum error. */ + STAT_COUNTER lenerr; /* Invalid length error. */ + STAT_COUNTER memerr; /* Out of memory error. */ + STAT_COUNTER rterr; /* Routing error. */ + STAT_COUNTER proterr; /* Protocol error. */ + STAT_COUNTER opterr; /* Error in options. */ + STAT_COUNTER err; /* Misc error. */ + STAT_COUNTER cachehit; +}; + +/** IGMP stats */ +struct stats_igmp { + STAT_COUNTER xmit; /* Transmitted packets. */ + STAT_COUNTER recv; /* Received packets. */ + STAT_COUNTER drop; /* Dropped packets. */ + STAT_COUNTER chkerr; /* Checksum error. */ + STAT_COUNTER lenerr; /* Invalid length error. */ + STAT_COUNTER memerr; /* Out of memory error. */ + STAT_COUNTER proterr; /* Protocol error. */ + STAT_COUNTER rx_v1; /* Received v1 frames. */ + STAT_COUNTER rx_group; /* Received group-specific queries. */ + STAT_COUNTER rx_general; /* Received general queries. */ + STAT_COUNTER rx_report; /* Received reports. */ + STAT_COUNTER tx_join; /* Sent joins. */ + STAT_COUNTER tx_leave; /* Sent leaves. */ + STAT_COUNTER tx_report; /* Sent reports. */ +}; + +/** Memory stats */ +struct stats_mem { +#if defined(LWIP_DEBUG) || LWIP_STATS_DISPLAY + const char *name; +#endif /* defined(LWIP_DEBUG) || LWIP_STATS_DISPLAY */ + STAT_COUNTER err; + mem_size_t avail; + mem_size_t used; + mem_size_t max; + STAT_COUNTER illegal; +}; + +/** System element stats */ +struct stats_syselem { + STAT_COUNTER used; + STAT_COUNTER max; + STAT_COUNTER err; +}; + +/** System stats */ +struct stats_sys { + struct stats_syselem sem; + struct stats_syselem mutex; + struct stats_syselem mbox; +}; + +/** SNMP MIB2 stats */ +struct stats_mib2 { + /* IP */ + u32_t ipinhdrerrors; + u32_t ipinaddrerrors; + u32_t ipinunknownprotos; + u32_t ipindiscards; + u32_t ipindelivers; + u32_t ipoutrequests; + u32_t ipoutdiscards; + u32_t ipoutnoroutes; + u32_t ipreasmoks; + u32_t ipreasmfails; + u32_t ipfragoks; + u32_t ipfragfails; + u32_t ipfragcreates; + u32_t ipreasmreqds; + u32_t ipforwdatagrams; + u32_t ipinreceives; + + /* TCP */ + u32_t tcpactiveopens; + u32_t tcppassiveopens; + u32_t tcpattemptfails; + u32_t tcpestabresets; + u32_t tcpoutsegs; + u32_t tcpretranssegs; + u32_t tcpinsegs; + u32_t tcpinerrs; + u32_t tcpoutrsts; + + /* UDP */ + u32_t udpindatagrams; + u32_t udpnoports; + u32_t udpinerrors; + u32_t udpoutdatagrams; + + /* ICMP */ + u32_t icmpinmsgs; + u32_t icmpinerrors; + u32_t icmpindestunreachs; + u32_t icmpintimeexcds; + u32_t icmpinparmprobs; + u32_t icmpinsrcquenchs; + u32_t icmpinredirects; + u32_t icmpinechos; + u32_t icmpinechoreps; + u32_t icmpintimestamps; + u32_t icmpintimestampreps; + u32_t icmpinaddrmasks; + u32_t icmpinaddrmaskreps; + u32_t icmpoutmsgs; + u32_t icmpouterrors; + u32_t icmpoutdestunreachs; + u32_t icmpouttimeexcds; + u32_t icmpoutechos; /* can be incremented by user application ('ping') */ + u32_t icmpoutechoreps; +}; + +/** + * @ingroup netif_mib2 + * SNMP MIB2 interface stats + */ +struct stats_mib2_netif_ctrs { + /** The total number of octets received on the interface, including framing characters */ + u32_t ifinoctets; + /** The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were + * not addressed to a multicast or broadcast address at this sub-layer */ + u32_t ifinucastpkts; + /** The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were + * addressed to a multicast or broadcast address at this sub-layer */ + u32_t ifinnucastpkts; + /** The number of inbound packets which were chosen to be discarded even though no errors had + * been detected to prevent their being deliverable to a higher-layer protocol. One possible + * reason for discarding such a packet could be to free up buffer space */ + u32_t ifindiscards; + /** For packet-oriented interfaces, the number of inbound packets that contained errors + * preventing them from being deliverable to a higher-layer protocol. For character- + * oriented or fixed-length interfaces, the number of inbound transmission units that + * contained errors preventing them from being deliverable to a higher-layer protocol. */ + u32_t ifinerrors; + /** For packet-oriented interfaces, the number of packets received via the interface which + * were discarded because of an unknown or unsupported protocol. For character-oriented + * or fixed-length interfaces that support protocol multiplexing the number of transmission + * units received via the interface which were discarded because of an unknown or unsupported + * protocol. For any interface that does not support protocol multiplexing, this counter will + * always be 0 */ + u32_t ifinunknownprotos; + /** The total number of octets transmitted out of the interface, including framing characters. */ + u32_t ifoutoctets; + /** The total number of packets that higher-level protocols requested be transmitted, and + * which were not addressed to a multicast or broadcast address at this sub-layer, including + * those that were discarded or not sent. */ + u32_t ifoutucastpkts; + /** The total number of packets that higher-level protocols requested be transmitted, and which + * were addressed to a multicast or broadcast address at this sub-layer, including + * those that were discarded or not sent. */ + u32_t ifoutnucastpkts; + /** The number of outbound packets which were chosen to be discarded even though no errors had + * been detected to prevent their being transmitted. One possible reason for discarding + * such a packet could be to free up buffer space. */ + u32_t ifoutdiscards; + /** For packet-oriented interfaces, the number of outbound packets that could not be transmitted + * because of errors. For character-oriented or fixed-length interfaces, the number of outbound + * transmission units that could not be transmitted because of errors. */ + u32_t ifouterrors; +}; + +/** lwIP stats container */ +struct stats_ { +#if LINK_STATS + /** Link level */ + struct stats_proto link; +#endif +#if ETHARP_STATS + /** ARP */ + struct stats_proto etharp; +#endif +#if IPFRAG_STATS + /** Fragmentation */ + struct stats_proto ip_frag; +#endif +#if IP_STATS + /** IP */ + struct stats_proto ip; +#endif +#if ICMP_STATS + /** ICMP */ + struct stats_proto icmp; +#endif +#if IGMP_STATS + /** IGMP */ + struct stats_igmp igmp; +#endif +#if UDP_STATS + /** UDP */ + struct stats_proto udp; +#endif +#if TCP_STATS + /** TCP */ + struct stats_proto tcp; +#endif +#if MEM_STATS + /** Heap */ + struct stats_mem mem; +#endif +#if MEMP_STATS + /** Internal memory pools */ + struct stats_mem *memp[MEMP_MAX]; +#endif +#if SYS_STATS + /** System */ + struct stats_sys sys; +#endif +#if IP6_STATS + /** IPv6 */ + struct stats_proto ip6; +#endif +#if ICMP6_STATS + /** ICMP6 */ + struct stats_proto icmp6; +#endif +#if IP6_FRAG_STATS + /** IPv6 fragmentation */ + struct stats_proto ip6_frag; +#endif +#if MLD6_STATS + /** Multicast listener discovery */ + struct stats_igmp mld6; +#endif +#if ND6_STATS + /** Neighbor discovery */ + struct stats_proto nd6; +#endif +#if MIB2_STATS + /** SNMP MIB2 */ + struct stats_mib2 mib2; +#endif +}; + +/** Global variable containing lwIP internal statistics. Add this to your debugger's watchlist. */ +extern struct stats_ lwip_stats; + +/** Init statistics */ +void stats_init(void); + +#define STATS_INC(x) ++lwip_stats.x +#define STATS_DEC(x) --lwip_stats.x +#define STATS_INC_USED(x, y, type) do { lwip_stats.x.used = (type)(lwip_stats.x.used + y); \ + if (lwip_stats.x.max < lwip_stats.x.used) { \ + lwip_stats.x.max = lwip_stats.x.used; \ + } \ + } while(0) +#define STATS_GET(x) lwip_stats.x +#else /* LWIP_STATS */ +#define stats_init() +#define STATS_INC(x) +#define STATS_DEC(x) +#define STATS_INC_USED(x, y, type) +#endif /* LWIP_STATS */ + +#if TCP_STATS +#define TCP_STATS_INC(x) STATS_INC(x) +#define TCP_STATS_DISPLAY() stats_display_proto(&lwip_stats.tcp, "TCP") +#else +#define TCP_STATS_INC(x) +#define TCP_STATS_DISPLAY() +#endif + +#if UDP_STATS +#define UDP_STATS_INC(x) STATS_INC(x) +#define UDP_STATS_DISPLAY() stats_display_proto(&lwip_stats.udp, "UDP") +#else +#define UDP_STATS_INC(x) +#define UDP_STATS_DISPLAY() +#endif + +#if ICMP_STATS +#define ICMP_STATS_INC(x) STATS_INC(x) +#define ICMP_STATS_DISPLAY() stats_display_proto(&lwip_stats.icmp, "ICMP") +#else +#define ICMP_STATS_INC(x) +#define ICMP_STATS_DISPLAY() +#endif + +#if IGMP_STATS +#define IGMP_STATS_INC(x) STATS_INC(x) +#define IGMP_STATS_DISPLAY() stats_display_igmp(&lwip_stats.igmp, "IGMP") +#else +#define IGMP_STATS_INC(x) +#define IGMP_STATS_DISPLAY() +#endif + +#if IP_STATS +#define IP_STATS_INC(x) STATS_INC(x) +#define IP_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip, "IP") +#else +#define IP_STATS_INC(x) +#define IP_STATS_DISPLAY() +#endif + +#if IPFRAG_STATS +#define IPFRAG_STATS_INC(x) STATS_INC(x) +#define IPFRAG_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip_frag, "IP_FRAG") +#else +#define IPFRAG_STATS_INC(x) +#define IPFRAG_STATS_DISPLAY() +#endif + +#if ETHARP_STATS +#define ETHARP_STATS_INC(x) STATS_INC(x) +#define ETHARP_STATS_DISPLAY() stats_display_proto(&lwip_stats.etharp, "ETHARP") +#else +#define ETHARP_STATS_INC(x) +#define ETHARP_STATS_DISPLAY() +#endif + +#if LINK_STATS +#define LINK_STATS_INC(x) STATS_INC(x) +#define LINK_STATS_DISPLAY() stats_display_proto(&lwip_stats.link, "LINK") +#else +#define LINK_STATS_INC(x) +#define LINK_STATS_DISPLAY() +#endif + +#if MEM_STATS +#define MEM_STATS_AVAIL(x, y) lwip_stats.mem.x = y +#define MEM_STATS_INC(x) STATS_INC(mem.x) +#define MEM_STATS_INC_USED(x, y) STATS_INC_USED(mem, y, mem_size_t) +#define MEM_STATS_DEC_USED(x, y) lwip_stats.mem.x = (mem_size_t)((lwip_stats.mem.x) - (y)) +#define MEM_STATS_DISPLAY() stats_display_mem(&lwip_stats.mem, "HEAP") +#else +#define MEM_STATS_AVAIL(x, y) +#define MEM_STATS_INC(x) +#define MEM_STATS_INC_USED(x, y) +#define MEM_STATS_DEC_USED(x, y) +#define MEM_STATS_DISPLAY() +#endif + + #if MEMP_STATS +#define MEMP_STATS_DEC(x, i) STATS_DEC(memp[i]->x) +#define MEMP_STATS_DISPLAY(i) stats_display_memp(lwip_stats.memp[i], i) +#define MEMP_STATS_GET(x, i) STATS_GET(memp[i]->x) + #else +#define MEMP_STATS_DEC(x, i) +#define MEMP_STATS_DISPLAY(i) +#define MEMP_STATS_GET(x, i) 0 +#endif + +#if SYS_STATS +#define SYS_STATS_INC(x) STATS_INC(sys.x) +#define SYS_STATS_DEC(x) STATS_DEC(sys.x) +#define SYS_STATS_INC_USED(x) STATS_INC_USED(sys.x, 1, STAT_COUNTER) +#define SYS_STATS_DISPLAY() stats_display_sys(&lwip_stats.sys) +#else +#define SYS_STATS_INC(x) +#define SYS_STATS_DEC(x) +#define SYS_STATS_INC_USED(x) +#define SYS_STATS_DISPLAY() +#endif + +#if IP6_STATS +#define IP6_STATS_INC(x) STATS_INC(x) +#define IP6_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip6, "IPv6") +#else +#define IP6_STATS_INC(x) +#define IP6_STATS_DISPLAY() +#endif + +#if ICMP6_STATS +#define ICMP6_STATS_INC(x) STATS_INC(x) +#define ICMP6_STATS_DISPLAY() stats_display_proto(&lwip_stats.icmp6, "ICMPv6") +#else +#define ICMP6_STATS_INC(x) +#define ICMP6_STATS_DISPLAY() +#endif + +#if IP6_FRAG_STATS +#define IP6_FRAG_STATS_INC(x) STATS_INC(x) +#define IP6_FRAG_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip6_frag, "IPv6 FRAG") +#else +#define IP6_FRAG_STATS_INC(x) +#define IP6_FRAG_STATS_DISPLAY() +#endif + +#if MLD6_STATS +#define MLD6_STATS_INC(x) STATS_INC(x) +#define MLD6_STATS_DISPLAY() stats_display_igmp(&lwip_stats.mld6, "MLDv1") +#else +#define MLD6_STATS_INC(x) +#define MLD6_STATS_DISPLAY() +#endif + +#if ND6_STATS +#define ND6_STATS_INC(x) STATS_INC(x) +#define ND6_STATS_DISPLAY() stats_display_proto(&lwip_stats.nd6, "ND") +#else +#define ND6_STATS_INC(x) +#define ND6_STATS_DISPLAY() +#endif + +#if MIB2_STATS +#define MIB2_STATS_INC(x) STATS_INC(x) +#else +#define MIB2_STATS_INC(x) +#endif + +/* Display of statistics */ +#if LWIP_STATS_DISPLAY +void stats_display(void); +void stats_display_proto(struct stats_proto *proto, const char *name); +void stats_display_igmp(struct stats_igmp *igmp, const char *name); +void stats_display_mem(struct stats_mem *mem, const char *name); +void stats_display_memp(struct stats_mem *mem, int index); +void stats_display_sys(struct stats_sys *sys); +#else /* LWIP_STATS_DISPLAY */ +#define stats_display() +#define stats_display_proto(proto, name) +#define stats_display_igmp(igmp, name) +#define stats_display_mem(mem, name) +#define stats_display_memp(mem, index) +#define stats_display_sys(sys) +#endif /* LWIP_STATS_DISPLAY */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_STATS_H */ diff --git a/middleware/lwip/src/include/lwip/sys.h b/middleware/lwip/src/include/lwip/sys.h new file mode 100644 index 0000000..4bfdb13 --- /dev/null +++ b/middleware/lwip/src/include/lwip/sys.h @@ -0,0 +1,575 @@ +/** + * @file + * OS abstraction layer + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + */ + +#ifndef LWIP_HDR_SYS_H +#define LWIP_HDR_SYS_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if NO_SYS + +/* For a totally minimal and standalone system, we provide null + definitions of the sys_ functions. */ +typedef u8_t sys_sem_t; +typedef u8_t sys_mutex_t; +typedef u8_t sys_mbox_t; + +#define sys_sem_new(s, c) ERR_OK +#define sys_sem_signal(s) +#define sys_sem_wait(s) +#define sys_arch_sem_wait(s,t) +#define sys_sem_free(s) +#define sys_sem_valid(s) 0 +#define sys_sem_valid_val(s) 0 +#define sys_sem_set_invalid(s) +#define sys_sem_set_invalid_val(s) +#define sys_mutex_new(mu) ERR_OK +#define sys_mutex_lock(mu) +#define sys_mutex_unlock(mu) +#define sys_mutex_free(mu) +#define sys_mutex_valid(mu) 0 +#define sys_mutex_set_invalid(mu) +#define sys_mbox_new(m, s) ERR_OK +#define sys_mbox_fetch(m,d) +#define sys_mbox_tryfetch(m,d) +#define sys_mbox_post(m,d) +#define sys_mbox_trypost(m,d) +#define sys_mbox_free(m) +#define sys_mbox_valid(m) +#define sys_mbox_valid_val(m) +#define sys_mbox_set_invalid(m) +#define sys_mbox_set_invalid_val(m) + +#define sys_thread_new(n,t,a,s,p) + +#define sys_msleep(t) + +#else /* NO_SYS */ + +/** Return code for timeouts from sys_arch_mbox_fetch and sys_arch_sem_wait */ +#define SYS_ARCH_TIMEOUT 0xffffffffUL + +/** sys_mbox_tryfetch() returns SYS_MBOX_EMPTY if appropriate. + * For now we use the same magic value, but we allow this to change in future. + */ +#define SYS_MBOX_EMPTY SYS_ARCH_TIMEOUT + +#include "lwip/err.h" +#include "arch/sys_arch.h" + +/** Function prototype for thread functions */ +typedef void (*lwip_thread_fn)(void *arg); + +/* Function prototypes for functions to be implemented by platform ports + (in sys_arch.c) */ + +/* Mutex functions: */ + +/** Define LWIP_COMPAT_MUTEX if the port has no mutexes and binary semaphores + should be used instead */ +#ifndef LWIP_COMPAT_MUTEX +#define LWIP_COMPAT_MUTEX 0 +#endif + +#if LWIP_COMPAT_MUTEX +/* for old ports that don't have mutexes: define them to binary semaphores */ +#define sys_mutex_t sys_sem_t +#define sys_mutex_new(mutex) sys_sem_new(mutex, 1) +#define sys_mutex_lock(mutex) sys_sem_wait(mutex) +#define sys_mutex_unlock(mutex) sys_sem_signal(mutex) +#define sys_mutex_free(mutex) sys_sem_free(mutex) +#define sys_mutex_valid(mutex) sys_sem_valid(mutex) +#define sys_mutex_set_invalid(mutex) sys_sem_set_invalid(mutex) + +#else /* LWIP_COMPAT_MUTEX */ + +/** + * @ingroup sys_mutex + * Create a new mutex. + * Note that mutexes are expected to not be taken recursively by the lwIP code, + * so both implementation types (recursive or non-recursive) should work. + * The mutex is allocated to the memory that 'mutex' + * points to (which can be both a pointer or the actual OS structure). + * If the mutex has been created, ERR_OK should be returned. Returning any + * other error will provide a hint what went wrong, but except for assertions, + * no real error handling is implemented. + * + * @param mutex pointer to the mutex to create + * @return ERR_OK if successful, another err_t otherwise + */ +err_t sys_mutex_new(sys_mutex_t *mutex); +/** + * @ingroup sys_mutex + * Blocks the thread until the mutex can be grabbed. + * @param mutex the mutex to lock + */ +void sys_mutex_lock(sys_mutex_t *mutex); +/** + * @ingroup sys_mutex + * Releases the mutex previously locked through 'sys_mutex_lock()'. + * @param mutex the mutex to unlock + */ +void sys_mutex_unlock(sys_mutex_t *mutex); +/** + * @ingroup sys_mutex + * Deallocates a mutex. + * @param mutex the mutex to delete + */ +void sys_mutex_free(sys_mutex_t *mutex); +#ifndef sys_mutex_valid +/** + * @ingroup sys_mutex + * Returns 1 if the mutes is valid, 0 if it is not valid. + * When using pointers, a simple way is to check the pointer for != NULL. + * When directly using OS structures, implementing this may be more complex. + * This may also be a define, in which case the function is not prototyped. + */ +int sys_mutex_valid(sys_mutex_t *mutex); +#endif +#ifndef sys_mutex_set_invalid +/** + * @ingroup sys_mutex + * Invalidate a mutex so that sys_mutex_valid() returns 0. + * ATTENTION: This does NOT mean that the mutex shall be deallocated: + * sys_mutex_free() is always called before calling this function! + * This may also be a define, in which case the function is not prototyped. + */ +void sys_mutex_set_invalid(sys_mutex_t *mutex); +#endif +#endif /* LWIP_COMPAT_MUTEX */ + +/* Semaphore functions: */ + +/** + * @ingroup sys_sem + * Create a new semaphore + * Creates a new semaphore. The semaphore is allocated to the memory that 'sem' + * points to (which can be both a pointer or the actual OS structure). + * The "count" argument specifies the initial state of the semaphore (which is + * either 0 or 1). + * If the semaphore has been created, ERR_OK should be returned. Returning any + * other error will provide a hint what went wrong, but except for assertions, + * no real error handling is implemented. + * + * @param sem pointer to the semaphore to create + * @param count initial count of the semaphore + * @return ERR_OK if successful, another err_t otherwise + */ +err_t sys_sem_new(sys_sem_t *sem, u8_t count); +/** + * @ingroup sys_sem + * Signals a semaphore + * @param sem the semaphore to signal + */ +void sys_sem_signal(sys_sem_t *sem); +/** + * @ingroup sys_sem + * Blocks the thread while waiting for the semaphore to be signaled. If the + * "timeout" argument is non-zero, the thread should only be blocked for the + * specified time (measured in milliseconds). If the "timeout" argument is zero, + * the thread should be blocked until the semaphore is signalled. + * + * The return value is SYS_ARCH_TIMEOUT if the semaphore wasn't signaled within + * the specified time or any other value if it was signaled (with or without + * waiting). + * Notice that lwIP implements a function with a similar name, + * sys_sem_wait(), that uses the sys_arch_sem_wait() function. + * + * @param sem the semaphore to wait for + * @param timeout timeout in milliseconds to wait (0 = wait forever) + * @return SYS_ARCH_TIMEOUT on timeout, any other value on success + */ +u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout); +/** + * @ingroup sys_sem + * Deallocates a semaphore. + * @param sem semaphore to delete + */ +void sys_sem_free(sys_sem_t *sem); +/** Wait for a semaphore - forever/no timeout */ +#define sys_sem_wait(sem) sys_arch_sem_wait(sem, 0) +#ifndef sys_sem_valid +/** + * @ingroup sys_sem + * Returns 1 if the semaphore is valid, 0 if it is not valid. + * When using pointers, a simple way is to check the pointer for != NULL. + * When directly using OS structures, implementing this may be more complex. + * This may also be a define, in which case the function is not prototyped. + */ +int sys_sem_valid(sys_sem_t *sem); +#endif +#ifndef sys_sem_set_invalid +/** + * @ingroup sys_sem + * Invalidate a semaphore so that sys_sem_valid() returns 0. + * ATTENTION: This does NOT mean that the semaphore shall be deallocated: + * sys_sem_free() is always called before calling this function! + * This may also be a define, in which case the function is not prototyped. + */ +void sys_sem_set_invalid(sys_sem_t *sem); +#endif +#ifndef sys_sem_valid_val +/** + * Same as sys_sem_valid() but taking a value, not a pointer + */ +#define sys_sem_valid_val(sem) sys_sem_valid(&(sem)) +#endif +#ifndef sys_sem_set_invalid_val +/** + * Same as sys_sem_set_invalid() but taking a value, not a pointer + */ +#define sys_sem_set_invalid_val(sem) sys_sem_set_invalid(&(sem)) +#endif + +#ifndef sys_msleep +/** + * @ingroup sys_misc + * Sleep for specified number of ms + */ +void sys_msleep(u32_t ms); /* only has a (close to) 1 ms resolution. */ +#endif + +/* Mailbox functions. */ + +/** + * @ingroup sys_mbox + * Creates an empty mailbox for maximum "size" elements. Elements stored + * in mailboxes are pointers. You have to define macros "_MBOX_SIZE" + * in your lwipopts.h, or ignore this parameter in your implementation + * and use a default size. + * If the mailbox has been created, ERR_OK should be returned. Returning any + * other error will provide a hint what went wrong, but except for assertions, + * no real error handling is implemented. + * + * @param mbox pointer to the mbox to create + * @param size (minimum) number of messages in this mbox + * @return ERR_OK if successful, another err_t otherwise + */ +err_t sys_mbox_new(sys_mbox_t *mbox, int size); +/** + * @ingroup sys_mbox + * Post a message to an mbox - may not fail + * -> blocks if full, only to be used from tasks NOT from ISR! + * + * @param mbox mbox to posts the message + * @param msg message to post (ATTENTION: can be NULL) + */ +void sys_mbox_post(sys_mbox_t *mbox, void *msg); +/** + * @ingroup sys_mbox + * Try to post a message to an mbox - may fail if full. + * Can be used from ISR (if the sys arch layer allows this). + * Returns ERR_MEM if it is full, else, ERR_OK if the "msg" is posted. + * + * @param mbox mbox to posts the message + * @param msg message to post (ATTENTION: can be NULL) + */ +err_t sys_mbox_trypost(sys_mbox_t *mbox, void *msg); +/** + * @ingroup sys_mbox + * Try to post a message to an mbox - may fail if full. + * To be be used from ISR. + * Returns ERR_MEM if it is full, else, ERR_OK if the "msg" is posted. + * + * @param mbox mbox to posts the message + * @param msg message to post (ATTENTION: can be NULL) + */ +err_t sys_mbox_trypost_fromisr(sys_mbox_t *mbox, void *msg); +/** + * @ingroup sys_mbox + * Blocks the thread until a message arrives in the mailbox, but does + * not block the thread longer than "timeout" milliseconds (similar to + * the sys_arch_sem_wait() function). If "timeout" is 0, the thread should + * be blocked until a message arrives. The "msg" argument is a result + * parameter that is set by the function (i.e., by doing "*msg = + * ptr"). The "msg" parameter maybe NULL to indicate that the message + * should be dropped. + * The return values are the same as for the sys_arch_sem_wait() function: + * SYS_ARCH_TIMEOUT if there was a timeout, any other value if a messages + * is received. + * + * Note that a function with a similar name, sys_mbox_fetch(), is + * implemented by lwIP. + * + * @param mbox mbox to get a message from + * @param msg pointer where the message is stored + * @param timeout maximum time (in milliseconds) to wait for a message (0 = wait forever) + * @return SYS_ARCH_TIMEOUT on timeout, any other value if a message has been received + */ +u32_t sys_arch_mbox_fetch(sys_mbox_t *mbox, void **msg, u32_t timeout); +/* Allow port to override with a macro, e.g. special timeout for sys_arch_mbox_fetch() */ +#ifndef sys_arch_mbox_tryfetch +/** + * @ingroup sys_mbox + * This is similar to sys_arch_mbox_fetch, however if a message is not + * present in the mailbox, it immediately returns with the code + * SYS_MBOX_EMPTY. On success 0 is returned. + * To allow for efficient implementations, this can be defined as a + * function-like macro in sys_arch.h instead of a normal function. For + * example, a naive implementation could be: + * \#define sys_arch_mbox_tryfetch(mbox,msg) sys_arch_mbox_fetch(mbox,msg,1) + * although this would introduce unnecessary delays. + * + * @param mbox mbox to get a message from + * @param msg pointer where the message is stored + * @return 0 (milliseconds) if a message has been received + * or SYS_MBOX_EMPTY if the mailbox is empty + */ +u32_t sys_arch_mbox_tryfetch(sys_mbox_t *mbox, void **msg); +#endif +/** + * For now, we map straight to sys_arch implementation. + */ +#define sys_mbox_tryfetch(mbox, msg) sys_arch_mbox_tryfetch(mbox, msg) +/** + * @ingroup sys_mbox + * Deallocates a mailbox. If there are messages still present in the + * mailbox when the mailbox is deallocated, it is an indication of a + * programming error in lwIP and the developer should be notified. + * + * @param mbox mbox to delete + */ +void sys_mbox_free(sys_mbox_t *mbox); +#define sys_mbox_fetch(mbox, msg) sys_arch_mbox_fetch(mbox, msg, 0) +#ifndef sys_mbox_valid +/** + * @ingroup sys_mbox + * Returns 1 if the mailbox is valid, 0 if it is not valid. + * When using pointers, a simple way is to check the pointer for != NULL. + * When directly using OS structures, implementing this may be more complex. + * This may also be a define, in which case the function is not prototyped. + */ +int sys_mbox_valid(sys_mbox_t *mbox); +#endif +#ifndef sys_mbox_set_invalid +/** + * @ingroup sys_mbox + * Invalidate a mailbox so that sys_mbox_valid() returns 0. + * ATTENTION: This does NOT mean that the mailbox shall be deallocated: + * sys_mbox_free() is always called before calling this function! + * This may also be a define, in which case the function is not prototyped. + */ +void sys_mbox_set_invalid(sys_mbox_t *mbox); +#endif +#ifndef sys_mbox_valid_val +/** + * Same as sys_mbox_valid() but taking a value, not a pointer + */ +#define sys_mbox_valid_val(mbox) sys_mbox_valid(&(mbox)) +#endif +#ifndef sys_mbox_set_invalid_val +/** + * Same as sys_mbox_set_invalid() but taking a value, not a pointer + */ +#define sys_mbox_set_invalid_val(mbox) sys_mbox_set_invalid(&(mbox)) +#endif + + +/** + * @ingroup sys_misc + * The only thread function: + * Starts a new thread named "name" with priority "prio" that will begin its + * execution in the function "thread()". The "arg" argument will be passed as an + * argument to the thread() function. The stack size to used for this thread is + * the "stacksize" parameter. The id of the new thread is returned. Both the id + * and the priority are system dependent. + * ATTENTION: although this function returns a value, it MUST NOT FAIL (ports have to assert this!) + * + * @param name human-readable name for the thread (used for debugging purposes) + * @param thread thread-function + * @param arg parameter passed to 'thread' + * @param stacksize stack size in bytes for the new thread (may be ignored by ports) + * @param prio priority of the new thread (may be ignored by ports) */ +sys_thread_t sys_thread_new(const char *name, lwip_thread_fn thread, void *arg, int stacksize, int prio); + +#endif /* NO_SYS */ + +/** + * @ingroup lwip_opts_lock + * Called as first thing in the lwIP TCPIP thread. Can be used in conjunction + * with @ref LWIP_ASSERT_CORE_LOCKED to check core locking. + * @see @ref multithreading + */ +#if !defined LWIP_MARK_TCPIP_THREAD || defined __DOXYGEN__ +#define LWIP_MARK_TCPIP_THREAD() +#endif + +/** + * @ingroup sys_misc + * sys_init() must be called before anything else. + * Initialize the sys_arch layer. + */ +void sys_init(void); + +#ifndef sys_jiffies +/** + * Ticks/jiffies since power up. + */ +u32_t sys_jiffies(void); +#endif + +#ifdef LWIP_FUZZ_SYS_NOW +/* This offset should be added to the time 'sys_now()' returns */ +extern u32_t sys_now_offset; +#endif + +/** + * @ingroup sys_time + * Returns the current time in milliseconds, + * may be the same as sys_jiffies or at least based on it. + * Don't care for wraparound, this is only used for time diffs. + * Not implementing this function means you cannot use some modules (e.g. TCP + * timestamps, internal timeouts for NO_SYS==1). + */ +u32_t sys_now(void); + +/* Critical Region Protection */ +/* These functions must be implemented in the sys_arch.c file. + In some implementations they can provide a more light-weight protection + mechanism than using semaphores. Otherwise semaphores can be used for + implementation */ +#ifndef SYS_ARCH_PROTECT +/** SYS_LIGHTWEIGHT_PROT + * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection + * for certain critical regions during buffer allocation, deallocation and memory + * allocation and deallocation. + */ +#if SYS_LIGHTWEIGHT_PROT + +/** + * @ingroup sys_prot + * SYS_ARCH_DECL_PROTECT + * declare a protection variable. This macro will default to defining a variable of + * type sys_prot_t. If a particular port needs a different implementation, then + * this macro may be defined in sys_arch.h. + */ +#define SYS_ARCH_DECL_PROTECT(lev) sys_prot_t lev +/** + * @ingroup sys_prot + * SYS_ARCH_PROTECT + * Perform a "fast" protect. This could be implemented by + * disabling interrupts for an embedded system or by using a semaphore or + * mutex. The implementation should allow calling SYS_ARCH_PROTECT when + * already protected. The old protection level is returned in the variable + * "lev". This macro will default to calling the sys_arch_protect() function + * which should be implemented in sys_arch.c. If a particular port needs a + * different implementation, then this macro may be defined in sys_arch.h + */ +#define SYS_ARCH_PROTECT(lev) lev = sys_arch_protect() +/** + * @ingroup sys_prot + * SYS_ARCH_UNPROTECT + * Perform a "fast" set of the protection level to "lev". This could be + * implemented by setting the interrupt level to "lev" within the MACRO or by + * using a semaphore or mutex. This macro will default to calling the + * sys_arch_unprotect() function which should be implemented in + * sys_arch.c. If a particular port needs a different implementation, then + * this macro may be defined in sys_arch.h + */ +#define SYS_ARCH_UNPROTECT(lev) sys_arch_unprotect(lev) +sys_prot_t sys_arch_protect(void); +void sys_arch_unprotect(sys_prot_t pval); + +#else + +#define SYS_ARCH_DECL_PROTECT(lev) +#define SYS_ARCH_PROTECT(lev) +#define SYS_ARCH_UNPROTECT(lev) + +#endif /* SYS_LIGHTWEIGHT_PROT */ + +#endif /* SYS_ARCH_PROTECT */ + +/* + * Macros to set/get and increase/decrease variables in a thread-safe way. + * Use these for accessing variable that are used from more than one thread. + */ + +#ifndef SYS_ARCH_INC +#define SYS_ARCH_INC(var, val) do { \ + SYS_ARCH_DECL_PROTECT(old_level); \ + SYS_ARCH_PROTECT(old_level); \ + var += val; \ + SYS_ARCH_UNPROTECT(old_level); \ + } while(0) +#endif /* SYS_ARCH_INC */ + +#ifndef SYS_ARCH_DEC +#define SYS_ARCH_DEC(var, val) do { \ + SYS_ARCH_DECL_PROTECT(old_level); \ + SYS_ARCH_PROTECT(old_level); \ + var -= val; \ + SYS_ARCH_UNPROTECT(old_level); \ + } while(0) +#endif /* SYS_ARCH_DEC */ + +#ifndef SYS_ARCH_GET +#define SYS_ARCH_GET(var, ret) do { \ + SYS_ARCH_DECL_PROTECT(old_level); \ + SYS_ARCH_PROTECT(old_level); \ + ret = var; \ + SYS_ARCH_UNPROTECT(old_level); \ + } while(0) +#endif /* SYS_ARCH_GET */ + +#ifndef SYS_ARCH_SET +#define SYS_ARCH_SET(var, val) do { \ + SYS_ARCH_DECL_PROTECT(old_level); \ + SYS_ARCH_PROTECT(old_level); \ + var = val; \ + SYS_ARCH_UNPROTECT(old_level); \ + } while(0) +#endif /* SYS_ARCH_SET */ + +#ifndef SYS_ARCH_LOCKED +#define SYS_ARCH_LOCKED(code) do { \ + SYS_ARCH_DECL_PROTECT(old_level); \ + SYS_ARCH_PROTECT(old_level); \ + code; \ + SYS_ARCH_UNPROTECT(old_level); \ + } while(0) +#endif /* SYS_ARCH_LOCKED */ + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_SYS_H */ diff --git a/middleware/lwip/src/include/lwip/tcp.h b/middleware/lwip/src/include/lwip/tcp.h new file mode 100644 index 0000000..451a94b --- /dev/null +++ b/middleware/lwip/src/include/lwip/tcp.h @@ -0,0 +1,506 @@ +/** + * @file + * TCP API (to be used from TCPIP thread)
+ * See also @ref tcp_raw + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_TCP_H +#define LWIP_HDR_TCP_H + +#include "lwip/opt.h" + +#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/tcpbase.h" +#include "lwip/mem.h" +#include "lwip/pbuf.h" +#include "lwip/ip.h" +#include "lwip/icmp.h" +#include "lwip/err.h" +#include "lwip/ip6.h" +#include "lwip/ip6_addr.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct tcp_pcb; +struct tcp_pcb_listen; + +/** Function prototype for tcp accept callback functions. Called when a new + * connection can be accepted on a listening pcb. + * + * @param arg Additional argument to pass to the callback function (@see tcp_arg()) + * @param newpcb The new connection pcb + * @param err An error code if there has been an error accepting. + * Only return ERR_ABRT if you have called tcp_abort from within the + * callback function! + */ +typedef err_t (*tcp_accept_fn)(void *arg, struct tcp_pcb *newpcb, err_t err); + +/** Function prototype for tcp receive callback functions. Called when data has + * been received. + * + * @param arg Additional argument to pass to the callback function (@see tcp_arg()) + * @param tpcb The connection pcb which received data + * @param p The received data (or NULL when the connection has been closed!) + * @param err An error code if there has been an error receiving + * Only return ERR_ABRT if you have called tcp_abort from within the + * callback function! + */ +typedef err_t (*tcp_recv_fn)(void *arg, struct tcp_pcb *tpcb, + struct pbuf *p, err_t err); + +/** Function prototype for tcp sent callback functions. Called when sent data has + * been acknowledged by the remote side. Use it to free corresponding resources. + * This also means that the pcb has now space available to send new data. + * + * @param arg Additional argument to pass to the callback function (@see tcp_arg()) + * @param tpcb The connection pcb for which data has been acknowledged + * @param len The amount of bytes acknowledged + * @return ERR_OK: try to send some data by calling tcp_output + * Only return ERR_ABRT if you have called tcp_abort from within the + * callback function! + */ +typedef err_t (*tcp_sent_fn)(void *arg, struct tcp_pcb *tpcb, + u16_t len); + +/** Function prototype for tcp poll callback functions. Called periodically as + * specified by @see tcp_poll. + * + * @param arg Additional argument to pass to the callback function (@see tcp_arg()) + * @param tpcb tcp pcb + * @return ERR_OK: try to send some data by calling tcp_output + * Only return ERR_ABRT if you have called tcp_abort from within the + * callback function! + */ +typedef err_t (*tcp_poll_fn)(void *arg, struct tcp_pcb *tpcb); + +/** Function prototype for tcp error callback functions. Called when the pcb + * receives a RST or is unexpectedly closed for any other reason. + * + * @note The corresponding pcb is already freed when this callback is called! + * + * @param arg Additional argument to pass to the callback function (@see tcp_arg()) + * @param err Error code to indicate why the pcb has been closed + * ERR_ABRT: aborted through tcp_abort or by a TCP timer + * ERR_RST: the connection was reset by the remote host + */ +typedef void (*tcp_err_fn)(void *arg, err_t err); + +/** Function prototype for tcp connected callback functions. Called when a pcb + * is connected to the remote side after initiating a connection attempt by + * calling tcp_connect(). + * + * @param arg Additional argument to pass to the callback function (@see tcp_arg()) + * @param tpcb The connection pcb which is connected + * @param err An unused error code, always ERR_OK currently ;-) @todo! + * Only return ERR_ABRT if you have called tcp_abort from within the + * callback function! + * + * @note When a connection attempt fails, the error callback is currently called! + */ +typedef err_t (*tcp_connected_fn)(void *arg, struct tcp_pcb *tpcb, err_t err); + +#if LWIP_WND_SCALE +#define RCV_WND_SCALE(pcb, wnd) (((wnd) >> (pcb)->rcv_scale)) +#define SND_WND_SCALE(pcb, wnd) (((wnd) << (pcb)->snd_scale)) +#define TCPWND16(x) ((u16_t)LWIP_MIN((x), 0xFFFF)) +#define TCP_WND_MAX(pcb) ((tcpwnd_size_t)(((pcb)->flags & TF_WND_SCALE) ? TCP_WND : TCPWND16(TCP_WND))) +#else +#define RCV_WND_SCALE(pcb, wnd) (wnd) +#define SND_WND_SCALE(pcb, wnd) (wnd) +#define TCPWND16(x) (x) +#define TCP_WND_MAX(pcb) TCP_WND +#endif +/* Increments a tcpwnd_size_t and holds at max value rather than rollover */ +#define TCP_WND_INC(wnd, inc) do { \ + if ((tcpwnd_size_t)(wnd + inc) >= wnd) { \ + wnd = (tcpwnd_size_t)(wnd + inc); \ + } else { \ + wnd = (tcpwnd_size_t)-1; \ + } \ + } while(0) + +#if LWIP_TCP_SACK_OUT +/** SACK ranges to include in ACK packets. + * SACK entry is invalid if left==right. */ +struct tcp_sack_range { + /** Left edge of the SACK: the first acknowledged sequence number. */ + u32_t left; + /** Right edge of the SACK: the last acknowledged sequence number +1 (so first NOT acknowledged). */ + u32_t right; +}; +#endif /* LWIP_TCP_SACK_OUT */ + +/** Function prototype for deallocation of arguments. Called *just before* the + * pcb is freed, so don't expect to be able to do anything with this pcb! + * + * @param id ext arg id (allocated via @ref tcp_ext_arg_alloc_id) + * @param data pointer to the data (set via @ref tcp_ext_arg_set before) + */ +typedef void (*tcp_extarg_callback_pcb_destroyed_fn)(u8_t id, void *data); + +/** Function prototype to transition arguments from a listening pcb to an accepted pcb + * + * @param id ext arg id (allocated via @ref tcp_ext_arg_alloc_id) + * @param lpcb the listening pcb accepting a connection + * @param cpcb the newly allocated connection pcb + * @return ERR_OK if OK, any error if connection should be dropped + */ +typedef err_t (*tcp_extarg_callback_passive_open_fn)(u8_t id, struct tcp_pcb_listen *lpcb, struct tcp_pcb *cpcb); + +/** A table of callback functions that is invoked for ext arguments */ +struct tcp_ext_arg_callbacks { + /** @ref tcp_extarg_callback_pcb_destroyed_fn */ + tcp_extarg_callback_pcb_destroyed_fn destroy; + /** @ref tcp_extarg_callback_passive_open_fn */ + tcp_extarg_callback_passive_open_fn passive_open; +}; + +#define LWIP_TCP_PCB_NUM_EXT_ARG_ID_INVALID 0xFF + +#if LWIP_TCP_PCB_NUM_EXT_ARGS +/* This is the structure for ext args in tcp pcbs (used as array) */ +struct tcp_pcb_ext_args { + const struct tcp_ext_arg_callbacks *callbacks; + void *data; +}; +/* This is a helper define to prevent zero size arrays if disabled */ +#define TCP_PCB_EXTARGS struct tcp_pcb_ext_args ext_args[LWIP_TCP_PCB_NUM_EXT_ARGS]; +#else +#define TCP_PCB_EXTARGS +#endif + +typedef u16_t tcpflags_t; +#define TCP_ALLFLAGS 0xffffU + +/** + * members common to struct tcp_pcb and struct tcp_listen_pcb + */ +#define TCP_PCB_COMMON(type) \ + type *next; /* for the linked list */ \ + void *callback_arg; \ + TCP_PCB_EXTARGS \ + enum tcp_state state; /* TCP state */ \ + u8_t prio; \ + /* ports are in host byte order */ \ + u16_t local_port + + +/** the TCP protocol control block for listening pcbs */ +struct tcp_pcb_listen { +/** Common members of all PCB types */ + IP_PCB; +/** Protocol specific PCB members */ + TCP_PCB_COMMON(struct tcp_pcb_listen); + +#if LWIP_CALLBACK_API + /* Function to call when a listener has been connected. */ + tcp_accept_fn accept; +#endif /* LWIP_CALLBACK_API */ + +#if TCP_LISTEN_BACKLOG + u8_t backlog; + u8_t accepts_pending; +#endif /* TCP_LISTEN_BACKLOG */ +}; + + +/** the TCP protocol control block */ +struct tcp_pcb { +/** common PCB members */ + IP_PCB; +/** protocol specific PCB members */ + TCP_PCB_COMMON(struct tcp_pcb); + + /* ports are in host byte order */ + u16_t remote_port; + + tcpflags_t flags; +#define TF_ACK_DELAY 0x01U /* Delayed ACK. */ +#define TF_ACK_NOW 0x02U /* Immediate ACK. */ +#define TF_INFR 0x04U /* In fast recovery. */ +#define TF_CLOSEPEND 0x08U /* If this is set, tcp_close failed to enqueue the FIN (retried in tcp_tmr) */ +#define TF_RXCLOSED 0x10U /* rx closed by tcp_shutdown */ +#define TF_FIN 0x20U /* Connection was closed locally (FIN segment enqueued). */ +#define TF_NODELAY 0x40U /* Disable Nagle algorithm */ +#define TF_NAGLEMEMERR 0x80U /* nagle enabled, memerr, try to output to prevent delayed ACK to happen */ +#if LWIP_WND_SCALE +#define TF_WND_SCALE 0x0100U /* Window Scale option enabled */ +#endif +#if TCP_LISTEN_BACKLOG +#define TF_BACKLOGPEND 0x0200U /* If this is set, a connection pcb has increased the backlog on its listener */ +#endif +#if LWIP_TCP_TIMESTAMPS +#define TF_TIMESTAMP 0x0400U /* Timestamp option enabled */ +#endif +#define TF_RTO 0x0800U /* RTO timer has fired, in-flight data moved to unsent and being retransmitted */ +#if LWIP_TCP_SACK_OUT +#define TF_SACK 0x1000U /* Selective ACKs enabled */ +#endif + + /* the rest of the fields are in host byte order + as we have to do some math with them */ + + /* Timers */ + u8_t polltmr, pollinterval; + u8_t last_timer; + u32_t tmr; + + /* receiver variables */ + u32_t rcv_nxt; /* next seqno expected */ + tcpwnd_size_t rcv_wnd; /* receiver window available */ + tcpwnd_size_t rcv_ann_wnd; /* receiver window to announce */ + u32_t rcv_ann_right_edge; /* announced right edge of window */ + +#if LWIP_TCP_SACK_OUT + /* SACK ranges to include in ACK packets (entry is invalid if left==right) */ + struct tcp_sack_range rcv_sacks[LWIP_TCP_MAX_SACK_NUM]; +#define LWIP_TCP_SACK_VALID(pcb, idx) ((pcb)->rcv_sacks[idx].left != (pcb)->rcv_sacks[idx].right) +#endif /* LWIP_TCP_SACK_OUT */ + + /* Retransmission timer. */ + s16_t rtime; + + u16_t mss; /* maximum segment size */ + + /* RTT (round trip time) estimation variables */ + u32_t rttest; /* RTT estimate in 500ms ticks */ + u32_t rtseq; /* sequence number being timed */ + s16_t sa, sv; /* @see "Congestion Avoidance and Control" by Van Jacobson and Karels */ + + s16_t rto; /* retransmission time-out (in ticks of TCP_SLOW_INTERVAL) */ + u8_t nrtx; /* number of retransmissions */ + + /* fast retransmit/recovery */ + u8_t dupacks; + u32_t lastack; /* Highest acknowledged seqno. */ + + /* congestion avoidance/control variables */ + tcpwnd_size_t cwnd; + tcpwnd_size_t ssthresh; + + /* first byte following last rto byte */ + u32_t rto_end; + + /* sender variables */ + u32_t snd_nxt; /* next new seqno to be sent */ + u32_t snd_wl1, snd_wl2; /* Sequence and acknowledgement numbers of last + window update. */ + u32_t snd_lbb; /* Sequence number of next byte to be buffered. */ + tcpwnd_size_t snd_wnd; /* sender window */ + tcpwnd_size_t snd_wnd_max; /* the maximum sender window announced by the remote host */ + + tcpwnd_size_t snd_buf; /* Available buffer space for sending (in bytes). */ +#define TCP_SNDQUEUELEN_OVERFLOW (0xffffU-3) + u16_t snd_queuelen; /* Number of pbufs currently in the send buffer. */ + +#if TCP_OVERSIZE + /* Extra bytes available at the end of the last pbuf in unsent. */ + u16_t unsent_oversize; +#endif /* TCP_OVERSIZE */ + + tcpwnd_size_t bytes_acked; + + /* These are ordered by sequence number: */ + struct tcp_seg *unsent; /* Unsent (queued) segments. */ + struct tcp_seg *unacked; /* Sent but unacknowledged segments. */ +#if TCP_QUEUE_OOSEQ + struct tcp_seg *ooseq; /* Received out of sequence segments. */ +#endif /* TCP_QUEUE_OOSEQ */ + + struct pbuf *refused_data; /* Data previously received but not yet taken by upper layer */ + +#if LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG + struct tcp_pcb_listen* listener; +#endif /* LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG */ + +#if LWIP_CALLBACK_API + /* Function to be called when more send buffer space is available. */ + tcp_sent_fn sent; + /* Function to be called when (in-sequence) data has arrived. */ + tcp_recv_fn recv; + /* Function to be called when a connection has been set up. */ + tcp_connected_fn connected; + /* Function which is called periodically. */ + tcp_poll_fn poll; + /* Function to be called whenever a fatal error occurs. */ + tcp_err_fn errf; +#endif /* LWIP_CALLBACK_API */ + +#if LWIP_TCP_TIMESTAMPS + u32_t ts_lastacksent; + u32_t ts_recent; +#endif /* LWIP_TCP_TIMESTAMPS */ + + /* idle time before KEEPALIVE is sent */ + u32_t keep_idle; +#if LWIP_TCP_KEEPALIVE + u32_t keep_intvl; + u32_t keep_cnt; +#endif /* LWIP_TCP_KEEPALIVE */ + + /* Persist timer counter */ + u8_t persist_cnt; + /* Persist timer back-off */ + u8_t persist_backoff; + /* Number of persist probes */ + u8_t persist_probe; + + /* KEEPALIVE counter */ + u8_t keep_cnt_sent; + +#if LWIP_WND_SCALE + u8_t snd_scale; + u8_t rcv_scale; +#endif +#if LWIP_TCP_USER_TIMEOUT + /* Socket TCP_USER_TIMEOUT in ms */ + u32_t user_timeout; +#endif +}; + +#if LWIP_EVENT_API + +enum lwip_event { + LWIP_EVENT_ACCEPT, + LWIP_EVENT_SENT, + LWIP_EVENT_RECV, + LWIP_EVENT_CONNECTED, + LWIP_EVENT_POLL, + LWIP_EVENT_ERR +}; + +err_t lwip_tcp_event(void *arg, struct tcp_pcb *pcb, + enum lwip_event, + struct pbuf *p, + u16_t size, + err_t err); + +#endif /* LWIP_EVENT_API */ + +/* Application program's interface: */ +struct tcp_pcb * tcp_new (void); +struct tcp_pcb * tcp_new_ip_type (u8_t type); + +void tcp_arg (struct tcp_pcb *pcb, void *arg); +#if LWIP_CALLBACK_API +void tcp_recv (struct tcp_pcb *pcb, tcp_recv_fn recv); +void tcp_sent (struct tcp_pcb *pcb, tcp_sent_fn sent); +void tcp_err (struct tcp_pcb *pcb, tcp_err_fn err); +void tcp_accept (struct tcp_pcb *pcb, tcp_accept_fn accept); +#endif /* LWIP_CALLBACK_API */ +void tcp_poll (struct tcp_pcb *pcb, tcp_poll_fn poll, u8_t interval); + +#define tcp_set_flags(pcb, set_flags) do { (pcb)->flags = (tcpflags_t)((pcb)->flags | (set_flags)); } while(0) +#define tcp_clear_flags(pcb, clr_flags) do { (pcb)->flags = (tcpflags_t)((pcb)->flags & (tcpflags_t)(~(clr_flags) & TCP_ALLFLAGS)); } while(0) +#define tcp_is_flag_set(pcb, flag) (((pcb)->flags & (flag)) != 0) + +#if LWIP_TCP_TIMESTAMPS +#define tcp_mss(pcb) (((pcb)->flags & TF_TIMESTAMP) ? ((pcb)->mss - 12) : (pcb)->mss) +#else /* LWIP_TCP_TIMESTAMPS */ +/** @ingroup tcp_raw */ +#define tcp_mss(pcb) ((pcb)->mss) +#endif /* LWIP_TCP_TIMESTAMPS */ +/** @ingroup tcp_raw */ +#define tcp_sndbuf(pcb) (TCPWND16((pcb)->snd_buf)) +/** @ingroup tcp_raw */ +#define tcp_sndqueuelen(pcb) ((pcb)->snd_queuelen) +/** @ingroup tcp_raw */ +#define tcp_nagle_disable(pcb) tcp_set_flags(pcb, TF_NODELAY) +/** @ingroup tcp_raw */ +#define tcp_nagle_enable(pcb) tcp_clear_flags(pcb, TF_NODELAY) +/** @ingroup tcp_raw */ +#define tcp_nagle_disabled(pcb) tcp_is_flag_set(pcb, TF_NODELAY) + +#if TCP_LISTEN_BACKLOG +#define tcp_backlog_set(pcb, new_backlog) do { \ + LWIP_ASSERT("pcb->state == LISTEN (called for wrong pcb?)", (pcb)->state == LISTEN); \ + ((struct tcp_pcb_listen *)(pcb))->backlog = ((new_backlog) ? (new_backlog) : 1); } while(0) +void tcp_backlog_delayed(struct tcp_pcb* pcb); +void tcp_backlog_accepted(struct tcp_pcb* pcb); +#else /* TCP_LISTEN_BACKLOG */ +#define tcp_backlog_set(pcb, new_backlog) +#define tcp_backlog_delayed(pcb) +#define tcp_backlog_accepted(pcb) +#endif /* TCP_LISTEN_BACKLOG */ +#define tcp_accepted(pcb) do { LWIP_UNUSED_ARG(pcb); } while(0) /* compatibility define, not needed any more */ + +void tcp_recved (struct tcp_pcb *pcb, u16_t len); +err_t tcp_bind (struct tcp_pcb *pcb, const ip_addr_t *ipaddr, + u16_t port); +void tcp_bind_netif(struct tcp_pcb *pcb, const struct netif *netif); +err_t tcp_connect (struct tcp_pcb *pcb, const ip_addr_t *ipaddr, + u16_t port, tcp_connected_fn connected); + +struct tcp_pcb * tcp_listen_with_backlog_and_err(struct tcp_pcb *pcb, u8_t backlog, err_t *err); +struct tcp_pcb * tcp_listen_with_backlog(struct tcp_pcb *pcb, u8_t backlog); +/** @ingroup tcp_raw */ +#define tcp_listen(pcb) tcp_listen_with_backlog(pcb, TCP_DEFAULT_LISTEN_BACKLOG) + +void tcp_abort (struct tcp_pcb *pcb); +err_t tcp_close (struct tcp_pcb *pcb); +err_t tcp_shutdown(struct tcp_pcb *pcb, int shut_rx, int shut_tx); + +err_t tcp_write (struct tcp_pcb *pcb, const void *dataptr, u16_t len, + u8_t apiflags); + +void tcp_setprio (struct tcp_pcb *pcb, u8_t prio); +#if LWIP_SIOCOUTQ +int tcp_seg_get_unacked_count(struct tcp_pcb *pcb); +#endif /* LWIP_SIOCOUTQ */ +err_t tcp_output (struct tcp_pcb *pcb); + +err_t tcp_tcp_get_tcp_addrinfo(struct tcp_pcb *pcb, int local, ip_addr_t *addr, u16_t *port); + +#define tcp_dbg_get_tcp_state(pcb) ((pcb)->state) + +/* for compatibility with older implementation */ +#define tcp_new_ip6() tcp_new_ip_type(IPADDR_TYPE_V6) + +#if LWIP_TCP_PCB_NUM_EXT_ARGS +u8_t tcp_ext_arg_alloc_id(void); +void tcp_ext_arg_set_callbacks(struct tcp_pcb *pcb, u8_t id, const struct tcp_ext_arg_callbacks * const callbacks); +void tcp_ext_arg_set(struct tcp_pcb *pcb, u8_t id, void *arg); +void *tcp_ext_arg_get(const struct tcp_pcb *pcb, u8_t id); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_TCP */ + +#endif /* LWIP_HDR_TCP_H */ diff --git a/middleware/lwip/src/include/lwip/tcpbase.h b/middleware/lwip/src/include/lwip/tcpbase.h new file mode 100644 index 0000000..018790f --- /dev/null +++ b/middleware/lwip/src/include/lwip/tcpbase.h @@ -0,0 +1,88 @@ +/** + * @file + * Base TCP API definitions shared by TCP and ALTCP
+ * See also @ref tcp_raw + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_TCPBASE_H +#define LWIP_HDR_TCPBASE_H + +#include "lwip/opt.h" + +#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ + +#ifdef __cplusplus +extern "C" { +#endif + + +#if LWIP_WND_SCALE +typedef u32_t tcpwnd_size_t; +#else +typedef u16_t tcpwnd_size_t; +#endif + +enum tcp_state { + CLOSED = 0, + LISTEN = 1, + SYN_SENT = 2, + SYN_RCVD = 3, + ESTABLISHED = 4, + FIN_WAIT_1 = 5, + FIN_WAIT_2 = 6, + CLOSE_WAIT = 7, + CLOSING = 8, + LAST_ACK = 9, + TIME_WAIT = 10 +}; +/* ATTENTION: this depends on state number ordering! */ +#define TCP_STATE_IS_CLOSING(state) ((state) >= FIN_WAIT_1) + +/* Flags for "apiflags" parameter in tcp_write */ +#define TCP_WRITE_FLAG_COPY 0x01 +#define TCP_WRITE_FLAG_MORE 0x02 + +#define TCP_PRIO_MIN 1 +#define TCP_PRIO_NORMAL 64 +#define TCP_PRIO_MAX 127 + +const char* tcp_debug_state_str(enum tcp_state s); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_TCP */ + +#endif /* LWIP_HDR_TCPBASE_H */ diff --git a/middleware/lwip/src/include/lwip/tcpip.h b/middleware/lwip/src/include/lwip/tcpip.h new file mode 100644 index 0000000..30ce4fe --- /dev/null +++ b/middleware/lwip/src/include/lwip/tcpip.h @@ -0,0 +1,114 @@ +/** + * @file + * Functions to sync with TCPIP thread + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_TCPIP_H +#define LWIP_HDR_TCPIP_H + +#include "lwip/opt.h" + +#if !NO_SYS /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/err.h" +#include "lwip/timeouts.h" +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_TCPIP_CORE_LOCKING +/** The global semaphore to lock the stack. */ +extern sys_mutex_t lock_tcpip_core; +#if !defined LOCK_TCPIP_CORE || defined __DOXYGEN__ +/** Lock lwIP core mutex (needs @ref LWIP_TCPIP_CORE_LOCKING 1) */ +#define LOCK_TCPIP_CORE() sys_mutex_lock(&lock_tcpip_core) +/** Unlock lwIP core mutex (needs @ref LWIP_TCPIP_CORE_LOCKING 1) */ +#define UNLOCK_TCPIP_CORE() sys_mutex_unlock(&lock_tcpip_core) +#endif /* LOCK_TCPIP_CORE */ +#else /* LWIP_TCPIP_CORE_LOCKING */ +#define LOCK_TCPIP_CORE() +#define UNLOCK_TCPIP_CORE() +#endif /* LWIP_TCPIP_CORE_LOCKING */ + +struct pbuf; +struct netif; + +/** Function prototype for the init_done function passed to tcpip_init */ +typedef void (*tcpip_init_done_fn)(void *arg); +/** Function prototype for functions passed to tcpip_callback() */ +typedef void (*tcpip_callback_fn)(void *ctx); + +/* Forward declarations */ +struct tcpip_callback_msg; + +void tcpip_init(tcpip_init_done_fn tcpip_init_done, void *arg); + +err_t tcpip_inpkt(struct pbuf *p, struct netif *inp, netif_input_fn input_fn); +err_t tcpip_input(struct pbuf *p, struct netif *inp); + +err_t tcpip_try_callback(tcpip_callback_fn function, void *ctx); +err_t tcpip_callback(tcpip_callback_fn function, void *ctx); +err_t tcpip_callback_wait(tcpip_callback_fn function, void *ctx); +/** @ingroup lwip_os + * @deprecated use tcpip_try_callback() or tcpip_callback() instead + */ +#define tcpip_callback_with_block(function, ctx, block) ((block != 0)? tcpip_callback(function, ctx) : tcpip_try_callback(function, ctx)) + +struct tcpip_callback_msg* tcpip_callbackmsg_new(tcpip_callback_fn function, void *ctx); +void tcpip_callbackmsg_delete(struct tcpip_callback_msg* msg); +err_t tcpip_callbackmsg_trycallback(struct tcpip_callback_msg* msg); +err_t tcpip_callbackmsg_trycallback_fromisr(struct tcpip_callback_msg* msg); + +/* free pbufs or heap memory from another context without blocking */ +err_t pbuf_free_callback(struct pbuf *p); +err_t mem_free_callback(void *m); + +#if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS +err_t tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg); +err_t tcpip_untimeout(sys_timeout_handler h, void *arg); +#endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */ + +#ifdef TCPIP_THREAD_TEST +int tcpip_thread_poll_one(void); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* !NO_SYS */ + +#endif /* LWIP_HDR_TCPIP_H */ diff --git a/middleware/lwip/src/include/lwip/timeouts.h b/middleware/lwip/src/include/lwip/timeouts.h new file mode 100644 index 0000000..b601f9e --- /dev/null +++ b/middleware/lwip/src/include/lwip/timeouts.h @@ -0,0 +1,128 @@ +/** + * @file + * Timer implementations + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_TIMEOUTS_H +#define LWIP_HDR_TIMEOUTS_H + +#include "lwip/opt.h" +#include "lwip/err.h" +#if !NO_SYS +#include "lwip/sys.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef LWIP_DEBUG_TIMERNAMES +#ifdef LWIP_DEBUG +#define LWIP_DEBUG_TIMERNAMES SYS_DEBUG +#else /* LWIP_DEBUG */ +#define LWIP_DEBUG_TIMERNAMES 0 +#endif /* LWIP_DEBUG*/ +#endif + +/** Returned by sys_timeouts_sleeptime() to indicate there is no timer, so we + * can sleep forever. + */ +#define SYS_TIMEOUTS_SLEEPTIME_INFINITE 0xFFFFFFFF + +/** Function prototype for a stack-internal timer function that has to be + * called at a defined interval */ +typedef void (* lwip_cyclic_timer_handler)(void); + +/** This struct contains information about a stack-internal timer function + that has to be called at a defined interval */ +struct lwip_cyclic_timer { + u32_t interval_ms; + lwip_cyclic_timer_handler handler; +#if LWIP_DEBUG_TIMERNAMES + const char* handler_name; +#endif /* LWIP_DEBUG_TIMERNAMES */ +}; + +/** This array contains all stack-internal cyclic timers. To get the number of + * timers, use lwip_num_cyclic_timers */ +extern const struct lwip_cyclic_timer lwip_cyclic_timers[]; +/** Array size of lwip_cyclic_timers[] */ +extern const int lwip_num_cyclic_timers; + +#if LWIP_TIMERS + +/** Function prototype for a timeout callback function. Register such a function + * using sys_timeout(). + * + * @param arg Additional argument to pass to the function - set up by sys_timeout() + */ +typedef void (* sys_timeout_handler)(void *arg); + +struct sys_timeo { + struct sys_timeo *next; + u32_t time; + sys_timeout_handler h; + void *arg; +#if LWIP_DEBUG_TIMERNAMES + const char* handler_name; +#endif /* LWIP_DEBUG_TIMERNAMES */ +}; + +void sys_timeouts_init(void); + +#if LWIP_DEBUG_TIMERNAMES +void sys_timeout_debug(u32_t msecs, sys_timeout_handler handler, void *arg, const char* handler_name); +#define sys_timeout(msecs, handler, arg) sys_timeout_debug(msecs, handler, arg, #handler) +#else /* LWIP_DEBUG_TIMERNAMES */ +void sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg); +#endif /* LWIP_DEBUG_TIMERNAMES */ + +void sys_untimeout(sys_timeout_handler handler, void *arg); +void sys_restart_timeouts(void); +void sys_check_timeouts(void); +u32_t sys_timeouts_sleeptime(void); + +#if LWIP_TESTMODE +struct sys_timeo** sys_timeouts_get_next_timeout(void); +void lwip_cyclic_timer(void *arg); +#endif + +#endif /* LWIP_TIMERS */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_TIMEOUTS_H */ diff --git a/middleware/lwip/src/include/lwip/udp.h b/middleware/lwip/src/include/lwip/udp.h new file mode 100644 index 0000000..f1deae3 --- /dev/null +++ b/middleware/lwip/src/include/lwip/udp.h @@ -0,0 +1,195 @@ +/** + * @file + * UDP API (to be used from TCPIP thread)
+ * See also @ref udp_raw + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_UDP_H +#define LWIP_HDR_UDP_H + +#include "lwip/opt.h" + +#if LWIP_UDP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/pbuf.h" +#include "lwip/netif.h" +#include "lwip/ip_addr.h" +#include "lwip/ip.h" +#include "lwip/ip6_addr.h" +#include "lwip/prot/udp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define UDP_FLAGS_NOCHKSUM 0x01U +#define UDP_FLAGS_UDPLITE 0x02U +#define UDP_FLAGS_CONNECTED 0x04U +#define UDP_FLAGS_MULTICAST_LOOP 0x08U + +struct udp_pcb; + +/** Function prototype for udp pcb receive callback functions + * addr and port are in same byte order as in the pcb + * The callback is responsible for freeing the pbuf + * if it's not used any more. + * + * ATTENTION: Be aware that 'addr' might point into the pbuf 'p' so freeing this pbuf + * can make 'addr' invalid, too. + * + * @param arg user supplied argument (udp_pcb.recv_arg) + * @param pcb the udp_pcb which received data + * @param p the packet buffer that was received + * @param addr the remote IP address from which the packet was received + * @param port the remote port from which the packet was received + */ +typedef void (*udp_recv_fn)(void *arg, struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *addr, u16_t port); + +/** the UDP protocol control block */ +struct udp_pcb { +/** Common members of all PCB types */ + IP_PCB; + +/* Protocol specific PCB members */ + + struct udp_pcb *next; + + u8_t flags; + /** ports are in host byte order */ + u16_t local_port, remote_port; + +#if LWIP_MULTICAST_TX_OPTIONS +#if LWIP_IPV4 + /** outgoing network interface for multicast packets, by IPv4 address (if not 'any') */ + ip4_addr_t mcast_ip4; +#endif /* LWIP_IPV4 */ + /** outgoing network interface for multicast packets, by interface index (if nonzero) */ + u8_t mcast_ifindex; + /** TTL for outgoing multicast packets */ + u8_t mcast_ttl; +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + +#if LWIP_UDPLITE + /** used for UDP_LITE only */ + u16_t chksum_len_rx, chksum_len_tx; +#endif /* LWIP_UDPLITE */ + + /** receive callback function */ + udp_recv_fn recv; + /** user-supplied argument for the recv callback */ + void *recv_arg; +}; +/* udp_pcbs export for external reference (e.g. SNMP agent) */ +extern struct udp_pcb *udp_pcbs; + +/* The following functions is the application layer interface to the + UDP code. */ +struct udp_pcb * udp_new (void); +struct udp_pcb * udp_new_ip_type(u8_t type); +void udp_remove (struct udp_pcb *pcb); +err_t udp_bind (struct udp_pcb *pcb, const ip_addr_t *ipaddr, + u16_t port); +void udp_bind_netif (struct udp_pcb *pcb, const struct netif* netif); +err_t udp_connect (struct udp_pcb *pcb, const ip_addr_t *ipaddr, + u16_t port); +void udp_disconnect (struct udp_pcb *pcb); +void udp_recv (struct udp_pcb *pcb, udp_recv_fn recv, + void *recv_arg); +err_t udp_sendto_if (struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *dst_ip, u16_t dst_port, + struct netif *netif); +err_t udp_sendto_if_src(struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *dst_ip, u16_t dst_port, + struct netif *netif, const ip_addr_t *src_ip); +err_t udp_sendto (struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *dst_ip, u16_t dst_port); +err_t udp_send (struct udp_pcb *pcb, struct pbuf *p); + +#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP +err_t udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *dst_ip, u16_t dst_port, + struct netif *netif, u8_t have_chksum, + u16_t chksum); +err_t udp_sendto_chksum(struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *dst_ip, u16_t dst_port, + u8_t have_chksum, u16_t chksum); +err_t udp_send_chksum(struct udp_pcb *pcb, struct pbuf *p, + u8_t have_chksum, u16_t chksum); +err_t udp_sendto_if_src_chksum(struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *dst_ip, u16_t dst_port, struct netif *netif, + u8_t have_chksum, u16_t chksum, const ip_addr_t *src_ip); +#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ + +#define udp_flags(pcb) ((pcb)->flags) +#define udp_setflags(pcb, f) ((pcb)->flags = (f)) + +#define udp_set_flags(pcb, set_flags) do { (pcb)->flags = (u8_t)((pcb)->flags | (set_flags)); } while(0) +#define udp_clear_flags(pcb, clr_flags) do { (pcb)->flags = (u8_t)((pcb)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0) +#define udp_is_flag_set(pcb, flag) (((pcb)->flags & (flag)) != 0) + +/* The following functions are the lower layer interface to UDP. */ +void udp_input (struct pbuf *p, struct netif *inp); + +void udp_init (void); + +/* for compatibility with older implementation */ +#define udp_new_ip6() udp_new_ip_type(IPADDR_TYPE_V6) + +#if LWIP_MULTICAST_TX_OPTIONS +#if LWIP_IPV4 +#define udp_set_multicast_netif_addr(pcb, ip4addr) ip4_addr_copy((pcb)->mcast_ip4, *(ip4addr)) +#define udp_get_multicast_netif_addr(pcb) (&(pcb)->mcast_ip4) +#endif /* LWIP_IPV4 */ +#define udp_set_multicast_netif_index(pcb, idx) ((pcb)->mcast_ifindex = (idx)) +#define udp_get_multicast_netif_index(pcb) ((pcb)->mcast_ifindex) +#define udp_set_multicast_ttl(pcb, value) ((pcb)->mcast_ttl = (value)) +#define udp_get_multicast_ttl(pcb) ((pcb)->mcast_ttl) +#endif /* LWIP_MULTICAST_TX_OPTIONS */ + +#if UDP_DEBUG +void udp_debug_print(struct udp_hdr *udphdr); +#else +#define udp_debug_print(udphdr) +#endif + +void udp_netif_ip_addr_changed(const ip_addr_t* old_addr, const ip_addr_t* new_addr); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_UDP */ + +#endif /* LWIP_HDR_UDP_H */ diff --git a/middleware/lwip/src/include/netif/bridgeif.h b/middleware/lwip/src/include/netif/bridgeif.h new file mode 100644 index 0000000..f4f8cf1 --- /dev/null +++ b/middleware/lwip/src/include/netif/bridgeif.h @@ -0,0 +1,127 @@ +/** + * @file + * lwIP netif implementing an IEEE 802.1D MAC Bridge + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_NETIF_BRIDGEIF_H +#define LWIP_HDR_NETIF_BRIDGEIF_H + +#include "netif/bridgeif_opts.h" + +#include "lwip/err.h" +#include "lwip/prot/ethernet.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct netif; + +#if (BRIDGEIF_MAX_PORTS < 0) || (BRIDGEIF_MAX_PORTS >= 64) +#error BRIDGEIF_MAX_PORTS must be [1..63] +#elif BRIDGEIF_MAX_PORTS < 8 +typedef u8_t bridgeif_portmask_t; +#elif BRIDGEIF_MAX_PORTS < 16 +typedef u16_t bridgeif_portmask_t; +#elif BRIDGEIF_MAX_PORTS < 32 +typedef u32_t bridgeif_portmask_t; +#elif BRIDGEIF_MAX_PORTS < 64 +typedef u64_t bridgeif_portmask_t; +#endif + +#define BR_FLOOD ((bridgeif_portmask_t)-1) + +/** @ingroup bridgeif + * Initialisation data for @ref bridgeif_init. + * An instance of this type must be passed as parameter 'state' to @ref netif_add + * when the bridge is added. + */ +typedef struct bridgeif_initdata_s { + /** MAC address of the bridge (cannot use the netif's addresses) */ + struct eth_addr ethaddr; + /** Maximum number of ports in the bridge (ports are stored in an array, this + influences memory allocated for netif->state of the bridge netif). */ + u8_t max_ports; + /** Maximum number of dynamic/learning entries in the bridge's forwarding database. + In the default implementation, this controls memory consumption only. */ + u16_t max_fdb_dynamic_entries; + /** Maximum number of static forwarding entries. Influences memory consumption! */ + u16_t max_fdb_static_entries; +} bridgeif_initdata_t; + +/** @ingroup bridgeif + * Use this for constant initialization of a bridgeif_initdat_t + * (ethaddr must be passed as ETH_ADDR()) + */ +#define BRIDGEIF_INITDATA1(max_ports, max_fdb_dynamic_entries, max_fdb_static_entries, ethaddr) {ethaddr, max_ports, max_fdb_dynamic_entries, max_fdb_static_entries} +/** @ingroup bridgeif + * Use this for constant initialization of a bridgeif_initdat_t + * (each byte of ethaddr must be passed) + */ +#define BRIDGEIF_INITDATA2(max_ports, max_fdb_dynamic_entries, max_fdb_static_entries, e0, e1, e2, e3, e4, e5) {{e0, e1, e2, e3, e4, e5}, max_ports, max_fdb_dynamic_entries, max_fdb_static_entries} + +err_t bridgeif_init(struct netif *netif); +err_t bridgeif_add_port(struct netif *bridgeif, struct netif *portif); +err_t bridgeif_fdb_add(struct netif *bridgeif, const struct eth_addr *addr, bridgeif_portmask_t ports); +err_t bridgeif_fdb_remove(struct netif *bridgeif, const struct eth_addr *addr); + +/* FDB interface, can be replaced by own implementation */ +void bridgeif_fdb_update_src(void *fdb_ptr, struct eth_addr *src_addr, u8_t port_idx); +bridgeif_portmask_t bridgeif_fdb_get_dst_ports(void *fdb_ptr, struct eth_addr *dst_addr); +void* bridgeif_fdb_init(u16_t max_fdb_entries); + +#if BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT +#ifndef BRIDGEIF_DECL_PROTECT +/* define bridgeif protection to sys_arch_protect... */ +#include "lwip/sys.h" +#define BRIDGEIF_DECL_PROTECT(lev) SYS_ARCH_DECL_PROTECT(lev) +#define BRIDGEIF_READ_PROTECT(lev) SYS_ARCH_PROTECT(lev) +#define BRIDGEIF_READ_UNPROTECT(lev) SYS_ARCH_UNPROTECT(lev) +#define BRIDGEIF_WRITE_PROTECT(lev) +#define BRIDGEIF_WRITE_UNPROTECT(lev) +#endif +#else /* BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT */ +#include "lwip/tcpip.h" +#define BRIDGEIF_DECL_PROTECT(lev) +#define BRIDGEIF_READ_PROTECT(lev) +#define BRIDGEIF_READ_UNPROTECT(lev) +#define BRIDGEIF_WRITE_PROTECT(lev) +#define BRIDGEIF_WRITE_UNPROTECT(lev) +#endif /* BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_NETIF_BRIDGEIF_H */ diff --git a/middleware/lwip/src/include/netif/bridgeif_opts.h b/middleware/lwip/src/include/netif/bridgeif_opts.h new file mode 100644 index 0000000..b85c301 --- /dev/null +++ b/middleware/lwip/src/include/netif/bridgeif_opts.h @@ -0,0 +1,90 @@ +/** + * @file + * lwIP netif implementing an IEEE 802.1D MAC Bridge + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_NETIF_BRIDGEIF_OPTS_H +#define LWIP_HDR_NETIF_BRIDGEIF_OPTS_H + +#include "lwip/opt.h" + +/** + * @defgroup bridgeif_opts Options + * @ingroup bridgeif + * @{ + */ + +/** BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT==1: set port netif's 'input' function + * to call directly into bridgeif code and on top of that, directly call into + * the selected forwarding port's 'linkoutput' function. + * This means that the bridgeif input/output path is protected from concurrent access + * but as well, *all* bridge port netif's drivers must correctly handle concurrent access! + * == 0: get into tcpip_thread for every input packet (no multithreading) + * ATTENTION: as ==0 relies on tcpip.h, the default depends on NO_SYS setting + */ +#ifndef BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT +#define BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT NO_SYS +#endif + +/** BRIDGEIF_MAX_PORTS: this is used to create a typedef used for forwarding + * bit-fields: the number of bits required is this + 1 (for the internal/cpu port) + * (63 is the maximum, resulting in an u64_t for the bit mask) + * ATTENTION: this controls the maximum number of the implementation only! + * The max. number of ports per bridge must still be passed via netif_add parameter! + */ +#ifndef BRIDGEIF_MAX_PORTS +#define BRIDGEIF_MAX_PORTS 7 +#endif + +/** BRIDGEIF_DEBUG: Enable generic debugging in bridgeif.c. */ +#ifndef BRIDGEIF_DEBUG +#define BRIDGEIF_DEBUG LWIP_DBG_OFF +#endif + +/** BRIDGEIF_DEBUG: Enable FDB debugging in bridgeif.c. */ +#ifndef BRIDGEIF_FDB_DEBUG +#define BRIDGEIF_FDB_DEBUG LWIP_DBG_OFF +#endif + +/** BRIDGEIF_DEBUG: Enable forwarding debugging in bridgeif.c. */ +#ifndef BRIDGEIF_FW_DEBUG +#define BRIDGEIF_FW_DEBUG LWIP_DBG_OFF +#endif + +/** + * @} + */ + +#endif /* LWIP_HDR_NETIF_BRIDGEIF_OPTS_H */ diff --git a/middleware/lwip/src/include/netif/etharp.h b/middleware/lwip/src/include/netif/etharp.h new file mode 100644 index 0000000..b536fd2 --- /dev/null +++ b/middleware/lwip/src/include/netif/etharp.h @@ -0,0 +1,3 @@ +/* ARP has been moved to core/ipv4, provide this #include for compatibility only */ +#include "lwip/etharp.h" +#include "netif/ethernet.h" diff --git a/middleware/lwip/src/include/netif/ethernet.h b/middleware/lwip/src/include/netif/ethernet.h new file mode 100644 index 0000000..49649cb --- /dev/null +++ b/middleware/lwip/src/include/netif/ethernet.h @@ -0,0 +1,77 @@ +/** + * @file + * Ethernet input function - handles INCOMING ethernet level traffic + * To be used in most low-level netif implementations + */ + +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * Copyright (c) 2003-2004 Leon Woestenberg + * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ + +#ifndef LWIP_HDR_NETIF_ETHERNET_H +#define LWIP_HDR_NETIF_ETHERNET_H + +#include "lwip/opt.h" + +#include "lwip/pbuf.h" +#include "lwip/netif.h" +#include "lwip/prot/ethernet.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if LWIP_ARP || LWIP_ETHERNET + +/** Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type) + * to a filter function that returns the correct netif when using multiple + * netifs on one hardware interface where the netif's low-level receive + * routine cannot decide for the correct netif (e.g. when mapping multiple + * IP addresses to one hardware interface). + */ +#ifndef LWIP_ARP_FILTER_NETIF +#define LWIP_ARP_FILTER_NETIF 0 +#endif + +err_t ethernet_input(struct pbuf *p, struct netif *netif); +err_t ethernet_output(struct netif* netif, struct pbuf* p, const struct eth_addr* src, const struct eth_addr* dst, u16_t eth_type); + +extern const struct eth_addr ethbroadcast, ethzero; + +#endif /* LWIP_ARP || LWIP_ETHERNET */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_NETIF_ETHERNET_H */ diff --git a/middleware/lwip/src/include/netif/ieee802154.h b/middleware/lwip/src/include/netif/ieee802154.h new file mode 100644 index 0000000..54e019f --- /dev/null +++ b/middleware/lwip/src/include/netif/ieee802154.h @@ -0,0 +1,112 @@ +/** + * @file + * Definitions for IEEE 802.15.4 MAC frames + */ + +/* + * Copyright (c) 2018 Simon Goldschmidt. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_NETIF_IEEE802154_H +#define LWIP_HDR_NETIF_IEEE802154_H + +#include "lwip/opt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +/** General MAC frame format + * This shows the full featured header, mainly for documentation. + * Some fields are omitted or shortened to achieve frame compression. + */ +struct ieee_802154_hdr { + /** See IEEE_802154_FC_* defines */ + PACK_STRUCT_FIELD(u16_t frame_control); + /** Sequence number is omitted if IEEE_802154_FC_SEQNO_SUPPR is set in frame_control */ + PACK_STRUCT_FLD_8(u8_t sequence_number); + /** Destination PAN ID is omitted if Destination Addressing Mode is 0 */ + PACK_STRUCT_FIELD(u16_t destination_pan_id); + /** Destination Address is omitted if Destination Addressing Mode is 0 */ + PACK_STRUCT_FLD_8(u8_t destination_address[8]); + /** Source PAN ID is omitted if Source Addressing Mode is 0 + or if IEEE_802154_FC_PANID_COMPR is set in frame control*/ + PACK_STRUCT_FIELD(u16_t source_pan_id); + /** Source Address is omitted if Source Addressing Mode is 0 */ + PACK_STRUCT_FLD_8(u8_t source_address[8]); + /* The rest is variable */ +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/* Addressing modes (2 bits) */ +#define IEEE_802154_ADDR_MODE_NO_ADDR 0x00 /* PAN ID and address fields are not present */ +#define IEEE_802154_ADDR_MODE_RESERVED 0x01 /* Reserved */ +#define IEEE_802154_ADDR_MODE_SHORT 0x02 /* Address field contains a short address (16 bit) */ +#define IEEE_802154_ADDR_MODE_EXT 0x03 /* Address field contains an extended address (64 bit) */ + +/* IEEE 802.15.4 Frame Control definitions (2 bytes; see IEEE 802.15.4-2015 ch. 7.2.1) */ +#define IEEE_802154_FC_FT_MASK 0x0007 /* bits 0..2: Frame Type */ +#define IEEE_802154_FC_FT_BEACON 0x00 +#define IEEE_802154_FC_FT_DATA 0x01 +#define IEEE_802154_FC_FT_ACK 0x02 +#define IEEE_802154_FC_FT_MAC_CMD 0x03 +#define IEEE_802154_FC_FT_RESERVED 0x04 +#define IEEE_802154_FC_FT_MULTIPURPOSE 0x05 +#define IEEE_802154_FC_FT_FRAG 0x06 +#define IEEE_802154_FC_FT_EXT 0x07 +#define IEEE_802154_FC_SEC_EN 0x0008 /* bit 3: Security Enabled */ +#define IEEE_802154_FC_FRAME_PEND 0x0010 /* bit 4: Frame Pending */ +#define IEEE_802154_FC_ACK_REQ 0x0020 /* bit 5: AR (ACK required) */ +#define IEEE_802154_FC_PANID_COMPR 0x0040 /* bit 6: PAN ID Compression (src and dst are equal, src PAN ID omitted) */ +#define IEEE_802154_FC_RESERVED 0x0080 +#define IEEE_802154_FC_SEQNO_SUPPR 0x0100 /* bit 8: Sequence Number Suppression */ +#define IEEE_802154_FC_IE_PRESENT 0x0200 /* bit 9: IE Present */ +#define IEEE_802154_FC_DST_ADDR_MODE_MASK 0x0c00 /* bits 10..11: Destination Addressing Mode */ +#define IEEE_802154_FC_DST_ADDR_MODE_NO_ADDR (IEEE_802154_ADDR_MODE_NO_ADDR << 10) +#define IEEE_802154_FC_DST_ADDR_MODE_SHORT (IEEE_802154_ADDR_MODE_SHORT << 10) +#define IEEE_802154_FC_DST_ADDR_MODE_EXT (IEEE_802154_ADDR_MODE_EXT << 10) +#define IEEE_802154_FC_FRAME_VERSION_MASK 0x3000 /* bits 12..13: Frame Version */ +#define IEEE_802154_FC_FRAME_VERSION_GET(x) (((x) & IEEE_802154_FC_FRAME_VERSION_MASK) >> 12) +#define IEEE_802154_FC_SRC_ADDR_MODE_MASK 0xc000 /* bits 14..15: Source Addressing Mode */ +#define IEEE_802154_FC_SRC_ADDR_MODE_SHORT (IEEE_802154_ADDR_MODE_SHORT << 14) +#define IEEE_802154_FC_SRC_ADDR_MODE_EXT (IEEE_802154_ADDR_MODE_EXT << 14) + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_NETIF_IEEE802154_H */ diff --git a/middleware/lwip/src/include/netif/lowpan6.h b/middleware/lwip/src/include/netif/lowpan6.h new file mode 100644 index 0000000..ecff24b --- /dev/null +++ b/middleware/lwip/src/include/netif/lowpan6.h @@ -0,0 +1,89 @@ +/** + * @file + * + * 6LowPAN output for IPv6. Uses ND tables for link-layer addressing. Fragments packets to 6LowPAN units. + */ + +/* + * Copyright (c) 2015 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#ifndef LWIP_HDR_LOWPAN6_H +#define LWIP_HDR_LOWPAN6_H + +#include "netif/lowpan6_opts.h" + +#if LWIP_IPV6 + +#include "netif/lowpan6_common.h" +#include "lwip/pbuf.h" +#include "lwip/ip.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** 1 second period for reassembly */ +#define LOWPAN6_TMR_INTERVAL 1000 + +void lowpan6_tmr(void); + +err_t lowpan6_set_context(u8_t idx, const ip6_addr_t * context); +err_t lowpan6_set_short_addr(u8_t addr_high, u8_t addr_low); + +#if LWIP_IPV4 +err_t lowpan4_output(struct netif *netif, struct pbuf *q, const ip4_addr_t *ipaddr); +#endif /* LWIP_IPV4 */ +err_t lowpan6_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr); +err_t lowpan6_input(struct pbuf * p, struct netif *netif); +err_t lowpan6_if_init(struct netif *netif); + +/* pan_id in network byte order. */ +err_t lowpan6_set_pan_id(u16_t pan_id); + +u16_t lowpan6_calc_crc(const void *buf, u16_t len); + +#if !NO_SYS +err_t tcpip_6lowpan_input(struct pbuf *p, struct netif *inp); +#endif /* !NO_SYS */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6 */ + +#endif /* LWIP_HDR_LOWPAN6_H */ diff --git a/middleware/lwip/src/include/netif/lowpan6_ble.h b/middleware/lwip/src/include/netif/lowpan6_ble.h new file mode 100644 index 0000000..ff35fcd --- /dev/null +++ b/middleware/lwip/src/include/netif/lowpan6_ble.h @@ -0,0 +1,78 @@ +/** + * @file + * 6LowPAN over BLE for IPv6 (RFC7668). + */ + +/* + * Copyright (c) 2017 Benjamin Aigner + * Copyright (c) 2015 Inico Technologies Ltd. , Author: Ivan Delamer + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Benjamin Aigner + * + * Based on the original 6lowpan implementation of lwIP ( @see 6lowpan.c) + */ + +#ifndef LWIP_HDR_LOWPAN6_BLE_H +#define LWIP_HDR_LOWPAN6_BLE_H + +#include "netif/lowpan6_opts.h" + +#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ + +#include "netif/lowpan6_common.h" +#include "lwip/pbuf.h" +#include "lwip/ip.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + +err_t rfc7668_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr); +err_t rfc7668_input(struct pbuf * p, struct netif *netif); +err_t rfc7668_set_local_addr_eui64(struct netif *netif, const u8_t *local_addr, size_t local_addr_len); +err_t rfc7668_set_local_addr_mac48(struct netif *netif, const u8_t *local_addr, size_t local_addr_len, int is_public_addr); +err_t rfc7668_set_peer_addr_eui64(struct netif *netif, const u8_t *peer_addr, size_t peer_addr_len); +err_t rfc7668_set_peer_addr_mac48(struct netif *netif, const u8_t *peer_addr, size_t peer_addr_len, int is_public_addr); +err_t rfc7668_set_context(u8_t index, const ip6_addr_t * context); +err_t rfc7668_if_init(struct netif *netif); + +#if !NO_SYS +err_t tcpip_rfc7668_input(struct pbuf *p, struct netif *inp); +#endif + +void ble_addr_to_eui64(u8_t *dst, const u8_t *src, int public_addr); +void eui64_to_ble_addr(u8_t *dst, const u8_t *src); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6 */ + +#endif /* LWIP_HDR_LOWPAN6_BLE_H */ diff --git a/middleware/lwip/src/include/netif/lowpan6_common.h b/middleware/lwip/src/include/netif/lowpan6_common.h new file mode 100644 index 0000000..0dc13ab --- /dev/null +++ b/middleware/lwip/src/include/netif/lowpan6_common.h @@ -0,0 +1,82 @@ +/** + * @file + * + * Common 6LowPAN routines for IPv6. Uses ND tables for link-layer addressing. Fragments packets to 6LowPAN units. + */ + +/* + * Copyright (c) 2015 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#ifndef LWIP_HDR_LOWPAN6_COMMON_H +#define LWIP_HDR_LOWPAN6_COMMON_H + +#include "netif/lowpan6_opts.h" + +#if LWIP_IPV6 /* don't build if IPv6 is disabled in lwipopts.h */ + +#include "lwip/pbuf.h" +#include "lwip/ip.h" +#include "lwip/ip6_addr.h" +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** Helper define for a link layer address, which can be encoded as 0, 2 or 8 bytes */ +struct lowpan6_link_addr { + /* encoded length of the address */ + u8_t addr_len; + /* address bytes */ + u8_t addr[8]; +}; + +s8_t lowpan6_get_address_mode(const ip6_addr_t *ip6addr, const struct lowpan6_link_addr *mac_addr); + +#if LWIP_6LOWPAN_IPHC +err_t lowpan6_compress_headers(struct netif *netif, u8_t *inbuf, size_t inbuf_size, u8_t *outbuf, size_t outbuf_size, + u8_t *lowpan6_header_len_out, u8_t *hidden_header_len_out, ip6_addr_t *lowpan6_contexts, + const struct lowpan6_link_addr *src, const struct lowpan6_link_addr *dst); +struct pbuf *lowpan6_decompress(struct pbuf *p, u16_t datagram_size, ip6_addr_t *lowpan6_contexts, + struct lowpan6_link_addr *src, struct lowpan6_link_addr *dest); +#endif /* LWIP_6LOWPAN_IPHC */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6 */ + +#endif /* LWIP_HDR_LOWPAN6_COMMON_H */ diff --git a/middleware/lwip/src/include/netif/lowpan6_opts.h b/middleware/lwip/src/include/netif/lowpan6_opts.h new file mode 100644 index 0000000..32e5c5e --- /dev/null +++ b/middleware/lwip/src/include/netif/lowpan6_opts.h @@ -0,0 +1,122 @@ +/** + * @file + * 6LowPAN options list + */ + +/* + * Copyright (c) 2015 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +#ifndef LWIP_HDR_LOWPAN6_OPTS_H +#define LWIP_HDR_LOWPAN6_OPTS_H + +#include "lwip/opt.h" + +/** LWIP_6LOWPAN_NUM_CONTEXTS: define the number of compression + * contexts per netif type + */ +#ifndef LWIP_6LOWPAN_NUM_CONTEXTS +#define LWIP_6LOWPAN_NUM_CONTEXTS 10 +#endif + +/** LWIP_6LOWPAN_INFER_SHORT_ADDRESS: set this to 0 to disable creating + * short addresses for matching addresses (debug only) + */ +#ifndef LWIP_6LOWPAN_INFER_SHORT_ADDRESS +#define LWIP_6LOWPAN_INFER_SHORT_ADDRESS 1 +#endif + +/** LWIP_6LOWPAN_IPHC: set this to 0 to disable IP header compression as per + * RFC 6282 (which is mandatory for BLE) + */ +#ifndef LWIP_6LOWPAN_IPHC +#define LWIP_6LOWPAN_IPHC 1 +#endif + +/** Set this to 1 if your IEEE 802.15.4 interface can calculate and check the + * CRC in hardware. This means TX packets get 2 zero bytes added on transmission + * which are to be filled with the CRC. + */ +#ifndef LWIP_6LOWPAN_802154_HW_CRC +#define LWIP_6LOWPAN_802154_HW_CRC 0 +#endif + +/** If LWIP_6LOWPAN_802154_HW_CRC==0, this can override the default slow + * implementation of the CRC used for 6LoWPAN over IEEE 802.15.4 (which uses + * a shift register). + */ +#ifndef LWIP_6LOWPAN_CALC_CRC +#define LWIP_6LOWPAN_CALC_CRC(buf, len) lowpan6_calc_crc(buf, len) +#endif + +/** Debug level for 6LoWPAN in general */ +#ifndef LWIP_LOWPAN6_DEBUG +#define LWIP_LOWPAN6_DEBUG LWIP_DBG_OFF +#endif + +/** Debug level for 6LoWPAN over IEEE 802.15.4 */ +#ifndef LWIP_LOWPAN6_802154_DEBUG +#define LWIP_LOWPAN6_802154_DEBUG LWIP_DBG_OFF +#endif + +/** LWIP_LOWPAN6_IP_COMPRESSED_DEBUG: enable compressed IP frame + * output debugging + */ +#ifndef LWIP_LOWPAN6_IP_COMPRESSED_DEBUG +#define LWIP_LOWPAN6_IP_COMPRESSED_DEBUG LWIP_DBG_OFF +#endif + +/** LWIP_LOWPAN6_DECOMPRESSION_DEBUG: enable decompression debug output + */ +#ifndef LWIP_LOWPAN6_DECOMPRESSION_DEBUG +#define LWIP_LOWPAN6_DECOMPRESSION_DEBUG LWIP_DBG_OFF +#endif + +/** LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG: enable decompressed IP frame + * output debugging */ +#ifndef LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG +#define LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG LWIP_DBG_OFF +#endif + +/** LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS: + * Currently, the linux kernel driver for 6lowpan sets/clears a bit in + * the address, depending on the BD address (either public or not). + * Might not be RFC7668 conform, so you may select to do that (=1) or + * not (=0) */ +#ifndef LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS +#define LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS 1 +#endif + + +#endif /* LWIP_HDR_LOWPAN6_OPTS_H */ diff --git a/middleware/lwip/src/include/netif/ppp/ccp.h b/middleware/lwip/src/include/netif/ppp/ccp.h new file mode 100644 index 0000000..b228522 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/ccp.h @@ -0,0 +1,164 @@ +/* + * ccp.h - Definitions for PPP Compression Control Protocol. + * + * Copyright (c) 1994-2002 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: ccp.h,v 1.12 2004/11/04 10:02:26 paulus Exp $ + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && CCP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef CCP_H +#define CCP_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * CCP codes. + */ + +#define CCP_CONFREQ 1 +#define CCP_CONFACK 2 +#define CCP_TERMREQ 5 +#define CCP_TERMACK 6 +#define CCP_RESETREQ 14 +#define CCP_RESETACK 15 + +/* + * Max # bytes for a CCP option + */ + +#define CCP_MAX_OPTION_LENGTH 32 + +/* + * Parts of a CCP packet. + */ + +#define CCP_CODE(dp) ((dp)[0]) +#define CCP_ID(dp) ((dp)[1]) +#define CCP_LENGTH(dp) (((dp)[2] << 8) + (dp)[3]) +#define CCP_HDRLEN 4 + +#define CCP_OPT_CODE(dp) ((dp)[0]) +#define CCP_OPT_LENGTH(dp) ((dp)[1]) +#define CCP_OPT_MINLEN 2 + +#if BSDCOMPRESS_SUPPORT +/* + * Definitions for BSD-Compress. + */ + +#define CI_BSD_COMPRESS 21 /* config. option for BSD-Compress */ +#define CILEN_BSD_COMPRESS 3 /* length of config. option */ + +/* Macros for handling the 3rd byte of the BSD-Compress config option. */ +#define BSD_NBITS(x) ((x) & 0x1F) /* number of bits requested */ +#define BSD_VERSION(x) ((x) >> 5) /* version of option format */ +#define BSD_CURRENT_VERSION 1 /* current version number */ +#define BSD_MAKE_OPT(v, n) (((v) << 5) | (n)) + +#define BSD_MIN_BITS 9 /* smallest code size supported */ +#define BSD_MAX_BITS 15 /* largest code size supported */ +#endif /* BSDCOMPRESS_SUPPORT */ + +#if DEFLATE_SUPPORT +/* + * Definitions for Deflate. + */ + +#define CI_DEFLATE 26 /* config option for Deflate */ +#define CI_DEFLATE_DRAFT 24 /* value used in original draft RFC */ +#define CILEN_DEFLATE 4 /* length of its config option */ + +#define DEFLATE_MIN_SIZE 9 +#define DEFLATE_MAX_SIZE 15 +#define DEFLATE_METHOD_VAL 8 +#define DEFLATE_SIZE(x) (((x) >> 4) + 8) +#define DEFLATE_METHOD(x) ((x) & 0x0F) +#define DEFLATE_MAKE_OPT(w) ((((w) - 8) << 4) + DEFLATE_METHOD_VAL) +#define DEFLATE_CHK_SEQUENCE 0 +#endif /* DEFLATE_SUPPORT */ + +#if MPPE_SUPPORT +/* + * Definitions for MPPE. + */ + +#define CI_MPPE 18 /* config option for MPPE */ +#define CILEN_MPPE 6 /* length of config option */ +#endif /* MPPE_SUPPORT */ + +#if PREDICTOR_SUPPORT +/* + * Definitions for other, as yet unsupported, compression methods. + */ + +#define CI_PREDICTOR_1 1 /* config option for Predictor-1 */ +#define CILEN_PREDICTOR_1 2 /* length of its config option */ +#define CI_PREDICTOR_2 2 /* config option for Predictor-2 */ +#define CILEN_PREDICTOR_2 2 /* length of its config option */ +#endif /* PREDICTOR_SUPPORT */ + +typedef struct ccp_options { +#if DEFLATE_SUPPORT + unsigned int deflate :1; /* do Deflate? */ + unsigned int deflate_correct :1; /* use correct code for deflate? */ + unsigned int deflate_draft :1; /* use draft RFC code for deflate? */ +#endif /* DEFLATE_SUPPORT */ +#if BSDCOMPRESS_SUPPORT + unsigned int bsd_compress :1; /* do BSD Compress? */ +#endif /* BSDCOMPRESS_SUPPORT */ +#if PREDICTOR_SUPPORT + unsigned int predictor_1 :1; /* do Predictor-1? */ + unsigned int predictor_2 :1; /* do Predictor-2? */ +#endif /* PREDICTOR_SUPPORT */ + +#if MPPE_SUPPORT + u8_t mppe; /* MPPE bitfield */ +#endif /* MPPE_SUPPORT */ +#if BSDCOMPRESS_SUPPORT + u_short bsd_bits; /* # bits/code for BSD Compress */ +#endif /* BSDCOMPRESS_SUPPORT */ +#if DEFLATE_SUPPORT + u_short deflate_size; /* lg(window size) for Deflate */ +#endif /* DEFLATE_SUPPORT */ + u8_t method; /* code for chosen compression method */ +} ccp_options; + +extern const struct protent ccp_protent; + +void ccp_resetrequest(ppp_pcb *pcb); /* Issue a reset-request. */ + +#ifdef __cplusplus +} +#endif + +#endif /* CCP_H */ +#endif /* PPP_SUPPORT && CCP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/chap-md5.h b/middleware/lwip/src/include/netif/ppp/chap-md5.h new file mode 100644 index 0000000..eb0269f --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/chap-md5.h @@ -0,0 +1,36 @@ +/* + * chap-md5.h - New CHAP/MD5 implementation. + * + * Copyright (c) 2003 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && CHAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +extern const struct chap_digest_type md5_digest; + +#endif /* PPP_SUPPORT && CHAP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/chap-new.h b/middleware/lwip/src/include/netif/ppp/chap-new.h new file mode 100644 index 0000000..2d8cd9c --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/chap-new.h @@ -0,0 +1,200 @@ +/* + * chap-new.c - New CHAP implementation. + * + * Copyright (c) 2003 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && CHAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef CHAP_H +#define CHAP_H + +#include "ppp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * CHAP packets begin with a standard header with code, id, len (2 bytes). + */ +#define CHAP_HDRLEN 4 + +/* + * Values for the code field. + */ +#define CHAP_CHALLENGE 1 +#define CHAP_RESPONSE 2 +#define CHAP_SUCCESS 3 +#define CHAP_FAILURE 4 + +/* + * CHAP digest codes. + */ +#define CHAP_MD5 5 +#if MSCHAP_SUPPORT +#define CHAP_MICROSOFT 0x80 +#define CHAP_MICROSOFT_V2 0x81 +#endif /* MSCHAP_SUPPORT */ + +/* + * Semi-arbitrary limits on challenge and response fields. + */ +#define MAX_CHALLENGE_LEN 64 +#define MAX_RESPONSE_LEN 64 + +/* + * These limits apply to challenge and response packets we send. + * The +4 is the +1 that we actually need rounded up. + */ +#define CHAL_MAX_PKTLEN (PPP_HDRLEN + CHAP_HDRLEN + 4 + MAX_CHALLENGE_LEN + MAXNAMELEN) +#define RESP_MAX_PKTLEN (PPP_HDRLEN + CHAP_HDRLEN + 4 + MAX_RESPONSE_LEN + MAXNAMELEN) + +/* bitmask of supported algorithms */ +#if MSCHAP_SUPPORT +#define MDTYPE_MICROSOFT_V2 0x1 +#define MDTYPE_MICROSOFT 0x2 +#endif /* MSCHAP_SUPPORT */ +#define MDTYPE_MD5 0x4 +#define MDTYPE_NONE 0 + +#if MSCHAP_SUPPORT +/* Return the digest alg. ID for the most preferred digest type. */ +#define CHAP_DIGEST(mdtype) \ + ((mdtype) & MDTYPE_MD5)? CHAP_MD5: \ + ((mdtype) & MDTYPE_MICROSOFT_V2)? CHAP_MICROSOFT_V2: \ + ((mdtype) & MDTYPE_MICROSOFT)? CHAP_MICROSOFT: \ + 0 +#else /* !MSCHAP_SUPPORT */ +#define CHAP_DIGEST(mdtype) \ + ((mdtype) & MDTYPE_MD5)? CHAP_MD5: \ + 0 +#endif /* MSCHAP_SUPPORT */ + +/* Return the bit flag (lsb set) for our most preferred digest type. */ +#define CHAP_MDTYPE(mdtype) ((mdtype) ^ ((mdtype) - 1)) & (mdtype) + +/* Return the bit flag for a given digest algorithm ID. */ +#if MSCHAP_SUPPORT +#define CHAP_MDTYPE_D(digest) \ + ((digest) == CHAP_MICROSOFT_V2)? MDTYPE_MICROSOFT_V2: \ + ((digest) == CHAP_MICROSOFT)? MDTYPE_MICROSOFT: \ + ((digest) == CHAP_MD5)? MDTYPE_MD5: \ + 0 +#else /* !MSCHAP_SUPPORT */ +#define CHAP_MDTYPE_D(digest) \ + ((digest) == CHAP_MD5)? MDTYPE_MD5: \ + 0 +#endif /* MSCHAP_SUPPORT */ + +/* Can we do the requested digest? */ +#if MSCHAP_SUPPORT +#define CHAP_CANDIGEST(mdtype, digest) \ + ((digest) == CHAP_MICROSOFT_V2)? (mdtype) & MDTYPE_MICROSOFT_V2: \ + ((digest) == CHAP_MICROSOFT)? (mdtype) & MDTYPE_MICROSOFT: \ + ((digest) == CHAP_MD5)? (mdtype) & MDTYPE_MD5: \ + 0 +#else /* !MSCHAP_SUPPORT */ +#define CHAP_CANDIGEST(mdtype, digest) \ + ((digest) == CHAP_MD5)? (mdtype) & MDTYPE_MD5: \ + 0 +#endif /* MSCHAP_SUPPORT */ + +/* + * The code for each digest type has to supply one of these. + */ +struct chap_digest_type { + int code; + +#if PPP_SERVER + /* + * Note: challenge and response arguments below are formatted as + * a length byte followed by the actual challenge/response data. + */ + void (*generate_challenge)(ppp_pcb *pcb, unsigned char *challenge); + int (*verify_response)(ppp_pcb *pcb, int id, const char *name, + const unsigned char *secret, int secret_len, + const unsigned char *challenge, const unsigned char *response, + char *message, int message_space); +#endif /* PPP_SERVER */ + void (*make_response)(ppp_pcb *pcb, unsigned char *response, int id, const char *our_name, + const unsigned char *challenge, const char *secret, int secret_len, + unsigned char *priv); + int (*check_success)(ppp_pcb *pcb, unsigned char *pkt, int len, unsigned char *priv); + void (*handle_failure)(ppp_pcb *pcb, unsigned char *pkt, int len); +}; + +/* + * Each interface is described by chap structure. + */ +#if CHAP_SUPPORT +typedef struct chap_client_state { + u8_t flags; + const char *name; + const struct chap_digest_type *digest; + unsigned char priv[64]; /* private area for digest's use */ +} chap_client_state; + +#if PPP_SERVER +typedef struct chap_server_state { + u8_t flags; + u8_t id; + const char *name; + const struct chap_digest_type *digest; + int challenge_xmits; + int challenge_pktlen; + unsigned char challenge[CHAL_MAX_PKTLEN]; +} chap_server_state; +#endif /* PPP_SERVER */ +#endif /* CHAP_SUPPORT */ + +#if 0 /* UNUSED */ +/* Hook for a plugin to validate CHAP challenge */ +extern int (*chap_verify_hook)(char *name, char *ourname, int id, + const struct chap_digest_type *digest, + unsigned char *challenge, unsigned char *response, + char *message, int message_space); +#endif /* UNUSED */ + +#if PPP_SERVER +/* Called by authentication code to start authenticating the peer. */ +extern void chap_auth_peer(ppp_pcb *pcb, const char *our_name, int digest_code); +#endif /* PPP_SERVER */ + +/* Called by auth. code to start authenticating us to the peer. */ +extern void chap_auth_with_peer(ppp_pcb *pcb, const char *our_name, int digest_code); + +/* Represents the CHAP protocol to the main pppd code */ +extern const struct protent chap_protent; + +#ifdef __cplusplus +} +#endif + +#endif /* CHAP_H */ +#endif /* PPP_SUPPORT && CHAP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/chap_ms.h b/middleware/lwip/src/include/netif/ppp/chap_ms.h new file mode 100644 index 0000000..0795291 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/chap_ms.h @@ -0,0 +1,44 @@ +/* + * chap_ms.h - Challenge Handshake Authentication Protocol definitions. + * + * Copyright (c) 1995 Eric Rosenquist. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: chap_ms.h,v 1.13 2004/11/15 22:13:26 paulus Exp $ + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && MSCHAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef CHAPMS_INCLUDE +#define CHAPMS_INCLUDE + +extern const struct chap_digest_type chapms_digest; +extern const struct chap_digest_type chapms2_digest; + +#endif /* CHAPMS_INCLUDE */ + +#endif /* PPP_SUPPORT && MSCHAP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/eap.h b/middleware/lwip/src/include/netif/ppp/eap.h new file mode 100644 index 0000000..32434ed --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/eap.h @@ -0,0 +1,169 @@ +/* + * eap.h - Extensible Authentication Protocol for PPP (RFC 2284) + * + * Copyright (c) 2001 by Sun Microsystems, Inc. + * All rights reserved. + * + * Non-exclusive rights to redistribute, modify, translate, and use + * this software in source and binary forms, in whole or in part, is + * hereby granted, provided that the above copyright notice is + * duplicated in any source form, and that neither the name of the + * copyright holder nor the author is used to endorse or promote + * products derived from this software. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + * + * Original version by James Carlson + * + * $Id: eap.h,v 1.2 2003/06/11 23:56:26 paulus Exp $ + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && EAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef PPP_EAP_H +#define PPP_EAP_H + +#include "ppp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Packet header = Code, id, length. + */ +#define EAP_HEADERLEN 4 + + +/* EAP message codes. */ +#define EAP_REQUEST 1 +#define EAP_RESPONSE 2 +#define EAP_SUCCESS 3 +#define EAP_FAILURE 4 + +/* EAP types */ +#define EAPT_IDENTITY 1 +#define EAPT_NOTIFICATION 2 +#define EAPT_NAK 3 /* (response only) */ +#define EAPT_MD5CHAP 4 +#define EAPT_OTP 5 /* One-Time Password; RFC 1938 */ +#define EAPT_TOKEN 6 /* Generic Token Card */ +/* 7 and 8 are unassigned. */ +#define EAPT_RSA 9 /* RSA Public Key Authentication */ +#define EAPT_DSS 10 /* DSS Unilateral */ +#define EAPT_KEA 11 /* KEA */ +#define EAPT_KEA_VALIDATE 12 /* KEA-VALIDATE */ +#define EAPT_TLS 13 /* EAP-TLS */ +#define EAPT_DEFENDER 14 /* Defender Token (AXENT) */ +#define EAPT_W2K 15 /* Windows 2000 EAP */ +#define EAPT_ARCOT 16 /* Arcot Systems */ +#define EAPT_CISCOWIRELESS 17 /* Cisco Wireless */ +#define EAPT_NOKIACARD 18 /* Nokia IP smart card */ +#define EAPT_SRP 19 /* Secure Remote Password */ +/* 20 is deprecated */ + +/* EAP SRP-SHA1 Subtypes */ +#define EAPSRP_CHALLENGE 1 /* Request 1 - Challenge */ +#define EAPSRP_CKEY 1 /* Response 1 - Client Key */ +#define EAPSRP_SKEY 2 /* Request 2 - Server Key */ +#define EAPSRP_CVALIDATOR 2 /* Response 2 - Client Validator */ +#define EAPSRP_SVALIDATOR 3 /* Request 3 - Server Validator */ +#define EAPSRP_ACK 3 /* Response 3 - final ack */ +#define EAPSRP_LWRECHALLENGE 4 /* Req/resp 4 - Lightweight rechal */ + +#define SRPVAL_EBIT 0x00000001 /* Use shared key for ECP */ + +#define SRP_PSEUDO_ID "pseudo_" +#define SRP_PSEUDO_LEN 7 + +#define MD5_SIGNATURE_SIZE 16 +#define EAP_MIN_CHALLENGE_LENGTH 17 +#define EAP_MAX_CHALLENGE_LENGTH 24 +#define EAP_MIN_MAX_POWER_OF_TWO_CHALLENGE_LENGTH 3 /* 2^3-1 = 7, 17+7 = 24 */ + +#define EAP_STATES \ + "Initial", "Pending", "Closed", "Listen", "Identify", \ + "SRP1", "SRP2", "SRP3", "MD5Chall", "Open", "SRP4", "BadAuth" + +#define eap_client_active(pcb) ((pcb)->eap.es_client.ea_state == eapListen) +#if PPP_SERVER +#define eap_server_active(pcb) \ + ((pcb)->eap.es_server.ea_state >= eapIdentify && \ + (pcb)->eap.es_server.ea_state <= eapMD5Chall) +#endif /* PPP_SERVER */ + +/* + * Complete EAP state for one PPP session. + */ +enum eap_state_code { + eapInitial = 0, /* No EAP authentication yet requested */ + eapPending, /* Waiting for LCP (no timer) */ + eapClosed, /* Authentication not in use */ + eapListen, /* Client ready (and timer running) */ + eapIdentify, /* EAP Identify sent */ + eapSRP1, /* Sent EAP SRP-SHA1 Subtype 1 */ + eapSRP2, /* Sent EAP SRP-SHA1 Subtype 2 */ + eapSRP3, /* Sent EAP SRP-SHA1 Subtype 3 */ + eapMD5Chall, /* Sent MD5-Challenge */ + eapOpen, /* Completed authentication */ + eapSRP4, /* Sent EAP SRP-SHA1 Subtype 4 */ + eapBadAuth /* Failed authentication */ +}; + +struct eap_auth { + const char *ea_name; /* Our name */ + char ea_peer[MAXNAMELEN +1]; /* Peer's name */ + void *ea_session; /* Authentication library linkage */ + u_char *ea_skey; /* Shared encryption key */ + u_short ea_namelen; /* Length of our name */ + u_short ea_peerlen; /* Length of peer's name */ + enum eap_state_code ea_state; + u_char ea_id; /* Current id */ + u_char ea_requests; /* Number of Requests sent/received */ + u_char ea_responses; /* Number of Responses */ + u_char ea_type; /* One of EAPT_* */ + u32_t ea_keyflags; /* SRP shared key usage flags */ +}; + +#ifndef EAP_MAX_CHALLENGE_LENGTH +#define EAP_MAX_CHALLENGE_LENGTH 24 +#endif +typedef struct eap_state { + struct eap_auth es_client; /* Client (authenticatee) data */ +#if PPP_SERVER + struct eap_auth es_server; /* Server (authenticator) data */ +#endif /* PPP_SERVER */ + int es_savedtime; /* Saved timeout */ + int es_rechallenge; /* EAP rechallenge interval */ + int es_lwrechallenge; /* SRP lightweight rechallenge inter */ + u8_t es_usepseudo; /* Use SRP Pseudonym if offered one */ + int es_usedpseudo; /* Set if we already sent PN */ + int es_challen; /* Length of challenge string */ + u_char es_challenge[EAP_MAX_CHALLENGE_LENGTH]; +} eap_state; + +/* + * Timeouts. + */ +#if 0 /* moved to ppp_opts.h */ +#define EAP_DEFTIMEOUT 3 /* Timeout (seconds) for rexmit */ +#define EAP_DEFTRANSMITS 10 /* max # times to transmit */ +#define EAP_DEFREQTIME 20 /* Time to wait for peer request */ +#define EAP_DEFALLOWREQ 20 /* max # times to accept requests */ +#endif /* moved to ppp_opts.h */ + +void eap_authwithpeer(ppp_pcb *pcb, const char *localname); +void eap_authpeer(ppp_pcb *pcb, const char *localname); + +extern const struct protent eap_protent; + +#ifdef __cplusplus +} +#endif + +#endif /* PPP_EAP_H */ + +#endif /* PPP_SUPPORT && EAP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/ecp.h b/middleware/lwip/src/include/netif/ppp/ecp.h new file mode 100644 index 0000000..d8808c3 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/ecp.h @@ -0,0 +1,62 @@ +/* + * ecp.h - Definitions for PPP Encryption Control Protocol. + * + * Copyright (c) 2002 Google, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: ecp.h,v 1.2 2003/01/10 07:12:36 fcusack Exp $ + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && ECP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef ECP_H +#define ECP_H + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct ecp_options { + bool required; /* Is ECP required? */ + unsigned enctype; /* Encryption type */ +} ecp_options; + +extern fsm ecp_fsm[]; +extern ecp_options ecp_wantoptions[]; +extern ecp_options ecp_gotoptions[]; +extern ecp_options ecp_allowoptions[]; +extern ecp_options ecp_hisoptions[]; + +extern const struct protent ecp_protent; + +#ifdef __cplusplus +} +#endif + +#endif /* ECP_H */ +#endif /* PPP_SUPPORT && ECP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/eui64.h b/middleware/lwip/src/include/netif/ppp/eui64.h new file mode 100644 index 0000000..5adeb48 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/eui64.h @@ -0,0 +1,102 @@ +/* + * eui64.h - EUI64 routines for IPv6CP. + * + * Copyright (c) 1999 Tommi Komulainen. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Tommi Komulainen + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: eui64.h,v 1.6 2002/12/04 23:03:32 paulus Exp $ +*/ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPP_IPV6_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef EUI64_H +#define EUI64_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * @todo: + * + * Maybe this should be done by processing struct in6_addr directly... + */ +typedef union +{ + u8_t e8[8]; + u16_t e16[4]; + u32_t e32[2]; +} eui64_t; + +#define eui64_iszero(e) (((e).e32[0] | (e).e32[1]) == 0) +#define eui64_equals(e, o) (((e).e32[0] == (o).e32[0]) && \ + ((e).e32[1] == (o).e32[1])) +#define eui64_zero(e) (e).e32[0] = (e).e32[1] = 0; + +#define eui64_copy(s, d) memcpy(&(d), &(s), sizeof(eui64_t)) + +#define eui64_magic(e) do { \ + (e).e32[0] = magic(); \ + (e).e32[1] = magic(); \ + (e).e8[0] &= ~2; \ + } while (0) +#define eui64_magic_nz(x) do { \ + eui64_magic(x); \ + } while (eui64_iszero(x)) +#define eui64_magic_ne(x, y) do { \ + eui64_magic(x); \ + } while (eui64_equals(x, y)) + +#define eui64_get(ll, cp) do { \ + eui64_copy((*cp), (ll)); \ + (cp) += sizeof(eui64_t); \ + } while (0) + +#define eui64_put(ll, cp) do { \ + eui64_copy((ll), (*cp)); \ + (cp) += sizeof(eui64_t); \ + } while (0) + +#define eui64_set32(e, l) do { \ + (e).e32[0] = 0; \ + (e).e32[1] = lwip_htonl(l); \ + } while (0) +#define eui64_setlo32(e, l) eui64_set32(e, l) + +char *eui64_ntoa(eui64_t); /* Returns ascii representation of id */ + +#ifdef __cplusplus +} +#endif + +#endif /* EUI64_H */ +#endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/fsm.h b/middleware/lwip/src/include/netif/ppp/fsm.h new file mode 100644 index 0000000..8dec700 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/fsm.h @@ -0,0 +1,182 @@ +/* + * fsm.h - {Link, IP} Control Protocol Finite State Machine definitions. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: fsm.h,v 1.10 2004/11/13 02:28:15 paulus Exp $ + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef FSM_H +#define FSM_H + +#include "ppp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Packet header = Code, id, length. + */ +#define HEADERLEN 4 + + +/* + * CP (LCP, IPCP, etc.) codes. + */ +#define CONFREQ 1 /* Configuration Request */ +#define CONFACK 2 /* Configuration Ack */ +#define CONFNAK 3 /* Configuration Nak */ +#define CONFREJ 4 /* Configuration Reject */ +#define TERMREQ 5 /* Termination Request */ +#define TERMACK 6 /* Termination Ack */ +#define CODEREJ 7 /* Code Reject */ + + +/* + * Each FSM is described by an fsm structure and fsm callbacks. + */ +typedef struct fsm { + ppp_pcb *pcb; /* PPP Interface */ + const struct fsm_callbacks *callbacks; /* Callback routines */ + const char *term_reason; /* Reason for closing protocol */ + u8_t seen_ack; /* Have received valid Ack/Nak/Rej to Req */ + /* -- This is our only flag, we might use u_int :1 if we have more flags */ + u16_t protocol; /* Data Link Layer Protocol field value */ + u8_t state; /* State */ + u8_t flags; /* Contains option bits */ + u8_t id; /* Current id */ + u8_t reqid; /* Current request id */ + u8_t retransmits; /* Number of retransmissions left */ + u8_t nakloops; /* Number of nak loops since last ack */ + u8_t rnakloops; /* Number of naks received */ + u8_t maxnakloops; /* Maximum number of nak loops tolerated + (necessary because IPCP require a custom large max nak loops value) */ + u8_t term_reason_len; /* Length of term_reason */ +} fsm; + + +typedef struct fsm_callbacks { + void (*resetci) /* Reset our Configuration Information */ + (fsm *); + int (*cilen) /* Length of our Configuration Information */ + (fsm *); + void (*addci) /* Add our Configuration Information */ + (fsm *, u_char *, int *); + int (*ackci) /* ACK our Configuration Information */ + (fsm *, u_char *, int); + int (*nakci) /* NAK our Configuration Information */ + (fsm *, u_char *, int, int); + int (*rejci) /* Reject our Configuration Information */ + (fsm *, u_char *, int); + int (*reqci) /* Request peer's Configuration Information */ + (fsm *, u_char *, int *, int); + void (*up) /* Called when fsm reaches PPP_FSM_OPENED state */ + (fsm *); + void (*down) /* Called when fsm leaves PPP_FSM_OPENED state */ + (fsm *); + void (*starting) /* Called when we want the lower layer */ + (fsm *); + void (*finished) /* Called when we don't want the lower layer */ + (fsm *); + void (*protreject) /* Called when Protocol-Reject received */ + (int); + void (*retransmit) /* Retransmission is necessary */ + (fsm *); + int (*extcode) /* Called when unknown code received */ + (fsm *, int, int, u_char *, int); + const char *proto_name; /* String name for protocol (for messages) */ +} fsm_callbacks; + + +/* + * Link states. + */ +#define PPP_FSM_INITIAL 0 /* Down, hasn't been opened */ +#define PPP_FSM_STARTING 1 /* Down, been opened */ +#define PPP_FSM_CLOSED 2 /* Up, hasn't been opened */ +#define PPP_FSM_STOPPED 3 /* Open, waiting for down event */ +#define PPP_FSM_CLOSING 4 /* Terminating the connection, not open */ +#define PPP_FSM_STOPPING 5 /* Terminating, but open */ +#define PPP_FSM_REQSENT 6 /* We've sent a Config Request */ +#define PPP_FSM_ACKRCVD 7 /* We've received a Config Ack */ +#define PPP_FSM_ACKSENT 8 /* We've sent a Config Ack */ +#define PPP_FSM_OPENED 9 /* Connection available */ + + +/* + * Flags - indicate options controlling FSM operation + */ +#define OPT_PASSIVE 1 /* Don't die if we don't get a response */ +#define OPT_RESTART 2 /* Treat 2nd OPEN as DOWN, UP */ +#define OPT_SILENT 4 /* Wait for peer to speak first */ + + +/* + * Timeouts. + */ +#if 0 /* moved to ppp_opts.h */ +#define DEFTIMEOUT 3 /* Timeout time in seconds */ +#define DEFMAXTERMREQS 2 /* Maximum Terminate-Request transmissions */ +#define DEFMAXCONFREQS 10 /* Maximum Configure-Request transmissions */ +#define DEFMAXNAKLOOPS 5 /* Maximum number of nak loops */ +#endif /* moved to ppp_opts.h */ + + +/* + * Prototypes + */ +void fsm_init(fsm *f); +void fsm_lowerup(fsm *f); +void fsm_lowerdown(fsm *f); +void fsm_open(fsm *f); +void fsm_close(fsm *f, const char *reason); +void fsm_input(fsm *f, u_char *inpacket, int l); +void fsm_protreject(fsm *f); +void fsm_sdata(fsm *f, u_char code, u_char id, const u_char *data, int datalen); + +#ifdef __cplusplus +} +#endif + +#endif /* FSM_H */ +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/ipcp.h b/middleware/lwip/src/include/netif/ppp/ipcp.h new file mode 100644 index 0000000..32fdd1c --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/ipcp.h @@ -0,0 +1,134 @@ +/* + * ipcp.h - IP Control Protocol definitions. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: ipcp.h,v 1.14 2002/12/04 23:03:32 paulus Exp $ + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPP_IPV4_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef IPCP_H +#define IPCP_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Options. + */ +#define CI_ADDRS 1 /* IP Addresses */ +#if VJ_SUPPORT +#define CI_COMPRESSTYPE 2 /* Compression Type */ +#endif /* VJ_SUPPORT */ +#define CI_ADDR 3 + +#if LWIP_DNS +#define CI_MS_DNS1 129 /* Primary DNS value */ +#define CI_MS_DNS2 131 /* Secondary DNS value */ +#endif /* LWIP_DNS */ +#if 0 /* UNUSED - WINS */ +#define CI_MS_WINS1 130 /* Primary WINS value */ +#define CI_MS_WINS2 132 /* Secondary WINS value */ +#endif /* UNUSED - WINS */ + +#if VJ_SUPPORT +#define MAX_STATES 16 /* from slcompress.h */ + +#define IPCP_VJMODE_OLD 1 /* "old" mode (option # = 0x0037) */ +#define IPCP_VJMODE_RFC1172 2 /* "old-rfc"mode (option # = 0x002d) */ +#define IPCP_VJMODE_RFC1332 3 /* "new-rfc"mode (option # = 0x002d, */ + /* maxslot and slot number compression) */ + +#define IPCP_VJ_COMP 0x002d /* current value for VJ compression option*/ +#define IPCP_VJ_COMP_OLD 0x0037 /* "old" (i.e, broken) value for VJ */ + /* compression option*/ +#endif /* VJ_SUPPORT */ + +typedef struct ipcp_options { + unsigned int neg_addr :1; /* Negotiate IP Address? */ + unsigned int old_addrs :1; /* Use old (IP-Addresses) option? */ + unsigned int req_addr :1; /* Ask peer to send IP address? */ +#if 0 /* UNUSED */ + unsigned int default_route :1; /* Assign default route through interface? */ + unsigned int replace_default_route :1; /* Replace default route through interface? */ +#endif /* UNUSED */ +#if 0 /* UNUSED - PROXY ARP */ + unsigned int proxy_arp :1; /* Make proxy ARP entry for peer? */ +#endif /* UNUSED - PROXY ARP */ +#if VJ_SUPPORT + unsigned int neg_vj :1; /* Van Jacobson Compression? */ + unsigned int old_vj :1; /* use old (short) form of VJ option? */ + unsigned int cflag :1; +#endif /* VJ_SUPPORT */ + unsigned int accept_local :1; /* accept peer's value for ouraddr */ + unsigned int accept_remote :1; /* accept peer's value for hisaddr */ +#if LWIP_DNS + unsigned int req_dns1 :1; /* Ask peer to send primary DNS address? */ + unsigned int req_dns2 :1; /* Ask peer to send secondary DNS address? */ +#endif /* LWIP_DNS */ + + u32_t ouraddr, hisaddr; /* Addresses in NETWORK BYTE ORDER */ +#if LWIP_DNS + u32_t dnsaddr[2]; /* Primary and secondary MS DNS entries */ +#endif /* LWIP_DNS */ +#if 0 /* UNUSED - WINS */ + u32_t winsaddr[2]; /* Primary and secondary MS WINS entries */ +#endif /* UNUSED - WINS */ + +#if VJ_SUPPORT + u16_t vj_protocol; /* protocol value to use in VJ option */ + u8_t maxslotindex; /* values for RFC1332 VJ compression neg. */ +#endif /* VJ_SUPPORT */ +} ipcp_options; + +#if 0 /* UNUSED, already defined by lwIP */ +char *ip_ntoa (u32_t); +#endif /* UNUSED, already defined by lwIP */ + +extern const struct protent ipcp_protent; + +#ifdef __cplusplus +} +#endif + +#endif /* IPCP_H */ +#endif /* PPP_SUPPORT && PPP_IPV4_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/ipv6cp.h b/middleware/lwip/src/include/netif/ppp/ipv6cp.h new file mode 100644 index 0000000..9099973 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/ipv6cp.h @@ -0,0 +1,191 @@ +/* + * ipv6cp.h - PPP IPV6 Control Protocol. + * + * Copyright (c) 1999 Tommi Komulainen. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Tommi Komulainen + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +/* Original version, based on RFC2023 : + + Copyright (c) 1995, 1996, 1997 Francis.Dupont@inria.fr, INRIA Rocquencourt, + Alain.Durand@imag.fr, IMAG, + Jean-Luc.Richier@imag.fr, IMAG-LSR. + + Copyright (c) 1998, 1999 Francis.Dupont@inria.fr, GIE DYADE, + Alain.Durand@imag.fr, IMAG, + Jean-Luc.Richier@imag.fr, IMAG-LSR. + + Ce travail a été fait au sein du GIE DYADE (Groupement d'Intérêt + Économique ayant pour membres BULL S.A. et l'INRIA). + + Ce logiciel informatique est disponible aux conditions + usuelles dans la recherche, c'est-à-dire qu'il peut + être utilisé, copié, modifié, distribué à l'unique + condition que ce texte soit conservé afin que + l'origine de ce logiciel soit reconnue. + + Le nom de l'Institut National de Recherche en Informatique + et en Automatique (INRIA), de l'IMAG, ou d'une personne morale + ou physique ayant participé à l'élaboration de ce logiciel ne peut + être utilisé sans son accord préalable explicite. + + Ce logiciel est fourni tel quel sans aucune garantie, + support ou responsabilité d'aucune sorte. + Ce logiciel est dérivé de sources d'origine + "University of California at Berkeley" et + "Digital Equipment Corporation" couvertes par des copyrights. + + L'Institut d'Informatique et de Mathématiques Appliquées de Grenoble (IMAG) + est une fédération d'unités mixtes de recherche du CNRS, de l'Institut National + Polytechnique de Grenoble et de l'Université Joseph Fourier regroupant + sept laboratoires dont le laboratoire Logiciels, Systèmes, Réseaux (LSR). + + This work has been done in the context of GIE DYADE (joint R & D venture + between BULL S.A. and INRIA). + + This software is available with usual "research" terms + with the aim of retain credits of the software. + Permission to use, copy, modify and distribute this software for any + purpose and without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies, + and the name of INRIA, IMAG, or any contributor not be used in advertising + or publicity pertaining to this material without the prior explicit + permission. The software is provided "as is" without any + warranties, support or liabilities of any kind. + This software is derived from source code from + "University of California at Berkeley" and + "Digital Equipment Corporation" protected by copyrights. + + Grenoble's Institute of Computer Science and Applied Mathematics (IMAG) + is a federation of seven research units funded by the CNRS, National + Polytechnic Institute of Grenoble and University Joseph Fourier. + The research unit in Software, Systems, Networks (LSR) is member of IMAG. +*/ + +/* + * Derived from : + * + * + * ipcp.h - IP Control Protocol definitions. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: ipv6cp.h,v 1.7 2002/12/04 23:03:32 paulus Exp $ + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPP_IPV6_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef IPV6CP_H +#define IPV6CP_H + +#include "eui64.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Options. + */ +#define CI_IFACEID 1 /* Interface Identifier */ +#ifdef IPV6CP_COMP +#define CI_COMPRESSTYPE 2 /* Compression Type */ +#endif /* IPV6CP_COMP */ + +/* No compression types yet defined. + *#define IPV6CP_COMP 0x004f + */ +typedef struct ipv6cp_options { + unsigned int neg_ifaceid :1; /* Negotiate interface identifier? */ + unsigned int req_ifaceid :1; /* Ask peer to send interface identifier? */ + unsigned int accept_local :1; /* accept peer's value for iface id? */ + unsigned int opt_local :1; /* ourtoken set by option */ + unsigned int opt_remote :1; /* histoken set by option */ + unsigned int use_ip :1; /* use IP as interface identifier */ +#if 0 + unsigned int use_persistent :1; /* use uniquely persistent value for address */ +#endif +#ifdef IPV6CP_COMP + unsigned int neg_vj :1; /* Van Jacobson Compression? */ +#endif /* IPV6CP_COMP */ + +#ifdef IPV6CP_COMP + u_short vj_protocol; /* protocol value to use in VJ option */ +#endif /* IPV6CP_COMP */ + eui64_t ourid, hisid; /* Interface identifiers */ +} ipv6cp_options; + +extern const struct protent ipv6cp_protent; + +#ifdef __cplusplus +} +#endif + +#endif /* IPV6CP_H */ +#endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/lcp.h b/middleware/lwip/src/include/netif/ppp/lcp.h new file mode 100644 index 0000000..18ad1cb --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/lcp.h @@ -0,0 +1,179 @@ +/* + * lcp.h - Link Control Protocol definitions. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: lcp.h,v 1.20 2004/11/14 22:53:42 carlsonj Exp $ + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef LCP_H +#define LCP_H + +#include "ppp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Options. + */ +#define CI_VENDOR 0 /* Vendor Specific */ +#define CI_MRU 1 /* Maximum Receive Unit */ +#define CI_ASYNCMAP 2 /* Async Control Character Map */ +#define CI_AUTHTYPE 3 /* Authentication Type */ +#define CI_QUALITY 4 /* Quality Protocol */ +#define CI_MAGICNUMBER 5 /* Magic Number */ +#define CI_PCOMPRESSION 7 /* Protocol Field Compression */ +#define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */ +#define CI_FCSALTERN 9 /* FCS-Alternatives */ +#define CI_SDP 10 /* Self-Describing-Pad */ +#define CI_NUMBERED 11 /* Numbered-Mode */ +#define CI_CALLBACK 13 /* callback */ +#define CI_MRRU 17 /* max reconstructed receive unit; multilink */ +#define CI_SSNHF 18 /* short sequence numbers for multilink */ +#define CI_EPDISC 19 /* endpoint discriminator */ +#define CI_MPPLUS 22 /* Multi-Link-Plus-Procedure */ +#define CI_LDISC 23 /* Link-Discriminator */ +#define CI_LCPAUTH 24 /* LCP Authentication */ +#define CI_COBS 25 /* Consistent Overhead Byte Stuffing */ +#define CI_PREFELIS 26 /* Prefix Elision */ +#define CI_MPHDRFMT 27 /* MP Header Format */ +#define CI_I18N 28 /* Internationalization */ +#define CI_SDL 29 /* Simple Data Link */ + +/* + * LCP-specific packet types (code numbers). + */ +#define PROTREJ 8 /* Protocol Reject */ +#define ECHOREQ 9 /* Echo Request */ +#define ECHOREP 10 /* Echo Reply */ +#define DISCREQ 11 /* Discard Request */ +#define IDENTIF 12 /* Identification */ +#define TIMEREM 13 /* Time Remaining */ + +/* Value used as data for CI_CALLBACK option */ +#define CBCP_OPT 6 /* Use callback control protocol */ + +#if 0 /* moved to ppp_opts.h */ +#define DEFMRU 1500 /* Try for this */ +#define MINMRU 128 /* No MRUs below this */ +#define MAXMRU 16384 /* Normally limit MRU to this */ +#endif /* moved to ppp_opts.h */ + +/* An endpoint discriminator, used with multilink. */ +#define MAX_ENDP_LEN 20 /* maximum length of discriminator value */ +struct epdisc { + unsigned char class_; /* -- The word "class" is reserved in C++. */ + unsigned char length; + unsigned char value[MAX_ENDP_LEN]; +}; + +/* + * The state of options is described by an lcp_options structure. + */ +typedef struct lcp_options { + unsigned int passive :1; /* Don't die if we don't get a response */ + unsigned int silent :1; /* Wait for the other end to start first */ +#if 0 /* UNUSED */ + unsigned int restart :1; /* Restart vs. exit after close */ +#endif /* UNUSED */ + unsigned int neg_mru :1; /* Negotiate the MRU? */ + unsigned int neg_asyncmap :1; /* Negotiate the async map? */ +#if PAP_SUPPORT + unsigned int neg_upap :1; /* Ask for UPAP authentication? */ +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + unsigned int neg_chap :1; /* Ask for CHAP authentication? */ +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + unsigned int neg_eap :1; /* Ask for EAP authentication? */ +#endif /* EAP_SUPPORT */ + unsigned int neg_magicnumber :1; /* Ask for magic number? */ + unsigned int neg_pcompression :1; /* HDLC Protocol Field Compression? */ + unsigned int neg_accompression :1; /* HDLC Address/Control Field Compression? */ +#if LQR_SUPPORT + unsigned int neg_lqr :1; /* Negotiate use of Link Quality Reports */ +#endif /* LQR_SUPPORT */ + unsigned int neg_cbcp :1; /* Negotiate use of CBCP */ +#ifdef HAVE_MULTILINK + unsigned int neg_mrru :1; /* negotiate multilink MRRU */ +#endif /* HAVE_MULTILINK */ + unsigned int neg_ssnhf :1; /* negotiate short sequence numbers */ + unsigned int neg_endpoint :1; /* negotiate endpoint discriminator */ + + u16_t mru; /* Value of MRU */ +#ifdef HAVE_MULTILINK + u16_t mrru; /* Value of MRRU, and multilink enable */ +#endif /* MULTILINK */ +#if CHAP_SUPPORT + u8_t chap_mdtype; /* which MD types (hashing algorithm) */ +#endif /* CHAP_SUPPORT */ + u32_t asyncmap; /* Value of async map */ + u32_t magicnumber; + u8_t numloops; /* Number of loops during magic number neg. */ +#if LQR_SUPPORT + u32_t lqr_period; /* Reporting period for LQR 1/100ths second */ +#endif /* LQR_SUPPORT */ + struct epdisc endpoint; /* endpoint discriminator */ +} lcp_options; + +void lcp_open(ppp_pcb *pcb); +void lcp_close(ppp_pcb *pcb, const char *reason); +void lcp_lowerup(ppp_pcb *pcb); +void lcp_lowerdown(ppp_pcb *pcb); +void lcp_sprotrej(ppp_pcb *pcb, u_char *p, int len); /* send protocol reject */ + +extern const struct protent lcp_protent; + +#if 0 /* moved to ppp_opts.h */ +/* Default number of times we receive our magic number from the peer + before deciding the link is looped-back. */ +#define DEFLOOPBACKFAIL 10 +#endif /* moved to ppp_opts.h */ + +#ifdef __cplusplus +} +#endif + +#endif /* LCP_H */ +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/magic.h b/middleware/lwip/src/include/netif/ppp/magic.h new file mode 100644 index 0000000..12a002c --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/magic.h @@ -0,0 +1,130 @@ +/* + * magic.h - PPP Magic Number definitions. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: magic.h,v 1.5 2003/06/11 23:56:26 paulus Exp $ + */ +/***************************************************************************** +* randm.h - Random number generator header file. +* +* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. +* Copyright (c) 1998 Global Election Systems Inc. +* +* The authors hereby grant permission to use, copy, modify, distribute, +* and license this software and its documentation for any purpose, provided +* that existing copyright notices are retained in all copies and that this +* notice and the following disclaimer are included verbatim in any +* distributions. No written agreement, license, or royalty fee is required +* for any of the authorized uses. +* +* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR +* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +* +****************************************************************************** +* REVISION HISTORY +* +* 03-01-01 Marc Boucher +* Ported to lwIP. +* 98-05-29 Guy Lancaster , Global Election Systems Inc. +* Extracted from avos. +*****************************************************************************/ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef MAGIC_H +#define MAGIC_H + +#ifdef __cplusplus +extern "C" { +#endif + +/*********************** +*** PUBLIC FUNCTIONS *** +***********************/ + +/* + * Initialize the random number generator. + */ +void magic_init(void); + +/* + * Randomize our random seed value. To be called for truly random events + * such as user operations and network traffic. + */ +void magic_randomize(void); + +/* + * Return a new random number. + */ +u32_t magic(void); /* Returns the next magic number */ + +/* + * Fill buffer with random bytes + * + * Use the random pool to generate random data. This degrades to pseudo + * random when used faster than randomness is supplied using magic_churnrand(). + * Thus it's important to make sure that the results of this are not + * published directly because one could predict the next result to at + * least some degree. Also, it's important to get a good seed before + * the first use. + */ +void magic_random_bytes(unsigned char *buf, u32_t buf_len); + +/* + * Return a new random number between 0 and (2^pow)-1 included. + */ +u32_t magic_pow(u8_t pow); + +#ifdef __cplusplus +} +#endif + +#endif /* MAGIC_H */ + +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/mppe.h b/middleware/lwip/src/include/netif/ppp/mppe.h new file mode 100644 index 0000000..5de1128 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/mppe.h @@ -0,0 +1,181 @@ +/* + * mppe.h - Definitions for MPPE + * + * Copyright (c) 2008 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && MPPE_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef MPPE_H +#define MPPE_H + +#include "netif/ppp/pppcrypt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define MPPE_PAD 4 /* MPPE growth per frame */ +#define MPPE_MAX_KEY_LEN 16 /* largest key length (128-bit) */ + +/* option bits for ccp_options.mppe */ +#define MPPE_OPT_40 0x01 /* 40 bit */ +#define MPPE_OPT_128 0x02 /* 128 bit */ +#define MPPE_OPT_STATEFUL 0x04 /* stateful mode */ +/* unsupported opts */ +#define MPPE_OPT_56 0x08 /* 56 bit */ +#define MPPE_OPT_MPPC 0x10 /* MPPC compression */ +#define MPPE_OPT_D 0x20 /* Unknown */ +#define MPPE_OPT_UNSUPPORTED (MPPE_OPT_56|MPPE_OPT_MPPC|MPPE_OPT_D) +#define MPPE_OPT_UNKNOWN 0x40 /* Bits !defined in RFC 3078 were set */ + +/* + * This is not nice ... the alternative is a bitfield struct though. + * And unfortunately, we cannot share the same bits for the option + * names above since C and H are the same bit. We could do a u_int32 + * but then we have to do a lwip_htonl() all the time and/or we still need + * to know which octet is which. + */ +#define MPPE_C_BIT 0x01 /* MPPC */ +#define MPPE_D_BIT 0x10 /* Obsolete, usage unknown */ +#define MPPE_L_BIT 0x20 /* 40-bit */ +#define MPPE_S_BIT 0x40 /* 128-bit */ +#define MPPE_M_BIT 0x80 /* 56-bit, not supported */ +#define MPPE_H_BIT 0x01 /* Stateless (in a different byte) */ + +/* Does not include H bit; used for least significant octet only. */ +#define MPPE_ALL_BITS (MPPE_D_BIT|MPPE_L_BIT|MPPE_S_BIT|MPPE_M_BIT|MPPE_H_BIT) + +/* Build a CI from mppe opts (see RFC 3078) */ +#define MPPE_OPTS_TO_CI(opts, ci) \ + do { \ + u_char *ptr = ci; /* u_char[4] */ \ + \ + /* H bit */ \ + if (opts & MPPE_OPT_STATEFUL) \ + *ptr++ = 0x0; \ + else \ + *ptr++ = MPPE_H_BIT; \ + *ptr++ = 0; \ + *ptr++ = 0; \ + \ + /* S,L bits */ \ + *ptr = 0; \ + if (opts & MPPE_OPT_128) \ + *ptr |= MPPE_S_BIT; \ + if (opts & MPPE_OPT_40) \ + *ptr |= MPPE_L_BIT; \ + /* M,D,C bits not supported */ \ + } while (/* CONSTCOND */ 0) + +/* The reverse of the above */ +#define MPPE_CI_TO_OPTS(ci, opts) \ + do { \ + const u_char *ptr = ci; /* u_char[4] */ \ + \ + opts = 0; \ + \ + /* H bit */ \ + if (!(ptr[0] & MPPE_H_BIT)) \ + opts |= MPPE_OPT_STATEFUL; \ + \ + /* S,L bits */ \ + if (ptr[3] & MPPE_S_BIT) \ + opts |= MPPE_OPT_128; \ + if (ptr[3] & MPPE_L_BIT) \ + opts |= MPPE_OPT_40; \ + \ + /* M,D,C bits */ \ + if (ptr[3] & MPPE_M_BIT) \ + opts |= MPPE_OPT_56; \ + if (ptr[3] & MPPE_D_BIT) \ + opts |= MPPE_OPT_D; \ + if (ptr[3] & MPPE_C_BIT) \ + opts |= MPPE_OPT_MPPC; \ + \ + /* Other bits */ \ + if (ptr[0] & ~MPPE_H_BIT) \ + opts |= MPPE_OPT_UNKNOWN; \ + if (ptr[1] || ptr[2]) \ + opts |= MPPE_OPT_UNKNOWN; \ + if (ptr[3] & ~MPPE_ALL_BITS) \ + opts |= MPPE_OPT_UNKNOWN; \ + } while (/* CONSTCOND */ 0) + +/* Shared MPPE padding between MSCHAP and MPPE */ +#define SHA1_PAD_SIZE 40 + +static const u8_t mppe_sha1_pad1[SHA1_PAD_SIZE] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +}; +static const u8_t mppe_sha1_pad2[SHA1_PAD_SIZE] = { + 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, + 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, + 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, + 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2 +}; + +/* + * State for an MPPE (de)compressor. + */ +typedef struct ppp_mppe_state { + lwip_arc4_context arc4; + u8_t master_key[MPPE_MAX_KEY_LEN]; + u8_t session_key[MPPE_MAX_KEY_LEN]; + u8_t keylen; /* key length in bytes */ + /* NB: 128-bit == 16, 40-bit == 8! + * If we want to support 56-bit, the unit has to change to bits + */ + u8_t bits; /* MPPE control bits */ + u16_t ccount; /* 12-bit coherency count (seqno) */ + u16_t sanity_errors; /* take down LCP if too many */ + unsigned int stateful :1; /* stateful mode flag */ + unsigned int discard :1; /* stateful mode packet loss flag */ +} ppp_mppe_state; + +void mppe_set_key(ppp_pcb *pcb, ppp_mppe_state *state, u8_t *key); +void mppe_init(ppp_pcb *pcb, ppp_mppe_state *state, u8_t options); +void mppe_comp_reset(ppp_pcb *pcb, ppp_mppe_state *state); +err_t mppe_compress(ppp_pcb *pcb, ppp_mppe_state *state, struct pbuf **pb, u16_t protocol); +void mppe_decomp_reset(ppp_pcb *pcb, ppp_mppe_state *state); +err_t mppe_decompress(ppp_pcb *pcb, ppp_mppe_state *state, struct pbuf **pb); + +#ifdef __cplusplus +} +#endif + +#endif /* MPPE_H */ +#endif /* PPP_SUPPORT && MPPE_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/polarssl/arc4.h b/middleware/lwip/src/include/netif/ppp/polarssl/arc4.h new file mode 100644 index 0000000..4af724c --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/polarssl/arc4.h @@ -0,0 +1,81 @@ +/** + * \file arc4.h + * + * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine + * + * Copyright (C) 2009 Paul Bakker + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names of PolarSSL or XySSL nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "netif/ppp/ppp_opts.h" +#if LWIP_INCLUDED_POLARSSL_ARC4 + +#ifndef LWIP_INCLUDED_POLARSSL_ARC4_H +#define LWIP_INCLUDED_POLARSSL_ARC4_H + +/** + * \brief ARC4 context structure + */ +typedef struct +{ + int x; /*!< permutation index */ + int y; /*!< permutation index */ + unsigned char m[256]; /*!< permutation table */ +} +arc4_context; + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief ARC4 key schedule + * + * \param ctx ARC4 context to be initialized + * \param key the secret key + * \param keylen length of the key + */ +void arc4_setup( arc4_context *ctx, unsigned char *key, int keylen ); + +/** + * \brief ARC4 cipher function + * + * \param ctx ARC4 context + * \param buf buffer to be processed + * \param buflen amount of data in buf + */ +void arc4_crypt( arc4_context *ctx, unsigned char *buf, int buflen ); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_INCLUDED_POLARSSL_ARC4_H */ + +#endif /* LWIP_INCLUDED_POLARSSL_ARC4 */ diff --git a/middleware/lwip/src/include/netif/ppp/polarssl/des.h b/middleware/lwip/src/include/netif/ppp/polarssl/des.h new file mode 100644 index 0000000..e893890 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/polarssl/des.h @@ -0,0 +1,92 @@ +/** + * \file des.h + * + * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine + * + * Copyright (C) 2009 Paul Bakker + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names of PolarSSL or XySSL nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "netif/ppp/ppp_opts.h" +#if LWIP_INCLUDED_POLARSSL_DES + +#ifndef LWIP_INCLUDED_POLARSSL_DES_H +#define LWIP_INCLUDED_POLARSSL_DES_H + +#define DES_ENCRYPT 1 +#define DES_DECRYPT 0 + +/** + * \brief DES context structure + */ +typedef struct +{ + int mode; /*!< encrypt/decrypt */ + unsigned long sk[32]; /*!< DES subkeys */ +} +des_context; + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief DES key schedule (56-bit, encryption) + * + * \param ctx DES context to be initialized + * \param key 8-byte secret key + */ +void des_setkey_enc( des_context *ctx, unsigned char key[8] ); + +/** + * \brief DES key schedule (56-bit, decryption) + * + * \param ctx DES context to be initialized + * \param key 8-byte secret key + */ +void des_setkey_dec( des_context *ctx, unsigned char key[8] ); + +/** + * \brief DES-ECB block encryption/decryption + * + * \param ctx DES context + * \param input 64-bit input block + * \param output 64-bit output block + */ +void des_crypt_ecb( des_context *ctx, + const unsigned char input[8], + unsigned char output[8] ); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_INCLUDED_POLARSSL_DES_H */ + +#endif /* LWIP_INCLUDED_POLARSSL_DES */ diff --git a/middleware/lwip/src/include/netif/ppp/polarssl/md4.h b/middleware/lwip/src/include/netif/ppp/polarssl/md4.h new file mode 100644 index 0000000..5704456 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/polarssl/md4.h @@ -0,0 +1,97 @@ +/** + * \file md4.h + * + * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine + * + * Copyright (C) 2009 Paul Bakker + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names of PolarSSL or XySSL nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "netif/ppp/ppp_opts.h" +#if LWIP_INCLUDED_POLARSSL_MD4 + +#ifndef LWIP_INCLUDED_POLARSSL_MD4_H +#define LWIP_INCLUDED_POLARSSL_MD4_H + +/** + * \brief MD4 context structure + */ +typedef struct +{ + unsigned long total[2]; /*!< number of bytes processed */ + unsigned long state[4]; /*!< intermediate digest state */ + unsigned char buffer[64]; /*!< data block being processed */ +} +md4_context; + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief MD4 context setup + * + * \param ctx context to be initialized + */ +void md4_starts( md4_context *ctx ); + +/** + * \brief MD4 process buffer + * + * \param ctx MD4 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void md4_update( md4_context *ctx, const unsigned char *input, int ilen ); + +/** + * \brief MD4 final digest + * + * \param ctx MD4 context + * \param output MD4 checksum result + */ +void md4_finish( md4_context *ctx, unsigned char output[16] ); + +/** + * \brief Output = MD4( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output MD4 checksum result + */ +void md4( unsigned char *input, int ilen, unsigned char output[16] ); + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_INCLUDED_POLARSSL_MD4_H */ + +#endif /* LWIP_INCLUDED_POLARSSL_MD4 */ diff --git a/middleware/lwip/src/include/netif/ppp/polarssl/md5.h b/middleware/lwip/src/include/netif/ppp/polarssl/md5.h new file mode 100644 index 0000000..1244011 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/polarssl/md5.h @@ -0,0 +1,96 @@ +/** + * \file md5.h + * + * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine + * + * Copyright (C) 2009 Paul Bakker + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names of PolarSSL or XySSL nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "netif/ppp/ppp_opts.h" +#if LWIP_INCLUDED_POLARSSL_MD5 + +#ifndef LWIP_INCLUDED_POLARSSL_MD5_H +#define LWIP_INCLUDED_POLARSSL_MD5_H + +/** + * \brief MD5 context structure + */ +typedef struct +{ + unsigned long total[2]; /*!< number of bytes processed */ + unsigned long state[4]; /*!< intermediate digest state */ + unsigned char buffer[64]; /*!< data block being processed */ +} +md5_context; + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief MD5 context setup + * + * \param ctx context to be initialized + */ +void md5_starts( md5_context *ctx ); + +/** + * \brief MD5 process buffer + * + * \param ctx MD5 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void md5_update( md5_context *ctx, const unsigned char *input, int ilen ); + +/** + * \brief MD5 final digest + * + * \param ctx MD5 context + * \param output MD5 checksum result + */ +void md5_finish( md5_context *ctx, unsigned char output[16] ); + +/** + * \brief Output = MD5( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output MD5 checksum result + */ +void md5( unsigned char *input, int ilen, unsigned char output[16] ); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_INCLUDED_POLARSSL_MD5_H */ + +#endif /* LWIP_INCLUDED_POLARSSL_MD5 */ diff --git a/middleware/lwip/src/include/netif/ppp/polarssl/sha1.h b/middleware/lwip/src/include/netif/ppp/polarssl/sha1.h new file mode 100644 index 0000000..a4c53e0 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/polarssl/sha1.h @@ -0,0 +1,96 @@ +/** + * \file sha1.h + * + * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine + * + * Copyright (C) 2009 Paul Bakker + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names of PolarSSL or XySSL nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "netif/ppp/ppp_opts.h" +#if LWIP_INCLUDED_POLARSSL_SHA1 + +#ifndef LWIP_INCLUDED_POLARSSL_SHA1_H +#define LWIP_INCLUDED_POLARSSL_SHA1_H + +/** + * \brief SHA-1 context structure + */ +typedef struct +{ + unsigned long total[2]; /*!< number of bytes processed */ + unsigned long state[5]; /*!< intermediate digest state */ + unsigned char buffer[64]; /*!< data block being processed */ +} +sha1_context; + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief SHA-1 context setup + * + * \param ctx context to be initialized + */ +void sha1_starts( sha1_context *ctx ); + +/** + * \brief SHA-1 process buffer + * + * \param ctx SHA-1 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void sha1_update( sha1_context *ctx, const unsigned char *input, int ilen ); + +/** + * \brief SHA-1 final digest + * + * \param ctx SHA-1 context + * \param output SHA-1 checksum result + */ +void sha1_finish( sha1_context *ctx, unsigned char output[20] ); + +/** + * \brief Output = SHA-1( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output SHA-1 checksum result + */ +void sha1( unsigned char *input, int ilen, unsigned char output[20] ); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_INCLUDED_POLARSSL_SHA1_H */ + +#endif /* LWIP_INCLUDED_POLARSSL_SHA1 */ diff --git a/middleware/lwip/src/include/netif/ppp/ppp.h b/middleware/lwip/src/include/netif/ppp/ppp.h new file mode 100644 index 0000000..3d73c36 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/ppp.h @@ -0,0 +1,698 @@ +/***************************************************************************** +* ppp.h - Network Point to Point Protocol header file. +* +* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. +* portions Copyright (c) 1997 Global Election Systems Inc. +* +* The authors hereby grant permission to use, copy, modify, distribute, +* and license this software and its documentation for any purpose, provided +* that existing copyright notices are retained in all copies and that this +* notice and the following disclaimer are included verbatim in any +* distributions. No written agreement, license, or royalty fee is required +* for any of the authorized uses. +* +* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR +* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +* +****************************************************************************** +* REVISION HISTORY +* +* 03-01-01 Marc Boucher +* Ported to lwIP. +* 97-11-05 Guy Lancaster , Global Election Systems Inc. +* Original derived from BSD codes. +*****************************************************************************/ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef PPP_H +#define PPP_H + +#include "lwip/def.h" +#include "lwip/stats.h" +#include "lwip/mem.h" +#include "lwip/netif.h" +#include "lwip/sys.h" +#include "lwip/timeouts.h" +#if PPP_IPV6_SUPPORT +#include "lwip/ip6_addr.h" +#endif /* PPP_IPV6_SUPPORT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* Disable non-working or rarely used PPP feature, so rarely that we don't want to bloat ppp_opts.h with them */ +#ifndef PPP_OPTIONS +#define PPP_OPTIONS 0 +#endif + +#ifndef PPP_NOTIFY +#define PPP_NOTIFY 0 +#endif + +#ifndef PPP_REMOTENAME +#define PPP_REMOTENAME 0 +#endif + +#ifndef PPP_IDLETIMELIMIT +#define PPP_IDLETIMELIMIT 0 +#endif + +#ifndef PPP_LCP_ADAPTIVE +#define PPP_LCP_ADAPTIVE 0 +#endif + +#ifndef PPP_MAXCONNECT +#define PPP_MAXCONNECT 0 +#endif + +#ifndef PPP_ALLOWED_ADDRS +#define PPP_ALLOWED_ADDRS 0 +#endif + +#ifndef PPP_PROTOCOLNAME +#define PPP_PROTOCOLNAME 0 +#endif + +#ifndef PPP_STATS_SUPPORT +#define PPP_STATS_SUPPORT 0 +#endif + +#ifndef DEFLATE_SUPPORT +#define DEFLATE_SUPPORT 0 +#endif + +#ifndef BSDCOMPRESS_SUPPORT +#define BSDCOMPRESS_SUPPORT 0 +#endif + +#ifndef PREDICTOR_SUPPORT +#define PREDICTOR_SUPPORT 0 +#endif + +/************************* +*** PUBLIC DEFINITIONS *** +*************************/ + +/* + * The basic PPP frame. + */ +#define PPP_HDRLEN 4 /* octets for standard ppp header */ +#define PPP_FCSLEN 2 /* octets for FCS */ + +/* + * Values for phase. + */ +#define PPP_PHASE_DEAD 0 +#define PPP_PHASE_MASTER 1 +#define PPP_PHASE_HOLDOFF 2 +#define PPP_PHASE_INITIALIZE 3 +#define PPP_PHASE_SERIALCONN 4 +#define PPP_PHASE_DORMANT 5 +#define PPP_PHASE_ESTABLISH 6 +#define PPP_PHASE_AUTHENTICATE 7 +#define PPP_PHASE_CALLBACK 8 +#define PPP_PHASE_NETWORK 9 +#define PPP_PHASE_RUNNING 10 +#define PPP_PHASE_TERMINATE 11 +#define PPP_PHASE_DISCONNECT 12 + +/* Error codes. */ +#define PPPERR_NONE 0 /* No error. */ +#define PPPERR_PARAM 1 /* Invalid parameter. */ +#define PPPERR_OPEN 2 /* Unable to open PPP session. */ +#define PPPERR_DEVICE 3 /* Invalid I/O device for PPP. */ +#define PPPERR_ALLOC 4 /* Unable to allocate resources. */ +#define PPPERR_USER 5 /* User interrupt. */ +#define PPPERR_CONNECT 6 /* Connection lost. */ +#define PPPERR_AUTHFAIL 7 /* Failed authentication challenge. */ +#define PPPERR_PROTOCOL 8 /* Failed to meet protocol. */ +#define PPPERR_PEERDEAD 9 /* Connection timeout */ +#define PPPERR_IDLETIMEOUT 10 /* Idle Timeout */ +#define PPPERR_CONNECTTIME 11 /* Max connect time reached */ +#define PPPERR_LOOPBACK 12 /* Loopback detected */ + +/* Whether auth support is enabled at all */ +#define PPP_AUTH_SUPPORT (PAP_SUPPORT || CHAP_SUPPORT || EAP_SUPPORT) + +/************************ +*** PUBLIC DATA TYPES *** +************************/ + +/* + * Other headers require ppp_pcb definition for prototypes, but ppp_pcb + * require some structure definition from other headers as well, we are + * fixing the dependency loop here by declaring the ppp_pcb type then + * by including headers containing necessary struct definition for ppp_pcb + */ +typedef struct ppp_pcb_s ppp_pcb; + +/* Type definitions for BSD code. */ +#ifndef __u_char_defined +typedef unsigned long u_long; +typedef unsigned int u_int; +typedef unsigned short u_short; +typedef unsigned char u_char; +#endif + +#include "fsm.h" +#include "lcp.h" +#if CCP_SUPPORT +#include "ccp.h" +#endif /* CCP_SUPPORT */ +#if MPPE_SUPPORT +#include "mppe.h" +#endif /* MPPE_SUPPORT */ +#if PPP_IPV4_SUPPORT +#include "ipcp.h" +#endif /* PPP_IPV4_SUPPORT */ +#if PPP_IPV6_SUPPORT +#include "ipv6cp.h" +#endif /* PPP_IPV6_SUPPORT */ +#if PAP_SUPPORT +#include "upap.h" +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT +#include "chap-new.h" +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT +#include "eap.h" +#endif /* EAP_SUPPORT */ +#if VJ_SUPPORT +#include "vj.h" +#endif /* VJ_SUPPORT */ + +/* Link status callback function prototype */ +typedef void (*ppp_link_status_cb_fn)(ppp_pcb *pcb, int err_code, void *ctx); + +/* + * PPP configuration. + */ +typedef struct ppp_settings_s { + +#if PPP_SERVER && PPP_AUTH_SUPPORT + unsigned int auth_required :1; /* Peer is required to authenticate */ + unsigned int null_login :1; /* Username of "" and a password of "" are acceptable */ +#endif /* PPP_SERVER && PPP_AUTH_SUPPORT */ +#if PPP_REMOTENAME + unsigned int explicit_remote :1; /* remote_name specified with remotename opt */ +#endif /* PPP_REMOTENAME */ +#if PAP_SUPPORT + unsigned int refuse_pap :1; /* Don't proceed auth. with PAP */ +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + unsigned int refuse_chap :1; /* Don't proceed auth. with CHAP */ +#endif /* CHAP_SUPPORT */ +#if MSCHAP_SUPPORT + unsigned int refuse_mschap :1; /* Don't proceed auth. with MS-CHAP */ + unsigned int refuse_mschap_v2 :1; /* Don't proceed auth. with MS-CHAPv2 */ +#endif /* MSCHAP_SUPPORT */ +#if EAP_SUPPORT + unsigned int refuse_eap :1; /* Don't proceed auth. with EAP */ +#endif /* EAP_SUPPORT */ +#if LWIP_DNS + unsigned int usepeerdns :1; /* Ask peer for DNS adds */ +#endif /* LWIP_DNS */ + unsigned int persist :1; /* Persist mode, always try to open the connection */ +#if PRINTPKT_SUPPORT + unsigned int hide_password :1; /* Hide password in dumped packets */ +#endif /* PRINTPKT_SUPPORT */ + unsigned int noremoteip :1; /* Let him have no IP address */ + unsigned int lax_recv :1; /* accept control chars in asyncmap */ + unsigned int noendpoint :1; /* don't send/accept endpoint discriminator */ +#if PPP_LCP_ADAPTIVE + unsigned int lcp_echo_adaptive :1; /* request echo only if the link was idle */ +#endif /* PPP_LCP_ADAPTIVE */ +#if MPPE_SUPPORT + unsigned int require_mppe :1; /* Require MPPE (Microsoft Point to Point Encryption) */ + unsigned int refuse_mppe_40 :1; /* Allow MPPE 40-bit mode? */ + unsigned int refuse_mppe_128 :1; /* Allow MPPE 128-bit mode? */ + unsigned int refuse_mppe_stateful :1; /* Allow MPPE stateful mode? */ +#endif /* MPPE_SUPPORT */ + + u16_t listen_time; /* time to listen first (ms), waiting for peer to send LCP packet */ + +#if PPP_IDLETIMELIMIT + u16_t idle_time_limit; /* Disconnect if idle for this many seconds */ +#endif /* PPP_IDLETIMELIMIT */ +#if PPP_MAXCONNECT + u32_t maxconnect; /* Maximum connect time (seconds) */ +#endif /* PPP_MAXCONNECT */ + +#if PPP_AUTH_SUPPORT + /* auth data */ + const char *user; /* Username for PAP */ + const char *passwd; /* Password for PAP, secret for CHAP */ +#if PPP_REMOTENAME + char remote_name[MAXNAMELEN + 1]; /* Peer's name for authentication */ +#endif /* PPP_REMOTENAME */ + +#if PAP_SUPPORT + u8_t pap_timeout_time; /* Timeout (seconds) for auth-req retrans. */ + u8_t pap_max_transmits; /* Number of auth-reqs sent */ +#if PPP_SERVER + u8_t pap_req_timeout; /* Time to wait for auth-req from peer */ +#endif /* PPP_SERVER */ +#endif /* PAP_SUPPPORT */ + +#if CHAP_SUPPORT + u8_t chap_timeout_time; /* Timeout (seconds) for retransmitting req */ + u8_t chap_max_transmits; /* max # times to send challenge */ +#if PPP_SERVER + u8_t chap_rechallenge_time; /* Time to wait for auth-req from peer */ +#endif /* PPP_SERVER */ +#endif /* CHAP_SUPPPORT */ + +#if EAP_SUPPORT + u8_t eap_req_time; /* Time to wait (for retransmit/fail) */ + u8_t eap_allow_req; /* Max Requests allowed */ +#if PPP_SERVER + u8_t eap_timeout_time; /* Time to wait (for retransmit/fail) */ + u8_t eap_max_transmits; /* Max Requests allowed */ +#endif /* PPP_SERVER */ +#endif /* EAP_SUPPORT */ + +#endif /* PPP_AUTH_SUPPORT */ + + u8_t fsm_timeout_time; /* Timeout time in seconds */ + u8_t fsm_max_conf_req_transmits; /* Maximum Configure-Request transmissions */ + u8_t fsm_max_term_transmits; /* Maximum Terminate-Request transmissions */ + u8_t fsm_max_nak_loops; /* Maximum number of nak loops tolerated */ + + u8_t lcp_loopbackfail; /* Number of times we receive our magic number from the peer + before deciding the link is looped-back. */ + u8_t lcp_echo_interval; /* Interval between LCP echo-requests */ + u8_t lcp_echo_fails; /* Tolerance to unanswered echo-requests */ + +} ppp_settings; + +#if PPP_SERVER +struct ppp_addrs { +#if PPP_IPV4_SUPPORT + ip4_addr_t our_ipaddr, his_ipaddr, netmask; +#if LWIP_DNS + ip4_addr_t dns1, dns2; +#endif /* LWIP_DNS */ +#endif /* PPP_IPV4_SUPPORT */ +#if PPP_IPV6_SUPPORT + ip6_addr_t our6_ipaddr, his6_ipaddr; +#endif /* PPP_IPV6_SUPPORT */ +}; +#endif /* PPP_SERVER */ + +/* + * PPP interface control block. + */ +struct ppp_pcb_s { + ppp_settings settings; + const struct link_callbacks *link_cb; + void *link_ctx_cb; + void (*link_status_cb)(ppp_pcb *pcb, int err_code, void *ctx); /* Status change callback */ +#if PPP_NOTIFY_PHASE + void (*notify_phase_cb)(ppp_pcb *pcb, u8_t phase, void *ctx); /* Notify phase callback */ +#endif /* PPP_NOTIFY_PHASE */ + void *ctx_cb; /* Callbacks optional pointer */ + struct netif *netif; /* PPP interface */ + u8_t phase; /* where the link is at */ + u8_t err_code; /* Code indicating why interface is down. */ + + /* flags */ +#if PPP_IPV4_SUPPORT + unsigned int ask_for_local :1; /* request our address from peer */ + unsigned int ipcp_is_open :1; /* haven't called np_finished() */ + unsigned int ipcp_is_up :1; /* have called ipcp_up() */ + unsigned int if4_up :1; /* True when the IPv4 interface is up. */ +#if 0 /* UNUSED - PROXY ARP */ + unsigned int proxy_arp_set :1; /* Have created proxy arp entry */ +#endif /* UNUSED - PROXY ARP */ +#endif /* PPP_IPV4_SUPPORT */ +#if PPP_IPV6_SUPPORT + unsigned int ipv6cp_is_up :1; /* have called ip6cp_up() */ + unsigned int if6_up :1; /* True when the IPv6 interface is up. */ +#endif /* PPP_IPV6_SUPPORT */ + unsigned int lcp_echo_timer_running :1; /* set if a timer is running */ +#if VJ_SUPPORT + unsigned int vj_enabled :1; /* Flag indicating VJ compression enabled. */ +#endif /* VJ_SUPPORT */ +#if CCP_SUPPORT + unsigned int ccp_all_rejected :1; /* we rejected all peer's options */ +#endif /* CCP_SUPPORT */ +#if MPPE_SUPPORT + unsigned int mppe_keys_set :1; /* Have the MPPE keys been set? */ +#endif /* MPPE_SUPPORT */ + +#if PPP_AUTH_SUPPORT + /* auth data */ +#if PPP_SERVER && defined(HAVE_MULTILINK) + char peer_authname[MAXNAMELEN + 1]; /* The name by which the peer authenticated itself to us. */ +#endif /* PPP_SERVER && defined(HAVE_MULTILINK) */ + u16_t auth_pending; /* Records which authentication operations haven't completed yet. */ + u16_t auth_done; /* Records which authentication operations have been completed. */ + +#if PAP_SUPPORT + upap_state upap; /* PAP data */ +#endif /* PAP_SUPPORT */ + +#if CHAP_SUPPORT + chap_client_state chap_client; /* CHAP client data */ +#if PPP_SERVER + chap_server_state chap_server; /* CHAP server data */ +#endif /* PPP_SERVER */ +#endif /* CHAP_SUPPORT */ + +#if EAP_SUPPORT + eap_state eap; /* EAP data */ +#endif /* EAP_SUPPORT */ +#endif /* PPP_AUTH_SUPPORT */ + + fsm lcp_fsm; /* LCP fsm structure */ + lcp_options lcp_wantoptions; /* Options that we want to request */ + lcp_options lcp_gotoptions; /* Options that peer ack'd */ + lcp_options lcp_allowoptions; /* Options we allow peer to request */ + lcp_options lcp_hisoptions; /* Options that we ack'd */ + u16_t peer_mru; /* currently negotiated peer MRU */ + u8_t lcp_echos_pending; /* Number of outstanding echo msgs */ + u8_t lcp_echo_number; /* ID number of next echo frame */ + + u8_t num_np_open; /* Number of network protocols which we have opened. */ + u8_t num_np_up; /* Number of network protocols which have come up. */ + +#if VJ_SUPPORT + struct vjcompress vj_comp; /* Van Jacobson compression header. */ +#endif /* VJ_SUPPORT */ + +#if CCP_SUPPORT + fsm ccp_fsm; /* CCP fsm structure */ + ccp_options ccp_wantoptions; /* what to request the peer to use */ + ccp_options ccp_gotoptions; /* what the peer agreed to do */ + ccp_options ccp_allowoptions; /* what we'll agree to do */ + ccp_options ccp_hisoptions; /* what we agreed to do */ + u8_t ccp_localstate; /* Local state (mainly for handling reset-reqs and reset-acks). */ + u8_t ccp_receive_method; /* Method chosen on receive path */ + u8_t ccp_transmit_method; /* Method chosen on transmit path */ +#if MPPE_SUPPORT + ppp_mppe_state mppe_comp; /* MPPE "compressor" structure */ + ppp_mppe_state mppe_decomp; /* MPPE "decompressor" structure */ +#endif /* MPPE_SUPPORT */ +#endif /* CCP_SUPPORT */ + +#if PPP_IPV4_SUPPORT + fsm ipcp_fsm; /* IPCP fsm structure */ + ipcp_options ipcp_wantoptions; /* Options that we want to request */ + ipcp_options ipcp_gotoptions; /* Options that peer ack'd */ + ipcp_options ipcp_allowoptions; /* Options we allow peer to request */ + ipcp_options ipcp_hisoptions; /* Options that we ack'd */ +#endif /* PPP_IPV4_SUPPORT */ + +#if PPP_IPV6_SUPPORT + fsm ipv6cp_fsm; /* IPV6CP fsm structure */ + ipv6cp_options ipv6cp_wantoptions; /* Options that we want to request */ + ipv6cp_options ipv6cp_gotoptions; /* Options that peer ack'd */ + ipv6cp_options ipv6cp_allowoptions; /* Options we allow peer to request */ + ipv6cp_options ipv6cp_hisoptions; /* Options that we ack'd */ +#endif /* PPP_IPV6_SUPPORT */ +}; + +/************************ + *** PUBLIC FUNCTIONS *** + ************************/ + +/* + * WARNING: For multi-threads environment, all ppp_set_* functions most + * only be called while the PPP is in the dead phase (i.e. disconnected). + */ + +#if PPP_AUTH_SUPPORT +/* + * Set PPP authentication. + * + * Warning: Using PPPAUTHTYPE_ANY might have security consequences. + * RFC 1994 says: + * + * In practice, within or associated with each PPP server, there is a + * database which associates "user" names with authentication + * information ("secrets"). It is not anticipated that a particular + * named user would be authenticated by multiple methods. This would + * make the user vulnerable to attacks which negotiate the least secure + * method from among a set (such as PAP rather than CHAP). If the same + * secret was used, PAP would reveal the secret to be used later with + * CHAP. + * + * Instead, for each user name there should be an indication of exactly + * one method used to authenticate that user name. If a user needs to + * make use of different authentication methods under different + * circumstances, then distinct user names SHOULD be employed, each of + * which identifies exactly one authentication method. + * + * Default is none auth type, unset (NULL) user and passwd. + */ +#define PPPAUTHTYPE_NONE 0x00 +#define PPPAUTHTYPE_PAP 0x01 +#define PPPAUTHTYPE_CHAP 0x02 +#define PPPAUTHTYPE_MSCHAP 0x04 +#define PPPAUTHTYPE_MSCHAP_V2 0x08 +#define PPPAUTHTYPE_EAP 0x10 +#define PPPAUTHTYPE_ANY 0xff +void ppp_set_auth(ppp_pcb *pcb, u8_t authtype, const char *user, const char *passwd); + +/* + * If set, peer is required to authenticate. This is mostly necessary for PPP server support. + * + * Default is false. + */ +#define ppp_set_auth_required(ppp, boolval) (ppp->settings.auth_required = boolval) +#endif /* PPP_AUTH_SUPPORT */ + +#if PPP_IPV4_SUPPORT +/* + * Set PPP interface "our" and "his" IPv4 addresses. This is mostly necessary for PPP server + * support but it can also be used on a PPP link where each side choose its own IP address. + * + * Default is unset (0.0.0.0). + */ +#define ppp_set_ipcp_ouraddr(ppp, addr) do { ppp->ipcp_wantoptions.ouraddr = ip4_addr_get_u32(addr); \ + ppp->ask_for_local = ppp->ipcp_wantoptions.ouraddr != 0; } while(0) +#define ppp_set_ipcp_hisaddr(ppp, addr) (ppp->ipcp_wantoptions.hisaddr = ip4_addr_get_u32(addr)) +#if LWIP_DNS +/* + * Set DNS server addresses that are sent if the peer asks for them. This is mostly necessary + * for PPP server support. + * + * Default is unset (0.0.0.0). + */ +#define ppp_set_ipcp_dnsaddr(ppp, index, addr) (ppp->ipcp_allowoptions.dnsaddr[index] = ip4_addr_get_u32(addr)) + +/* + * If set, we ask the peer for up to 2 DNS server addresses. Received DNS server addresses are + * registered using the dns_setserver() function. + * + * Default is false. + */ +#define ppp_set_usepeerdns(ppp, boolval) (ppp->settings.usepeerdns = boolval) +#endif /* LWIP_DNS */ +#endif /* PPP_IPV4_SUPPORT */ + +#if MPPE_SUPPORT +/* Disable MPPE (Microsoft Point to Point Encryption). This parameter is exclusive. */ +#define PPP_MPPE_DISABLE 0x00 +/* Require the use of MPPE (Microsoft Point to Point Encryption). */ +#define PPP_MPPE_ENABLE 0x01 +/* Allow MPPE to use stateful mode. Stateless mode is still attempted first. */ +#define PPP_MPPE_ALLOW_STATEFUL 0x02 +/* Refuse the use of MPPE with 40-bit encryption. Conflict with PPP_MPPE_REFUSE_128. */ +#define PPP_MPPE_REFUSE_40 0x04 +/* Refuse the use of MPPE with 128-bit encryption. Conflict with PPP_MPPE_REFUSE_40. */ +#define PPP_MPPE_REFUSE_128 0x08 +/* + * Set MPPE configuration + * + * Default is disabled. + */ +void ppp_set_mppe(ppp_pcb *pcb, u8_t flags); +#endif /* MPPE_SUPPORT */ + +/* + * Wait for up to intval milliseconds for a valid PPP packet from the peer. + * At the end of this time, or when a valid PPP packet is received from the + * peer, we commence negotiation by sending our first LCP packet. + * + * Default is 0. + */ +#define ppp_set_listen_time(ppp, intval) (ppp->settings.listen_time = intval) + +/* + * If set, we will attempt to initiate a connection but if no reply is received from + * the peer, we will then just wait passively for a valid LCP packet from the peer. + * + * Default is false. + */ +#define ppp_set_passive(ppp, boolval) (ppp->lcp_wantoptions.passive = boolval) + +/* + * If set, we will not transmit LCP packets to initiate a connection until a valid + * LCP packet is received from the peer. This is what we usually call the server mode. + * + * Default is false. + */ +#define ppp_set_silent(ppp, boolval) (ppp->lcp_wantoptions.silent = boolval) + +/* + * If set, enable protocol field compression negotiation in both the receive and + * the transmit direction. + * + * Default is true. + */ +#define ppp_set_neg_pcomp(ppp, boolval) (ppp->lcp_wantoptions.neg_pcompression = \ + ppp->lcp_allowoptions.neg_pcompression = boolval) + +/* + * If set, enable Address/Control compression in both the receive and the transmit + * direction. + * + * Default is true. + */ +#define ppp_set_neg_accomp(ppp, boolval) (ppp->lcp_wantoptions.neg_accompression = \ + ppp->lcp_allowoptions.neg_accompression = boolval) + +/* + * If set, enable asyncmap negotiation. Otherwise forcing all control characters to + * be escaped for both the transmit and the receive direction. + * + * Default is true. + */ +#define ppp_set_neg_asyncmap(ppp, boolval) (ppp->lcp_wantoptions.neg_asyncmap = \ + ppp->lcp_allowoptions.neg_asyncmap = boolval) + +/* + * This option sets the Async-Control-Character-Map (ACCM) for this end of the link. + * The ACCM is a set of 32 bits, one for each of the ASCII control characters with + * values from 0 to 31, where a 1 bit indicates that the corresponding control + * character should not be used in PPP packets sent to this system. The map is + * an unsigned 32 bits integer where the least significant bit (00000001) represents + * character 0 and the most significant bit (80000000) represents character 31. + * We will then ask the peer to send these characters as a 2-byte escape sequence. + * + * Default is 0. + */ +#define ppp_set_asyncmap(ppp, intval) (ppp->lcp_wantoptions.asyncmap = intval) + +/* + * Set a PPP interface as the default network interface + * (used to output all packets for which no specific route is found). + */ +#define ppp_set_default(ppp) netif_set_default(ppp->netif) + +#if PPP_NOTIFY_PHASE +/* + * Set a PPP notify phase callback. + * + * This can be used for example to set a LED pattern depending on the + * current phase of the PPP session. + */ +typedef void (*ppp_notify_phase_cb_fn)(ppp_pcb *pcb, u8_t phase, void *ctx); +void ppp_set_notify_phase_callback(ppp_pcb *pcb, ppp_notify_phase_cb_fn notify_phase_cb); +#endif /* PPP_NOTIFY_PHASE */ + +/* + * Initiate a PPP connection. + * + * This can only be called if PPP is in the dead phase. + * + * Holdoff is the time to wait (in seconds) before initiating + * the connection. + * + * If this port connects to a modem, the modem connection must be + * established before calling this. + */ +err_t ppp_connect(ppp_pcb *pcb, u16_t holdoff); + +#if PPP_SERVER +/* + * Listen for an incoming PPP connection. + * + * This can only be called if PPP is in the dead phase. + * + * If this port connects to a modem, the modem connection must be + * established before calling this. + */ +err_t ppp_listen(ppp_pcb *pcb); +#endif /* PPP_SERVER */ + +/* + * Initiate the end of a PPP connection. + * Any outstanding packets in the queues are dropped. + * + * Setting nocarrier to 1 close the PPP connection without initiating the + * shutdown procedure. Always using nocarrier = 0 is still recommended, + * this is going to take a little longer time if your link is down, but + * is a safer choice for the PPP state machine. + * + * Return 0 on success, an error code on failure. + */ +err_t ppp_close(ppp_pcb *pcb, u8_t nocarrier); + +/* + * Release the control block. + * + * This can only be called if PPP is in the dead phase. + * + * You must use ppp_close() before if you wish to terminate + * an established PPP session. + * + * Return 0 on success, an error code on failure. + */ +err_t ppp_free(ppp_pcb *pcb); + +/* + * PPP IOCTL commands. + * + * Get the up status - 0 for down, non-zero for up. The argument must + * point to an int. + */ +#define PPPCTLG_UPSTATUS 0 + +/* + * Get the PPP error code. The argument must point to an int. + * Returns a PPPERR_* value. + */ +#define PPPCTLG_ERRCODE 1 + +/* + * Get the fd associated with a PPP over serial + */ +#define PPPCTLG_FD 2 + +/* + * Get and set parameters for the given connection. + * Return 0 on success, an error code on failure. + */ +err_t ppp_ioctl(ppp_pcb *pcb, u8_t cmd, void *arg); + +/* Get the PPP netif interface */ +#define ppp_netif(ppp) (ppp->netif) + +/* Set an lwIP-style status-callback for the selected PPP device */ +#define ppp_set_netif_statuscallback(ppp, status_cb) \ + netif_set_status_callback(ppp->netif, status_cb); + +/* Set an lwIP-style link-callback for the selected PPP device */ +#define ppp_set_netif_linkcallback(ppp, link_cb) \ + netif_set_link_callback(ppp->netif, link_cb); + +#ifdef __cplusplus +} +#endif + +#endif /* PPP_H */ + +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/ppp_impl.h b/middleware/lwip/src/include/netif/ppp/ppp_impl.h new file mode 100644 index 0000000..8d4d834 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/ppp_impl.h @@ -0,0 +1,729 @@ +/***************************************************************************** +* ppp.h - Network Point to Point Protocol header file. +* +* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. +* portions Copyright (c) 1997 Global Election Systems Inc. +* +* The authors hereby grant permission to use, copy, modify, distribute, +* and license this software and its documentation for any purpose, provided +* that existing copyright notices are retained in all copies and that this +* notice and the following disclaimer are included verbatim in any +* distributions. No written agreement, license, or royalty fee is required +* for any of the authorized uses. +* +* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR +* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +* +****************************************************************************** +* REVISION HISTORY +* +* 03-01-01 Marc Boucher +* Ported to lwIP. +* 97-11-05 Guy Lancaster , Global Election Systems Inc. +* Original derived from BSD codes. +*****************************************************************************/ +#ifndef LWIP_HDR_PPP_IMPL_H +#define LWIP_HDR_PPP_IMPL_H + +#include "netif/ppp/ppp_opts.h" + +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifdef PPP_INCLUDE_SETTINGS_HEADER +#include "ppp_settings.h" +#endif + +#include /* formats */ +#include +#include +#include /* strtol() */ + +#include "lwip/netif.h" +#include "lwip/def.h" +#include "lwip/timeouts.h" + +#include "ppp.h" +#include "pppdebug.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Memory used for control packets. + * + * PPP_CTRL_PBUF_MAX_SIZE is the amount of memory we allocate when we + * cannot figure out how much we are going to use before filling the buffer. + */ +#if PPP_USE_PBUF_RAM +#define PPP_CTRL_PBUF_TYPE PBUF_RAM +#define PPP_CTRL_PBUF_MAX_SIZE 512 +#else /* PPP_USE_PBUF_RAM */ +#define PPP_CTRL_PBUF_TYPE PBUF_POOL +#define PPP_CTRL_PBUF_MAX_SIZE PBUF_POOL_BUFSIZE +#endif /* PPP_USE_PBUF_RAM */ + +/* + * The basic PPP frame. + */ +#define PPP_ADDRESS(p) (((u_char *)(p))[0]) +#define PPP_CONTROL(p) (((u_char *)(p))[1]) +#define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3]) + +/* + * Significant octet values. + */ +#define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ +#define PPP_UI 0x03 /* Unnumbered Information */ +#define PPP_FLAG 0x7e /* Flag Sequence */ +#define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ +#define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ + +/* + * Protocol field values. + */ +#define PPP_IP 0x21 /* Internet Protocol */ +#if 0 /* UNUSED */ +#define PPP_AT 0x29 /* AppleTalk Protocol */ +#define PPP_IPX 0x2b /* IPX protocol */ +#endif /* UNUSED */ +#if VJ_SUPPORT +#define PPP_VJC_COMP 0x2d /* VJ compressed TCP */ +#define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */ +#endif /* VJ_SUPPORT */ +#if PPP_IPV6_SUPPORT +#define PPP_IPV6 0x57 /* Internet Protocol Version 6 */ +#endif /* PPP_IPV6_SUPPORT */ +#if CCP_SUPPORT +#define PPP_COMP 0xfd /* compressed packet */ +#endif /* CCP_SUPPORT */ +#define PPP_IPCP 0x8021 /* IP Control Protocol */ +#if 0 /* UNUSED */ +#define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */ +#define PPP_IPXCP 0x802b /* IPX Control Protocol */ +#endif /* UNUSED */ +#if PPP_IPV6_SUPPORT +#define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */ +#endif /* PPP_IPV6_SUPPORT */ +#if CCP_SUPPORT +#define PPP_CCP 0x80fd /* Compression Control Protocol */ +#endif /* CCP_SUPPORT */ +#if ECP_SUPPORT +#define PPP_ECP 0x8053 /* Encryption Control Protocol */ +#endif /* ECP_SUPPORT */ +#define PPP_LCP 0xc021 /* Link Control Protocol */ +#if PAP_SUPPORT +#define PPP_PAP 0xc023 /* Password Authentication Protocol */ +#endif /* PAP_SUPPORT */ +#if LQR_SUPPORT +#define PPP_LQR 0xc025 /* Link Quality Report protocol */ +#endif /* LQR_SUPPORT */ +#if CHAP_SUPPORT +#define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */ +#endif /* CHAP_SUPPORT */ +#if CBCP_SUPPORT +#define PPP_CBCP 0xc029 /* Callback Control Protocol */ +#endif /* CBCP_SUPPORT */ +#if EAP_SUPPORT +#define PPP_EAP 0xc227 /* Extensible Authentication Protocol */ +#endif /* EAP_SUPPORT */ + +/* + * The following struct gives the addresses of procedures to call + * for a particular lower link level protocol. + */ +struct link_callbacks { + /* Start a connection (e.g. Initiate discovery phase) */ + void (*connect) (ppp_pcb *pcb, void *ctx); +#if PPP_SERVER + /* Listen for an incoming connection (Passive mode) */ + void (*listen) (ppp_pcb *pcb, void *ctx); +#endif /* PPP_SERVER */ + /* End a connection (i.e. initiate disconnect phase) */ + void (*disconnect) (ppp_pcb *pcb, void *ctx); + /* Free lower protocol control block */ + err_t (*free) (ppp_pcb *pcb, void *ctx); + /* Write a pbuf to a ppp link, only used from PPP functions to send PPP packets. */ + err_t (*write)(ppp_pcb *pcb, void *ctx, struct pbuf *p); + /* Send a packet from lwIP core (IPv4 or IPv6) */ + err_t (*netif_output)(ppp_pcb *pcb, void *ctx, struct pbuf *p, u_short protocol); + /* configure the transmit-side characteristics of the PPP interface */ + void (*send_config)(ppp_pcb *pcb, void *ctx, u32_t accm, int pcomp, int accomp); + /* confire the receive-side characteristics of the PPP interface */ + void (*recv_config)(ppp_pcb *pcb, void *ctx, u32_t accm, int pcomp, int accomp); +}; + +/* + * What to do with network protocol (NP) packets. + */ +enum NPmode { + NPMODE_PASS, /* pass the packet through */ + NPMODE_DROP, /* silently drop the packet */ + NPMODE_ERROR, /* return an error */ + NPMODE_QUEUE /* save it up for later. */ +}; + +/* + * Statistics. + */ +#if PPP_STATS_SUPPORT +struct pppstat { + unsigned int ppp_ibytes; /* bytes received */ + unsigned int ppp_ipackets; /* packets received */ + unsigned int ppp_ierrors; /* receive errors */ + unsigned int ppp_obytes; /* bytes sent */ + unsigned int ppp_opackets; /* packets sent */ + unsigned int ppp_oerrors; /* transmit errors */ +}; + +#if VJ_SUPPORT +struct vjstat { + unsigned int vjs_packets; /* outbound packets */ + unsigned int vjs_compressed; /* outbound compressed packets */ + unsigned int vjs_searches; /* searches for connection state */ + unsigned int vjs_misses; /* times couldn't find conn. state */ + unsigned int vjs_uncompressedin; /* inbound uncompressed packets */ + unsigned int vjs_compressedin; /* inbound compressed packets */ + unsigned int vjs_errorin; /* inbound unknown type packets */ + unsigned int vjs_tossed; /* inbound packets tossed because of error */ +}; +#endif /* VJ_SUPPORT */ + +struct ppp_stats { + struct pppstat p; /* basic PPP statistics */ +#if VJ_SUPPORT + struct vjstat vj; /* VJ header compression statistics */ +#endif /* VJ_SUPPORT */ +}; + +#if CCP_SUPPORT +struct compstat { + unsigned int unc_bytes; /* total uncompressed bytes */ + unsigned int unc_packets; /* total uncompressed packets */ + unsigned int comp_bytes; /* compressed bytes */ + unsigned int comp_packets; /* compressed packets */ + unsigned int inc_bytes; /* incompressible bytes */ + unsigned int inc_packets; /* incompressible packets */ + unsigned int ratio; /* recent compression ratio << 8 */ +}; + +struct ppp_comp_stats { + struct compstat c; /* packet compression statistics */ + struct compstat d; /* packet decompression statistics */ +}; +#endif /* CCP_SUPPORT */ + +#endif /* PPP_STATS_SUPPORT */ + +#if PPP_IDLETIMELIMIT +/* + * The following structure records the time in seconds since + * the last NP packet was sent or received. + */ +struct ppp_idle { + time_t xmit_idle; /* time since last NP packet sent */ + time_t recv_idle; /* time since last NP packet received */ +}; +#endif /* PPP_IDLETIMELIMIT */ + +/* values for epdisc.class */ +#define EPD_NULL 0 /* null discriminator, no data */ +#define EPD_LOCAL 1 +#define EPD_IP 2 +#define EPD_MAC 3 +#define EPD_MAGIC 4 +#define EPD_PHONENUM 5 + +/* + * Global variables. + */ +#ifdef HAVE_MULTILINK +extern u8_t multilink; /* enable multilink operation */ +extern u8_t doing_multilink; +extern u8_t multilink_master; +extern u8_t bundle_eof; +extern u8_t bundle_terminating; +#endif + +#ifdef MAXOCTETS +extern unsigned int maxoctets; /* Maximum octetes per session (in bytes) */ +extern int maxoctets_dir; /* Direction : + 0 - in+out (default) + 1 - in + 2 - out + 3 - max(in,out) */ +extern int maxoctets_timeout; /* Timeout for check of octets limit */ +#define PPP_OCTETS_DIRECTION_SUM 0 +#define PPP_OCTETS_DIRECTION_IN 1 +#define PPP_OCTETS_DIRECTION_OUT 2 +#define PPP_OCTETS_DIRECTION_MAXOVERAL 3 +/* same as previous, but little different on RADIUS side */ +#define PPP_OCTETS_DIRECTION_MAXSESSION 4 +#endif + +/* Data input may be used by CCP and ECP, remove this entry + * from struct protent to save some flash + */ +#define PPP_DATAINPUT 0 + +/* + * The following struct gives the addresses of procedures to call + * for a particular protocol. + */ +struct protent { + u_short protocol; /* PPP protocol number */ + /* Initialization procedure */ + void (*init) (ppp_pcb *pcb); + /* Process a received packet */ + void (*input) (ppp_pcb *pcb, u_char *pkt, int len); + /* Process a received protocol-reject */ + void (*protrej) (ppp_pcb *pcb); + /* Lower layer has come up */ + void (*lowerup) (ppp_pcb *pcb); + /* Lower layer has gone down */ + void (*lowerdown) (ppp_pcb *pcb); + /* Open the protocol */ + void (*open) (ppp_pcb *pcb); + /* Close the protocol */ + void (*close) (ppp_pcb *pcb, const char *reason); +#if PRINTPKT_SUPPORT + /* Print a packet in readable form */ + int (*printpkt) (const u_char *pkt, int len, + void (*printer) (void *, const char *, ...), + void *arg); +#endif /* PRINTPKT_SUPPORT */ +#if PPP_DATAINPUT + /* Process a received data packet */ + void (*datainput) (ppp_pcb *pcb, u_char *pkt, int len); +#endif /* PPP_DATAINPUT */ +#if PRINTPKT_SUPPORT + const char *name; /* Text name of protocol */ + const char *data_name; /* Text name of corresponding data protocol */ +#endif /* PRINTPKT_SUPPORT */ +#if PPP_OPTIONS + option_t *options; /* List of command-line options */ + /* Check requested options, assign defaults */ + void (*check_options) (void); +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT + /* Configure interface for demand-dial */ + int (*demand_conf) (int unit); + /* Say whether to bring up link for this pkt */ + int (*active_pkt) (u_char *pkt, int len); +#endif /* DEMAND_SUPPORT */ +}; + +/* Table of pointers to supported protocols */ +extern const struct protent* const protocols[]; + + +/* Values for auth_pending, auth_done */ +#if PAP_SUPPORT +#define PAP_WITHPEER 0x1 +#define PAP_PEER 0x2 +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT +#define CHAP_WITHPEER 0x4 +#define CHAP_PEER 0x8 +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT +#define EAP_WITHPEER 0x10 +#define EAP_PEER 0x20 +#endif /* EAP_SUPPORT */ + +/* Values for auth_done only */ +#if CHAP_SUPPORT +#define CHAP_MD5_WITHPEER 0x40 +#define CHAP_MD5_PEER 0x80 +#if MSCHAP_SUPPORT +#define CHAP_MS_SHIFT 8 /* LSB position for MS auths */ +#define CHAP_MS_WITHPEER 0x100 +#define CHAP_MS_PEER 0x200 +#define CHAP_MS2_WITHPEER 0x400 +#define CHAP_MS2_PEER 0x800 +#endif /* MSCHAP_SUPPORT */ +#endif /* CHAP_SUPPORT */ + +/* Supported CHAP protocols */ +#if CHAP_SUPPORT + +#if MSCHAP_SUPPORT +#define CHAP_MDTYPE_SUPPORTED (MDTYPE_MICROSOFT_V2 | MDTYPE_MICROSOFT | MDTYPE_MD5) +#else /* MSCHAP_SUPPORT */ +#define CHAP_MDTYPE_SUPPORTED (MDTYPE_MD5) +#endif /* MSCHAP_SUPPORT */ + +#else /* CHAP_SUPPORT */ +#define CHAP_MDTYPE_SUPPORTED (MDTYPE_NONE) +#endif /* CHAP_SUPPORT */ + +#if PPP_STATS_SUPPORT +/* + * PPP statistics structure + */ +struct pppd_stats { + unsigned int bytes_in; + unsigned int bytes_out; + unsigned int pkts_in; + unsigned int pkts_out; +}; +#endif /* PPP_STATS_SUPPORT */ + + +/* + * PPP private functions + */ + + +/* + * Functions called from lwIP core. + */ + +/* initialize the PPP subsystem */ +int ppp_init(void); + +/* + * Functions called from PPP link protocols. + */ + +/* Create a new PPP control block */ +ppp_pcb *ppp_new(struct netif *pppif, const struct link_callbacks *callbacks, void *link_ctx_cb, + ppp_link_status_cb_fn link_status_cb, void *ctx_cb); + +/* Initiate LCP open request */ +void ppp_start(ppp_pcb *pcb); + +/* Called when link failed to setup */ +void ppp_link_failed(ppp_pcb *pcb); + +/* Called when link is normally down (i.e. it was asked to end) */ +void ppp_link_end(ppp_pcb *pcb); + +/* function called to process input packet */ +void ppp_input(ppp_pcb *pcb, struct pbuf *pb); + + +/* + * Functions called by PPP protocols. + */ + +/* function called by all PPP subsystems to send packets */ +err_t ppp_write(ppp_pcb *pcb, struct pbuf *p); + +/* functions called by auth.c link_terminated() */ +void ppp_link_terminated(ppp_pcb *pcb); + +void new_phase(ppp_pcb *pcb, int p); + +int ppp_send_config(ppp_pcb *pcb, int mtu, u32_t accm, int pcomp, int accomp); +int ppp_recv_config(ppp_pcb *pcb, int mru, u32_t accm, int pcomp, int accomp); + +#if PPP_IPV4_SUPPORT +int sifaddr(ppp_pcb *pcb, u32_t our_adr, u32_t his_adr, u32_t netmask); +int cifaddr(ppp_pcb *pcb, u32_t our_adr, u32_t his_adr); +#if 0 /* UNUSED - PROXY ARP */ +int sifproxyarp(ppp_pcb *pcb, u32_t his_adr); +int cifproxyarp(ppp_pcb *pcb, u32_t his_adr); +#endif /* UNUSED - PROXY ARP */ +#if LWIP_DNS +int sdns(ppp_pcb *pcb, u32_t ns1, u32_t ns2); +int cdns(ppp_pcb *pcb, u32_t ns1, u32_t ns2); +#endif /* LWIP_DNS */ +#if VJ_SUPPORT +int sifvjcomp(ppp_pcb *pcb, int vjcomp, int cidcomp, int maxcid); +#endif /* VJ_SUPPORT */ +int sifup(ppp_pcb *pcb); +int sifdown (ppp_pcb *pcb); +u32_t get_mask(u32_t addr); +#endif /* PPP_IPV4_SUPPORT */ + +#if PPP_IPV6_SUPPORT +int sif6addr(ppp_pcb *pcb, eui64_t our_eui64, eui64_t his_eui64); +int cif6addr(ppp_pcb *pcb, eui64_t our_eui64, eui64_t his_eui64); +int sif6up(ppp_pcb *pcb); +int sif6down (ppp_pcb *pcb); +#endif /* PPP_IPV6_SUPPORT */ + +#if DEMAND_SUPPORT +int sifnpmode(ppp_pcb *pcb, int proto, enum NPmode mode); +#endif /* DEMAND_SUPPORt */ + +void netif_set_mtu(ppp_pcb *pcb, int mtu); +int netif_get_mtu(ppp_pcb *pcb); + +#if CCP_SUPPORT +#if 0 /* unused */ +int ccp_test(ppp_pcb *pcb, u_char *opt_ptr, int opt_len, int for_transmit); +#endif /* unused */ +void ccp_set(ppp_pcb *pcb, u8_t isopen, u8_t isup, u8_t receive_method, u8_t transmit_method); +void ccp_reset_comp(ppp_pcb *pcb); +void ccp_reset_decomp(ppp_pcb *pcb); +#if 0 /* unused */ +int ccp_fatal_error(ppp_pcb *pcb); +#endif /* unused */ +#endif /* CCP_SUPPORT */ + +#if PPP_IDLETIMELIMIT +int get_idle_time(ppp_pcb *pcb, struct ppp_idle *ip); +#endif /* PPP_IDLETIMELIMIT */ + +#if DEMAND_SUPPORT +int get_loop_output(void); +#endif /* DEMAND_SUPPORT */ + +/* Optional protocol names list, to make our messages a little more informative. */ +#if PPP_PROTOCOLNAME +const char * protocol_name(int proto); +#endif /* PPP_PROTOCOLNAME */ + +/* Optional stats support, to get some statistics on the PPP interface */ +#if PPP_STATS_SUPPORT +void print_link_stats(void); /* Print stats, if available */ +void reset_link_stats(int u); /* Reset (init) stats when link goes up */ +void update_link_stats(int u); /* Get stats at link termination */ +#endif /* PPP_STATS_SUPPORT */ + + + +/* + * Inline versions of get/put char/short/long. + * Pointer is advanced; we assume that both arguments + * are lvalues and will already be in registers. + * cp MUST be u_char *. + */ +#define GETCHAR(c, cp) { \ + (c) = *(cp)++; \ +} +#define PUTCHAR(c, cp) { \ + *(cp)++ = (u_char) (c); \ +} +#define GETSHORT(s, cp) { \ + (s) = *(cp)++ << 8; \ + (s) |= *(cp)++; \ +} +#define PUTSHORT(s, cp) { \ + *(cp)++ = (u_char) ((s) >> 8); \ + *(cp)++ = (u_char) (s); \ +} +#define GETLONG(l, cp) { \ + (l) = *(cp)++ << 8; \ + (l) |= *(cp)++; (l) <<= 8; \ + (l) |= *(cp)++; (l) <<= 8; \ + (l) |= *(cp)++; \ +} +#define PUTLONG(l, cp) { \ + *(cp)++ = (u_char) ((l) >> 24); \ + *(cp)++ = (u_char) ((l) >> 16); \ + *(cp)++ = (u_char) ((l) >> 8); \ + *(cp)++ = (u_char) (l); \ +} + +#define INCPTR(n, cp) ((cp) += (n)) +#define DECPTR(n, cp) ((cp) -= (n)) + +/* + * System dependent definitions for user-level 4.3BSD UNIX implementation. + */ +#define TIMEOUT(f, a, t) do { sys_untimeout((f), (a)); sys_timeout((t)*1000, (f), (a)); } while(0) +#define TIMEOUTMS(f, a, t) do { sys_untimeout((f), (a)); sys_timeout((t), (f), (a)); } while(0) +#define UNTIMEOUT(f, a) sys_untimeout((f), (a)) + +#define BZERO(s, n) memset(s, 0, n) +#define BCMP(s1, s2, l) memcmp(s1, s2, l) + +#define PRINTMSG(m, l) { ppp_info(("Remote message: %0.*v", l, m)); } + +/* + * MAKEHEADER - Add Header fields to a packet. + */ +#define MAKEHEADER(p, t) { \ + PUTCHAR(PPP_ALLSTATIONS, p); \ + PUTCHAR(PPP_UI, p); \ + PUTSHORT(t, p); } + +/* Procedures exported from auth.c */ +void link_required(ppp_pcb *pcb); /* we are starting to use the link */ +void link_terminated(ppp_pcb *pcb); /* we are finished with the link */ +void link_down(ppp_pcb *pcb); /* the LCP layer has left the Opened state */ +void upper_layers_down(ppp_pcb *pcb); /* take all NCPs down */ +void link_established(ppp_pcb *pcb); /* the link is up; authenticate now */ +void start_networks(ppp_pcb *pcb); /* start all the network control protos */ +void continue_networks(ppp_pcb *pcb); /* start network [ip, etc] control protos */ +#if PPP_AUTH_SUPPORT +#if PPP_SERVER +int auth_check_passwd(ppp_pcb *pcb, char *auser, int userlen, char *apasswd, int passwdlen, const char **msg, int *msglen); + /* check the user name and passwd against configuration */ +void auth_peer_fail(ppp_pcb *pcb, int protocol); + /* peer failed to authenticate itself */ +void auth_peer_success(ppp_pcb *pcb, int protocol, int prot_flavor, const char *name, int namelen); + /* peer successfully authenticated itself */ +#endif /* PPP_SERVER */ +void auth_withpeer_fail(ppp_pcb *pcb, int protocol); + /* we failed to authenticate ourselves */ +void auth_withpeer_success(ppp_pcb *pcb, int protocol, int prot_flavor); + /* we successfully authenticated ourselves */ +#endif /* PPP_AUTH_SUPPORT */ +void np_up(ppp_pcb *pcb, int proto); /* a network protocol has come up */ +void np_down(ppp_pcb *pcb, int proto); /* a network protocol has gone down */ +void np_finished(ppp_pcb *pcb, int proto); /* a network protocol no longer needs link */ +#if PPP_AUTH_SUPPORT +int get_secret(ppp_pcb *pcb, const char *client, const char *server, char *secret, int *secret_len, int am_server); + /* get "secret" for chap */ +#endif /* PPP_AUTH_SUPPORT */ + +/* Procedures exported from ipcp.c */ +/* int parse_dotted_ip (char *, u32_t *); */ + +/* Procedures exported from demand.c */ +#if DEMAND_SUPPORT +void demand_conf (void); /* config interface(s) for demand-dial */ +void demand_block (void); /* set all NPs to queue up packets */ +void demand_unblock (void); /* set all NPs to pass packets */ +void demand_discard (void); /* set all NPs to discard packets */ +void demand_rexmit (int, u32_t); /* retransmit saved frames for an NP*/ +int loop_chars (unsigned char *, int); /* process chars from loopback */ +int loop_frame (unsigned char *, int); /* should we bring link up? */ +#endif /* DEMAND_SUPPORT */ + +/* Procedures exported from multilink.c */ +#ifdef HAVE_MULTILINK +void mp_check_options (void); /* Check multilink-related options */ +int mp_join_bundle (void); /* join our link to an appropriate bundle */ +void mp_exit_bundle (void); /* have disconnected our link from bundle */ +void mp_bundle_terminated (void); +char *epdisc_to_str (struct epdisc *); /* string from endpoint discrim. */ +int str_to_epdisc (struct epdisc *, char *); /* endpt disc. from str */ +#else +#define mp_bundle_terminated() /* nothing */ +#define mp_exit_bundle() /* nothing */ +#define doing_multilink 0 +#define multilink_master 0 +#endif + +/* Procedures exported from utils.c. */ +void ppp_print_string(const u_char *p, int len, void (*printer) (void *, const char *, ...), void *arg); /* Format a string for output */ +int ppp_slprintf(char *buf, int buflen, const char *fmt, ...); /* sprintf++ */ +int ppp_vslprintf(char *buf, int buflen, const char *fmt, va_list args); /* vsprintf++ */ +size_t ppp_strlcpy(char *dest, const char *src, size_t len); /* safe strcpy */ +size_t ppp_strlcat(char *dest, const char *src, size_t len); /* safe strncpy */ +void ppp_dbglog_impl(const char *fmt, ...); /* log a debug message */ +void ppp_info_impl(const char *fmt, ...); /* log an informational message */ +void ppp_notice_impl(const char *fmt, ...); /* log a notice-level message */ +void ppp_warn_impl(const char *fmt, ...); /* log a warning message */ +void ppp_error_impl(const char *fmt, ...); /* log an error message */ +void ppp_fatal_impl(const char *fmt, ...); /* log an error message and die(1) */ +/* wrap all the above functions so they will only be linked when enabled */ +#define ppp_dbglog(x) do { if (LWIP_DEBUG_ENABLED(LOG_DEBUG)) { ppp_dbglog_impl x; }} while(0) +#define ppp_info(x) do { if (LWIP_DEBUG_ENABLED(LOG_INFO)) { ppp_info_impl x; }} while(0) +#define ppp_notice(x) do { if (LWIP_DEBUG_ENABLED(LOG_NOTICE)) { ppp_notice_impl x; }} while(0) +#define ppp_warn(x) do { if (LWIP_DEBUG_ENABLED(LOG_WARNING)) { ppp_warn_impl x; }} while(0) +#define ppp_error(x) do { if (LWIP_DEBUG_ENABLED(LOG_ERR)) { ppp_error_impl x; }} while(0) +#define ppp_fatal(x) do { if (LWIP_DEBUG_ENABLED(LOG_CRITICAL)) { ppp_fatal_impl x; }} while(0) +#if PRINTPKT_SUPPORT +void ppp_dump_packet(ppp_pcb *pcb, const char *tag, unsigned char *p, int len); + /* dump packet to debug log if interesting */ +#endif /* PRINTPKT_SUPPORT */ + +/* + * Number of necessary timers analysis. + * + * PPP use at least one timer per each of its protocol, but not all protocols are + * active at the same time, thus the number of necessary timeouts is actually + * lower than enabled protocols. Here is the actual necessary timeouts based + * on code analysis. + * + * Note that many features analysed here are not working at all and are only + * there for a comprehensive analysis of necessary timers in order to prevent + * having to redo that each time we add a feature. + * + * Timer list + * + * | holdoff timeout + * | low level protocol timeout (PPPoE or PPPoL2P) + * | LCP delayed UP + * | LCP retransmit (FSM) + * | LCP Echo timer + * .| PAP or CHAP or EAP authentication + * . | ECP retransmit (FSM) + * . | CCP retransmit (FSM) when MPPE is enabled + * . | CCP retransmit (FSM) when MPPE is NOT enabled + * . | IPCP retransmit (FSM) + * . .| IP6CP retransmit (FSM) + * . . | Idle time limit + * . . | Max connect time + * . . | Max octets + * . . | CCP RACK timeout + * . . . + * PPP_PHASE_DEAD + * PPP_PHASE_HOLDOFF + * | . . . + * PPP_PHASE_INITIALIZE + * | . . . + * PPP_PHASE_ESTABLISH + * | . . . + * |. . . + * | . . + * PPP_PHASE_AUTHENTICATE + * | . . + * || . . + * PPP_PHASE_NETWORK + * | || . . + * | ||| . + * PPP_PHASE_RUNNING + * | .||||| + * | . |||| + * PPP_PHASE_TERMINATE + * | . |||| + * PPP_PHASE_NETWORK + * |. . + * PPP_PHASE_ESTABLISH + * PPP_PHASE_DISCONNECT + * PPP_PHASE_DEAD + * + * Alright, PPP basic retransmission and LCP Echo consume one timer. + * 1 + * + * If authentication is enabled one timer is necessary during authentication. + * 1 + PPP_AUTH_SUPPORT + * + * If ECP is enabled one timer is necessary before IPCP and/or IP6CP, one more + * is necessary if CCP is enabled (only with MPPE support but we don't care much + * up to this detail level). + * 1 + ECP_SUPPORT + CCP_SUPPORT + * + * If CCP is enabled it might consume a timer during IPCP or IP6CP, thus + * we might use IPCP, IP6CP and CCP timers simultaneously. + * 1 + PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT + CCP_SUPPORT + * + * When entering running phase, IPCP or IP6CP is still running. If idle time limit + * is enabled one more timer is necessary. Same for max connect time and max + * octets features. Furthermore CCP RACK might be used past this point. + * 1 + PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT -1 + PPP_IDLETIMELIMIT + PPP_MAXCONNECT + MAXOCTETS + CCP_SUPPORT + * + * IPv4 or IPv6 must be enabled, therefore we don't need to take care the authentication + * and the CCP + ECP case, thus reducing overall complexity. + * 1 + LWIP_MAX(PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT + CCP_SUPPORT, PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT -1 + PPP_IDLETIMELIMIT + PPP_MAXCONNECT + MAXOCTETS + CCP_SUPPORT) + * + * We don't support PPP_IDLETIMELIMIT + PPP_MAXCONNECT + MAXOCTETS features + * and adding those defines to ppp_opts.h just for having the value always + * defined to 0 isn't worth it. + * 1 + LWIP_MAX(PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT + CCP_SUPPORT, PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT -1 + CCP_SUPPORT) + * + * Thus, the following is enough for now. + * 1 + PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT + CCP_SUPPORT + */ + +#ifdef __cplusplus +} +#endif + +#endif /* PPP_SUPPORT */ +#endif /* LWIP_HDR_PPP_IMPL_H */ diff --git a/middleware/lwip/src/include/netif/ppp/ppp_opts.h b/middleware/lwip/src/include/netif/ppp/ppp_opts.h new file mode 100644 index 0000000..479a006 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/ppp_opts.h @@ -0,0 +1,617 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#ifndef LWIP_PPP_OPTS_H +#define LWIP_PPP_OPTS_H + +#include "lwip/opt.h" + +/** + * PPP_SUPPORT==1: Enable PPP. + */ +#ifndef PPP_SUPPORT +#define PPP_SUPPORT 0 +#endif + +/** + * PPPOE_SUPPORT==1: Enable PPP Over Ethernet + */ +#ifndef PPPOE_SUPPORT +#define PPPOE_SUPPORT 0 +#endif + +/** + * PPPOE_SCNAME_SUPPORT==1: Enable PPP Over Ethernet Service Name and Concentrator Name support + */ +#ifndef PPPOE_SCNAME_SUPPORT +#define PPPOE_SCNAME_SUPPORT 0 +#endif + +/** + * PPPOL2TP_SUPPORT==1: Enable PPP Over L2TP + */ +#ifndef PPPOL2TP_SUPPORT +#define PPPOL2TP_SUPPORT 0 +#endif + +/** + * PPPOL2TP_AUTH_SUPPORT==1: Enable PPP Over L2TP Auth (enable MD5 support) + */ +#ifndef PPPOL2TP_AUTH_SUPPORT +#define PPPOL2TP_AUTH_SUPPORT PPPOL2TP_SUPPORT +#endif + +/** + * PPPOS_SUPPORT==1: Enable PPP Over Serial + */ +#ifndef PPPOS_SUPPORT +#define PPPOS_SUPPORT PPP_SUPPORT +#endif + +/** + * LWIP_PPP_API==1: Enable PPP API (in pppapi.c) + */ +#ifndef LWIP_PPP_API +#define LWIP_PPP_API (PPP_SUPPORT && (NO_SYS == 0)) +#endif + +#if PPP_SUPPORT + +/** + * MEMP_NUM_PPP_PCB: the number of simultaneously active PPP + * connections (requires the PPP_SUPPORT option) + */ +#ifndef MEMP_NUM_PPP_PCB +#define MEMP_NUM_PPP_PCB 1 +#endif + +/** + * PPP_NUM_TIMEOUTS_PER_PCB: the number of sys_timeouts running in parallel per + * ppp_pcb. See the detailed explanation at the end of ppp_impl.h about simultaneous + * timers analysis. + */ +#ifndef PPP_NUM_TIMEOUTS_PER_PCB +#define PPP_NUM_TIMEOUTS_PER_PCB (1 + PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT + CCP_SUPPORT) +#endif + +/* The number of sys_timeouts required for the PPP module */ +#define PPP_NUM_TIMEOUTS (PPP_SUPPORT * PPP_NUM_TIMEOUTS_PER_PCB * MEMP_NUM_PPP_PCB) + +/** + * MEMP_NUM_PPPOS_INTERFACES: the number of concurrently active PPPoS + * interfaces (only used with PPPOS_SUPPORT==1) + */ +#ifndef MEMP_NUM_PPPOS_INTERFACES +#define MEMP_NUM_PPPOS_INTERFACES MEMP_NUM_PPP_PCB +#endif + +/** + * MEMP_NUM_PPPOE_INTERFACES: the number of concurrently active PPPoE + * interfaces (only used with PPPOE_SUPPORT==1) + */ +#ifndef MEMP_NUM_PPPOE_INTERFACES +#define MEMP_NUM_PPPOE_INTERFACES 1 +#endif + +/** + * MEMP_NUM_PPPOL2TP_INTERFACES: the number of concurrently active PPPoL2TP + * interfaces (only used with PPPOL2TP_SUPPORT==1) + */ +#ifndef MEMP_NUM_PPPOL2TP_INTERFACES +#define MEMP_NUM_PPPOL2TP_INTERFACES 1 +#endif + +/** + * MEMP_NUM_PPP_API_MSG: Number of concurrent PPP API messages (in pppapi.c) + */ +#ifndef MEMP_NUM_PPP_API_MSG +#define MEMP_NUM_PPP_API_MSG 5 +#endif + +/** + * PPP_DEBUG: Enable debugging for PPP. + */ +#ifndef PPP_DEBUG +#define PPP_DEBUG LWIP_DBG_OFF +#endif + +/** + * PPP_INPROC_IRQ_SAFE==1 call pppos_input() using tcpip_callback(). + * + * Please read the "PPPoS input path" chapter in the PPP documentation about this option. + */ +#ifndef PPP_INPROC_IRQ_SAFE +#define PPP_INPROC_IRQ_SAFE 0 +#endif + +/** + * PRINTPKT_SUPPORT==1: Enable PPP print packet support + * + * Mandatory for debugging, it displays exchanged packet content in debug trace. + */ +#ifndef PRINTPKT_SUPPORT +#define PRINTPKT_SUPPORT 0 +#endif + +/** + * PPP_IPV4_SUPPORT==1: Enable PPP IPv4 support + */ +#ifndef PPP_IPV4_SUPPORT +#define PPP_IPV4_SUPPORT (LWIP_IPV4) +#endif + +/** + * PPP_IPV6_SUPPORT==1: Enable PPP IPv6 support + */ +#ifndef PPP_IPV6_SUPPORT +#define PPP_IPV6_SUPPORT (LWIP_IPV6) +#endif + +/** + * PPP_NOTIFY_PHASE==1: Support PPP notify phase support + * + * PPP notify phase support allows you to set a callback which is + * called on change of the internal PPP state machine. + * + * This can be used for example to set a LED pattern depending on the + * current phase of the PPP session. + */ +#ifndef PPP_NOTIFY_PHASE +#define PPP_NOTIFY_PHASE 0 +#endif + +/** + * pbuf_type PPP is using for LCP, PAP, CHAP, EAP, CCP, IPCP and IP6CP packets. + * + * Memory allocated must be single buffered for PPP to works, it requires pbuf + * that are not going to be chained when allocated. This requires setting + * PBUF_POOL_BUFSIZE to at least 512 bytes, which is quite huge for small systems. + * + * Setting PPP_USE_PBUF_RAM to 1 makes PPP use memory from heap where continuous + * buffers are required, allowing you to use a smaller PBUF_POOL_BUFSIZE. + */ +#ifndef PPP_USE_PBUF_RAM +#define PPP_USE_PBUF_RAM 0 +#endif + +/** + * PPP_FCS_TABLE: Keep a 256*2 byte table to speed up FCS calculation for PPPoS + */ +#ifndef PPP_FCS_TABLE +#define PPP_FCS_TABLE 1 +#endif + +/** + * PAP_SUPPORT==1: Support PAP. + */ +#ifndef PAP_SUPPORT +#define PAP_SUPPORT 0 +#endif + +/** + * CHAP_SUPPORT==1: Support CHAP. + */ +#ifndef CHAP_SUPPORT +#define CHAP_SUPPORT 0 +#endif + +/** + * MSCHAP_SUPPORT==1: Support MSCHAP. + */ +#ifndef MSCHAP_SUPPORT +#define MSCHAP_SUPPORT 0 +#endif +#if MSCHAP_SUPPORT +/* MSCHAP requires CHAP support */ +#undef CHAP_SUPPORT +#define CHAP_SUPPORT 1 +#endif /* MSCHAP_SUPPORT */ + +/** + * EAP_SUPPORT==1: Support EAP. + */ +#ifndef EAP_SUPPORT +#define EAP_SUPPORT 0 +#endif + +/** + * CCP_SUPPORT==1: Support CCP. + */ +#ifndef CCP_SUPPORT +#define CCP_SUPPORT 0 +#endif + +/** + * MPPE_SUPPORT==1: Support MPPE. + */ +#ifndef MPPE_SUPPORT +#define MPPE_SUPPORT 0 +#endif +#if MPPE_SUPPORT +/* MPPE requires CCP support */ +#undef CCP_SUPPORT +#define CCP_SUPPORT 1 +/* MPPE requires MSCHAP support */ +#undef MSCHAP_SUPPORT +#define MSCHAP_SUPPORT 1 +/* MSCHAP requires CHAP support */ +#undef CHAP_SUPPORT +#define CHAP_SUPPORT 1 +#endif /* MPPE_SUPPORT */ + +/** + * CBCP_SUPPORT==1: Support CBCP. CURRENTLY NOT SUPPORTED! DO NOT SET! + */ +#ifndef CBCP_SUPPORT +#define CBCP_SUPPORT 0 +#endif + +/** + * ECP_SUPPORT==1: Support ECP. CURRENTLY NOT SUPPORTED! DO NOT SET! + */ +#ifndef ECP_SUPPORT +#define ECP_SUPPORT 0 +#endif + +/** + * DEMAND_SUPPORT==1: Support dial on demand. CURRENTLY NOT SUPPORTED! DO NOT SET! + */ +#ifndef DEMAND_SUPPORT +#define DEMAND_SUPPORT 0 +#endif + +/** + * LQR_SUPPORT==1: Support Link Quality Report. Do nothing except exchanging some LCP packets. + */ +#ifndef LQR_SUPPORT +#define LQR_SUPPORT 0 +#endif + +/** + * PPP_SERVER==1: Enable PPP server support (waiting for incoming PPP session). + * + * Currently only supported for PPPoS. + */ +#ifndef PPP_SERVER +#define PPP_SERVER 0 +#endif + +#if PPP_SERVER +/* + * PPP_OUR_NAME: Our name for authentication purposes + */ +#ifndef PPP_OUR_NAME +#define PPP_OUR_NAME "lwIP" +#endif +#endif /* PPP_SERVER */ + +/** + * VJ_SUPPORT==1: Support VJ header compression. + */ +#ifndef VJ_SUPPORT +#define VJ_SUPPORT 1 +#endif +/* VJ compression is only supported for TCP over IPv4 over PPPoS. */ +#if !PPPOS_SUPPORT || !PPP_IPV4_SUPPORT || !LWIP_TCP +#undef VJ_SUPPORT +#define VJ_SUPPORT 0 +#endif /* !PPPOS_SUPPORT */ + +/** + * PPP_MD5_RANDM==1: Use MD5 for better randomness. + * Enabled by default if CHAP, EAP, or L2TP AUTH support is enabled. + */ +#ifndef PPP_MD5_RANDM +#define PPP_MD5_RANDM (CHAP_SUPPORT || EAP_SUPPORT || PPPOL2TP_AUTH_SUPPORT) +#endif + +/** + * PolarSSL embedded library + * + * + * lwIP contains some files fetched from the latest BSD release of + * the PolarSSL project (PolarSSL 0.10.1-bsd) for ciphers and encryption + * methods we need for lwIP PPP support. + * + * The PolarSSL files were cleaned to contain only the necessary struct + * fields and functions needed for lwIP. + * + * The PolarSSL API was not changed at all, so if you are already using + * PolarSSL you can choose to skip the compilation of the included PolarSSL + * library into lwIP. + * + * If you are not using the embedded copy you must include external + * libraries into your arch/cc.h port file. + * + * Beware of the stack requirements which can be a lot larger if you are not + * using our cleaned PolarSSL library. + */ + +/** + * LWIP_USE_EXTERNAL_POLARSSL: Use external PolarSSL library + */ +#ifndef LWIP_USE_EXTERNAL_POLARSSL +#define LWIP_USE_EXTERNAL_POLARSSL 0 +#endif + +/** + * LWIP_USE_EXTERNAL_MBEDTLS: Use external mbed TLS library + */ +#ifndef LWIP_USE_EXTERNAL_MBEDTLS +#define LWIP_USE_EXTERNAL_MBEDTLS 0 +#endif + +/* + * PPP Timeouts + */ + +/** + * FSM_DEFTIMEOUT: Timeout time in seconds + */ +#ifndef FSM_DEFTIMEOUT +#define FSM_DEFTIMEOUT 6 +#endif + +/** + * FSM_DEFMAXTERMREQS: Maximum Terminate-Request transmissions + */ +#ifndef FSM_DEFMAXTERMREQS +#define FSM_DEFMAXTERMREQS 2 +#endif + +/** + * FSM_DEFMAXCONFREQS: Maximum Configure-Request transmissions + */ +#ifndef FSM_DEFMAXCONFREQS +#define FSM_DEFMAXCONFREQS 10 +#endif + +/** + * FSM_DEFMAXNAKLOOPS: Maximum number of nak loops + */ +#ifndef FSM_DEFMAXNAKLOOPS +#define FSM_DEFMAXNAKLOOPS 5 +#endif + +/** + * UPAP_DEFTIMEOUT: Timeout (seconds) for retransmitting req + */ +#ifndef UPAP_DEFTIMEOUT +#define UPAP_DEFTIMEOUT 6 +#endif + +/** + * UPAP_DEFTRANSMITS: Maximum number of auth-reqs to send + */ +#ifndef UPAP_DEFTRANSMITS +#define UPAP_DEFTRANSMITS 10 +#endif + +#if PPP_SERVER +/** + * UPAP_DEFREQTIME: Time to wait for auth-req from peer + */ +#ifndef UPAP_DEFREQTIME +#define UPAP_DEFREQTIME 30 +#endif +#endif /* PPP_SERVER */ + +/** + * CHAP_DEFTIMEOUT: Timeout (seconds) for retransmitting req + */ +#ifndef CHAP_DEFTIMEOUT +#define CHAP_DEFTIMEOUT 6 +#endif + +/** + * CHAP_DEFTRANSMITS: max # times to send challenge + */ +#ifndef CHAP_DEFTRANSMITS +#define CHAP_DEFTRANSMITS 10 +#endif + +#if PPP_SERVER +/** + * CHAP_DEFRECHALLENGETIME: If this option is > 0, rechallenge the peer every n seconds + */ +#ifndef CHAP_DEFRECHALLENGETIME +#define CHAP_DEFRECHALLENGETIME 0 +#endif +#endif /* PPP_SERVER */ + +/** + * EAP_DEFREQTIME: Time to wait for peer request + */ +#ifndef EAP_DEFREQTIME +#define EAP_DEFREQTIME 6 +#endif + +/** + * EAP_DEFALLOWREQ: max # times to accept requests + */ +#ifndef EAP_DEFALLOWREQ +#define EAP_DEFALLOWREQ 10 +#endif + +#if PPP_SERVER +/** + * EAP_DEFTIMEOUT: Timeout (seconds) for rexmit + */ +#ifndef EAP_DEFTIMEOUT +#define EAP_DEFTIMEOUT 6 +#endif + +/** + * EAP_DEFTRANSMITS: max # times to transmit + */ +#ifndef EAP_DEFTRANSMITS +#define EAP_DEFTRANSMITS 10 +#endif +#endif /* PPP_SERVER */ + +/** + * LCP_DEFLOOPBACKFAIL: Default number of times we receive our magic number from the peer + * before deciding the link is looped-back. + */ +#ifndef LCP_DEFLOOPBACKFAIL +#define LCP_DEFLOOPBACKFAIL 10 +#endif + +/** + * LCP_ECHOINTERVAL: Interval in seconds between keepalive echo requests, 0 to disable. + */ +#ifndef LCP_ECHOINTERVAL +#define LCP_ECHOINTERVAL 0 +#endif + +/** + * LCP_MAXECHOFAILS: Number of unanswered echo requests before failure. + */ +#ifndef LCP_MAXECHOFAILS +#define LCP_MAXECHOFAILS 3 +#endif + +/** + * PPP_MAXIDLEFLAG: Max Xmit idle time (in ms) before resend flag char. + */ +#ifndef PPP_MAXIDLEFLAG +#define PPP_MAXIDLEFLAG 100 +#endif + +/** + * PPP Packet sizes + */ + +/** + * PPP_MRU: Default MRU + */ +#ifndef PPP_MRU +#define PPP_MRU 1500 +#endif + +/** + * PPP_DEFMRU: Default MRU to try + */ +#ifndef PPP_DEFMRU +#define PPP_DEFMRU 1500 +#endif + +/** + * PPP_MAXMRU: Normally limit MRU to this (pppd default = 16384) + */ +#ifndef PPP_MAXMRU +#define PPP_MAXMRU 1500 +#endif + +/** + * PPP_MINMRU: No MRUs below this + */ +#ifndef PPP_MINMRU +#define PPP_MINMRU 128 +#endif + +/** + * PPPOL2TP_DEFMRU: Default MTU and MRU for L2TP + * Default = 1500 - PPPoE(6) - PPP Protocol(2) - IPv4 header(20) - UDP Header(8) + * - L2TP Header(6) - HDLC Header(2) - PPP Protocol(2) - MPPE Header(2) - PPP Protocol(2) + */ +#if PPPOL2TP_SUPPORT +#ifndef PPPOL2TP_DEFMRU +#define PPPOL2TP_DEFMRU 1450 +#endif +#endif /* PPPOL2TP_SUPPORT */ + +/** + * MAXNAMELEN: max length of hostname or name for auth + */ +#ifndef MAXNAMELEN +#define MAXNAMELEN 256 +#endif + +/** + * MAXSECRETLEN: max length of password or secret + */ +#ifndef MAXSECRETLEN +#define MAXSECRETLEN 256 +#endif + +/* ------------------------------------------------------------------------- */ + +/* + * Build triggers for embedded PolarSSL + */ +#if !LWIP_USE_EXTERNAL_POLARSSL && !LWIP_USE_EXTERNAL_MBEDTLS + +/* CHAP, EAP, L2TP AUTH and MD5 Random require MD5 support */ +#if CHAP_SUPPORT || EAP_SUPPORT || PPPOL2TP_AUTH_SUPPORT || PPP_MD5_RANDM +#define LWIP_INCLUDED_POLARSSL_MD5 1 +#endif /* CHAP_SUPPORT || EAP_SUPPORT || PPPOL2TP_AUTH_SUPPORT || PPP_MD5_RANDM */ + +#if MSCHAP_SUPPORT + +/* MSCHAP require MD4 support */ +#define LWIP_INCLUDED_POLARSSL_MD4 1 +/* MSCHAP require SHA1 support */ +#define LWIP_INCLUDED_POLARSSL_SHA1 1 +/* MSCHAP require DES support */ +#define LWIP_INCLUDED_POLARSSL_DES 1 + +/* MS-CHAP support is required for MPPE */ +#if MPPE_SUPPORT +/* MPPE require ARC4 support */ +#define LWIP_INCLUDED_POLARSSL_ARC4 1 +#endif /* MPPE_SUPPORT */ + +#endif /* MSCHAP_SUPPORT */ + +#endif /* !LWIP_USE_EXTERNAL_POLARSSL && !LWIP_USE_EXTERNAL_MBEDTLS */ + +/* Default value if unset */ +#ifndef LWIP_INCLUDED_POLARSSL_MD4 +#define LWIP_INCLUDED_POLARSSL_MD4 0 +#endif /* LWIP_INCLUDED_POLARSSL_MD4 */ +#ifndef LWIP_INCLUDED_POLARSSL_MD5 +#define LWIP_INCLUDED_POLARSSL_MD5 0 +#endif /* LWIP_INCLUDED_POLARSSL_MD5 */ +#ifndef LWIP_INCLUDED_POLARSSL_SHA1 +#define LWIP_INCLUDED_POLARSSL_SHA1 0 +#endif /* LWIP_INCLUDED_POLARSSL_SHA1 */ +#ifndef LWIP_INCLUDED_POLARSSL_DES +#define LWIP_INCLUDED_POLARSSL_DES 0 +#endif /* LWIP_INCLUDED_POLARSSL_DES */ +#ifndef LWIP_INCLUDED_POLARSSL_ARC4 +#define LWIP_INCLUDED_POLARSSL_ARC4 0 +#endif /* LWIP_INCLUDED_POLARSSL_ARC4 */ + +#endif /* PPP_SUPPORT */ + +/* Default value if unset */ +#ifndef PPP_NUM_TIMEOUTS +#define PPP_NUM_TIMEOUTS 0 +#endif /* PPP_NUM_TIMEOUTS */ + +#endif /* LWIP_PPP_OPTS_H */ diff --git a/middleware/lwip/src/include/netif/ppp/pppapi.h b/middleware/lwip/src/include/netif/ppp/pppapi.h new file mode 100644 index 0000000..913d93f --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/pppapi.h @@ -0,0 +1,137 @@ +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#ifndef LWIP_PPPAPI_H +#define LWIP_PPPAPI_H + +#include "netif/ppp/ppp_opts.h" + +#if LWIP_PPP_API /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/sys.h" +#include "lwip/netif.h" +#include "lwip/priv/tcpip_priv.h" +#include "netif/ppp/ppp.h" +#if PPPOS_SUPPORT +#include "netif/ppp/pppos.h" +#endif /* PPPOS_SUPPORT */ + +#ifdef __cplusplus +extern "C" { +#endif + +struct pppapi_msg_msg { + ppp_pcb *ppp; + union { +#if PPP_NOTIFY_PHASE + struct { + ppp_notify_phase_cb_fn notify_phase_cb; + } setnotifyphasecb; +#endif /* PPP_NOTIFY_PHASE */ +#if PPPOS_SUPPORT + struct { + struct netif *pppif; + pppos_output_cb_fn output_cb; + ppp_link_status_cb_fn link_status_cb; + void *ctx_cb; + } serialcreate; +#endif /* PPPOS_SUPPORT */ +#if PPPOE_SUPPORT + struct { + struct netif *pppif; + struct netif *ethif; + const char *service_name; + const char *concentrator_name; + ppp_link_status_cb_fn link_status_cb; + void *ctx_cb; + } ethernetcreate; +#endif /* PPPOE_SUPPORT */ +#if PPPOL2TP_SUPPORT + struct { + struct netif *pppif; + struct netif *netif; + API_MSG_M_DEF_C(ip_addr_t, ipaddr); + u16_t port; +#if PPPOL2TP_AUTH_SUPPORT + const u8_t *secret; + u8_t secret_len; +#endif /* PPPOL2TP_AUTH_SUPPORT */ + ppp_link_status_cb_fn link_status_cb; + void *ctx_cb; + } l2tpcreate; +#endif /* PPPOL2TP_SUPPORT */ + struct { + u16_t holdoff; + } connect; + struct { + u8_t nocarrier; + } close; + struct { + u8_t cmd; + void *arg; + } ioctl; + } msg; +}; + +struct pppapi_msg { + struct tcpip_api_call_data call; + struct pppapi_msg_msg msg; +}; + +/* API for application */ +err_t pppapi_set_default(ppp_pcb *pcb); +#if PPP_NOTIFY_PHASE +err_t pppapi_set_notify_phase_callback(ppp_pcb *pcb, ppp_notify_phase_cb_fn notify_phase_cb); +#endif /* PPP_NOTIFY_PHASE */ +#if PPPOS_SUPPORT +ppp_pcb *pppapi_pppos_create(struct netif *pppif, pppos_output_cb_fn output_cb, ppp_link_status_cb_fn link_status_cb, void *ctx_cb); +#endif /* PPPOS_SUPPORT */ +#if PPPOE_SUPPORT +ppp_pcb *pppapi_pppoe_create(struct netif *pppif, struct netif *ethif, const char *service_name, + const char *concentrator_name, ppp_link_status_cb_fn link_status_cb, + void *ctx_cb); +#endif /* PPPOE_SUPPORT */ +#if PPPOL2TP_SUPPORT +ppp_pcb *pppapi_pppol2tp_create(struct netif *pppif, struct netif *netif, ip_addr_t *ipaddr, u16_t port, + const u8_t *secret, u8_t secret_len, + ppp_link_status_cb_fn link_status_cb, void *ctx_cb); +#endif /* PPPOL2TP_SUPPORT */ +err_t pppapi_connect(ppp_pcb *pcb, u16_t holdoff); +#if PPP_SERVER +err_t pppapi_listen(ppp_pcb *pcb); +#endif /* PPP_SERVER */ +err_t pppapi_close(ppp_pcb *pcb, u8_t nocarrier); +err_t pppapi_free(ppp_pcb *pcb); +err_t pppapi_ioctl(ppp_pcb *pcb, u8_t cmd, void *arg); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_PPP_API */ + +#endif /* LWIP_PPPAPI_H */ diff --git a/middleware/lwip/src/include/netif/ppp/pppcrypt.h b/middleware/lwip/src/include/netif/ppp/pppcrypt.h new file mode 100644 index 0000000..c0230bb --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/pppcrypt.h @@ -0,0 +1,144 @@ +/* + * pppcrypt.c - PPP/DES linkage for MS-CHAP and EAP SRP-SHA1 + * + * Extracted from chap_ms.c by James Carlson. + * + * Copyright (c) 1995 Eric Rosenquist. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +/* This header file is included in all PPP modules needing hashes and/or ciphers */ + +#ifndef PPPCRYPT_H +#define PPPCRYPT_H + +/* + * If included PolarSSL copy is not used, user is expected to include + * external libraries in arch/cc.h (which is included by lwip/arch.h). + */ +#include "lwip/arch.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Map hashes and ciphers functions to PolarSSL + */ +#if !LWIP_USE_EXTERNAL_MBEDTLS + +#include "netif/ppp/polarssl/md4.h" +#define lwip_md4_context md4_context +#define lwip_md4_init(context) +#define lwip_md4_starts md4_starts +#define lwip_md4_update md4_update +#define lwip_md4_finish md4_finish +#define lwip_md4_free(context) + +#include "netif/ppp/polarssl/md5.h" +#define lwip_md5_context md5_context +#define lwip_md5_init(context) +#define lwip_md5_starts md5_starts +#define lwip_md5_update md5_update +#define lwip_md5_finish md5_finish +#define lwip_md5_free(context) + +#include "netif/ppp/polarssl/sha1.h" +#define lwip_sha1_context sha1_context +#define lwip_sha1_init(context) +#define lwip_sha1_starts sha1_starts +#define lwip_sha1_update sha1_update +#define lwip_sha1_finish sha1_finish +#define lwip_sha1_free(context) + +#include "netif/ppp/polarssl/des.h" +#define lwip_des_context des_context +#define lwip_des_init(context) +#define lwip_des_setkey_enc des_setkey_enc +#define lwip_des_crypt_ecb des_crypt_ecb +#define lwip_des_free(context) + +#include "netif/ppp/polarssl/arc4.h" +#define lwip_arc4_context arc4_context +#define lwip_arc4_init(context) +#define lwip_arc4_setup arc4_setup +#define lwip_arc4_crypt arc4_crypt +#define lwip_arc4_free(context) + +#endif /* !LWIP_USE_EXTERNAL_MBEDTLS */ + +/* + * Map hashes and ciphers functions to mbed TLS + */ +#if LWIP_USE_EXTERNAL_MBEDTLS + +#define lwip_md4_context mbedtls_md4_context +#define lwip_md4_init mbedtls_md4_init +#define lwip_md4_starts mbedtls_md4_starts +#define lwip_md4_update mbedtls_md4_update +#define lwip_md4_finish mbedtls_md4_finish +#define lwip_md4_free mbedtls_md4_free + +#define lwip_md5_context mbedtls_md5_context +#define lwip_md5_init mbedtls_md5_init +#define lwip_md5_starts mbedtls_md5_starts +#define lwip_md5_update mbedtls_md5_update +#define lwip_md5_finish mbedtls_md5_finish +#define lwip_md5_free mbedtls_md5_free + +#define lwip_sha1_context mbedtls_sha1_context +#define lwip_sha1_init mbedtls_sha1_init +#define lwip_sha1_starts mbedtls_sha1_starts +#define lwip_sha1_update mbedtls_sha1_update +#define lwip_sha1_finish mbedtls_sha1_finish +#define lwip_sha1_free mbedtls_sha1_free + +#define lwip_des_context mbedtls_des_context +#define lwip_des_init mbedtls_des_init +#define lwip_des_setkey_enc mbedtls_des_setkey_enc +#define lwip_des_crypt_ecb mbedtls_des_crypt_ecb +#define lwip_des_free mbedtls_des_free + +#define lwip_arc4_context mbedtls_arc4_context +#define lwip_arc4_init mbedtls_arc4_init +#define lwip_arc4_setup mbedtls_arc4_setup +#define lwip_arc4_crypt(context, buffer, length) mbedtls_arc4_crypt(context, length, buffer, buffer) +#define lwip_arc4_free mbedtls_arc4_free + +#endif /* LWIP_USE_EXTERNAL_MBEDTLS */ + +void pppcrypt_56_to_64_bit_key(u_char *key, u_char *des_key); + +#ifdef __cplusplus +} +#endif + +#endif /* PPPCRYPT_H */ + +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/pppdebug.h b/middleware/lwip/src/include/netif/ppp/pppdebug.h new file mode 100644 index 0000000..36ee4f9 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/pppdebug.h @@ -0,0 +1,88 @@ +/***************************************************************************** +* pppdebug.h - System debugging utilities. +* +* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. +* portions Copyright (c) 1998 Global Election Systems Inc. +* portions Copyright (c) 2001 by Cognizant Pty Ltd. +* +* The authors hereby grant permission to use, copy, modify, distribute, +* and license this software and its documentation for any purpose, provided +* that existing copyright notices are retained in all copies and that this +* notice and the following disclaimer are included verbatim in any +* distributions. No written agreement, license, or royalty fee is required +* for any of the authorized uses. +* +* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR +* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +* +****************************************************************************** +* REVISION HISTORY (please don't use tabs!) +* +* 03-01-01 Marc Boucher +* Ported to lwIP. +* 98-07-29 Guy Lancaster , Global Election Systems Inc. +* Original. +* +***************************************************************************** +*/ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef PPPDEBUG_H +#define PPPDEBUG_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Trace levels. */ +#define LOG_CRITICAL (PPP_DEBUG | LWIP_DBG_LEVEL_SEVERE) +#define LOG_ERR (PPP_DEBUG | LWIP_DBG_LEVEL_SEVERE) +#define LOG_NOTICE (PPP_DEBUG | LWIP_DBG_LEVEL_WARNING) +#define LOG_WARNING (PPP_DEBUG | LWIP_DBG_LEVEL_WARNING) +#define LOG_INFO (PPP_DEBUG) +#define LOG_DETAIL (PPP_DEBUG) +#define LOG_DEBUG (PPP_DEBUG) + +#if PPP_DEBUG + +#define MAINDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) +#define SYSDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) +#define FSMDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) +#define LCPDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) +#define IPCPDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) +#define IPV6CPDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) +#define UPAPDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) +#define CHAPDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) +#define PPPDEBUG(a, b) LWIP_DEBUGF(a, b) + +#else /* PPP_DEBUG */ + +#define MAINDEBUG(a) +#define SYSDEBUG(a) +#define FSMDEBUG(a) +#define LCPDEBUG(a) +#define IPCPDEBUG(a) +#define IPV6CPDEBUG(a) +#define UPAPDEBUG(a) +#define CHAPDEBUG(a) +#define PPPDEBUG(a, b) + +#endif /* PPP_DEBUG */ + +#ifdef __cplusplus +} +#endif + +#endif /* PPPDEBUG_H */ + +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/pppoe.h b/middleware/lwip/src/include/netif/ppp/pppoe.h new file mode 100644 index 0000000..8994d38 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/pppoe.h @@ -0,0 +1,187 @@ +/***************************************************************************** +* pppoe.h - PPP Over Ethernet implementation for lwIP. +* +* Copyright (c) 2006 by Marc Boucher, Services Informatiques (MBSI) inc. +* +* The authors hereby grant permission to use, copy, modify, distribute, +* and license this software and its documentation for any purpose, provided +* that existing copyright notices are retained in all copies and that this +* notice and the following disclaimer are included verbatim in any +* distributions. No written agreement, license, or royalty fee is required +* for any of the authorized uses. +* +* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR +* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +* +****************************************************************************** +* REVISION HISTORY +* +* 06-01-01 Marc Boucher +* Ported to lwIP. +*****************************************************************************/ + + + +/* based on NetBSD: if_pppoe.c,v 1.64 2006/01/31 23:50:15 martin Exp */ + +/*- + * Copyright (c) 2002 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Martin Husemann . + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPPOE_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef PPP_OE_H +#define PPP_OE_H + +#include "ppp.h" +#include "lwip/etharp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct pppoehdr { + PACK_STRUCT_FLD_8(u8_t vertype); + PACK_STRUCT_FLD_8(u8_t code); + PACK_STRUCT_FIELD(u16_t session); + PACK_STRUCT_FIELD(u16_t plen); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct pppoetag { + PACK_STRUCT_FIELD(u16_t tag); + PACK_STRUCT_FIELD(u16_t len); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + + +#define PPPOE_STATE_INITIAL 0 +#define PPPOE_STATE_PADI_SENT 1 +#define PPPOE_STATE_PADR_SENT 2 +#define PPPOE_STATE_SESSION 3 +/* passive */ +#define PPPOE_STATE_PADO_SENT 1 + +#define PPPOE_HEADERLEN sizeof(struct pppoehdr) +#define PPPOE_VERTYPE 0x11 /* VER=1, TYPE = 1 */ + +#define PPPOE_TAG_EOL 0x0000 /* end of list */ +#define PPPOE_TAG_SNAME 0x0101 /* service name */ +#define PPPOE_TAG_ACNAME 0x0102 /* access concentrator name */ +#define PPPOE_TAG_HUNIQUE 0x0103 /* host unique */ +#define PPPOE_TAG_ACCOOKIE 0x0104 /* AC cookie */ +#define PPPOE_TAG_VENDOR 0x0105 /* vendor specific */ +#define PPPOE_TAG_RELAYSID 0x0110 /* relay session id */ +#define PPPOE_TAG_SNAME_ERR 0x0201 /* service name error */ +#define PPPOE_TAG_ACSYS_ERR 0x0202 /* AC system error */ +#define PPPOE_TAG_GENERIC_ERR 0x0203 /* gerneric error */ + +#define PPPOE_CODE_PADI 0x09 /* Active Discovery Initiation */ +#define PPPOE_CODE_PADO 0x07 /* Active Discovery Offer */ +#define PPPOE_CODE_PADR 0x19 /* Active Discovery Request */ +#define PPPOE_CODE_PADS 0x65 /* Active Discovery Session confirmation */ +#define PPPOE_CODE_PADT 0xA7 /* Active Discovery Terminate */ + +#ifndef PPPOE_MAX_AC_COOKIE_LEN +#define PPPOE_MAX_AC_COOKIE_LEN 64 +#endif + +struct pppoe_softc { + struct pppoe_softc *next; + struct netif *sc_ethif; /* ethernet interface we are using */ + ppp_pcb *pcb; /* PPP PCB */ + + struct eth_addr sc_dest; /* hardware address of concentrator */ + u16_t sc_session; /* PPPoE session id */ + u8_t sc_state; /* discovery phase or session connected */ + +#if PPPOE_SCNAME_SUPPORT + const char *sc_service_name; /* if != NULL: requested name of service */ + const char *sc_concentrator_name; /* if != NULL: requested concentrator id */ +#endif /* PPPOE_SCNAME_SUPPORT */ + u8_t sc_ac_cookie[PPPOE_MAX_AC_COOKIE_LEN]; /* content of AC cookie we must echo back */ + u8_t sc_ac_cookie_len; /* length of cookie data */ +#ifdef PPPOE_SERVER + u8_t *sc_hunique; /* content of host unique we must echo back */ + u8_t sc_hunique_len; /* length of host unique */ +#endif + u8_t sc_padi_retried; /* number of PADI retries already done */ + u8_t sc_padr_retried; /* number of PADR retries already done */ +}; + + +#define pppoe_init() /* compatibility define, no initialization needed */ + +ppp_pcb *pppoe_create(struct netif *pppif, + struct netif *ethif, + const char *service_name, const char *concentrator_name, + ppp_link_status_cb_fn link_status_cb, void *ctx_cb); + +/* + * Functions called from lwIP + * DO NOT CALL FROM lwIP USER APPLICATION. + */ +void pppoe_disc_input(struct netif *netif, struct pbuf *p); +void pppoe_data_input(struct netif *netif, struct pbuf *p); + +#ifdef __cplusplus +} +#endif + +#endif /* PPP_OE_H */ + +#endif /* PPP_SUPPORT && PPPOE_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/pppol2tp.h b/middleware/lwip/src/include/netif/ppp/pppol2tp.h new file mode 100644 index 0000000..1221ca1 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/pppol2tp.h @@ -0,0 +1,209 @@ +/** + * @file + * Network Point to Point Protocol over Layer 2 Tunneling Protocol header file. + * + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPPOL2TP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef PPPOL2TP_H +#define PPPOL2TP_H + +#include "ppp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Timeout */ +#define PPPOL2TP_CONTROL_TIMEOUT (5*1000) /* base for quick timeout calculation */ +#define PPPOL2TP_SLOW_RETRY (60*1000) /* persistent retry interval */ + +#define PPPOL2TP_MAXSCCRQ 4 /* retry SCCRQ four times (quickly) */ +#define PPPOL2TP_MAXICRQ 4 /* retry IRCQ four times */ +#define PPPOL2TP_MAXICCN 4 /* retry ICCN four times */ + +/* L2TP header flags */ +#define PPPOL2TP_HEADERFLAG_CONTROL 0x8000 +#define PPPOL2TP_HEADERFLAG_LENGTH 0x4000 +#define PPPOL2TP_HEADERFLAG_SEQUENCE 0x0800 +#define PPPOL2TP_HEADERFLAG_OFFSET 0x0200 +#define PPPOL2TP_HEADERFLAG_PRIORITY 0x0100 +#define PPPOL2TP_HEADERFLAG_VERSION 0x0002 + +/* Mandatory bits for control: Control, Length, Sequence, Version 2 */ +#define PPPOL2TP_HEADERFLAG_CONTROL_MANDATORY (PPPOL2TP_HEADERFLAG_CONTROL|PPPOL2TP_HEADERFLAG_LENGTH|PPPOL2TP_HEADERFLAG_SEQUENCE|PPPOL2TP_HEADERFLAG_VERSION) +/* Forbidden bits for control: Offset, Priority */ +#define PPPOL2TP_HEADERFLAG_CONTROL_FORBIDDEN (PPPOL2TP_HEADERFLAG_OFFSET|PPPOL2TP_HEADERFLAG_PRIORITY) + +/* Mandatory bits for data: Version 2 */ +#define PPPOL2TP_HEADERFLAG_DATA_MANDATORY (PPPOL2TP_HEADERFLAG_VERSION) + +/* AVP (Attribute Value Pair) header */ +#define PPPOL2TP_AVPHEADERFLAG_MANDATORY 0x8000 +#define PPPOL2TP_AVPHEADERFLAG_HIDDEN 0x4000 +#define PPPOL2TP_AVPHEADERFLAG_LENGTHMASK 0x03ff + +/* -- AVP - Message type */ +#define PPPOL2TP_AVPTYPE_MESSAGE 0 /* Message type */ + +/* Control Connection Management */ +#define PPPOL2TP_MESSAGETYPE_SCCRQ 1 /* Start Control Connection Request */ +#define PPPOL2TP_MESSAGETYPE_SCCRP 2 /* Start Control Connection Reply */ +#define PPPOL2TP_MESSAGETYPE_SCCCN 3 /* Start Control Connection Connected */ +#define PPPOL2TP_MESSAGETYPE_STOPCCN 4 /* Stop Control Connection Notification */ +#define PPPOL2TP_MESSAGETYPE_HELLO 6 /* Hello */ +/* Call Management */ +#define PPPOL2TP_MESSAGETYPE_OCRQ 7 /* Outgoing Call Request */ +#define PPPOL2TP_MESSAGETYPE_OCRP 8 /* Outgoing Call Reply */ +#define PPPOL2TP_MESSAGETYPE_OCCN 9 /* Outgoing Call Connected */ +#define PPPOL2TP_MESSAGETYPE_ICRQ 10 /* Incoming Call Request */ +#define PPPOL2TP_MESSAGETYPE_ICRP 11 /* Incoming Call Reply */ +#define PPPOL2TP_MESSAGETYPE_ICCN 12 /* Incoming Call Connected */ +#define PPPOL2TP_MESSAGETYPE_CDN 14 /* Call Disconnect Notify */ +/* Error reporting */ +#define PPPOL2TP_MESSAGETYPE_WEN 15 /* WAN Error Notify */ +/* PPP Session Control */ +#define PPPOL2TP_MESSAGETYPE_SLI 16 /* Set Link Info */ + +/* -- AVP - Result code */ +#define PPPOL2TP_AVPTYPE_RESULTCODE 1 /* Result code */ +#define PPPOL2TP_RESULTCODE 1 /* General request to clear control connection */ + +/* -- AVP - Protocol version (!= L2TP Header version) */ +#define PPPOL2TP_AVPTYPE_VERSION 2 +#define PPPOL2TP_VERSION 0x0100 /* L2TP Protocol version 1, revision 0 */ + +/* -- AVP - Framing capabilities */ +#define PPPOL2TP_AVPTYPE_FRAMINGCAPABILITIES 3 /* Bearer capabilities */ +#define PPPOL2TP_FRAMINGCAPABILITIES 0x00000003 /* Async + Sync framing */ + +/* -- AVP - Bearer capabilities */ +#define PPPOL2TP_AVPTYPE_BEARERCAPABILITIES 4 /* Bearer capabilities */ +#define PPPOL2TP_BEARERCAPABILITIES 0x00000003 /* Analog + Digital Access */ + +/* -- AVP - Tie breaker */ +#define PPPOL2TP_AVPTYPE_TIEBREAKER 5 + +/* -- AVP - Host name */ +#define PPPOL2TP_AVPTYPE_HOSTNAME 7 /* Host name */ +#define PPPOL2TP_HOSTNAME "lwIP" /* FIXME: make it configurable */ + +/* -- AVP - Vendor name */ +#define PPPOL2TP_AVPTYPE_VENDORNAME 8 /* Vendor name */ +#define PPPOL2TP_VENDORNAME "lwIP" /* FIXME: make it configurable */ + +/* -- AVP - Assign tunnel ID */ +#define PPPOL2TP_AVPTYPE_TUNNELID 9 /* Assign Tunnel ID */ + +/* -- AVP - Receive window size */ +#define PPPOL2TP_AVPTYPE_RECEIVEWINDOWSIZE 10 /* Receive window size */ +#define PPPOL2TP_RECEIVEWINDOWSIZE 8 /* FIXME: make it configurable */ + +/* -- AVP - Challenge */ +#define PPPOL2TP_AVPTYPE_CHALLENGE 11 /* Challenge */ + +/* -- AVP - Cause code */ +#define PPPOL2TP_AVPTYPE_CAUSECODE 12 /* Cause code*/ + +/* -- AVP - Challenge response */ +#define PPPOL2TP_AVPTYPE_CHALLENGERESPONSE 13 /* Challenge response */ +#define PPPOL2TP_AVPTYPE_CHALLENGERESPONSE_SIZE 16 + +/* -- AVP - Assign session ID */ +#define PPPOL2TP_AVPTYPE_SESSIONID 14 /* Assign Session ID */ + +/* -- AVP - Call serial number */ +#define PPPOL2TP_AVPTYPE_CALLSERIALNUMBER 15 /* Call Serial Number */ + +/* -- AVP - Framing type */ +#define PPPOL2TP_AVPTYPE_FRAMINGTYPE 19 /* Framing Type */ +#define PPPOL2TP_FRAMINGTYPE 0x00000001 /* Sync framing */ + +/* -- AVP - TX Connect Speed */ +#define PPPOL2TP_AVPTYPE_TXCONNECTSPEED 24 /* TX Connect Speed */ +#define PPPOL2TP_TXCONNECTSPEED 100000000 /* Connect speed: 100 Mbits/s */ + +/* L2TP Session state */ +#define PPPOL2TP_STATE_INITIAL 0 +#define PPPOL2TP_STATE_SCCRQ_SENT 1 +#define PPPOL2TP_STATE_ICRQ_SENT 2 +#define PPPOL2TP_STATE_ICCN_SENT 3 +#define PPPOL2TP_STATE_DATA 4 + +#define PPPOL2TP_OUTPUT_DATA_HEADER_LEN 6 /* Our data header len */ + +/* + * PPPoL2TP interface control block. + */ +typedef struct pppol2tp_pcb_s pppol2tp_pcb; +struct pppol2tp_pcb_s { + ppp_pcb *ppp; /* PPP PCB */ + u8_t phase; /* L2TP phase */ + struct udp_pcb *udp; /* UDP L2TP Socket */ + struct netif *netif; /* Output interface, used as a default route */ + ip_addr_t remote_ip; /* LNS IP Address */ + u16_t remote_port; /* LNS port */ +#if PPPOL2TP_AUTH_SUPPORT + const u8_t *secret; /* Secret string */ + u8_t secret_len; /* Secret string length */ + u8_t secret_rv[16]; /* Random vector */ + u8_t challenge_hash[16]; /* Challenge response */ + u8_t send_challenge; /* Boolean whether the next sent packet should contains a challenge response */ +#endif /* PPPOL2TP_AUTH_SUPPORT */ + + u16_t tunnel_port; /* Tunnel port */ + u16_t our_ns; /* NS to peer */ + u16_t peer_nr; /* NR from peer */ + u16_t peer_ns; /* Expected NS from peer */ + u16_t source_tunnel_id; /* Tunnel ID assigned by peer */ + u16_t remote_tunnel_id; /* Tunnel ID assigned to peer */ + u16_t source_session_id; /* Session ID assigned by peer */ + u16_t remote_session_id; /* Session ID assigned to peer */ + + u8_t sccrq_retried; /* number of SCCRQ retries already done */ + u8_t icrq_retried; /* number of ICRQ retries already done */ + u8_t iccn_retried; /* number of ICCN retries already done */ +}; + + +/* Create a new L2TP session. */ +ppp_pcb *pppol2tp_create(struct netif *pppif, + struct netif *netif, const ip_addr_t *ipaddr, u16_t port, + const u8_t *secret, u8_t secret_len, + ppp_link_status_cb_fn link_status_cb, void *ctx_cb); + +#ifdef __cplusplus +} +#endif + +#endif /* PPPOL2TP_H */ +#endif /* PPP_SUPPORT && PPPOL2TP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/pppos.h b/middleware/lwip/src/include/netif/ppp/pppos.h new file mode 100644 index 0000000..380a965 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/pppos.h @@ -0,0 +1,126 @@ +/** + * @file + * Network Point to Point Protocol over Serial header file. + * + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPPOS_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef PPPOS_H +#define PPPOS_H + +#include "lwip/sys.h" + +#include "ppp.h" +#include "vj.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* PPP packet parser states. Current state indicates operation yet to be + * completed. */ +enum { + PDIDLE = 0, /* Idle state - waiting. */ + PDSTART, /* Process start flag. */ + PDADDRESS, /* Process address field. */ + PDCONTROL, /* Process control field. */ + PDPROTOCOL1, /* Process protocol field 1. */ + PDPROTOCOL2, /* Process protocol field 2. */ + PDDATA /* Process data byte. */ +}; + +/* PPPoS serial output callback function prototype */ +typedef u32_t (*pppos_output_cb_fn)(ppp_pcb *pcb, u8_t *data, u32_t len, void *ctx); + +/* + * Extended asyncmap - allows any character to be escaped. + */ +typedef u8_t ext_accm[32]; + +/* + * PPPoS interface control block. + */ +typedef struct pppos_pcb_s pppos_pcb; +struct pppos_pcb_s { + /* -- below are data that will NOT be cleared between two sessions */ + ppp_pcb *ppp; /* PPP PCB */ + pppos_output_cb_fn output_cb; /* PPP serial output callback */ + + /* -- below are data that will be cleared between two sessions + * + * last_xmit must be the first member of cleared members, because it is + * used to know which part must not be cleared. + */ + u32_t last_xmit; /* Time of last transmission. */ + ext_accm out_accm; /* Async-Ctl-Char-Map for output. */ + + /* flags */ + unsigned int open :1; /* Set if PPPoS is open */ + unsigned int pcomp :1; /* Does peer accept protocol compression? */ + unsigned int accomp :1; /* Does peer accept addr/ctl compression? */ + + /* PPPoS rx */ + ext_accm in_accm; /* Async-Ctl-Char-Map for input. */ + struct pbuf *in_head, *in_tail; /* The input packet. */ + u16_t in_protocol; /* The input protocol code. */ + u16_t in_fcs; /* Input Frame Check Sequence value. */ + u8_t in_state; /* The input process state. */ + u8_t in_escaped; /* Escape next character. */ +}; + +/* Create a new PPPoS session. */ +ppp_pcb *pppos_create(struct netif *pppif, pppos_output_cb_fn output_cb, + ppp_link_status_cb_fn link_status_cb, void *ctx_cb); + +#if !NO_SYS && !PPP_INPROC_IRQ_SAFE +/* Pass received raw characters to PPPoS to be decoded through lwIP TCPIP thread. */ +err_t pppos_input_tcpip(ppp_pcb *ppp, u8_t *s, int l); +#endif /* !NO_SYS && !PPP_INPROC_IRQ_SAFE */ + +/* PPP over Serial: this is the input function to be called for received data. */ +void pppos_input(ppp_pcb *ppp, u8_t* data, int len); + + +/* + * Functions called from lwIP + * DO NOT CALL FROM lwIP USER APPLICATION. + */ +#if !NO_SYS && !PPP_INPROC_IRQ_SAFE +err_t pppos_input_sys(struct pbuf *p, struct netif *inp); +#endif /* !NO_SYS && !PPP_INPROC_IRQ_SAFE */ + +#ifdef __cplusplus +} +#endif + +#endif /* PPPOS_H */ +#endif /* PPP_SUPPORT && PPPOL2TP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/upap.h b/middleware/lwip/src/include/netif/ppp/upap.h new file mode 100644 index 0000000..540d981 --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/upap.h @@ -0,0 +1,131 @@ +/* + * upap.h - User/Password Authentication Protocol definitions. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: upap.h,v 1.8 2002/12/04 23:03:33 paulus Exp $ + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef UPAP_H +#define UPAP_H + +#include "ppp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Packet header = Code, id, length. + */ +#define UPAP_HEADERLEN 4 + + +/* + * UPAP codes. + */ +#define UPAP_AUTHREQ 1 /* Authenticate-Request */ +#define UPAP_AUTHACK 2 /* Authenticate-Ack */ +#define UPAP_AUTHNAK 3 /* Authenticate-Nak */ + + +/* + * Client states. + */ +#define UPAPCS_INITIAL 0 /* Connection down */ +#define UPAPCS_CLOSED 1 /* Connection up, haven't requested auth */ +#define UPAPCS_PENDING 2 /* Connection down, have requested auth */ +#define UPAPCS_AUTHREQ 3 /* We've sent an Authenticate-Request */ +#define UPAPCS_OPEN 4 /* We've received an Ack */ +#define UPAPCS_BADAUTH 5 /* We've received a Nak */ + +/* + * Server states. + */ +#define UPAPSS_INITIAL 0 /* Connection down */ +#define UPAPSS_CLOSED 1 /* Connection up, haven't requested auth */ +#define UPAPSS_PENDING 2 /* Connection down, have requested auth */ +#define UPAPSS_LISTEN 3 /* Listening for an Authenticate */ +#define UPAPSS_OPEN 4 /* We've sent an Ack */ +#define UPAPSS_BADAUTH 5 /* We've sent a Nak */ + + +/* + * Timeouts. + */ +#if 0 /* moved to ppp_opts.h */ +#define UPAP_DEFTIMEOUT 3 /* Timeout (seconds) for retransmitting req */ +#define UPAP_DEFREQTIME 30 /* Time to wait for auth-req from peer */ +#endif /* moved to ppp_opts.h */ + +/* + * Each interface is described by upap structure. + */ +#if PAP_SUPPORT +typedef struct upap_state { + const char *us_user; /* User */ + u8_t us_userlen; /* User length */ + const char *us_passwd; /* Password */ + u8_t us_passwdlen; /* Password length */ + u8_t us_clientstate; /* Client state */ +#if PPP_SERVER + u8_t us_serverstate; /* Server state */ +#endif /* PPP_SERVER */ + u8_t us_id; /* Current id */ + u8_t us_transmits; /* Number of auth-reqs sent */ +} upap_state; +#endif /* PAP_SUPPORT */ + + +void upap_authwithpeer(ppp_pcb *pcb, const char *user, const char *password); +#if PPP_SERVER +void upap_authpeer(ppp_pcb *pcb); +#endif /* PPP_SERVER */ + +extern const struct protent pap_protent; + +#ifdef __cplusplus +} +#endif + +#endif /* UPAP_H */ +#endif /* PPP_SUPPORT && PAP_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/ppp/vj.h b/middleware/lwip/src/include/netif/ppp/vj.h new file mode 100644 index 0000000..4e6601c --- /dev/null +++ b/middleware/lwip/src/include/netif/ppp/vj.h @@ -0,0 +1,169 @@ +/* + * Definitions for tcp compression routines. + * + * $Id: vj.h,v 1.7 2010/02/22 17:52:09 goldsimon Exp $ + * + * Copyright (c) 1989 Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms are permitted + * provided that the above copyright notice and this paragraph are + * duplicated in all such forms and that any documentation, + * advertising materials, and other materials related to such + * distribution and use acknowledge that the software was developed + * by the University of California, Berkeley. The name of the + * University may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + * + * Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989: + * - Initial distribution. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && VJ_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#ifndef VJ_H +#define VJ_H + +#include "lwip/ip.h" +#include "lwip/priv/tcp_priv.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define MAX_SLOTS 16 /* must be > 2 and < 256 */ +#define MAX_HDR 128 + +/* + * Compressed packet format: + * + * The first octet contains the packet type (top 3 bits), TCP + * 'push' bit, and flags that indicate which of the 4 TCP sequence + * numbers have changed (bottom 5 bits). The next octet is a + * conversation number that associates a saved IP/TCP header with + * the compressed packet. The next two octets are the TCP checksum + * from the original datagram. The next 0 to 15 octets are + * sequence number changes, one change per bit set in the header + * (there may be no changes and there are two special cases where + * the receiver implicitly knows what changed -- see below). + * + * There are 5 numbers which can change (they are always inserted + * in the following order): TCP urgent pointer, window, + * acknowlegement, sequence number and IP ID. (The urgent pointer + * is different from the others in that its value is sent, not the + * change in value.) Since typical use of SLIP links is biased + * toward small packets (see comments on MTU/MSS below), changes + * use a variable length coding with one octet for numbers in the + * range 1 - 255 and 3 octets (0, MSB, LSB) for numbers in the + * range 256 - 65535 or 0. (If the change in sequence number or + * ack is more than 65535, an uncompressed packet is sent.) + */ + +/* + * Packet types (must not conflict with IP protocol version) + * + * The top nibble of the first octet is the packet type. There are + * three possible types: IP (not proto TCP or tcp with one of the + * control flags set); uncompressed TCP (a normal IP/TCP packet but + * with the 8-bit protocol field replaced by an 8-bit connection id -- + * this type of packet syncs the sender & receiver); and compressed + * TCP (described above). + * + * LSB of 4-bit field is TCP "PUSH" bit (a worthless anachronism) and + * is logically part of the 4-bit "changes" field that follows. Top + * three bits are actual packet type. For backward compatibility + * and in the interest of conserving bits, numbers are chosen so the + * IP protocol version number (4) which normally appears in this nibble + * means "IP packet". + */ + +/* packet types */ +#define TYPE_IP 0x40 +#define TYPE_UNCOMPRESSED_TCP 0x70 +#define TYPE_COMPRESSED_TCP 0x80 +#define TYPE_ERROR 0x00 + +/* Bits in first octet of compressed packet */ +#define NEW_C 0x40 /* flag bits for what changed in a packet */ +#define NEW_I 0x20 +#define NEW_S 0x08 +#define NEW_A 0x04 +#define NEW_W 0x02 +#define NEW_U 0x01 + +/* reserved, special-case values of above */ +#define SPECIAL_I (NEW_S|NEW_W|NEW_U) /* echoed interactive traffic */ +#define SPECIAL_D (NEW_S|NEW_A|NEW_W|NEW_U) /* unidirectional data */ +#define SPECIALS_MASK (NEW_S|NEW_A|NEW_W|NEW_U) + +#define TCP_PUSH_BIT 0x10 + + +/* + * "state" data for each active tcp conversation on the wire. This is + * basically a copy of the entire IP/TCP header from the last packet + * we saw from the conversation together with a small identifier + * the transmit & receive ends of the line use to locate saved header. + */ +struct cstate { + struct cstate *cs_next; /* next most recently used state (xmit only) */ + u16_t cs_hlen; /* size of hdr (receive only) */ + u8_t cs_id; /* connection # associated with this state */ + u8_t cs_filler; + union { + char csu_hdr[MAX_HDR]; + struct ip_hdr csu_ip; /* ip/tcp hdr from most recent packet */ + } vjcs_u; +}; +#define cs_ip vjcs_u.csu_ip +#define cs_hdr vjcs_u.csu_hdr + + +struct vjstat { + u32_t vjs_packets; /* outbound packets */ + u32_t vjs_compressed; /* outbound compressed packets */ + u32_t vjs_searches; /* searches for connection state */ + u32_t vjs_misses; /* times couldn't find conn. state */ + u32_t vjs_uncompressedin; /* inbound uncompressed packets */ + u32_t vjs_compressedin; /* inbound compressed packets */ + u32_t vjs_errorin; /* inbound unknown type packets */ + u32_t vjs_tossed; /* inbound packets tossed because of error */ +}; + +/* + * all the state data for one serial line (we need one of these per line). + */ +struct vjcompress { + struct cstate *last_cs; /* most recently used tstate */ + u8_t last_recv; /* last rcvd conn. id */ + u8_t last_xmit; /* last sent conn. id */ + u16_t flags; + u8_t maxSlotIndex; + u8_t compressSlot; /* Flag indicating OK to compress slot ID. */ +#if LINK_STATS + struct vjstat stats; +#endif + struct cstate tstate[MAX_SLOTS]; /* xmit connection states */ + struct cstate rstate[MAX_SLOTS]; /* receive connection states */ +}; + +/* flag values */ +#define VJF_TOSS 1U /* tossing rcvd frames because of input err */ + +extern void vj_compress_init (struct vjcompress *comp); +extern u8_t vj_compress_tcp (struct vjcompress *comp, struct pbuf **pb); +extern void vj_uncompress_err (struct vjcompress *comp); +extern int vj_uncompress_uncomp(struct pbuf *nb, struct vjcompress *comp); +extern int vj_uncompress_tcp (struct pbuf **nb, struct vjcompress *comp); + +#ifdef __cplusplus +} +#endif + +#endif /* VJ_H */ + +#endif /* PPP_SUPPORT && VJ_SUPPORT */ diff --git a/middleware/lwip/src/include/netif/slipif.h b/middleware/lwip/src/include/netif/slipif.h new file mode 100644 index 0000000..46d2010 --- /dev/null +++ b/middleware/lwip/src/include/netif/slipif.h @@ -0,0 +1,86 @@ +/** + * @file + * + * SLIP netif API + */ + +/* + * Copyright (c) 2001, Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Adam Dunkels + * + */ +#ifndef LWIP_HDR_NETIF_SLIPIF_H +#define LWIP_HDR_NETIF_SLIPIF_H + +#include "lwip/opt.h" +#include "lwip/netif.h" + +/** Set this to 1 to start a thread that blocks reading on the serial line + * (using sio_read()). + */ +#ifndef SLIP_USE_RX_THREAD +#define SLIP_USE_RX_THREAD !NO_SYS +#endif + +/** Set this to 1 to enable functions to pass in RX bytes from ISR context. + * If enabled, slipif_received_byte[s]() process incoming bytes and put assembled + * packets on a queue, which is fed into lwIP from slipif_poll(). + * If disabled, slipif_poll() polls the serial line (using sio_tryread()). + */ +#ifndef SLIP_RX_FROM_ISR +#define SLIP_RX_FROM_ISR 0 +#endif + +/** Set this to 1 (default for SLIP_RX_FROM_ISR) to queue incoming packets + * received by slipif_received_byte[s]() as long as PBUF_POOL pbufs are available. + * If disabled, packets will be dropped if more than one packet is received. + */ +#ifndef SLIP_RX_QUEUE +#define SLIP_RX_QUEUE SLIP_RX_FROM_ISR +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +err_t slipif_init(struct netif * netif); +void slipif_poll(struct netif *netif); +#if SLIP_RX_FROM_ISR +void slipif_process_rxqueue(struct netif *netif); +void slipif_received_byte(struct netif *netif, u8_t data); +void slipif_received_bytes(struct netif *netif, u8_t *data, u8_t len); +#endif /* SLIP_RX_FROM_ISR */ + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_NETIF_SLIPIF_H */ diff --git a/middleware/lwip/src/include/netif/zepif.h b/middleware/lwip/src/include/netif/zepif.h new file mode 100644 index 0000000..2a801b4 --- /dev/null +++ b/middleware/lwip/src/include/netif/zepif.h @@ -0,0 +1,81 @@ +/** + * @file + * + * A netif implementing the ZigBee Eencapsulation Protocol (ZEP). + * This is used to tunnel 6LowPAN over UDP. + */ + +/* + * Copyright (c) 2018 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_ZEPIF_H +#define LWIP_HDR_ZEPIF_H + +#include "lwip/opt.h" +#include "netif/lowpan6.h" + +#if LWIP_IPV6 && LWIP_UDP /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define ZEPIF_DEFAULT_UDP_PORT 17754 + +/** Pass this struct as 'state' to netif_add to control the behaviour + * of this netif. If NULL is passed, default behaviour is chosen */ +struct zepif_init { + /** The UDP port used to ZEP frames from (0 = default) */ + u16_t zep_src_udp_port; + /** The UDP port used to ZEP frames to (0 = default) */ + u16_t zep_dst_udp_port; + /** The IP address to sed ZEP frames from (NULL = ANY) */ + const ip_addr_t *zep_src_ip_addr; + /** The IP address to sed ZEP frames to (NULL = BROADCAST) */ + const ip_addr_t *zep_dst_ip_addr; + /** If != NULL, the udp pcb is bound to this netif */ + const struct netif *zep_netif; + /** MAC address of the 6LowPAN device */ + u8_t addr[6]; +}; + +err_t zepif_init(struct netif *netif); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_IPV6 && LWIP_UDP */ + +#endif /* LWIP_HDR_ZEPIF_H */ diff --git a/middleware/lwip/src/netif/FILES b/middleware/lwip/src/netif/FILES new file mode 100644 index 0000000..1ffd6f2 --- /dev/null +++ b/middleware/lwip/src/netif/FILES @@ -0,0 +1,23 @@ +This directory contains generic network interface device drivers that +do not contain any hardware or architecture specific code. The files +are: + +ethernet.c + Shared code for Ethernet based interfaces. + +lowpan6.c + A 6LoWPAN implementation as a netif. + +lowpan6_ble.c + A 6LoWPAN over Bluetooth Low Energy (BLE) implementation as netif, + according to RFC-7668. + +slipif.c + A generic implementation of the SLIP (Serial Line IP) + protocol. It requires a sio (serial I/O) module to work. + +ppp/ Point-to-Point Protocol stack + The lwIP PPP support is based from pppd (http://ppp.samba.org) with + huge changes to match code size and memory requirements for embedded + devices. Please read /doc/ppp.txt and ppp/PPPD_FOLLOWUP for a detailed + explanation. diff --git a/middleware/lwip/src/netif/bridgeif.c b/middleware/lwip/src/netif/bridgeif.c new file mode 100644 index 0000000..8a97bce --- /dev/null +++ b/middleware/lwip/src/netif/bridgeif.c @@ -0,0 +1,563 @@ +/** + * @file + * lwIP netif implementing an IEEE 802.1D MAC Bridge + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +/** + * @defgroup bridgeif IEEE 802.1D bridge + * @ingroup netifs + * This file implements an IEEE 802.1D bridge by using a multilayer netif approach + * (one hardware-independent netif for the bridge that uses hardware netifs for its ports). + * On transmit, the bridge selects the outgoing port(s). + * On receive, the port netif calls into the bridge (via its netif->input function) and + * the bridge selects the port(s) (and/or its netif->input function) to pass the received pbuf to. + * + * Usage: + * - add the port netifs just like you would when using them as dedicated netif without a bridge + * - only NETIF_FLAG_ETHARP/NETIF_FLAG_ETHERNET netifs are supported as bridge ports + * - add the bridge port netifs without IPv4 addresses (i.e. pass 'NULL, NULL, NULL') + * - don't add IPv6 addresses to the port netifs! + * - set up the bridge configuration in a global variable of type 'bridgeif_initdata_t' that contains + * - the MAC address of the bridge + * - some configuration options controlling the memory consumption (maximum number of ports + * and FDB entries) + * - e.g. for a bridge MAC address 00-01-02-03-04-05, 2 bridge ports, 1024 FDB entries + 16 static MAC entries: + * bridgeif_initdata_t mybridge_initdata = BRIDGEIF_INITDATA1(2, 1024, 16, ETH_ADDR(0, 1, 2, 3, 4, 5)); + * - add the bridge netif (with IPv4 config): + * struct netif bridge_netif; + * netif_add(&bridge_netif, &my_ip, &my_netmask, &my_gw, &mybridge_initdata, bridgeif_init, tcpip_input); + * NOTE: the passed 'input' function depends on BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT setting, + * which controls where the forwarding is done (netif low level input context vs. tcpip_thread) + * - set up all ports netifs and the bridge netif + * + * - When adding a port netif, NETIF_FLAG_ETHARP flag will be removed from a port + * to prevent ETHARP working on that port netif (we only want one IP per bridge not per port). + * - When adding a port netif, its input function is changed to call into the bridge. + * + * + * @todo: + * - compact static FDB entries (instead of walking the whole array) + * - add FDB query/read access + * - add FDB change callback (when learning or dropping auto-learned entries) + * - prefill FDB with MAC classes that should never be forwarded + * - multicast snooping? (and only forward group addresses to interested ports) + * - support removing ports + * - check SNMP integration + * - VLAN handling / trunk ports + * - priority handling? (although that largely depends on TX queue limitations and lwIP doesn't provide tx-done handling) + */ + +#include "netif/bridgeif.h" +#include "lwip/netif.h" +#include "lwip/sys.h" +#include "lwip/etharp.h" +#include "lwip/ethip6.h" +#include "lwip/snmp.h" +#include "lwip/timeouts.h" +#include + +#if LWIP_NUM_NETIF_CLIENT_DATA + +/* Define those to better describe your network interface. */ +#define IFNAME0 'b' +#define IFNAME1 'r' + +struct bridgeif_private_s; +typedef struct bridgeif_port_private_s { + struct bridgeif_private_s *bridge; + struct netif *port_netif; + u8_t port_num; +} bridgeif_port_t; + +typedef struct bridgeif_fdb_static_entry_s { + u8_t used; + bridgeif_portmask_t dst_ports; + struct eth_addr addr; +} bridgeif_fdb_static_entry_t; + +typedef struct bridgeif_private_s { + struct netif *netif; + struct eth_addr ethaddr; + u8_t max_ports; + u8_t num_ports; + bridgeif_port_t *ports; + u16_t max_fdbs_entries; + bridgeif_fdb_static_entry_t *fdbs; + u16_t max_fdbd_entries; + void *fdbd; +} bridgeif_private_t; + +/* netif data index to get the bridge on input */ +u8_t bridgeif_netif_client_id = 0xff; + +/** + * @ingroup bridgeif + * Add a static entry to the forwarding database. + * A static entry marks where frames to a specific eth address (unicast or group address) are + * forwarded. + * bits [0..(BRIDGEIF_MAX_PORTS-1)]: hw ports + * bit [BRIDGEIF_MAX_PORTS]: cpu port + * 0: drop + */ +err_t +bridgeif_fdb_add(struct netif *bridgeif, const struct eth_addr *addr, bridgeif_portmask_t ports) +{ + int i; + bridgeif_private_t *br; + BRIDGEIF_DECL_PROTECT(lev); + LWIP_ASSERT("invalid netif", bridgeif != NULL); + br = (bridgeif_private_t *)bridgeif->state; + LWIP_ASSERT("invalid state", br != NULL); + + BRIDGEIF_READ_PROTECT(lev); + for (i = 0; i < br->max_fdbs_entries; i++) { + if (!br->fdbs[i].used) { + BRIDGEIF_WRITE_PROTECT(lev); + if (!br->fdbs[i].used) { + br->fdbs[i].used = 1; + br->fdbs[i].dst_ports = ports; + memcpy(&br->fdbs[i].addr, addr, sizeof(struct eth_addr)); + BRIDGEIF_WRITE_UNPROTECT(lev); + BRIDGEIF_READ_UNPROTECT(lev); + return ERR_OK; + } + BRIDGEIF_WRITE_UNPROTECT(lev); + } + } + BRIDGEIF_READ_UNPROTECT(lev); + return ERR_MEM; +} + +/** + * @ingroup bridgeif + * Remove a static entry from the forwarding database + */ +err_t +bridgeif_fdb_remove(struct netif *bridgeif, const struct eth_addr *addr) +{ + int i; + bridgeif_private_t *br; + BRIDGEIF_DECL_PROTECT(lev); + LWIP_ASSERT("invalid netif", bridgeif != NULL); + br = (bridgeif_private_t *)bridgeif->state; + LWIP_ASSERT("invalid state", br != NULL); + + BRIDGEIF_READ_PROTECT(lev); + for (i = 0; i < br->max_fdbs_entries; i++) { + if (br->fdbs[i].used && !memcmp(&br->fdbs[i].addr, addr, sizeof(struct eth_addr))) { + BRIDGEIF_WRITE_PROTECT(lev); + if (br->fdbs[i].used && !memcmp(&br->fdbs[i].addr, addr, sizeof(struct eth_addr))) { + memset(&br->fdbs[i], 0, sizeof(bridgeif_fdb_static_entry_t)); + BRIDGEIF_WRITE_UNPROTECT(lev); + BRIDGEIF_READ_UNPROTECT(lev); + return ERR_OK; + } + BRIDGEIF_WRITE_UNPROTECT(lev); + } + } + BRIDGEIF_READ_UNPROTECT(lev); + return ERR_VAL; +} + +/** Get the forwarding port(s) (as bit mask) for the specified destination mac address */ +static bridgeif_portmask_t +bridgeif_find_dst_ports(bridgeif_private_t *br, struct eth_addr *dst_addr) +{ + int i; + BRIDGEIF_DECL_PROTECT(lev); + BRIDGEIF_READ_PROTECT(lev); + /* first check for static entries */ + for (i = 0; i < br->max_fdbs_entries; i++) { + if (br->fdbs[i].used) { + if (!memcmp(&br->fdbs[i].addr, dst_addr, sizeof(struct eth_addr))) { + bridgeif_portmask_t ret = br->fdbs[i].dst_ports; + BRIDGEIF_READ_UNPROTECT(lev); + return ret; + } + } + } + if (dst_addr->addr[0] & 1) { + /* no match found: flood remaining group address */ + BRIDGEIF_READ_UNPROTECT(lev); + return BR_FLOOD; + } + BRIDGEIF_READ_UNPROTECT(lev); + /* no match found: check dynamic fdb for port or fall back to flooding */ + return bridgeif_fdb_get_dst_ports(br->fdbd, dst_addr); +} + +/** Helper function to see if a destination mac belongs to the bridge + * (bridge netif or one of the port netifs), in which case the frame + * is sent to the cpu only. + */ +static int +bridgeif_is_local_mac(bridgeif_private_t *br, struct eth_addr *addr) +{ + int i; + BRIDGEIF_DECL_PROTECT(lev); + if (!memcmp(br->netif->hwaddr, addr, sizeof(struct eth_addr))) { + return 1; + } + BRIDGEIF_READ_PROTECT(lev); + for (i = 0; i < br->num_ports; i++) { + struct netif *portif = br->ports[i].port_netif; + if (portif != NULL) { + if (!memcmp(portif->hwaddr, addr, sizeof(struct eth_addr))) { + BRIDGEIF_READ_UNPROTECT(lev); + return 1; + } + } + } + BRIDGEIF_READ_UNPROTECT(lev); + return 0; +} + +/* Output helper function */ +static err_t +bridgeif_send_to_port(bridgeif_private_t *br, struct pbuf *p, u8_t dstport_idx) +{ + if (dstport_idx < BRIDGEIF_MAX_PORTS) { + /* possibly an external port */ + if (dstport_idx < br->max_ports) { + struct netif *portif = br->ports[dstport_idx].port_netif; + if ((portif != NULL) && (portif->linkoutput != NULL)) { + /* prevent sending out to rx port */ + if (netif_get_index(portif) != p->if_idx) { + if (netif_is_link_up(portif)) { + LWIP_DEBUGF(BRIDGEIF_FW_DEBUG, ("br -> flood(%p:%d) -> %d\n", (void *)p, p->if_idx, netif_get_index(portif))); + return portif->linkoutput(portif, p); + } + } + } + } + } else { + LWIP_ASSERT("invalid port index", dstport_idx == BRIDGEIF_MAX_PORTS); + } + return ERR_OK; +} + +/** Helper function to pass a pbuf to all ports marked in 'dstports' + */ +static err_t +bridgeif_send_to_ports(bridgeif_private_t *br, struct pbuf *p, bridgeif_portmask_t dstports) +{ + err_t err, ret_err = ERR_OK; + u8_t i; + bridgeif_portmask_t mask = 1; + BRIDGEIF_DECL_PROTECT(lev); + BRIDGEIF_READ_PROTECT(lev); + for (i = 0; i < BRIDGEIF_MAX_PORTS; i++, mask = (bridgeif_portmask_t)(mask << 1)) { + if (dstports & mask) { + err = bridgeif_send_to_port(br, p, i); + if (err != ERR_OK) { + ret_err = err; + } + } + } + BRIDGEIF_READ_UNPROTECT(lev); + return ret_err; +} + +/** Output function of the application port of the bridge (the one with an ip address). + * The forwarding port(s) where this pbuf is sent on is/are automatically selected + * from the FDB. + */ +static err_t +bridgeif_output(struct netif *netif, struct pbuf *p) +{ + err_t err; + bridgeif_private_t *br = (bridgeif_private_t *)netif->state; + struct eth_addr *dst = (struct eth_addr *)(p->payload); + + bridgeif_portmask_t dstports = bridgeif_find_dst_ports(br, dst); + err = bridgeif_send_to_ports(br, p, dstports); + + MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p->tot_len); + if (((u8_t *)p->payload)[0] & 1) { + /* broadcast or multicast packet*/ + MIB2_STATS_NETIF_INC(netif, ifoutnucastpkts); + } else { + /* unicast packet */ + MIB2_STATS_NETIF_INC(netif, ifoutucastpkts); + } + /* increase ifoutdiscards or ifouterrors on error */ + + LINK_STATS_INC(link.xmit); + + return err; +} + +/** The actual bridge input function. Port netif's input is changed to call + * here. This function decides where the frame is forwarded. + */ +static err_t +bridgeif_input(struct pbuf *p, struct netif *netif) +{ + u8_t rx_idx; + bridgeif_portmask_t dstports; + struct eth_addr *src, *dst; + bridgeif_private_t *br; + bridgeif_port_t *port; + if (p == NULL || netif == NULL) { + return ERR_VAL; + } + port = (bridgeif_port_t *)netif_get_client_data(netif, bridgeif_netif_client_id); + LWIP_ASSERT("port data not set", port != NULL); + if (port == NULL || port->bridge == NULL) { + return ERR_VAL; + } + br = (bridgeif_private_t *)port->bridge; + rx_idx = netif_get_index(netif); + /* store receive index in pbuf */ + p->if_idx = rx_idx; + + dst = (struct eth_addr *)p->payload; + src = (struct eth_addr *)(((u8_t *)p->payload) + sizeof(struct eth_addr)); + + if ((src->addr[0] & 1) == 0) { + /* update src for all non-group addresses */ + bridgeif_fdb_update_src(br->fdbd, src, port->port_num); + } + + if (dst->addr[0] & 1) { + /* group address -> flood + cpu? */ + dstports = bridgeif_find_dst_ports(br, dst); + bridgeif_send_to_ports(br, p, dstports); + if (dstports & (1 << BRIDGEIF_MAX_PORTS)) { + /* we pass the reference to ->input or have to free it */ + LWIP_DEBUGF(BRIDGEIF_FW_DEBUG, ("br -> input(%p)\n", (void *)p)); + if (br->netif->input(p, br->netif) != ERR_OK) { + pbuf_free(p); + } + } else { + /* all references done */ + pbuf_free(p); + } + /* always return ERR_OK here to prevent the caller freeing the pbuf */ + return ERR_OK; + } else { + /* is this for one of the local ports? */ + if (bridgeif_is_local_mac(br, dst)) { + /* yes, send to cpu port only */ + LWIP_DEBUGF(BRIDGEIF_FW_DEBUG, ("br -> input(%p)\n", (void *)p)); + return br->netif->input(p, br->netif); + } + + /* get dst port */ + dstports = bridgeif_find_dst_ports(br, dst); + bridgeif_send_to_ports(br, p, dstports); + /* no need to send to cpu, flooding is for external ports only */ + /* by this, we consumed the pbuf */ + pbuf_free(p); + /* always return ERR_OK here to prevent the caller freeing the pbuf */ + return ERR_OK; + } +} + +#if !BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT +/** Input function for port netifs used to synchronize into tcpip_thread. + */ +static err_t +bridgeif_tcpip_input(struct pbuf *p, struct netif *netif) +{ + return tcpip_inpkt(p, netif, bridgeif_input); +} +#endif /* BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT */ + +/** + * @ingroup bridgeif + * Initialization function passed to netif_add(). + * + * ATTENTION: A pointer to a @ref bridgeif_initdata_t must be passed as 'state' + * to @ref netif_add when adding the bridge. I supplies MAC address + * and controls memory allocation (number of ports, FDB size). + * + * @param netif the lwip network interface structure for this ethernetif + * @return ERR_OK if the loopif is initialized + * ERR_MEM if private data couldn't be allocated + * any other err_t on error + */ +err_t +bridgeif_init(struct netif *netif) +{ + bridgeif_initdata_t *init_data; + bridgeif_private_t *br; + size_t alloc_len_sizet; + mem_size_t alloc_len; + + LWIP_ASSERT("netif != NULL", (netif != NULL)); + LWIP_ASSERT("bridgeif needs an input callback", (netif->input != NULL)); +#if !BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT + if (netif->input == tcpip_input) { + LWIP_DEBUGF(BRIDGEIF_DEBUG | LWIP_DBG_ON, ("bridgeif does not need tcpip_input, use netif_input/ethernet_input instead")); + } +#endif + + if (bridgeif_netif_client_id == 0xFF) { + bridgeif_netif_client_id = netif_alloc_client_data_id(); + } + + init_data = (bridgeif_initdata_t *)netif->state; + LWIP_ASSERT("init_data != NULL", (init_data != NULL)); + LWIP_ASSERT("init_data->max_ports <= BRIDGEIF_MAX_PORTS", + init_data->max_ports <= BRIDGEIF_MAX_PORTS); + + alloc_len_sizet = sizeof(bridgeif_private_t) + (init_data->max_ports * sizeof(bridgeif_port_t) + (init_data->max_fdb_static_entries * sizeof(bridgeif_fdb_static_entry_t))); + alloc_len = (mem_size_t)alloc_len_sizet; + LWIP_ASSERT("alloc_len == alloc_len_sizet", alloc_len == alloc_len_sizet); + LWIP_DEBUGF(BRIDGEIF_DEBUG, ("bridgeif_init: allocating %d bytes for private data\n", (int)alloc_len)); + br = (bridgeif_private_t *)mem_calloc(1, alloc_len); + if (br == NULL) { + LWIP_DEBUGF(NETIF_DEBUG, ("bridgeif_init: out of memory\n")); + return ERR_MEM; + } + memcpy(&br->ethaddr, &init_data->ethaddr, sizeof(br->ethaddr)); + br->netif = netif; + + br->max_ports = init_data->max_ports; + br->ports = (bridgeif_port_t *)(br + 1); + + br->max_fdbs_entries = init_data->max_fdb_static_entries; + br->fdbs = (bridgeif_fdb_static_entry_t *)(((u8_t *)(br + 1)) + (init_data->max_ports * sizeof(bridgeif_port_t))); + + br->max_fdbd_entries = init_data->max_fdb_dynamic_entries; + br->fdbd = bridgeif_fdb_init(init_data->max_fdb_dynamic_entries); + if (br->fdbd == NULL) { + LWIP_DEBUGF(NETIF_DEBUG, ("bridgeif_init: out of memory in fdb_init\n")); + mem_free(br); + return ERR_MEM; + } + +#if LWIP_NETIF_HOSTNAME + /* Initialize interface hostname */ + netif->hostname = "lwip"; +#endif /* LWIP_NETIF_HOSTNAME */ + + /* + * Initialize the snmp variables and counters inside the struct netif. + * The last argument should be replaced with your link speed, in units + * of bits per second. + */ + MIB2_INIT_NETIF(netif, snmp_ifType_ethernet_csmacd, 0); + + netif->state = br; + netif->name[0] = IFNAME0; + netif->name[1] = IFNAME1; + /* We directly use etharp_output() here to save a function call. + * You can instead declare your own function an call etharp_output() + * from it if you have to do some checks before sending (e.g. if link + * is available...) */ +#if LWIP_IPV4 + netif->output = etharp_output; +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + netif->output_ip6 = ethip6_output; +#endif /* LWIP_IPV6 */ + netif->linkoutput = bridgeif_output; + + /* set MAC hardware address length */ + netif->hwaddr_len = ETH_HWADDR_LEN; + + /* set MAC hardware address */ + memcpy(netif->hwaddr, &br->ethaddr, ETH_HWADDR_LEN); + + /* maximum transfer unit */ + netif->mtu = 1500; + + /* device capabilities */ + /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */ + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP | NETIF_FLAG_MLD6 | NETIF_FLAG_LINK_UP; + +#if LWIP_IPV6 && LWIP_IPV6_MLD + /* + * For hardware/netifs that implement MAC filtering. + * All-nodes link-local is handled by default, so we must let the hardware know + * to allow multicast packets in. + * Should set mld_mac_filter previously. */ + if (netif->mld_mac_filter != NULL) { + ip6_addr_t ip6_allnodes_ll; + ip6_addr_set_allnodes_linklocal(&ip6_allnodes_ll); + netif->mld_mac_filter(netif, &ip6_allnodes_ll, NETIF_ADD_MAC_FILTER); + } +#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ + + return ERR_OK; +} + +/** + * @ingroup bridgeif + * Add a port to the bridge + */ +err_t +bridgeif_add_port(struct netif *bridgeif, struct netif *portif) +{ + bridgeif_private_t *br; + bridgeif_port_t *port; + + LWIP_ASSERT("bridgeif != NULL", bridgeif != NULL); + LWIP_ASSERT("bridgeif->state != NULL", bridgeif->state != NULL); + LWIP_ASSERT("portif != NULL", portif != NULL); + + if (!(portif->flags & NETIF_FLAG_ETHARP) || !(portif->flags & NETIF_FLAG_ETHERNET)) { + /* can only add ETHERNET/ETHARP interfaces */ + return ERR_VAL; + } + + br = (bridgeif_private_t *)bridgeif->state; + + if (br->num_ports >= br->max_ports) { + return ERR_VAL; + } + port = &br->ports[br->num_ports]; + port->port_netif = portif; + port->port_num = br->num_ports; + port->bridge = br; + br->num_ports++; + + /* let the port call us on input */ +#if BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT + portif->input = bridgeif_input; +#else + portif->input = bridgeif_tcpip_input; +#endif + /* store pointer to bridge in netif */ + netif_set_client_data(portif, bridgeif_netif_client_id, port); + /* remove ETHARP flag to prevent sending report events on netif-up */ + netif_clear_flags(portif, NETIF_FLAG_ETHARP); + + return ERR_OK; +} + +#endif /* LWIP_NUM_NETIF_CLIENT_DATA */ diff --git a/middleware/lwip/src/netif/bridgeif_fdb.c b/middleware/lwip/src/netif/bridgeif_fdb.c new file mode 100644 index 0000000..2f052ec --- /dev/null +++ b/middleware/lwip/src/netif/bridgeif_fdb.c @@ -0,0 +1,212 @@ +/** + * @file + * lwIP netif implementing an FDB for IEEE 802.1D MAC Bridge + */ + +/* + * Copyright (c) 2017 Simon Goldschmidt. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +/** + * @defgroup bridgeif_fdb FDB example code + * @ingroup bridgeif + * This file implements an example for an FDB (Forwarding DataBase) + */ + +#include "netif/bridgeif.h" +#include "lwip/sys.h" +#include "lwip/mem.h" +#include "lwip/timeouts.h" +#include + +#define BRIDGEIF_AGE_TIMER_MS 1000 + +#define BR_FDB_TIMEOUT_SEC (60*5) /* 5 minutes FDB timeout */ + +typedef struct bridgeif_dfdb_entry_s { + u8_t used; + u8_t port; + u32_t ts; + struct eth_addr addr; +} bridgeif_dfdb_entry_t; + +typedef struct bridgeif_dfdb_s { + u16_t max_fdb_entries; + bridgeif_dfdb_entry_t *fdb; +} bridgeif_dfdb_t; + +/** + * @ingroup bridgeif_fdb + * A real simple and slow implementation of an auto-learning forwarding database that + * remembers known src mac addresses to know which port to send frames destined for that + * mac address. + * + * ATTENTION: This is meant as an example only, in real-world use, you should + * provide a better implementation :-) + */ +void +bridgeif_fdb_update_src(void *fdb_ptr, struct eth_addr *src_addr, u8_t port_idx) +{ + int i; + bridgeif_dfdb_t *fdb = (bridgeif_dfdb_t *)fdb_ptr; + BRIDGEIF_DECL_PROTECT(lev); + BRIDGEIF_READ_PROTECT(lev); + for (i = 0; i < fdb->max_fdb_entries; i++) { + bridgeif_dfdb_entry_t *e = &fdb->fdb[i]; + if (e->used && e->ts) { + if (!memcmp(&e->addr, src_addr, sizeof(struct eth_addr))) { + LWIP_DEBUGF(BRIDGEIF_FDB_DEBUG, ("br: update src %02x:%02x:%02x:%02x:%02x:%02x (from %d) @ idx %d\n", + src_addr->addr[0], src_addr->addr[1], src_addr->addr[2], src_addr->addr[3], src_addr->addr[4], src_addr->addr[5], + port_idx, i)); + BRIDGEIF_WRITE_PROTECT(lev); + e->ts = BR_FDB_TIMEOUT_SEC; + e->port = port_idx; + BRIDGEIF_WRITE_UNPROTECT(lev); + BRIDGEIF_READ_UNPROTECT(lev); + return; + } + } + } + /* not found, allocate new entry from free */ + for (i = 0; i < fdb->max_fdb_entries; i++) { + bridgeif_dfdb_entry_t *e = &fdb->fdb[i]; + if (!e->used || !e->ts) { + BRIDGEIF_WRITE_PROTECT(lev); + /* check again when protected */ + if (!e->used || !e->ts) { + LWIP_DEBUGF(BRIDGEIF_FDB_DEBUG, ("br: create src %02x:%02x:%02x:%02x:%02x:%02x (from %d) @ idx %d\n", + src_addr->addr[0], src_addr->addr[1], src_addr->addr[2], src_addr->addr[3], src_addr->addr[4], src_addr->addr[5], + port_idx, i)); + memcpy(&e->addr, src_addr, sizeof(struct eth_addr)); + e->ts = BR_FDB_TIMEOUT_SEC; + e->port = port_idx; + e->used = 1; + BRIDGEIF_WRITE_UNPROTECT(lev); + BRIDGEIF_READ_UNPROTECT(lev); + return; + } + BRIDGEIF_WRITE_UNPROTECT(lev); + } + } + BRIDGEIF_READ_UNPROTECT(lev); + /* not found, no free entry -> flood */ +} + +/** + * @ingroup bridgeif_fdb + * Walk our list of auto-learnt fdb entries and return a port to forward or BR_FLOOD if unknown + */ +bridgeif_portmask_t +bridgeif_fdb_get_dst_ports(void *fdb_ptr, struct eth_addr *dst_addr) +{ + int i; + bridgeif_dfdb_t *fdb = (bridgeif_dfdb_t *)fdb_ptr; + BRIDGEIF_DECL_PROTECT(lev); + BRIDGEIF_READ_PROTECT(lev); + for (i = 0; i < fdb->max_fdb_entries; i++) { + bridgeif_dfdb_entry_t *e = &fdb->fdb[i]; + if (e->used && e->ts) { + if (!memcmp(&e->addr, dst_addr, sizeof(struct eth_addr))) { + bridgeif_portmask_t ret = (bridgeif_portmask_t)(1 << e->port); + BRIDGEIF_READ_UNPROTECT(lev); + return ret; + } + } + } + BRIDGEIF_READ_UNPROTECT(lev); + return BR_FLOOD; +} + +/** + * @ingroup bridgeif_fdb + * Aging implementation of our simple fdb + */ +static void +bridgeif_fdb_age_one_second(void *fdb_ptr) +{ + int i; + bridgeif_dfdb_t *fdb; + BRIDGEIF_DECL_PROTECT(lev); + + fdb = (bridgeif_dfdb_t *)fdb_ptr; + BRIDGEIF_READ_PROTECT(lev); + + for (i = 0; i < fdb->max_fdb_entries; i++) { + bridgeif_dfdb_entry_t *e = &fdb->fdb[i]; + if (e->used && e->ts) { + BRIDGEIF_WRITE_PROTECT(lev); + /* check again when protected */ + if (e->used && e->ts) { + if (--e->ts == 0) { + e->used = 0; + } + } + BRIDGEIF_WRITE_UNPROTECT(lev); + } + } + BRIDGEIF_READ_UNPROTECT(lev); +} + +/** Timer callback for fdb aging, called once per second */ +static void +bridgeif_age_tmr(void *arg) +{ + bridgeif_dfdb_t *fdb = (bridgeif_dfdb_t *)arg; + + LWIP_ASSERT("invalid arg", arg != NULL); + + bridgeif_fdb_age_one_second(fdb); + sys_timeout(BRIDGEIF_AGE_TIMER_MS, bridgeif_age_tmr, arg); +} + +/** + * @ingroup bridgeif_fdb + * Init our simple fdb list + */ +void * +bridgeif_fdb_init(u16_t max_fdb_entries) +{ + bridgeif_dfdb_t *fdb; + size_t alloc_len_sizet = sizeof(bridgeif_dfdb_t) + (max_fdb_entries * sizeof(bridgeif_dfdb_entry_t)); + mem_size_t alloc_len = (mem_size_t)alloc_len_sizet; + LWIP_ASSERT("alloc_len == alloc_len_sizet", alloc_len == alloc_len_sizet); + LWIP_DEBUGF(BRIDGEIF_DEBUG, ("bridgeif_fdb_init: allocating %d bytes for private FDB data\n", (int)alloc_len)); + fdb = (bridgeif_dfdb_t *)mem_calloc(1, alloc_len); + if (fdb == NULL) { + return NULL; + } + fdb->max_fdb_entries = max_fdb_entries; + fdb->fdb = (bridgeif_dfdb_entry_t *)(fdb + 1); + + sys_timeout(BRIDGEIF_AGE_TIMER_MS, bridgeif_age_tmr, fdb); + + return fdb; +} diff --git a/middleware/lwip/src/netif/ethernet.c b/middleware/lwip/src/netif/ethernet.c new file mode 100644 index 0000000..545ce46 --- /dev/null +++ b/middleware/lwip/src/netif/ethernet.c @@ -0,0 +1,329 @@ +/** + * @file + * Ethernet common functions + * + * @defgroup ethernet Ethernet + * @ingroup callbackstyle_api + */ + +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * Copyright (c) 2003-2004 Leon Woestenberg + * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "lwip/opt.h" + +#if LWIP_ARP || LWIP_ETHERNET + +#include "netif/ethernet.h" +#include "lwip/def.h" +#include "lwip/stats.h" +#include "lwip/etharp.h" +#include "lwip/ip.h" +#include "lwip/snmp.h" + +#include + +#include "netif/ppp/ppp_opts.h" +#if PPPOE_SUPPORT +#include "netif/ppp/pppoe.h" +#endif /* PPPOE_SUPPORT */ + +#ifdef LWIP_HOOK_FILENAME +#include LWIP_HOOK_FILENAME +#endif + +const struct eth_addr ethbroadcast = {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}}; +const struct eth_addr ethzero = {{0, 0, 0, 0, 0, 0}}; + +/** + * @ingroup lwip_nosys + * Process received ethernet frames. Using this function instead of directly + * calling ip_input and passing ARP frames through etharp in ethernetif_input, + * the ARP cache is protected from concurrent access.
+ * Don't call directly, pass to netif_add() and call netif->input(). + * + * @param p the received packet, p->payload pointing to the ethernet header + * @param netif the network interface on which the packet was received + * + * @see LWIP_HOOK_UNKNOWN_ETH_PROTOCOL + * @see ETHARP_SUPPORT_VLAN + * @see LWIP_HOOK_VLAN_CHECK + */ +err_t +ethernet_input(struct pbuf *p, struct netif *netif) +{ + struct eth_hdr *ethhdr; + u16_t type; +#if LWIP_ARP || ETHARP_SUPPORT_VLAN || LWIP_IPV6 + u16_t next_hdr_offset = SIZEOF_ETH_HDR; +#endif /* LWIP_ARP || ETHARP_SUPPORT_VLAN */ + + LWIP_ASSERT_CORE_LOCKED(); + + if (p->len <= SIZEOF_ETH_HDR) { + /* a packet with only an ethernet header (or less) is not valid for us */ + ETHARP_STATS_INC(etharp.proterr); + ETHARP_STATS_INC(etharp.drop); + MIB2_STATS_NETIF_INC(netif, ifinerrors); + goto free_and_return; + } + + if (p->if_idx == NETIF_NO_INDEX) { + p->if_idx = netif_get_index(netif); + } + + /* points to packet payload, which starts with an Ethernet header */ + ethhdr = (struct eth_hdr *)p->payload; + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, + ("ethernet_input: dest:%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F", src:%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F", type:%"X16_F"\n", + (unsigned char)ethhdr->dest.addr[0], (unsigned char)ethhdr->dest.addr[1], (unsigned char)ethhdr->dest.addr[2], + (unsigned char)ethhdr->dest.addr[3], (unsigned char)ethhdr->dest.addr[4], (unsigned char)ethhdr->dest.addr[5], + (unsigned char)ethhdr->src.addr[0], (unsigned char)ethhdr->src.addr[1], (unsigned char)ethhdr->src.addr[2], + (unsigned char)ethhdr->src.addr[3], (unsigned char)ethhdr->src.addr[4], (unsigned char)ethhdr->src.addr[5], + lwip_htons(ethhdr->type))); + + type = ethhdr->type; +#if ETHARP_SUPPORT_VLAN + if (type == PP_HTONS(ETHTYPE_VLAN)) { + struct eth_vlan_hdr *vlan = (struct eth_vlan_hdr *)(((char *)ethhdr) + SIZEOF_ETH_HDR); + next_hdr_offset = SIZEOF_ETH_HDR + SIZEOF_VLAN_HDR; + if (p->len <= SIZEOF_ETH_HDR + SIZEOF_VLAN_HDR) { + /* a packet with only an ethernet/vlan header (or less) is not valid for us */ + ETHARP_STATS_INC(etharp.proterr); + ETHARP_STATS_INC(etharp.drop); + MIB2_STATS_NETIF_INC(netif, ifinerrors); + goto free_and_return; + } +#if defined(LWIP_HOOK_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK_FN) /* if not, allow all VLANs */ +#ifdef LWIP_HOOK_VLAN_CHECK + if (!LWIP_HOOK_VLAN_CHECK(netif, ethhdr, vlan)) { +#elif defined(ETHARP_VLAN_CHECK_FN) + if (!ETHARP_VLAN_CHECK_FN(ethhdr, vlan)) { +#elif defined(ETHARP_VLAN_CHECK) + if (VLAN_ID(vlan) != ETHARP_VLAN_CHECK) { +#endif + /* silently ignore this packet: not for our VLAN */ + pbuf_free(p); + return ERR_OK; + } +#endif /* defined(LWIP_HOOK_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK_FN) */ + type = vlan->tpid; + } +#endif /* ETHARP_SUPPORT_VLAN */ + +#if LWIP_ARP_FILTER_NETIF + netif = LWIP_ARP_FILTER_NETIF_FN(p, netif, lwip_htons(type)); +#endif /* LWIP_ARP_FILTER_NETIF*/ + + if (ethhdr->dest.addr[0] & 1) { + /* this might be a multicast or broadcast packet */ + if (ethhdr->dest.addr[0] == LL_IP4_MULTICAST_ADDR_0) { +#if LWIP_IPV4 + if ((ethhdr->dest.addr[1] == LL_IP4_MULTICAST_ADDR_1) && + (ethhdr->dest.addr[2] == LL_IP4_MULTICAST_ADDR_2)) { + /* mark the pbuf as link-layer multicast */ + p->flags |= PBUF_FLAG_LLMCAST; + } +#endif /* LWIP_IPV4 */ + } +#if LWIP_IPV6 + else if ((ethhdr->dest.addr[0] == LL_IP6_MULTICAST_ADDR_0) && + (ethhdr->dest.addr[1] == LL_IP6_MULTICAST_ADDR_1)) { + /* mark the pbuf as link-layer multicast */ + p->flags |= PBUF_FLAG_LLMCAST; + } +#endif /* LWIP_IPV6 */ + else if (eth_addr_cmp(ðhdr->dest, ðbroadcast)) { + /* mark the pbuf as link-layer broadcast */ + p->flags |= PBUF_FLAG_LLBCAST; + } + } + + switch (type) { +#if LWIP_IPV4 && LWIP_ARP + /* IP packet? */ + case PP_HTONS(ETHTYPE_IP): + if (!(netif->flags & NETIF_FLAG_ETHARP)) { + goto free_and_return; + } + /* skip Ethernet header (min. size checked above) */ + if (pbuf_remove_header(p, next_hdr_offset)) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, + ("ethernet_input: IPv4 packet dropped, too short (%"U16_F"/%"U16_F")\n", + p->tot_len, next_hdr_offset)); + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("Can't move over header in packet")); + goto free_and_return; + } else { + /* pass to IP layer */ + ip4_input(p, netif); + } + break; + + case PP_HTONS(ETHTYPE_ARP): + if (!(netif->flags & NETIF_FLAG_ETHARP)) { + goto free_and_return; + } + /* skip Ethernet header (min. size checked above) */ + if (pbuf_remove_header(p, next_hdr_offset)) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, + ("ethernet_input: ARP response packet dropped, too short (%"U16_F"/%"U16_F")\n", + p->tot_len, next_hdr_offset)); + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("Can't move over header in packet")); + ETHARP_STATS_INC(etharp.lenerr); + ETHARP_STATS_INC(etharp.drop); + goto free_and_return; + } else { + /* pass p to ARP module */ + etharp_input(p, netif); + } + break; +#endif /* LWIP_IPV4 && LWIP_ARP */ +#if PPPOE_SUPPORT + case PP_HTONS(ETHTYPE_PPPOEDISC): /* PPP Over Ethernet Discovery Stage */ + pppoe_disc_input(netif, p); + break; + + case PP_HTONS(ETHTYPE_PPPOE): /* PPP Over Ethernet Session Stage */ + pppoe_data_input(netif, p); + break; +#endif /* PPPOE_SUPPORT */ + +#if LWIP_IPV6 + case PP_HTONS(ETHTYPE_IPV6): /* IPv6 */ + /* skip Ethernet header */ + if ((p->len < next_hdr_offset) || pbuf_remove_header(p, next_hdr_offset)) { + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, + ("ethernet_input: IPv6 packet dropped, too short (%"U16_F"/%"U16_F")\n", + p->tot_len, next_hdr_offset)); + goto free_and_return; + } else { + /* pass to IPv6 layer */ + ip6_input(p, netif); + } + break; +#endif /* LWIP_IPV6 */ + + default: +#ifdef LWIP_HOOK_UNKNOWN_ETH_PROTOCOL + if (LWIP_HOOK_UNKNOWN_ETH_PROTOCOL(p, netif) == ERR_OK) { + break; + } +#endif + ETHARP_STATS_INC(etharp.proterr); + ETHARP_STATS_INC(etharp.drop); + MIB2_STATS_NETIF_INC(netif, ifinunknownprotos); + goto free_and_return; + } + + /* This means the pbuf is freed or consumed, + so the caller doesn't have to free it again */ + return ERR_OK; + +free_and_return: + pbuf_free(p); + return ERR_OK; +} + +/** + * @ingroup ethernet + * Send an ethernet packet on the network using netif->linkoutput(). + * The ethernet header is filled in before sending. + * + * @see LWIP_HOOK_VLAN_SET + * + * @param netif the lwIP network interface on which to send the packet + * @param p the packet to send. pbuf layer must be @ref PBUF_LINK. + * @param src the source MAC address to be copied into the ethernet header + * @param dst the destination MAC address to be copied into the ethernet header + * @param eth_type ethernet type (@ref lwip_ieee_eth_type) + * @return ERR_OK if the packet was sent, any other err_t on failure + */ +err_t +ethernet_output(struct netif * netif, struct pbuf * p, + const struct eth_addr * src, const struct eth_addr * dst, + u16_t eth_type) { + struct eth_hdr *ethhdr; + u16_t eth_type_be = lwip_htons(eth_type); + +#if ETHARP_SUPPORT_VLAN && (defined(LWIP_HOOK_VLAN_SET) || LWIP_VLAN_PCP) + s32_t vlan_prio_vid; +#ifdef LWIP_HOOK_VLAN_SET + vlan_prio_vid = LWIP_HOOK_VLAN_SET(netif, p, src, dst, eth_type); +#elif LWIP_VLAN_PCP + vlan_prio_vid = -1; + if (netif->hints && (netif->hints->tci >= 0)) { + vlan_prio_vid = (u16_t)netif->hints->tci; + } +#endif + if (vlan_prio_vid >= 0) { + struct eth_vlan_hdr *vlanhdr; + + LWIP_ASSERT("prio_vid must be <= 0xFFFF", vlan_prio_vid <= 0xFFFF); + + if (pbuf_add_header(p, SIZEOF_ETH_HDR + SIZEOF_VLAN_HDR) != 0) { + goto pbuf_header_failed; + } + vlanhdr = (struct eth_vlan_hdr *)(((u8_t *)p->payload) + SIZEOF_ETH_HDR); + vlanhdr->tpid = eth_type_be; + vlanhdr->prio_vid = lwip_htons((u16_t)vlan_prio_vid); + + eth_type_be = PP_HTONS(ETHTYPE_VLAN); + } else +#endif /* ETHARP_SUPPORT_VLAN && (defined(LWIP_HOOK_VLAN_SET) || LWIP_VLAN_PCP) */ + { + if (pbuf_add_header(p, SIZEOF_ETH_HDR) != 0) { + goto pbuf_header_failed; + } + } + + LWIP_ASSERT_CORE_LOCKED(); + + ethhdr = (struct eth_hdr *)p->payload; + ethhdr->type = eth_type_be; + SMEMCPY(ðhdr->dest, dst, ETH_HWADDR_LEN); + SMEMCPY(ðhdr->src, src, ETH_HWADDR_LEN); + + LWIP_ASSERT("netif->hwaddr_len must be 6 for ethernet_output!", + (netif->hwaddr_len == ETH_HWADDR_LEN)); + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, + ("ethernet_output: sending packet %p\n", (void *)p)); + + /* send the packet */ + return netif->linkoutput(netif, p); + +pbuf_header_failed: + LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, + ("ethernet_output: could not allocate room for header.\n")); + LINK_STATS_INC(link.lenerr); + return ERR_BUF; +} + +#endif /* LWIP_ARP || LWIP_ETHERNET */ diff --git a/middleware/lwip/src/netif/lowpan6.c b/middleware/lwip/src/netif/lowpan6.c new file mode 100644 index 0000000..72e46ee --- /dev/null +++ b/middleware/lwip/src/netif/lowpan6.c @@ -0,0 +1,921 @@ +/** + * @file + * + * 6LowPAN output for IPv6. Uses ND tables for link-layer addressing. Fragments packets to 6LowPAN units. + * + * This implementation aims to conform to IEEE 802.15.4(-2015), RFC 4944 and RFC 6282. + * @todo: RFC 6775. + */ + +/* + * Copyright (c) 2015 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +/** + * @defgroup sixlowpan 6LoWPAN (RFC4944) + * @ingroup netifs + * 6LowPAN netif implementation + */ + +#include "netif/lowpan6.h" + +#if LWIP_IPV6 + +#include "lwip/ip.h" +#include "lwip/pbuf.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/nd6.h" +#include "lwip/mem.h" +#include "lwip/udp.h" +#include "lwip/tcpip.h" +#include "lwip/snmp.h" +#include "netif/ieee802154.h" + +#include + +#if LWIP_6LOWPAN_802154_HW_CRC +#define LWIP_6LOWPAN_DO_CALC_CRC(buf, len) 0 +#else +#define LWIP_6LOWPAN_DO_CALC_CRC(buf, len) LWIP_6LOWPAN_CALC_CRC(buf, len) +#endif + +/** This is a helper struct for reassembly of fragments + * (IEEE 802.15.4 limits to 127 bytes) + */ +struct lowpan6_reass_helper { + struct lowpan6_reass_helper *next_packet; + struct pbuf *reass; + struct pbuf *frags; + u8_t timer; + struct lowpan6_link_addr sender_addr; + u16_t datagram_size; + u16_t datagram_tag; +}; + +/** This struct keeps track of per-netif state */ +struct lowpan6_ieee802154_data { + /** fragment reassembly list */ + struct lowpan6_reass_helper *reass_list; +#if LWIP_6LOWPAN_NUM_CONTEXTS > 0 + /** address context for compression */ + ip6_addr_t lowpan6_context[LWIP_6LOWPAN_NUM_CONTEXTS]; +#endif + /** Datagram Tag for fragmentation */ + u16_t tx_datagram_tag; + /** local PAN ID for IEEE 802.15.4 header */ + u16_t ieee_802154_pan_id; + /** Sequence Number for IEEE 802.15.4 transmission */ + u8_t tx_frame_seq_num; +}; + +/* Maximum frame size is 127 bytes minus CRC size */ +#define LOWPAN6_MAX_PAYLOAD (127 - 2) + +/** Currently, this state is global, since there's only one 6LoWPAN netif */ +static struct lowpan6_ieee802154_data lowpan6_data; + +#if LWIP_6LOWPAN_NUM_CONTEXTS > 0 +#define LWIP_6LOWPAN_CONTEXTS(netif) lowpan6_data.lowpan6_context +#else +#define LWIP_6LOWPAN_CONTEXTS(netif) NULL +#endif + +static const struct lowpan6_link_addr ieee_802154_broadcast = {2, {0xff, 0xff}}; + +#if LWIP_6LOWPAN_INFER_SHORT_ADDRESS +static struct lowpan6_link_addr short_mac_addr = {2, {0, 0}}; +#endif /* LWIP_6LOWPAN_INFER_SHORT_ADDRESS */ + +/* IEEE 802.15.4 specific functions: */ + +/** Write the IEEE 802.15.4 header that encapsulates the 6LoWPAN frame. + * Src and dst PAN IDs are filled with the ID set by @ref lowpan6_set_pan_id. + * + * Since the length is variable: + * @returns the header length + */ +static u8_t +lowpan6_write_iee802154_header(struct ieee_802154_hdr *hdr, const struct lowpan6_link_addr *src, + const struct lowpan6_link_addr *dst) +{ + u8_t ieee_header_len; + u8_t *buffer; + u8_t i; + u16_t fc; + + fc = IEEE_802154_FC_FT_DATA; /* send data packet (2003 frame version) */ + fc |= IEEE_802154_FC_PANID_COMPR; /* set PAN ID compression, for now src and dst PANs are equal */ + if (dst != &ieee_802154_broadcast) { + fc |= IEEE_802154_FC_ACK_REQ; /* data packet, no broadcast: ack required. */ + } + if (dst->addr_len == 2) { + fc |= IEEE_802154_FC_DST_ADDR_MODE_SHORT; + } else { + LWIP_ASSERT("invalid dst address length", dst->addr_len == 8); + fc |= IEEE_802154_FC_DST_ADDR_MODE_EXT; + } + if (src->addr_len == 2) { + fc |= IEEE_802154_FC_SRC_ADDR_MODE_SHORT; + } else { + LWIP_ASSERT("invalid src address length", src->addr_len == 8); + fc |= IEEE_802154_FC_SRC_ADDR_MODE_EXT; + } + hdr->frame_control = fc; + hdr->sequence_number = lowpan6_data.tx_frame_seq_num++; + hdr->destination_pan_id = lowpan6_data.ieee_802154_pan_id; /* pan id */ + + buffer = (u8_t *)hdr; + ieee_header_len = 5; + i = dst->addr_len; + /* reverse memcpy of dst addr */ + while (i-- > 0) { + buffer[ieee_header_len++] = dst->addr[i]; + } + /* Source PAN ID skipped due to PAN ID Compression */ + i = src->addr_len; + /* reverse memcpy of src addr */ + while (i-- > 0) { + buffer[ieee_header_len++] = src->addr[i]; + } + return ieee_header_len; +} + +/** Parse the IEEE 802.15.4 header from a pbuf. + * If successful, the header is hidden from the pbuf. + * + * PAN IDs and seuqence number are not checked + * + * @param p input pbuf, p->payload pointing at the IEEE 802.15.4 header + * @param src pointer to source address filled from the header + * @param dest pointer to destination address filled from the header + * @returns ERR_OK if successful + */ +static err_t +lowpan6_parse_iee802154_header(struct pbuf *p, struct lowpan6_link_addr *src, + struct lowpan6_link_addr *dest) +{ + u8_t *puc; + s8_t i; + u16_t frame_control, addr_mode; + u16_t datagram_offset; + + /* Parse IEEE 802.15.4 header */ + puc = (u8_t *)p->payload; + frame_control = puc[0] | (puc[1] << 8); + datagram_offset = 2; + if (frame_control & IEEE_802154_FC_SEQNO_SUPPR) { + if (IEEE_802154_FC_FRAME_VERSION_GET(frame_control) <= 1) { + /* sequence number suppressed, this is not valid for versions 0/1 */ + return ERR_VAL; + } + } else { + datagram_offset++; + } + datagram_offset += 2; /* Skip destination PAN ID */ + addr_mode = frame_control & IEEE_802154_FC_DST_ADDR_MODE_MASK; + if (addr_mode == IEEE_802154_FC_DST_ADDR_MODE_EXT) { + /* extended address (64 bit) */ + dest->addr_len = 8; + /* reverse memcpy: */ + for (i = 0; i < 8; i++) { + dest->addr[i] = puc[datagram_offset + 7 - i]; + } + datagram_offset += 8; + } else if (addr_mode == IEEE_802154_FC_DST_ADDR_MODE_SHORT) { + /* short address (16 bit) */ + dest->addr_len = 2; + /* reverse memcpy: */ + dest->addr[0] = puc[datagram_offset + 1]; + dest->addr[1] = puc[datagram_offset]; + datagram_offset += 2; + } else { + /* unsupported address mode (do we need "no address"?) */ + return ERR_VAL; + } + + if (!(frame_control & IEEE_802154_FC_PANID_COMPR)) { + /* No PAN ID compression, skip source PAN ID */ + datagram_offset += 2; + } + + addr_mode = frame_control & IEEE_802154_FC_SRC_ADDR_MODE_MASK; + if (addr_mode == IEEE_802154_FC_SRC_ADDR_MODE_EXT) { + /* extended address (64 bit) */ + src->addr_len = 8; + /* reverse memcpy: */ + for (i = 0; i < 8; i++) { + src->addr[i] = puc[datagram_offset + 7 - i]; + } + datagram_offset += 8; + } else if (addr_mode == IEEE_802154_FC_DST_ADDR_MODE_SHORT) { + /* short address (16 bit) */ + src->addr_len = 2; + src->addr[0] = puc[datagram_offset + 1]; + src->addr[1] = puc[datagram_offset]; + datagram_offset += 2; + } else { + /* unsupported address mode (do we need "no address"?) */ + return ERR_VAL; + } + + /* hide IEEE802.15.4 header. */ + if (pbuf_remove_header(p, datagram_offset)) { + return ERR_VAL; + } + return ERR_OK; +} + +/** Calculate the 16-bit CRC as required by IEEE 802.15.4 */ +u16_t +lowpan6_calc_crc(const void* buf, u16_t len) +{ +#define CCITT_POLY_16 0x8408U + u16_t i; + u8_t b; + u16_t crc = 0; + const u8_t* p = (const u8_t*)buf; + + for (i = 0; i < len; i++) { + u8_t data = *p; + for (b = 0U; b < 8U; b++) { + if (((data ^ crc) & 1) != 0) { + crc = (u16_t)((crc >> 1) ^ CCITT_POLY_16); + } else { + crc = (u16_t)(crc >> 1); + } + data = (u8_t)(data >> 1); + } + p++; + } + return crc; +} + +/* Fragmentation specific functions: */ + +static void +free_reass_datagram(struct lowpan6_reass_helper *lrh) +{ + if (lrh->reass) { + pbuf_free(lrh->reass); + } + if (lrh->frags) { + pbuf_free(lrh->frags); + } + mem_free(lrh); +} + +/** + * Removes a datagram from the reassembly queue. + **/ +static void +dequeue_datagram(struct lowpan6_reass_helper *lrh, struct lowpan6_reass_helper *prev) +{ + if (lowpan6_data.reass_list == lrh) { + lowpan6_data.reass_list = lowpan6_data.reass_list->next_packet; + } else { + /* it wasn't the first, so it must have a valid 'prev' */ + LWIP_ASSERT("sanity check linked list", prev != NULL); + prev->next_packet = lrh->next_packet; + } +} + +/** + * Periodic timer for 6LowPAN functions: + * + * - Remove incomplete/old packets + */ +void +lowpan6_tmr(void) +{ + struct lowpan6_reass_helper *lrh, *lrh_next, *lrh_prev = NULL; + + lrh = lowpan6_data.reass_list; + while (lrh != NULL) { + lrh_next = lrh->next_packet; + if ((--lrh->timer) == 0) { + dequeue_datagram(lrh, lrh_prev); + free_reass_datagram(lrh); + } else { + lrh_prev = lrh; + } + lrh = lrh_next; + } +} + +/* + * Encapsulates data into IEEE 802.15.4 frames. + * Fragments an IPv6 datagram into 6LowPAN units, which fit into IEEE 802.15.4 frames. + * If configured, will compress IPv6 and or UDP headers. + * */ +static err_t +lowpan6_frag(struct netif *netif, struct pbuf *p, const struct lowpan6_link_addr *src, const struct lowpan6_link_addr *dst) +{ + struct pbuf *p_frag; + u16_t frag_len, remaining_len, max_data_len; + u8_t *buffer; + u8_t ieee_header_len; + u8_t lowpan6_header_len; + u8_t hidden_header_len; + u16_t crc; + u16_t datagram_offset; + err_t err = ERR_IF; + + LWIP_ASSERT("lowpan6_frag: netif->linkoutput not set", netif->linkoutput != NULL); + + /* We'll use a dedicated pbuf for building 6LowPAN fragments. */ + p_frag = pbuf_alloc(PBUF_RAW, 127, PBUF_RAM); + if (p_frag == NULL) { + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + return ERR_MEM; + } + LWIP_ASSERT("this needs a pbuf in one piece", p_frag->len == p_frag->tot_len); + + /* Write IEEE 802.15.4 header. */ + buffer = (u8_t *)p_frag->payload; + ieee_header_len = lowpan6_write_iee802154_header((struct ieee_802154_hdr *)buffer, src, dst); + LWIP_ASSERT("ieee_header_len < p_frag->len", ieee_header_len < p_frag->len); + +#if LWIP_6LOWPAN_IPHC + /* Perform 6LowPAN IPv6 header compression according to RFC 6282 */ + /* do the header compression (this does NOT copy any non-compressed data) */ + err = lowpan6_compress_headers(netif, (u8_t *)p->payload, p->len, + &buffer[ieee_header_len], p_frag->len - ieee_header_len, &lowpan6_header_len, + &hidden_header_len, LWIP_6LOWPAN_CONTEXTS(netif), src, dst); + if (err != ERR_OK) { + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + pbuf_free(p_frag); + return err; + } + pbuf_remove_header(p, hidden_header_len); + +#else /* LWIP_6LOWPAN_IPHC */ + /* Send uncompressed IPv6 header with appropriate dispatch byte. */ + lowpan6_header_len = 1; + hidden_header_len = 0; + buffer[ieee_header_len] = 0x41; /* IPv6 dispatch */ +#endif /* LWIP_6LOWPAN_IPHC */ + + /* Calculate remaining packet length */ + remaining_len = p->tot_len; + + if (remaining_len > 0x7FF) { + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + /* datagram_size must fit into 11 bit */ + pbuf_free(p_frag); + return ERR_VAL; + } + + /* Fragment, or 1 packet? */ + max_data_len = LOWPAN6_MAX_PAYLOAD - ieee_header_len - lowpan6_header_len; + if (remaining_len > max_data_len) { + u16_t data_len; + /* We must move the 6LowPAN header to make room for the FRAG header. */ + memmove(&buffer[ieee_header_len + 4], &buffer[ieee_header_len], lowpan6_header_len); + + /* Now we need to fragment the packet. FRAG1 header first */ + buffer[ieee_header_len] = 0xc0 | (((p->tot_len + hidden_header_len) >> 8) & 0x7); + buffer[ieee_header_len + 1] = (p->tot_len + hidden_header_len) & 0xff; + + lowpan6_data.tx_datagram_tag++; + buffer[ieee_header_len + 2] = (lowpan6_data.tx_datagram_tag >> 8) & 0xff; + buffer[ieee_header_len + 3] = lowpan6_data.tx_datagram_tag & 0xff; + + /* Fragment follows. */ + data_len = (max_data_len - 4) & 0xf8; + frag_len = data_len + lowpan6_header_len; + + pbuf_copy_partial(p, buffer + ieee_header_len + lowpan6_header_len + 4, frag_len - lowpan6_header_len, 0); + remaining_len -= frag_len - lowpan6_header_len; + /* datagram offset holds the offset before compression */ + datagram_offset = frag_len - lowpan6_header_len + hidden_header_len; + LWIP_ASSERT("datagram offset must be a multiple of 8", (datagram_offset & 7) == 0); + + /* Calculate frame length */ + p_frag->len = p_frag->tot_len = ieee_header_len + 4 + frag_len + 2; /* add 2 bytes for crc*/ + + /* 2 bytes CRC */ + crc = LWIP_6LOWPAN_DO_CALC_CRC(p_frag->payload, p_frag->len - 2); + pbuf_take_at(p_frag, &crc, 2, p_frag->len - 2); + + /* send the packet */ + MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p_frag->tot_len); + LWIP_DEBUGF(LWIP_LOWPAN6_DEBUG | LWIP_DBG_TRACE, ("lowpan6_send: sending packet %p\n", (void *)p)); + err = netif->linkoutput(netif, p_frag); + + while ((remaining_len > 0) && (err == ERR_OK)) { + struct ieee_802154_hdr *hdr = (struct ieee_802154_hdr *)buffer; + /* new frame, new seq num for ACK */ + hdr->sequence_number = lowpan6_data.tx_frame_seq_num++; + + buffer[ieee_header_len] |= 0x20; /* Change FRAG1 to FRAGN */ + + LWIP_ASSERT("datagram offset must be a multiple of 8", (datagram_offset & 7) == 0); + buffer[ieee_header_len + 4] = (u8_t)(datagram_offset >> 3); /* datagram offset in FRAGN header (datagram_offset is max. 11 bit) */ + + frag_len = (127 - ieee_header_len - 5 - 2) & 0xf8; + if (frag_len > remaining_len) { + frag_len = remaining_len; + } + + pbuf_copy_partial(p, buffer + ieee_header_len + 5, frag_len, p->tot_len - remaining_len); + remaining_len -= frag_len; + datagram_offset += frag_len; + + /* Calculate frame length */ + p_frag->len = p_frag->tot_len = frag_len + 5 + ieee_header_len + 2; + + /* 2 bytes CRC */ + crc = LWIP_6LOWPAN_DO_CALC_CRC(p_frag->payload, p_frag->len - 2); + pbuf_take_at(p_frag, &crc, 2, p_frag->len - 2); + + /* send the packet */ + MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p_frag->tot_len); + LWIP_DEBUGF(LWIP_LOWPAN6_DEBUG | LWIP_DBG_TRACE, ("lowpan6_send: sending packet %p\n", (void *)p)); + err = netif->linkoutput(netif, p_frag); + } + } else { + /* It fits in one frame. */ + frag_len = remaining_len; + + /* Copy IPv6 packet */ + pbuf_copy_partial(p, buffer + ieee_header_len + lowpan6_header_len, frag_len, 0); + remaining_len = 0; + + /* Calculate frame length */ + p_frag->len = p_frag->tot_len = frag_len + lowpan6_header_len + ieee_header_len + 2; + LWIP_ASSERT("", p_frag->len <= 127); + + /* 2 bytes CRC */ + crc = LWIP_6LOWPAN_DO_CALC_CRC(p_frag->payload, p_frag->len - 2); + pbuf_take_at(p_frag, &crc, 2, p_frag->len - 2); + + /* send the packet */ + MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p_frag->tot_len); + LWIP_DEBUGF(LWIP_LOWPAN6_DEBUG | LWIP_DBG_TRACE, ("lowpan6_send: sending packet %p\n", (void *)p)); + err = netif->linkoutput(netif, p_frag); + } + + pbuf_free(p_frag); + + return err; +} + +/** + * @ingroup sixlowpan + * Set context + */ +err_t +lowpan6_set_context(u8_t idx, const ip6_addr_t *context) +{ +#if LWIP_6LOWPAN_NUM_CONTEXTS > 0 + if (idx >= LWIP_6LOWPAN_NUM_CONTEXTS) { + return ERR_ARG; + } + + IP6_ADDR_ZONECHECK(context); + + ip6_addr_set(&lowpan6_data.lowpan6_context[idx], context); + + return ERR_OK; +#else + LWIP_UNUSED_ARG(idx); + LWIP_UNUSED_ARG(context); + return ERR_ARG; +#endif +} + +#if LWIP_6LOWPAN_INFER_SHORT_ADDRESS +/** + * @ingroup sixlowpan + * Set short address + */ +err_t +lowpan6_set_short_addr(u8_t addr_high, u8_t addr_low) +{ + short_mac_addr.addr[0] = addr_high; + short_mac_addr.addr[1] = addr_low; + + return ERR_OK; +} +#endif /* LWIP_6LOWPAN_INFER_SHORT_ADDRESS */ + +/* Create IEEE 802.15.4 address from netif address */ +static err_t +lowpan6_hwaddr_to_addr(struct netif *netif, struct lowpan6_link_addr *addr) +{ + addr->addr_len = 8; + if (netif->hwaddr_len == 8) { + LWIP_ERROR("NETIF_MAX_HWADDR_LEN >= 8 required", sizeof(netif->hwaddr) >= netif->hwaddr_len, return ERR_VAL;); + SMEMCPY(addr->addr, netif->hwaddr, 8); + } else if (netif->hwaddr_len == 6) { + /* Copy from MAC-48 */ + SMEMCPY(addr->addr, netif->hwaddr, 3); + addr->addr[3] = addr->addr[4] = 0xff; + SMEMCPY(&addr->addr[5], &netif->hwaddr[3], 3); + } else { + /* Invalid address length, don't know how to convert this */ + return ERR_VAL; + } + return ERR_OK; +} + +/** + * @ingroup sixlowpan + * Resolve and fill-in IEEE 802.15.4 address header for outgoing IPv6 packet. + * + * Perform Header Compression and fragment if necessary. + * + * @param netif The lwIP network interface which the IP packet will be sent on. + * @param q The pbuf(s) containing the IP packet to be sent. + * @param ip6addr The IP address of the packet destination. + * + * @return err_t + */ +err_t +lowpan6_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr) +{ + err_t result; + const u8_t *hwaddr; + struct lowpan6_link_addr src, dest; +#if LWIP_6LOWPAN_INFER_SHORT_ADDRESS + ip6_addr_t ip6_src; + struct ip6_hdr *ip6_hdr; +#endif /* LWIP_6LOWPAN_INFER_SHORT_ADDRESS */ + +#if LWIP_6LOWPAN_INFER_SHORT_ADDRESS + /* Check if we can compress source address (use aligned copy) */ + ip6_hdr = (struct ip6_hdr *)q->payload; + ip6_addr_copy_from_packed(ip6_src, ip6_hdr->src); + ip6_addr_assign_zone(&ip6_src, IP6_UNICAST, netif); + if (lowpan6_get_address_mode(&ip6_src, &short_mac_addr) == 3) { + src.addr_len = 2; + src.addr[0] = short_mac_addr.addr[0]; + src.addr[1] = short_mac_addr.addr[1]; + } else +#endif /* LWIP_6LOWPAN_INFER_SHORT_ADDRESS */ + { + result = lowpan6_hwaddr_to_addr(netif, &src); + if (result != ERR_OK) { + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + return result; + } + } + + /* multicast destination IP address? */ + if (ip6_addr_ismulticast(ip6addr)) { + MIB2_STATS_NETIF_INC(netif, ifoutnucastpkts); + /* We need to send to the broadcast address.*/ + return lowpan6_frag(netif, q, &src, &ieee_802154_broadcast); + } + + /* We have a unicast destination IP address */ + /* @todo anycast? */ + +#if LWIP_6LOWPAN_INFER_SHORT_ADDRESS + if (src.addr_len == 2) { + /* If source address was compressible to short_mac_addr, and dest has same subnet and + * is also compressible to 2-bytes, assume we can infer dest as a short address too. */ + dest.addr_len = 2; + dest.addr[0] = ((u8_t *)q->payload)[38]; + dest.addr[1] = ((u8_t *)q->payload)[39]; + if ((src.addr_len == 2) && (ip6_addr_net_zoneless_eq(&ip6_hdr->src, &ip6_hdr->dest)) && + (lowpan6_get_address_mode(ip6addr, &dest) == 3)) { + MIB2_STATS_NETIF_INC(netif, ifoutucastpkts); + return lowpan6_frag(netif, q, &src, &dest); + } + } +#endif /* LWIP_6LOWPAN_INFER_SHORT_ADDRESS */ + + /* Ask ND6 what to do with the packet. */ + result = nd6_get_next_hop_addr_or_queue(netif, q, ip6addr, &hwaddr); + if (result != ERR_OK) { + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + return result; + } + + /* If no hardware address is returned, nd6 has queued the packet for later. */ + if (hwaddr == NULL) { + return ERR_OK; + } + + /* Send out the packet using the returned hardware address. */ + dest.addr_len = netif->hwaddr_len; + /* XXX: Inferring the length of the source address from the destination address + * is not correct for IEEE 802.15.4, but currently we don't get this information + * from the neighbor cache */ + SMEMCPY(dest.addr, hwaddr, netif->hwaddr_len); + MIB2_STATS_NETIF_INC(netif, ifoutucastpkts); + return lowpan6_frag(netif, q, &src, &dest); +} +/** + * @ingroup sixlowpan + * NETIF input function: don't free the input pbuf when returning != ERR_OK! + */ +err_t +lowpan6_input(struct pbuf *p, struct netif *netif) +{ + u8_t *puc, b; + s8_t i; + struct lowpan6_link_addr src, dest; + u16_t datagram_size = 0; + u16_t datagram_offset, datagram_tag; + struct lowpan6_reass_helper *lrh, *lrh_next, *lrh_prev = NULL; + + if (p == NULL) { + return ERR_OK; + } + + MIB2_STATS_NETIF_ADD(netif, ifinoctets, p->tot_len); + + if (p->len != p->tot_len) { + /* for now, this needs a pbuf in one piece */ + goto lowpan6_input_discard; + } + + if (lowpan6_parse_iee802154_header(p, &src, &dest) != ERR_OK) { + goto lowpan6_input_discard; + } + + /* Check dispatch. */ + puc = (u8_t *)p->payload; + + b = *puc; + if ((b & 0xf8) == 0xc0) { + /* FRAG1 dispatch. add this packet to reassembly list. */ + datagram_size = ((u16_t)(puc[0] & 0x07) << 8) | (u16_t)puc[1]; + datagram_tag = ((u16_t)puc[2] << 8) | (u16_t)puc[3]; + + /* check for duplicate */ + lrh = lowpan6_data.reass_list; + while (lrh != NULL) { + u8_t discard = 0; + lrh_next = lrh->next_packet; + if ((lrh->sender_addr.addr_len == src.addr_len) && + (memcmp(lrh->sender_addr.addr, src.addr, src.addr_len) == 0)) { + /* address match with packet in reassembly. */ + if ((datagram_tag == lrh->datagram_tag) && (datagram_size == lrh->datagram_size)) { + /* duplicate fragment. */ + goto lowpan6_input_discard; + } else { + /* We are receiving the start of a new datagram. Discard old one (incomplete). */ + discard = 1; + } + } + if (discard) { + dequeue_datagram(lrh, lrh_prev); + free_reass_datagram(lrh); + } else { + lrh_prev = lrh; + } + /* Check next datagram in queue. */ + lrh = lrh_next; + } + + pbuf_remove_header(p, 4); /* hide frag1 dispatch */ + + lrh = (struct lowpan6_reass_helper *) mem_malloc(sizeof(struct lowpan6_reass_helper)); + if (lrh == NULL) { + goto lowpan6_input_discard; + } + + lrh->sender_addr.addr_len = src.addr_len; + for (i = 0; i < src.addr_len; i++) { + lrh->sender_addr.addr[i] = src.addr[i]; + } + lrh->datagram_size = datagram_size; + lrh->datagram_tag = datagram_tag; + lrh->frags = NULL; + if (*(u8_t *)p->payload == 0x41) { + /* This is a complete IPv6 packet, just skip dispatch byte. */ + pbuf_remove_header(p, 1); /* hide dispatch byte. */ + lrh->reass = p; + } else if ((*(u8_t *)p->payload & 0xe0 ) == 0x60) { + lrh->reass = lowpan6_decompress(p, datagram_size, LWIP_6LOWPAN_CONTEXTS(netif), &src, &dest); + if (lrh->reass == NULL) { + /* decompression failed */ + mem_free(lrh); + goto lowpan6_input_discard; + } + } + /* TODO: handle the case where we already have FRAGN received */ + lrh->next_packet = lowpan6_data.reass_list; + lrh->timer = 2; + lowpan6_data.reass_list = lrh; + + return ERR_OK; + } else if ((b & 0xf8) == 0xe0) { + /* FRAGN dispatch, find packet being reassembled. */ + datagram_size = ((u16_t)(puc[0] & 0x07) << 8) | (u16_t)puc[1]; + datagram_tag = ((u16_t)puc[2] << 8) | (u16_t)puc[3]; + datagram_offset = (u16_t)puc[4] << 3; + pbuf_remove_header(p, 4); /* hide frag1 dispatch but keep datagram offset for reassembly */ + + for (lrh = lowpan6_data.reass_list; lrh != NULL; lrh_prev = lrh, lrh = lrh->next_packet) { + if ((lrh->sender_addr.addr_len == src.addr_len) && + (memcmp(lrh->sender_addr.addr, src.addr, src.addr_len) == 0) && + (datagram_tag == lrh->datagram_tag) && + (datagram_size == lrh->datagram_size)) { + break; + } + } + if (lrh == NULL) { + /* rogue fragment */ + goto lowpan6_input_discard; + } + /* Insert new pbuf into list of fragments. Each fragment is a pbuf, + this only works for unchained pbufs. */ + LWIP_ASSERT("p->next == NULL", p->next == NULL); + if (lrh->reass != NULL) { + /* FRAG1 already received, check this offset against first len */ + if (datagram_offset < lrh->reass->len) { + /* fragment overlap, discard old fragments */ + dequeue_datagram(lrh, lrh_prev); + free_reass_datagram(lrh); + goto lowpan6_input_discard; + } + } + if (lrh->frags == NULL) { + /* first FRAGN */ + lrh->frags = p; + } else { + /* find the correct place to insert */ + struct pbuf *q, *last; + u16_t new_frag_len = p->len - 1; /* p->len includes datagram_offset byte */ + for (q = lrh->frags, last = NULL; q != NULL; last = q, q = q->next) { + u16_t q_datagram_offset = ((u8_t *)q->payload)[0] << 3; + u16_t q_frag_len = q->len - 1; + if (datagram_offset < q_datagram_offset) { + if (datagram_offset + new_frag_len > q_datagram_offset) { + /* overlap, discard old fragments */ + dequeue_datagram(lrh, lrh_prev); + free_reass_datagram(lrh); + goto lowpan6_input_discard; + } + /* insert here */ + break; + } else if (datagram_offset == q_datagram_offset) { + if (q_frag_len != new_frag_len) { + /* fragment mismatch, discard old fragments */ + dequeue_datagram(lrh, lrh_prev); + free_reass_datagram(lrh); + goto lowpan6_input_discard; + } + /* duplicate, ignore */ + pbuf_free(p); + return ERR_OK; + } + } + /* insert fragment */ + if (last == NULL) { + lrh->frags = p; + } else { + last->next = p; + p->next = q; + } + } + /* check if all fragments were received */ + if (lrh->reass) { + u16_t offset = lrh->reass->len; + struct pbuf *q; + for (q = lrh->frags; q != NULL; q = q->next) { + u16_t q_datagram_offset = ((u8_t *)q->payload)[0] << 3; + if (q_datagram_offset != offset) { + /* not complete, wait for more fragments */ + return ERR_OK; + } + offset += q->len - 1; + } + if (offset == datagram_size) { + /* all fragments received, combine pbufs */ + u16_t datagram_left = datagram_size - lrh->reass->len; + for (q = lrh->frags; q != NULL; q = q->next) { + /* hide datagram_offset byte now */ + pbuf_remove_header(q, 1); + q->tot_len = datagram_left; + datagram_left -= q->len; + } + LWIP_ASSERT("datagram_left == 0", datagram_left == 0); + q = lrh->reass; + q->tot_len = datagram_size; + q->next = lrh->frags; + lrh->frags = NULL; + lrh->reass = NULL; + dequeue_datagram(lrh, lrh_prev); + mem_free(lrh); + + /* @todo: distinguish unicast/multicast */ + MIB2_STATS_NETIF_INC(netif, ifinucastpkts); + return ip6_input(q, netif); + } + } + /* pbuf enqueued, waiting for more fragments */ + return ERR_OK; + } else { + if (b == 0x41) { + /* This is a complete IPv6 packet, just skip dispatch byte. */ + pbuf_remove_header(p, 1); /* hide dispatch byte. */ + } else if ((b & 0xe0 ) == 0x60) { + /* IPv6 headers are compressed using IPHC. */ + p = lowpan6_decompress(p, datagram_size, LWIP_6LOWPAN_CONTEXTS(netif), &src, &dest); + if (p == NULL) { + MIB2_STATS_NETIF_INC(netif, ifindiscards); + return ERR_OK; + } + } else { + goto lowpan6_input_discard; + } + + /* @todo: distinguish unicast/multicast */ + MIB2_STATS_NETIF_INC(netif, ifinucastpkts); + + return ip6_input(p, netif); + } +lowpan6_input_discard: + MIB2_STATS_NETIF_INC(netif, ifindiscards); + pbuf_free(p); + /* always return ERR_OK here to prevent the caller freeing the pbuf */ + return ERR_OK; +} + +/** + * @ingroup sixlowpan + */ +err_t +lowpan6_if_init(struct netif *netif) +{ + netif->name[0] = 'L'; + netif->name[1] = '6'; + netif->output_ip6 = lowpan6_output; + + MIB2_INIT_NETIF(netif, snmp_ifType_other, 0); + + /* maximum transfer unit */ + netif->mtu = IP6_MIN_MTU_LENGTH; + + /* broadcast capability */ + netif->flags = NETIF_FLAG_BROADCAST /* | NETIF_FLAG_LOWPAN6 */; + + return ERR_OK; +} + +/** + * @ingroup sixlowpan + * Set PAN ID + */ +err_t +lowpan6_set_pan_id(u16_t pan_id) +{ + lowpan6_data.ieee_802154_pan_id = pan_id; + + return ERR_OK; +} + +#if !NO_SYS +/** + * @ingroup sixlowpan + * Pass a received packet to tcpip_thread for input processing + * + * @param p the received packet, p->payload pointing to the + * IEEE 802.15.4 header. + * @param inp the network interface on which the packet was received + */ +err_t +tcpip_6lowpan_input(struct pbuf *p, struct netif *inp) +{ + return tcpip_inpkt(p, inp, lowpan6_input); +} +#endif /* !NO_SYS */ + +#endif /* LWIP_IPV6 */ diff --git a/middleware/lwip/src/netif/lowpan6_ble.c b/middleware/lwip/src/netif/lowpan6_ble.c new file mode 100644 index 0000000..cca8bb1 --- /dev/null +++ b/middleware/lwip/src/netif/lowpan6_ble.c @@ -0,0 +1,447 @@ +/** + * @file + * 6LowPAN over BLE output for IPv6 (RFC7668). +*/ + +/* + * Copyright (c) 2017 Benjamin Aigner + * Copyright (c) 2015 Inico Technologies Ltd. , Author: Ivan Delamer + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * Author: Benjamin Aigner + * + * Based on the original 6lowpan implementation of lwIP ( @see 6lowpan.c) + */ + + +/** + * @defgroup rfc7668if 6LoWPAN over BLE (RFC7668) + * @ingroup netifs + * This file implements a RFC7668 implementation for 6LoWPAN over + * Bluetooth Low Energy. The specification is very similar to 6LoWPAN, + * so most of the code is re-used. + * Compared to 6LoWPAN, much functionality is already implemented in + * lower BLE layers (fragmenting, session management,...). + * + * Usage: + * - add this netif + * - don't add IPv4 addresses (no IPv4 support in RFC7668), pass 'NULL','NULL','NULL' + * - use the BLE to EUI64 conversation util to create an IPv6 link-local address from the BLE MAC (@ref ble_addr_to_eui64) + * - input function: @ref rfc7668_input + * - set the link output function, which transmits output data to an established L2CAP channel + * - If data arrives (HCI event "L2CAP_DATA_PACKET"): + * - allocate a @ref PBUF_RAW buffer + * - let the pbuf struct point to the incoming data or copy it to the buffer + * - call netif->input + * + * @todo: + * - further testing + * - support compression contexts + * - support multiple addresses + * - support multicast + * - support neighbor discovery + */ + + +#include "netif/lowpan6_ble.h" + +#if LWIP_IPV6 + +#include "lwip/ip.h" +#include "lwip/pbuf.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/nd6.h" +#include "lwip/mem.h" +#include "lwip/udp.h" +#include "lwip/tcpip.h" +#include "lwip/snmp.h" + +#include + +#if LWIP_6LOWPAN_NUM_CONTEXTS > 0 +/** context memory, containing IPv6 addresses */ +static ip6_addr_t rfc7668_context[LWIP_6LOWPAN_NUM_CONTEXTS]; +#else +#define rfc7668_context NULL +#endif + +static struct lowpan6_link_addr rfc7668_local_addr; +static struct lowpan6_link_addr rfc7668_peer_addr; + +/** + * @ingroup rfc7668if + * convert BT address to EUI64 addr + * + * This method converts a Bluetooth MAC address to an EUI64 address, + * which is used within IPv6 communication + * + * @param dst IPv6 destination space + * @param src BLE MAC address source + * @param public_addr If the LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS + * option is set, bit 0x02 will be set if param=0 (no public addr); cleared otherwise + * + * @see LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS + */ +void +ble_addr_to_eui64(u8_t *dst, const u8_t *src, int public_addr) +{ + /* according to RFC7668 ch 3.2.2. */ + memcpy(dst, src, 3); + dst[3] = 0xFF; + dst[4] = 0xFE; + memcpy(&dst[5], &src[3], 3); +#if LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS + if(public_addr) { + dst[0] &= ~0x02; + } else { + dst[0] |= 0x02; + } +#else + LWIP_UNUSED_ARG(public_addr); +#endif +} + +/** + * @ingroup rfc7668if + * convert EUI64 address to Bluetooth MAC addr + * + * This method converts an EUI64 address to a Bluetooth MAC address, + * + * @param dst BLE MAC address destination + * @param src IPv6 source + * + */ +void +eui64_to_ble_addr(u8_t *dst, const u8_t *src) +{ + /* according to RFC7668 ch 3.2.2. */ + memcpy(dst,src,3); + memcpy(&dst[3],&src[5],3); +} + +/** Set an address used for stateful compression. + * This expects an address of 6 or 8 bytes. + */ +static err_t +rfc7668_set_addr(struct lowpan6_link_addr *addr, const u8_t *in_addr, size_t in_addr_len, int is_mac_48, int is_public_addr) +{ + if ((in_addr == NULL) || (addr == NULL)) { + return ERR_VAL; + } + if (is_mac_48) { + if (in_addr_len != 6) { + return ERR_VAL; + } + addr->addr_len = 8; + ble_addr_to_eui64(addr->addr, in_addr, is_public_addr); + } else { + if (in_addr_len != 8) { + return ERR_VAL; + } + addr->addr_len = 8; + memcpy(addr->addr, in_addr, 8); + } + return ERR_OK; +} + + +/** Set the local address used for stateful compression. + * This expects an address of 8 bytes. + */ +err_t +rfc7668_set_local_addr_eui64(struct netif *netif, const u8_t *local_addr, size_t local_addr_len) +{ + /* netif not used for now, the address is stored globally... */ + LWIP_UNUSED_ARG(netif); + return rfc7668_set_addr(&rfc7668_local_addr, local_addr, local_addr_len, 0, 0); +} + +/** Set the local address used for stateful compression. + * This expects an address of 6 bytes. + */ +err_t +rfc7668_set_local_addr_mac48(struct netif *netif, const u8_t *local_addr, size_t local_addr_len, int is_public_addr) +{ + /* netif not used for now, the address is stored globally... */ + LWIP_UNUSED_ARG(netif); + return rfc7668_set_addr(&rfc7668_local_addr, local_addr, local_addr_len, 1, is_public_addr); +} + +/** Set the peer address used for stateful compression. + * This expects an address of 8 bytes. + */ +err_t +rfc7668_set_peer_addr_eui64(struct netif *netif, const u8_t *peer_addr, size_t peer_addr_len) +{ + /* netif not used for now, the address is stored globally... */ + LWIP_UNUSED_ARG(netif); + return rfc7668_set_addr(&rfc7668_peer_addr, peer_addr, peer_addr_len, 0, 0); +} + +/** Set the peer address used for stateful compression. + * This expects an address of 6 bytes. + */ +err_t +rfc7668_set_peer_addr_mac48(struct netif *netif, const u8_t *peer_addr, size_t peer_addr_len, int is_public_addr) +{ + /* netif not used for now, the address is stored globally... */ + LWIP_UNUSED_ARG(netif); + return rfc7668_set_addr(&rfc7668_peer_addr, peer_addr, peer_addr_len, 1, is_public_addr); +} + +/** Encapsulate IPv6 frames for BLE transmission + * + * This method implements the IPv6 header compression: + * *) According to RFC6282 + * *) See Figure 2, contains base format of bit positions + * *) Fragmentation not necessary (done at L2CAP layer of BLE) + * @note Currently the pbuf allocation uses 256 bytes. If longer packets are used (possible due to MTU=1480Bytes), increase it here! + * + * @param p Pbuf struct, containing the payload data + * @param netif Output network interface. Should be of RFC7668 type + * + * @return Same as netif->output. + */ +static err_t +rfc7668_compress(struct netif *netif, struct pbuf *p) +{ + struct pbuf *p_frag; + u16_t remaining_len; + u8_t *buffer; + u8_t lowpan6_header_len; + u8_t hidden_header_len; + err_t err; + + LWIP_ASSERT("lowpan6_frag: netif->linkoutput not set", netif->linkoutput != NULL); + +#if LWIP_6LOWPAN_IPHC + + /* We'll use a dedicated pbuf for building BLE fragments. + * We'll over-allocate it by the bytes saved for header compression. + */ + p_frag = pbuf_alloc(PBUF_RAW, p->tot_len, PBUF_RAM); + if (p_frag == NULL) { + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + return ERR_MEM; + } + LWIP_ASSERT("this needs a pbuf in one piece", p_frag->len == p_frag->tot_len); + + /* Write IP6 header (with IPHC). */ + buffer = (u8_t*)p_frag->payload; + + err = lowpan6_compress_headers(netif, (u8_t *)p->payload, p->len, buffer, p_frag->len, + &lowpan6_header_len, &hidden_header_len, rfc7668_context, &rfc7668_local_addr, &rfc7668_peer_addr); + if (err != ERR_OK) { + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + pbuf_free(p_frag); + return err; + } + pbuf_remove_header(p, hidden_header_len); + + /* Calculate remaining packet length */ + remaining_len = p->tot_len; + + /* Copy IPv6 packet */ + pbuf_copy_partial(p, buffer + lowpan6_header_len, remaining_len, 0); + + /* Calculate frame length */ + p_frag->len = p_frag->tot_len = remaining_len + lowpan6_header_len; + + /* send the packet */ + MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p_frag->tot_len); + LWIP_DEBUGF(LWIP_LOWPAN6_DEBUG|LWIP_DBG_TRACE, ("rfc7668_output: sending packet %p\n", (void *)p)); + err = netif->linkoutput(netif, p_frag); + + pbuf_free(p_frag); + + return err; +#else /* LWIP_6LOWPAN_IPHC */ + /* 6LoWPAN over BLE requires IPHC! */ + return ERR_IF; +#endif/* LWIP_6LOWPAN_IPHC */ +} + +/** + * @ingroup rfc7668if + * Set context id IPv6 address + * + * Store one IPv6 address to a given context id. + * + * @param idx Context id + * @param context IPv6 addr for this context + * + * @return ERR_OK (if everything is fine), ERR_ARG (if the context id is out of range), ERR_VAL (if contexts disabled) + */ +err_t +rfc7668_set_context(u8_t idx, const ip6_addr_t *context) +{ +#if LWIP_6LOWPAN_NUM_CONTEXTS > 0 + /* check if the ID is possible */ + if (idx >= LWIP_6LOWPAN_NUM_CONTEXTS) { + return ERR_ARG; + } + /* copy IPv6 address to context storage */ + ip6_addr_set(&rfc7668_context[idx], context); + return ERR_OK; +#else + LWIP_UNUSED_ARG(idx); + LWIP_UNUSED_ARG(context); + return ERR_VAL; +#endif +} + +/** + * @ingroup rfc7668if + * Compress outgoing IPv6 packet and pass it on to netif->linkoutput + * + * @param netif The lwIP network interface which the IP packet will be sent on. + * @param q The pbuf(s) containing the IP packet to be sent. + * @param ip6addr The IP address of the packet destination. + * + * @return See rfc7668_compress + */ +err_t +rfc7668_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr) +{ + /* dst ip6addr is not used here, we only have one peer */ + LWIP_UNUSED_ARG(ip6addr); + + return rfc7668_compress(netif, q); +} + +/** + * @ingroup rfc7668if + * Process a received raw payload from an L2CAP channel + * + * @param p the received packet, p->payload pointing to the + * IPv6 header (maybe compressed) + * @param netif the network interface on which the packet was received + * + * @return ERR_OK if everything was fine + */ +err_t +rfc7668_input(struct pbuf * p, struct netif *netif) +{ + u8_t * puc; + + MIB2_STATS_NETIF_ADD(netif, ifinoctets, p->tot_len); + + /* Load first header byte */ + puc = (u8_t*)p->payload; + + /* no IP header compression */ + if (*puc == 0x41) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("Completed packet, removing dispatch: 0x%2x \n", *puc)); + /* This is a complete IPv6 packet, just skip header byte. */ + pbuf_remove_header(p, 1); + /* IPHC header compression */ + } else if ((*puc & 0xe0 )== 0x60) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("Completed packet, decompress dispatch: 0x%2x \n", *puc)); + /* IPv6 headers are compressed using IPHC. */ + p = lowpan6_decompress(p, 0, rfc7668_context, &rfc7668_peer_addr, &rfc7668_local_addr); + /* if no pbuf is returned, handle as discarded packet */ + if (p == NULL) { + MIB2_STATS_NETIF_INC(netif, ifindiscards); + return ERR_OK; + } + /* invalid header byte, discard */ + } else { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("Completed packet, discarding: 0x%2x \n", *puc)); + MIB2_STATS_NETIF_INC(netif, ifindiscards); + pbuf_free(p); + return ERR_OK; + } + /* @todo: distinguish unicast/multicast */ + MIB2_STATS_NETIF_INC(netif, ifinucastpkts); + +#if LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG + { + u16_t i; + LWIP_DEBUGF(LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG, ("IPv6 payload:\n")); + for (i = 0; i < p->len; i++) { + if ((i%4)==0) { + LWIP_DEBUGF(LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG, ("\n")); + } + LWIP_DEBUGF(LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG, ("%2X ", *((u8_t *)p->payload+i))); + } + LWIP_DEBUGF(LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG, ("\np->len: %d\n", p->len)); + } +#endif + /* pass data to ip6_input */ + return ip6_input(p, netif); +} + +/** + * @ingroup rfc7668if + * Initialize the netif + * + * No flags are used (broadcast not possible, not ethernet, ...) + * The shortname for this netif is "BT" + * + * @param netif the network interface to be initialized as RFC7668 netif + * + * @return ERR_OK if everything went fine + */ +err_t +rfc7668_if_init(struct netif *netif) +{ + netif->name[0] = 'b'; + netif->name[1] = 't'; + /* local function as IPv6 output */ + netif->output_ip6 = rfc7668_output; + + MIB2_INIT_NETIF(netif, snmp_ifType_other, 0); + + /* maximum transfer unit, set according to RFC7668 ch2.4 */ + netif->mtu = IP6_MIN_MTU_LENGTH; + + /* no flags set (no broadcast, ethernet,...)*/ + netif->flags = 0; + + /* everything fine */ + return ERR_OK; +} + +#if !NO_SYS +/** + * Pass a received packet to tcpip_thread for input processing + * + * @param p the received packet, p->payload pointing to the + * IEEE 802.15.4 header. + * @param inp the network interface on which the packet was received + * + * @return see @ref tcpip_inpkt, same return values + */ +err_t +tcpip_rfc7668_input(struct pbuf *p, struct netif *inp) +{ + /* send data to upper layer, return the result */ + return tcpip_inpkt(p, inp, rfc7668_input); +} +#endif /* !NO_SYS */ + +#endif /* LWIP_IPV6 */ diff --git a/middleware/lwip/src/netif/lowpan6_common.c b/middleware/lwip/src/netif/lowpan6_common.c new file mode 100644 index 0000000..317b1a0 --- /dev/null +++ b/middleware/lwip/src/netif/lowpan6_common.c @@ -0,0 +1,865 @@ +/** + * @file + * + * Common 6LowPAN routines for IPv6. Uses ND tables for link-layer addressing. Fragments packets to 6LowPAN units. + * + * This implementation aims to conform to IEEE 802.15.4(-2015), RFC 4944 and RFC 6282. + * @todo: RFC 6775. + */ + +/* + * Copyright (c) 2015 Inico Technologies Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer + * + * + * Please coordinate changes and requests with Ivan Delamer + * + */ + +/** + * @defgroup sixlowpan 6LoWPAN (RFC4944) + * @ingroup netifs + * 6LowPAN netif implementation + */ + +#include "netif/lowpan6_common.h" + +#if LWIP_IPV6 + +#include "lwip/ip.h" +#include "lwip/pbuf.h" +#include "lwip/ip_addr.h" +#include "lwip/netif.h" +#include "lwip/udp.h" + +#include + +/* Determine compression mode for unicast address. */ +s8_t +lowpan6_get_address_mode(const ip6_addr_t *ip6addr, const struct lowpan6_link_addr *mac_addr) +{ + if (mac_addr->addr_len == 2) { + if ((ip6addr->addr[2] == (u32_t)PP_HTONL(0x000000ff)) && + ((ip6addr->addr[3] & PP_HTONL(0xffff0000)) == PP_NTOHL(0xfe000000))) { + if ((ip6addr->addr[3] & PP_HTONL(0x0000ffff)) == lwip_ntohl((mac_addr->addr[0] << 8) | mac_addr->addr[1])) { + return 3; + } + } + } else if (mac_addr->addr_len == 8) { + if ((ip6addr->addr[2] == lwip_ntohl(((mac_addr->addr[0] ^ 2) << 24) | (mac_addr->addr[1] << 16) | mac_addr->addr[2] << 8 | mac_addr->addr[3])) && + (ip6addr->addr[3] == lwip_ntohl((mac_addr->addr[4] << 24) | (mac_addr->addr[5] << 16) | mac_addr->addr[6] << 8 | mac_addr->addr[7]))) { + return 3; + } + } + + if ((ip6addr->addr[2] == PP_HTONL(0x000000ffUL)) && + ((ip6addr->addr[3] & PP_HTONL(0xffff0000)) == PP_NTOHL(0xfe000000UL))) { + return 2; + } + + return 1; +} + +#if LWIP_6LOWPAN_IPHC + +/* Determine compression mode for multicast address. */ +static s8_t +lowpan6_get_address_mode_mc(const ip6_addr_t *ip6addr) +{ + if ((ip6addr->addr[0] == PP_HTONL(0xff020000)) && + (ip6addr->addr[1] == 0) && + (ip6addr->addr[2] == 0) && + ((ip6addr->addr[3] & PP_HTONL(0xffffff00)) == 0)) { + return 3; + } else if (((ip6addr->addr[0] & PP_HTONL(0xff00ffff)) == PP_HTONL(0xff000000)) && + (ip6addr->addr[1] == 0)) { + if ((ip6addr->addr[2] == 0) && + ((ip6addr->addr[3] & PP_HTONL(0xff000000)) == 0)) { + return 2; + } else if ((ip6addr->addr[2] & PP_HTONL(0xffffff00)) == 0) { + return 1; + } + } + + return 0; +} + +#if LWIP_6LOWPAN_NUM_CONTEXTS > 0 +static s8_t +lowpan6_context_lookup(const ip6_addr_t *lowpan6_contexts, const ip6_addr_t *ip6addr) +{ + s8_t i; + + for (i = 0; i < LWIP_6LOWPAN_NUM_CONTEXTS; i++) { + if (ip6_addr_net_eq(&lowpan6_contexts[i], ip6addr)) { + return i; + } + } + return -1; +} +#endif /* LWIP_6LOWPAN_NUM_CONTEXTS > 0 */ + +/* + * Compress IPv6 and/or UDP headers. + * */ +err_t +lowpan6_compress_headers(struct netif *netif, u8_t *inbuf, size_t inbuf_size, u8_t *outbuf, size_t outbuf_size, + u8_t *lowpan6_header_len_out, u8_t *hidden_header_len_out, ip6_addr_t *lowpan6_contexts, + const struct lowpan6_link_addr *src, const struct lowpan6_link_addr *dst) +{ + u8_t *buffer, *inptr; + u8_t lowpan6_header_len; + u8_t hidden_header_len = 0; + s8_t i; + struct ip6_hdr *ip6hdr; + ip_addr_t ip6src, ip6dst; + + LWIP_ASSERT("netif != NULL", netif != NULL); + LWIP_ASSERT("inbuf != NULL", inbuf != NULL); + LWIP_ASSERT("outbuf != NULL", outbuf != NULL); + LWIP_ASSERT("lowpan6_header_len_out != NULL", lowpan6_header_len_out != NULL); + LWIP_ASSERT("hidden_header_len_out != NULL", hidden_header_len_out != NULL); + + /* Perform 6LowPAN IPv6 header compression according to RFC 6282 */ + buffer = outbuf; + inptr = inbuf; + + if (inbuf_size < IP6_HLEN) { + /* input buffer too short */ + return ERR_VAL; + } + if (outbuf_size < IP6_HLEN) { + /* output buffer too short for worst case */ + return ERR_MEM; + } + + /* Point to ip6 header and align copies of src/dest addresses. */ + ip6hdr = (struct ip6_hdr *)inptr; + ip_addr_copy_from_ip6_packed(ip6dst, ip6hdr->dest); + ip6_addr_assign_zone(ip_2_ip6(&ip6dst), IP6_UNKNOWN, netif); + ip_addr_copy_from_ip6_packed(ip6src, ip6hdr->src); + ip6_addr_assign_zone(ip_2_ip6(&ip6src), IP6_UNKNOWN, netif); + + /* Basic length of 6LowPAN header, set dispatch and clear fields. */ + lowpan6_header_len = 2; + buffer[0] = 0x60; + buffer[1] = 0; + + /* Determine whether there will be a Context Identifier Extension byte or not. + * If so, set it already. */ +#if LWIP_6LOWPAN_NUM_CONTEXTS > 0 + buffer[2] = 0; + + i = lowpan6_context_lookup(lowpan6_contexts, ip_2_ip6(&ip6src)); + if (i >= 0) { + /* Stateful source address compression. */ + buffer[1] |= 0x40; + buffer[2] |= (i & 0x0f) << 4; + } + + i = lowpan6_context_lookup(lowpan6_contexts, ip_2_ip6(&ip6dst)); + if (i >= 0) { + /* Stateful destination address compression. */ + buffer[1] |= 0x04; + buffer[2] |= i & 0x0f; + } + + if (buffer[2] != 0x00) { + /* Context identifier extension byte is appended. */ + buffer[1] |= 0x80; + lowpan6_header_len++; + } +#else /* LWIP_6LOWPAN_NUM_CONTEXTS > 0 */ + LWIP_UNUSED_ARG(lowpan6_contexts); +#endif /* LWIP_6LOWPAN_NUM_CONTEXTS > 0 */ + + /* Determine TF field: Traffic Class, Flow Label */ + if (IP6H_FL(ip6hdr) == 0) { + /* Flow label is elided. */ + buffer[0] |= 0x10; + if (IP6H_TC(ip6hdr) == 0) { + /* Traffic class (ECN+DSCP) elided too. */ + buffer[0] |= 0x08; + } else { + /* Traffic class (ECN+DSCP) appended. */ + buffer[lowpan6_header_len++] = IP6H_TC(ip6hdr); + } + } else { + if (((IP6H_TC(ip6hdr) & 0x3f) == 0)) { + /* DSCP portion of Traffic Class is elided, ECN and FL are appended (3 bytes) */ + buffer[0] |= 0x08; + + buffer[lowpan6_header_len] = IP6H_TC(ip6hdr) & 0xc0; + buffer[lowpan6_header_len++] |= (IP6H_FL(ip6hdr) >> 16) & 0x0f; + buffer[lowpan6_header_len++] = (IP6H_FL(ip6hdr) >> 8) & 0xff; + buffer[lowpan6_header_len++] = IP6H_FL(ip6hdr) & 0xff; + } else { + /* Traffic class and flow label are appended (4 bytes) */ + buffer[lowpan6_header_len++] = IP6H_TC(ip6hdr); + buffer[lowpan6_header_len++] = (IP6H_FL(ip6hdr) >> 16) & 0x0f; + buffer[lowpan6_header_len++] = (IP6H_FL(ip6hdr) >> 8) & 0xff; + buffer[lowpan6_header_len++] = IP6H_FL(ip6hdr) & 0xff; + } + } + + /* Compress NH? + * Only if UDP for now. @todo support other NH compression. */ + if (IP6H_NEXTH(ip6hdr) == IP6_NEXTH_UDP) { + buffer[0] |= 0x04; + } else { + /* append nexth. */ + buffer[lowpan6_header_len++] = IP6H_NEXTH(ip6hdr); + } + + /* Compress hop limit? */ + if (IP6H_HOPLIM(ip6hdr) == 255) { + buffer[0] |= 0x03; + } else if (IP6H_HOPLIM(ip6hdr) == 64) { + buffer[0] |= 0x02; + } else if (IP6H_HOPLIM(ip6hdr) == 1) { + buffer[0] |= 0x01; + } else { + /* append hop limit */ + buffer[lowpan6_header_len++] = IP6H_HOPLIM(ip6hdr); + } + + /* Compress source address */ + if (((buffer[1] & 0x40) != 0) || + (ip6_addr_islinklocal(ip_2_ip6(&ip6src)))) { + /* Context-based or link-local source address compression. */ + i = lowpan6_get_address_mode(ip_2_ip6(&ip6src), src); + buffer[1] |= (i & 0x03) << 4; + if (i == 1) { + MEMCPY(buffer + lowpan6_header_len, inptr + 16, 8); + lowpan6_header_len += 8; + } else if (i == 2) { + MEMCPY(buffer + lowpan6_header_len, inptr + 22, 2); + lowpan6_header_len += 2; + } + } else if (ip6_addr_isany(ip_2_ip6(&ip6src))) { + /* Special case: mark SAC and leave SAM=0 */ + buffer[1] |= 0x40; + } else { + /* Append full address. */ + MEMCPY(buffer + lowpan6_header_len, inptr + 8, 16); + lowpan6_header_len += 16; + } + + /* Compress destination address */ + if (ip6_addr_ismulticast(ip_2_ip6(&ip6dst))) { + /* @todo support stateful multicast address compression */ + + buffer[1] |= 0x08; + + i = lowpan6_get_address_mode_mc(ip_2_ip6(&ip6dst)); + buffer[1] |= i & 0x03; + if (i == 0) { + MEMCPY(buffer + lowpan6_header_len, inptr + 24, 16); + lowpan6_header_len += 16; + } else if (i == 1) { + buffer[lowpan6_header_len++] = inptr[25]; + MEMCPY(buffer + lowpan6_header_len, inptr + 35, 5); + lowpan6_header_len += 5; + } else if (i == 2) { + buffer[lowpan6_header_len++] = inptr[25]; + MEMCPY(buffer + lowpan6_header_len, inptr + 37, 3); + lowpan6_header_len += 3; + } else if (i == 3) { + buffer[lowpan6_header_len++] = (inptr)[39]; + } + } else if (((buffer[1] & 0x04) != 0) || + (ip6_addr_islinklocal(ip_2_ip6(&ip6dst)))) { + /* Context-based or link-local destination address compression. */ + i = lowpan6_get_address_mode(ip_2_ip6(&ip6dst), dst); + buffer[1] |= i & 0x03; + if (i == 1) { + MEMCPY(buffer + lowpan6_header_len, inptr + 32, 8); + lowpan6_header_len += 8; + } else if (i == 2) { + MEMCPY(buffer + lowpan6_header_len, inptr + 38, 2); + lowpan6_header_len += 2; + } + } else { + /* Append full address. */ + MEMCPY(buffer + lowpan6_header_len, inptr + 24, 16); + lowpan6_header_len += 16; + } + + /* Move to payload. */ + inptr += IP6_HLEN; + hidden_header_len += IP6_HLEN; + +#if LWIP_UDP + /* Compress UDP header? */ + if (IP6H_NEXTH(ip6hdr) == IP6_NEXTH_UDP) { + /* @todo support optional checksum compression */ + + if (inbuf_size < IP6_HLEN + UDP_HLEN) { + /* input buffer too short */ + return ERR_VAL; + } + if (outbuf_size < (size_t)(hidden_header_len + 7)) { + /* output buffer too short for worst case */ + return ERR_MEM; + } + + buffer[lowpan6_header_len] = 0xf0; + + /* determine port compression mode. */ + if ((inptr[0] == 0xf0) && ((inptr[1] & 0xf0) == 0xb0) && + (inptr[2] == 0xf0) && ((inptr[3] & 0xf0) == 0xb0)) { + /* Compress source and dest ports. */ + buffer[lowpan6_header_len++] |= 0x03; + buffer[lowpan6_header_len++] = ((inptr[1] & 0x0f) << 4) | (inptr[3] & 0x0f); + } else if (inptr[0] == 0xf0) { + /* Compress source port. */ + buffer[lowpan6_header_len++] |= 0x02; + buffer[lowpan6_header_len++] = inptr[1]; + buffer[lowpan6_header_len++] = inptr[2]; + buffer[lowpan6_header_len++] = inptr[3]; + } else if (inptr[2] == 0xf0) { + /* Compress dest port. */ + buffer[lowpan6_header_len++] |= 0x01; + buffer[lowpan6_header_len++] = inptr[0]; + buffer[lowpan6_header_len++] = inptr[1]; + buffer[lowpan6_header_len++] = inptr[3]; + } else { + /* append full ports. */ + lowpan6_header_len++; + buffer[lowpan6_header_len++] = inptr[0]; + buffer[lowpan6_header_len++] = inptr[1]; + buffer[lowpan6_header_len++] = inptr[2]; + buffer[lowpan6_header_len++] = inptr[3]; + } + + /* elide length and copy checksum */ + buffer[lowpan6_header_len++] = inptr[6]; + buffer[lowpan6_header_len++] = inptr[7]; + + hidden_header_len += UDP_HLEN; + } +#endif /* LWIP_UDP */ + + *lowpan6_header_len_out = lowpan6_header_len; + *hidden_header_len_out = hidden_header_len; + + return ERR_OK; +} + +/** Decompress IPv6 and UDP headers compressed according to RFC 6282 + * + * @param lowpan6_buffer compressed headers, first byte is the dispatch byte + * @param lowpan6_bufsize size of lowpan6_buffer (may include data after headers) + * @param decomp_buffer buffer where the decompressed headers are stored + * @param decomp_bufsize size of decomp_buffer + * @param hdr_size_comp returns the size of the compressed headers (skip to get to data) + * @param hdr_size_decomp returns the size of the decompressed headers (IPv6 + UDP) + * @param datagram_size datagram size from fragments or 0 if unfragmented + * @param compressed_size compressed datagram size (for unfragmented rx) + * @param lowpan6_contexts context addresses + * @param src source address of the outer layer, used for address compression + * @param dest destination address of the outer layer, used for address compression + * @return ERR_OK if decompression succeeded, an error otherwise + */ +static err_t +lowpan6_decompress_hdr(u8_t *lowpan6_buffer, size_t lowpan6_bufsize, + u8_t *decomp_buffer, size_t decomp_bufsize, + u16_t *hdr_size_comp, u16_t *hdr_size_decomp, + u16_t datagram_size, u16_t compressed_size, + ip6_addr_t *lowpan6_contexts, + struct lowpan6_link_addr *src, struct lowpan6_link_addr *dest) +{ + u16_t lowpan6_offset; + struct ip6_hdr *ip6hdr; + s8_t i; + u32_t header_temp; + u16_t ip6_offset = IP6_HLEN; + + LWIP_ASSERT("lowpan6_buffer != NULL", lowpan6_buffer != NULL); + LWIP_ASSERT("decomp_buffer != NULL", decomp_buffer != NULL); + LWIP_ASSERT("src != NULL", src != NULL); + LWIP_ASSERT("dest != NULL", dest != NULL); + LWIP_ASSERT("hdr_size_comp != NULL", hdr_size_comp != NULL); + LWIP_ASSERT("dehdr_size_decompst != NULL", hdr_size_decomp != NULL); + + ip6hdr = (struct ip6_hdr *)decomp_buffer; + if (decomp_bufsize < IP6_HLEN) { + return ERR_MEM; + } + + /* output the full compressed packet, if set in @see lowpan6_opts.h */ +#if LWIP_LOWPAN6_IP_COMPRESSED_DEBUG + { + u16_t j; + LWIP_DEBUGF(LWIP_LOWPAN6_IP_COMPRESSED_DEBUG, ("lowpan6_decompress_hdr: IP6 payload (compressed): \n")); + for (j = 0; j < lowpan6_bufsize; j++) { + if ((j % 4) == 0) { + LWIP_DEBUGF(LWIP_LOWPAN6_IP_COMPRESSED_DEBUG, ("\n")); + } + LWIP_DEBUGF(LWIP_LOWPAN6_IP_COMPRESSED_DEBUG, ("%2X ", lowpan6_buffer[j])); + } + LWIP_DEBUGF(LWIP_LOWPAN6_IP_COMPRESSED_DEBUG, ("\np->len: %d", lowpan6_bufsize)); + } +#endif + + /* offset for inline IP headers (RFC 6282 ch3)*/ + lowpan6_offset = 2; + /* if CID is set (context identifier), the context byte + * follows immediately after the header, so other IPHC fields are @+3 */ + if (lowpan6_buffer[1] & 0x80) { + lowpan6_offset++; + } + + /* Set IPv6 version, traffic class and flow label. (RFC6282, ch 3.1.1.)*/ + if ((lowpan6_buffer[0] & 0x18) == 0x00) { + header_temp = ((lowpan6_buffer[lowpan6_offset+1] & 0x0f) << 16) | \ + (lowpan6_buffer[lowpan6_offset + 2] << 8) | lowpan6_buffer[lowpan6_offset+3]; + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("TF: 00, ECN: 0x%2x, Flowlabel+DSCP: 0x%8X\n", \ + lowpan6_buffer[lowpan6_offset],header_temp)); + IP6H_VTCFL_SET(ip6hdr, 6, lowpan6_buffer[lowpan6_offset], header_temp); + /* increase offset, processed 4 bytes here: + * TF=00: ECN + DSCP + 4-bit Pad + Flow Label (4 bytes)*/ + lowpan6_offset += 4; + } else if ((lowpan6_buffer[0] & 0x18) == 0x08) { + header_temp = ((lowpan6_buffer[lowpan6_offset] & 0x0f) << 16) | (lowpan6_buffer[lowpan6_offset + 1] << 8) | lowpan6_buffer[lowpan6_offset+2]; + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("TF: 01, ECN: 0x%2x, Flowlabel: 0x%2X, DSCP ignored\n", \ + lowpan6_buffer[lowpan6_offset] & 0xc0,header_temp)); + IP6H_VTCFL_SET(ip6hdr, 6, lowpan6_buffer[lowpan6_offset] & 0xc0, header_temp); + /* increase offset, processed 3 bytes here: + * TF=01: ECN + 2-bit Pad + Flow Label (3 bytes), DSCP is elided.*/ + lowpan6_offset += 3; + } else if ((lowpan6_buffer[0] & 0x18) == 0x10) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("TF: 10, DCSP+ECN: 0x%2x, Flowlabel ignored\n", lowpan6_buffer[lowpan6_offset])); + IP6H_VTCFL_SET(ip6hdr, 6, lowpan6_buffer[lowpan6_offset],0); + /* increase offset, processed 1 byte here: + * ECN + DSCP (1 byte), Flow Label is elided.*/ + lowpan6_offset += 1; + } else if ((lowpan6_buffer[0] & 0x18) == 0x18) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("TF: 11, DCSP/ECN & Flowlabel ignored\n")); + /* don't increase offset, no bytes processed here */ + IP6H_VTCFL_SET(ip6hdr, 6, 0, 0); + } + + /* Set Next Header (NH) */ + if ((lowpan6_buffer[0] & 0x04) == 0x00) { + /* 0: full next header byte carried inline (increase offset)*/ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("NH: 0x%2X\n", lowpan6_buffer[lowpan6_offset+1])); + IP6H_NEXTH_SET(ip6hdr, lowpan6_buffer[lowpan6_offset++]); + } else { + /* 1: NH compression, LOWPAN_NHC (RFC6282, ch 4.1) */ + /* We should fill this later with NHC decoding */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("NH: skipped, later done with NHC\n")); + IP6H_NEXTH_SET(ip6hdr, 0); + } + + /* Set Hop Limit, either carried inline or 3 different hops (1,64,255) */ + if ((lowpan6_buffer[0] & 0x03) == 0x00) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("Hops: full value: %d\n", lowpan6_buffer[lowpan6_offset+1])); + IP6H_HOPLIM_SET(ip6hdr, lowpan6_buffer[lowpan6_offset++]); + } else if ((lowpan6_buffer[0] & 0x03) == 0x01) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("Hops: compressed: 1\n")); + IP6H_HOPLIM_SET(ip6hdr, 1); + } else if ((lowpan6_buffer[0] & 0x03) == 0x02) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("Hops: compressed: 64\n")); + IP6H_HOPLIM_SET(ip6hdr, 64); + } else if ((lowpan6_buffer[0] & 0x03) == 0x03) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("Hops: compressed: 255\n")); + IP6H_HOPLIM_SET(ip6hdr, 255); + } + + /* Source address decoding. */ + if ((lowpan6_buffer[1] & 0x40) == 0x00) { + /* Source address compression (SAC) = 0 -> stateless compression */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAC == 0, no context byte\n")); + /* Stateless compression */ + if ((lowpan6_buffer[1] & 0x30) == 0x00) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAM == 00, no src compression, fetching 128bits inline\n")); + /* copy full address, increase offset by 16 Bytes */ + ip6hdr->src.addr[0] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->src.addr[1] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->src.addr[2] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->src.addr[3] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + } else if ((lowpan6_buffer[1] & 0x30) == 0x10) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAM == 01, src compression, 64bits inline\n")); + /* set 64 bits to link local */ + ip6hdr->src.addr[0] = PP_HTONL(0xfe800000UL); + ip6hdr->src.addr[1] = 0; + /* copy 8 Bytes, increase offset */ + ip6hdr->src.addr[2] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->src.addr[3] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + } else if ((lowpan6_buffer[1] & 0x30) == 0x20) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAM == 10, src compression, 16bits inline\n")); + /* set 96 bits to link local */ + ip6hdr->src.addr[0] = PP_HTONL(0xfe800000UL); + ip6hdr->src.addr[1] = 0; + ip6hdr->src.addr[2] = PP_HTONL(0x000000ffUL); + /* extract remaining 16bits from inline bytes, increase offset */ + ip6hdr->src.addr[3] = lwip_htonl(0xfe000000UL | (lowpan6_buffer[lowpan6_offset] << 8) | + lowpan6_buffer[lowpan6_offset + 1]); + lowpan6_offset += 2; + } else if ((lowpan6_buffer[1] & 0x30) == 0x30) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAM == 11, src compression, 0bits inline, using other headers\n")); + /* no information available, using other layers, see RFC6282 ch 3.2.2 */ + ip6hdr->src.addr[0] = PP_HTONL(0xfe800000UL); + ip6hdr->src.addr[1] = 0; + if (src->addr_len == 2) { + ip6hdr->src.addr[2] = PP_HTONL(0x000000ffUL); + ip6hdr->src.addr[3] = lwip_htonl(0xfe000000UL | (src->addr[0] << 8) | src->addr[1]); + } else if (src->addr_len == 8) { + ip6hdr->src.addr[2] = lwip_htonl(((src->addr[0] ^ 2) << 24) | (src->addr[1] << 16) | + (src->addr[2] << 8) | src->addr[3]); + ip6hdr->src.addr[3] = lwip_htonl((src->addr[4] << 24) | (src->addr[5] << 16) | + (src->addr[6] << 8) | src->addr[7]); + } else { + /* invalid source address length */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("Invalid source address length\n")); + return ERR_VAL; + } + } + } else { + /* Source address compression (SAC) = 1 -> stateful/context-based compression */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAC == 1, additional context byte\n")); + if ((lowpan6_buffer[1] & 0x30) == 0x00) { + /* SAM=00, address=> :: (ANY) */ + ip6hdr->src.addr[0] = 0; + ip6hdr->src.addr[1] = 0; + ip6hdr->src.addr[2] = 0; + ip6hdr->src.addr[3] = 0; + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAM == 00, context compression, ANY (::)\n")); + } else { + /* Set prefix from context info */ + if (lowpan6_buffer[1] & 0x80) { + i = (lowpan6_buffer[2] >> 4) & 0x0f; + } else { + i = 0; + } + if (i >= LWIP_6LOWPAN_NUM_CONTEXTS) { + /* Error */ + return ERR_VAL; + } +#if LWIP_6LOWPAN_NUM_CONTEXTS > 0 + ip6hdr->src.addr[0] = lowpan6_contexts[i].addr[0]; + ip6hdr->src.addr[1] = lowpan6_contexts[i].addr[1]; + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAM == xx, context compression found @%d: %8X, %8X\n", (int)i, ip6hdr->src.addr[0], ip6hdr->src.addr[1])); +#else + LWIP_UNUSED_ARG(lowpan6_contexts); +#endif + } + + /* determine further address bits */ + if ((lowpan6_buffer[1] & 0x30) == 0x10) { + /* SAM=01, load additional 64bits */ + ip6hdr->src.addr[2] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->src.addr[3] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAM == 01, context compression, 64bits inline\n")); + } else if ((lowpan6_buffer[1] & 0x30) == 0x20) { + /* SAM=01, load additional 16bits */ + ip6hdr->src.addr[2] = PP_HTONL(0x000000ffUL); + ip6hdr->src.addr[3] = lwip_htonl(0xfe000000UL | (lowpan6_buffer[lowpan6_offset] << 8) | lowpan6_buffer[lowpan6_offset + 1]); + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAM == 10, context compression, 16bits inline\n")); + lowpan6_offset += 2; + } else if ((lowpan6_buffer[1] & 0x30) == 0x30) { + /* SAM=11, address is fully elided, load from other layers */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("SAM == 11, context compression, 0bits inline, using other headers\n")); + if (src->addr_len == 2) { + ip6hdr->src.addr[2] = PP_HTONL(0x000000ffUL); + ip6hdr->src.addr[3] = lwip_htonl(0xfe000000UL | (src->addr[0] << 8) | src->addr[1]); + } else if (src->addr_len == 8) { + ip6hdr->src.addr[2] = lwip_htonl(((src->addr[0] ^ 2) << 24) | (src->addr[1] << 16) | (src->addr[2] << 8) | src->addr[3]); + ip6hdr->src.addr[3] = lwip_htonl((src->addr[4] << 24) | (src->addr[5] << 16) | (src->addr[6] << 8) | src->addr[7]); + } else { + /* invalid source address length */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("Invalid source address length\n")); + return ERR_VAL; + } + } + } + + /* Destination address decoding. */ + if (lowpan6_buffer[1] & 0x08) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("M=1: multicast\n")); + /* Multicast destination */ + if (lowpan6_buffer[1] & 0x04) { + LWIP_DEBUGF(LWIP_DBG_ON,("DAC == 1, context multicast: unsupported!!!\n")); + /* @todo support stateful multicast addressing */ + return ERR_VAL; + } + + if ((lowpan6_buffer[1] & 0x03) == 0x00) { + /* DAM = 00, copy full address (128bits) */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("DAM == 00, no dst compression, fetching 128bits inline\n")); + ip6hdr->dest.addr[0] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->dest.addr[1] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->dest.addr[2] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->dest.addr[3] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + } else if ((lowpan6_buffer[1] & 0x03) == 0x01) { + /* DAM = 01, copy 4 bytes (32bits) */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("DAM == 01, dst address form (48bits): ffXX::00XX:XXXX:XXXX\n")); + ip6hdr->dest.addr[0] = lwip_htonl(0xff000000UL | (lowpan6_buffer[lowpan6_offset++] << 16)); + ip6hdr->dest.addr[1] = 0; + ip6hdr->dest.addr[2] = lwip_htonl(lowpan6_buffer[lowpan6_offset++]); + ip6hdr->dest.addr[3] = lwip_htonl((lowpan6_buffer[lowpan6_offset] << 24) | (lowpan6_buffer[lowpan6_offset + 1] << 16) | (lowpan6_buffer[lowpan6_offset + 2] << 8) | lowpan6_buffer[lowpan6_offset + 3]); + lowpan6_offset += 4; + } else if ((lowpan6_buffer[1] & 0x03) == 0x02) { + /* DAM = 10, copy 3 bytes (24bits) */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("DAM == 10, dst address form (32bits): ffXX::00XX:XXXX\n")); + ip6hdr->dest.addr[0] = lwip_htonl(0xff000000UL | (lowpan6_buffer[lowpan6_offset++] << 16)); + ip6hdr->dest.addr[1] = 0; + ip6hdr->dest.addr[2] = 0; + ip6hdr->dest.addr[3] = lwip_htonl((lowpan6_buffer[lowpan6_offset] << 16) | (lowpan6_buffer[lowpan6_offset + 1] << 8) | lowpan6_buffer[lowpan6_offset + 2]); + lowpan6_offset += 3; + } else if ((lowpan6_buffer[1] & 0x03) == 0x03) { + /* DAM = 11, copy 1 byte (8bits) */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("DAM == 11, dst address form (8bits): ff02::00XX\n")); + ip6hdr->dest.addr[0] = PP_HTONL(0xff020000UL); + ip6hdr->dest.addr[1] = 0; + ip6hdr->dest.addr[2] = 0; + ip6hdr->dest.addr[3] = lwip_htonl(lowpan6_buffer[lowpan6_offset++]); + } + + } else { + /* no Multicast (M=0) */ + if (lowpan6_buffer[1] & 0x04) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("DAC == 1, stateful compression\n")); + /* Stateful destination compression */ + /* Set prefix from context info */ + if (lowpan6_buffer[1] & 0x80) { + i = lowpan6_buffer[2] & 0x0f; + } else { + i = 0; + } + if (i >= LWIP_6LOWPAN_NUM_CONTEXTS) { + /* Error */ + return ERR_VAL; + } +#if LWIP_6LOWPAN_NUM_CONTEXTS > 0 + ip6hdr->dest.addr[0] = lowpan6_contexts[i].addr[0]; + ip6hdr->dest.addr[1] = lowpan6_contexts[i].addr[1]; +#endif + } else { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("DAC == 0, stateless compression, setting link local prefix\n")); + /* Link local address compression */ + ip6hdr->dest.addr[0] = PP_HTONL(0xfe800000UL); + ip6hdr->dest.addr[1] = 0; + } + + /* M=0, DAC=0, determining destination address length via DAM=xx */ + if ((lowpan6_buffer[1] & 0x03) == 0x00) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("DAM == 00, no dst compression, fetching 128bits inline")); + /* DAM=00, copy full address */ + ip6hdr->dest.addr[0] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->dest.addr[1] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->dest.addr[2] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->dest.addr[3] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + } else if ((lowpan6_buffer[1] & 0x03) == 0x01) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("DAM == 01, dst compression, 64bits inline\n")); + /* DAM=01, copy 64 inline bits, increase offset */ + ip6hdr->dest.addr[2] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + ip6hdr->dest.addr[3] = *((u32_t *)(lowpan6_buffer + lowpan6_offset)); + lowpan6_offset += 4; + } else if ((lowpan6_buffer[1] & 0x03) == 0x02) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("DAM == 01, dst compression, 16bits inline\n")); + /* DAM=10, copy 16 inline bits, increase offset */ + ip6hdr->dest.addr[2] = PP_HTONL(0x000000ffUL); + ip6hdr->dest.addr[3] = lwip_htonl(0xfe000000UL | (lowpan6_buffer[lowpan6_offset] << 8) | lowpan6_buffer[lowpan6_offset + 1]); + lowpan6_offset += 2; + } else if ((lowpan6_buffer[1] & 0x03) == 0x03) { + /* DAM=11, no bits available, use other headers (not done here) */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG,("DAM == 01, dst compression, 0bits inline, using other headers\n")); + if (dest->addr_len == 2) { + ip6hdr->dest.addr[2] = PP_HTONL(0x000000ffUL); + ip6hdr->dest.addr[3] = lwip_htonl(0xfe000000UL | (dest->addr[0] << 8) | dest->addr[1]); + } else if (dest->addr_len == 8) { + ip6hdr->dest.addr[2] = lwip_htonl(((dest->addr[0] ^ 2) << 24) | (dest->addr[1] << 16) | dest->addr[2] << 8 | dest->addr[3]); + ip6hdr->dest.addr[3] = lwip_htonl((dest->addr[4] << 24) | (dest->addr[5] << 16) | dest->addr[6] << 8 | dest->addr[7]); + } else { + /* invalid destination address length */ + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("Invalid destination address length\n")); + return ERR_VAL; + } + } + } + + + /* Next Header Compression (NHC) decoding? */ + if (lowpan6_buffer[0] & 0x04) { + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("NHC decoding\n")); +#if LWIP_UDP + if ((lowpan6_buffer[lowpan6_offset] & 0xf8) == 0xf0) { + /* NHC: UDP */ + struct udp_hdr *udphdr; + LWIP_DEBUGF(LWIP_LOWPAN6_DECOMPRESSION_DEBUG, ("NHC: UDP\n")); + + /* UDP compression */ + IP6H_NEXTH_SET(ip6hdr, IP6_NEXTH_UDP); + udphdr = (struct udp_hdr *)((u8_t *)decomp_buffer + ip6_offset); + if (decomp_bufsize < IP6_HLEN + UDP_HLEN) { + return ERR_MEM; + } + + /* Checksum decompression */ + if (lowpan6_buffer[lowpan6_offset] & 0x04) { + /* @todo support checksum decompress */ + LWIP_DEBUGF(LWIP_DBG_ON, ("NHC: UDP chechsum decompression UNSUPPORTED\n")); + return ERR_VAL; + } + + /* Decompress ports, according to RFC4944 */ + i = lowpan6_buffer[lowpan6_offset++] & 0x03; + if (i == 0) { + udphdr->src = lwip_htons(lowpan6_buffer[lowpan6_offset] << 8 | lowpan6_buffer[lowpan6_offset + 1]); + udphdr->dest = lwip_htons(lowpan6_buffer[lowpan6_offset + 2] << 8 | lowpan6_buffer[lowpan6_offset + 3]); + lowpan6_offset += 4; + } else if (i == 0x01) { + udphdr->src = lwip_htons(lowpan6_buffer[lowpan6_offset] << 8 | lowpan6_buffer[lowpan6_offset + 1]); + udphdr->dest = lwip_htons(0xf000 | lowpan6_buffer[lowpan6_offset + 2]); + lowpan6_offset += 3; + } else if (i == 0x02) { + udphdr->src = lwip_htons(0xf000 | lowpan6_buffer[lowpan6_offset]); + udphdr->dest = lwip_htons(lowpan6_buffer[lowpan6_offset + 1] << 8 | lowpan6_buffer[lowpan6_offset + 2]); + lowpan6_offset += 3; + } else if (i == 0x03) { + udphdr->src = lwip_htons(0xf0b0 | ((lowpan6_buffer[lowpan6_offset] >> 4) & 0x0f)); + udphdr->dest = lwip_htons(0xf0b0 | (lowpan6_buffer[lowpan6_offset] & 0x0f)); + lowpan6_offset += 1; + } + + udphdr->chksum = lwip_htons(lowpan6_buffer[lowpan6_offset] << 8 | lowpan6_buffer[lowpan6_offset + 1]); + lowpan6_offset += 2; + ip6_offset += UDP_HLEN; + if (datagram_size == 0) { + datagram_size = compressed_size - lowpan6_offset + ip6_offset; + } + udphdr->len = lwip_htons(datagram_size - IP6_HLEN); + + } else +#endif /* LWIP_UDP */ + { + LWIP_DEBUGF(LWIP_DBG_ON,("NHC: unsupported protocol!\n")); + /* @todo support NHC other than UDP */ + return ERR_VAL; + } + } + if (datagram_size == 0) { + datagram_size = compressed_size - lowpan6_offset + ip6_offset; + } + /* Infer IPv6 payload length for header */ + IP6H_PLEN_SET(ip6hdr, datagram_size - IP6_HLEN); + + if (lowpan6_offset > lowpan6_bufsize) { + /* input buffer overflow */ + return ERR_VAL; + } + *hdr_size_comp = lowpan6_offset; + *hdr_size_decomp = ip6_offset; + + return ERR_OK; +} + +struct pbuf * +lowpan6_decompress(struct pbuf *p, u16_t datagram_size, ip6_addr_t *lowpan6_contexts, + struct lowpan6_link_addr *src, struct lowpan6_link_addr *dest) +{ + struct pbuf *q; + u16_t lowpan6_offset, ip6_offset; + err_t err; + +#if LWIP_UDP +#define UDP_HLEN_ALLOC UDP_HLEN +#else +#define UDP_HLEN_ALLOC 0 +#endif + + /* Allocate a buffer for decompression. This buffer will be too big and will be + trimmed once the final size is known. */ + q = pbuf_alloc(PBUF_IP, p->len + IP6_HLEN + UDP_HLEN_ALLOC, PBUF_POOL); + if (q == NULL) { + pbuf_free(p); + return NULL; + } + if (q->len < IP6_HLEN + UDP_HLEN_ALLOC) { + /* The headers need to fit into the first pbuf */ + pbuf_free(p); + pbuf_free(q); + return NULL; + } + + /* Decompress the IPv6 (and possibly UDP) header(s) into the new pbuf */ + err = lowpan6_decompress_hdr((u8_t *)p->payload, p->len, (u8_t *)q->payload, q->len, + &lowpan6_offset, &ip6_offset, datagram_size, p->tot_len, lowpan6_contexts, src, dest); + if (err != ERR_OK) { + pbuf_free(p); + pbuf_free(q); + return NULL; + } + + /* Now we copy leftover contents from p to q, so we have all L2 and L3 headers + (and L4?) in a single pbuf: */ + + /* Hide the compressed headers in p */ + pbuf_remove_header(p, lowpan6_offset); + /* Temporarily hide the headers in q... */ + pbuf_remove_header(q, ip6_offset); + /* ... copy the rest of p into q... */ + pbuf_copy(q, p); + /* ... and reveal the headers again... */ + pbuf_add_header_force(q, ip6_offset); + /* ... trim the pbuf to its correct size... */ + pbuf_realloc(q, ip6_offset + p->len); + /* ... and cat possibly remaining (data-only) pbufs */ + if (p->next != NULL) { + pbuf_cat(q, p->next); + } + /* the original (first) pbuf can now be freed */ + p->next = NULL; + pbuf_free(p); + + /* all done */ + return q; +} + +#endif /* LWIP_6LOWPAN_IPHC */ +#endif /* LWIP_IPV6 */ diff --git a/middleware/lwip/src/netif/ppp/PPPD_FOLLOWUP b/middleware/lwip/src/netif/ppp/PPPD_FOLLOWUP new file mode 100644 index 0000000..c231982 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/PPPD_FOLLOWUP @@ -0,0 +1,473 @@ +The lwIP PPP support is based from pppd 2.4.5 (http://ppp.samba.org) with +huge changes to match code size and memory requirements for embedded devices. + +Anyway, pppd has a mature codebase for years and the average commit count +is getting low on their Git repository, meaning that we can follow what +is happening on their side and merge what is relevant for lwIP. + +So, here is the pppd follow up, so that we don't get away too far from pppd. + + +== Patch fetched from from pppd Debian packages == + +This has nothing to do with pppd, but we merged some good patch from +Debian and this is a good place to be. + +- LCP adaptive echo, so that we don't send LCP echo request if we + are receiving data from peer, can be enabled by setting PPP_LCP_ADAPTIVE + to true. + +- IPCP no/replace default route option, were added in the early stage of + the ppp port, but it wasn't really helpful and was disabled when adding + the new API ppp_set_default() call, which gives the lwIP user control over + which one is the default interface, it was actually a requirement if you + are doing PPP over PPP (i.e. PPPoL2TP, VPN link, over PPPoE, ADSL link). + +- using rp-pppoe pppd exits with EXIT_OK after receiving a timeout waiting + for PADO due to no modem attached, bug reported to pppd bug tracker, fixed + in Debian but not in the latest (at the time when the port were started) + pppd release. + + +== Commits on pppd == + +2010-03-06 - Document +ipv6 and ipv6cp-accept-local + e7537958aee79b3f653c601e903cb31d78fb7dcc + +Don't care. + + +2010-03-06 - Install pppol2tp plugins with sane permissions + 406215672cfadc03017341fe03802d1c7294b903 + +Don't care. + + +2010-03-07 - pppd: Terminate correctly if lcp_lowerup delayed calling + fsm_lowerup + 3eb9e810cfa515543655659b72dde30c54fea0a5 + +Merged 2012-05-17. + + +2010-03-07 - rp_pppoe: Copy acName and pppd_pppoe_service after option parsing + cab58617fd9d328029fffabc788020264b4fa91f + +Don't care, is a patch for pppd/plugins/rp-pppoe/plugin.c which is not part +of the port. + + +2010-08-23 - set and reset options to control environment variables + for scripts. + 2b6310fd24dba8e0fca8999916a162f0a1842a84 + +We can't fork processes in embedded, therefore all the pppd process run +feature is disabled in the port, so we don't care about the new +"environment variables" pppd feature. + + +2010-08-23 - Nit: use _exit when exec fails and restrict values to 0-255 + per POSIX. + 2b4ea140432eeba5a007c0d4e6236bd0e0c12ba4 + +Again, we are not running as a heavy process, so all exit() or _exit() calls +were removed. + + +2010-08-23 - Fix quote handling in configuration files to be more like shell + quoting. + 3089132cdf5b58dbdfc2daf08ec5c08eb47f8aca + +We are not parsing config file, all the filesystem I/O stuff were disabled +in our port. + + +2010-08-24 - rp-pppoe: allow MTU to be increased up to 1500 + fd1dcdf758418f040da3ed801ab001b5e46854e7 + +Only concern changes on RP-PPPoE plugin, which we don't use. + + +2010-09-11 - chat: Allow TIMEOUT value to come from environment variable + ae80bf833e48a6202f44a935a68083ae52ad3824 + +See 2b6310fd24dba8e0fca8999916a162f0a1842a84. + + +2011-03-05 - pppdump: Fix printfs with insufficient arguments + 7b8db569642c83ba3283745034f2e2c95e459423 + +pppdump is a ppp tool outside pppd source tree. + + +2012-05-06 - pppd: Don't unconditionally disable VJ compression under Linux + d8a66adf98a0e525cf38031b42098d539da6eeb6 + +Patch for sys-linux.c, which we don't use. + + +2012-05-20 - Remove old version of Linux if_pppol2tp.h + c41092dd4c49267f232f6cba3d31c6c68bfdf68d + +Not in the port. + + +2012-05-20 - pppd: Make MSCHAP-v2 cope better with packet loss + 08ef47ca532294eb428238c831616748940e24a2 + +This is an interesting patch. However it consumes much more memory for +MSCHAP and I am not sure if the benefit worth it. The PPP client can +always start the authentication again if it failed for whatever reason. + + +2012-05-20 - scripts: Make poff ignore extra arguments to pppd + 18f515f32c9f5723a9c2c912601e04335106534b + +Again, we are not running scripts. + + +2012-05-20 - rp-pppoe plugin: Print leading zeros in MAC address + f5dda0cfc220c4b52e26144096d729e27b30f0f7 + +Again, we are not using the RP-PPPoE plugin. + + +2012-05-20 - pppd: Notify IPv6 up/down as we do for IPv4 + 845cda8fa18939cf56e60b073f63a7efa65336fc + +This is just a patch that adds plugins hooks for IPv6, the plugin interface +was disabled because we don't have .so plugins in embedded. + + +2012-05-20 - pppd: Enable IPV6 by default and fix some warnings + 0b6118239615e98959f7e0b4e746bdd197533248 + +Change on Makefile for IPv6, warnings were already cleared during port. + + +2012-05-20 - contrib: Fix pppgetpass.gtk compilation + 80a8e2ce257ca12cce723519a0f20ea1d663b14a + +Change on Makefile, don't care. + + +2012-05-20 - pppd: Don't crash if crypt() returns NULL + 04c4348108d847e034dd91066cc6843f60d71731 + +We are using the PolarSSL DES implementation that does not return NULL. + + +2012-05-20 - pppd: Eliminate some warnings + c44ae5e6a7338c96eb463881fe709b2dfaffe568 + +Again, we are handling compilation warnings on our own. + + +2012-05-20 - rp-pppoe plugin: Import some fixes from rp-pppoe-3.10 + 1817d83e51a411044e730ba89ebdb0480e1c8cd4 + +Once more, we are not using the RP-PPPoE plugin. + + +2013-01-23 - pppd: Clarify circumstances where DNS1/DNS2 environment variables are set + cf2f5c9538b9400ade23446a194729b0a4113b3a + +Documentation only. + + +2013-02-03 - ppp: ignore unrecognised radiusclient configuration directives + 7f736dde0da3c19855997d9e67370e351e15e923 + +Radius plugin, not in the port. + + +2013-02-03 - pppd: Take out unused %r conversion completely + 356d8d558d844412119aa18c8e5a113bc6459c7b + +Merged 2014-04-15. + + +2013-02-03 - pppd: Arrange to use logwtmp from libutil on Linux + 9617a7eb137f4fee62799a677a9ecf8d834db3f5 + +Patch for sys-linux.c, which we don't use. + + +2013-02-03 - pppdump: Eliminate some compiler warnings + 3e3acf1ba2b3046c072a42c19164788a9e419bd1 + +pppdump is a ppp tool outside pppd source tree. + + +2013-02-03 - chat: Correct spelling errors in the man page + 8dea1b969d266ccbf6f3a8c5474eb6dcd8838e3b + +Documentation only. + + +2013-02-03 - pppd: Fix spelling errors in man page + 9e05a25d76b3f83096c661678010320df673df6b + +Documentation only. + + +2013-02-03 - plugins/passprompt: Fix potential out-of-bounds array reference + 8edb889b753056a691a3e4b217a110a35f9fdedb + +Plugin patch, we do not have plugins. + + +2013-02-03 - chat: Fix *roff errors in the man page + a7c3489eeaf44e83ce592143c7c8a5b5c29f4c48 + +Documentation only. + + +2013-03-02 - pppd: Fix man page description of case when remote IP address isn't known + 224841f4799f4f1e2e71bc490c54448d66740f4f + +Documentation only. + + +2013-03-02 - pppd: Add master_detach option + 398ed2585640d198c53e736ee5bbd67f7ce8168e + +Option for multilink support, we do not support multilink and this option +is about detaching from the terminal, which is out of the embedded scope. + + +2013-03-11 - pppd: Default exit status to EXIT_CONNECT_FAILED during connection phase + 225361d64ae737afdc8cb57579a2f33525461bc9 + +Commented out in our port, and already fixed by a previously applied Debian patch. + + +2013-03-11 - pppstats: Fix undefined macro in man page + d16a3985eade5280b8e171f5dd0670a91cba0d39 + +Documentation only. + + +2013-05-11 - plugins/radius: Handle bindaddr keyword in radiusclient.conf + d883b2dbafeed3ebd9d7a56ab1469373bd001a3b + +Radius plugin, not in the port. + + +2013-06-09 - pppoatm: Remove explicit loading of pppoatm kernel module + 52cd43a84bea524033b918b603698104f221bbb7 + +PPPoATM plugin, not in the port. + + +2013-06-09 - pppd: Fix segfault in update_db_entry() + 37476164f15a45015310b9d4b197c2d7db1f7f8f + +We do not use the samba db. + + +2013-06-09 - chat: Fix some text that was intended to be literal + cd9683676618adcee8add2c3cfa3382341b5a1f6 + +Documentation only. + + +2013-06-09 - README.pppoe: Minor semantic fix + b5b8898af6fd3d44e873cfc66810ace5f1f47e17 + +Documentation only. + + +2013-06-10 - radius: Handle additional attributes + 2f581cd986a56f2ec4a95abad4f8297a1b10d7e2 + +Radius plugin, not in the port. + + +2013-06-10 - chat, pppd: Use \e instead of \\ in man pages + 8d6942415d22f6ca4377340ca26e345c3f5fa5db + +Documentation only. + + +2014-01-02 - pppd: Don't crash if NULL pointer passed to vslprintf for %q or %v + 906814431bddeb2061825fa1ebad1a967b6d87a9 + +Merged 2014-04-15. + + +2014-01-02 - pppd: Accept IPCP ConfAck packets containing MS-WINS options + a243f217f1c6ac1aa7793806bc88590d077f490a + +Merged 2014-04-15. + + +2014-01-02 - config: Update Solaris compiler options and enable CHAPMS and IPV6 + 99c46caaed01b7edba87962aa52b77fad61bfd7b + +Solaris port, don't care. + + +2014-01-02 - Update README and patchlevel for 2.4.6 release + 4043750fca36e7e0eb90d702e048ad1da4929418 + +Just release stuff. + + +2014-02-18 - pppd: Add option "stop-bits" to set number of serial port stop bits. + ad993a20ee485f0d0e2ac4105221641b200da6e2 + +Low level serial port, not in the port. + + +2014-03-09 - pppd: Separate IPv6 handling for sifup/sifdown + b04d2dc6df5c6b5650fea44250d58757ee3dac4a + +Reimplemented. + + +2014-03-09 - pppol2tp: Connect up/down events to notifiers and add IPv6 ones + fafbe50251efc7d6b4a8be652d085316e112b34f + +Not in the port. + + +2014-03-09 - pppd: Add declarations to eliminate compile warnings + 50967962addebe15c7a7e63116ff46a0441dc464 + +We are handling compilation warnings on our own + + +2014-03-09 - pppd: Eliminate some unnecessary ifdefs + de8da14d845ee6db9236ccfddabf1d8ebf045ddb + +We mostly did that previously. Anyway, merged 2014-12-24. + + +2014-08-01 - radius: Fix realms-config-file option + 880a81be7c8e0fe8567227bc17a1bff3ea035943 + +Radius plugin, not in the port. + + +2014-08-01 - pppd: Eliminate potential integer overflow in option parsing + 7658e8257183f062dc01f87969c140707c7e52cb + +pppd config file parser, not in the port. + + +2014-08-01 - pppd: Eliminate memory leak with multiple instances of a string option + b94b7fbbaa0589aa6ec5fdc733aeb9ff294d2656 + +pppd config file parser, not in the port. + + +2014-08-01 - pppd: Fix a stack variable overflow in MSCHAP-v2 + 36733a891fb56594fcee580f667b33a64b990981 + +This fixes a bug introduced in 08ef47ca ("pppd: Make MSCHAP-v2 cope better with packet loss"). + +We didn't merge 08ef47ca ;-) + + +2014-08-01 - winbind plugin: Add -DMPPE=1 to eliminate compiler warnings + 2b05e22c62095e97dd0a97e4b5588402c2185071 + +Linux plugin, not in the port. + + +2014-08-09 - Update README and patchlevel for 2.4.7 release + 6e8eaa7a78b31cdab2edf140a9c8afdb02ffaca5 + +Just release stuff. + + +2014-08-10 - abort on errors in subdir builds + 5e90783d11a59268e05f4cfb29ce2343b13e8ab2 + +Linux Makefile, not in the port. + + +2014-06-03 - pppd: add support for defaultroute-metric option + 35e5a569c988b1ff865b02a24d9a727a00db4da9 + +Only necessary for Linux, lwIP does not support route metrics. + + +2014-12-13 - scripts: Avoid killing wrong pppd + 67811a647d399db5d188a242827760615a0f86b5 + +pppd helper script, not in the port. + + +2014-12-20 - pppd: Fix sign-extension when displaying bytes in octal + 5e8c3cb256a7e86e3572a82a75d51c6850efdbdc + +Merged 2016-07-02. + + +2015-03-01 - Suppress false error message on PPPoE disconnect + 219aac3b53d0827549377f1bfe22853ee52d4405 + +PPPoE plugin, not in the port. + + +2015-03-01 - Send PADT on PPPoE disconnect + cd2c14f998c57bbe6a01dc5854f2763c0d7f31fb + +PPPoE plugin, not in the port. And our PPPoE implementation already does +that: pppoe_disconnect() calls pppoe_send_padt(). + + +2015-08-14 - pppd: ipxcp: Prevent buffer overrun on remote router name + fe149de624f96629a7f46732055d8f718c74b856 + +We never ported IPX support. lwIP does not support IPX. + + +2015-03-25 - pppd: Fix ccp_options.mppe type + 234edab99a6bb250cc9ecd384cca27b0c8b475ce + +We found that while working on MPPE support in lwIP, that's our patch ;-) + + +2015-03-24 - pppd: Fix ccp_cilen calculated size if both deflate_correct and deflate_draft are enabled + 094cb8ae4c61db225e67fedadb4964f846dd0c27 + +We found that while working on MPPE support in lwIP, that's our patch ;-) + + +2015-08-14 - Merge branch 'master' of https://github.com/ncopa/ppp + 3a5c9a8fbc8970375cd881151d44e4b6fe249c6a + +Merge commit, we don't care. + + +2015-08-14 - Merge branch 'master' of git://github.com/vapier/ppp + 912e4fc6665aca188dced7ea7fdc663ce5a2dd24 + +Merge commit, we don't care. + + +2015-08-14 - Merge branch 'bug_fix' of git://github.com/radaiming/ppp + dfd33d7f526ecd7b39dd1bba8101260d02af5ebb + +Merge commit, we don't care. + + +2015-08-14 - Merge branch 'master' of git://github.com/pprindeville/ppp + aa4a985f6114d08cf4e47634fb6325da71016473 + +Merge commit, we don't care. + + +2015-08-14 - Merge branch 'no-error-on-already-closed' of git://github.com/farnz/ppp + 6edf252483b30dbcdcc5059f01831455365d5b6e + +Merge commit, we don't care. + + +2015-08-14 - Merge branch 'send-padt-on-disconnect' of git://github.com/farnz/ppp + 84684243d651f55f6df69d2a6707b52fbbe62bb9 + +Merge commit, we don't care. diff --git a/middleware/lwip/src/netif/ppp/auth.c b/middleware/lwip/src/netif/ppp/auth.c new file mode 100644 index 0000000..7a74292 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/auth.c @@ -0,0 +1,2510 @@ +/* + * auth.c - PPP authentication and phase control. + * + * Copyright (c) 1993-2002 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Derived from main.c, which is: + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#if 0 /* UNUSED */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#if defined(_PATH_LASTLOG) && defined(__linux__) +#include +#endif + +#include +#include +#include + +#ifdef HAS_SHADOW +#include +#ifndef PW_PPP +#define PW_PPP PW_LOGIN +#endif +#endif + +#include +#endif /* UNUSED */ + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/fsm.h" +#include "netif/ppp/lcp.h" +#if CCP_SUPPORT +#include "netif/ppp/ccp.h" +#endif /* CCP_SUPPORT */ +#if ECP_SUPPORT +#include "netif/ppp/ecp.h" +#endif /* ECP_SUPPORT */ +#include "netif/ppp/ipcp.h" +#if PAP_SUPPORT +#include "netif/ppp/upap.h" +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT +#include "netif/ppp/chap-new.h" +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT +#include "netif/ppp/eap.h" +#endif /* EAP_SUPPORT */ +#if CBCP_SUPPORT +#include "netif/ppp/cbcp.h" +#endif + +#if 0 /* UNUSED */ +#include "session.h" +#endif /* UNUSED */ + +#if 0 /* UNUSED */ +/* Bits in scan_authfile return value */ +#define NONWILD_SERVER 1 +#define NONWILD_CLIENT 2 + +#define ISWILD(word) (word[0] == '*' && word[1] == 0) +#endif /* UNUSED */ + +#if 0 /* UNUSED */ +/* List of addresses which the peer may use. */ +static struct permitted_ip *addresses[NUM_PPP]; + +/* Wordlist giving addresses which the peer may use + without authenticating itself. */ +static struct wordlist *noauth_addrs; + +/* Remote telephone number, if available */ +char remote_number[MAXNAMELEN]; + +/* Wordlist giving remote telephone numbers which may connect. */ +static struct wordlist *permitted_numbers; + +/* Extra options to apply, from the secrets file entry for the peer. */ +static struct wordlist *extra_options; +#endif /* UNUSED */ + +#if 0 /* UNUSED */ +/* Set if we require authentication only because we have a default route. */ +static bool default_auth; + +/* Hook to enable a plugin to control the idle time limit */ +int (*idle_time_hook) (struct ppp_idle *) = NULL; + +/* Hook for a plugin to say whether we can possibly authenticate any peer */ +int (*pap_check_hook) (void) = NULL; + +/* Hook for a plugin to check the PAP user and password */ +int (*pap_auth_hook) (char *user, char *passwd, char **msgp, + struct wordlist **paddrs, + struct wordlist **popts) = NULL; + +/* Hook for a plugin to know about the PAP user logout */ +void (*pap_logout_hook) (void) = NULL; + +/* Hook for a plugin to get the PAP password for authenticating us */ +int (*pap_passwd_hook) (char *user, char *passwd) = NULL; + +/* Hook for a plugin to say if we can possibly authenticate a peer using CHAP */ +int (*chap_check_hook) (void) = NULL; + +/* Hook for a plugin to get the CHAP password for authenticating us */ +int (*chap_passwd_hook) (char *user, char *passwd) = NULL; + +/* Hook for a plugin to say whether it is OK if the peer + refuses to authenticate. */ +int (*null_auth_hook) (struct wordlist **paddrs, + struct wordlist **popts) = NULL; + +int (*allowed_address_hook) (u32_t addr) = NULL; +#endif /* UNUSED */ + +#ifdef HAVE_MULTILINK +/* Hook for plugin to hear when an interface joins a multilink bundle */ +void (*multilink_join_hook) (void) = NULL; +#endif + +#if PPP_NOTIFY +/* A notifier for when the peer has authenticated itself, + and we are proceeding to the network phase. */ +struct notifier *auth_up_notifier = NULL; + +/* A notifier for when the link goes down. */ +struct notifier *link_down_notifier = NULL; +#endif /* PPP_NOTIFY */ + +/* + * Option variables. + */ +#if 0 /* MOVED TO ppp_settings */ +bool uselogin = 0; /* Use /etc/passwd for checking PAP */ +bool session_mgmt = 0; /* Do session management (login records) */ +bool cryptpap = 0; /* Passwords in pap-secrets are encrypted */ +bool refuse_pap = 0; /* Don't wanna auth. ourselves with PAP */ +bool refuse_chap = 0; /* Don't wanna auth. ourselves with CHAP */ +bool refuse_eap = 0; /* Don't wanna auth. ourselves with EAP */ +#if MSCHAP_SUPPORT +bool refuse_mschap = 0; /* Don't wanna auth. ourselves with MS-CHAP */ +bool refuse_mschap_v2 = 0; /* Don't wanna auth. ourselves with MS-CHAPv2 */ +#else /* MSCHAP_SUPPORT */ +bool refuse_mschap = 1; /* Don't wanna auth. ourselves with MS-CHAP */ +bool refuse_mschap_v2 = 1; /* Don't wanna auth. ourselves with MS-CHAPv2 */ +#endif /* MSCHAP_SUPPORT */ +bool usehostname = 0; /* Use hostname for our_name */ +bool auth_required = 0; /* Always require authentication from peer */ +bool allow_any_ip = 0; /* Allow peer to use any IP address */ +bool explicit_remote = 0; /* User specified explicit remote name */ +bool explicit_user = 0; /* Set if "user" option supplied */ +bool explicit_passwd = 0; /* Set if "password" option supplied */ +char remote_name[MAXNAMELEN]; /* Peer's name for authentication */ +static char *uafname; /* name of most recent +ua file */ + +extern char *crypt (const char *, const char *); +#endif /* UNUSED */ +/* Prototypes for procedures local to this file. */ + +static void network_phase(ppp_pcb *pcb); +#if PPP_IDLETIMELIMIT +static void check_idle(void *arg); +#endif /* PPP_IDLETIMELIMIT */ +#if PPP_MAXCONNECT +static void connect_time_expired(void *arg); +#endif /* PPP_MAXCONNECT */ +#if 0 /* UNUSED */ +static int null_login (int); +/* static int get_pap_passwd (char *); */ +static int have_pap_secret (int *); +static int have_chap_secret (char *, char *, int, int *); +static int have_srp_secret (char *client, char *server, int need_ip, + int *lacks_ipp); +static int ip_addr_check (u32_t, struct permitted_ip *); +static int scan_authfile (FILE *, char *, char *, char *, + struct wordlist **, struct wordlist **, + char *, int); +static void free_wordlist (struct wordlist *); +static void set_allowed_addrs (int, struct wordlist *, struct wordlist *); +static int some_ip_ok (struct wordlist *); +static int setupapfile (char **); +static int privgroup (char **); +static int set_noauth_addr (char **); +static int set_permitted_number (char **); +static void check_access (FILE *, char *); +static int wordlist_count (struct wordlist *); +#endif /* UNUSED */ + +#ifdef MAXOCTETS +static void check_maxoctets (void *); +#endif + +#if PPP_OPTIONS +/* + * Authentication-related options. + */ +option_t auth_options[] = { + { "auth", o_bool, &auth_required, + "Require authentication from peer", OPT_PRIO | 1 }, + { "noauth", o_bool, &auth_required, + "Don't require peer to authenticate", OPT_PRIOSUB | OPT_PRIV, + &allow_any_ip }, + { "require-pap", o_bool, &lcp_wantoptions[0].neg_upap, + "Require PAP authentication from peer", + OPT_PRIOSUB | 1, &auth_required }, + { "+pap", o_bool, &lcp_wantoptions[0].neg_upap, + "Require PAP authentication from peer", + OPT_ALIAS | OPT_PRIOSUB | 1, &auth_required }, + { "require-chap", o_bool, &auth_required, + "Require CHAP authentication from peer", + OPT_PRIOSUB | OPT_A2OR | MDTYPE_MD5, + &lcp_wantoptions[0].chap_mdtype }, + { "+chap", o_bool, &auth_required, + "Require CHAP authentication from peer", + OPT_ALIAS | OPT_PRIOSUB | OPT_A2OR | MDTYPE_MD5, + &lcp_wantoptions[0].chap_mdtype }, +#if MSCHAP_SUPPORT + { "require-mschap", o_bool, &auth_required, + "Require MS-CHAP authentication from peer", + OPT_PRIOSUB | OPT_A2OR | MDTYPE_MICROSOFT, + &lcp_wantoptions[0].chap_mdtype }, + { "+mschap", o_bool, &auth_required, + "Require MS-CHAP authentication from peer", + OPT_ALIAS | OPT_PRIOSUB | OPT_A2OR | MDTYPE_MICROSOFT, + &lcp_wantoptions[0].chap_mdtype }, + { "require-mschap-v2", o_bool, &auth_required, + "Require MS-CHAPv2 authentication from peer", + OPT_PRIOSUB | OPT_A2OR | MDTYPE_MICROSOFT_V2, + &lcp_wantoptions[0].chap_mdtype }, + { "+mschap-v2", o_bool, &auth_required, + "Require MS-CHAPv2 authentication from peer", + OPT_ALIAS | OPT_PRIOSUB | OPT_A2OR | MDTYPE_MICROSOFT_V2, + &lcp_wantoptions[0].chap_mdtype }, +#endif /* MSCHAP_SUPPORT */ +#if 0 + { "refuse-pap", o_bool, &refuse_pap, + "Don't agree to auth to peer with PAP", 1 }, + { "-pap", o_bool, &refuse_pap, + "Don't allow PAP authentication with peer", OPT_ALIAS | 1 }, + { "refuse-chap", o_bool, &refuse_chap, + "Don't agree to auth to peer with CHAP", + OPT_A2CLRB | MDTYPE_MD5, + &lcp_allowoptions[0].chap_mdtype }, + { "-chap", o_bool, &refuse_chap, + "Don't allow CHAP authentication with peer", + OPT_ALIAS | OPT_A2CLRB | MDTYPE_MD5, + &lcp_allowoptions[0].chap_mdtype }, +#endif +#if MSCHAP_SUPPORT +#if 0 + { "refuse-mschap", o_bool, &refuse_mschap, + "Don't agree to auth to peer with MS-CHAP", + OPT_A2CLRB | MDTYPE_MICROSOFT, + &lcp_allowoptions[0].chap_mdtype }, + { "-mschap", o_bool, &refuse_mschap, + "Don't allow MS-CHAP authentication with peer", + OPT_ALIAS | OPT_A2CLRB | MDTYPE_MICROSOFT, + &lcp_allowoptions[0].chap_mdtype }, + { "refuse-mschap-v2", o_bool, &refuse_mschap_v2, + "Don't agree to auth to peer with MS-CHAPv2", + OPT_A2CLRB | MDTYPE_MICROSOFT_V2, + &lcp_allowoptions[0].chap_mdtype }, + { "-mschap-v2", o_bool, &refuse_mschap_v2, + "Don't allow MS-CHAPv2 authentication with peer", + OPT_ALIAS | OPT_A2CLRB | MDTYPE_MICROSOFT_V2, + &lcp_allowoptions[0].chap_mdtype }, +#endif +#endif /* MSCHAP_SUPPORT*/ +#if EAP_SUPPORT + { "require-eap", o_bool, &lcp_wantoptions[0].neg_eap, + "Require EAP authentication from peer", OPT_PRIOSUB | 1, + &auth_required }, +#if 0 + { "refuse-eap", o_bool, &refuse_eap, + "Don't agree to authenticate to peer with EAP", 1 }, +#endif +#endif /* EAP_SUPPORT */ + { "name", o_string, our_name, + "Set local name for authentication", + OPT_PRIO | OPT_PRIV | OPT_STATIC, NULL, MAXNAMELEN }, + + { "+ua", o_special, (void *)setupapfile, + "Get PAP user and password from file", + OPT_PRIO | OPT_A2STRVAL, &uafname }, + +#if 0 + { "user", o_string, user, + "Set name for auth with peer", OPT_PRIO | OPT_STATIC, + &explicit_user, MAXNAMELEN }, + + { "password", o_string, passwd, + "Password for authenticating us to the peer", + OPT_PRIO | OPT_STATIC | OPT_HIDE, + &explicit_passwd, MAXSECRETLEN }, +#endif + + { "usehostname", o_bool, &usehostname, + "Must use hostname for authentication", 1 }, + + { "remotename", o_string, remote_name, + "Set remote name for authentication", OPT_PRIO | OPT_STATIC, + &explicit_remote, MAXNAMELEN }, + + { "login", o_bool, &uselogin, + "Use system password database for PAP", OPT_A2COPY | 1 , + &session_mgmt }, + { "enable-session", o_bool, &session_mgmt, + "Enable session accounting for remote peers", OPT_PRIV | 1 }, + + { "papcrypt", o_bool, &cryptpap, + "PAP passwords are encrypted", 1 }, + + { "privgroup", o_special, (void *)privgroup, + "Allow group members to use privileged options", OPT_PRIV | OPT_A2LIST }, + + { "allow-ip", o_special, (void *)set_noauth_addr, + "Set IP address(es) which can be used without authentication", + OPT_PRIV | OPT_A2LIST }, + + { "remotenumber", o_string, remote_number, + "Set remote telephone number for authentication", OPT_PRIO | OPT_STATIC, + NULL, MAXNAMELEN }, + + { "allow-number", o_special, (void *)set_permitted_number, + "Set telephone number(s) which are allowed to connect", + OPT_PRIV | OPT_A2LIST }, + + { NULL } +}; +#endif /* PPP_OPTIONS */ + +#if 0 /* UNUSED */ +/* + * setupapfile - specifies UPAP info for authenticating with peer. + */ +static int +setupapfile(argv) + char **argv; +{ + FILE *ufile; + int l; + uid_t euid; + char u[MAXNAMELEN], p[MAXSECRETLEN]; + char *fname; + + lcp_allowoptions[0].neg_upap = 1; + + /* open user info file */ + fname = strdup(*argv); + if (fname == NULL) + novm("+ua file name"); + euid = geteuid(); + if (seteuid(getuid()) == -1) { + option_error("unable to reset uid before opening %s: %m", fname); + return 0; + } + ufile = fopen(fname, "r"); + if (seteuid(euid) == -1) + fatal("unable to regain privileges: %m"); + if (ufile == NULL) { + option_error("unable to open user login data file %s", fname); + return 0; + } + check_access(ufile, fname); + uafname = fname; + + /* get username */ + if (fgets(u, MAXNAMELEN - 1, ufile) == NULL + || fgets(p, MAXSECRETLEN - 1, ufile) == NULL) { + fclose(ufile); + option_error("unable to read user login data file %s", fname); + return 0; + } + fclose(ufile); + + /* get rid of newlines */ + l = strlen(u); + if (l > 0 && u[l-1] == '\n') + u[l-1] = 0; + l = strlen(p); + if (l > 0 && p[l-1] == '\n') + p[l-1] = 0; + + if (override_value("user", option_priority, fname)) { + strlcpy(ppp_settings.user, u, sizeof(ppp_settings.user)); + explicit_user = 1; + } + if (override_value("passwd", option_priority, fname)) { + strlcpy(ppp_settings.passwd, p, sizeof(ppp_settings.passwd)); + explicit_passwd = 1; + } + + return (1); +} + +/* + * privgroup - allow members of the group to have privileged access. + */ +static int +privgroup(argv) + char **argv; +{ + struct group *g; + int i; + + g = getgrnam(*argv); + if (g == 0) { + option_error("group %s is unknown", *argv); + return 0; + } + for (i = 0; i < ngroups; ++i) { + if (groups[i] == g->gr_gid) { + privileged = 1; + break; + } + } + return 1; +} + + +/* + * set_noauth_addr - set address(es) that can be used without authentication. + * Equivalent to specifying an entry like `"" * "" addr' in pap-secrets. + */ +static int +set_noauth_addr(argv) + char **argv; +{ + char *addr = *argv; + int l = strlen(addr) + 1; + struct wordlist *wp; + + wp = (struct wordlist *) malloc(sizeof(struct wordlist) + l); + if (wp == NULL) + novm("allow-ip argument"); + wp->word = (char *) (wp + 1); + wp->next = noauth_addrs; + MEMCPY(wp->word, addr, l); + noauth_addrs = wp; + return 1; +} + + +/* + * set_permitted_number - set remote telephone number(s) that may connect. + */ +static int +set_permitted_number(argv) + char **argv; +{ + char *number = *argv; + int l = strlen(number) + 1; + struct wordlist *wp; + + wp = (struct wordlist *) malloc(sizeof(struct wordlist) + l); + if (wp == NULL) + novm("allow-number argument"); + wp->word = (char *) (wp + 1); + wp->next = permitted_numbers; + MEMCPY(wp->word, number, l); + permitted_numbers = wp; + return 1; +} +#endif + +/* + * An Open on LCP has requested a change from Dead to Establish phase. + */ +void link_required(ppp_pcb *pcb) { + LWIP_UNUSED_ARG(pcb); +} + +#if 0 +/* + * Bring the link up to the point of being able to do ppp. + */ +void start_link(unit) + int unit; +{ + ppp_pcb *pcb = &ppp_pcb_list[unit]; + char *msg; + + status = EXIT_NEGOTIATION_FAILED; + new_phase(pcb, PPP_PHASE_SERIALCONN); + + hungup = 0; + devfd = the_channel->connect(); + msg = "Connect script failed"; + if (devfd < 0) + goto fail; + + /* set up the serial device as a ppp interface */ + /* + * N.B. we used to do tdb_writelock/tdb_writeunlock around this + * (from establish_ppp to set_ifunit). However, we won't be + * doing the set_ifunit in multilink mode, which is the only time + * we need the atomicity that the tdb_writelock/tdb_writeunlock + * gives us. Thus we don't need the tdb_writelock/tdb_writeunlock. + */ + fd_ppp = the_channel->establish_ppp(devfd); + msg = "ppp establishment failed"; + if (fd_ppp < 0) { + status = EXIT_FATAL_ERROR; + goto disconnect; + } + + if (!demand && ifunit >= 0) + set_ifunit(1); + + /* + * Start opening the connection and wait for + * incoming events (reply, timeout, etc.). + */ + if (ifunit >= 0) + ppp_notice(("Connect: %s <--> %s", ifname, ppp_devnam)); + else + ppp_notice(("Starting negotiation on %s", ppp_devnam)); + add_fd(fd_ppp); + + new_phase(pcb, PPP_PHASE_ESTABLISH); + + lcp_lowerup(pcb); + return; + + disconnect: + new_phase(pcb, PPP_PHASE_DISCONNECT); + if (the_channel->disconnect) + the_channel->disconnect(); + + fail: + new_phase(pcb, PPP_PHASE_DEAD); + if (the_channel->cleanup) + (*the_channel->cleanup)(); +} +#endif + +/* + * LCP has terminated the link; go to the Dead phase and take the + * physical layer down. + */ +void link_terminated(ppp_pcb *pcb) { + if (pcb->phase == PPP_PHASE_DEAD +#ifdef HAVE_MULTILINK + || pcb->phase == PPP_PHASE_MASTER +#endif /* HAVE_MULTILINK */ + ) + return; + new_phase(pcb, PPP_PHASE_DISCONNECT); + +#if 0 /* UNUSED */ + if (pap_logout_hook) { + pap_logout_hook(); + } + session_end(devnam); +#endif /* UNUSED */ + + if (!doing_multilink) { + ppp_notice(("Connection terminated.")); +#if PPP_STATS_SUPPORT + print_link_stats(); +#endif /* PPP_STATS_SUPPORT */ + } else + ppp_notice(("Link terminated.")); + + lcp_lowerdown(pcb); + + ppp_link_terminated(pcb); +#if 0 + /* + * Delete pid files before disestablishing ppp. Otherwise it + * can happen that another pppd gets the same unit and then + * we delete its pid file. + */ + if (!doing_multilink && !demand) + remove_pidfiles(); + + /* + * If we may want to bring the link up again, transfer + * the ppp unit back to the loopback. Set the + * real serial device back to its normal mode of operation. + */ + if (fd_ppp >= 0) { + remove_fd(fd_ppp); + clean_check(); + the_channel->disestablish_ppp(devfd); + if (doing_multilink) + mp_exit_bundle(); + fd_ppp = -1; + } + if (!hungup) + lcp_lowerdown(pcb); + if (!doing_multilink && !demand) + script_unsetenv("IFNAME"); + + /* + * Run disconnector script, if requested. + * XXX we may not be able to do this if the line has hung up! + */ + if (devfd >= 0 && the_channel->disconnect) { + the_channel->disconnect(); + devfd = -1; + } + if (the_channel->cleanup) + (*the_channel->cleanup)(); + + if (doing_multilink && multilink_master) { + if (!bundle_terminating) + new_phase(pcb, PPP_PHASE_MASTER); + else + mp_bundle_terminated(); + } else + new_phase(pcb, PPP_PHASE_DEAD); +#endif +} + +/* + * LCP has gone down; it will either die or try to re-establish. + */ +void link_down(ppp_pcb *pcb) { +#if PPP_NOTIFY + notify(link_down_notifier, 0); +#endif /* PPP_NOTIFY */ + + if (!doing_multilink) { + upper_layers_down(pcb); + if (pcb->phase != PPP_PHASE_DEAD +#ifdef HAVE_MULTILINK + && pcb->phase != PPP_PHASE_MASTER +#endif /* HAVE_MULTILINK */ + ) + new_phase(pcb, PPP_PHASE_ESTABLISH); + } + /* XXX if doing_multilink, should do something to stop + network-layer traffic on the link */ +} + +void upper_layers_down(ppp_pcb *pcb) { + int i; + const struct protent *protp; + + for (i = 0; (protp = protocols[i]) != NULL; ++i) { + if (protp->protocol != PPP_LCP && protp->lowerdown != NULL) + (*protp->lowerdown)(pcb); + if (protp->protocol < 0xC000 && protp->close != NULL) + (*protp->close)(pcb, "LCP down"); + } + pcb->num_np_open = 0; + pcb->num_np_up = 0; +} + +/* + * The link is established. + * Proceed to the Dead, Authenticate or Network phase as appropriate. + */ +void link_established(ppp_pcb *pcb) { +#if PPP_AUTH_SUPPORT + int auth; +#if PPP_SERVER +#if PAP_SUPPORT + lcp_options *wo = &pcb->lcp_wantoptions; +#endif /* PAP_SUPPORT */ + lcp_options *go = &pcb->lcp_gotoptions; +#endif /* PPP_SERVER */ + lcp_options *ho = &pcb->lcp_hisoptions; +#endif /* PPP_AUTH_SUPPORT */ + int i; + const struct protent *protp; + + /* + * Tell higher-level protocols that LCP is up. + */ + if (!doing_multilink) { + for (i = 0; (protp = protocols[i]) != NULL; ++i) + if (protp->protocol != PPP_LCP + && protp->lowerup != NULL) + (*protp->lowerup)(pcb); + } + +#if PPP_AUTH_SUPPORT +#if PPP_SERVER +#if PPP_ALLOWED_ADDRS + if (!auth_required && noauth_addrs != NULL) + set_allowed_addrs(unit, NULL, NULL); +#endif /* PPP_ALLOWED_ADDRS */ + + if (pcb->settings.auth_required && !(0 +#if PAP_SUPPORT + || go->neg_upap +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + || go->neg_chap +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + || go->neg_eap +#endif /* EAP_SUPPORT */ + )) { + +#if PPP_ALLOWED_ADDRS + /* + * We wanted the peer to authenticate itself, and it refused: + * if we have some address(es) it can use without auth, fine, + * otherwise treat it as though it authenticated with PAP using + * a username of "" and a password of "". If that's not OK, + * boot it out. + */ + if (noauth_addrs != NULL) { + set_allowed_addrs(unit, NULL, NULL); + } else +#endif /* PPP_ALLOWED_ADDRS */ + if (!pcb->settings.null_login +#if PAP_SUPPORT + || !wo->neg_upap +#endif /* PAP_SUPPORT */ + ) { + ppp_warn(("peer refused to authenticate: terminating link")); +#if 0 /* UNUSED */ + status = EXIT_PEER_AUTH_FAILED; +#endif /* UNUSED */ + pcb->err_code = PPPERR_AUTHFAIL; + lcp_close(pcb, "peer refused to authenticate"); + return; + } + } +#endif /* PPP_SERVER */ + + new_phase(pcb, PPP_PHASE_AUTHENTICATE); + auth = 0; +#if PPP_SERVER +#if EAP_SUPPORT + if (go->neg_eap) { + eap_authpeer(pcb, PPP_OUR_NAME); + auth |= EAP_PEER; + } else +#endif /* EAP_SUPPORT */ +#if CHAP_SUPPORT + if (go->neg_chap) { + chap_auth_peer(pcb, PPP_OUR_NAME, CHAP_DIGEST(go->chap_mdtype)); + auth |= CHAP_PEER; + } else +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + if (go->neg_upap) { + upap_authpeer(pcb); + auth |= PAP_PEER; + } else +#endif /* PAP_SUPPORT */ + {} +#endif /* PPP_SERVER */ + +#if EAP_SUPPORT + if (ho->neg_eap) { + eap_authwithpeer(pcb, pcb->settings.user); + auth |= EAP_WITHPEER; + } else +#endif /* EAP_SUPPORT */ +#if CHAP_SUPPORT + if (ho->neg_chap) { + chap_auth_with_peer(pcb, pcb->settings.user, CHAP_DIGEST(ho->chap_mdtype)); + auth |= CHAP_WITHPEER; + } else +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + if (ho->neg_upap) { + upap_authwithpeer(pcb, pcb->settings.user, pcb->settings.passwd); + auth |= PAP_WITHPEER; + } else +#endif /* PAP_SUPPORT */ + {} + + pcb->auth_pending = auth; + pcb->auth_done = 0; + + if (!auth) +#endif /* PPP_AUTH_SUPPORT */ + network_phase(pcb); +} + +/* + * Proceed to the network phase. + */ +static void network_phase(ppp_pcb *pcb) { +#if CBCP_SUPPORT + ppp_pcb *pcb = &ppp_pcb_list[unit]; +#endif +#if 0 /* UNUSED */ + lcp_options *go = &lcp_gotoptions[unit]; +#endif /* UNUSED */ + +#if 0 /* UNUSED */ + /* Log calling number. */ + if (*remote_number) + ppp_notice(("peer from calling number %q authorized", remote_number)); +#endif /* UNUSED */ + +#if PPP_NOTIFY + /* + * If the peer had to authenticate, notify it now. + */ + if (0 +#if CHAP_SUPPORT + || go->neg_chap +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + || go->neg_upap +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + || go->neg_eap +#endif /* EAP_SUPPORT */ + ) { + notify(auth_up_notifier, 0); + } +#endif /* PPP_NOTIFY */ + +#if CBCP_SUPPORT + /* + * If we negotiated callback, do it now. + */ + if (go->neg_cbcp) { + new_phase(pcb, PPP_PHASE_CALLBACK); + (*cbcp_protent.open)(pcb); + return; + } +#endif + +#if PPP_OPTIONS + /* + * Process extra options from the secrets file + */ + if (extra_options) { + options_from_list(extra_options, 1); + free_wordlist(extra_options); + extra_options = 0; + } +#endif /* PPP_OPTIONS */ + start_networks(pcb); +} + +void start_networks(ppp_pcb *pcb) { +#if CCP_SUPPORT || ECP_SUPPORT + int i; + const struct protent *protp; +#endif /* CCP_SUPPORT || ECP_SUPPORT */ + + new_phase(pcb, PPP_PHASE_NETWORK); + +#ifdef HAVE_MULTILINK + if (multilink) { + if (mp_join_bundle()) { + if (multilink_join_hook) + (*multilink_join_hook)(); + if (updetach && !nodetach) + detach(); + return; + } + } +#endif /* HAVE_MULTILINK */ + +#ifdef PPP_FILTER + if (!demand) + set_filters(&pass_filter, &active_filter); +#endif +#if CCP_SUPPORT || ECP_SUPPORT + /* Start CCP and ECP */ + for (i = 0; (protp = protocols[i]) != NULL; ++i) + if ( + (0 +#if ECP_SUPPORT + || protp->protocol == PPP_ECP +#endif /* ECP_SUPPORT */ +#if CCP_SUPPORT + || protp->protocol == PPP_CCP +#endif /* CCP_SUPPORT */ + ) + && protp->open != NULL) + (*protp->open)(pcb); +#endif /* CCP_SUPPORT || ECP_SUPPORT */ + + /* + * Bring up other network protocols iff encryption is not required. + */ + if (1 +#if ECP_SUPPORT + && !ecp_gotoptions[unit].required +#endif /* ECP_SUPPORT */ +#if MPPE_SUPPORT + && !pcb->ccp_gotoptions.mppe +#endif /* MPPE_SUPPORT */ + ) + continue_networks(pcb); +} + +void continue_networks(ppp_pcb *pcb) { + int i; + const struct protent *protp; + + /* + * Start the "real" network protocols. + */ + for (i = 0; (protp = protocols[i]) != NULL; ++i) + if (protp->protocol < 0xC000 +#if CCP_SUPPORT + && protp->protocol != PPP_CCP +#endif /* CCP_SUPPORT */ +#if ECP_SUPPORT + && protp->protocol != PPP_ECP +#endif /* ECP_SUPPORT */ + && protp->open != NULL) { + (*protp->open)(pcb); + ++pcb->num_np_open; + } + + if (pcb->num_np_open == 0) + /* nothing to do */ + lcp_close(pcb, "No network protocols running"); +} + +#if PPP_AUTH_SUPPORT +#if PPP_SERVER +/* + * auth_check_passwd - Check the user name and passwd against configuration. + * + * returns: + * 0: Authentication failed. + * 1: Authentication succeeded. + * In either case, msg points to an appropriate message and msglen to the message len. + */ +int auth_check_passwd(ppp_pcb *pcb, char *auser, int userlen, char *apasswd, int passwdlen, const char **msg, int *msglen) { + int secretuserlen; + int secretpasswdlen; + + if (pcb->settings.user && pcb->settings.passwd) { + secretuserlen = (int)strlen(pcb->settings.user); + secretpasswdlen = (int)strlen(pcb->settings.passwd); + if (secretuserlen == userlen + && secretpasswdlen == passwdlen + && !memcmp(auser, pcb->settings.user, userlen) + && !memcmp(apasswd, pcb->settings.passwd, passwdlen) ) { + *msg = "Login ok"; + *msglen = sizeof("Login ok")-1; + return 1; + } + } + + *msg = "Login incorrect"; + *msglen = sizeof("Login incorrect")-1; + return 0; +} + +/* + * The peer has failed to authenticate himself using `protocol'. + */ +void auth_peer_fail(ppp_pcb *pcb, int protocol) { + LWIP_UNUSED_ARG(protocol); + /* + * Authentication failure: take the link down + */ +#if 0 /* UNUSED */ + status = EXIT_PEER_AUTH_FAILED; +#endif /* UNUSED */ + pcb->err_code = PPPERR_AUTHFAIL; + lcp_close(pcb, "Authentication failed"); +} + +/* + * The peer has been successfully authenticated using `protocol'. + */ +void auth_peer_success(ppp_pcb *pcb, int protocol, int prot_flavor, const char *name, int namelen) { + int bit; +#ifndef HAVE_MULTILINK + LWIP_UNUSED_ARG(name); + LWIP_UNUSED_ARG(namelen); +#endif /* HAVE_MULTILINK */ + + switch (protocol) { +#if CHAP_SUPPORT + case PPP_CHAP: + bit = CHAP_PEER; + switch (prot_flavor) { + case CHAP_MD5: + bit |= CHAP_MD5_PEER; + break; +#if MSCHAP_SUPPORT + case CHAP_MICROSOFT: + bit |= CHAP_MS_PEER; + break; + case CHAP_MICROSOFT_V2: + bit |= CHAP_MS2_PEER; + break; +#endif /* MSCHAP_SUPPORT */ + default: + break; + } + break; +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + case PPP_PAP: + bit = PAP_PEER; + break; +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + case PPP_EAP: + bit = EAP_PEER; + break; +#endif /* EAP_SUPPORT */ + default: + ppp_warn(("auth_peer_success: unknown protocol %x", protocol)); + return; + } + +#ifdef HAVE_MULTILINK + /* + * Save the authenticated name of the peer for later. + */ + if (namelen > (int)sizeof(pcb->peer_authname) - 1) + namelen = (int)sizeof(pcb->peer_authname) - 1; + MEMCPY(pcb->peer_authname, name, namelen); + pcb->peer_authname[namelen] = 0; +#endif /* HAVE_MULTILINK */ +#if 0 /* UNUSED */ + script_setenv("PEERNAME", , 0); +#endif /* UNUSED */ + + /* Save the authentication method for later. */ + pcb->auth_done |= bit; + + /* + * If there is no more authentication still to be done, + * proceed to the network (or callback) phase. + */ + if ((pcb->auth_pending &= ~bit) == 0) + network_phase(pcb); +} +#endif /* PPP_SERVER */ + +/* + * We have failed to authenticate ourselves to the peer using `protocol'. + */ +void auth_withpeer_fail(ppp_pcb *pcb, int protocol) { + LWIP_UNUSED_ARG(protocol); + /* + * We've failed to authenticate ourselves to our peer. + * + * Some servers keep sending CHAP challenges, but there + * is no point in persisting without any way to get updated + * authentication secrets. + * + * He'll probably take the link down, and there's not much + * we can do except wait for that. + */ + pcb->err_code = PPPERR_AUTHFAIL; + lcp_close(pcb, "Failed to authenticate ourselves to peer"); +} + +/* + * We have successfully authenticated ourselves with the peer using `protocol'. + */ +void auth_withpeer_success(ppp_pcb *pcb, int protocol, int prot_flavor) { + int bit; + const char *prot = ""; + + switch (protocol) { +#if CHAP_SUPPORT + case PPP_CHAP: + bit = CHAP_WITHPEER; + prot = "CHAP"; + switch (prot_flavor) { + case CHAP_MD5: + bit |= CHAP_MD5_WITHPEER; + break; +#if MSCHAP_SUPPORT + case CHAP_MICROSOFT: + bit |= CHAP_MS_WITHPEER; + break; + case CHAP_MICROSOFT_V2: + bit |= CHAP_MS2_WITHPEER; + break; +#endif /* MSCHAP_SUPPORT */ + default: + break; + } + break; +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + case PPP_PAP: + bit = PAP_WITHPEER; + prot = "PAP"; + break; +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + case PPP_EAP: + bit = EAP_WITHPEER; + prot = "EAP"; + break; +#endif /* EAP_SUPPORT */ + default: + ppp_warn(("auth_withpeer_success: unknown protocol %x", protocol)); + bit = 0; + /* no break */ + } + + ppp_notice(("%s authentication succeeded", prot)); + + /* Save the authentication method for later. */ + pcb->auth_done |= bit; + + /* + * If there is no more authentication still being done, + * proceed to the network (or callback) phase. + */ + if ((pcb->auth_pending &= ~bit) == 0) + network_phase(pcb); +} +#endif /* PPP_AUTH_SUPPORT */ + + +/* + * np_up - a network protocol has come up. + */ +void np_up(ppp_pcb *pcb, int proto) { +#if PPP_IDLETIMELIMIT + int tlim; +#endif /* PPP_IDLETIMELIMIT */ + LWIP_UNUSED_ARG(proto); + + if (pcb->num_np_up == 0) { + /* + * At this point we consider that the link has come up successfully. + */ + new_phase(pcb, PPP_PHASE_RUNNING); + +#if PPP_IDLETIMELIMIT +#if 0 /* UNUSED */ + if (idle_time_hook != 0) + tlim = (*idle_time_hook)(NULL); + else +#endif /* UNUSED */ + tlim = pcb->settings.idle_time_limit; + if (tlim > 0) + TIMEOUT(check_idle, (void*)pcb, tlim); +#endif /* PPP_IDLETIMELIMIT */ + +#if PPP_MAXCONNECT + /* + * Set a timeout to close the connection once the maximum + * connect time has expired. + */ + if (pcb->settings.maxconnect > 0) + TIMEOUT(connect_time_expired, (void*)pcb, pcb->settings.maxconnect); +#endif /* PPP_MAXCONNECT */ + +#ifdef MAXOCTETS + if (maxoctets > 0) + TIMEOUT(check_maxoctets, NULL, maxoctets_timeout); +#endif + +#if 0 /* Unused */ + /* + * Detach now, if the updetach option was given. + */ + if (updetach && !nodetach) + detach(); +#endif /* Unused */ + } + ++pcb->num_np_up; +} + +/* + * np_down - a network protocol has gone down. + */ +void np_down(ppp_pcb *pcb, int proto) { + LWIP_UNUSED_ARG(proto); + if (--pcb->num_np_up == 0) { +#if PPP_IDLETIMELIMIT + UNTIMEOUT(check_idle, (void*)pcb); +#endif /* PPP_IDLETIMELIMIT */ +#if PPP_MAXCONNECT + UNTIMEOUT(connect_time_expired, NULL); +#endif /* PPP_MAXCONNECT */ +#ifdef MAXOCTETS + UNTIMEOUT(check_maxoctets, NULL); +#endif + new_phase(pcb, PPP_PHASE_NETWORK); + } +} + +/* + * np_finished - a network protocol has finished using the link. + */ +void np_finished(ppp_pcb *pcb, int proto) { + LWIP_UNUSED_ARG(proto); + if (--pcb->num_np_open <= 0) { + /* no further use for the link: shut up shop. */ + lcp_close(pcb, "No network protocols running"); + } +} + +#ifdef MAXOCTETS +static void +check_maxoctets(arg) + void *arg; +{ +#if PPP_STATS_SUPPORT + unsigned int used; + + update_link_stats(ifunit); + link_stats_valid=0; + + switch(maxoctets_dir) { + case PPP_OCTETS_DIRECTION_IN: + used = link_stats.bytes_in; + break; + case PPP_OCTETS_DIRECTION_OUT: + used = link_stats.bytes_out; + break; + case PPP_OCTETS_DIRECTION_MAXOVERAL: + case PPP_OCTETS_DIRECTION_MAXSESSION: + used = (link_stats.bytes_in > link_stats.bytes_out) ? link_stats.bytes_in : link_stats.bytes_out; + break; + default: + used = link_stats.bytes_in+link_stats.bytes_out; + break; + } + if (used > maxoctets) { + ppp_notice(("Traffic limit reached. Limit: %u Used: %u", maxoctets, used)); + status = EXIT_TRAFFIC_LIMIT; + lcp_close(pcb, "Traffic limit"); +#if 0 /* UNUSED */ + need_holdoff = 0; +#endif /* UNUSED */ + } else { + TIMEOUT(check_maxoctets, NULL, maxoctets_timeout); + } +#endif /* PPP_STATS_SUPPORT */ +} +#endif /* MAXOCTETS */ + +#if PPP_IDLETIMELIMIT +/* + * check_idle - check whether the link has been idle for long + * enough that we can shut it down. + */ +static void check_idle(void *arg) { + ppp_pcb *pcb = (ppp_pcb*)arg; + struct ppp_idle idle; + time_t itime; + int tlim; + + if (!get_idle_time(pcb, &idle)) + return; +#if 0 /* UNUSED */ + if (idle_time_hook != 0) { + tlim = idle_time_hook(&idle); + } else { +#endif /* UNUSED */ + itime = LWIP_MIN(idle.xmit_idle, idle.recv_idle); + tlim = pcb->settings.idle_time_limit - itime; +#if 0 /* UNUSED */ + } +#endif /* UNUSED */ + if (tlim <= 0) { + /* link is idle: shut it down. */ + ppp_notice(("Terminating connection due to lack of activity.")); + pcb->err_code = PPPERR_IDLETIMEOUT; + lcp_close(pcb, "Link inactive"); +#if 0 /* UNUSED */ + need_holdoff = 0; +#endif /* UNUSED */ + } else { + TIMEOUT(check_idle, (void*)pcb, tlim); + } +} +#endif /* PPP_IDLETIMELIMIT */ + +#if PPP_MAXCONNECT +/* + * connect_time_expired - log a message and close the connection. + */ +static void connect_time_expired(void *arg) { + ppp_pcb *pcb = (ppp_pcb*)arg; + ppp_info(("Connect time expired")); + pcb->err_code = PPPERR_CONNECTTIME; + lcp_close(pcb, "Connect time expired"); /* Close connection */ +} +#endif /* PPP_MAXCONNECT */ + +#if PPP_OPTIONS +/* + * auth_check_options - called to check authentication options. + */ +void +auth_check_options() +{ + lcp_options *wo = &lcp_wantoptions[0]; + int can_auth; + int lacks_ip; + + /* Default our_name to hostname, and user to our_name */ + if (our_name[0] == 0 || usehostname) + strlcpy(our_name, hostname, sizeof(our_name)); + /* If a blank username was explicitly given as an option, trust + the user and don't use our_name */ + if (ppp_settings.user[0] == 0 && !explicit_user) + strlcpy(ppp_settings.user, our_name, sizeof(ppp_settings.user)); + + /* + * If we have a default route, require the peer to authenticate + * unless the noauth option was given or the real user is root. + */ + if (!auth_required && !allow_any_ip && have_route_to(0) && !privileged) { + auth_required = 1; + default_auth = 1; + } + +#if CHAP_SUPPORT + /* If we selected any CHAP flavors, we should probably negotiate it. :-) */ + if (wo->chap_mdtype) + wo->neg_chap = 1; +#endif /* CHAP_SUPPORT */ + + /* If authentication is required, ask peer for CHAP, PAP, or EAP. */ + if (auth_required) { + allow_any_ip = 0; + if (1 +#if CHAP_SUPPORT + && !wo->neg_chap +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + && !wo->neg_upap +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + && !wo->neg_eap +#endif /* EAP_SUPPORT */ + ) { +#if CHAP_SUPPORT + wo->neg_chap = CHAP_MDTYPE_SUPPORTED != MDTYPE_NONE; + wo->chap_mdtype = CHAP_MDTYPE_SUPPORTED; +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + wo->neg_upap = 1; +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + wo->neg_eap = 1; +#endif /* EAP_SUPPORT */ + } + } else { +#if CHAP_SUPPORT + wo->neg_chap = 0; + wo->chap_mdtype = MDTYPE_NONE; +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + wo->neg_upap = 0; +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + wo->neg_eap = 0; +#endif /* EAP_SUPPORT */ + } + + /* + * Check whether we have appropriate secrets to use + * to authenticate the peer. Note that EAP can authenticate by way + * of a CHAP-like exchanges as well as SRP. + */ + lacks_ip = 0; +#if PAP_SUPPORT + can_auth = wo->neg_upap && (uselogin || have_pap_secret(&lacks_ip)); +#else + can_auth = 0; +#endif /* PAP_SUPPORT */ + if (!can_auth && (0 +#if CHAP_SUPPORT + || wo->neg_chap +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + || wo->neg_eap +#endif /* EAP_SUPPORT */ + )) { +#if CHAP_SUPPORT + can_auth = have_chap_secret((explicit_remote? remote_name: NULL), + our_name, 1, &lacks_ip); +#else + can_auth = 0; +#endif + } + if (!can_auth +#if EAP_SUPPORT + && wo->neg_eap +#endif /* EAP_SUPPORT */ + ) { + can_auth = have_srp_secret((explicit_remote? remote_name: NULL), + our_name, 1, &lacks_ip); + } + + if (auth_required && !can_auth && noauth_addrs == NULL) { + if (default_auth) { + option_error( +"By default the remote system is required to authenticate itself"); + option_error( +"(because this system has a default route to the internet)"); + } else if (explicit_remote) + option_error( +"The remote system (%s) is required to authenticate itself", + remote_name); + else + option_error( +"The remote system is required to authenticate itself"); + option_error( +"but I couldn't find any suitable secret (password) for it to use to do so."); + if (lacks_ip) + option_error( +"(None of the available passwords would let it use an IP address.)"); + + exit(1); + } + + /* + * Early check for remote number authorization. + */ + if (!auth_number()) { + ppp_warn(("calling number %q is not authorized", remote_number)); + exit(EXIT_CNID_AUTH_FAILED); + } +} +#endif /* PPP_OPTIONS */ + +#if 0 /* UNUSED */ +/* + * auth_reset - called when LCP is starting negotiations to recheck + * authentication options, i.e. whether we have appropriate secrets + * to use for authenticating ourselves and/or the peer. + */ +void +auth_reset(unit) + int unit; +{ + lcp_options *go = &lcp_gotoptions[unit]; + lcp_options *ao = &lcp_allowoptions[unit]; + int hadchap; + + hadchap = -1; + ao->neg_upap = !refuse_pap && (passwd[0] != 0 || get_pap_passwd(NULL)); + ao->neg_chap = (!refuse_chap || !refuse_mschap || !refuse_mschap_v2) + && (passwd[0] != 0 || + (hadchap = have_chap_secret(user, (explicit_remote? remote_name: + NULL), 0, NULL))); + ao->neg_eap = !refuse_eap && ( + passwd[0] != 0 || + (hadchap == 1 || (hadchap == -1 && have_chap_secret(user, + (explicit_remote? remote_name: NULL), 0, NULL))) || + have_srp_secret(user, (explicit_remote? remote_name: NULL), 0, NULL)); + + hadchap = -1; + if (go->neg_upap && !uselogin && !have_pap_secret(NULL)) + go->neg_upap = 0; + if (go->neg_chap) { + if (!(hadchap = have_chap_secret((explicit_remote? remote_name: NULL), + our_name, 1, NULL))) + go->neg_chap = 0; + } + if (go->neg_eap && + (hadchap == 0 || (hadchap == -1 && + !have_chap_secret((explicit_remote? remote_name: NULL), our_name, + 1, NULL))) && + !have_srp_secret((explicit_remote? remote_name: NULL), our_name, 1, + NULL)) + go->neg_eap = 0; +} + +/* + * check_passwd - Check the user name and passwd against the PAP secrets + * file. If requested, also check against the system password database, + * and login the user if OK. + * + * returns: + * UPAP_AUTHNAK: Authentication failed. + * UPAP_AUTHACK: Authentication succeeded. + * In either case, msg points to an appropriate message. + */ +int +check_passwd(unit, auser, userlen, apasswd, passwdlen, msg) + int unit; + char *auser; + int userlen; + char *apasswd; + int passwdlen; + char **msg; +{ + return UPAP_AUTHNAK; + int ret; + char *filename; + FILE *f; + struct wordlist *addrs = NULL, *opts = NULL; + char passwd[256], user[256]; + char secret[MAXWORDLEN]; + static int attempts = 0; + + /* + * Make copies of apasswd and auser, then null-terminate them. + * If there are unprintable characters in the password, make + * them visible. + */ + slprintf(ppp_settings.passwd, sizeof(ppp_settings.passwd), "%.*v", passwdlen, apasswd); + slprintf(ppp_settings.user, sizeof(ppp_settings.user), "%.*v", userlen, auser); + *msg = ""; + + /* + * Check if a plugin wants to handle this. + */ + if (pap_auth_hook) { + ret = (*pap_auth_hook)(ppp_settings.user, ppp_settings.passwd, msg, &addrs, &opts); + if (ret >= 0) { + /* note: set_allowed_addrs() saves opts (but not addrs): + don't free it! */ + if (ret) + set_allowed_addrs(unit, addrs, opts); + else if (opts != 0) + free_wordlist(opts); + if (addrs != 0) + free_wordlist(addrs); + BZERO(ppp_settings.passwd, sizeof(ppp_settings.passwd)); + return ret? UPAP_AUTHACK: UPAP_AUTHNAK; + } + } + + /* + * Open the file of pap secrets and scan for a suitable secret + * for authenticating this user. + */ + filename = _PATH_UPAPFILE; + addrs = opts = NULL; + ret = UPAP_AUTHNAK; + f = fopen(filename, "r"); + if (f == NULL) { + ppp_error(("Can't open PAP password file %s: %m", filename)); + + } else { + check_access(f, filename); + if (scan_authfile(f, ppp_settings.user, our_name, secret, &addrs, &opts, filename, 0) < 0) { + ppp_warn(("no PAP secret found for %s", user)); + } else { + /* + * If the secret is "@login", it means to check + * the password against the login database. + */ + int login_secret = strcmp(secret, "@login") == 0; + ret = UPAP_AUTHACK; + if (uselogin || login_secret) { + /* login option or secret is @login */ + if (session_full(ppp_settings.user, ppp_settings.passwd, devnam, msg) == 0) { + ret = UPAP_AUTHNAK; + } + } else if (session_mgmt) { + if (session_check(ppp_settings.user, NULL, devnam, NULL) == 0) { + ppp_warn(("Peer %q failed PAP Session verification", user)); + ret = UPAP_AUTHNAK; + } + } + if (secret[0] != 0 && !login_secret) { + /* password given in pap-secrets - must match */ + if ((cryptpap || strcmp(ppp_settings.passwd, secret) != 0) + && strcmp(crypt(ppp_settings.passwd, secret), secret) != 0) + ret = UPAP_AUTHNAK; + } + } + fclose(f); + } + + if (ret == UPAP_AUTHNAK) { + if (**msg == 0) + *msg = "Login incorrect"; + /* + * XXX can we ever get here more than once?? + * Frustrate passwd stealer programs. + * Allow 10 tries, but start backing off after 3 (stolen from login). + * On 10'th, drop the connection. + */ + if (attempts++ >= 10) { + ppp_warn(("%d LOGIN FAILURES ON %s, %s", attempts, devnam, user)); + lcp_close(pcb, "login failed"); + } + if (attempts > 3) + sleep((u_int) (attempts - 3) * 5); + if (opts != NULL) + free_wordlist(opts); + + } else { + attempts = 0; /* Reset count */ + if (**msg == 0) + *msg = "Login ok"; + set_allowed_addrs(unit, addrs, opts); + } + + if (addrs != NULL) + free_wordlist(addrs); + BZERO(ppp_settings.passwd, sizeof(ppp_settings.passwd)); + BZERO(secret, sizeof(secret)); + + return ret; +} + +/* + * null_login - Check if a username of "" and a password of "" are + * acceptable, and iff so, set the list of acceptable IP addresses + * and return 1. + */ +static int +null_login(unit) + int unit; +{ + char *filename; + FILE *f; + int i, ret; + struct wordlist *addrs, *opts; + char secret[MAXWORDLEN]; + + /* + * Check if a plugin wants to handle this. + */ + ret = -1; + if (null_auth_hook) + ret = (*null_auth_hook)(&addrs, &opts); + + /* + * Open the file of pap secrets and scan for a suitable secret. + */ + if (ret <= 0) { + filename = _PATH_UPAPFILE; + addrs = NULL; + f = fopen(filename, "r"); + if (f == NULL) + return 0; + check_access(f, filename); + + i = scan_authfile(f, "", our_name, secret, &addrs, &opts, filename, 0); + ret = i >= 0 && secret[0] == 0; + BZERO(secret, sizeof(secret)); + fclose(f); + } + + if (ret) + set_allowed_addrs(unit, addrs, opts); + else if (opts != 0) + free_wordlist(opts); + if (addrs != 0) + free_wordlist(addrs); + + return ret; +} + +/* + * get_pap_passwd - get a password for authenticating ourselves with + * our peer using PAP. Returns 1 on success, 0 if no suitable password + * could be found. + * Assumes passwd points to MAXSECRETLEN bytes of space (if non-null). + */ +static int +get_pap_passwd(passwd) + char *passwd; +{ + char *filename; + FILE *f; + int ret; + char secret[MAXWORDLEN]; + + /* + * Check whether a plugin wants to supply this. + */ + if (pap_passwd_hook) { + ret = (*pap_passwd_hook)(ppp_settings,user, ppp_settings.passwd); + if (ret >= 0) + return ret; + } + + filename = _PATH_UPAPFILE; + f = fopen(filename, "r"); + if (f == NULL) + return 0; + check_access(f, filename); + ret = scan_authfile(f, user, + (remote_name[0]? remote_name: NULL), + secret, NULL, NULL, filename, 0); + fclose(f); + if (ret < 0) + return 0; + if (passwd != NULL) + strlcpy(passwd, secret, MAXSECRETLEN); + BZERO(secret, sizeof(secret)); + return 1; +} + +/* + * have_pap_secret - check whether we have a PAP file with any + * secrets that we could possibly use for authenticating the peer. + */ +static int +have_pap_secret(lacks_ipp) + int *lacks_ipp; +{ + FILE *f; + int ret; + char *filename; + struct wordlist *addrs; + + /* let the plugin decide, if there is one */ + if (pap_check_hook) { + ret = (*pap_check_hook)(); + if (ret >= 0) + return ret; + } + + filename = _PATH_UPAPFILE; + f = fopen(filename, "r"); + if (f == NULL) + return 0; + + ret = scan_authfile(f, (explicit_remote? remote_name: NULL), our_name, + NULL, &addrs, NULL, filename, 0); + fclose(f); + if (ret >= 0 && !some_ip_ok(addrs)) { + if (lacks_ipp != 0) + *lacks_ipp = 1; + ret = -1; + } + if (addrs != 0) + free_wordlist(addrs); + + return ret >= 0; +} + +/* + * have_chap_secret - check whether we have a CHAP file with a + * secret that we could possibly use for authenticating `client' + * on `server'. Either can be the null string, meaning we don't + * know the identity yet. + */ +static int +have_chap_secret(client, server, need_ip, lacks_ipp) + char *client; + char *server; + int need_ip; + int *lacks_ipp; +{ + FILE *f; + int ret; + char *filename; + struct wordlist *addrs; + + if (chap_check_hook) { + ret = (*chap_check_hook)(); + if (ret >= 0) { + return ret; + } + } + + filename = _PATH_CHAPFILE; + f = fopen(filename, "r"); + if (f == NULL) + return 0; + + if (client != NULL && client[0] == 0) + client = NULL; + else if (server != NULL && server[0] == 0) + server = NULL; + + ret = scan_authfile(f, client, server, NULL, &addrs, NULL, filename, 0); + fclose(f); + if (ret >= 0 && need_ip && !some_ip_ok(addrs)) { + if (lacks_ipp != 0) + *lacks_ipp = 1; + ret = -1; + } + if (addrs != 0) + free_wordlist(addrs); + + return ret >= 0; +} + +/* + * have_srp_secret - check whether we have a SRP file with a + * secret that we could possibly use for authenticating `client' + * on `server'. Either can be the null string, meaning we don't + * know the identity yet. + */ +static int +have_srp_secret(client, server, need_ip, lacks_ipp) + char *client; + char *server; + int need_ip; + int *lacks_ipp; +{ + FILE *f; + int ret; + char *filename; + struct wordlist *addrs; + + filename = _PATH_SRPFILE; + f = fopen(filename, "r"); + if (f == NULL) + return 0; + + if (client != NULL && client[0] == 0) + client = NULL; + else if (server != NULL && server[0] == 0) + server = NULL; + + ret = scan_authfile(f, client, server, NULL, &addrs, NULL, filename, 0); + fclose(f); + if (ret >= 0 && need_ip && !some_ip_ok(addrs)) { + if (lacks_ipp != 0) + *lacks_ipp = 1; + ret = -1; + } + if (addrs != 0) + free_wordlist(addrs); + + return ret >= 0; +} +#endif /* UNUSED */ + +#if PPP_AUTH_SUPPORT +/* + * get_secret - open the CHAP secret file and return the secret + * for authenticating the given client on the given server. + * (We could be either client or server). + */ +int get_secret(ppp_pcb *pcb, const char *client, const char *server, char *secret, int *secret_len, int am_server) { + int len; + LWIP_UNUSED_ARG(server); + LWIP_UNUSED_ARG(am_server); + + if (!client || !client[0] || !pcb->settings.user || !pcb->settings.passwd || strcmp(client, pcb->settings.user)) { + return 0; + } + + len = (int)strlen(pcb->settings.passwd); + if (len > MAXSECRETLEN) { + ppp_error(("Secret for %s on %s is too long", client, server)); + len = MAXSECRETLEN; + } + + MEMCPY(secret, pcb->settings.passwd, len); + *secret_len = len; + return 1; + +#if 0 /* UNUSED */ + FILE *f; + int ret, len; + char *filename; + struct wordlist *addrs, *opts; + char secbuf[MAXWORDLEN]; + struct wordlist *addrs; + addrs = NULL; + + if (!am_server && ppp_settings.passwd[0] != 0) { + strlcpy(secbuf, ppp_settings.passwd, sizeof(secbuf)); + } else if (!am_server && chap_passwd_hook) { + if ( (*chap_passwd_hook)(client, secbuf) < 0) { + ppp_error(("Unable to obtain CHAP password for %s on %s from plugin", + client, server)); + return 0; + } + } else { + filename = _PATH_CHAPFILE; + addrs = NULL; + secbuf[0] = 0; + + f = fopen(filename, "r"); + if (f == NULL) { + ppp_error(("Can't open chap secret file %s: %m", filename)); + return 0; + } + check_access(f, filename); + + ret = scan_authfile(f, client, server, secbuf, &addrs, &opts, filename, 0); + fclose(f); + if (ret < 0) + return 0; + + if (am_server) + set_allowed_addrs(unit, addrs, opts); + else if (opts != 0) + free_wordlist(opts); + if (addrs != 0) + free_wordlist(addrs); + } + + len = strlen(secbuf); + if (len > MAXSECRETLEN) { + ppp_error(("Secret for %s on %s is too long", client, server)); + len = MAXSECRETLEN; + } + MEMCPY(secret, secbuf, len); + BZERO(secbuf, sizeof(secbuf)); + *secret_len = len; + + return 1; +#endif /* UNUSED */ +} +#endif /* PPP_AUTH_SUPPORT */ + + +#if 0 /* UNUSED */ +/* + * get_srp_secret - open the SRP secret file and return the secret + * for authenticating the given client on the given server. + * (We could be either client or server). + */ +int +get_srp_secret(unit, client, server, secret, am_server) + int unit; + char *client; + char *server; + char *secret; + int am_server; +{ + FILE *fp; + int ret; + char *filename; + struct wordlist *addrs, *opts; + + if (!am_server && ppp_settings.passwd[0] != '\0') { + strlcpy(secret, ppp_settings.passwd, MAXWORDLEN); + } else { + filename = _PATH_SRPFILE; + addrs = NULL; + + fp = fopen(filename, "r"); + if (fp == NULL) { + ppp_error(("Can't open srp secret file %s: %m", filename)); + return 0; + } + check_access(fp, filename); + + secret[0] = '\0'; + ret = scan_authfile(fp, client, server, secret, &addrs, &opts, + filename, am_server); + fclose(fp); + if (ret < 0) + return 0; + + if (am_server) + set_allowed_addrs(unit, addrs, opts); + else if (opts != NULL) + free_wordlist(opts); + if (addrs != NULL) + free_wordlist(addrs); + } + + return 1; +} + +/* + * set_allowed_addrs() - set the list of allowed addresses. + * Also looks for `--' indicating options to apply for this peer + * and leaves the following words in extra_options. + */ +static void +set_allowed_addrs(unit, addrs, opts) + int unit; + struct wordlist *addrs; + struct wordlist *opts; +{ + int n; + struct wordlist *ap, **plink; + struct permitted_ip *ip; + char *ptr_word, *ptr_mask; + struct hostent *hp; + struct netent *np; + u32_t a, mask, ah, offset; + struct ipcp_options *wo = &ipcp_wantoptions[unit]; + u32_t suggested_ip = 0; + + if (addresses[unit] != NULL) + free(addresses[unit]); + addresses[unit] = NULL; + if (extra_options != NULL) + free_wordlist(extra_options); + extra_options = opts; + + /* + * Count the number of IP addresses given. + */ + n = wordlist_count(addrs) + wordlist_count(noauth_addrs); + if (n == 0) + return; + ip = (struct permitted_ip *) malloc((n + 1) * sizeof(struct permitted_ip)); + if (ip == 0) + return; + + /* temporarily append the noauth_addrs list to addrs */ + for (plink = &addrs; *plink != NULL; plink = &(*plink)->next) + ; + *plink = noauth_addrs; + + n = 0; + for (ap = addrs; ap != NULL; ap = ap->next) { + /* "-" means no addresses authorized, "*" means any address allowed */ + ptr_word = ap->word; + if (strcmp(ptr_word, "-") == 0) + break; + if (strcmp(ptr_word, "*") == 0) { + ip[n].permit = 1; + ip[n].base = ip[n].mask = 0; + ++n; + break; + } + + ip[n].permit = 1; + if (*ptr_word == '!') { + ip[n].permit = 0; + ++ptr_word; + } + + mask = ~ (u32_t) 0; + offset = 0; + ptr_mask = strchr (ptr_word, '/'); + if (ptr_mask != NULL) { + int bit_count; + char *endp; + + bit_count = (int) strtol (ptr_mask+1, &endp, 10); + if (bit_count <= 0 || bit_count > 32) { + ppp_warn(("invalid address length %v in auth. address list", + ptr_mask+1)); + continue; + } + bit_count = 32 - bit_count; /* # bits in host part */ + if (*endp == '+') { + offset = ifunit + 1; + ++endp; + } + if (*endp != 0) { + ppp_warn(("invalid address length syntax: %v", ptr_mask+1)); + continue; + } + *ptr_mask = '\0'; + mask <<= bit_count; + } + + hp = gethostbyname(ptr_word); + if (hp != NULL && hp->h_addrtype == AF_INET) { + a = *(u32_t *)hp->h_addr; + } else { + np = getnetbyname (ptr_word); + if (np != NULL && np->n_addrtype == AF_INET) { + a = lwip_htonl ((u32_t)np->n_net); + if (ptr_mask == NULL) { + /* calculate appropriate mask for net */ + ah = lwip_ntohl(a); + if (IN_CLASSA(ah)) + mask = IN_CLASSA_NET; + else if (IN_CLASSB(ah)) + mask = IN_CLASSB_NET; + else if (IN_CLASSC(ah)) + mask = IN_CLASSC_NET; + } + } else { + a = inet_addr (ptr_word); + } + } + + if (ptr_mask != NULL) + *ptr_mask = '/'; + + if (a == (u32_t)-1L) { + ppp_warn(("unknown host %s in auth. address list", ap->word)); + continue; + } + if (offset != 0) { + if (offset >= ~mask) { + ppp_warn(("interface unit %d too large for subnet %v", + ifunit, ptr_word)); + continue; + } + a = lwip_htonl((lwip_ntohl(a) & mask) + offset); + mask = ~(u32_t)0; + } + ip[n].mask = lwip_htonl(mask); + ip[n].base = a & ip[n].mask; + ++n; + if (~mask == 0 && suggested_ip == 0) + suggested_ip = a; + } + *plink = NULL; + + ip[n].permit = 0; /* make the last entry forbid all addresses */ + ip[n].base = 0; /* to terminate the list */ + ip[n].mask = 0; + + addresses[unit] = ip; + + /* + * If the address given for the peer isn't authorized, or if + * the user hasn't given one, AND there is an authorized address + * which is a single host, then use that if we find one. + */ + if (suggested_ip != 0 + && (wo->hisaddr == 0 || !auth_ip_addr(unit, wo->hisaddr))) { + wo->hisaddr = suggested_ip; + /* + * Do we insist on this address? No, if there are other + * addresses authorized than the suggested one. + */ + if (n > 1) + wo->accept_remote = 1; + } +} + +/* + * auth_ip_addr - check whether the peer is authorized to use + * a given IP address. Returns 1 if authorized, 0 otherwise. + */ +int +auth_ip_addr(unit, addr) + int unit; + u32_t addr; +{ + int ok; + + /* don't allow loopback or multicast address */ + if (bad_ip_adrs(addr)) + return 0; + + if (allowed_address_hook) { + ok = allowed_address_hook(addr); + if (ok >= 0) return ok; + } + + if (addresses[unit] != NULL) { + ok = ip_addr_check(addr, addresses[unit]); + if (ok >= 0) + return ok; + } + + if (auth_required) + return 0; /* no addresses authorized */ + return allow_any_ip || privileged || !have_route_to(addr); +} + +static int +ip_addr_check(addr, addrs) + u32_t addr; + struct permitted_ip *addrs; +{ + for (; ; ++addrs) + if ((addr & addrs->mask) == addrs->base) + return addrs->permit; +} + +/* + * bad_ip_adrs - return 1 if the IP address is one we don't want + * to use, such as an address in the loopback net or a multicast address. + * addr is in network byte order. + */ +int +bad_ip_adrs(addr) + u32_t addr; +{ + addr = lwip_ntohl(addr); + return (addr >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET + || IN_MULTICAST(addr) || IN_BADCLASS(addr); +} + +/* + * some_ip_ok - check a wordlist to see if it authorizes any + * IP address(es). + */ +static int +some_ip_ok(addrs) + struct wordlist *addrs; +{ + for (; addrs != 0; addrs = addrs->next) { + if (addrs->word[0] == '-') + break; + if (addrs->word[0] != '!') + return 1; /* some IP address is allowed */ + } + return 0; +} + +/* + * auth_number - check whether the remote number is allowed to connect. + * Returns 1 if authorized, 0 otherwise. + */ +int +auth_number() +{ + struct wordlist *wp = permitted_numbers; + int l; + + /* Allow all if no authorization list. */ + if (!wp) + return 1; + + /* Allow if we have a match in the authorization list. */ + while (wp) { + /* trailing '*' wildcard */ + l = strlen(wp->word); + if ((wp->word)[l - 1] == '*') + l--; + if (!strncasecmp(wp->word, remote_number, l)) + return 1; + wp = wp->next; + } + + return 0; +} + +/* + * check_access - complain if a secret file has too-liberal permissions. + */ +static void +check_access(f, filename) + FILE *f; + char *filename; +{ + struct stat sbuf; + + if (fstat(fileno(f), &sbuf) < 0) { + ppp_warn(("cannot stat secret file %s: %m", filename)); + } else if ((sbuf.st_mode & (S_IRWXG | S_IRWXO)) != 0) { + ppp_warn(("Warning - secret file %s has world and/or group access", + filename)); + } +} + +/* + * scan_authfile - Scan an authorization file for a secret suitable + * for authenticating `client' on `server'. The return value is -1 + * if no secret is found, otherwise >= 0. The return value has + * NONWILD_CLIENT set if the secret didn't have "*" for the client, and + * NONWILD_SERVER set if the secret didn't have "*" for the server. + * Any following words on the line up to a "--" (i.e. address authorization + * info) are placed in a wordlist and returned in *addrs. Any + * following words (extra options) are placed in a wordlist and + * returned in *opts. + * We assume secret is NULL or points to MAXWORDLEN bytes of space. + * Flags are non-zero if we need two colons in the secret in order to + * match. + */ +static int +scan_authfile(f, client, server, secret, addrs, opts, filename, flags) + FILE *f; + char *client; + char *server; + char *secret; + struct wordlist **addrs; + struct wordlist **opts; + char *filename; + int flags; +{ + int newline, xxx; + int got_flag, best_flag; + FILE *sf; + struct wordlist *ap, *addr_list, *alist, **app; + char word[MAXWORDLEN]; + char atfile[MAXWORDLEN]; + char lsecret[MAXWORDLEN]; + char *cp; + + if (addrs != NULL) + *addrs = NULL; + if (opts != NULL) + *opts = NULL; + addr_list = NULL; + if (!getword(f, word, &newline, filename)) + return -1; /* file is empty??? */ + newline = 1; + best_flag = -1; + for (;;) { + /* + * Skip until we find a word at the start of a line. + */ + while (!newline && getword(f, word, &newline, filename)) + ; + if (!newline) + break; /* got to end of file */ + + /* + * Got a client - check if it's a match or a wildcard. + */ + got_flag = 0; + if (client != NULL && strcmp(word, client) != 0 && !ISWILD(word)) { + newline = 0; + continue; + } + if (!ISWILD(word)) + got_flag = NONWILD_CLIENT; + + /* + * Now get a server and check if it matches. + */ + if (!getword(f, word, &newline, filename)) + break; + if (newline) + continue; + if (!ISWILD(word)) { + if (server != NULL && strcmp(word, server) != 0) + continue; + got_flag |= NONWILD_SERVER; + } + + /* + * Got some sort of a match - see if it's better than what + * we have already. + */ + if (got_flag <= best_flag) + continue; + + /* + * Get the secret. + */ + if (!getword(f, word, &newline, filename)) + break; + if (newline) + continue; + + /* + * SRP-SHA1 authenticator should never be reading secrets from + * a file. (Authenticatee may, though.) + */ + if (flags && ((cp = strchr(word, ':')) == NULL || + strchr(cp + 1, ':') == NULL)) + continue; + + if (secret != NULL) { + /* + * Special syntax: @/pathname means read secret from file. + */ + if (word[0] == '@' && word[1] == '/') { + strlcpy(atfile, word+1, sizeof(atfile)); + if ((sf = fopen(atfile, "r")) == NULL) { + ppp_warn(("can't open indirect secret file %s", atfile)); + continue; + } + check_access(sf, atfile); + if (!getword(sf, word, &xxx, atfile)) { + ppp_warn(("no secret in indirect secret file %s", atfile)); + fclose(sf); + continue; + } + fclose(sf); + } + strlcpy(lsecret, word, sizeof(lsecret)); + } + + /* + * Now read address authorization info and make a wordlist. + */ + app = &alist; + for (;;) { + if (!getword(f, word, &newline, filename) || newline) + break; + ap = (struct wordlist *) + malloc(sizeof(struct wordlist) + strlen(word) + 1); + if (ap == NULL) + novm("authorized addresses"); + ap->word = (char *) (ap + 1); + strcpy(ap->word, word); + *app = ap; + app = &ap->next; + } + *app = NULL; + + /* + * This is the best so far; remember it. + */ + best_flag = got_flag; + if (addr_list) + free_wordlist(addr_list); + addr_list = alist; + if (secret != NULL) + strlcpy(secret, lsecret, MAXWORDLEN); + + if (!newline) + break; + } + + /* scan for a -- word indicating the start of options */ + for (app = &addr_list; (ap = *app) != NULL; app = &ap->next) + if (strcmp(ap->word, "--") == 0) + break; + /* ap = start of options */ + if (ap != NULL) { + ap = ap->next; /* first option */ + free(*app); /* free the "--" word */ + *app = NULL; /* terminate addr list */ + } + if (opts != NULL) + *opts = ap; + else if (ap != NULL) + free_wordlist(ap); + if (addrs != NULL) + *addrs = addr_list; + else if (addr_list != NULL) + free_wordlist(addr_list); + + return best_flag; +} + +/* + * wordlist_count - return the number of items in a wordlist + */ +static int +wordlist_count(wp) + struct wordlist *wp; +{ + int n; + + for (n = 0; wp != NULL; wp = wp->next) + ++n; + return n; +} + +/* + * free_wordlist - release memory allocated for a wordlist. + */ +static void +free_wordlist(wp) + struct wordlist *wp; +{ + struct wordlist *next; + + while (wp != NULL) { + next = wp->next; + free(wp); + wp = next; + } +} +#endif /* UNUSED */ + +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/ccp.c b/middleware/lwip/src/netif/ppp/ccp.c new file mode 100644 index 0000000..6c2dadc --- /dev/null +++ b/middleware/lwip/src/netif/ppp/ccp.c @@ -0,0 +1,1740 @@ +/* + * ccp.c - PPP Compression Control Protocol. + * + * Copyright (c) 1994-2002 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && CCP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include +#include + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/fsm.h" +#include "netif/ppp/ccp.h" + +#if MPPE_SUPPORT +#include "netif/ppp/lcp.h" /* lcp_close(), lcp_fsm */ +#include "netif/ppp/mppe.h" /* mppe_init() */ +#endif /* MPPE_SUPPORT */ + +/* + * Unfortunately there is a bug in zlib which means that using a + * size of 8 (window size = 256) for Deflate compression will cause + * buffer overruns and kernel crashes in the deflate module. + * Until this is fixed we only accept sizes in the range 9 .. 15. + * Thanks to James Carlson for pointing this out. + */ +#define DEFLATE_MIN_WORKS 9 + +/* + * Command-line options. + */ +#if PPP_OPTIONS +static int setbsdcomp (char **); +static int setdeflate (char **); +static char bsd_value[8]; +static char deflate_value[8]; + +/* + * Option variables. + */ +#if MPPE_SUPPORT +bool refuse_mppe_stateful = 1; /* Allow stateful mode? */ +#endif /* MPPE_SUPPORT */ + +static option_t ccp_option_list[] = { + { "noccp", o_bool, &ccp_protent.enabled_flag, + "Disable CCP negotiation" }, + { "-ccp", o_bool, &ccp_protent.enabled_flag, + "Disable CCP negotiation", OPT_ALIAS }, + + { "bsdcomp", o_special, (void *)setbsdcomp, + "Request BSD-Compress packet compression", + OPT_PRIO | OPT_A2STRVAL | OPT_STATIC, bsd_value }, + { "nobsdcomp", o_bool, &ccp_wantoptions[0].bsd_compress, + "don't allow BSD-Compress", OPT_PRIOSUB | OPT_A2CLR, + &ccp_allowoptions[0].bsd_compress }, + { "-bsdcomp", o_bool, &ccp_wantoptions[0].bsd_compress, + "don't allow BSD-Compress", OPT_ALIAS | OPT_PRIOSUB | OPT_A2CLR, + &ccp_allowoptions[0].bsd_compress }, + + { "deflate", o_special, (void *)setdeflate, + "request Deflate compression", + OPT_PRIO | OPT_A2STRVAL | OPT_STATIC, deflate_value }, + { "nodeflate", o_bool, &ccp_wantoptions[0].deflate, + "don't allow Deflate compression", OPT_PRIOSUB | OPT_A2CLR, + &ccp_allowoptions[0].deflate }, + { "-deflate", o_bool, &ccp_wantoptions[0].deflate, + "don't allow Deflate compression", OPT_ALIAS | OPT_PRIOSUB | OPT_A2CLR, + &ccp_allowoptions[0].deflate }, + + { "nodeflatedraft", o_bool, &ccp_wantoptions[0].deflate_draft, + "don't use draft deflate #", OPT_A2COPY, + &ccp_allowoptions[0].deflate_draft }, + + { "predictor1", o_bool, &ccp_wantoptions[0].predictor_1, + "request Predictor-1", OPT_PRIO | 1 }, + { "nopredictor1", o_bool, &ccp_wantoptions[0].predictor_1, + "don't allow Predictor-1", OPT_PRIOSUB | OPT_A2CLR, + &ccp_allowoptions[0].predictor_1 }, + { "-predictor1", o_bool, &ccp_wantoptions[0].predictor_1, + "don't allow Predictor-1", OPT_ALIAS | OPT_PRIOSUB | OPT_A2CLR, + &ccp_allowoptions[0].predictor_1 }, + +#if MPPE_SUPPORT + /* MPPE options are symmetrical ... we only set wantoptions here */ + { "require-mppe", o_bool, &ccp_wantoptions[0].mppe, + "require MPPE encryption", + OPT_PRIO | MPPE_OPT_40 | MPPE_OPT_128 }, + { "+mppe", o_bool, &ccp_wantoptions[0].mppe, + "require MPPE encryption", + OPT_ALIAS | OPT_PRIO | MPPE_OPT_40 | MPPE_OPT_128 }, + { "nomppe", o_bool, &ccp_wantoptions[0].mppe, + "don't allow MPPE encryption", OPT_PRIO }, + { "-mppe", o_bool, &ccp_wantoptions[0].mppe, + "don't allow MPPE encryption", OPT_ALIAS | OPT_PRIO }, + + /* We use ccp_allowoptions[0].mppe as a junk var ... it is reset later */ + { "require-mppe-40", o_bool, &ccp_allowoptions[0].mppe, + "require MPPE 40-bit encryption", OPT_PRIO | OPT_A2OR | MPPE_OPT_40, + &ccp_wantoptions[0].mppe }, + { "+mppe-40", o_bool, &ccp_allowoptions[0].mppe, + "require MPPE 40-bit encryption", OPT_PRIO | OPT_A2OR | MPPE_OPT_40, + &ccp_wantoptions[0].mppe }, + { "nomppe-40", o_bool, &ccp_allowoptions[0].mppe, + "don't allow MPPE 40-bit encryption", + OPT_PRIOSUB | OPT_A2CLRB | MPPE_OPT_40, &ccp_wantoptions[0].mppe }, + { "-mppe-40", o_bool, &ccp_allowoptions[0].mppe, + "don't allow MPPE 40-bit encryption", + OPT_ALIAS | OPT_PRIOSUB | OPT_A2CLRB | MPPE_OPT_40, + &ccp_wantoptions[0].mppe }, + + { "require-mppe-128", o_bool, &ccp_allowoptions[0].mppe, + "require MPPE 128-bit encryption", OPT_PRIO | OPT_A2OR | MPPE_OPT_128, + &ccp_wantoptions[0].mppe }, + { "+mppe-128", o_bool, &ccp_allowoptions[0].mppe, + "require MPPE 128-bit encryption", + OPT_ALIAS | OPT_PRIO | OPT_A2OR | MPPE_OPT_128, + &ccp_wantoptions[0].mppe }, + { "nomppe-128", o_bool, &ccp_allowoptions[0].mppe, + "don't allow MPPE 128-bit encryption", + OPT_PRIOSUB | OPT_A2CLRB | MPPE_OPT_128, &ccp_wantoptions[0].mppe }, + { "-mppe-128", o_bool, &ccp_allowoptions[0].mppe, + "don't allow MPPE 128-bit encryption", + OPT_ALIAS | OPT_PRIOSUB | OPT_A2CLRB | MPPE_OPT_128, + &ccp_wantoptions[0].mppe }, + + /* strange one; we always request stateless, but will we allow stateful? */ + { "mppe-stateful", o_bool, &refuse_mppe_stateful, + "allow MPPE stateful mode", OPT_PRIO }, + { "nomppe-stateful", o_bool, &refuse_mppe_stateful, + "disallow MPPE stateful mode", OPT_PRIO | 1 }, +#endif /* MPPE_SUPPORT */ + + { NULL } +}; +#endif /* PPP_OPTIONS */ + +/* + * Protocol entry points from main code. + */ +static void ccp_init(ppp_pcb *pcb); +static void ccp_open(ppp_pcb *pcb); +static void ccp_close(ppp_pcb *pcb, const char *reason); +static void ccp_lowerup(ppp_pcb *pcb); +static void ccp_lowerdown(ppp_pcb *pcb); +static void ccp_input(ppp_pcb *pcb, u_char *pkt, int len); +static void ccp_protrej(ppp_pcb *pcb); +#if PRINTPKT_SUPPORT +static int ccp_printpkt(const u_char *p, int plen, void (*printer) (void *, const char *, ...), void *arg); +#endif /* PRINTPKT_SUPPORT */ +#if PPP_DATAINPUT +static void ccp_datainput(ppp_pcb *pcb, u_char *pkt, int len); +#endif /* PPP_DATAINPUT */ + +const struct protent ccp_protent = { + PPP_CCP, + ccp_init, + ccp_input, + ccp_protrej, + ccp_lowerup, + ccp_lowerdown, + ccp_open, + ccp_close, +#if PRINTPKT_SUPPORT + ccp_printpkt, +#endif /* PRINTPKT_SUPPORT */ +#if PPP_DATAINPUT + ccp_datainput, +#endif /* PPP_DATAINPUT */ +#if PRINTPKT_SUPPORT + "CCP", + "Compressed", +#endif /* PRINTPKT_SUPPORT */ +#if PPP_OPTIONS + ccp_option_list, + NULL, +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT + NULL, + NULL +#endif /* DEMAND_SUPPORT */ +}; + +/* + * Callbacks for fsm code. + */ +static void ccp_resetci (fsm *); +static int ccp_cilen (fsm *); +static void ccp_addci (fsm *, u_char *, int *); +static int ccp_ackci (fsm *, u_char *, int); +static int ccp_nakci (fsm *, u_char *, int, int); +static int ccp_rejci (fsm *, u_char *, int); +static int ccp_reqci (fsm *, u_char *, int *, int); +static void ccp_up (fsm *); +static void ccp_down (fsm *); +static int ccp_extcode (fsm *, int, int, u_char *, int); +static void ccp_rack_timeout (void *); +static const char *method_name (ccp_options *, ccp_options *); + +static const fsm_callbacks ccp_callbacks = { + ccp_resetci, + ccp_cilen, + ccp_addci, + ccp_ackci, + ccp_nakci, + ccp_rejci, + ccp_reqci, + ccp_up, + ccp_down, + NULL, + NULL, + NULL, + NULL, + ccp_extcode, + "CCP" +}; + +/* + * Do we want / did we get any compression? + */ +static int ccp_anycompress(ccp_options *opt) { + return (0 +#if DEFLATE_SUPPORT + || (opt)->deflate +#endif /* DEFLATE_SUPPORT */ +#if BSDCOMPRESS_SUPPORT + || (opt)->bsd_compress +#endif /* BSDCOMPRESS_SUPPORT */ +#if PREDICTOR_SUPPORT + || (opt)->predictor_1 || (opt)->predictor_2 +#endif /* PREDICTOR_SUPPORT */ +#if MPPE_SUPPORT + || (opt)->mppe +#endif /* MPPE_SUPPORT */ + ); +} + +/* + * Local state (mainly for handling reset-reqs and reset-acks). + */ +#define RACK_PENDING 1 /* waiting for reset-ack */ +#define RREQ_REPEAT 2 /* send another reset-req if no reset-ack */ + +#define RACKTIMEOUT 1 /* second */ + +#if PPP_OPTIONS +/* + * Option parsing + */ +static int +setbsdcomp(argv) + char **argv; +{ + int rbits, abits; + char *str, *endp; + + str = *argv; + abits = rbits = strtol(str, &endp, 0); + if (endp != str && *endp == ',') { + str = endp + 1; + abits = strtol(str, &endp, 0); + } + if (*endp != 0 || endp == str) { + option_error("invalid parameter '%s' for bsdcomp option", *argv); + return 0; + } + if ((rbits != 0 && (rbits < BSD_MIN_BITS || rbits > BSD_MAX_BITS)) + || (abits != 0 && (abits < BSD_MIN_BITS || abits > BSD_MAX_BITS))) { + option_error("bsdcomp option values must be 0 or %d .. %d", + BSD_MIN_BITS, BSD_MAX_BITS); + return 0; + } + if (rbits > 0) { + ccp_wantoptions[0].bsd_compress = 1; + ccp_wantoptions[0].bsd_bits = rbits; + } else + ccp_wantoptions[0].bsd_compress = 0; + if (abits > 0) { + ccp_allowoptions[0].bsd_compress = 1; + ccp_allowoptions[0].bsd_bits = abits; + } else + ccp_allowoptions[0].bsd_compress = 0; + ppp_slprintf(bsd_value, sizeof(bsd_value), + rbits == abits? "%d": "%d,%d", rbits, abits); + + return 1; +} + +static int +setdeflate(argv) + char **argv; +{ + int rbits, abits; + char *str, *endp; + + str = *argv; + abits = rbits = strtol(str, &endp, 0); + if (endp != str && *endp == ',') { + str = endp + 1; + abits = strtol(str, &endp, 0); + } + if (*endp != 0 || endp == str) { + option_error("invalid parameter '%s' for deflate option", *argv); + return 0; + } + if ((rbits != 0 && (rbits < DEFLATE_MIN_SIZE || rbits > DEFLATE_MAX_SIZE)) + || (abits != 0 && (abits < DEFLATE_MIN_SIZE + || abits > DEFLATE_MAX_SIZE))) { + option_error("deflate option values must be 0 or %d .. %d", + DEFLATE_MIN_SIZE, DEFLATE_MAX_SIZE); + return 0; + } + if (rbits == DEFLATE_MIN_SIZE || abits == DEFLATE_MIN_SIZE) { + if (rbits == DEFLATE_MIN_SIZE) + rbits = DEFLATE_MIN_WORKS; + if (abits == DEFLATE_MIN_SIZE) + abits = DEFLATE_MIN_WORKS; + warn("deflate option value of %d changed to %d to avoid zlib bug", + DEFLATE_MIN_SIZE, DEFLATE_MIN_WORKS); + } + if (rbits > 0) { + ccp_wantoptions[0].deflate = 1; + ccp_wantoptions[0].deflate_size = rbits; + } else + ccp_wantoptions[0].deflate = 0; + if (abits > 0) { + ccp_allowoptions[0].deflate = 1; + ccp_allowoptions[0].deflate_size = abits; + } else + ccp_allowoptions[0].deflate = 0; + ppp_slprintf(deflate_value, sizeof(deflate_value), + rbits == abits? "%d": "%d,%d", rbits, abits); + + return 1; +} +#endif /* PPP_OPTIONS */ + +/* + * ccp_init - initialize CCP. + */ +static void ccp_init(ppp_pcb *pcb) { + fsm *f = &pcb->ccp_fsm; + + f->pcb = pcb; + f->protocol = PPP_CCP; + f->callbacks = &ccp_callbacks; + fsm_init(f); + +#if 0 /* Not necessary, everything is cleared in ppp_new() */ + memset(wo, 0, sizeof(*wo)); + memset(go, 0, sizeof(*go)); + memset(ao, 0, sizeof(*ao)); + memset(ho, 0, sizeof(*ho)); +#endif /* 0 */ + +#if DEFLATE_SUPPORT + wo->deflate = 1; + wo->deflate_size = DEFLATE_MAX_SIZE; + wo->deflate_correct = 1; + wo->deflate_draft = 1; + ao->deflate = 1; + ao->deflate_size = DEFLATE_MAX_SIZE; + ao->deflate_correct = 1; + ao->deflate_draft = 1; +#endif /* DEFLATE_SUPPORT */ + +#if BSDCOMPRESS_SUPPORT + wo->bsd_compress = 1; + wo->bsd_bits = BSD_MAX_BITS; + ao->bsd_compress = 1; + ao->bsd_bits = BSD_MAX_BITS; +#endif /* BSDCOMPRESS_SUPPORT */ + +#if PREDICTOR_SUPPORT + ao->predictor_1 = 1; +#endif /* PREDICTOR_SUPPORT */ +} + +/* + * ccp_open - CCP is allowed to come up. + */ +static void ccp_open(ppp_pcb *pcb) { + fsm *f = &pcb->ccp_fsm; + ccp_options *go = &pcb->ccp_gotoptions; + + if (f->state != PPP_FSM_OPENED) + ccp_set(pcb, 1, 0, 0, 0); + + /* + * Find out which compressors the kernel supports before + * deciding whether to open in silent mode. + */ + ccp_resetci(f); + if (!ccp_anycompress(go)) + f->flags |= OPT_SILENT; + + fsm_open(f); +} + +/* + * ccp_close - Terminate CCP. + */ +static void ccp_close(ppp_pcb *pcb, const char *reason) { + fsm *f = &pcb->ccp_fsm; + ccp_set(pcb, 0, 0, 0, 0); + fsm_close(f, reason); +} + +/* + * ccp_lowerup - we may now transmit CCP packets. + */ +static void ccp_lowerup(ppp_pcb *pcb) { + fsm *f = &pcb->ccp_fsm; + fsm_lowerup(f); +} + +/* + * ccp_lowerdown - we may not transmit CCP packets. + */ +static void ccp_lowerdown(ppp_pcb *pcb) { + fsm *f = &pcb->ccp_fsm; + fsm_lowerdown(f); +} + +/* + * ccp_input - process a received CCP packet. + */ +static void ccp_input(ppp_pcb *pcb, u_char *p, int len) { + fsm *f = &pcb->ccp_fsm; + ccp_options *go = &pcb->ccp_gotoptions; + int oldstate; + + /* + * Check for a terminate-request so we can print a message. + */ + oldstate = f->state; + fsm_input(f, p, len); + if (oldstate == PPP_FSM_OPENED && p[0] == TERMREQ && f->state != PPP_FSM_OPENED) { + ppp_notice(("Compression disabled by peer.")); +#if MPPE_SUPPORT + if (go->mppe) { + ppp_error(("MPPE disabled, closing LCP")); + lcp_close(pcb, "MPPE disabled by peer"); + } +#endif /* MPPE_SUPPORT */ + } + + /* + * If we get a terminate-ack and we're not asking for compression, + * close CCP. + */ + if (oldstate == PPP_FSM_REQSENT && p[0] == TERMACK + && !ccp_anycompress(go)) + ccp_close(pcb, "No compression negotiated"); +} + +/* + * Handle a CCP-specific code. + */ +static int ccp_extcode(fsm *f, int code, int id, u_char *p, int len) { + ppp_pcb *pcb = f->pcb; + LWIP_UNUSED_ARG(p); + LWIP_UNUSED_ARG(len); + + switch (code) { + case CCP_RESETREQ: + if (f->state != PPP_FSM_OPENED) + break; + ccp_reset_comp(pcb); + /* send a reset-ack, which the transmitter will see and + reset its compression state. */ + fsm_sdata(f, CCP_RESETACK, id, NULL, 0); + break; + + case CCP_RESETACK: + if ((pcb->ccp_localstate & RACK_PENDING) && id == f->reqid) { + pcb->ccp_localstate &= ~(RACK_PENDING | RREQ_REPEAT); + UNTIMEOUT(ccp_rack_timeout, f); + ccp_reset_decomp(pcb); + } + break; + + default: + return 0; + } + + return 1; +} + +/* + * ccp_protrej - peer doesn't talk CCP. + */ +static void ccp_protrej(ppp_pcb *pcb) { + fsm *f = &pcb->ccp_fsm; +#if MPPE_SUPPORT + ccp_options *go = &pcb->ccp_gotoptions; +#endif /* MPPE_SUPPORT */ + + ccp_set(pcb, 0, 0, 0, 0); + fsm_lowerdown(f); + +#if MPPE_SUPPORT + if (go->mppe) { + ppp_error(("MPPE required but peer negotiation failed")); + lcp_close(pcb, "MPPE required but peer negotiation failed"); + } +#endif /* MPPE_SUPPORT */ + +} + +/* + * ccp_resetci - initialize at start of negotiation. + */ +static void ccp_resetci(fsm *f) { + ppp_pcb *pcb = f->pcb; + ccp_options *go = &pcb->ccp_gotoptions; + ccp_options *wo = &pcb->ccp_wantoptions; +#if MPPE_SUPPORT + ccp_options *ao = &pcb->ccp_allowoptions; +#endif /* MPPE_SUPPORT */ +#if DEFLATE_SUPPORT || BSDCOMPRESS_SUPPORT || PREDICTOR_SUPPORT + u_char opt_buf[CCP_MAX_OPTION_LENGTH]; +#endif /* DEFLATE_SUPPORT || BSDCOMPRESS_SUPPORT || PREDICTOR_SUPPORT */ +#if DEFLATE_SUPPORT || BSDCOMPRESS_SUPPORT + int res; +#endif /* DEFLATE_SUPPORT || BSDCOMPRESS_SUPPORT */ + +#if MPPE_SUPPORT + if (pcb->settings.require_mppe) { + wo->mppe = ao->mppe = + (pcb->settings.refuse_mppe_40 ? 0 : MPPE_OPT_40) + | (pcb->settings.refuse_mppe_128 ? 0 : MPPE_OPT_128); + } +#endif /* MPPE_SUPPORT */ + + *go = *wo; + pcb->ccp_all_rejected = 0; + +#if MPPE_SUPPORT + if (go->mppe) { + int auth_mschap_bits = pcb->auth_done; + int numbits; + + /* + * Start with a basic sanity check: mschap[v2] auth must be in + * exactly one direction. RFC 3079 says that the keys are + * 'derived from the credentials of the peer that initiated the call', + * however the PPP protocol doesn't have such a concept, and pppd + * cannot get this info externally. Instead we do the best we can. + * NB: If MPPE is required, all other compression opts are invalid. + * So, we return right away if we can't do it. + */ + + /* Leave only the mschap auth bits set */ + auth_mschap_bits &= (CHAP_MS_WITHPEER | CHAP_MS_PEER | + CHAP_MS2_WITHPEER | CHAP_MS2_PEER); + /* Count the mschap auths */ + auth_mschap_bits >>= CHAP_MS_SHIFT; + numbits = 0; + do { + numbits += auth_mschap_bits & 1; + auth_mschap_bits >>= 1; + } while (auth_mschap_bits); + if (numbits > 1) { + ppp_error(("MPPE required, but auth done in both directions.")); + lcp_close(pcb, "MPPE required but not available"); + return; + } + if (!numbits) { + ppp_error(("MPPE required, but MS-CHAP[v2] auth not performed.")); + lcp_close(pcb, "MPPE required but not available"); + return; + } + + /* A plugin (eg radius) may not have obtained key material. */ + if (!pcb->mppe_keys_set) { + ppp_error(("MPPE required, but keys are not available. " + "Possible plugin problem?")); + lcp_close(pcb, "MPPE required but not available"); + return; + } + + /* LM auth not supported for MPPE */ + if (pcb->auth_done & (CHAP_MS_WITHPEER | CHAP_MS_PEER)) { + /* This might be noise */ + if (go->mppe & MPPE_OPT_40) { + ppp_notice(("Disabling 40-bit MPPE; MS-CHAP LM not supported")); + go->mppe &= ~MPPE_OPT_40; + wo->mppe &= ~MPPE_OPT_40; + } + } + + /* Last check: can we actually negotiate something? */ + if (!(go->mppe & (MPPE_OPT_40 | MPPE_OPT_128))) { + /* Could be misconfig, could be 40-bit disabled above. */ + ppp_error(("MPPE required, but both 40-bit and 128-bit disabled.")); + lcp_close(pcb, "MPPE required but not available"); + return; + } + + /* sync options */ + ao->mppe = go->mppe; + /* MPPE is not compatible with other compression types */ +#if BSDCOMPRESS_SUPPORT + ao->bsd_compress = go->bsd_compress = 0; +#endif /* BSDCOMPRESS_SUPPORT */ +#if PREDICTOR_SUPPORT + ao->predictor_1 = go->predictor_1 = 0; + ao->predictor_2 = go->predictor_2 = 0; +#endif /* PREDICTOR_SUPPORT */ +#if DEFLATE_SUPPORT + ao->deflate = go->deflate = 0; +#endif /* DEFLATE_SUPPORT */ + } +#endif /* MPPE_SUPPORT */ + + /* + * Check whether the kernel knows about the various + * compression methods we might request. + */ +#if BSDCOMPRESS_SUPPORT + /* FIXME: we don't need to test if BSD compress is available + * if BSDCOMPRESS_SUPPORT is set, it is. + */ + if (go->bsd_compress) { + opt_buf[0] = CI_BSD_COMPRESS; + opt_buf[1] = CILEN_BSD_COMPRESS; + for (;;) { + if (go->bsd_bits < BSD_MIN_BITS) { + go->bsd_compress = 0; + break; + } + opt_buf[2] = BSD_MAKE_OPT(BSD_CURRENT_VERSION, go->bsd_bits); + res = ccp_test(pcb, opt_buf, CILEN_BSD_COMPRESS, 0); + if (res > 0) { + break; + } else if (res < 0) { + go->bsd_compress = 0; + break; + } + go->bsd_bits--; + } + } +#endif /* BSDCOMPRESS_SUPPORT */ +#if DEFLATE_SUPPORT + /* FIXME: we don't need to test if deflate is available + * if DEFLATE_SUPPORT is set, it is. + */ + if (go->deflate) { + if (go->deflate_correct) { + opt_buf[0] = CI_DEFLATE; + opt_buf[1] = CILEN_DEFLATE; + opt_buf[3] = DEFLATE_CHK_SEQUENCE; + for (;;) { + if (go->deflate_size < DEFLATE_MIN_WORKS) { + go->deflate_correct = 0; + break; + } + opt_buf[2] = DEFLATE_MAKE_OPT(go->deflate_size); + res = ccp_test(pcb, opt_buf, CILEN_DEFLATE, 0); + if (res > 0) { + break; + } else if (res < 0) { + go->deflate_correct = 0; + break; + } + go->deflate_size--; + } + } + if (go->deflate_draft) { + opt_buf[0] = CI_DEFLATE_DRAFT; + opt_buf[1] = CILEN_DEFLATE; + opt_buf[3] = DEFLATE_CHK_SEQUENCE; + for (;;) { + if (go->deflate_size < DEFLATE_MIN_WORKS) { + go->deflate_draft = 0; + break; + } + opt_buf[2] = DEFLATE_MAKE_OPT(go->deflate_size); + res = ccp_test(pcb, opt_buf, CILEN_DEFLATE, 0); + if (res > 0) { + break; + } else if (res < 0) { + go->deflate_draft = 0; + break; + } + go->deflate_size--; + } + } + if (!go->deflate_correct && !go->deflate_draft) + go->deflate = 0; + } +#endif /* DEFLATE_SUPPORT */ +#if PREDICTOR_SUPPORT + /* FIXME: we don't need to test if predictor is available, + * if PREDICTOR_SUPPORT is set, it is. + */ + if (go->predictor_1) { + opt_buf[0] = CI_PREDICTOR_1; + opt_buf[1] = CILEN_PREDICTOR_1; + if (ccp_test(pcb, opt_buf, CILEN_PREDICTOR_1, 0) <= 0) + go->predictor_1 = 0; + } + if (go->predictor_2) { + opt_buf[0] = CI_PREDICTOR_2; + opt_buf[1] = CILEN_PREDICTOR_2; + if (ccp_test(pcb, opt_buf, CILEN_PREDICTOR_2, 0) <= 0) + go->predictor_2 = 0; + } +#endif /* PREDICTOR_SUPPORT */ +} + +/* + * ccp_cilen - Return total length of our configuration info. + */ +static int ccp_cilen(fsm *f) { + ppp_pcb *pcb = f->pcb; + ccp_options *go = &pcb->ccp_gotoptions; + + return 0 +#if BSDCOMPRESS_SUPPORT + + (go->bsd_compress? CILEN_BSD_COMPRESS: 0) +#endif /* BSDCOMPRESS_SUPPORT */ +#if DEFLATE_SUPPORT + + (go->deflate && go->deflate_correct? CILEN_DEFLATE: 0) + + (go->deflate && go->deflate_draft? CILEN_DEFLATE: 0) +#endif /* DEFLATE_SUPPORT */ +#if PREDICTOR_SUPPORT + + (go->predictor_1? CILEN_PREDICTOR_1: 0) + + (go->predictor_2? CILEN_PREDICTOR_2: 0) +#endif /* PREDICTOR_SUPPORT */ +#if MPPE_SUPPORT + + (go->mppe? CILEN_MPPE: 0) +#endif /* MPPE_SUPPORT */ + ; +} + +/* + * ccp_addci - put our requests in a packet. + */ +static void ccp_addci(fsm *f, u_char *p, int *lenp) { + ppp_pcb *pcb = f->pcb; + ccp_options *go = &pcb->ccp_gotoptions; + u_char *p0 = p; + + /* + * Add the compression types that we can receive, in decreasing + * preference order. + */ +#if MPPE_SUPPORT + if (go->mppe) { + p[0] = CI_MPPE; + p[1] = CILEN_MPPE; + MPPE_OPTS_TO_CI(go->mppe, &p[2]); + mppe_init(pcb, &pcb->mppe_decomp, go->mppe); + p += CILEN_MPPE; + } +#endif /* MPPE_SUPPORT */ +#if DEFLATE_SUPPORT + if (go->deflate) { + if (go->deflate_correct) { + p[0] = CI_DEFLATE; + p[1] = CILEN_DEFLATE; + p[2] = DEFLATE_MAKE_OPT(go->deflate_size); + p[3] = DEFLATE_CHK_SEQUENCE; + p += CILEN_DEFLATE; + } + if (go->deflate_draft) { + p[0] = CI_DEFLATE_DRAFT; + p[1] = CILEN_DEFLATE; + p[2] = p[2 - CILEN_DEFLATE]; + p[3] = DEFLATE_CHK_SEQUENCE; + p += CILEN_DEFLATE; + } + } +#endif /* DEFLATE_SUPPORT */ +#if BSDCOMPRESS_SUPPORT + if (go->bsd_compress) { + p[0] = CI_BSD_COMPRESS; + p[1] = CILEN_BSD_COMPRESS; + p[2] = BSD_MAKE_OPT(BSD_CURRENT_VERSION, go->bsd_bits); + p += CILEN_BSD_COMPRESS; + } +#endif /* BSDCOMPRESS_SUPPORT */ +#if PREDICTOR_SUPPORT + /* XXX Should Predictor 2 be preferable to Predictor 1? */ + if (go->predictor_1) { + p[0] = CI_PREDICTOR_1; + p[1] = CILEN_PREDICTOR_1; + p += CILEN_PREDICTOR_1; + } + if (go->predictor_2) { + p[0] = CI_PREDICTOR_2; + p[1] = CILEN_PREDICTOR_2; + p += CILEN_PREDICTOR_2; + } +#endif /* PREDICTOR_SUPPORT */ + + go->method = (p > p0)? p0[0]: 0; + + *lenp = p - p0; +} + +/* + * ccp_ackci - process a received configure-ack, and return + * 1 iff the packet was OK. + */ +static int ccp_ackci(fsm *f, u_char *p, int len) { + ppp_pcb *pcb = f->pcb; + ccp_options *go = &pcb->ccp_gotoptions; +#if BSDCOMPRESS_SUPPORT || PREDICTOR_SUPPORT + u_char *p0 = p; +#endif /* BSDCOMPRESS_SUPPORT || PREDICTOR_SUPPORT */ + +#if MPPE_SUPPORT + if (go->mppe) { + u_char opt_buf[CILEN_MPPE]; + + opt_buf[0] = CI_MPPE; + opt_buf[1] = CILEN_MPPE; + MPPE_OPTS_TO_CI(go->mppe, &opt_buf[2]); + if (len < CILEN_MPPE || memcmp(opt_buf, p, CILEN_MPPE)) + return 0; + p += CILEN_MPPE; + len -= CILEN_MPPE; + /* XXX Cope with first/fast ack */ + if (len == 0) + return 1; + } +#endif /* MPPE_SUPPORT */ +#if DEFLATE_SUPPORT + if (go->deflate) { + if (len < CILEN_DEFLATE + || p[0] != (go->deflate_correct? CI_DEFLATE: CI_DEFLATE_DRAFT) + || p[1] != CILEN_DEFLATE + || p[2] != DEFLATE_MAKE_OPT(go->deflate_size) + || p[3] != DEFLATE_CHK_SEQUENCE) + return 0; + p += CILEN_DEFLATE; + len -= CILEN_DEFLATE; + /* XXX Cope with first/fast ack */ + if (len == 0) + return 1; + if (go->deflate_correct && go->deflate_draft) { + if (len < CILEN_DEFLATE + || p[0] != CI_DEFLATE_DRAFT + || p[1] != CILEN_DEFLATE + || p[2] != DEFLATE_MAKE_OPT(go->deflate_size) + || p[3] != DEFLATE_CHK_SEQUENCE) + return 0; + p += CILEN_DEFLATE; + len -= CILEN_DEFLATE; + } + } +#endif /* DEFLATE_SUPPORT */ +#if BSDCOMPRESS_SUPPORT + if (go->bsd_compress) { + if (len < CILEN_BSD_COMPRESS + || p[0] != CI_BSD_COMPRESS || p[1] != CILEN_BSD_COMPRESS + || p[2] != BSD_MAKE_OPT(BSD_CURRENT_VERSION, go->bsd_bits)) + return 0; + p += CILEN_BSD_COMPRESS; + len -= CILEN_BSD_COMPRESS; + /* XXX Cope with first/fast ack */ + if (p == p0 && len == 0) + return 1; + } +#endif /* BSDCOMPRESS_SUPPORT */ +#if PREDICTOR_SUPPORT + if (go->predictor_1) { + if (len < CILEN_PREDICTOR_1 + || p[0] != CI_PREDICTOR_1 || p[1] != CILEN_PREDICTOR_1) + return 0; + p += CILEN_PREDICTOR_1; + len -= CILEN_PREDICTOR_1; + /* XXX Cope with first/fast ack */ + if (p == p0 && len == 0) + return 1; + } + if (go->predictor_2) { + if (len < CILEN_PREDICTOR_2 + || p[0] != CI_PREDICTOR_2 || p[1] != CILEN_PREDICTOR_2) + return 0; + p += CILEN_PREDICTOR_2; + len -= CILEN_PREDICTOR_2; + /* XXX Cope with first/fast ack */ + if (p == p0 && len == 0) + return 1; + } +#endif /* PREDICTOR_SUPPORT */ + + if (len != 0) + return 0; + return 1; +} + +/* + * ccp_nakci - process received configure-nak. + * Returns 1 iff the nak was OK. + */ +static int ccp_nakci(fsm *f, u_char *p, int len, int treat_as_reject) { + ppp_pcb *pcb = f->pcb; + ccp_options *go = &pcb->ccp_gotoptions; + ccp_options no; /* options we've seen already */ + ccp_options try_; /* options to ask for next time */ + LWIP_UNUSED_ARG(treat_as_reject); +#if !MPPE_SUPPORT && !DEFLATE_SUPPORT && !BSDCOMPRESS_SUPPORT + LWIP_UNUSED_ARG(p); + LWIP_UNUSED_ARG(len); +#endif /* !MPPE_SUPPORT && !DEFLATE_SUPPORT && !BSDCOMPRESS_SUPPORT */ + + memset(&no, 0, sizeof(no)); + try_ = *go; + +#if MPPE_SUPPORT + if (go->mppe && len >= CILEN_MPPE + && p[0] == CI_MPPE && p[1] == CILEN_MPPE) { + no.mppe = 1; + /* + * Peer wants us to use a different strength or other setting. + * Fail if we aren't willing to use his suggestion. + */ + MPPE_CI_TO_OPTS(&p[2], try_.mppe); + if ((try_.mppe & MPPE_OPT_STATEFUL) && pcb->settings.refuse_mppe_stateful) { + ppp_error(("Refusing MPPE stateful mode offered by peer")); + try_.mppe = 0; + } else if (((go->mppe | MPPE_OPT_STATEFUL) & try_.mppe) != try_.mppe) { + /* Peer must have set options we didn't request (suggest) */ + try_.mppe = 0; + } + + if (!try_.mppe) { + ppp_error(("MPPE required but peer negotiation failed")); + lcp_close(pcb, "MPPE required but peer negotiation failed"); + } + } +#endif /* MPPE_SUPPORT */ +#if DEFLATE_SUPPORT + if (go->deflate && len >= CILEN_DEFLATE + && p[0] == (go->deflate_correct? CI_DEFLATE: CI_DEFLATE_DRAFT) + && p[1] == CILEN_DEFLATE) { + no.deflate = 1; + /* + * Peer wants us to use a different code size or something. + * Stop asking for Deflate if we don't understand his suggestion. + */ + if (DEFLATE_METHOD(p[2]) != DEFLATE_METHOD_VAL + || DEFLATE_SIZE(p[2]) < DEFLATE_MIN_WORKS + || p[3] != DEFLATE_CHK_SEQUENCE) + try_.deflate = 0; + else if (DEFLATE_SIZE(p[2]) < go->deflate_size) + try_.deflate_size = DEFLATE_SIZE(p[2]); + p += CILEN_DEFLATE; + len -= CILEN_DEFLATE; + if (go->deflate_correct && go->deflate_draft + && len >= CILEN_DEFLATE && p[0] == CI_DEFLATE_DRAFT + && p[1] == CILEN_DEFLATE) { + p += CILEN_DEFLATE; + len -= CILEN_DEFLATE; + } + } +#endif /* DEFLATE_SUPPORT */ +#if BSDCOMPRESS_SUPPORT + if (go->bsd_compress && len >= CILEN_BSD_COMPRESS + && p[0] == CI_BSD_COMPRESS && p[1] == CILEN_BSD_COMPRESS) { + no.bsd_compress = 1; + /* + * Peer wants us to use a different number of bits + * or a different version. + */ + if (BSD_VERSION(p[2]) != BSD_CURRENT_VERSION) + try_.bsd_compress = 0; + else if (BSD_NBITS(p[2]) < go->bsd_bits) + try_.bsd_bits = BSD_NBITS(p[2]); + p += CILEN_BSD_COMPRESS; + len -= CILEN_BSD_COMPRESS; + } +#endif /* BSDCOMPRESS_SUPPORT */ + + /* + * Predictor-1 and 2 have no options, so they can't be Naked. + * + * There may be remaining options but we ignore them. + */ + + if (f->state != PPP_FSM_OPENED) + *go = try_; + return 1; +} + +/* + * ccp_rejci - reject some of our suggested compression methods. + */ +static int ccp_rejci(fsm *f, u_char *p, int len) { + ppp_pcb *pcb = f->pcb; + ccp_options *go = &pcb->ccp_gotoptions; + ccp_options try_; /* options to request next time */ + + try_ = *go; + + /* + * Cope with empty configure-rejects by ceasing to send + * configure-requests. + */ + if (len == 0 && pcb->ccp_all_rejected) + return -1; + +#if MPPE_SUPPORT + if (go->mppe && len >= CILEN_MPPE + && p[0] == CI_MPPE && p[1] == CILEN_MPPE) { + ppp_error(("MPPE required but peer refused")); + lcp_close(pcb, "MPPE required but peer refused"); + p += CILEN_MPPE; + len -= CILEN_MPPE; + } +#endif /* MPPE_SUPPORT */ +#if DEFLATE_SUPPORT + if (go->deflate_correct && len >= CILEN_DEFLATE + && p[0] == CI_DEFLATE && p[1] == CILEN_DEFLATE) { + if (p[2] != DEFLATE_MAKE_OPT(go->deflate_size) + || p[3] != DEFLATE_CHK_SEQUENCE) + return 0; /* Rej is bad */ + try_.deflate_correct = 0; + p += CILEN_DEFLATE; + len -= CILEN_DEFLATE; + } + if (go->deflate_draft && len >= CILEN_DEFLATE + && p[0] == CI_DEFLATE_DRAFT && p[1] == CILEN_DEFLATE) { + if (p[2] != DEFLATE_MAKE_OPT(go->deflate_size) + || p[3] != DEFLATE_CHK_SEQUENCE) + return 0; /* Rej is bad */ + try_.deflate_draft = 0; + p += CILEN_DEFLATE; + len -= CILEN_DEFLATE; + } + if (!try_.deflate_correct && !try_.deflate_draft) + try_.deflate = 0; +#endif /* DEFLATE_SUPPORT */ +#if BSDCOMPRESS_SUPPORT + if (go->bsd_compress && len >= CILEN_BSD_COMPRESS + && p[0] == CI_BSD_COMPRESS && p[1] == CILEN_BSD_COMPRESS) { + if (p[2] != BSD_MAKE_OPT(BSD_CURRENT_VERSION, go->bsd_bits)) + return 0; + try_.bsd_compress = 0; + p += CILEN_BSD_COMPRESS; + len -= CILEN_BSD_COMPRESS; + } +#endif /* BSDCOMPRESS_SUPPORT */ +#if PREDICTOR_SUPPORT + if (go->predictor_1 && len >= CILEN_PREDICTOR_1 + && p[0] == CI_PREDICTOR_1 && p[1] == CILEN_PREDICTOR_1) { + try_.predictor_1 = 0; + p += CILEN_PREDICTOR_1; + len -= CILEN_PREDICTOR_1; + } + if (go->predictor_2 && len >= CILEN_PREDICTOR_2 + && p[0] == CI_PREDICTOR_2 && p[1] == CILEN_PREDICTOR_2) { + try_.predictor_2 = 0; + p += CILEN_PREDICTOR_2; + len -= CILEN_PREDICTOR_2; + } +#endif /* PREDICTOR_SUPPORT */ + + if (len != 0) + return 0; + + if (f->state != PPP_FSM_OPENED) + *go = try_; + + return 1; +} + +/* + * ccp_reqci - processed a received configure-request. + * Returns CONFACK, CONFNAK or CONFREJ and the packet modified + * appropriately. + */ +static int ccp_reqci(fsm *f, u_char *p, int *lenp, int dont_nak) { + ppp_pcb *pcb = f->pcb; + ccp_options *ho = &pcb->ccp_hisoptions; + ccp_options *ao = &pcb->ccp_allowoptions; + int ret, newret; +#if DEFLATE_SUPPORT || BSDCOMPRESS_SUPPORT + int res; + int nb; +#endif /* DEFLATE_SUPPORT || BSDCOMPRESS_SUPPORT */ + u_char *p0, *retp; + int len, clen, type; +#if MPPE_SUPPORT + u8_t rej_for_ci_mppe = 1; /* Are we rejecting based on a bad/missing */ + /* CI_MPPE, or due to other options? */ +#endif /* MPPE_SUPPORT */ + + ret = CONFACK; + retp = p0 = p; + len = *lenp; + + memset(ho, 0, sizeof(ccp_options)); + ho->method = (len > 0)? p[0]: 0; + + while (len > 0) { + newret = CONFACK; + if (len < 2 || p[1] < 2 || p[1] > len) { + /* length is bad */ + clen = len; + newret = CONFREJ; + + } else { + type = p[0]; + clen = p[1]; + + switch (type) { +#if MPPE_SUPPORT + case CI_MPPE: + if (!ao->mppe || clen != CILEN_MPPE) { + newret = CONFREJ; + break; + } + MPPE_CI_TO_OPTS(&p[2], ho->mppe); + + /* Nak if anything unsupported or unknown are set. */ + if (ho->mppe & MPPE_OPT_UNSUPPORTED) { + newret = CONFNAK; + ho->mppe &= ~MPPE_OPT_UNSUPPORTED; + } + if (ho->mppe & MPPE_OPT_UNKNOWN) { + newret = CONFNAK; + ho->mppe &= ~MPPE_OPT_UNKNOWN; + } + + /* Check state opt */ + if (ho->mppe & MPPE_OPT_STATEFUL) { + /* + * We can Nak and request stateless, but it's a + * lot easier to just assume the peer will request + * it if he can do it; stateful mode is bad over + * the Internet -- which is where we expect MPPE. + */ + if (pcb->settings.refuse_mppe_stateful) { + ppp_error(("Refusing MPPE stateful mode offered by peer")); + newret = CONFREJ; + break; + } + } + + /* Find out which of {S,L} are set. */ + if ((ho->mppe & MPPE_OPT_128) + && (ho->mppe & MPPE_OPT_40)) { + /* Both are set, negotiate the strongest. */ + newret = CONFNAK; + if (ao->mppe & MPPE_OPT_128) + ho->mppe &= ~MPPE_OPT_40; + else if (ao->mppe & MPPE_OPT_40) + ho->mppe &= ~MPPE_OPT_128; + else { + newret = CONFREJ; + break; + } + } else if (ho->mppe & MPPE_OPT_128) { + if (!(ao->mppe & MPPE_OPT_128)) { + newret = CONFREJ; + break; + } + } else if (ho->mppe & MPPE_OPT_40) { + if (!(ao->mppe & MPPE_OPT_40)) { + newret = CONFREJ; + break; + } + } else { + /* Neither are set. */ + /* We cannot accept this. */ + newret = CONFNAK; + /* Give the peer our idea of what can be used, + so it can choose and confirm */ + ho->mppe = ao->mppe; + } + + /* rebuild the opts */ + MPPE_OPTS_TO_CI(ho->mppe, &p[2]); + if (newret == CONFACK) { + int mtu; + + mppe_init(pcb, &pcb->mppe_comp, ho->mppe); + /* + * We need to decrease the interface MTU by MPPE_PAD + * because MPPE frames **grow**. The kernel [must] + * allocate MPPE_PAD extra bytes in xmit buffers. + */ + mtu = netif_get_mtu(pcb); + if (mtu) + netif_set_mtu(pcb, mtu - MPPE_PAD); + else + newret = CONFREJ; + } + + /* + * We have accepted MPPE or are willing to negotiate + * MPPE parameters. A CONFREJ is due to subsequent + * (non-MPPE) processing. + */ + rej_for_ci_mppe = 0; + break; +#endif /* MPPE_SUPPORT */ +#if DEFLATE_SUPPORT + case CI_DEFLATE: + case CI_DEFLATE_DRAFT: + if (!ao->deflate || clen != CILEN_DEFLATE + || (!ao->deflate_correct && type == CI_DEFLATE) + || (!ao->deflate_draft && type == CI_DEFLATE_DRAFT)) { + newret = CONFREJ; + break; + } + + ho->deflate = 1; + ho->deflate_size = nb = DEFLATE_SIZE(p[2]); + if (DEFLATE_METHOD(p[2]) != DEFLATE_METHOD_VAL + || p[3] != DEFLATE_CHK_SEQUENCE + || nb > ao->deflate_size || nb < DEFLATE_MIN_WORKS) { + newret = CONFNAK; + if (!dont_nak) { + p[2] = DEFLATE_MAKE_OPT(ao->deflate_size); + p[3] = DEFLATE_CHK_SEQUENCE; + /* fall through to test this #bits below */ + } else + break; + } + + /* + * Check whether we can do Deflate with the window + * size they want. If the window is too big, reduce + * it until the kernel can cope and nak with that. + * We only check this for the first option. + */ + if (p == p0) { + for (;;) { + res = ccp_test(pcb, p, CILEN_DEFLATE, 1); + if (res > 0) + break; /* it's OK now */ + if (res < 0 || nb == DEFLATE_MIN_WORKS || dont_nak) { + newret = CONFREJ; + p[2] = DEFLATE_MAKE_OPT(ho->deflate_size); + break; + } + newret = CONFNAK; + --nb; + p[2] = DEFLATE_MAKE_OPT(nb); + } + } + break; +#endif /* DEFLATE_SUPPORT */ +#if BSDCOMPRESS_SUPPORT + case CI_BSD_COMPRESS: + if (!ao->bsd_compress || clen != CILEN_BSD_COMPRESS) { + newret = CONFREJ; + break; + } + + ho->bsd_compress = 1; + ho->bsd_bits = nb = BSD_NBITS(p[2]); + if (BSD_VERSION(p[2]) != BSD_CURRENT_VERSION + || nb > ao->bsd_bits || nb < BSD_MIN_BITS) { + newret = CONFNAK; + if (!dont_nak) { + p[2] = BSD_MAKE_OPT(BSD_CURRENT_VERSION, ao->bsd_bits); + /* fall through to test this #bits below */ + } else + break; + } + + /* + * Check whether we can do BSD-Compress with the code + * size they want. If the code size is too big, reduce + * it until the kernel can cope and nak with that. + * We only check this for the first option. + */ + if (p == p0) { + for (;;) { + res = ccp_test(pcb, p, CILEN_BSD_COMPRESS, 1); + if (res > 0) + break; + if (res < 0 || nb == BSD_MIN_BITS || dont_nak) { + newret = CONFREJ; + p[2] = BSD_MAKE_OPT(BSD_CURRENT_VERSION, + ho->bsd_bits); + break; + } + newret = CONFNAK; + --nb; + p[2] = BSD_MAKE_OPT(BSD_CURRENT_VERSION, nb); + } + } + break; +#endif /* BSDCOMPRESS_SUPPORT */ +#if PREDICTOR_SUPPORT + case CI_PREDICTOR_1: + if (!ao->predictor_1 || clen != CILEN_PREDICTOR_1) { + newret = CONFREJ; + break; + } + + ho->predictor_1 = 1; + if (p == p0 + && ccp_test(pcb, p, CILEN_PREDICTOR_1, 1) <= 0) { + newret = CONFREJ; + } + break; + + case CI_PREDICTOR_2: + if (!ao->predictor_2 || clen != CILEN_PREDICTOR_2) { + newret = CONFREJ; + break; + } + + ho->predictor_2 = 1; + if (p == p0 + && ccp_test(pcb, p, CILEN_PREDICTOR_2, 1) <= 0) { + newret = CONFREJ; + } + break; +#endif /* PREDICTOR_SUPPORT */ + + default: + newret = CONFREJ; + } + } + + if (newret == CONFNAK && dont_nak) + newret = CONFREJ; + if (!(newret == CONFACK || (newret == CONFNAK && ret == CONFREJ))) { + /* we're returning this option */ + if (newret == CONFREJ && ret == CONFNAK) + retp = p0; + ret = newret; + if (p != retp) + MEMCPY(retp, p, clen); + retp += clen; + } + + p += clen; + len -= clen; + } + + if (ret != CONFACK) { + if (ret == CONFREJ && *lenp == retp - p0) + pcb->ccp_all_rejected = 1; + else + *lenp = retp - p0; + } +#if MPPE_SUPPORT + if (ret == CONFREJ && ao->mppe && rej_for_ci_mppe) { + ppp_error(("MPPE required but peer negotiation failed")); + lcp_close(pcb, "MPPE required but peer negotiation failed"); + } +#endif /* MPPE_SUPPORT */ + return ret; +} + +/* + * Make a string name for a compression method (or 2). + */ +static const char *method_name(ccp_options *opt, ccp_options *opt2) { + static char result[64]; +#if !DEFLATE_SUPPORT && !BSDCOMPRESS_SUPPORT + LWIP_UNUSED_ARG(opt2); +#endif /* !DEFLATE_SUPPORT && !BSDCOMPRESS_SUPPORT */ + + if (!ccp_anycompress(opt)) + return "(none)"; + switch (opt->method) { +#if MPPE_SUPPORT + case CI_MPPE: + { + char *p = result; + char *q = result + sizeof(result); /* 1 past result */ + + ppp_slprintf(p, q - p, "MPPE "); + p += 5; + if (opt->mppe & MPPE_OPT_128) { + ppp_slprintf(p, q - p, "128-bit "); + p += 8; + } + if (opt->mppe & MPPE_OPT_40) { + ppp_slprintf(p, q - p, "40-bit "); + p += 7; + } + if (opt->mppe & MPPE_OPT_STATEFUL) + ppp_slprintf(p, q - p, "stateful"); + else + ppp_slprintf(p, q - p, "stateless"); + + break; + } +#endif /* MPPE_SUPPORT */ +#if DEFLATE_SUPPORT + case CI_DEFLATE: + case CI_DEFLATE_DRAFT: + if (opt2 != NULL && opt2->deflate_size != opt->deflate_size) + ppp_slprintf(result, sizeof(result), "Deflate%s (%d/%d)", + (opt->method == CI_DEFLATE_DRAFT? "(old#)": ""), + opt->deflate_size, opt2->deflate_size); + else + ppp_slprintf(result, sizeof(result), "Deflate%s (%d)", + (opt->method == CI_DEFLATE_DRAFT? "(old#)": ""), + opt->deflate_size); + break; +#endif /* DEFLATE_SUPPORT */ +#if BSDCOMPRESS_SUPPORT + case CI_BSD_COMPRESS: + if (opt2 != NULL && opt2->bsd_bits != opt->bsd_bits) + ppp_slprintf(result, sizeof(result), "BSD-Compress (%d/%d)", + opt->bsd_bits, opt2->bsd_bits); + else + ppp_slprintf(result, sizeof(result), "BSD-Compress (%d)", + opt->bsd_bits); + break; +#endif /* BSDCOMPRESS_SUPPORT */ +#if PREDICTOR_SUPPORT + case CI_PREDICTOR_1: + return "Predictor 1"; + case CI_PREDICTOR_2: + return "Predictor 2"; +#endif /* PREDICTOR_SUPPORT */ + default: + ppp_slprintf(result, sizeof(result), "Method %d", opt->method); + } + return result; +} + +/* + * CCP has come up - inform the kernel driver and log a message. + */ +static void ccp_up(fsm *f) { + ppp_pcb *pcb = f->pcb; + ccp_options *go = &pcb->ccp_gotoptions; + ccp_options *ho = &pcb->ccp_hisoptions; + char method1[64]; + + ccp_set(pcb, 1, 1, go->method, ho->method); + if (ccp_anycompress(go)) { + if (ccp_anycompress(ho)) { + if (go->method == ho->method) { + ppp_notice(("%s compression enabled", method_name(go, ho))); + } else { + ppp_strlcpy(method1, method_name(go, NULL), sizeof(method1)); + ppp_notice(("%s / %s compression enabled", + method1, method_name(ho, NULL))); + } + } else + ppp_notice(("%s receive compression enabled", method_name(go, NULL))); + } else if (ccp_anycompress(ho)) + ppp_notice(("%s transmit compression enabled", method_name(ho, NULL))); +#if MPPE_SUPPORT + if (go->mppe) { + continue_networks(pcb); /* Bring up IP et al */ + } +#endif /* MPPE_SUPPORT */ +} + +/* + * CCP has gone down - inform the kernel driver. + */ +static void ccp_down(fsm *f) { + ppp_pcb *pcb = f->pcb; +#if MPPE_SUPPORT + ccp_options *go = &pcb->ccp_gotoptions; +#endif /* MPPE_SUPPORT */ + + if (pcb->ccp_localstate & RACK_PENDING) + UNTIMEOUT(ccp_rack_timeout, f); + pcb->ccp_localstate = 0; + ccp_set(pcb, 1, 0, 0, 0); +#if MPPE_SUPPORT + if (go->mppe) { + go->mppe = 0; + if (pcb->lcp_fsm.state == PPP_FSM_OPENED) { + /* If LCP is not already going down, make sure it does. */ + ppp_error(("MPPE disabled")); + lcp_close(pcb, "MPPE disabled"); + } + } +#endif /* MPPE_SUPPORT */ +} + +#if PRINTPKT_SUPPORT +/* + * Print the contents of a CCP packet. + */ +static const char* const ccp_codenames[] = { + "ConfReq", "ConfAck", "ConfNak", "ConfRej", + "TermReq", "TermAck", "CodeRej", + NULL, NULL, NULL, NULL, NULL, NULL, + "ResetReq", "ResetAck", +}; + +static int ccp_printpkt(const u_char *p, int plen, void (*printer) (void *, const char *, ...), void *arg) { + const u_char *p0, *optend; + int code, id, len; + int optlen; + + p0 = p; + if (plen < HEADERLEN) + return 0; + code = p[0]; + id = p[1]; + len = (p[2] << 8) + p[3]; + if (len < HEADERLEN || len > plen) + return 0; + + if (code >= 1 && code <= (int)LWIP_ARRAYSIZE(ccp_codenames) && ccp_codenames[code-1] != NULL) + printer(arg, " %s", ccp_codenames[code-1]); + else + printer(arg, " code=0x%x", code); + printer(arg, " id=0x%x", id); + len -= HEADERLEN; + p += HEADERLEN; + + switch (code) { + case CONFREQ: + case CONFACK: + case CONFNAK: + case CONFREJ: + /* print list of possible compression methods */ + while (len >= 2) { + code = p[0]; + optlen = p[1]; + if (optlen < 2 || optlen > len) + break; + printer(arg, " <"); + len -= optlen; + optend = p + optlen; + switch (code) { +#if MPPE_SUPPORT + case CI_MPPE: + if (optlen >= CILEN_MPPE) { + u_char mppe_opts; + + MPPE_CI_TO_OPTS(&p[2], mppe_opts); + printer(arg, "mppe %s %s %s %s %s %s%s", + (p[2] & MPPE_H_BIT)? "+H": "-H", + (p[5] & MPPE_M_BIT)? "+M": "-M", + (p[5] & MPPE_S_BIT)? "+S": "-S", + (p[5] & MPPE_L_BIT)? "+L": "-L", + (p[5] & MPPE_D_BIT)? "+D": "-D", + (p[5] & MPPE_C_BIT)? "+C": "-C", + (mppe_opts & MPPE_OPT_UNKNOWN)? " +U": ""); + if (mppe_opts & MPPE_OPT_UNKNOWN) + printer(arg, " (%.2x %.2x %.2x %.2x)", + p[2], p[3], p[4], p[5]); + p += CILEN_MPPE; + } + break; +#endif /* MPPE_SUPPORT */ +#if DEFLATE_SUPPORT + case CI_DEFLATE: + case CI_DEFLATE_DRAFT: + if (optlen >= CILEN_DEFLATE) { + printer(arg, "deflate%s %d", + (code == CI_DEFLATE_DRAFT? "(old#)": ""), + DEFLATE_SIZE(p[2])); + if (DEFLATE_METHOD(p[2]) != DEFLATE_METHOD_VAL) + printer(arg, " method %d", DEFLATE_METHOD(p[2])); + if (p[3] != DEFLATE_CHK_SEQUENCE) + printer(arg, " check %d", p[3]); + p += CILEN_DEFLATE; + } + break; +#endif /* DEFLATE_SUPPORT */ +#if BSDCOMPRESS_SUPPORT + case CI_BSD_COMPRESS: + if (optlen >= CILEN_BSD_COMPRESS) { + printer(arg, "bsd v%d %d", BSD_VERSION(p[2]), + BSD_NBITS(p[2])); + p += CILEN_BSD_COMPRESS; + } + break; +#endif /* BSDCOMPRESS_SUPPORT */ +#if PREDICTOR_SUPPORT + case CI_PREDICTOR_1: + if (optlen >= CILEN_PREDICTOR_1) { + printer(arg, "predictor 1"); + p += CILEN_PREDICTOR_1; + } + break; + case CI_PREDICTOR_2: + if (optlen >= CILEN_PREDICTOR_2) { + printer(arg, "predictor 2"); + p += CILEN_PREDICTOR_2; + } + break; +#endif /* PREDICTOR_SUPPORT */ + default: + break; + } + while (p < optend) + printer(arg, " %.2x", *p++); + printer(arg, ">"); + } + break; + + case TERMACK: + case TERMREQ: + if (len > 0 && *p >= ' ' && *p < 0x7f) { + ppp_print_string(p, len, printer, arg); + p += len; + len = 0; + } + break; + default: + break; + } + + /* dump out the rest of the packet in hex */ + while (--len >= 0) + printer(arg, " %.2x", *p++); + + return p - p0; +} +#endif /* PRINTPKT_SUPPORT */ + +#if PPP_DATAINPUT +/* + * We have received a packet that the decompressor failed to + * decompress. Here we would expect to issue a reset-request, but + * Motorola has a patent on resetting the compressor as a result of + * detecting an error in the decompressed data after decompression. + * (See US patent 5,130,993; international patent publication number + * WO 91/10289; Australian patent 73296/91.) + * + * So we ask the kernel whether the error was detected after + * decompression; if it was, we take CCP down, thus disabling + * compression :-(, otherwise we issue the reset-request. + */ +static void ccp_datainput(ppp_pcb *pcb, u_char *pkt, int len) { + fsm *f; +#if MPPE_SUPPORT + ccp_options *go = &pcb->ccp_gotoptions; +#endif /* MPPE_SUPPORT */ + LWIP_UNUSED_ARG(pkt); + LWIP_UNUSED_ARG(len); + + f = &pcb->ccp_fsm; + if (f->state == PPP_FSM_OPENED) { + if (ccp_fatal_error(pcb)) { + /* + * Disable compression by taking CCP down. + */ + ppp_error(("Lost compression sync: disabling compression")); + ccp_close(pcb, "Lost compression sync"); +#if MPPE_SUPPORT + /* + * If we were doing MPPE, we must also take the link down. + */ + if (go->mppe) { + ppp_error(("Too many MPPE errors, closing LCP")); + lcp_close(pcb, "Too many MPPE errors"); + } +#endif /* MPPE_SUPPORT */ + } else { + /* + * Send a reset-request to reset the peer's compressor. + * We don't do that if we are still waiting for an + * acknowledgement to a previous reset-request. + */ + if (!(pcb->ccp_localstate & RACK_PENDING)) { + fsm_sdata(f, CCP_RESETREQ, f->reqid = ++f->id, NULL, 0); + TIMEOUT(ccp_rack_timeout, f, RACKTIMEOUT); + pcb->ccp_localstate |= RACK_PENDING; + } else + pcb->ccp_localstate |= RREQ_REPEAT; + } + } +} +#endif /* PPP_DATAINPUT */ + +/* + * We have received a packet that the decompressor failed to + * decompress. Issue a reset-request. + */ +void ccp_resetrequest(ppp_pcb *pcb) { + fsm *f = &pcb->ccp_fsm; + + if (f->state != PPP_FSM_OPENED) + return; + + /* + * Send a reset-request to reset the peer's compressor. + * We don't do that if we are still waiting for an + * acknowledgement to a previous reset-request. + */ + if (!(pcb->ccp_localstate & RACK_PENDING)) { + fsm_sdata(f, CCP_RESETREQ, f->reqid = ++f->id, NULL, 0); + TIMEOUT(ccp_rack_timeout, f, RACKTIMEOUT); + pcb->ccp_localstate |= RACK_PENDING; + } else + pcb->ccp_localstate |= RREQ_REPEAT; +} + +/* + * Timeout waiting for reset-ack. + */ +static void ccp_rack_timeout(void *arg) { + fsm *f = (fsm*)arg; + ppp_pcb *pcb = f->pcb; + + if (f->state == PPP_FSM_OPENED && (pcb->ccp_localstate & RREQ_REPEAT)) { + fsm_sdata(f, CCP_RESETREQ, f->reqid, NULL, 0); + TIMEOUT(ccp_rack_timeout, f, RACKTIMEOUT); + pcb->ccp_localstate &= ~RREQ_REPEAT; + } else + pcb->ccp_localstate &= ~RACK_PENDING; +} + +#endif /* PPP_SUPPORT && CCP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/chap-md5.c b/middleware/lwip/src/netif/ppp/chap-md5.c new file mode 100644 index 0000000..88f069f --- /dev/null +++ b/middleware/lwip/src/netif/ppp/chap-md5.c @@ -0,0 +1,126 @@ +/* + * chap-md5.c - New CHAP/MD5 implementation. + * + * Copyright (c) 2003 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && CHAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#if 0 /* UNUSED */ +#include +#include +#endif /* UNUSED */ + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/chap-new.h" +#include "netif/ppp/chap-md5.h" +#include "netif/ppp/magic.h" +#include "netif/ppp/pppcrypt.h" + +#define MD5_HASH_SIZE 16 +#define MD5_MIN_CHALLENGE 17 +#define MD5_MAX_CHALLENGE 24 +#define MD5_MIN_MAX_POWER_OF_TWO_CHALLENGE 3 /* 2^3-1 = 7, 17+7 = 24 */ + +#if PPP_SERVER +static void chap_md5_generate_challenge(ppp_pcb *pcb, unsigned char *cp) { + int clen; + LWIP_UNUSED_ARG(pcb); + + clen = MD5_MIN_CHALLENGE + magic_pow(MD5_MIN_MAX_POWER_OF_TWO_CHALLENGE); + *cp++ = clen; + magic_random_bytes(cp, clen); +} + +static int chap_md5_verify_response(ppp_pcb *pcb, int id, const char *name, + const unsigned char *secret, int secret_len, + const unsigned char *challenge, const unsigned char *response, + char *message, int message_space) { + lwip_md5_context ctx; + unsigned char idbyte = id; + unsigned char hash[MD5_HASH_SIZE]; + int challenge_len, response_len; + LWIP_UNUSED_ARG(name); + LWIP_UNUSED_ARG(pcb); + + challenge_len = *challenge++; + response_len = *response++; + if (response_len == MD5_HASH_SIZE) { + /* Generate hash of ID, secret, challenge */ + lwip_md5_init(&ctx); + lwip_md5_starts(&ctx); + lwip_md5_update(&ctx, &idbyte, 1); + lwip_md5_update(&ctx, secret, secret_len); + lwip_md5_update(&ctx, challenge, challenge_len); + lwip_md5_finish(&ctx, hash); + lwip_md5_free(&ctx); + + /* Test if our hash matches the peer's response */ + if (memcmp(hash, response, MD5_HASH_SIZE) == 0) { + ppp_slprintf(message, message_space, "Access granted"); + return 1; + } + } + ppp_slprintf(message, message_space, "Access denied"); + return 0; +} +#endif /* PPP_SERVER */ + +static void chap_md5_make_response(ppp_pcb *pcb, unsigned char *response, int id, const char *our_name, + const unsigned char *challenge, const char *secret, int secret_len, + unsigned char *private_) { + lwip_md5_context ctx; + unsigned char idbyte = id; + int challenge_len = *challenge++; + LWIP_UNUSED_ARG(our_name); + LWIP_UNUSED_ARG(private_); + LWIP_UNUSED_ARG(pcb); + + lwip_md5_init(&ctx); + lwip_md5_starts(&ctx); + lwip_md5_update(&ctx, &idbyte, 1); + lwip_md5_update(&ctx, (const u_char *)secret, secret_len); + lwip_md5_update(&ctx, challenge, challenge_len); + lwip_md5_finish(&ctx, &response[1]); + lwip_md5_free(&ctx); + response[0] = MD5_HASH_SIZE; +} + +const struct chap_digest_type md5_digest = { + CHAP_MD5, /* code */ +#if PPP_SERVER + chap_md5_generate_challenge, + chap_md5_verify_response, +#endif /* PPP_SERVER */ + chap_md5_make_response, + NULL, /* check_success */ + NULL, /* handle_failure */ +}; + +#endif /* PPP_SUPPORT && CHAP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/chap-new.c b/middleware/lwip/src/netif/ppp/chap-new.c new file mode 100644 index 0000000..2f7532b --- /dev/null +++ b/middleware/lwip/src/netif/ppp/chap-new.c @@ -0,0 +1,677 @@ +/* + * chap-new.c - New CHAP implementation. + * + * Copyright (c) 2003 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && CHAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#if 0 /* UNUSED */ +#include +#include +#endif /* UNUSED */ + +#include "netif/ppp/ppp_impl.h" + +#if 0 /* UNUSED */ +#include "session.h" +#endif /* UNUSED */ + +#include "netif/ppp/chap-new.h" +#include "netif/ppp/chap-md5.h" +#if MSCHAP_SUPPORT +#include "netif/ppp/chap_ms.h" +#endif +#include "netif/ppp/magic.h" + +#if 0 /* UNUSED */ +/* Hook for a plugin to validate CHAP challenge */ +int (*chap_verify_hook)(const char *name, const char *ourname, int id, + const struct chap_digest_type *digest, + const unsigned char *challenge, const unsigned char *response, + char *message, int message_space) = NULL; +#endif /* UNUSED */ + +#if PPP_OPTIONS +/* + * Command-line options. + */ +static option_t chap_option_list[] = { + { "chap-restart", o_int, &chap_timeout_time, + "Set timeout for CHAP", OPT_PRIO }, + { "chap-max-challenge", o_int, &pcb->settings.chap_max_transmits, + "Set max #xmits for challenge", OPT_PRIO }, + { "chap-interval", o_int, &pcb->settings.chap_rechallenge_time, + "Set interval for rechallenge", OPT_PRIO }, + { NULL } +}; +#endif /* PPP_OPTIONS */ + + +/* Values for flags in chap_client_state and chap_server_state */ +#define LOWERUP 1 +#define AUTH_STARTED 2 +#define AUTH_DONE 4 +#define AUTH_FAILED 8 +#define TIMEOUT_PENDING 0x10 +#define CHALLENGE_VALID 0x20 + +/* + * Prototypes. + */ +static void chap_init(ppp_pcb *pcb); +static void chap_lowerup(ppp_pcb *pcb); +static void chap_lowerdown(ppp_pcb *pcb); +#if PPP_SERVER +static void chap_timeout(void *arg); +static void chap_generate_challenge(ppp_pcb *pcb); +static void chap_handle_response(ppp_pcb *pcb, int code, + unsigned char *pkt, int len); +static int chap_verify_response(ppp_pcb *pcb, const char *name, const char *ourname, int id, + const struct chap_digest_type *digest, + const unsigned char *challenge, const unsigned char *response, + char *message, int message_space); +#endif /* PPP_SERVER */ +static void chap_respond(ppp_pcb *pcb, int id, + unsigned char *pkt, int len); +static void chap_handle_status(ppp_pcb *pcb, int code, int id, + unsigned char *pkt, int len); +static void chap_protrej(ppp_pcb *pcb); +static void chap_input(ppp_pcb *pcb, unsigned char *pkt, int pktlen); +#if PRINTPKT_SUPPORT +static int chap_print_pkt(const unsigned char *p, int plen, + void (*printer) (void *, const char *, ...), void *arg); +#endif /* PRINTPKT_SUPPORT */ + +/* List of digest types that we know about */ +static const struct chap_digest_type* const chap_digests[] = { + &md5_digest, +#if MSCHAP_SUPPORT + &chapms_digest, + &chapms2_digest, +#endif /* MSCHAP_SUPPORT */ + NULL +}; + +/* + * chap_init - reset to initial state. + */ +static void chap_init(ppp_pcb *pcb) { + LWIP_UNUSED_ARG(pcb); + +#if 0 /* Not necessary, everything is cleared in ppp_new() */ + memset(&pcb->chap_client, 0, sizeof(chap_client_state)); +#if PPP_SERVER + memset(&pcb->chap_server, 0, sizeof(chap_server_state)); +#endif /* PPP_SERVER */ +#endif /* 0 */ +} + +/* + * chap_lowerup - we can start doing stuff now. + */ +static void chap_lowerup(ppp_pcb *pcb) { + + pcb->chap_client.flags |= LOWERUP; +#if PPP_SERVER + pcb->chap_server.flags |= LOWERUP; + if (pcb->chap_server.flags & AUTH_STARTED) + chap_timeout(pcb); +#endif /* PPP_SERVER */ +} + +static void chap_lowerdown(ppp_pcb *pcb) { + + pcb->chap_client.flags = 0; +#if PPP_SERVER + if (pcb->chap_server.flags & TIMEOUT_PENDING) + UNTIMEOUT(chap_timeout, pcb); + pcb->chap_server.flags = 0; +#endif /* PPP_SERVER */ +} + +#if PPP_SERVER +/* + * chap_auth_peer - Start authenticating the peer. + * If the lower layer is already up, we start sending challenges, + * otherwise we wait for the lower layer to come up. + */ +void chap_auth_peer(ppp_pcb *pcb, const char *our_name, int digest_code) { + const struct chap_digest_type *dp; + int i; + + if (pcb->chap_server.flags & AUTH_STARTED) { + ppp_error(("CHAP: peer authentication already started!")); + return; + } + for (i = 0; (dp = chap_digests[i]) != NULL; ++i) + if (dp->code == digest_code) + break; + if (dp == NULL) + ppp_fatal(("CHAP digest 0x%x requested but not available", + digest_code)); + + pcb->chap_server.digest = dp; + pcb->chap_server.name = our_name; + /* Start with a random ID value */ + pcb->chap_server.id = magic(); + pcb->chap_server.flags |= AUTH_STARTED; + if (pcb->chap_server.flags & LOWERUP) + chap_timeout(pcb); +} +#endif /* PPP_SERVER */ + +/* + * chap_auth_with_peer - Prepare to authenticate ourselves to the peer. + * There isn't much to do until we receive a challenge. + */ +void chap_auth_with_peer(ppp_pcb *pcb, const char *our_name, int digest_code) { + const struct chap_digest_type *dp; + int i; + + if(NULL == our_name) + return; + + if (pcb->chap_client.flags & AUTH_STARTED) { + ppp_error(("CHAP: authentication with peer already started!")); + return; + } + for (i = 0; (dp = chap_digests[i]) != NULL; ++i) + if (dp->code == digest_code) + break; + + if (dp == NULL) + ppp_fatal(("CHAP digest 0x%x requested but not available", + digest_code)); + + pcb->chap_client.digest = dp; + pcb->chap_client.name = our_name; + pcb->chap_client.flags |= AUTH_STARTED; +} + +#if PPP_SERVER +/* + * chap_timeout - It's time to send another challenge to the peer. + * This could be either a retransmission of a previous challenge, + * or a new challenge to start re-authentication. + */ +static void chap_timeout(void *arg) { + ppp_pcb *pcb = (ppp_pcb*)arg; + struct pbuf *p; + + pcb->chap_server.flags &= ~TIMEOUT_PENDING; + if ((pcb->chap_server.flags & CHALLENGE_VALID) == 0) { + pcb->chap_server.challenge_xmits = 0; + chap_generate_challenge(pcb); + pcb->chap_server.flags |= CHALLENGE_VALID; + } else if (pcb->chap_server.challenge_xmits >= pcb->settings.chap_max_transmits) { + pcb->chap_server.flags &= ~CHALLENGE_VALID; + pcb->chap_server.flags |= AUTH_DONE | AUTH_FAILED; + auth_peer_fail(pcb, PPP_CHAP); + return; + } + + p = pbuf_alloc(PBUF_RAW, (u16_t)(pcb->chap_server.challenge_pktlen), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + MEMCPY(p->payload, pcb->chap_server.challenge, pcb->chap_server.challenge_pktlen); + ppp_write(pcb, p); + ++pcb->chap_server.challenge_xmits; + pcb->chap_server.flags |= TIMEOUT_PENDING; + TIMEOUT(chap_timeout, arg, pcb->settings.chap_timeout_time); +} + +/* + * chap_generate_challenge - generate a challenge string and format + * the challenge packet in pcb->chap_server.challenge_pkt. + */ +static void chap_generate_challenge(ppp_pcb *pcb) { + int clen = 1, nlen, len; + unsigned char *p; + + p = pcb->chap_server.challenge; + MAKEHEADER(p, PPP_CHAP); + p += CHAP_HDRLEN; + pcb->chap_server.digest->generate_challenge(pcb, p); + clen = *p; + nlen = strlen(pcb->chap_server.name); + memcpy(p + 1 + clen, pcb->chap_server.name, nlen); + + len = CHAP_HDRLEN + 1 + clen + nlen; + pcb->chap_server.challenge_pktlen = PPP_HDRLEN + len; + + p = pcb->chap_server.challenge + PPP_HDRLEN; + p[0] = CHAP_CHALLENGE; + p[1] = ++pcb->chap_server.id; + p[2] = len >> 8; + p[3] = len; +} + +/* + * chap_handle_response - check the response to our challenge. + */ +static void chap_handle_response(ppp_pcb *pcb, int id, + unsigned char *pkt, int len) { + int response_len, ok, mlen; + const unsigned char *response; + unsigned char *outp; + struct pbuf *p; + const char *name = NULL; /* initialized to shut gcc up */ +#if 0 /* UNUSED */ + int (*verifier)(const char *, const char *, int, const struct chap_digest_type *, + const unsigned char *, const unsigned char *, char *, int); +#endif /* UNUSED */ + char rname[MAXNAMELEN+1]; + char message[256]; + + if ((pcb->chap_server.flags & LOWERUP) == 0) + return; + if (id != pcb->chap_server.challenge[PPP_HDRLEN+1] || len < 2) + return; + if (pcb->chap_server.flags & CHALLENGE_VALID) { + response = pkt; + GETCHAR(response_len, pkt); + len -= response_len + 1; /* length of name */ + name = (char *)pkt + response_len; + if (len < 0) + return; + + if (pcb->chap_server.flags & TIMEOUT_PENDING) { + pcb->chap_server.flags &= ~TIMEOUT_PENDING; + UNTIMEOUT(chap_timeout, pcb); + } +#if PPP_REMOTENAME + if (pcb->settings.explicit_remote) { + name = pcb->remote_name; + } else +#endif /* PPP_REMOTENAME */ + { + /* Null terminate and clean remote name. */ + ppp_slprintf(rname, sizeof(rname), "%.*v", len, name); + name = rname; + } + +#if 0 /* UNUSED */ + if (chap_verify_hook) + verifier = chap_verify_hook; + else + verifier = chap_verify_response; + ok = (*verifier)(name, pcb->chap_server.name, id, pcb->chap_server.digest, + pcb->chap_server.challenge + PPP_HDRLEN + CHAP_HDRLEN, + response, pcb->chap_server.message, sizeof(pcb->chap_server.message)); +#endif /* UNUSED */ + ok = chap_verify_response(pcb, name, pcb->chap_server.name, id, pcb->chap_server.digest, + pcb->chap_server.challenge + PPP_HDRLEN + CHAP_HDRLEN, + response, message, sizeof(message)); +#if 0 /* UNUSED */ + if (!ok || !auth_number()) { +#endif /* UNUSED */ + if (!ok) { + pcb->chap_server.flags |= AUTH_FAILED; + ppp_warn(("Peer %q failed CHAP authentication", name)); + } + } else if ((pcb->chap_server.flags & AUTH_DONE) == 0) + return; + + /* send the response */ + mlen = strlen(message); + len = CHAP_HDRLEN + mlen; + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN +len), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = (unsigned char *)p->payload; + MAKEHEADER(outp, PPP_CHAP); + + outp[0] = (pcb->chap_server.flags & AUTH_FAILED)? CHAP_FAILURE: CHAP_SUCCESS; + outp[1] = id; + outp[2] = len >> 8; + outp[3] = len; + if (mlen > 0) + memcpy(outp + CHAP_HDRLEN, message, mlen); + ppp_write(pcb, p); + + if (pcb->chap_server.flags & CHALLENGE_VALID) { + pcb->chap_server.flags &= ~CHALLENGE_VALID; + if (!(pcb->chap_server.flags & AUTH_DONE) && !(pcb->chap_server.flags & AUTH_FAILED)) { + +#if 0 /* UNUSED */ + /* + * Auth is OK, so now we need to check session restrictions + * to ensure everything is OK, but only if we used a + * plugin, and only if we're configured to check. This + * allows us to do PAM checks on PPP servers that + * authenticate against ActiveDirectory, and use AD for + * account info (like when using Winbind integrated with + * PAM). + */ + if (session_mgmt && + session_check(name, NULL, devnam, NULL) == 0) { + pcb->chap_server.flags |= AUTH_FAILED; + ppp_warn(("Peer %q failed CHAP Session verification", name)); + } +#endif /* UNUSED */ + + } + if (pcb->chap_server.flags & AUTH_FAILED) { + auth_peer_fail(pcb, PPP_CHAP); + } else { + if ((pcb->chap_server.flags & AUTH_DONE) == 0) + auth_peer_success(pcb, PPP_CHAP, + pcb->chap_server.digest->code, + name, strlen(name)); + if (pcb->settings.chap_rechallenge_time) { + pcb->chap_server.flags |= TIMEOUT_PENDING; + TIMEOUT(chap_timeout, pcb, + pcb->settings.chap_rechallenge_time); + } + } + pcb->chap_server.flags |= AUTH_DONE; + } +} + +/* + * chap_verify_response - check whether the peer's response matches + * what we think it should be. Returns 1 if it does (authentication + * succeeded), or 0 if it doesn't. + */ +static int chap_verify_response(ppp_pcb *pcb, const char *name, const char *ourname, int id, + const struct chap_digest_type *digest, + const unsigned char *challenge, const unsigned char *response, + char *message, int message_space) { + int ok; + unsigned char secret[MAXSECRETLEN]; + int secret_len; + + /* Get the secret that the peer is supposed to know */ + if (!get_secret(pcb, name, ourname, (char *)secret, &secret_len, 1)) { + ppp_error(("No CHAP secret found for authenticating %q", name)); + return 0; + } + ok = digest->verify_response(pcb, id, name, secret, secret_len, challenge, + response, message, message_space); + memset(secret, 0, sizeof(secret)); + + return ok; +} +#endif /* PPP_SERVER */ + +/* + * chap_respond - Generate and send a response to a challenge. + */ +static void chap_respond(ppp_pcb *pcb, int id, + unsigned char *pkt, int len) { + int clen, nlen; + int secret_len; + struct pbuf *p; + u_char *outp; + char rname[MAXNAMELEN+1]; + char secret[MAXSECRETLEN+1]; + + p = pbuf_alloc(PBUF_RAW, (u16_t)(RESP_MAX_PKTLEN), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + if ((pcb->chap_client.flags & (LOWERUP | AUTH_STARTED)) != (LOWERUP | AUTH_STARTED)) + return; /* not ready */ + if (len < 2 || len < pkt[0] + 1) + return; /* too short */ + clen = pkt[0]; + nlen = len - (clen + 1); + + /* Null terminate and clean remote name. */ + ppp_slprintf(rname, sizeof(rname), "%.*v", nlen, pkt + clen + 1); + +#if PPP_REMOTENAME + /* Microsoft doesn't send their name back in the PPP packet */ + if (pcb->settings.explicit_remote || (pcb->settings.remote_name[0] != 0 && rname[0] == 0)) + strlcpy(rname, pcb->settings.remote_name, sizeof(rname)); +#endif /* PPP_REMOTENAME */ + + /* get secret for authenticating ourselves with the specified host */ + if (!get_secret(pcb, pcb->chap_client.name, rname, secret, &secret_len, 0)) { + secret_len = 0; /* assume null secret if can't find one */ + ppp_warn(("No CHAP secret found for authenticating us to %q", rname)); + } + + outp = (u_char*)p->payload; + MAKEHEADER(outp, PPP_CHAP); + outp += CHAP_HDRLEN; + + pcb->chap_client.digest->make_response(pcb, outp, id, pcb->chap_client.name, pkt, + secret, secret_len, pcb->chap_client.priv); + memset(secret, 0, secret_len); + + clen = *outp; + nlen = strlen(pcb->chap_client.name); + memcpy(outp + clen + 1, pcb->chap_client.name, nlen); + + outp = (u_char*)p->payload + PPP_HDRLEN; + len = CHAP_HDRLEN + clen + 1 + nlen; + outp[0] = CHAP_RESPONSE; + outp[1] = id; + outp[2] = len >> 8; + outp[3] = len; + + pbuf_realloc(p, PPP_HDRLEN + len); + ppp_write(pcb, p); +} + +static void chap_handle_status(ppp_pcb *pcb, int code, int id, + unsigned char *pkt, int len) { + const char *msg = NULL; + LWIP_UNUSED_ARG(id); + + if ((pcb->chap_client.flags & (AUTH_DONE|AUTH_STARTED|LOWERUP)) + != (AUTH_STARTED|LOWERUP)) + return; + pcb->chap_client.flags |= AUTH_DONE; + + if (code == CHAP_SUCCESS) { + /* used for MS-CHAP v2 mutual auth, yuck */ + if (pcb->chap_client.digest->check_success != NULL) { + if (!(*pcb->chap_client.digest->check_success)(pcb, pkt, len, pcb->chap_client.priv)) + code = CHAP_FAILURE; + } else + msg = "CHAP authentication succeeded"; + } else { + if (pcb->chap_client.digest->handle_failure != NULL) + (*pcb->chap_client.digest->handle_failure)(pcb, pkt, len); + else + msg = "CHAP authentication failed"; + } + if (msg) { + if (len > 0) + ppp_info(("%s: %.*v", msg, len, pkt)); + else + ppp_info(("%s", msg)); + } + if (code == CHAP_SUCCESS) + auth_withpeer_success(pcb, PPP_CHAP, pcb->chap_client.digest->code); + else { + pcb->chap_client.flags |= AUTH_FAILED; + ppp_error(("CHAP authentication failed")); + auth_withpeer_fail(pcb, PPP_CHAP); + } +} + +static void chap_input(ppp_pcb *pcb, unsigned char *pkt, int pktlen) { + unsigned char code, id; + int len; + + if (pktlen < CHAP_HDRLEN) + return; + GETCHAR(code, pkt); + GETCHAR(id, pkt); + GETSHORT(len, pkt); + if (len < CHAP_HDRLEN || len > pktlen) + return; + len -= CHAP_HDRLEN; + + switch (code) { + case CHAP_CHALLENGE: + chap_respond(pcb, id, pkt, len); + break; +#if PPP_SERVER + case CHAP_RESPONSE: + chap_handle_response(pcb, id, pkt, len); + break; +#endif /* PPP_SERVER */ + case CHAP_FAILURE: + case CHAP_SUCCESS: + chap_handle_status(pcb, code, id, pkt, len); + break; + default: + break; + } +} + +static void chap_protrej(ppp_pcb *pcb) { + +#if PPP_SERVER + if (pcb->chap_server.flags & TIMEOUT_PENDING) { + pcb->chap_server.flags &= ~TIMEOUT_PENDING; + UNTIMEOUT(chap_timeout, pcb); + } + if (pcb->chap_server.flags & AUTH_STARTED) { + pcb->chap_server.flags = 0; + auth_peer_fail(pcb, PPP_CHAP); + } +#endif /* PPP_SERVER */ + if ((pcb->chap_client.flags & (AUTH_STARTED|AUTH_DONE)) == AUTH_STARTED) { + pcb->chap_client.flags &= ~AUTH_STARTED; + ppp_error(("CHAP authentication failed due to protocol-reject")); + auth_withpeer_fail(pcb, PPP_CHAP); + } +} + +#if PRINTPKT_SUPPORT +/* + * chap_print_pkt - print the contents of a CHAP packet. + */ +static const char* const chap_code_names[] = { + "Challenge", "Response", "Success", "Failure" +}; + +static int chap_print_pkt(const unsigned char *p, int plen, + void (*printer) (void *, const char *, ...), void *arg) { + int code, id, len; + int clen, nlen; + unsigned char x; + + if (plen < CHAP_HDRLEN) + return 0; + GETCHAR(code, p); + GETCHAR(id, p); + GETSHORT(len, p); + if (len < CHAP_HDRLEN || len > plen) + return 0; + + if (code >= 1 && code <= (int)LWIP_ARRAYSIZE(chap_code_names)) + printer(arg, " %s", chap_code_names[code-1]); + else + printer(arg, " code=0x%x", code); + printer(arg, " id=0x%x", id); + len -= CHAP_HDRLEN; + switch (code) { + case CHAP_CHALLENGE: + case CHAP_RESPONSE: + if (len < 1) + break; + clen = p[0]; + if (len < clen + 1) + break; + ++p; + nlen = len - clen - 1; + printer(arg, " <"); + for (; clen > 0; --clen) { + GETCHAR(x, p); + printer(arg, "%.2x", x); + } + printer(arg, ">, name = "); + ppp_print_string(p, nlen, printer, arg); + break; + case CHAP_FAILURE: + case CHAP_SUCCESS: + printer(arg, " "); + ppp_print_string(p, len, printer, arg); + break; + default: + for (clen = len; clen > 0; --clen) { + GETCHAR(x, p); + printer(arg, " %.2x", x); + } + /* no break */ + } + + return len + CHAP_HDRLEN; +} +#endif /* PRINTPKT_SUPPORT */ + +const struct protent chap_protent = { + PPP_CHAP, + chap_init, + chap_input, + chap_protrej, + chap_lowerup, + chap_lowerdown, + NULL, /* open */ + NULL, /* close */ +#if PRINTPKT_SUPPORT + chap_print_pkt, +#endif /* PRINTPKT_SUPPORT */ +#if PPP_DATAINPUT + NULL, /* datainput */ +#endif /* PPP_DATAINPUT */ +#if PRINTPKT_SUPPORT + "CHAP", /* name */ + NULL, /* data_name */ +#endif /* PRINTPKT_SUPPORT */ +#if PPP_OPTIONS + chap_option_list, + NULL, /* check_options */ +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT + NULL, + NULL +#endif /* DEMAND_SUPPORT */ +}; + +#endif /* PPP_SUPPORT && CHAP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/chap_ms.c b/middleware/lwip/src/netif/ppp/chap_ms.c new file mode 100644 index 0000000..0639e7d --- /dev/null +++ b/middleware/lwip/src/netif/ppp/chap_ms.c @@ -0,0 +1,962 @@ +/* + * chap_ms.c - Microsoft MS-CHAP compatible implementation. + * + * Copyright (c) 1995 Eric Rosenquist. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * Modifications by Lauri Pesonen / lpesonen@clinet.fi, april 1997 + * + * Implemented LANManager type password response to MS-CHAP challenges. + * Now pppd provides both NT style and LANMan style blocks, and the + * preferred is set by option "ms-lanman". Default is to use NT. + * The hash text (StdText) was taken from Win95 RASAPI32.DLL. + * + * You should also use DOMAIN\\USERNAME as described in README.MSCHAP80 + */ + +/* + * Modifications by Frank Cusack, frank@google.com, March 2002. + * + * Implemented MS-CHAPv2 functionality, heavily based on sample + * implementation in RFC 2759. Implemented MPPE functionality, + * heavily based on sample implementation in RFC 3079. + * + * Copyright (c) 2002 Google, Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && MSCHAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#if 0 /* UNUSED */ +#include +#include +#include +#include +#include +#include +#include +#endif /* UNUSED */ + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/chap-new.h" +#include "netif/ppp/chap_ms.h" +#include "netif/ppp/pppcrypt.h" +#include "netif/ppp/magic.h" +#if MPPE_SUPPORT +#include "netif/ppp/mppe.h" /* For mppe_sha1_pad*, mppe_set_key() */ +#endif /* MPPE_SUPPORT */ + +#define SHA1_SIGNATURE_SIZE 20 +#define MD4_SIGNATURE_SIZE 16 /* 16 bytes in a MD4 message digest */ +#define MAX_NT_PASSWORD 256 /* Max (Unicode) chars in an NT pass */ + +#define MS_CHAP_RESPONSE_LEN 49 /* Response length for MS-CHAP */ +#define MS_CHAP2_RESPONSE_LEN 49 /* Response length for MS-CHAPv2 */ +#define MS_AUTH_RESPONSE_LENGTH 40 /* MS-CHAPv2 authenticator response, */ + /* as ASCII */ + +/* Error codes for MS-CHAP failure messages. */ +#define MS_CHAP_ERROR_RESTRICTED_LOGON_HOURS 646 +#define MS_CHAP_ERROR_ACCT_DISABLED 647 +#define MS_CHAP_ERROR_PASSWD_EXPIRED 648 +#define MS_CHAP_ERROR_NO_DIALIN_PERMISSION 649 +#define MS_CHAP_ERROR_AUTHENTICATION_FAILURE 691 +#define MS_CHAP_ERROR_CHANGING_PASSWORD 709 + +/* + * Offsets within the response field for MS-CHAP + */ +#define MS_CHAP_LANMANRESP 0 +#define MS_CHAP_LANMANRESP_LEN 24 +#define MS_CHAP_NTRESP 24 +#define MS_CHAP_NTRESP_LEN 24 +#define MS_CHAP_USENT 48 + +/* + * Offsets within the response field for MS-CHAP2 + */ +#define MS_CHAP2_PEER_CHALLENGE 0 +#define MS_CHAP2_PEER_CHAL_LEN 16 +#define MS_CHAP2_RESERVED_LEN 8 +#define MS_CHAP2_NTRESP 24 +#define MS_CHAP2_NTRESP_LEN 24 +#define MS_CHAP2_FLAGS 48 + +#if MPPE_SUPPORT +#if 0 /* UNUSED */ +/* These values are the RADIUS attribute values--see RFC 2548. */ +#define MPPE_ENC_POL_ENC_ALLOWED 1 +#define MPPE_ENC_POL_ENC_REQUIRED 2 +#define MPPE_ENC_TYPES_RC4_40 2 +#define MPPE_ENC_TYPES_RC4_128 4 + +/* used by plugins (using above values) */ +extern void set_mppe_enc_types(int, int); +#endif /* UNUSED */ +#endif /* MPPE_SUPPORT */ + +/* Are we the authenticator or authenticatee? For MS-CHAPv2 key derivation. */ +#define MS_CHAP2_AUTHENTICATEE 0 +#define MS_CHAP2_AUTHENTICATOR 1 + +static void ascii2unicode (const char[], int, u_char[]); +static void NTPasswordHash (u_char *, int, u_char[MD4_SIGNATURE_SIZE]); +static void ChallengeResponse (const u_char *, const u_char *, u_char[24]); +static void ChallengeHash (const u_char[16], const u_char *, const char *, u_char[8]); +static void ChapMS_NT (const u_char *, const char *, int, u_char[24]); +static void ChapMS2_NT (const u_char *, const u_char[16], const char *, const char *, int, + u_char[24]); +static void GenerateAuthenticatorResponsePlain + (const char*, int, u_char[24], const u_char[16], const u_char *, + const char *, u_char[41]); +#ifdef MSLANMAN +static void ChapMS_LANMan (u_char *, char *, int, u_char *); +#endif + +static void GenerateAuthenticatorResponse(const u_char PasswordHashHash[MD4_SIGNATURE_SIZE], + u_char NTResponse[24], const u_char PeerChallenge[16], + const u_char *rchallenge, const char *username, + u_char authResponse[MS_AUTH_RESPONSE_LENGTH+1]); + +#if MPPE_SUPPORT +static void Set_Start_Key (ppp_pcb *pcb, const u_char *, const char *, int); +static void SetMasterKeys (ppp_pcb *pcb, const char *, int, u_char[24], int); +#endif /* MPPE_SUPPORT */ + +static void ChapMS (ppp_pcb *pcb, const u_char *, const char *, int, u_char *); +static void ChapMS2 (ppp_pcb *pcb, const u_char *, const u_char *, const char *, const char *, int, + u_char *, u_char[MS_AUTH_RESPONSE_LENGTH+1], int); + +#ifdef MSLANMAN +bool ms_lanman = 0; /* Use LanMan password instead of NT */ + /* Has meaning only with MS-CHAP challenges */ +#endif + +#if MPPE_SUPPORT +#ifdef DEBUGMPPEKEY +/* For MPPE debug */ +/* Use "[]|}{?/><,`!2&&(" (sans quotes) for RFC 3079 MS-CHAPv2 test value */ +static char *mschap_challenge = NULL; +/* Use "!@\#$%^&*()_+:3|~" (sans quotes, backslash is to escape #) for ... */ +static char *mschap2_peer_challenge = NULL; +#endif + +#include "netif/ppp/fsm.h" /* Need to poke MPPE options */ +#include "netif/ppp/ccp.h" +#endif /* MPPE_SUPPORT */ + +#if PPP_OPTIONS +/* + * Command-line options. + */ +static option_t chapms_option_list[] = { +#ifdef MSLANMAN + { "ms-lanman", o_bool, &ms_lanman, + "Use LanMan passwd when using MS-CHAP", 1 }, +#endif +#ifdef DEBUGMPPEKEY + { "mschap-challenge", o_string, &mschap_challenge, + "specify CHAP challenge" }, + { "mschap2-peer-challenge", o_string, &mschap2_peer_challenge, + "specify CHAP peer challenge" }, +#endif + { NULL } +}; +#endif /* PPP_OPTIONS */ + +#if PPP_SERVER +/* + * chapms_generate_challenge - generate a challenge for MS-CHAP. + * For MS-CHAP the challenge length is fixed at 8 bytes. + * The length goes in challenge[0] and the actual challenge starts + * at challenge[1]. + */ +static void chapms_generate_challenge(ppp_pcb *pcb, unsigned char *challenge) { + LWIP_UNUSED_ARG(pcb); + + *challenge++ = 8; +#ifdef DEBUGMPPEKEY + if (mschap_challenge && strlen(mschap_challenge) == 8) + memcpy(challenge, mschap_challenge, 8); + else +#endif + magic_random_bytes(challenge, 8); +} + +static void chapms2_generate_challenge(ppp_pcb *pcb, unsigned char *challenge) { + LWIP_UNUSED_ARG(pcb); + + *challenge++ = 16; +#ifdef DEBUGMPPEKEY + if (mschap_challenge && strlen(mschap_challenge) == 16) + memcpy(challenge, mschap_challenge, 16); + else +#endif + magic_random_bytes(challenge, 16); +} + +static int chapms_verify_response(ppp_pcb *pcb, int id, const char *name, + const unsigned char *secret, int secret_len, + const unsigned char *challenge, const unsigned char *response, + char *message, int message_space) { + unsigned char md[MS_CHAP_RESPONSE_LEN]; + int diff; + int challenge_len, response_len; + LWIP_UNUSED_ARG(id); + LWIP_UNUSED_ARG(name); + + challenge_len = *challenge++; /* skip length, is 8 */ + response_len = *response++; + if (response_len != MS_CHAP_RESPONSE_LEN) + goto bad; + +#ifndef MSLANMAN + if (!response[MS_CHAP_USENT]) { + /* Should really propagate this into the error packet. */ + ppp_notice(("Peer request for LANMAN auth not supported")); + goto bad; + } +#endif + + /* Generate the expected response. */ + ChapMS(pcb, (const u_char *)challenge, (const char *)secret, secret_len, md); + +#ifdef MSLANMAN + /* Determine which part of response to verify against */ + if (!response[MS_CHAP_USENT]) + diff = memcmp(&response[MS_CHAP_LANMANRESP], + &md[MS_CHAP_LANMANRESP], MS_CHAP_LANMANRESP_LEN); + else +#endif + diff = memcmp(&response[MS_CHAP_NTRESP], &md[MS_CHAP_NTRESP], + MS_CHAP_NTRESP_LEN); + + if (diff == 0) { + ppp_slprintf(message, message_space, "Access granted"); + return 1; + } + + bad: + /* See comments below for MS-CHAP V2 */ + ppp_slprintf(message, message_space, "E=691 R=1 C=%0.*B V=0", + challenge_len, challenge); + return 0; +} + +static int chapms2_verify_response(ppp_pcb *pcb, int id, const char *name, + const unsigned char *secret, int secret_len, + const unsigned char *challenge, const unsigned char *response, + char *message, int message_space) { + unsigned char md[MS_CHAP2_RESPONSE_LEN]; + char saresponse[MS_AUTH_RESPONSE_LENGTH+1]; + int challenge_len, response_len; + LWIP_UNUSED_ARG(id); + + challenge_len = *challenge++; /* skip length, is 16 */ + response_len = *response++; + if (response_len != MS_CHAP2_RESPONSE_LEN) + goto bad; /* not even the right length */ + + /* Generate the expected response and our mutual auth. */ + ChapMS2(pcb, (const u_char*)challenge, (const u_char*)&response[MS_CHAP2_PEER_CHALLENGE], name, + (const char *)secret, secret_len, md, + (unsigned char *)saresponse, MS_CHAP2_AUTHENTICATOR); + + /* compare MDs and send the appropriate status */ + /* + * Per RFC 2759, success message must be formatted as + * "S= M=" + * where + * is the Authenticator Response (mutual auth) + * is a text message + * + * However, some versions of Windows (win98 tested) do not know + * about the M= part (required per RFC 2759) and flag + * it as an error (reported incorrectly as an encryption error + * to the user). Since the RFC requires it, and it can be + * useful information, we supply it if the peer is a conforming + * system. Luckily (?), win98 sets the Flags field to 0x04 + * (contrary to RFC requirements) so we can use that to + * distinguish between conforming and non-conforming systems. + * + * Special thanks to Alex Swiridov for + * help debugging this. + */ + if (memcmp(&md[MS_CHAP2_NTRESP], &response[MS_CHAP2_NTRESP], + MS_CHAP2_NTRESP_LEN) == 0) { + if (response[MS_CHAP2_FLAGS]) + ppp_slprintf(message, message_space, "S=%s", saresponse); + else + ppp_slprintf(message, message_space, "S=%s M=%s", + saresponse, "Access granted"); + return 1; + } + + bad: + /* + * Failure message must be formatted as + * "E=e R=r C=c V=v M=m" + * where + * e = error code (we use 691, ERROR_AUTHENTICATION_FAILURE) + * r = retry (we use 1, ok to retry) + * c = challenge to use for next response, we reuse previous + * v = Change Password version supported, we use 0 + * m = text message + * + * The M=m part is only for MS-CHAPv2. Neither win2k nor + * win98 (others untested) display the message to the user anyway. + * They also both ignore the E=e code. + * + * Note that it's safe to reuse the same challenge as we don't + * actually accept another response based on the error message + * (and no clients try to resend a response anyway). + * + * Basically, this whole bit is useless code, even the small + * implementation here is only because of overspecification. + */ + ppp_slprintf(message, message_space, "E=691 R=1 C=%0.*B V=0 M=%s", + challenge_len, challenge, "Access denied"); + return 0; +} +#endif /* PPP_SERVER */ + +static void chapms_make_response(ppp_pcb *pcb, unsigned char *response, int id, const char *our_name, + const unsigned char *challenge, const char *secret, int secret_len, + unsigned char *private_) { + LWIP_UNUSED_ARG(id); + LWIP_UNUSED_ARG(our_name); + LWIP_UNUSED_ARG(private_); + challenge++; /* skip length, should be 8 */ + *response++ = MS_CHAP_RESPONSE_LEN; + ChapMS(pcb, challenge, secret, secret_len, response); +} + +static void chapms2_make_response(ppp_pcb *pcb, unsigned char *response, int id, const char *our_name, + const unsigned char *challenge, const char *secret, int secret_len, + unsigned char *private_) { + LWIP_UNUSED_ARG(id); + challenge++; /* skip length, should be 16 */ + *response++ = MS_CHAP2_RESPONSE_LEN; + ChapMS2(pcb, challenge, +#ifdef DEBUGMPPEKEY + mschap2_peer_challenge, +#else + NULL, +#endif + our_name, secret, secret_len, response, private_, + MS_CHAP2_AUTHENTICATEE); +} + +static int chapms2_check_success(ppp_pcb *pcb, unsigned char *msg, int len, unsigned char *private_) { + LWIP_UNUSED_ARG(pcb); + + if ((len < MS_AUTH_RESPONSE_LENGTH + 2) || + strncmp((char *)msg, "S=", 2) != 0) { + /* Packet does not start with "S=" */ + ppp_error(("MS-CHAPv2 Success packet is badly formed.")); + return 0; + } + msg += 2; + len -= 2; + if (len < MS_AUTH_RESPONSE_LENGTH + || memcmp(msg, private_, MS_AUTH_RESPONSE_LENGTH)) { + /* Authenticator Response did not match expected. */ + ppp_error(("MS-CHAPv2 mutual authentication failed.")); + return 0; + } + /* Authenticator Response matches. */ + msg += MS_AUTH_RESPONSE_LENGTH; /* Eat it */ + len -= MS_AUTH_RESPONSE_LENGTH; + if ((len >= 3) && !strncmp((char *)msg, " M=", 3)) { + msg += 3; /* Eat the delimiter */ + } else if (len) { + /* Packet has extra text which does not begin " M=" */ + ppp_error(("MS-CHAPv2 Success packet is badly formed.")); + return 0; + } + return 1; +} + +static void chapms_handle_failure(ppp_pcb *pcb, unsigned char *inp, int len) { + int err; + const char *p; + char msg[64]; + LWIP_UNUSED_ARG(pcb); + + /* We want a null-terminated string for strxxx(). */ + len = LWIP_MIN(len, 63); + MEMCPY(msg, inp, len); + msg[len] = 0; + p = msg; + + /* + * Deal with MS-CHAP formatted failure messages; just print the + * M= part (if any). For MS-CHAP we're not really supposed + * to use M=, but it shouldn't hurt. See + * chapms[2]_verify_response. + */ + if (!strncmp(p, "E=", 2)) + err = strtol(p+2, NULL, 10); /* Remember the error code. */ + else + goto print_msg; /* Message is badly formatted. */ + + if (len && ((p = strstr(p, " M=")) != NULL)) { + /* M= field found. */ + p += 3; + } else { + /* No M=; use the error code. */ + switch (err) { + case MS_CHAP_ERROR_RESTRICTED_LOGON_HOURS: + p = "E=646 Restricted logon hours"; + break; + + case MS_CHAP_ERROR_ACCT_DISABLED: + p = "E=647 Account disabled"; + break; + + case MS_CHAP_ERROR_PASSWD_EXPIRED: + p = "E=648 Password expired"; + break; + + case MS_CHAP_ERROR_NO_DIALIN_PERMISSION: + p = "E=649 No dialin permission"; + break; + + case MS_CHAP_ERROR_AUTHENTICATION_FAILURE: + p = "E=691 Authentication failure"; + break; + + case MS_CHAP_ERROR_CHANGING_PASSWORD: + /* Should never see this, we don't support Change Password. */ + p = "E=709 Error changing password"; + break; + + default: + ppp_error(("Unknown MS-CHAP authentication failure: %.*v", + len, inp)); + return; + } + } +print_msg: + if (p != NULL) + ppp_error(("MS-CHAP authentication failed: %v", p)); +} + +static void ChallengeResponse(const u_char *challenge, + const u_char PasswordHash[MD4_SIGNATURE_SIZE], + u_char response[24]) { + u_char ZPasswordHash[21]; + lwip_des_context des; + u_char des_key[8]; + + BZERO(ZPasswordHash, sizeof(ZPasswordHash)); + MEMCPY(ZPasswordHash, PasswordHash, MD4_SIGNATURE_SIZE); + +#if 0 + dbglog("ChallengeResponse - ZPasswordHash %.*B", + sizeof(ZPasswordHash), ZPasswordHash); +#endif + + pppcrypt_56_to_64_bit_key(ZPasswordHash + 0, des_key); + lwip_des_init(&des); + lwip_des_setkey_enc(&des, des_key); + lwip_des_crypt_ecb(&des, challenge, response +0); + lwip_des_free(&des); + + pppcrypt_56_to_64_bit_key(ZPasswordHash + 7, des_key); + lwip_des_init(&des); + lwip_des_setkey_enc(&des, des_key); + lwip_des_crypt_ecb(&des, challenge, response +8); + lwip_des_free(&des); + + pppcrypt_56_to_64_bit_key(ZPasswordHash + 14, des_key); + lwip_des_init(&des); + lwip_des_setkey_enc(&des, des_key); + lwip_des_crypt_ecb(&des, challenge, response +16); + lwip_des_free(&des); + +#if 0 + dbglog("ChallengeResponse - response %.24B", response); +#endif +} + +static void ChallengeHash(const u_char PeerChallenge[16], const u_char *rchallenge, + const char *username, u_char Challenge[8]) { + lwip_sha1_context sha1Context; + u_char sha1Hash[SHA1_SIGNATURE_SIZE]; + const char *user; + + /* remove domain from "domain\username" */ + if ((user = strrchr(username, '\\')) != NULL) + ++user; + else + user = username; + + lwip_sha1_init(&sha1Context); + lwip_sha1_starts(&sha1Context); + lwip_sha1_update(&sha1Context, PeerChallenge, 16); + lwip_sha1_update(&sha1Context, rchallenge, 16); + lwip_sha1_update(&sha1Context, (const unsigned char*)user, strlen(user)); + lwip_sha1_finish(&sha1Context, sha1Hash); + lwip_sha1_free(&sha1Context); + + MEMCPY(Challenge, sha1Hash, 8); +} + +/* + * Convert the ASCII version of the password to Unicode. + * This implicitly supports 8-bit ISO8859/1 characters. + * This gives us the little-endian representation, which + * is assumed by all M$ CHAP RFCs. (Unicode byte ordering + * is machine-dependent.) + */ +static void ascii2unicode(const char ascii[], int ascii_len, u_char unicode[]) { + int i; + + BZERO(unicode, ascii_len * 2); + for (i = 0; i < ascii_len; i++) + unicode[i * 2] = (u_char) ascii[i]; +} + +static void NTPasswordHash(u_char *secret, int secret_len, u_char hash[MD4_SIGNATURE_SIZE]) { + lwip_md4_context md4Context; + + lwip_md4_init(&md4Context); + lwip_md4_starts(&md4Context); + lwip_md4_update(&md4Context, secret, secret_len); + lwip_md4_finish(&md4Context, hash); + lwip_md4_free(&md4Context); +} + +static void ChapMS_NT(const u_char *rchallenge, const char *secret, int secret_len, + u_char NTResponse[24]) { + u_char unicodePassword[MAX_NT_PASSWORD * 2]; + u_char PasswordHash[MD4_SIGNATURE_SIZE]; + + /* Hash the Unicode version of the secret (== password). */ + ascii2unicode(secret, secret_len, unicodePassword); + NTPasswordHash(unicodePassword, secret_len * 2, PasswordHash); + + ChallengeResponse(rchallenge, PasswordHash, NTResponse); +} + +static void ChapMS2_NT(const u_char *rchallenge, const u_char PeerChallenge[16], const char *username, + const char *secret, int secret_len, u_char NTResponse[24]) { + u_char unicodePassword[MAX_NT_PASSWORD * 2]; + u_char PasswordHash[MD4_SIGNATURE_SIZE]; + u_char Challenge[8]; + + ChallengeHash(PeerChallenge, rchallenge, username, Challenge); + + /* Hash the Unicode version of the secret (== password). */ + ascii2unicode(secret, secret_len, unicodePassword); + NTPasswordHash(unicodePassword, secret_len * 2, PasswordHash); + + ChallengeResponse(Challenge, PasswordHash, NTResponse); +} + +#ifdef MSLANMAN +static u_char *StdText = (u_char *)"KGS!@#$%"; /* key from rasapi32.dll */ + +static void ChapMS_LANMan(u_char *rchallenge, char *secret, int secret_len, + unsigned char *response) { + int i; + u_char UcasePassword[MAX_NT_PASSWORD]; /* max is actually 14 */ + u_char PasswordHash[MD4_SIGNATURE_SIZE]; + lwip_des_context des; + u_char des_key[8]; + + /* LANMan password is case insensitive */ + BZERO(UcasePassword, sizeof(UcasePassword)); + for (i = 0; i < secret_len; i++) + UcasePassword[i] = (u_char)toupper(secret[i]); + + pppcrypt_56_to_64_bit_key(UcasePassword +0, des_key); + lwip_des_init(&des); + lwip_des_setkey_enc(&des, des_key); + lwip_des_crypt_ecb(&des, StdText, PasswordHash +0); + lwip_des_free(&des); + + pppcrypt_56_to_64_bit_key(UcasePassword +7, des_key); + lwip_des_init(&des); + lwip_des_setkey_enc(&des, des_key); + lwip_des_crypt_ecb(&des, StdText, PasswordHash +8); + lwip_des_free(&des); + + ChallengeResponse(rchallenge, PasswordHash, &response[MS_CHAP_LANMANRESP]); +} +#endif + + +static void GenerateAuthenticatorResponse(const u_char PasswordHashHash[MD4_SIGNATURE_SIZE], + u_char NTResponse[24], const u_char PeerChallenge[16], + const u_char *rchallenge, const char *username, + u_char authResponse[MS_AUTH_RESPONSE_LENGTH+1]) { + /* + * "Magic" constants used in response generation, from RFC 2759. + */ + static const u_char Magic1[39] = /* "Magic server to client signing constant" */ + { 0x4D, 0x61, 0x67, 0x69, 0x63, 0x20, 0x73, 0x65, 0x72, 0x76, + 0x65, 0x72, 0x20, 0x74, 0x6F, 0x20, 0x63, 0x6C, 0x69, 0x65, + 0x6E, 0x74, 0x20, 0x73, 0x69, 0x67, 0x6E, 0x69, 0x6E, 0x67, + 0x20, 0x63, 0x6F, 0x6E, 0x73, 0x74, 0x61, 0x6E, 0x74 }; + static const u_char Magic2[41] = /* "Pad to make it do more than one iteration" */ + { 0x50, 0x61, 0x64, 0x20, 0x74, 0x6F, 0x20, 0x6D, 0x61, 0x6B, + 0x65, 0x20, 0x69, 0x74, 0x20, 0x64, 0x6F, 0x20, 0x6D, 0x6F, + 0x72, 0x65, 0x20, 0x74, 0x68, 0x61, 0x6E, 0x20, 0x6F, 0x6E, + 0x65, 0x20, 0x69, 0x74, 0x65, 0x72, 0x61, 0x74, 0x69, 0x6F, + 0x6E }; + + int i; + lwip_sha1_context sha1Context; + u_char Digest[SHA1_SIGNATURE_SIZE]; + u_char Challenge[8]; + + lwip_sha1_init(&sha1Context); + lwip_sha1_starts(&sha1Context); + lwip_sha1_update(&sha1Context, PasswordHashHash, MD4_SIGNATURE_SIZE); + lwip_sha1_update(&sha1Context, NTResponse, 24); + lwip_sha1_update(&sha1Context, Magic1, sizeof(Magic1)); + lwip_sha1_finish(&sha1Context, Digest); + lwip_sha1_free(&sha1Context); + + ChallengeHash(PeerChallenge, rchallenge, username, Challenge); + + lwip_sha1_init(&sha1Context); + lwip_sha1_starts(&sha1Context); + lwip_sha1_update(&sha1Context, Digest, sizeof(Digest)); + lwip_sha1_update(&sha1Context, Challenge, sizeof(Challenge)); + lwip_sha1_update(&sha1Context, Magic2, sizeof(Magic2)); + lwip_sha1_finish(&sha1Context, Digest); + lwip_sha1_free(&sha1Context); + + /* Convert to ASCII hex string. */ + for (i = 0; i < LWIP_MAX((MS_AUTH_RESPONSE_LENGTH / 2), (int)sizeof(Digest)); i++) + sprintf((char *)&authResponse[i * 2], "%02X", Digest[i]); +} + + +static void GenerateAuthenticatorResponsePlain( + const char *secret, int secret_len, + u_char NTResponse[24], const u_char PeerChallenge[16], + const u_char *rchallenge, const char *username, + u_char authResponse[MS_AUTH_RESPONSE_LENGTH+1]) { + u_char unicodePassword[MAX_NT_PASSWORD * 2]; + u_char PasswordHash[MD4_SIGNATURE_SIZE]; + u_char PasswordHashHash[MD4_SIGNATURE_SIZE]; + + /* Hash (x2) the Unicode version of the secret (== password). */ + ascii2unicode(secret, secret_len, unicodePassword); + NTPasswordHash(unicodePassword, secret_len * 2, PasswordHash); + NTPasswordHash(PasswordHash, sizeof(PasswordHash), + PasswordHashHash); + + GenerateAuthenticatorResponse(PasswordHashHash, NTResponse, PeerChallenge, + rchallenge, username, authResponse); +} + + +#if MPPE_SUPPORT +/* + * Set mppe_xxxx_key from MS-CHAP credentials. (see RFC 3079) + */ +static void Set_Start_Key(ppp_pcb *pcb, const u_char *rchallenge, const char *secret, int secret_len) { + u_char unicodePassword[MAX_NT_PASSWORD * 2]; + u_char PasswordHash[MD4_SIGNATURE_SIZE]; + u_char PasswordHashHash[MD4_SIGNATURE_SIZE]; + lwip_sha1_context sha1Context; + u_char Digest[SHA1_SIGNATURE_SIZE]; /* >= MPPE_MAX_KEY_LEN */ + + /* Hash (x2) the Unicode version of the secret (== password). */ + ascii2unicode(secret, secret_len, unicodePassword); + NTPasswordHash(unicodePassword, secret_len * 2, PasswordHash); + NTPasswordHash(PasswordHash, sizeof(PasswordHash), PasswordHashHash); + + lwip_sha1_init(&sha1Context); + lwip_sha1_starts(&sha1Context); + lwip_sha1_update(&sha1Context, PasswordHashHash, MD4_SIGNATURE_SIZE); + lwip_sha1_update(&sha1Context, PasswordHashHash, MD4_SIGNATURE_SIZE); + lwip_sha1_update(&sha1Context, rchallenge, 8); + lwip_sha1_finish(&sha1Context, Digest); + lwip_sha1_free(&sha1Context); + + /* Same key in both directions. */ + mppe_set_key(pcb, &pcb->mppe_comp, Digest); + mppe_set_key(pcb, &pcb->mppe_decomp, Digest); + + pcb->mppe_keys_set = 1; +} + +/* + * Set mppe_xxxx_key from MS-CHAPv2 credentials. (see RFC 3079) + */ +static void SetMasterKeys(ppp_pcb *pcb, const char *secret, int secret_len, u_char NTResponse[24], int IsServer) { + u_char unicodePassword[MAX_NT_PASSWORD * 2]; + u_char PasswordHash[MD4_SIGNATURE_SIZE]; + u_char PasswordHashHash[MD4_SIGNATURE_SIZE]; + lwip_sha1_context sha1Context; + u_char MasterKey[SHA1_SIGNATURE_SIZE]; /* >= MPPE_MAX_KEY_LEN */ + u_char Digest[SHA1_SIGNATURE_SIZE]; /* >= MPPE_MAX_KEY_LEN */ + const u_char *s; + + /* "This is the MPPE Master Key" */ + static const u_char Magic1[27] = + { 0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x74, + 0x68, 0x65, 0x20, 0x4d, 0x50, 0x50, 0x45, 0x20, 0x4d, + 0x61, 0x73, 0x74, 0x65, 0x72, 0x20, 0x4b, 0x65, 0x79 }; + /* "On the client side, this is the send key; " + "on the server side, it is the receive key." */ + static const u_char Magic2[84] = + { 0x4f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6c, 0x69, + 0x65, 0x6e, 0x74, 0x20, 0x73, 0x69, 0x64, 0x65, 0x2c, 0x20, + 0x74, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, + 0x65, 0x20, 0x73, 0x65, 0x6e, 0x64, 0x20, 0x6b, 0x65, 0x79, + 0x3b, 0x20, 0x6f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x73, + 0x65, 0x72, 0x76, 0x65, 0x72, 0x20, 0x73, 0x69, 0x64, 0x65, + 0x2c, 0x20, 0x69, 0x74, 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, + 0x65, 0x20, 0x72, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x20, + 0x6b, 0x65, 0x79, 0x2e }; + /* "On the client side, this is the receive key; " + "on the server side, it is the send key." */ + static const u_char Magic3[84] = + { 0x4f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6c, 0x69, + 0x65, 0x6e, 0x74, 0x20, 0x73, 0x69, 0x64, 0x65, 0x2c, 0x20, + 0x74, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x74, 0x68, + 0x65, 0x20, 0x72, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x20, + 0x6b, 0x65, 0x79, 0x3b, 0x20, 0x6f, 0x6e, 0x20, 0x74, 0x68, + 0x65, 0x20, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x20, 0x73, + 0x69, 0x64, 0x65, 0x2c, 0x20, 0x69, 0x74, 0x20, 0x69, 0x73, + 0x20, 0x74, 0x68, 0x65, 0x20, 0x73, 0x65, 0x6e, 0x64, 0x20, + 0x6b, 0x65, 0x79, 0x2e }; + + /* Hash (x2) the Unicode version of the secret (== password). */ + ascii2unicode(secret, secret_len, unicodePassword); + NTPasswordHash(unicodePassword, secret_len * 2, PasswordHash); + NTPasswordHash(PasswordHash, sizeof(PasswordHash), PasswordHashHash); + + lwip_sha1_init(&sha1Context); + lwip_sha1_starts(&sha1Context); + lwip_sha1_update(&sha1Context, PasswordHashHash, MD4_SIGNATURE_SIZE); + lwip_sha1_update(&sha1Context, NTResponse, 24); + lwip_sha1_update(&sha1Context, Magic1, sizeof(Magic1)); + lwip_sha1_finish(&sha1Context, MasterKey); + lwip_sha1_free(&sha1Context); + + /* + * generate send key + */ + if (IsServer) + s = Magic3; + else + s = Magic2; + lwip_sha1_init(&sha1Context); + lwip_sha1_starts(&sha1Context); + lwip_sha1_update(&sha1Context, MasterKey, 16); + lwip_sha1_update(&sha1Context, mppe_sha1_pad1, SHA1_PAD_SIZE); + lwip_sha1_update(&sha1Context, s, 84); + lwip_sha1_update(&sha1Context, mppe_sha1_pad2, SHA1_PAD_SIZE); + lwip_sha1_finish(&sha1Context, Digest); + lwip_sha1_free(&sha1Context); + + mppe_set_key(pcb, &pcb->mppe_comp, Digest); + + /* + * generate recv key + */ + if (IsServer) + s = Magic2; + else + s = Magic3; + lwip_sha1_init(&sha1Context); + lwip_sha1_starts(&sha1Context); + lwip_sha1_update(&sha1Context, MasterKey, 16); + lwip_sha1_update(&sha1Context, mppe_sha1_pad1, SHA1_PAD_SIZE); + lwip_sha1_update(&sha1Context, s, 84); + lwip_sha1_update(&sha1Context, mppe_sha1_pad2, SHA1_PAD_SIZE); + lwip_sha1_finish(&sha1Context, Digest); + lwip_sha1_free(&sha1Context); + + mppe_set_key(pcb, &pcb->mppe_decomp, Digest); + + pcb->mppe_keys_set = 1; +} + +#endif /* MPPE_SUPPORT */ + + +static void ChapMS(ppp_pcb *pcb, const u_char *rchallenge, const char *secret, int secret_len, + unsigned char *response) { +#if !MPPE_SUPPORT + LWIP_UNUSED_ARG(pcb); +#endif /* !MPPE_SUPPORT */ + BZERO(response, MS_CHAP_RESPONSE_LEN); + + ChapMS_NT(rchallenge, secret, secret_len, &response[MS_CHAP_NTRESP]); + +#ifdef MSLANMAN + ChapMS_LANMan(rchallenge, secret, secret_len, + &response[MS_CHAP_LANMANRESP]); + + /* preferred method is set by option */ + response[MS_CHAP_USENT] = !ms_lanman; +#else + response[MS_CHAP_USENT] = 1; +#endif + +#if MPPE_SUPPORT + Set_Start_Key(pcb, rchallenge, secret, secret_len); +#endif /* MPPE_SUPPORT */ +} + + +/* + * If PeerChallenge is NULL, one is generated and the PeerChallenge + * field of response is filled in. Call this way when generating a response. + * If PeerChallenge is supplied, it is copied into the PeerChallenge field. + * Call this way when verifying a response (or debugging). + * Do not call with PeerChallenge = response. + * + * The PeerChallenge field of response is then used for calculation of the + * Authenticator Response. + */ +static void ChapMS2(ppp_pcb *pcb, const u_char *rchallenge, const u_char *PeerChallenge, + const char *user, const char *secret, int secret_len, unsigned char *response, + u_char authResponse[], int authenticator) { + /* ARGSUSED */ + LWIP_UNUSED_ARG(authenticator); +#if !MPPE_SUPPORT + LWIP_UNUSED_ARG(pcb); +#endif /* !MPPE_SUPPORT */ + + BZERO(response, MS_CHAP2_RESPONSE_LEN); + + /* Generate the Peer-Challenge if requested, or copy it if supplied. */ + if (!PeerChallenge) + magic_random_bytes(&response[MS_CHAP2_PEER_CHALLENGE], MS_CHAP2_PEER_CHAL_LEN); + else + MEMCPY(&response[MS_CHAP2_PEER_CHALLENGE], PeerChallenge, + MS_CHAP2_PEER_CHAL_LEN); + + /* Generate the NT-Response */ + ChapMS2_NT(rchallenge, &response[MS_CHAP2_PEER_CHALLENGE], user, + secret, secret_len, &response[MS_CHAP2_NTRESP]); + + /* Generate the Authenticator Response. */ + GenerateAuthenticatorResponsePlain(secret, secret_len, + &response[MS_CHAP2_NTRESP], + &response[MS_CHAP2_PEER_CHALLENGE], + rchallenge, user, authResponse); + +#if MPPE_SUPPORT + SetMasterKeys(pcb, secret, secret_len, + &response[MS_CHAP2_NTRESP], authenticator); +#endif /* MPPE_SUPPORT */ +} + +#if 0 /* UNUSED */ +#if MPPE_SUPPORT +/* + * Set MPPE options from plugins. + */ +void set_mppe_enc_types(int policy, int types) { + /* Early exit for unknown policies. */ + if (policy != MPPE_ENC_POL_ENC_ALLOWED || + policy != MPPE_ENC_POL_ENC_REQUIRED) + return; + + /* Don't modify MPPE if it's optional and wasn't already configured. */ + if (policy == MPPE_ENC_POL_ENC_ALLOWED && !ccp_wantoptions[0].mppe) + return; + + /* + * Disable undesirable encryption types. Note that we don't ENABLE + * any encryption types, to avoid overriding manual configuration. + */ + switch(types) { + case MPPE_ENC_TYPES_RC4_40: + ccp_wantoptions[0].mppe &= ~MPPE_OPT_128; /* disable 128-bit */ + break; + case MPPE_ENC_TYPES_RC4_128: + ccp_wantoptions[0].mppe &= ~MPPE_OPT_40; /* disable 40-bit */ + break; + default: + break; + } +} +#endif /* MPPE_SUPPORT */ +#endif /* UNUSED */ + +const struct chap_digest_type chapms_digest = { + CHAP_MICROSOFT, /* code */ +#if PPP_SERVER + chapms_generate_challenge, + chapms_verify_response, +#endif /* PPP_SERVER */ + chapms_make_response, + NULL, /* check_success */ + chapms_handle_failure, +}; + +const struct chap_digest_type chapms2_digest = { + CHAP_MICROSOFT_V2, /* code */ +#if PPP_SERVER + chapms2_generate_challenge, + chapms2_verify_response, +#endif /* PPP_SERVER */ + chapms2_make_response, + chapms2_check_success, + chapms_handle_failure, +}; + +#endif /* PPP_SUPPORT && MSCHAP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/demand.c b/middleware/lwip/src/netif/ppp/demand.c new file mode 100644 index 0000000..26c6c30 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/demand.c @@ -0,0 +1,465 @@ +/* + * demand.c - Support routines for demand-dialling. + * + * Copyright (c) 1996-2002 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && DEMAND_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef PPP_FILTER +#include +#endif + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/fsm.h" +#include "netif/ppp/ipcp.h" +#include "netif/ppp/lcp.h" + +char *frame; +int framelen; +int framemax; +int escape_flag; +int flush_flag; +int fcs; + +struct packet { + int length; + struct packet *next; + unsigned char data[1]; +}; + +struct packet *pend_q; +struct packet *pend_qtail; + +static int active_packet (unsigned char *, int); + +/* + * demand_conf - configure the interface for doing dial-on-demand. + */ +void +demand_conf() +{ + int i; + const struct protent *protp; + +/* framemax = lcp_allowoptions[0].mru; + if (framemax < PPP_MRU) */ + framemax = PPP_MRU; + framemax += PPP_HDRLEN + PPP_FCSLEN; + frame = malloc(framemax); + if (frame == NULL) + novm("demand frame"); + framelen = 0; + pend_q = NULL; + escape_flag = 0; + flush_flag = 0; + fcs = PPP_INITFCS; + + netif_set_mtu(pcb, LWIP_MIN(lcp_allowoptions[0].mru, PPP_MRU)); + if (ppp_send_config(pcb, PPP_MRU, (u32_t) 0, 0, 0) < 0 + || ppp_recv_config(pcb, PPP_MRU, (u32_t) 0, 0, 0) < 0) + fatal("Couldn't set up demand-dialled PPP interface: %m"); + +#ifdef PPP_FILTER + set_filters(&pass_filter, &active_filter); +#endif + + /* + * Call the demand_conf procedure for each protocol that's got one. + */ + for (i = 0; (protp = protocols[i]) != NULL; ++i) + if (protp->demand_conf != NULL) + ((*protp->demand_conf)(pcb)); +/* FIXME: find a way to die() here */ +#if 0 + if (!((*protp->demand_conf)(pcb))) + die(1); +#endif +} + + +/* + * demand_block - set each network protocol to block further packets. + */ +void +demand_block() +{ + int i; + const struct protent *protp; + + for (i = 0; (protp = protocols[i]) != NULL; ++i) + if (protp->demand_conf != NULL) + sifnpmode(pcb, protp->protocol & ~0x8000, NPMODE_QUEUE); + get_loop_output(); +} + +/* + * demand_discard - set each network protocol to discard packets + * with an error. + */ +void +demand_discard() +{ + struct packet *pkt, *nextpkt; + int i; + const struct protent *protp; + + for (i = 0; (protp = protocols[i]) != NULL; ++i) + if (protp->demand_conf != NULL) + sifnpmode(pcb, protp->protocol & ~0x8000, NPMODE_ERROR); + get_loop_output(); + + /* discard all saved packets */ + for (pkt = pend_q; pkt != NULL; pkt = nextpkt) { + nextpkt = pkt->next; + free(pkt); + } + pend_q = NULL; + framelen = 0; + flush_flag = 0; + escape_flag = 0; + fcs = PPP_INITFCS; +} + +/* + * demand_unblock - set each enabled network protocol to pass packets. + */ +void +demand_unblock() +{ + int i; + const struct protent *protp; + + for (i = 0; (protp = protocols[i]) != NULL; ++i) + if (protp->demand_conf != NULL) + sifnpmode(pcb, protp->protocol & ~0x8000, NPMODE_PASS); +} + +/* + * FCS lookup table as calculated by genfcstab. + */ +static u_short fcstab[256] = { + 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, + 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7, + 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e, + 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876, + 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd, + 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, + 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c, + 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, + 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb, + 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3, + 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a, + 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72, + 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9, + 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1, + 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, + 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70, + 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, + 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff, + 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036, + 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e, + 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5, + 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd, + 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134, + 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, + 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3, + 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, + 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, + 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a, + 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1, + 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9, + 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330, + 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78 +}; + +/* + * loop_chars - process characters received from the loopback. + * Calls loop_frame when a complete frame has been accumulated. + * Return value is 1 if we need to bring up the link, 0 otherwise. + */ +int +loop_chars(p, n) + unsigned char *p; + int n; +{ + int c, rv; + + rv = 0; + +/* check for synchronous connection... */ + + if ( (p[0] == 0xFF) && (p[1] == 0x03) ) { + rv = loop_frame(p,n); + return rv; + } + + for (; n > 0; --n) { + c = *p++; + if (c == PPP_FLAG) { + if (!escape_flag && !flush_flag + && framelen > 2 && fcs == PPP_GOODFCS) { + framelen -= 2; + if (loop_frame((unsigned char *)frame, framelen)) + rv = 1; + } + framelen = 0; + flush_flag = 0; + escape_flag = 0; + fcs = PPP_INITFCS; + continue; + } + if (flush_flag) + continue; + if (escape_flag) { + c ^= PPP_TRANS; + escape_flag = 0; + } else if (c == PPP_ESCAPE) { + escape_flag = 1; + continue; + } + if (framelen >= framemax) { + flush_flag = 1; + continue; + } + frame[framelen++] = c; + fcs = PPP_FCS(fcs, c); + } + return rv; +} + +/* + * loop_frame - given a frame obtained from the loopback, + * decide whether to bring up the link or not, and, if we want + * to transmit this frame later, put it on the pending queue. + * Return value is 1 if we need to bring up the link, 0 otherwise. + * We assume that the kernel driver has already applied the + * pass_filter, so we won't get packets it rejected. + * We apply the active_filter to see if we want this packet to + * bring up the link. + */ +int +loop_frame(frame, len) + unsigned char *frame; + int len; +{ + struct packet *pkt; + + /* dbglog("from loop: %P", frame, len); */ + if (len < PPP_HDRLEN) + return 0; + if ((PPP_PROTOCOL(frame) & 0x8000) != 0) + return 0; /* shouldn't get any of these anyway */ + if (!active_packet(frame, len)) + return 0; + + pkt = (struct packet *) malloc(sizeof(struct packet) + len); + if (pkt != NULL) { + pkt->length = len; + pkt->next = NULL; + memcpy(pkt->data, frame, len); + if (pend_q == NULL) + pend_q = pkt; + else + pend_qtail->next = pkt; + pend_qtail = pkt; + } + return 1; +} + +/* + * demand_rexmit - Resend all those frames which we got via the + * loopback, now that the real serial link is up. + */ +void +demand_rexmit(proto, newip) + int proto; + u32_t newip; +{ + struct packet *pkt, *prev, *nextpkt; + unsigned short checksum; + unsigned short pkt_checksum = 0; + unsigned iphdr; + struct timeval tv; + char cv = 0; + char ipstr[16]; + + prev = NULL; + pkt = pend_q; + pend_q = NULL; + tv.tv_sec = 1; + tv.tv_usec = 0; + select(0,NULL,NULL,NULL,&tv); /* Sleep for 1 Seconds */ + for (; pkt != NULL; pkt = nextpkt) { + nextpkt = pkt->next; + if (PPP_PROTOCOL(pkt->data) == proto) { + if ( (proto == PPP_IP) && newip ) { + /* Get old checksum */ + + iphdr = (pkt->data[4] & 15) << 2; + checksum = *((unsigned short *) (pkt->data+14)); + if (checksum == 0xFFFF) { + checksum = 0; + } + + + if (pkt->data[13] == 17) { + pkt_checksum = *((unsigned short *) (pkt->data+10+iphdr)); + if (pkt_checksum) { + cv = 1; + if (pkt_checksum == 0xFFFF) { + pkt_checksum = 0; + } + } + else { + cv = 0; + } + } + + if (pkt->data[13] == 6) { + pkt_checksum = *((unsigned short *) (pkt->data+20+iphdr)); + cv = 1; + if (pkt_checksum == 0xFFFF) { + pkt_checksum = 0; + } + } + + /* Delete old Source-IP-Address */ + checksum -= *((unsigned short *) (pkt->data+16)) ^ 0xFFFF; + checksum -= *((unsigned short *) (pkt->data+18)) ^ 0xFFFF; + + pkt_checksum -= *((unsigned short *) (pkt->data+16)) ^ 0xFFFF; + pkt_checksum -= *((unsigned short *) (pkt->data+18)) ^ 0xFFFF; + + /* Change Source-IP-Address */ + * ((u32_t *) (pkt->data + 16)) = newip; + + /* Add new Source-IP-Address */ + checksum += *((unsigned short *) (pkt->data+16)) ^ 0xFFFF; + checksum += *((unsigned short *) (pkt->data+18)) ^ 0xFFFF; + + pkt_checksum += *((unsigned short *) (pkt->data+16)) ^ 0xFFFF; + pkt_checksum += *((unsigned short *) (pkt->data+18)) ^ 0xFFFF; + + /* Write new checksum */ + if (!checksum) { + checksum = 0xFFFF; + } + *((unsigned short *) (pkt->data+14)) = checksum; + if (pkt->data[13] == 6) { + *((unsigned short *) (pkt->data+20+iphdr)) = pkt_checksum; + } + if (cv && (pkt->data[13] == 17) ) { + *((unsigned short *) (pkt->data+10+iphdr)) = pkt_checksum; + } + + /* Log Packet */ + strcpy(ipstr,inet_ntoa(*( (struct in_addr *) (pkt->data+16)))); + if (pkt->data[13] == 1) { + syslog(LOG_INFO,"Open ICMP %s -> %s\n", + ipstr, + inet_ntoa(*( (struct in_addr *) (pkt->data+20)))); + } else { + syslog(LOG_INFO,"Open %s %s:%d -> %s:%d\n", + pkt->data[13] == 6 ? "TCP" : "UDP", + ipstr, + ntohs(*( (short *) (pkt->data+iphdr+4))), + inet_ntoa(*( (struct in_addr *) (pkt->data+20))), + ntohs(*( (short *) (pkt->data+iphdr+6)))); + } + } + output(pcb, pkt->data, pkt->length); + free(pkt); + } else { + if (prev == NULL) + pend_q = pkt; + else + prev->next = pkt; + prev = pkt; + } + } + pend_qtail = prev; + if (prev != NULL) + prev->next = NULL; +} + +/* + * Scan a packet to decide whether it is an "active" packet, + * that is, whether it is worth bringing up the link for. + */ +static int +active_packet(p, len) + unsigned char *p; + int len; +{ + int proto, i; + const struct protent *protp; + + if (len < PPP_HDRLEN) + return 0; + proto = PPP_PROTOCOL(p); +#ifdef PPP_FILTER + p[0] = 1; /* outbound packet indicator */ + if ((pass_filter.bf_len != 0 + && bpf_filter(pass_filter.bf_insns, p, len, len) == 0) + || (active_filter.bf_len != 0 + && bpf_filter(active_filter.bf_insns, p, len, len) == 0)) { + p[0] = 0xff; + return 0; + } + p[0] = 0xff; +#endif + for (i = 0; (protp = protocols[i]) != NULL; ++i) { + if (protp->protocol < 0xC000 && (protp->protocol & ~0x8000) == proto) { + if (protp->active_pkt == NULL) + return 1; + return (*protp->active_pkt)(p, len); + } + } + return 0; /* not a supported protocol !!?? */ +} + +#endif /* PPP_SUPPORT && DEMAND_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/eap.c b/middleware/lwip/src/netif/ppp/eap.c new file mode 100644 index 0000000..7ff52b4 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/eap.c @@ -0,0 +1,2441 @@ +/* + * eap.c - Extensible Authentication Protocol for PPP (RFC 2284) + * + * Copyright (c) 2001 by Sun Microsystems, Inc. + * All rights reserved. + * + * Non-exclusive rights to redistribute, modify, translate, and use + * this software in source and binary forms, in whole or in part, is + * hereby granted, provided that the above copyright notice is + * duplicated in any source form, and that neither the name of the + * copyright holder nor the author is used to endorse or promote + * products derived from this software. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + * + * Original version by James Carlson + * + * This implementation of EAP supports MD5-Challenge and SRP-SHA1 + * authentication styles. Note that support of MD5-Challenge is a + * requirement of RFC 2284, and that it's essentially just a + * reimplementation of regular RFC 1994 CHAP using EAP messages. + * + * As an authenticator ("server"), there are multiple phases for each + * style. In the first phase of each style, the unauthenticated peer + * name is queried using the EAP Identity request type. If the + * "remotename" option is used, then this phase is skipped, because + * the peer's name is presumed to be known. + * + * For MD5-Challenge, there are two phases, and the second phase + * consists of sending the challenge itself and handling the + * associated response. + * + * For SRP-SHA1, there are four phases. The second sends 's', 'N', + * and 'g'. The reply contains 'A'. The third sends 'B', and the + * reply contains 'M1'. The forth sends the 'M2' value. + * + * As an authenticatee ("client"), there's just a single phase -- + * responding to the queries generated by the peer. EAP is an + * authenticator-driven protocol. + * + * Based on draft-ietf-pppext-eap-srp-03.txt. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && EAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include "netif/ppp/ppp_impl.h" +#include "netif/ppp/eap.h" +#include "netif/ppp/magic.h" +#include "netif/ppp/pppcrypt.h" + +#ifdef USE_SRP +#include +#include +#include +#endif /* USE_SRP */ + +#ifndef SHA_DIGESTSIZE +#define SHA_DIGESTSIZE 20 +#endif + +#ifdef USE_SRP +static char *pn_secret = NULL; /* Pseudonym generating secret */ +#endif + +#if PPP_OPTIONS +/* + * Command-line options. + */ +static option_t eap_option_list[] = { + { "eap-restart", o_int, &eap_states[0].es_server.ea_timeout, + "Set retransmit timeout for EAP Requests (server)" }, + { "eap-max-sreq", o_int, &eap_states[0].es_server.ea_maxrequests, + "Set max number of EAP Requests sent (server)" }, + { "eap-timeout", o_int, &eap_states[0].es_client.ea_timeout, + "Set time limit for peer EAP authentication" }, + { "eap-max-rreq", o_int, &eap_states[0].es_client.ea_maxrequests, + "Set max number of EAP Requests allows (client)" }, + { "eap-interval", o_int, &eap_states[0].es_rechallenge, + "Set interval for EAP rechallenge" }, +#ifdef USE_SRP + { "srp-interval", o_int, &eap_states[0].es_lwrechallenge, + "Set interval for SRP lightweight rechallenge" }, + { "srp-pn-secret", o_string, &pn_secret, + "Long term pseudonym generation secret" }, + { "srp-use-pseudonym", o_bool, &eap_states[0].es_usepseudo, + "Use pseudonym if offered one by server", 1 }, +#endif + { NULL } +}; +#endif /* PPP_OPTIONS */ + +/* + * Protocol entry points. + */ +static void eap_init(ppp_pcb *pcb); +static void eap_input(ppp_pcb *pcb, u_char *inp, int inlen); +static void eap_protrej(ppp_pcb *pcb); +static void eap_lowerup(ppp_pcb *pcb); +static void eap_lowerdown(ppp_pcb *pcb); +#if PRINTPKT_SUPPORT +static int eap_printpkt(const u_char *inp, int inlen, + void (*)(void *arg, const char *fmt, ...), void *arg); +#endif /* PRINTPKT_SUPPORT */ + +const struct protent eap_protent = { + PPP_EAP, /* protocol number */ + eap_init, /* initialization procedure */ + eap_input, /* process a received packet */ + eap_protrej, /* process a received protocol-reject */ + eap_lowerup, /* lower layer has gone up */ + eap_lowerdown, /* lower layer has gone down */ + NULL, /* open the protocol */ + NULL, /* close the protocol */ +#if PRINTPKT_SUPPORT + eap_printpkt, /* print a packet in readable form */ +#endif /* PRINTPKT_SUPPORT */ +#if PPP_DATAINPUT + NULL, /* process a received data packet */ +#endif /* PPP_DATAINPUT */ +#if PRINTPKT_SUPPORT + "EAP", /* text name of protocol */ + NULL, /* text name of corresponding data protocol */ +#endif /* PRINTPKT_SUPPORT */ +#if PPP_OPTIONS + eap_option_list, /* list of command-line options */ + NULL, /* check requested options; assign defaults */ +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT + NULL, /* configure interface for demand-dial */ + NULL /* say whether to bring up link for this pkt */ +#endif /* DEMAND_SUPPORT */ +}; + +#ifdef USE_SRP +/* + * A well-known 2048 bit modulus. + */ +static const u_char wkmodulus[] = { + 0xAC, 0x6B, 0xDB, 0x41, 0x32, 0x4A, 0x9A, 0x9B, + 0xF1, 0x66, 0xDE, 0x5E, 0x13, 0x89, 0x58, 0x2F, + 0xAF, 0x72, 0xB6, 0x65, 0x19, 0x87, 0xEE, 0x07, + 0xFC, 0x31, 0x92, 0x94, 0x3D, 0xB5, 0x60, 0x50, + 0xA3, 0x73, 0x29, 0xCB, 0xB4, 0xA0, 0x99, 0xED, + 0x81, 0x93, 0xE0, 0x75, 0x77, 0x67, 0xA1, 0x3D, + 0xD5, 0x23, 0x12, 0xAB, 0x4B, 0x03, 0x31, 0x0D, + 0xCD, 0x7F, 0x48, 0xA9, 0xDA, 0x04, 0xFD, 0x50, + 0xE8, 0x08, 0x39, 0x69, 0xED, 0xB7, 0x67, 0xB0, + 0xCF, 0x60, 0x95, 0x17, 0x9A, 0x16, 0x3A, 0xB3, + 0x66, 0x1A, 0x05, 0xFB, 0xD5, 0xFA, 0xAA, 0xE8, + 0x29, 0x18, 0xA9, 0x96, 0x2F, 0x0B, 0x93, 0xB8, + 0x55, 0xF9, 0x79, 0x93, 0xEC, 0x97, 0x5E, 0xEA, + 0xA8, 0x0D, 0x74, 0x0A, 0xDB, 0xF4, 0xFF, 0x74, + 0x73, 0x59, 0xD0, 0x41, 0xD5, 0xC3, 0x3E, 0xA7, + 0x1D, 0x28, 0x1E, 0x44, 0x6B, 0x14, 0x77, 0x3B, + 0xCA, 0x97, 0xB4, 0x3A, 0x23, 0xFB, 0x80, 0x16, + 0x76, 0xBD, 0x20, 0x7A, 0x43, 0x6C, 0x64, 0x81, + 0xF1, 0xD2, 0xB9, 0x07, 0x87, 0x17, 0x46, 0x1A, + 0x5B, 0x9D, 0x32, 0xE6, 0x88, 0xF8, 0x77, 0x48, + 0x54, 0x45, 0x23, 0xB5, 0x24, 0xB0, 0xD5, 0x7D, + 0x5E, 0xA7, 0x7A, 0x27, 0x75, 0xD2, 0xEC, 0xFA, + 0x03, 0x2C, 0xFB, 0xDB, 0xF5, 0x2F, 0xB3, 0x78, + 0x61, 0x60, 0x27, 0x90, 0x04, 0xE5, 0x7A, 0xE6, + 0xAF, 0x87, 0x4E, 0x73, 0x03, 0xCE, 0x53, 0x29, + 0x9C, 0xCC, 0x04, 0x1C, 0x7B, 0xC3, 0x08, 0xD8, + 0x2A, 0x56, 0x98, 0xF3, 0xA8, 0xD0, 0xC3, 0x82, + 0x71, 0xAE, 0x35, 0xF8, 0xE9, 0xDB, 0xFB, 0xB6, + 0x94, 0xB5, 0xC8, 0x03, 0xD8, 0x9F, 0x7A, 0xE4, + 0x35, 0xDE, 0x23, 0x6D, 0x52, 0x5F, 0x54, 0x75, + 0x9B, 0x65, 0xE3, 0x72, 0xFC, 0xD6, 0x8E, 0xF2, + 0x0F, 0xA7, 0x11, 0x1F, 0x9E, 0x4A, 0xFF, 0x73 +}; +#endif + +#if PPP_SERVER +/* Local forward declarations. */ +static void eap_server_timeout(void *arg); +#endif /* PPP_SERVER */ + +/* + * Convert EAP state code to printable string for debug. + */ +static const char * eap_state_name(enum eap_state_code esc) +{ + static const char *state_names[] = { EAP_STATES }; + + return (state_names[(int)esc]); +} + +/* + * eap_init - Initialize state for an EAP user. This is currently + * called once by main() during start-up. + */ +static void eap_init(ppp_pcb *pcb) { + + BZERO(&pcb->eap, sizeof(eap_state)); +#if PPP_SERVER + pcb->eap.es_server.ea_id = magic(); +#endif /* PPP_SERVER */ +} + +/* + * eap_client_timeout - Give up waiting for the peer to send any + * Request messages. + */ +static void eap_client_timeout(void *arg) { + ppp_pcb *pcb = (ppp_pcb*)arg; + + if (!eap_client_active(pcb)) + return; + + ppp_error(("EAP: timeout waiting for Request from peer")); + auth_withpeer_fail(pcb, PPP_EAP); + pcb->eap.es_client.ea_state = eapBadAuth; +} + +/* + * eap_authwithpeer - Authenticate to our peer (behave as client). + * + * Start client state and wait for requests. This is called only + * after eap_lowerup. + */ +void eap_authwithpeer(ppp_pcb *pcb, const char *localname) { + + if(NULL == localname) + return; + + /* Save the peer name we're given */ + pcb->eap.es_client.ea_name = localname; + pcb->eap.es_client.ea_namelen = strlen(localname); + + pcb->eap.es_client.ea_state = eapListen; + + /* + * Start a timer so that if the other end just goes + * silent, we don't sit here waiting forever. + */ + if (pcb->settings.eap_req_time > 0) + TIMEOUT(eap_client_timeout, pcb, + pcb->settings.eap_req_time); +} + +#if PPP_SERVER +/* + * Format a standard EAP Failure message and send it to the peer. + * (Server operation) + */ +static void eap_send_failure(ppp_pcb *pcb) { + struct pbuf *p; + u_char *outp; + + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + EAP_HEADERLEN), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = (u_char*)p->payload; + + MAKEHEADER(outp, PPP_EAP); + + PUTCHAR(EAP_FAILURE, outp); + pcb->eap.es_server.ea_id++; + PUTCHAR(pcb->eap.es_server.ea_id, outp); + PUTSHORT(EAP_HEADERLEN, outp); + + ppp_write(pcb, p); + + pcb->eap.es_server.ea_state = eapBadAuth; + auth_peer_fail(pcb, PPP_EAP); +} + +/* + * Format a standard EAP Success message and send it to the peer. + * (Server operation) + */ +static void eap_send_success(ppp_pcb *pcb) { + struct pbuf *p; + u_char *outp; + + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + EAP_HEADERLEN), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = (u_char*)p->payload; + + MAKEHEADER(outp, PPP_EAP); + + PUTCHAR(EAP_SUCCESS, outp); + pcb->eap.es_server.ea_id++; + PUTCHAR(pcb->eap.es_server.ea_id, outp); + PUTSHORT(EAP_HEADERLEN, outp); + + ppp_write(pcb, p); + + auth_peer_success(pcb, PPP_EAP, 0, + pcb->eap.es_server.ea_peer, pcb->eap.es_server.ea_peerlen); +} +#endif /* PPP_SERVER */ + +#ifdef USE_SRP +/* + * Set DES key according to pseudonym-generating secret and current + * date. + */ +static bool +pncrypt_setkey(int timeoffs) +{ + struct tm *tp; + char tbuf[9]; + SHA1_CTX ctxt; + u_char dig[SHA_DIGESTSIZE]; + time_t reftime; + + if (pn_secret == NULL) + return (0); + reftime = time(NULL) + timeoffs; + tp = localtime(&reftime); + SHA1Init(&ctxt); + SHA1Update(&ctxt, pn_secret, strlen(pn_secret)); + strftime(tbuf, sizeof (tbuf), "%Y%m%d", tp); + SHA1Update(&ctxt, tbuf, strlen(tbuf)); + SHA1Final(dig, &ctxt); + /* FIXME: if we want to do SRP, we need to find a way to pass the PolarSSL des_context instead of using static memory */ + return (DesSetkey(dig)); +} + +static char base64[] = +"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + +struct b64state { + u32_t bs_bits; + int bs_offs; +}; + +static int +b64enc(bs, inp, inlen, outp) +struct b64state *bs; +u_char *inp; +int inlen; +u_char *outp; +{ + int outlen = 0; + + while (inlen > 0) { + bs->bs_bits = (bs->bs_bits << 8) | *inp++; + inlen--; + bs->bs_offs += 8; + if (bs->bs_offs >= 24) { + *outp++ = base64[(bs->bs_bits >> 18) & 0x3F]; + *outp++ = base64[(bs->bs_bits >> 12) & 0x3F]; + *outp++ = base64[(bs->bs_bits >> 6) & 0x3F]; + *outp++ = base64[bs->bs_bits & 0x3F]; + outlen += 4; + bs->bs_offs = 0; + bs->bs_bits = 0; + } + } + return (outlen); +} + +static int +b64flush(bs, outp) +struct b64state *bs; +u_char *outp; +{ + int outlen = 0; + + if (bs->bs_offs == 8) { + *outp++ = base64[(bs->bs_bits >> 2) & 0x3F]; + *outp++ = base64[(bs->bs_bits << 4) & 0x3F]; + outlen = 2; + } else if (bs->bs_offs == 16) { + *outp++ = base64[(bs->bs_bits >> 10) & 0x3F]; + *outp++ = base64[(bs->bs_bits >> 4) & 0x3F]; + *outp++ = base64[(bs->bs_bits << 2) & 0x3F]; + outlen = 3; + } + bs->bs_offs = 0; + bs->bs_bits = 0; + return (outlen); +} + +static int +b64dec(bs, inp, inlen, outp) +struct b64state *bs; +u_char *inp; +int inlen; +u_char *outp; +{ + int outlen = 0; + char *cp; + + while (inlen > 0) { + if ((cp = strchr(base64, *inp++)) == NULL) + break; + bs->bs_bits = (bs->bs_bits << 6) | (cp - base64); + inlen--; + bs->bs_offs += 6; + if (bs->bs_offs >= 8) { + *outp++ = bs->bs_bits >> (bs->bs_offs - 8); + outlen++; + bs->bs_offs -= 8; + } + } + return (outlen); +} +#endif /* USE_SRP */ + +#if PPP_SERVER +/* + * Assume that current waiting server state is complete and figure + * next state to use based on available authentication data. 'status' + * indicates if there was an error in handling the last query. It is + * 0 for success and non-zero for failure. + */ +static void eap_figure_next_state(ppp_pcb *pcb, int status) { +#ifdef USE_SRP + unsigned char secbuf[MAXSECRETLEN], clear[8], *sp, *dp; + struct t_pw tpw; + struct t_confent *tce, mytce; + char *cp, *cp2; + struct t_server *ts; + int id, i, plen, toffs; + u_char vals[2]; + struct b64state bs; +#endif /* USE_SRP */ + + pcb->settings.eap_timeout_time = pcb->eap.es_savedtime; + switch (pcb->eap.es_server.ea_state) { + case eapBadAuth: + return; + + case eapIdentify: +#ifdef USE_SRP + /* Discard any previous session. */ + ts = (struct t_server *)pcb->eap.es_server.ea_session; + if (ts != NULL) { + t_serverclose(ts); + pcb->eap.es_server.ea_session = NULL; + pcb->eap.es_server.ea_skey = NULL; + } +#endif /* USE_SRP */ + if (status != 0) { + pcb->eap.es_server.ea_state = eapBadAuth; + break; + } +#ifdef USE_SRP + /* If we've got a pseudonym, try to decode to real name. */ + if (pcb->eap.es_server.ea_peerlen > SRP_PSEUDO_LEN && + strncmp(pcb->eap.es_server.ea_peer, SRP_PSEUDO_ID, + SRP_PSEUDO_LEN) == 0 && + (pcb->eap.es_server.ea_peerlen - SRP_PSEUDO_LEN) * 3 / 4 < + sizeof (secbuf)) { + BZERO(&bs, sizeof (bs)); + plen = b64dec(&bs, + pcb->eap.es_server.ea_peer + SRP_PSEUDO_LEN, + pcb->eap.es_server.ea_peerlen - SRP_PSEUDO_LEN, + secbuf); + toffs = 0; + for (i = 0; i < 5; i++) { + pncrypt_setkey(toffs); + toffs -= 86400; + /* FIXME: if we want to do SRP, we need to find a way to pass the PolarSSL des_context instead of using static memory */ + if (!DesDecrypt(secbuf, clear)) { + ppp_dbglog(("no DES here; cannot decode " + "pseudonym")); + return; + } + id = *(unsigned char *)clear; + if (id + 1 <= plen && id + 9 > plen) + break; + } + if (plen % 8 == 0 && i < 5) { + /* + * Note that this is always shorter than the + * original stored string, so there's no need + * to realloc. + */ + if ((i = plen = *(unsigned char *)clear) > 7) + i = 7; + pcb->eap.es_server.ea_peerlen = plen; + dp = (unsigned char *)pcb->eap.es_server.ea_peer; + MEMCPY(dp, clear + 1, i); + plen -= i; + dp += i; + sp = secbuf + 8; + while (plen > 0) { + /* FIXME: if we want to do SRP, we need to find a way to pass the PolarSSL des_context instead of using static memory */ + (void) DesDecrypt(sp, dp); + sp += 8; + dp += 8; + plen -= 8; + } + pcb->eap.es_server.ea_peer[ + pcb->eap.es_server.ea_peerlen] = '\0'; + ppp_dbglog(("decoded pseudonym to \"%.*q\"", + pcb->eap.es_server.ea_peerlen, + pcb->eap.es_server.ea_peer)); + } else { + ppp_dbglog(("failed to decode real name")); + /* Stay in eapIdentfy state; requery */ + break; + } + } + /* Look up user in secrets database. */ + if (get_srp_secret(pcb->eap.es_unit, pcb->eap.es_server.ea_peer, + pcb->eap.es_server.ea_name, (char *)secbuf, 1) != 0) { + /* Set up default in case SRP entry is bad */ + pcb->eap.es_server.ea_state = eapMD5Chall; + /* Get t_confent based on index in srp-secrets */ + id = strtol((char *)secbuf, &cp, 10); + if (*cp++ != ':' || id < 0) + break; + if (id == 0) { + mytce.index = 0; + mytce.modulus.data = (u_char *)wkmodulus; + mytce.modulus.len = sizeof (wkmodulus); + mytce.generator.data = (u_char *)"\002"; + mytce.generator.len = 1; + tce = &mytce; + } else if ((tce = gettcid(id)) != NULL) { + /* + * Client will have to verify this modulus/ + * generator combination, and that will take + * a while. Lengthen the timeout here. + */ + if (pcb->settings.eap_timeout_time > 0 && + pcb->settings.eap_timeout_time < 30) + pcb->settings.eap_timeout_time = 30; + } else { + break; + } + if ((cp2 = strchr(cp, ':')) == NULL) + break; + *cp2++ = '\0'; + tpw.pebuf.name = pcb->eap.es_server.ea_peer; + tpw.pebuf.password.len = t_fromb64((char *)tpw.pwbuf, + cp); + tpw.pebuf.password.data = tpw.pwbuf; + tpw.pebuf.salt.len = t_fromb64((char *)tpw.saltbuf, + cp2); + tpw.pebuf.salt.data = tpw.saltbuf; + if ((ts = t_serveropenraw(&tpw.pebuf, tce)) == NULL) + break; + pcb->eap.es_server.ea_session = (void *)ts; + pcb->eap.es_server.ea_state = eapSRP1; + vals[0] = pcb->eap.es_server.ea_id + 1; + vals[1] = EAPT_SRP; + t_serveraddexdata(ts, vals, 2); + /* Generate B; must call before t_servergetkey() */ + t_servergenexp(ts); + break; + } +#endif /* USE_SRP */ + pcb->eap.es_server.ea_state = eapMD5Chall; + break; + + case eapSRP1: +#ifdef USE_SRP + ts = (struct t_server *)pcb->eap.es_server.ea_session; + if (ts != NULL && status != 0) { + t_serverclose(ts); + pcb->eap.es_server.ea_session = NULL; + pcb->eap.es_server.ea_skey = NULL; + } +#endif /* USE_SRP */ + if (status == 1) { + pcb->eap.es_server.ea_state = eapMD5Chall; + } else if (status != 0 || pcb->eap.es_server.ea_session == NULL) { + pcb->eap.es_server.ea_state = eapBadAuth; + } else { + pcb->eap.es_server.ea_state = eapSRP2; + } + break; + + case eapSRP2: +#ifdef USE_SRP + ts = (struct t_server *)pcb->eap.es_server.ea_session; + if (ts != NULL && status != 0) { + t_serverclose(ts); + pcb->eap.es_server.ea_session = NULL; + pcb->eap.es_server.ea_skey = NULL; + } +#endif /* USE_SRP */ + if (status != 0 || pcb->eap.es_server.ea_session == NULL) { + pcb->eap.es_server.ea_state = eapBadAuth; + } else { + pcb->eap.es_server.ea_state = eapSRP3; + } + break; + + case eapSRP3: + case eapSRP4: +#ifdef USE_SRP + ts = (struct t_server *)pcb->eap.es_server.ea_session; + if (ts != NULL && status != 0) { + t_serverclose(ts); + pcb->eap.es_server.ea_session = NULL; + pcb->eap.es_server.ea_skey = NULL; + } +#endif /* USE_SRP */ + if (status != 0 || pcb->eap.es_server.ea_session == NULL) { + pcb->eap.es_server.ea_state = eapBadAuth; + } else { + pcb->eap.es_server.ea_state = eapOpen; + } + break; + + case eapMD5Chall: + if (status != 0) { + pcb->eap.es_server.ea_state = eapBadAuth; + } else { + pcb->eap.es_server.ea_state = eapOpen; + } + break; + + default: + pcb->eap.es_server.ea_state = eapBadAuth; + break; + } + if (pcb->eap.es_server.ea_state == eapBadAuth) + eap_send_failure(pcb); +} + +/* + * Format an EAP Request message and send it to the peer. Message + * type depends on current state. (Server operation) + */ +static void eap_send_request(ppp_pcb *pcb) { + struct pbuf *p; + u_char *outp; + u_char *lenloc; + int outlen; + int len; + const char *str; +#ifdef USE_SRP + struct t_server *ts; + u_char clear[8], cipher[8], dig[SHA_DIGESTSIZE], *optr, *cp; + int i, j; + struct b64state b64; + SHA1_CTX ctxt; +#endif /* USE_SRP */ + + /* Handle both initial auth and restart */ + if (pcb->eap.es_server.ea_state < eapIdentify && + pcb->eap.es_server.ea_state != eapInitial) { + pcb->eap.es_server.ea_state = eapIdentify; +#if PPP_REMOTENAME + if (pcb->settings.explicit_remote && pcb->remote_name) { + /* + * If we already know the peer's + * unauthenticated name, then there's no + * reason to ask. Go to next state instead. + */ + int len = (int)strlen(pcb->remote_name); + if (len > MAXNAMELEN) { + len = MAXNAMELEN; + } + MEMCPY(pcb->eap.es_server.ea_peer, pcb->remote_name, len); + pcb->eap.es_server.ea_peer[len] = '\0'; + pcb->eap.es_server.ea_peerlen = len; + eap_figure_next_state(pcb, 0); + } +#endif /* PPP_REMOTENAME */ + } + + if (pcb->settings.eap_max_transmits > 0 && + pcb->eap.es_server.ea_requests >= pcb->settings.eap_max_transmits) { + if (pcb->eap.es_server.ea_responses > 0) + ppp_error(("EAP: too many Requests sent")); + else + ppp_error(("EAP: no response to Requests")); + eap_send_failure(pcb); + return; + } + + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_CTRL_PBUF_MAX_SIZE), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = (u_char*)p->payload; + + MAKEHEADER(outp, PPP_EAP); + + PUTCHAR(EAP_REQUEST, outp); + PUTCHAR(pcb->eap.es_server.ea_id, outp); + lenloc = outp; + INCPTR(2, outp); + + switch (pcb->eap.es_server.ea_state) { + case eapIdentify: + PUTCHAR(EAPT_IDENTITY, outp); + str = "Name"; + len = strlen(str); + MEMCPY(outp, str, len); + INCPTR(len, outp); + break; + + case eapMD5Chall: + PUTCHAR(EAPT_MD5CHAP, outp); + /* + * pick a random challenge length between + * EAP_MIN_CHALLENGE_LENGTH and EAP_MAX_CHALLENGE_LENGTH + */ + pcb->eap.es_challen = EAP_MIN_CHALLENGE_LENGTH + + magic_pow(EAP_MIN_MAX_POWER_OF_TWO_CHALLENGE_LENGTH); + PUTCHAR(pcb->eap.es_challen, outp); + magic_random_bytes(pcb->eap.es_challenge, pcb->eap.es_challen); + MEMCPY(outp, pcb->eap.es_challenge, pcb->eap.es_challen); + INCPTR(pcb->eap.es_challen, outp); + MEMCPY(outp, pcb->eap.es_server.ea_name, pcb->eap.es_server.ea_namelen); + INCPTR(pcb->eap.es_server.ea_namelen, outp); + break; + +#ifdef USE_SRP + case eapSRP1: + PUTCHAR(EAPT_SRP, outp); + PUTCHAR(EAPSRP_CHALLENGE, outp); + + PUTCHAR(pcb->eap.es_server.ea_namelen, outp); + MEMCPY(outp, pcb->eap.es_server.ea_name, pcb->eap.es_server.ea_namelen); + INCPTR(pcb->eap.es_server.ea_namelen, outp); + + ts = (struct t_server *)pcb->eap.es_server.ea_session; + assert(ts != NULL); + PUTCHAR(ts->s.len, outp); + MEMCPY(outp, ts->s.data, ts->s.len); + INCPTR(ts->s.len, outp); + + if (ts->g.len == 1 && ts->g.data[0] == 2) { + PUTCHAR(0, outp); + } else { + PUTCHAR(ts->g.len, outp); + MEMCPY(outp, ts->g.data, ts->g.len); + INCPTR(ts->g.len, outp); + } + + if (ts->n.len != sizeof (wkmodulus) || + BCMP(ts->n.data, wkmodulus, sizeof (wkmodulus)) != 0) { + MEMCPY(outp, ts->n.data, ts->n.len); + INCPTR(ts->n.len, outp); + } + break; + + case eapSRP2: + PUTCHAR(EAPT_SRP, outp); + PUTCHAR(EAPSRP_SKEY, outp); + + ts = (struct t_server *)pcb->eap.es_server.ea_session; + assert(ts != NULL); + MEMCPY(outp, ts->B.data, ts->B.len); + INCPTR(ts->B.len, outp); + break; + + case eapSRP3: + PUTCHAR(EAPT_SRP, outp); + PUTCHAR(EAPSRP_SVALIDATOR, outp); + PUTLONG(SRPVAL_EBIT, outp); + ts = (struct t_server *)pcb->eap.es_server.ea_session; + assert(ts != NULL); + MEMCPY(outp, t_serverresponse(ts), SHA_DIGESTSIZE); + INCPTR(SHA_DIGESTSIZE, outp); + + if (pncrypt_setkey(0)) { + /* Generate pseudonym */ + optr = outp; + cp = (unsigned char *)pcb->eap.es_server.ea_peer; + if ((j = i = pcb->eap.es_server.ea_peerlen) > 7) + j = 7; + clear[0] = i; + MEMCPY(clear + 1, cp, j); + i -= j; + cp += j; + /* FIXME: if we want to do SRP, we need to find a way to pass the PolarSSL des_context instead of using static memory */ + if (!DesEncrypt(clear, cipher)) { + ppp_dbglog(("no DES here; not generating pseudonym")); + break; + } + BZERO(&b64, sizeof (b64)); + outp++; /* space for pseudonym length */ + outp += b64enc(&b64, cipher, 8, outp); + while (i >= 8) { + /* FIXME: if we want to do SRP, we need to find a way to pass the PolarSSL des_context instead of using static memory */ + (void) DesEncrypt(cp, cipher); + outp += b64enc(&b64, cipher, 8, outp); + cp += 8; + i -= 8; + } + if (i > 0) { + MEMCPY(clear, cp, i); + cp += i; + magic_random_bytes(cp, 8-i); + /* FIXME: if we want to do SRP, we need to find a way to pass the PolarSSL des_context instead of using static memory */ + (void) DesEncrypt(clear, cipher); + outp += b64enc(&b64, cipher, 8, outp); + } + outp += b64flush(&b64, outp); + + /* Set length and pad out to next 20 octet boundary */ + i = outp - optr - 1; + *optr = i; + i %= SHA_DIGESTSIZE; + if (i != 0) { + magic_random_bytes(outp, SHA_DIGESTSIZE-i); + INCPTR(SHA_DIGESTSIZE-i, outp); + } + + /* Obscure the pseudonym with SHA1 hash */ + SHA1Init(&ctxt); + SHA1Update(&ctxt, &pcb->eap.es_server.ea_id, 1); + SHA1Update(&ctxt, pcb->eap.es_server.ea_skey, + SESSION_KEY_LEN); + SHA1Update(&ctxt, pcb->eap.es_server.ea_peer, + pcb->eap.es_server.ea_peerlen); + while (optr < outp) { + SHA1Final(dig, &ctxt); + cp = dig; + while (cp < dig + SHA_DIGESTSIZE) + *optr++ ^= *cp++; + SHA1Init(&ctxt); + SHA1Update(&ctxt, &pcb->eap.es_server.ea_id, 1); + SHA1Update(&ctxt, pcb->eap.es_server.ea_skey, + SESSION_KEY_LEN); + SHA1Update(&ctxt, optr - SHA_DIGESTSIZE, + SHA_DIGESTSIZE); + } + } + break; + + case eapSRP4: + PUTCHAR(EAPT_SRP, outp); + PUTCHAR(EAPSRP_LWRECHALLENGE, outp); + pcb->eap.es_challen = EAP_MIN_CHALLENGE_LENGTH + + magic_pow(EAP_MIN_MAX_POWER_OF_TWO_CHALLENGE_LENGTH); + magic_random_bytes(pcb->eap.es_challenge, pcb->eap.es_challen); + MEMCPY(outp, pcb->eap.es_challenge, pcb->eap.es_challen); + INCPTR(pcb->eap.es_challen, outp); + break; +#endif /* USE_SRP */ + + default: + return; + } + + outlen = (outp - (unsigned char*)p->payload) - PPP_HDRLEN; + PUTSHORT(outlen, lenloc); + + pbuf_realloc(p, outlen + PPP_HDRLEN); + ppp_write(pcb, p); + + pcb->eap.es_server.ea_requests++; + + if (pcb->settings.eap_timeout_time > 0) + TIMEOUT(eap_server_timeout, pcb, pcb->settings.eap_timeout_time); +} + +/* + * eap_authpeer - Authenticate our peer (behave as server). + * + * Start server state and send first request. This is called only + * after eap_lowerup. + */ +void eap_authpeer(ppp_pcb *pcb, const char *localname) { + + /* Save the name we're given. */ + pcb->eap.es_server.ea_name = localname; + pcb->eap.es_server.ea_namelen = strlen(localname); + + pcb->eap.es_savedtime = pcb->settings.eap_timeout_time; + + /* Lower layer up yet? */ + if (pcb->eap.es_server.ea_state == eapInitial || + pcb->eap.es_server.ea_state == eapPending) { + pcb->eap.es_server.ea_state = eapPending; + return; + } + + pcb->eap.es_server.ea_state = eapPending; + + /* ID number not updated here intentionally; hashed into M1 */ + eap_send_request(pcb); +} + +/* + * eap_server_timeout - Retransmission timer for sending Requests + * expired. + */ +static void eap_server_timeout(void *arg) { + ppp_pcb *pcb = (ppp_pcb*)arg; + + if (!eap_server_active(pcb)) + return; + + /* EAP ID number must not change on timeout. */ + eap_send_request(pcb); +} + +/* + * When it's time to send rechallenge the peer, this timeout is + * called. Once the rechallenge is successful, the response handler + * will restart the timer. If it fails, then the link is dropped. + */ +static void eap_rechallenge(void *arg) { + ppp_pcb *pcb = (ppp_pcb*)arg; + + if (pcb->eap.es_server.ea_state != eapOpen && + pcb->eap.es_server.ea_state != eapSRP4) + return; + + pcb->eap.es_server.ea_requests = 0; + pcb->eap.es_server.ea_state = eapIdentify; + eap_figure_next_state(pcb, 0); + pcb->eap.es_server.ea_id++; + eap_send_request(pcb); +} + +static void srp_lwrechallenge(void *arg) { + ppp_pcb *pcb = (ppp_pcb*)arg; + + if (pcb->eap.es_server.ea_state != eapOpen || + pcb->eap.es_server.ea_type != EAPT_SRP) + return; + + pcb->eap.es_server.ea_requests = 0; + pcb->eap.es_server.ea_state = eapSRP4; + pcb->eap.es_server.ea_id++; + eap_send_request(pcb); +} +#endif /* PPP_SERVER */ + +/* + * eap_lowerup - The lower layer is now up. + * + * This is called before either eap_authpeer or eap_authwithpeer. See + * link_established() in auth.c. All that's necessary here is to + * return to closed state so that those two routines will do the right + * thing. + */ +static void eap_lowerup(ppp_pcb *pcb) { + pcb->eap.es_client.ea_state = eapClosed; +#if PPP_SERVER + pcb->eap.es_server.ea_state = eapClosed; +#endif /* PPP_SERVER */ +} + +/* + * eap_lowerdown - The lower layer is now down. + * + * Cancel all timeouts and return to initial state. + */ +static void eap_lowerdown(ppp_pcb *pcb) { + + if (eap_client_active(pcb) && pcb->settings.eap_req_time > 0) { + UNTIMEOUT(eap_client_timeout, pcb); + } +#if PPP_SERVER + if (eap_server_active(pcb)) { + if (pcb->settings.eap_timeout_time > 0) { + UNTIMEOUT(eap_server_timeout, pcb); + } + } else { + if ((pcb->eap.es_server.ea_state == eapOpen || + pcb->eap.es_server.ea_state == eapSRP4) && + pcb->eap.es_rechallenge > 0) { + UNTIMEOUT(eap_rechallenge, (void *)pcb); + } + if (pcb->eap.es_server.ea_state == eapOpen && + pcb->eap.es_lwrechallenge > 0) { + UNTIMEOUT(srp_lwrechallenge, (void *)pcb); + } + } + + pcb->eap.es_client.ea_state = pcb->eap.es_server.ea_state = eapInitial; + pcb->eap.es_client.ea_requests = pcb->eap.es_server.ea_requests = 0; +#endif /* PPP_SERVER */ +} + +/* + * eap_protrej - Peer doesn't speak this protocol. + * + * This shouldn't happen. If it does, it represents authentication + * failure. + */ +static void eap_protrej(ppp_pcb *pcb) { + + if (eap_client_active(pcb)) { + ppp_error(("EAP authentication failed due to Protocol-Reject")); + auth_withpeer_fail(pcb, PPP_EAP); + } +#if PPP_SERVER + if (eap_server_active(pcb)) { + ppp_error(("EAP authentication of peer failed on Protocol-Reject")); + auth_peer_fail(pcb, PPP_EAP); + } +#endif /* PPP_SERVER */ + eap_lowerdown(pcb); +} + +/* + * Format and send a regular EAP Response message. + */ +static void eap_send_response(ppp_pcb *pcb, u_char id, u_char typenum, const u_char *str, int lenstr) { + struct pbuf *p; + u_char *outp; + int msglen; + + msglen = EAP_HEADERLEN + sizeof (u_char) + lenstr; + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + msglen), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = (u_char*)p->payload; + + MAKEHEADER(outp, PPP_EAP); + + PUTCHAR(EAP_RESPONSE, outp); + PUTCHAR(id, outp); + pcb->eap.es_client.ea_id = id; + PUTSHORT(msglen, outp); + PUTCHAR(typenum, outp); + if (lenstr > 0) { + MEMCPY(outp, str, lenstr); + } + + ppp_write(pcb, p); +} + +/* + * Format and send an MD5-Challenge EAP Response message. + */ +static void eap_chap_response(ppp_pcb *pcb, u_char id, u_char *hash, const char *name, int namelen) { + struct pbuf *p; + u_char *outp; + int msglen; + + msglen = EAP_HEADERLEN + 2 * sizeof (u_char) + MD5_SIGNATURE_SIZE + + namelen; + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + msglen), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = (u_char*)p->payload; + + MAKEHEADER(outp, PPP_EAP); + + PUTCHAR(EAP_RESPONSE, outp); + PUTCHAR(id, outp); + pcb->eap.es_client.ea_id = id; + PUTSHORT(msglen, outp); + PUTCHAR(EAPT_MD5CHAP, outp); + PUTCHAR(MD5_SIGNATURE_SIZE, outp); + MEMCPY(outp, hash, MD5_SIGNATURE_SIZE); + INCPTR(MD5_SIGNATURE_SIZE, outp); + if (namelen > 0) { + MEMCPY(outp, name, namelen); + } + + ppp_write(pcb, p); +} + +#ifdef USE_SRP +/* + * Format and send a SRP EAP Response message. + */ +static void +eap_srp_response(esp, id, subtypenum, str, lenstr) +eap_state *esp; +u_char id; +u_char subtypenum; +u_char *str; +int lenstr; +{ + ppp_pcb *pcb = &ppp_pcb_list[pcb->eap.es_unit]; + struct pbuf *p; + u_char *outp; + int msglen; + + msglen = EAP_HEADERLEN + 2 * sizeof (u_char) + lenstr; + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + msglen), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = p->payload; + + MAKEHEADER(outp, PPP_EAP); + + PUTCHAR(EAP_RESPONSE, outp); + PUTCHAR(id, outp); + pcb->eap.es_client.ea_id = id; + PUTSHORT(msglen, outp); + PUTCHAR(EAPT_SRP, outp); + PUTCHAR(subtypenum, outp); + if (lenstr > 0) { + MEMCPY(outp, str, lenstr); + } + + ppp_write(pcb, p); +} + +/* + * Format and send a SRP EAP Client Validator Response message. + */ +static void +eap_srpval_response(esp, id, flags, str) +eap_state *esp; +u_char id; +u32_t flags; +u_char *str; +{ + ppp_pcb *pcb = &ppp_pcb_list[pcb->eap.es_unit]; + struct pbuf *p; + u_char *outp; + int msglen; + + msglen = EAP_HEADERLEN + 2 * sizeof (u_char) + sizeof (u32_t) + + SHA_DIGESTSIZE; + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + msglen), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = p->payload; + + MAKEHEADER(outp, PPP_EAP); + + PUTCHAR(EAP_RESPONSE, outp); + PUTCHAR(id, outp); + pcb->eap.es_client.ea_id = id; + PUTSHORT(msglen, outp); + PUTCHAR(EAPT_SRP, outp); + PUTCHAR(EAPSRP_CVALIDATOR, outp); + PUTLONG(flags, outp); + MEMCPY(outp, str, SHA_DIGESTSIZE); + + ppp_write(pcb, p); +} +#endif /* USE_SRP */ + +static void eap_send_nak(ppp_pcb *pcb, u_char id, u_char type) { + struct pbuf *p; + u_char *outp; + int msglen; + + msglen = EAP_HEADERLEN + 2 * sizeof (u_char); + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + msglen), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = (u_char*)p->payload; + + MAKEHEADER(outp, PPP_EAP); + + PUTCHAR(EAP_RESPONSE, outp); + PUTCHAR(id, outp); + pcb->eap.es_client.ea_id = id; + PUTSHORT(msglen, outp); + PUTCHAR(EAPT_NAK, outp); + PUTCHAR(type, outp); + + ppp_write(pcb, p); +} + +#ifdef USE_SRP +static char * +name_of_pn_file() +{ + char *user, *path, *file; + struct passwd *pw; + size_t pl; + static bool pnlogged = 0; + + pw = getpwuid(getuid()); + if (pw == NULL || (user = pw->pw_dir) == NULL || user[0] == 0) { + errno = EINVAL; + return (NULL); + } + file = _PATH_PSEUDONYM; + pl = strlen(user) + strlen(file) + 2; + path = malloc(pl); + if (path == NULL) + return (NULL); + (void) slprintf(path, pl, "%s/%s", user, file); + if (!pnlogged) { + ppp_dbglog(("pseudonym file: %s", path)); + pnlogged = 1; + } + return (path); +} + +static int +open_pn_file(modebits) +mode_t modebits; +{ + char *path; + int fd, err; + + if ((path = name_of_pn_file()) == NULL) + return (-1); + fd = open(path, modebits, S_IRUSR | S_IWUSR); + err = errno; + free(path); + errno = err; + return (fd); +} + +static void +remove_pn_file() +{ + char *path; + + if ((path = name_of_pn_file()) != NULL) { + (void) unlink(path); + (void) free(path); + } +} + +static void +write_pseudonym(esp, inp, len, id) +eap_state *esp; +u_char *inp; +int len, id; +{ + u_char val; + u_char *datp, *digp; + SHA1_CTX ctxt; + u_char dig[SHA_DIGESTSIZE]; + int dsize, fd, olen = len; + + /* + * Do the decoding by working backwards. This eliminates the need + * to save the decoded output in a separate buffer. + */ + val = id; + while (len > 0) { + if ((dsize = len % SHA_DIGESTSIZE) == 0) + dsize = SHA_DIGESTSIZE; + len -= dsize; + datp = inp + len; + SHA1Init(&ctxt); + SHA1Update(&ctxt, &val, 1); + SHA1Update(&ctxt, pcb->eap.es_client.ea_skey, SESSION_KEY_LEN); + if (len > 0) { + SHA1Update(&ctxt, datp, SHA_DIGESTSIZE); + } else { + SHA1Update(&ctxt, pcb->eap.es_client.ea_name, + pcb->eap.es_client.ea_namelen); + } + SHA1Final(dig, &ctxt); + for (digp = dig; digp < dig + SHA_DIGESTSIZE; digp++) + *datp++ ^= *digp; + } + + /* Now check that the result is sane */ + if (olen <= 0 || *inp + 1 > olen) { + ppp_dbglog(("EAP: decoded pseudonym is unusable <%.*B>", olen, inp)); + return; + } + + /* Save it away */ + fd = open_pn_file(O_WRONLY | O_CREAT | O_TRUNC); + if (fd < 0) { + ppp_dbglog(("EAP: error saving pseudonym: %m")); + return; + } + len = write(fd, inp + 1, *inp); + if (close(fd) != -1 && len == *inp) { + ppp_dbglog(("EAP: saved pseudonym")); + pcb->eap.es_usedpseudo = 0; + } else { + ppp_dbglog(("EAP: failed to save pseudonym")); + remove_pn_file(); + } +} +#endif /* USE_SRP */ + +/* + * eap_request - Receive EAP Request message (client mode). + */ +static void eap_request(ppp_pcb *pcb, u_char *inp, int id, int len) { + u_char typenum; + u_char vallen; + int secret_len; + char secret[MAXSECRETLEN]; + char rhostname[MAXNAMELEN]; + lwip_md5_context mdContext; + u_char hash[MD5_SIGNATURE_SIZE]; +#ifdef USE_SRP + struct t_client *tc; + struct t_num sval, gval, Nval, *Ap, Bval; + u_char vals[2]; + SHA1_CTX ctxt; + u_char dig[SHA_DIGESTSIZE]; + int fd; +#endif /* USE_SRP */ + + /* + * Ignore requests if we're not open + */ + if (pcb->eap.es_client.ea_state <= eapClosed) + return; + + /* + * Note: we update es_client.ea_id *only if* a Response + * message is being generated. Otherwise, we leave it the + * same for duplicate detection purposes. + */ + + pcb->eap.es_client.ea_requests++; + if (pcb->settings.eap_allow_req != 0 && + pcb->eap.es_client.ea_requests > pcb->settings.eap_allow_req) { + ppp_info(("EAP: received too many Request messages")); + if (pcb->settings.eap_req_time > 0) { + UNTIMEOUT(eap_client_timeout, pcb); + } + auth_withpeer_fail(pcb, PPP_EAP); + return; + } + + if (len <= 0) { + ppp_error(("EAP: empty Request message discarded")); + return; + } + + GETCHAR(typenum, inp); + len--; + + switch (typenum) { + case EAPT_IDENTITY: + if (len > 0) + ppp_info(("EAP: Identity prompt \"%.*q\"", len, inp)); +#ifdef USE_SRP + if (pcb->eap.es_usepseudo && + (pcb->eap.es_usedpseudo == 0 || + (pcb->eap.es_usedpseudo == 1 && + id == pcb->eap.es_client.ea_id))) { + pcb->eap.es_usedpseudo = 1; + /* Try to get a pseudonym */ + if ((fd = open_pn_file(O_RDONLY)) >= 0) { + strcpy(rhostname, SRP_PSEUDO_ID); + len = read(fd, rhostname + SRP_PSEUDO_LEN, + sizeof (rhostname) - SRP_PSEUDO_LEN); + /* XXX NAI unsupported */ + if (len > 0) { + eap_send_response(pcb, id, typenum, + rhostname, len + SRP_PSEUDO_LEN); + } + (void) close(fd); + if (len > 0) + break; + } + } + /* Stop using pseudonym now. */ + if (pcb->eap.es_usepseudo && pcb->eap.es_usedpseudo != 2) { + remove_pn_file(); + pcb->eap.es_usedpseudo = 2; + } +#endif /* USE_SRP */ + eap_send_response(pcb, id, typenum, (const u_char*)pcb->eap.es_client.ea_name, + pcb->eap.es_client.ea_namelen); + break; + + case EAPT_NOTIFICATION: + if (len > 0) + ppp_info(("EAP: Notification \"%.*q\"", len, inp)); + eap_send_response(pcb, id, typenum, NULL, 0); + break; + + case EAPT_NAK: + /* + * Avoid the temptation to send Response Nak in reply + * to Request Nak here. It can only lead to trouble. + */ + ppp_warn(("EAP: unexpected Nak in Request; ignored")); + /* Return because we're waiting for something real. */ + return; + + case EAPT_MD5CHAP: + if (len < 1) { + ppp_error(("EAP: received MD5-Challenge with no data")); + /* Bogus request; wait for something real. */ + return; + } + GETCHAR(vallen, inp); + len--; + if (vallen < 8 || vallen > len) { + ppp_error(("EAP: MD5-Challenge with bad length %d (8..%d)", + vallen, len)); + /* Try something better. */ + eap_send_nak(pcb, id, EAPT_SRP); + break; + } + + /* Not so likely to happen. */ + if (len - vallen >= (int)sizeof (rhostname)) { + ppp_dbglog(("EAP: trimming really long peer name down")); + MEMCPY(rhostname, inp + vallen, sizeof (rhostname) - 1); + rhostname[sizeof (rhostname) - 1] = '\0'; + } else { + MEMCPY(rhostname, inp + vallen, len - vallen); + rhostname[len - vallen] = '\0'; + } + +#if PPP_REMOTENAME + /* In case the remote doesn't give us his name. */ + if (pcb->settings.explicit_remote || + (pcb->settings.remote_name[0] != '\0' && vallen == len)) + strlcpy(rhostname, pcb->settings.remote_name, sizeof (rhostname)); +#endif /* PPP_REMOTENAME */ + + /* + * Get the secret for authenticating ourselves with + * the specified host. + */ + if (!get_secret(pcb, pcb->eap.es_client.ea_name, + rhostname, secret, &secret_len, 0)) { + ppp_dbglog(("EAP: no MD5 secret for auth to %q", rhostname)); + eap_send_nak(pcb, id, EAPT_SRP); + break; + } + lwip_md5_init(&mdContext); + lwip_md5_starts(&mdContext); + typenum = id; + lwip_md5_update(&mdContext, &typenum, 1); + lwip_md5_update(&mdContext, (u_char *)secret, secret_len); + BZERO(secret, sizeof (secret)); + lwip_md5_update(&mdContext, inp, vallen); + lwip_md5_finish(&mdContext, hash); + lwip_md5_free(&mdContext); + eap_chap_response(pcb, id, hash, pcb->eap.es_client.ea_name, + pcb->eap.es_client.ea_namelen); + break; + +#ifdef USE_SRP + case EAPT_SRP: + if (len < 1) { + ppp_error(("EAP: received empty SRP Request")); + /* Bogus request; wait for something real. */ + return; + } + + /* Get subtype */ + GETCHAR(vallen, inp); + len--; + switch (vallen) { + case EAPSRP_CHALLENGE: + tc = NULL; + if (pcb->eap.es_client.ea_session != NULL) { + tc = (struct t_client *)pcb->eap.es_client. + ea_session; + /* + * If this is a new challenge, then start + * over with a new client session context. + * Otherwise, just resend last response. + */ + if (id != pcb->eap.es_client.ea_id) { + t_clientclose(tc); + pcb->eap.es_client.ea_session = NULL; + tc = NULL; + } + } + /* No session key just yet */ + pcb->eap.es_client.ea_skey = NULL; + if (tc == NULL) { + int rhostnamelen; + + GETCHAR(vallen, inp); + len--; + if (vallen >= len) { + ppp_error(("EAP: badly-formed SRP Challenge" + " (name)")); + /* Ignore badly-formed messages */ + return; + } + MEMCPY(rhostname, inp, vallen); + rhostname[vallen] = '\0'; + INCPTR(vallen, inp); + len -= vallen; + + /* + * In case the remote doesn't give us his name, + * use configured name. + */ + if (explicit_remote || + (remote_name[0] != '\0' && vallen == 0)) { + strlcpy(rhostname, remote_name, + sizeof (rhostname)); + } + + rhostnamelen = (int)strlen(rhostname); + if (rhostnamelen > MAXNAMELEN) { + rhostnamelen = MAXNAMELEN; + } + MEMCPY(pcb->eap.es_client.ea_peer, rhostname, rhostnamelen); + pcb->eap.es_client.ea_peer[rhostnamelen] = '\0'; + pcb->eap.es_client.ea_peerlen = rhostnamelen; + + GETCHAR(vallen, inp); + len--; + if (vallen >= len) { + ppp_error(("EAP: badly-formed SRP Challenge" + " (s)")); + /* Ignore badly-formed messages */ + return; + } + sval.data = inp; + sval.len = vallen; + INCPTR(vallen, inp); + len -= vallen; + + GETCHAR(vallen, inp); + len--; + if (vallen > len) { + ppp_error(("EAP: badly-formed SRP Challenge" + " (g)")); + /* Ignore badly-formed messages */ + return; + } + /* If no generator present, then use value 2 */ + if (vallen == 0) { + gval.data = (u_char *)"\002"; + gval.len = 1; + } else { + gval.data = inp; + gval.len = vallen; + } + INCPTR(vallen, inp); + len -= vallen; + + /* + * If no modulus present, then use well-known + * value. + */ + if (len == 0) { + Nval.data = (u_char *)wkmodulus; + Nval.len = sizeof (wkmodulus); + } else { + Nval.data = inp; + Nval.len = len; + } + tc = t_clientopen(pcb->eap.es_client.ea_name, + &Nval, &gval, &sval); + if (tc == NULL) { + eap_send_nak(pcb, id, EAPT_MD5CHAP); + break; + } + pcb->eap.es_client.ea_session = (void *)tc; + + /* Add Challenge ID & type to verifier */ + vals[0] = id; + vals[1] = EAPT_SRP; + t_clientaddexdata(tc, vals, 2); + } + Ap = t_clientgenexp(tc); + eap_srp_response(esp, id, EAPSRP_CKEY, Ap->data, + Ap->len); + break; + + case EAPSRP_SKEY: + tc = (struct t_client *)pcb->eap.es_client.ea_session; + if (tc == NULL) { + ppp_warn(("EAP: peer sent Subtype 2 without 1")); + eap_send_nak(pcb, id, EAPT_MD5CHAP); + break; + } + if (pcb->eap.es_client.ea_skey != NULL) { + /* + * ID number should not change here. Warn + * if it does (but otherwise ignore). + */ + if (id != pcb->eap.es_client.ea_id) { + ppp_warn(("EAP: ID changed from %d to %d " + "in SRP Subtype 2 rexmit", + pcb->eap.es_client.ea_id, id)); + } + } else { + if (get_srp_secret(pcb->eap.es_unit, + pcb->eap.es_client.ea_name, + pcb->eap.es_client.ea_peer, secret, 0) == 0) { + /* + * Can't work with this peer because + * the secret is missing. Just give + * up. + */ + eap_send_nak(pcb, id, EAPT_MD5CHAP); + break; + } + Bval.data = inp; + Bval.len = len; + t_clientpasswd(tc, secret); + BZERO(secret, sizeof (secret)); + pcb->eap.es_client.ea_skey = + t_clientgetkey(tc, &Bval); + if (pcb->eap.es_client.ea_skey == NULL) { + /* Server is rogue; stop now */ + ppp_error(("EAP: SRP server is rogue")); + goto client_failure; + } + } + eap_srpval_response(esp, id, SRPVAL_EBIT, + t_clientresponse(tc)); + break; + + case EAPSRP_SVALIDATOR: + tc = (struct t_client *)pcb->eap.es_client.ea_session; + if (tc == NULL || pcb->eap.es_client.ea_skey == NULL) { + ppp_warn(("EAP: peer sent Subtype 3 without 1/2")); + eap_send_nak(pcb, id, EAPT_MD5CHAP); + break; + } + /* + * If we're already open, then this ought to be a + * duplicate. Otherwise, check that the server is + * who we think it is. + */ + if (pcb->eap.es_client.ea_state == eapOpen) { + if (id != pcb->eap.es_client.ea_id) { + ppp_warn(("EAP: ID changed from %d to %d " + "in SRP Subtype 3 rexmit", + pcb->eap.es_client.ea_id, id)); + } + } else { + len -= sizeof (u32_t) + SHA_DIGESTSIZE; + if (len < 0 || t_clientverify(tc, inp + + sizeof (u32_t)) != 0) { + ppp_error(("EAP: SRP server verification " + "failed")); + goto client_failure; + } + GETLONG(pcb->eap.es_client.ea_keyflags, inp); + /* Save pseudonym if user wants it. */ + if (len > 0 && pcb->eap.es_usepseudo) { + INCPTR(SHA_DIGESTSIZE, inp); + write_pseudonym(esp, inp, len, id); + } + } + /* + * We've verified our peer. We're now mostly done, + * except for waiting on the regular EAP Success + * message. + */ + eap_srp_response(esp, id, EAPSRP_ACK, NULL, 0); + break; + + case EAPSRP_LWRECHALLENGE: + if (len < 4) { + ppp_warn(("EAP: malformed Lightweight rechallenge")); + return; + } + SHA1Init(&ctxt); + vals[0] = id; + SHA1Update(&ctxt, vals, 1); + SHA1Update(&ctxt, pcb->eap.es_client.ea_skey, + SESSION_KEY_LEN); + SHA1Update(&ctxt, inp, len); + SHA1Update(&ctxt, pcb->eap.es_client.ea_name, + pcb->eap.es_client.ea_namelen); + SHA1Final(dig, &ctxt); + eap_srp_response(esp, id, EAPSRP_LWRECHALLENGE, dig, + SHA_DIGESTSIZE); + break; + + default: + ppp_error(("EAP: unknown SRP Subtype %d", vallen)); + eap_send_nak(pcb, id, EAPT_MD5CHAP); + break; + } + break; +#endif /* USE_SRP */ + + default: + ppp_info(("EAP: unknown authentication type %d; Naking", typenum)); + eap_send_nak(pcb, id, EAPT_SRP); + break; + } + + if (pcb->settings.eap_req_time > 0) { + UNTIMEOUT(eap_client_timeout, pcb); + TIMEOUT(eap_client_timeout, pcb, + pcb->settings.eap_req_time); + } + return; + +#ifdef USE_SRP +client_failure: + pcb->eap.es_client.ea_state = eapBadAuth; + if (pcb->settings.eap_req_time > 0) { + UNTIMEOUT(eap_client_timeout, (void *)esp); + } + pcb->eap.es_client.ea_session = NULL; + t_clientclose(tc); + auth_withpeer_fail(pcb, PPP_EAP); +#endif /* USE_SRP */ +} + +#if PPP_SERVER +/* + * eap_response - Receive EAP Response message (server mode). + */ +static void eap_response(ppp_pcb *pcb, u_char *inp, int id, int len) { + u_char typenum; + u_char vallen; + int secret_len; + char secret[MAXSECRETLEN]; + char rhostname[MAXNAMELEN]; + lwip_md5_context mdContext; + u_char hash[MD5_SIGNATURE_SIZE]; +#ifdef USE_SRP + struct t_server *ts; + struct t_num A; + SHA1_CTX ctxt; + u_char dig[SHA_DIGESTSIZE]; +#endif /* USE_SRP */ + + /* + * Ignore responses if we're not open + */ + if (pcb->eap.es_server.ea_state <= eapClosed) + return; + + if (pcb->eap.es_server.ea_id != id) { + ppp_dbglog(("EAP: discarding Response %d; expected ID %d", id, + pcb->eap.es_server.ea_id)); + return; + } + + pcb->eap.es_server.ea_responses++; + + if (len <= 0) { + ppp_error(("EAP: empty Response message discarded")); + return; + } + + GETCHAR(typenum, inp); + len--; + + switch (typenum) { + case EAPT_IDENTITY: + if (pcb->eap.es_server.ea_state != eapIdentify) { + ppp_dbglog(("EAP discarding unwanted Identify \"%.q\"", len, + inp)); + break; + } + ppp_info(("EAP: unauthenticated peer name \"%.*q\"", len, inp)); + if (len > MAXNAMELEN) { + len = MAXNAMELEN; + } + MEMCPY(pcb->eap.es_server.ea_peer, inp, len); + pcb->eap.es_server.ea_peer[len] = '\0'; + pcb->eap.es_server.ea_peerlen = len; + eap_figure_next_state(pcb, 0); + break; + + case EAPT_NOTIFICATION: + ppp_dbglog(("EAP unexpected Notification; response discarded")); + break; + + case EAPT_NAK: + if (len < 1) { + ppp_info(("EAP: Nak Response with no suggested protocol")); + eap_figure_next_state(pcb, 1); + break; + } + + GETCHAR(vallen, inp); + len--; + + if ( +#if PPP_REMOTENAME + !pcb->explicit_remote && +#endif /* PPP_REMOTENAME */ + pcb->eap.es_server.ea_state == eapIdentify){ + /* Peer cannot Nak Identify Request */ + eap_figure_next_state(pcb, 1); + break; + } + + switch (vallen) { + case EAPT_SRP: + /* Run through SRP validator selection again. */ + pcb->eap.es_server.ea_state = eapIdentify; + eap_figure_next_state(pcb, 0); + break; + + case EAPT_MD5CHAP: + pcb->eap.es_server.ea_state = eapMD5Chall; + break; + + default: + ppp_dbglog(("EAP: peer requesting unknown Type %d", vallen)); + switch (pcb->eap.es_server.ea_state) { + case eapSRP1: + case eapSRP2: + case eapSRP3: + pcb->eap.es_server.ea_state = eapMD5Chall; + break; + case eapMD5Chall: + case eapSRP4: + pcb->eap.es_server.ea_state = eapIdentify; + eap_figure_next_state(pcb, 0); + break; + default: + break; + } + break; + } + break; + + case EAPT_MD5CHAP: + if (pcb->eap.es_server.ea_state != eapMD5Chall) { + ppp_error(("EAP: unexpected MD5-Response")); + eap_figure_next_state(pcb, 1); + break; + } + if (len < 1) { + ppp_error(("EAP: received MD5-Response with no data")); + eap_figure_next_state(pcb, 1); + break; + } + GETCHAR(vallen, inp); + len--; + if (vallen != 16 || vallen > len) { + ppp_error(("EAP: MD5-Response with bad length %d", vallen)); + eap_figure_next_state(pcb, 1); + break; + } + + /* Not so likely to happen. */ + if (len - vallen >= (int)sizeof (rhostname)) { + ppp_dbglog(("EAP: trimming really long peer name down")); + MEMCPY(rhostname, inp + vallen, sizeof (rhostname) - 1); + rhostname[sizeof (rhostname) - 1] = '\0'; + } else { + MEMCPY(rhostname, inp + vallen, len - vallen); + rhostname[len - vallen] = '\0'; + } + +#if PPP_REMOTENAME + /* In case the remote doesn't give us his name. */ + if (explicit_remote || + (remote_name[0] != '\0' && vallen == len)) + strlcpy(rhostname, remote_name, sizeof (rhostname)); +#endif /* PPP_REMOTENAME */ + + /* + * Get the secret for authenticating the specified + * host. + */ + if (!get_secret(pcb, rhostname, + pcb->eap.es_server.ea_name, secret, &secret_len, 1)) { + ppp_dbglog(("EAP: no MD5 secret for auth of %q", rhostname)); + eap_send_failure(pcb); + break; + } + lwip_md5_init(&mdContext); + lwip_md5_starts(&mdContext); + lwip_md5_update(&mdContext, &pcb->eap.es_server.ea_id, 1); + lwip_md5_update(&mdContext, (u_char *)secret, secret_len); + BZERO(secret, sizeof (secret)); + lwip_md5_update(&mdContext, pcb->eap.es_challenge, pcb->eap.es_challen); + lwip_md5_finish(&mdContext, hash); + lwip_md5_free(&mdContext); + if (BCMP(hash, inp, MD5_SIGNATURE_SIZE) != 0) { + eap_send_failure(pcb); + break; + } + pcb->eap.es_server.ea_type = EAPT_MD5CHAP; + eap_send_success(pcb); + eap_figure_next_state(pcb, 0); + if (pcb->eap.es_rechallenge != 0) + TIMEOUT(eap_rechallenge, pcb, pcb->eap.es_rechallenge); + break; + +#ifdef USE_SRP + case EAPT_SRP: + if (len < 1) { + ppp_error(("EAP: empty SRP Response")); + eap_figure_next_state(pcb, 1); + break; + } + GETCHAR(typenum, inp); + len--; + switch (typenum) { + case EAPSRP_CKEY: + if (pcb->eap.es_server.ea_state != eapSRP1) { + ppp_error(("EAP: unexpected SRP Subtype 1 Response")); + eap_figure_next_state(pcb, 1); + break; + } + A.data = inp; + A.len = len; + ts = (struct t_server *)pcb->eap.es_server.ea_session; + assert(ts != NULL); + pcb->eap.es_server.ea_skey = t_servergetkey(ts, &A); + if (pcb->eap.es_server.ea_skey == NULL) { + /* Client's A value is bogus; terminate now */ + ppp_error(("EAP: bogus A value from client")); + eap_send_failure(pcb); + } else { + eap_figure_next_state(pcb, 0); + } + break; + + case EAPSRP_CVALIDATOR: + if (pcb->eap.es_server.ea_state != eapSRP2) { + ppp_error(("EAP: unexpected SRP Subtype 2 Response")); + eap_figure_next_state(pcb, 1); + break; + } + if (len < sizeof (u32_t) + SHA_DIGESTSIZE) { + ppp_error(("EAP: M1 length %d < %d", len, + sizeof (u32_t) + SHA_DIGESTSIZE)); + eap_figure_next_state(pcb, 1); + break; + } + GETLONG(pcb->eap.es_server.ea_keyflags, inp); + ts = (struct t_server *)pcb->eap.es_server.ea_session; + assert(ts != NULL); + if (t_serververify(ts, inp)) { + ppp_info(("EAP: unable to validate client identity")); + eap_send_failure(pcb); + break; + } + eap_figure_next_state(pcb, 0); + break; + + case EAPSRP_ACK: + if (pcb->eap.es_server.ea_state != eapSRP3) { + ppp_error(("EAP: unexpected SRP Subtype 3 Response")); + eap_send_failure(esp); + break; + } + pcb->eap.es_server.ea_type = EAPT_SRP; + eap_send_success(pcb, esp); + eap_figure_next_state(pcb, 0); + if (pcb->eap.es_rechallenge != 0) + TIMEOUT(eap_rechallenge, pcb, + pcb->eap.es_rechallenge); + if (pcb->eap.es_lwrechallenge != 0) + TIMEOUT(srp_lwrechallenge, pcb, + pcb->eap.es_lwrechallenge); + break; + + case EAPSRP_LWRECHALLENGE: + if (pcb->eap.es_server.ea_state != eapSRP4) { + ppp_info(("EAP: unexpected SRP Subtype 4 Response")); + return; + } + if (len != SHA_DIGESTSIZE) { + ppp_error(("EAP: bad Lightweight rechallenge " + "response")); + return; + } + SHA1Init(&ctxt); + vallen = id; + SHA1Update(&ctxt, &vallen, 1); + SHA1Update(&ctxt, pcb->eap.es_server.ea_skey, + SESSION_KEY_LEN); + SHA1Update(&ctxt, pcb->eap.es_challenge, pcb->eap.es_challen); + SHA1Update(&ctxt, pcb->eap.es_server.ea_peer, + pcb->eap.es_server.ea_peerlen); + SHA1Final(dig, &ctxt); + if (BCMP(dig, inp, SHA_DIGESTSIZE) != 0) { + ppp_error(("EAP: failed Lightweight rechallenge")); + eap_send_failure(pcb); + break; + } + pcb->eap.es_server.ea_state = eapOpen; + if (pcb->eap.es_lwrechallenge != 0) + TIMEOUT(srp_lwrechallenge, esp, + pcb->eap.es_lwrechallenge); + break; + } + break; +#endif /* USE_SRP */ + + default: + /* This can't happen. */ + ppp_error(("EAP: unknown Response type %d; ignored", typenum)); + return; + } + + if (pcb->settings.eap_timeout_time > 0) { + UNTIMEOUT(eap_server_timeout, pcb); + } + + if (pcb->eap.es_server.ea_state != eapBadAuth && + pcb->eap.es_server.ea_state != eapOpen) { + pcb->eap.es_server.ea_id++; + eap_send_request(pcb); + } +} +#endif /* PPP_SERVER */ + +/* + * eap_success - Receive EAP Success message (client mode). + */ +static void eap_success(ppp_pcb *pcb, u_char *inp, int id, int len) { + LWIP_UNUSED_ARG(id); + + if (pcb->eap.es_client.ea_state != eapOpen && !eap_client_active(pcb)) { + ppp_dbglog(("EAP unexpected success message in state %s (%d)", + eap_state_name(pcb->eap.es_client.ea_state), + pcb->eap.es_client.ea_state)); + return; + } + + if (pcb->settings.eap_req_time > 0) { + UNTIMEOUT(eap_client_timeout, pcb); + } + + if (len > 0) { + /* This is odd. The spec doesn't allow for this. */ + PRINTMSG(inp, len); + } + + pcb->eap.es_client.ea_state = eapOpen; + auth_withpeer_success(pcb, PPP_EAP, 0); +} + +/* + * eap_failure - Receive EAP Failure message (client mode). + */ +static void eap_failure(ppp_pcb *pcb, u_char *inp, int id, int len) { + LWIP_UNUSED_ARG(id); + + /* + * Ignore failure messages if we're not open + */ + if (pcb->eap.es_client.ea_state <= eapClosed) + return; + + if (!eap_client_active(pcb)) { + ppp_dbglog(("EAP unexpected failure message in state %s (%d)", + eap_state_name(pcb->eap.es_client.ea_state), + pcb->eap.es_client.ea_state)); + } + + if (pcb->settings.eap_req_time > 0) { + UNTIMEOUT(eap_client_timeout, pcb); + } + + if (len > 0) { + /* This is odd. The spec doesn't allow for this. */ + PRINTMSG(inp, len); + } + + pcb->eap.es_client.ea_state = eapBadAuth; + + ppp_error(("EAP: peer reports authentication failure")); + auth_withpeer_fail(pcb, PPP_EAP); +} + +/* + * eap_input - Handle received EAP message. + */ +static void eap_input(ppp_pcb *pcb, u_char *inp, int inlen) { + u_char code, id; + int len; + + /* + * Parse header (code, id and length). If packet too short, + * drop it. + */ + if (inlen < EAP_HEADERLEN) { + ppp_error(("EAP: packet too short: %d < %d", inlen, EAP_HEADERLEN)); + return; + } + GETCHAR(code, inp); + GETCHAR(id, inp); + GETSHORT(len, inp); + if (len < EAP_HEADERLEN || len > inlen) { + ppp_error(("EAP: packet has illegal length field %d (%d..%d)", len, + EAP_HEADERLEN, inlen)); + return; + } + len -= EAP_HEADERLEN; + + /* Dispatch based on message code */ + switch (code) { + case EAP_REQUEST: + eap_request(pcb, inp, id, len); + break; + +#if PPP_SERVER + case EAP_RESPONSE: + eap_response(pcb, inp, id, len); + break; +#endif /* PPP_SERVER */ + + case EAP_SUCCESS: + eap_success(pcb, inp, id, len); + break; + + case EAP_FAILURE: + eap_failure(pcb, inp, id, len); + break; + + default: /* XXX Need code reject */ + /* Note: it's not legal to send EAP Nak here. */ + ppp_warn(("EAP: unknown code %d received", code)); + break; + } +} + +#if PRINTPKT_SUPPORT +/* + * eap_printpkt - print the contents of an EAP packet. + */ +static const char* const eap_codenames[] = { + "Request", "Response", "Success", "Failure" +}; + +static const char* const eap_typenames[] = { + "Identity", "Notification", "Nak", "MD5-Challenge", + "OTP", "Generic-Token", NULL, NULL, + "RSA", "DSS", "KEA", "KEA-Validate", + "TLS", "Defender", "Windows 2000", "Arcot", + "Cisco", "Nokia", "SRP" +}; + +static int eap_printpkt(const u_char *inp, int inlen, void (*printer) (void *, const char *, ...), void *arg) { + int code, id, len, rtype, vallen; + const u_char *pstart; + u32_t uval; + + if (inlen < EAP_HEADERLEN) + return (0); + pstart = inp; + GETCHAR(code, inp); + GETCHAR(id, inp); + GETSHORT(len, inp); + if (len < EAP_HEADERLEN || len > inlen) + return (0); + + if (code >= 1 && code <= (int)LWIP_ARRAYSIZE(eap_codenames)) + printer(arg, " %s", eap_codenames[code-1]); + else + printer(arg, " code=0x%x", code); + printer(arg, " id=0x%x", id); + len -= EAP_HEADERLEN; + switch (code) { + case EAP_REQUEST: + if (len < 1) { + printer(arg, " "); + break; + } + GETCHAR(rtype, inp); + len--; + if (rtype >= 1 && rtype <= (int)LWIP_ARRAYSIZE(eap_typenames)) + printer(arg, " %s", eap_typenames[rtype-1]); + else + printer(arg, " type=0x%x", rtype); + switch (rtype) { + case EAPT_IDENTITY: + case EAPT_NOTIFICATION: + if (len > 0) { + printer(arg, " "); + INCPTR(len, inp); + len = 0; + } else { + printer(arg, " "); + } + break; + + case EAPT_MD5CHAP: + if (len <= 0) + break; + GETCHAR(vallen, inp); + len--; + if (vallen > len) + goto truncated; + printer(arg, " ", vallen, inp); + INCPTR(vallen, inp); + len -= vallen; + if (len > 0) { + printer(arg, " "); + INCPTR(len, inp); + len = 0; + } else { + printer(arg, " "); + } + break; + + case EAPT_SRP: + if (len < 3) + goto truncated; + GETCHAR(vallen, inp); + len--; + printer(arg, "-%d", vallen); + switch (vallen) { + case EAPSRP_CHALLENGE: + GETCHAR(vallen, inp); + len--; + if (vallen >= len) + goto truncated; + if (vallen > 0) { + printer(arg, " "); + } else { + printer(arg, " "); + } + INCPTR(vallen, inp); + len -= vallen; + GETCHAR(vallen, inp); + len--; + if (vallen >= len) + goto truncated; + printer(arg, " ", vallen, inp); + INCPTR(vallen, inp); + len -= vallen; + GETCHAR(vallen, inp); + len--; + if (vallen > len) + goto truncated; + if (vallen == 0) { + printer(arg, " "); + } else { + printer(arg, " ", vallen, inp); + } + INCPTR(vallen, inp); + len -= vallen; + if (len == 0) { + printer(arg, " "); + } else { + printer(arg, " ", len, inp); + INCPTR(len, inp); + len = 0; + } + break; + + case EAPSRP_SKEY: + printer(arg, " ", len, inp); + INCPTR(len, inp); + len = 0; + break; + + case EAPSRP_SVALIDATOR: + if (len < (int)sizeof (u32_t)) + break; + GETLONG(uval, inp); + len -= sizeof (u32_t); + if (uval & SRPVAL_EBIT) { + printer(arg, " E"); + uval &= ~SRPVAL_EBIT; + } + if (uval != 0) { + printer(arg, " f<%X>", uval); + } + if ((vallen = len) > SHA_DIGESTSIZE) + vallen = SHA_DIGESTSIZE; + printer(arg, " ", len, inp, + len < SHA_DIGESTSIZE ? "?" : ""); + INCPTR(vallen, inp); + len -= vallen; + if (len > 0) { + printer(arg, " ", len, inp); + INCPTR(len, inp); + len = 0; + } + break; + + case EAPSRP_LWRECHALLENGE: + printer(arg, " ", len, inp); + INCPTR(len, inp); + len = 0; + break; + default: + break; + } + break; + default: + break; + } + break; + + case EAP_RESPONSE: + if (len < 1) + break; + GETCHAR(rtype, inp); + len--; + if (rtype >= 1 && rtype <= (int)LWIP_ARRAYSIZE(eap_typenames)) + printer(arg, " %s", eap_typenames[rtype-1]); + else + printer(arg, " type=0x%x", rtype); + switch (rtype) { + case EAPT_IDENTITY: + if (len > 0) { + printer(arg, " "); + INCPTR(len, inp); + len = 0; + } + break; + + case EAPT_NAK: + if (len <= 0) { + printer(arg, " "); + break; + } + GETCHAR(rtype, inp); + len--; + printer(arg, " = 1 && rtype < (int)LWIP_ARRAYSIZE(eap_typenames)) + printer(arg, " (%s)", eap_typenames[rtype-1]); + printer(arg, ">"); + break; + + case EAPT_MD5CHAP: + if (len <= 0) { + printer(arg, " "); + break; + } + GETCHAR(vallen, inp); + len--; + if (vallen > len) + goto truncated; + printer(arg, " ", vallen, inp); + INCPTR(vallen, inp); + len -= vallen; + if (len > 0) { + printer(arg, " "); + INCPTR(len, inp); + len = 0; + } else { + printer(arg, " "); + } + break; + + case EAPT_SRP: + if (len < 1) + goto truncated; + GETCHAR(vallen, inp); + len--; + printer(arg, "-%d", vallen); + switch (vallen) { + case EAPSRP_CKEY: + printer(arg, " ", len, inp); + INCPTR(len, inp); + len = 0; + break; + + case EAPSRP_CVALIDATOR: + if (len < (int)sizeof (u32_t)) + break; + GETLONG(uval, inp); + len -= sizeof (u32_t); + if (uval & SRPVAL_EBIT) { + printer(arg, " E"); + uval &= ~SRPVAL_EBIT; + } + if (uval != 0) { + printer(arg, " f<%X>", uval); + } + printer(arg, " ", len, inp, + len == SHA_DIGESTSIZE ? "" : "?"); + INCPTR(len, inp); + len = 0; + break; + + case EAPSRP_ACK: + break; + + case EAPSRP_LWRECHALLENGE: + printer(arg, " ", len, inp, + len == SHA_DIGESTSIZE ? "" : "?"); + if ((vallen = len) > SHA_DIGESTSIZE) + vallen = SHA_DIGESTSIZE; + INCPTR(vallen, inp); + len -= vallen; + break; + default: + break; + } + break; + default: + break; + } + break; + + case EAP_SUCCESS: /* No payload expected for these! */ + case EAP_FAILURE: + default: + break; + + truncated: + printer(arg, " "); + break; + } + + if (len > 8) + printer(arg, "%8B...", inp); + else if (len > 0) + printer(arg, "%.*B", len, inp); + INCPTR(len, inp); + + return (inp - pstart); +} +#endif /* PRINTPKT_SUPPORT */ + +#endif /* PPP_SUPPORT && EAP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/eui64.c b/middleware/lwip/src/netif/ppp/eui64.c new file mode 100644 index 0000000..01493bc --- /dev/null +++ b/middleware/lwip/src/netif/ppp/eui64.c @@ -0,0 +1,56 @@ +/* + * eui64.c - EUI64 routines for IPv6CP. + * + * Copyright (c) 1999 Tommi Komulainen. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Tommi Komulainen + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: eui64.c,v 1.6 2002/12/04 23:03:32 paulus Exp $ + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPP_IPV6_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include "netif/ppp/ppp_impl.h" +#include "netif/ppp/eui64.h" + +/* + * eui64_ntoa - Make an ascii representation of an interface identifier + */ +char *eui64_ntoa(eui64_t e) { + static char buf[20]; + + sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x", + e.e8[0], e.e8[1], e.e8[2], e.e8[3], + e.e8[4], e.e8[5], e.e8[6], e.e8[7]); + return buf; +} + +#endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/fsm.c b/middleware/lwip/src/netif/ppp/fsm.c new file mode 100644 index 0000000..d299f86 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/fsm.c @@ -0,0 +1,799 @@ +/* + * fsm.c - {Link, IP} Control Protocol Finite State Machine. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +/* + * @todo: + * Randomize fsm id on link/init. + * Deal with variable outgoing MTU. + */ + +#if 0 /* UNUSED */ +#include +#include +#include +#endif /* UNUSED */ + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/fsm.h" + +static void fsm_timeout (void *); +static void fsm_rconfreq(fsm *f, u_char id, u_char *inp, int len); +static void fsm_rconfack(fsm *f, int id, u_char *inp, int len); +static void fsm_rconfnakrej(fsm *f, int code, int id, u_char *inp, int len); +static void fsm_rtermreq(fsm *f, int id, u_char *p, int len); +static void fsm_rtermack(fsm *f); +static void fsm_rcoderej(fsm *f, u_char *inp, int len); +static void fsm_sconfreq(fsm *f, int retransmit); + +#define PROTO_NAME(f) ((f)->callbacks->proto_name) + +/* + * fsm_init - Initialize fsm. + * + * Initialize fsm state. + */ +void fsm_init(fsm *f) { + ppp_pcb *pcb = f->pcb; + f->state = PPP_FSM_INITIAL; + f->flags = 0; + f->id = 0; /* XXX Start with random id? */ + f->maxnakloops = pcb->settings.fsm_max_nak_loops; + f->term_reason_len = 0; +} + + +/* + * fsm_lowerup - The lower layer is up. + */ +void fsm_lowerup(fsm *f) { + switch( f->state ){ + case PPP_FSM_INITIAL: + f->state = PPP_FSM_CLOSED; + break; + + case PPP_FSM_STARTING: + if( f->flags & OPT_SILENT ) + f->state = PPP_FSM_STOPPED; + else { + /* Send an initial configure-request */ + fsm_sconfreq(f, 0); + f->state = PPP_FSM_REQSENT; + } + break; + + default: + FSMDEBUG(("%s: Up event in state %d!", PROTO_NAME(f), f->state)); + /* no break */ + } +} + + +/* + * fsm_lowerdown - The lower layer is down. + * + * Cancel all timeouts and inform upper layers. + */ +void fsm_lowerdown(fsm *f) { + switch( f->state ){ + case PPP_FSM_CLOSED: + f->state = PPP_FSM_INITIAL; + break; + + case PPP_FSM_STOPPED: + f->state = PPP_FSM_STARTING; + if( f->callbacks->starting ) + (*f->callbacks->starting)(f); + break; + + case PPP_FSM_CLOSING: + f->state = PPP_FSM_INITIAL; + UNTIMEOUT(fsm_timeout, f); /* Cancel timeout */ + break; + + case PPP_FSM_STOPPING: + case PPP_FSM_REQSENT: + case PPP_FSM_ACKRCVD: + case PPP_FSM_ACKSENT: + f->state = PPP_FSM_STARTING; + UNTIMEOUT(fsm_timeout, f); /* Cancel timeout */ + break; + + case PPP_FSM_OPENED: + if( f->callbacks->down ) + (*f->callbacks->down)(f); + f->state = PPP_FSM_STARTING; + break; + + default: + FSMDEBUG(("%s: Down event in state %d!", PROTO_NAME(f), f->state)); + /* no break */ + } +} + + +/* + * fsm_open - Link is allowed to come up. + */ +void fsm_open(fsm *f) { + switch( f->state ){ + case PPP_FSM_INITIAL: + f->state = PPP_FSM_STARTING; + if( f->callbacks->starting ) + (*f->callbacks->starting)(f); + break; + + case PPP_FSM_CLOSED: + if( f->flags & OPT_SILENT ) + f->state = PPP_FSM_STOPPED; + else { + /* Send an initial configure-request */ + fsm_sconfreq(f, 0); + f->state = PPP_FSM_REQSENT; + } + break; + + case PPP_FSM_CLOSING: + f->state = PPP_FSM_STOPPING; + /* fall through */ + /* no break */ + case PPP_FSM_STOPPED: + case PPP_FSM_OPENED: + if( f->flags & OPT_RESTART ){ + fsm_lowerdown(f); + fsm_lowerup(f); + } + break; + default: + break; + } +} + +/* + * terminate_layer - Start process of shutting down the FSM + * + * Cancel any timeout running, notify upper layers we're done, and + * send a terminate-request message as configured. + */ +static void terminate_layer(fsm *f, int nextstate) { + ppp_pcb *pcb = f->pcb; + + if( f->state != PPP_FSM_OPENED ) + UNTIMEOUT(fsm_timeout, f); /* Cancel timeout */ + else if( f->callbacks->down ) + (*f->callbacks->down)(f); /* Inform upper layers we're down */ + + /* Init restart counter and send Terminate-Request */ + f->retransmits = pcb->settings.fsm_max_term_transmits; + fsm_sdata(f, TERMREQ, f->reqid = ++f->id, + (const u_char *) f->term_reason, f->term_reason_len); + + if (f->retransmits == 0) { + /* + * User asked for no terminate requests at all; just close it. + * We've already fired off one Terminate-Request just to be nice + * to the peer, but we're not going to wait for a reply. + */ + f->state = nextstate == PPP_FSM_CLOSING ? PPP_FSM_CLOSED : PPP_FSM_STOPPED; + if( f->callbacks->finished ) + (*f->callbacks->finished)(f); + return; + } + + TIMEOUT(fsm_timeout, f, pcb->settings.fsm_timeout_time); + --f->retransmits; + + f->state = nextstate; +} + +/* + * fsm_close - Start closing connection. + * + * Cancel timeouts and either initiate close or possibly go directly to + * the PPP_FSM_CLOSED state. + */ +void fsm_close(fsm *f, const char *reason) { + f->term_reason = reason; + f->term_reason_len = (reason == NULL? 0: (u8_t)LWIP_MIN(strlen(reason), 0xFF) ); + switch( f->state ){ + case PPP_FSM_STARTING: + f->state = PPP_FSM_INITIAL; + break; + case PPP_FSM_STOPPED: + f->state = PPP_FSM_CLOSED; + break; + case PPP_FSM_STOPPING: + f->state = PPP_FSM_CLOSING; + break; + + case PPP_FSM_REQSENT: + case PPP_FSM_ACKRCVD: + case PPP_FSM_ACKSENT: + case PPP_FSM_OPENED: + terminate_layer(f, PPP_FSM_CLOSING); + break; + default: + break; + } +} + + +/* + * fsm_timeout - Timeout expired. + */ +static void fsm_timeout(void *arg) { + fsm *f = (fsm *) arg; + ppp_pcb *pcb = f->pcb; + + switch (f->state) { + case PPP_FSM_CLOSING: + case PPP_FSM_STOPPING: + if( f->retransmits <= 0 ){ + /* + * We've waited for an ack long enough. Peer probably heard us. + */ + f->state = (f->state == PPP_FSM_CLOSING)? PPP_FSM_CLOSED: PPP_FSM_STOPPED; + if( f->callbacks->finished ) + (*f->callbacks->finished)(f); + } else { + /* Send Terminate-Request */ + fsm_sdata(f, TERMREQ, f->reqid = ++f->id, + (const u_char *) f->term_reason, f->term_reason_len); + TIMEOUT(fsm_timeout, f, pcb->settings.fsm_timeout_time); + --f->retransmits; + } + break; + + case PPP_FSM_REQSENT: + case PPP_FSM_ACKRCVD: + case PPP_FSM_ACKSENT: + if (f->retransmits <= 0) { + ppp_warn(("%s: timeout sending Config-Requests", PROTO_NAME(f))); + f->state = PPP_FSM_STOPPED; + if( (f->flags & OPT_PASSIVE) == 0 && f->callbacks->finished ) + (*f->callbacks->finished)(f); + + } else { + /* Retransmit the configure-request */ + if (f->callbacks->retransmit) + (*f->callbacks->retransmit)(f); + fsm_sconfreq(f, 1); /* Re-send Configure-Request */ + if( f->state == PPP_FSM_ACKRCVD ) + f->state = PPP_FSM_REQSENT; + } + break; + + default: + FSMDEBUG(("%s: Timeout event in state %d!", PROTO_NAME(f), f->state)); + /* no break */ + } +} + + +/* + * fsm_input - Input packet. + */ +void fsm_input(fsm *f, u_char *inpacket, int l) { + u_char *inp; + u_char code, id; + int len; + + /* + * Parse header (code, id and length). + * If packet too short, drop it. + */ + inp = inpacket; + if (l < HEADERLEN) { + FSMDEBUG(("fsm_input(%x): Rcvd short header.", f->protocol)); + return; + } + GETCHAR(code, inp); + GETCHAR(id, inp); + GETSHORT(len, inp); + if (len < HEADERLEN) { + FSMDEBUG(("fsm_input(%x): Rcvd illegal length.", f->protocol)); + return; + } + if (len > l) { + FSMDEBUG(("fsm_input(%x): Rcvd short packet.", f->protocol)); + return; + } + len -= HEADERLEN; /* subtract header length */ + + if( f->state == PPP_FSM_INITIAL || f->state == PPP_FSM_STARTING ){ + FSMDEBUG(("fsm_input(%x): Rcvd packet in state %d.", + f->protocol, f->state)); + return; + } + + /* + * Action depends on code. + */ + switch (code) { + case CONFREQ: + fsm_rconfreq(f, id, inp, len); + break; + + case CONFACK: + fsm_rconfack(f, id, inp, len); + break; + + case CONFNAK: + case CONFREJ: + fsm_rconfnakrej(f, code, id, inp, len); + break; + + case TERMREQ: + fsm_rtermreq(f, id, inp, len); + break; + + case TERMACK: + fsm_rtermack(f); + break; + + case CODEREJ: + fsm_rcoderej(f, inp, len); + break; + + default: + if( !f->callbacks->extcode + || !(*f->callbacks->extcode)(f, code, id, inp, len) ) + fsm_sdata(f, CODEREJ, ++f->id, inpacket, len + HEADERLEN); + break; + } +} + + +/* + * fsm_rconfreq - Receive Configure-Request. + */ +static void fsm_rconfreq(fsm *f, u_char id, u_char *inp, int len) { + int code, reject_if_disagree; + + switch( f->state ){ + case PPP_FSM_CLOSED: + /* Go away, we're closed */ + fsm_sdata(f, TERMACK, id, NULL, 0); + return; + case PPP_FSM_CLOSING: + case PPP_FSM_STOPPING: + return; + + case PPP_FSM_OPENED: + /* Go down and restart negotiation */ + if( f->callbacks->down ) + (*f->callbacks->down)(f); /* Inform upper layers */ + fsm_sconfreq(f, 0); /* Send initial Configure-Request */ + f->state = PPP_FSM_REQSENT; + break; + + case PPP_FSM_STOPPED: + /* Negotiation started by our peer */ + fsm_sconfreq(f, 0); /* Send initial Configure-Request */ + f->state = PPP_FSM_REQSENT; + break; + default: + break; + } + + /* + * Pass the requested configuration options + * to protocol-specific code for checking. + */ + if (f->callbacks->reqci){ /* Check CI */ + reject_if_disagree = (f->nakloops >= f->maxnakloops); + code = (*f->callbacks->reqci)(f, inp, &len, reject_if_disagree); + } else if (len) + code = CONFREJ; /* Reject all CI */ + else + code = CONFACK; + + /* send the Ack, Nak or Rej to the peer */ + fsm_sdata(f, code, id, inp, len); + + if (code == CONFACK) { + if (f->state == PPP_FSM_ACKRCVD) { + UNTIMEOUT(fsm_timeout, f); /* Cancel timeout */ + f->state = PPP_FSM_OPENED; + if (f->callbacks->up) + (*f->callbacks->up)(f); /* Inform upper layers */ + } else + f->state = PPP_FSM_ACKSENT; + f->nakloops = 0; + + } else { + /* we sent CONFACK or CONFREJ */ + if (f->state != PPP_FSM_ACKRCVD) + f->state = PPP_FSM_REQSENT; + if( code == CONFNAK ) + ++f->nakloops; + } +} + + +/* + * fsm_rconfack - Receive Configure-Ack. + */ +static void fsm_rconfack(fsm *f, int id, u_char *inp, int len) { + ppp_pcb *pcb = f->pcb; + + if (id != f->reqid || f->seen_ack) /* Expected id? */ + return; /* Nope, toss... */ + if( !(f->callbacks->ackci? (*f->callbacks->ackci)(f, inp, len): + (len == 0)) ){ + /* Ack is bad - ignore it */ + ppp_error(("Received bad configure-ack: %P", inp, len)); + return; + } + f->seen_ack = 1; + f->rnakloops = 0; + + switch (f->state) { + case PPP_FSM_CLOSED: + case PPP_FSM_STOPPED: + fsm_sdata(f, TERMACK, id, NULL, 0); + break; + + case PPP_FSM_REQSENT: + f->state = PPP_FSM_ACKRCVD; + f->retransmits = pcb->settings.fsm_max_conf_req_transmits; + break; + + case PPP_FSM_ACKRCVD: + /* Huh? an extra valid Ack? oh well... */ + UNTIMEOUT(fsm_timeout, f); /* Cancel timeout */ + fsm_sconfreq(f, 0); + f->state = PPP_FSM_REQSENT; + break; + + case PPP_FSM_ACKSENT: + UNTIMEOUT(fsm_timeout, f); /* Cancel timeout */ + f->state = PPP_FSM_OPENED; + f->retransmits = pcb->settings.fsm_max_conf_req_transmits; + if (f->callbacks->up) + (*f->callbacks->up)(f); /* Inform upper layers */ + break; + + case PPP_FSM_OPENED: + /* Go down and restart negotiation */ + if (f->callbacks->down) + (*f->callbacks->down)(f); /* Inform upper layers */ + fsm_sconfreq(f, 0); /* Send initial Configure-Request */ + f->state = PPP_FSM_REQSENT; + break; + default: + break; + } +} + + +/* + * fsm_rconfnakrej - Receive Configure-Nak or Configure-Reject. + */ +static void fsm_rconfnakrej(fsm *f, int code, int id, u_char *inp, int len) { + int ret; + int treat_as_reject; + + if (id != f->reqid || f->seen_ack) /* Expected id? */ + return; /* Nope, toss... */ + + if (code == CONFNAK) { + ++f->rnakloops; + treat_as_reject = (f->rnakloops >= f->maxnakloops); + if (f->callbacks->nakci == NULL + || !(ret = f->callbacks->nakci(f, inp, len, treat_as_reject))) { + ppp_error(("Received bad configure-nak: %P", inp, len)); + return; + } + } else { + f->rnakloops = 0; + if (f->callbacks->rejci == NULL + || !(ret = f->callbacks->rejci(f, inp, len))) { + ppp_error(("Received bad configure-rej: %P", inp, len)); + return; + } + } + + f->seen_ack = 1; + + switch (f->state) { + case PPP_FSM_CLOSED: + case PPP_FSM_STOPPED: + fsm_sdata(f, TERMACK, id, NULL, 0); + break; + + case PPP_FSM_REQSENT: + case PPP_FSM_ACKSENT: + /* They didn't agree to what we wanted - try another request */ + UNTIMEOUT(fsm_timeout, f); /* Cancel timeout */ + if (ret < 0) + f->state = PPP_FSM_STOPPED; /* kludge for stopping CCP */ + else + fsm_sconfreq(f, 0); /* Send Configure-Request */ + break; + + case PPP_FSM_ACKRCVD: + /* Got a Nak/reject when we had already had an Ack?? oh well... */ + UNTIMEOUT(fsm_timeout, f); /* Cancel timeout */ + fsm_sconfreq(f, 0); + f->state = PPP_FSM_REQSENT; + break; + + case PPP_FSM_OPENED: + /* Go down and restart negotiation */ + if (f->callbacks->down) + (*f->callbacks->down)(f); /* Inform upper layers */ + fsm_sconfreq(f, 0); /* Send initial Configure-Request */ + f->state = PPP_FSM_REQSENT; + break; + default: + break; + } +} + + +/* + * fsm_rtermreq - Receive Terminate-Req. + */ +static void fsm_rtermreq(fsm *f, int id, u_char *p, int len) { + ppp_pcb *pcb = f->pcb; + + switch (f->state) { + case PPP_FSM_ACKRCVD: + case PPP_FSM_ACKSENT: + f->state = PPP_FSM_REQSENT; /* Start over but keep trying */ + break; + + case PPP_FSM_OPENED: + if (len > 0) { + ppp_info(("%s terminated by peer (%0.*v)", PROTO_NAME(f), len, p)); + } else + ppp_info(("%s terminated by peer", PROTO_NAME(f))); + f->retransmits = 0; + f->state = PPP_FSM_STOPPING; + if (f->callbacks->down) + (*f->callbacks->down)(f); /* Inform upper layers */ + TIMEOUT(fsm_timeout, f, pcb->settings.fsm_timeout_time); + break; + default: + break; + } + + fsm_sdata(f, TERMACK, id, NULL, 0); +} + + +/* + * fsm_rtermack - Receive Terminate-Ack. + */ +static void fsm_rtermack(fsm *f) { + switch (f->state) { + case PPP_FSM_CLOSING: + UNTIMEOUT(fsm_timeout, f); + f->state = PPP_FSM_CLOSED; + if( f->callbacks->finished ) + (*f->callbacks->finished)(f); + break; + case PPP_FSM_STOPPING: + UNTIMEOUT(fsm_timeout, f); + f->state = PPP_FSM_STOPPED; + if( f->callbacks->finished ) + (*f->callbacks->finished)(f); + break; + + case PPP_FSM_ACKRCVD: + f->state = PPP_FSM_REQSENT; + break; + + case PPP_FSM_OPENED: + if (f->callbacks->down) + (*f->callbacks->down)(f); /* Inform upper layers */ + fsm_sconfreq(f, 0); + f->state = PPP_FSM_REQSENT; + break; + default: + break; + } +} + + +/* + * fsm_rcoderej - Receive an Code-Reject. + */ +static void fsm_rcoderej(fsm *f, u_char *inp, int len) { + u_char code, id; + + if (len < HEADERLEN) { + FSMDEBUG(("fsm_rcoderej: Rcvd short Code-Reject packet!")); + return; + } + GETCHAR(code, inp); + GETCHAR(id, inp); + ppp_warn(("%s: Rcvd Code-Reject for code %d, id %d", PROTO_NAME(f), code, id)); + + if( f->state == PPP_FSM_ACKRCVD ) + f->state = PPP_FSM_REQSENT; +} + + +/* + * fsm_protreject - Peer doesn't speak this protocol. + * + * Treat this as a catastrophic error (RXJ-). + */ +void fsm_protreject(fsm *f) { + switch( f->state ){ + case PPP_FSM_CLOSING: + UNTIMEOUT(fsm_timeout, f); /* Cancel timeout */ + /* fall through */ + /* no break */ + case PPP_FSM_CLOSED: + f->state = PPP_FSM_CLOSED; + if( f->callbacks->finished ) + (*f->callbacks->finished)(f); + break; + + case PPP_FSM_STOPPING: + case PPP_FSM_REQSENT: + case PPP_FSM_ACKRCVD: + case PPP_FSM_ACKSENT: + UNTIMEOUT(fsm_timeout, f); /* Cancel timeout */ + /* fall through */ + /* no break */ + case PPP_FSM_STOPPED: + f->state = PPP_FSM_STOPPED; + if( f->callbacks->finished ) + (*f->callbacks->finished)(f); + break; + + case PPP_FSM_OPENED: + terminate_layer(f, PPP_FSM_STOPPING); + break; + + default: + FSMDEBUG(("%s: Protocol-reject event in state %d!", + PROTO_NAME(f), f->state)); + /* no break */ + } +} + + +/* + * fsm_sconfreq - Send a Configure-Request. + */ +static void fsm_sconfreq(fsm *f, int retransmit) { + ppp_pcb *pcb = f->pcb; + struct pbuf *p; + u_char *outp; + int cilen; + + if( f->state != PPP_FSM_REQSENT && f->state != PPP_FSM_ACKRCVD && f->state != PPP_FSM_ACKSENT ){ + /* Not currently negotiating - reset options */ + if( f->callbacks->resetci ) + (*f->callbacks->resetci)(f); + f->nakloops = 0; + f->rnakloops = 0; + } + + if( !retransmit ){ + /* New request - reset retransmission counter, use new ID */ + f->retransmits = pcb->settings.fsm_max_conf_req_transmits; + f->reqid = ++f->id; + } + + f->seen_ack = 0; + + /* + * Make up the request packet + */ + if( f->callbacks->cilen && f->callbacks->addci ){ + cilen = (*f->callbacks->cilen)(f); + if( cilen > pcb->peer_mru - HEADERLEN ) + cilen = pcb->peer_mru - HEADERLEN; + } else + cilen = 0; + + p = pbuf_alloc(PBUF_RAW, (u16_t)(cilen + HEADERLEN + PPP_HDRLEN), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + /* send the request to our peer */ + outp = (u_char*)p->payload; + MAKEHEADER(outp, f->protocol); + PUTCHAR(CONFREQ, outp); + PUTCHAR(f->reqid, outp); + PUTSHORT(cilen + HEADERLEN, outp); + if (cilen != 0) { + (*f->callbacks->addci)(f, outp, &cilen); + LWIP_ASSERT("cilen == p->len - HEADERLEN - PPP_HDRLEN", cilen == p->len - HEADERLEN - PPP_HDRLEN); + } + + ppp_write(pcb, p); + + /* start the retransmit timer */ + --f->retransmits; + TIMEOUT(fsm_timeout, f, pcb->settings.fsm_timeout_time); +} + + +/* + * fsm_sdata - Send some data. + * + * Used for all packets sent to our peer by this module. + */ +void fsm_sdata(fsm *f, u_char code, u_char id, const u_char *data, int datalen) { + ppp_pcb *pcb = f->pcb; + struct pbuf *p; + u_char *outp; + int outlen; + + /* Adjust length to be smaller than MTU */ + if (datalen > pcb->peer_mru - HEADERLEN) + datalen = pcb->peer_mru - HEADERLEN; + outlen = datalen + HEADERLEN; + + p = pbuf_alloc(PBUF_RAW, (u16_t)(outlen + PPP_HDRLEN), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = (u_char*)p->payload; + if (datalen) /* && data != outp + PPP_HDRLEN + HEADERLEN) -- was only for fsm_sconfreq() */ + MEMCPY(outp + PPP_HDRLEN + HEADERLEN, data, datalen); + MAKEHEADER(outp, f->protocol); + PUTCHAR(code, outp); + PUTCHAR(id, outp); + PUTSHORT(outlen, outp); + ppp_write(pcb, p); +} + +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/ipcp.c b/middleware/lwip/src/netif/ppp/ipcp.c new file mode 100644 index 0000000..b033cde --- /dev/null +++ b/middleware/lwip/src/netif/ppp/ipcp.c @@ -0,0 +1,2418 @@ +/* + * ipcp.c - PPP IP Control Protocol. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPP_IPV4_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +/* + * @todo: + */ + +#if 0 /* UNUSED */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#endif /* UNUSED */ + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/fsm.h" +#include "netif/ppp/ipcp.h" + +#if 0 /* UNUSED */ +/* global vars */ +u32_t netmask = 0; /* IP netmask to set on interface */ +#endif /* UNUSED */ + +#if 0 /* UNUSED */ +bool disable_defaultip = 0; /* Don't use hostname for default IP adrs */ +#endif /* UNUSED */ + +#if 0 /* moved to ppp_settings */ +bool noremoteip = 0; /* Let him have no IP address */ +#endif /* moved to ppp_setting */ + +#if 0 /* UNUSED */ +/* Hook for a plugin to know when IP protocol has come up */ +void (*ip_up_hook) (void) = NULL; + +/* Hook for a plugin to know when IP protocol has come down */ +void (*ip_down_hook) (void) = NULL; + +/* Hook for a plugin to choose the remote IP address */ +void (*ip_choose_hook) (u32_t *) = NULL; +#endif /* UNUSED */ + +#if PPP_NOTIFY +/* Notifiers for when IPCP goes up and down */ +struct notifier *ip_up_notifier = NULL; +struct notifier *ip_down_notifier = NULL; +#endif /* PPP_NOTIFY */ + +/* local vars */ +#if 0 /* moved to ppp_pcb */ +static int default_route_set[NUM_PPP]; /* Have set up a default route */ +static int proxy_arp_set[NUM_PPP]; /* Have created proxy arp entry */ +static int ipcp_is_up; /* have called np_up() */ +static int ipcp_is_open; /* haven't called np_finished() */ +static bool ask_for_local; /* request our address from peer */ +#endif /* moved to ppp_pcb */ +#if 0 /* UNUSED */ +static char vj_value[8]; /* string form of vj option value */ +static char netmask_str[20]; /* string form of netmask value */ +#endif /* UNUSED */ + +/* + * Callbacks for fsm code. (CI = Configuration Information) + */ +static void ipcp_resetci(fsm *f); /* Reset our CI */ +static int ipcp_cilen(fsm *f); /* Return length of our CI */ +static void ipcp_addci(fsm *f, u_char *ucp, int *lenp); /* Add our CI */ +static int ipcp_ackci(fsm *f, u_char *p, int len); /* Peer ack'd our CI */ +static int ipcp_nakci(fsm *f, u_char *p, int len, int treat_as_reject);/* Peer nak'd our CI */ +static int ipcp_rejci(fsm *f, u_char *p, int len); /* Peer rej'd our CI */ +static int ipcp_reqci(fsm *f, u_char *inp, int *len, int reject_if_disagree); /* Rcv CI */ +static void ipcp_up(fsm *f); /* We're UP */ +static void ipcp_down(fsm *f); /* We're DOWN */ +static void ipcp_finished(fsm *f); /* Don't need lower layer */ + +static const fsm_callbacks ipcp_callbacks = { /* IPCP callback routines */ + ipcp_resetci, /* Reset our Configuration Information */ + ipcp_cilen, /* Length of our Configuration Information */ + ipcp_addci, /* Add our Configuration Information */ + ipcp_ackci, /* ACK our Configuration Information */ + ipcp_nakci, /* NAK our Configuration Information */ + ipcp_rejci, /* Reject our Configuration Information */ + ipcp_reqci, /* Request peer's Configuration Information */ + ipcp_up, /* Called when fsm reaches OPENED state */ + ipcp_down, /* Called when fsm leaves OPENED state */ + NULL, /* Called when we want the lower layer up */ + ipcp_finished, /* Called when we want the lower layer down */ + NULL, /* Called when Protocol-Reject received */ + NULL, /* Retransmission is necessary */ + NULL, /* Called to handle protocol-specific codes */ + "IPCP" /* String name of protocol */ +}; + +/* + * Command-line options. + */ +#if PPP_OPTIONS +static int setvjslots (char **); +static int setdnsaddr (char **); +static int setwinsaddr (char **); +static int setnetmask (char **); +int setipaddr (char *, char **, int); + +static void printipaddr (option_t *, void (*)(void *, char *,...),void *); + +static option_t ipcp_option_list[] = { + { "noip", o_bool, &ipcp_protent.enabled_flag, + "Disable IP and IPCP" }, + { "-ip", o_bool, &ipcp_protent.enabled_flag, + "Disable IP and IPCP", OPT_ALIAS }, + + { "novj", o_bool, &ipcp_wantoptions[0].neg_vj, + "Disable VJ compression", OPT_A2CLR, &ipcp_allowoptions[0].neg_vj }, + { "-vj", o_bool, &ipcp_wantoptions[0].neg_vj, + "Disable VJ compression", OPT_ALIAS | OPT_A2CLR, + &ipcp_allowoptions[0].neg_vj }, + + { "novjccomp", o_bool, &ipcp_wantoptions[0].cflag, + "Disable VJ connection-ID compression", OPT_A2CLR, + &ipcp_allowoptions[0].cflag }, + { "-vjccomp", o_bool, &ipcp_wantoptions[0].cflag, + "Disable VJ connection-ID compression", OPT_ALIAS | OPT_A2CLR, + &ipcp_allowoptions[0].cflag }, + + { "vj-max-slots", o_special, (void *)setvjslots, + "Set maximum VJ header slots", + OPT_PRIO | OPT_A2STRVAL | OPT_STATIC, vj_value }, + + { "ipcp-accept-local", o_bool, &ipcp_wantoptions[0].accept_local, + "Accept peer's address for us", 1 }, + { "ipcp-accept-remote", o_bool, &ipcp_wantoptions[0].accept_remote, + "Accept peer's address for it", 1 }, + + { "ipparam", o_string, &ipparam, + "Set ip script parameter", OPT_PRIO }, + + { "noipdefault", o_bool, &disable_defaultip, + "Don't use name for default IP adrs", 1 }, + + { "ms-dns", 1, (void *)setdnsaddr, + "DNS address for the peer's use" }, + { "ms-wins", 1, (void *)setwinsaddr, + "Nameserver for SMB over TCP/IP for peer" }, + + { "ipcp-restart", o_int, &ipcp_fsm[0].timeouttime, + "Set timeout for IPCP", OPT_PRIO }, + { "ipcp-max-terminate", o_int, &ipcp_fsm[0].maxtermtransmits, + "Set max #xmits for term-reqs", OPT_PRIO }, + { "ipcp-max-configure", o_int, &ipcp_fsm[0].maxconfreqtransmits, + "Set max #xmits for conf-reqs", OPT_PRIO }, + { "ipcp-max-failure", o_int, &ipcp_fsm[0].maxnakloops, + "Set max #conf-naks for IPCP", OPT_PRIO }, + + { "defaultroute", o_bool, &ipcp_wantoptions[0].default_route, + "Add default route", OPT_ENABLE|1, &ipcp_allowoptions[0].default_route }, + { "nodefaultroute", o_bool, &ipcp_allowoptions[0].default_route, + "disable defaultroute option", OPT_A2CLR, + &ipcp_wantoptions[0].default_route }, + { "-defaultroute", o_bool, &ipcp_allowoptions[0].default_route, + "disable defaultroute option", OPT_ALIAS | OPT_A2CLR, + &ipcp_wantoptions[0].default_route }, + + { "replacedefaultroute", o_bool, + &ipcp_wantoptions[0].replace_default_route, + "Replace default route", 1 + }, + { "noreplacedefaultroute", o_bool, + &ipcp_allowoptions[0].replace_default_route, + "Never replace default route", OPT_A2COPY, + &ipcp_wantoptions[0].replace_default_route }, + { "proxyarp", o_bool, &ipcp_wantoptions[0].proxy_arp, + "Add proxy ARP entry", OPT_ENABLE|1, &ipcp_allowoptions[0].proxy_arp }, + { "noproxyarp", o_bool, &ipcp_allowoptions[0].proxy_arp, + "disable proxyarp option", OPT_A2CLR, + &ipcp_wantoptions[0].proxy_arp }, + { "-proxyarp", o_bool, &ipcp_allowoptions[0].proxy_arp, + "disable proxyarp option", OPT_ALIAS | OPT_A2CLR, + &ipcp_wantoptions[0].proxy_arp }, + + { "usepeerdns", o_bool, &usepeerdns, + "Ask peer for DNS address(es)", 1 }, + + { "netmask", o_special, (void *)setnetmask, + "set netmask", OPT_PRIO | OPT_A2STRVAL | OPT_STATIC, netmask_str }, + + { "ipcp-no-addresses", o_bool, &ipcp_wantoptions[0].old_addrs, + "Disable old-style IP-Addresses usage", OPT_A2CLR, + &ipcp_allowoptions[0].old_addrs }, + { "ipcp-no-address", o_bool, &ipcp_wantoptions[0].neg_addr, + "Disable IP-Address usage", OPT_A2CLR, + &ipcp_allowoptions[0].neg_addr }, + + { "noremoteip", o_bool, &noremoteip, + "Allow peer to have no IP address", 1 }, + + { "nosendip", o_bool, &ipcp_wantoptions[0].neg_addr, + "Don't send our IP address to peer", OPT_A2CLR, + &ipcp_wantoptions[0].old_addrs}, + + { "IP addresses", o_wild, (void *) &setipaddr, + "set local and remote IP addresses", + OPT_NOARG | OPT_A2PRINTER, (void *) &printipaddr }, + + { NULL } +}; +#endif /* PPP_OPTIONS */ + +/* + * Protocol entry points from main code. + */ +static void ipcp_init(ppp_pcb *pcb); +static void ipcp_open(ppp_pcb *pcb); +static void ipcp_close(ppp_pcb *pcb, const char *reason); +static void ipcp_lowerup(ppp_pcb *pcb); +static void ipcp_lowerdown(ppp_pcb *pcb); +static void ipcp_input(ppp_pcb *pcb, u_char *p, int len); +static void ipcp_protrej(ppp_pcb *pcb); +#if PRINTPKT_SUPPORT +static int ipcp_printpkt(const u_char *p, int plen, + void (*printer) (void *, const char *, ...), void *arg); +#endif /* PRINTPKT_SUPPORT */ +#if PPP_OPTIONS +static void ip_check_options (void); +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT +static int ip_demand_conf (int); +static int ip_active_pkt (u_char *, int); +#endif /* DEMAND_SUPPORT */ +#if 0 /* UNUSED */ +static void create_resolv (u32_t, u32_t); +#endif /* UNUSED */ + +const struct protent ipcp_protent = { + PPP_IPCP, + ipcp_init, + ipcp_input, + ipcp_protrej, + ipcp_lowerup, + ipcp_lowerdown, + ipcp_open, + ipcp_close, +#if PRINTPKT_SUPPORT + ipcp_printpkt, +#endif /* PRINTPKT_SUPPORT */ +#if PPP_DATAINPUT + NULL, +#endif /* PPP_DATAINPUT */ +#if PRINTPKT_SUPPORT + "IPCP", + "IP", +#endif /* PRINTPKT_SUPPORT */ +#if PPP_OPTIONS + ipcp_option_list, + ip_check_options, +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT + ip_demand_conf, + ip_active_pkt +#endif /* DEMAND_SUPPORT */ +}; + +static void ipcp_clear_addrs(ppp_pcb *pcb, u32_t ouraddr, u32_t hisaddr, u8_t replacedefaultroute); + +/* + * Lengths of configuration options. + */ +#define CILEN_VOID 2 +#define CILEN_COMPRESS 4 /* min length for compression protocol opt. */ +#define CILEN_VJ 6 /* length for RFC1332 Van-Jacobson opt. */ +#define CILEN_ADDR 6 /* new-style single address option */ +#define CILEN_ADDRS 10 /* old-style dual address option */ + + +#define CODENAME(x) ((x) == CONFACK ? "ACK" : \ + (x) == CONFNAK ? "NAK" : "REJ") + +#if 0 /* UNUSED, already defined by lwIP */ +/* + * Make a string representation of a network IP address. + */ +char * +ip_ntoa(ipaddr) +u32_t ipaddr; +{ + static char b[64]; + + slprintf(b, sizeof(b), "%I", ipaddr); + return b; +} +#endif /* UNUSED, already defined by lwIP */ + +/* + * Option parsing. + */ +#if PPP_OPTIONS +/* + * setvjslots - set maximum number of connection slots for VJ compression + */ +static int +setvjslots(argv) + char **argv; +{ + int value; + + if (!int_option(*argv, &value)) + return 0; + + if (value < 2 || value > 16) { + option_error("vj-max-slots value must be between 2 and 16"); + return 0; + } + ipcp_wantoptions [0].maxslotindex = + ipcp_allowoptions[0].maxslotindex = value - 1; + slprintf(vj_value, sizeof(vj_value), "%d", value); + return 1; +} + +/* + * setdnsaddr - set the dns address(es) + */ +static int +setdnsaddr(argv) + char **argv; +{ + u32_t dns; + struct hostent *hp; + + dns = inet_addr(*argv); + if (dns == (u32_t) -1) { + if ((hp = gethostbyname(*argv)) == NULL) { + option_error("invalid address parameter '%s' for ms-dns option", + *argv); + return 0; + } + dns = *(u32_t *)hp->h_addr; + } + + /* We take the last 2 values given, the 2nd-last as the primary + and the last as the secondary. If only one is given it + becomes both primary and secondary. */ + if (ipcp_allowoptions[0].dnsaddr[1] == 0) + ipcp_allowoptions[0].dnsaddr[0] = dns; + else + ipcp_allowoptions[0].dnsaddr[0] = ipcp_allowoptions[0].dnsaddr[1]; + + /* always set the secondary address value. */ + ipcp_allowoptions[0].dnsaddr[1] = dns; + + return (1); +} + +/* + * setwinsaddr - set the wins address(es) + * This is primrarly used with the Samba package under UNIX or for pointing + * the caller to the existing WINS server on a Windows NT platform. + */ +static int +setwinsaddr(argv) + char **argv; +{ + u32_t wins; + struct hostent *hp; + + wins = inet_addr(*argv); + if (wins == (u32_t) -1) { + if ((hp = gethostbyname(*argv)) == NULL) { + option_error("invalid address parameter '%s' for ms-wins option", + *argv); + return 0; + } + wins = *(u32_t *)hp->h_addr; + } + + /* We take the last 2 values given, the 2nd-last as the primary + and the last as the secondary. If only one is given it + becomes both primary and secondary. */ + if (ipcp_allowoptions[0].winsaddr[1] == 0) + ipcp_allowoptions[0].winsaddr[0] = wins; + else + ipcp_allowoptions[0].winsaddr[0] = ipcp_allowoptions[0].winsaddr[1]; + + /* always set the secondary address value. */ + ipcp_allowoptions[0].winsaddr[1] = wins; + + return (1); +} + +/* + * setipaddr - Set the IP address + * If doit is 0, the call is to check whether this option is + * potentially an IP address specification. + * Not static so that plugins can call it to set the addresses + */ +int +setipaddr(arg, argv, doit) + char *arg; + char **argv; + int doit; +{ + struct hostent *hp; + char *colon; + u32_t local, remote; + ipcp_options *wo = &ipcp_wantoptions[0]; + static int prio_local = 0, prio_remote = 0; + + /* + * IP address pair separated by ":". + */ + if ((colon = strchr(arg, ':')) == NULL) + return 0; + if (!doit) + return 1; + + /* + * If colon first character, then no local addr. + */ + if (colon != arg && option_priority >= prio_local) { + *colon = '\0'; + if ((local = inet_addr(arg)) == (u32_t) -1) { + if ((hp = gethostbyname(arg)) == NULL) { + option_error("unknown host: %s", arg); + return 0; + } + local = *(u32_t *)hp->h_addr; + } + if (bad_ip_adrs(local)) { + option_error("bad local IP address %s", ip_ntoa(local)); + return 0; + } + if (local != 0) + wo->ouraddr = local; + *colon = ':'; + prio_local = option_priority; + } + + /* + * If colon last character, then no remote addr. + */ + if (*++colon != '\0' && option_priority >= prio_remote) { + if ((remote = inet_addr(colon)) == (u32_t) -1) { + if ((hp = gethostbyname(colon)) == NULL) { + option_error("unknown host: %s", colon); + return 0; + } + remote = *(u32_t *)hp->h_addr; + if (remote_name[0] == 0) + strlcpy(remote_name, colon, sizeof(remote_name)); + } + if (bad_ip_adrs(remote)) { + option_error("bad remote IP address %s", ip_ntoa(remote)); + return 0; + } + if (remote != 0) + wo->hisaddr = remote; + prio_remote = option_priority; + } + + return 1; +} + +static void +printipaddr(opt, printer, arg) + option_t *opt; + void (*printer) (void *, char *, ...); + void *arg; +{ + ipcp_options *wo = &ipcp_wantoptions[0]; + + if (wo->ouraddr != 0) + printer(arg, "%I", wo->ouraddr); + printer(arg, ":"); + if (wo->hisaddr != 0) + printer(arg, "%I", wo->hisaddr); +} + +/* + * setnetmask - set the netmask to be used on the interface. + */ +static int +setnetmask(argv) + char **argv; +{ + u32_t mask; + int n; + char *p; + + /* + * Unfortunately, if we use inet_addr, we can't tell whether + * a result of all 1s is an error or a valid 255.255.255.255. + */ + p = *argv; + n = parse_dotted_ip(p, &mask); + + mask = lwip_htonl(mask); + + if (n == 0 || p[n] != 0 || (netmask & ~mask) != 0) { + option_error("invalid netmask value '%s'", *argv); + return 0; + } + + netmask = mask; + slprintf(netmask_str, sizeof(netmask_str), "%I", mask); + + return (1); +} + +int +parse_dotted_ip(p, vp) + char *p; + u32_t *vp; +{ + int n; + u32_t v, b; + char *endp, *p0 = p; + + v = 0; + for (n = 3;; --n) { + b = strtoul(p, &endp, 0); + if (endp == p) + return 0; + if (b > 255) { + if (n < 3) + return 0; + /* accept e.g. 0xffffff00 */ + *vp = b; + return endp - p0; + } + v |= b << (n * 8); + p = endp; + if (n == 0) + break; + if (*p != '.') + return 0; + ++p; + } + *vp = v; + return p - p0; +} +#endif /* PPP_OPTIONS */ + +/* + * ipcp_init - Initialize IPCP. + */ +static void ipcp_init(ppp_pcb *pcb) { + fsm *f = &pcb->ipcp_fsm; + + ipcp_options *wo = &pcb->ipcp_wantoptions; + ipcp_options *ao = &pcb->ipcp_allowoptions; + + f->pcb = pcb; + f->protocol = PPP_IPCP; + f->callbacks = &ipcp_callbacks; + fsm_init(f); + + /* + * Some 3G modems use repeated IPCP NAKs as a way of stalling + * until they can contact a server on the network, so we increase + * the default number of NAKs we accept before we start treating + * them as rejects. + */ + f->maxnakloops = 100; + +#if 0 /* Not necessary, everything is cleared in ppp_new() */ + memset(wo, 0, sizeof(*wo)); + memset(ao, 0, sizeof(*ao)); +#endif /* 0 */ + + wo->neg_addr = wo->old_addrs = 1; +#if VJ_SUPPORT + wo->neg_vj = 1; + wo->vj_protocol = IPCP_VJ_COMP; + wo->maxslotindex = MAX_STATES - 1; /* really max index */ + wo->cflag = 1; +#endif /* VJ_SUPPORT */ + +#if 0 /* UNUSED */ + /* wanting default route by default */ + wo->default_route = 1; +#endif /* UNUSED */ + + ao->neg_addr = ao->old_addrs = 1; +#if VJ_SUPPORT + /* max slots and slot-id compression are currently hardwired in */ + /* ppp_if.c to 16 and 1, this needs to be changed (among other */ + /* things) gmc */ + + ao->neg_vj = 1; + ao->maxslotindex = MAX_STATES - 1; + ao->cflag = 1; +#endif /* #if VJ_SUPPORT */ + +#if 0 /* UNUSED */ + /* + * XXX These control whether the user may use the proxyarp + * and defaultroute options. + */ + ao->proxy_arp = 1; + ao->default_route = 1; +#endif /* UNUSED */ +} + + +/* + * ipcp_open - IPCP is allowed to come up. + */ +static void ipcp_open(ppp_pcb *pcb) { + fsm *f = &pcb->ipcp_fsm; + fsm_open(f); + pcb->ipcp_is_open = 1; +} + + +/* + * ipcp_close - Take IPCP down. + */ +static void ipcp_close(ppp_pcb *pcb, const char *reason) { + fsm *f = &pcb->ipcp_fsm; + fsm_close(f, reason); +} + + +/* + * ipcp_lowerup - The lower layer is up. + */ +static void ipcp_lowerup(ppp_pcb *pcb) { + fsm *f = &pcb->ipcp_fsm; + fsm_lowerup(f); +} + + +/* + * ipcp_lowerdown - The lower layer is down. + */ +static void ipcp_lowerdown(ppp_pcb *pcb) { + fsm *f = &pcb->ipcp_fsm; + fsm_lowerdown(f); +} + + +/* + * ipcp_input - Input IPCP packet. + */ +static void ipcp_input(ppp_pcb *pcb, u_char *p, int len) { + fsm *f = &pcb->ipcp_fsm; + fsm_input(f, p, len); +} + + +/* + * ipcp_protrej - A Protocol-Reject was received for IPCP. + * + * Pretend the lower layer went down, so we shut up. + */ +static void ipcp_protrej(ppp_pcb *pcb) { + fsm *f = &pcb->ipcp_fsm; + fsm_lowerdown(f); +} + + +/* + * ipcp_resetci - Reset our CI. + * Called by fsm_sconfreq, Send Configure Request. + */ +static void ipcp_resetci(fsm *f) { + ppp_pcb *pcb = f->pcb; + ipcp_options *wo = &pcb->ipcp_wantoptions; + ipcp_options *go = &pcb->ipcp_gotoptions; + ipcp_options *ao = &pcb->ipcp_allowoptions; + + wo->req_addr = (wo->neg_addr || wo->old_addrs) && + (ao->neg_addr || ao->old_addrs); + if (wo->ouraddr == 0) + wo->accept_local = 1; + if (wo->hisaddr == 0) + wo->accept_remote = 1; +#if LWIP_DNS + wo->req_dns1 = wo->req_dns2 = pcb->settings.usepeerdns; /* Request DNS addresses from the peer */ +#endif /* LWIP_DNS */ + *go = *wo; + if (!pcb->ask_for_local) + go->ouraddr = 0; +#if 0 /* UNUSED */ + if (ip_choose_hook) { + ip_choose_hook(&wo->hisaddr); + if (wo->hisaddr) { + wo->accept_remote = 0; + } + } +#endif /* UNUSED */ + BZERO(&pcb->ipcp_hisoptions, sizeof(ipcp_options)); +} + + +/* + * ipcp_cilen - Return length of our CI. + * Called by fsm_sconfreq, Send Configure Request. + */ +static int ipcp_cilen(fsm *f) { + ppp_pcb *pcb = f->pcb; + ipcp_options *go = &pcb->ipcp_gotoptions; +#if VJ_SUPPORT + ipcp_options *wo = &pcb->ipcp_wantoptions; +#endif /* VJ_SUPPORT */ + ipcp_options *ho = &pcb->ipcp_hisoptions; + +#define LENCIADDRS(neg) (neg ? CILEN_ADDRS : 0) +#if VJ_SUPPORT +#define LENCIVJ(neg, old) (neg ? (old? CILEN_COMPRESS : CILEN_VJ) : 0) +#endif /* VJ_SUPPORT */ +#define LENCIADDR(neg) (neg ? CILEN_ADDR : 0) +#if LWIP_DNS +#define LENCIDNS(neg) LENCIADDR(neg) +#endif /* LWIP_DNS */ +#if 0 /* UNUSED - WINS */ +#define LENCIWINS(neg) LENCIADDR(neg) +#endif /* UNUSED - WINS */ + + /* + * First see if we want to change our options to the old + * forms because we have received old forms from the peer. + */ + if (go->neg_addr && go->old_addrs && !ho->neg_addr && ho->old_addrs) + go->neg_addr = 0; + +#if VJ_SUPPORT + if (wo->neg_vj && !go->neg_vj && !go->old_vj) { + /* try an older style of VJ negotiation */ + /* use the old style only if the peer did */ + if (ho->neg_vj && ho->old_vj) { + go->neg_vj = 1; + go->old_vj = 1; + go->vj_protocol = ho->vj_protocol; + } + } +#endif /* VJ_SUPPORT */ + + return (LENCIADDRS(!go->neg_addr && go->old_addrs) + +#if VJ_SUPPORT + LENCIVJ(go->neg_vj, go->old_vj) + +#endif /* VJ_SUPPORT */ + LENCIADDR(go->neg_addr) + +#if LWIP_DNS + LENCIDNS(go->req_dns1) + + LENCIDNS(go->req_dns2) + +#endif /* LWIP_DNS */ +#if 0 /* UNUSED - WINS */ + LENCIWINS(go->winsaddr[0]) + + LENCIWINS(go->winsaddr[1]) + +#endif /* UNUSED - WINS */ + 0); +} + + +/* + * ipcp_addci - Add our desired CIs to a packet. + * Called by fsm_sconfreq, Send Configure Request. + */ +static void ipcp_addci(fsm *f, u_char *ucp, int *lenp) { + ppp_pcb *pcb = f->pcb; + ipcp_options *go = &pcb->ipcp_gotoptions; + int len = *lenp; + +#define ADDCIADDRS(opt, neg, val1, val2) \ + if (neg) { \ + if (len >= CILEN_ADDRS) { \ + u32_t l; \ + PUTCHAR(opt, ucp); \ + PUTCHAR(CILEN_ADDRS, ucp); \ + l = lwip_ntohl(val1); \ + PUTLONG(l, ucp); \ + l = lwip_ntohl(val2); \ + PUTLONG(l, ucp); \ + len -= CILEN_ADDRS; \ + } else \ + go->old_addrs = 0; \ + } + +#if VJ_SUPPORT +#define ADDCIVJ(opt, neg, val, old, maxslotindex, cflag) \ + if (neg) { \ + int vjlen = old? CILEN_COMPRESS : CILEN_VJ; \ + if (len >= vjlen) { \ + PUTCHAR(opt, ucp); \ + PUTCHAR(vjlen, ucp); \ + PUTSHORT(val, ucp); \ + if (!old) { \ + PUTCHAR(maxslotindex, ucp); \ + PUTCHAR(cflag, ucp); \ + } \ + len -= vjlen; \ + } else \ + neg = 0; \ + } +#endif /* VJ_SUPPORT */ + +#define ADDCIADDR(opt, neg, val) \ + if (neg) { \ + if (len >= CILEN_ADDR) { \ + u32_t l; \ + PUTCHAR(opt, ucp); \ + PUTCHAR(CILEN_ADDR, ucp); \ + l = lwip_ntohl(val); \ + PUTLONG(l, ucp); \ + len -= CILEN_ADDR; \ + } else \ + neg = 0; \ + } + +#if LWIP_DNS +#define ADDCIDNS(opt, neg, addr) \ + if (neg) { \ + if (len >= CILEN_ADDR) { \ + u32_t l; \ + PUTCHAR(opt, ucp); \ + PUTCHAR(CILEN_ADDR, ucp); \ + l = lwip_ntohl(addr); \ + PUTLONG(l, ucp); \ + len -= CILEN_ADDR; \ + } else \ + neg = 0; \ + } +#endif /* LWIP_DNS */ + +#if 0 /* UNUSED - WINS */ +#define ADDCIWINS(opt, addr) \ + if (addr) { \ + if (len >= CILEN_ADDR) { \ + u32_t l; \ + PUTCHAR(opt, ucp); \ + PUTCHAR(CILEN_ADDR, ucp); \ + l = lwip_ntohl(addr); \ + PUTLONG(l, ucp); \ + len -= CILEN_ADDR; \ + } else \ + addr = 0; \ + } +#endif /* UNUSED - WINS */ + + ADDCIADDRS(CI_ADDRS, !go->neg_addr && go->old_addrs, go->ouraddr, + go->hisaddr); + +#if VJ_SUPPORT + ADDCIVJ(CI_COMPRESSTYPE, go->neg_vj, go->vj_protocol, go->old_vj, + go->maxslotindex, go->cflag); +#endif /* VJ_SUPPORT */ + + ADDCIADDR(CI_ADDR, go->neg_addr, go->ouraddr); + +#if LWIP_DNS + ADDCIDNS(CI_MS_DNS1, go->req_dns1, go->dnsaddr[0]); + + ADDCIDNS(CI_MS_DNS2, go->req_dns2, go->dnsaddr[1]); +#endif /* LWIP_DNS */ + +#if 0 /* UNUSED - WINS */ + ADDCIWINS(CI_MS_WINS1, go->winsaddr[0]); + + ADDCIWINS(CI_MS_WINS2, go->winsaddr[1]); +#endif /* UNUSED - WINS */ + + *lenp -= len; +} + + +/* + * ipcp_ackci - Ack our CIs. + * Called by fsm_rconfack, Receive Configure ACK. + * + * Returns: + * 0 - Ack was bad. + * 1 - Ack was good. + */ +static int ipcp_ackci(fsm *f, u_char *p, int len) { + ppp_pcb *pcb = f->pcb; + ipcp_options *go = &pcb->ipcp_gotoptions; + u_short cilen, citype; + u32_t cilong; +#if VJ_SUPPORT + u_short cishort; + u_char cimaxslotindex, cicflag; +#endif /* VJ_SUPPORT */ + + /* + * CIs must be in exactly the same order that we sent... + * Check packet length and CI length at each step. + * If we find any deviations, then this packet is bad. + */ + +#define ACKCIADDRS(opt, neg, val1, val2) \ + if (neg) { \ + u32_t l; \ + if ((len -= CILEN_ADDRS) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_ADDRS || \ + citype != opt) \ + goto bad; \ + GETLONG(l, p); \ + cilong = lwip_htonl(l); \ + if (val1 != cilong) \ + goto bad; \ + GETLONG(l, p); \ + cilong = lwip_htonl(l); \ + if (val2 != cilong) \ + goto bad; \ + } + +#if VJ_SUPPORT +#define ACKCIVJ(opt, neg, val, old, maxslotindex, cflag) \ + if (neg) { \ + int vjlen = old? CILEN_COMPRESS : CILEN_VJ; \ + if ((len -= vjlen) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != vjlen || \ + citype != opt) \ + goto bad; \ + GETSHORT(cishort, p); \ + if (cishort != val) \ + goto bad; \ + if (!old) { \ + GETCHAR(cimaxslotindex, p); \ + if (cimaxslotindex != maxslotindex) \ + goto bad; \ + GETCHAR(cicflag, p); \ + if (cicflag != cflag) \ + goto bad; \ + } \ + } +#endif /* VJ_SUPPORT */ + +#define ACKCIADDR(opt, neg, val) \ + if (neg) { \ + u32_t l; \ + if ((len -= CILEN_ADDR) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_ADDR || \ + citype != opt) \ + goto bad; \ + GETLONG(l, p); \ + cilong = lwip_htonl(l); \ + if (val != cilong) \ + goto bad; \ + } + +#if LWIP_DNS +#define ACKCIDNS(opt, neg, addr) \ + if (neg) { \ + u32_t l; \ + if ((len -= CILEN_ADDR) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_ADDR || citype != opt) \ + goto bad; \ + GETLONG(l, p); \ + cilong = lwip_htonl(l); \ + if (addr != cilong) \ + goto bad; \ + } +#endif /* LWIP_DNS */ + +#if 0 /* UNUSED - WINS */ +#define ACKCIWINS(opt, addr) \ + if (addr) { \ + u32_t l; \ + if ((len -= CILEN_ADDR) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_ADDR || citype != opt) \ + goto bad; \ + GETLONG(l, p); \ + cilong = lwip_htonl(l); \ + if (addr != cilong) \ + goto bad; \ + } +#endif /* UNUSED - WINS */ + + ACKCIADDRS(CI_ADDRS, !go->neg_addr && go->old_addrs, go->ouraddr, + go->hisaddr); + +#if VJ_SUPPORT + ACKCIVJ(CI_COMPRESSTYPE, go->neg_vj, go->vj_protocol, go->old_vj, + go->maxslotindex, go->cflag); +#endif /* VJ_SUPPORT */ + + ACKCIADDR(CI_ADDR, go->neg_addr, go->ouraddr); + +#if LWIP_DNS + ACKCIDNS(CI_MS_DNS1, go->req_dns1, go->dnsaddr[0]); + + ACKCIDNS(CI_MS_DNS2, go->req_dns2, go->dnsaddr[1]); +#endif /* LWIP_DNS */ + +#if 0 /* UNUSED - WINS */ + ACKCIWINS(CI_MS_WINS1, go->winsaddr[0]); + + ACKCIWINS(CI_MS_WINS2, go->winsaddr[1]); +#endif /* UNUSED - WINS */ + + /* + * If there are any remaining CIs, then this packet is bad. + */ + if (len != 0) + goto bad; + return (1); + +bad: + IPCPDEBUG(("ipcp_ackci: received bad Ack!")); + return (0); +} + +/* + * ipcp_nakci - Peer has sent a NAK for some of our CIs. + * This should not modify any state if the Nak is bad + * or if IPCP is in the OPENED state. + * Callback from fsm_rconfnakrej - Receive Configure-Nak or Configure-Reject. + * + * Returns: + * 0 - Nak was bad. + * 1 - Nak was good. + */ +static int ipcp_nakci(fsm *f, u_char *p, int len, int treat_as_reject) { + ppp_pcb *pcb = f->pcb; + ipcp_options *go = &pcb->ipcp_gotoptions; + u_char citype, cilen, *next; +#if VJ_SUPPORT + u_char cimaxslotindex, cicflag; + u_short cishort; +#endif /* VJ_SUPPORT */ + u32_t ciaddr1, ciaddr2, l; +#if LWIP_DNS + u32_t cidnsaddr; +#endif /* LWIP_DNS */ + ipcp_options no; /* options we've seen Naks for */ + ipcp_options try_; /* options to request next time */ + + BZERO(&no, sizeof(no)); + try_ = *go; + + /* + * Any Nak'd CIs must be in exactly the same order that we sent. + * Check packet length and CI length at each step. + * If we find any deviations, then this packet is bad. + */ +#define NAKCIADDRS(opt, neg, code) \ + if ((neg) && \ + (cilen = p[1]) == CILEN_ADDRS && \ + len >= cilen && \ + p[0] == opt) { \ + len -= cilen; \ + INCPTR(2, p); \ + GETLONG(l, p); \ + ciaddr1 = lwip_htonl(l); \ + GETLONG(l, p); \ + ciaddr2 = lwip_htonl(l); \ + no.old_addrs = 1; \ + code \ + } + +#if VJ_SUPPORT +#define NAKCIVJ(opt, neg, code) \ + if (go->neg && \ + ((cilen = p[1]) == CILEN_COMPRESS || cilen == CILEN_VJ) && \ + len >= cilen && \ + p[0] == opt) { \ + len -= cilen; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + no.neg = 1; \ + code \ + } +#endif /* VJ_SUPPORT */ + +#define NAKCIADDR(opt, neg, code) \ + if (go->neg && \ + (cilen = p[1]) == CILEN_ADDR && \ + len >= cilen && \ + p[0] == opt) { \ + len -= cilen; \ + INCPTR(2, p); \ + GETLONG(l, p); \ + ciaddr1 = lwip_htonl(l); \ + no.neg = 1; \ + code \ + } + +#if LWIP_DNS +#define NAKCIDNS(opt, neg, code) \ + if (go->neg && \ + ((cilen = p[1]) == CILEN_ADDR) && \ + len >= cilen && \ + p[0] == opt) { \ + len -= cilen; \ + INCPTR(2, p); \ + GETLONG(l, p); \ + cidnsaddr = lwip_htonl(l); \ + no.neg = 1; \ + code \ + } +#endif /* LWIP_DNS */ + + /* + * Accept the peer's idea of {our,his} address, if different + * from our idea, only if the accept_{local,remote} flag is set. + */ + NAKCIADDRS(CI_ADDRS, !go->neg_addr && go->old_addrs, + if (treat_as_reject) { + try_.old_addrs = 0; + } else { + if (go->accept_local && ciaddr1) { + /* take his idea of our address */ + try_.ouraddr = ciaddr1; + } + if (go->accept_remote && ciaddr2) { + /* take his idea of his address */ + try_.hisaddr = ciaddr2; + } + } + ); + +#if VJ_SUPPORT + /* + * Accept the peer's value of maxslotindex provided that it + * is less than what we asked for. Turn off slot-ID compression + * if the peer wants. Send old-style compress-type option if + * the peer wants. + */ + NAKCIVJ(CI_COMPRESSTYPE, neg_vj, + if (treat_as_reject) { + try_.neg_vj = 0; + } else if (cilen == CILEN_VJ) { + GETCHAR(cimaxslotindex, p); + GETCHAR(cicflag, p); + if (cishort == IPCP_VJ_COMP) { + try_.old_vj = 0; + if (cimaxslotindex < go->maxslotindex) + try_.maxslotindex = cimaxslotindex; + if (!cicflag) + try_.cflag = 0; + } else { + try_.neg_vj = 0; + } + } else { + if (cishort == IPCP_VJ_COMP || cishort == IPCP_VJ_COMP_OLD) { + try_.old_vj = 1; + try_.vj_protocol = cishort; + } else { + try_.neg_vj = 0; + } + } + ); +#endif /* VJ_SUPPORT */ + + NAKCIADDR(CI_ADDR, neg_addr, + if (treat_as_reject) { + try_.neg_addr = 0; + try_.old_addrs = 0; + } else if (go->accept_local && ciaddr1) { + /* take his idea of our address */ + try_.ouraddr = ciaddr1; + } + ); + +#if LWIP_DNS + NAKCIDNS(CI_MS_DNS1, req_dns1, + if (treat_as_reject) { + try_.req_dns1 = 0; + } else { + try_.dnsaddr[0] = cidnsaddr; + } + ); + + NAKCIDNS(CI_MS_DNS2, req_dns2, + if (treat_as_reject) { + try_.req_dns2 = 0; + } else { + try_.dnsaddr[1] = cidnsaddr; + } + ); +#endif /* #if LWIP_DNS */ + + /* + * There may be remaining CIs, if the peer is requesting negotiation + * on an option that we didn't include in our request packet. + * If they want to negotiate about IP addresses, we comply. + * If they want us to ask for compression, we refuse. + * If they want us to ask for ms-dns, we do that, since some + * peers get huffy if we don't. + */ + while (len >= CILEN_VOID) { + GETCHAR(citype, p); + GETCHAR(cilen, p); + if ( cilen < CILEN_VOID || (len -= cilen) < 0 ) + goto bad; + next = p + cilen - 2; + + switch (citype) { +#if VJ_SUPPORT + case CI_COMPRESSTYPE: + if (go->neg_vj || no.neg_vj || + (cilen != CILEN_VJ && cilen != CILEN_COMPRESS)) + goto bad; + no.neg_vj = 1; + break; +#endif /* VJ_SUPPORT */ + case CI_ADDRS: + if ((!go->neg_addr && go->old_addrs) || no.old_addrs + || cilen != CILEN_ADDRS) + goto bad; + try_.neg_addr = 0; + GETLONG(l, p); + ciaddr1 = lwip_htonl(l); + if (ciaddr1 && go->accept_local) + try_.ouraddr = ciaddr1; + GETLONG(l, p); + ciaddr2 = lwip_htonl(l); + if (ciaddr2 && go->accept_remote) + try_.hisaddr = ciaddr2; + no.old_addrs = 1; + break; + case CI_ADDR: + if (go->neg_addr || no.neg_addr || cilen != CILEN_ADDR) + goto bad; + try_.old_addrs = 0; + GETLONG(l, p); + ciaddr1 = lwip_htonl(l); + if (ciaddr1 && go->accept_local) + try_.ouraddr = ciaddr1; + if (try_.ouraddr != 0) + try_.neg_addr = 1; + no.neg_addr = 1; + break; +#if LWIP_DNS + case CI_MS_DNS1: + if (go->req_dns1 || no.req_dns1 || cilen != CILEN_ADDR) + goto bad; + GETLONG(l, p); + try_.dnsaddr[0] = lwip_htonl(l); + try_.req_dns1 = 1; + no.req_dns1 = 1; + break; + case CI_MS_DNS2: + if (go->req_dns2 || no.req_dns2 || cilen != CILEN_ADDR) + goto bad; + GETLONG(l, p); + try_.dnsaddr[1] = lwip_htonl(l); + try_.req_dns2 = 1; + no.req_dns2 = 1; + break; +#endif /* LWIP_DNS */ +#if 0 /* UNUSED - WINS */ + case CI_MS_WINS1: + case CI_MS_WINS2: + if (cilen != CILEN_ADDR) + goto bad; + GETLONG(l, p); + ciaddr1 = lwip_htonl(l); + if (ciaddr1) + try_.winsaddr[citype == CI_MS_WINS2] = ciaddr1; + break; +#endif /* UNUSED - WINS */ + default: + break; + } + p = next; + } + + /* + * OK, the Nak is good. Now we can update state. + * If there are any remaining options, we ignore them. + */ + if (f->state != PPP_FSM_OPENED) + *go = try_; + + return 1; + +bad: + IPCPDEBUG(("ipcp_nakci: received bad Nak!")); + return 0; +} + + +/* + * ipcp_rejci - Reject some of our CIs. + * Callback from fsm_rconfnakrej. + */ +static int ipcp_rejci(fsm *f, u_char *p, int len) { + ppp_pcb *pcb = f->pcb; + ipcp_options *go = &pcb->ipcp_gotoptions; + u_char cilen; +#if VJ_SUPPORT + u_char cimaxslotindex, ciflag; + u_short cishort; +#endif /* VJ_SUPPORT */ + u32_t cilong; + ipcp_options try_; /* options to request next time */ + + try_ = *go; + /* + * Any Rejected CIs must be in exactly the same order that we sent. + * Check packet length and CI length at each step. + * If we find any deviations, then this packet is bad. + */ +#define REJCIADDRS(opt, neg, val1, val2) \ + if ((neg) && \ + (cilen = p[1]) == CILEN_ADDRS && \ + len >= cilen && \ + p[0] == opt) { \ + u32_t l; \ + len -= cilen; \ + INCPTR(2, p); \ + GETLONG(l, p); \ + cilong = lwip_htonl(l); \ + /* Check rejected value. */ \ + if (cilong != val1) \ + goto bad; \ + GETLONG(l, p); \ + cilong = lwip_htonl(l); \ + /* Check rejected value. */ \ + if (cilong != val2) \ + goto bad; \ + try_.old_addrs = 0; \ + } + +#if VJ_SUPPORT +#define REJCIVJ(opt, neg, val, old, maxslot, cflag) \ + if (go->neg && \ + p[1] == (old? CILEN_COMPRESS : CILEN_VJ) && \ + len >= p[1] && \ + p[0] == opt) { \ + len -= p[1]; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + /* Check rejected value. */ \ + if (cishort != val) \ + goto bad; \ + if (!old) { \ + GETCHAR(cimaxslotindex, p); \ + if (cimaxslotindex != maxslot) \ + goto bad; \ + GETCHAR(ciflag, p); \ + if (ciflag != cflag) \ + goto bad; \ + } \ + try_.neg = 0; \ + } +#endif /* VJ_SUPPORT */ + +#define REJCIADDR(opt, neg, val) \ + if (go->neg && \ + (cilen = p[1]) == CILEN_ADDR && \ + len >= cilen && \ + p[0] == opt) { \ + u32_t l; \ + len -= cilen; \ + INCPTR(2, p); \ + GETLONG(l, p); \ + cilong = lwip_htonl(l); \ + /* Check rejected value. */ \ + if (cilong != val) \ + goto bad; \ + try_.neg = 0; \ + } + +#if LWIP_DNS +#define REJCIDNS(opt, neg, dnsaddr) \ + if (go->neg && \ + ((cilen = p[1]) == CILEN_ADDR) && \ + len >= cilen && \ + p[0] == opt) { \ + u32_t l; \ + len -= cilen; \ + INCPTR(2, p); \ + GETLONG(l, p); \ + cilong = lwip_htonl(l); \ + /* Check rejected value. */ \ + if (cilong != dnsaddr) \ + goto bad; \ + try_.neg = 0; \ + } +#endif /* LWIP_DNS */ + +#if 0 /* UNUSED - WINS */ +#define REJCIWINS(opt, addr) \ + if (addr && \ + ((cilen = p[1]) == CILEN_ADDR) && \ + len >= cilen && \ + p[0] == opt) { \ + u32_t l; \ + len -= cilen; \ + INCPTR(2, p); \ + GETLONG(l, p); \ + cilong = lwip_htonl(l); \ + /* Check rejected value. */ \ + if (cilong != addr) \ + goto bad; \ + try_.winsaddr[opt == CI_MS_WINS2] = 0; \ + } +#endif /* UNUSED - WINS */ + + REJCIADDRS(CI_ADDRS, !go->neg_addr && go->old_addrs, + go->ouraddr, go->hisaddr); + +#if VJ_SUPPORT + REJCIVJ(CI_COMPRESSTYPE, neg_vj, go->vj_protocol, go->old_vj, + go->maxslotindex, go->cflag); +#endif /* VJ_SUPPORT */ + + REJCIADDR(CI_ADDR, neg_addr, go->ouraddr); + +#if LWIP_DNS + REJCIDNS(CI_MS_DNS1, req_dns1, go->dnsaddr[0]); + + REJCIDNS(CI_MS_DNS2, req_dns2, go->dnsaddr[1]); +#endif /* LWIP_DNS */ + +#if 0 /* UNUSED - WINS */ + REJCIWINS(CI_MS_WINS1, go->winsaddr[0]); + + REJCIWINS(CI_MS_WINS2, go->winsaddr[1]); +#endif /* UNUSED - WINS */ + + /* + * If there are any remaining CIs, then this packet is bad. + */ + if (len != 0) + goto bad; + /* + * Now we can update state. + */ + if (f->state != PPP_FSM_OPENED) + *go = try_; + return 1; + +bad: + IPCPDEBUG(("ipcp_rejci: received bad Reject!")); + return 0; +} + + +/* + * ipcp_reqci - Check the peer's requested CIs and send appropriate response. + * Callback from fsm_rconfreq, Receive Configure Request + * + * Returns: CONFACK, CONFNAK or CONFREJ and input packet modified + * appropriately. If reject_if_disagree is non-zero, doesn't return + * CONFNAK; returns CONFREJ if it can't return CONFACK. + * + * inp = Requested CIs + * len = Length of requested CIs + */ +static int ipcp_reqci(fsm *f, u_char *inp, int *len, int reject_if_disagree) { + ppp_pcb *pcb = f->pcb; + ipcp_options *wo = &pcb->ipcp_wantoptions; + ipcp_options *ho = &pcb->ipcp_hisoptions; + ipcp_options *ao = &pcb->ipcp_allowoptions; + u_char *cip, *next; /* Pointer to current and next CIs */ + u_short cilen, citype; /* Parsed len, type */ +#if VJ_SUPPORT + u_short cishort; /* Parsed short value */ +#endif /* VJ_SUPPORT */ + u32_t tl, ciaddr1, ciaddr2;/* Parsed address values */ + int rc = CONFACK; /* Final packet return code */ + int orc; /* Individual option return code */ + u_char *p; /* Pointer to next char to parse */ + u_char *ucp = inp; /* Pointer to current output char */ + int l = *len; /* Length left */ +#if VJ_SUPPORT + u_char maxslotindex, cflag; +#endif /* VJ_SUPPORT */ +#if LWIP_DNS + int d; +#endif /* LWIP_DNS */ + + /* + * Reset all his options. + */ + BZERO(ho, sizeof(*ho)); + + /* + * Process all his options. + */ + next = inp; + while (l) { + orc = CONFACK; /* Assume success */ + cip = p = next; /* Remember beginning of CI */ + if (l < 2 || /* Not enough data for CI header or */ + p[1] < 2 || /* CI length too small or */ + p[1] > l) { /* CI length too big? */ + IPCPDEBUG(("ipcp_reqci: bad CI length!")); + orc = CONFREJ; /* Reject bad CI */ + cilen = l; /* Reject till end of packet */ + l = 0; /* Don't loop again */ + goto endswitch; + } + GETCHAR(citype, p); /* Parse CI type */ + GETCHAR(cilen, p); /* Parse CI length */ + l -= cilen; /* Adjust remaining length */ + next += cilen; /* Step to next CI */ + + switch (citype) { /* Check CI type */ + case CI_ADDRS: + if (!ao->old_addrs || ho->neg_addr || + cilen != CILEN_ADDRS) { /* Check CI length */ + orc = CONFREJ; /* Reject CI */ + break; + } + + /* + * If he has no address, or if we both have his address but + * disagree about it, then NAK it with our idea. + * In particular, if we don't know his address, but he does, + * then accept it. + */ + GETLONG(tl, p); /* Parse source address (his) */ + ciaddr1 = lwip_htonl(tl); + if (ciaddr1 != wo->hisaddr + && (ciaddr1 == 0 || !wo->accept_remote)) { + orc = CONFNAK; + if (!reject_if_disagree) { + DECPTR(sizeof(u32_t), p); + tl = lwip_ntohl(wo->hisaddr); + PUTLONG(tl, p); + } + } else if (ciaddr1 == 0 && wo->hisaddr == 0) { + /* + * If neither we nor he knows his address, reject the option. + */ + orc = CONFREJ; + wo->req_addr = 0; /* don't NAK with 0.0.0.0 later */ + break; + } + + /* + * If he doesn't know our address, or if we both have our address + * but disagree about it, then NAK it with our idea. + */ + GETLONG(tl, p); /* Parse destination address (ours) */ + ciaddr2 = lwip_htonl(tl); + if (ciaddr2 != wo->ouraddr) { + if (ciaddr2 == 0 || !wo->accept_local) { + orc = CONFNAK; + if (!reject_if_disagree) { + DECPTR(sizeof(u32_t), p); + tl = lwip_ntohl(wo->ouraddr); + PUTLONG(tl, p); + } + } else { + wo->ouraddr = ciaddr2; /* accept peer's idea */ + } + } + + ho->old_addrs = 1; + ho->hisaddr = ciaddr1; + ho->ouraddr = ciaddr2; + break; + + case CI_ADDR: + if (!ao->neg_addr || ho->old_addrs || + cilen != CILEN_ADDR) { /* Check CI length */ + orc = CONFREJ; /* Reject CI */ + break; + } + + /* + * If he has no address, or if we both have his address but + * disagree about it, then NAK it with our idea. + * In particular, if we don't know his address, but he does, + * then accept it. + */ + GETLONG(tl, p); /* Parse source address (his) */ + ciaddr1 = lwip_htonl(tl); + if (ciaddr1 != wo->hisaddr + && (ciaddr1 == 0 || !wo->accept_remote)) { + orc = CONFNAK; + if (!reject_if_disagree) { + DECPTR(sizeof(u32_t), p); + tl = lwip_ntohl(wo->hisaddr); + PUTLONG(tl, p); + } + } else if (ciaddr1 == 0 && wo->hisaddr == 0) { + /* + * Don't ACK an address of 0.0.0.0 - reject it instead. + */ + orc = CONFREJ; + wo->req_addr = 0; /* don't NAK with 0.0.0.0 later */ + break; + } + + ho->neg_addr = 1; + ho->hisaddr = ciaddr1; + break; + +#if LWIP_DNS + case CI_MS_DNS1: + case CI_MS_DNS2: + /* Microsoft primary or secondary DNS request */ + d = citype == CI_MS_DNS2; + + /* If we do not have a DNS address then we cannot send it */ + if (ao->dnsaddr[d] == 0 || + cilen != CILEN_ADDR) { /* Check CI length */ + orc = CONFREJ; /* Reject CI */ + break; + } + GETLONG(tl, p); + if (lwip_htonl(tl) != ao->dnsaddr[d]) { + DECPTR(sizeof(u32_t), p); + tl = lwip_ntohl(ao->dnsaddr[d]); + PUTLONG(tl, p); + orc = CONFNAK; + } + break; +#endif /* LWIP_DNS */ + +#if 0 /* UNUSED - WINS */ + case CI_MS_WINS1: + case CI_MS_WINS2: + /* Microsoft primary or secondary WINS request */ + d = citype == CI_MS_WINS2; + + /* If we do not have a DNS address then we cannot send it */ + if (ao->winsaddr[d] == 0 || + cilen != CILEN_ADDR) { /* Check CI length */ + orc = CONFREJ; /* Reject CI */ + break; + } + GETLONG(tl, p); + if (lwip_htonl(tl) != ao->winsaddr[d]) { + DECPTR(sizeof(u32_t), p); + tl = lwip_ntohl(ao->winsaddr[d]); + PUTLONG(tl, p); + orc = CONFNAK; + } + break; +#endif /* UNUSED - WINS */ + +#if VJ_SUPPORT + case CI_COMPRESSTYPE: + if (!ao->neg_vj || + (cilen != CILEN_VJ && cilen != CILEN_COMPRESS)) { + orc = CONFREJ; + break; + } + GETSHORT(cishort, p); + + if (!(cishort == IPCP_VJ_COMP || + (cishort == IPCP_VJ_COMP_OLD && cilen == CILEN_COMPRESS))) { + orc = CONFREJ; + break; + } + + ho->neg_vj = 1; + ho->vj_protocol = cishort; + if (cilen == CILEN_VJ) { + GETCHAR(maxslotindex, p); + if (maxslotindex > ao->maxslotindex) { + orc = CONFNAK; + if (!reject_if_disagree){ + DECPTR(1, p); + PUTCHAR(ao->maxslotindex, p); + } + } + GETCHAR(cflag, p); + if (cflag && !ao->cflag) { + orc = CONFNAK; + if (!reject_if_disagree){ + DECPTR(1, p); + PUTCHAR(wo->cflag, p); + } + } + ho->maxslotindex = maxslotindex; + ho->cflag = cflag; + } else { + ho->old_vj = 1; + ho->maxslotindex = MAX_STATES - 1; + ho->cflag = 1; + } + break; +#endif /* VJ_SUPPORT */ + + default: + orc = CONFREJ; + break; + } +endswitch: + if (orc == CONFACK && /* Good CI */ + rc != CONFACK) /* but prior CI wasn't? */ + continue; /* Don't send this one */ + + if (orc == CONFNAK) { /* Nak this CI? */ + if (reject_if_disagree) /* Getting fed up with sending NAKs? */ + orc = CONFREJ; /* Get tough if so */ + else { + if (rc == CONFREJ) /* Rejecting prior CI? */ + continue; /* Don't send this one */ + if (rc == CONFACK) { /* Ack'd all prior CIs? */ + rc = CONFNAK; /* Not anymore... */ + ucp = inp; /* Backup */ + } + } + } + + if (orc == CONFREJ && /* Reject this CI */ + rc != CONFREJ) { /* but no prior ones? */ + rc = CONFREJ; + ucp = inp; /* Backup */ + } + + /* Need to move CI? */ + if (ucp != cip) + MEMCPY(ucp, cip, cilen); /* Move it */ + + /* Update output pointer */ + INCPTR(cilen, ucp); + } + + /* + * If we aren't rejecting this packet, and we want to negotiate + * their address, and they didn't send their address, then we + * send a NAK with a CI_ADDR option appended. We assume the + * input buffer is long enough that we can append the extra + * option safely. + */ + if (rc != CONFREJ && !ho->neg_addr && !ho->old_addrs && + wo->req_addr && !reject_if_disagree && !pcb->settings.noremoteip) { + if (rc == CONFACK) { + rc = CONFNAK; + ucp = inp; /* reset pointer */ + wo->req_addr = 0; /* don't ask again */ + } + PUTCHAR(CI_ADDR, ucp); + PUTCHAR(CILEN_ADDR, ucp); + tl = lwip_ntohl(wo->hisaddr); + PUTLONG(tl, ucp); + } + + *len = ucp - inp; /* Compute output length */ + IPCPDEBUG(("ipcp: returning Configure-%s", CODENAME(rc))); + return (rc); /* Return final code */ +} + + +#if 0 /* UNUSED */ +/* + * ip_check_options - check that any IP-related options are OK, + * and assign appropriate defaults. + */ +static void +ip_check_options() +{ + struct hostent *hp; + u32_t local; + ipcp_options *wo = &ipcp_wantoptions[0]; + + /* + * Default our local IP address based on our hostname. + * If local IP address already given, don't bother. + */ + if (wo->ouraddr == 0 && !disable_defaultip) { + /* + * Look up our hostname (possibly with domain name appended) + * and take the first IP address as our local IP address. + * If there isn't an IP address for our hostname, too bad. + */ + wo->accept_local = 1; /* don't insist on this default value */ + if ((hp = gethostbyname(hostname)) != NULL) { + local = *(u32_t *)hp->h_addr; + if (local != 0 && !bad_ip_adrs(local)) + wo->ouraddr = local; + } + } + ask_for_local = wo->ouraddr != 0 || !disable_defaultip; +} +#endif /* UNUSED */ + +#if DEMAND_SUPPORT +/* + * ip_demand_conf - configure the interface as though + * IPCP were up, for use with dial-on-demand. + */ +static int +ip_demand_conf(u) + int u; +{ + ppp_pcb *pcb = &ppp_pcb_list[u]; + ipcp_options *wo = &ipcp_wantoptions[u]; + + if (wo->hisaddr == 0 && !pcb->settings.noremoteip) { + /* make up an arbitrary address for the peer */ + wo->hisaddr = lwip_htonl(0x0a707070 + ifunit); + wo->accept_remote = 1; + } + if (wo->ouraddr == 0) { + /* make up an arbitrary address for us */ + wo->ouraddr = lwip_htonl(0x0a404040 + ifunit); + wo->accept_local = 1; + ask_for_local = 0; /* don't tell the peer this address */ + } + if (!sifaddr(pcb, wo->ouraddr, wo->hisaddr, get_mask(wo->ouraddr))) + return 0; + if (!sifup(pcb)) + return 0; + if (!sifnpmode(pcb, PPP_IP, NPMODE_QUEUE)) + return 0; +#if 0 /* UNUSED */ + if (wo->default_route) + if (sifdefaultroute(pcb, wo->ouraddr, wo->hisaddr, + wo->replace_default_route)) + default_route_set[u] = 1; +#endif /* UNUSED */ +#if 0 /* UNUSED - PROXY ARP */ + if (wo->proxy_arp) + if (sifproxyarp(pcb, wo->hisaddr)) + proxy_arp_set[u] = 1; +#endif /* UNUSED - PROXY ARP */ + + ppp_notice(("local IP address %I", wo->ouraddr)); + if (wo->hisaddr) + ppp_notice(("remote IP address %I", wo->hisaddr)); + + return 1; +} +#endif /* DEMAND_SUPPORT */ + +/* + * ipcp_up - IPCP has come UP. + * + * Configure the IP network interface appropriately and bring it up. + */ +static void ipcp_up(fsm *f) { + ppp_pcb *pcb = f->pcb; + u32_t mask; + ipcp_options *ho = &pcb->ipcp_hisoptions; + ipcp_options *go = &pcb->ipcp_gotoptions; + ipcp_options *wo = &pcb->ipcp_wantoptions; + + IPCPDEBUG(("ipcp: up")); + + /* + * We must have a non-zero IP address for both ends of the link. + */ + if (!ho->neg_addr && !ho->old_addrs) + ho->hisaddr = wo->hisaddr; + + if (!(go->neg_addr || go->old_addrs) && (wo->neg_addr || wo->old_addrs) + && wo->ouraddr != 0) { + ppp_error(("Peer refused to agree to our IP address")); + ipcp_close(f->pcb, "Refused our IP address"); + return; + } + if (go->ouraddr == 0) { + ppp_error(("Could not determine local IP address")); + ipcp_close(f->pcb, "Could not determine local IP address"); + return; + } + if (ho->hisaddr == 0 && !pcb->settings.noremoteip) { + ho->hisaddr = lwip_htonl(0x0a404040); + ppp_warn(("Could not determine remote IP address: defaulting to %I", + ho->hisaddr)); + } +#if 0 /* UNUSED */ + script_setenv("IPLOCAL", ip_ntoa(go->ouraddr), 0); + if (ho->hisaddr != 0) + script_setenv("IPREMOTE", ip_ntoa(ho->hisaddr), 1); +#endif /* UNUSED */ + +#if LWIP_DNS + if (!go->req_dns1) + go->dnsaddr[0] = 0; + if (!go->req_dns2) + go->dnsaddr[1] = 0; +#if 0 /* UNUSED */ + if (go->dnsaddr[0]) + script_setenv("DNS1", ip_ntoa(go->dnsaddr[0]), 0); + if (go->dnsaddr[1]) + script_setenv("DNS2", ip_ntoa(go->dnsaddr[1]), 0); +#endif /* UNUSED */ + if (pcb->settings.usepeerdns && (go->dnsaddr[0] || go->dnsaddr[1])) { + sdns(pcb, go->dnsaddr[0], go->dnsaddr[1]); +#if 0 /* UNUSED */ + script_setenv("USEPEERDNS", "1", 0); + create_resolv(go->dnsaddr[0], go->dnsaddr[1]); +#endif /* UNUSED */ + } +#endif /* LWIP_DNS */ + + /* + * Check that the peer is allowed to use the IP address it wants. + */ + if (ho->hisaddr != 0) { + u32_t addr = lwip_ntohl(ho->hisaddr); + if ((addr >> IP_CLASSA_NSHIFT) == IP_LOOPBACKNET + || IP_MULTICAST(addr) || IP_BADCLASS(addr) + /* + * For now, consider that PPP in server mode with peer required + * to authenticate must provide the peer IP address, reject any + * IP address wanted by peer different than the one we wanted. + */ +#if PPP_SERVER && PPP_AUTH_SUPPORT + || (pcb->settings.auth_required && wo->hisaddr != ho->hisaddr) +#endif /* PPP_SERVER && PPP_AUTH_SUPPORT */ + ) { + ppp_error(("Peer is not authorized to use remote address %I", ho->hisaddr)); + ipcp_close(pcb, "Unauthorized remote IP address"); + return; + } + } +#if 0 /* Unused */ + /* Upstream checking code */ + if (ho->hisaddr != 0 && !auth_ip_addr(f->unit, ho->hisaddr)) { + ppp_error(("Peer is not authorized to use remote address %I", ho->hisaddr)); + ipcp_close(f->unit, "Unauthorized remote IP address"); + return; + } +#endif /* Unused */ + +#if VJ_SUPPORT + /* set tcp compression */ + sifvjcomp(pcb, ho->neg_vj, ho->cflag, ho->maxslotindex); +#endif /* VJ_SUPPORT */ + +#if DEMAND_SUPPORT + /* + * If we are doing dial-on-demand, the interface is already + * configured, so we put out any saved-up packets, then set the + * interface to pass IP packets. + */ + if (demand) { + if (go->ouraddr != wo->ouraddr || ho->hisaddr != wo->hisaddr) { + ipcp_clear_addrs(f->unit, wo->ouraddr, wo->hisaddr, + wo->replace_default_route); + if (go->ouraddr != wo->ouraddr) { + ppp_warn(("Local IP address changed to %I", go->ouraddr)); + script_setenv("OLDIPLOCAL", ip_ntoa(wo->ouraddr), 0); + wo->ouraddr = go->ouraddr; + } else + script_unsetenv("OLDIPLOCAL"); + if (ho->hisaddr != wo->hisaddr && wo->hisaddr != 0) { + ppp_warn(("Remote IP address changed to %I", ho->hisaddr)); + script_setenv("OLDIPREMOTE", ip_ntoa(wo->hisaddr), 0); + wo->hisaddr = ho->hisaddr; + } else + script_unsetenv("OLDIPREMOTE"); + + /* Set the interface to the new addresses */ + mask = get_mask(go->ouraddr); + if (!sifaddr(pcb, go->ouraddr, ho->hisaddr, mask)) { +#if PPP_DEBUG + ppp_warn(("Interface configuration failed")); +#endif /* PPP_DEBUG */ + ipcp_close(f->unit, "Interface configuration failed"); + return; + } + + /* assign a default route through the interface if required */ + if (ipcp_wantoptions[f->unit].default_route) + if (sifdefaultroute(pcb, go->ouraddr, ho->hisaddr, + wo->replace_default_route)) + default_route_set[f->unit] = 1; + +#if 0 /* UNUSED - PROXY ARP */ + /* Make a proxy ARP entry if requested. */ + if (ho->hisaddr != 0 && ipcp_wantoptions[f->unit].proxy_arp) + if (sifproxyarp(pcb, ho->hisaddr)) + proxy_arp_set[f->unit] = 1; +#endif /* UNUSED - PROXY ARP */ + + } + demand_rexmit(PPP_IP,go->ouraddr); + sifnpmode(pcb, PPP_IP, NPMODE_PASS); + + } else +#endif /* DEMAND_SUPPORT */ + { + /* + * Set IP addresses and (if specified) netmask. + */ + mask = get_mask(go->ouraddr); + +#if !(defined(SVR4) && (defined(SNI) || defined(__USLC__))) + if (!sifaddr(pcb, go->ouraddr, ho->hisaddr, mask)) { +#if PPP_DEBUG + ppp_warn(("Interface configuration failed")); +#endif /* PPP_DEBUG */ + ipcp_close(f->pcb, "Interface configuration failed"); + return; + } +#endif + + /* bring the interface up for IP */ + if (!sifup(pcb)) { +#if PPP_DEBUG + ppp_warn(("Interface failed to come up")); +#endif /* PPP_DEBUG */ + ipcp_close(f->pcb, "Interface configuration failed"); + return; + } + +#if (defined(SVR4) && (defined(SNI) || defined(__USLC__))) + if (!sifaddr(pcb, go->ouraddr, ho->hisaddr, mask)) { +#if PPP_DEBUG + ppp_warn(("Interface configuration failed")); +#endif /* PPP_DEBUG */ + ipcp_close(f->unit, "Interface configuration failed"); + return; + } +#endif +#if DEMAND_SUPPORT + sifnpmode(pcb, PPP_IP, NPMODE_PASS); +#endif /* DEMAND_SUPPORT */ + +#if 0 /* UNUSED */ + /* assign a default route through the interface if required */ + if (wo->default_route) + if (sifdefaultroute(pcb, go->ouraddr, ho->hisaddr, + wo->replace_default_route)) + pcb->default_route_set = 1; +#endif /* UNUSED */ + +#if 0 /* UNUSED - PROXY ARP */ + /* Make a proxy ARP entry if requested. */ + if (ho->hisaddr != 0 && wo->proxy_arp) + if (sifproxyarp(pcb, ho->hisaddr)) + pcb->proxy_arp_set = 1; +#endif /* UNUSED - PROXY ARP */ + + wo->ouraddr = go->ouraddr; + + ppp_notice(("local IP address %I", go->ouraddr)); + if (ho->hisaddr != 0) + ppp_notice(("remote IP address %I", ho->hisaddr)); +#if LWIP_DNS + if (go->dnsaddr[0]) + ppp_notice(("primary DNS address %I", go->dnsaddr[0])); + if (go->dnsaddr[1]) + ppp_notice(("secondary DNS address %I", go->dnsaddr[1])); +#endif /* LWIP_DNS */ + } + +#if PPP_STATS_SUPPORT + reset_link_stats(f->unit); +#endif /* PPP_STATS_SUPPORT */ + + np_up(pcb, PPP_IP); + pcb->ipcp_is_up = 1; + +#if PPP_NOTIFY + notify(ip_up_notifier, 0); +#endif /* PPP_NOTIFY */ +#if 0 /* UNUSED */ + if (ip_up_hook) + ip_up_hook(); +#endif /* UNUSED */ +} + + +/* + * ipcp_down - IPCP has gone DOWN. + * + * Take the IP network interface down, clear its addresses + * and delete routes through it. + */ +static void ipcp_down(fsm *f) { + ppp_pcb *pcb = f->pcb; + ipcp_options *ho = &pcb->ipcp_hisoptions; + ipcp_options *go = &pcb->ipcp_gotoptions; + + IPCPDEBUG(("ipcp: down")); +#if PPP_STATS_SUPPORT + /* XXX a bit IPv4-centric here, we only need to get the stats + * before the interface is marked down. */ + /* XXX more correct: we must get the stats before running the notifiers, + * at least for the radius plugin */ + update_link_stats(f->unit); +#endif /* PPP_STATS_SUPPORT */ +#if PPP_NOTIFY + notify(ip_down_notifier, 0); +#endif /* PPP_NOTIFY */ +#if 0 /* UNUSED */ + if (ip_down_hook) + ip_down_hook(); +#endif /* UNUSED */ + if (pcb->ipcp_is_up) { + pcb->ipcp_is_up = 0; + np_down(pcb, PPP_IP); + } +#if VJ_SUPPORT + sifvjcomp(pcb, 0, 0, 0); +#endif /* VJ_SUPPORT */ + +#if PPP_STATS_SUPPORT + print_link_stats(); /* _after_ running the notifiers and ip_down_hook(), + * because print_link_stats() sets link_stats_valid + * to 0 (zero) */ +#endif /* PPP_STATS_SUPPORT */ + +#if DEMAND_SUPPORT + /* + * If we are doing dial-on-demand, set the interface + * to queue up outgoing packets (for now). + */ + if (demand) { + sifnpmode(pcb, PPP_IP, NPMODE_QUEUE); + } else +#endif /* DEMAND_SUPPORT */ + { +#if DEMAND_SUPPORT + sifnpmode(pcb, PPP_IP, NPMODE_DROP); +#endif /* DEMAND_SUPPORT */ + sifdown(pcb); + ipcp_clear_addrs(pcb, go->ouraddr, + ho->hisaddr, 0); +#if LWIP_DNS + cdns(pcb, go->dnsaddr[0], go->dnsaddr[1]); +#endif /* LWIP_DNS */ + } +} + + +/* + * ipcp_clear_addrs() - clear the interface addresses, routes, + * proxy arp entries, etc. + */ +static void ipcp_clear_addrs(ppp_pcb *pcb, u32_t ouraddr, u32_t hisaddr, u8_t replacedefaultroute) { + LWIP_UNUSED_ARG(replacedefaultroute); + +#if 0 /* UNUSED - PROXY ARP */ + if (pcb->proxy_arp_set) { + cifproxyarp(pcb, hisaddr); + pcb->proxy_arp_set = 0; + } +#endif /* UNUSED - PROXY ARP */ +#if 0 /* UNUSED */ + /* If replacedefaultroute, sifdefaultroute will be called soon + * with replacedefaultroute set and that will overwrite the current + * default route. This is the case only when doing demand, otherwise + * during demand, this cifdefaultroute would restore the old default + * route which is not what we want in this case. In the non-demand + * case, we'll delete the default route and restore the old if there + * is one saved by an sifdefaultroute with replacedefaultroute. + */ + if (!replacedefaultroute && pcb->default_route_set) { + cifdefaultroute(pcb, ouraddr, hisaddr); + pcb->default_route_set = 0; + } +#endif /* UNUSED */ + cifaddr(pcb, ouraddr, hisaddr); +} + + +/* + * ipcp_finished - possibly shut down the lower layers. + */ +static void ipcp_finished(fsm *f) { + ppp_pcb *pcb = f->pcb; + if (pcb->ipcp_is_open) { + pcb->ipcp_is_open = 0; + np_finished(pcb, PPP_IP); + } +} + + +#if 0 /* UNUSED */ +/* + * create_resolv - create the replacement resolv.conf file + */ +static void +create_resolv(peerdns1, peerdns2) + u32_t peerdns1, peerdns2; +{ + +} +#endif /* UNUSED */ + +#if PRINTPKT_SUPPORT +/* + * ipcp_printpkt - print the contents of an IPCP packet. + */ +static const char* const ipcp_codenames[] = { + "ConfReq", "ConfAck", "ConfNak", "ConfRej", + "TermReq", "TermAck", "CodeRej" +}; + +static int ipcp_printpkt(const u_char *p, int plen, + void (*printer) (void *, const char *, ...), void *arg) { + int code, id, len, olen; + const u_char *pstart, *optend; +#if VJ_SUPPORT + u_short cishort; +#endif /* VJ_SUPPORT */ + u32_t cilong; + + if (plen < HEADERLEN) + return 0; + pstart = p; + GETCHAR(code, p); + GETCHAR(id, p); + GETSHORT(len, p); + if (len < HEADERLEN || len > plen) + return 0; + + if (code >= 1 && code <= (int)LWIP_ARRAYSIZE(ipcp_codenames)) + printer(arg, " %s", ipcp_codenames[code-1]); + else + printer(arg, " code=0x%x", code); + printer(arg, " id=0x%x", id); + len -= HEADERLEN; + switch (code) { + case CONFREQ: + case CONFACK: + case CONFNAK: + case CONFREJ: + /* print option list */ + while (len >= 2) { + GETCHAR(code, p); + GETCHAR(olen, p); + p -= 2; + if (olen < 2 || olen > len) { + break; + } + printer(arg, " <"); + len -= olen; + optend = p + olen; + switch (code) { + case CI_ADDRS: + if (olen == CILEN_ADDRS) { + p += 2; + GETLONG(cilong, p); + printer(arg, "addrs %I", lwip_htonl(cilong)); + GETLONG(cilong, p); + printer(arg, " %I", lwip_htonl(cilong)); + } + break; +#if VJ_SUPPORT + case CI_COMPRESSTYPE: + if (olen >= CILEN_COMPRESS) { + p += 2; + GETSHORT(cishort, p); + printer(arg, "compress "); + switch (cishort) { + case IPCP_VJ_COMP: + printer(arg, "VJ"); + break; + case IPCP_VJ_COMP_OLD: + printer(arg, "old-VJ"); + break; + default: + printer(arg, "0x%x", cishort); + } + } + break; +#endif /* VJ_SUPPORT */ + case CI_ADDR: + if (olen == CILEN_ADDR) { + p += 2; + GETLONG(cilong, p); + printer(arg, "addr %I", lwip_htonl(cilong)); + } + break; +#if LWIP_DNS + case CI_MS_DNS1: + case CI_MS_DNS2: + p += 2; + GETLONG(cilong, p); + printer(arg, "ms-dns%d %I", (code == CI_MS_DNS1? 1: 2), + htonl(cilong)); + break; +#endif /* LWIP_DNS */ +#if 0 /* UNUSED - WINS */ + case CI_MS_WINS1: + case CI_MS_WINS2: + p += 2; + GETLONG(cilong, p); + printer(arg, "ms-wins %I", lwip_htonl(cilong)); + break; +#endif /* UNUSED - WINS */ + default: + break; + } + while (p < optend) { + GETCHAR(code, p); + printer(arg, " %.2x", code); + } + printer(arg, ">"); + } + break; + + case TERMACK: + case TERMREQ: + if (len > 0 && *p >= ' ' && *p < 0x7f) { + printer(arg, " "); + ppp_print_string(p, len, printer, arg); + p += len; + len = 0; + } + break; + default: + break; + } + + /* print the rest of the bytes in the packet */ + for (; len > 0; --len) { + GETCHAR(code, p); + printer(arg, " %.2x", code); + } + + return p - pstart; +} +#endif /* PRINTPKT_SUPPORT */ + +#if DEMAND_SUPPORT +/* + * ip_active_pkt - see if this IP packet is worth bringing the link up for. + * We don't bring the link up for IP fragments or for TCP FIN packets + * with no data. + */ +#define IP_HDRLEN 20 /* bytes */ +#define IP_OFFMASK 0x1fff +#ifndef IPPROTO_TCP +#define IPPROTO_TCP 6 +#endif +#define TCP_HDRLEN 20 +#define TH_FIN 0x01 + +/* + * We use these macros because the IP header may be at an odd address, + * and some compilers might use word loads to get th_off or ip_hl. + */ + +#define net_short(x) (((x)[0] << 8) + (x)[1]) +#define get_iphl(x) (((unsigned char *)(x))[0] & 0xF) +#define get_ipoff(x) net_short((unsigned char *)(x) + 6) +#define get_ipproto(x) (((unsigned char *)(x))[9]) +#define get_tcpoff(x) (((unsigned char *)(x))[12] >> 4) +#define get_tcpflags(x) (((unsigned char *)(x))[13]) + +static int +ip_active_pkt(pkt, len) + u_char *pkt; + int len; +{ + u_char *tcp; + int hlen; + + len -= PPP_HDRLEN; + pkt += PPP_HDRLEN; + if (len < IP_HDRLEN) + return 0; + if ((get_ipoff(pkt) & IP_OFFMASK) != 0) + return 0; + if (get_ipproto(pkt) != IPPROTO_TCP) + return 1; + hlen = get_iphl(pkt) * 4; + if (len < hlen + TCP_HDRLEN) + return 0; + tcp = pkt + hlen; + if ((get_tcpflags(tcp) & TH_FIN) != 0 && len == hlen + get_tcpoff(tcp) * 4) + return 0; + return 1; +} +#endif /* DEMAND_SUPPORT */ + +#endif /* PPP_SUPPORT && PPP_IPV4_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/ipv6cp.c b/middleware/lwip/src/netif/ppp/ipv6cp.c new file mode 100644 index 0000000..2035ef9 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/ipv6cp.c @@ -0,0 +1,1533 @@ +/* + * ipv6cp.c - PPP IPV6 Control Protocol. + * + * Copyright (c) 1999 Tommi Komulainen. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Tommi Komulainen + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +/* Original version, based on RFC2023 : + + Copyright (c) 1995, 1996, 1997 Francis.Dupont@inria.fr, INRIA Rocquencourt, + Alain.Durand@imag.fr, IMAG, + Jean-Luc.Richier@imag.fr, IMAG-LSR. + + Copyright (c) 1998, 1999 Francis.Dupont@inria.fr, GIE DYADE, + Alain.Durand@imag.fr, IMAG, + Jean-Luc.Richier@imag.fr, IMAG-LSR. + + Ce travail a été fait au sein du GIE DYADE (Groupement d'Intérêt + Économique ayant pour membres BULL S.A. et l'INRIA). + + Ce logiciel informatique est disponible aux conditions + usuelles dans la recherche, c'est-à-dire qu'il peut + être utilisé, copié, modifié, distribué à l'unique + condition que ce texte soit conservé afin que + l'origine de ce logiciel soit reconnue. + + Le nom de l'Institut National de Recherche en Informatique + et en Automatique (INRIA), de l'IMAG, ou d'une personne morale + ou physique ayant participé à l'élaboration de ce logiciel ne peut + être utilisé sans son accord préalable explicite. + + Ce logiciel est fourni tel quel sans aucune garantie, + support ou responsabilité d'aucune sorte. + Ce logiciel est dérivé de sources d'origine + "University of California at Berkeley" et + "Digital Equipment Corporation" couvertes par des copyrights. + + L'Institut d'Informatique et de Mathématiques Appliquées de Grenoble (IMAG) + est une fédération d'unités mixtes de recherche du CNRS, de l'Institut National + Polytechnique de Grenoble et de l'Université Joseph Fourier regroupant + sept laboratoires don't le laboratoire Logiciels, Systèmes, Réseaux (LSR). + + This work has been done in the context of GIE DYADE (joint R & D venture + between BULL S.A. and INRIA). + + This software is available with usual "research" terms + with the aim of retain credits of the software. + Permission to use, copy, modify and distribute this software for any + purpose and without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies, + and the name of INRIA, IMAG, or any contributor not be used in advertising + or publicity pertaining to this material without the prior explicit + permission. The software is provided "as is" without any + warranties, support or liabilities of any kind. + This software is derived from source code from + "University of California at Berkeley" and + "Digital Equipment Corporation" protected by copyrights. + + Grenoble's Institute of Computer Science and Applied Mathematics (IMAG) + is a federation of seven research units funded by the CNRS, National + Polytechnic Institute of Grenoble and University Joseph Fourier. + The research unit in Software, Systems, Networks (LSR) is member of IMAG. +*/ + +/* + * Derived from : + * + * + * ipcp.c - PPP IP Control Protocol. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: ipv6cp.c,v 1.21 2005/08/25 23:59:34 paulus Exp $ + */ + +/* + * @todo: + * + * Proxy Neighbour Discovery. + * + * Better defines for selecting the ordering of + * interface up / set address. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPP_IPV6_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#if 0 /* UNUSED */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#endif /* UNUSED */ + +#include "netif/ppp/ppp_impl.h" +#include "netif/ppp/fsm.h" +#include "netif/ppp/ipcp.h" +#include "netif/ppp/ipv6cp.h" +#include "netif/ppp/magic.h" + +/* global vars */ +#if 0 /* UNUSED */ +int no_ifaceid_neg = 0; +#endif /* UNUSED */ + +/* + * Callbacks for fsm code. (CI = Configuration Information) + */ +static void ipv6cp_resetci(fsm *f); /* Reset our CI */ +static int ipv6cp_cilen(fsm *f); /* Return length of our CI */ +static void ipv6cp_addci(fsm *f, u_char *ucp, int *lenp); /* Add our CI */ +static int ipv6cp_ackci(fsm *f, u_char *p, int len); /* Peer ack'd our CI */ +static int ipv6cp_nakci(fsm *f, u_char *p, int len, int treat_as_reject); /* Peer nak'd our CI */ +static int ipv6cp_rejci(fsm *f, u_char *p, int len); /* Peer rej'd our CI */ +static int ipv6cp_reqci(fsm *f, u_char *inp, int *len, int reject_if_disagree); /* Rcv CI */ +static void ipv6cp_up(fsm *f); /* We're UP */ +static void ipv6cp_down(fsm *f); /* We're DOWN */ +static void ipv6cp_finished(fsm *f); /* Don't need lower layer */ + +static const fsm_callbacks ipv6cp_callbacks = { /* IPV6CP callback routines */ + ipv6cp_resetci, /* Reset our Configuration Information */ + ipv6cp_cilen, /* Length of our Configuration Information */ + ipv6cp_addci, /* Add our Configuration Information */ + ipv6cp_ackci, /* ACK our Configuration Information */ + ipv6cp_nakci, /* NAK our Configuration Information */ + ipv6cp_rejci, /* Reject our Configuration Information */ + ipv6cp_reqci, /* Request peer's Configuration Information */ + ipv6cp_up, /* Called when fsm reaches OPENED state */ + ipv6cp_down, /* Called when fsm leaves OPENED state */ + NULL, /* Called when we want the lower layer up */ + ipv6cp_finished, /* Called when we want the lower layer down */ + NULL, /* Called when Protocol-Reject received */ + NULL, /* Retransmission is necessary */ + NULL, /* Called to handle protocol-specific codes */ + "IPV6CP" /* String name of protocol */ +}; + +#if PPP_OPTIONS +/* + * Command-line options. + */ +static int setifaceid(char **arg)); +static void printifaceid(option_t *, + void (*)(void *, char *, ...), void *)); + +static option_t ipv6cp_option_list[] = { + { "ipv6", o_special, (void *)setifaceid, + "Set interface identifiers for IPV6", + OPT_A2PRINTER, (void *)printifaceid }, + + { "+ipv6", o_bool, &ipv6cp_protent.enabled_flag, + "Enable IPv6 and IPv6CP", OPT_PRIO | 1 }, + { "noipv6", o_bool, &ipv6cp_protent.enabled_flag, + "Disable IPv6 and IPv6CP", OPT_PRIOSUB }, + { "-ipv6", o_bool, &ipv6cp_protent.enabled_flag, + "Disable IPv6 and IPv6CP", OPT_PRIOSUB | OPT_ALIAS }, + + { "ipv6cp-accept-local", o_bool, &ipv6cp_allowoptions[0].accept_local, + "Accept peer's interface identifier for us", 1 }, + + { "ipv6cp-use-ipaddr", o_bool, &ipv6cp_allowoptions[0].use_ip, + "Use (default) IPv4 address as interface identifier", 1 }, + + { "ipv6cp-use-persistent", o_bool, &ipv6cp_wantoptions[0].use_persistent, + "Use uniquely-available persistent value for link local address", 1 }, + + { "ipv6cp-restart", o_int, &ipv6cp_fsm[0].timeouttime, + "Set timeout for IPv6CP", OPT_PRIO }, + { "ipv6cp-max-terminate", o_int, &ipv6cp_fsm[0].maxtermtransmits, + "Set max #xmits for term-reqs", OPT_PRIO }, + { "ipv6cp-max-configure", o_int, &ipv6cp_fsm[0].maxconfreqtransmits, + "Set max #xmits for conf-reqs", OPT_PRIO }, + { "ipv6cp-max-failure", o_int, &ipv6cp_fsm[0].maxnakloops, + "Set max #conf-naks for IPv6CP", OPT_PRIO }, + + { NULL } +}; +#endif /* PPP_OPTIONS */ + +/* + * Protocol entry points from main code. + */ +static void ipv6cp_init(ppp_pcb *pcb); +static void ipv6cp_open(ppp_pcb *pcb); +static void ipv6cp_close(ppp_pcb *pcb, const char *reason); +static void ipv6cp_lowerup(ppp_pcb *pcb); +static void ipv6cp_lowerdown(ppp_pcb *pcb); +static void ipv6cp_input(ppp_pcb *pcb, u_char *p, int len); +static void ipv6cp_protrej(ppp_pcb *pcb); +#if PPP_OPTIONS +static void ipv6_check_options(void); +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT +static int ipv6_demand_conf(int u); +#endif /* DEMAND_SUPPORT */ +#if PRINTPKT_SUPPORT +static int ipv6cp_printpkt(const u_char *p, int plen, + void (*printer)(void *, const char *, ...), void *arg); +#endif /* PRINTPKT_SUPPORT */ +#if DEMAND_SUPPORT +static int ipv6_active_pkt(u_char *pkt, int len); +#endif /* DEMAND_SUPPORT */ + +const struct protent ipv6cp_protent = { + PPP_IPV6CP, + ipv6cp_init, + ipv6cp_input, + ipv6cp_protrej, + ipv6cp_lowerup, + ipv6cp_lowerdown, + ipv6cp_open, + ipv6cp_close, +#if PRINTPKT_SUPPORT + ipv6cp_printpkt, +#endif /* PRINTPKT_SUPPORT */ +#if PPP_DATAINPUT + NULL, +#endif /* PPP_DATAINPUT */ +#if PRINTPKT_SUPPORT + "IPV6CP", + "IPV6", +#endif /* PRINTPKT_SUPPORT */ +#if PPP_OPTIONS + ipv6cp_option_list, + ipv6_check_options, +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT + ipv6_demand_conf, + ipv6_active_pkt +#endif /* DEMAND_SUPPORT */ +}; + +static void ipv6cp_clear_addrs(ppp_pcb *pcb, eui64_t ourid, eui64_t hisid); +#if 0 /* UNUSED */ +static void ipv6cp_script(char *)); +static void ipv6cp_script_done(void *)); +#endif /* UNUSED */ + +/* + * Lengths of configuration options. + */ +#define CILEN_VOID 2 +#define CILEN_COMPRESS 4 /* length for RFC2023 compress opt. */ +#define CILEN_IFACEID 10 /* RFC2472, interface identifier */ + +#define CODENAME(x) ((x) == CONFACK ? "ACK" : \ + (x) == CONFNAK ? "NAK" : "REJ") + +#if 0 /* UNUSED */ +/* + * This state variable is used to ensure that we don't + * run an ipcp-up/down script while one is already running. + */ +static enum script_state { + s_down, + s_up, +} ipv6cp_script_state; +static pid_t ipv6cp_script_pid; +#endif /* UNUSED */ + +static char *llv6_ntoa(eui64_t ifaceid); + +#if PPP_OPTIONS +/* + * setifaceid - set the interface identifiers manually + */ +static int +setifaceid(argv) + char **argv; +{ + char *comma, *arg, c; + ipv6cp_options *wo = &ipv6cp_wantoptions[0]; + struct in6_addr addr; + static int prio_local, prio_remote; + +#define VALIDID(a) ( (((a).s6_addr32[0] == 0) && ((a).s6_addr32[1] == 0)) && \ + (((a).s6_addr32[2] != 0) || ((a).s6_addr32[3] != 0)) ) + + arg = *argv; + if ((comma = strchr(arg, ',')) == NULL) + comma = arg + strlen(arg); + + /* + * If comma first character, then no local identifier + */ + if (comma != arg) { + c = *comma; + *comma = '\0'; + + if (inet_pton(AF_INET6, arg, &addr) == 0 || !VALIDID(addr)) { + option_error("Illegal interface identifier (local): %s", arg); + return 0; + } + + if (option_priority >= prio_local) { + eui64_copy(addr.s6_addr32[2], wo->ourid); + wo->opt_local = 1; + prio_local = option_priority; + } + *comma = c; + } + + /* + * If comma last character, the no remote identifier + */ + if (*comma != 0 && *++comma != '\0') { + if (inet_pton(AF_INET6, comma, &addr) == 0 || !VALIDID(addr)) { + option_error("Illegal interface identifier (remote): %s", comma); + return 0; + } + if (option_priority >= prio_remote) { + eui64_copy(addr.s6_addr32[2], wo->hisid); + wo->opt_remote = 1; + prio_remote = option_priority; + } + } + + if (override_value("+ipv6", option_priority, option_source)) + ipv6cp_protent.enabled_flag = 1; + return 1; +} + +static void +printifaceid(opt, printer, arg) + option_t *opt; + void (*printer)(void *, char *, ...)); + void *arg; +{ + ipv6cp_options *wo = &ipv6cp_wantoptions[0]; + + if (wo->opt_local) + printer(arg, "%s", llv6_ntoa(wo->ourid)); + printer(arg, ","); + if (wo->opt_remote) + printer(arg, "%s", llv6_ntoa(wo->hisid)); +} +#endif /* PPP_OPTIONS */ + +/* + * Make a string representation of a network address. + */ +static char * +llv6_ntoa(eui64_t ifaceid) +{ + static char b[26]; + + sprintf(b, "fe80::%02x%02x:%02x%02x:%02x%02x:%02x%02x", + ifaceid.e8[0], ifaceid.e8[1], ifaceid.e8[2], ifaceid.e8[3], + ifaceid.e8[4], ifaceid.e8[5], ifaceid.e8[6], ifaceid.e8[7]); + + return b; +} + + +/* + * ipv6cp_init - Initialize IPV6CP. + */ +static void ipv6cp_init(ppp_pcb *pcb) { + fsm *f = &pcb->ipv6cp_fsm; + ipv6cp_options *wo = &pcb->ipv6cp_wantoptions; + ipv6cp_options *ao = &pcb->ipv6cp_allowoptions; + + f->pcb = pcb; + f->protocol = PPP_IPV6CP; + f->callbacks = &ipv6cp_callbacks; + fsm_init(f); + +#if 0 /* Not necessary, everything is cleared in ppp_new() */ + memset(wo, 0, sizeof(*wo)); + memset(ao, 0, sizeof(*ao)); +#endif /* 0 */ + + wo->accept_local = 1; + wo->neg_ifaceid = 1; + ao->neg_ifaceid = 1; + +#ifdef IPV6CP_COMP + wo->neg_vj = 1; + ao->neg_vj = 1; + wo->vj_protocol = IPV6CP_COMP; +#endif + +} + + +/* + * ipv6cp_open - IPV6CP is allowed to come up. + */ +static void ipv6cp_open(ppp_pcb *pcb) { + fsm_open(&pcb->ipv6cp_fsm); +} + + +/* + * ipv6cp_close - Take IPV6CP down. + */ +static void ipv6cp_close(ppp_pcb *pcb, const char *reason) { + fsm_close(&pcb->ipv6cp_fsm, reason); +} + + +/* + * ipv6cp_lowerup - The lower layer is up. + */ +static void ipv6cp_lowerup(ppp_pcb *pcb) { + fsm_lowerup(&pcb->ipv6cp_fsm); +} + + +/* + * ipv6cp_lowerdown - The lower layer is down. + */ +static void ipv6cp_lowerdown(ppp_pcb *pcb) { + fsm_lowerdown(&pcb->ipv6cp_fsm); +} + + +/* + * ipv6cp_input - Input IPV6CP packet. + */ +static void ipv6cp_input(ppp_pcb *pcb, u_char *p, int len) { + fsm_input(&pcb->ipv6cp_fsm, p, len); +} + + +/* + * ipv6cp_protrej - A Protocol-Reject was received for IPV6CP. + * + * Pretend the lower layer went down, so we shut up. + */ +static void ipv6cp_protrej(ppp_pcb *pcb) { + fsm_lowerdown(&pcb->ipv6cp_fsm); +} + + +/* + * ipv6cp_resetci - Reset our CI. + */ +static void ipv6cp_resetci(fsm *f) { + ppp_pcb *pcb = f->pcb; + ipv6cp_options *wo = &pcb->ipv6cp_wantoptions; + ipv6cp_options *go = &pcb->ipv6cp_gotoptions; + ipv6cp_options *ao = &pcb->ipv6cp_allowoptions; + + wo->req_ifaceid = wo->neg_ifaceid && ao->neg_ifaceid; + + if (!wo->opt_local) { + eui64_magic_nz(wo->ourid); + } + + *go = *wo; + eui64_zero(go->hisid); /* last proposed interface identifier */ +} + + +/* + * ipv6cp_cilen - Return length of our CI. + */ +static int ipv6cp_cilen(fsm *f) { + ppp_pcb *pcb = f->pcb; + ipv6cp_options *go = &pcb->ipv6cp_gotoptions; + +#ifdef IPV6CP_COMP +#define LENCIVJ(neg) (neg ? CILEN_COMPRESS : 0) +#endif /* IPV6CP_COMP */ +#define LENCIIFACEID(neg) (neg ? CILEN_IFACEID : 0) + + return (LENCIIFACEID(go->neg_ifaceid) + +#ifdef IPV6CP_COMP + LENCIVJ(go->neg_vj) + +#endif /* IPV6CP_COMP */ + 0); +} + + +/* + * ipv6cp_addci - Add our desired CIs to a packet. + */ +static void ipv6cp_addci(fsm *f, u_char *ucp, int *lenp) { + ppp_pcb *pcb = f->pcb; + ipv6cp_options *go = &pcb->ipv6cp_gotoptions; + int len = *lenp; + +#ifdef IPV6CP_COMP +#define ADDCIVJ(opt, neg, val) \ + if (neg) { \ + int vjlen = CILEN_COMPRESS; \ + if (len >= vjlen) { \ + PUTCHAR(opt, ucp); \ + PUTCHAR(vjlen, ucp); \ + PUTSHORT(val, ucp); \ + len -= vjlen; \ + } else \ + neg = 0; \ + } +#endif /* IPV6CP_COMP */ + +#define ADDCIIFACEID(opt, neg, val1) \ + if (neg) { \ + int idlen = CILEN_IFACEID; \ + if (len >= idlen) { \ + PUTCHAR(opt, ucp); \ + PUTCHAR(idlen, ucp); \ + eui64_put(val1, ucp); \ + len -= idlen; \ + } else \ + neg = 0; \ + } + + ADDCIIFACEID(CI_IFACEID, go->neg_ifaceid, go->ourid); + +#ifdef IPV6CP_COMP + ADDCIVJ(CI_COMPRESSTYPE, go->neg_vj, go->vj_protocol); +#endif /* IPV6CP_COMP */ + + *lenp -= len; +} + + +/* + * ipv6cp_ackci - Ack our CIs. + * + * Returns: + * 0 - Ack was bad. + * 1 - Ack was good. + */ +static int ipv6cp_ackci(fsm *f, u_char *p, int len) { + ppp_pcb *pcb = f->pcb; + ipv6cp_options *go = &pcb->ipv6cp_gotoptions; + u_short cilen, citype; +#ifdef IPV6CP_COMP + u_short cishort; +#endif /* IPV6CP_COMP */ + eui64_t ifaceid; + + /* + * CIs must be in exactly the same order that we sent... + * Check packet length and CI length at each step. + * If we find any deviations, then this packet is bad. + */ + +#ifdef IPV6CP_COMP +#define ACKCIVJ(opt, neg, val) \ + if (neg) { \ + int vjlen = CILEN_COMPRESS; \ + if ((len -= vjlen) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != vjlen || \ + citype != opt) \ + goto bad; \ + GETSHORT(cishort, p); \ + if (cishort != val) \ + goto bad; \ + } +#endif /* IPV6CP_COMP */ + +#define ACKCIIFACEID(opt, neg, val1) \ + if (neg) { \ + int idlen = CILEN_IFACEID; \ + if ((len -= idlen) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != idlen || \ + citype != opt) \ + goto bad; \ + eui64_get(ifaceid, p); \ + if (! eui64_equals(val1, ifaceid)) \ + goto bad; \ + } + + ACKCIIFACEID(CI_IFACEID, go->neg_ifaceid, go->ourid); + +#ifdef IPV6CP_COMP + ACKCIVJ(CI_COMPRESSTYPE, go->neg_vj, go->vj_protocol); +#endif /* IPV6CP_COMP */ + + /* + * If there are any remaining CIs, then this packet is bad. + */ + if (len != 0) + goto bad; + return (1); + +bad: + IPV6CPDEBUG(("ipv6cp_ackci: received bad Ack!")); + return (0); +} + +/* + * ipv6cp_nakci - Peer has sent a NAK for some of our CIs. + * This should not modify any state if the Nak is bad + * or if IPV6CP is in the OPENED state. + * + * Returns: + * 0 - Nak was bad. + * 1 - Nak was good. + */ +static int ipv6cp_nakci(fsm *f, u_char *p, int len, int treat_as_reject) { + ppp_pcb *pcb = f->pcb; + ipv6cp_options *go = &pcb->ipv6cp_gotoptions; + u_char citype, cilen, *next; +#ifdef IPV6CP_COMP + u_short cishort; +#endif /* IPV6CP_COMP */ + eui64_t ifaceid; + ipv6cp_options no; /* options we've seen Naks for */ + ipv6cp_options try_; /* options to request next time */ + + BZERO(&no, sizeof(no)); + try_ = *go; + + /* + * Any Nak'd CIs must be in exactly the same order that we sent. + * Check packet length and CI length at each step. + * If we find any deviations, then this packet is bad. + */ +#define NAKCIIFACEID(opt, neg, code) \ + if (go->neg && \ + len >= (cilen = CILEN_IFACEID) && \ + p[1] == cilen && \ + p[0] == opt) { \ + len -= cilen; \ + INCPTR(2, p); \ + eui64_get(ifaceid, p); \ + no.neg = 1; \ + code \ + } + +#ifdef IPV6CP_COMP +#define NAKCIVJ(opt, neg, code) \ + if (go->neg && \ + ((cilen = p[1]) == CILEN_COMPRESS) && \ + len >= cilen && \ + p[0] == opt) { \ + len -= cilen; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + no.neg = 1; \ + code \ + } +#endif /* IPV6CP_COMP */ + + /* + * Accept the peer's idea of {our,his} interface identifier, if different + * from our idea, only if the accept_{local,remote} flag is set. + */ + NAKCIIFACEID(CI_IFACEID, neg_ifaceid, + if (treat_as_reject) { + try_.neg_ifaceid = 0; + } else if (go->accept_local) { + while (eui64_iszero(ifaceid) || + eui64_equals(ifaceid, go->hisid)) /* bad luck */ + eui64_magic(ifaceid); + try_.ourid = ifaceid; + IPV6CPDEBUG(("local LL address %s", llv6_ntoa(ifaceid))); + } + ); + +#ifdef IPV6CP_COMP + NAKCIVJ(CI_COMPRESSTYPE, neg_vj, + { + if (cishort == IPV6CP_COMP && !treat_as_reject) { + try_.vj_protocol = cishort; + } else { + try_.neg_vj = 0; + } + } + ); +#endif /* IPV6CP_COMP */ + + /* + * There may be remaining CIs, if the peer is requesting negotiation + * on an option that we didn't include in our request packet. + * If they want to negotiate about interface identifier, we comply. + * If they want us to ask for compression, we refuse. + */ + while (len >= CILEN_VOID) { + GETCHAR(citype, p); + GETCHAR(cilen, p); + if ( cilen < CILEN_VOID || (len -= cilen) < 0 ) + goto bad; + next = p + cilen - 2; + + switch (citype) { +#ifdef IPV6CP_COMP + case CI_COMPRESSTYPE: + if (go->neg_vj || no.neg_vj || + (cilen != CILEN_COMPRESS)) + goto bad; + no.neg_vj = 1; + break; +#endif /* IPV6CP_COMP */ + case CI_IFACEID: + if (go->neg_ifaceid || no.neg_ifaceid || cilen != CILEN_IFACEID) + goto bad; + try_.neg_ifaceid = 1; + eui64_get(ifaceid, p); + if (go->accept_local) { + while (eui64_iszero(ifaceid) || + eui64_equals(ifaceid, go->hisid)) /* bad luck */ + eui64_magic(ifaceid); + try_.ourid = ifaceid; + } + no.neg_ifaceid = 1; + break; + default: + break; + } + p = next; + } + + /* If there is still anything left, this packet is bad. */ + if (len != 0) + goto bad; + + /* + * OK, the Nak is good. Now we can update state. + */ + if (f->state != PPP_FSM_OPENED) + *go = try_; + + return 1; + +bad: + IPV6CPDEBUG(("ipv6cp_nakci: received bad Nak!")); + return 0; +} + + +/* + * ipv6cp_rejci - Reject some of our CIs. + */ +static int ipv6cp_rejci(fsm *f, u_char *p, int len) { + ppp_pcb *pcb = f->pcb; + ipv6cp_options *go = &pcb->ipv6cp_gotoptions; + u_char cilen; +#ifdef IPV6CP_COMP + u_short cishort; +#endif /* IPV6CP_COMP */ + eui64_t ifaceid; + ipv6cp_options try_; /* options to request next time */ + + try_ = *go; + /* + * Any Rejected CIs must be in exactly the same order that we sent. + * Check packet length and CI length at each step. + * If we find any deviations, then this packet is bad. + */ +#define REJCIIFACEID(opt, neg, val1) \ + if (go->neg && \ + len >= (cilen = CILEN_IFACEID) && \ + p[1] == cilen && \ + p[0] == opt) { \ + len -= cilen; \ + INCPTR(2, p); \ + eui64_get(ifaceid, p); \ + /* Check rejected value. */ \ + if (! eui64_equals(ifaceid, val1)) \ + goto bad; \ + try_.neg = 0; \ + } + +#ifdef IPV6CP_COMP +#define REJCIVJ(opt, neg, val) \ + if (go->neg && \ + p[1] == CILEN_COMPRESS && \ + len >= p[1] && \ + p[0] == opt) { \ + len -= p[1]; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + /* Check rejected value. */ \ + if (cishort != val) \ + goto bad; \ + try_.neg = 0; \ + } +#endif /* IPV6CP_COMP */ + + REJCIIFACEID(CI_IFACEID, neg_ifaceid, go->ourid); + +#ifdef IPV6CP_COMP + REJCIVJ(CI_COMPRESSTYPE, neg_vj, go->vj_protocol); +#endif /* IPV6CP_COMP */ + + /* + * If there are any remaining CIs, then this packet is bad. + */ + if (len != 0) + goto bad; + /* + * Now we can update state. + */ + if (f->state != PPP_FSM_OPENED) + *go = try_; + return 1; + +bad: + IPV6CPDEBUG(("ipv6cp_rejci: received bad Reject!")); + return 0; +} + + +/* + * ipv6cp_reqci - Check the peer's requested CIs and send appropriate response. + * + * Returns: CONFACK, CONFNAK or CONFREJ and input packet modified + * appropriately. If reject_if_disagree is non-zero, doesn't return + * CONFNAK; returns CONFREJ if it can't return CONFACK. + * + * inp = Requested CIs + * len = Length of requested CIs + * + */ +static int ipv6cp_reqci(fsm *f, u_char *inp, int *len, int reject_if_disagree) { + ppp_pcb *pcb = f->pcb; + ipv6cp_options *wo = &pcb->ipv6cp_wantoptions; + ipv6cp_options *ho = &pcb->ipv6cp_hisoptions; + ipv6cp_options *ao = &pcb->ipv6cp_allowoptions; + ipv6cp_options *go = &pcb->ipv6cp_gotoptions; + u_char *cip, *next; /* Pointer to current and next CIs */ + u_short cilen, citype; /* Parsed len, type */ +#ifdef IPV6CP_COMP + u_short cishort; /* Parsed short value */ +#endif /* IPV6CP_COMP */ + eui64_t ifaceid; /* Parsed interface identifier */ + int rc = CONFACK; /* Final packet return code */ + int orc; /* Individual option return code */ + u_char *p; /* Pointer to next char to parse */ + u_char *ucp = inp; /* Pointer to current output char */ + int l = *len; /* Length left */ + + /* + * Reset all his options. + */ + BZERO(ho, sizeof(*ho)); + + /* + * Process all his options. + */ + next = inp; + while (l) { + orc = CONFACK; /* Assume success */ + cip = p = next; /* Remember beginning of CI */ + if (l < 2 || /* Not enough data for CI header or */ + p[1] < 2 || /* CI length too small or */ + p[1] > l) { /* CI length too big? */ + IPV6CPDEBUG(("ipv6cp_reqci: bad CI length!")); + orc = CONFREJ; /* Reject bad CI */ + cilen = l; /* Reject till end of packet */ + l = 0; /* Don't loop again */ + goto endswitch; + } + GETCHAR(citype, p); /* Parse CI type */ + GETCHAR(cilen, p); /* Parse CI length */ + l -= cilen; /* Adjust remaining length */ + next += cilen; /* Step to next CI */ + + switch (citype) { /* Check CI type */ + case CI_IFACEID: + IPV6CPDEBUG(("ipv6cp: received interface identifier ")); + + if (!ao->neg_ifaceid || + cilen != CILEN_IFACEID) { /* Check CI length */ + orc = CONFREJ; /* Reject CI */ + break; + } + + /* + * If he has no interface identifier, or if we both have same + * identifier then NAK it with new idea. + * In particular, if we don't know his identifier, but he does, + * then accept it. + */ + eui64_get(ifaceid, p); + IPV6CPDEBUG(("(%s)", llv6_ntoa(ifaceid))); + if (eui64_iszero(ifaceid) && eui64_iszero(go->ourid)) { + orc = CONFREJ; /* Reject CI */ + break; + } + if (!eui64_iszero(wo->hisid) && + !eui64_equals(ifaceid, wo->hisid) && + eui64_iszero(go->hisid)) { + + orc = CONFNAK; + ifaceid = wo->hisid; + go->hisid = ifaceid; + DECPTR(sizeof(ifaceid), p); + eui64_put(ifaceid, p); + } else + if (eui64_iszero(ifaceid) || eui64_equals(ifaceid, go->ourid)) { + orc = CONFNAK; + if (eui64_iszero(go->hisid)) /* first time, try option */ + ifaceid = wo->hisid; + while (eui64_iszero(ifaceid) || + eui64_equals(ifaceid, go->ourid)) /* bad luck */ + eui64_magic(ifaceid); + go->hisid = ifaceid; + DECPTR(sizeof(ifaceid), p); + eui64_put(ifaceid, p); + } + + ho->neg_ifaceid = 1; + ho->hisid = ifaceid; + break; + +#ifdef IPV6CP_COMP + case CI_COMPRESSTYPE: + IPV6CPDEBUG(("ipv6cp: received COMPRESSTYPE ")); + if (!ao->neg_vj || + (cilen != CILEN_COMPRESS)) { + orc = CONFREJ; + break; + } + GETSHORT(cishort, p); + IPV6CPDEBUG(("(%d)", cishort)); + + if (!(cishort == IPV6CP_COMP)) { + orc = CONFREJ; + break; + } + + ho->neg_vj = 1; + ho->vj_protocol = cishort; + break; +#endif /* IPV6CP_COMP */ + + default: + orc = CONFREJ; + break; + } + +endswitch: + IPV6CPDEBUG((" (%s)\n", CODENAME(orc))); + + if (orc == CONFACK && /* Good CI */ + rc != CONFACK) /* but prior CI wasn't? */ + continue; /* Don't send this one */ + + if (orc == CONFNAK) { /* Nak this CI? */ + if (reject_if_disagree) /* Getting fed up with sending NAKs? */ + orc = CONFREJ; /* Get tough if so */ + else { + if (rc == CONFREJ) /* Rejecting prior CI? */ + continue; /* Don't send this one */ + if (rc == CONFACK) { /* Ack'd all prior CIs? */ + rc = CONFNAK; /* Not anymore... */ + ucp = inp; /* Backup */ + } + } + } + + if (orc == CONFREJ && /* Reject this CI */ + rc != CONFREJ) { /* but no prior ones? */ + rc = CONFREJ; + ucp = inp; /* Backup */ + } + + /* Need to move CI? */ + if (ucp != cip) + MEMCPY(ucp, cip, cilen); /* Move it */ + + /* Update output pointer */ + INCPTR(cilen, ucp); + } + + /* + * If we aren't rejecting this packet, and we want to negotiate + * their identifier and they didn't send their identifier, then we + * send a NAK with a CI_IFACEID option appended. We assume the + * input buffer is long enough that we can append the extra + * option safely. + */ + if (rc != CONFREJ && !ho->neg_ifaceid && + wo->req_ifaceid && !reject_if_disagree) { + if (rc == CONFACK) { + rc = CONFNAK; + ucp = inp; /* reset pointer */ + wo->req_ifaceid = 0; /* don't ask again */ + } + PUTCHAR(CI_IFACEID, ucp); + PUTCHAR(CILEN_IFACEID, ucp); + eui64_put(wo->hisid, ucp); + } + + *len = ucp - inp; /* Compute output length */ + IPV6CPDEBUG(("ipv6cp: returning Configure-%s", CODENAME(rc))); + return (rc); /* Return final code */ +} + +#if PPP_OPTIONS +/* + * ipv6_check_options - check that any IP-related options are OK, + * and assign appropriate defaults. + */ +static void ipv6_check_options() { + ipv6cp_options *wo = &ipv6cp_wantoptions[0]; + + if (!ipv6cp_protent.enabled_flag) + return; + + /* + * Persistent link-local id is only used when user has not explicitly + * configure/hard-code the id + */ + if ((wo->use_persistent) && (!wo->opt_local) && (!wo->opt_remote)) { + + /* + * On systems where there are no Ethernet interfaces used, there + * may be other ways to obtain a persistent id. Right now, it + * will fall back to using magic [see eui64_magic] below when + * an EUI-48 from MAC address can't be obtained. Other possibilities + * include obtaining EEPROM serial numbers, or some other unique + * yet persistent number. On Sparc platforms, this is possible, + * but too bad there's no standards yet for x86 machines. + */ + if (ether_to_eui64(&wo->ourid)) { + wo->opt_local = 1; + } + } + + if (!wo->opt_local) { /* init interface identifier */ + if (wo->use_ip && eui64_iszero(wo->ourid)) { + eui64_setlo32(wo->ourid, lwip_ntohl(ipcp_wantoptions[0].ouraddr)); + if (!eui64_iszero(wo->ourid)) + wo->opt_local = 1; + } + + while (eui64_iszero(wo->ourid)) + eui64_magic(wo->ourid); + } + + if (!wo->opt_remote) { + if (wo->use_ip && eui64_iszero(wo->hisid)) { + eui64_setlo32(wo->hisid, lwip_ntohl(ipcp_wantoptions[0].hisaddr)); + if (!eui64_iszero(wo->hisid)) + wo->opt_remote = 1; + } + } + + if (demand && (eui64_iszero(wo->ourid) || eui64_iszero(wo->hisid))) { + option_error("local/remote LL address required for demand-dialling\n"); + exit(1); + } +} +#endif /* PPP_OPTIONS */ + +#if DEMAND_SUPPORT +/* + * ipv6_demand_conf - configure the interface as though + * IPV6CP were up, for use with dial-on-demand. + */ +static int ipv6_demand_conf(int u) { + ipv6cp_options *wo = &ipv6cp_wantoptions[u]; + + if (!sif6up(u)) + return 0; + + if (!sif6addr(u, wo->ourid, wo->hisid)) + return 0; + + if (!sifnpmode(u, PPP_IPV6, NPMODE_QUEUE)) + return 0; + + ppp_notice(("ipv6_demand_conf")); + ppp_notice(("local LL address %s", llv6_ntoa(wo->ourid))); + ppp_notice(("remote LL address %s", llv6_ntoa(wo->hisid))); + + return 1; +} +#endif /* DEMAND_SUPPORT */ + + +/* + * ipv6cp_up - IPV6CP has come UP. + * + * Configure the IPv6 network interface appropriately and bring it up. + */ +static void ipv6cp_up(fsm *f) { + ppp_pcb *pcb = f->pcb; + ipv6cp_options *wo = &pcb->ipv6cp_wantoptions; + ipv6cp_options *ho = &pcb->ipv6cp_hisoptions; + ipv6cp_options *go = &pcb->ipv6cp_gotoptions; + + IPV6CPDEBUG(("ipv6cp: up")); + + /* + * We must have a non-zero LL address for both ends of the link. + */ + if (!ho->neg_ifaceid) + ho->hisid = wo->hisid; + +#if 0 /* UNUSED */ + if(!no_ifaceid_neg) { +#endif /* UNUSED */ + if (eui64_iszero(ho->hisid)) { + ppp_error(("Could not determine remote LL address")); + ipv6cp_close(f->pcb, "Could not determine remote LL address"); + return; + } + if (eui64_iszero(go->ourid)) { + ppp_error(("Could not determine local LL address")); + ipv6cp_close(f->pcb, "Could not determine local LL address"); + return; + } + if (eui64_equals(go->ourid, ho->hisid)) { + ppp_error(("local and remote LL addresses are equal")); + ipv6cp_close(f->pcb, "local and remote LL addresses are equal"); + return; + } +#if 0 /* UNUSED */ + } +#endif /* UNUSED */ +#if 0 /* UNUSED */ + script_setenv("LLLOCAL", llv6_ntoa(go->ourid), 0); + script_setenv("LLREMOTE", llv6_ntoa(ho->hisid), 0); +#endif /* UNUSED */ + +#ifdef IPV6CP_COMP + /* set tcp compression */ + sif6comp(f->unit, ho->neg_vj); +#endif + +#if DEMAND_SUPPORT + /* + * If we are doing dial-on-demand, the interface is already + * configured, so we put out any saved-up packets, then set the + * interface to pass IPv6 packets. + */ + if (demand) { + if (! eui64_equals(go->ourid, wo->ourid) || + ! eui64_equals(ho->hisid, wo->hisid)) { + if (! eui64_equals(go->ourid, wo->ourid)) + warn("Local LL address changed to %s", + llv6_ntoa(go->ourid)); + if (! eui64_equals(ho->hisid, wo->hisid)) + warn("Remote LL address changed to %s", + llv6_ntoa(ho->hisid)); + ipv6cp_clear_addrs(f->pcb, go->ourid, ho->hisid); + + /* Set the interface to the new addresses */ + if (!sif6addr(f->pcb, go->ourid, ho->hisid)) { + if (debug) + warn("sif6addr failed"); + ipv6cp_close(f->unit, "Interface configuration failed"); + return; + } + + } + demand_rexmit(PPP_IPV6); + sifnpmode(f->unit, PPP_IPV6, NPMODE_PASS); + + } else +#endif /* DEMAND_SUPPORT */ + { + /* + * Set LL addresses + */ + if (!sif6addr(f->pcb, go->ourid, ho->hisid)) { + PPPDEBUG(LOG_DEBUG, ("sif6addr failed")); + ipv6cp_close(f->pcb, "Interface configuration failed"); + return; + } + + /* bring the interface up for IPv6 */ + if (!sif6up(f->pcb)) { + PPPDEBUG(LOG_DEBUG, ("sif6up failed (IPV6)")); + ipv6cp_close(f->pcb, "Interface configuration failed"); + return; + } +#if DEMAND_SUPPORT + sifnpmode(f->pcb, PPP_IPV6, NPMODE_PASS); +#endif /* DEMAND_SUPPORT */ + + ppp_notice(("local LL address %s", llv6_ntoa(go->ourid))); + ppp_notice(("remote LL address %s", llv6_ntoa(ho->hisid))); + } + + np_up(f->pcb, PPP_IPV6); + pcb->ipv6cp_is_up = 1; + +#if 0 /* UNUSED */ + /* + * Execute the ipv6-up script, like this: + * /etc/ppp/ipv6-up interface tty speed local-LL remote-LL + */ + if (ipv6cp_script_state == s_down && ipv6cp_script_pid == 0) { + ipv6cp_script_state = s_up; + ipv6cp_script(_PATH_IPV6UP); + } +#endif /* UNUSED */ +} + + +/* + * ipv6cp_down - IPV6CP has gone DOWN. + * + * Take the IPv6 network interface down, clear its addresses + * and delete routes through it. + */ +static void ipv6cp_down(fsm *f) { + ppp_pcb *pcb = f->pcb; + ipv6cp_options *go = &pcb->ipv6cp_gotoptions; + ipv6cp_options *ho = &pcb->ipv6cp_hisoptions; + + IPV6CPDEBUG(("ipv6cp: down")); +#if PPP_STATS_SUPPORT + update_link_stats(f->unit); +#endif /* PPP_STATS_SUPPORT */ + if (pcb->ipv6cp_is_up) { + pcb->ipv6cp_is_up = 0; + np_down(f->pcb, PPP_IPV6); + } +#ifdef IPV6CP_COMP + sif6comp(f->unit, 0); +#endif + +#if DEMAND_SUPPORT + /* + * If we are doing dial-on-demand, set the interface + * to queue up outgoing packets (for now). + */ + if (demand) { + sifnpmode(f->pcb, PPP_IPV6, NPMODE_QUEUE); + } else +#endif /* DEMAND_SUPPORT */ + { +#if DEMAND_SUPPORT + sifnpmode(f->pcb, PPP_IPV6, NPMODE_DROP); +#endif /* DEMAND_SUPPORT */ + ipv6cp_clear_addrs(f->pcb, + go->ourid, + ho->hisid); + sif6down(f->pcb); + } + +#if 0 /* UNUSED */ + /* Execute the ipv6-down script */ + if (ipv6cp_script_state == s_up && ipv6cp_script_pid == 0) { + ipv6cp_script_state = s_down; + ipv6cp_script(_PATH_IPV6DOWN); + } +#endif /* UNUSED */ +} + + +/* + * ipv6cp_clear_addrs() - clear the interface addresses, routes, + * proxy neighbour discovery entries, etc. + */ +static void ipv6cp_clear_addrs(ppp_pcb *pcb, eui64_t ourid, eui64_t hisid) { + cif6addr(pcb, ourid, hisid); +} + + +/* + * ipv6cp_finished - possibly shut down the lower layers. + */ +static void ipv6cp_finished(fsm *f) { + np_finished(f->pcb, PPP_IPV6); +} + + +#if 0 /* UNUSED */ +/* + * ipv6cp_script_done - called when the ipv6-up or ipv6-down script + * has finished. + */ +static void +ipv6cp_script_done(arg) + void *arg; +{ + ipv6cp_script_pid = 0; + switch (ipv6cp_script_state) { + case s_up: + if (ipv6cp_fsm[0].state != PPP_FSM_OPENED) { + ipv6cp_script_state = s_down; + ipv6cp_script(_PATH_IPV6DOWN); + } + break; + case s_down: + if (ipv6cp_fsm[0].state == PPP_FSM_OPENED) { + ipv6cp_script_state = s_up; + ipv6cp_script(_PATH_IPV6UP); + } + break; + } +} + + +/* + * ipv6cp_script - Execute a script with arguments + * interface-name tty-name speed local-LL remote-LL. + */ +static void +ipv6cp_script(script) + char *script; +{ + char strspeed[32], strlocal[32], strremote[32]; + char *argv[8]; + + sprintf(strspeed, "%d", baud_rate); + strcpy(strlocal, llv6_ntoa(ipv6cp_gotoptions[0].ourid)); + strcpy(strremote, llv6_ntoa(ipv6cp_hisoptions[0].hisid)); + + argv[0] = script; + argv[1] = ifname; + argv[2] = devnam; + argv[3] = strspeed; + argv[4] = strlocal; + argv[5] = strremote; + argv[6] = ipparam; + argv[7] = NULL; + + ipv6cp_script_pid = run_program(script, argv, 0, ipv6cp_script_done, + NULL, 0); +} +#endif /* UNUSED */ + +#if PRINTPKT_SUPPORT +/* + * ipv6cp_printpkt - print the contents of an IPV6CP packet. + */ +static const char* const ipv6cp_codenames[] = { + "ConfReq", "ConfAck", "ConfNak", "ConfRej", + "TermReq", "TermAck", "CodeRej" +}; + +static int ipv6cp_printpkt(const u_char *p, int plen, + void (*printer)(void *, const char *, ...), void *arg) { + int code, id, len, olen; + const u_char *pstart, *optend; +#ifdef IPV6CP_COMP + u_short cishort; +#endif /* IPV6CP_COMP */ + eui64_t ifaceid; + + if (plen < HEADERLEN) + return 0; + pstart = p; + GETCHAR(code, p); + GETCHAR(id, p); + GETSHORT(len, p); + if (len < HEADERLEN || len > plen) + return 0; + + if (code >= 1 && code <= (int)LWIP_ARRAYSIZE(ipv6cp_codenames)) + printer(arg, " %s", ipv6cp_codenames[code-1]); + else + printer(arg, " code=0x%x", code); + printer(arg, " id=0x%x", id); + len -= HEADERLEN; + switch (code) { + case CONFREQ: + case CONFACK: + case CONFNAK: + case CONFREJ: + /* print option list */ + while (len >= 2) { + GETCHAR(code, p); + GETCHAR(olen, p); + p -= 2; + if (olen < 2 || olen > len) { + break; + } + printer(arg, " <"); + len -= olen; + optend = p + olen; + switch (code) { +#ifdef IPV6CP_COMP + case CI_COMPRESSTYPE: + if (olen >= CILEN_COMPRESS) { + p += 2; + GETSHORT(cishort, p); + printer(arg, "compress "); + printer(arg, "0x%x", cishort); + } + break; +#endif /* IPV6CP_COMP */ + case CI_IFACEID: + if (olen == CILEN_IFACEID) { + p += 2; + eui64_get(ifaceid, p); + printer(arg, "addr %s", llv6_ntoa(ifaceid)); + } + break; + default: + break; + } + while (p < optend) { + GETCHAR(code, p); + printer(arg, " %.2x", code); + } + printer(arg, ">"); + } + break; + + case TERMACK: + case TERMREQ: + if (len > 0 && *p >= ' ' && *p < 0x7f) { + printer(arg, " "); + ppp_print_string(p, len, printer, arg); + p += len; + len = 0; + } + break; + default: + break; + } + + /* print the rest of the bytes in the packet */ + for (; len > 0; --len) { + GETCHAR(code, p); + printer(arg, " %.2x", code); + } + + return p - pstart; +} +#endif /* PRINTPKT_SUPPORT */ + +#if DEMAND_SUPPORT +/* + * ipv6_active_pkt - see if this IP packet is worth bringing the link up for. + * We don't bring the link up for IP fragments or for TCP FIN packets + * with no data. + */ +#define IP6_HDRLEN 40 /* bytes */ +#define IP6_NHDR_FRAG 44 /* fragment IPv6 header */ +#define TCP_HDRLEN 20 +#define TH_FIN 0x01 + +/* + * We use these macros because the IP header may be at an odd address, + * and some compilers might use word loads to get th_off or ip_hl. + */ + +#define get_ip6nh(x) (((unsigned char *)(x))[6]) +#define get_tcpoff(x) (((unsigned char *)(x))[12] >> 4) +#define get_tcpflags(x) (((unsigned char *)(x))[13]) + +static int ipv6_active_pkt(u_char *pkt, int len) { + u_char *tcp; + + len -= PPP_HDRLEN; + pkt += PPP_HDRLEN; + if (len < IP6_HDRLEN) + return 0; + if (get_ip6nh(pkt) == IP6_NHDR_FRAG) + return 0; + if (get_ip6nh(pkt) != IPPROTO_TCP) + return 1; + if (len < IP6_HDRLEN + TCP_HDRLEN) + return 0; + tcp = pkt + IP6_HDRLEN; + if ((get_tcpflags(tcp) & TH_FIN) != 0 && len == IP6_HDRLEN + get_tcpoff(tcp) * 4) + return 0; + return 1; +} +#endif /* DEMAND_SUPPORT */ + +#endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/lcp.c b/middleware/lwip/src/netif/ppp/lcp.c new file mode 100644 index 0000000..e77ec40 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/lcp.c @@ -0,0 +1,2790 @@ +/* + * lcp.c - PPP Link Control Protocol. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +/* + * @todo: + */ + +#if 0 /* UNUSED */ +#include +#include +#include +#endif /* UNUSED */ + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/fsm.h" +#include "netif/ppp/lcp.h" +#if CHAP_SUPPORT +#include "netif/ppp/chap-new.h" +#endif /* CHAP_SUPPORT */ +#include "netif/ppp/magic.h" + +/* + * When the link comes up we want to be able to wait for a short while, + * or until seeing some input from the peer, before starting to send + * configure-requests. We do this by delaying the fsm_lowerup call. + */ +/* steal a bit in fsm flags word */ +#define DELAYED_UP 0x80 + +static void lcp_delayed_up(void *arg); + +/* + * LCP-related command-line options. + */ +#if 0 /* UNUSED */ +int lcp_echo_interval = 0; /* Interval between LCP echo-requests */ +int lcp_echo_fails = 0; /* Tolerance to unanswered echo-requests */ +#endif /* UNUSED */ + +#if 0 /* UNUSED */ +/* options */ +static u_int lcp_echo_interval = LCP_ECHOINTERVAL; /* Interval between LCP echo-requests */ +static u_int lcp_echo_fails = LCP_MAXECHOFAILS; /* Tolerance to unanswered echo-requests */ +#endif /* UNUSED */ + +#if 0 /* UNUSED */ +#if PPP_LCP_ADAPTIVE +bool lcp_echo_adaptive = 0; /* request echo only if the link was idle */ +#endif +bool lax_recv = 0; /* accept control chars in asyncmap */ +bool noendpoint = 0; /* don't send/accept endpoint discriminator */ +#endif /* UNUSED */ + +#if PPP_OPTIONS +static int noopt (char **); +#endif /* PPP_OPTIONS */ + +#ifdef HAVE_MULTILINK +static int setendpoint (char **); +static void printendpoint (option_t *, void (*)(void *, char *, ...), + void *); +#endif /* HAVE_MULTILINK */ + +#if PPP_OPTIONS +static option_t lcp_option_list[] = { + /* LCP options */ + { "-all", o_special_noarg, (void *)noopt, + "Don't request/allow any LCP options" }, + + { "noaccomp", o_bool, &lcp_wantoptions[0].neg_accompression, + "Disable address/control compression", + OPT_A2CLR, &lcp_allowoptions[0].neg_accompression }, + { "-ac", o_bool, &lcp_wantoptions[0].neg_accompression, + "Disable address/control compression", + OPT_ALIAS | OPT_A2CLR, &lcp_allowoptions[0].neg_accompression }, + + { "asyncmap", o_uint32, &lcp_wantoptions[0].asyncmap, + "Set asyncmap (for received packets)", + OPT_OR, &lcp_wantoptions[0].neg_asyncmap }, + { "-as", o_uint32, &lcp_wantoptions[0].asyncmap, + "Set asyncmap (for received packets)", + OPT_ALIAS | OPT_OR, &lcp_wantoptions[0].neg_asyncmap }, + { "default-asyncmap", o_uint32, &lcp_wantoptions[0].asyncmap, + "Disable asyncmap negotiation", + OPT_OR | OPT_NOARG | OPT_VAL(~0U) | OPT_A2CLR, + &lcp_allowoptions[0].neg_asyncmap }, + { "-am", o_uint32, &lcp_wantoptions[0].asyncmap, + "Disable asyncmap negotiation", + OPT_ALIAS | OPT_OR | OPT_NOARG | OPT_VAL(~0U) | OPT_A2CLR, + &lcp_allowoptions[0].neg_asyncmap }, + + { "nomagic", o_bool, &lcp_wantoptions[0].neg_magicnumber, + "Disable magic number negotiation (looped-back line detection)", + OPT_A2CLR, &lcp_allowoptions[0].neg_magicnumber }, + { "-mn", o_bool, &lcp_wantoptions[0].neg_magicnumber, + "Disable magic number negotiation (looped-back line detection)", + OPT_ALIAS | OPT_A2CLR, &lcp_allowoptions[0].neg_magicnumber }, + + { "mru", o_int, &lcp_wantoptions[0].mru, + "Set MRU (maximum received packet size) for negotiation", + OPT_PRIO, &lcp_wantoptions[0].neg_mru }, + { "default-mru", o_bool, &lcp_wantoptions[0].neg_mru, + "Disable MRU negotiation (use default 1500)", + OPT_PRIOSUB | OPT_A2CLR, &lcp_allowoptions[0].neg_mru }, + { "-mru", o_bool, &lcp_wantoptions[0].neg_mru, + "Disable MRU negotiation (use default 1500)", + OPT_ALIAS | OPT_PRIOSUB | OPT_A2CLR, &lcp_allowoptions[0].neg_mru }, + + { "mtu", o_int, &lcp_allowoptions[0].mru, + "Set our MTU", OPT_LIMITS, NULL, MAXMRU, MINMRU }, + + { "nopcomp", o_bool, &lcp_wantoptions[0].neg_pcompression, + "Disable protocol field compression", + OPT_A2CLR, &lcp_allowoptions[0].neg_pcompression }, + { "-pc", o_bool, &lcp_wantoptions[0].neg_pcompression, + "Disable protocol field compression", + OPT_ALIAS | OPT_A2CLR, &lcp_allowoptions[0].neg_pcompression }, + + { "passive", o_bool, &lcp_wantoptions[0].passive, + "Set passive mode", 1 }, + { "-p", o_bool, &lcp_wantoptions[0].passive, + "Set passive mode", OPT_ALIAS | 1 }, + + { "silent", o_bool, &lcp_wantoptions[0].silent, + "Set silent mode", 1 }, + + { "lcp-echo-failure", o_int, &lcp_echo_fails, + "Set number of consecutive echo failures to indicate link failure", + OPT_PRIO }, + { "lcp-echo-interval", o_int, &lcp_echo_interval, + "Set time in seconds between LCP echo requests", OPT_PRIO }, +#if PPP_LCP_ADAPTIVE + { "lcp-echo-adaptive", o_bool, &lcp_echo_adaptive, + "Suppress LCP echo requests if traffic was received", 1 }, +#endif + { "lcp-restart", o_int, &lcp_fsm[0].timeouttime, + "Set time in seconds between LCP retransmissions", OPT_PRIO }, + { "lcp-max-terminate", o_int, &lcp_fsm[0].maxtermtransmits, + "Set maximum number of LCP terminate-request transmissions", OPT_PRIO }, + { "lcp-max-configure", o_int, &lcp_fsm[0].maxconfreqtransmits, + "Set maximum number of LCP configure-request transmissions", OPT_PRIO }, + { "lcp-max-failure", o_int, &lcp_fsm[0].maxnakloops, + "Set limit on number of LCP configure-naks", OPT_PRIO }, + + { "receive-all", o_bool, &lax_recv, + "Accept all received control characters", 1 }, + +#ifdef HAVE_MULTILINK + { "mrru", o_int, &lcp_wantoptions[0].mrru, + "Maximum received packet size for multilink bundle", + OPT_PRIO, &lcp_wantoptions[0].neg_mrru }, + + { "mpshortseq", o_bool, &lcp_wantoptions[0].neg_ssnhf, + "Use short sequence numbers in multilink headers", + OPT_PRIO | 1, &lcp_allowoptions[0].neg_ssnhf }, + { "nompshortseq", o_bool, &lcp_wantoptions[0].neg_ssnhf, + "Don't use short sequence numbers in multilink headers", + OPT_PRIOSUB | OPT_A2CLR, &lcp_allowoptions[0].neg_ssnhf }, + + { "endpoint", o_special, (void *) setendpoint, + "Endpoint discriminator for multilink", + OPT_PRIO | OPT_A2PRINTER, (void *) printendpoint }, +#endif /* HAVE_MULTILINK */ + + { "noendpoint", o_bool, &noendpoint, + "Don't send or accept multilink endpoint discriminator", 1 }, + + {NULL} +}; +#endif /* PPP_OPTIONS */ + +/* + * Callbacks for fsm code. (CI = Configuration Information) + */ +static void lcp_resetci(fsm *f); /* Reset our CI */ +static int lcp_cilen(fsm *f); /* Return length of our CI */ +static void lcp_addci(fsm *f, u_char *ucp, int *lenp); /* Add our CI to pkt */ +static int lcp_ackci(fsm *f, u_char *p, int len); /* Peer ack'd our CI */ +static int lcp_nakci(fsm *f, u_char *p, int len, int treat_as_reject); /* Peer nak'd our CI */ +static int lcp_rejci(fsm *f, u_char *p, int len); /* Peer rej'd our CI */ +static int lcp_reqci(fsm *f, u_char *inp, int *lenp, int reject_if_disagree); /* Rcv peer CI */ +static void lcp_up(fsm *f); /* We're UP */ +static void lcp_down(fsm *f); /* We're DOWN */ +static void lcp_starting (fsm *); /* We need lower layer up */ +static void lcp_finished (fsm *); /* We need lower layer down */ +static int lcp_extcode(fsm *f, int code, int id, u_char *inp, int len); +static void lcp_rprotrej(fsm *f, u_char *inp, int len); + +/* + * routines to send LCP echos to peer + */ + +static void lcp_echo_lowerup(ppp_pcb *pcb); +static void lcp_echo_lowerdown(ppp_pcb *pcb); +static void LcpEchoTimeout(void *arg); +static void lcp_received_echo_reply(fsm *f, int id, u_char *inp, int len); +static void LcpSendEchoRequest(fsm *f); +static void LcpLinkFailure(fsm *f); +static void LcpEchoCheck(fsm *f); + +static const fsm_callbacks lcp_callbacks = { /* LCP callback routines */ + lcp_resetci, /* Reset our Configuration Information */ + lcp_cilen, /* Length of our Configuration Information */ + lcp_addci, /* Add our Configuration Information */ + lcp_ackci, /* ACK our Configuration Information */ + lcp_nakci, /* NAK our Configuration Information */ + lcp_rejci, /* Reject our Configuration Information */ + lcp_reqci, /* Request peer's Configuration Information */ + lcp_up, /* Called when fsm reaches OPENED state */ + lcp_down, /* Called when fsm leaves OPENED state */ + lcp_starting, /* Called when we want the lower layer up */ + lcp_finished, /* Called when we want the lower layer down */ + NULL, /* Called when Protocol-Reject received */ + NULL, /* Retransmission is necessary */ + lcp_extcode, /* Called to handle LCP-specific codes */ + "LCP" /* String name of protocol */ +}; + +/* + * Protocol entry points. + * Some of these are called directly. + */ + +static void lcp_init(ppp_pcb *pcb); +static void lcp_input(ppp_pcb *pcb, u_char *p, int len); +static void lcp_protrej(ppp_pcb *pcb); +#if PRINTPKT_SUPPORT +static int lcp_printpkt(const u_char *p, int plen, + void (*printer) (void *, const char *, ...), void *arg); +#endif /* PRINTPKT_SUPPORT */ + +const struct protent lcp_protent = { + PPP_LCP, + lcp_init, + lcp_input, + lcp_protrej, + lcp_lowerup, + lcp_lowerdown, + lcp_open, + lcp_close, +#if PRINTPKT_SUPPORT + lcp_printpkt, +#endif /* PRINTPKT_SUPPORT */ +#if PPP_DATAINPUT + NULL, +#endif /* PPP_DATAINPUT */ +#if PRINTPKT_SUPPORT + "LCP", + NULL, +#endif /* PRINTPKT_SUPPORT */ +#if PPP_OPTIONS + lcp_option_list, + NULL, +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT + NULL, + NULL +#endif /* DEMAND_SUPPORT */ +}; + +/* + * Length of each type of configuration option (in octets) + */ +#define CILEN_VOID 2 +#define CILEN_CHAR 3 +#define CILEN_SHORT 4 /* CILEN_VOID + 2 */ +#if CHAP_SUPPORT +#define CILEN_CHAP 5 /* CILEN_VOID + 2 + 1 */ +#endif /* CHAP_SUPPORT */ +#define CILEN_LONG 6 /* CILEN_VOID + 4 */ +#if LQR_SUPPORT +#define CILEN_LQR 8 /* CILEN_VOID + 2 + 4 */ +#endif /* LQR_SUPPORT */ +#define CILEN_CBCP 3 + +#define CODENAME(x) ((x) == CONFACK ? "ACK" : \ + (x) == CONFNAK ? "NAK" : "REJ") + +#if PPP_OPTIONS +/* + * noopt - Disable all options (why?). + */ +static int +noopt(argv) + char **argv; +{ + BZERO((char *) &lcp_wantoptions[0], sizeof (struct lcp_options)); + BZERO((char *) &lcp_allowoptions[0], sizeof (struct lcp_options)); + + return (1); +} +#endif /* PPP_OPTIONS */ + +#ifdef HAVE_MULTILINK +static int +setendpoint(argv) + char **argv; +{ + if (str_to_epdisc(&lcp_wantoptions[0].endpoint, *argv)) { + lcp_wantoptions[0].neg_endpoint = 1; + return 1; + } + option_error("Can't parse '%s' as an endpoint discriminator", *argv); + return 0; +} + +static void +printendpoint(opt, printer, arg) + option_t *opt; + void (*printer) (void *, char *, ...); + void *arg; +{ + printer(arg, "%s", epdisc_to_str(&lcp_wantoptions[0].endpoint)); +} +#endif /* HAVE_MULTILINK */ + +/* + * lcp_init - Initialize LCP. + */ +static void lcp_init(ppp_pcb *pcb) { + fsm *f = &pcb->lcp_fsm; + lcp_options *wo = &pcb->lcp_wantoptions; + lcp_options *ao = &pcb->lcp_allowoptions; + + f->pcb = pcb; + f->protocol = PPP_LCP; + f->callbacks = &lcp_callbacks; + + fsm_init(f); + + BZERO(wo, sizeof(*wo)); + wo->neg_mru = 1; + wo->mru = PPP_DEFMRU; + wo->neg_asyncmap = 1; + wo->neg_magicnumber = 1; + wo->neg_pcompression = 1; + wo->neg_accompression = 1; + + BZERO(ao, sizeof(*ao)); + ao->neg_mru = 1; + ao->mru = PPP_MAXMRU; + ao->neg_asyncmap = 1; +#if CHAP_SUPPORT + ao->neg_chap = 1; + ao->chap_mdtype = CHAP_MDTYPE_SUPPORTED; +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + ao->neg_upap = 1; +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + ao->neg_eap = 1; +#endif /* EAP_SUPPORT */ + ao->neg_magicnumber = 1; + ao->neg_pcompression = 1; + ao->neg_accompression = 1; + ao->neg_endpoint = 1; +} + + +/* + * lcp_open - LCP is allowed to come up. + */ +void lcp_open(ppp_pcb *pcb) { + fsm *f = &pcb->lcp_fsm; + lcp_options *wo = &pcb->lcp_wantoptions; + + f->flags &= ~(OPT_PASSIVE | OPT_SILENT); + if (wo->passive) + f->flags |= OPT_PASSIVE; + if (wo->silent) + f->flags |= OPT_SILENT; + fsm_open(f); +} + + +/* + * lcp_close - Take LCP down. + */ +void lcp_close(ppp_pcb *pcb, const char *reason) { + fsm *f = &pcb->lcp_fsm; + int oldstate; + + if (pcb->phase != PPP_PHASE_DEAD +#ifdef HAVE_MULTILINK + && pcb->phase != PPP_PHASE_MASTER +#endif /* HAVE_MULTILINK */ + ) + new_phase(pcb, PPP_PHASE_TERMINATE); + + if (f->flags & DELAYED_UP) { + UNTIMEOUT(lcp_delayed_up, f); + f->state = PPP_FSM_STOPPED; + } + oldstate = f->state; + + fsm_close(f, reason); + if (oldstate == PPP_FSM_STOPPED && (f->flags & (OPT_PASSIVE|OPT_SILENT|DELAYED_UP))) { + /* + * This action is not strictly according to the FSM in RFC1548, + * but it does mean that the program terminates if you do a + * lcp_close() when a connection hasn't been established + * because we are in passive/silent mode or because we have + * delayed the fsm_lowerup() call and it hasn't happened yet. + */ + f->flags &= ~DELAYED_UP; + lcp_finished(f); + } +} + + +/* + * lcp_lowerup - The lower layer is up. + */ +void lcp_lowerup(ppp_pcb *pcb) { + lcp_options *wo = &pcb->lcp_wantoptions; + fsm *f = &pcb->lcp_fsm; + /* + * Don't use A/C or protocol compression on transmission, + * but accept A/C and protocol compressed packets + * if we are going to ask for A/C and protocol compression. + */ + if (ppp_send_config(pcb, PPP_MRU, 0xffffffff, 0, 0) < 0 + || ppp_recv_config(pcb, PPP_MRU, (pcb->settings.lax_recv? 0: 0xffffffff), + wo->neg_pcompression, wo->neg_accompression) < 0) + return; + pcb->peer_mru = PPP_MRU; + + if (pcb->settings.listen_time != 0) { + f->flags |= DELAYED_UP; + TIMEOUTMS(lcp_delayed_up, f, pcb->settings.listen_time); + } else + fsm_lowerup(f); +} + + +/* + * lcp_lowerdown - The lower layer is down. + */ +void lcp_lowerdown(ppp_pcb *pcb) { + fsm *f = &pcb->lcp_fsm; + + if (f->flags & DELAYED_UP) { + f->flags &= ~DELAYED_UP; + UNTIMEOUT(lcp_delayed_up, f); + } else + fsm_lowerdown(f); +} + + +/* + * lcp_delayed_up - Bring the lower layer up now. + */ +static void lcp_delayed_up(void *arg) { + fsm *f = (fsm*)arg; + + if (f->flags & DELAYED_UP) { + f->flags &= ~DELAYED_UP; + fsm_lowerup(f); + } +} + + +/* + * lcp_input - Input LCP packet. + */ +static void lcp_input(ppp_pcb *pcb, u_char *p, int len) { + fsm *f = &pcb->lcp_fsm; + + if (f->flags & DELAYED_UP) { + f->flags &= ~DELAYED_UP; + UNTIMEOUT(lcp_delayed_up, f); + fsm_lowerup(f); + } + fsm_input(f, p, len); +} + +/* + * lcp_extcode - Handle a LCP-specific code. + */ +static int lcp_extcode(fsm *f, int code, int id, u_char *inp, int len) { + ppp_pcb *pcb = f->pcb; + lcp_options *go = &pcb->lcp_gotoptions; + u_char *magp; + + switch( code ){ + case PROTREJ: + lcp_rprotrej(f, inp, len); + break; + + case ECHOREQ: + if (f->state != PPP_FSM_OPENED) + break; + magp = inp; + PUTLONG(go->magicnumber, magp); + fsm_sdata(f, ECHOREP, id, inp, len); + break; + + case ECHOREP: + lcp_received_echo_reply(f, id, inp, len); + break; + + case DISCREQ: + case IDENTIF: + case TIMEREM: + break; + + default: + return 0; + } + return 1; +} + + +/* + * lcp_rprotrej - Receive an Protocol-Reject. + * + * Figure out which protocol is rejected and inform it. + */ +static void lcp_rprotrej(fsm *f, u_char *inp, int len) { + int i; + const struct protent *protp; + u_short prot; +#if PPP_PROTOCOLNAME + const char *pname; +#endif /* PPP_PROTOCOLNAME */ + + if (len < 2) { + LCPDEBUG(("lcp_rprotrej: Rcvd short Protocol-Reject packet!")); + return; + } + + GETSHORT(prot, inp); + + /* + * Protocol-Reject packets received in any state other than the LCP + * OPENED state SHOULD be silently discarded. + */ + if( f->state != PPP_FSM_OPENED ){ + LCPDEBUG(("Protocol-Reject discarded: LCP in state %d", f->state)); + return; + } + +#if PPP_PROTOCOLNAME + pname = protocol_name(prot); +#endif /* PPP_PROTOCOLNAME */ + + /* + * Upcall the proper Protocol-Reject routine. + */ + for (i = 0; (protp = protocols[i]) != NULL; ++i) + if (protp->protocol == prot) { +#if PPP_PROTOCOLNAME + if (pname != NULL) + ppp_dbglog(("Protocol-Reject for '%s' (0x%x) received", pname, + prot)); + else +#endif /* PPP_PROTOCOLNAME */ + ppp_dbglog(("Protocol-Reject for 0x%x received", prot)); + (*protp->protrej)(f->pcb); + return; + } + +#if PPP_PROTOCOLNAME + if (pname != NULL) + ppp_warn(("Protocol-Reject for unsupported protocol '%s' (0x%x)", pname, + prot)); + else +#endif /* #if PPP_PROTOCOLNAME */ + ppp_warn(("Protocol-Reject for unsupported protocol 0x%x", prot)); +} + + +/* + * lcp_protrej - A Protocol-Reject was received. + */ +/*ARGSUSED*/ +static void lcp_protrej(ppp_pcb *pcb) { + /* + * Can't reject LCP! + */ + ppp_error(("Received Protocol-Reject for LCP!")); + fsm_protreject(&pcb->lcp_fsm); +} + + +/* + * lcp_sprotrej - Send a Protocol-Reject for some protocol. + */ +void lcp_sprotrej(ppp_pcb *pcb, u_char *p, int len) { + fsm *f = &pcb->lcp_fsm; + /* + * Send back the protocol and the information field of the + * rejected packet. We only get here if LCP is in the OPENED state. + */ +#if 0 + p += 2; + len -= 2; +#endif + + fsm_sdata(f, PROTREJ, ++f->id, + p, len); +} + + +/* + * lcp_resetci - Reset our CI. + */ +static void lcp_resetci(fsm *f) { + ppp_pcb *pcb = f->pcb; + lcp_options *wo = &pcb->lcp_wantoptions; + lcp_options *go = &pcb->lcp_gotoptions; + lcp_options *ao = &pcb->lcp_allowoptions; + +#if PPP_AUTH_SUPPORT + + /* note: default value is true for allow options */ + if (pcb->settings.user && pcb->settings.passwd) { +#if PAP_SUPPORT + if (pcb->settings.refuse_pap) { + ao->neg_upap = 0; + } +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + if (pcb->settings.refuse_chap) { + ao->chap_mdtype &= ~MDTYPE_MD5; + } +#if MSCHAP_SUPPORT + if (pcb->settings.refuse_mschap) { + ao->chap_mdtype &= ~MDTYPE_MICROSOFT; + } + if (pcb->settings.refuse_mschap_v2) { + ao->chap_mdtype &= ~MDTYPE_MICROSOFT_V2; + } +#endif /* MSCHAP_SUPPORT */ + ao->neg_chap = (ao->chap_mdtype != MDTYPE_NONE); +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + if (pcb->settings.refuse_eap) { + ao->neg_eap = 0; + } +#endif /* EAP_SUPPORT */ + +#if PPP_SERVER + /* note: default value is false for wanted options */ + if (pcb->settings.auth_required) { +#if PAP_SUPPORT + if (!pcb->settings.refuse_pap) { + wo->neg_upap = 1; + } +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + if (!pcb->settings.refuse_chap) { + wo->chap_mdtype |= MDTYPE_MD5; + } +#if MSCHAP_SUPPORT + if (!pcb->settings.refuse_mschap) { + wo->chap_mdtype |= MDTYPE_MICROSOFT; + } + if (!pcb->settings.refuse_mschap_v2) { + wo->chap_mdtype |= MDTYPE_MICROSOFT_V2; + } +#endif /* MSCHAP_SUPPORT */ + wo->neg_chap = (wo->chap_mdtype != MDTYPE_NONE); +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + if (!pcb->settings.refuse_eap) { + wo->neg_eap = 1; + } +#endif /* EAP_SUPPORT */ + } +#endif /* PPP_SERVER */ + + } else { +#if PAP_SUPPORT + ao->neg_upap = 0; +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + ao->neg_chap = 0; + ao->chap_mdtype = MDTYPE_NONE; +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + ao->neg_eap = 0; +#endif /* EAP_SUPPORT */ + } + + PPPDEBUG(LOG_DEBUG, ("ppp: auth protocols:")); +#if PAP_SUPPORT + PPPDEBUG(LOG_DEBUG, (" PAP=%d", ao->neg_upap)); +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + PPPDEBUG(LOG_DEBUG, (" CHAP=%d CHAP_MD5=%d", ao->neg_chap, !!(ao->chap_mdtype&MDTYPE_MD5))); +#if MSCHAP_SUPPORT + PPPDEBUG(LOG_DEBUG, (" CHAP_MS=%d CHAP_MS2=%d", !!(ao->chap_mdtype&MDTYPE_MICROSOFT), !!(ao->chap_mdtype&MDTYPE_MICROSOFT_V2))); +#endif /* MSCHAP_SUPPORT */ +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + PPPDEBUG(LOG_DEBUG, (" EAP=%d", ao->neg_eap)); +#endif /* EAP_SUPPORT */ + PPPDEBUG(LOG_DEBUG, ("\n")); + +#endif /* PPP_AUTH_SUPPORT */ + + wo->magicnumber = magic(); + wo->numloops = 0; + *go = *wo; +#ifdef HAVE_MULTILINK + if (!multilink) { + go->neg_mrru = 0; +#endif /* HAVE_MULTILINK */ + go->neg_ssnhf = 0; + go->neg_endpoint = 0; +#ifdef HAVE_MULTILINK + } +#endif /* HAVE_MULTILINK */ + if (pcb->settings.noendpoint) + ao->neg_endpoint = 0; + pcb->peer_mru = PPP_MRU; +#if 0 /* UNUSED */ + auth_reset(pcb); +#endif /* UNUSED */ +} + + +/* + * lcp_cilen - Return length of our CI. + */ +static int lcp_cilen(fsm *f) { + ppp_pcb *pcb = f->pcb; + lcp_options *go = &pcb->lcp_gotoptions; + +#define LENCIVOID(neg) ((neg) ? CILEN_VOID : 0) +#if CHAP_SUPPORT +#define LENCICHAP(neg) ((neg) ? CILEN_CHAP : 0) +#endif /* CHAP_SUPPORT */ +#define LENCISHORT(neg) ((neg) ? CILEN_SHORT : 0) +#define LENCILONG(neg) ((neg) ? CILEN_LONG : 0) +#if LQR_SUPPORT +#define LENCILQR(neg) ((neg) ? CILEN_LQR: 0) +#endif /* LQR_SUPPORT */ +#define LENCICBCP(neg) ((neg) ? CILEN_CBCP: 0) + /* + * NB: we only ask for one of CHAP, UPAP, or EAP, even if we will + * accept more than one. We prefer EAP first, then CHAP, then + * PAP. + */ + return (LENCISHORT(go->neg_mru && go->mru != PPP_DEFMRU) + + LENCILONG(go->neg_asyncmap && go->asyncmap != 0xFFFFFFFF) + +#if EAP_SUPPORT + LENCISHORT(go->neg_eap) + +#endif /* EAP_SUPPORT */ +#if CHAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portable */ +#if EAP_SUPPORT + LENCICHAP(!go->neg_eap && go->neg_chap) + +#endif /* EAP_SUPPORT */ +#if !EAP_SUPPORT + LENCICHAP(go->neg_chap) + +#endif /* !EAP_SUPPORT */ +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portable */ +#if EAP_SUPPORT && CHAP_SUPPORT + LENCISHORT(!go->neg_eap && !go->neg_chap && go->neg_upap) + +#endif /* EAP_SUPPORT && CHAP_SUPPORT */ +#if EAP_SUPPORT && !CHAP_SUPPORT + LENCISHORT(!go->neg_eap && go->neg_upap) + +#endif /* EAP_SUPPORT && !CHAP_SUPPORT */ +#if !EAP_SUPPORT && CHAP_SUPPORT + LENCISHORT(!go->neg_chap && go->neg_upap) + +#endif /* !EAP_SUPPORT && CHAP_SUPPORT */ +#if !EAP_SUPPORT && !CHAP_SUPPORT + LENCISHORT(go->neg_upap) + +#endif /* !EAP_SUPPORT && !CHAP_SUPPORT */ +#endif /* PAP_SUPPORT */ +#if LQR_SUPPORT + LENCILQR(go->neg_lqr) + +#endif /* LQR_SUPPORT */ + LENCICBCP(go->neg_cbcp) + + LENCILONG(go->neg_magicnumber) + + LENCIVOID(go->neg_pcompression) + + LENCIVOID(go->neg_accompression) + +#ifdef HAVE_MULTILINK + LENCISHORT(go->neg_mrru) + +#endif /* HAVE_MULTILINK */ + LENCIVOID(go->neg_ssnhf) + + (go->neg_endpoint? CILEN_CHAR + go->endpoint.length: 0)); +} + + +/* + * lcp_addci - Add our desired CIs to a packet. + */ +static void lcp_addci(fsm *f, u_char *ucp, int *lenp) { + ppp_pcb *pcb = f->pcb; + lcp_options *go = &pcb->lcp_gotoptions; + u_char *start_ucp = ucp; + +#define ADDCIVOID(opt, neg) \ + if (neg) { \ + PUTCHAR(opt, ucp); \ + PUTCHAR(CILEN_VOID, ucp); \ + } +#define ADDCISHORT(opt, neg, val) \ + if (neg) { \ + PUTCHAR(opt, ucp); \ + PUTCHAR(CILEN_SHORT, ucp); \ + PUTSHORT(val, ucp); \ + } +#if CHAP_SUPPORT +#define ADDCICHAP(opt, neg, val) \ + if (neg) { \ + PUTCHAR((opt), ucp); \ + PUTCHAR(CILEN_CHAP, ucp); \ + PUTSHORT(PPP_CHAP, ucp); \ + PUTCHAR((CHAP_DIGEST(val)), ucp); \ + } +#endif /* CHAP_SUPPORT */ +#define ADDCILONG(opt, neg, val) \ + if (neg) { \ + PUTCHAR(opt, ucp); \ + PUTCHAR(CILEN_LONG, ucp); \ + PUTLONG(val, ucp); \ + } +#if LQR_SUPPORT +#define ADDCILQR(opt, neg, val) \ + if (neg) { \ + PUTCHAR(opt, ucp); \ + PUTCHAR(CILEN_LQR, ucp); \ + PUTSHORT(PPP_LQR, ucp); \ + PUTLONG(val, ucp); \ + } +#endif /* LQR_SUPPORT */ +#define ADDCICHAR(opt, neg, val) \ + if (neg) { \ + PUTCHAR(opt, ucp); \ + PUTCHAR(CILEN_CHAR, ucp); \ + PUTCHAR(val, ucp); \ + } +#define ADDCIENDP(opt, neg, class, val, len) \ + if (neg) { \ + int i; \ + PUTCHAR(opt, ucp); \ + PUTCHAR(CILEN_CHAR + len, ucp); \ + PUTCHAR(class, ucp); \ + for (i = 0; i < len; ++i) \ + PUTCHAR(val[i], ucp); \ + } + + ADDCISHORT(CI_MRU, go->neg_mru && go->mru != PPP_DEFMRU, go->mru); + ADDCILONG(CI_ASYNCMAP, go->neg_asyncmap && go->asyncmap != 0xFFFFFFFF, + go->asyncmap); +#if EAP_SUPPORT + ADDCISHORT(CI_AUTHTYPE, go->neg_eap, PPP_EAP); +#endif /* EAP_SUPPORT */ +#if CHAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portable */ +#if EAP_SUPPORT + ADDCICHAP(CI_AUTHTYPE, !go->neg_eap && go->neg_chap, go->chap_mdtype); +#endif /* EAP_SUPPORT */ +#if !EAP_SUPPORT + ADDCICHAP(CI_AUTHTYPE, go->neg_chap, go->chap_mdtype); +#endif /* !EAP_SUPPORT */ +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portable */ +#if EAP_SUPPORT && CHAP_SUPPORT + ADDCISHORT(CI_AUTHTYPE, !go->neg_eap && !go->neg_chap && go->neg_upap, PPP_PAP); +#endif /* EAP_SUPPORT && CHAP_SUPPORT */ +#if EAP_SUPPORT && !CHAP_SUPPORT + ADDCISHORT(CI_AUTHTYPE, !go->neg_eap && go->neg_upap, PPP_PAP); +#endif /* EAP_SUPPORT && !CHAP_SUPPORT */ +#if !EAP_SUPPORT && CHAP_SUPPORT + ADDCISHORT(CI_AUTHTYPE, !go->neg_chap && go->neg_upap, PPP_PAP); +#endif /* !EAP_SUPPORT && CHAP_SUPPORT */ +#if !EAP_SUPPORT && !CHAP_SUPPORT + ADDCISHORT(CI_AUTHTYPE, go->neg_upap, PPP_PAP); +#endif /* !EAP_SUPPORT && !CHAP_SUPPORT */ +#endif /* PAP_SUPPORT */ +#if LQR_SUPPORT + ADDCILQR(CI_QUALITY, go->neg_lqr, go->lqr_period); +#endif /* LQR_SUPPORT */ + ADDCICHAR(CI_CALLBACK, go->neg_cbcp, CBCP_OPT); + ADDCILONG(CI_MAGICNUMBER, go->neg_magicnumber, go->magicnumber); + ADDCIVOID(CI_PCOMPRESSION, go->neg_pcompression); + ADDCIVOID(CI_ACCOMPRESSION, go->neg_accompression); +#ifdef HAVE_MULTILINK + ADDCISHORT(CI_MRRU, go->neg_mrru, go->mrru); +#endif + ADDCIVOID(CI_SSNHF, go->neg_ssnhf); + ADDCIENDP(CI_EPDISC, go->neg_endpoint, go->endpoint.class_, + go->endpoint.value, go->endpoint.length); + + if (ucp - start_ucp != *lenp) { + /* this should never happen, because peer_mtu should be 1500 */ + ppp_error(("Bug in lcp_addci: wrong length")); + } +} + + +/* + * lcp_ackci - Ack our CIs. + * This should not modify any state if the Ack is bad. + * + * Returns: + * 0 - Ack was bad. + * 1 - Ack was good. + */ +static int lcp_ackci(fsm *f, u_char *p, int len) { + ppp_pcb *pcb = f->pcb; + lcp_options *go = &pcb->lcp_gotoptions; + u_char cilen, citype, cichar; + u_short cishort; + u32_t cilong; + + /* + * CIs must be in exactly the same order that we sent. + * Check packet length and CI length at each step. + * If we find any deviations, then this packet is bad. + */ +#define ACKCIVOID(opt, neg) \ + if (neg) { \ + if ((len -= CILEN_VOID) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_VOID || \ + citype != opt) \ + goto bad; \ + } +#define ACKCISHORT(opt, neg, val) \ + if (neg) { \ + if ((len -= CILEN_SHORT) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_SHORT || \ + citype != opt) \ + goto bad; \ + GETSHORT(cishort, p); \ + if (cishort != val) \ + goto bad; \ + } +#define ACKCICHAR(opt, neg, val) \ + if (neg) { \ + if ((len -= CILEN_CHAR) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_CHAR || \ + citype != opt) \ + goto bad; \ + GETCHAR(cichar, p); \ + if (cichar != val) \ + goto bad; \ + } +#if CHAP_SUPPORT +#define ACKCICHAP(opt, neg, val) \ + if (neg) { \ + if ((len -= CILEN_CHAP) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_CHAP || \ + citype != (opt)) \ + goto bad; \ + GETSHORT(cishort, p); \ + if (cishort != PPP_CHAP) \ + goto bad; \ + GETCHAR(cichar, p); \ + if (cichar != (CHAP_DIGEST(val))) \ + goto bad; \ + } +#endif /* CHAP_SUPPORT */ +#define ACKCILONG(opt, neg, val) \ + if (neg) { \ + if ((len -= CILEN_LONG) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_LONG || \ + citype != opt) \ + goto bad; \ + GETLONG(cilong, p); \ + if (cilong != val) \ + goto bad; \ + } +#if LQR_SUPPORT +#define ACKCILQR(opt, neg, val) \ + if (neg) { \ + if ((len -= CILEN_LQR) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_LQR || \ + citype != opt) \ + goto bad; \ + GETSHORT(cishort, p); \ + if (cishort != PPP_LQR) \ + goto bad; \ + GETLONG(cilong, p); \ + if (cilong != val) \ + goto bad; \ + } +#endif /* LQR_SUPPORT */ +#define ACKCIENDP(opt, neg, class, val, vlen) \ + if (neg) { \ + int i; \ + if ((len -= CILEN_CHAR + vlen) < 0) \ + goto bad; \ + GETCHAR(citype, p); \ + GETCHAR(cilen, p); \ + if (cilen != CILEN_CHAR + vlen || \ + citype != opt) \ + goto bad; \ + GETCHAR(cichar, p); \ + if (cichar != class) \ + goto bad; \ + for (i = 0; i < vlen; ++i) { \ + GETCHAR(cichar, p); \ + if (cichar != val[i]) \ + goto bad; \ + } \ + } + + ACKCISHORT(CI_MRU, go->neg_mru && go->mru != PPP_DEFMRU, go->mru); + ACKCILONG(CI_ASYNCMAP, go->neg_asyncmap && go->asyncmap != 0xFFFFFFFF, + go->asyncmap); +#if EAP_SUPPORT + ACKCISHORT(CI_AUTHTYPE, go->neg_eap, PPP_EAP); +#endif /* EAP_SUPPORT */ +#if CHAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portable */ +#if EAP_SUPPORT + ACKCICHAP(CI_AUTHTYPE, !go->neg_eap && go->neg_chap, go->chap_mdtype); +#endif /* EAP_SUPPORT */ +#if !EAP_SUPPORT + ACKCICHAP(CI_AUTHTYPE, go->neg_chap, go->chap_mdtype); +#endif /* !EAP_SUPPORT */ +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portable */ +#if EAP_SUPPORT && CHAP_SUPPORT + ACKCISHORT(CI_AUTHTYPE, !go->neg_eap && !go->neg_chap && go->neg_upap, PPP_PAP); +#endif /* EAP_SUPPORT && CHAP_SUPPORT */ +#if EAP_SUPPORT && !CHAP_SUPPORT + ACKCISHORT(CI_AUTHTYPE, !go->neg_eap && go->neg_upap, PPP_PAP); +#endif /* EAP_SUPPORT && !CHAP_SUPPORT */ +#if !EAP_SUPPORT && CHAP_SUPPORT + ACKCISHORT(CI_AUTHTYPE, !go->neg_chap && go->neg_upap, PPP_PAP); +#endif /* !EAP_SUPPORT && CHAP_SUPPORT */ +#if !EAP_SUPPORT && !CHAP_SUPPORT + ACKCISHORT(CI_AUTHTYPE, go->neg_upap, PPP_PAP); +#endif /* !EAP_SUPPORT && !CHAP_SUPPORT */ +#endif /* PAP_SUPPORT */ +#if LQR_SUPPORT + ACKCILQR(CI_QUALITY, go->neg_lqr, go->lqr_period); +#endif /* LQR_SUPPORT */ + ACKCICHAR(CI_CALLBACK, go->neg_cbcp, CBCP_OPT); + ACKCILONG(CI_MAGICNUMBER, go->neg_magicnumber, go->magicnumber); + ACKCIVOID(CI_PCOMPRESSION, go->neg_pcompression); + ACKCIVOID(CI_ACCOMPRESSION, go->neg_accompression); +#ifdef HAVE_MULTILINK + ACKCISHORT(CI_MRRU, go->neg_mrru, go->mrru); +#endif /* HAVE_MULTILINK */ + ACKCIVOID(CI_SSNHF, go->neg_ssnhf); + ACKCIENDP(CI_EPDISC, go->neg_endpoint, go->endpoint.class_, + go->endpoint.value, go->endpoint.length); + + /* + * If there are any remaining CIs, then this packet is bad. + */ + if (len != 0) + goto bad; + return (1); +bad: + LCPDEBUG(("lcp_acki: received bad Ack!")); + return (0); +} + + +/* + * lcp_nakci - Peer has sent a NAK for some of our CIs. + * This should not modify any state if the Nak is bad + * or if LCP is in the OPENED state. + * + * Returns: + * 0 - Nak was bad. + * 1 - Nak was good. + */ +static int lcp_nakci(fsm *f, u_char *p, int len, int treat_as_reject) { + ppp_pcb *pcb = f->pcb; + lcp_options *go = &pcb->lcp_gotoptions; + lcp_options *wo = &pcb->lcp_wantoptions; + u_char citype, cichar, *next; + u_short cishort; + u32_t cilong; + lcp_options no; /* options we've seen Naks for */ + lcp_options try_; /* options to request next time */ + int looped_back = 0; + int cilen; + + BZERO(&no, sizeof(no)); + try_ = *go; + + /* + * Any Nak'd CIs must be in exactly the same order that we sent. + * Check packet length and CI length at each step. + * If we find any deviations, then this packet is bad. + */ +#define NAKCIVOID(opt, neg) \ + if (go->neg && \ + len >= CILEN_VOID && \ + p[1] == CILEN_VOID && \ + p[0] == opt) { \ + len -= CILEN_VOID; \ + INCPTR(CILEN_VOID, p); \ + no.neg = 1; \ + try_.neg = 0; \ + } +#if CHAP_SUPPORT +#define NAKCICHAP(opt, neg, code) \ + if (go->neg && \ + len >= CILEN_CHAP && \ + p[1] == CILEN_CHAP && \ + p[0] == opt) { \ + len -= CILEN_CHAP; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + GETCHAR(cichar, p); \ + no.neg = 1; \ + code \ + } +#endif /* CHAP_SUPPORT */ +#define NAKCICHAR(opt, neg, code) \ + if (go->neg && \ + len >= CILEN_CHAR && \ + p[1] == CILEN_CHAR && \ + p[0] == opt) { \ + len -= CILEN_CHAR; \ + INCPTR(2, p); \ + GETCHAR(cichar, p); \ + no.neg = 1; \ + code \ + } +#define NAKCISHORT(opt, neg, code) \ + if (go->neg && \ + len >= CILEN_SHORT && \ + p[1] == CILEN_SHORT && \ + p[0] == opt) { \ + len -= CILEN_SHORT; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + no.neg = 1; \ + code \ + } +#define NAKCILONG(opt, neg, code) \ + if (go->neg && \ + len >= CILEN_LONG && \ + p[1] == CILEN_LONG && \ + p[0] == opt) { \ + len -= CILEN_LONG; \ + INCPTR(2, p); \ + GETLONG(cilong, p); \ + no.neg = 1; \ + code \ + } +#if LQR_SUPPORT +#define NAKCILQR(opt, neg, code) \ + if (go->neg && \ + len >= CILEN_LQR && \ + p[1] == CILEN_LQR && \ + p[0] == opt) { \ + len -= CILEN_LQR; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + GETLONG(cilong, p); \ + no.neg = 1; \ + code \ + } +#endif /* LQR_SUPPORT */ +#define NAKCIENDP(opt, neg) \ + if (go->neg && \ + len >= CILEN_CHAR && \ + p[0] == opt && \ + p[1] >= CILEN_CHAR && \ + p[1] <= len) { \ + len -= p[1]; \ + INCPTR(p[1], p); \ + no.neg = 1; \ + try_.neg = 0; \ + } + + /* + * NOTE! There must be no assignments to individual fields of *go in + * the code below. Any such assignment is a BUG! + */ + /* + * We don't care if they want to send us smaller packets than + * we want. Therefore, accept any MRU less than what we asked for, + * but then ignore the new value when setting the MRU in the kernel. + * If they send us a bigger MRU than what we asked, accept it, up to + * the limit of the default MRU we'd get if we didn't negotiate. + */ + if (go->neg_mru && go->mru != PPP_DEFMRU) { + NAKCISHORT(CI_MRU, neg_mru, + if (cishort <= wo->mru || cishort <= PPP_DEFMRU) + try_.mru = cishort; + ); + } + + /* + * Add any characters they want to our (receive-side) asyncmap. + */ + if (go->neg_asyncmap && go->asyncmap != 0xFFFFFFFF) { + NAKCILONG(CI_ASYNCMAP, neg_asyncmap, + try_.asyncmap = go->asyncmap | cilong; + ); + } + + /* + * If they've nak'd our authentication-protocol, check whether + * they are proposing a different protocol, or a different + * hash algorithm for CHAP. + */ + if ((0 +#if CHAP_SUPPORT + || go->neg_chap +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + || go->neg_upap +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + || go->neg_eap +#endif /* EAP_SUPPORT */ + ) + && len >= CILEN_SHORT + && p[0] == CI_AUTHTYPE && p[1] >= CILEN_SHORT && p[1] <= len) { + cilen = p[1]; + len -= cilen; +#if CHAP_SUPPORT + no.neg_chap = go->neg_chap; +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + no.neg_upap = go->neg_upap; +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + no.neg_eap = go->neg_eap; +#endif /* EAP_SUPPORT */ + INCPTR(2, p); + GETSHORT(cishort, p); + +#if PAP_SUPPORT + if (cishort == PPP_PAP && cilen == CILEN_SHORT) { +#if EAP_SUPPORT + /* If we were asking for EAP, then we need to stop that. */ + if (go->neg_eap) + try_.neg_eap = 0; + else +#endif /* EAP_SUPPORT */ + +#if CHAP_SUPPORT + /* If we were asking for CHAP, then we need to stop that. */ + if (go->neg_chap) + try_.neg_chap = 0; + else +#endif /* CHAP_SUPPORT */ + + /* + * If we weren't asking for CHAP or EAP, then we were asking for + * PAP, in which case this Nak is bad. + */ + goto bad; + } else +#endif /* PAP_SUPPORT */ + +#if CHAP_SUPPORT + if (cishort == PPP_CHAP && cilen == CILEN_CHAP) { + GETCHAR(cichar, p); +#if EAP_SUPPORT + /* Stop asking for EAP, if we were. */ + if (go->neg_eap) { + try_.neg_eap = 0; + /* Try to set up to use their suggestion, if possible */ + if (CHAP_CANDIGEST(go->chap_mdtype, cichar)) + try_.chap_mdtype = CHAP_MDTYPE_D(cichar); + } else +#endif /* EAP_SUPPORT */ + if (go->neg_chap) { + /* + * We were asking for our preferred algorithm, they must + * want something different. + */ + if (cichar != CHAP_DIGEST(go->chap_mdtype)) { + if (CHAP_CANDIGEST(go->chap_mdtype, cichar)) { + /* Use their suggestion if we support it ... */ + try_.chap_mdtype = CHAP_MDTYPE_D(cichar); + } else { + /* ... otherwise, try our next-preferred algorithm. */ + try_.chap_mdtype &= ~(CHAP_MDTYPE(try_.chap_mdtype)); + if (try_.chap_mdtype == MDTYPE_NONE) /* out of algos */ + try_.neg_chap = 0; + } + } else { + /* + * Whoops, they Nak'd our algorithm of choice + * but then suggested it back to us. + */ + goto bad; + } + } else { + /* + * Stop asking for PAP if we were asking for it. + */ +#if PAP_SUPPORT + try_.neg_upap = 0; +#endif /* PAP_SUPPORT */ + } + + } else +#endif /* CHAP_SUPPORT */ + { + +#if EAP_SUPPORT + /* + * If we were asking for EAP, and they're Conf-Naking EAP, + * well, that's just strange. Nobody should do that. + */ + if (cishort == PPP_EAP && cilen == CILEN_SHORT && go->neg_eap) + ppp_dbglog(("Unexpected Conf-Nak for EAP")); + + /* + * We don't recognize what they're suggesting. + * Stop asking for what we were asking for. + */ + if (go->neg_eap) + try_.neg_eap = 0; + else +#endif /* EAP_SUPPORT */ + +#if CHAP_SUPPORT + if (go->neg_chap) + try_.neg_chap = 0; + else +#endif /* CHAP_SUPPORT */ + +#if PAP_SUPPORT + if(1) + try_.neg_upap = 0; + else +#endif /* PAP_SUPPORT */ + {} + + p += cilen - CILEN_SHORT; + } + } + +#if LQR_SUPPORT + /* + * If they can't cope with our link quality protocol, we'll have + * to stop asking for LQR. We haven't got any other protocol. + * If they Nak the reporting period, take their value XXX ? + */ + NAKCILQR(CI_QUALITY, neg_lqr, + if (cishort != PPP_LQR) + try_.neg_lqr = 0; + else + try_.lqr_period = cilong; + ); +#endif /* LQR_SUPPORT */ + + /* + * Only implementing CBCP...not the rest of the callback options + */ + NAKCICHAR(CI_CALLBACK, neg_cbcp, + try_.neg_cbcp = 0; + (void)cichar; /* if CHAP support is not compiled, cichar is set but not used, which makes some compilers complaining */ + ); + + /* + * Check for a looped-back line. + */ + NAKCILONG(CI_MAGICNUMBER, neg_magicnumber, + try_.magicnumber = magic(); + looped_back = 1; + ); + + /* + * Peer shouldn't send Nak for protocol compression or + * address/control compression requests; they should send + * a Reject instead. If they send a Nak, treat it as a Reject. + */ + NAKCIVOID(CI_PCOMPRESSION, neg_pcompression); + NAKCIVOID(CI_ACCOMPRESSION, neg_accompression); + +#ifdef HAVE_MULTILINK + /* + * Nak for MRRU option - accept their value if it is smaller + * than the one we want. + */ + if (go->neg_mrru) { + NAKCISHORT(CI_MRRU, neg_mrru, + if (treat_as_reject) + try_.neg_mrru = 0; + else if (cishort <= wo->mrru) + try_.mrru = cishort; + ); + } +#else /* HAVE_MULTILINK */ + LWIP_UNUSED_ARG(treat_as_reject); +#endif /* HAVE_MULTILINK */ + + /* + * Nak for short sequence numbers shouldn't be sent, treat it + * like a reject. + */ + NAKCIVOID(CI_SSNHF, neg_ssnhf); + + /* + * Nak of the endpoint discriminator option is not permitted, + * treat it like a reject. + */ + NAKCIENDP(CI_EPDISC, neg_endpoint); + + /* + * There may be remaining CIs, if the peer is requesting negotiation + * on an option that we didn't include in our request packet. + * If we see an option that we requested, or one we've already seen + * in this packet, then this packet is bad. + * If we wanted to respond by starting to negotiate on the requested + * option(s), we could, but we don't, because except for the + * authentication type and quality protocol, if we are not negotiating + * an option, it is because we were told not to. + * For the authentication type, the Nak from the peer means + * `let me authenticate myself with you' which is a bit pointless. + * For the quality protocol, the Nak means `ask me to send you quality + * reports', but if we didn't ask for them, we don't want them. + * An option we don't recognize represents the peer asking to + * negotiate some option we don't support, so ignore it. + */ + while (len >= CILEN_VOID) { + GETCHAR(citype, p); + GETCHAR(cilen, p); + if (cilen < CILEN_VOID || (len -= cilen) < 0) + goto bad; + next = p + cilen - 2; + + switch (citype) { + case CI_MRU: + if ((go->neg_mru && go->mru != PPP_DEFMRU) + || no.neg_mru || cilen != CILEN_SHORT) + goto bad; + GETSHORT(cishort, p); + if (cishort < PPP_DEFMRU) { + try_.neg_mru = 1; + try_.mru = cishort; + } + break; + case CI_ASYNCMAP: + if ((go->neg_asyncmap && go->asyncmap != 0xFFFFFFFF) + || no.neg_asyncmap || cilen != CILEN_LONG) + goto bad; + break; + case CI_AUTHTYPE: + if (0 +#if CHAP_SUPPORT + || go->neg_chap || no.neg_chap +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + || go->neg_upap || no.neg_upap +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + || go->neg_eap || no.neg_eap +#endif /* EAP_SUPPORT */ + ) + goto bad; + break; + case CI_MAGICNUMBER: + if (go->neg_magicnumber || no.neg_magicnumber || + cilen != CILEN_LONG) + goto bad; + break; + case CI_PCOMPRESSION: + if (go->neg_pcompression || no.neg_pcompression + || cilen != CILEN_VOID) + goto bad; + break; + case CI_ACCOMPRESSION: + if (go->neg_accompression || no.neg_accompression + || cilen != CILEN_VOID) + goto bad; + break; +#if LQR_SUPPORT + case CI_QUALITY: + if (go->neg_lqr || no.neg_lqr || cilen != CILEN_LQR) + goto bad; + break; +#endif /* LQR_SUPPORT */ +#ifdef HAVE_MULTILINK + case CI_MRRU: + if (go->neg_mrru || no.neg_mrru || cilen != CILEN_SHORT) + goto bad; + break; +#endif /* HAVE_MULTILINK */ + case CI_SSNHF: + if (go->neg_ssnhf || no.neg_ssnhf || cilen != CILEN_VOID) + goto bad; + try_.neg_ssnhf = 1; + break; + case CI_EPDISC: + if (go->neg_endpoint || no.neg_endpoint || cilen < CILEN_CHAR) + goto bad; + break; + default: + break; + } + p = next; + } + + /* + * OK, the Nak is good. Now we can update state. + * If there are any options left we ignore them. + */ + if (f->state != PPP_FSM_OPENED) { + if (looped_back) { + if (++try_.numloops >= pcb->settings.lcp_loopbackfail) { + ppp_notice(("Serial line is looped back.")); + pcb->err_code = PPPERR_LOOPBACK; + lcp_close(f->pcb, "Loopback detected"); + } + } else + try_.numloops = 0; + *go = try_; + } + + return 1; + +bad: + LCPDEBUG(("lcp_nakci: received bad Nak!")); + return 0; +} + + +/* + * lcp_rejci - Peer has Rejected some of our CIs. + * This should not modify any state if the Reject is bad + * or if LCP is in the OPENED state. + * + * Returns: + * 0 - Reject was bad. + * 1 - Reject was good. + */ +static int lcp_rejci(fsm *f, u_char *p, int len) { + ppp_pcb *pcb = f->pcb; + lcp_options *go = &pcb->lcp_gotoptions; + u_char cichar; + u_short cishort; + u32_t cilong; + lcp_options try_; /* options to request next time */ + + try_ = *go; + + /* + * Any Rejected CIs must be in exactly the same order that we sent. + * Check packet length and CI length at each step. + * If we find any deviations, then this packet is bad. + */ +#define REJCIVOID(opt, neg) \ + if (go->neg && \ + len >= CILEN_VOID && \ + p[1] == CILEN_VOID && \ + p[0] == opt) { \ + len -= CILEN_VOID; \ + INCPTR(CILEN_VOID, p); \ + try_.neg = 0; \ + } +#define REJCISHORT(opt, neg, val) \ + if (go->neg && \ + len >= CILEN_SHORT && \ + p[1] == CILEN_SHORT && \ + p[0] == opt) { \ + len -= CILEN_SHORT; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + /* Check rejected value. */ \ + if (cishort != val) \ + goto bad; \ + try_.neg = 0; \ + } + +#if CHAP_SUPPORT && EAP_SUPPORT && PAP_SUPPORT +#define REJCICHAP(opt, neg, val) \ + if (go->neg && \ + len >= CILEN_CHAP && \ + p[1] == CILEN_CHAP && \ + p[0] == opt) { \ + len -= CILEN_CHAP; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + GETCHAR(cichar, p); \ + /* Check rejected value. */ \ + if ((cishort != PPP_CHAP) || (cichar != (CHAP_DIGEST(val)))) \ + goto bad; \ + try_.neg = 0; \ + try_.neg_eap = try_.neg_upap = 0; \ + } +#endif /* CHAP_SUPPORT && EAP_SUPPORT && PAP_SUPPORT */ + +#if CHAP_SUPPORT && !EAP_SUPPORT && PAP_SUPPORT +#define REJCICHAP(opt, neg, val) \ + if (go->neg && \ + len >= CILEN_CHAP && \ + p[1] == CILEN_CHAP && \ + p[0] == opt) { \ + len -= CILEN_CHAP; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + GETCHAR(cichar, p); \ + /* Check rejected value. */ \ + if ((cishort != PPP_CHAP) || (cichar != (CHAP_DIGEST(val)))) \ + goto bad; \ + try_.neg = 0; \ + try_.neg_upap = 0; \ + } +#endif /* CHAP_SUPPORT && !EAP_SUPPORT && PAP_SUPPORT */ + +#if CHAP_SUPPORT && EAP_SUPPORT && !PAP_SUPPORT +#define REJCICHAP(opt, neg, val) \ + if (go->neg && \ + len >= CILEN_CHAP && \ + p[1] == CILEN_CHAP && \ + p[0] == opt) { \ + len -= CILEN_CHAP; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + GETCHAR(cichar, p); \ + /* Check rejected value. */ \ + if ((cishort != PPP_CHAP) || (cichar != (CHAP_DIGEST(val)))) \ + goto bad; \ + try_.neg = 0; \ + try_.neg_eap = 0; \ + } +#endif /* CHAP_SUPPORT && EAP_SUPPORT && !PAP_SUPPORT */ + +#if CHAP_SUPPORT && !EAP_SUPPORT && !PAP_SUPPORT +#define REJCICHAP(opt, neg, val) \ + if (go->neg && \ + len >= CILEN_CHAP && \ + p[1] == CILEN_CHAP && \ + p[0] == opt) { \ + len -= CILEN_CHAP; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + GETCHAR(cichar, p); \ + /* Check rejected value. */ \ + if ((cishort != PPP_CHAP) || (cichar != (CHAP_DIGEST(val)))) \ + goto bad; \ + try_.neg = 0; \ + } +#endif /* CHAP_SUPPORT && !EAP_SUPPORT && !PAP_SUPPORT */ + +#define REJCILONG(opt, neg, val) \ + if (go->neg && \ + len >= CILEN_LONG && \ + p[1] == CILEN_LONG && \ + p[0] == opt) { \ + len -= CILEN_LONG; \ + INCPTR(2, p); \ + GETLONG(cilong, p); \ + /* Check rejected value. */ \ + if (cilong != val) \ + goto bad; \ + try_.neg = 0; \ + } +#if LQR_SUPPORT +#define REJCILQR(opt, neg, val) \ + if (go->neg && \ + len >= CILEN_LQR && \ + p[1] == CILEN_LQR && \ + p[0] == opt) { \ + len -= CILEN_LQR; \ + INCPTR(2, p); \ + GETSHORT(cishort, p); \ + GETLONG(cilong, p); \ + /* Check rejected value. */ \ + if (cishort != PPP_LQR || cilong != val) \ + goto bad; \ + try_.neg = 0; \ + } +#endif /* LQR_SUPPORT */ +#define REJCICBCP(opt, neg, val) \ + if (go->neg && \ + len >= CILEN_CBCP && \ + p[1] == CILEN_CBCP && \ + p[0] == opt) { \ + len -= CILEN_CBCP; \ + INCPTR(2, p); \ + GETCHAR(cichar, p); \ + /* Check rejected value. */ \ + if (cichar != val) \ + goto bad; \ + try_.neg = 0; \ + } +#define REJCIENDP(opt, neg, class, val, vlen) \ + if (go->neg && \ + len >= CILEN_CHAR + vlen && \ + p[0] == opt && \ + p[1] == CILEN_CHAR + vlen) { \ + int i; \ + len -= CILEN_CHAR + vlen; \ + INCPTR(2, p); \ + GETCHAR(cichar, p); \ + if (cichar != class) \ + goto bad; \ + for (i = 0; i < vlen; ++i) { \ + GETCHAR(cichar, p); \ + if (cichar != val[i]) \ + goto bad; \ + } \ + try_.neg = 0; \ + } + + REJCISHORT(CI_MRU, neg_mru, go->mru); + REJCILONG(CI_ASYNCMAP, neg_asyncmap, go->asyncmap); +#if EAP_SUPPORT + REJCISHORT(CI_AUTHTYPE, neg_eap, PPP_EAP); + if (!go->neg_eap) { +#endif /* EAP_SUPPORT */ +#if CHAP_SUPPORT + REJCICHAP(CI_AUTHTYPE, neg_chap, go->chap_mdtype); + if (!go->neg_chap) { +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + REJCISHORT(CI_AUTHTYPE, neg_upap, PPP_PAP); +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + } +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + } +#endif /* EAP_SUPPORT */ +#if LQR_SUPPORT + REJCILQR(CI_QUALITY, neg_lqr, go->lqr_period); +#endif /* LQR_SUPPORT */ + REJCICBCP(CI_CALLBACK, neg_cbcp, CBCP_OPT); + REJCILONG(CI_MAGICNUMBER, neg_magicnumber, go->magicnumber); + REJCIVOID(CI_PCOMPRESSION, neg_pcompression); + REJCIVOID(CI_ACCOMPRESSION, neg_accompression); +#ifdef HAVE_MULTILINK + REJCISHORT(CI_MRRU, neg_mrru, go->mrru); +#endif /* HAVE_MULTILINK */ + REJCIVOID(CI_SSNHF, neg_ssnhf); + REJCIENDP(CI_EPDISC, neg_endpoint, go->endpoint.class_, + go->endpoint.value, go->endpoint.length); + + /* + * If there are any remaining CIs, then this packet is bad. + */ + if (len != 0) + goto bad; + /* + * Now we can update state. + */ + if (f->state != PPP_FSM_OPENED) + *go = try_; + return 1; + +bad: + LCPDEBUG(("lcp_rejci: received bad Reject!")); + return 0; +} + + +/* + * lcp_reqci - Check the peer's requested CIs and send appropriate response. + * + * Returns: CONFACK, CONFNAK or CONFREJ and input packet modified + * appropriately. If reject_if_disagree is non-zero, doesn't return + * CONFNAK; returns CONFREJ if it can't return CONFACK. + * + * inp = Requested CIs + * lenp = Length of requested CIs + */ +static int lcp_reqci(fsm *f, u_char *inp, int *lenp, int reject_if_disagree) { + ppp_pcb *pcb = f->pcb; + lcp_options *go = &pcb->lcp_gotoptions; + lcp_options *ho = &pcb->lcp_hisoptions; + lcp_options *ao = &pcb->lcp_allowoptions; + u_char *cip, *next; /* Pointer to current and next CIs */ + int cilen, citype, cichar; /* Parsed len, type, char value */ + u_short cishort; /* Parsed short value */ + u32_t cilong; /* Parse long value */ + int rc = CONFACK; /* Final packet return code */ + int orc; /* Individual option return code */ + u_char *p; /* Pointer to next char to parse */ + u_char *rejp; /* Pointer to next char in reject frame */ + struct pbuf *nakp; /* Nak buffer */ + u_char *nakoutp; /* Pointer to next char in Nak frame */ + int l = *lenp; /* Length left */ + + /* + * Reset all his options. + */ + BZERO(ho, sizeof(*ho)); + + /* + * Process all his options. + */ + next = inp; + nakp = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_CTRL_PBUF_MAX_SIZE), PPP_CTRL_PBUF_TYPE); + if(NULL == nakp) + return 0; + if(nakp->tot_len != nakp->len) { + pbuf_free(nakp); + return 0; + } + + nakoutp = (u_char*)nakp->payload; + rejp = inp; + while (l) { + orc = CONFACK; /* Assume success */ + cip = p = next; /* Remember beginning of CI */ + if (l < 2 || /* Not enough data for CI header or */ + p[1] < 2 || /* CI length too small or */ + p[1] > l) { /* CI length too big? */ + LCPDEBUG(("lcp_reqci: bad CI length!")); + orc = CONFREJ; /* Reject bad CI */ + cilen = l; /* Reject till end of packet */ + l = 0; /* Don't loop again */ + citype = 0; + goto endswitch; + } + GETCHAR(citype, p); /* Parse CI type */ + GETCHAR(cilen, p); /* Parse CI length */ + l -= cilen; /* Adjust remaining length */ + next += cilen; /* Step to next CI */ + + switch (citype) { /* Check CI type */ + case CI_MRU: + if (!ao->neg_mru || /* Allow option? */ + cilen != CILEN_SHORT) { /* Check CI length */ + orc = CONFREJ; /* Reject CI */ + break; + } + GETSHORT(cishort, p); /* Parse MRU */ + + /* + * He must be able to receive at least our minimum. + * No need to check a maximum. If he sends a large number, + * we'll just ignore it. + */ + if (cishort < PPP_MINMRU) { + orc = CONFNAK; /* Nak CI */ + PUTCHAR(CI_MRU, nakoutp); + PUTCHAR(CILEN_SHORT, nakoutp); + PUTSHORT(PPP_MINMRU, nakoutp); /* Give him a hint */ + break; + } + ho->neg_mru = 1; /* Remember he sent MRU */ + ho->mru = cishort; /* And remember value */ + break; + + case CI_ASYNCMAP: + if (!ao->neg_asyncmap || + cilen != CILEN_LONG) { + orc = CONFREJ; + break; + } + GETLONG(cilong, p); + + /* + * Asyncmap must have set at least the bits + * which are set in lcp_allowoptions[unit].asyncmap. + */ + if ((ao->asyncmap & ~cilong) != 0) { + orc = CONFNAK; + PUTCHAR(CI_ASYNCMAP, nakoutp); + PUTCHAR(CILEN_LONG, nakoutp); + PUTLONG(ao->asyncmap | cilong, nakoutp); + break; + } + ho->neg_asyncmap = 1; + ho->asyncmap = cilong; + break; + + case CI_AUTHTYPE: + if (cilen < CILEN_SHORT || + !(0 +#if PAP_SUPPORT + || ao->neg_upap +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + || ao->neg_chap +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + || ao->neg_eap +#endif /* EAP_SUPPORT */ + )) { + /* + * Reject the option if we're not willing to authenticate. + */ + ppp_dbglog(("No auth is possible")); + orc = CONFREJ; + break; + } + GETSHORT(cishort, p); + + /* + * Authtype must be PAP, CHAP, or EAP. + * + * Note: if more than one of ao->neg_upap, ao->neg_chap, and + * ao->neg_eap are set, and the peer sends a Configure-Request + * with two or more authenticate-protocol requests, then we will + * reject the second request. + * Whether we end up doing CHAP, UPAP, or EAP depends then on + * the ordering of the CIs in the peer's Configure-Request. + */ + +#if PAP_SUPPORT + if (cishort == PPP_PAP) { + /* we've already accepted CHAP or EAP */ + if (0 +#if CHAP_SUPPORT + || ho->neg_chap +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + || ho->neg_eap +#endif /* EAP_SUPPORT */ + || cilen != CILEN_SHORT) { + LCPDEBUG(("lcp_reqci: rcvd AUTHTYPE PAP, rejecting...")); + orc = CONFREJ; + break; + } + if (!ao->neg_upap) { /* we don't want to do PAP */ + orc = CONFNAK; /* NAK it and suggest CHAP or EAP */ + PUTCHAR(CI_AUTHTYPE, nakoutp); +#if EAP_SUPPORT + if (ao->neg_eap) { + PUTCHAR(CILEN_SHORT, nakoutp); + PUTSHORT(PPP_EAP, nakoutp); + } else { +#endif /* EAP_SUPPORT */ +#if CHAP_SUPPORT + PUTCHAR(CILEN_CHAP, nakoutp); + PUTSHORT(PPP_CHAP, nakoutp); + PUTCHAR(CHAP_DIGEST(ao->chap_mdtype), nakoutp); +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + } +#endif /* EAP_SUPPORT */ + break; + } + ho->neg_upap = 1; + break; + } +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + if (cishort == PPP_CHAP) { + /* we've already accepted PAP or EAP */ + if ( +#if PAP_SUPPORT + ho->neg_upap || +#endif /* PAP_SUPPORT */ +#if EAP_SUPPORT + ho->neg_eap || +#endif /* EAP_SUPPORT */ + cilen != CILEN_CHAP) { + LCPDEBUG(("lcp_reqci: rcvd AUTHTYPE CHAP, rejecting...")); + orc = CONFREJ; + break; + } + if (!ao->neg_chap) { /* we don't want to do CHAP */ + orc = CONFNAK; /* NAK it and suggest EAP or PAP */ + PUTCHAR(CI_AUTHTYPE, nakoutp); + PUTCHAR(CILEN_SHORT, nakoutp); +#if EAP_SUPPORT + if (ao->neg_eap) { + PUTSHORT(PPP_EAP, nakoutp); + } else +#endif /* EAP_SUPPORT */ +#if PAP_SUPPORT + if(1) { + PUTSHORT(PPP_PAP, nakoutp); + } + else +#endif /* PAP_SUPPORT */ + {} + break; + } + GETCHAR(cichar, p); /* get digest type */ + if (!(CHAP_CANDIGEST(ao->chap_mdtype, cichar))) { + /* + * We can't/won't do the requested type, + * suggest something else. + */ + orc = CONFNAK; + PUTCHAR(CI_AUTHTYPE, nakoutp); + PUTCHAR(CILEN_CHAP, nakoutp); + PUTSHORT(PPP_CHAP, nakoutp); + PUTCHAR(CHAP_DIGEST(ao->chap_mdtype), nakoutp); + break; + } + ho->chap_mdtype = CHAP_MDTYPE_D(cichar); /* save md type */ + ho->neg_chap = 1; + break; + } +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + if (cishort == PPP_EAP) { + /* we've already accepted CHAP or PAP */ + if ( +#if CHAP_SUPPORT + ho->neg_chap || +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + ho->neg_upap || +#endif /* PAP_SUPPORT */ + cilen != CILEN_SHORT) { + LCPDEBUG(("lcp_reqci: rcvd AUTHTYPE EAP, rejecting...")); + orc = CONFREJ; + break; + } + if (!ao->neg_eap) { /* we don't want to do EAP */ + orc = CONFNAK; /* NAK it and suggest CHAP or PAP */ + PUTCHAR(CI_AUTHTYPE, nakoutp); +#if CHAP_SUPPORT + if (ao->neg_chap) { + PUTCHAR(CILEN_CHAP, nakoutp); + PUTSHORT(PPP_CHAP, nakoutp); + PUTCHAR(CHAP_DIGEST(ao->chap_mdtype), nakoutp); + } else +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + if(1) { + PUTCHAR(CILEN_SHORT, nakoutp); + PUTSHORT(PPP_PAP, nakoutp); + } else +#endif /* PAP_SUPPORT */ + {} + break; + } + ho->neg_eap = 1; + break; + } +#endif /* EAP_SUPPORT */ + + /* + * We don't recognize the protocol they're asking for. + * Nak it with something we're willing to do. + * (At this point we know ao->neg_upap || ao->neg_chap || + * ao->neg_eap.) + */ + orc = CONFNAK; + PUTCHAR(CI_AUTHTYPE, nakoutp); + +#if EAP_SUPPORT + if (ao->neg_eap) { + PUTCHAR(CILEN_SHORT, nakoutp); + PUTSHORT(PPP_EAP, nakoutp); + } else +#endif /* EAP_SUPPORT */ +#if CHAP_SUPPORT + if (ao->neg_chap) { + PUTCHAR(CILEN_CHAP, nakoutp); + PUTSHORT(PPP_CHAP, nakoutp); + PUTCHAR(CHAP_DIGEST(ao->chap_mdtype), nakoutp); + } else +#endif /* CHAP_SUPPORT */ +#if PAP_SUPPORT + if(1) { + PUTCHAR(CILEN_SHORT, nakoutp); + PUTSHORT(PPP_PAP, nakoutp); + } else +#endif /* PAP_SUPPORT */ + {} + break; + +#if LQR_SUPPORT + case CI_QUALITY: + if (!ao->neg_lqr || + cilen != CILEN_LQR) { + orc = CONFREJ; + break; + } + + GETSHORT(cishort, p); + GETLONG(cilong, p); + + /* + * Check the protocol and the reporting period. + * XXX When should we Nak this, and what with? + */ + if (cishort != PPP_LQR) { + orc = CONFNAK; + PUTCHAR(CI_QUALITY, nakoutp); + PUTCHAR(CILEN_LQR, nakoutp); + PUTSHORT(PPP_LQR, nakoutp); + PUTLONG(ao->lqr_period, nakoutp); + break; + } + break; +#endif /* LQR_SUPPORT */ + + case CI_MAGICNUMBER: + if (!(ao->neg_magicnumber || go->neg_magicnumber) || + cilen != CILEN_LONG) { + orc = CONFREJ; + break; + } + GETLONG(cilong, p); + + /* + * He must have a different magic number. + */ + if (go->neg_magicnumber && + cilong == go->magicnumber) { + cilong = magic(); /* Don't put magic() inside macro! */ + orc = CONFNAK; + PUTCHAR(CI_MAGICNUMBER, nakoutp); + PUTCHAR(CILEN_LONG, nakoutp); + PUTLONG(cilong, nakoutp); + break; + } + ho->neg_magicnumber = 1; + ho->magicnumber = cilong; + break; + + + case CI_PCOMPRESSION: + if (!ao->neg_pcompression || + cilen != CILEN_VOID) { + orc = CONFREJ; + break; + } + ho->neg_pcompression = 1; + break; + + case CI_ACCOMPRESSION: + if (!ao->neg_accompression || + cilen != CILEN_VOID) { + orc = CONFREJ; + break; + } + ho->neg_accompression = 1; + break; + +#ifdef HAVE_MULTILINK + case CI_MRRU: + if (!ao->neg_mrru + || !multilink + || cilen != CILEN_SHORT) { + orc = CONFREJ; + break; + } + + GETSHORT(cishort, p); + /* possibly should insist on a minimum/maximum MRRU here */ + ho->neg_mrru = 1; + ho->mrru = cishort; + break; +#endif /* HAVE_MULTILINK */ + + case CI_SSNHF: + if (!ao->neg_ssnhf +#ifdef HAVE_MULTILINK + || !multilink +#endif /* HAVE_MULTILINK */ + || cilen != CILEN_VOID) { + orc = CONFREJ; + break; + } + ho->neg_ssnhf = 1; + break; + + case CI_EPDISC: + if (!ao->neg_endpoint || + cilen < CILEN_CHAR || + cilen > CILEN_CHAR + MAX_ENDP_LEN) { + orc = CONFREJ; + break; + } + GETCHAR(cichar, p); + cilen -= CILEN_CHAR; + ho->neg_endpoint = 1; + ho->endpoint.class_ = cichar; + ho->endpoint.length = cilen; + MEMCPY(ho->endpoint.value, p, cilen); + INCPTR(cilen, p); + break; + + default: + LCPDEBUG(("lcp_reqci: rcvd unknown option %d", citype)); + orc = CONFREJ; + break; + } + +endswitch: + if (orc == CONFACK && /* Good CI */ + rc != CONFACK) /* but prior CI wasn't? */ + continue; /* Don't send this one */ + + if (orc == CONFNAK) { /* Nak this CI? */ + if (reject_if_disagree /* Getting fed up with sending NAKs? */ + && citype != CI_MAGICNUMBER) { + orc = CONFREJ; /* Get tough if so */ + } else { + if (rc == CONFREJ) /* Rejecting prior CI? */ + continue; /* Don't send this one */ + rc = CONFNAK; + } + } + if (orc == CONFREJ) { /* Reject this CI */ + rc = CONFREJ; + if (cip != rejp) /* Need to move rejected CI? */ + MEMCPY(rejp, cip, cilen); /* Move it */ + INCPTR(cilen, rejp); /* Update output pointer */ + } + } + + /* + * If we wanted to send additional NAKs (for unsent CIs), the + * code would go here. The extra NAKs would go at *nakoutp. + * At present there are no cases where we want to ask the + * peer to negotiate an option. + */ + + switch (rc) { + case CONFACK: + *lenp = next - inp; + break; + case CONFNAK: + /* + * Copy the Nak'd options from the nak buffer to the caller's buffer. + */ + *lenp = nakoutp - (u_char*)nakp->payload; + MEMCPY(inp, nakp->payload, *lenp); + break; + case CONFREJ: + *lenp = rejp - inp; + break; + default: + break; + } + + pbuf_free(nakp); + LCPDEBUG(("lcp_reqci: returning CONF%s.", CODENAME(rc))); + return (rc); /* Return final code */ +} + + +/* + * lcp_up - LCP has come UP. + */ +static void lcp_up(fsm *f) { + ppp_pcb *pcb = f->pcb; + lcp_options *wo = &pcb->lcp_wantoptions; + lcp_options *ho = &pcb->lcp_hisoptions; + lcp_options *go = &pcb->lcp_gotoptions; + lcp_options *ao = &pcb->lcp_allowoptions; + int mtu, mru; + + if (!go->neg_magicnumber) + go->magicnumber = 0; + if (!ho->neg_magicnumber) + ho->magicnumber = 0; + + /* + * Set our MTU to the smaller of the MTU we wanted and + * the MRU our peer wanted. If we negotiated an MRU, + * set our MRU to the larger of value we wanted and + * the value we got in the negotiation. + * Note on the MTU: the link MTU can be the MRU the peer wanted, + * the interface MTU is set to the lowest of that, the + * MTU we want to use, and our link MRU. + */ + mtu = ho->neg_mru? ho->mru: PPP_MRU; + mru = go->neg_mru? LWIP_MAX(wo->mru, go->mru): PPP_MRU; +#ifdef HAVE_MULTILINK + if (!(multilink && go->neg_mrru && ho->neg_mrru)) +#endif /* HAVE_MULTILINK */ + netif_set_mtu(pcb, LWIP_MIN(LWIP_MIN(mtu, mru), ao->mru)); + ppp_send_config(pcb, mtu, + (ho->neg_asyncmap? ho->asyncmap: 0xffffffff), + ho->neg_pcompression, ho->neg_accompression); + ppp_recv_config(pcb, mru, + (pcb->settings.lax_recv? 0: go->neg_asyncmap? go->asyncmap: 0xffffffff), + go->neg_pcompression, go->neg_accompression); + + if (ho->neg_mru) + pcb->peer_mru = ho->mru; + + lcp_echo_lowerup(f->pcb); /* Enable echo messages */ + + link_established(pcb); +} + + +/* + * lcp_down - LCP has gone DOWN. + * + * Alert other protocols. + */ +static void lcp_down(fsm *f) { + ppp_pcb *pcb = f->pcb; + lcp_options *go = &pcb->lcp_gotoptions; + + lcp_echo_lowerdown(f->pcb); + + link_down(pcb); + + ppp_send_config(pcb, PPP_MRU, 0xffffffff, 0, 0); + ppp_recv_config(pcb, PPP_MRU, + (go->neg_asyncmap? go->asyncmap: 0xffffffff), + go->neg_pcompression, go->neg_accompression); + pcb->peer_mru = PPP_MRU; +} + + +/* + * lcp_starting - LCP needs the lower layer up. + */ +static void lcp_starting(fsm *f) { + ppp_pcb *pcb = f->pcb; + link_required(pcb); +} + + +/* + * lcp_finished - LCP has finished with the lower layer. + */ +static void lcp_finished(fsm *f) { + ppp_pcb *pcb = f->pcb; + link_terminated(pcb); +} + + +#if PRINTPKT_SUPPORT +/* + * lcp_printpkt - print the contents of an LCP packet. + */ +static const char* const lcp_codenames[] = { + "ConfReq", "ConfAck", "ConfNak", "ConfRej", + "TermReq", "TermAck", "CodeRej", "ProtRej", + "EchoReq", "EchoRep", "DiscReq", "Ident", + "TimeRem" +}; + +static int lcp_printpkt(const u_char *p, int plen, + void (*printer) (void *, const char *, ...), void *arg) { + int code, id, len, olen, i; + const u_char *pstart, *optend; + u_short cishort; + u32_t cilong; + + if (plen < HEADERLEN) + return 0; + pstart = p; + GETCHAR(code, p); + GETCHAR(id, p); + GETSHORT(len, p); + if (len < HEADERLEN || len > plen) + return 0; + + if (code >= 1 && code <= (int)LWIP_ARRAYSIZE(lcp_codenames)) + printer(arg, " %s", lcp_codenames[code-1]); + else + printer(arg, " code=0x%x", code); + printer(arg, " id=0x%x", id); + len -= HEADERLEN; + switch (code) { + case CONFREQ: + case CONFACK: + case CONFNAK: + case CONFREJ: + /* print option list */ + while (len >= 2) { + GETCHAR(code, p); + GETCHAR(olen, p); + p -= 2; + if (olen < 2 || olen > len) { + break; + } + printer(arg, " <"); + len -= olen; + optend = p + olen; + switch (code) { + case CI_MRU: + if (olen == CILEN_SHORT) { + p += 2; + GETSHORT(cishort, p); + printer(arg, "mru %d", cishort); + } + break; + case CI_ASYNCMAP: + if (olen == CILEN_LONG) { + p += 2; + GETLONG(cilong, p); + printer(arg, "asyncmap 0x%x", cilong); + } + break; + case CI_AUTHTYPE: + if (olen >= CILEN_SHORT) { + p += 2; + printer(arg, "auth "); + GETSHORT(cishort, p); + switch (cishort) { +#if PAP_SUPPORT + case PPP_PAP: + printer(arg, "pap"); + break; +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + case PPP_CHAP: + printer(arg, "chap"); + if (p < optend) { + switch (*p) { + case CHAP_MD5: + printer(arg, " MD5"); + ++p; + break; +#if MSCHAP_SUPPORT + case CHAP_MICROSOFT: + printer(arg, " MS"); + ++p; + break; + + case CHAP_MICROSOFT_V2: + printer(arg, " MS-v2"); + ++p; + break; +#endif /* MSCHAP_SUPPORT */ + default: + break; + } + } + break; +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + case PPP_EAP: + printer(arg, "eap"); + break; +#endif /* EAP_SUPPORT */ + default: + printer(arg, "0x%x", cishort); + } + } + break; +#if LQR_SUPPORT + case CI_QUALITY: + if (olen >= CILEN_SHORT) { + p += 2; + printer(arg, "quality "); + GETSHORT(cishort, p); + switch (cishort) { + case PPP_LQR: + printer(arg, "lqr"); + break; + default: + printer(arg, "0x%x", cishort); + } + } + break; +#endif /* LQR_SUPPORT */ + case CI_CALLBACK: + if (olen >= CILEN_CHAR) { + p += 2; + printer(arg, "callback "); + GETCHAR(cishort, p); + switch (cishort) { + case CBCP_OPT: + printer(arg, "CBCP"); + break; + default: + printer(arg, "0x%x", cishort); + } + } + break; + case CI_MAGICNUMBER: + if (olen == CILEN_LONG) { + p += 2; + GETLONG(cilong, p); + printer(arg, "magic 0x%x", cilong); + } + break; + case CI_PCOMPRESSION: + if (olen == CILEN_VOID) { + p += 2; + printer(arg, "pcomp"); + } + break; + case CI_ACCOMPRESSION: + if (olen == CILEN_VOID) { + p += 2; + printer(arg, "accomp"); + } + break; + case CI_MRRU: + if (olen == CILEN_SHORT) { + p += 2; + GETSHORT(cishort, p); + printer(arg, "mrru %d", cishort); + } + break; + case CI_SSNHF: + if (olen == CILEN_VOID) { + p += 2; + printer(arg, "ssnhf"); + } + break; + case CI_EPDISC: +#ifdef HAVE_MULTILINK + if (olen >= CILEN_CHAR) { + struct epdisc epd; + p += 2; + GETCHAR(epd.class, p); + epd.length = olen - CILEN_CHAR; + if (epd.length > MAX_ENDP_LEN) + epd.length = MAX_ENDP_LEN; + if (epd.length > 0) { + MEMCPY(epd.value, p, epd.length); + p += epd.length; + } + printer(arg, "endpoint [%s]", epdisc_to_str(&epd)); + } +#else + printer(arg, "endpoint"); +#endif + break; + default: + break; + } + while (p < optend) { + GETCHAR(code, p); + printer(arg, " %.2x", code); + } + printer(arg, ">"); + } + break; + + case TERMACK: + case TERMREQ: + if (len > 0 && *p >= ' ' && *p < 0x7f) { + printer(arg, " "); + ppp_print_string(p, len, printer, arg); + p += len; + len = 0; + } + break; + + case ECHOREQ: + case ECHOREP: + case DISCREQ: + if (len >= 4) { + GETLONG(cilong, p); + printer(arg, " magic=0x%x", cilong); + len -= 4; + } + break; + + case IDENTIF: + case TIMEREM: + if (len >= 4) { + GETLONG(cilong, p); + printer(arg, " magic=0x%x", cilong); + len -= 4; + } + if (code == TIMEREM) { + if (len < 4) + break; + GETLONG(cilong, p); + printer(arg, " seconds=%u", cilong); + len -= 4; + } + if (len > 0) { + printer(arg, " "); + ppp_print_string(p, len, printer, arg); + p += len; + len = 0; + } + break; + default: + break; + } + + /* print the rest of the bytes in the packet */ + for (i = 0; i < len && i < 32; ++i) { + GETCHAR(code, p); + printer(arg, " %.2x", code); + } + if (i < len) { + printer(arg, " ..."); + p += len - i; + } + + return p - pstart; +} +#endif /* PRINTPKT_SUPPORT */ + +/* + * Time to shut down the link because there is nothing out there. + */ + +static void LcpLinkFailure(fsm *f) { + ppp_pcb *pcb = f->pcb; + if (f->state == PPP_FSM_OPENED) { + ppp_info(("No response to %d echo-requests", pcb->lcp_echos_pending)); + ppp_notice(("Serial link appears to be disconnected.")); + pcb->err_code = PPPERR_PEERDEAD; + lcp_close(pcb, "Peer not responding"); + } +} + +/* + * Timer expired for the LCP echo requests from this process. + */ + +static void LcpEchoCheck(fsm *f) { + ppp_pcb *pcb = f->pcb; + + LcpSendEchoRequest (f); + if (f->state != PPP_FSM_OPENED) + return; + + /* + * Start the timer for the next interval. + */ + if (pcb->lcp_echo_timer_running) + ppp_warn(("assertion lcp_echo_timer_running==0 failed")); + TIMEOUT (LcpEchoTimeout, f, pcb->settings.lcp_echo_interval); + pcb->lcp_echo_timer_running = 1; +} + +/* + * LcpEchoTimeout - Timer expired on the LCP echo + */ + +static void LcpEchoTimeout(void *arg) { + fsm *f = (fsm*)arg; + ppp_pcb *pcb = f->pcb; + if (pcb->lcp_echo_timer_running != 0) { + pcb->lcp_echo_timer_running = 0; + LcpEchoCheck ((fsm *) arg); + } +} + +/* + * LcpEchoReply - LCP has received a reply to the echo + */ + +static void lcp_received_echo_reply(fsm *f, int id, u_char *inp, int len) { + ppp_pcb *pcb = f->pcb; + lcp_options *go = &pcb->lcp_gotoptions; + u32_t magic_val; + LWIP_UNUSED_ARG(id); + + /* Check the magic number - don't count replies from ourselves. */ + if (len < 4) { + ppp_dbglog(("lcp: received short Echo-Reply, length %d", len)); + return; + } + GETLONG(magic_val, inp); + if (go->neg_magicnumber + && magic_val == go->magicnumber) { + ppp_warn(("appear to have received our own echo-reply!")); + return; + } + + /* Reset the number of outstanding echo frames */ + pcb->lcp_echos_pending = 0; +} + +/* + * LcpSendEchoRequest - Send an echo request frame to the peer + */ + +static void LcpSendEchoRequest(fsm *f) { + ppp_pcb *pcb = f->pcb; + lcp_options *go = &pcb->lcp_gotoptions; + u32_t lcp_magic; + u_char pkt[4], *pktp; + + /* + * Detect the failure of the peer at this point. + */ + if (pcb->settings.lcp_echo_fails != 0) { + if (pcb->lcp_echos_pending >= pcb->settings.lcp_echo_fails) { + LcpLinkFailure(f); + pcb->lcp_echos_pending = 0; + } + } + +#if PPP_LCP_ADAPTIVE + /* + * If adaptive echos have been enabled, only send the echo request if + * no traffic was received since the last one. + */ + if (pcb->settings.lcp_echo_adaptive) { + static unsigned int last_pkts_in = 0; + +#if PPP_STATS_SUPPORT + update_link_stats(f->unit); + link_stats_valid = 0; +#endif /* PPP_STATS_SUPPORT */ + + if (link_stats.pkts_in != last_pkts_in) { + last_pkts_in = link_stats.pkts_in; + return; + } + } +#endif + + /* + * Make and send the echo request frame. + */ + if (f->state == PPP_FSM_OPENED) { + lcp_magic = go->magicnumber; + pktp = pkt; + PUTLONG(lcp_magic, pktp); + fsm_sdata(f, ECHOREQ, pcb->lcp_echo_number++, pkt, pktp - pkt); + ++pcb->lcp_echos_pending; + } +} + +/* + * lcp_echo_lowerup - Start the timer for the LCP frame + */ + +static void lcp_echo_lowerup(ppp_pcb *pcb) { + fsm *f = &pcb->lcp_fsm; + + /* Clear the parameters for generating echo frames */ + pcb->lcp_echos_pending = 0; + pcb->lcp_echo_number = 0; + pcb->lcp_echo_timer_running = 0; + + /* If a timeout interval is specified then start the timer */ + if (pcb->settings.lcp_echo_interval != 0) + LcpEchoCheck (f); +} + +/* + * lcp_echo_lowerdown - Stop the timer for the LCP frame + */ + +static void lcp_echo_lowerdown(ppp_pcb *pcb) { + fsm *f = &pcb->lcp_fsm; + + if (pcb->lcp_echo_timer_running != 0) { + UNTIMEOUT (LcpEchoTimeout, f); + pcb->lcp_echo_timer_running = 0; + } +} + +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/lwip_ecp.c b/middleware/lwip/src/netif/ppp/lwip_ecp.c new file mode 100644 index 0000000..4d84f60 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/lwip_ecp.c @@ -0,0 +1,191 @@ +/* + * ecp.c - PPP Encryption Control Protocol. + * + * Copyright (c) 2002 Google, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Derived from ccp.c, which is: + * + * Copyright (c) 1994-2002 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && ECP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/fsm.h" +#include "netif/ppp/ecp.h" + +#if PPP_OPTIONS +static option_t ecp_option_list[] = { + { "noecp", o_bool, &ecp_protent.enabled_flag, + "Disable ECP negotiation" }, + { "-ecp", o_bool, &ecp_protent.enabled_flag, + "Disable ECP negotiation", OPT_ALIAS }, + + { NULL } +}; +#endif /* PPP_OPTIONS */ + +/* + * Protocol entry points from main code. + */ +static void ecp_init (int unit); +/* +static void ecp_open (int unit); +static void ecp_close (int unit, char *); +static void ecp_lowerup (int unit); +static void ecp_lowerdown (int); +static void ecp_input (int unit, u_char *pkt, int len); +static void ecp_protrej (int unit); +*/ +#if PRINTPKT_SUPPORT +static int ecp_printpkt (const u_char *pkt, int len, + void (*printer) (void *, char *, ...), + void *arg); +#endif /* PRINTPKT_SUPPORT */ +/* +static void ecp_datainput (int unit, u_char *pkt, int len); +*/ + +const struct protent ecp_protent = { + PPP_ECP, + ecp_init, + NULL, /* ecp_input, */ + NULL, /* ecp_protrej, */ + NULL, /* ecp_lowerup, */ + NULL, /* ecp_lowerdown, */ + NULL, /* ecp_open, */ + NULL, /* ecp_close, */ +#if PRINTPKT_SUPPORT + ecp_printpkt, +#endif /* PRINTPKT_SUPPORT */ +#if PPP_DATAINPUT + NULL, /* ecp_datainput, */ +#endif /* PPP_DATAINPUT */ +#if PRINTPKT_SUPPORT + "ECP", + "Encrypted", +#endif /* PRINTPKT_SUPPORT */ +#if PPP_OPTIONS + ecp_option_list, + NULL, +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT + NULL, + NULL +#endif /* DEMAND_SUPPORT */ +}; + +fsm ecp_fsm[NUM_PPP]; +ecp_options ecp_wantoptions[NUM_PPP]; /* what to request the peer to use */ +ecp_options ecp_gotoptions[NUM_PPP]; /* what the peer agreed to do */ +ecp_options ecp_allowoptions[NUM_PPP]; /* what we'll agree to do */ +ecp_options ecp_hisoptions[NUM_PPP]; /* what we agreed to do */ + +static const fsm_callbacks ecp_callbacks = { + NULL, /* ecp_resetci, */ + NULL, /* ecp_cilen, */ + NULL, /* ecp_addci, */ + NULL, /* ecp_ackci, */ + NULL, /* ecp_nakci, */ + NULL, /* ecp_rejci, */ + NULL, /* ecp_reqci, */ + NULL, /* ecp_up, */ + NULL, /* ecp_down, */ + NULL, + NULL, + NULL, + NULL, + NULL, /* ecp_extcode, */ + "ECP" +}; + +/* + * ecp_init - initialize ECP. + */ +static void +ecp_init(unit) + int unit; +{ + fsm *f = &ecp_fsm[unit]; + + f->unit = unit; + f->protocol = PPP_ECP; + f->callbacks = &ecp_callbacks; + fsm_init(f); + +#if 0 /* Not necessary, everything is cleared in ppp_new() */ + memset(&ecp_wantoptions[unit], 0, sizeof(ecp_options)); + memset(&ecp_gotoptions[unit], 0, sizeof(ecp_options)); + memset(&ecp_allowoptions[unit], 0, sizeof(ecp_options)); + memset(&ecp_hisoptions[unit], 0, sizeof(ecp_options)); +#endif /* 0 */ + +} + + +#if PRINTPKT_SUPPORT +static int +ecp_printpkt(p, plen, printer, arg) + const u_char *p; + int plen; + void (*printer) (void *, char *, ...); + void *arg; +{ + return 0; +} +#endif /* PRINTPKT_SUPPORT */ + +#endif /* PPP_SUPPORT && ECP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/magic.c b/middleware/lwip/src/netif/ppp/magic.c new file mode 100644 index 0000000..21911af --- /dev/null +++ b/middleware/lwip/src/netif/ppp/magic.c @@ -0,0 +1,294 @@ +/* + * magic.c - PPP Magic Number routines. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +/***************************************************************************** +* randm.c - Random number generator program file. +* +* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. +* Copyright (c) 1998 by Global Election Systems Inc. +* +* The authors hereby grant permission to use, copy, modify, distribute, +* and license this software and its documentation for any purpose, provided +* that existing copyright notices are retained in all copies and that this +* notice and the following disclaimer are included verbatim in any +* distributions. No written agreement, license, or royalty fee is required +* for any of the authorized uses. +* +* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR +* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +* +****************************************************************************** +* REVISION HISTORY +* +* 03-01-01 Marc Boucher +* Ported to lwIP. +* 98-06-03 Guy Lancaster , Global Election Systems Inc. +* Extracted from avos. +*****************************************************************************/ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include "netif/ppp/ppp_impl.h" +#include "netif/ppp/magic.h" + +#if PPP_MD5_RANDM /* Using MD5 for better randomness if enabled */ + +#include "netif/ppp/pppcrypt.h" + +#define MD5_HASH_SIZE 16 +static char magic_randpool[MD5_HASH_SIZE]; /* Pool of randomness. */ +static long magic_randcount; /* Pseudo-random incrementer */ +static u32_t magic_randomseed; /* Seed used for random number generation. */ + +/* + * Churn the randomness pool on a random event. Call this early and often + * on random and semi-random system events to build randomness in time for + * usage. For randomly timed events, pass a null pointer and a zero length + * and this will use the system timer and other sources to add randomness. + * If new random data is available, pass a pointer to that and it will be + * included. + * + * Ref: Applied Cryptography 2nd Ed. by Bruce Schneier p. 427 + */ +static void magic_churnrand(char *rand_data, u32_t rand_len) { + lwip_md5_context md5_ctx; + + /* LWIP_DEBUGF(LOG_INFO, ("magic_churnrand: %u@%P\n", rand_len, rand_data)); */ + lwip_md5_init(&md5_ctx); + lwip_md5_starts(&md5_ctx); + lwip_md5_update(&md5_ctx, (u_char *)magic_randpool, sizeof(magic_randpool)); + if (rand_data) { + lwip_md5_update(&md5_ctx, (u_char *)rand_data, rand_len); + } else { + struct { + /* INCLUDE fields for any system sources of randomness */ + u32_t jiffies; +#ifdef LWIP_RAND + u32_t rand; +#endif /* LWIP_RAND */ + } sys_data; + magic_randomseed += sys_jiffies(); + sys_data.jiffies = magic_randomseed; +#ifdef LWIP_RAND + sys_data.rand = LWIP_RAND(); +#endif /* LWIP_RAND */ + /* Load sys_data fields here. */ + lwip_md5_update(&md5_ctx, (u_char *)&sys_data, sizeof(sys_data)); + } + lwip_md5_finish(&md5_ctx, (u_char *)magic_randpool); + lwip_md5_free(&md5_ctx); +/* LWIP_DEBUGF(LOG_INFO, ("magic_churnrand: -> 0\n")); */ +} + +/* + * Initialize the random number generator. + */ +void magic_init(void) { + magic_churnrand(NULL, 0); +} + +/* + * Randomize our random seed value. + */ +void magic_randomize(void) { + magic_churnrand(NULL, 0); +} + +/* + * magic_random_bytes - Fill a buffer with random bytes. + * + * Use the random pool to generate random data. This degrades to pseudo + * random when used faster than randomness is supplied using magic_churnrand(). + * Note: It's important that there be sufficient randomness in magic_randpool + * before this is called for otherwise the range of the result may be + * narrow enough to make a search feasible. + * + * Ref: Applied Cryptography 2nd Ed. by Bruce Schneier p. 427 + * + * XXX Why does he not just call magic_churnrand() for each block? Probably + * so that you don't ever publish the seed which could possibly help + * predict future values. + * XXX Why don't we preserve md5 between blocks and just update it with + * magic_randcount each time? Probably there is a weakness but I wish that + * it was documented. + */ +void magic_random_bytes(unsigned char *buf, u32_t buf_len) { + lwip_md5_context md5_ctx; + u_char tmp[MD5_HASH_SIZE]; + u32_t n; + + while (buf_len > 0) { + lwip_md5_init(&md5_ctx); + lwip_md5_starts(&md5_ctx); + lwip_md5_update(&md5_ctx, (u_char *)magic_randpool, sizeof(magic_randpool)); + lwip_md5_update(&md5_ctx, (u_char *)&magic_randcount, sizeof(magic_randcount)); + lwip_md5_finish(&md5_ctx, tmp); + lwip_md5_free(&md5_ctx); + magic_randcount++; + n = LWIP_MIN(buf_len, MD5_HASH_SIZE); + MEMCPY(buf, tmp, n); + buf += n; + buf_len -= n; + } +} + +/* + * Return a new random number. + */ +u32_t magic(void) { + u32_t new_rand; + + magic_random_bytes((unsigned char *)&new_rand, sizeof(new_rand)); + + return new_rand; +} + +#else /* PPP_MD5_RANDM */ + +/*****************************/ +/*** LOCAL DATA STRUCTURES ***/ +/*****************************/ +#ifndef LWIP_RAND +static int magic_randomized; /* Set when truly randomized. */ +#endif /* LWIP_RAND */ +static u32_t magic_randomseed; /* Seed used for random number generation. */ + + +/***********************************/ +/*** PUBLIC FUNCTION DEFINITIONS ***/ +/***********************************/ + +/* + * Initialize the random number generator. + * + * Here we attempt to compute a random number seed but even if + * it isn't random, we'll randomize it later. + * + * The current method uses the fields from the real time clock, + * the idle process counter, the millisecond counter, and the + * hardware timer tick counter. When this is invoked + * in startup(), then the idle counter and timer values may + * repeat after each boot and the real time clock may not be + * operational. Thus we call it again on the first random + * event. + */ +void magic_init(void) { + magic_randomseed += sys_jiffies(); +#ifndef LWIP_RAND + /* Initialize the Borland random number generator. */ + srand((unsigned)magic_randomseed); +#endif /* LWIP_RAND */ +} + +/* + * magic_init - Initialize the magic number generator. + * + * Randomize our random seed value. Here we use the fact that + * this function is called at *truly random* times by the polling + * and network functions. Here we only get 16 bits of new random + * value but we use the previous value to randomize the other 16 + * bits. + */ +void magic_randomize(void) { +#ifndef LWIP_RAND + if (!magic_randomized) { + magic_randomized = !0; + magic_init(); + /* The initialization function also updates the seed. */ + } else { +#endif /* LWIP_RAND */ + magic_randomseed += sys_jiffies(); +#ifndef LWIP_RAND + } +#endif /* LWIP_RAND */ +} + +/* + * Return a new random number. + * + * Here we use the Borland rand() function to supply a pseudo random + * number which we make truly random by combining it with our own + * seed which is randomized by truly random events. + * Thus the numbers will be truly random unless there have been no + * operator or network events in which case it will be pseudo random + * seeded by the real time clock. + */ +u32_t magic(void) { +#ifdef LWIP_RAND + return LWIP_RAND() + magic_randomseed; +#else /* LWIP_RAND */ + return ((u32_t)rand() << 16) + (u32_t)rand() + magic_randomseed; +#endif /* LWIP_RAND */ +} + +/* + * magic_random_bytes - Fill a buffer with random bytes. + */ +void magic_random_bytes(unsigned char *buf, u32_t buf_len) { + u32_t new_rand, n; + + while (buf_len > 0) { + new_rand = magic(); + n = LWIP_MIN(buf_len, sizeof(new_rand)); + MEMCPY(buf, &new_rand, n); + buf += n; + buf_len -= n; + } +} +#endif /* PPP_MD5_RANDM */ + +/* + * Return a new random number between 0 and (2^pow)-1 included. + */ +u32_t magic_pow(u8_t pow) { + return magic() & ~(~0UL<. + * Copyright (c) 2002,2003,2004 Google, Inc. + * All rights reserved. + * + * License: + * Permission to use, copy, modify, and distribute this software and its + * documentation is hereby granted, provided that the above copyright + * notice appears in all copies. This software is provided without any + * warranty, express or implied. + * + * Changelog: + * 08/12/05 - Matt Domsch + * Only need extra skb padding on transmit, not receive. + * 06/18/04 - Matt Domsch , Oleg Makarenko + * Use Linux kernel 2.6 arc4 and sha1 routines rather than + * providing our own. + * 2/15/04 - TS: added #include and testing for Kernel + * version before using + * MOD_DEC_USAGE_COUNT/MOD_INC_USAGE_COUNT which are + * deprecated in 2.6 + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && MPPE_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include + +#include "lwip/err.h" + +#include "netif/ppp/ppp_impl.h" +#include "netif/ppp/ccp.h" +#include "netif/ppp/mppe.h" +#include "netif/ppp/pppdebug.h" +#include "netif/ppp/pppcrypt.h" + +#define SHA1_SIGNATURE_SIZE 20 + +/* ppp_mppe_state.bits definitions */ +#define MPPE_BIT_A 0x80 /* Encryption table were (re)inititalized */ +#define MPPE_BIT_B 0x40 /* MPPC only (not implemented) */ +#define MPPE_BIT_C 0x20 /* MPPC only (not implemented) */ +#define MPPE_BIT_D 0x10 /* This is an encrypted frame */ + +#define MPPE_BIT_FLUSHED MPPE_BIT_A +#define MPPE_BIT_ENCRYPTED MPPE_BIT_D + +#define MPPE_BITS(p) ((p)[0] & 0xf0) +#define MPPE_CCOUNT(p) ((((p)[0] & 0x0f) << 8) + (p)[1]) +#define MPPE_CCOUNT_SPACE 0x1000 /* The size of the ccount space */ + +#define MPPE_OVHD 2 /* MPPE overhead/packet */ +#define SANITY_MAX 1600 /* Max bogon factor we will tolerate */ + +/* + * Perform the MPPE rekey algorithm, from RFC 3078, sec. 7.3. + * Well, not what's written there, but rather what they meant. + */ +static void mppe_rekey(ppp_mppe_state * state, int initial_key) +{ + lwip_sha1_context sha1_ctx; + u8_t sha1_digest[SHA1_SIGNATURE_SIZE]; + + /* + * Key Derivation, from RFC 3078, RFC 3079. + * Equivalent to Get_Key() for MS-CHAP as described in RFC 3079. + */ + lwip_sha1_init(&sha1_ctx); + lwip_sha1_starts(&sha1_ctx); + lwip_sha1_update(&sha1_ctx, state->master_key, state->keylen); + lwip_sha1_update(&sha1_ctx, mppe_sha1_pad1, SHA1_PAD_SIZE); + lwip_sha1_update(&sha1_ctx, state->session_key, state->keylen); + lwip_sha1_update(&sha1_ctx, mppe_sha1_pad2, SHA1_PAD_SIZE); + lwip_sha1_finish(&sha1_ctx, sha1_digest); + lwip_sha1_free(&sha1_ctx); + MEMCPY(state->session_key, sha1_digest, state->keylen); + + if (!initial_key) { + lwip_arc4_init(&state->arc4); + lwip_arc4_setup(&state->arc4, sha1_digest, state->keylen); + lwip_arc4_crypt(&state->arc4, state->session_key, state->keylen); + lwip_arc4_free(&state->arc4); + } + if (state->keylen == 8) { + /* See RFC 3078 */ + state->session_key[0] = 0xd1; + state->session_key[1] = 0x26; + state->session_key[2] = 0x9e; + } + lwip_arc4_init(&state->arc4); + lwip_arc4_setup(&state->arc4, state->session_key, state->keylen); +} + +/* + * Set key, used by MSCHAP before mppe_init() is actually called by CCP so we + * don't have to keep multiple copies of keys. + */ +void mppe_set_key(ppp_pcb *pcb, ppp_mppe_state *state, u8_t *key) { + LWIP_UNUSED_ARG(pcb); + MEMCPY(state->master_key, key, MPPE_MAX_KEY_LEN); +} + +/* + * Initialize (de)compressor state. + */ +void +mppe_init(ppp_pcb *pcb, ppp_mppe_state *state, u8_t options) +{ +#if PPP_DEBUG + const u8_t *debugstr = (const u8_t*)"mppe_comp_init"; + if (&pcb->mppe_decomp == state) { + debugstr = (const u8_t*)"mppe_decomp_init"; + } +#endif /* PPP_DEBUG */ + + /* Save keys. */ + MEMCPY(state->session_key, state->master_key, sizeof(state->master_key)); + + if (options & MPPE_OPT_128) + state->keylen = 16; + else if (options & MPPE_OPT_40) + state->keylen = 8; + else { + PPPDEBUG(LOG_DEBUG, ("%s[%d]: unknown key length\n", debugstr, + pcb->netif->num)); + lcp_close(pcb, "MPPE required but peer negotiation failed"); + return; + } + if (options & MPPE_OPT_STATEFUL) + state->stateful = 1; + + /* Generate the initial session key. */ + mppe_rekey(state, 1); + +#if PPP_DEBUG + { + int i; + char mkey[sizeof(state->master_key) * 2 + 1]; + char skey[sizeof(state->session_key) * 2 + 1]; + + PPPDEBUG(LOG_DEBUG, ("%s[%d]: initialized with %d-bit %s mode\n", + debugstr, pcb->netif->num, (state->keylen == 16) ? 128 : 40, + (state->stateful) ? "stateful" : "stateless")); + + for (i = 0; i < (int)sizeof(state->master_key); i++) + sprintf(mkey + i * 2, "%02x", state->master_key[i]); + for (i = 0; i < (int)sizeof(state->session_key); i++) + sprintf(skey + i * 2, "%02x", state->session_key[i]); + PPPDEBUG(LOG_DEBUG, + ("%s[%d]: keys: master: %s initial session: %s\n", + debugstr, pcb->netif->num, mkey, skey)); + } +#endif /* PPP_DEBUG */ + + /* + * Initialize the coherency count. The initial value is not specified + * in RFC 3078, but we can make a reasonable assumption that it will + * start at 0. Setting it to the max here makes the comp/decomp code + * do the right thing (determined through experiment). + */ + state->ccount = MPPE_CCOUNT_SPACE - 1; + + /* + * Note that even though we have initialized the key table, we don't + * set the FLUSHED bit. This is contrary to RFC 3078, sec. 3.1. + */ + state->bits = MPPE_BIT_ENCRYPTED; +} + +/* + * We received a CCP Reset-Request (actually, we are sending a Reset-Ack), + * tell the compressor to rekey. Note that we MUST NOT rekey for + * every CCP Reset-Request; we only rekey on the next xmit packet. + * We might get multiple CCP Reset-Requests if our CCP Reset-Ack is lost. + * So, rekeying for every CCP Reset-Request is broken as the peer will not + * know how many times we've rekeyed. (If we rekey and THEN get another + * CCP Reset-Request, we must rekey again.) + */ +void mppe_comp_reset(ppp_pcb *pcb, ppp_mppe_state *state) +{ + LWIP_UNUSED_ARG(pcb); + state->bits |= MPPE_BIT_FLUSHED; +} + +/* + * Compress (encrypt) a packet. + * It's strange to call this a compressor, since the output is always + * MPPE_OVHD + 2 bytes larger than the input. + */ +err_t +mppe_compress(ppp_pcb *pcb, ppp_mppe_state *state, struct pbuf **pb, u16_t protocol) +{ + struct pbuf *n, *np; + u8_t *pl; + err_t err; + + LWIP_UNUSED_ARG(pcb); + + /* TCP stack requires that we don't change the packet payload, therefore we copy + * the whole packet before encryption. + */ + np = pbuf_alloc(PBUF_RAW, MPPE_OVHD + sizeof(protocol) + (*pb)->tot_len, PBUF_RAM); + if (!np) { + return ERR_MEM; + } + + /* Hide MPPE header + protocol */ + pbuf_remove_header(np, MPPE_OVHD + sizeof(protocol)); + + if ((err = pbuf_copy(np, *pb)) != ERR_OK) { + pbuf_free(np); + return err; + } + + /* Reveal MPPE header + protocol */ + pbuf_add_header(np, MPPE_OVHD + sizeof(protocol)); + + *pb = np; + pl = (u8_t*)np->payload; + + state->ccount = (state->ccount + 1) % MPPE_CCOUNT_SPACE; + PPPDEBUG(LOG_DEBUG, ("mppe_compress[%d]: ccount %d\n", pcb->netif->num, state->ccount)); + /* FIXME: use PUT* macros */ + pl[0] = state->ccount>>8; + pl[1] = state->ccount; + + if (!state->stateful || /* stateless mode */ + ((state->ccount & 0xff) == 0xff) || /* "flag" packet */ + (state->bits & MPPE_BIT_FLUSHED)) { /* CCP Reset-Request */ + /* We must rekey */ + if (state->stateful) { + PPPDEBUG(LOG_DEBUG, ("mppe_compress[%d]: rekeying\n", pcb->netif->num)); + } + mppe_rekey(state, 0); + state->bits |= MPPE_BIT_FLUSHED; + } + pl[0] |= state->bits; + state->bits &= ~MPPE_BIT_FLUSHED; /* reset for next xmit */ + pl += MPPE_OVHD; + + /* Add protocol */ + /* FIXME: add PFC support */ + pl[0] = protocol >> 8; + pl[1] = protocol; + + /* Hide MPPE header */ + pbuf_remove_header(np, MPPE_OVHD); + + /* Encrypt packet */ + for (n = np; n != NULL; n = n->next) { + lwip_arc4_crypt(&state->arc4, (u8_t*)n->payload, n->len); + if (n->tot_len == n->len) { + break; + } + } + + /* Reveal MPPE header */ + pbuf_add_header(np, MPPE_OVHD); + + return ERR_OK; +} + +/* + * We received a CCP Reset-Ack. Just ignore it. + */ +void mppe_decomp_reset(ppp_pcb *pcb, ppp_mppe_state *state) +{ + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(state); + return; +} + +/* + * Decompress (decrypt) an MPPE packet. + */ +err_t +mppe_decompress(ppp_pcb *pcb, ppp_mppe_state *state, struct pbuf **pb) +{ + struct pbuf *n0 = *pb, *n; + u8_t *pl; + u16_t ccount; + u8_t flushed; + + /* MPPE Header */ + if (n0->len < MPPE_OVHD) { + PPPDEBUG(LOG_DEBUG, + ("mppe_decompress[%d]: short pkt (%d)\n", + pcb->netif->num, n0->len)); + state->sanity_errors += 100; + goto sanity_error; + } + + pl = (u8_t*)n0->payload; + flushed = MPPE_BITS(pl) & MPPE_BIT_FLUSHED; + ccount = MPPE_CCOUNT(pl); + PPPDEBUG(LOG_DEBUG, ("mppe_decompress[%d]: ccount %d\n", + pcb->netif->num, ccount)); + + /* sanity checks -- terminate with extreme prejudice */ + if (!(MPPE_BITS(pl) & MPPE_BIT_ENCRYPTED)) { + PPPDEBUG(LOG_DEBUG, + ("mppe_decompress[%d]: ENCRYPTED bit not set!\n", + pcb->netif->num)); + state->sanity_errors += 100; + goto sanity_error; + } + if (!state->stateful && !flushed) { + PPPDEBUG(LOG_DEBUG, ("mppe_decompress[%d]: FLUSHED bit not set in " + "stateless mode!\n", pcb->netif->num)); + state->sanity_errors += 100; + goto sanity_error; + } + if (state->stateful && ((ccount & 0xff) == 0xff) && !flushed) { + PPPDEBUG(LOG_DEBUG, ("mppe_decompress[%d]: FLUSHED bit not set on " + "flag packet!\n", pcb->netif->num)); + state->sanity_errors += 100; + goto sanity_error; + } + + /* + * Check the coherency count. + */ + + if (!state->stateful) { + /* Discard late packet */ + if ((ccount - state->ccount) % MPPE_CCOUNT_SPACE > MPPE_CCOUNT_SPACE / 2) { + state->sanity_errors++; + goto sanity_error; + } + + /* RFC 3078, sec 8.1. Rekey for every packet. */ + while (state->ccount != ccount) { + mppe_rekey(state, 0); + state->ccount = (state->ccount + 1) % MPPE_CCOUNT_SPACE; + } + } else { + /* RFC 3078, sec 8.2. */ + if (!state->discard) { + /* normal state */ + state->ccount = (state->ccount + 1) % MPPE_CCOUNT_SPACE; + if (ccount != state->ccount) { + /* + * (ccount > state->ccount) + * Packet loss detected, enter the discard state. + * Signal the peer to rekey (by sending a CCP Reset-Request). + */ + state->discard = 1; + ccp_resetrequest(pcb); + return ERR_BUF; + } + } else { + /* discard state */ + if (!flushed) { + /* ccp.c will be silent (no additional CCP Reset-Requests). */ + return ERR_BUF; + } else { + /* Rekey for every missed "flag" packet. */ + while ((ccount & ~0xff) != + (state->ccount & ~0xff)) { + mppe_rekey(state, 0); + state->ccount = + (state->ccount + + 256) % MPPE_CCOUNT_SPACE; + } + + /* reset */ + state->discard = 0; + state->ccount = ccount; + /* + * Another problem with RFC 3078 here. It implies that the + * peer need not send a Reset-Ack packet. But RFC 1962 + * requires it. Hopefully, M$ does send a Reset-Ack; even + * though it isn't required for MPPE synchronization, it is + * required to reset CCP state. + */ + } + } + if (flushed) + mppe_rekey(state, 0); + } + + /* Hide MPPE header */ + pbuf_remove_header(n0, MPPE_OVHD); + + /* Decrypt the packet. */ + for (n = n0; n != NULL; n = n->next) { + lwip_arc4_crypt(&state->arc4, (u8_t*)n->payload, n->len); + if (n->tot_len == n->len) { + break; + } + } + + /* good packet credit */ + state->sanity_errors >>= 1; + + return ERR_OK; + +sanity_error: + if (state->sanity_errors >= SANITY_MAX) { + /* + * Take LCP down if the peer is sending too many bogons. + * We don't want to do this for a single or just a few + * instances since it could just be due to packet corruption. + */ + lcp_close(pcb, "Too many MPPE errors"); + } + return ERR_BUF; +} + +#endif /* PPP_SUPPORT && MPPE_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/multilink.c b/middleware/lwip/src/netif/ppp/multilink.c new file mode 100644 index 0000000..62014e8 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/multilink.c @@ -0,0 +1,609 @@ +/* + * multilink.c - support routines for multilink. + * + * Copyright (c) 2000-2002 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && defined(HAVE_MULTILINK) /* don't build if not configured for use in lwipopts.h */ + +/* Multilink support + * + * Multilink uses Samba TDB (Trivial Database Library), which + * we cannot port, because it needs a filesystem. + * + * We have to choose between doing a memory-shared TDB-clone, + * or dropping multilink support at all. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/fsm.h" +#include "netif/ppp/lcp.h" +#include "netif/ppp/tdb.h" + +bool endpoint_specified; /* user gave explicit endpoint discriminator */ +char *bundle_id; /* identifier for our bundle */ +char *blinks_id; /* key for the list of links */ +bool doing_multilink; /* multilink was enabled and agreed to */ +bool multilink_master; /* we own the multilink bundle */ + +extern TDB_CONTEXT *pppdb; +extern char db_key[]; + +static void make_bundle_links (int append); +static void remove_bundle_link (void); +static void iterate_bundle_links (void (*func) (char *)); + +static int get_default_epdisc (struct epdisc *); +static int parse_num (char *str, const char *key, int *valp); +static int owns_unit (TDB_DATA pid, int unit); + +#define set_ip_epdisc(ep, addr) do { \ + ep->length = 4; \ + ep->value[0] = addr >> 24; \ + ep->value[1] = addr >> 16; \ + ep->value[2] = addr >> 8; \ + ep->value[3] = addr; \ +} while (0) + +#define LOCAL_IP_ADDR(addr) \ + (((addr) & 0xff000000) == 0x0a000000 /* 10.x.x.x */ \ + || ((addr) & 0xfff00000) == 0xac100000 /* 172.16.x.x */ \ + || ((addr) & 0xffff0000) == 0xc0a80000) /* 192.168.x.x */ + +#define process_exists(n) (kill((n), 0) == 0 || errno != ESRCH) + +void +mp_check_options() +{ + lcp_options *wo = &lcp_wantoptions[0]; + lcp_options *ao = &lcp_allowoptions[0]; + + doing_multilink = 0; + if (!multilink) + return; + /* if we're doing multilink, we have to negotiate MRRU */ + if (!wo->neg_mrru) { + /* mrru not specified, default to mru */ + wo->mrru = wo->mru; + wo->neg_mrru = 1; + } + ao->mrru = ao->mru; + ao->neg_mrru = 1; + + if (!wo->neg_endpoint && !noendpoint) { + /* get a default endpoint value */ + wo->neg_endpoint = get_default_epdisc(&wo->endpoint); + } +} + +/* + * Make a new bundle or join us to an existing bundle + * if we are doing multilink. + */ +int +mp_join_bundle() +{ + lcp_options *go = &lcp_gotoptions[0]; + lcp_options *ho = &lcp_hisoptions[0]; + lcp_options *ao = &lcp_allowoptions[0]; + int unit, pppd_pid; + int l, mtu; + char *p; + TDB_DATA key, pid, rec; + + if (doing_multilink) { + /* have previously joined a bundle */ + if (!go->neg_mrru || !ho->neg_mrru) { + notice("oops, didn't get multilink on renegotiation"); + lcp_close(pcb, "multilink required"); + return 0; + } + /* XXX should check the peer_authname and ho->endpoint + are the same as previously */ + return 0; + } + + if (!go->neg_mrru || !ho->neg_mrru) { + /* not doing multilink */ + if (go->neg_mrru) + notice("oops, multilink negotiated only for receive"); + mtu = ho->neg_mru? ho->mru: PPP_MRU; + if (mtu > ao->mru) + mtu = ao->mru; + if (demand) { + /* already have a bundle */ + cfg_bundle(0, 0, 0, 0); + netif_set_mtu(pcb, mtu); + return 0; + } + make_new_bundle(0, 0, 0, 0); + set_ifunit(1); + netif_set_mtu(pcb, mtu); + return 0; + } + + doing_multilink = 1; + + /* + * Find the appropriate bundle or join a new one. + * First we make up a name for the bundle. + * The length estimate is worst-case assuming every + * character has to be quoted. + */ + l = 4 * strlen(peer_authname) + 10; + if (ho->neg_endpoint) + l += 3 * ho->endpoint.length + 8; + if (bundle_name) + l += 3 * strlen(bundle_name) + 2; + bundle_id = malloc(l); + if (bundle_id == 0) + novm("bundle identifier"); + + p = bundle_id; + p += slprintf(p, l-1, "BUNDLE=\"%q\"", peer_authname); + if (ho->neg_endpoint || bundle_name) + *p++ = '/'; + if (ho->neg_endpoint) + p += slprintf(p, bundle_id+l-p, "%s", + epdisc_to_str(&ho->endpoint)); + if (bundle_name) + p += slprintf(p, bundle_id+l-p, "/%v", bundle_name); + + /* Make the key for the list of links belonging to the bundle */ + l = p - bundle_id; + blinks_id = malloc(l + 7); + if (blinks_id == NULL) + novm("bundle links key"); + slprintf(blinks_id, l + 7, "BUNDLE_LINKS=%s", bundle_id + 7); + + /* + * For demand mode, we only need to configure the bundle + * and attach the link. + */ + mtu = LWIP_MIN(ho->mrru, ao->mru); + if (demand) { + cfg_bundle(go->mrru, ho->mrru, go->neg_ssnhf, ho->neg_ssnhf); + netif_set_mtu(pcb, mtu); + script_setenv("BUNDLE", bundle_id + 7, 1); + return 0; + } + + /* + * Check if the bundle ID is already in the database. + */ + unit = -1; + lock_db(); + key.dptr = bundle_id; + key.dsize = p - bundle_id; + pid = tdb_fetch(pppdb, key); + if (pid.dptr != NULL) { + /* bundle ID exists, see if the pppd record exists */ + rec = tdb_fetch(pppdb, pid); + if (rec.dptr != NULL && rec.dsize > 0) { + /* make sure the string is null-terminated */ + rec.dptr[rec.dsize-1] = 0; + /* parse the interface number */ + parse_num(rec.dptr, "IFNAME=ppp", &unit); + /* check the pid value */ + if (!parse_num(rec.dptr, "PPPD_PID=", &pppd_pid) + || !process_exists(pppd_pid) + || !owns_unit(pid, unit)) + unit = -1; + free(rec.dptr); + } + free(pid.dptr); + } + + if (unit >= 0) { + /* attach to existing unit */ + if (bundle_attach(unit)) { + set_ifunit(0); + script_setenv("BUNDLE", bundle_id + 7, 0); + make_bundle_links(1); + unlock_db(); + info("Link attached to %s", ifname); + return 1; + } + /* attach failed because bundle doesn't exist */ + } + + /* we have to make a new bundle */ + make_new_bundle(go->mrru, ho->mrru, go->neg_ssnhf, ho->neg_ssnhf); + set_ifunit(1); + netif_set_mtu(pcb, mtu); + script_setenv("BUNDLE", bundle_id + 7, 1); + make_bundle_links(pcb); + unlock_db(); + info("New bundle %s created", ifname); + multilink_master = 1; + return 0; +} + +void mp_exit_bundle() +{ + lock_db(); + remove_bundle_link(); + unlock_db(); +} + +static void sendhup(char *str) +{ + int pid; + + if (parse_num(str, "PPPD_PID=", &pid) && pid != getpid()) { + if (debug) + dbglog("sending SIGHUP to process %d", pid); + kill(pid, SIGHUP); + } +} + +void mp_bundle_terminated() +{ + TDB_DATA key; + + bundle_terminating = 1; + upper_layers_down(pcb); + notice("Connection terminated."); +#if PPP_STATS_SUPPORT + print_link_stats(); +#endif /* PPP_STATS_SUPPORT */ + if (!demand) { + remove_pidfiles(); + script_unsetenv("IFNAME"); + } + + lock_db(); + destroy_bundle(); + iterate_bundle_links(sendhup); + key.dptr = blinks_id; + key.dsize = strlen(blinks_id); + tdb_delete(pppdb, key); + unlock_db(); + + new_phase(PPP_PHASE_DEAD); + + doing_multilink = 0; + multilink_master = 0; +} + +static void make_bundle_links(int append) +{ + TDB_DATA key, rec; + char *p; + char entry[32]; + int l; + + key.dptr = blinks_id; + key.dsize = strlen(blinks_id); + slprintf(entry, sizeof(entry), "%s;", db_key); + p = entry; + if (append) { + rec = tdb_fetch(pppdb, key); + if (rec.dptr != NULL && rec.dsize > 0) { + rec.dptr[rec.dsize-1] = 0; + if (strstr(rec.dptr, db_key) != NULL) { + /* already in there? strange */ + warn("link entry already exists in tdb"); + return; + } + l = rec.dsize + strlen(entry); + p = malloc(l); + if (p == NULL) + novm("bundle link list"); + slprintf(p, l, "%s%s", rec.dptr, entry); + } else { + warn("bundle link list not found"); + } + if (rec.dptr != NULL) + free(rec.dptr); + } + rec.dptr = p; + rec.dsize = strlen(p) + 1; + if (tdb_store(pppdb, key, rec, TDB_REPLACE)) + error("couldn't %s bundle link list", + append? "update": "create"); + if (p != entry) + free(p); +} + +static void remove_bundle_link() +{ + TDB_DATA key, rec; + char entry[32]; + char *p, *q; + int l; + + key.dptr = blinks_id; + key.dsize = strlen(blinks_id); + slprintf(entry, sizeof(entry), "%s;", db_key); + + rec = tdb_fetch(pppdb, key); + if (rec.dptr == NULL || rec.dsize <= 0) { + if (rec.dptr != NULL) + free(rec.dptr); + return; + } + rec.dptr[rec.dsize-1] = 0; + p = strstr(rec.dptr, entry); + if (p != NULL) { + q = p + strlen(entry); + l = strlen(q) + 1; + memmove(p, q, l); + rec.dsize = p - rec.dptr + l; + if (tdb_store(pppdb, key, rec, TDB_REPLACE)) + error("couldn't update bundle link list (removal)"); + } + free(rec.dptr); +} + +static void iterate_bundle_links(void (*func)(char *)) +{ + TDB_DATA key, rec, pp; + char *p, *q; + + key.dptr = blinks_id; + key.dsize = strlen(blinks_id); + rec = tdb_fetch(pppdb, key); + if (rec.dptr == NULL || rec.dsize <= 0) { + error("bundle link list not found (iterating list)"); + if (rec.dptr != NULL) + free(rec.dptr); + return; + } + p = rec.dptr; + p[rec.dsize-1] = 0; + while ((q = strchr(p, ';')) != NULL) { + *q = 0; + key.dptr = p; + key.dsize = q - p; + pp = tdb_fetch(pppdb, key); + if (pp.dptr != NULL && pp.dsize > 0) { + pp.dptr[pp.dsize-1] = 0; + func(pp.dptr); + } + if (pp.dptr != NULL) + free(pp.dptr); + p = q + 1; + } + free(rec.dptr); +} + +static int +parse_num(str, key, valp) + char *str; + const char *key; + int *valp; +{ + char *p, *endp; + int i; + + p = strstr(str, key); + if (p != 0) { + p += strlen(key); + i = strtol(p, &endp, 10); + if (endp != p && (*endp == 0 || *endp == ';')) { + *valp = i; + return 1; + } + } + return 0; +} + +/* + * Check whether the pppd identified by `key' still owns ppp unit `unit'. + */ +static int +owns_unit(key, unit) + TDB_DATA key; + int unit; +{ + char ifkey[32]; + TDB_DATA kd, vd; + int ret = 0; + + slprintf(ifkey, sizeof(ifkey), "IFNAME=ppp%d", unit); + kd.dptr = ifkey; + kd.dsize = strlen(ifkey); + vd = tdb_fetch(pppdb, kd); + if (vd.dptr != NULL) { + ret = vd.dsize == key.dsize + && memcmp(vd.dptr, key.dptr, vd.dsize) == 0; + free(vd.dptr); + } + return ret; +} + +static int +get_default_epdisc(ep) + struct epdisc *ep; +{ + char *p; + struct hostent *hp; + u32_t addr; + + /* First try for an ethernet MAC address */ + p = get_first_ethernet(); + if (p != 0 && get_if_hwaddr(ep->value, p) >= 0) { + ep->class = EPD_MAC; + ep->length = 6; + return 1; + } + + /* see if our hostname corresponds to a reasonable IP address */ + hp = gethostbyname(hostname); + if (hp != NULL) { + addr = *(u32_t *)hp->h_addr; + if (!bad_ip_adrs(addr)) { + addr = lwip_ntohl(addr); + if (!LOCAL_IP_ADDR(addr)) { + ep->class = EPD_IP; + set_ip_epdisc(ep, addr); + return 1; + } + } + } + + return 0; +} + +/* + * epdisc_to_str - make a printable string from an endpoint discriminator. + */ + +static char *endp_class_names[] = { + "null", "local", "IP", "MAC", "magic", "phone" +}; + +char * +epdisc_to_str(ep) + struct epdisc *ep; +{ + static char str[MAX_ENDP_LEN*3+8]; + u_char *p = ep->value; + int i, mask = 0; + char *q, c, c2; + + if (ep->class == EPD_NULL && ep->length == 0) + return "null"; + if (ep->class == EPD_IP && ep->length == 4) { + u32_t addr; + + GETLONG(addr, p); + slprintf(str, sizeof(str), "IP:%I", lwip_htonl(addr)); + return str; + } + + c = ':'; + c2 = '.'; + if (ep->class == EPD_MAC && ep->length == 6) + c2 = ':'; + else if (ep->class == EPD_MAGIC && (ep->length % 4) == 0) + mask = 3; + q = str; + if (ep->class <= EPD_PHONENUM) + q += slprintf(q, sizeof(str)-1, "%s", + endp_class_names[ep->class]); + else + q += slprintf(q, sizeof(str)-1, "%d", ep->class); + c = ':'; + for (i = 0; i < ep->length && i < MAX_ENDP_LEN; ++i) { + if ((i & mask) == 0) { + *q++ = c; + c = c2; + } + q += slprintf(q, str + sizeof(str) - q, "%.2x", ep->value[i]); + } + return str; +} + +static int hexc_val(int c) +{ + if (c >= 'a') + return c - 'a' + 10; + if (c >= 'A') + return c - 'A' + 10; + return c - '0'; +} + +int +str_to_epdisc(ep, str) + struct epdisc *ep; + char *str; +{ + int i, l; + char *p, *endp; + + for (i = EPD_NULL; i <= EPD_PHONENUM; ++i) { + int sl = strlen(endp_class_names[i]); + if (strncasecmp(str, endp_class_names[i], sl) == 0) { + str += sl; + break; + } + } + if (i > EPD_PHONENUM) { + /* not a class name, try a decimal class number */ + i = strtol(str, &endp, 10); + if (endp == str) + return 0; /* can't parse class number */ + str = endp; + } + ep->class = i; + if (*str == 0) { + ep->length = 0; + return 1; + } + if (*str != ':' && *str != '.') + return 0; + ++str; + + if (i == EPD_IP) { + u32_t addr; + i = parse_dotted_ip(str, &addr); + if (i == 0 || str[i] != 0) + return 0; + set_ip_epdisc(ep, addr); + return 1; + } + if (i == EPD_MAC && get_if_hwaddr(ep->value, str) >= 0) { + ep->length = 6; + return 1; + } + + p = str; + for (l = 0; l < MAX_ENDP_LEN; ++l) { + if (*str == 0) + break; + if (p <= str) + for (p = str; isxdigit(*p); ++p) + ; + i = p - str; + if (i == 0) + return 0; + ep->value[l] = hexc_val(*str++); + if ((i & 1) == 0) + ep->value[l] = (ep->value[l] << 4) + hexc_val(*str++); + if (*str == ':' || *str == '.') + ++str; + } + if (*str != 0 || (ep->class == EPD_MAC && l != 6)) + return 0; + ep->length = l; + return 1; +} + +#endif /* PPP_SUPPORT && HAVE_MULTILINK */ diff --git a/middleware/lwip/src/netif/ppp/polarssl/README b/middleware/lwip/src/netif/ppp/polarssl/README new file mode 100644 index 0000000..3fdf159 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/polarssl/README @@ -0,0 +1,22 @@ +About PolarSSL files into lwIP PPP support +------------------------------------------ + +This folder contains some files fetched from the latest BSD release of +the PolarSSL project (PolarSSL 0.10.1-bsd) for ciphers and encryption +methods we need for lwIP PPP support. + +The PolarSSL files were cleaned to contain only the necessary struct +fields and functions needed for lwIP. + +The PolarSSL API was not changed at all, so if you are already using +PolarSSL you can choose to skip the compilation of the included PolarSSL +library into lwIP. + +If you are not using the embedded copy you must include external +libraries into your arch/cc.h port file. + +Beware of the stack requirements which can be a lot larger if you are not +using our cleaned PolarSSL library. + + +PolarSSL project website: http://polarssl.org/ diff --git a/middleware/lwip/src/netif/ppp/polarssl/arc4.c b/middleware/lwip/src/netif/ppp/polarssl/arc4.c new file mode 100644 index 0000000..6e17ec4 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/polarssl/arc4.c @@ -0,0 +1,101 @@ +/* + * An implementation of the ARCFOUR algorithm + * + * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine + * + * Copyright (C) 2009 Paul Bakker + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names of PolarSSL or XySSL nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/* + * The ARCFOUR algorithm was publicly disclosed on 94/09. + * + * http://groups.google.com/group/sci.crypt/msg/10a300c9d21afca0 + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && LWIP_INCLUDED_POLARSSL_ARC4 + +#include "netif/ppp/polarssl/arc4.h" +/* + * ARC4 key schedule + */ +void arc4_setup( arc4_context *ctx, unsigned char *key, int keylen ) +{ + int i, j, k, a; + unsigned char *m; + + ctx->x = 0; + ctx->y = 0; + m = ctx->m; + + for( i = 0; i < 256; i++ ) + m[i] = (unsigned char) i; + + j = k = 0; + + for( i = 0; i < 256; i++, k++ ) + { + if( k >= keylen ) k = 0; + + a = m[i]; + j = ( j + a + key[k] ) & 0xFF; + m[i] = m[j]; + m[j] = (unsigned char) a; + } +} + +/* + * ARC4 cipher function + */ +void arc4_crypt( arc4_context *ctx, unsigned char *buf, int buflen ) +{ + int i, x, y, a, b; + unsigned char *m; + + x = ctx->x; + y = ctx->y; + m = ctx->m; + + for( i = 0; i < buflen; i++ ) + { + x = ( x + 1 ) & 0xFF; a = m[x]; + y = ( y + a ) & 0xFF; b = m[y]; + + m[x] = (unsigned char) b; + m[y] = (unsigned char) a; + + buf[i] = (unsigned char) + ( buf[i] ^ m[(unsigned char)( a + b )] ); + } + + ctx->x = x; + ctx->y = y; +} + +#endif /* PPP_SUPPORT && LWIP_INCLUDED_POLARSSL_DES */ diff --git a/middleware/lwip/src/netif/ppp/polarssl/des.c b/middleware/lwip/src/netif/ppp/polarssl/des.c new file mode 100644 index 0000000..9a89d00 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/polarssl/des.c @@ -0,0 +1,422 @@ +/* + * FIPS-46-3 compliant Triple-DES implementation + * + * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine + * + * Copyright (C) 2009 Paul Bakker + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names of PolarSSL or XySSL nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/* + * DES, on which TDES is based, was originally designed by Horst Feistel + * at IBM in 1974, and was adopted as a standard by NIST (formerly NBS). + * + * http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && LWIP_INCLUDED_POLARSSL_DES + +#include "netif/ppp/polarssl/des.h" + +/* + * 32-bit integer manipulation macros (big endian) + */ +#ifndef GET_ULONG_BE +#define GET_ULONG_BE(n,b,i) \ +{ \ + (n) = ( (unsigned long) (b)[(i) ] << 24 ) \ + | ( (unsigned long) (b)[(i) + 1] << 16 ) \ + | ( (unsigned long) (b)[(i) + 2] << 8 ) \ + | ( (unsigned long) (b)[(i) + 3] ); \ +} +#endif + +#ifndef PUT_ULONG_BE +#define PUT_ULONG_BE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) ); \ +} +#endif + +/* + * Expanded DES S-boxes + */ +static const unsigned long SB1[64] = +{ + 0x01010400, 0x00000000, 0x00010000, 0x01010404, + 0x01010004, 0x00010404, 0x00000004, 0x00010000, + 0x00000400, 0x01010400, 0x01010404, 0x00000400, + 0x01000404, 0x01010004, 0x01000000, 0x00000004, + 0x00000404, 0x01000400, 0x01000400, 0x00010400, + 0x00010400, 0x01010000, 0x01010000, 0x01000404, + 0x00010004, 0x01000004, 0x01000004, 0x00010004, + 0x00000000, 0x00000404, 0x00010404, 0x01000000, + 0x00010000, 0x01010404, 0x00000004, 0x01010000, + 0x01010400, 0x01000000, 0x01000000, 0x00000400, + 0x01010004, 0x00010000, 0x00010400, 0x01000004, + 0x00000400, 0x00000004, 0x01000404, 0x00010404, + 0x01010404, 0x00010004, 0x01010000, 0x01000404, + 0x01000004, 0x00000404, 0x00010404, 0x01010400, + 0x00000404, 0x01000400, 0x01000400, 0x00000000, + 0x00010004, 0x00010400, 0x00000000, 0x01010004 +}; + +static const unsigned long SB2[64] = +{ + 0x80108020, 0x80008000, 0x00008000, 0x00108020, + 0x00100000, 0x00000020, 0x80100020, 0x80008020, + 0x80000020, 0x80108020, 0x80108000, 0x80000000, + 0x80008000, 0x00100000, 0x00000020, 0x80100020, + 0x00108000, 0x00100020, 0x80008020, 0x00000000, + 0x80000000, 0x00008000, 0x00108020, 0x80100000, + 0x00100020, 0x80000020, 0x00000000, 0x00108000, + 0x00008020, 0x80108000, 0x80100000, 0x00008020, + 0x00000000, 0x00108020, 0x80100020, 0x00100000, + 0x80008020, 0x80100000, 0x80108000, 0x00008000, + 0x80100000, 0x80008000, 0x00000020, 0x80108020, + 0x00108020, 0x00000020, 0x00008000, 0x80000000, + 0x00008020, 0x80108000, 0x00100000, 0x80000020, + 0x00100020, 0x80008020, 0x80000020, 0x00100020, + 0x00108000, 0x00000000, 0x80008000, 0x00008020, + 0x80000000, 0x80100020, 0x80108020, 0x00108000 +}; + +static const unsigned long SB3[64] = +{ + 0x00000208, 0x08020200, 0x00000000, 0x08020008, + 0x08000200, 0x00000000, 0x00020208, 0x08000200, + 0x00020008, 0x08000008, 0x08000008, 0x00020000, + 0x08020208, 0x00020008, 0x08020000, 0x00000208, + 0x08000000, 0x00000008, 0x08020200, 0x00000200, + 0x00020200, 0x08020000, 0x08020008, 0x00020208, + 0x08000208, 0x00020200, 0x00020000, 0x08000208, + 0x00000008, 0x08020208, 0x00000200, 0x08000000, + 0x08020200, 0x08000000, 0x00020008, 0x00000208, + 0x00020000, 0x08020200, 0x08000200, 0x00000000, + 0x00000200, 0x00020008, 0x08020208, 0x08000200, + 0x08000008, 0x00000200, 0x00000000, 0x08020008, + 0x08000208, 0x00020000, 0x08000000, 0x08020208, + 0x00000008, 0x00020208, 0x00020200, 0x08000008, + 0x08020000, 0x08000208, 0x00000208, 0x08020000, + 0x00020208, 0x00000008, 0x08020008, 0x00020200 +}; + +static const unsigned long SB4[64] = +{ + 0x00802001, 0x00002081, 0x00002081, 0x00000080, + 0x00802080, 0x00800081, 0x00800001, 0x00002001, + 0x00000000, 0x00802000, 0x00802000, 0x00802081, + 0x00000081, 0x00000000, 0x00800080, 0x00800001, + 0x00000001, 0x00002000, 0x00800000, 0x00802001, + 0x00000080, 0x00800000, 0x00002001, 0x00002080, + 0x00800081, 0x00000001, 0x00002080, 0x00800080, + 0x00002000, 0x00802080, 0x00802081, 0x00000081, + 0x00800080, 0x00800001, 0x00802000, 0x00802081, + 0x00000081, 0x00000000, 0x00000000, 0x00802000, + 0x00002080, 0x00800080, 0x00800081, 0x00000001, + 0x00802001, 0x00002081, 0x00002081, 0x00000080, + 0x00802081, 0x00000081, 0x00000001, 0x00002000, + 0x00800001, 0x00002001, 0x00802080, 0x00800081, + 0x00002001, 0x00002080, 0x00800000, 0x00802001, + 0x00000080, 0x00800000, 0x00002000, 0x00802080 +}; + +static const unsigned long SB5[64] = +{ + 0x00000100, 0x02080100, 0x02080000, 0x42000100, + 0x00080000, 0x00000100, 0x40000000, 0x02080000, + 0x40080100, 0x00080000, 0x02000100, 0x40080100, + 0x42000100, 0x42080000, 0x00080100, 0x40000000, + 0x02000000, 0x40080000, 0x40080000, 0x00000000, + 0x40000100, 0x42080100, 0x42080100, 0x02000100, + 0x42080000, 0x40000100, 0x00000000, 0x42000000, + 0x02080100, 0x02000000, 0x42000000, 0x00080100, + 0x00080000, 0x42000100, 0x00000100, 0x02000000, + 0x40000000, 0x02080000, 0x42000100, 0x40080100, + 0x02000100, 0x40000000, 0x42080000, 0x02080100, + 0x40080100, 0x00000100, 0x02000000, 0x42080000, + 0x42080100, 0x00080100, 0x42000000, 0x42080100, + 0x02080000, 0x00000000, 0x40080000, 0x42000000, + 0x00080100, 0x02000100, 0x40000100, 0x00080000, + 0x00000000, 0x40080000, 0x02080100, 0x40000100 +}; + +static const unsigned long SB6[64] = +{ + 0x20000010, 0x20400000, 0x00004000, 0x20404010, + 0x20400000, 0x00000010, 0x20404010, 0x00400000, + 0x20004000, 0x00404010, 0x00400000, 0x20000010, + 0x00400010, 0x20004000, 0x20000000, 0x00004010, + 0x00000000, 0x00400010, 0x20004010, 0x00004000, + 0x00404000, 0x20004010, 0x00000010, 0x20400010, + 0x20400010, 0x00000000, 0x00404010, 0x20404000, + 0x00004010, 0x00404000, 0x20404000, 0x20000000, + 0x20004000, 0x00000010, 0x20400010, 0x00404000, + 0x20404010, 0x00400000, 0x00004010, 0x20000010, + 0x00400000, 0x20004000, 0x20000000, 0x00004010, + 0x20000010, 0x20404010, 0x00404000, 0x20400000, + 0x00404010, 0x20404000, 0x00000000, 0x20400010, + 0x00000010, 0x00004000, 0x20400000, 0x00404010, + 0x00004000, 0x00400010, 0x20004010, 0x00000000, + 0x20404000, 0x20000000, 0x00400010, 0x20004010 +}; + +static const unsigned long SB7[64] = +{ + 0x00200000, 0x04200002, 0x04000802, 0x00000000, + 0x00000800, 0x04000802, 0x00200802, 0x04200800, + 0x04200802, 0x00200000, 0x00000000, 0x04000002, + 0x00000002, 0x04000000, 0x04200002, 0x00000802, + 0x04000800, 0x00200802, 0x00200002, 0x04000800, + 0x04000002, 0x04200000, 0x04200800, 0x00200002, + 0x04200000, 0x00000800, 0x00000802, 0x04200802, + 0x00200800, 0x00000002, 0x04000000, 0x00200800, + 0x04000000, 0x00200800, 0x00200000, 0x04000802, + 0x04000802, 0x04200002, 0x04200002, 0x00000002, + 0x00200002, 0x04000000, 0x04000800, 0x00200000, + 0x04200800, 0x00000802, 0x00200802, 0x04200800, + 0x00000802, 0x04000002, 0x04200802, 0x04200000, + 0x00200800, 0x00000000, 0x00000002, 0x04200802, + 0x00000000, 0x00200802, 0x04200000, 0x00000800, + 0x04000002, 0x04000800, 0x00000800, 0x00200002 +}; + +static const unsigned long SB8[64] = +{ + 0x10001040, 0x00001000, 0x00040000, 0x10041040, + 0x10000000, 0x10001040, 0x00000040, 0x10000000, + 0x00040040, 0x10040000, 0x10041040, 0x00041000, + 0x10041000, 0x00041040, 0x00001000, 0x00000040, + 0x10040000, 0x10000040, 0x10001000, 0x00001040, + 0x00041000, 0x00040040, 0x10040040, 0x10041000, + 0x00001040, 0x00000000, 0x00000000, 0x10040040, + 0x10000040, 0x10001000, 0x00041040, 0x00040000, + 0x00041040, 0x00040000, 0x10041000, 0x00001000, + 0x00000040, 0x10040040, 0x00001000, 0x00041040, + 0x10001000, 0x00000040, 0x10000040, 0x10040000, + 0x10040040, 0x10000000, 0x00040000, 0x10001040, + 0x00000000, 0x10041040, 0x00040040, 0x10000040, + 0x10040000, 0x10001000, 0x10001040, 0x00000000, + 0x10041040, 0x00041000, 0x00041000, 0x00001040, + 0x00001040, 0x00040040, 0x10000000, 0x10041000 +}; + +/* + * PC1: left and right halves bit-swap + */ +static const unsigned long LHs[16] = +{ + 0x00000000, 0x00000001, 0x00000100, 0x00000101, + 0x00010000, 0x00010001, 0x00010100, 0x00010101, + 0x01000000, 0x01000001, 0x01000100, 0x01000101, + 0x01010000, 0x01010001, 0x01010100, 0x01010101 +}; + +static const unsigned long RHs[16] = +{ + 0x00000000, 0x01000000, 0x00010000, 0x01010000, + 0x00000100, 0x01000100, 0x00010100, 0x01010100, + 0x00000001, 0x01000001, 0x00010001, 0x01010001, + 0x00000101, 0x01000101, 0x00010101, 0x01010101, +}; + +/* + * Initial Permutation macro + */ +#define DES_IP(X,Y) \ +{ \ + T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \ + T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \ + T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \ + T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \ + Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF; \ + T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T; \ + X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF; \ +} + +/* + * Final Permutation macro + */ +#define DES_FP(X,Y) \ +{ \ + X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF; \ + T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T; \ + Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF; \ + T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \ + T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \ + T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \ + T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \ +} + +/* + * DES round macro + */ +#define DES_ROUND(X,Y) \ +{ \ + T = *SK++ ^ X; \ + Y ^= SB8[ (T ) & 0x3F ] ^ \ + SB6[ (T >> 8) & 0x3F ] ^ \ + SB4[ (T >> 16) & 0x3F ] ^ \ + SB2[ (T >> 24) & 0x3F ]; \ + \ + T = *SK++ ^ ((X << 28) | (X >> 4)); \ + Y ^= SB7[ (T ) & 0x3F ] ^ \ + SB5[ (T >> 8) & 0x3F ] ^ \ + SB3[ (T >> 16) & 0x3F ] ^ \ + SB1[ (T >> 24) & 0x3F ]; \ +} + +#define SWAP(a,b) { unsigned long t = a; a = b; b = t; t = 0; } + +static void des_setkey( unsigned long SK[32], unsigned char key[8] ) +{ + int i; + unsigned long X, Y, T; + + GET_ULONG_BE( X, key, 0 ); + GET_ULONG_BE( Y, key, 4 ); + + /* + * Permuted Choice 1 + */ + T = ((Y >> 4) ^ X) & 0x0F0F0F0F; X ^= T; Y ^= (T << 4); + T = ((Y ) ^ X) & 0x10101010; X ^= T; Y ^= (T ); + + X = (LHs[ (X ) & 0xF] << 3) | (LHs[ (X >> 8) & 0xF ] << 2) + | (LHs[ (X >> 16) & 0xF] << 1) | (LHs[ (X >> 24) & 0xF ] ) + | (LHs[ (X >> 5) & 0xF] << 7) | (LHs[ (X >> 13) & 0xF ] << 6) + | (LHs[ (X >> 21) & 0xF] << 5) | (LHs[ (X >> 29) & 0xF ] << 4); + + Y = (RHs[ (Y >> 1) & 0xF] << 3) | (RHs[ (Y >> 9) & 0xF ] << 2) + | (RHs[ (Y >> 17) & 0xF] << 1) | (RHs[ (Y >> 25) & 0xF ] ) + | (RHs[ (Y >> 4) & 0xF] << 7) | (RHs[ (Y >> 12) & 0xF ] << 6) + | (RHs[ (Y >> 20) & 0xF] << 5) | (RHs[ (Y >> 28) & 0xF ] << 4); + + X &= 0x0FFFFFFF; + Y &= 0x0FFFFFFF; + + /* + * calculate subkeys + */ + for( i = 0; i < 16; i++ ) + { + if( i < 2 || i == 8 || i == 15 ) + { + X = ((X << 1) | (X >> 27)) & 0x0FFFFFFF; + Y = ((Y << 1) | (Y >> 27)) & 0x0FFFFFFF; + } + else + { + X = ((X << 2) | (X >> 26)) & 0x0FFFFFFF; + Y = ((Y << 2) | (Y >> 26)) & 0x0FFFFFFF; + } + + *SK++ = ((X << 4) & 0x24000000) | ((X << 28) & 0x10000000) + | ((X << 14) & 0x08000000) | ((X << 18) & 0x02080000) + | ((X << 6) & 0x01000000) | ((X << 9) & 0x00200000) + | ((X >> 1) & 0x00100000) | ((X << 10) & 0x00040000) + | ((X << 2) & 0x00020000) | ((X >> 10) & 0x00010000) + | ((Y >> 13) & 0x00002000) | ((Y >> 4) & 0x00001000) + | ((Y << 6) & 0x00000800) | ((Y >> 1) & 0x00000400) + | ((Y >> 14) & 0x00000200) | ((Y ) & 0x00000100) + | ((Y >> 5) & 0x00000020) | ((Y >> 10) & 0x00000010) + | ((Y >> 3) & 0x00000008) | ((Y >> 18) & 0x00000004) + | ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001); + + *SK++ = ((X << 15) & 0x20000000) | ((X << 17) & 0x10000000) + | ((X << 10) & 0x08000000) | ((X << 22) & 0x04000000) + | ((X >> 2) & 0x02000000) | ((X << 1) & 0x01000000) + | ((X << 16) & 0x00200000) | ((X << 11) & 0x00100000) + | ((X << 3) & 0x00080000) | ((X >> 6) & 0x00040000) + | ((X << 15) & 0x00020000) | ((X >> 4) & 0x00010000) + | ((Y >> 2) & 0x00002000) | ((Y << 8) & 0x00001000) + | ((Y >> 14) & 0x00000808) | ((Y >> 9) & 0x00000400) + | ((Y ) & 0x00000200) | ((Y << 7) & 0x00000100) + | ((Y >> 7) & 0x00000020) | ((Y >> 3) & 0x00000011) + | ((Y << 2) & 0x00000004) | ((Y >> 21) & 0x00000002); + } +} + +/* + * DES key schedule (56-bit, encryption) + */ +void des_setkey_enc( des_context *ctx, unsigned char key[8] ) +{ + des_setkey( ctx->sk, key ); +} + +/* + * DES key schedule (56-bit, decryption) + */ +void des_setkey_dec( des_context *ctx, unsigned char key[8] ) +{ + int i; + + des_setkey( ctx->sk, key ); + + for( i = 0; i < 16; i += 2 ) + { + SWAP( ctx->sk[i ], ctx->sk[30 - i] ); + SWAP( ctx->sk[i + 1], ctx->sk[31 - i] ); + } +} + +/* + * DES-ECB block encryption/decryption + */ +void des_crypt_ecb( des_context *ctx, + const unsigned char input[8], + unsigned char output[8] ) +{ + int i; + unsigned long X, Y, T, *SK; + + SK = ctx->sk; + + GET_ULONG_BE( X, input, 0 ); + GET_ULONG_BE( Y, input, 4 ); + + DES_IP( X, Y ); + + for( i = 0; i < 8; i++ ) + { + DES_ROUND( Y, X ); + DES_ROUND( X, Y ); + } + + DES_FP( Y, X ); + + PUT_ULONG_BE( Y, output, 0 ); + PUT_ULONG_BE( X, output, 4 ); +} + +#endif /* PPP_SUPPORT && LWIP_INCLUDED_POLARSSL_DES */ diff --git a/middleware/lwip/src/netif/ppp/polarssl/md4.c b/middleware/lwip/src/netif/ppp/polarssl/md4.c new file mode 100644 index 0000000..b1701a0 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/polarssl/md4.c @@ -0,0 +1,281 @@ +/* + * RFC 1186/1320 compliant MD4 implementation + * + * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine + * + * Copyright (C) 2009 Paul Bakker + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names of PolarSSL or XySSL nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/* + * The MD4 algorithm was designed by Ron Rivest in 1990. + * + * http://www.ietf.org/rfc/rfc1186.txt + * http://www.ietf.org/rfc/rfc1320.txt + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && LWIP_INCLUDED_POLARSSL_MD4 + +#include "netif/ppp/polarssl/md4.h" + +#include + +/* + * 32-bit integer manipulation macros (little endian) + */ +#ifndef GET_ULONG_LE +#define GET_ULONG_LE(n,b,i) \ +{ \ + (n) = ( (unsigned long) (b)[(i) ] ) \ + | ( (unsigned long) (b)[(i) + 1] << 8 ) \ + | ( (unsigned long) (b)[(i) + 2] << 16 ) \ + | ( (unsigned long) (b)[(i) + 3] << 24 ); \ +} +#endif + +#ifndef PUT_ULONG_LE +#define PUT_ULONG_LE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) >> 24 ); \ +} +#endif + +/* + * MD4 context setup + */ +void md4_starts( md4_context *ctx ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; + + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; +} + +static void md4_process( md4_context *ctx, const unsigned char data[64] ) +{ + unsigned long X[16], A, B, C, D; + + GET_ULONG_LE( X[ 0], data, 0 ); + GET_ULONG_LE( X[ 1], data, 4 ); + GET_ULONG_LE( X[ 2], data, 8 ); + GET_ULONG_LE( X[ 3], data, 12 ); + GET_ULONG_LE( X[ 4], data, 16 ); + GET_ULONG_LE( X[ 5], data, 20 ); + GET_ULONG_LE( X[ 6], data, 24 ); + GET_ULONG_LE( X[ 7], data, 28 ); + GET_ULONG_LE( X[ 8], data, 32 ); + GET_ULONG_LE( X[ 9], data, 36 ); + GET_ULONG_LE( X[10], data, 40 ); + GET_ULONG_LE( X[11], data, 44 ); + GET_ULONG_LE( X[12], data, 48 ); + GET_ULONG_LE( X[13], data, 52 ); + GET_ULONG_LE( X[14], data, 56 ); + GET_ULONG_LE( X[15], data, 60 ); + +#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) + + A = ctx->state[0]; + B = ctx->state[1]; + C = ctx->state[2]; + D = ctx->state[3]; + +#define F(x, y, z) ((x & y) | ((~x) & z)) +#define P(a,b,c,d,x,s) { a += F(b,c,d) + x; a = S(a,s); } + + P( A, B, C, D, X[ 0], 3 ); + P( D, A, B, C, X[ 1], 7 ); + P( C, D, A, B, X[ 2], 11 ); + P( B, C, D, A, X[ 3], 19 ); + P( A, B, C, D, X[ 4], 3 ); + P( D, A, B, C, X[ 5], 7 ); + P( C, D, A, B, X[ 6], 11 ); + P( B, C, D, A, X[ 7], 19 ); + P( A, B, C, D, X[ 8], 3 ); + P( D, A, B, C, X[ 9], 7 ); + P( C, D, A, B, X[10], 11 ); + P( B, C, D, A, X[11], 19 ); + P( A, B, C, D, X[12], 3 ); + P( D, A, B, C, X[13], 7 ); + P( C, D, A, B, X[14], 11 ); + P( B, C, D, A, X[15], 19 ); + +#undef P +#undef F + +#define F(x,y,z) ((x & y) | (x & z) | (y & z)) +#define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x5A827999; a = S(a,s); } + + P( A, B, C, D, X[ 0], 3 ); + P( D, A, B, C, X[ 4], 5 ); + P( C, D, A, B, X[ 8], 9 ); + P( B, C, D, A, X[12], 13 ); + P( A, B, C, D, X[ 1], 3 ); + P( D, A, B, C, X[ 5], 5 ); + P( C, D, A, B, X[ 9], 9 ); + P( B, C, D, A, X[13], 13 ); + P( A, B, C, D, X[ 2], 3 ); + P( D, A, B, C, X[ 6], 5 ); + P( C, D, A, B, X[10], 9 ); + P( B, C, D, A, X[14], 13 ); + P( A, B, C, D, X[ 3], 3 ); + P( D, A, B, C, X[ 7], 5 ); + P( C, D, A, B, X[11], 9 ); + P( B, C, D, A, X[15], 13 ); + +#undef P +#undef F + +#define F(x,y,z) (x ^ y ^ z) +#define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x6ED9EBA1; a = S(a,s); } + + P( A, B, C, D, X[ 0], 3 ); + P( D, A, B, C, X[ 8], 9 ); + P( C, D, A, B, X[ 4], 11 ); + P( B, C, D, A, X[12], 15 ); + P( A, B, C, D, X[ 2], 3 ); + P( D, A, B, C, X[10], 9 ); + P( C, D, A, B, X[ 6], 11 ); + P( B, C, D, A, X[14], 15 ); + P( A, B, C, D, X[ 1], 3 ); + P( D, A, B, C, X[ 9], 9 ); + P( C, D, A, B, X[ 5], 11 ); + P( B, C, D, A, X[13], 15 ); + P( A, B, C, D, X[ 3], 3 ); + P( D, A, B, C, X[11], 9 ); + P( C, D, A, B, X[ 7], 11 ); + P( B, C, D, A, X[15], 15 ); + +#undef F +#undef P + + ctx->state[0] += A; + ctx->state[1] += B; + ctx->state[2] += C; + ctx->state[3] += D; +} + +/* + * MD4 process buffer + */ +void md4_update( md4_context *ctx, const unsigned char *input, int ilen ) +{ + int fill; + unsigned long left; + + if( ilen <= 0 ) + return; + + left = ctx->total[0] & 0x3F; + fill = 64 - left; + + ctx->total[0] += ilen; + ctx->total[0] &= 0xFFFFFFFF; + + if( ctx->total[0] < (unsigned long) ilen ) + ctx->total[1]++; + + if( left && ilen >= fill ) + { + MEMCPY( (void *) (ctx->buffer + left), + input, fill ); + md4_process( ctx, ctx->buffer ); + input += fill; + ilen -= fill; + left = 0; + } + + while( ilen >= 64 ) + { + md4_process( ctx, input ); + input += 64; + ilen -= 64; + } + + if( ilen > 0 ) + { + MEMCPY( (void *) (ctx->buffer + left), + input, ilen ); + } +} + +static const unsigned char md4_padding[64] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* + * MD4 final digest + */ +void md4_finish( md4_context *ctx, unsigned char output[16] ) +{ + unsigned long last, padn; + unsigned long high, low; + unsigned char msglen[8]; + + high = ( ctx->total[0] >> 29 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); + + PUT_ULONG_LE( low, msglen, 0 ); + PUT_ULONG_LE( high, msglen, 4 ); + + last = ctx->total[0] & 0x3F; + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); + + md4_update( ctx, md4_padding, padn ); + md4_update( ctx, msglen, 8 ); + + PUT_ULONG_LE( ctx->state[0], output, 0 ); + PUT_ULONG_LE( ctx->state[1], output, 4 ); + PUT_ULONG_LE( ctx->state[2], output, 8 ); + PUT_ULONG_LE( ctx->state[3], output, 12 ); +} + +/* + * output = MD4( input buffer ) + */ +void md4( unsigned char *input, int ilen, unsigned char output[16] ) +{ + md4_context ctx; + + md4_starts( &ctx ); + md4_update( &ctx, input, ilen ); + md4_finish( &ctx, output ); +} + +#endif /* PPP_SUPPORT && LWIP_INCLUDED_POLARSSL_MD4 */ diff --git a/middleware/lwip/src/netif/ppp/polarssl/md5.c b/middleware/lwip/src/netif/ppp/polarssl/md5.c new file mode 100644 index 0000000..1ec4d81 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/polarssl/md5.c @@ -0,0 +1,300 @@ +/* + * RFC 1321 compliant MD5 implementation + * + * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine + * + * Copyright (C) 2009 Paul Bakker + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names of PolarSSL or XySSL nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/* + * The MD5 algorithm was designed by Ron Rivest in 1991. + * + * http://www.ietf.org/rfc/rfc1321.txt + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && LWIP_INCLUDED_POLARSSL_MD5 + +#include "netif/ppp/polarssl/md5.h" + +#include + +/* + * 32-bit integer manipulation macros (little endian) + */ +#ifndef GET_ULONG_LE +#define GET_ULONG_LE(n,b,i) \ +{ \ + (n) = ( (unsigned long) (b)[(i) ] ) \ + | ( (unsigned long) (b)[(i) + 1] << 8 ) \ + | ( (unsigned long) (b)[(i) + 2] << 16 ) \ + | ( (unsigned long) (b)[(i) + 3] << 24 ); \ +} +#endif + +#ifndef PUT_ULONG_LE +#define PUT_ULONG_LE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) >> 24 ); \ +} +#endif + +/* + * MD5 context setup + */ +void md5_starts( md5_context *ctx ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; + + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; +} + +static void md5_process( md5_context *ctx, const unsigned char data[64] ) +{ + unsigned long X[16], A, B, C, D; + + GET_ULONG_LE( X[ 0], data, 0 ); + GET_ULONG_LE( X[ 1], data, 4 ); + GET_ULONG_LE( X[ 2], data, 8 ); + GET_ULONG_LE( X[ 3], data, 12 ); + GET_ULONG_LE( X[ 4], data, 16 ); + GET_ULONG_LE( X[ 5], data, 20 ); + GET_ULONG_LE( X[ 6], data, 24 ); + GET_ULONG_LE( X[ 7], data, 28 ); + GET_ULONG_LE( X[ 8], data, 32 ); + GET_ULONG_LE( X[ 9], data, 36 ); + GET_ULONG_LE( X[10], data, 40 ); + GET_ULONG_LE( X[11], data, 44 ); + GET_ULONG_LE( X[12], data, 48 ); + GET_ULONG_LE( X[13], data, 52 ); + GET_ULONG_LE( X[14], data, 56 ); + GET_ULONG_LE( X[15], data, 60 ); + +#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) + +#define P(a,b,c,d,k,s,t) \ +{ \ + a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \ +} + + A = ctx->state[0]; + B = ctx->state[1]; + C = ctx->state[2]; + D = ctx->state[3]; + +#define F(x,y,z) (z ^ (x & (y ^ z))) + + P( A, B, C, D, 0, 7, 0xD76AA478 ); + P( D, A, B, C, 1, 12, 0xE8C7B756 ); + P( C, D, A, B, 2, 17, 0x242070DB ); + P( B, C, D, A, 3, 22, 0xC1BDCEEE ); + P( A, B, C, D, 4, 7, 0xF57C0FAF ); + P( D, A, B, C, 5, 12, 0x4787C62A ); + P( C, D, A, B, 6, 17, 0xA8304613 ); + P( B, C, D, A, 7, 22, 0xFD469501 ); + P( A, B, C, D, 8, 7, 0x698098D8 ); + P( D, A, B, C, 9, 12, 0x8B44F7AF ); + P( C, D, A, B, 10, 17, 0xFFFF5BB1 ); + P( B, C, D, A, 11, 22, 0x895CD7BE ); + P( A, B, C, D, 12, 7, 0x6B901122 ); + P( D, A, B, C, 13, 12, 0xFD987193 ); + P( C, D, A, B, 14, 17, 0xA679438E ); + P( B, C, D, A, 15, 22, 0x49B40821 ); + +#undef F + +#define F(x,y,z) (y ^ (z & (x ^ y))) + + P( A, B, C, D, 1, 5, 0xF61E2562 ); + P( D, A, B, C, 6, 9, 0xC040B340 ); + P( C, D, A, B, 11, 14, 0x265E5A51 ); + P( B, C, D, A, 0, 20, 0xE9B6C7AA ); + P( A, B, C, D, 5, 5, 0xD62F105D ); + P( D, A, B, C, 10, 9, 0x02441453 ); + P( C, D, A, B, 15, 14, 0xD8A1E681 ); + P( B, C, D, A, 4, 20, 0xE7D3FBC8 ); + P( A, B, C, D, 9, 5, 0x21E1CDE6 ); + P( D, A, B, C, 14, 9, 0xC33707D6 ); + P( C, D, A, B, 3, 14, 0xF4D50D87 ); + P( B, C, D, A, 8, 20, 0x455A14ED ); + P( A, B, C, D, 13, 5, 0xA9E3E905 ); + P( D, A, B, C, 2, 9, 0xFCEFA3F8 ); + P( C, D, A, B, 7, 14, 0x676F02D9 ); + P( B, C, D, A, 12, 20, 0x8D2A4C8A ); + +#undef F + +#define F(x,y,z) (x ^ y ^ z) + + P( A, B, C, D, 5, 4, 0xFFFA3942 ); + P( D, A, B, C, 8, 11, 0x8771F681 ); + P( C, D, A, B, 11, 16, 0x6D9D6122 ); + P( B, C, D, A, 14, 23, 0xFDE5380C ); + P( A, B, C, D, 1, 4, 0xA4BEEA44 ); + P( D, A, B, C, 4, 11, 0x4BDECFA9 ); + P( C, D, A, B, 7, 16, 0xF6BB4B60 ); + P( B, C, D, A, 10, 23, 0xBEBFBC70 ); + P( A, B, C, D, 13, 4, 0x289B7EC6 ); + P( D, A, B, C, 0, 11, 0xEAA127FA ); + P( C, D, A, B, 3, 16, 0xD4EF3085 ); + P( B, C, D, A, 6, 23, 0x04881D05 ); + P( A, B, C, D, 9, 4, 0xD9D4D039 ); + P( D, A, B, C, 12, 11, 0xE6DB99E5 ); + P( C, D, A, B, 15, 16, 0x1FA27CF8 ); + P( B, C, D, A, 2, 23, 0xC4AC5665 ); + +#undef F + +#define F(x,y,z) (y ^ (x | ~z)) + + P( A, B, C, D, 0, 6, 0xF4292244 ); + P( D, A, B, C, 7, 10, 0x432AFF97 ); + P( C, D, A, B, 14, 15, 0xAB9423A7 ); + P( B, C, D, A, 5, 21, 0xFC93A039 ); + P( A, B, C, D, 12, 6, 0x655B59C3 ); + P( D, A, B, C, 3, 10, 0x8F0CCC92 ); + P( C, D, A, B, 10, 15, 0xFFEFF47D ); + P( B, C, D, A, 1, 21, 0x85845DD1 ); + P( A, B, C, D, 8, 6, 0x6FA87E4F ); + P( D, A, B, C, 15, 10, 0xFE2CE6E0 ); + P( C, D, A, B, 6, 15, 0xA3014314 ); + P( B, C, D, A, 13, 21, 0x4E0811A1 ); + P( A, B, C, D, 4, 6, 0xF7537E82 ); + P( D, A, B, C, 11, 10, 0xBD3AF235 ); + P( C, D, A, B, 2, 15, 0x2AD7D2BB ); + P( B, C, D, A, 9, 21, 0xEB86D391 ); + +#undef F + + ctx->state[0] += A; + ctx->state[1] += B; + ctx->state[2] += C; + ctx->state[3] += D; +} + +/* + * MD5 process buffer + */ +void md5_update( md5_context *ctx, const unsigned char *input, int ilen ) +{ + int fill; + unsigned long left; + + if( ilen <= 0 ) + return; + + left = ctx->total[0] & 0x3F; + fill = 64 - left; + + ctx->total[0] += ilen; + ctx->total[0] &= 0xFFFFFFFF; + + if( ctx->total[0] < (unsigned long) ilen ) + ctx->total[1]++; + + if( left && ilen >= fill ) + { + MEMCPY( (void *) (ctx->buffer + left), + input, fill ); + md5_process( ctx, ctx->buffer ); + input += fill; + ilen -= fill; + left = 0; + } + + while( ilen >= 64 ) + { + md5_process( ctx, input ); + input += 64; + ilen -= 64; + } + + if( ilen > 0 ) + { + MEMCPY( (void *) (ctx->buffer + left), + input, ilen ); + } +} + +static const unsigned char md5_padding[64] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* + * MD5 final digest + */ +void md5_finish( md5_context *ctx, unsigned char output[16] ) +{ + unsigned long last, padn; + unsigned long high, low; + unsigned char msglen[8]; + + high = ( ctx->total[0] >> 29 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); + + PUT_ULONG_LE( low, msglen, 0 ); + PUT_ULONG_LE( high, msglen, 4 ); + + last = ctx->total[0] & 0x3F; + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); + + md5_update( ctx, md5_padding, padn ); + md5_update( ctx, msglen, 8 ); + + PUT_ULONG_LE( ctx->state[0], output, 0 ); + PUT_ULONG_LE( ctx->state[1], output, 4 ); + PUT_ULONG_LE( ctx->state[2], output, 8 ); + PUT_ULONG_LE( ctx->state[3], output, 12 ); +} + +/* + * output = MD5( input buffer ) + */ +void md5( unsigned char *input, int ilen, unsigned char output[16] ) +{ + md5_context ctx; + + md5_starts( &ctx ); + md5_update( &ctx, input, ilen ); + md5_finish( &ctx, output ); +} + +#endif /* PPP_SUPPORT && LWIP_INCLUDED_POLARSSL_MD5 */ diff --git a/middleware/lwip/src/netif/ppp/polarssl/sha1.c b/middleware/lwip/src/netif/ppp/polarssl/sha1.c new file mode 100644 index 0000000..c2192ea --- /dev/null +++ b/middleware/lwip/src/netif/ppp/polarssl/sha1.c @@ -0,0 +1,335 @@ +/* + * FIPS-180-1 compliant SHA-1 implementation + * + * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine + * + * Copyright (C) 2009 Paul Bakker + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names of PolarSSL or XySSL nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/* + * The SHA-1 standard was published by NIST in 1993. + * + * http://www.itl.nist.gov/fipspubs/fip180-1.htm + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && LWIP_INCLUDED_POLARSSL_SHA1 + +#include "netif/ppp/polarssl/sha1.h" + +#include + +/* + * 32-bit integer manipulation macros (big endian) + */ +#ifndef GET_ULONG_BE +#define GET_ULONG_BE(n,b,i) \ +{ \ + (n) = ( (unsigned long) (b)[(i) ] << 24 ) \ + | ( (unsigned long) (b)[(i) + 1] << 16 ) \ + | ( (unsigned long) (b)[(i) + 2] << 8 ) \ + | ( (unsigned long) (b)[(i) + 3] ); \ +} +#endif + +#ifndef PUT_ULONG_BE +#define PUT_ULONG_BE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) ); \ +} +#endif + +/* + * SHA-1 context setup + */ +void sha1_starts( sha1_context *ctx ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; + + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; + ctx->state[4] = 0xC3D2E1F0; +} + +static void sha1_process( sha1_context *ctx, const unsigned char data[64] ) +{ + unsigned long temp, W[16], A, B, C, D, E; + + GET_ULONG_BE( W[ 0], data, 0 ); + GET_ULONG_BE( W[ 1], data, 4 ); + GET_ULONG_BE( W[ 2], data, 8 ); + GET_ULONG_BE( W[ 3], data, 12 ); + GET_ULONG_BE( W[ 4], data, 16 ); + GET_ULONG_BE( W[ 5], data, 20 ); + GET_ULONG_BE( W[ 6], data, 24 ); + GET_ULONG_BE( W[ 7], data, 28 ); + GET_ULONG_BE( W[ 8], data, 32 ); + GET_ULONG_BE( W[ 9], data, 36 ); + GET_ULONG_BE( W[10], data, 40 ); + GET_ULONG_BE( W[11], data, 44 ); + GET_ULONG_BE( W[12], data, 48 ); + GET_ULONG_BE( W[13], data, 52 ); + GET_ULONG_BE( W[14], data, 56 ); + GET_ULONG_BE( W[15], data, 60 ); + +#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) + +#define R(t) \ +( \ + temp = W[(t - 3) & 0x0F] ^ W[(t - 8) & 0x0F] ^ \ + W[(t - 14) & 0x0F] ^ W[ t & 0x0F], \ + ( W[t & 0x0F] = S(temp,1) ) \ +) + +#define P(a,b,c,d,e,x) \ +{ \ + e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \ +} + + A = ctx->state[0]; + B = ctx->state[1]; + C = ctx->state[2]; + D = ctx->state[3]; + E = ctx->state[4]; + +#define F(x,y,z) (z ^ (x & (y ^ z))) +#define K 0x5A827999 + + P( A, B, C, D, E, W[0] ); + P( E, A, B, C, D, W[1] ); + P( D, E, A, B, C, W[2] ); + P( C, D, E, A, B, W[3] ); + P( B, C, D, E, A, W[4] ); + P( A, B, C, D, E, W[5] ); + P( E, A, B, C, D, W[6] ); + P( D, E, A, B, C, W[7] ); + P( C, D, E, A, B, W[8] ); + P( B, C, D, E, A, W[9] ); + P( A, B, C, D, E, W[10] ); + P( E, A, B, C, D, W[11] ); + P( D, E, A, B, C, W[12] ); + P( C, D, E, A, B, W[13] ); + P( B, C, D, E, A, W[14] ); + P( A, B, C, D, E, W[15] ); + P( E, A, B, C, D, R(16) ); + P( D, E, A, B, C, R(17) ); + P( C, D, E, A, B, R(18) ); + P( B, C, D, E, A, R(19) ); + +#undef K +#undef F + +#define F(x,y,z) (x ^ y ^ z) +#define K 0x6ED9EBA1 + + P( A, B, C, D, E, R(20) ); + P( E, A, B, C, D, R(21) ); + P( D, E, A, B, C, R(22) ); + P( C, D, E, A, B, R(23) ); + P( B, C, D, E, A, R(24) ); + P( A, B, C, D, E, R(25) ); + P( E, A, B, C, D, R(26) ); + P( D, E, A, B, C, R(27) ); + P( C, D, E, A, B, R(28) ); + P( B, C, D, E, A, R(29) ); + P( A, B, C, D, E, R(30) ); + P( E, A, B, C, D, R(31) ); + P( D, E, A, B, C, R(32) ); + P( C, D, E, A, B, R(33) ); + P( B, C, D, E, A, R(34) ); + P( A, B, C, D, E, R(35) ); + P( E, A, B, C, D, R(36) ); + P( D, E, A, B, C, R(37) ); + P( C, D, E, A, B, R(38) ); + P( B, C, D, E, A, R(39) ); + +#undef K +#undef F + +#define F(x,y,z) ((x & y) | (z & (x | y))) +#define K 0x8F1BBCDC + + P( A, B, C, D, E, R(40) ); + P( E, A, B, C, D, R(41) ); + P( D, E, A, B, C, R(42) ); + P( C, D, E, A, B, R(43) ); + P( B, C, D, E, A, R(44) ); + P( A, B, C, D, E, R(45) ); + P( E, A, B, C, D, R(46) ); + P( D, E, A, B, C, R(47) ); + P( C, D, E, A, B, R(48) ); + P( B, C, D, E, A, R(49) ); + P( A, B, C, D, E, R(50) ); + P( E, A, B, C, D, R(51) ); + P( D, E, A, B, C, R(52) ); + P( C, D, E, A, B, R(53) ); + P( B, C, D, E, A, R(54) ); + P( A, B, C, D, E, R(55) ); + P( E, A, B, C, D, R(56) ); + P( D, E, A, B, C, R(57) ); + P( C, D, E, A, B, R(58) ); + P( B, C, D, E, A, R(59) ); + +#undef K +#undef F + +#define F(x,y,z) (x ^ y ^ z) +#define K 0xCA62C1D6 + + P( A, B, C, D, E, R(60) ); + P( E, A, B, C, D, R(61) ); + P( D, E, A, B, C, R(62) ); + P( C, D, E, A, B, R(63) ); + P( B, C, D, E, A, R(64) ); + P( A, B, C, D, E, R(65) ); + P( E, A, B, C, D, R(66) ); + P( D, E, A, B, C, R(67) ); + P( C, D, E, A, B, R(68) ); + P( B, C, D, E, A, R(69) ); + P( A, B, C, D, E, R(70) ); + P( E, A, B, C, D, R(71) ); + P( D, E, A, B, C, R(72) ); + P( C, D, E, A, B, R(73) ); + P( B, C, D, E, A, R(74) ); + P( A, B, C, D, E, R(75) ); + P( E, A, B, C, D, R(76) ); + P( D, E, A, B, C, R(77) ); + P( C, D, E, A, B, R(78) ); + P( B, C, D, E, A, R(79) ); + +#undef K +#undef F + + ctx->state[0] += A; + ctx->state[1] += B; + ctx->state[2] += C; + ctx->state[3] += D; + ctx->state[4] += E; +} + +/* + * SHA-1 process buffer + */ +void sha1_update( sha1_context *ctx, const unsigned char *input, int ilen ) +{ + int fill; + unsigned long left; + + if( ilen <= 0 ) + return; + + left = ctx->total[0] & 0x3F; + fill = 64 - left; + + ctx->total[0] += ilen; + ctx->total[0] &= 0xFFFFFFFF; + + if( ctx->total[0] < (unsigned long) ilen ) + ctx->total[1]++; + + if( left && ilen >= fill ) + { + MEMCPY( (void *) (ctx->buffer + left), + input, fill ); + sha1_process( ctx, ctx->buffer ); + input += fill; + ilen -= fill; + left = 0; + } + + while( ilen >= 64 ) + { + sha1_process( ctx, input ); + input += 64; + ilen -= 64; + } + + if( ilen > 0 ) + { + MEMCPY( (void *) (ctx->buffer + left), + input, ilen ); + } +} + +static const unsigned char sha1_padding[64] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* + * SHA-1 final digest + */ +void sha1_finish( sha1_context *ctx, unsigned char output[20] ) +{ + unsigned long last, padn; + unsigned long high, low; + unsigned char msglen[8]; + + high = ( ctx->total[0] >> 29 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); + + PUT_ULONG_BE( high, msglen, 0 ); + PUT_ULONG_BE( low, msglen, 4 ); + + last = ctx->total[0] & 0x3F; + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); + + sha1_update( ctx, sha1_padding, padn ); + sha1_update( ctx, msglen, 8 ); + + PUT_ULONG_BE( ctx->state[0], output, 0 ); + PUT_ULONG_BE( ctx->state[1], output, 4 ); + PUT_ULONG_BE( ctx->state[2], output, 8 ); + PUT_ULONG_BE( ctx->state[3], output, 12 ); + PUT_ULONG_BE( ctx->state[4], output, 16 ); +} + +/* + * output = SHA-1( input buffer ) + */ +void sha1( unsigned char *input, int ilen, unsigned char output[20] ) +{ + sha1_context ctx; + + sha1_starts( &ctx ); + sha1_update( &ctx, input, ilen ); + sha1_finish( &ctx, output ); +} + +#endif /* PPP_SUPPORT && LWIP_INCLUDED_POLARSSL_SHA1 */ diff --git a/middleware/lwip/src/netif/ppp/ppp.c b/middleware/lwip/src/netif/ppp/ppp.c new file mode 100644 index 0000000..b8a33a3 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/ppp.c @@ -0,0 +1,1630 @@ +/***************************************************************************** +* ppp.c - Network Point to Point Protocol program file. +* +* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. +* portions Copyright (c) 1997 by Global Election Systems Inc. +* +* The authors hereby grant permission to use, copy, modify, distribute, +* and license this software and its documentation for any purpose, provided +* that existing copyright notices are retained in all copies and that this +* notice and the following disclaimer are included verbatim in any +* distributions. No written agreement, license, or royalty fee is required +* for any of the authorized uses. +* +* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR +* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +* +****************************************************************************** +* REVISION HISTORY +* +* 03-01-01 Marc Boucher +* Ported to lwIP. +* 97-11-05 Guy Lancaster , Global Election Systems Inc. +* Original. +*****************************************************************************/ + +/* + * ppp_defs.h - PPP definitions. + * + * if_pppvar.h - private structures and declarations for PPP. + * + * Copyright (c) 1994 The Australian National University. + * All rights reserved. + * + * Permission to use, copy, modify, and distribute this software and its + * documentation is hereby granted, provided that the above copyright + * notice appears in all copies. This software is provided without any + * warranty, express or implied. The Australian National University + * makes no representations about the suitability of this software for + * any purpose. + * + * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY + * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES + * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF + * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS + * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO + * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, + * OR MODIFICATIONS. + */ + +/* + * if_ppp.h - Point-to-Point Protocol definitions. + * + * Copyright (c) 1989 Carnegie Mellon University. + * All rights reserved. + * + * Redistribution and use in source and binary forms are permitted + * provided that the above copyright notice and this paragraph are + * duplicated in all such forms and that any documentation, + * advertising materials, and other materials related to such + * distribution and use acknowledge that the software was developed + * by Carnegie Mellon University. The name of the + * University may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +/** + * @defgroup ppp PPP + * @ingroup netifs + * @verbinclude "ppp.txt" + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/pbuf.h" +#include "lwip/stats.h" +#include "lwip/sys.h" +#include "lwip/tcpip.h" +#include "lwip/api.h" +#include "lwip/snmp.h" +#include "lwip/ip4.h" /* for ip4_input() */ +#if PPP_IPV6_SUPPORT +#include "lwip/ip6.h" /* for ip6_input() */ +#endif /* PPP_IPV6_SUPPORT */ +#include "lwip/dns.h" + +#include "netif/ppp/ppp_impl.h" +#include "netif/ppp/pppos.h" + +#include "netif/ppp/fsm.h" +#include "netif/ppp/lcp.h" +#include "netif/ppp/magic.h" + +#if PAP_SUPPORT +#include "netif/ppp/upap.h" +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT +#include "netif/ppp/chap-new.h" +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT +#include "netif/ppp/eap.h" +#endif /* EAP_SUPPORT */ +#if CCP_SUPPORT +#include "netif/ppp/ccp.h" +#endif /* CCP_SUPPORT */ +#if MPPE_SUPPORT +#include "netif/ppp/mppe.h" +#endif /* MPPE_SUPPORT */ +#if ECP_SUPPORT +#include "netif/ppp/ecp.h" +#endif /* EAP_SUPPORT */ +#if VJ_SUPPORT +#include "netif/ppp/vj.h" +#endif /* VJ_SUPPORT */ +#if PPP_IPV4_SUPPORT +#include "netif/ppp/ipcp.h" +#endif /* PPP_IPV4_SUPPORT */ +#if PPP_IPV6_SUPPORT +#include "netif/ppp/ipv6cp.h" +#endif /* PPP_IPV6_SUPPORT */ + +/*************************/ +/*** LOCAL DEFINITIONS ***/ +/*************************/ + +/* Memory pools */ +#if PPPOS_SUPPORT +LWIP_MEMPOOL_PROTOTYPE(PPPOS_PCB); +#endif +#if PPPOE_SUPPORT +LWIP_MEMPOOL_PROTOTYPE(PPPOE_IF); +#endif +#if PPPOL2TP_SUPPORT +LWIP_MEMPOOL_PROTOTYPE(PPPOL2TP_PCB); +#endif +#if LWIP_PPP_API && LWIP_MPU_COMPATIBLE +LWIP_MEMPOOL_PROTOTYPE(PPPAPI_MSG); +#endif +LWIP_MEMPOOL_DECLARE(PPP_PCB, MEMP_NUM_PPP_PCB, sizeof(ppp_pcb), "PPP_PCB") + +/* FIXME: add stats per PPP session */ +#if PPP_STATS_SUPPORT +static struct timeval start_time; /* Time when link was started. */ +static struct pppd_stats old_link_stats; +struct pppd_stats link_stats; +unsigned link_connect_time; +int link_stats_valid; +#endif /* PPP_STATS_SUPPORT */ + +/* + * PPP Data Link Layer "protocol" table. + * One entry per supported protocol. + * The last entry must be NULL. + */ +const struct protent* const protocols[] = { + &lcp_protent, +#if PAP_SUPPORT + &pap_protent, +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + &chap_protent, +#endif /* CHAP_SUPPORT */ +#if CBCP_SUPPORT + &cbcp_protent, +#endif /* CBCP_SUPPORT */ +#if PPP_IPV4_SUPPORT + &ipcp_protent, +#endif /* PPP_IPV4_SUPPORT */ +#if PPP_IPV6_SUPPORT + &ipv6cp_protent, +#endif /* PPP_IPV6_SUPPORT */ +#if CCP_SUPPORT + &ccp_protent, +#endif /* CCP_SUPPORT */ +#if ECP_SUPPORT + &ecp_protent, +#endif /* ECP_SUPPORT */ +#ifdef AT_CHANGE + &atcp_protent, +#endif /* AT_CHANGE */ +#if EAP_SUPPORT + &eap_protent, +#endif /* EAP_SUPPORT */ + NULL +}; + +/* Prototypes for procedures local to this file. */ +static void ppp_do_connect(void *arg); +static err_t ppp_netif_init_cb(struct netif *netif); +#if PPP_IPV4_SUPPORT +static err_t ppp_netif_output_ip4(struct netif *netif, struct pbuf *pb, const ip4_addr_t *ipaddr); +#endif /* PPP_IPV4_SUPPORT */ +#if PPP_IPV6_SUPPORT +static err_t ppp_netif_output_ip6(struct netif *netif, struct pbuf *pb, const ip6_addr_t *ipaddr); +#endif /* PPP_IPV6_SUPPORT */ +static err_t ppp_netif_output(struct netif *netif, struct pbuf *pb, u16_t protocol); + +/***********************************/ +/*** PUBLIC FUNCTION DEFINITIONS ***/ +/***********************************/ +#if PPP_AUTH_SUPPORT +void ppp_set_auth(ppp_pcb *pcb, u8_t authtype, const char *user, const char *passwd) { + LWIP_ASSERT_CORE_LOCKED(); +#if PAP_SUPPORT + pcb->settings.refuse_pap = !(authtype & PPPAUTHTYPE_PAP); +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + pcb->settings.refuse_chap = !(authtype & PPPAUTHTYPE_CHAP); +#if MSCHAP_SUPPORT + pcb->settings.refuse_mschap = !(authtype & PPPAUTHTYPE_MSCHAP); + pcb->settings.refuse_mschap_v2 = !(authtype & PPPAUTHTYPE_MSCHAP_V2); +#endif /* MSCHAP_SUPPORT */ +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + pcb->settings.refuse_eap = !(authtype & PPPAUTHTYPE_EAP); +#endif /* EAP_SUPPORT */ + pcb->settings.user = user; + pcb->settings.passwd = passwd; +} +#endif /* PPP_AUTH_SUPPORT */ + +#if MPPE_SUPPORT +/* Set MPPE configuration */ +void ppp_set_mppe(ppp_pcb *pcb, u8_t flags) { + if (flags == PPP_MPPE_DISABLE) { + pcb->settings.require_mppe = 0; + return; + } + + pcb->settings.require_mppe = 1; + pcb->settings.refuse_mppe_stateful = !(flags & PPP_MPPE_ALLOW_STATEFUL); + pcb->settings.refuse_mppe_40 = !!(flags & PPP_MPPE_REFUSE_40); + pcb->settings.refuse_mppe_128 = !!(flags & PPP_MPPE_REFUSE_128); +} +#endif /* MPPE_SUPPORT */ + +#if PPP_NOTIFY_PHASE +void ppp_set_notify_phase_callback(ppp_pcb *pcb, ppp_notify_phase_cb_fn notify_phase_cb) { + pcb->notify_phase_cb = notify_phase_cb; + notify_phase_cb(pcb, pcb->phase, pcb->ctx_cb); +} +#endif /* PPP_NOTIFY_PHASE */ + +/* + * Initiate a PPP connection. + * + * This can only be called if PPP is in the dead phase. + * + * Holdoff is the time to wait (in seconds) before initiating + * the connection. + * + * If this port connects to a modem, the modem connection must be + * established before calling this. + */ +err_t ppp_connect(ppp_pcb *pcb, u16_t holdoff) { + LWIP_ASSERT_CORE_LOCKED(); + if (pcb->phase != PPP_PHASE_DEAD) { + return ERR_ALREADY; + } + + PPPDEBUG(LOG_DEBUG, ("ppp_connect[%d]: holdoff=%d\n", pcb->netif->num, holdoff)); + + magic_randomize(); + + if (holdoff == 0) { + ppp_do_connect(pcb); + return ERR_OK; + } + + new_phase(pcb, PPP_PHASE_HOLDOFF); + sys_timeout((u32_t)(holdoff*1000), ppp_do_connect, pcb); + return ERR_OK; +} + +#if PPP_SERVER +/* + * Listen for an incoming PPP connection. + * + * This can only be called if PPP is in the dead phase. + * + * If this port connects to a modem, the modem connection must be + * established before calling this. + */ +err_t ppp_listen(ppp_pcb *pcb) { + LWIP_ASSERT_CORE_LOCKED(); + if (pcb->phase != PPP_PHASE_DEAD) { + return ERR_ALREADY; + } + + PPPDEBUG(LOG_DEBUG, ("ppp_listen[%d]\n", pcb->netif->num)); + + magic_randomize(); + + if (pcb->link_cb->listen) { + new_phase(pcb, PPP_PHASE_INITIALIZE); + pcb->link_cb->listen(pcb, pcb->link_ctx_cb); + return ERR_OK; + } + return ERR_IF; +} +#endif /* PPP_SERVER */ + +/* + * Initiate the end of a PPP connection. + * Any outstanding packets in the queues are dropped. + * + * Setting nocarrier to 1 close the PPP connection without initiating the + * shutdown procedure. Always using nocarrier = 0 is still recommended, + * this is going to take a little longer time if your link is down, but + * is a safer choice for the PPP state machine. + * + * Return 0 on success, an error code on failure. + */ +err_t +ppp_close(ppp_pcb *pcb, u8_t nocarrier) +{ + LWIP_ASSERT_CORE_LOCKED(); + + pcb->err_code = PPPERR_USER; + + /* holdoff phase, cancel the reconnection */ + if (pcb->phase == PPP_PHASE_HOLDOFF) { + sys_untimeout(ppp_do_connect, pcb); + new_phase(pcb, PPP_PHASE_DEAD); + } + + /* dead phase, nothing to do, call the status callback to be consistent */ + if (pcb->phase == PPP_PHASE_DEAD) { + pcb->link_status_cb(pcb, pcb->err_code, pcb->ctx_cb); + return ERR_OK; + } + + /* Already terminating, nothing to do */ + if (pcb->phase >= PPP_PHASE_TERMINATE) { + return ERR_INPROGRESS; + } + + /* LCP not open, close link protocol */ + if (pcb->phase < PPP_PHASE_ESTABLISH) { + new_phase(pcb, PPP_PHASE_DISCONNECT); + ppp_link_terminated(pcb); + return ERR_OK; + } + + /* + * Only accept carrier lost signal on the stable running phase in order + * to prevent changing the PPP phase FSM in transition phases. + * + * Always using nocarrier = 0 is still recommended, this is going to + * take a little longer time, but is a safer choice from FSM point of view. + */ + if (nocarrier && pcb->phase == PPP_PHASE_RUNNING) { + PPPDEBUG(LOG_DEBUG, ("ppp_close[%d]: carrier lost -> lcp_lowerdown\n", pcb->netif->num)); + lcp_lowerdown(pcb); + /* forced link termination, this will force link protocol to disconnect. */ + link_terminated(pcb); + return ERR_OK; + } + + /* Disconnect */ + PPPDEBUG(LOG_DEBUG, ("ppp_close[%d]: kill_link -> lcp_close\n", pcb->netif->num)); + /* LCP soft close request. */ + lcp_close(pcb, "User request"); + return ERR_OK; +} + +/* + * Release the control block. + * + * This can only be called if PPP is in the dead phase. + * + * You must use ppp_close() before if you wish to terminate + * an established PPP session. + * + * Return 0 on success, an error code on failure. + */ +err_t ppp_free(ppp_pcb *pcb) { + err_t err; + LWIP_ASSERT_CORE_LOCKED(); + if (pcb->phase != PPP_PHASE_DEAD) { + return ERR_CONN; + } + + PPPDEBUG(LOG_DEBUG, ("ppp_free[%d]\n", pcb->netif->num)); + + netif_remove(pcb->netif); + + err = pcb->link_cb->free(pcb, pcb->link_ctx_cb); + + LWIP_MEMPOOL_FREE(PPP_PCB, pcb); + return err; +} + +/* Get and set parameters for the given connection. + * Return 0 on success, an error code on failure. */ +err_t +ppp_ioctl(ppp_pcb *pcb, u8_t cmd, void *arg) +{ + LWIP_ASSERT_CORE_LOCKED(); + if (pcb == NULL) { + return ERR_VAL; + } + + switch(cmd) { + case PPPCTLG_UPSTATUS: /* Get the PPP up status. */ + if (!arg) { + goto fail; + } + *(int *)arg = (int)(0 +#if PPP_IPV4_SUPPORT + || pcb->if4_up +#endif /* PPP_IPV4_SUPPORT */ +#if PPP_IPV6_SUPPORT + || pcb->if6_up +#endif /* PPP_IPV6_SUPPORT */ + ); + return ERR_OK; + + case PPPCTLG_ERRCODE: /* Get the PPP error code. */ + if (!arg) { + goto fail; + } + *(int *)arg = (int)(pcb->err_code); + return ERR_OK; + + default: + goto fail; + } + +fail: + return ERR_VAL; +} + + +/**********************************/ +/*** LOCAL FUNCTION DEFINITIONS ***/ +/**********************************/ + +static void ppp_do_connect(void *arg) { + ppp_pcb *pcb = (ppp_pcb*)arg; + + LWIP_ASSERT("pcb->phase == PPP_PHASE_DEAD || pcb->phase == PPP_PHASE_HOLDOFF", pcb->phase == PPP_PHASE_DEAD || pcb->phase == PPP_PHASE_HOLDOFF); + + new_phase(pcb, PPP_PHASE_INITIALIZE); + pcb->link_cb->connect(pcb, pcb->link_ctx_cb); +} + +/* + * ppp_netif_init_cb - netif init callback + */ +static err_t ppp_netif_init_cb(struct netif *netif) { + netif->name[0] = 'p'; + netif->name[1] = 'p'; +#if PPP_IPV4_SUPPORT + netif->output = ppp_netif_output_ip4; +#endif /* PPP_IPV4_SUPPORT */ +#if PPP_IPV6_SUPPORT + netif->output_ip6 = ppp_netif_output_ip6; +#endif /* PPP_IPV6_SUPPORT */ +#if LWIP_NETIF_HOSTNAME + /* @todo: Initialize interface hostname */ + /* netif_set_hostname(netif, "lwip"); */ +#endif /* LWIP_NETIF_HOSTNAME */ + return ERR_OK; +} + +#if PPP_IPV4_SUPPORT +/* + * Send an IPv4 packet on the given connection. + */ +static err_t ppp_netif_output_ip4(struct netif *netif, struct pbuf *pb, const ip4_addr_t *ipaddr) { + LWIP_UNUSED_ARG(ipaddr); + return ppp_netif_output(netif, pb, PPP_IP); +} +#endif /* PPP_IPV4_SUPPORT */ + +#if PPP_IPV6_SUPPORT +/* + * Send an IPv6 packet on the given connection. + */ +static err_t ppp_netif_output_ip6(struct netif *netif, struct pbuf *pb, const ip6_addr_t *ipaddr) { + LWIP_UNUSED_ARG(ipaddr); + return ppp_netif_output(netif, pb, PPP_IPV6); +} +#endif /* PPP_IPV6_SUPPORT */ + +static err_t ppp_netif_output(struct netif *netif, struct pbuf *pb, u16_t protocol) { + ppp_pcb *pcb = (ppp_pcb*)netif->state; + err_t err; + struct pbuf *fpb = NULL; + + /* Check that the link is up. */ + if (0 +#if PPP_IPV4_SUPPORT + || (protocol == PPP_IP && !pcb->if4_up) +#endif /* PPP_IPV4_SUPPORT */ +#if PPP_IPV6_SUPPORT + || (protocol == PPP_IPV6 && !pcb->if6_up) +#endif /* PPP_IPV6_SUPPORT */ + ) { + PPPDEBUG(LOG_ERR, ("ppp_netif_output[%d]: link not up\n", pcb->netif->num)); + goto err_rte_drop; + } + +#if MPPE_SUPPORT + /* If MPPE is required, refuse any IP packet until we are able to crypt them. */ + if (pcb->settings.require_mppe && pcb->ccp_transmit_method != CI_MPPE) { + PPPDEBUG(LOG_ERR, ("ppp_netif_output[%d]: MPPE required, not up\n", pcb->netif->num)); + goto err_rte_drop; + } +#endif /* MPPE_SUPPORT */ + +#if VJ_SUPPORT + /* + * Attempt Van Jacobson header compression if VJ is configured and + * this is an IP packet. + */ + if (protocol == PPP_IP && pcb->vj_enabled) { + switch (vj_compress_tcp(&pcb->vj_comp, &pb)) { + case TYPE_IP: + /* No change... + protocol = PPP_IP; */ + break; + case TYPE_COMPRESSED_TCP: + /* vj_compress_tcp() returns a new allocated pbuf, indicate we should free + * our duplicated pbuf later */ + fpb = pb; + protocol = PPP_VJC_COMP; + break; + case TYPE_UNCOMPRESSED_TCP: + /* vj_compress_tcp() returns a new allocated pbuf, indicate we should free + * our duplicated pbuf later */ + fpb = pb; + protocol = PPP_VJC_UNCOMP; + break; + default: + PPPDEBUG(LOG_WARNING, ("ppp_netif_output[%d]: bad IP packet\n", pcb->netif->num)); + LINK_STATS_INC(link.proterr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(pcb->netif, ifoutdiscards); + return ERR_VAL; + } + } +#endif /* VJ_SUPPORT */ + +#if CCP_SUPPORT + switch (pcb->ccp_transmit_method) { + case 0: + break; /* Don't compress */ +#if MPPE_SUPPORT + case CI_MPPE: + if ((err = mppe_compress(pcb, &pcb->mppe_comp, &pb, protocol)) != ERR_OK) { + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); + goto err; + } + /* if VJ compressor returned a new allocated pbuf, free it */ + if (fpb) { + pbuf_free(fpb); + } + /* mppe_compress() returns a new allocated pbuf, indicate we should free + * our duplicated pbuf later */ + fpb = pb; + protocol = PPP_COMP; + break; +#endif /* MPPE_SUPPORT */ + default: + PPPDEBUG(LOG_ERR, ("ppp_netif_output[%d]: bad CCP transmit method\n", pcb->netif->num)); + goto err_rte_drop; /* Cannot really happen, we only negotiate what we are able to do */ + } +#endif /* CCP_SUPPORT */ + + err = pcb->link_cb->netif_output(pcb, pcb->link_ctx_cb, pb, protocol); + goto err; + +err_rte_drop: + err = ERR_RTE; + LINK_STATS_INC(link.rterr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(netif, ifoutdiscards); +err: + if (fpb) { + pbuf_free(fpb); + } + return err; +} + +/************************************/ +/*** PRIVATE FUNCTION DEFINITIONS ***/ +/************************************/ + +/* Initialize the PPP subsystem. */ +int ppp_init(void) +{ +#if PPPOS_SUPPORT + LWIP_MEMPOOL_INIT(PPPOS_PCB); +#endif +#if PPPOE_SUPPORT + LWIP_MEMPOOL_INIT(PPPOE_IF); +#endif +#if PPPOL2TP_SUPPORT + LWIP_MEMPOOL_INIT(PPPOL2TP_PCB); +#endif +#if LWIP_PPP_API && LWIP_MPU_COMPATIBLE + LWIP_MEMPOOL_INIT(PPPAPI_MSG); +#endif + + LWIP_MEMPOOL_INIT(PPP_PCB); + + /* + * Initialize magic number generator now so that protocols may + * use magic numbers in initialization. + */ + magic_init(); + + return 0; +} + +/* + * Create a new PPP control block. + * + * This initializes the PPP control block but does not + * attempt to negotiate the LCP session. + * + * Return a new PPP connection control block pointer + * on success or a null pointer on failure. + */ +ppp_pcb *ppp_new(struct netif *pppif, const struct link_callbacks *callbacks, void *link_ctx_cb, ppp_link_status_cb_fn link_status_cb, void *ctx_cb) { + ppp_pcb *pcb; + const struct protent *protp; + int i; + + /* PPP is single-threaded: without a callback, + * there is no way to know when the link is up. */ + if (link_status_cb == NULL) { + return NULL; + } + + pcb = (ppp_pcb*)LWIP_MEMPOOL_ALLOC(PPP_PCB); + if (pcb == NULL) { + return NULL; + } + + memset(pcb, 0, sizeof(ppp_pcb)); + + /* default configuration */ +#if PAP_SUPPORT + pcb->settings.pap_timeout_time = UPAP_DEFTIMEOUT; + pcb->settings.pap_max_transmits = UPAP_DEFTRANSMITS; +#if PPP_SERVER + pcb->settings.pap_req_timeout = UPAP_DEFREQTIME; +#endif /* PPP_SERVER */ +#endif /* PAP_SUPPORT */ + +#if CHAP_SUPPORT + pcb->settings.chap_timeout_time = CHAP_DEFTIMEOUT; + pcb->settings.chap_max_transmits = CHAP_DEFTRANSMITS; +#if PPP_SERVER + pcb->settings.chap_rechallenge_time = CHAP_DEFRECHALLENGETIME; +#endif /* PPP_SERVER */ +#endif /* CHAP_SUPPPORT */ + +#if EAP_SUPPORT + pcb->settings.eap_req_time = EAP_DEFREQTIME; + pcb->settings.eap_allow_req = EAP_DEFALLOWREQ; +#if PPP_SERVER + pcb->settings.eap_timeout_time = EAP_DEFTIMEOUT; + pcb->settings.eap_max_transmits = EAP_DEFTRANSMITS; +#endif /* PPP_SERVER */ +#endif /* EAP_SUPPORT */ + + pcb->settings.lcp_loopbackfail = LCP_DEFLOOPBACKFAIL; + pcb->settings.lcp_echo_interval = LCP_ECHOINTERVAL; + pcb->settings.lcp_echo_fails = LCP_MAXECHOFAILS; + + pcb->settings.fsm_timeout_time = FSM_DEFTIMEOUT; + pcb->settings.fsm_max_conf_req_transmits = FSM_DEFMAXCONFREQS; + pcb->settings.fsm_max_term_transmits = FSM_DEFMAXTERMREQS; + pcb->settings.fsm_max_nak_loops = FSM_DEFMAXNAKLOOPS; + + pcb->netif = pppif; + MIB2_INIT_NETIF(pppif, snmp_ifType_ppp, 0); + if (!netif_add(pcb->netif, +#if LWIP_IPV4 + IP4_ADDR_ANY4, IP4_ADDR_BROADCAST, IP4_ADDR_ANY4, +#endif /* LWIP_IPV4 */ + (void *)pcb, ppp_netif_init_cb, NULL)) { + LWIP_MEMPOOL_FREE(PPP_PCB, pcb); + PPPDEBUG(LOG_ERR, ("ppp_new: netif_add failed\n")); + return NULL; + } + /* FIXME: user application should be responsible to call netif_set_up(), + * remove it for next release with allowed behavior break */ + netif_set_up(pcb->netif); + + pcb->link_cb = callbacks; + pcb->link_ctx_cb = link_ctx_cb; + pcb->link_status_cb = link_status_cb; + pcb->ctx_cb = ctx_cb; + + /* + * Initialize each protocol. + */ + for (i = 0; (protp = protocols[i]) != NULL; ++i) { + (*protp->init)(pcb); + } + + new_phase(pcb, PPP_PHASE_DEAD); + return pcb; +} + +/** Initiate LCP open request */ +void ppp_start(ppp_pcb *pcb) { + PPPDEBUG(LOG_DEBUG, ("ppp_start[%d]\n", pcb->netif->num)); + + /* Clean data not taken care by anything else, mostly shared data. */ +#if PPP_STATS_SUPPORT + link_stats_valid = 0; +#endif /* PPP_STATS_SUPPORT */ +#if MPPE_SUPPORT + pcb->mppe_keys_set = 0; + memset(&pcb->mppe_comp, 0, sizeof(pcb->mppe_comp)); + memset(&pcb->mppe_decomp, 0, sizeof(pcb->mppe_decomp)); +#endif /* MPPE_SUPPORT */ +#if VJ_SUPPORT + vj_compress_init(&pcb->vj_comp); +#endif /* VJ_SUPPORT */ + + /* Start protocol */ + new_phase(pcb, PPP_PHASE_ESTABLISH); + lcp_open(pcb); + lcp_lowerup(pcb); + PPPDEBUG(LOG_DEBUG, ("ppp_start[%d]: finished\n", pcb->netif->num)); +} + +/** Called when link failed to setup */ +void ppp_link_failed(ppp_pcb *pcb) { + PPPDEBUG(LOG_DEBUG, ("ppp_link_failed[%d]\n", pcb->netif->num)); + new_phase(pcb, PPP_PHASE_DEAD); + pcb->err_code = PPPERR_OPEN; + pcb->link_status_cb(pcb, pcb->err_code, pcb->ctx_cb); +} + +/** Called when link is normally down (i.e. it was asked to end) */ +void ppp_link_end(ppp_pcb *pcb) { + PPPDEBUG(LOG_DEBUG, ("ppp_link_end[%d]\n", pcb->netif->num)); + new_phase(pcb, PPP_PHASE_DEAD); + if (pcb->err_code == PPPERR_NONE) { + pcb->err_code = PPPERR_CONNECT; + } + pcb->link_status_cb(pcb, pcb->err_code, pcb->ctx_cb); +} + +/* + * Pass the processed input packet to the appropriate handler. + * This function and all handlers run in the context of the tcpip_thread + */ +void ppp_input(ppp_pcb *pcb, struct pbuf *pb) { + u16_t protocol; +#if PPP_DEBUG && PPP_PROTOCOLNAME + const char *pname; +#endif /* PPP_DEBUG && PPP_PROTOCOLNAME */ + + magic_randomize(); + + if (pb->len < 2) { + PPPDEBUG(LOG_ERR, ("ppp_input[%d]: packet too short\n", pcb->netif->num)); + goto drop; + } + protocol = (((u8_t *)pb->payload)[0] << 8) | ((u8_t*)pb->payload)[1]; + +#if PRINTPKT_SUPPORT + ppp_dump_packet(pcb, "rcvd", (unsigned char *)pb->payload, pb->len); +#endif /* PRINTPKT_SUPPORT */ + + pbuf_remove_header(pb, sizeof(protocol)); + + LINK_STATS_INC(link.recv); + MIB2_STATS_NETIF_INC(pcb->netif, ifinucastpkts); + MIB2_STATS_NETIF_ADD(pcb->netif, ifinoctets, pb->tot_len); + + /* + * Toss all non-LCP packets unless LCP is OPEN. + */ + if (protocol != PPP_LCP && pcb->lcp_fsm.state != PPP_FSM_OPENED) { + ppp_dbglog(("Discarded non-LCP packet when LCP not open")); + goto drop; + } + + /* + * Until we get past the authentication phase, toss all packets + * except LCP, LQR and authentication packets. + */ + if (pcb->phase <= PPP_PHASE_AUTHENTICATE + && !(protocol == PPP_LCP +#if LQR_SUPPORT + || protocol == PPP_LQR +#endif /* LQR_SUPPORT */ +#if PAP_SUPPORT + || protocol == PPP_PAP +#endif /* PAP_SUPPORT */ +#if CHAP_SUPPORT + || protocol == PPP_CHAP +#endif /* CHAP_SUPPORT */ +#if EAP_SUPPORT + || protocol == PPP_EAP +#endif /* EAP_SUPPORT */ + )) { + ppp_dbglog(("discarding proto 0x%x in phase %d", protocol, pcb->phase)); + goto drop; + } + +#if CCP_SUPPORT +#if MPPE_SUPPORT + /* + * MPPE is required and unencrypted data has arrived (this + * should never happen!). We should probably drop the link if + * the protocol is in the range of what should be encrypted. + * At the least, we drop this packet. + */ + if (pcb->settings.require_mppe && protocol != PPP_COMP && protocol < 0x8000) { + PPPDEBUG(LOG_ERR, ("ppp_input[%d]: MPPE required, received unencrypted data!\n", pcb->netif->num)); + goto drop; + } +#endif /* MPPE_SUPPORT */ + + if (protocol == PPP_COMP) { + u8_t *pl; + + switch (pcb->ccp_receive_method) { +#if MPPE_SUPPORT + case CI_MPPE: + if (mppe_decompress(pcb, &pcb->mppe_decomp, &pb) != ERR_OK) { + goto drop; + } + break; +#endif /* MPPE_SUPPORT */ + default: + PPPDEBUG(LOG_ERR, ("ppp_input[%d]: bad CCP receive method\n", pcb->netif->num)); + goto drop; /* Cannot really happen, we only negotiate what we are able to do */ + } + + /* Assume no PFC */ + if (pb->len < 2) { + goto drop; + } + + /* Extract and hide protocol (do PFC decompression if necessary) */ + pl = (u8_t*)pb->payload; + if (pl[0] & 0x01) { + protocol = pl[0]; + pbuf_remove_header(pb, 1); + } else { + protocol = (pl[0] << 8) | pl[1]; + pbuf_remove_header(pb, 2); + } + } +#endif /* CCP_SUPPORT */ + + switch(protocol) { + +#if PPP_IPV4_SUPPORT + case PPP_IP: /* Internet Protocol */ + PPPDEBUG(LOG_INFO, ("ppp_input[%d]: ip in pbuf len=%d\n", pcb->netif->num, pb->tot_len)); + ip4_input(pb, pcb->netif); + return; +#endif /* PPP_IPV4_SUPPORT */ + +#if PPP_IPV6_SUPPORT + case PPP_IPV6: /* Internet Protocol Version 6 */ + PPPDEBUG(LOG_INFO, ("ppp_input[%d]: ip6 in pbuf len=%d\n", pcb->netif->num, pb->tot_len)); + ip6_input(pb, pcb->netif); + return; +#endif /* PPP_IPV6_SUPPORT */ + +#if VJ_SUPPORT + case PPP_VJC_COMP: /* VJ compressed TCP */ + /* + * Clip off the VJ header and prepend the rebuilt TCP/IP header and + * pass the result to IP. + */ + PPPDEBUG(LOG_INFO, ("ppp_input[%d]: vj_comp in pbuf len=%d\n", pcb->netif->num, pb->tot_len)); + if (pcb->vj_enabled && vj_uncompress_tcp(&pb, &pcb->vj_comp) >= 0) { + ip4_input(pb, pcb->netif); + return; + } + /* Something's wrong so drop it. */ + PPPDEBUG(LOG_WARNING, ("ppp_input[%d]: Dropping VJ compressed\n", pcb->netif->num)); + break; + + case PPP_VJC_UNCOMP: /* VJ uncompressed TCP */ + /* + * Process the TCP/IP header for VJ header compression and then pass + * the packet to IP. + */ + PPPDEBUG(LOG_INFO, ("ppp_input[%d]: vj_un in pbuf len=%d\n", pcb->netif->num, pb->tot_len)); + if (pcb->vj_enabled && vj_uncompress_uncomp(pb, &pcb->vj_comp) >= 0) { + ip4_input(pb, pcb->netif); + return; + } + /* Something's wrong so drop it. */ + PPPDEBUG(LOG_WARNING, ("ppp_input[%d]: Dropping VJ uncompressed\n", pcb->netif->num)); + break; +#endif /* VJ_SUPPORT */ + + default: { + int i; + const struct protent *protp; + + /* + * Upcall the proper protocol input routine. + */ + for (i = 0; (protp = protocols[i]) != NULL; ++i) { + if (protp->protocol == protocol) { + pb = pbuf_coalesce(pb, PBUF_RAW); + (*protp->input)(pcb, (u8_t*)pb->payload, pb->len); + goto out; + } +#if 0 /* UNUSED + * + * This is actually a (hacked?) way for the Linux kernel to pass a data + * packet to pppd. pppd in normal condition only do signaling + * (LCP, PAP, CHAP, IPCP, ...) and does not handle any data packet at all. + * + * We don't even need this interface, which is only there because of PPP + * interface limitation between Linux kernel and pppd. For MPPE, which uses + * CCP to negotiate although it is not really a (de)compressor, we added + * ccp_resetrequest() in CCP and MPPE input data flow is calling either + * ccp_resetrequest() or lcp_close() if the issue is, respectively, non-fatal + * or fatal, this is what ccp_datainput() really do. + */ + if (protocol == (protp->protocol & ~0x8000) + && protp->datainput != NULL) { + (*protp->datainput)(pcb, pb->payload, pb->len); + goto out; + } +#endif /* UNUSED */ + } + +#if PPP_DEBUG +#if PPP_PROTOCOLNAME + pname = protocol_name(protocol); + if (pname != NULL) { + ppp_warn(("Unsupported protocol '%s' (0x%x) received", pname, protocol)); + } else +#endif /* PPP_PROTOCOLNAME */ + ppp_warn(("Unsupported protocol 0x%x received", protocol)); +#endif /* PPP_DEBUG */ + if (pbuf_add_header(pb, sizeof(protocol))) { + PPPDEBUG(LOG_WARNING, ("ppp_input[%d]: Dropping (pbuf_add_header failed)\n", pcb->netif->num)); + goto drop; + } + lcp_sprotrej(pcb, (u8_t*)pb->payload, pb->len); + } + break; + } + +drop: + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(pcb->netif, ifindiscards); + +out: + pbuf_free(pb); +} + +/* + * Write a pbuf to a ppp link, only used from PPP functions + * to send PPP packets. + * + * IPv4 and IPv6 packets from lwIP are sent, respectively, + * with ppp_netif_output_ip4() and ppp_netif_output_ip6() + * functions (which are callbacks of the netif PPP interface). + */ +err_t ppp_write(ppp_pcb *pcb, struct pbuf *p) { +#if PRINTPKT_SUPPORT + ppp_dump_packet(pcb, "sent", (unsigned char *)p->payload+2, p->len-2); +#endif /* PRINTPKT_SUPPORT */ + return pcb->link_cb->write(pcb, pcb->link_ctx_cb, p); +} + +void ppp_link_terminated(ppp_pcb *pcb) { + PPPDEBUG(LOG_DEBUG, ("ppp_link_terminated[%d]\n", pcb->netif->num)); + pcb->link_cb->disconnect(pcb, pcb->link_ctx_cb); + PPPDEBUG(LOG_DEBUG, ("ppp_link_terminated[%d]: finished.\n", pcb->netif->num)); +} + + +/************************************************************************ + * Functions called by various PPP subsystems to configure + * the PPP interface or change the PPP phase. + */ + +/* + * new_phase - signal the start of a new phase of pppd's operation. + */ +void new_phase(ppp_pcb *pcb, int p) { + pcb->phase = p; + PPPDEBUG(LOG_DEBUG, ("ppp phase changed[%d]: phase=%d\n", pcb->netif->num, pcb->phase)); +#if PPP_NOTIFY_PHASE + if (pcb->notify_phase_cb != NULL) { + pcb->notify_phase_cb(pcb, p, pcb->ctx_cb); + } +#endif /* PPP_NOTIFY_PHASE */ +} + +/* + * ppp_send_config - configure the transmit-side characteristics of + * the ppp interface. + */ +int ppp_send_config(ppp_pcb *pcb, int mtu, u32_t accm, int pcomp, int accomp) { + LWIP_UNUSED_ARG(mtu); + /* pcb->mtu = mtu; -- set correctly with netif_set_mtu */ + + if (pcb->link_cb->send_config) { + pcb->link_cb->send_config(pcb, pcb->link_ctx_cb, accm, pcomp, accomp); + } + + PPPDEBUG(LOG_INFO, ("ppp_send_config[%d]\n", pcb->netif->num) ); + return 0; +} + +/* + * ppp_recv_config - configure the receive-side characteristics of + * the ppp interface. + */ +int ppp_recv_config(ppp_pcb *pcb, int mru, u32_t accm, int pcomp, int accomp) { + LWIP_UNUSED_ARG(mru); + + if (pcb->link_cb->recv_config) { + pcb->link_cb->recv_config(pcb, pcb->link_ctx_cb, accm, pcomp, accomp); + } + + PPPDEBUG(LOG_INFO, ("ppp_recv_config[%d]\n", pcb->netif->num)); + return 0; +} + +#if PPP_IPV4_SUPPORT +/* + * sifaddr - Config the interface IP addresses and netmask. + */ +int sifaddr(ppp_pcb *pcb, u32_t our_adr, u32_t his_adr, u32_t netmask) { + ip4_addr_t ip, nm, gw; + + ip4_addr_set_u32(&ip, our_adr); + ip4_addr_set_u32(&nm, netmask); + ip4_addr_set_u32(&gw, his_adr); + netif_set_addr(pcb->netif, &ip, &nm, &gw); + return 1; +} + +/******************************************************************** + * + * cifaddr - Clear the interface IP addresses, and delete routes + * through the interface if possible. + */ +int cifaddr(ppp_pcb *pcb, u32_t our_adr, u32_t his_adr) { + LWIP_UNUSED_ARG(our_adr); + LWIP_UNUSED_ARG(his_adr); + + netif_set_addr(pcb->netif, IP4_ADDR_ANY4, IP4_ADDR_BROADCAST, IP4_ADDR_ANY4); + return 1; +} + +#if 0 /* UNUSED - PROXY ARP */ +/******************************************************************** + * + * sifproxyarp - Make a proxy ARP entry for the peer. + */ + +int sifproxyarp(ppp_pcb *pcb, u32_t his_adr) { + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(his_adr); + return 0; +} + +/******************************************************************** + * + * cifproxyarp - Delete the proxy ARP entry for the peer. + */ + +int cifproxyarp(ppp_pcb *pcb, u32_t his_adr) { + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(his_adr); + return 0; +} +#endif /* UNUSED - PROXY ARP */ + +#if LWIP_DNS +/* + * sdns - Config the DNS servers + */ +int sdns(ppp_pcb *pcb, u32_t ns1, u32_t ns2) { + ip_addr_t ns; + LWIP_UNUSED_ARG(pcb); + + ip_addr_set_ip4_u32_val(ns, ns1); + dns_setserver(0, &ns); + ip_addr_set_ip4_u32_val(ns, ns2); + dns_setserver(1, &ns); + return 1; +} + +/******************************************************************** + * + * cdns - Clear the DNS servers + */ +int cdns(ppp_pcb *pcb, u32_t ns1, u32_t ns2) { + const ip_addr_t *nsa; + ip_addr_t nsb; + LWIP_UNUSED_ARG(pcb); + + nsa = dns_getserver(0); + ip_addr_set_ip4_u32_val(nsb, ns1); + if (ip_addr_eq(nsa, &nsb)) { + dns_setserver(0, IP_ADDR_ANY); + } + nsa = dns_getserver(1); + ip_addr_set_ip4_u32_val(nsb, ns2); + if (ip_addr_eq(nsa, &nsb)) { + dns_setserver(1, IP_ADDR_ANY); + } + return 1; +} +#endif /* LWIP_DNS */ + +#if VJ_SUPPORT +/******************************************************************** + * + * sifvjcomp - config tcp header compression + */ +int sifvjcomp(ppp_pcb *pcb, int vjcomp, int cidcomp, int maxcid) { + pcb->vj_enabled = vjcomp; + pcb->vj_comp.compressSlot = cidcomp; + pcb->vj_comp.maxSlotIndex = maxcid; + PPPDEBUG(LOG_INFO, ("sifvjcomp[%d]: VJ compress enable=%d slot=%d max slot=%d\n", + pcb->netif->num, vjcomp, cidcomp, maxcid)); + return 0; +} +#endif /* VJ_SUPPORT */ + +/* + * sifup - Config the interface up and enable IP packets to pass. + */ +int sifup(ppp_pcb *pcb) { + pcb->if4_up = 1; + pcb->err_code = PPPERR_NONE; + netif_set_link_up(pcb->netif); + + PPPDEBUG(LOG_DEBUG, ("sifup[%d]: err_code=%d\n", pcb->netif->num, pcb->err_code)); + pcb->link_status_cb(pcb, pcb->err_code, pcb->ctx_cb); + return 1; +} + +/******************************************************************** + * + * sifdown - Disable the indicated protocol and config the interface + * down if there are no remaining protocols. + */ +int sifdown(ppp_pcb *pcb) { + + pcb->if4_up = 0; + + if (1 +#if PPP_IPV6_SUPPORT + /* set the interface down if IPv6 is down as well */ + && !pcb->if6_up +#endif /* PPP_IPV6_SUPPORT */ + ) { + /* make sure the netif link callback is called */ + netif_set_link_down(pcb->netif); + } + PPPDEBUG(LOG_DEBUG, ("sifdown[%d]: err_code=%d\n", pcb->netif->num, pcb->err_code)); + return 1; +} + +/******************************************************************** + * + * Return user specified netmask, modified by any mask we might determine + * for address `addr' (in network byte order). + * Here we scan through the system's list of interfaces, looking for + * any non-point-to-point interfaces which might appear to be on the same + * network as `addr'. If we find any, we OR in their netmask to the + * user-specified netmask. + */ +u32_t get_mask(u32_t addr) { +#if 0 + u32_t mask, nmask; + + addr = lwip_htonl(addr); + if (IP_CLASSA(addr)) { /* determine network mask for address class */ + nmask = IP_CLASSA_NET; + } else if (IP_CLASSB(addr)) { + nmask = IP_CLASSB_NET; + } else { + nmask = IP_CLASSC_NET; + } + + /* class D nets are disallowed by bad_ip_adrs */ + mask = PP_HTONL(0xffffff00UL) | lwip_htonl(nmask); + + /* XXX + * Scan through the system's network interfaces. + * Get each netmask and OR them into our mask. + */ + /* return mask; */ + return mask; +#endif /* 0 */ + LWIP_UNUSED_ARG(addr); + return IPADDR_BROADCAST; +} +#endif /* PPP_IPV4_SUPPORT */ + +#if PPP_IPV6_SUPPORT +#define IN6_LLADDR_FROM_EUI64(ip6, eui64) do { \ + ip6.addr[0] = PP_HTONL(0xfe800000); \ + ip6.addr[1] = 0; \ + eui64_copy(eui64, ip6.addr[2]); \ + } while (0) + +/******************************************************************** + * + * sif6addr - Config the interface with an IPv6 link-local address + */ +int sif6addr(ppp_pcb *pcb, eui64_t our_eui64, eui64_t his_eui64) { + ip6_addr_t ip6; + LWIP_UNUSED_ARG(his_eui64); + + IN6_LLADDR_FROM_EUI64(ip6, our_eui64); + netif_ip6_addr_set(pcb->netif, 0, &ip6); + netif_ip6_addr_set_state(pcb->netif, 0, IP6_ADDR_PREFERRED); + /* FIXME: should we add an IPv6 static neighbor using his_eui64 ? */ + return 1; +} + +/******************************************************************** + * + * cif6addr - Remove IPv6 address from interface + */ +int cif6addr(ppp_pcb *pcb, eui64_t our_eui64, eui64_t his_eui64) { + LWIP_UNUSED_ARG(our_eui64); + LWIP_UNUSED_ARG(his_eui64); + + netif_ip6_addr_set_state(pcb->netif, 0, IP6_ADDR_INVALID); + netif_ip6_addr_set(pcb->netif, 0, IP6_ADDR_ANY6); + return 1; +} + +/* + * sif6up - Config the interface up and enable IPv6 packets to pass. + */ +int sif6up(ppp_pcb *pcb) { + + pcb->if6_up = 1; + pcb->err_code = PPPERR_NONE; + netif_set_link_up(pcb->netif); + + PPPDEBUG(LOG_DEBUG, ("sif6up[%d]: err_code=%d\n", pcb->netif->num, pcb->err_code)); + pcb->link_status_cb(pcb, pcb->err_code, pcb->ctx_cb); + return 1; +} + +/******************************************************************** + * + * sif6down - Disable the indicated protocol and config the interface + * down if there are no remaining protocols. + */ +int sif6down(ppp_pcb *pcb) { + + pcb->if6_up = 0; + + if (1 +#if PPP_IPV4_SUPPORT + /* set the interface down if IPv4 is down as well */ + && !pcb->if4_up +#endif /* PPP_IPV4_SUPPORT */ + ) { + /* make sure the netif link callback is called */ + netif_set_link_down(pcb->netif); + } + PPPDEBUG(LOG_DEBUG, ("sif6down[%d]: err_code=%d\n", pcb->netif->num, pcb->err_code)); + return 1; +} +#endif /* PPP_IPV6_SUPPORT */ + +#if DEMAND_SUPPORT +/* + * sifnpmode - Set the mode for handling packets for a given NP. + */ +int sifnpmode(ppp_pcb *pcb, int proto, enum NPmode mode) { + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(proto); + LWIP_UNUSED_ARG(mode); + return 0; +} +#endif /* DEMAND_SUPPORT */ + +/* + * netif_set_mtu - set the MTU on the PPP network interface. + */ +void netif_set_mtu(ppp_pcb *pcb, int mtu) { + + pcb->netif->mtu = mtu; + PPPDEBUG(LOG_INFO, ("netif_set_mtu[%d]: mtu=%d\n", pcb->netif->num, mtu)); +} + +/* + * netif_get_mtu - get PPP interface MTU + */ +int netif_get_mtu(ppp_pcb *pcb) { + + return pcb->netif->mtu; +} + +#if CCP_SUPPORT +#if 0 /* unused */ +/* + * ccp_test - whether a given compression method is acceptable for use. + */ +int +ccp_test(ppp_pcb *pcb, u_char *opt_ptr, int opt_len, int for_transmit) +{ + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(opt_ptr); + LWIP_UNUSED_ARG(opt_len); + LWIP_UNUSED_ARG(for_transmit); + return -1; +} +#endif /* unused */ + +/* + * ccp_set - inform about the current state of CCP. + */ +void +ccp_set(ppp_pcb *pcb, u8_t isopen, u8_t isup, u8_t receive_method, u8_t transmit_method) +{ + LWIP_UNUSED_ARG(isopen); + LWIP_UNUSED_ARG(isup); + pcb->ccp_receive_method = receive_method; + pcb->ccp_transmit_method = transmit_method; + PPPDEBUG(LOG_DEBUG, ("ccp_set[%d]: is_open=%d, is_up=%d, receive_method=%u, transmit_method=%u\n", + pcb->netif->num, isopen, isup, receive_method, transmit_method)); +} + +void +ccp_reset_comp(ppp_pcb *pcb) +{ + switch (pcb->ccp_transmit_method) { +#if MPPE_SUPPORT + case CI_MPPE: + mppe_comp_reset(pcb, &pcb->mppe_comp); + break; +#endif /* MPPE_SUPPORT */ + default: + break; + } +} + +void +ccp_reset_decomp(ppp_pcb *pcb) +{ + switch (pcb->ccp_receive_method) { +#if MPPE_SUPPORT + case CI_MPPE: + mppe_decomp_reset(pcb, &pcb->mppe_decomp); + break; +#endif /* MPPE_SUPPORT */ + default: + break; + } +} + +#if 0 /* unused */ +/* + * ccp_fatal_error - returns 1 if decompression was disabled as a + * result of an error detected after decompression of a packet, + * 0 otherwise. This is necessary because of patent nonsense. + */ +int +ccp_fatal_error(ppp_pcb *pcb) +{ + LWIP_UNUSED_ARG(pcb); + return 1; +} +#endif /* unused */ +#endif /* CCP_SUPPORT */ + +#if PPP_IDLETIMELIMIT +/******************************************************************** + * + * get_idle_time - return how long the link has been idle. + */ +int get_idle_time(ppp_pcb *pcb, struct ppp_idle *ip) { + /* FIXME: add idle time support and make it optional */ + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(ip); + return 1; +} +#endif /* PPP_IDLETIMELIMIT */ + +#if DEMAND_SUPPORT +/******************************************************************** + * + * get_loop_output - get outgoing packets from the ppp device, + * and detect when we want to bring the real link up. + * Return value is 1 if we need to bring up the link, 0 otherwise. + */ +int get_loop_output(void) { + return 0; +} +#endif /* DEMAND_SUPPORT */ + +#if PPP_PROTOCOLNAME +/* List of protocol names, to make our messages a little more informative. */ +struct protocol_list { + u_short proto; + const char *name; +} const protocol_list[] = { + { 0x21, "IP" }, + { 0x23, "OSI Network Layer" }, + { 0x25, "Xerox NS IDP" }, + { 0x27, "DECnet Phase IV" }, + { 0x29, "Appletalk" }, + { 0x2b, "Novell IPX" }, + { 0x2d, "VJ compressed TCP/IP" }, + { 0x2f, "VJ uncompressed TCP/IP" }, + { 0x31, "Bridging PDU" }, + { 0x33, "Stream Protocol ST-II" }, + { 0x35, "Banyan Vines" }, + { 0x39, "AppleTalk EDDP" }, + { 0x3b, "AppleTalk SmartBuffered" }, + { 0x3d, "Multi-Link" }, + { 0x3f, "NETBIOS Framing" }, + { 0x41, "Cisco Systems" }, + { 0x43, "Ascom Timeplex" }, + { 0x45, "Fujitsu Link Backup and Load Balancing (LBLB)" }, + { 0x47, "DCA Remote Lan" }, + { 0x49, "Serial Data Transport Protocol (PPP-SDTP)" }, + { 0x4b, "SNA over 802.2" }, + { 0x4d, "SNA" }, + { 0x4f, "IP6 Header Compression" }, + { 0x51, "KNX Bridging Data" }, + { 0x53, "Encryption" }, + { 0x55, "Individual Link Encryption" }, + { 0x57, "IPv6" }, + { 0x59, "PPP Muxing" }, + { 0x5b, "Vendor-Specific Network Protocol" }, + { 0x61, "RTP IPHC Full Header" }, + { 0x63, "RTP IPHC Compressed TCP" }, + { 0x65, "RTP IPHC Compressed non-TCP" }, + { 0x67, "RTP IPHC Compressed UDP 8" }, + { 0x69, "RTP IPHC Compressed RTP 8" }, + { 0x6f, "Stampede Bridging" }, + { 0x73, "MP+" }, + { 0xc1, "NTCITS IPI" }, + { 0xfb, "single-link compression" }, + { 0xfd, "Compressed Datagram" }, + { 0x0201, "802.1d Hello Packets" }, + { 0x0203, "IBM Source Routing BPDU" }, + { 0x0205, "DEC LANBridge100 Spanning Tree" }, + { 0x0207, "Cisco Discovery Protocol" }, + { 0x0209, "Netcs Twin Routing" }, + { 0x020b, "STP - Scheduled Transfer Protocol" }, + { 0x020d, "EDP - Extreme Discovery Protocol" }, + { 0x0211, "Optical Supervisory Channel Protocol" }, + { 0x0213, "Optical Supervisory Channel Protocol" }, + { 0x0231, "Luxcom" }, + { 0x0233, "Sigma Network Systems" }, + { 0x0235, "Apple Client Server Protocol" }, + { 0x0281, "MPLS Unicast" }, + { 0x0283, "MPLS Multicast" }, + { 0x0285, "IEEE p1284.4 standard - data packets" }, + { 0x0287, "ETSI TETRA Network Protocol Type 1" }, + { 0x0289, "Multichannel Flow Treatment Protocol" }, + { 0x2063, "RTP IPHC Compressed TCP No Delta" }, + { 0x2065, "RTP IPHC Context State" }, + { 0x2067, "RTP IPHC Compressed UDP 16" }, + { 0x2069, "RTP IPHC Compressed RTP 16" }, + { 0x4001, "Cray Communications Control Protocol" }, + { 0x4003, "CDPD Mobile Network Registration Protocol" }, + { 0x4005, "Expand accelerator protocol" }, + { 0x4007, "ODSICP NCP" }, + { 0x4009, "DOCSIS DLL" }, + { 0x400B, "Cetacean Network Detection Protocol" }, + { 0x4021, "Stacker LZS" }, + { 0x4023, "RefTek Protocol" }, + { 0x4025, "Fibre Channel" }, + { 0x4027, "EMIT Protocols" }, + { 0x405b, "Vendor-Specific Protocol (VSP)" }, + { 0x8021, "Internet Protocol Control Protocol" }, + { 0x8023, "OSI Network Layer Control Protocol" }, + { 0x8025, "Xerox NS IDP Control Protocol" }, + { 0x8027, "DECnet Phase IV Control Protocol" }, + { 0x8029, "Appletalk Control Protocol" }, + { 0x802b, "Novell IPX Control Protocol" }, + { 0x8031, "Bridging NCP" }, + { 0x8033, "Stream Protocol Control Protocol" }, + { 0x8035, "Banyan Vines Control Protocol" }, + { 0x803d, "Multi-Link Control Protocol" }, + { 0x803f, "NETBIOS Framing Control Protocol" }, + { 0x8041, "Cisco Systems Control Protocol" }, + { 0x8043, "Ascom Timeplex" }, + { 0x8045, "Fujitsu LBLB Control Protocol" }, + { 0x8047, "DCA Remote Lan Network Control Protocol (RLNCP)" }, + { 0x8049, "Serial Data Control Protocol (PPP-SDCP)" }, + { 0x804b, "SNA over 802.2 Control Protocol" }, + { 0x804d, "SNA Control Protocol" }, + { 0x804f, "IP6 Header Compression Control Protocol" }, + { 0x8051, "KNX Bridging Control Protocol" }, + { 0x8053, "Encryption Control Protocol" }, + { 0x8055, "Individual Link Encryption Control Protocol" }, + { 0x8057, "IPv6 Control Protocol" }, + { 0x8059, "PPP Muxing Control Protocol" }, + { 0x805b, "Vendor-Specific Network Control Protocol (VSNCP)" }, + { 0x806f, "Stampede Bridging Control Protocol" }, + { 0x8073, "MP+ Control Protocol" }, + { 0x80c1, "NTCITS IPI Control Protocol" }, + { 0x80fb, "Single Link Compression Control Protocol" }, + { 0x80fd, "Compression Control Protocol" }, + { 0x8207, "Cisco Discovery Protocol Control" }, + { 0x8209, "Netcs Twin Routing" }, + { 0x820b, "STP - Control Protocol" }, + { 0x820d, "EDPCP - Extreme Discovery Protocol Ctrl Prtcl" }, + { 0x8235, "Apple Client Server Protocol Control" }, + { 0x8281, "MPLSCP" }, + { 0x8285, "IEEE p1284.4 standard - Protocol Control" }, + { 0x8287, "ETSI TETRA TNP1 Control Protocol" }, + { 0x8289, "Multichannel Flow Treatment Protocol" }, + { 0xc021, "Link Control Protocol" }, + { 0xc023, "Password Authentication Protocol" }, + { 0xc025, "Link Quality Report" }, + { 0xc027, "Shiva Password Authentication Protocol" }, + { 0xc029, "CallBack Control Protocol (CBCP)" }, + { 0xc02b, "BACP Bandwidth Allocation Control Protocol" }, + { 0xc02d, "BAP" }, + { 0xc05b, "Vendor-Specific Authentication Protocol (VSAP)" }, + { 0xc081, "Container Control Protocol" }, + { 0xc223, "Challenge Handshake Authentication Protocol" }, + { 0xc225, "RSA Authentication Protocol" }, + { 0xc227, "Extensible Authentication Protocol" }, + { 0xc229, "Mitsubishi Security Info Exch Ptcl (SIEP)" }, + { 0xc26f, "Stampede Bridging Authorization Protocol" }, + { 0xc281, "Proprietary Authentication Protocol" }, + { 0xc283, "Proprietary Authentication Protocol" }, + { 0xc481, "Proprietary Node ID Authentication Protocol" }, + { 0, NULL }, +}; + +/* + * protocol_name - find a name for a PPP protocol. + */ +const char * protocol_name(int proto) { + const struct protocol_list *lp; + + for (lp = protocol_list; lp->proto != 0; ++lp) { + if (proto == lp->proto) { + return lp->name; + } + } + return NULL; +} +#endif /* PPP_PROTOCOLNAME */ + +#if PPP_STATS_SUPPORT + +/* ---- Note on PPP Stats support ---- + * + * The one willing link stats support should add the get_ppp_stats() + * to fetch statistics from lwIP. + */ + +/* + * reset_link_stats - "reset" stats when link goes up. + */ +void reset_link_stats(int u) { + if (!get_ppp_stats(u, &old_link_stats)) { + return; + } + gettimeofday(&start_time, NULL); +} + +/* + * update_link_stats - get stats at link termination. + */ +void update_link_stats(int u) { + struct timeval now; + char numbuf[32]; + + if (!get_ppp_stats(u, &link_stats) || gettimeofday(&now, NULL) < 0) { + return; + } + link_connect_time = now.tv_sec - start_time.tv_sec; + link_stats_valid = 1; + + link_stats.bytes_in -= old_link_stats.bytes_in; + link_stats.bytes_out -= old_link_stats.bytes_out; + link_stats.pkts_in -= old_link_stats.pkts_in; + link_stats.pkts_out -= old_link_stats.pkts_out; +} + +void print_link_stats() { + /* + * Print connect time and statistics. + */ + if (link_stats_valid) { + int t = (link_connect_time + 5) / 6; /* 1/10ths of minutes */ + info("Connect time %d.%d minutes.", t/10, t%10); + info("Sent %u bytes, received %u bytes.", link_stats.bytes_out, link_stats.bytes_in); + link_stats_valid = 0; + } +} +#endif /* PPP_STATS_SUPPORT */ + +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/pppapi.c b/middleware/lwip/src/netif/ppp/pppapi.c new file mode 100644 index 0000000..947f7ba --- /dev/null +++ b/middleware/lwip/src/netif/ppp/pppapi.c @@ -0,0 +1,427 @@ +/** + * @file + * Point To Point Protocol Sequential API module + * + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "netif/ppp/ppp_opts.h" + +#if LWIP_PPP_API /* don't build if not configured for use in lwipopts.h */ + +#include "netif/ppp/pppapi.h" +#include "lwip/priv/tcpip_priv.h" +#include "netif/ppp/pppoe.h" +#include "netif/ppp/pppol2tp.h" +#include "netif/ppp/pppos.h" + +#if LWIP_MPU_COMPATIBLE +LWIP_MEMPOOL_DECLARE(PPPAPI_MSG, MEMP_NUM_PPP_API_MSG, sizeof(struct pppapi_msg), "PPPAPI_MSG") +#endif + +#define PPPAPI_VAR_REF(name) API_VAR_REF(name) +#define PPPAPI_VAR_DECLARE(name) API_VAR_DECLARE(struct pppapi_msg, name) +#define PPPAPI_VAR_ALLOC(name) API_VAR_ALLOC_POOL(struct pppapi_msg, PPPAPI_MSG, name, ERR_MEM) +#define PPPAPI_VAR_ALLOC_RETURN_NULL(name) API_VAR_ALLOC_POOL(struct pppapi_msg, PPPAPI_MSG, name, NULL) +#define PPPAPI_VAR_FREE(name) API_VAR_FREE_POOL(PPPAPI_MSG, name) + +/** + * Call ppp_set_default() inside the tcpip_thread context. + */ +static err_t +pppapi_do_ppp_set_default(struct tcpip_api_call_data *m) +{ + /* cast through void* to silence alignment warnings. + * We know it works because the structs have been instantiated as struct pppapi_msg */ + struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m; + + ppp_set_default(msg->msg.ppp); + return ERR_OK; +} + +/** + * Call ppp_set_default() in a thread-safe way by running that function inside the + * tcpip_thread context. + */ +err_t +pppapi_set_default(ppp_pcb *pcb) +{ + err_t err; + PPPAPI_VAR_DECLARE(msg); + PPPAPI_VAR_ALLOC(msg); + + PPPAPI_VAR_REF(msg).msg.ppp = pcb; + err = tcpip_api_call(pppapi_do_ppp_set_default, &PPPAPI_VAR_REF(msg).call); + PPPAPI_VAR_FREE(msg); + return err; +} + + +#if PPP_NOTIFY_PHASE +/** + * Call ppp_set_notify_phase_callback() inside the tcpip_thread context. + */ +static err_t +pppapi_do_ppp_set_notify_phase_callback(struct tcpip_api_call_data *m) +{ + /* cast through void* to silence alignment warnings. + * We know it works because the structs have been instantiated as struct pppapi_msg */ + struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m; + + ppp_set_notify_phase_callback(msg->msg.ppp, msg->msg.msg.setnotifyphasecb.notify_phase_cb); + return ERR_OK; +} + +/** + * Call ppp_set_notify_phase_callback() in a thread-safe way by running that function inside the + * tcpip_thread context. + */ +err_t +pppapi_set_notify_phase_callback(ppp_pcb *pcb, ppp_notify_phase_cb_fn notify_phase_cb) +{ + err_t err; + PPPAPI_VAR_DECLARE(msg); + PPPAPI_VAR_ALLOC(msg); + + PPPAPI_VAR_REF(msg).msg.ppp = pcb; + PPPAPI_VAR_REF(msg).msg.msg.setnotifyphasecb.notify_phase_cb = notify_phase_cb; + err = tcpip_api_call(pppapi_do_ppp_set_notify_phase_callback, &PPPAPI_VAR_REF(msg).call); + PPPAPI_VAR_FREE(msg); + return err; +} +#endif /* PPP_NOTIFY_PHASE */ + + +#if PPPOS_SUPPORT +/** + * Call pppos_create() inside the tcpip_thread context. + */ +static err_t +pppapi_do_pppos_create(struct tcpip_api_call_data *m) +{ + /* cast through void* to silence alignment warnings. + * We know it works because the structs have been instantiated as struct pppapi_msg */ + struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m; + + msg->msg.ppp = pppos_create(msg->msg.msg.serialcreate.pppif, msg->msg.msg.serialcreate.output_cb, + msg->msg.msg.serialcreate.link_status_cb, msg->msg.msg.serialcreate.ctx_cb); + return ERR_OK; +} + +/** + * Call pppos_create() in a thread-safe way by running that function inside the + * tcpip_thread context. + */ +ppp_pcb* +pppapi_pppos_create(struct netif *pppif, pppos_output_cb_fn output_cb, + ppp_link_status_cb_fn link_status_cb, void *ctx_cb) +{ + ppp_pcb* result; + PPPAPI_VAR_DECLARE(msg); + PPPAPI_VAR_ALLOC_RETURN_NULL(msg); + + PPPAPI_VAR_REF(msg).msg.ppp = NULL; + PPPAPI_VAR_REF(msg).msg.msg.serialcreate.pppif = pppif; + PPPAPI_VAR_REF(msg).msg.msg.serialcreate.output_cb = output_cb; + PPPAPI_VAR_REF(msg).msg.msg.serialcreate.link_status_cb = link_status_cb; + PPPAPI_VAR_REF(msg).msg.msg.serialcreate.ctx_cb = ctx_cb; + tcpip_api_call(pppapi_do_pppos_create, &PPPAPI_VAR_REF(msg).call); + result = PPPAPI_VAR_REF(msg).msg.ppp; + PPPAPI_VAR_FREE(msg); + return result; +} +#endif /* PPPOS_SUPPORT */ + + +#if PPPOE_SUPPORT +/** + * Call pppoe_create() inside the tcpip_thread context. + */ +static err_t +pppapi_do_pppoe_create(struct tcpip_api_call_data *m) +{ + /* cast through void* to silence alignment warnings. + * We know it works because the structs have been instantiated as struct pppapi_msg */ + struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m; + + msg->msg.ppp = pppoe_create(msg->msg.msg.ethernetcreate.pppif, msg->msg.msg.ethernetcreate.ethif, + msg->msg.msg.ethernetcreate.service_name, msg->msg.msg.ethernetcreate.concentrator_name, + msg->msg.msg.ethernetcreate.link_status_cb, msg->msg.msg.ethernetcreate.ctx_cb); + return ERR_OK; +} + +/** + * Call pppoe_create() in a thread-safe way by running that function inside the + * tcpip_thread context. + */ +ppp_pcb* +pppapi_pppoe_create(struct netif *pppif, struct netif *ethif, const char *service_name, + const char *concentrator_name, ppp_link_status_cb_fn link_status_cb, + void *ctx_cb) +{ + ppp_pcb* result; + PPPAPI_VAR_DECLARE(msg); + PPPAPI_VAR_ALLOC_RETURN_NULL(msg); + + PPPAPI_VAR_REF(msg).msg.ppp = NULL; + PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.pppif = pppif; + PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.ethif = ethif; + PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.service_name = service_name; + PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.concentrator_name = concentrator_name; + PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.link_status_cb = link_status_cb; + PPPAPI_VAR_REF(msg).msg.msg.ethernetcreate.ctx_cb = ctx_cb; + tcpip_api_call(pppapi_do_pppoe_create, &PPPAPI_VAR_REF(msg).call); + result = PPPAPI_VAR_REF(msg).msg.ppp; + PPPAPI_VAR_FREE(msg); + return result; +} +#endif /* PPPOE_SUPPORT */ + + +#if PPPOL2TP_SUPPORT +/** + * Call pppol2tp_create() inside the tcpip_thread context. + */ +static err_t +pppapi_do_pppol2tp_create(struct tcpip_api_call_data *m) +{ + /* cast through void* to silence alignment warnings. + * We know it works because the structs have been instantiated as struct pppapi_msg */ + struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m; + + msg->msg.ppp = pppol2tp_create(msg->msg.msg.l2tpcreate.pppif, + msg->msg.msg.l2tpcreate.netif, API_EXPR_REF(msg->msg.msg.l2tpcreate.ipaddr), msg->msg.msg.l2tpcreate.port, +#if PPPOL2TP_AUTH_SUPPORT + msg->msg.msg.l2tpcreate.secret, + msg->msg.msg.l2tpcreate.secret_len, +#else /* PPPOL2TP_AUTH_SUPPORT */ + NULL, + 0, +#endif /* PPPOL2TP_AUTH_SUPPORT */ + msg->msg.msg.l2tpcreate.link_status_cb, msg->msg.msg.l2tpcreate.ctx_cb); + return ERR_OK; +} + +/** + * Call pppol2tp_create() in a thread-safe way by running that function inside the + * tcpip_thread context. + */ +ppp_pcb* +pppapi_pppol2tp_create(struct netif *pppif, struct netif *netif, ip_addr_t *ipaddr, u16_t port, + const u8_t *secret, u8_t secret_len, + ppp_link_status_cb_fn link_status_cb, void *ctx_cb) +{ + ppp_pcb* result; + PPPAPI_VAR_DECLARE(msg); + PPPAPI_VAR_ALLOC_RETURN_NULL(msg); +#if !PPPOL2TP_AUTH_SUPPORT + LWIP_UNUSED_ARG(secret); + LWIP_UNUSED_ARG(secret_len); +#endif /* !PPPOL2TP_AUTH_SUPPORT */ + + PPPAPI_VAR_REF(msg).msg.ppp = NULL; + PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.pppif = pppif; + PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.netif = netif; + PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.ipaddr = PPPAPI_VAR_REF(ipaddr); + PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.port = port; +#if PPPOL2TP_AUTH_SUPPORT + PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.secret = secret; + PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.secret_len = secret_len; +#endif /* PPPOL2TP_AUTH_SUPPORT */ + PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.link_status_cb = link_status_cb; + PPPAPI_VAR_REF(msg).msg.msg.l2tpcreate.ctx_cb = ctx_cb; + tcpip_api_call(pppapi_do_pppol2tp_create, &PPPAPI_VAR_REF(msg).call); + result = PPPAPI_VAR_REF(msg).msg.ppp; + PPPAPI_VAR_FREE(msg); + return result; +} +#endif /* PPPOL2TP_SUPPORT */ + + +/** + * Call ppp_connect() inside the tcpip_thread context. + */ +static err_t +pppapi_do_ppp_connect(struct tcpip_api_call_data *m) +{ + /* cast through void* to silence alignment warnings. + * We know it works because the structs have been instantiated as struct pppapi_msg */ + struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m; + + return ppp_connect(msg->msg.ppp, msg->msg.msg.connect.holdoff); +} + +/** + * Call ppp_connect() in a thread-safe way by running that function inside the + * tcpip_thread context. + */ +err_t +pppapi_connect(ppp_pcb *pcb, u16_t holdoff) +{ + err_t err; + PPPAPI_VAR_DECLARE(msg); + PPPAPI_VAR_ALLOC(msg); + + PPPAPI_VAR_REF(msg).msg.ppp = pcb; + PPPAPI_VAR_REF(msg).msg.msg.connect.holdoff = holdoff; + err = tcpip_api_call(pppapi_do_ppp_connect, &PPPAPI_VAR_REF(msg).call); + PPPAPI_VAR_FREE(msg); + return err; +} + + +#if PPP_SERVER +/** + * Call ppp_listen() inside the tcpip_thread context. + */ +static err_t +pppapi_do_ppp_listen(struct tcpip_api_call_data *m) +{ + /* cast through void* to silence alignment warnings. + * We know it works because the structs have been instantiated as struct pppapi_msg */ + struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m; + + return ppp_listen(msg->msg.ppp); +} + +/** + * Call ppp_listen() in a thread-safe way by running that function inside the + * tcpip_thread context. + */ +err_t +pppapi_listen(ppp_pcb *pcb) +{ + err_t err; + PPPAPI_VAR_DECLARE(msg); + PPPAPI_VAR_ALLOC(msg); + + PPPAPI_VAR_REF(msg).msg.ppp = pcb; + err = tcpip_api_call(pppapi_do_ppp_listen, &PPPAPI_VAR_REF(msg).call); + PPPAPI_VAR_FREE(msg); + return err; +} +#endif /* PPP_SERVER */ + + +/** + * Call ppp_close() inside the tcpip_thread context. + */ +static err_t +pppapi_do_ppp_close(struct tcpip_api_call_data *m) +{ + /* cast through void* to silence alignment warnings. + * We know it works because the structs have been instantiated as struct pppapi_msg */ + struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m; + + return ppp_close(msg->msg.ppp, msg->msg.msg.close.nocarrier); +} + +/** + * Call ppp_close() in a thread-safe way by running that function inside the + * tcpip_thread context. + */ +err_t +pppapi_close(ppp_pcb *pcb, u8_t nocarrier) +{ + err_t err; + PPPAPI_VAR_DECLARE(msg); + PPPAPI_VAR_ALLOC(msg); + + PPPAPI_VAR_REF(msg).msg.ppp = pcb; + PPPAPI_VAR_REF(msg).msg.msg.close.nocarrier = nocarrier; + err = tcpip_api_call(pppapi_do_ppp_close, &PPPAPI_VAR_REF(msg).call); + PPPAPI_VAR_FREE(msg); + return err; +} + + +/** + * Call ppp_free() inside the tcpip_thread context. + */ +static err_t +pppapi_do_ppp_free(struct tcpip_api_call_data *m) +{ + /* cast through void* to silence alignment warnings. + * We know it works because the structs have been instantiated as struct pppapi_msg */ + struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m; + + return ppp_free(msg->msg.ppp); +} + +/** + * Call ppp_free() in a thread-safe way by running that function inside the + * tcpip_thread context. + */ +err_t +pppapi_free(ppp_pcb *pcb) +{ + err_t err; + PPPAPI_VAR_DECLARE(msg); + PPPAPI_VAR_ALLOC(msg); + + PPPAPI_VAR_REF(msg).msg.ppp = pcb; + err = tcpip_api_call(pppapi_do_ppp_free, &PPPAPI_VAR_REF(msg).call); + PPPAPI_VAR_FREE(msg); + return err; +} + + +/** + * Call ppp_ioctl() inside the tcpip_thread context. + */ +static err_t +pppapi_do_ppp_ioctl(struct tcpip_api_call_data *m) +{ + /* cast through void* to silence alignment warnings. + * We know it works because the structs have been instantiated as struct pppapi_msg */ + struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m; + + return ppp_ioctl(msg->msg.ppp, msg->msg.msg.ioctl.cmd, msg->msg.msg.ioctl.arg); +} + +/** + * Call ppp_ioctl() in a thread-safe way by running that function inside the + * tcpip_thread context. + */ +err_t +pppapi_ioctl(ppp_pcb *pcb, u8_t cmd, void *arg) +{ + err_t err; + PPPAPI_VAR_DECLARE(msg); + PPPAPI_VAR_ALLOC(msg); + + PPPAPI_VAR_REF(msg).msg.ppp = pcb; + PPPAPI_VAR_REF(msg).msg.msg.ioctl.cmd = cmd; + PPPAPI_VAR_REF(msg).msg.msg.ioctl.arg = arg; + err = tcpip_api_call(pppapi_do_ppp_ioctl, &PPPAPI_VAR_REF(msg).call); + PPPAPI_VAR_FREE(msg); + return err; +} + +#endif /* LWIP_PPP_API */ diff --git a/middleware/lwip/src/netif/ppp/pppcrypt.c b/middleware/lwip/src/netif/ppp/pppcrypt.c new file mode 100644 index 0000000..82d78c1 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/pppcrypt.c @@ -0,0 +1,66 @@ +/* + * pppcrypt.c - PPP/DES linkage for MS-CHAP and EAP SRP-SHA1 + * + * Extracted from chap_ms.c by James Carlson. + * + * Copyright (c) 1995 Eric Rosenquist. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && MSCHAP_SUPPORT /* don't build if not necessary */ + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/pppcrypt.h" + + +static u_char pppcrypt_get_7bits(u_char *input, int startBit) { + unsigned int word; + + word = (unsigned)input[startBit / 8] << 8; + word |= (unsigned)input[startBit / 8 + 1]; + + word >>= 15 - (startBit % 8 + 7); + + return word & 0xFE; +} + +/* IN 56 bit DES key missing parity bits + * OUT 64 bit DES key with parity bits added + */ +void pppcrypt_56_to_64_bit_key(u_char *key, u_char * des_key) { + des_key[0] = pppcrypt_get_7bits(key, 0); + des_key[1] = pppcrypt_get_7bits(key, 7); + des_key[2] = pppcrypt_get_7bits(key, 14); + des_key[3] = pppcrypt_get_7bits(key, 21); + des_key[4] = pppcrypt_get_7bits(key, 28); + des_key[5] = pppcrypt_get_7bits(key, 35); + des_key[6] = pppcrypt_get_7bits(key, 42); + des_key[7] = pppcrypt_get_7bits(key, 49); +} + +#endif /* PPP_SUPPORT && MSCHAP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/pppoe.c b/middleware/lwip/src/netif/ppp/pppoe.c new file mode 100644 index 0000000..6e90c86 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/pppoe.c @@ -0,0 +1,1198 @@ +/***************************************************************************** +* pppoe.c - PPP Over Ethernet implementation for lwIP. +* +* Copyright (c) 2006 by Marc Boucher, Services Informatiques (MBSI) inc. +* +* The authors hereby grant permission to use, copy, modify, distribute, +* and license this software and its documentation for any purpose, provided +* that existing copyright notices are retained in all copies and that this +* notice and the following disclaimer are included verbatim in any +* distributions. No written agreement, license, or royalty fee is required +* for any of the authorized uses. +* +* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR +* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +* +****************************************************************************** +* REVISION HISTORY +* +* 06-01-01 Marc Boucher +* Ported to lwIP. +*****************************************************************************/ + + + +/* based on NetBSD: if_pppoe.c,v 1.64 2006/01/31 23:50:15 martin Exp */ + +/*- + * Copyright (c) 2002 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Martin Husemann . + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPPOE_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#if 0 /* UNUSED */ +#include +#include +#endif /* UNUSED */ + +#include "lwip/timeouts.h" +#include "lwip/memp.h" +#include "lwip/stats.h" +#include "lwip/snmp.h" + +#include "netif/ethernet.h" +#include "netif/ppp/ppp_impl.h" +#include "netif/ppp/lcp.h" +#include "netif/ppp/ipcp.h" +#include "netif/ppp/pppoe.h" + +/* Memory pool */ +LWIP_MEMPOOL_DECLARE(PPPOE_IF, MEMP_NUM_PPPOE_INTERFACES, sizeof(struct pppoe_softc), "PPPOE_IF") + +/* Add a 16 bit unsigned value to a buffer pointed to by PTR */ +#define PPPOE_ADD_16(PTR, VAL) \ + *(PTR)++ = (u8_t)((VAL) / 256); \ + *(PTR)++ = (u8_t)((VAL) % 256) + +/* Add a complete PPPoE header to the buffer pointed to by PTR */ +#define PPPOE_ADD_HEADER(PTR, CODE, SESS, LEN) \ + *(PTR)++ = PPPOE_VERTYPE; \ + *(PTR)++ = (CODE); \ + PPPOE_ADD_16(PTR, SESS); \ + PPPOE_ADD_16(PTR, LEN) + +#define PPPOE_DISC_TIMEOUT (5*1000) /* base for quick timeout calculation */ +#define PPPOE_SLOW_RETRY (60*1000) /* persistent retry interval */ +#define PPPOE_DISC_MAXPADI 4 /* retry PADI four times (quickly) */ +#define PPPOE_DISC_MAXPADR 2 /* retry PADR twice */ + +#ifdef PPPOE_SERVER +#error "PPPOE_SERVER is not yet supported under lwIP!" +/* from if_spppsubr.c */ +#define IFF_PASSIVE IFF_LINK0 /* wait passively for connection */ +#endif + +#define PPPOE_ERRORSTRING_LEN 64 + + +/* callbacks called from PPP core */ +static err_t pppoe_write(ppp_pcb *ppp, void *ctx, struct pbuf *p); +static err_t pppoe_netif_output(ppp_pcb *ppp, void *ctx, struct pbuf *p, u_short protocol); +static void pppoe_connect(ppp_pcb *ppp, void *ctx); +static void pppoe_disconnect(ppp_pcb *ppp, void *ctx); +static err_t pppoe_destroy(ppp_pcb *ppp, void *ctx); + +/* management routines */ +static void pppoe_abort_connect(struct pppoe_softc *); +#if 0 /* UNUSED */ +static void pppoe_clear_softc(struct pppoe_softc *, const char *); +#endif /* UNUSED */ + +/* internal timeout handling */ +static void pppoe_timeout(void *); + +/* sending actual protocol control packets */ +static err_t pppoe_send_padi(struct pppoe_softc *); +static err_t pppoe_send_padr(struct pppoe_softc *); +#ifdef PPPOE_SERVER +static err_t pppoe_send_pado(struct pppoe_softc *); +static err_t pppoe_send_pads(struct pppoe_softc *); +#endif +static err_t pppoe_send_padt(struct netif *, u_int, const u8_t *); + +/* internal helper functions */ +static err_t pppoe_xmit(struct pppoe_softc *sc, struct pbuf *pb); +static struct pppoe_softc* pppoe_find_softc_by_session(u_int session, struct netif *rcvif); +static struct pppoe_softc* pppoe_find_softc_by_hunique(u8_t *token, size_t len, struct netif *rcvif); + +/** linked list of created pppoe interfaces */ +static struct pppoe_softc *pppoe_softc_list; + +/* Callbacks structure for PPP core */ +static const struct link_callbacks pppoe_callbacks = { + pppoe_connect, +#if PPP_SERVER + NULL, +#endif /* PPP_SERVER */ + pppoe_disconnect, + pppoe_destroy, + pppoe_write, + pppoe_netif_output, + NULL, + NULL +}; + +/* + * Create a new PPP Over Ethernet (PPPoE) connection. + * + * Return 0 on success, an error code on failure. + */ +ppp_pcb *pppoe_create(struct netif *pppif, + struct netif *ethif, + const char *service_name, const char *concentrator_name, + ppp_link_status_cb_fn link_status_cb, void *ctx_cb) +{ + ppp_pcb *ppp; + struct pppoe_softc *sc; +#if !PPPOE_SCNAME_SUPPORT + LWIP_UNUSED_ARG(service_name); + LWIP_UNUSED_ARG(concentrator_name); +#endif /* !PPPOE_SCNAME_SUPPORT */ + LWIP_ASSERT_CORE_LOCKED(); + + sc = (struct pppoe_softc *)LWIP_MEMPOOL_ALLOC(PPPOE_IF); + if (sc == NULL) { + return NULL; + } + + ppp = ppp_new(pppif, &pppoe_callbacks, sc, link_status_cb, ctx_cb); + if (ppp == NULL) { + LWIP_MEMPOOL_FREE(PPPOE_IF, sc); + return NULL; + } + + memset(sc, 0, sizeof(struct pppoe_softc)); + sc->pcb = ppp; + sc->sc_ethif = ethif; +#if PPPOE_SCNAME_SUPPORT + sc->sc_service_name = service_name; + sc->sc_concentrator_name = concentrator_name; +#endif /* PPPOE_SCNAME_SUPPORT */ + /* put the new interface at the head of the list */ + sc->next = pppoe_softc_list; + pppoe_softc_list = sc; + return ppp; +} + +/* Called by PPP core */ +static err_t pppoe_write(ppp_pcb *ppp, void *ctx, struct pbuf *p) { + struct pppoe_softc *sc = (struct pppoe_softc *)ctx; + struct pbuf *ph; /* Ethernet + PPPoE header */ + err_t ret; +#if MIB2_STATS + u16_t tot_len; +#else /* MIB2_STATS */ + LWIP_UNUSED_ARG(ppp); +#endif /* MIB2_STATS */ + + /* skip address & flags */ + pbuf_remove_header(p, 2); + + ph = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HEADERLEN), PBUF_RAM); + if(!ph) { + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.proterr); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + pbuf_free(p); + return ERR_MEM; + } + + pbuf_remove_header(ph, PPPOE_HEADERLEN); /* hide PPPoE header */ + pbuf_cat(ph, p); +#if MIB2_STATS + tot_len = ph->tot_len; +#endif /* MIB2_STATS */ + + ret = pppoe_xmit(sc, ph); + if (ret != ERR_OK) { + LINK_STATS_INC(link.err); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + return ret; + } + + MIB2_STATS_NETIF_ADD(ppp->netif, ifoutoctets, (u16_t)tot_len); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutucastpkts); + LINK_STATS_INC(link.xmit); + return ERR_OK; +} + +/* Called by PPP core */ +static err_t pppoe_netif_output(ppp_pcb *ppp, void *ctx, struct pbuf *p, u_short protocol) { + struct pppoe_softc *sc = (struct pppoe_softc *)ctx; + struct pbuf *pb; + u8_t *pl; + err_t err; +#if MIB2_STATS + u16_t tot_len; +#else /* MIB2_STATS */ + LWIP_UNUSED_ARG(ppp); +#endif /* MIB2_STATS */ + + /* @todo: try to use pbuf_header() here! */ + pb = pbuf_alloc(PBUF_LINK, PPPOE_HEADERLEN + sizeof(protocol), PBUF_RAM); + if(!pb) { + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.proterr); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + return ERR_MEM; + } + + pbuf_remove_header(pb, PPPOE_HEADERLEN); + + pl = (u8_t*)pb->payload; + PUTSHORT(protocol, pl); + + pbuf_chain(pb, p); +#if MIB2_STATS + tot_len = pb->tot_len; +#endif /* MIB2_STATS */ + + if( (err = pppoe_xmit(sc, pb)) != ERR_OK) { + LINK_STATS_INC(link.err); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + return err; + } + + MIB2_STATS_NETIF_ADD(ppp->netif, ifoutoctets, tot_len); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutucastpkts); + LINK_STATS_INC(link.xmit); + return ERR_OK; +} + +static err_t +pppoe_destroy(ppp_pcb *ppp, void *ctx) +{ + struct pppoe_softc *sc = (struct pppoe_softc *)ctx; + struct pppoe_softc **copp, *freep; + LWIP_UNUSED_ARG(ppp); + + sys_untimeout(pppoe_timeout, sc); + + /* remove interface from list */ + for (copp = &pppoe_softc_list; (freep = *copp); copp = &freep->next) { + if (freep == sc) { + *copp = freep->next; + break; + } + } + LWIP_MEMPOOL_FREE(PPPOE_IF, sc); + + return ERR_OK; +} + +/* + * Find the interface handling the specified session. + * Note: O(number of sessions open), this is a client-side only, mean + * and lean implementation, so number of open sessions typically should + * be 1. + */ +static struct pppoe_softc* pppoe_find_softc_by_session(u_int session, struct netif *rcvif) { + struct pppoe_softc *sc; + + for (sc = pppoe_softc_list; sc != NULL; sc = sc->next) { + if (sc->sc_state == PPPOE_STATE_SESSION + && sc->sc_session == session + && sc->sc_ethif == rcvif) { + return sc; + } + } + return NULL; +} + +/* Check host unique token passed and return appropriate softc pointer, + * or NULL if token is bogus. */ +static struct pppoe_softc* pppoe_find_softc_by_hunique(u8_t *token, size_t len, struct netif *rcvif) { + struct pppoe_softc *sc, *t; + + if (len != sizeof sc) { + return NULL; + } + MEMCPY(&t, token, len); + + for (sc = pppoe_softc_list; sc != NULL; sc = sc->next) { + if (sc == t) { + break; + } + } + + if (sc == NULL) { + PPPDEBUG(LOG_DEBUG, ("pppoe: alien host unique tag, no session found\n")); + return NULL; + } + + /* should be safe to access *sc now */ + if (sc->sc_state < PPPOE_STATE_PADI_SENT || sc->sc_state >= PPPOE_STATE_SESSION) { + PPPDEBUG(LOG_DEBUG, ("%c%c%"U16_F": host unique tag found, but it belongs to a connection in state %d\n", + sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, sc->sc_state)); + return NULL; + } + if (sc->sc_ethif != rcvif) { + PPPDEBUG(LOG_DEBUG, ("%c%c%"U16_F": wrong interface, not accepting host unique\n", + sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num)); + return NULL; + } + return sc; +} + +/* analyze and handle a single received packet while not in session state */ +void +pppoe_disc_input(struct netif *netif, struct pbuf *pb) +{ + u16_t tag, len, off; + u16_t session, plen; + struct pppoe_softc *sc; +#if PPP_DEBUG + const char *err_msg = NULL; +#endif /* PPP_DEBUG */ + u8_t *ac_cookie; + u16_t ac_cookie_len; +#ifdef PPPOE_SERVER + u8_t *hunique; + size_t hunique_len; +#endif + struct pppoehdr *ph; + struct pppoetag pt; + int err; + struct eth_hdr *ethhdr; + + /* don't do anything if there is not a single PPPoE instance */ + if (pppoe_softc_list == NULL) { + pbuf_free(pb); + return; + } + + pb = pbuf_coalesce(pb, PBUF_RAW); + + ethhdr = (struct eth_hdr *)pb->payload; + + ac_cookie = NULL; + ac_cookie_len = 0; +#ifdef PPPOE_SERVER + hunique = NULL; + hunique_len = 0; +#endif + session = 0; + off = sizeof(struct eth_hdr) + sizeof(struct pppoehdr); + if (pb->len < off) { + PPPDEBUG(LOG_DEBUG, ("pppoe: packet too short: %d\n", pb->len)); + goto done; + } + + ph = (struct pppoehdr *) (ethhdr + 1); + if (ph->vertype != PPPOE_VERTYPE) { + PPPDEBUG(LOG_DEBUG, ("pppoe: unknown version/type packet: 0x%x\n", ph->vertype)); + goto done; + } + session = lwip_ntohs(ph->session); + plen = lwip_ntohs(ph->plen); + + if (plen > (pb->len - off)) { + PPPDEBUG(LOG_DEBUG, ("pppoe: packet content does not fit: data available = %d, packet size = %u\n", + pb->len - off, plen)); + goto done; + } + if(pb->tot_len == pb->len) { + u16_t framelen = off + plen; + if (framelen < pb->len) { + /* ignore trailing garbage */ + pb->tot_len = pb->len = framelen; + } + } + tag = 0; + len = 0; + sc = NULL; + while (off + sizeof(pt) <= pb->len) { + MEMCPY(&pt, (u8_t*)pb->payload + off, sizeof(pt)); + tag = lwip_ntohs(pt.tag); + len = lwip_ntohs(pt.len); + if (off + sizeof(pt) + len > pb->len) { + PPPDEBUG(LOG_DEBUG, ("pppoe: tag 0x%x len 0x%x is too long\n", tag, len)); + goto done; + } + switch (tag) { + case PPPOE_TAG_EOL: + goto breakbreak; + case PPPOE_TAG_SNAME: + break; /* ignored */ + case PPPOE_TAG_ACNAME: + break; /* ignored */ + case PPPOE_TAG_HUNIQUE: + if (sc != NULL) { + break; + } +#ifdef PPPOE_SERVER + hunique = (u8_t*)pb->payload + off + sizeof(pt); + hunique_len = len; +#endif + sc = pppoe_find_softc_by_hunique((u8_t*)pb->payload + off + sizeof(pt), len, netif); + break; + case PPPOE_TAG_ACCOOKIE: + if (ac_cookie == NULL) { + if (len > PPPOE_MAX_AC_COOKIE_LEN) { + PPPDEBUG(LOG_DEBUG, ("pppoe: AC cookie is too long: len = %d, max = %d\n", len, PPPOE_MAX_AC_COOKIE_LEN)); + goto done; + } + ac_cookie = (u8_t*)pb->payload + off + sizeof(pt); + ac_cookie_len = len; + } + break; +#if PPP_DEBUG + case PPPOE_TAG_SNAME_ERR: + err_msg = "SERVICE NAME ERROR"; + break; + case PPPOE_TAG_ACSYS_ERR: + err_msg = "AC SYSTEM ERROR"; + break; + case PPPOE_TAG_GENERIC_ERR: + err_msg = "GENERIC ERROR"; + break; +#endif /* PPP_DEBUG */ + default: + break; + } +#if PPP_DEBUG + if (err_msg != NULL) { + char error_tmp[PPPOE_ERRORSTRING_LEN]; + u16_t error_len = LWIP_MIN(len, sizeof(error_tmp)-1); + strncpy(error_tmp, (char*)pb->payload + off + sizeof(pt), error_len); + error_tmp[error_len] = '\0'; + if (sc) { + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": %s: %s\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err_msg, error_tmp)); + } else { + PPPDEBUG(LOG_DEBUG, ("pppoe: %s: %s\n", err_msg, error_tmp)); + } + } +#endif /* PPP_DEBUG */ + off += sizeof(pt) + len; + } + +breakbreak:; + switch (ph->code) { + case PPPOE_CODE_PADI: +#ifdef PPPOE_SERVER + /* + * got service name, concentrator name, and/or host unique. + * ignore if we have no interfaces with IFF_PASSIVE|IFF_UP. + */ + if (LIST_EMPTY(&pppoe_softc_list)) { + goto done; + } + LIST_FOREACH(sc, &pppoe_softc_list, sc_list) { + if (!(sc->sc_sppp.pp_if.if_flags & IFF_UP)) { + continue; + } + if (!(sc->sc_sppp.pp_if.if_flags & IFF_PASSIVE)) { + continue; + } + if (sc->sc_state == PPPOE_STATE_INITIAL) { + break; + } + } + if (sc == NULL) { + /* PPPDEBUG(LOG_DEBUG, ("pppoe: free passive interface is not found\n")); */ + goto done; + } + if (hunique) { + if (sc->sc_hunique) { + mem_free(sc->sc_hunique); + } + sc->sc_hunique = mem_malloc(hunique_len); + if (sc->sc_hunique == NULL) { + goto done; + } + sc->sc_hunique_len = hunique_len; + MEMCPY(sc->sc_hunique, hunique, hunique_len); + } + MEMCPY(&sc->sc_dest, eh->ether_shost, sizeof sc->sc_dest); + sc->sc_state = PPPOE_STATE_PADO_SENT; + pppoe_send_pado(sc); + break; +#endif /* PPPOE_SERVER */ + case PPPOE_CODE_PADR: +#ifdef PPPOE_SERVER + /* + * get sc from ac_cookie if IFF_PASSIVE + */ + if (ac_cookie == NULL) { + /* be quiet if there is not a single pppoe instance */ + PPPDEBUG(LOG_DEBUG, ("pppoe: received PADR but not includes ac_cookie\n")); + goto done; + } + sc = pppoe_find_softc_by_hunique(ac_cookie, ac_cookie_len, netif); + if (sc == NULL) { + /* be quiet if there is not a single pppoe instance */ + if (!LIST_EMPTY(&pppoe_softc_list)) { + PPPDEBUG(LOG_DEBUG, ("pppoe: received PADR but could not find request for it\n")); + } + goto done; + } + if (sc->sc_state != PPPOE_STATE_PADO_SENT) { + PPPDEBUG(LOG_DEBUG, ("%c%c%"U16_F": received unexpected PADR\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num)); + goto done; + } + if (hunique) { + if (sc->sc_hunique) { + mem_free(sc->sc_hunique); + } + sc->sc_hunique = mem_malloc(hunique_len); + if (sc->sc_hunique == NULL) { + goto done; + } + sc->sc_hunique_len = hunique_len; + MEMCPY(sc->sc_hunique, hunique, hunique_len); + } + pppoe_send_pads(sc); + sc->sc_state = PPPOE_STATE_SESSION; + ppp_start(sc->pcb); /* notify upper layers */ + break; +#else + /* ignore, we are no access concentrator */ + goto done; +#endif /* PPPOE_SERVER */ + case PPPOE_CODE_PADO: + if (sc == NULL) { + /* be quiet if there is not a single pppoe instance */ + if (pppoe_softc_list != NULL) { + PPPDEBUG(LOG_DEBUG, ("pppoe: received PADO but could not find request for it\n")); + } + goto done; + } + if (sc->sc_state != PPPOE_STATE_PADI_SENT) { + PPPDEBUG(LOG_DEBUG, ("%c%c%"U16_F": received unexpected PADO\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num)); + goto done; + } + if (ac_cookie) { + sc->sc_ac_cookie_len = ac_cookie_len; + MEMCPY(sc->sc_ac_cookie, ac_cookie, ac_cookie_len); + } + MEMCPY(&sc->sc_dest, ethhdr->src.addr, sizeof(sc->sc_dest.addr)); + sys_untimeout(pppoe_timeout, sc); + sc->sc_padr_retried = 0; + sc->sc_state = PPPOE_STATE_PADR_SENT; + if ((err = pppoe_send_padr(sc)) != 0) { + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": failed to send PADR, error=%d\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + } + sys_timeout(PPPOE_DISC_TIMEOUT * (1 + sc->sc_padr_retried), pppoe_timeout, sc); + break; + case PPPOE_CODE_PADS: + if (sc == NULL) { + goto done; + } + sc->sc_session = session; + sys_untimeout(pppoe_timeout, sc); + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": session 0x%x connected\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, session)); + sc->sc_state = PPPOE_STATE_SESSION; + ppp_start(sc->pcb); /* notify upper layers */ + break; + case PPPOE_CODE_PADT: + /* Don't disconnect here, we let the LCP Echo/Reply find the fact + * that PPP session is down. Asking the PPP stack to end the session + * require strict checking about the PPP phase to prevent endless + * disconnection loops. + */ +#if 0 /* UNUSED */ + if (sc == NULL) { /* PADT frames are rarely sent with a hunique tag, this is actually almost always true */ + goto done; + } + pppoe_clear_softc(sc, "received PADT"); +#endif /* UNUSED */ + break; + default: + if(sc) { + PPPDEBUG(LOG_DEBUG, ("%c%c%"U16_F": unknown code (0x%"X16_F") session = 0x%"X16_F"\n", + sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, + (u16_t)ph->code, session)); + } else { + PPPDEBUG(LOG_DEBUG, ("pppoe: unknown code (0x%"X16_F") session = 0x%"X16_F"\n", (u16_t)ph->code, session)); + } + break; + } + +done: + pbuf_free(pb); + return; +} + +void +pppoe_data_input(struct netif *netif, struct pbuf *pb) +{ + u16_t session, plen; + struct pppoe_softc *sc; + struct pppoehdr *ph; +#ifdef PPPOE_TERM_UNKNOWN_SESSIONS + u8_t shost[ETHER_ADDR_LEN]; +#endif + +#ifdef PPPOE_TERM_UNKNOWN_SESSIONS + MEMCPY(shost, ((struct eth_hdr *)pb->payload)->src.addr, sizeof(shost)); +#endif + if (pbuf_remove_header(pb, sizeof(struct eth_hdr)) != 0) { + /* bail out */ + PPPDEBUG(LOG_ERR, ("pppoe_data_input: pbuf_remove_header failed\n")); + LINK_STATS_INC(link.lenerr); + goto drop; + } + + if (pb->len < sizeof(*ph)) { + PPPDEBUG(LOG_DEBUG, ("pppoe_data_input: could not get PPPoE header\n")); + goto drop; + } + ph = (struct pppoehdr *)pb->payload; + + if (ph->vertype != PPPOE_VERTYPE) { + PPPDEBUG(LOG_DEBUG, ("pppoe (data): unknown version/type packet: 0x%x\n", ph->vertype)); + goto drop; + } + if (ph->code != 0) { + goto drop; + } + + session = lwip_ntohs(ph->session); + sc = pppoe_find_softc_by_session(session, netif); + if (sc == NULL) { +#ifdef PPPOE_TERM_UNKNOWN_SESSIONS + PPPDEBUG(LOG_DEBUG, ("pppoe: input for unknown session 0x%x, sending PADT\n", session)); + pppoe_send_padt(netif, session, shost); +#endif + goto drop; + } + + plen = lwip_ntohs(ph->plen); + + if (pbuf_remove_header(pb, PPPOE_HEADERLEN) != 0) { + /* bail out */ + PPPDEBUG(LOG_ERR, ("pppoe_data_input: pbuf_remove_header PPPOE_HEADERLEN failed\n")); + LINK_STATS_INC(link.lenerr); + goto drop; + } + + PPPDEBUG(LOG_DEBUG, ("pppoe_data_input: %c%c%"U16_F": pkthdr.len=%d, pppoe.len=%d\n", + sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, + pb->len, plen)); + + if (pb->tot_len < plen) { + goto drop; + } + + /* Dispatch the packet thereby consuming it. */ + ppp_input(sc->pcb, pb); + return; + +drop: + pbuf_free(pb); +} + +static err_t +pppoe_output(struct pppoe_softc *sc, struct pbuf *pb) +{ + struct eth_hdr *ethhdr; + u16_t etype; + err_t res; + + /* make room for Ethernet header - should not fail */ + if (pbuf_add_header(pb, sizeof(struct eth_hdr)) != 0) { + /* bail out */ + PPPDEBUG(LOG_ERR, ("pppoe: %c%c%"U16_F": pppoe_output: could not allocate room for Ethernet header\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num)); + LINK_STATS_INC(link.lenerr); + pbuf_free(pb); + return ERR_BUF; + } + ethhdr = (struct eth_hdr *)pb->payload; + etype = sc->sc_state == PPPOE_STATE_SESSION ? ETHTYPE_PPPOE : ETHTYPE_PPPOEDISC; + ethhdr->type = lwip_htons(etype); + MEMCPY(ðhdr->dest.addr, &sc->sc_dest.addr, sizeof(ethhdr->dest.addr)); + MEMCPY(ðhdr->src.addr, &sc->sc_ethif->hwaddr, sizeof(ethhdr->src.addr)); + + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F" (%x) state=%d, session=0x%x output -> %02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F", len=%d\n", + sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, etype, + sc->sc_state, sc->sc_session, + sc->sc_dest.addr[0], sc->sc_dest.addr[1], sc->sc_dest.addr[2], sc->sc_dest.addr[3], sc->sc_dest.addr[4], sc->sc_dest.addr[5], + pb->tot_len)); + + res = sc->sc_ethif->linkoutput(sc->sc_ethif, pb); + + pbuf_free(pb); + + return res; +} + +static err_t +pppoe_send_padi(struct pppoe_softc *sc) +{ + struct pbuf *pb; + u8_t *p; + int len; +#if PPPOE_SCNAME_SUPPORT + int l1 = 0, l2 = 0; /* XXX: gcc */ +#endif /* PPPOE_SCNAME_SUPPORT */ + + /* calculate length of frame (excluding ethernet header + pppoe header) */ + len = 2 + 2 + 2 + 2 + sizeof sc; /* service name tag is required, host unique is send too */ +#if PPPOE_SCNAME_SUPPORT + if (sc->sc_service_name != NULL) { + l1 = (int)strlen(sc->sc_service_name); + len += l1; + } + if (sc->sc_concentrator_name != NULL) { + l2 = (int)strlen(sc->sc_concentrator_name); + len += 2 + 2 + l2; + } +#endif /* PPPOE_SCNAME_SUPPORT */ + LWIP_ASSERT("sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len <= 0xffff", + sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len <= 0xffff); + + /* allocate a buffer */ + pb = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HEADERLEN + len), PBUF_RAM); + if (!pb) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + + p = (u8_t*)pb->payload; + /* fill in pkt */ + PPPOE_ADD_HEADER(p, PPPOE_CODE_PADI, 0, (u16_t)len); + PPPOE_ADD_16(p, PPPOE_TAG_SNAME); +#if PPPOE_SCNAME_SUPPORT + if (sc->sc_service_name != NULL) { + PPPOE_ADD_16(p, l1); + MEMCPY(p, sc->sc_service_name, l1); + p += l1; + } else +#endif /* PPPOE_SCNAME_SUPPORT */ + { + PPPOE_ADD_16(p, 0); + } +#if PPPOE_SCNAME_SUPPORT + if (sc->sc_concentrator_name != NULL) { + PPPOE_ADD_16(p, PPPOE_TAG_ACNAME); + PPPOE_ADD_16(p, l2); + MEMCPY(p, sc->sc_concentrator_name, l2); + p += l2; + } +#endif /* PPPOE_SCNAME_SUPPORT */ + PPPOE_ADD_16(p, PPPOE_TAG_HUNIQUE); + PPPOE_ADD_16(p, sizeof(sc)); + MEMCPY(p, &sc, sizeof sc); + + /* send pkt */ + return pppoe_output(sc, pb); +} + +static void +pppoe_timeout(void *arg) +{ + u32_t retry_wait; + int err; + struct pppoe_softc *sc = (struct pppoe_softc*)arg; + + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": timeout\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num)); + + switch (sc->sc_state) { + case PPPOE_STATE_PADI_SENT: + /* + * We have two basic ways of retrying: + * - Quick retry mode: try a few times in short sequence + * - Slow retry mode: we already had a connection successfully + * established and will try infinitely (without user + * intervention) + * We only enter slow retry mode if IFF_LINK1 (aka autodial) + * is not set. + */ + if (sc->sc_padi_retried < 0xff) { + sc->sc_padi_retried++; + } + if (!sc->pcb->settings.persist && sc->sc_padi_retried >= PPPOE_DISC_MAXPADI) { +#if 0 + if ((sc->sc_sppp.pp_if.if_flags & IFF_LINK1) == 0) { + /* slow retry mode */ + retry_wait = PPPOE_SLOW_RETRY; + } else +#endif + { + pppoe_abort_connect(sc); + return; + } + } + /* initialize for quick retry mode */ + retry_wait = LWIP_MIN(PPPOE_DISC_TIMEOUT * sc->sc_padi_retried, PPPOE_SLOW_RETRY); + if ((err = pppoe_send_padi(sc)) != 0) { + sc->sc_padi_retried--; + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": failed to transmit PADI, error=%d\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + } + sys_timeout(retry_wait, pppoe_timeout, sc); + break; + + case PPPOE_STATE_PADR_SENT: + sc->sc_padr_retried++; + if (sc->sc_padr_retried >= PPPOE_DISC_MAXPADR) { + MEMCPY(&sc->sc_dest, ethbroadcast.addr, sizeof(sc->sc_dest)); + sc->sc_state = PPPOE_STATE_PADI_SENT; + sc->sc_padr_retried = 0; + if ((err = pppoe_send_padi(sc)) != 0) { + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": failed to send PADI, error=%d\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + } + sys_timeout(PPPOE_DISC_TIMEOUT * (1 + sc->sc_padi_retried), pppoe_timeout, sc); + return; + } + if ((err = pppoe_send_padr(sc)) != 0) { + sc->sc_padr_retried--; + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": failed to send PADR, error=%d\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + } + sys_timeout(PPPOE_DISC_TIMEOUT * (1 + sc->sc_padr_retried), pppoe_timeout, sc); + break; + default: + return; /* all done, work in peace */ + } +} + +/* Start a connection (i.e. initiate discovery phase) */ +static void +pppoe_connect(ppp_pcb *ppp, void *ctx) +{ + err_t err; + struct pppoe_softc *sc = (struct pppoe_softc *)ctx; + lcp_options *lcp_wo; + lcp_options *lcp_ao; +#if PPP_IPV4_SUPPORT && VJ_SUPPORT + ipcp_options *ipcp_wo; + ipcp_options *ipcp_ao; +#endif /* PPP_IPV4_SUPPORT && VJ_SUPPORT */ + + sc->sc_session = 0; + sc->sc_ac_cookie_len = 0; + sc->sc_padi_retried = 0; + sc->sc_padr_retried = 0; + /* changed to real address later */ + MEMCPY(&sc->sc_dest, ethbroadcast.addr, sizeof(sc->sc_dest)); +#ifdef PPPOE_SERVER + /* wait PADI if IFF_PASSIVE */ + if ((sc->sc_sppp.pp_if.if_flags & IFF_PASSIVE)) { + return 0; + } +#endif + + lcp_wo = &ppp->lcp_wantoptions; + lcp_wo->mru = sc->sc_ethif->mtu-PPPOE_HEADERLEN-2; /* two byte PPP protocol discriminator, then IP data */ + lcp_wo->neg_asyncmap = 0; + lcp_wo->neg_pcompression = 0; + lcp_wo->neg_accompression = 0; + lcp_wo->passive = 0; + lcp_wo->silent = 0; + + lcp_ao = &ppp->lcp_allowoptions; + lcp_ao->mru = sc->sc_ethif->mtu-PPPOE_HEADERLEN-2; /* two byte PPP protocol discriminator, then IP data */ + lcp_ao->neg_asyncmap = 0; + lcp_ao->neg_pcompression = 0; + lcp_ao->neg_accompression = 0; + +#if PPP_IPV4_SUPPORT && VJ_SUPPORT + ipcp_wo = &ppp->ipcp_wantoptions; + ipcp_wo->neg_vj = 0; + ipcp_wo->old_vj = 0; + + ipcp_ao = &ppp->ipcp_allowoptions; + ipcp_ao->neg_vj = 0; + ipcp_ao->old_vj = 0; +#endif /* PPP_IPV4_SUPPORT && VJ_SUPPORT */ + + /* save state, in case we fail to send PADI */ + sc->sc_state = PPPOE_STATE_PADI_SENT; + if ((err = pppoe_send_padi(sc)) != 0) { + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": failed to send PADI, error=%d\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err)); + } + sys_timeout(PPPOE_DISC_TIMEOUT, pppoe_timeout, sc); +} + +/* disconnect */ +static void +pppoe_disconnect(ppp_pcb *ppp, void *ctx) +{ + struct pppoe_softc *sc = (struct pppoe_softc *)ctx; + + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": disconnecting\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num)); + if (sc->sc_state == PPPOE_STATE_SESSION) { + pppoe_send_padt(sc->sc_ethif, sc->sc_session, (const u8_t *)&sc->sc_dest); + } + + /* stop any timer, disconnect can be called while initiating is in progress */ + sys_untimeout(pppoe_timeout, sc); + sc->sc_state = PPPOE_STATE_INITIAL; +#ifdef PPPOE_SERVER + if (sc->sc_hunique) { + mem_free(sc->sc_hunique); + sc->sc_hunique = NULL; /* probably not necessary, if state is initial we shouldn't have to access hunique anyway */ + } + sc->sc_hunique_len = 0; /* probably not necessary, if state is initial we shouldn't have to access hunique anyway */ +#endif + ppp_link_end(ppp); /* notify upper layers */ + return; +} + +/* Connection attempt aborted */ +static void +pppoe_abort_connect(struct pppoe_softc *sc) +{ + PPPDEBUG(LOG_DEBUG, ("%c%c%"U16_F": could not establish connection\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num)); + sc->sc_state = PPPOE_STATE_INITIAL; + ppp_link_failed(sc->pcb); /* notify upper layers */ +} + +/* Send a PADR packet */ +static err_t +pppoe_send_padr(struct pppoe_softc *sc) +{ + struct pbuf *pb; + u8_t *p; + size_t len; +#if PPPOE_SCNAME_SUPPORT + size_t l1 = 0; /* XXX: gcc */ +#endif /* PPPOE_SCNAME_SUPPORT */ + + len = 2 + 2 + 2 + 2 + sizeof(sc); /* service name, host unique */ +#if PPPOE_SCNAME_SUPPORT + if (sc->sc_service_name != NULL) { /* service name tag maybe empty */ + l1 = strlen(sc->sc_service_name); + len += l1; + } +#endif /* PPPOE_SCNAME_SUPPORT */ + if (sc->sc_ac_cookie_len > 0) { + len += 2 + 2 + sc->sc_ac_cookie_len; /* AC cookie */ + } + LWIP_ASSERT("sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len <= 0xffff", + sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len <= 0xffff); + pb = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HEADERLEN + len), PBUF_RAM); + if (!pb) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + p = (u8_t*)pb->payload; + PPPOE_ADD_HEADER(p, PPPOE_CODE_PADR, 0, len); + PPPOE_ADD_16(p, PPPOE_TAG_SNAME); +#if PPPOE_SCNAME_SUPPORT + if (sc->sc_service_name != NULL) { + PPPOE_ADD_16(p, l1); + MEMCPY(p, sc->sc_service_name, l1); + p += l1; + } else +#endif /* PPPOE_SCNAME_SUPPORT */ + { + PPPOE_ADD_16(p, 0); + } + if (sc->sc_ac_cookie_len > 0) { + PPPOE_ADD_16(p, PPPOE_TAG_ACCOOKIE); + PPPOE_ADD_16(p, sc->sc_ac_cookie_len); + MEMCPY(p, sc->sc_ac_cookie, sc->sc_ac_cookie_len); + p += sc->sc_ac_cookie_len; + } + PPPOE_ADD_16(p, PPPOE_TAG_HUNIQUE); + PPPOE_ADD_16(p, sizeof(sc)); + MEMCPY(p, &sc, sizeof sc); + + return pppoe_output(sc, pb); +} + +/* send a PADT packet */ +static err_t +pppoe_send_padt(struct netif *outgoing_if, u_int session, const u8_t *dest) +{ + struct pbuf *pb; + struct eth_hdr *ethhdr; + err_t res; + u8_t *p; + + pb = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HEADERLEN), PBUF_RAM); + if (!pb) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + + if (pbuf_add_header(pb, sizeof(struct eth_hdr))) { + PPPDEBUG(LOG_ERR, ("pppoe: pppoe_send_padt: could not allocate room for PPPoE header\n")); + LINK_STATS_INC(link.lenerr); + pbuf_free(pb); + return ERR_BUF; + } + ethhdr = (struct eth_hdr *)pb->payload; + ethhdr->type = PP_HTONS(ETHTYPE_PPPOEDISC); + MEMCPY(ðhdr->dest.addr, dest, sizeof(ethhdr->dest.addr)); + MEMCPY(ðhdr->src.addr, &outgoing_if->hwaddr, sizeof(ethhdr->src.addr)); + + p = (u8_t*)(ethhdr + 1); + PPPOE_ADD_HEADER(p, PPPOE_CODE_PADT, session, 0); + + res = outgoing_if->linkoutput(outgoing_if, pb); + + pbuf_free(pb); + + return res; +} + +#ifdef PPPOE_SERVER +static err_t +pppoe_send_pado(struct pppoe_softc *sc) +{ + struct pbuf *pb; + u8_t *p; + size_t len; + + /* calc length */ + len = 0; + /* include ac_cookie */ + len += 2 + 2 + sizeof(sc); + /* include hunique */ + len += 2 + 2 + sc->sc_hunique_len; + pb = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HEADERLEN + len), PBUF_RAM); + if (!pb) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + p = (u8_t*)pb->payload; + PPPOE_ADD_HEADER(p, PPPOE_CODE_PADO, 0, len); + PPPOE_ADD_16(p, PPPOE_TAG_ACCOOKIE); + PPPOE_ADD_16(p, sizeof(sc)); + MEMCPY(p, &sc, sizeof(sc)); + p += sizeof(sc); + PPPOE_ADD_16(p, PPPOE_TAG_HUNIQUE); + PPPOE_ADD_16(p, sc->sc_hunique_len); + MEMCPY(p, sc->sc_hunique, sc->sc_hunique_len); + return pppoe_output(sc, pb); +} + +static err_t +pppoe_send_pads(struct pppoe_softc *sc) +{ + struct pbuf *pb; + u8_t *p; + size_t len, l1 = 0; /* XXX: gcc */ + + sc->sc_session = mono_time.tv_sec % 0xff + 1; + /* calc length */ + len = 0; + /* include hunique */ + len += 2 + 2 + 2 + 2 + sc->sc_hunique_len; /* service name, host unique*/ + if (sc->sc_service_name != NULL) { /* service name tag maybe empty */ + l1 = strlen(sc->sc_service_name); + len += l1; + } + pb = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HEADERLEN + len), PBUF_RAM); + if (!pb) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + p = (u8_t*)pb->payload; + PPPOE_ADD_HEADER(p, PPPOE_CODE_PADS, sc->sc_session, len); + PPPOE_ADD_16(p, PPPOE_TAG_SNAME); + if (sc->sc_service_name != NULL) { + PPPOE_ADD_16(p, l1); + MEMCPY(p, sc->sc_service_name, l1); + p += l1; + } else { + PPPOE_ADD_16(p, 0); + } + PPPOE_ADD_16(p, PPPOE_TAG_HUNIQUE); + PPPOE_ADD_16(p, sc->sc_hunique_len); + MEMCPY(p, sc->sc_hunique, sc->sc_hunique_len); + return pppoe_output(sc, pb); +} +#endif + +static err_t +pppoe_xmit(struct pppoe_softc *sc, struct pbuf *pb) +{ + u8_t *p; + size_t len; + + len = pb->tot_len; + + /* make room for PPPoE header - should not fail */ + if (pbuf_add_header(pb, PPPOE_HEADERLEN) != 0) { + /* bail out */ + PPPDEBUG(LOG_ERR, ("pppoe: %c%c%"U16_F": pppoe_xmit: could not allocate room for PPPoE header\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num)); + LINK_STATS_INC(link.lenerr); + pbuf_free(pb); + return ERR_BUF; + } + + p = (u8_t*)pb->payload; + PPPOE_ADD_HEADER(p, 0, sc->sc_session, len); + + return pppoe_output(sc, pb); +} + +#if 0 /*def PFIL_HOOKS*/ +static int +pppoe_ifattach_hook(void *arg, struct pbuf **mp, struct netif *ifp, int dir) +{ + struct pppoe_softc *sc; + int s; + + if (mp != (struct pbuf **)PFIL_IFNET_DETACH) { + return 0; + } + + LIST_FOREACH(sc, &pppoe_softc_list, sc_list) { + if (sc->sc_ethif != ifp) { + continue; + } + if (sc->sc_sppp.pp_if.if_flags & IFF_UP) { + sc->sc_sppp.pp_if.if_flags &= ~(IFF_UP|IFF_RUNNING); + PPPDEBUG(LOG_DEBUG, ("%c%c%"U16_F": ethernet interface detached, going down\n", + sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num)); + } + sc->sc_ethif = NULL; + pppoe_clear_softc(sc, "ethernet interface detached"); + } + + return 0; +} +#endif + +#if 0 /* UNUSED */ +static void +pppoe_clear_softc(struct pppoe_softc *sc, const char *message) +{ + LWIP_UNUSED_ARG(message); + + /* stop timer */ + sys_untimeout(pppoe_timeout, sc); + PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": session 0x%x terminated, %s\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, sc->sc_session, message)); + sc->sc_state = PPPOE_STATE_INITIAL; + ppp_link_end(sc->pcb); /* notify upper layers - /!\ dangerous /!\ - see pppoe_disc_input() */ +} +#endif /* UNUSED */ +#endif /* PPP_SUPPORT && PPPOE_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/pppol2tp.c b/middleware/lwip/src/netif/ppp/pppol2tp.c new file mode 100644 index 0000000..6a35233 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/pppol2tp.c @@ -0,0 +1,1159 @@ +/** + * @file + * Network Point to Point Protocol over Layer 2 Tunneling Protocol program file. + * + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +/* + * L2TP Support status: + * + * Supported: + * - L2TPv2 (PPP over L2TP, a.k.a. UDP tunnels) + * - LAC + * + * Not supported: + * - LNS (require PPP server support) + * - L2TPv3 ethernet pseudowires + * - L2TPv3 VLAN pseudowire + * - L2TPv3 PPP pseudowires + * - L2TPv3 IP encapsulation + * - L2TPv3 IP pseudowire + * - L2TP tunnel switching - http://tools.ietf.org/html/draft-ietf-l2tpext-tunnel-switching-08 + * - Multiple tunnels per UDP socket, as well as multiple sessions per tunnel + * - Hidden AVPs + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPPOL2TP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include "lwip/err.h" +#include "lwip/memp.h" +#include "lwip/netif.h" +#include "lwip/udp.h" +#include "lwip/snmp.h" + +#include "netif/ppp/ppp_impl.h" +#include "netif/ppp/lcp.h" +#include "netif/ppp/ipcp.h" +#include "netif/ppp/pppol2tp.h" +#include "netif/ppp/pppcrypt.h" +#include "netif/ppp/magic.h" + +/* Memory pool */ +LWIP_MEMPOOL_DECLARE(PPPOL2TP_PCB, MEMP_NUM_PPPOL2TP_INTERFACES, sizeof(pppol2tp_pcb), "PPPOL2TP_PCB") + +/* callbacks called from PPP core */ +static err_t pppol2tp_write(ppp_pcb *ppp, void *ctx, struct pbuf *p); +static err_t pppol2tp_netif_output(ppp_pcb *ppp, void *ctx, struct pbuf *p, u_short protocol); +static err_t pppol2tp_destroy(ppp_pcb *ppp, void *ctx); /* Destroy a L2TP control block */ +static void pppol2tp_connect(ppp_pcb *ppp, void *ctx); /* Be a LAC, connect to a LNS. */ +static void pppol2tp_disconnect(ppp_pcb *ppp, void *ctx); /* Disconnect */ + + /* Prototypes for procedures local to this file. */ +static void pppol2tp_input(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port); +static void pppol2tp_dispatch_control_packet(pppol2tp_pcb *l2tp, u16_t port, struct pbuf *p, u16_t ns, u16_t nr); +static void pppol2tp_timeout(void *arg); +static void pppol2tp_abort_connect(pppol2tp_pcb *l2tp); +static err_t pppol2tp_send_sccrq(pppol2tp_pcb *l2tp); +static err_t pppol2tp_send_scccn(pppol2tp_pcb *l2tp, u16_t ns); +static err_t pppol2tp_send_icrq(pppol2tp_pcb *l2tp, u16_t ns); +static err_t pppol2tp_send_iccn(pppol2tp_pcb *l2tp, u16_t ns); +static err_t pppol2tp_send_zlb(pppol2tp_pcb *l2tp, u16_t ns, u16_t nr); +static err_t pppol2tp_send_stopccn(pppol2tp_pcb *l2tp, u16_t ns); +static err_t pppol2tp_xmit(pppol2tp_pcb *l2tp, struct pbuf *pb); +static err_t pppol2tp_udp_send(pppol2tp_pcb *l2tp, struct pbuf *pb); + +/* Callbacks structure for PPP core */ +static const struct link_callbacks pppol2tp_callbacks = { + pppol2tp_connect, +#if PPP_SERVER + NULL, +#endif /* PPP_SERVER */ + pppol2tp_disconnect, + pppol2tp_destroy, + pppol2tp_write, + pppol2tp_netif_output, + NULL, + NULL +}; + + +/* Create a new L2TP session. */ +ppp_pcb *pppol2tp_create(struct netif *pppif, + struct netif *netif, const ip_addr_t *ipaddr, u16_t port, + const u8_t *secret, u8_t secret_len, + ppp_link_status_cb_fn link_status_cb, void *ctx_cb) { + ppp_pcb *ppp; + pppol2tp_pcb *l2tp; + struct udp_pcb *udp; +#if !PPPOL2TP_AUTH_SUPPORT + LWIP_UNUSED_ARG(secret); + LWIP_UNUSED_ARG(secret_len); +#endif /* !PPPOL2TP_AUTH_SUPPORT */ + + if (ipaddr == NULL) { + goto ipaddr_check_failed; + } + + l2tp = (pppol2tp_pcb *)LWIP_MEMPOOL_ALLOC(PPPOL2TP_PCB); + if (l2tp == NULL) { + goto memp_malloc_l2tp_failed; + } + + udp = udp_new_ip_type(IP_GET_TYPE(ipaddr)); + if (udp == NULL) { + goto udp_new_failed; + } + udp_recv(udp, pppol2tp_input, l2tp); + + ppp = ppp_new(pppif, &pppol2tp_callbacks, l2tp, link_status_cb, ctx_cb); + if (ppp == NULL) { + goto ppp_new_failed; + } + + memset(l2tp, 0, sizeof(pppol2tp_pcb)); + l2tp->phase = PPPOL2TP_STATE_INITIAL; + l2tp->ppp = ppp; + l2tp->udp = udp; + l2tp->netif = netif; + ip_addr_copy(l2tp->remote_ip, *ipaddr); + l2tp->remote_port = port; +#if PPPOL2TP_AUTH_SUPPORT + l2tp->secret = secret; + l2tp->secret_len = secret_len; +#endif /* PPPOL2TP_AUTH_SUPPORT */ + + return ppp; + +ppp_new_failed: + udp_remove(udp); +udp_new_failed: + LWIP_MEMPOOL_FREE(PPPOL2TP_PCB, l2tp); +memp_malloc_l2tp_failed: +ipaddr_check_failed: + return NULL; +} + +/* Called by PPP core */ +static err_t pppol2tp_write(ppp_pcb *ppp, void *ctx, struct pbuf *p) { + pppol2tp_pcb *l2tp = (pppol2tp_pcb *)ctx; + struct pbuf *ph; /* UDP + L2TP header */ + err_t ret; +#if MIB2_STATS + u16_t tot_len; +#else /* MIB2_STATS */ + LWIP_UNUSED_ARG(ppp); +#endif /* MIB2_STATS */ + + ph = pbuf_alloc(PBUF_TRANSPORT, (u16_t)(PPPOL2TP_OUTPUT_DATA_HEADER_LEN), PBUF_RAM); + if(!ph) { + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.proterr); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + pbuf_free(p); + return ERR_MEM; + } + + pbuf_remove_header(ph, PPPOL2TP_OUTPUT_DATA_HEADER_LEN); /* hide L2TP header */ + pbuf_cat(ph, p); +#if MIB2_STATS + tot_len = ph->tot_len; +#endif /* MIB2_STATS */ + + ret = pppol2tp_xmit(l2tp, ph); + if (ret != ERR_OK) { + LINK_STATS_INC(link.err); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + return ret; + } + + MIB2_STATS_NETIF_ADD(ppp->netif, ifoutoctets, (u16_t)tot_len); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutucastpkts); + LINK_STATS_INC(link.xmit); + return ERR_OK; +} + +/* Called by PPP core */ +static err_t pppol2tp_netif_output(ppp_pcb *ppp, void *ctx, struct pbuf *p, u_short protocol) { + pppol2tp_pcb *l2tp = (pppol2tp_pcb *)ctx; + struct pbuf *pb; + u8_t *pl; + err_t err; +#if MIB2_STATS + u16_t tot_len; +#else /* MIB2_STATS */ + LWIP_UNUSED_ARG(ppp); +#endif /* MIB2_STATS */ + + /* @todo: try to use pbuf_header() here! */ + pb = pbuf_alloc(PBUF_TRANSPORT, PPPOL2TP_OUTPUT_DATA_HEADER_LEN + sizeof(protocol), PBUF_RAM); + if(!pb) { + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.proterr); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + return ERR_MEM; + } + + pbuf_remove_header(pb, PPPOL2TP_OUTPUT_DATA_HEADER_LEN); + + pl = (u8_t*)pb->payload; + PUTSHORT(protocol, pl); + + pbuf_chain(pb, p); +#if MIB2_STATS + tot_len = pb->tot_len; +#endif /* MIB2_STATS */ + + if( (err = pppol2tp_xmit(l2tp, pb)) != ERR_OK) { + LINK_STATS_INC(link.err); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + return err; + } + + MIB2_STATS_NETIF_ADD(ppp->netif, ifoutoctets, tot_len); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutucastpkts); + LINK_STATS_INC(link.xmit); + return ERR_OK; +} + +/* Destroy a L2TP control block */ +static err_t pppol2tp_destroy(ppp_pcb *ppp, void *ctx) { + pppol2tp_pcb *l2tp = (pppol2tp_pcb *)ctx; + LWIP_UNUSED_ARG(ppp); + + sys_untimeout(pppol2tp_timeout, l2tp); + udp_remove(l2tp->udp); + LWIP_MEMPOOL_FREE(PPPOL2TP_PCB, l2tp); + return ERR_OK; +} + +/* Be a LAC, connect to a LNS. */ +static void pppol2tp_connect(ppp_pcb *ppp, void *ctx) { + err_t err; + pppol2tp_pcb *l2tp = (pppol2tp_pcb *)ctx; + lcp_options *lcp_wo; + lcp_options *lcp_ao; +#if PPP_IPV4_SUPPORT && VJ_SUPPORT + ipcp_options *ipcp_wo; + ipcp_options *ipcp_ao; +#endif /* PPP_IPV4_SUPPORT && VJ_SUPPORT */ + + l2tp->tunnel_port = l2tp->remote_port; + l2tp->our_ns = 0; + l2tp->peer_nr = 0; + l2tp->peer_ns = 0; + l2tp->source_tunnel_id = 0; + l2tp->remote_tunnel_id = 0; + l2tp->source_session_id = 0; + l2tp->remote_session_id = 0; + /* l2tp->*_retried are cleared when used */ + + lcp_wo = &ppp->lcp_wantoptions; + lcp_wo->mru = PPPOL2TP_DEFMRU; + lcp_wo->neg_asyncmap = 0; + lcp_wo->neg_pcompression = 0; + lcp_wo->neg_accompression = 0; + lcp_wo->passive = 0; + lcp_wo->silent = 0; + + lcp_ao = &ppp->lcp_allowoptions; + lcp_ao->mru = PPPOL2TP_DEFMRU; + lcp_ao->neg_asyncmap = 0; + lcp_ao->neg_pcompression = 0; + lcp_ao->neg_accompression = 0; + +#if PPP_IPV4_SUPPORT && VJ_SUPPORT + ipcp_wo = &ppp->ipcp_wantoptions; + ipcp_wo->neg_vj = 0; + ipcp_wo->old_vj = 0; + + ipcp_ao = &ppp->ipcp_allowoptions; + ipcp_ao->neg_vj = 0; + ipcp_ao->old_vj = 0; +#endif /* PPP_IPV4_SUPPORT && VJ_SUPPORT */ + + /* Listen to a random source port, we need to do that instead of using udp_connect() + * because the L2TP LNS might answer with its own random source port (!= 1701) + */ +#if LWIP_IPV6 + if (IP_IS_V6_VAL(l2tp->udp->local_ip)) { + udp_bind(l2tp->udp, IP6_ADDR_ANY, 0); + } else +#endif /* LWIP_IPV6 */ + udp_bind(l2tp->udp, IP_ADDR_ANY, 0); + +#if PPPOL2TP_AUTH_SUPPORT + /* Generate random vector */ + if (l2tp->secret != NULL) { + magic_random_bytes(l2tp->secret_rv, sizeof(l2tp->secret_rv)); + } +#endif /* PPPOL2TP_AUTH_SUPPORT */ + + do { + l2tp->remote_tunnel_id = magic(); + } while(l2tp->remote_tunnel_id == 0); + /* save state, in case we fail to send SCCRQ */ + l2tp->sccrq_retried = 0; + l2tp->phase = PPPOL2TP_STATE_SCCRQ_SENT; + if ((err = pppol2tp_send_sccrq(l2tp)) != 0) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: failed to send SCCRQ, error=%d\n", err)); + } + sys_timeout(PPPOL2TP_CONTROL_TIMEOUT, pppol2tp_timeout, l2tp); +} + +/* Disconnect */ +static void pppol2tp_disconnect(ppp_pcb *ppp, void *ctx) { + pppol2tp_pcb *l2tp = (pppol2tp_pcb *)ctx; + + l2tp->our_ns++; + pppol2tp_send_stopccn(l2tp, l2tp->our_ns); + + /* stop any timer, disconnect can be called while initiating is in progress */ + sys_untimeout(pppol2tp_timeout, l2tp); + l2tp->phase = PPPOL2TP_STATE_INITIAL; + ppp_link_end(ppp); /* notify upper layers */ +} + +/* UDP Callback for incoming IPv4 L2TP frames */ +static void pppol2tp_input(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) { + pppol2tp_pcb *l2tp = (pppol2tp_pcb*)arg; + u16_t hflags, hlen, len=0, tunnel_id=0, session_id=0, ns=0, nr=0, offset=0; + u8_t *inp; + LWIP_UNUSED_ARG(pcb); + + /* we can't unbound a UDP pcb, thus we can still receive UDP frames after the link is closed */ + if (l2tp->phase < PPPOL2TP_STATE_SCCRQ_SENT) { + goto free_and_return; + } + + if (!ip_addr_eq(&l2tp->remote_ip, addr)) { + goto free_and_return; + } + + /* discard packet if port mismatch, but only if we received a SCCRP */ + if (l2tp->phase > PPPOL2TP_STATE_SCCRQ_SENT && l2tp->tunnel_port != port) { + goto free_and_return; + } + + /* printf("-----------\nL2TP INPUT, %d\n", p->len); */ + + /* L2TP header */ + if (p->len < sizeof(hflags) + sizeof(tunnel_id) + sizeof(session_id) ) { + goto packet_too_short; + } + + inp = (u8_t*)p->payload; + GETSHORT(hflags, inp); + + if (hflags & PPPOL2TP_HEADERFLAG_CONTROL) { + /* check mandatory flags for a control packet */ + if ( (hflags & PPPOL2TP_HEADERFLAG_CONTROL_MANDATORY) != PPPOL2TP_HEADERFLAG_CONTROL_MANDATORY ) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: mandatory header flags for control packet not set\n")); + goto free_and_return; + } + /* check forbidden flags for a control packet */ + if (hflags & PPPOL2TP_HEADERFLAG_CONTROL_FORBIDDEN) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: forbidden header flags for control packet found\n")); + goto free_and_return; + } + } else { + /* check mandatory flags for a data packet */ + if ( (hflags & PPPOL2TP_HEADERFLAG_DATA_MANDATORY) != PPPOL2TP_HEADERFLAG_DATA_MANDATORY) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: mandatory header flags for data packet not set\n")); + goto free_and_return; + } + } + + /* Expected header size */ + hlen = sizeof(hflags) + sizeof(tunnel_id) + sizeof(session_id); + if (hflags & PPPOL2TP_HEADERFLAG_LENGTH) { + hlen += sizeof(len); + } + if (hflags & PPPOL2TP_HEADERFLAG_SEQUENCE) { + hlen += sizeof(ns) + sizeof(nr); + } + if (hflags & PPPOL2TP_HEADERFLAG_OFFSET) { + hlen += sizeof(offset); + } + if (p->len < hlen) { + goto packet_too_short; + } + + if (hflags & PPPOL2TP_HEADERFLAG_LENGTH) { + GETSHORT(len, inp); + if (p->len < len || len < hlen) { + goto packet_too_short; + } + } + GETSHORT(tunnel_id, inp); + GETSHORT(session_id, inp); + if (hflags & PPPOL2TP_HEADERFLAG_SEQUENCE) { + GETSHORT(ns, inp); + GETSHORT(nr, inp); + } + if (hflags & PPPOL2TP_HEADERFLAG_OFFSET) { + GETSHORT(offset, inp) + if (offset > 4096) { /* don't be fooled with large offset which might overflow hlen */ + PPPDEBUG(LOG_DEBUG, ("pppol2tp: strange packet received, offset=%d\n", offset)); + goto free_and_return; + } + hlen += offset; + if (p->len < hlen) { + goto packet_too_short; + } + INCPTR(offset, inp); + } + + /* printf("HLEN = %d\n", hlen); */ + + /* skip L2TP header */ + if (pbuf_remove_header(p, hlen) != 0) { + goto free_and_return; + } + + /* printf("LEN=%d, TUNNEL_ID=%d, SESSION_ID=%d, NS=%d, NR=%d, OFFSET=%d\n", len, tunnel_id, session_id, ns, nr, offset); */ + PPPDEBUG(LOG_DEBUG, ("pppol2tp: input packet, len=%"U16_F", tunnel=%"U16_F", session=%"U16_F", ns=%"U16_F", nr=%"U16_F"\n", + len, tunnel_id, session_id, ns, nr)); + + /* Control packet */ + if (hflags & PPPOL2TP_HEADERFLAG_CONTROL) { + pppol2tp_dispatch_control_packet(l2tp, port, p, ns, nr); + goto free_and_return; + } + + /* Data packet */ + if(l2tp->phase != PPPOL2TP_STATE_DATA) { + goto free_and_return; + } + if(tunnel_id != l2tp->remote_tunnel_id) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: tunnel ID mismatch, assigned=%d, received=%d\n", l2tp->remote_tunnel_id, tunnel_id)); + goto free_and_return; + } + if(session_id != l2tp->remote_session_id) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: session ID mismatch, assigned=%d, received=%d\n", l2tp->remote_session_id, session_id)); + goto free_and_return; + } + /* + * skip address & flags if necessary + * + * RFC 2661 does not specify whether the PPP frame in the L2TP payload should + * have a HDLC header or not. We handle both cases for compatibility. + */ + if (p->len >= 2) { + GETSHORT(hflags, inp); + if (hflags == 0xff03) { + pbuf_remove_header(p, 2); + } + } + /* Dispatch the packet thereby consuming it. */ + ppp_input(l2tp->ppp, p); + return; + +packet_too_short: + PPPDEBUG(LOG_DEBUG, ("pppol2tp: packet too short: %d\n", p->len)); +free_and_return: + pbuf_free(p); +} + +/* L2TP Control packet entry point */ +static void pppol2tp_dispatch_control_packet(pppol2tp_pcb *l2tp, u16_t port, struct pbuf *p, u16_t ns, u16_t nr) { + u8_t *inp; + u16_t avplen, avpflags, vendorid, attributetype, messagetype=0; + err_t err; +#if PPPOL2TP_AUTH_SUPPORT + lwip_md5_context md5_ctx; + u8_t md5_hash[16]; + u8_t challenge_id = 0; +#endif /* PPPOL2TP_AUTH_SUPPORT */ + + /* printf("L2TP CTRL INPUT, ns=%d, nr=%d, len=%d\n", ns, nr, p->len); */ + + /* Drop unexpected packet */ + if (ns != l2tp->peer_ns) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: drop unexpected packet: received NS=%d, expected NS=%d\n", ns, l2tp->peer_ns)); + /* + * In order to ensure that all messages are acknowledged properly + * (particularly in the case of a lost ZLB ACK message), receipt + * of duplicate messages MUST be acknowledged. + * + * In this very special case we Ack a packet we previously received. + * Therefore our NS is the NR we just received. And our NR is the + * NS we just received plus one. + */ + if ((s16_t)(ns - l2tp->peer_ns) < 0) { + pppol2tp_send_zlb(l2tp, nr, ns+1); + } + return; + } + + l2tp->peer_nr = nr; + + /* Handle the special case of the ICCN acknowledge */ + if (l2tp->phase == PPPOL2TP_STATE_ICCN_SENT && (s16_t)(l2tp->peer_nr - l2tp->our_ns) > 0) { + l2tp->phase = PPPOL2TP_STATE_DATA; + sys_untimeout(pppol2tp_timeout, l2tp); + ppp_start(l2tp->ppp); /* notify upper layers */ + } + + /* ZLB packets */ + if (p->tot_len == 0) { + return; + } + /* A ZLB packet does not consume a NS slot thus we don't record the NS value for ZLB packets */ + l2tp->peer_ns = ns+1; + + p = pbuf_coalesce(p, PBUF_RAW); + inp = (u8_t*)p->payload; + /* Decode AVPs */ + while (p->len > 0) { + if (p->len < sizeof(avpflags) + sizeof(vendorid) + sizeof(attributetype) ) { + goto packet_too_short; + } + GETSHORT(avpflags, inp); + avplen = avpflags & PPPOL2TP_AVPHEADERFLAG_LENGTHMASK; + /* printf("AVPLEN = %d\n", avplen); */ + if (p->len < avplen || avplen < sizeof(avpflags) + sizeof(vendorid) + sizeof(attributetype)) { + goto packet_too_short; + } + GETSHORT(vendorid, inp); + GETSHORT(attributetype, inp); + avplen -= sizeof(avpflags) + sizeof(vendorid) + sizeof(attributetype); + + /* Message type must be the first AVP */ + if (messagetype == 0) { + if (attributetype != 0 || vendorid != 0 || avplen != sizeof(messagetype) ) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: message type must be the first AVP\n")); + return; + } + GETSHORT(messagetype, inp); + /* printf("Message type = %d\n", messagetype); */ + switch(messagetype) { + /* Start Control Connection Reply */ + case PPPOL2TP_MESSAGETYPE_SCCRP: + /* Only accept SCCRP packet if we sent a SCCRQ */ + if (l2tp->phase != PPPOL2TP_STATE_SCCRQ_SENT) { + goto send_zlb; + } + break; + /* Incoming Call Reply */ + case PPPOL2TP_MESSAGETYPE_ICRP: + /* Only accept ICRP packet if we sent a IRCQ */ + if (l2tp->phase != PPPOL2TP_STATE_ICRQ_SENT) { + goto send_zlb; + } + break; + /* Stop Control Connection Notification */ + case PPPOL2TP_MESSAGETYPE_STOPCCN: + pppol2tp_send_zlb(l2tp, l2tp->our_ns+1, l2tp->peer_ns); /* Ack the StopCCN before we switch to down state */ + if (l2tp->phase < PPPOL2TP_STATE_DATA) { + pppol2tp_abort_connect(l2tp); + } else if (l2tp->phase == PPPOL2TP_STATE_DATA) { + /* Don't disconnect here, we let the LCP Echo/Reply find the fact + * that PPP session is down. Asking the PPP stack to end the session + * require strict checking about the PPP phase to prevent endless + * disconnection loops. + */ + } + return; + default: + break; + } + goto nextavp; + } + + /* Skip proprietary L2TP extensions */ + if (vendorid != 0) { + goto skipavp; + } + + switch (messagetype) { + /* Start Control Connection Reply */ + case PPPOL2TP_MESSAGETYPE_SCCRP: + switch (attributetype) { + case PPPOL2TP_AVPTYPE_TUNNELID: + if (avplen != sizeof(l2tp->source_tunnel_id) ) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: AVP Assign tunnel ID length check failed\n")); + return; + } + GETSHORT(l2tp->source_tunnel_id, inp); + PPPDEBUG(LOG_DEBUG, ("pppol2tp: Assigned tunnel ID %"U16_F"\n", l2tp->source_tunnel_id)); + goto nextavp; +#if PPPOL2TP_AUTH_SUPPORT + case PPPOL2TP_AVPTYPE_CHALLENGE: + if (avplen == 0) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: Challenge length check failed\n")); + return; + } + if (l2tp->secret == NULL) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: Received challenge from peer and no secret key available\n")); + pppol2tp_abort_connect(l2tp); + return; + } + /* Generate hash of ID, secret, challenge */ + lwip_md5_init(&md5_ctx); + lwip_md5_starts(&md5_ctx); + challenge_id = PPPOL2TP_MESSAGETYPE_SCCCN; + lwip_md5_update(&md5_ctx, &challenge_id, 1); + lwip_md5_update(&md5_ctx, l2tp->secret, l2tp->secret_len); + lwip_md5_update(&md5_ctx, inp, avplen); + lwip_md5_finish(&md5_ctx, l2tp->challenge_hash); + lwip_md5_free(&md5_ctx); + l2tp->send_challenge = 1; + goto skipavp; + case PPPOL2TP_AVPTYPE_CHALLENGERESPONSE: + if (avplen != PPPOL2TP_AVPTYPE_CHALLENGERESPONSE_SIZE) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: AVP Challenge Response length check failed\n")); + return; + } + /* Generate hash of ID, secret, challenge */ + lwip_md5_init(&md5_ctx); + lwip_md5_starts(&md5_ctx); + challenge_id = PPPOL2TP_MESSAGETYPE_SCCRP; + lwip_md5_update(&md5_ctx, &challenge_id, 1); + lwip_md5_update(&md5_ctx, l2tp->secret, l2tp->secret_len); + lwip_md5_update(&md5_ctx, l2tp->secret_rv, sizeof(l2tp->secret_rv)); + lwip_md5_finish(&md5_ctx, md5_hash); + lwip_md5_free(&md5_ctx); + if ( memcmp(inp, md5_hash, sizeof(md5_hash)) ) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: Received challenge response from peer and secret key do not match\n")); + pppol2tp_abort_connect(l2tp); + return; + } + goto skipavp; +#endif /* PPPOL2TP_AUTH_SUPPORT */ + default: + break; + } + break; + /* Incoming Call Reply */ + case PPPOL2TP_MESSAGETYPE_ICRP: + switch (attributetype) { + case PPPOL2TP_AVPTYPE_SESSIONID: + if (avplen != sizeof(l2tp->source_session_id) ) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: AVP Assign session ID length check failed\n")); + return; + } + GETSHORT(l2tp->source_session_id, inp); + PPPDEBUG(LOG_DEBUG, ("pppol2tp: Assigned session ID %"U16_F"\n", l2tp->source_session_id)); + goto nextavp; + default: + break; + } + break; + default: + break; + } + +skipavp: + INCPTR(avplen, inp); +nextavp: + /* printf("AVP Found, vendor=%d, attribute=%d, len=%d\n", vendorid, attributetype, avplen); */ + /* next AVP */ + if (pbuf_remove_header(p, avplen + sizeof(avpflags) + sizeof(vendorid) + sizeof(attributetype)) != 0) { + return; + } + } + + switch(messagetype) { + /* Start Control Connection Reply */ + case PPPOL2TP_MESSAGETYPE_SCCRP: + do { + l2tp->remote_session_id = magic(); + } while(l2tp->remote_session_id == 0); + l2tp->tunnel_port = port; /* LNS server might have chosen its own local port */ + l2tp->icrq_retried = 0; + l2tp->phase = PPPOL2TP_STATE_ICRQ_SENT; + l2tp->our_ns++; + if ((err = pppol2tp_send_scccn(l2tp, l2tp->our_ns)) != 0) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: failed to send SCCCN, error=%d\n", err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + } + l2tp->our_ns++; + if ((err = pppol2tp_send_icrq(l2tp, l2tp->our_ns)) != 0) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: failed to send ICRQ, error=%d\n", err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + } + sys_untimeout(pppol2tp_timeout, l2tp); + sys_timeout(PPPOL2TP_CONTROL_TIMEOUT, pppol2tp_timeout, l2tp); + break; + /* Incoming Call Reply */ + case PPPOL2TP_MESSAGETYPE_ICRP: + l2tp->iccn_retried = 0; + l2tp->phase = PPPOL2TP_STATE_ICCN_SENT; + l2tp->our_ns++; + if ((err = pppol2tp_send_iccn(l2tp, l2tp->our_ns)) != 0) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: failed to send ICCN, error=%d\n", err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + } + sys_untimeout(pppol2tp_timeout, l2tp); + sys_timeout(PPPOL2TP_CONTROL_TIMEOUT, pppol2tp_timeout, l2tp); + break; + /* Unhandled packet, send ZLB ACK */ + default: + goto send_zlb; + } + return; + +send_zlb: + pppol2tp_send_zlb(l2tp, l2tp->our_ns+1, l2tp->peer_ns); + return; +packet_too_short: + PPPDEBUG(LOG_DEBUG, ("pppol2tp: packet too short: %d\n", p->len)); +} + +/* L2TP Timeout handler */ +static void pppol2tp_timeout(void *arg) { + pppol2tp_pcb *l2tp = (pppol2tp_pcb*)arg; + err_t err; + u32_t retry_wait; + + PPPDEBUG(LOG_DEBUG, ("pppol2tp: timeout\n")); + + switch (l2tp->phase) { + case PPPOL2TP_STATE_SCCRQ_SENT: + /* backoff wait */ + if (l2tp->sccrq_retried < 0xff) { + l2tp->sccrq_retried++; + } + if (!l2tp->ppp->settings.persist && l2tp->sccrq_retried >= PPPOL2TP_MAXSCCRQ) { + pppol2tp_abort_connect(l2tp); + return; + } + retry_wait = LWIP_MIN(PPPOL2TP_CONTROL_TIMEOUT * l2tp->sccrq_retried, PPPOL2TP_SLOW_RETRY); + PPPDEBUG(LOG_DEBUG, ("pppol2tp: sccrq_retried=%d\n", l2tp->sccrq_retried)); + if ((err = pppol2tp_send_sccrq(l2tp)) != 0) { + l2tp->sccrq_retried--; + PPPDEBUG(LOG_DEBUG, ("pppol2tp: failed to send SCCRQ, error=%d\n", err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + } + sys_timeout(retry_wait, pppol2tp_timeout, l2tp); + break; + + case PPPOL2TP_STATE_ICRQ_SENT: + l2tp->icrq_retried++; + if (l2tp->icrq_retried >= PPPOL2TP_MAXICRQ) { + pppol2tp_abort_connect(l2tp); + return; + } + PPPDEBUG(LOG_DEBUG, ("pppol2tp: icrq_retried=%d\n", l2tp->icrq_retried)); + if ((s16_t)(l2tp->peer_nr - l2tp->our_ns) < 0) { /* the SCCCN was not acknowledged */ + if ((err = pppol2tp_send_scccn(l2tp, l2tp->our_ns -1)) != 0) { + l2tp->icrq_retried--; + PPPDEBUG(LOG_DEBUG, ("pppol2tp: failed to send SCCCN, error=%d\n", err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + sys_timeout(PPPOL2TP_CONTROL_TIMEOUT, pppol2tp_timeout, l2tp); + break; + } + } + if ((err = pppol2tp_send_icrq(l2tp, l2tp->our_ns)) != 0) { + l2tp->icrq_retried--; + PPPDEBUG(LOG_DEBUG, ("pppol2tp: failed to send ICRQ, error=%d\n", err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + } + sys_timeout(PPPOL2TP_CONTROL_TIMEOUT, pppol2tp_timeout, l2tp); + break; + + case PPPOL2TP_STATE_ICCN_SENT: + l2tp->iccn_retried++; + if (l2tp->iccn_retried >= PPPOL2TP_MAXICCN) { + pppol2tp_abort_connect(l2tp); + return; + } + PPPDEBUG(LOG_DEBUG, ("pppol2tp: iccn_retried=%d\n", l2tp->iccn_retried)); + if ((err = pppol2tp_send_iccn(l2tp, l2tp->our_ns)) != 0) { + l2tp->iccn_retried--; + PPPDEBUG(LOG_DEBUG, ("pppol2tp: failed to send ICCN, error=%d\n", err)); + LWIP_UNUSED_ARG(err); /* if PPPDEBUG is disabled */ + } + sys_timeout(PPPOL2TP_CONTROL_TIMEOUT, pppol2tp_timeout, l2tp); + break; + + default: + return; /* all done, work in peace */ + } +} + +/* Connection attempt aborted */ +static void pppol2tp_abort_connect(pppol2tp_pcb *l2tp) { + PPPDEBUG(LOG_DEBUG, ("pppol2tp: could not establish connection\n")); + l2tp->phase = PPPOL2TP_STATE_INITIAL; + ppp_link_failed(l2tp->ppp); /* notify upper layers */ +} + +/* Initiate a new tunnel */ +static err_t pppol2tp_send_sccrq(pppol2tp_pcb *l2tp) { + struct pbuf *pb; + u8_t *p; + u16_t len; + + /* calculate UDP packet length */ + len = 12 +8 +8 +10 +10 +6+sizeof(PPPOL2TP_HOSTNAME)-1 +6+sizeof(PPPOL2TP_VENDORNAME)-1 +8 +8; +#if PPPOL2TP_AUTH_SUPPORT + if (l2tp->secret != NULL) { + len += 6 + sizeof(l2tp->secret_rv); + } +#endif /* PPPOL2TP_AUTH_SUPPORT */ + + /* allocate a buffer */ + pb = pbuf_alloc(PBUF_TRANSPORT, len, PBUF_RAM); + if (pb == NULL) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + + p = (u8_t*)pb->payload; + /* fill in pkt */ + /* L2TP control header */ + PUTSHORT(PPPOL2TP_HEADERFLAG_CONTROL_MANDATORY, p); + PUTSHORT(len, p); /* Length */ + PUTSHORT(0, p); /* Tunnel Id */ + PUTSHORT(0, p); /* Session Id */ + PUTSHORT(0, p); /* NS Sequence number - to peer */ + PUTSHORT(0, p); /* NR Sequence number - expected for peer */ + + /* AVP - Message type */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_MESSAGE, p); /* Attribute type: Message Type */ + PUTSHORT(PPPOL2TP_MESSAGETYPE_SCCRQ, p); /* Attribute value: Message type: SCCRQ */ + + /* AVP - L2TP Version */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_VERSION, p); /* Attribute type: Version */ + PUTSHORT(PPPOL2TP_VERSION, p); /* Attribute value: L2TP Version */ + + /* AVP - Framing capabilities */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 10, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_FRAMINGCAPABILITIES, p); /* Attribute type: Framing capabilities */ + PUTLONG(PPPOL2TP_FRAMINGCAPABILITIES, p); /* Attribute value: Framing capabilities */ + + /* AVP - Bearer capabilities */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 10, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_BEARERCAPABILITIES, p); /* Attribute type: Bearer capabilities */ + PUTLONG(PPPOL2TP_BEARERCAPABILITIES, p); /* Attribute value: Bearer capabilities */ + + /* AVP - Host name */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 6+sizeof(PPPOL2TP_HOSTNAME)-1, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_HOSTNAME, p); /* Attribute type: Hostname */ + MEMCPY(p, PPPOL2TP_HOSTNAME, sizeof(PPPOL2TP_HOSTNAME)-1); /* Attribute value: Hostname */ + INCPTR(sizeof(PPPOL2TP_HOSTNAME)-1, p); + + /* AVP - Vendor name */ + PUTSHORT(6+sizeof(PPPOL2TP_VENDORNAME)-1, p); /* len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_VENDORNAME, p); /* Attribute type: Vendor name */ + MEMCPY(p, PPPOL2TP_VENDORNAME, sizeof(PPPOL2TP_VENDORNAME)-1); /* Attribute value: Vendor name */ + INCPTR(sizeof(PPPOL2TP_VENDORNAME)-1, p); + + /* AVP - Assign tunnel ID */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_TUNNELID, p); /* Attribute type: Tunnel ID */ + PUTSHORT(l2tp->remote_tunnel_id, p); /* Attribute value: Tunnel ID */ + + /* AVP - Receive window size */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_RECEIVEWINDOWSIZE, p); /* Attribute type: Receive window size */ + PUTSHORT(PPPOL2TP_RECEIVEWINDOWSIZE, p); /* Attribute value: Receive window size */ + +#if PPPOL2TP_AUTH_SUPPORT + /* AVP - Challenge */ + if (l2tp->secret != NULL) { + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 6 + sizeof(l2tp->secret_rv), p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_CHALLENGE, p); /* Attribute type: Challenge */ + MEMCPY(p, l2tp->secret_rv, sizeof(l2tp->secret_rv)); /* Attribute value: Random vector */ + INCPTR(sizeof(l2tp->secret_rv), p); + } +#endif /* PPPOL2TP_AUTH_SUPPORT */ + + return pppol2tp_udp_send(l2tp, pb); +} + +/* Complete tunnel establishment */ +static err_t pppol2tp_send_scccn(pppol2tp_pcb *l2tp, u16_t ns) { + struct pbuf *pb; + u8_t *p; + u16_t len; + + /* calculate UDP packet length */ + len = 12 +8; +#if PPPOL2TP_AUTH_SUPPORT + if (l2tp->send_challenge) { + len += 6 + sizeof(l2tp->challenge_hash); + } +#endif /* PPPOL2TP_AUTH_SUPPORT */ + + /* allocate a buffer */ + pb = pbuf_alloc(PBUF_TRANSPORT, len, PBUF_RAM); + if (pb == NULL) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + + p = (u8_t*)pb->payload; + /* fill in pkt */ + /* L2TP control header */ + PUTSHORT(PPPOL2TP_HEADERFLAG_CONTROL_MANDATORY, p); + PUTSHORT(len, p); /* Length */ + PUTSHORT(l2tp->source_tunnel_id, p); /* Tunnel Id */ + PUTSHORT(0, p); /* Session Id */ + PUTSHORT(ns, p); /* NS Sequence number - to peer */ + PUTSHORT(l2tp->peer_ns, p); /* NR Sequence number - expected for peer */ + + /* AVP - Message type */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_MESSAGE, p); /* Attribute type: Message Type */ + PUTSHORT(PPPOL2TP_MESSAGETYPE_SCCCN, p); /* Attribute value: Message type: SCCCN */ + +#if PPPOL2TP_AUTH_SUPPORT + /* AVP - Challenge response */ + if (l2tp->send_challenge) { + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 6 + sizeof(l2tp->challenge_hash), p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_CHALLENGERESPONSE, p); /* Attribute type: Challenge response */ + MEMCPY(p, l2tp->challenge_hash, sizeof(l2tp->challenge_hash)); /* Attribute value: Computed challenge */ + INCPTR(sizeof(l2tp->challenge_hash), p); + } +#endif /* PPPOL2TP_AUTH_SUPPORT */ + + return pppol2tp_udp_send(l2tp, pb); +} + +/* Initiate a new session */ +static err_t pppol2tp_send_icrq(pppol2tp_pcb *l2tp, u16_t ns) { + struct pbuf *pb; + u8_t *p; + u16_t len; + u32_t serialnumber; + + /* calculate UDP packet length */ + len = 12 +8 +8 +10; + + /* allocate a buffer */ + pb = pbuf_alloc(PBUF_TRANSPORT, len, PBUF_RAM); + if (pb == NULL) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + + p = (u8_t*)pb->payload; + /* fill in pkt */ + /* L2TP control header */ + PUTSHORT(PPPOL2TP_HEADERFLAG_CONTROL_MANDATORY, p); + PUTSHORT(len, p); /* Length */ + PUTSHORT(l2tp->source_tunnel_id, p); /* Tunnel Id */ + PUTSHORT(0, p); /* Session Id */ + PUTSHORT(ns, p); /* NS Sequence number - to peer */ + PUTSHORT(l2tp->peer_ns, p); /* NR Sequence number - expected for peer */ + + /* AVP - Message type */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_MESSAGE, p); /* Attribute type: Message Type */ + PUTSHORT(PPPOL2TP_MESSAGETYPE_ICRQ, p); /* Attribute value: Message type: ICRQ */ + + /* AVP - Assign session ID */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_SESSIONID, p); /* Attribute type: Session ID */ + PUTSHORT(l2tp->remote_session_id, p); /* Attribute value: Session ID */ + + /* AVP - Call Serial Number */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 10, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_CALLSERIALNUMBER, p); /* Attribute type: Serial number */ + serialnumber = magic(); + PUTLONG(serialnumber, p); /* Attribute value: Serial number */ + + return pppol2tp_udp_send(l2tp, pb); +} + +/* Complete tunnel establishment */ +static err_t pppol2tp_send_iccn(pppol2tp_pcb *l2tp, u16_t ns) { + struct pbuf *pb; + u8_t *p; + u16_t len; + + /* calculate UDP packet length */ + len = 12 +8 +10 +10; + + /* allocate a buffer */ + pb = pbuf_alloc(PBUF_TRANSPORT, len, PBUF_RAM); + if (pb == NULL) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + + p = (u8_t*)pb->payload; + /* fill in pkt */ + /* L2TP control header */ + PUTSHORT(PPPOL2TP_HEADERFLAG_CONTROL_MANDATORY, p); + PUTSHORT(len, p); /* Length */ + PUTSHORT(l2tp->source_tunnel_id, p); /* Tunnel Id */ + PUTSHORT(l2tp->source_session_id, p); /* Session Id */ + PUTSHORT(ns, p); /* NS Sequence number - to peer */ + PUTSHORT(l2tp->peer_ns, p); /* NR Sequence number - expected for peer */ + + /* AVP - Message type */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_MESSAGE, p); /* Attribute type: Message Type */ + PUTSHORT(PPPOL2TP_MESSAGETYPE_ICCN, p); /* Attribute value: Message type: ICCN */ + + /* AVP - Framing type */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 10, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_FRAMINGTYPE, p); /* Attribute type: Framing type */ + PUTLONG(PPPOL2TP_FRAMINGTYPE, p); /* Attribute value: Framing type */ + + /* AVP - TX Connect speed */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 10, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_TXCONNECTSPEED, p); /* Attribute type: TX Connect speed */ + PUTLONG(PPPOL2TP_TXCONNECTSPEED, p); /* Attribute value: TX Connect speed */ + + return pppol2tp_udp_send(l2tp, pb); +} + +/* Send a ZLB ACK packet */ +static err_t pppol2tp_send_zlb(pppol2tp_pcb *l2tp, u16_t ns, u16_t nr) { + struct pbuf *pb; + u8_t *p; + u16_t len; + + /* calculate UDP packet length */ + len = 12; + + /* allocate a buffer */ + pb = pbuf_alloc(PBUF_TRANSPORT, len, PBUF_RAM); + if (pb == NULL) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + + p = (u8_t*)pb->payload; + /* fill in pkt */ + /* L2TP control header */ + PUTSHORT(PPPOL2TP_HEADERFLAG_CONTROL_MANDATORY, p); + PUTSHORT(len, p); /* Length */ + PUTSHORT(l2tp->source_tunnel_id, p); /* Tunnel Id */ + PUTSHORT(0, p); /* Session Id */ + PUTSHORT(ns, p); /* NS Sequence number - to peer */ + PUTSHORT(nr, p); /* NR Sequence number - expected for peer */ + + return pppol2tp_udp_send(l2tp, pb); +} + +/* Send a StopCCN packet */ +static err_t pppol2tp_send_stopccn(pppol2tp_pcb *l2tp, u16_t ns) { + struct pbuf *pb; + u8_t *p; + u16_t len; + + /* calculate UDP packet length */ + len = 12 +8 +8 +8; + + /* allocate a buffer */ + pb = pbuf_alloc(PBUF_TRANSPORT, len, PBUF_RAM); + if (pb == NULL) { + return ERR_MEM; + } + LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len); + + p = (u8_t*)pb->payload; + /* fill in pkt */ + /* L2TP control header */ + PUTSHORT(PPPOL2TP_HEADERFLAG_CONTROL_MANDATORY, p); + PUTSHORT(len, p); /* Length */ + PUTSHORT(l2tp->source_tunnel_id, p); /* Tunnel Id */ + PUTSHORT(0, p); /* Session Id */ + PUTSHORT(ns, p); /* NS Sequence number - to peer */ + PUTSHORT(l2tp->peer_ns, p); /* NR Sequence number - expected for peer */ + + /* AVP - Message type */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_MESSAGE, p); /* Attribute type: Message Type */ + PUTSHORT(PPPOL2TP_MESSAGETYPE_STOPCCN, p); /* Attribute value: Message type: StopCCN */ + + /* AVP - Assign tunnel ID */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_TUNNELID, p); /* Attribute type: Tunnel ID */ + PUTSHORT(l2tp->remote_tunnel_id, p); /* Attribute value: Tunnel ID */ + + /* AVP - Result code */ + PUTSHORT(PPPOL2TP_AVPHEADERFLAG_MANDATORY + 8, p); /* Mandatory flag + len field */ + PUTSHORT(0, p); /* Vendor ID */ + PUTSHORT(PPPOL2TP_AVPTYPE_RESULTCODE, p); /* Attribute type: Result code */ + PUTSHORT(PPPOL2TP_RESULTCODE, p); /* Attribute value: Result code */ + + return pppol2tp_udp_send(l2tp, pb); +} + +static err_t pppol2tp_xmit(pppol2tp_pcb *l2tp, struct pbuf *pb) { + u8_t *p; + + /* make room for L2TP header - should not fail */ + if (pbuf_add_header(pb, PPPOL2TP_OUTPUT_DATA_HEADER_LEN) != 0) { + /* bail out */ + PPPDEBUG(LOG_ERR, ("pppol2tp: pppol2tp_pcb: could not allocate room for L2TP header\n")); + LINK_STATS_INC(link.lenerr); + pbuf_free(pb); + return ERR_BUF; + } + + p = (u8_t*)pb->payload; + PUTSHORT(PPPOL2TP_HEADERFLAG_DATA_MANDATORY, p); + PUTSHORT(l2tp->source_tunnel_id, p); /* Tunnel Id */ + PUTSHORT(l2tp->source_session_id, p); /* Session Id */ + + return pppol2tp_udp_send(l2tp, pb); +} + +static err_t pppol2tp_udp_send(pppol2tp_pcb *l2tp, struct pbuf *pb) { + err_t err; + if (l2tp->netif) { + err = udp_sendto_if(l2tp->udp, pb, &l2tp->remote_ip, l2tp->tunnel_port, l2tp->netif); + } else { + err = udp_sendto(l2tp->udp, pb, &l2tp->remote_ip, l2tp->tunnel_port); + } + pbuf_free(pb); + return err; +} + +#endif /* PPP_SUPPORT && PPPOL2TP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/pppos.c b/middleware/lwip/src/netif/ppp/pppos.c new file mode 100644 index 0000000..7992388 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/pppos.c @@ -0,0 +1,895 @@ +/** + * @file + * Network Point to Point Protocol over Serial file. + * + */ + +/* + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PPPOS_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include + +#include "lwip/arch.h" +#include "lwip/err.h" +#include "lwip/pbuf.h" +#include "lwip/sys.h" +#include "lwip/memp.h" +#include "lwip/netif.h" +#include "lwip/snmp.h" +#include "lwip/priv/tcpip_priv.h" +#include "lwip/api.h" +#include "lwip/ip4.h" /* for ip4_input() */ + +#include "netif/ppp/ppp_impl.h" +#include "netif/ppp/pppos.h" +#include "netif/ppp/vj.h" + +/* Memory pool */ +LWIP_MEMPOOL_DECLARE(PPPOS_PCB, MEMP_NUM_PPPOS_INTERFACES, sizeof(pppos_pcb), "PPPOS_PCB") + +/* callbacks called from PPP core */ +static err_t pppos_write(ppp_pcb *ppp, void *ctx, struct pbuf *p); +static err_t pppos_netif_output(ppp_pcb *ppp, void *ctx, struct pbuf *pb, u16_t protocol); +static void pppos_connect(ppp_pcb *ppp, void *ctx); +#if PPP_SERVER +static void pppos_listen(ppp_pcb *ppp, void *ctx); +#endif /* PPP_SERVER */ +static void pppos_disconnect(ppp_pcb *ppp, void *ctx); +static err_t pppos_destroy(ppp_pcb *ppp, void *ctx); +static void pppos_send_config(ppp_pcb *ppp, void *ctx, u32_t accm, int pcomp, int accomp); +static void pppos_recv_config(ppp_pcb *ppp, void *ctx, u32_t accm, int pcomp, int accomp); + +/* Prototypes for procedures local to this file. */ +#if PPP_INPROC_IRQ_SAFE +static void pppos_input_callback(void *arg); +#endif /* PPP_INPROC_IRQ_SAFE */ +static void pppos_input_free_current_packet(pppos_pcb *pppos); +static void pppos_input_drop(pppos_pcb *pppos); +static err_t pppos_output_append(pppos_pcb *pppos, err_t err, struct pbuf *nb, u8_t c, u8_t accm, u16_t *fcs); +static err_t pppos_output_last(pppos_pcb *pppos, err_t err, struct pbuf *nb, u16_t *fcs); + +/* Callbacks structure for PPP core */ +static const struct link_callbacks pppos_callbacks = { + pppos_connect, +#if PPP_SERVER + pppos_listen, +#endif /* PPP_SERVER */ + pppos_disconnect, + pppos_destroy, + pppos_write, + pppos_netif_output, + pppos_send_config, + pppos_recv_config +}; + +/* PPP's Asynchronous-Control-Character-Map. The mask array is used + * to select the specific bit for a character. */ +#define ESCAPE_P(accm, c) ((accm)[(c) >> 3] & 1 << (c & 0x07)) + +#if PPP_FCS_TABLE +/* + * FCS lookup table as calculated by genfcstab. + */ +static const u16_t fcstab[256] = { + 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, + 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7, + 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e, + 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876, + 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd, + 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, + 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c, + 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, + 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb, + 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3, + 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a, + 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72, + 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9, + 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1, + 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, + 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70, + 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, + 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff, + 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036, + 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e, + 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5, + 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd, + 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134, + 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, + 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3, + 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, + 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, + 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a, + 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1, + 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9, + 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330, + 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78 +}; +#define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) +#else /* PPP_FCS_TABLE */ +/* The HDLC polynomial: X**0 + X**5 + X**12 + X**16 (0x8408) */ +#define PPP_FCS_POLYNOMIAL 0x8408 +static u16_t +ppp_get_fcs(u8_t byte) +{ + unsigned int octet; + int bit; + octet = byte; + for (bit = 8; bit-- > 0; ) { + octet = (octet & 0x01) ? ((octet >> 1) ^ PPP_FCS_POLYNOMIAL) : (octet >> 1); + } + return octet & 0xffff; +} +#define PPP_FCS(fcs, c) (((fcs) >> 8) ^ ppp_get_fcs(((fcs) ^ (c)) & 0xff)) +#endif /* PPP_FCS_TABLE */ + +/* + * Values for FCS calculations. + */ +#define PPP_INITFCS 0xffff /* Initial FCS value */ +#define PPP_GOODFCS 0xf0b8 /* Good final FCS value */ + +#if PPP_INPROC_IRQ_SAFE +#define PPPOS_DECL_PROTECT(lev) SYS_ARCH_DECL_PROTECT(lev) +#define PPPOS_PROTECT(lev) SYS_ARCH_PROTECT(lev) +#define PPPOS_UNPROTECT(lev) SYS_ARCH_UNPROTECT(lev) +#else +#define PPPOS_DECL_PROTECT(lev) +#define PPPOS_PROTECT(lev) +#define PPPOS_UNPROTECT(lev) +#endif /* PPP_INPROC_IRQ_SAFE */ + + +/* + * Create a new PPP connection using the given serial I/O device. + * + * Return 0 on success, an error code on failure. + */ +ppp_pcb *pppos_create(struct netif *pppif, pppos_output_cb_fn output_cb, + ppp_link_status_cb_fn link_status_cb, void *ctx_cb) +{ + pppos_pcb *pppos; + ppp_pcb *ppp; + LWIP_ASSERT_CORE_LOCKED(); + + pppos = (pppos_pcb *)LWIP_MEMPOOL_ALLOC(PPPOS_PCB); + if (pppos == NULL) { + return NULL; + } + + ppp = ppp_new(pppif, &pppos_callbacks, pppos, link_status_cb, ctx_cb); + if (ppp == NULL) { + LWIP_MEMPOOL_FREE(PPPOS_PCB, pppos); + return NULL; + } + + memset(pppos, 0, sizeof(pppos_pcb)); + pppos->ppp = ppp; + pppos->output_cb = output_cb; + return ppp; +} + +/* Called by PPP core */ +static err_t +pppos_write(ppp_pcb *ppp, void *ctx, struct pbuf *p) +{ + pppos_pcb *pppos = (pppos_pcb *)ctx; + u8_t *s; + struct pbuf *nb; + u16_t n; + u16_t fcs_out; + err_t err; + LWIP_UNUSED_ARG(ppp); + + /* Grab an output buffer. Using PBUF_POOL here for tx is ok since the pbuf + gets freed by 'pppos_output_last' before this function returns and thus + cannot starve rx. */ + nb = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL); + if (nb == NULL) { + PPPDEBUG(LOG_WARNING, ("pppos_write[%d]: alloc fail\n", ppp->netif->num)); + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + pbuf_free(p); + return ERR_MEM; + } + + /* Set nb->tot_len to actual payload length */ + nb->tot_len = p->len; + + /* If the link has been idle, we'll send a fresh flag character to + * flush any noise. */ + err = ERR_OK; + if ((sys_now() - pppos->last_xmit) >= PPP_MAXIDLEFLAG) { + err = pppos_output_append(pppos, err, nb, PPP_FLAG, 0, NULL); + } + + /* Load output buffer. */ + fcs_out = PPP_INITFCS; + s = (u8_t*)p->payload; + n = p->len; + while (n-- > 0) { + err = pppos_output_append(pppos, err, nb, *s++, 1, &fcs_out); + } + + err = pppos_output_last(pppos, err, nb, &fcs_out); + if (err == ERR_OK) { + PPPDEBUG(LOG_INFO, ("pppos_write[%d]: len=%d\n", ppp->netif->num, p->len)); + } else { + PPPDEBUG(LOG_WARNING, ("pppos_write[%d]: output failed len=%d\n", ppp->netif->num, p->len)); + } + pbuf_free(p); + return err; +} + +/* Called by PPP core */ +static err_t +pppos_netif_output(ppp_pcb *ppp, void *ctx, struct pbuf *pb, u16_t protocol) +{ + pppos_pcb *pppos = (pppos_pcb *)ctx; + struct pbuf *nb, *p; + u16_t fcs_out; + err_t err; + LWIP_UNUSED_ARG(ppp); + + /* Grab an output buffer. Using PBUF_POOL here for tx is ok since the pbuf + gets freed by 'pppos_output_last' before this function returns and thus + cannot starve rx. */ + nb = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL); + if (nb == NULL) { + PPPDEBUG(LOG_WARNING, ("pppos_netif_output[%d]: alloc fail\n", ppp->netif->num)); + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + return ERR_MEM; + } + + /* Set nb->tot_len to actual payload length */ + nb->tot_len = pb->tot_len; + + /* If the link has been idle, we'll send a fresh flag character to + * flush any noise. */ + err = ERR_OK; + if ((sys_now() - pppos->last_xmit) >= PPP_MAXIDLEFLAG) { + err = pppos_output_append(pppos, err, nb, PPP_FLAG, 0, NULL); + } + + fcs_out = PPP_INITFCS; + if (!pppos->accomp) { + err = pppos_output_append(pppos, err, nb, PPP_ALLSTATIONS, 1, &fcs_out); + err = pppos_output_append(pppos, err, nb, PPP_UI, 1, &fcs_out); + } + if (!pppos->pcomp || protocol > 0xFF) { + err = pppos_output_append(pppos, err, nb, (protocol >> 8) & 0xFF, 1, &fcs_out); + } + err = pppos_output_append(pppos, err, nb, protocol & 0xFF, 1, &fcs_out); + + /* Load packet. */ + for(p = pb; p; p = p->next) { + u16_t n = p->len; + u8_t *s = (u8_t*)p->payload; + + while (n-- > 0) { + err = pppos_output_append(pppos, err, nb, *s++, 1, &fcs_out); + } + } + + err = pppos_output_last(pppos, err, nb, &fcs_out); + if (err == ERR_OK) { + PPPDEBUG(LOG_INFO, ("pppos_netif_output[%d]: proto=0x%"X16_F", len = %d\n", ppp->netif->num, protocol, pb->tot_len)); + } else { + PPPDEBUG(LOG_WARNING, ("pppos_netif_output[%d]: output failed proto=0x%"X16_F", len = %d\n", ppp->netif->num, protocol, pb->tot_len)); + } + return err; +} + +static void +pppos_connect(ppp_pcb *ppp, void *ctx) +{ + pppos_pcb *pppos = (pppos_pcb *)ctx; + PPPOS_DECL_PROTECT(lev); + +#if PPP_INPROC_IRQ_SAFE + /* input pbuf left over from last session? */ + pppos_input_free_current_packet(pppos); +#endif /* PPP_INPROC_IRQ_SAFE */ + + /* reset PPPoS control block to its initial state */ + memset(&pppos->last_xmit, 0, sizeof(pppos_pcb) - offsetof(pppos_pcb, last_xmit)); + + /* + * Default the in and out accm so that escape and flag characters + * are always escaped. + */ + pppos->in_accm[15] = 0x60; /* no need to protect since RX is not running */ + pppos->out_accm[15] = 0x60; + PPPOS_PROTECT(lev); + pppos->open = 1; + PPPOS_UNPROTECT(lev); + + /* + * Start the connection and handle incoming events (packet or timeout). + */ + PPPDEBUG(LOG_INFO, ("pppos_connect: unit %d: connecting\n", ppp->netif->num)); + ppp_start(ppp); /* notify upper layers */ +} + +#if PPP_SERVER +static void +pppos_listen(ppp_pcb *ppp, void *ctx) +{ + pppos_pcb *pppos = (pppos_pcb *)ctx; + PPPOS_DECL_PROTECT(lev); + +#if PPP_INPROC_IRQ_SAFE + /* input pbuf left over from last session? */ + pppos_input_free_current_packet(pppos); +#endif /* PPP_INPROC_IRQ_SAFE */ + + /* reset PPPoS control block to its initial state */ + memset(&pppos->last_xmit, 0, sizeof(pppos_pcb) - offsetof(pppos_pcb, last_xmit)); + + /* + * Default the in and out accm so that escape and flag characters + * are always escaped. + */ + pppos->in_accm[15] = 0x60; /* no need to protect since RX is not running */ + pppos->out_accm[15] = 0x60; + PPPOS_PROTECT(lev); + pppos->open = 1; + PPPOS_UNPROTECT(lev); + + /* + * Wait for something to happen. + */ + PPPDEBUG(LOG_INFO, ("pppos_listen: unit %d: listening\n", ppp->netif->num)); + ppp_start(ppp); /* notify upper layers */ +} +#endif /* PPP_SERVER */ + +static void +pppos_disconnect(ppp_pcb *ppp, void *ctx) +{ + pppos_pcb *pppos = (pppos_pcb *)ctx; + PPPOS_DECL_PROTECT(lev); + + PPPOS_PROTECT(lev); + pppos->open = 0; + PPPOS_UNPROTECT(lev); + + /* If PPP_INPROC_IRQ_SAFE is used we cannot call + * pppos_input_free_current_packet() here because + * rx IRQ might still call pppos_input(). + */ +#if !PPP_INPROC_IRQ_SAFE + /* input pbuf left ? */ + pppos_input_free_current_packet(pppos); +#endif /* !PPP_INPROC_IRQ_SAFE */ + + ppp_link_end(ppp); /* notify upper layers */ +} + +static err_t +pppos_destroy(ppp_pcb *ppp, void *ctx) +{ + pppos_pcb *pppos = (pppos_pcb *)ctx; + LWIP_UNUSED_ARG(ppp); + +#if PPP_INPROC_IRQ_SAFE + /* input pbuf left ? */ + pppos_input_free_current_packet(pppos); +#endif /* PPP_INPROC_IRQ_SAFE */ + + LWIP_MEMPOOL_FREE(PPPOS_PCB, pppos); + return ERR_OK; +} + +#if !NO_SYS && !PPP_INPROC_IRQ_SAFE +/** Pass received raw characters to PPPoS to be decoded through lwIP TCPIP thread. + * + * This is one of the only functions that may be called outside of the TCPIP thread! + * + * @param ppp PPP descriptor index, returned by pppos_create() + * @param s received data + * @param l length of received data + */ +err_t +pppos_input_tcpip(ppp_pcb *ppp, u8_t *s, int l) +{ + struct pbuf *p; + err_t err; + + p = pbuf_alloc(PBUF_RAW, l, PBUF_POOL); + if (!p) { + return ERR_MEM; + } + pbuf_take(p, s, l); + + err = tcpip_inpkt(p, ppp_netif(ppp), pppos_input_sys); + if (err != ERR_OK) { + pbuf_free(p); + } + return err; +} + +/* called from TCPIP thread */ +err_t pppos_input_sys(struct pbuf *p, struct netif *inp) { + ppp_pcb *ppp = (ppp_pcb*)inp->state; + struct pbuf *n; + LWIP_ASSERT_CORE_LOCKED(); + + for (n = p; n; n = n->next) { + pppos_input(ppp, (u8_t*)n->payload, n->len); + } + pbuf_free(p); + return ERR_OK; +} +#endif /* !NO_SYS && !PPP_INPROC_IRQ_SAFE */ + +/** PPPoS input helper struct, must be packed since it is stored + * to pbuf->payload, which might be unaligned. */ +#if PPP_INPROC_IRQ_SAFE +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct pppos_input_header { + PACK_STRUCT_FIELD(ppp_pcb *ppp); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif +#endif /* PPP_INPROC_IRQ_SAFE */ + +/** Pass received raw characters to PPPoS to be decoded. + * + * @param ppp PPP descriptor index, returned by pppos_create() + * @param s received data + * @param l length of received data + */ +void +pppos_input(ppp_pcb *ppp, u8_t *s, int l) +{ + pppos_pcb *pppos = (pppos_pcb *)ppp->link_ctx_cb; + struct pbuf *next_pbuf; + u8_t cur_char; + u8_t escaped; + PPPOS_DECL_PROTECT(lev); +#if !PPP_INPROC_IRQ_SAFE + LWIP_ASSERT_CORE_LOCKED(); +#endif + + PPPDEBUG(LOG_DEBUG, ("pppos_input[%d]: got %d bytes\n", ppp->netif->num, l)); + while (l-- > 0) { + cur_char = *s++; + + PPPOS_PROTECT(lev); + /* ppp_input can disconnect the interface, we need to abort to prevent a memory + * leak if there are remaining bytes because pppos_connect and pppos_listen + * functions expect input buffer to be free. Furthermore there are no real + * reason to continue reading bytes if we are disconnected. + */ + if (!pppos->open) { + PPPOS_UNPROTECT(lev); + return; + } + escaped = ESCAPE_P(pppos->in_accm, cur_char); + PPPOS_UNPROTECT(lev); + /* Handle special characters. */ + if (escaped) { + /* Check for escape sequences. */ + /* XXX Note that this does not handle an escaped 0x5d character which + * would appear as an escape character. Since this is an ASCII ']' + * and there is no reason that I know of to escape it, I won't complicate + * the code to handle this case. GLL */ + if (cur_char == PPP_ESCAPE) { + pppos->in_escaped = 1; + /* Check for the flag character. */ + } else if (cur_char == PPP_FLAG) { + /* If this is just an extra flag character, ignore it. */ + if (pppos->in_state <= PDADDRESS) { + /* ignore it */; + /* If we haven't received the packet header, drop what has come in. */ + } else if (pppos->in_state < PDDATA) { + PPPDEBUG(LOG_WARNING, + ("pppos_input[%d]: Dropping incomplete packet %d\n", + ppp->netif->num, pppos->in_state)); + LINK_STATS_INC(link.lenerr); + pppos_input_drop(pppos); + /* If the fcs is invalid, drop the packet. */ + } else if (pppos->in_fcs != PPP_GOODFCS) { + PPPDEBUG(LOG_INFO, + ("pppos_input[%d]: Dropping bad fcs 0x%"X16_F" proto=0x%"X16_F"\n", + ppp->netif->num, pppos->in_fcs, pppos->in_protocol)); + /* Note: If you get lots of these, check for UART frame errors or try different baud rate */ + LINK_STATS_INC(link.chkerr); + pppos_input_drop(pppos); + /* Otherwise it's a good packet so pass it on. */ + } else { + struct pbuf *inp; + /* Trim off the checksum. */ + if(pppos->in_tail->len > 2) { + pppos->in_tail->len -= 2; + + pppos->in_tail->tot_len = pppos->in_tail->len; + if (pppos->in_tail != pppos->in_head) { + pbuf_cat(pppos->in_head, pppos->in_tail); + } + } else { + pppos->in_tail->tot_len = pppos->in_tail->len; + if (pppos->in_tail != pppos->in_head) { + pbuf_cat(pppos->in_head, pppos->in_tail); + } + + pbuf_realloc(pppos->in_head, pppos->in_head->tot_len - 2); + } + + /* Dispatch the packet thereby consuming it. */ + inp = pppos->in_head; + /* Packet consumed, release our references. */ + pppos->in_head = NULL; + pppos->in_tail = NULL; +#if IP_FORWARD || LWIP_IPV6_FORWARD + /* hide the room for Ethernet forwarding header */ + pbuf_remove_header(inp, PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN); +#endif /* IP_FORWARD || LWIP_IPV6_FORWARD */ +#if PPP_INPROC_IRQ_SAFE + if(tcpip_try_callback(pppos_input_callback, inp) != ERR_OK) { + PPPDEBUG(LOG_ERR, ("pppos_input[%d]: tcpip_callback() failed, dropping packet\n", ppp->netif->num)); + pbuf_free(inp); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(ppp->netif, ifindiscards); + } +#else /* PPP_INPROC_IRQ_SAFE */ + ppp_input(ppp, inp); +#endif /* PPP_INPROC_IRQ_SAFE */ + } + + /* Prepare for a new packet. */ + pppos->in_fcs = PPP_INITFCS; + pppos->in_state = PDADDRESS; + pppos->in_escaped = 0; + /* Other characters are usually control characters that may have + * been inserted by the physical layer so here we just drop them. */ + } else { + PPPDEBUG(LOG_WARNING, + ("pppos_input[%d]: Dropping ACCM char <%d>\n", ppp->netif->num, cur_char)); + } + /* Process other characters. */ + } else { + /* Unencode escaped characters. */ + if (pppos->in_escaped) { + pppos->in_escaped = 0; + cur_char ^= PPP_TRANS; + } + + /* Process character relative to current state. */ + switch(pppos->in_state) { + case PDIDLE: /* Idle state - waiting. */ + /* Drop the character if it's not 0xff + * we would have processed a flag character above. */ + if (cur_char != PPP_ALLSTATIONS) { + break; + } + /* no break */ + /* Fall through */ + + case PDSTART: /* Process start flag. */ + /* Prepare for a new packet. */ + pppos->in_fcs = PPP_INITFCS; + /* no break */ + /* Fall through */ + + case PDADDRESS: /* Process address field. */ + if (cur_char == PPP_ALLSTATIONS) { + pppos->in_state = PDCONTROL; + break; + } + /* no break */ + + /* Else assume compressed address and control fields so + * fall through to get the protocol... */ + /* Fall through */ + case PDCONTROL: /* Process control field. */ + /* If we don't get a valid control code, restart. */ + if (cur_char == PPP_UI) { + pppos->in_state = PDPROTOCOL1; + break; + } + /* no break */ + +#if 0 + else { + PPPDEBUG(LOG_WARNING, + ("pppos_input[%d]: Invalid control <%d>\n", ppp->netif->num, cur_char)); + pppos->in_state = PDSTART; + } +#endif + /* Fall through */ + + case PDPROTOCOL1: /* Process protocol field 1. */ + /* If the lower bit is set, this is the end of the protocol + * field. */ + if (cur_char & 1) { + pppos->in_protocol = cur_char; + pppos->in_state = PDDATA; + } else { + pppos->in_protocol = (u16_t)cur_char << 8; + pppos->in_state = PDPROTOCOL2; + } + break; + case PDPROTOCOL2: /* Process protocol field 2. */ + pppos->in_protocol |= cur_char; + pppos->in_state = PDDATA; + break; + case PDDATA: /* Process data byte. */ + /* Make space to receive processed data. */ + if (pppos->in_tail == NULL || pppos->in_tail->len == PBUF_POOL_BUFSIZE) { + u16_t pbuf_alloc_len; + if (pppos->in_tail != NULL) { + pppos->in_tail->tot_len = pppos->in_tail->len; + if (pppos->in_tail != pppos->in_head) { + pbuf_cat(pppos->in_head, pppos->in_tail); + /* give up the in_tail reference now */ + pppos->in_tail = NULL; + } + } + /* If we haven't started a packet, we need a packet header. */ + pbuf_alloc_len = 0; +#if IP_FORWARD || LWIP_IPV6_FORWARD + /* If IP forwarding is enabled we are reserving PBUF_LINK_ENCAPSULATION_HLEN + * + PBUF_LINK_HLEN bytes so the packet is being allocated with enough header + * space to be forwarded (to Ethernet for example). + */ + if (pppos->in_head == NULL) { + pbuf_alloc_len = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN; + } +#endif /* IP_FORWARD || LWIP_IPV6_FORWARD */ + next_pbuf = pbuf_alloc(PBUF_RAW, pbuf_alloc_len, PBUF_POOL); + if (next_pbuf == NULL) { + /* No free buffers. Drop the input packet and let the + * higher layers deal with it. Continue processing + * the received pbuf chain in case a new packet starts. */ + PPPDEBUG(LOG_ERR, ("pppos_input[%d]: NO FREE PBUFS!\n", ppp->netif->num)); + LINK_STATS_INC(link.memerr); + pppos_input_drop(pppos); + pppos->in_state = PDSTART; /* Wait for flag sequence. */ + break; + } + if (pppos->in_head == NULL) { + u8_t *payload = ((u8_t*)next_pbuf->payload) + pbuf_alloc_len; +#if PPP_INPROC_IRQ_SAFE + ((struct pppos_input_header*)payload)->ppp = ppp; + payload += sizeof(struct pppos_input_header); + next_pbuf->len += sizeof(struct pppos_input_header); +#endif /* PPP_INPROC_IRQ_SAFE */ + next_pbuf->len += sizeof(pppos->in_protocol); + *(payload++) = pppos->in_protocol >> 8; + *(payload) = pppos->in_protocol & 0xFF; + pppos->in_head = next_pbuf; + } + pppos->in_tail = next_pbuf; + } + /* Load character into buffer. */ + ((u8_t*)pppos->in_tail->payload)[pppos->in_tail->len++] = cur_char; + break; + default: + break; + } + + /* update the frame check sequence number. */ + pppos->in_fcs = PPP_FCS(pppos->in_fcs, cur_char); + } + } /* while (l-- > 0), all bytes processed */ +} + +#if PPP_INPROC_IRQ_SAFE +/* PPPoS input callback using one input pointer + */ +static void pppos_input_callback(void *arg) { + struct pbuf *pb = (struct pbuf*)arg; + ppp_pcb *ppp; + + ppp = ((struct pppos_input_header*)pb->payload)->ppp; + if(pbuf_remove_header(pb, sizeof(struct pppos_input_header))) { + LWIP_ASSERT("pbuf_remove_header failed", 0); + goto drop; + } + + /* Dispatch the packet thereby consuming it. */ + ppp_input(ppp, pb); + return; + +drop: + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(ppp->netif, ifindiscards); + pbuf_free(pb); +} +#endif /* PPP_INPROC_IRQ_SAFE */ + +static void +pppos_send_config(ppp_pcb *ppp, void *ctx, u32_t accm, int pcomp, int accomp) +{ + int i; + pppos_pcb *pppos = (pppos_pcb *)ctx; + LWIP_UNUSED_ARG(ppp); + + pppos->pcomp = pcomp; + pppos->accomp = accomp; + + /* Load the ACCM bits for the 32 control codes. */ + for (i = 0; i < 32/8; i++) { + pppos->out_accm[i] = (u8_t)((accm >> (8 * i)) & 0xFF); + } + + PPPDEBUG(LOG_INFO, ("pppos_send_config[%d]: out_accm=%X %X %X %X\n", + pppos->ppp->netif->num, + pppos->out_accm[0], pppos->out_accm[1], pppos->out_accm[2], pppos->out_accm[3])); +} + +static void +pppos_recv_config(ppp_pcb *ppp, void *ctx, u32_t accm, int pcomp, int accomp) +{ + int i; + pppos_pcb *pppos = (pppos_pcb *)ctx; + PPPOS_DECL_PROTECT(lev); + LWIP_UNUSED_ARG(ppp); + LWIP_UNUSED_ARG(pcomp); + LWIP_UNUSED_ARG(accomp); + + /* Load the ACCM bits for the 32 control codes. */ + PPPOS_PROTECT(lev); + for (i = 0; i < 32 / 8; i++) { + pppos->in_accm[i] = (u8_t)(accm >> (i * 8)); + } + PPPOS_UNPROTECT(lev); + + PPPDEBUG(LOG_INFO, ("pppos_recv_config[%d]: in_accm=%X %X %X %X\n", + pppos->ppp->netif->num, + pppos->in_accm[0], pppos->in_accm[1], pppos->in_accm[2], pppos->in_accm[3])); +} + +/* + * Drop the input packet. + */ +static void +pppos_input_free_current_packet(pppos_pcb *pppos) +{ + if (pppos->in_head != NULL) { + if (pppos->in_tail && (pppos->in_tail != pppos->in_head)) { + pbuf_free(pppos->in_tail); + } + pbuf_free(pppos->in_head); + pppos->in_head = NULL; + } + pppos->in_tail = NULL; +} + +/* + * Drop the input packet and increase error counters. + */ +static void +pppos_input_drop(pppos_pcb *pppos) +{ + if (pppos->in_head != NULL) { +#if 0 + PPPDEBUG(LOG_INFO, ("pppos_input_drop: %d:%.*H\n", pppos->in_head->len, min(60, pppos->in_head->len * 2), pppos->in_head->payload)); +#endif + PPPDEBUG(LOG_INFO, ("pppos_input_drop: pbuf len=%d, addr %p\n", pppos->in_head->len, (void*)pppos->in_head)); + } + pppos_input_free_current_packet(pppos); +#if VJ_SUPPORT + vj_uncompress_err(&pppos->ppp->vj_comp); +#endif /* VJ_SUPPORT */ + + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(pppos->ppp->netif, ifindiscards); +} + +/* + * pppos_output_append - append given character to end of given pbuf. + * If out_accm is not 0 and the character needs to be escaped, do so. + * If pbuf is full, send the pbuf and reuse it. + * Return the current pbuf. + */ +static err_t +pppos_output_append(pppos_pcb *pppos, err_t err, struct pbuf *nb, u8_t c, u8_t accm, u16_t *fcs) +{ + if (err != ERR_OK) { + return err; + } + + /* Make sure there is room for the character and an escape code. + * Sure we don't quite fill the buffer if the character doesn't + * get escaped but is one character worth complicating this? */ + if ((PBUF_POOL_BUFSIZE - nb->len) < 2) { + u32_t l = pppos->output_cb(pppos->ppp, (u8_t*)nb->payload, nb->len, pppos->ppp->ctx_cb); + if (l != nb->len) { + return ERR_IF; + } + nb->len = 0; + } + + /* Update FCS before checking for special characters. */ + if (fcs) { + *fcs = PPP_FCS(*fcs, c); + } + + /* Copy to output buffer escaping special characters. */ + if (accm && ESCAPE_P(pppos->out_accm, c)) { + *((u8_t*)nb->payload + nb->len++) = PPP_ESCAPE; + *((u8_t*)nb->payload + nb->len++) = c ^ PPP_TRANS; + } else { + *((u8_t*)nb->payload + nb->len++) = c; + } + + return ERR_OK; +} + +static err_t +pppos_output_last(pppos_pcb *pppos, err_t err, struct pbuf *nb, u16_t *fcs) +{ + ppp_pcb *ppp = pppos->ppp; + + /* Add FCS and trailing flag. */ + err = pppos_output_append(pppos, err, nb, ~(*fcs) & 0xFF, 1, NULL); + err = pppos_output_append(pppos, err, nb, (~(*fcs) >> 8) & 0xFF, 1, NULL); + err = pppos_output_append(pppos, err, nb, PPP_FLAG, 0, NULL); + + if (err != ERR_OK) { + goto failed; + } + + /* Send remaining buffer if not empty */ + if (nb->len > 0) { + u32_t l = pppos->output_cb(ppp, (u8_t*)nb->payload, nb->len, ppp->ctx_cb); + if (l != nb->len) { + err = ERR_IF; + goto failed; + } + } + + pppos->last_xmit = sys_now(); + MIB2_STATS_NETIF_ADD(ppp->netif, ifoutoctets, nb->tot_len); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutucastpkts); + LINK_STATS_INC(link.xmit); + pbuf_free(nb); + return ERR_OK; + +failed: + pppos->last_xmit = 0; /* prepend PPP_FLAG to next packet */ + LINK_STATS_INC(link.err); + LINK_STATS_INC(link.drop); + MIB2_STATS_NETIF_INC(ppp->netif, ifoutdiscards); + pbuf_free(nb); + return err; +} + +#endif /* PPP_SUPPORT && PPPOS_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/upap.c b/middleware/lwip/src/netif/ppp/upap.c new file mode 100644 index 0000000..1a1340a --- /dev/null +++ b/middleware/lwip/src/netif/ppp/upap.c @@ -0,0 +1,677 @@ +/* + * upap.c - User/Password Authentication Protocol. + * + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The name "Carnegie Mellon University" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For permission or any legal + * details, please contact + * Office of Technology Transfer + * Carnegie Mellon University + * 5000 Forbes Avenue + * Pittsburgh, PA 15213-3890 + * (412) 268-4387, fax: (412) 268-7395 + * tech-transfer@andrew.cmu.edu + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Computing Services + * at Carnegie Mellon University (http://www.cmu.edu/computing/)." + * + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && PAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +/* + * @todo: + */ + +#if 0 /* UNUSED */ +#include +#include +#endif /* UNUSED */ + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/upap.h" + +#if PPP_OPTIONS +/* + * Command-line options. + */ +static option_t pap_option_list[] = { + { "hide-password", o_bool, &hide_password, + "Don't output passwords to log", OPT_PRIO | 1 }, + { "show-password", o_bool, &hide_password, + "Show password string in debug log messages", OPT_PRIOSUB | 0 }, + + { "pap-restart", o_int, &upap[0].us_timeouttime, + "Set retransmit timeout for PAP", OPT_PRIO }, + { "pap-max-authreq", o_int, &upap[0].us_maxtransmits, + "Set max number of transmissions for auth-reqs", OPT_PRIO }, + { "pap-timeout", o_int, &upap[0].us_reqtimeout, + "Set time limit for peer PAP authentication", OPT_PRIO }, + + { NULL } +}; +#endif /* PPP_OPTIONS */ + +/* + * Protocol entry points. + */ +static void upap_init(ppp_pcb *pcb); +static void upap_lowerup(ppp_pcb *pcb); +static void upap_lowerdown(ppp_pcb *pcb); +static void upap_input(ppp_pcb *pcb, u_char *inpacket, int l); +static void upap_protrej(ppp_pcb *pcb); +#if PRINTPKT_SUPPORT +static int upap_printpkt(const u_char *p, int plen, void (*printer) (void *, const char *, ...), void *arg); +#endif /* PRINTPKT_SUPPORT */ + +const struct protent pap_protent = { + PPP_PAP, + upap_init, + upap_input, + upap_protrej, + upap_lowerup, + upap_lowerdown, + NULL, + NULL, +#if PRINTPKT_SUPPORT + upap_printpkt, +#endif /* PRINTPKT_SUPPORT */ +#if PPP_DATAINPUT + NULL, +#endif /* PPP_DATAINPUT */ +#if PRINTPKT_SUPPORT + "PAP", + NULL, +#endif /* PRINTPKT_SUPPORT */ +#if PPP_OPTIONS + pap_option_list, + NULL, +#endif /* PPP_OPTIONS */ +#if DEMAND_SUPPORT + NULL, + NULL +#endif /* DEMAND_SUPPORT */ +}; + +static void upap_timeout(void *arg); +#if PPP_SERVER +static void upap_reqtimeout(void *arg); +static void upap_rauthreq(ppp_pcb *pcb, u_char *inp, int id, int len); +#endif /* PPP_SERVER */ +static void upap_rauthack(ppp_pcb *pcb, u_char *inp, int id, int len); +static void upap_rauthnak(ppp_pcb *pcb, u_char *inp, int id, int len); +static void upap_sauthreq(ppp_pcb *pcb); +#if PPP_SERVER +static void upap_sresp(ppp_pcb *pcb, u_char code, u_char id, const char *msg, int msglen); +#endif /* PPP_SERVER */ + + +/* + * upap_init - Initialize a UPAP unit. + */ +static void upap_init(ppp_pcb *pcb) { + pcb->upap.us_user = NULL; + pcb->upap.us_userlen = 0; + pcb->upap.us_passwd = NULL; + pcb->upap.us_passwdlen = 0; + pcb->upap.us_clientstate = UPAPCS_INITIAL; +#if PPP_SERVER + pcb->upap.us_serverstate = UPAPSS_INITIAL; +#endif /* PPP_SERVER */ + pcb->upap.us_id = 0; +} + + +/* + * upap_authwithpeer - Authenticate us with our peer (start client). + * + * Set new state and send authenticate's. + */ +void upap_authwithpeer(ppp_pcb *pcb, const char *user, const char *password) { + + if(!user || !password) + return; + + /* Save the username and password we're given */ + pcb->upap.us_user = user; + pcb->upap.us_userlen = (u8_t)LWIP_MIN(strlen(user), 0xff); + pcb->upap.us_passwd = password; + pcb->upap.us_passwdlen = (u8_t)LWIP_MIN(strlen(password), 0xff); + pcb->upap.us_transmits = 0; + + /* Lower layer up yet? */ + if (pcb->upap.us_clientstate == UPAPCS_INITIAL || + pcb->upap.us_clientstate == UPAPCS_PENDING) { + pcb->upap.us_clientstate = UPAPCS_PENDING; + return; + } + + upap_sauthreq(pcb); /* Start protocol */ +} + +#if PPP_SERVER +/* + * upap_authpeer - Authenticate our peer (start server). + * + * Set new state. + */ +void upap_authpeer(ppp_pcb *pcb) { + + /* Lower layer up yet? */ + if (pcb->upap.us_serverstate == UPAPSS_INITIAL || + pcb->upap.us_serverstate == UPAPSS_PENDING) { + pcb->upap.us_serverstate = UPAPSS_PENDING; + return; + } + + pcb->upap.us_serverstate = UPAPSS_LISTEN; + if (pcb->settings.pap_req_timeout > 0) + TIMEOUT(upap_reqtimeout, pcb, pcb->settings.pap_req_timeout); +} +#endif /* PPP_SERVER */ + +/* + * upap_timeout - Retransmission timer for sending auth-reqs expired. + */ +static void upap_timeout(void *arg) { + ppp_pcb *pcb = (ppp_pcb*)arg; + + if (pcb->upap.us_clientstate != UPAPCS_AUTHREQ) + return; + + if (pcb->upap.us_transmits >= pcb->settings.pap_max_transmits) { + /* give up in disgust */ + ppp_error(("No response to PAP authenticate-requests")); + pcb->upap.us_clientstate = UPAPCS_BADAUTH; + auth_withpeer_fail(pcb, PPP_PAP); + return; + } + + upap_sauthreq(pcb); /* Send Authenticate-Request */ +} + + +#if PPP_SERVER +/* + * upap_reqtimeout - Give up waiting for the peer to send an auth-req. + */ +static void upap_reqtimeout(void *arg) { + ppp_pcb *pcb = (ppp_pcb*)arg; + + if (pcb->upap.us_serverstate != UPAPSS_LISTEN) + return; /* huh?? */ + + auth_peer_fail(pcb, PPP_PAP); + pcb->upap.us_serverstate = UPAPSS_BADAUTH; +} +#endif /* PPP_SERVER */ + + +/* + * upap_lowerup - The lower layer is up. + * + * Start authenticating if pending. + */ +static void upap_lowerup(ppp_pcb *pcb) { + + if (pcb->upap.us_clientstate == UPAPCS_INITIAL) + pcb->upap.us_clientstate = UPAPCS_CLOSED; + else if (pcb->upap.us_clientstate == UPAPCS_PENDING) { + upap_sauthreq(pcb); /* send an auth-request */ + } + +#if PPP_SERVER + if (pcb->upap.us_serverstate == UPAPSS_INITIAL) + pcb->upap.us_serverstate = UPAPSS_CLOSED; + else if (pcb->upap.us_serverstate == UPAPSS_PENDING) { + pcb->upap.us_serverstate = UPAPSS_LISTEN; + if (pcb->settings.pap_req_timeout > 0) + TIMEOUT(upap_reqtimeout, pcb, pcb->settings.pap_req_timeout); + } +#endif /* PPP_SERVER */ +} + + +/* + * upap_lowerdown - The lower layer is down. + * + * Cancel all timeouts. + */ +static void upap_lowerdown(ppp_pcb *pcb) { + + if (pcb->upap.us_clientstate == UPAPCS_AUTHREQ) /* Timeout pending? */ + UNTIMEOUT(upap_timeout, pcb); /* Cancel timeout */ +#if PPP_SERVER + if (pcb->upap.us_serverstate == UPAPSS_LISTEN && pcb->settings.pap_req_timeout > 0) + UNTIMEOUT(upap_reqtimeout, pcb); +#endif /* PPP_SERVER */ + + pcb->upap.us_clientstate = UPAPCS_INITIAL; +#if PPP_SERVER + pcb->upap.us_serverstate = UPAPSS_INITIAL; +#endif /* PPP_SERVER */ +} + + +/* + * upap_protrej - Peer doesn't speak this protocol. + * + * This shouldn't happen. In any case, pretend lower layer went down. + */ +static void upap_protrej(ppp_pcb *pcb) { + + if (pcb->upap.us_clientstate == UPAPCS_AUTHREQ) { + ppp_error(("PAP authentication failed due to protocol-reject")); + auth_withpeer_fail(pcb, PPP_PAP); + } +#if PPP_SERVER + if (pcb->upap.us_serverstate == UPAPSS_LISTEN) { + ppp_error(("PAP authentication of peer failed (protocol-reject)")); + auth_peer_fail(pcb, PPP_PAP); + } +#endif /* PPP_SERVER */ + upap_lowerdown(pcb); +} + + +/* + * upap_input - Input UPAP packet. + */ +static void upap_input(ppp_pcb *pcb, u_char *inpacket, int l) { + u_char *inp; + u_char code, id; + int len; + + /* + * Parse header (code, id and length). + * If packet too short, drop it. + */ + inp = inpacket; + if (l < UPAP_HEADERLEN) { + UPAPDEBUG(("pap_input: rcvd short header.")); + return; + } + GETCHAR(code, inp); + GETCHAR(id, inp); + GETSHORT(len, inp); + if (len < UPAP_HEADERLEN) { + UPAPDEBUG(("pap_input: rcvd illegal length.")); + return; + } + if (len > l) { + UPAPDEBUG(("pap_input: rcvd short packet.")); + return; + } + len -= UPAP_HEADERLEN; + + /* + * Action depends on code. + */ + switch (code) { + case UPAP_AUTHREQ: +#if PPP_SERVER + upap_rauthreq(pcb, inp, id, len); +#endif /* PPP_SERVER */ + break; + + case UPAP_AUTHACK: + upap_rauthack(pcb, inp, id, len); + break; + + case UPAP_AUTHNAK: + upap_rauthnak(pcb, inp, id, len); + break; + + default: /* XXX Need code reject */ + break; + } +} + +#if PPP_SERVER +/* + * upap_rauth - Receive Authenticate. + */ +static void upap_rauthreq(ppp_pcb *pcb, u_char *inp, int id, int len) { + u_char ruserlen, rpasswdlen; + char *ruser; + char *rpasswd; + char rhostname[256]; + int retcode; + const char *msg; + int msglen; + + if (pcb->upap.us_serverstate < UPAPSS_LISTEN) + return; + + /* + * If we receive a duplicate authenticate-request, we are + * supposed to return the same status as for the first request. + */ + if (pcb->upap.us_serverstate == UPAPSS_OPEN) { + upap_sresp(pcb, UPAP_AUTHACK, id, "", 0); /* return auth-ack */ + return; + } + if (pcb->upap.us_serverstate == UPAPSS_BADAUTH) { + upap_sresp(pcb, UPAP_AUTHNAK, id, "", 0); /* return auth-nak */ + return; + } + + /* + * Parse user/passwd. + */ + if (len < 1) { + UPAPDEBUG(("pap_rauth: rcvd short packet.")); + return; + } + GETCHAR(ruserlen, inp); + len -= sizeof (u_char) + ruserlen + sizeof (u_char); + if (len < 0) { + UPAPDEBUG(("pap_rauth: rcvd short packet.")); + return; + } + ruser = (char *) inp; + INCPTR(ruserlen, inp); + GETCHAR(rpasswdlen, inp); + if (len < rpasswdlen) { + UPAPDEBUG(("pap_rauth: rcvd short packet.")); + return; + } + + rpasswd = (char *) inp; + + /* + * Check the username and password given. + */ + retcode = UPAP_AUTHNAK; + if (auth_check_passwd(pcb, ruser, ruserlen, rpasswd, rpasswdlen, &msg, &msglen)) { + retcode = UPAP_AUTHACK; + } + BZERO(rpasswd, rpasswdlen); + +#if 0 /* UNUSED */ + /* + * Check remote number authorization. A plugin may have filled in + * the remote number or added an allowed number, and rather than + * return an authenticate failure, is leaving it for us to verify. + */ + if (retcode == UPAP_AUTHACK) { + if (!auth_number()) { + /* We do not want to leak info about the pap result. */ + retcode = UPAP_AUTHNAK; /* XXX exit value will be "wrong" */ + warn("calling number %q is not authorized", remote_number); + } + } + + msglen = strlen(msg); + if (msglen > 255) + msglen = 255; +#endif /* UNUSED */ + + upap_sresp(pcb, retcode, id, msg, msglen); + + /* Null terminate and clean remote name. */ + ppp_slprintf(rhostname, sizeof(rhostname), "%.*v", ruserlen, ruser); + + if (retcode == UPAP_AUTHACK) { + pcb->upap.us_serverstate = UPAPSS_OPEN; + ppp_notice(("PAP peer authentication succeeded for %q", rhostname)); + auth_peer_success(pcb, PPP_PAP, 0, ruser, ruserlen); + } else { + pcb->upap.us_serverstate = UPAPSS_BADAUTH; + ppp_warn(("PAP peer authentication failed for %q", rhostname)); + auth_peer_fail(pcb, PPP_PAP); + } + + if (pcb->settings.pap_req_timeout > 0) + UNTIMEOUT(upap_reqtimeout, pcb); +} +#endif /* PPP_SERVER */ + +/* + * upap_rauthack - Receive Authenticate-Ack. + */ +static void upap_rauthack(ppp_pcb *pcb, u_char *inp, int id, int len) { + u_char msglen; + char *msg; + LWIP_UNUSED_ARG(id); + + if (pcb->upap.us_clientstate != UPAPCS_AUTHREQ) /* XXX */ + return; + + /* + * Parse message. + */ + if (len < 1) { + UPAPDEBUG(("pap_rauthack: ignoring missing msg-length.")); + } else { + GETCHAR(msglen, inp); + if (msglen > 0) { + len -= sizeof (u_char); + if (len < msglen) { + UPAPDEBUG(("pap_rauthack: rcvd short packet.")); + return; + } + msg = (char *) inp; + PRINTMSG(msg, msglen); + } + } + + pcb->upap.us_clientstate = UPAPCS_OPEN; + + auth_withpeer_success(pcb, PPP_PAP, 0); +} + + +/* + * upap_rauthnak - Receive Authenticate-Nak. + */ +static void upap_rauthnak(ppp_pcb *pcb, u_char *inp, int id, int len) { + u_char msglen; + char *msg; + LWIP_UNUSED_ARG(id); + + if (pcb->upap.us_clientstate != UPAPCS_AUTHREQ) /* XXX */ + return; + + /* + * Parse message. + */ + if (len < 1) { + UPAPDEBUG(("pap_rauthnak: ignoring missing msg-length.")); + } else { + GETCHAR(msglen, inp); + if (msglen > 0) { + len -= sizeof (u_char); + if (len < msglen) { + UPAPDEBUG(("pap_rauthnak: rcvd short packet.")); + return; + } + msg = (char *) inp; + PRINTMSG(msg, msglen); + } + } + + pcb->upap.us_clientstate = UPAPCS_BADAUTH; + + ppp_error(("PAP authentication failed")); + auth_withpeer_fail(pcb, PPP_PAP); +} + + +/* + * upap_sauthreq - Send an Authenticate-Request. + */ +static void upap_sauthreq(ppp_pcb *pcb) { + struct pbuf *p; + u_char *outp; + int outlen; + + outlen = UPAP_HEADERLEN + 2 * sizeof (u_char) + + pcb->upap.us_userlen + pcb->upap.us_passwdlen; + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN +outlen), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = (u_char*)p->payload; + MAKEHEADER(outp, PPP_PAP); + + PUTCHAR(UPAP_AUTHREQ, outp); + PUTCHAR(++pcb->upap.us_id, outp); + PUTSHORT(outlen, outp); + PUTCHAR(pcb->upap.us_userlen, outp); + MEMCPY(outp, pcb->upap.us_user, pcb->upap.us_userlen); + INCPTR(pcb->upap.us_userlen, outp); + PUTCHAR(pcb->upap.us_passwdlen, outp); + MEMCPY(outp, pcb->upap.us_passwd, pcb->upap.us_passwdlen); + + ppp_write(pcb, p); + + TIMEOUT(upap_timeout, pcb, pcb->settings.pap_timeout_time); + ++pcb->upap.us_transmits; + pcb->upap.us_clientstate = UPAPCS_AUTHREQ; +} + +#if PPP_SERVER +/* + * upap_sresp - Send a response (ack or nak). + */ +static void upap_sresp(ppp_pcb *pcb, u_char code, u_char id, const char *msg, int msglen) { + struct pbuf *p; + u_char *outp; + int outlen; + + outlen = UPAP_HEADERLEN + sizeof (u_char) + msglen; + p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN +outlen), PPP_CTRL_PBUF_TYPE); + if(NULL == p) + return; + if(p->tot_len != p->len) { + pbuf_free(p); + return; + } + + outp = (u_char*)p->payload; + MAKEHEADER(outp, PPP_PAP); + + PUTCHAR(code, outp); + PUTCHAR(id, outp); + PUTSHORT(outlen, outp); + PUTCHAR(msglen, outp); + MEMCPY(outp, msg, msglen); + + ppp_write(pcb, p); +} +#endif /* PPP_SERVER */ + +#if PRINTPKT_SUPPORT +/* + * upap_printpkt - print the contents of a PAP packet. + */ +static const char* const upap_codenames[] = { + "AuthReq", "AuthAck", "AuthNak" +}; + +static int upap_printpkt(const u_char *p, int plen, void (*printer) (void *, const char *, ...), void *arg) { + int code, id, len; + int mlen, ulen, wlen; + const u_char *user, *pwd, *msg; + const u_char *pstart; + + if (plen < UPAP_HEADERLEN) + return 0; + pstart = p; + GETCHAR(code, p); + GETCHAR(id, p); + GETSHORT(len, p); + if (len < UPAP_HEADERLEN || len > plen) + return 0; + + if (code >= 1 && code <= (int)LWIP_ARRAYSIZE(upap_codenames)) + printer(arg, " %s", upap_codenames[code-1]); + else + printer(arg, " code=0x%x", code); + printer(arg, " id=0x%x", id); + len -= UPAP_HEADERLEN; + switch (code) { + case UPAP_AUTHREQ: + if (len < 1) + break; + ulen = p[0]; + if (len < ulen + 2) + break; + wlen = p[ulen + 1]; + if (len < ulen + wlen + 2) + break; + user = (const u_char *) (p + 1); + pwd = (const u_char *) (p + ulen + 2); + p += ulen + wlen + 2; + len -= ulen + wlen + 2; + printer(arg, " user="); + ppp_print_string(user, ulen, printer, arg); + printer(arg, " password="); +/* FIXME: require ppp_pcb struct as printpkt() argument */ +#if 0 + if (!pcb->settings.hide_password) +#endif + ppp_print_string(pwd, wlen, printer, arg); +#if 0 + else + printer(arg, ""); +#endif + break; + case UPAP_AUTHACK: + case UPAP_AUTHNAK: + if (len < 1) + break; + mlen = p[0]; + if (len < mlen + 1) + break; + msg = (const u_char *) (p + 1); + p += mlen + 1; + len -= mlen + 1; + printer(arg, " "); + ppp_print_string(msg, mlen, printer, arg); + break; + default: + break; + } + + /* print the rest of the bytes in the packet */ + for (; len > 0; --len) { + GETCHAR(code, p); + printer(arg, " %.2x", code); + } + + return p - pstart; +} +#endif /* PRINTPKT_SUPPORT */ + +#endif /* PPP_SUPPORT && PAP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/utils.c b/middleware/lwip/src/netif/ppp/utils.c new file mode 100644 index 0000000..99a5fb1 --- /dev/null +++ b/middleware/lwip/src/netif/ppp/utils.c @@ -0,0 +1,957 @@ +/* + * utils.c - various utility functions used in pppd. + * + * Copyright (c) 1999-2002 Paul Mackerras. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. The name(s) of the authors of this software must not be used to + * endorse or promote products derived from this software without + * prior written permission. + * + * 3. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Paul Mackerras + * ". + * + * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#if 0 /* UNUSED */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef SVR4 +#include +#endif +#endif /* UNUSED */ + +#include "netif/ppp/ppp_impl.h" + +#include "netif/ppp/fsm.h" +#include "netif/ppp/lcp.h" + +#if defined(SUNOS4) +extern char *strerror(); +#endif + +static void ppp_logit(int level, const char *fmt, va_list args); +static void ppp_log_write(int level, char *buf); +#if PRINTPKT_SUPPORT +static void ppp_vslp_printer(void *arg, const char *fmt, ...); +static void ppp_format_packet(const u_char *p, int len, + void (*printer) (void *, const char *, ...), void *arg); + +struct buffer_info { + char *ptr; + int len; +}; +#endif /* PRINTPKT_SUPPORT */ + +/* + * ppp_strlcpy - like strcpy/strncpy, doesn't overflow destination buffer, + * always leaves destination null-terminated (for len > 0). + */ +size_t ppp_strlcpy(char *dest, const char *src, size_t len) { + size_t ret = strlen(src); + + if (len != 0) { + if (ret < len) + strcpy(dest, src); + else { + strncpy(dest, src, len - 1); + dest[len-1] = 0; + } + } + return ret; +} + +/* + * ppp_strlcat - like strcat/strncat, doesn't overflow destination buffer, + * always leaves destination null-terminated (for len > 0). + */ +size_t ppp_strlcat(char *dest, const char *src, size_t len) { + size_t dlen = strlen(dest); + + return dlen + ppp_strlcpy(dest + dlen, src, (len > dlen? len - dlen: 0)); +} + + +/* + * ppp_slprintf - format a message into a buffer. Like sprintf except we + * also specify the length of the output buffer, and we handle + * %m (error message), %v (visible string), + * %q (quoted string), %t (current time) and %I (IP address) formats. + * Doesn't do floating-point formats. + * Returns the number of chars put into buf. + */ +int ppp_slprintf(char *buf, int buflen, const char *fmt, ...) { + va_list args; + int n; + + va_start(args, fmt); + n = ppp_vslprintf(buf, buflen, fmt, args); + va_end(args); + return n; +} + +/* + * ppp_vslprintf - like ppp_slprintf, takes a va_list instead of a list of args. + */ +#define OUTCHAR(c) (buflen > 0? (--buflen, *buf++ = (c)): 0) + +int ppp_vslprintf(char *buf, int buflen, const char *fmt, va_list args) { + int c, i, n; + int width, prec, fillch; + int base, len, neg, quoted; + unsigned long val = 0; + const char *f; + char *str, *buf0; + const unsigned char *p; + char num[32]; +#if 0 /* need port */ + time_t t; +#endif /* need port */ + u32_t ip; + static char hexchars[] = "0123456789abcdef"; +#if PRINTPKT_SUPPORT + struct buffer_info bufinfo; +#endif /* PRINTPKT_SUPPORT */ + + buf0 = buf; + --buflen; + while (buflen > 0) { + for (f = fmt; *f != '%' && *f != 0; ++f) + ; + if (f > fmt) { + len = f - fmt; + if (len > buflen) + len = buflen; + memcpy(buf, fmt, len); + buf += len; + buflen -= len; + fmt = f; + } + if (*fmt == 0) + break; + c = *++fmt; + width = 0; + prec = -1; + fillch = ' '; + if (c == '0') { + fillch = '0'; + c = *++fmt; + } + if (c == '*') { + width = va_arg(args, int); + c = *++fmt; + } else { + while (lwip_isdigit(c)) { + width = width * 10 + c - '0'; + c = *++fmt; + } + } + if (c == '.') { + c = *++fmt; + if (c == '*') { + prec = va_arg(args, int); + c = *++fmt; + } else { + prec = 0; + while (lwip_isdigit(c)) { + prec = prec * 10 + c - '0'; + c = *++fmt; + } + } + } + str = 0; + base = 0; + neg = 0; + ++fmt; + switch (c) { + case 'l': + c = *fmt++; + switch (c) { + case 'd': + val = va_arg(args, long); + if ((long)val < 0) { + neg = 1; + val = (unsigned long)-(long)val; + } + base = 10; + break; + case 'u': + val = va_arg(args, unsigned long); + base = 10; + break; + default: + OUTCHAR('%'); + OUTCHAR('l'); + --fmt; /* so %lz outputs %lz etc. */ + continue; + } + break; + case 'd': + i = va_arg(args, int); + if (i < 0) { + neg = 1; + val = -i; + } else + val = i; + base = 10; + break; + case 'u': + val = va_arg(args, unsigned int); + base = 10; + break; + case 'o': + val = va_arg(args, unsigned int); + base = 8; + break; + case 'x': + case 'X': + val = va_arg(args, unsigned int); + base = 16; + break; +#if 0 /* unused (and wrong on LLP64 systems) */ + case 'p': + val = (unsigned long) va_arg(args, void *); + base = 16; + neg = 2; + break; +#endif /* unused (and wrong on LLP64 systems) */ + case 's': + str = va_arg(args, char *); + break; + case 'c': + num[0] = va_arg(args, int); + num[1] = 0; + str = num; + break; +#if 0 /* do we always have strerror() in embedded ? */ + case 'm': + str = strerror(errno); + break; +#endif /* do we always have strerror() in embedded ? */ + case 'I': + ip = va_arg(args, u32_t); + ip = lwip_ntohl(ip); + ppp_slprintf(num, sizeof(num), "%d.%d.%d.%d", (ip >> 24) & 0xff, + (ip >> 16) & 0xff, (ip >> 8) & 0xff, ip & 0xff); + str = num; + break; +#if 0 /* need port */ + case 't': + time(&t); + str = ctime(&t); + str += 4; /* chop off the day name */ + str[15] = 0; /* chop off year and newline */ + break; +#endif /* need port */ + case 'v': /* "visible" string */ + case 'q': /* quoted string */ + quoted = c == 'q'; + p = va_arg(args, unsigned char *); + if (p == NULL) + p = (const unsigned char *)""; + if (fillch == '0' && prec >= 0) { + n = prec; + } else { + n = strlen((const char *)p); + if (prec >= 0 && n > prec) + n = prec; + } + while (n > 0 && buflen > 0) { + c = *p++; + --n; + if (!quoted && c >= 0x80) { + OUTCHAR('M'); + OUTCHAR('-'); + c -= 0x80; + } + if (quoted && (c == '"' || c == '\\')) + OUTCHAR('\\'); + if (c < 0x20 || (0x7f <= c && c < 0xa0)) { + if (quoted) { + OUTCHAR('\\'); + switch (c) { + case '\t': OUTCHAR('t'); break; + case '\n': OUTCHAR('n'); break; + case '\b': OUTCHAR('b'); break; + case '\f': OUTCHAR('f'); break; + default: + OUTCHAR('x'); + OUTCHAR(hexchars[c >> 4]); + OUTCHAR(hexchars[c & 0xf]); + } + } else { + if (c == '\t') + OUTCHAR(c); + else { + OUTCHAR('^'); + OUTCHAR(c ^ 0x40); + } + } + } else + OUTCHAR(c); + } + continue; +#if PRINTPKT_SUPPORT + case 'P': /* print PPP packet */ + bufinfo.ptr = buf; + bufinfo.len = buflen + 1; + p = va_arg(args, unsigned char *); + n = va_arg(args, int); + ppp_format_packet(p, n, ppp_vslp_printer, &bufinfo); + buf = bufinfo.ptr; + buflen = bufinfo.len - 1; + continue; +#endif /* PRINTPKT_SUPPORT */ + case 'B': + p = va_arg(args, unsigned char *); + for (n = prec; n > 0; --n) { + c = *p++; + if (fillch == ' ') + OUTCHAR(' '); + OUTCHAR(hexchars[(c >> 4) & 0xf]); + OUTCHAR(hexchars[c & 0xf]); + } + continue; + default: + *buf++ = '%'; + if (c != '%') + --fmt; /* so %z outputs %z etc. */ + --buflen; + continue; + } + if (base != 0) { + str = num + sizeof(num); + *--str = 0; + while (str > num + neg) { + *--str = hexchars[val % base]; + val = val / base; + if (--prec <= 0 && val == 0) + break; + } + switch (neg) { + case 1: + *--str = '-'; + break; + case 2: + *--str = 'x'; + *--str = '0'; + break; + default: + break; + } + len = num + sizeof(num) - 1 - str; + } else { + len = strlen(str); + if (prec >= 0 && len > prec) + len = prec; + } + if (width > 0) { + if (width > buflen) + width = buflen; + if ((n = width - len) > 0) { + buflen -= n; + for (; n > 0; --n) + *buf++ = fillch; + } + } + if (len > buflen) + len = buflen; + memcpy(buf, str, len); + buf += len; + buflen -= len; + } + *buf = 0; + return buf - buf0; +} + +#if PRINTPKT_SUPPORT +/* + * vslp_printer - used in processing a %P format + */ +static void ppp_vslp_printer(void *arg, const char *fmt, ...) { + int n; + va_list pvar; + struct buffer_info *bi; + + va_start(pvar, fmt); + bi = (struct buffer_info *) arg; + n = ppp_vslprintf(bi->ptr, bi->len, fmt, pvar); + va_end(pvar); + + bi->ptr += n; + bi->len -= n; +} +#endif /* PRINTPKT_SUPPORT */ + +#if 0 /* UNUSED */ +/* + * log_packet - format a packet and log it. + */ + +void +log_packet(p, len, prefix, level) + u_char *p; + int len; + char *prefix; + int level; +{ + init_pr_log(prefix, level); + ppp_format_packet(p, len, pr_log, &level); + end_pr_log(); +} +#endif /* UNUSED */ + +#if PRINTPKT_SUPPORT +/* + * ppp_format_packet - make a readable representation of a packet, + * calling `printer(arg, format, ...)' to output it. + */ +static void ppp_format_packet(const u_char *p, int len, + void (*printer) (void *, const char *, ...), void *arg) { + int i, n; + u_short proto; + const struct protent *protp; + + if (len >= 2) { + GETSHORT(proto, p); + len -= 2; + for (i = 0; (protp = protocols[i]) != NULL; ++i) + if (proto == protp->protocol) + break; + if (protp != NULL) { + printer(arg, "[%s", protp->name); + n = (*protp->printpkt)(p, len, printer, arg); + printer(arg, "]"); + p += n; + len -= n; + } else { + for (i = 0; (protp = protocols[i]) != NULL; ++i) + if (proto == (protp->protocol & ~0x8000)) + break; + if (protp != 0 && protp->data_name != 0) { + printer(arg, "[%s data]", protp->data_name); + if (len > 8) + printer(arg, "%.8B ...", p); + else + printer(arg, "%.*B", len, p); + len = 0; + } else + printer(arg, "[proto=0x%x]", proto); + } + } + + if (len > 32) + printer(arg, "%.32B ...", p); + else + printer(arg, "%.*B", len, p); +} +#endif /* PRINTPKT_SUPPORT */ + +#if 0 /* UNUSED */ +/* + * init_pr_log, end_pr_log - initialize and finish use of pr_log. + */ + +static char line[256]; /* line to be logged accumulated here */ +static char *linep; /* current pointer within line */ +static int llevel; /* level for logging */ + +void +init_pr_log(prefix, level) + const char *prefix; + int level; +{ + linep = line; + if (prefix != NULL) { + ppp_strlcpy(line, prefix, sizeof(line)); + linep = line + strlen(line); + } + llevel = level; +} + +void +end_pr_log() +{ + if (linep != line) { + *linep = 0; + ppp_log_write(llevel, line); + } +} + +/* + * pr_log - printer routine for outputting to log + */ +void +pr_log (void *arg, const char *fmt, ...) +{ + int l, n; + va_list pvar; + char *p, *eol; + char buf[256]; + + va_start(pvar, fmt); + n = ppp_vslprintf(buf, sizeof(buf), fmt, pvar); + va_end(pvar); + + p = buf; + eol = strchr(buf, '\n'); + if (linep != line) { + l = (eol == NULL)? n: eol - buf; + if (linep + l < line + sizeof(line)) { + if (l > 0) { + memcpy(linep, buf, l); + linep += l; + } + if (eol == NULL) + return; + p = eol + 1; + eol = strchr(p, '\n'); + } + *linep = 0; + ppp_log_write(llevel, line); + linep = line; + } + + while (eol != NULL) { + *eol = 0; + ppp_log_write(llevel, p); + p = eol + 1; + eol = strchr(p, '\n'); + } + + /* assumes sizeof(buf) <= sizeof(line) */ + l = buf + n - p; + if (l > 0) { + memcpy(line, p, n); + linep = line + l; + } +} +#endif /* UNUSED */ + +/* + * ppp_print_string - print a readable representation of a string using + * printer. + */ +void ppp_print_string(const u_char *p, int len, void (*printer) (void *, const char *, ...), void *arg) { + int c; + + printer(arg, "\""); + for (; len > 0; --len) { + c = *p++; + if (' ' <= c && c <= '~') { + if (c == '\\' || c == '"') + printer(arg, "\\"); + printer(arg, "%c", c); + } else { + switch (c) { + case '\n': + printer(arg, "\\n"); + break; + case '\r': + printer(arg, "\\r"); + break; + case '\t': + printer(arg, "\\t"); + break; + default: + printer(arg, "\\%.3o", (u8_t)c); + /* no break */ + } + } + } + printer(arg, "\""); +} + +/* + * ppp_logit - does the hard work for fatal et al. + */ +static void ppp_logit(int level, const char *fmt, va_list args) { + char buf[1024]; + + ppp_vslprintf(buf, sizeof(buf), fmt, args); + ppp_log_write(level, buf); +} + +static void ppp_log_write(int level, char *buf) { + LWIP_UNUSED_ARG(level); /* necessary if PPPDEBUG is defined to an empty function */ + LWIP_UNUSED_ARG(buf); + PPPDEBUG(level, ("%s\n", buf) ); +#if 0 + if (log_to_fd >= 0 && (level != LOG_DEBUG || debug)) { + int n = strlen(buf); + + if (n > 0 && buf[n-1] == '\n') + --n; + if (write(log_to_fd, buf, n) != n + || write(log_to_fd, "\n", 1) != 1) + log_to_fd = -1; + } +#endif +} + +/* + * ppp_fatal - log an error message and die horribly. + */ +void ppp_fatal_impl(const char *fmt, ...) { + va_list pvar; + + va_start(pvar, fmt); + ppp_logit(LOG_ERR, fmt, pvar); + va_end(pvar); + + LWIP_ASSERT("ppp_fatal", 0); /* as promised */ +} + +/* + * ppp_error - log an error message. + */ +void ppp_error_impl(const char *fmt, ...) { + va_list pvar; + + va_start(pvar, fmt); + ppp_logit(LOG_ERR, fmt, pvar); + va_end(pvar); +#if 0 /* UNUSED */ + ++error_count; +#endif /* UNUSED */ +} + +/* + * ppp_warn - log a warning message. + */ +void ppp_warn_impl(const char *fmt, ...) { + va_list pvar; + + va_start(pvar, fmt); + ppp_logit(LOG_WARNING, fmt, pvar); + va_end(pvar); +} + +/* + * ppp_notice - log a notice-level message. + */ +void ppp_notice_impl(const char *fmt, ...) { + va_list pvar; + + va_start(pvar, fmt); + ppp_logit(LOG_NOTICE, fmt, pvar); + va_end(pvar); +} + +/* + * ppp_info - log an informational message. + */ +void ppp_info_impl(const char *fmt, ...) { + va_list pvar; + + va_start(pvar, fmt); + ppp_logit(LOG_INFO, fmt, pvar); + va_end(pvar); +} + +/* + * ppp_dbglog - log a debug message. + */ +void ppp_dbglog_impl(const char *fmt, ...) { + va_list pvar; + + va_start(pvar, fmt); + ppp_logit(LOG_DEBUG, fmt, pvar); + va_end(pvar); +} + +#if PRINTPKT_SUPPORT +/* + * ppp_dump_packet - print out a packet in readable form if it is interesting. + * Assumes len >= PPP_HDRLEN. + */ +void ppp_dump_packet(ppp_pcb *pcb, const char *tag, unsigned char *p, int len) { + int proto; + + /* + * don't print data packets, i.e. IPv4, IPv6, VJ, and compressed packets. + */ + proto = (p[0] << 8) + p[1]; + if (proto < 0xC000 && (proto & ~0x8000) == proto) + return; + + /* + * don't print valid LCP echo request/reply packets if the link is up. + */ + if (proto == PPP_LCP && pcb->phase == PPP_PHASE_RUNNING && len >= 2 + HEADERLEN) { + unsigned char *lcp = p + 2; + int l = (lcp[2] << 8) + lcp[3]; + + if ((lcp[0] == ECHOREQ || lcp[0] == ECHOREP) + && l >= HEADERLEN && l <= len - 2) + return; + } + + ppp_dbglog(("%s %P", tag, p, len)); +} +#endif /* PRINTPKT_SUPPORT */ + +#if 0 /* Unused */ + +/* + * complete_read - read a full `count' bytes from fd, + * unless end-of-file or an error other than EINTR is encountered. + */ +ssize_t +complete_read(int fd, void *buf, size_t count) +{ + size_t done; + ssize_t nb; + char *ptr = buf; + + for (done = 0; done < count; ) { + nb = read(fd, ptr, count - done); + if (nb < 0) { + if (errno == EINTR) + continue; + return -1; + } + if (nb == 0) + break; + done += nb; + ptr += nb; + } + return done; +} + +/* Procedures for locking the serial device using a lock file. */ +#ifndef LOCK_DIR +#ifdef __linux__ +#define LOCK_DIR "/var/lock" +#else +#ifdef SVR4 +#define LOCK_DIR "/var/spool/locks" +#else +#define LOCK_DIR "/var/spool/lock" +#endif +#endif +#endif /* LOCK_DIR */ + +static char lock_file[MAXPATHLEN]; + +/* + * lock - create a lock file for the named device + */ +int +lock(dev) + char *dev; +{ +#ifdef LOCKLIB + int result; + + result = mklock (dev, (void *) 0); + if (result == 0) { + ppp_strlcpy(lock_file, dev, sizeof(lock_file)); + return 0; + } + + if (result > 0) + ppp_notice(("Device %s is locked by pid %d", dev, result)); + else + ppp_error(("Can't create lock file %s", lock_file)); + return -1; + +#else /* LOCKLIB */ + + char lock_buffer[12]; + int fd, pid, n; + +#ifdef SVR4 + struct stat sbuf; + + if (stat(dev, &sbuf) < 0) { + ppp_error(("Can't get device number for %s: %m", dev)); + return -1; + } + if ((sbuf.st_mode & S_IFMT) != S_IFCHR) { + ppp_error(("Can't lock %s: not a character device", dev)); + return -1; + } + ppp_slprintf(lock_file, sizeof(lock_file), "%s/LK.%03d.%03d.%03d", + LOCK_DIR, major(sbuf.st_dev), + major(sbuf.st_rdev), minor(sbuf.st_rdev)); +#else + char *p; + char lockdev[MAXPATHLEN]; + + if ((p = strstr(dev, "dev/")) != NULL) { + dev = p + 4; + strncpy(lockdev, dev, MAXPATHLEN-1); + lockdev[MAXPATHLEN-1] = 0; + while ((p = strrchr(lockdev, '/')) != NULL) { + *p = '_'; + } + dev = lockdev; + } else + if ((p = strrchr(dev, '/')) != NULL) + dev = p + 1; + + ppp_slprintf(lock_file, sizeof(lock_file), "%s/LCK..%s", LOCK_DIR, dev); +#endif + + while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) { + if (errno != EEXIST) { + ppp_error(("Can't create lock file %s: %m", lock_file)); + break; + } + + /* Read the lock file to find out who has the device locked. */ + fd = open(lock_file, O_RDONLY, 0); + if (fd < 0) { + if (errno == ENOENT) /* This is just a timing problem. */ + continue; + ppp_error(("Can't open existing lock file %s: %m", lock_file)); + break; + } +#ifndef LOCK_BINARY + n = read(fd, lock_buffer, 11); +#else + n = read(fd, &pid, sizeof(pid)); +#endif /* LOCK_BINARY */ + close(fd); + fd = -1; + if (n <= 0) { + ppp_error(("Can't read pid from lock file %s", lock_file)); + break; + } + + /* See if the process still exists. */ +#ifndef LOCK_BINARY + lock_buffer[n] = 0; + pid = atoi(lock_buffer); +#endif /* LOCK_BINARY */ + if (pid == getpid()) + return 1; /* somebody else locked it for us */ + if (pid == 0 + || (kill(pid, 0) == -1 && errno == ESRCH)) { + if (unlink (lock_file) == 0) { + ppp_notice(("Removed stale lock on %s (pid %d)", dev, pid)); + continue; + } + ppp_warn(("Couldn't remove stale lock on %s", dev)); + } else + ppp_notice(("Device %s is locked by pid %d", dev, pid)); + break; + } + + if (fd < 0) { + lock_file[0] = 0; + return -1; + } + + pid = getpid(); +#ifndef LOCK_BINARY + ppp_slprintf(lock_buffer, sizeof(lock_buffer), "%10d\n", pid); + write (fd, lock_buffer, 11); +#else + write(fd, &pid, sizeof (pid)); +#endif + close(fd); + return 0; + +#endif +} + +/* + * relock - called to update our lockfile when we are about to detach, + * thus changing our pid (we fork, the child carries on, and the parent dies). + * Note that this is called by the parent, with pid equal to the pid + * of the child. This avoids a potential race which would exist if + * we had the child rewrite the lockfile (the parent might die first, + * and another process could think the lock was stale if it checked + * between when the parent died and the child rewrote the lockfile). + */ +int +relock(pid) + int pid; +{ +#ifdef LOCKLIB + /* XXX is there a way to do this? */ + return -1; +#else /* LOCKLIB */ + + int fd; + char lock_buffer[12]; + + if (lock_file[0] == 0) + return -1; + fd = open(lock_file, O_WRONLY, 0); + if (fd < 0) { + ppp_error(("Couldn't reopen lock file %s: %m", lock_file)); + lock_file[0] = 0; + return -1; + } + +#ifndef LOCK_BINARY + ppp_slprintf(lock_buffer, sizeof(lock_buffer), "%10d\n", pid); + write (fd, lock_buffer, 11); +#else + write(fd, &pid, sizeof(pid)); +#endif /* LOCK_BINARY */ + close(fd); + return 0; + +#endif /* LOCKLIB */ +} + +/* + * unlock - remove our lockfile + */ +void +unlock() +{ + if (lock_file[0]) { +#ifdef LOCKLIB + (void) rmlock(lock_file, (void *) 0); +#else + unlink(lock_file); +#endif + lock_file[0] = 0; + } +} + +#endif /* Unused */ + +#endif /* PPP_SUPPORT */ diff --git a/middleware/lwip/src/netif/ppp/vj.c b/middleware/lwip/src/netif/ppp/vj.c new file mode 100644 index 0000000..7b6f8ea --- /dev/null +++ b/middleware/lwip/src/netif/ppp/vj.c @@ -0,0 +1,685 @@ +/* + * Routines to compress and uncompess tcp packets (for transmission + * over low speed serial lines. + * + * Copyright (c) 1989 Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms are permitted + * provided that the above copyright notice and this paragraph are + * duplicated in all such forms and that any documentation, + * advertising materials, and other materials related to such + * distribution and use acknowledge that the software was developed + * by the University of California, Berkeley. The name of the + * University may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + * + * Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989: + * Initial distribution. + * + * Modified June 1993 by Paul Mackerras, paulus@cs.anu.edu.au, + * so that the entire packet being decompressed doesn't have + * to be in contiguous memory (just the compressed header). + * + * Modified March 1998 by Guy Lancaster, glanca@gesn.com, + * for a 16 bit processor. + */ + +#include "netif/ppp/ppp_opts.h" +#if PPP_SUPPORT && VJ_SUPPORT /* don't build if not configured for use in lwipopts.h */ + +#include "netif/ppp/ppp_impl.h" +#include "netif/ppp/pppdebug.h" + +#include "netif/ppp/vj.h" + +#include + +#if LINK_STATS +#define INCR(counter) ++comp->stats.counter +#else +#define INCR(counter) +#endif + +void +vj_compress_init(struct vjcompress *comp) +{ + u8_t i; + struct cstate *tstate = comp->tstate; + +#if MAX_SLOTS == 0 + memset((char *)comp, 0, sizeof(*comp)); +#endif + comp->maxSlotIndex = MAX_SLOTS - 1; + comp->compressSlot = 0; /* Disable slot ID compression by default. */ + for (i = MAX_SLOTS - 1; i > 0; --i) { + tstate[i].cs_id = i; + tstate[i].cs_next = &tstate[i - 1]; + } + tstate[0].cs_next = &tstate[MAX_SLOTS - 1]; + tstate[0].cs_id = 0; + comp->last_cs = &tstate[0]; + comp->last_recv = 255; + comp->last_xmit = 255; + comp->flags = VJF_TOSS; +} + + +/* ENCODE encodes a number that is known to be non-zero. ENCODEZ + * checks for zero (since zero has to be encoded in the long, 3 byte + * form). + */ +#define ENCODE(n) { \ + if ((u16_t)(n) >= 256) { \ + *cp++ = 0; \ + cp[1] = (u8_t)(n); \ + cp[0] = (u8_t)((n) >> 8); \ + cp += 2; \ + } else { \ + *cp++ = (u8_t)(n); \ + } \ +} +#define ENCODEZ(n) { \ + if ((u16_t)(n) >= 256 || (u16_t)(n) == 0) { \ + *cp++ = 0; \ + cp[1] = (u8_t)(n); \ + cp[0] = (u8_t)((n) >> 8); \ + cp += 2; \ + } else { \ + *cp++ = (u8_t)(n); \ + } \ +} + +#define DECODEL(f) { \ + if (*cp == 0) {\ + u32_t tmp_ = lwip_ntohl(f) + ((cp[1] << 8) | cp[2]); \ + (f) = lwip_htonl(tmp_); \ + cp += 3; \ + } else { \ + u32_t tmp_ = lwip_ntohl(f) + (u32_t)*cp++; \ + (f) = lwip_htonl(tmp_); \ + } \ +} + +#define DECODES(f) { \ + if (*cp == 0) {\ + u16_t tmp_ = lwip_ntohs(f) + (((u16_t)cp[1] << 8) | cp[2]); \ + (f) = lwip_htons(tmp_); \ + cp += 3; \ + } else { \ + u16_t tmp_ = lwip_ntohs(f) + (u16_t)*cp++; \ + (f) = lwip_htons(tmp_); \ + } \ +} + +#define DECODEU(f) { \ + if (*cp == 0) {\ + (f) = lwip_htons(((u16_t)cp[1] << 8) | cp[2]); \ + cp += 3; \ + } else { \ + (f) = lwip_htons((u16_t)*cp++); \ + } \ +} + +/* Helper structures for unaligned *u32_t and *u16_t accesses */ +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct vj_u32_t { + PACK_STRUCT_FIELD(u32_t v); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct vj_u16_t { + PACK_STRUCT_FIELD(u16_t v); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +/* + * vj_compress_tcp - Attempt to do Van Jacobson header compression on a + * packet. This assumes that nb and comp are not null and that the first + * buffer of the chain contains a valid IP header. + * Return the VJ type code indicating whether or not the packet was + * compressed. + */ +u8_t +vj_compress_tcp(struct vjcompress *comp, struct pbuf **pb) +{ + struct pbuf *np = *pb; + struct ip_hdr *ip = (struct ip_hdr *)np->payload; + struct cstate *cs = comp->last_cs->cs_next; + u16_t ilen = IPH_HL(ip); + u16_t hlen; + struct tcp_hdr *oth; + struct tcp_hdr *th; + u16_t deltaS, deltaA = 0; + u32_t deltaL; + u32_t changes = 0; + u8_t new_seq[16]; + u8_t *cp = new_seq; + + /* + * Check that the packet is IP proto TCP. + */ + if (IPH_PROTO(ip) != IP_PROTO_TCP) { + return (TYPE_IP); + } + + /* + * Bail if this is an IP fragment or if the TCP packet isn't + * `compressible' (i.e., ACK isn't set or some other control bit is + * set). + */ + if ((IPH_OFFSET(ip) & PP_HTONS(0x3fff)) || np->tot_len < 40) { + return (TYPE_IP); + } + th = (struct tcp_hdr *)&((struct vj_u32_t*)ip)[ilen]; + if ((TCPH_FLAGS(th) & (TCP_SYN|TCP_FIN|TCP_RST|TCP_ACK)) != TCP_ACK) { + return (TYPE_IP); + } + + /* Check that the TCP/IP headers are contained in the first buffer. */ + hlen = ilen + TCPH_HDRLEN(th); + hlen <<= 2; + if (np->len < hlen) { + PPPDEBUG(LOG_INFO, ("vj_compress_tcp: header len %d spans buffers\n", hlen)); + return (TYPE_IP); + } + + /* TCP stack requires that we don't change the packet payload, therefore we copy + * the whole packet before compression. */ + np = pbuf_clone(PBUF_RAW, PBUF_RAM, *pb); + if (!np) { + return (TYPE_IP); + } + + *pb = np; + ip = (struct ip_hdr *)np->payload; + + /* + * Packet is compressible -- we're going to send either a + * COMPRESSED_TCP or UNCOMPRESSED_TCP packet. Either way we need + * to locate (or create) the connection state. Special case the + * most recently used connection since it's most likely to be used + * again & we don't have to do any reordering if it's used. + */ + INCR(vjs_packets); + if (!ip4_addr_eq(&ip->src, &cs->cs_ip.src) + || !ip4_addr_eq(&ip->dest, &cs->cs_ip.dest) + || (*(struct vj_u32_t*)th).v != (((struct vj_u32_t*)&cs->cs_ip)[IPH_HL(&cs->cs_ip)]).v) { + /* + * Wasn't the first -- search for it. + * + * States are kept in a circularly linked list with + * last_cs pointing to the end of the list. The + * list is kept in lru order by moving a state to the + * head of the list whenever it is referenced. Since + * the list is short and, empirically, the connection + * we want is almost always near the front, we locate + * states via linear search. If we don't find a state + * for the datagram, the oldest state is (re-)used. + */ + struct cstate *lcs; + struct cstate *lastcs = comp->last_cs; + + do { + lcs = cs; cs = cs->cs_next; + INCR(vjs_searches); + if (ip4_addr_eq(&ip->src, &cs->cs_ip.src) + && ip4_addr_eq(&ip->dest, &cs->cs_ip.dest) + && (*(struct vj_u32_t*)th).v == (((struct vj_u32_t*)&cs->cs_ip)[IPH_HL(&cs->cs_ip)]).v) { + goto found; + } + } while (cs != lastcs); + + /* + * Didn't find it -- re-use oldest cstate. Send an + * uncompressed packet that tells the other side what + * connection number we're using for this conversation. + * Note that since the state list is circular, the oldest + * state points to the newest and we only need to set + * last_cs to update the lru linkage. + */ + INCR(vjs_misses); + comp->last_cs = lcs; + goto uncompressed; + + found: + /* + * Found it -- move to the front on the connection list. + */ + if (cs == lastcs) { + comp->last_cs = lcs; + } else { + lcs->cs_next = cs->cs_next; + cs->cs_next = lastcs->cs_next; + lastcs->cs_next = cs; + } + } + + oth = (struct tcp_hdr *)&((struct vj_u32_t*)&cs->cs_ip)[ilen]; + deltaS = ilen; + + /* + * Make sure that only what we expect to change changed. The first + * line of the `if' checks the IP protocol version, header length & + * type of service. The 2nd line checks the "Don't fragment" bit. + * The 3rd line checks the time-to-live and protocol (the protocol + * check is unnecessary but costless). The 4th line checks the TCP + * header length. The 5th line checks IP options, if any. The 6th + * line checks TCP options, if any. If any of these things are + * different between the previous & current datagram, we send the + * current datagram `uncompressed'. + */ + if ((((struct vj_u16_t*)ip)[0]).v != (((struct vj_u16_t*)&cs->cs_ip)[0]).v + || (((struct vj_u16_t*)ip)[3]).v != (((struct vj_u16_t*)&cs->cs_ip)[3]).v + || (((struct vj_u16_t*)ip)[4]).v != (((struct vj_u16_t*)&cs->cs_ip)[4]).v + || TCPH_HDRLEN(th) != TCPH_HDRLEN(oth) + || (deltaS > 5 && BCMP(ip + 1, &cs->cs_ip + 1, (deltaS - 5) << 2)) + || (TCPH_HDRLEN(th) > 5 && BCMP(th + 1, oth + 1, (TCPH_HDRLEN(th) - 5) << 2))) { + goto uncompressed; + } + + /* + * Figure out which of the changing fields changed. The + * receiver expects changes in the order: urgent, window, + * ack, seq (the order minimizes the number of temporaries + * needed in this section of code). + */ + if (TCPH_FLAGS(th) & TCP_URG) { + deltaS = lwip_ntohs(th->urgp); + ENCODEZ(deltaS); + changes |= NEW_U; + } else if (th->urgp != oth->urgp) { + /* argh! URG not set but urp changed -- a sensible + * implementation should never do this but RFC793 + * doesn't prohibit the change so we have to deal + * with it. */ + goto uncompressed; + } + + if ((deltaS = (u16_t)(lwip_ntohs(th->wnd) - lwip_ntohs(oth->wnd))) != 0) { + ENCODE(deltaS); + changes |= NEW_W; + } + + if ((deltaL = lwip_ntohl(th->ackno) - lwip_ntohl(oth->ackno)) != 0) { + if (deltaL > 0xffff) { + goto uncompressed; + } + deltaA = (u16_t)deltaL; + ENCODE(deltaA); + changes |= NEW_A; + } + + if ((deltaL = lwip_ntohl(th->seqno) - lwip_ntohl(oth->seqno)) != 0) { + if (deltaL > 0xffff) { + goto uncompressed; + } + deltaS = (u16_t)deltaL; + ENCODE(deltaS); + changes |= NEW_S; + } + + switch(changes) { + case 0: + /* + * Nothing changed. If this packet contains data and the + * last one didn't, this is probably a data packet following + * an ack (normal on an interactive connection) and we send + * it compressed. Otherwise it's probably a retransmit, + * retransmitted ack or window probe. Send it uncompressed + * in case the other side missed the compressed version. + */ + if (IPH_LEN(ip) != IPH_LEN(&cs->cs_ip) && + lwip_ntohs(IPH_LEN(&cs->cs_ip)) == hlen) { + break; + } + /* no break */ + /* fall through */ + + case SPECIAL_I: + case SPECIAL_D: + /* + * actual changes match one of our special case encodings -- + * send packet uncompressed. + */ + goto uncompressed; + + case NEW_S|NEW_A: + if (deltaS == deltaA && deltaS == lwip_ntohs(IPH_LEN(&cs->cs_ip)) - hlen) { + /* special case for echoed terminal traffic */ + changes = SPECIAL_I; + cp = new_seq; + } + break; + + case NEW_S: + if (deltaS == lwip_ntohs(IPH_LEN(&cs->cs_ip)) - hlen) { + /* special case for data xfer */ + changes = SPECIAL_D; + cp = new_seq; + } + break; + default: + break; + } + + deltaS = (u16_t)(lwip_ntohs(IPH_ID(ip)) - lwip_ntohs(IPH_ID(&cs->cs_ip))); + if (deltaS != 1) { + ENCODEZ(deltaS); + changes |= NEW_I; + } + if (TCPH_FLAGS(th) & TCP_PSH) { + changes |= TCP_PUSH_BIT; + } + /* + * Grab the cksum before we overwrite it below. Then update our + * state with this packet's header. + */ + deltaA = lwip_ntohs(th->chksum); + MEMCPY(&cs->cs_ip, ip, hlen); + + /* + * We want to use the original packet as our compressed packet. + * (cp - new_seq) is the number of bytes we need for compressed + * sequence numbers. In addition we need one byte for the change + * mask, one for the connection id and two for the tcp checksum. + * So, (cp - new_seq) + 4 bytes of header are needed. hlen is how + * many bytes of the original packet to toss so subtract the two to + * get the new packet size. + */ + deltaS = (u16_t)(cp - new_seq); + if (!comp->compressSlot || comp->last_xmit != cs->cs_id) { + comp->last_xmit = cs->cs_id; + hlen -= deltaS + 4; + if (pbuf_remove_header(np, hlen)){ + /* Can we cope with this failing? Just assert for now */ + LWIP_ASSERT("pbuf_remove_header failed", 0); + } + cp = (u8_t*)np->payload; + *cp++ = (u8_t)(changes | NEW_C); + *cp++ = cs->cs_id; + } else { + hlen -= deltaS + 3; + if (pbuf_remove_header(np, hlen)) { + /* Can we cope with this failing? Just assert for now */ + LWIP_ASSERT("pbuf_remove_header failed", 0); + } + cp = (u8_t*)np->payload; + *cp++ = (u8_t)changes; + } + *cp++ = (u8_t)(deltaA >> 8); + *cp++ = (u8_t)deltaA; + MEMCPY(cp, new_seq, deltaS); + INCR(vjs_compressed); + return (TYPE_COMPRESSED_TCP); + + /* + * Update connection state cs & send uncompressed packet (that is, + * a regular ip/tcp packet but with the 'conversation id' we hope + * to use on future compressed packets in the protocol field). + */ +uncompressed: + MEMCPY(&cs->cs_ip, ip, hlen); + IPH_PROTO_SET(ip, cs->cs_id); + comp->last_xmit = cs->cs_id; + return (TYPE_UNCOMPRESSED_TCP); +} + +/* + * Called when we may have missed a packet. + */ +void +vj_uncompress_err(struct vjcompress *comp) +{ + comp->flags |= VJF_TOSS; + INCR(vjs_errorin); +} + +/* + * "Uncompress" a packet of type TYPE_UNCOMPRESSED_TCP. + * Return 0 on success, -1 on failure. + */ +int +vj_uncompress_uncomp(struct pbuf *nb, struct vjcompress *comp) +{ + u32_t hlen; + struct cstate *cs; + struct ip_hdr *ip; + + ip = (struct ip_hdr *)nb->payload; + hlen = IPH_HL(ip) << 2; + if (IPH_PROTO(ip) >= MAX_SLOTS + || hlen + sizeof(struct tcp_hdr) > nb->len + || (hlen += TCPH_HDRLEN_BYTES((struct tcp_hdr *)&((char *)ip)[hlen])) + > nb->len + || hlen > MAX_HDR) { + PPPDEBUG(LOG_INFO, ("vj_uncompress_uncomp: bad cid=%d, hlen=%d buflen=%d\n", + IPH_PROTO(ip), hlen, nb->len)); + vj_uncompress_err(comp); + return -1; + } + cs = &comp->rstate[comp->last_recv = IPH_PROTO(ip)]; + comp->flags &=~ VJF_TOSS; + IPH_PROTO_SET(ip, IP_PROTO_TCP); + /* copy from/to bigger buffers checked above instead of cs->cs_ip and ip + just to help static code analysis to see this is correct ;-) */ + MEMCPY(&cs->cs_hdr, nb->payload, hlen); + cs->cs_hlen = (u16_t)hlen; + INCR(vjs_uncompressedin); + return 0; +} + +/* + * Uncompress a packet of type TYPE_COMPRESSED_TCP. + * The packet is composed of a buffer chain and the first buffer + * must contain an accurate chain length. + * The first buffer must include the entire compressed TCP/IP header. + * This procedure replaces the compressed header with the uncompressed + * header and returns the length of the VJ header. + */ +int +vj_uncompress_tcp(struct pbuf **nb, struct vjcompress *comp) +{ + u8_t *cp; + struct tcp_hdr *th; + struct cstate *cs; + struct vj_u16_t *bp; + struct pbuf *n0 = *nb; + u32_t tmp; + u32_t vjlen, hlen, changes; + + INCR(vjs_compressedin); + cp = (u8_t*)n0->payload; + changes = *cp++; + if (changes & NEW_C) { + /* + * Make sure the state index is in range, then grab the state. + * If we have a good state index, clear the 'discard' flag. + */ + if (*cp >= MAX_SLOTS) { + PPPDEBUG(LOG_INFO, ("vj_uncompress_tcp: bad cid=%d\n", *cp)); + goto bad; + } + + comp->flags &=~ VJF_TOSS; + comp->last_recv = *cp++; + } else { + /* + * this packet has an implicit state index. If we've + * had a line error since the last time we got an + * explicit state index, we have to toss the packet. + */ + if (comp->flags & VJF_TOSS) { + PPPDEBUG(LOG_INFO, ("vj_uncompress_tcp: tossing\n")); + INCR(vjs_tossed); + return (-1); + } + } + cs = &comp->rstate[comp->last_recv]; + hlen = IPH_HL(&cs->cs_ip) << 2; + th = (struct tcp_hdr *)&((u8_t*)&cs->cs_ip)[hlen]; + th->chksum = lwip_htons((*cp << 8) | cp[1]); + cp += 2; + if (changes & TCP_PUSH_BIT) { + TCPH_SET_FLAG(th, TCP_PSH); + } else { + TCPH_UNSET_FLAG(th, TCP_PSH); + } + + switch (changes & SPECIALS_MASK) { + case SPECIAL_I: + { + u32_t i = lwip_ntohs(IPH_LEN(&cs->cs_ip)) - cs->cs_hlen; + /* some compilers can't nest inline assembler.. */ + tmp = lwip_ntohl(th->ackno) + i; + th->ackno = lwip_htonl(tmp); + tmp = lwip_ntohl(th->seqno) + i; + th->seqno = lwip_htonl(tmp); + } + break; + + case SPECIAL_D: + /* some compilers can't nest inline assembler.. */ + tmp = lwip_ntohl(th->seqno) + lwip_ntohs(IPH_LEN(&cs->cs_ip)) - cs->cs_hlen; + th->seqno = lwip_htonl(tmp); + break; + + default: + if (changes & NEW_U) { + TCPH_SET_FLAG(th, TCP_URG); + DECODEU(th->urgp); + } else { + TCPH_UNSET_FLAG(th, TCP_URG); + } + if (changes & NEW_W) { + DECODES(th->wnd); + } + if (changes & NEW_A) { + DECODEL(th->ackno); + } + if (changes & NEW_S) { + DECODEL(th->seqno); + } + break; + } + if (changes & NEW_I) { + DECODES(cs->cs_ip._id); + } else { + IPH_ID_SET(&cs->cs_ip, lwip_ntohs(IPH_ID(&cs->cs_ip)) + 1); + IPH_ID_SET(&cs->cs_ip, lwip_htons(IPH_ID(&cs->cs_ip))); + } + + /* + * At this point, cp points to the first byte of data in the + * packet. Fill in the IP total length and update the IP + * header checksum. + */ + vjlen = (u16_t)(cp - (u8_t*)n0->payload); + if (n0->len < vjlen) { + /* + * We must have dropped some characters (crc should detect + * this but the old slip framing won't) + */ + PPPDEBUG(LOG_INFO, ("vj_uncompress_tcp: head buffer %d too short %d\n", + n0->len, vjlen)); + goto bad; + } + +#if BYTE_ORDER == LITTLE_ENDIAN + tmp = n0->tot_len - vjlen + cs->cs_hlen; + IPH_LEN_SET(&cs->cs_ip, lwip_htons((u16_t)tmp)); +#else + IPH_LEN_SET(&cs->cs_ip, lwip_htons(n0->tot_len - vjlen + cs->cs_hlen)); +#endif + + /* recompute the ip header checksum */ + bp = (struct vj_u16_t*) &cs->cs_ip; + IPH_CHKSUM_SET(&cs->cs_ip, 0); + for (tmp = 0; hlen > 0; hlen -= 2) { + tmp += (*bp++).v; + } + tmp = (tmp & 0xffff) + (tmp >> 16); + tmp = (tmp & 0xffff) + (tmp >> 16); + IPH_CHKSUM_SET(&cs->cs_ip, (u16_t)(~tmp)); + + /* Remove the compressed header and prepend the uncompressed header. */ + if (pbuf_remove_header(n0, vjlen)) { + /* Can we cope with this failing? Just assert for now */ + LWIP_ASSERT("pbuf_remove_header failed", 0); + goto bad; + } + + if(LWIP_MEM_ALIGN(n0->payload) != n0->payload) { + struct pbuf *np; + +#if IP_FORWARD + /* If IP forwarding is enabled we are using a PBUF_LINK packet type so + * the packet is being allocated with enough header space to be + * forwarded (to Ethernet for example). + */ + np = pbuf_alloc(PBUF_LINK, n0->len + cs->cs_hlen, PBUF_POOL); +#else /* IP_FORWARD */ + np = pbuf_alloc(PBUF_RAW, n0->len + cs->cs_hlen, PBUF_POOL); +#endif /* IP_FORWARD */ + if(!np) { + PPPDEBUG(LOG_WARNING, ("vj_uncompress_tcp: realign failed\n")); + goto bad; + } + + if (pbuf_remove_header(np, cs->cs_hlen)) { + /* Can we cope with this failing? Just assert for now */ + LWIP_ASSERT("pbuf_remove_header failed", 0); + goto bad; + } + + pbuf_take(np, n0->payload, n0->len); + + if(n0->next) { + pbuf_chain(np, n0->next); + pbuf_dechain(n0); + } + pbuf_free(n0); + n0 = np; + } + + if (pbuf_add_header(n0, cs->cs_hlen)) { + struct pbuf *np; + + LWIP_ASSERT("vj_uncompress_tcp: cs->cs_hlen <= PBUF_POOL_BUFSIZE", cs->cs_hlen <= PBUF_POOL_BUFSIZE); + np = pbuf_alloc(PBUF_RAW, cs->cs_hlen, PBUF_POOL); + if(!np) { + PPPDEBUG(LOG_WARNING, ("vj_uncompress_tcp: prepend failed\n")); + goto bad; + } + pbuf_cat(np, n0); + n0 = np; + } + LWIP_ASSERT("n0->len >= cs->cs_hlen", n0->len >= cs->cs_hlen); + MEMCPY(n0->payload, &cs->cs_ip, cs->cs_hlen); + + *nb = n0; + + return vjlen; + +bad: + vj_uncompress_err(comp); + return (-1); +} + +#endif /* PPP_SUPPORT && VJ_SUPPORT */ diff --git a/middleware/lwip/src/netif/slipif.c b/middleware/lwip/src/netif/slipif.c new file mode 100644 index 0000000..3ee5f1a --- /dev/null +++ b/middleware/lwip/src/netif/slipif.c @@ -0,0 +1,561 @@ +/** + * @file + * SLIP Interface + * + */ + +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is built upon the file: src/arch/rtxc/netif/sioslip.c + * + * Author: Magnus Ivarsson + * Simon Goldschmidt + */ + + +/** + * @defgroup slipif SLIP + * @ingroup netifs + * + * This is an arch independent SLIP netif. The specific serial hooks must be + * provided by another file. They are sio_open, sio_read/sio_tryread and sio_send + * + * Usage: This netif can be used in three ways: + * 1. For NO_SYS==0, an RX thread can be used which blocks on sio_read() + * until data is received. + * 2. In your main loop, call slipif_poll() to check for new RX bytes, + * completed packets are fed into netif->input(). + * 3. Call slipif_received_byte[s]() from your serial RX ISR and + * slipif_process_rxqueue() from your main loop. ISR level decodes + * packets and puts completed packets on a queue which is fed into + * the stack from the main loop (needs SYS_LIGHTWEIGHT_PROT for + * pbuf_alloc to work on ISR level!). + * + */ + +#include "netif/slipif.h" +#include "lwip/opt.h" + +#if LWIP_HAVE_SLIPIF + +#include "lwip/def.h" +#include "lwip/pbuf.h" +#include "lwip/stats.h" +#include "lwip/snmp.h" +#include "lwip/sys.h" +#include "lwip/sio.h" + +#define SLIP_END 0xC0 /* 0300: start and end of every packet */ +#define SLIP_ESC 0xDB /* 0333: escape start (one byte escaped data follows) */ +#define SLIP_ESC_END 0xDC /* 0334: following escape: original byte is 0xC0 (END) */ +#define SLIP_ESC_ESC 0xDD /* 0335: following escape: original byte is 0xDB (ESC) */ + +/** Maximum packet size that is received by this netif */ +#ifndef SLIP_MAX_SIZE +#define SLIP_MAX_SIZE 1500 +#endif + +/** Define this to the interface speed for SNMP + * (sio_fd is the sio_fd_t returned by sio_open). + * The default value of zero means 'unknown'. + */ +#ifndef SLIP_SIO_SPEED +#define SLIP_SIO_SPEED(sio_fd) 0 +#endif + +enum slipif_recv_state { + SLIP_RECV_NORMAL, + SLIP_RECV_ESCAPE +}; + +struct slipif_priv { + sio_fd_t sd; + /* q is the whole pbuf chain for a packet, p is the current pbuf in the chain */ + struct pbuf *p, *q; + u8_t state; + u16_t i, recved; +#if SLIP_RX_FROM_ISR + struct pbuf *rxpackets; +#endif +}; + +/** + * Send a pbuf doing the necessary SLIP encapsulation + * + * Uses the serial layer's sio_send() + * + * @param netif the lwip network interface structure for this slipif + * @param p the pbuf chain packet to send + * @return always returns ERR_OK since the serial layer does not provide return values + */ +static err_t +slipif_output(struct netif *netif, struct pbuf *p) +{ + struct slipif_priv *priv; + struct pbuf *q; + u16_t i; + u8_t c; + + LWIP_ASSERT("netif != NULL", (netif != NULL)); + LWIP_ASSERT("netif->state != NULL", (netif->state != NULL)); + LWIP_ASSERT("p != NULL", (p != NULL)); + + LWIP_DEBUGF(SLIP_DEBUG, ("slipif_output: sending %"U16_F" bytes\n", p->tot_len)); + priv = (struct slipif_priv *)netif->state; + + /* Send pbuf out on the serial I/O device. */ + /* Start with packet delimiter. */ + sio_send(SLIP_END, priv->sd); + + for (q = p; q != NULL; q = q->next) { + for (i = 0; i < q->len; i++) { + c = ((u8_t *)q->payload)[i]; + switch (c) { + case SLIP_END: + /* need to escape this byte (0xC0 -> 0xDB, 0xDC) */ + sio_send(SLIP_ESC, priv->sd); + sio_send(SLIP_ESC_END, priv->sd); + break; + case SLIP_ESC: + /* need to escape this byte (0xDB -> 0xDB, 0xDD) */ + sio_send(SLIP_ESC, priv->sd); + sio_send(SLIP_ESC_ESC, priv->sd); + break; + default: + /* normal byte - no need for escaping */ + sio_send(c, priv->sd); + break; + } + } + } + /* End with packet delimiter. */ + sio_send(SLIP_END, priv->sd); + return ERR_OK; +} + +#if LWIP_IPV4 +/** + * Send a pbuf doing the necessary SLIP encapsulation + * + * Uses the serial layer's sio_send() + * + * @param netif the lwip network interface structure for this slipif + * @param p the pbuf chain packet to send + * @param ipaddr the ip address to send the packet to (not used for slipif) + * @return always returns ERR_OK since the serial layer does not provide return values + */ +static err_t +slipif_output_v4(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr) +{ + LWIP_UNUSED_ARG(ipaddr); + return slipif_output(netif, p); +} +#endif /* LWIP_IPV4 */ + +#if LWIP_IPV6 +/** + * Send a pbuf doing the necessary SLIP encapsulation + * + * Uses the serial layer's sio_send() + * + * @param netif the lwip network interface structure for this slipif + * @param p the pbuf chain packet to send + * @param ipaddr the ip address to send the packet to (not used for slipif) + * @return always returns ERR_OK since the serial layer does not provide return values + */ +static err_t +slipif_output_v6(struct netif *netif, struct pbuf *p, const ip6_addr_t *ipaddr) +{ + LWIP_UNUSED_ARG(ipaddr); + return slipif_output(netif, p); +} +#endif /* LWIP_IPV6 */ + +/** + * Handle the incoming SLIP stream character by character + * + * @param netif the lwip network interface structure for this slipif + * @param c received character (multiple calls to this function will + * return a complete packet, NULL is returned before - used for polling) + * @return The IP packet when SLIP_END is received + */ +static struct pbuf * +slipif_rxbyte(struct netif *netif, u8_t c) +{ + struct slipif_priv *priv; + struct pbuf *t; + + LWIP_ASSERT("netif != NULL", (netif != NULL)); + LWIP_ASSERT("netif->state != NULL", (netif->state != NULL)); + + priv = (struct slipif_priv *)netif->state; + + switch (priv->state) { + case SLIP_RECV_NORMAL: + switch (c) { + case SLIP_END: + if (priv->recved > 0) { + /* Received whole packet. */ + /* Trim the pbuf to the size of the received packet. */ + pbuf_realloc(priv->q, priv->recved); + + LINK_STATS_INC(link.recv); + + LWIP_DEBUGF(SLIP_DEBUG, ("slipif: Got packet (%"U16_F" bytes)\n", priv->recved)); + t = priv->q; + priv->p = priv->q = NULL; + priv->i = priv->recved = 0; + return t; + } + return NULL; + case SLIP_ESC: + priv->state = SLIP_RECV_ESCAPE; + return NULL; + default: + break; + } /* end switch (c) */ + break; + case SLIP_RECV_ESCAPE: + /* un-escape END or ESC bytes, leave other bytes + (although that would be a protocol error) */ + switch (c) { + case SLIP_ESC_END: + c = SLIP_END; + break; + case SLIP_ESC_ESC: + c = SLIP_ESC; + break; + default: + break; + } + priv->state = SLIP_RECV_NORMAL; + break; + default: + break; + } /* end switch (priv->state) */ + + /* byte received, packet not yet completely received */ + if (priv->p == NULL) { + /* allocate a new pbuf */ + LWIP_DEBUGF(SLIP_DEBUG, ("slipif_input: alloc\n")); + priv->p = pbuf_alloc(PBUF_LINK, (PBUF_POOL_BUFSIZE - PBUF_LINK_HLEN - PBUF_LINK_ENCAPSULATION_HLEN), PBUF_POOL); + + if (priv->p == NULL) { + LINK_STATS_INC(link.drop); + LWIP_DEBUGF(SLIP_DEBUG, ("slipif_input: no new pbuf! (DROP)\n")); + /* don't process any further since we got no pbuf to receive to */ + return NULL; + } + + if (priv->q != NULL) { + /* 'chain' the pbuf to the existing chain */ + pbuf_cat(priv->q, priv->p); + } else { + /* p is the first pbuf in the chain */ + priv->q = priv->p; + } + } + + /* this automatically drops bytes if > SLIP_MAX_SIZE */ + if ((priv->p != NULL) && (priv->recved <= SLIP_MAX_SIZE)) { + ((u8_t *)priv->p->payload)[priv->i] = c; + priv->recved++; + priv->i++; + if (priv->i >= priv->p->len) { + /* on to the next pbuf */ + priv->i = 0; + if (priv->p->next != NULL && priv->p->next->len > 0) { + /* p is a chain, on to the next in the chain */ + priv->p = priv->p->next; + } else { + /* p is a single pbuf, set it to NULL so next time a new + * pbuf is allocated */ + priv->p = NULL; + } + } + } + return NULL; +} + +/** Like slipif_rxbyte, but passes completed packets to netif->input + * + * @param netif The lwip network interface structure for this slipif + * @param c received character + */ +static void +slipif_rxbyte_input(struct netif *netif, u8_t c) +{ + struct pbuf *p; + p = slipif_rxbyte(netif, c); + if (p != NULL) { + if (netif->input(p, netif) != ERR_OK) { + pbuf_free(p); + } + } +} + +#if SLIP_USE_RX_THREAD +/** + * The SLIP input thread. + * + * Feed the IP layer with incoming packets + * + * @param nf the lwip network interface structure for this slipif + */ +static void +slipif_loop_thread(void *nf) +{ + u8_t c; + struct netif *netif = (struct netif *)nf; + struct slipif_priv *priv = (struct slipif_priv *)netif->state; + + while (1) { + if (sio_read(priv->sd, &c, 1) > 0) { + slipif_rxbyte_input(netif, c); + } + } +} +#endif /* SLIP_USE_RX_THREAD */ + +/** + * @ingroup slipif + * SLIP netif initialization + * + * Call the arch specific sio_open and remember + * the opened device in the state field of the netif. + * + * @param netif the lwip network interface structure for this slipif + * @return ERR_OK if serial line could be opened, + * ERR_MEM if no memory could be allocated, + * ERR_IF is serial line couldn't be opened + * + * @note If netif->state is interpreted as an u8_t serial port number. + * + */ +err_t +slipif_init(struct netif *netif) +{ + struct slipif_priv *priv; + u8_t sio_num; + + LWIP_ASSERT("slipif needs an input callback", netif->input != NULL); + + /* netif->state contains serial port number */ + sio_num = LWIP_PTR_NUMERIC_CAST(u8_t, netif->state); + + LWIP_DEBUGF(SLIP_DEBUG, ("slipif_init: netif->num=%"U16_F"\n", (u16_t)sio_num)); + + /* Allocate private data */ + priv = (struct slipif_priv *)mem_malloc(sizeof(struct slipif_priv)); + if (!priv) { + return ERR_MEM; + } + + netif->name[0] = 's'; + netif->name[1] = 'l'; +#if LWIP_IPV4 + netif->output = slipif_output_v4; +#endif /* LWIP_IPV4 */ +#if LWIP_IPV6 + netif->output_ip6 = slipif_output_v6; +#endif /* LWIP_IPV6 */ + netif->mtu = SLIP_MAX_SIZE; + + /* Try to open the serial port. */ + priv->sd = sio_open(sio_num); + if (!priv->sd) { + /* Opening the serial port failed. */ + mem_free(priv); + return ERR_IF; + } + + /* Initialize private data */ + priv->p = NULL; + priv->q = NULL; + priv->state = SLIP_RECV_NORMAL; + priv->i = 0; + priv->recved = 0; +#if SLIP_RX_FROM_ISR + priv->rxpackets = NULL; +#endif + + netif->state = priv; + + /* initialize the snmp variables and counters inside the struct netif */ + MIB2_INIT_NETIF(netif, snmp_ifType_slip, SLIP_SIO_SPEED(priv->sd)); + +#if SLIP_USE_RX_THREAD + /* Create a thread to poll the serial line. */ + sys_thread_new(SLIPIF_THREAD_NAME, slipif_loop_thread, netif, + SLIPIF_THREAD_STACKSIZE, SLIPIF_THREAD_PRIO); +#endif /* SLIP_USE_RX_THREAD */ + return ERR_OK; +} + +/** + * @ingroup slipif + * Polls the serial device and feeds the IP layer with incoming packets. + * + * @param netif The lwip network interface structure for this slipif + */ +void +slipif_poll(struct netif *netif) +{ + u8_t c; + struct slipif_priv *priv; + + LWIP_ASSERT("netif != NULL", (netif != NULL)); + LWIP_ASSERT("netif->state != NULL", (netif->state != NULL)); + + priv = (struct slipif_priv *)netif->state; + + while (sio_tryread(priv->sd, &c, 1) > 0) { + slipif_rxbyte_input(netif, c); + } +} + +#if SLIP_RX_FROM_ISR +/** + * @ingroup slipif + * Feeds the IP layer with incoming packets that were receive + * + * @param netif The lwip network interface structure for this slipif + */ +void +slipif_process_rxqueue(struct netif *netif) +{ + struct slipif_priv *priv; + SYS_ARCH_DECL_PROTECT(old_level); + + LWIP_ASSERT("netif != NULL", (netif != NULL)); + LWIP_ASSERT("netif->state != NULL", (netif->state != NULL)); + + priv = (struct slipif_priv *)netif->state; + + SYS_ARCH_PROTECT(old_level); + while (priv->rxpackets != NULL) { + struct pbuf *p = priv->rxpackets; +#if SLIP_RX_QUEUE + /* dequeue packet */ + struct pbuf *q = p; + while ((q->len != q->tot_len) && (q->next != NULL)) { + q = q->next; + } + priv->rxpackets = q->next; + q->next = NULL; +#else /* SLIP_RX_QUEUE */ + priv->rxpackets = NULL; +#endif /* SLIP_RX_QUEUE */ + SYS_ARCH_UNPROTECT(old_level); + if (netif->input(p, netif) != ERR_OK) { + pbuf_free(p); + } + SYS_ARCH_PROTECT(old_level); + } + SYS_ARCH_UNPROTECT(old_level); +} + +/** Like slipif_rxbyte, but queues completed packets. + * + * @param netif The lwip network interface structure for this slipif + * @param data Received serial byte + */ +static void +slipif_rxbyte_enqueue(struct netif *netif, u8_t data) +{ + struct pbuf *p; + struct slipif_priv *priv = (struct slipif_priv *)netif->state; + SYS_ARCH_DECL_PROTECT(old_level); + + p = slipif_rxbyte(netif, data); + if (p != NULL) { + SYS_ARCH_PROTECT(old_level); + if (priv->rxpackets != NULL) { +#if SLIP_RX_QUEUE + /* queue multiple pbufs */ + struct pbuf *q = p; + while (q->next != NULL) { + q = q->next; + } + q->next = p; + } else { +#else /* SLIP_RX_QUEUE */ + pbuf_free(priv->rxpackets); + } + { +#endif /* SLIP_RX_QUEUE */ + priv->rxpackets = p; + } + SYS_ARCH_UNPROTECT(old_level); + } +} + +/** + * @ingroup slipif + * Process a received byte, completed packets are put on a queue that is + * fed into IP through slipif_process_rxqueue(). + * + * This function can be called from ISR if SYS_LIGHTWEIGHT_PROT is enabled. + * + * @param netif The lwip network interface structure for this slipif + * @param data received character + */ +void +slipif_received_byte(struct netif *netif, u8_t data) +{ + LWIP_ASSERT("netif != NULL", (netif != NULL)); + LWIP_ASSERT("netif->state != NULL", (netif->state != NULL)); + slipif_rxbyte_enqueue(netif, data); +} + +/** + * @ingroup slipif + * Process multiple received byte, completed packets are put on a queue that is + * fed into IP through slipif_process_rxqueue(). + * + * This function can be called from ISR if SYS_LIGHTWEIGHT_PROT is enabled. + * + * @param netif The lwip network interface structure for this slipif + * @param data received character + * @param len Number of received characters + */ +void +slipif_received_bytes(struct netif *netif, u8_t *data, u8_t len) +{ + u8_t i; + u8_t *rxdata = data; + LWIP_ASSERT("netif != NULL", (netif != NULL)); + LWIP_ASSERT("netif->state != NULL", (netif->state != NULL)); + + for (i = 0; i < len; i++, rxdata++) { + slipif_rxbyte_enqueue(netif, *rxdata); + } +} +#endif /* SLIP_RX_FROM_ISR */ +#endif /* LWIP_HAVE_SLIPIF */ diff --git a/middleware/lwip/src/netif/zepif.c b/middleware/lwip/src/netif/zepif.c new file mode 100644 index 0000000..de43b99 --- /dev/null +++ b/middleware/lwip/src/netif/zepif.c @@ -0,0 +1,300 @@ +/** + * @file + * + * @defgroup zepif ZEP - ZigBee Encapsulation Protocol + * @ingroup netifs + * A netif implementing the ZigBee Encapsulation Protocol (ZEP). + * This is used to tunnel 6LowPAN over UDP. + * + * Usage (there must be a default netif before!): + * @code{.c} + * netif_add(&zep_netif, NULL, NULL, NULL, NULL, zepif_init, tcpip_6lowpan_input); + * netif_create_ip6_linklocal_address(&zep_netif, 1); + * netif_set_up(&zep_netif); + * netif_set_link_up(&zep_netif); + * @endcode + */ + +/* + * Copyright (c) 2018 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "netif/zepif.h" + +#if LWIP_IPV6 && LWIP_UDP + +#include "netif/lowpan6.h" +#include "lwip/udp.h" +#include "lwip/timeouts.h" +#include + +/** Define this to 1 to loop back TX packets for testing */ +#ifndef ZEPIF_LOOPBACK +#define ZEPIF_LOOPBACK 0 +#endif + +#define ZEP_MAX_DATA_LEN 127 + +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/bpstruct.h" +#endif +PACK_STRUCT_BEGIN +struct zep_hdr { + PACK_STRUCT_FLD_8(u8_t prot_id[2]); + PACK_STRUCT_FLD_8(u8_t prot_version); + PACK_STRUCT_FLD_8(u8_t type); + PACK_STRUCT_FLD_8(u8_t channel_id); + PACK_STRUCT_FIELD(u16_t device_id); + PACK_STRUCT_FLD_8(u8_t crc_mode); + PACK_STRUCT_FLD_8(u8_t unknown_1); + PACK_STRUCT_FIELD(u32_t timestamp[2]); + PACK_STRUCT_FIELD(u32_t seq_num); + PACK_STRUCT_FLD_8(u8_t unknown_2[10]); + PACK_STRUCT_FLD_8(u8_t len); +} PACK_STRUCT_STRUCT; +PACK_STRUCT_END +#ifdef PACK_STRUCT_USE_INCLUDES +# include "arch/epstruct.h" +#endif + +struct zepif_state { + struct zepif_init init; + struct udp_pcb *pcb; + u32_t seqno; +}; + +static u8_t zep_lowpan_timer_running; + +/* Helper function that calls the 6LoWPAN timer and reschedules itself */ +static void +zep_lowpan_timer(void *arg) +{ + lowpan6_tmr(); + if (zep_lowpan_timer_running) { + sys_timeout(LOWPAN6_TMR_INTERVAL, zep_lowpan_timer, arg); + } +} + +/* Pass received pbufs into 6LowPAN netif */ +static void +zepif_udp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *addr, u16_t port) +{ + err_t err; + struct netif *netif_lowpan6 = (struct netif *)arg; + struct zep_hdr *zep; + + LWIP_ASSERT("arg != NULL", arg != NULL); + LWIP_ASSERT("pcb != NULL", pcb != NULL); + LWIP_UNUSED_ARG(pcb); /* for LWIP_NOASSERT */ + LWIP_UNUSED_ARG(addr); + LWIP_UNUSED_ARG(port); + if (p == NULL) { + return; + } + + /* Parse and hide the ZEP header */ + if (p->len < sizeof(struct zep_hdr)) { + /* need the zep_hdr in one piece */ + goto err_return; + } + zep = (struct zep_hdr *)p->payload; + if (zep->prot_id[0] != 'E') { + goto err_return; + } + if (zep->prot_id[1] != 'X') { + goto err_return; + } + if (zep->prot_version != 2) { + /* we only support this version for now */ + goto err_return; + } + if (zep->type != 1) { + goto err_return; + } + if (zep->crc_mode != 1) { + goto err_return; + } + if (zep->len != p->tot_len - sizeof(struct zep_hdr)) { + goto err_return; + } + /* everything seems to be OK, hide the ZEP header */ + if (pbuf_remove_header(p, sizeof(struct zep_hdr))) { + goto err_return; + } + /* TODO Check CRC? */ + /* remove CRC trailer */ + pbuf_realloc(p, p->tot_len - 2); + + /* Call into 6LoWPAN code. */ + err = netif_lowpan6->input(p, netif_lowpan6); + if (err == ERR_OK) { + return; + } +err_return: + pbuf_free(p); +} + +/* Send 6LoWPAN TX packets as UDP broadcast */ +static err_t +zepif_linkoutput(struct netif *netif, struct pbuf *p) +{ + err_t err; + struct pbuf *q; + struct zep_hdr *zep; + struct zepif_state *state; + + LWIP_ASSERT("invalid netif", netif != NULL); + LWIP_ASSERT("invalid pbuf", p != NULL); + + if (p->tot_len > ZEP_MAX_DATA_LEN) { + return ERR_VAL; + } + LWIP_ASSERT("TODO: support chained pbufs", p->next == NULL); + + state = (struct zepif_state *)netif->state; + LWIP_ASSERT("state->pcb != NULL", state->pcb != NULL); + + q = pbuf_alloc(PBUF_TRANSPORT, sizeof(struct zep_hdr) + p->tot_len, PBUF_RAM); + if (q == NULL) { + return ERR_MEM; + } + zep = (struct zep_hdr *)q->payload; + memset(zep, 0, sizeof(struct zep_hdr)); + zep->prot_id[0] = 'E'; + zep->prot_id[1] = 'X'; + zep->prot_version = 2; + zep->type = 1; /* Data */ + zep->channel_id = 0; /* whatever */ + zep->device_id = lwip_htons(1); /* whatever */ + zep->crc_mode = 1; + zep->unknown_1 = 0xff; + zep->seq_num = lwip_htonl(state->seqno); + state->seqno++; + zep->len = (u8_t)p->tot_len; + + err = pbuf_copy_partial_pbuf(q, p, p->tot_len, sizeof(struct zep_hdr)); + if (err == ERR_OK) { +#if ZEPIF_LOOPBACK + zepif_udp_recv(netif, state->pcb, pbuf_clone(PBUF_RAW, PBUF_RAM, q), NULL, 0); +#endif + err = udp_sendto(state->pcb, q, state->init.zep_dst_ip_addr, state->init.zep_dst_udp_port); + } + pbuf_free(q); + + return err; +} + +/** + * @ingroup zepif + * Set up a raw 6LowPAN netif and surround it with input- and output + * functions for ZEP + */ +err_t +zepif_init(struct netif *netif) +{ + err_t err; + struct zepif_init *init_state = (struct zepif_init *)netif->state; + struct zepif_state *state = (struct zepif_state *)mem_malloc(sizeof(struct zepif_state)); + + LWIP_ASSERT("zepif needs an input callback", netif->input != NULL); + + if (state == NULL) { + return ERR_MEM; + } + memset(state, 0, sizeof(struct zepif_state)); + if (init_state != NULL) { + memcpy(&state->init, init_state, sizeof(struct zepif_init)); + } + if (state->init.zep_src_udp_port == 0) { + state->init.zep_src_udp_port = ZEPIF_DEFAULT_UDP_PORT; + } + if (state->init.zep_dst_udp_port == 0) { + state->init.zep_dst_udp_port = ZEPIF_DEFAULT_UDP_PORT; + } +#if LWIP_IPV4 + if (state->init.zep_dst_ip_addr == NULL) { + /* With IPv4 enabled, default to broadcasting packets if no address is set */ + state->init.zep_dst_ip_addr = IP_ADDR_BROADCAST; + } +#endif /* LWIP_IPV4 */ + + netif->state = NULL; + + state->pcb = udp_new_ip_type(IPADDR_TYPE_ANY); + if (state->pcb == NULL) { + err = ERR_MEM; + goto err_ret; + } + err = udp_bind(state->pcb, state->init.zep_src_ip_addr, state->init.zep_src_udp_port); + if (err != ERR_OK) { + goto err_ret; + } + if (state->init.zep_netif != NULL) { + udp_bind_netif(state->pcb, state->init.zep_netif); + } + LWIP_ASSERT("udp_bind(lowpan6_broadcast_pcb) failed", err == ERR_OK); + ip_set_option(state->pcb, SOF_BROADCAST); + udp_recv(state->pcb, zepif_udp_recv, netif); + + err = lowpan6_if_init(netif); + LWIP_ASSERT("lowpan6_if_init set a state", netif->state == NULL); + if (err == ERR_OK) { + netif->state = state; + netif->hwaddr_len = 6; + if (init_state != NULL) { + memcpy(netif->hwaddr, init_state->addr, 6); + } else { + u8_t i; + for (i = 0; i < 6; i++) { + netif->hwaddr[i] = i; + } + netif->hwaddr[0] &= 0xfc; + } + netif->linkoutput = zepif_linkoutput; + + if (!zep_lowpan_timer_running) { + sys_timeout(LOWPAN6_TMR_INTERVAL, zep_lowpan_timer, NULL); + zep_lowpan_timer_running = 1; + } + + return ERR_OK; + } + +err_ret: + if (state->pcb != NULL) { + udp_remove(state->pcb); + } + mem_free(state); + return err; +} + +#endif /* LWIP_IPV6 && LWIP_UDP */ diff --git a/middleware/lwip/template/lwipopts.h b/middleware/lwip/template/lwipopts.h new file mode 100644 index 0000000..f605f98 --- /dev/null +++ b/middleware/lwip/template/lwipopts.h @@ -0,0 +1,357 @@ +/** + ****************************************************************************** + * @file lwipopts.h + * This file is based on \src\include\lwip\opt.h + ****************************************************************************** + * Copyright (c) 2013-2016, Freescale Semiconductor, Inc. + * Copyright 2016-2017 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef __LWIPOPTS_H__ +#define __LWIPOPTS_H__ + +#include "fsl_device_registers.h" + +#ifndef USE_RTOS +#ifdef FSL_RTOS_FREE_RTOS +#define USE_RTOS 1 +#else +#define USE_RTOS 0 +#endif /* FSL_RTOS_FREE_RTOS */ +#endif /* USE_RTOS */ + +#if USE_RTOS + +/** + * SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain + * critical regions during buffer allocation, deallocation and memory + * allocation and deallocation. + */ +#define SYS_LIGHTWEIGHT_PROT 1 + +/** + * NO_SYS==0: Use RTOS + */ +#define NO_SYS 0 + +/** + * LWIP_NETIF_API==1: Support netif api (in netifapi.c) + */ +#define LWIP_NETIF_API 1 + +/** + * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c) + */ +#define LWIP_NETCONN 1 +/** + * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c) + */ +#define LWIP_SOCKET 1 + +/** + * LWIP_SO_RCVTIMEO==1: Enable receive timeout for sockets/netconns and + * SO_RCVTIMEO processing. + */ +#define LWIP_SO_RCVTIMEO 1 + +#else +/** + * NO_SYS==1: Bare metal lwIP + */ +#define NO_SYS 1 +/** + * LWIP_NETCONN==0: Disable Netconn API (require to use api_lib.c) + */ +#define LWIP_NETCONN 0 +/** + * LWIP_SOCKET==0: Disable Socket API (require to use sockets.c) + */ +#define LWIP_SOCKET 0 + +/** + * LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT=1: we need to free PBUF_RAM pbufs + * from ISR context on LPC. + */ +#if defined(FSL_FEATURE_SOC_LPC_ENET_COUNT) && (FSL_FEATURE_SOC_LPC_ENET_COUNT > 0) +#ifndef LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT +#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 1 +#endif +#endif + +#endif + +/* ---------- Core locking ---------- */ + +#if !NO_SYS +#define LWIP_TCPIP_CORE_LOCKING 1 + +void sys_lock_tcpip_core(void); +#define LOCK_TCPIP_CORE() sys_lock_tcpip_core() + +void sys_unlock_tcpip_core(void); +#define UNLOCK_TCPIP_CORE() sys_unlock_tcpip_core() + +void sys_mark_tcpip_thread(void); +#define LWIP_MARK_TCPIP_THREAD() sys_mark_tcpip_thread() +#endif + +void sys_check_core_locking(void); +#define LWIP_ASSERT_CORE_LOCKED() sys_check_core_locking() + +/* ---------- Memory options ---------- */ +/** + * MEM_ALIGNMENT: should be set to the alignment of the CPU + * 4 byte alignment -> #define MEM_ALIGNMENT 4 + * 2 byte alignment -> #define MEM_ALIGNMENT 2 + */ +#ifndef MEM_ALIGNMENT +#define MEM_ALIGNMENT 4 +#endif + +/** + * MEM_SIZE: the size of the heap memory. If the application will send + * a lot of data that needs to be copied, this should be set high. + */ +#ifndef MEM_SIZE +#define MEM_SIZE (22*1024) +#endif + +/* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application + sends a lot of data out of ROM (or other static memory), this + should be set high. */ +#ifndef MEMP_NUM_PBUF +#define MEMP_NUM_PBUF 15 +#endif +/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One + per active UDP "connection". */ +#ifndef MEMP_NUM_UDP_PCB +#define MEMP_NUM_UDP_PCB 6 +#endif +/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP + connections. */ +#ifndef MEMP_NUM_TCP_PCB +#define MEMP_NUM_TCP_PCB 10 +#endif +/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP + connections. */ +#ifndef MEMP_NUM_TCP_PCB_LISTEN +#define MEMP_NUM_TCP_PCB_LISTEN 6 +#endif +/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP + segments. */ +#ifndef MEMP_NUM_TCP_SEG +#define MEMP_NUM_TCP_SEG 22 +#endif +/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active + timeouts. */ +#ifndef MEMP_NUM_SYS_TIMEOUT +#define MEMP_NUM_SYS_TIMEOUT 10 +#endif + +/* ---------- Pbuf options ---------- */ +/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */ +#ifndef PBUF_POOL_SIZE +#define PBUF_POOL_SIZE 9 +#endif + +/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */ +/* Default value is defined in lwip\src\include\lwip\opt.h as LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN)*/ + +/* ---------- TCP options ---------- */ +#ifndef LWIP_TCP +#define LWIP_TCP 1 +#endif + +#ifndef TCP_TTL +#define TCP_TTL 255 +#endif + +/* Controls if TCP should queue segments that arrive out of + order. Define to 0 if your device is low on memory. */ +#ifndef TCP_QUEUE_OOSEQ +#define TCP_QUEUE_OOSEQ 0 +#endif + +/* TCP Maximum segment size. */ +#ifndef TCP_MSS +#define TCP_MSS (1500 - 40) /* TCP_MSS = (Ethernet MTU - IP header size - TCP header size) */ +#endif + +/* TCP sender buffer space (bytes). */ +#ifndef TCP_SND_BUF +#define TCP_SND_BUF (6*TCP_MSS) //2 +#endif + +/* TCP sender buffer space (pbufs). This must be at least = 2 * + TCP_SND_BUF/TCP_MSS for things to work. */ +#ifndef TCP_SND_QUEUELEN +#define TCP_SND_QUEUELEN (3 * TCP_SND_BUF)/TCP_MSS //6 +#endif + +/* TCP receive window. */ +#ifndef TCP_WND +#define TCP_WND (2*TCP_MSS) +#endif + +/* Enable backlog*/ +#ifndef TCP_LISTEN_BACKLOG +#define TCP_LISTEN_BACKLOG 1 +#endif + +/* ---------- ICMP options ---------- */ +#ifndef LWIP_ICMP +#define LWIP_ICMP 1 +#endif + + +/* ---------- DHCP options ---------- */ +/* Define LWIP_DHCP to 1 if you want DHCP configuration of + interfaces. DHCP is not implemented in lwIP 0.5.1, however, so + turning this on does currently not work. */ +#ifndef LWIP_DHCP +#define LWIP_DHCP 1 +#endif + +/* ---------- UDP options ---------- */ +#ifndef LWIP_UDP +#define LWIP_UDP 1 +#endif +#ifndef UDP_TTL +#define UDP_TTL 255 +#endif + +/* ---------- Statistics options ---------- */ +#ifndef LWIP_STATS +#define LWIP_STATS 0 +#endif +#ifndef LWIP_PROVIDE_ERRNO +#define LWIP_PROVIDE_ERRNO 1 +#endif + +/* + -------------------------------------- + ---------- Checksum options ---------- + -------------------------------------- +*/ + +/* +Some MCU allow computing and verifying the IP, UDP, TCP and ICMP checksums by hardware: + - To use this feature let the following define uncommented. + - To disable it and process by CPU comment the the checksum. +*/ +//#define CHECKSUM_BY_HARDWARE + + +#ifdef CHECKSUM_BY_HARDWARE + /* CHECKSUM_GEN_IP==0: Generate checksums by hardware for outgoing IP packets.*/ + #define CHECKSUM_GEN_IP 0 + /* CHECKSUM_GEN_UDP==0: Generate checksums by hardware for outgoing UDP packets.*/ + #define CHECKSUM_GEN_UDP 0 + /* CHECKSUM_GEN_TCP==0: Generate checksums by hardware for outgoing TCP packets.*/ + #define CHECKSUM_GEN_TCP 0 + /* CHECKSUM_CHECK_IP==0: Check checksums by hardware for incoming IP packets.*/ + #define CHECKSUM_CHECK_IP 0 + /* CHECKSUM_CHECK_UDP==0: Check checksums by hardware for incoming UDP packets.*/ + #define CHECKSUM_CHECK_UDP 0 + /* CHECKSUM_CHECK_TCP==0: Check checksums by hardware for incoming TCP packets.*/ + #define CHECKSUM_CHECK_TCP 0 +#else + /* CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets.*/ + #define CHECKSUM_GEN_IP 1 + /* CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.*/ + #define CHECKSUM_GEN_UDP 1 + /* CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.*/ + #define CHECKSUM_GEN_TCP 1 + /* CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.*/ + #define CHECKSUM_CHECK_IP 1 + /* CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.*/ + #define CHECKSUM_CHECK_UDP 1 + /* CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets.*/ + #define CHECKSUM_CHECK_TCP 1 +#endif + +/** + * DEFAULT_THREAD_STACKSIZE: The stack size used by any other lwIP thread. + * The stack size value itself is platform-dependent, but is passed to + * sys_thread_new() when the thread is created. + */ +#ifndef DEFAULT_THREAD_STACKSIZE +#define DEFAULT_THREAD_STACKSIZE 3000 +#endif + +/** + * DEFAULT_THREAD_PRIO: The priority assigned to any other lwIP thread. + * The priority value itself is platform-dependent, but is passed to + * sys_thread_new() when the thread is created. + */ +#ifndef DEFAULT_THREAD_PRIO +#define DEFAULT_THREAD_PRIO 3 +#endif + +/* + ------------------------------------ + ---------- Debugging options ---------- + ------------------------------------ +*/ + +#define LWIP_DEBUG + +#ifdef LWIP_DEBUG +#define U8_F "c" +#define S8_F "c" +#define X8_F "02x" +#define U16_F "u" +#define S16_F "d" +#define X16_F "x" +#define U32_F "u" +#define S32_F "d" +#define X32_F "x" +#define SZT_F "u" +#endif + +#define TCPIP_MBOX_SIZE 32 +#define TCPIP_THREAD_STACKSIZE 1024 +#define TCPIP_THREAD_PRIO 8 + +/** + * DEFAULT_RAW_RECVMBOX_SIZE: The mailbox size for the incoming packets on a + * NETCONN_RAW. The queue size value itself is platform-dependent, but is passed + * to sys_mbox_new() when the recvmbox is created. + */ +#define DEFAULT_RAW_RECVMBOX_SIZE 12 + +/** + * DEFAULT_UDP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a + * NETCONN_UDP. The queue size value itself is platform-dependent, but is passed + * to sys_mbox_new() when the recvmbox is created. + */ +#define DEFAULT_UDP_RECVMBOX_SIZE 12 + +/** + * DEFAULT_TCP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a + * NETCONN_TCP. The queue size value itself is platform-dependent, but is passed + * to sys_mbox_new() when the recvmbox is created. + */ +#define DEFAULT_TCP_RECVMBOX_SIZE 12 + +/** + * DEFAULT_ACCEPTMBOX_SIZE: The mailbox size for the incoming connections. + * The queue size value itself is platform-dependent, but is passed to + * sys_mbox_new() when the acceptmbox is created. + */ +#define DEFAULT_ACCEPTMBOX_SIZE 12 + +#if (LWIP_DNS || LWIP_IGMP || LWIP_IPV6) && !defined(LWIP_RAND) + /* When using IGMP or IPv6, LWIP_RAND() needs to be defined to a random-function returning an u32_t random value*/ + #include "lwip/arch.h" + u32_t lwip_rand(void); + #define LWIP_RAND() lwip_rand() +#endif + +#endif /* __LWIPOPTS_H__ */ + +/*****END OF FILE****/ diff --git a/middleware/lwip/test/fuzz/Makefile b/middleware/lwip/test/fuzz/Makefile new file mode 100644 index 0000000..7a1dab3 --- /dev/null +++ b/middleware/lwip/test/fuzz/Makefile @@ -0,0 +1,61 @@ +# +# Copyright (c) 2001, 2002 Swedish Institute of Computer Science. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT +# SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT +# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY +# OF SUCH DAMAGE. +# +# This file is part of the lwIP TCP/IP stack. +# +# Author: Adam Dunkels +# + +all compile: lwip_fuzz lwip_fuzz2 lwip_fuzz3 +.PHONY: all clean + +CC?=afl-gcc +LDFLAGS=-lm +# use 'make D=-DUSER_DEFINE' to pass a user define to gcc +CFLAGS=-O0 $(D) + +LWIPDIR=../../src +CONTRIBDIR=../../contrib +include $(CONTRIBDIR)/ports/unix/Common.mk + +clean: + rm -f *.o $(LWIPLIBCOMMON) $(APPLIB) lwip_fuzz lwip_fuzz2 lwip_fuzz3 *.s .depend* *.core core + +depend dep: .depend + +include .depend + +.depend: fuzz.c fuzz2.c fuzz3.c fuzz_common.c $(LWIPFILES) $(APPFILES) + $(CCDEP) $(CFLAGS) -MM $^ > .depend || rm -f .depend + +lwip_fuzz: .depend $(LWIPLIBCOMMON) $(APPLIB) fuzz.o fuzz_common.o + $(CC) $(CFLAGS) -o lwip_fuzz fuzz.o fuzz_common.o $(APPLIB) $(LWIPLIBCOMMON) $(LDFLAGS) + +lwip_fuzz2: .depend $(LWIPLIBCOMMON) $(APPLIB) fuzz2.o fuzz_common.o + $(CC) $(CFLAGS) -o lwip_fuzz2 fuzz2.o fuzz_common.o $(APPLIB) $(LWIPLIBCOMMON) $(LDFLAGS) + +lwip_fuzz3: .depend $(LWIPLIBCOMMON) $(APPLIB) fuzz3.o fuzz_common.o + $(CC) $(CFLAGS) -o lwip_fuzz3 fuzz3.o fuzz_common.o $(APPLIB) $(LWIPLIBCOMMON) $(LDFLAGS) diff --git a/middleware/lwip/test/fuzz/README b/middleware/lwip/test/fuzz/README new file mode 100644 index 0000000..71c4e82 --- /dev/null +++ b/middleware/lwip/test/fuzz/README @@ -0,0 +1,33 @@ + +Fuzzing the lwIP stack (afl-fuzz requires linux/unix or similar) + +This directory contains small apps that read Ethernet frames from stdin and +process them. They are used together with the 'american fuzzy lop' tool (found +at http://lcamtuf.coredump.cx/afl/) and the sample inputs to test how +unexpected inputs are handled. The afl tool will read the known inputs, and +try to modify them to exercise as many code paths as possible, by instrumenting +the code and keeping track of which code is executed. + +Just running make will produce the test programs. + +Then run afl with: + +afl-fuzz -i inputs/ -o output ./lwip_fuzz + +and it should start working. It will probably complain about CPU scheduler, +set AFL_SKIP_CPUFREQ=1 to ignore it. +If it complains about invalid "/proc/sys/kernel/core_pattern" setting, try +executing "sudo bash -c 'echo core > /proc/sys/kernel/core_pattern'". + +The input is split into different subdirectories since they test different +parts of the code, and since you want to run one instance of afl-fuzz on each +core. + +When afl finds a crash or a hang, the input that caused it will be placed in +the output directory. If you have hexdump and text2pcap tools installed, +running output_to_pcap.sh will create pcap files for each input +file to simplify viewing in wireshark. + +The lwipopts.h file needs to have checksum checking off, otherwise almost every +packet will be discarded because of that. The other options can be tuned to +expose different parts of the code. diff --git a/middleware/lwip/test/fuzz/config.h b/middleware/lwip/test/fuzz/config.h new file mode 100644 index 0000000..e69de29 diff --git a/middleware/lwip/test/fuzz/fuzz.c b/middleware/lwip/test/fuzz/fuzz.c new file mode 100644 index 0000000..8eb453f --- /dev/null +++ b/middleware/lwip/test/fuzz/fuzz.c @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Simon Goldschmidt + * + */ + +#include "fuzz_common.h" + +int main(int argc, char** argv) +{ + return lwip_fuzztest(argc, argv, LWIP_FUZZ_SINGLE, LWIP_FUZZ_DEFAULT); +} diff --git a/middleware/lwip/test/fuzz/fuzz2.c b/middleware/lwip/test/fuzz/fuzz2.c new file mode 100644 index 0000000..b6a9ceb --- /dev/null +++ b/middleware/lwip/test/fuzz/fuzz2.c @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Simon Goldschmidt + * + */ + +#include "fuzz_common.h" + +int main(int argc, char** argv) +{ + return lwip_fuzztest(argc, argv, LWIP_FUZZ_MULTIPACKET, LWIP_FUZZ_DEFAULT); +} diff --git a/middleware/lwip/test/fuzz/fuzz3.c b/middleware/lwip/test/fuzz/fuzz3.c new file mode 100644 index 0000000..fc22991 --- /dev/null +++ b/middleware/lwip/test/fuzz/fuzz3.c @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Simon Goldschmidt + * + */ + +#include "fuzz_common.h" + +int main(int argc, char** argv) +{ + return lwip_fuzztest(argc, argv, LWIP_FUZZ_MULTIPACKET_TIME, + LWIP_FUZZ_STATICARP|LWIP_FUZZ_TCP_SERVER|LWIP_FUZZ_TCP_CLIENT|LWIP_FUZZ_UDP_SERVER|LWIP_FUZZ_UDP_CLIENT); +} diff --git a/middleware/lwip/test/fuzz/fuzz_common.c b/middleware/lwip/test/fuzz/fuzz_common.c new file mode 100644 index 0000000..da4b822 --- /dev/null +++ b/middleware/lwip/test/fuzz/fuzz_common.c @@ -0,0 +1,698 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * Simon Goldschmidt + * + */ + +#include "fuzz_common.h" + +#include "lwip/altcp_tcp.h" +#include "lwip/dns.h" +#include "lwip/init.h" +#include "lwip/netif.h" +#include "lwip/sys.h" +#include "lwip/timeouts.h" +#include "lwip/udp.h" +#include "netif/etharp.h" +#if LWIP_IPV6 +#include "lwip/ethip6.h" +#include "lwip/nd6.h" +#endif + +#include "lwip/apps/httpd.h" +#include "lwip/apps/snmp.h" +#include "lwip/apps/lwiperf.h" +#include "lwip/apps/mdns.h" + +#include +#include + +static u8_t pktbuf[200000]; +static const u8_t *remfuzz_ptr; /* remaining fuzz pointer */ +static size_t remfuzz_len; /* remaining fuzz length */ + +#ifndef FUZZ_DEBUG +#define FUZZ_DEBUG LWIP_DBG_OFF +#endif + +#ifdef LWIP_FUZZ_SYS_NOW +/* This offset should be added to the time 'sys_now()' returns */ +u32_t sys_now_offset; +#endif + +/** Set this to 1 and define FUZZ_DUMP_PCAP_FILE to dump tx and rx packets into + * a pcap file. At the same time, packet info is written via LWIP_DEBUGF so + * packets can be matched to other events for debugging them. + */ +#ifndef FUZZ_DUMP_PCAP +#define FUZZ_DUMP_PCAP 0 +#endif + +#if FUZZ_DUMP_PCAP +const u8_t pcap_file_header[24] = { + 0xd4, 0xc3, 0xb2, 0xa1, 0x02, 0x00, 0x04, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00 +}; + +static FILE* fpcap; +static u32_t pcap_packet; + +static void pcap_dump_init(void) +{ + fpcap = fopen(FUZZ_DUMP_PCAP_FILE, "wb"); + if (fpcap != NULL) { + /* write header */ + fwrite(pcap_file_header, 1, sizeof(pcap_file_header), fpcap); + } +} + +/* This function might have to be called from LWIP_PLATFORM_ASSERT() + * in order to produce correct pcap results on crash. + * Define this global so that for a test, we can call this from anywhere... + */ +void pcap_dump_stop(void); +void pcap_dump_stop(void) +{ + if (fpcap != NULL) { + fclose(fpcap); + fpcap = NULL; + } +} + +static void pcap_dump_packet(struct pbuf *p, int is_tx) +{ + if (fpcap != NULL) { + struct pbuf *q; + u32_t data; + pcap_packet++; + if (is_tx) { + LWIP_DEBUGF(FUZZ_DEBUG, ("> %d fuzz: netif: send %u bytes\n", pcap_packet, p->tot_len)); + } else { + LWIP_DEBUGF(FUZZ_DEBUG, ("< %d fuzz: RX packet of %u bytes\n", pcap_packet, p->tot_len)); + if (pcap_packet == 50 || pcap_packet == 33 || pcap_packet == 29) { + pcap_packet++; + pcap_packet--; + } + } + /* write packet header */ + fwrite(&pcap_packet, 1, sizeof(pcap_packet), fpcap); + data = 0; + fwrite(&data, 1, sizeof(data), fpcap); + data = p->tot_len; + fwrite(&data, 1, sizeof(data), fpcap); + fwrite(&data, 1, sizeof(data), fpcap); + /* write packet data */ + for(q = p; q != NULL; q = q->next) { + fwrite(q->payload, 1, q->len, fpcap); + } + } +} + +static void pcap_dump_rx_packet(struct pbuf *p) +{ + pcap_dump_packet(p, 0); +} + +static void pcap_dump_tx_packet(struct pbuf *p) +{ + pcap_dump_packet(p, 1); +} +#else /* FUZZ_DUMP_PCAP */ +#define pcap_dump_rx_packet(p) +#define pcap_dump_tx_packet(p) +#define pcap_dump_init() +#define pcap_dump_stop() +#endif /* FUZZ_DUMP_PCAP */ + +/* no-op send function */ +static err_t lwip_tx_func(struct netif *netif, struct pbuf *p) +{ + pcap_dump_tx_packet(p); + LWIP_UNUSED_ARG(netif); + LWIP_UNUSED_ARG(p); + return ERR_OK; +} + +static err_t testif_init(struct netif *netif) +{ + netif->name[0] = 'f'; + netif->name[1] = 'z'; + netif->output = etharp_output; + netif->linkoutput = lwip_tx_func; + netif->mtu = 1500; + netif->hwaddr_len = 6; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_IGMP; + + netif->hwaddr[0] = 0x00; + netif->hwaddr[1] = 0x23; + netif->hwaddr[2] = 0xC1; + netif->hwaddr[3] = 0xDE; + netif->hwaddr[4] = 0xD0; + netif->hwaddr[5] = 0x0D; + +#if LWIP_IPV6 + netif->output_ip6 = ethip6_output; + netif_create_ip6_linklocal_address(netif, 1); + netif->flags |= NETIF_FLAG_MLD6; +#endif + + return ERR_OK; +} + +static void input_pkt(struct netif *netif, const u8_t *data, size_t len) +{ + struct pbuf *p, *q; + err_t err; + + LWIP_ASSERT("pkt too big", len <= 0xFFFF); + p = pbuf_alloc(PBUF_RAW, (u16_t)len, PBUF_POOL); + LWIP_ASSERT("alloc failed", p); + for(q = p; q != NULL; q = q->next) { + MEMCPY(q->payload, data, q->len); + data += q->len; + } + remfuzz_ptr += len; + remfuzz_len -= len; + pcap_dump_rx_packet(p); + err = netif->input(p, netif); + if (err != ERR_OK) { + pbuf_free(p); + } +} + +static void input_pkts(enum lwip_fuzz_type type, struct netif *netif, const u8_t *data, size_t len) +{ + remfuzz_ptr = data; + remfuzz_len = len; + + if (type == LWIP_FUZZ_SINGLE) { + input_pkt(netif, data, len); + } else { + const u16_t max_packet_size = 1514; + const size_t minlen = sizeof(u16_t) + (type == LWIP_FUZZ_MULTIPACKET_TIME ? sizeof(u32_t) : 0); + + while (remfuzz_len > minlen) { + u16_t frame_len; +#ifdef LWIP_FUZZ_SYS_NOW + u32_t external_delay = 0; +#endif + if (type == LWIP_FUZZ_MULTIPACKET_TIME) { +#ifdef LWIP_FUZZ_SYS_NOW + /* Extract external delay time from fuzz pool */ + memcpy(&external_delay, remfuzz_ptr, sizeof(u32_t)); + external_delay = htonl(external_delay); +#endif + remfuzz_ptr += sizeof(u32_t); + remfuzz_len -= sizeof(u32_t); + } + memcpy(&frame_len, remfuzz_ptr, sizeof(u16_t)); + remfuzz_ptr += sizeof(u16_t); + remfuzz_len -= sizeof(u16_t); + frame_len = htons(frame_len) & 0x7FF; + frame_len = LWIP_MIN(frame_len, max_packet_size); + if (frame_len > remfuzz_len) { + frame_len = (u16_t)remfuzz_len; + } + if (frame_len != 0) { + if (type == LWIP_FUZZ_MULTIPACKET_TIME) { +#ifdef LWIP_FUZZ_SYS_NOW + /* Update total external delay time, and check timeouts */ + sys_now_offset += external_delay; + LWIP_DEBUGF(FUZZ_DEBUG, ("fuzz: sys_now_offset += %u -> %u\n", external_delay, sys_now_offset)); +#endif + sys_check_timeouts(); + } + input_pkt(netif, remfuzz_ptr, frame_len); + /* Check timeouts again */ + sys_check_timeouts(); + } + } + } +} + +#if LWIP_TCP +static struct altcp_pcb *tcp_client_pcb; /* a pcb for the TCP client */ +static struct altcp_pcb *tcp_server_pcb; /* a pcb for the TCP server */ +static u16_t tcp_remote_port; /* a TCP port number of the destionation */ +static u16_t tcp_local_port; /* a TCP port number of the local server */ + +/** + * tcp_app_fuzz_input + * Input fuzz with a write function for TCP. + */ +static void +tcp_app_fuzz_input(struct altcp_pcb *pcb) +{ + if (remfuzz_len > sizeof(u16_t)) { + /* + * (max IP packet size) - ((minimum IP header size) + (minimum TCP header size)) + * = 65535 - (20 + 20) + * = 65495 + */ + const u16_t max_data_size = 65495; + u16_t data_len; + + memcpy(&data_len, remfuzz_ptr, sizeof(u16_t)); + remfuzz_ptr += sizeof(u16_t); + remfuzz_len -= sizeof(u16_t); + data_len = htons(data_len); + data_len = LWIP_MIN(data_len, max_data_size); + if (data_len > remfuzz_len) { + data_len = (u16_t)remfuzz_len; + } + + if (data_len != 0) { + LWIP_DEBUGF(FUZZ_DEBUG, ("fuzz: tcp: write %u bytes\n", data_len)); + altcp_write(pcb, remfuzz_ptr, data_len, TCP_WRITE_FLAG_COPY); + altcp_output(pcb); + } else { + LWIP_DEBUGF(FUZZ_DEBUG, ("fuzz: tcp: close\n")); + altcp_close(pcb); + } + + remfuzz_ptr += data_len; + remfuzz_len -= data_len; + } +} + +/** + * tcp_client_connected + * A connected callback function (for the TCP client) + */ +static err_t +tcp_client_connected(void *arg, struct altcp_pcb *pcb, err_t err) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(err); + + LWIP_DEBUGF(FUZZ_DEBUG, ("fuzz: tcp: tcp_client_connected\n")); + tcp_app_fuzz_input(pcb); + + return ERR_OK; +} + +/** + * tcp_client_recv + * A recv callback function (for the TCP client) + */ +static err_t +tcp_client_recv(void *arg, struct altcp_pcb *pcb, struct pbuf *p, err_t err) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(err); + + if (p == NULL) { + altcp_close(pcb); + } else { + altcp_recved(pcb, p->tot_len); + LWIP_DEBUGF(FUZZ_DEBUG, ("fuzz: tcp: tcp_client_recv: %d\n", p->tot_len)); + tcp_app_fuzz_input(pcb); + pbuf_free(p); + } + + return ERR_OK; +} + +/** + * tcp_client_sent + * A sent callback function (for the TCP client) + */ +static err_t +tcp_client_sent(void *arg, struct altcp_pcb *pcb, u16_t len) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(len); + return ERR_OK; +} + +/** + * tcp_client_poll + * A poll callback function (for the TCP client) + */ +static err_t +tcp_client_poll(void *arg, struct altcp_pcb *pcb) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(pcb); + return ERR_OK; +} + +/** + * tcp_client_err + * An err callback function (for the TCP client) + */ +static void +tcp_client_err(void *arg, err_t err) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(err); +} + +/** + * tcp_server_recv + * A recv callback function (for the TCP server) + */ +static err_t +tcp_server_recv(void *arg, struct altcp_pcb *pcb, struct pbuf *p, err_t err) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(err); + + if (p == NULL) { + altcp_close(pcb); + } else { + altcp_recved(pcb, p->tot_len); + LWIP_DEBUGF(FUZZ_DEBUG, ("fuzz: tcp: tcp_server_recv: %d\n", p->tot_len)); + tcp_app_fuzz_input(pcb); + pbuf_free(p); + } + + return ERR_OK; +} + +/** + * tcp_server_sent + * A sent callback function (for the TCP server) + */ +static err_t +tcp_server_sent(void *arg, struct altcp_pcb *pcb, u16_t len) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(pcb); + LWIP_UNUSED_ARG(len); + return ERR_OK; +} + +/** + * tcp_server_poll + * A poll callback function (for the TCP server) + */ +static err_t +tcp_server_poll(void *arg, struct altcp_pcb *pcb) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(pcb); + return ERR_OK; +} + +/** + * tcp_server_err + * An err callbuck function (for the TCP server) + */ +static void +tcp_server_err(void *arg, err_t err) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(err); +} + +/** + * tcp_server_accept + * An accept callbuck function (for the TCP server) + */ +static err_t +tcp_server_accept(void *arg, struct altcp_pcb *pcb, err_t err) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(err); + + if ((err != ERR_OK) || (pcb == NULL)) { + return ERR_VAL; + } + LWIP_DEBUGF(FUZZ_DEBUG, ("fuzz: accept from remote\n")); + + altcp_setprio(pcb, TCP_PRIO_MIN); + + altcp_recv(pcb, tcp_server_recv); + altcp_err(pcb, tcp_server_err); + altcp_poll(pcb, tcp_server_poll, 10); + altcp_sent(pcb, tcp_server_sent); + + return ERR_OK; +} +#endif /* LWIP_TCP */ + +#if LWIP_UDP +static struct udp_pcb *udp_client_pcb; /* a pcb for the UDP client */ +static struct udp_pcb *udp_server_pcb; /* a pcb for the UDP server */ +static u16_t udp_remote_port; /* a UDP port number of the destination */ +static u16_t udp_local_port; /* a UDP port number of the local server*/ + +/** + * udp_app_fuzz_input + * Input fuzz with write functions for UDP. + */ +static void +udp_app_fuzz_input(struct udp_pcb *pcb, const ip_addr_t *addr, u16_t port) +{ + if (remfuzz_len > sizeof(u16_t)) { + /* + * (max IP packet size) - ((minimum IP header size) - (minimum UDP header size)) + * = 65535 - (20 + 8) + * = 65507 + */ + const u16_t max_data_size = 65507; + u16_t data_len; + + memcpy(&data_len, remfuzz_ptr, sizeof(u16_t)); + remfuzz_ptr += sizeof(u16_t); + remfuzz_len -= sizeof(u16_t); + data_len = htons(data_len); + data_len = LWIP_MIN(data_len, max_data_size); + if (data_len > remfuzz_len) { + data_len = (u16_t)remfuzz_len; + } + + LWIP_DEBUGF(FUZZ_DEBUG, ("fuzz: udp: send %u bytes\n", data_len)); + if (data_len != 0) { + struct pbuf *p, *q; + + p = pbuf_alloc(PBUF_RAW, (u16_t)data_len, PBUF_POOL); + LWIP_ASSERT("alloc failed", p); + + for (q = p; q != NULL; q = q->next) { + MEMCPY(q->payload, remfuzz_ptr, q->len); + remfuzz_ptr += q->len; + } + remfuzz_len -= data_len; + + /* + * Trying input from ... + * + * client: + * The pcb has information about the destination. + * We use udp_send(). + * + * server: + * The pcb does NOT have infomation about the destionation. + * We use udp_sendto(). + */ + if (addr == NULL) { + udp_send(pcb, p); + } else { + udp_sendto(pcb, p, addr, port); + } + pbuf_free(p); + } + } +} + +/** + * udp_client_recv + * A recv callback function (for the UDP client) + */ +static void +udp_client_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(p); + LWIP_UNUSED_ARG(addr); + LWIP_UNUSED_ARG(port); + + if (p == NULL) { + udp_disconnect(pcb); + } else { + /* + * We call the function with 2nd argument set to NULL + * to input fuzz from udp_send. + */ + udp_app_fuzz_input(pcb, NULL, port); + pbuf_free(p); + } +} + +/** + * udp_server_recv + * A recv callback functyion (for the UDP server) + */ +static void +udp_server_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) +{ + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(p); + LWIP_UNUSED_ARG(addr); + LWIP_UNUSED_ARG(port); + + if (p != NULL) { + udp_app_fuzz_input(pcb, addr, port); + pbuf_free(p); + } +} +#endif /* LWIP_UDP */ + +int lwip_fuzztest(int argc, char** argv, enum lwip_fuzz_type type, u32_t test_apps) +{ + struct netif net_test; + ip4_addr_t addr; + ip4_addr_t netmask; + ip4_addr_t gw; + size_t len; + err_t err; + ip_addr_t remote_addr; /* a IPv4 addr of the destination */ + struct eth_addr remote_mac = ETH_ADDR(0x28, 0x00, 0x00, 0x22, 0x2b, 0x38); /* a MAC addr of the destination */ + + pcap_dump_init(); + lwip_init(); + + IP4_ADDR(&addr, 172, 30, 115, 84); + IP4_ADDR(&netmask, 255, 255, 255, 0); + IP4_ADDR(&gw, 172, 30, 115, 1); + + netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input); + netif_set_up(&net_test); + netif_set_link_up(&net_test); + + if (test_apps & LWIP_FUZZ_STATICARP) { + /* Add the ARP entry */ + IP_ADDR4(&remote_addr, 172, 30, 115, 37); + etharp_add_static_entry(&(remote_addr.u_addr.ip4), &remote_mac); + } + +#if LWIP_IPV6 + nd6_tmr(); /* tick nd to join multicast groups */ +#endif + dns_setserver(0, &net_test.gw); + + if (test_apps & LWIP_FUZZ_DEFAULT) { + /* initialize apps */ + httpd_init(); + lwiperf_start_tcp_server_default(NULL, NULL); + mdns_resp_init(); + mdns_resp_add_netif(&net_test, "hostname"); + snmp_init(); + } + if (test_apps & LWIP_FUZZ_TCP_CLIENT) { + tcp_client_pcb = altcp_tcp_new_ip_type(IPADDR_TYPE_ANY); + LWIP_ASSERT("Error: altcp_new() failed", tcp_client_pcb != NULL); + tcp_remote_port = 80; + err = altcp_connect(tcp_client_pcb, &remote_addr, tcp_remote_port, tcp_client_connected); + LWIP_ASSERT("Error: altcp_connect() failed", err == ERR_OK); + altcp_recv(tcp_client_pcb, tcp_client_recv); + altcp_err(tcp_client_pcb, tcp_client_err); + altcp_poll(tcp_client_pcb, tcp_client_poll, 10); + altcp_sent(tcp_client_pcb, tcp_client_sent); + } + if (test_apps & LWIP_FUZZ_TCP_SERVER) { + tcp_server_pcb = altcp_tcp_new_ip_type(IPADDR_TYPE_ANY); + LWIP_ASSERT("Error: altcp_new() failed", tcp_server_pcb != NULL); + altcp_setprio(tcp_server_pcb, TCP_PRIO_MIN); + tcp_local_port = 80; + err = altcp_bind(tcp_server_pcb, IP_ANY_TYPE, tcp_local_port); + LWIP_ASSERT("Error: altcp_bind() failed", err == ERR_OK); + tcp_server_pcb = altcp_listen(tcp_server_pcb); + LWIP_ASSERT("Error: altcp_listen() failed", err == ERR_OK); + altcp_accept(tcp_server_pcb, tcp_server_accept); + } + if (test_apps & LWIP_FUZZ_UDP_CLIENT) { + udp_client_pcb = udp_new(); + udp_new_ip_type(IPADDR_TYPE_ANY); + udp_recv(udp_client_pcb, udp_client_recv, NULL); + udp_remote_port = 161; + udp_connect(udp_client_pcb, &remote_addr, udp_remote_port); + } + if (test_apps & LWIP_FUZZ_UDP_SERVER) { + udp_server_pcb = udp_new(); + udp_new_ip_type(IPADDR_TYPE_ANY); + udp_local_port = 161; + udp_bind(udp_server_pcb, IP_ANY_TYPE, udp_local_port); + udp_recv(udp_server_pcb, udp_server_recv, NULL); + } + + if(argc > 1) { + FILE* f; + const char* filename; + printf("reading input from file... "); + fflush(stdout); + filename = argv[1]; + LWIP_ASSERT("invalid filename", filename != NULL); + f = fopen(filename, "rb"); + LWIP_ASSERT("open failed", f != NULL); + len = fread(pktbuf, 1, sizeof(pktbuf), f); + fclose(f); + printf("testing file: \"%s\"...\r\n", filename); + } else { + len = fread(pktbuf, 1, sizeof(pktbuf), stdin); + } + input_pkts(type, &net_test, pktbuf, len); + + pcap_dump_stop(); + return 0; +} + +#ifdef LWIP_RAND_FOR_FUZZ +u32_t lwip_fuzz_rand(void) +{ +#ifdef LWIP_RAND_FOR_FUZZ_SIMULATE_GLIBC + /* this is what glibc rand() returns (first 20 numbers) */ + static u32_t rand_nrs[] = {0x6b8b4567, 0x327b23c6, 0x643c9869, 0x66334873, 0x74b0dc51, + 0x19495cff, 0x2ae8944a, 0x625558ec, 0x238e1f29, 0x46e87ccd, + 0x3d1b58ba, 0x507ed7ab, 0x2eb141f2, 0x41b71efb, 0x79e2a9e3, + 0x7545e146, 0x515f007c, 0x5bd062c2, 0x12200854, 0x4db127f8}; + static unsigned idx = 0; + u32_t ret = rand_nrs[idx]; + idx++; + if (idx >= sizeof(rand_nrs)/sizeof((rand_nrs)[0])) { + idx = 0; + } + return ret; +#else + /* a simple LCG, unsafe but should give the same result for every execution (best for fuzzing) */ + u32_t result; + static s32_t state[1] = {0xdeadbeef}; + s32_t val = state[0]; + val = ((state[0] * 1103515245) + 12345) & 0x7fffffff; + state[0] = val; + result = val; + return result; +#endif +} +#endif diff --git a/middleware/lwip/test/fuzz/fuzz_common.h b/middleware/lwip/test/fuzz/fuzz_common.h new file mode 100644 index 0000000..79784e7 --- /dev/null +++ b/middleware/lwip/test/fuzz/fuzz_common.h @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2001-2004 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_FUZZ_COMMON_H +#define LWIP_HDR_FUZZ_COMMON_H + +#include "lwip/opt.h" +#include "lwip/arch.h" + +#ifdef __cplusplus +extern "C" { +#endif + +enum lwip_fuzz_type { + LWIP_FUZZ_SINGLE = 0, + LWIP_FUZZ_MULTIPACKET = 1, + LWIP_FUZZ_MULTIPACKET_TIME = 2 +}; + +/* bitmask of what to test: */ +#define LWIP_FUZZ_DEFAULT 0x01 +#define LWIP_FUZZ_STATICARP 0x02 +#define LWIP_FUZZ_TCP_SERVER 0x04 +#define LWIP_FUZZ_TCP_CLIENT 0x08 +#define LWIP_FUZZ_UDP_SERVER 0x10 +#define LWIP_FUZZ_UDP_CLIENT 0x20 + +int lwip_fuzztest(int argc, char** argv, enum lwip_fuzz_type type, u32_t test_apps); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_FUZZ_COMMON_H */ diff --git a/middleware/lwip/test/fuzz/inputs/arp/arp_req.bin b/middleware/lwip/test/fuzz/inputs/arp/arp_req.bin new file mode 100644 index 0000000..b317334 Binary files /dev/null and b/middleware/lwip/test/fuzz/inputs/arp/arp_req.bin differ diff --git a/middleware/lwip/test/fuzz/inputs/icmp/icmp_ping.bin b/middleware/lwip/test/fuzz/inputs/icmp/icmp_ping.bin new file mode 100644 index 0000000..87e1ea7 Binary files /dev/null and b/middleware/lwip/test/fuzz/inputs/icmp/icmp_ping.bin differ diff --git a/middleware/lwip/test/fuzz/inputs/ipv6/neighbor_solicitation.bin b/middleware/lwip/test/fuzz/inputs/ipv6/neighbor_solicitation.bin new file mode 100644 index 0000000..d2f921c Binary files /dev/null and b/middleware/lwip/test/fuzz/inputs/ipv6/neighbor_solicitation.bin differ diff --git a/middleware/lwip/test/fuzz/inputs/ipv6/router_adv.bin b/middleware/lwip/test/fuzz/inputs/ipv6/router_adv.bin new file mode 100644 index 0000000..3aa9615 Binary files /dev/null and b/middleware/lwip/test/fuzz/inputs/ipv6/router_adv.bin differ diff --git a/middleware/lwip/test/fuzz/inputs/tcp/tcp_syn.bin b/middleware/lwip/test/fuzz/inputs/tcp/tcp_syn.bin new file mode 100644 index 0000000..d77f6d2 Binary files /dev/null and b/middleware/lwip/test/fuzz/inputs/tcp/tcp_syn.bin differ diff --git a/middleware/lwip/test/fuzz/inputs/udp/udp_port_5000.bin b/middleware/lwip/test/fuzz/inputs/udp/udp_port_5000.bin new file mode 100644 index 0000000..d77e267 Binary files /dev/null and b/middleware/lwip/test/fuzz/inputs/udp/udp_port_5000.bin differ diff --git a/middleware/lwip/test/fuzz/lwipopts.h b/middleware/lwip/test/fuzz/lwipopts.h new file mode 100644 index 0000000..1492fd9 --- /dev/null +++ b/middleware/lwip/test/fuzz/lwipopts.h @@ -0,0 +1,84 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_LWIPOPTS_H__ +#define LWIP_HDR_LWIPOPTS_H__ + +#define MEMP_NUM_SYS_TIMEOUT 17 +#define LWIP_FUZZ_SYS_NOW +#define LWIP_RAND_FOR_FUZZ + +/* Prevent having to link sys_arch.c (we don't test the API layers in unit tests) */ +#define NO_SYS 1 +#define LWIP_NETCONN 0 +#define LWIP_SOCKET 0 +#define SYS_LIGHTWEIGHT_PROT 0 + +#define LWIP_IPV6 1 +#define IPV6_FRAG_COPYHEADER 1 +#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 0 + +/* Enable some protocols to test them */ +#define LWIP_DHCP 1 +#define LWIP_AUTOIP 1 + +#define LWIP_IGMP 1 +#define LWIP_DNS 1 + +#define LWIP_ALTCP 1 + +/* Turn off checksum verification of fuzzed data */ +#define CHECKSUM_CHECK_IP 0 +#define CHECKSUM_CHECK_UDP 0 +#define CHECKSUM_CHECK_TCP 0 +#define CHECKSUM_CHECK_ICMP 0 +#define CHECKSUM_CHECK_ICMP6 0 + +/* Minimal changes to opt.h required for tcp unit tests: */ +#define MEM_SIZE 16000 +#define TCP_SND_QUEUELEN 40 +#define MEMP_NUM_TCP_SEG TCP_SND_QUEUELEN +#define TCP_OVERSIZE 1 +#define TCP_SND_BUF (12 * TCP_MSS) +#define TCP_WND (10 * TCP_MSS) +#define LWIP_WND_SCALE 1 +#define TCP_RCV_SCALE 2 +#define PBUF_POOL_SIZE 400 /* pbuf tests need ~200KByte */ + +/* Minimal changes to opt.h required for etharp unit tests: */ +#define ETHARP_SUPPORT_STATIC_ENTRIES 1 + +#define LWIP_NUM_NETIF_CLIENT_DATA 1 +#define LWIP_SNMP 1 +#define MIB2_STATS 1 +#define LWIP_MDNS_RESPONDER 1 + +#endif /* LWIP_HDR_LWIPOPTS_H__ */ diff --git a/middleware/lwip/test/fuzz/output_to_pcap.sh b/middleware/lwip/test/fuzz/output_to_pcap.sh new file mode 100644 index 0000000..c999ff0 --- /dev/null +++ b/middleware/lwip/test/fuzz/output_to_pcap.sh @@ -0,0 +1,31 @@ +#!/bin/bash + +if [ -z "$1" ] +then + echo "This script will make pcap files from the afl-fuzz crash/hang files" + echo "It needs hexdump and text2pcap" + echo "Please give output directory as argument" + exit 2 +fi + +for i in `ls $1/crashes/id*` +do + PCAPNAME=`echo $i | grep pcap` + if [ -z "$PCAPNAME" ]; then + hexdump -C $i > $1/$$.tmp + text2pcap $1/$$.tmp ${i}.pcap + fi +done +for i in `ls $1/hangs/id*` +do + PCAPNAME=`echo $i | grep pcap` + if [ -z "$PCAPNAME" ]; then + hexdump -C $i > $1/$$.tmp + text2pcap $1/$$.tmp ${i}.pcap + fi +done +rm -f $1/$$.tmp + +echo +echo "Created pcap files:" +ls $1/*/*.pcap diff --git a/middleware/lwip/test/sockets/sockets_stresstest.c b/middleware/lwip/test/sockets/sockets_stresstest.c new file mode 100644 index 0000000..3ac553b --- /dev/null +++ b/middleware/lwip/test/sockets/sockets_stresstest.c @@ -0,0 +1,726 @@ +/** + * @file + * Sockets stresstest + * + * This file uses the lwIP socket API to do stress tests that should test the + * stability when used in many different situations, with many concurrent + * sockets making concurrent transfers in different manners. + * + * - test rely on loopback sockets for now, so netif drivers are not tested + * - all enabled functions shall be used + * - parallelism of the tests depend on enough resources being available + * (configure your lwipopts.h settings high enough) + * - test should also be able to run in a real target + * + * TODO: + * - full duplex + * - add asserts about internal socket/netconn/pcb state? + */ + + /* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#include "lwip/opt.h" +#include "sockets_stresstest.h" + +#include "lwip/sockets.h" +#include "lwip/sys.h" + +#include "lwip/mem.h" + +#include +#include + +#if LWIP_SOCKET && LWIP_IPV4 /* this uses IPv4 loopback sockets, currently */ + +#ifndef TEST_SOCKETS_STRESS +#define TEST_SOCKETS_STRESS LWIP_DBG_OFF +#endif + +#define TEST_TIME_SECONDS 10 +#define TEST_TXRX_BUFSIZE (TCP_MSS * 2) +#define TEST_MAX_RXWAIT_MS 50 +#define TEST_MAX_CONNECTIONS 50 + +#define TEST_SOCK_READABLE 0x01 +#define TEST_SOCK_WRITABLE 0x02 +#define TEST_SOCK_ERR 0x04 + +#define TEST_MODE_SELECT 0x01 +#define TEST_MODE_POLL 0x02 +#define TEST_MODE_NONBLOCKING 0x04 +#define TEST_MODE_WAIT 0x08 +#define TEST_MODE_RECVTIMEO 0x10 +#define TEST_MODE_SLEEP 0x20 + +static int sockets_stresstest_numthreads; + +struct test_settings { + struct sockaddr_storage addr; + int start_client; + int loop_cnt; +}; + +struct sockets_stresstest_fullduplex { + int s; + volatile int closed; +}; + +static void +fill_test_data(void *buf, size_t buf_len_bytes) +{ + u8_t *p = (u8_t*)buf; + u16_t i, chk; + + LWIP_ASSERT("buffer too short", buf_len_bytes >= 4); + LWIP_ASSERT("buffer too big", buf_len_bytes <= 0xFFFF); + /* store the total number of bytes */ + p[0] = (u8_t)(buf_len_bytes >> 8); + p[1] = (u8_t)buf_len_bytes; + + /* fill buffer with random */ + chk = 0; + for (i = 4; i < buf_len_bytes; i++) { + u8_t rnd = (u8_t)LWIP_RAND(); + p[i] = rnd; + chk += rnd; + } + /* store checksum */ + p[2] = (u8_t)(chk >> 8); + p[3] = (u8_t)chk; +} + +static size_t +check_test_data(const void *buf, size_t buf_len_bytes) +{ + u8_t *p = (u8_t*)buf; + u16_t i, chk, chk_rx, len_rx; + + LWIP_ASSERT("buffer too short", buf_len_bytes >= 4); + len_rx = (((u16_t)p[0]) << 8) | p[1]; + LWIP_ASSERT("len too short", len_rx >= 4); + if (len_rx > buf_len_bytes) { + /* not all data received in this segment */ + LWIP_DEBUGF(TEST_SOCKETS_STRESS | LWIP_DBG_TRACE, ("check-\n")); + return buf_len_bytes; + } + chk_rx = (((u16_t)p[2]) << 8) | p[3]; + /* calculate received checksum */ + chk = 0; + for (i = 4; i < len_rx; i++) { + chk += p[i]; + } + LWIP_ASSERT("invalid checksum", chk == chk_rx); + if (len_rx < buf_len_bytes) { + size_t data_left = buf_len_bytes - len_rx; + memmove(p, &p[len_rx], data_left); + return data_left; + } + /* if we come here, we received exactly one chunk + -> next offset is 0 */ + return 0; +} + +static size_t +recv_and_check_data_return_offset(int s, char *rxbuf, size_t rxbufsize, size_t rxoff, int *closed, const char *dbg) +{ + ssize_t ret; + + ret = lwip_read(s, &rxbuf[rxoff], rxbufsize - rxoff); + if (ret == 0) { + *closed = 1; + return rxoff; + } + *closed = 0; + LWIP_DEBUGF(TEST_SOCKETS_STRESS | LWIP_DBG_TRACE, ("%s %d rx %d\n", dbg, s, (int)ret)); + if (ret == -1) { + /* TODO: for this to work, 'errno' has to support multithreading... */ + int err = errno; + if (err == ENOTCONN) { + *closed = 1; + return 0; + } + LWIP_ASSERT("err == 0", err == 0); + } + LWIP_ASSERT("ret > 0", ret > 0); + return check_test_data(rxbuf, rxoff + ret); +} + +#if LWIP_SOCKET_SELECT +static int +sockets_stresstest_wait_readable_select(int s, int timeout_ms) +{ + int ret; + struct timeval tv; + fd_set fs_r; + fd_set fs_w; + fd_set fs_e; + + FD_ZERO(&fs_r); + FD_ZERO(&fs_w); + FD_ZERO(&fs_e); + + FD_SET(s, &fs_r); + FD_SET(s, &fs_e); + + tv.tv_sec = timeout_ms / 1000; + tv.tv_usec = (timeout_ms - (tv.tv_sec * 1000)) * 1000; + ret = lwip_select(s + 1, &fs_r, &fs_w, &fs_e, &tv); + LWIP_ASSERT("select error", ret >= 0); + if (ret) { + /* convert poll flags to our flags */ + ret = 0; + if (FD_ISSET(s, &fs_r)) { + ret |= TEST_SOCK_READABLE; + } + if (FD_ISSET(s, &fs_w)) { + ret |= TEST_SOCK_WRITABLE; + } + if (FD_ISSET(s, &fs_e)) { + ret |= TEST_SOCK_ERR; + } + return ret; + } + return 0; +} +#endif + +#if LWIP_SOCKET_POLL +static int +sockets_stresstest_wait_readable_poll(int s, int timeout_ms) +{ + int ret; + struct pollfd pfd; + + pfd.fd = s; + pfd.revents = 0; + pfd.events = POLLIN | POLLERR; + + ret = lwip_poll(&pfd, 1, timeout_ms); + if (ret) { + /* convert poll flags to our flags */ + ret = 0; + if (pfd.revents & POLLIN) { + ret |= TEST_SOCK_READABLE; + } + if (pfd.revents & POLLOUT) { + ret |= TEST_SOCK_WRITABLE; + } + if (pfd.revents & POLLERR) { + ret |= TEST_SOCK_ERR; + } + return ret; + } + return 0; +} +#endif + +#if LWIP_SO_RCVTIMEO +static int +sockets_stresstest_wait_readable_recvtimeo(int s, int timeout_ms) +{ + int ret; + char buf; +#if LWIP_SO_SNDRCVTIMEO_NONSTANDARD + int opt_on = timeout_ms; + int opt_off = 0; +#else + struct timeval opt_on, opt_off; + opt_on.tv_sec = timeout_ms / 1000; + opt_on.tv_usec = (timeout_ms - (opt_on.tv_sec * 1000)) * 1000; + opt_off.tv_sec = 0; + opt_off.tv_usec = 0; +#endif + + /* enable receive timeout */ + ret = lwip_setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &opt_on, sizeof(opt_on)); + LWIP_ASSERT("setsockopt error", ret == 0); + + /* peek for one byte with timeout */ + ret = lwip_recv(s, &buf, 1, MSG_PEEK); + + /* disable receive timeout */ + ret = lwip_setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &opt_off, sizeof(opt_off)); + LWIP_ASSERT("setsockopt error", ret == 0); + + if (ret == 1) { + return TEST_SOCK_READABLE; + } + if (ret == 0) { + return 0; + } + if (ret == -1) { + return TEST_SOCK_ERR; + } + LWIP_ASSERT("invalid return value", 0); + return TEST_SOCK_ERR; +} +#endif + +static int +sockets_stresstest_wait_readable_wait_peek(int s, int timeout_ms) +{ + int ret; + char buf; + + LWIP_UNUSED_ARG(timeout_ms); /* cannot time out here */ + + /* peek for one byte */ + ret = lwip_recv(s, &buf, 1, MSG_PEEK); + + if (ret == 1) { + return TEST_SOCK_READABLE; + } + if (ret == 0) { + return 0; + } + if (ret == -1) { + return TEST_SOCK_ERR; + } + LWIP_ASSERT("invalid return value", 0); + return TEST_SOCK_ERR; +} + +static int +sockets_stresstest_wait_readable_nonblock(int s, int timeout_ms) +{ + int ret; + char buf; + u32_t wait_until = sys_now() + timeout_ms; + + while(sys_now() < wait_until) { + /* peek for one byte */ + ret = lwip_recv(s, &buf, 1, MSG_PEEK | MSG_DONTWAIT); + + if (ret == 1) { + return TEST_SOCK_READABLE; + } + if (ret == -1) { + /* TODO: for this to work, 'errno' has to support multithreading... */ + int err = errno; + if (err != EWOULDBLOCK) { + return TEST_SOCK_ERR; + } + } + /* TODO: sleep? */ + } + return 0; +} + +static int sockets_stresstest_rand_mode(int allow_wait, int allow_rx) +{ + u32_t random_value = LWIP_RAND(); +#if LWIP_SOCKET_SELECT + if (random_value & TEST_MODE_SELECT) { + return TEST_MODE_SELECT; + } +#endif +#if LWIP_SOCKET_POLL + if (random_value & TEST_MODE_POLL) { + return TEST_MODE_POLL; + } +#endif + if (!allow_rx) { + return TEST_MODE_SLEEP; + } +#if LWIP_SO_RCVTIMEO + if (random_value & TEST_MODE_RECVTIMEO) { + return TEST_MODE_RECVTIMEO; + } +#endif + if (allow_wait) { + if (random_value & TEST_MODE_RECVTIMEO) { + return TEST_MODE_RECVTIMEO; + } + } + return TEST_MODE_NONBLOCKING; +} + +static int +sockets_stresstest_wait_readable(int mode, int s, int timeout_ms) +{ + switch(mode) + { +#if LWIP_SOCKET_SELECT + case TEST_MODE_SELECT: + return sockets_stresstest_wait_readable_select(s, timeout_ms); +#endif +#if LWIP_SOCKET_POLL + case TEST_MODE_POLL: + return sockets_stresstest_wait_readable_poll(s, timeout_ms); +#endif +#if LWIP_SO_RCVTIMEO + case TEST_MODE_RECVTIMEO: + return sockets_stresstest_wait_readable_recvtimeo(s, timeout_ms); +#endif + case TEST_MODE_WAIT: + return sockets_stresstest_wait_readable_wait_peek(s, timeout_ms); + case TEST_MODE_NONBLOCKING: + return sockets_stresstest_wait_readable_nonblock(s, timeout_ms); + case TEST_MODE_SLEEP: + { + sys_msleep(timeout_ms); + return 1; + } + default: + LWIP_ASSERT("invalid mode", 0); + break; + } + return 0; +} + +#if LWIP_NETCONN_FULLDUPLEX +static void +sockets_stresstest_conn_client_r(void *arg) +{ + struct sockets_stresstest_fullduplex *fd = (struct sockets_stresstest_fullduplex *)arg; + int s = fd->s; + size_t rxoff = 0; + char rxbuf[TEST_TXRX_BUFSIZE]; + + while (1) { + int closed; + if (fd->closed) { + break; + } + rxoff = recv_and_check_data_return_offset(s, rxbuf, sizeof(rxbuf), rxoff, &closed, "cli"); + if (fd->closed) { + break; + } + if (closed) { + lwip_close(s); + break; + } + } + + SYS_ARCH_DEC(sockets_stresstest_numthreads, 1); + LWIP_ASSERT("", sockets_stresstest_numthreads >= 0); +} +#endif + +static void +sockets_stresstest_conn_client(void *arg) +{ + struct sockaddr_storage addr; + struct sockaddr_in *addr_in; + int s, ret; + char txbuf[TEST_TXRX_BUFSIZE]; + char rxbuf[TEST_TXRX_BUFSIZE]; + size_t rxoff = 0; + u32_t max_time = sys_now() + (TEST_TIME_SECONDS * 1000); + int do_rx = 1; + struct sockets_stresstest_fullduplex *data = NULL; + + memcpy(&addr, arg, sizeof(addr)); + LWIP_ASSERT("", addr.ss_family == AF_INET); + addr_in = (struct sockaddr_in *)&addr; + addr_in->sin_addr.s_addr = inet_addr("127.0.0.1"); + + /* sleep a random time between 1 and 2 seconds */ + sys_msleep(1000 + (LWIP_RAND() % 1000)); + + /* connect to the server */ + s = lwip_socket(addr.ss_family, SOCK_STREAM, 0); + LWIP_ASSERT("s >= 0", s >= 0); + +#if LWIP_NETCONN_FULLDUPLEX + if (LWIP_RAND() & 1) { + sys_thread_t t; + data = (struct sockets_stresstest_fullduplex*)mem_malloc(sizeof(struct sockets_stresstest_fullduplex)); + LWIP_ASSERT("data != NULL", data != 0); + SYS_ARCH_INC(sockets_stresstest_numthreads, 1); + data->s = s; + data->closed = 0; + t = sys_thread_new("sockets_stresstest_conn_client_r", sockets_stresstest_conn_client_r, data, 0, 0); + LWIP_ASSERT("thread != NULL", t != 0); + do_rx = 0; + } +#endif + + /* @todo: nonblocking connect? */ + ret = lwip_connect(s, (struct sockaddr *)&addr, sizeof(struct sockaddr_storage)); + LWIP_ASSERT("ret == 0", ret == 0); + + while (sys_now() < max_time) { + int closed; + int mode = sockets_stresstest_rand_mode(0, do_rx); + int timeout_ms = LWIP_RAND() % TEST_MAX_RXWAIT_MS; + ret = sockets_stresstest_wait_readable(mode, s, timeout_ms); + if (ret) { + if (do_rx) { + /* read some */ + LWIP_ASSERT("readable", ret == TEST_SOCK_READABLE); + rxoff = recv_and_check_data_return_offset(s, rxbuf, sizeof(rxbuf), rxoff, &closed, "cli"); + LWIP_ASSERT("client got closed", !closed); + } + } else { + /* timeout, send some */ + size_t send_len = (LWIP_RAND() % (sizeof(txbuf) - 4)) + 4; + fill_test_data(txbuf, send_len); + LWIP_DEBUGF(TEST_SOCKETS_STRESS | LWIP_DBG_TRACE, ("cli %d tx %d\n", s, (int)send_len)); + ret = lwip_write(s, txbuf, send_len); + if (ret == -1) { + /* TODO: for this to work, 'errno' has to support multithreading... */ + int err = errno; + LWIP_ASSERT("err == 0", err == 0); + } + LWIP_ASSERT("ret == send_len", ret == (int)send_len); + } + } + if (data) { + data->closed = 1; + } + ret = lwip_close(s); + LWIP_ASSERT("ret == 0", ret == 0); + + SYS_ARCH_DEC(sockets_stresstest_numthreads, 1); + LWIP_ASSERT("", sockets_stresstest_numthreads >= 0); +} + +static void +sockets_stresstest_conn_server(void *arg) +{ + int s, ret; + char txbuf[TEST_TXRX_BUFSIZE]; + char rxbuf[TEST_TXRX_BUFSIZE]; + size_t rxoff = 0; + + s = (int)arg; + + while (1) { + int closed; + int mode = sockets_stresstest_rand_mode(1, 1); + int timeout_ms = LWIP_RAND() % TEST_MAX_RXWAIT_MS; + ret = sockets_stresstest_wait_readable(mode, s, timeout_ms); + if (ret) { + if (ret & TEST_SOCK_ERR) { + /* closed? */ + break; + } + /* read some */ + LWIP_ASSERT("readable", ret == TEST_SOCK_READABLE); + rxoff = recv_and_check_data_return_offset(s, rxbuf, sizeof(rxbuf), rxoff, &closed, "srv"); + if (closed) { + break; + } + } else { + /* timeout, send some */ + size_t send_len = (LWIP_RAND() % (sizeof(txbuf) - 4)) + 4; + fill_test_data(txbuf, send_len); + LWIP_DEBUGF(TEST_SOCKETS_STRESS | LWIP_DBG_TRACE, ("srv %d tx %d\n", s, (int)send_len)); + ret = lwip_write(s, txbuf, send_len); + if (ret == -1) { + /* TODO: for this to work, 'errno' has to support multithreading... */ + int err = errno; + if (err == ECONNRESET) { + break; + } + if (err == ENOTCONN) { + break; + } + LWIP_ASSERT("unknown error", 0); + } + LWIP_ASSERT("ret == send_len", ret == (int)send_len); + } + } + ret = lwip_close(s); + LWIP_ASSERT("ret == 0", ret == 0); + + SYS_ARCH_DEC(sockets_stresstest_numthreads, 1); + LWIP_ASSERT("", sockets_stresstest_numthreads >= 0); +} + +static int +sockets_stresstest_start_clients(const struct sockaddr_storage *remote_addr) +{ + /* limit the number of connections */ + const int max_connections = LWIP_MIN(TEST_MAX_CONNECTIONS, MEMP_NUM_TCP_PCB/3); + int i; + + for (i = 0; i < max_connections; i++) { + sys_thread_t t; + SYS_ARCH_INC(sockets_stresstest_numthreads, 1); + t = sys_thread_new("sockets_stresstest_conn_client", sockets_stresstest_conn_client, (void*)remote_addr, 0, 0); + LWIP_ASSERT("thread != NULL", t != 0); + } + return max_connections; +} + +static void +sockets_stresstest_listener(void *arg) +{ + int slisten; + int ret; + struct sockaddr_storage addr; + socklen_t addr_len; + struct test_settings *settings = (struct test_settings *)arg; + int num_clients, num_servers = 0; + + slisten = lwip_socket(AF_INET, SOCK_STREAM, 0); + LWIP_ASSERT("slisten >= 0", slisten >= 0); + + memcpy(&addr, &settings->addr, sizeof(struct sockaddr_storage)); + ret = lwip_bind(slisten, (struct sockaddr *)&addr, sizeof(addr)); + LWIP_ASSERT("ret == 0", ret == 0); + + ret = lwip_listen(slisten, 0); + LWIP_ASSERT("ret == 0", ret == 0); + + addr_len = sizeof(addr); + ret = lwip_getsockname(slisten, (struct sockaddr *)&addr, &addr_len); + LWIP_ASSERT("ret == 0", ret == 0); + + num_clients = sockets_stresstest_start_clients(&addr); + + while (num_servers < num_clients) { + struct sockaddr_storage aclient; + socklen_t aclient_len = sizeof(aclient); + int sclient = lwip_accept(slisten, (struct sockaddr *)&aclient, &aclient_len); +#if 1 + /* using server threads */ + { + sys_thread_t t; + SYS_ARCH_INC(sockets_stresstest_numthreads, 1); + num_servers++; + t = sys_thread_new("sockets_stresstest_conn_server", sockets_stresstest_conn_server, (void*)sclient, 0, 0); + LWIP_ASSERT("thread != NULL", t != 0); + } +#else + /* using server select */ +#endif + } + LWIP_DEBUGF(TEST_SOCKETS_STRESS | LWIP_DBG_STATE, ("sockets_stresstest_listener: all %d connections established\n", num_clients)); + + /* accepted all clients */ + while (sockets_stresstest_numthreads > 0) { + sys_msleep(1); + } + + ret = lwip_close(slisten); + LWIP_ASSERT("ret == 0", ret == 0); + + LWIP_DEBUGF(TEST_SOCKETS_STRESS |LWIP_DBG_STATE, ("sockets_stresstest_listener: done\n")); +} + +static void +sockets_stresstest_listener_loop(void *arg) +{ + int i; + struct test_settings *settings = (struct test_settings *)arg; + + if (settings->loop_cnt) { + for (i = 0; i < settings->loop_cnt; i++) { + LWIP_DEBUGF(TEST_SOCKETS_STRESS |LWIP_DBG_STATE, ("sockets_stresstest_listener_loop: iteration %d\n", i)); + sockets_stresstest_listener(arg); + sys_msleep(2); + } + LWIP_DEBUGF(TEST_SOCKETS_STRESS |LWIP_DBG_STATE, ("sockets_stresstest_listener_loop: done\n")); + } else { + for (i = 0; ; i++) { + LWIP_DEBUGF(TEST_SOCKETS_STRESS |LWIP_DBG_STATE, ("sockets_stresstest_listener_loop: iteration %d\n", i)); + sockets_stresstest_listener(arg); + sys_msleep(2); + } + } +} + +void +sockets_stresstest_init_loopback(int addr_family) +{ + sys_thread_t t; + struct test_settings *settings = (struct test_settings *)mem_malloc(sizeof(struct test_settings)); + + LWIP_ASSERT("OOM", settings != NULL); + memset(settings, 0, sizeof(struct test_settings)); +#if LWIP_IPV4 && LWIP_IPV6 + LWIP_ASSERT("invalid addr_family", (addr_family == AF_INET) || (addr_family == AF_INET6)); +#endif + settings->addr.ss_family = (sa_family_t)addr_family; + LWIP_UNUSED_ARG(addr_family); + settings->start_client = 1; + + t = sys_thread_new("sockets_stresstest_listener_loop", sockets_stresstest_listener_loop, settings, 0, 0); + LWIP_ASSERT("thread != NULL", t != 0); +} + +void +sockets_stresstest_init_server(int addr_family, u16_t server_port) +{ + sys_thread_t t; + struct test_settings *settings = (struct test_settings *)mem_malloc(sizeof(struct test_settings)); + + LWIP_ASSERT("OOM", settings != NULL); + memset(settings, 0, sizeof(struct test_settings)); +#if LWIP_IPV4 && LWIP_IPV6 + LWIP_ASSERT("invalid addr_family", (addr_family == AF_INET) || (addr_family == AF_INET6)); + settings->addr.ss_family = (sa_family_t)addr_family; +#endif + LWIP_UNUSED_ARG(addr_family); + ((struct sockaddr_in *)(&settings->addr))->sin_port = server_port; + + t = sys_thread_new("sockets_stresstest_listener", sockets_stresstest_listener, settings, 0, 0); + LWIP_ASSERT("thread != NULL", t != 0); +} + +void +sockets_stresstest_init_client(const char *remote_ip, u16_t remote_port) +{ +#if LWIP_IPV4 + ip4_addr_t ip4; +#endif +#if LWIP_IPV6 + ip6_addr_t ip6; +#endif + struct sockaddr_storage *addr = (struct sockaddr_storage *)mem_malloc(sizeof(struct sockaddr_storage)); + + LWIP_ASSERT("OOM", addr != NULL); + memset(addr, 0, sizeof(struct test_settings)); +#if LWIP_IPV4 + if (ip4addr_aton(remote_ip, &ip4)) { + addr->ss_family = AF_INET; + ((struct sockaddr_in *)addr)->sin_addr.s_addr = ip4_addr_get_u32(&ip4); + } +#endif +#if LWIP_IPV4 && LWIP_IPV6 + else +#endif +#if LWIP_IPV6 + if (ip6addr_aton(remote_ip, &ip6)) { + addr->ss_family = AF_INET6; + /* todo: copy ipv6 address */ + } +#endif + ((struct sockaddr_in *)addr)->sin_port = remote_port; + sockets_stresstest_start_clients(addr); +} + +#endif /* LWIP_SOCKET && LWIP_IPV4 */ diff --git a/middleware/lwip/test/sockets/sockets_stresstest.h b/middleware/lwip/test/sockets/sockets_stresstest.h new file mode 100644 index 0000000..178e604 --- /dev/null +++ b/middleware/lwip/test/sockets/sockets_stresstest.h @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + +#ifndef LWIP_HDR_TEST_SOCKETS_STRESSTEST +#define LWIP_HDR_TEST_SOCKETS_STRESSTEST + +void sockets_stresstest_init_loopback(int addr_family); +void sockets_stresstest_init_server(int addr_family, u16_t server_port); +void sockets_stresstest_init_client(const char *remote_ip, u16_t remote_port); + +#endif /* LWIP_HDR_TEST_SOCKETS_STRESSTEST */ diff --git a/middleware/lwip/test/unit/Filelists.mk b/middleware/lwip/test/unit/Filelists.mk new file mode 100644 index 0000000..bb8160a --- /dev/null +++ b/middleware/lwip/test/unit/Filelists.mk @@ -0,0 +1,52 @@ +# +# Copyright (c) 2001, 2002 Swedish Institute of Computer Science. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT +# SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT +# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY +# OF SUCH DAMAGE. +# +# This file is part of the lwIP TCP/IP stack. +# +# Author: Adam Dunkels +# + +TESTDIR=$(LWIPDIR)/../test/unit +TESTFILES=$(TESTDIR)/lwip_unittests.c \ + $(TESTDIR)/api/test_sockets.c \ + $(TESTDIR)/arch/sys_arch.c \ + $(TESTDIR)/core/test_def.c \ + $(TESTDIR)/core/test_dns.c \ + $(TESTDIR)/core/test_mem.c \ + $(TESTDIR)/core/test_netif.c \ + $(TESTDIR)/core/test_pbuf.c \ + $(TESTDIR)/core/test_timers.c \ + $(TESTDIR)/dhcp/test_dhcp.c \ + $(TESTDIR)/etharp/test_etharp.c \ + $(TESTDIR)/ip4/test_ip4.c \ + $(TESTDIR)/ip6/test_ip6.c \ + $(TESTDIR)/mdns/test_mdns.c \ + $(TESTDIR)/mqtt/test_mqtt.c \ + $(TESTDIR)/tcp/tcp_helper.c \ + $(TESTDIR)/tcp/test_tcp_oos.c \ + $(TESTDIR)/tcp/test_tcp.c \ + $(TESTDIR)/udp/test_udp.c + diff --git a/middleware/lwip/test/unit/api/test_sockets.c b/middleware/lwip/test/unit/api/test_sockets.c new file mode 100644 index 0000000..3faa5ff --- /dev/null +++ b/middleware/lwip/test/unit/api/test_sockets.c @@ -0,0 +1,852 @@ +#include "test_sockets.h" + +#include "lwip/mem.h" +#include "lwip/opt.h" +#include "lwip/sockets.h" +#include "lwip/priv/sockets_priv.h" +#include "lwip/stats.h" + +#include "lwip/tcpip.h" +#include "lwip/priv/tcp_priv.h" +#include "lwip/api.h" + + +static int +test_sockets_get_used_count(void) +{ + int used = 0; + int i; + + for (i = 0; i < NUM_SOCKETS; i++) { + struct lwip_sock* s = lwip_socket_dbg_get_socket(i); + if (s != NULL) { + if (s->fd_used) { + used++; + } + } + } + return used; +} + + +/* Setups/teardown functions */ + +static void +sockets_setup(void) +{ + /* expect full free heap */ + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +sockets_teardown(void) +{ + fail_unless(test_sockets_get_used_count() == 0); + /* poll until all memory is released... */ + tcpip_thread_poll_one(); + while (tcp_tw_pcbs) { + tcp_abort(tcp_tw_pcbs); + tcpip_thread_poll_one(); + } + tcpip_thread_poll_one(); + /* ensure full free heap */ + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +#ifndef NUM_SOCKETS +#define NUM_SOCKETS MEMP_NUM_NETCONN +#endif + +#if LWIP_SOCKET +static int +test_sockets_alloc_socket_nonblocking(int domain, int type) +{ + int s = lwip_socket(domain, type, 0); + if (s >= 0) { + int ret = lwip_fcntl(s, F_SETFL, O_NONBLOCK); + fail_unless(ret == 0); + } + return s; +} + +/* Verify basic sockets functionality + */ +START_TEST(test_sockets_basics) +{ + int s, i, ret; + int s2[NUM_SOCKETS]; + LWIP_UNUSED_ARG(_i); + + s = lwip_socket(AF_INET, SOCK_STREAM, 0); + fail_unless(s >= 0); + lwip_close(s); + + for (i = 0; i < NUM_SOCKETS; i++) { + s2[i] = lwip_socket(AF_INET, SOCK_STREAM, 0); + fail_unless(s2[i] >= 0); + } + + /* all sockets used, now it should fail */ + s = lwip_socket(AF_INET, SOCK_STREAM, 0); + fail_unless(s == -1); + /* close one socket */ + ret = lwip_close(s2[0]); + fail_unless(ret == 0); + /* now it should succeed */ + s2[0] = lwip_socket(AF_INET, SOCK_STREAM, 0); + fail_unless(s2[0] >= 0); + + /* close all sockets */ + for (i = 0; i < NUM_SOCKETS; i++) { + ret = lwip_close(s2[i]); + fail_unless(ret == 0); + } +} +END_TEST + +static void test_sockets_allfunctions_basic_domain(int domain) +{ + int s, s2, s3, ret; + struct sockaddr_storage addr, addr2; + socklen_t addrlen, addr2len; + char buf[4]; + /* listen socket */ + s = lwip_socket(domain, SOCK_STREAM, 0); + fail_unless(s >= 0); + + ret = lwip_listen(s, 0); + fail_unless(ret == 0); + + addrlen = sizeof(addr); + ret = lwip_getsockname(s, (struct sockaddr*)&addr, &addrlen); + fail_unless(ret == 0); + + s2 = test_sockets_alloc_socket_nonblocking(domain, SOCK_STREAM); + fail_unless(s2 >= 0); + /* nonblocking connect s2 to s (but use loopback address) */ + if (domain == AF_INET) { +#if LWIP_IPV4 + struct sockaddr_in *addr4 = (struct sockaddr_in *)&addr; + addr4->sin_addr.s_addr = PP_HTONL(INADDR_LOOPBACK); +#endif + } else { +#if LWIP_IPV6 + struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&addr; + struct in6_addr lo6 = IN6ADDR_LOOPBACK_INIT; + addr6->sin6_addr = lo6; +#endif + } + ret = lwip_connect(s2, (struct sockaddr*)&addr, addrlen); + fail_unless(ret == -1); + fail_unless(errno == EINPROGRESS); + ret = lwip_connect(s2, (struct sockaddr*)&addr, addrlen); + fail_unless(ret == -1); + fail_unless(errno == EALREADY); + + while(tcpip_thread_poll_one()); + + s3 = lwip_accept(s, (struct sockaddr*)&addr2, &addr2len); + fail_unless(s3 >= 0); + + ret = lwip_connect(s2, (struct sockaddr*)&addr, addrlen); + fail_unless(ret == -1); + fail_unless(errno == EISCONN); + + /* write from server to client */ + ret = lwip_write(s3, "test", 4); + fail_unless(ret == 4); + + ret = lwip_shutdown(s3, SHUT_WR); + fail_unless(ret == 0); + + while(tcpip_thread_poll_one()); + + ret = lwip_recv(s2, buf, 3, MSG_PEEK); + fail_unless(ret == 3); + + ret = lwip_recv(s2, buf, 3, MSG_PEEK); + fail_unless(ret == 3); + + ret = lwip_read(s2, buf, 4); + fail_unless(ret == 4); + + ret = lwip_read(s2, buf, 1); + fail_unless(ret == 0); + + ret = lwip_read(s2, buf, 1); + fail_unless(ret == -1); + + ret = lwip_write(s2, "foo", 3); + fail_unless(ret == 3); + + ret = lwip_close(s2); + fail_unless(ret == 0); + + while(tcpip_thread_poll_one()); + + /* read one byte more than available to check handling FIN */ + ret = lwip_read(s3, buf, 4); + fail_unless(ret == 3); + + ret = lwip_read(s3, buf, 1); + fail_unless(ret == 0); + + ret = lwip_read(s3, buf, 1); + fail_unless(ret == -1); + + while(tcpip_thread_poll_one()); + + ret = lwip_close(s); + fail_unless(ret == 0); + ret = lwip_close(s3); + fail_unless(ret == 0); +} + +/* Try to step through all sockets functions once... + */ +START_TEST(test_sockets_allfunctions_basic) +{ + LWIP_UNUSED_ARG(_i); +#if LWIP_IPV4 + test_sockets_allfunctions_basic_domain(AF_INET); +#endif +#if LWIP_IPV6 + test_sockets_allfunctions_basic_domain(AF_INET6); +#endif +} +END_TEST + +static void test_sockets_init_loopback_addr(int domain, struct sockaddr_storage *addr_st, socklen_t *sz) +{ + memset(addr_st, 0, sizeof(*addr_st)); + switch(domain) { +#if LWIP_IPV6 + case AF_INET6: { + struct sockaddr_in6 *addr = (struct sockaddr_in6*)addr_st; + struct in6_addr lo6 = IN6ADDR_LOOPBACK_INIT; + addr->sin6_family = AF_INET6; + addr->sin6_port = 0; /* use ephemeral port */ + addr->sin6_addr = lo6; + *sz = sizeof(*addr); + } + break; +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 + case AF_INET: { + struct sockaddr_in *addr = (struct sockaddr_in*)addr_st; + addr->sin_family = AF_INET; + addr->sin_port = 0; /* use ephemeral port */ + addr->sin_addr.s_addr = PP_HTONL(INADDR_LOOPBACK); + *sz = sizeof(*addr); + } + break; +#endif /* LWIP_IPV4 */ + default: + *sz = 0; + fail(); + break; + } +} + +static void test_sockets_msgapi_update_iovs(struct msghdr *msg, size_t bytes) +{ + msg_iovlen_t i; + + /* note: this modifies the underyling iov_base and iov_len for a partial + read for an individual vector. This updates the msg->msg_iov pointer + to skip fully consumed vectors */ + + /* process fully consumed vectors */ + for (i = 0; i < msg->msg_iovlen; i++) { + if (msg->msg_iov[i].iov_len <= bytes) { + /* reduce bytes by amount of this vector */ + bytes -= msg->msg_iov[i].iov_len; + } else { + break; /* iov not fully consumed */ + } + } + + /* slide down over fully consumed vectors */ + msg->msg_iov = &msg->msg_iov[i]; + msg->msg_iovlen -= i; + + /* update new first vector with any remaining amount */ + msg->msg_iov[0].iov_base = ((u8_t *)msg->msg_iov[0].iov_base + bytes); + msg->msg_iov[0].iov_len -= bytes; +} + +static void test_sockets_msgapi_tcp(int domain) +{ + #define BUF_SZ (TCP_SND_BUF/4) + #define TOTAL_DATA_SZ (BUF_SZ*8) /* ~(TCP_SND_BUF*2) that accounts for integer rounding */ + #define NEED_TRAILER (BUF_SZ % 4 != 0) + int listnr, s1, s2, i, ret, opt; + int bytes_written, bytes_read; + struct sockaddr_storage addr_storage; + socklen_t addr_size; + struct iovec siovs[8]; + struct msghdr smsg; + u8_t * snd_buf; + struct iovec riovs[5]; + struct iovec riovs_tmp[5]; + struct msghdr rmsg; + u8_t * rcv_buf; + int rcv_off; + int rcv_trailer = 0; + u8_t val; + + test_sockets_init_loopback_addr(domain, &addr_storage, &addr_size); + + listnr = test_sockets_alloc_socket_nonblocking(domain, SOCK_STREAM); + fail_unless(listnr >= 0); + s1 = test_sockets_alloc_socket_nonblocking(domain, SOCK_STREAM); + fail_unless(s1 >= 0); + + /* setup a listener socket on loopback with ephemeral port */ + ret = lwip_bind(listnr, (struct sockaddr*)&addr_storage, addr_size); + fail_unless(ret == 0); + ret = lwip_listen(listnr, 0); + fail_unless(ret == 0); + + /* update address with ephemeral port */ + ret = lwip_getsockname(listnr, (struct sockaddr*)&addr_storage, &addr_size); + fail_unless(ret == 0); + + /* connect, won't complete until we accept it */ + ret = lwip_connect(s1, (struct sockaddr*)&addr_storage, addr_size); + fail_unless(ret == -1); + fail_unless(errno == EINPROGRESS); + + while (tcpip_thread_poll_one()); + + /* accept, creating the other side of the connection */ + s2 = lwip_accept(listnr, NULL, NULL); + fail_unless(s2 >= 0); + + /* double check s1 is connected */ + ret = lwip_connect(s1, (struct sockaddr*)&addr_storage, addr_size); + fail_unless(ret == -1); + fail_unless(errno == EISCONN); + + /* set s2 to non-blocking, not inherited from listener */ + opt = lwip_fcntl(s2, F_GETFL, 0); + fail_unless(opt == O_RDWR); + opt = O_NONBLOCK; + ret = lwip_fcntl(s2, F_SETFL, opt); + fail_unless(ret == 0); + + /* we are done with listener, close it */ + ret = lwip_close(listnr); + fail_unless(ret == 0); + + /* allocate a buffer for a stream of incrementing hex (0x00..0xFF) which we will use + to create an input vector set that is larger than the TCP's send buffer. This will + force execution of the partial IO vector send case */ + snd_buf = (u8_t*)mem_malloc(BUF_SZ); + val = 0x00; + fail_unless(snd_buf != NULL); + for (i = 0; i < BUF_SZ; i++,val++) { + snd_buf[i] = val; + } + + /* send the buffer 8 times in one message, equating to TOTAL_DATA_SZ */ + for (i = 0; i < 8; i++) { + siovs[i].iov_base = snd_buf; + siovs[i].iov_len = BUF_SZ; + } + + /* allocate a receive buffer, same size as snd_buf for easy verification */ + rcv_buf = (u8_t*)mem_calloc(1, BUF_SZ); + fail_unless(rcv_buf != NULL); + /* split across iovs */ + for (i = 0; i < 4; i++) { + riovs[i].iov_base = &rcv_buf[i*(BUF_SZ/4)]; + riovs[i].iov_len = BUF_SZ/4; + } + /* handling trailing bytes if buffer doesn't evenly divide by 4 */ +#if NEED_TRAILER + if ((BUF_SZ % 4) != 0) { + riovs[5].iov_base = &rcv_buf[4*(BUF_SZ/4)]; + riovs[5].iov_len = BUF_SZ - (4*(BUF_SZ/4)); + rcv_trailer = 1; + } +#endif /* NEED_TRAILER */ + + /* we use a copy of riovs since we'll be modifying base and len during + receiving. This gives us an easy way to reset the iovs for next recvmsg */ + memcpy(riovs_tmp, riovs, sizeof(riovs)); + + memset(&smsg, 0, sizeof(smsg)); + smsg.msg_iov = siovs; + smsg.msg_iovlen = 8; + + memset(&rmsg, 0, sizeof(rmsg)); + rmsg.msg_iov = riovs_tmp; + rmsg.msg_iovlen = (rcv_trailer ? 5 : 4); + + bytes_written = 0; + bytes_read = 0; + rcv_off = 0; + + while (bytes_written < TOTAL_DATA_SZ && (bytes_read < TOTAL_DATA_SZ)) { + /* send data */ + if (bytes_written < TOTAL_DATA_SZ) { + ret = lwip_sendmsg(s1, &smsg, 0); + /* note: since we always receive after sending, there will be open + space in the send buffer */ + fail_unless(ret > 0); + + bytes_written += ret; + if (bytes_written < TOTAL_DATA_SZ) { + test_sockets_msgapi_update_iovs(&smsg, (size_t)ret); + } + } + + while (tcpip_thread_poll_one()); + + /* receive and verify data */ + do { + if (bytes_read < TOTAL_DATA_SZ) { + ret = lwip_recvmsg(s2, &rmsg, 0); + fail_unless(ret > 0 || (ret == -1 && errno == EWOULDBLOCK)); + + if (ret > 0) { + rcv_off += ret; + /* we have received a full buffer */ + if (rcv_off == BUF_SZ) { + /* note: since iovs are just pointers, compare underlying buf */ + fail_unless(!memcmp(snd_buf, rcv_buf, BUF_SZ)); + bytes_read += BUF_SZ; + /* reset receive state for next buffer */ + rcv_off = 0; + memset(rcv_buf, 0, BUF_SZ); + memcpy(riovs_tmp, riovs, sizeof(riovs)); + rmsg.msg_iov = riovs_tmp; + rmsg.msg_iovlen = (rcv_trailer ? 5 : 4); + } else { /* partial read */ + test_sockets_msgapi_update_iovs(&rmsg, (size_t)ret); + } + } + } else { + break; + } + } while(ret > 0); + } + + ret = lwip_close(s1); + fail_unless(ret == 0); + ret = lwip_close(s2); + fail_unless(ret == 0); + mem_free(snd_buf); + mem_free(rcv_buf); +} + +static void test_sockets_msgapi_udp_send_recv_loop(int s, struct msghdr *smsg, struct msghdr *rmsg) +{ + int i, ret; + + /* send/receive our datagram of IO vectors 10 times */ + for (i = 0; i < 10; i++) { + ret = lwip_sendmsg(s, smsg, 0); + fail_unless(ret == 4); + + while (tcpip_thread_poll_one()); + + /* receive the datagram split across 4 buffers */ + ret = lwip_recvmsg(s, rmsg, 0); + fail_unless(ret == 4); + + /* verify data */ + fail_unless(*((u8_t*)rmsg->msg_iov[0].iov_base) == 0xDE); + fail_unless(*((u8_t*)rmsg->msg_iov[1].iov_base) == 0xAD); + fail_unless(*((u8_t*)rmsg->msg_iov[2].iov_base) == 0xBE); + fail_unless(*((u8_t*)rmsg->msg_iov[3].iov_base) == 0xEF); + + /* clear rcv_buf to ensure no data is being skipped */ + *((u8_t*)rmsg->msg_iov[0].iov_base) = 0x00; + *((u8_t*)rmsg->msg_iov[1].iov_base) = 0x00; + *((u8_t*)rmsg->msg_iov[2].iov_base) = 0x00; + *((u8_t*)rmsg->msg_iov[3].iov_base) = 0x00; + } +} + +static void test_sockets_msgapi_udp(int domain) +{ + int s, i, ret; + struct sockaddr_storage addr_storage; + socklen_t addr_size; + struct iovec riovs[4]; + struct msghdr rmsg; + u8_t rcv_buf[4]; + struct iovec siovs[4]; + struct msghdr smsg; + u8_t snd_buf[4] = {0xDE, 0xAD, 0xBE, 0xEF}; + + /* initialize IO vectors with data */ + for (i = 0; i < 4; i++) { + siovs[i].iov_base = &snd_buf[i]; + siovs[i].iov_len = sizeof(u8_t); + riovs[i].iov_base = &rcv_buf[i]; + riovs[i].iov_len = sizeof(u8_t); + } + + test_sockets_init_loopback_addr(domain, &addr_storage, &addr_size); + + s = test_sockets_alloc_socket_nonblocking(domain, SOCK_DGRAM); + fail_unless(s >= 0); + + ret = lwip_bind(s, (struct sockaddr*)&addr_storage, addr_size); + fail_unless(ret == 0); + + /* Update addr with epehermal port */ + ret = lwip_getsockname(s, (struct sockaddr*)&addr_storage, &addr_size); + fail_unless(ret == 0); + switch(domain) { +#if LWIP_IPV6 + case AF_INET6: + fail_unless(addr_size == sizeof(struct sockaddr_in6)); + break; +#endif /* LWIP_IPV6 */ +#if LWIP_IPV4 + case AF_INET: + fail_unless(addr_size == sizeof(struct sockaddr_in)); + break; +#endif /* LWIP_IPV6 */ + default: + fail(); + break; + } + + /* send and receive the datagram in 4 pieces */ + memset(&smsg, 0, sizeof(smsg)); + smsg.msg_iov = siovs; + smsg.msg_iovlen = 4; + memset(&rmsg, 0, sizeof(rmsg)); + rmsg.msg_iov = riovs; + rmsg.msg_iovlen = 4; + + /* perform a sendmsg with remote host (self) */ + smsg.msg_name = &addr_storage; + smsg.msg_namelen = addr_size; + + test_sockets_msgapi_udp_send_recv_loop(s, &smsg, &rmsg); + + /* Connect to self, allowing us to not pass message name */ + ret = lwip_connect(s, (struct sockaddr*)&addr_storage, addr_size); + fail_unless(ret == 0); + + smsg.msg_name = NULL; + smsg.msg_namelen = 0; + + test_sockets_msgapi_udp_send_recv_loop(s, &smsg, &rmsg); + + ret = lwip_close(s); + fail_unless(ret == 0); +} + +#if LWIP_IPV4 +static void test_sockets_msgapi_cmsg(int domain) +{ + int s, ret, enable; + struct sockaddr_storage addr_storage; + socklen_t addr_size; + struct iovec iov; + struct msghdr msg; + struct cmsghdr *cmsg; + struct in_pktinfo *pktinfo; + u8_t rcv_buf[4]; + u8_t snd_buf[4] = {0xDE, 0xAD, 0xBE, 0xEF}; + u8_t cmsg_buf[CMSG_SPACE(sizeof(struct in_pktinfo))]; + + test_sockets_init_loopback_addr(domain, &addr_storage, &addr_size); + + s = test_sockets_alloc_socket_nonblocking(domain, SOCK_DGRAM); + fail_unless(s >= 0); + + ret = lwip_bind(s, (struct sockaddr*)&addr_storage, addr_size); + fail_unless(ret == 0); + + /* Update addr with epehermal port */ + ret = lwip_getsockname(s, (struct sockaddr*)&addr_storage, &addr_size); + fail_unless(ret == 0); + + enable = 1; + ret = lwip_setsockopt(s, IPPROTO_IP, IP_PKTINFO, &enable, sizeof(enable)); + fail_unless(ret == 0); + + /* Receive full message, including control message */ + iov.iov_base = rcv_buf; + iov.iov_len = sizeof(rcv_buf); + msg.msg_control = cmsg_buf; + msg.msg_controllen = sizeof(cmsg_buf); + msg.msg_flags = 0; + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + msg.msg_name = NULL; + msg.msg_namelen = 0; + + memset(rcv_buf, 0, sizeof(rcv_buf)); + ret = lwip_sendto(s, snd_buf, sizeof(snd_buf), 0, (struct sockaddr*)&addr_storage, addr_size); + fail_unless(ret == sizeof(snd_buf)); + + tcpip_thread_poll_one(); + + ret = lwip_recvmsg(s, &msg, 0); + fail_unless(ret == sizeof(rcv_buf)); + fail_unless(!memcmp(rcv_buf, snd_buf, sizeof(rcv_buf))); + + /* Verify message header */ + cmsg = CMSG_FIRSTHDR(&msg); + fail_unless(cmsg != NULL); + fail_unless(cmsg->cmsg_len > 0); + fail_unless(cmsg->cmsg_level == IPPROTO_IP); + fail_unless(cmsg->cmsg_type == IP_PKTINFO); + + /* Verify message data */ + pktinfo = (struct in_pktinfo*)CMSG_DATA(cmsg); + /* We only have loopback interface enabled */ + fail_unless(pktinfo->ipi_ifindex == 1); + fail_unless(pktinfo->ipi_addr.s_addr == PP_HTONL(INADDR_LOOPBACK)); + + /* Verify there are no additional messages */ + cmsg = CMSG_NXTHDR(&msg, cmsg); + fail_unless(cmsg == NULL); + + /* Send datagram again, testing truncation */ + memset(rcv_buf, 0, sizeof(rcv_buf)); + ret = lwip_sendto(s, snd_buf, sizeof(snd_buf), 0, (struct sockaddr*)&addr_storage, addr_size); + fail_unless(ret == sizeof(snd_buf)); + + tcpip_thread_poll_one(); + + msg.msg_controllen = 1; + msg.msg_flags = 0; + ret = lwip_recvmsg(s, &msg, 0); + fail_unless(ret == sizeof(rcv_buf)); + fail_unless(!memcmp(rcv_buf, snd_buf, sizeof(rcv_buf))); + /* Ensure truncation was returned */ + fail_unless(msg.msg_flags & MSG_CTRUNC); + /* Ensure no control messages were returned */ + fail_unless(msg.msg_controllen == 0); + + ret = lwip_close(s); + fail_unless(ret == 0); +} +#endif /* LWIP_IPV4 */ + +START_TEST(test_sockets_msgapis) +{ + LWIP_UNUSED_ARG(_i); +#if LWIP_IPV4 + test_sockets_msgapi_udp(AF_INET); + test_sockets_msgapi_tcp(AF_INET); + test_sockets_msgapi_cmsg(AF_INET); +#endif +#if LWIP_IPV6 + test_sockets_msgapi_udp(AF_INET6); + test_sockets_msgapi_tcp(AF_INET6); +#endif +} +END_TEST + +START_TEST(test_sockets_select) +{ +#if LWIP_SOCKET_SELECT + int s; + int ret; + fd_set readset; + fd_set writeset; + fd_set errset; + struct timeval tv; + + fail_unless(test_sockets_get_used_count() == 0); + + s = lwip_socket(AF_INET, SOCK_STREAM, 0); + fail_unless(s >= 0); + fail_unless(test_sockets_get_used_count() == 0); + + FD_ZERO(&readset); + FD_SET(s, &readset); + FD_ZERO(&writeset); + FD_SET(s, &writeset); + FD_ZERO(&errset); + FD_SET(s, &errset); + + tv.tv_sec = tv.tv_usec = 0; + ret = lwip_select(s + 1, &readset, &writeset, &errset, &tv); + fail_unless(ret == 0); + fail_unless(test_sockets_get_used_count() == 0); + + ret = lwip_close(s); + fail_unless(ret == 0); + +#endif + LWIP_UNUSED_ARG(_i); +} +END_TEST + +START_TEST(test_sockets_recv_after_rst) +{ + int sl, sact; + int spass = -1; + int ret; + struct sockaddr_in sa_listen; + const u16_t port = 1234; + int arg; + const char txbuf[] = "something"; + char rxbuf[16]; + struct lwip_sock *sact_sock; + int err; + LWIP_UNUSED_ARG(_i); + + fail_unless(test_sockets_get_used_count() == 0); + + memset(&sa_listen, 0, sizeof(sa_listen)); + sa_listen.sin_family = AF_INET; + sa_listen.sin_port = PP_HTONS(port); + sa_listen.sin_addr.s_addr = PP_HTONL(INADDR_LOOPBACK); + + /* set up the listener */ + sl = lwip_socket(AF_INET, SOCK_STREAM, 0); + fail_unless(sl >= 0); + fail_unless(test_sockets_get_used_count() == 0); + + ret = lwip_bind(sl, (struct sockaddr *)&sa_listen, sizeof(sa_listen)); + fail_unless(ret == 0); + ret = lwip_listen(sl, 0); + fail_unless(ret == 0); + + /* set up the client */ + sact = lwip_socket(AF_INET, SOCK_STREAM, 0); + fail_unless(sact >= 0); + fail_unless(test_sockets_get_used_count() == 0); + /* set the client to nonblocking to simplify this test */ + arg = 1; + ret = lwip_ioctl(sact, FIONBIO, &arg); + fail_unless(ret == 0); + /* connect */ + do { + ret = lwip_connect(sact, (struct sockaddr *)&sa_listen, sizeof(sa_listen)); + err = errno; + fail_unless((ret == 0) || (ret == -1)); + if (ret != 0) { + if (err == EISCONN) { + /* Although this is not valid, use EISCONN as an indicator for successful connection. + This marks us as "connect phase is done". On error, we would either have a different + errno code or "send" fails later... -> good enough for this test. */ + ret = 0; + } else { + fail_unless(err == EINPROGRESS); + if (err != EINPROGRESS) { + goto cleanup; + } + /* we're in progress: little side check: test for EALREADY */ + ret = lwip_connect(sact, (struct sockaddr *)&sa_listen, sizeof(sa_listen)); + err = errno; + fail_unless(ret == -1); + fail_unless(err == EALREADY); + if ((ret != -1) || (err != EALREADY)) { + goto cleanup; + } + } + tcpip_thread_poll_one(); + tcpip_thread_poll_one(); + tcpip_thread_poll_one(); + tcpip_thread_poll_one(); + } + } while (ret != 0); + fail_unless(ret == 0); + + /* accept the server connection part */ + spass = lwip_accept(sl, NULL, NULL); + fail_unless(spass >= 0); + + /* write data from client */ + ret = lwip_send(sact, txbuf, sizeof(txbuf), 0); + fail_unless(ret == sizeof(txbuf)); + + tcpip_thread_poll_one(); + tcpip_thread_poll_one(); + + /* issue RST (This is a HACK, don't try this in your own app!) */ + sact_sock = lwip_socket_dbg_get_socket(sact); + fail_unless(sact_sock != NULL); + if (sact_sock != NULL) { + struct netconn *sact_conn = sact_sock->conn; + fail_unless(sact_conn != NULL); + if (sact_conn != NULL) { + struct tcp_pcb *pcb = sact_conn->pcb.tcp; + fail_unless(pcb != NULL); + if (pcb != NULL) { + tcp_rst(pcb, pcb->snd_nxt, pcb->rcv_nxt, &pcb->local_ip, &pcb->remote_ip, + pcb->local_port, pcb->remote_port); + } + } + } + tcpip_thread_poll_one(); + tcpip_thread_poll_one(); + + /* expect to receive data first */ + ret = lwip_recv(spass, rxbuf, sizeof(rxbuf), 0); + fail_unless(ret > 0); + tcpip_thread_poll_one(); + tcpip_thread_poll_one(); + + /* expect to receive RST indication */ + ret = lwip_recv(spass, rxbuf, sizeof(rxbuf), 0); + fail_unless(ret == -1); + err = errno; + fail_unless(err == ECONNRESET); + tcpip_thread_poll_one(); + tcpip_thread_poll_one(); + + /* expect to receive ENOTCONN indication */ + ret = lwip_recv(spass, rxbuf, sizeof(rxbuf), 0); + fail_unless(ret == -1); + err = errno; + fail_unless(err == ENOTCONN); + tcpip_thread_poll_one(); + tcpip_thread_poll_one(); + + /* expect to receive ENOTCONN indication */ + ret = lwip_recv(spass, rxbuf, sizeof(rxbuf), 0); + fail_unless(ret == -1); + err = errno; + fail_unless(err == ENOTCONN); + tcpip_thread_poll_one(); + tcpip_thread_poll_one(); + +cleanup: + ret = lwip_close(sl); + fail_unless(ret == 0); + ret = lwip_close(sact); + fail_unless(ret == 0); + if (spass >= 0) { + ret = lwip_close(spass); + fail_unless(ret == 0); + } +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +sockets_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_sockets_basics), + TESTFUNC(test_sockets_allfunctions_basic), + TESTFUNC(test_sockets_msgapis), + TESTFUNC(test_sockets_select), + TESTFUNC(test_sockets_recv_after_rst), + }; + return create_suite("SOCKETS", tests, sizeof(tests)/sizeof(testfunc), sockets_setup, sockets_teardown); +} + +#else /* LWIP_SOCKET */ + +Suite * +sockets_suite(void) +{ + return create_suite("SOCKETS", NULL, 0, NULL, NULL); +} +#endif /* LWIP_SOCKET */ diff --git a/middleware/lwip/test/unit/api/test_sockets.h b/middleware/lwip/test/unit/api/test_sockets.h new file mode 100644 index 0000000..0abb7a3 --- /dev/null +++ b/middleware/lwip/test/unit/api/test_sockets.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_SOCKETS_H +#define LWIP_HDR_TEST_SOCKETS_H + +#include "../lwip_check.h" + +Suite *sockets_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/arch/sys_arch.c b/middleware/lwip/test/unit/arch/sys_arch.c new file mode 100644 index 0000000..ed0e34f --- /dev/null +++ b/middleware/lwip/test/unit/arch/sys_arch.c @@ -0,0 +1,387 @@ +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ + + +#include +#include +#if !NO_SYS +#include "sys_arch.h" +#endif +#include +#include +#include + +#include + +u32_t lwip_sys_now; + +u32_t +sys_jiffies(void) +{ + return lwip_sys_now; +} + +u32_t +sys_now(void) +{ + return lwip_sys_now; +} + +void +sys_init(void) +{ +} + +#if !NO_SYS + +test_sys_arch_waiting_fn the_waiting_fn; + +void +test_sys_arch_wait_callback(test_sys_arch_waiting_fn waiting_fn) +{ + the_waiting_fn = waiting_fn; +} + +err_t +sys_sem_new(sys_sem_t *sem, u8_t count) +{ + LWIP_ASSERT("sem != NULL", sem != NULL); + *sem = count + 1; + return ERR_OK; +} + +void +sys_sem_free(sys_sem_t *sem) +{ + LWIP_ASSERT("sem != NULL", sem != NULL); + *sem = 0; +} + +void +sys_sem_set_invalid(sys_sem_t *sem) +{ + LWIP_ASSERT("sem != NULL", sem != NULL); + *sem = 0; +} + +/* semaphores are 1-based because RAM is initialized as 0, which would be valid */ +u32_t +sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout) +{ + u32_t ret = 0; + LWIP_ASSERT("sem != NULL", sem != NULL); + LWIP_ASSERT("*sem > 0", *sem > 0); + if (*sem == 1) { + /* need to wait */ + if(!timeout) + { + /* wait infinite */ + LWIP_ASSERT("cannot wait without waiting callback", the_waiting_fn != NULL); + do { + int expectSomething = the_waiting_fn(sem, NULL); + LWIP_ASSERT("*sem > 0", *sem > 0); + LWIP_ASSERT("expecting a semaphore count but it's 0", !expectSomething || (*sem > 1)); + ret++; + if (ret == SYS_ARCH_TIMEOUT) { + ret--; + } + } while(*sem == 1); + } + else + { + if (the_waiting_fn) { + int expectSomething = the_waiting_fn(sem, NULL); + LWIP_ASSERT("expecting a semaphore count but it's 0", !expectSomething || (*sem > 1)); + } + LWIP_ASSERT("*sem > 0", *sem > 0); + if (*sem == 1) { + return SYS_ARCH_TIMEOUT; + } + ret = 1; + } + } + LWIP_ASSERT("*sem > 0", *sem > 0); + (*sem)--; + LWIP_ASSERT("*sem > 0", *sem > 0); + /* return the time we waited for the sem */ + return ret; +} + +void +sys_sem_signal(sys_sem_t *sem) +{ + LWIP_ASSERT("sem != NULL", sem != NULL); + LWIP_ASSERT("*sem > 0", *sem > 0); + (*sem)++; + LWIP_ASSERT("*sem > 0", *sem > 0); +} + +err_t +sys_mutex_new(sys_mutex_t *mutex) +{ + LWIP_ASSERT("mutex != NULL", mutex != NULL); + *mutex = 1; /* 1 allocated */ + return ERR_OK; +} + +void +sys_mutex_free(sys_mutex_t *mutex) +{ + /* parameter check */ + LWIP_ASSERT("mutex != NULL", mutex != NULL); + LWIP_ASSERT("*mutex >= 1", *mutex >= 1); + *mutex = 0; +} + +void +sys_mutex_set_invalid(sys_mutex_t *mutex) +{ + LWIP_ASSERT("mutex != NULL", mutex != NULL); + *mutex = 0; +} + +void +sys_mutex_lock(sys_mutex_t *mutex) +{ + /* nothing to do, no multithreading supported */ + LWIP_ASSERT("mutex != NULL", mutex != NULL); + /* check that the mutext is valid and unlocked (no nested locking) */ + LWIP_ASSERT("*mutex >= 1", *mutex == 1); + /* we count up just to check the correct pairing of lock/unlock */ + (*mutex)++; + LWIP_ASSERT("*mutex >= 1", *mutex >= 1); +} + +void +sys_mutex_unlock(sys_mutex_t *mutex) +{ + /* nothing to do, no multithreading supported */ + LWIP_ASSERT("mutex != NULL", mutex != NULL); + LWIP_ASSERT("*mutex >= 1", *mutex >= 1); + /* we count down just to check the correct pairing of lock/unlock */ + (*mutex)--; + LWIP_ASSERT("*mutex >= 1", *mutex >= 1); +} + + +sys_thread_t +sys_thread_new(const char *name, lwip_thread_fn function, void *arg, int stacksize, int prio) +{ + LWIP_UNUSED_ARG(name); + LWIP_UNUSED_ARG(function); + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(stacksize); + LWIP_UNUSED_ARG(prio); + /* threads not supported */ + return 0; +} + +err_t +sys_mbox_new(sys_mbox_t *mbox, int size) +{ + int mboxsize = size; + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("size >= 0", size >= 0); + if (size == 0) { + mboxsize = 1024; + } + mbox->head = mbox->tail = 0; + mbox->sem = mbox; /* just point to something for sys_mbox_valid() */ + mbox->q_mem = (void**)malloc(sizeof(void*)*mboxsize); + mbox->size = mboxsize; + mbox->used = 0; + + memset(mbox->q_mem, 0, sizeof(void*)*mboxsize); + return ERR_OK; +} + +void +sys_mbox_free(sys_mbox_t *mbox) +{ + /* parameter check */ + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("mbox->sem != NULL", mbox->sem != NULL); + LWIP_ASSERT("mbox->sem == mbox", mbox->sem == mbox); + LWIP_ASSERT("mbox->q_mem != NULL", mbox->q_mem != NULL); + mbox->sem = NULL; + free(mbox->q_mem); + mbox->q_mem = NULL; +} + +void +sys_mbox_set_invalid(sys_mbox_t *mbox) +{ + LWIP_ASSERT("mbox != NULL", mbox != NULL); + LWIP_ASSERT("mbox->q_mem == NULL", mbox->q_mem == NULL); + mbox->sem = NULL; + mbox->q_mem = NULL; +} + +void +sys_mbox_post(sys_mbox_t *q, void *msg) +{ + LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL); + LWIP_ASSERT("q->sem == q", q->sem == q); + LWIP_ASSERT("q->q_mem != NULL", q->q_mem != NULL); + LWIP_ASSERT("q->used >= 0", q->used >= 0); + LWIP_ASSERT("q->size > 0", q->size > 0); + + LWIP_ASSERT("mbox already full", q->used < q->size); + + q->q_mem[q->head] = msg; + q->head++; + if (q->head >= (unsigned int)q->size) { + q->head = 0; + } + LWIP_ASSERT("mbox is full!", q->head != q->tail); + q->used++; +} + +err_t +sys_mbox_trypost(sys_mbox_t *q, void *msg) +{ + LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL); + LWIP_ASSERT("q->sem == q", q->sem == q); + LWIP_ASSERT("q->q_mem != NULL", q->q_mem != NULL); + LWIP_ASSERT("q->used >= 0", q->used >= 0); + LWIP_ASSERT("q->size > 0", q->size > 0); + LWIP_ASSERT("q->used <= q->size", q->used <= q->size); + + if (q->used == q->size) { + return ERR_MEM; + } + sys_mbox_post(q, msg); + return ERR_OK; +} + +err_t +sys_mbox_trypost_fromisr(sys_mbox_t *q, void *msg) +{ + return sys_mbox_trypost(q, msg); +} + +u32_t +sys_arch_mbox_fetch(sys_mbox_t *q, void **msg, u32_t timeout) +{ + u32_t ret = 0; + u32_t ret2; + LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL); + LWIP_ASSERT("q->sem == q", q->sem == q); + LWIP_ASSERT("q->q_mem != NULL", q->q_mem != NULL); + LWIP_ASSERT("q->used >= 0", q->used >= 0); + LWIP_ASSERT("q->size > 0", q->size > 0); + + if (q->used == 0) { + /* need to wait */ + /* need to wait */ + if(!timeout) + { + /* wait infinite */ + LWIP_ASSERT("cannot wait without waiting callback", the_waiting_fn != NULL); + do { + int expectSomething = the_waiting_fn(NULL, q); + LWIP_ASSERT("q->used >= 0", q->used >= 0); + LWIP_ASSERT("expecting item available but it's 0", !expectSomething || (q->used > 0)); + ret++; + if (ret == SYS_ARCH_TIMEOUT) { + ret--; + } + } while(q->used == 0); + } + else + { + if (the_waiting_fn) { + int expectSomething = the_waiting_fn(NULL, q); + LWIP_ASSERT("expecting item available count but it's 0", !expectSomething || (q->used > 0)); + } + LWIP_ASSERT("q->used >= 0", q->used >= 0); + if (q->used == 0) { + if(msg) { + *msg = NULL; + } + return SYS_ARCH_TIMEOUT; + } + ret = 1; + } + } + LWIP_ASSERT("q->used > 0", q->used > 0); + ret2 = sys_arch_mbox_tryfetch(q, msg); + LWIP_ASSERT("got no message", ret2 == 0); + return ret; +} + +u32_t +sys_arch_mbox_tryfetch(sys_mbox_t *q, void **msg) +{ + LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL); + LWIP_ASSERT("q->sem == q", q->sem == q); + LWIP_ASSERT("q->q_mem != NULL", q->q_mem != NULL); + LWIP_ASSERT("q->used >= 0", q->used >= 0); + LWIP_ASSERT("q->size > 0", q->size > 0); + + if (!q->used) { + return SYS_ARCH_TIMEOUT; + } + if(msg) { + *msg = q->q_mem[q->tail]; + } + + q->tail++; + if (q->tail >= (unsigned int)q->size) { + q->tail = 0; + } + q->used--; + LWIP_ASSERT("q->used >= 0", q->used >= 0); + return 0; +} + +#if LWIP_NETCONN_SEM_PER_THREAD +/* Simple implementation of this: unit tests only support one thread */ +static sys_sem_t global_netconn_sem; + +sys_sem_t* sys_arch_netconn_sem_get(void) +{ + return &global_netconn_sem; +} + +void sys_arch_netconn_sem_alloc(void) +{ + sys_sem_new(&global_netconn_sem, 0); +} + +void sys_arch_netconn_sem_free(void) +{ + sys_sem_free(&global_netconn_sem); +} +#endif /* LWIP_NETCONN_SEM_PER_THREAD */ + +#endif /* !NO_SYS */ diff --git a/middleware/lwip/test/unit/arch/sys_arch.h b/middleware/lwip/test/unit/arch/sys_arch.h new file mode 100644 index 0000000..9157b6a --- /dev/null +++ b/middleware/lwip/test/unit/arch/sys_arch.h @@ -0,0 +1,79 @@ +/* + * Copyright (c) 2017 Simon Goldschmidt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_TEST_SYS_ARCH_H +#define LWIP_HDR_TEST_SYS_ARCH_H + +typedef int sys_sem_t; +#define sys_sem_valid(sema) ((sema) != NULL) + +typedef int sys_mutex_t; +#define sys_mutex_valid(mutex) (((mutex) != NULL) + +struct lwip_mbox { + void* sem; + void** q_mem; + unsigned int head, tail; + int size; + int used; +}; +typedef struct lwip_mbox sys_mbox_t; +#define SYS_MBOX_NULL NULL +#define sys_mbox_valid(mbox) ((mbox != NULL) && ((mbox)->sem != NULL) && ((mbox)->sem != (void*)-1)) +#define sys_mbox_valid_val(mbox) (((mbox).sem != NULL) && ((mbox).sem != (void*)-1)) + +/* DWORD (thread id) is used for sys_thread_t but we won't include windows.h */ +typedef u32_t sys_thread_t; + +#define SYS_ARCH_DECL_PROTECT(lev) +#define SYS_ARCH_PROTECT(lev) +#define SYS_ARCH_UNPROTECT(lev) + +/* to implement doing something while blocking on an mbox or semaphore: + * pass a function to test_sys_arch_wait_callback() that returns + * '0' if waiting again and + * '1' if now there should be something to do (used for asserting) + */ +typedef int (*test_sys_arch_waiting_fn)(sys_sem_t* wait_sem, sys_mbox_t* wait_mbox); +void test_sys_arch_wait_callback(test_sys_arch_waiting_fn waiting_fn); + +/* current time */ +extern u32_t lwip_sys_now; + +sys_sem_t* sys_arch_netconn_sem_get(void); +void sys_arch_netconn_sem_alloc(void); +void sys_arch_netconn_sem_free(void); +#define LWIP_NETCONN_THREAD_SEM_GET() sys_arch_netconn_sem_get() +#define LWIP_NETCONN_THREAD_SEM_ALLOC() sys_arch_netconn_sem_alloc() +#define LWIP_NETCONN_THREAD_SEM_FREE() sys_arch_netconn_sem_free() + +#endif /* LWIP_HDR_TEST_SYS_ARCH_H */ + diff --git a/middleware/lwip/test/unit/core/test_def.c b/middleware/lwip/test/unit/core/test_def.c new file mode 100644 index 0000000..0ae2e9c --- /dev/null +++ b/middleware/lwip/test/unit/core/test_def.c @@ -0,0 +1,84 @@ +#include "test_def.h" + +#include "lwip/def.h" + +#define MAGIC_UNTOUCHED_BYTE 0x7a +#define TEST_BUFSIZE 32 +#define GUARD_SIZE 4 + +/* Setups/teardown functions */ + +static void +def_setup(void) +{ +} + +static void +def_teardown(void) +{ +} + +static void +def_check_range_untouched(const char *buf, size_t len) +{ + size_t i; + + for (i = 0; i < len; i++) { + fail_unless(buf[i] == (char)MAGIC_UNTOUCHED_BYTE); + } +} + +static void test_def_itoa(int number, const char *expected) +{ + char buf[TEST_BUFSIZE]; + char *test_buf = &buf[GUARD_SIZE]; + + size_t exp_len = strlen(expected); + fail_unless(exp_len + 4 < (TEST_BUFSIZE - (2 * GUARD_SIZE))); + + memset(buf, MAGIC_UNTOUCHED_BYTE, sizeof(buf)); + lwip_itoa(test_buf, exp_len + 1, number); + def_check_range_untouched(buf, GUARD_SIZE); + fail_unless(test_buf[exp_len] == 0); + fail_unless(!memcmp(test_buf, expected, exp_len)); + def_check_range_untouched(&test_buf[exp_len + 1], TEST_BUFSIZE - GUARD_SIZE - exp_len - 1); + + /* check with too small buffer */ + memset(buf, MAGIC_UNTOUCHED_BYTE, sizeof(buf)); + lwip_itoa(test_buf, exp_len, number); + def_check_range_untouched(buf, GUARD_SIZE); + def_check_range_untouched(&test_buf[exp_len + 1], TEST_BUFSIZE - GUARD_SIZE - exp_len - 1); + + /* check with too large buffer */ + memset(buf, MAGIC_UNTOUCHED_BYTE, sizeof(buf)); + lwip_itoa(test_buf, exp_len + 4, number); + def_check_range_untouched(buf, GUARD_SIZE); + fail_unless(test_buf[exp_len] == 0); + fail_unless(!memcmp(test_buf, expected, exp_len)); + def_check_range_untouched(&test_buf[exp_len + 4], TEST_BUFSIZE - GUARD_SIZE - exp_len - 4); +} + +START_TEST(test_def_lwip_itoa) +{ + LWIP_UNUSED_ARG(_i); + + test_def_itoa(0, "0"); + test_def_itoa(1, "1"); + test_def_itoa(-1, "-1"); + test_def_itoa(15, "15"); + test_def_itoa(-15, "-15"); + test_def_itoa(156, "156"); + test_def_itoa(1192, "1192"); + test_def_itoa(-156, "-156"); +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +def_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_def_lwip_itoa) + }; + return create_suite("DEF", tests, sizeof(tests)/sizeof(testfunc), def_setup, def_teardown); +} diff --git a/middleware/lwip/test/unit/core/test_def.h b/middleware/lwip/test/unit/core/test_def.h new file mode 100644 index 0000000..7316051 --- /dev/null +++ b/middleware/lwip/test/unit/core/test_def.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_DEF_H +#define LWIP_HDR_TEST_DEF_H + +#include "../lwip_check.h" + +Suite *def_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/core/test_dns.c b/middleware/lwip/test/unit/core/test_dns.c new file mode 100644 index 0000000..d558279 --- /dev/null +++ b/middleware/lwip/test/unit/core/test_dns.c @@ -0,0 +1,51 @@ +#include "test_dns.h" + +#include "lwip/dns.h" + +/* Setups/teardown functions */ + +static void +dns_setup(void) +{ +} + +static void +dns_teardown(void) +{ +} + +/* Test functions */ + +START_TEST(test_dns_set_get_server) +{ + int i; + LWIP_UNUSED_ARG(_i); + + for (i = 0; i < 256; i++) { + ip_addr_t server; + /* Should return a zeroed address for any index */ + fail_unless(dns_getserver(i)); + fail_unless(ip_addr_isany(dns_getserver(i))); + + /* Should accept setting address for any index, and ignore if out of range */ + IP_ADDR4(&server, 10, 0, 0, i); + dns_setserver(i, &server); + fail_unless(dns_getserver(i)); + if (i < DNS_MAX_SERVERS) { + fail_unless(ip_addr_eq(dns_getserver(i), &server) == 1); + } else { + fail_unless(ip_addr_isany(dns_getserver(i))); + } + } +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +dns_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_dns_set_get_server) + }; + return create_suite("DNS", tests, sizeof(tests)/sizeof(testfunc), dns_setup, dns_teardown); +} diff --git a/middleware/lwip/test/unit/core/test_dns.h b/middleware/lwip/test/unit/core/test_dns.h new file mode 100644 index 0000000..eaad0ca --- /dev/null +++ b/middleware/lwip/test/unit/core/test_dns.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_DNS_H +#define LWIP_HDR_TEST_DNS_H + +#include "../lwip_check.h" + +Suite *dns_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/core/test_mem.c b/middleware/lwip/test/unit/core/test_mem.c new file mode 100644 index 0000000..601bfc7 --- /dev/null +++ b/middleware/lwip/test/unit/core/test_mem.c @@ -0,0 +1,221 @@ +#include "test_mem.h" + +#include "lwip/mem.h" +#include "lwip/stats.h" + +#if !LWIP_STATS || !MEM_STATS +#error "This tests needs MEM-statistics enabled" +#endif + +/* Setups/teardown functions */ + +static void +mem_setup(void) +{ + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +mem_teardown(void) +{ + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + + +/* Test functions */ + +/** Call mem_malloc, mem_free and mem_trim and check stats */ +START_TEST(test_mem_one) +{ +#define SIZE1 16 +#define SIZE1_2 12 +#define SIZE2 16 + void *p1, *p2; + mem_size_t s1, s2; + LWIP_UNUSED_ARG(_i); + + fail_unless(lwip_stats.mem.used == 0); + + p1 = mem_malloc(SIZE1); + fail_unless(p1 != NULL); + fail_unless(lwip_stats.mem.used >= SIZE1); + s1 = lwip_stats.mem.used; + + p2 = mem_malloc(SIZE2); + fail_unless(p2 != NULL); + fail_unless(lwip_stats.mem.used >= SIZE2 + s1); + s2 = lwip_stats.mem.used; + + mem_trim(p1, SIZE1_2); + + mem_free(p2); + fail_unless(lwip_stats.mem.used <= s2 - SIZE2); + + mem_free(p1); + fail_unless(lwip_stats.mem.used == 0); +} +END_TEST + +static void malloc_keep_x(int x, int num, int size, int freestep) +{ + int i; + void* p[16]; + LWIP_ASSERT("invalid size", size >= 0 && size < (mem_size_t)-1); + memset(p, 0, sizeof(p)); + for(i = 0; i < num && i < 16; i++) { + p[i] = mem_malloc((mem_size_t)size); + fail_unless(p[i] != NULL); + } + for(i = 0; i < num && i < 16; i += freestep) { + if (i == x) { + continue; + } + mem_free(p[i]); + p[i] = NULL; + } + for(i = 0; i < num && i < 16; i++) { + if (i == x) { + continue; + } + if (p[i] != NULL) { + mem_free(p[i]); + p[i] = NULL; + } + } + fail_unless(p[x] != NULL); + mem_free(p[x]); +} + +START_TEST(test_mem_random) +{ + const int num = 16; + int x; + int size; + int freestep; + LWIP_UNUSED_ARG(_i); + + fail_unless(lwip_stats.mem.used == 0); + + for (x = 0; x < num; x++) { + for (size = 1; size < 32; size++) { + for (freestep = 1; freestep <= 3; freestep++) { + fail_unless(lwip_stats.mem.used == 0); + malloc_keep_x(x, num, size, freestep); + fail_unless(lwip_stats.mem.used == 0); + } + } + } +} +END_TEST + +START_TEST(test_mem_invalid_free) +{ + u8_t *ptr, *ptr_low, *ptr_high; + LWIP_UNUSED_ARG(_i); + + fail_unless(lwip_stats.mem.used == 0); + fail_unless(lwip_stats.mem.illegal == 0); + + ptr = (u8_t *)mem_malloc(1); + fail_unless(ptr != NULL); + fail_unless(lwip_stats.mem.used != 0); + + ptr_low = ptr - 0x10; + mem_free(ptr_low); + fail_unless(lwip_stats.mem.illegal == 1); + lwip_stats.mem.illegal = 0; + + ptr_high = ptr + (MEM_SIZE * 2); + mem_free(ptr_high); + fail_unless(lwip_stats.mem.illegal == 1); + lwip_stats.mem.illegal = 0; + + mem_free(ptr); + fail_unless(lwip_stats.mem.illegal == 0); + fail_unless(lwip_stats.mem.used == 0); +} +END_TEST + +START_TEST(test_mem_double_free) +{ + u8_t *ptr1b, *ptr1, *ptr2, *ptr3; + LWIP_UNUSED_ARG(_i); + + fail_unless(lwip_stats.mem.used == 0); + fail_unless(lwip_stats.mem.illegal == 0); + + ptr1 = (u8_t *)mem_malloc(1); + fail_unless(ptr1 != NULL); + fail_unless(lwip_stats.mem.used != 0); + + ptr2 = (u8_t *)mem_malloc(1); + fail_unless(ptr2 != NULL); + fail_unless(lwip_stats.mem.used != 0); + + ptr3 = (u8_t *)mem_malloc(1); + fail_unless(ptr3 != NULL); + fail_unless(lwip_stats.mem.used != 0); + + /* free the middle mem */ + mem_free(ptr2); + fail_unless(lwip_stats.mem.illegal == 0); + + /* double-free of middle mem: should fail */ + mem_free(ptr2); + fail_unless(lwip_stats.mem.illegal == 1); + lwip_stats.mem.illegal = 0; + + /* free upper memory and try again */ + mem_free(ptr3); + fail_unless(lwip_stats.mem.illegal == 0); + + mem_free(ptr2); + fail_unless(lwip_stats.mem.illegal == 1); + lwip_stats.mem.illegal = 0; + + /* free lower memory and try again */ + mem_free(ptr1); + fail_unless(lwip_stats.mem.illegal == 0); + fail_unless(lwip_stats.mem.used == 0); + + mem_free(ptr2); + fail_unless(lwip_stats.mem.illegal == 1); + fail_unless(lwip_stats.mem.used == 0); + lwip_stats.mem.illegal = 0; + + /* reallocate lowest memory, now overlapping already freed ptr2 */ +#ifndef MIN_SIZE +#define MIN_SIZE 12 +#endif + ptr1b = (u8_t *)mem_malloc(MIN_SIZE * 2); + fail_unless(ptr1b != NULL); + fail_unless(lwip_stats.mem.used != 0); + + mem_free(ptr2); + fail_unless(lwip_stats.mem.illegal == 1); + lwip_stats.mem.illegal = 0; + + memset(ptr1b, 1, MIN_SIZE * 2); + + mem_free(ptr2); + fail_unless(lwip_stats.mem.illegal == 1); + lwip_stats.mem.illegal = 0; + + mem_free(ptr1b); + fail_unless(lwip_stats.mem.illegal == 0); + fail_unless(lwip_stats.mem.used == 0); +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +mem_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_mem_one), + TESTFUNC(test_mem_random), + TESTFUNC(test_mem_invalid_free), + TESTFUNC(test_mem_double_free) + }; + return create_suite("MEM", tests, sizeof(tests)/sizeof(testfunc), mem_setup, mem_teardown); +} diff --git a/middleware/lwip/test/unit/core/test_mem.h b/middleware/lwip/test/unit/core/test_mem.h new file mode 100644 index 0000000..325134c --- /dev/null +++ b/middleware/lwip/test/unit/core/test_mem.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_MEM_H +#define LWIP_HDR_TEST_MEM_H + +#include "../lwip_check.h" + +Suite *mem_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/core/test_netif.c b/middleware/lwip/test/unit/core/test_netif.c new file mode 100644 index 0000000..42604b8 --- /dev/null +++ b/middleware/lwip/test/unit/core/test_netif.c @@ -0,0 +1,231 @@ +#include "test_netif.h" + +#include "lwip/netif.h" +#include "lwip/stats.h" +#include "lwip/etharp.h" +#include "netif/ethernet.h" + +#if !LWIP_NETIF_EXT_STATUS_CALLBACK +#error "This tests needs LWIP_NETIF_EXT_STATUS_CALLBACK enabled" +#endif + +static struct netif net_test; + + +/* Setups/teardown functions */ + +static void +netif_setup(void) +{ + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +netif_teardown(void) +{ + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +/* test helper functions */ + +static err_t +testif_tx_func(struct netif *netif, struct pbuf *p) +{ + LWIP_UNUSED_ARG(netif); + LWIP_UNUSED_ARG(p); + return ERR_OK; +} + +static err_t +testif_init(struct netif *netif) +{ + netif->name[0] = 'c'; + netif->name[1] = 'h'; + netif->output = etharp_output; + netif->linkoutput = testif_tx_func; + netif->mtu = 1500; + netif->hwaddr_len = 6; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP | NETIF_FLAG_MLD6; + + netif->hwaddr[0] = 0x02; + netif->hwaddr[1] = 0x03; + netif->hwaddr[2] = 0x04; + netif->hwaddr[3] = 0x05; + netif->hwaddr[4] = 0x06; + netif->hwaddr[5] = 0x07; + + return ERR_OK; +} + +#define MAX_NSC_REASON_IDX 10 +static netif_nsc_reason_t expected_reasons; +static int callback_ctr; + +static int dummy_active; + +static void +test_netif_ext_callback_dummy(struct netif* netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t* args) +{ + LWIP_UNUSED_ARG(netif); + LWIP_UNUSED_ARG(reason); + LWIP_UNUSED_ARG(args); + + fail_unless(dummy_active); +} + +static void +test_netif_ext_callback(struct netif* netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t* args) +{ + LWIP_UNUSED_ARG(args); /* @todo */ + callback_ctr++; + + fail_unless(netif == &net_test); + + fail_unless(expected_reasons == reason); +} + +/* Test functions */ + +NETIF_DECLARE_EXT_CALLBACK(netif_callback_1) +NETIF_DECLARE_EXT_CALLBACK(netif_callback_2) +NETIF_DECLARE_EXT_CALLBACK(netif_callback_3) + +START_TEST(test_netif_extcallbacks) +{ + ip4_addr_t addr; + ip4_addr_t netmask; + ip4_addr_t gw; + LWIP_UNUSED_ARG(_i); + + IP4_ADDR(&addr, 0, 0, 0, 0); + IP4_ADDR(&netmask, 0, 0, 0, 0); + IP4_ADDR(&gw, 0, 0, 0, 0); + + netif_add_ext_callback(&netif_callback_3, test_netif_ext_callback_dummy); + netif_add_ext_callback(&netif_callback_2, test_netif_ext_callback); + netif_add_ext_callback(&netif_callback_1, test_netif_ext_callback_dummy); + + dummy_active = 1; + + /* positive tests: check that single events come as expected */ + + expected_reasons = LWIP_NSC_NETIF_ADDED; + callback_ctr = 0; + netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input); + fail_unless(callback_ctr == 1); + + expected_reasons = LWIP_NSC_LINK_CHANGED; + callback_ctr = 0; + netif_set_link_up(&net_test); + fail_unless(callback_ctr == 1); + + expected_reasons = LWIP_NSC_STATUS_CHANGED; + callback_ctr = 0; + netif_set_up(&net_test); + fail_unless(callback_ctr == 1); + + IP4_ADDR(&addr, 1, 2, 3, 4); + expected_reasons = LWIP_NSC_IPV4_ADDRESS_CHANGED; + callback_ctr = 0; + netif_set_ipaddr(&net_test, &addr); + fail_unless(callback_ctr == 1); + + IP4_ADDR(&netmask, 255, 255, 255, 0); + expected_reasons = LWIP_NSC_IPV4_NETMASK_CHANGED; + callback_ctr = 0; + netif_set_netmask(&net_test, &netmask); + fail_unless(callback_ctr == 1); + + IP4_ADDR(&gw, 1, 2, 3, 254); + expected_reasons = LWIP_NSC_IPV4_GATEWAY_CHANGED; + callback_ctr = 0; + netif_set_gw(&net_test, &gw); + fail_unless(callback_ctr == 1); + + IP4_ADDR(&addr, 0, 0, 0, 0); + expected_reasons = LWIP_NSC_IPV4_ADDRESS_CHANGED; + callback_ctr = 0; + netif_set_ipaddr(&net_test, &addr); + fail_unless(callback_ctr == 1); + + IP4_ADDR(&netmask, 0, 0, 0, 0); + expected_reasons = LWIP_NSC_IPV4_NETMASK_CHANGED; + callback_ctr = 0; + netif_set_netmask(&net_test, &netmask); + fail_unless(callback_ctr == 1); + + IP4_ADDR(&gw, 0, 0, 0, 0); + expected_reasons = LWIP_NSC_IPV4_GATEWAY_CHANGED; + callback_ctr = 0; + netif_set_gw(&net_test, &gw); + fail_unless(callback_ctr == 1); + + /* check for multi-events (only one combined callback expected) */ + + IP4_ADDR(&addr, 1, 2, 3, 4); + IP4_ADDR(&netmask, 255, 255, 255, 0); + IP4_ADDR(&gw, 1, 2, 3, 254); + expected_reasons = (netif_nsc_reason_t)(LWIP_NSC_IPV4_ADDRESS_CHANGED | LWIP_NSC_IPV4_NETMASK_CHANGED | + LWIP_NSC_IPV4_GATEWAY_CHANGED | LWIP_NSC_IPV4_SETTINGS_CHANGED | + LWIP_NSC_IPV4_ADDR_VALID); + callback_ctr = 0; + netif_set_addr(&net_test, &addr, &netmask, &gw); + fail_unless(callback_ctr == 1); + + /* check that for no-change, no callback is expected */ + expected_reasons = LWIP_NSC_NONE; + callback_ctr = 0; + netif_set_ipaddr(&net_test, &addr); + fail_unless(callback_ctr == 0); + + netif_set_netmask(&net_test, &netmask); + callback_ctr = 0; + fail_unless(callback_ctr == 0); + + callback_ctr = 0; + netif_set_gw(&net_test, &gw); + fail_unless(callback_ctr == 0); + + /* netif_set_addr() always issues at least LWIP_NSC_IPV4_ADDR_VALID */ + expected_reasons = LWIP_NSC_IPV4_ADDR_VALID; + callback_ctr = 0; + netif_set_addr(&net_test, &addr, &netmask, &gw); + fail_unless(callback_ctr == 1); + + /* check for single-events */ + IP4_ADDR(&addr, 1, 2, 3, 5); + expected_reasons = (netif_nsc_reason_t)(LWIP_NSC_IPV4_ADDRESS_CHANGED | LWIP_NSC_IPV4_SETTINGS_CHANGED | + LWIP_NSC_IPV4_ADDR_VALID); + callback_ctr = 0; + netif_set_addr(&net_test, &addr, &netmask, &gw); + fail_unless(callback_ctr == 1); + + expected_reasons = LWIP_NSC_STATUS_CHANGED; + callback_ctr = 0; + netif_set_down(&net_test); + fail_unless(callback_ctr == 1); + + expected_reasons = LWIP_NSC_NETIF_REMOVED; + callback_ctr = 0; + netif_remove(&net_test); + fail_unless(callback_ctr == 1); + + expected_reasons = LWIP_NSC_NONE; + + netif_remove_ext_callback(&netif_callback_2); + netif_remove_ext_callback(&netif_callback_3); + netif_remove_ext_callback(&netif_callback_1); + dummy_active = 0; +} +END_TEST + + +/** Create the suite including all tests for this module */ +Suite * +netif_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_netif_extcallbacks) + }; + return create_suite("NETIF", tests, sizeof(tests)/sizeof(testfunc), netif_setup, netif_teardown); +} diff --git a/middleware/lwip/test/unit/core/test_netif.h b/middleware/lwip/test/unit/core/test_netif.h new file mode 100644 index 0000000..8f2b6b4 --- /dev/null +++ b/middleware/lwip/test/unit/core/test_netif.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_NETIF_H +#define LWIP_HDR_TEST_NETIF_H + +#include "../lwip_check.h" + +Suite *netif_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/core/test_pbuf.c b/middleware/lwip/test/unit/core/test_pbuf.c new file mode 100644 index 0000000..681d61d --- /dev/null +++ b/middleware/lwip/test/unit/core/test_pbuf.c @@ -0,0 +1,357 @@ +#include "test_pbuf.h" + +#include "lwip/pbuf.h" +#include "lwip/stats.h" + +#if !LWIP_STATS || !MEM_STATS ||!MEMP_STATS +#error "This tests needs MEM- and MEMP-statistics enabled" +#endif +#if !LWIP_TCP || !TCP_QUEUE_OOSEQ || !LWIP_WND_SCALE +#error "This test needs TCP OOSEQ queueing and window scaling enabled" +#endif + +/* Setups/teardown functions */ + +static void +pbuf_setup(void) +{ + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +pbuf_teardown(void) +{ + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + + +#define TESTBUFSIZE_1 65535 +#define TESTBUFSIZE_2 65530 +#define TESTBUFSIZE_3 50050 +static u8_t testbuf_1[TESTBUFSIZE_1]; +static u8_t testbuf_1a[TESTBUFSIZE_1]; +static u8_t testbuf_2[TESTBUFSIZE_2]; +static u8_t testbuf_2a[TESTBUFSIZE_2]; +static u8_t testbuf_3[TESTBUFSIZE_3]; +static u8_t testbuf_3a[TESTBUFSIZE_3]; + +/* Test functions */ +START_TEST(test_pbuf_alloc_zero_pbufs) +{ + struct pbuf *p; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, 0, PBUF_ROM); + fail_unless(p != NULL); + if (p != NULL) { + pbuf_free(p); + } + + p = pbuf_alloc(PBUF_RAW, 0, PBUF_RAM); + fail_unless(p != NULL); + if (p != NULL) { + pbuf_free(p); + } + + p = pbuf_alloc(PBUF_RAW, 0, PBUF_REF); + fail_unless(p != NULL); + if (p != NULL) { + pbuf_free(p); + } + + p = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL); + fail_unless(p != NULL); + if (p != NULL) { + pbuf_free(p); + } +} +END_TEST + +/** Call pbuf_copy on a pbuf with zero length */ +START_TEST(test_pbuf_copy_zero_pbuf) +{ + struct pbuf *p1, *p2, *p3; + err_t err; + LWIP_UNUSED_ARG(_i); + + p1 = pbuf_alloc(PBUF_RAW, 1024, PBUF_RAM); + fail_unless(p1 != NULL); + fail_unless(p1->ref == 1); + + p2 = pbuf_alloc(PBUF_RAW, 2, PBUF_POOL); + fail_unless(p2 != NULL); + fail_unless(p2->ref == 1); + p2->len = p2->tot_len = 0; + + pbuf_cat(p1, p2); + fail_unless(p1->ref == 1); + fail_unless(p2->ref == 1); + + p3 = pbuf_alloc(PBUF_RAW, p1->tot_len, PBUF_POOL); + err = pbuf_copy(p3, p1); + fail_unless(err == ERR_VAL); + + pbuf_free(p1); + pbuf_free(p3); +} +END_TEST + +/** Call pbuf_copy on pbufs with chains of different sizes */ +START_TEST(test_pbuf_copy_unmatched_chains) +{ + int i, j; + err_t err; + struct pbuf *source, *dest, *p; + source = NULL; + /* Build source pbuf from linked 16 byte parts, + * with payload bytes containing their offset */ + for (i = 0; i < 8; i++) { + p = pbuf_alloc(PBUF_RAW, 16, PBUF_RAM); + fail_unless(p != NULL); + for (j = 0; j < p->len; j++) { + ((unsigned char*)p->payload)[j] = (i << 4) | j; + } + if (source) { + pbuf_cat(source, p); + } else { + source = p; + } + } + for (i = 0; i < source->tot_len; i++) { + fail_unless(pbuf_get_at(source, i) == i); + } + + /* Build dest pbuf from other lengths */ + dest = pbuf_alloc(PBUF_RAW, 35, PBUF_RAM); + fail_unless(dest != NULL); + p = pbuf_alloc(PBUF_RAW, 81, PBUF_RAM); + fail_unless(p != NULL); + pbuf_cat(dest, p); + p = pbuf_alloc(PBUF_RAW, 27, PBUF_RAM); + fail_unless(p != NULL); + pbuf_cat(dest, p); + + /* Copy contents and verify data */ + err = pbuf_copy(dest, source); + fail_unless(err == ERR_OK); + for (i = 0; i < source->tot_len; i++) { + fail_unless(pbuf_get_at(dest, i) == i); + } + + pbuf_free(source); + pbuf_free(dest); +} +END_TEST + +START_TEST(test_pbuf_copy_partial_pbuf) +{ + struct pbuf *a, *b, *dest; + char lwip[] = "lwip "; + char packet[] = "packet"; + err_t err; + LWIP_UNUSED_ARG(_i); + + a = pbuf_alloc(PBUF_RAW, 5, PBUF_REF); + fail_unless(a != NULL); + a->payload = lwip; + b = pbuf_alloc(PBUF_RAW, 7, PBUF_REF); + fail_unless(b != NULL); + b->payload = packet; + pbuf_cat(a, b); + dest = pbuf_alloc(PBUF_RAW, 14, PBUF_RAM); + memset(dest->payload, 0, dest->len); + fail_unless(dest != NULL); + + /* Don't copy if data will not fit */ + err = pbuf_copy_partial_pbuf(dest, a, a->tot_len, 4); + fail_unless(err == ERR_ARG); + /* Don't copy if length is longer than source */ + err = pbuf_copy_partial_pbuf(dest, a, a->tot_len + 1, 0); + fail_unless(err == ERR_ARG); + /* Normal copy */ + err = pbuf_copy_partial_pbuf(dest, a, a->tot_len, 0); + fail_unless(err == ERR_OK); + fail_unless(strcmp("lwip packet", (char*)dest->payload) == 0); + /* Copy at offset */ + err = pbuf_copy_partial_pbuf(dest, a, a->tot_len, 1); + fail_unless(err == ERR_OK); + fail_unless(strcmp("llwip packet", (char*)dest->payload) == 0); + /* Copy at offset with shorter length */ + err = pbuf_copy_partial_pbuf(dest, a, 6, 6); + fail_unless(err == ERR_OK); + fail_unless(strcmp("llwip lwip p", (char*)dest->payload) == 0); + /* Copy with shorter length */ + err = pbuf_copy_partial_pbuf(dest, a, 5, 0); + fail_unless(err == ERR_OK); + fail_unless(strcmp("lwip lwip p", (char*)dest->payload) == 0); + + pbuf_free(dest); + pbuf_free(a); +} +END_TEST + +START_TEST(test_pbuf_split_64k_on_small_pbufs) +{ + struct pbuf *p, *rest=NULL; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, 1, PBUF_POOL); + pbuf_split_64k(p, &rest); + fail_unless(p->tot_len == 1); + pbuf_free(p); +} +END_TEST + +START_TEST(test_pbuf_queueing_bigger_than_64k) +{ + int i; + err_t err; + struct pbuf *p1, *p2, *p3, *rest2=NULL, *rest3=NULL; + LWIP_UNUSED_ARG(_i); + + for(i = 0; i < TESTBUFSIZE_1; i++) { + testbuf_1[i] = (u8_t)rand(); + } + for(i = 0; i < TESTBUFSIZE_2; i++) { + testbuf_2[i] = (u8_t)rand(); + } + for(i = 0; i < TESTBUFSIZE_3; i++) { + testbuf_3[i] = (u8_t)rand(); + } + + p1 = pbuf_alloc(PBUF_RAW, TESTBUFSIZE_1, PBUF_POOL); + fail_unless(p1 != NULL); + p2 = pbuf_alloc(PBUF_RAW, TESTBUFSIZE_2, PBUF_POOL); + fail_unless(p2 != NULL); + p3 = pbuf_alloc(PBUF_RAW, TESTBUFSIZE_3, PBUF_POOL); + fail_unless(p3 != NULL); + err = pbuf_take(p1, testbuf_1, TESTBUFSIZE_1); + fail_unless(err == ERR_OK); + err = pbuf_take(p2, testbuf_2, TESTBUFSIZE_2); + fail_unless(err == ERR_OK); + err = pbuf_take(p3, testbuf_3, TESTBUFSIZE_3); + fail_unless(err == ERR_OK); + + pbuf_cat(p1, p2); + pbuf_cat(p1, p3); + + pbuf_split_64k(p1, &rest2); + fail_unless(p1->tot_len == TESTBUFSIZE_1); + fail_unless(rest2->tot_len == (u16_t)((TESTBUFSIZE_2+TESTBUFSIZE_3) & 0xFFFF)); + pbuf_split_64k(rest2, &rest3); + fail_unless(rest2->tot_len == TESTBUFSIZE_2); + fail_unless(rest3->tot_len == TESTBUFSIZE_3); + + pbuf_copy_partial(p1, testbuf_1a, TESTBUFSIZE_1, 0); + pbuf_copy_partial(rest2, testbuf_2a, TESTBUFSIZE_2, 0); + pbuf_copy_partial(rest3, testbuf_3a, TESTBUFSIZE_3, 0); + fail_if(memcmp(testbuf_1, testbuf_1a, TESTBUFSIZE_1)); + fail_if(memcmp(testbuf_2, testbuf_2a, TESTBUFSIZE_2)); + fail_if(memcmp(testbuf_3, testbuf_3a, TESTBUFSIZE_3)); + + pbuf_free(p1); + pbuf_free(rest2); + pbuf_free(rest3); +} +END_TEST + +/* Test for bug that writing with pbuf_take_at() did nothing + * and returned ERR_OK when writing at beginning of a pbuf + * in the chain. + */ +START_TEST(test_pbuf_take_at_edge) +{ + err_t res; + u8_t *out; + int i; + u8_t testdata[] = { 0x01, 0x08, 0x82, 0x02 }; + struct pbuf *p = pbuf_alloc(PBUF_RAW, 1024, PBUF_POOL); + struct pbuf *q = p->next; + LWIP_UNUSED_ARG(_i); + /* alloc big enough to get a chain of pbufs */ + fail_if(p->tot_len == p->len); + memset(p->payload, 0, p->len); + memset(q->payload, 0, q->len); + + /* copy data to the beginning of first pbuf */ + res = pbuf_take_at(p, &testdata, sizeof(testdata), 0); + fail_unless(res == ERR_OK); + + out = (u8_t*)p->payload; + for (i = 0; i < (int)sizeof(testdata); i++) { + fail_unless(out[i] == testdata[i], + "Bad data at pos %d, was %02X, expected %02X", i, out[i], testdata[i]); + } + + /* copy data to the just before end of first pbuf */ + res = pbuf_take_at(p, &testdata, sizeof(testdata), p->len - 1); + fail_unless(res == ERR_OK); + + out = (u8_t*)p->payload; + fail_unless(out[p->len - 1] == testdata[0], + "Bad data at pos %d, was %02X, expected %02X", p->len - 1, out[p->len - 1], testdata[0]); + out = (u8_t*)q->payload; + for (i = 1; i < (int)sizeof(testdata); i++) { + fail_unless(out[i-1] == testdata[i], + "Bad data at pos %d, was %02X, expected %02X", p->len - 1 + i, out[i-1], testdata[i]); + } + + /* copy data to the beginning of second pbuf */ + res = pbuf_take_at(p, &testdata, sizeof(testdata), p->len); + fail_unless(res == ERR_OK); + + out = (u8_t*)p->payload; + for (i = 0; i < (int)sizeof(testdata); i++) { + fail_unless(out[i] == testdata[i], + "Bad data at pos %d, was %02X, expected %02X", p->len+i, out[i], testdata[i]); + } + pbuf_free(p); +} +END_TEST + +/* Verify pbuf_put_at()/pbuf_get_at() when using + * offsets equal to beginning of new pbuf in chain + */ +START_TEST(test_pbuf_get_put_at_edge) +{ + u8_t *out; + u8_t testdata = 0x01; + u8_t getdata; + struct pbuf *p = pbuf_alloc(PBUF_RAW, 1024, PBUF_POOL); + struct pbuf *q = p->next; + LWIP_UNUSED_ARG(_i); + /* alloc big enough to get a chain of pbufs */ + fail_if(p->tot_len == p->len); + memset(p->payload, 0, p->len); + memset(q->payload, 0, q->len); + + /* put byte at the beginning of second pbuf */ + pbuf_put_at(p, p->len, testdata); + + out = (u8_t*)q->payload; + fail_unless(*out == testdata, + "Bad data at pos %d, was %02X, expected %02X", p->len, *out, testdata); + + getdata = pbuf_get_at(p, p->len); + fail_unless(*out == getdata, + "pbuf_get_at() returned bad data at pos %d, was %02X, expected %02X", p->len, getdata, *out); + pbuf_free(p); +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +pbuf_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_pbuf_alloc_zero_pbufs), + TESTFUNC(test_pbuf_copy_zero_pbuf), + TESTFUNC(test_pbuf_copy_unmatched_chains), + TESTFUNC(test_pbuf_copy_partial_pbuf), + TESTFUNC(test_pbuf_split_64k_on_small_pbufs), + TESTFUNC(test_pbuf_queueing_bigger_than_64k), + TESTFUNC(test_pbuf_take_at_edge), + TESTFUNC(test_pbuf_get_put_at_edge) + }; + return create_suite("PBUF", tests, sizeof(tests)/sizeof(testfunc), pbuf_setup, pbuf_teardown); +} diff --git a/middleware/lwip/test/unit/core/test_pbuf.h b/middleware/lwip/test/unit/core/test_pbuf.h new file mode 100644 index 0000000..da7730a --- /dev/null +++ b/middleware/lwip/test/unit/core/test_pbuf.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_PBUF_H +#define LWIP_HDR_TEST_PBUF_H + +#include "../lwip_check.h" + +Suite *pbuf_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/core/test_timers.c b/middleware/lwip/test/unit/core/test_timers.c new file mode 100644 index 0000000..820b718 --- /dev/null +++ b/middleware/lwip/test/unit/core/test_timers.c @@ -0,0 +1,233 @@ +#include "test_timers.h" + +#include "lwip/def.h" +#include "lwip/timeouts.h" +#include "arch/sys_arch.h" + +/* Setups/teardown functions */ + +static struct sys_timeo* old_list_head; + +static void +timers_setup(void) +{ + struct sys_timeo** list_head = sys_timeouts_get_next_timeout(); + old_list_head = *list_head; + *list_head = NULL; +} + +static void +timers_teardown(void) +{ + struct sys_timeo** list_head = sys_timeouts_get_next_timeout(); + *list_head = old_list_head; + lwip_sys_now = 0; +} + +static int fired[3]; +static void +dummy_handler(void* arg) +{ + int index = LWIP_PTR_NUMERIC_CAST(int, arg); + fired[index] = 1; +} + +#define HANDLER_EXECUTION_TIME 5 +static int cyclic_fired; +static void +dummy_cyclic_handler(void) +{ + cyclic_fired = 1; + lwip_sys_now += HANDLER_EXECUTION_TIME; +} + +struct lwip_cyclic_timer test_cyclic = {10, dummy_cyclic_handler}; + +static void +do_test_cyclic_timers(u32_t offset) +{ + struct sys_timeo** list_head = sys_timeouts_get_next_timeout(); + + /* verify normal timer expiration */ + lwip_sys_now = offset + 0; + sys_timeout(test_cyclic.interval_ms, lwip_cyclic_timer, &test_cyclic); + + cyclic_fired = 0; + sys_check_timeouts(); + fail_unless(cyclic_fired == 0); + + lwip_sys_now = offset + test_cyclic.interval_ms; + sys_check_timeouts(); + fail_unless(cyclic_fired == 1); + + fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + test_cyclic.interval_ms - HANDLER_EXECUTION_TIME)); + + sys_untimeout(lwip_cyclic_timer, &test_cyclic); + + + /* verify "overload" - next cyclic timer execution is already overdue twice */ + lwip_sys_now = offset + 0; + sys_timeout(test_cyclic.interval_ms, lwip_cyclic_timer, &test_cyclic); + + cyclic_fired = 0; + sys_check_timeouts(); + fail_unless(cyclic_fired == 0); + + lwip_sys_now = offset + 2*test_cyclic.interval_ms; + sys_check_timeouts(); + fail_unless(cyclic_fired == 1); + + fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + test_cyclic.interval_ms)); +} + +START_TEST(test_cyclic_timers) +{ + LWIP_UNUSED_ARG(_i); + + /* check without u32_t wraparound */ + do_test_cyclic_timers(0); + + /* check with u32_t wraparound */ + do_test_cyclic_timers(0xfffffff0); +} +END_TEST + +/* reproduce bug #52748: the bug in timeouts.c */ +START_TEST(test_bug52748) +{ + LWIP_UNUSED_ARG(_i); + + memset(&fired, 0, sizeof(fired)); + + lwip_sys_now = 50; + sys_timeout(20, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0)); + sys_timeout( 5, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2)); + + lwip_sys_now = 55; + sys_check_timeouts(); + fail_unless(fired[0] == 0); + fail_unless(fired[1] == 0); + fail_unless(fired[2] == 1); + + lwip_sys_now = 60; + sys_timeout(10, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1)); + sys_check_timeouts(); + fail_unless(fired[0] == 0); + fail_unless(fired[1] == 0); + fail_unless(fired[2] == 1); + + lwip_sys_now = 70; + sys_check_timeouts(); + fail_unless(fired[0] == 1); + fail_unless(fired[1] == 1); + fail_unless(fired[2] == 1); +} +END_TEST + +static void +do_test_timers(u32_t offset) +{ + struct sys_timeo** list_head = sys_timeouts_get_next_timeout(); + + lwip_sys_now = offset + 0; + + sys_timeout(10, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0)); + fail_unless(sys_timeouts_sleeptime() == 10); + sys_timeout(20, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1)); + fail_unless(sys_timeouts_sleeptime() == 10); + sys_timeout( 5, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2)); + fail_unless(sys_timeouts_sleeptime() == 5); + + /* linked list correctly sorted? */ + fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + 5)); + fail_unless((*list_head)->next->time == (u32_t)(lwip_sys_now + 10)); + fail_unless((*list_head)->next->next->time == (u32_t)(lwip_sys_now + 20)); + + /* check timers expire in correct order */ + memset(&fired, 0, sizeof(fired)); + + lwip_sys_now += 4; + sys_check_timeouts(); + fail_unless(fired[2] == 0); + + lwip_sys_now += 1; + sys_check_timeouts(); + fail_unless(fired[2] == 1); + + lwip_sys_now += 4; + sys_check_timeouts(); + fail_unless(fired[0] == 0); + + lwip_sys_now += 1; + sys_check_timeouts(); + fail_unless(fired[0] == 1); + + lwip_sys_now += 9; + sys_check_timeouts(); + fail_unless(fired[1] == 0); + + lwip_sys_now += 1; + sys_check_timeouts(); + fail_unless(fired[1] == 1); + + sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0)); + sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1)); + sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2)); +} + +START_TEST(test_timers) +{ + LWIP_UNUSED_ARG(_i); + + /* check without u32_t wraparound */ + do_test_timers(0); + + /* check with u32_t wraparound */ + do_test_timers(0xfffffff0); +} +END_TEST + +START_TEST(test_long_timer) +{ + LWIP_UNUSED_ARG(_i); + + memset(&fired, 0, sizeof(fired)); + lwip_sys_now = 0; + + sys_timeout(LWIP_UINT32_MAX / 4, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0)); + fail_unless(sys_timeouts_sleeptime() == LWIP_UINT32_MAX / 4); + + sys_check_timeouts(); + fail_unless(fired[0] == 0); + + lwip_sys_now += LWIP_UINT32_MAX / 8; + + sys_check_timeouts(); + fail_unless(fired[0] == 0); + + lwip_sys_now += LWIP_UINT32_MAX / 8; + + sys_check_timeouts(); + fail_unless(fired[0] == 0); + + lwip_sys_now += 1; + + sys_check_timeouts(); + fail_unless(fired[0] == 1); + + sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0)); +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +timers_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_bug52748), + TESTFUNC(test_cyclic_timers), + TESTFUNC(test_timers), + TESTFUNC(test_long_timer), + }; + return create_suite("TIMERS", tests, LWIP_ARRAYSIZE(tests), timers_setup, timers_teardown); +} diff --git a/middleware/lwip/test/unit/core/test_timers.h b/middleware/lwip/test/unit/core/test_timers.h new file mode 100644 index 0000000..b16ab75 --- /dev/null +++ b/middleware/lwip/test/unit/core/test_timers.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_TIMERS_H +#define LWIP_HDR_TEST_TIMERS_H + +#include "../lwip_check.h" + +Suite *timers_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/dhcp/test_dhcp.c b/middleware/lwip/test/unit/dhcp/test_dhcp.c new file mode 100644 index 0000000..ac8a219 --- /dev/null +++ b/middleware/lwip/test/unit/dhcp/test_dhcp.c @@ -0,0 +1,1103 @@ +#include "test_dhcp.h" + +#include "lwip/netif.h" +#include "lwip/dhcp.h" +#include "lwip/prot/dhcp.h" +#include "lwip/etharp.h" +#include "lwip/inet.h" +#include "netif/ethernet.h" + +#if LWIP_ACD +#if LWIP_DHCP_DOES_ACD_CHECK +#define DHCP_TEST_NUM_ARP_FRAMES 5 +#else +#define DHCP_TEST_NUM_ARP_FRAMES 0 +#endif +#else +#define DHCP_TEST_NUM_ARP_FRAMES 1 +#endif + + +static struct netif net_test; + +static const u8_t broadcast[6] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; + +static const u8_t magic_cookie[] = { 0x63, 0x82, 0x53, 0x63 }; + +static u8_t dhcp_offer[] = { + 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, /* To unit */ + 0x00, 0x0F, 0xEE, 0x30, 0xAB, 0x22, /* From Remote host */ + 0x08, 0x00, /* Protocol: IP */ + 0x45, 0x10, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00, 0x80, 0x11, 0x36, 0xcc, 0xc3, 0xaa, 0xbd, 0xab, 0xc3, 0xaa, 0xbd, 0xc8, /* IP header */ + 0x00, 0x43, 0x00, 0x44, 0x01, 0x34, 0x00, 0x00, /* UDP header */ + + 0x02, /* Type == Boot reply */ + 0x01, 0x06, /* Hw Ethernet, 6 bytes addrlen */ + 0x00, /* 0 hops */ + 0xAA, 0xAA, 0xAA, 0xAA, /* Transaction id, will be overwritten */ + 0x00, 0x00, /* 0 seconds elapsed */ + 0x00, 0x00, /* Flags (unicast) */ + 0x00, 0x00, 0x00, 0x00, /* Client ip */ + 0xc3, 0xaa, 0xbd, 0xc8, /* Your IP */ + 0xc3, 0xaa, 0xbd, 0xab, /* DHCP server ip */ + 0x00, 0x00, 0x00, 0x00, /* relay agent */ + 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* MAC addr + padding */ + + /* Empty server name and boot file name */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + + 0x63, 0x82, 0x53, 0x63, /* Magic cookie */ + 0x35, 0x01, 0x02, /* Message type: Offer */ + 0x36, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* Server identifier (IP) */ + 0x33, 0x04, 0x00, 0x00, 0x00, 0x78, /* Lease time 2 minutes */ + 0x03, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* Router IP */ + 0x01, 0x04, 0xff, 0xff, 0xff, 0x00, /* Subnet mask */ + 0xff, /* End option */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Padding */ +}; + +static u8_t dhcp_ack[] = { + 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, /* To unit */ + 0x00, 0x0f, 0xEE, 0x30, 0xAB, 0x22, /* From remote host */ + 0x08, 0x00, /* Proto IP */ + 0x45, 0x10, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00, 0x80, 0x11, 0x36, 0xcc, 0xc3, 0xaa, 0xbd, 0xab, 0xc3, 0xaa, 0xbd, 0xc8, /* IP header */ + 0x00, 0x43, 0x00, 0x44, 0x01, 0x34, 0x00, 0x00, /* UDP header */ + 0x02, /* Bootp reply */ + 0x01, 0x06, /* Hw type Eth, len 6 */ + 0x00, /* 0 hops */ + 0xAA, 0xAA, 0xAA, 0xAA, + 0x00, 0x00, /* 0 seconds elapsed */ + 0x00, 0x00, /* Flags (unicast) */ + 0x00, 0x00, 0x00, 0x00, /* Client IP */ + 0xc3, 0xaa, 0xbd, 0xc8, /* Your IP */ + 0xc3, 0xaa, 0xbd, 0xab, /* DHCP server IP */ + 0x00, 0x00, 0x00, 0x00, /* Relay agent */ + 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Macaddr + padding */ + + /* Empty server name and boot file name */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + + 0x63, 0x82, 0x53, 0x63, /* Magic cookie */ + 0x35, 0x01, 0x05, /* Dhcp message type ack */ + 0x36, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* DHCP server identifier */ + 0x33, 0x04, 0x00, 0x00, 0x00, 0x78, /* Lease time 2 minutes */ + 0x03, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* Router IP */ + 0x01, 0x04, 0xff, 0xff, 0xff, 0x00, /* Netmask */ + 0xff, /* End marker */ + + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Padding */ +}; + +static const u8_t arpreply[] = { + 0x00, 0x23, 0xC1, 0xDE, 0xD0, 0x0D, /* dst mac */ + 0x00, 0x32, 0x44, 0x20, 0x01, 0x02, /* src mac */ + 0x08, 0x06, /* proto arp */ + 0x00, 0x01, /* hw eth */ + 0x08, 0x00, /* proto ip */ + 0x06, /* hw addr len 6 */ + 0x04, /* proto addr len 4 */ + 0x00, 0x02, /* arp reply */ + 0x00, 0x32, 0x44, 0x20, 0x01, 0x02, /* sender mac */ + 0xc3, 0xaa, 0xbd, 0xc8, /* sender ip */ + 0x00, 0x23, 0xC1, 0xDE, 0xD0, 0x0D, /* target mac */ + 0x00, 0x00, 0x00, 0x00, /* target ip */ +}; + +static int txpacket; +static enum tcase { + TEST_LWIP_DHCP, + TEST_LWIP_DHCP_NAK, + TEST_LWIP_DHCP_RELAY, + TEST_LWIP_DHCP_NAK_NO_ENDMARKER, + TEST_LWIP_DHCP_INVALID_OVERLOAD, + TEST_NONE +} tcase; + +static int debug = 0; +static void setdebug(int a) {debug = a;} + +static int tick = 0; +static void tick_lwip(void) +{ + tick++; +#if LWIP_DHCP_DOES_ACD_CHECK + acd_tmr(); +#endif + if (tick % 5 == 0) { + dhcp_fine_tmr(); + } + if (tick % 600 == 0) { + dhcp_coarse_tmr(); + } +} + +static void send_pkt(struct netif *netif, const u8_t *data, size_t len) +{ + struct pbuf *p, *q; + LWIP_ASSERT("pkt too big", len <= 0xFFFF); + p = pbuf_alloc(PBUF_RAW, (u16_t)len, PBUF_POOL); + + if (debug) { + /* Dump data */ + u32_t i; + printf("RX data (len %d)", p->tot_len); + for (i = 0; i < len; i++) { + printf(" %02X", data[i]); + } + printf("\n"); + } + + fail_unless(p != NULL); + for(q = p; q != NULL; q = q->next) { + memcpy(q->payload, data, q->len); + data += q->len; + } + netif->input(p, netif); +} + +static err_t lwip_tx_func(struct netif *netif, struct pbuf *p); + +static err_t testif_init(struct netif *netif) +{ + netif->name[0] = 'c'; + netif->name[1] = 'h'; + netif->output = etharp_output; + netif->linkoutput = lwip_tx_func; + netif->mtu = 1500; + netif->hwaddr_len = 6; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP; + + netif->hwaddr[0] = 0x00; + netif->hwaddr[1] = 0x23; + netif->hwaddr[2] = 0xC1; + netif->hwaddr[3] = 0xDE; + netif->hwaddr[4] = 0xD0; + netif->hwaddr[5] = 0x0D; + + return ERR_OK; +} + +static void dhcp_setup(void) +{ + txpacket = 0; + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void dhcp_teardown(void) +{ + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void check_pkt(struct pbuf *p, u32_t pos, const u8_t *mem, u32_t len) +{ + u8_t *data; + + fail_if((pos + len) > p->tot_len); + while (pos > p->len && p->next) { + pos -= p->len; + p = p->next; + } + fail_if(p == NULL); + fail_unless(pos + len <= p->len); /* All data we seek within same pbuf */ + + data = (u8_t*)p->payload; + fail_if(memcmp(&data[pos], mem, len), "data at pos %d, len %d in packet %d did not match", pos, len, txpacket); +} + +static void check_pkt_fuzzy(struct pbuf *p, u32_t startpos, const u8_t *mem, u32_t len) +{ + int found; + u32_t i; + u8_t *data; + + fail_if((startpos + len) > p->tot_len); + while (startpos > p->len && p->next) { + startpos -= p->len; + p = p->next; + } + fail_if(p == NULL); + fail_unless(startpos + len <= p->len); /* All data we seek within same pbuf */ + + found = 0; + data = (u8_t*)p->payload; + for (i = startpos; i <= (p->len - len); i++) { + if (memcmp(&data[i], mem, len) == 0) { + found = 1; + break; + } + } + fail_unless(found); +} + +static err_t lwip_tx_func(struct netif *netif, struct pbuf *p) +{ + fail_unless(netif == &net_test); + txpacket++; + + if (debug) { + struct pbuf *pp = p; + /* Dump data */ + printf("TX data (pkt %d, len %d, tick %d)", txpacket, p->tot_len, tick); + do { + int i; + for (i = 0; i < pp->len; i++) { + printf(" %02X", ((u8_t *) pp->payload)[i]); + } + if (pp->next) { + pp = pp->next; + } + } while (pp->next); + printf("\n"); + } + + switch (tcase) { + case TEST_LWIP_DHCP: + switch (txpacket) { + case 1: + case 2: + { + const u8_t ipproto[] = { 0x08, 0x00 }; + const u8_t bootp_start[] = { 0x01, 0x01, 0x06, 0x00}; /* bootp request, eth, hwaddr len 6, 0 hops */ + const u8_t ipaddrs[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + + check_pkt(p, 0, broadcast, 6); /* eth level dest: broadcast */ + check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */ + + check_pkt(p, 12, ipproto, sizeof(ipproto)); /* eth level proto: ip */ + + check_pkt(p, 42, bootp_start, sizeof(bootp_start)); + + check_pkt(p, 53, ipaddrs, sizeof(ipaddrs)); + + check_pkt(p, 70, netif->hwaddr, 6); /* mac addr inside bootp */ + + check_pkt(p, 278, magic_cookie, sizeof(magic_cookie)); + + /* Check dhcp message type, can be at different positions */ + if (txpacket == 1) { + u8_t dhcp_discover_opt[] = { 0x35, 0x01, 0x01 }; + check_pkt_fuzzy(p, 282, dhcp_discover_opt, sizeof(dhcp_discover_opt)); + } else if (txpacket == 2) { + u8_t dhcp_request_opt[] = { 0x35, 0x01, 0x03 }; + u8_t requested_ipaddr[] = { 0x32, 0x04, 0xc3, 0xaa, 0xbd, 0xc8 }; /* Ask for offered IP */ + + check_pkt_fuzzy(p, 282, dhcp_request_opt, sizeof(dhcp_request_opt)); + check_pkt_fuzzy(p, 282, requested_ipaddr, sizeof(requested_ipaddr)); + } + break; + } +#if DHCP_TEST_NUM_ARP_FRAMES > 0 + case 3: +#if DHCP_TEST_NUM_ARP_FRAMES > 1 + case 4: +#if DHCP_TEST_NUM_ARP_FRAMES > 2 + case 5: +#if DHCP_TEST_NUM_ARP_FRAMES > 3 + case 6: +#if DHCP_TEST_NUM_ARP_FRAMES > 4 + case 7: +#endif +#endif +#endif +#endif + { + const u8_t arpproto[] = { 0x08, 0x06 }; + + check_pkt(p, 0, broadcast, 6); /* eth level dest: broadcast */ + check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */ + + check_pkt(p, 12, arpproto, sizeof(arpproto)); /* eth level proto: ip */ + break; + } +#endif + default: + fail(); + break; + } + break; + + case TEST_LWIP_DHCP_NAK: + { + const u8_t ipproto[] = { 0x08, 0x00 }; + const u8_t bootp_start[] = { 0x01, 0x01, 0x06, 0x00}; /* bootp request, eth, hwaddr len 6, 0 hops */ + const u8_t ipaddrs[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + const u8_t dhcp_nak_opt[] = { 0x35, 0x01, 0x04 }; + const u8_t requested_ipaddr[] = { 0x32, 0x04, 0xc3, 0xaa, 0xbd, 0xc8 }; /* offered IP */ + + fail_unless(txpacket == 4); + check_pkt(p, 0, broadcast, 6); /* eth level dest: broadcast */ + check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */ + + check_pkt(p, 12, ipproto, sizeof(ipproto)); /* eth level proto: ip */ + + check_pkt(p, 42, bootp_start, sizeof(bootp_start)); + + check_pkt(p, 53, ipaddrs, sizeof(ipaddrs)); + + check_pkt(p, 70, netif->hwaddr, 6); /* mac addr inside bootp */ + + check_pkt(p, 278, magic_cookie, sizeof(magic_cookie)); + + check_pkt_fuzzy(p, 282, dhcp_nak_opt, sizeof(dhcp_nak_opt)); /* NAK the ack */ + + check_pkt_fuzzy(p, 282, requested_ipaddr, sizeof(requested_ipaddr)); + break; + } + + case TEST_LWIP_DHCP_RELAY: + switch (txpacket) { + case 1: + case 2: + { + const u8_t ipproto[] = { 0x08, 0x00 }; + const u8_t bootp_start[] = { 0x01, 0x01, 0x06, 0x00}; /* bootp request, eth, hwaddr len 6, 0 hops */ + const u8_t ipaddrs[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + + check_pkt(p, 0, broadcast, 6); /* eth level dest: broadcast */ + check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */ + + check_pkt(p, 12, ipproto, sizeof(ipproto)); /* eth level proto: ip */ + + check_pkt(p, 42, bootp_start, sizeof(bootp_start)); + + check_pkt(p, 53, ipaddrs, sizeof(ipaddrs)); + + check_pkt(p, 70, netif->hwaddr, 6); /* mac addr inside bootp */ + + check_pkt(p, 278, magic_cookie, sizeof(magic_cookie)); + + /* Check dhcp message type, can be at different positions */ + if (txpacket == 1) { + u8_t dhcp_discover_opt[] = { 0x35, 0x01, 0x01 }; + check_pkt_fuzzy(p, 282, dhcp_discover_opt, sizeof(dhcp_discover_opt)); + } else if (txpacket == 2) { + u8_t dhcp_request_opt[] = { 0x35, 0x01, 0x03 }; + u8_t requested_ipaddr[] = { 0x32, 0x04, 0x4f, 0x8a, 0x33, 0x05 }; /* Ask for offered IP */ + + check_pkt_fuzzy(p, 282, dhcp_request_opt, sizeof(dhcp_request_opt)); + check_pkt_fuzzy(p, 282, requested_ipaddr, sizeof(requested_ipaddr)); + } + break; + } + case 3: +#if DHCP_TEST_NUM_ARP_FRAMES > 0 + case 4: +#if DHCP_TEST_NUM_ARP_FRAMES > 1 + case 5: +#if DHCP_TEST_NUM_ARP_FRAMES > 2 + case 6: +#if DHCP_TEST_NUM_ARP_FRAMES > 3 + case 7: +#if DHCP_TEST_NUM_ARP_FRAMES > 4 + case 8: +#endif +#endif +#endif +#endif + { + const u8_t arpproto[] = { 0x08, 0x06 }; + + check_pkt(p, 0, broadcast, 6); /* eth level dest: broadcast */ + check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */ + + check_pkt(p, 12, arpproto, sizeof(arpproto)); /* eth level proto: ip */ + break; + } +#endif + case 4 + DHCP_TEST_NUM_ARP_FRAMES: + { + const u8_t fake_arp[6] = { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xab }; + const u8_t ipproto[] = { 0x08, 0x00 }; + const u8_t bootp_start[] = { 0x01, 0x01, 0x06, 0x00}; /* bootp request, eth, hwaddr len 6, 0 hops */ + const u8_t ipaddrs[] = { 0x00, 0x4f, 0x8a, 0x33, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + const u8_t dhcp_request_opt[] = { 0x35, 0x01, 0x03 }; + + check_pkt(p, 0, fake_arp, 6); /* eth level dest: broadcast */ + check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */ + + check_pkt(p, 12, ipproto, sizeof(ipproto)); /* eth level proto: ip */ + + check_pkt(p, 42, bootp_start, sizeof(bootp_start)); + + check_pkt(p, 53, ipaddrs, sizeof(ipaddrs)); + + check_pkt(p, 70, netif->hwaddr, 6); /* mac addr inside bootp */ + + check_pkt(p, 278, magic_cookie, sizeof(magic_cookie)); + + /* Check dhcp message type, can be at different positions */ + check_pkt_fuzzy(p, 282, dhcp_request_opt, sizeof(dhcp_request_opt)); + break; + } + default: + fail(); + break; + } + break; + + default: + break; + } + + return ERR_OK; +} + +/* + * Test basic happy flow DHCP session. + * Validate that xid is checked. + */ +START_TEST(test_dhcp) +{ + ip4_addr_t addr; + ip4_addr_t netmask; + ip4_addr_t gw; + int i; + u32_t xid; + LWIP_UNUSED_ARG(_i); + + tcase = TEST_LWIP_DHCP; + setdebug(0); + + IP4_ADDR(&addr, 0, 0, 0, 0); + IP4_ADDR(&netmask, 0, 0, 0, 0); + IP4_ADDR(&gw, 0, 0, 0, 0); + + netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input); + netif_set_link_up(&net_test); + netif_set_up(&net_test); + + dhcp_start(&net_test); + + fail_unless(txpacket == 1); /* DHCP discover sent */ + xid = netif_dhcp_data(&net_test)->xid; /* Write bad xid, not using htonl! */ + memcpy(&dhcp_offer[46], &xid, 4); + send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer)); + + /* IP addresses should be zero */ + fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t))); + fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t))); + fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t))); + + fail_unless(txpacket == 1, "TX %d packets, expected 1", txpacket); /* Nothing more sent */ + xid = htonl(netif_dhcp_data(&net_test)->xid); + memcpy(&dhcp_offer[46], &xid, 4); /* insert correct transaction id */ + send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer)); + + fail_unless(txpacket == 2, "TX %d packets, expected 2", txpacket); /* DHCP request sent */ + xid = netif_dhcp_data(&net_test)->xid; /* Write bad xid, not using htonl! */ + memcpy(&dhcp_ack[46], &xid, 4); + send_pkt(&net_test, dhcp_ack, sizeof(dhcp_ack)); + + fail_unless(txpacket == 2, "TX %d packets, still expected 2", txpacket); /* No more sent */ + xid = htonl(netif_dhcp_data(&net_test)->xid); /* xid updated */ + memcpy(&dhcp_ack[46], &xid, 4); /* insert transaction id */ + send_pkt(&net_test, dhcp_ack, sizeof(dhcp_ack)); + + fail_unless(txpacket == 2); + + for (i = 0; i < 200; i++) { + tick_lwip(); + } + fail_unless(txpacket == (2 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (2 + DHCP_TEST_NUM_ARP_FRAMES)); + + /* Interface up */ + fail_unless(netif_is_up(&net_test)); + + /* Now it should have taken the IP */ + IP4_ADDR(&addr, 195, 170, 189, 200); + IP4_ADDR(&netmask, 255, 255, 255, 0); + IP4_ADDR(&gw, 195, 170, 189, 171); + fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t))); + fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t))); + fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t))); + + tcase = TEST_NONE; + dhcp_stop(&net_test); + dhcp_cleanup(&net_test); + netif_remove(&net_test); +} +END_TEST + +/* + * Test that IP address is not taken and NAK is sent if someone + * replies to ARP requests for the offered address. + */ +START_TEST(test_dhcp_nak) +{ + ip4_addr_t addr; + ip4_addr_t netmask; + ip4_addr_t gw; + u32_t xid; + LWIP_UNUSED_ARG(_i); + + tcase = TEST_LWIP_DHCP; + setdebug(0); + + IP4_ADDR(&addr, 0, 0, 0, 0); + IP4_ADDR(&netmask, 0, 0, 0, 0); + IP4_ADDR(&gw, 0, 0, 0, 0); + + netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input); + netif_set_link_up(&net_test); + netif_set_up(&net_test); + + dhcp_start(&net_test); + + fail_unless(txpacket == 1); /* DHCP discover sent */ + xid = netif_dhcp_data(&net_test)->xid; /* Write bad xid, not using htonl! */ + memcpy(&dhcp_offer[46], &xid, 4); + send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer)); + + /* IP addresses should be zero */ + fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t))); + fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t))); + fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t))); + + fail_unless(txpacket == 1); /* Nothing more sent */ + xid = htonl(netif_dhcp_data(&net_test)->xid); + memcpy(&dhcp_offer[46], &xid, 4); /* insert correct transaction id */ + send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer)); + + fail_unless(txpacket == 2); /* DHCP request sent */ + xid = netif_dhcp_data(&net_test)->xid; /* Write bad xid, not using htonl! */ + memcpy(&dhcp_ack[46], &xid, 4); + send_pkt(&net_test, dhcp_ack, sizeof(dhcp_ack)); + + fail_unless(txpacket == 2); /* No more sent */ + xid = htonl(netif_dhcp_data(&net_test)->xid); /* xid updated */ + memcpy(&dhcp_ack[46], &xid, 4); /* insert transaction id */ + send_pkt(&net_test, dhcp_ack, sizeof(dhcp_ack)); + + fail_unless(txpacket == 2); /* ARP request sent */ + + while (txpacket == 2) { + tick_lwip(); + } + fail_unless(txpacket == 3); + + tcase = TEST_LWIP_DHCP_NAK; /* Switch testcase */ + + /* Send arp reply, mark offered IP as taken */ + send_pkt(&net_test, arpreply, sizeof(arpreply)); + + fail_unless(txpacket == 4); /* DHCP nak sent */ + + tcase = TEST_NONE; + dhcp_stop(&net_test); + dhcp_cleanup(&net_test); + netif_remove(&net_test); +} +END_TEST + +/* + * Test case based on captured data where + * replies are sent from a different IP than the + * one the client unicasted to. + */ +START_TEST(test_dhcp_relayed) +{ + u8_t relay_offer[] = { + 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, + 0x00, 0x22, 0x93, 0x5a, 0xf7, 0x60, + 0x08, 0x00, 0x45, 0x00, + 0x01, 0x38, 0xfd, 0x53, 0x00, 0x00, 0x40, 0x11, + 0x78, 0x46, 0x4f, 0x8a, 0x32, 0x02, 0x4f, 0x8a, + 0x33, 0x05, 0x00, 0x43, 0x00, 0x44, 0x01, 0x24, + 0x00, 0x00, 0x02, 0x01, 0x06, 0x00, 0x51, 0x35, + 0xb6, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x4f, 0x8a, 0x33, 0x05, 0x00, 0x00, + 0x00, 0x00, 0x0a, 0xb5, 0x04, 0x01, 0x00, 0x23, + 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82, + 0x53, 0x63, 0x01, 0x04, 0xff, 0xff, 0xfe, 0x00, + 0x03, 0x04, 0x4f, 0x8a, 0x32, 0x01, 0x06, 0x08, + 0x4f, 0x8a, 0x00, 0xb4, 0x55, 0x08, 0x1f, 0xd1, + 0x1c, 0x04, 0x4f, 0x8a, 0x33, 0xff, 0x33, 0x04, + 0x00, 0x00, 0x54, 0x49, 0x35, 0x01, 0x02, 0x36, + 0x04, 0x0a, 0xb5, 0x04, 0x01, 0xff + }; + + u8_t relay_ack1[] = { + 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x22, + 0x93, 0x5a, 0xf7, 0x60, 0x08, 0x00, 0x45, 0x00, + 0x01, 0x38, 0xfd, 0x55, 0x00, 0x00, 0x40, 0x11, + 0x78, 0x44, 0x4f, 0x8a, 0x32, 0x02, 0x4f, 0x8a, + 0x33, 0x05, 0x00, 0x43, 0x00, 0x44, 0x01, 0x24, + 0x00, 0x00, 0x02, 0x01, 0x06, 0x00, 0x51, 0x35, + 0xb6, 0xa1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x4f, 0x8a, 0x33, 0x05, 0x00, 0x00, + 0x00, 0x00, 0x0a, 0xb5, 0x04, 0x01, 0x00, 0x23, + 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82, + 0x53, 0x63, 0x01, 0x04, 0xff, 0xff, 0xfe, 0x00, + 0x03, 0x04, 0x4f, 0x8a, 0x32, 0x01, 0x06, 0x08, + 0x4f, 0x8a, 0x00, 0xb4, 0x55, 0x08, 0x1f, 0xd1, + 0x1c, 0x04, 0x4f, 0x8a, 0x33, 0xff, 0x33, 0x04, + 0x00, 0x00, 0x54, 0x49, 0x35, 0x01, 0x05, 0x36, + 0x04, 0x0a, 0xb5, 0x04, 0x01, 0xff + }; + + u8_t relay_ack2[] = { + 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, + 0x00, 0x22, 0x93, 0x5a, 0xf7, 0x60, + 0x08, 0x00, 0x45, 0x00, + 0x01, 0x38, 0xfa, 0x18, 0x00, 0x00, 0x40, 0x11, + 0x7b, 0x81, 0x4f, 0x8a, 0x32, 0x02, 0x4f, 0x8a, + 0x33, 0x05, 0x00, 0x43, 0x00, 0x44, 0x01, 0x24, + 0x00, 0x00, 0x02, 0x01, 0x06, 0x00, 0x49, 0x8b, + 0x6e, 0xab, 0x00, 0x00, 0x00, 0x00, 0x4f, 0x8a, + 0x33, 0x05, 0x4f, 0x8a, 0x33, 0x05, 0x00, 0x00, + 0x00, 0x00, 0x0a, 0xb5, 0x04, 0x01, 0x00, 0x23, + 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82, + 0x53, 0x63, 0x01, 0x04, 0xff, 0xff, 0xfe, 0x00, + 0x03, 0x04, 0x4f, 0x8a, 0x32, 0x01, 0x06, 0x08, + 0x4f, 0x8a, 0x00, 0xb4, 0x55, 0x08, 0x1f, 0xd1, + 0x1c, 0x04, 0x4f, 0x8a, 0x33, 0xff, 0x33, 0x04, + 0x00, 0x00, 0x54, 0x60, 0x35, 0x01, 0x05, 0x36, + 0x04, 0x0a, 0xb5, 0x04, 0x01, 0xff }; + + const u8_t arp_resp[] = { + 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, /* DEST */ + 0x00, 0x22, 0x93, 0x5a, 0xf7, 0x60, /* SRC */ + 0x08, 0x06, /* Type: ARP */ + 0x00, 0x01, /* HW: Ethernet */ + 0x08, 0x00, /* PROTO: IP */ + 0x06, /* HW size */ + 0x04, /* PROTO size */ + 0x00, 0x02, /* OPCODE: Reply */ + + 0x12, 0x34, 0x56, 0x78, 0x9a, 0xab, /* Target MAC */ + 0x4f, 0x8a, 0x32, 0x01, /* Target IP */ + + 0x00, 0x23, 0xc1, 0x00, 0x06, 0x50, /* src mac */ + 0x4f, 0x8a, 0x33, 0x05, /* src ip */ + + /* Padding follows.. */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 }; + + ip4_addr_t addr; + ip4_addr_t netmask; + ip4_addr_t gw; + int i; + u32_t xid; + LWIP_UNUSED_ARG(_i); + + tcase = TEST_LWIP_DHCP_RELAY; + setdebug(0); + + IP4_ADDR(&addr, 0, 0, 0, 0); + IP4_ADDR(&netmask, 0, 0, 0, 0); + IP4_ADDR(&gw, 0, 0, 0, 0); + + netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input); + netif_set_link_up(&net_test); + netif_set_up(&net_test); + + dhcp_start(&net_test); + + fail_unless(txpacket == 1); /* DHCP discover sent */ + + /* IP addresses should be zero */ + fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t))); + fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t))); + fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t))); + + fail_unless(txpacket == 1); /* Nothing more sent */ + xid = htonl(netif_dhcp_data(&net_test)->xid); + memcpy(&relay_offer[46], &xid, 4); /* insert correct transaction id */ + send_pkt(&net_test, relay_offer, sizeof(relay_offer)); + + /* request sent? */ + fail_unless(txpacket == 2, "txpkt = %d, should be 2", txpacket); + xid = htonl(netif_dhcp_data(&net_test)->xid); /* xid updated */ + memcpy(&relay_ack1[46], &xid, 4); /* insert transaction id */ + send_pkt(&net_test, relay_ack1, sizeof(relay_ack1)); + + for (i = 0; i < 200; i++) { + tick_lwip(); + } + fail_unless(txpacket == (2 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (2 + DHCP_TEST_NUM_ARP_FRAMES)); + + /* Interface up */ + fail_unless(netif_is_up(&net_test)); + + /* Now it should have taken the IP */ + IP4_ADDR(&addr, 79, 138, 51, 5); + IP4_ADDR(&netmask, 255, 255, 254, 0); + IP4_ADDR(&gw, 79, 138, 50, 1); + fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t))); + fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t))); + fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t))); + + fail_unless(txpacket == (2 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (2 + DHCP_TEST_NUM_ARP_FRAMES)); + + for (i = 0; i < 108000 - 25; i++) { + tick_lwip(); + } + + fail_unless(netif_is_up(&net_test)); + fail_unless(txpacket == (3 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (3 + DHCP_TEST_NUM_ARP_FRAMES)); + + /* We need to send arp response here.. */ + + send_pkt(&net_test, arp_resp, sizeof(arp_resp)); + + fail_unless(txpacket == (4 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (4 + DHCP_TEST_NUM_ARP_FRAMES)); + fail_unless(netif_is_up(&net_test)); + + xid = htonl(netif_dhcp_data(&net_test)->xid); /* xid updated */ + memcpy(&relay_ack2[46], &xid, 4); /* insert transaction id */ + send_pkt(&net_test, relay_ack2, sizeof(relay_ack2)); + + for (i = 0; i < 100000; i++) { + tick_lwip(); + } + + fail_unless(txpacket == (4 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (5 + DHCP_TEST_NUM_ARP_FRAMES)); + + tcase = TEST_NONE; + dhcp_stop(&net_test); + dhcp_cleanup(&net_test); + netif_remove(&net_test); + +} +END_TEST + +START_TEST(test_dhcp_nak_no_endmarker) +{ + ip4_addr_t addr; + ip4_addr_t netmask; + ip4_addr_t gw; + + u8_t dhcp_nack_no_endmarker[] = { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x54, 0x75, + 0xd0, 0x26, 0xd0, 0x0d, 0x08, 0x00, 0x45, 0x00, + 0x01, 0x15, 0x38, 0x86, 0x00, 0x00, 0xff, 0x11, + 0xc0, 0xa8, 0xc0, 0xa8, 0x01, 0x01, 0xff, 0xff, + 0xff, 0xff, 0x00, 0x43, 0x00, 0x44, 0x01, 0x01, + 0x00, 0x00, 0x02, 0x01, 0x06, 0x00, 0x7a, 0xcb, + 0xba, 0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, + 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82, + 0x53, 0x63, 0x35, 0x01, 0x06, 0x36, 0x04, 0xc0, + 0xa8, 0x01, 0x01, 0x31, 0xef, 0xad, 0x72, 0x31, + 0x43, 0x4e, 0x44, 0x30, 0x32, 0x35, 0x30, 0x43, + 0x52, 0x47, 0x44, 0x38, 0x35, 0x36, 0x3c, 0x08, + 0x4d, 0x53, 0x46, 0x54, 0x20, 0x35, 0x2e, 0x30, + 0x37, 0x0d, 0x01, 0x0f, 0x03, 0x06, 0x2c, 0x2e, + 0x2f, 0x1f, 0x21, 0x79, 0xf9, 0x2b, 0xfc, 0xff, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe2, 0x71, + 0xf3, 0x5b, 0xe2, 0x71, 0x2e, 0x01, 0x08, 0x03, + 0x04, 0xc0, 0xa8, 0x01, 0x01, 0xff, 0xeb, 0x1e, + 0x44, 0xec, 0xeb, 0x1e, 0x30, 0x37, 0x0c, 0x01, + 0x0f, 0x03, 0x06, 0x2c, 0x2e, 0x2f, 0x1f, 0x21, + 0x79, 0xf9, 0x2b, 0xff, 0x25, 0xc0, 0x09, 0xd6, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + }; + u32_t xid; + struct dhcp* dhcp; + u8_t tries; + u16_t request_timeout; + LWIP_UNUSED_ARG(_i); + + tcase = TEST_LWIP_DHCP_NAK_NO_ENDMARKER; + setdebug(0); + + IP4_ADDR(&addr, 0, 0, 0, 0); + IP4_ADDR(&netmask, 0, 0, 0, 0); + IP4_ADDR(&gw, 0, 0, 0, 0); + + netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input); + netif_set_link_up(&net_test); + netif_set_up(&net_test); + + dhcp_start(&net_test); + dhcp = netif_dhcp_data(&net_test); + + fail_unless(txpacket == 1); /* DHCP discover sent */ + xid = dhcp->xid; /* Write bad xid, not using htonl! */ + memcpy(&dhcp_offer[46], &xid, 4); + send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer)); + + /* IP addresses should be zero */ + fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t))); + fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t))); + fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t))); + + fail_unless(txpacket == 1); /* Nothing more sent */ + xid = htonl(dhcp->xid); + memcpy(&dhcp_offer[46], &xid, 4); /* insert correct transaction id */ + send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer)); + + fail_unless(dhcp->state == DHCP_STATE_REQUESTING); + + fail_unless(txpacket == 2); /* No more sent */ + xid = htonl(dhcp->xid); /* xid updated */ + memcpy(&dhcp_nack_no_endmarker[46], &xid, 4); /* insert transaction id */ + tries = dhcp->tries; + request_timeout = dhcp->request_timeout; + send_pkt(&net_test, dhcp_nack_no_endmarker, sizeof(dhcp_nack_no_endmarker)); + + /* NAK should be ignored */ + fail_unless(dhcp->state == DHCP_STATE_REQUESTING); + fail_unless(txpacket == 2); /* No more sent */ + fail_unless(xid == htonl(dhcp->xid)); + fail_unless(tries == dhcp->tries); + fail_unless(request_timeout == dhcp->request_timeout); + + tcase = TEST_NONE; + dhcp_stop(&net_test); + dhcp_cleanup(&net_test); + netif_remove(&net_test); +} +END_TEST + +START_TEST(test_dhcp_invalid_overload) +{ + u8_t dhcp_offer_invalid_overload[] = { + 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, /* To unit */ + 0x00, 0x0F, 0xEE, 0x30, 0xAB, 0x22, /* From Remote host */ + 0x08, 0x00, /* Protocol: IP */ + 0x45, 0x10, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00, 0x80, 0x11, 0x36, 0xcc, 0xc3, 0xaa, 0xbd, 0xab, 0xc3, 0xaa, 0xbd, 0xc8, /* IP header */ + 0x00, 0x43, 0x00, 0x44, 0x01, 0x34, 0x00, 0x00, /* UDP header */ + + 0x02, /* Type == Boot reply */ + 0x01, 0x06, /* Hw Ethernet, 6 bytes addrlen */ + 0x00, /* 0 hops */ + 0xAA, 0xAA, 0xAA, 0xAA, /* Transaction id, will be overwritten */ + 0x00, 0x00, /* 0 seconds elapsed */ + 0x00, 0x00, /* Flags (unicast) */ + 0x00, 0x00, 0x00, 0x00, /* Client ip */ + 0xc3, 0xaa, 0xbd, 0xc8, /* Your IP */ + 0xc3, 0xaa, 0xbd, 0xab, /* DHCP server ip */ + 0x00, 0x00, 0x00, 0x00, /* relay agent */ + 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* MAC addr + padding */ + + /* Empty server name */ + 0x34, 0x01, 0x02, 0xff, /* Overload: SNAME + END */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* Empty boot file name */ + 0x34, 0x01, 0x01, 0xff, /* Overload FILE + END */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + + 0x63, 0x82, 0x53, 0x63, /* Magic cookie */ + 0x35, 0x01, 0x02, /* Message type: Offer */ + 0x36, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* Server identifier (IP) */ + 0x33, 0x04, 0x00, 0x00, 0x00, 0x78, /* Lease time 2 minutes */ + 0x03, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* Router IP */ + 0x01, 0x04, 0xff, 0xff, 0xff, 0x00, /* Subnet mask */ + 0x34, 0x01, 0x03, /* Overload: FILE + SNAME */ + 0xff, /* End option */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Padding */ + }; + ip4_addr_t addr; + ip4_addr_t netmask; + ip4_addr_t gw; + u32_t xid; + LWIP_UNUSED_ARG(_i); + + tcase = TEST_LWIP_DHCP_INVALID_OVERLOAD; + setdebug(0); + + IP4_ADDR(&addr, 0, 0, 0, 0); + IP4_ADDR(&netmask, 0, 0, 0, 0); + IP4_ADDR(&gw, 0, 0, 0, 0); + + netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input); + netif_set_link_up(&net_test); + netif_set_up(&net_test); + + dhcp_start(&net_test); + + fail_unless(txpacket == 1); /* DHCP discover sent */ + xid = htonl(netif_dhcp_data(&net_test)->xid); + memcpy(&dhcp_offer_invalid_overload[46], &xid, 4); /* insert correct transaction id */ + dhcp_offer_invalid_overload[311] = 3; + send_pkt(&net_test, dhcp_offer_invalid_overload, sizeof(dhcp_offer_invalid_overload)); + /* IP addresses should be zero */ + fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t))); + fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t))); + fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t))); + fail_unless(txpacket == 1); /* Nothing more sent */ + + dhcp_offer_invalid_overload[311] = 2; + send_pkt(&net_test, dhcp_offer_invalid_overload, sizeof(dhcp_offer_invalid_overload)); + /* IP addresses should be zero */ + fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t))); + fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t))); + fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t))); + fail_unless(txpacket == 1); /* Nothing more sent */ + + dhcp_offer_invalid_overload[311] = 1; + send_pkt(&net_test, dhcp_offer_invalid_overload, sizeof(dhcp_offer_invalid_overload)); + /* IP addresses should be zero */ + fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t))); + fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t))); + fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t))); + fail_unless(txpacket == 1); /* Nothing more sent */ + + dhcp_offer_invalid_overload[311] = 0; + send_pkt(&net_test, dhcp_offer_invalid_overload, sizeof(dhcp_offer)); + + fail_unless(netif_dhcp_data(&net_test)->state == DHCP_STATE_REQUESTING); + + fail_unless(txpacket == 2); /* No more sent */ + xid = htonl(netif_dhcp_data(&net_test)->xid); /* xid updated */ + + tcase = TEST_NONE; + dhcp_stop(&net_test); + dhcp_cleanup(&net_test); + netif_remove(&net_test); +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +dhcp_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_dhcp), + TESTFUNC(test_dhcp_nak), + TESTFUNC(test_dhcp_relayed), + TESTFUNC(test_dhcp_nak_no_endmarker), + TESTFUNC(test_dhcp_invalid_overload) + }; + return create_suite("DHCP", tests, sizeof(tests)/sizeof(testfunc), dhcp_setup, dhcp_teardown); +} diff --git a/middleware/lwip/test/unit/dhcp/test_dhcp.h b/middleware/lwip/test/unit/dhcp/test_dhcp.h new file mode 100644 index 0000000..0d88fa1 --- /dev/null +++ b/middleware/lwip/test/unit/dhcp/test_dhcp.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_DHCP_H +#define LWIP_HDR_TEST_DHCP_H + +#include "../lwip_check.h" + +Suite* dhcp_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/etharp/test_etharp.c b/middleware/lwip/test/unit/etharp/test_etharp.c new file mode 100644 index 0000000..aeaacb2 --- /dev/null +++ b/middleware/lwip/test/unit/etharp/test_etharp.c @@ -0,0 +1,273 @@ +#include "test_etharp.h" + +#include "lwip/udp.h" +#include "lwip/etharp.h" +#include "lwip/inet.h" +#include "netif/ethernet.h" +#include "lwip/stats.h" +#include "lwip/prot/iana.h" + +#if !LWIP_STATS || !UDP_STATS || !MEMP_STATS || !ETHARP_STATS +#error "This tests needs UDP-, MEMP- and ETHARP-statistics enabled" +#endif +#if !ETHARP_SUPPORT_STATIC_ENTRIES +#error "This test needs ETHARP_SUPPORT_STATIC_ENTRIES enabled" +#endif + +static struct netif test_netif; +static ip4_addr_t test_ipaddr, test_netmask, test_gw; +struct eth_addr test_ethaddr = {{1,1,1,1,1,1}}; +struct eth_addr test_ethaddr2 = {{1,1,1,1,1,2}}; +struct eth_addr test_ethaddr3 = {{1,1,1,1,1,3}}; +struct eth_addr test_ethaddr4 = {{1,1,1,1,1,4}}; +static int linkoutput_ctr; + +/* Helper functions */ +static void +etharp_remove_all(void) +{ + int i; + /* call etharp_tmr often enough to have all entries cleaned */ + for(i = 0; i < 0xff; i++) { + etharp_tmr(); + } +} + +static err_t +default_netif_linkoutput(struct netif *netif, struct pbuf *p) +{ + fail_unless(netif == &test_netif); + fail_unless(p != NULL); + linkoutput_ctr++; + return ERR_OK; +} + +static err_t +default_netif_init(struct netif *netif) +{ + fail_unless(netif != NULL); + netif->linkoutput = default_netif_linkoutput; + netif->output = etharp_output; + netif->mtu = 1500; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP; + netif->hwaddr_len = ETHARP_HWADDR_LEN; + return ERR_OK; +} + +static void +default_netif_add(void) +{ + IP4_ADDR(&test_gw, 192,168,0,1); + IP4_ADDR(&test_ipaddr, 192,168,0,1); + IP4_ADDR(&test_netmask, 255,255,0,0); + + fail_unless(netif_default == NULL); + netif_set_default(netif_add(&test_netif, &test_ipaddr, &test_netmask, + &test_gw, NULL, default_netif_init, NULL)); + netif_set_up(&test_netif); +} + +static void +default_netif_remove(void) +{ + fail_unless(netif_default == &test_netif); + netif_remove(&test_netif); +} + +static void +create_arp_response(ip4_addr_t *adr) +{ + int k; + struct eth_hdr *ethhdr; + struct etharp_hdr *etharphdr; + struct pbuf *p = pbuf_alloc(PBUF_RAW, sizeof(struct eth_hdr) + sizeof(struct etharp_hdr), PBUF_RAM); + if(p == NULL) { + FAIL_RET(); + } + ethhdr = (struct eth_hdr*)p->payload; + etharphdr = (struct etharp_hdr*)(ethhdr + 1); + + ethhdr->dest = test_ethaddr; + ethhdr->src = test_ethaddr2; + ethhdr->type = htons(ETHTYPE_ARP); + + etharphdr->hwtype = htons(LWIP_IANA_HWTYPE_ETHERNET); + etharphdr->proto = htons(ETHTYPE_IP); + etharphdr->hwlen = ETHARP_HWADDR_LEN; + etharphdr->protolen = sizeof(ip4_addr_t); + etharphdr->opcode = htons(ARP_REPLY); + + SMEMCPY(ðarphdr->sipaddr, adr, sizeof(ip4_addr_t)); + SMEMCPY(ðarphdr->dipaddr, &test_ipaddr, sizeof(ip4_addr_t)); + + k = 6; + while(k > 0) { + k--; + /* Write the ARP MAC-Addresses */ + etharphdr->shwaddr.addr[k] = test_ethaddr2.addr[k]; + etharphdr->dhwaddr.addr[k] = test_ethaddr.addr[k]; + /* Write the Ethernet MAC-Addresses */ + ethhdr->dest.addr[k] = test_ethaddr.addr[k]; + ethhdr->src.addr[k] = test_ethaddr2.addr[k]; + } + + ethernet_input(p, &test_netif); +} + +/* Setups/teardown functions */ + +static void +etharp_setup(void) +{ + etharp_remove_all(); + default_netif_add(); + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +etharp_teardown(void) +{ + etharp_remove_all(); + default_netif_remove(); + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + + +/* Test functions */ + +START_TEST(test_etharp_table) +{ +#if ETHARP_SUPPORT_STATIC_ENTRIES + err_t err; +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ + ssize_t idx; + const ip4_addr_t *unused_ipaddr; + struct eth_addr *unused_ethaddr; + struct udp_pcb* pcb; + LWIP_UNUSED_ARG(_i); + + if (netif_default != &test_netif) { + fail("This test needs a default netif"); + } + + linkoutput_ctr = 0; + + pcb = udp_new(); + fail_unless(pcb != NULL); + if (pcb != NULL) { + ip4_addr_t adrs[ARP_TABLE_SIZE + 2]; + int i; + for(i = 0; i < ARP_TABLE_SIZE + 2; i++) { + IP4_ADDR(&adrs[i], 192,168,0,i+2); + } + /* fill ARP-table with dynamic entries */ + for(i = 0; i < ARP_TABLE_SIZE; i++) { + struct pbuf *p = pbuf_alloc(PBUF_TRANSPORT, 10, PBUF_RAM); + fail_unless(p != NULL); + if (p != NULL) { + err_t err2; + ip_addr_t dst; + ip_addr_copy_from_ip4(dst, adrs[i]); + err2 = udp_sendto(pcb, p, &dst, 123); + fail_unless(err2 == ERR_OK); + /* etharp request sent? */ + fail_unless(linkoutput_ctr == (2*i) + 1); + pbuf_free(p); + + /* create an ARP response */ + create_arp_response(&adrs[i]); + /* queued UDP packet sent? */ + fail_unless(linkoutput_ctr == (2*i) + 2); + + idx = etharp_find_addr(NULL, &adrs[i], &unused_ethaddr, &unused_ipaddr); + fail_unless(idx == i); + etharp_tmr(); + } + } + linkoutput_ctr = 0; +#if ETHARP_SUPPORT_STATIC_ENTRIES + /* create one static entry */ + err = etharp_add_static_entry(&adrs[ARP_TABLE_SIZE], &test_ethaddr3); + fail_unless(err == ERR_OK); + idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE], &unused_ethaddr, &unused_ipaddr); + fail_unless(idx == 0); + fail_unless(linkoutput_ctr == 0); +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ + + linkoutput_ctr = 0; + /* fill ARP-table with dynamic entries */ + for(i = 0; i < ARP_TABLE_SIZE; i++) { + struct pbuf *p = pbuf_alloc(PBUF_TRANSPORT, 10, PBUF_RAM); + fail_unless(p != NULL); + if (p != NULL) { + err_t err2; + ip_addr_t dst; + ip_addr_copy_from_ip4(dst, adrs[i]); + err2 = udp_sendto(pcb, p, &dst, 123); + fail_unless(err2 == ERR_OK); + /* etharp request sent? */ + fail_unless(linkoutput_ctr == (2*i) + 1); + pbuf_free(p); + + /* create an ARP response */ + create_arp_response(&adrs[i]); + /* queued UDP packet sent? */ + fail_unless(linkoutput_ctr == (2*i) + 2); + + idx = etharp_find_addr(NULL, &adrs[i], &unused_ethaddr, &unused_ipaddr); + if (i < ARP_TABLE_SIZE - 1) { + fail_unless(idx == i+1); + } else { + /* the last entry must not overwrite the static entry! */ + fail_unless(idx == 1); + } + etharp_tmr(); + } + } +#if ETHARP_SUPPORT_STATIC_ENTRIES + /* create a second static entry */ + err = etharp_add_static_entry(&adrs[ARP_TABLE_SIZE+1], &test_ethaddr4); + fail_unless(err == ERR_OK); + idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE], &unused_ethaddr, &unused_ipaddr); + fail_unless(idx == 0); + idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE+1], &unused_ethaddr, &unused_ipaddr); + fail_unless(idx == 2); + /* and remove it again */ + err = etharp_remove_static_entry(&adrs[ARP_TABLE_SIZE+1]); + fail_unless(err == ERR_OK); + idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE], &unused_ethaddr, &unused_ipaddr); + fail_unless(idx == 0); + idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE+1], &unused_ethaddr, &unused_ipaddr); + fail_unless(idx == -1); +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ + + /* check that static entries don't time out */ + etharp_remove_all(); + idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE], &unused_ethaddr, &unused_ipaddr); + fail_unless(idx == 0); + +#if ETHARP_SUPPORT_STATIC_ENTRIES + /* remove the first static entry */ + err = etharp_remove_static_entry(&adrs[ARP_TABLE_SIZE]); + fail_unless(err == ERR_OK); + idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE], &unused_ethaddr, &unused_ipaddr); + fail_unless(idx == -1); + idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE+1], &unused_ethaddr, &unused_ipaddr); + fail_unless(idx == -1); +#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ + + udp_remove(pcb); + } +} +END_TEST + + +/** Create the suite including all tests for this module */ +Suite * +etharp_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_etharp_table) + }; + return create_suite("ETHARP", tests, sizeof(tests)/sizeof(testfunc), etharp_setup, etharp_teardown); +} diff --git a/middleware/lwip/test/unit/etharp/test_etharp.h b/middleware/lwip/test/unit/etharp/test_etharp.h new file mode 100644 index 0000000..2dd772d --- /dev/null +++ b/middleware/lwip/test/unit/etharp/test_etharp.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_ETHARP_H +#define LWIP_HDR_TEST_ETHARP_H + +#include "../lwip_check.h" + +Suite* etharp_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/ip4/test_ip4.c b/middleware/lwip/test/unit/ip4/test_ip4.c new file mode 100644 index 0000000..4248bf9 --- /dev/null +++ b/middleware/lwip/test/unit/ip4/test_ip4.c @@ -0,0 +1,278 @@ +#include "test_ip4.h" + +#include "lwip/ip4.h" +#include "lwip/etharp.h" +#include "lwip/inet_chksum.h" +#include "lwip/stats.h" +#include "lwip/prot/ip.h" +#include "lwip/prot/ip4.h" + +#include "lwip/tcpip.h" + +#if !LWIP_IPV4 || !IP_REASSEMBLY || !MIB2_STATS || !IPFRAG_STATS +#error "This tests needs LWIP_IPV4, IP_REASSEMBLY; MIB2- and IPFRAG-statistics enabled" +#endif + +static struct netif test_netif; +static ip4_addr_t test_ipaddr, test_netmask, test_gw; +static int linkoutput_ctr; +static int linkoutput_byte_ctr; + +/* reference internal lwip variable in netif.c */ + +static err_t +test_netif_linkoutput(struct netif *netif, struct pbuf *p) +{ + fail_unless(netif == &test_netif); + fail_unless(p != NULL); + linkoutput_ctr++; + linkoutput_byte_ctr += p->tot_len; + return ERR_OK; +} + +static err_t +test_netif_init(struct netif *netif) +{ + fail_unless(netif != NULL); + netif->linkoutput = test_netif_linkoutput; + netif->output = etharp_output; + netif->mtu = 1500; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP; + netif->hwaddr_len = ETHARP_HWADDR_LEN; + return ERR_OK; +} + +static void +test_netif_add(void) +{ + IP4_ADDR(&test_gw, 192,168,0,1); + IP4_ADDR(&test_ipaddr, 192,168,0,1); + IP4_ADDR(&test_netmask, 255,255,0,0); + + fail_unless(netif_default == NULL); + netif_add(&test_netif, &test_ipaddr, &test_netmask, &test_gw, + NULL, test_netif_init, NULL); + netif_set_default(&test_netif); + netif_set_up(&test_netif); +} + +static void +test_netif_remove(void) +{ + if (netif_default == &test_netif) { + netif_remove(&test_netif); + } +} + +/* Helper functions */ +static void +create_ip4_input_fragment(u16_t ip_id, u16_t start, u16_t len, int last) +{ + struct pbuf *p; + struct netif *input_netif = netif_list; /* just use any netif */ + fail_unless((start & 7) == 0); + fail_unless(((len & 7) == 0) || last); + fail_unless(input_netif != NULL); + + p = pbuf_alloc(PBUF_RAW, len + sizeof(struct ip_hdr), PBUF_RAM); + fail_unless(p != NULL); + if (p != NULL) { + err_t err; + struct ip_hdr *iphdr = (struct ip_hdr *)p->payload; + IPH_VHL_SET(iphdr, 4, sizeof(struct ip_hdr) / 4); + IPH_TOS_SET(iphdr, 0); + IPH_LEN_SET(iphdr, lwip_htons(p->tot_len)); + IPH_ID_SET(iphdr, lwip_htons(ip_id)); + if (last) { + IPH_OFFSET_SET(iphdr, lwip_htons(start / 8)); + } else { + IPH_OFFSET_SET(iphdr, lwip_htons((start / 8) | IP_MF)); + } + IPH_TTL_SET(iphdr, 5); + IPH_PROTO_SET(iphdr, IP_PROTO_UDP); + IPH_CHKSUM_SET(iphdr, 0); + ip4_addr_copy(iphdr->src, *netif_ip4_addr(input_netif)); + iphdr->src.addr = lwip_htonl(lwip_htonl(iphdr->src.addr) + 1); + ip4_addr_copy(iphdr->dest, *netif_ip4_addr(input_netif)); + IPH_CHKSUM_SET(iphdr, inet_chksum(iphdr, sizeof(struct ip_hdr))); + + err = ip4_input(p, input_netif); + if (err != ERR_OK) { + pbuf_free(p); + } + fail_unless(err == ERR_OK); + } +} + +static err_t arpless_output(struct netif *netif, struct pbuf *p, + const ip4_addr_t *ipaddr) { + LWIP_UNUSED_ARG(ipaddr); + return netif->linkoutput(netif, p); +} + +/* Setups/teardown functions */ + +static void +ip4_setup(void) +{ + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +ip4_teardown(void) +{ + if (netif_list->loop_first != NULL) { + pbuf_free(netif_list->loop_first); + netif_list->loop_first = NULL; + } + netif_list->loop_last = NULL; + /* poll until all memory is released... */ + tcpip_thread_poll_one(); + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); + test_netif_remove(); + netif_set_up(netif_get_loopif()); +} + +/* Test functions */ +START_TEST(test_ip4_frag) +{ + struct pbuf *data = pbuf_alloc(PBUF_IP, 8000, PBUF_RAM); + ip_addr_t peer_ip = IPADDR4_INIT_BYTES(192,168,0,5); + err_t err; + LWIP_UNUSED_ARG(_i); + + /* Verify that 8000 byte payload is split into six packets */ + fail_unless(data != NULL); + test_netif_add(); + test_netif.output = arpless_output; + err = ip4_output_if_src(data, &test_ipaddr, ip_2_ip4(&peer_ip), + 16, 0, IP_PROTO_UDP, &test_netif); + fail_unless(err == ERR_OK); + fail_unless(linkoutput_ctr == 6); + fail_unless(linkoutput_byte_ctr == (8000 + (6 * IP_HLEN))); + pbuf_free(data); + test_netif_remove(); +} +END_TEST + +START_TEST(test_ip4_reass) +{ + const u16_t ip_id = 128; + LWIP_UNUSED_ARG(_i); + + memset(&lwip_stats.mib2, 0, sizeof(lwip_stats.mib2)); + + create_ip4_input_fragment(ip_id, 8*200, 200, 1); + fail_unless(lwip_stats.ip_frag.recv == 1); + fail_unless(lwip_stats.ip_frag.err == 0); + fail_unless(lwip_stats.ip_frag.memerr == 0); + fail_unless(lwip_stats.ip_frag.drop == 0); + fail_unless(lwip_stats.mib2.ipreasmoks == 0); + + create_ip4_input_fragment(ip_id, 0*200, 200, 0); + fail_unless(lwip_stats.ip_frag.recv == 2); + fail_unless(lwip_stats.ip_frag.err == 0); + fail_unless(lwip_stats.ip_frag.memerr == 0); + fail_unless(lwip_stats.ip_frag.drop == 0); + fail_unless(lwip_stats.mib2.ipreasmoks == 0); + + create_ip4_input_fragment(ip_id, 1*200, 200, 0); + fail_unless(lwip_stats.ip_frag.recv == 3); + fail_unless(lwip_stats.ip_frag.err == 0); + fail_unless(lwip_stats.ip_frag.memerr == 0); + fail_unless(lwip_stats.ip_frag.drop == 0); + fail_unless(lwip_stats.mib2.ipreasmoks == 0); + + create_ip4_input_fragment(ip_id, 2*200, 200, 0); + fail_unless(lwip_stats.ip_frag.recv == 4); + fail_unless(lwip_stats.ip_frag.err == 0); + fail_unless(lwip_stats.ip_frag.memerr == 0); + fail_unless(lwip_stats.ip_frag.drop == 0); + fail_unless(lwip_stats.mib2.ipreasmoks == 0); + + create_ip4_input_fragment(ip_id, 3*200, 200, 0); + fail_unless(lwip_stats.ip_frag.recv == 5); + fail_unless(lwip_stats.ip_frag.err == 0); + fail_unless(lwip_stats.ip_frag.memerr == 0); + fail_unless(lwip_stats.ip_frag.drop == 0); + fail_unless(lwip_stats.mib2.ipreasmoks == 0); + + create_ip4_input_fragment(ip_id, 4*200, 200, 0); + fail_unless(lwip_stats.ip_frag.recv == 6); + fail_unless(lwip_stats.ip_frag.err == 0); + fail_unless(lwip_stats.ip_frag.memerr == 0); + fail_unless(lwip_stats.ip_frag.drop == 0); + fail_unless(lwip_stats.mib2.ipreasmoks == 0); + + create_ip4_input_fragment(ip_id, 7*200, 200, 0); + fail_unless(lwip_stats.ip_frag.recv == 7); + fail_unless(lwip_stats.ip_frag.err == 0); + fail_unless(lwip_stats.ip_frag.memerr == 0); + fail_unless(lwip_stats.ip_frag.drop == 0); + fail_unless(lwip_stats.mib2.ipreasmoks == 0); + + create_ip4_input_fragment(ip_id, 6*200, 200, 0); + fail_unless(lwip_stats.ip_frag.recv == 8); + fail_unless(lwip_stats.ip_frag.err == 0); + fail_unless(lwip_stats.ip_frag.memerr == 0); + fail_unless(lwip_stats.ip_frag.drop == 0); + fail_unless(lwip_stats.mib2.ipreasmoks == 0); + + create_ip4_input_fragment(ip_id, 5*200, 200, 0); + fail_unless(lwip_stats.ip_frag.recv == 9); + fail_unless(lwip_stats.ip_frag.err == 0); + fail_unless(lwip_stats.ip_frag.memerr == 0); + fail_unless(lwip_stats.ip_frag.drop == 0); + fail_unless(lwip_stats.mib2.ipreasmoks == 1); +} +END_TEST + +/* packets to 127.0.0.1 shall not be sent out to netif_default */ +START_TEST(test_127_0_0_1) +{ + ip4_addr_t localhost; + struct pbuf* p; + + LWIP_UNUSED_ARG(_i); + + test_netif_add(); + netif_set_down(netif_get_loopif()); + + IP4_ADDR(&localhost, 127, 0, 0, 1); + p = pbuf_alloc(PBUF_IP, 10, PBUF_POOL); + + if(ip4_output(p, netif_ip4_addr(netif_default), &localhost, 0, 0, IP_PROTO_UDP) != ERR_OK) { + pbuf_free(p); + } + fail_unless(linkoutput_ctr == 0); +} +END_TEST + +START_TEST(test_ip4addr_aton) +{ + ip4_addr_t ip_addr; + + LWIP_UNUSED_ARG(_i); + + fail_unless(ip4addr_aton("192.168.0.1", &ip_addr) == 1); + fail_unless(ip4addr_aton("192.168.0.0001", &ip_addr) == 1); + fail_unless(ip4addr_aton("192.168.0.zzz", &ip_addr) == 0); + fail_unless(ip4addr_aton("192.168.1", &ip_addr) == 1); + fail_unless(ip4addr_aton("192.168.0xd3", &ip_addr) == 1); + fail_unless(ip4addr_aton("192.168.0xz5", &ip_addr) == 0); + fail_unless(ip4addr_aton("192.168.095", &ip_addr) == 0); +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +ip4_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_ip4_frag), + TESTFUNC(test_ip4_reass), + TESTFUNC(test_127_0_0_1), + TESTFUNC(test_ip4addr_aton), + }; + return create_suite("IPv4", tests, sizeof(tests)/sizeof(testfunc), ip4_setup, ip4_teardown); +} diff --git a/middleware/lwip/test/unit/ip4/test_ip4.h b/middleware/lwip/test/unit/ip4/test_ip4.h new file mode 100644 index 0000000..df84a69 --- /dev/null +++ b/middleware/lwip/test/unit/ip4/test_ip4.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_IP4_H +#define LWIP_HDR_TEST_IP4_H + +#include "../lwip_check.h" + +Suite* ip4_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/ip6/test_ip6.c b/middleware/lwip/test/unit/ip6/test_ip6.c new file mode 100644 index 0000000..e1900af --- /dev/null +++ b/middleware/lwip/test/unit/ip6/test_ip6.c @@ -0,0 +1,463 @@ +#include "test_ip6.h" + +#include "lwip/ethip6.h" +#include "lwip/ip6.h" +#include "lwip/icmp6.h" +#include "lwip/inet_chksum.h" +#include "lwip/nd6.h" +#include "lwip/stats.h" +#include "lwip/prot/ethernet.h" +#include "lwip/prot/ip.h" +#include "lwip/prot/ip6.h" + +#include "lwip/tcpip.h" + +#if LWIP_IPV6 /* allow to build the unit tests without IPv6 support */ + +static struct netif test_netif6; +static int linkoutput_ctr; +static int linkoutput_byte_ctr; + +static err_t +default_netif_linkoutput(struct netif *netif, struct pbuf *p) +{ + fail_unless(netif == &test_netif6); + fail_unless(p != NULL); + linkoutput_ctr++; + linkoutput_byte_ctr += p->tot_len; + return ERR_OK; +} + +static err_t +default_netif_init(struct netif *netif) +{ + fail_unless(netif != NULL); + netif->linkoutput = default_netif_linkoutput; + netif->output_ip6 = ethip6_output; + netif->mtu = 1500; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHERNET | NETIF_FLAG_MLD6; + netif->hwaddr_len = ETH_HWADDR_LEN; + return ERR_OK; +} + +static void +default_netif_add(void) +{ + struct netif *n; + fail_unless(netif_default == NULL); + n = netif_add_noaddr(&test_netif6, NULL, default_netif_init, NULL); + fail_unless(n == &test_netif6); + netif_set_default(&test_netif6); +} + +static void +default_netif_remove(void) +{ + fail_unless(netif_default == &test_netif6); + netif_remove(&test_netif6); +} + +static void +ip6_test_handle_timers(int count) +{ + int i; + for (i = 0; i < count; i++) { + nd6_tmr(); + } +} + +/* Setups/teardown functions */ + +static void +ip6_setup(void) +{ + default_netif_add(); + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +ip6_teardown(void) +{ + if (netif_list->loop_first != NULL) { + pbuf_free(netif_list->loop_first); + netif_list->loop_first = NULL; + } + netif_list->loop_last = NULL; + /* poll until all memory is released... */ + tcpip_thread_poll_one(); + default_netif_remove(); + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + + +/* Test functions */ + +static void +test_ip6_ll_addr_iter(int expected_ctr1, int expected_ctr2) +{ + fail_unless(linkoutput_ctr == 0); + + /* test that nothing is sent with link uo but netif down */ + netif_set_link_up(&test_netif6); + ip6_test_handle_timers(500); + fail_unless(linkoutput_ctr == 0); + netif_set_link_down(&test_netif6); + fail_unless(linkoutput_ctr == 0); + + /* test that nothing is sent with link down but netif up */ + netif_set_up(&test_netif6); + ip6_test_handle_timers(500); + fail_unless(linkoutput_ctr == 0); + netif_set_down(&test_netif6); + fail_unless(linkoutput_ctr == 0); + + /* test what is sent with link up + netif up */ + netif_set_link_up(&test_netif6); + netif_set_up(&test_netif6); + ip6_test_handle_timers(500); + fail_unless(linkoutput_ctr == expected_ctr1); + netif_set_down(&test_netif6); + netif_set_link_down(&test_netif6); + fail_unless(linkoutput_ctr == expected_ctr1); + linkoutput_ctr = 0; + + netif_set_up(&test_netif6); + netif_set_link_up(&test_netif6); + ip6_test_handle_timers(500); + fail_unless(linkoutput_ctr == expected_ctr2); + netif_set_link_down(&test_netif6); + netif_set_down(&test_netif6); + fail_unless(linkoutput_ctr == expected_ctr2); + linkoutput_ctr = 0; +} + +START_TEST(test_ip6_ll_addr) +{ + LWIP_UNUSED_ARG(_i); + + /* test without link-local address */ + test_ip6_ll_addr_iter(0, 0); + + /* test with link-local address */ + netif_create_ip6_linklocal_address(&test_netif6, 1); + test_ip6_ll_addr_iter(3 + LWIP_IPV6_DUP_DETECT_ATTEMPTS + LWIP_IPV6_MLD, 3); +} +END_TEST + +START_TEST(test_ip6_aton_ipv4mapped) +{ + int ret; + ip_addr_t addr; + ip6_addr_t addr6; + const ip_addr_t addr_expected = IPADDR6_INIT_HOST(0, 0, 0xFFFF, 0xD4CC65D2); + const char *full_ipv6_addr = "0:0:0:0:0:FFFF:D4CC:65D2"; + const char *shortened_ipv6_addr = "::FFFF:D4CC:65D2"; + const char *full_ipv4_mapped_addr = "0:0:0:0:0:FFFF:212.204.101.210"; + const char *shortened_ipv4_mapped_addr = "::FFFF:212.204.101.210"; + const char *bogus_ipv4_mapped_addr = "::FFFF:212.204.101.2101"; + LWIP_UNUSED_ARG(_i); + + /* check IPv6 representation */ + memset(&addr6, 0, sizeof(addr6)); + ret = ip6addr_aton(full_ipv6_addr, &addr6); + fail_unless(ret == 1); + fail_unless(memcmp(&addr6, &addr_expected, 16) == 0); + memset(&addr, 0, sizeof(addr)); + ret = ipaddr_aton(full_ipv6_addr, &addr); + fail_unless(ret == 1); + fail_unless(memcmp(&addr, &addr_expected, 16) == 0); + + /* check shortened IPv6 representation */ + memset(&addr6, 0, sizeof(addr6)); + ret = ip6addr_aton(shortened_ipv6_addr, &addr6); + fail_unless(ret == 1); + fail_unless(memcmp(&addr6, &addr_expected, 16) == 0); + memset(&addr, 0, sizeof(addr)); + ret = ipaddr_aton(shortened_ipv6_addr, &addr); + fail_unless(ret == 1); + fail_unless(memcmp(&addr, &addr_expected, 16) == 0); + + /* checked shortened mixed representation */ + memset(&addr6, 0, sizeof(addr6)); + ret = ip6addr_aton(shortened_ipv4_mapped_addr, &addr6); + fail_unless(ret == 1); + fail_unless(memcmp(&addr6, &addr_expected, 16) == 0); + memset(&addr, 0, sizeof(addr)); + ret = ipaddr_aton(shortened_ipv4_mapped_addr, &addr); + fail_unless(ret == 1); + fail_unless(memcmp(&addr, &addr_expected, 16) == 0); + + /* checked mixed representation */ + memset(&addr6, 0, sizeof(addr6)); + ret = ip6addr_aton(full_ipv4_mapped_addr, &addr6); + fail_unless(ret == 1); + fail_unless(memcmp(&addr6, &addr_expected, 16) == 0); + memset(&addr, 0, sizeof(addr)); + ret = ipaddr_aton(full_ipv4_mapped_addr, &addr); + fail_unless(ret == 1); + fail_unless(memcmp(&addr, &addr_expected, 16) == 0); + + /* checked bogus mixed representation */ + memset(&addr6, 0, sizeof(addr6)); + ret = ip6addr_aton(bogus_ipv4_mapped_addr, &addr6); + fail_unless(ret == 0); + memset(&addr, 0, sizeof(addr)); + ret = ipaddr_aton(bogus_ipv4_mapped_addr, &addr); + fail_unless(ret == 0); +} +END_TEST + +START_TEST(test_ip6_ntoa_ipv4mapped) +{ + const ip_addr_t addr = IPADDR6_INIT_HOST(0, 0, 0xFFFF, 0xD4CC65D2); + char buf[128]; + char *str; + LWIP_UNUSED_ARG(_i); + + str = ip6addr_ntoa_r(ip_2_ip6(&addr), buf, sizeof(buf)); + fail_unless(str == buf); + fail_unless(!strcmp(str, "::FFFF:212.204.101.210")); +} +END_TEST + +struct test_addr_and_str { + ip_addr_t addr; + const char *str; +}; + +START_TEST(test_ip6_ntoa) +{ + struct test_addr_and_str tests[] = { + {IPADDR6_INIT_HOST(0xfe800000, 0x00000000, 0xb2a1a2ff, 0xfea3a4a5), "FE80::B2A1:A2FF:FEA3:A4A5"}, /* test shortened zeros */ + {IPADDR6_INIT_HOST(0xfe800000, 0xff000000, 0xb2a1a2ff, 0xfea3a4a5), "FE80:0:FF00:0:B2A1:A2FF:FEA3:A4A5"}, /* don't omit single zero blocks */ + {IPADDR6_INIT_HOST(0xfe800000, 0xff000000, 0xb2000000, 0x0000a4a5), "FE80:0:FF00:0:B200::A4A5"}, /* omit longest zero block */ + }; + char buf[128]; + char *str; + size_t i; + LWIP_UNUSED_ARG(_i); + + for (i = 0; i < LWIP_ARRAYSIZE(tests); i++) { + str = ip6addr_ntoa_r(ip_2_ip6(&tests[i].addr), buf, sizeof(buf)); + fail_unless(str == buf); + fail_unless(!strcmp(str, tests[i].str)); + } +} +END_TEST + +START_TEST(test_ip6_lladdr) +{ + u8_t zeros[128]; + const u8_t test_mac_addr[6] = {0xb0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5}; + const u32_t expected_ip6_addr_1[4] = {PP_HTONL(0xfe800000), 0, PP_HTONL(0xb2a1a2ff), PP_HTONL(0xfea3a4a5)}; + const u32_t expected_ip6_addr_2[4] = {PP_HTONL(0xfe800000), 0, PP_HTONL(0x0000b0a1), PP_HTONL(0xa2a3a4a5)}; + LWIP_UNUSED_ARG(_i); + memset(zeros, 0, sizeof(zeros)); + + fail_unless(test_netif6.hwaddr_len == 6); + fail_unless(!memcmp(test_netif6.hwaddr, zeros, 6)); + + fail_unless(test_netif6.ip6_addr_state[0] == 0); + fail_unless(!memcmp(netif_ip6_addr(&test_netif6, 0), zeros, sizeof(ip6_addr_t))); + + /* set specific mac addr */ + memcpy(test_netif6.hwaddr, test_mac_addr, 6); + + /* create link-local addr based on mac (EUI-48) */ + netif_create_ip6_linklocal_address(&test_netif6, 1); + fail_unless(IP_IS_V6(&test_netif6.ip6_addr[0])); + fail_unless(!memcmp(&netif_ip6_addr(&test_netif6, 0)->addr, expected_ip6_addr_1, 16)); +#if LWIP_IPV6_SCOPES + fail_unless(netif_ip6_addr(&test_netif6, 0)->zone == (test_netif6.num + 1)); +#endif + /* reset address */ + memset(&test_netif6.ip6_addr[0], 0, sizeof(ip6_addr_t)); + test_netif6.ip6_addr_state[0] = 0; + + /* create link-local addr based interface ID */ + netif_create_ip6_linklocal_address(&test_netif6, 0); + fail_unless(IP_IS_V6(&test_netif6.ip6_addr[0])); + fail_unless(!memcmp(&netif_ip6_addr(&test_netif6, 0)->addr, expected_ip6_addr_2, 16)); +#if LWIP_IPV6_SCOPES + fail_unless(netif_ip6_addr(&test_netif6, 0)->zone == (test_netif6.num + 1)); +#endif + /* reset address */ + memset(&test_netif6.ip6_addr[0], 0, sizeof(ip6_addr_t)); + test_netif6.ip6_addr_state[0] = 0; + + /* reset mac address */ + memset(&test_netif6.hwaddr, 0, sizeof(test_netif6.hwaddr)); +} +END_TEST + +static struct pbuf *cloned_pbuf = NULL; +static err_t clone_output(struct netif *netif, struct pbuf *p, const ip6_addr_t *addr) { + LWIP_UNUSED_ARG(netif); + LWIP_UNUSED_ARG(addr); + cloned_pbuf = pbuf_clone(PBUF_RAW, PBUF_RAM, p); + return ERR_OK; +} + +/* Reproduces bug #58553 */ +START_TEST(test_ip6_dest_unreachable_chained_pbuf) +{ + + ip_addr_t my_addr = IPADDR6_INIT_HOST(0x20010db8, 0x0, 0x0, 0x1); + ip_addr_t peer_addr = IPADDR6_INIT_HOST(0x20010db8, 0x0, 0x0, 0x4); + /* Create chained pbuf with UDP data that will get destination unreachable */ + u8_t udp_hdr[] = { + 0x60, 0x00, 0x27, 0x03, 0x00, 0x2d, 0x11, 0x40, + 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, + 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, + 0x01, 0xff, 0x03, 0xff, 0x00, 0x2d, 0x00, 0x00, + }; + struct pbuf *header = pbuf_alloc(PBUF_RAW, sizeof(udp_hdr), PBUF_ROM); + u8_t udp_payload[] = "abcdefghijklmnopqrstuvwxyz0123456789"; + struct pbuf *data = pbuf_alloc(PBUF_RAW, sizeof(udp_payload), PBUF_ROM); + u8_t *icmpptr; + struct ip6_hdr *outhdr; + struct icmp6_hdr *icmp6hdr; + fail_unless(header); + header->payload = udp_hdr; + fail_unless(data); + data->payload = udp_payload; + pbuf_cat(header, data); + data = NULL; + + /* Configure and enable local address */ + netif_set_up(&test_netif6); + netif_ip6_addr_set(&test_netif6, 0, ip_2_ip6(&my_addr)); + netif_ip6_addr_set_state(&test_netif6, 0, IP6_ADDR_VALID); + test_netif6.output_ip6 = clone_output; + + /* Process packet and send ICMPv6 reply for unreachable UDP port */ + ip6_input(header, &test_netif6); + header = NULL; + + /* Verify ICMP reply packet contents */ + fail_unless(cloned_pbuf); + fail_unless(cloned_pbuf->len == IP6_HLEN + ICMP6_HLEN + sizeof(udp_hdr) + sizeof(udp_payload)); + outhdr = (struct ip6_hdr*) cloned_pbuf->payload; + fail_unless(ip6_addr_packed_eq(ip_2_ip6(&my_addr), &outhdr->src, IP6_NO_ZONE)); + fail_unless(ip6_addr_packed_eq(ip_2_ip6(&peer_addr), &outhdr->dest, IP6_NO_ZONE)); + icmpptr = &((u8_t*)cloned_pbuf->payload)[IP6_HLEN]; + icmp6hdr = (struct icmp6_hdr*) icmpptr; + fail_unless(icmp6hdr->type == ICMP6_TYPE_DUR); + fail_unless(icmp6hdr->code == ICMP6_DUR_PORT); + fail_unless(icmp6hdr->data == lwip_htonl(0)); + icmpptr += ICMP6_HLEN; + fail_unless(memcmp(icmpptr, udp_hdr, sizeof(udp_hdr)) == 0, "mismatch in copied ip6/udp header"); + icmpptr += sizeof(udp_hdr); + fail_unless(memcmp(icmpptr, udp_payload, sizeof(udp_payload)) == 0, "mismatch in copied udp payload"); + pbuf_free(cloned_pbuf); +} +END_TEST + +/* Reproduces bug #57374 */ +START_TEST(test_ip6_frag_pbuf_len_assert) +{ + ip_addr_t my_addr = IPADDR6_INIT_HOST(0x20010db8, 0x0, 0x0, 0x1); + ip_addr_t peer_addr = IPADDR6_INIT_HOST(0x20010db8, 0x0, 0x0, 0x4); + struct pbuf *payload, *hdr; + err_t err; + int i; + + /* Configure and enable local address */ + test_netif6.mtu = 1500; + netif_set_up(&test_netif6); + netif_ip6_addr_set(&test_netif6, 0, ip_2_ip6(&my_addr)); + netif_ip6_addr_set_state(&test_netif6, 0, IP6_ADDR_VALID); + + /* Create packet with lots of small pbufs around mtu limit */ + payload = pbuf_alloc(PBUF_RAW, 1400, PBUF_POOL); + fail_unless(payload != NULL); + for (i = 0; i < 16; i++) { + struct pbuf *p = pbuf_alloc(PBUF_RAW, 32, PBUF_RAM); + fail_unless(p != NULL); + pbuf_cat(payload, p); + } + /* Prefix with header like UDP would */ + hdr = pbuf_alloc(PBUF_IP, 8, PBUF_RAM); + fail_unless(hdr != NULL); + pbuf_chain(hdr, payload); + + /* Send it and don't crash while fragmenting */ + err = ip6_output_if_src(hdr, ip_2_ip6(&my_addr), ip_2_ip6(&peer_addr), 15, 0, IP_PROTO_UDP, &test_netif6); + fail_unless(err == ERR_OK); + + pbuf_free(hdr); + pbuf_free(payload); +} +END_TEST + +static err_t direct_output(struct netif *netif, struct pbuf *p, const ip6_addr_t *addr) { + LWIP_UNUSED_ARG(addr); + return netif->linkoutput(netif, p); +} + +START_TEST(test_ip6_frag) +{ + ip_addr_t my_addr = IPADDR6_INIT_HOST(0x20010db8, 0x0, 0x0, 0x1); + ip_addr_t peer_addr = IPADDR6_INIT_HOST(0x20010db8, 0x0, 0x0, 0x4); + struct pbuf *data; + err_t err; + + /* Configure and enable local address */ + test_netif6.mtu = 1500; + netif_set_up(&test_netif6); + netif_ip6_addr_set(&test_netif6, 0, ip_2_ip6(&my_addr)); + netif_ip6_addr_set_state(&test_netif6, 0, IP6_ADDR_VALID); + test_netif6.output_ip6 = direct_output; + /* Reset counters after multicast traffic */ + linkoutput_ctr = 0; + linkoutput_byte_ctr = 0; + + /* Verify that 8000 byte payload is split into six packets */ + data = pbuf_alloc(PBUF_IP, 8000, PBUF_RAM); + fail_unless(data != NULL); + err = ip6_output_if_src(data, ip_2_ip6(&my_addr), ip_2_ip6(&peer_addr), + 15, 0, IP_PROTO_UDP, &test_netif6); + fail_unless(err == ERR_OK); + fail_unless(linkoutput_ctr == 6); + fail_unless(linkoutput_byte_ctr == (8000 + (6 * (IP6_HLEN + IP6_FRAG_HLEN)))); + pbuf_free(data); +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +ip6_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_ip6_ll_addr), + TESTFUNC(test_ip6_aton_ipv4mapped), + TESTFUNC(test_ip6_ntoa_ipv4mapped), + TESTFUNC(test_ip6_ntoa), + TESTFUNC(test_ip6_lladdr), + TESTFUNC(test_ip6_dest_unreachable_chained_pbuf), + TESTFUNC(test_ip6_frag_pbuf_len_assert), + TESTFUNC(test_ip6_frag) + }; + return create_suite("IPv6", tests, sizeof(tests)/sizeof(testfunc), ip6_setup, ip6_teardown); +} + +#else /* LWIP_IPV6 */ + +/* allow to build the unit tests without IPv6 support */ +START_TEST(test_ip6_dummy) +{ + LWIP_UNUSED_ARG(_i); +} +END_TEST + +Suite * +ip6_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_ip6_dummy), + }; + return create_suite("IPv6", tests, sizeof(tests)/sizeof(testfunc), NULL, NULL); +} +#endif /* LWIP_IPV6 */ diff --git a/middleware/lwip/test/unit/ip6/test_ip6.h b/middleware/lwip/test/unit/ip6/test_ip6.h new file mode 100644 index 0000000..a09345b --- /dev/null +++ b/middleware/lwip/test/unit/ip6/test_ip6.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_IP6_H +#define LWIP_HDR_TEST_IP6_H + +#include "../lwip_check.h" + +Suite* ip6_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/lwip_check.h b/middleware/lwip/test/unit/lwip_check.h new file mode 100644 index 0000000..0246c59 --- /dev/null +++ b/middleware/lwip/test/unit/lwip_check.h @@ -0,0 +1,52 @@ +#ifndef LWIP_HDR_LWIP_CHECK_H +#define LWIP_HDR_LWIP_CHECK_H + +/* Common header file for lwIP unit tests using the check framework */ + +#include +#include +#include + +#define FAIL_RET() do { fail(); return; } while(0) +#define EXPECT(x) fail_unless(x) +#define EXPECT_RET(x) do { fail_unless(x); if(!(x)) { return; }} while(0) +#define EXPECT_RETX(x, y) do { fail_unless(x); if(!(x)) { return y; }} while(0) +#define EXPECT_RETNULL(x) EXPECT_RETX(x, NULL) + +#if (CHECK_MAJOR_VERSION == 0 && CHECK_MINOR_VERSION < 13) +typedef struct { + TFun func; + const char *name; +} testfunc; + +#define TESTFUNC(x) {(x), "" # x "" } + +/* Modified function from check.h, supplying function name */ +#define tcase_add_named_test(tc,tf) \ + _tcase_add_test((tc),(tf).func,(tf).name,0, 0, 0, 1) + +#else +/* From 0.13.0 check keeps track of the method name internally */ +typedef const TTest * testfunc; + +#define TESTFUNC(x) x + +#define tcase_add_named_test(tc,tf) tcase_add_test(tc,tf) +#endif + +/** typedef for a function returning a test suite */ +typedef Suite* (suite_getter_fn)(void); + +/** Create a test suite */ +Suite* create_suite(const char* name, testfunc *tests, size_t num_tests, SFun setup, SFun teardown); + +#ifdef LWIP_UNITTESTS_LIB +int lwip_unittests_run(void) +#endif + +/* helper functions */ +#define SKIP_POOL(x) (1 << x) +#define SKIP_HEAP (1 << MEMP_MAX) +void lwip_check_ensure_no_alloc(unsigned int skip); + +#endif /* LWIP_HDR_LWIP_CHECK_H */ diff --git a/middleware/lwip/test/unit/lwip_unittests.c b/middleware/lwip/test/unit/lwip_unittests.c new file mode 100644 index 0000000..a705546 --- /dev/null +++ b/middleware/lwip/test/unit/lwip_unittests.c @@ -0,0 +1,119 @@ +#include "lwip_check.h" + +#include "ip4/test_ip4.h" +#include "ip6/test_ip6.h" +#include "udp/test_udp.h" +#include "tcp/test_tcp.h" +#include "tcp/test_tcp_oos.h" +#include "core/test_def.h" +#include "core/test_dns.h" +#include "core/test_mem.h" +#include "core/test_netif.h" +#include "core/test_pbuf.h" +#include "core/test_timers.h" +#include "etharp/test_etharp.h" +#include "dhcp/test_dhcp.h" +#include "mdns/test_mdns.h" +#include "mqtt/test_mqtt.h" +#include "api/test_sockets.h" + +#include "lwip/init.h" +#if !NO_SYS +#include "lwip/tcpip.h" +#endif + +/* This function is used for LWIP_RAND by some ports... */ +unsigned int +lwip_port_rand(void) +{ + return rand(); +} + +Suite* create_suite(const char* name, testfunc *tests, size_t num_tests, SFun setup, SFun teardown) +{ + size_t i; + Suite *s = suite_create(name); + + for(i = 0; i < num_tests; i++) { + TCase *tc_core = tcase_create(name); + if ((setup != NULL) || (teardown != NULL)) { + tcase_add_checked_fixture(tc_core, setup, teardown); + } + tcase_add_named_test(tc_core, tests[i]); + suite_add_tcase(s, tc_core); + } + return s; +} + +void lwip_check_ensure_no_alloc(unsigned int skip) +{ + int i; + unsigned int mask; + + if (!(skip & SKIP_HEAP)) { + fail_unless(lwip_stats.mem.used == 0, + "mem heap still has %d bytes allocated", lwip_stats.mem.used); + } + for (i = 0, mask = 1; i < MEMP_MAX; i++, mask <<= 1) { + if (!(skip & mask)) { + fail_unless(lwip_stats.memp[i]->used == 0, + "memp pool '%s' still has %d entries allocated", + lwip_stats.memp[i]->name, lwip_stats.memp[i]->used); + } + } +} + +#ifdef LWIP_UNITTESTS_LIB +int lwip_unittests_run(void) +#else +int main(void) +#endif +{ + int number_failed; + SRunner *sr; + size_t i; + suite_getter_fn* suites[] = { + ip4_suite, + ip6_suite, + udp_suite, + tcp_suite, + tcp_oos_suite, + def_suite, + dns_suite, + mem_suite, + netif_suite, + pbuf_suite, + timers_suite, + etharp_suite, + dhcp_suite, + mdns_suite, + mqtt_suite, + sockets_suite + }; + size_t num = sizeof(suites)/sizeof(void*); + LWIP_ASSERT("No suites defined", num > 0); + +#if NO_SYS + lwip_init(); +#else + tcpip_init(NULL, NULL); +#endif + + sr = srunner_create((suites[0])()); + srunner_set_xml(sr, "lwip_unittests.xml"); + for(i = 1; i < num; i++) { + srunner_add_suite(sr, ((suite_getter_fn*)suites[i])()); + } + +#ifdef LWIP_UNITTESTS_NOFORK + srunner_set_fork_status(sr, CK_NOFORK); +#endif +#ifdef LWIP_UNITTESTS_FORK + srunner_set_fork_status(sr, CK_FORK); +#endif + + srunner_run_all(sr, CK_NORMAL); + number_failed = srunner_ntests_failed(sr); + srunner_free(sr); + return (number_failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE; +} diff --git a/middleware/lwip/test/unit/lwipopts.h b/middleware/lwip/test/unit/lwipopts.h new file mode 100644 index 0000000..09175c4 --- /dev/null +++ b/middleware/lwip/test/unit/lwipopts.h @@ -0,0 +1,90 @@ +/* + * Copyright (c) 2001-2003 Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Simon Goldschmidt + * + */ +#ifndef LWIP_HDR_LWIPOPTS_H +#define LWIP_HDR_LWIPOPTS_H + +#define LWIP_TESTMODE 1 + +#define LWIP_IPV6 1 + +#define LWIP_CHECKSUM_ON_COPY 1 +#define TCP_CHECKSUM_ON_COPY_SANITY_CHECK 1 +#define TCP_CHECKSUM_ON_COPY_SANITY_CHECK_FAIL(printfmsg) LWIP_ASSERT("TCP_CHECKSUM_ON_COPY_SANITY_CHECK_FAIL", 0) + +/* We link to special sys_arch.c (for basic non-waiting API layers unit tests) */ +#define NO_SYS 0 +#define SYS_LIGHTWEIGHT_PROT 0 +#define LWIP_NETCONN !NO_SYS +#define LWIP_SOCKET !NO_SYS +#define LWIP_NETCONN_FULLDUPLEX LWIP_SOCKET +#define LWIP_NETCONN_SEM_PER_THREAD 1 +#define LWIP_NETBUF_RECVINFO 1 +#define LWIP_HAVE_LOOPIF 1 +#define TCPIP_THREAD_TEST + +/* Enable DHCP to test it */ +#define LWIP_DHCP 1 + +/* Enable DNS, with random source port to avoid alloc in dns_init */ +#define LWIP_DNS 1 +#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_RAND_SRC_PORT) + +/* Minimal changes to opt.h required for tcp unit tests: */ +#define MEM_SIZE 16000 +#define TCP_SND_QUEUELEN 40 +#define MEMP_NUM_TCP_SEG TCP_SND_QUEUELEN +#define TCP_SND_BUF (12 * TCP_MSS) +#define TCP_WND (10 * TCP_MSS) +#define LWIP_WND_SCALE 1 +#define TCP_RCV_SCALE 0 +#define PBUF_POOL_SIZE 400 /* pbuf tests need ~200KByte */ + +/* Enable IGMP and MDNS for MDNS tests */ +#define LWIP_IGMP 1 +#define LWIP_MDNS_RESPONDER 1 +#define LWIP_NUM_NETIF_CLIENT_DATA (LWIP_MDNS_RESPONDER) + +/* Minimal changes to opt.h required for etharp unit tests: */ +#define ETHARP_SUPPORT_STATIC_ENTRIES 1 + +#define MEMP_NUM_SYS_TIMEOUT (LWIP_NUM_SYS_TIMEOUT_INTERNAL + 8) + +/* MIB2 stats are required to check IPv4 reassembly results */ +#define MIB2_STATS 1 + +/* netif tests want to test this, so enable: */ +#define LWIP_NETIF_EXT_STATUS_CALLBACK 1 + +/* Check lwip_stats.mem.illegal instead of asserting */ +#define LWIP_MEM_ILLEGAL_FREE(msg) /* to nothing */ + +#endif /* LWIP_HDR_LWIPOPTS_H */ diff --git a/middleware/lwip/test/unit/mdns/test_mdns.c b/middleware/lwip/test/unit/mdns/test_mdns.c new file mode 100644 index 0000000..01434b5 --- /dev/null +++ b/middleware/lwip/test/unit/mdns/test_mdns.c @@ -0,0 +1,916 @@ +/* + * Copyright (c) 2015 Verisure Innovation AB + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + * Author: Erik Ekman + * + */ + +#include "test_mdns.h" + +#include "lwip/pbuf.h" +#include "lwip/apps/mdns.h" +#include "lwip/apps/mdns_domain.h" +#include "lwip/apps/mdns_priv.h" + +START_TEST(readname_basic) +{ + static const u8_t data[] = { 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0x00 }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 0, &domain); + pbuf_free(p); + fail_unless(offset == sizeof(data)); + fail_unless(domain.length == sizeof(data)); + fail_if(memcmp(&domain.name, data, sizeof(data))); +} +END_TEST + +START_TEST(readname_anydata) +{ + static const u8_t data[] = { 0x05, 0x00, 0xFF, 0x08, 0xc0, 0x0f, 0x04, 0x7f, 0x80, 0x82, 0x88, 0x00 }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 0, &domain); + pbuf_free(p); + fail_unless(offset == sizeof(data)); + fail_unless(domain.length == sizeof(data)); + fail_if(memcmp(&domain.name, data, sizeof(data))); +} +END_TEST + +START_TEST(readname_short_buf) +{ + static const u8_t data[] = { 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a' }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 0, &domain); + pbuf_free(p); + fail_unless(offset == MDNS_READNAME_ERROR); +} +END_TEST + +START_TEST(readname_long_label) +{ + static const u8_t data[] = { + 0x05, 'm', 'u', 'l', 't', 'i', + 0x52, 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', + 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', + 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', + 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', + 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', + 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 0, &domain); + pbuf_free(p); + fail_unless(offset == MDNS_READNAME_ERROR); +} +END_TEST + +START_TEST(readname_overflow) +{ + static const u8_t data[] = { + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 0, &domain); + pbuf_free(p); + fail_unless(offset == MDNS_READNAME_ERROR); +} +END_TEST + +START_TEST(readname_jump_earlier) +{ + static const u8_t data[] = { + /* Some padding needed, not supported to jump to bytes containing dns header */ + /* 0 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* 10 */ 0x0f, 0x0e, 0x05, 'l', 'o', 'c', 'a', 'l', 0x00, 0xab, + /* 20 */ 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0xc0, 0x0c + }; + static const u8_t fullname[] = { + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0x05, 'l', 'o', 'c', 'a', 'l', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 20, &domain); + pbuf_free(p); + fail_unless(offset == sizeof(data)); + fail_unless(domain.length == sizeof(fullname)); + + fail_if(memcmp(&domain.name, fullname, sizeof(fullname))); +} +END_TEST + +START_TEST(readname_jump_earlier_jump) +{ + static const u8_t data[] = { + /* Some padding needed, not supported to jump to bytes containing dns header */ + /* 0x00 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* 0x08 */ 0x00, 0x00, 0x00, 0x00, 0x03, 0x0b, 0x0a, 0xf2, + /* 0x10 */ 0x04, 'c', 'a', 's', 't', 0x00, 0xc0, 0x10, + /* 0x18 */ 0x05, 'm', 'u', 'l', 't', 'i', 0xc0, 0x16 + }; + static const u8_t fullname[] = { + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 0x18, &domain); + pbuf_free(p); + fail_unless(offset == sizeof(data)); + fail_unless(domain.length == sizeof(fullname)); + + fail_if(memcmp(&domain.name, fullname, sizeof(fullname))); +} +END_TEST + +START_TEST(readname_jump_maxdepth) +{ + static const u8_t data[] = { + /* Some padding needed, not supported to jump to bytes containing dns header */ + /* 0x00 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* 0x08 */ 0x00, 0x00, 0x00, 0x00, 0x03, 0x0b, 0x0a, 0xf2, + /* 0x10 */ 0x04, 'n', 'a', 'm', 'e', 0xc0, 0x27, 0x03, + /* 0x18 */ 0x03, 'd', 'n', 's', 0xc0, 0x10, 0xc0, 0x10, + /* 0x20 */ 0x04, 'd', 'e', 'e', 'p', 0xc0, 0x18, 0x00, + /* 0x28 */ 0x04, 'c', 'a', 's', 't', 0xc0, 0x20, 0xb0, + /* 0x30 */ 0x05, 'm', 'u', 'l', 't', 'i', 0xc0, 0x28 + }; + static const u8_t fullname[] = { + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', + 0x04, 'd', 'e', 'e', 'p', 0x03, 'd', 'n', 's', + 0x04, 'n', 'a', 'm', 'e', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 0x30, &domain); + pbuf_free(p); + fail_unless(offset == sizeof(data)); + fail_unless(domain.length == sizeof(fullname)); + + fail_if(memcmp(&domain.name, fullname, sizeof(fullname))); +} +END_TEST + +START_TEST(readname_jump_later) +{ + static const u8_t data[] = { + /* 0x00 */ 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0xc0, 0x10, 0x00, 0x01, 0x40, + /* 0x10 */ 0x05, 'l', 'o', 'c', 'a', 'l', 0x00, 0xab + }; + static const u8_t fullname[] = { + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0x05, 'l', 'o', 'c', 'a', 'l', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 0, &domain); + pbuf_free(p); + fail_unless(offset == 13); + fail_unless(domain.length == sizeof(fullname)); + + fail_if(memcmp(&domain.name, fullname, sizeof(fullname))); +} +END_TEST + +START_TEST(readname_half_jump) +{ + static const u8_t data[] = { + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0xc0 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 0, &domain); + pbuf_free(p); + fail_unless(offset == MDNS_READNAME_ERROR); +} +END_TEST + +START_TEST(readname_jump_toolong) +{ + static const u8_t data[] = { + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0xc2, 0x10, 0x00, 0x01, 0x40 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 0, &domain); + pbuf_free(p); + fail_unless(offset == MDNS_READNAME_ERROR); +} +END_TEST + +START_TEST(readname_jump_loop_label) +{ + static const u8_t data[] = { + /* 0 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* 10 */ 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0xc0, 0x10 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 10, &domain); + pbuf_free(p); + fail_unless(offset == MDNS_READNAME_ERROR); +} +END_TEST + +START_TEST(readname_jump_loop_jump) +{ + static const u8_t data[] = { + /* 0 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* 10 */ 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0xc0, 0x15 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + offset = mdns_readname(p, 10, &domain); + pbuf_free(p); + fail_unless(offset == MDNS_READNAME_ERROR); +} +END_TEST + +START_TEST(add_label_basic) +{ + static const u8_t data[] = { 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0x00 }; + struct mdns_domain domain; + err_t res; + LWIP_UNUSED_ARG(_i); + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, "multi", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, "cast", 4); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_OK); + fail_unless(domain.length == sizeof(data)); + fail_if(memcmp(&domain.name, data, sizeof(data))); +} +END_TEST + +START_TEST(add_label_long_label) +{ + static const char *toolong = "abcdefghijklmnopqrstuvwxyz0123456789-abcdefghijklmnopqrstuvwxyz0123456789-abcdefghijklmnopqrstuvwxyz0123456789-"; + struct mdns_domain domain; + err_t res; + LWIP_UNUSED_ARG(_i); + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, "multi", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, toolong, (u8_t)strlen(toolong)); + fail_unless(res == ERR_VAL); +} +END_TEST + +START_TEST(add_label_full) +{ + static const char *label = "0123456789abcdef0123456789abcdef"; + struct mdns_domain domain; + err_t res; + LWIP_UNUSED_ARG(_i); + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, label, (u8_t)strlen(label)); + fail_unless(res == ERR_OK); + fail_unless(domain.length == 33); + res = mdns_domain_add_label(&domain, label, (u8_t)strlen(label)); + fail_unless(res == ERR_OK); + fail_unless(domain.length == 66); + res = mdns_domain_add_label(&domain, label, (u8_t)strlen(label)); + fail_unless(res == ERR_OK); + fail_unless(domain.length == 99); + res = mdns_domain_add_label(&domain, label, (u8_t)strlen(label)); + fail_unless(res == ERR_OK); + fail_unless(domain.length == 132); + res = mdns_domain_add_label(&domain, label, (u8_t)strlen(label)); + fail_unless(res == ERR_OK); + fail_unless(domain.length == 165); + res = mdns_domain_add_label(&domain, label, (u8_t)strlen(label)); + fail_unless(res == ERR_OK); + fail_unless(domain.length == 198); + res = mdns_domain_add_label(&domain, label, (u8_t)strlen(label)); + fail_unless(res == ERR_OK); + fail_unless(domain.length == 231); + res = mdns_domain_add_label(&domain, label, (u8_t)strlen(label)); + fail_unless(res == ERR_VAL); + fail_unless(domain.length == 231); + res = mdns_domain_add_label(&domain, label, 25); + fail_unless(res == ERR_VAL); + fail_unless(domain.length == 231); + res = mdns_domain_add_label(&domain, label, 24); + fail_unless(res == ERR_VAL); + fail_unless(domain.length == 231); + res = mdns_domain_add_label(&domain, label, 23); + fail_unless(res == ERR_OK); + fail_unless(domain.length == 255); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_OK); + fail_unless(domain.length == 256); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_VAL); + fail_unless(domain.length == 256); +} +END_TEST + +START_TEST(domain_eq_basic) +{ + static const u8_t data[] = { + 0x05, 'm', 'u', 'l', 't', 'i', 0x04, 'c', 'a', 's', 't', 0x00 + }; + struct mdns_domain domain1, domain2; + err_t res; + LWIP_UNUSED_ARG(_i); + + memset(&domain1, 0, sizeof(domain1)); + res = mdns_domain_add_label(&domain1, "multi", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain1, "cast", 4); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain1, NULL, 0); + fail_unless(res == ERR_OK); + fail_unless(domain1.length == sizeof(data)); + + memset(&domain2, 0, sizeof(domain2)); + res = mdns_domain_add_label(&domain2, "multi", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain2, "cast", 4); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain2, NULL, 0); + fail_unless(res == ERR_OK); + + fail_unless(mdns_domain_eq(&domain1, &domain2)); +} +END_TEST + +START_TEST(domain_eq_diff) +{ + struct mdns_domain domain1, domain2; + err_t res; + LWIP_UNUSED_ARG(_i); + + memset(&domain1, 0, sizeof(domain1)); + res = mdns_domain_add_label(&domain1, "multi", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain1, "base", 4); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain1, NULL, 0); + fail_unless(res == ERR_OK); + + memset(&domain2, 0, sizeof(domain2)); + res = mdns_domain_add_label(&domain2, "multi", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain2, "cast", 4); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain2, NULL, 0); + fail_unless(res == ERR_OK); + + fail_if(mdns_domain_eq(&domain1, &domain2)); +} +END_TEST + +START_TEST(domain_eq_case) +{ + struct mdns_domain domain1, domain2; + err_t res; + LWIP_UNUSED_ARG(_i); + + memset(&domain1, 0, sizeof(domain1)); + res = mdns_domain_add_label(&domain1, "multi", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain1, "cast", 4); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain1, NULL, 0); + fail_unless(res == ERR_OK); + + memset(&domain2, 0, sizeof(domain2)); + res = mdns_domain_add_label(&domain2, "MulTI", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain2, "casT", 4); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain2, NULL, 0); + fail_unless(res == ERR_OK); + + fail_unless(mdns_domain_eq(&domain1, &domain2)); +} +END_TEST + +START_TEST(domain_eq_anydata) +{ + static const u8_t data1[] = { 0x05, 0xcc, 0xdc, 0x00, 0xa0 }; + static const u8_t data2[] = { 0x7f, 0x8c, 0x01, 0xff, 0xcf }; + struct mdns_domain domain1, domain2; + err_t res; + LWIP_UNUSED_ARG(_i); + + memset(&domain1, 0, sizeof(domain1)); + res = mdns_domain_add_label(&domain1, (const char*)data1, sizeof(data1)); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain1, "cast", 4); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain1, (const char*)data2, sizeof(data2)); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain1, NULL, 0); + fail_unless(res == ERR_OK); + + memset(&domain2, 0, sizeof(domain2)); + res = mdns_domain_add_label(&domain2, (const char*)data1, sizeof(data1)); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain2, "casT", 4); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain2, (const char*)data2, sizeof(data2)); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain2, NULL, 0); + fail_unless(res == ERR_OK); + + fail_unless(mdns_domain_eq(&domain1, &domain2)); +} +END_TEST + +START_TEST(domain_eq_length) +{ + struct mdns_domain domain1, domain2; + err_t res; + LWIP_UNUSED_ARG(_i); + + memset(&domain1, 0, sizeof(domain1)); + memset(domain1.name, 0xAA, sizeof(MDNS_DOMAIN_MAXLEN)); + res = mdns_domain_add_label(&domain1, "multi", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain1, "cast", 4); + fail_unless(res == ERR_OK); + + memset(&domain2, 0, sizeof(domain2)); + memset(domain2.name, 0xBB, sizeof(MDNS_DOMAIN_MAXLEN)); + res = mdns_domain_add_label(&domain2, "multi", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain2, "cast", 4); + fail_unless(res == ERR_OK); + + fail_unless(mdns_domain_eq(&domain1, &domain2)); +} +END_TEST + +START_TEST(compress_full_match) +{ + static const u8_t data[] = { + 0x00, 0x00, + 0x06, 'f', 'o', 'o', 'b', 'a', 'r', 0x05, 'l', 'o', 'c', 'a', 'l', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + u16_t length; + err_t res; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, "foobar", 6); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, "local", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_OK); + + offset = 2; + length = mdns_compress_domain(p, &offset, &domain); + /* Write 0 bytes, then a jump to addr 2 */ + fail_unless(length == 0); + fail_unless(offset == 2); + + pbuf_free(p); +} +END_TEST + +START_TEST(compress_full_match_subset) +{ + static const u8_t data[] = { + 0x00, 0x00, + 0x02, 'g', 'o', 0x06, 'f', 'o', 'o', 'b', 'a', 'r', 0x05, 'l', 'o', 'c', 'a', 'l', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + u16_t length; + err_t res; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, "foobar", 6); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, "local", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_OK); + + offset = 2; + length = mdns_compress_domain(p, &offset, &domain); + /* Write 0 bytes, then a jump to addr 5 */ + fail_unless(length == 0); + fail_unless(offset == 5); + + pbuf_free(p); +} +END_TEST + +START_TEST(compress_full_match_jump) +{ + static const u8_t data[] = { + /* 0x00 */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + /* 0x10 */ 0x04, 'l', 'w', 'i', 'p', 0x05, 'l', 'o', 'c', 'a', 'l', 0x00, 0xc0, 0x00, 0x02, 0x00, + /* 0x20 */ 0x06, 'f', 'o', 'o', 'b', 'a', 'r', 0xc0, 0x15 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + u16_t length; + err_t res; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, "foobar", 6); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, "local", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_OK); + + offset = 0x20; + length = mdns_compress_domain(p, &offset, &domain); + /* Write 0 bytes, then a jump to addr 0x20 */ + fail_unless(length == 0); + fail_unless(offset == 0x20); + + pbuf_free(p); +} +END_TEST + +START_TEST(compress_no_match) +{ + static const u8_t data[] = { + 0x00, 0x00, + 0x04, 'l', 'w', 'i', 'p', 0x05, 'w', 'i', 'k', 'i', 'a', 0x03, 'c', 'o', 'm', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + u16_t length; + err_t res; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, "foobar", 6); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, "local", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_OK); + + offset = 2; + length = mdns_compress_domain(p, &offset, &domain); + /* Write all bytes, no jump */ + fail_unless(length == domain.length); + + pbuf_free(p); +} +END_TEST + +START_TEST(compress_2nd_label) +{ + static const u8_t data[] = { + 0x00, 0x00, + 0x06, 'f', 'o', 'o', 'b', 'a', 'r', 0x05, 'l', 'o', 'c', 'a', 'l', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + u16_t length; + err_t res; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, "lwip", 4); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, "local", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_OK); + + offset = 2; + length = mdns_compress_domain(p, &offset, &domain); + /* Write 5 bytes, then a jump to addr 9 */ + fail_unless(length == 5); + fail_unless(offset == 9); + + pbuf_free(p); +} +END_TEST + +START_TEST(compress_2nd_label_short) +{ + static const u8_t data[] = { + 0x00, 0x00, + 0x04, 'l', 'w', 'i', 'p', 0x05, 'l', 'o', 'c', 'a', 'l', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + u16_t length; + err_t res; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, "foobar", 6); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, "local", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_OK); + + offset = 2; + length = mdns_compress_domain(p, &offset, &domain); + /* Write 5 bytes, then a jump to addr 7 */ + fail_unless(length == 7); + fail_unless(offset == 7); + + pbuf_free(p); +} +END_TEST + +START_TEST(compress_jump_to_jump) +{ + static const u8_t data[] = { + /* 0x00 */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + /* 0x10 */ 0x04, 'l', 'w', 'i', 'p', 0x05, 'l', 'o', 'c', 'a', 'l', 0x00, 0xc0, 0x00, 0x02, 0x00, + /* 0x20 */ 0x07, 'b', 'a', 'n', 'a', 'n', 'a', 's', 0xc0, 0x15 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + u16_t length; + err_t res; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, "foobar", 6); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, "local", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_OK); + + offset = 0x20; + length = mdns_compress_domain(p, &offset, &domain); + /* Don't compress if jump would be to a jump */ + fail_unless(length == domain.length); + + offset = 0x10; + length = mdns_compress_domain(p, &offset, &domain); + /* Write 7 bytes, then a jump to addr 0x15 */ + fail_unless(length == 7); + fail_unless(offset == 0x15); + + pbuf_free(p); +} +END_TEST + +START_TEST(compress_long_match) +{ + static const u8_t data[] = { + 0x00, 0x00, + 0x06, 'f', 'o', 'o', 'b', 'a', 'r', 0x05, 'l', 'o', 'c', 'a', 'l', 0x03, 'c', 'o', 'm', 0x00 + }; + struct pbuf *p; + struct mdns_domain domain; + u16_t offset; + u16_t length; + err_t res; + LWIP_UNUSED_ARG(_i); + + p = pbuf_alloc(PBUF_RAW, sizeof(data), PBUF_ROM); + fail_if(p == NULL); + p->payload = (void *)(size_t)data; + + memset(&domain, 0, sizeof(domain)); + res = mdns_domain_add_label(&domain, "foobar", 6); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, "local", 5); + fail_unless(res == ERR_OK); + res = mdns_domain_add_label(&domain, NULL, 0); + fail_unless(res == ERR_OK); + + offset = 2; + length = mdns_compress_domain(p, &offset, &domain); + fail_unless(length == domain.length); + + pbuf_free(p); +} +END_TEST + +Suite* mdns_suite(void) +{ + testfunc tests[] = { + TESTFUNC(readname_basic), + TESTFUNC(readname_anydata), + TESTFUNC(readname_short_buf), + TESTFUNC(readname_long_label), + TESTFUNC(readname_overflow), + TESTFUNC(readname_jump_earlier), + TESTFUNC(readname_jump_earlier_jump), + TESTFUNC(readname_jump_maxdepth), + TESTFUNC(readname_jump_later), + TESTFUNC(readname_half_jump), + TESTFUNC(readname_jump_toolong), + TESTFUNC(readname_jump_loop_label), + TESTFUNC(readname_jump_loop_jump), + + TESTFUNC(add_label_basic), + TESTFUNC(add_label_long_label), + TESTFUNC(add_label_full), + + TESTFUNC(domain_eq_basic), + TESTFUNC(domain_eq_diff), + TESTFUNC(domain_eq_case), + TESTFUNC(domain_eq_anydata), + TESTFUNC(domain_eq_length), + + TESTFUNC(compress_full_match), + TESTFUNC(compress_full_match_subset), + TESTFUNC(compress_full_match_jump), + TESTFUNC(compress_no_match), + TESTFUNC(compress_2nd_label), + TESTFUNC(compress_2nd_label_short), + TESTFUNC(compress_jump_to_jump), + TESTFUNC(compress_long_match), + }; + return create_suite("MDNS", tests, sizeof(tests)/sizeof(testfunc), NULL, NULL); +} diff --git a/middleware/lwip/test/unit/mdns/test_mdns.h b/middleware/lwip/test/unit/mdns/test_mdns.h new file mode 100644 index 0000000..c3df339 --- /dev/null +++ b/middleware/lwip/test/unit/mdns/test_mdns.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_MDNS_H__ +#define LWIP_HDR_TEST_MDNS_H__ + +#include "../lwip_check.h" + +Suite* mdns_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/mqtt/test_mqtt.c b/middleware/lwip/test/unit/mqtt/test_mqtt.c new file mode 100644 index 0000000..7cff13e --- /dev/null +++ b/middleware/lwip/test/unit/mqtt/test_mqtt.c @@ -0,0 +1,115 @@ +#include "test_mqtt.h" + +#include "lwip/pbuf.h" +#include "lwip/apps/mqtt.h" +#include "lwip/apps/mqtt_priv.h" +#include "lwip/netif.h" + +const ip_addr_t test_mqtt_local_ip = IPADDR4_INIT_BYTES(192, 168, 1, 1); +const ip_addr_t test_mqtt_remote_ip = IPADDR4_INIT_BYTES(192, 168, 1, 2); +const ip_addr_t test_mqtt_netmask = IPADDR4_INIT_BYTES(255, 255, 255, 0); + +static err_t test_mqtt_netif_output(struct netif *netif, struct pbuf *p, + const ip4_addr_t *ipaddr) +{ + LWIP_UNUSED_ARG(netif); + LWIP_UNUSED_ARG(ipaddr); + LWIP_UNUSED_ARG(p); + return ERR_OK; +} + +static void +test_mqtt_init_netif(struct netif *netif, const ip_addr_t *ip_addr, const ip_addr_t *netmask) +{ + struct netif *n; + memset(netif, 0, sizeof(struct netif)); + netif->output = test_mqtt_netif_output; + netif->flags |= NETIF_FLAG_UP | NETIF_FLAG_LINK_UP; + ip_addr_copy_from_ip4(netif->netmask, *ip_2_ip4(netmask)); + ip_addr_copy_from_ip4(netif->ip_addr, *ip_2_ip4(ip_addr)); + for (n = netif_list; n != NULL; n = n->next) { + if (n == netif) { + return; + } + } + netif->next = NULL; + netif_list = netif; +} + +/* Setups/teardown functions */ +static struct netif *old_netif_list; +static struct netif *old_netif_default; + +static void +mqtt_setup(void) +{ + old_netif_list = netif_list; + old_netif_default = netif_default; + netif_list = NULL; + netif_default = NULL; + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +mqtt_teardown(void) +{ + netif_list = NULL; + netif_default = NULL; + /* restore netif_list for next tests (e.g. loopif) */ + netif_list = old_netif_list; + netif_default = old_netif_default; + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void test_mqtt_connection_cb(mqtt_client_t *client, void *arg, mqtt_connection_status_t status) +{ + LWIP_UNUSED_ARG(client); + LWIP_UNUSED_ARG(arg); + LWIP_UNUSED_ARG(status); +} + +START_TEST(basic_connect) +{ + mqtt_client_t* client; + struct netif netif; + err_t err; + struct mqtt_connect_client_info_t client_info = { + "dumm", + NULL, NULL, + 10, + NULL, NULL, 0, 0 + }; + struct pbuf *p; + unsigned char rxbuf[] = {0x20, 0x02, 0x00, 0x00}; + LWIP_UNUSED_ARG(_i); + + test_mqtt_init_netif(&netif, &test_mqtt_local_ip, &test_mqtt_netmask); + + client = mqtt_client_new(); + fail_unless(client != NULL); + err = mqtt_client_connect(client, &test_mqtt_remote_ip, 1234, test_mqtt_connection_cb, NULL, &client_info); + fail_unless(err == ERR_OK); + + client->conn->connected(client->conn->callback_arg, client->conn, ERR_OK); + p = pbuf_alloc(PBUF_RAW, sizeof(rxbuf), PBUF_REF); + fail_unless(p != NULL); + p->payload = rxbuf; + /* since we hack the rx path, we have to hack the rx window, too: */ + client->conn->rcv_wnd -= p->tot_len; + if (client->conn->recv(client->conn->callback_arg, client->conn, p, ERR_OK) != ERR_OK) { + pbuf_free(p); + } + + mqtt_disconnect(client); + /* fixme: mqtt_client_fre() is missing... */ + mem_free(client); +} +END_TEST + +Suite* mqtt_suite(void) +{ + testfunc tests[] = { + TESTFUNC(basic_connect), + }; + return create_suite("MQTT", tests, sizeof(tests)/sizeof(testfunc), mqtt_setup, mqtt_teardown); +} diff --git a/middleware/lwip/test/unit/mqtt/test_mqtt.h b/middleware/lwip/test/unit/mqtt/test_mqtt.h new file mode 100644 index 0000000..181758c --- /dev/null +++ b/middleware/lwip/test/unit/mqtt/test_mqtt.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_MQTT_H__ +#define LWIP_HDR_TEST_MQTT_H__ + +#include "../lwip_check.h" + +Suite* mqtt_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/tcp/tcp_helper.c b/middleware/lwip/test/unit/tcp/tcp_helper.c new file mode 100644 index 0000000..33ceb20 --- /dev/null +++ b/middleware/lwip/test/unit/tcp/tcp_helper.c @@ -0,0 +1,320 @@ +#include "tcp_helper.h" + +#include "lwip/priv/tcp_priv.h" +#include "lwip/stats.h" +#include "lwip/pbuf.h" +#include "lwip/inet.h" +#include "lwip/inet_chksum.h" +#include "lwip/ip_addr.h" + +#if !LWIP_STATS || !TCP_STATS || !MEMP_STATS +#error "This tests needs TCP- and MEMP-statistics enabled" +#endif + +const ip_addr_t test_local_ip = IPADDR4_INIT_BYTES(192, 168, 1, 1); +const ip_addr_t test_remote_ip = IPADDR4_INIT_BYTES(192, 168, 1, 2); +const ip_addr_t test_netmask = IPADDR4_INIT_BYTES(255, 255, 255, 0); + +/** Remove all pcbs on the given list. */ +static void +tcp_remove(struct tcp_pcb* pcb_list) +{ + struct tcp_pcb *pcb = pcb_list; + struct tcp_pcb *pcb2; + + while(pcb != NULL) { + pcb2 = pcb; + pcb = pcb->next; + tcp_abort(pcb2); + } +} + +/** Remove all pcbs on listen-, active- and time-wait-list (bound- isn't exported). */ +void +tcp_remove_all(void) +{ + tcp_remove(tcp_listen_pcbs.pcbs); + tcp_remove(tcp_bound_pcbs); + tcp_remove(tcp_active_pcbs); + tcp_remove(tcp_tw_pcbs); + fail_unless(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); + fail_unless(MEMP_STATS_GET(used, MEMP_TCP_PCB_LISTEN) == 0); + fail_unless(MEMP_STATS_GET(used, MEMP_TCP_SEG) == 0); + fail_unless(MEMP_STATS_GET(used, MEMP_PBUF_POOL) == 0); +} + +/** Create a TCP segment usable for passing to tcp_input */ +static struct pbuf* +tcp_create_segment_wnd(ip_addr_t* src_ip, ip_addr_t* dst_ip, + u16_t src_port, u16_t dst_port, void* data, size_t data_len, + u32_t seqno, u32_t ackno, u8_t headerflags, u16_t wnd) +{ + struct pbuf *p, *q; + struct ip_hdr* iphdr; + struct tcp_hdr* tcphdr; + u16_t pbuf_len = (u16_t)(sizeof(struct ip_hdr) + sizeof(struct tcp_hdr) + data_len); + LWIP_ASSERT("data_len too big", data_len <= 0xFFFF); + + p = pbuf_alloc(PBUF_RAW, pbuf_len, PBUF_POOL); + EXPECT_RETNULL(p != NULL); + /* first pbuf must be big enough to hold the headers */ + EXPECT_RETNULL(p->len >= (sizeof(struct ip_hdr) + sizeof(struct tcp_hdr))); + if (data_len > 0) { + /* first pbuf must be big enough to hold at least 1 data byte, too */ + EXPECT_RETNULL(p->len > (sizeof(struct ip_hdr) + sizeof(struct tcp_hdr))); + } + + for(q = p; q != NULL; q = q->next) { + memset(q->payload, 0, q->len); + } + + iphdr = (struct ip_hdr*)p->payload; + /* fill IP header */ + iphdr->dest.addr = ip_2_ip4(dst_ip)->addr; + iphdr->src.addr = ip_2_ip4(src_ip)->addr; + IPH_VHL_SET(iphdr, 4, IP_HLEN / 4); + IPH_TOS_SET(iphdr, 0); + IPH_LEN_SET(iphdr, htons(p->tot_len)); + IPH_CHKSUM_SET(iphdr, inet_chksum(iphdr, IP_HLEN)); + + /* let p point to TCP header */ + pbuf_header(p, -(s16_t)sizeof(struct ip_hdr)); + + tcphdr = (struct tcp_hdr*)p->payload; + tcphdr->src = htons(src_port); + tcphdr->dest = htons(dst_port); + tcphdr->seqno = htonl(seqno); + tcphdr->ackno = htonl(ackno); + TCPH_HDRLEN_SET(tcphdr, sizeof(struct tcp_hdr)/4); + TCPH_FLAGS_SET(tcphdr, headerflags); + tcphdr->wnd = htons(wnd); + + if (data_len > 0) { + /* let p point to TCP data */ + pbuf_header(p, -(s16_t)sizeof(struct tcp_hdr)); + /* copy data */ + pbuf_take(p, data, (u16_t)data_len); + /* let p point to TCP header again */ + pbuf_header(p, sizeof(struct tcp_hdr)); + } + + /* calculate checksum */ + + tcphdr->chksum = ip_chksum_pseudo(p, + IP_PROTO_TCP, p->tot_len, src_ip, dst_ip); + + pbuf_header(p, sizeof(struct ip_hdr)); + + return p; +} + +/** Create a TCP segment usable for passing to tcp_input */ +struct pbuf* +tcp_create_segment(ip_addr_t* src_ip, ip_addr_t* dst_ip, + u16_t src_port, u16_t dst_port, void* data, size_t data_len, + u32_t seqno, u32_t ackno, u8_t headerflags) +{ + return tcp_create_segment_wnd(src_ip, dst_ip, src_port, dst_port, data, + data_len, seqno, ackno, headerflags, TCP_WND); +} + +/** Create a TCP segment usable for passing to tcp_input + * - IP-addresses, ports, seqno and ackno are taken from pcb + * - seqno and ackno can be altered with an offset + */ +struct pbuf* +tcp_create_rx_segment(struct tcp_pcb* pcb, void* data, size_t data_len, u32_t seqno_offset, + u32_t ackno_offset, u8_t headerflags) +{ + return tcp_create_segment(&pcb->remote_ip, &pcb->local_ip, pcb->remote_port, pcb->local_port, + data, data_len, pcb->rcv_nxt + seqno_offset, pcb->lastack + ackno_offset, headerflags); +} + +/** Create a TCP segment usable for passing to tcp_input + * - IP-addresses, ports, seqno and ackno are taken from pcb + * - seqno and ackno can be altered with an offset + * - TCP window can be adjusted + */ +struct pbuf* tcp_create_rx_segment_wnd(struct tcp_pcb* pcb, void* data, size_t data_len, + u32_t seqno_offset, u32_t ackno_offset, u8_t headerflags, u16_t wnd) +{ + return tcp_create_segment_wnd(&pcb->remote_ip, &pcb->local_ip, pcb->remote_port, pcb->local_port, + data, data_len, pcb->rcv_nxt + seqno_offset, pcb->lastack + ackno_offset, headerflags, wnd); +} + +/** Safely bring a tcp_pcb into the requested state */ +void +tcp_set_state(struct tcp_pcb* pcb, enum tcp_state state, const ip_addr_t* local_ip, + const ip_addr_t* remote_ip, u16_t local_port, u16_t remote_port) +{ + u32_t iss; + + /* @todo: are these all states? */ + /* @todo: remove from previous list */ + pcb->state = state; + + iss = tcp_next_iss(pcb); + pcb->snd_wl2 = iss; + pcb->snd_nxt = iss; + pcb->lastack = iss; + pcb->snd_lbb = iss; + + if (state == ESTABLISHED) { + TCP_REG(&tcp_active_pcbs, pcb); + ip_addr_copy(pcb->local_ip, *local_ip); + pcb->local_port = local_port; + ip_addr_copy(pcb->remote_ip, *remote_ip); + pcb->remote_port = remote_port; + } else if(state == LISTEN) { + TCP_REG(&tcp_listen_pcbs.pcbs, pcb); + ip_addr_copy(pcb->local_ip, *local_ip); + pcb->local_port = local_port; + } else if(state == TIME_WAIT) { + TCP_REG(&tcp_tw_pcbs, pcb); + ip_addr_copy(pcb->local_ip, *local_ip); + pcb->local_port = local_port; + ip_addr_copy(pcb->remote_ip, *remote_ip); + pcb->remote_port = remote_port; + } else { + fail(); + } +} + +void +test_tcp_counters_err(void* arg, err_t err) +{ + struct test_tcp_counters* counters = (struct test_tcp_counters*)arg; + EXPECT_RET(arg != NULL); + counters->err_calls++; + counters->last_err = err; +} + +static void +test_tcp_counters_check_rxdata(struct test_tcp_counters* counters, struct pbuf* p) +{ + struct pbuf* q; + u32_t i, received; + if(counters->expected_data == NULL) { + /* no data to compare */ + return; + } + EXPECT_RET(counters->recved_bytes + p->tot_len <= counters->expected_data_len); + received = counters->recved_bytes; + for(q = p; q != NULL; q = q->next) { + char *data = (char*)q->payload; + for(i = 0; i < q->len; i++) { + EXPECT_RET(data[i] == counters->expected_data[received]); + received++; + } + } + EXPECT(received == counters->recved_bytes + p->tot_len); +} + +err_t +test_tcp_counters_recv(void* arg, struct tcp_pcb* pcb, struct pbuf* p, err_t err) +{ + struct test_tcp_counters* counters = (struct test_tcp_counters*)arg; + EXPECT_RETX(arg != NULL, ERR_OK); + EXPECT_RETX(pcb != NULL, ERR_OK); + EXPECT_RETX(err == ERR_OK, ERR_OK); + + if (p != NULL) { + if (counters->close_calls == 0) { + counters->recv_calls++; + test_tcp_counters_check_rxdata(counters, p); + counters->recved_bytes += p->tot_len; + } else { + counters->recv_calls_after_close++; + counters->recved_bytes_after_close += p->tot_len; + } + pbuf_free(p); + } else { + counters->close_calls++; + } + EXPECT(counters->recv_calls_after_close == 0 && counters->recved_bytes_after_close == 0); + return ERR_OK; +} + +/** Allocate a pcb and set up the test_tcp_counters_* callbacks */ +struct tcp_pcb* +test_tcp_new_counters_pcb(struct test_tcp_counters* counters) +{ + struct tcp_pcb* pcb = tcp_new(); + if (pcb != NULL) { + /* set up args and callbacks */ + tcp_arg(pcb, counters); + tcp_recv(pcb, test_tcp_counters_recv); + tcp_err(pcb, test_tcp_counters_err); + pcb->snd_wnd = TCP_WND; + pcb->snd_wnd_max = TCP_WND; + } + return pcb; +} + +/** Calls tcp_input() after adjusting current_iphdr_dest */ +void test_tcp_input(struct pbuf *p, struct netif *inp) +{ + struct ip_hdr *iphdr = (struct ip_hdr*)p->payload; + /* these lines are a hack, don't use them as an example :-) */ + ip_addr_copy_from_ip4(*ip_current_dest_addr(), iphdr->dest); + ip_addr_copy_from_ip4(*ip_current_src_addr(), iphdr->src); + ip_current_netif() = inp; + ip_data.current_ip4_header = iphdr; + + /* since adding IPv6, p->payload must point to tcp header, not ip header */ + pbuf_header(p, -(s16_t)sizeof(struct ip_hdr)); + + tcp_input(p, inp); + + ip_addr_set_zero(ip_current_dest_addr()); + ip_addr_set_zero(ip_current_src_addr()); + ip_current_netif() = NULL; + ip_data.current_ip4_header = NULL; +} + +static err_t test_tcp_netif_output(struct netif *netif, struct pbuf *p, + const ip4_addr_t *ipaddr) +{ + struct test_tcp_txcounters *txcounters = (struct test_tcp_txcounters*)netif->state; + LWIP_UNUSED_ARG(ipaddr); + if (txcounters != NULL) + { + txcounters->num_tx_calls++; + txcounters->num_tx_bytes += p->tot_len; + if (txcounters->copy_tx_packets) { + struct pbuf *p_copy = pbuf_alloc(PBUF_LINK, p->tot_len, PBUF_RAM); + err_t err; + EXPECT(p_copy != NULL); + err = pbuf_copy(p_copy, p); + EXPECT(err == ERR_OK); + if (txcounters->tx_packets == NULL) { + txcounters->tx_packets = p_copy; + } else { + pbuf_cat(txcounters->tx_packets, p_copy); + } + } + } + return ERR_OK; +} + +void test_tcp_init_netif(struct netif *netif, struct test_tcp_txcounters *txcounters, + const ip_addr_t *ip_addr, const ip_addr_t *netmask) +{ + struct netif *n; + memset(netif, 0, sizeof(struct netif)); + if (txcounters != NULL) { + memset(txcounters, 0, sizeof(struct test_tcp_txcounters)); + netif->state = txcounters; + } + netif->output = test_tcp_netif_output; + netif->flags |= NETIF_FLAG_UP | NETIF_FLAG_LINK_UP; + ip_addr_copy_from_ip4(netif->netmask, *ip_2_ip4(netmask)); + ip_addr_copy_from_ip4(netif->ip_addr, *ip_2_ip4(ip_addr)); + for (n = netif_list; n != NULL; n = n->next) { + if (n == netif) { + return; + } + } + netif->next = NULL; + netif_list = netif; +} diff --git a/middleware/lwip/test/unit/tcp/tcp_helper.h b/middleware/lwip/test/unit/tcp/tcp_helper.h new file mode 100644 index 0000000..cc72e2a --- /dev/null +++ b/middleware/lwip/test/unit/tcp/tcp_helper.h @@ -0,0 +1,58 @@ +#ifndef LWIP_HDR_TCP_HELPER_H +#define LWIP_HDR_TCP_HELPER_H + +#include "../lwip_check.h" +#include "lwip/arch.h" +#include "lwip/tcp.h" +#include "lwip/netif.h" + +/* counters used for test_tcp_counters_* callback functions */ +struct test_tcp_counters { + u32_t recv_calls; + u32_t recved_bytes; + u32_t recv_calls_after_close; + u32_t recved_bytes_after_close; + u32_t close_calls; + u32_t err_calls; + err_t last_err; + char* expected_data; + u32_t expected_data_len; +}; + +struct test_tcp_txcounters { + u32_t num_tx_calls; + u32_t num_tx_bytes; + u8_t copy_tx_packets; + struct pbuf *tx_packets; +}; + +extern const ip_addr_t test_local_ip; +extern const ip_addr_t test_remote_ip; +extern const ip_addr_t test_netmask; +#define TEST_REMOTE_PORT 0x100 +#define TEST_LOCAL_PORT 0x101 + +/* Helper functions */ +void tcp_remove_all(void); + +struct pbuf* tcp_create_segment(ip_addr_t* src_ip, ip_addr_t* dst_ip, + u16_t src_port, u16_t dst_port, void* data, size_t data_len, + u32_t seqno, u32_t ackno, u8_t headerflags); +struct pbuf* tcp_create_rx_segment(struct tcp_pcb* pcb, void* data, size_t data_len, + u32_t seqno_offset, u32_t ackno_offset, u8_t headerflags); +struct pbuf* tcp_create_rx_segment_wnd(struct tcp_pcb* pcb, void* data, size_t data_len, + u32_t seqno_offset, u32_t ackno_offset, u8_t headerflags, u16_t wnd); +void tcp_set_state(struct tcp_pcb* pcb, enum tcp_state state, const ip_addr_t* local_ip, + const ip_addr_t* remote_ip, u16_t local_port, u16_t remote_port); +void test_tcp_counters_err(void* arg, err_t err); +err_t test_tcp_counters_recv(void* arg, struct tcp_pcb* pcb, struct pbuf* p, err_t err); + +struct tcp_pcb* test_tcp_new_counters_pcb(struct test_tcp_counters* counters); + +void test_tcp_input(struct pbuf *p, struct netif *inp); + +void test_tcp_init_netif(struct netif *netif, struct test_tcp_txcounters *txcounters, + const ip_addr_t *ip_addr, const ip_addr_t *netmask); + + +#endif diff --git a/middleware/lwip/test/unit/tcp/test_tcp.c b/middleware/lwip/test/unit/tcp/test_tcp.c new file mode 100644 index 0000000..3560879 --- /dev/null +++ b/middleware/lwip/test/unit/tcp/test_tcp.c @@ -0,0 +1,1696 @@ +#include "test_tcp.h" + +#include "lwip/priv/tcp_priv.h" +#include "lwip/stats.h" +#include "lwip/inet.h" +#include "tcp_helper.h" +#include "lwip/inet_chksum.h" + +#ifdef _MSC_VER +#pragma warning(disable: 4307) /* we explicitly wrap around TCP seqnos */ +#endif + +#if !LWIP_STATS || !TCP_STATS || !MEMP_STATS +#error "This tests needs TCP- and MEMP-statistics enabled" +#endif +#if TCP_SND_BUF <= TCP_WND +#error "This tests needs TCP_SND_BUF to be > TCP_WND" +#endif + +/* used with check_seqnos() */ +#define SEQNO1 (0xFFFFFF00 - TCP_MSS) +#define ISS 6510 +static u32_t seqnos[] = { + SEQNO1, + SEQNO1 + (1 * TCP_MSS), + SEQNO1 + (2 * TCP_MSS), + SEQNO1 + (3 * TCP_MSS), + SEQNO1 + (4 * TCP_MSS), + SEQNO1 + (5 * TCP_MSS) }; + +static u8_t test_tcp_timer; + +/* our own version of tcp_tmr so we can reset fast/slow timer state */ +static void +test_tcp_tmr(void) +{ + tcp_fasttmr(); + if (++test_tcp_timer & 1) { + tcp_slowtmr(); + } +} + +/* Setups/teardown functions */ +static struct netif *old_netif_list; +static struct netif *old_netif_default; + +static void +tcp_setup(void) +{ + struct tcp_pcb dummy_pcb; /* we need this for tcp_next_iss() only */ + + old_netif_list = netif_list; + old_netif_default = netif_default; + netif_list = NULL; + netif_default = NULL; + /* reset iss to default (6510) */ + tcp_ticks = 0; + tcp_ticks = 0 - (tcp_next_iss(&dummy_pcb) - 6510); + tcp_next_iss(&dummy_pcb); + tcp_ticks = 0; + + test_tcp_timer = 0; + tcp_remove_all(); + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +tcp_teardown(void) +{ + netif_list = NULL; + netif_default = NULL; + tcp_remove_all(); + /* restore netif_list for next tests (e.g. loopif) */ + netif_list = old_netif_list; + netif_default = old_netif_default; + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + + +/* Test functions */ + +/** Call tcp_new() and tcp_abort() and test memp stats */ +START_TEST(test_tcp_new_abort) +{ + struct tcp_pcb* pcb; + LWIP_UNUSED_ARG(_i); + + fail_unless(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); + + pcb = tcp_new(); + fail_unless(pcb != NULL); + if (pcb != NULL) { + fail_unless(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + fail_unless(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); + } +} +END_TEST + +/** Call tcp_new() and tcp_abort() and test memp stats */ +START_TEST(test_tcp_listen_passive_open) +{ + struct tcp_pcb *pcb, *pcbl; + struct tcp_pcb_listen *lpcb; + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct pbuf *p; + ip_addr_t src_addr; + err_t err; + LWIP_UNUSED_ARG(_i); + + fail_unless(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); + + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + + pcb = tcp_new(); + EXPECT_RET(pcb != NULL); + err = tcp_bind(pcb, &netif.ip_addr, 1234); + EXPECT(err == ERR_OK); + pcbl = tcp_listen(pcb); + EXPECT_RET(pcbl != NULL); + EXPECT_RET(pcbl != pcb); + lpcb = (struct tcp_pcb_listen *)pcbl; + + ip_addr_set_ip4_u32_val(src_addr, lwip_htonl(lwip_ntohl(ip_addr_get_ip4_u32(&lpcb->local_ip)) + 1)); + + /* check correct syn packet */ + p = tcp_create_segment(&src_addr, &lpcb->local_ip, 12345, + lpcb->local_port, NULL, 0, 12345, 54321, TCP_SYN); + EXPECT(p != NULL); + if (p != NULL) { + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + /* check if counters are as expected */ + EXPECT(txcounters.num_tx_calls == 1); + } + + /* check syn packet with short length */ + p = tcp_create_segment(&src_addr, &lpcb->local_ip, 12345, + lpcb->local_port, NULL, 0, 12345, 54321, TCP_SYN); + EXPECT(p != NULL); + EXPECT(p->next == NULL); + if ((p != NULL) && (p->next == NULL)) { + p->len -= 2; + p->tot_len -= 2; + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + /* check if counters are as expected */ + EXPECT(txcounters.num_tx_calls == 1); + } + + tcp_close(pcbl); +} +END_TEST + +/** Create an ESTABLISHED pcb and check if receive callback is called */ +START_TEST(test_tcp_recv_inseq) +{ + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf* p; + char data[] = {1, 2, 3, 4}; + u16_t data_len; + struct netif netif; + struct test_tcp_txcounters txcounters; + LWIP_UNUSED_ARG(_i); + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + data_len = sizeof(data); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = data_len; + counters.expected_data = data; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + + /* create a segment */ + p = tcp_create_rx_segment(pcb, counters.expected_data, data_len, 0, 0, 0); + EXPECT(p != NULL); + if (p != NULL) { + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 1); + EXPECT(counters.recved_bytes == data_len); + EXPECT(counters.err_calls == 0); + } + + /* make sure the pcb is freed */ + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + +/** Create an ESTABLISHED pcb and check if receive callback is called if a segment + * overlapping rcv_nxt is received */ +START_TEST(test_tcp_recv_inseq_trim) +{ + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf* p; + char data[PBUF_POOL_BUFSIZE*2]; + u16_t data_len; + struct netif netif; + struct test_tcp_txcounters txcounters; + const u32_t new_data_len = 40; + LWIP_UNUSED_ARG(_i); + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + data_len = sizeof(data); + memset(data, 0, sizeof(data)); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = data_len; + counters.expected_data = data; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + + /* create a segment (with an overlapping/old seqno so that the new data begins in the 2nd pbuf) */ + p = tcp_create_rx_segment(pcb, counters.expected_data, data_len, (u32_t)(0-(data_len-new_data_len)), 0, 0); + EXPECT(p != NULL); + if (p != NULL) { + EXPECT(p->next != NULL); + if (p->next != NULL) { + EXPECT(p->next->next != NULL); + } + } + if ((p != NULL) && (p->next != NULL) && (p->next->next != NULL)) { + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 1); + EXPECT(counters.recved_bytes == new_data_len); + EXPECT(counters.err_calls == 0); + } + + /* make sure the pcb is freed */ + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + +static err_t test_tcp_recv_expect1byte(void* arg, struct tcp_pcb* pcb, struct pbuf* p, err_t err); + +static err_t +test_tcp_recv_expectclose(void* arg, struct tcp_pcb* pcb, struct pbuf* p, err_t err) +{ + EXPECT_RETX(pcb != NULL, ERR_OK); + EXPECT_RETX(err == ERR_OK, ERR_OK); + LWIP_UNUSED_ARG(arg); + + if (p != NULL) { + fail(); + } else { + /* correct: FIN received; close our end, too */ + err_t err2 = tcp_close(pcb); + fail_unless(err2 == ERR_OK); + /* set back to some other rx function, just to not get here again */ + tcp_recv(pcb, test_tcp_recv_expect1byte); + } + return ERR_OK; +} + +static err_t +test_tcp_recv_expect1byte(void* arg, struct tcp_pcb* pcb, struct pbuf* p, err_t err) +{ + EXPECT_RETX(pcb != NULL, ERR_OK); + EXPECT_RETX(err == ERR_OK, ERR_OK); + LWIP_UNUSED_ARG(arg); + + if (p != NULL) { + if ((p->len == 1) && (p->tot_len == 1)) { + tcp_recv(pcb, test_tcp_recv_expectclose); + } else { + fail(); + } + pbuf_free(p); + } else { + fail(); + } + return ERR_OK; +} + +START_TEST(test_tcp_passive_close) +{ + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf* p; + char data = 0x0f; + struct netif netif; + struct test_tcp_txcounters txcounters; + LWIP_UNUSED_ARG(_i); + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = 1; + counters.expected_data = &data; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + + /* create a segment without data */ + p = tcp_create_rx_segment(pcb, &data, 1, 0, 0, TCP_FIN); + EXPECT(p != NULL); + if (p != NULL) { + tcp_recv(pcb, test_tcp_recv_expect1byte); + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + } + /* don't free the pcb here (part of the test!) */ +} +END_TEST + +START_TEST(test_tcp_active_abort) +{ + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + char data = 0x0f; + struct netif netif; + struct test_tcp_txcounters txcounters; + LWIP_UNUSED_ARG(_i); + + memset(&txcounters, 0, sizeof(txcounters)); + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = 1; + counters.expected_data = &data; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + + /* abort the pcb */ + EXPECT_RET(txcounters.num_tx_calls == 0); + txcounters.copy_tx_packets = 1; + tcp_abort(pcb); + txcounters.copy_tx_packets = 0; + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == 40U); + EXPECT(txcounters.tx_packets != NULL); + if (txcounters.tx_packets != NULL) { + u16_t ret; + struct tcp_hdr tcphdr; + ret = pbuf_copy_partial(txcounters.tx_packets, &tcphdr, 20, 20); + EXPECT(ret == 20); + EXPECT(tcphdr.dest == PP_HTONS(TEST_REMOTE_PORT)); + EXPECT(tcphdr.src == PP_HTONS(TEST_LOCAL_PORT)); + pbuf_free(txcounters.tx_packets); + txcounters.tx_packets = NULL; + } + + /* don't free the pcb here (part of the test!) */ +} +END_TEST + +/** Check that we handle malformed tcp headers, and discard the pbuf(s) */ +START_TEST(test_tcp_malformed_header) +{ + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf* p; + char data[] = {1, 2, 3, 4}; + u16_t data_len, chksum; + struct netif netif; + struct test_tcp_txcounters txcounters; + struct tcp_hdr *hdr; + LWIP_UNUSED_ARG(_i); + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + data_len = sizeof(data); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = data_len; + counters.expected_data = data; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + + /* create a segment */ + p = tcp_create_rx_segment(pcb, counters.expected_data, data_len, 0, 0, 0); + + pbuf_header(p, -(s16_t)sizeof(struct ip_hdr)); + + hdr = (struct tcp_hdr *)p->payload; + TCPH_HDRLEN_FLAGS_SET(hdr, 15, 0x3d1); + + hdr->chksum = 0; + + chksum = ip_chksum_pseudo(p, IP_PROTO_TCP, p->tot_len, + &test_remote_ip, &test_local_ip); + + hdr->chksum = chksum; + + pbuf_header(p, sizeof(struct ip_hdr)); + + EXPECT(p != NULL); + EXPECT(p->next == NULL); + if (p != NULL) { + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + } + + /* make sure the pcb is freed */ + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + + +/** Provoke fast retransmission by duplicate ACKs and then recover by ACKing all sent data. + * At the end, send more data. */ +START_TEST(test_tcp_fast_retx_recover) +{ + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf* p; + char data1[] = { 1, 2, 3, 4}; + char data2[] = { 5, 6, 7, 8}; + char data3[] = { 9, 10, 11, 12}; + char data4[] = {13, 14, 15, 16}; + char data5[] = {17, 18, 19, 20}; + char data6[TCP_MSS] = {21, 22, 23, 24}; + err_t err; + LWIP_UNUSED_ARG(_i); + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + memset(&counters, 0, sizeof(counters)); + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->mss = TCP_MSS; + /* disable initial congestion window (we don't send a SYN here...) */ + pcb->cwnd = pcb->snd_wnd; + + /* send data1 */ + err = tcp_write(pcb, data1, sizeof(data1), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + EXPECT_RET(txcounters.num_tx_calls == 1); + EXPECT_RET(txcounters.num_tx_bytes == sizeof(data1) + sizeof(struct tcp_hdr) + sizeof(struct ip_hdr)); + memset(&txcounters, 0, sizeof(txcounters)); + /* "recv" ACK for data1 */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 4, TCP_ACK); + EXPECT_RET(p != NULL); + test_tcp_input(p, &netif); + EXPECT_RET(txcounters.num_tx_calls == 0); + EXPECT_RET(pcb->unacked == NULL); + /* send data2 */ + err = tcp_write(pcb, data2, sizeof(data2), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + EXPECT_RET(txcounters.num_tx_calls == 1); + EXPECT_RET(txcounters.num_tx_bytes == sizeof(data2) + sizeof(struct tcp_hdr) + sizeof(struct ip_hdr)); + memset(&txcounters, 0, sizeof(txcounters)); + /* duplicate ACK for data1 (data2 is lost) */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 0, TCP_ACK); + EXPECT_RET(p != NULL); + test_tcp_input(p, &netif); + EXPECT_RET(txcounters.num_tx_calls == 0); + EXPECT_RET(pcb->dupacks == 1); + /* send data3 */ + err = tcp_write(pcb, data3, sizeof(data3), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + /* nagle enabled, no tx calls */ + EXPECT_RET(txcounters.num_tx_calls == 0); + EXPECT_RET(txcounters.num_tx_bytes == 0); + memset(&txcounters, 0, sizeof(txcounters)); + /* 2nd duplicate ACK for data1 (data2 and data3 are lost) */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 0, TCP_ACK); + EXPECT_RET(p != NULL); + test_tcp_input(p, &netif); + EXPECT_RET(txcounters.num_tx_calls == 0); + EXPECT_RET(pcb->dupacks == 2); + /* queue data4, don't send it (unsent-oversize is != 0) */ + err = tcp_write(pcb, data4, sizeof(data4), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + /* 3nd duplicate ACK for data1 (data2 and data3 are lost) -> fast retransmission */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 0, TCP_ACK); + EXPECT_RET(p != NULL); + test_tcp_input(p, &netif); + /*EXPECT_RET(txcounters.num_tx_calls == 1);*/ + EXPECT_RET(pcb->dupacks == 3); + memset(&txcounters, 0, sizeof(txcounters)); + /* @todo: check expected data?*/ + + /* send data5, not output yet */ + err = tcp_write(pcb, data5, sizeof(data5), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + /*err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK);*/ + EXPECT_RET(txcounters.num_tx_calls == 0); + EXPECT_RET(txcounters.num_tx_bytes == 0); + memset(&txcounters, 0, sizeof(txcounters)); + { + int i = 0; + do + { + err = tcp_write(pcb, data6, TCP_MSS, TCP_WRITE_FLAG_COPY); + i++; + }while(err == ERR_OK); + EXPECT_RET(err != ERR_OK); + } + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + /*EXPECT_RET(txcounters.num_tx_calls == 0); + EXPECT_RET(txcounters.num_tx_bytes == 0);*/ + memset(&txcounters, 0, sizeof(txcounters)); + + /* send even more data */ + err = tcp_write(pcb, data5, sizeof(data5), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + /* ...and even more data */ + err = tcp_write(pcb, data5, sizeof(data5), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + /* ...and even more data */ + err = tcp_write(pcb, data5, sizeof(data5), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + /* ...and even more data */ + err = tcp_write(pcb, data5, sizeof(data5), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + + /* send ACKs for data2 and data3 */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 12, TCP_ACK); + EXPECT_RET(p != NULL); + test_tcp_input(p, &netif); + /*EXPECT_RET(txcounters.num_tx_calls == 0);*/ + + /* ...and even more data */ + err = tcp_write(pcb, data5, sizeof(data5), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + /* ...and even more data */ + err = tcp_write(pcb, data5, sizeof(data5), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + +#if 0 + /* create expected segment */ + p1 = tcp_create_rx_segment(pcb, counters.expected_data, data_len, 0, 0, 0); + EXPECT_RET(p != NULL); + if (p != NULL) { + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + /* check if counters are as expected */ + EXPECT_RET(counters.close_calls == 0); + EXPECT_RET(counters.recv_calls == 1); + EXPECT_RET(counters.recved_bytes == data_len); + EXPECT_RET(counters.err_calls == 0); + } +#endif + /* make sure the pcb is freed */ + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + +static u8_t tx_data[TCP_WND*2]; + +static void +check_seqnos(struct tcp_seg *segs, int num_expected, u32_t *seqnos_expected) +{ + struct tcp_seg *s = segs; + int i; + for (i = 0; i < num_expected; i++, s = s->next) { + EXPECT_RET(s != NULL); + EXPECT(s->tcphdr->seqno == htonl(seqnos_expected[i])); + } + EXPECT(s == NULL); +} + +/** Send data with sequence numbers that wrap around the u32_t range. + * Then, provoke fast retransmission by duplicate ACKs and check that all + * segment lists are still properly sorted. */ +START_TEST(test_tcp_fast_rexmit_wraparound) +{ + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf* p; + err_t err; + size_t i; + u16_t sent_total = 0; + LWIP_UNUSED_ARG(_i); + + for (i = 0; i < sizeof(tx_data); i++) { + tx_data[i] = (u8_t)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + memset(&counters, 0, sizeof(counters)); + + /* create and initialize the pcb */ + tcp_ticks = SEQNO1 - ISS; + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->mss = TCP_MSS; + /* disable initial congestion window (we don't send a SYN here...) */ + pcb->cwnd = 2*TCP_MSS; + /* start in congestion advoidance */ + pcb->ssthresh = pcb->cwnd; + + /* send 6 mss-sized segments */ + for (i = 0; i < 6; i++) { + err = tcp_write(pcb, &tx_data[sent_total], TCP_MSS, TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + sent_total += TCP_MSS; + } + check_seqnos(pcb->unsent, 6, seqnos); + EXPECT(pcb->unacked == NULL); + err = tcp_output(pcb); + EXPECT(txcounters.num_tx_calls == 2); + EXPECT(txcounters.num_tx_bytes == 2 * (TCP_MSS + 40U)); + memset(&txcounters, 0, sizeof(txcounters)); + + check_seqnos(pcb->unacked, 2, seqnos); + check_seqnos(pcb->unsent, 4, &seqnos[2]); + + /* ACK the first segment */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, TCP_MSS, TCP_ACK); + test_tcp_input(p, &netif); + /* ensure this didn't trigger a retransmission. Only one + segment should be transmitted because cwnd opened up by + TCP_MSS and a fraction since we are in congestion avoidance */ + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == TCP_MSS + 40U); + memset(&txcounters, 0, sizeof(txcounters)); + check_seqnos(pcb->unacked, 2, &seqnos[1]); + check_seqnos(pcb->unsent, 3, &seqnos[3]); + + /* 3 dupacks */ + EXPECT(pcb->dupacks == 0); + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 0, TCP_ACK); + test_tcp_input(p, &netif); + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(pcb->dupacks == 1); + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 0, TCP_ACK); + test_tcp_input(p, &netif); + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(pcb->dupacks == 2); + /* 3rd dupack -> fast rexmit */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 0, TCP_ACK); + test_tcp_input(p, &netif); + EXPECT(pcb->dupacks == 3); + EXPECT(txcounters.num_tx_calls == 4); + memset(&txcounters, 0, sizeof(txcounters)); + EXPECT(pcb->unsent == NULL); + check_seqnos(pcb->unacked, 5, &seqnos[1]); + + /* make sure the pcb is freed */ + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + +/** Send data with sequence numbers that wrap around the u32_t range. + * Then, provoke RTO retransmission and check that all + * segment lists are still properly sorted. */ +START_TEST(test_tcp_rto_rexmit_wraparound) +{ + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct tcp_pcb dummy_pcb_for_iss; /* we need this for tcp_next_iss() only */ + err_t err; + size_t i; + u16_t sent_total = 0; + LWIP_UNUSED_ARG(_i); + + for (i = 0; i < sizeof(tx_data); i++) { + tx_data[i] = (u8_t)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + memset(&counters, 0, sizeof(counters)); + + /* create and initialize the pcb */ + tcp_ticks = 0; + tcp_ticks = 0 - tcp_next_iss(&dummy_pcb_for_iss); + tcp_ticks = SEQNO1 - tcp_next_iss(&dummy_pcb_for_iss); + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->mss = TCP_MSS; + /* disable initial congestion window (we don't send a SYN here...) */ + pcb->cwnd = 2*TCP_MSS; + + /* send 6 mss-sized segments */ + for (i = 0; i < 6; i++) { + err = tcp_write(pcb, &tx_data[sent_total], TCP_MSS, TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + sent_total += TCP_MSS; + } + check_seqnos(pcb->unsent, 6, seqnos); + EXPECT(pcb->unacked == NULL); + err = tcp_output(pcb); + EXPECT(txcounters.num_tx_calls == 2); + EXPECT(txcounters.num_tx_bytes == 2 * (TCP_MSS + 40U)); + memset(&txcounters, 0, sizeof(txcounters)); + + check_seqnos(pcb->unacked, 2, seqnos); + check_seqnos(pcb->unsent, 4, &seqnos[2]); + + /* call the tcp timer some times */ + for (i = 0; i < 10; i++) { + test_tcp_tmr(); + EXPECT(txcounters.num_tx_calls == 0); + } + /* 11th call to tcp_tmr: RTO rexmit fires */ + test_tcp_tmr(); + EXPECT(txcounters.num_tx_calls == 1); + check_seqnos(pcb->unacked, 1, seqnos); + check_seqnos(pcb->unsent, 5, &seqnos[1]); + + /* fake greater cwnd */ + pcb->cwnd = pcb->snd_wnd; + /* send more data */ + err = tcp_output(pcb); + EXPECT(err == ERR_OK); + /* check queues are sorted */ + EXPECT(pcb->unsent == NULL); + check_seqnos(pcb->unacked, 6, seqnos); + + /* make sure the pcb is freed */ + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + +/** Provoke fast retransmission by duplicate ACKs and then recover by ACKing all sent data. + * At the end, send more data. */ +static void test_tcp_tx_full_window_lost(u8_t zero_window_probe_from_unsent) +{ + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf *p; + err_t err; + size_t i; + u16_t sent_total; + u8_t expected = 0xFE; + + for (i = 0; i < sizeof(tx_data); i++) { + u8_t d = (u8_t)i; + if (d == 0xFE) { + d = 0xF0; + } + tx_data[i] = d; + } + if (zero_window_probe_from_unsent) { + tx_data[TCP_WND] = expected; + } else { + tx_data[0] = expected; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + memset(&counters, 0, sizeof(counters)); + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->mss = TCP_MSS; + /* disable initial congestion window (we don't send a SYN here...) */ + pcb->cwnd = pcb->snd_wnd; + + /* send a full window (minus 1 packets) of TCP data in MSS-sized chunks */ + sent_total = 0; + if ((TCP_WND - TCP_MSS) % TCP_MSS != 0) { + u16_t initial_data_len = (TCP_WND - TCP_MSS) % TCP_MSS; + err = tcp_write(pcb, &tx_data[sent_total], initial_data_len, TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == initial_data_len + 40U); + memset(&txcounters, 0, sizeof(txcounters)); + sent_total += initial_data_len; + } + for (; sent_total < (TCP_WND - TCP_MSS); sent_total += TCP_MSS) { + err = tcp_write(pcb, &tx_data[sent_total], TCP_MSS, TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == TCP_MSS + 40U); + memset(&txcounters, 0, sizeof(txcounters)); + } + EXPECT(sent_total == (TCP_WND - TCP_MSS)); + + /* now ACK the packet before the first */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 0, TCP_ACK); + test_tcp_input(p, &netif); + /* ensure this didn't trigger a retransmission */ + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(txcounters.num_tx_bytes == 0); + + EXPECT(pcb->persist_backoff == 0); + /* send the last packet, now a complete window has been sent */ + err = tcp_write(pcb, &tx_data[sent_total], TCP_MSS, TCP_WRITE_FLAG_COPY); + sent_total += TCP_MSS; + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == TCP_MSS + 40U); + memset(&txcounters, 0, sizeof(txcounters)); + EXPECT(pcb->persist_backoff == 0); + + if (zero_window_probe_from_unsent) { + /* ACK all data but close the TX window */ + p = tcp_create_rx_segment_wnd(pcb, NULL, 0, 0, TCP_WND, TCP_ACK, 0); + test_tcp_input(p, &netif); + /* ensure this didn't trigger any transmission */ + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(txcounters.num_tx_bytes == 0); + /* window is completely full, but persist timer is off since send buffer is empty */ + EXPECT(pcb->snd_wnd == 0); + EXPECT(pcb->persist_backoff == 0); + } + + /* send one byte more (out of window) -> persist timer starts */ + err = tcp_write(pcb, &tx_data[sent_total], 1, TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(txcounters.num_tx_bytes == 0); + memset(&txcounters, 0, sizeof(txcounters)); + if (!zero_window_probe_from_unsent) { + /* no persist timer unless a zero window announcement has been received */ + EXPECT(pcb->persist_backoff == 0); + } else { + EXPECT(pcb->persist_backoff == 1); + + /* call tcp_timer some more times to let persist timer count up */ + for (i = 0; i < 4; i++) { + test_tcp_tmr(); + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(txcounters.num_tx_bytes == 0); + } + + /* this should trigger the zero-window-probe */ + txcounters.copy_tx_packets = 1; + test_tcp_tmr(); + txcounters.copy_tx_packets = 0; + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == 1 + 40U); + EXPECT(txcounters.tx_packets != NULL); + if (txcounters.tx_packets != NULL) { + u8_t sent; + u16_t ret; + ret = pbuf_copy_partial(txcounters.tx_packets, &sent, 1, 40U); + EXPECT(ret == 1); + EXPECT(sent == expected); + } + if (txcounters.tx_packets != NULL) { + pbuf_free(txcounters.tx_packets); + txcounters.tx_packets = NULL; + } + } + + /* make sure the pcb is freed */ + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} + +START_TEST(test_tcp_tx_full_window_lost_from_unsent) +{ + LWIP_UNUSED_ARG(_i); + test_tcp_tx_full_window_lost(1); +} +END_TEST + +START_TEST(test_tcp_tx_full_window_lost_from_unacked) +{ + LWIP_UNUSED_ARG(_i); + test_tcp_tx_full_window_lost(0); +} +END_TEST + +/** Send data, provoke retransmission and then add data to a segment + * that already has been sent before. */ +START_TEST(test_tcp_retx_add_to_sent) +{ + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf* p; + char data1a[] = { 1, 2, 3}; + char data1b[] = { 4}; + char data2a[] = { 5, 6, 7, 8}; + char data2b[] = { 5, 6, 7}; + char data3[] = { 9, 10, 11, 12, 12}; + char data4[] = { 13, 14, 15, 16,17}; + err_t err; + int i; + LWIP_UNUSED_ARG(_i); + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + memset(&counters, 0, sizeof(counters)); + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->mss = TCP_MSS; + /* disable initial congestion window (we don't send a SYN here...) */ + pcb->cwnd = pcb->snd_wnd; + + /* send data1 */ + err = tcp_write(pcb, data1a, sizeof(data1a), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_write(pcb, data1b, sizeof(data1b), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + EXPECT_RET(txcounters.num_tx_calls == 1); + EXPECT_RET(txcounters.num_tx_bytes == sizeof(data1a) + sizeof(data1b) + sizeof(struct tcp_hdr) + sizeof(struct ip_hdr)); + memset(&txcounters, 0, sizeof(txcounters)); + /* "recv" ACK for data1 */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 4, TCP_ACK); + EXPECT_RET(p != NULL); + test_tcp_input(p, &netif); + EXPECT_RET(txcounters.num_tx_calls == 0); + EXPECT_RET(pcb->unacked == NULL); + /* send data2 */ + err = tcp_write(pcb, data2a, sizeof(data2a), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_write(pcb, data2b, sizeof(data2b), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + EXPECT_RET(txcounters.num_tx_calls == 1); + EXPECT_RET(txcounters.num_tx_bytes == sizeof(data2a) + sizeof(data2b) + sizeof(struct tcp_hdr) + sizeof(struct ip_hdr)); + memset(&txcounters, 0, sizeof(txcounters)); + /* send data3 */ + err = tcp_write(pcb, data3, sizeof(data3), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + EXPECT_RET(txcounters.num_tx_calls == 0); + EXPECT_RET(txcounters.num_tx_bytes == 0); + memset(&txcounters, 0, sizeof(txcounters)); + + /* data3 not sent yet (nagle) */ + EXPECT_RET(pcb->unacked != NULL); + EXPECT_RET(pcb->unsent != NULL); + + /* disable nagle for this test so data to sent segment can be added below... */ + tcp_nagle_disable(pcb); + + /* call the tcp timer some times */ + for (i = 0; i < 20; i++) { + test_tcp_tmr(); + if (txcounters.num_tx_calls != 0) { + break; + } + } + /* data3 sent */ + EXPECT_RET(txcounters.num_tx_calls == 1); + EXPECT_RET(txcounters.num_tx_bytes == sizeof(data3) + sizeof(struct tcp_hdr) + sizeof(struct ip_hdr)); + EXPECT_RET(pcb->unacked != NULL); + EXPECT_RET(pcb->unsent == NULL); + memset(&txcounters, 0, sizeof(txcounters)); + + tcp_nagle_enable(pcb); + + /* call the tcp timer some times */ + for (i = 0; i < 20; i++) { + test_tcp_tmr(); + if (txcounters.num_tx_calls != 0) { + break; + } + } + /* RTO: rexmit of data2 */ + EXPECT_RET(txcounters.num_tx_calls == 1); + EXPECT_RET(txcounters.num_tx_bytes == sizeof(data2a) + sizeof(data2b) + sizeof(struct tcp_hdr) + sizeof(struct ip_hdr)); + EXPECT_RET(pcb->unacked != NULL); + EXPECT_RET(pcb->unsent != NULL); + memset(&txcounters, 0, sizeof(txcounters)); + + /* send data4 */ + err = tcp_write(pcb, data4, sizeof(data4), TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + /* disable nagle for this test so data to transmit without further ACKs... */ + tcp_nagle_disable(pcb); + err = tcp_output(pcb); + EXPECT_RET(err == ERR_OK); + /* nagle enabled, no tx calls */ + EXPECT_RET(txcounters.num_tx_calls == 1); + EXPECT_RET(txcounters.num_tx_bytes == sizeof(data3) + sizeof(data4) + sizeof(struct tcp_hdr) + sizeof(struct ip_hdr)); + memset(&txcounters, 0, sizeof(txcounters)); + /* make sure the pcb is freed */ + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + +START_TEST(test_tcp_rto_tracking) +{ + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf* p; + err_t err; + size_t i; + u16_t sent_total = 0; + LWIP_UNUSED_ARG(_i); + + for (i = 0; i < sizeof(tx_data); i++) { + tx_data[i] = (u8_t)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + memset(&counters, 0, sizeof(counters)); + + /* create and initialize the pcb */ + tcp_ticks = SEQNO1 - ISS; + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->mss = TCP_MSS; + /* Set congestion window large enough to send all our segments */ + pcb->cwnd = 5*TCP_MSS; + + /* send 5 mss-sized segments */ + for (i = 0; i < 5; i++) { + err = tcp_write(pcb, &tx_data[sent_total], TCP_MSS, TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + sent_total += TCP_MSS; + } + check_seqnos(pcb->unsent, 5, seqnos); + EXPECT(pcb->unacked == NULL); + err = tcp_output(pcb); + EXPECT(txcounters.num_tx_calls == 5); + EXPECT(txcounters.num_tx_bytes == 5 * (TCP_MSS + 40U)); + memset(&txcounters, 0, sizeof(txcounters)); + /* Check all 5 are in-flight */ + EXPECT(pcb->unsent == NULL); + check_seqnos(pcb->unacked, 5, seqnos); + + /* Force us into retransmisson timeout */ + while (!(pcb->flags & TF_RTO)) { + test_tcp_tmr(); + } + /* Ensure 4 remaining segments are back on unsent, ready for retransmission */ + check_seqnos(pcb->unsent, 4, &seqnos[1]); + /* Ensure 1st segment is on unacked (already retransmitted) */ + check_seqnos(pcb->unacked, 1, seqnos); + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == TCP_MSS + 40U); + memset(&txcounters, 0, sizeof(txcounters)); + /* Ensure rto_end points to next byte */ + EXPECT(pcb->rto_end == seqnos[5]); + EXPECT(pcb->rto_end == pcb->snd_nxt); + /* Check cwnd was reset */ + EXPECT(pcb->cwnd == pcb->mss); + + /* Add another segment to send buffer which is outside of RTO */ + err = tcp_write(pcb, &tx_data[sent_total], TCP_MSS, TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + sent_total += TCP_MSS; + check_seqnos(pcb->unsent, 5, &seqnos[1]); + /* Ensure no new data was sent */ + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(txcounters.num_tx_bytes == 0); + EXPECT(pcb->rto_end == pcb->snd_nxt); + + /* ACK first segment */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, TCP_MSS, TCP_ACK); + test_tcp_input(p, &netif); + /* Next two retranmissions should go out, due to cwnd in slow start */ + EXPECT(txcounters.num_tx_calls == 2); + EXPECT(txcounters.num_tx_bytes == 2 * (TCP_MSS + 40U)); + memset(&txcounters, 0, sizeof(txcounters)); + check_seqnos(pcb->unacked, 2, &seqnos[1]); + check_seqnos(pcb->unsent, 3, &seqnos[3]); + /* RTO should still be marked */ + EXPECT(pcb->flags & TF_RTO); + /* cwnd should have only grown by 1 MSS */ + EXPECT(pcb->cwnd == (tcpwnd_size_t)(2 * pcb->mss)); + /* Ensure no new data was sent */ + EXPECT(pcb->rto_end == pcb->snd_nxt); + + /* ACK the next two segments */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 2*TCP_MSS, TCP_ACK); + test_tcp_input(p, &netif); + /* Final 2 retransmissions and 1 new data should go out */ + EXPECT(txcounters.num_tx_calls == 3); + EXPECT(txcounters.num_tx_bytes == 3 * (TCP_MSS + 40U)); + memset(&txcounters, 0, sizeof(txcounters)); + check_seqnos(pcb->unacked, 3, &seqnos[3]); + EXPECT(pcb->unsent == NULL); + /* RTO should still be marked */ + EXPECT(pcb->flags & TF_RTO); + /* cwnd should have only grown by 1 MSS */ + EXPECT(pcb->cwnd == (tcpwnd_size_t)(3 * pcb->mss)); + /* snd_nxt should have been advanced past rto_end */ + EXPECT(TCP_SEQ_GT(pcb->snd_nxt, pcb->rto_end)); + + /* ACK the next two segments, finishing our RTO, leaving new segment unacked */ + p = tcp_create_rx_segment(pcb, NULL, 0, 0, 2*TCP_MSS, TCP_ACK); + test_tcp_input(p, &netif); + EXPECT(!(pcb->flags & TF_RTO)); + check_seqnos(pcb->unacked, 1, &seqnos[5]); + /* We should be in ABC congestion avoidance, so no change in cwnd */ + EXPECT(pcb->cwnd == (tcpwnd_size_t)(3 * pcb->mss)); + EXPECT(pcb->cwnd >= pcb->ssthresh); + /* Ensure ABC congestion avoidance is tracking bytes acked */ + EXPECT(pcb->bytes_acked == (tcpwnd_size_t)(2 * pcb->mss)); + + /* make sure the pcb is freed */ + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + +static void test_tcp_rto_timeout_impl(int link_down) +{ + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct tcp_pcb *pcb, *cur; + err_t err; + size_t i; + const size_t max_wait_ctr = 1024 * 1024; + + /* Setup data for a single segment */ + for (i = 0; i < TCP_MSS; i++) { + tx_data[i] = (u8_t)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + memset(&counters, 0, sizeof(counters)); + + /* create and initialize the pcb */ + tcp_ticks = SEQNO1 - ISS; + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->mss = TCP_MSS; + pcb->cwnd = TCP_MSS; + + /* send our segment */ + err = tcp_write(pcb, &tx_data[0], TCP_MSS, TCP_WRITE_FLAG_COPY); + EXPECT_RET(err == ERR_OK); + err = tcp_output(pcb); + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == 1 * (TCP_MSS + 40U)); + memset(&txcounters, 0, sizeof(txcounters)); + + /* ensure no errors have been recorded */ + EXPECT(counters.err_calls == 0); + EXPECT(counters.last_err == ERR_OK); + + /* Force us into retransmisson timeout */ + for (i = 0; !(pcb->flags & TF_RTO) && i < max_wait_ctr; i++) { + test_tcp_tmr(); + } + EXPECT(i < max_wait_ctr); + + /* check first rexmit */ + EXPECT(pcb->nrtx == 1); + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == 1 * (TCP_MSS + 40U)); + + /* still no error expected */ + EXPECT(counters.err_calls == 0); + EXPECT(counters.last_err == ERR_OK); + + if (link_down) { + netif_set_link_down(&netif); + } + + /* keep running the timer till we hit our maximum RTO */ + for (i = 0; counters.last_err == ERR_OK && i < max_wait_ctr; i++) { + test_tcp_tmr(); + } + EXPECT(i < max_wait_ctr); + + /* check number of retransmissions */ + if (link_down) { + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == 1 * (TCP_MSS + 40U)); + } else { + EXPECT(txcounters.num_tx_calls == TCP_MAXRTX); + EXPECT(txcounters.num_tx_bytes == TCP_MAXRTX * (TCP_MSS + 40U)); + } + + /* check the connection (pcb) has been aborted */ + EXPECT(counters.err_calls == 1); + EXPECT(counters.last_err == ERR_ABRT); + /* check our pcb is no longer active */ + for (cur = tcp_active_pcbs; cur != NULL; cur = cur->next) { + EXPECT(cur != pcb); + } + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} + +START_TEST(test_tcp_rto_timeout) +{ + LWIP_UNUSED_ARG(_i); + test_tcp_rto_timeout_impl(0); +} +END_TEST + +START_TEST(test_tcp_rto_timeout_link_down) +{ + LWIP_UNUSED_ARG(_i); + test_tcp_rto_timeout_impl(1); +} +END_TEST + +static void test_tcp_rto_timeout_syn_sent_impl(int link_down) +{ + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct tcp_pcb *pcb, *cur; + err_t err; + size_t i; + const size_t max_wait_ctr = 1024 * 1024; + const u16_t tcp_syn_opts_len = LWIP_TCP_OPT_LENGTH(TF_SEG_OPTS_MSS|TF_SEG_OPTS_WND_SCALE|TF_SEG_OPTS_SACK_PERM|TF_SEG_OPTS_TS); + + /* Setup data for a single segment */ + for (i = 0; i < TCP_MSS; i++) { + tx_data[i] = (u8_t)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + memset(&counters, 0, sizeof(counters)); + + /* create and initialize the pcb */ + tcp_ticks = SEQNO1 - ISS; + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + err = tcp_connect(pcb, &netif.gw, 123, NULL); + EXPECT_RET(err == ERR_OK); + EXPECT_RET(pcb->state == SYN_SENT); + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == 40U + tcp_syn_opts_len); + + /* ensure no errors have been recorded */ + EXPECT(counters.err_calls == 0); + EXPECT(counters.last_err == ERR_OK); + + txcounters.num_tx_calls = 0; + txcounters.num_tx_bytes = 0; + + /* Force us into retransmisson timeout */ + for (i = 0; !(pcb->flags & TF_RTO) && i < max_wait_ctr; i++) { + test_tcp_tmr(); + } + EXPECT(i < max_wait_ctr); + + /* check first rexmit */ + EXPECT(pcb->nrtx == 1); + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == 40U + tcp_syn_opts_len); /* 40: headers; >=: options */ + + /* still no error expected */ + EXPECT(counters.err_calls == 0); + EXPECT(counters.last_err == ERR_OK); + + if (link_down) { + /* set link down and check what happens to the RTO counter */ + netif_set_link_down(&netif); + } + + /* keep running the timer till we hit our maximum RTO */ + for (i = 0; counters.last_err == ERR_OK && i < max_wait_ctr; i++) { + test_tcp_tmr(); + } + EXPECT(i < max_wait_ctr); + + /* check number of retransmissions */ + if (link_down) { + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == 40U + tcp_syn_opts_len); + } else { + EXPECT(txcounters.num_tx_calls == TCP_SYNMAXRTX); + EXPECT(txcounters.num_tx_bytes == TCP_SYNMAXRTX * (tcp_syn_opts_len + 40U)); + } + + /* check the connection (pcb) has been aborted */ + EXPECT(counters.err_calls == 1); + EXPECT(counters.last_err == ERR_ABRT); + /* check our pcb is no longer active */ + for (cur = tcp_active_pcbs; cur != NULL; cur = cur->next) { + EXPECT(cur != pcb); + } + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} + +START_TEST(test_tcp_rto_timeout_syn_sent) +{ + LWIP_UNUSED_ARG(_i); + test_tcp_rto_timeout_syn_sent_impl(0); +} +END_TEST + +START_TEST(test_tcp_rto_timeout_syn_sent_link_down) +{ + LWIP_UNUSED_ARG(_i); + test_tcp_rto_timeout_syn_sent_impl(1); +} +END_TEST + +static void test_tcp_zwp_timeout_impl(int link_down) +{ + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct tcp_pcb *pcb, *cur; + struct pbuf* p; + err_t err; + size_t i; + + /* Setup data for two segments */ + for (i = 0; i < 2*TCP_MSS; i++) { + tx_data[i] = (u8_t)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + memset(&counters, 0, sizeof(counters)); + + /* create and initialize the pcb */ + tcp_ticks = SEQNO1 - ISS; + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->mss = TCP_MSS; + pcb->cwnd = TCP_MSS; + + /* send first segment */ + err = tcp_write(pcb, &tx_data[0], TCP_MSS, TCP_WRITE_FLAG_COPY); + EXPECT(err == ERR_OK); + err = tcp_output(pcb); + EXPECT(err == ERR_OK); + + /* verify segment is in-flight */ + EXPECT(pcb->unsent == NULL); + check_seqnos(pcb->unacked, 1, seqnos); + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == 1 * (TCP_MSS + 40U)); + memset(&txcounters, 0, sizeof(txcounters)); + + /* ACK the segment and close the TX window */ + p = tcp_create_rx_segment_wnd(pcb, NULL, 0, 0, TCP_MSS, TCP_ACK, 0); + test_tcp_input(p, &netif); + EXPECT(pcb->unacked == NULL); + EXPECT(pcb->unsent == NULL); + /* send buffer empty, persist should be off */ + EXPECT(pcb->persist_backoff == 0); + EXPECT(pcb->snd_wnd == 0); + + /* send second segment, should be buffered */ + err = tcp_write(pcb, &tx_data[TCP_MSS], TCP_MSS, TCP_WRITE_FLAG_COPY); + EXPECT(err == ERR_OK); + err = tcp_output(pcb); + EXPECT(err == ERR_OK); + + /* ensure it is buffered and persist timer started */ + EXPECT(pcb->unacked == NULL); + check_seqnos(pcb->unsent, 1, &seqnos[1]); + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(txcounters.num_tx_bytes == 0); + EXPECT(pcb->persist_backoff == 1); + + /* ensure no errors have been recorded */ + EXPECT(counters.err_calls == 0); + EXPECT(counters.last_err == ERR_OK); + + /* run timer till first probe */ + EXPECT(pcb->persist_probe == 0); + while (pcb->persist_probe == 0) { + test_tcp_tmr(); + } + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == (1 + 40U)); + memset(&txcounters, 0, sizeof(txcounters)); + + /* respond to probe with remote's current SEQ, ACK, and zero-window */ + p = tcp_create_rx_segment_wnd(pcb, NULL, 0, 0, 0, TCP_ACK, 0); + test_tcp_input(p, &netif); + /* ensure zero-window is still active, but probe count reset */ + EXPECT(pcb->persist_backoff > 1); + EXPECT(pcb->persist_probe == 0); + EXPECT(pcb->snd_wnd == 0); + + /* ensure no errors have been recorded */ + EXPECT(counters.err_calls == 0); + EXPECT(counters.last_err == ERR_OK); + + if (link_down) { + netif_set_link_down(&netif); + } + + /* now run the timer till we hit our maximum probe count */ + while (counters.last_err == ERR_OK) { + test_tcp_tmr(); + } + + if (link_down) { + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(txcounters.num_tx_bytes == 0); + } else { + /* check maximum number of 1 byte probes were sent */ + EXPECT(txcounters.num_tx_calls == TCP_MAXRTX); + EXPECT(txcounters.num_tx_bytes == TCP_MAXRTX * (1 + 40U)); + } + + /* check the connection (pcb) has been aborted */ + EXPECT(counters.err_calls == 1); + EXPECT(counters.last_err == ERR_ABRT); + /* check our pcb is no longer active */ + for (cur = tcp_active_pcbs; cur != NULL; cur = cur->next) { + EXPECT(cur != pcb); + } + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} + +START_TEST(test_tcp_zwp_timeout) +{ + LWIP_UNUSED_ARG(_i); + test_tcp_zwp_timeout_impl(0); +} +END_TEST + +START_TEST(test_tcp_zwp_timeout_link_down) +{ + LWIP_UNUSED_ARG(_i); + test_tcp_zwp_timeout_impl(1); +} +END_TEST + +START_TEST(test_tcp_persist_split) +{ + struct netif netif; + struct test_tcp_txcounters txcounters; + struct test_tcp_counters counters; + struct tcp_pcb *pcb; + struct pbuf* p; + err_t err; + size_t i; + LWIP_UNUSED_ARG(_i); + + /* Setup data for four segments */ + for (i = 0; i < 4 * TCP_MSS; i++) { + tx_data[i] = (u8_t)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask); + memset(&counters, 0, sizeof(counters)); + + /* create and initialize the pcb */ + tcp_ticks = SEQNO1 - ISS; + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->mss = TCP_MSS; + /* set window to three segments */ + pcb->cwnd = 3 * TCP_MSS; + pcb->snd_wnd = 3 * TCP_MSS; + pcb->snd_wnd_max = 3 * TCP_MSS; + + /* send four segments. Fourth should stay buffered and is a 3/4 MSS segment to + get coverage on the oversized segment case */ + err = tcp_write(pcb, &tx_data[0], (3 * TCP_MSS) + (TCP_MSS - (TCP_MSS / 4)), TCP_WRITE_FLAG_COPY); + EXPECT(err == ERR_OK); + err = tcp_output(pcb); + EXPECT(err == ERR_OK); + + /* verify 3 segments are in-flight */ + EXPECT(pcb->unacked != NULL); + check_seqnos(pcb->unacked, 3, seqnos); + EXPECT(txcounters.num_tx_calls == 3); + EXPECT(txcounters.num_tx_bytes == 3 * (TCP_MSS + 40U)); + memset(&txcounters, 0, sizeof(txcounters)); + /* verify 4th segment is on unsent */ + EXPECT(pcb->unsent != NULL); + EXPECT(pcb->unsent->len == TCP_MSS - (TCP_MSS / 4)); + check_seqnos(pcb->unsent, 1, &seqnos[3]); +#if TCP_OVERSIZE + EXPECT(pcb->unsent_oversize == TCP_MSS / 4); +#if TCP_OVERSIZE_DBGCHECK + EXPECT(pcb->unsent->oversize_left == pcb->unsent_oversize); +#endif /* TCP_OVERSIZE_DBGCHECK */ +#endif /* TCP_OVERSIZE */ + + /* ACK the 3 segments and update the window to only 1/2 TCP_MSS. + 4th segment should stay on unsent because it's bigger than 1/2 MSS */ + p = tcp_create_rx_segment_wnd(pcb, NULL, 0, 0, 3 * TCP_MSS, TCP_ACK, TCP_MSS / 2); + test_tcp_input(p, &netif); + EXPECT(pcb->unacked == NULL); + EXPECT(pcb->snd_wnd == TCP_MSS / 2); + EXPECT(pcb->unsent != NULL); + check_seqnos(pcb->unsent, 1, &seqnos[3]); + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(txcounters.num_tx_bytes == 0); + /* persist timer should be started since 4th segment is stuck waiting on snd_wnd */ + EXPECT(pcb->persist_backoff == 1); + + /* ensure no errors have been recorded */ + EXPECT(counters.err_calls == 0); + EXPECT(counters.last_err == ERR_OK); + + /* call tcp_timer some more times to let persist timer count up */ + for (i = 0; i < 4; i++) { + test_tcp_tmr(); + EXPECT(txcounters.num_tx_calls == 0); + EXPECT(txcounters.num_tx_bytes == 0); + } + + /* this should be the first timer shot, which should split the + * segment and send a runt (of the remaining window size) */ + txcounters.copy_tx_packets = 1; + test_tcp_tmr(); + txcounters.copy_tx_packets = 0; + /* persist will be disabled as RTO timer takes over */ + EXPECT(pcb->persist_backoff == 0); + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == ((TCP_MSS /2) + 40U)); + /* verify 1/2 MSS segment sent, 1/4 MSS still buffered */ + EXPECT(pcb->unsent != NULL); + EXPECT(pcb->unsent->len == TCP_MSS / 4); + EXPECT(pcb->unacked != NULL); + EXPECT(pcb->unacked->len == TCP_MSS / 2); +#if TCP_OVERSIZE + /* verify there is no oversized remaining since during the + segment split, the remainder pbuf is always the exact length */ + EXPECT(pcb->unsent_oversize == 0); +#if TCP_OVERSIZE_DBGCHECK + /* Split segment already transmitted, should be at 0 */ + EXPECT(pcb->unacked->oversize_left == 0); + /* Remainder segment should match pcb value (which is 0) */ + EXPECT(pcb->unsent->oversize_left == pcb->unsent_oversize); +#endif /* TCP_OVERSIZE_DBGCHECK */ +#endif /* TCP_OVERSIZE */ + + /* verify first half segment */ + EXPECT(txcounters.tx_packets != NULL); + if (txcounters.tx_packets != NULL) { + u8_t sent[TCP_MSS / 2]; + u16_t ret; + ret = pbuf_copy_partial(txcounters.tx_packets, &sent, TCP_MSS / 2, 40U); + EXPECT(ret == TCP_MSS / 2); + EXPECT(memcmp(sent, &tx_data[3 * TCP_MSS], TCP_MSS / 2) == 0); + } + if (txcounters.tx_packets != NULL) { + pbuf_free(txcounters.tx_packets); + txcounters.tx_packets = NULL; + } + memset(&txcounters, 0, sizeof(txcounters)); + + /* ACK the half segment, leave window at half segment */ + p = tcp_create_rx_segment_wnd(pcb, NULL, 0, 0, TCP_MSS / 2, TCP_ACK, TCP_MSS / 2); + txcounters.copy_tx_packets = 1; + test_tcp_input(p, &netif); + txcounters.copy_tx_packets = 0; + /* ensure remaining segment was sent */ + EXPECT(txcounters.num_tx_calls == 1); + EXPECT(txcounters.num_tx_bytes == ((TCP_MSS / 4) + 40U)); + EXPECT(pcb->unsent == NULL); + EXPECT(pcb->unacked != NULL); + EXPECT(pcb->unacked->len == TCP_MSS / 4); + EXPECT(pcb->snd_wnd == TCP_MSS / 2); + + /* verify remainder segment */ + EXPECT(txcounters.tx_packets != NULL); + if (txcounters.tx_packets != NULL) { + u8_t sent[TCP_MSS / 4]; + u16_t ret; + ret = pbuf_copy_partial(txcounters.tx_packets, &sent, TCP_MSS / 4, 40U); + EXPECT(ret == TCP_MSS / 4); + EXPECT(memcmp(sent, &tx_data[(3 * TCP_MSS) + TCP_MSS / 2], TCP_MSS / 4) == 0); + } + if (txcounters.tx_packets != NULL) { + pbuf_free(txcounters.tx_packets); + txcounters.tx_packets = NULL; + } + + /* ensure no errors have been recorded */ + EXPECT(counters.err_calls == 0); + EXPECT(counters.last_err == ERR_OK); + + /* make sure the pcb is freed */ + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT_RET(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +tcp_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_tcp_new_abort), + TESTFUNC(test_tcp_listen_passive_open), + TESTFUNC(test_tcp_recv_inseq), + TESTFUNC(test_tcp_recv_inseq_trim), + TESTFUNC(test_tcp_passive_close), + TESTFUNC(test_tcp_active_abort), + TESTFUNC(test_tcp_malformed_header), + TESTFUNC(test_tcp_fast_retx_recover), + TESTFUNC(test_tcp_fast_rexmit_wraparound), + TESTFUNC(test_tcp_rto_rexmit_wraparound), + TESTFUNC(test_tcp_tx_full_window_lost_from_unacked), + TESTFUNC(test_tcp_tx_full_window_lost_from_unsent), + TESTFUNC(test_tcp_retx_add_to_sent), + TESTFUNC(test_tcp_rto_tracking), + TESTFUNC(test_tcp_rto_timeout), + TESTFUNC(test_tcp_rto_timeout_link_down), + TESTFUNC(test_tcp_rto_timeout_syn_sent), + TESTFUNC(test_tcp_rto_timeout_syn_sent_link_down), + TESTFUNC(test_tcp_zwp_timeout), + TESTFUNC(test_tcp_zwp_timeout_link_down), + TESTFUNC(test_tcp_persist_split) + }; + return create_suite("TCP", tests, sizeof(tests)/sizeof(testfunc), tcp_setup, tcp_teardown); +} diff --git a/middleware/lwip/test/unit/tcp/test_tcp.h b/middleware/lwip/test/unit/tcp/test_tcp.h new file mode 100644 index 0000000..f28ee56 --- /dev/null +++ b/middleware/lwip/test/unit/tcp/test_tcp.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_TCP_H +#define LWIP_HDR_TEST_TCP_H + +#include "../lwip_check.h" + +Suite *tcp_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/tcp/test_tcp_oos.c b/middleware/lwip/test/unit/tcp/test_tcp_oos.c new file mode 100644 index 0000000..a190e7d --- /dev/null +++ b/middleware/lwip/test/unit/tcp/test_tcp_oos.c @@ -0,0 +1,1018 @@ +#include "test_tcp_oos.h" + +#include "lwip/priv/tcp_priv.h" +#include "lwip/stats.h" +#include "tcp_helper.h" + +#if !LWIP_STATS || !TCP_STATS || !MEMP_STATS +#error "This tests needs TCP- and MEMP-statistics enabled" +#endif +#if !TCP_QUEUE_OOSEQ +#error "This tests needs TCP_QUEUE_OOSEQ enabled" +#endif + +/** CHECK_SEGMENTS_ON_OOSEQ: + * 1: check count, seqno and len of segments on pcb->ooseq (strict) + * 0: only check that bytes are received in correct order (less strict) */ +#define CHECK_SEGMENTS_ON_OOSEQ 1 + +#if CHECK_SEGMENTS_ON_OOSEQ +#define EXPECT_OOSEQ(x) EXPECT(x) +#else +#define EXPECT_OOSEQ(x) +#endif + +/* helper functions */ + +/** Get the numbers of segments on the ooseq list */ +static int tcp_oos_count(struct tcp_pcb* pcb) +{ + int num = 0; + struct tcp_seg* seg = pcb->ooseq; + while(seg != NULL) { + num++; + seg = seg->next; + } + return num; +} + +#if TCP_OOSEQ_MAX_PBUFS && (TCP_OOSEQ_MAX_PBUFS < ((TCP_WND / TCP_MSS) + 1)) && (PBUF_POOL_BUFSIZE >= (TCP_MSS + PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)) +/** Get the numbers of pbufs on the ooseq list */ +static int tcp_oos_pbuf_count(struct tcp_pcb* pcb) +{ + int num = 0; + struct tcp_seg* seg = pcb->ooseq; + while(seg != NULL) { + num += pbuf_clen(seg->p); + seg = seg->next; + } + return num; +} +#endif + +/** Get the seqno of a segment (by index) on the ooseq list + * + * @param pcb the pcb to check for ooseq segments + * @param seg_index index of the segment on the ooseq list + * @return seqno of the segment + */ +static u32_t +tcp_oos_seg_seqno(struct tcp_pcb* pcb, int seg_index) +{ + int num = 0; + struct tcp_seg* seg = pcb->ooseq; + + /* then check the actual segment */ + while(seg != NULL) { + if(num == seg_index) { + return seg->tcphdr->seqno; + } + num++; + seg = seg->next; + } + fail(); + return 0; +} + +/** Get the tcplen (datalen + SYN/FIN) of a segment (by index) on the ooseq list + * + * @param pcb the pcb to check for ooseq segments + * @param seg_index index of the segment on the ooseq list + * @return tcplen of the segment + */ +static int +tcp_oos_seg_tcplen(struct tcp_pcb* pcb, int seg_index) +{ + int num = 0; + struct tcp_seg* seg = pcb->ooseq; + + /* then check the actual segment */ + while(seg != NULL) { + if(num == seg_index) { + return TCP_TCPLEN(seg); + } + num++; + seg = seg->next; + } + fail(); + return -1; +} + +/** Get the tcplen (datalen + SYN/FIN) of all segments on the ooseq list + * + * @param pcb the pcb to check for ooseq segments + * @return tcplen of all segment + */ +static int +tcp_oos_tcplen(struct tcp_pcb* pcb) +{ + int len = 0; + struct tcp_seg* seg = pcb->ooseq; + + /* then check the actual segment */ + while(seg != NULL) { + len += TCP_TCPLEN(seg); + seg = seg->next; + } + return len; +} + +/* Setup/teardown functions */ +static struct netif *old_netif_list; +static struct netif *old_netif_default; + +static void +tcp_oos_setup(void) +{ + old_netif_list = netif_list; + old_netif_default = netif_default; + netif_list = NULL; + netif_default = NULL; + tcp_remove_all(); + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +tcp_oos_teardown(void) +{ + netif_list = NULL; + netif_default = NULL; + tcp_remove_all(); + /* restore netif_list for next tests (e.g. loopif) */ + netif_list = old_netif_list; + netif_default = old_netif_default; + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + + + +/* Test functions */ + +/** create multiple segments and pass them to tcp_input in a wrong + * order to see if ooseq-caching works correctly + * FIN is received in out-of-sequence segments only */ +START_TEST(test_tcp_recv_ooseq_FIN_OOSEQ) +{ + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf *p_8_9, *p_4_8, *p_4_10, *p_2_14, *p_fin, *pinseq; + char data[] = { + 1, 2, 3, 4, + 5, 6, 7, 8, + 9, 10, 11, 12, + 13, 14, 15, 16}; + u16_t data_len; + struct netif netif; + LWIP_UNUSED_ARG(_i); + + /* initialize local vars */ + test_tcp_init_netif(&netif, NULL, &test_local_ip, &test_netmask); + data_len = sizeof(data); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = data_len; + counters.expected_data = data; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + + /* create segments */ + /* pinseq is sent as last segment! */ + pinseq = tcp_create_rx_segment(pcb, &data[0], 4, 0, 0, TCP_ACK); + /* p1: 8 bytes before FIN */ + /* seqno: 8..16 */ + p_8_9 = tcp_create_rx_segment(pcb, &data[8], 8, 8, 0, TCP_ACK|TCP_FIN); + /* p2: 4 bytes before p1, including the first 4 bytes of p1 (partly duplicate) */ + /* seqno: 4..11 */ + p_4_8 = tcp_create_rx_segment(pcb, &data[4], 8, 4, 0, TCP_ACK); + /* p3: same as p2 but 2 bytes longer */ + /* seqno: 4..13 */ + p_4_10 = tcp_create_rx_segment(pcb, &data[4], 10, 4, 0, TCP_ACK); + /* p4: 14 bytes before FIN, includes data from p1 and p2, plus partly from pinseq */ + /* seqno: 2..15 */ + p_2_14 = tcp_create_rx_segment(pcb, &data[2], 14, 2, 0, TCP_ACK); + /* FIN, seqno 16 */ + p_fin = tcp_create_rx_segment(pcb, NULL, 0,16, 0, TCP_ACK|TCP_FIN); + EXPECT(pinseq != NULL); + EXPECT(p_8_9 != NULL); + EXPECT(p_4_8 != NULL); + EXPECT(p_4_10 != NULL); + EXPECT(p_2_14 != NULL); + EXPECT(p_fin != NULL); + if ((pinseq != NULL) && (p_8_9 != NULL) && (p_4_8 != NULL) && (p_4_10 != NULL) && (p_2_14 != NULL) && (p_fin != NULL)) { + /* pass the segment to tcp_input */ + test_tcp_input(p_8_9, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 8); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 9); /* includes FIN */ + + /* pass the segment to tcp_input */ + test_tcp_input(p_4_8, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 2); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 4); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 4); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 1) == 8); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 1) == 9); /* includes FIN */ + + /* pass the segment to tcp_input */ + test_tcp_input(p_4_10, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* ooseq queue: unchanged */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 2); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 4); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 4); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 1) == 8); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 1) == 9); /* includes FIN */ + + /* pass the segment to tcp_input */ + test_tcp_input(p_2_14, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 2); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 15); /* includes FIN */ + + /* pass the segment to tcp_input */ + test_tcp_input(p_fin, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* ooseq queue: unchanged */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 2); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 15); /* includes FIN */ + + /* pass the segment to tcp_input */ + test_tcp_input(pinseq, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 1); + EXPECT(counters.recv_calls == 1); + EXPECT(counters.recved_bytes == data_len); + EXPECT(counters.err_calls == 0); + EXPECT(pcb->ooseq == NULL); + } + + /* make sure the pcb is freed */ + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + + +/** create multiple segments and pass them to tcp_input in a wrong + * order to see if ooseq-caching works correctly + * FIN is received IN-SEQUENCE at the end */ +START_TEST(test_tcp_recv_ooseq_FIN_INSEQ) +{ + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf *p_1_2, *p_4_8, *p_3_11, *p_2_12, *p_15_1, *p_15_1a, *pinseq, *pinseqFIN; + char data[] = { + 1, 2, 3, 4, + 5, 6, 7, 8, + 9, 10, 11, 12, + 13, 14, 15, 16}; + u16_t data_len; + struct netif netif; + LWIP_UNUSED_ARG(_i); + + /* initialize local vars */ + test_tcp_init_netif(&netif, NULL, &test_local_ip, &test_netmask); + data_len = sizeof(data); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = data_len; + counters.expected_data = data; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + + /* create segments */ + /* p1: 7 bytes - 2 before FIN */ + /* seqno: 1..2 */ + p_1_2 = tcp_create_rx_segment(pcb, &data[1], 2, 1, 0, TCP_ACK); + /* p2: 4 bytes before p1, including the first 4 bytes of p1 (partly duplicate) */ + /* seqno: 4..11 */ + p_4_8 = tcp_create_rx_segment(pcb, &data[4], 8, 4, 0, TCP_ACK); + /* p3: same as p2 but 2 bytes longer and one byte more at the front */ + /* seqno: 3..13 */ + p_3_11 = tcp_create_rx_segment(pcb, &data[3], 11, 3, 0, TCP_ACK); + /* p4: 13 bytes - 2 before FIN - should be ignored as contained in p1 and p3 */ + /* seqno: 2..13 */ + p_2_12 = tcp_create_rx_segment(pcb, &data[2], 12, 2, 0, TCP_ACK); + /* pinseq is the first segment that is held back to create ooseq! */ + /* seqno: 0..3 */ + pinseq = tcp_create_rx_segment(pcb, &data[0], 4, 0, 0, TCP_ACK); + /* p5: last byte before FIN */ + /* seqno: 15 */ + p_15_1 = tcp_create_rx_segment(pcb, &data[15], 1, 15, 0, TCP_ACK); + /* p6: same as p5, should be ignored */ + p_15_1a= tcp_create_rx_segment(pcb, &data[15], 1, 15, 0, TCP_ACK); + /* pinseqFIN: last 2 bytes plus FIN */ + /* only segment containing seqno 14 and FIN */ + pinseqFIN = tcp_create_rx_segment(pcb, &data[14], 2, 14, 0, TCP_ACK|TCP_FIN); + EXPECT(pinseq != NULL); + EXPECT(p_1_2 != NULL); + EXPECT(p_4_8 != NULL); + EXPECT(p_3_11 != NULL); + EXPECT(p_2_12 != NULL); + EXPECT(p_15_1 != NULL); + EXPECT(p_15_1a != NULL); + EXPECT(pinseqFIN != NULL); + if ((pinseq != NULL) && (p_1_2 != NULL) && (p_4_8 != NULL) && (p_3_11 != NULL) && (p_2_12 != NULL) + && (p_15_1 != NULL) && (p_15_1a != NULL) && (pinseqFIN != NULL)) { + /* pass the segment to tcp_input */ + test_tcp_input(p_1_2, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 1); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 2); + + /* pass the segment to tcp_input */ + test_tcp_input(p_4_8, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 2); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 1); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 2); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 1) == 4); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 1) == 8); + + /* pass the segment to tcp_input */ + test_tcp_input(p_3_11, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 2); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 1); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 2); + /* p_3_11 has removed p_4_8 from ooseq */ + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 1) == 3); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 1) == 11); + + /* pass the segment to tcp_input */ + test_tcp_input(p_2_12, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 2); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 1); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 1); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 1) == 2); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 1) == 12); + + /* pass the segment to tcp_input */ + test_tcp_input(pinseq, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 1); + EXPECT(counters.recved_bytes == 14); + EXPECT(counters.err_calls == 0); + EXPECT(pcb->ooseq == NULL); + + /* pass the segment to tcp_input */ + test_tcp_input(p_15_1, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 1); + EXPECT(counters.recved_bytes == 14); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 15); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 1); + + /* pass the segment to tcp_input */ + test_tcp_input(p_15_1a, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 1); + EXPECT(counters.recved_bytes == 14); + EXPECT(counters.err_calls == 0); + /* check ooseq queue: unchanged */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); + EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 15); + EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 1); + + /* pass the segment to tcp_input */ + test_tcp_input(pinseqFIN, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 1); + EXPECT(counters.recv_calls == 2); + EXPECT(counters.recved_bytes == data_len); + EXPECT(counters.err_calls == 0); + EXPECT(pcb->ooseq == NULL); + } + + /* make sure the pcb is freed */ + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} +END_TEST + +static char data_full_wnd[TCP_WND + TCP_MSS]; + +/** create multiple segments and pass them to tcp_input with the first segment missing + * to simulate overruning the rxwin with ooseq queueing enabled */ +START_TEST(test_tcp_recv_ooseq_overrun_rxwin) +{ +#if !TCP_OOSEQ_MAX_BYTES && !TCP_OOSEQ_MAX_PBUFS + int i, k; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf *pinseq, *p_ovr; + struct netif netif; + int datalen = 0; + int datalen2; + + for(i = 0; i < (int)sizeof(data_full_wnd); i++) { + data_full_wnd[i] = (char)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, NULL, &test_local_ip, &test_netmask); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = TCP_WND; + counters.expected_data = data_full_wnd; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->rcv_nxt = 0x8000; + + /* create segments */ + /* pinseq is sent as last segment! */ + pinseq = tcp_create_rx_segment(pcb, &data_full_wnd[0], TCP_MSS, 0, 0, TCP_ACK); + + for(i = TCP_MSS, k = 0; i < TCP_WND; i += TCP_MSS, k++) { + int count, expected_datalen; + struct pbuf *p = tcp_create_rx_segment(pcb, &data_full_wnd[TCP_MSS*(k+1)], + TCP_MSS, TCP_MSS*(k+1), 0, TCP_ACK); + EXPECT_RET(p != NULL); + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + count = tcp_oos_count(pcb); + EXPECT_OOSEQ(count == k+1); + datalen = tcp_oos_tcplen(pcb); + if (i + TCP_MSS < TCP_WND) { + expected_datalen = (k+1)*TCP_MSS; + } else { + expected_datalen = TCP_WND - TCP_MSS; + } + if (datalen != expected_datalen) { + EXPECT_OOSEQ(datalen == expected_datalen); + } + } + + /* pass in one more segment, cleary overrunning the rxwin */ + p_ovr = tcp_create_rx_segment(pcb, &data_full_wnd[TCP_MSS*(k+1)], TCP_MSS, TCP_MSS*(k+1), 0, TCP_ACK); + EXPECT_RET(p_ovr != NULL); + /* pass the segment to tcp_input */ + test_tcp_input(p_ovr, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == k); + datalen2 = tcp_oos_tcplen(pcb); + EXPECT_OOSEQ(datalen == datalen2); + + /* now pass inseq */ + test_tcp_input(pinseq, &netif); + EXPECT(pcb->ooseq == NULL); + + /* make sure the pcb is freed */ + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +#endif /* !TCP_OOSEQ_MAX_BYTES && !TCP_OOSEQ_MAX_PBUFS */ + LWIP_UNUSED_ARG(_i); +} +END_TEST + +/** similar to above test, except seqno starts near the max rxwin */ +START_TEST(test_tcp_recv_ooseq_overrun_rxwin_edge) +{ +#if !TCP_OOSEQ_MAX_BYTES && !TCP_OOSEQ_MAX_PBUFS + int i, k; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf *pinseq, *p_ovr; + struct netif netif; + int datalen = 0; + int datalen2; + + for(i = 0; i < (int)sizeof(data_full_wnd); i++) { + data_full_wnd[i] = (char)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, NULL, &test_local_ip, &test_netmask); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = TCP_WND; + counters.expected_data = data_full_wnd; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->rcv_nxt = 0xffffffff - (TCP_WND / 2); + + /* create segments */ + /* pinseq is sent as last segment! */ + pinseq = tcp_create_rx_segment(pcb, &data_full_wnd[0], TCP_MSS, 0, 0, TCP_ACK); + + for(i = TCP_MSS, k = 0; i < TCP_WND; i += TCP_MSS, k++) { + int count, expected_datalen; + struct pbuf *p = tcp_create_rx_segment(pcb, &data_full_wnd[TCP_MSS*(k+1)], + TCP_MSS, TCP_MSS*(k+1), 0, TCP_ACK); + EXPECT_RET(p != NULL); + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + count = tcp_oos_count(pcb); + EXPECT_OOSEQ(count == k+1); + datalen = tcp_oos_tcplen(pcb); + if (i + TCP_MSS < TCP_WND) { + expected_datalen = (k+1)*TCP_MSS; + } else { + expected_datalen = TCP_WND - TCP_MSS; + } + if (datalen != expected_datalen) { + EXPECT_OOSEQ(datalen == expected_datalen); + } + } + + /* pass in one more segment, cleary overrunning the rxwin */ + p_ovr = tcp_create_rx_segment(pcb, &data_full_wnd[TCP_MSS*(k+1)], TCP_MSS, TCP_MSS*(k+1), 0, TCP_ACK); + EXPECT_RET(p_ovr != NULL); + /* pass the segment to tcp_input */ + test_tcp_input(p_ovr, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == k); + datalen2 = tcp_oos_tcplen(pcb); + EXPECT_OOSEQ(datalen == datalen2); + + /* now pass inseq */ + test_tcp_input(pinseq, &netif); + EXPECT(pcb->ooseq == NULL); + + /* make sure the pcb is freed */ + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +#endif /* !TCP_OOSEQ_MAX_BYTES && !TCP_OOSEQ_MAX_PBUFS */ + LWIP_UNUSED_ARG(_i); +} +END_TEST + +START_TEST(test_tcp_recv_ooseq_max_bytes) +{ +#if TCP_OOSEQ_MAX_BYTES && (TCP_OOSEQ_MAX_BYTES < (TCP_WND + 1)) && (PBUF_POOL_BUFSIZE >= (TCP_MSS + PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)) + int i, k; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf *p_ovr; + struct netif netif; + int datalen = 0; + int datalen2; + + for(i = 0; i < sizeof(data_full_wnd); i++) { + data_full_wnd[i] = (char)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, NULL, &test_local_ip, &test_netmask); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = TCP_WND; + counters.expected_data = data_full_wnd; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->rcv_nxt = 0x8000; + + /* don't 'recv' the first segment (1 byte) so that all other segments will be ooseq */ + + /* create segments and 'recv' them */ + for(k = 1, i = 1; k < TCP_OOSEQ_MAX_BYTES; k += TCP_MSS, i++) { + int count; + struct pbuf *p = tcp_create_rx_segment(pcb, &data_full_wnd[k], + TCP_MSS, k, 0, TCP_ACK); + EXPECT_RET(p != NULL); + EXPECT_RET(p->next == NULL); + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + count = tcp_oos_pbuf_count(pcb); + EXPECT_OOSEQ(count == i); + datalen = tcp_oos_tcplen(pcb); + EXPECT_OOSEQ(datalen == (i * TCP_MSS)); + } + + /* pass in one more segment, overrunning the limit */ + p_ovr = tcp_create_rx_segment(pcb, &data_full_wnd[k+1], 1, k+1, 0, TCP_ACK); + EXPECT_RET(p_ovr != NULL); + /* pass the segment to tcp_input */ + test_tcp_input(p_ovr, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue (ensure the new segment was not accepted) */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == (i-1)); + datalen2 = tcp_oos_tcplen(pcb); + EXPECT_OOSEQ(datalen2 == ((i-1) * TCP_MSS)); + + /* make sure the pcb is freed */ + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +#endif /* TCP_OOSEQ_MAX_BYTES && (TCP_OOSEQ_MAX_BYTES < (TCP_WND + 1)) && (PBUF_POOL_BUFSIZE >= (TCP_MSS + PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)) */ + LWIP_UNUSED_ARG(_i); +} +END_TEST + +START_TEST(test_tcp_recv_ooseq_max_pbufs) +{ +#if TCP_OOSEQ_MAX_PBUFS && (TCP_OOSEQ_MAX_PBUFS < ((TCP_WND / TCP_MSS) + 1)) && (PBUF_POOL_BUFSIZE >= (TCP_MSS + PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)) + int i; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf *p_ovr; + struct netif netif; + int datalen = 0; + int datalen2; + + for(i = 0; i < sizeof(data_full_wnd); i++) { + data_full_wnd[i] = (char)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, NULL, &test_local_ip, &test_netmask); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = TCP_WND; + counters.expected_data = data_full_wnd; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &local_ip, &remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->rcv_nxt = 0x8000; + + /* don't 'recv' the first segment (1 byte) so that all other segments will be ooseq */ + + /* create segments and 'recv' them */ + for(i = 1; i <= TCP_OOSEQ_MAX_PBUFS; i++) { + int count; + struct pbuf *p = tcp_create_rx_segment(pcb, &data_full_wnd[i], + 1, i, 0, TCP_ACK); + EXPECT_RET(p != NULL); + EXPECT_RET(p->next == NULL); + /* pass the segment to tcp_input */ + test_tcp_input(p, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue */ + count = tcp_oos_pbuf_count(pcb); + EXPECT_OOSEQ(count == i); + datalen = tcp_oos_tcplen(pcb); + EXPECT_OOSEQ(datalen == i); + } + + /* pass in one more segment, overrunning the limit */ + p_ovr = tcp_create_rx_segment(pcb, &data_full_wnd[i+1], 1, i+1, 0, TCP_ACK); + EXPECT_RET(p_ovr != NULL); + /* pass the segment to tcp_input */ + test_tcp_input(p_ovr, &netif); + /* check if counters are as expected */ + EXPECT(counters.close_calls == 0); + EXPECT(counters.recv_calls == 0); + EXPECT(counters.recved_bytes == 0); + EXPECT(counters.err_calls == 0); + /* check ooseq queue (ensure the new segment was not accepted) */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == (i-1)); + datalen2 = tcp_oos_tcplen(pcb); + EXPECT_OOSEQ(datalen2 == (i-1)); + + /* make sure the pcb is freed */ + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +#endif /* TCP_OOSEQ_MAX_PBUFS && (TCP_OOSEQ_MAX_BYTES < (TCP_WND + 1)) && (PBUF_POOL_BUFSIZE >= (TCP_MSS + PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)) */ + LWIP_UNUSED_ARG(_i); +} +END_TEST + +static void +check_rx_counters(struct tcp_pcb *pcb, struct test_tcp_counters *counters, u32_t exp_close_calls, u32_t exp_rx_calls, + u32_t exp_rx_bytes, u32_t exp_err_calls, int exp_oos_count, int exp_oos_len) +{ + int oos_len; + EXPECT(counters->close_calls == exp_close_calls); + EXPECT(counters->recv_calls == exp_rx_calls); + EXPECT(counters->recved_bytes == exp_rx_bytes); + EXPECT(counters->err_calls == exp_err_calls); + /* check that pbuf is queued in ooseq */ + EXPECT_OOSEQ(tcp_oos_count(pcb) == exp_oos_count); + oos_len = tcp_oos_tcplen(pcb); + EXPECT_OOSEQ(exp_oos_len == oos_len); +} + +/* this test uses 4 packets: + * - data (len=TCP_MSS) + * - FIN + * - data after FIN (len=1) (invalid) + * - 2nd FIN (invalid) + * + * the parameter 'delay_packet' is a bitmask that choses which on these packets is ooseq + */ +static void test_tcp_recv_ooseq_double_FINs(int delay_packet) +{ + int i, k; + struct test_tcp_counters counters; + struct tcp_pcb* pcb; + struct pbuf *p_normal_fin, *p_data_after_fin, *p, *p_2nd_fin_ooseq; + struct netif netif; + u32_t exp_rx_calls = 0, exp_rx_bytes = 0, exp_close_calls = 0, exp_oos_pbufs = 0, exp_oos_tcplen = 0; + int first_dropped = 0xff; + + for(i = 0; i < (int)sizeof(data_full_wnd); i++) { + data_full_wnd[i] = (char)i; + } + + /* initialize local vars */ + test_tcp_init_netif(&netif, NULL, &test_local_ip, &test_netmask); + /* initialize counter struct */ + memset(&counters, 0, sizeof(counters)); + counters.expected_data_len = TCP_WND; + counters.expected_data = data_full_wnd; + + /* create and initialize the pcb */ + pcb = test_tcp_new_counters_pcb(&counters); + EXPECT_RET(pcb != NULL); + tcp_set_state(pcb, ESTABLISHED, &test_local_ip, &test_remote_ip, TEST_LOCAL_PORT, TEST_REMOTE_PORT); + pcb->rcv_nxt = 0x8000; + + /* create segments */ + p = tcp_create_rx_segment(pcb, &data_full_wnd[0], TCP_MSS, 0, 0, TCP_ACK); + p_normal_fin = tcp_create_rx_segment(pcb, NULL, 0, TCP_MSS, 0, TCP_ACK|TCP_FIN); + k = 1; + p_data_after_fin = tcp_create_rx_segment(pcb, &data_full_wnd[TCP_MSS+1], k, TCP_MSS+1, 0, TCP_ACK); + p_2nd_fin_ooseq = tcp_create_rx_segment(pcb, NULL, 0, TCP_MSS+1+k, 0, TCP_ACK|TCP_FIN); + + if(delay_packet & 1) { + /* drop normal data */ + first_dropped = 1; + } else { + /* send normal data */ + test_tcp_input(p, &netif); + exp_rx_calls++; + exp_rx_bytes += TCP_MSS; + } + /* check if counters are as expected */ + check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); + + if(delay_packet & 2) { + /* drop FIN */ + if(first_dropped > 2) { + first_dropped = 2; + } + } else { + /* send FIN */ + test_tcp_input(p_normal_fin, &netif); + if (first_dropped < 2) { + /* already dropped packets, this one is ooseq */ + exp_oos_pbufs++; + exp_oos_tcplen++; + } else { + /* inseq */ + exp_close_calls++; + } + } + /* check if counters are as expected */ + check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); + + if(delay_packet & 4) { + /* drop data-after-FIN */ + if(first_dropped > 3) { + first_dropped = 3; + } + } else { + /* send data-after-FIN */ + test_tcp_input(p_data_after_fin, &netif); + if (first_dropped < 3) { + /* already dropped packets, this one is ooseq */ + if (delay_packet & 2) { + /* correct FIN was ooseq */ + exp_oos_pbufs++; + exp_oos_tcplen += k; + } + } else { + /* inseq: no change */ + } + } + /* check if counters are as expected */ + check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); + + if(delay_packet & 8) { + /* drop 2nd-FIN */ + if(first_dropped > 4) { + first_dropped = 4; + } + } else { + /* send 2nd-FIN */ + test_tcp_input(p_2nd_fin_ooseq, &netif); + if (first_dropped < 3) { + /* already dropped packets, this one is ooseq */ + if (delay_packet & 2) { + /* correct FIN was ooseq */ + exp_oos_pbufs++; + exp_oos_tcplen++; + } + } else { + /* inseq: no change */ + } + } + /* check if counters are as expected */ + check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); + + if(delay_packet & 1) { + /* dropped normal data before */ + test_tcp_input(p, &netif); + exp_rx_calls++; + exp_rx_bytes += TCP_MSS; + if((delay_packet & 2) == 0) { + /* normal FIN was NOT delayed */ + exp_close_calls++; + exp_oos_pbufs = exp_oos_tcplen = 0; + } + } + /* check if counters are as expected */ + check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); + + if(delay_packet & 2) { + /* dropped normal FIN before */ + test_tcp_input(p_normal_fin, &netif); + exp_close_calls++; + exp_oos_pbufs = exp_oos_tcplen = 0; + } + /* check if counters are as expected */ + check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); + + if(delay_packet & 4) { + /* dropped data-after-FIN before */ + test_tcp_input(p_data_after_fin, &netif); + } + /* check if counters are as expected */ + check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); + + if(delay_packet & 8) { + /* dropped 2nd-FIN before */ + test_tcp_input(p_2nd_fin_ooseq, &netif); + } + /* check if counters are as expected */ + check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); + + /* check that ooseq data has been dumped */ + EXPECT(pcb->ooseq == NULL); + + /* make sure the pcb is freed */ + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 1); + tcp_abort(pcb); + EXPECT(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0); +} + +/** create multiple segments and pass them to tcp_input with the first segment missing + * to simulate overruning the rxwin with ooseq queueing enabled */ +#define FIN_TEST(name, num) \ + START_TEST(name) \ + { \ + LWIP_UNUSED_ARG(_i); \ + test_tcp_recv_ooseq_double_FINs(num); \ + } \ + END_TEST +FIN_TEST(test_tcp_recv_ooseq_double_FIN_0, 0) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_1, 1) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_2, 2) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_3, 3) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_4, 4) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_5, 5) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_6, 6) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_7, 7) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_8, 8) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_9, 9) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_10, 10) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_11, 11) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_12, 12) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_13, 13) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_14, 14) +FIN_TEST(test_tcp_recv_ooseq_double_FIN_15, 15) + + +/** Create the suite including all tests for this module */ +Suite * +tcp_oos_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_tcp_recv_ooseq_FIN_OOSEQ), + TESTFUNC(test_tcp_recv_ooseq_FIN_INSEQ), + TESTFUNC(test_tcp_recv_ooseq_overrun_rxwin), + TESTFUNC(test_tcp_recv_ooseq_overrun_rxwin_edge), + TESTFUNC(test_tcp_recv_ooseq_max_bytes), + TESTFUNC(test_tcp_recv_ooseq_max_pbufs), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_0), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_1), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_2), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_3), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_4), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_5), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_6), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_7), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_8), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_9), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_10), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_11), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_12), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_13), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_14), + TESTFUNC(test_tcp_recv_ooseq_double_FIN_15) + }; + return create_suite("TCP_OOS", tests, sizeof(tests)/sizeof(testfunc), tcp_oos_setup, tcp_oos_teardown); +} diff --git a/middleware/lwip/test/unit/tcp/test_tcp_oos.h b/middleware/lwip/test/unit/tcp/test_tcp_oos.h new file mode 100644 index 0000000..5b82013 --- /dev/null +++ b/middleware/lwip/test/unit/tcp/test_tcp_oos.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_TCP_OOS_H +#define LWIP_HDR_TEST_TCP_OOS_H + +#include "../lwip_check.h" + +Suite *tcp_oos_suite(void); + +#endif diff --git a/middleware/lwip/test/unit/udp/test_udp.c b/middleware/lwip/test/unit/udp/test_udp.c new file mode 100644 index 0000000..a9a6b25 --- /dev/null +++ b/middleware/lwip/test/unit/udp/test_udp.c @@ -0,0 +1,472 @@ +#include "test_udp.h" + +#include "lwip/udp.h" +#include "lwip/stats.h" +#include "lwip/inet_chksum.h" + +#if !LWIP_STATS || !UDP_STATS || !MEMP_STATS +#error "This tests needs UDP- and MEMP-statistics enabled" +#endif + +struct test_udp_rxdata { + u32_t rx_cnt; + u32_t rx_bytes; + struct udp_pcb *pcb; +}; + +static struct netif test_netif1, test_netif2; +static ip4_addr_t test_gw1, test_ipaddr1, test_netmask1; +static ip4_addr_t test_gw2, test_ipaddr2, test_netmask2; +static int output_ctr, linkoutput_ctr; + +/* Helper functions */ +static void +udp_remove_all(void) +{ + struct udp_pcb *pcb = udp_pcbs; + struct udp_pcb *pcb2; + + while(pcb != NULL) { + pcb2 = pcb; + pcb = pcb->next; + udp_remove(pcb2); + } + fail_unless(MEMP_STATS_GET(used, MEMP_UDP_PCB) == 0); +} + +static err_t +default_netif_output(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr) +{ + fail_unless((netif == &test_netif1) || (netif == &test_netif2)); + fail_unless(p != NULL); + fail_unless(ipaddr != NULL); + output_ctr++; + return ERR_OK; +} + +static err_t +default_netif_linkoutput(struct netif *netif, struct pbuf *p) +{ + fail_unless((netif == &test_netif1) || (netif == &test_netif2)); + fail_unless(p != NULL); + linkoutput_ctr++; + return ERR_OK; +} + +static err_t +default_netif_init(struct netif *netif) +{ + fail_unless(netif != NULL); + netif->output = default_netif_output; + netif->linkoutput = default_netif_linkoutput; + netif->mtu = 1500; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP; + netif->hwaddr_len = 6; + return ERR_OK; +} + +static void +default_netif_add(void) +{ + struct netif *n; + +#if LWIP_HAVE_LOOPIF + fail_unless(netif_list != NULL); /* the loopif */ + fail_unless(netif_list->next == NULL); +#else + fail_unless(netif_list == NULL); +#endif + fail_unless(netif_default == NULL); + + IP4_ADDR(&test_ipaddr1, 192,168,0,1); + IP4_ADDR(&test_netmask1, 255,255,255,0); + IP4_ADDR(&test_gw1, 192,168,0,254); + n = netif_add(&test_netif1, &test_ipaddr1, &test_netmask1, + &test_gw1, NULL, default_netif_init, NULL); + fail_unless(n == &test_netif1); + + IP4_ADDR(&test_ipaddr2, 192,168,1,1); + IP4_ADDR(&test_netmask2, 255,255,255,0); + IP4_ADDR(&test_gw2, 192,168,1,254); + n = netif_add(&test_netif2, &test_ipaddr2, &test_netmask2, + &test_gw2, NULL, default_netif_init, NULL); + fail_unless(n == &test_netif2); + + netif_set_default(&test_netif1); + netif_set_up(&test_netif1); + netif_set_up(&test_netif2); +} + +static void +default_netif_remove(void) +{ + fail_unless(netif_default == &test_netif1); + netif_remove(&test_netif1); + netif_remove(&test_netif2); + fail_unless(netif_default == NULL); +#if LWIP_HAVE_LOOPIF + fail_unless(netif_list != NULL); /* the loopif */ + fail_unless(netif_list->next == NULL); +#else + fail_unless(netif_list == NULL); +#endif +} +/* Setups/teardown functions */ + +static void +udp_setup(void) +{ + udp_remove_all(); + default_netif_add(); + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + +static void +udp_teardown(void) +{ + udp_remove_all(); + default_netif_remove(); + lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT)); +} + + +/* Test functions */ + +START_TEST(test_udp_new_remove) +{ + struct udp_pcb* pcb; + LWIP_UNUSED_ARG(_i); + + fail_unless(MEMP_STATS_GET(used, MEMP_UDP_PCB) == 0); + + pcb = udp_new(); + fail_unless(pcb != NULL); + if (pcb != NULL) { + fail_unless(MEMP_STATS_GET(used, MEMP_UDP_PCB) == 1); + udp_remove(pcb); + fail_unless(MEMP_STATS_GET(used, MEMP_UDP_PCB) == 0); + } +} +END_TEST + +static void test_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, + const ip_addr_t *addr, u16_t port) +{ + struct test_udp_rxdata *ctr = (struct test_udp_rxdata *)arg; + + LWIP_UNUSED_ARG(addr); + LWIP_UNUSED_ARG(port); + + fail_unless(arg != NULL); + fail_unless(ctr->pcb == pcb); + + ctr->rx_cnt++; + ctr->rx_bytes += p->tot_len; + + if (p != NULL) { + pbuf_free(p); + } +} + +static struct pbuf * +test_udp_create_test_packet(u16_t length, u16_t port, u32_t dst_addr) +{ + err_t err; + u8_t ret; + struct udp_hdr *uh; + struct ip_hdr *ih; + struct pbuf *p; + const u8_t test_data[16] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf}; + + p = pbuf_alloc(PBUF_TRANSPORT, length, PBUF_POOL); + fail_unless(p != NULL); + if (p == NULL) { + return NULL; + } + fail_unless(p->next == NULL); + err = pbuf_take(p, test_data, length); + fail_unless(err == ERR_OK); + + /* add UDP header */ + ret = pbuf_add_header(p, sizeof(struct udp_hdr)); + fail_unless(!ret); + uh = (struct udp_hdr *)p->payload; + uh->chksum = 0; + uh->dest = uh->src = lwip_htons(port); + uh->len = lwip_htons(p->tot_len); + /* add IPv4 header */ + ret = pbuf_add_header(p, sizeof(struct ip_hdr)); + fail_unless(!ret); + ih = (struct ip_hdr *)p->payload; + memset(ih, 0, sizeof(*ih)); + ih->dest.addr = dst_addr; + ih->_len = lwip_htons(p->tot_len); + ih->_ttl = 32; + ih->_proto = IP_PROTO_UDP; + IPH_VHL_SET(ih, 4, sizeof(struct ip_hdr) / 4); + IPH_CHKSUM_SET(ih, inet_chksum(ih, sizeof(struct ip_hdr))); + return p; +} + +/* bind 2 pcbs to specific netif IP and test which one gets broadcasts */ +START_TEST(test_udp_broadcast_rx_with_2_netifs) +{ + err_t err; + struct udp_pcb *pcb1, *pcb2; + const u16_t port = 12345; + struct test_udp_rxdata ctr1, ctr2; + struct pbuf *p; +#if SO_REUSE + struct udp_pcb *pcb_any; + struct test_udp_rxdata ctr_any; +#endif + LWIP_UNUSED_ARG(_i); + + pcb1 = udp_new(); + fail_unless(pcb1 != NULL); + pcb2 = udp_new(); + fail_unless(pcb2 != NULL); + +#if SO_REUSE + pcb_any = udp_new(); + fail_unless(pcb_any != NULL); + + ip_set_option(pcb1, SOF_REUSEADDR); + ip_set_option(pcb2, SOF_REUSEADDR); + ip_set_option(pcb_any, SOF_REUSEADDR); + + err = udp_bind(pcb_any, NULL, port); + fail_unless(err == ERR_OK); + memset(&ctr_any, 0, sizeof(ctr_any)); + ctr_any.pcb = pcb_any; + udp_recv(pcb_any, test_recv, &ctr_any); +#endif + + err = udp_bind(pcb1, &test_netif1.ip_addr, port); + fail_unless(err == ERR_OK); + err = udp_bind(pcb2, &test_netif2.ip_addr, port); + fail_unless(err == ERR_OK); + + memset(&ctr1, 0, sizeof(ctr1)); + ctr1.pcb = pcb1; + memset(&ctr2, 0, sizeof(ctr2)); + ctr2.pcb = pcb2; + + udp_recv(pcb1, test_recv, &ctr1); + udp_recv(pcb2, test_recv, &ctr2); + + /* unicast to netif1 */ + p = test_udp_create_test_packet(16, port, test_ipaddr1.addr); + EXPECT_RET(p != NULL); + err = ip4_input(p, &test_netif1); + fail_unless(err == ERR_OK); + fail_unless(ctr1.rx_cnt == 1); + fail_unless(ctr1.rx_bytes == 16); + fail_unless(ctr2.rx_cnt == 0); +#if SO_REUSE + fail_unless(ctr_any.rx_cnt == 0); +#endif + ctr1.rx_cnt = ctr1.rx_bytes = 0; + + /* unicast to netif2 */ + p = test_udp_create_test_packet(16, port, test_ipaddr2.addr); + EXPECT_RET(p != NULL); + err = ip4_input(p, &test_netif2); + fail_unless(err == ERR_OK); + fail_unless(ctr2.rx_cnt == 1); + fail_unless(ctr2.rx_bytes == 16); + fail_unless(ctr1.rx_cnt == 0); +#if SO_REUSE + fail_unless(ctr_any.rx_cnt == 0); +#endif + ctr2.rx_cnt = ctr2.rx_bytes = 0; + + /* broadcast to netif1-broadcast, input to netif2 */ + p = test_udp_create_test_packet(16, port, test_ipaddr1.addr | ~test_netmask1.addr); + EXPECT_RET(p != NULL); + err = ip4_input(p, &test_netif2); + fail_unless(err == ERR_OK); + fail_unless(ctr1.rx_cnt == 1); + fail_unless(ctr1.rx_bytes == 16); + fail_unless(ctr2.rx_cnt == 0); +#if SO_REUSE + fail_unless(ctr_any.rx_cnt == 0); +#endif + ctr1.rx_cnt = ctr1.rx_bytes = 0; + + /* broadcast to netif2-broadcast, input to netif1 */ + p = test_udp_create_test_packet(16, port, test_ipaddr2.addr | ~test_netmask2.addr); + EXPECT_RET(p != NULL); + err = ip4_input(p, &test_netif1); + fail_unless(err == ERR_OK); + fail_unless(ctr2.rx_cnt == 1); + fail_unless(ctr2.rx_bytes == 16); + fail_unless(ctr1.rx_cnt == 0); +#if SO_REUSE + fail_unless(ctr_any.rx_cnt == 0); +#endif + ctr2.rx_cnt = ctr2.rx_bytes = 0; + + /* broadcast to global-broadcast, input to netif1 */ + p = test_udp_create_test_packet(16, port, 0xffffffff); + EXPECT_RET(p != NULL); + err = ip4_input(p, &test_netif1); + fail_unless(err == ERR_OK); + fail_unless(ctr1.rx_cnt == 1); + fail_unless(ctr1.rx_bytes == 16); + fail_unless(ctr2.rx_cnt == 0); +#if SO_REUSE + fail_unless(ctr_any.rx_cnt == 0); +#endif + ctr1.rx_cnt = ctr1.rx_bytes = 0; + + /* broadcast to global-broadcast, input to netif2 */ + p = test_udp_create_test_packet(16, port, 0xffffffff); + EXPECT_RET(p != NULL); + err = ip4_input(p, &test_netif2); + fail_unless(err == ERR_OK); + fail_unless(ctr2.rx_cnt == 1); + fail_unless(ctr2.rx_bytes == 16); + fail_unless(ctr1.rx_cnt == 0); +#if SO_REUSE + fail_unless(ctr_any.rx_cnt == 0); +#endif + ctr2.rx_cnt = ctr2.rx_bytes = 0; +} +END_TEST + +START_TEST(test_udp_bind) +{ + struct udp_pcb* pcb1; + struct udp_pcb* pcb2; + ip_addr_t ip1; + ip_addr_t ip2; + err_t err1; + err_t err2; + LWIP_UNUSED_ARG(_i); + + /* bind on same port using different IP address types */ + ip_addr_set_any_val(0, ip1); + ip_addr_set_any_val(1, ip2); + + pcb1 = udp_new_ip_type(IPADDR_TYPE_V4); + pcb2 = udp_new_ip_type(IPADDR_TYPE_V6); + + err1 = udp_bind(pcb1, &ip1, 2105); + err2 = udp_bind(pcb2, &ip2, 2105); + + fail_unless(err1 == ERR_OK); + fail_unless(err2 == ERR_OK); + + udp_remove(pcb1); + udp_remove(pcb2); + + /* bind on same port using SAME IPv4 address type */ + ip_addr_set_any_val(0, ip1); + ip_addr_set_any_val(0, ip2); + + pcb1 = udp_new_ip_type(IPADDR_TYPE_V4); + pcb2 = udp_new_ip_type(IPADDR_TYPE_V4); + + err1 = udp_bind(pcb1, &ip1, 2105); + err2 = udp_bind(pcb2, &ip2, 2105); + + fail_unless(err1 == ERR_OK); + fail_unless(err2 == ERR_USE); + + udp_remove(pcb1); + udp_remove(pcb2); + + /* bind on same port using SAME IPv6 address type */ + ip_addr_set_any_val(1, ip1); + ip_addr_set_any_val(1, ip2); + + pcb1 = udp_new_ip_type(IPADDR_TYPE_V6); + pcb2 = udp_new_ip_type(IPADDR_TYPE_V6); + + err1 = udp_bind(pcb1, &ip1, 2105); + err2 = udp_bind(pcb2, &ip2, 2105); + + fail_unless(err1 == ERR_OK); + fail_unless(err2 == ERR_USE); + + udp_remove(pcb1); + udp_remove(pcb2); + + /* Bind with different IP address type */ + ip_addr_set_any_val(0, ip1); + ip_addr_set_any_val(1, ip2); + + pcb1 = udp_new_ip_type(IPADDR_TYPE_V6); + pcb2 = udp_new_ip_type(IPADDR_TYPE_V4); + + err1 = udp_bind(pcb1, &ip1, 2105); + err2 = udp_bind(pcb2, &ip2, 2105); + + fail_unless(err1 == ERR_OK); + fail_unless(err2 == ERR_OK); + + udp_remove(pcb1); + udp_remove(pcb2); + + /* Bind with different IP numbers */ + IP_ADDR4(&ip1, 1, 2, 3, 4); + IP_ADDR4(&ip2, 4, 3, 2, 1); + + pcb1 = udp_new_ip_type(IPADDR_TYPE_V6); + pcb2 = udp_new_ip_type(IPADDR_TYPE_V4); + + err1 = udp_bind(pcb1, &ip1, 2105); + err2 = udp_bind(pcb2, &ip2, 2105); + + fail_unless(err1 == ERR_OK); + fail_unless(err2 == ERR_OK); + + udp_remove(pcb1); + udp_remove(pcb2); + + /* Bind with same IP numbers */ + IP_ADDR4(&ip1, 1, 2, 3, 4); + IP_ADDR4(&ip2, 1, 2, 3, 4); + + pcb1 = udp_new_ip_type(IPADDR_TYPE_V6); + pcb2 = udp_new_ip_type(IPADDR_TYPE_V4); + + err1 = udp_bind(pcb1, &ip1, 2105); + err2 = udp_bind(pcb2, &ip2, 2105); + + fail_unless(err1 == ERR_OK); + fail_unless(err2 == ERR_USE); + + udp_remove(pcb1); + udp_remove(pcb2); + + /* bind on same port using ANY + IPv4 */ + ip1 = *IP_ANY_TYPE; + IP_ADDR4(&ip2, 1, 2, 3, 4); + + pcb1 = udp_new_ip_type(IPADDR_TYPE_ANY); + pcb2 = udp_new_ip_type(IPADDR_TYPE_V4); + + err1 = udp_bind(pcb1, &ip1, 2105); + err2 = udp_bind(pcb2, &ip2, 2105); + + fail_unless(err1 == ERR_OK); + fail_unless(err2 == ERR_USE); + + udp_remove(pcb1); + udp_remove(pcb2); +} +END_TEST + +/** Create the suite including all tests for this module */ +Suite * +udp_suite(void) +{ + testfunc tests[] = { + TESTFUNC(test_udp_new_remove), + TESTFUNC(test_udp_broadcast_rx_with_2_netifs), + TESTFUNC(test_udp_bind) + }; + return create_suite("UDP", tests, sizeof(tests)/sizeof(testfunc), udp_setup, udp_teardown); +} diff --git a/middleware/lwip/test/unit/udp/test_udp.h b/middleware/lwip/test/unit/udp/test_udp.h new file mode 100644 index 0000000..5426bf4 --- /dev/null +++ b/middleware/lwip/test/unit/udp/test_udp.h @@ -0,0 +1,8 @@ +#ifndef LWIP_HDR_TEST_UDP_H +#define LWIP_HDR_TEST_UDP_H + +#include "../lwip_check.h" + +Suite* udp_suite(void); + +#endif diff --git a/middleware/sdmmc/common/fsl_sdmmc_common.c b/middleware/sdmmc/common/fsl_sdmmc_common.c new file mode 100644 index 0000000..391987d --- /dev/null +++ b/middleware/sdmmc/common/fsl_sdmmc_common.c @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include "fsl_sdmmc_common.h" +/******************************************************************************* + * Variables + ******************************************************************************/ +#if SDMMCHOST_SUPPORT_DDR50 || SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 || SDMMCHOST_SUPPORT_HS200 || \ + SDMMCHOST_SUPPORT_HS400 +/* sdmmc tuning block */ +const uint32_t SDMMC_TuningBlockPattern4Bit[16U] = { + 0xFF0FFF00U, 0xFFCCC3CCU, 0xC33CCCFFU, 0xFEFFFEEFU, 0xFFDFFFDDU, 0xFFFBFFFBU, 0xBFFF7FFFU, 0x77F7BDEFU, + 0xFFF0FFF0U, 0x0FFCCC3CU, 0xCC33CCCFU, 0xFFEFFFEEU, 0xFFFDFFFDU, 0xDFFFBFFFU, 0xBBFFF7FFU, 0xF77F7BDEU, +}; +const uint32_t SDMMC_TuningBlockPattern8Bit[32U] = { + 0xffff00ffU, 0xffff0000U, 0xffffccccU, 0xcc33ccccU, 0xcc3333ccU, 0xccccffffU, 0xffeeffffU, 0xffeeeeffU, + 0xffffddffU, 0xffffddddU, 0xffffffbbU, 0xffffffbbU, 0xbbffffffU, 0x77ffffffU, 0x7777ff77U, 0xbbddeeffU, + 0xffffff00U, 0xffffff00U, 0x00ffffccU, 0xcccc33ccU, 0xcccc3333U, 0xccccccffU, 0xffffeeffU, 0xffffeeeeU, + 0xffffffddU, 0xffffffddU, 0xddffffffU, 0xbbffffffU, 0xbbbbffffU, 0xff77ffffU, 0xff7777ffU, 0x77bbddeeU, +}; +#endif +/******************************************************************************* + * Code + ******************************************************************************/ +status_t SDMMC_SelectCard(sdmmchost_t *host, uint32_t relativeAddress, bool isSelected) +{ + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDMMC_SelectCard; + if (isSelected) + { + command.argument = relativeAddress << 16U; + command.responseType = kCARD_ResponseTypeR1; + } + else + { + command.argument = 0U; + command.responseType = kCARD_ResponseTypeNone; + } + + content.command = &command; + content.data = NULL; + if ((kStatus_Success != SDMMCHOST_TransferFunction(host, &content)) || + ((command.response[0U] & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + return kStatus_SDMMC_TransferFailed; + } + + /* Wait until card to transfer state */ + return kStatus_Success; +} + +status_t SDMMC_SendApplicationCommand(sdmmchost_t *host, uint32_t relativeAddress) +{ + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDMMC_ApplicationCommand; + command.argument = (relativeAddress << 16U); + command.responseType = kCARD_ResponseTypeR1; + + content.command = &command; + content.data = NULL; + if ((kStatus_Success != SDMMCHOST_TransferFunction(host, &content)) || + ((command.response[0U] & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + return kStatus_SDMMC_TransferFailed; + } + + if (0U == (command.response[0U] & SDMMC_MASK(kSDMMC_R1ApplicationCommandFlag))) + { + return kStatus_SDMMC_CardNotSupport; + } + + return kStatus_Success; +} + +status_t SDMMC_SetBlockCount(sdmmchost_t *host, uint32_t blockCount) +{ + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDMMC_SetBlockCount; + command.argument = blockCount; + command.responseType = kCARD_ResponseTypeR1; + + content.command = &command; + content.data = NULL; + if ((kStatus_Success != SDMMCHOST_TransferFunction(host, &content)) || + ((command.response[0U] & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t SDMMC_GoIdle(sdmmchost_t *host) +{ + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDMMC_GoIdleState; + + content.command = &command; + content.data = NULL; + if (kStatus_Success != SDMMCHOST_TransferFunction(host, &content)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t SDMMC_SetBlockSize(sdmmchost_t *host, uint32_t blockSize) +{ + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDMMC_SetBlockLength; + command.argument = blockSize; + command.responseType = kCARD_ResponseTypeR1; + + content.command = &command; + content.data = NULL; + if ((kStatus_Success != SDMMCHOST_TransferFunction(host, &content)) || + ((command.response[0U] & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t SDMMC_SetCardInactive(sdmmchost_t *host) +{ + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDMMC_GoInactiveState; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeNone; + + content.command = &command; + content.data = NULL; + if ((kStatus_Success != SDMMCHOST_TransferFunction(host, &content))) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} diff --git a/middleware/sdmmc/common/fsl_sdmmc_common.h b/middleware/sdmmc/common/fsl_sdmmc_common.h new file mode 100644 index 0000000..671690a --- /dev/null +++ b/middleware/sdmmc/common/fsl_sdmmc_common.h @@ -0,0 +1,346 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef _FSL_SDMMC_COMMON_H_ +#define _FSL_SDMMC_COMMON_H_ + +#include "fsl_common.h" +#include "fsl_sdmmc_host.h" +#include "fsl_sdmmc_spec.h" +#include "stdlib.h" + +/*! + * @addtogroup SDMMC_COMMON + * @{ + */ + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @brief Reverse byte sequence in uint32_t */ +#define SWAP_WORD_BYTE_SEQUENCE(x) (__REV(x)) +/*! @brief Reverse byte sequence for each half word in uint32_t */ +#define SWAP_HALF_WROD_BYTE_SEQUENCE(x) (__REV16(x)) +/*! @brief Maximum loop count to check the card operation voltage range */ +#define FSL_SDMMC_MAX_VOLTAGE_RETRIES (1000U) +/*! @brief Maximum loop count to send the cmd */ +#define FSL_SDMMC_MAX_CMD_RETRIES (10U) +/*! @brief Default block size */ +#define FSL_SDMMC_DEFAULT_BLOCK_SIZE (512U) + +/*! @brief make sure the internal buffer address is cache align */ +#if defined(FSL_FEATURE_L1DCACHE_LINESIZE_BYTE) +#if defined(FSL_FEATURE_L2DCACHE_LINESIZE_BYTE) +#define SDMMC_DATA_BUFFER_ALIGN_CACHE MAX(FSL_FEATURE_L1DCACHE_LINESIZE_BYTE, FSL_FEATURE_L2DCACHE_LINESIZE_BYTE) +#else +#define SDMMC_DATA_BUFFER_ALIGN_CACHE FSL_FEATURE_L1DCACHE_LINESIZE_BYTE +#endif +#else +#define SDMMC_DATA_BUFFER_ALIGN_CACHE sizeof(uint32_t) +#endif + +/*! @brief sdmmc card internal buffer size */ +#define FSL_SDMMC_CARD_INTERNAL_BUFFER_SIZE (FSL_SDMMC_DEFAULT_BLOCK_SIZE + SDMMC_DATA_BUFFER_ALIGN_CACHE) +#define FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(buffer) \ + (uint32_t)((uint32_t)(buffer) + (uint32_t)SDMMC_DATA_BUFFER_ALIGN_CACHE - \ + ((uint32_t)(buffer) & ((uint32_t)SDMMC_DATA_BUFFER_ALIGN_CACHE - 1U))) +/*! @brief get maximum freq */ +#define FSL_SDMMC_CARD_MAX_BUS_FREQ(max, target) ((max) == 0U ? (target) : ((max) > (target) ? (target) : (max))) +/*! @brief SD/MMC error log. */ +#if defined SDMMC_ENABLE_LOG_PRINT +#include "fsl_debug_console.h" +#define SDMMC_LOG(...) PRINTF(__VA_ARGS__) +#else +#define SDMMC_LOG(format, ...) +#endif + +/*! @brief SD/MMC card API's running status. + * @anchor _sdmmc_status + */ +enum +{ + kStatus_SDMMC_NotSupportYet = MAKE_STATUS(kStatusGroup_SDMMC, 0U), /*!< Haven't supported */ + kStatus_SDMMC_TransferFailed = MAKE_STATUS(kStatusGroup_SDMMC, 1U), /*!< Send command failed */ + kStatus_SDMMC_SetCardBlockSizeFailed = MAKE_STATUS(kStatusGroup_SDMMC, 2U), /*!< Set block size failed */ + kStatus_SDMMC_HostNotSupport = MAKE_STATUS(kStatusGroup_SDMMC, 3U), /*!< Host doesn't support */ + kStatus_SDMMC_CardNotSupport = MAKE_STATUS(kStatusGroup_SDMMC, 4U), /*!< Card doesn't support */ + kStatus_SDMMC_AllSendCidFailed = MAKE_STATUS(kStatusGroup_SDMMC, 5U), /*!< Send CID failed */ + kStatus_SDMMC_SendRelativeAddressFailed = MAKE_STATUS(kStatusGroup_SDMMC, 6U), /*!< Send relative address failed */ + kStatus_SDMMC_SendCsdFailed = MAKE_STATUS(kStatusGroup_SDMMC, 7U), /*!< Send CSD failed */ + kStatus_SDMMC_SelectCardFailed = MAKE_STATUS(kStatusGroup_SDMMC, 8U), /*!< Select card failed */ + kStatus_SDMMC_SendScrFailed = MAKE_STATUS(kStatusGroup_SDMMC, 9U), /*!< Send SCR failed */ + kStatus_SDMMC_SetDataBusWidthFailed = MAKE_STATUS(kStatusGroup_SDMMC, 10U), /*!< Set bus width failed */ + kStatus_SDMMC_GoIdleFailed = MAKE_STATUS(kStatusGroup_SDMMC, 11U), /*!< Go idle failed */ + kStatus_SDMMC_HandShakeOperationConditionFailed = + MAKE_STATUS(kStatusGroup_SDMMC, 12U), /*!< Send Operation Condition failed */ + kStatus_SDMMC_SendApplicationCommandFailed = + MAKE_STATUS(kStatusGroup_SDMMC, 13U), /*!< Send application command failed */ + kStatus_SDMMC_SwitchFailed = MAKE_STATUS(kStatusGroup_SDMMC, 14U), /*!< Switch command failed */ + kStatus_SDMMC_StopTransmissionFailed = MAKE_STATUS(kStatusGroup_SDMMC, 15U), /*!< Stop transmission failed */ + kStatus_SDMMC_WaitWriteCompleteFailed = MAKE_STATUS(kStatusGroup_SDMMC, 16U), /*!< Wait write complete failed */ + kStatus_SDMMC_SetBlockCountFailed = MAKE_STATUS(kStatusGroup_SDMMC, 17U), /*!< Set block count failed */ + kStatus_SDMMC_SetRelativeAddressFailed = MAKE_STATUS(kStatusGroup_SDMMC, 18U), /*!< Set relative address failed */ + kStatus_SDMMC_SwitchBusTimingFailed = MAKE_STATUS(kStatusGroup_SDMMC, 19U), /*!< Switch high speed failed */ + kStatus_SDMMC_SendExtendedCsdFailed = MAKE_STATUS(kStatusGroup_SDMMC, 20U), /*!< Send EXT_CSD failed */ + kStatus_SDMMC_ConfigureBootFailed = MAKE_STATUS(kStatusGroup_SDMMC, 21U), /*!< Configure boot failed */ + kStatus_SDMMC_ConfigureExtendedCsdFailed = MAKE_STATUS(kStatusGroup_SDMMC, 22U), /*!< Configure EXT_CSD failed */ + kStatus_SDMMC_EnableHighCapacityEraseFailed = + MAKE_STATUS(kStatusGroup_SDMMC, 23U), /*!< Enable high capacity erase failed */ + kStatus_SDMMC_SendTestPatternFailed = MAKE_STATUS(kStatusGroup_SDMMC, 24U), /*!< Send test pattern failed */ + kStatus_SDMMC_ReceiveTestPatternFailed = MAKE_STATUS(kStatusGroup_SDMMC, 25U), /*!< Receive test pattern failed */ + kStatus_SDMMC_SDIO_ResponseError = MAKE_STATUS(kStatusGroup_SDMMC, 26U), /*!< sdio response error */ + kStatus_SDMMC_SDIO_InvalidArgument = + MAKE_STATUS(kStatusGroup_SDMMC, 27U), /*!< sdio invalid argument response error */ + kStatus_SDMMC_SDIO_SendOperationConditionFail = + MAKE_STATUS(kStatusGroup_SDMMC, 28U), /*!< sdio send operation condition fail */ + kStatus_SDMMC_InvalidVoltage = MAKE_STATUS(kStatusGroup_SDMMC, 29U), /*!< invaild voltage */ + kStatus_SDMMC_SDIO_SwitchHighSpeedFail = MAKE_STATUS(kStatusGroup_SDMMC, 30U), /*!< switch to high speed fail */ + kStatus_SDMMC_SDIO_ReadCISFail = MAKE_STATUS(kStatusGroup_SDMMC, 31U), /*!< read CIS fail */ + kStatus_SDMMC_SDIO_InvalidCard = MAKE_STATUS(kStatusGroup_SDMMC, 32U), /*!< invaild SDIO card */ + kStatus_SDMMC_TuningFail = MAKE_STATUS(kStatusGroup_SDMMC, 33U), /*!< tuning fail */ + + kStatus_SDMMC_SwitchVoltageFail = MAKE_STATUS(kStatusGroup_SDMMC, 34U), /*!< switch voltage fail*/ + kStatus_SDMMC_SwitchVoltage18VFail33VSuccess = MAKE_STATUS(kStatusGroup_SDMMC, 35U), /*!< switch voltage fail*/ + + kStatus_SDMMC_ReTuningRequest = MAKE_STATUS(kStatusGroup_SDMMC, 36U), /*!< retuning request */ + kStatus_SDMMC_SetDriverStrengthFail = MAKE_STATUS(kStatusGroup_SDMMC, 37U), /*!< set driver strength fail */ + kStatus_SDMMC_SetPowerClassFail = MAKE_STATUS(kStatusGroup_SDMMC, 38U), /*!< set power class fail */ + kStatus_SDMMC_HostNotReady = MAKE_STATUS(kStatusGroup_SDMMC, 39U), /*!< host controller not ready */ + kStatus_SDMMC_CardDetectFailed = MAKE_STATUS(kStatusGroup_SDMMC, 40U), /*!< card detect failed */ + kStatus_SDMMC_AuSizeNotSetProperly = MAKE_STATUS(kStatusGroup_SDMMC, 41U), /*!< AU size not set properly */ + kStatus_SDMMC_PollingCardIdleFailed = MAKE_STATUS(kStatusGroup_SDMMC, 42U), /*!< polling card idle status failed */ +}; + +/*! @brief sdmmc signal line + * @anchor _sdmmc_signal_line + */ +enum +{ + kSDMMC_SignalLineCmd = 1U, /*!< cmd line */ + kSDMMC_SignalLineData0 = 2U, /*!< data line */ + kSDMMC_SignalLineData1 = 4U, /*!< data line */ + kSDMMC_SignalLineData2 = 8U, /*!< data line */ + kSDMMC_SignalLineData3 = 16U, /*!< data line */ + kSDMMC_SignalLineData4 = 32U, /*!< data line */ + kSDMMC_SignalLineData5 = 64U, /*!< data line */ + kSDMMC_SignalLineData6 = 128U, /*!< data line */ + kSDMMC_SignalLineData7 = 256U, /*!< data line */ +}; + +/*! @brief card operation voltage */ +typedef enum _sdmmc_operation_voltage +{ + kSDMMC_OperationVoltageNone = 0U, /*!< indicate current voltage setting is not setting by suser*/ + kSDMMC_OperationVoltage330V = 1U, /*!< card operation voltage around 3.3v */ + kSDMMC_OperationVoltage300V = 2U, /*!< card operation voltage around 3.0v */ + kSDMMC_OperationVoltage180V = 3U, /*!< card operation voltage around 1.8v */ +} sdmmc_operation_voltage_t; + +/*!@brief card bus width + * @anchor _sdmmc_bus_width + */ +enum +{ + kSDMMC_BusWdith1Bit = 0U, /*!< card bus 1 width */ + kSDMMC_BusWdith4Bit = 1U, /*!< card bus 4 width */ + kSDMMC_BusWdith8Bit = 2U, /*!< card bus 8 width */ +}; + +/*!@brief sdmmc capability flag + * @anchor _sdmmc_capability_flag + */ +enum +{ + kSDMMC_Support8BitWidth = 1U, /*!< 8 bit data width capability */ +}; + +/*! @brief sd card detect type */ +typedef enum _sd_detect_card_type +{ + kSD_DetectCardByGpioCD, /*!< sd card detect by CD pin through GPIO */ + kSD_DetectCardByHostCD, /*!< sd card detect by CD pin through host */ + kSD_DetectCardByHostDATA3, /*!< sd card detect by DAT3 pin through host */ +} sd_detect_card_type_t; + +/*!@ brief SD card detect status + * @anchor _sd_card_cd_status + */ +enum +{ + kSD_Inserted = 1U, /*!< card is inserted*/ + kSD_Removed = 0U, /*!< card is removed */ +}; + +/*!@ brief SD card detect status + * @anchor _sd_card_dat3_pull_status + */ +enum +{ + kSD_DAT3PullDown = 0U, /*!< data3 pull down */ + kSD_DAT3PullUp = 1U, /*!< data3 pull up */ +}; + +/*! @brief card detect aoolication callback definition */ +typedef void (*sd_cd_t)(bool isInserted, void *userData); +/*! @brief card detect status */ +typedef bool (*sd_cd_status_t)(void); +typedef void (*sd_dat3_pull_t)(uint32_t pullStatus); + +/*! @brief sd card detect */ +typedef struct _sd_detect_card +{ + sd_detect_card_type_t type; /*!< card detect type */ + uint32_t cdDebounce_ms; /*!< card detect debounce delay ms */ + sd_cd_t callback; /*!< card inserted callback which is meaningful for interrupt case */ + sd_cd_status_t cardDetected; /*!< used to check sd cd status when card detect through GPIO */ + sd_dat3_pull_t dat3PullFunc; /*!< function pointer of DATA3 pull up/down */ + + void *userData; /*!< user data */ +} sd_detect_card_t; + +/*!@brief io voltage control type*/ +typedef enum _sd_io_voltage_ctrl_type +{ + kSD_IOVoltageCtrlNotSupport = 0U, /*!< io voltage control not support */ + kSD_IOVoltageCtrlByHost = 1U, /*!< io voltage control by host */ + kSD_IOVoltageCtrlByGpio = 2U, /*!< io voltage control by gpio */ +} sd_io_voltage_ctrl_type_t; + +/*! @brief card switch voltage function pointer */ +typedef void (*sd_io_voltage_func_t)(sdmmc_operation_voltage_t voltage); + +/*!@brief io voltage control configuration */ +typedef struct _sd_io_voltage +{ + sd_io_voltage_ctrl_type_t type; /*!< io voltage switch type */ + sd_io_voltage_func_t func; /*!< io voltage switch function */ +} sd_io_voltage_t; + +/*! @brief card power control function pointer */ +typedef void (*sd_pwr_t)(bool enable); +/*! @brief card io strength control */ +typedef void (*sd_io_strength_t)(uint32_t busFreq); +/*! @brief sdcard user parameter */ +typedef struct _sd_usr_param +{ + sd_pwr_t pwr; /*!< power control configuration pointer */ + sd_io_strength_t ioStrength; /*!< swicth sd io strength */ + sd_io_voltage_t *ioVoltage; /*!< switch io voltage */ + sd_detect_card_t *cd; /*!< card detect */ + + uint32_t maxFreq; /*!< board support maximum frequency */ + uint32_t capability; /*!< board capability flag */ +} sd_usr_param_t; + +/*! @brief card interrupt function pointer */ +typedef void (*sdio_int_t)(void *userData); + +/*! @brief card interrupt application callback */ +typedef struct _sdio_card_int +{ + void *userData; /*!< user data */ + sdio_int_t cardInterrupt; /*!< card int call back */ +} sdio_card_int_t; + +/*! @brief sdio user parameter */ +typedef struct _sdio_usr_param +{ + sd_pwr_t pwr; /*!< power control configuration pointer */ + sd_io_strength_t ioStrength; /*!< swicth sd io strength */ + sd_io_voltage_t *ioVoltage; /*!< switch io voltage */ + sd_detect_card_t *cd; /*!< card detect */ + sdio_card_int_t *sdioInt; /*!< card int */ + uint32_t maxFreq; /*!< board support maximum frequency */ + uint32_t capability; /*!< board capability flag */ +} sdio_usr_param_t; + +/*! @brief tuning pattern */ +#if SDMMCHOST_SUPPORT_DDR50 || SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 || SDMMCHOST_SUPPORT_HS200 || \ + SDMMCHOST_SUPPORT_HS400 +/* sdmmc tuning block */ +extern const uint32_t SDMMC_TuningBlockPattern4Bit[16U]; +extern const uint32_t SDMMC_TuningBlockPattern8Bit[32U]; +#endif + +/************************************************************************************************* + * API + ************************************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif +/*! + * @name common function + * @{ + */ + +/*! + * @brief Selects the card to put it into transfer state. + * + * @param host host handler. + * @param relativeAddress Relative address. + * @param isSelected True to put card into transfer state. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SDMMC_SelectCard(sdmmchost_t *host, uint32_t relativeAddress, bool isSelected); + +/*! + * @brief Sends an application command. + * + * @param host host handler. + * @param relativeAddress Card relative address. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_CardNotSupport Card doesn't support. + * @retval kStatus_Success Operate successfully. + */ +status_t SDMMC_SendApplicationCommand(sdmmchost_t *host, uint32_t relativeAddress); + +/*! + * @brief Sets the block count. + * + * @param host host handler. + * @param blockCount Block count. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SDMMC_SetBlockCount(sdmmchost_t *host, uint32_t blockCount); + +/*! + * @brief Sets the card to be idle state. + * + * @param host host handler. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SDMMC_GoIdle(sdmmchost_t *host); +/*! + * @brief Sets data block size. + * + * @param host host handler. + * @param blockSize Block size. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SDMMC_SetBlockSize(sdmmchost_t *host, uint32_t blockSize); +/*! + * @brief Sets card to inactive status + * + * @param host host handler. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SDMMC_SetCardInactive(sdmmchost_t *host); + +/* @} */ + +#if defined(__cplusplus) +} +#endif +/* @} */ +#endif /* _FSL_SDMMC_COMMON_H_ */ diff --git a/middleware/sdmmc/common/fsl_sdmmc_spec.h b/middleware/sdmmc/common/fsl_sdmmc_spec.h new file mode 100644 index 0000000..a5edea7 --- /dev/null +++ b/middleware/sdmmc/common/fsl_sdmmc_spec.h @@ -0,0 +1,1261 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef _FSL_SDMMC_SPEC_H_ +#define _FSL_SDMMC_SPEC_H_ + +#include + +/*! + * @addtogroup SDMMC_COMMON + * @{ + */ + +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*! @brief SD/MMC card initialization clock frequency */ +#define SDMMC_CLOCK_400KHZ (400000U) +/*! @brief SD card bus frequency 1 in high-speed mode */ +#define SD_CLOCK_25MHZ (25000000U) +/*! @brief SD card bus frequency 2 in high-speed mode */ +#define SD_CLOCK_50MHZ (50000000U) +/*! @brief SD card bus frequency in SDR50 mode */ +#define SD_CLOCK_100MHZ (100000000U) +/*! @brief SD card bus frequency in SDR104 mode */ +#define SD_CLOCK_208MHZ (208000000U) +/*! @brief MMC card bus frequency 1 in high-speed mode */ +#define MMC_CLOCK_26MHZ (26000000U) +/*! @brief MMC card bus frequency 2 in high-speed mode */ +#define MMC_CLOCK_52MHZ (52000000U) +/*! @brief MMC card bus frequency in high-speed DDR52 mode */ +#define MMC_CLOCK_DDR52 (52000000U) +/*! @brief MMC card bus frequency in high-speed HS200 mode */ +#define MMC_CLOCK_HS200 (200000000U) +/*! @brief MMC card bus frequency in high-speed HS400 mode */ +#define MMC_CLOCK_HS400 (400000000U) + +/*!@brief mask convert */ +#define SDMMC_MASK(bit) (1U << (bit)) + +/*! @brief Card status bit in R1 + * @anchor _sdmmc_r1_card_status_flag + */ +enum +{ + kSDMMC_R1OutOfRangeFlag = 31, /*!< Out of range status bit */ + kSDMMC_R1AddressErrorFlag = 30, /*!< Address error status bit */ + kSDMMC_R1BlockLengthErrorFlag = 29, /*!< Block length error status bit */ + kSDMMC_R1EraseSequenceErrorFlag = 28, /*!< Erase sequence error status bit */ + kSDMMC_R1EraseParameterErrorFlag = 27, /*!< Erase parameter error status bit */ + kSDMMC_R1WriteProtectViolationFlag = 26, /*!< Write protection violation status bit */ + kSDMMC_R1CardIsLockedFlag = 25, /*!< Card locked status bit */ + kSDMMC_R1LockUnlockFailedFlag = 24, /*!< lock/unlock error status bit */ + kSDMMC_R1CommandCrcErrorFlag = 23, /*!< CRC error status bit */ + kSDMMC_R1IllegalCommandFlag = 22, /*!< Illegal command status bit */ + kSDMMC_R1CardEccFailedFlag = 21, /*!< Card ecc error status bit */ + kSDMMC_R1CardControllerErrorFlag = 20, /*!< Internal card controller error status bit */ + kSDMMC_R1ErrorFlag = 19, /*!< A general or an unknown error status bit */ + kSDMMC_R1CidCsdOverwriteFlag = 16, /*!< Cid/csd overwrite status bit */ + kSDMMC_R1WriteProtectEraseSkipFlag = 15, /*!< Write protection erase skip status bit */ + kSDMMC_R1CardEccDisabledFlag = 14, /*!< Card ecc disabled status bit */ + kSDMMC_R1EraseResetFlag = 13, /*!< Erase reset status bit */ + kSDMMC_R1ReadyForDataFlag = 8, /*!< Ready for data status bit */ + kSDMMC_R1SwitchErrorFlag = 7, /*!< Switch error status bit */ + kSDMMC_R1ApplicationCommandFlag = 5, /*!< Application command enabled status bit */ + kSDMMC_R1AuthenticationSequenceErrorFlag = 3, /*!< error in the sequence of authentication process */ +}; + +/*! @brief R1 all the error flag */ +#define SDMMC_R1_ALL_ERROR_FLAG \ + (SDMMC_MASK(kSDMMC_R1OutOfRangeFlag) | SDMMC_MASK(kSDMMC_R1AddressErrorFlag) | \ + SDMMC_MASK(kSDMMC_R1BlockLengthErrorFlag) | SDMMC_MASK(kSDMMC_R1EraseSequenceErrorFlag) | \ + SDMMC_MASK(kSDMMC_R1EraseParameterErrorFlag) | SDMMC_MASK(kSDMMC_R1WriteProtectViolationFlag) | \ + SDMMC_MASK(kSDMMC_R1CardIsLockedFlag) | SDMMC_MASK(kSDMMC_R1LockUnlockFailedFlag) | \ + SDMMC_MASK(kSDMMC_R1CommandCrcErrorFlag) | SDMMC_MASK(kSDMMC_R1IllegalCommandFlag) | \ + SDMMC_MASK(kSDMMC_R1CardEccFailedFlag) | SDMMC_MASK(kSDMMC_R1CardControllerErrorFlag) | \ + SDMMC_MASK(kSDMMC_R1ErrorFlag) | SDMMC_MASK(kSDMMC_R1CidCsdOverwriteFlag) | \ + SDMMC_MASK(kSDMMC_R1AuthenticationSequenceErrorFlag)) + +/*! @brief R1: current state */ +#define SDMMC_R1_CURRENT_STATE(x) (((x)&0x00001E00U) >> 9U) + +/*! @brief CURRENT_STATE filed in R1 */ +typedef enum _sdmmc_r1_current_state +{ + kSDMMC_R1StateIdle = 0U, /*!< R1: current state: idle */ + kSDMMC_R1StateReady = 1U, /*!< R1: current state: ready */ + kSDMMC_R1StateIdentify = 2U, /*!< R1: current state: identification */ + kSDMMC_R1StateStandby = 3U, /*!< R1: current state: standby */ + kSDMMC_R1StateTransfer = 4U, /*!< R1: current state: transfer */ + kSDMMC_R1StateSendData = 5U, /*!< R1: current state: sending data */ + kSDMMC_R1StateReceiveData = 6U, /*!< R1: current state: receiving data */ + kSDMMC_R1StateProgram = 7U, /*!< R1: current state: programming */ + kSDMMC_R1StateDisconnect = 8U, /*!< R1: current state: disconnect */ +} sdmmc_r1_current_state_t; + +/*! @brief Error bit in SPI mode R1 + * @anchor _sdspi_r1_error_status_flag + */ +enum +{ + kSDSPI_R1InIdleStateFlag = (1U << 0U), /*!< In idle state */ + kSDSPI_R1EraseResetFlag = (1U << 1U), /*!< Erase reset */ + kSDSPI_R1IllegalCommandFlag = (1U << 2U), /*!< Illegal command */ + kSDSPI_R1CommandCrcErrorFlag = (1U << 3U), /*!< Com crc error */ + kSDSPI_R1EraseSequenceErrorFlag = (1U << 4U), /*!< Erase sequence error */ + kSDSPI_R1AddressErrorFlag = (1U << 5U), /*!< Address error */ + kSDSPI_R1ParameterErrorFlag = (1U << 6U), /*!< Parameter error */ +}; + +/*! @brief Error bit in SPI mode R2 + * @anchor _sdspi_r2_error_status_flag + */ +enum +{ + kSDSPI_R2CardLockedFlag = (1U << 0U), /*!< Card is locked */ + kSDSPI_R2WriteProtectEraseSkip = (1U << 1U), /*!< Write protect erase skip */ + kSDSPI_R2LockUnlockFailed = (1U << 1U), /*!< Lock/unlock command failed */ + kSDSPI_R2ErrorFlag = (1U << 2U), /*!< Unknown error */ + kSDSPI_R2CardControllerErrorFlag = (1U << 3U), /*!< Card controller error */ + kSDSPI_R2CardEccFailedFlag = (1U << 4U), /*!< Card ecc failed */ + kSDSPI_R2WriteProtectViolationFlag = (1U << 5U), /*!< Write protect violation */ + kSDSPI_R2EraseParameterErrorFlag = (1U << 6U), /*!< Erase parameter error */ + kSDSPI_R2OutOfRangeFlag = (1U << 7U), /*!< Out of range */ + kSDSPI_R2CsdOverwriteFlag = (1U << 7U), /*!< CSD overwrite */ +}; + +/*! @brief The bit mask for COMMAND VERSION field in R7 */ +#define SDSPI_R7_VERSION_SHIFT (28U) +/*! @brief The bit mask for COMMAND VERSION field in R7 */ +#define SDSPI_R7_VERSION_MASK (0xFU) +/*! @brief The bit shift for VOLTAGE ACCEPTED field in R7 */ +#define SDSPI_R7_VOLTAGE_SHIFT (8U) +/*! @brief The bit mask for VOLTAGE ACCEPTED field in R7 */ +#define SDSPI_R7_VOLTAGE_MASK (0xFU) +/*! @brief The bit mask for VOLTAGE 2.7V to 3.6V field in R7 */ +#define SDSPI_R7_VOLTAGE_27_36_MASK (0x1U << SDSPI_R7_VOLTAGE_SHIFT) +/*! @brief The bit shift for ECHO field in R7 */ +#define SDSPI_R7_ECHO_SHIFT (0U) +/*! @brief The bit mask for ECHO field in R7 */ +#define SDSPI_R7_ECHO_MASK (0xFFU) + +/*! @brief Data error token mask */ +#define SDSPI_DATA_ERROR_TOKEN_MASK (0xFU) +/*! @brief Data Error Token mask bit + * @anchor _sdspi_data_error_token + */ +enum +{ + kSDSPI_DataErrorTokenError = (1U << 0U), /*!< Data error */ + kSDSPI_DataErrorTokenCardControllerError = (1U << 1U), /*!< Card controller error */ + kSDSPI_DataErrorTokenCardEccFailed = (1U << 2U), /*!< Card ecc error */ + kSDSPI_DataErrorTokenOutOfRange = (1U << 3U), /*!< Out of range */ +}; + +/*! @brief Data Token */ +typedef enum _sdspi_data_token +{ + kSDSPI_DataTokenBlockRead = 0xFEU, /*!< Single block read, multiple block read */ + kSDSPI_DataTokenSingleBlockWrite = 0xFEU, /*!< Single block write */ + kSDSPI_DataTokenMultipleBlockWrite = 0xFCU, /*!< Multiple block write */ + kSDSPI_DataTokenStopTransfer = 0xFDU, /*!< Stop transmission */ +} sdspi_data_token_t; + +/* Data Response Token mask */ +#define SDSPI_DATA_RESPONSE_TOKEN_MASK (0x1FU) /*!< Mask for data response bits */ +/*! @brief Data Response Token */ +typedef enum _sdspi_data_response_token +{ + kSDSPI_DataResponseTokenAccepted = 0x05U, /*!< Data accepted */ + kSDSPI_DataResponseTokenCrcError = 0x0BU, /*!< Data rejected due to CRC error */ + kSDSPI_DataResponseTokenWriteError = 0x0DU, /*!< Data rejected due to write error */ +} sdspi_data_response_token_t; + +/*! @brief SD card individual commands */ +typedef enum _sd_command +{ + kSD_SendRelativeAddress = 3U, /*!< Send Relative Address */ + kSD_Switch = 6U, /*!< Switch Function */ + kSD_SendInterfaceCondition = 8U, /*!< Send Interface Condition */ + kSD_VoltageSwitch = 11U, /*!< Voltage Switch */ + kSD_SpeedClassControl = 20U, /*!< Speed Class control */ + kSD_EraseWriteBlockStart = 32U, /*!< Write Block Start */ + kSD_EraseWriteBlockEnd = 33U, /*!< Write Block End */ + kSD_SendTuningBlock = 19U, /*!< Send Tuning Block */ +} sd_command_t; + +/*! @brief SDSPI individual commands */ +typedef enum _sdspi_command +{ + kSDSPI_CommandCrc = 59U, /*!< Command crc protection on/off */ +} sdspi_command_t; + +/*! @brief SD card individual application commands */ +typedef enum _sd_application_command +{ + kSD_ApplicationSetBusWdith = 6U, /*!< Set Bus Width */ + kSD_ApplicationStatus = 13U, /*!< Send SD status */ + kSD_ApplicationSendNumberWriteBlocks = 22U, /*!< Send Number Of Written Blocks */ + kSD_ApplicationSetWriteBlockEraseCount = 23U, /*!< Set Write Block Erase Count */ + kSD_ApplicationSendOperationCondition = 41U, /*!< Send Operation Condition */ + kSD_ApplicationSetClearCardDetect = 42U, /*!< Set Connnect/Disconnect pull up on detect pin */ + kSD_ApplicationSendScr = 51U, /*!< Send Scr */ +} sd_application_command_t; + +/*! @brief SD card command class + * @anchor _sdmmc_command_class + */ +enum +{ + kSDMMC_CommandClassBasic = (1U << 0U), /*!< Card command class 0 */ + kSDMMC_CommandClassBlockRead = (1U << 2U), /*!< Card command class 2 */ + kSDMMC_CommandClassBlockWrite = (1U << 4U), /*!< Card command class 4 */ + kSDMMC_CommandClassErase = (1U << 5U), /*!< Card command class 5 */ + kSDMMC_CommandClassWriteProtect = (1U << 6U), /*!< Card command class 6 */ + kSDMMC_CommandClassLockCard = (1U << 7U), /*!< Card command class 7 */ + kSDMMC_CommandClassApplicationSpecific = (1U << 8U), /*!< Card command class 8 */ + kSDMMC_CommandClassInputOutputMode = (1U << 9U), /*!< Card command class 9 */ + kSDMMC_CommandClassSwitch = (1U << 10U), /*!< Card command class 10 */ +}; + +/*! @brief OCR register in SD card + * @anchor _sd_ocr_flag + */ +enum +{ + kSD_OcrPowerUpBusyFlag = 31, /*!< Power up busy status */ + kSD_OcrHostCapacitySupportFlag = 30, /*!< Card capacity status */ + kSD_OcrCardCapacitySupportFlag = kSD_OcrHostCapacitySupportFlag, /*!< Card capacity status */ + kSD_OcrSwitch18RequestFlag = 24, /*!< Switch to 1.8V request */ + kSD_OcrSwitch18AcceptFlag = kSD_OcrSwitch18RequestFlag, /*!< Switch to 1.8V accepted */ + kSD_OcrVdd27_28Flag = 15, /*!< VDD 2.7-2.8 */ + kSD_OcrVdd28_29Flag = 16, /*!< VDD 2.8-2.9 */ + kSD_OcrVdd29_30Flag = 17, /*!< VDD 2.9-3.0 */ + kSD_OcrVdd30_31Flag = 18, /*!< VDD 2.9-3.0 */ + kSD_OcrVdd31_32Flag = 19, /*!< VDD 3.0-3.1 */ + kSD_OcrVdd32_33Flag = 20, /*!< VDD 3.1-3.2 */ + kSD_OcrVdd33_34Flag = 21, /*!< VDD 3.2-3.3 */ + kSD_OcrVdd34_35Flag = 22, /*!< VDD 3.3-3.4 */ + kSD_OcrVdd35_36Flag = 23, /*!< VDD 3.4-3.5 */ +}; + +/*! @brief SD card specification version number + * @anchor _sd_specification_version + */ +enum +{ + kSD_SpecificationVersion1_0 = (1U << 0U), /*!< SD card version 1.0-1.01 */ + kSD_SpecificationVersion1_1 = (1U << 1U), /*!< SD card version 1.10 */ + kSD_SpecificationVersion2_0 = (1U << 2U), /*!< SD card version 2.00 */ + kSD_SpecificationVersion3_0 = (1U << 3U), /*!< SD card version 3.0 */ +}; + +/*! @brief SD card switch mode */ +typedef enum _sd_switch_mode +{ + kSD_SwitchCheck = 0U, /*!< SD switch mode 0: check function */ + kSD_SwitchSet = 1U, /*!< SD switch mode 1: set function */ +} sd_switch_mode_t; + +/*! @brief SD card CSD register flags + * @anchor _sd_csd_flag + */ +enum +{ + kSD_CsdReadBlockPartialFlag = (1U << 0U), /*!< Partial blocks for read allowed [79:79] */ + kSD_CsdWriteBlockMisalignFlag = (1U << 1U), /*!< Write block misalignment [78:78] */ + kSD_CsdReadBlockMisalignFlag = (1U << 2U), /*!< Read block misalignment [77:77] */ + kSD_CsdDsrImplementedFlag = (1U << 3U), /*!< DSR implemented [76:76] */ + kSD_CsdEraseBlockEnabledFlag = (1U << 4U), /*!< Erase single block enabled [46:46] */ + kSD_CsdWriteProtectGroupEnabledFlag = (1U << 5U), /*!< Write protect group enabled [31:31] */ + kSD_CsdWriteBlockPartialFlag = (1U << 6U), /*!< Partial blocks for write allowed [21:21] */ + kSD_CsdFileFormatGroupFlag = (1U << 7U), /*!< File format group [15:15] */ + kSD_CsdCopyFlag = (1U << 8U), /*!< Copy flag [14:14] */ + kSD_CsdPermanentWriteProtectFlag = (1U << 9U), /*!< Permanent write protection [13:13] */ + kSD_CsdTemporaryWriteProtectFlag = (1U << 10U), /*!< Temporary write protection [12:12] */ +}; + +/*! @brief SD card SCR register flags + * @anchor _sd_scr_flag + */ +enum +{ + kSD_ScrDataStatusAfterErase = (1U << 0U), /*!< Data status after erases [55:55] */ + kSD_ScrSdSpecification3 = (1U << 1U), /*!< Specification version 3.00 or higher [47:47]*/ +}; + +/*! @brief SD timing function number + * @anchor _sd_timing_function + */ +enum +{ + kSD_FunctionSDR12Deafult = 0U, /*!< SDR12 mode & default*/ + kSD_FunctionSDR25HighSpeed = 1U, /*!< SDR25 & high speed*/ + kSD_FunctionSDR50 = 2U, /*!< SDR50 mode*/ + kSD_FunctionSDR104 = 3U, /*!< SDR104 mode*/ + kSD_FunctionDDR50 = 4U, /*!< DDR50 mode*/ +}; + +/*! @brief SD group number + * @anchor _sd_group_num + */ +enum +{ + kSD_GroupTimingMode = 0U, /*!< acess mode group*/ + kSD_GroupCommandSystem = 1U, /*!< command system group*/ + kSD_GroupDriverStrength = 2U, /*!< driver strength group*/ + kSD_GroupCurrentLimit = 3U, /*!< current limit group*/ +}; + +/*! @brief SD card timing mode flags */ +typedef enum _sd_timing_mode +{ + kSD_TimingSDR12DefaultMode = 0U, /*!< Identification mode & SDR12 */ + kSD_TimingSDR25HighSpeedMode = 1U, /*!< High speed mode & SDR25 */ + kSD_TimingSDR50Mode = 2U, /*!< SDR50 mode*/ + kSD_TimingSDR104Mode = 3U, /*!< SDR104 mode */ + kSD_TimingDDR50Mode = 4U, /*!< DDR50 mode */ +} sd_timing_mode_t; + +/*! @brief SD card driver strength */ +typedef enum _sd_driver_strength +{ + kSD_DriverStrengthTypeB = 0U, /*!< default driver strength*/ + kSD_DriverStrengthTypeA = 1U, /*!< driver strength TYPE A */ + kSD_DriverStrengthTypeC = 2U, /*!< driver strength TYPE C */ + kSD_DriverStrengthTypeD = 3U, /*!< driver strength TYPE D */ +} sd_driver_strength_t; + +/*! @brief SD card current limit */ +typedef enum _sd_max_current +{ + kSD_CurrentLimit200MA = 0U, /*!< default current limit */ + kSD_CurrentLimit400MA = 1U, /*!< current limit to 400MA */ + kSD_CurrentLimit600MA = 2U, /*!< current limit to 600MA */ + kSD_CurrentLimit800MA = 3U, /*!< current limit to 800MA */ +} sd_max_current_t; + +/*! @brief SD/MMC card common commands */ +typedef enum _sdmmc_command +{ + kSDMMC_GoIdleState = 0U, /*!< Go Idle State */ + kSDMMC_AllSendCid = 2U, /*!< All Send CID */ + kSDMMC_SetDsr = 4U, /*!< Set DSR */ + kSDMMC_SelectCard = 7U, /*!< Select Card */ + kSDMMC_SendCsd = 9U, /*!< Send CSD */ + kSDMMC_SendCid = 10U, /*!< Send CID */ + kSDMMC_StopTransmission = 12U, /*!< Stop Transmission */ + kSDMMC_SendStatus = 13U, /*!< Send Status */ + kSDMMC_GoInactiveState = 15U, /*!< Go Inactive State */ + kSDMMC_SetBlockLength = 16U, /*!< Set Block Length */ + kSDMMC_ReadSingleBlock = 17U, /*!< Read Single Block */ + kSDMMC_ReadMultipleBlock = 18U, /*!< Read Multiple Block */ + kSDMMC_SetBlockCount = 23U, /*!< Set Block Count */ + kSDMMC_WriteSingleBlock = 24U, /*!< Write Single Block */ + kSDMMC_WriteMultipleBlock = 25U, /*!< Write Multiple Block */ + kSDMMC_ProgramCsd = 27U, /*!< Program CSD */ + kSDMMC_SetWriteProtect = 28U, /*!< Set Write Protect */ + kSDMMC_ClearWriteProtect = 29U, /*!< Clear Write Protect */ + kSDMMC_SendWriteProtect = 30U, /*!< Send Write Protect */ + kSDMMC_Erase = 38U, /*!< Erase */ + kSDMMC_LockUnlock = 42U, /*!< Lock Unlock */ + kSDMMC_ApplicationCommand = 55U, /*!< Send Application Command */ + kSDMMC_GeneralCommand = 56U, /*!< General Purpose Command */ + kSDMMC_ReadOcr = 58U, /*!< Read OCR */ +} sdmmc_command_t; + +/*! @brief sdio card cccr register number */ +#define SDIO_CCCR_REG_NUMBER (0x16U) +/*! @brief sdio IO ready timeout steps */ +#ifndef SDIO_IO_READY_TIMEOUT_UNIT +#define SDIO_IO_READY_TIMEOUT_UNIT (10U) +#endif +/*! @brief sdio card cccr register addr + * @anchor _sdio_cccr_reg + */ +enum +{ + kSDIO_RegCCCRSdioVer = 0x00U, /*!< CCCR & SDIO version*/ + kSDIO_RegSDVersion = 0x01U, /*!< SD version */ + kSDIO_RegIOEnable = 0x02U, /*!< io enable register */ + kSDIO_RegIOReady = 0x03U, /*!< io ready register */ + kSDIO_RegIOIntEnable = 0x04U, /*!< io interrupt enable register */ + kSDIO_RegIOIntPending = 0x05U, /*!< io interrupt pending register */ + kSDIO_RegIOAbort = 0x06U, /*!< io abort register */ + kSDIO_RegBusInterface = 0x07U, /*!< bus interface register */ + kSDIO_RegCardCapability = 0x08U, /*!< card capability register */ + kSDIO_RegCommonCISPointer = 0x09U, /*!< common CIS pointer register */ + kSDIO_RegBusSuspend = 0x0C, /*!< bus suspend register */ + kSDIO_RegFunctionSelect = 0x0DU, /*!< function select register */ + kSDIO_RegExecutionFlag = 0x0EU, /*!< execution flag register */ + kSDIO_RegReadyFlag = 0x0FU, /*!< ready flag register */ + kSDIO_RegFN0BlockSizeLow = 0x10U, /*!< FN0 block size register */ + kSDIO_RegFN0BlockSizeHigh = 0x11U, /*!< FN0 block size register */ + kSDIO_RegPowerControl = 0x12U, /*!< power control register */ + kSDIO_RegBusSpeed = 0x13U, /*!< bus speed register */ + kSDIO_RegUHSITimingSupport = 0x14U, /*!< UHS-I timing support register */ + kSDIO_RegDriverStrength = 0x15U, /*!< Driver strength register */ + kSDIO_RegInterruptExtension = 0x16U, /*!< Interrupt extension register */ +}; + +/*! @brief sdio card individual commands */ +typedef enum _sdio_command +{ + kSDIO_SendRelativeAddress = 3U, /*!< send relative address */ + kSDIO_SendOperationCondition = 5U, /*!< send operation condition */ + kSDIO_SendInterfaceCondition = 8U, /*!< send interface condition */ + kSDIO_RWIODirect = 52U, /*!< read/write IO direct command */ + kSDIO_RWIOExtended = 53U, /*!< read/write IO extended command */ +} sdio_command_t; + +/*! @brief sdio card individual commands */ +typedef enum _sdio_func_num +{ + kSDIO_FunctionNum0, /*!< sdio function0*/ + kSDIO_FunctionNum1, /*!< sdio function1*/ + kSDIO_FunctionNum2, /*!< sdio function2*/ + kSDIO_FunctionNum3, /*!< sdio function3*/ + kSDIO_FunctionNum4, /*!< sdio function4*/ + kSDIO_FunctionNum5, /*!< sdio function5*/ + kSDIO_FunctionNum6, /*!< sdio function6*/ + kSDIO_FunctionNum7, /*!< sdio function7*/ + kSDIO_FunctionMemory, /*!< for combo card*/ +} sdio_func_num_t; + +#define SDIO_CMD_ARGUMENT_RW_POS (31U) /*!< read/write flag position */ +#define SDIO_CMD_ARGUMENT_FUNC_NUM_POS (28U) /*!< function number position */ +#define SDIO_DIRECT_CMD_ARGUMENT_RAW_POS (27U) /*!< direct raw flag position */ +#define SDIO_CMD_ARGUMENT_REG_ADDR_POS (9U) /*!< direct reg addr position */ +#define SDIO_CMD_ARGUMENT_REG_ADDR_MASK (0x1FFFFU) /*!< direct reg addr mask */ +#define SDIO_DIRECT_CMD_DATA_MASK (0xFFU) /*!< data mask */ + +#define SDIO_EXTEND_CMD_ARGUMENT_BLOCK_MODE_POS (27U) /*!< extended command argument block mode bit position */ +#define SDIO_EXTEND_CMD_ARGUMENT_OP_CODE_POS (26U) /*!< extended command argument OP Code bit position */ +#define SDIO_EXTEND_CMD_BLOCK_MODE_MASK (0x08000000U) /*!< block mode mask */ +#define SDIO_EXTEND_CMD_OP_CODE_MASK (0x04000000U) /*!< op code mask */ +#define SDIO_EXTEND_CMD_COUNT_MASK (0x1FFU) /*!< byte/block count mask */ +#define SDIO_MAX_BLOCK_SIZE (2048U) /*!< max block size */ +#define SDIO_FBR_BASE(x) ((x)*0x100U) /*!< function basic register */ +#define SDIO_TPL_CODE_END (0xFFU) /*!< tuple end */ +#define SDIO_TPL_CODE_MANIFID (0x20U) /*!< manufacturer ID */ +#define SDIO_TPL_CODE_FUNCID (0x21U) /*!< function ID */ +#define SDIO_TPL_CODE_FUNCE (0x22U) /*!< function extension tuple*/ +/*! @brief sdio command response flag + * @anchor _sdio_status_flag + */ +enum +{ + kSDIO_StatusCmdCRCError = 0x8000U, /*!< the CRC check of the previous cmd fail*/ + kSDIO_StatusIllegalCmd = 0x4000U, /*!< cmd illegal for the card state */ + kSDIO_StatusR6Error = 0x2000U, /*!< special for R6 error status */ + kSDIO_StatusError = 0x0800U, /*!< A general or an unknown error occurred */ + kSDIO_StatusFunctionNumError = 0x0200U, /*!< invail function error */ + kSDIO_StatusOutofRange = 0x0100U, /*!< cmd argument was out of the allowed range*/ +}; + +/*! @brief sdio operation condition flag + * @anchor _sdio_ocr_flag + */ +enum +{ + kSDIO_OcrPowerUpBusyFlag = 31, /*!< Power up busy status */ + kSDIO_OcrIONumber = 28, /*!< number of IO function */ + kSDIO_OcrMemPresent = 27, /*!< memory present flag */ + + kSDIO_OcrVdd20_21Flag = 8, /*!< VDD 2.0-2.1 */ + kSDIO_OcrVdd21_22Flag = 9, /*!< VDD 2.1-2.2 */ + kSDIO_OcrVdd22_23Flag = 10, /*!< VDD 2.2-2.3 */ + kSDIO_OcrVdd23_24Flag = 11, /*!< VDD 2.3-2.4 */ + kSDIO_OcrVdd24_25Flag = 12, /*!< VDD 2.4-2.5 */ + kSDIO_OcrVdd25_26Flag = 13, /*!< VDD 2.5-2.6 */ + kSDIO_OcrVdd26_27Flag = 14, /*!< VDD 2.6-2.7 */ + kSDIO_OcrVdd27_28Flag = 15, /*!< VDD 2.7-2.8 */ + kSDIO_OcrVdd28_29Flag = 16, /*!< VDD 2.8-2.9 */ + kSDIO_OcrVdd29_30Flag = 17, /*!< VDD 2.9-3.0 */ + kSDIO_OcrVdd30_31Flag = 18, /*!< VDD 2.9-3.0 */ + kSDIO_OcrVdd31_32Flag = 19, /*!< VDD 3.0-3.1 */ + kSDIO_OcrVdd32_33Flag = 20, /*!< VDD 3.1-3.2 */ + kSDIO_OcrVdd33_34Flag = 21, /*!< VDD 3.2-3.3 */ + kSDIO_OcrVdd34_35Flag = 22, /*!< VDD 3.3-3.4 */ + kSDIO_OcrVdd35_36Flag = 23, /*!< VDD 3.4-3.5 */ +}; +/*! @brief sdio ocr voltage window mask */ +#define SDIO_OCR_VOLTAGE_WINDOW_MASK (0xFFFFU << 8U) + +/*! @brief sdio ocr reigster IO NUMBER mask */ +#define SDIO_OCR_IO_NUM_MASK (7U << kSDIO_OcrIONumber) + +/*! @brief sdio capability flag + * @anchor _sdio_capability_flag + */ +enum +{ + kSDIO_CCCRSupportDirectCmdDuringDataTrans = (1U << 0U), /*!< support direct cmd during data transfer */ + kSDIO_CCCRSupportMultiBlock = (1U << 1U), /*!< support multi block mode */ + kSDIO_CCCRSupportReadWait = (1U << 2U), /*!< support read wait */ + kSDIO_CCCRSupportSuspendResume = (1U << 3U), /*!< support suspend resume */ + kSDIO_CCCRSupportIntDuring4BitDataTrans = (1U << 4U), /*!< support interrupt during 4-bit data transfer */ + kSDIO_CCCRSupportLowSpeed1Bit = (1U << 6U), /*!< support low speed 1bit mode */ + kSDIO_CCCRSupportLowSpeed4Bit = (1U << 7U), /*!< support low speed 4bit mode */ + kSDIO_CCCRSupportMasterPowerControl = (1U << 8U), /*!< support master power control */ + kSDIO_CCCRSupportHighSpeed = (1U << 9U), /*!< support high speed */ + kSDIO_CCCRSupportContinuousSPIInt = (1U << 10U), /*!< support continuous SPI interrupt */ +}; +/*! @brief UHS timing mode flag */ +#define SDIO_CCCR_SUPPORT_HIGHSPEED (1u << 9U) +#define SDIO_CCCR_SUPPORT_SDR50 (1U << 11U) +#define SDIO_CCCR_SUPPORT_SDR104 (1U << 12U) +#define SDIO_CCCR_SUPPORT_DDR50 (1U << 13U) +#define SDIO_CCCR_SUPPORT_DRIVER_TYPE_A (1U << 14U) +#define SDIO_CCCR_SUPPORT_DRIVER_TYPE_C (1U << 15U) +#define SDIO_CCCR_SUPPORT_DRIVER_TYPE_D (1U << 16U) +#define SDIO_CCCR_SUPPORT_ASYNC_INT (1U << 17U) + +#define SDIO_CCCR_BUS_SPEED_MASK (7U << 1U) +#define SDIO_CCCR_ENABLE_HIGHSPEED_MODE (1U << 1U) +#define SDIO_CCCR_ENABLE_SDR50_MODE (2U << 1U) +#define SDIO_CCCR_ENABLE_SDR104_MODE (3U << 1U) +#define SDIO_CCCR_ENABLE_DDR50_MODE (4U << 1U) + +/*! @brief Driver type flag */ +#define SDIO_CCCR_DRIVER_TYPE_MASK (3U << 4U) +#define SDIO_CCCR_ENABLE_DRIVER_TYPE_B (0U << 4U) +#define SDIO_CCCR_ENABLE_DRIVER_TYPE_A (1U << 4U) +#define SDIO_CCCR_ENABLE_DRIVER_TYPE_C (2U << 4U) +#define SDIO_CCCR_ENABLE_DRIVER_TYPE_D (3U << 4U) + +/*! @brief aync interrupt flag*/ +#define SDIO_CCCR_ASYNC_INT_MASK (1U) +#define SDIO_CCCR_ENABLE_AYNC_INT (1U << 1U) + +/*! @brief 8 bit data bus flag*/ +#define SDIO_CCCR_SUPPORT_8BIT_BUS (1UL << 18U) +#define SDIO_CCCR_SUPPORT_LOW_SPEED_4BIT_BUS (1U << 7U) +/*! @brief sdio fbr flag + * @anchor _sdio_fbr_flag + */ +enum +{ + kSDIO_FBRSupportCSA = (1U << 0U), /*!< function support CSA */ + kSDIO_FBRSupportPowerSelection = (1U << 1U), /*!< function support power selection */ +}; + +/*! @brief sdio bus width */ +typedef enum _sdio_bus_width +{ + kSDIO_DataBus1Bit = 0x00U, /*!< 1 bit bus mode */ + kSDIO_DataBus4Bit = 0X02U, /*!< 4 bit bus mode*/ + kSDIO_DataBus8Bit = 0X03U, /*!< 8 bit bus mode*/ +} sdio_bus_width_t; + +/*! @brief MMC card individual commands */ +typedef enum _mmc_command +{ + kMMC_SendOperationCondition = 1U, /*!< Send Operation Condition */ + kMMC_SetRelativeAddress = 3U, /*!< Set Relative Address */ + kMMC_SleepAwake = 5U, /*!< Sleep Awake */ + kMMC_Switch = 6U, /*!< Switch */ + kMMC_SendExtendedCsd = 8U, /*!< Send EXT_CSD */ + kMMC_ReadDataUntilStop = 11U, /*!< Read Data Until Stop */ + kMMC_BusTestRead = 14U, /*!< Test Read */ + kMMC_SendingBusTest = 19U, /*!< test bus width cmd*/ + kMMC_WriteDataUntilStop = 20U, /*!< Write Data Until Stop */ + kMMC_SendTuningBlock = 21U, /*!< MMC sending tuning block */ + kMMC_ProgramCid = 26U, /*!< Program CID */ + kMMC_EraseGroupStart = 35U, /*!< Erase Group Start */ + kMMC_EraseGroupEnd = 36U, /*!< Erase Group End */ + kMMC_FastInputOutput = 39U, /*!< Fast IO */ + kMMC_GoInterruptState = 40U, /*!< Go interrupt State */ +} mmc_command_t; + +/*! @brief MMC card classified as voltage range */ +typedef enum _mmc_classified_voltage +{ + kMMC_ClassifiedVoltageHigh = 0U, /*!< High-voltage MMC card */ + kMMC_ClassifiedVoltageDual = 1U, /*!< Dual-voltage MMC card */ +} mmc_classified_voltage_t; + +/*! @brief MMC card classified as density level */ +typedef enum _mmc_classified_density +{ + kMMC_ClassifiedDensityWithin2GB = 0U, /*!< Density byte is less than or equal 2GB */ + kMMC_ClassifiedDensityHigher2GB = 1U, /* Density byte is higher than 2GB */ +} mmc_classified_density_t; + +/*! @brief The bit mask for VOLTAGE WINDOW 1.70V to 1.95V field in OCR */ +#define MMC_OCR_V170TO195_SHIFT (7U) +/*! @brief The bit mask for VOLTAGE WINDOW 1.70V to 1.95V field in OCR */ +#define MMC_OCR_V170TO195_MASK (0x00000080U) +/*! @brief The bit shift for VOLTAGE WINDOW 2.00V to 2.60V field in OCR */ +#define MMC_OCR_V200TO260_SHIFT (8U) +/*! @brief The bit mask for VOLTAGE WINDOW 2.00V to 2.60V field in OCR */ +#define MMC_OCR_V200TO260_MASK (0x00007F00U) +/*! @brief The bit shift for VOLTAGE WINDOW 2.70V to 3.60V field in OCR */ +#define MMC_OCR_V270TO360_SHIFT (15U) +/*! @brief The bit mask for VOLTAGE WINDOW 2.70V to 3.60V field in OCR */ +#define MMC_OCR_V270TO360_MASK (0x00FF8000U) +/*! @brief The bit shift for ACCESS MODE field in OCR */ +#define MMC_OCR_ACCESS_MODE_SHIFT (29U) +/*! @brief The bit mask for ACCESS MODE field in OCR */ +#define MMC_OCR_ACCESS_MODE_MASK (0x60000000U) +/*! @brief The bit shift for BUSY field in OCR */ +#define MMC_OCR_BUSY_SHIFT (31U) +/*! @brief The bit mask for BUSY field in OCR */ +#define MMC_OCR_BUSY_MASK (1U << MMC_OCR_BUSY_SHIFT) + +/*! @brief MMC card access mode(Access mode in OCR). */ +typedef enum _mmc_access_mode +{ + kMMC_AccessModeByte = 0U, /*!< The card should be accessed as byte */ + kMMC_AccessModeSector = 2U, /*!< The card should be accessed as sector */ +} mmc_access_mode_t; + +/*! @brief MMC card voltage window(VDD voltage window in OCR). */ +typedef enum _mmc_voltage_window +{ + kMMC_VoltageWindowNone = 0U, /*!< voltage window is not define by user*/ + kMMC_VoltageWindow120 = 0x01U, /*!< Voltage window is 1.20V */ + kMMC_VoltageWindow170to195 = 0x02U, /*!< Voltage window is 1.70V to 1.95V */ + kMMC_VoltageWindows270to360 = 0x1FFU, /*!< Voltage window is 2.70V to 3.60V */ +} mmc_voltage_window_t; + +/*! @brief CSD structure version(CSD_STRUCTURE in CSD). */ +typedef enum _mmc_csd_structure_version +{ + kMMC_CsdStrucureVersion10 = 0U, /*!< CSD version No. 1.0 */ + kMMC_CsdStrucureVersion11 = 1U, /*!< CSD version No. 1.1 */ + kMMC_CsdStrucureVersion12 = 2U, /*!< CSD version No. 1.2 */ + kMMC_CsdStrucureVersionInExtcsd = 3U, /*!< Version coded in Extended CSD */ +} mmc_csd_structure_version_t; + +/*! @brief MMC card specification version(SPEC_VERS in CSD). */ +typedef enum _mmc_specification_version +{ + kMMC_SpecificationVersion0 = 0U, /*!< Allocated by MMCA */ + kMMC_SpecificationVersion1 = 1U, /*!< Allocated by MMCA */ + kMMC_SpecificationVersion2 = 2U, /*!< Allocated by MMCA */ + kMMC_SpecificationVersion3 = 3U, /*!< Allocated by MMCA */ + kMMC_SpecificationVersion4 = 4U, /*!< Version 4.1/4.2/4.3/4.41-4.5-4.51-5.0 */ +} mmc_specification_version_t; + +/*! @brief The bit shift for FREQUENCY UNIT field in TRANSFER SPEED(TRAN-SPEED in Extended CSD) */ +#define MMC_TRANSFER_SPEED_FREQUENCY_UNIT_SHIFT (0U) +/*! @brief The bit mask for FRQEUENCY UNIT in TRANSFER SPEED */ +#define MMC_TRANSFER_SPEED_FREQUENCY_UNIT_MASK (0x07U) +/*! @brief The bit shift for MULTIPLIER field in TRANSFER SPEED */ +#define MMC_TRANSFER_SPEED_MULTIPLIER_SHIFT (3U) +/*! @brief The bit mask for MULTIPLIER field in TRANSFER SPEED */ +#define MMC_TRANSFER_SPEED_MULTIPLIER_MASK (0x78U) + +/*! @brief Read the value of FREQUENCY UNIT in TRANSFER SPEED. */ +#define READ_MMC_TRANSFER_SPEED_FREQUENCY_UNIT(CSD) \ + ((((CSD).transferSpeed) & MMC_TRANSFER_SPEED_FREQUENCY_UNIT_MASK) >> MMC_TRANSFER_SPEED_FREQUENCY_UNIT_SHIFT) +/*! @brief Read the value of MULTIPLER filed in TRANSFER SPEED. */ +#define READ_MMC_TRANSFER_SPEED_MULTIPLIER(CSD) \ + ((((CSD).transferSpeed) & MMC_TRANSFER_SPEED_MULTIPLIER_MASK) >> MMC_TRANSFER_SPEED_MULTIPLIER_SHIFT) + +/*! @brief MMC card Extended CSD fix version(EXT_CSD_REV in Extended CSD) + * @anchor _mmc_extended_csd_revision + */ +enum +{ + kMMC_ExtendedCsdRevision10 = 0U, /*!< Revision 1.0 */ + kMMC_ExtendedCsdRevision11 = 1U, /*!< Revision 1.1 */ + kMMC_ExtendedCsdRevision12 = 2U, /*!< Revision 1.2 */ + kMMC_ExtendedCsdRevision13 = 3U, /*!< Revision 1.3 MMC4.3*/ + kMMC_ExtendedCsdRevision14 = 4U, /*!< Revision 1.4 obsolete*/ + kMMC_ExtendedCsdRevision15 = 5U, /*!< Revision 1.5 MMC4.41*/ + kMMC_ExtendedCsdRevision16 = 6U, /*!< Revision 1.6 MMC4.5*/ + kMMC_ExtendedCsdRevision17 = 7U, /*!< Revision 1.7 MMC5.0 */ +}; + +/*! @brief MMC card command set(COMMAND_SET in Extended CSD) */ +typedef enum _mmc_command_set +{ + kMMC_CommandSetStandard = 0U, /*!< Standard MMC */ + kMMC_CommandSet1 = 1U, /*!< Command set 1 */ + kMMC_CommandSet2 = 2U, /*!< Command set 2 */ + kMMC_CommandSet3 = 3U, /*!< Command set 3 */ + kMMC_CommandSet4 = 4U, /*!< Command set 4 */ +} mmc_command_set_t; + +/*! @brief boot support(BOOT_INFO in Extended CSD) + * @anchor _mmc_support_boot_mode + */ +enum +{ + kMMC_SupportAlternateBoot = 1U, /*!< support alternative boot mode*/ + kMMC_SupportDDRBoot = 2U, /*!< support DDR boot mode*/ + kMMC_SupportHighSpeedBoot = 4U, /*!< support high speed boot mode*/ +}; +/*! @brief The power class value bit mask when bus in 4 bit mode */ +#define MMC_POWER_CLASS_4BIT_MASK (0x0FU) +/*! @brief The power class current value bit mask when bus in 8 bit mode */ +#define MMC_POWER_CLASS_8BIT_MASK (0xF0U) +/*! @brief mmc cache control enable*/ +#define MMC_CACHE_CONTROL_ENABLE (1U) +/*! @brief mmc cache flush */ +#define MMC_CACHE_TRIGGER_FLUSH (1U) + +/*! @brief MMC card high-speed timing(HS_TIMING in Extended CSD) */ +typedef enum _mmc_high_speed_timing +{ + kMMC_HighSpeedTimingNone = 0U, /*!< MMC card using none high-speed timing */ + kMMC_HighSpeedTiming = 1U, /*!< MMC card using high-speed timing */ + kMMC_HighSpeed200Timing = 2U, /*!< MMC card high speed 200 timing*/ + kMMC_HighSpeed400Timing = 3U, /*!< MMC card high speed 400 timing*/ + kMMC_EnhanceHighSpeed400Timing = 4U, /*!< MMC card high speed 400 timing*/ +} mmc_high_speed_timing_t; + +/*! @brief The number of data bus width type */ +#define MMC_DATA_BUS_WIDTH_TYPE_NUMBER (3U) +/*! @brief MMC card data bus width(BUS_WIDTH in Extended CSD) */ +typedef enum _mmc_data_bus_width +{ + kMMC_DataBusWidth1bit = 0U, /*!< MMC data bus width is 1 bit */ + kMMC_DataBusWidth4bit = 1U, /*!< MMC data bus width is 4 bits */ + kMMC_DataBusWidth8bit = 2U, /*!< MMC data bus width is 8 bits */ + kMMC_DataBusWidth4bitDDR = 5U, /*!< MMC data bus width is 4 bits ddr */ + kMMC_DataBusWidth8bitDDR = 6U, /*!< MMC data bus width is 8 bits ddr */ + kMMC_DataBusWidth8bitDDRSTROBE = 0x86U, /*!< MMC data bus width is 8 bits ddr strobe mode */ +} mmc_data_bus_width_t; + +/*! @brief MMC card boot partition enabled(BOOT_PARTITION_ENABLE in Extended CSD) */ +typedef enum _mmc_boot_partition_enable +{ + kMMC_BootPartitionEnableNot = 0U, /*!< Device not boot enabled (default) */ + kMMC_BootPartitionEnablePartition1 = 1U, /*!< Boot partition 1 enabled for boot */ + kMMC_BootPartitionEnablePartition2 = 2U, /*!< Boot partition 2 enabled for boot */ + kMMC_BootPartitionEnableUserAera = 7U, /*!< User area enabled for boot */ +} mmc_boot_partition_enable_t; + +/*! @brief boot mode configuration + * Note: HS200 & HS400 is not support during BOOT operation. + */ +typedef enum _mmc_boot_timing_mode +{ + kMMC_BootModeSDRWithDefaultTiming = 0U, /*!< boot mode single data rate with backward compatiable timings */ + kMMC_BootModeSDRWithHighSpeedTiming = 1U, /*!< boot mode single data rate with high speed timing */ + kMMC_BootModeDDRTiming = 2U, /*!< boot mode dual date rate */ +} mmc_boot_timing_mode_t; + +/*! @brief MMC card boot partition write protect configurations + * All the bits in BOOT_WP register, except the two R/W bits B_PERM_WP_DIS + * and B_PERM_WP_EN, shall only be written once per power cycle.The protection + * mdde intended for both boot areas will be set with a single write. + */ +typedef enum _mmc_boot_partition_wp +{ + kMMC_BootPartitionWPDisable = 0x50U, /*!< boot partition write protection disable */ + kMMC_BootPartitionPwrWPToBothPartition = + 0x01U, /*!< power on period write protection apply to both boot partitions */ + kMMC_BootPartitionPermWPToBothPartition = 0x04U, /*!< permanent write protection apply to both boot partitions */ + + kMMC_BootPartitionPwrWPToPartition1 = (1U << 7U) | 1U, /*!< power on period write protection apply to partition1 */ + kMMC_BootPartitionPwrWPToPartition2 = (1U << 7U) | 3U, /*!< power on period write protection apply to partition2 */ + + kMMC_BootPartitionPermWPToPartition1 = + (1U << 7U) | (1U << 2U), /*!< permanent write protection apply to partition1 */ + kMMC_BootPartitionPermWPToPartition2 = + (1U << 7U) | (3U << 2U), /*!< permanent write protection apply to partition2 */ + + kMMC_BootPartitionPermWPToPartition1PwrWPToPartition2 = + (1U << 7U) | (1U << 2U) | + 3U, /*!< permanent write protection apply to partition1, power on period write protection apply to partition2 */ + kMMC_BootPartitionPermWPToPartition2PwrWPToPartition1 = + (1U << 7U) | (3U << 2U) | + 1U, /*!< permanent write protection apply to partition2, power on period write protection apply to partition1 */ +} mmc_boot_partition_wp_t; + +/*! @brief MMC card boot partition write protect status + * @anchor _mmc_boot_partition_wp_status + */ +enum +{ + kMMC_BootPartitionNotProtected = 0U, /*!< boot partition not protected */ + kMMC_BootPartitionPwrProtected = 1U, /*!< boot partition is power on period write protected */ + kMMC_BootPartitionPermProtected = 2U, /*!< boot partition is permanently protected */ +}; + +/*! @brief MMC card partition to be accessed(BOOT_PARTITION_ACCESS in Extended CSD) */ +typedef enum _mmc_access_partition +{ + kMMC_AccessPartitionUserAera = 0U, /*!< No access to boot partition (default), normal partition */ + kMMC_AccessPartitionBoot1 = 1U, /*!< Read/Write boot partition 1 */ + kMMC_AccessPartitionBoot2 = 2U, /*!< Read/Write boot partition 2*/ + kMMC_AccessRPMB = 3U, /*!< Replay protected mem block */ + kMMC_AccessGeneralPurposePartition1 = 4U, /*!< access to general purpose partition 1 */ + kMMC_AccessGeneralPurposePartition2 = 5U, /*!< access to general purpose partition 2 */ + kMMC_AccessGeneralPurposePartition3 = 6U, /*!< access to general purpose partition 3 */ + kMMC_AccessGeneralPurposePartition4 = 7U, /*!< access to general purpose partition 4 */ +} mmc_access_partition_t; + +/*! @brief The bit shift for PARTITION ACCESS filed in BOOT CONFIG (BOOT_CONFIG in Extend CSD) */ +#define MMC_PARTITION_CONFIG_PARTITION_ACCESS_SHIFT (0U) +/*! @brief The bit mask for PARTITION ACCESS field in BOOT CONFIG */ +#define MMC_PARTITION_CONFIG_PARTITION_ACCESS_MASK (0x00000007U) +/*! @brief The bit shift for PARTITION ENABLE field in BOOT CONFIG */ +#define MMC_PARTITION_CONFIG_PARTITION_ENABLE_SHIFT (3U) +/*! @brief The bit mask for PARTITION ENABLE field in BOOT CONFIG */ +#define MMC_PARTITION_CONFIG_PARTITION_ENABLE_MASK (0x00000038U) +/*! @brief The bit shift for ACK field in BOOT CONFIG */ +#define MMC_PARTITION_CONFIG_BOOT_ACK_SHIFT (6U) +/*! @brief The bit mask for ACK field in BOOT CONFIG */ +#define MMC_PARTITION_CONFIG_BOOT_ACK_MASK (0x00000040U) +/*! @brief The bit shift for BOOT BUS WIDTH field in BOOT CONFIG */ +#define MMC_BOOT_BUS_CONDITION_BUS_WIDTH_SHIFT (0U) +/*! @brief The bit mask for BOOT BUS WIDTH field in BOOT CONFIG */ +#define MMC_BOOT_BUS_CONDITION_BUS_WIDTH_MASK (3U) +/*! @brief The bit shift for BOOT BUS WIDTH RESET field in BOOT CONFIG */ +#define MMC_BOOT_BUS_CONDITION_RESET_BUS_CONDITION_SHIFT (2U) +/*! @brief The bit mask for BOOT BUS WIDTH RESET field in BOOT CONFIG */ +#define MMC_BOOT_BUS_CONDITION_RESET_BUS_CONDITION_MASK (4U) +/*! @brief The bit shift for BOOT MODE field in BOOT CONFIG */ +#define MMC_BOOT_BUS_CONDITION_BOOT_MODE_SHIFT (3U) +/*! @brief The bit mask for BOOT MODE field in BOOT CONFIG */ +#define MMC_BOOT_BUS_CONDITION_BOOT_MODE_MASK (0x18U) + +/*! @brief MMC card CSD register flags + * @anchor _mmc_csd_flag + */ +enum +{ + kMMC_CsdReadBlockPartialFlag = (1U << 0U), /*!< Partial blocks for read allowed */ + kMMC_CsdWriteBlockMisalignFlag = (1U << 1U), /*!< Write block misalignment */ + kMMC_CsdReadBlockMisalignFlag = (1U << 2U), /*!< Read block misalignment */ + kMMC_CsdDsrImplementedFlag = (1U << 3U), /*!< DSR implemented */ + kMMC_CsdWriteProtectGroupEnabledFlag = (1U << 4U), /*!< Write protect group enabled */ + kMMC_CsdWriteBlockPartialFlag = (1U << 5U), /*!< Partial blocks for write allowed */ + kMMC_ContentProtectApplicationFlag = (1U << 6U), /*!< Content protect application */ + kMMC_CsdFileFormatGroupFlag = (1U << 7U), /*!< File format group */ + kMMC_CsdCopyFlag = (1U << 8U), /*!< Copy flag */ + kMMC_CsdPermanentWriteProtectFlag = (1U << 9U), /*!< Permanent write protection */ + kMMC_CsdTemporaryWriteProtectFlag = (1U << 10U), /*!< Temporary write protection */ +}; + +/*! @brief Extended CSD register access mode(Access mode in CMD6). */ +typedef enum _mmc_extended_csd_access_mode +{ + kMMC_ExtendedCsdAccessModeCommandSet = 0U, /*!< Command set related setting */ + kMMC_ExtendedCsdAccessModeSetBits = 1U, /*!< Set bits in specific byte in Extended CSD */ + kMMC_ExtendedCsdAccessModeClearBits = 2U, /*!< Clear bits in specific byte in Extended CSD */ + kMMC_ExtendedCsdAccessModeWriteBits = 3U, /*!< Write a value to specific byte in Extended CSD */ +} mmc_extended_csd_access_mode_t; + +/*! @brief EXT CSD byte index */ +typedef enum _mmc_extended_csd_index +{ + kMMC_ExtendedCsdIndexFlushCache = 32U, /*!< flush cache */ + kMMC_ExtendedCsdIndexCacheControl = 33U, /*!< cache control */ + kMMC_ExtendedCsdIndexBootPartitionWP = 173U, /*!< Boot partition write protect */ + kMMC_ExtendedCsdIndexEraseGroupDefinition = 175U, /*!< Erase Group Def */ + kMMC_ExtendedCsdIndexBootBusConditions = 177U, /*!< Boot Bus conditions */ + kMMC_ExtendedCsdIndexBootConfigWP = 178U, /*!< Boot config write protect */ + kMMC_ExtendedCsdIndexPartitionConfig = 179U, /*!< Partition Config, before BOOT_CONFIG */ + kMMC_ExtendedCsdIndexBusWidth = 183U, /*!< Bus Width */ + kMMC_ExtendedCsdIndexHighSpeedTiming = 185U, /*!< High-speed Timing */ + kMMC_ExtendedCsdIndexPowerClass = 187U, /*!< Power Class */ + kMMC_ExtendedCsdIndexCommandSet = 191U, /*!< Command Set */ +} mmc_extended_csd_index_t; + +/*! @brief mmc driver strength + * @anchor _mmc_driver_strength + */ +enum +{ + kMMC_DriverStrength0 = 0U, /*!< Driver type0 ,nominal impedance 50ohm */ + kMMC_DriverStrength1 = 1U, /*!< Driver type1 ,nominal impedance 33ohm */ + kMMC_DriverStrength2 = 2U, /*!< Driver type2 ,nominal impedance 66ohm */ + kMMC_DriverStrength3 = 3U, /*!< Driver type3 ,nominal impedance 100ohm */ + kMMC_DriverStrength4 = 4U, /*!< Driver type4 ,nominal impedance 40ohm */ +}; + +/*! @brief mmc extended csd flags*/ +typedef enum _mmc_extended_csd_flags +{ + kMMC_ExtCsdExtPartitionSupport = (1 << 0U), /*!< partitioning support[160] */ + kMMC_ExtCsdEnhancePartitionSupport = (1 << 1U), /*!< partitioning support[160] */ + kMMC_ExtCsdPartitioningSupport = (1 << 2U), /*!< partitioning support[160] */ + kMMC_ExtCsdPrgCIDCSDInDDRModeSupport = (1 << 3U), /*!< CMD26 and CMD27 are support dual data rate [130]*/ + kMMC_ExtCsdBKOpsSupport = (1 << 4U), /*!< background operation feature support [502]*/ + kMMC_ExtCsdDataTagSupport = (1 << 5U), /*!< data tag support[499]*/ + kMMC_ExtCsdModeOperationCodeSupport = (1 << 6U), /*!< mode operation code support[493]*/ +} mmc_extended_csd_flags_t; + +/*! @brief MMC card boot mode */ +typedef enum _mmc_boot_mode +{ + kMMC_BootModeNormal = 0U, /*!< Normal boot */ + kMMC_BootModeAlternative = 1U, /*!< Alternative boot */ +} mmc_boot_mode_t; + +/*! @brief The length of Extended CSD register, unit as bytes. */ +#define MMC_EXTENDED_CSD_BYTES (512U) + +/*! @brief MMC card default relative address */ +#define MMC_DEFAULT_RELATIVE_ADDRESS (2U) + +/*! @brief SD card product name length united as bytes. */ +#define SD_PRODUCT_NAME_BYTES (5U) + +/*! @brief sdio card FBR register */ +typedef struct _sdio_fbr +{ + uint8_t flags; /*!< current io flags */ + uint8_t ioStdFunctionCode; /*!< current io standard function code */ + uint8_t ioExtFunctionCode; /*!< current io extended function code*/ + uint32_t ioPointerToCIS; /*!< current io pointer to CIS */ + uint32_t ioPointerToCSA; /*!< current io pointer to CSA*/ + uint16_t ioBlockSize; /*!< current io block size */ +} sdio_fbr_t; + +/*! @brief sdio card common CIS */ +typedef struct _sdio_common_cis +{ + /* manufacturer identification string tuple */ + uint16_t mID; /*!< manufacturer code */ + uint16_t mInfo; /*!< manufacturer information */ + + /*function identification tuple */ + uint8_t funcID; /*!< function ID */ + + /* function extension tuple */ + uint16_t fn0MaxBlkSize; /*!< function 0 max block size */ + uint8_t maxTransSpeed; /*!< max data transfer speed for all function */ + +} sdio_common_cis_t; + +/*! @brief sdio card function CIS */ +typedef struct _sdio_func_cis +{ + /*function identification tuple */ + uint8_t funcID; /*!< function ID */ + + /* function extension tuple */ + uint8_t funcInfo; /*!< function info */ + uint8_t ioVersion; /*!< level of application specification this io support */ + uint32_t cardPSN; /*!< product serial number */ + uint32_t ioCSASize; /*!< avaliable CSA size for io */ + uint8_t ioCSAProperty; /*!< CSA property */ + uint16_t ioMaxBlockSize; /*!< io max transfer data size */ + uint32_t ioOCR; /*!< io ioeration condition */ + uint8_t ioOPMinPwr; /*!< min current in operation mode */ + uint8_t ioOPAvgPwr; /*!< average current in operation mode */ + uint8_t ioOPMaxPwr; /*!< max current in operation mode */ + uint8_t ioSBMinPwr; /*!< min current in standby mode */ + uint8_t ioSBAvgPwr; /*!< average current in standby mode */ + uint8_t ioSBMaxPwr; /*!< max current in standby mode */ + + uint16_t ioMinBandWidth; /*!< io min transfer bandwidth */ + uint16_t ioOptimumBandWidth; /*!< io optimum transfer bandwidth */ + uint16_t ioReadyTimeout; /*!< timeout value from enalbe to ready */ + uint16_t ioHighCurrentAvgCurrent; /*!< the average peak current (mA) + when IO operating in high current mode */ + uint16_t ioHighCurrentMaxCurrent; /*!< the max peak current (mA) + when IO operating in high current mode */ + uint16_t ioLowCurrentAvgCurrent; /*!< the average peak current (mA) + when IO operating in lower current mode */ + uint16_t ioLowCurrentMaxCurrent; /*!< the max peak current (mA) + when IO operating in lower current mode */ +} sdio_func_cis_t; + +/*! @brief SD AU start value */ +#define SD_AU_START_VALUE (1U) +/*! @brief SD UHS AU start value */ +#define SD_UHS_AU_START_VALUE (7U) + +/*! @brief SD card status */ +typedef struct _sd_status +{ + uint8_t busWidth; /*!< current buswidth */ + uint8_t secureMode; /*!< secured mode */ + uint16_t cardType; /*!< sdcard type */ + uint32_t protectedSize; /*!< size of protected area */ + uint8_t speedClass; /*!< speed class of card */ + uint8_t performanceMove; /*!< Performance of move indicated by 1[MB/S]step */ + uint8_t auSize; /*!< size of AU */ + uint16_t eraseSize; /*!< number of AUs to be erased at a time */ + uint8_t eraseTimeout; /*!< timeout value for erasing areas specified by UNIT OF ERASE AU */ + uint8_t eraseOffset; /*!< fixed offset value added to erase time */ + uint8_t uhsSpeedGrade; /*!< speed grade for UHS mode */ + uint8_t uhsAuSize; /*!< size of AU for UHS mode */ +} sd_status_t; + +/*! @brief SD card CID register */ +typedef struct _sd_cid +{ + uint8_t manufacturerID; /*!< Manufacturer ID [127:120] */ + uint16_t applicationID; /*!< OEM/Application ID [119:104] */ + uint8_t productName[SD_PRODUCT_NAME_BYTES]; /*!< Product name [103:64] */ + uint8_t productVersion; /*!< Product revision [63:56] */ + uint32_t productSerialNumber; /*!< Product serial number [55:24] */ + uint16_t manufacturerData; /*!< Manufacturing date [19:8] */ +} sd_cid_t; + +/*! @brief SD card CSD register */ +typedef struct _sd_csd +{ + uint8_t csdStructure; /*!< CSD structure [127:126] */ + uint8_t dataReadAccessTime1; /*!< Data read access-time-1 [119:112] */ + uint8_t dataReadAccessTime2; /*!< Data read access-time-2 in clock cycles (NSAC*100) [111:104] */ + uint8_t transferSpeed; /*!< Maximum data transfer rate [103:96] */ + uint16_t cardCommandClass; /*!< Card command classes [95:84] */ + uint8_t readBlockLength; /*!< Maximum read data block length [83:80] */ + uint16_t flags; /*!< Flags in _sd_csd_flag */ + uint32_t deviceSize; /*!< Device size [73:62] */ + /* Following fields from 'readCurrentVddMin' to 'deviceSizeMultiplier' exist in CSD version 1 */ + uint8_t readCurrentVddMin; /*!< Maximum read current at VDD min [61:59] */ + uint8_t readCurrentVddMax; /*!< Maximum read current at VDD max [58:56] */ + uint8_t writeCurrentVddMin; /*!< Maximum write current at VDD min [55:53] */ + uint8_t writeCurrentVddMax; /*!< Maximum write current at VDD max [52:50] */ + uint8_t deviceSizeMultiplier; /*!< Device size multiplier [49:47] */ + + uint8_t eraseSectorSize; /*!< Erase sector size [45:39] */ + uint8_t writeProtectGroupSize; /*!< Write protect group size [38:32] */ + uint8_t writeSpeedFactor; /*!< Write speed factor [28:26] */ + uint8_t writeBlockLength; /*!< Maximum write data block length [25:22] */ + uint8_t fileFormat; /*!< File format [11:10] */ +} sd_csd_t; + +/*! @brief The bit shift for RATE UNIT field in TRANSFER SPEED */ +#define SD_TRANSFER_SPEED_RATE_UNIT_SHIFT (0U) +/*! @brief The bit mask for RATE UNIT field in TRANSFER SPEED */ +#define SD_TRANSFER_SPEED_RATE_UNIT_MASK (0x07U) +/*! @brief The bit shift for TIME VALUE field in TRANSFER SPEED */ +#define SD_TRANSFER_SPEED_TIME_VALUE_SHIFT (2U) +/*! @brief The bit mask for TIME VALUE field in TRANSFER SPEED */ +#define SD_TRANSFER_SPEED_TIME_VALUE_MASK (0x78U) +/*! @brief Read the value of FREQUENCY UNIT in TRANSFER SPEED field */ +#define SD_RD_TRANSFER_SPEED_RATE_UNIT(x) \ + (((x.transferSpeed) & SD_TRANSFER_SPEED_RATE_UNIT_MASK) >> SD_TRANSFER_SPEED_RATE_UNIT_SHIFT) +/*! @brief Read the value of TIME VALUE in TRANSFER SPEED field */ +#define SD_RD_TRANSFER_SPEED_TIME_VALUE(x) \ + (((x.transferSpeed) & SD_TRANSFER_SPEED_TIME_VALUE_MASK) >> SD_TRANSFER_SPEED_TIME_VALUE_SHIFT) + +/*! @brief SD card SCR register */ +typedef struct _sd_scr +{ + uint8_t scrStructure; /*!< SCR Structure [63:60] */ + uint8_t sdSpecification; /*!< SD memory card specification version [59:56] */ + uint16_t flags; /*!< SCR flags in _sd_scr_flag */ + uint8_t sdSecurity; /*!< Security specification supported [54:52] */ + uint8_t sdBusWidths; /*!< Data bus widths supported [51:48] */ + uint8_t extendedSecurity; /*!< Extended security support [46:43] */ + uint8_t commandSupport; /*!< Command support bits [33:32] 33-support CMD23, 32-support cmd20*/ + uint32_t reservedForManufacturer; /*!< reserved for manufacturer usage [31:0] */ +} sd_scr_t; + +/*! @brief MMC card product name length united as bytes. */ +#define MMC_PRODUCT_NAME_BYTES (6U) +/*! @brief MMC card CID register. */ +typedef struct _mmc_cid +{ + uint8_t manufacturerID; /*!< Manufacturer ID */ + uint16_t applicationID; /*!< OEM/Application ID */ + uint8_t productName[MMC_PRODUCT_NAME_BYTES]; /*!< Product name */ + uint8_t productVersion; /*!< Product revision */ + uint32_t productSerialNumber; /*!< Product serial number */ + uint8_t manufacturerData; /*!< Manufacturing date */ +} mmc_cid_t; + +/*! @brief MMC card CSD register. */ +typedef struct _mmc_csd +{ + uint8_t csdStructureVersion; /*!< CSD structure [127:126] */ + uint8_t systemSpecificationVersion; /*!< System specification version [125:122] */ + uint8_t dataReadAccessTime1; /*!< Data read access-time 1 [119:112] */ + uint8_t dataReadAccessTime2; /*!< Data read access-time 2 in CLOCK cycles (NSAC*100) [111:104] */ + uint8_t transferSpeed; /*!< Max. bus clock frequency [103:96] */ + uint16_t cardCommandClass; /*!< card command classes [95:84] */ + uint8_t readBlockLength; /*!< Max. read data block length [83:80] */ + uint16_t flags; /*!< Contain flags in _mmc_csd_flag */ + uint16_t deviceSize; /*!< Device size [73:62] */ + uint8_t readCurrentVddMin; /*!< Max. read current @ VDD min [61:59] */ + uint8_t readCurrentVddMax; /*!< Max. read current @ VDD max [58:56] */ + uint8_t writeCurrentVddMin; /*!< Max. write current @ VDD min [55:53] */ + uint8_t writeCurrentVddMax; /*!< Max. write current @ VDD max [52:50] */ + uint8_t deviceSizeMultiplier; /*!< Device size multiplier [49:47] */ + uint8_t eraseGroupSize; /*!< Erase group size [46:42] */ + uint8_t eraseGroupSizeMultiplier; /*!< Erase group size multiplier [41:37] */ + uint8_t writeProtectGroupSize; /*!< Write protect group size [36:32] */ + uint8_t defaultEcc; /*!< Manufacturer default ECC [30:29] */ + uint8_t writeSpeedFactor; /*!< Write speed factor [28:26] */ + uint8_t maxWriteBlockLength; /*!< Max. write data block length [25:22] */ + uint8_t fileFormat; /*!< File format [11:10] */ + uint8_t eccCode; /*!< ECC code [9:8] */ +} mmc_csd_t; + +/*! @brief MMC card Extended CSD register (unit: byte). */ +typedef struct _mmc_extended_csd +{ + /*uint8_t SecureRemoveType;*/ /*!< secure removal type[16]*/ + /*uint8_t enProductStateAware;*/ /*!< product state awareness enablement[17]*/ + /*uint32_t maxPreLoadDataSize;*/ /*!< max preload data size[21-18]*/ + /*uint32_t preLoadDataSize;*/ /*!< pre-load data size[25-22]*/ + /*uint8_t ffuStatus;*/ /*!< FFU status [26]*/ + /*uint8_t modeOperationCode;*/ /*!< mode operation code[29]*/ + /*uint8_t modeConfig;*/ /*!< mode config [30]*/ + uint8_t cacheCtrl; /*!< control to turn on/off cache[33]*/ + /*uint8_t pwroffNotify;*/ /*!< power off notification[34]*/ + /*uint8_t packedCmdFailIndex;*/ /*!< packed cmd fail index [35]*/ + /*uint8_t packedCmdStatus;*/ /*!< packed cmd status[36]*/ + /*uint32_t contextConfig[4U];*/ /*!< context configuration[51-37]*/ + /*uint16_t extPartitionAttr;*/ /*!< extended partitions attribut[53-52]*/ + /*uint16_t exceptEventStatus;*/ /*!< exception events status[55-54]*/ + /*uint16_t exceptEventControl;*/ /*!< exception events control[57-56]*/ + /*uint8_t toReleaseAddressedGroup;*/ /*!< number of group to be released[58]*/ + /*uint8_t class6CmdCtrl;*/ /*!< class 6 command control[59]*/ + /*uint8_t intTimeoutEmu;*/ /*!< 1st initiallization after disabling sector size emu[60]*/ + /*uint8_t sectorSize;*/ /*!< sector size[61] */ + /*uint8_t sectorSizeEmu;*/ /*!< sector size emulation[62]*/ + /*uint8_t nativeSectorSize;*/ /*!< native sector size[63]*/ + /*uint8_t periodWakeup;*/ /*!< period wakeup [131]*/ + /*uint8_t tCASESupport;*/ /*!< package case temperature is controlled[132]*/ + /*uint8_t productionStateAware;*/ /*!< production state awareness[133]*/ + /*uint32_t enhanceUsrDataStartAddr;*/ /*!< enhanced user data start addr [139-136]*/ + /*uint32_t enhanceUsrDataSize;*/ /*!< enhanced user data area size[142-140]*/ + /*uint32_t generalPartitionSize[3];*/ /*!< general purpose partition size[154-143]*/ + uint8_t partitionAttribute; /*!< partition attribute [156]*/ + /*uint32_t maxEnhanceAreaSize;*/ /*!< max enhance area size [159-157]*/ + /*uint8_t hpiManagementEn;*/ /*!< HPI management [161]*/ + /*uint8_t writeReliabilityParameter;*/ /*!< write reliability parameter register[166] */ + /*uint8_t writeReliabilitySet;*/ /*!< write reliability setting register[167] */ + /*uint8_t rpmbSizeMult;*/ /*!< RPMB size multi [168]*/ + /*uint8_t fwConfig;*/ /*!< FW configuration[169]*/ + uint8_t userWP; /*!< user write protect register[171] */ + uint8_t bootPartitionWP; /*!< boot write protect register[173]*/ + uint8_t bootWPStatus; /*!< boot write protect status register[174]*/ + uint8_t highDensityEraseGroupDefinition; /*!< High-density erase group definition [175] */ + uint8_t bootDataBusConditions; /*!< Boot bus conditions [177] */ + uint8_t bootConfigProtect; /*!< Boot config protection [178]*/ + uint8_t partitionConfig; /*!< Boot configuration [179] */ + uint8_t eraseMemoryContent; /*!< Erased memory content [181] */ + uint8_t dataBusWidth; /*!< Data bus width mode [183] */ + uint8_t highSpeedTiming; /*!< High-speed interface timing [185] */ + uint8_t powerClass; /*!< Power class [187] */ + uint8_t commandSetRevision; /*!< Command set revision [189] */ + uint8_t commandSet; /*!< Command set [191] */ + uint8_t extendecCsdVersion; /*!< Extended CSD revision [192] */ + uint8_t csdStructureVersion; /*!< CSD structure version [194] */ + uint8_t cardType; /*!< Card Type [196] */ + uint8_t ioDriverStrength; /*!< IO driver strength [197] */ + /*uint8_t OutofInterruptBusyTiming;*/ /*!< out of interrupt busy timing [198] */ + /*uint8_t partitionSwitchTiming;*/ /*!< partition switch timing [199] */ + uint8_t powerClass52MHz195V; /*!< Power Class for 52MHz @ 1.95V [200] */ + uint8_t powerClass26MHz195V; /*!< Power Class for 26MHz @ 1.95V [201] */ + uint8_t powerClass52MHz360V; /*!< Power Class for 52MHz @ 3.6V [202] */ + uint8_t powerClass26MHz360V; /*!< Power Class for 26MHz @ 3.6V [203] */ + uint8_t minimumReadPerformance4Bit26MHz; /*!< Minimum Read Performance for 4bit at 26MHz [205] */ + uint8_t minimumWritePerformance4Bit26MHz; /*!< Minimum Write Performance for 4bit at 26MHz [206] */ + uint8_t minimumReadPerformance8Bit26MHz4Bit52MHz; + /*!< Minimum read Performance for 8bit at 26MHz/4bit @52MHz [207] */ + uint8_t minimumWritePerformance8Bit26MHz4Bit52MHz; + /*!< Minimum Write Performance for 8bit at 26MHz/4bit @52MHz [208] */ + uint8_t minimumReadPerformance8Bit52MHz; /*!< Minimum Read Performance for 8bit at 52MHz [209] */ + uint8_t minimumWritePerformance8Bit52MHz; /*!< Minimum Write Performance for 8bit at 52MHz [210] */ + uint32_t sectorCount; /*!< Sector Count [215:212] */ + /*uint8_t sleepNotificationTimeout;*/ /*!< sleep notification timeout [216]*/ + uint8_t sleepAwakeTimeout; /*!< Sleep/awake timeout [217] */ + /*uint8_t productionStateAwareTimeout;*/ /*!< Production state awareness timeout [218]*/ + uint8_t sleepCurrentVCCQ; /*!< Sleep current (VCCQ) [219] */ + uint8_t sleepCurrentVCC; /*!< Sleep current (VCC) [220] */ + uint8_t highCapacityWriteProtectGroupSize; /*!< High-capacity write protect group size [221] */ + uint8_t reliableWriteSectorCount; /*!< Reliable write sector count [222] */ + uint8_t highCapacityEraseTimeout; /*!< High-capacity erase timeout [223] */ + uint8_t highCapacityEraseUnitSize; /*!< High-capacity erase unit size [224] */ + uint8_t accessSize; /*!< Access size [225] */ + /*uint8_t secureTrimMultiplier;*/ /*!< secure trim multiplier[229]*/ + /*uint8_t secureEraseMultiplier;*/ /*!< secure erase multiplier[230]*/ + /*uint8_t secureFeatureSupport;*/ /*!< secure feature support[231]*/ + /*uint32_t trimMultiplier;*/ /*!< trim multiplier[232]*/ + uint8_t minReadPerformance8bitAt52MHZDDR; /*!< Minimum read performance for 8bit at DDR 52MHZ[234]*/ + uint8_t minWritePerformance8bitAt52MHZDDR; /*!< Minimum write performance for 8bit at DDR 52MHZ[235]*/ + uint8_t powerClass200MHZVCCQ130VVCC360V; /*!< power class for 200MHZ, at VCCQ= 1.3V,VCC=3.6V[236]*/ + uint8_t powerClass200MHZVCCQ195VVCC360V; /*!< power class for 200MHZ, at VCCQ= 1.95V,VCC=3.6V[237]*/ + uint8_t powerClass52MHZDDR195V; /*!< power class for 52MHZ,DDR at Vcc 1.95V[238]*/ + uint8_t powerClass52MHZDDR360V; /*!< power class for 52MHZ,DDR at Vcc 3.6V[239]*/ + /*uint8_t iniTimeoutAP;*/ /*!< 1st initialization time after partitioning[241]*/ + /*uint32_t correctPrgSectorNum;*/ /*!< correct prg sectors number[245-242]*/ + /*uint8_t bkOpsStatus;*/ /*!< background operations status[246]*/ + /*uint8_t powerOffNotifyTimeout;*/ /*!< power off notification timeout[247]*/ + uint32_t genericCMD6Timeout; /*!< generic CMD6 timeout[248]*/ + uint32_t cacheSize; /*!< cache size[252-249]*/ + uint8_t powerClass200MHZDDR360V; /*!< power class for 200MHZ, DDR at VCC=2.6V[253]*/ + /*uint32_t fwVer[2U];*/ /*!< fw VERSION [261-254]*/ + /*uint16_t deviceVer;*/ /*!< device version[263-262]*/ + /*uint8_t optimalTrimSize;*/ /*!< optimal trim size[264]*/ + /*uint8_t optimalWriteSize;*/ /*!< optimal write size[265]*/ + /*uint8_t optimalReadSize;*/ /*!< optimal read size[266]*/ + /*uint8_t preEolInfo;*/ /*!< pre EOL information[267]*/ + /*uint8_t deviceLifeTimeEstimationA;*/ /*!< device life time estimation typeA[268]*/ + /*uint8_t deviceLifeTimeEstimationB;*/ /*!< device life time estimation typeB[269]*/ + /*uint32_t correctPrgFWSectorNum;*/ /*!< number of FW sectors correctly programmed[305-302]*/ + /*uint32_t ffuArg;*/ /*!< FFU argument[490-487]*/ + /*uint8_t operationCodeTimeout;*/ /*!< operation code timeout[491]*/ + /*uint8_t supportMode;*/ /*!< support mode [493]*/ + uint8_t extPartitionSupport; /*!< extended partition attribute support[494]*/ + /*uint8_t largeUnitSize;*/ /*!< large unit size[495]*/ + /*uint8_t contextManageCap;*/ /*!< context management capability[496]*/ + /*uint8_t tagResourceSize;*/ /*!< tag resource size[497]*/ + /*uint8_t tagUnitSize;*/ /*!< tag unit size[498]*/ + /*uint8_t maxPackedWriteCmd;*/ /*!< max packed write cmd[500]*/ + /*uint8_t maxPackedReadCmd;*/ /*!< max packed read cmd[501]*/ + /*uint8_t hpiFeature;*/ /*!< HPI feature[503]*/ + uint8_t supportedCommandSet; /*!< Supported Command Sets [504] */ + /*uint8_t extSecurityCmdError;*/ /*!< extended security commands error[505]*/ +} mmc_extended_csd_t; + +/*! @brief The bit shift for COMMAND SET field in SWITCH command. */ +#define MMC_SWITCH_COMMAND_SET_SHIFT (0U) +/*! @brief The bit mask for COMMAND set field in SWITCH command. */ +#define MMC_SWITCH_COMMAND_SET_MASK (0x00000007U) +/*! @brief The bit shift for VALUE field in SWITCH command */ +#define MMC_SWITCH_VALUE_SHIFT (8U) +/*! @brief The bit mask for VALUE field in SWITCH command */ +#define MMC_SWITCH_VALUE_MASK (0x0000FF00U) +/*! @brief The bit shift for BYTE INDEX field in SWITCH command */ +#define MMC_SWITCH_BYTE_INDEX_SHIFT (16U) +/*! @brief The bit mask for BYTE INDEX field in SWITCH command */ +#define MMC_SWITCH_BYTE_INDEX_MASK (0x00FF0000U) +/*! @brief The bit shift for ACCESS MODE field in SWITCH command */ +#define MMC_SWITCH_ACCESS_MODE_SHIFT (24U) +/*! @brief The bit mask for ACCESS MODE field in SWITCH command */ +#define MMC_SWTICH_ACCESS_MODE_MASK (0x03000000U) + +/*! @brief MMC Extended CSD configuration. */ +typedef struct _mmc_extended_csd_config +{ + mmc_command_set_t commandSet; /*!< Command set */ + uint8_t ByteValue; /*!< The value to set */ + uint8_t ByteIndex; /*!< The byte index in Extended CSD(mmc_extended_csd_index_t) */ + mmc_extended_csd_access_mode_t accessMode; /*!< Access mode */ +} mmc_extended_csd_config_t; + +/*! @brief MMC card boot configuration definition. */ +typedef struct _mmc_boot_config +{ + mmc_boot_mode_t bootMode; /*!< mmc boot mode */ + bool enableBootAck; /*!< Enable boot ACK */ + mmc_boot_partition_enable_t bootPartition; /*!< Boot partition */ + + mmc_boot_timing_mode_t bootTimingMode; /*!< boot mode */ + mmc_data_bus_width_t bootDataBusWidth; /*!< Boot data bus width */ + bool retainBootbusCondition; /*!< If retain boot bus width and boot mode conditions */ + + bool pwrBootConfigProtection; /*!< Disable the change of boot configuration register bits from at this point + until next power cycle or next H/W reset operation */ + bool premBootConfigProtection; /*!< Disable the change of boot configuration register bits permanently */ + + mmc_boot_partition_wp_t bootPartitionWP; /*!< boot partition write protect configurations */ + +} mmc_boot_config_t; + +/* @} */ + +#endif /* _FSL_SDMMC_SPEC_H_ */ diff --git a/middleware/sdmmc/host/usdhc/ChangeLogKSDK.txt b/middleware/sdmmc/host/usdhc/ChangeLogKSDK.txt new file mode 100644 index 0000000..bf22cab --- /dev/null +++ b/middleware/sdmmc/host/usdhc/ChangeLogKSDK.txt @@ -0,0 +1,34 @@ +/*! +@page middleware_log Middleware Change Log + +@section host_usdhc Host USDHC driver for MCUXpresso SDK +The current driver version is 2.5.0. + + - 2.5.0 + - Improvements + - Added cache line size alignment maintain for the read transfer. + - Added FSL_FEATURE_HAS_L1CACHE to enable cache maintain operation for the soc has LMEM cache. + - Bug Fixes + - Fixed violations of MISRA C-2012 rule 11.9, 15.7, 4.7, 16.4, 10.1, 10.3, 10.4, 11.3, 14.4, 10.6, 17.7, 16.1, 16.3. + + - 2.4.0 + - Improvements + - Added cache maintain functionality in the host driver. + - Enabled DAT3 card detect feature. + - Increase the default STD tuning counter to 60 to cover range of the tuning window. + - Added host instance capability macro. + - Added clear card inserted/removed event when card removed/inserted interrupt generated. + + - 2.3.0 + - Improvements + - Merged the host controller driver from polling/freertos/interrupt to non_blocking/blocking. + - Added SDMMC OSA layer to support muxtex access/event/delay. + + - 2.2.14 + - Bug Fixes + - Fixed uninitialized value Coverity issue. + + - 2.0.0 + - Initial version + +*/ diff --git a/middleware/sdmmc/host/usdhc/blocking/fsl_sdmmc_host.c b/middleware/sdmmc/host/usdhc/blocking/fsl_sdmmc_host.c new file mode 100644 index 0000000..67a3ea4 --- /dev/null +++ b/middleware/sdmmc/host/usdhc/blocking/fsl_sdmmc_host.c @@ -0,0 +1,620 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include "fsl_sdmmc_host.h" +#include "fsl_sdmmc_common.h" +#if ((defined __DCACHE_PRESENT) && __DCACHE_PRESENT) || (defined FSL_FEATURE_HAS_L1CACHE && FSL_FEATURE_HAS_L1CACHE) +#if !(defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) +#include "fsl_cache.h" +#endif +#endif +/******************************************************************************* + * Definitions + ******************************************************************************/ +#define SDMMCHOST_TRANSFER_COMPLETE_TIMEOUT (~0U) +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/*! + * @brief SDMMCHOST error recovery. + * @param base host base address. + */ +static void SDMMCHOST_ErrorRecovery(USDHC_Type *base); +/******************************************************************************* + * Variables + ******************************************************************************/ + +/******************************************************************************* + * Code + ******************************************************************************/ +status_t SDMMCHOST_CardIntInit(sdmmchost_t *host, void *sdioInt) +{ + host->cardInt = sdioInt; + + return kStatus_Success; +} + +status_t SDMMCHOST_CardDetectInit(sdmmchost_t *host, void *cd) +{ + USDHC_Type *base = host->hostController.base; + sd_detect_card_t *sdCD = (sd_detect_card_t *)cd; + if (cd == NULL) + { + return kStatus_Fail; + } + + host->cd = cd; + + if (sdCD->type == kSD_DetectCardByHostDATA3) + { + USDHC_CardDetectByData3(base, true); + } + else if (sdCD->type == kSD_DetectCardByHostCD) + { + USDHC_CardDetectByData3(base, false); + } + else + { + assert(false); + } + + /* enable card detect interrupt */ + USDHC_EnableInterruptStatus(base, kUSDHC_CardInsertionFlag); + USDHC_EnableInterruptStatus(base, kUSDHC_CardRemovalFlag); + + return kStatus_Success; +} + +uint32_t SDMMCHOST_CardDetectStatus(sdmmchost_t *host) +{ + sd_detect_card_t *sdCD = (sd_detect_card_t *)(host->cd); + uint32_t insertStatus = kSD_Removed; + + if (sdCD->dat3PullFunc != NULL) + { + sdCD->dat3PullFunc(kSD_DAT3PullDown); + SDMMC_OSADelay(1U); + } + + if ((USDHC_GetPresentStatusFlags(host->hostController.base) & (uint32_t)kUSDHC_CardInsertedFlag) != 0U) + { + insertStatus = kSD_Inserted; + if (sdCD->dat3PullFunc != NULL) + { + sdCD->dat3PullFunc(kSD_DAT3PullUp); + } + } + + return insertStatus; +} + +status_t SDMMCHOST_PollingCardDetectStatus(sdmmchost_t *host, uint32_t waitCardStatus, uint32_t timeout) +{ + assert(host != NULL); + assert(host->cd != NULL); + + sd_detect_card_t *cd = host->cd; + bool isCardInserted = false; + + /* Wait card inserted. */ + do + { + isCardInserted = (SDMMCHOST_CardDetectStatus(host) == (uint32_t)kSD_Inserted); + if ((waitCardStatus == (uint32_t)kSD_Inserted) && isCardInserted) + { + SDMMC_OSADelay(cd->cdDebounce_ms); + if (SDMMCHOST_CardDetectStatus(host) == (uint32_t)kSD_Inserted) + { + break; + } + } + + if ((isCardInserted == false) && (waitCardStatus == (uint32_t)kSD_Removed)) + { + break; + } + } while (1U); + + return kStatus_Success; +} + +status_t SDMMCHOST_WaitCardDetectStatus(SDMMCHOST_TYPE *hostBase, + const sdmmchost_detect_card_t *cd, + bool waitCardStatus) +{ + assert(cd != NULL); + + while ((USDHC_GetInterruptStatusFlags(hostBase) & (uint32_t)kUSDHC_CardInsertionFlag) != (uint32_t)waitCardStatus) + { + } + + return kStatus_Success; +} + +#if SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER + +void SDMMCHOST_InstallCacheAlignBuffer(sdmmchost_t *host, void *cacheAlignBuffer, uint32_t cacheAlignBufferSize) +{ + /* blocking adapter not support the cache line align transfer */ + assert(false); +} +#endif + +status_t SDMMCHOST_TransferFunction(sdmmchost_t *host, sdmmchost_transfer_t *content) +{ + status_t error = kStatus_Success; + + usdhc_adma_config_t dmaConfig; + + if (content->data != NULL) + { + (void)memset(&dmaConfig, 0, sizeof(usdhc_adma_config_t)); + /* config adma */ + dmaConfig.dmaMode = kUSDHC_DmaModeAdma2; +#if !(defined(FSL_FEATURE_USDHC_HAS_NO_RW_BURST_LEN) && FSL_FEATURE_USDHC_HAS_NO_RW_BURST_LEN) + dmaConfig.burstLen = kUSDHC_EnBurstLenForINCR; +#endif + dmaConfig.admaTable = host->dmaDesBuffer; + dmaConfig.admaTableWords = host->dmaDesBufferWordsNum; + +#if ((defined __DCACHE_PRESENT) && __DCACHE_PRESENT) || (defined FSL_FEATURE_HAS_L1CACHE && FSL_FEATURE_HAS_L1CACHE) +#if !(defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) + if (host->enableCacheControl == (uint32_t)kSDMMCHOST_CacheControlRWBuffer) + { + /* no matter read or write transfer, clean the cache line anyway to avoid data miss */ + DCACHE_CleanByRange( + (uint32_t)(content->data->txData == NULL ? content->data->rxData : content->data->txData), + (content->data->blockSize) * (content->data->blockCount)); + } +#endif +#endif + } + + error = USDHC_TransferBlocking(host->hostController.base, &dmaConfig, content); + + if (error != kStatus_Success) + { + /* host error recovery */ + SDMMCHOST_ErrorRecovery(host->hostController.base); + } +#if ((defined __DCACHE_PRESENT) && __DCACHE_PRESENT) || (defined FSL_FEATURE_HAS_L1CACHE && FSL_FEATURE_HAS_L1CACHE) +#if !(defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) + else + { + if ((content->data != NULL) && (content->data->rxData != NULL) && + (host->enableCacheControl == (uint32_t)kSDMMCHOST_CacheControlRWBuffer)) + { + /* no matter read or write transfer, clean the cache line anyway to avoid data miss */ + DCACHE_InvalidateByRange((uint32_t)content->data->rxData, + (content->data->blockSize) * (content->data->blockCount)); + } + } +#endif +#endif + + return error; +} + +static void SDMMCHOST_ErrorRecovery(USDHC_Type *base) +{ + uint32_t status = 0U; + /* get host present status */ + status = USDHC_GetPresentStatusFlags(base); + /* check command inhibit status flag */ + if ((status & (uint32_t)kUSDHC_CommandInhibitFlag) != 0U) + { + /* reset command line */ + (void)USDHC_Reset(base, kUSDHC_ResetCommand, 100U); + } + /* check data inhibit status flag */ + if ((status & (uint32_t)kUSDHC_DataInhibitFlag) != 0U) + { + /* reset data line */ + (void)USDHC_Reset(base, kUSDHC_ResetData, 100U); + } +} + +void SDMMCHOST_SetCardPower(sdmmchost_t *host, bool enable) +{ + /* host not support */ +} + +void SDMMCHOST_SetCardBusWidth(sdmmchost_t *host, uint32_t dataBusWidth) +{ + assert((dataBusWidth != (uint32_t)kUSDHC_DataBusWidth8Bit) || + ((dataBusWidth == (uint32_t)kUSDHC_DataBusWidth8Bit) && SDMMCHOST_INSTANCE_SUPPORT_8_BIT_WIDTH(host) != 0U)); + + USDHC_SetDataBusWidth(host->hostController.base, dataBusWidth == (uint32_t)kSDMMC_BusWdith1Bit ? + kUSDHC_DataBusWidth1Bit : + dataBusWidth == (uint32_t)kSDMMC_BusWdith4Bit ? + kUSDHC_DataBusWidth4Bit : + kUSDHC_DataBusWidth8Bit); +} + +void SDMMCHOST_PowerOffCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr) +{ + if (pwr != NULL) + { + pwr->powerOff(); + SDMMC_OSADelay(pwr->powerOffDelay_ms); + } +} + +void SDMMCHOST_PowerOnCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr) +{ + /* use user define the power on function */ + if (pwr != NULL) + { + pwr->powerOn(); + SDMMC_OSADelay(pwr->powerOnDelay_ms); + } + else + { + /* Delay several milliseconds to make card stable. */ + SDMMC_OSADelay(1000U); + } +} + +status_t SDMMCHOST_Init(sdmmchost_t *host) +{ + assert(host != NULL); + + usdhc_host_t *usdhcHost = &(host->hostController); + + /* Initializes USDHC. */ + usdhcHost->config.endianMode = kUSDHC_EndianModeLittle; + usdhcHost->config.dataTimeout = 0xFU; + usdhcHost->config.readWatermarkLevel = 0x80U; + usdhcHost->config.writeWatermarkLevel = 0x80U; + USDHC_Init(usdhcHost->base, &(usdhcHost->config)); + + return kStatus_Success; +} + +void SDMMCHOST_Reset(sdmmchost_t *host) +{ + USDHC_Type *base = host->hostController.base; + + /* voltage switch to normal but not 1.8V */ + UDSHC_SelectVoltage(base, false); + /* Disable DDR mode */ + USDHC_EnableDDRMode(base, false, 0U); + /* disable tuning */ +#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE) + USDHC_EnableStandardTuning(base, 0, 0, false); + USDHC_EnableAutoTuning(host->hostController.base, false); +#endif + +#if FSL_FEATURE_USDHC_HAS_HS400_MODE + /* Disable HS400 mode */ + USDHC_EnableHS400Mode(base, false); + /* Disable DLL */ + USDHC_EnableStrobeDLL(base, false); +#endif + + /* reset data/command/tuning circuit */ + (void)USDHC_Reset(base, kUSDHC_ResetAll, 100U); +} + +void SDMMCHOST_Deinit(sdmmchost_t *host) +{ + usdhc_host_t *sdhcHost = &host->hostController; + SDMMCHOST_Reset(host); + USDHC_Deinit(sdhcHost->base); +} + +void SDMMCHOST_SwitchToVoltage(sdmmchost_t *host, uint32_t voltage) +{ + if (voltage == (uint32_t)kSDMMC_OperationVoltage180V) + { + UDSHC_SelectVoltage(host->hostController.base, true); + } + else + { + UDSHC_SelectVoltage(host->hostController.base, false); + } +} + +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 || SDMMCHOST_SUPPORT_HS200 || SDMMCHOST_SUPPORT_HS400 + +static status_t SDMMCHOST_ExecuteStdTuning(sdmmchost_t *host, uint32_t tuningCmd, uint32_t *revBuf, uint32_t blockSize) +{ + sdmmchost_transfer_t content = {0U}; + sdmmchost_cmd_t command = {0U}; + sdmmchost_data_t data = {0U}; + bool tuningError = true; + status_t error = kStatus_Success; + + command.index = tuningCmd; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR1; + + data.blockSize = blockSize; + data.blockCount = 1U; + data.rxData = revBuf; + data.dataType = kUSDHC_TransferDataTuning; + + content.command = &command; + content.data = &data; + + (void)USDHC_Reset(host->hostController.base, kUSDHC_ResetTuning, 100U); + + /* disable standard tuning */ + USDHC_EnableStandardTuning(host->hostController.base, SDMMCHOST_STANDARD_TUNING_START, SDMMCHOST_TUINIG_STEP, + false); + /* + * Tuning fail found on some SOCS caused by the difference of delay cell, so we need to i + * ncrease the tuning counter to cover the adjustable tuninig window + */ + USDHC_SetStandardTuningCounter(host->hostController.base, SDMMCHOST_STANDARD_TUNING_COUNTER); + /* enable the standard tuning */ + USDHC_EnableStandardTuning(host->hostController.base, SDMMCHOST_STANDARD_TUNING_START, SDMMCHOST_TUINIG_STEP, true); + + while (true) + { + error = SDMMCHOST_TransferFunction(host, &content); + /* send tuning block */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + SDMMC_OSADelay(1U); + + /*wait excute tuning bit clear*/ + if ((USDHC_GetExecuteStdTuningStatus(host->hostController.base) != 0U)) + { + continue; + } + + /* if tuning error , re-tuning again */ + if ((USDHC_CheckTuningError(host->hostController.base) != 0U) && tuningError) + { + tuningError = false; + /* enable the standard tuning */ + USDHC_EnableStandardTuning(host->hostController.base, SDMMCHOST_STANDARD_TUNING_START, + SDMMCHOST_TUINIG_STEP, true); + (void)USDHC_AdjustDelayForManualTuning(host->hostController.base, SDMMCHOST_STANDARD_TUNING_START); + } + else + { + break; + } + } + + /* check tuning result*/ + if (USDHC_CheckStdTuningResult(host->hostController.base) == 0U) + { + return kStatus_SDMMC_TuningFail; + } + + USDHC_EnableAutoTuning(host->hostController.base, true); + /* do not handle tuning error status, since the tuning error detect circuit is very sensetive which may drop down + * the transfer performance */ + USDHC_DisableInterruptStatus(host->hostController.base, kUSDHC_TuningErrorFlag); + + return kStatus_Success; +} + +static status_t SDMMCHOST_ReceiveTuningBlock(sdmmchost_t *host, uint32_t tuningCmd, uint32_t *revBuf, uint32_t size) +{ + assert(revBuf != NULL); + + usdhc_command_t command = {0U}; + uint32_t interruptStatus = 0U; + uint32_t transferredWords = 0U; + uint32_t wordSize = size / sizeof(uint32_t); + USDHC_Type *base = host->hostController.base; + + command.index = tuningCmd; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR1; + command.flags = kUSDHC_DataPresentFlag; + + /* disable DMA first */ + USDHC_EnableInternalDMA(base, false); + /* set data configurations */ + USDHC_SetDataConfig(base, kUSDHC_TransferDirectionReceive, 1U, size); + /* enable status */ + USDHC_EnableInterruptStatus(base, (uint32_t)kUSDHC_CommandCompleteFlag | (uint32_t)kUSDHC_CommandErrorFlag | + (uint32_t)kUSDHC_BufferReadReadyFlag); + /* polling cmd done */ + USDHC_SendCommand(base, &command); + while (0U == (interruptStatus & ((uint32_t)kUSDHC_CommandCompleteFlag | (uint32_t)kUSDHC_CommandErrorFlag))) + { + interruptStatus = USDHC_GetInterruptStatusFlags(base); + } + /* clear interrupt status */ + USDHC_ClearInterruptStatusFlags(base, interruptStatus); + /* check command inhibit status flag */ + if ((USDHC_GetPresentStatusFlags(base) & (uint32_t)kUSDHC_CommandInhibitFlag) != 0U) + { + /* reset command line */ + (void)USDHC_Reset(base, kUSDHC_ResetCommand, 100U); + } + + while (0U == (interruptStatus & (uint32_t)kUSDHC_BufferReadReadyFlag)) + { + interruptStatus = USDHC_GetInterruptStatusFlags(base); + } + + while (transferredWords < wordSize) + { + revBuf[transferredWords++] = USDHC_ReadData(base); + } + + USDHC_ClearInterruptStatusFlags( + base, interruptStatus | (uint32_t)kUSDHC_DataCompleteFlag | (uint32_t)kUSDHC_DataErrorFlag); + + return kStatus_Success; +} + +static status_t SDMMC_CheckTuningResult(uint32_t *buffer, uint32_t size) +{ + uint32_t i = 0U; + + for (i = 0U; i < size / sizeof(uint32_t); i++) + { + if (SDMMC_TuningBlockPattern4Bit[i] != SWAP_WORD_BYTE_SEQUENCE(buffer[i])) + { +#if defined SDMMC_ENABLE_LOG_PRINT + SDMMC_LOG("tuning unmatch target: %x, read :%x\r\n", SDMMC_TuningBlockPattern4Bit[i], + SWAP_WORD_BYTE_SEQUENCE(buffer[i])); +#endif + return kStatus_SDMMC_TuningFail; + } + } + + return kStatus_Success; +} + +status_t SDMMCHOST_ExecuteManualTuning(sdmmchost_t *host, uint32_t tuningCmd, uint32_t *revBuf, uint32_t blockSize) +{ + uint32_t *buffer = revBuf; + uint32_t tuningDelayCell = 0U; + uint32_t validDelayCellStart = 0U; + bool validWindowFound = false; + uint32_t validWindowCounter = 0U; + status_t ret = kStatus_Success; + USDHC_Type *base = host->hostController.base; + + (void)USDHC_Reset(base, kUSDHC_ResetTuning, 100U); + USDHC_EnableManualTuning(base, true); + + while (true) + { + (void)USDHC_AdjustDelayForManualTuning(base, tuningDelayCell); + + (void)SDMMCHOST_ReceiveTuningBlock(host, tuningCmd, buffer, blockSize); + + if (kStatus_Success == SDMMC_CheckTuningResult(buffer, blockSize)) + { + if (validWindowFound == false) + { + validDelayCellStart = tuningDelayCell; + validWindowFound = true; + } + + if ((validWindowCounter + validDelayCellStart) != tuningDelayCell) + { + validWindowFound = false; + validWindowCounter = 0U; + } + + validWindowCounter++; + +#if defined SDMMC_ENABLE_LOG_PRINT + SDMMC_LOG("tuning pass point: %d\r\n", tuningDelayCell); +#endif + } + else + { + if ((validWindowFound) && (validWindowCounter > 2U)) + { + break; + } + } + + if (++tuningDelayCell >= SDMMCHOST_MAX_TUNING_DELAY_CELL) + { + break; + } + + (void)memset(buffer, 0, blockSize); + + SDMMC_OSADelay(2U); + } + (void)memset(buffer, 0, blockSize); + + SDMMC_OSADelay(2U); + + /* select middle position of the window */ + (void)USDHC_AdjustDelayForManualTuning(base, validDelayCellStart + validWindowCounter / 2U); + /* send tuning block with the average delay cell */ + (void)SDMMCHOST_ReceiveTuningBlock(host, tuningCmd, buffer, blockSize); + ret = SDMMC_CheckTuningResult(buffer, blockSize); + /* abort tuning */ + USDHC_EnableManualTuning(base, false); + + /* enable auto tuning */ + USDHC_EnableAutoTuning(base, true); + /* do not handle tuning error status, since the tuning error detect circuit is very sensetive which may drop down + * the transfer performance */ + USDHC_DisableInterruptStatus(base, kUSDHC_TuningErrorFlag); + + return ret; +} + +status_t SDMMCHOST_ExecuteTuning(sdmmchost_t *host, uint32_t tuningCmd, uint32_t *revBuf, uint32_t blockSize) +{ + if (host->tuningType == (uint32_t)kSDMMCHOST_StandardTuning) + { + return SDMMCHOST_ExecuteStdTuning(host, tuningCmd, revBuf, blockSize); + } + + return SDMMCHOST_ExecuteManualTuning(host, tuningCmd, revBuf, blockSize); +} +#endif + +status_t SDMMCHOST_StartBoot(sdmmchost_t *host, + sdmmchost_boot_config_t *hostConfig, + sdmmchost_cmd_t *cmd, + uint8_t *buffer) +{ + sdmmchost_transfer_t content = {0}; + sdmmchost_data_t data = {0}; + status_t error = kStatus_Success; + + USDHC_SetMmcBootConfig(host->hostController.base, hostConfig); + + data.blockSize = hostConfig->blockSize; + data.blockCount = hostConfig->blockCount; + data.rxData = (uint32_t *)(uint32_t)buffer; + data.dataType = kUSDHC_TransferDataBoot; + + content.data = &data; + content.command = cmd; + + error = SDMMCHOST_TransferFunction(host, &content); + /* should check tuning error during every transfer*/ + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t SDMMCHOST_ReadBootData(sdmmchost_t *host, sdmmchost_boot_config_t *hostConfig, uint8_t *buffer) +{ + sdmmchost_cmd_t command = {0}; + sdmmchost_transfer_t content = {0}; + sdmmchost_data_t data = {0}; + status_t error = kStatus_Success; + + USDHC_SetMmcBootConfig(host->hostController.base, hostConfig); + USDHC_EnableMmcBoot(host->hostController.base, true); + + data.blockSize = hostConfig->blockSize; + data.blockCount = hostConfig->blockCount; + data.rxData = (uint32_t *)(uint32_t)buffer; + data.dataType = kUSDHC_TransferDataBootcontinous; + /* no command should be send out */ + command.type = kCARD_CommandTypeEmpty; + + content.data = &data; + content.command = &command; + + error = SDMMCHOST_TransferFunction(host, &content); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} diff --git a/middleware/sdmmc/host/usdhc/fsl_sdmmc_host.h b/middleware/sdmmc/host/usdhc/fsl_sdmmc_host.h new file mode 100644 index 0000000..b5a337f --- /dev/null +++ b/middleware/sdmmc/host/usdhc/fsl_sdmmc_host.h @@ -0,0 +1,506 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef _FSL_SDMMC_HOST_H +#define _FSL_SDMMC_HOST_H + +#include "fsl_common.h" +#include "fsl_sdmmc_osa.h" +#include "fsl_usdhc.h" + +/*! + * @addtogroup SDMMCHOST_USDHC + * @{ + */ + +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*! @brief Middleware adapter version. */ +#define FSL_SDMMC_HOST_ADAPTER_VERSION (MAKE_VERSION(2U, 5U, 0U)) /*2.5.0*/ + +#if ((defined __DCACHE_PRESENT) && __DCACHE_PRESENT) || (defined FSL_FEATURE_HAS_L1CACHE && FSL_FEATURE_HAS_L1CACHE) +#define SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER 0 +#if SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER +#if !(defined FSL_USDHC_ENABLE_SCATTER_GATHER_TRANSFER && FSL_USDHC_ENABLE_SCATTER_GATHER_TRANSFER) +#error "missing definition of macro FSL_USDHC_ENABLE_SCATTER_GATHER_TRANSFER" +#endif +#endif +#endif + +/*!@brief sdmmc host misc capability */ +#define SDMMCHOST_SUPPORT_HIGH_SPEED (1U) +#define SDMMCHOST_SUPPORT_SUSPEND_RESUME (1U) +#define SDMMCHOST_SUPPORT_VOLTAGE_3V3 (1U) +#define SDMMCHOST_SUPPORT_VOLTAGE_3V0 (0U) +#define SDMMCHOST_SUPPORT_VOLTAGE_1V8 (1U) +#define SDMMCHOST_SUPPORT_VOLTAGE_1V2 (1U) +#define SDMMCHOST_SUPPORT_4_BIT_WIDTH (1U) +#define SDMMCHOST_SUPPORT_8_BIT_WIDTH (1U) +#define SDMMCHOST_SUPPORT_DDR_MODE (1U) +#define SDMMCHOST_SUPPORT_DETECT_CARD_BY_DATA3 (1U) +#define SDMMCHOST_SUPPORT_DETECT_CARD_BY_CD (1U) +#define SDMMCHOST_SUPPORT_AUTO_CMD12 (1U) +#define SDMMCHOST_SUPPORT_MAX_BLOCK_LENGTH (4096U) +#define SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT (USDHC_MAX_BLOCK_COUNT) + +/*! @brief sdmmc host sdcard DDR50 mode capability*/ +#define SDMMCHOST_SUPPORT_DDR50 (SDMMCHOST_SUPPORT_DDR_MODE) + +/*! @brief sdmmc host sdcard SDR50 mode capability*/ +#if (defined(FSL_FEATURE_USDHC_HAS_SDR104_MODE) && (FSL_FEATURE_USDHC_HAS_SDR104_MODE)) +#define SDMMCHOST_SUPPORT_SDR104 (1U) +#else +#define SDMMCHOST_SUPPORT_SDR104 (0U) +#endif + +/*! @brief sdmmc host sdcard SDR104/mmccard HS200 mode capability*/ +#if (defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE)) +#define SDMMCHOST_SUPPORT_SDR50 (1U) +#define SDMMCHOST_SUPPORT_HS200 (1U) +#else +#define SDMMCHOST_SUPPORT_HS200 (0U) +#define SDMMCHOST_SUPPORT_SDR50 (0U) +#endif + +/*! @brief sdmmc host mmccard HS400 mode capability*/ +#if (defined(FSL_FEATURE_USDHC_HAS_HS400_MODE) && (FSL_FEATURE_USDHC_HAS_HS400_MODE)) +#define SDMMCHOST_SUPPORT_HS400 (1U) +#else +#define SDMMCHOST_SUPPORT_HS400 (0U) +#endif + +/*! @brief sdmmc host instance capability */ +#if defined FSL_FEATURE_USDHC_INSTANCE_SUPPORT_8_BIT_WIDTHn +#define SDMMCHOST_INSTANCE_SUPPORT_8_BIT_WIDTH(host) \ + FSL_FEATURE_USDHC_INSTANCE_SUPPORT_8_BIT_WIDTHn(host->hostController.base) +#else +#define SDMMCHOST_INSTANCE_SUPPORT_8_BIT_WIDTH(host) 0 +#endif +#if defined FSL_FEATURE_USDHC_INSTANCE_SUPPORT_HS400_MODEn +#define SDMMCHOST_INSTANCE_SUPPORT_HS400(host) FSL_FEATURE_USDHC_INSTANCE_SUPPORT_HS400_MODEn(host->hostController.base) +#else +#define SDMMCHOST_INSTANCE_SUPPORT_HS400(host) 0 +#endif +#if defined FSL_FEATURE_USDHC_INSTANCE_SUPPORT_1V8_SIGNALn +#define SDMMCHOST_INSTANCE_SUPPORT_1V8_SIGNAL(host) \ + FSL_FEATURE_USDHC_INSTANCE_SUPPORT_1V8_SIGNALn(host->hostController.base) +#define SDMMCHOST_INSTANCE_SUPPORT_HS200(host) SDMMCHOST_INSTANCE_SUPPORT_1V8_SIGNAL(host) +#define SDMMCHOST_INSTANCE_SUPPORT_SDR104(host) SDMMCHOST_INSTANCE_SUPPORT_1V8_SIGNAL(host) +#define SDMMCHOST_INSTANCE_SUPPORT_SDR50(host) SDMMCHOST_INSTANCE_SUPPORT_1V8_SIGNAL(host) +#define SDMMCHOST_INSTANCE_SUPPORT_DDR50(host) SDMMCHOST_INSTANCE_SUPPORT_1V8_SIGNAL(host) +#else +#define SDMMCHOST_INSTANCE_SUPPORT_1V8_SIGNAL(host) 0 +#define SDMMCHOST_INSTANCE_SUPPORT_HS200(host) 0 +#define SDMMCHOST_INSTANCE_SUPPORT_SDR104(host) 0 +#define SDMMCHOST_INSTANCE_SUPPORT_SDR50(host) 0 +#define SDMMCHOST_INSTANCE_SUPPORT_DDR50(host) 0 +#endif + +/*!@brief SDMMC host dma descriptor buffer address align size */ +#define SDMMCHOST_DMA_DESCRIPTOR_BUFFER_ALIGN_SIZE (4U) +/*!@brief tuning configuration */ +#define SDMMCHOST_STANDARD_TUNING_START (10U) /*!< standard tuning start point */ +#define SDMMCHOST_TUINIG_STEP (2U) /*!< standard tuning stBep */ +#define SDMMCHOST_STANDARD_TUNING_COUNTER (60) +#define SDMMCHOST_STROBE_DLL_DELAY_TARGET (7U) +#define SDMMCHOST_STROBE_DLL_DELAY_UPDATE_INTERVAL (4U) +#define SDMMCHOST_MAX_TUNING_DELAY_CELL (128U) +/*!@brief sdmmc host transfer function */ +typedef usdhc_transfer_t sdmmchost_transfer_t; +typedef usdhc_command_t sdmmchost_cmd_t; +typedef usdhc_data_t sdmmchost_data_t; +typedef struct _sdmmchost_ SDMMCHOST_CONFIG; +typedef USDHC_Type SDMMCHOST_TYPE; +typedef void sdmmchost_detect_card_t; +typedef usdhc_boot_config_t sdmmchost_boot_config_t; +/*! @brief host Endian mode + * corresponding to driver define + * @anchor _sdmmchost_endian_mode + */ +enum +{ + kSDMMCHOST_EndianModeBig = 0U, /*!< Big endian mode */ + kSDMMCHOST_EndianModeHalfWordBig = 1U, /*!< Half word big endian mode */ + kSDMMCHOST_EndianModeLittle = 2U, /*!< Little endian mode */ +}; + +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 || SDMMCHOST_SUPPORT_HS200 || SDMMCHOST_SUPPORT_HS400 +/*! @brief sdmmc host tuning type + * @anchor _sdmmchost_tuning_type + */ +enum +{ + kSDMMCHOST_StandardTuning = 0U, /*!< standard tuning type */ + kSDMMCHOST_ManualTuning = 1U, /*!< manual tuning type */ +}; +#endif + +/*! @brief sdmmc host maintain cache flag + * @anchor _sdmmc_host_cache_control + */ +enum +{ + kSDMMCHOST_NoCacheControl = 0U, /*!< sdmmc host cache control disabled */ + kSDMMCHOST_CacheControlRWBuffer = 1U, /*!< sdmmc host cache control read/write buffer */ +}; + +/*! @brief card power control function pointer */ +typedef void (*sdmmchost_pwr_t)(void); + +/*! @brief card power control + * @deprecated Do not use this structure anymore. + */ +typedef struct _sdmmchost_pwr_card +{ + sdmmchost_pwr_t powerOn; /*!< power on function pointer */ + uint32_t powerOnDelay_ms; /*!< power on delay */ + + sdmmchost_pwr_t powerOff; /*!< power off function pointer */ + uint32_t powerOffDelay_ms; /*!< power off delay */ +} sdmmchost_pwr_card_t; + +/*!@brief sdmmc host handler */ +typedef struct _sdmmchost_ +{ + usdhc_host_t hostController; /*!< host configuration */ + void *dmaDesBuffer; /*!< DMA descriptor buffer address */ + uint32_t dmaDesBufferWordsNum; /*!< DMA descriptor buffer size in byte */ + usdhc_handle_t handle; /*!< host controller handler */ + +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 || SDMMCHOST_SUPPORT_HS200 || SDMMCHOST_SUPPORT_HS400 + uint8_t tuningType; /*!< host tuning type */ +#endif + sdmmc_osa_event_t hostEvent; /*!< host event handler */ + void *cd; /*!< card detect */ + void *cardInt; /*!< call back function for card interrupt */ + +#if ((defined __DCACHE_PRESENT) && __DCACHE_PRESENT) || (defined FSL_FEATURE_HAS_L1CACHE && FSL_FEATURE_HAS_L1CACHE) + uint8_t enableCacheControl; /*!< Cache maintain flag in host driver. Host driver only maintain cache when + FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL is not defined and enableCacheControl = + kSDMMCHOST_CacheControlRWBuffer. While FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL is + defined, host driver will not maintain cache and peripheral driver will do it.*/ +#if defined SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER && SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER + void *cacheAlignBuffer; /*!< cache line size align buffer */ + uint32_t cacheAlignBufferSize; /*!< cache line size align buffer size, the size must be not smaller than 2 * cache + line size */ +#endif + +#endif +} sdmmchost_t; + +/******************************************************************************* + * API + ******************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name USDHC host controller function + * @{ + */ + +/*! + * @brief set data bus width. + * @param host host handler + * @param dataBusWidth data bus width + */ +void SDMMCHOST_SetCardBusWidth(sdmmchost_t *host, uint32_t dataBusWidth); + +/*! + * @brief Send initilization active 80 clocks to card. + * @param host host handler + */ +static inline void SDMMCHOST_SendCardActive(sdmmchost_t *host) +{ + USDHC_SetCardActive(host->hostController.base, 100U); +} + +/*! + * @brief Set card bus clock. + * @param host host handler + * @param targetClock target clock frequency + * @retval actual clock frequency can be reach. + */ +static inline uint32_t SDMMCHOST_SetCardClock(sdmmchost_t *host, uint32_t targetClock) +{ + return USDHC_SetSdClock(host->hostController.base, host->hostController.sourceClock_Hz, targetClock); +} + +/*! + * @brief check card status by DATA0. + * @param host host handler + * @retval true is busy, false is idle. + */ +static inline bool SDMMCHOST_IsCardBusy(sdmmchost_t *host) +{ + return (USDHC_GetPresentStatusFlags(host->hostController.base) & kUSDHC_Data0LineLevelFlag) == + kUSDHC_Data0LineLevelFlag ? + false : + true; +} + +/*! + * @brief Get signal line status. + * @param host host handler + * @param signalLine signal line type, reference _sdmmc_signal_line + */ +static inline uint32_t SDMMCHOST_GetSignalLineStatus(sdmmchost_t *host, uint32_t signalLine) +{ + return (USDHC_GetPresentStatusFlags(host->hostController.base) >> USDHC_PRES_STATE_CLSL_SHIFT) & signalLine; +} +/*! + * @brief enable card interrupt. + * @param host host handler + * @param enable true is enable, false is disable. + */ +static inline void SDMMCHOST_EnableCardInt(sdmmchost_t *host, bool enable) +{ + if (enable) + { + USDHC_EnableInterruptStatus(host->hostController.base, kUSDHC_CardInterruptFlag); + USDHC_EnableInterruptSignal(host->hostController.base, kUSDHC_CardInterruptFlag); + } + else + { + USDHC_DisableInterruptStatus(host->hostController.base, kUSDHC_CardInterruptFlag); + USDHC_DisableInterruptSignal(host->hostController.base, kUSDHC_CardInterruptFlag); + } +} + +/*! + * @brief enable DDR mode. + * @param host host handler + * @param enable true is enable, false is disable. + * @param nibblePos nibble position indictation. 0- the sequence is 'odd high nibble -> even high nibble -> + * odd low nibble -> even low nibble'; 1- the sequence is 'odd high nibble -> odd low nibble -> even high + * nibble -> even low nibble'. + */ +static inline void SDMMCHOST_EnableDDRMode(sdmmchost_t *host, bool enable, uint32_t nibblePos) +{ + USDHC_EnableDDRMode(host->hostController.base, enable, nibblePos); +} + +#if FSL_FEATURE_USDHC_HAS_HS400_MODE +/*! + * @brief enable HS400 mode. + * @param host host handler + * @param enable true is enable, false is disable. + */ +static inline void SDMMCHOST_EnableHS400Mode(sdmmchost_t *host, bool enable) +{ + assert(SDMMCHOST_INSTANCE_SUPPORT_HS400(host) != 0U); + + USDHC_EnableHS400Mode(host->hostController.base, enable); +} + +/*! + * @brief enable STROBE DLL. + * @param host host handler + * @param enable true is enable, false is disable. + */ +static inline void SDMMCHOST_EnableStrobeDll(sdmmchost_t *host, bool enable) +{ + if (enable) + { + USDHC_ConfigStrobeDLL(host->hostController.base, SDMMCHOST_STROBE_DLL_DELAY_TARGET, + SDMMCHOST_STROBE_DLL_DELAY_UPDATE_INTERVAL); + USDHC_EnableStrobeDLL(host->hostController.base, enable); + } + else + { + USDHC_EnableStrobeDLL(host->hostController.base, enable); + } +} +#endif + +/*! + * @brief start read boot data. + * @param host host handler + * @param hostConfig boot configuration + * @param cmd boot command + * @param buffer buffer address + */ +status_t SDMMCHOST_StartBoot(sdmmchost_t *host, + sdmmchost_boot_config_t *hostConfig, + sdmmchost_cmd_t *cmd, + uint8_t *buffer); + +/*! + * @brief read boot data. + * @param host host handler + * @param hostConfig boot configuration + * @param buffer buffer address + */ +status_t SDMMCHOST_ReadBootData(sdmmchost_t *host, sdmmchost_boot_config_t *hostConfig, uint8_t *buffer); + +/*! + * @brief enable boot mode. + * @param host host handler + * @param enable true is enable, false is disable + */ +static inline void SDMMCHOST_EnableBoot(sdmmchost_t *host, bool enable) +{ + USDHC_EnableMmcBoot(host->hostController.base, enable); +} + +/*! + * @brief card interrupt function. + * @param host host handler + * @param sdioInt card interrupt configuration + */ +status_t SDMMCHOST_CardIntInit(sdmmchost_t *host, void *sdioInt); + +/*! + * @brief force card clock on. + * @param host host handler + * @param enable true is enable, false is disable. + */ +static inline void SDMMCHOST_ForceClockOn(sdmmchost_t *host, bool enable) +{ + USDHC_ForceClockOn(host->hostController.base, enable); +} + +/*! + * @brief switch to voltage. + * @param host host handler + * @param voltage switch to voltage level. + */ +void SDMMCHOST_SwitchToVoltage(sdmmchost_t *host, uint32_t voltage); + +/*! + * @brief card detect init function. + * @param host host handler + * @param cd card detect configuration + */ +status_t SDMMCHOST_CardDetectInit(sdmmchost_t *host, void *cd); + +/*! + * @brief Detect card insert, only need for SD cases. + * @param host host handler + * @param waitCardStatus status which user want to wait + * @param timeout wait time out. + * @retval kStatus_Success detect card insert + * @retval kStatus_Fail card insert event fail + */ +status_t SDMMCHOST_PollingCardDetectStatus(sdmmchost_t *host, uint32_t waitCardStatus, uint32_t timeout); + +/*! + * @brief card detect status. + * @param host host handler + * @retval kSD_Inserted, kSD_Removed + */ +uint32_t SDMMCHOST_CardDetectStatus(sdmmchost_t *host); + +/*! + * @brief Init host controller. + * @param host host handler + * @retval kStatus_Success host init success + * @retval kStatus_Fail event fail + */ +status_t SDMMCHOST_Init(sdmmchost_t *host); + +/*! + * @brief Deinit host controller. + * @param host host handler + */ +void SDMMCHOST_Deinit(sdmmchost_t *host); + +/*! + * @brief host power off card function. + * @param host host handler + * @param enable true is power on, false is power down. + */ +void SDMMCHOST_SetCardPower(sdmmchost_t *host, bool enable); + +#if SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER +/*! + * @brief Install cache line size align buffer for the transfer require cache line size align. + * @param host host handler + * @param cacheAlignBuffer cache line size align buffer pointer. + * @param cacheAlignBufferSize cache line size align buffer size. + */ +void SDMMCHOST_InstallCacheAlignBuffer(sdmmchost_t *host, void *cacheAlignBuffer, uint32_t cacheAlignBufferSize); +#endif + +/*! + * @brief host transfer function. + * + * @note the host transfer function support below functionality, + * 1. Non-cache line size alignment check on the data buffer, it is means that no matter the data buffer used for data + * transfer is align with cache line size or not, sdmmc host driver will use the address directly. + * 2. Cache line size alignment check on the data buffer, sdmmc host driver will check the data buffer address, if the + * buffer is not align with cache line size, sdmmc host driver will convert it to cache line size align buffer, the + * functionality is enabled by \#define SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER 1 \#define + * FSL_USDHC_ENABLE_SCATTER_GATHER_TRANSFER 1U If application would like to enable the cache line size align + * functionality, please make sure the + * SDMMCHOST_InstallCacheAlignBuffer is called before submit data transfer request and make sure the installing buffer + * size is not smaller than 2 * cache line size. + * + * @param host host handler + * @param content transfer content. + */ +status_t SDMMCHOST_TransferFunction(sdmmchost_t *host, sdmmchost_transfer_t *content); + +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 || SDMMCHOST_SUPPORT_HS200 || SDMMCHOST_SUPPORT_HS400 +/*! + * @brief sdmmc host excute tuning. + * + * @param host host handler + * @param tuningCmd tuning command. + * @param revBuf receive buffer pointer + * @param blockSize tuning data block size. + */ +status_t SDMMCHOST_ExecuteTuning(sdmmchost_t *host, uint32_t tuningCmd, uint32_t *revBuf, uint32_t blockSize); +#endif + +/*! + * @brief host reset function. + * @deprecated Do not use this function. Application should not call this function, driver is responsible for the host + reset.. + * + * @param host host handler + */ +void SDMMCHOST_Reset(sdmmchost_t *host); + +/*! + * @brief wait card detect status + * @deprecated Do not use this function.It has been superceded by @ref SDMMCHOST_PollingCardDetectStatus.. + * + * @param hostBase host handler + * @param cd card detect configuration. + * @param waitCardStatus status to wait. + */ +status_t SDMMCHOST_WaitCardDetectStatus(SDMMCHOST_TYPE *hostBase, + const sdmmchost_detect_card_t *cd, + bool waitCardStatus); + +/*! + * @brief host power off card function. + * @deprecated Do not use this function.It has been superceded by @ref SDMMCHOST_SetCardPower.. + * + * @param base host base address. + * @param pwr depend on user define power configuration. + */ +void SDMMCHOST_PowerOffCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr); + +/*! + * @brief host power on card function. + * @deprecated Do not use this function.It has been superceded by @ref SDMMCHOST_SetCardPower.. + * @param base host base address. + * @param pwr depend on user define power configuration. + */ +void SDMMCHOST_PowerOnCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr); +/* @} */ + +#if defined(__cplusplus) +} +#endif +/* @} */ +#endif /* _FSL_SDMMC_HOST_H */ diff --git a/middleware/sdmmc/host/usdhc/non_blocking/fsl_sdmmc_host.c b/middleware/sdmmc/host/usdhc/non_blocking/fsl_sdmmc_host.c new file mode 100644 index 0000000..ab720c8 --- /dev/null +++ b/middleware/sdmmc/host/usdhc/non_blocking/fsl_sdmmc_host.c @@ -0,0 +1,947 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include "fsl_sdmmc_host.h" +#include "fsl_sdmmc_common.h" +#if ((defined __DCACHE_PRESENT) && __DCACHE_PRESENT) || (defined FSL_FEATURE_HAS_L1CACHE && FSL_FEATURE_HAS_L1CACHE) +#if !(defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) +#include "fsl_cache.h" +#endif +#endif + +/******************************************************************************* + * Definitions + ******************************************************************************/ +#define SDMMCHOST_TRANSFER_COMPLETE_TIMEOUT (~0U) +#define SDMMCHOST_TRANSFER_CMD_EVENT \ + SDMMC_OSA_EVENT_TRANSFER_CMD_SUCCESS | SDMMC_OSA_EVENT_TRANSFER_CMD_FAIL | SDMMC_OSA_EVENT_TRANSFER_DATA_SUCCESS | \ + SDMMC_OSA_EVENT_TRANSFER_DATA_FAIL +#define SDMMCHOST_TRANSFER_DATA_EVENT SDMMC_OSA_EVENT_TRANSFER_DATA_SUCCESS | SDMMC_OSA_EVENT_TRANSFER_DATA_FAIL +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief SDMMCHOST detect card insert status by host controller. + * @param base host base address. + * @param userData user can register a application card insert callback through userData. + */ +static void SDMMCHOST_DetectCardInsertByHost(USDHC_Type *base, void *userData); + +/*! + * @brief SDMMCHOST detect card remove status by host controller. + * @param base host base address. + * @param userData user can register a application card insert callback through userData. + */ +static void SDMMCHOST_DetectCardRemoveByHost(USDHC_Type *base, void *userData); + +/*! + * @brief SDMMCHOST transfer complete callback. + * @param base host base address. + * @param handle host handle. + * @param status interrupt status. + * @param userData user data. + */ +static void SDMMCHOST_TransferCompleteCallback(USDHC_Type *base, + usdhc_handle_t *handle, + status_t status, + void *userData); + +/*! + * @brief SDMMCHOST error recovery. + * @param base host base address. + */ +static void SDMMCHOST_ErrorRecovery(USDHC_Type *base); +/******************************************************************************* + * Variables + ******************************************************************************/ + +/******************************************************************************* + * Code + ******************************************************************************/ +static void SDMMCHOST_DetectCardInsertByHost(USDHC_Type *base, void *userData) +{ + sd_detect_card_t *cd = NULL; + + (void)SDMMC_OSAEventSet(&(((sdmmchost_t *)userData)->hostEvent), SDMMC_OSA_EVENT_CARD_INSERTED); + (void)SDMMC_OSAEventClear(&(((sdmmchost_t *)userData)->hostEvent), SDMMC_OSA_EVENT_CARD_REMOVED); + + if (userData != NULL) + { + cd = (sd_detect_card_t *)(((sdmmchost_t *)userData)->cd); + if (cd != NULL) + { + if (cd->callback != NULL) + { + cd->callback(true, cd->userData); + } + if (cd->type == kSD_DetectCardByHostDATA3) + { + USDHC_DisableInterruptSignal(base, kUSDHC_CardInsertionFlag); + if (cd->dat3PullFunc != NULL) + { + cd->dat3PullFunc(kSD_DAT3PullUp); + } + } + } + } +} + +static void SDMMCHOST_DetectCardRemoveByHost(USDHC_Type *base, void *userData) +{ + sd_detect_card_t *cd = NULL; + + (void)SDMMC_OSAEventSet(&(((sdmmchost_t *)userData)->hostEvent), SDMMC_OSA_EVENT_CARD_REMOVED); + (void)SDMMC_OSAEventClear(&(((sdmmchost_t *)userData)->hostEvent), SDMMC_OSA_EVENT_CARD_INSERTED); + + if (userData != NULL) + { + cd = (sd_detect_card_t *)(((sdmmchost_t *)userData)->cd); + if (cd != NULL) + { + if (cd->callback != NULL) + { + cd->callback(false, cd->userData); + } + + if (cd->type == kSD_DetectCardByHostDATA3) + { + USDHC_DisableInterruptSignal(base, kUSDHC_CardRemovalFlag); + } + } + } +} + +static void SDMMCHOST_CardInterrupt(USDHC_Type *base, void *userData) +{ + sdio_card_int_t *cardInt = NULL; + + /* application callback */ + if (userData != NULL) + { + cardInt = ((sdmmchost_t *)userData)->cardInt; + if ((cardInt != NULL) && (cardInt->cardInterrupt != NULL)) + { + cardInt->cardInterrupt(cardInt->userData); + } + } +} + +status_t SDMMCHOST_CardIntInit(sdmmchost_t *host, void *sdioInt) +{ + host->cardInt = sdioInt; + host->handle.callback.SdioInterrupt = SDMMCHOST_CardInterrupt; + SDMMCHOST_EnableCardInt(host, true); + + return kStatus_Success; +} + +status_t SDMMCHOST_CardDetectInit(sdmmchost_t *host, void *cd) +{ + USDHC_Type *base = host->hostController.base; + sd_detect_card_t *sdCD = (sd_detect_card_t *)cd; + if (cd == NULL) + { + return kStatus_Fail; + } + + host->cd = cd; + host->handle.callback.CardInserted = SDMMCHOST_DetectCardInsertByHost; + host->handle.callback.CardRemoved = SDMMCHOST_DetectCardRemoveByHost; + if (sdCD->type == kSD_DetectCardByHostDATA3) + { + USDHC_CardDetectByData3(base, true); + } + else if (sdCD->type == kSD_DetectCardByHostCD) + { + USDHC_CardDetectByData3(base, false); + } + else + { + assert(false); + } + + /* enable card detect interrupt */ + USDHC_ClearInterruptStatusFlags(base, (uint32_t)kUSDHC_CardInsertionFlag | (uint32_t)kUSDHC_CardRemovalFlag); + USDHC_EnableInterruptStatus(base, (uint32_t)kUSDHC_CardInsertionFlag | (uint32_t)kUSDHC_CardRemovalFlag); + + if (SDMMCHOST_CardDetectStatus(host) == (uint32_t)kSD_Inserted) + { + (void)SDMMC_OSAEventSet(&(host->hostEvent), SDMMC_OSA_EVENT_CARD_INSERTED); + /* notify application about the card insertion status */ + if (sdCD->callback != NULL) + { + sdCD->callback(true, sdCD->userData); + } + } + else + { + (void)SDMMC_OSAEventSet(&(host->hostEvent), SDMMC_OSA_EVENT_CARD_REMOVED); + USDHC_EnableInterruptSignal(base, kUSDHC_CardInsertionFlag); + } + + return kStatus_Success; +} + +uint32_t SDMMCHOST_CardDetectStatus(sdmmchost_t *host) +{ + sd_detect_card_t *sdCD = (sd_detect_card_t *)(host->cd); + uint32_t insertStatus = kSD_Removed; + + if (sdCD->dat3PullFunc != NULL) + { + sdCD->dat3PullFunc(kSD_DAT3PullDown); + SDMMC_OSADelay(1U); + } + + if ((USDHC_GetPresentStatusFlags(host->hostController.base) & (uint32_t)kUSDHC_CardInsertedFlag) != 0U) + { + insertStatus = kSD_Inserted; + if (sdCD->dat3PullFunc != NULL) + { + sdCD->dat3PullFunc(kSD_DAT3PullUp); + } + } + + return insertStatus; +} + +status_t SDMMCHOST_PollingCardDetectStatus(sdmmchost_t *host, uint32_t waitCardStatus, uint32_t timeout) +{ + assert(host != NULL); + assert(host->cd != NULL); + + sd_detect_card_t *cd = host->cd; + uint32_t event = 0U; + + (void)SDMMC_OSAEventGet(&(host->hostEvent), SDMMC_OSA_EVENT_CARD_INSERTED | SDMMC_OSA_EVENT_CARD_REMOVED, &event); + if ((((event & SDMMC_OSA_EVENT_CARD_INSERTED) == SDMMC_OSA_EVENT_CARD_INSERTED) && + (waitCardStatus == (uint32_t)kSD_Inserted)) || + (((event & SDMMC_OSA_EVENT_CARD_REMOVED) == SDMMC_OSA_EVENT_CARD_REMOVED) && + (waitCardStatus == (uint32_t)kSD_Removed))) + { + return kStatus_Success; + } + + /* Wait card inserted. */ + do + { + if (SDMMC_OSAEventWait(&(host->hostEvent), SDMMC_OSA_EVENT_CARD_INSERTED | SDMMC_OSA_EVENT_CARD_REMOVED, + timeout, &event) != kStatus_Success) + { + return kStatus_Fail; + } + else + { + if ((waitCardStatus == (uint32_t)kSD_Inserted) && + ((event & SDMMC_OSA_EVENT_CARD_INSERTED) == SDMMC_OSA_EVENT_CARD_INSERTED)) + { + SDMMC_OSADelay(cd->cdDebounce_ms); + if (SDMMCHOST_CardDetectStatus(host) == (uint32_t)kSD_Inserted) + { + break; + } + } + + if (((event & SDMMC_OSA_EVENT_CARD_REMOVED) == SDMMC_OSA_EVENT_CARD_REMOVED) && + (waitCardStatus == (uint32_t)kSD_Removed)) + { + break; + } + } + } while (true); + + return kStatus_Success; +} + +status_t SDMMCHOST_WaitCardDetectStatus(SDMMCHOST_TYPE *hostBase, + const sdmmchost_detect_card_t *cd, + bool waitCardStatus) +{ + assert(cd != NULL); + + while ((USDHC_GetInterruptStatusFlags(hostBase) & (uint32_t)kUSDHC_CardInsertionFlag) != (uint32_t)waitCardStatus) + { + } + + return kStatus_Success; +} + +static void SDMMCHOST_TransferCompleteCallback(USDHC_Type *base, + usdhc_handle_t *handle, + status_t status, + void *userData) +{ + uint32_t eventStatus = 0U; + + if (status == kStatus_USDHC_TransferDataFailed) + { + eventStatus = SDMMC_OSA_EVENT_TRANSFER_DATA_FAIL; + } + else if (status == kStatus_USDHC_TransferDataComplete) + { + eventStatus = SDMMC_OSA_EVENT_TRANSFER_DATA_SUCCESS; + } + else if (status == kStatus_USDHC_SendCommandFailed) + { + eventStatus = SDMMC_OSA_EVENT_TRANSFER_CMD_FAIL; + } + else if (status == kStatus_USDHC_TransferDMAComplete) + { + eventStatus = SDMMC_OSA_EVENT_TRANSFER_DMA_COMPLETE; + } + else + { + eventStatus = SDMMC_OSA_EVENT_TRANSFER_CMD_SUCCESS; + } + + (void)SDMMC_OSAEventSet(&(((sdmmchost_t *)userData)->hostEvent), eventStatus); +} + +#if SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER +void SDMMCHOST_InstallCacheAlignBuffer(sdmmchost_t *host, void *cacheAlignBuffer, uint32_t cacheAlignBufferSize) +{ + assert(((uint32_t)cacheAlignBuffer & (SDMMC_DATA_BUFFER_ALIGN_CACHE - 1)) == 0U); + assert(cacheAlignBufferSize >= SDMMC_DATA_BUFFER_ALIGN_CACHE * 2U); + + host->cacheAlignBuffer = cacheAlignBuffer; + host->cacheAlignBufferSize = cacheAlignBufferSize; +} +#endif + +status_t SDMMCHOST_TransferFunction(sdmmchost_t *host, sdmmchost_transfer_t *content) +{ + status_t error = kStatus_Success; + uint32_t event = 0U; + usdhc_adma_config_t dmaConfig; + +#if SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER + usdhc_scatter_gather_data_list_t sgDataList0; + usdhc_scatter_gather_data_list_t sgDataList1; + usdhc_scatter_gather_data_t scatterGatherData; + uint32_t unAlignSize = 0U; + usdhc_scatter_gather_transfer_t transfer = {.data = NULL, .command = content->command}; +#endif + + if (content->data != NULL) + { + (void)memset(&dmaConfig, 0, sizeof(usdhc_adma_config_t)); + /* config adma */ + dmaConfig.dmaMode = kUSDHC_DmaModeAdma2; +#if !(defined(FSL_FEATURE_USDHC_HAS_NO_RW_BURST_LEN) && FSL_FEATURE_USDHC_HAS_NO_RW_BURST_LEN) + dmaConfig.burstLen = kUSDHC_EnBurstLenForINCR; +#endif + dmaConfig.admaTable = host->dmaDesBuffer; + dmaConfig.admaTableWords = host->dmaDesBufferWordsNum; + +#if SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER + + if ((host->cacheAlignBuffer == NULL) || ((host->cacheAlignBufferSize == 0U))) + { + /* application should register cache line size align buffer for host driver maintain the unalign data + * transfer */ + assert(false); + return kStatus_InvalidArgument; + } + + scatterGatherData.enableAutoCommand12 = content->data->enableAutoCommand12; + scatterGatherData.enableAutoCommand23 = content->data->enableAutoCommand23; + scatterGatherData.enableIgnoreError = content->data->enableIgnoreError; + scatterGatherData.dataType = content->data->dataType; + scatterGatherData.blockSize = content->data->blockSize; + + transfer.data = &scatterGatherData; + + if (content->data->rxData != NULL) + { + scatterGatherData.sgData.dataAddr = content->data->rxData; + scatterGatherData.dataDirection = kUSDHC_TransferDirectionReceive; + } + else + { + scatterGatherData.sgData.dataAddr = (uint32_t *)content->data->txData; + scatterGatherData.dataDirection = kUSDHC_TransferDirectionSend; + } + scatterGatherData.sgData.dataSize = content->data->blockSize * content->data->blockCount; + scatterGatherData.sgData.dataList = NULL; + + /* + * If the receive transfer buffer address is not cache line size align, such as + *--------------------------------------------------------------------- + *| unalign head region| align region | unaling tail region| + *--------------------------------------------------------------------- + * + * Then host driver will splict it into three scatter gather transfers, + * 1. host->cacheAlignBuffer will be used as first scatter gather data address, the data size is the unalign + *head region size. + * 2. align region start address will be used as second scatter gather data address, the data size is the align + *region size. + * 3. (uint32_t *)((uint32_t)host->cacheAlignBuffer + SDMMC_DATA_BUFFER_ALIGN_CACHE) + * will be used as third scatter gather data address, the data size is the unaling tail region size. + * + * Once scatter gather transfer done, + * 1. host driver will invalidate the cache for the data buffer in the scatter gather transfer list + * 2. host driver will copy data from host->cacheAlignBuffer to unalign head region + * 3. host driver will copy data from (uint32_t *)((uint32_t)host->cacheAlignBuffer + + *SDMMC_DATA_BUFFER_ALIGN_CACHE) to unalign tail region + * + * At last, cache line unalign transfer done + */ + if ((content->data->rxData != NULL) && + (((uint32_t)content->data->rxData % SDMMC_DATA_BUFFER_ALIGN_CACHE) != 0U)) + { + unAlignSize = ((uint32_t)content->data->rxData - + (((uint32_t)content->data->rxData) & (~(SDMMC_DATA_BUFFER_ALIGN_CACHE - 1)))); + sgDataList1.dataSize = unAlignSize; + unAlignSize = SDMMC_DATA_BUFFER_ALIGN_CACHE - unAlignSize; + + scatterGatherData.sgData.dataAddr = host->cacheAlignBuffer; + scatterGatherData.sgData.dataSize = unAlignSize; + scatterGatherData.sgData.dataList = &sgDataList0; + + sgDataList0.dataAddr = + (void *)((((uint32_t)content->data->rxData) & (~(SDMMC_DATA_BUFFER_ALIGN_CACHE - 1))) + + SDMMC_DATA_BUFFER_ALIGN_CACHE); + sgDataList0.dataSize = content->data->blockCount * content->data->blockSize - SDMMC_DATA_BUFFER_ALIGN_CACHE; + sgDataList0.dataList = &sgDataList1; + sgDataList1.dataAddr = (uint32_t *)((uint32_t)host->cacheAlignBuffer + SDMMC_DATA_BUFFER_ALIGN_CACHE); + sgDataList1.dataList = NULL; + } +#endif + +#if ((defined __DCACHE_PRESENT) && __DCACHE_PRESENT) || (defined FSL_FEATURE_HAS_L1CACHE && FSL_FEATURE_HAS_L1CACHE) +#if !(defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) + if (host->enableCacheControl == kSDMMCHOST_CacheControlRWBuffer) + { + /* no matter read or write transfer, clean the cache line anyway to avoid data miss */ + DCACHE_CleanByRange( + (uint32_t)(content->data->txData == NULL ? content->data->rxData : content->data->txData), + (content->data->blockSize) * (content->data->blockCount)); + } +#endif +#endif + } + + /* clear redundant transfer event flag */ + (void)SDMMC_OSAEventClear(&(host->hostEvent), SDMMCHOST_TRANSFER_CMD_EVENT); + +#if SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER + error = USDHC_TransferScatterGatherADMANonBlocking(host->hostController.base, &host->handle, &dmaConfig, &transfer); +#else + error = USDHC_TransferNonBlocking(host->hostController.base, &host->handle, &dmaConfig, content); +#endif + + if (error == kStatus_Success) + { + /* wait command event */ + if ((kStatus_Fail == SDMMC_OSAEventWait(&(host->hostEvent), SDMMCHOST_TRANSFER_CMD_EVENT, + SDMMCHOST_TRANSFER_COMPLETE_TIMEOUT, &event)) || + ((event & SDMMC_OSA_EVENT_TRANSFER_CMD_FAIL) != 0U)) + { + error = kStatus_Fail; + } + else + { + if (content->data != NULL) + { + if ((event & SDMMC_OSA_EVENT_TRANSFER_DATA_SUCCESS) == 0U) + { + if (((event & SDMMC_OSA_EVENT_TRANSFER_DATA_FAIL) != 0U) || + (kStatus_Fail == SDMMC_OSAEventWait(&(host->hostEvent), SDMMCHOST_TRANSFER_DATA_EVENT, + SDMMCHOST_TRANSFER_COMPLETE_TIMEOUT, &event) || + ((event & SDMMC_OSA_EVENT_TRANSFER_DATA_FAIL) != 0U))) + { + error = kStatus_Fail; + } + } + } + } + } + + if (error != kStatus_Success) + { + /* host error recovery */ + SDMMCHOST_ErrorRecovery(host->hostController.base); + } + else + { + if ((content->data != NULL) && (content->data->rxData != NULL)) + { +#if SDMMCHOST_ENABLE_CACHE_LINE_ALIGN_TRANSFER + if (((uint32_t)content->data->rxData % SDMMC_DATA_BUFFER_ALIGN_CACHE) != 0U) + { +#if ((defined __DCACHE_PRESENT) && __DCACHE_PRESENT) || (defined FSL_FEATURE_HAS_L1CACHE && FSL_FEATURE_HAS_L1CACHE) +#if !(defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) + if (host->enableCacheControl == kSDMMCHOST_CacheControlRWBuffer) + { + DCACHE_InvalidateByRange((uint32_t)scatterGatherData.sgData.dataAddr, + scatterGatherData.sgData.dataSize); + + DCACHE_InvalidateByRange((uint32_t)sgDataList0.dataAddr, sgDataList0.dataSize); + + DCACHE_InvalidateByRange((uint32_t)sgDataList1.dataAddr, sgDataList1.dataSize); + } +#endif +#endif + memcpy(content->data->rxData, scatterGatherData.sgData.dataAddr, scatterGatherData.sgData.dataSize); + memcpy((void *)((uint32_t)content->data->rxData + content->data->blockCount * content->data->blockSize - + sgDataList1.dataSize), + sgDataList1.dataAddr, sgDataList1.dataSize); + } + else +#endif + { +#if ((defined __DCACHE_PRESENT) && __DCACHE_PRESENT) || (defined FSL_FEATURE_HAS_L1CACHE && FSL_FEATURE_HAS_L1CACHE) +#if !(defined(FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) && FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL) + /* invalidate the cache for read */ + if (host->enableCacheControl == kSDMMCHOST_CacheControlRWBuffer) + { + DCACHE_InvalidateByRange((uint32_t)content->data->rxData, + (content->data->blockSize) * (content->data->blockCount)); + } +#endif +#endif + } + } + } + + return error; +} + +static void SDMMCHOST_ErrorRecovery(USDHC_Type *base) +{ + uint32_t status = 0U; + /* get host present status */ + status = USDHC_GetPresentStatusFlags(base); + /* check command inhibit status flag */ + if ((status & (uint32_t)kUSDHC_CommandInhibitFlag) != 0U) + { + /* reset command line */ + (void)USDHC_Reset(base, kUSDHC_ResetCommand, 100U); + } + /* check data inhibit status flag */ + if ((status & (uint32_t)kUSDHC_DataInhibitFlag) != 0U) + { + /* reset data line */ + (void)USDHC_Reset(base, kUSDHC_ResetData, 100U); + } +} + +void SDMMCHOST_SetCardPower(sdmmchost_t *host, bool enable) +{ + /* host not support */ +} + +void SDMMCHOST_SetCardBusWidth(sdmmchost_t *host, uint32_t dataBusWidth) +{ + assert((dataBusWidth != (uint32_t)kUSDHC_DataBusWidth8Bit) || + ((dataBusWidth == (uint32_t)kUSDHC_DataBusWidth8Bit) && + ((uint32_t)SDMMCHOST_INSTANCE_SUPPORT_8_BIT_WIDTH(host) != 0U))); + + USDHC_SetDataBusWidth(host->hostController.base, dataBusWidth == (uint32_t)kSDMMC_BusWdith1Bit ? + kUSDHC_DataBusWidth1Bit : + dataBusWidth == (uint32_t)kSDMMC_BusWdith4Bit ? + kUSDHC_DataBusWidth4Bit : + kUSDHC_DataBusWidth8Bit); +} + +void SDMMCHOST_PowerOffCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr) +{ + if (pwr != NULL) + { + pwr->powerOff(); + SDMMC_OSADelay(pwr->powerOffDelay_ms); + } +} + +void SDMMCHOST_PowerOnCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr) +{ + /* use user define the power on function */ + if (pwr != NULL) + { + pwr->powerOn(); + SDMMC_OSADelay(pwr->powerOnDelay_ms); + } + else + { + /* Delay several milliseconds to make card stable. */ + SDMMC_OSADelay(1000U); + } +} + +status_t SDMMCHOST_Init(sdmmchost_t *host) +{ + assert(host != NULL); + + usdhc_transfer_callback_t usdhcCallback = {0}; + usdhc_host_t *usdhcHost = &(host->hostController); + + /* sdmmc osa init */ + SDMMC_OSAInit(); + + /* Initializes USDHC. */ + usdhcHost->config.endianMode = kUSDHC_EndianModeLittle; + usdhcHost->config.dataTimeout = 0xFU; + usdhcHost->config.readWatermarkLevel = 0x80U; + usdhcHost->config.writeWatermarkLevel = 0x80U; + USDHC_Init(usdhcHost->base, &(usdhcHost->config)); + + /* Create handle for SDHC driver */ + usdhcCallback.TransferComplete = SDMMCHOST_TransferCompleteCallback; + USDHC_TransferCreateHandle(usdhcHost->base, &host->handle, &usdhcCallback, host); + + /* Create transfer event. */ + if (kStatus_Success != SDMMC_OSAEventCreate(&(host->hostEvent))) + { + return kStatus_Fail; + } + + return kStatus_Success; +} + +void SDMMCHOST_Reset(sdmmchost_t *host) +{ + USDHC_Type *base = host->hostController.base; + + /* voltage switch to normal but not 1.8V */ + UDSHC_SelectVoltage(base, false); + /* Disable DDR mode */ + USDHC_EnableDDRMode(base, false, 0U); + /* disable tuning */ +#if defined(FSL_FEATURE_USDHC_HAS_SDR50_MODE) && (FSL_FEATURE_USDHC_HAS_SDR50_MODE) + USDHC_EnableStandardTuning(base, 0, 0, false); + USDHC_EnableAutoTuning(host->hostController.base, false); +#endif + +#if FSL_FEATURE_USDHC_HAS_HS400_MODE + /* Disable HS400 mode */ + USDHC_EnableHS400Mode(base, false); + /* Disable DLL */ + USDHC_EnableStrobeDLL(base, false); +#endif + /* reset data/command/tuning circuit */ + (void)USDHC_Reset(base, kUSDHC_ResetAll, 100U); + + USDHC_DisableInterruptSignal(base, kUSDHC_AllInterruptFlags); +} + +void SDMMCHOST_Deinit(sdmmchost_t *host) +{ + usdhc_host_t *sdhcHost = &host->hostController; + SDMMCHOST_Reset(host); + USDHC_Deinit(sdhcHost->base); + (void)SDMMC_OSAEventDestroy(&(host->hostEvent)); +} + +void SDMMCHOST_SwitchToVoltage(sdmmchost_t *host, uint32_t voltage) +{ + if (voltage == (uint32_t)kSDMMC_OperationVoltage180V) + { + UDSHC_SelectVoltage(host->hostController.base, true); + } + else + { + UDSHC_SelectVoltage(host->hostController.base, false); + } +} + +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 || SDMMCHOST_SUPPORT_HS200 || SDMMCHOST_SUPPORT_HS400 +static status_t SDMMCHOST_ExecuteStdTuning(sdmmchost_t *host, uint32_t tuningCmd, uint32_t *revBuf, uint32_t blockSize) +{ + sdmmchost_transfer_t content = {0U}; + sdmmchost_cmd_t command = {0U}; + sdmmchost_data_t data = {0U}; + bool tuningError = true; + status_t error = kStatus_Success; + + command.index = tuningCmd; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR1; + + data.blockSize = blockSize; + data.blockCount = 1U; + data.rxData = revBuf; + data.dataType = kUSDHC_TransferDataTuning; + + content.command = &command; + content.data = &data; + + (void)USDHC_Reset(host->hostController.base, kUSDHC_ResetTuning, 100U); + /* disable standard tuning */ + USDHC_EnableStandardTuning(host->hostController.base, SDMMCHOST_STANDARD_TUNING_START, SDMMCHOST_TUINIG_STEP, + false); + /* + * Tuning fail found on some SOCS caused by the difference of delay cell, so we need to i + * ncrease the tuning counter to cover the adjustable tuninig window + */ + USDHC_SetStandardTuningCounter(host->hostController.base, SDMMCHOST_STANDARD_TUNING_COUNTER); + /* enable the standard tuning */ + USDHC_EnableStandardTuning(host->hostController.base, SDMMCHOST_STANDARD_TUNING_START, SDMMCHOST_TUINIG_STEP, true); + + while (true) + { + error = SDMMCHOST_TransferFunction(host, &content); + /* send tuning block */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + SDMMC_OSADelay(1U); + + /*wait excute tuning bit clear*/ + if ((USDHC_GetExecuteStdTuningStatus(host->hostController.base) != 0U)) + { + continue; + } + + /* if tuning error , re-tuning again */ + if ((USDHC_CheckTuningError(host->hostController.base) != 0U) && tuningError) + { + tuningError = false; + /* enable the standard tuning */ + USDHC_EnableStandardTuning(host->hostController.base, SDMMCHOST_STANDARD_TUNING_START, + SDMMCHOST_TUINIG_STEP, true); + (void)USDHC_AdjustDelayForManualTuning(host->hostController.base, SDMMCHOST_STANDARD_TUNING_START); + } + else + { + break; + } + } + + /* check tuning result*/ + if (USDHC_CheckStdTuningResult(host->hostController.base) == 0U) + { + return kStatus_SDMMC_TuningFail; + } + + USDHC_EnableAutoTuning(host->hostController.base, true); + + return kStatus_Success; +} + +static status_t SDMMCHOST_ReceiveTuningBlock(sdmmchost_t *host, uint32_t tuningCmd, uint32_t *revBuf, uint32_t size) +{ + assert(revBuf != NULL); + + usdhc_command_t command = {0U}; + uint32_t interruptStatus = 0U; + uint32_t transferredWords = 0U; + uint32_t wordSize = size / sizeof(uint32_t); + USDHC_Type *base = host->hostController.base; + + command.index = tuningCmd; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR1; + command.flags = kUSDHC_DataPresentFlag; + + /* disable DMA first */ + USDHC_EnableInternalDMA(base, false); + /* set data configurations */ + USDHC_SetDataConfig(base, kUSDHC_TransferDirectionReceive, 1U, size); + /* enable status */ + USDHC_EnableInterruptStatus(base, (uint32_t)kUSDHC_CommandCompleteFlag | (uint32_t)kUSDHC_CommandErrorFlag | + (uint32_t)kUSDHC_BufferReadReadyFlag); + /* polling cmd done */ + USDHC_SendCommand(base, &command); + while (0U == (interruptStatus & ((uint32_t)kUSDHC_CommandCompleteFlag | (uint32_t)kUSDHC_CommandErrorFlag))) + { + interruptStatus = USDHC_GetInterruptStatusFlags(base); + } + /* clear interrupt status */ + USDHC_ClearInterruptStatusFlags(base, interruptStatus); + /* check command inhibit status flag */ + if ((USDHC_GetPresentStatusFlags(base) & (uint32_t)kUSDHC_CommandInhibitFlag) != 0U) + { + /* reset command line */ + (void)USDHC_Reset(base, kUSDHC_ResetCommand, 100U); + } + + while (0U == (interruptStatus & (uint32_t)kUSDHC_BufferReadReadyFlag)) + { + interruptStatus = USDHC_GetInterruptStatusFlags(base); + } + + while (transferredWords < wordSize) + { + revBuf[transferredWords++] = USDHC_ReadData(base); + } + + USDHC_ClearInterruptStatusFlags( + base, interruptStatus | (uint32_t)kUSDHC_DataCompleteFlag | (uint32_t)kUSDHC_DataErrorFlag); + + return kStatus_Success; +} + +static status_t SDMMC_CheckTuningResult(uint32_t *buffer, uint32_t size) +{ + uint32_t i = 0U; + const uint32_t *pattern = SDMMC_TuningBlockPattern4Bit; + + if (size == 128U) + { + pattern = SDMMC_TuningBlockPattern8Bit; + } + + for (i = 0U; i < size / sizeof(uint32_t); i++) + { + if (pattern[i] != SWAP_WORD_BYTE_SEQUENCE(buffer[i])) + { +#if defined SDMMC_ENABLE_LOG_PRINT + SDMMC_LOG("tuning unmatch target: %x, read :%x\r\n", pattern[i], SWAP_WORD_BYTE_SEQUENCE(buffer[i])); +#endif + return kStatus_SDMMC_TuningFail; + } + } + + return kStatus_Success; +} + +static status_t SDMMCHOST_ExecuteManualTuning(sdmmchost_t *host, + uint32_t tuningCmd, + uint32_t *revBuf, + uint32_t blockSize) +{ + uint32_t *buffer = revBuf; + uint32_t tuningDelayCell = 0U; + uint32_t validDelayCellStart = 0U; + bool validWindowFound = false; + uint32_t validWindowCounter = 0U; + status_t ret = kStatus_Success; + + (void)USDHC_Reset(host->hostController.base, kUSDHC_ResetTuning, 100U); + USDHC_EnableManualTuning(host->hostController.base, true); + + while (true) + { + (void)USDHC_AdjustDelayForManualTuning(host->hostController.base, tuningDelayCell); + + (void)SDMMCHOST_ReceiveTuningBlock(host, tuningCmd, buffer, blockSize); + + if (kStatus_Success == SDMMC_CheckTuningResult(buffer, blockSize)) + { + if (validWindowFound == false) + { + validDelayCellStart = tuningDelayCell; + validWindowFound = true; + } + + if ((validWindowCounter + validDelayCellStart) != tuningDelayCell) + { + validWindowFound = false; + validWindowCounter = 0U; + } + + validWindowCounter++; + +#if defined SDMMC_ENABLE_LOG_PRINT + SDMMC_LOG("tuning pass point: %d\r\n", tuningDelayCell); +#endif + } + else + { + if ((validWindowFound) && (validWindowCounter > 2U)) + { + break; + } + } + + if (++tuningDelayCell >= SDMMCHOST_MAX_TUNING_DELAY_CELL) + { + break; + } + + (void)memset(buffer, 0, blockSize); + + SDMMC_OSADelay(2U); + } + (void)memset(buffer, 0, blockSize); + + SDMMC_OSADelay(2U); + + /* select middle position of the window */ + (void)USDHC_AdjustDelayForManualTuning(host->hostController.base, validDelayCellStart + validWindowCounter / 2U); + /* send tuning block with the average delay cell */ + (void)SDMMCHOST_ReceiveTuningBlock(host, tuningCmd, buffer, blockSize); + ret = SDMMC_CheckTuningResult(buffer, blockSize); + /* abort tuning */ + USDHC_EnableManualTuning(host->hostController.base, false); + + /* enable auto tuning */ + USDHC_EnableAutoTuning(host->hostController.base, true); + + return ret; +} + +status_t SDMMCHOST_ExecuteTuning(sdmmchost_t *host, uint32_t tuningCmd, uint32_t *revBuf, uint32_t blockSize) +{ + if (host->tuningType == (uint32_t)kSDMMCHOST_StandardTuning) + { + return SDMMCHOST_ExecuteStdTuning(host, tuningCmd, revBuf, blockSize); + } + + return SDMMCHOST_ExecuteManualTuning(host, tuningCmd, revBuf, blockSize); +} +#endif + +status_t SDMMCHOST_StartBoot(sdmmchost_t *host, + sdmmchost_boot_config_t *hostConfig, + sdmmchost_cmd_t *cmd, + uint8_t *buffer) +{ + sdmmchost_transfer_t content = {0}; + sdmmchost_data_t data = {0}; + status_t error = kStatus_Success; + + USDHC_SetMmcBootConfig(host->hostController.base, hostConfig); + + data.blockSize = hostConfig->blockSize; + data.blockCount = hostConfig->blockCount; + data.rxData = (uint32_t *)(uint32_t)buffer; + data.dataType = kUSDHC_TransferDataBoot; + + content.data = &data; + content.command = cmd; + + error = SDMMCHOST_TransferFunction(host, &content); + /* should check tuning error during every transfer*/ + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t SDMMCHOST_ReadBootData(sdmmchost_t *host, sdmmchost_boot_config_t *hostConfig, uint8_t *buffer) +{ + sdmmchost_cmd_t command = {0}; + sdmmchost_transfer_t content = {0}; + sdmmchost_data_t data = {0}; + status_t error = kStatus_Success; + + USDHC_SetMmcBootConfig(host->hostController.base, hostConfig); + USDHC_EnableMmcBoot(host->hostController.base, true); + + data.blockSize = hostConfig->blockSize; + data.blockCount = hostConfig->blockCount; + data.rxData = (uint32_t *)(uint32_t)buffer; + data.dataType = kUSDHC_TransferDataBootcontinous; + /* no command should be send out */ + command.type = kCARD_CommandTypeEmpty; + + content.data = &data; + content.command = &command; + + error = SDMMCHOST_TransferFunction(host, &content); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} diff --git a/middleware/sdmmc/mmc/ChangeLogKSDK.txt b/middleware/sdmmc/mmc/ChangeLogKSDK.txt new file mode 100644 index 0000000..3f1b3bc --- /dev/null +++ b/middleware/sdmmc/mmc/ChangeLogKSDK.txt @@ -0,0 +1,104 @@ +/*! +@page middleware_log Middleware Change Log + +@section mmc MMC Card driver for MCUXpresso SDK + The current driver version is 2.4.1. + + - 2.4.1 + - Improvements + - Improved the voltage window argument of CMD1 according to host capabilty instead of use card ocr directly. + - Added host HS200/HS400/8bit bus width capability validation during card initialization. + - Used cache line size align buffer for MMC relate api. + - Increased the CMD13 timeout count to avoid polling CMD13 time out issue. + - Bug Fixes + - Fixed violations of MISRA C-2012 rule 11.9, 15.7, 4.7, 16.4, 10.1, 10.3, 10.4, 11.3, 14.4, 10.6, 17.7, 16.1, 16.3. + + - 2.4.0 + - Improvements + - Added new apis MMC_EnableCacheControl/MMC_FlushCache to support cache feature. + + - 2.3.1 + - Improvements + - Removed the dead loop while polling DAT0 and CMD13 instead of using timeout mechanism. + - Added card state check before switching to HS400 to improve the emmc initialization stability. + - Removed the redundant operation of memset internal buffer in MMC_WrtiteBlocks function. + - Bug Fixes + - Fixed the sandisk emmc always busy while sending CMD1 without supported voltage provide in argument. + + - 2.3.0 + - Improvements + - Deprecated api MMC_PowerOnCard/MMC_PowerOffCard by api MMC_SetCardPower. + - Added internalBuffer in mmc_card_t and removed rawCid/rawCsd/rawExtendedCsd. + - Added retuning support during data transfer under HS200 mode. + - Increased the read/write blocks failed retry times for stability. + - Added delay while retry the CMD1 for stability. + - Added legacy card support, the card not support CMD6, CMD8. + + - 2.2.13 + - Improvements + - Used the boot mode value instead of boot mode mask value as the parameter of MMC_SetBootConfig to improve user experience. + - Removed dynamic voltage switch feature for mmc, according to JEDEC standard, the voltage should be fixed after power up. + + - 2.2.12 + - Improvement + - Increased the CMD1 retry times in the MMC card driver to improve driver compatibility. + - Bug Fixes + - Fixed the build warning by changing the old style function declaration static + status_t inline to static inline status_t(found by adding -Wold-style-declaration in armgcc build flag). + - Fixed the fall through build warning by adding SUPPRESS_FALL_THROUGH_WARNING() in mmc driver. + + - 2.2.7 + - Bug Fixes + - Fixed MDK 66-D warning. + + - 2.2.6 + - Improvements + - Saved MMC OCR registers while sending CMD1 with argument 0. + + - Bug Fixes + - Added MMC_PowerOn function in which there is delay function after powerup sdcard. Otherwise, the + card initialization by fail. + + - 2.2.5 + - Improvements + - Added SDMMC_ENABLE_SOFTWARE_TUNING to enable/disable software tuning and it is disabled by default. + + - 2.2.4 + - Bug Fixes + - Fixed DDR mode data sequence miss issue, which is caused by NIBBLE_POS. + + - Improvements + - Increased g_sdmmc 512byte to improve the performance when application use a non-word align data buffer address. + - Used OCR access mode bits to determine the mmccard high capacity flag. + + - 2.2.3 + - Bug Fixes + - Added response check for send operation condition command. If not checked, the card may occasionally init fail. + + - 2.2.1 + - Improvements + - Improved MMC Boot feature. + + - 2.2.0 + - Improvements + - Optimized tuning/mmc switch voltage/mmc select power class/mmc select timing function. + - Added strobe dll for mmc HS400 mode. + - Added write complete wait operation for MMC_Write to fix command timeout issue. + + - 2.1.2 + - Improvements + - Improved SDMMC to support eMMC v5.0. + - Bug Fixes + - Fixed incorrect comparison between count and length in MMC_ReadBlocks/MMC_WriteBlocks. + + - 2.1.1 + - Bug Fixes + - Fixed the block range boundary error when transferring data to MMC card. + + - 2.1.0 + - Improvements + - Optimized the function of setting maximum data bus width for MMC card. + + - 2.0.0 + - Initial version +*/ diff --git a/middleware/sdmmc/mmc/fsl_mmc.c b/middleware/sdmmc/mmc/fsl_mmc.c new file mode 100644 index 0000000..fe5c288 --- /dev/null +++ b/middleware/sdmmc/mmc/fsl_mmc.c @@ -0,0 +1,2874 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include +#include "fsl_mmc.h" + +/******************************************************************************* + * Definitons + ******************************************************************************/ +/*! @brief The divide value used to avoid float point calculation when calculate max speed in normal mode. */ +#define DIVIDER_IN_TRANSFER_SPEED (10U) +/*! @brief MMC CMD1 retry times */ +#ifndef MMC_CMD1_RETRY_TIMES +#define MMC_CMD1_RETRY_TIMES (10000U) +#endif +#ifndef MMC_CMD13_RETRY_TIMES +#define MMC_CMD13_RETRY_TIMES (1000000U) +#endif +#ifndef MMC_CARD_ACCESS_WAIT_IDLE_TIMEOUT +#define MMC_CARD_ACCESS_WAIT_IDLE_TIMEOUT (10000U) +#endif +/*!@brief power reset delay */ +#define MMC_POWER_RESET_DELAY (500U) +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Send SELECT_CARD command to set the card enter or exit transfer state. + * + * @param card Card descriptor. + * @param isSelected True to enter transfer state. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static inline status_t MMC_SelectCard(mmc_card_t *card, bool isSelected); + +/*! + * @brief Wait write process complete. + * + * @param card Card descriptor. + * @retval kStatus_Timeout Operation timeout. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_WaitWriteComplete(mmc_card_t *card); + +/*! + * @brief Send SET_BLOCK_COUNT command. + * + * @param card Card descriptor. + * @param blockCount Block count. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static inline status_t MMC_SetBlockCount(mmc_card_t *card, uint32_t blockCount); + +/*! + * @brief Send GO_IDLE command to reset all cards to idle state + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static inline status_t MMC_GoIdle(mmc_card_t *card); + +/*! + * @brief Send STOP_TRANSMISSION command to card to stop ongoing data transferring. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_StopTransmission(mmc_card_t *card); + +/*! + * @brief Send SET_BLOCK_SIZE command to set the block length in bytes for MMC cards. + * + * @param card Card descriptor. + * @param blockSize Block size. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static inline status_t MMC_SetBlockSize(mmc_card_t *card, uint32_t blockSize); + +/*! + * @brief Send SEND_OPERATION_CONDITION command to validate if the card support host's voltage window + * + * @param card Card descriptor. + * @param arg Command argument. + * @retval kStatus_SDMMC_TransferFailed Transfers failed. + * @retval kStatus_Timeout Operation timeout. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SendOperationCondition(mmc_card_t *card, uint32_t arg); + +/*! + * @brief Send SET_RCA command to set the relative address of the card. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SetRelativeAddress(mmc_card_t *card); + +/*! + * @brief Decode CSD register content. + * + * @param card Card descriptor. + * @param rawCsd raw CSD register content. + */ +static void MMC_DecodeCsd(mmc_card_t *card, uint32_t *rawCsd); + +/*! + * @brief Set the card to max transfer speed in non-high speed mode. + * + * @param card Card descriptor. + */ +static void MMC_SetMaxFrequency(mmc_card_t *card); + +/*! + * @brief Set erase unit size of the card + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_ConfigureExtendedCsdFailed Configure Extended CSD failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SetMaxEraseUnitSize(mmc_card_t *card); + +/*! + * @brief Send SWITCH command to set the specific byte in Extended CSD. + * + * Example: + @code + mmc_extended_csd_config_t config; + config.accessMode = kMMC_ExtendedCsdAccessModeSetBits; + config.ByteIndex = 1U; + config.ByteValue = 0x033U; + config.commandSet = kMMC_CommandSetStandard; + MMC_SetExtendedCsdConfig(card, &config); + @endcode + * + * @param card Card descriptor. + * @param config Configuration for Extended CSD. + * @param sendStatusOnly true is use CMD13 polling status only, otherewise polling DAT0 firstly. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_WaitWriteCompleteFailed Wait write complete failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SetExtendedCsdConfig(mmc_card_t *card, + const mmc_extended_csd_config_t *config, + bool sendStatusOnly); + +/*! + * @brief Decode the Extended CSD register + * + * @param card Card descriptor. + * @param rawExtendedCsd Raw extended CSD register content. + */ +static void MMC_DecodeExtendedCsd(mmc_card_t *card, uint32_t *rawExtendedCsd); + +/*! + * @brief Send SEND_EXTENDED_CSD command to get the content of the Extended CSD register + * Allow read the special byte index value if targetAddr is not NULL + * @param card Card descriptor. + * @param targetAddr Pointer to store the target byte value. + * @param byteIndex Target byte index. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SendExtendedCsd(mmc_card_t *card, uint8_t *targetAddr, uint32_t byteIndex); + +/*! + * @brief Set the power class of the card at specific bus width and host intended voltage window. + * + * @param card Card descriptor. + * @return The power class switch status. + */ +static status_t MMC_SetPowerClass(mmc_card_t *card); + +/*! + * @brief Send test pattern to get the functional pin in the MMC bus + * + * @param card Card descriptor. + * @param blockSize Test pattern block size. + * @param pattern Test pattern data buffer. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SendTestPattern(mmc_card_t *card, uint32_t blockSize, uint32_t *pattern); + +/*! + * @brief Receive test pattern reversed by the card. + * + * @param card Card descriptor. + * @param blockSize Test pattern block size. + * @param pattern Test pattern data buffer. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_ReceiveTestPattern(mmc_card_t *card, uint32_t blockSize, uint32_t *pattern); + +/*! + * @brief Bus test procedure to get the functional data pin in the bus + * + * @param card Card descriptor. + * @param width Data bus width. + * @retval kStatus_SDMMC_SendTestPatternFailed Send test pattern failed. + * @retval kStatus_SDMMC_ReceiveTestPatternFailed Receive test pattern failed. + * @retval kStatus_Fail Test failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_TestDataBusWidth(mmc_card_t *card, mmc_data_bus_width_t width); + +/*! + * @brief Send SET_BUS_WIDTH command to set the bus width. + * + * @param card Card descriptor. + * @param width Data bus width. + * @retval kStatus_SDMMC_ConfigureExtendedCsdFailed Configure extended CSD failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SetDataBusWidth(mmc_card_t *card, mmc_data_bus_width_t width); + +/*! + * @brief Set max the bus width automatically + * + * @param card Card descriptor. + * @param targetTiming switch target timing + * @retval kStatus_SDMMC_SetDataBusWidthFailed switch fail. + * @retval kStatus_Success switch success. + */ +static status_t MMC_SetMaxDataBusWidth(mmc_card_t *card, mmc_high_speed_timing_t targetTiming); + +/*! + * @brief Switch the card to high speed mode + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_ConfigureExtendedCsdFailed Configure extended CSD failed. + * @retval kStatus_SDMMC_CardNotSupport Card doesn't support high speed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SelectBusTiming(mmc_card_t *card); + +/*! + * @brief select card HS_TIMING value and card driver strength + * + * @param card Card descriptor. + * @param timing Timing interface value. + * @param driverStrength driver strength value. + * @retval kStatus_Success switch success. + * @retval kStatus_SDMMC_ConfigureExtendedCsdFailed , config extend csd register fail. + */ +static status_t MMC_SwitchHSTiming(mmc_card_t *card, uint8_t timing, uint8_t driverStrength); + +#if SDMMCHOST_SUPPORT_HS400 +/*! + * @brief switch to HS400 mode. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_ConfigureExtendedCsdFailed Configure extended CSD failed. + * @retval kStatus_SDMMC_SwitchBusTimingFailed switch bus timing fail. + * @retval kStatus_SDMMC_SetDataBusWidthFailed switch bus width fail. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SwitchToHS400(mmc_card_t *card); +#endif + +#if SDMMCHOST_SUPPORT_HS200 +/*! + * @brief switch to HS200 mode. + * + * @param card Card descriptor. + * @param freq Target frequency. + * @retval kStatus_SDMMC_ConfigureExtendedCsdFailed Configure extended CSD failed. + * @retval kStatus_SDMMC_TuningFail tuning fail. + * @retval kStatus_SDMMC_SetDataBusWidthFailed switch bus width fail. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SwitchToHS200(mmc_card_t *card, uint32_t freq); +#endif + +/*! + * @brief switch to HS400 mode. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_ConfigureExtendedCsdFailed Configure extended CSD failed. + * @retval kStatus_SDMMC_SetDataBusWidthFailed switch bus width fail. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SwitchToHighSpeed(mmc_card_t *card); + +/*! + * @brief Decode CID register + * + * @param card Card descriptor. + * @param rawCid Raw CID register content. + */ +static void MMC_DecodeCid(mmc_card_t *card, uint32_t *rawCid); + +/*! + * @brief Send ALL_SEND_CID command + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_AllSendCid(mmc_card_t *card); + +/*! + * @brief Send SEND_CSD command to get CSD from card + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_SendCsd(mmc_card_t *card); + +/*! + * @brief Check if the block range accessed is within current partition. + * + * @param card Card descriptor. + * @param startBlock Start block to access. + * @param blockCount Block count to access. + * @retval kStatus_InvalidArgument Invalid argument. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_CheckBlockRange(mmc_card_t *card, uint32_t startBlock, uint32_t blockCount); + +/*! + * @brief Check if the erase group range accessed is within current partition. + * + * @param card Card descriptor. + * @param startGroup Start group to access. + * @param endGroup End group to access. + * @retval kStatus_InvalidArgument Invalid argument. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_CheckEraseGroupRange(mmc_card_t *card, uint32_t startGroup, uint32_t endGroup); + +#if SDMMCHOST_SUPPORT_HS200 || SDMMCHOST_SUPPORT_HS400 +/*! + * @brief MMC excute tuning function. + * + * @param card Card descriptor. + * @retval kStatus_Success Operate successfully. + * @retval kStatus_SDMMC_TuningFail tuning fail. + * @retval kStatus_SDMMC_TransferFailed transfer fail + */ +static inline status_t MMC_ExecuteTuning(mmc_card_t *card); +#endif +/*! + * @brief Read data from specific MMC card + * + * @param card Card descriptor. + * @param buffer Buffer to save received data. + * @param startBlock Start block to read. + * @param blockSize Block size. + * @param blockCount Block count to read. + * @retval kStatus_SDMMC_CardNotSupport Card doesn't support. + * @retval kStatus_SDMMC_WaitWriteCompleteFailed Wait write complete failed. + * @retval kStatus_SDMMC_SetBlockCountFailed Set block count failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_StopTransmissionFailed Stop transmission failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_Read( + mmc_card_t *card, uint8_t *buffer, uint32_t startBlock, uint32_t blockSize, uint32_t blockCount); + +/*! + * @brief Write data from specific MMC card + * + * @param card Card descriptor. + * @param buffer Buffer to hold the data to write. + * @param startBlock Start block to write. + * @param blockSize Block size. + * @param blockCount Block count to write. + * @retval kStatus_SDMMC_CardNotSupport Card doesn't support. + * @retval kStatus_SDMMC_SetBlockCountFailed Set block count failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_StopTransmissionFailed Stop transmission failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t MMC_Write( + mmc_card_t *card, const uint8_t *buffer, uint32_t startBlock, uint32_t blockSize, uint32_t blockCount); + +/*! + * @brief card transfer function wrapper + * This function is used to do tuning before transfer if the cmd won't casue re-tuning + * request, then you can call host transfer function directly + * @param card Card descriptor. + * @param content Transfer content. + * @param retry Retry times. + * @retval kStatus_SDMMC_TransferFailed transfer fail + * @retval kStatus_SDMMC_TuningFail tuning fail + * @retval kStatus_Success transfer success + */ +static status_t MMC_Transfer(mmc_card_t *card, sdmmchost_transfer_t *content, uint32_t retry); + +/*! + * @brief card validate operation voltage + * This function is used to validate the operation voltage bettwen host and card + * + * @param card Card descriptor. + * @param opcode Retry times. + * @retval kStatus_Fail the operation voltage condition doesn't match between card and host + * @retval kStatus_Success voltage validate successfully + */ +static status_t MMC_ValidateOperationVoltage(mmc_card_t *card, uint32_t *opcode); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/* Frequency unit defined in TRANSFER SPEED field in CSD */ +static const uint32_t g_transerSpeedFrequencyUnit[] = {100000U, 1000000U, 10000000U, 100000000U}; +/* The multiplying value defined in TRANSFER SPEED field in CSD */ +static const uint32_t g_transerSpeedMultiplierFactor[] = {0U, 10U, 12U, 13U, 15U, 20U, 26U, 30U, + 35U, 40U, 45U, 52U, 55U, 60U, 70U, 80U}; + +/******************************************************************************* + * Code + ******************************************************************************/ +static inline status_t MMC_SelectCard(mmc_card_t *card, bool isSelected) +{ + assert(card != NULL); + + return SDMMC_SelectCard(card->host, card->relativeAddress, isSelected); +} + +static inline status_t MMC_SetBlockCount(mmc_card_t *card, uint32_t blockCount) +{ + assert(card != NULL); + + return SDMMC_SetBlockCount(card->host, blockCount); +} + +static inline status_t MMC_GoIdle(mmc_card_t *card) +{ + assert(card != NULL); + + return SDMMC_GoIdle(card->host); +} + +static inline status_t MMC_SetBlockSize(mmc_card_t *card, uint32_t blockSize) +{ + assert(card != NULL); + + return SDMMC_SetBlockSize(card->host, blockSize); +} + +#if SDMMCHOST_SUPPORT_HS200 || SDMMCHOST_SUPPORT_HS400 +static status_t MMC_ExecuteTuning(mmc_card_t *card) +{ + assert(card != NULL); + + uint32_t blockSize = 0U; + + if (card->busWidth == kMMC_DataBusWidth4bit) + { + blockSize = 64U; + } + else if (card->busWidth == kMMC_DataBusWidth8bit) + { + blockSize = 128U; + } + else + { + /* do not need tuning in this situation */ + return kStatus_Success; + } + + return SDMMCHOST_ExecuteTuning(card->host, (uint32_t)kMMC_SendTuningBlock, + (uint32_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer), + blockSize); +} +#endif + +static status_t MMC_Transfer(mmc_card_t *card, sdmmchost_transfer_t *content, uint32_t retry) +{ + assert(content != NULL); + status_t error; +#if SDMMCHOST_SUPPORT_HS200 + uint32_t retuningCount = 3U; +#endif + + do + { + error = SDMMCHOST_TransferFunction(card->host, content); + + if (error == kStatus_Success) + { + break; + } + + if (((retry == 0U) && (content->data != NULL)) +#if SDMMCHOST_SUPPORT_HS200 + || (error == kStatus_SDMMC_ReTuningRequest) +#endif + ) + { + /* abort previous transfer firstly */ + (void)MMC_StopTransmission(card); + +#if SDMMCHOST_SUPPORT_HS200 + if (card->busTiming == kMMC_HighSpeed200Timing) + { + if (--retuningCount == 0U) + { + break; + } + /* perform retuning */ + if (MMC_ExecuteTuning(card) != kStatus_Success) + { + error = kStatus_SDMMC_TuningFail; + SDMMC_LOG("\r\nError: retuning failed."); + break; + } + else + { + SDMMC_LOG("\r\nlog: retuning successfully."); + continue; + } + } +#endif + } + + if (retry != 0U) + { + retry--; + } + else + { + break; + } + + } while (true); + + return error; +} + +static status_t MMC_SendStatus(mmc_card_t *card, uint32_t *status) +{ + assert(card != NULL); + status_t error = kStatus_Success; + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDMMC_SendStatus; + command.argument = card->relativeAddress << 16U; + command.responseType = kCARD_ResponseTypeR1; + + content.command = &command; + content.data = NULL; + + error = MMC_Transfer(card, &content, 2U); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + *status = command.response[0U]; + + return kStatus_Success; +} + +static status_t MMC_WaitWriteComplete(mmc_card_t *card) +{ + assert(card != NULL); + + uint32_t status = 0U; + uint32_t retry = MMC_CMD13_RETRY_TIMES; + + do + { + if (kStatus_Success != MMC_SendStatus(card, &status)) + { + return kStatus_SDMMC_TransferFailed; + } + + /* check the response error */ + if (0U != (status & (SDMMC_R1_ALL_ERROR_FLAG | SDMMC_MASK(kSDMMC_R1SwitchErrorFlag)))) + { + return kStatus_SDMMC_WaitWriteCompleteFailed; + } + + if ((0U != (status & SDMMC_MASK(kSDMMC_R1ReadyForDataFlag))) && + (SDMMC_R1_CURRENT_STATE(status) != (uint32_t)kSDMMC_R1StateProgram)) + { + return kStatus_Success; + } + + retry--; + + } while (retry != 0U); + + SDMMC_LOG("\r\nError: CMD13 retry timeout."); + + return kStatus_SDMMC_WaitWriteCompleteFailed; +} + +static status_t MMC_PollingCardStatusBusy(mmc_card_t *card, bool sendStatusOnly, uint32_t timeout) +{ + assert(card != NULL); + + uint32_t statusTimeout = timeout; + bool dat0Busy = false; + + /* Wait for the card write process complete because of that card read process and write process use one buffer. */ + if (kStatus_Success != MMC_WaitWriteComplete(card)) + { + return kStatus_SDMMC_WaitWriteCompleteFailed; + } + + if (!sendStatusOnly) + { + do + { + dat0Busy = SDMMCHOST_IsCardBusy(card->host); + if (dat0Busy) + { + if (statusTimeout == 0U) + { + return kStatus_SDMMC_PollingCardIdleFailed; + } + else + { + SDMMC_OSADelay(1U); + statusTimeout--; + } + } + } while (dat0Busy); + } + + return kStatus_Success; +} + +static status_t MMC_StopTransmission(mmc_card_t *card) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDMMC_StopTransmission; + command.argument = 0U; + command.type = kCARD_CommandTypeAbort; + command.responseType = kCARD_ResponseTypeR1b; + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG; + + content.command = &command; + content.data = NULL; + if (kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +static status_t MMC_SendOperationCondition(mmc_card_t *card, uint32_t arg) +{ + assert(card != NULL); + + sdmmchost_cmd_t command = {0}; + sdmmchost_transfer_t content = {0}; + status_t error; + uint32_t i = MMC_CMD1_RETRY_TIMES; + + /* Send CMD1 with the intended voltage range in the argument(either 0x00FF8000 or 0x00000080) */ + command.index = (uint32_t)kMMC_SendOperationCondition; + command.argument = arg; + command.responseType = kCARD_ResponseTypeR3; + + content.command = &command; + content.data = NULL; + do + { + error = SDMMCHOST_TransferFunction(card->host, &content); + + if (error == kStatus_Success) + { + /* record OCR register */ + card->ocr = command.response[0U]; + + if ((arg == 0U) && (command.response[0U] != 0U)) + { + error = kStatus_Success; + } + /* Repeat CMD1 until the busy bit is cleared. */ + else if (0U == (command.response[0U] & MMC_OCR_BUSY_MASK)) + { + error = kStatus_Timeout; + } + else + { + error = kStatus_Success; + if (((card->ocr & MMC_OCR_ACCESS_MODE_MASK) >> MMC_OCR_ACCESS_MODE_SHIFT) == + (uint32_t)kMMC_AccessModeSector) + { + card->flags |= (uint32_t)kMMC_SupportHighCapacityFlag; + } + } + } + + SDMMC_OSADelay(10U); + + } while ((0U != i--) && (error != kStatus_Success)); + + return error; +} + +static status_t MMC_SetRelativeAddress(mmc_card_t *card) +{ + assert(card != NULL); + + sdmmchost_cmd_t command = {0}; + sdmmchost_transfer_t content = {0}; + + /* Send CMD3 with a chosen relative address, with value greater than 1 */ + command.index = (uint32_t)kMMC_SetRelativeAddress; + command.argument = (MMC_DEFAULT_RELATIVE_ADDRESS << 16U); + command.responseType = kCARD_ResponseTypeR1; + + content.command = &command; + content.data = NULL; + if ((kStatus_Success == SDMMCHOST_TransferFunction(card->host, &content)) || + (0U == ((command.response[0U]) & SDMMC_R1_ALL_ERROR_FLAG))) + { + card->relativeAddress = MMC_DEFAULT_RELATIVE_ADDRESS; + return kStatus_Success; + } + + return kStatus_SDMMC_TransferFailed; +} + +static void MMC_DecodeCsd(mmc_card_t *card, uint32_t *rawCsd) +{ + assert(card != NULL); + assert(rawCsd != NULL); + + mmc_csd_t *csd; + uint32_t multiplier; + + csd = &(card->csd); + csd->csdStructureVersion = (uint8_t)((rawCsd[3U] & 0xC0000000U) >> 30U); + csd->systemSpecificationVersion = (uint8_t)((rawCsd[3U] & 0x3C000000U) >> 26U); + csd->dataReadAccessTime1 = (uint8_t)((rawCsd[3U] & 0xFF0000U) >> 16U); + csd->dataReadAccessTime2 = (uint8_t)((rawCsd[3U] & 0xFF00U) >> 8U); + csd->transferSpeed = (uint8_t)(rawCsd[3U] & 0xFFU); + csd->cardCommandClass = (uint16_t)((rawCsd[2U] & 0xFFF00000U) >> 20U); + /* Max block length read/write one time */ + csd->readBlockLength = (uint8_t)((rawCsd[2U] & 0xF0000U) >> 16U); + if ((rawCsd[2U] & 0x8000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_CsdReadBlockPartialFlag; + } + if ((rawCsd[2U] & 0x4000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_CsdWriteBlockMisalignFlag; + } + if ((rawCsd[2U] & 0x2000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_CsdReadBlockMisalignFlag; + } + if ((rawCsd[2U] & 0x1000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_CsdDsrImplementedFlag; + } + csd->deviceSize = (uint16_t)(((rawCsd[2U] & 0x3FFU) << 2U) + ((rawCsd[1U] & 0xC0000000U) >> 30U)); + csd->readCurrentVddMin = (uint8_t)((rawCsd[1U] & 0x38000000U) >> 27U); + csd->readCurrentVddMax = (uint8_t)((rawCsd[1U] & 0x07000000U) >> 24U); + csd->writeCurrentVddMin = (uint8_t)((rawCsd[1U] & 0x00E00000U) >> 21U); + csd->writeCurrentVddMax = (uint8_t)((rawCsd[1U] & 0x001C0000U) >> 18U); + csd->deviceSizeMultiplier = (uint8_t)((rawCsd[1U] & 0x00038000U) >> 15U); + csd->eraseGroupSize = (uint8_t)((rawCsd[1U] & 0x00007C00U) >> 10U); + csd->eraseGroupSizeMultiplier = (uint8_t)((rawCsd[1U] & 0x000003E0U) >> 5U); + csd->writeProtectGroupSize = (uint8_t)(rawCsd[1U] & 0x0000001FU); + if ((rawCsd[0U] & 0x80000000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_CsdWriteProtectGroupEnabledFlag; + } + csd->defaultEcc = (uint8_t)((rawCsd[0U] & 0x60000000U) >> 29U); + csd->writeSpeedFactor = (uint8_t)((rawCsd[0U] & 0x1C000000U) >> 26U); + csd->maxWriteBlockLength = (uint8_t)((rawCsd[0U] & 0x03C00000U) >> 22U); + if ((rawCsd[0U] & 0x00200000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_CsdWriteBlockPartialFlag; + } + if ((rawCsd[0U] & 0x00010000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_ContentProtectApplicationFlag; + } + if ((rawCsd[0U] & 0x00008000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_CsdFileFormatGroupFlag; + } + if ((rawCsd[0U] & 0x00004000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_CsdCopyFlag; + } + if ((rawCsd[0U] & 0x00002000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_CsdPermanentWriteProtectFlag; + } + if ((rawCsd[0U] & 0x00001000U) != 0U) + { + csd->flags |= (uint16_t)kMMC_CsdTemporaryWriteProtectFlag; + } + csd->fileFormat = (uint8_t)((rawCsd[0U] & 0x00000C00U) >> 10U); + csd->eccCode = (uint8_t)((rawCsd[0U] & 0x00000300U) >> 8U); + + /* Calculate the device total block count. */ + /* For the card capacity of witch higher than 2GB, the maximum possible value should be set to this register + is 0xFFF. */ + if (card->csd.deviceSize != 0xFFFU) + { + multiplier = (2UL << (card->csd.deviceSizeMultiplier + 2U - 1U)); + card->userPartitionBlocks = (((card->csd.deviceSize + 1UL) * multiplier) / FSL_SDMMC_DEFAULT_BLOCK_SIZE); + } + + card->blockSize = FSL_SDMMC_DEFAULT_BLOCK_SIZE; +} + +static void MMC_SetMaxFrequency(mmc_card_t *card) +{ + assert(card != NULL); + + uint32_t frequencyUnit; + uint32_t multiplierFactor; + uint32_t maxBusClock_Hz; + + /* g_fsdhcCommandUnitInTranSpeed and g_transerSpeedMultiplierFactor are used to calculate the max speed in normal + mode not high speed mode. + For cards supporting version 4.0, 4.1, and 4.2 of the specification, the value shall be 20MHz(0x2A). + For cards supporting version 4.3, the value shall be 26 MHz (0x32H). In High speed mode, the max + frequency is decided by CARD_TYPE in Extended CSD. */ + frequencyUnit = g_transerSpeedFrequencyUnit[READ_MMC_TRANSFER_SPEED_FREQUENCY_UNIT(card->csd)]; + multiplierFactor = g_transerSpeedMultiplierFactor[READ_MMC_TRANSFER_SPEED_MULTIPLIER(card->csd)]; + maxBusClock_Hz = (frequencyUnit * multiplierFactor) / DIVIDER_IN_TRANSFER_SPEED; + card->busClock_Hz = SDMMCHOST_SetCardClock(card->host, maxBusClock_Hz); +} + +static status_t MMC_SetMaxEraseUnitSize(mmc_card_t *card) +{ + assert(card != NULL); + + uint32_t erase_group_size; + uint32_t erase_group_multiplier; + mmc_extended_csd_config_t extendedCsdconfig; + + /* Legacy mmc card , do not support the command */ + if ((card->csd.systemSpecificationVersion == (uint32_t)kMMC_SpecificationVersion3) && + (card->csd.csdStructureVersion == (uint32_t)kMMC_CsdStrucureVersion12)) + { + return kStatus_Success; + } + + if (((0U == (card->flags & (uint32_t)kMMC_SupportHighCapacityFlag)) || + (card->extendedCsd.highCapacityEraseUnitSize == 0U)) || + (card->extendedCsd.highCapacityEraseTimeout == 0U)) + { + erase_group_size = card->csd.eraseGroupSize; + erase_group_multiplier = card->csd.eraseGroupSizeMultiplier; + card->eraseGroupBlocks = ((erase_group_size + 1U) * (erase_group_multiplier + 1U)); + } + else + { + /* Erase Unit Size = 512Kbyte * HC_ERASE_GRP_SIZE. Block size is 512 bytes. */ + card->eraseGroupBlocks = (card->extendedCsd.highCapacityEraseUnitSize * 1024UL); + /* Enable high capacity erase unit size. */ + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeSetBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexEraseGroupDefinition; + extendedCsdconfig.ByteValue = 0x01U; /* The high capacity erase unit size enable bit is bit 0 */ + extendedCsdconfig.commandSet = kMMC_CommandSetStandard; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, true)) + { + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + } + + return kStatus_Success; +} + +static status_t MMC_SetExtendedCsdConfig(mmc_card_t *card, const mmc_extended_csd_config_t *config, bool sendStatusOnly) +{ + assert(card != NULL); + assert(config != NULL); + + status_t error = kStatus_Success; + uint32_t parameter = 0U; + sdmmchost_cmd_t command = {0}; + sdmmchost_transfer_t content = {0}; + + parameter |= ((uint32_t)(config->commandSet) << MMC_SWITCH_COMMAND_SET_SHIFT); + parameter |= ((uint32_t)(config->ByteValue) << MMC_SWITCH_VALUE_SHIFT); + parameter |= ((uint32_t)(config->ByteIndex) << MMC_SWITCH_BYTE_INDEX_SHIFT); + parameter |= ((uint32_t)(config->accessMode) << MMC_SWITCH_ACCESS_MODE_SHIFT); + + command.index = (uint32_t)kMMC_Switch; + command.argument = parameter; + command.responseType = kCARD_ResponseTypeR1b; /* Send switch command to set the pointed byte in Extended CSD. */ + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG | SDMMC_MASK(kSDMMC_R1SwitchErrorFlag); + + content.command = &command; + content.data = NULL; + error = MMC_Transfer(card, &content, 2U); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + /* Wait for the card write process complete because of that card read process and write process use one buffer. */ + if (kStatus_Success != MMC_PollingCardStatusBusy(card, sendStatusOnly, card->extendedCsd.genericCMD6Timeout)) + { + return kStatus_SDMMC_PollingCardIdleFailed; + } + + return kStatus_Success; +} + +static void MMC_DecodeExtendedCsd(mmc_card_t *card, uint32_t *rawExtendedCsd) +{ + assert(card != NULL); + assert(rawExtendedCsd != NULL); + + uint8_t *buffer = (uint8_t *)rawExtendedCsd; + mmc_extended_csd_t *extendedCsd = &(card->extendedCsd); + + /* Extended CSD is transferred as a data block from least byte indexed 0. */ + extendedCsd->bootPartitionWP = buffer[173U]; + extendedCsd->bootWPStatus = buffer[174U]; + extendedCsd->highDensityEraseGroupDefinition = buffer[175U]; + extendedCsd->bootDataBusConditions = buffer[177U]; + extendedCsd->bootConfigProtect = buffer[178U]; + extendedCsd->partitionConfig = buffer[179U]; + extendedCsd->eraseMemoryContent = buffer[181U]; + extendedCsd->dataBusWidth = buffer[183U]; + extendedCsd->highSpeedTiming = buffer[185U]; + extendedCsd->powerClass = buffer[187U]; + extendedCsd->commandSetRevision = buffer[189U]; + extendedCsd->commandSet = buffer[191U]; + extendedCsd->extendecCsdVersion = buffer[192U]; + extendedCsd->csdStructureVersion = buffer[194U]; + extendedCsd->partitionAttribute = buffer[156U]; + extendedCsd->extPartitionSupport = buffer[494U]; + extendedCsd->cardType = buffer[196U]; + /* This field define the type of the card. The only currently valid values for this field are 0x01 and 0x03. */ + card->flags |= extendedCsd->cardType; + + extendedCsd->ioDriverStrength = buffer[197U]; + + extendedCsd->powerClass52MHz195V = buffer[200U]; + extendedCsd->powerClass26MHz195V = buffer[201U]; + extendedCsd->powerClass52MHz360V = buffer[202U]; + extendedCsd->powerClass26MHz360V = buffer[203U]; + extendedCsd->powerClass200MHZVCCQ130VVCC360V = buffer[236U]; + extendedCsd->powerClass200MHZVCCQ195VVCC360V = buffer[237U]; + extendedCsd->powerClass52MHZDDR195V = buffer[238U]; + extendedCsd->powerClass52MHZDDR360V = buffer[239U]; + extendedCsd->powerClass200MHZDDR360V = buffer[253U]; + extendedCsd->minimumReadPerformance4Bit26MHz = buffer[205U]; + extendedCsd->minimumWritePerformance4Bit26MHz = buffer[206U]; + extendedCsd->minimumReadPerformance8Bit26MHz4Bit52MHz = buffer[207U]; + extendedCsd->minimumWritePerformance8Bit26MHz4Bit52MHz = buffer[208U]; + extendedCsd->minimumReadPerformance8Bit52MHz = buffer[209U]; + extendedCsd->minimumWritePerformance8Bit52MHz = buffer[210U]; + extendedCsd->minReadPerformance8bitAt52MHZDDR = buffer[234U]; + extendedCsd->minWritePerformance8bitAt52MHZDDR = buffer[235U]; + /* Get user partition size. */ + extendedCsd->sectorCount = ((((uint32_t)buffer[215U]) << 24U) + (((uint32_t)buffer[214U]) << 16U) + + (((uint32_t)buffer[213U]) << 8U) + (uint32_t)buffer[212U]); + if ((card->flags & (uint32_t)kMMC_SupportHighCapacityFlag) != 0U) + { + card->userPartitionBlocks = card->extendedCsd.sectorCount; + } + + extendedCsd->sleepAwakeTimeout = buffer[217U]; + extendedCsd->sleepCurrentVCCQ = buffer[219U]; + extendedCsd->sleepCurrentVCC = buffer[220U]; + extendedCsd->highCapacityWriteProtectGroupSize = buffer[221U]; + extendedCsd->reliableWriteSectorCount = buffer[222U]; + extendedCsd->highCapacityEraseTimeout = buffer[223U]; + extendedCsd->highCapacityEraseUnitSize = buffer[224U]; + extendedCsd->accessSize = buffer[225U]; + + /* Get boot partition size: 128KB * BOOT_SIZE_MULT*/ + card->bootPartitionBlocks = ((128U * 1024U * buffer[226U]) / FSL_SDMMC_DEFAULT_BLOCK_SIZE); + + /* support HS400 data strobe */ + if (buffer[184] == 1U) + { + card->flags |= (uint32_t)kMMC_SupportEnhanceHS400StrobeFlag; + } + + /* Check if card support boot mode. */ + if ((buffer[228U] & 0x1U) != 0U) + { + card->flags |= (uint32_t)kMMC_SupportAlternateBootFlag; + } + else if ((buffer[228U] & 0x2U) != 0U) + { + card->flags |= (uint32_t)kMMC_SupportDDRBootFlag; + } + else if ((buffer[228U] & 0x4U) != 0U) + { + card->flags |= (uint32_t)kMMC_SupportHighSpeedBootFlag; + } + else + { + /* empty with intentional */ + } + /* cache size unit 1kb */ + extendedCsd->cacheSize = (((uint32_t)buffer[252U]) << 24) | (((uint32_t)buffer[251U]) << 16) | + (((uint32_t)buffer[250U]) << 8) | (((uint32_t)buffer[249U])); + + extendedCsd->genericCMD6Timeout = buffer[248U] * 10UL; + extendedCsd->supportedCommandSet = buffer[504U]; +} + +static status_t MMC_SendExtendedCsd(mmc_card_t *card, uint8_t *targetAddr, uint32_t byteIndex) +{ + assert(card != NULL); + + sdmmchost_cmd_t command = {0}; + sdmmchost_transfer_t content = {0}; + sdmmchost_data_t data = {0}; + uint32_t i; + uint32_t *alignBuffer = (uint32_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + + /* Legacy mmc card , do not support the command */ + if ((card->csd.systemSpecificationVersion == (uint32_t)kMMC_SpecificationVersion3) && + (card->csd.csdStructureVersion == (uint32_t)kMMC_CsdStrucureVersion12)) + { + return kStatus_Success; + } + + (void)memset(alignBuffer, 0, MMC_EXTENDED_CSD_BYTES); + + command.index = (uint32_t)kMMC_SendExtendedCsd; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR1; + + data.blockCount = 1U; + data.blockSize = MMC_EXTENDED_CSD_BYTES; + data.rxData = alignBuffer; + + content.command = &command; + content.data = &data; + if ((kStatus_Success == SDMMCHOST_TransferFunction(card->host, &content)) && + (0U == (command.response[0U] & SDMMC_R1_ALL_ERROR_FLAG))) + { + /* The response is from bit 127:8 in R2, corresponding to command.response[3][31:0] to + command.response[0U][31:8] */ + if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeLittle) + { + /* Doesn't need to switch byte sequence when decode bytes as little endian sequence. */ + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeBig) + { + /* In big endian mode, the SD bus byte transferred first is the byte stored in highest position + in a word which cause 4 byte's sequence in a word is not consistent with their original sequence + from card. */ + for (i = 0U; i < MMC_EXTENDED_CSD_BYTES / 4U; i++) + { + alignBuffer[i] = SWAP_WORD_BYTE_SEQUENCE(alignBuffer[i]); + } + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeHalfWordBig) + { + for (i = 0U; i < MMC_EXTENDED_CSD_BYTES / 4U; i++) + { + alignBuffer[i] = SWAP_HALF_WROD_BYTE_SEQUENCE(alignBuffer[i]); + } + } + else + { + return kStatus_SDMMC_NotSupportYet; + } + + if (targetAddr != NULL) + { + *targetAddr = (uint8_t)alignBuffer[byteIndex]; + } + else + { + MMC_DecodeExtendedCsd(card, alignBuffer); + } + + return kStatus_Success; + } + + return kStatus_SDMMC_TransferFailed; +} + +static status_t MMC_SetPowerClass(mmc_card_t *card) +{ + assert(card != NULL); + + uint8_t mask = 0, shift = 0U; + uint8_t powerClass = 0; + mmc_extended_csd_config_t extendedCsdconfig; + + /* Legacy mmc card , do not support the command */ + if ((card->csd.systemSpecificationVersion == (uint32_t)kMMC_SpecificationVersion3) && + (card->csd.csdStructureVersion == (uint32_t)kMMC_CsdStrucureVersion12)) + { + return kStatus_Success; + } + + if ((card->busWidth == kMMC_DataBusWidth4bit) || (card->busWidth == kMMC_DataBusWidth4bitDDR)) + { + mask = MMC_POWER_CLASS_4BIT_MASK; /* The mask of 4 bit bus width's power class */ + shift = 0U; + } + else if ((card->busWidth == kMMC_DataBusWidth8bit) || (card->busWidth == kMMC_DataBusWidth8bitDDR)) + { + mask = MMC_POWER_CLASS_8BIT_MASK; /* The mask of 8 bit bus width's power class */ + shift = 4U; + } + else + { + return kStatus_Success; + } + + switch (card->hostVoltageWindowVCC) + { + case kMMC_VoltageWindows270to360: + + if (card->busTiming == kMMC_HighSpeed200Timing) + { + if (card->hostVoltageWindowVCCQ == kMMC_VoltageWindow170to195) + { + powerClass = ((card->extendedCsd.powerClass200MHZVCCQ195VVCC360V) & mask); + } + else if (card->hostVoltageWindowVCCQ == kMMC_VoltageWindow120) + { + powerClass = ((card->extendedCsd.powerClass200MHZVCCQ130VVCC360V) & mask); + } + else + { + /* intentional empty */ + } + } + else if (card->busTiming == kMMC_HighSpeed400Timing) + { + powerClass = ((card->extendedCsd.powerClass200MHZDDR360V) & mask); + } + else if ((card->busTiming == kMMC_HighSpeedTiming) && (card->busWidth > kMMC_DataBusWidth8bit)) + { + powerClass = ((card->extendedCsd.powerClass52MHZDDR360V) & mask); + } + else if ((card->busTiming == kMMC_HighSpeedTiming) && (card->busClock_Hz > MMC_CLOCK_26MHZ)) + { + powerClass = ((card->extendedCsd.powerClass52MHz360V) & mask); + } + else if (card->busTiming == kMMC_HighSpeedTiming) + { + powerClass = ((card->extendedCsd.powerClass26MHz360V) & mask); + } + else + { + /* intentional empty */ + } + + break; + + case kMMC_VoltageWindow170to195: + + if ((card->busTiming == kMMC_HighSpeedTiming) && (card->busClock_Hz <= MMC_CLOCK_26MHZ)) + { + powerClass = ((card->extendedCsd.powerClass26MHz195V) & mask); + } + else if ((card->busTiming == kMMC_HighSpeedTiming) && (card->busClock_Hz > MMC_CLOCK_26MHZ)) + { + powerClass = ((card->extendedCsd.powerClass52MHz195V) & mask); + } + else if ((card->busTiming == kMMC_HighSpeedTiming) && (card->busWidth > kMMC_DataBusWidth8bit)) + { + powerClass = ((card->extendedCsd.powerClass52MHZDDR195V) & mask); + } + else + { + /* intentional empty */ + } + + break; + default: + powerClass = 0; + break; + } + + /* due to 8bit power class position [7:4] */ + powerClass >>= shift; + + if (powerClass > 0U) + { + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeWriteBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexPowerClass; + extendedCsdconfig.ByteValue = powerClass; + extendedCsdconfig.commandSet = kMMC_CommandSetStandard; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, true)) + { + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + /* restore power class */ + card->extendedCsd.powerClass = powerClass; + } + + return kStatus_Success; +} + +static status_t MMC_SendTestPattern(mmc_card_t *card, uint32_t blockSize, uint32_t *pattern) +{ + assert(card != NULL); + assert(blockSize <= FSL_SDMMC_DEFAULT_BLOCK_SIZE); + assert(pattern != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + sdmmchost_data_t data = {0}; + + command.index = (uint32_t)kMMC_SendingBusTest; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR1; + + /* Ignore errors in bus test procedure to improve chances that the test will work. */ + data.enableIgnoreError = true; + data.blockCount = 1U; + data.blockSize = blockSize; + data.txData = pattern; + + content.command = &command; + content.data = &data; + if ((kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content)) || + ((command.response[0U] & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +static status_t MMC_ReceiveTestPattern(mmc_card_t *card, uint32_t blockSize, uint32_t *pattern) +{ + assert(card != NULL); + assert(blockSize <= FSL_SDMMC_DEFAULT_BLOCK_SIZE); + assert(pattern != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + sdmmchost_data_t data = {0}; + + command.index = (uint32_t)kMMC_BusTestRead; + command.responseType = kCARD_ResponseTypeR1; + + /* Ignore errors in bus test procedure to improve chances that the test will work. */ + data.enableIgnoreError = true; + data.blockCount = 1U; + data.blockSize = blockSize; + data.rxData = pattern; + + content.command = &command; + content.data = &data; + if ((kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content)) || + (((command.response[0U]) & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +static status_t MMC_TestDataBusWidth(mmc_card_t *card, mmc_data_bus_width_t width) +{ + assert(card != NULL); + + uint32_t blockSize = 0U; + uint32_t tempsendPattern = 0U; + uint32_t *tempPattern = (uint32_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + uint32_t xorMask = 0U; + uint32_t xorResult = 0U; + + /* For 8 data lines the data block would be (MSB to LSB): 0x0000_0000_0000_AA55, + For 4 data lines the data block would be (MSB to LSB): 0x0000_005A, + For only 1 data line the data block would be: 0x80 */ + switch (width) + { + case kMMC_DataBusWidth8bit: + case kMMC_DataBusWidth8bitDDR: + blockSize = 8U; + tempPattern[0U] = 0xAA55U; + xorMask = 0xFFFFU; + xorResult = 0xFFFFU; + break; + case kMMC_DataBusWidth4bit: + case kMMC_DataBusWidth4bitDDR: + blockSize = 4U; + tempPattern[0U] = 0x5AU; + xorMask = 0xFFU; + xorResult = 0xFFU; + break; + default: + blockSize = 4U; + tempPattern[0U] = 0x80U; + xorMask = 0xFFU; + xorResult = 0xC0U; + break; + } + + if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeLittle) + { + /* Doesn't need to switch byte sequence when decodes bytes as little endian sequence. */ + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeBig) + { + /* In big endian mode, the byte transferred first is the byte stored in highest byte position in a word + which will cause the card receive the inverted byte sequence in a word in bus test procedure. So the + sequence of 4 bytes stored in a word should be converted. */ + tempPattern[0] = SWAP_WORD_BYTE_SEQUENCE(tempPattern[0]); + xorMask = SWAP_WORD_BYTE_SEQUENCE(xorMask); + xorResult = SWAP_WORD_BYTE_SEQUENCE(xorResult); + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeHalfWordBig) + { + /* In half word big endian mode, the byte transferred first is the lower byte in the higher half word. + 0xAA55U should be converted to 0xAA550000U to set the 0x55 to be the first byte to transfer. */ + tempPattern[0] = SWAP_HALF_WROD_BYTE_SEQUENCE(tempPattern[0]); + xorMask = SWAP_HALF_WROD_BYTE_SEQUENCE(xorMask); + xorResult = SWAP_HALF_WROD_BYTE_SEQUENCE(xorResult); + tempPattern[0] = SWAP_WORD_BYTE_SEQUENCE(tempPattern[0]); + xorMask = SWAP_WORD_BYTE_SEQUENCE(xorMask); + xorResult = SWAP_WORD_BYTE_SEQUENCE(xorResult); + } + else + { + return kStatus_SDMMC_NotSupportYet; + } + + (void)MMC_SendTestPattern(card, blockSize, tempPattern); + /* restore the send pattern */ + tempsendPattern = tempPattern[0U]; + /* reset the global buffer */ + tempPattern[0U] = 0U; + + (void)MMC_ReceiveTestPattern(card, blockSize, tempPattern); + + /* XOR the send pattern and receive pattern */ + if (((tempPattern[0U] ^ tempsendPattern) & xorMask) != xorResult) + { + return kStatus_Fail; + } + + return kStatus_Success; +} + +static status_t MMC_SetDataBusWidth(mmc_card_t *card, mmc_data_bus_width_t width) +{ + assert(card != NULL); + + mmc_extended_csd_config_t extendedCsdconfig; + + /* Set data bus width */ + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeWriteBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexBusWidth; + extendedCsdconfig.ByteValue = (uint8_t)width; + extendedCsdconfig.commandSet = kMMC_CommandSetStandard; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, true)) + { + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + /* restore data bus width */ + card->extendedCsd.dataBusWidth = (uint8_t)width; + + return kStatus_Success; +} + +static status_t MMC_SetMaxDataBusWidth(mmc_card_t *card, mmc_high_speed_timing_t targetTiming) +{ + assert(card != NULL); + + status_t error = kStatus_Fail; + + switch (card->busWidth) + { + case kMMC_DataBusWidth1bit: +#if SDMMCHOST_SUPPORT_DDR_MODE || SDMMCHOST_SUPPORT_HS400 +#if SDMMCHOST_SUPPORT_8_BIT_WIDTH + case kMMC_DataBusWidth8bitDDR: + /* Test and set the data bus width for card. */ + if ((SDMMCHOST_INSTANCE_SUPPORT_8_BIT_WIDTH(card->host) != 0) && + (0U != (card->flags & ((uint32_t)kMMC_SupportHighSpeedDDR52MHZ180V300VFlag | + (uint32_t)kMMC_SupportHighSpeedDDR52MHZ120VFlag))) && + ((targetTiming == kMMC_HighSpeedTiming) || (targetTiming == kMMC_HighSpeed400Timing)) && + ((card->usrParam.capability & (uint32_t)kSDMMC_Support8BitWidth) != 0U)) + { + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith8Bit); + if (kStatus_Success == MMC_TestDataBusWidth(card, kMMC_DataBusWidth8bitDDR)) + { + if (kStatus_Success == MMC_SetDataBusWidth(card, kMMC_DataBusWidth8bitDDR)) + { + error = kStatus_Success; + card->busWidth = kMMC_DataBusWidth8bitDDR; + break; + } + } + + /* HS400 mode only support 8bit data bus */ + if (card->busTiming == kMMC_HighSpeed400Timing) + { + return kStatus_SDMMC_SetDataBusWidthFailed; + } + } + SUPPRESS_FALL_THROUGH_WARNING(); +#endif + case kMMC_DataBusWidth4bitDDR: + if ((0U != (card->flags & ((uint32_t)kMMC_SupportHighSpeedDDR52MHZ180V300VFlag | + (uint32_t)kMMC_SupportHighSpeedDDR52MHZ120VFlag))) && + ((targetTiming == kMMC_HighSpeedTiming) || (targetTiming == kMMC_HighSpeed400Timing))) + { + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith4Bit); + if (kStatus_Success == MMC_TestDataBusWidth(card, kMMC_DataBusWidth4bitDDR)) + { + if (kStatus_Success == MMC_SetDataBusWidth(card, kMMC_DataBusWidth4bitDDR)) + { + error = kStatus_Success; + card->busWidth = kMMC_DataBusWidth4bitDDR; + break; + } + } + } + SUPPRESS_FALL_THROUGH_WARNING(); +#endif + +#if SDMMCHOST_SUPPORT_8_BIT_WIDTH + case kMMC_DataBusWidth8bit: + if ((SDMMCHOST_INSTANCE_SUPPORT_8_BIT_WIDTH(card->host) != 0) && + ((targetTiming == kMMC_HighSpeedTiming) || (targetTiming == kMMC_HighSpeed200Timing)) && + ((card->usrParam.capability & (uint32_t)kSDMMC_Support8BitWidth) != 0U)) + { + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith8Bit); + if (kStatus_Success == MMC_TestDataBusWidth(card, kMMC_DataBusWidth8bit)) + { + if (kStatus_Success == MMC_SetDataBusWidth(card, kMMC_DataBusWidth8bit)) + { + error = kStatus_Success; + card->busWidth = kMMC_DataBusWidth8bit; + break; + } + } + } + SUPPRESS_FALL_THROUGH_WARNING(); +#endif + + case kMMC_DataBusWidth4bit: + if (((targetTiming == kMMC_HighSpeedTiming) || (targetTiming == kMMC_HighSpeed200Timing))) + { + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith4Bit); + if (kStatus_Success == MMC_TestDataBusWidth(card, kMMC_DataBusWidth4bit)) + { + if (kStatus_Success == MMC_SetDataBusWidth(card, kMMC_DataBusWidth4bit)) + { + error = kStatus_Success; + card->busWidth = kMMC_DataBusWidth4bit; + break; + } + } + /* HS200 mode only support 4bit/8bit data bus */ + if (targetTiming == kMMC_HighSpeed200Timing) + { + return kStatus_SDMMC_SetDataBusWidthFailed; + } + } + SUPPRESS_FALL_THROUGH_WARNING(); + + default: + assert(false); + break; + } + + if (error == kStatus_Fail) + { + /* Card's data bus width will be default 1 bit mode. */ + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith1Bit); + } + + return kStatus_Success; +} + +static status_t MMC_SwitchHSTiming(mmc_card_t *card, uint8_t timing, uint8_t driverStrength) +{ + assert(card != NULL); + + uint8_t hsTiming = 0; + + mmc_extended_csd_config_t extendedCsdconfig; + + /* check the target driver strength support or not */ + if (((card->extendedCsd.ioDriverStrength & (1U << driverStrength)) == 0U) && + (card->extendedCsd.extendecCsdVersion >= (uint8_t)kMMC_ExtendedCsdRevision17)) + { + return kStatus_SDMMC_NotSupportYet; + } + /* calucate the register value */ + hsTiming = (timing & 0xFU) | (uint8_t)(driverStrength << 4U); + + /* Switch to high speed timing. */ + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeWriteBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexHighSpeedTiming; + extendedCsdconfig.ByteValue = hsTiming; + extendedCsdconfig.commandSet = kMMC_CommandSetStandard; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, false)) + { + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + + card->extendedCsd.highSpeedTiming = hsTiming; + + return kStatus_Success; +} + +static status_t MMC_SwitchToHighSpeed(mmc_card_t *card) +{ + assert(card != NULL); + + uint32_t freq = 0U; + + if (kStatus_Success != MMC_SwitchHSTiming(card, (uint8_t)kMMC_HighSpeedTiming, kMMC_DriverStrength0)) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + + if ((card->flags & (uint32_t)kMMC_SupportHighSpeed52MHZFlag) != 0U) + { + freq = FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, MMC_CLOCK_52MHZ); + } + else if ((card->flags & (uint32_t)kMMC_SupportHighSpeed26MHZFlag) != 0U) + { + freq = FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, MMC_CLOCK_26MHZ); + } + else + { + /* Intentional empty */ + } + + card->busClock_Hz = SDMMCHOST_SetCardClock(card->host, freq); + /* config io speed and strength */ + if (card->usrParam.ioStrength != NULL) + { + card->usrParam.ioStrength(MMC_CLOCK_52MHZ); + } + /* Set card data width, it is nessesary to config the the data bus here, to meet emmc5.0 specification, + * when you are working in DDR mode , HS_TIMING must set before set bus width + */ + if (MMC_SetMaxDataBusWidth(card, kMMC_HighSpeedTiming) != kStatus_Success) + { + return kStatus_SDMMC_SetDataBusWidthFailed; + } + +#if SDMMCHOST_SUPPORT_DDR_MODE + if ((card->busWidth == kMMC_DataBusWidth4bitDDR) || (card->busWidth == kMMC_DataBusWidth8bitDDR)) + { + SDMMCHOST_EnableDDRMode(card->host, true, 0U); + } +#endif + + card->busTiming = kMMC_HighSpeedTiming; + + return kStatus_Success; +} + +#if SDMMCHOST_SUPPORT_HS200 +static status_t MMC_SwitchToHS200(mmc_card_t *card, uint32_t freq) +{ + assert(card != NULL); + + if ((card->hostVoltageWindowVCCQ != kMMC_VoltageWindow170to195) && + (card->hostVoltageWindowVCCQ != kMMC_VoltageWindow120)) + { + return kStatus_SDMMC_InvalidVoltage; + } + + /* select bus width before select bus timing for HS200 mode */ + if (MMC_SetMaxDataBusWidth(card, kMMC_HighSpeed200Timing) != kStatus_Success) + { + return kStatus_SDMMC_SetDataBusWidthFailed; + } + + /* switch to HS200 mode */ + if (kStatus_Success != MMC_SwitchHSTiming(card, (uint8_t)kMMC_HighSpeed200Timing, kMMC_DriverStrength0)) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + + card->busClock_Hz = SDMMCHOST_SetCardClock(card->host, freq); + /* config io speed and strength */ + if (card->usrParam.ioStrength != NULL) + { + card->usrParam.ioStrength(freq); + } + + /* excute tuning for HS200 */ + if (MMC_ExecuteTuning(card) != kStatus_Success) + { + return kStatus_SDMMC_TuningFail; + } + + card->busTiming = kMMC_HighSpeed200Timing; + + if (kStatus_Success != MMC_WaitWriteComplete(card)) + { + return kStatus_SDMMC_WaitWriteCompleteFailed; + } + + return kStatus_Success; +} +#endif + +#if SDMMCHOST_SUPPORT_HS400 +static status_t MMC_SwitchToHS400(mmc_card_t *card) +{ + assert(card != NULL); + + uint32_t status = 0U; + uint32_t hs400Freq = FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, MMC_CLOCK_HS400); + + if ((card->hostVoltageWindowVCCQ != kMMC_VoltageWindow170to195) && + (card->hostVoltageWindowVCCQ != kMMC_VoltageWindow120)) + { + return kStatus_SDMMC_InvalidVoltage; + } + + if (card->host->hostController.sourceClock_Hz < MMC_CLOCK_HS400) + { + hs400Freq = card->host->hostController.sourceClock_Hz; + } + + if ((card->host->hostController.sourceClock_Hz > MMC_CLOCK_HS400) && + (card->host->hostController.sourceClock_Hz % MMC_CLOCK_HS400 != 0U)) + { + hs400Freq = card->host->hostController.sourceClock_Hz / + (card->host->hostController.sourceClock_Hz / MMC_CLOCK_HS400 + 1); + } + + /* switch to HS200 perform tuning */ + if (kStatus_Success != MMC_SwitchToHS200(card, hs400Freq / 2U)) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + + /* check data bus width is 8 bit , otherwise return false*/ + if (card->busWidth != kMMC_DataBusWidth8bit) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + + /* + * For the issue found in stress test of repeat emmc initialization operation, after HS200 switch complete, the emmc + * status not correct for switching to high speed, normally the emmc should stay in TRAN state, but sometimes the + * emmc status is in DATA state which will cause switch to High speed failed. when such issue happen, software will + * try to use CMD12 to reset the emmc status to TRAN before switch to high speed for HS400. + */ + if (MMC_SendStatus(card, &status) != kStatus_Success) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + + if (SDMMC_R1_CURRENT_STATE(status) == kSDMMC_R1StateSendData) + { + SDMMC_LOG("status uncorrect for switching to High speed timing, try use CMD12 to get back to TRAN state\r\n"); + /* try to get back to transfer state before switch to High speed */ + MMC_StopTransmission(card); + } + + /*switch to high speed*/ + if (kStatus_Success != MMC_SwitchHSTiming(card, kMMC_HighSpeedTiming, kMMC_DriverStrength0)) + { + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + + /* switch to high speed first */ + card->busClock_Hz = SDMMCHOST_SetCardClock(card->host, MMC_CLOCK_52MHZ); + /* config io strength */ + if (card->usrParam.ioStrength != NULL) + { + card->usrParam.ioStrength(MMC_CLOCK_52MHZ); + } + + card->busTiming = kMMC_HighSpeed400Timing; + /* switch to 8 bit DDR data bus width */ + if (kStatus_Success != MMC_SetDataBusWidth(card, kMMC_DataBusWidth8bitDDR)) + { + return kStatus_SDMMC_SetDataBusWidthFailed; + } + /* switch to HS400 */ + if (kStatus_Success != MMC_SwitchHSTiming(card, kMMC_HighSpeed400Timing, kMMC_DriverStrength0)) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + /* config to target freq */ + card->busClock_Hz = SDMMCHOST_SetCardClock(card->host, hs400Freq / 2U); + /* config io speed and strength */ + if (card->usrParam.ioStrength != NULL) + { + card->usrParam.ioStrength(MMC_CLOCK_HS200); + } + /* enable HS400 mode */ + SDMMCHOST_EnableHS400Mode(card->host, true); + /* enable DDR mode */ + SDMMCHOST_EnableDDRMode(card->host, true, 0U); + /* config strobe DLL*/ + SDMMCHOST_EnableStrobeDll(card->host, true); + + return kStatus_Success; +} +#endif + +static status_t MMC_SelectBusTiming(mmc_card_t *card) +{ + assert(card != NULL); + + mmc_high_speed_timing_t targetTiming = card->busTiming; + + /* Legacy mmc card , do not support the command */ + if ((card->csd.systemSpecificationVersion == (uint8_t)kMMC_SpecificationVersion3) && + (card->csd.csdStructureVersion == (uint8_t)kMMC_CsdStrucureVersion12)) + { + return kStatus_Success; + } + + switch (targetTiming) + { + case kMMC_HighSpeedTimingNone: +#if SDMMCHOST_SUPPORT_HS400 + case kMMC_HighSpeed400Timing: + if ((SDMMCHOST_INSTANCE_SUPPORT_HS400(card->host) != 0) && + ((card->hostVoltageWindowVCCQ == kMMC_VoltageWindow170to195) || + (card->hostVoltageWindowVCCQ == kMMC_VoltageWindow120)) && + (card->flags & (kMMC_SupportHS400DDR200MHZ180VFlag | kMMC_SupportHS400DDR200MHZ120VFlag))) + { + /* switch to HS400 */ + if (kStatus_Success != MMC_SwitchToHS400(card)) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + break; + } + SUPPRESS_FALL_THROUGH_WARNING(); +#endif +#if SDMMCHOST_SUPPORT_HS200 + case kMMC_HighSpeed200Timing: + if ((SDMMCHOST_INSTANCE_SUPPORT_HS200(card->host) != 0) && + ((card->hostVoltageWindowVCCQ == kMMC_VoltageWindow170to195) || + (card->hostVoltageWindowVCCQ == kMMC_VoltageWindow120)) && + (0U != (card->flags & + ((uint32_t)kMMC_SupportHS200200MHZ180VFlag | (uint32_t)kMMC_SupportHS200200MHZ120VFlag)))) + { + if (kStatus_Success != + MMC_SwitchToHS200(card, FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, MMC_CLOCK_HS200))) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + break; + } + SUPPRESS_FALL_THROUGH_WARNING(); +#endif + case kMMC_HighSpeedTiming: + if (kStatus_Success != MMC_SwitchToHighSpeed(card)) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + break; + + default: + card->busTiming = kMMC_HighSpeedTimingNone; + break; + } + + return kStatus_Success; +} + +static void MMC_DecodeCid(mmc_card_t *card, uint32_t *rawCid) +{ + assert(card != NULL); + assert(rawCid != NULL); + + mmc_cid_t *cid; + + cid = &(card->cid); + cid->manufacturerID = (uint8_t)((rawCid[3U] & 0xFF000000U) >> 24U); + cid->applicationID = (uint16_t)((rawCid[3U] & 0xFFFF00U) >> 8U); + + cid->productName[0U] = (uint8_t)((rawCid[3U] & 0xFFU)); + cid->productName[1U] = (uint8_t)((rawCid[2U] & 0xFF000000U) >> 24U); + cid->productName[2U] = (uint8_t)((rawCid[2U] & 0xFF0000U) >> 16U); + cid->productName[3U] = (uint8_t)((rawCid[2U] & 0xFF00U) >> 8U); + cid->productName[4U] = (uint8_t)((rawCid[2U] & 0xFFU)); + + cid->productVersion = (uint8_t)((rawCid[1U] & 0xFF000000U) >> 24U); + + cid->productSerialNumber = (uint32_t)((rawCid[1U] & 0xFFFFFFU) << 8U); + cid->productSerialNumber |= (uint32_t)((rawCid[0U] & 0xFF000000U) >> 24U); + + cid->manufacturerData = (uint8_t)((rawCid[0U] & 0xFFF00U) >> 8U); +} + +static status_t MMC_AllSendCid(mmc_card_t *card) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDMMC_AllSendCid; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR2; + + content.command = &command; + content.data = NULL; + if (kStatus_Success == SDMMCHOST_TransferFunction(card->host, &content)) + { + (void)memcpy(card->internalBuffer, (uint8_t *)command.response, 16U); + MMC_DecodeCid(card, command.response); + + return kStatus_Success; + } + + return kStatus_SDMMC_TransferFailed; +} + +static status_t MMC_SendCsd(mmc_card_t *card) +{ + assert(card != NULL); + + sdmmchost_cmd_t command = {0}; + sdmmchost_transfer_t content = {0}; + + command.index = (uint32_t)kSDMMC_SendCsd; + command.argument = (card->relativeAddress << 16U); + command.responseType = kCARD_ResponseTypeR2; + + content.command = &command; + content.data = NULL; + if (kStatus_Success == SDMMCHOST_TransferFunction(card->host, &content)) + { + (void)memcpy(card->internalBuffer, (uint8_t *)command.response, 16U); + /* The response is from bit 127:8 in R2, corresponding to command.response[3][31:0] to + command.response[0U][31:8]. */ + MMC_DecodeCsd(card, (uint32_t *)(uint32_t)card->internalBuffer); + + return kStatus_Success; + } + + return kStatus_SDMMC_TransferFailed; +} + +static status_t MMC_CheckBlockRange(mmc_card_t *card, uint32_t startBlock, uint32_t blockCount) +{ + assert(card != NULL); + assert(blockCount != 0U); + + status_t error = kStatus_Success; + uint32_t partitionBlocks; + + switch (card->currentPartition) + { + case kMMC_AccessPartitionUserAera: + { + partitionBlocks = card->userPartitionBlocks; + break; + } + case kMMC_AccessPartitionBoot1: + case kMMC_AccessPartitionBoot2: + { + /* Boot partition 1 and partition 2 have the same partition size. */ + partitionBlocks = card->bootPartitionBlocks; + break; + } + default: + error = kStatus_InvalidArgument; + break; + } + /* Check if the block range accessed is within current partition's block boundary. */ + if ((error == kStatus_Success) && ((startBlock + blockCount) > partitionBlocks)) + { + error = kStatus_InvalidArgument; + } + + return error; +} + +static status_t MMC_CheckEraseGroupRange(mmc_card_t *card, uint32_t startGroup, uint32_t endGroup) +{ + assert(card != NULL); + + status_t error = kStatus_Success; + uint32_t partitionBlocks; + uint32_t eraseGroupBoundary; + + switch (card->currentPartition) + { + case kMMC_AccessPartitionUserAera: + { + partitionBlocks = card->userPartitionBlocks; + break; + } + case kMMC_AccessPartitionBoot1: + case kMMC_AccessPartitionBoot2: + { + /* Boot partition 1 and partition 2 have the same partition size. */ + partitionBlocks = card->bootPartitionBlocks; + break; + } + default: + error = kStatus_InvalidArgument; + break; + } + + if (error == kStatus_Success) + { + /* Check if current partition's total block count is integer multiples of the erase group size. */ + if ((partitionBlocks % card->eraseGroupBlocks) == 0U) + { + eraseGroupBoundary = (partitionBlocks / card->eraseGroupBlocks); + } + else + { + /* Card will ignore the unavailable blocks within the last erase group automatically. */ + eraseGroupBoundary = (partitionBlocks / card->eraseGroupBlocks + 1U); + } + + /* Check if the group range accessed is within current partition's erase group boundary. */ + if ((startGroup > eraseGroupBoundary) || (endGroup > eraseGroupBoundary)) + { + error = kStatus_InvalidArgument; + } + } + + return error; +} + +static status_t MMC_Read( + mmc_card_t *card, uint8_t *buffer, uint32_t startBlock, uint32_t blockSize, uint32_t blockCount) +{ + assert(card != NULL); + assert(buffer != NULL); + assert(blockCount != 0U); + assert(blockSize != 0U); + assert(blockSize == FSL_SDMMC_DEFAULT_BLOCK_SIZE); + + sdmmchost_cmd_t command = {0}; + sdmmchost_data_t data = {0}; + sdmmchost_transfer_t content = {0}; + status_t error; + + if ((((card->flags & (uint32_t)kMMC_SupportHighCapacityFlag) != 0U) && (blockSize != 512U)) || + (blockSize > card->blockSize) || (blockSize > SDMMCHOST_SUPPORT_MAX_BLOCK_LENGTH) || (0U != (blockSize % 4U))) + { + return kStatus_SDMMC_CardNotSupport; + } + + if (kStatus_Success != MMC_PollingCardStatusBusy(card, true, MMC_CARD_ACCESS_WAIT_IDLE_TIMEOUT)) + { + return kStatus_SDMMC_PollingCardIdleFailed; + } + + data.blockSize = blockSize; + data.blockCount = blockCount; + data.rxData = (uint32_t *)(uint32_t)buffer; + data.enableAutoCommand12 = true; + command.index = (uint32_t)kSDMMC_ReadMultipleBlock; + if (data.blockCount == 1U) + { + command.index = (uint32_t)kSDMMC_ReadSingleBlock; + } + else + { + if ((!(data.enableAutoCommand12)) && (card->enablePreDefinedBlockCount)) + { + /* If enabled the pre-define count read/write feature of the card, need to set block count firstly. */ + if (kStatus_Success != MMC_SetBlockCount(card, blockCount)) + { + return kStatus_SDMMC_SetBlockCountFailed; + } + } + } + command.argument = startBlock; + if (0U == (card->flags & (uint32_t)kMMC_SupportHighCapacityFlag)) + { + command.argument *= data.blockSize; + } + command.responseType = kCARD_ResponseTypeR1; + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG; + + content.command = &command; + content.data = &data; + + /* should check tuning error during every transfer */ + error = MMC_Transfer(card, &content, 3U); + if (kStatus_Success != error) + { + return error; + } + + /* When host's AUTO_COMMAND12 feature isn't enabled and PRE_DEFINED_COUNT command isn't enabled in multiple + blocks transmission, sends STOP_TRANSMISSION command. */ + if ((blockCount > 1U) && (!(data.enableAutoCommand12)) && (!card->enablePreDefinedBlockCount)) + { + if (kStatus_Success != MMC_StopTransmission(card)) + { + return kStatus_SDMMC_StopTransmissionFailed; + } + } + + return kStatus_Success; +} + +static status_t MMC_Write( + mmc_card_t *card, const uint8_t *buffer, uint32_t startBlock, uint32_t blockSize, uint32_t blockCount) +{ + assert(card != NULL); + assert(buffer != NULL); + assert(blockCount != 0U); + assert(blockSize != 0U); + assert(blockSize == FSL_SDMMC_DEFAULT_BLOCK_SIZE); + + sdmmchost_cmd_t command = {0}; + sdmmchost_data_t data = {0}; + sdmmchost_transfer_t content = {0}; + status_t error; + + /* Check address range */ + if ((((card->flags & (uint32_t)kMMC_SupportHighCapacityFlag) != 0U) && (blockSize != 512U)) || + (blockSize > card->blockSize) || (blockSize > SDMMCHOST_SUPPORT_MAX_BLOCK_LENGTH) || (0U != (blockSize % 4U))) + { + return kStatus_SDMMC_CardNotSupport; + } + + /* Wait for the card write process complete */ + if (kStatus_Success != MMC_PollingCardStatusBusy(card, false, MMC_CARD_ACCESS_WAIT_IDLE_TIMEOUT)) + { + return kStatus_SDMMC_PollingCardIdleFailed; + } + + data.blockSize = blockSize; + data.blockCount = blockCount; + data.txData = (const uint32_t *)(uint32_t)buffer; + data.enableAutoCommand12 = true; + + command.index = (uint32_t)kSDMMC_WriteMultipleBlock; + if (data.blockCount == 1U) + { + command.index = (uint32_t)kSDMMC_WriteSingleBlock; + } + else + { + if ((!(data.enableAutoCommand12)) && (card->enablePreDefinedBlockCount)) + { + /* If enabled the pre-define count read/write featue of the card, need to set block count firstly */ + if (kStatus_Success != MMC_SetBlockCount(card, blockCount)) + { + return kStatus_SDMMC_SetBlockCountFailed; + } + } + } + command.argument = startBlock; + if (0U == (card->flags & (uint32_t)kMMC_SupportHighCapacityFlag)) + { + command.argument *= blockSize; + } + command.responseType = kCARD_ResponseTypeR1; + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG; + + content.command = &command; + content.data = &data; + + /* should check tuning error during every transfer */ + error = MMC_Transfer(card, &content, 3U); + if (kStatus_Success != error) + { + return error; + } + + /* When host's AUTO_COMMAND12 feature isn't enabled and PRE_DEFINED_COUNT command isn't enabled in multiple + blocks transmission, sends STOP_TRANSMISSION command. */ + if ((blockCount > 1U) && (!(data.enableAutoCommand12)) && (!card->enablePreDefinedBlockCount)) + { + if (kStatus_Success != MMC_StopTransmission(card)) + { + return kStatus_SDMMC_StopTransmissionFailed; + } + } + + return kStatus_Success; +} + +static status_t MMC_ValidateOperationVoltage(mmc_card_t *card, uint32_t *opcode) +{ + status_t status = kStatus_Fail; + + if (card->hostVoltageWindowVCC == kMMC_VoltageWindow170to195) + { + if ((card->ocr & MMC_OCR_V170TO195_MASK) != 0U) + { + *opcode |= MMC_OCR_V170TO195_MASK; + status = kStatus_Success; + } + } + else if (card->hostVoltageWindowVCC == kMMC_VoltageWindows270to360) + { + if ((card->ocr & MMC_OCR_V270TO360_MASK) != 0U) + { + *opcode |= MMC_OCR_V270TO360_MASK; + status = kStatus_Success; + } + } + else + { + /* Intentional empty */ + } + + return status; +} + +status_t MMC_CardInit(mmc_card_t *card) +{ + assert(card != NULL); + assert((card->hostVoltageWindowVCC != kMMC_VoltageWindowNone) && + (card->hostVoltageWindowVCC != kMMC_VoltageWindow120)); + assert(card->hostVoltageWindowVCCQ != kMMC_VoltageWindowNone); + + uint32_t opcode = 0U; + status_t error = kStatus_Success; + + if (!card->isHostReady) + { + return kStatus_SDMMC_HostNotReady; + } + /* set DATA bus width */ + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith1Bit); + /* Set clock to 400KHz. */ + card->busClock_Hz = SDMMCHOST_SetCardClock(card->host, SDMMC_CLOCK_400KHZ); + + error = MMC_GoIdle(card); + /* Send CMD0 to reset the bus */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_GoIdleFailed; + } + + /* Hand-shaking with card to validata the voltage range Host first sending its expected + information.*/ + error = MMC_SendOperationCondition(card, 0U); + if (kStatus_Success != error) + { + return kStatus_SDMMC_HandShakeOperationConditionFailed; + } + + error = MMC_ValidateOperationVoltage(card, &opcode); + if (kStatus_Success != error) + { + return kStatus_SDMMC_InvalidVoltage; + } + + /* Get host's access mode. */ + opcode |= (SDMMCHOST_SUPPORT_MAX_BLOCK_LENGTH >= FSL_SDMMC_DEFAULT_BLOCK_SIZE ? + (uint32_t)kMMC_AccessModeSector << MMC_OCR_ACCESS_MODE_SHIFT : + (uint32_t)kMMC_AccessModeByte << MMC_OCR_ACCESS_MODE_SHIFT); + + error = MMC_SendOperationCondition(card, opcode); + if (kStatus_Success != error) + { + return kStatus_SDMMC_HandShakeOperationConditionFailed; + } + + /* Get card CID */ + error = MMC_AllSendCid(card); + if (kStatus_Success != error) + { + return kStatus_SDMMC_AllSendCidFailed; + } + + error = MMC_SetRelativeAddress(card); + /* Set the card relative address */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_SetRelativeAddressFailed; + } + + error = MMC_SendCsd(card); + /* Get the CSD register content */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_SendCsdFailed; + } + + /* Set to maximum speed in normal mode. */ + MMC_SetMaxFrequency(card); + + /* Send CMD7 with the card's relative address to place the card in transfer state. Puts current selected card in + transfer state. */ + error = MMC_SelectCard(card, true); + if (kStatus_Success != error) + { + return kStatus_SDMMC_SelectCardFailed; + } + + /* Get Extended CSD register content. */ + error = MMC_SendExtendedCsd(card, NULL, 0U); + if (kStatus_Success != error) + { + return kStatus_SDMMC_SendExtendedCsdFailed; + } + + error = MMC_SetMaxEraseUnitSize(card); + /* Set to max erase unit size */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_EnableHighCapacityEraseFailed; + } + + error = MMC_SetBlockSize(card, FSL_SDMMC_DEFAULT_BLOCK_SIZE); + /* set block size */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_SetCardBlockSizeFailed; + } + + error = MMC_SelectBusTiming(card); + /* switch to host support speed mode, then switch MMC data bus width and select power class */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + + error = MMC_SetPowerClass(card); + /* switch power class */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_SetPowerClassFail; + } + + /* trying to enable the cache */ + (void)MMC_EnableCacheControl(card, true); + + /* Set card default to access non-boot partition */ + card->currentPartition = kMMC_AccessPartitionUserAera; + + return kStatus_Success; +} + +void MMC_CardDeinit(mmc_card_t *card) +{ + assert(card != NULL); + + (void)MMC_SelectCard(card, false); +} + +status_t MMC_HostInit(mmc_card_t *card) +{ + assert(card != NULL); + + if ((!card->isHostReady) && SDMMCHOST_Init(card->host) != kStatus_Success) + { + return kStatus_Fail; + } + + /* set the host status flag, after the card re-plug in, don't need init host again */ + card->isHostReady = true; + + return kStatus_Success; +} + +void MMC_HostDeinit(mmc_card_t *card) +{ + assert(card != NULL); + + SDMMCHOST_Deinit(card->host); + /* should re-init host */ + card->isHostReady = false; +} + +void MMC_HostReset(SDMMCHOST_CONFIG *host) +{ + SDMMCHOST_Reset(host); +} + +void MMC_PowerOnCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr) +{ + SDMMCHOST_PowerOnCard(base, pwr); +} + +void MMC_PowerOffCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr) +{ + SDMMCHOST_PowerOffCard(base, pwr); +} + +void MMC_SetCardPower(mmc_card_t *card, bool enable) +{ + SDMMCHOST_SetCardPower(card->host, enable); + SDMMC_OSADelay(MMC_POWER_RESET_DELAY); +} + +status_t MMC_Init(mmc_card_t *card) +{ + assert(card != NULL); + + if (!card->isHostReady) + { + if (MMC_HostInit(card) != kStatus_Success) + { + return kStatus_SDMMC_HostNotReady; + } + } + else + { + /* reset the host */ + MMC_HostReset(card->host); + } + + /* reset card power */ + MMC_SetCardPower(card, false); + MMC_SetCardPower(card, true); + + return MMC_CardInit(card); +} + +void MMC_Deinit(mmc_card_t *card) +{ + assert(card != NULL); + + MMC_CardDeinit(card); + MMC_HostDeinit(card); +} + +bool MMC_CheckReadOnly(mmc_card_t *card) +{ + assert(card != NULL); + + return (((card->csd.flags & (uint16_t)kMMC_CsdPermanentWriteProtectFlag) != 0U) || + ((card->csd.flags & (uint16_t)kMMC_CsdTemporaryWriteProtectFlag) != 0U)); +} + +status_t MMC_SelectPartition(mmc_card_t *card, mmc_access_partition_t partitionNumber) +{ + assert(card != NULL); + + uint8_t bootConfig; + mmc_extended_csd_config_t extendedCsdconfig; + + bootConfig = card->extendedCsd.partitionConfig; + bootConfig &= ~(uint8_t)MMC_PARTITION_CONFIG_PARTITION_ACCESS_MASK; + bootConfig |= ((uint8_t)partitionNumber << MMC_PARTITION_CONFIG_PARTITION_ACCESS_SHIFT); + + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeWriteBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexPartitionConfig; + extendedCsdconfig.ByteValue = bootConfig; + extendedCsdconfig.commandSet = kMMC_CommandSetStandard; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, true)) + { + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + + /* Save current configuration. */ + card->extendedCsd.partitionConfig = bootConfig; + card->currentPartition = partitionNumber; + + return kStatus_Success; +} + +status_t MMC_ReadBlocks(mmc_card_t *card, uint8_t *buffer, uint32_t startBlock, uint32_t blockCount) +{ + assert(card != NULL); + assert(buffer != NULL); + assert(blockCount != 0U); + + uint32_t blockCountOneTime; /* The block count can be erased in one time sending READ_BLOCKS command. */ + uint32_t blockDone; /* The blocks has been read. */ + uint32_t blockLeft; /* Left blocks to be read. */ + uint8_t *nextBuffer; + bool dataAddrAlign = true; + uint8_t *alignBuffer = (uint8_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + status_t error = kStatus_Success; + + blockLeft = blockCount; + blockDone = 0U; + error = MMC_CheckBlockRange(card, startBlock, blockCount); + if (kStatus_Success != error) + { + return kStatus_InvalidArgument; + } + + while (blockLeft != 0U) + { + nextBuffer = (uint8_t *)((uint32_t)buffer + blockDone * FSL_SDMMC_DEFAULT_BLOCK_SIZE); + if (!card->noInteralAlign && (!dataAddrAlign || ((((uint32_t)nextBuffer) & (sizeof(uint32_t) - 1U)) != 0U))) + { + blockLeft--; + blockCountOneTime = 1U; + (void)memset(alignBuffer, 0, FSL_SDMMC_DEFAULT_BLOCK_SIZE); + dataAddrAlign = false; + } + else + { + if (blockLeft > SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT) + { + blockLeft = (blockLeft - SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT); + blockCountOneTime = SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT; + } + else + { + blockCountOneTime = blockLeft; + blockLeft = 0U; + } + } + + error = MMC_Read(card, dataAddrAlign ? nextBuffer : (uint8_t *)alignBuffer, (startBlock + blockDone), + FSL_SDMMC_DEFAULT_BLOCK_SIZE, blockCountOneTime); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + blockDone += blockCountOneTime; + + if (!card->noInteralAlign && (!dataAddrAlign)) + { + (void)memcpy(nextBuffer, alignBuffer, FSL_SDMMC_DEFAULT_BLOCK_SIZE); + } + } + + return kStatus_Success; +} + +status_t MMC_WriteBlocks(mmc_card_t *card, const uint8_t *buffer, uint32_t startBlock, uint32_t blockCount) +{ + assert(card != NULL); + assert(buffer != NULL); + assert(blockCount != 0U); + + uint32_t blockCountOneTime; + uint32_t blockLeft; + uint32_t blockDone; + const uint8_t *nextBuffer; + bool dataAddrAlign = true; + uint8_t *alignBuffer = (uint8_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + status_t error = kStatus_Success; + + blockLeft = blockCount; + blockDone = 0U; + + error = MMC_CheckBlockRange(card, startBlock, blockCount); + if (kStatus_Success != error) + { + return kStatus_InvalidArgument; + } + + while (blockLeft != 0U) + { + nextBuffer = (uint8_t *)((uint32_t)buffer + blockDone * FSL_SDMMC_DEFAULT_BLOCK_SIZE); + if (!card->noInteralAlign && (!dataAddrAlign || (0U != (((uint32_t)nextBuffer) & (sizeof(uint32_t) - 1U))))) + { + blockLeft--; + blockCountOneTime = 1U; + (void)memcpy(alignBuffer, nextBuffer, FSL_SDMMC_DEFAULT_BLOCK_SIZE); + dataAddrAlign = false; + } + else + { + if (blockLeft > SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT) + { + blockLeft = (blockLeft - SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT); + blockCountOneTime = SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT; + } + else + { + blockCountOneTime = blockLeft; + blockLeft = 0U; + } + } + error = MMC_Write(card, dataAddrAlign ? nextBuffer : (uint8_t *)alignBuffer, (startBlock + blockDone), + FSL_SDMMC_DEFAULT_BLOCK_SIZE, blockCountOneTime); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + blockDone += blockCountOneTime; + if (!card->noInteralAlign && (!dataAddrAlign)) + { + (void)memset(alignBuffer, 0, FSL_SDMMC_DEFAULT_BLOCK_SIZE); + } + } + + return kStatus_Success; +} + +status_t MMC_EnableCacheControl(mmc_card_t *card, bool enable) +{ + assert(card != NULL); + + uint8_t cacheCtrl = 0; + + mmc_extended_csd_config_t extendedCsdconfig; + + /* check the target driver strength support or not */ + if (card->extendedCsd.cacheSize == 0U) + { + SDMMC_LOG("The cache is not supported by the mmc device\r\n"); + return kStatus_SDMMC_NotSupportYet; + } + + if (enable) + { + cacheCtrl = MMC_CACHE_CONTROL_ENABLE; + } + + /* Switch to high speed timing. */ + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeWriteBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexCacheControl; + extendedCsdconfig.ByteValue = cacheCtrl; + extendedCsdconfig.commandSet = kMMC_CommandSetStandard; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, false)) + { + SDMMC_LOG("cache enabled failed\r\n"); + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + + card->extendedCsd.cacheCtrl = cacheCtrl; + + return kStatus_Success; +} + +status_t MMC_FlushCache(mmc_card_t *card) +{ + assert(card != NULL); + + mmc_extended_csd_config_t extendedCsdconfig; + + /* check the target driver strength support or not */ + if ((card->extendedCsd.cacheSize == 0U) || (card->extendedCsd.cacheCtrl != MMC_CACHE_CONTROL_ENABLE)) + { + SDMMC_LOG("The cache is not supported or not enabled, please check\r\n"); + return kStatus_SDMMC_NotSupportYet; + } + + /* Switch to high speed timing. */ + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeWriteBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexFlushCache; + extendedCsdconfig.ByteValue = MMC_CACHE_TRIGGER_FLUSH; + extendedCsdconfig.commandSet = kMMC_CommandSetStandard; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, false)) + { + SDMMC_LOG("cache flush failed\r\n"); + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + + return kStatus_Success; +} + +status_t MMC_EraseGroups(mmc_card_t *card, uint32_t startGroup, uint32_t endGroup) +{ + assert(card != NULL); + + uint32_t startGroupAddress; + uint32_t endGroupAddress; + sdmmchost_cmd_t command = {0}; + sdmmchost_transfer_t content = {0}; + status_t error = kStatus_Success; + + error = MMC_CheckEraseGroupRange(card, startGroup, endGroup); + if (kStatus_Success != error) + { + return kStatus_InvalidArgument; + } + + if (kStatus_Success != MMC_PollingCardStatusBusy(card, false, MMC_CARD_ACCESS_WAIT_IDLE_TIMEOUT)) + { + return kStatus_SDMMC_PollingCardIdleFailed; + } + + /* Calculate the start group address and end group address */ + startGroupAddress = startGroup; + endGroupAddress = endGroup; + if ((card->flags & (uint32_t)kMMC_SupportHighCapacityFlag) != 0U) + { + /* The implementation of a higher than 2GB of density of memory will not be backwards compatible with the + lower densities.First of all the address argument for higher than 2GB of density of memory is changed to + be sector address (512B sectors) instead of byte address */ + startGroupAddress = (startGroupAddress * (card->eraseGroupBlocks)); + endGroupAddress = (endGroupAddress * (card->eraseGroupBlocks)); + } + else + { + /* The address unit is byte when card capacity is lower than 2GB */ + startGroupAddress = (startGroupAddress * (card->eraseGroupBlocks) * FSL_SDMMC_DEFAULT_BLOCK_SIZE); + endGroupAddress = (endGroupAddress * (card->eraseGroupBlocks) * FSL_SDMMC_DEFAULT_BLOCK_SIZE); + } + + /* Set the start erase group address */ + command.index = (uint32_t)kMMC_EraseGroupStart; + command.argument = startGroupAddress; + command.responseType = kCARD_ResponseTypeR1; + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG; + + content.command = &command; + content.data = NULL; + error = MMC_Transfer(card, &content, 0U); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + /* Set the end erase group address */ + command.index = (uint32_t)kMMC_EraseGroupEnd; + command.argument = endGroupAddress; + + content.command = &command; + content.data = NULL; + error = MMC_Transfer(card, &content, 0U); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + /* Start the erase process */ + command.index = (uint32_t)kSDMMC_Erase; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR1b; + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG; + + content.command = &command; + content.data = NULL; + error = MMC_Transfer(card, &content, 0U); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t MMC_SetBootConfigWP(mmc_card_t *card, uint8_t wp) +{ + assert(card != NULL); + + mmc_extended_csd_config_t extendedCsdconfig; + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeWriteBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexBootConfigWP; + extendedCsdconfig.ByteValue = wp; + extendedCsdconfig.commandSet = kMMC_CommandSetStandard; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, true)) + { + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + + card->extendedCsd.bootConfigProtect = wp; + + return kStatus_Success; +} + +status_t MMC_SetBootPartitionWP(mmc_card_t *card, mmc_boot_partition_wp_t bootPartitionWP) +{ + assert(card != NULL); + + mmc_extended_csd_config_t extendedCsdconfig; + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeWriteBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexBootPartitionWP; + extendedCsdconfig.ByteValue = (uint8_t)bootPartitionWP; + extendedCsdconfig.commandSet = kMMC_CommandSetStandard; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, true)) + { + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + + card->extendedCsd.bootPartitionWP = (uint8_t)bootPartitionWP; + + return kStatus_Success; +} + +status_t MMC_SetBootConfig(mmc_card_t *card, const mmc_boot_config_t *config) +{ + assert(card != NULL); + assert(config != NULL); + + uint8_t bootParameter; + uint8_t bootBusWidth = (uint8_t)config->bootDataBusWidth; + mmc_extended_csd_config_t extendedCsdconfig; + + if (card->extendedCsd.extendecCsdVersion <= + (uint32_t)kMMC_ExtendedCsdRevision13) /* V4.3 or above version card support boot mode */ + { + return kStatus_SDMMC_NotSupportYet; + } + + /* Set the BOOT_CONFIG field of Extended CSD */ + bootParameter = card->extendedCsd.partitionConfig; + bootParameter &= + ~((uint8_t)MMC_PARTITION_CONFIG_BOOT_ACK_MASK | (uint8_t)MMC_PARTITION_CONFIG_PARTITION_ENABLE_MASK); + bootParameter |= ((config->enableBootAck ? 1U : 0U) << MMC_PARTITION_CONFIG_BOOT_ACK_SHIFT); + bootParameter |= ((uint8_t)(config->bootPartition) << MMC_PARTITION_CONFIG_PARTITION_ENABLE_SHIFT); + + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeWriteBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexPartitionConfig; + extendedCsdconfig.ByteValue = bootParameter; + extendedCsdconfig.commandSet = kMMC_CommandSetStandard; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, true)) + { + return kStatus_SDMMC_ConfigureExtendedCsdFailed; + } + + card->extendedCsd.partitionConfig = bootParameter; + + /* data bus remapping */ + if (bootBusWidth == (uint8_t)kMMC_DataBusWidth1bit) + { + bootBusWidth = 0U; + } + else if ((bootBusWidth == (uint8_t)kMMC_DataBusWidth4bit) || (bootBusWidth == (uint8_t)kMMC_DataBusWidth4bitDDR)) + { + bootBusWidth = 1U; + } + else + { + bootBusWidth = 2U; + } + + /*Set BOOT_BUS_CONDITIONS in Extended CSD */ + bootParameter = card->extendedCsd.bootDataBusConditions; + bootParameter &= (uint8_t) ~(MMC_BOOT_BUS_CONDITION_RESET_BUS_CONDITION_MASK | + MMC_BOOT_BUS_CONDITION_BUS_WIDTH_MASK | MMC_BOOT_BUS_CONDITION_BOOT_MODE_MASK); + bootParameter |= + (uint8_t)((config->retainBootbusCondition ? 1U : 0U) << MMC_BOOT_BUS_CONDITION_RESET_BUS_CONDITION_SHIFT); + bootParameter |= bootBusWidth << MMC_BOOT_BUS_CONDITION_BUS_WIDTH_SHIFT; + bootParameter |= ((uint8_t)(config->bootTimingMode) << MMC_BOOT_BUS_CONDITION_BOOT_MODE_SHIFT) & + MMC_BOOT_BUS_CONDITION_BOOT_MODE_MASK; + + extendedCsdconfig.accessMode = kMMC_ExtendedCsdAccessModeWriteBits; + extendedCsdconfig.ByteIndex = (uint8_t)kMMC_ExtendedCsdIndexBootBusConditions; + extendedCsdconfig.ByteValue = bootParameter; + if (kStatus_Success != MMC_SetExtendedCsdConfig(card, &extendedCsdconfig, true)) + { + return kStatus_SDMMC_ConfigureBootFailed; + } + + card->extendedCsd.bootDataBusConditions = bootParameter; + /* check and configure the boot config write protect */ + bootParameter = (uint8_t)config->pwrBootConfigProtection | (((uint8_t)config->premBootConfigProtection) << 4U); + if (bootParameter != (card->extendedCsd.bootConfigProtect)) + { + if (kStatus_Success != MMC_SetBootConfigWP(card, bootParameter)) + { + return kStatus_SDMMC_ConfigureBootFailed; + } + } + /* check and configure the boot partition write protect */ + if (card->extendedCsd.bootPartitionWP != (uint8_t)(config->bootPartitionWP)) + { + if (kStatus_Success != MMC_SetBootPartitionWP(card, config->bootPartitionWP)) + { + return kStatus_SDMMC_ConfigureBootFailed; + } + } + + return kStatus_Success; +} + +status_t MMC_StartBoot(mmc_card_t *card, + const mmc_boot_config_t *mmcConfig, + uint8_t *buffer, + sdmmchost_boot_config_t *hostConfig) +{ + assert(card != NULL); + assert(mmcConfig != NULL); + assert(buffer != NULL); + + sdmmchost_cmd_t command = {0}; + uint32_t tempClock = 0U; + + if (!card->isHostReady) + { + return kStatus_Fail; + } + + /* send card active */ + SDMMCHOST_SendCardActive(card->host); + /* enable MMC boot */ + SDMMCHOST_EnableBoot(card->host, true); + + if (mmcConfig->bootTimingMode == kMMC_BootModeSDRWithDefaultTiming) + { + /* Set clock to 400KHz. */ + tempClock = SDMMC_CLOCK_400KHZ; + } + else + { + /* Set clock to 52MHZ. */ + tempClock = MMC_CLOCK_52MHZ; + } + (void)SDMMCHOST_SetCardClock(card->host, tempClock); + +#if SDMMCHOST_SUPPORT_DDR_MODE + if (mmcConfig->bootTimingMode == kMMC_BootModeDDRTiming) + { + /* enable DDR mode */ + SDMMCHOST_EnableDDRMode(card->host, true, 0U); + } +#endif + + /* data bus remapping */ + if (mmcConfig->bootDataBusWidth == kMMC_DataBusWidth1bit) + { + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith1Bit); + } + else if ((mmcConfig->bootDataBusWidth == kMMC_DataBusWidth4bit) || + (mmcConfig->bootDataBusWidth == kMMC_DataBusWidth4bitDDR)) + { + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith4Bit); + } + else + { + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith8Bit); + } + + if (kMMC_BootModeAlternative == mmcConfig->bootMode) + { + /* alternative boot mode */ + command.argument = 0xFFFFFFFAU; + } + + command.index = (uint32_t)kSDMMC_GoIdleState; + + /* should check tuning error during every transfer*/ + if (kStatus_Success != SDMMCHOST_StartBoot(card->host, hostConfig, &command, buffer)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t MMC_ReadBootData(mmc_card_t *card, uint8_t *buffer, sdmmchost_boot_config_t *hostConfig) +{ + assert(card != NULL); + assert(buffer != NULL); + + /* should check tuning error during every transfer*/ + if (kStatus_Success != SDMMCHOST_ReadBootData(card->host, hostConfig, buffer)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t MMC_StopBoot(mmc_card_t *card, uint32_t bootMode) +{ + assert(card != NULL); + /* Disable boot mode */ + if ((uint32_t)kMMC_BootModeAlternative == bootMode) + { + /* Send CMD0 to reset the bus */ + if (kStatus_Success != MMC_GoIdle(card)) + { + return kStatus_SDMMC_GoIdleFailed; + } + } + /* disable MMC boot */ + SDMMCHOST_EnableBoot(card->host, false); + + return kStatus_Success; +} diff --git a/middleware/sdmmc/mmc/fsl_mmc.h b/middleware/sdmmc/mmc/fsl_mmc.h new file mode 100644 index 0000000..5b5ee75 --- /dev/null +++ b/middleware/sdmmc/mmc/fsl_mmc.h @@ -0,0 +1,373 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef _FSL_MMC_H_ +#define _FSL_MMC_H_ + +#include "fsl_sdmmc_common.h" + +/*! + * @addtogroup MMCCARD + * @{ + */ + +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*! @brief Middleware mmc version. */ +#define FSL_MMC_DRIVER_VERSION (MAKE_VERSION(2U, 4U, 1U)) /*2.4.1*/ + +/*! @brief MMC card flags + * @anchor _mmc_card_flag + */ +enum +{ + kMMC_SupportHighSpeed26MHZFlag = (1U << 0U), /*!< Support high speed 26MHZ */ + kMMC_SupportHighSpeed52MHZFlag = (1U << 1U), /*!< Support high speed 52MHZ */ + kMMC_SupportHighSpeedDDR52MHZ180V300VFlag = (1 << 2U), /*!< ddr 52MHZ 1.8V or 3.0V */ + kMMC_SupportHighSpeedDDR52MHZ120VFlag = (1 << 3U), /*!< DDR 52MHZ 1.2V */ + kMMC_SupportHS200200MHZ180VFlag = (1 << 4U), /*!< HS200 ,200MHZ,1.8V */ + kMMC_SupportHS200200MHZ120VFlag = (1 << 5U), /*!< HS200, 200MHZ, 1.2V */ + kMMC_SupportHS400DDR200MHZ180VFlag = (1 << 6U), /*!< HS400, DDR, 200MHZ,1.8V */ + kMMC_SupportHS400DDR200MHZ120VFlag = (1 << 7U), /*!< HS400, DDR, 200MHZ,1.2V */ + kMMC_SupportHighCapacityFlag = (1U << 8U), /*!< Support high capacity */ + kMMC_SupportAlternateBootFlag = (1U << 9U), /*!< Support alternate boot */ + kMMC_SupportDDRBootFlag = (1U << 10U), /*!< support DDR boot flag*/ + kMMC_SupportHighSpeedBootFlag = (1U << 11U), /*!< support high speed boot flag */ + kMMC_SupportEnhanceHS400StrobeFlag = (1U << 12U), /*!< support enhance HS400 strobe */ +}; + +/*! @brief card io strength control */ +typedef void (*mmc_io_strength_t)(uint32_t busFreq); + +/*! @brief card user parameter */ +typedef struct _mmc_usr_param +{ + mmc_io_strength_t ioStrength; /*!< swicth sd io strength */ + uint32_t maxFreq; /*!< board support maximum frequency */ + uint32_t capability; /*!< board capability flag */ +} mmc_usr_param_t; + +/*! + * @brief mmc card state + * + * Define the card structure including the necessary fields to identify and describe the card. + */ +typedef struct _mmc_card +{ + sdmmchost_t *host; /*!< Host information */ + mmc_usr_param_t usrParam; /*!< user parameter */ + + bool isHostReady; /*!< Use this flag to indicate if need host re-init or not*/ + bool noInteralAlign; /*!< use this flag to disable sdmmc align. If disable, sdmmc will not make sure the + data buffer address is word align, otherwise all the transfer are align to low level driver */ + uint32_t busClock_Hz; /*!< MMC bus clock united in Hz */ + uint32_t relativeAddress; /*!< Relative address of the card */ + bool enablePreDefinedBlockCount; /*!< Enable PRE-DEFINED block count when read/write */ + uint32_t flags; /*!< Capability flag in _mmc_card_flag */ + + uint8_t internalBuffer[FSL_SDMMC_CARD_INTERNAL_BUFFER_SIZE]; /*!< raw buffer used for mmc driver internal */ + uint32_t ocr; /*!< Raw OCR content */ + mmc_cid_t cid; /*!< CID */ + mmc_csd_t csd; /*!< CSD */ + mmc_extended_csd_t extendedCsd; /*!< Extended CSD */ + uint32_t blockSize; /*!< Card block size */ + uint32_t userPartitionBlocks; /*!< Card total block number in user partition */ + uint32_t bootPartitionBlocks; /*!< Boot partition size united as block size */ + uint32_t eraseGroupBlocks; /*!< Erase group size united as block size */ + mmc_access_partition_t currentPartition; /*!< Current access partition */ + mmc_voltage_window_t hostVoltageWindowVCCQ; /*!< application must set this value according to board specific */ + mmc_voltage_window_t hostVoltageWindowVCC; /*!< application must set this value according to board specific */ + mmc_high_speed_timing_t busTiming; /*!< indicate the current work timing mode*/ + mmc_data_bus_width_t busWidth; /*!< indicate the current work bus width */ +} mmc_card_t; + +/************************************************************************************************* + * API + ************************************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name MMCCARD Function + * @{ + */ + +/*! + * @brief Initializes the MMC card and host. + * + * @param card Card descriptor. + * + * @retval kStatus_SDMMC_HostNotReady host is not ready. + * @retval kStatus_SDMMC_GoIdleFailed Go idle failed. + * @retval kStatus_SDMMC_SendOperationConditionFailed Send operation condition failed. + * @retval kStatus_SDMMC_AllSendCidFailed Send CID failed. + * @retval kStatus_SDMMC_SetRelativeAddressFailed Set relative address failed. + * @retval kStatus_SDMMC_SendCsdFailed Send CSD failed. + * @retval kStatus_SDMMC_CardNotSupport Card not support. + * @retval kStatus_SDMMC_SelectCardFailed Send SELECT_CARD command failed. + * @retval kStatus_SDMMC_SendExtendedCsdFailed Send EXT_CSD failed. + * @retval kStatus_SDMMC_SetBusWidthFailed Set bus width failed. + * @retval kStatus_SDMMC_SwitchHighSpeedFailed Switch high speed failed. + * @retval kStatus_SDMMC_SetCardBlockSizeFailed Set card block size failed. + * @retval kStatus_Success Operate successfully. + */ +status_t MMC_Init(mmc_card_t *card); + +/*! + * @brief Deinitializes the card and host. + * + * @param card Card descriptor. + */ +void MMC_Deinit(mmc_card_t *card); + +/*! + * @brief intialize the card. + * + * @param card Card descriptor. + * + * @retval kStatus_SDMMC_HostNotReady host is not ready. + * @retval kStatus_SDMMC_GoIdleFailed Go idle failed. + * @retval kStatus_SDMMC_SendOperationConditionFailed Send operation condition failed. + * @retval kStatus_SDMMC_AllSendCidFailed Send CID failed. + * @retval kStatus_SDMMC_SetRelativeAddressFailed Set relative address failed. + * @retval kStatus_SDMMC_SendCsdFailed Send CSD failed. + * @retval kStatus_SDMMC_CardNotSupport Card not support. + * @retval kStatus_SDMMC_SelectCardFailed Send SELECT_CARD command failed. + * @retval kStatus_SDMMC_SendExtendedCsdFailed Send EXT_CSD failed. + * @retval kStatus_SDMMC_SetBusWidthFailed Set bus width failed. + * @retval kStatus_SDMMC_SwitchHighSpeedFailed Switch high speed failed. + * @retval kStatus_SDMMC_SetCardBlockSizeFailed Set card block size failed. + * @retval kStatus_Success Operate successfully. + */ +status_t MMC_CardInit(mmc_card_t *card); + +/*! + * @brief Deinitializes the card. + * + * @param card Card descriptor. + */ +void MMC_CardDeinit(mmc_card_t *card); + +/*! + * @brief initialize the host. + * + * This function deinitializes the specific host. + * + * @param card Card descriptor. + */ +status_t MMC_HostInit(mmc_card_t *card); + +/*! + * @brief Deinitializes the host. + * + * This function deinitializes the host. + * + * @param card Card descriptor. + */ +void MMC_HostDeinit(mmc_card_t *card); + +/*! + * @brief reset the host. + * + * This function reset the specific host. + * + * @param host host descriptor. + */ +void MMC_HostReset(SDMMCHOST_CONFIG *host); + +/*! + * @brief power on card. + * + * The power on operation depend on host or the user define power on function. + * @deprecated Do not use this function. It has been superceded by @ref MMC_SetCardPower. + * @param base host base address. + * @param pwr user define power control configuration + */ +void MMC_PowerOnCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr); + +/*! + * @brief power off card. + * + * The power off operation depend on host or the user define power on function. + * @deprecated Do not use this function. It has been superceded by @ref MMC_SetCardPower. + * @param base host base address. + * @param pwr user define power control configuration + */ +void MMC_PowerOffCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr); + +/*! + * @brief set card power. + * + * @param card card descriptor. + * @param enable true is power on, false is power off. + */ +void MMC_SetCardPower(mmc_card_t *card, bool enable); + +/*! + * @brief Checks if the card is read-only. + * + * @param card Card descriptor. + * @retval true Card is read only. + * @retval false Card isn't read only. + */ +bool MMC_CheckReadOnly(mmc_card_t *card); + +/*! + * @brief Reads data blocks from the card. + * + * @param card Card descriptor. + * @param buffer The buffer to save data. + * @param startBlock The start block index. + * @param blockCount The number of blocks to read. + * @retval kStatus_InvalidArgument Invalid argument. + * @retval kStatus_SDMMC_CardNotSupport Card not support. + * @retval kStatus_SDMMC_SetBlockCountFailed Set block count failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_StopTransmissionFailed Stop transmission failed. + * @retval kStatus_Success Operate successfully. + */ +status_t MMC_ReadBlocks(mmc_card_t *card, uint8_t *buffer, uint32_t startBlock, uint32_t blockCount); + +/*! + * @brief Writes data blocks to the card. + * + * @param card Card descriptor. + * @param buffer The buffer to save data blocks. + * @param startBlock Start block number to write. + * @param blockCount Block count. + * @retval kStatus_InvalidArgument Invalid argument. + * @retval kStatus_SDMMC_NotSupportYet Not support now. + * @retval kStatus_SDMMC_SetBlockCountFailed Set block count failed. + * @retval kStatus_SDMMC_WaitWriteCompleteFailed Send status failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_StopTransmissionFailed Stop transmission failed. + * @retval kStatus_Success Operate successfully. + */ +status_t MMC_WriteBlocks(mmc_card_t *card, const uint8_t *buffer, uint32_t startBlock, uint32_t blockCount); + +/*! + * @brief Erases groups of the card. + * + * Erase group is the smallest erase unit in MMC card. The erase range is [startGroup, endGroup]. + * + * @param card Card descriptor. + * @param startGroup Start group number. + * @param endGroup End group number. + * @retval kStatus_InvalidArgument Invalid argument. + * @retval kStatus_SDMMC_WaitWriteCompleteFailed Send status failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +status_t MMC_EraseGroups(mmc_card_t *card, uint32_t startGroup, uint32_t endGroup); + +/*! + * @brief Selects the partition to access. + * + * @param card Card descriptor. + * @param partitionNumber The partition number. + * @retval kStatus_SDMMC_ConfigureExtendedCsdFailed Configure EXT_CSD failed. + * @retval kStatus_Success Operate successfully. + */ +status_t MMC_SelectPartition(mmc_card_t *card, mmc_access_partition_t partitionNumber); + +/*! + * @brief Configures the boot activity of the card. + * + * @param card Card descriptor. + * @param config Boot configuration structure. + * @retval kStatus_SDMMC_NotSupportYet Not support now. + * @retval kStatus_SDMMC_ConfigureExtendedCsdFailed Configure EXT_CSD failed. + * @retval kStatus_SDMMC_ConfigureBootFailed Configure boot failed. + * @retval kStatus_Success Operate successfully. + */ +status_t MMC_SetBootConfig(mmc_card_t *card, const mmc_boot_config_t *config); + +/*! + * @brief MMC card start boot. + * + * @param card Card descriptor. + * @param mmcConfig mmc Boot configuration structure. + * @param buffer address to recieve data. + * @param hostConfig host boot configurations. + * @retval kStatus_Fail fail. + * @retval kStatus_SDMMC_TransferFailed transfer fail. + * @retval kStatus_SDMMC_GoIdleFailed reset card fail. + * @retval kStatus_Success Operate successfully. + */ +status_t MMC_StartBoot(mmc_card_t *card, + const mmc_boot_config_t *mmcConfig, + uint8_t *buffer, + sdmmchost_boot_config_t *hostConfig); + +/*! + * @brief MMC card set boot configuration write protect. + * + * @param card Card descriptor. + * @param wp write protect value. + */ +status_t MMC_SetBootConfigWP(mmc_card_t *card, uint8_t wp); + +/*! + * @brief MMC card continous read boot data. + * + * @param card Card descriptor. + * @param buffer buffer address. + * @param hostConfig host boot configurations. + */ +status_t MMC_ReadBootData(mmc_card_t *card, uint8_t *buffer, sdmmchost_boot_config_t *hostConfig); + +/*! + * @brief MMC card stop boot mode. + * + * @param card Card descriptor. + * @param bootMode boot mode. + */ +status_t MMC_StopBoot(mmc_card_t *card, uint32_t bootMode); + +/*! + * @brief MMC card set boot partition write protect. + * + * @param card Card descriptor. + * @param bootPartitionWP boot partition write protect value. + */ +status_t MMC_SetBootPartitionWP(mmc_card_t *card, mmc_boot_partition_wp_t bootPartitionWP); + +/*! + * @brief MMC card cache control function. + * + * The mmc device's cache is enabled by the driver by default. + * The cache should in typical case reduce the access time (compared to an access to the main nonvolatile storage) for + * both write and read. + * + * @param card Card descriptor. + * @param enable true is enable the cache, false is disable the cache. + */ +status_t MMC_EnableCacheControl(mmc_card_t *card, bool enable); + +/*! + * @brief MMC card cache flush function. + * + * A Flush operation refers to the requirement, from the host to the device, to write the cached data to the nonvolatile + * memory. Prior to a flush, the device may autonomously write data to the nonvolatile memory, but after the flush + * operation all data in the volatile area must be written to nonvolatile memory There is no requirement for flush due + * to switching between the partitions. (Note: This also implies that the cache data shall not be lost when switching + * between partitions). Cached data may be lost in SLEEP state, so host should flush the cache before placing the device + * into SLEEP state. + * + * @param card Card descriptor. + */ +status_t MMC_FlushCache(mmc_card_t *card); + +/* @} */ +#if defined(__cplusplus) +} +#endif +/*! @} */ +#endif /* _FSL_MMC_H_*/ diff --git a/middleware/sdmmc/osa/fsl_sdmmc_osa.c b/middleware/sdmmc/osa/fsl_sdmmc_osa.c new file mode 100644 index 0000000..d2fed40 --- /dev/null +++ b/middleware/sdmmc/osa/fsl_sdmmc_osa.c @@ -0,0 +1,196 @@ +/* + * Copyright 2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include "fsl_sdmmc_osa.h" + +/******************************************************************************* + * Definitons + ******************************************************************************/ + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/******************************************************************************* + * Variables + ******************************************************************************/ + +/******************************************************************************* + * Code + ******************************************************************************/ +/*! + * brief Initialize OSA. + */ +void SDMMC_OSAInit(void) +{ + /* Intentional empty */ +} + +/*! + * brief OSA Create event. + * param event handle. + * retval kStatus_Fail or kStatus_Success. + */ +status_t SDMMC_OSAEventCreate(void *eventHandle) +{ + assert(eventHandle != NULL); + +#if defined(SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE) && SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE + (void)OSA_SemaphoreCreate(&(((sdmmc_osa_event_t *)eventHandle)->handle), 0U); +#else + (void)OSA_EventCreate(&(((sdmmc_osa_event_t *)eventHandle)->handle), true); +#endif + + return kStatus_Success; +} + +/*! + * brief Wait event. + * + * param eventHandle The event type + * param eventType Timeout time in milliseconds. + * param timeoutMilliseconds timeout value in ms. + * param event event flags. + * retval kStatus_Fail or kStatus_Success. + */ +status_t SDMMC_OSAEventWait(void *eventHandle, uint32_t eventType, uint32_t timeoutMilliseconds, uint32_t *event) +{ + assert(eventHandle != NULL); + + osa_status_t status = KOSA_StatusError; + +#if defined(SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE) && SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE + while (true) + { + status = OSA_SemaphoreWait(&(((sdmmc_osa_event_t *)eventHandle)->handle), timeoutMilliseconds); + if (KOSA_StatusTimeout == status) + { + break; + } + + if (KOSA_StatusSuccess == status) + { + (void)SDMMC_OSAEventGet(eventHandle, eventType, event); + if ((*event & eventType) != 0U) + { + return kStatus_Success; + } + } + } + +#else + while (true) + { + status = OSA_EventWait(&(((sdmmc_osa_event_t *)eventHandle)->handle), eventType, 0, timeoutMilliseconds, event); + if ((KOSA_StatusSuccess == status) || (KOSA_StatusTimeout == status)) + { + break; + } + } + + if (KOSA_StatusSuccess == status) + { + return kStatus_Success; + } +#endif + + return kStatus_Fail; +} + +/*! + * brief set event. + * param event event handle. + * param eventType The event type + * retval kStatus_Fail or kStatus_Success. + */ +status_t SDMMC_OSAEventSet(void *eventHandle, uint32_t eventType) +{ + assert(eventHandle != NULL); + +#if defined(SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE) && SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE + ((sdmmc_osa_event_t *)eventHandle)->eventFlag |= eventType; + (void)OSA_SemaphorePost(&(((sdmmc_osa_event_t *)eventHandle)->handle)); +#else + (void)OSA_EventSet(&(((sdmmc_osa_event_t *)eventHandle)->handle), eventType); +#endif + + return kStatus_Success; +} + +/*! + * brief Get event flag. + * param eventHandle event handle. + * param eventType The event type + * param flag pointer to store event value. + * retval kStatus_Fail or kStatus_Success. + */ +status_t SDMMC_OSAEventGet(void *eventHandle, uint32_t eventType, uint32_t *flag) +{ + assert(eventHandle != NULL); + assert(flag != NULL); + +#if defined(SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE) && SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE + OSA_SR_ALLOC(); + OSA_ENTER_CRITICAL(); + *flag = ((sdmmc_osa_event_t *)eventHandle)->eventFlag; + OSA_EXIT_CRITICAL(); +#else + (void)OSA_EventGet(&(((sdmmc_osa_event_t *)eventHandle)->handle), eventType, flag); +#endif + + return kStatus_Success; +} + +/*! + * brief clear event flag. + * param eventHandle event handle. + * param eventType The event type + * retval kStatus_Fail or kStatus_Success. + */ +status_t SDMMC_OSAEventClear(void *eventHandle, uint32_t eventType) +{ + assert(eventHandle != NULL); + +#if defined(SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE) && SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE + OSA_SR_ALLOC(); + OSA_ENTER_CRITICAL(); + ((sdmmc_osa_event_t *)eventHandle)->eventFlag &= ~eventType; + OSA_EXIT_CRITICAL(); +#else + (void)OSA_EventClear(&(((sdmmc_osa_event_t *)eventHandle)->handle), eventType); +#endif + + return kStatus_Success; +} + +/*! + * brief Delete event. + * param event The event handle. + */ +status_t SDMMC_OSAEventDestroy(void *eventHandle) +{ +#if defined(SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE) && SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE + (void)OSA_SemaphoreDestroy(&(((sdmmc_osa_event_t *)eventHandle)->handle)); +#else + (void)OSA_EventDestroy(&(((sdmmc_osa_event_t *)eventHandle)->handle)); +#endif + + return kStatus_Success; +} + +/*! + * brief sdmmc delay. + * param milliseconds time to delay + */ +void SDMMC_OSADelay(uint32_t milliseconds) +{ +#if (defined FSL_OSA_BM_TIMER_CONFIG) && (FSL_OSA_BM_TIMER_CONFIG == FSL_OSA_BM_TIMER_NONE) + SDK_DelayAtLeastUs(milliseconds * 1000U, SDK_DEVICE_MAXIMUM_CPU_CLOCK_FREQUENCY); +#else + OSA_TimeDelay(milliseconds); +#endif +} diff --git a/middleware/sdmmc/osa/fsl_sdmmc_osa.h b/middleware/sdmmc/osa/fsl_sdmmc_osa.h new file mode 100644 index 0000000..5d4cc3f --- /dev/null +++ b/middleware/sdmmc/osa/fsl_sdmmc_osa.h @@ -0,0 +1,125 @@ +/* + * Copyright 2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef _FSL_SDMMC_OSA_H_ +#define _FSL_SDMMC_OSA_H_ + +#include "fsl_common.h" +#include "fsl_os_abstraction.h" + +/*! + * @addtogroup SDMMC_OSA + * @{ + */ +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*!@brief transfer event */ +#define SDMMC_OSA_EVENT_TRANSFER_CMD_SUCCESS (1UL << 0U) +#define SDMMC_OSA_EVENT_TRANSFER_CMD_FAIL (1UL << 1U) +#define SDMMC_OSA_EVENT_TRANSFER_DATA_SUCCESS (1UL << 2U) +#define SDMMC_OSA_EVENT_TRANSFER_DATA_FAIL (1UL << 3U) +#define SDMMC_OSA_EVENT_TRANSFER_DMA_COMPLETE (1UL << 4U) + +/*!@brief card detect event, start from index 8 */ +#define SDMMC_OSA_EVENT_CARD_INSERTED (1UL << 8U) +#define SDMMC_OSA_EVENT_CARD_REMOVED (1UL << 9U) + +/*!@brief enable semphore by default */ +#ifndef SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE +#define SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE 1 +#endif + +/*!@brief sdmmc osa event */ +typedef struct _sdmmc_osa_event +{ +#if defined(SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE) && SDMMC_OSA_POLLING_EVENT_BY_SEMPHORE + volatile uint32_t eventFlag; + OSA_SEMAPHORE_HANDLE_DEFINE(handle); +#else + OSA_EVENT_HANDLE_DEFINE(handle); +#endif +} sdmmc_osa_event_t; +/******************************************************************************* + * API + ******************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name sdmmc osa Function + * @{ + */ + +/*! + * @brief Initialize OSA. + */ +void SDMMC_OSAInit(void); + +/*! + * @brief OSA Create event. + * @param eventHandle event handle. + * @retval kStatus_Fail or kStatus_Success. + */ +status_t SDMMC_OSAEventCreate(void *eventHandle); + +/*! + * @brief Wait event. + * + * @param eventHandle The event type + * @param eventType Timeout time in milliseconds. + * @param timeoutMilliseconds timeout value in ms. + * @param event event flags. + * @retval kStatus_Fail or kStatus_Success. + */ +status_t SDMMC_OSAEventWait(void *eventHandle, uint32_t eventType, uint32_t timeoutMilliseconds, uint32_t *event); + +/*! + * @brief set event. + * @param eventHandle event handle. + * @param eventType The event type + * @retval kStatus_Fail or kStatus_Success. + */ +status_t SDMMC_OSAEventSet(void *eventHandle, uint32_t eventType); + +/*! + * @brief Get event flag. + * @param eventHandle event handle. + * @param eventType event type. + * @param flag pointer to store event value. + * @retval kStatus_Fail or kStatus_Success. + */ +status_t SDMMC_OSAEventGet(void *eventHandle, uint32_t eventType, uint32_t *flag); + +/*! + * @brief clear event flag. + * @param eventHandle event handle. + * @param eventType The event type + * @retval kStatus_Fail or kStatus_Success. + */ +status_t SDMMC_OSAEventClear(void *eventHandle, uint32_t eventType); + +/*! + * @brief Delete event. + * @param eventHandle The event handle. + */ +status_t SDMMC_OSAEventDestroy(void *eventHandle); + +/*! + * @brief sdmmc delay. + * @param milliseconds time to delay + */ +void SDMMC_OSADelay(uint32_t milliseconds); + +/* @} */ + +#if defined(__cplusplus) +} +#endif +/* @} */ +#endif /* _FSL_SDMMC_OSA_H_*/ diff --git a/middleware/sdmmc/sd/ChangeLogKSDK.txt b/middleware/sdmmc/sd/ChangeLogKSDK.txt new file mode 100644 index 0000000..52f78a1 --- /dev/null +++ b/middleware/sdmmc/sd/ChangeLogKSDK.txt @@ -0,0 +1,112 @@ +/*! +@page middleware_log Middleware Change Log + +@section sd SD Card driver for MCUXpresso SDK + The current driver version is 2.3.3. + + - 2.3.3 + - Improvements + - Added host SDR timing mode capability validation during card initialization. + - Added plling card ready for data status when transfer data failed. + - Used cache line size align buffer for SD initialization api. + - Bug Fixes + - Fixed violations of MISRA C-2012 rule 11.9, 15.7, 4.7, 16.4, 10.1, 10.3, 10.4, 11.3, 14.4, 10.6, 17.7, 16.1, 16.3. + + - 2.3.2 + - Improvements + - Moved power off function after card detect in SD_Init for DAT3 detect card feature. + + - 2.3.1 + - Improvements + - Removed the dead loop while polling DAT0 and CMD13 instead of using timeout mechanism. + + - 2.3.0 + - Improvements + - Marked api SD_HostReset/SD_PowerOnCard/SD_PowerOffCard/SD_WaitCardDetectStatus as deprecated. + - Added new api SD_SetCardPower/SD_PollingCardDetectStatus/SD_HostDoReset. + - Added internalBuffer in sd_card_t and removed rawCid/rawCsd/rawScr. + - Added retuning support during data transfer under SDR50/SDR104 mode. + - Increased the read/write blocks failed retry times for stability. + - Added delay while retry the ACMD41 for stability. + + - 2.2.12 + - Improvements + - Increased the sd io driver strength for SD2.0 card. + - Bug Fixes + - Fixed the build warning by changing the old style function declaration static + status_t inline to static inline status_t(found by adding + -Wold-style-declaration in armgcc build flag). + + - 2.2.10 + - Bug Fixes + - Added event value check for all the FreeRTOS events to fix program hangs + when a card event occurs before create. + + - 2.2.7 + - Bug Fixes + - Fixed MDK 66-D warning. + + - 2.2.5 + - Improvements + - Added SD_ReadStatus api to get 512bit SD status. + - Added error log support in sdcard functions. + - Added SDMMC_ENABLE_SOFTWARE_TUNING to enable/disable software tuning and it is disabled by default. + + - 2.2.4 + - Bug Fixes + - Fixed DDR mode data sequence miss issue, which is caused by NIBBLE_POS. + - Improvements + - Increased g_sdmmc 512byte to improve the performance when application use a non-word align data buffer address. + - Enabled auto cmd12 for SD read/write. + + - 2.2.3 + - Bug Fixes + - Added response check for send operation condition command. If not checked, the card may occasionally init fail. + + - 2.2.1 + - Improvements + - Kept SD_Init function for forward compatibility. + + - 2.2.0 + - Improvements + - Separated the SD/MMC/SDIO init API to xxx_CardInit/xxx_HostInit. + - SD_Init/SDIO_Init will be deprecated in the next version. + + - 2.1.6 + - Improvements + - Enhanced SD IO default driver strength. + + - 2.1.5 + - Bug Fixes + - Fixed Coverity issue. + - Fixed SD v1.x card write fail issue. It was caused by the block length set error. + - Fixed card cannot detect dynamically. + + - 2.1.3 + - Bug Fixes + - Fixed Non high-speed sdcard init fail at switch to high speed. + - Improvements + - Added Delay for SDCard power up. + + - 2.1.2 + - Improvements + - Improved SDMMC to support SD v3.0. + + - 2.1.1 + - Bug Fixes + - Fixed the bit mask error in the SD card switch to high speed function. + - Improvements + - Optimized the SD card initialization function. + + - 2.1.0 + - Bug Fixes + - Changed the callback mechanism when sending a command. + - Fixed the performance low issue when transferring data. + - Improvements + - Changed the name of some error codes returned by internal function. + - Merged all host related attributes to one structure. + + - 2.0.0 + - Initial version. + +*/ diff --git a/middleware/sdmmc/sd/fsl_sd.c b/middleware/sdmmc/sd/fsl_sd.c new file mode 100644 index 0000000..a46547e --- /dev/null +++ b/middleware/sdmmc/sd/fsl_sd.c @@ -0,0 +1,2290 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2019 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#include "fsl_sd.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*!@brief power reset delay */ +#define SD_POWER_RESET_DELAY (500U) +#ifndef SD_CARD_ACCESS_WAIT_IDLE_TIMEOUT +#define SD_CARD_ACCESS_WAIT_IDLE_TIMEOUT (10000U) +#endif +#ifndef SD_CMD13_RETRY_TIMES +#define SD_CMD13_RETRY_TIMES (10000U) +#endif +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Wait write process complete. + * + * @param card Card descriptor. + * @retval kStatus_Timeout Send command timeout. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_WaitWriteComplete(sd_card_t *card); + +/*! + * @brief send write success blocks. + * + * @param card Card descriptor. + * @param blocks blocks number wirte successed + * @retval kStatus_SDMMC_TransferFailed Send command failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_SendWriteSuccessBlocks(sd_card_t *card, uint32_t *blocks); + +/*! + * @brief Send SEND_APPLICATION_COMMAND command. + * + * @param card Card descriptor. + * @param relativeaddress + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_CardNotSupport Card doesn't support. + * @retval kStatus_Success Operate successfully. + */ +static inline status_t SD_SendApplicationCmd(sd_card_t *card, uint32_t relativeAddress); + +/*! + * @brief Send GO_IDLE command to set the card to be idle state. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static inline status_t SD_GoIdle(sd_card_t *card); + +/*! + * @brief Send STOP_TRANSMISSION command after multiple blocks read/write. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_StopTransmission(sd_card_t *card); + +/*! + * @brief Send SET_BLOCK_SIZE command. + * + * @param card Card descriptor. + * @param blockSize Block size. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static inline status_t SD_SetBlockSize(sd_card_t *card, uint32_t blockSize); + +/*! + * @brief Send GET_RCA command to get card relative address. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_SendRca(sd_card_t *card); + +/*! + * @brief Send SWITCH_FUNCTION command to switch the card function group. + * + * @param card Card descriptor. + * @param mode 0 to check function group. 1 to switch function group + * @param group Function group + * @param number Function number in the function group. + * @param status Switch function status. + * @retval kStatus_SDMMC_SetCardBlockSizeFailed Set card block size failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_SwitchFunction(sd_card_t *card, uint32_t mode, uint32_t group, uint32_t number, uint32_t *status); + +/*! + * @brief Decode raw SCR register content in the data blocks. + * + * @param card Card descriptor. + * @param rawScr Raw SCR register content. + */ +static void SD_DecodeScr(sd_card_t *card, uint32_t *rawScr); + +/*! + * @brief Send GET_SCR command. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_SendApplicationCommandFailed Send application command failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_NotSupportYet Not support yet. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_SendScr(sd_card_t *card); + +/*! + * @brief Switch the card to be high speed mode. + * + * @param card Card descriptor. + * @param group Group number. + * @param functio Function number. + * @retval kStatus_SDMMC_CardNotSupport Card not support. + * @retval kStatus_SDMMC_SwitchFailed Switch failed. + * @retval kStatus_SDMMC_NotSupportYet Not support yet. + * @retval kStatus_Fail Switch failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_SelectFunction(sd_card_t *card, uint32_t group, uint32_t function); + +/*! + * @brief Send SET_DATA_WIDTH command to set SD bus width. + * + * @param card Card descriptor. + * @param width Data bus width. + * @retval kStatus_SDMMC_SendApplicationCommandFailed Send application command failed. + * @retval kStatus_InvalidArgument Invalid argument. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_SetDataBusWidth(sd_card_t *card, uint32_t width); + +/*! + * @brief Decode raw CSD register content in the data blocks. + * + * @param card Card descriptor. + * @param rawCsd Raw CSD register content. + */ +static void SD_DecodeCsd(sd_card_t *card, uint32_t *rawCsd); + +/*! + * @brief Send SEND_CSD command to get CSD register content from Card. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_SendCsd(sd_card_t *card); + +/*! + * @brief Decode raw CID register content in the data blocks. + * + * @param rawCid raw CID register content. + * @param card Card descriptor. + */ +static void SD_DecodeCid(sd_card_t *card, uint32_t *rawCid); + +/*! + * @brief Send GET_CID command to get CID from card. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_AllSendCid(sd_card_t *card); + +/*! + * @brief Send SEND_OPERATION_CONDITION command. + * + * This function sends host capacity support information and asks the accessed card to send its operating condition + * register content. + * + * @param card Card descriptor. + * @param argument The argument of the send operation condition ncomamnd. + * @retval kStatus_SDMMC_SendApplicationCommandFailed Send application command failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Timeout Timeout. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_ApplicationSendOperationCondition(sd_card_t *card, uint32_t argument); + +/*! + * @brief Send GET_INTERFACE_CONDITION command to get card interface condition. + * + * This function checks card interface condition, which includes host supply voltage information and asks the card + * whether card supports the specified host voltage. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_CardNotSupport Card doesn't support. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_SendInterfaceCondition(sd_card_t *card); + +#if SDMMCHOST_SUPPORT_DDR50 || SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 +/*! + * @brief Send switch voltage command + * switch card voltage to 1.8v + * + * @param card Card descriptor. + * @param voltage target voltage + */ +static status_t SD_SwitchVoltage(sd_card_t *card, sdmmc_operation_voltage_t voltage); +#endif + +/*! + * @brief select bus timing + * select card timing + * @param card Card descriptor. + */ +static status_t SD_SelectBusTiming(sd_card_t *card); + +/*! + * @brief Decode sd 512 bit status + * @param card Card descriptor. + * @param 512 bits satus raw data. + */ +static void SD_DecodeStatus(sd_card_t *card, uint32_t *src); + +/*! + * @brief Read data from specific SD card. + * + * @param card Card descriptor. + * @param buffer Buffer to save data blocks read. + * @param startBlock Card start block number to be read. + * @param blockSize Block size. + * @param blockCount Block count. + * @retval kStatus_SDMMC_CardNotSupport Card doesn't support. + * @retval kStatus_SDMMC_WaitWriteCompleteFailed Wait write complete failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_StopTransmissionFailed Stop transmission failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_Read(sd_card_t *card, uint8_t *buffer, uint32_t startBlock, uint32_t blockSize, uint32_t blockCount); + +/*! + * @brief Write data to specific card + * + * @param card Card descriptor. + * @param buffer Buffer to be sent. + * @param startBlock Card start block number to be written. + * @param blockSize Block size. + * @param blockCount Block count. + * @param writtenBlocks successfully write blocks + * @retval kStatus_SDMMC_CardNotSupport Card doesn't support. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_StopTransmissionFailed Stop transmission failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_Write(sd_card_t *card, + const uint8_t *buffer, + uint32_t startBlock, + uint32_t blockSize, + uint32_t blockCount, + uint32_t *writtenBlocks); + +/*! + * @brief Erase data for the given block range. + * + * @param card Card descriptor. + * @param startBlock Card start block number to be erased. + * @param blockCount The block count to be erased. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +static status_t SD_Erase(sd_card_t *card, uint32_t startBlock, uint32_t blockCount); + +/*! + * @brief card transfer function. + * + * @param card Card descriptor. + * @param content Transfer content. + * @param retry Retry times + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + * @retval kStatus_SDMMC_TuningFail tuning fail + */ +static status_t SD_Transfer(sd_card_t *card, sdmmchost_transfer_t *content, uint32_t retry); + +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 +/*! + * @brief card execute tuning function. + * + * @param card Card descriptor. + * @retval kStatus_Success Operate successfully. + * @retval kStatus_SDMMC_TuningFail tuning fail. + * @retval kStatus_SDMMC_TransferFailed transfer fail + */ +static inline status_t SD_ExecuteTuning(sd_card_t *card); +#endif + +/*! + * @brief Polling card idle status. + * + * @param card Card descriptor. + * @param sendStatusOnly true is polling the card status by CMD13 only, false is pooling the card status by CMD13 and + * DAT0. + * @param timeout polling card status timeout value. + * @retval kStatus_Success Operate successfully. + * @retval kStatus_SDMMC_WaitWriteCompleteFailed CMD13 transfer failed. + * @retval kStatus_SDMMC_PollingCardIdleFailed, polling card DAT0 idle failed. + */ +static status_t SD_PollingCardStatusBusy(sd_card_t *card, bool sendStatusOnly, uint32_t timeout); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*!@brief sd size map */ +static uint32_t s_sdAuSizeMap[] = {0, + 16 * 1024, + 32 * 1024, + 64 * 1024, + 128 * 1024, + 256 * 1024, + 512 * 1024, + 1024 * 1024, + 2 * 1024 * 1024, + 4 * 1024 * 1024, + 8 * 1024 * 1024, + 12 * 1024 * 1024, + 16 * 1024 * 1024, + 24 * 1024 * 1024, + 32 * 1024 * 1024, + 64 * 1024 * 1024}; +/******************************************************************************* + * Code + ******************************************************************************/ +static status_t SD_SendApplicationCmd(sd_card_t *card, uint32_t relativeAddress) +{ + assert(card != NULL); + + return SDMMC_SendApplicationCommand(card->host, relativeAddress); +} + +static status_t SD_GoIdle(sd_card_t *card) +{ + assert(card != NULL); + + return SDMMC_GoIdle(card->host); +} + +static status_t SD_SetBlockSize(sd_card_t *card, uint32_t blockSize) +{ + assert(card != NULL); + + return SDMMC_SetBlockSize(card->host, blockSize); +} + +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 +static status_t SD_ExecuteTuning(sd_card_t *card) +{ + assert(card != NULL); + + return SDMMCHOST_ExecuteTuning(card->host, (uint32_t)kSD_SendTuningBlock, + (uint32_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer), 64U); +} +#endif + +#if SDMMCHOST_SUPPORT_DDR50 || SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 +static status_t SD_SwitchVoltage(sd_card_t *card, sdmmc_operation_voltage_t voltage) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + status_t error = kStatus_Success; + + command.index = (uint32_t)kSD_VoltageSwitch; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR1; + + content.command = &command; + content.data = NULL; + if (kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content)) + { + return kStatus_SDMMC_TransferFailed; + } + + /* check data line and cmd line status */ + if (SDMMCHOST_GetSignalLineStatus(card->host, (uint32_t)kSDMMC_SignalLineData0 | (uint32_t)kSDMMC_SignalLineData1 | + (uint32_t)kSDMMC_SignalLineData2 | + (uint32_t)kSDMMC_SignalLineData3) != 0U) + { + return kStatus_SDMMC_SwitchVoltageFail; + } + + if (card->usrParam.ioVoltage->func != NULL) + { + card->usrParam.ioVoltage->func(voltage); + } + else + { + /* host switch to 1.8V */ + SDMMCHOST_SwitchToVoltage(card->host, (uint32_t)voltage); + } + + SDMMC_OSADelay(100U); + + /*enable force clock on*/ + SDMMCHOST_ForceClockOn(card->host, true); + /* dealy 1ms,not exactly correct when use while */ + SDMMC_OSADelay(10U); + /*disable force clock on*/ + SDMMCHOST_ForceClockOn(card->host, false); + + /* check data line and cmd line status */ + if (SDMMCHOST_GetSignalLineStatus(card->host, (uint32_t)kSDMMC_SignalLineData0 | (uint32_t)kSDMMC_SignalLineData1 | + (uint32_t)kSDMMC_SignalLineData2 | + (uint32_t)kSDMMC_SignalLineData3) == 0U) + { + error = kStatus_SDMMC_SwitchVoltageFail; + /* power reset the card */ + SD_SetCardPower(card, false); + SD_SetCardPower(card, true); + /* re-check the data line status */ + if (SDMMCHOST_GetSignalLineStatus( + card->host, (uint32_t)kSDMMC_SignalLineData0 | (uint32_t)kSDMMC_SignalLineData1 | + (uint32_t)kSDMMC_SignalLineData2 | (uint32_t)kSDMMC_SignalLineData3) != 0U) + { + error = kStatus_SDMMC_SwitchVoltage18VFail33VSuccess; + SDMMC_LOG("\r\nNote: Current card support 1.8V, but board don't support, so sdmmc switch back to 3.3V."); + } + else + { + SDMMC_LOG( + "\r\nError: Current card support 1.8V, but board don't support, sdmmc tried to switch back\ + to 3.3V, but failed, please check board setting."); + } + } + + return error; +} + +#endif + +static status_t SD_StopTransmission(sd_card_t *card) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + status_t error = kStatus_Success; + + command.index = (uint32_t)kSDMMC_StopTransmission; + command.argument = 0U; + command.type = kCARD_CommandTypeAbort; + command.responseType = kCARD_ResponseTypeR1b; + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG; + + content.command = &command; + content.data = NULL; + error = SDMMCHOST_TransferFunction(card->host, &content); + if (kStatus_Success != error) + { + SDMMC_LOG("\r\nError: send CMD12 failed with host error %d, reponse %x\r\n", error, command.response[0U]); + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +static status_t SD_Transfer(sd_card_t *card, sdmmchost_transfer_t *content, uint32_t retry) +{ + assert(content != NULL); + status_t error; +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 + uint32_t retuningCount = 3U; +#endif + + do + { + error = SDMMCHOST_TransferFunction(card->host, content); + if (error == kStatus_Success) + { + break; + } + + /* if transfer data failed, send cmd12 to abort current transfer */ + if (content->data != NULL) + { + (void)SD_StopTransmission(card); + /* when transfer error occur, polling card status until it is ready for next data transfer, otherwise the + * retry transfer will fail again */ + if (SD_PollingCardStatusBusy(card, false, 0) != kStatus_Success) + { + return kStatus_SDMMC_TransferFailed; + } + } + + if ((retry == 0U) +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 + || (error == kStatus_SDMMC_ReTuningRequest) +#endif + ) + { +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 + if ((card->currentTiming == kSD_TimingSDR50Mode) || (card->currentTiming == kSD_TimingSDR104Mode)) + { + if (--retuningCount == 0U) + { + break; + } + /* perform retuning */ + if (SD_ExecuteTuning(card) != kStatus_Success) + { + error = kStatus_SDMMC_TuningFail; + SDMMC_LOG("\r\nError: retuning failed."); + break; + } + else + { + SDMMC_LOG("\r\nlog: retuning successfully."); + continue; + } + } +#endif + } + + if (retry != 0U) + { + retry--; + } + else + { + break; + } + + } while (true); + + return error; +} + +static status_t SD_WaitWriteComplete(sd_card_t *card) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + status_t error = kStatus_Success; + uint32_t retry = SD_CMD13_RETRY_TIMES; + + command.index = (uint32_t)kSDMMC_SendStatus; + command.argument = card->relativeAddress << 16U; + command.responseType = kCARD_ResponseTypeR1; + + do + { + content.command = &command; + content.data = NULL; + error = SD_Transfer(card, &content, 3U); + if (kStatus_Success != error) + { + SDMMC_LOG("\r\nError: send CMD13 failed with host error %d, response %x", error, command.response[0U]); + break; + } + + if (((command.response[0U] & SDMMC_MASK(kSDMMC_R1ReadyForDataFlag)) != 0U) && + (SDMMC_R1_CURRENT_STATE(command.response[0U]) != (uint32_t)kSDMMC_R1StateProgram)) + { + break; + } + + retry--; + + } while (retry != 0U); + + return error; +} + +static status_t SD_PollingCardStatusBusy(sd_card_t *card, bool sendStatusOnly, uint32_t timeout) +{ + assert(card != NULL); + + uint32_t statusTimeout = timeout; + bool dat0Busy = false; + status_t error = kStatus_Success; + + /* Wait for the card write process complete because of that card read process and write process use one buffer. */ + error = SD_WaitWriteComplete(card); + if (kStatus_Success != error) + { + return kStatus_SDMMC_WaitWriteCompleteFailed; + } + + if (!sendStatusOnly) + { + do + { + dat0Busy = SDMMCHOST_IsCardBusy(card->host); + if (dat0Busy) + { + if (statusTimeout == 0U) + { + return kStatus_SDMMC_PollingCardIdleFailed; + } + else + { + SDMMC_OSADelay(1U); + statusTimeout--; + } + } + } while (dat0Busy); + } + + return kStatus_Success; +} + +static status_t SD_SendWriteSuccessBlocks(sd_card_t *card, uint32_t *blocks) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + sdmmchost_data_t data = {0}; + status_t error = kStatus_Success; + uint32_t *rawBuffer = (uint32_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + + (void)memset(rawBuffer, 0, 4U); + + /* Wait for the card write process complete because of that card read process and write process use one buffer. */ + if (kStatus_Success != SD_PollingCardStatusBusy(card, true, 0)) + { + return kStatus_SDMMC_WaitWriteCompleteFailed; + } + + if (kStatus_Success != SD_SendApplicationCmd(card, card->relativeAddress)) + { + return kStatus_SDMMC_SendApplicationCommandFailed; + } + + command.index = (uint32_t)kSD_ApplicationSendNumberWriteBlocks; + command.responseType = kCARD_ResponseTypeR1; + + data.blockSize = 4U; + data.blockCount = 1U; + data.rxData = rawBuffer; + + content.command = &command; + content.data = &data; + error = SDMMCHOST_TransferFunction(card->host, &content); + if ((kStatus_Success != error) || (((command.response[0U]) & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + SDMMC_LOG("\r\nError: send ACMD13 failed with host error %d, response %x", error, command.response[0U]); + } + else + { + *blocks = SWAP_WORD_BYTE_SEQUENCE(*rawBuffer); + } + + return error; +} + +static status_t SD_SendRca(sd_card_t *card) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + status_t error = kStatus_Success; + + command.index = (uint32_t)kSD_SendRelativeAddress; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR6; + + content.command = &command; + content.data = NULL; + + error = SDMMCHOST_TransferFunction(card->host, &content); + if (kStatus_Success == error) + { + card->relativeAddress = (command.response[0U] >> 16U); + } + else + { + SDMMC_LOG("\r\nError: send CMD3 failed with host error %d, response %x", error, command.response[0U]); + } + + return error; +} + +static status_t SD_SwitchFunction(sd_card_t *card, uint32_t mode, uint32_t group, uint32_t number, uint32_t *status) +{ + assert(card != NULL); + assert(status != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + sdmmchost_data_t data = {0}; + status_t error = kStatus_Success; + + command.index = (uint32_t)kSD_Switch; + command.argument = (mode << 31U | 0x00FFFFFFU); + command.argument &= ~((uint32_t)(0xFU) << (group * 4U)); + command.argument |= (number << (group * 4U)); + command.responseType = kCARD_ResponseTypeR1; + + data.blockSize = 64U; + data.blockCount = 1U; + data.rxData = status; + + content.command = &command; + content.data = &data; + error = SDMMCHOST_TransferFunction(card->host, &content); + if ((kStatus_Success != error) || (((command.response[0U]) & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + SDMMC_LOG("\r\n\r\nError: send CMD6 failed with host error %d, response %x", error, command.response[0U]); + } + + return error; +} + +static void SD_DecodeScr(sd_card_t *card, uint32_t *rawScr) +{ + assert(card != NULL); + assert(rawScr != NULL); + + sd_scr_t *scr; + + scr = &(card->scr); + scr->scrStructure = (uint8_t)((rawScr[0U] & 0xF0000000U) >> 28U); + scr->sdSpecification = (uint8_t)((rawScr[0U] & 0xF000000U) >> 24U); + if ((uint8_t)((rawScr[0U] & 0x800000U) >> 23U) != 0U) + { + scr->flags |= (uint16_t)kSD_ScrDataStatusAfterErase; + } + scr->sdSecurity = (uint8_t)((rawScr[0U] & 0x700000U) >> 20U); + scr->sdBusWidths = (uint8_t)((rawScr[0U] & 0xF0000U) >> 16U); + if ((uint8_t)((rawScr[0U] & 0x8000U) >> 15U) != 0U) + { + scr->flags |= (uint16_t)kSD_ScrSdSpecification3; + } + scr->extendedSecurity = (uint8_t)((rawScr[0U] & 0x7800U) >> 10U); + scr->commandSupport = (uint8_t)(rawScr[0U] & 0x3U); + scr->reservedForManufacturer = rawScr[1U]; + /* Get specification version. */ + if (scr->sdSpecification == 0U) + { + card->version = kSD_SpecificationVersion1_0; + } + else if (scr->sdSpecification == 1U) + { + card->version = kSD_SpecificationVersion1_1; + } + else if (scr->sdSpecification == 2U) + { + card->version = kSD_SpecificationVersion2_0; + if ((card->scr.flags & (uint32_t)kSD_ScrSdSpecification3) != 0U) + { + card->version = kSD_SpecificationVersion3_0; + } + } + else + { + /* reserved */ + } + + if ((card->scr.sdBusWidths & 0x4U) != 0U) + { + card->flags |= (uint32_t)kSD_Support4BitWidthFlag; + } + /* speed class control cmd */ + if ((card->scr.commandSupport & 0x01U) != 0U) + { + card->flags |= (uint32_t)kSD_SupportSpeedClassControlCmd; + } + /* set block count cmd */ + if ((card->scr.commandSupport & 0x02U) != 0U) + { + card->flags |= (uint32_t)kSD_SupportSetBlockCountCmd; + } +} + +static status_t SD_SendScr(sd_card_t *card) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + sdmmchost_data_t data = {0}; + uint32_t *rawScr = (uint32_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + status_t error = kStatus_Success; + + /* memset the global buffer */ + (void)memset(rawScr, 0, 8U); + + if (kStatus_Success != SD_SendApplicationCmd(card, card->relativeAddress)) + { + return kStatus_SDMMC_SendApplicationCommandFailed; + } + + command.index = (uint32_t)kSD_ApplicationSendScr; + command.responseType = kCARD_ResponseTypeR1; + command.argument = 0U; + + data.blockSize = 8U; + data.blockCount = 1U; + data.rxData = rawScr; + + content.data = &data; + content.command = &command; + error = SDMMCHOST_TransferFunction(card->host, &content); + if ((kStatus_Success != error) || (((command.response[0U]) & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + SDMMC_LOG("\r\nError: send ACMD51 failed with host error %d, response %x", error, command.response[0U]); + } + else + { + /* SCR register data byte sequence from card is big endian(MSB first). */ + if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeLittle) + { + /* In little endian mode, SD bus byte transferred first is the byte stored in lowest byte position in a + word which will cause 4 byte's sequence in a word is not consistent with their original sequence from + card. So the sequence of 4 bytes received in a word should be converted. */ + rawScr[0U] = SWAP_WORD_BYTE_SEQUENCE(rawScr[0U]); + rawScr[1U] = SWAP_WORD_BYTE_SEQUENCE(rawScr[1U]); + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeHalfWordBig) + { + rawScr[0U] = SWAP_HALF_WROD_BYTE_SEQUENCE(rawScr[0U]); + rawScr[1U] = SWAP_HALF_WROD_BYTE_SEQUENCE(rawScr[1U]); + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeBig) + { + /* nothing to do */ + } + else + { + return kStatus_SDMMC_NotSupportYet; + } + + /* decode scr */ + SD_DecodeScr(card, rawScr); + } + + return error; +} + +static status_t SD_SelectFunction(sd_card_t *card, uint32_t group, uint32_t function) +{ + assert(card != NULL); + + uint32_t *functionStatus = (uint32_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + uint16_t functionGroupInfo[6U] = {0}; + uint32_t currentFunctionStatus = 0U; + status_t error = kStatus_Success; + + /* memset the global buffer */ + (void)memset(functionStatus, 0, 64U); + + /* check if card support CMD6 */ + if ((card->version <= (uint32_t)kSD_SpecificationVersion1_0) || + (0U == (card->csd.cardCommandClass & (uint32_t)kSDMMC_CommandClassSwitch))) + { + SDMMC_LOG("\r\nError: current card not support CMD6"); + return kStatus_SDMMC_NotSupportYet; + } + + error = SD_SwitchFunction(card, (uint32_t)kSD_SwitchCheck, group, function, functionStatus); + /* Check if card support high speed mode. */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeLittle) + { + /* In little endian mode, SD bus byte transferred first is the byte stored in lowest byte position in + a word which will cause 4 byte's sequence in a word is not consistent with their original sequence from + card. So the sequence of 4 bytes received in a word should be converted. */ + functionStatus[0U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[0U]); + functionStatus[1U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[1U]); + functionStatus[2U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[2U]); + functionStatus[3U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[3U]); + functionStatus[4U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[4U]); + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeHalfWordBig) + { + functionStatus[0U] = SWAP_HALF_WROD_BYTE_SEQUENCE(functionStatus[0U]); + functionStatus[1U] = SWAP_HALF_WROD_BYTE_SEQUENCE(functionStatus[1U]); + functionStatus[2U] = SWAP_HALF_WROD_BYTE_SEQUENCE(functionStatus[2U]); + functionStatus[3U] = SWAP_HALF_WROD_BYTE_SEQUENCE(functionStatus[3U]); + functionStatus[4U] = SWAP_HALF_WROD_BYTE_SEQUENCE(functionStatus[4U]); + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeBig) + { + /* nothing to do */ + } + else + { + return kStatus_SDMMC_NotSupportYet; + } + + /* -functionStatus[0U]---bit511~bit480; + -functionStatus[1U]---bit479~bit448; + -functionStatus[2U]---bit447~bit416; + -functionStatus[3U]---bit415~bit384; + -functionStatus[4U]---bit383~bit352; + According to the "switch function status[bits 511~0]" return by switch command in mode "check function": + -Check if function 1(high speed) in function group 1 is supported by checking if bit 401 is set; + -check if function 1 is ready and can be switched by checking if bits 379~376 equal value 1; + */ + functionGroupInfo[5U] = (uint16_t)functionStatus[0U]; + functionGroupInfo[4U] = (uint16_t)(functionStatus[1U] >> 16U); + functionGroupInfo[3U] = (uint16_t)(functionStatus[1U]); + functionGroupInfo[2U] = (uint16_t)(functionStatus[2U] >> 16U); + functionGroupInfo[1U] = (uint16_t)(functionStatus[2U]); + functionGroupInfo[0U] = (uint16_t)(functionStatus[3U] >> 16U); + currentFunctionStatus = ((functionStatus[3U] & 0xFFU) << 8U) | (functionStatus[4U] >> 24U); + + /* check if function is support */ + if (((functionGroupInfo[group] & (1UL << function)) == 0U) || + ((currentFunctionStatus >> (group * 4U)) & 0xFU) != function) + { + SDMMC_LOG("\r\nError: current card not support function %d", function); + return kStatus_SDMMC_NotSupportYet; + } + + error = SD_SwitchFunction(card, (uint32_t)kSD_SwitchSet, group, function, functionStatus); + /* Switch to high speed mode. */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeLittle) + { + /* In little endian mode is little endian, SD bus byte transferred first is the byte stored in lowest byte + position in a word which will cause 4 byte's sequence in a word is not consistent with their original + sequence from card. So the sequence of 4 bytes received in a word should be converted. */ + functionStatus[3U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[3U]); + functionStatus[4U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[4U]); + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeHalfWordBig) + { + functionStatus[3U] = SWAP_HALF_WROD_BYTE_SEQUENCE(functionStatus[3U]); + functionStatus[4U] = SWAP_HALF_WROD_BYTE_SEQUENCE(functionStatus[4U]); + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeBig) + { + /* Doesn't need to switch byte sequence when decodes bytes as big endian sequence */ + } + else + { + return kStatus_SDMMC_NotSupportYet; + } + + /* According to the "switch function status[bits 511~0]" return by switch command in mode "set function": + -check if group 1 is successfully changed to function 1 by checking if bits 379~376 equal value 1; + */ + currentFunctionStatus = ((functionStatus[3U] & 0xFFU) << 8U) | (functionStatus[4U] >> 24U); + + if (((currentFunctionStatus >> (group * 4U)) & 0xFU) != function) + { + SDMMC_LOG("\r\nError: switch to function %d failed", function); + return kStatus_SDMMC_SwitchFailed; + } + + return kStatus_Success; +} + +static status_t SD_SetDataBusWidth(sd_card_t *card, uint32_t width) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + status_t error = kStatus_Success; + + if (kStatus_Success != SD_SendApplicationCmd(card, card->relativeAddress)) + { + return kStatus_SDMMC_SendApplicationCommandFailed; + } + + command.index = (uint32_t)kSD_ApplicationSetBusWdith; + command.responseType = kCARD_ResponseTypeR1; + + if (width == (uint32_t)kSDMMC_BusWdith1Bit) + { + command.argument = 0U; + } + else if (width == (uint32_t)kSDMMC_BusWdith4Bit) + { + command.argument = 2U; + } + else + { + return kStatus_InvalidArgument; + } + + content.command = &command; + content.data = NULL; + error = SDMMCHOST_TransferFunction(card->host, &content); + if ((kStatus_Success != error) || (((command.response[0U]) & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + SDMMC_LOG("\r\nError: send ACMD6 failed with host error %d, response %x", error, command.response[0U]); + } + + return error; +} + +static void SD_DecodeCsd(sd_card_t *card, uint32_t *rawCsd) +{ + assert(card != NULL); + assert(rawCsd != NULL); + + sd_csd_t *csd; + + csd = &(card->csd); + csd->csdStructure = (uint8_t)((rawCsd[3U] & 0xC0000000U) >> 30U); + csd->dataReadAccessTime1 = (uint8_t)((rawCsd[3U] & 0xFF0000U) >> 16U); + csd->dataReadAccessTime2 = (uint8_t)((rawCsd[3U] & 0xFF00U) >> 8U); + csd->transferSpeed = (uint8_t)(rawCsd[3U] & 0xFFU); + csd->cardCommandClass = (uint16_t)((rawCsd[2U] & 0xFFF00000U) >> 20U); + csd->readBlockLength = (uint8_t)((rawCsd[2U] & 0xF0000U) >> 16U); + if ((rawCsd[2U] & 0x8000U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdReadBlockPartialFlag; + } + if ((rawCsd[2U] & 0x4000U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdReadBlockPartialFlag; + } + if ((rawCsd[2U] & 0x2000U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdReadBlockMisalignFlag; + } + if ((rawCsd[2U] & 0x1000U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdDsrImplementedFlag; + } + if (csd->csdStructure == 0U) + { + csd->deviceSize = (uint32_t)((rawCsd[2U] & 0x3FFU) << 2U); + csd->deviceSize |= (uint32_t)((rawCsd[1U] & 0xC0000000U) >> 30U); + csd->readCurrentVddMin = (uint8_t)((rawCsd[1U] & 0x38000000U) >> 27U); + csd->readCurrentVddMax = (uint8_t)((rawCsd[1U] & 0x7000000U) >> 24U); + csd->writeCurrentVddMin = (uint8_t)((rawCsd[1U] & 0xE00000U) >> 20U); + csd->writeCurrentVddMax = (uint8_t)((rawCsd[1U] & 0x1C0000U) >> 18U); + csd->deviceSizeMultiplier = (uint8_t)((rawCsd[1U] & 0x38000U) >> 15U); + + /* Get card total block count and block size. */ + card->blockCount = ((csd->deviceSize + 1U) << (csd->deviceSizeMultiplier + 2U)); + card->blockSize = (1UL << (csd->readBlockLength)); + if (card->blockSize != FSL_SDMMC_DEFAULT_BLOCK_SIZE) + { + card->blockCount = (card->blockCount * card->blockSize); + card->blockSize = FSL_SDMMC_DEFAULT_BLOCK_SIZE; + card->blockCount = (card->blockCount / card->blockSize); + } + } + else if (csd->csdStructure == 1U) + { + card->blockSize = FSL_SDMMC_DEFAULT_BLOCK_SIZE; + + csd->deviceSize = (uint32_t)((rawCsd[2U] & 0x3FU) << 16U); + csd->deviceSize |= (uint32_t)((rawCsd[1U] & 0xFFFF0000U) >> 16U); + if (csd->deviceSize >= 0xFFFFU) + { + card->flags |= (uint32_t)kSD_SupportSdxcFlag; + } + + card->blockCount = ((csd->deviceSize + 1U) * 1024U); + } + else + { + /* not support csd version */ + } + + if ((uint8_t)((rawCsd[1U] & 0x4000U) >> 14U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdEraseBlockEnabledFlag; + } + csd->eraseSectorSize = (uint8_t)((rawCsd[1U] & 0x3F80U) >> 7U); + csd->writeProtectGroupSize = (uint8_t)(rawCsd[1U] & 0x7FU); + if ((uint8_t)(rawCsd[0U] & 0x80000000U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdWriteProtectGroupEnabledFlag; + } + csd->writeSpeedFactor = (uint8_t)((rawCsd[0U] & 0x1C000000U) >> 26U); + csd->writeBlockLength = (uint8_t)((rawCsd[0U] & 0x3C00000U) >> 22U); + if ((uint8_t)((rawCsd[0U] & 0x200000U) >> 21U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdWriteBlockPartialFlag; + } + if ((uint8_t)((rawCsd[0U] & 0x8000U) >> 15U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdFileFormatGroupFlag; + } + if ((uint8_t)((rawCsd[0U] & 0x4000U) >> 14U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdCopyFlag; + } + if ((uint8_t)((rawCsd[0U] & 0x2000U) >> 13U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdPermanentWriteProtectFlag; + } + if ((uint8_t)((rawCsd[0U] & 0x1000U) >> 12U) != 0U) + { + csd->flags |= (uint16_t)kSD_CsdTemporaryWriteProtectFlag; + } + csd->fileFormat = (uint8_t)((rawCsd[0U] & 0xC00U) >> 10U); +} + +static status_t SD_SendCsd(sd_card_t *card) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + status_t error = kStatus_Success; + + command.index = (uint32_t)kSDMMC_SendCsd; + command.argument = (card->relativeAddress << 16U); + command.responseType = kCARD_ResponseTypeR2; + + content.command = &command; + content.data = NULL; + error = SDMMCHOST_TransferFunction(card->host, &content); + if (kStatus_Success == error) + { + (void)memcpy(card->internalBuffer, (uint8_t *)command.response, 16U); + /* The response is from bit 127:8 in R2, corrisponding to command.response[3U]:command.response[0U][31U:8]. */ + SD_DecodeCsd(card, (uint32_t *)(uint32_t)card->internalBuffer); + } + else + { + error = kStatus_SDMMC_TransferFailed; + SDMMC_LOG("\r\nError: send CMD9(get csd) failed with host error %d, response %x", error, command.response[0U]); + } + + return error; +} + +static void SD_DecodeCid(sd_card_t *card, uint32_t *rawCid) +{ + assert(card != NULL); + assert(rawCid != NULL); + + sd_cid_t *cid; + + cid = &(card->cid); + cid->manufacturerID = (uint8_t)((rawCid[3U] & 0xFF000000U) >> 24U); + cid->applicationID = (uint16_t)((rawCid[3U] & 0xFFFF00U) >> 8U); + + cid->productName[0U] = (uint8_t)((rawCid[3U] & 0xFFU)); + cid->productName[1U] = (uint8_t)((rawCid[2U] & 0xFF000000U) >> 24U); + cid->productName[2U] = (uint8_t)((rawCid[2U] & 0xFF0000U) >> 16U); + cid->productName[3U] = (uint8_t)((rawCid[2U] & 0xFF00U) >> 8U); + cid->productName[4U] = (uint8_t)((rawCid[2U] & 0xFFU)); + + cid->productVersion = (uint8_t)((rawCid[1U] & 0xFF000000U) >> 24U); + + cid->productSerialNumber = (uint32_t)((rawCid[1U] & 0xFFFFFFU) << 8U); + cid->productSerialNumber |= (uint32_t)((rawCid[0U] & 0xFF000000U) >> 24U); + + cid->manufacturerData = (uint16_t)((rawCid[0U] & 0xFFF00U) >> 8U); +} + +static status_t SD_AllSendCid(sd_card_t *card) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDMMC_AllSendCid; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR2; + + content.command = &command; + content.data = NULL; + if (kStatus_Success == SDMMCHOST_TransferFunction(card->host, &content)) + { + (void)memcpy(card->internalBuffer, (uint8_t *)command.response, 16U); + SD_DecodeCid(card, (uint32_t *)(uint32_t)card->internalBuffer); + + return kStatus_Success; + } + + return kStatus_SDMMC_TransferFailed; +} + +static status_t SD_ApplicationSendOperationCondition(sd_card_t *card, uint32_t argument) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + status_t error = kStatus_Fail; + uint32_t i = FSL_SDMMC_MAX_VOLTAGE_RETRIES; + + command.index = (uint32_t)kSD_ApplicationSendOperationCondition; + command.argument = argument; + command.responseType = kCARD_ResponseTypeR3; + + while (0U != i--) + { + if (kStatus_Success != SD_SendApplicationCmd(card, 0U)) + { + continue; + } + + content.command = &command; + content.data = NULL; + error = SDMMCHOST_TransferFunction(card->host, &content); + if (kStatus_Success != error) + { + SDMMC_LOG("\r\nError: send ACMD41 failed with host error %d, response %x", error, command.response[0U]); + return kStatus_SDMMC_TransferFailed; + } + + /* Wait until card exit busy state. */ + if ((command.response[0U] & SDMMC_MASK(kSD_OcrPowerUpBusyFlag)) != 0U) + { + /* high capacity check */ + if ((command.response[0U] & SDMMC_MASK(kSD_OcrCardCapacitySupportFlag)) != 0U) + { + card->flags |= (uint32_t)kSD_SupportHighCapacityFlag; + } + /* 1.8V support */ + if ((command.response[0U] & SDMMC_MASK(kSD_OcrSwitch18AcceptFlag)) != 0U) + { + card->flags |= (uint32_t)kSD_SupportVoltage180v; + } + card->ocr = command.response[0U]; + + return kStatus_Success; + } + + SDMMC_OSADelay(10U); + } + + SDMMC_LOG("\r\nError: send ACMD41 timeout"); + + return error; +} + +static status_t SD_SendInterfaceCondition(sd_card_t *card) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + uint32_t i = FSL_SDMMC_MAX_CMD_RETRIES; + status_t error = kStatus_Success; + + command.index = (uint32_t)kSD_SendInterfaceCondition; + command.argument = 0x1AAU; + command.responseType = kCARD_ResponseTypeR7; + + content.command = &command; + content.data = NULL; + do + { + error = SDMMCHOST_TransferFunction(card->host, &content); + if (kStatus_Success != error) + { + SDMMC_LOG("\r\nError: send CMD8 failed with host error %d, response %x", error, command.response[0U]); + } + else + { + if ((command.response[0U] & 0xFFU) != 0xAAU) + { + error = kStatus_SDMMC_CardNotSupport; + SDMMC_LOG("\r\nError: card not support CMD8"); + } + else + { + error = kStatus_Success; + } + } + } while ((--i != 0U) && (error != kStatus_Success)); + + return error; +} + +static status_t SD_SelectBusTiming(sd_card_t *card) +{ + assert(card != NULL); + + status_t error = kStatus_SDMMC_SwitchBusTimingFailed; + + if (card->operationVoltage != kSDMMC_OperationVoltage180V) + { + /* group 1, function 1 ->high speed mode*/ + error = SD_SelectFunction(card, kSD_GroupTimingMode, kSD_FunctionSDR25HighSpeed); + /* If the result isn't "switching to high speed mode(50MHZ) successfully or card doesn't support high speed + * mode". Return failed status. */ + if (error == kStatus_Success) + { + card->currentTiming = kSD_TimingSDR25HighSpeedMode; + card->busClock_Hz = + SDMMCHOST_SetCardClock(card->host, FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_50MHZ)); + } + else + { + if (error == kStatus_SDMMC_NotSupportYet) + { + /* if not support high speed, keep the card work at default mode */ + SDMMC_LOG("\r\nNote: High speed mode is not supported by card"); + return kStatus_Success; + } + } + } + /* card is in UHS_I mode */ + else + { + switch (card->currentTiming) + { + /* if not select timing mode, sdmmc will handle it automatically*/ + case kSD_TimingSDR12DefaultMode: +#if SDMMCHOST_SUPPORT_SDR104 + case kSD_TimingSDR104Mode: + if (SDMMCHOST_INSTANCE_SUPPORT_SDR104(card->host) != 0) + { + error = SD_SelectFunction(card, kSD_GroupTimingMode, kSD_FunctionSDR104); + if (error == kStatus_Success) + { + card->currentTiming = kSD_TimingSDR104Mode; + card->busClock_Hz = SDMMCHOST_SetCardClock( + card->host, FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_208MHZ)); + break; + } + } + SUPPRESS_FALL_THROUGH_WARNING(); + SDMMC_LOG("\r\nNote: SDR104 mode is not supported"); +#endif +#if SDMMCHOST_SUPPORT_DDR50 + case kSD_TimingDDR50Mode: + if (SDMMCHOST_INSTANCE_SUPPORT_DDR50(card->host) != 0) + { + error = SD_SelectFunction(card, kSD_GroupTimingMode, kSD_FunctionDDR50); + if (error == kStatus_Success) + { + card->currentTiming = kSD_TimingDDR50Mode; + card->busClock_Hz = SDMMCHOST_SetCardClock( + card->host, FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_50MHZ)); + SDMMCHOST_EnableDDRMode(card->host, true, 0U); + break; + } + } + SUPPRESS_FALL_THROUGH_WARNING(); + SDMMC_LOG("\r\nNote: DDR50 mode is not supported"); +#endif +#if SDMMCHOST_SUPPORT_SDR50 + case kSD_TimingSDR50Mode: + if (SDMMCHOST_INSTANCE_SUPPORT_SDR50(card->host) != 0) + { + error = SD_SelectFunction(card, kSD_GroupTimingMode, kSD_FunctionSDR50); + if (error == kStatus_Success) + { + card->currentTiming = kSD_TimingSDR50Mode; + card->busClock_Hz = SDMMCHOST_SetCardClock( + card->host, FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_100MHZ)); + break; + } + } + SUPPRESS_FALL_THROUGH_WARNING(); + SDMMC_LOG("\r\nNote: SDR50 mode is not supported"); +#endif + case kSD_TimingSDR25HighSpeedMode: + error = SD_SelectFunction(card, kSD_GroupTimingMode, kSD_FunctionSDR25HighSpeed); + if (error == kStatus_Success) + { + card->currentTiming = kSD_TimingSDR25HighSpeedMode; + card->busClock_Hz = SDMMCHOST_SetCardClock( + card->host, FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_50MHZ)); + } + break; + + default: + SDMMC_LOG("\r\nWarning: unknown timing mode"); + break; + } + } + +#if SDMMCHOST_SUPPORT_SDR50 + if (error == kStatus_Success) + { + /* SDR50 and SDR104 mode need tuning */ + if ((card->currentTiming == kSD_TimingSDR50Mode) || (card->currentTiming == kSD_TimingSDR104Mode)) + { + /* set default IO strength to 4 to cover card adapter driver strength difference */ + if (card->usrParam.ioStrength != NULL) + { + card->usrParam.ioStrength(card->busClock_Hz); + } + + /* execute tuning */ + if (SD_ExecuteTuning(card) != kStatus_Success) + { + SDMMC_LOG("\r\nError: tuning failed for mode %d", card->currentTiming); + return kStatus_SDMMC_TuningFail; + } + } + } +#endif + + return error; +} + +static void SD_DecodeStatus(sd_card_t *card, uint32_t *src) +{ + assert(card != NULL); + assert(src != NULL); + + card->stat.busWidth = (uint8_t)((src[0U] & 0xC0000000U) >> 30U); /* 511-510 */ + card->stat.secureMode = (uint8_t)((src[0U] & 0x20000000U) >> 29U); /* 509 */ + card->stat.cardType = (uint16_t)((src[0U] & 0x0000FFFFU)); /* 495-480 */ + card->stat.protectedSize = src[1U]; /* 479-448 */ + card->stat.speedClass = (uint8_t)((src[2U] & 0xFF000000U) >> 24U); /* 447-440 */ + card->stat.performanceMove = (uint8_t)((src[2U] & 0x00FF0000U) >> 16U); /* 439-432 */ + card->stat.auSize = (uint8_t)((src[2U] & 0x0000F000U) >> 12U); /* 431-428 */ + card->stat.eraseSize = (uint16_t)(((src[2U] & 0x000000FFU) << 8U) | ((src[3U] & 0xFF000000U) >> 24U)); /* 423-408 */ + card->stat.eraseTimeout = (((uint8_t)((src[3U] & 0x00FF0000U) >> 16U)) & 0xFCU) >> 2U; /* 407-402 */ + card->stat.eraseOffset = ((uint8_t)((src[3U] & 0x00FF0000U) >> 16U)) & 0x3U; /* 401-400 */ + card->stat.uhsSpeedGrade = (((uint8_t)((src[3U] & 0x0000FF00U) >> 8U)) & 0xF0U) >> 4U; /* 399-396 */ + card->stat.uhsAuSize = ((uint8_t)((src[3U] & 0x0000FF00U) >> 8U)) & 0xFU; /* 395-392 */ +} + +status_t SD_ReadStatus(sd_card_t *card) +{ + assert(card != NULL); + + uint32_t i = 0U; + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + sdmmchost_data_t data = {0}; + status_t error = kStatus_Success; + uint32_t *rawPointer = (uint32_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + + (void)memset(rawPointer, 0, 64U); + + /* wait card status ready. */ + if (kStatus_Success != SD_PollingCardStatusBusy(card, true, 0)) + { + return kStatus_SDMMC_WaitWriteCompleteFailed; + } + + if (kStatus_Success != SD_SendApplicationCmd(card, card->relativeAddress)) + { + return kStatus_SDMMC_SendApplicationCommandFailed; + } + + command.index = (uint32_t)kSDMMC_SendStatus; + command.responseType = kCARD_ResponseTypeR1; + + data.blockSize = 64U; + data.blockCount = 1U; + data.rxData = rawPointer; + + content.command = &command; + content.data = &data; + error = SDMMCHOST_TransferFunction(card->host, &content); + if ((kStatus_Success != error) || (((command.response[0U]) & SDMMC_R1_ALL_ERROR_FLAG) != 0U)) + { + SDMMC_LOG("\r\nError: send ACMD13 failed with host error %d, response %x", error, command.response[0U]); + + return kStatus_SDMMC_TransferFailed; + } + + if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeLittle) + { + /* In little endian mode, SD bus byte transferred first is the byte stored in lowest byte position in + a word which will cause 4 byte's sequence in a word is not consistent with their original sequence from + card. So the sequence of 4 bytes received in a word should be converted. */ + for (i = 0U; i < 16U; i++) + { + rawPointer[i] = SWAP_WORD_BYTE_SEQUENCE(rawPointer[i]); + } + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeBig) + { + /* Doesn't need to switch byte sequence when decodes bytes as big endian sequence. */ + } + else if ((uint32_t)card->host->hostController.config.endianMode == (uint32_t)kSDMMCHOST_EndianModeHalfWordBig) + { + for (i = 0U; i < 16U; i++) + { + rawPointer[i] = SWAP_HALF_WROD_BYTE_SEQUENCE(rawPointer[i]); + } + } + else + { + return kStatus_SDMMC_NotSupportYet; + } + + SD_DecodeStatus(card, rawPointer); + + return kStatus_Success; +} + +status_t SD_SelectCard(sd_card_t *card, bool isSelected) +{ + assert(card != NULL); + + return SDMMC_SelectCard(card->host, card->relativeAddress, isSelected); +} + +status_t SD_SetDriverStrength(sd_card_t *card, sd_driver_strength_t driverStrength) +{ + assert(card != NULL); + + status_t error; + uint32_t strength = (uint32_t)driverStrength; + + error = SD_SelectFunction(card, kSD_GroupDriverStrength, strength); + + return error; +} + +status_t SD_SetMaxCurrent(sd_card_t *card, sd_max_current_t maxCurrent) +{ + assert(card != NULL); + + status_t error; + uint32_t current = (uint32_t)maxCurrent; + + error = SD_SelectFunction(card, kSD_GroupCurrentLimit, current); + + return error; +} + +static status_t SD_Read(sd_card_t *card, uint8_t *buffer, uint32_t startBlock, uint32_t blockSize, uint32_t blockCount) +{ + assert(card != NULL); + assert(buffer != NULL); + assert(blockCount != 0U); + assert(blockSize == FSL_SDMMC_DEFAULT_BLOCK_SIZE); + status_t error = kStatus_Success; + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + sdmmchost_data_t data = {0}; + + if ((((card->flags & (uint32_t)kSD_SupportHighCapacityFlag) != 0U) && (blockSize != 512U)) || + (blockSize > card->blockSize) || (blockSize > SDMMCHOST_SUPPORT_MAX_BLOCK_LENGTH) || ((blockSize % 4U) != 0U)) + { + SDMMC_LOG("\r\nError: read with parameter, block size %d is not support", blockSize); + return kStatus_SDMMC_CardNotSupport; + } + + /* check card status for not busy*/ + if (kStatus_Success != SD_PollingCardStatusBusy(card, true, 0)) + { + return kStatus_SDMMC_WaitWriteCompleteFailed; + } + + data.blockSize = blockSize; + data.blockCount = blockCount; + data.rxData = (uint32_t *)(uint32_t)buffer; + data.enableAutoCommand12 = true; + + command.index = (blockCount == 1U) ? (uint32_t)kSDMMC_ReadSingleBlock : (uint32_t)kSDMMC_ReadMultipleBlock; + command.argument = startBlock; + if (0U == (card->flags & (uint32_t)kSD_SupportHighCapacityFlag)) + { + command.argument *= data.blockSize; + } + command.responseType = kCARD_ResponseTypeR1; + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG; + + content.command = &command; + content.data = &data; + + error = SD_Transfer(card, &content, 3U); + + return error; +} + +static status_t SD_Write(sd_card_t *card, + const uint8_t *buffer, + uint32_t startBlock, + uint32_t blockSize, + uint32_t blockCount, + uint32_t *writtenBlocks) +{ + assert(card != NULL); + assert(buffer != NULL); + assert(blockCount != 0U); + assert(blockSize == FSL_SDMMC_DEFAULT_BLOCK_SIZE); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + sdmmchost_data_t data = {0}; + status_t error; + + if ((((card->flags & (uint32_t)kSD_SupportHighCapacityFlag) != 0U) && (blockSize != 512U)) || + (blockSize > card->blockSize) || (blockSize > SDMMCHOST_SUPPORT_MAX_BLOCK_LENGTH) || ((blockSize % 4U) != 0U)) + { + SDMMC_LOG("\r\nError: write with parameter, block size %d is not support", blockSize); + return kStatus_SDMMC_CardNotSupport; + } + + /* check card status for not busy*/ + if (kStatus_Success != SD_PollingCardStatusBusy(card, false, SD_CARD_ACCESS_WAIT_IDLE_TIMEOUT)) + { + return kStatus_SDMMC_WaitWriteCompleteFailed; + } + + data.enableAutoCommand12 = true; + data.blockSize = blockSize; + command.responseType = kCARD_ResponseTypeR1; + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG; + + command.index = (blockCount == 1U) ? (uint32_t)kSDMMC_WriteSingleBlock : (uint32_t)kSDMMC_WriteMultipleBlock; + command.argument = startBlock; + if (0U == (card->flags & (uint32_t)kSD_SupportHighCapacityFlag)) + { + command.argument *= data.blockSize; + } + + *writtenBlocks = blockCount; + data.blockCount = blockCount; + data.txData = (const uint32_t *)(uint32_t)buffer; + + content.command = &command; + content.data = &data; + + error = SD_Transfer(card, &content, 3U); + if (error != kStatus_Success) + { + error = SD_SendWriteSuccessBlocks(card, writtenBlocks); + /* check the successfully written block */ + if (error == kStatus_Success) + { + if (*writtenBlocks != 0U) + { + /* written success, but not all the blocks are written */ + error = kStatus_Success; + } + } + SDMMC_LOG("\r\nWarning: write failed with block count %d, successed %d", blockCount, *writtenBlocks); + } + + return error; +} + +static status_t SD_Erase(sd_card_t *card, uint32_t startBlock, uint32_t blockCount) +{ + assert(card != NULL); + assert(blockCount != 0U); + + uint32_t eraseBlockStart; + uint32_t eraseBlockEnd; + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + status_t error = kStatus_Success; + + /* check card status for not busy*/ + if (kStatus_Success != SD_PollingCardStatusBusy(card, false, SD_CARD_ACCESS_WAIT_IDLE_TIMEOUT)) + { + return kStatus_SDMMC_WaitWriteCompleteFailed; + } + + eraseBlockStart = startBlock; + eraseBlockEnd = eraseBlockStart + blockCount - 1U; + if (0U == (card->flags & (uint32_t)kSD_SupportHighCapacityFlag)) + { + eraseBlockStart = eraseBlockStart * FSL_SDMMC_DEFAULT_BLOCK_SIZE; + eraseBlockEnd = eraseBlockEnd * FSL_SDMMC_DEFAULT_BLOCK_SIZE; + } + + /* Send ERASE_WRITE_BLOCK_START command to set the start block number to erase. */ + command.index = (uint32_t)kSD_EraseWriteBlockStart; + command.argument = eraseBlockStart; + command.responseType = kCARD_ResponseTypeR1; + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG; + + content.command = &command; + content.data = NULL; + error = SD_Transfer(card, &content, 1U); + if (kStatus_Success != error) + { + SDMMC_LOG("\r\nError: send CMD32(erase start) failed with host error %d, response %x", error, + command.response[0U]); + return kStatus_SDMMC_TransferFailed; + } + + /* Send ERASE_WRITE_BLOCK_END command to set the end block number to erase. */ + command.index = (uint32_t)kSD_EraseWriteBlockEnd; + command.argument = eraseBlockEnd; + + content.command = &command; + content.data = NULL; + error = SD_Transfer(card, &content, 0U); + if (kStatus_Success != error) + { + SDMMC_LOG("\r\nError: send CMD33(erase end) failed with host error %d, response %x", error, + command.response[0U]); + return kStatus_SDMMC_TransferFailed; + } + + /* Send ERASE command to start erase process. */ + command.index = (uint32_t)kSDMMC_Erase; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR1b; + command.responseErrorFlags = SDMMC_R1_ALL_ERROR_FLAG; + + content.command = &command; + content.data = NULL; + error = SD_Transfer(card, &content, 0U); + if (kStatus_Success != error) + { + SDMMC_LOG("\r\nError: send CMD38(erase) failed with host error %d, response %x", error, command.response[0U]); + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +bool SD_CheckReadOnly(sd_card_t *card) +{ + assert(card != NULL); + + return (((card->csd.flags & (uint16_t)kSD_CsdPermanentWriteProtectFlag) != 0U) || + ((card->csd.flags & (uint16_t)kSD_CsdTemporaryWriteProtectFlag)) != 0U); +} + +status_t SD_ReadBlocks(sd_card_t *card, uint8_t *buffer, uint32_t startBlock, uint32_t blockCount) +{ + assert(card != NULL); + assert(buffer != NULL); + assert(blockCount != 0U); + assert((blockCount + startBlock) <= card->blockCount); + + uint32_t blockCountOneTime; + uint32_t blockLeft; + uint32_t blockDone = 0U; + uint8_t *nextBuffer = buffer; + bool dataAddrAlign = true; + uint8_t *alignBuffer = (uint8_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + status_t error = kStatus_Success; + + blockLeft = blockCount; + + while (blockLeft != 0U) + { + nextBuffer = (uint8_t *)((uint32_t)buffer + blockDone * FSL_SDMMC_DEFAULT_BLOCK_SIZE); + if ((!card->noInteralAlign) && (!dataAddrAlign || ((((uint32_t)nextBuffer) & (sizeof(uint32_t) - 1U)) != 0U))) + { + blockCountOneTime = 1; + (void)memset(alignBuffer, 0, FSL_SDMMC_DEFAULT_BLOCK_SIZE); + dataAddrAlign = false; + blockLeft -= blockCountOneTime; + } + else + { + if (blockLeft > SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT) + { + blockLeft = (blockLeft - SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT); + blockCountOneTime = SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT; + } + else + { + blockCountOneTime = blockLeft; + blockLeft = 0U; + } + } + + error = SD_Read(card, dataAddrAlign ? nextBuffer : alignBuffer, (startBlock + blockDone), + FSL_SDMMC_DEFAULT_BLOCK_SIZE, blockCountOneTime); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + blockDone += blockCountOneTime; + + if (!card->noInteralAlign && (!dataAddrAlign)) + { + (void)memcpy(nextBuffer, alignBuffer, FSL_SDMMC_DEFAULT_BLOCK_SIZE); + } + } + + return kStatus_Success; +} + +status_t SD_WriteBlocks(sd_card_t *card, const uint8_t *buffer, uint32_t startBlock, uint32_t blockCount) +{ + assert(card != NULL); + assert(buffer != NULL); + assert(blockCount != 0U); + assert((blockCount + startBlock) <= card->blockCount); + + uint32_t blockCountOneTime = 0U; /* The block count can be wrote in one time sending WRITE_BLOCKS command. */ + uint32_t blockWrittenOneTime = 0U; + uint32_t blockLeft = 0U; /* Left block count to be wrote. */ + const uint8_t *nextBuffer; + bool dataAddrAlign = true; + uint8_t *alignBuffer = (uint8_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + status_t error = kStatus_Success; + + blockLeft = blockCount; + while (blockLeft != 0U) + { + nextBuffer = (uint8_t *)((uint32_t)buffer + (blockCount - blockLeft) * FSL_SDMMC_DEFAULT_BLOCK_SIZE); + if (!card->noInteralAlign && (!dataAddrAlign || ((((uint32_t)nextBuffer) & (sizeof(uint32_t) - 1U)) != 0U))) + { + blockCountOneTime = 1; + (void)memcpy(alignBuffer, nextBuffer, FSL_SDMMC_DEFAULT_BLOCK_SIZE); + dataAddrAlign = false; + } + else + { + if (blockLeft > SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT) + { + blockCountOneTime = SDMMCHOST_SUPPORT_MAX_BLOCK_COUNT; + } + else + { + blockCountOneTime = blockLeft; + } + } + + error = SD_Write(card, dataAddrAlign ? nextBuffer : alignBuffer, (startBlock + blockCount - blockLeft), + FSL_SDMMC_DEFAULT_BLOCK_SIZE, blockCountOneTime, &blockWrittenOneTime); + if (kStatus_Success != error) + { + return kStatus_SDMMC_TransferFailed; + } + + blockLeft -= blockWrittenOneTime; + + if ((!card->noInteralAlign) && !dataAddrAlign) + { + (void)memset(alignBuffer, 0, FSL_SDMMC_DEFAULT_BLOCK_SIZE); + } + } + + return kStatus_Success; +} + +status_t SD_EraseBlocks(sd_card_t *card, uint32_t startBlock, uint32_t blockCount) +{ + assert(card != NULL); + assert(blockCount != 0U); + assert((blockCount + startBlock) <= card->blockCount); + + uint32_t blockCountOneTime; /* The block count can be erased in one time sending ERASE_BLOCKS command. */ + uint32_t blockDone = 0U; /* The block count has been erased. */ + uint32_t blockLeft; /* Left block count to be erase. */ + status_t error = kStatus_Success; + uint32_t onetimeMaxEraseBlocks = 0U; + + /* sdsc card erasable sector is determined by CSD register */ + if (card->csd.csdStructure == 0U) + { + onetimeMaxEraseBlocks = card->csd.eraseSectorSize + 1UL; + } + else + { + /* limit one time maximum erase size to 1 AU */ + if (card->stat.auSize >= SD_AU_START_VALUE) + { + onetimeMaxEraseBlocks = s_sdAuSizeMap[card->stat.auSize] / FSL_SDMMC_DEFAULT_BLOCK_SIZE; + } + } + + if (onetimeMaxEraseBlocks == 0U) + { + SDMMC_LOG( + "Warning: AU size in sd descriptor is not set properly, please check if SD_ReadStatus is called before\ + SD_EraseBlocks"); + return kStatus_SDMMC_AuSizeNotSetProperly; + } + + blockLeft = blockCount; + while (blockLeft != 0U) + { + if (blockLeft > onetimeMaxEraseBlocks) + { + blockCountOneTime = onetimeMaxEraseBlocks; + blockLeft = blockLeft - blockCountOneTime; + } + else + { + blockCountOneTime = blockLeft; + blockLeft = 0U; + } + + error = SD_Erase(card, (startBlock + blockDone), blockCountOneTime); + if (error != kStatus_Success) + { + return error; + } + + blockDone += blockCountOneTime; + } + + return kStatus_Success; +} + +static status_t SD_ProbeBusVoltage(sd_card_t *card) +{ + assert(card != NULL); + + uint32_t applicationCommand41Argument = 0U; + status_t error = kStatus_Success; + + /* 3.3V voltage should be supported as default */ + applicationCommand41Argument |= + SDMMC_MASK(kSD_OcrVdd29_30Flag) | SDMMC_MASK(kSD_OcrVdd32_33Flag) | SDMMC_MASK(kSD_OcrVdd33_34Flag); + +#if SDMMCHOST_SUPPORT_DDR50 || SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 + if (SDMMCHOST_INSTANCE_SUPPORT_1V8_SIGNAL(card->host) != 0) + { + /* allow user select the work voltage, if not select, sdmmc will handle it automatically */ + applicationCommand41Argument |= SDMMC_MASK(kSD_OcrSwitch18RequestFlag); + } + + if ((card->usrParam.ioVoltage != NULL) && (card->usrParam.ioVoltage->type == kSD_IOVoltageCtrlByGpio)) + { + /* make sure card signal line voltage is 3.3v before initalization */ + if (card->usrParam.ioVoltage->func != NULL) + { + card->usrParam.ioVoltage->func(kSDMMC_OperationVoltage330V); + } + } + else if ((card->usrParam.ioVoltage != NULL) && (card->usrParam.ioVoltage->type == kSD_IOVoltageCtrlByHost)) + { + SDMMCHOST_SwitchToVoltage(card->host, (uint32_t)kSDMMC_OperationVoltage330V); + } + else + { + applicationCommand41Argument &= ~SDMMC_MASK(kSD_OcrSwitch18RequestFlag); + } + +#endif + + card->operationVoltage = kSDMMC_OperationVoltage330V; + + do + { + /* card go idle */ + if (kStatus_Success != SD_GoIdle(card)) + { + error = kStatus_SDMMC_GoIdleFailed; + break; + } + + error = SD_SendInterfaceCondition(card); + /* Check card's supported interface condition. */ + if (kStatus_Success == error) + { + /* SDHC or SDXC card */ + applicationCommand41Argument |= SDMMC_MASK(kSD_OcrHostCapacitySupportFlag); + card->flags |= (uint32_t)kSD_SupportSdhcFlag; + } + else + { + /* SDSC card */ + if (kStatus_Success != SD_GoIdle(card)) + { + error = kStatus_SDMMC_GoIdleFailed; + break; + } + } + error = SD_ApplicationSendOperationCondition(card, applicationCommand41Argument); + /* Set card interface condition according to SDHC capability and card's supported interface condition. */ + if (kStatus_Success != error) + { + error = kStatus_SDMMC_HandShakeOperationConditionFailed; + break; + } + +#if SDMMCHOST_SUPPORT_DDR50 || SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 + /* check if card support 1.8V */ + if ((card->flags & (uint32_t)kSD_SupportVoltage180v) != 0U) + { + if ((card->usrParam.ioVoltage != NULL) && (card->usrParam.ioVoltage->type == kSD_IOVoltageCtrlNotSupport)) + { + break; + } + + error = SD_SwitchVoltage(card, kSDMMC_OperationVoltage180V); + if (kStatus_SDMMC_SwitchVoltageFail == error) + { + break; + } + + if (error == kStatus_SDMMC_SwitchVoltage18VFail33VSuccess) + { + applicationCommand41Argument &= ~SDMMC_MASK(kSD_OcrSwitch18RequestFlag); + card->flags &= ~(uint32_t)kSD_SupportVoltage180v; + continue; + } + else + { + card->operationVoltage = kSDMMC_OperationVoltage180V; + break; + } + } +#endif + + break; + } while (true); + + return error; +} + +status_t SD_CardInit(sd_card_t *card) +{ + assert(card != NULL); + assert(card->isHostReady == true); + status_t error = kStatus_Success; + + /* reset variables */ + card->flags = 0U; + /* set DATA bus width */ + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith1Bit); + /*set card freq to 400KHZ*/ + card->busClock_Hz = SDMMCHOST_SetCardClock(card->host, SDMMC_CLOCK_400KHZ); + /* send card active */ + SDMMCHOST_SendCardActive(card->host); + + error = SD_ProbeBusVoltage(card); + /* probe bus voltage*/ + if (error != kStatus_Success) + { + return kStatus_SDMMC_SwitchVoltageFail; + } + + error = SD_AllSendCid(card); + /* Initialize card if the card is SD card. */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_AllSendCidFailed; + } + + error = SD_SendRca(card); + if (kStatus_Success != error) + { + return kStatus_SDMMC_SendRelativeAddressFailed; + } + + error = SD_SendCsd(card); + if (kStatus_Success != error) + { + return kStatus_SDMMC_SendCsdFailed; + } + + error = SD_SelectCard(card, true); + if (kStatus_Success != error) + { + return kStatus_SDMMC_SelectCardFailed; + } + + /* Set to max frequency in non-high speed mode. */ + card->busClock_Hz = SDMMCHOST_SetCardClock(card->host, SD_CLOCK_25MHZ); + + error = SD_SendScr(card); + if (kStatus_Success != error) + { + return kStatus_SDMMC_SendScrFailed; + } + + /* Set to 4-bit data bus mode. */ + if ((card->flags & (uint32_t)kSD_Support4BitWidthFlag) != 0U) + { + error = SD_SetDataBusWidth(card, kSDMMC_BusWdith4Bit); + if (kStatus_Success != error) + { + return kStatus_SDMMC_SetDataBusWidthFailed; + } + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith4Bit); + } + + error = SD_SetBlockSize(card, FSL_SDMMC_DEFAULT_BLOCK_SIZE); + /* set block size */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_SetCardBlockSizeFailed; + } + + error = SD_SelectBusTiming(card); + /* select bus timing */ + if (kStatus_Success != error) + { + return kStatus_SDMMC_SwitchBusTimingFailed; + } + + /* try to get card current status */ + (void)SD_ReadStatus(card); + + return kStatus_Success; +} + +void SD_CardDeinit(sd_card_t *card) +{ + assert(card != NULL); + + (void)SD_SelectCard(card, false); +} + +status_t SD_HostInit(sd_card_t *card) +{ + assert(card != NULL); + assert(card->usrParam.cd != NULL); + + if ((!card->isHostReady) && SDMMCHOST_Init(card->host) != kStatus_Success) + { + return kStatus_Fail; + } + + if ((card->usrParam.cd->type == kSD_DetectCardByHostCD) || (card->usrParam.cd->type == kSD_DetectCardByHostDATA3)) + { + (void)SDMMCHOST_CardDetectInit(card->host, card->usrParam.cd); + } + + /* set the host status flag, after the card re-plug in, don't need init host again */ + card->isHostReady = true; + + return kStatus_Success; +} + +void SD_HostDeinit(sd_card_t *card) +{ + assert(card != NULL); + + SDMMCHOST_Deinit(card->host); + /* should re-init host */ + card->isHostReady = false; +} + +void SD_SetCardPower(sd_card_t *card, bool enable) +{ + assert(card != NULL); + + if (card->usrParam.pwr != NULL) + { + card->usrParam.pwr(enable); + } + else + { + SDMMCHOST_SetCardPower(card->host, enable); + } + + SDMMC_OSADelay(SD_POWER_RESET_DELAY); +} + +bool SD_IsCardPresent(sd_card_t *card) +{ + assert(card != NULL); + assert(card->usrParam.cd != NULL); + + if (card->usrParam.cd->type == kSD_DetectCardByGpioCD) + { + if (card->usrParam.cd->cardDetected == NULL) + { + return false; + } + return card->usrParam.cd->cardDetected(); + } + else + { + if (card->isHostReady == false) + { + return false; + } + + if (SDMMCHOST_CardDetectStatus(card->host) == (uint32_t)kSD_Removed) + { + return false; + } + } + + return true; +} + +status_t SD_PollingCardInsert(sd_card_t *card, uint32_t status) +{ + assert(card != NULL); + assert(card->usrParam.cd != NULL); + + if (card->usrParam.cd->type == kSD_DetectCardByGpioCD) + { + if (card->usrParam.cd->cardDetected == NULL) + { + return kStatus_Fail; + } + + do + { + if ((card->usrParam.cd->cardDetected() == true) && (status == (uint32_t)kSD_Inserted)) + { + SDMMC_OSADelay(card->usrParam.cd->cdDebounce_ms); + if (card->usrParam.cd->cardDetected() == true) + { + break; + } + } + + if ((card->usrParam.cd->cardDetected() == false) && (status == (uint32_t)kSD_Removed)) + { + break; + } + } while (true); + } + else + { + if (card->isHostReady == false) + { + return kStatus_Fail; + } + + if (SDMMCHOST_PollingCardDetectStatus(card->host, status, ~0U) != kStatus_Success) + { + return kStatus_Fail; + } + } + + return kStatus_Success; +} + +status_t SD_Init(sd_card_t *card) +{ + assert(card != NULL); + + if (!card->isHostReady) + { + if (SD_HostInit(card) != kStatus_Success) + { + return kStatus_SDMMC_HostNotReady; + } + } + else + { + SD_HostDoReset(card); + } + + if (SD_PollingCardInsert(card, kSD_Inserted) != kStatus_Success) + { + return kStatus_SDMMC_CardDetectFailed; + } + /* card power reset */ + SD_SetCardPower(card, false); + SD_SetCardPower(card, true); + + return SD_CardInit(card); +} + +void SD_Deinit(sd_card_t *card) +{ + /* card deinitialize */ + SD_CardDeinit(card); + /* host deinitialize */ + SD_HostDeinit(card); +} + +void SD_HostDoReset(sd_card_t *card) +{ + SDMMCHOST_Reset(card->host); +} + +void SD_HostReset(SDMMCHOST_CONFIG *host) +{ + SDMMCHOST_Reset(host); +} + +void SD_PowerOnCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr) +{ + SDMMCHOST_PowerOnCard(base, pwr); +} + +void SD_PowerOffCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr) +{ + SDMMCHOST_PowerOffCard(base, pwr); +} + +status_t SD_WaitCardDetectStatus(SDMMCHOST_TYPE *hostBase, const sdmmchost_detect_card_t *cd, bool waitCardStatus) +{ + return SDMMCHOST_WaitCardDetectStatus(hostBase, cd, waitCardStatus); +} diff --git a/middleware/sdmmc/sd/fsl_sd.h b/middleware/sdmmc/sd/fsl_sd.h new file mode 100644 index 0000000..c8ca4bd --- /dev/null +++ b/middleware/sdmmc/sd/fsl_sd.h @@ -0,0 +1,346 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2019 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef _FSL_SD_H_ +#define _FSL_SD_H_ + +#include "fsl_sdmmc_common.h" +/*! + * @addtogroup SDCARD + * @{ + */ + +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*! @brief Driver version. */ +#define FSL_SD_DRIVER_VERSION (MAKE_VERSION(2U, 3U, 3U)) /*2.3.3*/ + +/*! @brief SD card flags + * @anchor _sd_card_flag + */ +enum +{ + kSD_SupportHighCapacityFlag = (1U << 1U), /*!< Support high capacity */ + kSD_Support4BitWidthFlag = (1U << 2U), /*!< Support 4-bit data width */ + kSD_SupportSdhcFlag = (1U << 3U), /*!< Card is SDHC */ + kSD_SupportSdxcFlag = (1U << 4U), /*!< Card is SDXC */ + kSD_SupportVoltage180v = (1U << 5U), /*!< card support 1.8v voltage*/ + kSD_SupportSetBlockCountCmd = (1U << 6U), /*!< card support cmd23 flag*/ + kSD_SupportSpeedClassControlCmd = (1U << 7U), /*!< card support speed class control flag */ +}; + +/*! + * @brief SD card state + * + * Define the card structure including the necessary fields to identify and describe the card. + */ +typedef struct _sd_card +{ + sdmmchost_t *host; /*!< Host configuration */ + + sd_usr_param_t usrParam; /*!< user parameter */ + bool isHostReady; /*!< use this flag to indicate if need host re-init or not*/ + + bool noInteralAlign; /*!< used to enable/disable the functionality of the exchange buffer */ + uint32_t busClock_Hz; /*!< SD bus clock frequency united in Hz */ + uint32_t relativeAddress; /*!< Relative address of the card */ + uint32_t version; /*!< Card version */ + uint32_t flags; /*!< Flags in _sd_card_flag */ + uint8_t internalBuffer[FSL_SDMMC_CARD_INTERNAL_BUFFER_SIZE]; /*!< internal buffer */ + uint32_t ocr; /*!< Raw OCR content */ + sd_cid_t cid; /*!< CID */ + sd_csd_t csd; /*!< CSD */ + sd_scr_t scr; /*!< SCR */ + sd_status_t stat; /*!< sd 512 bit status */ + uint32_t blockCount; /*!< Card total block number */ + uint32_t blockSize; /*!< Card block size */ + sd_timing_mode_t currentTiming; /*!< current timing mode */ + sd_driver_strength_t driverStrength; /*!< driver strength */ + sd_max_current_t maxCurrent; /*!< card current limit */ + sdmmc_operation_voltage_t operationVoltage; /*!< card operation voltage */ +} sd_card_t; + +/************************************************************************************************* + * API + ************************************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name SDCARD Function + * @{ + */ + +/*! + * @brief Initializes the card on a specific host controller. + * @deprecated Do not use this function. It has been superceded by @ref SD_HostInit,SD_CardInit. + + * This function initializes the card on a specific host controller, it is consist of + * host init, card detect, card init function, however user can ignore this high level function, + * instead of use the low level function, such as SD_CardInit, SD_HostInit, SD_CardDetect. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_HostNotReady host is not ready. + * @retval kStatus_SDMMC_GoIdleFailed Go idle failed. + * @retval kStatus_SDMMC_NotSupportYet Card not support. + * @retval kStatus_SDMMC_SendOperationConditionFailed Send operation condition failed. + * @retval kStatus_SDMMC_AllSendCidFailed Send CID failed. + * @retval kStatus_SDMMC_SendRelativeAddressFailed Send relative address failed. + * @retval kStatus_SDMMC_SendCsdFailed Send CSD failed. + * @retval kStatus_SDMMC_SelectCardFailed Send SELECT_CARD command failed. + * @retval kStatus_SDMMC_SendScrFailed Send SCR failed. + * @retval kStatus_SDMMC_SetBusWidthFailed Set bus width failed. + * @retval kStatus_SDMMC_SwitchHighSpeedFailed Switch high speed failed. + * @retval kStatus_SDMMC_SetCardBlockSizeFailed Set card block size failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SD_Init(sd_card_t *card); + +/*! + * @brief Deinitializes the card. + * @deprecated Do not use this function. It has been superceded by @ref SD_HostDeinit,SD_CardDeinit. + * This function deinitializes the specific card and host. + * + * @param card Card descriptor. + */ +void SD_Deinit(sd_card_t *card); + +/*! + * @brief Initializes the card. + * + * This function initializes the card only, make sure the host is ready when call this function, + * otherwise it will return kStatus_SDMMC_HostNotReady. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_HostNotReady host is not ready. + * @retval kStatus_SDMMC_GoIdleFailed Go idle failed. + * @retval kStatus_SDMMC_NotSupportYet Card not support. + * @retval kStatus_SDMMC_SendOperationConditionFailed Send operation condition failed. + * @retval kStatus_SDMMC_AllSendCidFailed Send CID failed. + * @retval kStatus_SDMMC_SendRelativeAddressFailed Send relative address failed. + * @retval kStatus_SDMMC_SendCsdFailed Send CSD failed. + * @retval kStatus_SDMMC_SelectCardFailed Send SELECT_CARD command failed. + * @retval kStatus_SDMMC_SendScrFailed Send SCR failed. + * @retval kStatus_SDMMC_SetBusWidthFailed Set bus width failed. + * @retval kStatus_SDMMC_SwitchHighSpeedFailed Switch high speed failed. + * @retval kStatus_SDMMC_SetCardBlockSizeFailed Set card block size failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SD_CardInit(sd_card_t *card); + +/*! + * @brief Deinitializes the card. + * + * This function deinitializes the specific card. + * + * @param card Card descriptor. + */ +void SD_CardDeinit(sd_card_t *card); + +/*! + * @brief initialize the host. + * + * This function deinitializes the specific host. + * + * @param card Card descriptor. + */ +status_t SD_HostInit(sd_card_t *card); + +/*! + * @brief Deinitializes the host. + * + * This function deinitializes the host. + * + * @param card Card descriptor. + */ +void SD_HostDeinit(sd_card_t *card); + +/*! + * @brief reset the host. + * + * This function reset the specific host. + * + * @param card Card descriptor. + */ +void SD_HostDoReset(sd_card_t *card); + +/*! + * @brief reset the host. + * + * This function reset the specific host. + * @deprecated Do not use this function. It has been superceded by @ref SD_HostDoReset. + * + * @param host host descriptor. + */ +void SD_HostReset(SDMMCHOST_CONFIG *host); + +/*! + * @brief power on card. + * The power on operation depend on host or the user define power on function. + * @deprecated Do not use this function. It has been superceded by @ref SD_SetCardPower. + * @param base host base address. + * @param pwr user define power control configuration + */ +void SD_PowerOnCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr); + +/*! + * @brief power off card. + * The power off operation depend on host or the user define power on function. + * @deprecated Do not use this function. It has been superceded by @ref SD_SetCardPower. + * @param base host base address. + * @param pwr user define power control configuration + */ +void SD_PowerOffCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr); + +/*! + * @brief set card power. + * + * The power off operation depend on host or the user define power on function. + * @param card card descriptor. + * @param enable true is power on, false is power off. + */ +void SD_SetCardPower(sd_card_t *card, bool enable); + +/*! + * @brief sd wait card detect function. + * + * Detect card through GPIO, CD, DATA3. + * @deprecated Do not use this function. It has been superceded by @ref SD_PollingCardInsert. + * @param hostBase host base address. + * @param cd card detect configuration + * @param waitCardStatus wait card detect status + */ +status_t SD_WaitCardDetectStatus(SDMMCHOST_TYPE *hostBase, const sdmmchost_detect_card_t *cd, bool waitCardStatus); + +/*! + * @brief sd wait card detect function. + * + * Detect card through GPIO, CD, DATA3. + * @param card card descriptor. + * @param status detect status, kSD_Inserted or kSD_Removed. + */ +status_t SD_PollingCardInsert(sd_card_t *card, uint32_t status); + +/*! + * @brief sd card present check function. + * + * @param card card descriptor. + */ +bool SD_IsCardPresent(sd_card_t *card); + +/*! + * @brief Checks whether the card is write-protected. + * + * This function checks if the card is write-protected via the CSD register. + * + * @param card The specific card. + * @retval true Card is read only. + * @retval false Card isn't read only. + */ +bool SD_CheckReadOnly(sd_card_t *card); + +/*! + * @brief Send SELECT_CARD command to set the card to be transfer state or not. + * + * @param card Card descriptor. + * @param isSelected True to set the card into transfer state, false to disselect. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SD_SelectCard(sd_card_t *card, bool isSelected); + +/*! + * @brief Send ACMD13 to get the card current status. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_SendApplicationCommandFailed send application command failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SD_ReadStatus(sd_card_t *card); + +/*! + * @brief Reads blocks from the specific card. + * + * This function reads blocks from the specific card with default block size defined by the + * SDHC_CARD_DEFAULT_BLOCK_SIZE. + * + * @param card Card descriptor. + * @param buffer The buffer to save the data read from card. + * @param startBlock The start block index. + * @param blockCount The number of blocks to read. + * @retval kStatus_InvalidArgument Invalid argument. + * @retval kStatus_SDMMC_CardNotSupport Card not support. + * @retval kStatus_SDMMC_NotSupportYet Not support now. + * @retval kStatus_SDMMC_WaitWriteCompleteFailed Send status failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_StopTransmissionFailed Stop transmission failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SD_ReadBlocks(sd_card_t *card, uint8_t *buffer, uint32_t startBlock, uint32_t blockCount); + +/*! + * @brief Writes blocks of data to the specific card. + * + * This function writes blocks to the specific card with default block size 512 bytes. + * + * @param card Card descriptor. + * @param buffer The buffer holding the data to be written to the card. + * @param startBlock The start block index. + * @param blockCount The number of blocks to write. + * @retval kStatus_InvalidArgument Invalid argument. + * @retval kStatus_SDMMC_NotSupportYet Not support now. + * @retval kStatus_SDMMC_CardNotSupport Card not support. + * @retval kStatus_SDMMC_WaitWriteCompleteFailed Send status failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_StopTransmissionFailed Stop transmission failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SD_WriteBlocks(sd_card_t *card, const uint8_t *buffer, uint32_t startBlock, uint32_t blockCount); + +/*! + * @brief Erases blocks of the specific card. + * + * This function erases blocks of the specific card with default block size 512 bytes. + * + * @param card Card descriptor. + * @param startBlock The start block index. + * @param blockCount The number of blocks to erase. + * @retval kStatus_InvalidArgument Invalid argument. + * @retval kStatus_SDMMC_WaitWriteCompleteFailed Send status failed. + * @retval kStatus_SDMMC_TransferFailed Transfer failed. + * @retval kStatus_SDMMC_WaitWriteCompleteFailed Send status failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SD_EraseBlocks(sd_card_t *card, uint32_t startBlock, uint32_t blockCount); + +/*! + * @brief select card driver strength + * select card driver strength + * @param card Card descriptor. + * @param driverStrength Driver strength + */ +status_t SD_SetDriverStrength(sd_card_t *card, sd_driver_strength_t driverStrength); + +/*! + * @brief select max current + * select max operation current + * @param card Card descriptor. + * @param maxCurrent Max current + */ +status_t SD_SetMaxCurrent(sd_card_t *card, sd_max_current_t maxCurrent); + +/* @} */ + +#if defined(__cplusplus) +} +#endif +/*! @} */ +#endif /* _FSL_SD_H_*/ diff --git a/middleware/sdmmc/sdio/ChangeLogKSDK.txt b/middleware/sdmmc/sdio/ChangeLogKSDK.txt new file mode 100644 index 0000000..a840ba2 --- /dev/null +++ b/middleware/sdmmc/sdio/ChangeLogKSDK.txt @@ -0,0 +1,84 @@ +/*! +@page middleware_log Middleware Change Log + +@section sdio SDIO Card driver for MCUXpresso SDK +The current driver version is 2.3.2. + + - 2.3.2 + - Improvements + - Added host SDR timing mode capability validation during card initialization. + - Used cache line size align buffer for SDIO initialization api. + - Bug Fixes + - Fixed violations of MISRA C-2012 rule 11.9, 15.7, 4.7, 16.4, 10.1, 10.3, 10.4, 11.3, 14.4, 10.6, 17.7, 16.1, 16.3. + + - 2.3.1 + - Improvements + - Moved power off function after card detect in SD_Init for DAT3 detect card feature. + + - 2.3.0 + - Improvements + - Marked api SDIO_HostReset/SDIO_PowerOnCard/SDIO_PowerOffCard/SDIO_WaitCardDetectStatus as deprecated. + - Added new api SDIO_SetCardPower/SDIO_PollingCardDetectStatus/SDIO_HostDoReset. + - Added internalBuffer in sdio_card_t for card register content extract and improve the data access efficiency. + - Added retry function after switch to target timing failed in SDIO_SelectBusTiming. + - Changed defalut bus clock from 400KHZ to 25MHZ. + + - 2.2.13 + - Improvements + - Removed the sdio card interrupt from sdio host initialization, since the card interrupt enablement should be determined by application. + - Bug Fixes + - Fixed Out-of-bounds write Coverity issue. + + - 2.2.12 + - Improvements + - Added manual tuning function for looking for the tuning window automatically. + - Fixed the build warning by changing the old style function declaration static + status_t inline to static inline status_t(found by adding + -Wold-style-declaration in armgcc build flag). + - Fixed the fall through build warning by adding SUPPRESS_FALL_THROUGH_WARNING() in sdio driver. + + - 2.2.11 + - Bug Fixes + - Added check card async interrupt capability in function + SDIO_GetCardCapability. + - Fixed OUT OF BOUNDS access in function SDIO_IO_Transfer. + + - 2.2.10 + - Bug Fixes + - Fixed SDIO card driver get an incorrect io number when the card io number is + bigger than 2. + - Improvements + - Added SDIO 3.0 support. + - Added API SDIO_IO_RW_Direct for direct read/write card register access. + + - 2.2.9 + - Improvements + - Added API SDIO_SetIOIRQHandler/SDIO_HandlePendingIOInterrupt to handle multi io pending IRQ. + + - 2.2.8 + - Improvements + - Updated sdmmc to support SDIO interrupt. + - Added API SDIO_GetPendingInterrupt to get the pending io interrupt. + + - 2.2.7 + - Bug Fixes + - Fixed MDK 66-D warning. + + - 2.2.6 + - Improvements + - Added an unify transfer interface for SDIO. + - Bug Fixes + - Fixed Wrong pointer address used by SDMMCHOST_Init. + + - 2.1.5 + - Improvements + - Improved SDIO card init sequence and add retry option for SDIO_SwitchToHighSpeed function. + + - 2.1.4 + - Improvements + - Added Go_Idle function for SDIO card. + + - 2.0.0 + - Initial version. + +*/ diff --git a/middleware/sdmmc/sdio/fsl_sdio.c b/middleware/sdmmc/sdio/fsl_sdio.c new file mode 100644 index 0000000..b95623d --- /dev/null +++ b/middleware/sdmmc/sdio/fsl_sdio.c @@ -0,0 +1,1980 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include "fsl_sdio.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*! @brief define the tuple number will be read during init */ +#define SDIO_COMMON_CIS_TUPLE_NUM (3U) +/*! @brief SDIO retry times */ +#define SDIO_RETRY_TIMES (1000U) +/*!@brief power reset delay */ +#define SDIO_POWER_RESET_DELAY (500U) +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief probe bus voltage. + * @param card Card descriptor. + */ +static status_t SDIO_ProbeBusVoltage(sdio_card_t *card); + +/*! + * @brief send card operation condition + * @param card Card descriptor. + * @param command argment + * @param accept1V8 flag indicate card acccpt 1v8 switch or not + * argument = 0U , means to get the operation condition + * argument !=0 , set the operation condition register + */ +static status_t SDIO_SendOperationCondition(sdio_card_t *card, uint32_t argument, uint32_t *accept1V8); + +/*! + * @brief card Send relative address + * @param card Card descriptor. + */ +static status_t SDIO_SendRca(sdio_card_t *card); + +/*! + * @brief card select card + * @param card Card descriptor. + * @param select/diselect flag + */ +static inline status_t SDIO_SelectCard(sdio_card_t *card, bool isSelected); + +/*! + * @brief card go idle + * @param card Card descriptor. + */ +static inline status_t SDIO_GoIdle(sdio_card_t *card); + +/*! + * @brief decode CIS + * @param card Card descriptor. + * @param func number + * @param data buffer pointer + * @param tuple code + * @param tuple link + */ +static status_t SDIO_DecodeCIS( + sdio_card_t *card, sdio_func_num_t func, uint8_t *dataBuffer, uint32_t tplCode, uint32_t tplLink); + +/*! + * @brief switch to the maxium support bus width, depend on the host and card's capability. + * @param card Card descriptor. + */ +static status_t SDIO_SetMaxDataBusWidth(sdio_card_t *card); + +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 +/*! + * @brief sdio card excute tuning. + * @param card Card descriptor. + */ +static status_t SDIO_ExecuteTuning(sdio_card_t *card); +#endif +/******************************************************************************* + * Variables + ******************************************************************************/ +/* define the tuple list */ +static const uint32_t s_tupleList[SDIO_COMMON_CIS_TUPLE_NUM] = { + SDIO_TPL_CODE_MANIFID, + SDIO_TPL_CODE_FUNCID, + SDIO_TPL_CODE_FUNCE, +}; + +/******************************************************************************* + * Code + ******************************************************************************/ +static inline status_t SDIO_SelectCard(sdio_card_t *card, bool isSelected) +{ + assert(card != NULL); + + return SDMMC_SelectCard(card->host, card->relativeAddress, isSelected); +} + +static inline status_t SDIO_GoIdle(sdio_card_t *card) +{ + assert(card != NULL); + + return SDMMC_GoIdle(card->host); +} + +#if SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 +static status_t SDIO_SwitchVoltage(sdio_card_t *card, sdmmc_operation_voltage_t voltage) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + status_t error = kStatus_Success; + + command.index = (uint32_t)kSD_VoltageSwitch; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR1; + + content.command = &command; + content.data = NULL; + if (kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content)) + { + return kStatus_SDMMC_TransferFailed; + } + + /* check data line and cmd line status */ + if (SDMMCHOST_GetSignalLineStatus(card->host, (uint32_t)kSDMMC_SignalLineData0 | (uint32_t)kSDMMC_SignalLineData1 | + (uint32_t)kSDMMC_SignalLineData2 | + (uint32_t)kSDMMC_SignalLineData3) != 0U) + { + return kStatus_SDMMC_SwitchVoltageFail; + } + + if (card->usrParam.ioVoltage->func != NULL) + { + card->usrParam.ioVoltage->func(voltage); + } + else + { + /* host switch to 1.8V */ + SDMMCHOST_SwitchToVoltage(card->host, (uint32_t)voltage); + } + + SDMMC_OSADelay(100U); + + /*enable force clock on*/ + SDMMCHOST_ForceClockOn(card->host, true); + /* dealy 1ms,not exactly correct when use while */ + SDMMC_OSADelay(10U); + /*disable force clock on*/ + SDMMCHOST_ForceClockOn(card->host, false); + + /* check data line and cmd line status */ + if (SDMMCHOST_GetSignalLineStatus(card->host, (uint32_t)kSDMMC_SignalLineData0 | (uint32_t)kSDMMC_SignalLineData1 | + (uint32_t)kSDMMC_SignalLineData2 | + (uint32_t)kSDMMC_SignalLineData3) == 0U) + { + error = kStatus_SDMMC_SwitchVoltageFail; + /* power reset the card */ + SDIO_SetCardPower(card, false); + SDIO_SetCardPower(card, true); + /* re-check the data line status */ + if (SDMMCHOST_GetSignalLineStatus( + card->host, (uint32_t)kSDMMC_SignalLineData0 | (uint32_t)kSDMMC_SignalLineData1 | + (uint32_t)kSDMMC_SignalLineData2 | (uint32_t)kSDMMC_SignalLineData3) != 0U) + { + error = kStatus_SDMMC_SwitchVoltage18VFail33VSuccess; + SDMMC_LOG("\r\nNote: Current card support 1.8V, but board don't support, so sdmmc switch back to 3.3V."); + } + else + { + SDMMC_LOG( + "\r\nError: Current card support 1.8V, but board don't support, sdmmc tried to switch back\ + to 3.3V, but failed, please check board setting."); + } + } + + return error; +} + +static status_t SDIO_ExecuteTuning(sdio_card_t *card) +{ + assert(card != NULL); + + return SDMMCHOST_ExecuteTuning(card->host, (uint32_t)kSD_SendTuningBlock, + (uint32_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer), 64U); +} +#endif + +static status_t SDIO_SendRca(sdio_card_t *card) +{ + assert(card != NULL); + + uint32_t i = FSL_SDMMC_MAX_CMD_RETRIES; + + sdmmchost_transfer_t content = {0}; + sdmmchost_cmd_t command = {0}; + + command.index = (uint32_t)kSDIO_SendRelativeAddress; + command.argument = 0U; + command.responseType = kCARD_ResponseTypeR6; + command.responseErrorFlags = + (uint32_t)kSDIO_StatusR6Error | (uint32_t)kSDIO_StatusIllegalCmd | (uint32_t)kSDIO_StatusCmdCRCError; + + content.command = &command; + content.data = NULL; + + while (--i != 0U) + { + if (kStatus_Success == SDMMCHOST_TransferFunction(card->host, &content)) + { + /* check illegal state and cmd CRC error, may be the voltage or clock not stable, retry the cmd*/ + if ((command.response[0U] & ((uint32_t)kSDIO_StatusIllegalCmd | (uint32_t)kSDIO_StatusCmdCRCError)) != 0U) + { + continue; + } + + card->relativeAddress = (command.response[0U] >> 16U); + + return kStatus_Success; + } + } + + return kStatus_SDMMC_TransferFailed; +} + +status_t SDIO_CardInActive(sdio_card_t *card) +{ + assert(card != NULL); + + return SDMMC_SetCardInactive(card->host); +} + +static status_t SDIO_SendOperationCondition(sdio_card_t *card, uint32_t argument, uint32_t *accept1V8) +{ + assert(card != NULL); + + sdmmchost_transfer_t content = {0U}; + sdmmchost_cmd_t command = {0U}; + uint32_t i = SDIO_RETRY_TIMES; + + command.index = (uint32_t)kSDIO_SendOperationCondition; + command.argument = argument; + command.responseType = kCARD_ResponseTypeR4; + + content.command = &command; + content.data = NULL; + + while (--i != 0U) + { + if (kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content) || (command.response[0U] == 0U)) + { + continue; + } + + /* if argument equal 0, then should check and save the info */ + if ((argument != 0U) && ((command.response[0U] & SDMMC_MASK(kSDIO_OcrPowerUpBusyFlag)) == 0U)) + { + continue; + } + else if (argument == 0U) + { + /* check the io number and ocr value */ + if ((((command.response[0U] & SDIO_OCR_IO_NUM_MASK) >> kSDIO_OcrIONumber) == 0U) || + ((command.response[0U] & 0xFFFFFFU) == 0U)) + { + return kStatus_Fail; + } + + break; + } + else + { + /* check if memory present */ + if ((command.response[0U] & SDMMC_MASK(kSDIO_OcrMemPresent)) == SDMMC_MASK(kSDIO_OcrMemPresent)) + { + card->memPresentFlag = true; + } + /* save the io number */ + card->ioTotalNumber = (uint8_t)((command.response[0U] & SDIO_OCR_IO_NUM_MASK) >> kSDIO_OcrIONumber); + /* save the operation condition */ + card->ocr = command.response[0U] & 0xFFFFFFU; + if (accept1V8 != NULL) + { + *accept1V8 = command.response[0U] & 0x1000000U; + } + + break; + } + } + + return ((i != 0U) ? kStatus_Success : kStatus_Fail); +} + +status_t SDIO_IO_Write_Direct(sdio_card_t *card, sdio_func_num_t func, uint32_t regAddr, uint8_t *data, bool raw) +{ + assert(card != NULL); + assert(func <= kSDIO_FunctionNum7); + + sdmmchost_transfer_t content = {0U}; + sdmmchost_cmd_t command = {0U}; + + command.index = (uint32_t)kSDIO_RWIODirect; + command.argument = ((uint32_t)func << SDIO_CMD_ARGUMENT_FUNC_NUM_POS) | + ((regAddr & SDIO_CMD_ARGUMENT_REG_ADDR_MASK) << SDIO_CMD_ARGUMENT_REG_ADDR_POS) | + (1U << SDIO_CMD_ARGUMENT_RW_POS) | ((raw ? 1U : 0U) << SDIO_DIRECT_CMD_ARGUMENT_RAW_POS) | + (*data & SDIO_DIRECT_CMD_DATA_MASK); + command.responseType = kCARD_ResponseTypeR5; + command.responseErrorFlags = + ((uint32_t)kSDIO_StatusCmdCRCError | (uint32_t)kSDIO_StatusIllegalCmd | (uint32_t)kSDIO_StatusError | + (uint32_t)kSDIO_StatusFunctionNumError | (uint32_t)kSDIO_StatusOutofRange); + + content.command = &command; + content.data = NULL; + + if (kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content)) + { + return kStatus_SDMMC_TransferFailed; + } + + /* read data from response */ + *data = (uint8_t)(command.response[0U] & SDIO_DIRECT_CMD_DATA_MASK); + + return kStatus_Success; +} + +status_t SDIO_IO_Read_Direct(sdio_card_t *card, sdio_func_num_t func, uint32_t regAddr, uint8_t *data) +{ + assert(card != NULL); + assert(func <= kSDIO_FunctionNum7); + + sdmmchost_transfer_t content = {0U}; + sdmmchost_cmd_t command = {0U}; + + command.index = (uint32_t)kSDIO_RWIODirect; + command.argument = ((uint32_t)func << SDIO_CMD_ARGUMENT_FUNC_NUM_POS) | + ((regAddr & SDIO_CMD_ARGUMENT_REG_ADDR_MASK) << SDIO_CMD_ARGUMENT_REG_ADDR_POS); + command.responseType = kCARD_ResponseTypeR5; + command.responseErrorFlags = + ((uint32_t)kSDIO_StatusCmdCRCError | (uint32_t)kSDIO_StatusIllegalCmd | (uint32_t)kSDIO_StatusError | + (uint32_t)kSDIO_StatusFunctionNumError | (uint32_t)kSDIO_StatusOutofRange); + + content.command = &command; + content.data = NULL; + + if (kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content)) + { + return kStatus_SDMMC_TransferFailed; + } + + /* read data from response */ + *data = (uint8_t)(command.response[0U] & SDIO_DIRECT_CMD_DATA_MASK); + + return kStatus_Success; +} + +status_t SDIO_IO_RW_Direct(sdio_card_t *card, + sdio_io_direction_t direction, + sdio_func_num_t func, + uint32_t regAddr, + uint8_t dataIn, + uint8_t *dataOut) +{ + assert(card != NULL); + assert(func <= kSDIO_FunctionNum7); + + sdmmchost_transfer_t content = {0U}; + sdmmchost_cmd_t command = {0U}; + + command.index = (uint32_t)kSDIO_RWIODirect; + command.argument = ((uint32_t)func << SDIO_CMD_ARGUMENT_FUNC_NUM_POS) | + ((regAddr & SDIO_CMD_ARGUMENT_REG_ADDR_MASK) << SDIO_CMD_ARGUMENT_REG_ADDR_POS); + + if ((dataOut != NULL) && (direction == kSDIO_IOWrite)) + { + command.argument |= (1U << SDIO_CMD_ARGUMENT_RW_POS) | (1U << SDIO_DIRECT_CMD_ARGUMENT_RAW_POS); + } + + if (direction == kSDIO_IOWrite) + { + command.argument |= (uint32_t)dataIn & SDIO_DIRECT_CMD_DATA_MASK; + } + + command.responseType = kCARD_ResponseTypeR5; + command.responseErrorFlags = + ((uint32_t)kSDIO_StatusCmdCRCError | (uint32_t)kSDIO_StatusIllegalCmd | (uint32_t)kSDIO_StatusError | + (uint32_t)kSDIO_StatusFunctionNumError | (uint32_t)kSDIO_StatusOutofRange); + + content.command = &command; + content.data = NULL; + + if (kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content)) + { + return kStatus_SDMMC_TransferFailed; + } + + if (dataOut != NULL) + { + /* read data from response */ + *dataOut = (uint8_t)(command.response[0U] & SDIO_DIRECT_CMD_DATA_MASK); + } + + return kStatus_Success; +} + +status_t SDIO_IO_Write_Extended( + sdio_card_t *card, sdio_func_num_t func, uint32_t regAddr, uint8_t *buffer, uint32_t count, uint32_t flags) +{ + assert(card != NULL); + assert(buffer != NULL); + assert(func <= kSDIO_FunctionNum7); + + sdmmchost_transfer_t content = {0U}; + sdmmchost_cmd_t command = {0U}; + sdmmchost_data_t data = {0U}; + bool blockMode = false; + bool opCode = false; + + /* check if card support block mode */ + if (((card->cccrflags & (uint32_t)kSDIO_CCCRSupportMultiBlock) != 0U) && + ((flags & SDIO_EXTEND_CMD_BLOCK_MODE_MASK) != 0U)) + { + blockMode = true; + } + + if ((flags & SDIO_EXTEND_CMD_OP_CODE_MASK) != 0U) + { + opCode = true; + } + + /* check the byte size counter in non-block mode + * so you need read CIS for each function first,before you do read/write + */ + if (!blockMode) + { + if ((func == kSDIO_FunctionNum0) && (card->commonCIS.fn0MaxBlkSize != 0U) && + (count > card->commonCIS.fn0MaxBlkSize)) + { + return kStatus_SDMMC_SDIO_InvalidArgument; + } + else if ((func != kSDIO_FunctionNum0) && (card->funcCIS[(uint32_t)func - 1U].ioMaxBlockSize != 0U) && + (count > card->funcCIS[(uint32_t)func - 1U].ioMaxBlockSize)) + { + return kStatus_SDMMC_SDIO_InvalidArgument; + } + else + { + /* Intentional empty */ + } + } + + command.index = (uint32_t)kSDIO_RWIOExtended; + command.argument = ((uint32_t)func << SDIO_CMD_ARGUMENT_FUNC_NUM_POS) | + ((regAddr & SDIO_CMD_ARGUMENT_REG_ADDR_MASK) << SDIO_CMD_ARGUMENT_REG_ADDR_POS) | + (1U << SDIO_CMD_ARGUMENT_RW_POS) | (count & SDIO_EXTEND_CMD_COUNT_MASK) | + ((blockMode ? 1U : 0U) << SDIO_EXTEND_CMD_ARGUMENT_BLOCK_MODE_POS | + ((opCode ? 1U : 0U) << SDIO_EXTEND_CMD_ARGUMENT_OP_CODE_POS)); + command.responseType = kCARD_ResponseTypeR5; + command.responseErrorFlags = + ((uint32_t)kSDIO_StatusCmdCRCError | (uint32_t)kSDIO_StatusIllegalCmd | (uint32_t)kSDIO_StatusError | + (uint32_t)kSDIO_StatusFunctionNumError | (uint32_t)kSDIO_StatusOutofRange); + + if (blockMode) + { + if (func == kSDIO_FunctionNum0) + { + data.blockSize = card->io0blockSize; + } + else + { + data.blockSize = card->ioFBR[(uint32_t)func - 1U].ioBlockSize; + } + data.blockCount = count; + } + else + { + data.blockSize = count; + data.blockCount = 1U; + } + data.txData = (uint32_t *)(uint32_t)buffer; + + content.command = &command; + content.data = &data; + + if (kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t SDIO_IO_Read_Extended( + sdio_card_t *card, sdio_func_num_t func, uint32_t regAddr, uint8_t *buffer, uint32_t count, uint32_t flags) +{ + assert(card != NULL); + assert(buffer != NULL); + assert(func <= kSDIO_FunctionNum7); + + sdmmchost_transfer_t content = {0U}; + sdmmchost_cmd_t command = {0U}; + sdmmchost_data_t data = {0U}; + bool blockMode = false; + bool opCode = false; + + /* check if card support block mode */ + if (((card->cccrflags & (uint32_t)kSDIO_CCCRSupportMultiBlock) != 0U) && + ((flags & SDIO_EXTEND_CMD_BLOCK_MODE_MASK) != 0U)) + { + blockMode = true; + } + + /* op code =0 : read/write to fixed addr + * op code =1 :read/write addr incrementing + */ + if ((flags & SDIO_EXTEND_CMD_OP_CODE_MASK) != 0U) + { + opCode = true; + } + + /* check the byte size counter in non-block mode + * so you need read CIS for each function first,before you do read/write + */ + if (!blockMode) + { + if ((func == kSDIO_FunctionNum0) && (card->commonCIS.fn0MaxBlkSize != 0U) && + (count > card->commonCIS.fn0MaxBlkSize)) + { + return kStatus_SDMMC_SDIO_InvalidArgument; + } + else if ((func != kSDIO_FunctionNum0) && (card->funcCIS[(uint32_t)func - 1U].ioMaxBlockSize != 0U) && + (count > card->funcCIS[(uint32_t)func - 1U].ioMaxBlockSize)) + { + return kStatus_SDMMC_SDIO_InvalidArgument; + } + else + { + /* Intentional empty */ + } + } + + command.index = (uint32_t)kSDIO_RWIOExtended; + command.argument = ((uint32_t)func << SDIO_CMD_ARGUMENT_FUNC_NUM_POS) | + ((regAddr & SDIO_CMD_ARGUMENT_REG_ADDR_MASK) << SDIO_CMD_ARGUMENT_REG_ADDR_POS) | + (count & SDIO_EXTEND_CMD_COUNT_MASK) | + ((blockMode ? 1U : 0U) << SDIO_EXTEND_CMD_ARGUMENT_BLOCK_MODE_POS | + ((opCode ? 1U : 0U) << SDIO_EXTEND_CMD_ARGUMENT_OP_CODE_POS)); + command.responseType = kCARD_ResponseTypeR5; + command.responseErrorFlags = + ((uint32_t)kSDIO_StatusCmdCRCError | (uint32_t)kSDIO_StatusIllegalCmd | (uint32_t)kSDIO_StatusError | + (uint32_t)kSDIO_StatusFunctionNumError | (uint32_t)kSDIO_StatusOutofRange); + + if (blockMode) + { + if (func == kSDIO_FunctionNum0) + { + data.blockSize = card->io0blockSize; + } + else + { + data.blockSize = card->ioFBR[(uint32_t)func - 1U].ioBlockSize; + } + data.blockCount = count; + } + else + { + data.blockSize = count; + data.blockCount = 1U; + } + data.rxData = (uint32_t *)(uint32_t)buffer; + + content.command = &command; + content.data = &data; + + if (kStatus_Success != SDMMCHOST_TransferFunction(card->host, &content)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t SDIO_IO_Transfer(sdio_card_t *card, + sdio_command_t cmd, + uint32_t argument, + uint32_t blockSize, + uint8_t *txData, + uint8_t *rxData, + uint16_t dataSize, + uint32_t *response) +{ + assert(card != NULL); + + uint32_t actualSize = dataSize; + sdmmchost_transfer_t content = {0U}; + sdmmchost_cmd_t command = {0U}; + sdmmchost_data_t data = {0U}; + uint32_t i = SDIO_RETRY_TIMES; + uint32_t *dataAddr = (uint32_t *)(uint32_t)(txData == NULL ? rxData : txData); + uint8_t *alignBuffer = (uint8_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + + if ((dataSize != 0U) && (txData != NULL) && (rxData != NULL)) + { + return kStatus_InvalidArgument; + } + + command.index = (uint32_t)cmd; + command.argument = argument; + command.responseType = kCARD_ResponseTypeR5; + command.responseErrorFlags = + ((uint32_t)kSDIO_StatusCmdCRCError | (uint32_t)kSDIO_StatusIllegalCmd | (uint32_t)kSDIO_StatusError | + (uint32_t)kSDIO_StatusFunctionNumError | (uint32_t)kSDIO_StatusOutofRange); + content.command = &command; + content.data = NULL; + + if (dataSize != 0U) + { + /* if block size bigger than 1, then use block mode */ + if ((argument & SDIO_EXTEND_CMD_BLOCK_MODE_MASK) != 0U) + { + if (dataSize % blockSize != 0U) + { + actualSize = ((dataSize / blockSize) + 1U) * blockSize; + } + + data.blockCount = actualSize / blockSize; + data.blockSize = blockSize; + } + else + { + data.blockCount = 1; + data.blockSize = dataSize; + } + /* if data buffer address can not meet host controller internal DMA requirement, sdio driver will try to use + * internal align buffer if data size is not bigger than internal buffer size, + * Align address transfer always can get a better performance, so if you want sdio driver make buffer address + * align, you should + * redefine the SDMMC_GLOBAL_BUFFER_SIZE macro to a value which is big enough for your application. + */ + if ((((uint32_t)dataAddr & (SDMMCHOST_DMA_DESCRIPTOR_BUFFER_ALIGN_SIZE - 1U)) != 0U) && + (actualSize <= FSL_SDMMC_DEFAULT_BLOCK_SIZE) && (!card->noInternalAlign)) + { + dataAddr = (uint32_t *)(uint32_t)alignBuffer; + (void)memset(alignBuffer, 0, actualSize); + if (txData != NULL) + { + (void)memcpy(alignBuffer, txData, dataSize); + } + } + + if (rxData != NULL) + { + data.rxData = dataAddr; + } + else + { + data.txData = dataAddr; + } + + content.data = &data; + } + + do + { + if (kStatus_Success == SDMMCHOST_TransferFunction(card->host, &content)) + { + if ((rxData != NULL) && (dataSize != 0U) && + (((uint32_t)rxData & (SDMMCHOST_DMA_DESCRIPTOR_BUFFER_ALIGN_SIZE - 1U)) != 0U) && + (actualSize <= FSL_SDMMC_DEFAULT_BLOCK_SIZE) && (!card->noInternalAlign)) + { + (void)memcpy(rxData, alignBuffer, dataSize); + } + + if (response != NULL) + { + *response = command.response[0]; + } + + return kStatus_Success; + } + + i--; + } while (i != 0U); + + return kStatus_Fail; +} + +status_t SDIO_GetCardCapability(sdio_card_t *card, sdio_func_num_t func) +{ + assert(card != NULL); + assert(func <= kSDIO_FunctionNum7); + + uint8_t *tempBuffer = (uint8_t *)FSL_SDMMC_CARD_INTERNAL_BUFFER_ALIGN_ADDR(card->internalBuffer); + uint32_t i = 0U; + + (void)memset(tempBuffer, 0, SDIO_CCCR_REG_NUMBER); + + for (i = 0U; i <= SDIO_CCCR_REG_NUMBER; i++) + { + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, + SDIO_FBR_BASE((uint32_t)func) + i, 0U, &tempBuffer[i])) + { + return kStatus_SDMMC_TransferFailed; + } + } + + switch (func) + { + case kSDIO_FunctionNum0: + + card->sdVersion = tempBuffer[kSDIO_RegSDVersion]; + card->sdioVersion = tempBuffer[kSDIO_RegCCCRSdioVer] >> 4U; + card->cccrVersioin = tempBuffer[kSDIO_RegCCCRSdioVer] & 0xFU; + /* continuous SPI interrupt */ + if ((tempBuffer[kSDIO_RegBusInterface] & 0x40U) != 0U) + { + card->cccrflags |= (uint32_t)kSDIO_CCCRSupportContinuousSPIInt; + } + /* 8bit data bus */ + if ((tempBuffer[kSDIO_RegBusInterface] & 0x4U) != 0U) + { + card->cccrflags |= SDIO_CCCR_SUPPORT_8BIT_BUS; + } + + /* card capability register */ + card->cccrflags |= (tempBuffer[kSDIO_RegCardCapability] & 0xDFUL); + /* master power control */ + if ((tempBuffer[kSDIO_RegPowerControl] & 0x01U) != 0U) + { + card->cccrflags |= (uint32_t)kSDIO_CCCRSupportMasterPowerControl; + } + /* high speed flag */ + if ((tempBuffer[kSDIO_RegBusSpeed] & 0x01U) != 0U) + { + card->cccrflags |= SDIO_CCCR_SUPPORT_HIGHSPEED; + } + /* uhs mode flag */ + card->cccrflags |= (tempBuffer[kSDIO_RegUHSITimingSupport] & 7UL) << 11U; + /* driver type flag */ + card->cccrflags |= (tempBuffer[kSDIO_RegDriverStrength] & 7UL) << 14U; + /* low speed 4bit */ + if ((tempBuffer[kSDIO_RegCardCapability] & 0x80U) != 0U) + { + card->cccrflags |= (uint32_t)kSDIO_CCCRSupportLowSpeed4Bit; + } + /* common CIS pointer */ + card->commonCISPointer = tempBuffer[kSDIO_RegCommonCISPointer] | + ((uint32_t)tempBuffer[(uint32_t)kSDIO_RegCommonCISPointer + 1U] << 8U) | + ((uint32_t)tempBuffer[(uint32_t)kSDIO_RegCommonCISPointer + 2U] << 16U); + + /* check card capability of support async interrupt */ + if ((tempBuffer[kSDIO_RegInterruptExtension] & SDIO_CCCR_ASYNC_INT_MASK) == SDIO_CCCR_ASYNC_INT_MASK) + { + card->cccrflags |= SDIO_CCCR_SUPPORT_ASYNC_INT; + } + + break; + + case kSDIO_FunctionNum1: + case kSDIO_FunctionNum2: + case kSDIO_FunctionNum3: + case kSDIO_FunctionNum4: + case kSDIO_FunctionNum5: + case kSDIO_FunctionNum6: + case kSDIO_FunctionNum7: + card->ioFBR[(uint32_t)func - 1U].ioStdFunctionCode = tempBuffer[0U] & 0x0FU; + card->ioFBR[(uint32_t)func - 1U].ioExtFunctionCode = tempBuffer[1U]; + card->ioFBR[(uint32_t)func - 1U].ioPointerToCIS = + tempBuffer[9U] | ((uint32_t)tempBuffer[10U] << 8U) | ((uint32_t)tempBuffer[11U] << 16U); + card->ioFBR[(uint32_t)func - 1U].ioPointerToCSA = + tempBuffer[12U] | ((uint32_t)tempBuffer[13U] << 8U) | ((uint32_t)tempBuffer[14U] << 16U); + if ((tempBuffer[2U] & 0x01U) != 0U) + { + card->ioFBR[(uint32_t)func - 1U].flags |= (uint8_t)kSDIO_FBRSupportPowerSelection; + } + if ((tempBuffer[0U] & 0x40U) != 0U) + { + card->ioFBR[(uint32_t)func - 1U].flags |= (uint8_t)kSDIO_FBRSupportCSA; + } + + break; + + default: + assert(false); + break; + } + + return kStatus_Success; +} + +status_t SDIO_SetBlockSize(sdio_card_t *card, sdio_func_num_t func, uint32_t blockSize) +{ + assert(card != NULL); + assert(func <= kSDIO_FunctionNum7); + assert(blockSize <= SDIO_MAX_BLOCK_SIZE); + + uint8_t temp = 0U; + + /* check the block size for block mode + * so you need read CIS for each function first,before you do read/write + */ + if ((func == kSDIO_FunctionNum0) && (card->commonCIS.fn0MaxBlkSize != 0U) && + (blockSize > card->commonCIS.fn0MaxBlkSize)) + { + return kStatus_SDMMC_SDIO_InvalidArgument; + } + else if ((func != kSDIO_FunctionNum0) && (card->funcCIS[(uint32_t)func - 1U].ioMaxBlockSize != 0U) && + (blockSize > card->funcCIS[(uint32_t)func - 1U].ioMaxBlockSize)) + { + return kStatus_SDMMC_SDIO_InvalidArgument; + } + else + { + /* Intentional empty */ + } + + temp = (uint8_t)(blockSize & 0xFFU); + + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, + SDIO_FBR_BASE((uint32_t)func) + (uint32_t)kSDIO_RegFN0BlockSizeLow, temp, + &temp)) + { + return kStatus_SDMMC_SetCardBlockSizeFailed; + } + + temp = (uint8_t)((blockSize >> 8U) & 0xFFU); + + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, + SDIO_FBR_BASE((uint32_t)func) + (uint32_t)kSDIO_RegFN0BlockSizeHigh, temp, + &temp)) + { + return kStatus_SDMMC_SetCardBlockSizeFailed; + } + + /* record the current block size */ + if (func == kSDIO_FunctionNum0) + { + card->io0blockSize = blockSize; + } + else + { + card->ioFBR[(uint32_t)func - 1U].ioBlockSize = (uint16_t)blockSize; + } + + return kStatus_Success; +} + +status_t SDIO_CardReset(sdio_card_t *card) +{ + return SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, kSDIO_RegIOAbort, 0x08U, NULL); +} + +status_t SDIO_SetDataBusWidth(sdio_card_t *card, sdio_bus_width_t busWidth) +{ + assert(card != NULL); + + uint8_t regBusInterface = 0U; + + if (((busWidth == kSDIO_DataBus4Bit) && ((card->cccrflags & (uint32_t)kSDIO_CCCRSupportHighSpeed) == 0U) && + ((card->cccrflags & (uint32_t)kSDIO_CCCRSupportLowSpeed4Bit) == 0U))) + { + return kStatus_SDMMC_SDIO_InvalidArgument; + } + +#if SDMMCHOST_SUPPORT_8_BIT_WIDTH + if ((((card->cccrflags & SDIO_CCCR_SUPPORT_8BIT_BUS) == 0U) || + ((card->usrParam.capability & (uint32_t)kSDMMC_Support8BitWidth) == 0U)) && + (busWidth == kSDIO_DataBus8Bit)) + { + return kStatus_SDMMC_SDIO_InvalidArgument; + } +#else + if (busWidth == kSDIO_DataBus8Bit) + { + return kStatus_SDMMC_SDIO_InvalidArgument; + } +#endif + + /* load bus interface register */ + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, kSDIO_RegBusInterface, 0U, ®BusInterface)) + { + return kStatus_SDMMC_TransferFailed; + } + /* set bus width */ + regBusInterface &= 0xFCU; + regBusInterface |= (uint8_t)busWidth; + + /* write to register */ + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, kSDIO_RegBusInterface, + regBusInterface, ®BusInterface)) + { + return kStatus_SDMMC_TransferFailed; + } + + if (busWidth == kSDIO_DataBus8Bit) + { + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith8Bit); + } + else if (busWidth == kSDIO_DataBus4Bit) + { + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith4Bit); + } + else + { + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith1Bit); + } + + return kStatus_Success; +} + +static status_t SDIO_SetMaxDataBusWidth(sdio_card_t *card) +{ + sdio_bus_width_t busWidth = kSDIO_DataBus1Bit; + +#if SDMMCHOST_SUPPORT_8_BIT_WIDTH + if (((card->cccrflags & SDIO_CCCR_SUPPORT_8BIT_BUS) != 0U) && + (card->usrParam.capability & (uint32_t)kSDMMC_Support8BitWidth) != 0U) + { + busWidth = kSDIO_DataBus8Bit; + } +#endif + /* switch data bus width */ + if ((((card->cccrflags & (uint32_t)kSDIO_CCCRSupportHighSpeed) != 0U) || + ((card->cccrflags & (uint32_t)kSDIO_CCCRSupportLowSpeed4Bit) != 0U)) && + (busWidth == kSDIO_DataBus1Bit)) + { + busWidth = kSDIO_DataBus4Bit; + } + + return SDIO_SetDataBusWidth(card, busWidth); +} + +status_t SDIO_SwitchToHighSpeed(sdio_card_t *card) +{ + assert(card != NULL); + + uint8_t temp = 0U; + uint32_t retryTimes = SDIO_RETRY_TIMES; + status_t status = kStatus_SDMMC_SDIO_SwitchHighSpeedFail; + + if ((card->cccrflags & SDIO_CCCR_SUPPORT_HIGHSPEED) != 0U) + { + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, kSDIO_RegBusSpeed, 0U, &temp)) + { + return kStatus_SDMMC_TransferFailed; + } + + do + { + temp &= (uint8_t)~SDIO_CCCR_BUS_SPEED_MASK; + temp |= SDIO_CCCR_ENABLE_HIGHSPEED_MODE; + + retryTimes--; + /* enable high speed mode */ + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, kSDIO_RegBusSpeed, temp, &temp)) + { + continue; + } + /* either EHS=0 and SHS=0 ,the card is still in default mode */ + if ((temp & 0x03U) == 0x03U) + { + card->busClock_Hz = SDMMCHOST_SetCardClock( + card->host, FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_50MHZ)); + status = kStatus_Success; + break; + } + else + { + continue; + } + + } while (retryTimes != 0U); + } + else + { + /* default mode 25MHZ */ + card->busClock_Hz = + SDMMCHOST_SetCardClock(card->host, FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_25MHZ)); + status = kStatus_Success; + } + + return status; +} + +static status_t SDIO_SelectBusTiming(sdio_card_t *card) +{ + assert(card != NULL); + + uint32_t targetBusFreq = SD_CLOCK_25MHZ; + uint32_t targetTiming = 0U; + uint8_t temp = 0U; + uint32_t supportModeFlag = 0U; + uint32_t retryTimes = SDIO_RETRY_TIMES; + + do + { + switch (card->currentTiming) + { + /* if not select timing mode, sdmmc will handle it automatically*/ + case kSD_TimingSDR12DefaultMode: +#if SDMMCHOST_SUPPORT_SDR104 + case kSD_TimingSDR104Mode: + if (SDMMCHOST_INSTANCE_SUPPORT_SDR104(card->host) != 0) + { + if (((card->cccrflags & SDIO_CCCR_SUPPORT_SDR104) == SDIO_CCCR_SUPPORT_SDR104) && + (card->operationVoltage == kSDMMC_OperationVoltage180V)) + { + card->currentTiming = kSD_TimingSDR104Mode; + targetTiming = SDIO_CCCR_ENABLE_SDR104_MODE; + targetBusFreq = FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_208MHZ); + supportModeFlag = SDIO_CCCR_SUPPORT_SDR104; + break; + } + } + SUPPRESS_FALL_THROUGH_WARNING(); +#endif + +#if SDMMCHOST_SUPPORT_DDR50 + case kSD_TimingDDR50Mode: + if (SDMMCHOST_INSTANCE_SUPPORT_DDR50(card->host) != 0) + { + if (((card->cccrflags & SDIO_CCCR_SUPPORT_DDR50) == SDIO_CCCR_SUPPORT_DDR50) && + (card->operationVoltage == kSDMMC_OperationVoltage180V)) + { + card->currentTiming = kSD_TimingDDR50Mode; + targetTiming = SDIO_CCCR_ENABLE_DDR50_MODE; + targetBusFreq = FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_50MHZ); + supportModeFlag = SDIO_CCCR_SUPPORT_DDR50; + break; + } + } + SUPPRESS_FALL_THROUGH_WARNING(); +#endif + +#if SDMMCHOST_SUPPORT_SDR50 + case kSD_TimingSDR50Mode: + if (SDMMCHOST_INSTANCE_SUPPORT_SDR50(card->host) != 0) + { + if (((card->cccrflags & SDIO_CCCR_SUPPORT_SDR50) == SDIO_CCCR_SUPPORT_SDR50) && + (card->operationVoltage == kSDMMC_OperationVoltage180V)) + { + card->currentTiming = kSD_TimingSDR50Mode; + targetTiming = SDIO_CCCR_ENABLE_SDR50_MODE; + targetBusFreq = FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_100MHZ); + supportModeFlag = SDIO_CCCR_SUPPORT_SDR50; + break; + } + } + SUPPRESS_FALL_THROUGH_WARNING(); +#endif + + case kSD_TimingSDR25HighSpeedMode: + if ((card->cccrflags & SDIO_CCCR_SUPPORT_HIGHSPEED) == SDIO_CCCR_SUPPORT_HIGHSPEED) + { + card->currentTiming = kSD_TimingSDR25HighSpeedMode; + targetTiming = SDIO_CCCR_ENABLE_HIGHSPEED_MODE; + targetBusFreq = FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, SD_CLOCK_50MHZ); + supportModeFlag = SDIO_CCCR_SUPPORT_HIGHSPEED; + break; + } + SUPPRESS_FALL_THROUGH_WARNING(); + + default: + /* default timing mode */ + card->currentTiming = kSD_TimingSDR12DefaultMode; + targetBusFreq = SD_CLOCK_25MHZ; + break; + } + + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, kSDIO_RegBusSpeed, 0U, &temp)) + { + return kStatus_SDMMC_TransferFailed; + } + do + { + temp &= (uint8_t)~SDIO_CCCR_BUS_SPEED_MASK; + temp |= (uint8_t)targetTiming; + + retryTimes--; + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, kSDIO_RegBusSpeed, temp, &temp)) + { + continue; + } + + if ((temp & targetTiming) != targetTiming) + { + continue; + } + + break; + + } while (retryTimes != 0U); + + if (retryTimes == 0U) + { + retryTimes = SDIO_RETRY_TIMES; + /* if cannot switch target timing, it will switch continuously until find a valid timing. */ + card->cccrflags &= ~supportModeFlag; + continue; + } + + break; + + } while (true); + + card->busClock_Hz = + SDMMCHOST_SetCardClock(card->host, FSL_SDMMC_CARD_MAX_BUS_FREQ(card->usrParam.maxFreq, targetBusFreq)); + +#if SDMMCHOST_SUPPORT_DDR50 + /* enable DDR mode if it is the target mode */ + if (card->currentTiming == kSD_TimingDDR50Mode) + { + SDMMCHOST_EnableDDRMode(card->host, true, 0U); + } +#endif + +#if SDMMCHOST_SUPPORT_SDR50 || SDMMCHOST_SUPPORT_SDR104 + + if (card->usrParam.ioStrength != NULL) + { + card->usrParam.ioStrength(card->busClock_Hz); + } + + /* SDR50 and SDR104 mode need tuning */ + if ((card->currentTiming == kSD_TimingSDR50Mode) || (card->currentTiming == kSD_TimingSDR104Mode)) + { + /* execute tuning */ + if (SDIO_ExecuteTuning(card) != kStatus_Success) + { + return kStatus_SDMMC_TuningFail; + } + } + +#endif + + return kStatus_Success; +} + +status_t SDIO_SetDriverStrength(sdio_card_t *card, sd_driver_strength_t driverStrength) +{ + uint8_t strength = 0U, temp = 0U; + + switch (driverStrength) + { + case kSD_DriverStrengthTypeA: + strength = SDIO_CCCR_ENABLE_DRIVER_TYPE_A; + break; + case kSD_DriverStrengthTypeC: + strength = SDIO_CCCR_ENABLE_DRIVER_TYPE_C; + break; + case kSD_DriverStrengthTypeD: + strength = SDIO_CCCR_ENABLE_DRIVER_TYPE_D; + break; + default: + strength = SDIO_CCCR_ENABLE_DRIVER_TYPE_B; + break; + } + + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, kSDIO_RegDriverStrength, 0U, &temp)) + { + return kStatus_SDMMC_TransferFailed; + } + + temp &= (uint8_t)~SDIO_CCCR_DRIVER_TYPE_MASK; + temp |= strength; + + return SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, kSDIO_RegDriverStrength, temp, &temp); +} + +status_t SDIO_EnableAsyncInterrupt(sdio_card_t *card, bool enable) +{ + assert(card != NULL); + + uint8_t eai = 0U; + + if ((card->cccrflags & SDIO_CCCR_SUPPORT_ASYNC_INT) == 0U) + { + return kStatus_SDMMC_NotSupportYet; + } + + /* load interrupt enable register */ + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, kSDIO_RegInterruptExtension, 0U, &eai)) + { + return kStatus_SDMMC_TransferFailed; + } + /* if already enable/disable , do not need enable/disable again */ + if (((eai)&SDIO_CCCR_ENABLE_AYNC_INT) == (enable ? SDIO_CCCR_ENABLE_AYNC_INT : 0U)) + { + return kStatus_Success; + } + + /* enable the eai */ + if (enable) + { + eai |= SDIO_CCCR_ENABLE_AYNC_INT; + } + else + { + eai &= (uint8_t) ~(SDIO_CCCR_ENABLE_AYNC_INT); + } + + /* write to register */ + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, kSDIO_RegInterruptExtension, eai, &eai)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +static status_t SDIO_DecodeCIS( + sdio_card_t *card, sdio_func_num_t func, uint8_t *dataBuffer, uint32_t tplCode, uint32_t tplLink) +{ + assert(card != NULL); + assert(dataBuffer != NULL); + + if (func == kSDIO_FunctionNum0) + { + /* only decode MANIFID,FUNCID,FUNCE here */ + if (tplCode == SDIO_TPL_CODE_MANIFID) + { + card->commonCIS.mID = dataBuffer[0U] | ((uint16_t)dataBuffer[1U] << 8U); + card->commonCIS.mInfo = dataBuffer[2U] | ((uint16_t)dataBuffer[3U] << 8U); + } + else if (tplCode == SDIO_TPL_CODE_FUNCID) + { + card->commonCIS.funcID = dataBuffer[0U]; + } + else if (tplCode == SDIO_TPL_CODE_FUNCE) + { + /* max transfer block size and data size */ + card->commonCIS.fn0MaxBlkSize = dataBuffer[1U] | ((uint16_t)dataBuffer[2U] << 8U); + /* max transfer speed */ + card->commonCIS.maxTransSpeed = dataBuffer[3U]; + } + else + { + /* reserved here */ + return kStatus_Fail; + } + } + else + { + /* only decode FUNCID,FUNCE here */ + if (tplCode == SDIO_TPL_CODE_FUNCID) + { + card->funcCIS[(uint32_t)func - 1U].funcID = dataBuffer[0U]; + } + else if (tplCode == SDIO_TPL_CODE_FUNCE) + { + if (tplLink == 0x2AU) + { + card->funcCIS[(uint32_t)func - 1U].funcInfo = dataBuffer[1U]; + card->funcCIS[(uint32_t)func - 1U].ioVersion = dataBuffer[2U]; + card->funcCIS[(uint32_t)func - 1U].cardPSN = dataBuffer[3U] | ((uint32_t)dataBuffer[4U] << 8U) | + ((uint32_t)dataBuffer[5U] << 16U) | + ((uint32_t)dataBuffer[6U] << 24U); + card->funcCIS[(uint32_t)func - 1U].ioCSASize = dataBuffer[7U] | ((uint32_t)dataBuffer[8U] << 8U) | + ((uint32_t)dataBuffer[9U] << 16U) | + ((uint32_t)dataBuffer[10U] << 24U); + card->funcCIS[(uint32_t)func - 1U].ioCSAProperty = dataBuffer[11U]; + card->funcCIS[(uint32_t)func - 1U].ioMaxBlockSize = dataBuffer[12U] | ((uint16_t)dataBuffer[13U] << 8U); + card->funcCIS[(uint32_t)func - 1U].ioOCR = dataBuffer[14U] | ((uint32_t)dataBuffer[15U] << 8U) | + ((uint32_t)dataBuffer[16U] << 16U) | + ((uint32_t)dataBuffer[17U] << 24U); + card->funcCIS[(uint32_t)func - 1U].ioOPMinPwr = dataBuffer[18U]; + card->funcCIS[(uint32_t)func - 1U].ioOPAvgPwr = dataBuffer[19U]; + card->funcCIS[(uint32_t)func - 1U].ioOPMaxPwr = dataBuffer[20U]; + card->funcCIS[(uint32_t)func - 1U].ioSBMinPwr = dataBuffer[21U]; + card->funcCIS[(uint32_t)func - 1U].ioSBAvgPwr = dataBuffer[22U]; + card->funcCIS[(uint32_t)func - 1U].ioSBMaxPwr = dataBuffer[23U]; + card->funcCIS[(uint32_t)func - 1U].ioMinBandWidth = dataBuffer[24U] | ((uint16_t)dataBuffer[25U] << 8U); + card->funcCIS[(uint32_t)func - 1U].ioOptimumBandWidth = + dataBuffer[26U] | ((uint16_t)dataBuffer[27U] << 8U); + card->funcCIS[(uint32_t)func - 1U].ioReadyTimeout = dataBuffer[28U] | ((uint16_t)dataBuffer[29U] << 8U); + + card->funcCIS[(uint32_t)func - 1U].ioHighCurrentAvgCurrent = + dataBuffer[34U] | ((uint16_t)dataBuffer[35U] << 8U); + card->funcCIS[(uint32_t)func - 1U].ioHighCurrentMaxCurrent = + dataBuffer[36U] | ((uint16_t)dataBuffer[37U] << 8U); + card->funcCIS[(uint32_t)func - 1U].ioLowCurrentAvgCurrent = + dataBuffer[38U] | ((uint16_t)dataBuffer[39U] << 8U); + card->funcCIS[(uint32_t)func - 1U].ioLowCurrentMaxCurrent = + dataBuffer[40U] | ((uint16_t)dataBuffer[41U] << 8U); + } + else + { + return kStatus_Fail; + } + } + else + { + return kStatus_Fail; + } + } + + return kStatus_Success; +} + +status_t SDIO_ReadCIS(sdio_card_t *card, sdio_func_num_t func, const uint32_t *tupleList, uint32_t tupleNum) +{ + assert(card != NULL); + assert(func <= kSDIO_FunctionNum7); + assert(tupleList != NULL); + + uint8_t tplCode = 0U; + uint8_t tplLink = 0U; + uint32_t cisPtr = 0U; + uint32_t i = 0U, num = 0U; + bool tupleMatch = false; + + uint8_t dataBuffer[255U] = {0U}; + + /* get the CIS pointer for each function */ + if (func == kSDIO_FunctionNum0) + { + cisPtr = card->commonCISPointer; + } + else + { + cisPtr = card->ioFBR[(uint32_t)func - 1U].ioPointerToCIS; + } + + if (0U == cisPtr) + { + return kStatus_SDMMC_SDIO_ReadCISFail; + } + + do + { + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, cisPtr++, 0U, &tplCode)) + { + return kStatus_SDMMC_TransferFailed; + } + /* end of chain tuple */ + if (tplCode == 0xFFU) + { + break; + } + + if (tplCode == 0U) + { + continue; + } + + for (i = 0; i < tupleNum; i++) + { + if (tplCode == tupleList[i]) + { + tupleMatch = true; + break; + } + } + + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, cisPtr++, 0U, &tplLink)) + { + return kStatus_SDMMC_TransferFailed; + } + /* end of chain tuple */ + if (tplLink == 0xFFU) + { + break; + } + + if (tupleMatch) + { + (void)memset(dataBuffer, 0, 255U); + for (i = 0; i < tplLink; i++) + { + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, cisPtr++, 0U, &dataBuffer[i])) + { + return kStatus_SDMMC_TransferFailed; + } + } + tupleMatch = false; + /* pharse the data */ + (void)SDIO_DecodeCIS(card, func, dataBuffer, tplCode, tplLink); + /* read finish then return */ + if (++num == tupleNum) + { + break; + } + } + else + { + /* move pointer */ + cisPtr += tplLink; + /* tuple code not match,continue read tuple code */ + continue; + } + } while (true); + return kStatus_Success; +} + +static status_t SDIO_ProbeBusVoltage(sdio_card_t *card) +{ + assert(card != NULL); + + uint32_t ocr = 0U, accept1V8 = 0U; + status_t error = kStatus_Success; + + /* application able to set the supported voltage window */ + if ((card->ocr & SDIO_OCR_VOLTAGE_WINDOW_MASK) != 0U) + { + ocr = card->ocr & SDIO_OCR_VOLTAGE_WINDOW_MASK; + } + else + { + /* 3.3V voltage should be supported as default */ + ocr |= SDMMC_MASK(kSD_OcrVdd29_30Flag) | SDMMC_MASK(kSD_OcrVdd32_33Flag) | SDMMC_MASK(kSD_OcrVdd33_34Flag); + } + +#if SDMMCHOST_SUPPORT_DDR50 || SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 + if ((card->operationVoltage != kSDMMC_OperationVoltage180V) && + (SDMMCHOST_INSTANCE_SUPPORT_1V8_SIGNAL(card->host) != 0)) + { + /* allow user select the work voltage, if not select, sdmmc will handle it automatically */ + ocr |= SDMMC_MASK(kSD_OcrSwitch18RequestFlag); + + if ((card->usrParam.ioVoltage != NULL) && (card->usrParam.ioVoltage->type == kSD_IOVoltageCtrlByGpio)) + { + /* make sure card signal line voltage is 3.3v before initalization */ + if (card->usrParam.ioVoltage->func != NULL) + { + card->usrParam.ioVoltage->func(kSDMMC_OperationVoltage330V); + } + } + else if ((card->usrParam.ioVoltage != NULL) && (card->usrParam.ioVoltage->type == kSD_IOVoltageCtrlByHost)) + { + SDMMCHOST_SwitchToVoltage(card->host, (uint32_t)kSDMMC_OperationVoltage330V); + } + else + { + ocr &= ~SDMMC_MASK(kSD_OcrSwitch18RequestFlag); + } + } + +#endif + + do + { + /* card go idle */ + if (kStatus_Success != SDIO_GoIdle(card)) + { + return kStatus_SDMMC_GoIdleFailed; + } + + /* Get IO OCR-CMD5 with arg0 ,set new voltage if needed*/ + if (kStatus_Success != SDIO_SendOperationCondition(card, 0U, NULL)) + { + return kStatus_SDMMC_HandShakeOperationConditionFailed; + } + + if (kStatus_Success != SDIO_SendOperationCondition(card, ocr, &accept1V8)) + { + return kStatus_SDMMC_InvalidVoltage; + } + +#if SDMMCHOST_SUPPORT_DDR50 || SDMMCHOST_SUPPORT_SDR104 || SDMMCHOST_SUPPORT_SDR50 + /* check if card support 1.8V */ + if ((accept1V8 & SDMMC_MASK(kSD_OcrSwitch18AcceptFlag)) != 0U) + { + if ((card->usrParam.ioVoltage != NULL) && (card->usrParam.ioVoltage->type == kSD_IOVoltageCtrlNotSupport)) + { + break; + } + + error = SDIO_SwitchVoltage(card, kSDMMC_OperationVoltage180V); + if (kStatus_SDMMC_SwitchVoltageFail == error) + { + break; + } + + if (error == kStatus_SDMMC_SwitchVoltage18VFail33VSuccess) + { + ocr &= ~SDMMC_MASK(kSD_OcrSwitch18RequestFlag); + error = kStatus_Success; + continue; + } + else + { + card->operationVoltage = kSDMMC_OperationVoltage180V; + break; + } + } +#endif + break; + } while (true); + + return error; +} + +status_t SDIO_CardInit(sdio_card_t *card) +{ + assert(card != NULL); + + status_t error = kStatus_Success; + + if (!card->isHostReady) + { + return kStatus_SDMMC_HostNotReady; + } + /* Identify mode ,set clock to 400KHZ. */ + card->busClock_Hz = SDMMCHOST_SetCardClock(card->host, SDMMC_CLOCK_400KHZ); + SDMMCHOST_SetCardBusWidth(card->host, kSDMMC_BusWdith1Bit); + SDMMCHOST_SendCardActive(card->host); + + error = SDIO_ProbeBusVoltage(card); + if (error != kStatus_Success) + { + return kStatus_SDMMC_SwitchVoltageFail; + } + + /* there is a memonly card */ + if ((card->ioTotalNumber == 0U) && (card->memPresentFlag)) + { + return kStatus_SDMMC_SDIO_InvalidCard; + } + + /* send relative address ,cmd3*/ + if (kStatus_Success != SDIO_SendRca(card)) + { + return kStatus_SDMMC_SendRelativeAddressFailed; + } + /* select card cmd7 */ + if (kStatus_Success != SDIO_SelectCard(card, true)) + { + return kStatus_SDMMC_SelectCardFailed; + } + + /* get card capability */ + if (kStatus_Success != SDIO_GetCardCapability(card, kSDIO_FunctionNum0)) + { + return kStatus_SDMMC_TransferFailed; + } + + /* read common CIS here */ + if (SDIO_ReadCIS(card, kSDIO_FunctionNum0, s_tupleList, SDIO_COMMON_CIS_TUPLE_NUM) != kStatus_Success) + { + return kStatus_SDMMC_SDIO_ReadCISFail; + } + + /* switch data bus width */ + if (kStatus_Success != SDIO_SetMaxDataBusWidth(card)) + { + return kStatus_SDMMC_SetDataBusWidthFailed; + } + + /* trying switch to card support timing mode. */ + if (kStatus_Success != SDIO_SelectBusTiming(card)) + { + return kStatus_SDMMC_SDIO_SwitchHighSpeedFail; + } + + return kStatus_Success; +} + +void SDIO_CardDeinit(sdio_card_t *card) +{ + assert(card != NULL); + + (void)SDIO_CardReset(card); + (void)SDIO_SelectCard(card, false); +} + +status_t SDIO_HostInit(sdio_card_t *card) +{ + assert(card != NULL); + + if ((!card->isHostReady) && (SDMMCHOST_Init(card->host) != kStatus_Success)) + { + return kStatus_Fail; + } + + if ((card->usrParam.cd->type == kSD_DetectCardByHostCD) || (card->usrParam.cd->type == kSD_DetectCardByHostDATA3)) + { + (void)SDMMCHOST_CardDetectInit(card->host, card->usrParam.cd); + } + + if (card->usrParam.sdioInt != NULL) + { + (void)SDMMCHOST_CardIntInit(card->host, card->usrParam.sdioInt); + } + + /* set the host status flag, after the card re-plug in, don't need init host again */ + card->isHostReady = true; + + return kStatus_Success; +} + +void SDIO_HostDeinit(sdio_card_t *card) +{ + assert(card != NULL); + + SDMMCHOST_Deinit(card->host); + + /* should re-init host */ + card->isHostReady = false; +} + +void SDIO_HostReset(SDMMCHOST_CONFIG *host) +{ + SDMMCHOST_Reset(host); +} + +void SDIO_HostDoReset(sdio_card_t *card) +{ + SDMMCHOST_Reset(card->host); +} + +status_t SDIO_WaitCardDetectStatus(SDMMCHOST_TYPE *hostBase, const sdmmchost_detect_card_t *cd, bool waitCardStatus) +{ + return SDMMCHOST_WaitCardDetectStatus(hostBase, cd, waitCardStatus); +} + +status_t SDIO_PollingCardInsert(sdio_card_t *card, uint32_t status) +{ + assert(card != NULL); + assert(card->usrParam.cd != NULL); + + if (card->usrParam.cd->type == kSD_DetectCardByGpioCD) + { + if (card->usrParam.cd->cardDetected == NULL) + { + return kStatus_Fail; + } + + do + { + if ((card->usrParam.cd->cardDetected() == true) && (status == (uint32_t)kSD_Inserted)) + { + SDMMC_OSADelay(card->usrParam.cd->cdDebounce_ms); + if (card->usrParam.cd->cardDetected() == true) + { + break; + } + } + + if ((card->usrParam.cd->cardDetected() == false) && (status == (uint32_t)kSD_Removed)) + { + break; + } + } while (true); + } + else + { + if (card->isHostReady == false) + { + return kStatus_Fail; + } + + if (SDMMCHOST_PollingCardDetectStatus(card->host, status, ~0U) != kStatus_Success) + { + return kStatus_Fail; + } + } + + return kStatus_Success; +} + +bool SDIO_IsCardPresent(sdio_card_t *card) +{ + assert(card != NULL); + assert(card->usrParam.cd != NULL); + + if (card->usrParam.cd->type == kSD_DetectCardByGpioCD) + { + if (card->usrParam.cd->cardDetected == NULL) + { + return false; + } + return card->usrParam.cd->cardDetected(); + } + else + { + if (card->isHostReady == false) + { + return false; + } + + if (SDMMCHOST_CardDetectStatus(card->host) == (uint32_t)kSD_Removed) + { + return false; + } + } + + return true; +} + +void SDIO_PowerOnCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr) +{ + SDMMCHOST_PowerOnCard(base, pwr); +} + +void SDIO_PowerOffCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr) +{ + SDMMCHOST_PowerOffCard(base, pwr); +} + +void SDIO_SetCardPower(sdio_card_t *card, bool enable) +{ + assert(card != NULL); + + if (card->usrParam.pwr != NULL) + { + card->usrParam.pwr(enable); + } + else + { + SDMMCHOST_SetCardPower(card->host, enable); + } + + SDMMC_OSADelay(SDIO_POWER_RESET_DELAY); +} + +status_t SDIO_Init(sdio_card_t *card) +{ + assert(card != NULL); + assert(card->host != NULL); + + if (!card->isHostReady) + { + if (SDIO_HostInit(card) != kStatus_Success) + { + return kStatus_SDMMC_HostNotReady; + } + } + else + { + /* reset the host */ + SDIO_HostReset(card->host); + } + + /* card detect */ + if (SDIO_PollingCardInsert(card, kSD_Inserted) != kStatus_Success) + { + return kStatus_SDMMC_CardDetectFailed; + } + /* power off card */ + SDIO_SetCardPower(card, false); + /* power on card */ + SDIO_SetCardPower(card, true); + + return SDIO_CardInit(card); +} + +void SDIO_Deinit(sdio_card_t *card) +{ + assert(card != NULL); + + SDIO_CardDeinit(card); + SDIO_HostDeinit(card); +} + +status_t SDIO_EnableIOInterrupt(sdio_card_t *card, sdio_func_num_t func, bool enable) +{ + assert(card != NULL); + assert(func <= kSDIO_FunctionNum7); + + uint8_t intEn = 0U; + + /* load io interrupt enable register */ + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, kSDIO_RegIOIntEnable, 0U, &intEn)) + { + return kStatus_SDMMC_TransferFailed; + } + + if (enable) + { + /* if already enable , do not need enable again */ + if ((((intEn >> (uint32_t)func) & 0x01U) == 0x01U) && ((intEn & 0x01U) != 0U)) + { + return kStatus_Success; + } + + /* enable the interrupt and interrupt master */ + intEn |= (1U << (uint32_t)func) | 0x01U; + card->ioIntNums++; + } + else + { + /* if already disable , do not need enable again */ + if (((intEn >> (uint32_t)func) & 0x01U) == 0x00U) + { + return kStatus_Success; + } + + /* disable the interrupt, don't disable the interrupt master here */ + intEn &= ~(1U << (uint32_t)func); + if (card->ioIntNums != 0U) + { + card->ioIntNums--; + } + } + + /* write to register */ + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, kSDIO_RegIOIntEnable, intEn, &intEn)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t SDIO_GetPendingInterrupt(sdio_card_t *card, uint8_t *pendingInt) +{ + assert(card != NULL); + + /* load io interrupt enable register */ + + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, kSDIO_RegIOIntPending, 0U, pendingInt)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t SDIO_EnableIO(sdio_card_t *card, sdio_func_num_t func, bool enable) +{ + assert(card != NULL); + assert(func <= kSDIO_FunctionNum7); + assert(func != kSDIO_FunctionNum0); + + uint8_t ioEn = 0U, ioReady = 0U; + volatile uint32_t i = SDIO_RETRY_TIMES; + uint32_t ioReadyTimeoutMS = + (uint32_t)card->funcCIS[(uint32_t)func - 1U].ioReadyTimeout * SDIO_IO_READY_TIMEOUT_UNIT; + + if (ioReadyTimeoutMS != 0U) + { + /* do not poll the IO ready status, but use IO ready timeout */ + i = 1U; + } + + /* load io enable register */ + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, kSDIO_RegIOEnable, 0U, &ioEn)) + { + return kStatus_SDMMC_TransferFailed; + } + /* if already enable/disable , do not need enable/disable again */ + if (((ioEn >> (uint8_t)func) & 0x01U) == (enable ? 1U : 0U)) + { + return kStatus_Success; + } + + /* enable the io */ + if (enable) + { + ioEn |= (1U << (uint32_t)func); + } + else + { + ioEn &= ~(1U << (uint32_t)func); + } + + /* write to register */ + if (kStatus_Success != SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, kSDIO_RegIOEnable, ioEn, &ioEn)) + { + return kStatus_SDMMC_TransferFailed; + } + + /* if enable io, need check the IO ready status */ + if (enable) + { + do + { + SDMMC_OSADelay(ioReadyTimeoutMS); + /* wait IO ready */ + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IORead, kSDIO_FunctionNum0, kSDIO_RegIOReady, 0U, &ioReady)) + { + return kStatus_SDMMC_TransferFailed; + } + /* check if IO ready */ + if ((ioReady & (1U << (uint32_t)func)) != 0U) + { + return kStatus_Success; + } + + i--; + } while (i != 0U); + + return kStatus_Fail; + } + + return kStatus_Success; +} + +status_t SDIO_SelectIO(sdio_card_t *card, sdio_func_num_t func) +{ + assert(card != NULL); + assert(func <= kSDIO_FunctionMemory); + + uint8_t ioSel = (uint8_t)func; + + /* write to register */ + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, kSDIO_RegFunctionSelect, ioSel, &ioSel)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +status_t SDIO_AbortIO(sdio_card_t *card, sdio_func_num_t func) +{ + assert(card != NULL); + assert(func <= kSDIO_FunctionNum7); + + uint8_t ioAbort = (uint8_t)func; + + /* write to register */ + if (kStatus_Success != + SDIO_IO_RW_Direct(card, kSDIO_IOWrite, kSDIO_FunctionNum0, kSDIO_RegIOAbort, ioAbort, &ioAbort)) + { + return kStatus_SDMMC_TransferFailed; + } + + return kStatus_Success; +} + +void SDIO_SetIOIRQHandler(sdio_card_t *card, sdio_func_num_t func, sdio_io_irq_handler_t handler) +{ + assert(card != NULL); + assert((func <= kSDIO_FunctionNum7) && (func != kSDIO_FunctionNum0)); + + card->ioIRQHandler[(uint32_t)func - 1U] = handler; + card->ioIntIndex = (uint8_t)func; +} + +status_t SDIO_HandlePendingIOInterrupt(sdio_card_t *card) +{ + assert(card != NULL); + + uint8_t i = 0, pendingInt = 0; + + /* call IRQ handler directly if one IRQ handler only */ + if (card->ioIntNums == 1U) + { + if (card->ioIRQHandler[card->ioIntIndex - 1U] != NULL) + { + (card->ioIRQHandler[card->ioIntIndex - 1U])(card, card->ioIntIndex); + } + } + else + { + /* get pending int firstly */ + if (SDIO_GetPendingInterrupt(card, &pendingInt) != kStatus_Success) + { + return kStatus_SDMMC_TransferFailed; + } + + for (i = 1; i <= FSL_SDIO_MAX_IO_NUMS; i++) + { + if ((pendingInt & (1U << i)) != 0U) + { + if ((card->ioIRQHandler[i - 1U]) != NULL) + { + (card->ioIRQHandler[i - 1U])(card, i); + } + } + } + } + + return kStatus_Success; +} diff --git a/middleware/sdmmc/sdio/fsl_sdio.h b/middleware/sdmmc/sdio/fsl_sdio.h new file mode 100644 index 0000000..4887426 --- /dev/null +++ b/middleware/sdmmc/sdio/fsl_sdio.h @@ -0,0 +1,542 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright 2016-2020 NXP + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef _FSL_SDIO_H_ +#define _FSL_SDIO_H_ + +#include "fsl_sdmmc_common.h" + +/*! + * @addtogroup SDIOCARD + * @{ + */ + +/******************************************************************************* + * Definitions + ******************************************************************************/ +/*! @brief Middleware version. */ +#define FSL_SDIO_DRIVER_VERSION (MAKE_VERSION(2U, 3U, 2U)) /*2.3.2*/ + +/*!@brief sdio device support maximum IO number */ +#ifndef FSL_SDIO_MAX_IO_NUMS +#define FSL_SDIO_MAX_IO_NUMS (7U) +#endif +/*!@brief sdio card descriptor */ +typedef struct _sdio_card sdio_card_t; +/*!@brief sdio io handler */ +typedef void (*sdio_io_irq_handler_t)(sdio_card_t *card, uint32_t func); +/*! @brief sdio io read/write direction */ +typedef enum _sdio_io_direction +{ + kSDIO_IORead = 0U, /*!< io read */ + kSDIO_IOWrite = 1U, /*!< io write */ +} sdio_io_direction_t; + +/*! + * @brief SDIO card state + * + * Define the card structure including the necessary fields to identify and describe the card. + */ +struct _sdio_card +{ + sdmmchost_t *host; /*!< Host information */ + sdio_usr_param_t usrParam; /*!< user parameter */ + bool noInternalAlign; /*!< use this flag to disable sdmmc align. If disable, sdmmc will not make sure the + data buffer address is word align, otherwise all the transfer are align to low level driver */ + uint8_t internalBuffer[FSL_SDMMC_CARD_INTERNAL_BUFFER_SIZE]; /*!< internal buffer */ + + bool isHostReady; /*!< use this flag to indicate if need host re-init or not*/ + bool memPresentFlag; /*!< indicate if memory present */ + + uint32_t busClock_Hz; /*!< SD bus clock frequency united in Hz */ + uint32_t relativeAddress; /*!< Relative address of the card */ + uint8_t sdVersion; /*!< SD version */ + sd_timing_mode_t currentTiming; /*!< current timing mode */ + sd_driver_strength_t driverStrength; /*!< driver strength */ + sd_max_current_t maxCurrent; /*!< card current limit */ + sdmmc_operation_voltage_t operationVoltage; /*!< card operation voltage */ + + uint8_t sdioVersion; /*!< SDIO version */ + uint8_t cccrVersioin; /*!< CCCR version */ + uint8_t ioTotalNumber; /*!< total number of IO function */ + uint32_t cccrflags; /*!< Flags in _sd_card_flag */ + uint32_t io0blockSize; /*!< record the io0 block size*/ + uint32_t ocr; /*!< Raw OCR content, only 24bit avalible for SDIO card */ + uint32_t commonCISPointer; /*!< point to common CIS */ + sdio_common_cis_t commonCIS; /*!< CIS table */ + + /* io registers/IRQ handler */ + sdio_fbr_t ioFBR[FSL_SDIO_MAX_IO_NUMS]; /*!< FBR table */ + sdio_func_cis_t funcCIS[FSL_SDIO_MAX_IO_NUMS]; /*!< function CIS table*/ + sdio_io_irq_handler_t ioIRQHandler[FSL_SDIO_MAX_IO_NUMS]; /*!< io IRQ handler */ + uint8_t ioIntIndex; /*!< used to record current enabled io interrupt index */ + uint8_t ioIntNums; /*!< used to record total enabled io interrupt numbers */ +}; + +/************************************************************************************************* + * API + ************************************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif +/*! + * @name Initialization and deinitialization + * @{ + */ + +/*! + * @brief SDIO card init function + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_GoIdleFailed + * @retval kStatus_SDMMC_HandShakeOperationConditionFailed + * @retval kStatus_SDMMC_SDIO_InvalidCard + * @retval kStatus_SDMMC_SDIO_InvalidVoltage + * @retval kStatus_SDMMC_SendRelativeAddressFailed + * @retval kStatus_SDMMC_SelectCardFailed + * @retval kStatus_SDMMC_SDIO_SwitchHighSpeedFail + * @retval kStatus_SDMMC_SDIO_ReadCISFail + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_Init(sdio_card_t *card); + +/*! + * @brief SDIO card deinit, include card and host deinit. + * + * @param card Card descriptor. + */ +void SDIO_Deinit(sdio_card_t *card); + +/*! + * @brief Initializes the card. + * + * This function initializes the card only, make sure the host is ready when call this function, + * otherwise it will return kStatus_SDMMC_HostNotReady. + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_HostNotReady host is not ready. + * @retval kStatus_SDMMC_GoIdleFailed Go idle failed. + * @retval kStatus_SDMMC_NotSupportYet Card not support. + * @retval kStatus_SDMMC_SendOperationConditionFailed Send operation condition failed. + * @retval kStatus_SDMMC_AllSendCidFailed Send CID failed. + * @retval kStatus_SDMMC_SendRelativeAddressFailed Send relative address failed. + * @retval kStatus_SDMMC_SendCsdFailed Send CSD failed. + * @retval kStatus_SDMMC_SelectCardFailed Send SELECT_CARD command failed. + * @retval kStatus_SDMMC_SendScrFailed Send SCR failed. + * @retval kStatus_SDMMC_SetBusWidthFailed Set bus width failed. + * @retval kStatus_SDMMC_SwitchHighSpeedFailed Switch high speed failed. + * @retval kStatus_SDMMC_SetCardBlockSizeFailed Set card block size failed. + * @retval kStatus_Success Operate successfully. + */ +status_t SDIO_CardInit(sdio_card_t *card); + +/*! + * @brief Deinitializes the card. + * + * This function deinitializes the specific card. + * + * @param card Card descriptor. + */ +void SDIO_CardDeinit(sdio_card_t *card); + +/*! + * @brief initialize the host. + * + * This function deinitializes the specific host. + * + * @param card Card descriptor. + */ +status_t SDIO_HostInit(sdio_card_t *card); + +/*! + * @brief Deinitializes the host. + * + * This function deinitializes the host. + * + * @param card Card descriptor. + */ +void SDIO_HostDeinit(sdio_card_t *card); + +/*! + * @brief reset the host. + * + * This function reset the specific host. + * + * @deprecated Do not use this function. It has been superceded by @ref SDIO_HostDoReset. + * + * @param host host descriptor. + */ +void SDIO_HostReset(SDMMCHOST_CONFIG *host); + +/*! + * @brief reset the host. + * + * This function reset the specific host. + * + * @param card Card descriptor. + */ +void SDIO_HostDoReset(sdio_card_t *card); + +/*! + * @brief power on card. + * + * The power on operation depend on host or the user define power on function. + * + * @deprecated Do not use this function. It has been superceded by @ref SDIO_SetCardPower. + * + * @param base host base address. + * @param pwr user define power control configuration + */ +void SDIO_PowerOnCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr); + +/*! + * @brief power on card. + * + * The power off operation depend on host or the user define power on function. + * @deprecated Do not use this function. It has been superceded by @ref SDIO_SetCardPower. + * + * @param base host base address. + * @param pwr user define power control configuration + */ +void SDIO_PowerOffCard(SDMMCHOST_TYPE *base, const sdmmchost_pwr_card_t *pwr); + +/*! + * @brief set card power. + * + * The power off operation depend on host or the user define power on function. + * @param card card descriptor. + * @param enable true is power on, false is power off. + */ +void SDIO_SetCardPower(sdio_card_t *card, bool enable); + +/*! + * @brief set SDIO card to inactive state + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_CardInActive(sdio_card_t *card); + +/*! + * @brief get SDIO card capability + * + * @param card Card descriptor. + * @param func IO number + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_GetCardCapability(sdio_card_t *card, sdio_func_num_t func); + +/*! + * @brief set SDIO card block size + * + * @param card Card descriptor. + * @param func io number + * @param blockSize block size + * @retval kStatus_SDMMC_SetCardBlockSizeFailed + * @retval kStatus_SDMMC_SDIO_InvalidArgument + * @retval kStatus_Success + */ +status_t SDIO_SetBlockSize(sdio_card_t *card, sdio_func_num_t func, uint32_t blockSize); + +/*! + * @brief set SDIO card reset + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_CardReset(sdio_card_t *card); + +/*! + * @brief set SDIO card data bus width + * + * @param card Card descriptor. + * @param busWidth bus width + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_SetDataBusWidth(sdio_card_t *card, sdio_bus_width_t busWidth); + +/*! + * @brief switch the card to high speed + * + * @param card Card descriptor. + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_SDMMC_SDIO_SwitchHighSpeedFail + * @retval kStatus_Success + */ +status_t SDIO_SwitchToHighSpeed(sdio_card_t *card); + +/*! + * @brief read SDIO card CIS for each function + * + * @param card Card descriptor. + * @param func io number + * @param tupleList code list + * @param tupleNum code number + * @retval kStatus_SDMMC_SDIO_ReadCISFail + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_ReadCIS(sdio_card_t *card, sdio_func_num_t func, const uint32_t *tupleList, uint32_t tupleNum); + +/*! + * @brief sdio wait card detect function. + * + * Detect card through GPIO, CD, DATA3. + * + * @deprecated Do not use this function. It has been superceded by @ref SDIO_PollingCardInsert. + * @param hostBase card descriptor. + * @param cd detect configuration + * @param waitCardStatus wait card detect status + */ +status_t SDIO_WaitCardDetectStatus(SDMMCHOST_TYPE *hostBase, const sdmmchost_detect_card_t *cd, bool waitCardStatus); + +/*! + * @brief sdio wait card detect function. + * + * Detect card through GPIO, CD, DATA3. + * @param card card descriptor. + * @param status detect status, kSD_Inserted or kSD_Removed. + */ +status_t SDIO_PollingCardInsert(sdio_card_t *card, uint32_t status); + +/*! + * @brief sdio card present check function. + * + * @param card card descriptor. + */ +bool SDIO_IsCardPresent(sdio_card_t *card); + +/* @} */ + +/*! + * @name IO operations + * @{ + */ + +/*! + * @brief IO direct write transfer function + * + * @param card Card descriptor. + * @param func IO numner + * @param regAddr register address + * @param data the data pinter to write + * @param raw flag, indicate read after write or write only + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_IO_Write_Direct(sdio_card_t *card, sdio_func_num_t func, uint32_t regAddr, uint8_t *data, bool raw); + +/*! + * @brief IO direct read transfer function + * + * @param card Card descriptor. + * @param func IO number + * @param regAddr register address + * @param data pointer to read + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_IO_Read_Direct(sdio_card_t *card, sdio_func_num_t func, uint32_t regAddr, uint8_t *data); + +/*! + * @brief IO direct read/write transfer function + * + * @param card Card descriptor. + * @param direction io access direction, please reference sdio_io_direction_t. + * @param func IO number + * @param regAddr register address + * @param dataIn data to write + * @param dataOut data pointer for readback data, support both for read and write, when application want readback + * the data after write command, dataOut should not be NULL. + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ + +status_t SDIO_IO_RW_Direct(sdio_card_t *card, + sdio_io_direction_t direction, + sdio_func_num_t func, + uint32_t regAddr, + uint8_t dataIn, + uint8_t *dataOut); + +/*! + * @brief IO extended write transfer function + * + * @param card Card descriptor. + * @param func IO number + * @param regAddr register address + * @param buffer data buffer to write + * @param count data count + * @param flags write flags + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_SDMMC_SDIO_InvalidArgument + * @retval kStatus_Success + */ +status_t SDIO_IO_Write_Extended( + sdio_card_t *card, sdio_func_num_t func, uint32_t regAddr, uint8_t *buffer, uint32_t count, uint32_t flags); +/*! + * @brief IO extended read transfer function + * + * @param card Card descriptor. + * @param func IO number + * @param regAddr register address + * @param buffer data buffer to read + * @param count data count + * @param flags write flags + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_SDMMC_SDIO_InvalidArgument + * @retval kStatus_Success + */ +status_t SDIO_IO_Read_Extended( + sdio_card_t *card, sdio_func_num_t func, uint32_t regAddr, uint8_t *buffer, uint32_t count, uint32_t flags); +/*! + * @brief enable IO interrupt + * + * @param card Card descriptor. + * @param func IO number + * @param enable enable/disable flag + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_EnableIOInterrupt(sdio_card_t *card, sdio_func_num_t func, bool enable); + +/*! + * @brief enable IO and wait IO ready + * + * @param card Card descriptor. + * @param func IO number + * @param enable enable/disable flag + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_EnableIO(sdio_card_t *card, sdio_func_num_t func, bool enable); + +/*! + * @brief select IO + * + * @param card Card descriptor. + * @param func IO number + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_SelectIO(sdio_card_t *card, sdio_func_num_t func); + +/*! + * @brief Abort IO transfer + * + * @param card Card descriptor. + * @param func IO number + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_AbortIO(sdio_card_t *card, sdio_func_num_t func); + +/*! + * @brief Set driver strength. + * + * @param card Card descriptor. + * @param driverStrength target driver strength. + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_SetDriverStrength(sdio_card_t *card, sd_driver_strength_t driverStrength); + +/*! + * @brief Enable/Disable Async interrupt. + * + * @param card Card descriptor. + * @param enable true is enable, false is disable. + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_EnableAsyncInterrupt(sdio_card_t *card, bool enable); + +/*! + * @brief Get pending interrupt. + * + * @param card Card descriptor. + * @param pendingInt pointer store pending interrupt + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_GetPendingInterrupt(sdio_card_t *card, uint8_t *pendingInt); + +/*! + * @brief sdio card io transfer function. + * This function can be used for trnansfer direct/extend command. + * Please pay attention to the non-align data buffer address transfer, + * if data buffer address can not meet host controller internal DMA requirement, sdio driver will try to use + internal align buffer if data size is not bigger than internal buffer size, + * Align address transfer always can get a better performance, so if application want sdio driver make sure buffer + address align, + * please redefine the SDMMC_GLOBAL_BUFFER_SIZE macro to a value which is big enough for your application. + * + * @param card card descriptor. + * @param cmd command to transfer + * @param argument argument to transfer + * @param blockSize used for block mode. + * @param txData tx buffer pointer or NULL + * @param rxData rx buffer pointer or NULL + * @param dataSize transfer data size + * @param response reponse pointer, if application want read response back, please set it to a NON-NULL pointer. + + */ +status_t SDIO_IO_Transfer(sdio_card_t *card, + sdio_command_t cmd, + uint32_t argument, + uint32_t blockSize, + uint8_t *txData, + uint8_t *rxData, + uint16_t dataSize, + uint32_t *response); + +/*! + * @brief sdio set io IRQ handler. + * + * @param card card descriptor. + * @param func function io number. + * @param handler io IRQ handler. + */ +void SDIO_SetIOIRQHandler(sdio_card_t *card, sdio_func_num_t func, sdio_io_irq_handler_t handler); + +/*! + * @brief sdio card io pending interrupt handle function. + * This function is used to handle the pending io interrupt. + * To reigster a IO IRQ handler, + * @code + * //initialization + * SDIO_EnableIOInterrupt(card, 0, true); + * SDIO_SetIOIRQHandler(card, 0, func0_handler); + * //call it in interrupt callback + * SDIO_HandlePendingIOInterrupt(card); + * @endcode + * To releae a IO IRQ handler, + * @code + * SDIO_EnableIOInterrupt(card, 0, false); + * SDIO_SetIOIRQHandler(card, 0, NULL); + * @endcode + * @param card card descriptor. + * + * @retval kStatus_SDMMC_TransferFailed + * @retval kStatus_Success + */ +status_t SDIO_HandlePendingIOInterrupt(sdio_card_t *card); + +/* @} */ + +#if defined(__cplusplus) +} +#endif + +/* @} */ + +#endif /* _FSL_SDIO_H_*/ diff --git a/rt1050_freertos_hello.mex b/rt1050_freertos_hello.mex index cd5f9e7..683d001 100644 --- a/rt1050_freertos_hello.mex +++ b/rt1050_freertos_hello.mex @@ -29,6 +29,7 @@ + @@ -67,6 +68,11 @@ true + + + true + + true @@ -209,6 +215,13 @@ + + + + + + + @@ -296,7 +309,7 @@ - + @@ -325,8 +338,8 @@ - - + + @@ -545,10 +558,21 @@ 2.0.0 + + + true + + + + + 0.14.0 + + + 9.0.1 @@ -678,6 +702,11 @@ 0 + + + true + + @@ -813,6 +842,99 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/source/FreeRTOSConfig.h b/source/FreeRTOSConfig.h index dbe7163..4fea719 100644 --- a/source/FreeRTOSConfig.h +++ b/source/FreeRTOSConfig.h @@ -67,7 +67,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. /* Memory allocation related definitions. */ #define configSUPPORT_STATIC_ALLOCATION 0 #define configSUPPORT_DYNAMIC_ALLOCATION 1 -#define configTOTAL_HEAP_SIZE ((size_t)(10 * 1024)) +#define configTOTAL_HEAP_SIZE ((size_t)(64 * 1024)) #define configAPPLICATION_ALLOCATED_HEAP 0 /* Hook function related definitions. */ @@ -107,7 +107,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #define INCLUDE_vTaskDelay 1 #define INCLUDE_xTaskGetSchedulerState 1 #define INCLUDE_xTaskGetCurrentTaskHandle 1 -#define INCLUDE_uxTaskGetStackHighWaterMark 0 +#define INCLUDE_uxTaskGetStackHighWaterMark 1 #define INCLUDE_xTaskGetIdleTaskHandle 0 #define INCLUDE_eTaskGetState 0 #define INCLUDE_xTimerPendFunctionCall 1 diff --git a/source/ffconf.h b/source/ffconf.h new file mode 100644 index 0000000..69374e3 --- /dev/null +++ b/source/ffconf.h @@ -0,0 +1,322 @@ +/*---------------------------------------------------------------------------/ +/ This file was generated by the MCUXpresso Config Tools based on +/ FatFs - Generic FAT Filesystem Module R0.14 +/ Any manual edits made to this file will be overwritten if the respective +/ MCUXpresso Config Tools is used to update this file. +/---------------------------------------------------------------------------*/ + +#ifndef _FFCONF_H_ +#define _FFCONF_H_ + +/*---------------------------------------------------------------------------/ +/ FatFs Functional Configurations +/---------------------------------------------------------------------------*/ + +#define FFCONF_DEF 86606 /* Revision ID */ + +/*---------------------------------------------------------------------------/ +/ MSDK adaptation configuration +/---------------------------------------------------------------------------*/ +#define SD_DISK_ENABLE +/* Available options are: +/ RAM_DISK_ENABLE +/ USB_DISK_ENABLE +/ SD_DISK_ENABLE +/ MMC_DISK_ENABLE +/ SDSPI_DISK_ENABLE +/ NAND_DISK_ENABLE */ + +/*---------------------------------------------------------------------------/ +/ Function Configurations +/---------------------------------------------------------------------------*/ + +#define FF_FS_READONLY 0 +/* This option switches read-only configuration. (0:Read/Write or 1:Read-only) +/ Read-only configuration removes writing API functions, f_write(), f_sync(), +/ f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree() +/ and optional writing functions as well. */ + + +#define FF_FS_MINIMIZE 0 +/* This option defines minimization level to remove some basic API functions. +/ +/ 0: Basic functions are fully enabled. +/ 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_truncate() and f_rename() +/ are removed. +/ 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1. +/ 3: f_lseek() function is removed in addition to 2. */ + + +#define FF_USE_STRFUNC 1 +/* This option switches string functions, f_gets(), f_putc(), f_puts() and f_printf(). +/ +/ 0: Disable string functions. +/ 1: Enable without LF-CRLF conversion. +/ 2: Enable with LF-CRLF conversion. */ + + +#define FF_USE_FIND 0 +/* This option switches filtered directory read functions, f_findfirst() and +/ f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */ + + +#define FF_USE_MKFS 1 +/* This option switches f_mkfs() function. (0:Disable or 1:Enable) */ + + +#define FF_USE_FASTSEEK 0 +/* This option switches fast seek function. (0:Disable or 1:Enable) */ + + +#define FF_USE_EXPAND 0 +/* This option switches f_expand function. (0:Disable or 1:Enable) */ + + +#define FF_USE_CHMOD 0 +/* This option switches attribute manipulation functions, f_chmod() and f_utime(). +/ (0:Disable or 1:Enable) Also FF_FS_READONLY needs to be 0 to enable this option. */ + + +#define FF_USE_LABEL 0 +/* This option switches volume label functions, f_getlabel() and f_setlabel(). +/ (0:Disable or 1:Enable) */ + + +#define FF_USE_FORWARD 0 +/* This option switches f_forward() function. (0:Disable or 1:Enable) */ + + +/*---------------------------------------------------------------------------/ +/ Locale and Namespace Configurations +/---------------------------------------------------------------------------*/ + +#define FF_CODE_PAGE 437 +/* This option specifies the OEM code page to be used on the target system. +/ Incorrect code page setting can cause a file open failure. +/ +/ 437 - U.S. +/ 720 - Arabic +/ 737 - Greek +/ 771 - KBL +/ 775 - Baltic +/ 850 - Latin 1 +/ 852 - Latin 2 +/ 855 - Cyrillic +/ 857 - Turkish +/ 860 - Portuguese +/ 861 - Icelandic +/ 862 - Hebrew +/ 863 - Canadian French +/ 864 - Arabic +/ 865 - Nordic +/ 866 - Russian +/ 869 - Greek 2 +/ 932 - Japanese (DBCS) +/ 936 - Simplified Chinese (DBCS) +/ 949 - Korean (DBCS) +/ 950 - Traditional Chinese (DBCS) +/ 0 - Include all code pages above and configured by f_setcp() +*/ + + +#define FF_USE_LFN 2 +#define FF_MAX_LFN 255 +/* The FF_USE_LFN switches the support for LFN (long file name). +/ +/ 0: Disable LFN. FF_MAX_LFN has no effect. +/ 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe. +/ 2: Enable LFN with dynamic working buffer on the STACK. +/ 3: Enable LFN with dynamic working buffer on the HEAP. +/ +/ To enable the LFN, ffunicode.c needs to be added to the project. The LFN function +/ requiers certain internal working buffer occupies (FF_MAX_LFN + 1) * 2 bytes and +/ additional (FF_MAX_LFN + 44) / 15 * 32 bytes when exFAT is enabled. +/ The FF_MAX_LFN defines size of the working buffer in UTF-16 code unit and it can +/ be in range of 12 to 255. It is recommended to be set it 255 to fully support LFN +/ specification. +/ When use stack for the working buffer, take care on stack overflow. When use heap +/ memory for the working buffer, memory management functions, ff_memalloc() and +/ ff_memfree() exemplified in ffsystem.c, need to be added to the project. */ + + +#define FF_LFN_UNICODE 2 +/* This option switches the character encoding on the API when LFN is enabled. +/ +/ 0: ANSI/OEM in current CP (TCHAR = char) +/ 1: Unicode in UTF-16 (TCHAR = WCHAR) +/ 2: Unicode in UTF-8 (TCHAR = char) +/ 3: Unicode in UTF-32 (TCHAR = DWORD) +/ +/ Also behavior of string I/O functions will be affected by this option. +/ When LFN is not enabled, this option has no effect. */ + + +#define FF_LFN_BUF 756 +#define FF_SFN_BUF 34 +/* This set of options defines size of file name members in the FILINFO structure +/ which is used to read out directory items. These values should be suffcient for +/ the file names to read. The maximum possible length of the read file name depends +/ on character encoding. When LFN is not enabled, these options have no effect. */ + + +#define FF_STRF_ENCODE 3 +/* When FF_LFN_UNICODE >= 1 with LFN enabled, string I/O functions, f_gets(), +/ f_putc(), f_puts and f_printf() convert the character encoding in it. +/ This option selects assumption of character encoding ON THE FILE to be +/ read/written via those functions. +/ +/ 0: ANSI/OEM in current CP +/ 1: Unicode in UTF-16LE +/ 2: Unicode in UTF-16BE +/ 3: Unicode in UTF-8 +*/ + + +#define FF_FS_RPATH 2 +/* This option configures support for relative path. +/ +/ 0: Disable relative path and remove related functions. +/ 1: Enable relative path. f_chdir() and f_chdrive() are available. +/ 2: f_getcwd() function is available in addition to 1. +*/ + + +/*---------------------------------------------------------------------------/ +/ Drive/Volume Configurations +/---------------------------------------------------------------------------*/ + +#define FF_VOLUMES 1 +/* Number of volumes (logical drives) to be used. (1-10) */ + + +#define FF_STR_VOLUME_ID 1 +#define FF_VOLUME_STRS "SD" +/* FF_STR_VOLUME_ID switches support for volume ID in arbitrary strings. +/ When FF_STR_VOLUME_ID is set to 1 or 2, arbitrary strings can be used as drive +/ number in the path name. FF_VOLUME_STRS defines the volume ID strings for each +/ logical drives. Number of items must not be less than FF_VOLUMES. Valid +/ characters for the volume ID strings are A-Z, a-z and 0-9, however, they are +/ compared in case-insensitive. If FF_STR_VOLUME_ID >= 1 and FF_VOLUME_STRS is +/ not defined, a user defined volume string table needs to be defined as: +/ +/ const char* VolumeStr[FF_VOLUMES] = {"ram","flash","sd","usb",... +*/ + + +#define FF_MULTI_PARTITION 0 +/* This option switches support for multiple volumes on the physical drive. +/ By default (0), each logical drive number is bound to the same physical drive +/ number and only an FAT volume found on the physical drive will be mounted. +/ When this function is enabled (1), each logical drive number can be bound to +/ arbitrary physical drive and partition listed in the VolToPart[]. Also f_fdisk() +/ function will be available. */ + + +#define FF_MIN_SS 512 +#define FF_MAX_SS 512 +/* This set of options configures the range of sector size to be supported. (512, +/ 1024, 2048 or 4096) Always set both 512 for most systems, generic memory card and +/ harddisk. But a larger value may be required for on-board flash memory and some +/ type of optical media. When FF_MAX_SS is larger than FF_MIN_SS, FatFs is configured +/ for variable sector size mode and disk_ioctl() function needs to implement +/ GET_SECTOR_SIZE command. */ + + +#define FF_LBA64 0 +/* This option switches support for 64-bit LBA. (0:Disable or 1:Enable) +/ To enable the 64-bit LBA, also exFAT needs to be enabled. (FF_FS_EXFAT == 1) */ + + +#define FF_MIN_GPT 0 +/* Minimum number of sectors to switch GPT format to create partition in f_mkfs and +/ f_fdisk function. 0x100000000 max. This option has no effect when FF_LBA64 == 0. */ + + +#define FF_USE_TRIM 0 +/* This option switches support for ATA-TRIM. (0:Disable or 1:Enable) +/ To enable Trim function, also CTRL_TRIM command should be implemented to the +/ disk_ioctl() function. */ + + + +/*---------------------------------------------------------------------------/ +/ System Configurations +/---------------------------------------------------------------------------*/ + +#define FF_FS_TINY 0 +/* This option switches tiny buffer configuration. (0:Normal or 1:Tiny) +/ At the tiny configuration, size of file object (FIL) is shrinked FF_MAX_SS bytes. +/ Instead of private sector buffer eliminated from the file object, common sector +/ buffer in the filesystem object (FATFS) is used for the file data transfer. */ + + +#define FF_FS_EXFAT 1 +/* This option switches support for exFAT filesystem. (0:Disable or 1:Enable) +/ To enable exFAT, also LFN needs to be enabled. (FF_USE_LFN >= 1) +/ Note that enabling exFAT discards ANSI C (C89) compatibility. */ + + +#define FF_FS_NORTC 0 +#define FF_NORTC_MON 1 +#define FF_NORTC_MDAY 1 +#define FF_NORTC_YEAR 2020 +/* The option FF_FS_NORTC switches timestamp functiton. If the system does not have +/ any RTC function or valid timestamp is not needed, set FF_FS_NORTC = 1 to disable +/ the timestamp function. Every object modified by FatFs will have a fixed timestamp +/ defined by FF_NORTC_MON, FF_NORTC_MDAY and FF_NORTC_YEAR in local time. +/ To enable timestamp function (FF_FS_NORTC = 0), get_fattime() function need to be +/ added to the project to read current time form real-time clock. FF_NORTC_MON, +/ FF_NORTC_MDAY and FF_NORTC_YEAR have no effect. +/ These options have no effect in read-only configuration (FF_FS_READONLY = 1). */ + + +#define FF_FS_NOFSINFO 0 +/* If you need to know correct free space on the FAT32 volume, set bit 0 of this +/ option, and f_getfree() function at first time after volume mount will force +/ a full FAT scan. Bit 1 controls the use of last allocated cluster number. +/ +/ bit0=0: Use free cluster count in the FSINFO if available. +/ bit0=1: Do not trust free cluster count in the FSINFO. +/ bit1=0: Use last allocated cluster number in the FSINFO if available. +/ bit1=1: Do not trust last allocated cluster number in the FSINFO. +*/ + + +#define FF_FS_LOCK 0 +/* The option FF_FS_LOCK switches file lock function to control duplicated file open +/ and illegal operation to open objects. This option must be 0 when FF_FS_READONLY +/ is 1. +/ +/ 0: Disable file lock function. To avoid volume corruption, application program +/ should avoid illegal open, remove and rename to the open objects. +/ >0: Enable file lock function. The value defines how many files/sub-directories +/ can be opened simultaneously under file lock control. Note that the file +/ lock control is independent of re-entrancy. */ + + +// #include // O/S definitions +#define FF_FS_REENTRANT 0 +#define FF_FS_TIMEOUT 0 +#define FF_SYNC_t HANDLE +/* The option FF_FS_REENTRANT switches the re-entrancy (thread safe) of the FatFs +/ module itself. Note that regardless of this option, file access to different +/ volume is always re-entrant and volume control functions, f_mount(), f_mkfs() +/ and f_fdisk() function, are always not re-entrant. Only file/directory access +/ to the same volume is under control of this function. +/ +/ 0: Disable re-entrancy. FF_FS_TIMEOUT and FF_SYNC_t have no effect. +/ 1: Enable re-entrancy. Also user provided synchronization handlers, +/ ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj() +/ function, must be added to the project. Samples are available in +/ option/syscall.c. +/ +/ The FF_FS_TIMEOUT defines timeout period in unit of time tick. +/ The FF_SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*, +/ SemaphoreHandle_t and etc. A header file for O/S definitions needs to be +/ included somewhere in the scope of ff.h. */ + + + +/*--- End of configuration options ---*/ + +#endif /* _FFCONF_H_ */ diff --git a/source/ffconf.h.bak b/source/ffconf.h.bak new file mode 100644 index 0000000..37bfb2c --- /dev/null +++ b/source/ffconf.h.bak @@ -0,0 +1,322 @@ +/*---------------------------------------------------------------------------/ +/ This file was generated by the MCUXpresso Config Tools based on +/ FatFs - Generic FAT Filesystem Module R0.14 +/ Any manual edits made to this file will be overwritten if the respective +/ MCUXpresso Config Tools is used to update this file. +/---------------------------------------------------------------------------*/ + +#ifndef _FFCONF_H_ +#define _FFCONF_H_ + +/*---------------------------------------------------------------------------/ +/ FatFs Functional Configurations +/---------------------------------------------------------------------------*/ + +#define FFCONF_DEF 86606 /* Revision ID */ + +/*---------------------------------------------------------------------------/ +/ MSDK adaptation configuration +/---------------------------------------------------------------------------*/ +#define SD_DISK_ENABLE +/* Available options are: +/ RAM_DISK_ENABLE +/ USB_DISK_ENABLE +/ SD_DISK_ENABLE +/ MMC_DISK_ENABLE +/ SDSPI_DISK_ENABLE +/ NAND_DISK_ENABLE */ + +/*---------------------------------------------------------------------------/ +/ Function Configurations +/---------------------------------------------------------------------------*/ + +#define FF_FS_READONLY 0 +/* This option switches read-only configuration. (0:Read/Write or 1:Read-only) +/ Read-only configuration removes writing API functions, f_write(), f_sync(), +/ f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree() +/ and optional writing functions as well. */ + + +#define FF_FS_MINIMIZE 0 +/* This option defines minimization level to remove some basic API functions. +/ +/ 0: Basic functions are fully enabled. +/ 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_truncate() and f_rename() +/ are removed. +/ 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1. +/ 3: f_lseek() function is removed in addition to 2. */ + + +#define FF_USE_STRFUNC 1 +/* This option switches string functions, f_gets(), f_putc(), f_puts() and f_printf(). +/ +/ 0: Disable string functions. +/ 1: Enable without LF-CRLF conversion. +/ 2: Enable with LF-CRLF conversion. */ + + +#define FF_USE_FIND 0 +/* This option switches filtered directory read functions, f_findfirst() and +/ f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */ + + +#define FF_USE_MKFS 1 +/* This option switches f_mkfs() function. (0:Disable or 1:Enable) */ + + +#define FF_USE_FASTSEEK 0 +/* This option switches fast seek function. (0:Disable or 1:Enable) */ + + +#define FF_USE_EXPAND 0 +/* This option switches f_expand function. (0:Disable or 1:Enable) */ + + +#define FF_USE_CHMOD 0 +/* This option switches attribute manipulation functions, f_chmod() and f_utime(). +/ (0:Disable or 1:Enable) Also FF_FS_READONLY needs to be 0 to enable this option. */ + + +#define FF_USE_LABEL 0 +/* This option switches volume label functions, f_getlabel() and f_setlabel(). +/ (0:Disable or 1:Enable) */ + + +#define FF_USE_FORWARD 0 +/* This option switches f_forward() function. (0:Disable or 1:Enable) */ + + +/*---------------------------------------------------------------------------/ +/ Locale and Namespace Configurations +/---------------------------------------------------------------------------*/ + +#define FF_CODE_PAGE 437 +/* This option specifies the OEM code page to be used on the target system. +/ Incorrect code page setting can cause a file open failure. +/ +/ 437 - U.S. +/ 720 - Arabic +/ 737 - Greek +/ 771 - KBL +/ 775 - Baltic +/ 850 - Latin 1 +/ 852 - Latin 2 +/ 855 - Cyrillic +/ 857 - Turkish +/ 860 - Portuguese +/ 861 - Icelandic +/ 862 - Hebrew +/ 863 - Canadian French +/ 864 - Arabic +/ 865 - Nordic +/ 866 - Russian +/ 869 - Greek 2 +/ 932 - Japanese (DBCS) +/ 936 - Simplified Chinese (DBCS) +/ 949 - Korean (DBCS) +/ 950 - Traditional Chinese (DBCS) +/ 0 - Include all code pages above and configured by f_setcp() +*/ + + +#define FF_USE_LFN 2 +#define FF_MAX_LFN 255 +/* The FF_USE_LFN switches the support for LFN (long file name). +/ +/ 0: Disable LFN. FF_MAX_LFN has no effect. +/ 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe. +/ 2: Enable LFN with dynamic working buffer on the STACK. +/ 3: Enable LFN with dynamic working buffer on the HEAP. +/ +/ To enable the LFN, ffunicode.c needs to be added to the project. The LFN function +/ requiers certain internal working buffer occupies (FF_MAX_LFN + 1) * 2 bytes and +/ additional (FF_MAX_LFN + 44) / 15 * 32 bytes when exFAT is enabled. +/ The FF_MAX_LFN defines size of the working buffer in UTF-16 code unit and it can +/ be in range of 12 to 255. It is recommended to be set it 255 to fully support LFN +/ specification. +/ When use stack for the working buffer, take care on stack overflow. When use heap +/ memory for the working buffer, memory management functions, ff_memalloc() and +/ ff_memfree() exemplified in ffsystem.c, need to be added to the project. */ + + +#define FF_LFN_UNICODE 2 +/* This option switches the character encoding on the API when LFN is enabled. +/ +/ 0: ANSI/OEM in current CP (TCHAR = char) +/ 1: Unicode in UTF-16 (TCHAR = WCHAR) +/ 2: Unicode in UTF-8 (TCHAR = char) +/ 3: Unicode in UTF-32 (TCHAR = DWORD) +/ +/ Also behavior of string I/O functions will be affected by this option. +/ When LFN is not enabled, this option has no effect. */ + + +#define FF_LFN_BUF 756 +#define FF_SFN_BUF 34 +/* This set of options defines size of file name members in the FILINFO structure +/ which is used to read out directory items. These values should be suffcient for +/ the file names to read. The maximum possible length of the read file name depends +/ on character encoding. When LFN is not enabled, these options have no effect. */ + + +#define FF_STRF_ENCODE 3 +/* When FF_LFN_UNICODE >= 1 with LFN enabled, string I/O functions, f_gets(), +/ f_putc(), f_puts and f_printf() convert the character encoding in it. +/ This option selects assumption of character encoding ON THE FILE to be +/ read/written via those functions. +/ +/ 0: ANSI/OEM in current CP +/ 1: Unicode in UTF-16LE +/ 2: Unicode in UTF-16BE +/ 3: Unicode in UTF-8 +*/ + + +#define FF_FS_RPATH 2 +/* This option configures support for relative path. +/ +/ 0: Disable relative path and remove related functions. +/ 1: Enable relative path. f_chdir() and f_chdrive() are available. +/ 2: f_getcwd() function is available in addition to 1. +*/ + + +/*---------------------------------------------------------------------------/ +/ Drive/Volume Configurations +/---------------------------------------------------------------------------*/ + +#define FF_VOLUMES 1 +/* Number of volumes (logical drives) to be used. (1-10) */ + + +#define FF_STR_VOLUME_ID 1 +#define FF_VOLUME_STRS "SD" +/* FF_STR_VOLUME_ID switches support for volume ID in arbitrary strings. +/ When FF_STR_VOLUME_ID is set to 1 or 2, arbitrary strings can be used as drive +/ number in the path name. FF_VOLUME_STRS defines the volume ID strings for each +/ logical drives. Number of items must not be less than FF_VOLUMES. Valid +/ characters for the volume ID strings are A-Z, a-z and 0-9, however, they are +/ compared in case-insensitive. If FF_STR_VOLUME_ID >= 1 and FF_VOLUME_STRS is +/ not defined, a user defined volume string table needs to be defined as: +/ +/ const char* VolumeStr[FF_VOLUMES] = {"ram","flash","sd","usb",... +*/ + + +#define FF_MULTI_PARTITION 0 +/* This option switches support for multiple volumes on the physical drive. +/ By default (0), each logical drive number is bound to the same physical drive +/ number and only an FAT volume found on the physical drive will be mounted. +/ When this function is enabled (1), each logical drive number can be bound to +/ arbitrary physical drive and partition listed in the VolToPart[]. Also f_fdisk() +/ function will be available. */ + + +#define FF_MIN_SS 512 +#define FF_MAX_SS 512 +/* This set of options configures the range of sector size to be supported. (512, +/ 1024, 2048 or 4096) Always set both 512 for most systems, generic memory card and +/ harddisk. But a larger value may be required for on-board flash memory and some +/ type of optical media. When FF_MAX_SS is larger than FF_MIN_SS, FatFs is configured +/ for variable sector size mode and disk_ioctl() function needs to implement +/ GET_SECTOR_SIZE command. */ + + +#define FF_LBA64 0 +/* This option switches support for 64-bit LBA. (0:Disable or 1:Enable) +/ To enable the 64-bit LBA, also exFAT needs to be enabled. (FF_FS_EXFAT == 1) */ + + +#define FF_MIN_GPT 0 +/* Minimum number of sectors to switch GPT format to create partition in f_mkfs and +/ f_fdisk function. 0x100000000 max. This option has no effect when FF_LBA64 == 0. */ + + +#define FF_USE_TRIM 0 +/* This option switches support for ATA-TRIM. (0:Disable or 1:Enable) +/ To enable Trim function, also CTRL_TRIM command should be implemented to the +/ disk_ioctl() function. */ + + + +/*---------------------------------------------------------------------------/ +/ System Configurations +/---------------------------------------------------------------------------*/ + +#define FF_FS_TINY 0 +/* This option switches tiny buffer configuration. (0:Normal or 1:Tiny) +/ At the tiny configuration, size of file object (FIL) is shrinked FF_MAX_SS bytes. +/ Instead of private sector buffer eliminated from the file object, common sector +/ buffer in the filesystem object (FATFS) is used for the file data transfer. */ + + +#define FF_FS_EXFAT 1 +/* This option switches support for exFAT filesystem. (0:Disable or 1:Enable) +/ To enable exFAT, also LFN needs to be enabled. (FF_USE_LFN >= 1) +/ Note that enabling exFAT discards ANSI C (C89) compatibility. */ + + +#define FF_FS_NORTC 0 +#define FF_NORTC_MON 1 +#define FF_NORTC_MDAY 1 +#define FF_NORTC_YEAR 2020 +/* The option FF_FS_NORTC switches timestamp functiton. If the system does not have +/ any RTC function or valid timestamp is not needed, set FF_FS_NORTC = 1 to disable +/ the timestamp function. Every object modified by FatFs will have a fixed timestamp +/ defined by FF_NORTC_MON, FF_NORTC_MDAY and FF_NORTC_YEAR in local time. +/ To enable timestamp function (FF_FS_NORTC = 0), get_fattime() function need to be +/ added to the project to read current time form real-time clock. FF_NORTC_MON, +/ FF_NORTC_MDAY and FF_NORTC_YEAR have no effect. +/ These options have no effect in read-only configuration (FF_FS_READONLY = 1). */ + + +#define FF_FS_NOFSINFO 0 +/* If you need to know correct free space on the FAT32 volume, set bit 0 of this +/ option, and f_getfree() function at first time after volume mount will force +/ a full FAT scan. Bit 1 controls the use of last allocated cluster number. +/ +/ bit0=0: Use free cluster count in the FSINFO if available. +/ bit0=1: Do not trust free cluster count in the FSINFO. +/ bit1=0: Use last allocated cluster number in the FSINFO if available. +/ bit1=1: Do not trust last allocated cluster number in the FSINFO. +*/ + + +#define FF_FS_LOCK 0 +/* The option FF_FS_LOCK switches file lock function to control duplicated file open +/ and illegal operation to open objects. This option must be 0 when FF_FS_READONLY +/ is 1. +/ +/ 0: Disable file lock function. To avoid volume corruption, application program +/ should avoid illegal open, remove and rename to the open objects. +/ >0: Enable file lock function. The value defines how many files/sub-directories +/ can be opened simultaneously under file lock control. Note that the file +/ lock control is independent of re-entrancy. */ + + +#include // O/S definitions +#define FF_FS_REENTRANT 0 +#define FF_FS_TIMEOUT 0 +#define FF_SYNC_t HANDLE +/* The option FF_FS_REENTRANT switches the re-entrancy (thread safe) of the FatFs +/ module itself. Note that regardless of this option, file access to different +/ volume is always re-entrant and volume control functions, f_mount(), f_mkfs() +/ and f_fdisk() function, are always not re-entrant. Only file/directory access +/ to the same volume is under control of this function. +/ +/ 0: Disable re-entrancy. FF_FS_TIMEOUT and FF_SYNC_t have no effect. +/ 1: Enable re-entrancy. Also user provided synchronization handlers, +/ ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj() +/ function, must be added to the project. Samples are available in +/ option/syscall.c. +/ +/ The FF_FS_TIMEOUT defines timeout period in unit of time tick. +/ The FF_SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*, +/ SemaphoreHandle_t and etc. A header file for O/S definitions needs to be +/ included somewhere in the scope of ff.h. */ + + + +/*--- End of configuration options ---*/ + +#endif /* _FFCONF_H_ */ diff --git a/source/freertos_hello.c b/source/freertos_hello.c index c518655..f3cd6f5 100644 --- a/source/freertos_hello.c +++ b/source/freertos_hello.c @@ -8,29 +8,32 @@ /* FreeRTOS kernel includes. */ #include "FreeRTOS.h" -#include "task.h" #include "queue.h" +#include "task.h" #include "timers.h" /* Freescale includes. */ -#include "fsl_device_registers.h" -#include "fsl_debug_console.h" -#include "fsl_gpio.h" -#include "pin_mux.h" -#include "clock_config.h" -#include "peripherals.h" #include "board.h" +#include "clock_config.h" +#include "fsl_debug_console.h" +#include "fsl_device_registers.h" +#include "fsl_gpio.h" +#include "peripherals.h" +#include "pin_mux.h" +#include "ff.h" +#include "diskio.h" + +#include "user_tasks.h" /******************************************************************************* * Definitions ******************************************************************************/ -/* Task priorities. */ -#define hello_task_PRIORITY (configMAX_PRIORITIES - 1) +FATFS g_file_system; + /******************************************************************************* * Prototypes ******************************************************************************/ -static void hello_task(void *pvParameters); /******************************************************************************* * Code @@ -47,25 +50,16 @@ int main(void) BOARD_InitBootPeripherals(); BOARD_InitDebugConsole(); - if (xTaskCreate(hello_task, "HELO_TASK", 128, NULL, hello_task_PRIORITY, NULL) != - pdPASS) - { - PRINTF("Task creation failed!.\r\n"); - while (1) - ; - } - vTaskStartScheduler(); - for (;;) - ; -} + BaseType_t ret; + + ret = xTaskCreate(hello_task, "HELO_TASK", 512, NULL, 4, &g_hello_task_handle); + if(ret != pdPASS) goto err_out; + + vTaskStartScheduler(); + +err_out: -/*! - * @brief Task responsible for printing of "Hello world." message. - */ -static void hello_task(void *pvParameters) -{ for (;;) { - PRINTF("Hello world, current tick %ld.\r\n", xTaskGetTickCount()); - vTaskDelay(pdMS_TO_TICKS(1000)); + } -} +} \ No newline at end of file diff --git a/source/sdmmc_config.c b/source/sdmmc_config.c new file mode 100644 index 0000000..c4cbdf2 --- /dev/null +++ b/source/sdmmc_config.c @@ -0,0 +1,3 @@ +#include "sdmmc_config.h" +#include "fsl_iomuxc.h" + diff --git a/source/sdmmc_config.h b/source/sdmmc_config.h new file mode 100644 index 0000000..f0f6fcb --- /dev/null +++ b/source/sdmmc_config.h @@ -0,0 +1,10 @@ +#ifndef __SDMMC_CONFIG_H +#define __SDMMC_CONFIG_H + +#include "fsl_sd.h" +#include "clock_config.h" +#include "fsl_gpio.h" +#include "fsl_sdmmc_host.h" +#include "fsl_sdmmc_common.h" + +#endif \ No newline at end of file diff --git a/source/tasks/user_hello_task.c b/source/tasks/user_hello_task.c new file mode 100644 index 0000000..6a19317 --- /dev/null +++ b/source/tasks/user_hello_task.c @@ -0,0 +1,17 @@ +#include "fsl_debug_console.h" + +#include "FreeRTOS.h" + +#include "task.h" + +#include "ff.h" +#include "diskio.h" + +extern FATFS g_file_system; + +void hello_task(void *pvParameters) { + for (;;) { + PRINTF("Hello world, stack available: %ld.\r\n", uxTaskGetStackHighWaterMark(NULL) * 4); + vTaskDelay(pdMS_TO_TICKS(1000)); + } +} diff --git a/source/user_tasks.h b/source/user_tasks.h new file mode 100644 index 0000000..348db37 --- /dev/null +++ b/source/user_tasks.h @@ -0,0 +1,10 @@ +#ifndef __USER_TASKS_H +#define __USER_TASKS_H + +#include "FreeRTOS.h" +#include "task.h" + +TaskHandle_t g_hello_task_handle; +void hello_task(void *pvParameters); + +#endif \ No newline at end of file